Dust falling device for coal mine transportation

Abstract

The utility model discloses a dust falling device for coal mine transportation, including the cover, the outer wall bottom of cover is equipped with the first belt conveyor through the first through -going opening, the utility model discloses the setting of second spray pipe can play the dust suppression effect in the process that the coal lump on second belt conveyor falls to the first belt conveyor, to reduce the dust that produces in the cover, through the setting of first spray pipe, before second belt conveyor conveys the coal lump into the cover, can spray the water mist to the coal lump on the conveyer belt, to further reduce the dust that the coal lump produces when falling in the cover, and can avoid the dust that the cover in escapes from the second through -going opening, through the setting of third spray pipe, then can spray the coal lump on the first belt conveyor, to reduce the dust that the first belt conveyor conveys the coal lump produces, and can avoid the dust that the cover in escapes from the first through -going opening, thereby to the transfer point of coal mine conveying plays good dust falling effect.

Description

Technical Field

[0001] This utility model relates to the field of coal mine transportation technology, specifically a dust suppression device for coal mine transportation. Background Technology

[0002] Currently, belt conveyors are one of the commonly used coal transportation equipment in coal mining. At the transfer point of the belt conveyor, there is a certain height difference when the coal blocks fall from the current conveyor onto the belt of the next conveyor. Therefore, the dust mixed in with the coal blocks and the dust generated by the collision of coal blocks will be raised, affecting the coal mine environment.

[0003] A search revealed that patent CN222249287U discloses a dust suppression device for coal mine electromechanical conveyors. This device features a protective box above the feed end of the belt conveyor, collecting dust from coal falling onto the belt and reducing dust dispersion. A first water sprinkler at the upper opening of the protective box allows dust generated during feeding to settle directly. A buffer plate inside the protective box rotates upon impact with falling coal, reducing dust generated by direct coal impact on the belt and preventing violent impacts on the conveyor, thus protecting its lifespan. The buffer plate is positioned below the first water sprinkler, further reducing dust generated by coal impacts. A second water sprinkler at the discharge port further reduces dust. These components effectively trap dust within the protective box, significantly improving dust suppression.

[0004] While the above solution can reduce dust at the feeding end of the belt conveyor when coal blocks fall into the protective box, it cannot suppress dust generated before the coal blocks enter the protective box, which has significant limitations and needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide a dust suppression device for coal mine transportation to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dust suppression device for coal mine transportation includes a casing. A first belt conveyor is installed through a first through-hole at the bottom of the outer wall of the casing. A second belt conveyor is installed through a second through-hole on the outer wall of the casing above the first through-hole. The discharge end of the second belt conveyor is located directly above the first through-hole. First spray pipes are fixedly installed on the outer wall of the casing above the opening of the first through-hole. Third spray pipes are fixedly installed on the outer wall of the casing above the opening of the first through-hole. A third spray pipe is fixedly installed on the inner top wall of the casing. A second spray pipe is installed, and atomizing nozzles are installed on the first, second, and third spray pipes. An installation plate is bolted to the outer wall of the cover located below the second belt conveyor. A guide plate is hinged to the outer wall of the installation plate via a connecting seat. The guide plate is located inside the cover, and its bottom end is directly above the first belt conveyor. A scraper is detachably installed on the top of the guide plate. The guide plate is connected to the installation plate via a tensioning mechanism, and the top of the scraper is in close contact with the conveyor belt of the second belt conveyor.

[0007] As a further embodiment of this utility model: the tensioning mechanism includes a bolt that is installed on the mounting plate through a threaded hole, the threaded end of the bolt is rotatably fitted with a connecting sleeve, the end face of the connecting sleeve is connected to a tension spring, and the end of the tension spring away from the connecting sleeve is connected to a guide plate.

[0008] As a further embodiment of this utility model: a slot is provided at one end of the guide plate facing the scraper, and a connecting strip is fixedly installed on the outer wall of the scraper. The connecting strip is located in the slot and is fixedly connected to the guide plate by a plurality of bolt and nut assemblies.

[0009] As a further embodiment of this utility model: a material pouring block is fixedly installed on the inner wall of the cover, and the unloading end of the second belt conveyor is located between the material pouring block and the guide plate.

[0010] As a further embodiment of this utility model: a push plate is slidably provided on the top inclined surface of the pouring block, and an electric cylinder is fixedly installed on the outer wall of the cover, with the push rod end of the electric cylinder being fixedly connected to the push plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the installation of a second spray pipe, can suppress dust as coal blocks fall from the second belt conveyor onto the first belt conveyor, thereby reducing dust generated inside the casing. Through the installation of the first spray pipe, water mist can be sprayed onto the coal blocks on the conveyor belt before the second belt conveyor transports them into the casing, further reducing the smoke and dust generated when the coal blocks fall inside the casing and preventing dust from escaping through the second opening. Through the installation of a third spray pipe, the coal blocks on the first belt conveyor can be sprayed to reduce the dust generated during the transport of coal blocks by the first belt conveyor, and also prevent dust from escaping through the first opening, thus achieving a good dust suppression effect at the coal mine transport transfer point. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a dust suppression device for coal mine transportation.

[0013] Figure 2 This is a schematic diagram of the first opening in a dust suppression device for coal mine transportation.

[0014] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0015] Among them, the cover 1, the first through-hole 2, the first belt conveyor 3, the second through-hole 4, the second belt conveyor 5, the first spray pipe 6, the second spray pipe 7, the third spray pipe 8, the atomizing nozzle 9, the material pouring block 10, the electric cylinder 11, the push plate 12, the mounting plate 13, the connecting seat 14, the guide plate 15, the scraper 16, the connecting strip 17, the slot 18, the bolt 19, the connecting sleeve 20, and the tension spring 21. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-3In this embodiment of the present invention, a dust suppression device for coal mine transportation includes a housing 1. A first belt conveyor 3 is installed through a first through-hole 2 at the bottom of the outer wall of the housing 1. A second belt conveyor 5 is installed through a second through-hole 4 on the outer wall of the housing 1 above the first through-hole 2. The discharge end of the second belt conveyor 5 is located directly above the first through-hole 2. First spray pipes 6 are fixedly installed on the outer wall of the housing 1 above the opening of the first through-hole 2. Third spray pipes 8 are fixedly installed on the outer wall of the housing 1 above the opening of the first through-hole 2. A third spray pipe 8 is fixedly installed on the inner top wall of the housing 1. There is a second spray pipe 7. Atomizing nozzles 9 are installed on the first spray pipe 6, the second spray pipe 7 and the third spray pipe 8. The outer wall of the cover 1 located below the second belt conveyor 5 is fixedly installed with a mounting plate 13 by bolts. The outer wall of the mounting plate 13 is hinged with a guide plate 15 through a connecting seat 14. The guide plate 15 is located inside the cover 1, and the bottom end of the guide plate 15 is located directly above the first belt conveyor 3. A scraper 16 is detachably installed on the top end of the guide plate 15. The guide plate 15 is connected to the mounting plate 13 through a tensioning mechanism. The top end of the scraper 16 is in close contact with the conveyor belt of the second belt conveyor 5.

[0018] By adopting the above-mentioned solution, this utility model, during use, utilizes the second spray pipe 7 to suppress dust as coal blocks fall from the second belt conveyor 5 onto the first belt conveyor 3, thereby reducing dust generated inside the casing 1. Furthermore, the first spray pipe 6 sprays water mist onto the coal blocks on the conveyor belt before the second belt conveyor 5 transports them into the casing 1, further reducing dust generated as the coal blocks fall inside the casing 1 and preventing dust from escaping through the second opening 4. The spray pipe 8 is designed to spray the coal blocks on the first belt conveyor 3 to reduce the dust generated during the conveying process and prevent the dust inside the cover 1 from escaping through the first opening 2. This provides a good dust reduction effect at the transfer point of the coal mine conveyor. With the scraper 16, under the action of the tensioning mechanism, the top of the scraper 16 can be in close contact with the outer surface of the conveyor belt of the first belt conveyor 3 to scrape off the wet coal sludge adhering to the surface of the conveyor belt, thereby ensuring the conveying effect of the first belt conveyor 3.

[0019] Specific combination Figure 3 In one embodiment of the present invention, the tensioning mechanism includes a bolt 19 that is threaded through and mounted on the mounting plate 13. The threaded end of the bolt 19 is rotatably mounted with a connecting sleeve 20. A tension spring 21 is connected to the end face of the connecting sleeve 20. The end of the tension spring 21 away from the connecting sleeve 20 is connected to the guide plate 15.

[0020] By setting the tension spring 21, a certain tension can always be applied to the guide plate 15, so that the top of the scraper 16 can always be in contact with the conveyor belt of the second belt conveyor 5. By rotating the bolt 19 on the mounting plate 13, the tension of the tension spring 21 can be adjusted, thereby adjusting the tension applied to the guide plate 15. The operation is simple and convenient.

[0021] Specific combination Figure 3 In one embodiment of the present invention, the guide plate 15 has a slot 18 at one end facing the scraper 16, and a connecting strip 17 is fixedly installed on the outer wall of the scraper 16. The connecting strip 17 is located in the slot 18, and the connecting strip 17 is fixedly connected to the guide plate 15 by a plurality of bolt and nut assemblies.

[0022] The slot 18 and the connecting strip 17 facilitate the positioning, installation and removal of the scraper 16 on the guide plate 15.

[0023] Specific combination Figure 1 In one embodiment of the present invention, a material pouring block 10 is fixedly installed on the inner wall of the cover 1, and the unloading end of the second belt conveyor 5 is located between the material pouring block 10 and the guide plate 15. Furthermore, a push plate 12 is slidably provided on the top inclined surface of the material pouring block 10, and an electric cylinder 11 is fixedly installed on the outer wall of the cover 1. The push rod end of the electric cylinder 11 is fixedly connected to the push plate 12.

[0024] The material discharge block 10 is designed to discharge coal blocks falling from the second belt conveyor 5 inside the casing 1, so as to prevent the coal blocks from falling to the outside of the first belt conveyor 3.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust suppression device for coal mine transportation, characterized in that: The enclosure includes a housing (1). A first belt conveyor (3) is installed through a first through-hole (2) at the bottom of the outer wall of the housing (1). A second belt conveyor (5) is installed through a second through-hole (4) on the outer wall of the housing (1) above the first through-hole (2). The discharge end of the second belt conveyor (5) is located directly above the first through-hole (2). A first spray pipe (6) is fixedly installed on the outer wall of the housing (1) above the opening of the first through-hole (2). A third spray pipe (8) is fixedly installed on the outer wall of the housing (1) above the opening of the first through-hole (2). A second spray pipe (7) is fixedly installed on the inner top wall of the housing (1). The first spray pipe... Atomizing nozzles (9) are installed on pipe (6), second spray pipe (7) and third spray pipe (8). The outer wall of the cover (1) located below the second belt conveyor (5) is fixed with mounting plate (13) by bolts. The outer wall of the mounting plate (13) is hinged with guide plate (15) through connecting seat (14). The guide plate (15) is located inside the cover (1) and the bottom end of the guide plate (15) is located directly above the first belt conveyor (3). The top end of the guide plate (15) is detachably installed with scraper (16). The guide plate (15) is connected to the mounting plate (13) through a tensioning mechanism. The top end of the scraper (16) is in close contact with the conveyor belt of the second belt conveyor (5).

2. The dust suppression device for coal mine transportation according to claim 1, characterized in that: The tensioning mechanism includes a bolt (19) that is installed on the mounting plate (13) through a threaded hole. The threaded end of the bolt (19) is rotatably fitted with a connecting sleeve (20). The end face of the connecting sleeve (20) is connected to a tension spring (21). The end of the tension spring (21) away from the connecting sleeve (20) is connected to the guide plate (15).

3. The dust suppression device for coal mine transportation according to claim 1, characterized in that: The guide plate (15) has a slot (18) at one end facing the scraper (16). A connecting strip (17) is fixedly installed on the outer wall of the scraper (16). The connecting strip (17) is located in the slot (18). The connecting strip (17) is fixedly connected to the guide plate (15) by a number of bolt and nut assemblies.

4. A dust suppression device for coal mine transportation according to claim 1, characterized in that: The inner wall of the cover (1) is fixedly installed with a material pouring block (10), and the discharge end of the second belt conveyor (5) is located between the material pouring block (10) and the guide plate (15).

5. A dust suppression device for coal mine transportation according to claim 4, characterized in that: A push plate (12) is slidably provided on the top inclined surface of the pouring block (10), and an electric cylinder (11) is fixedly installed on the outer wall of the cover (1). The push rod end of the electric cylinder (11) is fixedly connected to the push plate (12).

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