CN220078978U - Inclined rotary cone and entrained flow bed and circulating fluidized bed coupling gasification device - Google Patents

Abstract

The utility model discloses an inclined rotating cone, entrained flow and circulating fluidized bed coupling gasification device which comprises an inclined rotating cone body, a fluidized bed body, a dust removing piece and an entrained flow body, wherein the inclined rotating cone body is provided with a first chamber, an air outlet, an air inlet, a feed inlet and a discharge outlet, initial fuel and gasifying agent are arranged in the first chamber, the initial fuel is combusted to form coke particles and coal gas in the first chamber, the coke particles are discharged from the discharge outlet, the coal gas is discharged from the air outlet, the particle size of the coke particles is smaller than that of the initial fuel, the fluidized bed body is provided with a second chamber, the coke particles react in the second chamber to generate coal gas, the entrained flow body is provided with a third chamber, and the dust removing piece is used for removing the coal gas in the first chamber and fine ash carried by the coal gas in the second chamber and delivering the coal ash into the third chamber. The inclined rotating cone, entrained flow bed and circulating fluidized bed coupling gasification device of the embodiment of the utility model can improve the carbon conversion rate of fuel and reduce the pretreatment and preparation cost of fuel.

Description

Inclined rotary cone and entrained flow bed 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, an entrained flow bed 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.

However, the fluidized bed gasification technology and the entrained flow gasification technology have high requirements on the particle size of the fuel, and a pulverized coal preparation system needs to be added, so that the investment of equipment and systems 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. Therefore, the embodiment of the utility model provides the inclined rotating cone, entrained flow and circulating fluidized bed coupled gasification device, which can expand the types of fuel for industrial gasification, improve the carbon conversion rate of the fuel and reduce the pretreatment and preparation cost of the fuel.

The inclined rotating cone, entrained flow bed and circulating fluidized bed coupling gasification device provided by the embodiment of the utility model comprises:

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

the fluidized bed body is provided with a second chamber, a gasifying agent is arranged in the second chamber, the second chamber is communicated with the discharge hole, and coke particles in the first chamber enter the second chamber through the discharge hole and react in the second chamber to generate coal gas;

the dust removing piece is provided with a first inlet and a first outlet, the first chamber and the second chamber are communicated with the first inlet, the dust removing piece is used for purifying the gas in the first chamber and the gas in the second chamber so as to remove fine ash carried by the gas, and the first outlet is used for discharging the fine ash, and the grain size of the fine ash is smaller than that of the coke particles;

the entrained flow bed body is provided with a third chamber, a second inlet and a second outlet, wherein the second inlet is communicated with the first outlet, so that fine ash in the dust removing piece can enter the third chamber, a gasifying agent is arranged in the third chamber, the fine ash in the third chamber reacts with the gasifying agent to generate coal gas and is discharged from the second outlet, and the second outlet is communicated with the third chamber and the first inlet of the dust removing piece.

According to the inclined rotating cone, the entrained flow bed and the circulating fluidized bed coupling gasification device, initial fuel is combusted in the first chamber to generate coke particles and coal gas, the particle size of the coke particles is smaller than that of the initial fuel, so that the coke particles can enter the second chamber to react to generate coal gas and fine ash, the particle size of the fine ash is smaller than that of the coke particles, and after the fine ash is separated from the coal gas by the dust removing piece, the fine ash enters the third chamber to continuously react to generate the coal gas.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a separator in communication with the second chamber, the gas in the second chamber being accessible to the separator for separating coarse ash carried by the gas and returning the coarse ash to the second chamber for further reaction.

In some embodiments, the inclined rotating cone, entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a bin pump, the bin pump being in communication with the first outlet and the second inlet, the bin pump being configured to pass fine ash within the dust removal member into the third chamber.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises:

the first heat exchanger is communicated with the separator, the first chamber and the third chamber, a refrigerant is arranged in the first heat exchanger, and gas discharged from the first chamber, the separator and the third chamber exchanges heat with the refrigerant;

the second heat exchanger is arranged in the third cavity and is communicated with the first heat exchanger, and part of heat exchanged refrigerant in the first heat exchanger enters the second heat exchanger.

In some embodiments, the second inlet is located at a top of the entrained flow body, the second inlet is adapted to pass in gasifying agent and fine ash within the dust removal element, and the second outlet is located below the second inlet.

In some embodiments, the fluidized bed body has an opening at a bottom of the fluidized bed body, the opening adapted to pass a gasifying agent.

In some embodiments, the inclined rotating cone, the entrained flow bed and the circulating fluidized bed coupled gasification device further comprise a waste heat recoverer, a desulfurizer and a gas station which are sequentially communicated, the dust removing piece is further provided with a third outlet, the third outlet is communicated with the waste heat recoverer, and the gas in the dust removing piece is suitable for being discharged from the third outlet after fine ash is removed and sequentially passes through the waste heat recoverer, the desulfurizer and the gas station.

In some embodiments, the inclined rotating cone body includes a rotating cone and a forcing cone, the rotating cone being in communication with the forcing cone, the rotating cone being rotatable relative to the forcing cone, the rotating cone and the forcing cone having a gap therebetween, the initial fuel being dischargeable through the gap,

the inclined rotating cone body is further provided with a feed inlet, the feed inlet is communicated with the stress application cone, the feed inlet is used for introducing initial fuel into the stress application cone, and the discharge outlet is communicated with the gap and the second chamber, so that the initial fuel discharged from the gap can enter the second chamber through the discharge outlet.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a raw silo in communication with the feed inlet, the raw silo being adapted to introduce an initial fuel into the first chamber through the feed inlet.

In some embodiments, the inclined rotating cone and entrained flow bed, circulating fluidized bed coupled gasification apparatus further comprises a slag pool in communication with the second chamber and the third chamber, the slag pool for collecting slag generated by the reaction of char particles in the second chamber and slag generated by the reaction of fine ash in the third chamber.

Drawings

FIG. 1 is a schematic diagram of a coupled gasification device of an inclined rotating cone and entrained flow bed, circulating fluidized bed in accordance with an embodiment of the present utility model.

FIG. 2 is a schematic view of a tilting cone body of a gasification device with coupled tilting cone and entrained flow, circulating fluidized bed, according to an embodiment of the utility model.

FIG. 3 is a schematic view of a sloped rotating cone coupled with entrained flow, circulating fluidized bed gasification apparatus stress cone in accordance with an embodiment of the present utility model.

FIG. 4 is a schematic view of a rotating cone of a coupled gasification device of an inclined rotating cone and entrained flow bed, circulating fluidized bed, according to an embodiment of the utility model.

Reference numerals: 1. tilting the rotating cone body; 11. a first 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 subchamber; 162. an outer wall; 163. an inner wall; 164. a void; 17. a slit; 18. a feed inlet; 2. a fluidized bed body; 21. a second chamber; 22. an opening; 23. an inlet; 3. a dust removing member; 31. a first inlet; 32. a first outlet; 33. a third outlet; 4. an entrained flow bed body; 41. a third chamber; 42. a second inlet; 43. a second outlet; 5. a separator; 6. a bin pump; 71. a first heat exchanger; 72. a second heat exchanger; 73. a waste heat recoverer; 74. a desulfurizer; 75. a gas station; 76. a raw material bin; 77. a slag pool; 8. a slag discharging device; 81. slag tapping pieces; 811. a rod piece; 812. a rotating piece; 813. a driving member; 82. a collection chamber.

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-entrained-flow bed and circulating fluidized bed coupled gasification device in the embodiment of the utility model comprises an inclined rotating cone body 1, a fluidized bed body 2, a dust removing piece 3 and an entrained-flow bed body 4.

The inclined rotary cone body 1 is provided with a first chamber 11, an air inlet 12, an air outlet 13 and a discharge hole 14, wherein the air inlet 12, the air outlet 13 and the discharge hole 14 are communicated with the first chamber 11, the first chamber 11 is internally provided with initial fuel, the air inlet 12 is suitable for introducing gasifying agent into the first chamber 11 so as to enable the initial fuel to be burnt into coke particles and coal gas in the first chamber 11, the discharge hole 14 is suitable for discharging the coke particles in the first chamber 11, the particle size of the coke particles is smaller than that of the initial fuel, and the air outlet 13 is suitable for discharging the coal gas in the first chamber 11. Specifically, the size range of the initial fuel to which the inclined rotating cone body 1 is applicable is 20cm or less. The particle size of the coke particles is less than or equal to 1cm.

The fluidized bed body 2 is provided with a second chamber 21, the second chamber 21 is internally provided with a gasifying agent, the second chamber 21 is communicated with the discharge hole 14, and coke particles in the first chamber 11 enter the second chamber 21 through the discharge hole 14 and react in the second chamber 21 to generate coal gas.

The dust removing member 3 has a first inlet 31 and a first outlet 32, the first chamber 11 and the second chamber 21 are communicated with the first inlet 31, the dust removing member 3 is used for purifying the gas in the first chamber 11 and the gas in the second chamber 21 so as to remove fine ash carried by the gas, and the first outlet 32 is used for discharging the fine ash, and the grain size of the fine ash is smaller than that of the coke particles. Specifically, the fine ash has a particle diameter of less than 0.1mm.

The entrained flow body 4 has a third chamber 41, a second inlet 42 and a second outlet 43, the second inlet 42 is communicated with the first outlet 32, so that fine ash in the dust removing member 3 can enter the third chamber 41, the third chamber 41 is provided with gasifying agent, the fine ash in the third chamber 41 reacts with the gasifying agent to generate coal gas and is discharged from the second outlet 43, and the second outlet 43 is communicated with the third chamber 41 and the first inlet 31 of the dust removing member 3.

According to the inclined rotating cone, the entrained flow bed and the circulating fluidized bed coupling gasification device, initial fuel is combusted in the first chamber 11 to generate coke particles and coal gas, the particle size of the coke particles is smaller than that of the initial fuel, so that the coke particles can enter the second chamber 21 to react to generate coal gas and fine ash, the particle size of the fine ash is smaller than that of the coke particles, and after the fine ash is separated from the coal gas by the dust removing piece 3, the fine ash enters the third chamber 41 to continuously react to generate the coal gas.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a separator 5, the separator 5 is in communication with the second chamber 21, the gas in the second chamber 21 can enter the separator 5, and the separator 5 is used for separating coarse ash carried by the gas and returning the coarse ash to the second chamber 21 for further reaction.

Specifically, the separator 5 separates the coarse ash carried in the gas discharged from the second chamber 21 and returns the coarse ash to the second chamber 21 for continuous reaction, so that the carbon conversion rate of the coarse ash can be effectively improved, resources are saved, and the productivity of the second chamber 21 to the gas is improved.

In some embodiments, the separator 5 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 inclined rotating cone and entrained flow bed and circulating fluidized bed coupled gasification device further comprises a bin pump 6, wherein the bin pump 6 is communicated with the first outlet 32 and the second inlet 42, and the bin pump 6 is used for leading fine ash in the dust removing piece 3 into the third chamber 41.

Specifically, the bin pump 6 introduces the fine ash in the dust removing piece 3 into the third chamber 41, so that the transfer speed of the fine ash and the reaction speed of the fine ash in the entrained flow bed body 4 can be effectively improved, and the carbon conversion rate and the gas generation rate of the inclined rotary cone-entrained flow bed and circulating fluidized bed coupled gasification device in the embodiment of the utility model are improved.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a first heat exchanger 71 and a second heat exchanger 72. The first heat exchanger 71 communicates with the separator 5, the first chamber 11, and the third chamber 41, and the first heat exchanger 71 has a refrigerant therein, and gas discharged from the first chamber 11, the separator 5, and the third chamber 41 exchanges heat with the refrigerant.

Specifically, the first heat exchanger 71 has a first passage (not shown) in which the refrigerant in the first heat exchanger 71 is provided, and a second passage (not shown) that communicates with the separator 5, the first chamber 11, and the third chamber 41. The gas in the separator 5, the first chamber 11 and the third chamber 41 is discharged into the second passage and exchanges heat with the refrigerant in the first passage to reduce the temperature of the gas in the second passage.

In some embodiments, the refrigerant (cooling medium) includes, but is not limited to, water, air.

The second heat exchanger 72 is disposed in the third chamber 41 and communicates with the first heat exchanger 71, and a part of the heat-exchanged refrigerant in the first heat exchanger 71 enters the second heat exchanger 72.

Specifically, the second heat exchanger 72 communicates with the first passage so that the refrigerant heated after heat exchange in the first passage can enter the second heat exchanger 72. The second heat exchanger 72 is disposed in the third chamber 41 such that the refrigerant in the second heat exchanger 72 heats the gasifying agent in the third chamber 41.

In some embodiments, a second inlet 42 is located at the top of the entrained flow body 4, the second inlet 42 being adapted to pass fine ash within the gasifying agent and dust removal member 3, and a second outlet 43 being located below the second inlet 42.

Specifically, two second inlets 42 are arranged at intervals at the top of the entrained flow body 4, and the gasification agent and the fine ash in the dust removal enter the third chamber 41 through the second inlets, so that the fine ash and the gasification agent can come into contact from the second inlets 42, the fine ash can be more fully contacted with the gasification agent in the third chamber 41, and the fine ash can be more fully reacted in the third chamber 41.

In some embodiments, the fluidized bed body 2 has an opening 22, the opening 22 being located at the bottom of the fluidized bed body 2, the opening 22 being adapted to be fed with gasifying agent.

Specifically, the fluidized bed body 2 further has an inlet 23, and the inlet 23 communicates with the discharge port 14 so that char particles in the first chamber 11 can enter the second chamber 21 through the inlet 23. The inlet 23 is positioned at the lower end of the fluidized bed body 2 and above the opening 22, so that the gasifying agent in the second chamber 21 can blow the coke particles in the second chamber 21 to move, so that the gasifying agent is in full contact with the coke particles, the carbon conversion rate of the coke particles is improved, and the gas production amount is improved.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a waste heat recoverer 73, a desulfurizer 74, and a gas station 75 in sequential communication.

The dust removing member 3 further has a third outlet 33, the third outlet 33 is communicated with the waste heat recoverer 73, and the gas in the dust removing member 3 is suitable for being discharged from the third outlet 33 after fine ash is removed and sequentially passes through the waste heat recoverer 73, the desulfurizer 74 and the gas station 75.

Specifically, the gas after fine ash removal in the dust removing piece 3 enters the waste heat recoverer 73 for cooling again, the cooled gas enters the separator for desulfurization, and finally the gas enters the gas station 75.

In some embodiments, the inclined rotating cone body 1 includes a rotating cone 15 and a forcing cone 16, the rotating cone 15 is communicated with the forcing cone 16, the rotating cone 15 is rotatable relative to the forcing cone 16, a gap 17 is provided between the rotating cone 15 and the forcing cone 16, and initial fuel can be discharged through the gap 17.

The inclined rotating cone body 1 is also provided with a feed inlet 18, the feed inlet 18 is communicated with the stress application cone 16, the feed inlet 18 is used for introducing initial fuel into the stress application cone 16, and the discharge outlet 14 is communicated with the gap 17 and the second chamber 21, so that the initial fuel discharged from the gap 17 can enter the second chamber 21 through the discharge outlet 14.

Specifically, the air intake 12 includes a first air intake 121 and a second air intake 122. The first air inlet 121 is provided at the bottom of the rotary cone 15 and communicates with the rotary cone 15, and a 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 is communicated with 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, enters the stress application cone 16 from the top end of the stress application cone 16 and descends into the rotating cone 15.

The initial fuel in the rotary cone 15 is contacted with the gasifying agent under the combined action of the driving of the rotary 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.

Specifically, the support ring 151 includes at least two sub-support segments (not shown) to prevent thermal expansion during operation.

A first subchamber (not shown) is formed between the support ring 151 and the support arm 152, with the initial fuel disposed within the first subchamber. A first gap 155 is provided between the support ring 151 and the support arm 152 so that coke particles generated by the combustion of the initial fuel in the first subchamber can fall out of the first gap 155 when the rotating cone 15 is rotated.

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 by the combustion of the initial fuel in the first subchamber can escape from the second gap.

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 force cone 16 has a second subchamber 161, an outer wall 162, and an inner wall 163. The outer wall 162 is disposed around the inner wall 163 with a gap 164 between the outer wall 162 and the inner wall 163. The second sub-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. A feed port 18 is formed in the force cone 16, the feed port 18 communicates with the second sub-chamber 161, and the initial fuel is introduced into the second sub-chamber 161 through the feed port 18. 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 sub-chamber 161 and the first sub-chamber form the first chamber 11.

Pyrolysis gas or gasification gas generated by the reaction of the initial fuel in the rotating cone 15 is drawn into the second subchamber 161 of the boost 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 sub-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 (not shown) 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 and entrained flow bed and circulating fluidized bed coupled gasification device of the embodiment of the utility model further comprises a slag tapping device 8. The slag discharging device 8 is arranged around the outer wall surface of the rotary cone 15 for a circle, the slag discharging device 8 is communicated with the gap 17, so that part of initial fuel in the rotary cone 15 can fall into the slag discharging device 8 through the gap 17, the discharge hole 14 is communicated with the slag discharging device 8, and the fuel in the slag discharging device 8 is discharged into the second chamber 21 through the discharge hole 14.

Specifically, the tap hole 14 is formed in the tapping device 8. Part of the fuel falling from the first gap 155 and the second gap and unburned carbon, fly ash, which is drawn into the boost cone 16 by the second stream of gasifying agent and separated from the gas, can fall through the gap 17 into the tapping device 8.

In some embodiments, the tapping device 8 comprises a tapping member 81, the tapping member 81 being provided within the tapping device 8 and being rotatable relative to the tapping device 8, the tapping member 81 being operable to deliver fuel within the tapping device 8 to the discharge opening 14.

Specifically, the tapping device 8 has a collecting chamber 82, the collecting chamber 82 being in communication with the slit 17. The tapping member 81 is provided in the collecting chamber 82. Tapping member 81 comprises a rod 811, a screw 812 and a drive member 813. A screw 812 is provided on the rod 811 and is spirally raised along the length of the rod 811, the screw 812 being adapted to carry fuel, and a driving member 813 is coupled to the rod 811 to drive the rod 811 in rotation. In use, the driver 813 is turned on, and the driver 813 drives the rod 811 to rotate, so that the screw 812 carries the fuel in the collection chamber 82 to the discharge port 14, thereby facilitating the fuel in the collection chamber 82 to be discharged out of the collection chamber 82.

In some embodiments, the inclined rotating cone and entrained flow, circulating fluidized bed coupled gasification apparatus further comprises a raw material bin 76, the raw material bin 76 being in communication with the feed inlet 18, the raw material bin 76 being adapted to feed an initial fuel into the first chamber 11 through the feed inlet 18 to ensure an amount of initial raw material within the first chamber 11.

In some embodiments, the coupled gasification device of the inclined rotating cone and the entrained-flow bed and the circulating fluidized bed further comprises a slag pool 77, wherein the slag pool 77 is communicated with the second chamber 21 and the third chamber 41, and the slag pool 77 is used for collecting slag generated by the reaction of coke particles in the second chamber 21 and slag generated by the reaction of fine ash in the third chamber 41 so as to release the volumes of the second chamber 21 and the third chamber 41 and uniformly collect the slag.

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, entrained flow bed and circulating fluidized bed coupled gasification device is characterized by comprising:

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

the fluidized bed comprises a fluidized bed body (2), wherein the fluidized bed body (2) is provided with a second chamber (21), a gasifying agent is arranged in the second chamber (21), the second chamber (21) is communicated with the discharge hole (14), and coke particles in the first chamber (11) enter the second chamber (21) through the discharge hole (14) and react in the second chamber (21) to generate coal gas;

the dust removing piece (3), the dust removing piece (3) is provided with a first inlet (31) and a first outlet (32), the first chamber (11) and the second chamber (21) are communicated with the first inlet (31), the dust removing piece (3) is used for purifying coal gas in the first chamber (11) and coal gas in the second chamber (21) so as to remove fine ash carried by the coal gas, and the first outlet (32) is used for discharging the fine ash, wherein the particle size of the fine ash is smaller than that of the coke particles;

entrained flow body (4), entrained flow body (4) have third cavity (41), second import (42) and second export (43), second import (42) with first export (32) intercommunication, so that fine ash can get into in dust remover (3) third cavity (41), have gasifying agent in third cavity (41), fine ash in third cavity (41) reacts with gasifying agent and produces coal gas and by second export (43) discharge, second export (43) with third cavity (41) with first import (31) of dust remover (3).

2. The coupled gasification device of the inclined rotating cone and the entrained flow bed and the circulating fluidized bed according to claim 1, further comprising a separator (5), wherein the separator (5) is communicated with the second chamber (21), gas in the second chamber (21) can enter the separator (5), and the separator (5) is used for separating coarse ash carried by the gas and returning the coarse ash into the second chamber (21) for continuous reaction.

3. The inclined rotating cone-entrained-flow bed, circulating fluidized bed coupled gasification apparatus according to claim 1, further comprising a bin pump (6), the bin pump (6) being in communication with the first outlet (32) and the second inlet (42), the bin pump (6) being for introducing fine ash in the dust removing member (3) into the third chamber (41).

4. The inclined rotating cone-entrained flow bed and circulating fluidized bed coupled gasification apparatus according to claim 2, further comprising:

a first heat exchanger (71), wherein the first heat exchanger (71) is communicated with the separator (5), the first chamber (11) and the third chamber (41), a refrigerant is arranged in the first heat exchanger (71), and gas discharged from the first chamber (11), the separator (5) and the third chamber (41) exchanges heat with the refrigerant;

the second heat exchanger (72), the second heat exchanger (72) is arranged in the third chamber (41) and is communicated with the first heat exchanger (71), and the refrigerant subjected to partial heat exchange in the first heat exchanger (71) enters the second heat exchanger (72).

5. The coupled gasification device of an inclined rotating cone and an entrained flow bed and a circulating fluidized bed according to claim 1, wherein the second inlet (42) is positioned at the top of the entrained flow bed body (4), the second inlet (42) is suitable for introducing gasifying agent and fine ash in the dust removing member (3), and the second outlet (43) is positioned below the second inlet (42).

6. The coupled gasification device of an inclined rotating cone and an entrained flow bed and a circulating fluidized bed according to claim 1, characterized in that the fluidized bed body (2) is provided with an opening (22), the opening (22) is positioned at the bottom of the fluidized bed body (2), and the opening (22) is suitable for introducing gasifying agent.

7. The coupling gasification device of the inclined rotating cone, the entrained flow bed and the circulating fluidized bed according to claim 1, further comprising a waste heat recoverer (73), a desulfurizer (74) and a gas station (75) which are sequentially communicated,

the dust removing piece (3) is further provided with a third outlet (33), the third outlet (33) is communicated with the waste heat recoverer (73), and the gas in the dust removing piece (3) is suitable for being discharged from the third outlet (33) after fine ash is removed and sequentially passes through the waste heat recoverer (73), the desulfurizer (74) and the gas station (75).

8. The inclined rotating cone-entrained flow bed and circulating fluidized bed coupled gasification device according to claim 1, wherein the inclined 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), a gap (17) is arranged between the rotating cone (15) and the stress application cone (16), the initial fuel can be discharged through the gap (17),

the inclined rotating cone body (1) is further provided with a feed inlet (18), the feed inlet (18) is communicated with the stress application cone (16), the feed inlet (18) is used for introducing initial fuel into the stress application cone (16), and the discharge outlet (14) is communicated with the gap (17) and the second chamber (21), so that the initial fuel discharged from the gap (17) can enter the second chamber (21) through the discharge outlet (14).

9. The coupled gasification device of an inclined rotating cone and an entrained flow bed and a circulating fluidized bed according to claim 8, further comprising a raw material bin (76), the raw material bin (76) being in communication with the feed inlet (18), the raw material bin (76) being adapted to introduce an initial fuel into the first chamber (11) through the feed inlet (18).

10. The coupled gasification device of an inclined rotating cone and an entrained flow bed and a circulating fluidized bed according to claim 1, further comprising a slag pool (77), wherein the slag pool (77) is communicated with the second chamber (21) and the third chamber (41), and the slag pool (77) is used for collecting slag generated by coke particles in the second chamber (21) and slag generated by fine ash in the third chamber (41).