CN207539387U - Block-resistant type hydraulic support atomizing de-dusting control valve - Google Patents

Abstract

The utility model discloses a kind of block-resistant type hydraulic support atomizing de-dusting control valves, including valve body, valve body is equipped with water inlet, water outlet, control liquid import and valve chamber, inlet and outlet and is connected by valve chamber, core assembly is equipped in valve chamber, core assembly is in non-rigid composite structure；It is equipped between water inlet and valve chamber and includes the anti-block filtering device that grit decomposes knife.There are two valve chamber and water outlet are all provided with, two valve chambers are connected by intercommunicating pore, and there is core assembly the two-way formed by two control liquid imports to control liquid driving structure, and two water outlets can be connected by valve chamber and horn mouth with water inlet respectively；Alternatively, two water outlets are connected simultaneously with water inlet by valve chamber and horn mouth, core assembly blocks horn mouth by the valve core head of Self-resetting.The beneficial effects of the utility model are that spool stroke is short, valve port is switched on and off that response is fast, sealing element service life is long；And spool is without plug hidden danger, compact-sized, voltage endurance capability is strong, service life is long.

Description

Block-resistant type hydraulic support atomizing de-dusting control valve

Technical field

The utility model is related to a kind of hydraulic control valves, more particularly to a kind of to be used for coal mine underground hydraulic support frame atomizing de-dusting Block-resistant type hydraulic control valve.

Background technology

Current country pays much attention to the harmfulness of dust, in order to a line worker life security and reduce dirt to greatest extent The generation of tuberculosis, either old project or grassroot project require very sternly in terms of environmental protection inspection and acceptance, as long as dust point is all necessary There is dust prevention；And the most link of coal face dust includes grinding when drop column moves frame dust fall, Sub-Level Caving impact dirt, coal machine cut coal Dirt and wall caving impact dirt etc. are ground, dust prevention therein is exactly by spraying clear water depositing dust, and atomizing de-dusting mainly passes through hydraulic pressure Control valve is turned on and off realizing by the HYDRAULIC CONTROL SYSTEM spray valve of hydraulic support.To prevent valve blockage, it usually needs The front end setting filter device of clear water access valve, it is hidden so as to eliminate blocking solid impurity in water effectively to be prevented to enter in valve Suffer from.But this mode causes spraying system complicated.In addition, also there are service life is short or spray outlet for existing control valve Few deficiency.Such as Chinese patent notification number CN205990928U, date of declaration on March 1st, 2017, a kind of disclosed auto spraying Control valve, the O-ring seals in core assembly, spool movement valve opening and close two states when, respectively with Two valve chamber hole sealings, and two valve chamber holes are correspondingly formed on two components, valve chamber hole is docked by horn mouth, is moved in spool During dynamic, O-ring seals need to move from the cylindrical fit section of one end, and other end circle is entered back into behind horn mouth Butt Section There is the working condition for expanding and shrinking repeatedly, be easy to cause O-ring seals premature ageing and abrasion, shorten and use the longevity in shell of column Life.China Patent Publication No. CN104747223A on July 1 2015 publication date, discloses a kind of hydraulic support and sprays automatically Mist control device, the device are set there are two core assembly, but only there are one spray outlets, can only when needing to increase atomizing nozzle Increase entire control device, cause structure too fat to move, the wasting of resources.For this reason, it may be necessary to existing atomizing de-dusting control valve into advance one The improvement of step.

Invention content

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of block-resistant type hydraulic support atomizing de-dusting control Valve processed, which decomposes the anti-block filtering device of knife by being set on valve body with grit, to reduce dust size, so as to It can effectively prevent spool jams；Further by bivalve cored structure in parallel realize the Integrated design of diplopore way of supplying water simplify and Cramped construction reduces cost；Structure is also turned off by short stroke and shortens spool displacement distance and spool by non-rigid connection Drive component and executive module composition, avoid that mating interface occurs in sealing element moving area or valve chamber hole wall is tangentially perforated, extend Seal life.

To realize foregoing purpose, the utility model adopts the following technical solution.

A kind of block-resistant type hydraulic support atomizing de-dusting control valve, including valve body, valve body is equipped with water inlet, water outlet, control Liquid import processed and valve chamber, inlet and outlet are connected by valve chamber, core assembly are equipped in valve chamber, core assembly is in control liquid Effect is lower to move, to form the on and off of water inlet and apopore；It is equipped between the water inlet and valve chamber and includes grit Decompose the anti-block filtering device of knife.

Using the utility model of preceding solution, controlled by the pressure fluid that liquid import is controlled to enter, make water outlet It connects and blocks with water inlet, so as to form the atomizing de-dusting control valve of hydraulic support, for forming hydraulic pressure in coal working face The measurements for reduction in supporting region due to being equipped with anti-block filtering device between the water inlet and valve chamber on valve body, can be prevented effectively Big grain size dust enters in the spray channel of control valve, can effectively reduce or eliminate the cloggings such as control valve and spray nozzle, carry Height spraying reliability extends the service life of measurements for reduction system.Moreover, anti-block filtering device, which includes dust, decomposes knife, it can be Into water kinetic energy position, make dust that impact, collision occur with knife, so as to effectively reduce the dust size of water inlet end, reduce system To impurities in water Particle size requirements, the scope of application is widened.

Preferably, the anti-block filtering device includes decomposing tool apron, and decomposition tool apron is sealedly and fixedly connected to be set in the valve body In some anti-block filtering device mounting holes, anti-block filtering device mounting hole bottom is equipped with orifice plate, and orifice plate is abutted solid by decomposition tool apron It is fixed, decompose and particle breakdown chamber be formed in the middle part of tool apron inner end, particle breakdown chamber is connected with the water inlet, decompose tool apron by Grain decomposes bottom of chamber portion and is fixedly connected with the grit decomposition knife；The orifice plate be equipped with water hole, water hole both ends respectively with particle Chamber is decomposed to connect with the valve chamber.To form simple, compact anti-block filtering device structure, convenient for being incorporated on valve body.Wherein, Decomposing knife can be multiple according to cavity volume and the setting of cutter hub size；Preferably, by decompose knife be arranged to circle distribution multiple helical edges or Straight sword structure, similar to the cylindrical milling cutter or cylindrical bar milling cutter of intermetallic composite coating.

It is further preferred that the decomposition tool apron outer wall is equipped with annular groove, annular groove is connected with the water inlet, annular groove Bottom is equipped with and is connected with the particle breakdown chamber by blasthole, and the blasthole is close to the particle breakdown cavity wall.To hold Intracavitary forms spiral water inlet structure, had both increased the impact energy of water inlet, and had also allowed for being rinsed the water hole import of orifice plate, drops Low orifice plate plug hidden danger.

Preferably, there are two the valve chamber and water outlet are all provided with, two valve chambers connect to form parallel-connection structure by intercommunicating pore, There is the core assembly being equipped in valve chamber the two-way formed by two control liquid imports to control liquid driving structure, to form two A water outlet can be connected by valve chamber and horn mouth with the water inlet respectively；Alternatively, two water outlets simultaneously with the water inlet Mouth is connected by valve chamber with horn mouth, and valve core head is equipped in core assembly, and valve core head is used to form to the bell-mouthed closure. To be suitable for by wherein any one water outlet for water spray, alternatively, two water outlets are simultaneously for water spray.Relative to existing For the control valve that one water outlet is set, structure can be simplified, reduce cost.Moreover, the shutdown of water outlet and water inlet is with connecing It is logical only to need to realize with opening by bell-mouthed closure, without by O-ring seals with docking in bell-mouthed cooperation section It moves back and forth, eliminates sealing ring premature wear, aging phenomenon.

It is further preferred that the valve chamber includes valve chamber epimere and valve chamber hypomere；The core assembly includes drive component With the executive module including valve core head, for the executive module to be driven to move, executive module is used to open or seals drive component Block up the horn mouth；Valve chamber epimere controls liquid inlet communications for setting the driving component with two；Valve chamber hypomere is used for The executive module is set, and is connected with the inlet and outlet；Between valve chamber epimere and valve chamber hypomere by valve chamber every Gear is separated into two separate spaces；Drive component is connected with executive module by connecting rod, and connecting rod stage casing bar portion passes through described Valve chamber barrier, and pass through the matching hole that valve chamber barrier is equipped with and be slidably matched with valve chamber barrier formation, valve chamber barrier both ends It is provided through the connecting rod and the sealing transparent cover blocked is formed to the matching hole.Effectively to avoid spraying clear water with controlling liquid It alters liquid phenomenon, eliminates and be diluted using the control liquid of emulsion or the risk of water, extension hydraulic pressure are mixed using the control liquid of hydraulic oil The service life of system and spray dust-reducing system.It is controlled and supplied water using horn mouth, block bell-mouthed executive module movement 2mm Left and right can open completely, be switched on and off response quickly, agility.

Still more preferably, the executive module includes valve core head fixed seat, and valve core head fixed seat is movably located at In valve chamber hypomere, Self-resetting elastic element, valve core head fixed seat and institute are equipped between valve core head fixed seat and the valve chamber barrier It states and is connected by synchronizing moving connection structure between connecting rod, which sets for being moved up in the connecting rod After set a distance, the valve core head fixed seat is pulled to synchronize and is moved up；The valve core head, which screws togather, to be fixed on the valve core head and fixes Seat lower end.Only to form being automatically closed for valve port by elastic element, the driving that control valve is closed is without pressurize, it is only necessary to one Closing can be completed in a execution action, it is ensured that closes reliable, fast response time, and can effectively reduce valve and close energy consumption.And make Drive component and executive module form nonrigid connection relation, can effectively avoid, spool moving range there are mating interface or Has valve chamber hole wall section jaggy, to extend seal durability, so as to improve control valve service life indirectly.Wherein, even The setpoint distance that extension bar moves up can meet elastic element with 2.0mm~3.0mm and automatically reset range demands, respective drive The displacement distance of component is only needed between 4.0mm~5.0mm；And cylinder or circular cone compression can be used in Self-resetting elastic element Spring, disk spring or elastic washer with Elastic penetration etc. made of elastomeric material, as long as it can be utilized The bell-mouthed any structural elasticity element of elastic force automatic plugging.

Still further preferably, the valve chamber hypomere is in cylinder pore structure；Under the valve core head fixed seat and the valve chamber The cylindrical hole of section is slidably matched；The valve core head is in step axle construction, and valve core head is in for blocking the bell-mouthed work department Cylindric, the cylinder diameter of the work department is less than the cylinder bore diameter of valve chamber hypomere.To pass through cylindric valve core head and loudspeaker Mouth forms reliable sealed connection, even if occurring after wearing, also can automatically be compensated by Self-resetting elastic element, it is ensured that water outlet Shutdown is reliable.In addition, valve core head is less than the cylinder bore diameter of valve chamber hypomere, it can be ensured that between valve core head and valve chamber hypomere inner wall Toroidal cavity is formed, reliably to supply water to another valve chamber.

Still further preferably, the intercommunicating pore is connected on two valve chamber hypomeres.Ensure that two valve chambers pass through equal valve chamber Hypomere toroidal cavity water storage forms juxtaposition.

Still further preferably, the synchronizing moving connection structure includes end and the spool that connecting rod lower end is equipped with The end accommodation space that head fixed seat top is equipped with；It is used to screw togather the threaded hole bottom of the valve core head in the valve core head fixed seat In blind hole structure, blind via bottom is formed with the perforation for wearing the connecting rod, which forms the end accommodation space, and When the valve core head is in the bell-mouthed sealed condition, which, which also has, allows end axial movement to set The space of set a distance.To realize mobile connection structure by simple, compact structure；Ensure to close in water outlet and load, connection After bar moves up setpoint distance, valve core head fixed seat is being driven to move upwards, atomizing de-dusting is provided out to open apopore Use clear water.

Still more preferably, the driving component includes piston, and piston is fixedly connected on connecting rod upper end, and piston slides In cylinder sleeve, cylinder sleeve is arranged in valve chamber epimere for cooperation, and cylinder sleeve outer end is equipped with limit base, and limit base, which is formed, sets the piston Piston cylinder body one end cylinder bottom；One in described two control liquid imports is located on limit base, and above piston；It is another It is a to be set by the valve body and valve chamber epimere, and below piston；The bottom that the valve chamber barrier passes through the valve chamber epimere Portion is set, and is passed through barrier sealing ring and formed liquid sealed connection with valve chamber epimere inner wall, and valve chamber barrier, which is formed, sets the piston Piston cylinder body other end cylinder bottom.Piston only coordinates with cylinder sleeve, is no different, can have with the pistons work state of conventional cylinder Effect ensures that drive component movement driving is reliable, and simple in structure, compact in design, service life are long.And after piston and barrel wear It is replaceable, to extend the valve body service life.Valve chamber barrier can be in the structure for being fixed on valve chamber epimere bottom, also movably be located at valve chamber Epimere bottom, to form the valve chamber barrier of piston structure.

This control valve is more than 100,000 times by test pressure for 10MPa service lifes；And stent spraying of the prior art For control valve hydraulic pressure when less than 5MPa, the service life is 3000 times or so, and when hydraulic pressure is more than 5MPa, portioned product service life is even Also it is not achieved 1000 times.For the prior art, this product voltage endurance capability is strong, service life is long, has apparent Technical advantage.

The beneficial effects of the utility model are that spool stroke is short, valve port is switched on and off responding fast, seal durability It is long；And spool is without plug hidden danger, compact-sized, voltage endurance capability is strong, service life is long.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings, but the utility model therefore is not limited in institute Among the scope of embodiments stated.

Referring to Fig. 1, a kind of block-resistant type hydraulic support atomizing de-dusting control valve, including valve body 1, valve body 1 is equipped with water inlet 2nd, water outlet, control liquid import and valve chamber, water inlet 2 are connected with water outlet by valve chamber, and core assembly, spool are equipped in valve chamber Component moves under control liquid effect, to form the on and off of water inlet 2 and apopore；The water inlet 2 and valve chamber it Between be equipped with include grit decomposition knife 3 anti-block filtering device.

Wherein, the anti-block filtering device includes decomposing tool apron 4, and decomposition tool apron 4 is sealedly and fixedly connected to be set in the valve body 1 In some anti-block filtering device mounting holes, anti-block filtering device mounting hole bottom is equipped with orifice plate 5, and orifice plate 5 is abutted by decomposition tool apron 4 It is fixed, it decomposes and is formed with particle breakdown chamber in the middle part of 4 inner end of tool apron, particle breakdown chamber is connected with the water inlet 2, decomposes tool apron 4 Multiple grits are fixedly connected with by particle breakdown bottom of chamber portion and decompose knife 3, grit, which decomposes knife 3, has the multiple of circle distribution Helical edges or straight sword；The orifice plate 5 is equipped with water hole, and water hole water inlet end is connected by 100 mesh filter screens and particle breakdown chamber Logical, water hole water outlet end is connected with the valve chamber.It decomposes 4 outer wall of tool apron and is equipped with annular groove 4a, annular groove 4a and the water inlet Mouth 2 connects, and annular groove 4a bottoms are equipped with and are connected with the particle breakdown chamber by blasthole, and the blasthole is close to the particle point Solve cavity wall.

There are two the valve chamber and water outlet are all provided with, including the first valve chamber 16, the second valve chamber 17, the first water outlet 18 and Two water outlets 19；First valve chamber 16 is connected with the second valve chamber 17 by intercommunicating pore 6, and the core assembly being equipped in valve chamber has The two-way formed by the first control liquid import 20 and the second control liquid import 21 controls liquid driving structure, to be formed in the first loudspeaker When mouth 22 is closed, the second water outlet 19 can pass through the first valve chamber 16, intercommunicating pore 6,17 valve chamber of the second valve chamber and the second horn mouth 23 It is connected with the water inlet 2；When the second horn mouth 23 is closed, the first water outlet 18 can pass through the first valve chamber 16 and the first loudspeaker Mouth 22 is connected with the water inlet 2；Valve core head 7 is equipped in core assembly, valve core head 7 is used to form the bell-mouthed envelope to correspondence It is stifled.To be suitable for by wherein any one water outlet for water spray, alternatively, two water outlets are simultaneously for water spray.

The valve chamber includes valve chamber epimere and valve chamber hypomere；The core assembly includes drive component and including valve core head 7 Executive module, for drive component for the executive module to be driven to move, executive module is used to open or blocks the horn mouth； Valve chamber epimere controls liquid inlet communications for setting the driving component with two；Valve chamber hypomere is used to set the execution Component, and connected with the water inlet 2 and water outlet；Between valve chamber epimere and valve chamber hypomere two are separated by valve chamber barrier 8 A separate space；Drive component is connected by connecting rod 9, and 9 stage casing bar portion of connecting rod passes through the valve chamber barrier 8, and passes through valve The matching hole that chamber barrier 8 is equipped with is slidably matched with the valve chamber barrier 8 formation, and 8 both ends of valve chamber barrier are provided through the company Extension bar 9 simultaneously forms the matching hole sealing transparent cover 10 blocked, and sealing transparent cover 10, which screws togather, to be fixed in valve chamber barrier 8, in End face forms static seal with 8 outer end face of valve chamber barrier and connect, and the hole wall for wearing the hole of connecting rod 9 is equipped with sealing element or is formed close Component structure is sealed, hole wall forms dynamic sealing with the bar portion of connecting rod 9 and connect.

The executive module includes valve core head fixed seat 11, and valve core head fixed seat 11 is movably located in valve chamber hypomere, The Self-resetting elastic element 12 being made of compressed spring, valve core head are equipped between valve core head fixed seat 11 and the valve chamber barrier 8 It is connected between fixed seat 11 and the connecting rod 9 by synchronizing moving connection structure, which is used in the company After extension bar 9 moves up 2.0mm~3.0mm distances, the valve core head fixed seat 11 is pulled to synchronize by connecting rod 9 and moved up； The valve core head 7, which screws togather, is fixed on 11 lower end of valve core head fixed seat.The valve chamber hypomere is in cylinder pore structure；The spool Head fixed seat 11 and the cylindrical hole of the valve chamber hypomere are slidably matched；The valve core head 7 is in step axle construction, and valve core head 7 is used for Block that the bell-mouthed work department is cylindrical, the cylinder diameter of the work department is less than the cylinder bore diameter of valve chamber hypomere. The intercommunicating pore 6 is connected on two valve chamber hypomeres.The synchronizing moving connection structure includes the end that 9 lower end of connecting rod is equipped with The end accommodation space being equipped with 11 top of valve core head fixed seat；It is used to screw togather the valve in the valve core head fixed seat 11 The threaded hole bottom of core print 7 is in blind hole structure, and blind via bottom is formed with the perforation for wearing the connecting rod 9, which forms described End accommodation space, and when the valve core head 7 is in the bell-mouthed sealed condition, which also has End is allowed to move axially the space of 2.0mm~3.0mm distances.

The driving component includes piston 13, and piston 13 is fixedly connected on 9 upper end of connecting rod, and piston 13 is slidably fitted in cylinder In set 14, cylinder sleeve 14 is arranged in valve chamber epimere, and cylinder sleeve 14 is resisted against valve chamber epimere aperture by the ring flange that its outer end is set Edge, 14 outer end of cylinder sleeve are equipped with limit base 15, and limit base 15, which screws togather, to be fixed on the valve body 1, and limit base 15 forms setting institute State piston cylinder body one end cylinder bottom of piston 13, limit base 15 to by 13 travel limit of piston between 4.0mm~5.0mm； The first control liquid import 20 in the first control liquid import 20 and the second control liquid import 21 is located on limit base 15, and position Above piston 13；Second control liquid import 21 is set by the valve body 1 and valve chamber epimere, and positioned at 13 lower section of piston；Institute It states valve chamber barrier 8 to set by the bottom of the valve chamber epimere, and passes through barrier sealing ring 24 and form liquid with valve chamber epimere inner wall It is tightly connected, valve chamber barrier 8 forms the other end cylinder bottom for the piston cylinder body for setting the piston 13.

In the present embodiment, valve chamber barrier 8 can be in the structure for being fixed on valve chamber epimere bottom, also movably be located on valve chamber Section bottom, to form the valve chamber barrier 8 of piston structure.When using moveable set-up mode, the second control liquid import 21 with Intersegmental part runs through position on valve chamber, it is necessary to when being moved positioned at valve chamber barrier 8, other than the moving area of barrier sealing ring 24.

In the present embodiment, cylinder or circular cone compressed spring, disk spring, Huo Zheyou also can be used in Self-resetting elastic element 12 Elastic washer with Elastic penetration etc. made of elastomeric material, for substituting cylindrical compression spring.

In this implementation, when the first horn mouth 22 and the second horn mouth 23 are opened, two water outlets simultaneously with it is described into The mouth of a river 2 is connected by valve chamber with horn mouth, with meet two at simultaneously atomizing de-dusting or other water requirements.

For the utility model in the hydraulic prop system practical application of coal working face, the course of work is as follows：

When stent plate withdraws realization Sub-Level Caving, the second control liquid import 21 on right side and high-pressure emulsion in Fig. 1 Pipeline connection, emulsion enter the lower section of piston 13 of right hand piston cylinder cylinder body cavity of resorption, piston 13 under the effect of emulsification hydraulic power to Upper movement, when valve chamber barrier 8 is using moveable structure, valve chamber barrier 8 is moved down into design position；In piston 13 with leading to Cross the connection that is screwed connecting rod 9 synchronize and move up 2.5mm after, 9 upper end head of connecting rod will be with valve core head fixed seat 11 Closely knit contact, the piston 13 continued to move up will be driven by connecting rod 9 valve core head fixed seat 11 and with valve core head fixed seat 11 valve core heads 7 being spirally connected overcome 12 elastic force of the Self-resetting being made of compressed spring elastic element to move up 2mm and reach this row Journey terminal, the first horn mouth 22 and the first water outlet 18 that mobile valve core head 7 will open closing originally, when the first horn mouth 2 After opening, the first water outlet 18 is connected with the valve chamber hypomere of the first valve chamber 16, it is achieved thereby that the first water outlet 18 and water inlet 2 Connection, the static pressure water that impurity is contained in underground pass sequentially through water inlet 2, annular groove 4a, blasthole tangentially enter decompose tool apron 4 in The particle breakdown intracavitary that end middle part is formed, big grain size impurity is blocked in outside orifice plate 5 in water, and under the effect of tangential hydraulic impact High-speed motion, and decompose knife 3 with grit and collide, rub, the physical contacts such as intercept and be constantly decomposed, crush, when particle is several When what diameter is less than 5 hole diameter of orifice plate, dust-contained airflow when orifice plate sprays to Sub-Level Caving by the first water outlet 18 is passed through, is reached To atomizing de-dusting purpose.

When Sub-Level Caving, which completes plate, to be stretched out, the first control liquid import 20 on right side and high-pressure emulsification liquid pipe in Fig. 1 Road is connected, and emulsion enters 13 top of piston of right hand piston cylinder cylinder body epicoele, and piston 13 is downward under the effect of emulsification hydraulic power Mobile, it is that connecting rod 9 moves downward simultaneously that piston 13 and being threadably secured, which is connect, moves down distance when the two moves and is more than During 2.0mm, connecting rod detaches above 9 end with valve core head fixed seat 11, and connecting rod 9 loads the work in valve core head fixed seat 11 It firmly disappears, connecting rod 9 will continue to move down 2.5mm under hydraulic pressure effect reaches this stroke end, without liquid The valve core head fixed seat 11 of pressure pressure effect and the valve core head 7 that is screwed togather with valve core head fixed seat 11 by compressed spring form from 2.5mm is moved down under the effect of 12 elastic force of reseting elastic element and reaches this stroke end, mobile valve core head 7 opens script The first horn mouth 22 block, blocked the connected state of the valve chamber hypomere of the first water outlet 18 and the first valve chamber 16, i.e., first Water outlet 18 and the access of valve chamber hypomere and water inlet 2 are turned off, and stop supplying water to Sub-Level Caving spraying frame, spraying stops.

When stent rear column declines, the second control liquid import 21 in left side and high-pressure emulsion pipeline connection in Fig. 1, Emulsion enters 13 lower section of piston of left hand piston cylinder cylinder body cavity of resorption, and piston 13 moves up under the effect of emulsification hydraulic power, When valve chamber barrier 8 is using moveable structure, valve chamber barrier 8 is moved down into design position；In piston 13 with being consolidated by screw thread Surely the connecting rod 9 connected synchronizes move up 2.5mm after, 9 upper end head of connecting rod will with valve core head fixed seat 11 is closely knit contacts, The piston 13 continued to move up will drive valve core head fixed seat 11 and the valve being spirally connected with valve core head fixed seat 11 by connecting rod 9 Core print 7 overcomes 12 elastic force of the Self-resetting being made of compressed spring elastic element to move up 2mm and reaches this stroke end, moves The second horn mouth 23 and the second water outlet 19 that dynamic valve core head 7 will open closing originally, after the second horn mouth 23 is opened, the Two water outlets 19 are connected with the valve chamber hypomere of the second valve chamber 17, the valve chamber that the second valve chamber 17 passes through 6 and first valve chamber 16 of intercommunicating pore Hypomere connects, and realizes the connection of the second water outlet 19 and water inlet 2, and the static pressure water that impurity is contained in underground passes sequentially through water inlet 2nd, annular groove 4a, blasthole, which tangentially enter, decomposes the particle breakdown intracavitary that 4 inner end of tool apron middle part is formed, big grain size impurity quilt in water It is blocked in outside orifice plate 5, and the high-speed motion under the effect of tangential hydraulic impact, and collides, rubs, blocks with grit decomposition knife 3 It cuts and physical contacts is waited constantly to be decomposed, crush, when particle geometric diameter is less than 5 hole diameter of orifice plate, passes through orifice plate and pass through Second water outlet 19 sprays to dust-contained airflow during Sub-Level Caving, reaches atomizing de-dusting purpose.

When stent rear column rises, the first of left side controls liquid import 20 to be connect with high-pressure emulsification liquid pipeline in Fig. 1 Logical, emulsion enters 13 top of piston of left hand piston cylinder cylinder body epicoele, and piston 13 moves down under the effect of emulsification hydraulic power, Piston 13 is threadably secured with connecting rod 9 and connect, when mobile piston moves down 2.5mm together with connecting rod 9, connection It will be detached above 9 end of bar with valve core head fixed seat 11, the active force that connecting rod 9 is added in valve core head fixed seat 11 disappears, even Extension bar 9 will then proceed to move down 2mm under hydraulic pressure effect reaches this stroke end, is acted on without hydraulic pressure Valve core head fixed seat 11 and the valve core head 7 hinged with valve core head fixed seat 11 be made of compressed spring Self-resetting elasticity member 2mm is moved down under the effect of 12 elastic force of part and reaches this stroke end, the second horn mouth that mobile valve core head 7 opens script 23 and second water outlet 19 seal, stop to drop column spraying frame for water spray stopping.

The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.

Claims (10)

1. a kind of block-resistant type hydraulic support atomizing de-dusting control valve, including valve body (1), valve body (1) is equipped with water inlet (2), goes out The mouth of a river, control liquid import and valve chamber, water inlet (2) are connected with water outlet by valve chamber, and core assembly, spool group are equipped in valve chamber Part moves under control liquid effect, to form the on and off of water inlet (2) and apopore；It is characterized in that, the water inlet Mouth (2) is equipped between valve chamber includes the anti-block filtering device that grit decomposes knife (3).

2. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 1, which is characterized in that the anti-blocking filtering Device includes decomposing tool apron (4), decomposes tool apron (4) and is sealedly and fixedly connected the anti-block filtering device peace being equipped in the valve body (1) It fills in hole, anti-block filtering device mounting hole bottom is equipped with orifice plate (5), and orifice plate (5) is abutted by decomposition tool apron (4) and fixed, and decomposes knife Seat is formed with particle breakdown chamber in the middle part of (4) inner end, and particle breakdown chamber is connected with the water inlet (2), decompose tool apron (4) by Grain decomposes bottom of chamber portion and is fixedly connected with the grit decomposition knife (3)；The orifice plate (5) is equipped with water hole, water hole both ends difference It is connected with particle breakdown chamber and the valve chamber.

3. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 2, which is characterized in that the decomposition tool apron (4) outer wall is equipped with annular groove (4a), and annular groove (4a) connects with the water inlet (2), annular groove (4a) bottom equipped with it is described Particle breakdown chamber is connected by blasthole, and the blasthole is close to the particle breakdown cavity wall.

4. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 1, which is characterized in that the valve chamber and go out There are two the mouth of a river is all provided with, two valve chambers are connected by intercommunicating pore (6), and the core assembly being equipped in valve chamber has by two controls The two-way control liquid driving structure that liquid import processed is formed, with formed two water outlets can respectively by valve chamber and horn mouth with it is described Water inlet (2) connects；Alternatively, two water outlets are connected simultaneously with the water inlet (2) by valve chamber and horn mouth, core assembly In be equipped with valve core head (7), valve core head (7) is used to form to the bell-mouthed closure.

5. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 4, which is characterized in that the valve chamber includes Valve chamber epimere and valve chamber hypomere；The core assembly includes drive component and includes the executive module of valve core head (7), drive component For the executive module to be driven to move, executive module is used to open or blocks the horn mouth；Valve chamber epimere is used to set institute Drive component is stated, and liquid inlet communications are controlled with two；Valve chamber hypomere for setting the executive module, and with the water inlet (2) it is connected with water outlet；Two separate spaces are separated by valve chamber barrier (8) between valve chamber epimere and valve chamber hypomere；Driving Component and executive module are connected by connecting rod (9), and connecting rod (9) stage casing bar portion passes through the valve chamber barrier (8), and passes through valve The matching hole that chamber barrier (8) is equipped with is formed with the valve chamber barrier (8) and is slidably matched, and valve chamber barrier (8) both ends are provided through The connecting rod (9) simultaneously forms the sealing transparent cover (10) blocked to the matching hole.

6. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 5, which is characterized in that the executive module Including valve core head fixed seat (11), valve core head fixed seat (11) is movably located in valve chamber hypomere, valve core head fixed seat (11) Be equipped with Self-resetting elastic element (12) between the valve chamber barrier (8), valve core head fixed seat (11) and the connecting rod (9) it Between connected by synchronizing moving connection structure, which is used in the connecting rod (9) move up setpoint distance Afterwards, the valve core head fixed seat (11) is pulled to synchronize to move up；The valve core head (7), which screws togather, to be fixed on the valve core head and fixes Seat (11) lower end.

7. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 6, which is characterized in that the valve chamber hypomere In cylinder pore structure；The valve core head fixed seat (11) and the cylindrical hole of the valve chamber hypomere are slidably matched；The valve core head (7) In step axle construction, valve core head (7) is for cylindrical, the cylinder diameter of the work department that blocks the bell-mouthed work department Less than the cylinder bore diameter of valve chamber hypomere.

8. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 7, which is characterized in that the intercommunicating pore (6) it is connected on two valve chamber hypomeres.

9. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 6, which is characterized in that the synchronizing moving Connection structure include the end that the end that is equipped with of connecting rod (9) lower end and the valve core head fixed seat (11) top are equipped with accommodate it is empty Between；For screwing togather the threaded hole bottom of the valve core head (7) in blind hole structure on the valve core head fixed seat (11), blind via bottom shape Into there is the perforation that wears the connecting rod (9), which forms the end accommodation space, and is in the valve core head (7) During to the bell-mouthed sealed condition, which also has the space that end is allowed to move axially setpoint distance.

10. block-resistant type hydraulic support atomizing de-dusting control valve according to claim 5, which is characterized in that the driving group Part includes piston (13), and piston (13) is fixedly connected on connecting rod (9) upper end, and piston (13) is slidably fitted in cylinder sleeve (14), Cylinder sleeve (14) is arranged in valve chamber epimere, and cylinder sleeve (14) outer end is equipped with limit base (15), and limit base (15), which is formed, sets the work Fill in piston cylinder body one end cylinder bottom of (13)；One in described two control liquid imports is located on limit base (15), and be located at Above piston (13)；Another is set by the valve body (1) and valve chamber epimere, and below piston (13)；The valve chamber Barrier (8) is set by the bottom of the valve chamber epimere, and pass through barrier sealing ring (24) formed with valve chamber epimere inner wall it is liquid-tight Envelope connection, valve chamber barrier (8) form the other end cylinder bottom for the piston cylinder body for setting the piston (13).