What is the mixing or blending tank? Here to choose the right tank for your materials

What is the mixing or blending tank?

Here to choose the right tank for your materials:

1.What is a mixing or blending tank?

Steel stainless mixing tanks are machine containers used for blending different components together.  Tanks are made up of different materials like glass, plastic, strong rubber, and the most common one for business is the stainless steel. Frequently, stainless steel materials are used in fabricating tanks for smooth surface, easy cleaning, and convenience of use.  Sometimes, copper is used for this tank, but because of the copper’s possibility to have adverse reactions to some substances, copper is rarely used and more expensive.

Steel stainless tank is widely used in coatings, medicine, building materials, chemicals, pigments, resins, food, scientific research and other industries. The equipment can be made of carbon steel, stainless steel and other materials according to the process requirements of the user's product, and be equipped with heating and cooling devices to meet different process and production needs.

In manufacturing factory, the role of a mixing tank is very common in the formation of materials for production.  Big amounts of raw components are put into the big mixing tank to be blended together through refined mixing.  The procedure results to the mass production of a certain manufactured goods.  Inside a bakery shop, for instance, a mixing tank contains yeast, flour, water, and sugar.  Each ingredient in certain amounts is put together for complete mixing.

2.How Mixing Works?

These tanks are designed for liquid mixing which have distinct plumbing lines channelled to and from the unit. When there is a need for liquid ingredients, these components are directly piped to the tank.  While liquids are being mixed in consistency, they are transferred into the next stage—a pipeline beneath the tanks.  Pipes are easy-to-clean and it can be done by putting water through the permanent pipe.  These pipes are vacuum-operated with the help of a control system working at the main part of the mixing tank.

The structure of the mixing tank: the mixing tank is composed of a mixing tank body, a mixing tank cover, a stirrer, a support, a transmission device, a shaft sealing device, etc., and a heating device or a cooling device can also be configured according to the process requirements.

There are substances that cannot be mixed together because of some likely chemical reactions.  By putting the chemicals in individual containers and mixing them in the tank when needed, manufacturers can purchase big amount of every ingredient without necessarily struggling against hazardous substance reactions.  The result is a more protected environment for employees and cost-efficiency on the manufacturer.

Many people have become anxious about the process of mixing elements together.  Probably, they might have heard issues about scorching or damages on property.   It can also be that the product labels don’t give enough details as to the right way of mixing them.  Many believe that if it’s not indicated in the product label, then mixing is not allowed.  The fact is many products can be mixed together except when two or more compounds of anti-cholinesterase are combined.  An example is mixing a certain pesticide with adjuvant.

3.What type of stirring type for your materials?

Type of agitator:

①The propeller agitator is composed of 2 to 3 propeller blades (Figure 2). The working speed is relatively high, and the peripheral speed of the outer edge of the blade is generally 5 to 15m/s. The propeller agitator mainly causes axial liquid flow and produces a larger circulation volume. It is suitable for stirring low-viscosity (<2Pa·s) liquids, emulsions and suspensions with a solid particle content of less than 10%. The rotating shaft of the agitator can also be inserted into the tank horizontally or diagonally. At this time, the circulation loop of the liquid flow is asymmetric, which can increase turbulence and prevent the liquid surface from sinking.

(Figure 2)

②Turbine agitator” consists of 2 to 4 flat or curved blades mounted on a horizontal disc (Figure 3). The ratio of the outer diameter, width and height of the blade is generally 20:5:4, and the circumferential speed is generally 3-8m/s. The turbine creates highly turbulent radial flow when rotating, which is suitable for the dispersion of gas and immiscible liquids and the liquid-liquid reaction process. The viscosity of the liquid being stirred generally does not exceed 25Pa·s.

(Figure 3)

③Paddle type agitator has two types: flat paddle type and inclined paddle type. The flat paddle agitator consists of two straight paddle blades. The ratio of the diameter of the blade to the height is 4-10, the circumferential speed is 1.5-3m/s, and the radial liquid flow velocity generated is small. The two blades of the oblique paddle agitator (Figure 4) are turned by 45° or 60° in opposite directions, thus producing axial liquid flow. The paddle agitator has a simple structure and is often used for mixing low-viscosity liquids and dissolving and suspending solid particles.

(Figure 4)

④ The shape of the outer edge of the blade of the anchor type agitator should be consistent with the inner wall of the stirring tank (Figure 5), with only a small gap between them, which can remove the viscous reaction product attached to the tank wall or the solid matter accumulated on the bottom of the tank, and keep it relatively Good heat transfer effect. The peripheral speed of the outer edge of the blade is 0.5~1.5m/s, which can be used to stir Newtonian fluids and pseudoplastic fluids with a viscosity of up to 200Pa·s (see the flow of viscous fluids. Only when stirring high-viscosity liquids, there is a larger liquid layer Stagnation zone.

(Figure 5)

⑤ Ribbon stirrer The outer diameter of the ribbon is equal to the pitch (Figure 6). It is specially used to stir high-viscosity liquids (200～500Pa·s) and pseudoplastic fluids. It is usually operated under laminar flow.

(Figure 6)

⑥Magnetic stirrer Corning digital heater has a closed-circuit knob to monitor and adjust the stirring speed. The microprocessor automatically adjusts the motor power to adapt to the water quality, viscous solution and semi-solid solution.

⑦Magnetic heating stirrer Corning digital heating stirrer has an optional external temperature controller (Cat. No. 6795PR), they can also monitor and control the temperature in the container. [1] [2]

Heating and cooling device:

Generally, the unit of use depends on whether the material is heated or dried or cooled. In the customized range, the temperature should be below 200℃, and the working pressure should be lower than 0.1Mpa. The heating method can be determined according to the production conditions of the user. There are two heating methods: hot oil and other medium circulation and direct electric heating. The circulation of medium such as hot oil is that the heat transfer oil is heated to a certain temperature in a separate heating tank, and then it is transported through a hot oil pump; direct heating is to install an electric heating tube directly on the jacket to heat the heat transfer oil to the required temperature ( The temperature can be adjusted according to the actual situation). The cooling cycle uses water to circulate inside and outside the jacket, so that the material does not produce agglomeration or stickiness at a certain temperature. It can also be heated or cooled by adding coils and other forms according to user requirements.

(Note: Generally, the heating or cooling medium is used to adopt the principle of low pipe inlet and high pipe outlet) [3]

4.What are the benefits of using mixing tank?

An industry can only function successfully when there is good working machinery.  Hence, it is important to prepare this for efficiency; otherwise, this may cause some threats to the working people.  Equipment and machinery with sub-standard quality will only need many repetitive mending.

Stainless mixing tanks are aimed at processing liquid, with packaging as the next phase of the procedure.  The system includes effective moving and stirring with blending techniques to heighten the mixing process.  Significantly, the use of mixing tanks reduces the amount of task and time used while working. The right kind of tank with the right features is crucial to the success of the production.

Experts and successful businessmen with the latest and modern machine help in the improvement of their work.  Various fields like chemical manufacturing, building construction, and food processing make use of the mixing tanks.  They help in producing less waste compared to the traditional, manual job.

Many tools are needed to carry out the procedure conveniently and effectively.  Mixing systems can manage various processing vessels at different ranges—from low to the high-end performances.  Most conveniently, workers can perform more than one bulk of task simultaneously.

Different models of mixing tanks fit every possible need for mixing.  Machines are designed with excellence to allow quick assembly of different amounts of components.  With GR model mixing tank, the high-quality extensive control system guarantees that mixing units are precisely designed, manufactured, and tested for ultimate working condition.  Irrespective of the size, capacity, or type, BTM will always be a reliable partner to the success of their client.

*Tips of using the mixing tank:

1. Operation:

① Check whether the equipment is "normal" and confirm that the equipment is clean and meets the requirements.

② Check whether the connection between the mixing paddle and the motor is firm and reliable.

③ Choose a stirred tank according to the amount of material liquid to be processed. Generally, the amount of material liquid sample is not less than 1/3 of the volume of the stirred tank.

④ Slowly adjust the speed control knob (frequency conversion speed regulator) to slowly increase the stirring speed until it reaches the required speed. The speed adjustment range is 80--1400 r/min.

⑤ Turn the speed control knob to the position where the speed is zero.

⑥ Add material liquid and turn on the power switch.

⑦ After using the equipment, turn off the power.

2. Attention:

① Pay attention to the distance between the stirring blade rotor and the container. If it is a glass container, the stirring speed should not be too fast.

② If you need to process the sample, you must first turn off the power switch and adjust the speed knob to the minimum value, and then repeat the above operation.

③ If there is a serious spark, it must be shut down immediately for inspection and repaired to avoid greater losses.

④ If the motor does not rotate during use, check the power supply, speed regulator, fuse and motor brush first. If the speed control part or the motor is damaged, notify the maintenance personnel for repair.

3.Maintenance

1. This equipment is atmospheric pressure equipment, and the heat exchanger is regarded as atmospheric pressure if the pipeline is unblocked. If the pressure is too high, please check whether the inlet and outlet are blocked.

2. 40#-50# engine oil or 70#--90# extreme pressure industrial gear oil should be installed in the reducer. After the first 20 days of operation (8 hours a day), replace the engine oil and clean the oil in the tank. Replace and clean the tank jacket gap every 3-5 months. (Except without reducer)

3. If a condenser is equipped, it can be judged according to the heat exchange effect whether to clean the heat exchange pipes.

4. The loading volume in the mixing tank should not exceed the effective volume of the mixing tank, and overloading is strictly prohibited to avoid burning the motor or damaging the reducer and other components.

5. If the equipment is not used for a long time, it should be cleaned completely, lubricating oil everywhere and cut off the power supply.

If you have any questions or inquiry,please feef free to contact us:

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