Dust removal device for belt coal conveying

Abstract

The utility model relates to the technical field of material conveying, discloses a dust removal device for belt coal conveying, and solves the problem that impurities clamped or embedded in a belt are inconvenient to clean by the existing dust removal device for the coal conveying belt. The anti-overflow baffle is arranged on the belt conveyor to prevent materials from overflowing, dust is reduced through the material conveying pipe, the dust return pipe, the dust remover and the dust return cover, and dust is further suppressed through the spraying openings and the sprayers. The adjusting mechanism can adjust the cleaning position according to needs, the sweeper can effectively clean belt clamping impurities, the air nozzle and the flushing part assist in cleaning, the collecting box collects sewage and materials, the guide plate and the filter screen assist in follow-up treatment, the springs guarantee the stability of the device, and the coal conveying and dust removing efficiency and the operation stability of the device are overall improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a dust removal device for belt conveying coal. Background Art

[0002] During the coal mining process, coal seams are often mixed with impurities such as rocks and ores. During transportation, collisions and bumps will produce particles of different sizes. Some of the smaller particles may be embedded in the gaps or textures on the belt surface during the operation of the belt. If it encounters moisture or in a humid environment, the coal powder on the surface of the coal may mix with water to form coal slime, etc. These hard impurities will enter the belt conveyor along with the coal, get stuck between the belt and other components, and cause serious scratches and cuts on the belt, or even cause the belt to break.

[0003] The existing Chinese patent with publication number CN218087558U discloses a dust treatment device suitable for the tail of a coal conveyor belt, which includes a mounting bracket, a dust hood, a scraper cleaning mechanism, an air duct interface, a bag dust collector and other components. The scraper cleaning mechanism is installed in front of the roller at the tail of the coal conveyor belt. The dust hood covers the bottom of the return belt and is connected to the bag dust collector. When the belt is running, the wear-resistant sleeve scrapes off the dust on the surface of the belt, and the dust enters the bag dust collector through the air duct interface. The adjustment push-pull rod in the rotation adjustment assembly drives the support plate and the articulated connecting rod to rotate through the transmission connecting rod, thereby adjusting the distance between the scraper assembly and the belt to adapt to the changes in the belt. This solution has limited effect on cleaning particles that are stuck or embedded in the belt, and it is difficult to completely remove these impurities by relying solely on a single-point contact scraper.

[0004] In view of the above-mentioned related technologies, a dust removal device for a belt conveyor of coal is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a dust removal device for belt conveying coal. The device is adopted to work, thereby solving the problem that the existing coal conveying belt dust removal device is inconvenient to clean impurities stuck or embedded in the belt.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust removal device for belt conveying coal, comprising a belt conveyor, wherein anti-overflow baffles are fixedly arranged on both sides and the top of the belt conveyor, legs are symmetrically fixedly arranged at the bottom ends of the anti-overflow baffles on both sides, support plates are fixedly arranged on the legs, a feed pipe is fixedly connected above the starting end of the belt conveyor, a dust return pipe is fixedly connected on the side wall of the feed pipe, a dust collector is connected at the other end of the dust return pipe, a dust return cover is fixedly arranged at the connection point between the feed pipe and the top of the belt conveyor, one side of the dust return cover is connected to the dust collector through a pipeline, the dust collector is fixedly installed above the belt conveyor, a spray port is opened in the middle of the anti-overflow baffle, a sprayer is fixedly installed above the spray port, and an adjustment mechanism is arranged on the legs at the corner of the output end of the belt conveyor;

[0007] The adjusting mechanism includes a hydraulic cylinder, and the two hydraulic cylinders are symmetrically fixed on the outer walls of the anti-overflow baffles on both sides. The output ends of the hydraulic cylinders are fixedly connected to slides, and the two slides are mounted on the legs on both sides. The two slides are detachably connected to a cleaning table, and holes are opened on the cleaning table. Two sweepers are rotatably arranged in the holes, and the upper ends of the sweepers are in contact with the lower side of the belt conveyor. Air nozzles and flushing parts are installed at both ends of the cleaning table.

[0008] Preferably, a spring is fixedly provided at the bottom end of the slide seat, the spring is sleeved on the outer wall of the leg and abuts against the support plate of the leg.

[0009] Preferably, the cleaner includes a threaded cylinder seat, two threaded cylinder seats are fixedly connected to the top of the support plate, an insertion shaft is threadedly connected to the inner wall of the threaded cylinder seat, a turntable is fixedly connected to the top of the insertion shaft, an axial ring is fixedly provided on the outer wall of the end of the insertion shaft close to the turntable, the axial ring is movably connected in the hole groove of the cleaning table, and a plurality of spring-acting parts are provided on the turntable.

[0010] Preferably, the elastic contact piece consists of a hemispherical protrusion, a compression spring and a limiting sleeve. The hemispherical protrusion is slidably connected to the inner wall of the limiting sleeve, the upper end of the hemispherical protrusion is in contact with the lower side of the belt conveyor, and a compression spring is fixedly arranged between the bottom end of the hemispherical protrusion and the inner bottom surface of the limiting sleeve. There are multiple limiting sleeves, and they are all fixedly connected to the turntable.

[0011] Preferably, an air pump is fixedly mounted on an outer wall of one side of the slide seat, and the air pump is connected to the air nozzle via an air pipe.

[0012] Preferably, a collecting box is provided below the adjusting mechanism, a scraper is fixedly provided at one end of the collecting box, a retractable and elastic wedge-shaped scraper head is slidably provided at the top of the scraper, the upper end of the wedge-shaped scraper head is fitted with the lower side of the belt conveyor, and two diverter plates are fixedly provided in the middle of the top of the collecting box, and the two diverter plates are located on both sides of the cleaning table.

[0013] Preferably, guide plates arranged obliquely are fixedly provided on the inner walls on both sides of the collecting box, the guide plates separate the collecting box into a sewage area and a cleaning agent area, and a filter screen is provided on the collecting box located inside the sewage area.

[0014] Preferably, the flushing member comprises a suction pump, one end of the suction pump is connected to an atomizing nozzle via a connecting pipe, and the other end of the suction pump is connected to a cleaning agent area of ​​a collection box via a connecting pipe.

[0015] Preferably, the suction pump is fixedly mounted on an outer wall of one side of the support plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model proposes a dust removal device for belt conveyor of coal, whose adjustment mechanism can flexibly adjust the position of the cleaning table, so as to facilitate targeted cleaning of the output end of the belt conveyor. The unique structural design of the cleaner, especially the elastic contact part, can well deal with the impurities stuck or embedded in the belt and remove them. The air nozzle and the flushing part can further clean the dust, and the collection box and its related parts can collect the sewage and coal slime generated by the cleaning. At the same time, the guide plate and the filter screen are convenient for subsequent treatment, and the spring can extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the position structure of the collection box of the utility model;

[0021] Figure 4 This is a schematic diagram of the spray port position structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the elastic contact member of the utility model.

[0023] In the figure: 1, belt conveyor; 11, anti-overflow baffle; 12, support leg; 121, spring; 122, support plate; 2, feed pipe; 21, dust return pipe; 3, dust collector; 22, dust return cover; 110, spray port; 4, sprayer; 5, sweeper; 50, threaded cylinder seat; 51, plug shaft; 52, shaft ring; 53, turntable; 54, elastic contact piece; 541, hemispherical protrusion; 542, compression spring; 54 3. Limit sleeve; 6. Adjustment mechanism; 61. Hydraulic cylinder; 62. Slide seat; 621. Air pump; 63. Cleaning table; 630. Hole slot; 65. Air nozzle; 66. Flushing part; 661. Suction pump; 662. Atomizing nozzle; 7. Collecting box; 71. Scraper; 72. Wedge-shaped scraper head; 73. Diverter plate; 74. Guide plate; 710. Sewage area; 711. Filter screen; 720. Cleaning agent area. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0027] Combination Figure 1-Figure 5 A dust removal device for belt conveying coal includes a belt conveyor 1. Anti-overflow baffles 11 are fixedly arranged on both sides and the top of the belt conveyor 1 to prevent materials from overflowing from both sides and the top of the belt conveyor 1 during transportation, thereby ensuring the cleanliness of the working area. Support legs 12 are symmetrically fixedly arranged at the bottom ends of the anti-overflow baffles 11 on both sides to provide stable support for the entire device. A feed pipe 2 is fixedly connected above the starting end of the belt conveyor 1 for conveying materials. A dust return pipe 21 is fixedly connected on the side wall of the feed pipe 2. The other end of the dust return pipe 21 is connected to a dust collector 3. A dust return cover 22 is fixedly provided at the connection point between the feed pipe 2 and the top of the belt conveyor 1. One side of the dust return cover 22 is connected to the dust collector 3 through a pipeline. The dust return pipe 21, the dust collector 3 and the dust return cover 22 cooperate to effectively reduce the dust generated during the feeding process; the dust collector 3 is fixedly installed above the belt conveyor 1, a spray port 110 is opened in the middle of the anti-overflow baffle 11, and a sprayer 4 is fixedly installed above the spray port 110 to further suppress dust flying. An adjustment mechanism 6 is provided on the support leg 12 at the corner of the output end of the belt conveyor 1 to facilitate the subsequent cleaning operation of the sweeper 5.

[0028] The adjustment mechanism 6 includes a hydraulic cylinder 61, two hydraulic cylinders 61 are symmetrically fixedly installed on the outer wall of the anti-overflow baffles 11 on both sides, the output end of the hydraulic cylinder 61 is fixedly connected with a slide 62, the two slides 62 are sleeved on the legs 12 on both sides, and the two slides 62 are detachably connected with a cleaning table 63, the hydraulic cylinder 61 adjusts the height and position of the cleaning table 63 by controlling the position of the slide 62, the cleaning table 63 is provided with a hole slot 630, two sweepers 5 are rotatably arranged in the hole slot 630, the upper end of the sweeper 5 is in contact with the lower side of the belt conveyor 1, and the short side walls of the cleaning table 63 are fixedly provided with air nozzles 65 and flushing parts 66 at intervals. The sweeper 5 rotates as the cleaning table 63 moves up and down, and the residual materials are removed by the friction vibration between the cleaning table 63 and the belt, and the air nozzle 65 and the flushing part 66 can further clean the surface of the belt conveyor 1. A support plate 122 is fixedly provided on the support leg 12 to support the adjustment mechanism 6; a spring 121 is fixedly provided at the bottom end of the slide seat 62, and the spring 121 is sleeved on the outer wall of the support leg 12 and abuts against the support plate 122 of the support leg 12; the spring 121 can reduce the vibration during the operation of the equipment, avoid the influence of vibration on the connection of various components, and extend the service life of the equipment.

[0029] The cleaner 5 includes a threaded barrel seat 50, and two threaded barrel seats 50 are fixedly connected to the top of the support plate 122 to provide stable support for the cleaner 5. The inner wall of the threaded barrel seat 50 is threadedly connected with an insertion shaft 51, which is convenient for adjusting the height and other parameters of the cleaner 5. The top of the insertion shaft 51 is fixedly connected with a turntable 53, and a shaft ring 52 is fixedly provided on the outer wall of the end of the insertion shaft 51 close to the turntable 53. The shaft ring 52 is movably connected in the hole groove 630 of the cleaning table 63, so that the turntable 53 can rotate flexibly. A plurality of elastic contact members 54 are provided on the turntable 53, which loosen or remove the impurity particles embedded on the belt surface through the friction vibration between the belt and the belt. The elastic contact member 54 is composed of a hemispherical protrusion 541, a compression spring 542 and a limiting sleeve 543. The hemispherical protrusion 541 is slidably connected to the inner wall of the limiting sleeve 543. The upper end of the hemispherical protrusion 541 is in contact with the lower side of the belt conveyor 1. A compression spring 542 is fixedly arranged between the bottom end of the hemispherical protrusion 541 and the inner bottom surface of the limiting sleeve 543. There are multiple limiting sleeves 543, and they are all fixedly connected to the rotating disk 53. Under the action of the compression spring 542 and the limiting sleeve 543, the hemispherical protrusion 541 can be adaptively adjusted according to the surface condition of the belt, better fit the belt for cleaning, and avoid damage to the belt.

[0030] An air pump 621 is fixedly installed on the outer wall of one side of the slide 62. The air pump 621 is connected to the air nozzle 65 through an air pipe. The air pump 621 provides an air source for the air nozzle 65, so that the air nozzle 65 can generate a strong airflow to effectively blow away the dust and small particles on the belt conveyor.

[0031] A collecting box 7 is fixedly installed on the inner walls of the two side legs 12 below the adjusting mechanism 6, and a scraper 71 is fixedly provided at one end of the collecting box 7. A retractable and elastic wedge-shaped scraper head 72 is slidably provided on the top of the scraper 71. The upper end of the wedge-shaped scraper head 72 is in contact with the lower side of the belt conveyor 1, and two diverter plates 73 are fixedly provided in the middle of the top of the collecting box 7. The two diverter plates 73 are located on both sides of the cleaning table 63; the collecting box 7 can collect sewage, materials, etc. generated during the cleaning process, and the scraper 71 and the wedge-shaped scraper head 72 can scrape the materials, etc. into the collecting box 7 to prevent accumulation, and the diverter plate 73 can guide the cleaned materials to accurately enter the collecting box 7; inclined guide plates 74 are fixedly provided on the inner walls on both sides of the collecting box 7, and the guide plates 74 separate the collecting box 7 into a sewage area 710 and a cleaning agent area 720; the guide plates 74 can effectively separate liquids of different properties for subsequent treatment and recycling. A filter screen 711 is provided on the collection box 7 located inside the sewage area 710. The filter screen 711 can filter out coal slime impurities mixed in the sewage to prevent the impurities from affecting subsequent treatment or discharge.

[0032] The flushing part 66 includes a suction pump 661, which is fixedly mounted on an outer wall of one side of the support plate 122. One end of the suction pump 661 is connected to an atomizing nozzle 662 via a connecting pipe, and the other end of the suction pump 661 is connected to a cleaning agent area 720 of a collecting box 7 via a connecting pipe. The suction pump 661 can extract the cleaning agent and spray it on the belt conveyor through the atomizing nozzle 662 to better clean the surface of the belt conveyor.

[0033] Working principle: The belt conveyor 1 is running to transport coal, and the anti-overflow baffles 11 on both sides and the top prevent material from overflowing. The feed pipe 2 feeds material to the belt conveyor 1, and the generated dust is collected by the dust collector 3 through the dust return pipe 21 and the dust return cover 22. The sprinkler 4 on one side of the dust collector 3 wets and washes the surface of the coal to inhibit further diffusion of dust. When the output end of the belt conveyor 1 needs to be cleaned, the hydraulic cylinder 61 of the adjustment mechanism 6 drives the slide 62 to move on the support leg 12, driving the cleaning table 63 and the cleaner 5, air nozzle 65 and flushing member 66 thereon to approach the belt. The plug shaft 51 of the cleaner 5 rotates during the up and down movement in the threaded barrel seat 50, driving the turntable 53 and the elastic contact member 54 to vibrate and clean the belt, and the air pump 621 supplies air to the air nozzle 65 to blow away impurities. The cleaned materials and sewage are collected by the scraper 71, wedge-shaped scraper 72 and diverter plate 73 of the collection box 7, the guide plate 74 guides the sewage to concentrate, the filter screen 711 filters and collects the coal slime, and the suction pump 661 extracts the cleaning agent through the atomizing nozzle 662 to clean the belt.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and all should be included in the scope of protection of the present invention.

Claims

1. A dust removal device for a belt conveyor of coal, comprising a belt conveyor (1), anti-overflow baffles (11) are fixedly provided on both sides and the top of the belt conveyor (1), support legs (12) are symmetrically fixedly provided at the bottom ends of the anti-overflow baffles (11) on both sides, and support plates (122) are fixedly provided on the support legs (12), a feed pipe (2) is fixedly connected above the starting end of the belt conveyor (1), a dust return pipe (21) is fixedly connected to the side wall of the feed pipe (2), the other end of the dust return pipe (21) is connected to a dust collector (3), a dust return cover (22) is fixedly provided at the connection point between the feed pipe (2) and the top of the belt conveyor (1), one side of the dust return cover (22) is connected to the dust collector (3) through a pipeline, the dust collector (3) is fixedly installed above the belt conveyor (1), a spray port (110) is opened in the middle of the anti-overflow baffle (11), and a sprayer (4) is fixedly installed above the spray port (110), characterized in that: An adjustment mechanism (6) is provided on the support leg (12) at the corner of the output end of the belt conveyor (1); The adjustment mechanism (6) comprises a hydraulic cylinder (61), wherein the two hydraulic cylinders (61) are symmetrically fixedly mounted on the outer walls of the overflow prevention baffles (11) on both sides, the output ends of the hydraulic cylinders (61) are fixedly connected to a slide seat (62), the two slide seats (62) are sleeved on the supporting legs (12) on both sides, the two slide seats (62) are detachably connected to a cleaning table (63), the cleaning table (63) is provided with a hole groove (630), two sweepers (5) are rotatably arranged in the hole groove (630), the upper ends of the sweepers (5) are in contact with the lower side of the belt conveyor (1), and both ends of the cleaning table (63) are equipped with an air nozzle (65) and a flushing member (66).

2. A dust removal device for a belt conveyor of coal according to claim 1, characterized in that: A spring (121) is fixedly arranged at the bottom end of the slide seat (62); the spring (121) is sleeved on the outer wall of the support leg (12) and abuts against the support plate (122) of the support leg (12).

3. A dust removal device for a belt conveyor of coal according to claim 1, characterized in that: The cleaner (5) comprises a threaded barrel seat (50), wherein two threaded barrel seats (50) are fixedly connected to the top of a support plate (122), an insertion shaft (51) is threadedly connected to the inner wall of the threaded barrel seat (50), a rotating disk (53) is fixedly connected to the top of the insertion shaft (51), a shaft ring (52) is fixedly arranged on the outer wall of the end of the insertion shaft (51) close to the rotating disk (53), and the shaft ring (52) is movably connected in a hole groove (630) of a cleaning table (63), and a plurality of elastic contact members (54) are arranged on the rotating disk (53).

4. A dust removal device for a belt conveyor of coal according to claim 3, characterized in that: The elastic contact member (54) is composed of a hemispherical protrusion (541), a compression spring (542) and a limiting sleeve (543); the hemispherical protrusion (541) is slidably connected to the inner wall of the limiting sleeve (543); the upper end of the hemispherical protrusion (541) is in contact with the lower side of the belt conveyor (1); a compression spring (542) is fixedly arranged between the bottom end of the hemispherical protrusion (541) and the inner bottom surface of the limiting sleeve (543); a plurality of limiting sleeves (543) are provided, and all are fixedly connected to the rotating disk (53).

5. The dust removal device for a belt conveyor of coal according to claim 1, characterized in that: An air pump (621) is fixedly mounted on an outer wall of one side of the slide seat (62), and the air pump (621) is connected to the air nozzle (65) via an air delivery pipe.

6. A dust removal device for a belt conveyor of coal according to claim 1, characterized in that: A collecting box (7) is provided below the regulating mechanism (6), a scraper (71) is fixedly provided at one end of the collecting box (7), a retractable and elastic wedge-shaped scraper head (72) is slidably provided at the top end of the scraper (71), the upper end of the wedge-shaped scraper head (72) is in contact with the lower side of the belt conveyor (1), and two diverter plates (73) are fixedly provided at the middle of the top end of the collecting box (7), and the two diverter plates (73) are located on both sides of the cleaning table (63).

7. A dust removal device for a belt conveyor of coal according to claim 6, characterized in that: Inclined guide plates (74) are fixedly provided on the inner walls of both sides of the collection box (7), the guide plates (74) dividing the collection box (7) into a sewage area (710) and a cleaning agent area (720), and a filter screen (711) is provided on the collection box (7) located inside the sewage area (710).

8. A dust removal device for a belt conveyor of coal according to claim 7, characterized in that: The flushing member (66) comprises a suction pump (661), one end of the suction pump (661) being connected to an atomizing nozzle (662) via a connecting pipe, and the other end of the suction pump (661) being connected to a cleaning agent area (720) of a collection box (7) via a connecting pipe.

9. A dust removal device for a belt conveyor of coal according to claim 8, characterized in that: The suction pump (661) is fixedly mounted on an outer wall of one side of the support plate (122).

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