Mobile gasifier

Abstract

The present invention relates to a mobile gasification furnace, comprising a furnace body and a furnace cover. An inner furnace chamber arranged vertically along the height direction of the furnace body is arranged in the middle of the furnace body, and the carbon material added from the charging port falls into the inner furnace chamber; an annular filter chamber is formed between the outer periphery of the inner furnace chamber and the inner wall of the furnace body, and a high-temperature resistant filter material is placed in the filter chamber; and a gasification agent distribution pipeline is extended into the inner furnace chamber to transport a gasification agent so that the gasification agent reacts with the carbon material; the coal gas generated by the reaction of the gasification agent and the carbon material flows around the inner furnace chamber and disperses into the filter material; a coal gas discharge pipe for discharging the coal gas is arranged on the outer side of the furnace body. The carbon material falls into the inner furnace chamber from the charging port, and the high-temperature gasification agent is distributed in the carbon material in the inner furnace chamber from the gasification agent distribution pipeline. The coal gas generated by the reaction layer is dusted by the filter material. In this structure, the carbon material is arranged longitudinally in the furnace chamber, so that the coal gas generated by the reaction is diffused to the surroundings, increasing the scattering area of ​​the generated coal gas, and also accelerating the reaction efficiency of the gasification agent and the carbon material.

Description

Technical Field

[0001] The invention relates to a mobile gasification furnace. Background Art

[0002] The traditional gasification furnace adopts a fixed type, with a grate at the bottom of the furnace body and carbon materials piled above the grate. The gasifier reacts with the carbon materials from the bottom to the top. In this structure, the carbon materials are distributed horizontally. Since the gasifier reacts with the carbon materials from the bottom to the top, the reaction efficiency in the later stage is low. In addition, due to the small horizontal space in the furnace body, the carbon materials are distributed less and the amount of coal gas produced by the reaction is small. Summary of the invention

[0003] In view of the above problems, the object of the present invention is to provide a mobile gasification furnace with longitudinal distribution of coal and higher gas production.

[0004] The technical solution for implementing the present invention is as follows

[0005] A mobile gasifier comprises a furnace body and a furnace cover fixed on the furnace body, wherein the furnace cover is provided with a feeding port for adding carbon material into the furnace body, an inner furnace chamber arranged vertically along the height direction of the furnace body is provided in the middle of the furnace body, and the carbon material added through the feeding port falls into the inner furnace chamber; an annular filter chamber is formed between the outer periphery of the inner furnace chamber and the inner wall of the furnace body, and a high-temperature resistant filter material is placed in the filter chamber; and a gasifying agent distribution pipeline is extended into the inner furnace chamber to transport a gasifying agent so that the gasifying agent reacts with the carbon material; the coal gas generated by the reaction of the gasifying agent and the carbon material flows around the inner furnace chamber and disperses into the filter material, and the dust in the coal gas is filtered out by the filter material; a coal gas discharge pipe is provided on the outer side of the furnace body for the coal gas generated by the reaction in the inner furnace chamber to be discharged from the furnace body after passing through the filter material.

[0006] Furthermore, a support plate is fixedly arranged at the bottom of the furnace body, and the support plate divides the furnace body into an upper chamber and a lower chamber. A cylindrical annular partition is fixedly arranged above the support plate, and the annular partition is located in the upper chamber, and the lower chamber is a conical blanking chamber; the upper end of the annular partition extends upward, and the lower end is fixed to the middle of the support plate; the inner part of the annular partition is an inner furnace chamber, and the outer periphery of the annular partition and the inner wall of the furnace body form the above-mentioned annular filter chamber; a number of diffusion holes are arranged on the annular partition for the coal gas generated in the inner furnace chamber to flow from the inner furnace chamber into the filter chamber.

[0007] Furthermore, a blanking port is opened in the middle of the support plate, and the blanking port is located below the inner furnace. A valve plate is arranged in the blanking port to open or close the blanking port. The valve plate is assembled in the blanking port by rotating the valve shaft. One end of the valve shaft extends outward to the outside of the furnace body and serves as an operating end for operating the rotation of the valve plate.

[0008] Furthermore, the gasification agent distribution pipeline includes a main pipeline extending into the inner furnace, the main pipeline extends to the bottom of the inner furnace, branch pipelines are fixedly arranged at intervals on the main pipeline, the branch pipelines are connected with the main pipeline, distribution air holes are arranged on the branch pipelines, and main air distribution holes are arranged on the main pipeline extending into the inner furnace.

[0009] Furthermore, the branch pipe is arranged obliquely with respect to the main pipe, and the branch pipe extends toward the inner wall of the inner furnace.

[0010] Furthermore, the furnace body is provided with a jacket, and a cooling medium is passed into the jacket.

[0011] Furthermore, the high temperature resistant filter material is quartz sand placed in the filter chamber.

[0012] The above technical scheme is adopted, the carbon material falls into the inner furnace from the feeding port, the high-temperature gasifier is distributed in the carbon material in the inner furnace from the gasifier distribution pipe, and the coal gas generated in the reaction layer is dusted by the filter material. In this structure, the carbon material is arranged vertically in the furnace, more material is added at one time, and the reaction layer is vertical, which is a coal layer, an oxidation layer, and a reduction layer from the inside of the furnace to the outside, so that the coal gas generated by the reaction diffuses to the surroundings, increasing the scattering area of ​​the generated coal gas, and also accelerating the reaction efficiency of the gasifier and the carbon material. The obtained coal gas is discharged from the coal gas exhaust pipe on the side of the furnace body after dust removal, and is collected or used in a centralized manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] In the accompanying drawings, 1 is a furnace body, 2 is a furnace cover, 3 is a jacket, 4 is a feeding port, 5 is an inner furnace, 6 is a filter chamber, 7 is a high-temperature filter material, 8 is a main pipeline, 9 is a branch pipeline, 10 is a gas discharge pipe, 11 is a support plate, 12 is an annular baffle, 13 is a blanking chamber, 14 is a blanking port, 15 is a valve plate, and 16 is a valve shaft. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1As shown, the mobile gasification furnace comprises a furnace body 1, a furnace cover 2 fixed on the top of the furnace body, a jacket 3 is arranged in the middle of the furnace body, and a cooling medium is passed into the jacket to cool the furnace body during use. A feeding port 4 for adding carbon material into the furnace body is arranged on the furnace cover, and an inner furnace 5 arranged vertically along the height direction of the furnace body is arranged in the middle of the furnace body, and the carbon material added from the feeding port falls into the inner furnace; an annular filter chamber 6 is formed between the outer periphery of the inner furnace and the inner wall of the furnace body, and a high-temperature resistant filter material 7 is placed in the filter chamber; the high-temperature resistant filter material is quartz sand placed in the filter chamber, and the generated coal gas passes through the quartz sand to remove the particulate dust contained in it. During the gasification reaction, the temperature of the quartz sand rises, and the tar contained in the coal gas can also be decomposed, so that the discharged coal gas does not contain tar; and a gasifier 6 is extended into the inner furnace to transport gas. The gasifier distribution pipeline makes the gasifier react with the carbon material; the gasifier distribution pipeline includes a main pipeline 8 extending from the top of the furnace body into the inner furnace, the main pipeline is located in the center of the inner furnace, and the main pipeline extends to the bottom of the inner furnace. The branch pipelines 9 arranged at intervals are fixedly arranged on the main pipeline, and the branch pipelines are connected with the main pipeline. Distribution holes are arranged on the branch pipelines, and main distribution holes are arranged on the main pipeline extending into the inner furnace. The external high-temperature gasifier enters through the main pipeline and is evenly distributed to the inner furnace through the branch pipelines. In order to obtain better gasifier distribution, the gasifier is also discharged from the main distribution holes on the main pipeline in the furnace. In order to better distribute the gasifier evenly, the branch pipeline is arranged at an angle with the main pipeline, and the branch pipeline extends to the inner wall of the inner furnace, that is, the main pipeline is arranged in a vertical direction, and the branch pipeline is arranged at an angle of 45 degrees upward or downward to improve the uniformity of the distribution of the gasifier into the furnace. The gasifying agent distributed in this way can react with the surrounding carbon materials, increase the reaction area, and improve the gas production.

[0017] The coal gas generated by the reaction of the gasifying agent and the carbon material flows around the inner furnace and diffuses into the filter material, that is, the generated coal gas can diffuse to all sides at the same time, while in the method of the prior art, the coal gas can only diffuse upward, thereby accelerating the discharge of the coal gas; the dust in the coal gas is filtered out by the filter material; the outer side of the furnace body is provided with a coal gas discharge pipe 10 for the coal gas generated by the reaction in the inner furnace to pass through the filter material and then be discharged from the furnace body, and the discharged coal gas is collected or discharged into related equipment for use.

[0018] A support plate 11 is welded and fixedly provided at the bottom of the furnace body, and the support plate divides the furnace body into an upper chamber and a lower chamber. A cylindrical annular partition 12 is fixedly provided above the support plate, and the annular partition vertically constrains the carbon material in the inner furnace chamber. The material thereof can be made of the furnace chamber material currently used. The annular partition is located in the upper chamber, and the lower chamber is a conical blanking chamber 13; the upper end of the annular partition extends upward, and the lower end is fixed to the middle of the support plate; the inner furnace chamber is inside the annular partition, and the above-mentioned annular filter chamber is formed between the outer periphery of the annular partition and the inner wall of the furnace body; a number of diffusion holes are arranged around the annular partition for the coal gas generated in the inner furnace chamber to flow from the inner furnace chamber into the filter chamber.

[0019] A material drop port 14 is provided in the middle of the support plate for the discharge of the carbon material after the reaction. The material drop port is located below the inner furnace. A valve plate 15 is provided in the material drop port to open or close the material drop port. The valve plate is in a closed state when it is horizontal and in an open state when it is vertical. The valve plate is rotatably assembled in the material drop port through a valve shaft 16. One end of the valve shaft extends outward to the outside of the furnace body as an operating end for operating the rotation of the valve plate.

Claims

1. A mobile gasification furnace, comprising a furnace body and a furnace cover fixed on the furnace body, wherein the furnace cover is provided with a feeding port for adding carbon material into the furnace body, characterized in that: An inner furnace chamber is arranged vertically along the height direction of the furnace body in the middle of the furnace body, and the carbon material added from the feeding port falls into the inner furnace chamber; An annular filter chamber is formed between the outer periphery of the inner furnace and the inner wall of the furnace body, and a high temperature resistant filter material is placed in the filter chamber; and a gasifying agent distribution pipeline extending into the inner furnace to convey the gasifying agent so that the gasifying agent reacts with the carbon material; The coal gas generated by the reaction between the gasifying agent and the carbon material flows around the inner furnace and diffuses into the filter material, and the dust in the coal gas is filtered out by the filter material; The outer side of the furnace body is provided with a gas discharge pipe for the coal gas generated by the reaction in the inner furnace to be discharged from the furnace body after passing through the filter material; A support plate is fixedly arranged at the bottom of the furnace body, and the support plate divides the furnace body into an upper chamber and a lower chamber. A cylindrical annular baffle is fixedly arranged above the support plate, and the annular baffle is located in the upper chamber, and the lower chamber is a conical blanking chamber; The upper end of the annular partition extends upward, and the lower end is fixed to the middle of the support plate; the inner furnace is inside the annular partition, and the above-mentioned annular filter chamber is formed between the outer periphery of the annular partition and the inner wall of the furnace body; a number of diffusion holes are arranged on the annular partition for the coal gas generated in the inner furnace to flow from the inner furnace into the filter chamber.

2. The mobile gasifier according to claim 1, characterized in that: A material drop opening is provided in the middle of the support plate and is located below the inner furnace. A valve plate is provided in the material drop opening to open or close the material drop opening. The valve plate is assembled in the material drop opening by rotating the valve shaft. One end of the valve shaft extends outward to the outside of the furnace body and serves as an operating end for operating the rotation of the valve plate.

3. The mobile gasifier according to claim 1 or 2, characterized in that: The gasifying agent distribution pipeline includes a main pipeline extending into the inner furnace, the main pipeline extends to the bottom of the inner furnace, branch pipelines arranged at intervals are fixedly arranged on the main pipeline, the branch pipelines are connected with the main pipeline, distribution air holes are arranged on the branch pipelines, and main air distribution holes are arranged on the main pipeline extending into the inner furnace.

4. The mobile gasifier according to claim 3, characterized in that: The branch pipe is arranged obliquely with the main pipe, and the branch pipe extends toward the inner wall of the inner furnace.

5. The mobile gasifier according to claim 1, characterized in that: The furnace body is provided with a jacket, and a cooling medium is passed into the jacket.

6. The mobile gasifier according to claim 1, characterized in that: The high temperature resistant filter material is quartz sand placed in the filter chamber.

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