Dust removal device

Abstract

The utility model discloses a dust removal device, which belongs to the technical field of coal mining roadway dust removal, and adopts the technical scheme that the dust removal device comprises a ventilation pipe, a water falling groove is formed in the bottom of the ventilation pipe, and suction hoppers are communicated with the two sides of the ventilation pipe. Compared with traditional single-end suction, the suction range is remarkably enlarged, dust widely distributed in a coal mining roadway can be more comprehensively captured, the overall dust removal efficiency is effectively improved, meanwhile, the water tank, the water pump, the suction pipe, the output pipe and the spray header form an efficient spray dust falling system, water in the water tank is pumped out through the suction pipe by the water pump, and the dust falling efficiency is improved. The dust-containing waste water is conveyed to the multiple spraying heads on the two sides of the interior of the ventilation pipe through the output pipe, all-directional spraying and dust falling are achieved, in addition, the ceramsite filtering layer and the fiber ball filtering layer in the water tank can filter the dust-containing waste water, cyclic utilization of water resources is achieved, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining roadway dust removal technical field, especially relates to a dust removal device. BACKGROUND

[0002] Coal as our country's important energy resources, occupies the important position in the national economy, in the process of coal mining, coal mining roadway will produce a large amount of dust, these dusts mainly come from the cutting, crushing, loading and transportation of coal, the dust in the coal mining roadway not only can cause damage to the equipment in the roadway, also can pose a serious threat to the health of miners, long-term inhalation of high concentration of dust can lead to miners suffer from pneumoconiosis and other occupational diseases, bring great pain to the miners and their families.

[0003] The dust removal device used in the traditional coal mine return air roadway carries out dust removal treatment to the coal mine return air roadway by atomizing and spraying clean water in the air, which needs a large amount of clean water to be sprayed continuously, and the wastewater after spraying is directly discharged, which is relatively wasteful.

[0004] The existing patent (publication number: CN214159022U) discloses a dust removal device for coal mine return air roadway, which is provided with a purification tank at the lower end of the ventilation pipeline. When the atomizing nozzle sprays atomized water, the fine dust in the air is wetted, and the mixed dust and wastewater enter the purification tank. After purification by the purification tank, the wastewater becomes clean water, which is then pumped into the clean water tank at the upper end for recycling, greatly saving water resources.

[0005] In view of the above problems, the existing patent provides a solution, but in the above-mentioned patent, the air blower is arranged in the ventilation pipeline, and the filter screen two is used to prevent dust from entering the air blower to avoid failure. However, in the high-dust environment of coal mining roadway, this design has obvious defects. Because a large amount of dust continuously impacts the filter screen two, the dust will gradually accumulate on the filter screen over time, eventually leading to blockage. Once the filter screen two is blocked, the ventilation resistance will increase, and the amount of air passing through per unit time will decrease, which directly affects the suction capacity of the air blower. Because the air blower needs to overcome greater resistance to extract air, the effect of sucking dust is reduced, and the subsequent spray dust suppression effect is also greatly reduced. In addition, the ventilation pipeline only uses one end for suction, and its coverage range and suction capacity are limited. In the actual coal mining roadway, the roadway space is large and the dust is widely distributed. Suction from one end is difficult to collect dust from all places comprehensively and effectively, thereby affecting the overall dust removal efficiency and failing to meet the actual use requirements.

[0006] Therefore, a dust removal device is proposed. UTILITY MODEL CONTENTS

[0007] The utility model discloses a dust collector can solve the patent in the above -mentioned blast -blowing machine is arranged in the ventilation pipeline inside, and relies on filter screen two prevents dust from entering blast -blowing machine to avoid its failure, however, in the coal mining roadway this high dust environment, this design has obvious defect, because a large amount of dust continuously impacts filter screen two, with the lapse of time, dust will gradually accumulate on filter screen, finally certainly leads to the blockage, once filter screen two is blocked, ventilation resistance will increase, the air volume of unit time through reduces along with it, this has direct influence to the suction capacity of blast -blowing machine, because blast -blowing machine needs to overcome greater resistance to extract air, and then cause the effect of sucking dust to drop, the subsequent spray dust-settling effect will also be greatly discounted, besides, the ventilation pipeline only adopts one end to suck, and its coverage and suction capacity are limited, in actual coal mining roadway, roadway space is larger and dust distribution is extensive, only sucks from one end, difficultly comprehensively effectively collects dust everywhere, thereby influences the overall dust removal efficiency, can not satisfy the practical use demand's problem.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a dust collector, including ventilation pipe, the bottom of ventilation pipe is equipped with the water fall, the both sides of ventilation pipe are connected with the suction basket, and the top of ventilation pipe is provided with suction dust removal mechanism.

[0009] The suction dust removal mechanism includes the suction structure arranged at the top of the ventilation pipe, the bottom of the ventilation pipe is provided with a water tank, the top of the water tank is communicated with the bottom of the water fall, the top of the water tank is provided with a water pump, the suction end of the water pump is communicated with a suction pipe, the bottom of the suction pipe is communicated with the bottom of the rear side of the water tank, the output end of the water pump is communicated with an output pipe, the both sides of the inside of the ventilation pipe are provided with spray heads, the top of the spray head is communicated with the bottom of the front side of the output pipe, and the middle and bottom of the inside of the water tank are respectively provided with a ceramsite filter layer and a fiber ball filter layer.

[0010] Preferably, the suction structure includes a block body fixedly connected to the top of the ventilation pipe, and a ventilation cavity is formed in the inside of the block body.

[0011] Preferably, the inside of the ventilation cavity is provided with a suction fan, and the bottom side of the inside of the ventilation cavity is provided with a first filter screen.

[0012] Preferably, the bottom side of the inside of the ventilation cavity is provided with a second filter screen, the second filter screen is located on the top of the first filter screen, and the second filter screen is located on the bottom of the suction fan.

[0013] Preferably, the both sides of the top of the block body are fixedly connected with exhaust pipes, and the exhaust pipes are located on the top of the ventilation cavity.

[0014] Preferably, the outside of the inside of the exhaust pipe is fixedly connected with a protective net, and the protective net is in the shape of a hexagonal grid.

[0015] Preferably, the bottom side of the water tank is provided with an inclined plate, and the rear side of the inclined plate is located at the front side of the bottom of the suction pipe.

[0016] Preferably, the front side of the fiber ball filter layer is fixedly connected with a pull handle, and the front side of the pull handle is in an arc shape.

[0017] Compared with the prior art, the dust removal device has the beneficial effects that:

[0018] 1. The dust removal device has the beneficial effects that: the suction dust removal mechanism is provided, the suction bucket on both sides of the ventilation pipe cooperates with the suction structure, compared with the traditional single-end suction, the suction range is significantly expanded, the dust widely distributed in the coal mining roadway can be more comprehensively captured, the overall dust removal efficiency is effectively improved, the water tank, the water pump, the suction pipe, the output pipe and the spray head form an efficient spray dust removal system, the water pump draws out the water in the water tank through the suction pipe, and the water is transported to the multiple spray heads on both sides in the ventilation pipe through the output pipe, all-round spray dust removal is realized, in addition, the ceramic filter layer and the fiber ball filter layer in the water tank can filter the dust-containing wastewater, the water resource recycling is realized, and the use cost is reduced.

[0019] 2. The dust removal device has the beneficial effects that: the suction structure is provided, the suction structure sucks from the top to the inside of the ventilation pipe, then the dust is treated by the spray dust removal method during the suction process of the double-sided suction bucket, the ventilation resistance in the ventilation pipe is kept relatively stable, which ensures that there is sufficient air volume in the ventilation pipe, avoids the adverse effects of dust on the suction structure, guarantees the stable suction capacity of the suction structure, makes the dust suction effect more stable, fully plays the spray dust removal effect, and fully meets the actual use requirements of the coal mining roadway. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the dust removal device of the utility model;

[0021] Figure 2 It is a structure diagram of the suction dust removal mechanism of the utility model;

[0022] Figure 3 It is a structure diagram of the suction structure of the utility model;

[0023] Figure 4 It is a structure diagram of the water tank of the utility model;

[0024] Figure 5 It is a structure diagram of the ceramic filter layer of the utility model.

[0025] In the figure, 1, ventilation pipe; 2, downspout; 3, suction bucket; 4, suction dust removal mechanism; 41, suction structure; 411, block; 412, ventilation cavity; 413, suction fan; 414, first filter screen; 415, second filter screen; 42, water tank; 43, water pump; 44, suction pipe; 45, output pipe; 46, shower head; 47, ceramic filter layer; 48, fiber ball filter layer; 5, exhaust pipe; 6, protective net; 7, inclined plate; 8, pull handle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A dust removal device, including ventilation pipe 1, the bottom of ventilation pipe 1 is provided with downspout 2, both sides of ventilation pipe 1 are communicated with suction bucket 3, and the top of ventilation pipe 1 is provided with suction dust removal mechanism 4.

[0029] Suction dust removal mechanism 4 includes suction structure 41 arranged at the top of ventilation pipe 1, the bottom of ventilation pipe 1 is provided with water tank 42, the top of water tank 42 is communicated with the bottom of downspout 2, the top of water tank 42 is provided with water pump 43, the suction end of water pump 43 is communicated with suction pipe 44, the bottom of suction pipe 44 is communicated with the bottom of the rear side of water tank 42, the output end of water pump 43 is communicated with output pipe 45, both sides in ventilation pipe 1 are provided with shower head 46, the top of shower head 46 is communicated with the bottom of the front side of output pipe 45, and the middle and bottom in water tank 42 are provided with ceramic filter layer 47 and fiber ball filter layer 48 respectively.

[0030] In the embodiment, the suction dust removal mechanism 4 is arranged, and during operation, the suction structure 41 at the top of the ventilation pipe 1 is started to suck air from the inside of the ventilation pipe 1. The suction buckets 3 on both sides of the ventilation pipe 1 suck the dust widely distributed in the coal mining roadway into the ventilation pipe 1 under the action of the suction structure 41. Compared with the traditional single-end suction mode, the design of the bilateral suction bucket 3 significantly expands the suction range and can more comprehensively capture dust, effectively improving the overall dust removal efficiency. When the dust-containing air enters the ventilation pipe 1, the water pump 43 at the top of the water tank 42 starts to work. The water pump 43 draws water from the back bottom of the water tank 42 through the suction pipe 44 and then delivers the water to the multiple spray heads 46 on both sides inside the ventilation pipe 1 through the output pipe 45. The spray heads 46 spray water in the form of mist to achieve all-round spray dust setting. During the spraying process, the water mist fully contacts the dust, making the dust wet and settling into the water collector 2 at the bottom of the ventilation pipe 1. The wastewater containing dust flows into the water tank 42 at the bottom along the water collector 2. The water tank 42 is provided with a ceramsite filter layer 47 and a fiber ball filter layer 48. When the wastewater passes through the two filter layers, the dust and other impurities in the wastewater are filtered and intercepted. The filtered water can be drawn and used again by the water pump 43, realizing the recycling of water resources and reducing the use cost. Moreover, since the bilateral suction bucket 3 is used to suck and spray dust setting, the ventilation resistance in the ventilation pipe 1 remains relatively stable, which ensures that there is sufficient air volume in the ventilation pipe 1, avoids the adverse effect of dust on the suction structure 41, guarantees the stable suction capacity of the suction structure 41, makes the dust suction effect more stable, and fully plays the effect of spray dust setting, fully meeting the actual use requirements of the coal mining roadway.

[0031] Specifically, as shown in Figure 3 The suction structure 41 includes a block body 411 fixedly connected to the top of the ventilation pipe 1, and a ventilation cavity 412 is formed in the inside of the block body 411.

[0032] Specifically, as shown in Figure 3 The inside of the ventilation cavity 412 is provided with a suction fan 413, and the bottom side of the inside of the ventilation cavity 412 is provided with a first filter screen 414.

[0033] Specifically, as shown in Figure 3 The bottom side of the inside of the ventilation cavity 412 is provided with a second filter screen 415, the second filter screen 415 is located on the top of the first filter screen 414, and the second filter screen 415 is located on the bottom of the suction fan 413.

[0034] In the embodiment, when the dust collection operation starts, the suction fan 413 is started, and the suction fan 413 rotates to generate suction force, so that a negative pressure environment is formed at the top of the ventilation pipe 1. Under the action of the negative pressure, the suction cups 3 on both sides of the ventilation pipe 1 suck the dust-containing air in the coal mine roadway into the ventilation pipe 1. The dust-containing air is first sprayed by the plurality of spray heads 46 in the ventilation pipe 1 to realize spray dust removal, and then passes through the first filter screen 414 and the second filter screen 415 arranged in the ventilation cavity 412 to realize two-stage protection and filtration, so that the residual fine dust is prevented from entering the suction fan 413, the abrasion of the suction fan 413 is prevented, the stable operation of the suction fan 413 is ensured, the stable suction capacity is maintained, the air entering the ventilation pipe 1 is ensured to be relatively clean, and the overall dust removal effect is improved.

[0035] Specifically, as shown in Figure 3 The two sides of the top of the block 411 are fixedly connected with the exhaust pipes 5, and the exhaust pipes 5 are located at the top of the ventilation cavity 412.

[0036] Specifically, as shown in Figure 3 The outer side of the inside of the exhaust pipe 5 is fixedly connected with the protective net 6, and the protective net 6 is in a hexagonal grid shape.

[0037] In the embodiment, the filtered air enters the ventilation cavity 412, and then is discharged through the exhaust pipes 5 on both sides of the top of the block 411, so that the air in the ventilation pipe 1 can flow more smoothly, and the continuous and stable operation of the dust removal operation is ensured. The hexagonal grid-shaped protective net 6 fixedly connected to the outer side of the inside of the exhaust pipe 5 can prevent external foreign matters from entering the exhaust pipe 5, and avoid that the foreign matters block the exhaust pipe 5 to affect the ventilation effect.

[0038] Specifically, as shown in Figure 5 The bottom side of the inside of the water tank 42 is provided with the inclined plate 7, and the rear side of the inclined plate 7 is located at the front side of the bottom of the suction pipe 44.

[0039] Specifically, as shown in Figure 5 The front side of the ceramic particle filter layer 47 and the fiber ball filter layer 48 is fixedly connected with the pull handle 8, and the front side of the pull handle 8 is in an arc shape.

[0040] In the embodiment: by setting the inclined plate 7 and the pull handle 8, the inclined plate 7 on the bottom side inside the water tank 42 plays a role in guiding the water flow, so that the filtered and purified wastewater can be more concentratedly sucked by the suction pipe 44, the recycling of the wastewater is improved, the residual of the purified wastewater at the bottom of the water tank 42 is reduced, the accumulation of the precipitated dust is avoided to affect the normal use of the water tank 42, and the arc-shaped pull handle 8 on the front side of the ceramsite filter layer 47 and the fiber ball filter layer 48 is convenient for the operator to hold, when the ceramsite filter layer 47 and the fiber ball filter layer 48 need to be cleaned or replaced, the operator can easily take out the ceramsite filter layer 47 and the fiber ball filter layer 48 from the water tank 42 through the pull handle 8, and the cleaning and replacement can be performed.

[0041] Working principle: in the process of using the dust removal device in the coal mining roadway, first, start the suction fan 413, the suction fan 413 rotates to form suction, which causes negative pressure at the top of the ventilation pipe 1, and the negative pressure drives the suction buckets 3 on both sides of the ventilation pipe 1 to suck the dust-containing air diffused in the coal mining roadway into the ventilation pipe 1, after the dust-containing air enters the ventilation pipe 1, the water pump 43 at the top of the water tank 42 is started at the same time, the water pump 43 draws water from the back bottom of the water tank 42 through the suction pipe 44, and then sends the water to the spray heads 46 on both sides inside the ventilation pipe 1 through the output pipe 45, the spray heads 46 spray water in the form of mist, the water mist contacts the dust-containing air in all directions, the dust is wetted and settled to the water trap 2 at the bottom of the ventilation pipe 1, the wastewater containing dust flows into the water tank 42 at the bottom along the water trap 2, and is filtered in turn by the ceramsite filter layer 47 and the fiber ball filter layer 48 in the water tank 42, the dust and other impurities are intercepted, the purification and recycling of water resources are realized, the filtered water can be extracted by the water pump 43 again, the use cost is reduced, and the air treated by the spray dust removal continues to rise, passes through the two-stage protection filtering of the first filter screen 414 and the second filter screen 415 in the ventilation cavity 412 in sequence, further removes the residual fine dust, avoids the fine dust from entering the suction fan 413 to cause abrasion, and guarantees the stable operation and stable suction capacity of the suction fan 413, finally, the filtered clean air enters the ventilation cavity 412, is discharged through the exhaust pipes 5 on both sides of the top of the block 411, the hexagonal grid protection net 6 in the exhaust pipe 5 prevents external foreign matters from entering, guarantees the smooth flow of the air in the ventilation pipe 1 and the continuous and stable dust removal operation, in addition, the inclined plate 7 on the bottom side in the water tank 42 guides the water flow, so that the purified wastewater is more concentratedly sucked by the suction pipe 44, the wastewater residue and dust precipitation are reduced, and the arc-shaped pull handle 8 on the front side of the ceramsite filter layer 47 and the fiber ball filter layer 48 is convenient for the operator to clean or replace the filter layer, and guarantees the normal use and efficient operation of the device.

[0042] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust extraction device comprising a duct (1), characterised in that: The bottom of the ventilation pipe (1) is provided with a downspout (2), both sides of the ventilation pipe (1) are communicated with suction cups (3), and the top of the ventilation pipe (1) is provided with a suction dust removal mechanism (4). The suction dust removal mechanism (4) comprises a suction structure (41) arranged at the top of the ventilation pipe (1), a water tank (42) arranged at the bottom of the ventilation pipe (1), a water pump (43) arranged at the top of the water tank (42), a suction pipe (44) communicated with the suction end of the water pump (43), an output pipe (45) communicated with the output end of the water pump (43), a spray head (46) arranged at both sides of the inside of the ventilation pipe (1), and a ceramic filter layer (47) and a fiber ball filter layer (48) arranged at the middle and the bottom of the inside of the water tank (42) respectively.

2. A dust extraction device according to claim 1, characterised in that: The suction structure (41) comprises a block (411) fixedly connected to the top of the ventilation pipe (1), and a ventilation cavity (412) is formed in the inside of the block (411).

3. A dust extraction device according to claim 2, wherein: The inside of the ventilation cavity (412) is provided with a suction fan (413), and the bottom side of the inside of the ventilation cavity (412) is provided with a first filter screen (414).

4. A dust extraction device according to claim 3, wherein: The bottom side of the inside of the ventilation cavity (412) is provided with a second filter screen (415), the second filter screen (415) is located on the top of the first filter screen (414), and the second filter screen (415) is located on the bottom of the suction fan (413).

5. A dust extraction device according to claim 2, wherein: Both sides of the top of the block (411) are fixedly connected with exhaust pipes (5), and the exhaust pipes (5) are located on the top of the ventilation cavity (412).

6. A dust extraction device according to claim 5, wherein: The outside of the inside of the exhaust pipe (5) is fixedly connected with a protective net (6), and the protective net (6) is in the shape of a hexagonal grid.

7. A dust extraction device according to claim 1, wherein: The bottom side of the inside of the water tank (42) is provided with an inclined plate (7), and the rear side of the inclined plate (7) is located on the front side of the bottom of the suction pipe (44).

8. A dust extraction device according to claim 1, characterised in that: The front side of the ceramic filter layer (47) and the fiber ball filter layer (48) is fixedly connected with a pull handle (8), and the front side of the pull handle (8) is in the shape of an arc.

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