Overview

The YZ new centrifugal slurry pump and sediment pump are the latest generation of pump products developed and produced by our company based on the latest research results in fluid mechanics at home and abroad: solid-liquid two-phase flow theory for impurity pumps.

Structural Features

The flow components of YZ slurry pump and sediment pump are made of advanced high chromium alloy wear-resistant materials in China. The unique single channel open or double channel impeller structure, combined with a reasonable volute shell, enables the pump to effectively transport medium liquids containing solid materials, long fibers, high viscosity, etc. And it has the advantages of high efficiency, good overcurrent, non clogging, and anti entanglement in use.

Based on the theory of SP and other slurry pumps and sediment pumps, our company's technical personnel have devoted themselves to researching and improving the shortcomings of traditional submersible pump bearings that are easily damaged by liquid entering the bearings. We have developed an advanced submersible slurry pump and sediment pump. The product's volume and weight have been optimized, making installation more convenient and flexible. After being launched on the market, its performance is reliable and stable, and it has been highly praised by users.

According to user needs, we have also developed various structures such as elongated and horizontal for this series of submersible slurry pumps and mud sand pumps. To meet the needs of the majority of users to the maximum extent possible.

Performance parameters of YZ submersible slurry pump（1）

Performance parameters of YZ submersible slurry pump（2）

Performance parameters of YZ submersible pump and WZ horizontal pump（3）

Assembly and disassembly of pumps

Install the bearings into the middle bearing seat and the bearing seat respectively, and apply grease; Install skeleton oil seals on the bearing seat, bearing cover A, and bearing cover B; Install a skeleton oil seal inside the shaft seal box of the pump cover; Install the static ring and skeleton oil seal on the mechanical seal seat. Pay attention to applying grease to all skeleton oil seals after installation to prevent dry friction.

1. Install bearing cover B onto the middle bearing seat, paying attention to aligning the oil groove with the oil seal of the middle bearing seat.

2. Install the bearing seat on the shaft, tighten the round nut, install the bearing end cover A, fit the short support bucket, install the motor bracket, and tighten the motor bracket, bearing seat, and short support bucket together with bolts. Install the key and pump coupling on the shaft.

3. Install a middle bearing seat on the other end of the short support bucket and the shaft; Install the mechanical seal dynamic ring on the shaft, make it tightly adhere to the inner ring of the bearing, and apply grease. Install the mechanical seal seat on the middle bearing seat and tighten it with bolts. Be careful when installing the mechanical seal, do not bump the end faces of the dynamic and static rings, and apply a layer of grease on both ends

4. Install the support tube. Tighten the short support bucket, middle bearing seat, and support bucket with bolts, and rotate the pump coupling by hand to ensure flexibility.

5. Install the shaft sleeve on the shaft, install the pump cover on the support bucket, and tighten it with bolts.

6. Install rubber pads and protective plates on the pump cover, install keys and impellers on the shaft, pay attention to inserting the keys into the grooves of the shaft sleeve, screw on the impeller nut, install the pump body and cage, tighten them with screws, and manually rotate the pump coupling without friction or jamming.

7. Install the key and motor coupling onto the motor shaft, place a rubber elastic block on the pump coupling, install the motor onto the motor bracket, and tighten it with bolts. There should be a 3-5mm gap between the two couplings.

8. The disassembly sequence is opposite to this

Product usage and maintenance

1. Check if the on-site power supply meets the requirements and if the grounding is reliable.

2. Check if all connecting components of the pump are securely fastened, and manually rotate the coupling to ensure there is no binding or rubbing.

3. After connecting the 380V power supply, test whether the rotation direction of the pump is consistent with the direction indicated on the label. If it is opposite, replace any two phase wire ends.

4. Before starting, the gate valve on the outlet pipeline should be closed. When the pump reaches normal speed, slowly open the gate valve on the outlet pipeline and adjust it to the required working condition.

5. After starting and during operation, observe for any noise or vibration. If the operation is abnormal, immediately stop the machine for inspection.

6. After 250 hours of continuous operation, the pump should be refilled with grease once through a grease gun.

7. When the power supply voltage is higher or lower than 10%, the operation should be paused to avoid burning out the motor.

8. When working continuously for a long time, vulnerable parts should be replaced in a timely manner to ensure the normal operation of the pump.

9. When the pump is used to extract media such as sediment, slag, coal slurry, etc., if it is temporarily stopped for a few days, the water slurry pump can be filled and cleaned to avoid difficulties in starting again after sedimentation; If not in use for a long time, the pump should be disassembled to remove dirt from the parts, coated with rust proof grease, reassembled and stored.

Common faults and troubleshooting

Measure the voltage and current of the power grid