High-pressure mud transfer and frame filter are the key processes in non-metal production. The mud flows under high pressure and the abrasion is very good. Ordinary pumps can not be used under such working conditions. In order to solve the problem of this process, YB series ceramic hydraulic piston pump produced by Xi'an Whirlpool Machinery Manufacturing Co., Ltd. has the advantages of high outlet pressure, good wear resistance and convenient maintenance. It is the only one that has passed TUV international certification ceramic column Plug pump manufacturers. YB series ceramic hydraulic piston pump was first used in ceramic production to the spray drying tower transmission of mud, and now the production of ceramic spray drying tower does not have a YB series ceramic hydraulic piston pump. At present, the pump is widely used in ceramics, porcelain, non-metallic, chemical and other fields. In order to make everyone better use and use YB series ceramic hydraulic piston pump, now the basic selection methods are described below:
First, the type and classification of piston pump:
The pump is divided into high-pressure pump, low-pressure high-flow pump and variable pump, the same specifications are also divided into ordinary pump and anti-corrosion acid pump. High-pressure pump for long-distance or high-altitude slurry delivery; low-pressure high-flow pump for a stable mass of slurry delivery; variable pump is suitable for use with a variety of filter press filter supporting the use of such pumps with the filter density Increased automatically to make the pressure increase? Flow reduction.
Second, the plunger pump selection:
YB series piston pump is mainly used for the transmission of ceramic slurry, coal water slurry, kaolin and non-metallic mineral suspension. It can also be used for the transportation of mine slurry, chemical slurry of food suspension and magnetic material. The transportation solid content is more than 70 %, Variable pump equipped with a filter press with high work and energy efficiency. Selection should pay attention to the following points: 1, to determine the medium conditions, the plunger pump medium is not allowed to appear in large particulate matter, otherwise it will cause work failure, iron pollution requirements of the occasion should use stainless steel plunger pump, acid Or alkaline medium anti-corrosion piston pump should be used; 2, to determine a reasonable flow range, the nominal displacement of the plunger pump model is the flow rate, the selection should be considered appropriate margin range; 3, determine the applicable pressure level, plunger Pump rated pressure can reach 2.0-2.5MPa, with the filter should be used when the variable displacement pump, the slurry should be used low-pressure pump, reducing waste; 4, to determine the above parameters, according to the principle of rather big, according to the standard Model selection YB series ceramic plunger pump; 5, if in doubt, should call the professional manufacturer, professional engineering and technical people to help selection.
Third, YB series ceramic plunger pump use
1, the installation: the pump on the basis of the level of correction, with the ground screw can be fixed? No need to ground screw ?, To facilitate the replacement of hydraulic oil and flushing mud pipeline, the pump should be 10 centimeters above the ground, based Drainage should be around.
2, the use of pumps:
(A), the preparatory work before the start: Check the fastening of the parts; check the fuel tank level, the level of the oil tank to the oil scribing shall prevail in summer with N46, N32 winter with hydraulic oil. High-pressure pump and pump applications above 140 the same type of anti-wear hydraulic oil. Check the pressure gauge range, pressure gauge hydraulic station 0-16MPa, pressure gauge on the air tank should be 0-6MPa range, can not be installed anti.
(B), start: open cooling water; closing, open the switch, jog start button, check the motor steering, should be clockwise, must not be reversed. After checking the correct, then start the motor and pump.
(C), the operation of regulation: (1), adjust the relief valve can adjust the hydraulic pressure, you can adjust the mud pressure, adjust the pressure relief valve should be back on the lock nut, each open stop without moving relief valve, oil Pressure can not be higher than 12MPa. Note: The pump should be low-load start, if the two pumps alternately, you can stop after the start, without adjusting the relief valve; (2), adjust the position of the two bumper on the carriage, plunger stroke can be adjusted; (3), when the plunger and seal ring wear leakage occurs, the appropriate pressure ring, tightly grout is appropriate, when the pressure ring to the packing box is still contact with the leakage slurry can be sealed ring at the end plus Gasket. In order to ensure that the seal ring and the plunger concentric, the upper end of the pressure ring and the packing box strive to the upper end parallel to the unevenness of not more than 0.5mm; (4) variable pump and filter press with the use of regulation: adjustment method with the operation of regulation 1).
When the pump is delivered from the factory, the pressure of sending slurry is set to 2.0MPa. If the pressure of the slurry to be sent is lower than 2.0MPa, adjust the overflow counterclockwise to make the pressure reach the required value when the plunger runs slowly.
(D), downtime:
(1), press the stop button, the pump stops.
(2), stop cooling water.
(3), flush with the valve box.
3, pump maintenance and wearing parts replacement:
(A), in order to ensure the normal operation of the pump, should pay attention to the following: a, the choice of clean high-quality hydraulic oil, the general filter once in January, three months to replace once metamorphism replaced; b, the pump can not pass cooling water Start and work in case of ceramic plunger to prevent the rapid burst of heat and the rubber seal ring heat damage, the water also played the role of flushing the plunger to extend the life of the plunger and seal ring; c, seal Ring should not be pressed too tight to not slippery as appropriate; d, long-term cold in the cold season when the pump should be drained pumping mud, to prevent cracking of the pump; e, hydraulic system and mud pipeline seals F, should make the plunger stroke as long as possible to the piston does not impact the cylinder cover, agile commutation is appropriate; g, when seen from the pressure gauge on the air tank pressure fluctuation is greater than 0.2MPa , You must stop the pump, open the following valve, drain the mud, make up the air, if necessary, remove the pressure gauge on the air tank, flush the valve box from the upper port; h, regularly (about a week) check and flush the valve box; i , Bladder type After half a year can be filled with nitrogen or an argon gas, preferably pneumatic pressure 3.0MPa.
(B), wearing parts replacement:
(1), the seal ring: remove the pressure ring screw, manipulate the relief valve, the system gradually increase the oil pressure to promote the piston, the use of mud pressure seal ring loosening, the plunger lifted after the pump, remove the piston rod Remove the seal ring with the coupling screw of the plunger, carefully insert the plunger into the pump body, surround the plunger with an extremely thin piece of copper, and attach the seal ring one by one.
(2), the plunger: the method above, until the plunger referred to a higher position to stop the pump, remove the piston rod and plunger coupling screw. Then pull the plunger and packing together to replace the new plunger, one by one to tighten the screws.
(3), the pump: Remove the cap screws, lifting the fuel tank cap? With the motor ?, This action must beware of crash anti-oil filter and tubing, remove the suction pump, drain, and then remove the fixed pump Screw, you can remove the pump.
Precautions:
1, Flushing the valve box and replace each of the parts, do not be too tight tight rod top, no leakage can be;
2, remove the right cylinder replacement piston on the pin, pay attention to the pin must escape the gap under the cover of the cylinder (oil communication port), otherwise, can not fill the oil and the piston can not be commutated;
3, part of the fuel tank should always be kept clean, can not be washed with water lid and manifold;
4, hydraulic oil to be absolutely clean, we must regularly check the quality of oil;
5, after adjusting the pump pressure, generally do not go to adjust the relief valve, otherwise the original system disorder, prone to failure;
6, there is an abnormal sound, should immediately shut down, check the source of the fault, repair it.
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