WCH Horizontal Tank Mixer

Spiral Mixer

WCH Double Pulp Tank Mixer

  • Suitable Blending Material: Dry Powder , Wet Powder, advocate complementary material, suitable for mixed semi-solid liquid materials or viscosity is too large.
  • Batch Volumn: 100-600L;
  • Stirring Speed: 24 r/min;
  • Machine Weight:450-1300(KG);
  • Total Power: 4-11kw
  • Application: Pharmaceuticals, chemical, food.
  • Price: Cost around $188~7659.(Depend on Models and special customization).
  • HS code: 8479820090
Contact to Buy Mixer Tank
Download Catalogue

What is Horizontal Tank Mixer?

A horizontal tank mixer is a type of equipment used in various industries to blend or mix substances. Unlike vertical mixers, which stand upright, horizontal tank mixers are designed with a horizontal orientation. They are commonly used in applications such as food processing, chemical manufacturing, and pharmaceutical production.

These mixers typically consist of a tank-shaped container lying on its side, equipped with an agitator or mixing device. The agitator can be customized to suit the specific materials being mixed. It rotates within the tank to thoroughly combine ingredients and create a consistent mixture.

One of the key advantages of horizontal tank mixers is their ability to provide a more uniform blend of materials, which can be crucial for certain applications. Additionally, they are well-suited for incorporating ingredients with low inclusion rates, often as low as 1 kg per metric ton. This precision makes them particularly useful in industries where accurate mixing is essential.

Horizontal mixers also tend to have little or no residue left in the tank after mixing, thanks to their design, which ensures complete discharge of the mixed material. This is a notable advantage in applications where cross-contamination or leftover material can be problematic.

In summary, a horizontal tank mixer is a specialized mixing equipment with a horizontal design, ideal for applications requiring precise and uniform blending of ingredients while minimizing leftover residue in the tank.

Structure(Design):

A Tank Mixer comprises several key components, including a tank cover, tank mixer motor,an agitator, bearings, a driving mechanism, and a sealing device. Depending on your requirements, you can also add heating or cooling equipment to the tank.

Both the tank body and cover come with various features like inlets, outlets, observation ports, temperature and pressure gauges, steam distillation ports, and safety vents. The type of agitator used can vary based on the specific production process, with options such as paddle, anchored, frame, or propeller types. If needed, the factory can customize the design to meet your specific needs.

Application:

A Tank Mixer is a hygienic and clean piece of equipment with a fully enclosed vertical design. It comes equipped with functions for heating, cooling, insulating, and mixing. This versatile tank is specially designed for use in the food, dairy, beverage, pharmaceutical, winemaking, flavor, and chemical industries.

The tanks feature a jacketed layer, allowing you to heat or cool the contents by introducing steam or cooling water. The agitator within the tank ensures that the materials are thoroughly mixed at the most suitable temperature.

What does a tank mixer do?

A tank mixer plays a crucial role in winemaking by ensuring that everything inside the tank, like the grape juice and other ingredients, is mixed thoroughly. This gentle stirring action takes place during fermentation, maintaining an even temperature and making sure yeast and nutrients are evenly distributed. It’s also handy when it comes to creating a uniform blend before the wine is bottled, ensuring that every bottle of wine is consistent in quality.

Horizontal Tank Mixer is ideal for blending various ingredients, such as short doughs, tortillas, fillings, pie doughs, health breads, cheesecakes, muffin batter, and a range of other recipes. These mixers come with different mixing arms that can be tailored to the specific type of dough or mixture you’re working with, offering a high degree of customization.

Technical Performance:

Heating Method: The tank can be heated using either steam or electrical heating to generate heat for material sterilization.

  • Temperature Control: Electric thermocouples and controllers are used to measure and maintain the temperature as needed.
  • Tank Body: The interior surface of the tank is meticulously mirror-polished to achieve a smooth finish with a Ra value of ≤0.4um.
  • Cover: The tank’s cover features a user-friendly manhole for easy access and cleaning. It is also mirror-polished both inside and outside.
  • Bottom Structure: The tank’s bottom undergoes a spinning process to create smooth R angles, ensuring a flawless interior surface after welding.
  • Jacket Options: You can choose from various jacket types, such as full jacketed, coil, miller plate, and more.
  • Insulation Material: The tank is insulated with eco-friendly polyurethane foam, providing excellent thermal insulation.
  • Shell Treatment: The tank’s shell can be given a mirror polish or a 2B color matte or 2B matte surface polishing treatment.
  • Agitating Device: The top-center agitating system features a movable sleeve connection between the reducer’s output shaft and the agitating shaft, making disassembly and cleaning convenient. This design eliminates the risk of hidden external bolts.
  • Emulsifying Device: The tank is equipped with a high-shear dispersion emulsifying machine for effective dispersing, shearing, and emulsifying, resulting in stable, high-quality products.
  • Supporting Feet: You can choose between circular tube or hanging ear-type supporting feet for the tank.
  • Welding Process: Flanging processes with smooth arc transitions are used for the tank’s welding, ensuring a clean, flawless, and aesthetically pleasing appearance.

Working Principle(tank mixer design):

This machine is a horizontal trough-type double-paddle mixer, primarily used in the pharmaceutical industry to uniformly mix dry or wet powdered materials in different proportions. During the mixing process, it does not cause material dissolution, evaporation, or deterioration. The machine is also suitable for the chemical and food industries, where it mixes different main and auxiliary materials, making it ideal for mixing semi-solids, liquids, or highly viscous materials.

Structural features: The machine has an integral frame, and its transmission system operates smoothly. The mixing paddles and parts that come into contact with materials are made of stainless steel, providing excellent corrosion resistance to maintain the quality of the mixed materials without contamination or discoloration. The transmission mechanism mainly uses pot wheels, pot rods, and gear drives, resulting in minimal noise during operation. It also has sufficient oil storage capacity for effective lubrication, enhancing the machine’s lifespan. The machine is equipped with electrical controls for easy operation and utilizes automatic incremental feeding, reducing the operator’s workload. It is suitable for the pharmaceutical, chemical, and food industries for mixing uniform or pasty materials. The machine achieves uniform mixing through mechanical rotation, causing the dual-S-shaped mixing blades to rotate, propelling the materials to flip back and forth evenly.

How to Calculate the Volume of tank mixer (gallon to liter)?

To convert gallons to liters, you can use the conversion factor of 1 US gallon being approximately equal to 3.78541 liters. Here are the conversions for the given tank mixers:

  • 5 gallon tank mixer:
    5 gallons × 3.78541 liters/gallon ≈ 18.93 liters
  • 30 gallon tank mixer:
    30 gallons × 3.78541 liters/gallon ≈ 113.56 liters
  • 300 gallon tank mixer:
    300 gallons × 3.78541 liters/gallon ≈ 1,135.14 liters
  • 500 gallon tank mixer:
    500 gallons × 3.78541 liters/gallon ≈ 1,892.71 liters
  • 1000 gallon tank mixer:
    1000 gallons × 3.78541 liters/gallon ≈ 3,785.41 liters

So, the tank mixers in liters are approximately as follows:

  • 1000 gallon tank mixer ≈ 3,785.41 liters
  • 30 gallon tank mixer ≈ 113.56 liters
  • 300 gallon tank mixer ≈ 1,135.14 liters
  • 5 gallon tank mixer ≈ 18.93 liters
  • 500 gallon tank mixer ≈ 1,892.71 liters

Electric Mixer Tank for Sale (Stainless Steel):

Universal Grinder Youtube Video (See More)

About LKMixer

LKMixer is a professional manufacturer for fertilizer production line, grinder, mixer and granulator, shredder. These machines are widely used in food, pharmaceutical, cosmetic, health care products and chemical industries. The Food materials like Peanut, mushroom, seeds, potato, bean, tobacco, salt, cannabis, tea, Sugar, corn, Coffee, rice, pepper, grain as so on. Grinders have many types such as Pulse Dust Grinder which suitable for zero pollution environment, Turbine Mill  which is suitable for coffee bean, 12-120mesh all can meet, Ultrafine Grinding Mill covers 80-200mesh, and also Winnowing Dust Grinder or other grinding machines like SF Hammer. Welcome to contact us for details. Contact us for more information. Proposal, catalog, quotation. Mobile/WhatsApp: +86 18019763531 Tel: +86 21 66037855 Email: sales@lkmixer.com

Contact Us

FAQ(Click and See More)

Yes, our factory produced grinder, mixer, pulverizer for over 20 years.

Yes, we have video and word file lessons to teach customer how to operate the machine.

Yes, water cooling system can customize according to customer request. Many of the machine we producing is with water cooling system.

Yes, we provide the suitable screen and knife and other spare parts all the life time with nice price for our customer.

We can provide 0.5mm, 1mm thickness screens.
Material type of screen: SUS304 stainless steel.
You can choose another type of screen, also stainless steel, like the follow video shows, the screen have 2 layers, one layer large hole, another layer 40mesh as you request. This two layers are welded together. this kind of screen is more cheap to save the cost.

Yes, we have CCC, GB, EN, IEC, UL certification for motors.

We have 20 years manufacturing experiences; 15600 cubic meters factory area; 5000sets annual capacity; 55 professional engineers;

South America: Brazil, Colombia, Peru, Bolivia, Uruguay, Paraguay ;Romania;
USA with UL Certification
Middle East: Saudi, Arabia, Oman, Turkey
Europe: Russia, Australia, Belarus, Ukraine, Poland

– 7*24 customer service online;
– 7*24 engineers online services;
– 12 months warranty services.

– We offer full services covers whole process of your new project. Including your factory feasibility assessment, process flow chart, preliminary factory machines layout and factory building planning, project budget estimation, project time schedule arrangements, etc.
– We supply sample processing tests as to your detail product. To estimate the capacity of machine, this helps you controls better to the capacity and get to know more accuracy of quantity of machine you need to book. In our test station where are equipped with our various machine products,this is also help you compare performances of different types of machines or process.
– For large machine. If neccessary, we can assign engineers to the your project site and offer on-site technical instruction and supervision during the machine installation, commissioning and test run.

– Warranty period is 12 months after installation.
– We offer lifetime service for our machine products after the delivery, and will follow up the machine status with our clients after the successful machine installation in our clients’ factories.
For details, please contact our project consultants, thank you.

– Choose small or large ? Calculate your current customer capacity request, this is to get a estimate capacity needs. To think about you only for small quantity use or large quantity. Do you want to expand your customer base so that need to expand your capacity in near future? If yes, you can order larger machine instead of small machine. If not, smaller one is more suitable for you.
– Choose single or whole group? Single machine is cheaper and easy to move from here to there, space location are also easy. Whole group machine including material feeder, main machine, cyclone sperator and rotary valve. Whole group machine not easy to move cause of link of each portions. But whole group also advantages such as easy to dust collect, save manpower. Think about clearly what you want, we would know which is right to choose.
– If you think about your customers and volume, you’ll be off to a good start in knowing what you need from your grinder.

If you are a large factory request several machine. You may think the question of quantity that you need to purchase. This question actually we have already talked when we previously discussed how much the grinder can produce in an hour.
Based on the capacity of how much kg/hour that we can get, it’s very each to calculate the quantity of machine that you may need finally.
One of the questions that may pay attention here is, how many hour you plan to work per day? If you plan to work 24 hours non-stop, you need to have cooling water system definitely to cool down the machine. And the working hour also need to be calculated into your capacity calculation.
Automatically material feeder helps to feed the raw material automatically, so that no need to stop and refill the hopper frequently. Cyclone Seperator helps output material quickly, vibrating table screener helps screen out the qualified fineness material. All these portion run automatically will significantly help improve the efficiency and capacity.
A good rule of thumb to remember is that a larger capacity usually also means a higher level of speed. 

Quality is of paramount importance to just about everyone, and it should be to you, too.
Customers always want the quality in their purchasing, and they will keep long term business with high quality supplier.
Always offering high-quality grinder machine to our customers will earn us a solid reputation with them.
Keeps in mind about quality, we ensure our quality through following items:
– Material: we use 304 or 316 stainless steel body, 316 stainless steel for raw material contact portion.
The material of body always decide by customer, we will confirm the material type with you before you load order.
– Cooling Water System: jaket design allow ooler temperatures while grinding, preventing the burning of the raw material.
– Grinding Disc and Knife Cutter Design: The industry standard in material for grinding discs is steel, but there are different types of steel to choose from, such as die-cast and tungsten carbide. Good disc and knife design helps cut the material efficienctly. This also ensure the high quality of result mesh fineness.

Convenience to operate for your employees and yourself is also very important.
Your operator may need to carry the material back and forth in batches. Your operator may need to stop machine to clear and clean machine frequently. Your operator may also need to do screens the size of fineness after grinding and then put the inqualified powder back to machine to do grinding second time.
Yes, these are all the problems. But LINKER Pulverizer helps you reduce or solve these probems. You only need to buy the whole set group, which including automatically feeding system, grinding main machine, cyclone separator system, screen system after grinding and even an back material system back to grinder.
Save the manpower also helps to save the cost.

Yes. 100% of inspection for each step of products will be carried out by QC department until shipping.

An industrial grinder is a machine designed to reduce the size of materials by grinding or crushing them. Here are some of the common tasks performed by industrial grinders:
Grinding: Industrial grinders are commonly used for grinding materials to a desired particle size. This can be done using various types of grinders, such as angle grinders, bench grinders, and surface grinders, depending on the specific application.
Crushing: Industrial grinders are also used for crushing materials into smaller pieces. This can be useful in various industries such as mining and construction, where materials need to be crushed for further processing.
Polishing: Industrial grinders can be used for polishing surfaces of materials to achieve a desired finish. This is commonly done using angle grinders and other handheld grinders.
Sharpening: Bench grinders are commonly used for sharpening tools, such as knives and scissors, by grinding them against a rotating abrasive wheel.
Overall, industrial grinders are versatile machines that can perform a wide range of tasks, depending on the specific application and type of grinder used.

Choosing the right crusher for your application involves considering a variety of factors. Here are some key factors to consider when choosing a crusher:
Type of material: The type of material that needs to be crushed is an important factor to consider. Different crushers are better suited for crushing different types of materials. For example, jaw crushers are well-suited for crushing hard, abrasive materials like granite, while impact crushers are better for softer materials like limestone.
Size of material: The size of the material to be crushed is also an important consideration. Larger materials may require a larger crusher or a crusher with more power.
Capacity: The amount of material that needs to be processed per hour or per day is another important consideration. Different crushers have different capacities, so it’s important to choose a crusher that can handle the volume of material you need to process.
Desired final product size: The final product size you need will also impact your crusher choice. Some crushers produce a more uniform product size than others, while others are better for creating coarse or fine materials.
Maintenance requirements: The maintenance requirements of the crusher you choose can also be an important consideration. Some crushers require more maintenance than others, and the cost and frequency of maintenance should be factored into your decision.
Budget: Finally, your budget is an important consideration when choosing a crusher. Different crushers have different price points, so it’s important to choose a crusher that fits within your budget.
Overall, choosing the right crusher requires careful consideration of your specific application and requirements, and weighing the pros and cons of each option. Consulting with a knowledgeable equipment supplier or manufacturer can also be helpful in making an informed decision.

An industrial grinder is a machine used to reduce the size of materials through grinding or crushing. These machines are commonly used in various industries such as mining, construction, manufacturing, and food processing.
Industrial grinders come in different types and sizes, depending on the specific application and the material being processed. Some of the common types of industrial grinders include:
Angle grinders: These are handheld grinders used for cutting, grinding, and polishing various materials.
Bench grinders: These are stationary grinders mounted on a bench or pedestal and used for grinding and sharpening tools.
Surface grinders: These are machines used to grind flat surfaces of materials to a high degree of precision.
Cylindrical grinders: These are machines used for grinding cylindrical surfaces of materials.
Centerless grinders: These are machines used to grind cylindrical and other types of workpieces without using a centering device.
Industrial grinders are essential machines in many industries, as they help reduce the size of materials, improve efficiency, and increase productivity.

Jet mills, pin mills, and ball mills can all be categorized as ultrafine grinders. These mills are capable of producing very fine particles and powders, and are commonly used in industries such as pharmaceuticals, food processing, and cosmetics, where ultrafine particles are required for various applications. The specific type of mill used as an ultrafine grinder will depend on the material being processed and the desired end product.

Ultrafine grinders use mechanical grinding and air pressure to achieve size reduction. In these machines, the material to be ground is fed into a grinding chamber, where it is subjected to mechanical forces such as impact, compression, and attrition. As the material is ground, it is also exposed to a stream of high-pressure air or gas, which helps to break down the particles and create a fine powder.

The combination of mechanical grinding and air pressure allows ultrafine grinders to achieve a very fine particle size, often in the sub-micron or nanometer range. This makes them particularly useful for applications that require very small particle sizes, such as in the pharmaceutical, cosmetics, and food industries.

A turbo grinder is a type of angle grinder that is specifically designed for heavy-duty applications, such as grinding and cutting thick metal and concrete. It features a high-powered motor and a specialized blade or wheel that rotates at high speeds to remove material quickly and efficiently.

Turbo grinders are typically larger and heavier than standard angle grinders, and are often used in industrial settings such as construction sites and metalworking shops. They are capable of removing large amounts of material in a short amount of time, making them ideal for projects that require aggressive grinding or cutting.

Some turbo grinders may also come equipped with dust collection systems, which help to control the amount of debris and dust generated during use. This can be especially important when working with concrete or other materials that create a lot of dust when ground or cut.

In pharmacy, a hammer mill is a type of size reduction equipment that is used to reduce the particle size of various types of pharmaceutical ingredients.

Hammer mills are commonly used in the pharmaceutical industry for grinding and milling a wide range of materials, including:

  1. Active pharmaceutical ingredients (APIs): Hammer mills can be used to grind APIs into fine powders for use in tablet and capsule formulations.
  2. Excipients: Hammer mills can be used to grind excipients, such as lactose and magnesium stearate, into fine powders for use in tablet and capsule formulations.
  3. Raw materials: Hammer mills can be used to grind raw materials, such as herbs and spices, into fine powders for use in herbal medicines and supplements.
  4. Drug delivery systems: Hammer mills can be used to grind materials for drug delivery systems, such as nanoparticles and microparticles.
  5. Formulation development: Hammer mills can be used in formulation development to grind and blend various materials to achieve a desired particle size and consistency.

Overall, the use of a hammer mill in pharmacy allows for efficient and precise size reduction of a wide range of pharmaceutical ingredients, which is important for ensuring the quality and effectiveness of pharmaceutical products.

A pulverizer is a type of mechanical equipment that is used for grinding, crushing, or pulverizing different materials into smaller particles. Pulverizers are commonly used in a variety of industries, including mining, construction, agriculture, food processing, and pharmaceuticals.

The main purpose of a pulverizer is to reduce the size of materials to a fine powder, which is required for various applications. Pulverizers use a variety of mechanisms to accomplish this, including:

  1. Impact: The pulverizer uses high-speed rotating hammers or blades to impact and crush the material.
  2. Shear: The pulverizer uses sharp blades to cut and shear the material.
  3. Compression: The pulverizer uses rollers or plates to compress and crush the material.
  4. Attrition: The pulverizer uses friction to break down the material.

Pulverizers can be used for a variety of materials, including coal, rock, clay, limestone, wood, and various types of ores. They are commonly used in the mining industry to crush and grind ore into fine particles for further processing.

In addition to mining, pulverizers are also used in the food industry to grind spices, sugar, and other food products into fine powders. They are also used in the pharmaceutical industry to pulverize tablets, capsules, and other forms of medication for further processing.

1. Please provide to us the product material you are use the machine to grinding for.

2. The capacity you request.
3. Consider the layout of your factory, the height width and length of the machine location.
4. If your product material is not normal type, we can arrange trail to estimate the capacity of output.
5. Our sales will recommend the right mode to you.

Yes, large machine is the major products we are producing. These machine exported to over 30 countries and regions, customer feedback quite good.

Because the medium or small size running speed is faster than larger machine. The noise is decided by the running speed. Also, if there is hole open on the machine, the noise will also larger.

It is totally ok to use. No leakage.

ok, it is no problem, we can add emergency shut off, if the main grinder door open, the machine can not start, and if the machine in running and the main grinder door open, the machine will stop, but the running of the machine can not stop immediately because of the iterance. The rotating of the spindle will stop slowly after the machine shut down because of inertia, so it is still dangerous to open the door in running of machine.

– Yes, OEM or ODM. Machine can be customized according to customer detail requirement, including capacity and voltages, motor certifications.
– Drawing and raw materials also can be customized.

Our products includs powder grinding mills, classifiers, coating machines, mixing machines, etc.

Normally 60 to 90 days after receive the deposit payment.

– 50% by T/T deposit payment.
– 50% balance by T/T before shipment.

– For machines, we ship with export wooden box and pallet suitable for long time boat transportation in standard containers or Bulk by sea.
– For spare parts, wooden Case and pallet for delivery by air.

We send engineers to the clients’ project site and offer on-site technical instruction and supervision during the machine installation, commissioning and test run.

Right size is definitely important for grinder business. 
If your business is small, you may not have the space to accommodate a large grinder. Read keep in mind, While, that a smaller grinder doesn’t have to mean that it’s not able output as much as a bigger one.
On the contrary, if you have a lot of space, you may require different things from your grinder.
For example, you may want to have dust collector and material feeder for your enviornment production and operation convenience.

Advantages of Vertical Feed Mixers:

Cost-Effective: Vertical feed mixers are generally more affordable to purchase and operate. However, this can vary depending on the specific product’s material and design.

Availability: These mixers are readily available in the market, thanks to their popularity among smaller feed mills, which opt for them due to their cost-effectiveness. This results in a wide range of options to choose from in the market.

Space Efficiency: Vertical mixers have a smaller footprint, making them suitable for feed mills with limited space.

Advantages of Horizontal Mixers:

Uniform Mixing: Horizontal mixers provide a more consistent blend of ingredients. This is particularly important for animal species or classes that receive smaller meals, although it may not be as crucial for others.

Lower Inclusion Rates: Horizontal mixers can incorporate premixes with lower inclusion rates, typically as low as 1 kg/MT. In contrast, most vertical mixers have a minimum inclusion rate of 3 kg/MT.

Minimal Feed Carryover: Horizontal mixers are designed to ensure complete discharge of the mixed feed, minimizing feed residue. Vertical mixers tend to have some unavoidable residue.

In summary, the advantages of one type of feed mixer are often the disadvantages of the other. Therefore, the choice should be based on the specific products being mixed. Consider the following scenarios:

Home Mixers for Farms: Small to medium farms, usually dealing with a single animal species, tend to opt for vertical mixers. This is because they aim to reduce costs and typically purchase low-inclusion level products like premixes locally, which do not require the precision of horizontal mixers. Large farms that make bulk purchases of micro-ingredients may choose a vertical mixer to offset the cost by reducing raw material expenses.

Mixers for Local Feed Plants: Local feed plants primarily focus on producing complete feeds for end-users and generally do not use very-low inclusion level micro-ingredients. They often concentrate on one or two species, with the exception of feeds for sheep and monogastrics, which require minimal feed residue for copper content reasons.

Local Premix Plants: In markets where home mixing is common, local premix suppliers often provide comprehensive premix packages for various species. These businesses are recommended to invest in horizontal mixers for the reasons mentioned earlier, and it can serve as a marketing point of differentiation, although this is not commonly practiced for various reasons.

There are several types of tank mixers, each designed for specific applications and mixing requirements. Some common types of tank mixers include:

Agitators: Agitators are simple mixers that use rotating blades or impellers to stir the contents of a tank. They are commonly used in various industries and come in different configurations, such as paddle agitators, turbine agitators, and anchor agitators.

Static Mixers: These mixers don’t have any moving parts. They rely on stationary elements within the mixer to create turbulence and mix the fluids as they pass through. Static mixers are often used for blending and homogenizing liquids and gases.

Homogenizers: Homogenizers are used to create a uniform mixture by forcing materials through a narrow orifice or valve at high pressure. They are commonly used in the food and pharmaceutical industries to create stable emulsions and suspensions.

Emulsifiers: Emulsifiers are specialized mixers that are designed for creating emulsions, which are stable mixtures of immiscible liquids, such as oil and water. They are used in the production of various products like mayonnaise and cosmetics.

High Shear Mixers: These mixers are used to apply intense shearing forces to mix or disperse substances within a liquid. They are often used in the production of pharmaceuticals, chemicals, and cosmetics.

Ribbon Blenders: Ribbon blenders have a horizontal, U-shaped trough with a ribbon-like agitator that rotates inside. They are commonly used in the food and chemical industries for blending powders, granules, and other dry materials.

Planetary Mixers: Planetary mixers are commonly used in the bakery and confectionery industry. They have a mixing head that rotates on an offset axis while the mixing bowl rotates in the opposite direction, providing thorough mixing.

Magnetic Mixers: These mixers use magnetic fields to rotate a magnetic stir bar within a sealed container. They are often used in laboratories and in applications where it’s important to avoid contamination or leakage.

Bottom Entry Mixers: These mixers are designed to mix the contents of a tank from the bottom, providing efficient mixing and preventing settling of solids.

Top Entry Mixers: These mixers are installed through the top of a tank and are used for mixing large volumes of liquid or slurry materials in industries like chemical processing and water treatment.

The choice of the appropriate tank mixer type depends on factors such as the specific application, the characteristics of the materials being mixed, and the desired mixing results.

During the mixing process, the materials inside the machine are subjected to the action of two rotating rotors moving in opposite directions, creating a motion that conforms to the machine’s design. The paddles on the rotors drive the materials to rotate counterclockwise along the inner wall of the machine while also causing the materials to tumble from side to side. This tumbling motion results in a zone of weightlessness at the intersection of the two rotors. In this area, regardless of the shape, size, or density of the materials, they momentarily experience a state of weightlessness, causing the materials to continuously tumble and interact in all directions within the machine. This leads to a fast, gentle, and uniform mixing effect.

Within the machine, the particles of the materials are influenced by the action of the paddles, undergoing both circumferential and axial movements. Depending on the mixing state of the materials, there are convection mixing, shear mixing, and diffusion mixing.

Convection Mixing: As shown in the diagram, the materials in the two rotor zones flow axially in opposite directions. Upon reaching the ends of the rotors, the action of a set of small-angle paddles at the rotor ends redirects the materials towards the other rotor zone, creating a horizontal cyclic flow of materials throughout the machine. Simultaneously, the materials in the two rotor zones also rotate around their respective axes, forming a vertical cyclic flow of materials in each rotor zone. The materials at the boundary between the two rotor zones also undergo lateral cross-flow.

Shear Mixing: Under the action of the paddles, the materials create shear surfaces and interact by sliding and colliding with each other, resulting in shear mixing.

  1. Diffusion Mixing: Diffusion mixing occurs throughout the machine but is more prominent in the central region, where the two rotors rotate in opposite synchrony. In this area of rotor blade overlap, materials near the central axis are affected by the rotor blades. As these materials leave the paddles’ influence, inertia causes them to disperse in space. During this dispersion process, materials rub against and permeate each other, creating a fluidized area near the central axis. Each particle can move freely in this fluidized area, allowing for thorough diffusion mixing. In this region, friction is minimal, and the mixing action is gentle, preventing segregation of the mixture. This is particularly beneficial for fine particle materials (trace additives).

In summary, the double-shaft paddle mixer achieves efficient and uniform mixing through a combination of convection, shear, and diffusion mixing, resulting in a homogeneous blend of materials.

Recommend Reading

Table of Contents