CN210068231U - Multistage dust pelletizing system of open bimodulus shield construction usefulness of soil pressure - Google Patents
Multistage dust pelletizing system of open bimodulus shield construction usefulness of soil pressure Download PDFInfo
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- CN210068231U CN210068231U CN201920992950.5U CN201920992950U CN210068231U CN 210068231 U CN210068231 U CN 210068231U CN 201920992950 U CN201920992950 U CN 201920992950U CN 210068231 U CN210068231 U CN 210068231U
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Abstract
The utility model discloses a multistage dust pelletizing system that soil pressure/open bimodulus shield structure construction was used has solved among the prior art 6m level soil pressure/open bimodulus shield structure or the more problem of dust in the hard rock TBM tunnel. The utility model comprises a front dust-generating part spray dust-removing system, a dust dispersion route dust-removing system and a rear dust-generating part air pipe dust-removing system which are arranged in the shield machine in sequence; the front dusting part spray dedusting system comprises a first spray dedusting device arranged on the soil bin partition plate; the dust dispersion route dust settling system comprises a dust removal and cooling device and a second spray dust removal device, the dust removal and cooling device is arranged at the central hob, and the second spray dust removal device is arranged at a slag outlet of the driving box; and the dust collection part of the air pipe dust collection system at the rear dust rising part corresponds to the main machine belt conveyor. The utility model discloses reduce the dust volume, dust transmission process from the dust rising and stop and reduce dust and spread, go out the dirt mouth and inhale away suspension dust, realize multistage blocking and dust fall, reduce the tunnel and contain the dust volume.
Description
Technical Field
The utility model relates to a bimodulus shield constructs construction technical field, especially indicates a multistage dust pelletizing system of soil pressure/open bimodulus shield construction usefulness.
Background
At present, a 6 m-grade soil pressure/open dual-mode shield or hard rock TBM at home and abroad is limited in space at a main machine, most of dust removing air pipes are arranged above a front shield partition plate, the dust removing effect is not ideal, and dust generated from the upper parts of a driving box and a main machine belt conveyor is generally dispersed at an assembling machine and an equipment bridge. Even if the shield machine with larger diameter is provided with a special dust absorption air pipe at the main drive, the problem of dust dispersion along the rotating speed of the belt conveyor is not solved by the arrangement of water spraying at the slag outlet of the drive box. This phenomenon has seriously caused a severe construction environment in the tunnel: the breathing air is turbid, the observation sight is fuzzy, and the operations of assembling duct pieces in the tunnel, performing secondary grouting and the like by constructors are severely restricted. The factors cause great harm to the health and the mind of constructors, indirectly influence the construction efficiency and increase the risk of construction accidents.
SUMMERY OF THE UTILITY MODEL
To not enough among the above-mentioned background art, the utility model provides a multistage dust pelletizing system that soil pressure/open bimodulus shield structure construction was used has solved among the prior art 6m level soil pressure/open bimodulus shield structure or hard rock TBM can't arrange the dust removal tuber pipe in finite space, the more problem of dust in the tunnel.
The technical scheme of the utility model is realized like this: a multistage dust removal system for earth pressure/open double-mode shield construction comprises a front dust-rising part spray dust removal system, a dust dispersion route dust removal system and a rear dust-rising part air pipe dust removal system which are sequentially arranged in a shield machine; the front dusting part spray dedusting system comprises a first spray dedusting device arranged on the soil bin partition plate; the dust dispersion route dust settling system comprises a dust removal and cooling device and a second spray dust removal device, the dust removal and cooling device is arranged at the central hob, and the second spray dust removal device is arranged at a slag outlet of the driving box; and the dust collection part of the air pipe dust collection system at the rear dust rising part corresponds to the main machine belt conveyor.
The second spray dust removal device comprises a rubber dust baffle plate, a spray assembly and a dust removal chain, wherein the rubber dust baffle plate, the spray assembly and the dust removal chain are arranged on the driving box, the rubber dust baffle plate is positioned at the front part of the driving box, the dust removal chain is positioned at the rear part of the driving box, and the spray assembly is positioned between the rubber dust baffle plate and the dust removal chain.
The first spray dust removal device is a water mist nozzle assembly, the water mist nozzle assembly is connected with an external water source through a water pipe, and at least one group of water mist nozzle assemblies are arranged on the soil bin partition plate.
The rear dusting position air pipe dust collection system comprises a special-shaped air pipe assembly, the front end of the special-shaped air pipe assembly corresponds to the main belt conveyor, the special-shaped air pipe assembly extends backwards to penetrate through the assembling machine and is connected with a negative pressure soft air pipe assembly arranged on the assembling machine, the rear part of the special-shaped air pipe assembly is connected with a dry dust collector and a dust removal fan, and the dry dust collector and the dust removal fan are respectively arranged on the trailer.
The special-shaped air pipe assembly comprises a cambered air pipe, a rectangular air pipe and a circular air pipe, the cambered air pipe is connected with the rectangular air pipe through a first transition connector, the rectangular air pipe is connected with the circular air pipe through a second transition connector, the cambered air pipe is located above the host belt conveyor, and the circular air pipe is arranged on the equipment bridge in a penetrating mode.
The lower surface of the cambered surface air pipe is provided with a plurality of dust suction holes, and the negative pressure soft air pipe assembly adopts a telescopic negative pressure soft air pipe.
The tail part of the main belt conveyor is provided with at least one group of third dust removal and spraying devices, and the third dust removal and spraying devices are positioned at the transferring and slag discharging positions of the main belt conveyor and the rear matched belt conveyor.
The third dust removal spraying device is a water mist spray head component, and the water mist spray head component is connected with an external water source through a water pipe.
The utility model discloses reduce from the dusting department and play dirt volume, dust transmission process and block and reduce dust and spread, go out the dirt mouth and inhale away suspension dust, realize that the multistage blocks and the dust fall, improve dust collection efficiency, the dust content in the greatly reduced tunnel improves operational environment. The utility model discloses can accomplish the tuber pipe in finite space and arrange, simple structure, with low costs, dust removal effect is good, improves soil pressure/open bimodulus shield greatly and constructs the construction environment under open mode, is the big innovation that tunnel construction removed dust, has higher spreading value.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic layout diagram of the first spray dust removal device of the present invention.
Fig. 3 is a schematic layout of the second spray dust collector of the present invention.
Fig. 4 is the layout schematic diagram of the special-shaped air pipe assembly of the present invention.
Fig. 5 is a cross-sectional view of the arc-shaped air duct and a distribution diagram of dust-collecting holes.
Fig. 6 is a schematic layout view of the third spray dust collector of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 to 3, in embodiment 1, a multistage dust removal system for an earth pressure/open dual-mode shield construction is found through research and field observation that there are two main sources of large dust in the earth pressure/open dual-mode shield in the open-mode construction: dusting and dust dispersion. The dust-generating position is mainly a slag outlet of the driving box and a slag outlet of the main belt conveyor and a slag receiving position at the tail part of the rear matched belt conveyor; the dust dispersion part is mainly the dust dispersion on the upper parts of the main belt conveyor and the rear matched belt conveyor due to the rotating speed. An effective dust removal mode is established for different dust-rising reasons, and the multistage dust removal system for the earth pressure/open dual-mode shield construction comprises a spray dust removal system at the front dust-rising part, a dust dispersion route dust removal system and an air pipe dust removal system at the rear dust-rising part, which are sequentially arranged in a shield machine 3; the front dust-raising part spray dust removal system comprises a first spray dust removal device 2 arranged on a soil bin partition plate 1, the first spray dust removal device 2 is a water mist spray head assembly, the water mist spray head assembly is connected with an external water source through a water pipe, at least one group of water mist spray head assemblies are arranged on the soil bin partition plate 1, a plurality of water mist spray head assemblies can be arranged on site, and the spray area is increased. When the shield tunneling machine tunnels in hard rock or in an open mode, the cutter head rotates to cut the tunnel face, and a large amount of dust is generated in the process that the cut slag soil falls onto the main belt conveyor 5 along the slag chute. If dust fall measures are not taken, dust can be rapidly diffused to the rear assembled duct piece area along with the rotating speed of the main belt conveyor 5. Therefore, the water mist is sprayed to the soil bin through the multiple groups of first spray dust removal devices, the sprayed mist water mist and dust are condensed, and the purpose of reducing the dust in the soil bin is achieved to the maximum extent. Dust dispersion route dust fall system includes dust removal heat sink 4 and second spray dust collector 6, and dust removal heat sink 4 sets up in central hobbing cutter 17 department, and the 5 afterbody regions of belt feeder that are located the drive box center are the main passageway that dust spreads the rear portion, for reducing dust diffusion add dust removal heat sink 4 in central hobbing cutter department, both reduce partly dust, reach central hobbing cutter cooling purpose again. The second spray dust removal device 6 is arranged at the slag outlet of the driving box 18, and simultaneously, the dust discharge amount can be greatly reduced through the dust blocking and dust removing processes of the second spray dust removal device. The dust collecting part of the air pipe dust collecting system at the rear dust-rising part corresponds to the main belt conveyor 5, and the dust at the rear dust-rising part is sucked out through the air pipe dust collecting system.
Preferably, the second spray dust removal device 6 comprises a rubber dust baffle 601, a spray assembly 602 and a dust removal chain 603 which are arranged on the drive box 18, wherein the rubber dust baffle 601 is positioned at the front part of the drive box 18 and at the rear part of a slag outlet of the drive box, the dust diffusion speed and the dust diffusion area are reduced, the dust removal chain 603 is positioned at the rear part of the drive box 18, and the dust removal chain 603 can condense suspended dust and water vapor and reduce the height of the slag (reduce the dust generation amount caused by the rotation speed); the spraying assembly 602 is located between the rubber dust baffle 601 and the dust removing chain 603, and is connected with an external water source through a pipeline, so that the dust amount is reduced. Through the three dust blocking and removing processes, the dust discharge amount can be greatly reduced, and the dust dispersion speed and the dust discharge amount can be reduced.
As shown in fig. 4-6, in embodiment 2, the multistage dust removal system for the earth pressure/open dual-mode shield construction includes a special-shaped air duct assembly 7, and the front end of the special-shaped air duct assembly 7 corresponds to the main belt conveyor 5 and is configured to absorb dispersed dust generated during the carrying process of the main belt conveyor. The special-shaped air pipe assembly 7 extends backwards through the assembling machine 8 and is connected with a negative pressure soft air pipe assembly 9 arranged on the assembling machine 8, a dry type dust collector 12 and a dust removing fan 13 are connected to the rear portion of the special-shaped air pipe assembly 7, and the dry type dust collector 12 and the dust removing fan 13 are respectively arranged on the trailer 11. The trailer can adopt one or more, sets up as required, and dust exhausting fan 13 provides power for dust-collecting department tuber pipe dust collecting system after for, and the dispersed dust that the host computer belt feeder produced is absorbed dust remover department through special-shaped tuber pipe assembly, negative pressure air hose assembly under dust exhausting fan's effect, and then realizes the dispersion of dust.
Preferably, the special-shaped air duct assembly 7 includes an arc-shaped air duct 701, a rectangular air duct 703 and a circular air duct 705, the arc-shaped air duct 701 is connected with the rectangular air duct 703 through a first transition connector 702, the first transition connector 702 is an arc-shaped-rectangular connector, the rectangular air duct 703 is connected with the circular air duct 705 through a second transition connector 704, and the second transition connector 704 is a rectangular-circular connector. The arrangement of the different air pipes does not influence the normal work of other structures, ensures the dust removal area of the air pipes and realizes the installation of the air pipes in a limited space. The cambered air pipe 701 is positioned above the main machine belt conveyor 5, and the circular air pipe 705 penetrates through the equipment bridge 10. Be equipped with a plurality of dust absorption holes 706 on cambered surface tuber pipe 701's the lower surface, cambered surface tuber pipe 701 passes through the dust absorption hole and absorbs dust in the special-shaped tuber pipe, and cambered surface design increase dust absorption face of cambered surface tuber pipe 701 improves dust collection efficiency. The negative pressure soft air pipe assembly 9 adopts a telescopic negative pressure soft air pipe, a negative pressure soft air pipe support arranged on a main beam of the assembling machine 8 connects the telescopic negative pressure soft air pipe through a sliding drag order, and the negative pressure soft air pipe can be compressed to realize the retreat of a main belt conveyor.
Preferably, the tail of the main belt conveyor 5 is provided with at least one group of third dust removal spraying devices 15, and the third dust removal spraying devices 15 are located at the transferring and slag discharging positions of the main belt conveyor 5 and the rear matched belt conveyor 16. The third dust removal and spray device 15 is a water mist spray head assembly, and the water mist spray head assembly is connected with an external water source through a water pipe. A certain amount of dust is generated at the position where the main belt conveyor 5 and the rear matched belt conveyor 16 transfer the residue, and a plurality of dust removal spraying devices 15 and belt conveyor cleaning devices are arranged at the position, so that the dust is almost limited to fall to the rear matched belt conveyor and the bottom of the tunnel in the space.
The other structure is the same as embodiment 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a multistage dust pelletizing system of construction usefulness is shielded to soil pressure/open bimodulus which characterized in that: the device comprises a front dusting part spray dust removal system, a dust dispersion route dust removal system and a rear dusting part air duct dust removal system which are sequentially arranged in a shield machine (3); the front dusting part spray dedusting system comprises a first spray dedusting device (2) arranged on a soil bin partition plate (1); the dust dispersion route dust settling system comprises a dust removal and cooling device (4) and a second spray dust removal device (6), wherein the dust removal and cooling device (4) is arranged at the central hob (17), and the second spray dust removal device (6) is arranged at a slag outlet of the driving box (18); the dust collecting part of the air pipe dust collecting system at the rear dust rising part corresponds to the main machine belt conveyor (5).
2. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 1, characterized in that: the second spray dust removal device (6) comprises a rubber dust baffle plate (601), a spray assembly (602) and a dust removal chain (603), wherein the rubber dust baffle plate (601), the spray assembly (602) and the dust removal chain (603) are arranged on the driving box (18), the rubber dust baffle plate (601) is positioned in the front of the driving box (18), the dust removal chain (603) is positioned in the rear of the driving box (18), and the spray assembly (602) is positioned between the rubber dust baffle plate (601) and the dust removal chain (603).
3. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 1 or 2, characterized in that: the first spray dust removal device (2) is a water mist spray head assembly, the water mist spray head assembly is connected with an external water source through a water pipe, and at least one group of water mist spray head assemblies are arranged on the soil bin partition plate (1).
4. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 1 or 2, characterized in that: the rear dusting place air pipe dust collection system comprises a special-shaped air pipe assembly (7), the front end of the special-shaped air pipe assembly (7) corresponds to a main machine belt conveyor (5), the special-shaped air pipe assembly (7) extends backwards to penetrate through an assembling machine (8) and is connected with a negative pressure soft air pipe assembly (9) arranged on the assembling machine (8), the rear part of the special-shaped air pipe assembly (7) is connected with a dry dust collector (12) and a dust removal fan (13), and the dry dust collector (12) and the dust removal fan (13) are respectively arranged on a trailer (11).
5. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 4, characterized in that: the special-shaped air pipe assembly (7) comprises an arc-shaped air pipe (701), a rectangular air pipe (703) and a circular air pipe (705), the arc-shaped air pipe (701) is connected with the rectangular air pipe (703) through a first transition connector (702), the rectangular air pipe (703) is connected with the circular air pipe (705) through a second transition connector (704), the arc-shaped air pipe (701) is located above the main machine belt conveyor (5), and the circular air pipe (705) is arranged on the equipment bridge (10) in a penetrating mode.
6. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 5, characterized in that: the lower surface of the cambered air pipe (701) is provided with a plurality of dust suction holes (706), and the negative pressure soft air pipe assembly (9) adopts a telescopic negative pressure soft air pipe.
7. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 5 or 6, wherein: the tail of the main belt conveyor (5) is provided with at least one group of third dust removal spraying devices (15), and the third dust removal spraying devices (15) are located at the transferring and slag discharging positions of the main belt conveyor (5) and the rear matched belt conveyor (16).
8. The multistage dust removal system for the earth pressure/open double-mold shield construction according to claim 7, characterized in that: and the third dust removal and spray device (15) is a water mist spray head component, and the water mist spray head component is connected with an external water source through a water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992950.5U CN210068231U (en) | 2019-06-28 | 2019-06-28 | Multistage dust pelletizing system of open bimodulus shield construction usefulness of soil pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920992950.5U CN210068231U (en) | 2019-06-28 | 2019-06-28 | Multistage dust pelletizing system of open bimodulus shield construction usefulness of soil pressure |
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| CN210068231U true CN210068231U (en) | 2020-02-14 |
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| CN201920992950.5U Active CN210068231U (en) | 2019-06-28 | 2019-06-28 | Multistage dust pelletizing system of open bimodulus shield construction usefulness of soil pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130974A (en) * | 2019-06-28 | 2019-08-16 | 中铁工程装备集团有限公司 | Soil pressure/unlimited bimodulus shield-tunneling construction Multilevel Dust Control System |
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2019
- 2019-06-28 CN CN201920992950.5U patent/CN210068231U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130974A (en) * | 2019-06-28 | 2019-08-16 | 中铁工程装备集团有限公司 | Soil pressure/unlimited bimodulus shield-tunneling construction Multilevel Dust Control System |
| CN110130974B (en) * | 2019-06-28 | 2024-03-08 | 中铁工程装备集团有限公司 | Multistage dust removal system for earth pressure/open double-mode shield construction |
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