Kettle residue and waste oil recovery treatment device

Through the remnant and waste oil recovery and treatment device of the kettle residue and waste oil, the high-temperature cracking furnace and cooling structure are used to use waste oil and non-condensed gas as the fuel of the sintering kiln, which solves the problem of high energy consumption of the sintering kiln and realizes cost reduction and waste reuse.

CN223165943UActive Publication Date: 2025-07-29YUYUAN (LIAONING) ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422309197.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-21
Publication Date
2025-07-29
Estimated Expiration
2034-09-21

AI Technical Summary

Technical Problem

The energy consumption of existing sintered kilns is high and the environmental pressure is high. The use of existing fuels such as liquefied natural gas, biomass and heavy oils leads to increased resource consumption.

Method used

Design the recycling and treatment devices for residual kettle and waste oil, including high-temperature cracking furnaces, cooling structures, storage tanks, pressurized pump groups and gasification valve groups. The waste oil and non-condensed gas generated by the high-temperature cracking kettle and waste oil are used as sintering kiln fuels to reduce the cost of purchased fuel.

Benefits of technology

By replacing traditional fuel with waste oil and non-condensed gas, the production cost of sintered kilns is reduced, waste reuse is achieved, and the purpose of circular economy is achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of kettle residue and waste oil recovery processing, in particular to a kettle residue and waste oil recovery processing device which comprises a first processing assembly, a second processing assembly and a third processing assembly, and the first processing assembly can further comprise a high-temperature cracking furnace, a cooling structure, a storage tank, a waste residue collecting box and a pressure pump set. The cooling structure is provided with a first port for outputting gas, a second port for outputting liquid and a third port for inputting gas, and the high-temperature cracking furnace is provided with a first port for inputting fuel, a second port for outputting steam, a third port for treating waste residues and a filler port for adding cracking raw materials. Recovered waste oil sludge, waste plastics and the like are firstly subjected to high-temperature pyrolysis, waste oil and other substances with calorific values extracted after pyrolysis gas is cooled are used as fuel for sintering hazardous wastes, part of expenses of purchased cavings fuel can be saved, the cost in the production process of a sintering kiln is reduced, and the purposes of treating wastes with wastes, recycling the wastes and realizing circular economy are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of recovery and treatment of kettle residues and waste oils, and particularly relates to a device for recovering and treating kettle residues and waste oils. Background Art

[0002] At present, the heat sources of sintering kilns are mainly liquefied natural gas, biomass, heavy oil, etc.

[0003] However, when the existing sintering kilns use traditional liquefied natural gas, biomass, and heavy oil as fuels, the energy consumption is relatively large, which increases the cost in the production process of the sintering kilns. At the same time, the consumption of some non-renewable energy sources exerts greater pressure on the environment. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems of high energy consumption cost and large environmental pressure in the production process of existing sintering kilns, and to propose a device for recovering and treating kettle residues and waste oils.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] Design a device for recovering and treating kettle residues and waste oils, including a first treatment component, a second treatment component, and a third treatment component. The first treatment component may further include a high-temperature cracking furnace, a cooling structure, a storage tank, a waste residue collection box, and a pressurizing pump group. The cooling structure has a first port for outputting gas, a second port for outputting liquid, and a third port for inputting gas. The high-temperature cracking furnace has a first port for inputting fuel, a second port for outputting steam, a third port for waste residue treatment, and a filler port for adding cracking raw materials. The storage tank has a first port and a second port for liquid storage, and a third port and a fourth port for outputting liquid. The third port of the high-temperature cracking furnace is provided with a waste residue collection box. The second port of the high-temperature cracking furnace is connected to the third port of the cooling structure through a pipeline. The second port of the cooling structure is connected to the first port of the storage tank. The fourth port of the storage tank is connected to the input end of the pressurizing pump group through a pipeline.

[0007] Preferably, the second treatment component includes an electric heating and stirring structure, a temporary storage tank, and a pressurizing pump group;

[0008] The output end of the electric heating and stirring structure is connected to the temporary storage tank through a pipeline, and the output end of the temporary storage tank is connected to the input end of the pressurizing pump group through a pipeline.

[0009] Preferably, a filtering structure is arranged on the pipeline between the electric heating and stirring structure and the temporary storage tank.

[0010] Preferably, the third treatment component includes a gasification valve group, a five-channel burner, and a sintering kiln;

[0011] The gasification valve group is provided with a first connection end for liquid inlet, a second connection end for output after gasification, a third connection end for liquid reflux, and a fourth connection end for gas inlet. The second connection end of the gasification valve group is connected to a five-channel burner through a pipeline, and the output end of the five-channel burner is connected to a sintering kiln.

[0012] Preferably, the third connection end of the gasification valve group is connected to the second port of the storage tank.

[0013] Preferably, the first connection end of the gasification valve group is connected to the pressurizing pump groups on both sides through pipelines.

[0014] Preferably, the cooling structure also has a first connection end for cooling water inlet and a second connection end for cooling water output. The first connection end and the second connection end of the cooling structure are respectively connected to a storage pool of cooling water.

[0015] Preferably, the first port of the high-temperature pyrolysis furnace is connected to the third port of the storage tank and the first port of the cooling structure through pipelines.

[0016] A device for recovering and treating kettle residue and waste oil proposed by the present utility model has the beneficial effects that the recovered waste oil sludge, waste plastics, etc. are first subjected to high-temperature pyrolysis, and the calorific value substances such as waste oil extracted after cooling the pyrolysis gas are used as fuel for sintering hazardous waste, which can save a part of the cost of purchased rice bran fuel, reduce the cost in the production process of the sintering kiln, achieve the purpose of treating waste with waste, recycling waste, and circular economy. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] In the figure: 1. Cooling structure, 2. High-temperature pyrolysis furnace, 3. Storage tank, 4. Waste residue collection box, 5. Electric heating and stirring structure, 6. Filtering structure, 7. Temporary storage tank, 8. Pressurizing pump groups, 9. Gasification valve group, 10. Five-channel burner, 11. Sintering kiln. Detailed Embodiments

[0019] The following further describes the present utility model with reference to the drawings:

[0020] A device for recovering and treating kettle residue and waste oil proposed by the present utility model, as Figure 1As shown, the first processing component includes a cooling structure 1, a high-temperature pyrolysis furnace 2, a storage tank 3, a waste residue collection box 4, and a pressurizing pump group 8. The high-temperature pyrolysis furnace 2 has a first port for inputting fuel, a second port for outputting steam, a third port for waste residue treatment, and a filler port for adding pyrolysis raw materials. The cooling structure 1 has a first port for outputting gas, a second port for outputting liquid, and a third port for inputting gas. The storage tank 3 has a first port and a second port for liquid storage, and a third port and a fourth port for outputting liquid. The recycled waste oil sludge or waste plastic is put into the interior of the high-temperature pyrolysis furnace 2 through the filler port of the high-temperature pyrolysis furnace 2 for high-temperature pyrolysis. The second port of the high-temperature pyrolysis furnace 2 is connected to the third port of the cooling structure 1 through a pipeline. The cooling structure 1 also has a first connection end for cooling water to enter and a second connection end for cooling water output. The first connection end and the second connection end of the cooling structure 1 are respectively connected to the water storage tank of the cooling water to realize the circulation of the cooling water. The oil vapor generated during the pyrolysis of waste oil sludge and waste plastic by the high-temperature pyrolysis furnace will enter the interior of the cooling structure 1 through the pipeline. During the flow of the cooling water inside the cooling structure 1, heat exchange occurs when it contacts the oil vapor, thereby generating waste oil and non-condensable gas.

[0021] The third port of the high-temperature pyrolysis furnace 2 is connected to a waste residue collection box 4 at one time. The waste residue collection box 4 is used to collect the waste residue formed after pyrolysis and then carry out pretreatment and compatibility. The first port of the high-temperature pyrolysis furnace 2 is respectively connected to the first port of the cooling structure 1 and the third port of the storage tank 3. The second port of the cooling structure 1 is connected to the first port of the storage tank 3. The waste oil generated inside the cooling structure 1 enters the interior of the storage tank 3 through the second port of the cooling structure 1, and the non-condensable gas enters the interior of the high-temperature pyrolysis furnace 2 through the first port of the cooling structure 1 and is used as fuel for the high-temperature pyrolysis furnace 2. At the same time, the first port of the high-temperature pyrolysis furnace 2 can also be connected to the third port of the storage tank 3, and the waste oil stored inside the storage tank 3 can be used as fuel for the high-temperature pyrolysis furnace 2. At the same time, the flue gas generated during the heating of the high-temperature pyrolysis furnace can enter the sintering kiln for high-temperature treatment. The fourth port of the storage tank 3 is connected to the input end of the pressurizing pump group 8 through a pipeline, and the waste oil inside the storage tank 3 is pressurized by the pressurizing pump.

[0022] The second processing component includes an electric heating and stirring structure 5, a temporary storage tank 7, and a pressurizing pump group 8. The output end of the electric heating and stirring structure 5 is connected to the temporary storage tank 7, and a filtering structure 6 is arranged on the pipeline between the electric heating and stirring structure 5 and the temporary storage tank 7. The feeding end of the electric heating and stirring structure 5 adds waste materials with calorific value such as kettle residues into the interior of the electric heating and stirring structure 5. After the electric heating and stirring structure 5 heats and stirs the waste materials with calorific value such as kettle residues, the viscosity of the waste materials with calorific value such as kettle residues is reduced to reach the required fluidity. The mesh number of the sieve inside the filtering structure 6 is selected as ten meshes, so that the waste materials with calorific value such as the heated and stirred kettle residues pass through the filter 6 for filtering, and the impurities in the waste liquid of the waste materials with calorific value such as kettle residues are removed, so that the clean waste liquid of the waste materials with calorific value such as kettle residues is stored in the interior of the temporary storage tank 7. The output end of the temporary storage tank 7 is connected to the input end of the pressurizing pump group 8 through a pipeline, and the pressurizing pump group 8 pressurizes the liquid inside the temporary storage tank 7.

[0023] The third processing component includes a gasification valve group 9, a five-channel burner 10, and a sintering kiln 11. The gasification valve group 9 is provided with a first connection end for liquid to enter, a second connection end for output after gasification, a third connection end for liquid to flow back, and a fourth connection end for gas to enter. The second connection end of the gasification valve group 9 is connected to the five-channel burner 10 through a pipeline, and the output end of the five-channel burner 10 is connected to the sintering kiln 11. The output ends of the pressurizing pump groups 8 on both sides are connected to the first connection end of the gasification valve group 9. External air enters the interior of the gasification valve group 9 through the fourth connection end of the gasification valve group 9, and compressed air is used to atomize the waste liquid of the waste materials with calorific value such as kettle residues and waste oil. The atomized waste oil or the waste liquid of the waste materials with calorific value such as kettle residues is sprayed into the interior of the sintering kiln 11 through the five-channel burner 10 to provide fuel for the heat source of the sintering kiln 11.

[0024] Specifically, 1. Waste oil sludge and waste plastics greater than 5% are put into the high-temperature cracking furnace 2. After high-temperature cracking, oil-containing steam will be generated. After the oil-containing steam is cooled by the cooling structure 1, waste oil and non-condensable gas will be generated. The non-condensable gas can be used as fuel for the high-temperature cracking furnace 2. The waste oil is stored through the storage tank 3 and can be used as fuel oil for the sintering kiln 11. The flue gas generated during the heating of the high-temperature cracking furnace 2 can enter the sintering kiln 11 for high-temperature treatment;

[0025] 2. After the waste materials with calorific value such as kettle residues are heated and stirred by the heating barrel of the electric heating and stirring structure 5 to reduce the viscosity to reach the required fluidity, and then filtered through the 10-mesh sieve arranged inside the filtering structure 6 to remove impurities, the clean liquid is stored in the temporary storage tank 7 for heat preservation;

[0026] The above two kinds of liquids are pressurized by different pressurizing pump groups 8, and then atomized by using compressed air through a gasification valve group 9. After that, they are sprayed into the sintering kiln 11 through a five-channel burner 10 to provide fuel for the heat source of the sintering kiln 11, replacing the currently purchased heat source of rice bran. This can save the cost of purchasing rice bran.

[0027] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details can be made within the scope of the claims.

Claims

1. A device for recovering and treating kettle residues and waste oil, characterized in that: It includes a first processing component, a second processing component and a third processing component. The first processing component may further include a high-temperature pyrolysis furnace, a cooling structure, a storage tank, a waste residue collection box and a pressurized pump group. The cooling structure has a first port for outputting gas, a second port for outputting liquid and a third port for inputting gas. The high-temperature pyrolysis furnace has a first port for inputting fuel, a second port for outputting steam, a third port for waste residue treatment and a filler port for adding pyrolysis raw materials. The storage tank has a first port and a second port for liquid storage, and a third port and a fourth port for outputting liquid. The third port of the high-temperature pyrolysis furnace is provided with a waste residue collection box. The second port of the high-temperature pyrolysis furnace is connected to the third port of the cooling structure through a pipeline. The second port of the cooling structure is connected to the first port of the storage tank. The fourth port of the storage tank is connected to the input end of the pressurized pump group through a pipeline.

2. The waste residue and waste oil recovery and treatment device according to claim 1, wherein: The second processing component includes an electric heating and stirring structure, a temporary storage tank and a pressurized pump group; The output end of the electric heating and stirring structure is connected to the temporary storage tank through a pipeline, and the output end of the temporary storage tank is connected to the input end of the pressurized pump group through a pipeline.

3. The waste residue and waste oil recovery and treatment device according to claim 2, characterized in that: A filtering structure is provided on the pipeline between the electric heating and stirring structure and the temporary storage tank.

4. The waste residue and waste oil recovery and treatment device according to claim 1, wherein: The third processing component includes a gasification valve group, a five-channel burner and a sintering kiln; The gasification valve group is provided with a first connection end for liquid to enter, a second connection end for output after gasification, a third connection end for liquid reflux and a fourth connection end for gas to enter. The second connection end of the gasification valve group is connected to the five-channel burner through a pipeline, and the output end of the five-channel burner is connected to the sintering kiln.

5. The waste residue and waste oil recovery and treatment device according to claim 4, characterized in that: The third connection end of the gasification valve group is connected to the second port of the storage tank.

6. The waste residue and waste oil recovery and treatment device according to claim 4, characterized in that: The first connection end of the gasification valve group is connected to the pressurized pump groups on both sides through a pipeline.

7. The waste residue and waste oil recovery and treatment device according to claim 1, characterized in that: The cooling structure also has a first connection end for cooling water to enter and a second connection end for cooling water to output.

8. A residue and waste oil recovery and treatment device according to claim 1, characterized in that: The first port of the high-temperature pyrolysis furnace is connected to the third port of the storage tank and the first port of the cooling structure through a pipeline.