Fluidized bed process gasification and melting integrated furnace

Abstract

The utility model discloses a fluidized bed process gasification and melting integrated furnace, which relates to the technical field of solid waste treatment, and comprises a gasification furnace body, a gasification assembly, a melting furnace body and a melting assembly, the top of the melting furnace body extends into the gasification furnace body through the bottom of the gasification furnace body and is provided with a melting furnace inlet; the gasification assembly comprises a gasification igniter, a gasification raw material feeding mechanism, a hot blast stove assembly and a gasification gas filling pipe; the melting assembly comprises a melting igniter, a melting raw material feeding mechanism and a melting gas filling pipe; the gasification furnace body and the melting furnace body are combined, material conveying between the gasification furnace body and the melting furnace body is achieved through airflow generated by the hot blast stove assembly, the integrated furnace design is achieved, and the occupied space, the input cost and the maintenance cost are reduced; moreover, the hot-blast stove assembly adopts a bottom air inlet design, so that the contact area with gasified raw materials is increased, the gasification efficiency is improved, and the production efficiency is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of solid waste treatment, and in particular to a fluidized bed process gasification and melting integrated furnace. Background Art

[0002] Gasification and melting technology is an important development direction in the field of solid waste treatment at present, combining the advantages of solid waste gasification and ash melting technology.

[0003] The current gasification and melting technology is to separate the gasification part and the melting part into one furnace, namely a gasification furnace and a melting furnace, wherein the gasification furnace and the melting furnace are connected by a conveying and transporting system to transport the gasification synthesis gas and fly ash from the gasification furnace to the melting furnace.

[0004] The above-mentioned gasification and melting method still has some shortcomings:

[0005] First, the investment cost is high. Two furnaces and a set of conveying and transfer systems require a large initial investment.

[0006] Second, it occupies a large space.

[0007] Third, the operating efficiency is low because a transportation and transfer system is required, and the gasified synthesis gas and fly ash will lose some heat in the transportation and transfer system.

[0008] Fourth, in order to ensure the normal operation of the two furnaces and a set of conveying and transfer systems, the cost of regular maintenance is high. Utility Model Content

[0009] In view of this, the purpose of the present application is to provide a fluidized bed process gasification and melting integrated furnace to solve the technical problems of high cost and low efficiency of the existing gasification and melting methods.

[0010] In order to achieve the above technical objectives, the present application provides a fluidized bed process gasification and melting integrated furnace, including a gasification furnace body, a gasification component, a melting furnace body and a melting component;

[0011] The top of the melting furnace body extends into the gasification furnace body through the bottom of the gasification furnace body, and is provided with a melting furnace inlet;

[0012] The gasification assembly includes a gasification igniter, a gasification raw material feeding mechanism, a hot blast furnace assembly and a gasification gas adding pipe;

[0013] The air outlet end of the hot blast furnace assembly is connected to the bottom of the outer peripheral wall of the gasification furnace body;

[0014] An exhaust port is provided on the outer peripheral wall of the furnace body portion of the melting furnace body located outside the gasification furnace body;

[0015] The discharge end of the gasification raw material feeding mechanism is connected to the bottom of the outer peripheral wall of the gasification furnace body;

[0016] The gasification igniter is installed on the gasification furnace body and is used to ignite the gasification raw material to generate flue gas;

[0017] The gasification gas adding pipe is installed on the gasification furnace body and is used to add gasification agent so that the gasification raw materials in the gasification furnace body maintain an incomplete combustion state;

[0018] The melting assembly includes a melting igniter, a melting raw material feeding mechanism and a melting gas adding pipe;

[0019] The discharge end of the molten raw material feeding mechanism is connected to the top of the gasification furnace body facing the inlet of the molten furnace;

[0020] The melting igniter is installed on the gasification furnace body and extends into the melting furnace body, and is used to ignite the flue gas and the molten raw material;

[0021] The melting gas adding pipe is installed on the gasification furnace body and extends into the melting furnace body, and is used for adding gasifying agent so that the flue gas maintains a repeated combustion state.

[0022] Furthermore, the gasification assembly also includes a crushing device;

[0023] The crushing device is installed in the gasification furnace body, and the gasification furnace body is divided into a gasification lower chamber and a gasification upper chamber;

[0024] The gasification igniter and the gasification gas adding pipe extend into the gasification lower chamber;

[0025] The crushing device is used to crush the ash in the flue gas transported from the gasification lower chamber to the gasification upper chamber.

[0026] Further, the crushing device includes a plurality of cutting and crushing knives;

[0027] The plurality of cutting and crushing knives are arranged circumferentially and are divided into multiple layers from bottom to top;

[0028] The cutting and crushing knives of adjacent layers are staggeredly distributed.

[0029] Furthermore, the melting assembly further comprises a fixed wind hood;

[0030] The fixed wind hood is installed on the top wall of the gasification furnace body at a position facing the inlet of the melting furnace;

[0031] The wind-fixing cover is in the shape of an inverted frustum;

[0032] The discharging end of the molten raw material conveying mechanism is connected to the top of the gasification furnace body corresponding to the position of the fixed wind hood.

[0033] Furthermore, the melting assembly further comprises a cyclone guide piece;

[0034] The cyclone guide blade is installed in the melting furnace body and is used to guide the airflow to spiral downward along the inner wall of the melting furnace body.

[0035] Furthermore, the melting assembly further comprises a slag tank;

[0036] The slag groove is arranged on the inner wall of the melting furnace body and is located below the cyclone guide piece.

[0037] Furthermore, the slag tank is composed of a plurality of tank bodies;

[0038] Each of the trough bodies can be installed on the melting furnace body in a pull-out manner.

[0039] Further, it also includes a chilling conveying device;

[0040] The bottom of the melting furnace body is provided with a melting outlet;

[0041] The quenching conveying device is connected to the melting outlet.

[0042] Furthermore, the air outlet direction of the air outlet end of the hot blast stove assembly is tangent to the outer peripheral wall of the gasification furnace body.

[0043] Furthermore, furnace walls composed of multiple layers of fireproof material are provided inside the gasification furnace body and inside the melting furnace body.

[0044] It can be seen from the above technical solutions that the fluidized bed process gasification and melting integrated furnace designed in this application has the following beneficial effects:

[0045] 1. Combine the gasification furnace body and the melting furnace body and use the airflow generated by the hot blast furnace assembly to realize the material transportation between the gasification furnace body and the melting furnace body, so as to realize the integrated furnace design; compared with the traditional two furnaces + one set of conveying and transfer system design, it reduces the space occupied, investment cost and maintenance cost, and the waste heat of the melting furnace body can be used by the gasification furnace body, which can also reduce the consumption of energy such as natural gas.

[0046] 2. The hot air furnace assembly adopts a bottom air inlet design to increase the contact area with the gasified raw materials, improve the gasification efficiency, and thus improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] Figure 1 This is a schematic diagram of the structure of a fluidized bed process gasification and melting integrated furnace provided in this application;

[0049] Figure 2 A schematic diagram of the flow of gas during operation of a fluidized bed process gasification and melting integrated furnace provided in this application;

[0050] In the figure: 1. Melting igniter; 2. Melting gasification pipe; 3. Gasification furnace body; 4. Gasification gasification pipe; 5. Gasification igniter; 6. Gasification raw material feeding mechanism; 7. Slag trough; 8. Melting furnace body; 9. Quenching conveying device; 10. Molten raw material feeding mechanism; 11. Solid wind hood; 12. Cyclone guide vane; 13. Cutting and crushing knife; 14. Hot air furnace assembly; 15. Exhaust port. DETAILED DESCRIPTION

[0051] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0052] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0053] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0054] The embodiment of the present application discloses a fluidized bed process gasification and melting integrated furnace.

[0055] See also Figure 1 An embodiment of a fluidized bed process gasification and melting integrated furnace provided in the embodiments of the present application includes:

[0056] Gasification furnace body 3, gasification assembly, melting furnace body 8 and melting assembly.

[0057] The top of the melting furnace body 8 extends into the gasification furnace body 3 through the bottom of the gasification furnace body 3, and is provided with a melting furnace inlet. Specifically, the gasification furnace body 3 includes an inner furnace wall and an outer furnace wall, and the inner furnace wall of the gasification furnace body 3 is connected to the furnace wall of the melting furnace body 8.

[0058] The gasification component includes a gasification igniter 5 , a gasification raw material feeding mechanism 6 , a hot blast furnace assembly 14 and a gasification gas adding pipe 4 .

[0059] The air outlet of the hot blast furnace assembly 14 is connected to the bottom of the outer peripheral wall of the gasification furnace body 3, and the air inlet of the hot blast furnace assembly 14 is connected to the fan. Specifically, one side of the bottom of the gasification furnace body 3 is connected to the hot blast furnace assembly 14 to achieve bottom air inlet; moreover, the gasification raw material feeding mechanism 6 is designed to be equipped with a variable frequency motor, which can more accurately control the material feeding amount.

[0060] An exhaust port 15 for exhausting high-temperature gas is provided on the outer peripheral wall of the furnace body portion of the melting furnace body 8 located outside the gasification furnace body 3 , and the exhaust port 15 can be connected to a steam boiler.

[0061] The discharge end of the gasification raw material feeding mechanism 6 is connected to the bottom position of the outer peripheral wall of the gasification furnace body 3. Specifically, the other side of the bottom of the gasification furnace body 3 is connected to the gasification raw material feeding mechanism 6.

[0062] The gasification raw material feeding mechanism 6 is equipped with a variable frequency motor, so that the material feeding amount can be controlled more accurately.

[0063] The gasification igniter 5 is installed on the gasification furnace body 3, and is used to ignite the gasification raw material to generate flue gas; the gasification gas adding pipe 4 is installed on the gasification furnace body 3, and is used to add gasification agent so that the gasification raw material in the gasification furnace body 3 maintains an incomplete combustion state; specifically, the gasification igniter 5 and the gasification gas adding pipe 4 are arranged above the position where the gasification furnace body 3 is connected to the gasification raw material feeding mechanism 6.

[0064] The melting assembly comprises a melting igniter 1 , a melting raw material feeding mechanism 10 and a melting gas adding pipe 2 .

[0065] The discharge end of the molten raw material feeding mechanism 10 is connected to the top of the gasification furnace body 3, which is directly opposite to the melting furnace inlet. Specifically, the molten raw material feeding mechanism 10 is also equipped with a variable frequency motor to more accurately control the material feeding amount.

[0066] The melting igniter 1 is installed at the top of the gasification furnace body 3 corresponding to the position above the melting furnace body 8, and extends into the melting furnace body 8, and is used to ignite the flue gas and the molten raw material. The melting gas adding pipe 2 is installed at the top of the gasification furnace body 3 corresponding to the position above the melting furnace body 8, and extends into the melting furnace body 8, and is used to add a gasifying agent to keep the flue gas in a state of repeated combustion.

[0067] The fluidized bed process gasification and melting integrated furnace designed in this application has the following beneficial effects:

[0068] 1. The gasification furnace body 3 and the melting furnace body 8 are combined and the airflow generated by the hot blast furnace assembly 14 is used to realize the material transportation between the gasification furnace body 3 and the melting furnace body 8, thereby realizing an integrated furnace design; compared with the traditional two furnaces + one set of conveying and transfer system design, the space occupied, investment cost and maintenance cost are reduced, and the waste heat of the melting furnace body 8 can be used by the gasification furnace body 3, and the consumption of energy such as natural gas can also be reduced.

[0069] 2. The hot blast furnace assembly 14 adopts a bottom air inlet design to increase the contact area with the gasified raw materials, improve the gasification efficiency, and thus improve the production efficiency.

[0070] The above is an embodiment of a fluidized bed process gasification and melting integrated furnace provided in the embodiment of the present application. The following is an embodiment of a fluidized bed process gasification and melting integrated furnace provided in the embodiment of the present application. For details, please refer to Figure 1 to Figure 2 .

[0071] Based on the solution of the above embodiment 1:

[0072] Furthermore, the applicant has found through research that the existing gasification and melting method still has shortcomings: the ash treatment rate is not 100%, and the large-particle ash remaining after gasification in the gasifier cannot be taken away by the airflow formed by the synthesis gas, and can only be discharged at the bottom of the gasifier, requiring further treatment. In order to solve the above, the gasification component is also designed to include a crushing device.

[0073] The crushing device is installed in the gasification furnace body 3 and arranged near the bottom, dividing the gasification furnace body 3 into a gasification lower chamber and a gasification upper chamber. The gasification igniter 5 and the gasification gasification pipe 4 extend into the gasification lower chamber.

[0074] The crushing device is used to crush the large-particle ash in the flue gas transported from the gasification lower chamber to the gasification upper chamber, so that the ash can eventually be carried away by the airflow, achieving the goal of 100% ash treatment rate.

[0075] Furthermore, with respect to the design of the crushing device, it includes a plurality of cutting and crushing knives 13, which may be in a rhombus shape or the like, and have a blade structure, and there is no specific limitation thereto.

[0076] The plurality of cutting and crushing knives 13 are arranged circumferentially and are distributed in multiple layers from bottom to top, and the cutting and crushing knives 13 in adjacent layers are distributed in a staggered manner to improve crushing efficiency.

[0077] The large-particle ash will be driven by the airflow to continuously contact and be broken by the cutting and crushing blade 13 until it is brought into the melting furnace body 8 by the airflow, thereby improving the gasification efficiency of the material and the production efficiency.

[0078] Furthermore, the melting assembly also includes a fixed wind hood 11.

[0079] The solid wind hood 11 is installed on the top wall of the gasification furnace body 3 facing the melting furnace inlet, and the solid wind hood 11 is in the shape of an inverted cone; the discharge end of the molten raw material conveying mechanism is connected to the top of the gasification furnace body 3 corresponding to the position of the solid wind hood 11.

[0080] By providing the wind fixing cover 11, the airflow gathered from the bottom can be prevented from generating vortices.

[0081] Furthermore, the melting assembly also includes a cyclone guide vane 12 .

[0082] The cyclone guide blade 12 is installed on the upper inner side of the melting furnace body 8 to guide the airflow to spiral downward along the inner wall of the melting furnace body 8. Compared with the straight-falling method, the spiral movement method can allow the molten material to stay in the high-temperature environment for a sufficient time, further improving the melting effect.

[0083] Furthermore, the melting component further comprises a slag trough 7, which is arranged on the inner wall of the melting furnace body 8 and is located below the cyclone guide piece 12. Due to the collection of molten slag, the slag is kept in a molten state in the slag trough 7. When the slag trough 7 is full, the molten slag overflows. The purpose of setting the slag trough 7 is to gather the slag together and then let it fall in the form of overflow, so that the fallen slag can form a glass body with the same particle size and stability; when the slag trough 7 is not provided, the glass body formed is of different sizes and is mostly fine glass body.

[0084] In the present application, the exhaust port 15 is disposed below the slag tank 7 .

[0085] Furthermore, in order to facilitate installation, disassembly and maintenance, the slag trough 7 is designed to be assembled from a plurality of trough bodies, each of which can be pulled out and installed on the melting furnace body 8, that is, the slag trough 7 adopts a pull-out and detachable design.

[0086] Furthermore, a chilling conveying device 9 is included. A molten outlet is provided at the bottom of the melting furnace body 8, and the chilling conveying device 9 is connected to the molten outlet. The chilling conveying device 9 is an existing device, which is provided with a cold water tank and a conveying device for conveying materials, and is not specifically limited. The ash overflowing from the slag tank 7 enters the cold water tank in the chilling conveying device 9 and is cooled by cooling water, and the molten ash is converted into a glass body.

[0087] Furthermore, the air outlet direction of the air outlet end of the hot blast furnace assembly 14 can be designed to be tangent to the outer peripheral wall of the gasification furnace body 3, so as to be in more complete contact with the gasification material, thereby further improving the gasification efficiency.

[0088] Furthermore, furnace walls composed of multiple layers of fireproof material are provided in the gasification furnace body 3 and the melting furnace body 8. Specifically, furnace walls composed of multiple layers of high-temperature resistant fireproof material are provided on the outer side of the inner furnace wall and the inner side of the outer furnace wall of the gasification furnace body 3, and furnace walls composed of multiple layers of high-temperature resistant fireproof material are provided on the inner side of the melting furnace body 8.

[0089] like Figure 1 as well as Figure 2 As shown, the working process of the fluidized bed process gasification and melting integrated furnace designed in this application is as follows:

[0090] 1. The fan is started, and the air reaches the hot blast furnace assembly 14 through the fan and the air duct connecting the fan and the hot blast furnace assembly 14. The igniter of the hot blast furnace assembly 14 ignites the natural gas to heat the delivered air, and the heated high-temperature air reaches the inside of the gasification furnace body 3 through the pipeline, and the high-temperature air heats the entire gasification furnace body 3 to a predetermined temperature.

[0091] 2. The gasification raw material feeding mechanism is started, and the material is fed into the gasification furnace body 3 according to the preset feed amount. The high-temperature air drives the material to be lifted from the bottom of the gasification furnace body 3 and fully contacts it. The gasification igniter 5 is started to ignite the gasification raw material. At the same time, a certain proportion of oxidant is added through the gasification gas adding pipe 4 to ensure that the gasification raw material maintains an incomplete combustion state.

[0092] 3. The small particles of ash produced by the combustion of the gasified raw materials can be smoothly driven by the airflow through the cutting and crushing blades 13 to reach the melting furnace body 8, while the large particles of ash will continuously hit the cutting and crushing blades 13 to be crushed until they can be carried by the airflow into the melting furnace body 8.

[0093] 4. High-temperature air gasifies the gasified raw materials at high temperature, and the generated flue gas flows to the fixed hood.

[0094] 5. The molten raw material feeding mechanism 10 is started, and the high calorific value additives (such as biomass, waste fuel oil, etc.), hazardous solid waste and waste glass (or other silicon-containing solid waste, etc.) powders are mixed in a certain proportion and transported to the gasification furnace body 3, and mixed with the high-temperature gas through the inner side of the solid wind hood 11 to reach the melting furnace body 8. The melting igniter 1 is started to ignite the flue gas and the molten raw materials. At the same time, a certain proportion of oxidant is added to the melting gas pipe to ensure that the flue gas maintains a fully burned state. After the flue gas mixed with air is ignited, violent combustion will occur. The temperature in the melting furnace will gradually rise and can reach above 1200°C, and the center temperature can reach above 1500°C.

[0095] 6. The high-temperature gas carries the molten ash in a spiral downward along the inner wall of the melting furnace body 8 under the action of the cyclone guide blades 12, and gathers in the slag tank 7. The ash is kept in a molten state in the slag tank 7. When the slag tank 7 is full, the molten ash overflows and falls into the cold water tank inside the quenching conveying device 9 under the influence of gravity. The molten ash is transformed into vitrified, forming a vitreous body, and then output through the conveying device for the next process.

[0096] The fluidized bed process gasification and melting integrated furnace designed in the present application can achieve high-temperature cracking of harmful substances and melting of residues through a high-temperature environment (waste glass and ash can be added and mixed in a certain proportion, and the residue after gasification and melting of the ash can be transformed into glass for harmless treatment). At the same time, the gas emissions meet national standards, and the subsequent solid treatment process is simple, which has good application prospects.

[0097] The above is a detailed introduction to a fluidized bed process gasification and melting integrated furnace provided in the present application. For a general technician in this field, according to the ideas of the embodiments of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fluidized bed process gasification and melting integrated furnace, characterized in that: It comprises a gasification furnace body (3), a gasification component, a melting furnace body (8) and a melting component; The top of the melting furnace body (8) extends into the gasification furnace body (3) through the bottom of the gasification furnace body (3) and is provided with a melting furnace inlet; The gasification component comprises a gasification igniter (5), a gasification raw material feeding mechanism (6), a hot blast furnace assembly (14) and a gasification gas adding pipe (4); The air outlet end of the hot blast furnace assembly (14) is connected to the bottom of the outer peripheral wall of the gasification furnace body (3); An exhaust port (15) is provided on the outer peripheral wall of the furnace body portion of the melting furnace body (8) located outside the gasification furnace body (3); The discharge end of the gasification raw material feeding mechanism (6) is connected to the bottom of the outer peripheral wall of the gasification furnace body (3); The gasification igniter (5) is installed on the gasification furnace body (3) and is used to ignite the gasification raw material to generate flue gas; The gasification gas adding pipe (4) is installed on the gasification furnace body (3) and is used to add a gasifying agent so that the gasification raw material in the gasification furnace body (3) maintains an incomplete combustion state; The melting assembly comprises a melting igniter (1), a melting raw material feeding mechanism (10) and a melting gas adding pipe (2); The discharge end of the molten raw material feeding mechanism (10) is connected to the top of the gasification furnace body (3) facing the inlet of the molten furnace; The melting igniter (1) is installed on the gasification furnace body (3) and extends into the melting furnace body (8), and is used to ignite the flue gas and the molten raw material; The melting gas adding pipe (2) is installed on the gasification furnace body (3) and extends into the melting furnace body (8), and is used to add a gasifying agent so that the flue gas maintains a repeated combustion state.

2. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: The gasification assembly also includes a crushing device; The crushing device is installed in the gasification furnace body (3), and divides the gasification furnace body (3) into a gasification lower chamber and a gasification upper chamber; The gasification igniter (5) and the gasification gas adding pipe (4) extend into the gasification lower chamber; The crushing device is used to crush the ash in the flue gas transported from the gasification lower chamber to the gasification upper chamber.

3. The fluidized bed process gasification and melting integrated furnace according to claim 2, characterized in that: The crushing device comprises a plurality of cutting and crushing knives (13); The plurality of cutting and crushing knives (13) are arranged circumferentially and are divided into multiple layers from bottom to top; The cutting and crushing knives (13) of adjacent layers are arranged in a staggered manner.

4. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: The melting assembly further comprises a fixed wind hood (11); The fixed wind cover (11) is installed on the top wall of the gasification furnace body (3) at a position facing the inlet of the melting furnace; The wind-fixing cover (11) is in the shape of an inverted frustum; The discharge end of the molten raw material conveying mechanism is connected to the top of the gasification furnace body (3) at a position corresponding to the fixed wind hood (11).

5. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: The melting assembly further comprises a cyclone guide plate (12); The cyclone guide blade (12) is installed in the melting furnace body (8) and is used to guide the airflow to spiral downward along the inner wall of the melting furnace body (8).

6. The fluidized bed process gasification and melting integrated furnace according to claim 5, characterized in that: The melting assembly further comprises a slag tank (7); The slag trough (7) is arranged on the inner wall of the melting furnace body (8) and is located below the cyclone guide blade (12).

7. The fluidized bed process gasification and melting integrated furnace according to claim 6, characterized in that: The slag tank (7) is composed of a plurality of tank bodies assembled together; Each of the trough bodies can be installed on the melting furnace body (8) in a pullable manner.

8. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: It also includes a chilling conveying device (9); The bottom of the melting furnace body (8) is provided with a melting outlet; The quenching conveying device (9) is connected to the melting outlet.

9. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: The air outlet direction of the air outlet end of the hot blast furnace assembly (14) is tangent to the outer peripheral wall of the gasification furnace body (3).

10. The fluidized bed process gasification and melting integrated furnace according to claim 1, characterized in that: The gasification furnace body (3) and the melting furnace body (8) are both provided with furnace walls composed of multiple layers of fireproof material.

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