CN207297072U - Tunnelling dust prevention system - Google Patents
Tunnelling dust prevention system Download PDFInfo
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- CN207297072U CN207297072U CN201721345800.2U CN201721345800U CN207297072U CN 207297072 U CN207297072 U CN 207297072U CN 201721345800 U CN201721345800 U CN 201721345800U CN 207297072 U CN207297072 U CN 207297072U
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- air duct
- dust
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- digging machine
- mechanized digging
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Abstract
The utility model discloses a kind of tunnelling dust prevention system, including fully-mechanized digging machine spraying system, dust pelletizing system and tunnel spraying system；The water outlet of the fully-mechanized digging machine spraying system is installed on fully-mechanized digging machine, and the fully-mechanized digging machine spraying system connects water supply pipe；The dust pelletizing system includes positive pressure wind pipe, negative pressure air duct and dedusting fan；One end of the positive pressure wind pipe is towards meeting head on, other end connection air-supply pipeline；One end of the negative pressure air duct is towards meeting head on, other end connection dedusting fan；If the tunnel spraying system includes arterial highway water curtain, the whole section in the water curtain covering tunnel, each water curtain is disposed in the tunnel at dedusting fan outlet rear.The utility model has the advantage of：Using synthesis dust prevention system, dust concentration during fully-mechanized digging machine cutting rock is reduced, the visibility of driving place is improved, ensure that the health of worker, improve work efficiency, and dust explosion can be efficiently controlled, it is ensured that the safety in production in colliery.
Description
Technical field
It the utility model is related to the dust-proof field of tunnelling, more particularly to a kind of tunnelling dust prevention system.
Background technology
Use of the comprehensive digging equipment in coal production, improve rock gangway list into while, also generate a series of
Problem.The dust harzard of the wherein comprehensive pick of rock gangway is most important problem, and dust can make tunnel On The Deterioration of Visibility Over, makes worker in comprehensive pick
Machine-cut can not be engaged in other work when cutting rock, and can threaten to the health of worker, influence rock gangway comprehensive digging equipment
The popularization and application of change.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dust that can be reduced when fully-mechanized digging machine cuts rock
The tunnelling dust prevention system of concentration.
The utility model is to solve above-mentioned technical problem by the following technical programs：Tunnelling dust prevention system, including
Fully-mechanized digging machine spraying system, dust pelletizing system and tunnel spraying system；
The water outlet of the fully-mechanized digging machine spraying system is installed on fully-mechanized digging machine, and the fully-mechanized digging machine spraying system connects feed pipe
Road；
The dust pelletizing system includes positive pressure wind pipe (3), negative pressure air duct (4) and dedusting fan (5)；The positive pressure wind pipe (3)
One end towards meeting head on, other end connection air-supply pipeline；Towards meeting head on, other end connection removes for one end of the negative pressure air duct (4)
Dirt wind turbine (5)；
If the tunnel spraying system includes arterial highway water curtain (6), the water curtain (6) covers the whole section in tunnel,
Each water curtain (6) is disposed in the tunnel at the dedusting fan (5) outlet rear.
Technical solution as an optimization, the fully-mechanized digging machine spraying system includes internal spraying (1) and external spraying (2), described interior
The water outlet of spraying (1) is in the spherical arrangement of point-like on the cutterhead of fully-mechanized digging machine, and the water outlet of the external spraying (2) is in cutterhead
Rear in wire it is horizontally arranged.Internal spraying and external spraying combine, and dust-laying effect is good.
Technical solution as an optimization, the water supply pipe of fully-mechanized digging machine spraying system connection are divided into three branches, and first
Branch is directly connected to the external spraying (2), and the second branch cools down outer through oil cooler, cutting motor cooling jacket, Electric Machine at Pumping Station
Enter the external spraying (2) after set, the 3rd branch enters the internal spraying (1) after oil cooler.Also risen while dedusting
To the effect of cooling pick.
Technical solution as an optimization, the positive pressure wind pipe (3) include first for air duct (31), control dirt air duct (32) and the
Two for air ducts (33), described first for air duct (31) air outlet towards meeting head on, described second for air duct (33) connection air duct
Road, the control dirt air duct (32) are connected on described first and supply air duct (31) and described second to supply between air duct (33), the control dirt
Side outlet is provided with the side wall of air duct (32).
Air feed is shunted by controlling dirt air duct, an air feed part is continued to blow to and is met head on to play sparse dust and harmful
The effect of gas, the side outlet of another part from control dirt air duct utilize the wall attachment effect that air-flow has in flowing along tunnel side
Wall flows out, produce immediately it is spiral distinguished and admirable, it is spiral it is distinguished and admirable rotated along tunnel side wall, transversal whole drift section, forms a stifled " wind
Wall ", " brattice " constantly rotation elapse forward, press to boring head, dust-contained airflow is locked in regional area of meeting head on, constantly
Negative pressure air duct is inhaled into, dust-contained airflow has thus effectively been blocked and has outwards stretched, realized the controllability to dust.
Technical solution as an optimization, the positive pressure wind pipe (3) are equipped with volume adjusting apparatus.Pass through volume adjusting apparatus
First, which can be adjusted, supplies the air output of air duct air outlet to be slightly less than the suction air volume of dedusting fan, to ensure pick-up performance.
Technical solution as an optimization, the negative pressure air duct (4) include dust suction horn mouth (41) and skeleton air duct (42), institute
Dust suction horn mouth (41) is stated towards meeting head on, the horn mouth (41) is equipped with protection network, and the skeleton air duct (42) is connected to institute
State between dust suction horn mouth (41) and the dedusting fan (5).By the dust-contained airflow that dust suction horn mouth sucks through skeleton air duct into
Enter and dedusting is carried out in dedusting fan, protection network prevents debris from entering in skeleton air duct.
Technical solution as an optimization, the dust suction horn mouth (41) are fixed on the cover board of fully-mechanized digging machine, the skeleton wind
Cylinder (42) is supported on fully-mechanized digging machine by air duct stent (7) and reprints above the rack of belt feeder, and the dedusting fan (5) is fixed on wind
On machine special-purpose vehicle (8), the wind turbine special-purpose vehicle (8) is located on the tail bumper bracket for reprinting belt feeder, the wind turbine special-purpose vehicle (8)
The rack for reprinting belt feeder is connected by connecting rod (9).Negative pressure wind will be inhaled by air duct stent, wind turbine special-purpose vehicle and connecting rod
Cylinder, dedusting fan and fully-mechanized digging machine, the rack for reprinting belt feeder, tail bumper bracket are connected as a single entity, and when walking before and after fully-mechanized digging machine, bear
Pressure air duct and dedusting fan can follow fully-mechanized digging machine to walk.
Technical solution as an optimization, the dedusting fan (5) includes dedusting air duct (51) and dust-removing box (52), described
The both ends of dedusting air duct (51) connect the negative pressure air duct (4) and the dust-removing box (52), the dedusting air duct (51) respectively
In be equipped with two wind turbines (53) rotating against of impeller, be equipped with water spout (54) between the impeller of two wind turbines (53), it is described to remove
It is equipped with dust extractor (55) and demister (56) in dirt babinet (52) successively from the inlet to the outlet.
After dedusting fan is opened, dust laden air is sucked into dedusting air duct using the high negative pressure that wind turbine produces, dust laden air exists
By water spraying atomization between two high-speed rotating impellers, muddy water, cloud are formed；Air-flow entrainment muddy water, cloud enter dust-removing box
In, caught by dust extractor and form mud drop；The water mist for not forming mud drop passes through demister under the entrainment of air-flow, is searched by demister
Collect and form water droplet；The sewage eventually formed flows out dust-removing box by the blowdown funnel of dust-removing box bottom.
Technical solution as an optimization, the water curtain (6) include frame (61), Air Filter (62), injection spray pipe (63) and
Fog-spray nozzle (64)；The frame (61) includes the outline border being supported in the whole section in tunnel and the doorframe being connected in outline border；Institute
Air Filter (62) is stated to be connected in outline border and doorframe；The injection spray pipe (63) is the arc that Open Side Down, the injection spray pipe (63)
On be connected with several fog-spray nozzles (64)；The injection spray pipe (63) is located at the frame (61) close to the side in direction of meeting head on, institute
Fog-spray nozzle (64) is stated towards the Air Filter (62).
Water is uniformly sprayed onto on Air Filter by fog-spray nozzle, and Air Filter has water imbibition in itself, can keep certain humidity.By
The mine dust to suspend in air has hydrophily, so when mine dust passes through arc water curtain and Air Filter, is stopped first by arc water curtain
Part, is then attached on Air Filter and has been only absorbed by the water part again, so as to achieve the purpose that to reduce mine dust density.
Technical solution as an optimization, the water curtain (6) are equipped with three altogether, and the doorframe of each water curtain (6) mutually staggers
Set.Ensure dust-proof effect.
The utility model has the advantage of：Using synthesis dust prevention system, dust when reducing fully-mechanized digging machine cutting rock is dense
Degree, improves the visibility of driving place, ensure that the health of worker, improve work efficiency, and can effectively control
Dust explosion processed, it is ensured that the safety in production in colliery.
Brief description of the drawings
Fig. 1 is the schematic top plan view of the utility model tunnelling dust prevention system.
Fig. 2 is the schematic side view of the utility model negative pressure air duct and dedusting fan.
Fig. 3 is the internal structure schematic diagram of the utility model dedusting fan.
Fig. 4 is the schematic front view of the utility model water curtain.
Fig. 5 is the schematic side view of the utility model water curtain.
Embodiment
As shown in Figs. 1-5, tunnelling dust prevention system, including fully-mechanized digging machine spraying system, dust pelletizing system and tunnel spraying system
Unite, positive pressure breathing devices are used at driver of roadheader.
Fully-mechanized digging machine spraying system includes internal spraying 1 and external spraying 2, and the water outlet of internal spraying 1 is on the cutterhead of fully-mechanized digging machine
In the spherical arrangement of point-like, the water outlet of external spraying 2 is horizontally arranged in wire at the rear of cutterhead.
Fully-mechanized digging machine spraying system connects water supply pipe, and the manifold of water supply pipe is equipped with the water quality more than or equal to 400 mesh
Filter, water supply pipe are three branches in fully-mechanized digging machine punishment, and the first branch is directly connected to external spraying 2, the second branch and the 3rd
Pressure reducing valve of the branch through 1.0MPa enters oil cooler, and the second branch is through oil cooler, cutting motor cooling jacket, Electric Machine at Pumping Station
Enter external spraying 2 after cooling jacket, the 3rd branch enters internal spraying 1 after oil cooler.
Dust pelletizing system includes positive pressure wind pipe 3, negative pressure air duct 4, dedusting fan 5, air duct stent 7, wind turbine special-purpose vehicle 8 and connection
Bar 9.
Positive pressure wind pipe 3 includes first and supplies air duct 33 for air duct 31, control dirt air duct 32 and second, and first supplies the outlet air of air duct 31
Mouthful towards meeting head on, second connects air-supply pipeline for air duct 33, and second is equipped with volume adjusting apparatus for air duct 33, controls dirt air duct 32
First is connected on for air duct 31 and second between air duct 33, side outlet, the first air feed are provided with the side wall of control dirt air duct 32
Cylinder 31, control dirt air duct 32 and second are for the unified hanging of air duct 33 on the side wall in tunnel.
Negative pressure air duct 4 includes dust suction horn mouth 41 and skeleton air duct 42, and dust suction horn mouth 41 is towards meeting head on, dust suction horn mouth
41 are equipped with the protection network that mesh specification is 5~10mm, skeleton air duct 42 be connected to dust suction horn mouth 41 and dedusting fan 5 it
Between.
The side outlet of dirt air duct 32 is controlled away from the 10~15m that meets head on, the air outlet of dedusting fan 5 is away from the lateral of control dirt air duct 32
10~30m is exported, second supplies the volume adjusting apparatus on air duct 33 away from the 50~120m that meets head on.
Dust suction horn mouth 41 is fixed on the cover board of fully-mechanized digging machine, and dust suction horn mouth 41 is less than or equal to away from fully-mechanized digging machine cutterhead
5m, skeleton air duct 42 are supported on fully-mechanized digging machine by air duct stent 7 and reprint above the rack of belt feeder, and dedusting fan 5 is fixed on wind
On machine special-purpose vehicle 8, wind turbine special-purpose vehicle 8 is located on the tail bumper bracket for reprinting belt feeder, and wind turbine special-purpose vehicle 8 is connected by connecting rod 9
Switch through the rack for carrying belt feeder.
Dedusting fan 5 includes dedusting air duct 51 and dust-removing box 52, the both ends difference connecting framework air duct of dedusting air duct 51
42 and dust-removing box 52, two wind turbines 53 that impeller rotates against are equipped with dedusting air duct 51, between the impeller of two wind turbines 53
Equipped with water spout 54, dust extractor 55 and demister 56 are equipped with successively from the inlet to the outlet in dust-removing box 52.
Water curtain 6 includes frame 61, Air Filter 62, injection spray pipe 63 and fog-spray nozzle 64；Frame 61 includes being supported on whole lane
Outline border in road section and the doorframe being connected in outline border；Air Filter 62 is connected in outline border and doorframe；Injection spray pipe 63 is opening
Downward arc, is connected with seven fog-spray nozzles 64 on injection spray pipe 63；Injection spray pipe 63 is located at the side in the close direction of meeting head on of frame 61,
Fog-spray nozzle 64 is towards Air Filter 62.
Frame 61 is made of the stainless steel tube welding of DN15, is carried out preservative treatment to steel pipe, is consolidated steel pipe with 12# iron wires
It is scheduled on the bar-mat reinforcement in tunnel.
The crooked radian at the top of frame 61 can be with combining closely at the top of tunnel, and frame 61 presses tunnel section design, it is ensured that
It is close to tunnel, is not more than 50mm with the gap of tunnel perisporium.
The mesh specification of Air Filter 62 is 2 × 2mm, is fixed on by band on the steel pipe of frame 61.
Injection spray pipe 63 is using the stainless steel tube of DN15, and the distance of injection spray pipe 63 and Air Filter 62 is 0.3~0.5m, fog-spray nozzle
63 and the angle of perpendicular are 80 °.
Tunnel spraying system is equipped with three water curtains 6 altogether, and each water curtain 6 is disposed on dedusting fan 5 and exports rear
In tunnel, the mutual stagger setting of doorframe of each water curtain 6, water curtain 6 away from the 100~150m that meets head on, between adjacent water curtain 6 away from
From for 5m.
The utility model tunnelling dust prevention system in use, first open fully-mechanized digging machine spraying system and tunnel spraying system,
It is then turned on dedusting fan 5；Dedusting fan 5 is first closed during shutdown, then allows fully-mechanized digging machine spraying system and tunnel spraying system to continue
Work five minutes, turns off water supply pipe.
Dedusting fan 5 can only be used when fully-mechanized digging machine is cut and goes out rock, and other time forbids to run；Fully-mechanized digging machine is cut
During, it is responsible for adjusting volume adjusting apparatus by special messenger, the air output for making the first confession 31 air outlet of air duct is 5 air draught of dedusting fan
The 70% of amount, to ensure pick-up performance；When dedusting fan 5 is stopped, adjusting volume adjusting apparatus makes positive pressure wind pipe 3 recover just
Normal open wind, to ensure volume of air supply of meeting head on；When gas density is more than 0.8%, forbid to carry out dedusting work using dedusting fan 5,
The safety-type electrical equipment power supply of whole non-intrinsically safes must be cut off immediately, recover forced ventilation mode immediately.
The use of the utility model tunnelling dust prevention system, reduces the environment dust concentration in tunnel to greatest extent.
By at the scene be not used the system and using the system when distinguish dust measuring as a result, it was confirmed that big gun head dust-laying effect for 70% with
On, dust-laying effect is more than 96% at driver, and the dust-laying effect in the tunnel at dedusting fan outlet rear is more than 92%.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
- A kind of 1. tunnelling dust prevention system, it is characterised in that：Spray including fully-mechanized digging machine spraying system, dust pelletizing system and tunnel and be System；The water outlet of the fully-mechanized digging machine spraying system is installed on fully-mechanized digging machine, and the fully-mechanized digging machine spraying system connects water supply pipe；The dust pelletizing system includes positive pressure wind pipe (3), negative pressure air duct (4) and dedusting fan (5)；The one of the positive pressure wind pipe (3) End face is to meeting head on, other end connection air-supply pipeline；One end of the negative pressure air duct (4) is towards meeting head on, other end connection dedusting wind Machine (5)；If the tunnel spraying system includes arterial highway water curtain (6), the whole section in water curtain (6) the covering tunnel, each water Curtain (6) is disposed in the tunnel at the dedusting fan (5) outlet rear.
- 2. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The fully-mechanized digging machine spraying system includes interior spray Mist (1) and external spraying (2), the water outlet of the internal spraying (1) is in the spherical arrangement of point-like on the cutterhead of fully-mechanized digging machine, described outer The water outlet of spraying (2) is horizontally arranged in wire at the rear of cutterhead.
- 3. tunnelling dust prevention system as claimed in claim 2, it is characterised in that：The confession of the fully-mechanized digging machine spraying system connection Water lines are divided into three branches, and the first branch is directly connected to the external spraying (2), and the second branch is through oil cooler, cutting motor Enter the external spraying (2) after cooling jacket, Electric Machine at Pumping Station cooling jacket, the 3rd branch enters the interior spray after oil cooler Mist (1).
- 4. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The positive pressure wind pipe (3) includes first and supplies Air duct (31), control dirt air duct (32) and second are described towards meeting head on for air duct (33), the air outlet of the first confession air duct (31) Second is connected on described first for air duct (31) and described second for air duct (33) connection air-supply pipeline, the control dirt air duct (32) For between air duct (33), side outlet is provided with the side wall of the control dirt air duct (32).
- 5. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The positive pressure wind pipe (3) is equipped with air quantity Regulating device.
- 6. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The negative pressure air duct (4) includes dust suction loudspeaker Mouth (41) and skeleton air duct (42), for the dust suction horn mouth (41) towards meeting head on, the horn mouth (41) is equipped with protection network, The skeleton air duct (42) is connected between the dust suction horn mouth (41) and the dedusting fan (5).
- 7. tunnelling dust prevention system as claimed in claim 6, it is characterised in that：The dust suction horn mouth (41) is fixed on comprehensive On the cover board of pick machine, the skeleton air duct (42) is supported on fully-mechanized digging machine by air duct stent (7) and reprints above the rack of belt feeder, The dedusting fan (5) is fixed on wind turbine special-purpose vehicle (8), and the tail that the wind turbine special-purpose vehicle (8) is located at reprinting belt feeder delays Rush on frame, the wind turbine special-purpose vehicle (8) connects the rack for reprinting belt feeder by connecting rod (9).
- 8. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The dedusting fan (5) includes dedusting wind Cylinder (51) and dust-removing box (52), the both ends of the dedusting air duct (51) connect the negative pressure air duct (4) and the dedusting respectively Babinet (52), two wind turbines (53) that impeller rotates against, the impeller of two wind turbines (53) are equipped with the dedusting air duct (51) Between be equipped with water spout (54), be equipped with dust extractor (55) and demister successively from the inlet to the outlet in the dust-removing box (52) (56)。
- 9. tunnelling dust prevention system as claimed in claim 1, it is characterised in that：The water curtain (6) include frame (61), Air Filter (62), injection spray pipe (63) and fog-spray nozzle (64)；The frame (61) includes the outline border being supported in the whole section in tunnel With the doorframe being connected in outline border；The Air Filter (62) is connected in outline border and doorframe；The injection spray pipe (63) for opening to Under arc, be connected with several fog-spray nozzles (64) on the injection spray pipe (63)；The injection spray pipe (63) is located at the frame (61) close to the side in direction of meeting head on, the fog-spray nozzle (64) is towards the Air Filter (62).
- 10. tunnelling dust prevention system as claimed in claim 9, it is characterised in that：The water curtain (6) is equipped with three altogether, The mutual stagger setting of doorframe of each water curtain (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345800.2U CN207297072U (en) | 2017-10-19 | 2017-10-19 | Tunnelling dust prevention system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345800.2U CN207297072U (en) | 2017-10-19 | 2017-10-19 | Tunnelling dust prevention system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297072U true CN207297072U (en) | 2018-05-01 |
Family
ID=62273234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721345800.2U Active CN207297072U (en) | 2017-10-19 | 2017-10-19 | Tunnelling dust prevention system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514275A (en) * | 2017-10-19 | 2017-12-26 | 淮南矿业(集团)有限责任公司 | Tunnelling dust prevention system |
| CN109958472A (en) * | 2019-03-20 | 2019-07-02 | 山东黄金金创集团有限公司 | A kind of tunnelling dust removal by ventilation cleaning equipment |
-
2017
- 2017-10-19 CN CN201721345800.2U patent/CN207297072U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514275A (en) * | 2017-10-19 | 2017-12-26 | 淮南矿业(集团)有限责任公司 | Tunnelling dust prevention system |
| CN109958472A (en) * | 2019-03-20 | 2019-07-02 | 山东黄金金创集团有限公司 | A kind of tunnelling dust removal by ventilation cleaning equipment |
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