CN111056154A - Hydraulic coal bunker arch breaking device - Google Patents
Hydraulic coal bunker arch breaking device Download PDFInfo
- Publication number
- CN111056154A CN111056154A CN202010086277.6A CN202010086277A CN111056154A CN 111056154 A CN111056154 A CN 111056154A CN 202010086277 A CN202010086277 A CN 202010086277A CN 111056154 A CN111056154 A CN 111056154A
- Authority
- CN
- China
- Prior art keywords
- spray pipe
- coal
- coal bunker
- cover plate
- arch breaking
- Prior art date
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- 239000003245 coal Substances 0.000 title claims abstract description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000007921 spray Substances 0.000 claims abstract description 68
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims description 49
- 239000008236 heating water Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 6
- 230000007774 longterm Effects 0.000 abstract description 3
- 241000273930 Brevoortia tyrannus Species 0.000 description 43
- 239000003818 cinder Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses a hydraulic coal bunker arch breaking device which comprises a mounting seat, wherein the mounting seat comprises a top plate and a mounting seat side wall connected below one side of the top plate; the top plate is downwards connected with a spring, the lower end of the spring is connected with a cover plate, and a water spray pipe with an upward opening is arranged below the cover plate; an extension rod of the electric push rod penetrates through the side wall of the mounting seat in a sliding manner, the end part of the extension rod is connected with a power disc, and the top of the water spray pipe penetrates through a mounting hole of the power disc; the water spray pipe is provided with a water spray position and a storage position under the driving of the electric push rod and the power disc, when water spray is not needed, the water spray pipe can return to the lower part of the cover plate, and the top end of the water spray pipe is in pressure joint with the cover plate, so that the phenomenon that coal in a coal bunker enters the water spray pipe in a storage state is well avoided, the water spray pipe can be kept from being blocked in long-term use, the arch breaking capacity is high, and the arch breaking device is suitable for being used as a regular arch breaking device.
Description
Technical Field
The invention relates to the technical field of underground coal transportation.
Background
The coal bunker is a main loading and storing link in a mine production system, and plays an important role in ensuring the quality of coal products, adjusting the unbalanced state of production and transportation and ensuring the continuous and stable production of mines.
A conveyor (such as a scraper conveyor) is arranged below the coal bunker. When transferring coal, the coal in the bunker falls down onto the conveyor. Almost all mining area coal bunkers of mines have the problem of bin blockage to different degrees in the production and use process and need to be frequently treated, so that the effect of the coal bunkers cannot be fully exerted, and the normal production is seriously influenced. The most common form of blockage of a coal bunker is a coal bunker arch.
The temperature of coal is lower in winter, and the coal containing moisture has higher viscosity in winter, so that the phenomenon of arching and blocking at a coal bunker is more easily caused.
In response to the blockage of the coal bunker due to arching, the prior art has the following methods:
1. and (4) manually breaking the arch.
After the coal bunker is arched, a worker inserts a tool into the blockage position in the bunker to poke the blockage position manually, so that the coal arch falls. The defects of the arch breaking mode are as follows: the labor intensity of workers is high, people need to be on duty near the coal bunker, and the requirement that the workers are not on duty at the coal bunker can not be met.
2. Blasting and vibrating.
And blasting and vibrating to break the arch at the blocking arch. Before blasting, gas inspection is carried out according to the requirements of safety regulations, and the explosive quantity is calculated.
The defects of the arch breaking mode are as follows: the safety is poor, the preparation working time is long, the phenomenon of funnel collapse or cabin damage is caused occasionally, and a plurality of unsafe factors exist.
3. And breaking the arch of the air cannon.
The air cannon arch breaking mainly utilizes air flow generated by suddenly releasing compressed air to impact and vibrate materials so as to loosen and fall the materials. However, the arch breaking capacity of the air cannon is limited, and the effect of the method is not obvious for some serious bin blockage accidents. In particular, for coal with high viscosity, sometimes only one hole can be blown out of the coal arch, and the arch can not be broken.
4. A hyperbolic coal bunker is adopted.
The method is suitable for newly-built coal bunkers and cannot meet the arch breaking requirements of the existing coal bunkers. In addition, the hyperbolic coal bunker cannot avoid the phenomenon of coal bunker arching, and a technical means for breaking the coal bunker is required.
5. And breaking the arch by high-pressure water.
The high-pressure water arch breaking has a good arch breaking effect. The defects are as follows: if high-pressure water arch breaking is taken as a frequent arch breaking means, the high-pressure water pipe is not taken out of the coal bunker after arch breaking. The outlet of the high-pressure water pipe faces upward and can be arched, so that loose coal and coal dust can easily enter the high-pressure water pipe in the normal use and coal falling process of the coal bunker, and the high-pressure water pipe is blocked. Therefore, high-pressure water arch breaking is not suitable as a frequent arch breaking means, and the high-pressure water arch breaking is rarely used in practice.
Disclosure of Invention
The invention aims to provide a hydraulic coal bunker arch breaking device which is strong in arch breaking capacity and capable of preventing a high-pressure water pipe from being blocked.
In order to achieve the purpose, the hydraulic coal bunker arch breaking device comprises a mounting seat, wherein the mounting seat comprises a top plate and a mounting seat side wall connected below one side of the top plate, and the mounting seat side wall is used for being mounted at the bottom of the coal bunker side wall through a mounting frame;
the top plate is downwards connected with at least one spring, the lower end of the spring is connected with a cover plate made of rubber or plastic, a water spraying pipe with an upward opening is arranged below the cover plate, the water spraying pipe is made of rubber, and the cover plate is used for preventing coal from falling into the water spraying pipe;
the spray pipe extends out of the mounting seat from the lower part of the mounting seat and is connected with the side wall of the coal bunker and an external water source, and a high-pressure water pump is arranged on the spray pipe outside the side wall of the coal bunker;
the mounting frame is connected with an electric push rod, an extension rod of the electric push rod penetrates through the side wall of the mounting seat in a sliding mode, the end portion of the extension rod is connected with a power disc, the power disc is provided with a through mounting hole, and the top of the water spray pipe penetrates through the mounting hole of the power disc; an extension rod of the electric push rod faces the middle part of the horizontal section of the coal bunker;
the water spraying pipe is driven by the electric push rod and the power disc to have a water spraying position and a storage position; the top end of the spray pipe at the water spraying position extends out of the cover plate, and the top end of the spray pipe at the storage position is in compression joint with the cover plate;
when the spray pipe is positioned at the water spraying position, the bottom end of the cover plate is 0.5-1.5 cm lower than the top end of the spray pipe under the elastic force of the spring.
And three layers of steel wire mesh sleeves are embedded in the pipe wall of the water spray pipe.
A heating water tank is connected in series on a spray pipe at the water inlet of the high-pressure water pump, an electric heater is arranged in the heating water tank, and the electric heater is connected with an external power supply and is provided with a switch; the heating water tank is used for heating water, and then the viscosity of the coal body at the arch formation position is reduced through the hot water.
The roof beyond the mount pad lateral wall is connected with the coal curtain downwards, and the coal curtain includes the separation blade of two above adjacent settings, and the separation blade is made by rubber or plastics, and the top of each separation blade is fixed connection respectively on the roof of mount pad.
The top of the spray pipe is connected with a tray made of rubber, and the top surface of the tray is flush with the top end of the spray pipe.
The top plate shields the coal from falling from the upper part. The invention utilizes the electric push rod to enable the water spraying pipe to have a water spraying position and a storage position, when water spraying is not needed, the water spraying pipe can return to the lower part of the cover plate, and the top end of the water spraying pipe is in pressure joint with the cover plate, thereby well avoiding the phenomenon that coal in a coal bunker enters the water spraying pipe in a storage state, ensuring that the water spraying pipe can not be blocked in long-term use, having strong arch breaking capability and being suitable for being used as a frequent arch breaking device.
When the spray pipe is positioned at a water spraying position, the bottom end of the cover plate is lower than the top end of the spray pipe by 0.5-1.5 cm under the elastic action of the spring, and when the extension rod of the electric push rod is retracted after arch breaking, the top end of the spray pipe can be pulled back to the lower part of the cover plate by combining the elasticity of the top end of the spray pipe, so that the phenomenon that the top end of the spray pipe cannot return to the lower part of the cover plate after arch breaking due to the fact that the distance between the bottom end of the cover.
The pre-buried three-layer steel wire net cover that has in the pipe wall of spray pipe can improve the intensity and the elasticity of spray pipe by a wide margin, and the life of extension spray pipe makes the spray pipe can keep good elasticity in the use of longer term, and the spray pipe can be in and out the apron and keep good confined state with the apron under electric putter's drive in the use of longer term.
The heating water tank can heat water, so that when water flow impacts the coal body at the knot arch position in the coal bunker, the temperature of the coal body can be increased, the viscosity of the coal body is reduced, the phenomenon that the coal body is difficult to disperse due to too firm bonding is avoided, the coal body at the knot arch position can be rapidly and thoroughly dispersed, and the blockage phenomenon of the coal bunker is eliminated.
The coal curtain can shelter from most coal cinder and the coal cinder that originally can get into the roof below when the spray pipe is located the parking position, avoids a large amount of coals to get into the roof below, further prevents the coal cinder possibility of wafting into the spray pipe to avoid a large amount of coals to adhere to on spring and electric putter's extension bar, avoid influencing spring and electric putter's normal action because of adhering to a large amount of coals.
The arrangement of the tray is convenient for the spray pipe to smoothly extend out of the cover plate and smoothly retract below the cover plate, and large elastic deformation is required to be generated when the spray pipe retracts below the cover plate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the coal curtain.
Detailed Description
As shown in fig. 1 and 2, the hydraulic coal bunker arch breaking device comprises a mounting seat, wherein the mounting seat comprises a top plate 1 and a mounting seat side wall 2 connected below one side of the top plate 1, and the mounting seat side wall 2 is used for being mounted at the bottom of the coal bunker side wall through a mounting frame; the mounting and coal bunker are conventional and not shown.
The top plate 1 is downwards connected with at least one spring 3, the lower end of the spring 3 is connected with a cover plate 4 made of rubber or plastics, a water spraying pipe 5 with an upward opening is arranged below the cover plate 4, the water spraying pipe 5 is made of rubber, and the cover plate 4 is used for preventing coal from falling into the water spraying pipe 5;
the spray pipe 5 extends out of the mounting seat from the lower part of the mounting seat to form the mounting seat and the side wall of the coal bunker and is connected with an external water source, and a high-pressure water pump 6 is arranged on the spray pipe 5 outside the side wall of the coal bunker;
the mounting frame is connected with an electric push rod 7, an extension rod of the electric push rod 7 penetrates through the side wall 2 of the mounting seat in a sliding mode, the end portion of the extension rod is connected with a power disc 8, the power disc 8 is provided with an up-down through mounting hole, and the top of the water spray pipe 5 penetrates through the mounting hole of the power disc 8; an extension rod 9 of the electric push rod 7 faces the middle part of the horizontal section of the coal bunker;
the water spraying pipe 5 is driven by an electric push rod 7 and a power disc 8 to have a water spraying position and a storage position; the top end of the spray pipe 5 at the water spraying position extends out of the cover plate 4, and the top end of the spray pipe 5 at the storage position is in compression joint with the cover plate 4;
when the spray pipe 5 is located at the water spraying position, the bottom end of the cover plate 4 is 0.5-1.5 cm (both ends are included, preferably 0.5 cm) lower than the top end of the spray pipe 5 under the elastic force of the spring 3.
When the number of the springs 3 is 1, the springs 3 with the outer diameter matched with the cover plate 4 are needed; when the number of the springs 3 is two or more, the same specification is adopted for the springs 3 and the springs are uniformly distributed with respect to the cover plate 4.
The top plate 1 shields the coal from above. The invention utilizes the electric push rod 7 to enable the spray pipe 5 to have a water spraying position and a storage position, when water spraying is not needed, the spray pipe 5 can return to the lower part of the cover plate 4, and the top end of the spray pipe 5 is in compression joint with the cover plate 4, thereby well avoiding the phenomenon that coal in a coal bunker enters the spray pipe 5 in a storage state, ensuring that the spray pipe 5 can not be blocked in long-term use, having strong arch breaking capability and being suitable for being used as a frequent arch breaking device.
When the water spraying pipe 5 is located at a water spraying position, the bottom end of the cover plate 4 is lower than the top end of the water spraying pipe 5 by 0.5-1.5 cm under the elastic force of the spring 3, and when the extension rod 9 of the electric push rod 7 is retracted after arch breaking, the top end of the water spraying pipe 5 can be pulled back to the position below the cover plate 4 by combining the elasticity of the top end of the water spraying pipe 5, so that the phenomenon that the top end of the water spraying pipe 5 cannot return to the position below the cover plate 4 after arch breaking due to the fact that the distance between the bottom end of the.
And three layers of steel wire mesh sleeves are embedded in the pipe wall of the water spraying pipe 5. The wire netting is of conventional construction, i.e. a tubular wire netting, not shown.
The three-layer steel wire mesh sleeve is pre-embedded in the pipe wall of the water spraying pipe 5, so that the strength and the elasticity of the water spraying pipe 5 made of rubber can be greatly improved, the service life of the water spraying pipe 5 is prolonged, the water spraying pipe 5 can keep good elasticity in longer-term use, and the water spraying pipe 5 can be driven by the electric push rod 7 to go in and out of the cover plate 4 and keep a good closed state with the cover plate 4 in longer-term use.
A heating water tank 10 is connected in series on the spray pipe 5 at the water inlet of the high-pressure water pump 6, an electric heater 11 (such as an electric heating wire) is arranged in the heating water tank 10, and the electric heater 11 is connected with an external power supply and is provided with a switch; the heating water tank 10 is used to heat water, and the viscosity of the coal at the arch is reduced by the hot water.
The top plate 1 outside the mounting seat side wall 2 is connected with a coal curtain 12 downwards, the coal curtain 12 comprises more than two adjacent baffle sheets 13, the baffle sheets 13 are made of rubber or plastics, and the tops of the baffle sheets 13 are fixedly connected to the top plate 1 of the mounting seat through bolts and nuts 14 respectively.
For convenience of expressing the structures of the spring 3, the cover plate 4, the power disc 8 and the like under the top plate 1, only the coal curtain 12 opposite to the side wall 2 of the mounting seat is shown in fig. 1, and the coal curtain 12 connected downwards to the other part of the top plate 1 is not shown.
The top of the spray pipe 5 is connected with a tray 15 made of rubber, and the top surface of the tray 15 is flush with the top end of the spray pipe 5.
The tray 15 is made of rubber, and when the spray pipe 5 is positioned at a water spraying position, the tray is bent and deformed downwards under the action of the elastic force of the spring 3; when the extension rod 9 of the electric push rod 7 is withdrawn after arch breaking, the tray can assist the spray pipe 5 to smoothly return to the lower part of the cover plate 4 and be in abutting fit with the cover plate 4, and large elastic deformation is avoided when the spray pipe 5 is withdrawn to the lower part of the cover plate 4.
When water spraying arch breaking is needed, a worker controls the extension rod 9 of the electric push rod 7 to extend out, and the power disc 8 drives the water spraying pipe 5 to extend out of the cover plate 4 and the coal curtain 12 towards the middle of the coal bunker; when the coal curtain 12 is extended, the water spray pipes are spread and pass through the gaps between the adjacent baffle plates 13.
The water spraying angle of the water spraying pipe 5 can be controlled by controlling the extension amount of the extension rod 9 of the electric push rod 7, so that the water spraying direction faces the coal bunker arch. After the spray pipe 5 extends out of the cover plate 4, the high-pressure water pump 6 is started, high-pressure water is sprayed to the arch formation part of the upper coal bunker through the top end opening of the spray pipe 5, and hydraulic arch breaking is carried out, so that compared with manual arch breaking, the labor is saved, personnel does not need to be arranged to watch at the underground coal bunker, and the arch breaking efficiency is improved; compared with blasting vibration, the safety risk is avoided, and gas inspection is not required before arch breaking; compared with the air cannon arch breaking, the arch breaking capacity is greatly improved.
When the viscosity of the coal body is larger and the arch breaking difficulty is improved in winter, the switch is turned on, the electric heater 11 is turned on, so that water is heated, and when the arch is broken, the temperature of the coal body is raised by the hot water, so that the viscosity of the coal body is reduced, the phenomenon that the coal body is difficult to disperse due to over firm bonding of the coal body is avoided, the coal body at the arch knot can be dispersed more quickly and thoroughly, and the blocking phenomenon of a coal bunker is eliminated.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (5)
1. The hydraulic coal bunker arch breaking device is characterized in that: the coal bunker installation device comprises an installation seat, wherein the installation seat comprises a top plate and an installation seat side wall connected below one side of the top plate, and the installation seat side wall is installed at the bottom of the coal bunker side wall through an installation frame;
the top plate is downwards connected with at least one spring, the lower end of the spring is connected with a cover plate made of rubber or plastic, a water spraying pipe with an upward opening is arranged below the cover plate, the water spraying pipe is made of rubber, and the cover plate is used for preventing coal from falling into the water spraying pipe;
the spray pipe extends out of the mounting seat from the lower part of the mounting seat and is connected with the side wall of the coal bunker and an external water source, and a high-pressure water pump is arranged on the spray pipe outside the side wall of the coal bunker;
the mounting frame is connected with an electric push rod, an extension rod of the electric push rod penetrates through the side wall of the mounting seat in a sliding mode, the end portion of the extension rod is connected with a power disc, the power disc is provided with a through mounting hole, and the top of the water spray pipe penetrates through the mounting hole of the power disc; an extension rod of the electric push rod faces the middle part of the horizontal section of the coal bunker;
the water spraying pipe is driven by the electric push rod and the power disc to have a water spraying position and a storage position; the top end of the spray pipe at the water spraying position extends out of the cover plate, and the top end of the spray pipe at the storage position is in compression joint with the cover plate;
when the spray pipe is positioned at the water spraying position, the bottom end of the cover plate is 0.5-1.5 cm lower than the top end of the spray pipe under the elastic force of the spring.
2. The hydraulic coal bunker arch breaking device of claim 1, wherein: and three layers of steel wire mesh sleeves are embedded in the pipe wall of the water spray pipe.
3. The hydraulic coal bunker arch breaking device of claim 1, wherein: a heating water tank is connected in series on a spray pipe at the water inlet of the high-pressure water pump, an electric heater is arranged in the heating water tank, and the electric heater is connected with an external power supply and is provided with a switch; the heating water tank is used for heating water, and then the viscosity of the coal body at the arch formation position is reduced through the hot water.
4. The hydraulic coal bunker arch breaking device as claimed in any one of claims 1 to 3, wherein: the roof beyond the mount pad lateral wall is connected with the coal curtain downwards, and the coal curtain includes the separation blade of two above adjacent settings, and the separation blade is made by rubber or plastics, and the top of each separation blade is fixed connection respectively on the roof of mount pad.
5. The hydraulic coal bunker arch breaking device of claim 4, wherein: the top of the spray pipe is connected with a tray made of rubber, and the top surface of the tray is flush with the top end of the spray pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010086277.6A CN111056154B (en) | 2020-02-11 | 2020-02-11 | Hydraulic coal bunker arch breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010086277.6A CN111056154B (en) | 2020-02-11 | 2020-02-11 | Hydraulic coal bunker arch breaking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111056154A true CN111056154A (en) | 2020-04-24 |
| CN111056154B CN111056154B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010086277.6A Expired - Fee Related CN111056154B (en) | 2020-02-11 | 2020-02-11 | Hydraulic coal bunker arch breaking device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037356U (en) * | 1988-08-16 | 1989-05-10 | 刘源崚 | Coal storehouse arch-breaking device |
| CN2633806Y (en) * | 2003-09-10 | 2004-08-18 | 周利庆 | Dredging device for coal bunker blocking water cannon |
| KR20090099170A (en) * | 2008-03-17 | 2009-09-22 | (주)대우건설 | Movable water cleaning system and cleaning method using same |
| CN201785051U (en) * | 2010-08-06 | 2011-04-06 | 天瑞集团水泥有限公司 | Automatic detecting anti-blocking device of discharge bin |
| CN104085625A (en) * | 2014-07-07 | 2014-10-08 | 无锡市华通环保设备有限公司 | Full-automatic coal bunker water cannon dredging device |
| CN104773409A (en) * | 2015-03-23 | 2015-07-15 | 兖州煤业股份有限公司 | Coal bin dredging device |
| CN209618014U (en) * | 2018-12-06 | 2019-11-12 | 河南辉强机械设备有限公司 | Hydraulic water spray joint arch breaking apparatus |
-
2020
- 2020-02-11 CN CN202010086277.6A patent/CN111056154B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037356U (en) * | 1988-08-16 | 1989-05-10 | 刘源崚 | Coal storehouse arch-breaking device |
| CN2633806Y (en) * | 2003-09-10 | 2004-08-18 | 周利庆 | Dredging device for coal bunker blocking water cannon |
| KR20090099170A (en) * | 2008-03-17 | 2009-09-22 | (주)대우건설 | Movable water cleaning system and cleaning method using same |
| CN201785051U (en) * | 2010-08-06 | 2011-04-06 | 天瑞集团水泥有限公司 | Automatic detecting anti-blocking device of discharge bin |
| CN104085625A (en) * | 2014-07-07 | 2014-10-08 | 无锡市华通环保设备有限公司 | Full-automatic coal bunker water cannon dredging device |
| CN104773409A (en) * | 2015-03-23 | 2015-07-15 | 兖州煤业股份有限公司 | Coal bin dredging device |
| CN209618014U (en) * | 2018-12-06 | 2019-11-12 | 河南辉强机械设备有限公司 | Hydraulic water spray joint arch breaking apparatus |
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| Publication number | Publication date |
|---|---|
| CN111056154B (en) | 2022-02-08 |
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