CN203145991U - Ventilation and dust prevention system for coal tunneling working face - Google Patents
Ventilation and dust prevention system for coal tunneling working face Download PDFInfo
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- CN203145991U CN203145991U CN 201320015455 CN201320015455U CN203145991U CN 203145991 U CN203145991 U CN 203145991U CN 201320015455 CN201320015455 CN 201320015455 CN 201320015455 U CN201320015455 U CN 201320015455U CN 203145991 U CN203145991 U CN 203145991U
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- dust
- ventilation
- air duct
- deduster
- coal
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Abstract
The utility model discloses a dust removal device for coal mining, and particularly discloses a ventilation and dust prevention system for a coal tunneling working face. The ventilation and dust prevention system comprises a dust removal device. The dust removal device is mounted on a runway of a transfer belt conveyor of a tunneling machine and comprises a negative-pressure air duct, a dust removal fan, a flexible air duct and a dust remover, the negative-pressure air duct is communicated with an inlet of the dust removal fan, and an outlet of the dust removal fan is communicated with the dust remover via the flexible air duct. The ventilation and dust prevention system has the advantages that the concentration of dust of a tunnel and the concentration of dust of the working face can be greatly reduced, and accordingly silicosis which jeopardizes the physical health of operators and coal-dust explosion which threatens the personal safety of the operators are effectively prevented and reduced.
Description
Technical field
The utility model relates to a kind of dust arrester that excavates for coal, particularly relates to a kind of coal driving face dust control by ventilation system.
Background technology
At present; in excacations such as development, driving face, tunnel anchor spray; produce a large amount of pollutants; generally comprise dust pollution and exhaust emission, so need dust guard be installed at the work plane of development machine, existing dust arrester efficiency of dust collection is low; can cause the staff to suck dust; anthraco-silicosis or other disease usually can occur, working environment is relatively poor, and staff's personal safety can not get good protection.
The utility model content
A kind of coal driving face dust control by ventilation of the present utility model system has overcome the deficiency that prior art exists, and a kind of raising efficient of prevent dust is provided, and makes a kind of coal driving face dust control by ventilation system that pollutes reduction.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of coal driving face dust control by ventilation of the present utility model system, comprise the dust arrester on the reprinting sealing-tape machine runway that is installed in development machine, described dust arrester comprises negative pressure air duct, dedusting fan, flexible air duct and deduster, described negative pressure air duct is communicated with the entrance of described dedusting fan, and the outlet of described dedusting fan is communicated with by described flexible air duct with described deduster.
Also comprise fan supporter, described dedusting fan is installed on the described fan supporter.
Also comprise the deduster support, described deduster is installed on the described deduster support.
Described dedusting fan is that the explosion-proof pull-out type of FBDC type is to the axial flow rotary booster.
Described deduster is wet scrubber, comprises casing and is arranged on the interior dehydrator of casing.
Described negative pressure air duct is rubber-coated formula negative pressure air duct, and diameter is 600mm.
The power of described dedusting fan is 11 kW, and exhaust air rate is 250～300m
3/ min, blast are 350-3850Pa.
Water injection rate＜5L/min in the described casing, the processing wind speed is 250～300m
3/ min, work noise≤85dB.
Performances such as the negative pressure air duct is rubber-coated cloth negative pressure air duct in the utility model, and it is fire-retardant, antistatic, withstand voltage, cold-resistant, heat-resisting all meet MT165-1995 standard-required, negative pressure air duct diameter 600mm, and the longest (air draught distance) can reach 100 m.
Dedusting fan is that the explosion-proof pull-out type of FBDC type is to the axial flow rotary booster in the utility model, its structural shape be mine explosion-proof type, both stage impellers to revolve, the compound noise elimination of outsourcing, motor be sealed in in the air channel, isolate with the weary wind in the air channel, fan impeller adopts special material to make, antistatic, antifriction spark, use safety, reliable, malleation air duct outlet air quantity is 250-300 m
3/ min, dedusting fan power is chosen to be 11KW, and exhaust air rate is 186～310m
3/ min, blast are 350-3850Pa.
Deduster water injection rate 400 L in the utility model, water consumption＜5L/min handles air quantity 150-250 m
3/ min, work noise≤85dB (A).
The utility model operating principle is:
One, crooked streamlined guide vane is downwards arranged in the casing of wet scrubber, make dusty gas directly impact the water surface, make big grit because effect of inertia falls into water tank, reach the purpose of primary dust removing.
Two, guide vane accelerates the air-flow that contains less grit, produces eddy current during by bending channel and fully collides the sedimentation that is hunted down with a large amount of water droplets, the water smoke that evoke, reaches the purpose of two-stage dust removal.
Three, dehydrator generates moisture film above dust-laden water droplet, water smoke in the air-flow are attached to, and reaches the effect that 3-stage dust-removal purifies air and dewaters.
Compared with prior art the beneficial effects of the utility model are, because the utility model with dedusting fan and the effective combination of deduster, has following effect:
One, layout uniqueness
Characteristics such as unique horizontal layout, end face is little, compact conformation, globality are strong form high-performance cleaner of new generation.
Two, safe and reliable
Deduster safety, reliable, adopting the explosion-proof pull-out type of FBDC type is power to the axial flow rotary booster, utilizes water to make cleanser, resistance is little, noise is low, explosion-proof, safety.
Three, mechanism advanced person
Give full play to water-bath, water droplet, three kinds of dedusting functions of moisture film, rely on inertia, collide, hold back, Blang's diffusion, cohesion etc. are used for catching the dust in the air-flow, purification work plane air improves operating environment.
Four, economize on resources
Adopted unique efficient, high-adaptability wet dust collection technology, water consumption is little, and the dewatering efficiency height can make water circulation use, and effective conserve water resource, is changed the water operating environment and can not polluted at regularly blowdown.
Five, assembling is convenient
Volume is little, in light weight, mobile easy for installation, according to the demand in user job place, the dust arrester that goes out various forms of different disposal air quantity capable of being combined satisfies user's use.
Six, dust removal efficiency height
Adopt the long weak point of pressing to take out ventilating and purifying air system, can effectively realize the purification on the spot of dust, particularly respirable dust is had higher efficiency of dust collection.
Description of drawings
Fig. 1 is the structural representation of a kind of coal driving face dust control by ventilation system in the utility model.
Fig. 2 is the structural representation of dust guard in the utility model.
Fig. 3 is that dust concentration contrasted schematic diagram before and after 8101 air ways used dust arrester.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, a kind of coal driving face dust control by ventilation system comprises development machine 2, tunneling machine cutting arm 1, negative pressure air duct 3, reprints sealing-tape machine 4, forced air duct 5 and dust arrester.
Dust arrester is installed on reprinting sealing-tape machine 4 runways of development machine 2, dust arrester comprises negative pressure air duct 3, dedusting fan 6, fan supporter 8, flexible air duct 10, deduster support 9 and deduster 7, negative pressure air duct 3 is communicated with the entrance of dedusting fan 6, dedusting fan 6 is installed on the fan supporter 8, the outlet of dedusting fan 6 is communicated with by flexible air duct 10 with deduster 7, and deduster 7 is installed on the deduster support 9.
Dedusting fan 6 is that the explosion-proof pull-out type of FBDC type is to the axial flow rotary booster.
Negative pressure air duct 3 is rubber-coated formula negative pressure air duct 3, and diameter is 600mm.
The power of dedusting fan 6 is 11KW, and exhaust air rate is 186～310m
3/ min, blast are 350-3850Pa.
Water injection rate＜5L/min in the casing, the processing wind speed is 250～300m
3/ min, work noise≤85dB.
Concrete installation steps are as follows:
One, dedusting fan 6 is installed
(1) earlier fan supporter 8 is stabilized on reprinting sealing-tape machine 4 runways of development machine 2;
(2) again dedusting fan 6 is fixed by bolts on the fan supporter 8.
Two, deduster 7 is installed
(1) earlier deduster support 9 is stabilized on reprinting sealing-tape machine 4 runways of development machine 2;
(2) again deduster 7 is stabilized on the deduster support 9;
(3) deduster 7 installation sites will be safely, avoid being subjected to mechanical damage;
(4) deduster 7 is installed and will be kept horizontal and vertical level by adjusting device;
(5) water injection rate will satisfy the requirement of best dust removing effects.
Three, negative pressure air duct 3 is installed
(1) negative pressure air duct 3 uses regulation in time to hang, adjust by air duct under the coal mine, must not leak out, and guarantee that the inlet scoop is far from termination 2-3m;
(2) be connected by the flexible air duct 10 of pipe nipple between dedusting fan 6 and the deduster 7; Negative pressure air duct 3 is connected with dedusting fan 6 air intakes, and suction port is apart from the about 40m of dust arrester place.
Concrete use operation is as follows:
One, selects the reasonably short ventilating and purifying air system of taking out of long pressure, based on forced ventilation, guarantee forced air duct 5 imports to the tunnel of dust arrester suction port minimum wind speed 0.15m/s, near work plane, be equipped with the short mode of taking out, dust laden air is sucked deduster 7 purified treatment on the spot, and the purification after the dedusting is distinguished and admirable to be discharged to the tunnel by dust arrester.
Two, forced booster is hung in the distance return aircourse and is not less than the 10m place, flexible air duct is hung non-pedestrian's side in the tunnel, the negative pressure air duct 3 of dust arrester is hung in tunnel pedestrian's side or is hung at the top, tunnel (with digging with connecing), and negative pressure air duct 3 adopts the negative pressure air duct 3 of diameter 600mm.
Three, dedusting fan 6 and deduster 7 are installed on reprinting sealing-tape machine 4 runways of development machine 2 in the dust arrester, and non-skid feature arranged, dedusting fan 6 is connected with deduster 7 air intakes by the flexible air duct 10 of pipe nipple, and deduster 7 generally is installed in dust arrester and is about the 40m place apart from the suction port distance.
Four, the flexible air duct 10 of forced booster is received the termination and is not more than the 5m place, after opening dedusting fan 6, flexible air duct 10 is disconnected at 20-30m place, distance termination, when dust arrester shuts down, the flexible air duct 10 that forced portable blower is disconnected connects again, guarantees the normal air feed in termination.
Five, the dust arrester suction port will be connected to the driving face termination, is advisable with 2-3m apart from the distance of termination.
When six, dust arrester moves, observe the water level situation at any time, guarantee that the water level of water tank meets the demands, behind the operation certain hour (about 1 day), put sewage and annotate clear water respectively once dust arrester.
Seven, dust arrester will be along with the reach in time of development machine 2 drivings, and the gas detection probe will be hung at place, dust arrester rigidity air duct inlet scoop, and the outage gas density is 1%.
Eight, adjust the air quantity of dust arrester, guarantee that the air quantity of dust arrester more than or equal to the actual air volume of dust accumulation point, makes high concentrate dust all enter deduster and purifies.
Nine, dedusting fan 6 is in operation, and must monitor gas in the air duct, if gas density surpasses at 3% o'clock, and should be according to the safety code predetermined processing of discharging local accumulation gas under the coal mine.
Concrete effect
As shown in Figure 3, install and used dust arrester with driving level 8101 fortune lanes, 8101 air ways, be that example is relatively used dust concentration situation of change before and after the dust arrester with 8101 air ways below, can draw after the 8101 air way use systems than the comparison before using as Fig. 3 that unit is mg among the figure
/m
3
Coal cutting exhales dust concentration to reduce by 89.4%, and the non-dust concentration of exhaling has reduced by 95.5%, and full dust concentration has reduced by 92.9 %.
Cut rock and exhale dust concentration to reduce by 89.4%, the non-dust concentration of exhaling has reduced by 95.5%, and full dust concentration has reduced by 92.8 %.
The driver exhales the position dust concentration to reduce by 83.3%, and the non-dust concentration of exhaling has reduced by 92.1%, and full dust concentration has reduced by 88.9%.
Machinery is coaling and is exhaled dust concentration to reduce by 59.2%, and the non-dust concentration of exhaling has reduced by 83.6%, and full dust concentration has reduced by 72.7%.
The bridge-type belt exhales dust concentration to reduce by 95%, and the non-dust concentration of exhaling has reduced by 97.7%, and full dust concentration has reduced by 96.7%.
Exhale dust concentration to reduce by 98.3% in the middle of the tunnel, the non-dust concentration of exhaling has reduced by 99.3%, and full dust concentration has reduced by 98.9%.
Comprehensively above-mentioned, the utility model can make the dust concentration of digging laneway and work plane significantly reduce, and effectively prevents and reduce the coal-dust explosion of the healthy anthraco-silicosis of harm operating personnel and threat personal safety.
The above only is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (8)
1. coal driving face dust control by ventilation system, it is characterized in that: comprise the dust arrester on the reprinting sealing-tape machine runway that is installed in development machine, described dust arrester comprises negative pressure air duct, dedusting fan, flexible air duct and deduster, described negative pressure air duct is communicated with the entrance of described dedusting fan, and the outlet of described dedusting fan is communicated with by described flexible air duct with described deduster.
2. a kind of coal driving face dust control by ventilation as claimed in claim 1 system, it is characterized in that: also comprise fan supporter, described dedusting fan is installed on the described fan supporter.
3. a kind of coal driving face dust control by ventilation as claimed in claim 1 system, it is characterized in that: also comprise the deduster support, described deduster is installed on the described deduster support.
4. a kind of coal driving face dust control by ventilation as claimed in claim 1 system, it is characterized in that: described dedusting fan is that the explosion-proof pull-out type of FBDC type is to the axial flow rotary booster.
5. a kind of coal driving face dust control by ventilation as claimed in claim 1 system, it is characterized in that: described deduster is wet scrubber, comprises casing and is arranged on dehydrator in the casing.
6. a kind of coal driving face dust control by ventilation as claimed in claim 1 system, it is characterized in that: described negative pressure air duct is rubber-coated formula negative pressure air duct, and diameter is 600mm.
7. a kind of coal driving face dust control by ventilation as claimed in claim 4 system, it is characterized in that: the power of described dedusting fan is 11kW, exhaust air rate is 186～310m
3/ min, blast are 350-3850Pa.
8. a kind of coal driving face dust control by ventilation as claimed in claim 5 system, it is characterized in that: water injection rate＜5L/min in the described casing, the processing wind speed is 250～300m
3/ min, work noise≤85dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015455 CN203145991U (en) | 2013-01-14 | 2013-01-14 | Ventilation and dust prevention system for coal tunneling working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015455 CN203145991U (en) | 2013-01-14 | 2013-01-14 | Ventilation and dust prevention system for coal tunneling working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145991U true CN203145991U (en) | 2013-08-21 |
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ID=48973527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320015455 Expired - Fee Related CN203145991U (en) | 2013-01-14 | 2013-01-14 | Ventilation and dust prevention system for coal tunneling working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145991U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075177A (en) * | 2013-01-14 | 2013-05-01 | 山西璐安矿业（集团）有限责任公司 | Ventilating and dust preventing system for coal heading face |
| CN103422876A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Environment-friendly coal mine underground ventilation and dedusting safety system |
| CN103422877A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Underground coal mine ventilation and dust removal safety system |
| CN105257331A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine wet type dust removing device |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
-
2013
- 2013-01-14 CN CN 201320015455 patent/CN203145991U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075177A (en) * | 2013-01-14 | 2013-05-01 | 山西璐安矿业（集团）有限责任公司 | Ventilating and dust preventing system for coal heading face |
| CN103422876A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Environment-friendly coal mine underground ventilation and dedusting safety system |
| CN103422877A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Underground coal mine ventilation and dust removal safety system |
| CN103422876B (en) * | 2013-09-01 | 2015-07-01 | 王永军 | Environment-friendly coal mine underground ventilation and dedusting safety system |
| CN105257331A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine wet type dust removing device |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140114 |