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Henan Coal Science Research Institute Keming Mechanical And Electrical Equipment Co., Ltd. News

Industrial Hose Pump Applicable Industries

The industrial hose pump utilizes a high-quality gear reduction motor, providing powerful power and exceptionally quiet operation. The pump body is sand-molded, with the cavity precisely machined. The internal rotor utilizes a rolling roller system, and the pump cavity is filled with softening fluid...

August 11, 2025
hose pump working principle

KEMING industrial hose pump is composed of pump head, pump shell, squeeze roller, recovery roller, squeeze hose, and driving system. Squeeze roller makes planetary motion along the U shape squeeze hose. When the squeeze roller runs, squeeze hose gets elastic deformation because of extruded force. ...

August 5, 2025
PZ Series Shotcrete Machine

The PZ concrete spraying machine uses compressed air to transport concrete mixture or similar loose materials with particles in a certain ratio through a pipeline, and then controls the addition of water and mixing at the port, and then sprays it at high speed onto the sprayed surface to solidify ...

July 16, 2025
The Grouting Mixer Machine

The grouting mixer machine is mainly used to mix cement slurry and other similar slurries that need to be mixed vigorously in advance. It is used in conjunction with the grouting machine for pressure grouting construction in railway and highway construction, mining, hydropower engineering, thermal ...

July 16, 2025
Mortar Pump Introduction

The mortar pump is a single-cylinder single-acting piston mortar delivery pump with the advantages of compact structure, reliable operation, low failure rate, easy cleaning and maintenance, and high pumping pressure. It is mainly used for mortar delivery and injection in tunnel excavation and ...

July 16, 2025
Shotcrete machine maintenance

Shotcrete machine maintenance: 1. After finishing the spraying operation every day, daily maintenance must be carried out.2. Check for water leakage, oil leakage, and electric leakage. If there is any leakage, eliminate it in time.3. Check whether the oil (diesel, oil, engine oil), water volume, and ...

July 14, 2025
Causes of burnout of the motor of the mine spraying machine

Causes of burnout of the motor of the mine spraying machine: 1. Overload. If the protection function is normal (installed thermal relay), it will not happen generally.2. Internal reasons of the motor of the mine spraying machine, due to bearing damage, wear of the end cover, wear of the main shaft, ...

July 14, 2025
What preparation should we do before start the shotcrete machine operation ?

Preparation before starting: A. Check whether the contactors of the electric control system are fastened and whether electrical leakage occurs. B. Check the oil gauge, and ensure the lubricant is sufficient in the reducer. C. Check whether the connection and joints of various parts are reliable. D. ...

June 25, 2025
Shotcrete Machine maintenance

Shotcrete Machine is widely applied to harsh construction sites. However, routine maintenance is needed like other rotor type spraying machine. 1. The sealing plate and the steel liner plate are key parts of this machine. Please pay much attention to the maintenance for fear of failure in operation. ...

June 25, 2025
how to solve too much springback ?

Too much springback: The reason: 1.Improper aggregate grading curve 2.Spray distance is too short from the nozzle to working surface 3.Spray distance is too long from the nozzle to working surface 4.Spray direction is not vertical (90°) to working surface How to solve: 1.Check the material grade and ...

June 25, 2025
what should we do when the shotcrete machine spraying capacity becomes poor ?

Machine spraying capacity becomes poor: The reason: 1.Rotor chambers and outlet elbow become smaller due to blockage 2.Wrong installation of air valve (excessive depressurization) 3.Charging hopper is not fully filled. How to solve: 1.Refer to treatment of blockage above. 2.Reduce the loss of ...

June 25, 2025
the solving of shotcrete machine or conveying pipes blocked

Blockage in rotor, outlet elbow, or conveying pipe: The reason: Aggregate size is too large: How to solve: If the conveying pipe is blocked, stop the machine first. Next, turn off air valves and remove the elbow from the hose. Open the air valves and blow out the remaining mixture inside the rotor. ...

June 25, 2025
how to solve the problem of shotcrete machine air motor not run

Air motor of shotcrete machine does not run: The reason: 1. Inadequate supply of compressed air 2. Over load 3. Inadequate lubrication, causing overheating expansion 4. Internal parts get worn or ruptured How to solve: 1. Confirm the supplied air of compressed air 2. Confirm its load 3. Confirm the ...

June 25, 2025
KPZ shotcrete machine principle

Mixed concrete is fed from the agitator discharging outlet (or manual mixing and feeding) through the vibrating screen to the machine’s charging hopper. Then, concrete mix is moved by a poker to rotor through chamber, and transferred to discharging outlet along with the movement of rotor, where ...

June 25, 2025
Contents and quality inspection methods of high-pressure jet grouting pile inspection

Contents and quality inspection methods of high-pressure jet grouting pile inspection 1. The types, specifications and quality of cement and admixtures used for high-pressure jet grouting should meet the design requirements. Inspection quantity: Cement and admixtures of the same origin, type, ...

June 16, 2025
Working steps of jet grouting piles

Working steps of jet grouting piles Jet grouting piles are a common foundation treatment method. The following are the working steps of jet grouting piles: 1. Due to the cutting and replacement of high-pressure air and high-pressure water, a large amount of cement soil slurry will be produced in ...

June 16, 2025

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