Dust removal device for cement plant

Abstract

The utility model relates to the technical field of dust removal devices, and discloses a cement plant dust removal device which comprises a dust collection shell and a sealing cover, a rotating shaft is arranged on the lower half portion of the dust collection shell, auxiliary rollers are arranged at the two ends of the rotating shaft, a cam is arranged in the center of the rotating shaft, and a sliding rail is arranged on the inner wall of the dust collection shell and located above the rotating shaft. A sliding rail is arranged on the base, a sliding rod is arranged between the sliding rail, a support is arranged at the top of the sliding rod, a connecting rod is arranged above the support, an annular support is arranged at the top end of the connecting rod, the annular support and the annular brush on the support ascend together, and therefore the filter element is brushed and cleaned through the annular brush; and the support and the assembly thereof automatically descend and reset under the action of gravity, so that the filter element is cleaned through rotation of the auxiliary roller, blockage of the filter element is avoided, and the dust collection efficiency of the fan when much dust exists is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal device for a cement plant. Background Art

[0002] A large amount of dust is generated during cement production. If the dust is not controlled, it will cause serious pollution to the surrounding environment. Dust emission into the atmosphere will not only affect air quality, but also may damage the ecosystem. If the dust concentration in the working environment of the cement plant is too high, it will damage the respiratory system of employees and cause occupational diseases. Therefore, effective dust removal is an important measure to ensure the health and safety of employees. Existing dust reduction measures in cement plants generally include dust suction and spray dust reduction.

[0003] After searching, the Chinese utility model patent with publication number: CN212119421U discloses a dust removal device for cement plant dust, including a dust collecting box, a bearing is fixedly connected to the left side of the top of the dust collecting box, a dust suction pipe is connected above the bearing, a dust suction hood is fixedly connected to the dust suction pipe, a fan is arranged on the right side of the top of the dust collecting box, a filter is arranged at the connection between the fan and the dust collecting box, a guide rail is arranged on the left side of the dust collecting box, a cross bar is arranged on the right side of the guide rail, a scraper is fixedly connected to the cross bar, a water spray pipe is fixedly connected to the right side of the dust collecting box, and an atomizing nozzle is plugged into the left side of the water spray pipe. The utility model collects the dust generated in the production workshop of the cement plant during production, improves the production environment of the staff, greatly reduces the probability of occupational diseases caused by dust, and improves the recycling rate of dust.

[0004] However, due to the huge amount of dust emitted during the cement production process, a large amount of high-temperature dust and cement ash will adhere to the filter, and the dust removal device will have a large workload. It can maintain a certain dust removal effect in a short period of time, but long-term use will easily cause dust accumulation on the filter, resulting in poor dust removal effect, and the filter needs to be frequently replaced or cleaned, resulting in low work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a cement plant dust removal device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cement plant dust removal device, comprising: a dust collecting shell and a sealing cover, a rotating shaft is provided at the lower half of the dust collecting shell, auxiliary rollers are provided at both ends of the rotating shaft, a cam is provided in the center of the rotating shaft, a slide rail is provided on the inner wall of the dust collecting shell above the rotating shaft, a slide rod is provided between the slide rails, a support is provided on the top of the slide rod, a connecting rod is provided above the support, an annular bracket is provided on the top of the connecting rod, an annular brush is provided on the inner wall of the annular bracket, a sealing cover is provided on the top of the dust collecting shell, a fan is provided in the middle of the sealing cover, a filter element is provided at the bottom end of the fan, and the filter element is located on the inner side of the annular brush.

[0007] Furthermore, there are a plurality of annular brushes, which are arranged in layers at equal intervals on the annular bracket, and a distance between two adjacent annular brushes is smaller than the stroke of the slide rod.

[0008] Furthermore, air inlet filters are provided on both sides of the top of the sealing cover. The air inlet filters are in a normally closed state. When the air inlet filters are opened, they are used for heat dissipation and air intake of the fan.

[0009] Furthermore, when the cam abuts against the bottom of the support, it can drive the support to move upward, and when the support rises to the highest point, the annular bracket is flush with the top surface of the filter element.

[0010] Furthermore, the bristles of the annular brush are in contact with the outer wall of the filter element.

[0011] Furthermore, an ash inlet joint is provided on one side of the outer wall of the dust collecting shell, and an air outlet filter is provided on the other side. A universal roller is provided at the bottom of the dust collecting shell, and the auxiliary roller surface is on the same plane as the bottom surface of the universal roller.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model realizes that when the dust collecting device of the cement plant is used, the whole device is moved to the dust collecting area, the fan is started to make the interior of the dust collecting housing in a negative pressure state, and the ash inlet joint is connected to the dust suction pipe for negative pressure dust suction. During the dust suction process, the whole dust collecting housing is moved to make the auxiliary roller rotate accordingly. When the auxiliary roller rotates, the auxiliary roller is fixedly connected to the rotating shaft, and the rotating shaft is driven to rotate together. The rotating shaft and the cam are also fixedly connected, so that the cam also rotates. When the cam contacts the support, the support is driven to rise under the guiding action of the slide rail, so that the annular bracket and the annular brush on the support rise together, so that the annular brush can brush and clean the filter element. When the low point of the cam contacts the support, the support and its components automatically descend and reset under the action of gravity, so that the filter element is cleaned by the rotation of the auxiliary roller, the filter element is avoided from being blocked, and the dust suction efficiency of the fan when there is a lot of dust is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a cement plant dust removal device of the utility model;

[0015] Figure 2 This is a front view of a cement plant dust removal device of the utility model;

[0016] Figure 3 This is a left sectional view of a cement plant dust removal device of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the internal structure of a cement plant dust removal device.

[0018] In the figure: 1. Dust collecting housing; 2. Auxiliary roller; 3. Dust inlet joint; 4. Sealing cover; 5. Air inlet filter; 6. Fan; 7. Filter element; 8. Rotating shaft; 9. Cam; 10. Slide rail; 11. Slide rod; 12. Support; 13. Connecting rod; 14. Ring bracket; 15. Ring brush; 16. Air outlet filter. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 4The utility model provides a technical solution: a cement plant dust removal device, comprising: a dust collecting shell 1 and a sealing cover 4, a rotating shaft 8 is provided at the lower half of the dust collecting shell 1, auxiliary rollers 2 are provided at both ends of the rotating shaft 8, a cam 9 is provided in the center of the rotating shaft 8, a slide rail 10 is provided on the inner wall of the dust collecting shell 1 above the rotating shaft 8, a slide rod 11 is slidably connected between the slide rails 10, an accordion dust cover is installed on the slide rail 10 to prevent dust from clogging the slide rail, a support 12 is fixed on the top of the slide rod 11, a connecting rod 13 is fixed above the support 12, an annular bracket 14 is fixed on the top of the connecting rod 13, an annular brush 15 is fixed on the inner wall of the annular bracket 14, a sealing cover 4 is provided on the top of the dust collecting shell 1, a fan 6 is provided in the middle of the sealing cover 4, a filter element 7 is provided at the bottom end of the fan 6, and the filter element 7 is located on the inner side of the annular brush 15. The auxiliary roller 2 is fixedly connected to the rotating shaft 8, which drives the rotating shaft 8 to rotate together. The rotating shaft 8 is also fixedly connected to the cam 9, so that the cam 9 also rotates. When the cam 9 contacts the support 12, the support 12 is driven to rise under the guidance of the slide rail 10, so that the annular bracket 14 and the annular brush 15 on the support 12 rise together, thereby realizing the brushing and cleaning of the filter element 7 by the annular brush 15. When the low point of the cam 9 contacts the support 12, the support 12 and its components automatically descend and reset under the action of gravity, so that the filter element 7 is cleaned by the rotation of the auxiliary roller 2, the filter element 7 is avoided from being blocked, and the dust collection efficiency of the fan 6 when there is a lot of dust is guaranteed.

[0021] There are multiple annular brushes 15, which are arranged in layers with equal intervals on the annular bracket 14. The distance between two adjacent annular brushes 15 is smaller than the stroke of the slide rod 11. Gaps are left between the annular brushes 15 to facilitate the flow of wind and avoid the annular brushes 15 blocking the air intake of the filter element 7 and causing a reduction in suction.

[0022] Air inlet filters 5 are arranged on both sides of the top of the sealing cover 4. The air inlet filters 5 are in a normally closed state. When the air inlet filters 5 are opened, they are used for heat dissipation and air intake of the fan 6.

[0023] When the cam 9 abuts against the bottom of the support 12 , it can drive the support 12 to move upward. When the support 12 rises to the highest point, the annular bracket 14 is flush with the top surface of the filter element 7 .

[0024] The bristles of the annular brush 15 are in contact with the outer wall of the filter element 7 , so as to clean the filter element 7 and avoid clogging of the filter element 7 .

[0025] An ash inlet joint 3 is provided on one side of the outer wall of the dust collecting shell 1 for connecting the dust suction pipe for negative pressure dust suction, and an air outlet filter 16 is provided on the other side for air outlet filtering to prevent the dust in the dust collecting shell 1 from flying out to the outside. A universal roller is provided at the bottom of the dust collecting shell 1, and the ground of the auxiliary roller 2 and the bottom surface of the universal roller are on the same plane, so that when the dust collecting shell 1 moves, the auxiliary roller 2 can contact the ground and rotate.

[0026] When the cement plant dust removal device is used, the entire device is moved to the dust removal area, the fan 6 is started to make the inside of the dust collecting housing 1 in a negative pressure state, and the ash inlet joint 3 is connected to the dust suction pipe for negative pressure dust suction. During the dust suction process, the auxiliary roller 2 is moved to rotate with the auxiliary roller 2. When the auxiliary roller 2 rotates, the auxiliary roller 2 is fixedly connected to the rotating shaft 8, and the rotating shaft 8 is driven to rotate together. The rotating shaft 8 is also fixedly connected to the cam 9, so that the cam 9 also rotates. When the cam 9 contacts the support 12, the support 12 is driven to rise under the guidance of the slide rail 10, so that the annular bracket 14 and the annular brush 15 on the support 12 rise together, so that the annular brush 15 can brush and clean the filter element 7. When the low point of the cam 9 contacts the support 12, the support 12 and its components automatically descend and reset under the action of gravity, so that the filter element 7 is cleaned by the rotation of the auxiliary roller 2, the filter element 7 is avoided from being blocked, and the dust suction efficiency of the fan 6 when there is a lot of dust is ensured.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A cement plant dust removal device, comprising: The dust collecting shell (1) and the sealing cover (4) are characterized in that: a rotating shaft (8) is provided at the lower half of the dust collecting shell (1), auxiliary rollers (2) are provided at both ends of the rotating shaft (8), a cam (9) is provided in the center of the rotating shaft (8), a slide rail (10) is provided on the inner wall of the dust collecting shell (1) above the rotating shaft (8), a slide rod (11) is provided between the slide rails (10), a support (12) is provided at the top of the slide rod (11), a connecting rod (13) is provided above the support (12), an annular bracket (14) is provided at the top of the connecting rod (13), an annular brush (15) is provided on the inner wall of the annular bracket (14), a sealing cover (4) is provided at the top of the dust collecting shell (1), a fan (6) is provided in the middle of the sealing cover (4), a filter element (7) is provided at the bottom end of the fan (6), and the filter element (7) is located on the inner side of the annular brush (15).

2. A cement plant dust removal device according to claim 1, characterized in that: There are a plurality of annular brushes (15), which are arranged in layers at equal intervals on the annular support (14), and the distance between two adjacent annular brushes (15) is smaller than the stroke of the slide rod (11).

3. A cement plant dust removal device according to claim 1, characterized in that: Air inlet filters (5) are provided on both sides of the top of the sealing cover (4). The air inlet filters (5) are in a normally closed state. When the air inlet filters (5) are opened, they are used for heat dissipation and air intake of the fan (6).

4. A cement plant dust removal device according to claim 1, characterized in that: When the cam (9) contacts the bottom of the support (12), it can drive the support (12) to move upwards. When the support (12) rises to the highest point, the annular bracket (14) is flush with the top surface of the filter element (7).

5. A cement plant dust removal device according to claim 1, characterized in that: The bristles of the annular brush (15) are in contact with the outer wall of the filter element (7).

6. A cement plant dust removal device according to claim 1, characterized in that: An ash inlet joint (3) is provided on one side of the outer wall of the dust collecting housing (1), and an air outlet filter (16) is provided on the other side. A universal roller is provided at the bottom of the dust collecting housing (1), and the ground of the auxiliary roller (2) is on the same plane as the bottom surface of the universal roller.

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