Dust hood for heat recovery coke oven

Abstract

The utility model relates to the technical field of dust hood equipment, and provides a dust hood for a heat recovery coke oven, which comprises a hollow outer hood, a hollow inner hood is arranged in the outer hood, the top of the inner hood is connected with a top plate through a plurality of vertical plates, and the outer edge of the bottom of the inner hood is bent upwards and attached to the inner wall of the outer hood. An ash carrying cavity is formed between the outer edge which is bent upwards and the outer wall of the inner cover, and an ash cleaning opening is formed in the outer edge, bent upwards, of the inner cover. According to the dust removal device, the defects in the prior art are overcome, the design is reasonable, the structure is compact, smoke enters the outer cover through the inner cover, large-particle dust is filtered and blocked by the filter plate, the large-particle dust is separated in advance and settles and falls into the dust carrying cavity, and the subsequent dust removal efficiency is improved. The driving motor is started, the dust removing column is downwards inserted into the filtering hole to push out dust in the filtering hole, then the inner cover moves downwards, the dust carrying cavity in the bottom of the inner cover moves out of the outer cover, and dust in the dust carrying cavity can be conveniently removed.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal hood equipment, in particular to a dust removal hood for a heat recovery coke oven. Background Art

[0002] The heat recovery coke oven continuous casting dust hood is an important equipment in the coke oven production process. It is mainly used to control and reduce the emission of smoke and harmful gases generated during the coke oven continuous casting process. The dust hood is covered above the coke oven continuous casting operation area to form a closed or semi-closed space. When the coke oven is performing continuous casting operations, the smoke and harmful gases generated are captured by the dust hood and processed through the internal dust removal system.

[0003] The current dust hood only has the function of capturing flue gas, but lacks actual dust removal effect. When the dust removal system is running, large particles of dust can easily clog the bags of the dust collector, which not only affects the normal use of the bags, but also significantly reduces the subsequent dust removal efficiency. For this reason, we propose a dust hood for heat recovery coke ovens. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a dust removal hood for a heat recovery coke oven to solve the above problems existing in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a dust removal cover for a heat recovery coke oven, comprising a hollow outer cover, a hollow inner cover is arranged inside the outer cover, a top plate is connected to the top of the inner cover through a plurality of vertical plates, an outer edge of the bottom of the inner cover is bent upward and fits the inner wall of the outer cover, an ash-carrying cavity is formed between the bent outer edge and the outer wall of the inner cover, an ash-cleaning port is provided on the outer edge of the inner cover bent upward, a first driving rod is provided on the top plate, and one end of the first driving rod extending out of the outer cover is connected to the outer cover through a spring;

[0008] A filter plate is arranged inside the outer cover, the inner wall of the filter plate is arranged in contact with the outer wall of the top plate, and a plurality of filter holes are opened on the filter plate.

[0009] Furthermore, the top plate completely covers the top opening of the inner cover, and an air intake gap is left between the inner cover and the top plate by arranging a plurality of vertical plates.

[0010] Furthermore, a cleaning plate is provided above the filter plate in the outer cover, a plurality of cleaning columns matching the filter holes are provided at the bottom of the cleaning plate, a second driving rod is provided on the top of the cleaning plate, and one end of the second driving rod extending out of the outer cover is connected to the outer cover through a spring.

[0011] Furthermore, a support plate is provided on the outer cover, a drive motor is provided on the support plate, and an output end of the drive motor drives the first drive rod and the second drive rod at intervals through a transmission assembly.

[0012] Furthermore, the transmission assembly includes a driving cam, and the outer wall of the driving cam is provided with two parallel sliding grooves and two cross-arranged connecting grooves, the two ends of the connecting grooves are respectively connected to the head end and the tail end of the two sliding grooves, the support plate is slidably connected with a slide plate, the slide plate is slidably connected with a vertical rod, the bottom of the vertical rod is connected to the top of the slide plate through a spring, the top of the vertical rod is rotatably connected with a sliding block, the sliding block is slidably connected in a groove composed of the sliding groove and the connecting groove, and the vertical rod is arranged above the first driving rod and the second driving rod.

[0013] Furthermore, the distance between the two parallel sliding grooves matches the distance between the first driving rod and the second driving rod on the same side.

[0014] Furthermore, two first driving rods and two second driving rods are respectively provided and are rectangular in shape, and the two first driving rods are diagonally distributed.

[0015] Further, the driving of the first driving rod and the second driving rod on one side is the same as the driving on the other side, and the order of driving the first driving rod and the second driving rod is also the same.

[0016] (III) Beneficial effects

[0017] The embodiment of the utility model provides a dust removal hood for a heat recovery coke oven. It has the following beneficial effects:

[0018] 1. The flue gas passes through the inner cover and enters the outer cover. Large dust particles are filtered and blocked by the filter plate, and the large dust particles are separated in advance and fall into the ash-carrying chamber, thereby improving the efficiency of subsequent dust removal.

[0019] 2. The driving motor is started, and the dust cleaning column is inserted downward into the filter hole to push out the dust in the filter hole. Then the inner cover moves downward, and the dust-carrying chamber at the bottom moves out of the outer cover, so that the dust in the dust-carrying chamber can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a main perspective schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a bottom-up stereoscopic schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a right-side stereoscopic schematic diagram of the overall structure of the utility model;

[0023] Figure 4 It is a sectional three-dimensional schematic diagram of the overall structure of the utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the hidden cover structure of the utility model;

[0025] Figure 6 It is a three-dimensional schematic diagram of the inner cover structure of the utility model;

[0026] Figure 7 This is a three-dimensional schematic diagram of the structure of the dust cleaning plate of the utility model;

[0027] Figure 8 It is a three-dimensional schematic diagram of the air intake gap structure between the inner cover and the top plate of the utility model;

[0028] Fig. 9 This is a three-dimensional schematic diagram of the drive bump structure of the utility model;

[0029] Fig.10 It is a three-dimensional schematic diagram of the sliding block structure of the utility model.

[0030] In the figure: 1, outer cover; 11, filter plate; 12, filter hole; 2, inner cover; 21, top plate; 22, ash loading chamber; 23, ash cleaning port; 24, first drive rod; 31, ash cleaning plate; 32, ash cleaning column; 33, second drive rod; 4, support plate; 41, drive motor; 421, drive cam; 422, slide groove; 423, connecting groove; 424, slide plate; 425, vertical rod; 426, sliding block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Refer to the attached Figure 1-10 A dust removal cover for a heat recovery coke oven comprises a hollow outer cover 1, a hollow inner cover 2 is arranged inside the outer cover 1, a top plate 21 is connected to the top of the inner cover 2 through a plurality of vertical plates, and smoke enters the inner cover 2 into the outer cover 1;

[0033] A filter plate 11 is provided inside the outer cover 1. The inner wall of the filter plate 11 is arranged in contact with the outer wall of the top plate 21. A plurality of filter holes 12 are provided on the filter plate 11. Large particles of dust are filtered and blocked by the filter plate 11. Small particles of dust enter the top of the outer cover 1 through the filter holes 12 and are discharged from the outer cover 1 for subsequent processing. Large particles of dust are blocked and separated in advance, thereby improving the efficiency of subsequent dust removal.

[0034] The outer edge of the bottom of the inner cover 2 is bent upward and fits the inner wall of the outer cover 1, and an ash-carrying cavity 22 is formed between the bent outer edge and the outer wall of the inner cover 2, and the filtered large dust particles settle and fall into the ash-carrying cavity 22;

[0035] A first driving rod 24 is provided on the top plate 21. One end of the first driving rod 24 extending out of the outer cover 1 is connected to the outer cover 1 through a spring. By driving the first driving rod 24 downward, the ash-carrying cavity 22 at the bottom of the inner cover 2 moves downward out of the outer cover 1.

[0036] A dust cleaning port 23 is provided on the outer edge of the inner cover 2 that is bent upwards. The dust inside the dust carrying chamber 22 can be cleaned out through the dust cleaning port 23. After cleaning, the inner cover 2 can be put back into the outer cover 1 for subsequent use.

[0037] In this embodiment, the top plate 21 completely covers the top opening of the inner cover 2. An air intake gap is left between the inner cover 2 and the top plate 21 by setting a plurality of vertical plates, so that the smoke in the inner cover 2 can enter the outer cover 1 through the air intake gap. The top plate 21 completely covers the inner cover 2, which can prevent large dust particles from falling into the inner cover 2 and then falling into the factory building, affecting the air quality in the factory building.

[0038] Furthermore, the smoke enters the outer cover 1 through the air intake gap, which can blow large particles of dust toward the edge of the inner cavity of the outer cover 1, further preventing the dust from entering the factory through the inner cover 2.

[0039] In this embodiment, a cleaning plate 31 is provided above the filter plate 11 in the outer cover 1, and a plurality of cleaning columns 32 cooperating with the filter holes 12 are provided at the bottom of the cleaning plate 31. A second driving rod 33 is provided on the top of the cleaning plate 31. One end of the second driving rod 33 extending out of the outer cover 1 is connected to the outer cover 1 through a spring. When the second driving rod 33 is pressed, the cleaning plate 31 drives the cleaning columns 32 to move downward, so that the cleaning columns 32 are inserted downward into the filter holes 12, and the large particles of dust remaining in the filter holes 12 are pushed out of the filter holes 12, so as to prevent the large particles of dust from clogging the filter holes 12 and affecting the overall filtration of the filter plate 11.

[0040] In this embodiment, a support plate 4 is provided on the outer cover 1, and a drive motor 41 is provided on the support plate 4. The output end of the drive motor 41 drives the first drive rod 24 and the second drive rod 33 at intervals through a transmission component. The drive motor 41 first drives the second drive rod 33 downward through the transmission component, so that the cleaning column 32 pushes the dust in the filter hole 12 downward, and then drives the first drive rod 24 downward, so that the inner cover 2 moves downward out of the outer cover 1. At this time, it is convenient to clean the large particles of dust in the ash chamber 22 on the inner cover 2.

[0041] In this embodiment, the transmission assembly includes a driving cam 421, and the outer wall of the driving cam 421 is provided with two parallel slide grooves 422 and two cross-arranged connecting grooves 423, and the two ends of the connecting groove 423 are respectively connected to the head end and the tail end of the two slide grooves 422, and the two parallel slide grooves 422 are provided on the outer convex part of the driving cam 421, and the two cross-arranged connecting grooves 423 are provided on the arc part of the driving cam 421. When the driving motor 41 drives the driving cam 421 to rotate, the slide grooves 422 and the connecting grooves 423 rotate accordingly;

[0042] The support plate 4 is slidably connected with a slide plate 424, and the slide plate 424 is slidably connected with a vertical rod 425. The bottom of the vertical rod 425 is connected to the top of the slide plate 424 through a spring, and the top of the vertical rod 425 is rotatably connected with a sliding block 426, and the sliding block 426 is slidably connected in the groove composed of the sliding groove 422 and the connecting groove 423. The sliding groove 422 rotates to drive the sliding block 426 to move, further causing the vertical rod 425 to move downward first, and then the vertical rod 425 is reset upward under the action of the spring on it, and the driving cam 421 continues to rotate, and the sliding block 426 moves in the connecting groove 423, further causing the vertical rod 425 to drive the slide plate 424 to slide horizontally on the support plate 4, at this time, the sliding block 426 moves into another sliding groove 422, and at this time, the driving cam 421 continues to rotate to cause the vertical rod 425 to move downward, and then the vertical rod 425 is reset upward under the action of the spring on it;

[0043] The vertical rod 425 is arranged above the first driving rod 24 and the second driving rod 33. When the vertical rod 425 moves downward for the first time, it will push the second driving rod 33 to move downward, so that the cleaning column 32 cleans the dust in the filter hole 12. When the vertical rod 425 moves downward for the second time, it will push the inner cover 2 to move downward, so that the ash carrying chamber 22 moves out of the outer cover 1 to clean the dust inside it.

[0044] In this embodiment, the distance between the two parallel slide grooves 422 is adapted to the distance between the first drive rod 24 and the second drive rod 33 on the same side. When the sliding block 426 moves from one slide groove 422 to another slide groove 422 through the connecting groove 423, the vertical rod 425 just moves from the top of the second drive rod 33 to the top of the first drive rod 24, so as to facilitate the interval between pushing the second drive rod 33 and the first drive rod 24.

[0045] In this embodiment, two first driving rods 24 and two second driving rods 33 are respectively provided and are rectangular, and the two first driving rods 24 are diagonally distributed, which can increase the force of the first driving rod 24 on the inner cover 2 and the second driving rod 33 on the cleaning plate 31.

[0046] In this embodiment, the drive on the first drive rod 24 and the second drive rod 33 on one side is the same as the drive on the other side, and the order of driving the first drive rod 24 and the second drive rod 33 is also the same. The two drives simultaneously push the diagonally arranged second drive rod 33 to move downward, so that the cleaning plate 31 drives the cleaning column 32 to move downward more stably, and the two drives simultaneously push the diagonally arranged first drive rod 24 downward, so that the downward movement of the inner cover 2 is more stable.

[0047] Working principle: The flue gas passes through the inner cover 2 into the outer cover 1, and then moves upward through the filter holes 12 on the filter plate 11. At this time, large particles of dust are blocked by the filter plate 11 and settle into the ash-carrying chamber 22, thereby improving the efficiency of subsequent dust removal.

[0048] During dust cleaning, the driving motor 41 is started, and the driving cam 421 rotates. At this time, the slide groove 422 pushes the vertical rod 425 downward through the sliding block 426, and further makes the second driving rod 33 move downward. At this time, the cleaning plate 31 drives the cleaning column 32 to move downward, and the cleaning column 32 is inserted downward into the filter hole 12 to push the dust in the filter hole 12 out.

[0049] The driving cam 421 continues to rotate, and the sliding block 426 enters another sliding groove 422 through the connecting groove 423. During this process, the vertical rod 425 moves from the top of the second driving rod 33 to the top of the first driving rod 24. The driving cam 421 continues to rotate, and the sliding groove 422 pushes the vertical rod 425 to move downward through the sliding block 426, further causing the first driving rod 24 to move downward. At this time, the ash loading chamber 22 at the bottom of the inner cover 2 moves out of the outer cover 1, which is convenient for cleaning the dust in the ash loading chamber 22.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust removal cover for a heat recovery coke oven, comprising a hollow outer cover (1), characterized in that: A hollow inner cover (2) is arranged inside the outer cover (1); the top of the inner cover (2) is connected to a top plate (21) via a plurality of vertical plates; the outer edge of the bottom of the inner cover (2) is bent upward and fits the inner wall of the outer cover (1); an ash-carrying cavity (22) is formed between the bent outer edge and the outer wall of the inner cover (2); an ash-cleaning port (23) is provided on the outer edge of the inner cover (2) that is bent upward; a first driving rod (24) is provided on the top plate (21); one end of the first driving rod (24) extending out of the outer cover (1) is connected to the outer cover (1) via a spring; A filter plate (11) is provided inside the outer cover (1), the inner wall of the filter plate (11) is arranged in contact with the outer wall of the top plate (21), and a plurality of filter holes (12) are provided on the filter plate (11).

2. A dust removal hood for a heat recovery coke oven according to claim 1, characterized in that: The top plate (21) completely covers the top opening of the inner cover (2), and an air intake gap is left between the inner cover (2) and the top plate (21) by arranging a plurality of vertical plates.

3. A dust removal hood for a heat recovery coke oven according to claim 1, characterized in that: A cleaning plate (31) is provided above the filter plate (11) in the outer cover (1), a plurality of cleaning columns (32) matching the filter holes (12) are provided at the bottom of the cleaning plate (31), a second driving rod (33) is provided at the top of the cleaning plate (31), and one end of the second driving rod (33) extending out of the outer cover (1) is connected to the outer cover (1) via a spring.

4. A dust removal hood for a heat recovery coke oven as claimed in claim 3, characterized in that: The outer cover (1) is provided with a support plate (4), and the support plate (4) is provided with a drive motor (41). The output end of the drive motor (41) drives the first drive rod (24) and the second drive rod (33) at intervals through a transmission assembly.

5. A dust removal hood for a heat recovery coke oven as claimed in claim 4, characterized in that: The transmission assembly comprises a driving cam (421), the outer wall of the driving cam (421) is provided with two parallel sliding grooves (422) and two cross-arranged connecting grooves (423), the two ends of the connecting groove (423) are respectively connected to the head end and the tail end of the two sliding grooves (422), the support plate (4) is slidably connected with a slide plate (424), the slide plate (424) is slidably connected with a vertical rod (425), the bottom of the vertical rod (425) is connected to the top of the slide plate (424) through a spring, the top of the vertical rod (425) is rotatably connected with a sliding block (426), the sliding block (426) is slidably connected in a groove formed by the sliding groove (422) and the connecting groove (423), and the vertical rod (425) is arranged above the first driving rod (24) and the second driving rod (33).

6. A dust removal hood for a heat recovery coke oven as claimed in claim 5, characterized in that: The distance between the two parallel sliding grooves (422) matches the distance between the first driving rod (24) and the second driving rod (33) on the same side.

7. A dust removal hood for a heat recovery coke oven as claimed in claim 6, characterized in that: Two first driving rods (24) and two second driving rods (33) are respectively provided and are rectangular in shape, and the two first driving rods (24) are diagonally distributed.

8. A dust removal hood for a heat recovery coke oven as claimed in claim 7, characterized in that: The driving of the first driving rod (24) and the second driving rod (33) on one side is the same as the driving on the other side, and the order of driving the first driving rod (24) and the second driving rod (33) is also the same.

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