CN218439436U - Heading machine has water spray dust suppression device of anti-blocking and self-adaptation flow - Google Patents
Heading machine has water spray dust suppression device of anti-blocking and self-adaptation flow Download PDFInfo
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- CN218439436U CN218439436U CN202222307054.5U CN202222307054U CN218439436U CN 218439436 U CN218439436 U CN 218439436U CN 202222307054 U CN202222307054 U CN 202222307054U CN 218439436 U CN218439436 U CN 218439436U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The utility model discloses a heading machine with a water spraying dust suppression device which can prevent blocking and has self-adaptive flow, comprising a nozzle head, wherein a communicated through cavity A and a communicated through cavity B are axially arranged in the nozzle head, the through cavity A is arranged in a conical shape, the large end surface of the through cavity A is communicated with the through cavity B, and the small end surface of the through cavity A forms a nozzle opening on the nozzle head; the nozzle comprises a nozzle body, wherein an inner cavity is arranged in the nozzle body, the tail part of a nozzle head is connected in the inner cavity in a threaded manner, a valve core is connected in the inner cavity in a sliding manner, one end of the valve core is provided with a conical surface attached to a through cavity A, a compression spring is arranged between the other end of the valve core and the inner wall of the bottom surface of the nozzle body, the valve core divides the inner cavity into a first inner cavity and a second inner cavity, and the compression spring is arranged in the second inner cavity; the inner wall of the nozzle body is provided with a water inlet channel communicated with the first inner cavity and the bottom surface of the nozzle body, and a gas outlet channel communicated with the second inner cavity and the outer wall of the nozzle body. The utility model overcomes weak point among the prior art, high-efficient dust suppression device.
Description
Technical Field
The utility model belongs to mining machinery especially relates to a heading machine has the water spray dust suppression device of preventing stifled and self-adaptation flow.
Background
Coal dust under coal mines is a main factor causing occupational diseases, dust explosion, spontaneous combustion, equipment damage and reduced field visibility. The fully mechanized excavation face of the development machine is a main source for generating mine coal dust, and dust falling treatment is mainly carried out underground at present by a spraying system arranged on the development machine.
The spraying system uses a water nozzle (1 mm) with a fixed caliber. However, in the actual use process, the spraying effect of the existing water nozzle is easily influenced due to the instability of the water supply source condition. And when the heading machine needs to be stopped for alternate anchoring and protecting operation (the nozzle does not spray water at the moment), the nozzle is easy to be blocked by coal dust. Thus, the dust-extinguishing function cannot be normally realized.
Therefore, in view of the above circumstances, a dust suppression device with adaptive flow and anti-blocking function is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a heading machine has the water spray dust suppression device of anti-blocking and adaptive flow, overcomes the weak point among the prior art, provides a water pressure/flow self-adaptation, filterable water impurity, simple structure, convenient operation, mining high-efficient dust suppression device of small.
The utility model discloses a following technical scheme realizes:
a heading machine is provided with a water spraying and dust suppression device with anti-blocking and self-adaptive flow, which comprises,
the nozzle head is internally provided with a through cavity A and a through cavity B which are communicated along the axial direction, the through cavity A is arranged in a conical shape, the large end surface of the through cavity A is communicated with the through cavity B, and the small end surface of the through cavity A forms a nozzle opening on the nozzle head;
the nozzle comprises a nozzle body, wherein an inner cavity is arranged in the nozzle body, the tail part of a nozzle head is connected in the inner cavity in a threaded manner, a valve core is connected in the inner cavity in a sliding manner, one end of the valve core is provided with a conical surface attached to a through cavity A, a compression spring is arranged between the other end of the valve core and the inner wall of the bottom surface of the nozzle body, the valve core divides the inner cavity into a first inner cavity and a second inner cavity, and the compression spring is arranged in the second inner cavity;
the inner wall of the nozzle body is provided with a water inlet channel communicated with the first inner cavity and the bottom surface of the nozzle body, and a gas outlet channel communicated with the second inner cavity and the outer wall of the nozzle body.
Furthermore, a water guide core is arranged in the through cavity B and is in interference fit with the through cavity B, a threaded water guide groove is formed in the outer wall of the water guide core, and a through hole for the valve core to penetrate through is formed in the water guide core in the axial direction.
Furthermore, an annular limiting boss is arranged on the outer wall of the nozzle head, and a limiting step matched with the annular limiting boss is arranged on the inner wall of the first inner cavity.
Furthermore, a sealing rubber pad is arranged between the annular limiting boss and the limiting step binding face.
Further, the outer wall of the bottom surface of the nozzle body is fixedly connected with a filter screen.
The utility model has the advantages that;
1. the utility model can limit the water pressure and water flow self-adapting by the cooperation of the compression spring and the valve core, and automatically adjust the spray effect;
2. when the device does not work, the conical surface of the valve core is tightly attached to the conical surface of the nozzle head, and the front end of the valve core can be inserted into the nozzle to prevent dust and blockage;
3. the dust suppression device has small volume and convenient operation;
4. the device is convenient to install and debug and convenient to use and maintain in the later period.
Drawings
Fig. 1 is a schematic view of the cross-section explosion structure of the present invention.
Figure 2 is the utility model discloses along inlet channel cross-sectional view.
Fig. 3 is a cross-sectional view of the present invention along the air outlet pipe.
Fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1~4,
specifically, as shown in 1~4, a water-spraying dust suppression device with anti-blocking and self-adaptive flow for a heading machine comprises,
the nozzle comprises a nozzle head 10, wherein a through cavity A101 and a through cavity B102 which are communicated are axially arranged in the nozzle head 10, the through cavity A101 is arranged in a conical shape, the large end face of the through cavity A101 is communicated with the through cavity B102, and the small end face of the through cavity A forms a nozzle opening on the nozzle head 10;
the nozzle comprises a nozzle body 20, wherein an inner cavity 201 is formed in the nozzle body 20, the tail part of a nozzle head 10 is connected in the inner cavity 201 in a threaded manner, a valve core 202 is connected in the inner cavity 201 in a sliding manner, one end of the valve core 202 is provided with a conical surface attached to a through cavity A101, a compression spring 203 is arranged between the other end of the valve core 202 and the inner wall of the bottom surface of the nozzle body 20, the valve core 202 divides the inner cavity 201 into a first inner cavity 2011 and a second inner cavity 2012, and the compression spring 203 is arranged in the second inner cavity 2012;
the inner wall of the nozzle body 20 is provided with a water inlet channel 204 communicating with the first inner cavity 2011 and the bottom surface thereof, and is further provided with a gas outlet channel 205 communicating with the second inner cavity 2012 and the outer wall thereof (in the figure, 2051 is a process plug welding position of the gas outlet channel).
Specifically, in order to reduce the damage of the water spray dust suppression device, the valve core 202 is usually made of copper, and the distance between the valve core 202 and the nozzle opening is regulated and controlled by the pressure of the inlet water, so that a better water outlet effect is obtained.
In a further scheme, in order to enable the water discharged from the nozzle to have a better mist spraying effect, a water guide core 1021 is arranged in the through cavity B102, the water guide core 1021 is in interference fit with the through cavity B102, a threaded water guide groove 10211 is arranged on the outer wall of the water guide core 1021, so that pressure water enters the threaded water guide groove 10211 and is sprayed out from the nozzle, a swirling effect is achieved, water mist is easier to form, and a through hole for the valve core 202 to penetrate through is axially formed in the water guide core 1021.
In a further scheme, in order to enable the nozzle head 10 and the nozzle body 20 to be in threaded connection with a limiting effect, an annular limiting boss 103 is arranged on the outer wall of the nozzle head 10, and a limiting step 20111 matched with the annular limiting boss 103 in position is arranged on the inner wall of the first inner cavity 2011.
In a further scheme, in order to make the threaded connection between the nozzle head 10 and the nozzle body 20 watertight, a sealing rubber gasket 104 is arranged between the annular limiting boss 103 and the abutting surface of the limiting step 20111.
Further scheme, in order to reduce the debris in the pressurized water and get into nozzle body 20, the outer wall of nozzle body 20 bottom surface passes through clamp 207, fixedly connected with filter screen 206.
In the specific working process, when the heading machine does not work and does not need spraying, no external water exists, at the moment, the valve core 202 is in an original state, and the conical surface of the valve core 202 is tightly attached to the conical surface of the nozzle head, so that external coal dust is prevented from entering the device and blocking in production;
when the water pressure of the underground water source for supplying water for spraying is too low or the water flows too little, the external water pressure is small, so that the force for pushing the compression spring 203 is small, and the opening of the valve core 202 attached to the conical surface is small, so that a good spraying effect can be achieved when the water pressure is low;
when the water pressure and water level of the underground water source for supplying water for spraying are normal, the external water pressure can push the joint conical surface of the valve core 202 to be completely opened, and at the moment, the spraying achieves an ideal effect.
Claims (5)
1. A heading machine is provided with a water spraying dust suppression device with anti-blocking and self-adaptive flow, which is characterized by comprising,
the nozzle head (10), there are communicating through cavity A (101), through cavity B (102) axially in the said nozzle head (10), the said through cavity A (101) takes the form of the conical arrangement, its big end is communicated with through cavity B (102), the small end forms the nozzle mouth on the nozzle head (10);
the nozzle comprises a nozzle body (20), wherein an inner cavity (201) is formed in the nozzle body (20), the tail part of a nozzle head (10) is in threaded connection with the inner cavity (201), a valve core (202) is connected in the inner cavity (201) in a sliding mode, one end of the valve core (202) is provided with a conical surface attached to a through cavity A (101), a compression spring (203) is arranged between the other end of the valve core and the inner wall of the bottom surface of the nozzle body (20), the valve core (202) divides the inner cavity (201) into a first inner cavity (2011) and a second inner cavity (2012), and the compression spring (203) is arranged in the second inner cavity (2012);
the inner wall of the nozzle body (20) is provided with a water inlet channel (204) communicated with the first inner cavity (2011) and the bottom surface of the nozzle body, and the inner wall of the nozzle body is also provided with a gas outlet channel (205) communicated with the second inner cavity (2012) and the outer wall of the nozzle body.
2. The heading machine with the water spraying and dust suppression device for preventing blockage and adaptive flow according to claim 1, wherein a water guide core (1021) is arranged in the through cavity B (102), the water guide core (1021) is in interference fit with the through cavity B (102), a threaded water guide groove (10211) is formed in the outer wall of the water guide core (1021), and a through hole for the valve core (202) to pass through is formed in the water guide core (1021) in the axial direction.
3. A heading machine with anti-blocking and adaptive-flow water-spraying dust suppression device according to claim 1, wherein the outer wall of the nozzle head (10) is provided with an annular limiting boss (103), and the inner wall of the first inner cavity (2011) is provided with a limiting step (20111) matched with the annular limiting boss (103) in position.
4. A heading machine with anti-blocking and self-adaptive flow water-spraying dust suppression device according to claim 3, wherein a sealing rubber gasket (104) is arranged between the abutting surfaces of the annular limiting boss (103) and the limiting step (20111).
5. The heading machine with the water-spraying dust suppression device for the heading machine according to claim 1~4, wherein the outer wall of the bottom surface of the nozzle body (20) is fixedly connected with a filter screen (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222307054.5U CN218439436U (en) | 2022-10-27 | 2022-10-27 | Heading machine has water spray dust suppression device of anti-blocking and self-adaptation flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222307054.5U CN218439436U (en) | 2022-10-27 | 2022-10-27 | Heading machine has water spray dust suppression device of anti-blocking and self-adaptation flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218439436U true CN218439436U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222307054.5U Active CN218439436U (en) | 2022-10-27 | 2022-10-27 | Heading machine has water spray dust suppression device of anti-blocking and self-adaptation flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218439436U (en) |
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2022
- 2022-10-27 CN CN202222307054.5U patent/CN218439436U/en active Active
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