CN110513510B - Automatic back flushing type electrohydraulic reversing valve for hydraulic support of thin coal seam - Google Patents
Automatic back flushing type electrohydraulic reversing valve for hydraulic support of thin coal seam Download PDFInfo
- Publication number
- CN110513510B CN110513510B CN201910903553.0A CN201910903553A CN110513510B CN 110513510 B CN110513510 B CN 110513510B CN 201910903553 A CN201910903553 A CN 201910903553A CN 110513510 B CN110513510 B CN 110513510B
- Authority
- CN
- China
- Prior art keywords
- cavity
- valve
- liquid
- back flushing
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 60
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 119
- 230000000712 assembly Effects 0.000 claims abstract description 17
- 238000000429 assembly Methods 0.000 claims abstract description 17
- 239000008358 core component Substances 0.000 claims description 5
- 239000000306 component Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
- E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910903553.0A CN110513510B (en) | 2019-09-24 | 2019-09-24 | Automatic back flushing type electrohydraulic reversing valve for hydraulic support of thin coal seam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910903553.0A CN110513510B (en) | 2019-09-24 | 2019-09-24 | Automatic back flushing type electrohydraulic reversing valve for hydraulic support of thin coal seam |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110513510A CN110513510A (en) | 2019-11-29 |
CN110513510B true CN110513510B (en) | 2024-04-30 |
Family
ID=68633560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910903553.0A Active CN110513510B (en) | 2019-09-24 | 2019-09-24 | Automatic back flushing type electrohydraulic reversing valve for hydraulic support of thin coal seam |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110513510B (en) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB406688A (en) * | 1932-08-02 | 1934-03-02 | Herman Alexander Brassert | Improvements in or relating to screening or filtering apparatus |
US4469594A (en) * | 1982-11-12 | 1984-09-04 | Harnischfeger Corporation | High pressure hydraulic system and self-cleaning filter assembly therefor |
JPH10339120A (en) * | 1997-05-30 | 1998-12-22 | Man B & W Diesel As | Hydraulic cleaning method, for hydraulic system for cylinder in multi-cylinder internal combustion engine and hydraulic system thereof |
JP2003342976A (en) * | 2002-05-29 | 2003-12-03 | Shin Caterpillar Mitsubishi Ltd | Fluid purifying apparatus of fluid pressure circuit |
JP2007268430A (en) * | 2006-03-31 | 2007-10-18 | Nachi Fujikoshi Corp | Automatic backwashing filtration apparatus |
CN101629589A (en) * | 2009-06-01 | 2010-01-20 | 北京天地玛珂电液控制***有限公司 | Integral plugged electric-hydraulic control reversing valve with classified filtering function |
CN102072224A (en) * | 2011-01-28 | 2011-05-25 | 浙江中煤矿业有限公司 | High and low-pressure backwashing filter device for hydraulic bracket |
CN103277540A (en) * | 2013-06-24 | 2013-09-04 | 山西平阳广日机电有限公司 | Mining intrinsically safe electric hydraulic control reversing valve |
CN103285646A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Automatic backwashing filter |
CN203363333U (en) * | 2013-06-24 | 2013-12-25 | 山西平阳广日机电有限公司 | Automatic backwash high-pressure filtering device valve body |
CN103835733A (en) * | 2014-03-25 | 2014-06-04 | 郑州煤机液压电控有限公司 | Back flushing filter for underground coal mine hydraulic support |
CN108278239A (en) * | 2018-04-28 | 2018-07-13 | 北京博望盛达商贸有限公司 | Effectively reduce the Full automatic bus lift frame hydraulic system of return oil pressure |
CN109395449A (en) * | 2018-12-13 | 2019-03-01 | ***高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
CN210950035U (en) * | 2019-09-24 | 2020-07-07 | 郑州煤机液压电控有限公司 | Automatic back-flushing type electro-hydraulic reversing valve for thin coal seam hydraulic support |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101658741B (en) * | 2009-09-28 | 2011-05-04 | 郑业 | Reflow backwashing mechanism for automatic filtration of fluid |
-
2019
- 2019-09-24 CN CN201910903553.0A patent/CN110513510B/en active Active
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB406688A (en) * | 1932-08-02 | 1934-03-02 | Herman Alexander Brassert | Improvements in or relating to screening or filtering apparatus |
US4469594A (en) * | 1982-11-12 | 1984-09-04 | Harnischfeger Corporation | High pressure hydraulic system and self-cleaning filter assembly therefor |
JPH10339120A (en) * | 1997-05-30 | 1998-12-22 | Man B & W Diesel As | Hydraulic cleaning method, for hydraulic system for cylinder in multi-cylinder internal combustion engine and hydraulic system thereof |
JP2003342976A (en) * | 2002-05-29 | 2003-12-03 | Shin Caterpillar Mitsubishi Ltd | Fluid purifying apparatus of fluid pressure circuit |
JP2007268430A (en) * | 2006-03-31 | 2007-10-18 | Nachi Fujikoshi Corp | Automatic backwashing filtration apparatus |
CN101629589A (en) * | 2009-06-01 | 2010-01-20 | 北京天地玛珂电液控制***有限公司 | Integral plugged electric-hydraulic control reversing valve with classified filtering function |
CN102072224A (en) * | 2011-01-28 | 2011-05-25 | 浙江中煤矿业有限公司 | High and low-pressure backwashing filter device for hydraulic bracket |
CN103277540A (en) * | 2013-06-24 | 2013-09-04 | 山西平阳广日机电有限公司 | Mining intrinsically safe electric hydraulic control reversing valve |
CN103285646A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Automatic backwashing filter |
CN203363333U (en) * | 2013-06-24 | 2013-12-25 | 山西平阳广日机电有限公司 | Automatic backwash high-pressure filtering device valve body |
CN103835733A (en) * | 2014-03-25 | 2014-06-04 | 郑州煤机液压电控有限公司 | Back flushing filter for underground coal mine hydraulic support |
CN108278239A (en) * | 2018-04-28 | 2018-07-13 | 北京博望盛达商贸有限公司 | Effectively reduce the Full automatic bus lift frame hydraulic system of return oil pressure |
CN109395449A (en) * | 2018-12-13 | 2019-03-01 | ***高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
CN210950035U (en) * | 2019-09-24 | 2020-07-07 | 郑州煤机液压电控有限公司 | Automatic back-flushing type electro-hydraulic reversing valve for thin coal seam hydraulic support |
Non-Patent Citations (1)
Title |
---|
常宝瑞 ; .液压支架液压***的优化设计.机电工程技术.(12),215-217. * |
Also Published As
Publication number | Publication date |
---|---|
CN110513510A (en) | 2019-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20201123 Address after: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Applicant after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant after: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220714 Address after: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: No.167, 9th Street, Zhengzhou Economic Development Zone, Henan Province, 450016 Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant after: Zhengzhou Hengda Intelligent Control Technology Co.,Ltd. Address before: 450016 No.167, 9th Street, Zhengzhou area (Jingkai), Zhengzhou pilot Free Trade Zone, Henan Province Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
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GR01 | Patent grant | ||
GR01 | Patent grant |