Dust discharging cover with dust raising prevention function

Abstract

The utility model discloses a dust discharging cover with a dust raising prevention function, and relates to the technical field of dust discharging covers, the dust discharging cover comprises a dust discharging cover and a lifting dust discharging assembly, and the lifting dust discharging assembly is used for reducing the fall height between a discharging opening and a vehicle hopper during discharging; a scraping assembly is further arranged on the inner side of the dust discharging cover and used for conducting scraping operation on discharged dust when the vehicle moves. By arranging the lifting dust discharging assembly and the dust discharging cover, the discharging height of dust can be reduced, the effect of reducing flying dust is achieved, meanwhile, the dust discharging cover and the outer dustproof rubber piece can intercept the flying dust and prevent the flying dust from being scattered outwards, the intercepted flying dust can be sucked through suction force provided by an existing dust suction pipeline for the dust suction pipe, and the dust discharging efficiency is improved. And the dust is sucked into the buffer tank of the dust removal pipeline at the top of the blast furnace, so that no dust is generated during dust discharging, the risk of environmental protection assessment is eliminated, and the hazard risk of occupational diseases caused by the fact that workers inhale dust is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal covers, in particular to a dust removal cover with the function of preventing dust. Background Art

[0002] The buffer tank of the dust removal pipe on the top of the blast furnace captures about one ton of coarse dust particles every day. The particulate dust in the buffer tank is manually transported to the ash storage pipe and unloaded to an open vehicle through the ash storage pipe. Then, the open vehicle regularly transports it to the material yard. Since the unloading drop of the ash storage pipe is close to 55 meters, the downward impact force is large when the ash is discharged from the pipe, resulting in unorganized emission of dust and causing environmental air pollution. Based on this, a dust hood is installed at the ash unloading place of the furnace to collect the dust generated during ash unloading. A branch pipe is added to the existing dust collection pipe to connect with the dust collection hood. After the pipeline is installed, no dust is generated during ash unloading. Utility Model Content

[0003] The purpose of the utility model is to provide a dust removal cover with dust prevention function in order to solve the above-mentioned problems.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a dust-proof dust discharge cover, comprising a dust discharge cover, a top of which is provided with a lifting dust discharge assembly extending into the interior of the dust discharge cover, the lifting dust discharge assembly being used to realize the lifting operation of the dust discharge cover and reduce the height difference between the discharge port and the vehicle bucket during unloading;

[0005] A scraper assembly is also provided on the inner side of the dust unloading cover, and the scraper assembly is used to scrape the unloaded dust when the vehicle moves;

[0006] The lifting dust unloading assembly includes a fixed support plate, an electric push rod, a discharge pipe, a dust suction pipe, a corrugated connecting pipe, an extended discharge pipe, a dust suppression film and an electric valve;

[0007] The fixed support plate is distributed above the dust unloading cover, and the electric push rod is symmetrically installed on the top of the fixed support plate, and the output end of the electric push rod passes through the fixed support plate and is fixedly connected to the two side surfaces of the dust unloading cover, and the electric push rod is used to realize the lifting operation of the dust unloading cover;

[0008] The discharge pipe and two dust suction pipes are fixed on the top of the fixed support plate and distributed on the two electric push rods, and the two dust suction pipes are symmetrically distributed with the discharge pipe as the center;

[0009] The extended discharge pipe and the two electric valves are fixed to the top of the inner wall of the dust unloading cover, and the two electric valves are symmetrically distributed with the extended discharge pipe as the center. Three corrugated connecting pipes are provided, and the three corrugated connecting pipes are fixed between the fixed support plate and the dust unloading cover. The upper and lower ends of the corrugated connecting pipe located in the middle are respectively connected to the discharge pipe and the extended discharge pipe, and the upper and lower ends of the two corrugated connecting pipes distributed on both sides are respectively connected to the dust collection pipe and the electric valve;

[0010] The dust reduction films are provided in plurality and are distributed in a circumferential manner and fixed at the bottom end of the extended discharge pipe.

[0011] As a further solution of the utility model: the scraper assembly includes a lifting rod, a limiting round block, a connecting horizontal plate, and a scraper rubber roller;

[0012] There are four lifting rods arranged in a matrix, and the four lifting rods extend from the upper sides of the ash unloading cover to the lower side of the ash unloading cover, and two connecting cross plates are provided and fixed to the bottom ends of the two lifting rods respectively;

[0013] The scraper rubber rollers are provided with two and are rotatably connected to the middle of the two connecting horizontal plates. The two scraper rubber rollers are symmetrically distributed with the extended discharge pipe as the center. The scraper rubber rollers are overlapped with the upper edge of the vehicle bucket through the scraper rubber rollers. When the vehicle moves, the scraper rubber rollers roll to scrape the discharged dust flat.

[0014] The limiting circular block is fixed on the top of the lifting rod and is larger than the outer diameter of the lifting rod, and is used to provide a limit for the downward movement of the lifting rod.

[0015] As a further solution of the present invention: the width of the scraper rubber roller is greater than the width of the vehicle bucket, and the horizontal height of the lower surface of the scraper rubber roller is lower than the horizontal height of the bottom of the connecting cross plate.

[0016] As a further solution of the present invention: external dust-proof films are fixed around the bottom of the dust removal cover, the distribution trajectory of the external dust-proof films is located outside the area where the scraping rubber roller is located, and the bottom horizontal height of the dust reduction film is flush with the bottom horizontal height of the external dust-proof film.

[0017] As a further solution of the present invention: the bottom of the dust reduction film and the external dust-proof film is formed with an upwardly raised arc portion, and the arc portion faces upward outside the distribution area of ​​the dust reduction film and the external dust-proof film.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By setting up a lifting ash unloading component and an ash unloading hood, the dust unloading height can be reduced to achieve the effect of reducing dust. At the same time, the ash unloading hood and the external dust-proof film can intercept the dust to prevent the dust from dispersing outside. The suction force provided by the existing dust suction pipe to the dust suction pipe can be used to suction the intercepted dust and suck the dust into the buffer tank of the blast furnace top dust removal pipe. In this way, no dust is generated during ash unloading, and the risk of occupational diseases caused by inhaling dust is prevented for employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a structural cross-sectional view of the dust removal cover of the utility model;

[0022] Figure 3 This is a cross-sectional exploded view of the dust removal hood of the present invention.

[0023] In the figure: 1. Dust discharge hood; 2. Lifting dust discharge assembly; 201. Fixed support plate; 202. Electric push rod; 203. Discharge pipe; 204. Dust suction pipe; 205. Corrugated connecting pipe; 206. Extended discharge pipe; 207. Dust suppression film; 208. Electric valve; 3. Scraper assembly; 301. Lifting rod; 302. Limiting circle; 303. Connecting horizontal plate; 304. Scraper rubber roller; 4. External dust-proof film. DETAILED DESCRIPTION

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

[0025] See also Figures 1 to 3 In an embodiment of the utility model, a dust-proof ash unloading cover includes an ash unloading cover 1. A lifting ash unloading assembly 2 extending into the interior of the ash unloading cover 1 is provided on the top of the ash unloading cover 1. The lifting ash unloading assembly 2 is used to realize the lifting operation of the ash unloading cover 1 and reduce the height difference between the unloading port and the vehicle bucket during unloading.

[0026] A scraper assembly 3 is also provided on the inner side of the dust unloading cover 1, and the scraper assembly 3 is used to scrape the unloaded dust when the vehicle moves;

[0027] The lifting dust unloading assembly 2 includes a fixed support plate 201, an electric push rod 202, a discharge pipe 203, a dust suction pipe 204, a corrugated connecting pipe 205, an extended discharge pipe 206, a dust suppression film 207 and an electric valve 208;

[0028] The fixed support plate 201 is distributed above the dust unloading cover 1, and the electric push rod 202 is symmetrically installed on the top of the fixed support plate 201. The output end of the electric push rod 202 passes through the fixed support plate 201 and is fixedly connected to the two sides of the dust unloading cover 1. The electric push rod 202 is used to realize the lifting operation of the dust unloading cover 1;

[0029] The discharge pipe 203 and two dust suction pipes 204 are fixed to the top of the fixed support plate 201 and distributed on the two electric push rods 202. The two dust suction pipes 204 are symmetrically distributed with the discharge pipe 203 as the center.

[0030] The extended discharge pipe 206 and two electric valves 208 are fixed to the top of the inner wall of the dust discharge cover 1, and the two electric valves 208 are symmetrically distributed with the extended discharge pipe 206 as the center. Three corrugated connecting pipes 205 are provided, and the three corrugated connecting pipes 205 are fixed between the fixed support plate 201 and the dust discharge cover 1. The upper and lower ends of the corrugated connecting pipe 205 located in the middle are connected to the discharge pipe 203 and the extended discharge pipe 206 respectively. The upper and lower ends of the two corrugated connecting pipes 205 distributed on both sides are connected to the dust collection pipe 204 and the electric valve 208 respectively.

[0031] A plurality of dust suppression films 207 are provided and are distributed circumferentially and fixed at the bottom end of the extended discharge pipe 206;

[0032] The scraper assembly 3 includes a lifting rod 301, a limiting round block 302, a connecting horizontal plate 303, and a scraper rubber roller 304;

[0033] There are four lifting rods 301 arranged in a matrix arrangement. The four lifting rods 301 extend from the upper sides of the ash unloading cover 1 to the lower side of the ash unloading cover 1. Two connecting cross plates 303 are provided and are fixed to the bottom ends of the two lifting rods 301 respectively.

[0034] Two scraper rubber rollers 304 are provided and rotatably connected between the two connecting horizontal plates 303. The two scraper rubber rollers 304 are symmetrically distributed with the extended discharge pipe 206 as the center. The scraper rubber rollers 304 are overlapped with the upper edge of the vehicle bucket through the scraper rubber rollers 304. When the vehicle moves, the scraper rubber rollers 304 roll to scrape the discharged dust.

[0035] The limiting circular block 302 is fixed to the top of the lifting rod 301 and is larger than the outer diameter of the lifting rod 301, and is used to provide a limit for the downward movement of the lifting rod 301;

[0036] An outer dust-proof film 4 is fixed around the bottom of the dust removal cover 1. The distribution track of the outer dust-proof film 4 is located outside the area where the scraping rubber roller 304 is located, and the bottom horizontal height of the dust reduction film 207 is flush with the bottom horizontal height of the outer dust-proof film 4.

[0037] In this embodiment, it should be additionally explained that when the dust discharge cover 1 is in use, the fixed support plate 201 is suspended and fixed to the unloading workshop (or placed on the ground via a gantry, the size of which is larger than the vehicle size) via an external bracket, the discharge pipe 203 is connected to the dust storage pipe via an external pipe, and the dust suction pipe 204 is connected to the existing dust suction pipe via an external pipe, and the existing dust suction pipe provides suction force for the dust suction pipe 204;

[0038] When performing the dust unloading operation, the operating steps are as follows:

[0039] First, start the electric push rod 202 to drive the dust removal cover 1 to move upward as a whole, so that the bottom level of the outer dustproof film 4 is higher than the height of the vehicle, so that the vehicle can move smoothly under the dust removal cover 1;

[0040] When the vehicle bucket is directly below the ash unloading cover 1, the electric push rod 202 is reversed to move the ash unloading cover 1 downward. During this process, the scraper roller 304 contacts the upper surface of the bucket and cannot move further downward, while the ash unloading cover 1 can continue to move downward. At this time, the lifting rod 301 moves upward relative to the ash unloading cover 1, and the extended discharge pipe 206 will penetrate into the bucket. In addition, the outer dust-proof films 4 distributed at both ends enter the bucket, while the outer dust-proof films 4 distributed on both sides are located outside the bucket.

[0041] When the extended discharge pipe 206 is close to the bottom of the bucket, the electric push rod 202 can be stopped, and then the discharge valve of the ash storage pipe is opened, so that the dust inside the ash storage pipe falls into the bucket through the external pipe, the discharge pipe 203, the corrugated connecting pipe 205, and the extended discharge pipe 206. As more and more material is discharged, the electric push rod 202 can be controlled to drive the ash discharge cover 1 to slowly move upward to realize the dust discharge operation. During this process, the dust reduction film 207 can intercept the dust discharged from the extended discharge pipe 206 for the first time, thereby reducing the dust phenomenon;

[0042] In addition, the outer dust-proof film 4 can protect the unloading area of ​​the extended discharge pipe 206, so that the dust is intercepted in this area. At the same time, during the unloading process, the electric valve 208 is opened synchronously. At this time, the suction force provided by the existing dust suction pipe to the dust suction pipe 204 is transmitted to the inside of the dust unloading cover 1, and the dust intercepted by the outer dust-proof film 4 is sucked into the buffer tank of the blast furnace top dust removal pipe. In this way, no dust is generated during unloading, and the risk of occupational diseases caused by inhalation of dust by employees is prevented.

[0043] When the front end of the bucket is full, the vehicle needs to move so that the empty part at the rear end of the bucket moves under the dust unloading cover 1. During this process, the scraper rubber roller 304 can rotate under the action of friction. At the same time, the scraper rubber roller 304 can flatten the peak generated by the extended discharge pipe 206 when unloading. In this way, the dust inside the bucket can be prevented from exceeding the upper edge of the bucket.

[0044] Please refer to Figures 1 to 3 The width of the scraper rubber roller 304 is greater than the width of the vehicle bucket, and the horizontal height of the lower surface of the scraper rubber roller 304 is lower than the horizontal height of the bottom of the connecting cross plate 303.

[0045] In this embodiment, this structure can prevent the connecting cross plate 303 from contacting and colliding with the vehicle bucket, and the scraper rubber roller 304 can maintain good contact with the bucket, thereby ensuring the stability of the scraping operation.

[0046] Please refer to Figures 1 to 3 The bottom of the dust reduction film 207 and the outer dust-proof film 4 is formed with an upwardly raised arc portion, and the arc portion is upwardly directed to the outside of the distribution area of ​​the dust reduction film 207 and the outer dust-proof film 4.

[0047] In this embodiment: the arc-shaped part at the bottom of the dust-reducing film 207 and the outer dust-proof film 4 enables the dust-reducing film 207 and the outer dust-proof film 4 to be better bent outward when they come into contact and squeeze with the bottom of the truck bed or the unloaded dust, thereby ensuring smooth subsequent unloading operations and, at the same time, maintaining a good interception state for the dust in the unloading area.

[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust removal cover with dust prevention function, comprising a dust removal cover (1), characterized in that: The top of the ash unloading cover (1) is provided with a lifting ash unloading assembly (2) extending into the interior of the ash unloading cover (1), and the lifting ash unloading assembly (2) is used to realize the lifting operation of the ash unloading cover (1) and reduce the height difference between the discharge port and the vehicle bucket during unloading; A scraper assembly (3) is also provided on the inner side of the dust unloading cover (1), and the scraper assembly (3) is used to scrape the unloaded dust when the vehicle moves; The lifting dust unloading assembly (2) comprises a fixed support plate (201), an electric push rod (202), a discharge pipe (203), a dust suction pipe (204), a corrugated connecting pipe (205), an extended discharge pipe (206), a dust suppression film (207) and an electric valve (208); The fixed support plate (201) is distributed above the dust discharge cover (1), the electric push rod (202) is symmetrically installed on the top of the fixed support plate (201), and the output end of the electric push rod (202) passes through the fixed support plate (201) and is fixedly connected to the two side surfaces of the dust discharge cover (1), and the electric push rod (202) is used to realize the lifting operation of the dust discharge cover (1); The discharge pipe (203) and two dust suction pipes (204) are fixed to the top of the fixed support plate (201) and distributed on the two electric push rods (202), and the two dust suction pipes (204) are symmetrically distributed with the discharge pipe (203) as the center; The extended discharge pipe (206) and the two electric valves (208) are fixed to the top of the inner wall of the dust discharge cover (1), and the two electric valves (208) are symmetrically distributed with the extended discharge pipe (206) as the center. Three corrugated connecting pipes (205) are provided, and the three corrugated connecting pipes (205) are fixed between the fixed support plate (201) and the dust discharge cover (1). The upper and lower ends of the corrugated connecting pipe (205) located in the middle are respectively connected to the discharge pipe (203) and the extended discharge pipe (206), and the upper and lower ends of the two corrugated connecting pipes (205) distributed on both sides are respectively connected to the dust collection pipe (204) and the electric valve (208); The dust suppression films (207) are provided in plurality and are distributed in a circumferential manner and fixed at the bottom end of the extended discharge pipe (206).

2. The dust-proof dust removal cover according to claim 1, characterized in that: The scraper assembly (3) comprises a lifting rod (301), a limiting circular block (302), a connecting horizontal plate (303), and a scraper rubber roller (304); Four lifting rods (301) are provided and distributed in a matrix. The four lifting rods (301) penetrate the ash unloading cover (1) from above both sides of the ash unloading cover (1) to the bottom of the ash unloading cover (1). Two connecting transverse plates (303) are provided and are respectively fixed to the bottom ends of the two lifting rods (301). Two scraper rubber rollers (304) are provided and are rotatably connected between the two connecting transverse plates (303). The two scraper rubber rollers (304) are symmetrically distributed with the extended discharge pipe (206) as the center. The scraper rubber rollers (304) are overlapped with the upper edge of the vehicle bucket through the scraper rubber rollers (304). When the vehicle moves, the scraper rubber rollers (304) roll to perform a scraping operation on the discharged dust. The limiting circular block (302) is fixed to the top of the lifting rod (301) and is larger than the outer diameter of the lifting rod (301), and is used to provide a limit for the downward movement of the lifting rod (301).

3. The dust-proof dust removal cover according to claim 2, characterized in that: The width of the scraper rubber roller (304) is greater than the width of the vehicle bucket, and the horizontal height of the lower surface of the scraper rubber roller (304) is lower than the horizontal height of the bottom of the connecting transverse plate (303).

4. The dust-proof dust removal cover according to claim 1, characterized in that: An external dust-proof film (4) is fixed around the bottom of the dust removal cover (1), the distribution track of the external dust-proof film (4) is located outside the area where the scraping rubber roller (304) is located, and the bottom horizontal height of the dust reduction film (207) is flush with the bottom horizontal height of the external dust-proof film (4).

5. The dust-proof dust removal cover according to claim 4, characterized in that: The bottoms of the dust reduction film (207) and the outer dust prevention film (4) are formed with an upwardly tilted arc portion, and the arc portion faces upward outside the distribution area of ​​the dust reduction film (207) and the outer dust prevention film (4).

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