Study on filter screen of mine mechanical pump

Filter screen for mine mechanical pump

• Because there is negative pressure at the water inlet inside the filter screen, the water outside the filter screen must pass through the shell gap at the Mitsubishi column.
• The kinetic energy of water will make the Mitsubishi column rotate. The outline diameter of the Mitsubishi column varies according to the size of the water inlet pipe and the matrix distribution in the shell. The lower end of the Mitsubishi column is mechanically connected with the lower end of the shell and can rotate around the circular hole at the lower end of the shell. The upper end of the Mitsubishi column is meshed with a pinion to realize transmission. The part of the Mitsubishi column with gear is in the sealing box, The other parts are in the shell and sealed with small sealed bearings inside and outside the box. The directional rotation characteristics of Mitsubishi column can improve the stability.
• The outer teeth of the intermediate gear mesh with the pinion of the Mitsubishi column, the inner teeth mesh with the pinion of the micro motor, and the inner ring is connected with the metal pipe to drive to the metal short pipe with the scraper rod.
• The outer teeth of the intermediate gear mesh with the pinion of the Mitsubishi column, the inner teeth mesh with the pinion of the micro motor, and the inner ring is connected with the metal pipe to drive to the metal short pipe with the scraper rod.
• Through the sealing function of the sealing bearing, the sealing performance of the sealing box is ensured.
• The lower part of the metal short pipe is outside, the upper part is inside the sealing box, and the lower part near the edge is welded with the scraper rod to realize the outward force transmission of the big gear.
• The upper part of the scraper rod is welded with the metal short pipe, the lower part of the scraper rod is connected with the small cylinder at the bottom of the filter screen by pins, and the upper and lower parts are connected with the middle part by screws to scrape particles of different sizes.
• The whole inlet pipe passes through the sealing box, the joint is sealed by welding technology, and the end is welded with the upper part of the filter screen. The specific diameter is determined according to the size of the inlet pipe orifice. The scraper rod is spiral, so that the scraper rod generates pressure downward, which is conducive to scraping slag.
• The bottom of the filter screen determines whether to fix a small cylinder according to the type of water pump. For dry water pump, since no parts are installed at the bottom of the filter screen, a small cylinder at the bottom can make the scraper more stable, and the submersible pump with the bottom filter screen hole plays the same role.
• Only the middle filter mesh submersible pump, because the lower part of the filter screen needs to be installed with parts, it is not easy to install a small cylinder, which has little impact on the stability of the scraper rod. The upper diameter of the filter screen is larger than the lower diameter.
• The shell is key, and the gap and baffle appear alternately in the middle, which is conducive to the entry of water and the protection of directional Mitsubishi column. A large hole is reserved at the bottom, which is slightly larger than the diameter at the bottom of the filter screen, which is conducive to slag removal.
• The other part of the bottom supports the directional Mitsubishi column, which is connected with the directional Mitsubishi column by a pin.
• The upper part is a sealing box, and the bottom surface of the sealing box is welded with the large sealing bearing and the small sealing bearing; Directional Mitsubishi column gear, intermediate gear and micro motor are installed in the sealing box; The top surface of the sealing box is welded with the water pipe.

Filter screen installation

• The micro motor is used to start the whole small system, and the Mitsubishi column is impulsive by natural power, which saves electric energy.
• The front end separates solids and fibers from mine water, reducing reactive work.
• The front pipe end of the water pump is flexible, and the first separation technology is adopted to improve the pumping and drainage effect; The product system is simple and easy to understand, consumes less materials and is economical.

The device is installed at the water inlet end of the water pipe and mechanically connected with the water pipe, which is convenient for disassembly and assembly; When the water inlet pipe of the water pump is relatively long, the user can not start the micro motor, and the incoming line of the micro motor can be retracted and tied to the water inlet pipe; When the water inlet pipe of the pump is relatively short, the user can start the micro motor to make the system more stable; The charger of the micro motor is bound to the motor shell of the water pump, isolated from the outside with flameproof materials, and connected and cut off the power supply with flameproof switch.

For the submersible pump, the incoming line of the micro motor is bound to the main engine, tied to the incoming line of the main engine, and the switch is placed at the switch of the main engine. The material is the same as the above materials. The filter screen device is suitable for vertical placement and should not be placed upside down or collided.