Tar residue separation and recovery system

Abstract

The present invention discloses an oil-residue separation and recovery system for tar residue, comprising a residue storage hopper and a recovery device, wherein a separation component is arranged in the residue storage hopper, and the separation component divides the residue storage hopper into a first chamber and a second chamber, wherein the first chamber is used to store tar residue, and a filter hole connecting the first chamber and the second chamber is arranged on the separation component, and an oil-water mixture can flow from the first chamber through the filter hole to the second chamber, and the recovery device is connected to the second chamber, and the recovery device is used to recover the oil-water mixture in the second chamber. The oil-residue separation and recovery system for tar residue of the present invention can separate the oil-water mixture and the tar residue through the separation component to purify the oil-water mixture, and the purified oil-water mixture can automatically flow to the recovery device, and there is no need to manually salvage and recover the oil-water mixture, which can effectively improve the efficiency of recovering the oil-water mixture and avoid splashing of the oil-water mixture and polluting the working environment.

Description

Technical Field

[0001] The invention relates to the technical field of tar residue treatment, and in particular to an oil residue separation and recovery system for tar residue. Background Art

[0002] During the coke oven production process, the high-temperature coke oven gas produced is cooled in the gas collecting pipe or primary cooler, and the high-boiling point organic compounds are condensed to form coal tar. At the same time, coal powder, coke powder, free carbon produced by pyrolysis at the top of the carbonization chamber and porous matter brought in when cleaning the riser and gas collecting pipe are also mixed in the coal tar and form lumps of varying sizes. These lumps are called tar residues, and the coal tar needs to be purified.

[0003] At present, mechanized clarification and separation equipment is generally used to separate tar residue from coal tar. The separated tar residue will be discharged into the slag storage hopper. After the slag storage hopper is full, it will be transported to the coal preparation process through a conveying device for secondary recycling of production raw materials, such as tar residue blending with coal for coking, which converts tar residue and coal into coke, tar and coke oven gas at the same time, realizing harmless treatment and resource utilization of tar residue. However, the tar residue separated from the mechanized clarification tank also contains a large amount of tar and ammonia water mixture, which is very viscous and can easily cause inaccurate subsequent coal blending, seriously affecting the quality of coke. In addition, when the tar residue is discharged into the slag storage hopper, it splashes and pollutes the working environment, so the tar and ammonia water mixture in the slag storage hopper needs to be treated.

[0004] Since the density of the tar and ammonia mixture is lower than that of the tar residue, the tar and ammonia mixture in the storage hopper will float up and the tar residue will sink. Therefore, the oil-water mixture in the slag storage hopper is usually handled by manual salvage. However, this treatment method has high labor intensity and low work efficiency. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide an oil residue separation and recovery system for tar residue, which is simple to operate and can quickly separate and recover the oil-water mixture in the tar residue.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] Provided is an oil residue separation and recovery system for tar residue, comprising a residue storage hopper and a recovery device, wherein the separation component is arranged in the residue storage hopper, and the separation component divides the residue storage hopper into a first chamber and a second chamber, wherein the first chamber is used to store tar residue, and the separation component is provided with a filter hole connecting the first chamber and the second chamber, and an oil-water mixture can flow from the first chamber through the filter hole into the second chamber, and the recovery device is connected to the second chamber, and the recovery device is used to recover the oil-water mixture in the second chamber.

[0008] As a preferred solution of the oil residue separation and recovery system of tar residue, the separation component is arranged at an angle with the bottom of the residue storage hopper, and the filter hole is adjacent to the top of the residue storage hopper.

[0009] As a preferred solution of the oil residue separation and recovery system of tar residue, the separation component includes a baffle and a filter connected at an angle, the baffle divides the slag hopper into the first chamber and the second chamber, the filter is located above the baffle and extends into the second chamber, the baffle has an angle α with the bottom of the slag hopper, and the filter has an angle β with the bottom of the slag hopper, α>β.

[0010] As a preferred solution of the oil residue separation and recovery system of tar residue, one end of the filter screen is hinged to the baffle, and the other end is snap-connected to the cavity wall of the second chamber.

[0011] As a preferred solution of the oil residue separation and recovery system of tar residue, the side wall of the slag hopper is inclined outward along the direction from the bottom of the slag hopper to the top of the slag hopper, and the separation component is inclined toward the second chamber so that the cross-sectional area of ​​the first chamber gradually expands from the bottom to the top.

[0012] As a preferred solution of the oil residue separation and recovery system of tar residue, the recovery device includes a material storage member and a siphon assembly, the siphon assembly is connected to the second chamber through a first pipeline, the material storage member is connected to the siphon assembly through a second pipeline, the oil residue separation and recovery system of tar residue also includes a water replenishment pipeline, the water replenishment pipeline is connected to the siphon assembly, the first pipeline is provided with a first control valve, the second pipeline is provided with a second control valve, and the water replenishment pipeline is provided with a fifth control valve;

[0013] When the oil-water mixture in the second chamber needs to be discharged, the first control valve and the fifth control valve are opened first, the second control valve and the water replenishment pipeline can replenish water to the first pipeline. After replenishing water, the second control valve is opened, the fifth control valve is closed, and the siphon component is started. The oil-water mixture can flow into the storage member through the first pipeline and the second pipeline.

[0014] As a preferred solution of the oil residue separation and recovery system of tar residue, the water replenishment pipeline is a residual ammonia water pipeline.

[0015] As a preferred solution of the oil residue separation and recovery system of tar residue, the residue storage hopper is provided with an oil drain pipe, one end of which extends to the bottom of the second chamber, and the other end extends to the outside of the second chamber and is detachably connected to the first pipeline.

[0016] As a preferred solution of the oil residue separation and recovery system of tar residue, the siphon assembly includes a bracket and a body arranged on the bracket, and a pulley is arranged at the bottom of the bracket.

[0017] As a preferred solution of the oil residue separation and recovery system for tar residue, it also includes a separation tank and a scraper tank, the separation tank is used to separate the tar in the oil-water mixture, the scraper tank is used to separate the tar residue in the oil-water mixture, the recovery device is connected to the separation tank through a third pipeline, the recovery device is connected to the scraper tank through a fourth pipeline, the third pipeline is provided with a third control valve, and the fourth pipeline is provided with a fourth control valve.

[0018] The beneficial effects of the present invention are as follows: after the tar residue produced by coking is discharged into the first chamber of the residue storage hopper, the tar residue and the oil-water mixture will form layers, and the oil-water mixture can flow from the first chamber through the filter holes to the second chamber, and most of the tar residue is blocked from entering the second chamber, so that the tar residue content in the oil-water mixture can be greatly reduced, the oil-water mixture can be purified, and the purified oil-water mixture can be recycled through a recovery device, without the need for manual salvage to recover the oil-water mixture, which can effectively improve the efficiency of recovering the oil-water mixture and avoid splashing of the oil-water mixture to pollute the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the oil residue separation and recovery system of tar residue according to an embodiment of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the slag storage hopper described in an embodiment of the present invention.

[0022] Figure 3 This is a three-dimensional view of the slag storage hopper described in an embodiment of the present invention.

[0023] In the figure:

[0024] 1. Slag storage hopper; 101. First chamber; 102. Second chamber; 103. Oil drain pipe; 2. Separation assembly; 201. Baffle; 202. Filter; 3. Recovery device; 301. Material storage part; 302. Siphon assembly; 3021. Bracket; 3022. Main body; 3023. Pulley; 4. First pipeline; 5. Second pipeline; 6. Water supply pipeline; 7. First control valve; 8. Second control valve; 9. Fifth control valve; 10. Separation tank; 11. Slag scraping tank; 12. Third pipeline; 13. Fourth pipeline; 14. Third control valve; 15. Fourth control valve; 16. Hopper; 17. Suction pump; 18. Connector. DETAILED DESCRIPTION

[0025] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the coking process, the tar formed by the primary refining will be mixed with tar residue and ammonia water, and the tar will be purified by mechanized clarification and separation equipment. The mechanized clarification and separation equipment includes a scraper tank and a tar-ammonia water mixture separation tank. The tar formed by the primary refining can be separated from the tar residue in the tar through the scraper tank to obtain a tar-ammonia water mixture, and the tar-ammonia water mixture can be separated into a tar with a higher purity through the tar-ammonia water mixture separation tank. Among them, the tar residue separated from the scraper tank will be transported to the slag storage hopper by the scraper for recovery.

[0028] The present invention provides a tar residue oil residue separation and recovery system, which is used to separate and recover the oil-water mixture in the tar residue, wherein the oil-water mixture mainly contains tar and ammonia water. Figures 1 to 3The oil residue separation and recovery system of tar residue comprises a residue storage hopper 1 with an open top and a recovery device 3. The residue storage hopper 1 is provided with a separation component 2. The separation component 2 divides the residue storage hopper 1 into a first chamber 101 and a second chamber 102. The first chamber 101 is used to store tar residue, and the second chamber 102 is used to store separated oil-water mixture. The recovery device 3 is connected with the second chamber 102 through a pipeline. The recovery device 3 is used to recover the oil-water mixture in the second chamber 102. The separation component 2 is provided with a filter hole connecting the first chamber 101 and the second chamber 102. When After the tar residue produced by coking is discharged into the first chamber 101 of the residue storage hopper 1, the tar residue and the oil-water mixture will form layers, and the oil-water mixture can flow from the first chamber 101 through the filter holes to the second chamber 102, and block most of the tar residue from entering the second chamber 102, which can greatly reduce the tar residue content in the oil-water mixture and purify the oil-water mixture. Moreover, the purified oil-water mixture can automatically flow to the recovery device 3, and there is no need to manually salvage and recover the oil-water mixture, which can effectively improve the efficiency of recovering the oil-water mixture and avoid splashing of the oil-water mixture and polluting the working environment.

[0029] Specifically, the separation component 2 is arranged at an angle with the bottom of the slag hopper 1, that is, the separation component 2 separates the first chamber 101 and the second chamber 102 in the horizontal direction, and a filter hole is arranged on the top of the separation component 2, and the filter hole is adjacent to the top of the slag hopper 1. According to the density relationship between the tar residue and the oil-water mixture, the weight of the tar residue is greater than the weight of the oil-water mixture, therefore, the tar residue will be deposited at the bottom of the first chamber 101, and the oil-water mixture will float above the tar residue, and when the amount of tar residue in the first chamber 101 increases to the position where the liquid level of the oil-water mixture exceeds the filter hole, the oil-water mixture can flow into the second chamber 102 through the filter hole.

[0030] Preferably, the separation assembly 2 is non-centrally arranged in the slag storage hopper 1, so that the storage space of the first chamber 101 is larger than the storage space of the second chamber 102. The proportion of oil-water mixture in the tar residue is much lower than the content of tar residue agglomerates. Therefore, this design can increase the storage space of the first chamber 101, ensure that the slag storage hopper 1 can store as many tar residue agglomerates as possible, and improve the space utilization rate of the slag storage hopper 1.

[0031] In this embodiment, refer to Figures 1 to 3The slag hopper 1 is a trumpet hopper. The internal space of the slag hopper 1 gradually expands along the direction from the bottom of the slag hopper 1 to the top of the slag hopper 1. The side wall of the slag hopper 1 is tilted toward the outside of the slag hopper 1. The separation component 2 is tilted toward the second chamber 102 along the direction from the bottom of the slag hopper 1 to the top of the slag hopper 1, so that the cross-sectional area of ​​the first chamber 101 gradually expands from its bottom to its top, that is, the first chamber 101 is a trumpet shape that is wide at the top and narrow at the bottom. When the scraper trough 11 discharges the tar residue into the first chamber 101, the cavity wall of the first chamber 101 can guide the tar residue to the bottom, which helps to evenly distribute the tar residue in the first chamber 101.

[0032] In other embodiments, the separation assembly 2 may also be vertically disposed with respect to the bottom of the slag hopper 1 .

[0033] Specifically, refer to Figure 2 and Figure 3 The separation component 2 includes a baffle 201 and a filter screen 202 connected at an angle, the filter screen 202 is provided with filter holes, the baffle 201 is arranged in the slag storage hopper 1, the baffle 201 divides the slag storage hopper 1 into a first chamber 101 and a second chamber 102, the filter screen 202 is located above the baffle 201 and extends to the second chamber 102, when the oil-water mixture flows from the first chamber 101 into the second chamber 102, the oil-water mixture can pass through the filter screen 202 to block the tar residue that flows into the second chamber 102 with the oil-water mixture.

[0034] Among them, there is an angle α between the baffle 201 and the bottom of the slag hopper 1, and an angle β between the filter screen 202 and the bottom of the slag hopper 1, β<α<90°, that is, the slope of the filter screen 202 is smaller than the slope of the baffle 201, so that the filter screen 202 is smoother than the baffle 201, which is more conducive to the oil-water mixture to flow through the filter screen 202 to the second chamber 102.

[0035] Preferably, refer to Figure 2 The second chamber 102 has a chamber wall opposite to the baffle 201 , and the baffle 201 is parallel to the chamber wall of the second chamber 102 opposite to the baffle 201 .

[0036] Specifically, in order to facilitate the oil-water mixture to flow to the second chamber 102 through the filter screen 202, the angle between the baffle 201 and the filter screen 202 is 100° to 150°. Preferably, the angle between the baffle 201 and the filter screen 202 is 110°, 120°, 130°, 140°, etc.

[0037] In one embodiment, one end of the filter screen 202 is hinged to the baffle 201, and the other end is connected to the cavity wall of the second chamber 102 by a buckle or lock. After long-term use of the filter screen 202, tar residue will block the filter holes. This design allows the filter screen 202 to be flipped and set on the baffle 201, which can facilitate cleaning of the filter screen 202.

[0038] Specifically, refer to Figure 1 The recovery device 3 includes a material storage part 301 and a siphon assembly 302. The siphon assembly 302 is connected to the second chamber 102 through a first pipeline 4. The material storage part 301 is connected to the siphon assembly 302 through a second pipeline 5. The oil residue separation and recovery system of tar residue also includes a water replenishment pipeline 6, which is connected to the siphon assembly 302. The first pipeline 4 is provided with a first control valve 7, the second pipeline 5 is provided with a second control valve 8, and the water replenishment pipeline 6 is provided with a fifth control valve 9.

[0039] When the oil-water mixture in the second chamber 102 needs to be discharged, the first control valve 7 and the fifth control valve 9 are opened first, and the second control valve 8 is closed, so that the water replenishing agent in the water replenishing pipeline 6 can flow to the first pipeline 4 to replenish water to the first pipeline 4; after replenishing water, the second control valve 8 is opened, the fifth control valve 9 is closed, and the siphon component 302 is started. Under the siphon effect, the oil-water mixture can be discharged into the storage member 301 through the first pipeline 4 and the second pipeline 5. Since the oil-water mixture has poor fluidity and slow oil discharge efficiency, this design can effectively improve the discharge efficiency of the oil-water mixture through the siphon component 302.

[0040] In this embodiment, the material storage member 301 is an underground tank, and there is a height difference between the material storage tank and the slag storage hopper 1 to form a siphon effect. A trumpet-shaped hopper 16 is provided at the inlet of the material storage tank, and the inlet of the hopper 16 is connected to the outlet of the second pipeline 5 for recovering the oil-water mixture discharged from the second chamber 102.

[0041] Preferably, the water replenishment pipeline 6 is a residual ammonia water pipeline, that is, the water replenishing agent is the residual ammonia water separated by the tar ammonia water mixture separation tank 10. The residual ammonia water contains toxic and harmful substances such as ammonia, phenol, sulfide, cyanide, pyridine and coal tar, and is the main source of industrial wastewater in the coking process. This design uses residual ammonia water as the water replenishing agent of the siphon component 302, wherein the temperature of the residual ammonia water is 60-70°C, and the residual ammonia water can be reused to achieve the purpose of treating the residual ammonia water, and the residual ammonia water is an alkaline substance, which can neutralize the tar acid in the oil-water mixture, thereby playing a role in protecting the pipeline, and the residual ammonia water also has lubricity, which helps to improve the fluidity of the oil-water mixture.

[0042] Specifically, refer to Figure 1 and Figure 2 The slag hopper 1 is also provided with an oil drain pipe 103, one end of which extends to the bottom of the second chamber 102, and the other end extends to the outside of the second chamber 102, and is detachably connected to the first pipeline 4. After the slag hopper 1 is filled with tar slag, the filled slag hopper 1 will be removed and replaced with an empty one. Therefore, the detachable connection between the second chamber 102 and the first pipeline 4 can quickly disconnect the first pipeline 4 so as to replace the slag hopper 1.

[0043] As an example, the oil drain pipe 103 and the first pipeline 4 are detachably connected via a joint 18 to facilitate disconnection of the first pipeline 4 .

[0044] In this embodiment, the first pipeline 4 and the second pipeline 5 are both hoses, and the siphon assembly 302 includes a bracket 3021 and a body 3022 disposed on the bracket 3021, and a pulley 3023 is disposed at the bottom of the bracket 3021. Since there is a certain deviation in the parking position of the slag storage hopper 1 after each replacement, it is easy to cause the distance between the first pipeline 4 and the oil discharge pipe 103 to be too large and unable to be connected, and the siphon assembly 302 can be moved by the pulley 3023 to adjust the position of the first pipeline 4 and the second pipeline 5 to ensure that the first pipeline 4 and the oil discharge pipe 103 can be smoothly connected.

[0045] The main body 3022 may adopt a siphon device of the prior art.

[0046] For example, the pulley 3023 is a universal wheel, and a locking structure is provided on the pulley 3023. The locking structure can limit the movement of the pulley 3023 to prevent the siphon component 302 from moving due to misoperation.

[0047] In another embodiment, the first pipeline 4 and / or the oil drain pipe 103 are both bellows. This design can ensure that the first pipeline 4 and the oil drain pipe 103 can be smoothly connected by adjusting the length and direction of the first pipeline 4 and the oil drain pipe 103.

[0048] Specifically, the oil residue separation and recovery system of tar residue also includes a separation tank 10 and a scraper tank 11. The separation tank 10 is used to separate tar and ammonia water in the oil-water mixture, and the scraper tank 11 is used to separate tar residue in the oil-water mixture. The recovery device 3 is connected to the separation tank 10 through a third pipeline 12, and the recovery device 3 is connected to the scraper tank 11 through a fourth pipeline 13. The third pipeline 12 is provided with a third control valve 14, and the fourth pipeline 13 is provided with a fourth control valve 15.

[0049] The oil-water mixture recovered into the storage part 301 can be recycled for a second time. When the tar residue content in the recovered oil-water mixture is low, the third control valve 14 is opened and the fourth control valve 15 is closed, and the oil-water mixture can be transported to the separation tank 10 for clarification and separation again to separate and recover the tar; when the tar residue content in the recovered oil-water mixture is high, the fourth control valve 15 is opened and the third control valve 14 is closed, and the oil-water mixture can be transported to the scraper tank 11 for scraping again until the tar residue content in the oil-water mixture meets the production requirements, and then the oil-water mixture is transported to the separation tank 10 for clarification and separation.

[0050] It should be noted that both the separation tank 10 and the scraping tank 11 can adopt the structure in the prior art, which will not be described in detail here.

[0051] Furthermore, a suction pump 17 is provided on the third pipeline 12 and the fourth pipeline 13 , and the suction pump 17 can transport the oil-water mixture to the separation tank 10 or the scraping tank 11 .

[0052] The oil residue separation and recovery system of tar residue of the present invention can separate and recover tar in tar residue, and specifically comprises the following operating steps:

[0053] S100, placing the slag storage hopper 1 below the discharge port of the scraper trough 11, so that the tar residue discharged from the scraper trough 11 can be discharged into the first chamber 101 of the slag storage hopper 1;

[0054] When the liquid level of the oil-water mixture in the slag storage hopper 1 exceeds the connection between the baffle 201 and the filter screen 202, the communicating area between the first chamber 101 and the second chamber 102 is filled with the oil-water mixture, and the oil-water mixture can flow through the filter holes to the second chamber 102, and the siphon component 302 can be started to discharge the oil;

[0055] S200, siphoning oil: first open the first control valve 7 and the fifth control valve 9, and close the second control valve 8 to replenish ammonia water to the first pipeline 4;

[0056] When bubbles appear in the oil-water mixture in the second chamber 102, it indicates that the water replenishment is completed. At this time, the fifth control valve 9 is closed, the second control valve 8 is opened, and the siphon assembly 302 is started, so that there is a pressure difference between the first pipeline 4 and the second chamber 102 and the second pipeline 5, and a siphon effect is formed, so that the oil-water mixture in the second chamber 102 can automatically flow into the storage member 301 through the first pipeline 4 and the second pipeline 5;

[0057] S300, detecting whether the tar residue content of the oil-water mixture in the material storage part 301 meets the production requirements;

[0058] S400, if it meets the production requirements, then open the third control valve 14, close the fourth control valve 15, start the suction pump 17, and transport the oil-water mixture to the separation tank 10 for clarification and separation, so as to separate the tar and recycle it;

[0059] S500, if it does not meet the production requirements, open the fourth control valve 15, close the third control valve 14, start the suction pump 17, transport the oil-water mixture to the scraper trough 11 to remove the residue again, and repeat steps S300 to S500 until the tar residue content of the oil-water mixture meets the production requirements.

[0060] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc., and the like, are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0061] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0062] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0063] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A tar residue separation and recovery system, characterized in that: include: A slag storage hopper, wherein a separation component is arranged in the slag storage hopper, wherein the separation component divides the slag storage hopper into a first chamber and a second chamber, wherein the first chamber is used to store tar residue, and the separation component is provided with a filter hole connecting the first chamber and the second chamber, and an oil-water mixture can flow from the first chamber through the filter hole into the second chamber; a recovery device, the recovery device being in communication with the second chamber, and the recovery device being used to recover the oil-water mixture in the second chamber; The separation assembly is arranged at an angle with the bottom of the slag storage hopper, and the filter hole is adjacent to the top of the slag storage hopper; The separation assembly includes a baffle and a filter screen connected at an angle, the baffle separates the slag storage hopper into the first chamber and the second chamber, the filter screen is located above the baffle and extends into the second chamber, an angle α is formed between the baffle and the bottom of the slag storage hopper, and an angle β is formed between the filter screen and the bottom of the slag storage hopper, α>β; The recovery device includes a material storage part and a siphon assembly, the siphon assembly is connected to the second chamber through a first pipeline, the material storage part is connected to the siphon assembly through a second pipeline, the oil residue separation and recovery system of the tar residue also includes a water replenishment pipeline, the water replenishment pipeline is connected to the siphon assembly, the first pipeline is provided with a first control valve, the second pipeline is provided with a second control valve, and the water replenishment pipeline is provided with a fifth control valve; When the oil-water mixture in the second chamber needs to be discharged, the first control valve and the fifth control valve are opened first, and the second control valve is closed, so that the water supply pipeline can supply water to the first pipeline. After the water supply, the second control valve is opened, the fifth control valve is closed, and the siphon component is started, so that the oil-water mixture can flow into the material storage member through the first pipeline and the second pipeline; The water replenishment pipeline is a residual ammonia water pipeline.

2. The oil residue separation and recovery system of tar residue according to claim 1, characterized in that: One end of the filter screen is hinged to the baffle, and the other end is clamped to the cavity wall of the second chamber.

3. The oil residue separation and recovery system of tar residue according to claim 1, characterized in that: Along the direction from the bottom of the slag hopper to the top of the slag hopper, the side wall of the slag hopper is inclined toward the outside, and the separation component is inclined toward the second chamber so that the cross-sectional area of ​​the first chamber gradually increases from the bottom to the top.

4. The oil residue separation and recovery system of tar residue according to claim 1, characterized in that: The slag storage hopper is provided with an oil drain pipe, one end of which extends to the bottom of the second chamber, and the other end of which extends to the outside of the second chamber and is detachably connected to the first pipeline.

5. The oil residue separation and recovery system of tar residue according to claim 1, characterized in that: The siphon assembly comprises a bracket and a body arranged on the bracket, and a pulley is arranged at the bottom of the bracket.

6. The oil residue separation and recovery system of tar residue according to any one of claims 1 to 2, characterized in that: It also includes a separation tank and a scraper tank, the separation tank is used to separate the tar in the oil-water mixture, the scraper tank is used to separate the tar residue in the oil-water mixture, the recovery device is connected to the separation tank through a third pipeline, the recovery device is connected to the scraper tank through a fourth pipeline, the third pipeline is provided with a third control valve, and the fourth pipeline is provided with a fourth control valve.

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