A wear-resistant slag bin for coal gasification slag scooping machine

Abstract

The utility model relates to the technical field of coal gasification slag dredging, and in particular to a wear-resistant slag bin of a coal gasification slag dredging machine, comprising a slag bin main body for containing ash slag, and also comprising: a wear-resistant component connected to the bin wall of the slag bin main body, for reducing the impact of the ash slag on the bin wall of the slag bin main body; an air pressure module, for removing the ash slag attached to the bin wall of the slag bin main body by air pressure blowing. The utility model solves the problem that the slag slag in the existing slag bin often rubs against the bin wall during the operation of the slag dredging machine, and the bottom of the slag bin is easily blocked, thereby preventing the slag bin from being worn and blocked, greatly improving the service life of the slag bin, and reducing the labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gasification slag scooping, in particular to a wear-resistant slag bin of a coal gasification slag scooping machine. Background Art

[0002] The slag scraper used in the coal gasification system is an important link. When the slag scraper is in operation, it transfers the ash discharged from the gasification furnace to the slag truck. If the slag scraper cannot operate, the coal slag of the gasification furnace will not be discharged, affecting the operation of the coal gasification system and causing a reduction in production load.

[0003] Because the ash discharged from the gasifier has a high hardness and a high water content, the slag bin wall of the slag scoop machine is normally made of iron plates. The ash scoop machine often rubs against the bin wall when the slag scoop machine is running, causing the slag bin of the slag scoop machine to be worn through frequently. Production personnel can only be forced to manually clean the slag, which increases the labor intensity of on-site personnel. Because the ash discharged from the gasifier has a high water content, the ash scoop often freezes in the low temperature in winter, causing blockage at the bottom of the slag bin, bringing new hidden dangers to production stability.

[0004] For example, Chinese patent CN202924163U discloses a wear-resistant slag bin, which adopts a structure in which a grid formed by staggered longitudinal flat steel and transverse flat steel is arranged on the inner wall of the wear-resistant slag bin, so that the material can be partially filled into the grid during the flow process, so that the material itself can act as a wear-resistant material, so that the flowing material will not directly contact the bin wall, greatly extending the service life of the slag bin; however, when the material enters the grid, as the material runs, the impact force generated by the movement of the material will still be transmitted to the bin wall of the slag bin, and the material in the grid will also move, thereby causing friction between the slag bin and the material, resulting in wear and cracking of the bin wall.

[0005] Therefore, the utility model provides a wear-resistant slag bin of a coal gasification slag scooping machine. Utility Model Content

[0006] The purpose of the utility model is to propose a wear-resistant slag bin of a coal gasification slag scoop machine, which solves the problems of the existing slag bin that the ash slag often rubs against the bin wall during the operation of the slag scoop machine, and the bottom of the slag bin is easily blocked, thereby preventing the slag bin from being worn and blocked, greatly improving the service life of the slag bin and reducing the labor intensity of workers.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wear-resistant slag bin of a coal gasification slag scooping machine, comprising a slag bin main body for holding ash slag, and also comprising:

[0008] A wear-resistant component connected to the main wall of the slag bin and used to mitigate the impact of ash on the main wall of the slag bin;

[0009] The air pressure module is used to remove the ash and slag attached to the wall of the slag bin main body by blowing with air pressure.

[0010] Preferably, the wear-resistant component comprises:

[0011] A base plate layer, on which a groove is formed, connected to the main wall of the slag bin through bolts, and the bolt heads of the bolts are located in the grooves;

[0012] A buffer layer, connected to the substrate layer, for mitigating the impact force of the ash and slag impact;

[0013] The wear-resistant layer is connected to the buffer layer and is used to increase the wear resistance of the main wall of the slag bin.

[0014] Preferably, the substrate layer is a steel plate, the buffer layer is a rubber plate, and the wear-resistant layer is an alumina ceramic plate.

[0015] Preferably, the air pressure module is provided with a shut-off valve for controlling the flow or disconnection of gas.

[0016] Preferably, the slag bin main body comprises:

[0017] Silo, used for containing ash;

[0018] The lower hopper is connected to the bottom of the bin body and is in a cone shape.

[0019] Preferably, the lower hopper comprises:

[0020] Four side wall plates are connected to the bottom of the warehouse body, and the four side wall plates are arranged opposite to each other in pairs;

[0021] The end plate is connected to the side wall plate and forms a square structure with the side wall plate.

[0022] Beneficial effects of the utility model:

[0023] 1. The utility model reduces the friction between the ash and the slag bin by arranging a wear-resistant component and a pneumatic module on the slag bin. At the same time, the pneumatic module prevents the ash from clogging the bottom of the slag bin, thereby greatly improving the service life of the slag bin and reducing the labor intensity of workers.

[0024] 2. The utility model provides a three-layer structure on the wear-resistant component. Through the cooperation between the wear-resistant layer and the buffer layer, when the ash slag collides with the slag bin wall, the buffer layer reduces the impact force generated by the collision, and the wear-resistant layer prevents friction between the ash slag and the slag bin, thereby preventing the slag bin from being worn through and increasing the service life of the slag bin.

[0025] 3. The utility model provides a cut-off valve on the air pressure module to control the flow of gas through the cut-off valve, thereby cleaning the slag bin wall and preventing the attached ash and slag from accumulating at the bottom of the slag bin to cause blockage, thereby greatly reducing the labor intensity of workers in cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the whole of the utility model.

[0027] Figure 2 It is a schematic diagram of the wear-resistant component of the utility model.

[0028] In the figure: 1. slag bin body; 11. bin body; 12. lower hopper; 121. side wall plate; 122. end plate; 2. wear-resistant component; 21. base plate layer; 211. groove; 22. buffer layer; 23. wear-resistant layer; 24. bolt; 3. air pressure module; 31. cut-off valve. DETAILED DESCRIPTION

[0029] The following is a further description of the method of use of the present invention in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 and Figure 2 As shown, a wear-resistant slag bin of a coal gasification slag scooping machine includes a slag bin body 1 for containing ash and slag, and also includes:

[0031] A wear-resistant component 2, connected to the wall of the slag bin body 1, for alleviating the impact of ash on the wall of the slag bin body 1;

[0032] The air pressure module 3 is located at the bottom of the slag bin body 1 and is used to remove the ash and slag attached to the bin wall of the slag bin body 1 by blowing with air pressure.

[0033] The wear-resistant component 2 comprises:

[0034] The substrate layer 21 has a groove 211 formed thereon, and is connected to the wall of the slag bin body 1 via bolts 24, and the heads of the bolts 24 are located in the groove 211;

[0035] A buffer layer 22, connected to the substrate layer 21, for mitigating the impact of ash and slag;

[0036] The wear-resistant layer 23 is connected to the buffer layer 22 and is used to increase the wear resistance of the wall of the slag bin body 1 .

[0037] The substrate layer 21 is a steel plate, the bottom substrate is a 30 mm steel plate with grooves 211, the buffer layer 22 is a rubber plate, the middle buffer layer 22 is a 40 mm rubber plate, the wear-resistant layer 23 is an alumina ceramic plate, and the outermost layer is a 30 mm high-strength alumina ceramic plate.

[0038] A wear-resistant plate is installed on the inner wall of the slag bin, and a composite wear-resistant plate structure of alumina ceramic plate + rubber + steel plate is adopted. The Rockwell hardness of the alumina ceramic plate of the outermost layer of the wear-resistant component 2 is HRA80-90, which is second only to diamond and far exceeds the wear resistance of wear-resistant steel and stainless steel, and has a long service life. The middle layer rubber plate connects and fixes the outer ceramic plate and the base steel plate. At the same time, the rubber has good flexibility, which plays a role in reducing the impact of coal slag, reducing the vibration of the slag bin, and preventing the ceramic plate from breaking. The base steel plate has a groove 211, and the head of the bolt 24 is installed in the groove 211, which is convenient for installing the wear-resistant plate on the inner wall of the slag bin.

[0039] The air pressure module 3 is provided with a cut-off valve 31 for controlling the flow or disconnection of gas.

[0040] In order to prevent blockage in winter, a compressed air blowing system is set up, which can not only blow down the coal slag hanging on the wall of the slag bin, but also the operator can remotely control the amount and time of blowing to clear the blockage.

[0041] The valve is set by the system to open for 10 seconds every 30 minutes, and 0.7MPa compressed air is used to blow the bottom of the slag bin to blow off the coal slag stuck to the bin wall.

[0042] The slag bin body 1 comprises:

[0043] The silo 11 is used for containing ash and slag;

[0044] The lower hopper 12 is connected to the bottom of the bin body 11 and is in a cone shape to ensure that the ash and slag can fall better.

[0045] The lower hopper 12 comprises:

[0046] Four side wall plates 121 are connected to the bottom of the warehouse body 11, and the four side wall plates 121 are arranged opposite to each other in pairs;

[0047] The end plate 122 is connected to the side wall plate 121 , and forms a square structure with the side wall plate 121 .

[0048] Working process: When the ash slag is running in the slag scoop machine, since the wear-resistant component 2 is provided on the wall of the slag bin main body 1, the wear-resistant layer 23 on the wear-resistant component 2 prevents the ash slag from causing wear to the wall of the slag bin main body 1, and the impact force generated by the ash slag hitting the wear-resistant layer 23 is buffered by the rubber plate on the buffer layer 22, thereby reducing more impact force transmitted to the wall of the slag bin main body 1 and preventing the slag bin main body 1 from being damaged by storage friction.

[0049] Under the action of the control unit, the air pressure module 3 at the bottom of the slag bin main body 1 controls the valve to open for 10S every 30 minutes through the automatic shut-off valve 31, and makes the compressed gas pressure 0.7MPa, so as to clean the accumulated slag on the bin wall of the slag bin main body 1, thereby preventing the slag bin main body 1 from being blocked.

[0050] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant slag bin of a coal gasification slag scooping machine, comprising a slag bin body (1) for containing ash slag, characterized in that: Also includes: A wear-resistant component (2) connected to the wall of the slag bin body (1) and used to mitigate the impact of ash on the wall of the slag bin body (1); The air pressure module (3) is used to remove the ash and slag attached to the wall of the slag bin main body (1) by blowing with air pressure.

2. The wear-resistant slag bin of a coal gasification slag remover according to claim 1, characterized in that: The wear-resistant component (2) comprises: A base plate layer (21) having a groove (211) formed thereon and connected to the wall of the slag bin body (1) via bolts (24), with the bolt (24) head of the bolt (24) being located in the groove (211); A buffer layer (22), connected to the substrate layer (21), for mitigating the impact force of ash and slag impact; The wear-resistant layer (23) is connected to the buffer layer (22) and is used to increase the wear resistance of the wall of the slag bin body (1).

3. The wear-resistant slag bin of a coal gasification slag remover according to claim 2, characterized in that: The substrate layer (21) is a steel plate, the buffer layer (22) is a rubber plate, and the wear-resistant layer (23) is an alumina ceramic plate.

4. The wear-resistant slag bin of a coal gasification slag remover according to claim 1, characterized in that: The air pressure module (3) is provided with a cut-off valve (31) for controlling the flow or disconnection of gas.

5. The wear-resistant slag bin of a coal gasification slag remover according to claim 1, characterized in that: The slag bin body (1) comprises: A silo (11) for containing ash and slag; The lower hopper (12) is connected to the bottom of the bin body (11), and the lower hopper (12) is in a cone shape.

6. The wear-resistant slag bin of a coal gasification slag remover according to claim 5, characterized in that: The lower hopper (12) comprises: Four side wall plates (121) are connected to the bottom of the warehouse body (11), and the four side wall plates (121) are arranged in pairs facing each other; The end plate (122) is connected to the side wall plate (121), and forms a square structure with the side wall plate (121).

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