Belt filter press-mud pump overview classification use

     The mud pump is a machine that delivers flushing fluid such as mud or water to the borehole during drilling. Mud pump is an important part of drilling machinery and equipment. Its main function is to inject the mud into the well with the drill bit during the drilling process, cooling the drill bit, cleaning the drill tool, cementing the well wall, driving drilling, and bringing the cuttings back to the ground after drilling. In the common positive circulation drilling, the mud pump transfers the surface flushing medium-clean water, mud or polymer flushing fluid under a certain pressure, through the high-pressure hose, faucet and the center hole of the drill string to directly send it to the bottom of the drill bit. The purpose of cooling the drill bit, removing the cutting debris and transporting it to the surface. Commonly used mud pumps are piston type or plunger type. The crankshaft of the pump is rotated by the power machine. The crankshaft drives the piston or plunger to reciprocate in the pump cylinder through the crosshead. Under the alternate action of suction and discharge valves, the purpose of pressure delivery and circulation of flushing fluid is realized.

NL sewage slurry pump is a single-stage single-suction vertical centrifugal pump. The main components are volute, impeller, pump seat, pump housing, support cylinder, motor seat, motor and so on. The volute, pump seat, motor seat, and impeller nut are cast iron with good corrosion resistance and convenient processing technology. The impeller is three-piece single-circular-chord curved blades, semi-closed impellers and malleable cast iron are used, so it has high strength and corrosion resistance; it is easy to process, good through, and efficient. In order to reduce weight and reduce the amount of turning, the pump shaft is made of high-quality carbon steel cold-drawn round steel. The mud pump seat is equipped with four skeleton oil seals and shaft sleeves to prevent shaft wear and extend shaft life. The mud pump can be used vertically or obliquely, and has a small footprint. The volute needs to be buried in the working medium. It is easy to start and does not require water diversion. The rotation direction should be clockwise from the tail of the motor. The length of the switchboard is available in various specifications, so that the user can choose it according to local conditions.
The main purpose of mud pump:
①NL type mud pump, used in mining, papermaking, printing and dyeing, environmental protection, graphite, mica, gold, ceramics, oil refining, petroleum, chemical industry, farm, salt field, iodine field, dyeing and chemical, wine making, food, fertilizer, coking plant, construction , Marble factories, gold mines, mud, quicksand, mud ponds, sewage ponds, turbid liquids are used to transport and suck thick slurry, charging and suspended substances. It can also be used for coal mine drainage and fluids containing mud.
②If the mud pump is combined with a high-pressure water pump and a water gun to form a hydraulic mechanized earthwork unit, it can be used for land leveling, river and pond dredging, excavation and other small water conservancy projects, as well as urban air defense projects. The following works.
③Fish farming is used to clean the pond with water and increase oxygen in the fish pond.
Mud pump performance parameters

The two main parameters of mud pump performance are displacement and pressure. The displacement is calculated by the number of liters discharged per minute. It is related to the diameter of the hole and the required speed of the flushing fluid from the bottom of the hole, that is, the larger the hole diameter, the greater the required displacement. The up-and-back speed of the flushing fluid is required to flush the cuttings and rock dust cut by the drill bit from the bottom of the hole in time, and carry them to the surface reliably. When drilling geological cores, the upward and backward speed is generally about 0.4 to 1 m/min. The pressure of the pump depends on the depth of the borehole, the resistance of the channel through which the flushing fluid passes, and the nature of the flushing fluid delivered. The deeper the borehole, the greater the pipeline resistance and the higher the pressure required. As the diameter and depth of the borehole change, the pump displacement is required to be adjusted at any time. In the pump mechanism, there is a gearbox or hydraulic motor to adjust its speed to achieve the purpose of changing the displacement. In order to accurately grasp the changes in the pressure and displacement of the pump, a flow meter and a pressure gauge should be installed on the mud pump, so that the driller can understand the operation of the pump at any time. At the same time, the pressure change can judge whether the condition in the hole is normal to prevent accidents in the hole. .
Mud pump classification
Mud pumps are divided into two types, single-acting and double-acting. Single-acting mud pumps only complete one suction and drainage action in one cycle of piston reciprocating motion. The double-acting mud pump completes two suction and drainage actions every reciprocation. If classified by the number of cylinders of the mud pump, there are 3 types of single cylinder, double cylinder and triple cylinder.

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