Crushing, screening and grading device for coal-fired slag

Abstract

The utility model relates to the technical field of slag smashing and screening, in particular to a coal-fired slag smashing, screening and grading device which comprises a smashing box, two sets of smashing rollers are arranged in the smashing box, and a conveying pipe is arranged below the smashing box. Carrier rollers are arranged at the two ends of the rotary screen, a discharging frame is arranged below the rotary screen, and a scrubbing brush is installed on one side of the rotary screen. The coal-fired furnace slag crushing device has the beneficial effects that coal-fired furnace slag can be put into the crushing box, the crushing rollers in the crushing box can crush the furnace slag, then the furnace slag is conveyed into the drum screen through the conveying pipe, the furnace slag rotates under the action of the carrier rollers at the two ends of the drum screen, and therefore the furnace slag in the drum screen is screened; and slag clamped in the screen holes of the drum screen can be cleaned, so that the problem that the screening efficiency is affected due to the fact that the screen holes are blocked when the slag is screened is solved.

Description

Technical Field

[0001] This utility model relates to the field of slag crushing and screening technology, specifically a coal-fired slag crushing, screening and grading device. Background Technology

[0002] Coal ash crushing and screening equipment plays an important role in industrial production. First, from the perspective of resource recovery, this equipment can effectively process the coal ash after combustion, crushing it into smaller particles and screening them according to size, thus facilitating further utilization, such as as building materials or road paving materials. This realizes the resource reuse of waste and reduces the demand for the extraction of natural resources. Therefore, coal ash crushing and screening equipment not only promotes the development of the circular economy, but also has great significance for improving the quality of the ecological environment.

[0003] In the existing technology, traditional coal-fired furnace slag crushing and screening devices mainly consist of a feed inlet, a crusher, a vibrating screen, a conveyor belt, and a discharge outlet, which are used to realize the crushing and grading of furnace slag.

[0004] However, traditional coal slag crushing and screening devices cause screen holes to become clogged during long-term screening, requiring regular cleaning by staff, which is detrimental to the screening efficiency of coal slag. Therefore, this utility model proposes a coal slag crushing, screening and grading device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a coal-fired furnace slag crushing, screening and grading device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal-fired furnace slag crushing, screening and grading device, the coal-fired furnace slag crushing, screening and grading device comprising: a crushing box, two sets of crushing rollers arranged inside the crushing box, and a conveying pipe arranged below the crushing box;

[0007] The drum screen has rollers at both ends, a discharge frame at the bottom, and a hard brush on one side.

[0008] Preferably, the crushing box is equipped with two sets of crushing rollers, a motor is installed on the side of the crushing box, and a support plate is installed at the bottom of the crushing box.

[0009] Preferably, the drum screen has a downwardly inclined cylindrical structure. A primary screening tube is provided inside the drum screen. The primary screening tube is fixedly installed on the inner wall of the drum screen by a fixing plate. One end of the primary screening tube is connected to one end of the conveying pipe, and the other end of the primary screening tube is provided with a discharge plate.

[0010] Preferably, the idler rollers are provided in four sets installed on both sides of the drum screen. Idler rollers on the same side are connected by connecting rods. Limit frames are provided at both ends of the primary screening tube, and the idler rollers are locked in the limit frames. A motor is provided at one end of the idler rollers.

[0011] Preferably, the discharge frame is located below the drum screen, with both ends of the discharge frame fixedly installed on the inner wall of the support frame. A fixing block is provided at the upper end of the support frame, and a motor is fixedly installed above the fixing block. A connecting block is provided on the upper surface of the support frame away from the crushing box, and a discharge plate is fixedly installed on the surface of the connecting block.

[0012] Preferably, the hard bristle brush has mounting blocks at both ends, allowing the hard bristle brush to rotate freely between the mounting blocks, which are fixedly mounted on the inner wall of one side of the support frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention discloses a coal-fired furnace slag crushing, screening, and grading device. In use, the coal-fired furnace slag is placed in a crushing box, where the crushing rollers crush the slag. The slag is then conveyed to a drum screen through a conveying pipe. Under the action of the rollers at both ends of the drum screen, the slag is rotated, thereby screening the slag inside the drum screen. Furthermore, a hard brush is installed on one side of the drum screen to clean the slag stuck in the screen holes. This avoids the problem of screen hole blockage affecting screening efficiency during slag screening. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structural support structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of the rotary drum screen of this utility model.

[0020] In the diagram: 1. Crushing box; 2. Crushing roller; 3. Conveying pipe; 4. Drum screen; 5. Motor; 6. Idler roller; 7. Discharge frame; 8. Hard brush; 9. Primary screening pipe; 10. Fixing plate; 11. Connecting rod; 12. Limiting frame; 13. Support frame; 14. Fixing block; 15. Discharge plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit 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.

[0022] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," 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 "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0025] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a coal-fired furnace slag crushing, screening and grading device, the coal-fired furnace slag crushing, screening and grading device includes: a crushing box 1, two sets of crushing rollers 2 are arranged in the crushing box 1, and a conveying pipe 3 is arranged below the crushing box 1;

[0026] Rotary drum screen 4, with rollers 6 at both ends, a discharge frame 7 at the bottom, and a hard brush 8 installed on one side of the rotary drum screen 4.

[0027] In use, coal-fired slag can be placed into the crushing box 1. The crushing roller 2 in the crushing box 1 will crush the slag and then convey it to the drum screen 4 through the conveying pipe 3. The drum screen 4 rotates under the action of the rollers 6 at both ends, thereby screening the slag in the drum screen 4. In addition, a hard brush 8 is installed on one side of the drum screen 4 to clean the slag stuck in the screen holes of the drum screen 4. This avoids the problem of screen hole blockage affecting screening efficiency when screening slag.

[0028] Example 2: Based on Example 1, a stiff brush 8 is provided to prevent surface screen blockage. Mounting blocks are provided at both ends of the stiff brush 8, allowing it to rotate freely between the mounting blocks. The mounting blocks are fixedly installed on the inner wall of one side of the support frame 13. The discharge frame 7 is located below the drum screen 4, with both ends fixedly installed on the inner wall of the support frame 13. A fixing block 14 is provided at the upper end of the support frame 13, and a motor 5 is fixedly installed above the fixing block 14. A connecting block is provided on the upper surface of the end of the support frame 13 away from the crushing box 1, and a discharge plate 15 is fixedly installed on the surface of the connecting block. The drum screen 4 and the primary screening pipe 9 will screen the coal slag. The screened coal slag will be discharged through the discharge frame 7 and the discharge plate 15. The stiff brush 8 on one side of the drum screen 4 will rotate with the rotation of the drum screen 4, and the bristles of the stiff brush 8 can clean the screen holes, thereby preventing screen blockage from affecting screening efficiency.

[0029] Example 3: Based on Example 2, a drum screen 4 is provided to facilitate the operation of the overall device. The drum screen 4 has a downwardly inclined cylindrical structure. A primary screening tube 9 is provided inside the drum screen 4. The primary screening tube 9 is fixedly installed on the inner wall of the drum screen 4 by a fixing plate 10. One end of the primary screening tube 9 is connected to one end of the conveying pipe 3, and the other end of the primary screening tube 9 is provided with a discharge plate 15. Four sets of idler rollers 6 are provided on both sides of the drum screen 4. Idler rollers 6 on the same side are connected by a connecting rod 11. Limit frames 12 are provided at both ends of the primary screening tube 9, and the idler rollers 6 are locked in the limit frames 12. A motor 5 is provided at one end of the idler rollers 6. When the device is performing screening operation, only the rotation speed of the idler rollers 6 needs to be adjusted to adjust the rotation speed of the drum screen 4, which is simple and easy to operate.

[0030] The crushing box 1 is equipped with two sets of crushing rollers 2, a motor 5 is installed on the side of the crushing box 1, and a support plate is installed at the bottom of the crushing box 1. When crushing, the operator only needs to pour the coal slag into the crushing box 1. The crushed coal slag is then transported to the drum screen 4 for screening by the conveying pipe 3, so that the whole crushing and screening process is simple and easy to operate.

[0031] Working principle: In actual use, coal-fired slag can be put into the crushing box 1. The crushing roller 2 in the crushing box 1 will crush the slag and then convey it to the drum screen 4 through the conveying pipe 3. Under the action of the rollers 6 at both ends of the drum screen 4, it rotates, thereby screening the slag in the drum screen 4. In addition, a hard brush 8 is installed on one side of the drum screen 4 to clean the slag stuck in the screen holes of the drum screen 4. This avoids the problem of screen hole blockage affecting screening efficiency when screening slag.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal-fired furnace slag crushing, screening, and grading device, characterized in that: The coal-fired furnace slag crushing, screening and grading device includes: a crushing box (1), two sets of crushing rollers (2) are installed inside the crushing box (1), and a conveying pipe (3) is installed below the crushing box (1); A drum screen (4) is provided with rollers (6) at both ends, a discharge frame (7) is provided below the drum screen (4), and a hard brush (8) is installed on one side of the drum screen (4).

2. The coal-fired furnace slag crushing, screening, and grading device according to claim 1, characterized in that: The crushing box (1) is equipped with two sets of crushing rollers (2), a motor (5) is provided on the side of the crushing box (1), and a support plate is provided at the bottom of the crushing box (1).

3. The coal-fired furnace slag crushing, screening, and grading device according to claim 1, characterized in that: The drum screen (4) is a downward inclined cylindrical structure. A primary screening tube (9) is provided inside the drum screen (4). The primary screening tube (9) is fixedly installed on the inner wall of the drum screen (4) by a fixing plate (10). One end of the primary screening tube (9) is connected to one end of the conveying pipe (3), and the other end of the primary screening tube (9) is provided with a discharge plate (15).

4. The coal-fired furnace slag crushing, screening, and grading device according to claim 1, characterized in that: The idler roller (6) is provided with four sets installed on both sides of the drum screen (4). The idler rollers (6) on the same side are connected by connecting rods (11). Limit frames (12) are provided at both ends of the primary screening tube (9). The idler roller (6) is locked in the limit frame (12). A motor (5) is provided at one end of the idler roller (6).

5. The coal-fired furnace slag crushing, screening, and grading device according to claim 1, characterized in that: The discharge frame (7) is located below the drum screen (4). Both ends of the discharge frame (7) are fixedly installed on the inner wall of the support frame (13). A fixing block (14) is provided on the upper end of the support frame (13). A motor (5) is fixedly installed on the upper part of the fixing block (14). A connecting block is provided on the upper surface of the support frame (13) away from the crushing box (1). A discharge plate (15) is fixedly installed on the surface of the connecting block.

6. The coal-fired furnace slag crushing, screening, and grading device according to claim 1, characterized in that: The hard brush (8) has mounting blocks at both ends, and the hard brush (8) can rotate freely between the mounting blocks. The mounting blocks are fixedly installed on the inner wall of one side of the support frame (13).

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