Dust removal device for powder tank of concrete mixing station

Abstract

The utility model discloses a dust removal device for a powder tank of a concrete mixing station, which comprises a dust removal filter bin, a dust collection structure is arranged below the dust removal filter bin, a dust suction structure is arranged above the dust removal filter bin, and a dust removal filter element is arranged in the dust removal filter bin. A self-cleaning structure is arranged below the dust removal filter element, and a waste tank is arranged at the bottom of one side of the dust removal filter bin. When the fan of the dust collection structure is started for dust collection treatment, airflow generated in the dust collection filter bin drives the self-rotating fan blades to rotate, and the self-rotating fan blades drive the scraping plate and the brush to rotate to continuously and automatically clean the lower surface of the dust collection filter element, so that the surface of the dust collection filter element can be kept clean for a long time; the service life of the dust removal filter element is prolonged, the cost of replacing the dust removal filter element is reduced, dust removal adsorption is carried out, self-starting is carried out through power of the dust removal fan, and extra energy consumption is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing technical field, especially a dust collector for concrete mixing station powder tank. BACKGROUND

[0002] In the concrete mixing station, the powder tank is a key equipment for storing and supplying powder materials (such as cement, fly ash, etc.). However, during the loading, stirring and conveying of the powder, a large amount of dust will be generated. These dusts not only pollute the environment and affect air quality, but also pose a threat to the health of workers, and are also not conducive to the long-term stable operation of the equipment. Therefore, it is crucial for the concrete mixing station to design an efficient and reliable dust removal device. At present, there are some dust removal devices for the powder tank of the concrete mixing station on the market, but some dust collectors are directly installed on the top of the powder tank and filter the dust-containing gas through the filter core. Although this design can reduce dust emission to a certain extent, the filter core is easy to block and needs to be replaced or cleaned frequently, which increases the maintenance cost.

[0003] The existing dust removal device for the powder tank of the concrete mixing station needs to replace the filter structure frequently, which is costly and affects the dust removal effect if not replaced in time.

[0004] In the Chinese patent document with publication number CN216778278U, a mixing station cement tank dust recycling equipment is disclosed, which includes a dust collecting hood, a dust collecting pipe, a negative pressure blower and a pulse dust removal collector. Each mixing station powder tank has a corresponding dust collecting hood at the top end. The inlet at the bottom end of the dust collecting hood is connected to the outlet of the safety valve and the tank top exhaust port of the mixing station powder tank. The outlet at the top end of each dust collecting hood is connected to the air inlet of the negative pressure blower through the dust collecting pipe. The inlet of the pulse dust removal collector is connected to the air outlet of the negative pressure blower. Compared with the traditional mixing station powder tank sealing technology, the present utility model greatly shortens the construction time and reduces the construction cost. The utility model has the advantages of compact structure, small footprint, flexible placement, simple operation, good dust removal effect and easy maintenance. The dust collecting hood and the pulse dust removal collector work together to collect dust, which greatly reduces the atmospheric pollution index of dust and allows the collected cement dust to be recycled. However, the filter core of the mixing station cement tank dust recycling equipment does not have a self-cleaning function and needs to be replaced frequently to ensure the filtering effect during the dust removal process.

[0005] In order to solve the above-mentioned problems in the prior art, it is a worthwhile research topic to provide a dust removal device for the powder tank of the concrete mixing station. SUMMARY

[0006] The utility model discloses a dust removal device for powder tank of concrete mixing station, which can automatically clean the filter core and prolong the service life of the filter core.

[0007] The utility model discloses a dust removal device for powder tank of concrete mixing station, which can automatically clean the filter core and prolong the service life of the filter core.

[0008] A dust removal device for powder tank of concrete mixing station, comprising a dust removal filter bin, a dust collection structure is arranged below the dust removal filter bin, a dust suction structure is arranged above the dust removal filter bin, a dust removal filter core is arranged inside the dust removal filter bin, a self-cleaning structure is arranged below the dust removal filter core, and a waste tank is arranged at the bottom of one side of the dust removal filter bin.

[0009] The self-cleaning structure comprises a rotating fan blade connected to the inside of the dust removal filter bin and a scraper fixedly connected to the top of the rotating shaft of the rotating fan blade, and the inner side of the scraper is fixedly connected with a brush.

[0010] The rotating fan blade is located above the air inlet of the dust removal filter bin, the inclination of the scraper is matched with the inclination of the bottom of the dust removal filter core, and the end of the brush is tangent to the bottom of the dust removal filter core.

[0011] The side of the dust removal filter core is provided with a plurality of supporting metal plates, the supporting metal plates are annularly and equidistantly distributed on the dust removal filter core, the bottom of the supporting metal plate is fixedly connected with a vibration plate, the vibration plate is made of alloy spring steel, the end of the vibration plate exceeds the inner side of the scraper, the length by which the end of the vibration plate exceeds the inner side of the scraper is less than one millimeter, the vibration of the vibration plate is transmitted to the dust removal filter core by the supporting metal plate, so that the dust attached to the dust removal filter core can be further cleaned under vibration, thereby making the self-cleaning of the filter core of the device more thorough and sufficient and prolonging the service life of the dust removal filter core.

[0012] The dust suction structure comprises a dust removal fan assembled and connected with the top of the dust removal filter bin, and the top of the dust removal fan is in communication with the outside atmosphere through a ventilation pipeline.

[0013] The outer side of the air inlet of the dust removal fan is provided with a plurality of clamping pieces, the clamping pieces are made of alloy spring steel, the clamping pieces are annularly distributed on the outer side of the air inlet of the dust removal fan, the dust removal filter core is clamped and fixed at the bottom of the air inlet of the dust removal fan through the clamping pieces, and the dust removal filter core can be disassembled from the clamping pieces for replacement after being fully used.

[0014] The dust collecting structure comprises a flexible hose fixedly connected to the air inlet at the bottom of the dust removal filter bin and a dust collecting cover fixedly connected to the bottom of the flexible hose, the bottom of the dust collecting cover is shaped to match the top of the powder tank of the concrete mixing station, and the dust collecting cover is obliquely arranged on the top of the side of the powder tank of the concrete mixing station, so that the opening of the powder tank of the concrete mixing station is subjected to the dust removal treatment while remaining open for the convenience of adding materials or observing the mixing progress.

[0015] The dust removal filter bin is threadedly connected to the waste tank, the bottom of the dust removal filter bin is a slope, and the connecting point of the waste tank and the dust removal filter bin is located at the lowest point of the bottom of the dust removal filter bin.

[0016] A plurality of closing plates are rotationally connected to the air inlet at the bottom of the dust removal filter bin, the closing plates cover the air inlet of the dust removal filter bin after being combined, and the shape of the closing plates after being combined is a cone shape; when there is no airflow, the closing plates can close the air inlet of the dust removal filter bin, so that the collected dust cannot flow back from the air inlet, and the closing plates are in the form of a cone shape, so that dust cannot accumulate on the surface of the closing plates.

[0017] A torsion spring is sleeved on the rotating shaft of the closing plate, the torsion of the torsion spring causes the closing plate to be in the combined state, and the torsion of the torsion spring is smaller than the force of the airflow of the dust collecting structure on the closing plate, so that the closing plate is automatically opened when there is airflow to perform the dust removal treatment.

[0018] Positive beneficial effects:

[0019] 1. The dust removal device for the powder tank of the concrete mixing station, when the fan of the dust collecting structure is started to perform the dust removal treatment, airflow is generated in the dust removal filter bin to drive the self-transmission fan blade to rotate, the self-transmission fan blade drives the scraper and the brush to rotate, the lower surface of the dust removal filter element is continuously and automatically cleaned, the surface of the dust removal filter element can be kept clean for a long time, the use time of the dust removal filter element is prolonged, and the cost of replacing the dust removal filter element is reduced.

[0020] 2. The dust removal device for the powder tank of the concrete mixing station, when performing the dust removal and adsorption, the power of the dust removal fan is automatically started, and additional energy consumption is avoided.

[0021] 3. The dust removal device for the powder tank of the concrete mixing station, the vibration of the vibration plate is transmitted to the dust removal filter element through the supporting metal plate, dust attached to the dust removal filter element can be further cleaned under the vibration, so that the self-cleaning of the filter element of the device is more complete and sufficient, and the use time of the dust removal filter element is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the utility model;

[0023] Figure 2The sectional view structure schematic diagram of the utility model;

[0024] Figure 3 The utility model Figure 1 The enlarged structure schematic diagram of A in the middle;

[0025] Figure 4 The utility model Figure 1 The enlarged structure schematic diagram of B in the middle;

[0026] Figure 5 The utility model Figure 1 The enlarged structure schematic diagram of C in the middle;

[0027] Figure 6 The utility model Figure 1 The enlarged structure schematic diagram of D in the middle.

[0028] In the drawing: 1-dust removal filter bin, 2-dust removal filter core, 3-waste tank, 4-self-rotating fan blade, 5-scraping plate, 6-brush, 7-supporting metal plate, 8-vibration plate, 9-dust removal fan, 10-clamping piece, 11-flexible hose, 12-dust collecting cover, 13-closed plate, 14-torsion spring. DETAILED DESCRIPTION

[0029] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0030] Embodiment 1

[0031] As Figures 1 to 6 shown, a dust removal device for a concrete mixing station powder tank, including dust removal filter bin 1, the lower part of dust removal filter bin 1 is provided with dust collecting structure, the upper part of dust removal filter bin 1 is provided with dust suction structure, the inside of dust removal filter bin 1 is provided with dust removal filter core 2, the lower part of dust removal filter core 2 is provided with self-cleaning structure, the bottom of one side of dust removal filter bin 1 is provided with waste tank 3.

[0032] As Figures 1 to 5 shown, the self-cleaning structure includes self-rotating fan blade 4 rotationally connected to the inside of dust removal filter bin 1, and scraping plate 5 fixedly connected to the top of the rotating shaft of self-rotating fan blade 4, the inner side of scraping plate 5 is fixedly connected with brush 6.

[0033] As Figures 4 to 5As shown, the self-rotating fan blade 4 is located above the air inlet of the dust removal filter chamber 1. The inclination of the scraper 5 is adapted to the bottom inclination of the dust removal filter element 2. The end of the brush 6 is tangent to the bottom of the dust removal filter element 2. By setting the wind-driven self-rotating fan blade 4 inside the dust removal filter chamber 1, when the fan of the dust removal structure starts to perform dust removal, the airflow generated inside the dust removal filter chamber 1 drives the self-rotating fan blade 4 to rotate. The self-rotating fan blade 4 then drives the scraper 5 and the brush 6 to rotate, continuously and automatically cleaning the lower surface of the dust removal filter element 2. This allows the surface of the dust removal filter element 2 to remain clean for a longer period of time, extending the service life of the dust removal filter element 2 and reducing the cost of replacing the dust removal filter element 2. Moreover, this self-cleaning structure only operates when dust removal and adsorption is performed, and it is automatically started by the power of the dust removal fan, avoiding additional energy consumption.

[0034] Furthermore, the brush 6 is made of soft materials such as nylon or horsehair, which can thoroughly clean the surface of the dust filter element 2 while avoiding damage to the surface of the dust filter element 2. The nylon brush has good elasticity and wear resistance, and can withstand high temperature and acid and alkali, thus avoiding damage caused by the alkalinity of concrete raw materials.

[0035] Example 2

[0036] like Figures 4 to 5 As shown, several supporting metal plates 7 are provided on the side of the dust collector filter element 2. The supporting metal plates 7 are distributed in a ring at equal intervals on the dust collector filter element 2. A vibrating plate 8 is fixedly connected to the bottom of the supporting metal plates 7. The vibrating plate 8 is made of alloy spring steel. The end of the vibrating plate 8 extends beyond the inner side of the scraper 5. The length of the end of the vibrating plate 8 extending beyond the inner side of the scraper 5 is less than one millimeter. By setting the supporting metal plates 7 on the dust collector filter element 2, the dust collector filter element 2 can be supported, improving the overall strength and stability of the dust collector filter element 2. During the rotation of the scraper 5 driven by the rotating fan blade 4, the scraper 5 will hit the vibrating plate 8 whose end extends beyond the inner side of the scraper 5. During the dust removal process, the vibrating plate 8 is continuously moved and kept in a vibrating state. The vibration of the vibrating plate 8 is transmitted to the dust collector filter element 2 by the supporting metal plates 7, so that the dust attached to the dust collector filter element 2 can be further cleaned under vibration. This makes the self-cleaning of the filter element of the device more thorough and complete, and extends the service life of the dust collector filter element 2.

[0037] like Figures 1 to 2 As shown, the dust collection structure includes a dust collector fan 9 that is assembled and connected to the top of the dust collection filter chamber 1. The top of the dust collector fan 9 is connected to the outside atmosphere through a ventilation duct. By installing the dust collector fan 9 at the top of the dust collection filter chamber 1, it can generate airflow to adsorb the dust gas generated by the powder tank of the concrete mixing plant into the dust collection filter chamber 1, thereby improving the dust removal efficiency.

[0038] Example 3

[0039] likeFigures 2 to 4 As shown, a plurality of clamping pieces 10 are arranged outside the air inlet of the dust removal fan 9. The clamping pieces 10 are made of alloy spring steel and are arranged in a ring shape outside the air inlet of the dust removal fan 9. The dust removal filter element 2 is clamped and fixed at the bottom of the air inlet of the dust removal fan 9 by the clamping pieces 10. The clamping pieces 10 arranged at the bottom of the dust removal fan 9 can clamp and fix the dust removal filter element 2, so that the dust removal filter element 2 can assist the dust removal fan 9 to complete the dust removal treatment of dust air. After the dust removal filter element 2 is fully used, it can be disassembled from the clamping pieces 10 for replacement.

[0040] As shown in Figures 1 to 2 The dust collection structure includes a flexible hose 11 fixedly connected to the bottom air inlet of the dust removal filter bin 1 and a dust collection cover 12 fixedly connected to the bottom of the flexible hose 11. The bottom shape of the dust collection cover 12 is adapted to the top shape of the concrete mixing station powder tank to be dusted. The flexible hose 11 arranged between the dust removal filter bin 1 and the dust collection cover 12 can adjust the position of the dust collection cover 12. The dust collection cover 12 can be completely covered on the top of the concrete mixing station powder tank according to the need, or the dust collection cover 12 can be arranged obliquely on the side of the top of the concrete mixing station powder tank. The dust collection cover 12 can perform dust removal treatment on the opening of the concrete mixing station powder tank while keeping the opening open to facilitate adding materials to the inside or observing the mixing progress.

[0041] As shown in Figures 1 to 6 The dust removal filter bin 1 is threadedly connected with the waste tank 3. The bottom of the dust removal filter bin 1 is inclined. The connection point of the waste tank 3 and the dust removal filter bin 1 is located at the lowest point of the bottom of the dust removal filter bin 1. The waste tank 3 arranged at the bottom of the dust removal filter bin 1 can collect the dust and other waste filtered by the dust removal filter bin 1, facilitating subsequent cleaning and recycling. Further, the inclined bottom of the dust removal filter bin 1 can make the waste enter the waste tank 3 along the inclined surface, reducing the accumulation of waste in the dust removal filter bin 1.

[0042] Example 4

[0043] As shown in Figures 1 to 3 A plurality of closure plates 13 are rotatably connected to the bottom air inlet of the dust removal filter bin 1. The closure plates 13 combine to cover the air inlet of the dust removal filter bin 1. The combined shape of the closure plates 13 is conical. When there is no air flow, the closure plates 13 can close the air inlet of the dust removal filter bin 1 to avoid the collected dust flowing backward from the air inlet. The conical shape of the closure plates 13 can prevent dust from accumulating on the surface of the closure plates 13.

[0044] As shown in Figures 1 to 3As shown, the rotation shaft of the closing plate 13 is sleeved with a torsion spring 14, and the torsion of the torsion spring 14 makes the closing plate 13 in the closed state, and the torsion of the torsion spring 14 is smaller than the force of the air flow generated by the dust removal structure on the closing plate 13, so that the air inlet of the dust removal filter bin 1 can be automatically closed, and automatically opened for dust removal treatment when there is air flow.

[0045] The working principle of the utility model is as follows:

[0046] S1, when the fan of the dust suction structure is started for dust removal treatment, the air flow generated in the dust removal filter bin 1 drives the self-rotation fan blade 4 to rotate, then the self-rotation fan blade 4 drives the scraper 5 and the brush 6 to rotate, and the lower surface of the dust removal filter element 2 is continuously and automatically cleaned, so that the surface of the dust removal filter element 2 can be kept clean for a long time, the use time of the dust removal filter element 2 is prolonged, and the cost of replacing the dust removal filter element 2 is reduced;

[0047] S2, in the rotation process of the scraper 5 driven by the self-rotation fan blade 4, the scraper 5 will collide with the vibration plate 8 which is beyond the inner side of the scraper 5, so that the vibration plate 8 is continuously pushed and kept in a vibrating state during the dust removal process, and the vibration of the vibration plate 8 is transmitted to the dust removal filter element 2 by the supporting metal plate 7, so that the dust attached to the dust removal filter element 2 can be further cleaned under vibration;

[0048] S3, when there is no air flow, the closing plate 13 can close the air inlet of the dust removal filter bin 1, so as to avoid the loss caused by the backflow of the collected dust from the air inlet, and the closing plate 13 is set as a conical shape to avoid the accumulation of dust on the surface of the closing plate 13;

[0049] S4, when there is air flow, it is automatically opened for dust removal treatment of the dust-containing air generated by the concrete mixing station powder tank.

Claims

1. A dust removal device for a powder tank of a concrete mixing station, comprising a dust removal filter bin (1), a dust collection structure is arranged below the dust removal filter bin (1), and a dust suction structure is arranged above the dust removal filter bin (1), characterized in that: The inside of the dust removal filter bin (1) is provided with a dust removal filter core (2), the lower part of the dust removal filter core (2) is provided with a self-cleaning structure, and the bottom of one side of the dust removal filter bin (1) is provided with a waste tank (3).

2. A dust removal device for a powder tank of a concrete mixing plant according to claim 1, characterized in that: The self-cleaning structure comprises a rotating fan blade (4) rotatably connected to the inside of the dust removal filter bin (1), and a scraper (5) fixedly connected to the top of the rotating shaft of the rotating fan blade (4), and the inner side of the scraper (5) is fixedly connected with a brush (6).

3. A dust extraction device for a powder tank of a concrete mixing plant according to claim 2, characterized in that: The rotating fan blade (4) is located above the air inlet of the dust removal filter bin (1), the inclination of the scraper (5) is matched with the inclination of the bottom of the dust removal filter core (2), and the end of the brush (6) is tangent to the bottom of the dust removal filter core (2).

4. A dust extraction device for a powder tank of a concrete mixing plant according to claim 3, characterized in that: The side of the dust removal filter core (2) is provided with a plurality of supporting metal plates (7), the supporting metal plates (7) are distributed in a ring shape at equal intervals on the dust removal filter core (2), the bottom of the supporting metal plate (7) is fixedly connected with a vibrating plate (8), the material of the vibrating plate (8) is alloy spring steel, the end of the vibrating plate (8) exceeds the inner side of the scraper (5), and the length of the end of the vibrating plate (8) exceeding the inner side of the scraper (5) is less than one millimeter.

5. A dust removal device for a powder tank of a concrete mixing plant according to claim 1, characterized in that: The dust removal structure comprises a dust removal fan (9) assembled and connected with the top of the dust removal filter bin (1), and the top of the dust removal fan (9) is communicated with the outside atmosphere through a ventilation pipeline.

6. A dust extraction device for a powder tank of a concrete mixing plant according to claim 5, characterized in that: The outside of the air inlet of the dust removal fan (9) is provided with a plurality of clamping pieces (10), the material of the clamping piece (10) is alloy spring steel, the clamping pieces (10) are distributed in a ring shape outside the air inlet of the dust removal fan (9), and the dust removal filter core (2) is clamped and fixed at the bottom of the air inlet of the dust removal fan (9) through the clamping pieces (10).

7. A dust removal device for a powder tank of a concrete mixing plant according to claim 1, characterized in that: The dust collection structure comprises a telescopic hose (11) fixedly connected to the bottom air inlet of the dust removal filter bin (1) and a dust collection cover (12) fixedly connected to the bottom of the telescopic hose (11), and the bottom shape of the dust collection cover (12) is matched with the top shape of the concrete mixing station powder tank to be dusted.

8. A dust removal device for a powder tank of a concrete mixing plant according to claim 1, characterized in that: The dust removal filter bin (1) is threadedly connected with the waste tank (3), the bottom of the dust removal filter bin (1) is inclined, and the connecting point of the waste tank (3) and the dust removal filter bin (1) is located at the lowest point of the bottom of the dust removal filter bin (1).

9. A dust removal device for a powder tank of a concrete mixing plant according to claim 1, characterized in that: A plurality of closing plates (13) are rotatably connected at the bottom air inlet of the dust removal filter bin (1), the closing plates (13) cover the air inlet of the dust removal filter bin (1) after being combined, and the shape of the closing plates (13) after being combined is conical.

10. A dust extraction device for a powder tank of a concrete mixing plant according to claim 9, characterized in that: A torsion spring (14) is sleeved on the rotating shaft of the closing plate (13), the torsion of the torsion spring (14) makes the closing plate (13) in the combined state, and the torsion of the torsion spring (14) is smaller than the force of the air flow of the dust removal structure acting on the closing plate (13).

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