Flue gas treatment and purification equipment for asphalt mixing production

Abstract

The utility model belongs to the technical field of asphalt production, and particularly relates to asphalt mixing production flue gas treatment and purification equipment which comprises a dust filtering box, the left end of the dust filtering box is communicated with a first pipeline, the end, away from the dust filtering box, of the first pipeline is communicated with a collecting cover, and a negative pressure fan is fixedly installed at the right end of the dust filtering box. The negative pressure end of the negative pressure fan communicates with the dust filtering box, the inner walls of the periphery of the dust filtering box are jointly and fixedly connected with a partition plate, the partition plate is arranged close to the inner bottom wall of the dust filtering box, and the partition plate divides the dust filtering box into a filtering cavity and a collecting cavity from top to bottom; the communicating positions of the first pipeline and the negative pressure end of the negative pressure fan and the dust filtering box are both located in the filtering cavity. According to the utility model, the flue gas generated in asphalt mixing production can be effectively filtered and purified, the filtering effect is ensured, and the treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bitumen production technical field especially relates to a bitumen mixing production flue gas treatment and purification equipment. BACKGROUND

[0002] The flue gas generated in the bitumen mixing production process mainly comes from the volatile organic substances in the bitumen heating process, which decompose or burn at high temperature to form harmful flue gas and waste gas. In order to reduce the harm to the environment and the operating personnel, effective flue gas treatment measures need to be taken.

[0003] At present, the effective bitumen mixing production flue gas treatment mode is mostly to use a bag dust collector. The bag dust collector can effectively remove the solid particulate matters in the flue gas. Through the bag filtering technology, the dust and other particles in the flue gas are captured and discharged into the air, so that the substances discharged into the air are controlled. However, this mode needs to be manually replaced and cleaned regularly. In the long-term filtering work, the filtering effect of the bag will continue to decrease, thereby affecting the flue gas treatment efficiency.

[0004] Therefore, we propose a bitumen mixing production flue gas treatment and purification equipment to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a bitumen mixing production flue gas treatment and purification equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A bitumen mixing production flue gas treatment and purification equipment, comprising a dust filtering box, a first pipeline is communicated with the left end of the dust filtering box, a collecting cover is communicated with the end of the first pipeline away from the dust filtering box, a negative pressure fan is fixedly installed at the right end of the dust filtering box, the negative pressure end of the negative pressure fan is communicated with the dust filtering box, a partition plate is fixedly connected on the inner wall around the dust filtering box, the partition plate is arranged close to the inner bottom wall of the dust filtering box, the dust filtering box is divided into a filtering cavity and a collecting cavity from top to bottom by the partition plate, and the communication positions of the first pipeline and the negative pressure end of the negative pressure fan with the dust filtering box are located in the filtering cavity.

[0008] Two filtering plates are arranged in parallel and spaced apart in the filtering cavity, the two filtering plates are arranged from left to right and upwardly inclined, the filtering plate is slidably attached to the inner wall of the filtering cavity, a sliding rod is transversely slidably penetrated through the four corners of the filtering plate, a fixed block is fixedly connected to the left and right ends of each sliding rod, each fixed block is fixedly connected with the inner wall of the filtering cavity, a spring is fixedly connected between the right end of the filtering plate and the corresponding fixed block on the right side, the spring is sleeved on the corresponding sliding rod, and a dropping opening is formed in the partition plate and located in front of the two filtering plates and communicated with the collecting cavity.

[0009] The upper end of the dust filtering box is provided with a rectangular movable opening at the corresponding position of the two filter plates, the upper end of the dust filtering box is fixedly connected with a driving box covering the movable opening, the upper end of each of the two filter plates is fixedly connected with a vertically arranged contact plate, the upper end of each of the two contact plates penetrates through the movable opening and extends into the driving box, two rotating rods are rotatably connected between the inner walls of the front and rear of the driving box, a cam is fixedly sleeved on each of the two rotating rods, and each of the two cams is in contact with one side of the contact plate.

[0010] Preferably, a conveying belt is arranged in the collecting cavity.

[0011] Preferably, a communication opening is arranged on the inner bottom wall of the collecting cavity and located at the right end of the conveying belt, and a dust collecting box is fixedly connected to the lower end of the dust filtering box and in communication with the communication opening.

[0012] Preferably, a cooling water tank is in communication with the output end of the negative pressure fan, a spray head is arranged in the cooling water tank, a water pump is fixedly arranged on the upper end of the cooling water tank, and the output end of the water pump is in communication with the spray head.

[0013] Preferably, a second pipeline is in communication with the right end of the cooling water tank, and an activated carbon adsorption tower is in communication with the end of the second pipeline away from the cooling water tank.

[0014] Preferably, the front end of each of the two rotating rods extends to the front of the driving box and is fixedly sleeved with a first gear, a second gear is rotatably connected to the front end of the driving box and between the two first gears, the second gear is in meshing with the two first gears at the same time, and a driving motor is fixedly arranged at the rear end of the driving box and drives one of the rotating rods to rotate.

[0015] Compared with the prior art, the device has the following advantages:

[0016] By arranging two inclined filter plates in the dust filtering box, when the flue gas enters the filtering cavity, the particulate matters in the flue gas can be effectively filtered by the two filter plates, and the particulate matters isolated by the filter plates roll down due to gravity, in the filtering process, the two filter plates can be driven to move back and forth left and right quickly by the driving motor, the cam and the contact plate, so as to achieve the vibration effect, and the filter plates in the vibration state can effectively make the particulate matters isolated on the surface of the filter plates fall off, thereby avoiding the blockage of the filter plates and ensuring the filtering effect, and the problem that the staff needs to frequently replace and clean the filter bag in the past is solved.

[0017] In summary, the device can effectively filter and purify the flue gas generated in the asphalt mixing production, ensure the filtering effect and improve the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of the asphalt mixing and production flue gas treatment and purification equipment is provided in the utility model;

[0019] Figure 2 A perspective view of the dust filter box in the asphalt mixing and production flue gas treatment and purification equipment is provided in the utility model;

[0020] Figure 3 For Figure 2 An enlarged structural schematic view of position A in the middle;

[0021] Figure 4 A perspective view of the dust filter box in the asphalt mixing and production flue gas treatment and purification equipment is provided in the utility model;

[0022] Figure 5 For Figure 4 An enlarged structural schematic view of position B in the middle.

[0023] In the figure: 1 dust filter box, 2 first pipeline, 3 collection cover, 4 negative pressure fan, 5 cooling water tank, 6 activated carbon adsorption tower, 7 second pipeline, 8 partition plate, 9 filter plate, 10 sliding rod, 11 fixed block, 12 spring, 13 blanking port, 14 drive box, 15 movable port, 16 contact plate, 17 rotating rod, 18 cam, 19 first gear, 20 second gear, 21 drive motor, 22 communication port, 23 dust collecting box, 24 conveying belt. DETAILED DESCRIPTION

[0024] 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.

[0025] With reference to Figures 1-5 A kind of asphalt mixing and production flue gas treatment and purification equipment, including dust filter box 1, the first pipeline 2 is communicated with the left end of dust filter box 1, the first pipeline 2 is communicated with the collection cover 3 at the end away from dust filter box 1, it can cover be set on asphalt mixing equipment, to collect the flue gas generated, dust filter box 1 right end is fixedly installed with negative pressure fan 4, the negative pressure end of negative pressure fan 4 is communicated with dust filter box 1, when negative pressure fan 4 works, flue gas can be effectively sucked into dust filter box 1, dust filter box 1 periphery inner wall is fixedly connected with partition plate 8, partition plate 8 is close to the bottom wall in dust filter box 1 setting, partition plate 8 divides dust filter box 1 from top to bottom into filter cavity and collection cavity, the communication position of the first pipeline 2 and the negative pressure end of negative pressure fan 4 with dust filter box 1 is all located in filter cavity, filter cavity is used for the filtration work of particulate matter in flue gas, collection cavity is used for the collection work of particulate matter.

[0026] The filter cavity is provided with two parallel and spaced filter plates 9, both of which are inclined upward from left to right, and the filter plate 9 on the right side has a larger mesh number than the filter plate 9 on the left side, so that when the flue gas enters the filter cavity, the particulate matters in the flue gas can be effectively filtered by the two filter plates 9, and the particulate matters separated by the filter plate 9 roll down due to gravity.

[0027] The filter plate 9 is in sliding fit with the inner wall of the filter cavity, and a sliding rod 10 is transversely slid through the four corners of the filter plate 9, both ends of each sliding rod 10 are fixedly connected with a fixed block 11, each fixed block 11 is fixedly connected with the inner wall of the filter cavity, and a spring 12 is fixedly connected between the right end of the filter plate 9 and the corresponding fixed block 11 on the right side, the spring 12 is sleeved on the corresponding sliding rod 10, and a drop opening 13 is formed in the partition plate 8 and in front of the two filter plates 9, which is in communication with the collecting cavity, and the filtered particulate matters can fall into the collecting cavity through the drop opening 13. The filter plate 9 can move transversely in the filter cavity under the action of the four sliding rods 10, and the spring 12 can keep the position of the filter plate 9 stable without external force.

[0028] A rectangular movable opening 15 is formed in the upper end of the dust filter box 1 and at the corresponding position of the two filter plates 9, a driving box 14 is fixedly connected to the upper end of the dust filter box 1 and covers the movable opening 15, a vertical contact plate 16 is fixedly connected to the upper end of each filter plate 9, the upper end of each contact plate 16 penetrates the movable opening 15 and extends into the driving box 14, two rotating rods 17 are rotatably connected between the front and rear inner walls of the driving box 14, a cam 18 is fixedly sleeved on each rotating rod 17, the two cams 18 are respectively in contact with one side of the two contact plates 16, the front end of each rotating rod 17 extends to the front of the driving box 14 and is fixedly sleeved with a first gear 19, a second gear 20 is rotatably connected between the front end of the driving box 14 and the two first gears 19, the second gear 20 is in meshing with the two first gears 19, and a driving motor 21 is fixedly installed at the rear end of the driving box 14 to drive one of the rotating rods 17 to rotate.

[0029] Specifically, when the driving motor 21 drives the rotation of the rotating rod 17, the two rotating rods 17 can be synchronously rotated under the meshing transmission of the two first gears 19 and the second gear 20, and then the driving motor 21 can control the two cams 18 to synchronously rotate, and in the rotating process of the cam 18, the contact plate 16 and the corresponding filter plate 9 below can be pushed to move rightwards by the contact with the contact plate 16, and after one rotation of the cam 18, the filter plate 9 can move leftwards to reset under the action of the spring 12, so as to complete one reciprocating movement, and then only the driving motor 21 is needed to drive the high-speed rotation of the two cams 18, and the two filter plates 9 can quickly reciprocate leftward and rightward, so as to achieve the vibration effect, and the filter plate 9 in the vibration state can effectively make the particles isolated on the surface of the filter plate 9 fall off, so as to avoid the blockage of the filter plate 9 and ensure the filtering effect.

[0030] The collecting cavity is internally provided with a transversely arranged conveying belt 24 which can convey from left to right.

[0031] The output end of the negative pressure fan 4 is communicated with a cooling water tank 5, the cooling water tank 5 is internally provided with a spraying head, the upper end of the cooling water tank 5 is fixedly provided with a water pump, the output end of the water pump is communicated with the spraying head, the filtered flue gas is discharged into the cooling water tank 5 by the negative pressure fan 4, and then the water pump continuously sprays water through the spraying head to wash and cool the entering flue gas, harmful substances in the flue gas are washed, and the temperature of the discharged flue gas is avoided from being too high, so that the flue gas reaches a lower emission standard.

[0032] The right end of the cooling water tank 5 is communicated with the second pipeline 7, the end of the second pipeline 7 away from the cooling water tank 5 is communicated with an activated carbon adsorption tower 6, the activated carbon adsorption tower 6 is a prior art, the flue gas after being washed and cooled can enter the activated carbon adsorption tower 6, so that harmful gases such as volatile organic compounds in the flue gas are effectively adsorbed, and then the emission standard is reached.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A bitumen mixing production flue gas treatment purification plant comprising a dust filter box (1), characterized in that, The first pipeline (2) is communicated with the left end of the dust filtering box (1), one end of the first pipeline (2) away from the dust filtering box (1) is communicated with a collecting cover (3), the right end of the dust filtering box (1) is fixedly installed with a negative pressure fan (4), the negative pressure end of the negative pressure fan (4) is communicated with the dust filtering box (1), the dust filtering box (1) is fixedly connected with a partition plate (8) on the inner wall around the dust filtering box (1), the partition plate (8) is arranged close to the inner bottom wall of the dust filtering box (1), the dust filtering box (1) is divided into a filtering cavity and a collecting cavity from top to bottom by the partition plate (8), the communication positions of the first pipeline (2) and the negative pressure end of the negative pressure fan (4) with the dust filtering box (1) are all located in the filtering cavity; Two filtering plates (9) are arranged in parallel and at intervals in the filtering cavity, the two filtering plates (9) are all arranged from left to right and upwardly inclined, the filtering plate (9) is in sliding fit with the inner wall of the filtering cavity, the four corners of the filtering plate (9) are all transversely slidably penetrated through with a slide rod (10), the left and right ends of each slide rod (10) are fixedly connected with a fixed block (11), each fixed block (11) is fixedly connected with the inner wall of the filtering cavity, the right end of the filtering plate (9) and the corresponding fixed block (11) on the right side are fixedly connected with a spring (12), the spring (12) is sleeved on the corresponding slide rod (10), the partition plate (8) is provided with a material falling port (13) communicated with the collecting cavity at a position in front of the two filtering plates (9); A rectangular movable opening (15) is formed in the upper end of the dust filtering box (1) and at the positions corresponding to the two filtering plates (9), the upper end of the dust filtering box (1) is fixedly connected with a driving box (14) covering the movable opening (15), the upper ends of the two filtering plates (9) are all fixedly connected with vertically arranged contact plates (16), the upper ends of the two contact plates (16) are all penetrated through the movable opening (15) and extend into the driving box (14), two rotating rods (17) are rotatably connected between the front and rear inner walls of the driving box (14), convex cams (18) are fixedly sleeved on the two rotating rods (17), and the two convex cams (18) are in contact with one side of the two contact plates (16) respectively.

2. The flue gas treatment and cleaning plant for asphalt mixing production according to claim 1, characterized in that, A horizontally arranged conveying belt (24) is installed in the collecting cavity.

3. The flue gas treatment and cleaning plant for asphalt mixing production according to claim 2, characterized in that, A communication port (22) is formed in the lower inner wall of the collecting cavity and at a position right to the conveying belt (24), and a dust collecting box (23) is fixedly connected with the dust filtering box (1) and communicated with the communication port (22).

4. The flue gas treatment and cleaning device for asphalt mixing production according to claim 1, characterized in that, The output end of the negative pressure fan (4) is communicated with a cooling water tank (5), a spraying head is arranged in the cooling water tank (5), and a water pump is fixedly installed on the upper end of the cooling water tank (5) and communicated with the spraying head.

5. The flue gas treatment plant for asphalt mixing production according to claim 4, characterized in that, The right end of the cooling water tank (5) is communicated with a second pipeline (7), and one end of the second pipeline (7) away from the cooling water tank (5) is communicated with an activated carbon adsorption tower (6).

6. The flue gas treatment and cleaning device for asphalt mixing production according to claim 1, characterized in that, Both front ends of the two rotating rods (17) extend to the front of the driving box (14) and are fixedly sleeved with first gears (19), the front end of the driving box (14) is rotatably connected with a second gear (20) between the two first gears (19), the second gear (20) is in mesh with the two first gears (19) at the same time, and the rear end of the driving box (14) is fixedly installed with a driving motor (21) for driving one of the rotating rods (17) to rotate.

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