CN114413039A - Ash-blocking valve for pneumatic conveying material - Google Patents
Ash-blocking valve for pneumatic conveying material Download PDFInfo
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- CN114413039A CN114413039A CN202210110115.0A CN202210110115A CN114413039A CN 114413039 A CN114413039 A CN 114413039A CN 202210110115 A CN202210110115 A CN 202210110115A CN 114413039 A CN114413039 A CN 114413039A
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- side wall
- valve
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- valve core
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 119
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 30
- 239000000428 dust Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
- F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a pneumatic material conveying ash blocking valve which comprises a valve shell, a valve core tank and a support sleeve, wherein the support sleeve is coaxially arranged in the valve shell, the valve core tank penetrates through the support sleeve and is in sliding fit with the support sleeve, a bottle opening of the valve core tank faces the air inlet direction, an air inlet mechanism is arranged on the bottle opening of the valve core tank, and an inner support barrel is fixedly connected to the inner wall of the first end of the valve shell. According to the invention, the air inlet mechanism is matched with the inner support cylinder, and the sealing sleeve is matched with the sealing ring, so that two valves capable of supplying air flow to flow in a single direction are formed, the valves can be automatically opened when air conveying is carried out, and can be automatically closed when air conveying is stopped, so that materials are prevented from flowing back to the air conveying pipeline; the area between the two one-way valves is a buffer area, the two valves can move relatively independently, and when air supply is stopped, even a small amount of materials enter the buffer area, the materials are difficult to enter the air conveying pipeline because the air inlet mechanism seals the inner support barrel.
Description
Technical Field
The invention relates to the technical field of pneumatic transmission. In particular to a pneumatic material conveying ash-blocking valve.
Background
The pneumatic conveying is to convey granular materials by utilizing air flow, has the advantages of simple structure, convenient use, strong flexibility and the like, and has larger development space.
When the air supply equipment is closed or adjusted, the air flow in the material pipeline reversely flows due to a certain pressure difference between the material pipeline and the air supply pipeline, so that the material enters the air delivery pipeline, and the operation of the air supply equipment is influenced; in the prior art, generally, the check valve and the dust stopper prevent materials from entering the gas transmission pipeline, but the existing check valve has poor dust stopping effect and still has dust materials entering the gas transmission pipeline, so that certain inconvenience is brought.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide the pneumatic conveying material ash blocking valve for improving the ash blocking effect.
In order to solve the technical problems, the invention provides the following technical scheme: the pneumatic material conveying ash blocking valve comprises a valve shell, a valve core tank and a support sleeve, wherein the support sleeve is coaxially arranged in the valve shell, the valve core tank penetrates through the support sleeve and is in sliding fit with the support sleeve, a bottle opening of the valve core tank faces the air inlet direction, an air inlet mechanism is arranged on the bottle opening of the valve core tank, an inner support cylinder is fixedly connected to the inner wall of the first end of the valve shell, one end of the air inlet mechanism abuts against the second end of the inner support cylinder and is in sealing fit with the inner support cylinder, an exhaust hole is formed in the side wall of the valve core tank, an exhaust hole channel is formed in the support sleeve and is in fluid communication with the exhaust hole, and an air groove penetrating through the two ends is formed in the side wall of the support sleeve; a sealing ring is fixedly connected to the second end of the valve core tank, a sealing sleeve is fixedly connected to the position, opposite to the sealing ring, of the inner wall of the valve casing, and the outer wall of the sealing ring is in sealing fit with the inner side wall of the sealing sleeve; a pressure relief pipe is communicated with fluid on the side wall of the second end of the valve shell, a gate plate is arranged in the pressure relief pipe, and the gate plate is in driving connection with the side wall of the valve core tank through a linkage assembly; the filter comprises an inner support barrel and is characterized in that a filtering mechanism is arranged in the first end of the inner support barrel, the bottom of the filtering mechanism is in driving connection with an opening and closing assembly, and the end part of the opening and closing assembly is fixedly connected with the side part of a valve element tank.
The pneumatic conveying material ash blocking valve comprises a sealing cover, an inner sealing sleeve, a connecting rod and a sealing plate, wherein the sealing cover is fixedly connected to a bottle opening of a valve core tank, a through hole is formed in the middle of the sealing cover, the connecting rod is connected in the through hole in a sliding mode, a first end of the connecting rod is fixedly connected with a side wall of the sealing plate, the other side of the sealing plate abuts against a second end of the inner supporting tube, a second end of the connecting rod is fixedly connected with a side wall of the inner sealing sleeve, a circumferential side wall of the inner sealing sleeve is matched with the inner wall of the bottle opening of the valve core tank in a sliding sealing mode, an air vent is formed in the side wall of the inner sealing sleeve, an air inlet hole is formed in the side wall of the bottle opening of the valve core tank, the circumferential side wall of the inner sealing sleeve is attached to the air inlet hole, a spring is sleeved on the connecting rod, and one end of the spring is overlapped to the side wall of the sealing cover, the other end of the spring is lapped on the side wall of the sealing plate.
According to the pneumatic material conveying ash blocking valve, the outer wall of the valve core tank is fixedly connected with the limiting block, the side wall of the limiting block is in lap joint with the second end of the supporting sleeve, the second end of the supporting sleeve is fixedly connected with the tension spring, and the other end of the tension spring is fixedly connected with the side wall of the limiting block; the first end of the exhaust duct penetrates through the inner side wall of the support sleeve and is communicated with the exhaust hole fluid, and the second end of the exhaust duct penetrates through the second end of the support sleeve.
In the pneumatic material conveying ash blocking valve, the pipe wall of the valve casing is internally provided with a sliding groove, the sliding groove extends into the pressure relief pipe, and the gate plate is in sliding fit in the sliding groove; the linkage subassembly includes slide bar and montant, the second end of slide bar is followed the length direction fixed connection of sliding tray is in on the first end of flashboard, the perpendicular fixed connection of second end of montant is in on the first end of slide bar, the first end of montant with the lateral wall fixed connection of valve core jar.
In the pneumatic material conveying ash blocking valve, the cross section of the inner hole of the inner support cylinder is rectangular; the filter mechanism comprises two filter plates which are symmetrically arranged in the inner support cylinder, the two filter plates have the same structure, one side of the top and one side of the bottom of each filter plate are fixedly connected with second pin shafts, the bottom of the other side of each filter plate is fixedly connected with a first pin shaft, shaft holes are formed in both sides of the inner top wall and both sides of the inner bottom wall of the inner support cylinder, the second pin shaft of one filter plate is rotationally matched in the corresponding shaft hole in one side, and the second pin shaft of the other filter plate is rotationally matched in the corresponding shaft hole in the other side; a groove is formed in the inner bottom wall of the inner support cylinder along the length direction of the inner bottom wall, a sliding plate is matched in the groove in a sliding mode, a sliding groove is formed in the sliding plate and is perpendicular to the length direction of the groove, the first pin shafts at the bottoms of the two filter plates are matched in the sliding groove in a sliding mode, a linkage rod is fixedly connected to the side wall of the sliding plate, which is far away from the first end of the valve shell, and the other end of the linkage rod is fixedly connected with the side wall of the valve core tank; the inner side wall of the inner support cylinder is fixedly connected with a sealing ring along the circumferential direction, the side wall of the filter plate close to the first end of the valve casing is tightly pressed on the side wall of the sealing ring, and the opposite surfaces of the two filter plates are mutually attached tightly and are in sealing fit.
The technical scheme of the invention achieves the following beneficial technical effects:
1. the air inlet mechanism is matched with the inner support cylinder, and the sealing sleeve is matched with the sealing ring to form two valves capable of supplying air flow to flow in a single direction, so that the valves can be automatically opened when air is conveyed and automatically closed when air conveying is stopped, and materials are prevented from flowing back to the air conveying pipeline; the area between two check valves is the buffering area, and two valves can relatively independent move, when stopping the air feed, even a small amount of material enters into the buffering area, because the mechanism of admitting air has blocked interior support section of thick bamboo, the material also is difficult to get into in the gas transmission pipeline again to the effectual material that prevents gets into the gas transmission pipeline.
2. By arranging the valve core tank, when the valve core tank is used for normal gas transmission, the internal gas pressure of the valve core tank is the same as the gas transmission pressure, and certain pressure is stored, when the gas transmission equipment is closed, certain gas with pressure can be stored in the valve core tank, the internal pressure of the valve core tank can be input into the buffer area through the exhaust duct, the pressure in the buffer area is improved, on one hand, the sealing plate is pressed more tightly, the sealing effect is improved, on the other hand, when the gas pressure in the buffer area is improved to a certain degree, the sealing ring and the sealing sleeve are pushed to be separated from sealing, and the flowing gas flow can blow dust in the buffer area and dust-like materials at the joint surface of the sealing ring and the sealing sleeve; due to the action of the tension spring, when the sealing ring is reset, the pressure in the buffer area is larger than the pressure close to the conveying pipe side, so that dust is prevented from entering the buffer area.
3. When air conveying, the air current must move to the place that the resistance is little, through setting up pressure release pipe and flashboard, can be stopping transport gas, and the case jar when reseing, drives the flashboard motion and opens the pressure release pipe, makes the pressure in the defeated material pipeline pass through the quick release of pressure release pipe to avoided reverse air current to drive dirt form material entering buffer area.
4. Through setting up filtering mechanism, when carrying out the gas transmission, opening that filtering mechanism can be automatic can utilize the air current that advances to drive the impurity in the gas transmission pipeline and advance and blow off the gas transmission pipeline to reduce the resistance that gas transmission pipeline air current advanced, when closing the gas transmission, filtering mechanism can reset in step along with closing of valve core jar, plays the purpose of filter dirt form material, prevents thoroughly that dirt form material from getting into in the gas transmission pipeline.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic top cross-sectional view of the filter mechanism of the present invention;
FIG. 4 is a schematic top view of a filter plate according to the present invention;
FIG. 5 is a schematic view of an initially open elevational cross-sectional configuration of the present invention;
fig. 6 is a schematic view of the fully open front cross-sectional configuration of the present invention.
The reference numbers in the figures denote: 1-valve casing; 2-internal support cylinder; 3-a filtering mechanism; 301-trace; 302-sealing ring; 303-a filter plate; 304-a sled; 305-a chute; 306-a first pin; 307-a second pin; 4-a valve core can; 5-a sealing ring; 6-an air inlet mechanism; 601-sealing plate; 602-a connecting rod; 603-a spring; 604-a sealing cover; 605-inner sealing sleeve; 606-air intake; 7-pressure relief pipe; 8-a gate plate; 801-a slide bar; 802-vertical bar; 9-supporting sleeve; 10-a limiting block; 11-a vent channel; 12-a tension spring; 13-a venting duct; 14-sealing sleeve.
Detailed Description
Referring to fig. 1, the pneumatic material conveying ash blocking valve in the embodiment includes a valve housing 1, a valve core can 4 and a support sleeve 9, the support sleeve 9 is coaxially installed in the valve housing 1, the valve core can 4 passes through the support sleeve 9 and is in sliding fit with the support sleeve 9, the bottle mouth of the valve core tank 4 faces to the air inlet direction, an air inlet mechanism 6 is arranged on the bottle mouth of the valve core tank 4, the inner support barrel 2 is fixedly connected on the inner wall of the first end of the valve casing 1, one end of the air inlet mechanism 6 is propped against the second end of the inner support barrel 2 and is in sealing fit with the inner support barrel 2, the side wall of the valve core can 4 is provided with an exhaust hole, the supporting sleeve 9 is provided with an exhaust hole channel 13, the exhaust duct 13 is communicated with the exhaust hole fluid, and the side wall of the support sleeve 9 is provided with a vent groove 11 penetrating through the two ends; a sealing ring 5 is fixedly connected to the second end of the valve core tank 4, a sealing sleeve 14 is fixedly connected to the position, opposite to the sealing ring 5, on the inner wall of the valve casing 1, the outer wall of the sealing ring 5 is in sealing fit with the inner side wall of the sealing sleeve 14, an air inlet mechanism 6 is arranged to be matched with the inner support cylinder 2, and the sealing sleeve 14 is matched with the sealing ring 5, so that two valves capable of supplying air flow to flow in a single direction are formed, the valves can be automatically opened when air is conveyed, and can be automatically closed when air conveying is stopped, and materials are prevented from flowing back to an air conveying pipeline; the area between the two one-way valves is a buffer area, and the two valves can move relatively independently, so that when the air supply is stopped, even a small amount of materials enter the buffer area, the materials are difficult to enter the air delivery pipeline again because the air inlet mechanism 6 blocks the inner support barrel 2, and the materials are effectively prevented from entering the air delivery pipeline; the fluid on the second end side wall of the valve shell 1 is communicated with a pressure relief pipe 7, a flashboard 8 is arranged in the pressure relief pipe 7, the flashboard 8 is in driving connection with the side wall of the valve core tank 4 through a linkage assembly, during pneumatic conveying, airflow inevitably moves to a place with small resistance, and by arranging the pressure relief pipe 7 and the flashboard 8, the conveying of the air can be stopped, and the valve core tank 4 is reset, and simultaneously the flashboard 8 is driven to move to open the pressure relief pipe 7, so that the pressure in a conveying pipeline is quickly released through the pressure relief pipe 7, and dust-shaped materials are prevented from being driven to enter a buffer area by reverse airflow; the filter mechanism 3 is arranged in the first end of the inner support barrel 2, the bottom of the filter mechanism 3 is in driving connection with an opening and closing assembly, and the end of the opening and closing assembly is fixedly connected with the side part of the valve element tank 4.
A limiting block 10 is fixedly connected to the outer wall of the valve core tank 4, the side wall of the limiting block 10 is in lap joint with the second end of the supporting sleeve 9, a tension spring 12 is fixedly connected to the second end of the supporting sleeve 9, and the other end of the tension spring 12 is fixedly connected with the side wall of the limiting block 10; the first end of the exhaust duct 13 penetrates through the inner side wall of the support sleeve 9 and is in fluid communication with the exhaust hole, the second end of the exhaust duct 13 penetrates out of the second end of the support sleeve 9, and by arranging the valve core tank 4, the valve core tank 4 can perform normal gas transmission, the internal air pressure is the same as the air conveying pressure, certain pressure is stored, when the air conveying equipment is closed, certain pressurized air can be stored in the valve core tank 4, the internal pressure of the air inlet channel 13 is input into the buffer area, and the pressure in the buffer area is increased, so that the sealing plate 601 is pressed more tightly to improve the sealing effect, and on the other hand, when the air pressure in the buffer area is increased to a certain degree, the sealing ring 5 and the sealing sleeve 14 are pushed to be separated from sealing, and flowing air flow can blow dust in the buffer area and dust-shaped materials at the joint surface of the sealing ring 5 and the sealing sleeve 14; due to the action of the tension spring 12, when the sealing ring 5 is reset, the pressure in the buffer area is higher than the pressure close to the conveying pipe side, so that dust is prevented from entering the buffer area.
A sliding groove is formed in the pipe wall of the valve shell 1, the sliding groove extends into the pressure relief pipe 7, and the gate plate 8 is in sliding fit in the sliding groove; the linkage subassembly includes slide bar 801 and montant 802, the second end of slide bar 801 is followed the length direction fixed connection of sliding tray is in on the first end of flashboard 8, the perpendicular fixed connection of second end of montant 802 is in on the first end of slide bar 801, the first end of montant 802 with the lateral wall fixed connection of valve core jar 4.
As shown in fig. 2, the air intake mechanism 6 includes a sealing cover 604, an inner sealing sleeve 605, a connecting rod 602 and a sealing plate 601, the sealing cover 604 is fixedly connected to the mouth of the valve core can 4, a through hole is formed in the middle of the sealing cover 604, the connecting rod 602 is slidably connected in the through hole, a first end of the connecting rod 602 is fixedly connected to the side wall of the sealing plate 601, the other side of the sealing plate 601 is abutted against the second end of the inner support tube 2, a second end of the connecting rod 602 is fixedly connected to the side wall of the inner sealing sleeve 605, the circumferential side wall of the inner sealing sleeve 605 is in sliding sealing fit with the inner wall of the mouth of the valve core can 4, a vent hole is formed in the side wall of the inner sealing sleeve 605, 606 is formed in the side wall of the mouth of the valve core can 4, and the circumferential side wall of the inner sealing sleeve 605 is attached to the air intake hole 606, the connecting rod 602 is sleeved with a spring 603, one end of the spring 603 is lapped on the side wall of the sealing cover 604, and the other end of the spring 603 is lapped on the side wall of the sealing plate 601.
As shown in fig. 1, 3 and 4, the cross-sectional shape of the inner bore of the inner support cylinder 2 is rectangular; the filter mechanism 3 comprises two filter plates 303 symmetrically arranged in the inner support cylinder 2, the two filter plates 303 have the same structure, one side of the top and one side of the bottom of each filter plate 303 are fixedly connected with second pin shafts 307, the bottom of the other side of each filter plate 303 is fixedly connected with first pin shafts 306, shaft holes are formed in both sides of the inner top wall and both sides of the inner bottom wall of the inner support cylinder 2, the second pin shaft 307 of one filter plate 303 is rotationally matched in the corresponding shaft hole in one side, and the second pin shaft 307 of the other filter plate 303 is rotationally matched in the corresponding shaft hole in the other side; a groove is formed in the inner bottom wall of the inner support tube 2 along the length direction of the inner bottom wall, a sliding plate 304 is in sliding fit in the groove, a sliding groove 305 is formed in the sliding plate 304 perpendicular to the length direction of the groove, the first pin shafts 306 at the bottoms of the two filter plates 303 are in sliding fit in the sliding groove 305, a linkage rod 301 is fixedly connected to the side wall of the sliding plate 304, which is far away from the first end of the valve housing 1, and the other end of the linkage rod 301 is fixedly connected with the side wall of the valve core can 4; support and be close to on the inside wall of a section of thick bamboo 2 along its circumference fixedly connected with sealing washer 302, filter 303 is close to the lateral wall of the first end of valve casing 1 compresses tightly on the lateral wall of sealing washer 302, two the opposite face of filter 303 pastes closely each other and sealed cooperation, through setting up filter mechanism 3, when carrying out the gas transmission, filter mechanism 3 can be automatic opens, can utilize the air current that advances to drive the impurity in the gas transmission pipeline and advance and blow off the gas transmission pipeline to reduce the resistance that gas transmission pipeline air current advances, when closing the gas transmission, filter mechanism 3 can be along with closing of valve core jar 4 and synchronous reset, play the mesh of filter dirt form material, thoroughly prevent that dirt form material from getting into in the gas transmission pipeline.
The working principle is as follows: the ash blocking valve is arranged on the gas transmission pipeline, the two ends of the valve shell 1 are ensured to be fixed with the gas transmission pipeline in a sealing way, the pressure relief pipe 7 is connected with the external atmospheric pressure, and a filter can be arranged on the pressure relief pipe 7 to prevent materials from being blown out;
after the gas transmission equipment is started, the gas flow advances through the gas transmission pipeline, as shown in fig. 2 and 5, firstly, the gas enters the inner support cylinder 2 and the sealing plate 601, the sealing plate 601 is pushed to overcome the elasticity of the spring 603, the connecting rod 602 retracts into the bottle mouth of the valve core tank 4, and synchronously drives the inner sealing sleeve 605 to move, after the inner sealing sleeve 605 moves inwards, the gas inlet hole 606 is exposed, the pressure enters through the gas inlet hole 606 and enters the valve core tank 4 through the vent hole on the inner sealing sleeve 605, when the pressure of the buffer area is gradually increased, as shown in fig. 6, the sealing ring 5 is pushed to move, and simultaneously the valve core tank 4 moves along with the inner sealing ring 5 and the sealing sleeve 14 are separated from sealing, when the valve core tank 4 moves, the sliding rod 801 and the vertical rod 802 are driven to move, the flashboard 8 is pushed to block the vent 7, and the linkage rod 301 is synchronously driven to pull the sliding plate 304 to move, the sliding plate 304 pulls the two first pin shafts 306, the two sliding plates 304 are respectively rotated and opened around the corresponding second pin shaft 307, and the airflow output by the gas transmission equipment enters the material transmission pipeline through the ash blocking valve; in order to ensure that the above steps can be smoothly carried out, the elastic force of the spring 603 is smaller than the tension of the tension spring 12;
when the gas transmission equipment is closed, pressure difference exists at two ends of the ash blocking valve, the pressure in the ash transmission pipeline is relatively high, the airflow reversely moves, the sealing plate 601 resets under the dual functions of the pressure difference and the spring 603 and is propped against the second end of the inner support cylinder 2 to complete sealing, the sealing ring 5 and the valve core tank 4 reset under the functions of the tension spring 12 and the pressure difference until the sealing ring 5 is attached to the sealing sleeve 14 again, after the valve core tank 4 moves, the linkage rod 301 can be synchronously driven to reset, the sliding plate 304 is pushed to move, the two filter plates 303 are pushed to close, the sliding rod 801 and the vertical rod 802 are pulled simultaneously to open the flashboard 8, the pressure in the ash transmission pipeline is released through the pressure relief pipe 7, after the valve core tank 4 resets, the exhaust hole coincides with the exhaust hole 13, pressurized gas in the valve core tank 4 enters the buffer area through the exhaust hole 13, so that the pressure in the buffer area is improved, and when the pressure is high to a certain degree, the sealing ring 5 is pushed to move, gas is exhausted, and when the valve core tank 4 is completely reset, the connecting rod 602 still has the amount of free axial movement in the front-back direction, so that the sealing plate 601 is still in a state of sealing fit with the inner support cylinder 2 when the gas is exhausted;
when the sealing plate 601 resets, the inner sealing sleeve 605 can be synchronously driven to reset, so that the circumferential wall surface of the inner sealing sleeve 605 is utilized to seal the air inlet 606, and leakage of pressurized air is avoided.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (5)
1. The pneumatic material conveying ash blocking valve is characterized by comprising a valve shell (1), a valve core tank (4) and a support sleeve (9), wherein the support sleeve (9) is coaxially installed in the valve shell (1), the valve core tank (4) penetrates through the support sleeve (9) and is in sliding fit with the support sleeve (9), a bottle opening of the valve core tank (4) faces to the air inlet direction, an air inlet mechanism (6) is installed on the bottle opening of the valve core tank (4), an inner support barrel (2) is fixedly connected to the inner wall of the first end of the valve shell (1), one end of the air inlet mechanism (6) abuts against the second end of the inner support barrel (2) and is in sealing fit with the inner support barrel (2), an exhaust hole is formed in the side wall of the valve core tank (4), an exhaust hole channel (13) is formed in the support sleeve (9), and the exhaust hole channel (13) is in fluid communication with the exhaust hole, the side wall of the support sleeve (9) is provided with a vent groove (11) which runs through the two ends; a sealing ring (5) is fixedly connected to the second end of the valve core tank (4), a sealing sleeve (14) is fixedly connected to the inner wall of the valve casing (1) opposite to the sealing ring (5), and the outer wall of the sealing ring (5) is in sealing fit with the inner side wall of the sealing sleeve (14); a pressure relief pipe (7) is communicated with fluid on the side wall of the second end of the valve casing (1), a gate plate (8) is arranged in the pressure relief pipe (7), and the gate plate (8) is in driving connection with the side wall of the valve core tank (4) through a linkage assembly; the filter mechanism (3) is arranged in the first end of the inner support barrel (2), the bottom of the filter mechanism (3) is in driving connection with an opening and closing assembly, and the end of the opening and closing assembly is fixedly connected with the side part of the valve element tank (4).
2. The pneumatic conveying material ash blocking valve according to claim 1, wherein the air inlet mechanism (6) comprises a sealing cover (604), an inner sealing sleeve (605), a connecting rod (602) and a sealing plate (601), the sealing cover (604) is fixedly connected to a bottle mouth of the valve core tank (4), a through hole is formed in the middle of the sealing cover (604), the connecting rod (602) is slidably connected to the through hole, a first end of the connecting rod (602) is fixedly connected to a side wall of the sealing plate (601), the other side of the sealing plate (601) abuts against a second end of the inner supporting cylinder (2), a second end of the connecting rod (602) is fixedly connected to a side wall of the inner sealing sleeve (605), a circumferential side wall of the inner sealing sleeve (605) is in sliding sealing fit with an inner wall of the bottle mouth of the valve core tank (4), and a vent hole is formed in the side wall of the inner sealing sleeve (605), an air inlet hole (606) is formed in the side wall of a bottle opening of the valve element tank (4), the circumferential side wall of the inner sealing sleeve (605) is attached to the air inlet hole (606), a spring (603) is sleeved on the connecting rod (602), one end of the spring (603) is overlapped on the side wall of the sealing cover (604), and the other end of the spring (603) is overlapped on the side wall of the sealing plate (601).
3. The pneumatic conveying material ash blocking valve according to claim 1, wherein a limiting block (10) is fixedly connected to the outer wall of the valve core tank (4), the side wall of the limiting block (10) is overlapped with the second end of the supporting sleeve (9), a tension spring (12) is fixedly connected to the second end of the supporting sleeve (9), and the other end of the tension spring (12) is fixedly connected to the side wall of the limiting block (10); the first end of the exhaust duct (13) penetrates through the inner side wall of the support sleeve (9) and is communicated with the exhaust hole fluid, and the second end of the exhaust duct (13) penetrates through the second end of the support sleeve (9).
4. The pneumatic conveying material ash blocking valve according to claim 1, wherein a sliding groove is formed in the pipe wall of the valve casing (1), the sliding groove extends into the pressure relief pipe (7), and the gate plate (8) is in sliding fit in the sliding groove; the linkage subassembly includes slide bar (801) and montant (802), the second end of slide bar (801) is followed the length direction fixed connection of sliding tray is in on the first end of flashboard (8), the perpendicular fixed connection of second end of montant (802) is in on the first end of slide bar (801), the first end of montant (802) with the lateral wall fixed connection of valve core jar (4).
5. The pneumatic conveying material ash blocking valve according to claim 1, characterized in that the cross section of the inner bore of the inner support cylinder (2) is rectangular; the filter mechanism (3) comprises two filter plates (303) symmetrically arranged in the inner support cylinder (2), the two filter plates (303) have the same structure, one side of the top and one side of the bottom of each filter plate (303) are fixedly connected with second pin shafts (307), the bottom of the other side of each filter plate (303) is fixedly connected with first pin shafts (306), shaft holes are formed in both sides of the inner top wall and both sides of the inner bottom wall of the inner support cylinder (2), the second pin shaft (307) of one filter plate (303) is rotationally matched in the corresponding shaft hole in one side, and the second pin shaft (307) of the other filter plate (303) is rotationally matched in the corresponding shaft hole in the other side; a groove is formed in the inner bottom wall of the inner support tube (2) along the length direction of the inner bottom wall, a sliding plate (304) is in sliding fit in the groove, a sliding groove (305) is formed in the sliding plate (304) and perpendicular to the length direction of the groove, first pin shafts (306) at the bottoms of the two filter plates (303) are in sliding fit in the sliding groove (305), a linkage rod (301) is fixedly connected to the side wall of the sliding plate (304) far away from the first end of the valve casing (1), and the other end of the linkage rod (301) is fixedly connected with the side wall of the valve core tank (4); support along its circumference fixedly connected with sealing washer (302) on the inside wall of a section of thick bamboo (2), filter (303) are close to the lateral wall of valve casing (1) first end compresses tightly on the lateral wall of sealing washer (302), two the opposite face of filter (303) pastes closely each other and sealed cooperation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210110115.0A CN114413039B (en) | 2022-01-29 | 2022-01-29 | Pneumatic material ash-blocking valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210110115.0A CN114413039B (en) | 2022-01-29 | 2022-01-29 | Pneumatic material ash-blocking valve |
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| CN114413039A true CN114413039A (en) | 2022-04-29 |
| CN114413039B CN114413039B (en) | 2024-03-29 |
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| CN115402866A (en) * | 2022-11-02 | 2022-11-29 | 南通华喜纺织品有限公司 | Cotton yarn classified placing rack |
| CN117284774A (en) * | 2023-10-09 | 2023-12-26 | 无锡市伍豪机械设备有限公司 | Energy-saving pneumatic conveying valve |
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| Publication number | Publication date |
|---|---|
| CN114413039B (en) | 2024-03-29 |
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