1. Product introduction

UHB-ZK corrosion resistant and wear-resistant mortar pump is a cantilever single-stage single suction centrifugal pump designed and developed for conveying corrosive media containing fine particles. The pump is made of steel lined ultra-high molecular weight polyethylene (UHMW-PE), which is the latest generation of corrosion resistant and wear-resistant engineering plastics for pumps. Its most outstanding advantage is that it has the best abrasion resistance and impact resistance (especially low temperature impact resistance) among all plastics Creep resistance (resistance to environmental stress cracking) and excellent corrosion resistance.

2. Product pictures

3. Scope of application

(1) UHB-ZK anti-corrosion and abrasive resistant slurry pump is used for the transportation of dilute acid, mother liquor, sewage, seawater, silicofluoric acid containing silica gel, phosphoric acid slurry and other media in the sulfuric acid and phosphorus fertilizer industry.

(2) UHB-ZK corrosion-resistant and abrasive resistant slurry pump is used in the non-ferrous metal smelting industry: it is especially suitable for the transmission of various acid solutions, corrosive slurry, slurry (matched with filter press) electrolyte, sewage and other media for hydrometallurgy of lead, zinc, gold, silver, copper, manganese, cobalt, rare earth, etc.

(3) UHB-ZK corrosion-resistant and wear-resistant mortar pump is used in chemical and other enterprises: various sulfuric acid, hydrochloric acid, alkaline, oil clear liquid or slurry posts. Production of titanium dioxide and iron red powder, production of various dyes and pigments, non-metallic mineral processing and other industries.

(4) UHB-ZK corrosion-resistant and abrasive resistant slurry pump is used in chlor alkali industry: hydrochloric acid, liquid alkali, electrolyte, etc.

(5) UHB-ZK anti-corrosion and abrasive resistant slurry pump is used in the water treatment industry: pure water, high-purity water, sewage (leather sewage, electroplating sewage, electronic sewage, papermaking sewage, textile sewage, food sewage, domestic sewage, pharmaceutical sewage, etc.).

(6) UHB-ZK anti-corrosion and abrasive resistant slurry pump is used in iron and steel enterprises: sulfuric acid and hydrochloric acid posts of pickling system, sewage with impurities.

(7) UHB-ZK corrosion-resistant and abrasive resistant slurry pump is used for wet desulfurization circulating pump: it can also be used for alkaline, acidic and corrosive posts.

(8) UHB-ZK corrosion-resistant abrasive slurry pump is used to transport corrosive liquid and coal slurry in coal industry and coal chemical industry; Pumps are used for coal washing.

4. Product Features

(1) Strong abrasion resistance: all flow passage parts are made of steel lined UHMW-PE. The abrasion resistance of UHMW-PE ranks first among plastics, 4 times higher than nylon 66 (PA66) and polytetrafluoroethylene (PTFE), and 7-10 times higher than that of carbon steel and stainless steel.

(2) Strong impact resistance: The impact strength of UHMWPE ranks first in general engineering plastics, five times that of acrylonitrile/butadiene/styrene copolymer (ABS), and it can remain stable at minus 196 ℃, which is a characteristic not found in any other plastics.

(3) Excellent corrosion resistance: the pump can withstand various corrosive media (acid, alkali, salt) and organic solvents within a certain temperature and concentration range, and immerse in 80 organic solvents at 20 ℃ and 90 ℃ for 30 days. There is no abnormal appearance, and other physical properties are almost unchanged.

(4) No noise: the impact energy absorption of UHMWPE is the highest in plastics, and the sound attenuation is good, thus minimizing the noise generated by liquid flow during the transportation process.

(5) Safe, reliable, toxin free decomposition: the pump uses ultra-high molecular weight polyethylene (UHMW-PE) with extremely stable chemical properties, so it is also suitable for use in the food industry.

(6) Low friction coefficient: the internal friction system of the pump is only 0.07-0.11, so it has self-lubricating property. Under the condition of water lubrication, its dynamic friction coefficient is half lower than PA66 and POM. When working in the form of sliding or rotating, the lubricating property is better than that of steel and brass after being lubricated.

(7) Good viscosity resistance: Ultra high molecular weight polyethylene (UHMW-PE) has excellent viscosity resistance, and its adhesion resistance is equivalent to that of PTFE, so it is also outstanding when transporting some media with high viscosity.

5. Model Meaning

6. Specifications

7. Installation method

(1) Before installation, check whether the fasteners of the unit are loose and whether the flow passage of the pump body is blocked by foreign matters, so as to avoid damage to the impeller and pump body during the operation of the pump.

(2) During installation, the pipe weight shall not be added to the pump to avoid deformation of the pump.

(3) The foundation bolts must be tightened during installation to avoid the impact of vibration on pump performance during startup.

(4) For the convenience of maintenance and safety of use, a regulating valve is installed on the inlet and outlet pipelines of the pump and a pressure gauge is installed near the pump outlet to ensure the operation within the rated head and flow range, ensure the normal operation of the pump and increase the service life of the pump.

(5) After installation, move the motor sealing blade, and the impeller shall be free of friction sound or seizure, otherwise, the pump shall be disassembled to check the cause.

8. Precautions

(1) The lubricating oil in the bearing pedestal shall be replaced regularly, and it shall be replaced once every six months under normal conditions.

(2) In cold seasons, if there is ice formation after the pump is stopped, the cooling water at the seal shall be connected first, and if necessary, the water can be heated to thaw, then the coupling shall be turned by hand until the operation is flexible, and then the machine shall be started according to the starting steps.

(3) For the pump with cooling water device, the cooling water shall be connected before starting. When the pump is in normal operation, it can be connected continuously. If conditions do not permit, it can also be stopped. There is no requirement for the flow and pressure of cooling water, so tap water can be used;

(4) The operation of the pump when the outlet valve is closed is called the closed pressure operation state. The closed pressure operation time of the full plastic pump or plastic lined pump should be shortened as much as possible. The normal temperature medium should not exceed 5 minutes, and the high temperature medium should not exceed 2 minutes;

(5) For the pumps with the center opening casing, such as the imported pump with the diameter of more than 50mm, the sealing plastic at the center opening has some changes due to thermal expansion and cold contraction. During installation, the connecting bolts at the center opening should be checked and tightened first, and then the inlet pipeline should be connected to prevent the leakage of the center opening, which is particularly important for users in the north;

(6) The pump cannot bear the weight of the inlet and outlet pipes. The shorter the inlet pipe is, the better. The vertical distance from the pump outlet to the valve should be as short as possible;

(7) Ensure that there is no water trace on the motor to prevent the motor from being damped.

9. Frequently Asked Questions

(1) If the water pump fails to discharge, it may be that the suction pipe leaks or the suction pipe is too high

(2) The insufficient flow of the water pump may be caused by the blockage of the water pump, wear of the impeller, insufficient speed, etc.

(3) Excessive pump power may be used beyond the rated flow.

(4) Noise and vibration may be caused by unstable pipeline support, gas mixed with liquid, bearing damage, etc.

10. Need to know

(1) Preparation before operation:

Before commissioning, turn the coupling or shaft manually to check whether the steering is correct and the operation is flexible. If the coupling does not move or there is abnormal noise, check whether the coupling is horizontal from the outside by hand. Check whether the lubricating oil position is near the centerline of the oil mirror from the oil mirror hole on the bearing seat (too much should be removed, too little should be added). Check while turning. If the problem still exists, It is necessary to disassemble the pump for inspection (please refer to the structure diagram and disassembly procedure in this manual when disassembling the pump). Clean up the foreign matters and contact our factory for solutions.

(2) Start up steps:

a. Fill the pump with liquid

b. Open the inlet valve in time (if the inlet and outlet valves are one-way check valves, manual operation is not required)

c. Power on

d. Open the outlet valve

(3) Run:

In case of abnormal sound or motor heating during operation, the machine shall also be stopped for inspection. The inspection method and steps are the same as those in 1.

(4) Shutdown steps:

a. Close the valve at the outlet first

b. Cut off the power supply and timely close the valve at the inlet; (If the inlet valve is a one-way check valve, manual operation is not required)