65ZJ-I-A30 slurry pump

Overview of ZJ centrifugal slurry pump:

The ZJ series slurry pump is a new type of high-efficiency, energy-saving, and wear-resistant pump. This series of pumps comprehensively applies the advantages of similar products at home and abroad in hydraulic design, structural design, and wear-resistant materials used, and innovates. It has the characteristics of high efficiency, energy saving, low vibration, low noise, reliable operation, long service life, and easy maintenance. The comprehensive performance of the pumps ranks high in China, and the efficiency indicators of most pumps are at the same level. It can be widely used in industries such as power, metallurgy, coal, and building materials to transport slurries containing solid particles. Such as hydraulic ash removal in power plants, slurry transportation in metallurgical beneficiation plants, coal slurry and heavy medium transportation in coal washing plants, etc. The maximum allowable slurry weight concentration Cw for transportation is 45% for ash (slag) slurry and coal slurry; 60% slurry and heavy medium.

Types, structural characteristics, and models of slurry pumps

The types of ZJ series slurry pumps are divided into two categories. One is the ZJ type, which is a horizontal axial suction single-stage single suction pump

Centrifugal slurry pump; The other type is the ZJL type, which is a vertical axial suction single-stage single suction centrifugal slurry pump.

1. Structural characteristics and models of ZJ slurry pump

(1) Structural characteristics of staring slurry pump

① Pump head section

The pump head of ZJ slurry pump includes pump casing, impeller, and shaft seal device. The pump head and bracket are bolted together

Conclusion. According to the needs, the outlet position of the pump can be installed and used by rotating eight different angles at intervals of 450.

The pump casing of ZJ slurry pump is a double-layer shell structure. The outer layer is a metal pump casing (front pump casing, rear pump casing)

The shell is usually made of HT200 or QT500-7 materials; The inner shell can be made of high chromium alloy cast iron (package)

Including vortex shell, front guard plate, rear guard plate), or made of rubber (including front vortex shell, rear disaster shell).

Lifting, installation, and trial operation of the pump

1. Lifting

When lifting pumps with packaging boxes, steel wire ropes should be tied according to the markings on the packaging boxes. When lifting, do not use the container

The bottom or side of the packaging box shall not be excessively tilted due to impact or severe vibration, and the packaging box shall not be placed on sharp edges

On objects, they must not be inverted.

Lift pumps without packaging boxes according to the following requirements.

(1) When lifting a horizontal pump without a base or with only a separate base, the lifting center of gravity should be at the square hole on the side of the bracket near the pump head, and the steel wire rope should be connected to the lifting hook vertically upwards through this point. To maintain the balance of the pump, an auxiliary lifting wire rope should be installed between the lifting ring screws on the pump casing and the lifting hook.The lifting ring screws on the bracket cover and the front and rear pump housings are designed for disassembling and assembling the bracket cover or front and rear pump housings, and should not be used separately for lifting the overall pump to avoid accidents.

2) The lifting belt motor and the horizontal pump with a common base have a lifting center of gravity near the coupling in the square hole of the bracket. The steel wire rope passes through this point and is vertically connected to the lifting hook. To maintain balance, it must also be placed in the pump casingAn auxiliary lifting wire rope is installed between the upper lifting ring screw, motor lifting ring screw, and lifting hook.

(3) Horizontal pump units with intermediate variable speed devices such as couplings should be lifted separately.

(4) The part where the steel wire rope comes into contact with the pump body should be cushioned with soft materials for protection to avoid damaging the appearance of the pump or causing steel damage

Cut the silk rope.

2. Installation

(1) Pre installation inspection

The pump has been inspected and tested before leaving the factory, and in order to ensure its good working condition, it must be installed correctly. Before installation, the model and parameters of the equipment should be checked according to the packing list to ensure they are correct, the components are complete and intact, and the accompanying technical data and quality certificates are complete. After verification, it should be read in detailRead relevant technical materials, especially the "ZJ series slurry pump user manual", master the relevant technical requirements and operating essentials before installation, and avoid blind operation.

Common fault handling

Possible faults and their troubleshooting methods

Daily maintenance of ZJ series slurry pump:

1) The water pressure and volume of the bearing should meet the regulations, and the tightness of the packing should be adjusted (or replaced) at any time to avoid causing leakage of the shaft seal. And replace the shaft sleeve in a timely manner.

2) When replacing bearings, it is important to ensure that the bearing components are dust-free and the lubricating oil is clean,Slurry pumpThe bearing temperature during operation is generally not more than 60-650C, and the maximum temperature should not exceed 750C

3) Ensure that the motor andSlurry pumpThe coaxiality ensures the integrity and correctness of the elastic pad in the coupling, and it should be replaced promptly if damaged.

4) GuaranteeSlurry pumpThe components and piping system are installed correctly, firmly and reliably

5）Slurry pumpSome of the components belong to vulnerable parts, and in daily use, attention should be paid to the wear and tear of vulnerable parts, and they should be repaired or replaced in a timely manner. dregsSlurry pumpDuring the process of repairing or replacing vulnerable parts, it is necessary to ensure correct assembly, reasonable gap adjustment, and avoid the occurrence of tight friction.

6）Slurry pumpThe suction pipeline system must be leak free, and attention should be paid to whether the suction inlet is blocked during operation.Slurry pumpThe medium that needs to be processed often contains solid particles, so the grille placed in the pump inlet should comply withSlurry pumpBy meeting the particle requirements, the possibility of blockage caused by oversized particles or long fiber materials entering the pump body can be reduced.ZJ centrifugal slurry pump price