How to Maintain and Repair of Multi-purpose DS Sand Suction Pump

DS sand suction pump is the kind of heavy duty sand pumping machine designed by OCEAN Pump to provide continuous transport of highly abrasive sand or slurries containing large particles with high flow, excellent efficiency, low maintenance and ownership costs.
Mr. Huang has a sand field, he want to use small stone and gravel to make sand, because the government has strict control over the river sand pumping. The sand produced during the stone and gravel crushing process contains more mud, and a large amount of muddy water is generated during the cleaning process. It is necessary to solidify the mud into a mud block by a filter press to facilitate handling. Because the pressure required for the feed is large, so Mr. Huang purchased two multi-purpose DS sand suction pump for the filter press from OCEAN Pump.

Troubleshooting of Multi-purpose DS Sand Suction Pump

The multi-purpose DS sand suction pump was installed on site and the effect was good. The mud began to form in about 10 minutes. After using for a period of time, the on-site master reflected the abnormal noise of the bearing, the pressure at the inlet was reduced, and the discharge time was extended. After receiving feedback from the on-site staff, OCEAN Pump arranged engineers to go to the site to repair the DS sand suction pump. Upon arrival at the scene, our staff conducted an overhaul of the following problems.

1. The multi-purpose DS sand suction pump was not on the horizontal line with the pulley of the motor, and the distance of the motor end pulley protruded outward by half of the sheave. At the same time, the DS sand suction pump bearing chamber had abnormal noise. The engineers guessed that the bearing might be damaged due to the force deviation caused by long-term disagreement.
2. The pressure at the feed port was reduced, indicating that the lift of the DS sand suction pump was reduced. The motor used in the field is the second-hand motor purchased by the customer. Our engineers used the speed measuring instrument to detect the lower motor speed. The rated speed of the 4-pole motor is 1470 rpm, but the display was only about 1300 rpm. The motor speed was low, so that the speed transmitted to the DS sand suction pump was not up to the rated speed, so the engineers recommended to increase the motor pulley by one specification. The original motor pulley was a C-type 4 slot with an outer diameter of 240 mm. The engineers recommended to use a pulley with an outer diameter of 260 mm.
3. The engineers checked the installation pipeline of the DS sand suction pump and found that the inlet pipe was only fitted on the joint, no fastening with clips. This method could easily lead to air intake of sand pump. At the same time, the packing had not been replaced for a long time, and there was a phenomenon of mud leakage. Various reasons caused the air intake of the sand suction pump, and the pressure did not meet the requirements. After finding the causes, the engineers began to transform the unreasonable places.
   
   
   
   
   
   
   

How to maintain and repair the Multi-purpose DS Sand Suction Pump

1. After OCEAN Pump engineers disassembled the bearing chamber of the multi-purpose DS sand suction pump, it was found that the balls of one bearing were damaged. Therefore, according to the model requirements, the on-site worker went out to buy.
2. At the same time, the engineers replaced the pulley with the outer diameter of 260 mm.
3. Reinforce the pipe at the entrance, and seal the interface with a film of grease to prevent air intake.
4. Because the engineers brought a box of packing in advance, they directly replaced the packing that has been worn out.

After all faults have been eliminated, our engineers installed the DS sand suction pump body and started up. There was no mud leakage at the place of the packing, and no abnormal noise in the bearing chamber. The slurry in the tank was quickly pumped into the filter press, and the effect was very obvious. During the maintenance process, our engineers patiently explained to the field staff the steps of replacing the parts and the methods for solving the problems, to ensure that the construction workers in the future work, such as replacing the packing and reinforcing the imported pipes, could handle the problems by themselves.

About OCEAN Pump

Tai’an OCEAN Pump (OCEAN Pump) Co., Ltd. is the leading sand pump machine and sand dredger manufacturer, supplier and exporter in China. We have more than 30 talented sand pump experts and 15,000 square meters factory. More than 4 series 20 kinds of sand pumps, slurry pumps, sand dredgers and related parts had been manufactured to satisfy your pumping requirements. OCEAN Pump is the Certification of New Hi-tech Enterprises by the Government. We provide our customers with a complete set of  sand, slurry, gravel pumping solutions and related parts. Our main products include centrifugal portable sand pump, marine sand pump, slurry pump, dredge pump, gravel pump, mud pump, submersible slurry pump, vertical sand pump, simple small sand pump dredger, submersible dredger, mini dredge for sale,  small dredging equipment,small pond dredging equipment, sand suction dredger,  suction dredging equipment, cutter suction dredger , sewage submersible pump, lake dredging equipment, mini dredges for sale, sand dredging machine, river dredging equipment and other parts like discharging sand pipe, floater, rubber hose. They are widely used in mining, metallurgy, coal washing, power plants, sewage water treatment and dredging in such industries as mine, chemical and petroleum. We are looking for pump dealers all over the world.