Adsorption type dust removal equipment for asphalt mixing plant

Abstract

The utility model discloses adsorption type dust removal equipment for an asphalt mixing plant, which comprises a dust removal chamber, a honeycomb type dust hood assembly, air purification equipment, a feed opening, an air inlet and an air supply channel, the honeycomb type dust hood assembly is arranged at the top in the dust removal chamber, and the outer side of the honeycomb type dust hood assembly is connected with the air purification equipment through a dust conveying pipeline. The honeycomb type dust suction hood assembly is arranged around the discharging opening, a plurality of air inlets are formed in the bottom of the dust removal chamber, and the air inlets are communicated with external air through air supply channels; the honeycomb type dust suction hood assembly is composed of an outer ring dust suction hood, an inner ring dust suction hood and an air bellow. According to the adsorption type dust removal equipment, a traditional bucket type dust suction hood is changed into the porous honeycomb type dust suction hood, the porous honeycomb type dust suction hood is arranged around the periphery of the discharging opening in a close range, the larger adsorption area is generated, meanwhile, larger adsorption force is achieved, the production efficiency is improved, and the dust removal effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, and particularly relates to an adsorption type dust removal equipment for an asphalt mixing plant. Background Art

[0002] At present, environmental problems have increasingly attracted the attention of the public, and dust removal devices are widely used in various industries. Dust removal is an important part of the asphalt manufacturing industry. A large amount of dust is generated during the transportation and manufacturing of raw materials in the asphalt production line, and the dust reduction device can greatly reduce the air pollution caused by dust. The current bucket-shaped dust suction hood used in asphalt mixing plants sucks the dust or soot near the feeding port into the pipeline through negative pressure. Since there are only side pipelines and top pipelines, the adsorption points are few and the dust generation position is far from the pipeline adsorption points, resulting in poor adsorption effect of soot and dust. The asphalt fume and dust are directly discharged into the air, which will cause air pollution and cannot meet the environmental protection standards. Therefore, there is an urgent need for a dust and smoke suction hood for asphalt mixing plants that is reasonable in design, simple in structure, good in adsorption effect and high in efficiency to solve the problems that have always troubled those skilled in the art in the prior art. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adsorption type dust removal equipment for an asphalt mixing plant. The adsorption type dust removal equipment for an asphalt mixing plant replaces the traditional bucket-shaped dust-proof hood with a porous honeycomb type adsorption hood composed of an outer ring dust suction hood and an inner ring dust suction hood and arranged around the feeding port, and has the advantages of large adsorption area, closer distance to the dust generation position and greater adsorption force.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An adsorption type dust removal equipment for an asphalt mixing plant, characterized in that: it includes a dust removal chamber, a honeycomb type dust suction hood assembly, an air purification device, a feeding port, an air inlet and a air supply channel. The honeycomb type dust suction hood assembly is arranged at the top inside the dust removal chamber. The outside of the honeycomb type dust suction hood assembly is connected to the air purification device through a dust conveying pipeline. The honeycomb type dust suction hood assembly is arranged around the feeding port. A plurality of air inlets are arranged at the bottom of the dust removal chamber, and the air inlets are communicated with the external air through the air supply channel;

[0006] The honeycomb dust suction hood assembly consists of an outer ring dust suction hood, an inner ring dust suction hood, and a bellows; the outer ring dust suction hood is arranged in an upward-looking "mouth" shape, and the outer ring dust suction hood consists of a first bottom cover, a first outer side cover, a first inner side cover, and a first upper cover to form a pipeline dust removal path. The two sides of the first bottom cover are respectively fixedly connected to the lower ends of the first outer side cover and the first inner side cover, and the upper ends of the first outer side cover and the first inner side cover are fixedly connected to both sides of the first upper cover. One side of the outer ring dust suction hood is connected to the bellows; the inner ring dust suction hood is arranged inside the "mouth"-shaped outer ring dust suction hood. The inner ring dust suction hood consists of a second bottom cover, a second side cover, a third side cover, and a second upper cover to form a pipeline dust removal path. The two sides of the second bottom cover are respectively fixedly connected to the lower ends of the second side cover and the third side cover, and the upper ends of the second side cover and the third side cover are fixedly connected to the second upper cover. One end of the inner ring dust suction hood is connected to the outer ring dust suction hood or the bellows; the bellows is connected to an air purification device through a dust conveying pipeline.

[0007] Further preferably, the first inner side cover in the outer ring dust suction hood is arranged in an inclined manner.

[0008] Further preferably, a plurality of rectangular adsorption holes are arranged on the first bottom cover, the first outer side cover, and the first inner side cover in the outer ring dust suction hood.

[0009] Further preferably, the second side cover and the third side cover in the inner ring dust suction hood are both arranged in an inclined manner.

[0010] Further preferably, a plurality of rectangular adsorption holes are arranged on the second bottom cover, the second side cover, and the third side cover in the inner ring dust suction hood.

[0011] Further preferably, the inner ring dust suction hood is arranged in a "mouth" shape.

[0012] Further preferably, the inner ring dust suction hood is arranged in a multi-way one-word shape.

[0013] Further preferably, a plurality of circular adsorption holes are arranged on the first bottom cover, the first outer side cover, and the first inner side cover in the outer ring dust suction hood.

[0014] Further preferably, a plurality of circular adsorption holes are arranged on the second bottom cover, the second side cover, and the third side cover in the inner ring dust suction hood.

[0015] The beneficial effects of the present utility model are:

[0016] The adsorption type dust removal equipment for the asphalt mixing plant replaces the traditional bucket-shaped dust-proof cover with a porous honeycomb-shaped dust suction cover composed of an outer ring dust suction cover, an inner ring dust suction cover and an air box. The outer ring dust suction cover is arranged in an upward-looking square shape. The inner ring dust suction cover is arranged inside the square-shaped outer ring dust suction cover. The inner ring dust suction cover arranged in a square shape is applicable to an asphalt mixing plant with a large feeding port. The inner ring dust suction cover arranged in a multi-way linear shape is applicable to an asphalt mixing plant with multiple evenly distributed small feeding ports. In both cases, the dust suction cover can be arranged around the feeding port to increase the adsorption points.

[0017] The first inner side cover in the outer ring dust suction cover is arranged in an inclined manner to increase the adsorption area. Multiple adsorption holes are arranged on the first bottom cover, the first outer side cover and the first inner side cover in the outer ring dust suction cover. The second side cover and the third side cover in the inner ring dust suction cover are both arranged in an inclined manner to increase the adsorption area. Multiple adsorption holes are arranged on the second bottom cover, the second side cover and the third side cover in the inner ring dust suction cover. The purpose is to have multiple horizontal and vertical adsorption holes. The adsorption holes are close to the dust generating position. With more adsorption holes and a larger adsorption area, a good adsorption effect is ensured.

[0018] When the honeycomb-shaped dust suction cover assembly is in use, it only needs to replace the existing bucket-shaped dust-proof cover and be installed in the same position, that is, the honeycomb-shaped dust suction cover assembly is installed on the top inside the dust removal chamber. One side of the outer ring dust suction cover is connected to the air box. One end of the inner ring dust suction cover is connected to the outer ring dust suction cover or the air box. The air box is connected to the air purification equipment through a dust conveying pipeline. Multiple air inlets are provided at the bottom of the dust removal chamber, and the air inlets are connected to the external air through an air supply channel. When in use, the transport vehicle needs to be parked inside the dust removal chamber, with the carriage of the transport vehicle facing the feeding port. The rolling doors on both the front and rear sides of the dust removal chamber are closed, so that the dust removal chamber forms a relatively enclosed space. Then, the feeding equipment and the adsorption type dust removal equipment are started simultaneously. When the asphalt mixture enters the carriage through the feeding port, the discharged dust and odor gas are instantly adsorbed by the outer ring dust suction cover and the inner ring dust suction cover arranged around the feeding port.

[0019] The working process of the adsorption type dust removal equipment is that the negative pressure generated by the air purification equipment sequentially passes through the dust conveying pipeline, the air box, the adsorption holes of the outer ring dust suction hood, and the adsorption holes of the inner ring dust suction hood to adsorb the flying dust and odor gas. Then, the adsorbed flying dust and odor gas are transported to the air purification equipment through the inner ring dust suction hood, the outer ring dust suction hood, the air box, and the dust conveying pipeline for purification treatment. A plurality of air inlets are arranged at the bottom of the dust removal chamber, and the air inlets are communicated with the external air through the air supply channels. The purpose is to supply air to the dust removal chamber while the adsorption holes of the outer ring dust suction hood and the inner ring dust suction hood adsorb the flying dust and odor gas, so as to ensure that the flying dust and odor gas are adsorbed together with the air. As the carrier for transporting the flying dust and odor gas, air is essential during the operation of this adsorption type dust removal equipment. This adsorption type dust removal equipment for asphalt mixing plants replaces the traditional bucket-shaped dust-proof hood with a porous honeycomb-shaped adsorption hood composed of an outer ring dust suction hood and an inner ring dust suction hood arranged around the feeding port, and has the advantages of a large adsorption area, a closer distance to the dust generation position, and a greater adsorption force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is an axonometric structural schematic diagram of the present utility model in the using state.

[0021] Figure 2 FIG. is an overall axonometric structural schematic diagram of the present utility model.

[0022] Figure 3 FIG. is a partial structural schematic diagram of the outer ring dust suction hood in the present utility model.

[0023] Figure 4 FIG. is a partial structural schematic diagram of the inner ring dust suction hood in the present utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1, air inlet; 2, air supply channel; 3, dust removal chamber; 4, rolling shutter door; 5, dust conveying pipeline; 6, feeding port; 7, honeycomb-shaped dust suction hood assembly; 71, outer ring dust suction hood; 72, inner ring dust suction hood; 73, air box; 711, first outer cover; 712, first bottom cover; 713, first inner cover; 714, first upper cover; 721, second side cover; 722, second bottom cover; 723, third side cover; 724, second upper cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further describes the present utility model with reference to the drawings:

[0027] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, it includes a dust removal chamber 3, a honeycomb suction hood assembly 7, a dust conveying pipeline 5, an air purification device, a feeding port 6, an air inlet 1, and a air supply channel 2. Rolling doors 4 are installed at the front and rear ends of the dust removal chamber 3. A honeycomb suction hood assembly 7 is provided at the inner top of the dust removal chamber 3. The outside of the honeycomb suction hood assembly 7 is connected to the air purification device through the dust conveying pipeline 5. The honeycomb suction hood assembly 7 is arranged around the feeding port 6. Five air inlets 1 are provided at the bottom of the dust removal chamber 3, and the air inlets 1 are connected to the external air through the air supply channel 2;

[0028] The honeycomb suction hood assembly 7 consists of an outer ring suction hood 71, an inner ring suction hood 72, and an air box 73; The outer ring suction hood 71 is arranged in an upward-looking "mouth" shape. The outer ring suction hood 71 consists of a first bottom cover 712, a first outer side cover 711, a first inner side cover 713, and a first upper cover 714 to form a pipeline-type dust removal path. The two sides of the first bottom cover 712 are fixedly connected to the lower ends of the first outer side cover 711 and the first inner side cover 713 respectively. The upper ends of the first outer side cover 711 and the first inner side cover 713 are fixedly connected to both sides of the first upper cover 714. The first inner side cover 713 in the outer ring suction hood 71 is arranged in an inclined manner, and its purpose is to increase the adsorption area; Multiple rectangular adsorption holes are arranged on the first bottom cover 712, the first outer side cover 711, and the first inner side cover 713 in the outer ring suction hood 71. The purpose is multiple horizontal and vertical adsorption holes. The adsorption holes are close to the dust generation position. With more adsorption holes and a larger adsorption area at the same time, a good adsorption effect is ensured; One side of the outer ring suction hood 71 is connected to the air box 73;

[0029] The inner ring suction hood 72 is arranged inside the "mouth"-shaped outer ring suction hood 71. The inner ring suction hood 72 is arranged in a two-way "one" shape, which is suitable for an asphalt mixing plant with six small feeding ports evenly distributed in this embodiment; The inner ring suction hood 72 consists of a second bottom cover 722, a second side cover 721, a third side cover 723, and a second upper cover 724 to form a pipeline-type dust removal path. The two sides of the second bottom cover 722 are fixedly connected to the lower ends of the second side cover 721 and the third side cover 723 respectively. The upper ends of the second side cover 721 and the third side cover 723 are fixedly connected to the second upper cover 724. The second side cover 721 and the third side cover 723 in the inner ring suction hood 72 are both arranged in an inclined manner, and its purpose is to increase the adsorption area; Multiple rectangular adsorption holes are arranged on the second bottom cover 722, the second side cover, and the third side cover. The purpose is multiple horizontal and vertical adsorption holes. The adsorption holes are close to the dust generation position. With more adsorption holes and a larger adsorption area at the same time, a good adsorption effect is ensured; The inner ring suction hood 72 can also be arranged in a "mouth" shape according to the layout of the feeding port 6, which is suitable for an asphalt mixing plant with one large feeding port; Whether the inner ring suction hood is arranged in a "mouth" shape or in a multi-way "one" shape, it can achieve the purpose of surrounding the feeding port with the suction hood and increasing the adsorption points.

[0030] One end of the inner ring dust suction hood 72 is communicated with the outer ring dust suction hood 71 or the air box 73; the air box 73 is connected to the air purification equipment through the dust conveying pipeline 5.

[0031] A plurality of circular adsorption holes can also be evenly arranged in the first bottom cover 712, the first outer cover 711, and the first inner cover 13 in the outer ring dust suction hood 71; a plurality of circular adsorption holes can also be evenly arranged in the second bottom cover 722, the second side cover 721, and the third side cover 723 in the inner ring dust suction hood 72.

[0032] The adsorption type dust removal equipment for this asphalt mixing plant replaces the traditional bucket-shaped dust-proof hood with a porous honeycomb dust suction hood assembly 7 composed of an outer ring dust suction hood 71, an inner ring dust suction hood 72, and an air box 73. When in use, the transport vehicle needs to be parked in the dust removal chamber 3, with the carriage of the transport vehicle facing the feeding port 6. The rolling doors 4 on the front and rear sides of the dust removal chamber 3 are closed, so that the dust removal chamber 3 forms a relatively enclosed space. Then, the feeding equipment and the adsorption type dust removal equipment are started simultaneously. When the asphalt mixture enters the carriage through the feeding port 6, the discharged dust and odor gas are instantly adsorbed by the outer ring dust suction hood 71 and the inner ring dust suction hood 72 arranged around the feeding port 6.

[0033] The working process of the adsorption type dust removal equipment is that the negative pressure generated by the air purification equipment sequentially passes through the dust conveying pipeline 5, the air box 73, the adsorption holes of the outer ring dust suction hood, and the adsorption holes of the inner ring dust suction hood to adsorb the dust and odor gas, and then the adsorbed dust and odor gas are transported to the air purification equipment through the inner ring dust suction hood 72, the outer ring dust suction hood 71, the air box 73, and the dust conveying pipeline 5 for purification treatment. A plurality of air inlets 1 are provided at the bottom of the dust removal chamber 3, and the air inlets 1 are communicated with the external air through the air supply channel 2. The purpose is to supply air to the dust removal chamber 3 while the adsorption holes of the outer ring dust suction hood and the adsorption holes of the inner ring dust suction hood adsorb the dust and odor gas, so as to ensure that the dust and odor gas are adsorbed together with the air. Air, as the carrier for transporting the dust and odor gas, is essential during the operation of this adsorption type dust removal equipment. The adsorption type dust removal equipment for this asphalt mixing plant replaces the traditional bucket-shaped dust-proof hood with a porous honeycomb adsorption hood composed of an outer ring dust suction hood 71 and an inner ring dust suction hood 72 arranged around the feeding port 6, and has the advantages of a large adsorption area, a closer distance to the dust generation position, and a greater adsorption force.

[0034] This embodiment is only an illustration of the concept and implementation of the present invention, and does not limit it. Under the concept of the present invention, the technical solutions without substantial transformation.

Claims

1. An adsorption dust removal device for an asphalt mixing plant, characterized in that: It includes a dust removal chamber, a honeycomb dust hood assembly, an air purification device, a feed opening, an air inlet, and an air supply channel. The top of the dust removal chamber is provided with a honeycomb dust hood assembly, the outer side of the honeycomb dust hood assembly is connected to the air purification device through a dust conveying pipeline, the honeycomb dust hood assembly is arranged around the feed opening, and a plurality of air inlets are provided at the bottom of the dust removal chamber, and the air inlets are connected to the external air through the air supply channel; The honeycomb dust hood assembly consists of an outer ring dust hood, an inner ring dust hood, and a bellows; the outer ring dust hood is arranged in a U-shaped shape when viewed from above, and the outer ring dust hood is composed of a first bottom cover, a first outer cover, a first inner cover, and a first upper cover to form a duct-type dust removal path, the first bottom cover is fixedly connected on both sides to the lower end of the first outer cover and the lower end of the first inner cover, the first outer cover upper end and the first inner cover upper end are fixedly connected to both sides of the first upper cover, and one side of the outer ring dust hood is connected to the bellows; the inner ring dust hood is arranged in the U-shaped outer ring dust hood, and the inner ring dust hood is composed of a second bottom cover, a second side cover, a third side cover, and a second upper cover to form a duct-type dust removal path, the second bottom cover is fixedly connected on both sides to the lower end of the second side cover and the lower end of the third side cover, the second side cover upper end and the third side cover upper end are fixedly connected to the second upper cover, and one end of the inner ring dust hood is connected to the outer ring dust hood or the bellows; the bellows is connected to the air purification device through a dust conveying pipeline.

2. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The first inner cover in the outer ring dust collection cover is arranged in an inclined manner.

3. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The first bottom cover, the first outer cover and the first inner cover in the outer ring dust collection cover are all arranged with a plurality of rectangular adsorption holes.

4. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The second side cover and the third side cover in the inner ring dust collection cover are both arranged in an inclined manner.

5. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The second bottom cover, the second side cover and the third side cover in the inner circle dust collection cover are all arranged with a plurality of rectangular adsorption holes.

6. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The inner ring dust collecting cover is arranged in a square shape.

7. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The inner ring dust collection hood is arranged in a multi-channel straight line shape.

8. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The first bottom cover, the first outer cover and the first inner cover in the outer ring dust collection cover are all arranged with a plurality of circular adsorption holes.

9. The adsorption dust removal equipment for asphalt mixing plant according to claim 1, characterized in that: The second bottom cover, the second side cover and the third side cover in the inner ring dust collection cover are all arranged with a plurality of circular adsorption holes.

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