Oil sludge pyrolysis gas purification device

Abstract

The utility model discloses an oil sludge pyrolysis gas purification device and relates to the technical field of oil sludge pyrolysis. Comprising a heating furnace, a plurality of combustors are arranged in the heating furnace, a smoke exhaust pipe is arranged on the outer side of the heating furnace, and the smoke exhaust pipe is communicated with the heating furnace; the pyrolysis tank is arranged on the outer side of the heating furnace and is used for pyrolyzing the oil sludge; the gas guide assembly is arranged on the outer side of the pyrolysis tank and is used for guiding the pyrolysis gas; and the filtering assembly is arranged in the gas guiding assembly and is used for filtering the waste gas. Through the arrangement of the gas guide assembly and the connecting pipe, gas obtained after combustion is guided into the containing groove through cooperation of the connecting pipe and the fixing column, pyrolysis gas is dried through combustion waste heat, and the situation that due to the fact that the water content in the pyrolysis gas is high, a large amount of combustion-supporting fuel needs to be added is avoided; and meanwhile, pyrolysis gas and gas after combustion are isolated through cooperation of a containing groove, a partition plate and a gas guide pipe, and leakage of the pyrolysis gas is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil sludge pyrolysis technology, specifically to an oil sludge pyrolysis gas purification device. Background Technology

[0002] The sources of crude oil include flocs formed by water purification agents added during wastewater treatment, corrosion products from equipment and pipelines, various scales, bacteria, etc. When storing oil, small amounts of mechanical impurities, sand, mud, heavy metal salts, and heavy oil components such as paraffin and asphalt in the oil products are deposited at the bottom of the oil tank, forming oil sludge. The composition of oily sludge from oil fields is extremely complex, generally consisting of oil-in-water, water-in-oil, and suspended solid impurities. It is an extremely stable suspension emulsion system containing a large amount of aged crude oil, waxes, asphalt, colloids and suspended solids, bacteria, salts, acidic gases, corrosion products, etc. In addition, a large amount of coagulants, corrosion inhibitors, scale inhibitors, bactericides, and other treatment agents are added during the production process.

[0003] Currently, the measures adopted by different oilfields for treating sludge are not entirely the same. The treatment methods are mainly divided into physicochemical treatment, biological treatment and incineration treatment. In the incineration process, due to the high water content in the pyrolysis gas, the calorific value of the pyrolysis gas is low, so a large amount of combustion-supporting fuel needs to be added. Therefore, an oil sludge pyrolysis gas purification device is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the high water content in pyrolysis gas leads to a low calorific value, thus requiring the addition of a large amount of combustion-supporting fuel. This invention provides an oil sludge pyrolysis gas purification device.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] The oil sludge pyrolysis gas purification device includes:

[0007] A heating furnace, wherein multiple burners are provided inside the heating furnace, and an exhaust pipe is provided on the outside of the heating furnace and is connected to the heating furnace;

[0008] A pyrolysis tank, located outside the heating furnace, is used for the pyrolysis of oil sludge.

[0009] The gas guiding assembly, located on the outside of the pyrolysis tank, is used to guide the pyrolysis gas.

[0010] The filter assembly, located inside the air guide assembly, is used to filter the exhaust gas.

[0011] Furthermore, the pyrolysis tank is located at the bottom, and an inlet pipe and an exhaust pipe are respectively provided on the outside of the pyrolysis tank, and the inlet pipe and the exhaust pipe are respectively connected to the pyrolysis tank.

[0012] Furthermore, the air guiding assembly includes a fixed column, a connecting plate, an air guiding pipe, and a partition. The fixed column has an internal receiving groove that extends through one end of the fixed column. The fixed column has a collecting pipe, a first connecting pipe, and a smoke inlet pipe on its outer side. The collecting pipe, the first connecting pipe, and the smoke inlet pipe are all connected to the fixed column, and the smoke inlet pipe is connected to the exhaust pipe. The end of the first connecting pipe has a connecting pipe that is connected to the burner. The connecting plate is located at the open end of the fixed column and is connected to the exhaust pipe. One end of the air guiding pipe abuts against the connecting plate, and the connecting plate is connected to the exhaust pipe. The partition is located at the other end of the air guiding pipe and is connected to the fixed column.

[0013] Furthermore, an observation tube is provided on the outside of the fixed column, and the observation tube is connected to the receiving groove.

[0014] Furthermore, the filter assembly includes a fixing ring, a support tube, and multiple filter screens. The fixing ring is disposed inside the fixing column, and a connecting ring is provided between the support tube and the fixing ring, with the connecting ring being threadedly connected to the fixing ring. The filter screens are disposed inside the support tube.

[0015] Furthermore, a collection groove is provided on the side of the connecting plate opposite to the fixed column.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention, through the arrangement of the gas guiding component and the connecting pipe, enables the gas after combustion to be introduced into the receiving tank through the cooperation of the connecting pipe and the fixed column. This allows the waste heat of combustion to be used to dry the pyrolysis gas, avoiding the need to add a large amount of combustion-supporting fuel due to the high water content in the pyrolysis gas. At the same time, the pyrolysis gas and the gas after combustion are isolated by the cooperation of the receiving tank, the partition and the gas guiding pipe, preventing the leakage of the pyrolysis gas.

[0018] By configuring the filter components, dust can be filtered from the combustion gases through the cooperation of the filter screen, connecting ring, and support tube, ensuring the cleanliness of the combustion gases. At the same time, the cooperation of the fixing ring and connecting ring allows for quick replacement of the support tube and filter screen, improving the convenience of installation. Attached Figure Description

[0019] Figure 1 This is a front view of the heating furnace of this utility model;

[0020] Figure 2 This is a side view of the heating furnace of this utility model;

[0021] Figure 3 This is a partial sectional view of the heating furnace of this utility model;

[0022] Figure 4This is a side sectional view of the air guide assembly of this utility model;

[0023] Figure 5 This is a partial sectional view of the fixing column of this utility model;

[0024] Figure 6 This utility model Figure 5 Enlarged view of section A in the middle;

[0025] Reference numerals: 1. Heating furnace; 101. Burner; 102. Exhaust pipe; 2. Pyrolysis tank; 201. Feed pipe; 202. Exhaust pipe; 3. Gas guiding assembly; 301. Fixed column; 302. Observation tube; 303. Collection tube; 304. Receiving tank; 305. First connecting pipe; 306. Connecting plate; 307. Gas guiding pipe; 308. Baffle plate; 310. Smoke inlet pipe; 4. Connecting pipe; 5. Filter assembly; 501. Fixed ring; 502. Connecting ring; 503. Support pipe; 504. Filter screen. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0027] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0028] like Figures 1 to 6 As shown, the sludge pyrolysis gas purification device includes: a heating furnace 1, which has multiple burners 101 inside and a flue pipe 102 connected to the heating furnace 1 on the outside; a pyrolysis tank 2, which is located outside the heating furnace 1 and is used to pyrolyze the sludge; a gas guiding assembly 3, which is located outside the pyrolysis tank 2 and is used to guide the pyrolysis gas; and a filter assembly 5, which is located inside the gas guiding assembly 3 and is used to filter the exhaust gas. Specifically, in use, the sludge to be pyrolyzed is first added to the pyrolysis tank 2. The added sludge undergoes pyrolysis under the heating of the heating furnace 1. The pyrolysis gas is guided into the heating furnace 1 through the gas guiding assembly 3 and burned, thereby treating part of the pyrolysis gas. The burned gas re-enters the gas guiding assembly 3 and is filtered for dust by the filter assembly 5 inside the gas guiding assembly 3. The filtered gas is collected centrally through a collection pipe 303 to prevent the direct emission of the gas after sludge pyrolysis and avoid environmental pollution.

[0029] like Figures 1 to 6As shown, the pyrolysis tank 2 is located at the bottom. The outside of the pyrolysis tank 2 is provided with a feed pipe 201 and an exhaust pipe 202. The feed pipe 201 and the exhaust pipe 202 are respectively connected to the pyrolysis tank 2. Specifically, the exhaust pipe 202 is located at the top of the pyrolysis tank 2. The exhaust pipe 202 is used to collect the gas after pyrolysis, so that it can enter the gas guiding component 3 for further processing. The pyrolysis tank 2 is existing technology and will not be explained in detail here.

[0030] like Figures 1 to 6 As shown, the air guiding assembly 3 includes a fixed column 301, a connecting plate 306, an air guiding pipe 307, and a partition 308. The fixed column 301 has an internal receiving groove 304 that extends through one end. The outside of the fixed column 301 is provided with a collecting pipe 303, a first connecting pipe 305, and a smoke inlet pipe 310. All three are connected to the fixed column 301, and the smoke inlet pipe 310 is connected to the exhaust pipe 102. The end of the first connecting pipe 305 is provided with a connecting pipe 4, which is connected to the burner 101. The connecting plate 306 is located at the open end of the fixed column 301 and is connected to the exhaust pipe 202. One end of the air guiding pipe 307 abuts against the connecting plate 306, and the connecting plate 306 is connected to the exhaust pipe 202. The gas pipe 307 is connected to the gas pipe 202. The baffle 308 is set at the other end of the gas guide pipe 307 and is connected to the fixed column 301. Specifically, after the gas enters the exhaust pipe 202, it is guided by the gas guide pipe 307 and the baffle 308 through the first connecting pipe 305 and the connecting pipe 4 to guide the gas into the burner 101. The gas is burned in the heating furnace 1 to treat the combustible gas generated during pyrolysis. The gas after combustion is guided by the flue pipe 102 and enters the receiving tank 304 through the flue pipe 310. The combustion gas entering the receiving tank 304 is filtered by the filter assembly 5 to filter the dust. After filtration, the filtered gas is collected by the collection pipe 303 to avoid the direct emission of the gas after pyrolysis and cause air pollution.

[0031] More specifically, the partition 308, together with the gas guide pipe 307, separates the receiving tank 304, thereby blocking the pyrolysis gas and the combustion gas. This allows the combustion gas to use its residual heat to heat the pyrolysis gas, causing the moisture in the pyrolysis gas to evaporate and increasing the calorific value of the pyrolysis gas. The collection pipe 303 is connected to the gas collector, thereby collecting and storing the combustion gas for centralized processing.

[0032] like Figures 1 to 6As shown, an observation tube 302 is also provided on the outside of the fixed column 301. The observation tube 302 is connected to the receiving groove 304. Specifically, the end of the observation tube 302 is also provided with a sealing cover. By opening the sealing cover, the filter component 5 inside the receiving groove 304 can be observed and cleaned to avoid dust blockage and a decrease in filter flow.

[0033] like Figures 1 to 6 As shown, the filter assembly 5 includes a fixing ring 501, a support tube 503, and multiple filter screens 504. The fixing ring 501 is disposed inside the fixing post 301. A connecting ring 502 is provided between the support tube 503 and the fixing ring 501, and the connecting ring 502 is threadedly connected to the fixing ring 501. The filter screens 504 are disposed inside the support tube 503. Specifically, the filter screens 504 are made of high-temperature resistant material. The support tube 503 is connected to the fixing ring 501 through the connecting ring 502, so that the filter screens 504 can be quickly installed and removed when they are replaced.

[0034] like Figures 1 to 6 As shown, the connecting plate 306 has a collection groove on the side opposite to the fixed column 301. Specifically, the collection groove collects the dust falling from the filter screen 504, so as to prevent the dust falling from the filter screen 504 from adhering to the surface of the filter screen 504 under the blowing of the airflow during use, which would cause the filter screen 504 to become clogged.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A gas purification device for pyrolysis of oil sludge, characterized in that, include: A heating furnace (1) is provided with multiple burners (101) inside the heating furnace (1) and a flue pipe (102) is provided on the outside of the heating furnace (1) and the flue pipe (102) is connected to the heating furnace (1); The pyrolysis tank (2) is located outside the heating furnace (1) and is used to pyrolyze the oil sludge. The gas guiding component (3) is located outside the pyrolysis tank (2) and is used to guide the pyrolysis gas. The filter assembly (5) is located inside the air guide assembly (3) and is used to filter the exhaust gas.

2. The oil sludge pyrolysis gas purification device according to claim 1, characterized in that, The pyrolysis tank (2) is located at the bottom. The outside of the pyrolysis tank (2) is provided with a feed pipe (201) and an exhaust pipe (202), which are respectively connected to the pyrolysis tank (2).

3. The oil sludge pyrolysis gas purification device according to claim 2, characterized in that, The air guiding assembly (3) includes a fixed column (301), a connecting plate (306), an air guiding pipe (307), and a partition plate (308). The fixed column (301) has an internal receiving groove (304) that extends through one end of the fixed column (301). The fixed column (301) has a collection pipe (303), a first connecting pipe (305), and a smoke inlet pipe (310) on its outer side. The collection pipe (303), the first connecting pipe (305), and the smoke inlet pipe (310) are all connected to the fixed column (301), and the smoke inlet pipe (310) is connected to the exhaust pipe. The flue (102) is connected, the end of the first connecting pipe (305) is provided with a connecting pipe (4), and the connecting pipe (4) is connected to the burner (101). The connecting plate (306) is set at the opening end of the fixed column (301), and the connecting plate (306) is connected to the exhaust pipe (202). One end of the air guide pipe (307) abuts against the connecting plate (306), and the connecting plate (306) is connected to the exhaust pipe (202). The partition (308) is set at the other end of the air guide pipe (307), and the partition (308) is connected to the fixed column (301).

4. The oil sludge pyrolysis gas purification device according to claim 3, characterized in that, An observation tube (302) is also provided on the outside of the fixed column (301), and the observation tube (302) is connected to the receiving groove (304).

5. The oil sludge pyrolysis gas purification device according to claim 3, characterized in that, The filter assembly (5) includes a fixing ring (501), a support tube (503) and a plurality of filter screens (504). The fixing ring (501) is disposed inside the fixing post (301). A connecting ring (502) is provided between the support tube (503) and the fixing ring (501), and the connecting ring (502) is threadedly connected to the fixing ring (501). The filter screens (504) are disposed inside the support tube (503).

6. The oil sludge pyrolysis gas purification device according to claim 3, characterized in that, The connecting plate (306) has a collection groove on the side opposite to the fixed column (301).

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