CN212686680U - Dust collector, screw conveyer and entry driving machine suitable for same - Google Patents
Dust collector, screw conveyer and entry driving machine suitable for same Download PDFInfo
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- CN212686680U CN212686680U CN202021483632.5U CN202021483632U CN212686680U CN 212686680 U CN212686680 U CN 212686680U CN 202021483632 U CN202021483632 U CN 202021483632U CN 212686680 U CN212686680 U CN 212686680U
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Abstract
The utility model discloses a screw conveyer and entry driving machine that is suitable for thereof has solved the problem that screw conveyer dust collection efficiency is low among the prior art. The utility model comprises a separating shell ring and a dustproof water curtain mechanism, wherein the separating shell ring is hermetically connected on the material barrel and communicated with the material barrel, and the dustproof water curtain mechanism is arranged inside the material barrel and is positioned between the separating shell ring and a tail slag outlet; and a vacuum negative pressure system is connected to the separation shell ring, and a filtering system is arranged between the separation shell ring and the vacuum negative pressure system. The utility model discloses can eliminate the inside dust of screw conveyer before reacing the spiral shell machine slag notch when full section rock stratum tunnelling, prevent dust pollution tunnel, influence construction environment, realize the separation of dust and dregs. The utility model discloses dust collector's filtration system adopts baffle method, water curtain method and the tertiary dust fall of filtration, improves dust collection efficiency.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially indicates a dust collector, screw conveyer and entry driving machine that is suitable for thereof.
Background
With the high-speed development of tunnel equipment technology, the construction of underground tunnels is rapidly developed, the influence of the use of tunnel boring machines in cities on road traffic is small, tunnel excavation is widely applied by adopting the tunnel boring machines, and further the screw conveyors are widely applied. When the open type tunnel boring machine adopts the central screw conveyor mode to discharge slag, if the face is full-section hard rock, the screw conveyor can realize closed slag discharge, but because the cutter head always crushes rock strata, a large amount of dust is generated, although dust-falling measures are taken by a soil cabin of the tunnel boring machine, the dust-falling effect is still not ideal, and the slag outlet of the screw conveyor still flies out along with the dust, so that the internal construction environment of a main machine is influenced, a tunnel is polluted, and constructors are influenced.
And the existing screw conveyer with dust removal function: a screw conveyer dust collector like application number 201921118242.5, the structure is complicated, and is bulky, is not suitable for the use in tunnel construction. Therefore, there is a need for a screw conveyor with high dust removal efficiency suitable for tunnel construction.
SUMMERY OF THE UTILITY MODEL
To not enough among the above-mentioned background art, the utility model provides a dust collector, screw conveyer and entry driving machine that is suitable for thereof has solved the problem that screw conveyer dust collection efficiency is low among the prior art.
The technical scheme of the utility model is realized like this: a dust removal device comprises a separation cylinder section and a dustproof water curtain mechanism, wherein the separation cylinder section is connected to a material barrel in a sealing mode and communicated with the material barrel, and the dustproof water curtain mechanism is arranged inside the material barrel and located between the separation cylinder section and a tail slag outlet; and a vacuum negative pressure system is connected to the separation shell ring, and a filtering system is arranged between the separation shell ring and the vacuum negative pressure system.
The separating cylinder section comprises an outer cylinder body, the outer cylinder body is fixedly sealed on the outer wall of the material cylinder, and separating through holes are formed in the outer wall of the material cylinder corresponding to the outer cylinder body; the separation cylinder section is communicated with the filtering system through an exhaust pipeline.
A switch valve is arranged on the exhaust pipeline; and a flushing joint is arranged on the separation cylinder section and is detachably connected with a water supply system.
The filtering system comprises a filtering box body, and a partition plate assembly, a filtering screen assembly and a dehumidifying assembly are sequentially arranged in the filtering box body along the air inlet direction.
The filter screen subassembly includes the one-level filter screen, second grade filter screen and the tertiary filter screen that set gradually along the direction of admitting air, and the filter particle size of one-level filter screen, second grade filter screen and tertiary filter screen reduces step by step.
The partition plate assembly comprises partition plates which are arranged in a staggered mode, and a dustproof water curtain mechanism is arranged between every two adjacent partition plates; the dehumidifying component is a moisture absorbing plate.
The outlet end of the filtering box body is provided with an output pipe, the output pipe is provided with a valve, and the output pipe is connected with a vacuum negative pressure system.
The dustproof water curtain mechanism comprises a fixed seat, a connecting seat is connected to the fixed seat in a threaded manner, a water curtain nozzle is arranged on the connecting seat, and the water curtain nozzle is connected with a water supply system.
The fixing seat is fixed on the material barrel and/or a filtering box body of the filtering system along the circumferential direction.
A screw conveyer comprises the dust removal device. And the separation cylinder section of the dust removal device is fixed on the cylinder wall of the material cylinder of the spiral conveyor.
A heading machine comprises the spiral conveyor. And the air outlet end of the output pipe of the filtering system of the dust removal device is positioned in the soil bin or the tunnel.
The utility model discloses can eliminate the inside dust of screw conveyer before reacing the spiral shell machine slag notch when full section rock stratum tunnelling, prevent dust pollution tunnel, influence construction environment, realize the separation of dust and dregs. The utility model discloses dust collector's filtration system adopts baffle method, water curtain method and the tertiary dust fall of filtration, improves dust collection efficiency. The dry and clean gas can be conveyed into the soil bin in the working process of the heading machine, dust removal in a circulating mode in a closed space can be realized, environment-friendly slag discharge of the screw conveyor in a full-face rock stratum is realized, and the civilized construction of a tunnel is realized. The utility model discloses when dust removal screw conveyer and dust removal method's application realized that open tunnel boring machine adopted central screw conveyer mode tunnelling, effectively reduced the inside dust in tunnel, guaranteed civilized construction, improved staff construction environment, had higher practicality and 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 the schematic view of the overall connection state of the dust removing device of the present invention.
Fig. 2 is a schematic view of the separating shell ring of the present invention.
Fig. 3 is a view from a-a in fig. 2.
Fig. 4 is an internal structure schematic of the filtering system of the present invention.
Fig. 5 is a schematic diagram of the arrangement of the dustproof water curtain mechanism on the material barrel.
Fig. 6 is the structural schematic diagram of the heading machine 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, in embodiment 1, a dust removing device includes a separation cylinder section 3 and a dustproof water curtain mechanism 4, the separation cylinder section 3 is hermetically connected to a material cylinder 9 and is communicated with the material cylinder, dust or dirt generated in the material cylinder during material conveying can enter the separation cylinder section, and the separation cylinder section is used for separating material (or residue soil) from the dust. The dustproof water curtain mechanism 4 is arranged in the material barrel 9 and is positioned between the separation barrel section 3 and the tail slag outlet 5; the residual dust which is not completely separated by the separation cylinder section is removed, and the amount of dust discharged from a slag outlet is reduced. The dust removing device is characterized in that a vacuum negative pressure system 7 is connected onto the separating cylinder section 3, a filtering system 6 is arranged between the separating cylinder section 3 and the vacuum negative pressure system 7, negative pressure is formed in the separating cylinder section under the action of the vacuum negative pressure system, dust in the material cylinder is sucked into the separating cylinder section, and then the dust enters the filtering system through a pipeline, so that dust removal of the material cylinder is achieved.
Further, as shown in fig. 2 and 3, the separation cylinder section 3 includes an outer cylinder 3-1, the outer cylinder 3-1 is fixed and sealed on the outer wall of the material cylinder 9, the outer cylinder 3-1 and the material cylinder can form a concentric circular ring body, and the outer cylinder can also be a local convex cylinder body of the material cylinder. The outer wall of the material barrel 9 corresponding to the outer barrel 3-1 is provided with a separation through hole 3-2, dust in the material barrel can enter the outer barrel through the separation through hole, the outer barrel and the inner barrel wall of the separation barrel section are provided with dust and residue soil separation holes, and the positions and sizes of the separation holes are designed according to requirements, so that the dust can smoothly enter the outer barrel. In the working process, the filling rate in the material barrel is preferably not more than 50%, the slag soil is ensured not to contact with the separation barrel section 3, and dust can well enter the outer barrel body under the action of the vacuum negative pressure system. The separating cylinder section 3 is communicated with a filtering system 6 through an exhaust pipeline 3-3, and dust in the outer cylinder body enters the filtering system through the exhaust pipeline under the action of a vacuum negative pressure system to remove dust from gas. Preferably, a switch valve 3-4 is arranged on the exhaust pipeline 3-3; the switch valves 3-4 can adopt electromagnetic ball valves, and under a better working condition, if a filtering system is not needed, the dust removal device can be separated from the material barrel by closing the switch valves, and dust is directly removed through a dustproof water curtain mechanism near the slag outlet. And the separation cylinder section 3 is provided with a flushing joint 3-5, and the flushing joint 3-5 is detachably connected with a water supply system. When the flushing joints 3-5 are communicated with a water supply system, high-pressure water is sprayed into the separation cylinder section for cleaning internal dregs or dust, so that blockage is prevented.
Further, as shown in fig. 4, the filtering system 6 includes a filtering box 6-1, and a partition plate assembly, a filtering net assembly and a dehumidifying assembly are sequentially arranged in the filtering box 6-1 along an air inlet direction. The baffle plate assembly increases the flow path of the dust-containing gas, and the dust falling effect is achieved. The filter screen subassembly filters dust step by step, realizes hierarchical dust fall. The dehumidification component is used for dehumidifying the filtered gas and absorbing the redundant moisture. An outlet pipe 6-7 is arranged at the outlet end of the filtering box body 6-1, a valve 6-8 is arranged on the outlet pipe 6-7, the outlet pipe 6-7 is connected with a vacuum negative pressure system 7, and a blower can be used for replacing the vacuum negative pressure system under the working condition of less dust so as to directly discharge filtered air to the outside of the filtering box body. The filter box body considers the volume, and flange cover plates can be arranged on two sides, so that the filter screen and the dust and the sewage in the primary filter system can be conveniently cleaned.
Preferably, the filter screen assembly comprises a first-stage filter screen 6-3, a second-stage filter screen 6-4 and a third-stage filter screen 6-5 which are sequentially arranged along the air inlet direction, the filter particle sizes of the first-stage filter screen 6-3, the second-stage filter screen 6-4 and the third-stage filter screen 6-5 are gradually reduced, and the dust-containing gas is filtered step by step to realize graded dust reduction. Preferably, the baffle assembly comprises baffle plates 6-2 which are arranged in a staggered mode, namely the baffle plates are respectively arranged at the upper part and the lower part of the filtering box body, the baffle plates at the upper part and the baffle plates at the lower part are arranged in a crossed mode, and a dustproof water curtain mechanism 4 is preferably arranged between every two adjacent baffle plates at the upper part and used for water curtain dust fall. The dehumidifying component is a moisture absorbing plate 6-6, and one or more groups can be arranged to remove moisture in the gas and ensure the dryness of the gas.
Further, as shown in fig. 5, the dustproof water curtain mechanism 4 comprises a fixed seat 4-1, and a connecting seat 4-2 is connected to the fixed seat 4-1 in a threaded manner, so that the connection is convenient to disassemble, assemble and replace. The connecting seat 4-2 is provided with a water curtain nozzle 4-3, the water curtain nozzle 4-3 is connected with a water supply system, and the water supply system forms a water curtain in the material barrel or the filter box body through the water curtain nozzle to perform water curtain dust fall. The fixed seat 4-1 is fixed on the material barrel 9 along the circumferential direction, and a plurality of groups of dustproof water curtains are circumferentially arranged on the material barrel to form a closed water curtain to remove residual dust which is not completely separated by the separation barrel section. The fixed seat 4-1 can also be arranged on a filtering box body 6-1 of the filtering system 6 in a circumferential direction or in a row, so that water curtain dust fall is carried out on gas in the filtering box body, and the dust fall efficiency is improved.
As shown in fig. 6, embodiment 2, a screw conveyor includes the dust removing device according to embodiment 1. The separating shell ring 3 of the dust removing device is fixed on the wall of a material barrel 9 of the spiral conveyor. When this screw conveyer carries out material transport, the inside dust or the dust of inside output get into dust collector, effectively detach the inside dust or the dust of screw conveyer. The dust removal method can select a water curtain dust removal method and a filter screen dust removal method in the filter system according to needs, and can also filter dust in other modes.
As shown in fig. 6, embodiment 3, a heading machine includes the screw conveyor described in embodiment 2. In the construction process, the cylinder section can be directly separated and closed, and the two sides of the slag outlet of the screw conveyor can also be provided with the dust hood which is directly connected to the filtering system to achieve the purpose of dust removal. In addition, the air outlet end of the output pipe 6-7 of the filtering system 6 of the dust removing device is positioned in the soil bin 1 or the tunnel 8. If the discharged air is directly connected to the soil bin, dust removal in a circulation mode in a closed space can be achieved, the structure is compact, and no influence is caused on tunnel construction. Or directly discharged into the tunnel.
The working process is as follows: the dust that tunnel boring machine blade disc hobbing cutter broke rock process produced passes through inside the tunnel boring machine soil bin transmits screw conveyer, the dust is during screw conveyer's section of thick bamboo, form the negative pressure through the vacuum pump among the vacuum negative pressure system, pass through the separation shell ring separation with the inside dust of screw conveyer shell ring, filter system filters and dehumidifies, discharge clean air to tunnel boring machine soil bin or tunnel through vacuum negative pressure system, accomplish screw conveyer's dust removal, reduce the inside dust in tunnel, guarantee civilized construction, improve staff construction environment.
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 (13)
1. A dust collector, its characterized in that: the device comprises a separation cylinder section (3) and a dustproof water curtain mechanism (4), wherein the separation cylinder section (3) is connected to a material barrel (9) in a sealing manner and is communicated with the material barrel, and the dustproof water curtain mechanism (4) is arranged in the material barrel (9) and is positioned between the separation cylinder section (3) and a tail slag outlet (5); the separation shell ring (3) is connected with a vacuum negative pressure system (7), and a filtering system (6) is arranged between the separation shell ring (3) and the vacuum negative pressure system (7).
2. The dust removing device according to claim 1, wherein: the separating cylinder section (3) comprises an outer cylinder body (3-1), the outer cylinder body (3-1) is fixedly sealed on the outer wall of the material cylinder (9), and a separating through hole (3-2) is formed in the outer wall of the material cylinder (9) corresponding to the outer cylinder body (3-1); the separation cylinder section (3) is communicated with the filtering system (6) through an exhaust pipeline (3-3).
3. The dust removing device according to claim 2, wherein: a switch valve (3-4) is arranged on the exhaust pipeline (3-3); and a flushing joint (3-5) is arranged on the separation cylindrical shell section (3), and the flushing joint (3-5) is detachably connected with a water supply system.
4. A dust removing device according to any one of claims 1 to 3, wherein: the filtering system (6) comprises a filtering box body (6-1), and a partition plate assembly, a filtering screen assembly and a dehumidifying assembly are sequentially arranged in the filtering box body (6-1) along the air inlet direction.
5. The dust removing device according to claim 4, wherein: the filter screen assembly comprises a first-stage filter screen (6-3), a second-stage filter screen (6-4) and a third-stage filter screen (6-5) which are sequentially arranged along the air inlet direction, and the filter particle sizes of the first-stage filter screen (6-3), the second-stage filter screen (6-4) and the third-stage filter screen (6-5) are gradually reduced.
6. The dust removing device according to claim 5, wherein: the partition plate assembly comprises partition plates (6-2) which are arranged in a staggered mode, and a dustproof water curtain mechanism (4) is arranged between every two adjacent partition plates; the dehumidifying component is a moisture absorbing plate (6-6).
7. The dust removing device according to claim 6, wherein: an output pipe (6-7) is arranged at the outlet end of the filtering box body (6-1), a valve (6-8) is arranged on the output pipe (6-7), and the output pipe (6-7) is connected with a vacuum negative pressure system (7).
8. A dust removing device according to any one of claims 1 to 3 and 5 to 7, wherein: the dustproof water curtain mechanism (4) comprises a fixed seat (4-1), a connecting seat (4-2) is connected to the fixed seat (4-1) in a threaded mode, a water curtain spray head (4-3) is arranged on the connecting seat (4-2), and the water curtain spray head (4-3) is connected with a water supply system.
9. The dust removing device according to claim 8, wherein: the fixed seat (4-1) is fixed on the material barrel (9) and/or a filtering box body (6-1) of the filtering system (6) along the circumferential direction.
10. A screw conveyor characterized by: the dust removing device comprises the dust removing device as claimed in any one of claims 1 to 3, 5 to 7 and 8.
11. The screw conveyor according to claim 10, wherein: the separating cylinder section (3) of the dust removing device is fixed on the wall of a material cylinder (9) of the spiral conveyor.
12. A heading machine is characterized in that: comprising a screw conveyor according to claim 11.
13. The heading machine of claim 12, wherein: the air outlet end of an output pipe (6-7) of a filtering system (6) of the dust removal device is positioned in the soil bin or the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021483632.5U CN212686680U (en) | 2020-07-24 | 2020-07-24 | Dust collector, screw conveyer and entry driving machine suitable for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021483632.5U CN212686680U (en) | 2020-07-24 | 2020-07-24 | Dust collector, screw conveyer and entry driving machine suitable for same |
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| CN212686680U true CN212686680U (en) | 2021-03-12 |
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| CN202021483632.5U Active CN212686680U (en) | 2020-07-24 | 2020-07-24 | Dust collector, screw conveyer and entry driving machine suitable for same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952812A (en) * | 2021-09-08 | 2022-01-21 | 洪权 | Tunnel water curtain dust collector |
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2020
- 2020-07-24 CN CN202021483632.5U patent/CN212686680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952812A (en) * | 2021-09-08 | 2022-01-21 | 洪权 | Tunnel water curtain dust collector |
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