CN215890068U - Ventilating and dust-settling system for closed-room operation space of cantilever excavator - Google Patents
Ventilating and dust-settling system for closed-room operation space of cantilever excavator Download PDFInfo
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- CN215890068U CN215890068U CN202121228151.4U CN202121228151U CN215890068U CN 215890068 U CN215890068 U CN 215890068U CN 202121228151 U CN202121228151 U CN 202121228151U CN 215890068 U CN215890068 U CN 215890068U
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Abstract
The utility model belongs to the technical field of dust prevention, dust adhesion, dust fall or dust removal in mines or tunnels, and discloses a ventilation and dust fall system for a closed room operation space of a cantilever excavator, which comprises an air supply part and an air draft part, wherein the air supply part comprises an air feeder and an air supply belt communicated with the air feeder, and the free end of the air supply belt is positioned at a position which is 5m away from a tunnel face in a straight line; the air exhaust part comprises an exhaust fan and an air exhaust belt communicated with the exhaust fan, and the exhaust fan is arranged at a position which is 20m away from the tunnel face in a linear distance. The utility model solves the problems that the cantilever excavator generates more dust in a closed space in the excavating process, so that an operator cannot clearly see the face, and great over-excavation phenomenon occurs, and great economic loss is caused.
Description
Technical Field
The utility model belongs to the technical field of dust prevention, dust adhesion, dust fall or dust removal in mines or tunnels, and particularly relates to a ventilation and dust fall system for a closed room operation space of a cantilever excavator.
Background
The cantilever tunneling machine is a combined machine set capable of realizing cutting, loading, transporting and self-walking. With the rapid development of machinery and intellectualization, the cantilever tunneling machine is widely applied to the fields of coal mine excavation, tunnel excavation, excavation of underground rails of various vehicles and the like. Therefore, the working environment of the cantilever excavator is usually a closed space, the cantilever excavator can crush sandy mudstone and generate a large amount of dust in the using process, the spraying device of the cantilever excavator also supports the cutting head to cool, and the dust falling effect cannot be brought, so that the situation that the working face (also called sub-face, namely the working face which is continuously pushed forward in the excavation process) cannot be clearly seen in the excavating process of the cantilever excavator, and a great overbreak phenomenon occurs, and great economic loss can be caused. And the condition of overexcavation also appears, still easily makes the tunnel suffer destruction, and then greatly reduced security.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ventilation and dust-fall system for a closed room operation space of a cantilever excavator, which aims to solve the problems that a large amount of dust is generated in a closed space during the excavation process of the cantilever excavator, so that an operator cannot clearly see a tunnel face, and a great over-excavation phenomenon occurs, and a great economic loss is caused.
In order to achieve the purpose, the utility model provides the following technical scheme that the ventilation and dust fall system for the closed chamber operation space of the cantilever excavator comprises an air supply part and an air exhaust part, wherein the air supply part comprises an air feeder and an air supply belt communicated with the air feeder, and the free end of the air supply belt is located at a position which is 5m away from the tunnel face in a straight line; the air exhaust part comprises an exhaust fan and an air exhaust belt communicated with the exhaust fan, and the exhaust fan is arranged at a position which is 20m away from the tunnel face in a linear distance.
The technical principle of the technical scheme is as follows:
the air supply part supplies air to the closed chamber operation space to blow up dust, the amount of dust attached to the cantilever heading machine is reduced, air can be drawn out through the air drawing part, the dust can be drawn out of the closed chamber operation space along with the air, the dust in the closed chamber operation space is reduced, and the dust falling effect is achieved.
The beneficial effects of the technical scheme are as follows:
1. in the technical scheme, the air supply part supplies air to the closed chamber operation space, so that dust adhered to the side wall of the operation space and the cantilever excavator can be blown up, and dust fall is facilitated;
2. in the technical scheme, the air in the operation space of the closed chamber is pumped out through the air pumping part, and dust can be pumped out along with the air, so that the dust content in the operation space is reduced, the visibility is improved, the operation of operators is facilitated, the excavating precision is improved, the over-excavation phenomenon is reduced, and the cost is reduced;
3. the air supply position of the air supply belt and the air exhaust position of the exhaust fan are arranged, so that dust removal and dust fall effects are better, and the influence on the cantilever excavator is reduced.
In conclusion, according to the technical scheme, the gas circulation is realized through air supply and air exhaust, in the gas circulation process, dust in the operation space of the sealed chamber is extracted, the dust falling of the operation space of the sealed chamber is completed, the visibility of the operation space of the sealed chamber is further improved, an operator can conveniently operate the cantilever excavator, the excavator can be excavated according to expected setting, and the over-excavation condition is reduced.
Furthermore, one end of the air exhaust belt far away from the exhaust fan is communicated with a dust remover.
Has the advantages that: the dust remover can treat the gas extracted from the operation space of the closed chamber, and reduces the pollution of the direct discharge of the gas to the external environment.
Further, the dust remover comprises a dust removing cylinder communicated with the air draft belt, and the top of the dust removing cylinder is provided with an atomizing nozzle.
Has the advantages that: the exhaust fan guides the gas mixed with the dust into the dust removal cylinder, and the atomizing nozzle sprays water to settle the dust in the gas, so that the gas is treated.
Furthermore, a partition plate is arranged in the middle of the dust removing cylinder, one side of the dust removing cylinder, which is positioned on the partition plate, is a dust guide cavity, the other side of the dust removing cylinder is a dust removing cavity, the bottom of the dust guide cavity is communicated with an air draft belt, and a sealing plate for sealing the top of the dust guide cavity is arranged at the top of the dust removing cylinder; the atomizing spray head is positioned in the dust removal cavity, the partition plate is provided with an air guide hole for communicating the dust guide cavity with the dust removal cavity, and the air guide hole is positioned below the atomizing spray head.
Has the advantages that: gas with dust can get into the dust guide cavity earlier, and rethread gas guide hole gets into the dust removal intracavity, and the water that utilizes atomizer to spray out subsides the dust in the gas again, accomplishes the dust removal. And set up the baffle, can avoid spraying the water that comes out in the atomizer to get into leads the dirt intracavity, and then can avoid water to get into the convulsions machine, reduce the air exhauster because of the impaired probability of intaking.
Furthermore, a conical flow guide block is arranged above the air guide hole on the partition plate.
Has the advantages that: when the atomizing nozzle sprays water, part of water is adhered to the partition plate, so that part of water enters the dust guide cavity through the air guide hole, the water guide block is arranged to block the water flowing downwards along the partition plate, and the water can be prevented from entering the air guide hole. The diversion block is set to be conical, so that water can be diverted, and the water flows down from two sides of the air guide hole.
Furthermore, the bottom of the dust removing cylinder is provided with a baffle plate, a dust outlet is arranged between the baffle plate and the bottom of the dust removing cylinder, and a sealing plug is arranged in the dust outlet.
Has the advantages that: partial dust also can take place to subside at the in-process that flows, through the setting of baffle, can make the dust of whereabouts under the action of gravity stay lead the dirt intracavity, and the dust can not get into in the convulsions machine, consequently reduces the air exhauster and is influenced by the dust and impaired probability. And the dust blocks through the baffle and can pile up gradually, can lead out accumulational dust through the dust outlet.
Further, a dust removal section of thick bamboo still includes the communicating pipe with the bottom intercommunication of leading the dirt chamber, communicating pipe and convulsions wind area intercommunication, and the communicating pipe sets up along the tilt up towards dust chamber direction, and the baffle setting is in the bottom of communicating pipe.
Has the advantages that: utilize communicating pipe to communicating air exhauster and dust guide chamber intercommunication, the flow path that can make the gas of taking out get into before the dust guide chamber is longer relatively, can give the time that dust in the gas subsides under the action of gravity, and then can reduce the dust content in the gas that gets into the dust removal chamber, consequently subsides the volume of used water can reduce, can the water economy resource to gas. And will communicating pipe slope setting, can make the dust that subsides under the action of gravity slide along communicating pipe to pile up in one department, and then can conveniently take out the dust from the dust outlet.
Drawings
Fig. 1 is a schematic structural diagram of a ventilation and dust-settling system of a closed room operation space of a cantilever excavator, which is disclosed by the utility model;
fig. 2 is a longitudinal sectional view of the precipitator of fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a closed room operation space 1, a tunnel face 2, a blower 3, an air supply belt 4, an exhaust fan 5, an air supply belt 6, a dust remover 7, a dust removing barrel 8, a partition plate 9, an air guide hole 10, a flow guide block 11, a sealing plate 12, an atomizing nozzle 13, a communicating pipe 14, a baffle plate 15, a dust outlet 16 and a sealing plug 17.
Example (b):
a ventilation and dust fall system of a cantilever heading machine secret room working space 1 is basically shown as figure 1 and comprises an air supply part and an air exhaust part, wherein the air supply part comprises an air feeder 3 and an air supply belt 4 communicated with an air outlet end of the air feeder 3, and a free end (namely, one end far away from the air feeder 3) of the air supply belt 4 is positioned at a position 2 linear distance 5m away from a tunnel face; in this embodiment, the blower 3 is a 75kw blower. The air exhaust part comprises an air exhaust fan 5 and an air exhaust belt 6, wherein the air exhaust fan 5 is arranged at a position which is 20m away from the tunnel face 2 in a straight line, the air exhaust belt 6 is communicated with the air outlet end of the air exhaust fan 5, and the air exhaust belt 6 is positioned outside the secret chamber operation space 1; in this embodiment, 55kw blower is used as the blower 5.
The left end of convulsions wind area 6 communicates with dust remover 7, and as shown in the combination of fig. 2, dust remover 7 includes dust removal section of thick bamboo 8, is equipped with vertical baffle 9 in the dust removal section of thick bamboo 8, and vertical baffle 9 separates dust removal section of thick bamboo 8 for the left chamber of leading the dirt and the dust removal chamber on right side, and the left top of dust removal section of thick bamboo 8 is equipped with the closing plate 12 that will lead the sealed top in dirt chamber.
The middle part of the clapboard 9 is provided with an air guide hole 10 which communicates the dust guide cavity and the dust removal cavity, and the air guide hole 10 is obliquely arranged from left to right upwards; a flow guide block 11 is arranged on the right side wall of the partition board 9 above the air guide holes 10, the flow guide block 11 is conical, and the length of the flow guide block 11 is greater than that of the air guide holes 10. The top in dust removal chamber is equipped with atomizer 13, through intercommunication inlet tube on atomizer 13, can realize leading into water in atomizer 13 to spout again after atomizing water through atomizer 13.
Still include the communicating pipe 14 with the bottom intercommunication of dust guide chamber, communicating pipe 14 inclines upward from a left side to the right side and sets up, and the left end of communicating pipe 14 communicates with convulsions wind area 6. A baffle 15 is arranged at the bottom of the left part of the communicating pipe 14, a dust outlet 16 is arranged at the bottom of the communicating pipe 14 and positioned on the right side of the baffle 15, and a sealing plug 17 is arranged in the dust outlet 16.
The specific implementation process is as follows:
starting the blower 3 and the exhaust fan 5, and feeding gas into the booth working space 1 through the blower 3, wherein the gas blows dust adhered to the cantilever excavator and dust adhered to the inner wall of the booth working space 1, so that the dust is scattered in the air. And then the exhaust fan 5 is started, and the dust in the operation space 1 of the closed chamber is extracted along with the gas through the exhaust fan 5, so that the dust fall of the operation space 1 of the closed chamber is completed.
The gas that takes out passes through convulsions wind area 6 and communicating pipe 14 and gets into and leads the dirt chamber, and gas gets into and leads behind the dirt chamber, can pile up gradually, and rethread air guide hole 10 gets into the dust removal intracavity. When the gas is accumulated in the dust guide chamber, part of dust of slag in the gas is settled under the action of gravity and is accumulated at the bottom of the communicating pipe 14. The dust accumulated at the bottom of the communicating pipe 14 slides along the inclined communicating pipe 14 and is blocked by the baffle 15, and after a certain amount of dust is accumulated, the dust outlet 16 is opened to lead out the dust.
After gas got into the dust removal chamber, upwards circulate to contact with atomizer 13 spun water, subside through the dust that water was mingled with in to the gas, and the gas after the clearance lasts upward flow and discharges, can reduce the dust content in the combustion gas, reduces the influence to the environment. In order to avoid the influence of water after dust settling on the environment, a collecting tank can be arranged at the bottom of the dust removing cylinder 8.
The water sprayed from the atomizer 13 drops on the side walls of the partition 9 and the dust-removing chamber and flows downward. When water drops on the partition board 9 flow to the position of the flow guide block 11, the water drops flow to two sides along the flow guide block 11, so that the water drops can be prevented from entering the air guide hole 10, gas is prevented from entering the communicating pipe 14, and dust is prevented from adhering to the inner wall of the communicating pipe 14 and cannot be easily led out.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the utility model, and these changes and modifications should not be construed as affecting the performance of the utility model and its practical application.
Claims (4)
1. The utility model provides a cantilever entry driving machine secret room operation space ventilation dust fall system which characterized in that: the air supply part comprises an air feeder and an air feeding belt communicated with the air feeder, and the free end of the air feeding belt is positioned at a position which is 5m away from the tunnel face in a straight line; the air exhaust part comprises an exhaust fan and an air exhaust belt communicated with the exhaust fan, and the exhaust fan is arranged at a position which is 20m away from the tunnel face in a straight line; one end of the exhaust air belt, which is far away from the exhaust fan, is communicated with a dust remover, the dust remover comprises a dust removing cylinder communicated with the exhaust air belt, the top of the dust removing cylinder is provided with an atomizing nozzle, the middle part of the dust removing cylinder is provided with a partition plate, one side of the dust removing cylinder, which is positioned on the partition plate, is a dust guide cavity, the other side of the dust removing cylinder is a dust removing cavity, the bottom of the dust guide cavity is communicated with the exhaust air belt, and the top of the dust removing cylinder is provided with a sealing plate for sealing the top of the dust guide cavity; the atomizing spray head is positioned in the dust removal cavity, the partition plate is provided with an air guide hole for communicating the dust guide cavity with the dust removal cavity, and the air guide hole is positioned below the atomizing spray head.
2. The ventilating dust-settling system for the cabin working space of the cantilever excavator according to claim 1, wherein: a conical flow guide block is arranged above the air guide hole on the partition board.
3. The ventilating dust-settling system for the cabin working space of the cantilever excavator according to claim 2, wherein: the bottom of the dust removing cylinder is provided with a baffle plate, a dust outlet is arranged between the baffle plate and the bottom of the dust removing cylinder, and a sealing plug is arranged in the dust outlet.
4. The ventilating dust-settling system for the cabin working space of the cantilever excavator according to claim 3, wherein: still include the communicating pipe that will lead dirt chamber and convulsions wind area intercommunication, communicating pipe sets up along orientation to the dust chamber orientation tilt up, and the baffle setting is in the bottom of communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121228151.4U CN215890068U (en) | 2021-06-02 | 2021-06-02 | Ventilating and dust-settling system for closed-room operation space of cantilever excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121228151.4U CN215890068U (en) | 2021-06-02 | 2021-06-02 | Ventilating and dust-settling system for closed-room operation space of cantilever excavator |
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| Publication Number | Publication Date |
|---|---|
| CN215890068U true CN215890068U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121228151.4U Active CN215890068U (en) | 2021-06-02 | 2021-06-02 | Ventilating and dust-settling system for closed-room operation space of cantilever excavator |
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| Country | Link |
|---|---|
| CN (1) | CN215890068U (en) |
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2021
- 2021-06-02 CN CN202121228151.4U patent/CN215890068U/en active Active
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