Oil sludge thermal cracking tail gas treatment device

Abstract

The utility model relates to the technical field of oil sludge thermal cracking, and discloses an oil sludge thermal cracking tail gas treatment device which comprises a catalysis tank, and a heating sleeve is fixedly connected to the outer ring surface of the catalysis tank. In the oil sludge thermal cracking tail gas treatment device, tail gas can be primarily treated through a filter screen and an adsorption core II, and one side of the filter screen is scraped through a scraper; dust accumulation on the surface of the filter screen can be reduced, dust collection is facilitated, the reaction temperature in the catalytic tank can be adjusted through the heating sleeve, then catalytic reaction in the catalytic tank is assisted, denitration treatment on tail gas is achieved, the content of harmful substances in the tail gas is reduced, and the influence on air quality is reduced. The baffle plate can be used for buffering entering gas, so that the gas is in full contact with the filter plate and the adsorption core I, the gas is filtered and adsorbed again, water vapor and peculiar smell residues in the gas after denitration can be reduced, and the waste gas treatment effect is further improved.

Description

Technical Field

[0001] The utility model application relates to the technical field of oil sludge thermal cracking, in particular to an oil sludge thermal cracking tail gas treatment device. Background Art

[0002] Oil sludge thermal cracking, also known as dry distillation, thermal decomposition or carbonization, is a process in which organic matter is heated under slightly positive pressure and oxygen-deficient conditions to cause cracking and condensation reactions, and convert a large amount of hydrocarbons into gas, pyrolysis oil, pyrolysis water and residue.

[0003] When using the above technology, it was found that the following technical problems exist in the existing technology: a large amount of tail gas will be produced during the thermal cracking of oil sludge. The tail gas contains nitrogen, methane, hydrogen and carbon dioxide. The composition of the tail gas is relatively diverse. After only dust removal and desulfurization treatment, there are still a lot of nitrogen oxides remaining in the flue gas. Direct emission will affect the air quality. For this reason, we designed an oil sludge thermal cracking tail gas treatment device to provide another technical solution to the above technical problems. Summary of the Invention

[0004] In order to solve the problem that the exhaust gas has diverse components and a large amount of nitrogen oxides remain in the flue gas after only dust removal and desulfurization treatment, and direct emission will affect the air quality, the utility model provides an oil sludge thermal cracking exhaust gas treatment device to solve the above problem.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A sludge thermal cracking tail gas treatment device comprises a catalytic tank, the outer ring surface of the catalytic tank is fixedly connected to a heating jacket, the outer ring surface of the heating jacket is fixedly connected to a heating pipe, a plurality of heating wires are fixedly connected to the inside of the heating pipe, an auxiliary pipe is inserted through the top of the catalytic tank, one end of the auxiliary pipe is fixedly connected to a treatment tank, the outer ring surface of the treatment tank is fixedly connected to a bracket, one end of the treatment tank is fixedly connected to an air intake pipe, and the inner wall of the treatment tank is clamped and connected to an adsorption core 2, a filter is provided on one side of the adsorption core 2, the filter is clamped and connected to the inner wall of the treatment tank, a scraper is rotatably connected to one side of the scraper, the output shaft of the motor is fixedly connected to one side of the motor, a mounting bracket is fixedly connected to one side of the motor, and one side of the mounting bracket is fixedly connected to the inner wall of the treatment tank, and a dust collecting box is clamped at the bottom of the treatment tank.

[0007] As a preferred embodiment of the oil sludge thermal cracking tail gas treatment device provided by the utility model, the top of the catalytic tank is fixedly connected with a connecting pipe, and one end of the connecting pipe is fixedly connected with a guide pipe.

[0008] As a preferred implementation form of the oil sludge thermal cracking tail gas treatment device, the gas pump is fixedly connected with the treatment box.

[0009] As a preferred implementation form of the oil sludge thermal cracking tail gas treatment device, the exhaust port of the gas pump is fixedly communicated with the treatment box, and the treatment box is fixedly communicated with an exhaust pipe.

[0010] As a preferred implementation form of the oil sludge thermal cracking tail gas treatment device, the treatment box is provided with a sealing plate on the top, and the sealing plate is provided with an adsorption core one on the bottom.

[0011] As a preferred implementation form of the oil sludge thermal cracking tail gas treatment device, the adsorption core one is provided with a filter plate on one side, and the filter plate is connected with the bottom of the inner cavity of the treatment box.

[0012] As a preferred implementation form of the oil sludge thermal cracking tail gas treatment device, the baffle plate is fixedly connected with a support plate on one side, and the support plate is connected with the inner wall of the treatment box.

[0013] Meanwhile, through the above technical scheme, the oil sludge thermal cracking tail gas treatment device has at least the following beneficial effects:

[0014] 1. The filter screen and the adsorption core two can preliminarily treat the tail gas, the filter screen one side can be scraped by the scraper, the accumulation of dust on the surface of the filter screen can be reduced, the dust can be collected, the reaction temperature in the catalytic tank can be adjusted by the heating jacket, the catalytic reaction in the catalytic tank can be assisted, the denitration treatment of the tail gas can be realized, the harmful substance content in the waste gas can be reduced, and the influence on the air quality during emission can be reduced.

[0015] 2. The gas pump and the flow guide pipe can guide the gas flow in the catalytic tank, the baffle plate can buffer the entering gas, the gas can be fully contacted with the filter plate and the adsorption core one, the gas can be filtered and adsorbed again, the water vapor and odor residues in the gas after denitration can be reduced, and the treatment effect of the waste gas can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the tail gas treatment device of the present application.

[0018] Figure 2 It is a schematic diagram of the internal structure of the treatment box of the present application.

[0019] Figure 3 It is a schematic diagram of the installation of the heating pipe structure of the present application.

[0020] Figure 4 It is a schematic diagram of the structure section of the treatment tank of the present application.

[0021] Figure 5 It is a schematic diagram of the installation of the motor structure of the present application.

[0022] In the figure: 1, treatment tank; 2, catalytic tank; 3, heating jacket; 4, treatment box; 5, flow guide pipe; 6, connecting pipe; 7, baffle; 8, filter plate; 9, adsorption core I; 10, support; 11, auxiliary pipe; 12, heating pipe; 13, adsorption core II; 14, filter screen; 15, mounting frame; 16, air inlet pipe; 17, dust collecting box; 18, scraper; 19, motor; 20, air pump. DETAILED DESCRIPTION

[0023] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the following described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] REFERENCE Figures 1-5The utility model relates to an oil sludge pyrolysis tail gas treatment device, including catalytic tank 2, catalytic tank 2 outer ring surface fixedly connected with heating jacket 3, heating jacket 3 outer ring surface fixedly connected with heating pipe 12, heating pipe 12 inside fixedly connected with a plurality of heating wires, catalytic tank 2 top is inserted through and is equipped with auxiliary pipe 11, auxiliary pipe 11 one end fixedly communicated with treatment tank 1, treatment tank 1 outer ring surface fixedly connected with support 10, treatment tank 1 one end fixedly communicated with air inlet pipe 16, and treatment tank 1 inner wall is engagedly connected with adsorption core two 13, adsorption core two 13 one side is provided with filter screen 14, and filter screen 14 and treatment tank 1 inner wall are engagedly connected, and filter screen 14 one side is rotatably connected with scraper 18, and scraper 18 one side is fixedly connected with the output shaft of motor 19, and motor 19 one side is fixedly connected with mounting bracket 15, and mounting bracket 15 one side is fixedly connected with the inner wall of treatment tank 1, and treatment tank 1 bottom is engaged with dust collecting box 17;

[0025] Specifically, the heating jacket 3 can assist the stable installation and use of the heating pipe 12, the heating pipe 12 and the heating jacket 3 can adjust the temperature inside the catalytic tank 2, thereby assisting the catalytic reaction inside the catalytic tank 2, ensuring the denitration effect of the tail gas, the auxiliary pipe 11 can send the gas treated by the treatment tank 1 into the catalytic tank 2, guiding the flow of the gas, the support 10 can support the treatment tank 1, thereby improving the stability of the treatment tank 1 during use, the filter screen 14 can realize the preliminary filtration of the gas, the adsorption core two 13 can realize the adsorption of the gas, the air inlet pipe 16 can send the gas after desulfurization into the treatment tank 1, the mounting bracket 15 can reinforce the installation of the motor 19, ensuring the stable installation and use of the motor 19 inside the treatment tank 1, the motor 19 can provide power for the rotation of the scraper 18, thereby using the rotation of the scraper 18 to scrape and clean the side of the filter screen 14, and the scraped dust can enter the dust collecting box 17 for collection, facilitating the centralized removal of the dust;

[0026] Further, the catalytic tank 2 top is fixedly communicated with the connecting pipe 6, the connecting pipe 6 one end is fixedly communicated with the flow guide pipe 5, the flow guide pipe 5 one end is fixedly communicated with the air pump 20, the air pump 20 one side is fixedly connected with the treatment box 4, the air pump 20 exhaust port is fixedly communicated with the treatment box 4, the treatment box 4 one side is fixedly communicated with the exhaust pipe, the treatment box 4 top is engaged with the sealing plate, the sealing plate bottom is engaged with the adsorption core one 9, the adsorption core one 9 bottom is engagedly connected with the bottom of the treatment box 4 inner chamber, the adsorption core one 9 one side is provided with the filter plate 8, and the filter plate 8 bottom is engagedly connected with the bottom of the treatment box 4 inner chamber, and the filter plate 8 one side is overlapped with the baffle plate 7, the baffle plate 7 one side is fixedly connected with the support plate, and the support plate bottom is engagedly connected with the inner wall of the treatment box 4, and the support plate one side is provided with a plurality of ventilation holes;

[0027] Specifically, the treated gas can be guided to move through the connecting pipe 6, the gas flow can be accelerated through the air pump 20, so that the gas enters the treatment box 4, the side of the baffle plate 7 can be supported and reinforced through the support plate, the flow speed of the gas in the treatment box 4 can be slowed down through the baffle plate 7, so as to prolong the residence time of the gas in the treatment box 4, and then the gas is filtered by the filter plate 8, the moisture is removed, and then the gas is adsorbed by the adsorption core 9, the treatment effect of the gas is improved, the sealing property of the top of the treatment box 4 is improved through the sealing plate, and the filter plate 8 and the adsorption core 9 can be taken out and cleaned or replaced after the sealing plate is opened, and the use effect of the filter plate 8 and the adsorption core 9 is guaranteed.

[0028] The use process of the oil sludge thermal cracking tail gas treatment device is as follows:

[0029] Working principle: first, the tail gas generated by the thermal cracking of oil sludge is sent into the treatment tank 1 through the air inlet pipe 16, and after the internal particles are filtered through the filter screen 14, the activated carbon in the adsorption core 2 is preliminarily adsorbed, and then the gas after adsorption enters the catalytic tank 2, the catalytic tank 2 is provided with a catalyst, and a reduction reaction occurs under the action of the catalyst, a reducing agent is added into the catalytic tank 2 during the reaction, the reaction is stably carried out, nitrogen oxides are converted into nitrogen and water vapor, and then the air pump 20 is opened, the nitrogen mixed with water vapor in the catalytic tank 2 is extracted and sent into the treatment box 4, and after being deflected by the baffle plate 7, the water vapor is filtered and removed through the high-molecular waterproof and breathable film on the filter plate 8, and then the nitrogen is adsorbed by the activated carbon in the adsorption core 1, and finally the nitrogen is discharged through the exhaust pipe, the motor 19 drives the scraper 18 to rotate, the scraper 18 scrapes off the dust accumulated on one side of the filter screen 14, and the dust after scraping off falls into the dust collecting box 17 for collection.

[0030] The preferred embodiments of the utility model disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details, and the utility model is limited to the specific implementation mode. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. An oil sludge thermal cracking tail gas treatment device, characterized by: The invention comprises a catalytic tank (2), wherein the outer ring surface of the catalytic tank (2) is fixedly connected to a heating sleeve (3), the outer ring surface of the heating sleeve (3) is fixedly connected to a heating pipe (12), the interior of the heating pipe (12) is fixedly connected to a plurality of heating wires, an auxiliary pipe (11) is inserted through the top of the catalytic tank (2), one end of the auxiliary pipe (11) is fixedly connected to a processing tank (1), the outer ring surface of the processing tank (1) is fixedly connected to a bracket (10), one end of the processing tank (1) is fixedly connected to an air intake pipe (16), and the processing tank (1 ) is connected to the inner wall of the adsorption core 2 (13), a filter screen (14) is provided on one side of the adsorption core 2 (13), the filter screen (14) is connected to the inner wall of the processing tank (1), a scraper (18) is rotatably connected to one side of the filter screen (14), the output shaft of the motor (19) is fixedly connected to one side of the scraper (18), the mounting frame (15) is fixedly connected to one side of the motor (19), the mounting frame (15) is fixedly connected to the inner wall of the processing tank (1), and a dust collecting box (17) is engaged at the bottom of the processing tank (1).

2. The oil sludge thermal cracking tail gas treatment device according to claim 1, characterized in that: The top of the catalytic tank (2) is fixedly connected to a connecting pipe (6), and one end of the connecting pipe (6) is fixedly connected to a flow guide pipe (5).

3. The oil sludge thermal cracking tail gas treatment device according to claim 2, characterized in that: One end of the flow guide tube (5) is fixedly connected to an air pump (20), and one side of the air pump (20) is fixedly connected to the processing box (4).

4. The oil sludge thermal cracking tail gas treatment device according to claim 3, characterized in that: The exhaust port of the air pump (20) is fixedly connected to the processing box (4), and an exhaust pipe is fixedly connected to one side of the processing box (4).

5. The oil sludge thermal cracking tail gas treatment device according to claim 4, characterized in that: The top of the processing box (4) is clamped with a sealing plate, the bottom of the sealing plate is clamped with an adsorption core (9), and the bottom of the adsorption core (9) is clamped and connected to the bottom of the inner cavity of the processing box (4).

6. The oil sludge thermal cracking tail gas treatment device according to claim 5, characterized in that: A filter plate (8) is provided on one side of the adsorption core (9), the bottom of the filter plate (8) is snap-connected with the bottom of the inner cavity of the treatment box (4), and a baffle (7) is overlapped on one side of the filter plate (8).

7. The oil sludge thermal cracking tail gas treatment device according to claim 6, characterized in that: A support plate is fixedly connected to one side of the baffle plate (7), the bottom of the support plate is snap-connected to the inner wall of the processing box (4), and a plurality of ventilation holes are provided on one side of the support plate.

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