Slag grinding equipment for waste incineration power plant

Abstract

The utility model discloses slag grinding equipment for a waste incineration power plant, and relates to the technical field of power plant slag grinding, the slag grinding equipment for the waste incineration power plant comprises a grinding box, the upper end of the grinding box is provided with a feeding end, and the lower end of the grinding box is provided with a discharging end; an upper protective cover is arranged at the upper end of the feeding end, a movable opening is formed in the side surface of the feeding end and transversely penetrates through the feeding end, a stress plate is arranged in the movable opening, an air cylinder is arranged in the upper protective cover, and the top end of the air cylinder is fixed to an external screw on the inner wall of the upper protective cover. According to the scheme, the problems that when slag of an existing waste incineration power plant is ground, multi-pass grinding is usually conducted through multiple sets of pressing rollers, the number of the pressing rollers is large, a large amount of energy needs to be consumed, and consequently resource waste is serious, and noise is large are solved.

Description

Technical Field

[0001] This utility model relates to the field of power plant slag grinding technology, specifically a slag grinding device for waste incineration power plants. Background Technology

[0002] The slag from waste-to-energy plants refers to the solid waste generated during the waste incineration process. This slag mainly consists of the residue left after solid waste is burned at high temperatures in the incinerator. It can be easily recycled by grinding and crushing.

[0003] For example, the Chinese authorized patent CN220657696U (A Slag Crusher for Waste-to-Energy Plants) includes a feed hopper, a first crushing chamber fixedly connected to the bottom of the feed hopper, a second crushing chamber located below the first crushing chamber, a connecting channel fixedly connected between the first and second crushing chambers, discharge ports at the bottom of both the first and second crushing chambers, a guide plate fixedly connected to the bottom of the first crushing chamber, a screen located below the guide plate, a first guide plate fixedly connected to one side of the connecting channel, and a second guide plate fixedly connected to the bottom of the second crushing chamber. This slag crusher for waste-to-energy plants, through the cooperation of the first and second crushing chambers, the connecting channel, and the screen, can perform secondary crushing of substandard slag, making the slag crushing more uniform and ensuring the quality of the crushed slag.

[0004] However, existing waste-to-energy plants typically use multiple sets of pressure rollers for grinding slag during the grinding process. This results in a large number of pressure rollers, high energy consumption, significant resource waste, and high noise levels. Therefore, this method does not meet current requirements. To address this, we propose a slag grinding device for waste-to-energy plants. Utility Model Content

[0005] The purpose of this utility model is to provide a slag grinding device for waste incineration power plants, in order to solve the problem mentioned in the background art that the slag of existing waste incineration power plants is usually ground through multiple sets of pressure rollers in multiple stages, which results in a large number of pressure rollers, high energy consumption, and serious resource waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a slag grinding device for a waste incineration power plant, comprising: a grinding box, a feeding end provided at the upper end of the grinding box, a discharging end provided at the lower end of the grinding box, an upper protective cover provided at the upper end of the feeding end, a movable opening provided on the side surface of the feeding end, the movable opening extending laterally through the feeding end, a force-bearing plate provided inside the movable opening, a cylinder provided inside the upper protective cover, and the top end of the cylinder being fixed to the inner wall of the upper protective cover by external screws, the movable end of the cylinder driving the lower pressure plate to move up and down.

[0007] Preferably, an electric push rod is provided on one side of the feeding end, and a telescopic rod is provided on the other side of the feeding end. A connecting plate is provided at one end of both the electric push rod and the telescopic rod, and one end of both the electric push rod and the telescopic rod is fixed to the force plate by external bolts of the connecting plate.

[0008] Preferably, both the electric push rod and the telescopic rod are provided with a fixing sleeve on the outside, and both the electric push rod and the telescopic rod are fixed to the feed end by external screws of the fixing sleeve.

[0009] Preferably, the lower surface of the pressure plate is provided with crushing teeth, and there are a plurality of crushing teeth arranged in a matrix.

[0010] Preferably, a fixing plate is provided on both sides of the upper protective cover, and the two ends of the fixing plate are fixed to the upper protective cover and the feed end respectively by fixing bolts.

[0011] Preferably, the grinding box is equipped with pressure rollers inside, and there are two pressure rollers. The grinding box is supported by a support frame, and the pressure rollers are rotatably connected to the support frame via roller shafts.

[0012] Preferably, the lower surface of the discharge end is provided with a discharge port, and the side surface of the inlet end is provided with a feed port.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features a protective cover at the top of the feed end, inside which are a cylinder and a lower pressure plate. The lower surface of the lower pressure plate has several crushing teeth, and a force plate that moves along a movable opening is located inside the feed end. The slag is supported by the force plate, and the cylinder drives the lower pressure plate downwards. The crushing teeth squeeze and crush the slag, turning large slag pieces into smaller ones, thus achieving uniform slag size. Then, an electric push rod drives the force plate to move outwards along the movable opening. After losing the support of the force plate, the slag falls into the grinding chamber, where two pressure rollers rotate to grind it. At this point, the ground slag is basically uniform in size, rather than varying in size, thus improving the grinding effect and eliminating the need for secondary grinding. Compared to existing methods that use multiple sets of pressure rollers, the use of a cylinder and an electric push rod reduces energy consumption and solves the problems of multiple sets of pressure rollers used in existing waste incineration power plants for grinding slag, which results in a large number of rollers, high energy consumption, serious resource waste, and high noise levels.

[0015] 2. By installing a telescopic rod on one side of the feed end, the telescopic rod consists of a positioning sleeve and a moving rod. The moving rod moves along the positioning sleeve. When the electric push rod drives the force plate to move outward along the moving opening of the feed end, the telescopic rod moves in and out, which stabilizes the force plate, prevents one end of the force plate from shaking, and also prevents the electric push rod from being damaged by force, thus improving its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model after removing the upper protective cover;

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional equiaxed structure of this utility model;

[0019] Figure 4 This is a bottom view of the internal structure of the upper protective cover of this utility model;

[0020] In the diagram: 1. Grinding box; 2. Feeding end; 3. Discharge end; 4. Support frame; 5. Upper protective cover; 6. Fixing plate; 7. Feed inlet; 8. Electric push rod; 9. Force plate; 10. Telescopic rod; 11. Connecting plate; 12. Moving opening; 13. Fixing sleeve; 14. Cylinder; 15. Lower pressure plate; 16. Discharge outlet; 17. Pressure roller; 18. Crushing teeth; 19. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a slag grinding device for a waste incineration power plant, comprising: a grinding box 1, a feeding end 2 at the upper end of the grinding box 1, a discharging end 3 at the lower end of the grinding box 1, an upper protective cover 5 at the upper end of the feeding end 2, a movable opening 12 on the side surface of the feeding end 2, the movable opening 12 extending laterally through the feeding end 2, a force-bearing plate 9 inside the movable opening 12, and a cylinder 14 inside the upper protective cover 5, the top end of the cylinder 14 being fixed to the inner wall of the upper protective cover 5 with screws. The moving end of 4 drives the lower pressure plate 15 to move up and down. An electric push rod 8 is provided on one side of the feeding end 2, and a telescopic rod 10 is provided on the other side of the feeding end 2. A connecting plate 11 is provided at one end of the electric push rod 8 and the telescopic rod 10, and the one end of the electric push rod 8 and the telescopic rod 10 are fixed to the force plate 9 by external bolts of the connecting plate 11. A crushing tooth 18 is provided on the lower surface of the lower pressure plate 15, and there are several crushing teeth 18 arranged in a matrix. An outlet 16 is provided on the lower surface of the discharge end 3, and an inlet 7 is provided on the side surface of the feeding end 2.

[0023] The cylinder 14 drives the lower pressure plate 15 to press down, and the slag is crushed by several crushing teeth 18, so that the large slag is turned into small ones, thus making the slag uniform in size. Then, the electric push rod 8 drives the force plate 9 to move along the moving opening 12 to the outside of the feed end 2. After the slag loses the support of the force plate 9, it will fall into the grinding box 1. The two pressure rollers 17 rotate to grind the slag. At this time, the ground slag is basically uniform in size, instead of varying sizes, thus improving the grinding effect. Secondary grinding is not required, and multiple sets of pressure rollers 17 are not needed, thus reducing energy consumption.

[0024] Please see Figure 1 Both the electric push rod 8 and the telescopic rod 10 are provided with a fixing sleeve 13 on the outside. The electric push rod 8 and the telescopic rod 10 are fixed to the feed end 2 by the external screws of the fixing sleeve 13. When the electric push rod 8 drives the force plate 9 to move outward along the moving opening 12 to the feed end 2, the telescopic rod 10 moves in and out, which has a stabilizing effect on the force plate 9.

[0025] Please see Figure 1 The upper protective cover 5 is provided with fixing plates 6 on both sides. The two ends of the fixing plates 6 are fixed to the upper protective cover 5 and the feed end 2 respectively by fixing bolts 19, so as to fix the upper protective cover 5 and the feed end 2.

[0026] Please see Figure 1 , 3The grinding box 1 is equipped with two pressure rollers 17. The grinding box 1 is supported by a support frame 4. The pressure rollers 17 are rotatably connected to the support frame 4 through roller shafts. The two pressure rollers 17 are driven to rotate by a motor (not shown in the figure) to grind the slag. This is the prior art.

[0027] Working principle: During use, the two ends of the fixing plate 6 are fixed to the upper protective cover 5 and the feeding end 2 respectively by fixing bolts 19, thus fixing the upper protective cover 5 and the feeding end 2. The slag to be ground from the waste incineration power plant is poured into the feeding end 2 from the feeding port 7, located above the force plate 9. The cylinder 14 drives the lower pressure plate 15 to press down, and the slag is squeezed and crushed by several crushing teeth 18, so that the large slag is turned into small ones, thus making the slag uniform in size. Then, the electric push rod 8 drives the force plate 9 to move out of the feeding end 2 along the moving opening 12. After the slag loses the support of the force plate 9, it will fall into the grinding box 1. The motor (not shown in the figure) drives the two pressure rollers 17 to rotate, thus grinding the slag. This is the existing technology. At this time, the ground slag is basically uniform in size, instead of varying sizes, thus improving the grinding effect. Secondary grinding is not required, and multiple sets of pressure rollers 17 are not needed, reducing energy consumption. The ground slag is discharged from the discharge port 16.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A slag grinding device for a waste incineration power plant, comprising a grinding box (1), characterized in that: The upper end of the grinding box (1) is provided with a feeding end (2), the lower end of the grinding box (1) is provided with a discharging end (3), the upper end of the feeding end (2) is provided with an upper protective cover (5), the side surface of the feeding end (2) is provided with a movable opening (12), and the movable opening (12) extends horizontally through the feeding end (2). The inside of the movable opening (12) is provided with a force plate (9), and the inside of the upper protective cover (5) is provided with a cylinder (14), and the top of the cylinder (14) is fixed to the outer screw of the inner wall of the upper protective cover (5). The movable end of the cylinder (14) drives the lower pressure plate (15) to move up and down.

2. The slag grinding equipment for waste incineration power plants according to claim 1, characterized in that: An electric push rod (8) is provided on one side of the feed end (2), and a telescopic rod (10) is provided on the other side of the feed end (2). A connecting plate (11) is provided at one end of both the electric push rod (8) and the telescopic rod (10), and one end of both the electric push rod (8) and the telescopic rod (10) is fixed to the force plate (9) by external bolts of the connecting plate (11).

3. The slag grinding equipment for waste incineration power plants according to claim 2, characterized in that: Both the electric push rod (8) and the telescopic rod (10) are provided with a fixing sleeve (13), and the electric push rod (8) and the telescopic rod (10) are fixed to the feed end (2) by the external screws of the fixing sleeve (13).

4. The slag grinding equipment for waste incineration power plants according to claim 1, characterized in that: The lower surface of the pressure plate (15) is provided with crushing teeth (18), and there are several crushing teeth (18) arranged in a matrix.

5. The slag grinding equipment for waste incineration power plants according to claim 1, characterized in that: The upper protective cover (5) is provided with fixing plates (6) on both sides. The two ends of the fixing plates (6) are fixed to the upper protective cover (5) and the feed end (2) respectively by fixing bolts (19).

6. The slag grinding equipment for waste incineration power plants according to claim 1, characterized in that: The grinding box (1) is equipped with pressure rollers (17), and there are two pressure rollers (17). The grinding box (1) is supported by a support frame (4), and the pressure rollers (17) are rotatably connected to the support frame (4) through roller shafts.

7. The slag grinding equipment for waste incineration power plants according to claim 1, characterized in that: The lower surface of the discharge end (3) is provided with a discharge port (16), and the side surface of the feed end (2) is provided with a feed port (7).

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