CN2816404Y - Pneumatic mad-slurry pump - Google Patents

Abstract

The utility model provides a pneumatic mud-slurry pump without a rotating member, which using the compressed air as power. The utility model comprises an air pressure distributor and more than two mud sucking and discharging cylinders. The upper side of each mud sucking and discharging cylinder is respectively communicated with a mud sucking pipe, and lower side of each mud sucking and discharging cylinder is communicated with a mud discharging pipe and a pneumatic pipe. The mud sucking pipes and the mud discharging pipes are all provided with check valves, and the other end of the pneumatic pipe is communicated with a positive air pressure generator (air compressor), a negative air pressure generator (vacuum pump) and an exhaust outlet through the air pressure distributor. The utility model uses the air pressure as the power to discharge the mud, and each mud sucking and discharging cylinder can suck the mud during the negative pressure and discharge the mud during the positive pressure. Corresponding cam sets control spool valves so as to control the opening and the closure of distributing valves, and thus, the utility model periodically finishes the mud suction, the mud discharge and the air exhaust of mud sucking and discharging cylinders. The connection of a plurality of mud sucking and discharging cylinders, corresponding distributing valves and pipelines can realize continuous mud sucking and discharging processes. The utility model overcomes the defect that the ordinary mud-slurry pump with an impeller structure has fast abrasion and easy winding, and increases use reliability.

Description

Airpressure actuated slurry pump

Technical field

The invention belongs to a kind of equipment of removing contamination, more specifically for being used for removing the slurry pump of mud under water.

Background technique

The slurry pump that desilting is at present adopted mainly contains: centrifugal mud pump, vortex type slurry pump, strand suction formula slurry pump, submerged pump etc.It all is the purpose that realizes desilting with the kinetic energy that high speed rotating was produced of pump impeller.Because the meson of mud is very complicated, sand content is higher, thus to pump shaft, packing, friction loss that impeller disk and seal ring etc. produce and destruction are quite serious.The pump that has used after 100-200 hour, and impeller and seal ring are just accused and scrapped.Not only maintenance cost height, and efficient also declined to a great extent later in use in 40-70 hour.Many rivers in close city are because entering of domestic garbage contains many fibrous dirts, as braided bag in the mud again, plastic bag, weeds etc., these dirts cause regular winding to stop up all for the impeller of rotation, and the pump running a few minutes that have will remove once.

Summary of the invention

The present invention seeks to provides a kind of airpressure actuated slurry pump that does not have rotary component for solving the wearing and tearing and the obstruction of rotary component in the machines for mud clearage.

Content of the present invention is: airpressure actuated slurry pump, comprise pneumatic solenoid, the air pressure distributor, dredging tube, sludge drainage pipe and suction mud cylinder assembly are formed, suction mud cylinder assembly comprises two above suction mud cylinders, each suction mud cylinder is communicated with dredging tube respectively down, last connection sludge drainage pipe and pneumatic solenoid, inhale, safety check is all arranged on the sludge drainage pipe, the pneumatic solenoid the other end is connected by air pressure distributor and positive air pressure generator (air compressor) and atmosphere pressure pipe and negative air pressure generator (vacuum pump), the air pressure distributor is controlled the interior air pressure of each pneumatic solenoid by malleation, normal pressure, negative pressure is periodically changed, pressure change between each pneumatic solenoid hockets, spoil disposal is used as power by air pressure, inhale mud, spoil disposal during malleation during each suction mud cylinder negative pressure.The dredging tube outlet extends to the top of suction mud cylinder chamber and safety check is arranged, and the sludge drainage pipe entrance extension has safety check to the bottom and the suction oral area of suction mud cylinder chamber, and the aerodynamic force tube inlet is at the top of cylinder chamber; The air pressure distributor mainly is driving link with the cam mechanism, guiding valve is a driven member, periodically finish of the conversion of aerodynamic force intraductal atmospheric pressure by the guiding valve that corresponding double-linked cam group is controlled on each distributing valve by malleation, normal pressure (exhaust), negative pressure, the corresponding cam salient point of each distributing valve initial angle evenly distribute by the whole cycle so that during its work malleation, exhaust, the negative pressure starting point in the corresponding pneumatic solenoid periodically evenly distribute synchronous operation.

This airpressure actuated slurry pump has three suction mud cylinders, dredging tube on each cylinder and sludge drainage pipe are in parallel respectively outside cylinder, connect the pneumatic solenoid that on each cylinder and connect a distributing valve respectively, each distributing valve is made up of three guiding valves, to three synchronous operated cam drive of shaft coupling should be arranged, the other end of three guiding valves on each distributing valve is communicated with the healthy tendency pressure pipe respectively, the atmosphere pressure pipe, pressure pipe angrily, three guiding valves on each distributing valve by the connection of cam set control cycle but are communicated with simultaneously, three distributing valve outlet air pressure are by malleation, normal pressure, negative pressure is periodically changed, but interior three distributing valves have wherein two to be in positive air pressure and negative air pressure on-state respectively at least any time.

The principle of the invention is that the negative pressure that produces with vacuum pump sucks mud, with the malleation that pressurized air produces mud is discharged.Suction mud cylinder is equipped with special-purpose walking pontoon and ship and hangs, and can dive into to count Mi Zuoye under water, and suction inlet inserts in the mud all the time, so suction is dense, is that the blade slurry pump is incomparable.

Critical component of the present invention is the air pressure distributor, it can suitably regulate the suction time according to the height and the far and near of discharge distance of concentration of hydraulic mixture, when the concentration of hydraulic mixture of discharging is too high or too low, regulate air pressure distributor motor speed, the cam rotating speed is raise or reduction, and the change single cylinder sucks and the time of discharge is regulated the height of discharging concentration of hydraulic mixture, and therefore, this airpressure actuated slurry pump can be widely used in the desilting work under the various situations.

Because the present invention adopts air pressure to be used as power, there has not been the impeller rotation of common slurry pump, thereby can reduce silt greatly to the winding of the abrasion of equipment and fibrous material to equipment, and make product longer service life of the present invention, operational safety higher, Applicable scope is broader.

Description of drawings

Fig. 1 is the fundamental diagram of the embodiment of the invention.

Fig. 2 is an embodiment of the invention scheme of erection.

Among the figure, 1. suction mud cylinder, 1-01. dredging tube safety check, 1-02. sludge drainage pipe safety check, 2. dredging tube, 3. sludge drainage pipe, 4. pneumatic solenoid, 5. healthy tendency pressure pipe, 6. atmosphere pressure pipe, 7. pressure pipe angrily, 8-1,8-2,8-3. cam, 9-1,9-2,9-3. cam, 10-1,10-2,10-3. cam, 11-mud, 12. horizontal planes, 13. distributing valve, 14. air pressure distributors

Specific embodiment

Airpressure actuated slurry pump, three suction mud cylinders (1) are arranged, dredging tube on each cylinder (2) and sludge drainage pipe (3) are in parallel respectively outside cylinder, connect the pneumatic solenoid (4) that on each cylinder and connect three distributing valves (13) respectively, each distributing valve (13) is made up of three guiding valves, to three synchronous operated cam drive of shaft coupling should be arranged, the other end of three guiding valves on each distributing valve (13) is communicated with healthy tendency pressure pipe (5) respectively, atmosphere pressure pipe (6), pressure pipe (7) angrily, three guiding valves are by the connection of cam set control cycle but be not communicated with simultaneously, three distributing valves (13) outlet air pressure is by malleation, normal pressure, negative pressure is periodically changed, but interior three distributing valves (13) have wherein two to be in positive air pressure and negative air pressure state respectively at least any time.Hang the water that suction mud cylinder (1) is placed the need desilting with pontoon or ship, make suction port go deep into about 0.5 meter of mud (H among the figure), start air compressor and vacuum pump, open after distributor cam rotating speed is transferred to 4～6 rev/mins by (single cylinder suct or efflux time about 3.5～5 seconds).Should constantly suction mud cylinder be moved horizontally in water during operation, and suction port be dropped to the mud bottommost gradually, a need move horizontally suction mud cylinder and get final product subsequently.Calculate according to hydraulics ozzle fluid flow: Q=F √ 2gH, H is the water level height, and when suction mud cylinder drops to approximately below 4 meters the time under water, the outlet of suction pipe and the pressure difference H of the water surface can satisfy the needs of mud inhalation flow, so the time can close vacuum pump, vacuum tube and atmosphere are connected.Structural type of the present invention and disposing: one in air compressor, one in vacuum pump, one in air pressure distributor, suction mud cylinder one cover, three of tracheaes.The interior suction pipe outlet of suction mud cylinder (1), sludge drainage pipe inlet are respectively equipped with safety check (1-01,1-02), negative pressure in the cylinder and just be pressed with the air pressure distributor and control, a whole set of distributor has three independent distributing valves (13) to form, suction mud cylinder (1) also independently divides cylinder to form by three, the suction port of three branch cylinders and exhaust port are in parallel to be used, and each divides pneumatic solenoid (4) the connection distributing valve (13) separately of cylinder.The guiding valve of distributing valve (13) is cam-actuated by the worm-and-wheel gear drive of electromagnetic adjustable speed motor direct connection, and each distributing valve (13) is made up of three guiding valves, to the cam drive of three shaft couplings should be arranged.Distributing valve (13) is in each operation period, cam (8-1,8-2,8-3) drives guiding valve (malleation) 125 °/360 ° for circle, cam (9-1,9-2,9-3) drives guiding valve (exhaust) 10 °/360 ° for circle, cam (10-1,10-2,10-3) drives guiding valve (negative pressure) 125 °/360 ° for circle, (other sections in cycle are excessive section).The active section of cam (8-1) is 0 °～125 °, the active section of cam (8-2) is 120 °～245 °, the active section of cam (8-3) is 240 °～365 °, for preventing that pressure surge appears in mud in the pipeline, 5 ° at the terminal point (about 0.06 second) of the leading previous cam of starting point of each cam above each distributing valve (13), three cam shaft couplings rotate synchronously, can guarantee continuous the sucting and discharge of mud in importing and exporting house steward, finish the desilting process.Each suction mud cylinder is finished the time of one-period and is finished by speed-adjustable motor.

Claims (3)

1. airpressure actuated slurry pump, comprise dredging tube, sludge drainage pipe and suction mud device, it is characterized in that the suction mud device comprises pneumatic solenoid, the air pressure distributor, the positive air pressure generator, the negative air pressure generator, two above suction mud cylinders, the air pressure distributor contains respectively at least two above distributing valves with the corresponding linkage of suction mud cylinder, each suction mud cylinder is communicated with dredging tube respectively down, last connection sludge drainage pipe and pneumatic solenoid, inhale, safety check is all arranged on the sludge drainage pipe, the pneumatic solenoid the other end is connected by air pressure distributor and positive air pressure generator and atmosphere pressure pipe and negative air pressure generator, the air pressure distributor is controlled the interior air pressure of each pneumatic solenoid by malleation, normal pressure, negative pressure is periodically changed, pressure change between each pneumatic solenoid hockets, spoil disposal is used as power by air pressure, inhale mud, spoil disposal during malleation during each suction mud cylinder negative pressure.

2. airpressure actuated slurry pump as claimed in claim 1, it is characterized in that the dredging tube outlet extends to the top of suction mud cylinder chamber and safety check is arranged, the sludge drainage pipe entrance extension has safety check to the bottom and the suction oral area of suction mud cylinder chamber, and the aerodynamic force tube inlet is at the top of cylinder chamber; The air pressure distributor mainly is driving link with the cam mechanism, guiding valve is a driven member, periodically finish of the conversion of aerodynamic force intraductal atmospheric pressure by the guiding valve that corresponding double-linked cam group is controlled on each distributing valve by malleation, normal pressure, negative pressure, the corresponding cam salient point of each distributing valve initial angle evenly distributed by the whole cycle, so that malleation, exhaust, the negative pressure starting point in the corresponding pneumatic solenoid periodically evenly distributes during its work.

3. airpressure actuated slurry pump as claimed in claim 1 or 2, it is characterized in that having three suction mud cylinders, dredging tube on each cylinder and sludge drainage pipe are in parallel respectively outside cylinder, connect the pneumatic solenoid that on each cylinder and connect a distributing valve respectively, each distributing valve is made up of three guiding valves, to three synchronous operated cam drive of shaft coupling should be arranged, the other end of three guiding valves on each distributing valve is communicated with the healthy tendency pressure pipe respectively, the atmosphere pressure pipe, pressure pipe angrily, three ends on each distributing valve are communicated with the healthy tendency pressure pipe respectively, the atmosphere pressure pipe, pressure pipe angrily, three guiding valves on each distributing valve by the connection of cam set control cycle but are communicated with simultaneously, three distributing valve outlet air pressure are by malleation, normal pressure, negative pressure is periodically changed, but interior three distributing valves have wherein two to be in positive air pressure and negative air pressure on-state respectively at least any time.

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