Gas carbon sludge co-production treatment system

Abstract

The utility model provides a gas-carbon-sludge co-production treatment system which comprises a modified separation tank, a sludge bin is arranged on a feed port of the modified separation tank and connected to the modified separation tank through a sludge conveyor, a discharge port of the modified separation tank is conveyed to a vertical pressure type sludge dewatering machine through a sludge pump for mechanical squeezing dewatering, and the sludge is conveyed to the vertical pressure type sludge dewatering machine through a sludge pump. Sludge dewatered by the vertical pressure type sludge dewatering machine enters a temporary storage bin through a screw conveyor and then is subjected to pyrolysis carbonization treatment, a sludge drying carbonization process is combined with a biomass gasification carbonization process, and the sludge is dried and carbonized by using fuel gas generated by biomass gasification, so that the sludge is recycled. The combined treatment of the sludge and biomass such as agricultural straws, rice husks and rice husks is realized, and meanwhile, finished carbon such as activated carbon and charcoal and a carbonized organic fertilizer with high organic matter content are generated.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically a gas-carbon sludge co-production and treatment system. Background Technology

[0002] Currently, the sludge drying and carbonization process involves directly feeding high-moisture sludge into drying furnaces and carbonization furnaces for drying and carbonization, without involving heatless drying or biomass gasification carbonization systems. This current sludge drying and carbonization process consumes large amounts of fuel gas and electricity, resulting in high energy consumption, low efficiency, and the absence of processing of agricultural straw, rice husks, and other biomass. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a gas-carbon sludge co-production and treatment system to address the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a gas-carbon sludge co-production and treatment system, comprising: a modified separation tank, wherein a sludge silo is provided at the inlet of the modified separation tank, and the sludge silo is connected to the modified separation tank via a sludge conveyor I. The system is characterized in that: the outlet of the modified separation tank is conveyed by a sludge pump I to a vertical pressure sludge dewatering machine for mechanical pressing and dewatering; the sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor into a temporary storage silo, and then subjected to pyrolysis and carbonization treatment; the sludge after dewatering by the vertical pressure sludge dewatering machine is conveyed from the temporary storage silo to a sludge drying furnace via a sludge conveyor II for pyrolysis and drying; the pyrolyzed sludge is conveyed by a sludge conveyor III to an intermediate silo, and then by a sludge conveyor IV to a carbonization furnace for carbonization treatment; the carbonized sludge is then conveyed by a water-cooled screw conveyor into a carbonized product silo for storage.

[0005] Furthermore, the modified separation tank includes a tank body, a spiral water pipe, a stirring shaft, and a sludge pump I. The spiral water pipe is spirally wound around the tank body and is welded integrally with the tank body. The spiral water pipe has an inlet and an outlet. High-temperature hot water enters from the inlet, passes through the spiral water pipe, and flows out from the outlet. The top of the separation tank is equipped with a feed inlet, a level gauge, and a reduction motor. The reduction motor is connected to a stirring shaft, which is located inside the tank body. Spiral blades are welded onto the stirring shaft.

[0006] Furthermore, a biomass silo is provided on one side of the modified separation tank. Biomass enters the gasifier through the biomass silo and the lifting conveyor. In the gasifier, the biomass is pyrolyzed and gasified to produce fuel gas and charcoal. The fuel gas produced by the gasifier is supplied to the sludge drying furnace and the carbonization furnace through fuel gas pipeline I and fuel gas pipeline II, respectively. The charcoal produced by the gasifier enters the bagging machine through the pneumatic conveyor. After being filled by the bagging machine, it forms charcoal bags and is transported for sale. It is then used to produce activated carbon and charcoal. The flue gas produced by the bagging machine enters the pulse dust collector through centrifugal fan III for dust removal treatment and is then discharged.

[0007] Furthermore, the fuel gas required for the sludge drying furnace and carbonization furnace is provided by the gasification furnace, and no external fuel gas supply is required.

[0008] Furthermore, the high-temperature flue gas generated by the carbonization furnace is recycled into the sludge drying furnace via centrifugal fan IV, thereby realizing the recovery and utilization of heat energy, reducing heat energy loss, and improving energy utilization efficiency.

[0009] Furthermore, the high-temperature flue gas generated by the sludge drying furnace enters the cyclone dust collector through flue gas duct I. The dust generated after being processed by the cyclone dust collector enters the temporary storage silo together with the sludge via a screw conveyor. The high-temperature flue gas after dust removal enters the bag filter through flue gas duct II, and then enters the economizer. In the economizer, the high-temperature flue gas circulates and heats the water from the modified separation tank. The flue gas after being processed by the economizer enters the water washing spray tower and the alkali washing spray tower in sequence, and then enters the activated carbon adsorption tower through centrifugal fan II, and finally the pure tail gas is discharged.

[0010] Furthermore, a waste heat pipe is connected to the flue gas pipe II. A portion of the high-temperature flue gas in the flue gas pipe II enters the sludge drying furnace through the pipe and centrifugal fan I, thereby realizing the recovery and utilization of waste heat in the high-temperature flue gas.

[0011] Furthermore, the water used to heat the sludge in the modified separation tank enters the economizer through water pipe II. In the economizer, the high-temperature flue gas heats the water from the modified separation tank. The heated water then returns to the modified separation tank through a water pump and water pipe I, thus heating the sludge. The water undergoes a cycle of heating and cooling through the above process, and the heat energy in the high-temperature flue gas is recovered and utilized.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By combining sludge drying and carbonization processes with biomass gasification and charcoal production processes, the gas generated by biomass gasification is used to dry and carbonize sludge, achieving the joint treatment of sludge and biomass such as agricultural straw, rice husks, and rice husks, while producing finished charcoal products such as activated carbon and charcoal, as well as carbonized organic fertilizer with high organic matter content.

[0014] 2. By combining sludge drying and carbonization processes with biomass gasification and charcoal production processes, no external gas supply is required. The system itself can extract and recycle energy, reducing the consumption of gas energy.

[0015] 3. This invention adds a heatless sludge drying system before the sludge drying and carbonization process. High-pressure dewatering is achieved by mechanically pressing the sludge, dewatering the sludge with a water content of more than 85% to a water content of less than 55%, and then drying and carbonizing it, which improves the efficiency of drying and carbonization and reduces energy consumption.

[0016] 4. This invention utilizes the residual heat from sludge drying and carbonization to modify and heat-separate the sludge before treatment, thereby improving sludge dewatering efficiency and heat energy utilization rate, and reducing heat energy loss.

[0017] 5. This invention enables the heatless drying and carbonization of sludge with a water content of over 85%, reducing the water content to 0% and producing carbonized products with high organic matter content that can be used as organic fertilizers and soil conditioners. At the same time, this invention also enables the gasification and carbonization of biomass such as agricultural straw, rice husks, and rice husks, extracting and utilizing the fuel gas generated by biomass gasification, and producing finished carbon products that can be used as activated carbon and charcoal, thus realizing the co-production and treatment of sludge and biomass. Attached Figure Description

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a schematic diagram of the modified separator tank structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the interior of the modified separator of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the modified separation tank of this utility model.

[0022] In the diagram: 1. Sludge silo; 26. Economizer; 2. Biomass silo; 27. Water washing spray tower; 3. Sludge conveyor I; 28. Alkali washing spray tower; 4. Modified separator; 29. ​​Centrifugal fan II; 5. Sludge pump I; 30. 1. Activated carbon adsorption tower; 6. Vertical pressure sludge dewatering machine; 31. Lifting conveyor; 7. Screw conveyor; 32. Gasification furnace; 8. Sludge temporary storage silo; 33. Pneumatic conveyor; 9. Sludge conveyor II; 34. Bag filling machine; 10. Sludge drying furnace; 35. Centrifugal fan III; 11. Sludge conveyor III; 36. Pulse dust collector; 12. Intermediate and intermediate silos; 37. Carbon bags; 13. Sludge conveyor IV; 38. Gas pipeline I; 44. Carbonization furnace; 39. Gas pipeline II; 15. Water-cooled screw conveyor; 40. Centrifugal fan IV; 6. Carbonized product silo; 17. Flue gas pipeline I; 4.1. Tank; 18. 4.2 Cyclone dust collector; 4.3 Spiral water pipe; 4.4 Centrifugal fan I; 4.5 Water inlet; 4.6 Bag filter; 4.7 Water outlet; 4.8 Flue gas duct II; 4.9 Sludge pump II; 4.0 Waste heat duct; 4.10 Feed inlet; 4.11 Water pump; 4.2 Agitator motor; 4.2 Water pipe I; 4.3 Level gauge; 4.4 Water pipe II; 4.5 Agitator shaft; 4.16 Spiral blades. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. 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 a connection between the internal parts of two components. Example

[0024] like Figures 1-4As shown, the gas-carbon sludge co-production and treatment system includes: a modified separation tank 4, with a sludge silo 1 at the inlet of the modified separation tank 4. The sludge silo 1 is connected to the modified separation tank 4 via a sludge conveyor I3. The outlet of the modified separation tank 4 is pumped by a sludge pump I5 to a vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor 7 into a temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The sludge after dewatering by the vertical pressure sludge dewatering machine enters the sludge drying furnace 10 from the temporary storage silo 8 via a sludge conveyor II9 for pyrolysis and drying. The pyrolyzed sludge enters the intermediate silo 12 via a sludge conveyor III11, and then enters the carbonization furnace 14 via a sludge conveyor IV13 for carbonization treatment. The carbonized sludge enters the carbonized product silo 16 for storage via a water-cooled screw conveyor 15. The modified separation tank 4 includes a tank body 4.1.1, a spiral water pipe 4.2, a stirring shaft 4.9, a sludge pump 4.5, etc. The spiral water pipe is spirally wound around the tank body 4.1.1. The spiral water pipe 4.2 is welded integrally with the tank body 4.1.1. The spiral water pipe 4.2 has an inlet 4.3 and an outlet 4.4. High-temperature hot water enters from the inlet, flows through the spiral water pipe 4.2, and flows out from the outlet. The separation tank 4 is equipped with a feed inlet 4.6, a level gauge 4.8, and a reduction motor 4.7 on top. The reduction motor 4.7 is connected to the stirring shaft 4.9, which is inside the tank body 4.1.1. Spiral blades 4.10 are welded to the stirring shaft 4.9. Example

[0025] like Figures 1-4As shown, the gas-carbon sludge co-production and treatment system includes: a modified separation tank 4, with a sludge silo 1 at the inlet of the modified separation tank 4. The sludge silo 1 is connected to the modified separation tank 4 via a sludge conveyor I3. The outlet of the modified separation tank 4 is pumped by a sludge pump I5 to a vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor 7 into a temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The sludge after dewatering by the vertical pressure sludge dewatering machine enters the sludge drying furnace 10 from the temporary storage silo 8 via a sludge conveyor II9 for pyrolysis and drying. The pyrolyzed sludge enters the intermediate silo 12 via a sludge conveyor III11, and then enters the carbonization furnace 14 via a sludge conveyor IV13 for carbonization treatment. The carbonized sludge enters the carbonized product silo 16 for storage via a water-cooled screw conveyor 15. The fuel gas required for the sludge drying furnace 10 and carbonization furnace 14 is provided by the gasification furnace 32, and no external fuel gas supply is required. A biomass silo 2 is provided on one side of the modified separation tank 4. Biomass enters the gasification furnace 32 through the biomass silo 2 and the lifting conveyor 31. The biomass is pyrolyzed and gasified in the gasification furnace 32 to produce fuel gas and charcoal. The fuel gas produced by the gasification furnace 32 is supplied to the sludge drying furnace 10 and the carbonization furnace 14 through fuel gas pipelines 38 and 39, respectively. The charcoal produced by the gasification furnace 32 enters the bagging machine 34 through the pneumatic conveyor 33. After being filled by the bagging machine 34, it forms charcoal bags 37, which are then transported and sold for subsequent production of activated carbon and charcoal. The flue gas produced by the bagging machine 34 enters the pulse dust collector 36 through the centrifugal fan III 35 for dust removal treatment and is then discharged. Example

[0026] like Figures 1-4 As shown, the gas-carbon sludge co-production and treatment system includes: a modified separation tank 4, with a sludge silo 1 at the inlet of the modified separation tank 4. The sludge silo 1 is connected to the modified separation tank 4 via a sludge conveyor I3. The outlet of the modified separation tank 4 is pumped by a sludge pump I5 to a vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor 7 into a temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The sludge after dewatering by the vertical pressure sludge dewatering machine enters the sludge drying furnace 10 from the temporary storage silo 8 via a sludge conveyor II9 for pyrolysis and drying. The pyrolyzed sludge enters the intermediate silo 12 via a sludge conveyor III11, and then enters the carbonization furnace 14 via a sludge conveyor IV13 for carbonization treatment. The carbonized sludge enters the carbonized product silo 16 for storage via a water-cooled screw conveyor 15. The high-temperature flue gas generated by the carbonization furnace 14 is recycled into the sludge drying furnace 10 via the centrifugal fan IV40, thereby realizing the recovery and utilization of heat energy, reducing heat energy loss, and improving energy utilization efficiency. Example

[0027] like Figures 1-4As shown, the gas-carbon sludge co-production and treatment system includes: a modified separation tank 4, with a sludge silo 1 at the inlet of the modified separation tank 4. The sludge silo 1 is connected to the modified separation tank 4 via a sludge conveyor I3. The outlet of the modified separation tank 4 is pumped by a sludge pump I5 to a vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor 7 into a temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The sludge after dewatering by the vertical pressure sludge dewatering machine enters the sludge drying furnace 10 from the temporary storage silo 8 via a sludge conveyor II9 for pyrolysis and drying. The pyrolyzed sludge enters the intermediate silo 12 via a sludge conveyor III11, and then enters the carbonization furnace 14 via a sludge conveyor IV13 for carbonization treatment. The carbonized sludge enters the carbonized product silo 16 for storage via a water-cooled screw conveyor 15. The high-temperature flue gas generated by the sludge drying furnace 10 enters the cyclone dust collector 18 through the flue gas duct I17. The dust generated after being processed by the cyclone dust collector 18 enters the temporary storage silo 8 along with the sludge via the screw conveyor 7. The high-temperature flue gas after dust removal enters the bag filter 20 through the duct 27, and then enters the economizer 26. In the economizer 26, the high-temperature flue gas circulates and heats the water from the modified separation tank 4. The flue gas after being processed by the economizer 26 enters the water washing spray tower 27 and the alkaline washing spray tower 28 in sequence, and then enters the activated carbon adsorption tower 30 through the centrifugal fan II29, and then the pure tail gas is discharged. The flue gas duct II21 is connected to the waste heat duct 22. A part of the high-temperature flue gas in the flue gas duct II21 enters the sludge drying furnace 10 through the duct 22 and the centrifugal fan I19, realizing the recovery and utilization of waste heat in the high-temperature flue gas. Example

[0028] like Figures 1-4As shown, the gas-carbon sludge co-production and treatment system includes: a modified separation tank 4, with a sludge silo 1 at the inlet of the modified separation tank 4. The sludge silo 1 is connected to the modified separation tank 4 via a sludge conveyor I3. The outlet of the modified separation tank 4 is pumped by a sludge pump I5 to a vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor 7 into a temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The sludge after dewatering by the vertical pressure sludge dewatering machine enters the sludge drying furnace 10 from the temporary storage silo 8 via a sludge conveyor II9 for pyrolysis and drying. The pyrolyzed sludge enters the intermediate silo 12 via a sludge conveyor III11, and then enters the carbonization furnace 14 via a sludge conveyor IV13 for carbonization treatment. The carbonized sludge enters the carbonized product silo 16 for storage via a water-cooled screw conveyor 15. The water used to heat the sludge in the modified separation tank 4 enters the economizer 26 through water pipe II25. In the economizer 26, the high-temperature flue gas heats the water from the modified separation tank 4. The heated water then returns to the modified separation tank 4 through water pump 23 and water pipe I24, thus heating the sludge. The water undergoes a cycle of heating and cooling through the above process, and the heat energy in the high-temperature flue gas is recovered and utilized.

[0029] This invention includes a sludge mechanical dewatering system, a sludge pyrolysis and carbonization system, a biomass gasification system, a flue gas treatment system, and a waste heat recovery system. By mechanically dewatering and pyrolyzing sludge with a water content of over 85% and combining it with biomass gasification and carbonization processes using agricultural straw, rice husks, etc., the wet sludge is pyrolyzed and carbonized to a moisture content of 0, forming a carbonized product with a high organic matter content. Simultaneously, agricultural biomass is gasified and carbonized, utilizing the fuel gas generated from biomass gasification for sludge pyrolysis and carbonization, achieving self-sufficiency in energy and eliminating the need for external fuel gas input. Furthermore, the waste heat recovery system and sludge modification and separation system reduce energy consumption and improve the efficiency of sludge dewatering and pyrolysis carbonization.

[0030] Before pyrolysis and carbonization, the sludge is first heated and modified in the modification and separation tank 4, and then pumped by the sludge pump I5 to the vertical pressure sludge dewatering machine 6 for mechanical pressing and dewatering. After dewatering by the vertical pressure sludge dewatering machine, the sludge is then conveyed by the screw conveyor 7 into the temporary storage silo 8, and then subjected to pyrolysis and carbonization treatment. The beneficial effect is that the moisture content of the sludge after dewatering by the vertical pressure sludge dewatering machine has been reduced from more than 85% to less than 55%, reducing the energy consumption of subsequent pyrolysis and carbonization.

[0031] After the sludge enters the modified separation tank through the feed inlet 4.6, it is heated by the high-temperature hot water that continuously flows through the spiral water pipe 4.2. At the same time, the geared motor 4.7 drives the stirring shaft 4.9 to stir the sludge. The sludge is driven by the spiral blades 4.10 to surge in the separation tank, which facilitates full heating and changes the properties of the sludge.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas-carbon sludge co-production and treatment system, including: A modified separation tank (4) is provided with a sludge silo (1) at its inlet. The sludge silo (1) is connected to the modified separation tank (4) via a sludge conveyor I (3). The modified separation tank (4) is characterized in that its outlet is conveyed by a sludge pump I (5) to a vertical pressure sludge dewatering machine (6) for mechanical pressing and dewatering. The sludge after dewatering by the vertical pressure sludge dewatering machine is then conveyed by a screw conveyor (7) into a temporary storage silo (8), and then... After undergoing pyrolysis and carbonization treatment, the sludge dewatered by the vertical pressure sludge dewatering machine (6) is transferred from the temporary storage silo (8) to the sludge conveyor II (9) and then to the sludge drying furnace (10) for pyrolysis and drying. The pyrolyzed sludge is transferred to the intermediate silo (12) via the sludge conveyor III (11) and then to the carbonization furnace (14) via the sludge conveyor IV (13) for carbonization treatment. The carbonized sludge is then transferred to the carbonized product silo (16) via the water-cooled screw conveyor (15) for storage.

2. The gas-carbon sludge co-production and treatment system according to claim 1, characterized in that: The modified separation tank (4) includes a tank body (4.1), a spiral water pipe (4.2), a stirring shaft (4.9), and a sludge pump II (4.5). The spiral water pipe (4.2) is spirally wrapped around the tank body (4.1). The spiral water pipe (4.2) is welded to the tank body (4.1). The spiral water pipe (4.2) has an inlet (4.3) and an outlet (4.4). High-temperature hot water enters from the inlet (4.3), passes through the spiral water pipe (4.2), and flows out from the outlet (4.4). The modified separation tank (4) is equipped with a feed inlet (4.6), a level gauge (4.8), and a geared motor (4.7) on top. The geared motor (4.7) is connected to the stirring shaft (4.9). The stirring shaft (4.9) is inside the tank body (4.1). Spiral blades (4.10) are welded on the stirring shaft (4.9).

3. The gas-carbon sludge co-production and treatment system according to claim 1, characterized in that: The modified separation tank (4) is provided with a biomass silo (2) on one side. Biomass enters the gasifier (32) through the biomass silo (2) and the lifting conveyor (31). The biomass is pyrolyzed and gasified in the gasifier (32) to produce fuel gas and charcoal. The fuel gas produced by the gasifier (32) is supplied to the sludge drying furnace (10) and the carbonization furnace (14) through the fuel gas pipeline I (38) and the fuel gas pipeline II (39) respectively. The charcoal produced by the gasifier (32) enters the bagging machine (34) through the pneumatic conveyor (33). After being filled by the bagging machine (34), charcoal bags (37) are formed and transported for sale. They are then used to produce activated carbon and charcoal. The flue gas produced by the bagging machine (34) enters the pulse dust collector (36) through the centrifugal fan III (35) for dust removal and is then discharged.

4. The gas-carbon sludge co-production and treatment system according to claim 3, characterized in that: The gas required for the sludge drying furnace (10) and carbonization furnace (14) is provided by the gasification furnace (32), and no external gas supply is required.

5. The gas-carbon sludge co-production and treatment system according to claim 1, characterized in that: The high-temperature flue gas generated by the carbonization furnace (14) is recycled into the sludge drying furnace (10) by the centrifugal fan IV (40), thereby realizing the recovery and utilization of heat energy, reducing heat energy loss and improving energy utilization rate.

6. The gas-carbon sludge co-production and treatment system according to claim 1, characterized in that: The high-temperature flue gas generated by the sludge drying furnace (10) enters the cyclone dust collector (18) through flue gas pipe I (17). The dust generated after being processed by the cyclone dust collector (18) enters the temporary storage silo (8) together with the sludge through the screw conveyor (7). The high-temperature flue gas after dust removal enters the bag filter (20) through flue gas pipe II (21), and then enters the economizer (26). The high-temperature flue gas circulates and heats the water from the modified separation tank (4) in the economizer (26). The flue gas after being processed by the economizer (26) enters the water washing spray tower (27) and the alkali washing spray tower (28) in sequence, and enters the activated carbon adsorption tower (30) through the centrifugal fan II (29). Then the pure tail gas is discharged.

7. The gas-carbon sludge co-production and treatment system according to claim 6, characterized in that: The flue gas duct II (21) is connected to a waste heat duct (22). A portion of the high-temperature flue gas in the flue gas duct II (21) enters the sludge drying furnace (10) through the duct (22) and the centrifugal fan I (19), thereby realizing the recovery and utilization of waste heat in the high-temperature flue gas.

8. The gas-carbon sludge co-production and treatment system according to claim 1, characterized in that: The water used to heat the sludge in the modified separation tank (4) enters the economizer (26) through water pipe II (25). In the economizer (26), the high-temperature flue gas heats the water from the modified separation tank (4). The heated water returns to the modified separation tank (4) through water pump (23) and water pipe I (24) to heat the sludge. The water is circulated and heated and cooled through the above process, and the heat energy in the high-temperature flue gas is recovered and utilized.

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