Acid mist treatment device for waste oil regeneration

Abstract

The utility model relates to waste oil treatment technical field, concretely relates to a waste oil regeneration is with acid mist processing apparatus, including processing tower, be provided with the gas inlet for conveying containing acid mist on the processing tower, the inside setting of processing tower has the liquid transfer pipe for conveying lye, be provided with multiple groups of spray structure on the liquid transfer pipe. The utility model, by setting up with the spray structure of shell, moving plate, push rod group and push rod group, make through the upward push moving plate, make push rod group enter spray opening and break, and the impurity is pushed out, reduced the phenomenon that the nozzle is blocked because of salt crystallization and oil dirt, simple, fast operation, reduced maintenance time and labour intensity, improve production efficiency, at the same time, moving plate drives the closed block and moves the closed connecting pipe, make in dredging cut off lye supply, prevent splashing, be favorable to improve the operation safety and the effect of clearing blockage.

Description

Technical Field

[0001] This utility model relates to the field of waste oil treatment technology, specifically to an acid mist treatment device for waste oil regeneration. Background Technology

[0002] In the process of waste oil regeneration, high-temperature distillation and acid refining are often used. These processes will volatilize a large amount of acidic gases containing sulfuric acid, sulfonic acid and other components, forming acid mist. If this acid mist is directly emitted, it will pollute the atmospheric environment and harm human health. Therefore, a special acid mist treatment device for waste oil regeneration is needed to purify it.

[0003] Traditional acid mist treatment devices mostly use alkaline spray neutralization, which uses a pump to deliver alkaline solution to the spray layer of the treatment tower, and sprays the alkaline solution out through nozzles, so that the acid mist comes into contact with the alkaline solution in the treatment tower to neutralize the acidic substances in the acid mist.

[0004] However, due to the tendency of alkaline solutions to form salt crystals upon reaction with acid mist, and the potential presence of small amounts of oily substances during waste oil regeneration, the spray nozzles are prone to scaling and clogging. This leads to reduced spraying efficiency, insufficient gas-liquid contact, and consequently, reduced acid mist removal efficiency. Furthermore, traditional methods require disassembling and cleaning the nozzles, followed by reinstallation, making the entire process cumbersome and time-consuming, thus impacting production efficiency. Therefore, this paper proposes an acid mist treatment device for waste oil regeneration to address these issues. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an acid mist treatment device for waste oil regeneration, which can effectively solve the problems that the spray nozzles of the spray head are prone to scaling and clogging, resulting in reduced spraying effect, insufficient gas-liquid contact, and reduced acid mist removal efficiency. Moreover, the traditional treatment method is cumbersome and time-consuming, which affects production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an acid mist treatment device for waste oil regeneration, comprising: A treatment tower is provided with an inlet for conveying gas containing acid mist, and an internal delivery pipe for conveying alkaline solution is provided inside the treatment tower. The delivery pipe is equipped with multiple sets of spray structures, the spray structures including: The outer shell and the movable plate are provided. The top of the outer shell is fixedly connected to a connecting pipe that communicates with the infusion tube. The inner wall of the outer shell is provided with a movable groove, and a slider is slidably connected in the movable groove. The slider is fixedly connected to the movable plate. Multiple spray nozzles are provided through the outer wall of the movable plate. The push rod assembly is fixedly connected to the inner cavity of the outer shell via a connecting bracket, and the push rod assembly is slidably disposed within the corresponding spray nozzle.

[0007] Preferably, a connecting rod is fixedly provided on the top of the movable plate, and a corresponding connecting groove is provided in the inner cavity of the outer shell, with the top of the connecting rod slidably connected in the connecting groove.

[0008] Preferably, a compression spring is fixedly installed inside the connecting groove, and the other end of the compression spring is fixedly connected to the connecting rod. In its natural state, the compression spring pushes the connecting rod to move away from the connecting groove.

[0009] Preferably, a sealing gasket is provided on the contact surface between the slider and the moving groove.

[0010] Preferably, a fixing rod is fixedly installed on the top of the movable plate, and a sealing block is fixedly installed on the top of the fixing rod through the connecting frame, and the sealing block is slidably connected to the inner cavity of the connecting pipe.

[0011] Preferably, the inner cavity of the treatment tower is provided with multiple layers of layered plates, and packing is placed on the layered plates. The infusion pipe is fixedly installed below the corresponding layered plate.

[0012] Preferably, the top of the processing tower is provided with an exhaust pipe for conveying the processed gas.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: In this invention, a spray structure comprising a shell, a movable plate, a push rod assembly, and the push rod assembly is provided. By pushing the movable plate upwards, the push rod assembly enters the spray nozzle to break up and push out impurities, reducing the phenomenon of nozzle blockage caused by salt crystallization and oil stains. The operation is simple and quick, reducing maintenance time and labor intensity, and improving production efficiency. At the same time, the movable plate drives the sealing block to move and seal the connecting pipe, cutting off the supply of alkaline solution during unblocking to prevent splashing, which helps to improve operational safety and unblocking effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the internal structure of the processing tower of this utility model; Figure 3 This is a schematic diagram of the spray structure of this utility model; Figure 4 This is a cross-sectional view of the outer shell structure of this utility model; Figure 5 This is a schematic diagram of the push rod assembly structure of this utility model.

[0016] Reference numerals: 1. Treatment tower; 101. Air inlet; 102. Exhaust pipe; 2. Layered plate; 3. Infusion pipe; 4. Spray structure; 401. Outer shell; 402. Connecting pipe; 403. Moving plate; 404. Spray nozzle; 405. Moving groove; 5. Push rod assembly; 501. Connecting frame; 6. Slider; 601. Sealing gasket; 602. Connecting rod; 603. Connecting groove; 604. Compression spring; 7. Sealing block; 701. Fixing rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments.

[0019] See attached document Figure 1-5 An acid mist treatment device for waste oil regeneration, comprising: The treatment tower 1 is equipped with an inlet 101 for conveying acid mist gas. The acid mist enters the treatment tower 1 through the inlet 101 and reacts with the alkaline solution conveyed from the delivery pipe 3 inside the tower. After multiple treatments, the purified gas is discharged from the exhaust pipe 102. The treatment tower 1 is equipped with a delivery pipe 3 for conveying alkaline solution. The delivery pipe 3 is equipped with multiple sets of spray structures 4, which include: The outer shell 401 and the movable plate 403 are provided. The top of the outer shell 401 is fixedly connected to the connecting pipe 402, which is connected to the infusion pipe 3. The inner wall of the outer shell 401 is provided with a movable groove 405, and a slider 6 is slidably connected in the movable groove 405. The slider 6 is fixedly connected to the movable plate 403. Multiple sets of spray nozzles 404 are provided through the outer wall of the movable plate 403. The alkaline solution enters the outer shell 401 through the connecting pipe 402 and is then sprayed out through the spray nozzles 404 on the movable plate 403. The push rod assembly 5 is fixedly connected to the inner cavity of the outer shell 401 via the connecting bracket 501. The push rod assembly 5 is slidably disposed in the corresponding spray nozzle 404. In use, by pushing the moving plate 403 upward, the spray nozzle 404 is moved upward, causing the push rod assembly 5 to enter the spray nozzle 404. The push rod assembly 5 breaks up and pushes out the crystals and impurities blocking the spray nozzle 404, thereby clearing the blockage.

[0020] A connecting rod 602 is fixedly installed on the top of the movable plate 403, and a corresponding connecting groove 603 is opened in the inner cavity of the outer shell 401. The top of the connecting rod 602 is slidably connected in the connecting groove 603, thereby restricting the moving path and moving range of the movable plate 403.

[0021] A compression spring 604 is fixedly installed inside the connecting groove 603, and the other end of the compression spring 604 is fixedly connected to the connecting rod 602. In its natural state, the compression spring 604 pushes the connecting rod 602 to move away from the connecting groove 603. When an external force pushes the moving plate 403 to move upward to clear the blockage, the connecting rod 602 compresses the compression spring 604 to store energy. When the external force is removed, the rebound force of the compression spring 604 pushes the connecting rod 602 and the moving plate 403 to automatically return to the initial spraying position.

[0022] A sealing gasket 601 is provided on the contact surface between the slider 6 and the moving groove 405 to fill the tiny gap between the slider 6 and the moving groove 405 and prevent the alkali solution from flowing out through the gap.

[0023] A fixing rod 701 is fixedly installed on the top of the movable plate 403, and a sealing block 7 is fixedly installed on the top of the fixing rod 701 through the connecting frame 501. The sealing block 7 is slidably connected to the inner cavity of the connecting pipe 402. When the movable plate 403 is pushed upward, the fixing rod 701 simultaneously drives the sealing block 7 to move upward, so that it is inserted into the channel of the connecting pipe 402 to form a seal and prevent the alkali solution from continuing to enter the interior of the outer shell 401.

[0024] The treatment tower 1 has multiple layers of layered plates 2 inside, dividing the tower space into multiple treatment zones to achieve multi-stage purification, increase the contact area and contact time between acid mist and alkaline solution, and improve the acid mist treatment effect. Packing material is placed on the layered plates 2. When the gas passes through the packing layer, the path becomes tortuous, greatly increasing the contact time and area with the alkaline solution film attached to the surface of the packing material, resulting in a more thorough neutralization reaction. The delivery pipe 3 is fixedly installed below the corresponding layered plate 2. During use, as the acid mist rises in the treatment tower 1, it passes through each layered plate 2 in sequence, making full contact with the packing material on the layered plates 2. At the same time, alkaline solution is sprayed onto the packing material, and the acid mist and alkaline solution react on the surface of the packing material, thereby improving the purification efficiency.

[0025] The top of the treatment tower 1 is equipped with an exhaust pipe 102 for conveying the treated gas. When the acid mist reacts fully with the alkaline solution in the treatment tower 1 and the acidic substances are neutralized, the purified gas is conveyed out through the exhaust pipe 102 under the pressure inside the tower.

[0026] Working principle: In use, by pushing the moving plate 403 upward, the slider 6 slides along the moving groove 405. During the movement, the spray nozzles 404 on the moving plate 403 rise accordingly, causing the push rod assembly 5, originally located below it, to penetrate into the spray nozzles 404, breaking up and pushing out the salt crystals and oily impurities blocking the holes, thus achieving online unblocking. At the same time, the sealing block 7, which is connected to the moving plate 403 via the fixed rod 701, moves upward synchronously and partially embeds into the flow channel of the connecting pipe 402, forming a temporary sealing block. The seal prevents the alkaline solution from continuing to enter the outer casing 401, thus preventing liquid splashing during the unblocking process and improving the unblocking effect. After the unblocking action is completed, the upward-pressed moving plate 403 is released, the spring 604 is squeezed to release the elastic potential energy, and the connecting rod 602 is pushed down, which drives the moving plate 403 and the sealing block 7 to return to the initial position. The spray nozzle 404 is separated from the push rod assembly 5, the connecting pipe 402 is restored to unobstructed flow, and the alkaline solution flows back into the outer casing 401 through the connecting pipe 402 and is sprayed out normally through the spray nozzle 404. During use, the waste gas containing acid mist enters the tower from the inlet 101 at the bottom of the treatment tower 1 and flows upward. The alkaline solution is transported to the spray structure 4 of each layer through the delivery pipe 3 and is evenly sprayed on the packing surface of the corresponding layer plate 2. As the acid mist gas rises, it passes through multiple layers of layer plate 2 in sequence. Its flow path becomes tortuous due to the packing layer, so that it can fully contact and react with the alkaline liquid film attached to the surface of the packing, thereby achieving multi-stage purification. The purified gas after the neutralization reaction continues to rise and is finally discharged from the exhaust pipe 102 at the top of the treatment tower 1 in compliance with the standards.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An acid mist treatment device for waste oil regeneration, comprising a treatment tower (1), wherein the treatment tower (1) is provided with an inlet (101) for conveying gas containing acid mist, characterized in that, The processing tower (1) is equipped with a delivery pipe (3) for conveying alkaline solution. The delivery pipe (3) is equipped with multiple sets of spray structures (4). The spray structures (4) include: The outer shell (401) and the movable plate (403) are provided. The top of the outer shell (401) is fixedly connected to a connecting pipe (402) that communicates with the infusion tube (3). The inner wall of the outer shell (401) is provided with a movable groove (405), and a slider (6) is slidably connected in the movable groove (405). The slider (6) is fixedly connected to the movable plate (403). The outer wall of the movable plate (403) is provided with multiple sets of spray nozzles (404). The push rod assembly (5) is fixedly connected to the inner cavity of the outer shell (401) via a connecting bracket (501), and the push rod assembly (5) is slidably disposed in the corresponding spray nozzle (404).

2. The acid mist treatment device for waste oil regeneration according to claim 1, characterized in that, A connecting rod (602) is fixedly installed on the top of the movable plate (403), and a corresponding connecting groove (603) is opened in the inner cavity of the outer shell (401), and the top of the connecting rod (602) is slidably connected in the connecting groove (603).

3. The acid mist treatment device for waste oil regeneration according to claim 2, characterized in that, A compression spring (604) is fixedly installed in the inner cavity of the connecting groove (603), and the other end of the compression spring (604) is fixedly connected to the connecting rod (602). In the natural state, the compression spring (604) pushes the connecting rod (602) to move away from the connecting groove (603).

4. The acid mist treatment device for waste oil regeneration according to claim 1, characterized in that, A sealing gasket (601) is provided on the contact surface between the slider (6) and the moving groove (405).

5. The acid mist treatment device for waste oil regeneration according to claim 1, characterized in that, A fixing rod (701) is fixedly installed on the top of the movable plate (403), and a sealing block (7) is fixedly installed on the top of the fixing rod (701) through the connecting frame (501). The sealing block (7) is slidably connected to the inner cavity of the connecting pipe (402).

6. The acid mist treatment device for waste oil regeneration according to claim 1, characterized in that, The processing tower (1) has multiple layers of layered plates (2) inside, and packing is placed on the layered plates (2). The infusion pipe (3) is fixedly installed below the corresponding layered plate (2).

7. The acid mist treatment device for waste oil regeneration according to claim 6, characterized in that, The top of the processing tower (1) is provided with an exhaust pipe (102) for conveying the processed gas.

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