CN214424540U - Dust fall system is transported to violent small cross section tunnel excavation secondary of argillaceous rock of sanding - Google Patents
Dust fall system is transported to violent small cross section tunnel excavation secondary of argillaceous rock of sanding Download PDFInfo
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- CN214424540U CN214424540U CN202120303600.0U CN202120303600U CN214424540U CN 214424540 U CN214424540 U CN 214424540U CN 202120303600 U CN202120303600 U CN 202120303600U CN 214424540 U CN214424540 U CN 214424540U
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Abstract
The utility model provides a dust fall system is transported to severe little section tunnel excavation secondary of desertification dolomite, including the cantilever entry driving machine, the afterbody of cantilever entry driving machine is provided with fortune cinder car, is provided with the conveyer belt between the slag discharge outlet of cantilever entry driving machine afterbody and the fortune cinder car, is provided with water spray dust device on the conveyer belt, and water spray dust device's water spray/spraying end sets up on conveyer belt rear walking support. The problems that the traditional method is high in labor intensity, low in efficiency, difficult to control over undermining, diffused in-tunnel dust, asynchronous in excavation and deslagging processes and high in safety risk are solved. Belongs to the field of tunnel construction.
Description
Technical Field
The utility model relates to a dust fall system is transported to severe little section tunnel excavation secondary of desertification dolomite belongs to tunnel construction technical field.
Background
At present, in the tunnel work progress, the overwhelming majority still adopts traditional brill to explode the method technology, and not only workman intensity of labour is big, efficient, surpass the owe dig be difficult to control, the interior dust of hole is pervasive, the excavation is deslagged the process and is asynchronous, and the brill explodes the disturbance country rock moreover and causes higher safety risk, and the urgent need seeks a safe effective, dust fall is effectual, the excavation system that the excavation is gone on in step of slagging tap in order to solve above-mentioned problem.
Disclosure of Invention
The utility model provides a dust fall system is transported to severe little section tunnel excavation secondary of desertification dolomite to solve that traditional method intensity of labour is big, efficient, the super owe dig be difficult to control, the hole in the dust fill, the excavation process of slagging tap is asynchronous, and the higher problem of safe risk.
In order to achieve the purpose, the secondary transportation dust-settling system for excavation of the severe desertification dolomite small-section tunnel comprises a cantilever excavator, wherein a slag car is arranged at the tail part of the cantilever excavator, a conveying belt is arranged between a slag discharge outlet at the tail part of the cantilever excavator and the slag car, a water spraying dust-settling device is arranged on the conveying belt, and a water spraying/spraying end of the water spraying dust-settling device is arranged on a walking support behind the conveying belt.
The water spray dust settling device comprises a high-pressure water tank, a water pipe and a spray head, wherein the spray head is arranged on the lower side of the discharge position of the conveying belt, the spray head is connected with a water outlet of the high-pressure water tank through a water pipe, a valve is arranged at the water outlet of the high-pressure water tank or on the water pipe, the high-pressure water tank is fixed on the inner side of the lower support of the conveying belt, and the water pipe extends to the spray head along the inner side of the lower support of the conveying belt and the lower side of the conveying belt.
In the small-section tunnel excavation system, a dust removal device is further mounted on the main body structure of the cantilever excavator, the dust collection end of the dust removal device extends to the front end of the cantilever excavator, and the dust removal device is a KCS type mining wet dust removal fan;
compared with the prior art, the utility model discloses can cut off in succession, load, transport, excavate and slag tap and go on in step, remove dust/dust fall through dust collector and water spray dust fall device, the dual dust removal guarantee, safety ring protects, and the efficiency of construction is high, save time, mobility is strong, and the progress is fast, improves work efficiency by a wide margin; the overbreak and undermining control effect is good, and the disturbance to surrounding rocks is small; the mechanical operation efficiency is high, the manual excavation operation is reduced, and the labor intensity of workers is effectively reduced; the safety risk is small and the adaptability is strong without using initiating explosive devices; after the improvement is added with dust removal equipment, the dust of excavation operation is low, and the method is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
To further clarify the objects, technical solutions and advantages of the present invention, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings.
Examples
Referring to fig. 1, the embodiment provides a dust fall system is transported to violent little section tunnel excavation secondary of desertification dolomite, including cantilever entry driving machine 1, the afterbody of cantilever entry driving machine 1 is provided with fortune slag car 2, be provided with conveyer belt 3 between the slag discharge outlet of cantilever entry driving machine 1 afterbody and fortune slag car 2, be provided with water spray dust device 4 on the conveyer belt 3, and the water spray/spraying end of water spray dust device 4 sets up in the 3 ejection of compact departments of conveyer belt above the 2 car hoppers of fortune slag car, cantilever entry driving machine 1 is structural still installs dust collector 5, and dust collector 5's dust absorption end extends the front end department of cantilever entry driving machine 1, dust collector 5 is the mining wet-type dust exhausting fan of KCS type.
The water spraying dust falling device 4 comprises a high-pressure water tank 41, a water pipe 42 and a spray head 43, wherein the spray head 43 is arranged on the lower side of the discharging position of the conveying belt 3, the spray head 43 is connected with the water outlet of the high-pressure water tank 41 through the water pipe 42, a valve is arranged at the water outlet of the high-pressure water tank 41 or on the water pipe 42, the high-pressure water tank 41 is fixed on the inner side of the lower support of the conveying belt 3, and the water pipe 42 extends to the spray head 43 along the inner side of the lower support of the conveying belt 3 and the lower side of the conveying belt 3.
The cantilever type heading machine 1 has high dust concentration and low visibility in the excavation process, not only influences the tunnel operation efficacy of the heading machine, but also has certain influence on the health of operators in the tunnel. In view of this, a KCS type mining wet dust removal fan is additionally arranged above the development machine body, and the dust removal fan mainly comprises a draw-out type explosion-proof local fan, a rack and a dust catcher. The working principle of the KCS type mining wet dust removal fan is as follows: the dust-containing air is sucked (pressed) into the dust catcher by the power of the fan, when passing through the vibrating wire filter, the water sprayer arranged in the incoming flow direction sprays on the vibrating wire filter plate, and the fiber attached with the water curtain can wet, increase the weight or coagulate and retain the dust. Meanwhile, the passing dust-containing gas makes the fiber vibrate under the impact of the gas flow, the fusion of water mist particles and dust in the dust-containing gas is strengthened, the capture of fine dust is improved, the self-cleaning capacity of the fiber of the vibrating wire filter is improved, and the sprayer continuously sprays to the filter, so that the dust-containing gas passing through the filter is changed into wet dust-containing liquid gas flow, the dust-containing liquid gas flow forms high-speed rotating liquid gas flow through a swirler vane, the dust-containing water mist is thrown to the inner wall of the dewatering cylinder under the action of centrifugal force to form sewage flow, and the sewage flow flows out of a lower discharge outlet of a dewatering ring or enters a circulating filter water tank to be recycled through a spray pump station.
During the use, cut the excavation through cantilever entry driving machine 1 to tunnel excavation face earlier, collect the dregs through conveyer belt 3 and fortune slag car 2 when excavating to remove dust/dust fall through dust collector 5 and water spray dust device 4, the dual dust removal guarantee, safety ring protects, and the efficiency of construction is high.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a dust fall system is transported to violent little section tunnel excavation secondary of desertification dolomite, its characterized in that: the slag conveying device comprises a cantilever excavator (1), wherein a slag conveying vehicle (2) is arranged at the tail part of the cantilever excavator (1), a conveying belt (3) is arranged between a slag discharge outlet at the tail part of the cantilever excavator (1) and the slag conveying vehicle (2), a water spraying dust falling device (4) is arranged on the conveying belt (3), and a water spraying/atomizing end of the water spraying dust falling device (4) is arranged at a discharge part of the conveying belt (3) above a hopper of the slag conveying vehicle (2).
2. The secondary transportation and dust fall system for excavation of the severe desertification dolomite small-section tunnel according to claim 1, characterized in that: water spray dust device (4) include high pressure water tank (41), water pipe (42) and shower nozzle (43), conveyer belt (3) ejection of compact department that shower nozzle (43) set up in the downside, shower nozzle (43) lead to pipe (42) link to each other with the delivery port of high pressure water tank (41), and be provided with the valve on delivery port department or water pipe (42) of high pressure water tank (41), high pressure water tank (41) are fixed in the inboard of conveyer belt (3) lower part support, inboard and the downside of conveyer belt (3) lower part support are followed in water pipe (42) extend to shower nozzle (43) department.
3. The secondary transportation and dust fall system for excavation of the severe desertification dolomite small-section tunnel according to claim 1, characterized in that: the main structure of the cantilever excavator (1) is further provided with a dust removal device (5), the dust collection end of the dust removal device (5) extends to the front end of the cantilever excavator (1), and the dust removal device (5) is a KCS type mining wet dust removal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120303600.0U CN214424540U (en) | 2021-02-03 | 2021-02-03 | Dust fall system is transported to violent small cross section tunnel excavation secondary of argillaceous rock of sanding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120303600.0U CN214424540U (en) | 2021-02-03 | 2021-02-03 | Dust fall system is transported to violent small cross section tunnel excavation secondary of argillaceous rock of sanding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214424540U true CN214424540U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120303600.0U Active CN214424540U (en) | 2021-02-03 | 2021-02-03 | Dust fall system is transported to violent small cross section tunnel excavation secondary of argillaceous rock of sanding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214424540U (en) |
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2021
- 2021-02-03 CN CN202120303600.0U patent/CN214424540U/en active Active
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