Pulverized coal gasifier with coal storage device

Abstract

The utility model discloses a pulverized coal gasification furnace with a coal storage device, which comprises a gasification furnace body, a mounting plate is arranged on the side wall of the gasification furnace body, a coal storage tank is arranged on the mounting plate, and the pulverized coal gasification furnace further comprises a feed conveying mechanism and a crushing and stirring mechanism which are arranged on the coal storage tank; the feeding conveying mechanism comprises a discharging pipe and a conveying pipe, the discharging pipe is arranged on the bottom wall of the coal storage tank, the conveying pipe is connected to the tail end of the discharging pipe, the tail end of the conveying pipe is arranged in the gasifier body in a penetrating mode and provided with a discharging opening, and a feeding assembly is arranged in the conveying pipe. The utility model belongs to the technical field of pulverized coal gasification furnaces, and particularly relates to a pulverized coal gasification furnace with a coal storage device.

Description

Technical Field

[0001] This utility model belongs to the technical field of pulverized coal gasification furnaces, specifically referring to a pulverized coal gasification furnace with a coal storage device. Background Technology

[0002] Pulverized coal gasification is a method that uses dry pulverized coal as raw material and pure oxygen, steam or air as gasifying agent to gasify the dry pulverized coal under normal pressure, pressurized pressure or slightly positive pressure. The gasification products mainly include syngas such as CO, H2 and CH4. This method can improve energy conversion efficiency and reduce environmental pollution. However, a pulverized coal gasifier is required in this process.

[0003] Most existing pulverized coal gasifiers are equipped with coal storage devices. However, during use, pulverized coal is prone to clumping due to moisture or other reasons, and blockages can easily occur during the coal feeding process. This results in a lack of pulverized coal during the normal operation of the pulverized coal gasifier, which can easily cause gas leakage. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing equipment is prone to blockage during the coal feeding process, which is detrimental to the normal operation of the gasifier.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a pulverized coal gasifier with a coal storage device includes a gasifier body, an installation plate on the side wall of the gasifier body, a coal storage tank on the installation plate, and a feeding and conveying mechanism and a crushing and stirring mechanism installed on the coal storage tank; the feeding and conveying mechanism includes a discharge pipe and a conveying pipe, the discharge pipe is located on the bottom wall of the coal storage tank, the conveying pipe is connected to the end of the discharge pipe, the end of the conveying pipe passes through the gasifier body and is provided with a discharge port, and a feeding assembly is provided inside the conveying pipe.

[0006] Furthermore, the feeding assembly includes a drive shaft and auger blades, the drive shaft being rotatably disposed inside the conveying pipe, and the auger blades being disposed on the drive shaft.

[0007] Furthermore, a motor is axially connected to the drive shaft, and the motor is fixedly installed on the side wall of one end of the conveying pipe.

[0008] Furthermore, an electric push rod is installed on the conveying pipe, and a striking block is provided at the end of the electric push rod, with the striking block positioned close to the discharge pipe.

[0009] Furthermore, the crushing and agitating mechanism includes a stirring shaft and a second motor. The stirring shaft is rotatably mounted on the top wall of the coal storage tank, and a stirring paddle is mounted on the stirring shaft. The second motor is mounted on the top wall of the coal storage tank, and the output end of the second motor is connected to the stirring shaft.

[0010] Preferably, the striking block is made of rubber.

[0011] The beneficial effects of the above-mentioned structure are as follows: The coal powder gasification furnace with a coal storage device provided by this utility model can break up the clumps of coal powder by setting a stirring shaft and a stirring paddle. With the help of the drive shaft and auger blades, it can avoid clogging of the feeding. At the same time, by setting an electric push rod and a striking block, it can knock and vibrate the discharge pipe, which can effectively avoid the clogging of the discharge pipe and further ensure the continuous and stable feeding. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of a pulverized coal gasification furnace with a coal storage device proposed in this utility model;

[0013] Figure 2 This is a cross-sectional view of a pulverized coal gasification furnace with a coal storage device proposed in this utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0015] The components include: 1. Gasifier body; 2. Mounting plate; 3. Coal storage tank; 4. Feeding and conveying mechanism; 5. Crushing and agitating mechanism; 6. Discharge pipe; 7. Conveying pipe; 8. Drop port; 9. Feeding assembly; 10. Drive shaft; 11. Screwdriver blade; 12. Motor 1; 13. Electric push rod; 14. Striking block; 15. Stirring shaft; 16. Motor 2; 17. Stirring paddle. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-3 As shown, the present invention proposes a coal pulverized gasifier with a coal storage device, including a gasifier body 1, an mounting plate 2 on the side wall of the gasifier body 1, a coal storage tank 3 on the mounting plate 2, and a feeding and conveying mechanism 4 and a crushing and agitating mechanism 5 installed on the coal storage tank 3. The feeding and conveying mechanism 4 includes a discharge pipe 6 and a conveying pipe 7. The discharge pipe 6 is located on the bottom wall of the coal storage tank 3, and the conveying pipe 7 is connected to the end of the discharge pipe 6. The end of the conveying pipe 7 passes through the gasifier body 1 and is provided with a discharge port 8. A feeding component 9 is provided inside the conveying pipe 7. The coal pulverized raw material is poured into the coal storage tank 3 through the feed port. The crushing and agitating mechanism 5 is activated to crush the agglomerated coal pulverized material. The feeding component 9 is activated to convey the coal pulverized material into the gasifier body 1, thereby realizing coal storage and feeding.

[0019] like Figure 2 and 3 As shown, the feeding assembly 9 includes a drive shaft 10 and an auger blade 11. The drive shaft 10 is rotatably mounted inside the conveying pipe 7. A motor 12 is shaft-connected to the drive shaft 10. The motor 12 is fixedly installed on the side wall of one end of the conveying pipe 7. The auger blade 11 is mounted on the drive shaft 10. When the motor 12 is started, the drive shaft 10 is driven to rotate. The drive shaft 10 drives the auger blade 11 to rotate. The auger blade 11 pushes the coal powder falling from the discharge pipe 6 to the discharge port 8 and into the gasifier body 1, thus realizing feeding.

[0020] like Figure 3 As shown, an electric push rod 13 is installed on the conveying pipe 7. The end of the electric push rod 13 is provided with a striking block 14. The striking block 14 is made of rubber and is located close to the discharge pipe 6. During the feeding process, the electric push rod 13 is activated to push the striking block 14 to move back and forth. The striking block 14 is used to strike and vibrate the discharge pipe 6 to prevent coal powder from clogging the discharge pipe 6.

[0021] like Figure 2 As shown, the crushing and agitating mechanism 5 includes a stirring shaft 15 and a second motor 16. The stirring shaft 15 is rotatably mounted on the top wall of the coal storage tank 3. A stirring paddle 17 is mounted on the stirring shaft 15. The second motor 16 is mounted on the top wall of the coal storage tank 3. The output end of the second motor 16 is connected to the stirring shaft 15. When the second motor 16 is started, it drives the stirring shaft 15 to rotate. The stirring shaft 15 drives the stirring paddle 17 to rotate. The movement of the stirring paddle 17 is used to crush the clumps of coal powder.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pulverized coal gasifier with a coal storage device, comprising a gasifier body, an mounting plate on the side wall of the gasifier body, and a coal storage tank on the mounting plate, characterized in that: It also includes a feeding and conveying mechanism and a crushing and agitating mechanism installed on the coal storage tank; the feeding and conveying mechanism includes a discharge pipe and a conveying pipe, the discharge pipe is located on the bottom wall of the coal storage tank, the conveying pipe is connected to the end of the discharge pipe, the end of the conveying pipe passes through the gasifier body and is provided with a discharge port, and a feeding component is provided inside the conveying pipe.

2. A pulverized coal gasification furnace with a coal storage device according to claim 1, characterized in that: The feeding assembly includes a drive shaft and auger blades. The drive shaft is rotatably disposed inside the conveying pipe, and the auger blades are disposed on the drive shaft.

3. A pulverized coal gasification furnace with a coal storage device according to claim 2, characterized in that: A motor is mounted on the drive shaft, and the motor is fixedly installed on the side wall of one end of the conveying pipe.

4. A pulverized coal gasification furnace with a coal storage device according to claim 3, characterized in that: An electric push rod is installed on the conveying pipe, and a striking block is provided at the end of the electric push rod. The striking block is located near the discharge pipe.

5. A pulverized coal gasification furnace with a coal storage device according to claim 4, characterized in that: The crushing and agitating mechanism includes a stirring shaft and a second motor. The stirring shaft is rotatably mounted on the top wall of the coal storage tank, and a stirring paddle is mounted on the stirring shaft. The second motor is mounted on the top wall of the coal storage tank, and the output end of the second motor is connected to the stirring shaft.

6. A pulverized coal gasification furnace with a coal storage device according to claim 5, characterized in that: The striking block is made of rubber.

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