Environment-friendly dust removal device for asphalt concrete production

Abstract

The utility model discloses an environmental protection dust collector for asphalt concrete production relates to asphalt concrete production technical field, and the bottom of the smoke suction mechanism is connected with dust removal mechanism through the flange, one side of dust removal mechanism is connected with anti -blocking mechanism through the flange, dust removal mechanism is provided with multiple groups, and the bottom of the dust removal mechanism of the lowermost end is connected with heat recovery mechanism through the flange, and the heat recovery mechanism includes recovery cavity, and the inside fixed connection of recovery cavity has the circulating pipe of copper. The utility model discloses a heat recovery mechanism, when filtering the smoke and dust generated during the asphalt concrete production, can inject cold water through the water inlet, makes the smoke and dust that the cold water is filtered after and carries a large amount of heat indirect contact between the circulating pipe, makes high temperature smoke and dust heat the cold water, recycles and reutilizes the heat in the smoke and dust, and the harvested hot water can be used for the preheating of asphalt concrete raw material or the use of worker's quarters, reduces the waste of energy, makes it more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to bitumen concrete production technical field, concretely relates to a kind of environment-friendly dust removal device for bitumen concrete production. BACKGROUND

[0002] The reasons for the appearance of smoke and dust in the production of bitumen concrete are as follows: raw material heating: when heating bitumen and aggregates, a large amount of hot gas and smoke and dust will be generated. Especially, bitumen will volatilize at high temperature, releasing harmful gases and smoke and dust particles. For example, when petroleum pitch is heated to a certain temperature, the light components in it volatilize, forming visible smoke and dust. Mixing process: the mixing of bitumen and aggregates will further release the already volatilized substances into the air, and the mechanical action of stirring may also raise fine dust. For example, the rapidly rotating stirring blades will drive the surrounding air to flow, causing the suspension of tiny particles in the air to form smoke and dust. Material conveying: due to the drop, friction, etc. during the conveying of raw materials, dust will be generated. For example, when aggregates fall from a high place to a low place on the conveying belt, dust will be raised. Incomplete combustion: if the fuel used for heating is not fully combusted, black smoke and incompletely combusted particles will be generated, for which a dust removal device is needed to filter the generated smoke and dust.

[0003] Currently, in the production of bitumen concrete, raw materials need to be heated during production, and the generated smoke and dust contain a large amount of heat. The existing dust removal device only has filtering function when filtering the smoke and dust generated during the production of bitumen concrete, and cannot recycle the large amount of heat in the smoke and dust, causing energy waste. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of environment-friendly dust removal device for bitumen concrete production to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] The utility model discloses an asphalt concrete production is with environmental protection dust collector, including smoke suction mechanism, the bottom of smoke suction mechanism is connected with dust removal mechanism through the flange, one side of dust removal mechanism is connected with prevent blocking mechanism through the flange, dust removal mechanism is provided with multiple groups, and the bottom of the lowest dust removal mechanism is connected with heat recovery mechanism through the flange, heat recovery mechanism includes recovery cavity, the inside fixed connection of recovery cavity has the circulating pipe of copper, the inside fixed connection of recovery cavity has the first partition board of surface opening through -hole, the bottom of recovery cavity inner chamber is fixedly connected with the second partition board of surface opening through -hole, the first partition board is separated with second partition board and is communicated with each other to multiple circulating pipes, the surface fixed connection of circulating pipe has the baffle of surface opening water flow hole, the bottom of recovery cavity is provided with the air pipe, the upper end of recovery cavity inner chamber one side is provided with the water inlet pipe, and the lower end of recovery cavity inner chamber other side is provided with the water outlet pipe.

[0007] The further improvement of the utility model technical scheme lies in that: the smoke suction mechanism includes a smoke suction cavity.

[0008] The further improvement of the utility model technical scheme lies in that: a smoke inlet cover is flange-connected to the top of the smoke suction cavity, and a smoke inlet pipe is arranged on the top of the smoke inlet cover and communicated with the top of the inner cavity of the asphalt concrete mixer host.

[0009] The further improvement of the utility model technical scheme lies in that: the dust removal mechanism includes a filter cavity, an inclined filter plate is arranged in the filter cavity, and a blockage prevention pipe is arranged on one side of the filter cavity inner cavity and below the inclined filter plate.

[0010] The further improvement of the utility model technical scheme lies in that: a dust discharge port is arranged on one side of the filter cavity inner cavity and at the lowest position of the inclined filter plate, a dust collection box is flange-connected to one end of the dust discharge port, and the bottom of the lowest filter cavity is flange-connected to the top of the recovery cavity.

[0011] The further improvement of the utility model technical scheme lies in that: the blockage prevention mechanism includes a pulse air jet system, and an air jet main pipe is arranged on the top of the pulse air jet system.

[0012] The further improvement of the utility model technical scheme lies in that: an air jet branch pipe is arranged on the surface of one end of the air jet main pipe, an electromagnetic valve is arranged in the air jet branch pipe, and one end of the air jet branch pipe is flange-connected to one end of the blockage prevention pipe.

[0013] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] The utility model provides an environmental protection dust collector for asphalt concrete production, through heat recovery mechanism, when the smoke and dust produced in asphalt concrete production is filtered, can inject cold water through the water inlet, makes the smoke and dust that is filtered after and carries a large amount of heat in the circulating pipe indirect contact with cold water, makes high temperature smoke and dust heat the cold water, recycles and reutilizes the heat in the smoke and dust, the harvested hot water can supply asphalt concrete raw material preheating use or worker's quarters uses, reduces the waste of energy, makes it more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic drawing of the utility model;

[0016] Figure 2 It is the back structure schematic drawing of the utility model;

[0017] Figure 3 It is the smoke suction mechanism structure schematic drawing of the utility model;

[0018] Figure 4 It is the dust removal mechanism structure schematic drawing of the utility model;

[0019] Figure 5 It is the heat recovery mechanism structure schematic drawing of the utility model;

[0020] Figure 6 It is the heat recovery mechanism front view cross section structure schematic drawing of the utility model;

[0021] Figure 7 It is the heat recovery mechanism side cross section structure schematic drawing of the utility model.

[0022] In the drawing: 1, smoke suction mechanism, 11, smoke suction cavity, 12, fan, 13, smoke inlet cover, 14, smoke inlet pipe, 2, dust removal mechanism, 21, filter cavity, 22, inclined filter plate, 23, anti-blocking pipe, 24, dust outlet, 25, dust collection box, 3, anti-blocking mechanism, 31, pulse jet system, 32, jet main pipe, 33, jet branch pipe, 34, electromagnetic valve, 4, heat recovery mechanism, 41, recovery cavity, 42, circulating pipe, 43, first partition plate, 44, second partition plate, 45, partition, 46, air outlet pipe, 47, water inlet pipe, 48, water outlet pipe. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in connection with example: Example

[0024] For example, Figures 1-7As shown, the utility model provides a kind of environmental protection dust removal device for asphalt concrete production, including smoking mechanism 1, the bottom of smoking mechanism 1 is connected with dust removal mechanism 2 by flange, the side of dust removal mechanism 2 is connected with anti-blocking mechanism 3 by flange, dust removal mechanism 2 is provided with multiple groups, the bottom of the lowermost dust removal mechanism 2 is connected with heat recovery mechanism 4 by flange, heat recovery mechanism 4 includes recovery cavity 41, the inside fixed connection of recovery cavity 41 has copper circulating pipe 42, the inside fixed connection of recovery cavity 41 has the first partition plate 43 of the surface of being equipped with through-hole, the bottom of recovery cavity 41 inner chamber is fixedly connected with the second partition plate 44 of the surface of being equipped with through-hole, first partition plate 43 and second partition plate 44 divide multiple circulating pipes 42 into three parts, and mutually communicate, the surface fixed connection of circulating pipe 42 has the baffle 45 of the surface of being equipped with water flow hole, the bottom of recovery cavity 41 is provided with air pipe 46, the upper end of one side of recovery cavity 41 inner chamber is provided with water inlet pipe 47, the lower end of the other side of recovery cavity 41 inner chamber is provided with water outlet pipe 48.

[0025] In the embodiment, after the filtered flue gas enters circulating pipe 42, under the flow guide of first partition plate 43 and second partition plate 44, the filtered flue gas reciprocates in circulating pipe 42, prolongs the retention time of flue gas in recovery cavity 41, cold water is injected into recovery cavity 41 through water inlet pipe 47, so that cold water is indirectly contacted with flue gas, the heat in flue gas is gradually transferred to cold water, cold water is heated, and heated hot water is discharged along water outlet pipe 48, after the heat in flue gas is recovered, flue gas is discharged, and the waste of energy can be reduced. Embodiment

[0026] As Figures 1-7 As shown, on the basis of embodiment 1, the utility model provides a kind of technical scheme: preferably, smoking mechanism 1 includes smoking cavity 11, the inside of smoking cavity 11 is provided with fan 12, the top flange of smoking cavity 11 is connected with smoke inlet cover 13, the top of smoke inlet cover 13 is provided with smoke inlet pipe 14 communicated with the top of asphalt concrete mixer host inner chamber, dust removal mechanism 2 includes filter cavity 21, the inside of filter cavity 21 is provided with inclined filter plate 22, the side of filter cavity 21 inner chamber and below inclined filter plate 22 are provided with anti-blocking pipe 23, the side of filter cavity 21 inner chamber and the side of the lowest place of inclined filter plate 22 are provided with dust outlet 24, the end flange of dust outlet 24 is connected with dust collection tank 25, the bottom of the lowermost filter cavity 21 and the top flange of recovery cavity 41 are connected.

[0027] In the embodiment, the smoke gas generated in the asphalt concrete mixer host is made to enter the filter cavity 21 along the smoke inlet pipe 14 by starting the fan 12, and the dust in the smoke dust is removed under the action of the inclined filter plate 22, and the number of the dust removal mechanism 2 can be flexibly increased or reduced according to the dust content in the smoke dust, the filtered dust falls along the inclined filter plate 22 under the action of its own gravity, enters the dust collecting box 25 from the dust outlet 24, and the filtered dust is collected. Embodiment

[0028] As Figures 1-7 shown, on the basis of the embodiment 1, the utility model provides a technical scheme: preferably, the anti-blocking mechanism 3 includes a pulse air jet system 31, the top of the pulse air jet system 31 is provided with a jet main pipe 32, the surface of one end of the jet main pipe 32 is provided with a jet branch pipe 33, the inside of the jet branch pipe 33 is provided with a solenoid valve 34, and one end of the jet branch pipe 33 is connected with the flange of one end of the anti-blocking pipe 23.

[0029] In the embodiment, when the dust on the surface of the inclined filter plate 22 is accumulated and blocked due to electrostatic force, the corresponding position solenoid valve 34 is opened according to the blocked position, high-pressure gas is sprayed out through the pulse air jet system 31, the high-pressure gas enters the filter cavity 21 along the jet main pipe 32 and the jet branch pipe 33, blows to the inclined filter plate 22 from below the inclined filter plate 22, the high-speed airflow blows up the dust accumulated on the surface of the inclined filter plate 22, and the inclined filter plate 22 is restored to unobstructed.

[0030] The working principle of the environment-friendly dust removal device for asphalt concrete production will be described below.

[0031] As Figures 1-7As shown, at runtime, the fan 12 is started to make the smoke generated in the asphalt concrete mixer host enter the filter cavity 21 along the smoke inlet pipe 14, under the action of the inclined filter plate 22, the dust in the smoke dust is removed, at the same time, the number of dust removal mechanisms 2 can be flexibly increased or reduced according to the dust content in the smoke dust, the filtered dust falls along the inclined filter plate 22 under the action of its own gravity, enters the dust collecting box 25 from the dust outlet 24, and collects the filtered dust, when the dust on the surface of the inclined filter plate 22 is accumulated and blocked due to electrostatic force, according to the position of the blockage, the corresponding position of the electromagnetic valve 34 is opened, high-pressure gas is sprayed out through the pulse air injection system 31, the high-pressure gas enters the filter cavity 21 along the air injection main pipe 32 and the air injection branch pipe 33, blows to the inclined filter plate 22 from below the inclined filter plate 22, makes the high-speed airflow blow up the dust accumulated on the surface of the inclined filter plate 22, restores the smoothness of the inclined filter plate 22, and the filtered smoke enters the circulating pipe 42, under the flow guide of the first partition plate 43 and the second partition plate 44, makes the filtered smoke reciprocate in the circulating pipe 42, prolongs the residence time of the smoke in the recovery cavity 41, injects cold water into the recovery cavity 41 through the water inlet pipe 47, makes the cold water indirectly contact with the smoke, gradually transfers the heat in the smoke to the cold water, heats the cold water, and the heated hot water is discharged along the water outlet pipe 48, after the heat in the smoke is recovered, the exhaust smoke can reduce the waste of energy.

[0032] The above has made a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. An environmentally friendly dust removal device for asphalt concrete production, comprising a smoke extraction mechanism (1), characterized in that: The bottom of the smoking mechanism (1) is connected to a dust removal mechanism (2) via a flange. One side of the dust removal mechanism (2) is connected to an anti-clogging mechanism (3) via a flange. The dust removal mechanism (2) has multiple sets. The bottom of the lowest dust removal mechanism (2) is connected to a heat recovery mechanism (4) via a flange. The heat recovery mechanism (4) includes a recovery chamber (41). A copper circulation pipe (42) is fixedly connected inside the recovery chamber (41). A first partition plate (43) with through holes on its surface is fixedly connected inside the recovery chamber (41). The bottom of the inner cavity of the cavity (41) is fixedly connected to a second partition plate (44) with through holes on its surface. The first partition plate (43) and the second partition plate (44) divide the multiple circulation pipes (42) into three parts and are interconnected. The surface of the circulation pipe (42) is fixedly connected to a partition plate (45) with water flow holes on its surface. The bottom of the recovery cavity (41) is provided with an air outlet pipe (46). The upper end of one side of the inner cavity of the recovery cavity (41) is provided with a water inlet pipe (47). The lower end of the other side of the inner cavity of the recovery cavity (41) is provided with a water outlet pipe (48).

2. The environmentally friendly dust removal device for asphalt concrete production according to claim 1, characterized in that: The smoking mechanism (1) includes a smoking chamber (11), and a fan (12) is installed inside the smoking chamber (11).

3. The environmentally friendly dust removal device for asphalt concrete production according to claim 2, characterized in that: The top flange of the smoking chamber (11) is connected to the smoke inlet hood (13), and the top of the smoke inlet hood (13) is provided with a smoke inlet pipe (14) that communicates with the top of the inner cavity of the asphalt concrete mixer.

4. The environmentally friendly dust removal device for asphalt concrete production according to claim 1, characterized in that: The dust removal mechanism (2) includes a filter chamber (21), an inclined filter plate (22) is provided inside the filter chamber (21), and an anti-clogging pipe (23) is provided on one side of the filter chamber (21) and below the inclined filter plate (22).

5. The environmentally friendly dust removal device for asphalt concrete production according to claim 4, characterized in that: A dust discharge port (24) is provided on one side of the inner cavity of the filter chamber (21) and on the side located at the lowest point of the inclined filter plate (22). A dust collection box (25) is connected to one end of the dust discharge port (24) by a flange. The bottom of the filter chamber (21) at the lowest end is connected to the top flange of the recovery chamber (41).

6. The environmentally friendly dust removal device for asphalt concrete production according to claim 1, characterized in that: The anti-blocking mechanism (3) includes a pulse jet system (31), and a jet pipe (32) is provided on the top of the pulse jet system (31).

7. The environmentally friendly dust removal device for asphalt concrete production according to claim 6, characterized in that: The surface of one end of the jet main pipe (32) is provided with a jet branch pipe (33), and a solenoid valve (34) is provided inside the jet branch pipe (33). One end of the jet branch pipe (33) is connected to the flange of one end of the anti-blocking pipe (23).

Images