Industrial hose pump peristaltic pump

The peristaltic pump series of industrial hose pumps (commonly known as supply pumps, high viscosity pumps, desulfurization pumps, etc.) is a new, multifunctional, and multi-purpose industrial pump that has absorbed technology. It breaks away from the traditional operation mode of pump impellers and shaft seals, and has great advantages in conveying media with high viscosity, corrosiveness, and fluid impurities. It uses a completely different principle from traditional conveying pumps and has a wide range of applications.

Pumps are divided into vertical pumps and horizontal pumps according to their structural forms.

Pumps are divided into single tube pumps and double tube pumps according to the form of hoses.

Pumps are divided into open pumps, semi sealed pumps, and fully sealed pumps according to their sealing forms.

Characteristics and Applications:

1. The unsealed structure prevents any leakage;

2. Self suction, with a water suction range of up to 8 meters;

3. The fluid pumped only comes into contact with the hose, so it can transport various viscosity, density, corrosive, and abrasive fluid materials;

4. Able to transport liquid materials containing solid particles, crystals, fibrous substances, and other impurities without any blockage or malfunction;

5. It can operate in both forward and reverse directions and has self-cleaning ability;

6. Pump start-up does not require pumping, making it particularly convenient for gap operation;

7. Low vibration and noise, can be fixed on a small cart for mobile operation;

8. Simple structure, easy operation and maintenance;

9. Low power consumption, volume, and good measuring ability.

Application:

1. Chemical industry: acid, alkali, phosphate slurry, and inorganic salt materials such as titanium dioxide;

2. Petrochemical industry: drilling mud and its transportation;

3. Water treatment: transportation of sludge slurry, lime slurry, etc;

4. Mining and metallurgical industries: transportation of filling materials in gold mining and slurry in gold smelting processes;

5. Pharmaceutical industry: transportation of various drug materials and liquids;

6. Food industry: transportation of oil materials and beverages;

7. Paper industry: pulp and sulfur pulp transportation;

8. Construction industry: cement mortar transportation;

9. Ceramic industry: transportation of ceramic glaze slurry, etc;

10. Transportation of nuclear waste, electrolytic waste, metal slag liquid, paint, coatings, adhesives, glue, latex, refractory fiber slurry, and other liquids with high sealing requirements, high viscosity, and high particle content.

Working Principle:

A rubber hose with smooth and strong inner wall is installed inside the pump, and is rotated and squeezed along the hose by a pair of pressure rollers. This rotation causes the medium to be conveyed in one direction without backflow. After conveying the medium, the hose is restored to its original state by the elasticity of the flattened hose and the strength of the side guide rollers. At this time, a high vacuum is generated inside the hose to suck the material into the tube cavity; Then, the material is discharged from the hose under the pressure of the accompanying roller. This cycle repeats itself, with materials constantly being sucked in and discharged.

The hose has the characteristics of long service life and wide applicability. Its structure is a synthetic fiber woven layer reinforced with one or more layers. The inner and outer liners of the hose are extruded, and the inner liner is made of a series of composite rubber. The tube body is soft, highly elastic, and has superior performance. Adding synthetic fibers to the tube enhances its overall performance. Low heat generation and good elasticity recovery during use,. Rubber hoses have good resistance to positive and negative pressure, as well as acid, alkali, oil, high temperature and other characteristics, and can transport more than 90% of chemicals today. The main ingredients include rubber (resistant to general weak acids and alcohol), butyl rubber (resistant to grease, alkali metals, and cleaning agents, etc.), and EPDM rubber (suitable for ketones, alcohol, and concentrated acids). The usage temperature of the hose is ≤ 100 ℃. Considering the heat generated during the production process, it is generally used in working conditions where the medium temperature is<80 ℃. If the ventilation (or cooling) and heat dissipation conditions are good, the medium temperature can reach 100 ℃. If the material temperature is greater than 100 ℃, heat-resistant hoses should be selected. Sanitary grade hoses can be used for transporting sanitary grade media such as food, medicine, etc. Non standard design can also be carried out according to user needs.

Instructions for Use:

1、 Applicable conditions

1. The hose pump belongs to the positive displacement peristaltic pump, and its flow rate is determined by the output speed of the driving device. Due to the limitations of the pump's structure and materials, the speed is not easy to be too high, and its high speed should be less than 50 revolutions per minute.

2. When the process is continuous operation, the actual flow rate should match the rated flow rate of the pump. If stable operation is required and the flow rate requirements are variable, it is better to choose a variable speed pump, and the large flow rate should not exceed the rated flow rate of the pump.

3. When the process is a gap operation and there is no quantitative requirement, the rated flow rate of the pump can be greater than the actual required flow rate. If there is a quantitative requirement, the rated flow rate of the pump should be basically consistent with the actual flow rate. If the actual flow rate of the pump is greater than the required flow rate, a bypass pipe can be added for adjustment.

4. The rated pressure of a pump refers to the working pressure of the pump under a certain power motor configuration. The actual working pressure of a pump is determined by the pipeline resistance loss and lifting height of the system in which the pump is located. Therefore, in operation, the actual working pressure of the system should be greater than the rated pressure of the pump.

5. The operating temperature of ordinary hoses is ≤ 100 ℃. Considering the heat generated by moving parts during operation, it is generally used for working conditions where the material temperature is ≤ 80 ℃; If the ventilation (or cooling) and heat dissipation conditions are good, the material temperature is allowed to reach 100 ℃. If the material temperature is greater than 100 ℃, heat-resistant rubber hoses should be selected.

6. Due to the peristaltic nature of the pump, it exhibits pulsation during material transportation.

7. This pump allows for short-term idle operation.

2、 Installation and piping

1. The pump should be placed steadily to reduce vibration and noise.

2. There should be a flexible or rigid short section (about 80-100 centimeters) between the outlet flange of the pump and the pipeline connection to facilitate hose replacement.

3. When starting the pump, there is no need to pump, therefore, the installation height of the pump can be above the material level, and no auxiliary pipelines or starting facilities are required, but the height difference should not exceed 5 meters.

4. In situations where the conveying medium has high viscosity, many particles, is prone to sedimentation, and has poor fluidity, pumps are generally installed below the material.

5. When using this pump in piping, attention should be paid to minimizing bends (especially right angle bends) as much as possible. In general, the outlet diameter should be equivalent to the diameter of the hose pump, for materials with long pipelines, high viscosity, and poor fluidity. The outlet diameter should be 1.2-1.3 times the diameter of the pump hose.

6. Check valves are not allowed to be installed at the inlet and outlet of the pump.

7. The outlet of the pump should be equipped with a pressure gauge to monitor the operation of the pump.

8. The inlet and outlet of the pump are in the same direction as the pump, and the inlet and outlet of the pump are interchangeable, which is determined by the user according to the piping and actual situation.

9. Electrical installation should be equipped with forward and reverse buttons for use during maintenance, pipe replacement, and self-cleaning.

3、 Usage and maintenance

1. Replacement and adjustment of hoses

(1) When replacing the hose, first loosen the bolts on both ends of the pipe clamp and remove the pipe clamp. Then loosen the hanging ring bolt on one end, pull out the short pipe from the hose, jog the motor, and install the hose; Then fix the suspension ring and install the pipe clamp, and the replacement task is completed. Attention: When installing the hose, be sure to tightly adhere it to the pump casing and confirm before putting it into normal operation.

(2) After about 200 hours of use, the hose can be rotated 90 degrees. For a single tube hose pump, in addition to the direction of rotation, the hose can also be pulled back and forth to change the pressure point of the hose and extend its service life.

2. When the adjustment pump for the pressure roller leaves the factory, the pressure roller has been adjusted in place according to normal conditions. If the material cannot be sucked up or the flow rate does not meet the requirements under the rated pressure of the pump, please adjust the eccentricity of the pressure roller. The steps are as follows: first open the corresponding circular glass cover plates on both sides of the pump casing and the rectangular glass cover plate at the pump outlet, rotate the rotor pressure roller between the two circular holes, with the bolts facing the circular holes, and then use a socket wrench to loosen the bolts at both ends. Then use a small round rod or cross screwdriver to align with the circular holes, and rotate the eccentric sleeve on one side of the pressure roller. The smaller the distance between the pressure roller and the pump casing, the tighter the hose is pressed, and vice versa. Attention: When adjusting the gap, do not press too tightly to achieve the rated flow rate. The tighter the pressure, the greater the impact on the service life of the hose.

3. Lubrication and maintenance

(1) The side guide roller should be regularly lubricated by injecting oil (brand: high-temperature lithium grease GB5671-91) from the oil injection hole with an oil gun. Attention: When injecting oil, check the tightness of the side guide roller. If it is found to be too loose, use pointed nose pliers to tighten it. If abnormal noise is found in the side guide roller, adjust the tightness but still cannot. Consider the wear of the copper sleeve inside the side guide roller, and remove it to replace the copper sleeve or replace the side guide roller.

(2) The rotor bearings should be lubricated with grease (grade: high-temperature lithium grease GB5671-91) every six months.

(3) After running the new gearbox for a period of time, drain the oil from the tank and refill it with 30 # engine oil. 4. The use and protection of hoses. The storage period of hoses should not be too long, generally limited to one year. For pumps equipped with hoses, if not in use for a long time, rotate the pump at least once every month.