Petrochemical waste gas treatment device

Abstract

The petrochemical waste gas treatment device comprises a waste gas treatment box which is transversely arranged, a gas inlet pipe is mounted on the left side of the waste gas treatment box, a gas outlet pipe is mounted on the right side of the waste gas treatment box, and a front treatment layer, a middle treatment layer and a rear treatment layer are sequentially mounted in the waste gas treatment box from left to right; transverse flow equalizing plates which are transversely arranged are correspondingly mounted between the front treatment layer and the middle treatment layer as well as between the middle treatment layer and the rear treatment layer, are uniformly arranged at intervals from top to bottom, and are of triangular structures of which the middle parts are upwards raised; and the two sides of the transverse flow equalizing plate are correspondingly fixed on the treatment layer. According to the utility model, the transverse flow equalizing plate and the vertical flow equalizing plate are arranged, so that flue gas can be equalized by the transverse flow equalizing plate and the vertical flow equalizing plate after entering the waste gas treatment box; according to the utility model, three treatment layers are arranged, and different treatment media are arranged on each treatment layer to treat flue gas, so that the treatment quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment in petrochemical operations, in particular to a petrochemical waste gas treatment device. Background Art

[0002] In the existing technology, a lot of waste gas is generated in petrochemical production. Usually, these waste gases cannot be directly discharged into the external environment and need to be treated in a certain way before they can be discharged into the air. There are many ways to treat petrochemical waste gas in the existing technology.

[0003] For example: the "petrochemical waste gas treatment device" disclosed in the publication (announcement) number: CN211753570U can effectively improve the waste gas purification effect and improve the functional diversity of the equipment by purifying the waste gas. At the same time, the particulate matter in the waste gas is separated and purified, effectively improving the waste gas purification effect, effectively reducing the blockage of the equipment by particulate matter, improving the equipment's working efficiency, and improving practicality and reliability; it includes a purification chamber, two sets of legs, an air intake pipe, a support plate, a filter barrel and a motor base, and the two sets of legs and the air intake pipe are all installed on the purification chamber.

[0004] For example, the "petrochemical waste gas treatment device" disclosed in Publication (Announcement) No. CN215352686U includes a device body, a first partition plate is provided in the device body; two obliquely arranged baffles are also provided in the device body, the baffles and the lower end of the first baffle plate form an air passage, the two baffles are both rotatable, and when the upper ends of the two baffles are tightly abutted against each other, the lower ends respectively form a seal with the lower end surface of the device body, and when the upper ends are separated, a material passage is formed between the lower ends and the lower end surface of the device body, and the lower end of the device body is provided with a discharge port connected to the material passage. The utility model can effectively increase the residence time of the exhaust gas inside the cooling mechanism, realize the effective regulation of the exhaust gas temperature, and realize the effective discharge of particulate matter dropped after the exhaust gas is sprayed.

[0005] The above technical solution is mainly for removing particulate matter from exhaust gas, and the removal of particulate matter is mainly achieved by filtering and adsorbing the exhaust gas through filter layers, adsorption layers, adsorption fillers, etc. However, after a long period of exhaust gas treatment, some treatment components such as activated carbon adsorption nets and high carbon fiber catalytic nets will definitely be contaminated with a large number of exhaust gas particles, and the various treatment layers set inside are not easy to clean, which will greatly affect the treatment efficiency and quality over time.

[0006] Therefore, in order to solve the above problems, it is necessary to develop a petrochemical waste gas treatment device that improves treatment efficiency and treatment quality. Utility Model Content

[0007] The purpose of this utility model is to provide a petrochemical waste gas treatment device to address the shortcomings of the existing technology; its technical solution is as follows:

[0008] A petrochemical waste gas treatment device includes a horizontally placed waste gas treatment box, an air inlet pipe is installed on the left side of the waste gas treatment box, an air outlet pipe is installed on the right side, and a pre-treatment layer, an intermediate treatment layer and a post-treatment layer are installed in the waste gas treatment box from left to right;

[0009] A horizontally arranged horizontal equalizing plate is installed between the pre-processing layer and the intermediate processing layer, as well as between the intermediate processing layer and the post-processing layer. The horizontal equalizing plates are evenly spaced from top to bottom, and are each arranged in a triangular structure with an upward protrusion in the middle, and the two sides of the horizontal equalizing plate are correspondingly fixed on the processing layer;

[0010] A vertical pipe is installed between the pre-treatment layer and the intermediate treatment layer, and between the intermediate treatment layer and the post-treatment layer. The vertical pipe extends downward from the upper end of the exhaust gas treatment box, and the extension position is located at the triangular tip of the horizontal equalizing plate. The lower end of the vertical pipe is fixed to the horizontal equalizing plate of the lowest layer.

[0011] In addition, spray ports are provided on both sides of the vertical pipe, and the positions of the spray ports on both sides correspond to the treatment layers on both sides. A cleaning box is provided outside the exhaust gas treatment box. The cleaning box is connected to the vertical pipe in the exhaust gas treatment box through a pump body and an external pipe, and the cleaning liquid in the cleaning box is sent into the vertical pipe and sprayed out through the spray ports.

[0012] Furthermore, the pre-treatment layer, intermediate treatment layer and post-treatment layer all include a plurality of vertical equalizing plates arranged vertically, and treatment media are correspondingly arranged between the vertical equalizing plates of each treatment layer, and the incoming ship exhaust gas is treated accordingly through the treatment media.

[0013] Furthermore, there are four horizontal flow equalizing plates at the same position, which are evenly spaced up and down, and each horizontal flow equalizing plate passes through three vertical pipes; and there are two vertical flow equalizing plates in the same processing layer, which are evenly spaced, and the two side ends of each horizontal flow equalizing plate are fixed on the vertical flow equalizing plates on both sides, thereby fixing the horizontal flow equalizing plates.

[0014] Furthermore, the treatment medium in the pre-treatment layer is set as a filter mesh woven from metal wire and plastic wire; the treatment medium in the intermediate treatment layer is set as a ceramic honeycomb carrier; and the treatment medium in the post-treatment layer is set as an activated carbon adsorption block. The three treatment media are correspondingly arranged between adjacent vertical flow equalizing plates and between the vertical flow equalizing plates and the side walls of the exhaust gas treatment box.

[0015] Furthermore, a water collecting shell is provided at the lower end of the exhaust gas treatment box, and the lower end of the vertical flow equalizing plate passes through the bottom of the exhaust gas treatment box and extends into the water collecting shell and is fixed correspondingly to the bottom of the water collecting shell. Accordingly, the treatment medium of each treatment layer also extends downward to the bottom of the water collecting shell. The cleaning liquid sprayed from the vertical pipe flows to the treatment layer under the guidance of the horizontal flow equalizing plate, cleans the treatment layer, and finally flows into the water collecting shell.

[0016] Furthermore, the length of the water collection shell is set to cover three treatment layers, and a water collection pipe is also installed on the water collection shell.

[0017] Beneficial effects: The utility model has the following beneficial effects:

[0018] 1) The utility model is provided with a horizontal flow equalizing plate and a vertical flow equalizing plate. After the flue gas enters the exhaust gas treatment box, it will be evenly distributed by the horizontal flow equalizing plate and the vertical flow equalizing plate, thereby improving the treatment effect and efficiency of the flue gas;

[0019] 2) The utility model is provided with three treatment layers, and each treatment layer is provided with a different treatment medium to treat the flue gas, thereby improving the treatment quality;

[0020] 3) The horizontal and vertical flow equalizing plates in the present invention not only have a flow equalizing effect, but also can be used to install vertical pipes corresponding to the horizontal and vertical flow equalizing plates. The vertical pipes can be injected with cleaning liquid through the pump body and the exhaust gas treatment box. The spray ports on both sides of the vertical pipes can spray cleaning liquid to clean the treatment media on both sides. The horizontal flow equalizing plates are raised triangular structures that can cooperate with the cleaning liquid to complete the cleaning of the cleaning medium. The structural setting is ingenious and reasonable.

[0021] 4) The utility model also provides a water collecting shell, and the vertical flow equalizing plate is correspondingly extended into the water collecting shell. At the same time, the treatment medium is arranged in the water collecting shell. The water collecting shell can collect the cleaning liquid accordingly, and at the same time it can ensure that the flue gas entering the water collecting shell is also processed by the three treatment layers, and no air leakage will occur. The structural setting is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of Example 1 of the utility model;

[0023] Figure 2 for Figure 1 Middle A-direction view;

[0024] Figure 3 for Figure 1 Middle B-direction view;

[0025] Figure 4 This is a structural diagram of Example 2 of the utility model;

[0026] Figure 5 for Figure 4 Center C view. DETAILED DESCRIPTION

[0027] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] Example 1

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, a petrochemical waste gas treatment device of this embodiment includes a horizontally placed waste gas treatment box 1, an air inlet pipe 2 is installed on the left side of the waste gas treatment box 1, an air outlet pipe 3 is installed on the right side, and a pre-treatment layer 4, an intermediate treatment layer 5 and a post-treatment layer 6 are installed in the waste gas treatment box 1 from left to right.

[0030] In this embodiment, transverse equalizing plates 7 are installed between the pre-processing layer 4 and the intermediate processing layer 5, and between the intermediate processing layer 5 and the post-processing layer 6. The transverse equalizing plates 7 of this embodiment are evenly spaced from top to bottom, and the transverse equalizing plates 7 of this embodiment are all arranged in a triangular structure with an upward protrusion in the middle, and the two sides of the transverse equalizing plates 7 are fixed on the processing layer accordingly;

[0031] In this embodiment, a vertical pipe 8 is further installed between the pre-treatment layer 4 and the intermediate treatment layer 5, and between the intermediate treatment layer 5 and the post-treatment layer 6. The vertical pipe 8 of this embodiment extends downward from the upper end of the exhaust gas treatment box 1, and the extension position is located at the triangular tip of the horizontal equalizing plate 7. The lower end of the vertical pipe 8 is correspondingly fixed on the horizontal equalizing plate 7 of the lowest layer;

[0032] In addition, spray ports 9 are provided on both sides of the vertical pipe 8 of this embodiment, and the positions of the spray ports 9 on both sides correspond to the treatment layers on both sides. A cleaning box 10 is provided outside the exhaust gas treatment box 1. The cleaning box 10 is connected to the vertical pipe 8 in the exhaust gas treatment box 1 through a pump body 11 and an external pipe, and the cleaning liquid in the cleaning box 10 is sent into the vertical pipe 8 and sprayed out through the spray port 9.

[0033] The pre-treatment layer 4, the intermediate treatment layer 5 and the post-treatment layer 6 of this embodiment all include a plurality of vertical equalizing plates 12 arranged vertically, and treatment media 13 are correspondingly arranged between the vertical equalizing plates 12 of each treatment layer, and the incoming ship exhaust gas is treated accordingly through the treatment medium 13.

[0034] There are four horizontal equalizing plates 7 at the same position, which are evenly spaced up and down, and each horizontal equalizing plate 7 passes through three vertical pipes 8; and there are two vertical equalizing plates 12 in the same processing layer, which are evenly spaced, and the two side ends of each horizontal equalizing plate 7 are fixed on the vertical equalizing plates 12 on both sides, so that the horizontal equalizing plates 7 are fixed.

[0035] In this embodiment, the treatment medium 13 in the pre-treatment layer 4 is set as a filter mesh woven from metal wire and plastic wire; in this embodiment, the treatment medium 13 in the middle treatment layer 5 is set as a ceramic honeycomb carrier; and the treatment medium 13 in the post-treatment layer 6 is set as an activated carbon adsorption block. The three treatment media 13 are correspondingly arranged between adjacent vertical flow equalizing plates 12 and between the vertical flow equalizing plates 12 and the side walls of the exhaust gas treatment box 1.

[0036] The working principle of the technical solution of this embodiment is as follows: first, the flue gas entering from the air inlet will pass through the pre-treatment layer, which is divided into three areas by two vertical flow equalizing plates, and the three areas are all equipped with treatment media through the vertical flow equalizing plates. After passing through the three areas, the flue gas is treated by the treatment medium, and then the flue gas enters the area between the pre-treatment layer and the intermediate treatment layer, where a horizontal flow equalizing plate is provided.

[0037] After the flue gas passes through the pre-treatment layer, it is further separated by horizontal equalization under the action of the horizontal equalization plate, and then passes through the intermediate treatment layer. After that, it passes through the area separated by the established horizontal equalization plate and vertical equalization plate and reaches the post-treatment layer. After being processed by the post-treatment layer, it is discharged from the outlet pipe. The overall treatment process is separated and equalized by the horizontal equalization plate and the vertical equalization plate, which can effectively improve the oil fume treatment effect.

[0038] In this embodiment, the vertical flow equalizing plates and the horizontal flow equalizing plates not only have the effect of flue gas separation and equalization, but can also be installed in conjunction with the cleaning structure; the upper and lower sides of the vertical flow equalizing plates can be installed correspondingly at the upper and lower ends of the exhaust gas treatment box, while the horizontal flow equalizing plates can be installed correspondingly on the vertical flow equalizing plates on both sides. After this arrangement, the installation of the horizontal flow equalizing plates and the vertical flow equalizing plates is very stable.

[0039] The vertical pipe can just pass through the vertical flow equalizing plate and be installed inside the exhaust gas treatment box through the vertical flow equalizing plate. The outside of the vertical pipe is connected to the exhaust gas treatment box. When cleaning is needed, the pump body extracts the cleaning liquid in the exhaust gas treatment box and sends it into the vertical pipe. The cleaning liquid is sprayed out from the spray port of each layer of the vertical pipe, and it is sprayed into the treatment layers on both sides. Since the horizontal flow equalizing plate is set to a raised triangular structure, the falling cleaning liquid flows from both sides to the treatment layer to clean the treatment medium, which can not only equalize the flow, but also clean the treatment layer.

[0040] Example 2

[0041] like Figure 4 and Figure 5 As shown, a petrochemical waste gas treatment device of this embodiment includes a horizontally placed waste gas treatment box 1, an air inlet pipe 2 is installed on the left side of the waste gas treatment box 1, an air outlet pipe 3 is installed on the right side, and a pre-treatment layer 4, an intermediate treatment layer 5 and a post-treatment layer 6 are installed in the waste gas treatment box 1 from left to right.

[0042] In this embodiment, transverse equalizing plates 7 are installed between the pre-processing layer 4 and the intermediate processing layer 5, and between the intermediate processing layer 5 and the post-processing layer 6. The transverse equalizing plates 7 of this embodiment are evenly spaced from top to bottom, and the transverse equalizing plates 7 of this embodiment are all arranged in a triangular structure with an upward protrusion in the middle, and the two sides of the transverse equalizing plates 7 are fixed on the processing layer accordingly;

[0043] In this embodiment, a vertical pipe 8 is further installed between the pre-treatment layer 4 and the intermediate treatment layer 5, and between the intermediate treatment layer 5 and the post-treatment layer 6. The vertical pipe 8 of this embodiment extends downward from the upper end of the exhaust gas treatment box 1, and the extension position is located at the triangular tip of the horizontal equalizing plate 7. The lower end of the vertical pipe 8 is correspondingly fixed on the horizontal equalizing plate 7 of the lowest layer;

[0044] In addition, spray ports 9 are provided on both sides of the vertical pipe 8 of this embodiment, and the positions of the spray ports 9 on both sides correspond to the treatment layers on both sides. A cleaning box 10 is provided outside the exhaust gas treatment box 1. The cleaning box 10 is connected to the vertical pipe 8 in the exhaust gas treatment box 1 through a pump body 11 and an external pipe, and the cleaning liquid in the cleaning box 10 is sent into the vertical pipe 8 and sprayed out through the spray port 9.

[0045] The pre-treatment layer 4, the intermediate treatment layer 5 and the post-treatment layer 6 of this embodiment all include a plurality of vertical equalizing plates 12 arranged vertically, and treatment media 13 are correspondingly arranged between the vertical equalizing plates 12 of each treatment layer, and the incoming ship exhaust gas is treated accordingly through the treatment medium 13.

[0046] There are four horizontal equalizing plates 7 at the same position, which are evenly spaced up and down, and each horizontal equalizing plate 7 passes through three vertical pipes 8; and there are two vertical equalizing plates 12 in the same processing layer, which are evenly spaced, and the two side ends of each horizontal equalizing plate 7 are fixed on the vertical equalizing plates 12 on both sides, so that the horizontal equalizing plates 7 are fixed.

[0047] In this embodiment, the treatment medium 13 in the pre-treatment layer 4 is set as a filter mesh woven from metal wire and plastic wire; in this embodiment, the treatment medium 13 in the middle treatment layer 5 is set as a ceramic honeycomb carrier; and the treatment medium 13 in the post-treatment layer 6 is set as an activated carbon adsorption block. The three treatment media 13 are correspondingly arranged between adjacent vertical flow equalizing plates 12 and between the vertical flow equalizing plates 12 and the side walls of the exhaust gas treatment box 1.

[0048] In this embodiment, a water collecting shell 14 is also provided at the lower end of the exhaust gas treatment box 1, and the lower end of the vertical flow equalizing plate 12 of this embodiment passes through the bottom of the exhaust gas treatment box 1 and extends into the water collecting shell 14 and is fixed to the bottom of the water collecting shell 14. Correspondingly, the treatment medium 13 of each treatment layer also extends downward to the bottom of the water collecting shell 14. The cleaning liquid sprayed from the vertical pipe 8 flows to the treatment layer under the guidance of the horizontal flow equalizing plate 7, cleans the treatment layer, and finally flows into the water collecting shell 14.

[0049] The length of the water collecting shell 14 of this embodiment is set to cover three treatment layers, and the water collecting pipe 15 is also installed on the water collecting shell 14 of this embodiment.

[0050] This embodiment is based on the technical solution of Example 1 and provides a water outlet mechanism. In the technical solution of Example 1, after the cleaning liquid cleans the treatment layer, the cleaning liquid flows downward from the treatment layer. This embodiment directly provides a water collecting shell at the lower end of the exhaust gas treatment box, and the vertical flow equalizing plate is also correspondingly extended into the water collecting shell at the lower end. At the same time, the installed treatment medium is also extended into the water collecting shell. Then, after the cleaning liquid is sprayed out from the vertical pipe and the treatment layer is cleaned with the cooperation of the horizontal flow equalizing plate, the cleaning liquid naturally flows along the treatment layer into the water collecting shell below, and then can be discharged through the water collecting pipe.

[0051] Furthermore, in the structure of this embodiment, even if the smoke entering from the front enters the water collecting shell below, it will also be processed by the three processing layers, and the structural setting is ingenious and reasonable.

[0052] The above specific implementation method is only a preferred embodiment of the present invention and is not intended to limit the implementation and scope of the claims of the present invention. All equivalent changes and modifications made based on the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A petrochemical waste gas treatment device, characterized by: The invention comprises a waste gas treatment box (1) placed horizontally, wherein an air inlet pipe (2) is installed on the left side of the waste gas treatment box (1), an air outlet pipe (3) is installed on the right side, and a pre-treatment layer (4), an intermediate treatment layer (5) and a post-treatment layer (6) are installed in sequence from left to right in the waste gas treatment box (1); A transversely arranged transverse flow balancing plate (7) is correspondingly installed between the pre-processing layer (4) and the intermediate processing layer (5), and between the intermediate processing layer (5) and the post-processing layer (6). The transverse flow balancing plates (7) are evenly spaced from top to bottom, and the transverse flow balancing plates (7) are all arranged in a triangular structure with a middle portion protruding upward, and both sides of the transverse flow balancing plates (7) are correspondingly fixed on the processing layer; A vertical pipe (8) is also installed between the pre-treatment layer (4) and the intermediate treatment layer (5), and between the intermediate treatment layer (5) and the post-treatment layer (6). The vertical pipe (8) extends downward from the upper end of the exhaust gas treatment box (1), and the extension position is located at the triangular tip of the horizontal flow equalizing plate (7). The lower end of the vertical pipe (8) is correspondingly fixed on the horizontal flow equalizing plate (7) of the lowest layer; Furthermore, spray ports (9) are provided on both sides of the vertical pipe (8), and the positions of the spray ports (9) on both sides correspond to the treatment layers on both sides. A cleaning box (10) is provided outside the waste gas treatment box (1), and the cleaning box (10) is connected to the vertical pipe (8) in the waste gas treatment box (1) through a pump body (11) and an external pipe, and the cleaning liquid in the cleaning box (10) is sent into the vertical pipe (8) and sprayed out through the spray ports (9).

2. A petrochemical waste gas treatment device according to claim 1, characterized in that: The pre-treatment layer (4), the intermediate treatment layer (5) and the post-treatment layer (6) all include a plurality of vertical equalizing plates (12) arranged vertically, and a treatment medium (13) is correspondingly arranged between the vertical equalizing plates (12) of each treatment layer, and the incoming ship exhaust gas is correspondingly treated by the treatment medium (13).

3. A petrochemical waste gas treatment device according to claim 2, characterized in that: Four horizontal equalizing plates (7) are provided at the same position with even spacing between the upper and lower parts, and each horizontal equalizing plate (7) passes through three vertical pipes (8); and two vertical equalizing plates (12) are provided in the same processing layer with even spacing between the upper and lower parts, and the two side ends of each horizontal equalizing plate (7) are fixed to the vertical equalizing plates (12) on both sides, thereby fixing the horizontal equalizing plates (7).

4. A petrochemical waste gas treatment device according to claim 2, characterized in that: The treatment medium (13) in the pre-treatment layer (4) is configured as a filter mesh woven from metal wires and plastic wires; the treatment medium (13) in the intermediate treatment layer (5) is configured as a ceramic honeycomb carrier; and the treatment medium (13) in the post-treatment layer (6) is configured as an activated carbon adsorption block. The three treatment media (13) are correspondingly arranged between adjacent vertical equalizing plates (12) and between the vertical equalizing plates (12) and the side walls of the exhaust gas treatment box (1).

5. The petrochemical waste gas treatment device according to claim 2, characterized in that: The lower end of the exhaust gas treatment box (1) is also provided with a water collecting shell (14), and the lower end of the vertical equalizing plate (12) passes through the bottom of the exhaust gas treatment box (1) and extends into the water collecting shell (14) and is fixed to the bottom of the water collecting shell (14). Accordingly, the treatment medium (13) of each treatment layer also extends downward to the bottom of the water collecting shell (14). The cleaning liquid sprayed from the vertical pipe (8) flows to the treatment layer under the guidance of the horizontal equalizing plate (7), cleans the treatment layer, and finally flows into the water collecting shell (14).

6. The petrochemical waste gas treatment device according to claim 5, characterized in that: The length of the water collection shell (14) is set to cover three treatment layers, and a water collection pipe (15) is also installed on the water collection shell (14).

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