Dongda brand QYF25-20 pneumatic desilting and sewage pump for coal mines with preferential quotation

Dongda brand
-Pneumatic dredging and sewage pumps for coal mines
Preferential quotations
Jining Dongda produces various types of pneumatic dredging and sewage pumps for mining at preferential prices Call to inquire about mining pneumatic dredging and sewage pumps - pneumatic dredging and sewage pumps - pneumatic dredging and sewage pumps - pneumatic dredging and sewage pumps - pneumatic dredging and sewage pumps - pneumatic dredging and sewage pumps Jining Dongda Mechanical and Electrical Co., Ltd. produces series of mines The pneumatic dredging and sewage pump has a coal safety certificate which can be checked on the coal safety website and has applied for a patent (.). Sales hotline:
The series of mining pneumatic desilting and sewage pumps are powered by compressed air and are suitable for underground mining working surfaces, roadways, bottom sewage dens, sewage pits (wells), and water silos in coal mines that contain dangerous methane and coal dust. Waiting for drainage and sewage operations.
Mining pneumatic dredging and sewage pumps and dredging and sewage pumps should be able to work normally under the following environmental conditions:
) The length of the suction pipe of the dredging and sewage pump should not be submerged underwater.
b) The temperature of the conveying medium does not exceed ℃.
) Working environment temperature (~)℃.
) The conveying medium is within the range of ~.
) The major diameter of solid-containing particles does not exceed.
) Applicable air pressure range.~.
The intelligent, high-efficiency and energy-saving mining pneumatic dredging and sewage pump is a series of sewage equipment products independently innovated and independently developed by Shandong Mining Safety Company with independent intellectual property rights. The technology is at the internationally advanced level.
Dongda brand
-Pneumatic dredging and sewage pump for coal mines
Preferential quotation
Pneumatic dredging and sewage pump for mining-Pneumatic dredging and sewage pump product structure and working principle
The main components of the series of mine pneumatic desilting and sewage pumps include the main body, control system and vacuum suction components, etc. See the structure diagram.
. Main part: It consists of a pump body, a feed pipe, and a discharge pipe. Its job is to suck and discharge materials.
. Control system: The control system mainly uses the organic combination of pneumatic reversing valves, travel switches, shuttle valves, ball valves and time logic reversing valves to achieve the control and switching of the actuator to achieve the unit's working time. Orderly switching between suction and discharge;
. Vacuum suction assembly: The vacuum suction assembly is mainly composed of a Laval nozzle that first shrinks and then expands, a negative pressure chamber and an expansion tube. It is designed based on the principle of Venturi effect and includes air supply port, exhaust port and vacuum port. When the air supply pressure at the air supply port is higher than a certain value, the nozzle emits a supersonic jet. Due to the viscosity of the gas, the high-speed jet sucks away the gas in the negative pressure chamber, causing the chamber to form a higher degree of vacuum. The performance of the vacuum generator is related to many factors such as the small diameter of the nozzle, the shape, diameter and relative position of the contraction and diffusion tubes, and the pressure of the air source. The vacuum suction component is connected to the suction port through the pump body. When the control system switches the control cylinder in cycles, the suction and discharge process of the unit can be completed.
Contact person: Xiao Zhao of Dongda Group
Contact number
Jining Dongda Mechanical and Electrical Co., Ltd.
Dongda brand
-Pneumatic dredging and sewage pump for coal mines
Preferential quotation