Powdered coal gasification furnace

Abstract

The utility model provides a pulverized coal gasification furnace, and belongs to the technical field of gasification furnaces. The pulverized coal gasification furnace comprises a connecting assembly and a scattering assembly, a motor is arranged on one side of a stock bin, a scattering rod is rotationally connected with the stock bin and fixedly connected with the output end of the motor, the scattering rod and a scraper blade are driven by the motor to rotate, the scattering rod can scatter blocky pulverized coal, the blocky pulverized coal can be effectively scattered, and the problem of pulverized coal caking is solved; according to the invention, pulverized coal can uniformly enter the gasification furnace, the gasification efficiency is improved, the rotation of the scraper blade can scrape the pulverized coal on the sieve plate, and the cleaning function of the scraper blade can reduce the residue of the pulverized coal, reduce the risk of equipment blockage and reduce the frequency of shutdown maintenance; and a clamping connection mode is adopted, so that the sieve plate is conveniently disassembled and cleaned, blocky pulverized coal is conveniently scattered, the phenomenon that the sieve plate is blocked by pulverized coal piles is prevented, meanwhile, the sieve plate is conveniently disassembled and cleaned, and the practicability is reduced.

Description

Technical Field

[0001] This application relates to the field of gasifiers, and more specifically, to a pulverized coal gasifier. Background Technology

[0002] Coal, as a fossil fuel, is one of the essential energy sources for people's production and daily life, both now and for a long time to come. Direct combustion of coal not only wastes a large amount of resources but also emits harmful gases such as SO2, NOx, and CO, causing environmental pollution. Therefore, promoting the clean utilization of coal has become an inevitable choice for industry development. For example, a normal-pressure pulverized coal gasification furnace, as described in Chinese patent application number CN202322058106.4, includes a base, a furnace body fixedly connected to the top of the base, a connecting pipe fixedly connected to the top of the furnace body, a lifting screen box inside the connecting pipe, a heating block fixedly connected to the outer wall of the connecting pipe, a feed pipe fixedly connected to the top of the connecting pipe, a sliding seat fixedly connected to the inner wall of the connecting pipe, the sliding seat slidably connected to the outer wall of the lifting screen box, a rotating motor fixedly connected to the top of the connecting pipe, an L-shaped rotating rod fixedly connected to the output end of the rotating motor, an abutment rod fixedly connected to the top of the L-shaped rotating rod, and a rolling ball installed at the top of the abutment rod. When in use, the utility model starts the rotating motor to drive the L-shaped rotating rod to rotate. When the abutting rod follows the rotation of the L-shaped rotating rod, the rolling ball at its top lifts the abutting block, causing the abutting block to slide up and down with the rotation position of the abutting rod, thereby realizing the vibration of the lifting screen box, so that the pulverized coal inside the lifting screen box falls evenly.

[0003] However, the above solution still has certain drawbacks: First, the vibration amplitude of the lifting screen box is limited, and large particles of coal are easy to accumulate on the surface of the lifting screen box. Second, it is inconvenient to break up lumpy coal, which affects the gasification effect. The lifting screen box is located inside the connecting pipe, making it inconvenient to disassemble and clean it. Long-term use will affect the screening effect, thus reducing its practicality. Utility Model Content

[0004] To overcome the above shortcomings, this application provides a pulverized coal gasifier, which aims to improve the limitations of the vibration amplitude of the lifting screen box in related technologies. Large pulverized coal particles tend to accumulate on the surface of the lifting screen box, and it is inconvenient to break up lumpy pulverized coal, which affects the gasification effect. Furthermore, the lifting screen box is located inside the connecting pipe, making it inconvenient to disassemble and clean it. Long-term use affects the screening effect, thereby reducing its practicality.

[0005] This application provides a pulverized coal gasification furnace including a connecting assembly and a dispersing assembly.

[0006] The connecting assembly includes a gasifier, a hopper, an elastic bracket, and a screen plate. The hopper is located at one end of the gasifier, the elastic bracket is located on one side of the hopper, and the screen plate is slidably engaged with the hopper via the elastic bracket. The dispersing assembly includes a motor, a dispersing rod, and scrapers. The motor is located on one side of the hopper, the dispersing rod is rotatably connected to the hopper, and the dispersing rod is fixedly connected to the output end of the motor. The two scrapers are fixedly connected to the dispersing rod and are in contact with the screen plate.

[0007] In one specific implementation, the gasifier includes a bottom plate, a furnace body, a first gasification ring, and a second gasification ring. The furnace body is disposed on one side of the bottom plate, the first gasification ring is disposed on one side of the furnace body, and the second gasification ring is disposed on one side of the furnace body.

[0008] In the above-mentioned process, when pulverized coal enters the gasification chamber of the furnace, a first gasifying agent is supplied to the gasification chamber of the furnace through a first gasification ring, so that the first gasifying agent reacts with the coal that has been gasified in the upper and middle regions of the furnace. A second gasifying agent is supplied to the gasification chamber of the furnace through a second gasification ring, so that the second gasifying agent participates in the gasification reaction to produce coal gas.

[0009] In one specific implementation, a gas pipe is provided on one side of the furnace body.

[0010] In the above process, a gas pipe is installed on one side of the furnace body, and the gas reaches the target location through the gas pipe to finally complete the work.

[0011] In one specific implementation, a feed pipe is provided on one side of the hopper.

[0012] In the above implementation process, a feed pipe is installed on one side of the silo to facilitate the entry of pulverized coal into the silo.

[0013] In one specific implementation, the elastic card holder includes a fixed plate, a plug rod, and a spring. The plug rod is connected through one side of the fixed plate, one end of the spring is fixedly connected to the fixed plate, and the other end of the spring is fixedly connected to the plug rod.

[0014] In the above process, the insertion rod and spring can play a locking role.

[0015] In one specific implementation, the sieve plate includes an arc-shaped plate, a circular frame, a perforated plate, and a connecting block. The circular frame is fixedly connected to the arc-shaped plate, the perforated plate is disposed inside the circular frame, and the connecting block is fixedly connected to the arc-shaped plate.

[0016] In the above process, the curved plate and the circular frame can serve as a connection, and the perforated plate can serve as a screening effect.

[0017] In one specific implementation, a plurality of sieve holes are provided on one side of the perforated plate.

[0018] In the above process, a number of sieve holes are provided on one side of the perforated plate, which can be used to screen pulverized coal.

[0019] In one specific implementation, a through hole is provided on one side of the connecting block, and the insertion rod is slidably connected to the through hole.

[0020] In the above implementation process, a through hole is provided on one side of the connecting block. By pulling the insert rod, the insert rod is separated from the through hole. Then, the connecting block can be pulled to move the arc plate and the round frame out of the hopper. The perforated plate can be removed for cleaning. Conversely, the perforated plate can be installed inside the hopper.

[0021] In one specific implementation, the dispersing rod includes a rotating rod and dispersing blades, and a plurality of dispersing blades are provided on the surface of the rotating rod.

[0022] In the above process, the rotation of the rotating rod can drive multiple dispersing blades to rotate, and the dispersing blades can break up the lumpy coal.

[0023] In one specific implementation, a fixing block is provided at one end of the dispersing blade, and the fixing block is fixedly connected to the rotating rod.

[0024] In the above implementation process, a fixing block is provided at one end of the disintegrating blade, which can serve as a connection.

[0025] Compared with existing technologies, the beneficial effects of this application are as follows: Firstly, the motor drives the dispersing rod and scraper to rotate. The dispersing rod can disperse lumpy pulverized coal, effectively solving the problem of pulverized coal agglomeration, ensuring that the pulverized coal enters the gasifier evenly, and improving gasification efficiency. The rotating scraper can scrape the pulverized coal on the screen plate. The scraper cleaning function can reduce pulverized coal residue, reduce the risk of equipment blockage, and reduce the frequency of downtime maintenance. Since the screen plate is slidably connected to the hopper through an elastic bracket, the snap-fit ​​connection method facilitates the disassembly and cleaning of the screen plate, thereby facilitating the dispersal of lumpy pulverized coal and preventing pulverized coal piles from clogging the screen plate. At the same time, the screen plate is easy to disassemble and clean, thus reducing its practicality. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a pulverized coal gasification furnace provided in an embodiment of this application;

[0028] Figure 2 A schematic diagram of the gasifier structure provided for an embodiment of this application;

[0029] Figure 3 A schematic diagram of the sieve plate structure provided for an embodiment of this application;

[0030] Figure 4 A schematic diagram of the flexible card holder structure provided in the embodiments of this application.

[0031] In the diagram: 100-Connecting assembly; 110-Gasifier; 111-Bottom plate; 112-Furnace body; 1121-Gas pipe; 113-First gasification ring; 114-Second gasification ring; 120-Hopper; 121-Feed pipe; 130-Elastic seat; 131-Fixing plate; 132-Insertion rod; 133-Spring; 140-Sieve plate; 141-Arc plate; 142-Circular frame; 143-Perforated plate; 1431-Sieve hole; 144-Connecting block; 1441-Through hole; 200-Dispersing assembly; 210-Motor; 220-Dispersing rod; 221-Rotating rod; 222-Dispersing blade; 2221-Fixing block; 230-Scraper. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Please see Figure 1-4 This application provides a pulverized coal gasification furnace including a connecting assembly 100 and a dispersing assembly 200.

[0035] Please see Figure 1-4The connecting assembly 100 includes a gasifier 110, a hopper 120, an elastic retainer 130, and a screen plate 140. The hopper 120 is located at one end of the gasifier 110, and the elastic retainer 130 is located on one side of the hopper 120. The screen plate 140 is slidably engaged with the hopper 120 via the elastic retainer 130. The gasifier 110 includes a bottom plate 111, a furnace body 112, a first gasification ring 113, and a second gasification ring 114. The furnace body 112 is located on one side of the bottom plate 111, and the first gasification ring 113 is located on the furnace body. On one side of furnace body 112, a second gasification ring 114 is disposed on one side of furnace body 112. When pulverized coal enters the gasification chamber of furnace body 112, a first gasifying agent is supplied to the gasification chamber of furnace body 112 through the first gasification ring 113 so that the first gasifying agent reacts with the coal after gasification treatment in the upper and middle areas of furnace body 112. A second gasifying agent is supplied to the gasification chamber of furnace body 112 through the second gasification ring 114 so that the second gasifying agent participates in the gasification reaction to produce coal gas.

[0036] In some specific implementation schemes, a gas pipe 1121 is provided on one side of the furnace body 112. Gas reaches the target location through the gas pipe 1121 to complete the work. An electric valve is added to the gas pipe 1121 to enable operation. A feed pipe 121 is provided on one side of the hopper 120 to facilitate the entry of pulverized coal into the hopper 120. The elastic retainer 130 includes a fixed plate 131, a plug rod 132, and a spring 133. The plug rod 132 is connected through one side of the fixed plate 131. One end of the spring 133 is fixedly connected to the fixed plate 131, and the other end of the spring 133 is fixedly connected to the plug rod 132. The plug rod 132 and the spring 133 can play a locking role.

[0037] In some specific implementations, the sieve plate 140 includes an arc-shaped plate 141, a circular frame 142, a perforated plate 143, and a connecting block 144. The circular frame 142 is fixedly connected to the arc-shaped plate 141, the perforated plate 143 is disposed inside the circular frame 142, and the connecting block 144 is fixedly connected to the arc-shaped plate 141. The arc-shaped plate 141 and the circular frame 142 serve as a connection, and the perforated plate 143 performs the screening effect. A plurality of sieve holes 1431 are provided on one side of the perforated plate 143, allowing passage of... The sieve hole 1431 can screen pulverized coal. A through hole 1441 is provided on one side of the connecting block 144. The insert rod 132 is slidably connected to the through hole 1441. By pulling the insert rod 132, the insert rod 132 is separated from the through hole 1441. Then, the connecting block 144 can be pulled to move the arc plate 141 and the circular frame 142 out of the hopper 120. The perforated plate 143 can be taken out for cleaning. Conversely, the perforated plate 143 can be installed inside the hopper 120.

[0038] Please see Figure 1 and Figure 4The dispersing assembly 200 includes a motor 210, a dispersing rod 220, and scrapers 230. The motor 210 is located on one side of the hopper 120. The dispersing rod 220 is rotatably connected to the hopper 120 and fixedly connected to the output end of the motor 210. Two scrapers 230 are fixedly connected to the dispersing rod 220 and contact the screen plate 140. The dispersing rod 220 includes a rotating rod 221 and dispersing blades 222. Several dispersing blades 222 are provided on the surface of the rotating rod 221. The rotation of the rotating rod 221 can drive the multiple dispersing blades 222 to rotate. The dispersing blades 222 can disperse lumpy coal. A fixing block 2221 is provided at one end of the dispersing blade 222. The fixing block 2221 is fixedly connected to the rotating rod 221 and serves as a connection.

[0039] The working principle of this pulverized coal gasifier is as follows: During operation, the motor 210 drives the rotating rod 221 to rotate, which in turn drives multiple dispersing blades 222. These blades dispersing blades 222 break up lumps of pulverized coal, effectively breaking up lumps and solving the problem of pulverized coal agglomeration. This ensures that the pulverized coal enters the gasifier 110 evenly, improving gasification efficiency. Meanwhile, the rotating scraper 230 scrapes the pulverized coal on the screen plate 140. The scraper 230's cleaning function reduces pulverized coal residue, lowers the risk of equipment blockage, and reduces the frequency of downtime maintenance. Pulling the insertion rod 132 separates it from the through hole 1441. Then, pulling the connecting block 144 moves the arc plate 141 and the circular frame 142 out of the hopper 120, allowing the perforated plate 143 to be removed for cleaning. Conversely, the perforated plate 143 can be installed inside the hopper 120. The snap-fit ​​connection facilitates the disassembly and cleaning of the perforated plate 143, which in turn facilitates the breaking up of lumpy pulverized coal and prevents pulverized coal from clogging the perforated plate 143. However, the easy disassembly and cleaning of the perforated plate 143 reduces its practicality.

[0040] It should be noted that the specific models and specifications of the furnace body 112, the first gasification ring 113, the second gasification ring 114, and the motor 210 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0041] The power supply and operating principle of the furnace body 112, the first gasification ring 113, the second gasification ring 114 and the motor 210 are clear to those skilled in the art and will not be described in detail here.

[0042] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pulverized coal gasification furnace, characterized in that, include A connecting assembly (100) includes a gasifier (110), a hopper (120), an elastic bracket (130), and a sieve plate (140). The hopper (120) is located at one end of the gasifier (110), the elastic bracket (130) is located on one side of the hopper (120), and the sieve plate (140) is slidably engaged with the hopper (120) through the elastic bracket (130). A dispersing assembly (200) includes a motor (210), a dispersing rod (220), and scrapers (230). The motor (210) is located on one side of the hopper (120). The dispersing rod (220) is rotatably connected to the hopper (120) and fixedly connected to the output end of the motor (210). Two scrapers (230) are fixedly connected to the dispersing rod (220) and are in contact with the sieve plate (140).

2. The pulverized coal gasification furnace according to claim 1, characterized in that, The gasifier (110) includes a bottom plate (111), a furnace body (112), a first gasification ring (113), and a second gasification ring (114). The furnace body (112) is disposed on one side of the bottom plate (111), the first gasification ring (113) is disposed on one side of the furnace body (112), and the second gasification ring (114) is disposed on one side of the furnace body (112).

3. A pulverized coal gasification furnace according to claim 2, characterized in that, A gas pipe (1121) is provided on one side of the furnace body (112).

4. A pulverized coal gasification furnace according to claim 1, characterized in that, A feed pipe (121) is provided on one side of the hopper (120).

5. A pulverized coal gasification furnace according to claim 1, characterized in that, The elastic card holder (130) includes a fixing plate (131), a plug rod (132) and a spring (133). The plug rod (132) is connected through one side of the fixing plate (131). One end of the spring (133) is fixedly connected to the fixing plate (131), and the other end of the spring (133) is fixedly connected to the plug rod (132).

6. A pulverized coal gasification furnace according to claim 5, characterized in that, The sieve plate (140) includes an arc plate (141), a circular frame (142), a perforated plate (143), and a connecting block (144). The circular frame (142) is fixedly connected to the arc plate (141), the perforated plate (143) is disposed inside the circular frame (142), and the connecting block (144) is fixedly connected to the arc plate (141).

7. A pulverized coal gasification furnace according to claim 6, characterized in that, The perforated plate (143) has a plurality of sieve holes (1431) on one side.

8. A pulverized coal gasification furnace according to claim 7, characterized in that, The connecting block (144) has a through hole (1441) on one side, and the insert rod (132) is slidably connected to the through hole (1441).

9. A pulverized coal gasification furnace according to claim 1, characterized in that, The dispersing rod (220) includes a rotating rod (221) and dispersing blades (222), and a plurality of dispersing blades (222) are provided on the surface of the rotating rod (221).

10. A pulverized coal gasification furnace according to claim 9, characterized in that, One end of the disintegrating blade (222) is provided with a fixing block (2221), and the fixing block (2221) is fixedly connected to the rotating rod (221).

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