Dust removal equipment for asphalt stirring

Abstract

The utility model discloses dust removal equipment for asphalt stirring, and relates to the technical field of asphalt stirring. The dust falling device comprises a dust falling box body and a dust removing fan arranged on one side of the upper end face of the dust falling box body, and further comprises an air return pipeline fixed to one end of the dust removing fan, a dust collecting cover is fixed to the other end of the air return pipeline, and the lower end of the dust collecting cover is connected with one end of a temperature increasing roller; and the dust falling bin is slidably clamped in the dust falling box body from one side of the dust falling box body, and a guide frame is arranged on the inner side of the dust falling bin. The space in the guide frame is divided into different spaces through the partition plate bodies, the principle that the volume is increased and the air speed is reduced is utilized, dust in air can be naturally settled in the center of the dust falling bin through the filter screen, and the dedusted air is finally discharged to the air from the exhaust port through the exhaust pipe in the dust falling box body. And the arranged activated carbon net can be used for further filtering the gas, so that the harm to the surrounding environment caused by peculiar smell in the gas can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt mixing, in particular to dust removal equipment for asphalt mixing. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, mostly in the form of liquid or semi-solid petroleum. It has a black surface and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. Asphalt can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt. Among them, coal tar asphalt is a by-product of coking.

[0003] Before asphalt mixing, the asphalt needs to be heated. In the process of heating, dust particles will inevitably be generated. If they are not handled in time, they will cause harm to the surrounding environment. Most of the existing ones use physical dust reduction. Although they can filter and reduce dust, the dust on the partitions and filters is inconvenient to handle and easily causes them to become blocked, which leads to poor dust removal effect of the dust reduction box. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a dust removal device for asphalt mixing, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a dust removal device for asphalt mixing, comprising a dust removal box and a dust removal fan arranged on one side of the upper end surface of the dust removal box, and also comprising:

[0007] The return air duct is fixed to one end of the dust removal fan, and a dust collecting hood is fixed to the other end of the return air duct, and the lower end of the dust collecting hood is connected to one end of the temperature raising drum;

[0008] The guide duct is fixed on the side of the dust removal fan away from the return air duct, and one end of the guide duct is guided toward the inner side of the dust reduction box;

[0009] The dust reduction bin is slidably connected to the inside of the dust reduction box body from one side of the dust reduction box body, a guide frame is arranged on the inner side of the dust reduction bin, and an arc-shaped groove is arranged on the upper end surface of the guide frame;

[0010] The reset mechanism is arranged on the left and right sides of the guide frame and is located inside the dust reduction bin, and is used to reset the guide frame;

[0011] The exhaust port is opened on the side of the dust reduction box away from the dust removal fan.

[0012] Furthermore, the dust reduction box is provided with an air inlet duct, and the air inlet duct and the guide duct maintain the same vertical center line.

[0013] Furthermore, the guide frame includes a partition body and a filter screen, the partition body is evenly fixed on the inner side of the guide frame, and a slot is opened in the center of the partition body, the filter screen is arranged on the inner side of the partition body, and the cross section of the filter screen is an "S" shaped structure.

[0014] Furthermore, the reset mechanism includes a connecting plate, a reset spring and a limiting slide. The connecting plate is symmetrically fixed on the left and right sides of the guide frame, and the connecting plate is slidably connected to the inside of the dust reduction bin. The reset spring is arranged at the lower end of the connecting plate, and the other end of the reset spring is fixed to the dust reduction bin. The limiting slide is fixed to the upper end surface of the guide frame and is slidably connected to the inside of the dust reduction box.

[0015] Furthermore, a connecting shaft is laterally arranged inside the dust reduction box, a fan blade body is fixed at one end of the connecting shaft, and the fan blade body is arranged inside the air inlet duct. Eccentric wheels are evenly arranged on the outer surface of the connecting shaft, and the lower end of the eccentric wheel fits tightly with the arc-shaped groove on the upper end face of the guide frame.

[0016] Furthermore, an exhaust pipe is provided on a side of the dust reduction box away from the air inlet, and the upper end of the exhaust pipe is connected to the exhaust port, and an activated carbon net is provided on the inner side of the exhaust pipe.

[0017] The utility model has the following beneficial effects:

[0018] The utility model divides the space in the guide frame into different spaces by arranging a partition body, and utilizes the principle that the volume increases and the wind speed decreases. The arranged filter net can make the dust in the air naturally settle in the center of the dust reduction bin, and the dust-removed air is finally discharged into the air from the exhaust port through the exhaust pipe in the dust reduction box body, and the arranged activated carbon net can further filter the gas, which can avoid the occurrence of odor in the gas and harm to the surrounding environment. At the same time, the gas entering the air inlet duct can blow the fan blade body, and then cooperate with the eccentric wheel and the reset mechanism to make the guide frame slide up and down, so as to be able to vibrate the dust on the filter net in the partition body downward, and collect it through the dust reduction bin for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a top view of the dust suppression box of the utility model;

[0021] Figure 2 This is a right side view of the dust suppression box of the utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the dust suppression box of the utility model;

[0023] Figure 4 It is a top view schematic diagram of the connecting shaft of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Dust reduction box; 2. Dust removal fan; 3. Return air duct; 4. Dust hood; 5. Guide duct; 6. Air inlet duct; 7. Dust reduction bin; 8. Guide frame; 9. Partition body; 10. Filter; 11. Connecting plate; 12. Reset spring; 13. Connecting shaft; 14. Fan blade body; 15. Eccentric wheel; 16. Limiting slide plate; 17. Exhaust pipe; 18. Activated carbon net; 19. Exhaust port. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-3 As shown, the utility model is a dust removal device for asphalt mixing, comprising a dust removal box 1 and a dust removal fan 2 arranged on one side of the upper end surface of the dust removal box 1, and also comprising:

[0028] The return air duct 3 is fixed to one end of the dust removal fan 2, and a dust collecting hood 4 is fixed to the other end of the return air duct 3, and the lower end of the dust collecting hood 4 is connected to one end of the temperature raising drum. The dust generated by the asphalt processing and stirring can be guided by the dust removal fan 2, and then guided into the dust reduction box 1 by the return air duct 3 for subsequent processing;

[0029] The guide duct 5 is fixed on a side of the dust removal fan 2 away from the return air duct 3, and one end of the guide duct 5 is guided toward the inside of the dust reduction box 1;

[0030] The dust reduction bin 7 is slidably connected to the inside of the dust reduction box 1 from one side of the dust reduction box 1. A guide frame 8 is provided on the inner side of the dust reduction bin 7, and an arc-shaped groove is provided on the upper end surface of the guide frame 8. The dust reduction bin 7 can be disassembled to facilitate the subsequent treatment of the dust in the dust reduction bin 7. At the same time, the guide frame 8 can filter the dust in the gas.

[0031] The reset mechanism is arranged on the left and right sides of the guide frame 8 and is located inside the dust reduction bin 7, and is used to reset the guide frame 8;

[0032] The exhaust port 19 is provided on a side of the dust reduction box 1 away from the dust removal fan 2 .

[0033] The dust reduction box 1 is provided with an air inlet duct 6, and the air inlet duct 6 and the guide duct 5 maintain the same vertical center line, and are connected to the guide duct 5 through the set air inlet duct 6, so as to facilitate the subsequent gas guidance. A connecting shaft 13 is horizontally arranged inside the dust reduction box 1, and a fan blade body 14 is fixed at one end of the connecting shaft 13, and the fan blade body 14 is arranged inside the air inlet duct 6. An eccentric wheel 15 is evenly arranged on the outer surface of the connecting shaft 13, and the lower end of the eccentric wheel 15 is tightly fitted with the arc-shaped groove on the upper end surface of the guide frame 8. The fan blade body 14 at one end of the connecting shaft 13 can be located in the air inlet duct 6. When the dust removal fan 2 guides the gas into the air inlet duct 6, it can drive the fan blade body 14 to rotate, and then the guide frame 8 can be adjusted up and down through the eccentric wheel 15 on the outside of the connecting shaft 13, so that the dust on the filter screen 10 in the partition body 9 can be vibrated downward and collected through the dust reduction bin 7 for subsequent processing.

[0034] The reset mechanism includes a connecting plate 11, a reset spring 12 and a limiting slide plate 16. The connecting plate 11 is symmetrically fixed on the left and right sides of the guide frame 8, and the connecting plate 11 is slidably connected to the inside of the dust reduction bin 7. The reset spring 12 is arranged at the lower end of the connecting plate 11, and the other end of the reset spring 12 is fixed to the dust reduction bin 7. The limiting slide plate 16 is fixed to the upper end surface of the guide frame 8 and is slidably connected to the inside of the dust reduction box body 1. The position of the guide frame 8 can be limited by the set connecting plate 11, and the set reset spring 12 can reset the connecting plate 11, so that the guide frame 8 can be adjusted up and down, and then the connecting shaft 13, the fan blade body 14 and the eccentric wheel 15 cooperate to make the guide frame 8 oscillate;

[0035] At the same time, if it is necessary to install the dust reduction bin 7, the guide frame 8 can be pulled downward, and the dust reduction bin 7 can be pushed to slide and engage in the dust reduction box body 1. When it reaches the specified position, the guide frame 8 is released, and the multiple sets of reset springs 12 can push the connecting plate 11 to reset the guide frame 8, and at the same time, the limiting slide plate 16 at the upper end of the guide frame 8 can be slidably engaged in the dust reduction box body 1, so as to limit the position of the guide frame 8. At the same time, the upper end surface of the guide frame 8 is provided with an arc-shaped groove that can contact the bottom of the eccentric wheel 15. When the connecting shaft 13 rotates, the guide frame 8 can be adjusted up and down;

[0036] The guide frame 8 includes a partition body 9 and a filter screen 10. The partition body 9 is evenly fixed on the inner side of the guide frame 8, and a card slot is opened in the center of the partition body 9. The filter screen 10 is arranged on the inner side of the partition body 9, and the cross section of the filter screen 10 is an "S"-shaped structure. The space in the guide frame 8 is divided into different spaces by setting the partition body 9. The principle of increasing volume and reducing wind speed is used, and the filter screen 10 can make the dust in the air naturally settle in the center of the dust reduction bin 7. It can be disassembled to facilitate the subsequent replacement and maintenance of the dust reduction bin 7. An exhaust pipe 17 is opened on the side of the dust reduction box 1 away from the air inlet 6, and the upper end of the exhaust pipe 17 is connected to the exhaust port 19. An activated carbon net 18 is arranged on the inner side of the exhaust pipe 17. The dust-removed air is then discharged into the air from the exhaust port 19 through the exhaust pipe 17 in the dust reduction box 1. The activated carbon net 18 arranged can further filter the gas to avoid the appearance of odor in the gas and harm to the surrounding environment.

[0037] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A dust removal device for asphalt mixing, comprising a dust removal box (1) and a dust removal fan (2) arranged on one side of the upper end surface of the dust removal box (1), characterized in that: Also includes: The return air duct (3) is fixed to one end of the dust removal fan (2), and a dust collecting hood (4) is fixed to the other end of the return air duct (3), and the lower end of the dust collecting hood (4) is connected to one end of the temperature raising drum; The guide duct (5) is fixed on a side of the dust removal fan (2) away from the return air duct (3), and one end of the guide duct (5) is guided toward the inside of the dust reduction box (1); The dust reduction bin (7) is slidably connected to the inside of the dust reduction box (1) from one side of the dust reduction box (1), a guide frame (8) is arranged on the inner side of the dust reduction bin (7), and an arc-shaped groove is arranged on the upper end surface of the guide frame (8); A reset mechanism is arranged on the left and right sides of the guide frame (8) and is located inside the dust reduction bin (7) and is used to reset the guide frame (8); The exhaust port (19) is arranged on a side of the dust reduction box (1) away from the dust removal fan (2).

2. The dust removal equipment for asphalt mixing according to claim 1, characterized in that: The dust reduction box (1) is provided with an air inlet duct (6), and the air inlet duct (6) and the guide duct (5) maintain the same vertical center line.

3. The dust removal equipment for asphalt mixing according to claim 1, characterized in that: The guide frame (8) comprises a partition body (9) and a filter screen (10); the partition body (9) is evenly fixed on the inner side of the guide frame (8), and a slot is provided in the center of the partition body (9); the filter screen (10) is arranged on the inner side of the partition body (9), and the cross section of the filter screen (10) is an "S"-shaped structure.

4. The dust removal equipment for asphalt mixing according to claim 2, characterized in that: The reset mechanism comprises a connecting plate (11), a reset spring (12) and a limiting slide plate (16); the connecting plate (11) is symmetrically fixed on the left and right sides of the guide frame (8), and the connecting plate (11) is slidably engaged in the interior of the dust reduction bin (7); the reset spring (12) is arranged at the lower end of the connecting plate (11), and the other end of the reset spring (12) is fixed to the dust reduction bin (7); the limiting slide plate (16) is fixed to the upper end surface of the guide frame (8), and is slidably engaged in the interior of the dust reduction box (1).

5. The dust removal equipment for asphalt mixing according to claim 4, characterized in that: A connecting shaft (13) is transversely arranged inside the dust reduction box (1), a fan blade body (14) is fixed to one end of the connecting shaft (13), and the fan blade body (14) is arranged inside the air inlet duct (6), and an eccentric wheel (15) is evenly arranged on the outer surface of the connecting shaft (13), and the lower end of the eccentric wheel (15) is tightly fitted with the arc-shaped groove on the upper end surface of the guide frame (8).

6. The dust removal equipment for asphalt mixing according to claim 2, characterized in that: An exhaust pipe (17) is provided on a side of the dust reduction box (1) away from the air inlet duct (6), and the upper end of the exhaust pipe (17) is connected to an exhaust port (19). An activated carbon net (18) is provided on the inner side of the exhaust pipe (17).

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