Split type horizontal circulating fluidized bed gasifier

Abstract

The utility model discloses a split type horizontal circulating fluidized bed gasification furnace, which relates to the technical field of gasification furnaces and comprises a base, a furnace body fixedly arranged on one side of the top end of the base, a solid-gas separation box fixedly arranged in the middle of the top end of the base, a water storage tank fixedly arranged on the other side of the top end of the base, and a water pump fixedly arranged on the top end of the water storage tank. The waste heat recovery device has the advantages that a water source in the water storage tank is pumped through the water pumping end of the water pump, the water source is injected into the first heat exchange pipe through the water outlet end of the water pump and the preheating pipe, and the water source absorbs heat in gas to be exhausted; according to the gasification furnace, the two second heat exchange pipes are arranged, so that a worker can conveniently collect a final gas product, a water source absorbing heat is injected into the two second heat exchange pipes through a connecting pipeline and an arc-shaped pipe, raw materials and mixed steam which are fed into the gasification furnace can be preheated, and the efficiency of combustion reaction in the gasification furnace is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gasifiers, and in particular relates to a split-type horizontal circulating fluidized bed gasifier. Background Art

[0002] Fluidized bed, the full name of which is fluidized bed, is a reactor that uses gas or liquid to pass through a granular solid layer to put solid particles into a suspended motion state and carry out a gas-solid phase reaction process or a liquid-solid phase reaction process. It is often used in the process of combustion and gas production. For example, a fluidized bed gasifier uses this method to produce coal gas through solid particle raw materials.

[0003] When an existing fluidized bed gasifier system is in use, it generally directly introduces solid particle raw materials and mixed steam into a reaction tank through a conduit for combustion, thereby generating the required gas. However, in actual use, the temperature of the raw materials and mixed steam is relatively low when they are introduced into the reaction tank, which leads to a slow combustion rate, affecting the overall production efficiency. At the same time, the temperature of the final gas product is relatively high when it is discharged and collected, which makes it inconvenient for operators to carry out subsequent processing and collection in a timely manner, or requires other equipment to be aligned for sufficient cooling, which is relatively wasteful. Utility Model Content

[0004] The utility model aims to provide a split horizontal circulating fluidized bed gasifier to solve the problems of slow combustion efficiency and inconvenience in collecting gas products at high temperature mentioned in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a split-type horizontal circulating fluidized bed gasifier, comprising a base, a furnace body is fixedly provided on one side of the top of the base, a solid-steam separation box is fixedly provided in the middle of the top of the base, a water storage tank is fixedly provided on the other side of the top of the base, a water pump is fixedly provided on the top of the water storage tank, the water pumping end of the water pump is connected with the interior of the water storage tank through a water pumping pipe, a circulation component is provided at the water outlet end of the water pump, a processing component is provided inside the solid-steam separation box, a feed pipe is fixedly provided on one side of the furnace body, an air intake pipe is fixedly provided on the other side of the furnace body, an exhaust pipe is fixedly provided on the inner wall of the front side of the solid-steam separation box, and a connecting pipe is fixedly provided between the furnace body and the solid-steam separation box.

[0006] Preferably, the circulation component includes a first heat exchange tube, two second heat exchange tubes, a preheating tube, a connecting pipe, an arc tube and a return pipe, the first heat exchange tube is fixedly arranged on the surface of the exhaust pipe, the two second heat exchange tubes are respectively fixedly arranged on the surfaces of the feed pipe and the intake pipe, the water outlet end of the water pump is fixedly connected with the preheating tube through the water outlet pipe, one end of the preheating tube is connected to the first heat exchange tube, a connecting pipe is fixedly arranged between the first heat exchange tube and one of the second heat exchange tubes, an arc tube is fixedly arranged between the two second heat exchange tubes, and a return pipe is fixedly arranged between the other second heat exchange tube and the water tank.

[0007] Preferably, the processing component includes a driving motor, a pushing shaft, a spiral blade and a filter plate. The driving motor is fixedly arranged at the bottom of one side of the solid-steam separation box, the transmission shaft of the driving motor is fixedly connected to the pushing shaft, the surface of the pushing shaft is fixedly provided with a spiral blade, and the filter plate is fixedly arranged inside the solid-steam separation box.

[0008] Preferably, a water inlet pipe is fixedly provided on the inner wall at the top of the water tank, a drain pipe is fixedly provided on the bottom of the front of the water tank, and the top of the water inlet pipe, one end of the drain pipe, the top of the feed pipe, the top of the air inlet pipe and the top of the exhaust pipe are all threadedly connected with sealing covers.

[0009] Preferably, a refrigeration fin is fixedly provided on one side of the water storage tank.

[0010] Preferably, an observation window is embedded in the front side of the furnace body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The water source in the water storage tank is extracted through the pumping end of the water pump, and is injected into the interior of the first heat exchange tube through the water outlet end of the water pump and the preheating pipe. The water source absorbs the heat in the gas to be discharged, so that the staff can collect the final gas product. The water source that absorbs the heat is then injected into the interior of the two second heat exchange tubes through the connecting pipe and the arc pipe, and then the raw materials and mixed steam sent to the gasifier can be preheated, which effectively improves the efficiency of the combustion reaction in the gasifier. Finally, the water source is returned to the interior of the water storage tank through the reflux pipe, thereby realizing the recycling of water sources and reducing the waste of water resources.

[0013] 2. By starting the driving motor to drive the push shaft and spiral blades to rotate, the particles retained at the bottom of the solid-steam separation box can be pushed back into the furnace body, so that the unreacted solid raw materials can react again, further improving the utilization rate of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the solid-steam separation box of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the feed pipe of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the water storage tank of the utility model.

[0018] In the figure: 1. base; 2. furnace body; 3. solid-steam separation box; 4. water storage tank; 5. water pump; 6. circulation component; 7. treatment component; 8. feed pipe; 9. air inlet pipe; 10. exhaust pipe; 11. water inlet pipe; 12. drain pipe; 13. sealing cover; 14. refrigeration plate; 15. observation window; 16. connecting pipe; 61. first heat exchange tube; 62. second heat exchange tube; 63. preheating tube; 64. connecting pipe; 65. arc tube; 66. reflux pipe; 71. driving motor; 72. push shaft; 73. spiral blade; 74. filter plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] See also Figure 1-4 The utility model provides a split-type horizontal circulating fluidized bed gasifier, including a base 1, a furnace body 2 is fixedly provided on one side of the top of the base 1, a solid-steam separation box 3 is fixedly provided in the middle of the top of the base 1, a water storage tank 4 is fixedly provided on the other side of the top of the base 1, a water pump 5 is fixedly provided on the top of the water storage tank 4, a water pumping end of the water pump 5 is connected with the inside of the water storage tank 4 through a water pumping pipe, a circulation component 6 is provided at the water outlet end of the water pump 5, a processing component 7 is provided inside the solid-steam separation box 3, a feed pipe 8 is fixedly provided on one side of the furnace body 2, an air intake pipe 9 is fixedly provided on the other side of the furnace body 2, an exhaust pipe 10 is fixedly provided on the inner wall of the front of the solid-steam separation box 3, and a connecting pipe 16 is fixedly provided between the furnace body 2 and the solid-steam separation box 3;

[0022] A water inlet pipe 11 is fixedly provided on the inner wall of the top of the water storage tank 4, a drain pipe 12 is fixedly provided on the bottom of the front of the water storage tank 4, and a sealing cover 13 is threadedly connected to the top of the water inlet pipe 11, one end of the drain pipe 12, the top of the feed pipe 8, the top of the air inlet pipe 9 and the top of the exhaust pipe 10;

[0023] A cooling fin 14 is fixedly provided on one side of the water storage tank 4;

[0024] An observation window 15 is embedded in the front of the furnace body 2 .

[0025] See also Figure 1-4 The utility model provides a split-type horizontal circulating fluidized bed gasifier, which also includes a circulation component 6. The circulation component 6 includes a first heat exchange tube 61, two second heat exchange tubes 62, a preheating tube 63, a connecting pipe 64, an arc tube 65 and a return pipe 66. The first heat exchange tube 61 is fixedly arranged on the surface of the exhaust pipe 10, and the two second heat exchange tubes 62 are respectively fixedly arranged on the surfaces of the feed pipe 8 and the intake pipe 9. The water outlet of the water pump 5 is fixedly connected with the preheating tube 63 through the water outlet pipe. One end of the preheating tube 63 is connected to the first heat exchange tube 61. A connecting pipe 64 is fixedly arranged between the first heat exchange tube 61 and one of the second heat exchange tubes 62. An arc tube 65 is fixedly arranged between the two second heat exchange tubes 62. A return pipe 66 is fixedly arranged between the other second heat exchange tube 62 and the water storage tank 4.

[0026] Specifically, Figure 1-Figure 4 As shown, first, when the gasifier is used to burn raw materials, the gas generated after the combustion reaction of the raw materials and the mixed steam enters the interior of the solid-steam separation box 3 through the connecting pipe 16, and is then discharged through the exhaust pipe 10. At this time, the water source in the water storage tank 4 is extracted through the pumping end of the water pump 5, and is injected into the interior of the first heat exchange tube 61 through the water outlet end of the water pump 5 and the preheating tube 63. The water source absorbs the heat in the gas to be discharged, and then the water source that absorbs the heat is injected into the interior of the two second heat exchange tubes 62 through the connecting pipe 64 and the arc tube 65, so that the raw materials and the mixed steam sent to the gasifier can be preheated, which effectively improves the efficiency of the combustion reaction in the gasifier. Finally, the water source is refluxed to the interior of the water storage tank 4 through the reflux pipe 66, thereby realizing the recycling of water sources and reducing the waste of water resources.

[0027] Embodiment 2:

[0028] The processing assembly 7 includes a driving motor 71, a push shaft 72, a spiral blade 73 and a filter plate 74. The driving motor 71 is fixedly arranged at the bottom of one side of the solid-steam separation box 3. The transmission shaft of the driving motor 71 is fixedly connected to the push shaft 72. The surface of the push shaft 72 is fixedly provided with a spiral blade 73. The filter plate 74 is fixedly arranged inside the solid-steam separation box 3.

[0029] Specifically, Figure 1-Figure 4As shown, first, when the raw materials inside the solid-steam separation box 3 react with the mixed steam to burn, the solid particles are separated from the generated gas by the barrier of the filter plate 74 and retained at the bottom of the solid-steam separation box 3. When the gasification furnace reaction is completed, the driving motor 71 is started to drive the push shaft 72 and the spiral blade 73 to rotate, and then the particles retained at the bottom of the solid-steam separation box 3 can be pushed back into the furnace body 2, so that the unreacted solid raw materials can react again, further improving the utilization rate of the raw materials.

[0030] Working principle: When in use, the utility model is a split-type horizontal circulating fluidized bed gasifier. First, raw materials and mixed steam are injected into the interior of the furnace body 2 through the feed pipe 8 and the air inlet pipe 9. The gas generated after the combustion reaction of the raw materials and the mixed steam enters the interior of the solid-steam separation box 3 through the connecting pipe 16, and is then discharged through the exhaust pipe 10. At this time, the water source in the water storage tank 4 is extracted through the water pump end of the water pump 5, and is injected into the interior of the first heat exchange tube 61 through the water outlet end of the water pump 5 and the preheating pipe 63. The water source absorbs the heat in the gas to be discharged, and then the water source that absorbs the heat is injected into the interior of the two second heat exchange tubes 62 through the connecting pipe 64 and the arc pipe 65, so that the raw materials and mixed steam sent to the gasifier can be The steam is preheated, which effectively improves the efficiency of the combustion reaction in the gasifier. Finally, the water source is refluxed to the inside of the water storage tank 4 through the reflux pipe 66, thereby realizing the recycling of the water source and reducing the waste of water resources. The gas generated by the reaction in the furnace body 2 is discharged from the exhaust pipe 10 through the connecting pipe 16. The solid particles are separated from the generated gas by the barrier of the filter plate 74 and retained at the bottom of the solid-steam separation box 3. When the reaction of the gasifier is completed, the driving motor 71 is started to drive the push shaft 72 and the spiral blade 73 to rotate, and then the particles retained at the bottom of the solid-steam separation box 3 can be pushed back to the inside of the furnace body 2, so that the unreacted solid raw materials can react again, further improving the utilization rate of the raw materials.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split-type horizontal circulating fluidized bed gasifier, comprising a base (1), characterized in that: A furnace body (2) is fixedly provided on one side of the top of the base (1), a solid-steam separation box (3) is fixedly provided in the middle of the top of the base (1), a water storage tank (4) is fixedly provided on the other side of the top of the base (1), a water pump (5) is fixedly provided on the top of the water storage tank (4), a water pump (5) is fixedly provided on the top of the water storage tank (4), a water pumping end of the water pump (5) is connected to the inside of the water storage tank (4) through a water pumping pipe, a circulation component (6) is provided at the water outlet end of the water pump (5), a processing component (7) is provided inside the solid-steam separation box (3), a feed pipe (8) is fixedly provided on one side of the furnace body (2), an air intake pipe (9) is fixedly provided on the other side of the furnace body (2), an exhaust pipe (10) is fixedly provided on the inner wall of the front of the solid-steam separation box (3), and a connecting pipe (16) is fixedly provided between the furnace body (2) and the solid-steam separation box (3).

2. The split-type horizontal circulating fluidized bed gasifier according to claim 1, characterized in that: The circulation component (6) comprises a first heat exchange tube (61), two second heat exchange tubes (62), a preheating tube (63), a connecting pipe (64), an arc-shaped tube (65) and a return pipe (66); the first heat exchange tube (61) is fixedly arranged on the surface of the exhaust pipe (10); the two second heat exchange tubes (62) are respectively fixedly arranged on the surfaces of the feed pipe (8) and the intake pipe (9); the water outlet of the water pump (5) is fixedly connected to the preheating tube (63) through the water outlet pipe; one end of the preheating tube (63) is connected to the first heat exchange tube (61); a connecting pipe (64) is fixedly arranged between the first heat exchange tube (61) and one of the second heat exchange tubes (62); an arc-shaped tube (65) is fixedly arranged between the two second heat exchange tubes (62); and a return pipe (66) is fixedly arranged between the other second heat exchange tube (62) and the water storage tank (4).

3. The split-type horizontal circulating fluidized bed gasifier according to claim 1, characterized in that: The processing assembly (7) comprises a driving motor (71), a pushing shaft (72), a spiral blade (73) and a filter plate (74); the driving motor (71) is fixedly arranged at the bottom of one side of the solid-steam separation box (3); the transmission shaft of the driving motor (71) is fixedly connected to the pushing shaft (72); the surface of the pushing shaft (72) is fixedly provided with a spiral blade (73); and the filter plate (74) is fixedly arranged inside the solid-steam separation box (3).

4. The split-type horizontal circulating fluidized bed gasifier according to claim 1, characterized in that: A water inlet pipe (11) is fixedly provided on the inner wall of the top end of the water storage tank (4), a drain pipe (12) is fixedly provided on the bottom of the front end of the water storage tank (4), and a sealing cover (13) is threadedly connected to the top end of the water inlet pipe (11), one end of the drain pipe (12), the top end of the feed pipe (8), the top end of the air inlet pipe (9) and the top end of the exhaust pipe (10).

5. The split-type horizontal circulating fluidized bed gasifier according to claim 1, characterized in that: A refrigeration fin (14) is fixedly provided on one side of the water storage tank (4).

6. The split-type horizontal circulating fluidized bed gasifier according to claim 1, characterized in that: An observation window (15) is embedded on the front side of the furnace body (2).

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