Drilling dust collecting device of down-the-hole drill

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By designing a dust collection tower assembly and spray system into a down-the-hole drilling rig, the problems of equipment load and health threats posed by dust collection devices in existing technologies have been solved, achieving reduced equipment load and dust collection effects that can adapt to multiple pore sizes.

CN223661780UActive Publication Date: 2025-12-12SHANDONG TIANQI INTELLIGENT EQUIPMENT CO LTD

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Patent Information

Application Number: CN202520434453.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-13
Publication Date: 2025-12-12
Estimated Expiration: 2035-03-13

AI Technical Summary

Technical Problem

Existing down-the-hole drilling rig dust collection devices directly connect external dust collection equipment to the drilling site, resulting in increased equipment workload, high maintenance frequency, and significant health threats to operators. Furthermore, the maintenance time for large equipment is long and labor-intensive.

Method used

A dust collection device was designed, comprising a dust collection tower assembly, a dust collection frame, a filter plate, and a spray system. The device initially collects dust through the filter plate and uses spray water to suppress dust, thereby reducing the load on the dust collection equipment, adapting to different borehole diameters, and improving sealing performance.

Benefits of technology

It reduces the workload of the vacuum equipment, decreases the frequency of equipment maintenance, reduces the health threat to operators, adapts to multi-diameter drilling, and improves the versatility and sealing of the equipment.

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Abstract

The utility model provides a drilling dust collection device of a down-the-hole drill, which comprises a dust removal tower assembly, a tower body used for assisting in dust removal is arranged in the dust removal tower assembly, and a mounting groove used for mounting a dust removal frame is formed in the rear side surface of the tower body. Compared with the prior art, the dust removal tower has the advantages that the dust removal tower assembly, the dust removal frames, the first filter plate and the second filter plate are additionally arranged, the first filter plate and the second filter plate are movably installed in the containing grooves in the two dust removal frames respectively, the dust removal frames are connected in the installation grooves, the tail end of the right side of the dust suction inlet pipe is communicated with the drilling position, and dust is guided into the tower body through the dust suction inlet pipe; the first filter plate and the second filter plate are used for preliminary dust collection, the spraying pipe is used for dust falling of sucked air, the working load of the dust collection equipment can be reduced, the dust removal tower assembly is additionally arranged, the adjusting base is adjusted on the outer side of the adjusting outer stud according to the hole diameter of a drill hole, the diameter of the right end of the dust collection cover is adjusted, and the dust collection equipment can adapt to multi-hole-diameter drill hole dust collection.

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Description

Technical Field

[0001] This utility model belongs to the field of dust collection technology for down-the-hole drills, and specifically relates to a drilling dust collection device for down-the-hole drills. Background Technology

[0002] Down-the-hole (DH) drills are engineering equipment that drills holes in the ground or rock formations using an impact-rotation method. They are widely used in mining, tunnel construction, and foundation treatment. DH drills generate a large amount of dust during operation, and dust collection equipment is typically installed to collect and manage this dust. However, in most common DH drill operations, the dust collection system is simply connected directly to the drilling site, allowing the dust generated during drilling to be collected centrally through the suction pipe structure. This prevents dust from escaping, but it poses a threat to the health of operators and pollutes the air. This dust collection structure also increases the workload of the external suction equipment, leading to faster wear and tear and more frequent maintenance. Maintenance of large external suction equipment involves longer downtime and increases the workload of workers.

[0003] In summary, the down-the-hole drill dust collection device that directly connects the dust collection equipment to the drilling site has some problems in use. Therefore, it is hoped that a new structure can be proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drilling dust collection device for down-the-hole drills, and to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a drilling dust collection device for a down-the-hole drill, comprising: a dust collection tower assembly, wherein the dust collection tower assembly is provided with a tower body for auxiliary dust collection, the rear side of the tower body is provided with an installation groove for installing a dust collection frame, a set of dust collection frames are installed inside each of the two sets of installation grooves, the dust collection frame is provided with a placement frame, the upper surface of the placement frame is provided with a placement groove, a set of filter plates for dust collection is movably fitted inside the placement groove of the upper dust collection frame, a second filter plate is movably fitted inside the placement groove of the lower dust collection frame, a dust suction inlet pipe for connecting to the drilling position of the down-the-hole drill is fixedly connected above the tower body, a spray pipe is fixedly connected to the front side below the tower body, and a number of spray holes are provided at the rear end of the outer side of the spray pipe.

[0006] In a preferred embodiment, a main water pipe for guiding spray water is fixedly connected to the front side of the spray pipe. The main water pipe is interconnected with the spray pipe. A water outlet pipe is fixedly connected to the bottom of the tower body, which enables the main water pipe to guide spray water into the spray pipe and spray it out through the spray holes to treat the introduced air for dust suppression.

[0007] In a preferred embodiment, a dust extraction pipe is fixedly connected to the lower left side of the tower body. The left side of the dust extraction pipe is connected to an external dust extraction device. The dust extraction inlet pipe and the dust extraction outlet pipe are both interconnected with the inside of the tower body.

[0008] In a preferred embodiment, a sealing plate is fixedly connected to the rear side of the placement frame, a sealing ring is fixedly connected to the front side of the sealing plate, a sealing groove is opened on the rear side of the tower body around the installation groove, and a sealing groove is opened on the inner side of the rear side of the sealing groove.

[0009] In a preferred embodiment, the placement rack and the mounting groove are fitted together, the sealing plate and the sealing groove are fitted together and fixed with bolts, and the sealing ring and the sealing groove are fitted together to seal each other. This allows the dust collector rack to be placed in the mounting groove and the sealing plate and the sealing groove to be fitted together and fixed with bolts. The fitting of the sealing ring and the sealing groove improves the connection sealing performance.

[0010] In a preferred embodiment, a dust suction hood is fixedly connected to the right end of the dust suction pipe, and a number of sets of adjusting rods evenly distributed in a circle are fixedly connected to the left side of the dust suction hood. An adjusting external stud is fixedly connected to the outer side of the right end of the dust suction pipe.

[0011] In a preferred embodiment, the adjusting stud is threaded with an adjusting seat on its outer side, and the outer side of the adjusting seat and the right end of the outer side of the suction pipe are both fixedly connected with rotating seats of the same number and position as the adjusting rod.

[0012] In a preferred embodiment, the inner side of the rotating seat at the left end is connected to an adjusting rod two via a rotating shaft, and the inner side of the rotating seat at the right end is also connected to an adjusting rod one via a rotating shaft. The adjusting rod two and the adjusting rod one are integrally fixedly connected. The dust hood is a soft adjustment structure. According to the diameter of the drill hole, the adjusting seat is adjusted outside the adjusting stud, so that the diameter of the right end of the dust hood can be adjusted, which can adapt to dust collection of multi-diameter drill holes.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding dust collection tower components, dust collection racks, filter plate one and filter plate two, filter plate one and filter plate two are respectively placed in the slots of two sets of dust collection racks for movable installation. The dust collection racks are connected in the installation slots. The right end of the dust inlet pipe is connected to the drilled part. Dust is introduced into the tower body through the dust inlet pipe and initially collected by filter plate one and filter plate two. The spray pipe also draws in air for dust suppression, which can reduce the workload of the dust collection equipment.

[0015] 2. By adding a dust collection tower component, the adjusting seat can be adjusted outside the adjusting stud according to the borehole diameter, thereby adjusting the diameter of the right end of the dust collection hood, which can adapt to dust collection through multi-diameter boreholes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a drilling dust collection device for a down-the-hole drill according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the dust collection device for a down-the-hole drill rig according to the present invention, which removes dust from the dust removal tower assembly.

[0019] Figure 3 This is a schematic diagram of the dust collection tower component in a drilling dust collection device for a down-the-hole drill of this utility model.

[0020] Figure 4 This is a partial cross-sectional schematic diagram of the dust collection tower component in the drilling dust collection device of a down-the-hole drill of this utility model.

[0021] Figure 5 This is a schematic diagram of the dust collection frame in a drilling dust collection device for a down-the-hole drill according to the present invention.

[0022] In the diagram, 100-dust collector tower assembly, 101-tower body, 102-installation slot, 103-sealing slot, 104-sealing slot, 105-dust suction inlet pipe, 106-dust suction outlet pipe, 107-main water pipe, 108-spray pipe, 109-spray hole, 110-dust hood, 111-adjusting rod one, 112-adjusting rod two, 113-rotating seat, 114-adjusting external stud, 115-adjusting seat, 116-water outlet pipe;

[0023] 200-Dust removal rack, 201-Placement rack, 202-Placement slot, 203-Sealing plate, 204-Sealing ring;

[0024] 300-Filter Plate One;

[0025] 400-Filter Plate Two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 5 This utility model provides a technical solution: a drilling dust collection device for a down-the-hole drill, comprising: a dust removal tower assembly 100, wherein the dust removal tower assembly 100 is provided with a tower body 101 for auxiliary dust removal, and an installation groove 102 for installing a dust removal frame 200 is provided on the rear side of the tower body 101.

[0028] A set of dust removal racks 200 is installed inside each of the two sets of mounting slots 102. A placement rack 201 is provided in the dust removal rack 200. A placement slot 202 is opened on the upper surface of the placement rack 201. A set of filter plates 300 for dust removal is movably fitted inside the placement slot 202 of the upper dust removal rack 200.

[0029] A filter plate 400 is movably fitted inside the placement slot 202 of the lower dust collector 200. A dust suction pipe 105 for connecting to the drilling position of the downhole drill is fixedly connected above the tower body 101. A spray pipe 108 is fixedly connected to the front side below the tower body 101. Several sets of spray holes 109 are opened at the rear end of the outer side of the spray pipe 108.

[0030] A main water pipe 107 for guiding spray water is fixedly connected to the front side of the spray pipe 108. The main water pipe 107 and the spray pipe 108 are interconnected. A water outlet pipe 116 is fixedly connected to the bottom of the tower body 101, which enables the main water pipe 107 to guide spray water into the spray pipe 108 and spray it out through the spray hole 109 to treat the dust in the introduced air.

[0031] A dust extraction pipe 106 is fixedly connected to the lower left side of the tower body 101. The left side of the dust extraction pipe 106 is connected to an external dust extraction device. The dust extraction inlet pipe 105 and the dust extraction outlet pipe 106 are both connected to the inside of the tower body 101.

[0032] A sealing plate 203 is fixedly connected to the rear side of the placement rack 201, and a sealing ring 204 is fixedly connected to the front side of the sealing plate 203. A sealing groove 104 is opened on the rear side of the tower body 101 around the installation groove 102, and a sealing groove 103 is opened on the inner side of the rear side of the sealing groove 104.

[0033] The placement rack 201 and the mounting groove 102 are fitted together, the sealing plate 203 and the sealing groove 104 are fitted together and fixed with bolts, and the sealing ring 204 and the sealing groove 103 are fitted together to seal each other, so that the dust removal rack 200 is placed in the mounting groove 102 and the sealing plate 203 and the sealing groove 104 are fitted together and fixed with bolts. The fitting of the sealing ring 204 and the sealing groove 103 improves the connection sealing performance.

[0034] Please see Figures 1-5 As the first embodiment of this utility model: First, the user places filter plate 300 and filter plate 400 inside the placement slots 202 of the two sets of dust collector racks 200 respectively, so that the sealing plate 203 and the sealing groove 104 are fitted together and fixed with bolts, and the sealing ring 204 and the sealing groove 103 are fitted together to improve the connection sealing performance. Air from the drilled part is introduced into the tower body 101 through the dust inlet pipe 105, and the initial dust is collected by filter plate 300 and filter plate 400, which facilitates the subsequent disassembly and assembly of filter plate 300 and filter plate 400. Second, after the dust is collected by filter plate 300 and filter plate 400, the main water pipe 107 introduces spray water into the spray pipe 108, and sprays it out through the spray hole 109 to treat the introduced air for dust suppression, thereby reducing the workload of the dust collection equipment.

[0035] A dust suction hood 110 is fixedly connected to the right end of the suction pipe 105. Several sets of adjusting rods 111 are fixedly connected to the left side of the dust suction hood 110 in a circularly evenly distributed manner. An adjusting external stud 114 is fixedly connected to the outer side of the right end of the suction pipe 105.

[0036] An adjusting seat 115 is screwed onto the outer thread of the adjusting stud 114. Rotating seats 113, which are distributed in the same number and position as the adjusting rod 111, are fixedly connected to the outer side of the adjusting seat 115 and the right end of the outer side of the suction pipe 105.

[0037] The inner side of the left rotating seat 113 is connected to the second adjusting rod 112 via a rotating shaft, and the inner side of the right rotating seat 113 is also connected to the first adjusting rod 111 via a rotating shaft. The second adjusting rod 112 and the first adjusting rod 111 are integrally fixedly connected. The dust hood 110 has a soft adjustment structure. The adjusting seat 115 is adjusted outside the adjusting stud 114 according to the diameter of the drill hole, so that the diameter adjustment of the right end of the dust hood 110 can adapt to multi-diameter drilling dust collection.

[0038] Please see Figure 1 and Figure 3As a second embodiment of this utility model: Based on the first embodiment above, when drilling with a down-the-hole drill, different hole diameters are involved. According to the different hole diameters, the adjusting seat 115 is rotated on the outer thread of the adjusting stud 114, which drives the adjusting rod 112 to drive the adjusting rod 111 to rotate, thereby completing the adjustment of the inner and outer positions of the right end of the dust collection hood 110, changing the diameter of the dust collection hood 110, so as to be able to adapt to multi-diameter drilling and dust collection.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drilling dust collection device for a down-the-hole drill rig, comprising: A dust removal tower assembly (100) is characterized in that: the dust removal tower assembly (100) is provided with a tower body (101) for auxiliary dust removal, and the rear side of the tower body (101) is provided with an installation groove (102) for installing a dust removal frame (200). A set of dust removal racks (200) is installed inside the two sets of mounting slots (102). A placement rack (201) is provided in the dust removal rack (200). A placement slot (202) is opened on the upper surface of the placement rack (201). A set of filter plates (300) for dust removal is movably fitted inside the placement slot (202) of the upper dust removal rack (200). A filter plate (400) is movably fitted inside the placement slot (202) of the lower dust removal frame (200). A dust suction pipe (105) for connecting the drilling position of the downhole drill is fixedly connected above the tower body (101). A spray pipe (108) is fixedly connected to the front side below the tower body (101). Several sets of spray holes (109) are opened at the rear end of the outer side of the spray pipe (108).

2. The drilling dust collection device for a down-the-hole drill rig as described in claim 1, characterized in that: The spray pipe (108) is fixedly connected to a main water pipe (107) for guiding spray water. The main water pipe (107) is connected to the spray pipe (108). The tower body (101) is fixedly connected to a water outlet pipe (116).

3. The drilling dust collection device for a down-the-hole drill rig as described in claim 2, characterized in that: A dust extraction pipe (106) is fixedly connected to the lower left side of the tower body (101). The left side of the dust extraction pipe (106) is connected to an external dust extraction device. The dust extraction inlet pipe (105) and the dust extraction outlet pipe (106) are both connected to the inside of the tower body (101).

4. The drilling dust collection device for a down-the-hole drill as described in claim 3, characterized in that: A sealing plate (203) is fixedly connected to the rear side of the placement rack (201), and a sealing ring (204) is fixedly connected to the front side of the sealing plate (203). A sealing groove (104) is opened on the rear side of the tower body (101) around the installation groove (102), and a sealing groove (103) is opened on the inner side of the rear side of the sealing groove (104).

5. The drilling dust collection device for a down-the-hole drill rig as described in claim 4, characterized in that: The placement rack (201) and the mounting groove (102) are fitted together, the sealing plate (203) and the sealing groove (104) are fitted together and fixed by bolts, and the sealing ring (204) and the sealing groove (103) are fitted together in a sealing manner.

6. The drilling dust collection device for a down-the-hole drill as described in claim 1, characterized in that: A dust hood (110) is fixedly connected to the right end of the dust inlet pipe (105). Several sets of adjusting rods (111) are fixedly connected to the left side of the dust hood (110) in a circularly evenly distributed manner. An adjusting stud (114) is fixedly connected to the outer side of the right end of the dust inlet pipe (105).

7. The drilling dust collection device for a down-the-hole drill rig as described in claim 6, characterized in that: The adjusting stud (114) is threaded with an adjusting seat (115) on its outer side. The outer side of the adjusting seat (115) and the right end of the outer side of the suction pipe (105) are fixedly connected with rotating seats (113) of the same number and position as the adjusting rod (111).

8. The drilling dust collection device for a down-the-hole drill as described in claim 7, characterized in that: The inner side of the rotating seat (113) at the left end is connected to the second adjusting rod (112) via a rotating shaft, and the inner side of the rotating seat (113) at the right end is also connected to the first adjusting rod (111) via a rotating shaft. The second adjusting rod (112) and the first adjusting rod (111) are integrally fixedly connected, and the dust cover (110) is a soft adjusting structure.