液下渣浆泵具有节能、振动小、噪音低、运转牢靠、运用寿命长、维修便当等特性。泵体泵盖与过流部件:为液下泵的一种,泵壳为双层壳体构造。外层为金属泵壳(前泵壳、后泵壳),其资料通常为HT200 或 QT500 — 7 ,内层壳体可用高铬合金铸铁制做(包括护套、前护板、后护板),或用橡胶制(包括前护套,后护套)。轴承采用油脂光滑。依据渣浆池液面的上下,可选择不同长度的泵传动轴或吸入管。在池水深度有较高请求下,能够采用定制加长轴。不需求任何轴封和轴封水,在吸入量缺乏的工况下也能正常工作。该系列渣浆泵主要用来处置含有固体颗粒的腐蚀性浆体。该系列泵处置浆体的重量浓度为:灰浆50%,矿浆60%。液下渣浆泵是主要适用于电力、冶金、煤炭、建材、化工等工业行业处置含有固体颗粒的腐蚀性浆液的新一代节能型单级、单吸、立式离心式渣浆泵。
2、串联用泵启动,亦遵照上述办法。开启一级泵后,即可将末级泵出口阀门找开一点(开大小以一级泵电机电流为额定电流1/4为宜),然后即可相继启动二级三级直到末级泵,串联泵全部启动后,即可逐步开大末级泵出口阀门,阀门开大小快慢,应以泵不振动和任一级泵电机都不超额定电流来控制。
3、液下渣浆泵主要以保送流量为目,运转监控系统中装上流量表(计),以随时监控流量能否契合请求;装有旋流器管路系统、冲渣系统、压滤脱水系统中还请求管路出口处有一定压力。这种系统中还应装上压力表以监控压力能否契合请求。
The submerged slurry pump has the characteristics of energy saving, low vibration, low noise, reliable operation, long service life and easy maintenance. Pump body, pump cover and overflow parts: it is a kind of submerged pump, and the pump shell is a double-layer shell structure. The outer layer is metal pump casing (front pump casing and rear pump casing), and its data is usually HT200 or QT500-7. The inner layer can be made of high chromium alloy cast iron (including sheath, front guard plate and rear guard plate), or rubber (including front sheath and rear sheath). The bearing is smooth with grease. Pump drive shaft or suction pipe with different length can be selected according to the liquid level of slag slurry pool. Custom lengthening shaft can be used when there is a high request for pool water depth. There is no need for any shaft seal and shaft seal water, and it can work normally under the condition of lack of suction. This series of slurry pumps are mainly used to dispose of corrosive slurry containing solid particles. The weight concentration of Slurry Treated by this series of pumps is 50% of mortar and 60% of ore slurry. Submerged slurry pump is a new generation of energy-saving single-stage, single suction and vertical centrifugal slurry pump, which is mainly suitable for the disposal of corrosive slurry containing solid particles in electric power, metallurgy, coal, building materials, chemical and other industrial industries.
Due to the limitations of its title, some people not in the industry misunderstand it. In the application process, we must pay attention to reasonable design, correct calculation and appropriate selection, which are very important.
1. Before shipment, expand the pump inlet valve and close the pump outlet valve. Then start the pump. After the pump is started, gradually start the pump outlet valve. The opening size and speed of the pump outlet valve shall be controlled by the fact that the pump does not vibrate and the motor does not exceed the rated current.
2. The above method shall also be followed when the series pump is started. After the first stage pump is started, the outlet valve of the last stage pump can be opened a little (the opening size should be based on the motor current of the first stage pump as 1 / 4 of the rated current), and then the second and third stages can be started successively until the last stage pump. After all the series pumps are started, the outlet valve of the last stage pump can be gradually opened. The speed of opening the valve should be controlled by the fact that the pump does not vibrate and the motor of any stage does not exceed the rated current.
3. The submerged slurry pump mainly aims at the guaranteed flow, and a flow meter (meter) is installed in the operation monitoring system to monitor whether the flow can meet the requirements at any time; A certain pressure is required at the outlet of the pipeline in the pipeline system equipped with cyclone, slag flushing system and pressure filtration dehydration system. A pressure gauge shall also be installed in this system to monitor whether the pressure meets the requirements.
4. In addition to monitoring the flow and pressure during operation, monitor the motor and do not exceed the rated current of the motor. Monitor whether the oil seal, bearing, etc. can have abnormal phenomenon, whether the pump can have evacuation or overflow, etc. at any time, and handle it at any time.
5. The submerged depth of the pump is ≤ 2000mm, the pump is connected with the motor through the elastic coupling, and the submerged slurry pump rotates clockwise from the direction of the prime mover.