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Hose pump for conveying fluorine rubber raw materials
date: 2022-08-24
According to the characteristics of the adhesive, the hose pump is used to transport the fluorine rubber raw material, which can solve the problems of high viscosity of the transport medium and difficult cleaning after curing.

The hose pump used for conveying fluorine rubber raw material has the following characteristics:
(1) It can transport high-concentration and high-viscosity liquids. The concentration of the conveying medium can be greater than 70%. Generally speaking, the specific gravity limit of the medium that the centrifugal pump can handle is 2.6kg/cm3, while the hose pump can handle the medium with a maximum specific gravity of 4.3kg/cm3; the maximum dynamic viscosity of the liquid can be Up to 20000mPa·s, the smooth hose cavity conveys the medium without any blockage.

(2) Precise measurement and easy adjustment. Its flow accuracy error can be less than ± 1%, and will not be affected by changes in the viscosity of the medium. At the same time, it can be easily adjusted according to the required flow, with stable performance and stable operation.

(3) It is well sealed and there is no external leakage. The flow channel of the pump is straight, without vanes, valves, etc., so it can be used to transport easily blocked fluids. The non-sealed structure not only simplifies the structure, but also avoids leakage, which is very important in occasions with high environmental protection requirements.

(4) The hose pump is simple in structure, low in failure rate and durable. Since the pump body and the running part are not in contact with the conveying medium, only the hose is in contact with the conveying medium, and no other parts are worn, which overcomes the shortcoming that the general pump parts wear too quickly. The wearing parts are only hoses, no other daily maintenance is required, and there will be no failures such as shaft seals and bearings.

(5) The flow and power are adjustable to save energy consumption.

hose pump for conveying fluorine rubber

The following factors need to be considered when selecting a hose pump for conveying viton raw materials:
1. Factors Affecting Stress
(1) Medium viscosity
The viscosity of the medium reflects the internal friction of the liquid when the liquid flows, and it constitutes the vast majority of the liquid delivery resistance, which directly affects the delivery pressure and power of the pump. The dynamic viscosity of epoxy resin adhesives is in the range of about 2000-5000 mPa·s.
(2) Medium working temperature
The working temperature of the medium will affect the viscosity of the medium and thus the delivery pressure of the pump. The working temperature of the louver abrasive cloth wheel is close to room temperature, about 10 ° C ~ 40 ° C, and has little effect on the viscosity of the medium.
(3) Length of delivery pipe
When the adhesive is transported, there will be friction between the medium and the pipe wall, forming a flow resistance, resulting in pressure loss (pressure loss along the way), and the pressure loss is proportional to the length of the pipe. Considering the arrangement space of the equipment, the length of the conveying pipe (including the inlet pipe and the outlet pipe) is about 3500-4500mm.

2. Factors Affecting Traffic
(1) The amount of glue used for a single louver abrasive cloth wheel
The number of abrasive cloth pieces of a single louver abrasive cloth wheel varies from 40 to 72 pieces according to different specifications, and the amount of glue used is in the range of 40-60mL/piece.
(2) Automatic production rhythm
The hose pump is used to transport the adhesive in the automatic gluing equipment of the louver emery cloth wheel, and the production rhythm directly affects the flow rate of the pump. The production rhythm of the automatic production equipment for the louver abrasive cloth wheel is about 2 to 4 pieces per minute.

3. Other factors
(1) Chemical properties of the medium
The chemical properties of the medium determine its corrosiveness to the pump body and delivery pipe, thus affecting the material of the pump body and hose. Epoxy resin adhesives belong to organic substances, which are not corrosive and do not contain abrasive substances. Ordinary silicone tubes are used, which have low cost, soft material and low power consumption.
(2) Solid content in the conveying medium
After the fluorine rubber raw materials are mixed, the medium does not contain solids, and it will not be cured during normal operation, so it does not affect the selection of pumps and conveying pipes.

After the above factors are considered, the model of the pump, the diameter and material of the conveying pipe matched with the pump can be selected according to the calculated pressure, flow rate and conveying medium, and the power and speed regulation range of the motor can be determined at the same time.

hose pump for conveying fluorine rubber raw materials

The hose pump is used for conveying fluorine rubber raw materials, which can solve the problems of high viscosity of conveying medium and difficult cleaning after curing. It has accurate measurement, convenient adjustment, and simple daily maintenance. It is a good equipment for conveying high viscosity and easy-curing liquids. .


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