Dust removal device of down-the-hole drill
By improving the connection method of the dust removal pipe of the down-the-hole drilling rig dust removal device, and using a three-way connector and pressure regulating valve to increase the air pressure, the problem of insufficient air pressure of the existing device was solved, and more efficient dust removal and backup air source guarantee were achieved.
Patent Information
- Application Number
- CN202423016545.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing dust removal devices for down-the-hole drilling rigs are not effective, mainly because the air pressure of the dust storage tank is insufficient, making it impossible to effectively remove dust from the down-the-hole drilling rig.
By changing the connection method of the dust removal pipe, the main air tank is connected to the first dust removal pipe through a T-joint, and a pressure regulating valve is added to increase the air pressure to 2.94 MPa, while retaining the dust storage tank as a backup air source.
The increased air pressure in the dust removal pipe improves the cleaning effect on down-the-hole drills and provides a backup air source in case of main air tank failure, ensuring continuous cleaning capability.
Smart Images
Figure CN223824954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dust removal devices, specifically a dust removal device for down-the-hole drilling rigs. Background Technology
[0002] The working environment of integrated down-the-hole (DH) drilling rigs in mines is generally accompanied by a large amount of dust. Although dust collection systems are installed, some dust cannot be collected and processed by these systems. Basically, after a few days of operation, a thick layer of dust accumulates on the rig's body, engine radiator, and all moving parts. According to the DH drilling rig maintenance manual, if the rig has been running for more than three days, the dust must be cleaned using a dust removal pipe.
[0003] Existing dust removal devices include an air compressor, a main air tank, a pressure regulating valve, a dust collection tank, and a dust removal pipe. The air compressor is connected to the main air tank, which is connected to the pressure regulating valve, which is connected to the dust collection tank, and the dust removal pipe is connected to the dust collection tank. Because the dust collection tank in existing dust removal devices primarily stores compressed air for the dust collection system and provides the airflow required by the dust removal pipe, and the maximum operating air pressure of the dust collection system is 0.6 MPa, the maximum storage pressure of the dust collection tank is also 0.6 MPa. The air pressure in the dust removal pipe is also only 0.6 MPa, which is too low to remove most of the dust from the down-the-hole drill rig, resulting in poor cleaning performance. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dust removal device for down-the-hole drilling rigs, which can not only meet the condition of storing compressed air for the dust collection system in the dust storage tank, but also increase the air pressure of the dust cleaning pipe and improve the cleaning effect of the dust cleaning pipe on the down-the-hole drilling rig.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.
[0006] A dust removal device for down-the-hole drilling rigs includes an air compressor, a main air tank, a pressure regulating valve, a dust collection tank, and a first dust removal pipe. The main air tank's outlet is connected to a T-joint; one joint of the T-joint is connected to the pressure regulating valve via a pipe; the other joint of the T-joint is connected to the first dust removal pipe, and a valve is provided between the other joint and the first dust removal pipe; the air compressor's outlet is connected to the main air tank's inlet via a pipe; the pressure regulating valve's inlet is connected to the main air tank's outlet via a pipe; and the pressure regulating valve's outlet is connected to the dust collection tank's inlet via a pipe.
[0007] Preferably, the outlet of the dust storage tank is connected to a straight connector, which is connected to the second dust removal pipe, and a valve is provided between the straight connector and the second dust removal pipe.
[0008] The advantages of this utility model are as follows: By changing the connection position of the first dust removal pipe and connecting it to the main air storage tank through a three-way connector, this utility model can not only meet the condition of the dust storage tank storing compressed air for the dust collection system, but also increase the air pressure of the dust removal pipe and improve the cleaning effect of the dust removal pipe on the down-the-hole drill; by retaining the second dust removal pipe on the dust storage tank, the compressed air in the dust storage tank can be used as a backup when the main air storage tank fails. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0010] The labels in the diagram are as follows: 1. Air compressor; 2. Main air tank; 3. Pressure regulating valve; 4. Dust-collecting air tank; 5. First dust removal pipe; 6. T-joint; 7. Straight-through joint; 8. Second dust removal pipe. Detailed Implementation
[0011] The present invention will now be described in detail with reference to the accompanying drawings.
[0012] like Figure 1 The dust removal device for a down-the-hole drilling rig shown includes an air compressor 1, a main air tank 2, a pressure regulating valve 3, a dust collection tank 4, and a first dust removal pipe 5. The air outlet of the main air tank 1 is connected to a three-way connector 6. One connector of the three-way connector 6 is connected to the pressure regulating valve 3 through a pipe, and the other connector of the three-way connector 6 is connected to the first dust removal pipe 5, with a valve provided between the other connector and the first dust removal pipe 5. The air outlet of the air compressor 1 is connected to the air inlet of the main air tank 2 through a pipe. The air inlet of the pressure regulating valve 3 is connected to the air outlet of the main air tank 2 through a pipe, and the air outlet of the pressure regulating valve 3 is connected to the air inlet of the dust collection tank 4 through a pipe.
[0013] The outlet of the dust storage tank 4 is connected to a straight connector 7, which is connected to the second dust removal pipe 8, and a valve is provided between the straight connector 7 and the second dust removal pipe 8.
[0014] Compressed air from the air compressor is stored in the main air tank. The compressed air in the main air tank is depressurized by a pressure regulating valve and supplied to the dust collection air tank. The dust collection air tank stores compressed air for the dust collection system. The air pressure in the main air tank can reach 2.94 MPa. Opening the valve of the first dust cleaning pipe can clean the down-the-hole drill. This not only meets the condition that the dust collection air tank stores compressed air for the dust collection system, but also increases the air pressure of the dust cleaning pipe, improving the cleaning effect of the dust cleaning pipe on the down-the-hole drill. In addition, the second dust cleaning pipe on the dust collection air tank is retained so that the compressed air in the dust collection air tank can be used as a backup when the main air tank fails, and the second dust cleaning pipe can be used to clean the down-the-hole drill.
Claims
1. A dust removal device for a down-the-hole drilling rig, comprising an air compressor, a main air tank, a pressure regulating valve, a dust-collecting air tank, and a first dust removal pipe, characterized in that, The air outlet of the main air tank is connected to a T-joint. One joint of the T-joint is connected to the pressure regulating valve through a pipe. The other joint of the T-joint is connected to the first dust removal pipe, and a valve is installed between the other joint and the first dust removal pipe. The air outlet of the air compressor is connected to the air inlet of the main air tank through a pipe. The air inlet of the pressure regulating valve is connected to the air outlet of the main air tank through a pipe. The air outlet of the pressure regulating valve is connected to the air inlet of the dust-collecting air tank through a pipe.
2. The dust removal device for a down-the-hole drill rig according to claim 1, characterized in that, The outlet of the dust storage tank is connected to a straight connector, which is connected to the second dust removal pipe, and a valve is provided between the straight connector and the second dust removal pipe.