Cracking furnace waste gas treatment device

Abstract

The utility model relates to a waste gas treatment device for a cracking furnace, which is communicated with a cracking furnace body and comprises a box body structure which comprises a filter box, an expansion cabinet I and an expansion cabinet II, the filter box is communicated with the cracking furnace body, and the expansion cabinet I and the expansion cabinet II are respectively distributed on the front side and the rear side of the filter box; the filtering structure comprises a frame, the frame is located in the filtering box and the second extension cabinet and is provided with two sets of stepped grooves, and a first filter screen and a second filter screen are detachably arranged in the two sets of stepped grooves respectively; the displacement structure is arranged on the filter box and comprises a telescopic component and a connecting block, and the connecting block is arranged at the telescopic end of the telescopic component and connected with the frame. According to the waste gas treatment device for the cracking furnace, when the filter screen I needs to be cleaned, the telescopic component stretches out and draws back to move the filter screen II to the initial position of the filter screen I, the filter screen I can be taken out of the expansion cabinet I for cleaning, shutdown operation is not needed, and it is ensured that the cracking furnace can be normally used when the filter screen I needs to be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cracking furnaces, and specifically relates to a waste gas treatment device for a cracking furnace. Background Art

[0002] With the rapid development of the economy, the quantity of rubber product waste (such as waste tires, etc.) is increasing day by day, which has caused serious impacts on the environment. Currently, the common treatment method for these waste plastics and waste tires is usually to use a cracking furnace to crack the waste materials into...

[0003] In this recycling of renewable resources, a large amount of waste gas is discharged when the cracking furnace is working. If these waste gases are directly discharged into the outside world, it will pollute the outside air. Currently, the common method is to introduce the waste gas discharged from the cracking furnace into a filter (separation cylinder), and after separation, finally discharge it into the outside world. However, after the filter is used for a period of time, the filter screen is prone to clogging and needs to be cleaned. And the shutdown operation for cleaning affects the normal use of the cracking furnace. For this reason, a waste gas treatment device for a cracking furnace is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a waste gas treatment device for a cracking furnace to solve the problem that when the filter screen of the existing waste gas treatment device for a cracking furnace is clogged during the filtration operation, the cracking furnace needs to be shut down to clean the filter screen.

[0005] The technical solution of the utility model is as follows: A waste gas treatment device for a cracking furnace, which is connected to a cracking furnace body, includes:

[0006] A box structure, which includes a filter box, an extension cabinet one, and an extension cabinet two. Among them, the filter box is connected to the cracking furnace body, and the extension cabinet one and the extension cabinet two are respectively distributed on the front and back sides of the filter box;

[0007] A filtering structure, which includes a frame. The frame is located in the filter box and the extension cabinet two, and has two groups of stepped grooves. A filter screen one and a filter screen two are respectively detachably arranged in the two groups of stepped grooves;

[0008] A displacement structure, which is arranged on the filter box and includes a telescopic component and a connecting block. Among them, the connecting block is arranged at the telescopic end of the telescopic component and is connected to the frame.

[0009] Furthermore, it also includes a spray tower and a spray component. Among them, the spray tower is arranged between the filter box and the cracking furnace body, and the spray component is used for spraying and dust reduction on the gas flowing out from the cracking furnace body and passing through the spray tower.

[0010] Further, the spraying assembly includes a spraying frame, a water pump and a connecting pipe. The spraying frame is arranged in the spraying tower. The water inlet of the water pump is communicated with a water source, and the connecting pipe is arranged between the water outlet of the water pump and the spraying frame.

[0011] Further, the widths of the first extension cabinet, the second extension cabinet and the filter box are equal.

[0012] Further, a sliding groove is formed in the second extension cabinet, and the lower part of the connecting block is slidably connected in the sliding groove and fixedly connected to the frame.

[0013] Further, both the first filter screen and the second filter screen are detachably arranged in the two groups of stepped grooves through bolts.

[0014] Further, cabinet doors are arranged on the outer sides of the first extension cabinet and the second extension cabinet.

[0015] Further, the telescopic member is one of a cylinder, an electric push rod and a hydraulic push rod.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0017] In the waste gas treatment device for the cracking furnace, a frame that can be pushed flat is designed, and the first filter screen and the second filter screen are detachably arranged in the two groups of stepped grooves. When the first filter screen needs to be cleaned, the telescopic member is used to stretch and retract, so that the second filter screen moves to the position where the first filter screen was initially located. During the position adjustment, the parts of the first filter screen and the second filter screen located in the filter box can continue to undertake the filtering work. After the adjustment, the first filter screen can be taken out from the first extension cabinet for cleaning without stopping the operation, ensuring that the cracking furnace can be used normally when the first filter screen needs to be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a waste gas treatment device for a cracking furnace provided by an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0020] Figure 3 is Figure 1 a left view of the spraying tower and its connection structure in

[0021] Figure 4 is a schematic diagram of the filter box and its connection structure in this embodiment;

[0022] Figure 5 is Figure 4 a partial enlarged schematic diagram of area A in

[0023] Figure 6 is Figure 4Explosion schematic diagram of the middle filtering structure and displacement structure.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Pyrolysis furnace body; 2. Box structure; 21. Filter box; 22. Extension cabinet one; 23. Extension cabinet two; 24. Slide groove; 25. Cabinet door; 3. Filtering structure; 31. Frame; 32. Step groove; 33. Filter screen one; 34. Filter screen two; 4. Displacement structure; 41. Telescopic component; 42. Connecting block; 5. Spray tower; 6. Spray component; 61. Spray rack; 62. Water pump; 63. Connecting pipe. Specific implementation mode

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

[0027] As Figure 1 and Figure 2 shown, a pyrolysis furnace waste gas treatment device in this embodiment is connected to the exhaust port of the pyrolysis furnace body 1 and is used for filtering the waste gas generated by the pyrolysis furnace body 1. The pyrolysis furnace waste gas treatment device includes a box structure 2, a filtering structure 3 and a displacement structure 4. Among them, the displacement structure 4 is arranged on the box structure 2 and is used for adjusting the position of the filtering structure 3 in the box structure 2.

[0028] For further explanation, as Figure 4 shown, the box structure 2 in the above structure includes a filter box 21, an extension cabinet one 22 and an extension cabinet two 23. Among them, the filter box 21 is connected to the pyrolysis furnace body 1 and is used to provide a space for filtering the waste gas generated by the pyrolysis furnace body 1. The extension cabinet one 22 and the extension cabinet two 23 are respectively integrally connected and distributed on the front and rear sides of the filter box 21, and both the extension cabinet one 22 and the extension cabinet two 23 are connected to the filter box 21 and arranged in communication.

[0029] In order to complete the filtration of the waste gas generated by the pyrolysis furnace and without the need for shutdown operation to ensure that the pyrolysis furnace can be used normally when the filter screen one 33 needs to be cleaned, as Figures 4 - 6As shown in the figure, the filtration structure 3 in this embodiment includes a frame 31, a first filter screen 33, and a second filter screen 34. Initially, the frame 31 is located in the filtration box 21 and the second extension cabinet 23, and has two sets of stepped grooves 32. The first filter screen 33 and the second filter screen 34 are detachably arranged in the two sets of stepped grooves 32 respectively. The first filter screen 33 and the second filter screen 34 are detachably arranged in the two sets of stepped grooves 32, for example, by bolts. Initially, the first filter screen 33 is located in the filtration box 21 and is used for filtering and treating the waste gas generated by the cracking furnace body 1, while the second filter screen 34 is located in the second extension cabinet 23 and is initially isolated by the frame 31 and does not contact the waste gas. When the first filter screen 33 needs to be cleaned and the position of the first filter screen 33 is changed by moving the frame 31, the second filter screen 34 is used to undertake the subsequent filtration and treatment of the waste gas generated by the cracking furnace body 1.

[0030] It should be noted that the widths of the first extension cabinet 22, the second extension cabinet 23, and the filtration box 21 are equal. Moreover, cabinet doors 25 are hingedly arranged on the outer sides of the first extension cabinet 22 and the second extension cabinet 23, enabling the first extension cabinet 22 and the second extension cabinet 23 to be opened. At this time, the first extension cabinet 22 is the working point for removing and cleaning the first filter screen 33, and the second extension cabinet 23 is the working point for removing and cleaning the second filter screen 34.

[0031] To facilitate the position adjustment of the filtration structure 3, a displacement structure 4 designed in this embodiment is arranged on the filtration box 21 and includes a telescopic component 41 and a connecting block 42. The connecting block 42 is arranged at the telescopic end of the telescopic component 41 and is connected to the frame 31.

[0032] It should be noted that the telescopic component 41 is one of a cylinder, an electric push rod, and a hydraulic push rod. A sliding groove 24 is formed on the second extension cabinet 23. The lower part of the connecting block 42 is slidably connected to the sliding groove 24 and is fixedly connected to the frame 31. In this way, when the telescopic component 41 makes a telescopic movement and the connecting block 42 displaces, the filtration structure 3 can displace synchronously, that is, the position adjustment of the first filter screen 33 and the second filter screen 34 is realized.

[0033] Since the waste gas discharged from the cracking furnace body 1 has a high temperature, the high temperature will affect the service life of the first filter screen 33 and the second filter screen 34. To enable the filtration structure 3 to be used for a longer time, in an embodiment, as Figures 1 - 3 shown, the cracking furnace waste gas treatment device further includes a spray tower 5 and a spray assembly 6. The spray tower 5 is arranged between the filtration box 21 and the cracking furnace body 1, that is, the cracking furnace body 1, the spray tower 5, and the filtration box 21 are sequentially connected through pipelines, and the spray assembly 6 is used for spraying and dust removal of the gas flowing out from the cracking furnace body 1 and passing through the spray tower 5.

[0034] For further description of the spray assembly 6, as Figure 3As shown, the spraying assembly 6 includes a spraying frame 61, a water pump 62 and a connecting pipe 63. The spraying frame 61 is arranged in the spraying tower 5. The water inlet of the water pump 62 is communicated with a water source, such as a water pipe in the field. The connecting pipe 63 is arranged between the water outlet of the water pump 62 and the spraying frame 61.

[0035] During operation, start the water pump 62 to introduce the water source, and let the water source finally spray out from the spraying frame 61, so that the waste gas can be sprayed to reduce dust and the temperature can be reduced, thereby ensuring that the filtering structure 3 can be used for a long time.

[0036] Working principle:

[0037] Initially, the box structure 2 is a closed space. Among them, the inside of the filter box 21 is a filtering area. The first filter screen 33 undertakes the initial filtering work of the pyrolysis furnace waste gas. When the first filter screen 33 needs to be cleaned after being used for a period of time, start the telescopic member 41. Under its telescopic action, the connecting block 42 drives the filtering structure 3 to move synchronously, so that the first filter screen 33 is adjusted to the first expansion cabinet 22, and the second filter screen 34 is located in the filter box 21 at this time. During the position adjustment, the parts of the first filter screen 33 and the second filter screen 34 located in the filter box 21 can continue to undertake the filtering work. It is necessary to stop the operation to ensure that the pyrolysis furnace can be used normally when the first filter screen 33 needs to be cleaned. And when the second filter screen 34 moves to the position where the first filter screen 33 was initially located, the first filter screen 33 can be taken out from the first expansion cabinet 22 for cleaning. On the contrary, when the second filter screen 34 needs to be cleaned, the second filter screen 34 is adjusted to the second expansion cabinet 23, and the second filter screen 34 can also be taken out from the second expansion cabinet 23 for cleaning.

[0038] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cracking furnace exhaust gas treatment device, which is connected to a cracking furnace body (1), characterized in that: include: A box structure (2), comprising a filter box (21), an expansion cabinet 1 (22) and an expansion cabinet 2 (23), wherein the filter box (21) is connected to the cracking furnace body (1), and the expansion cabinet 1 (22) and the expansion cabinet 2 (23) are respectively distributed on the front and rear sides of the filter box (21); A filtering structure (3), comprising a frame (31), the frame (31) being located in the filtering box (21) and the second extension cabinet (23), and having two groups of stepped grooves (32), wherein a filter screen 1 (33) and a filter screen 2 (34) are respectively detachably arranged in the two groups of stepped grooves (32); The displacement structure (4) is arranged on the filter box (21) and comprises a telescopic component (41) and a connecting block (42), wherein the connecting block (42) is arranged at the telescopic end of the telescopic component (41) and is connected to the frame (31).

2. A cracking furnace exhaust gas treatment device according to claim 1, characterized in that: It also comprises a spray tower (5) and a spray assembly (6), wherein the spray tower (5) is arranged between the filter box (21) and the cracking furnace body (1), and the spray assembly (6) is used to spray and reduce dust on the gas flowing out of the cracking furnace body (1) and passing through the spray tower (5).

3. A cracking furnace exhaust gas treatment device according to claim 2, characterized in that: The spray assembly (6) comprises a spray rack (61), a water pump (62) and a connecting pipe (63), wherein the spray rack (61) is arranged in the spray tower (5), the water inlet of the water pump (62) is connected to a water source, and the connecting pipe (63) is arranged between the water outlet of the water pump (62) and the spray rack (61).

4. A cracking furnace exhaust gas treatment device according to any one of claims 1 to 3, characterized in that: The widths of the expansion cabinet 1 (22), the expansion cabinet 2 (23) and the filter box (21) are equal.

5. A cracking furnace exhaust gas treatment device according to claim 4, characterized in that: The second expansion cabinet (23) is provided with a slide groove (24), and the lower part of the connecting block (42) is slidably connected in the slide groove (24) and fixedly connected to the frame (31).

6. A cracking furnace exhaust gas treatment device according to claim 5, characterized in that: The filter screen 1 (33) and the filter screen 2 (34) are both detachably arranged in the two groups of stepped grooves (32) by means of bolts.

7. A cracking furnace exhaust gas treatment device according to claim 1, characterized in that: The outer sides of the expansion cabinet 1 (22) and the expansion cabinet 2 (23) are both provided with cabinet doors (25).

8. A cracking furnace exhaust gas treatment device according to claim 1, characterized in that: The telescopic component (41) is one of a cylinder, an electric push rod and a hydraulic push rod.

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