CN220078979U - Inclined rotary cone reactor and circulating fluidized bed coupling gasification device - Google Patents

Abstract

The utility model discloses an inclined rotating cone reactor and circulating fluidized bed coupling gasification device, which comprises a rotating cone body, a fluidized bed body, a separator and a heat exchanger, wherein the rotating cone body is provided with a cavity, an air inlet, an air outlet, a first feed inlet and a discharge outlet, initial fuel is arranged in the cavity and crushed, the air inlet is suitable for introducing gasifying agents into the cavity, the initial fuel is combusted in the cavity to form coke particles and coal gas, the discharge outlet is suitable for discharging the coke particles in the cavity, the air outlet is suitable for discharging the coal gas in the cavity, the fluidized bed body is communicated with the discharge outlet, the coke particles enter the fluidized bed body to react and generate the coal gas, the separator is communicated with the fluidized bed body, and the heat exchanger is communicated with the cavity and the separator.

Description

Inclined rotary cone reactor and circulating fluidized bed coupling gasification device

Technical Field

The utility model relates to the technical field of fuel gasification, in particular to a coupling gasification device of an inclined rotating cone reactor and a circulating fluidized bed.

Background

Fuel gasification is a process of thermally processing a solid or other raw material with a gasifying agent, and the product is a combustible gas (gas). The solid fuel is various coals and cokes; the gasifying agent is air, oxygen-enriched air, oxygen, water vapor and carbon dioxide.

Currently, the industrial gasification technologies are mainly classified into fixed bed, fluidized bed and fluidized bed gasification technologies according to the contact mode of fuel and gasifying agent. The fluidized bed gasifying technology has the advantages of uniform heat and mass transfer, high automation degree, easy amplification and the like, but has the problems of low carbon conversion rate and high carbon content in fly ash due to high airflow speed in the bed and low reaction temperature. In addition, the particle size of the fuel suitable for the reaction of the fluidized bed is about 1cm, and the fuel with the size larger than 1cm needs to be crushed and prepared first, so that the investment of equipment and a system is increased.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present utility model provide an inclined rotating cone reactor coupled gasification apparatus with a circulating fluidized bed.

The inclined rotating cone reactor and circulating fluidized bed coupled gasification device of the embodiment of the utility model comprises:

the rotary cone body is provided with a cavity, an air inlet, an air outlet and a discharge hole, the air inlet, the air outlet and the discharge hole are communicated with the cavity, initial fuel is arranged in the cavity and crushed, the air inlet is suitable for introducing gasifying agent into the cavity so that the initial fuel is combusted in the cavity to form coke particles and coal gas, the discharge hole is suitable for discharging the coke particles in the cavity, and the air outlet is suitable for discharging the coal gas in the cavity;

the fluidized bed body is communicated with the discharge port, and coke particles in the cavity can enter the fluidized bed body through the discharge port to react and generate coal gas;

the separator is communicated with the fluidized bed body and is used for separating coarse ash carried in the coal gas and returning the coarse ash to the fluidized bed body for continuous reaction;

the heat exchanger is communicated with the cavity and the separator, a refrigerant is arranged in the heat exchanger, and the refrigerant exchanges heat with the gas in the cavity and the gas in the separator.

According to the inclined rotating cone reactor and circulating fluidized bed coupling gasification device, initial fuel is crushed in the rotating cone body cavity and subjected to gasification reaction to generate coke particles and coal gas with particle sizes smaller than those of the initial fuel, the coke particles enter the fluidized bed body to react and generate the coal gas, the coal gas in the fluidized bed body enters the separator to separate coarse ash carried in the coal gas, and then the coal gas in the rotating cone body cavity and the coal gas in the separator are mixed and enter the heat exchanger to reduce the temperature of the coal gas.

In some embodiments, the rotating cone body includes a rotating cone and a force cone, the rotating cone in communication with the force cone, the rotating cone rotatable relative to the force cone,

the rotary cone body is also provided with a first feed inlet, the first feed inlet and the air outlet are communicated with the stress application cone, the first feed inlet is used for introducing initial fuel into the stress application cone, the discharge outlet is communicated with the rotary cone,

the air inlet comprises a first air inlet and a second air inlet, the first air inlet is communicated with the rotating cone, and the second air inlet is communicated with the stress application cone.

In some embodiments, the central axis of the rotating cone is at an angle alpha, 35 deg. or less and 45 deg. or less from horizontal,

the included angle between the central axis of the stress application cone and the horizontal is beta, beta is more than or equal to 35 degrees and less than or equal to 45 degrees, and the angle difference between alpha and beta is less than 10 degrees.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a crushing member disposed within the rotating cone to crush a portion of the initial fuel within the rotating cone into char particles having a particle size of 1cm or less.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification device further comprises a discharging device, the discharging device is arranged around the outer wall surface of the rotating cone for a circle, a gap is arranged between the rotating cone and the stress application cone, the discharging device is communicated with the gap, so that part of initial fuel in the rotating cone can fall into the discharging device through the gap, the discharging hole is communicated with the discharging device, and the fuel in the discharging device is discharged into the fluidized bed body through the discharging hole.

In some embodiments, the discharge device includes a discharge member disposed within the discharge device and rotatable relative to the discharge device, the discharge member being operable to deliver fuel within the discharge device to the discharge port.

In some embodiments, the fluidized bed body has a reaction chamber, a second feed inlet and a slag discharge port, the reaction chamber is communicated with the discharge port, coke particles in the chamber react in the reaction chamber, the second feed inlet and the slag discharge port are communicated with the reaction chamber, the second feed inlet is positioned at the bottom of the reaction chamber, the second feed inlet is used for introducing coke particles into the reaction chamber, and the slag discharge port is suitable for discharging slag generated after the coke particles react in the reaction chamber.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a slag pool in communication with the slag tap, the slag pool for collecting slag within the reaction chamber.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a dust remover in communication with the heat exchanger for removing fine ash from the gas exiting the heat exchanger and returning the removed fine ash to the chamber for mixing with the initial fuel.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a purification assembly in communication with the dust collector for purifying the gas exiting the dust collector.

Drawings

FIG. 1 is a schematic diagram of an inclined rotating cone reactor coupled to a circulating fluidized bed gasification apparatus according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the rotating cone of the inclined rotating cone reactor of the coupled gasification apparatus of the circulating fluidized bed and the inclined rotating cone reactor according to the embodiment of the present utility model.

FIG. 3 is a schematic illustration of a stress cone of a sloped rotating cone reactor coupled to a circulating fluidized bed gasification apparatus in accordance with an embodiment of the present utility model.

FIG. 4 is a schematic diagram of a coupled inclined rotating cone reactor and circulating fluidized bed gasification apparatus in accordance with an embodiment of the present utility model.

Reference numerals: 1. a rotating cone body; 11. a chamber; 12. an air inlet; 121. a first air inlet; 122. a second air inlet; 13. an air outlet; 14. a discharge port; 15. a rotating cone; 151. a support ring; 152. a support arm; 153. a cone top; 154. hanging a grate bar; 155. a first gap; 16. a stress application cone; 161. a second chamber; 162. an outer wall; 163. an inner wall; 17. a first feed port; 18. a slit; 2. a fluidized bed body; 21. a reaction chamber; 22. a second feed inlet; 23. a slag discharge port; 24. a third air inlet; 3. a separator; 4. a heat exchanger; 5. a discharging device; 51. a discharging piece; 511. a rod piece; 512. a rotating piece; 513. a driving member; 52. a collection chamber; 6. a slag pool; 7. a dust remover; 8. a purification assembly; 81. a waste heat recoverer; 82. a desulfurizer; 83. a gas station; 9. a raw material bin; 10. and (5) a bin pump.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 4, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus of the embodiment of the present utility model includes a rotating cone body 1, a fluidized bed body 2, a separator 3, and a heat exchanger 4.

The rotary cone body 1 is provided with a cavity 11, an air inlet 12, an air outlet 13 and a discharge hole 14. The air inlet 12, the air outlet 13 and the discharge outlet 14 are communicated with the chamber 11, the chamber 11 is internally provided with initial fuel and breaks the initial fuel, the air inlet 12 is suitable for introducing gasifying agent into the chamber 11 so as to enable the initial fuel to be burnt into coke particles and coal gas in the chamber 11, the discharge outlet 14 is suitable for discharging the coke particles in the chamber 11, and the air outlet 13 is suitable for discharging the coal gas in the chamber 11.

The fluidized bed body 2 is communicated with the discharge hole 14, and coke particles in the chamber 11 can enter the fluidized bed body 2 through the discharge hole 14 to react and generate coal gas. The separator 3 is communicated with the fluidized bed body 2, and the separator 3 is used for separating coarse ash carried in the coal gas and returning the coarse ash to the fluidized bed body 2 for continuous reaction.

The heat exchanger 4 is communicated with the chamber 11 and the separator 3, and a refrigerant (not shown) is arranged in the heat exchanger 4, and the refrigerant exchanges heat with the gas in the chamber 11 and the gas in the separator 3.

According to the inclined rotating cone reactor and circulating fluidized bed coupling gasification device provided by the embodiment of the utility model, initial fuel is crushed in the chamber 11 and burnt into coke particles and coal gas with particle diameters smaller than those of the initial fuel, the coke particles enter the fluidized bed body 2 to react and generate the coal gas, the coal gas in the fluidized bed body 2 enters the separator 3 to separate coarse ash carried in the coal gas, and then the coal gas in the chamber 11 and the coal gas in the separator 3 are mixed and enter the heat exchanger 4 to reduce the temperature of the coal gas.

In some embodiments, the separator 3 is a cyclone separator. Cyclone separators are a type of apparatus used for the separation of gas-solid systems or liquid-solid systems. The cyclone separator works on the principle that solid particles or liquid drops with large inertial centrifugal force are thrown to the outer wall surface for separation by the rotary motion caused by tangential introduction of air flow. The cyclone separator has the advantages of simple structure, high operation elasticity, higher efficiency, convenient management and maintenance and low price.

In some embodiments, the heat exchanger 4 has a first channel (not shown) and a second channel (not shown). The first channel communicates with the chamber 11 and the separator 3 so that gas in the chamber 11 and the separator 3 can enter the first channel. The refrigerant is arranged in the second channel, and the gas in the first channel and the refrigerant in the second channel exchange heat so as to reduce the temperature of the gas.

Specifically, the initial fuel applicable to the rotating cone body 1 has a size range of 20cm or less.

In some embodiments, the refrigerant (cooling medium) includes, but is not limited to, water and air, and the refrigerant absorbs the heat of the gas through the heat exchanger 4 to raise the temperature. The high temperature coolant can be introduced into the chamber 11 to heat the initial fuel and also can heat the gasifying agent.

In some embodiments, the rotating cone body 1 comprises a rotating cone 15 and a stress cone 16, the rotating cone 15 being in communication with the stress cone 16, the rotating cone 15 being rotatable relative to the stress cone 16.

The rotary cone body 1 is also provided with a first feed inlet 17, the first feed inlet 17 and the air outlet 13 are communicated with the stress application cone 16, the first feed inlet 17 is used for introducing initial fuel into the stress application cone 16, and the discharge outlet 14 is communicated with the rotary cone 15.

The air inlet 12 includes a first air inlet 121 and a second air inlet 122, the first air inlet 121 being in communication with the rotating cone 15 and the second air inlet 122 being in communication with the boost cone 16.

Specifically, the first air inlet 121 is provided at the bottom of the rotary cone 15, and the first stream of gasifying agent is introduced into the rotary cone 15 through the first air inlet 121. The second air inlet 122 is arranged at the top of the stress application cone 16, and a second strand of gasifying agent is introduced into the stress application cone 16 through the second air inlet 122, and the gasifying agent in the stress application cone 16 enters the stress application cone 16 from the top end of the stress application cone 16 and descends into the rotating cone 15. The fuel in the rotary cone 15 is contacted with the gasifying agent under the combined action of the rotation cone 15, the flowing of the first gasifying agent and the rotational flow stirring of the second gasifying agent, so that the temperature is quickly raised, the continuous rolling and the multi-surface reaction are carried out, and the carbon conversion rate of the initial fuel is improved.

In some embodiments, the rotating cone 15 includes a support ring 151, a support arm 152, a grate (not shown), a cone tip 153, and a grate bar 154. The support rings 151 are plural, the plural support rings 151 are arranged at intervals in the up-down direction, and the central axes of the plural support rings 151 are collinear, and the cross-sectional area of the support rings 151 is gradually reduced in the downward direction. The support arms 152 are disposed on the support ring 151, and the support arms 152 are plural, and the plurality of support arms 152 are disposed around the outer wall surface of the support ring 151 at intervals.

In particular, the support ring 151 includes at least two sub-support segments to prevent thermal expansion during operation.

A first chamber 11 (not shown) is formed between the support ring 151 and the support arm 152, and the initial fuel is provided in the first chamber 11. There is a first gap 155 between the support ring 151 and the support arm 152.

The plurality of hanging grate bars 154 are provided, the plurality of hanging grate bars 154 are divided into a plurality of groups, the plurality of groups of hanging grate bars 154 are arranged at intervals along the up-down direction, the plurality of groups of hanging grate bars 154 and the plurality of supporting rings 151 are alternately arranged, and each group of hanging grate bars 154 at least comprises one hanging grate bar 154. The number of the grate is plural and the grate is detachably installed on the grate bars 154 to prevent high temperature thermal expansion during operation.

Specifically, the grate has a second gap (not shown) thereon, and the second gap has a diameter of not more than 1cm, so that ash generated after the pyrolysis reaction of the initial fuel in the first chamber 11 can escape from the second gap and the first gap 155.

A cone tip 153 is provided on the uppermost support ring 151, the cone tip 153 communicating with the stress application cone 16.

In some embodiments, the boost cone 16 has a second chamber 161, an outer wall 162, an inner wall 163, and a first feed port 17. The outer wall 162 is disposed around the inner wall 163 with a gap between the outer wall 162 and the inner wall 163. The second chamber 161 is formed in the inner wall 163, and the cross-sectional area of the inner wall 163 is gradually increased in a diagonally downward direction. The first feed port 17 communicates with the second chamber 161, and the initial fuel is introduced into the second chamber 161 through the first feed port 17. A second air inlet 122 is provided at the top of the boost cone 16, and a second stream of gasifying agent introduced into the boost cone 16 through the second air inlet 122 is spirally lowered into the rotary cone 15 from the top end of the boost cone 16. The second chamber 161 and the first chamber 11 form the chamber 11.

Pyrolysis gas or gasification gas generated by the reaction of the initial fuel in the rotating cone 15 is sucked into the second chamber 161 of the booster cone 16 under the negative pressure generated by the strong swirling flow of the second gasifying agent. The unburned carbon and fly ash contained in the gas are centrifuged by the swirling flow, collide with the inner wall 163 surface of the second chamber 161, fall down, and are separated from the gas.

In some embodiments, the central axis of the rotating cone 15 is at an angle alpha, 35 alpha 45,

the included angle between the central axis of the stress application cone 16 and the horizontal is beta, beta is more than or equal to 35 degrees and less than or equal to 45 degrees, and the angle difference between alpha and beta is less than 10 degrees.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further includes a crushing member provided in the rotating cone 15 to crush a portion of the initial fuel in the rotating cone 15 into char particles having a particle size of 1cm or less.

Specifically, the crushing piece is a high-temperature-resistant heavy ball. The crushing member is arranged in the rotary cone 15, so that the initial fuel which is large in size, slow in reaction and difficult to crush in the rotary cone 15 can be crushed, the contact between the gasifying agent and the initial fuel is improved, and the carbon conversion rate of the initial fuel is improved.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification device further comprises a discharging device 5, the discharging device 5 is arranged around the outer wall surface of the rotating cone 15 for one circle, a gap 18 is arranged between the rotating cone 15 and the stress application cone 16, the discharging device 5 is communicated with the gap 18, so that part of initial fuel in the rotating cone 15 can fall into the discharging device 5 through the gap 18, the discharging hole 14 is communicated with the discharging device 5, and fuel in the discharging device 5 is discharged into the fluidized bed body 2 through the discharging hole 14.

Specifically, a gap 18 is provided between the rotating cone 15 and the stress cone 16, so that part of the fuel in the rotating cone 15, which falls through the first gap 155 and the second gap, and unburned carbon and fly ash, which are sucked into the stress cone 16 and separated from the gas, can fall into the discharge device 5 through the gap 18.

In some embodiments, the discharge device 5 includes a discharge member 51, where the discharge member 51 is disposed within the discharge device 5 and rotatable relative to the discharge device 5, and where the discharge member 51 can deliver fuel within the discharge device 5 to the discharge port 14.

Specifically, the discharge device 5 has a collection chamber 52, the collection chamber 52 being in communication with the slit 18. The discharge member 51 is disposed within the collection chamber 52. The outfeed member 51 comprises a lever 511, a rotator 512 and a driver 513. The rotating member 512 is disposed on the rod 511 and spirally rises along the length direction of the rod 511, the rotating member 512 can carry fuel, and the driving member 513 is connected to the rod 511 to drive the rod 511 to rotate.

In use, the driving member 513 is turned on, and the driving member 513 drives the rod 511 to rotate, so that the rotating member 512 carries the fuel in the collection chamber 52 to the discharge port 14, thereby facilitating the fuel in the collection chamber 52 to be discharged out of the collection chamber 52.

In some embodiments, the fluidized bed body 2 has a reaction chamber 21, a second feed port 22, a third air inlet 24 (air inlet for gasifying agent) and a slag discharge port 23. The reaction chamber 21 is communicated with the discharge port 14, coke particles in the chamber 11 react in the reaction chamber 21, the second feeding port 22, the third air inlet 24 and the slag discharging port 23 are communicated with the reaction chamber 21, the second feeding port 22 is positioned at the bottom of the reaction chamber 21, the second feeding port 22 is used for introducing coke particles into the reaction chamber 21, the third air inlet 24 is used for introducing gasifying agent into the reaction chamber 21, and the slag discharging port 23 is suitable for discharging slag generated after the coke particles react in the reaction chamber 21.

Specifically, reaction chamber 21 communicates with discharge port 14 such that fuel within collection chamber 52 may enter reaction chamber 21 through discharge port 14. The second feed port 22 communicates with the reaction chamber 21 so that the gasifying agent introduced into the reaction chamber 21 through the second feed port 22 can blow the fuel and react with the fuel to generate gas. The second feed inlet 22 is positioned at the bottom of the reaction chamber 21 so as to make the gasifying agent fully contacted with the fuel and improve the production efficiency of the coal gas.

Slag generated after the reaction of the fuel in the reaction chamber 21 is discharged through the slag discharge port 23, and the reaction chamber 21 is cleaned in time, so that the contact between the gasifying agent and the fuel is more sufficient.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a slag bath 6, the slag bath 6 being in communication with the slag discharge 23, the slag bath 6 being configured to collect slag within the reaction chamber 21.

Specifically, the slag bath 6 communicates with the slag discharge port 23 so that slag in the reaction chamber 21 is discharged into the slag bath 6 through the slag discharge port 23, so that the slag bath 6 uniformly collects the slag.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a dust collector 7 and a cleaning assembly 8. The dust remover 7 is communicated with the heat exchanger 4 and the purification assembly 8, and the dust remover 7 is used for removing fine ash in the coal gas discharged from the heat exchanger 4 and returning the removed fine ash into the chamber 11 to be mixed with the initial fuel. The cleaning assembly 8 is used for cleaning the gas discharged from the dust collector 7.

Specifically, the high-temperature fine ash removed by the dust remover 7 is mixed with the initial fuel to raise the temperature of the initial fuel, reduce the residual carbon in the fly ash and improve the carbon conversion rate.

In some embodiments, the inclined rotating cone reactor and circulating fluidized bed coupled gasification apparatus further comprises a raw silo 9 and a silo pump 10. The raw stock bin 9 communicates with the second chamber 161 to provide the initial fuel into the second chamber 161. The bin pump 10 is communicated with the dust remover 7 and the raw material bin 9, so that high-temperature fine ash removed by the dust remover 7 can be mixed with initial fuel in the raw material bin 9, the temperature of the initial fuel in the raw material bin 9 is increased, the residual carbon of fly ash is reduced, and the carbon conversion rate is increased.

In some embodiments, the purifying component 8 includes a waste heat recoverer 81, a desulfurizer 82 and a gas station 83, and the dust remover 7, the waste heat recoverer 81, the desulfurizer 82 and the gas station 83 are sequentially communicated, so that the gas passing through the dust remover 7 is cooled by the waste heat recoverer 81 and desulfurized by the desulfurizer 82 and finally enters the gas station 83.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. An inclined rotating cone reactor and circulating fluidized bed coupled gasification device, comprising:

the rotary cone comprises a rotary cone body (1), wherein the rotary cone body (1) is provided with a cavity (11), an air inlet (12), an air outlet (13), a first feed inlet and a discharge outlet (14), the air inlet (12), the air outlet (13) and the discharge outlet (14) are communicated with the cavity (11), initial fuel is arranged in the cavity (11) and crushed, the air inlet (12) is suitable for introducing gasifying agent into the cavity (11) so that the initial fuel is combusted into coke particles and coal gas in the cavity (11), the discharge outlet (14) is suitable for discharging the coke particles in the cavity (11), and the air outlet (13) is suitable for discharging the coal gas in the cavity (11);

the fluidized bed body (2), the fluidized bed body (2) is communicated with the discharge hole (14), and coke particles in the cavity (11) can enter the fluidized bed body (2) through the discharge hole (14) to react and generate coal gas;

the separator (3) is communicated with the fluidized bed body (2), and the separator (3) is used for separating coarse ash carried in the coal gas and returning the coarse ash to the fluidized bed body (2) for continuous reaction;

the heat exchanger (4), heat exchanger (4) with cavity (11) with separator (3) intercommunication, have the refrigerant in heat exchanger (4), the refrigerant with coal gas in cavity (11) and the coal gas in separator (3) carries out the heat exchange.

2. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 1, wherein the rotating cone body (1) comprises a rotating cone (15) and a stress application cone (16), the rotating cone (15) is communicated with the stress application cone (16), the rotating cone (15) is rotatable relative to the stress application cone (16),

the rotary cone body (1) is also provided with a first feed inlet (17), the first feed inlet (17) and the air outlet (13) are communicated with the stress application cone (16), the first feed inlet (17) is used for introducing initial fuel into the stress application cone (16), the discharge outlet (14) is communicated with the rotary cone (15),

the air inlet (12) comprises a first air inlet (121) and a second air inlet (122), the first air inlet (121) is communicated with the rotary cone (15), and the second air inlet (122) is communicated with the stress application cone (16).

3. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 2, wherein the included angle between the central axis of the rotating cone (15) and the horizontal is alpha, and alpha is more than or equal to 35 degrees and less than or equal to 45 degrees,

the included angle between the central axis of the stress application cone (16) and the horizontal is beta, beta is more than or equal to 35 degrees and less than or equal to 45 degrees, and the angle difference between alpha and beta is less than 10 degrees.

4. The coupled gasification apparatus of an inclined rotating cone reactor and a circulating fluidized bed according to claim 2, further comprising a crushing member provided in the rotating cone (15) to crush a part of the initial fuel in the rotating cone (15) into char particles having a particle diameter of 1cm or less.

5. The inclined rotating cone reactor and circulating fluidized bed coupled gasification device according to claim 2, further comprising a discharging device (5), wherein the discharging device (5) is arranged around the outer wall surface of the rotating cone (15) in a circle, a gap (18) is arranged between the rotating cone (15) and the stress application cone (16), the discharging device (5) is communicated with the gap (18), so that part of initial fuel in the rotating cone (15) can fall into the discharging device (5) through the gap (18), the discharging hole (14) is communicated with the discharging device (5), and the fuel in the discharging device (5) is discharged into the fluidized bed body (2) through the discharging hole (14).

6. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 5, wherein the discharging device (5) comprises a discharging member (51), the discharging member (51) is disposed in the discharging device (5) and rotatable relative to the discharging device (5), and the discharging member (51) can convey fuel in the discharging device (5) to the discharging port (14).

7. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 1, wherein the fluidized bed body (2) is provided with a reaction chamber (21), a second feed port (22) and a slag discharge port (23), the reaction chamber (21) is communicated with the discharge port (14), coke particles in the chamber (11) react in the reaction chamber (21), the second feed port (22) and the slag discharge port (23) are communicated with the reaction chamber (21), the second feed port (22) is positioned at the bottom of the reaction chamber (21), the second feed port (22) is used for introducing coke particles into the reaction chamber (21), and the slag discharge port (23) is suitable for discharging slag generated after the coke particles react in the reaction chamber (21).

8. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 7, further comprising a slag pool (6), wherein the slag pool (6) is communicated with the slag discharge port (23), and the slag pool (6) is used for collecting slag in the reaction chamber (21).

9. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 1, further comprising a dust remover (7), wherein the dust remover (7) is communicated with the heat exchanger (4), and the dust remover (7) is used for removing fine ash in gas discharged from the heat exchanger (4) and returning the removed fine ash into the chamber (11) to be mixed with initial fuel.

10. The coupled gasification device of an inclined rotating cone reactor and a circulating fluidized bed according to claim 9, further comprising a purification assembly (8), the purification assembly (8) being in communication with the dust separator (7), the purification assembly (8) being for purifying gas discharged from the dust separator (7).