CN208168922U - Coalcutter negative pressure device for reducing dust - Google Patents
Coalcutter negative pressure device for reducing dust Download PDFInfo
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- CN208168922U CN208168922U CN201820661091.7U CN201820661091U CN208168922U CN 208168922 U CN208168922 U CN 208168922U CN 201820661091 U CN201820661091 U CN 201820661091U CN 208168922 U CN208168922 U CN 208168922U
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- pipe
- sweep
- dust
- coalcutter
- pressure water
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Abstract
The utility model relates to a kind of coalcutter negative pressure device for reducing dust, belong to coalcutter apparatus field.The technical solution adopted in the utility model is：The front of sweep-up pipe is inclined outlet, rear end after sweep-up pipe is open dust suction flaring, the side walls of sweep-up pipe are provided with multiple side suction inlets, the middle part of sweep-up pipe is equipped with high-pressure water pipe, high-pressure water pipe introduces sweep-up pipe from the external of sweep-up pipe, high-pressure water pipe is equipped with multiple nozzles, the ejection water mist of nozzle at the front end exit of sweep-up pipe, and multiple nozzles spray water mist and form hemispheric water mist spray space in the exit of sweep-up pipe.
Description
Technical field
The utility model relates to a kind of coalcutter negative pressure device for reducing dust, belong to coalcutter apparatus field.
Background technique
The continuous improvement of coal mine comprehensive mechanical coal mining degree also results in all while bringing tremendous economic income
More negative effects, maximum problem is exactly the generation of high concentration coal dust, has seriously affected the safe and efficient production of mine, has been
The health of underground operators threatens.After measured, having about 40% in fully-mechanized mining working coal dust is respiratory coal
Dirt can make staff suffer from pneumoconiosis and participate in dust explosion, endanger quite serious.The dust of coal mine fully-mechanized mining working is main
From coal mining machine roller cutting dust and hydraulic moving stand dust fall, 90% or more of the total dust-producing amount of fully mechanized coal face is accounted for, is dust
The emphasis of control.Spraying system is equipped at coalcutter and hydraulic support, it is spraying when carrying out coal cutting operation and moving frame operation
System carries out depositing dust operation simultaneously, but dust is difficult to settle completely.According to the relevant information, the drop of common spray dust-reducing system
Dirt efficiency only has 40%~50%.The dust not settled will be flown upward with distinguished and admirable, pollute operating environment, it is therefore necessary to this
Part dust is effectively treated, but dust easily drifts with the wind, and contaminated sites are difficult to determine, depositing dust work implements difficult
It is heavy.Automatic dustfall system is designed thus, it passes through the powder being arranged in work surface based on secondary dust removal with negative pressure device
Dust sensor locks contaminated sites, and carries out depositing dust operation to this place point immediately, can not only improve setting spray drop
The dustfall efficiency of dirt system, moreover it is possible to control the dust concentration of entire working face in reasonable range.
Summary of the invention
The present invention relates to a kind of coalcutter negative pressure device for reducing dust, solve the problems, such as the depositing dust near coalcutter.
To achieve the above object, the technical solution adopted by the present invention is that：
Coalcutter negative pressure device for reducing dust, the front of sweep-up pipe are inclined outlet, and the rear end after sweep-up pipe is open
Dust suction flaring, the side walls of sweep-up pipe are provided with multiple side suction inlets, and the middle part of sweep-up pipe is equipped with high-pressure water pipe, high-pressure water pipe
External from sweep-up pipe introduces sweep-up pipe, and high-pressure water pipe is equipped with multiple nozzles, the ejection of nozzle at the front end exit of sweep-up pipe
Water mist, multiple nozzles spray water mist and form hemispheric water mist spray space in the exit of sweep-up pipe.
Cental axial position of the high-pressure water pipe in dust removing tube is from position is introduced to sweep-up pipe outlet arrangement, and nozzle is in Gao Shuishui
The front end of pipe is arranged in equal angular space, and the initial plane for the hemispherical shape that nozzles spray goes out is in the inclined of sweep-up pipe
Face where outlet.
Sweep-up pipe is arranged at the oil cylinder of hydraulic support top beam jack of coalcutter, and multiple groups are equipped with around hydraulic support
The outlet front position of dust sensor, dust removing tube is equipped with infrared human body sensor arrangement point, dust sensor and infrared human body
Sensor arrangement point is connected to PLC, and PLC draws control signal wire and is connected to the solenoid valve in high-pressure water pipe.
The hydraulic pressure of high-pressure water pipe is 8MPa, is additionally provided with manned valve in high-pressure water pipe.
The advantages of this product, is：Depositing dust technique is improved to sprinkling depositing dust by simply directly spraying depositing dust and is again followed
Ring depositing dust, improves dust-laying effect；Equipped with PLC and dust and infrared human body sensor, automatic dustfall control and personnel are realized
Evade control, improve intelligentized level, realizes unmanned manipulation, improve the working environment of depositing dust.
This product realizes automatic multiple tracks barrier and height to the dust that coal excavation apparatus each in coal working face generates in the application
Dedusting is imitated, field worker labor intensity is alleviated, is opened for coal mine synthetical development levels to automation, intelligent development
Road.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model,
Fig. 2 is the installation site figure of the utility model,
Fig. 3 is the control principle drawing of the utility model,
Fig. 4 is the schematic diagram of the middle depositing dust of the utility model.
1, sweep-up pipe, 2, outlet, 3, dust suction flaring, 4, side suction inlet, 5, high-pressure water pipe, 6, nozzle, 7, water mist spray
Space, 8, coalcutter, 9, dust sensor, 10, infrared human body sensor.
Specific embodiment
The utility model is a kind of coalcutter negative pressure device for reducing dust, and structure is as shown in Figure 1, include sweep-up pipe 1, sweep-up pipe
1 front is inclined outlet 2, and the rear end after sweep-up pipe 1 is open dust suction flaring 3, and the side walls of sweep-up pipe 1 are provided with more
A side suction inlet 4, the middle part of sweep-up pipe 1 are equipped with high-pressure water pipe 5, and high-pressure water pipe 5 introduces sweep-up pipe 1 from the external of sweep-up pipe 1,
High-pressure water pipe 5 is equipped with multiple nozzles 6, the ejection water mist of nozzle 6 at the front end exit 2 of sweep-up pipe 1, and multiple nozzles 6 spray water
Mist forms hemispheric water mist spray space 7 at the outlet of sweep-up pipe 12.
The working principle of the utility model：When nozzle in jet pipe is sprayed from inside to outside, the water mist diameter that spreads apart
When greater than dust suction bore, spraying piston just will form, it, will at water mist rear portion after the air in front of sweep-up pipe is released by water mist
Vacuum is formed, to form negative pressure at nozzle rear portion, so that dust-contained airflow is entered air-flow through dust suction flaring and side suction inlet and draws
In the sweep-up pipe of injection device, in sweep-up pipe, repeatedly shock, collision of the dust of sucking by water mist are forced to solidifying with droplet
Knot, after spraying dust suction pipe, the air and water that lose aerial suspending power, settle down quickly, while being cleaned
The mixture continuation of mist composition is sprayed at a relatively high speed by sweep-up pipe, forms negative pressure field in outlet end, the ash-laden gas around volume suction
Stream enters spray field, and the dust in air-flow is further purified, to realize secondary dust removing.
Specifically in setting, cental axial position of the high-pressure water pipe 5 in dust removing tube is from position is introduced to the outlet of sweep-up pipe 2
Arrangement, nozzle 6 is arranged in the front end of high water water pipe in equal angular space, with the glomerate water mist spray space 7 of shape, nozzle 6
The initial plane of the hemispherical shape sprayed is in the 2 place face of inclined outlet of sweep-up pipe 1.
1 position of sweep-up pipe is arranged at the oil cylinder of hydraulic support top beam jack of coalcutter 8, to consider being sprayed for nozzle
Controllably, multiple groups dust sensor 9 is equipped with around hydraulic support, 2 front position of outlet of dust removing tube is passed equipped with infrared human body
10 layout points of sensor, dust sensor 9 and 10 layout points of infrared human body sensor are connected to PLC, and PLC draws control signal wire and connects
The solenoid valve being connected in high-pressure water pipe 5 is additionally provided with manned valve in high-pressure water pipe 5.Control annexation figure such as Fig. 4 institute
Show.
The control process of the present apparatus, the hydraulic pressure of high-pressure water pipe 5 are 8MPa, dust sensor and infrared sensor of the human body acquisition
To signal determined through PLC and issue command adapted thereto to solenoid valve, pass through the solenoid valve on-off in control high-pressure water pipe
Realize the control to device for reducing dust state.
Each parts selection in the present apparatus uses, and dust sensor selects GCG500 type sensor of dust concentration.It is main
Technical indicator:Total dust concentration measurement range is 0. 1~500mg/m3, and extraction flow is 2L/min, output signal
For 200~1000Hz, 1~5mA, measurement error is ± 15%.Infrared human body sensor will also have durable, sensitivity is high etc.
Feature, final choice GRH8 type mine infrared human body sensor, it is mainly made of a kind of high fever constant materials
Infrared detective element, this probe have higher sensitivity to human body radiation detection.The selection of solenoid valve must be prevented
It is quick-fried, therefore have chosen 0 type solenoid valve of D Mining FB-40-XB-1., specified control supply voltage:
AC (50HZ) 36V, power consumption are less than 28W, pressure adaptation range:0~10MPa.
Upper table is the dust measurement parameter of the present apparatus after use, based on device, monitors all dust in fully mechanized coal face
Concentration over-standard region, full dirt and to exhale the average dust reduction rate of dirt be respectively 86. 8% and 83. 1% in opposite, than taking common remove
Dirt measure has been respectively increased 41. 3 and 42. 8 percentage points.Depositing dust technique is improved to by simply directly spraying depositing dust
It sprays depositing dust and recycles depositing dust again, improve dust-laying effect；Equipped with PLC and dust and infrared human body sensor, realize certainly
Dynamic depositing dust control and personnel evade control, improve intelligentized level, realize unmanned manipulation, improve the building ring of depositing dust
Border.This product is realized automatic multiple tracks barrier to the dust that coal excavation apparatus each in coal working face generates in the application and is efficiently removed
Dirt alleviates field worker labor intensity, opens road to automation, intelligent development for coal mine synthetical development levels.
Claims (5)
1. a kind of coalcutter negative pressure device for reducing dust, characterized in that including sweep-up pipe（1）, sweep-up pipe（1）Front be it is inclined
Outlet（2）, sweep-up pipe（1）Rear end afterwards is open dust suction flaring（3）, sweep-up pipe（1）Side walls be provided with multiple sides
Suction inlet（4）, sweep-up pipe（1）Middle part be equipped with high-pressure water pipe（5）, high-pressure water pipe（5）From sweep-up pipe（1）External introduce dust suction
Pipe（1）, high-pressure water pipe（5）In sweep-up pipe（1）Front end exit（2）Place is equipped with multiple nozzles（6）, nozzle（6）Ejection water mist,
Multiple nozzles（6）Water mist is sprayed in sweep-up pipe（1）Outlet（2）Place forms hemispheric water mist spray space（7）.
2. coalcutter according to claim 1 negative pressure device for reducing dust, characterized in that high-pressure water pipe（5）In dust removing tube
Cental axial position from introduce outlet of the position to sweep-up pipe（2）Arrangement, nozzle（6）In the front end of high water water pipe in equal angular
Space setting, nozzle（6）The initial plane of the hemispherical shape sprayed is in sweep-up pipe（1）Inclined outlet（2）Place
Face.
3. coalcutter according to claim 1 negative pressure device for reducing dust, characterized in that sweep-up pipe（1）It is arranged in coalcutter
（8）Hydraulic support top beam jack oil cylinder at, around hydraulic support be equipped with multiple groups dust sensor（9）, dust removing tube
Outlet（2）Front position is equipped with infrared human body sensor（10）Layout points, dust sensor（9）With infrared human body sensor（10）
Layout points are connected to PLC, and PLC draws control signal wire and is connected to high-pressure water pipe（5）On solenoid valve.
4. coalcutter according to claim 1 negative pressure device for reducing dust, characterized in that high-pressure water pipe（5）Hydraulic pressure be
8MPa。
5. coalcutter according to claim 3 negative pressure device for reducing dust, characterized in that high-pressure water pipe（5）On be additionally provided with people
The valve of work manipulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661091.7U CN208168922U (en) | 2018-05-05 | 2018-05-05 | Coalcutter negative pressure device for reducing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661091.7U CN208168922U (en) | 2018-05-05 | 2018-05-05 | Coalcutter negative pressure device for reducing dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208168922U true CN208168922U (en) | 2018-11-30 |
Family
ID=64369669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820661091.7U Expired - Fee Related CN208168922U (en) | 2018-05-05 | 2018-05-05 | Coalcutter negative pressure device for reducing dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208168922U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779628A (en) * | 2019-03-20 | 2019-05-21 | 开滦（集团）有限责任公司电信分公司 | Coalcutter external high-pressure fog automatic dustfall device |
| CN110107341A (en) * | 2019-06-05 | 2019-08-09 | 陈业武 | A kind of mine down-hole fully-mechanized mining working shifting frame coal breakage fog gun device for reducing dust |
| CN117468926A (en) * | 2023-12-22 | 2024-01-30 | 徐州江煤科技有限公司 | Air-water linkage automatic spraying dust-settling device |
-
2018
- 2018-05-05 CN CN201820661091.7U patent/CN208168922U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779628A (en) * | 2019-03-20 | 2019-05-21 | 开滦（集团）有限责任公司电信分公司 | Coalcutter external high-pressure fog automatic dustfall device |
| CN109779628B (en) * | 2019-03-20 | 2023-08-29 | 开滦（集团）有限责任公司电信分公司 | External high-pressure spraying automatic dust settling device of coal mining machine |
| CN110107341A (en) * | 2019-06-05 | 2019-08-09 | 陈业武 | A kind of mine down-hole fully-mechanized mining working shifting frame coal breakage fog gun device for reducing dust |
| CN110107341B (en) * | 2019-06-05 | 2024-02-20 | 陈业武 | Mine underground fully-mechanized coal mining face moving frame coal-falling fog gun dust-settling device |
| CN117468926A (en) * | 2023-12-22 | 2024-01-30 | 徐州江煤科技有限公司 | Air-water linkage automatic spraying dust-settling device |
| CN117468926B (en) * | 2023-12-22 | 2024-03-12 | 徐州江煤科技有限公司 | Air-water linkage automatic spraying dust-settling device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20190505 |
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| CF01 | Termination of patent right due to non-payment of annual fee |