CN-224222314-U - Treatment system for hazardous waste renewable materials and carbonaceous materials

CN224222314UCN 224222314 UCN224222314 UCN 224222314UCN-224222314-U

Abstract

The utility model discloses a treatment system for hazardous waste renewable materials and carbonaceous materials, and relates to the technical field of hazardous waste material recycling harmless utilization. The treatment system comprises a first furnace body and a second furnace body, wherein the first furnace body is used for pressurizing high-temperature pyrolysis gasification of hazardous waste renewable materials to generate ultra-high temperature molten slag liquid and ultra-high temperature first synthesis gas, the first synthesis gas is used for providing reaction conditions for pressurizing fast fluidization hydro-pyrolysis gasification reaction of carbonaceous materials entering the second furnace body to prepare second synthesis gas, and the second synthesis gas is used for providing reducing agent and raw materials for the first furnace body by separating hot coke powder carried by a second synthesis gas lock. The treatment system provided by the utility model has the advantages that through the thermal coupling integration of the first furnace body and the second furnace body, primary and secondary hazardous wastes generated during the treatment of renewable materials such as hazardous wastes are effectively avoided, the heat utilization efficiency of the system is improved, the production operation and enterprise operation cost is reduced, and the recycling, harmless, economical and efficient utilization of the renewable materials such as hazardous wastes is realized.

Inventors

LIU HONGYAN
ZHOU HUAIZU
YANG SHOUQING
YUAN YUAN
CHEN HUI
ZHOU DAPENG
LIU BIN

Assignees

上海鑫兴化工科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250515

Claims (10)

1. A system for treating hazardous waste renewable materials and carbonaceous materials, comprising: The first furnace body comprises a first reaction cavity and a slag pool which are sequentially arranged, the first furnace body is provided with a first feed inlet, a first air inlet and a first discharge outlet, the first feed inlet is used for conveying hazardous waste renewable materials and first carbonaceous materials, the first air inlet is used for conveying gasifying agents, the hazardous waste renewable materials, the first carbonaceous materials and the gasifying agents flow downwards in the first reaction cavity and generate slag and first synthetic gas, the slag extractor is arranged at the first discharge outlet and is used for discharging the slag, the first furnace body or the slag extractor is provided with an air outlet used for discharging the first synthetic gas, and the slag extractor is provided with a first spray gun used for spraying the gasifying agents to the slag; The second furnace body comprises a gas mixing chamber, a fluidization gas chamber and a second reaction chamber which are sequentially arranged, the second furnace body is provided with a second air inlet and a third air inlet which are communicated with the gas mixing chamber, a second feeding port and a second discharging port which are communicated with the second reaction chamber, the second air inlet is communicated with the air outlet through a pipeline, the third air inlet is used for conveying hydrogen, the second feeding port is used for conveying a second carbon-containing material, and the second carbon-containing material, the hydrogen and the first synthesis gas are parallelly and rapidly mixed in the second reaction chamber to form fluidization so as to generate second synthesis gas and solid materials through pyrolysis gasification; the cyclone separator and the metal sintering filter are sequentially arranged at the second discharge port, and are used for separating the second synthesis gas and solid materials carried out by the second synthesis gas, conveying the separated synthesis gas to a downstream gas treatment device, collecting the separated solid materials and conveying the separated solid materials to the first reaction cavity and the slag pool.
2. The hazardous waste renewable materials and carbonaceous materials processing system of claim 1, wherein the slag extractor comprises a tube, one end of the tube is connected to the first discharge port, the tube is configured to store the slag, the first lance is disposed on the tube, and the tube is configured with a second lance configured to inject a lifting gas into the slag in the tube to control intermittent discharge of the slag.
3. The hazardous waste renewable material and carbonaceous material treatment system according to claim 2, wherein the output end of the slag extractor is sequentially connected with a chilled slag collecting tank, a slag locking tank and a first disc valve, the chilled slag collecting tank is provided with a circulating cooling assembly and is used for receiving molten slag discharged by the slag extractor, cooling and quenching the molten slag into glass bodies and elemental metal particles, and the slag locking tank and the first disc valve are used for collecting and decompressing the glass bodies and the elemental metal particles.
4. The hazardous waste renewable materials and carbonaceous materials processing system according to claim 2, wherein the first furnace body or the slag extractor is provided with a gas collection chamber corresponding to the gas outlet, the gas collection chamber is communicated with the slag pool, and the first synthesis gas is used for being discharged from the gas collection chamber and the gas outlet after passing through the slag bath.
5. The hazardous waste renewable material and carbonaceous material treatment system according to claim 4, wherein a first cone and a second cone are disposed in the first furnace body, the diameters of the cross sections of the first cone and the second cone are reduced along the direction close to the first discharge port, the first cone is disposed on one side of the second cone close to the first discharge port, a discharge pipe is connected between the end of the first cone and the first discharge port, the slag pool is limited by the discharge pipe and one side of the first cone away from the first discharge port, the exhaust port is disposed between the first cone and the second cone, a part of the second cone is immersed in the slag liquid in the slag pool, and the first cone, the second cone and the inner wall of the first furnace body limit the gas collection cavity on the slag liquid surface of the slag pool.
6. The hazardous waste renewable material and carbonaceous material processing system according to claim 4, wherein the pipe body is connected with an extension pipe section which is obliquely arranged, an end opening of the extension pipe section, which is far away from the pipe body, forms the exhaust port, the exhaust port is arranged at one side, which is close to the first discharge port, of a joint of the extension pipe section and the pipe body, slag flows in the extension pipe section, and the gas collection cavity is limited between a slag liquid level in the extension pipe section and the exhaust port.
7. The hazardous waste renewable material and carbonaceous material treatment system according to claim 1, wherein a first treatment unit for treating the separated solid material is arranged between the cyclone separator and the first furnace body, a second treatment unit for treating the separated solid material is arranged between the metal sintering filter and the first furnace body, the first treatment unit and the second treatment unit have the same structure, and the first treatment unit comprises an ash collecting tank, a pressure filling and releasing lock hopper and second disc valves arranged at two ends of the pressure filling and releasing lock hopper in sequence.
8. The hazardous waste renewable materials and carbonaceous materials handling system of claim 7, comprising a high pressure feeder device disposed downstream of the first and second processing units, an output of the high pressure feeder device being connected to the first feed port of the first furnace for transporting solid materials.
9. The hazardous waste renewable materials and carbonaceous materials processing system according to claim 1, wherein the first feed port comprises a first sub feed port and a second sub feed port, the first sub feed port is arranged at the top of the first furnace body and is used for conveying the hazardous waste renewable materials, and the second sub feed port is arranged at the side wall of the first furnace body and is used for conveying the first carbonaceous materials; Including throwing the material subassembly, throw the material subassembly and include surge bin, material lock fill, upper disc valve, lower disc valve, conveying pipeline and receiving hopper, the surge bin is located first sub-feed inlet, material lock fill intercommunication is located the surge bin top, upper disc valve with the lower disc valve interval is located the material lock is fought, the conveying pipeline intercommunication is located the material lock is fought tip, the receiving hopper intercommunication is located the both ends of conveying pipeline and is used for collecting the material.
10. The hazardous waste renewable materials and carbonaceous materials processing system according to claim 9, wherein the receiving hopper is provided with a power valve, the power valve is used for extruding materials in a first direction in the receiving hopper, the material conveying pipeline is provided with a pressing piston and a stop valve corresponding to the receiving hopper, the pressing piston can move in a second direction perpendicular to the first direction, the position of the stop valve in the first direction is adjustable, the pressing piston and the stop valve are used for extruding materials in the second direction to form a material block, and the first furnace is internally provided with a stirrer.

Description

Treatment system for hazardous waste renewable materials and carbonaceous materials Technical Field The utility model relates to the technical field of recycling harmless utilization of hazardous waste renewable materials, in particular to a treatment system of hazardous waste renewable materials and carbonaceous materials. Background In the related art, various gasifier technologies such as a rotary kiln, a fixed bed, a moving bed, a fluidized bed, an entrained flow bed and the like are widely adopted, waste such as hazardous waste is subjected to incineration or pyrolysis gasification treatment, and carbonaceous materials such as coal and the waste such as hazardous waste are subjected to pyrolysis gasification to prepare synthesis gas in cooperation with recycling treatment. However, when the incineration rotary kiln furnace, coal, gas, electric or plasma high-temperature slag furnace technology is used for incinerating, pyrolyzing and gasifying wastes such as hazardous wastes, secondary hazardous wastes such as fly ash and slag carrying dioxin and other organic matters and trace heavy metal pollutants cannot be avoided, harmless landfill is carried out on the secondary hazardous wastes, the treatment process is complex and high in cost, hidden danger of polluting the land, water body and environment exists, various gasifier technologies are used for pyrolyzing and gasifying wastes such as carbon-containing materials such as coal and hazardous wastes to cooperatively recycle the synthesis gas prepared by the low-value treatment, the synthesis gas is only low-value product gas containing carbon monoxide CO and hydrogen H2 or a small amount of byproduct natural gas CH4 and coal tar, the flow of pyrolysis and gasification physical and chemical reactions is long and high in consumption, the technological conditions of a device downstream of the gasifier are limited, and the pyrolysis gasified high-temperature or ultra-high-temperature synthesis gas only needs to be produced into 200-500 ℃ low-temperature circulating water or low-temperature synthesis gas after being discharged out of the kiln, and the high-temperature synthesis gas is wasted by a high-temperature SHELL-level high-temperature environment-grade synthesis gas (the high-grade high-efficiency device is utilized by a high-grade device is wasted by a high-level device of the high-cost device of the invention). Disclosure of utility model The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a treatment system for hazardous waste renewable materials and carbonaceous materials, and the application of the treatment system for hazardous waste renewable materials and carbonaceous materials can effectively avoid the generation of secondary hazardous waste such as fly ash and slag carrying dioxin and other organic matters and trace heavy metal pollutants, reduce the energy consumption and the running cost of the system, greatly improve the added value of the material pyrolysis gasification slag product, improve the running and resource utilization efficiency of the system, and realize the recycling, cleanness, harmlessness, economy and high efficiency utilization of hazardous waste renewable materials and other carbonaceous materials. The treatment system for hazardous waste renewable materials and carbonaceous materials according to the embodiment of the utility model comprises: The first furnace body comprises a first reaction cavity and a slag pool which are sequentially arranged, the first furnace body is provided with a first feed inlet, a first air inlet and a first discharge outlet, the first feed inlet is used for conveying hazardous waste renewable materials and first carbonaceous materials, the first air inlet is used for conveying gasifying agents, the hazardous waste renewable materials, the first carbonaceous materials and the gasifying agents flow downwards in the first reaction cavity and generate slag and first synthetic gas, the slag extractor is arranged at the first discharge outlet and is used for discharging the slag, the first furnace body or the slag extractor is provided with an air outlet used for discharging the first synthetic gas, and the slag extractor is provided with a first spray gun used for spraying the gasifying agents to the slag; The second furnace body comprises a gas mixing chamber, a fluidization gas chamber and a second reaction chamber which are sequentially arranged, the second furnace body is provided with a second air inlet and a third air inlet which are communicated with the gas mixing chamber, a second feeding port and a second discharging port which are communicated with the second reaction chamber, the second air inlet is communicated with the air outlet through a pipeline, the third air inlet is used for conveying hydrogen, the second feeding port is used for conveying a second carbon-contai