CN102284341A - Seal pebble coal discharge device - Google Patents
Seal pebble coal discharge device Download PDFInfo
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- CN102284341A CN102284341A CN2011102020294A CN201110202029A CN102284341A CN 102284341 A CN102284341 A CN 102284341A CN 2011102020294 A CN2011102020294 A CN 2011102020294A CN 201110202029 A CN201110202029 A CN 201110202029A CN 102284341 A CN102284341 A CN 102284341A
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- seal box
- stone coal
- seal
- sealing
- tapping equipment
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Abstract
The invention discloses a pebble coal discharge mechanism for a coal mill and particularly relates to a seal pebble coal discharge device, which comprises a pebble coal falling hole and a seal box. The pebble coal falling hole and the seal box are connected together through a conveying pipeline; the pipeline is provided with a primary shutoff valve and a secondary shutoff valve; the lower end of the seal box is provided with a storage and transportation cabin; the lower end of the storage and transportation cabin is provided with a weighing device; the position of the outlet at the lower end of the seal box is connected with an expansion joint; the seal box is also provided with an air cylinder for controlling the expansion joint to do an expansion movement; and when the expansion joint moves downwards, the edge of the opening at the lower end of the expansion joint is hermetically contacted with the edge of a material receiving hole of the storage and transportation cabin through a seal element. After the structure is adopted, the whole slag discharging process can be carried out under the condition of complete closing, thus, the phenomena of dust flying and power injection are avoided; by adopting a seal slag discharging device and negative pressure and water spray treatment, the dust flying phenomenon and the spontaneous combustion phenomenon of gangue can be further eliminated. Simultaneously, a bearing force sensor is arranged, thus, the problem of pebble coal stacking is thoroughly solved. The pebble coal is poured out through a special forklift without manual handling, so that the labor power output is reduced.
Description
Technical field
The present invention relates to a kind of coal pulverizer stone coal discharging mechanism, especially a kind of stone coal sealing tapping equipment.
Background technology
In thermal power generation corporations, medium-speed pulverizer is widely used in more than 300,000 kilowatts in the generating set, in the medium-speed pulverizer system of the existing operation of China, the discharging of stone coal is the largest source that causes coal pulverizer workshop dust pollution all the time, seriously disturbed the power plant to carry out production strictly in line with rules and regulations, stone coal tapping equipment of the prior art still adopts direct open discharge mostly, because the stone coal contains dust and coal dust, slag tap and transport on-the-spot dust from flying in the discharge process, field apparatus and working environment there are serious harm, cause site environment to pollute, influence the plant environment health, simultaneously also field personnel healthy caused very big harm, when adopting artificial deslagging, because stone coal and removing slag amount is big, labour intensity is big, artificial deslagging also can't shift the stone coal rapidly, influences the normal operation of coal pulverizer.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of good sealing effect, effectively reduces environmental pollution, unfailing performance height, the stone coal sealing tapping equipment of convenient discharging stone coal.
In order to solve the problems of the technologies described above, stone coal of the present invention sealing tapping equipment comprises that the stone coal falls mouthful and seal box, the stone coal falls mouthful and seal box links together by conveyance conduit, pipeline is provided with shut-off valve and secondary shut-off valve, the below of seal box is provided with movably accumulating storehouse, the below in accumulating storehouse is provided with weighing device, the exit, lower end of seal box is connected with telescopic joint, also be provided with the cylinder of control telescopic joint stretching motion on the seal box, the edge of its lower ending opening contacted with the material receiving port edge sealing in accumulating storehouse by seal when telescopic joint moved down.
Be provided with spray equipment in the described seal box, described spray equipment comprises external water pipe, and the bottom of described external water pipe is provided with nozzle, and described nozzle stretches in the little storehouse of accumulating.
Described nozzle can be swivel nozzle.
The top of described seal box is provided with air bleeding valve and exhaust gas filter cloth bag.
Described pipeline comprises the vertical section of vertical setting and from the horizontal by 45 ° of tilting sections of spending angles, a described shut-off valve is arranged on the vertical section, and the secondary shut-off valve is arranged on the tilting section.
Described accumulating also is equipped with the bearing capacity inductor under the storehouse.
Described accumulating storehouse can be set to more than one.
After adopting above-mentioned structure, changed original uncovered collection stone coal phenomenon, by seal box is set, the little storehouse of accumulating is moved to when making that the little storehouse of seal box and accumulating sealing joint cooperates below the seal box, whole tapping process can carry out under the condition of complete closed, thereby can avoid the dust raising phenomenon in the tapping process; In order to guarantee the phenomenon of dusting not occur when system sealing disconnects, the top of seal box is provided with air bleeding valve and exhaust gas filter cloth bag.Need not driven by power by seal box top stream injection negative pressure device, utilize on-the-spot compressed air can produce powerful negative pressure effect, guaranteed the reliability of whole system.According to part power plant stone coal dieseling is arranged, the spray equipment that is provided with, not only can further eliminate dust raising phenomenon by water spray, and can avoid the generation of spoil dieseling, adopt the sealing slag-draining device to add negative pressure and water spray processing, stopped to drift along and the generation of gangue dieseling before dreg discharging box is removed below sealing device, also just not worrying transporting in the process of dreg discharging box can airborne dust or the equipment of the periphery that ignites; Simultaneously under the little storehouse of accumulating, the bearing capacity inductor is installed,, Realtime Level is accurately shown and issues system's switch board, in time the stone coal is toppled over processing, thoroughly avoid the stone dump to amass problem by four unification Wiring modules.The little storehouse of accumulating of filling the stone coal can be toppled over by special-purpose fork truck does not need artificial treatment.At the open manual emission of holding tank transition system, system can reduce the dust pollution more than 95%, reduces by labour's output of 85%.And improved stone coal tapping equipment possesses the high-precision measuring facility, promptly can accomplish far and near to report to the police apart from material level, can also accumulate coal pulverizer stone coal hourly discharge capacity, thereby help effectively judging coal pulverizer dynamic and static ring running status.
Description of drawings
Fig. 1 is the structural representation of stone coal sealing tapping equipment of the present invention;
Fig. 2 is the storage and transportation apparatus schematic diagram of stone coal sealing tapping equipment of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, stone coal sealing tapping equipment of the present invention is described in further detail.
As shown in Figure 1, stone coal sealing tapping equipment of the present invention, comprise that the stone coal falls mouthful 1 and seal box 2, the stone coal fall mouthful 1 and seal box 2 link together by conveyance conduit 3, pipeline 3 is provided with shut-off valve 4 and secondary shut-off valve 5, pipeline 3 comprises the vertical section of vertical setting and from the horizontal by 45 ° of tilting sections of spending angles, No. one time shut-off valve 4 is arranged on the vertical section, and secondary shut-off valve 5 is arranged on the tilting section.The lower end of sealing device is provided with accumulating storehouse 6, the accumulating storehouse can be set to more than one, the lower end in accumulating storehouse is provided with electronic weighing device 7, bearing capacity inductor (not shown) also is installed under the little storehouse of accumulating, by four unification Wiring modules, Realtime Level is accurately shown and issue system's switch board, in time the stone coal is toppled over processing, thoroughly avoid the stone dump to amass problem.The exit, lower end of seal box 2 is connected with telescopic joint 9, fixedly connected with the bottom of seal box 2 in the upper end of telescopic joint 9, the edge of opening of telescopic joint 9 lower ends is provided with seal 8 and connects, also be provided with the cylinder 10 of control telescopic joint 9 stretching motions on the seal box 2, its lower ending opening contacted with the material receiving port edge sealing in accumulating storehouse 6 by seal 8 when telescopic joint moved down.
As shown in Figure 2, basis that can also said apparatus in the seal box 2 of stone coal of the present invention sealing tapping equipment is provided with spray equipment, spray equipment comprises external water pipe 11, the bottom of external water pipe is provided with nozzle 12, nozzle 12 stretches in the little storehouse 6 of accumulating, and nozzle can be set to swivel nozzle.When using stone coal of the present invention to seal tapping equipment, can further eliminate dust raising phenomenon by the spray equipment water spray, and can avoid the generation of spoil dieseling.
The top of above-mentioned seal box 2 is provided with air bleeding valve 13 and exhaust gas filter cloth bag 14.Need not driven by power by seal box 2 top stream injection negative pressure devices, utilize on-the-spot compressed air can produce powerful negative pressure effect, guaranteed the reliability of package unit.
Workflow:
When coal pulverizer is equipped with an accumulating storehouse 6, after stone coal trunkful is reported to the police, shutoff device secondary shut-off valve 5, carry out overbottom pressure in the aspirator by seal box 2 top stream injection negative pressure devices, it is up to start hydraulic push rod, makes seal 8 break away from accumulating storehouses 6 material receiving ports, after the playback of accumulating storehouse, again compress sealing, open the secondary shut-off valve, enter secondary stone coal collecting flow process.
When every coal pulverizer is equipped with two accumulating storehouses, after first stone coal trunkful is reported to the police, shutoff device secondary shut-off valve 5, carry out overbottom pressure in the aspirator by seal box 2 top stream injection negative pressure devices, it is up to start hydraulic push rod, makes seal 8 break away from accumulating storehouses 6 material receiving ports, after changing accumulating storehouse 6, again compress sealing, open the secondary shut-off valve, enter secondary stone coal collecting flow process.
Claims (7)
1. a stone coal seals tapping equipment, comprise stone coal fall mouthful (1) and a seal box (2), the stone coal falls mouthful (1) and seal box (2) links together by conveyance conduit (3), pipeline (3) is provided with a shut-off valve (4) and secondary shut-off valve (5), the lower end of sealing device is provided with accumulating storehouse (6), the below in accumulating storehouse is provided with weighing device (7), it is characterized in that: the exit, lower end of seal box (2) is connected with telescopic joint (9), also be provided with the cylinder (10) of control telescopic joint stretching motion on the seal box (2), when telescopic joint moved down, telescopic joint lower ending opening edge can pass through seal (8) and contact with the material receiving port edge sealing in accumulating storehouse.
2. according to the described stone coal sealing of claim 1 tapping equipment, it is characterized in that: be provided with spray equipment in the described seal box 2, described spray equipment comprises and is provided with external water pipe (11) in the seal box (2), the bottom of described external water pipe is provided with nozzle (12), and described nozzle (12) stretches in the accumulating storehouse (6).
3. according to the described stone coal sealing of claim 2 tapping equipment, it is characterized in that: described nozzle is a swivel nozzle.
4. according to the described stone coal sealing of claim 1 tapping equipment, it is characterized in that: the top of described seal box is provided with air bleeding valve (13) and exhaust gas filter cloth bag (14).
5. according to the described stone coal sealing of claim 1 tapping equipment, it is characterized in that: described pipeline (3) comprise vertical setting vertical section and from the horizontal by 45 ° the degree angles tilting sections, a described shut-off valve (4) is arranged on the vertical section, and secondary shut-off valve (5) is arranged on the tilting section.
6. according to the described stone coal sealing of claim 1 tapping equipment, it is characterized in that: under the described accumulating storehouse (6) the bearing capacity inductor is installed also.
7. according to the described stone coal sealing of claim 1 tapping equipment, it is characterized in that: described accumulating storehouse (6) has a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102020294A CN102284341A (en) | 2011-07-19 | 2011-07-19 | Seal pebble coal discharge device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102020294A CN102284341A (en) | 2011-07-19 | 2011-07-19 | Seal pebble coal discharge device |
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| CN102284341A true CN102284341A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102020294A Pending CN102284341A (en) | 2011-07-19 | 2011-07-19 | Seal pebble coal discharge device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301922A (en) * | 2013-06-26 | 2013-09-18 | 赵云辉 | Full-sealed type slag discharging system of coal mill |
| CN103586120A (en) * | 2013-08-22 | 2014-02-19 | 尹国庆 | Movable pebble coal sealing collector |
| CN104043517A (en) * | 2014-06-18 | 2014-09-17 | 阚梦诗 | Discharging device of pebble coal seal pot of coal mill |
| CN107937142A (en) * | 2017-11-29 | 2018-04-20 | 中色科技股份有限公司 | Oily diatomite treatment equipment connected into rolling mill full-oil recovery system |
| CN113184563A (en) * | 2021-04-19 | 2021-07-30 | 江苏瑞能电力设备有限公司 | Stone coal slag discharging system |
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| CN201500567U (en) * | 2009-08-06 | 2010-06-09 | 北京昊蓬机电设备有限公司 | Closed slag discharging device and slag discharging system having same |
| CN201505566U (en) * | 2009-09-28 | 2010-06-16 | 常州市肯创环境工程技术有限公司 | Pebble coal discharging device for coal mill |
| CN201664625U (en) * | 2009-03-19 | 2010-12-08 | 北京恒信众和电站辅助设备有限责任公司 | Medium speed-milled pebble coal collecting and conveying device |
| CN201889225U (en) * | 2010-11-22 | 2011-07-06 | 扬州春明机械有限公司 | Environment-friendly discharge and hermetical collection device for stone coal |
| CN202201518U (en) * | 2011-07-19 | 2012-04-25 | 江苏威宇电力设备有限公司 | Pebble coal sealing and discharging device |
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2011
- 2011-07-19 CN CN2011102020294A patent/CN102284341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201664625U (en) * | 2009-03-19 | 2010-12-08 | 北京恒信众和电站辅助设备有限责任公司 | Medium speed-milled pebble coal collecting and conveying device |
| CN201500567U (en) * | 2009-08-06 | 2010-06-09 | 北京昊蓬机电设备有限公司 | Closed slag discharging device and slag discharging system having same |
| CN201505566U (en) * | 2009-09-28 | 2010-06-16 | 常州市肯创环境工程技术有限公司 | Pebble coal discharging device for coal mill |
| CN201889225U (en) * | 2010-11-22 | 2011-07-06 | 扬州春明机械有限公司 | Environment-friendly discharge and hermetical collection device for stone coal |
| CN202201518U (en) * | 2011-07-19 | 2012-04-25 | 江苏威宇电力设备有限公司 | Pebble coal sealing and discharging device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301922A (en) * | 2013-06-26 | 2013-09-18 | 赵云辉 | Full-sealed type slag discharging system of coal mill |
| CN103586120A (en) * | 2013-08-22 | 2014-02-19 | 尹国庆 | Movable pebble coal sealing collector |
| CN103586120B (en) * | 2013-08-22 | 2015-05-13 | 尹国庆 | Movable pebble coal sealing collector |
| CN104043517A (en) * | 2014-06-18 | 2014-09-17 | 阚梦诗 | Discharging device of pebble coal seal pot of coal mill |
| CN107937142A (en) * | 2017-11-29 | 2018-04-20 | 中色科技股份有限公司 | Oily diatomite treatment equipment connected into rolling mill full-oil recovery system |
| CN113184563A (en) * | 2021-04-19 | 2021-07-30 | 江苏瑞能电力设备有限公司 | Stone coal slag discharging system |
| CN113184563B (en) * | 2021-04-19 | 2022-08-19 | 江苏瑞能电力设备有限公司 | Stone coal slag discharging system |
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Application publication date: 20111221 |