Solid waste-cement grinding device

Abstract

The utility model relates to cement production equipment technical field discloses a kind of solid waste cement grinding device in cooperation, including protective cylinder, support, screening grinding assembly, feeding assembly, transmission assembly and discharge tank;The middle of protective cylinder is cylindrical, both ends are conical, fixed by support;Feeding assembly is composed of flow guide pipe, conveying pipe and hopper, for conveying the solid waste after crushing;Screening grinding assembly contains outer cylinder and inner cylinder, double cylinder is equipped with filter hole and outer cylinder aperture is greater than inner cylinder, inner cylinder is built-in steel slag grinding ball, fly ash grinding ball is placed between outer cylinder and inner cylinder, realizes solid waste screening and grinding cooperation;Transmission assembly is driven gear by motor, drives screening grinding assembly to rotate;Discharge tank is conical, and it is collected finished product below protective cylinder;Device structure is compact, convenient to operate, can efficiently complete the cooperative grinding of solid waste and cement, improve grinding efficiency, help solid waste resource utilization, applicable to solid waste cooperative treatment scene in cement production.

Description

Technical Field

[0001] This utility model relates to the technical field of cement production equipment, specifically to a solid waste co-processing cement grinding device. Background Technology

[0002] With the deepening of the concept of green and low-carbon development, the cement production industry has an increasingly urgent need for the resource utilization of industrial solid wastes such as steel slag and fly ash. As an auxiliary raw material for cement production, such solid wastes can reduce production costs and environmental emissions through co-grinding processes, which has become a key direction for the industry's transformation and upgrading.

[0003] A search revealed existing technology (application number: CN202120812503.4), which describes a "vertical mill device for solid waste cement raw materials." This utility model adopts a single-stage grinding mode of vertical mill and classifier, and only solves the problem of feed blockage by adding an anti-sticking structure. It does not involve the coordinated design of grading and screening and targeted grinding. In practical applications, this type of device has problems such as low grinding efficiency and poor uniformity of finished product particle size. Moreover, the single-stage grinding balls are difficult to adapt to the grinding needs of solid wastes with different particle sizes, which easily leads to local accumulation of materials and large residual amounts. At the same time, its adaptability to the coordinated treatment of multiple solid wastes is limited, making it difficult to meet the needs of industrial mass production for high efficiency, low consumption, and resource utilization.

[0004] Therefore, there is an urgent need for a solid waste co-processing cement grinding device that combines the functions of grading and screening with targeted grinding, high material flow efficiency, and wide adaptability. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a solid waste co-processing cement grinding device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a solid waste co-processing cement grinding device, comprising a protective cylinder, the middle of which is cylindrical and the two ends are conical. A support is provided at the bottom of the protective cylinder, and the upper ends of the support are respectively connected to the conical sidewalls at both ends of the protective cylinder by bolts. A screening and grinding assembly is provided inside the protective cylinder for screening and grinding solid waste. A feeding assembly is provided on one side of the protective cylinder for conveying the crushed solid waste into the interior of the screening and grinding assembly. A transmission assembly is provided on the side of the protective cylinder away from the feeding assembly for rotating the screening and grinding assembly. A discharge box is provided at the bottom of the cylindrical middle of the protective cylinder. The discharge box is conical, and the upper end of the discharge box is connected to the sidewall of the protective cylinder by bolts.

[0007] As a further description of the above technical solution:

[0008] The feeding assembly includes a guide pipe, which is conical. The larger diameter end of the guide pipe is rotatably connected to the middle position of the closed ring in the screening and grinding assembly. The smaller diameter end of the guide pipe passes through the rotating disk and is connected to one end of the conveying pipe. The end of the conveying pipe away from the guide pipe is connected to the lower end of the hopper.

[0009] As a further description of the above technical solution:

[0010] The screening and grinding assembly includes an outer cylinder and an inner cylinder inside the outer cylinder. Multiple filter holes are provided on the outer walls of the outer cylinder and the inner cylinder, and the filter holes in the outer cylinder are larger than the filter holes in the inner cylinder. The inner wall of the inner cylinder is connected to the outer wall of the conveying blades, and the outer walls at both ends of the outer cylinder are rotatably connected to the inner walls at both ends of the protective cylinder.

[0011] As a further description of the above technical solution:

[0012] The outer cylinder and the inner cylinder are provided with a closing ring at one end near the feeding assembly. There are two closing rings. One closing ring is connected to the inner wall of the outer cylinder and the outer wall of the inner cylinder respectively, and the outer wall of the other closing ring is connected to the inner wall of the inner cylinder.

[0013] As a further description of the above technical solution:

[0014] Two sets of closed rings are provided, and the other set of closed rings is located at the end of the outer cylinder and the inner cylinder away from the transmission component. Multiple connecting shafts are provided on the side walls of both ends of the outer cylinder and the inner cylinder, and one end of the connecting shaft is connected to the side wall of the outer cylinder and the inner cylinder.

[0015] As a further description of the above technical solution:

[0016] The end of the connecting shaft away from the outer cylinder and the inner cylinder is connected to the opposite side of the rotating disk. The inner cylinder is equipped with multiple steel slag grinding balls, and the outer cylinder is equipped with multiple fly ash grinding balls.

[0017] As a further description of the above technical solution:

[0018] The transmission assembly includes a motor, which is connected to one side of the bracket via a support plate. The output shaft of the motor is connected to the middle of the drive gear. The upper part of the drive gear meshes with the lower part of the driven gear. One side of the driven gear is connected to the side of the rotating disk away from the transmission shaft via a locating pin.

[0019] This utility model has the following beneficial effects:

[0020] I. The design adopts a double-cylinder grading and screening system with differentiated aperture settings for the outer and inner cylinders. Combined with the targeted grinding combination of steel slag grinding balls in the inner cylinder and fly ash grinding balls in the outer cylinder, it can specifically treat solid wastes of different particle sizes, significantly improving grinding efficiency and product uniformity. The inner cylinder conveying blades simultaneously realize material conveying and mixing, avoiding local accumulation. The conical structures at both ends of the protective cylinder and the conical discharge box form a guiding channel to guide the finished product to quickly converge and discharge, reduce material residue, and ensure continuous production.

[0021] Second, it can efficiently and collaboratively process various industrial solid wastes such as steel slag and fly ash, realize the deep integration of solid waste and cement production, improve the resource utilization rate of solid waste, reduce environmental pressure, and the device has a compact structure. It is stably fixed by the support frame and can be adapted to the spatial layout of cement production sites. Operation only requires controlling the feeding and motor start and stop. It is convenient to maintain, low in cost, and suitable for industrial batch production needs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the internal structure of the protective cylinder of this utility model;

[0024] Figure 3 This is an exploded sectional view of the structure of the screening and grinding assembly and the transmission assembly of this utility model;

[0025] Figure 4 This is an exploded sectional view of the feeding assembly structure of this utility model.

[0026] Legend:

[0027] 1. Protective cylinder; 2. Support frame; 3. Feeding assembly; 4. Discharge box; 5. Screening and grinding assembly; 6. Transmission assembly; 301. Guide pipe; 302. Conveying pipe; 303. Hopper; 501. Outer cylinder; 502. Inner cylinder; 503. Conveying blades; 504. Sealing ring; 505. Rotary disc; 506. Steel slag grinding ball; 507. Fly ash grinding ball; 601. Motor; 602. Drive gear; 603. Driven gear. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] 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.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown, the solid waste co-grinding cement grinding device provided in this embodiment includes: a protective cylinder 1, the middle of which is cylindrical and the two ends are conical. A support 2 is provided below the protective cylinder 1. The upper ends of the support 2 are respectively connected to the conical sidewalls at both ends of the protective cylinder 1 by bolts. A screening and grinding assembly 5 is provided inside the protective cylinder 1. The screening and grinding assembly 5 is used for screening and grinding solid waste. A feeding assembly 3 is provided on one side of the protective cylinder 1. The feeding assembly 3 is used to transport the crushed solid waste into the interior of the screening and grinding assembly 5. A transmission assembly 6 is provided on the side of the protective cylinder 1 away from the feeding assembly 3. The transmission assembly 6 is used for rotating the screening and grinding assembly 5. A discharge box 4 is provided below the middle cylindrical part of the protective cylinder 1. The discharge box 4 is conical and the upper end of the discharge box 4 is connected to the sidewall of the protective cylinder 1 by bolts.

[0033] In this embodiment, the feeding assembly 3, the screening and grinding assembly 5, and the transmission assembly 6 constitute the solid waste co-grinding cement grinding device involved in this application.

[0034] It should also be noted that the solid waste mentioned in this application may be steel slag, fly ash, blast furnace slag, etc. Figure 1 In this embodiment, steel slag is used as an example of solid waste for description. Of course, other types of solid waste can also adopt a similar structure, which will not be described in detail below.

[0035] Understandable, Figure 1The images only schematically illustrate some of the components of the grinding apparatus; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 Due to limitations, grinding equipment can also include components that are relatively... Figure 1 More or fewer parts.

[0036] Furthermore, in this embodiment, this feature is assembled into a complete grinding system by the protective cylinder 1, the feeding assembly 3, the screening and grinding assembly 5, and the transmission assembly 6, so as to realize the continuous operation of solid waste feeding, grinding, and discharging, and ensure the stability of the device structure.

[0037] Specifically, the feeding assembly 3 includes a guide pipe 301, which is tapered. The larger diameter end of the guide pipe 301 is rotatably connected to the middle position of the closed ring 504 in the screening and grinding assembly 5. The smaller diameter end of the guide pipe 301 passes through the rotating disk 505 and is connected to one end of the conveying pipe 302. The end of the conveying pipe 302 away from the guide pipe 301 is connected to the lower end of the hopper 303.

[0038] In this embodiment, solid waste is guided by the conical structure of the guide pipe 301, and in conjunction with the conveying pipe 302 and the hopper 303, the crushed solid waste is stably conveyed to the inside of the inner cylinder 502.

[0039] Example 2:

[0040] A sieving and grinding component 5 is provided based on Example 1.

[0041] Specifically, the screening and grinding assembly 5 includes an outer cylinder 501, an inner cylinder 502 is provided inside the outer cylinder 501, and multiple filter holes are provided on the outer walls of the outer cylinder 501 and the inner cylinder 502. The filter holes in the outer cylinder 501 are larger than the filter holes in the inner cylinder 502. The inner wall of the inner cylinder 502 is connected to the outer wall of the conveying blade 503, and the outer walls at both ends of the outer cylinder 501 are rotatably connected to the inner walls at both ends of the protective cylinder 1.

[0042] As a preferred implementation method, the double-cylinder grading and screening structure, in conjunction with the conveying blades 503, enables the preliminary screening and directional conveying of solid waste, laying the foundation for grading and grinding.

[0043] Specifically, a closing ring 504 is provided at one end of the outer cylinder 501 and the inner cylinder 502 near the feeding assembly 3. There are two closing rings 504, one of which is connected to the inner wall of the outer cylinder 501 and the outer wall of the inner cylinder 502 respectively, and the outer wall of the other closing ring 504 is connected to the inner wall of the inner cylinder 502.

[0044] In this embodiment, the double-closed ring 504 structure is used to seal the ends of the outer cylinder 501 and the inner cylinder 502, preventing material leakage during the grinding process.

[0045] Specifically, two sets of closed rings 504 are provided, and another set of closed rings 504 is provided at the end of the outer cylinder 501 and the inner cylinder 502 away from the transmission component 6. Multiple connecting shafts are provided on the side walls of both ends of the outer cylinder 501 and the inner cylinder 502, and one end of the connecting shaft is connected to the side wall of the outer cylinder 501 and the inner cylinder 502.

[0046] This configuration, through two sets of closed rings 504 and multiple connecting shafts, enhances the structural integrity of the outer cylinder 501 and the inner cylinder 502, ensuring synchronous rotation of the two cylinders.

[0047] Specifically, the end of the connecting shaft away from the outer cylinder 501 and the inner cylinder 502 is connected to the opposite side of the rotating disk 505. The inner cylinder 502 is equipped with multiple steel slag grinding balls 506, the outer cylinder 501 is equipped with multiple fly ash grinding balls 507, and the inner cylinder 502 is equipped with multiple fly ash grinding balls 507.

[0048] Among them, the differentiated configuration of steel slag grinding balls 506 and fly ash grinding balls 507, combined with the rotation of the double cylinder, enables targeted grinding of solid wastes with different particle sizes, thereby improving the grinding specificity.

[0049] Example 3:

[0050] A transmission component 6 is provided based on embodiment 2.

[0051] Specifically, the transmission assembly 6 includes a motor 601, which is connected to one side of the bracket 2 via a support plate. The output shaft of the motor 601 is connected to the middle of the drive gear 602. The upper part of the drive gear 602 meshes with the lower part of the driven gear 603. One side of the driven gear 603 is connected to the side of the rotating disk 505 away from the transmission shaft via a positioning pin.

[0052] In this embodiment, the motor 601 drives the gear transmission to provide stable rotational power to the screening and grinding assembly 5, ensuring continuous grinding operation.

[0053] In actual use, the crushed solid waste is first poured into the hopper 303 in the feeding assembly 3. Then the solid waste enters the conveying pipe 302 through the hopper 303 and then slides into the guide pipe 301. Since the guide pipe 301 is conical, the solid waste enters the inner cylinder 502 of the screening and grinding assembly 5 through the guide pipe 301.

[0054] Then, the motor 601 is started. The output shaft of the motor 601 drives the drive gear 602 to rotate. The rotation of the drive gear 602 drives the meshing driven gear 603 to rotate. The rotation of the driven gear 603 drives the rotating disk 505 to rotate. The rotating disk 505 drives the outer cylinder 501 and the inner cylinder 502 to rotate through the transmission shaft on one side.

[0055] While the outer cylinder 501 and inner cylinder 502 rotate, the conveying blades 503 inside the inner cylinder 502 also rotate. The conveying blades 503 then transport the incoming solid waste along the length of the inner cylinder 502. Simultaneously, the solid waste passes through filter holes on the outer wall of the inner cylinder 502, causing fly ash to fall into the outer cylinder 501. The rotation of the inner cylinder 502 then drives the steel slag grinding balls 506 inside the inner cylinder 502 to rotate simultaneously, thus grinding the screened steel slag inside the inner cylinder 502. Simultaneously, the rotation of the outer cylinder 501, along with the rotation of the inner cylinder 502, causes the fly ash inside the outer cylinder 501 to rotate. The grinding ball 507 grinds the fly ash that falls into the outer cylinder 501. After the steel slag grinding ball 506 grinds the steel slag, it enters the outer cylinder 501 through the filter hole of the inner cylinder 502. Then it falls into the protective cylinder 1 through the filter plate on the outer wall of the outer cylinder 501. At the same time, the fly ash ground by the fly ash grinding ball 507 falls into the protective cylinder 1. The solid waste in the protective cylinder 1 is discharged and collected through the discharge box 4. The solid waste on both sides of the inside of the protective cylinder 1 is guided to the middle of the inside of the protective cylinder 1 through the cones at both ends of the protective cylinder 1, and then discharged and collected through the discharge box 4.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solid waste co-processing cement grinding device, characterized in that: The protective cylinder (1) is cylindrical in the middle and tapered at both ends. A support (2) is provided below the protective cylinder (1). The upper ends of the support (2) are connected to the tapered sidewalls at both ends of the protective cylinder (1) by bolts. A screening and grinding assembly (5) is provided inside the protective cylinder (1). The screening and grinding assembly (5) is used for screening and grinding solid waste. A feeding assembly (3) is provided on one side of the protective cylinder (1). The feeding assembly (3) is used to transport the crushed solid waste into the screening and grinding assembly (5). A transmission assembly (6) is provided on the side of the protective cylinder (1) away from the feeding assembly (3). The transmission assembly (6) is used for rotating the screening and grinding assembly (5). A discharge box (4) is provided below the cylindrical part of the protective cylinder (1). The discharge box (4) is tapered, and the upper end of the discharge box (4) is connected to the sidewall of the protective cylinder (1) by bolts.

2. The solid waste co-processing cement grinding device according to claim 1, characterized in that: The feeding assembly (3) includes a guide pipe (301), which is conical. The large diameter end of the guide pipe (301) is rotatably connected to the middle position of the closed ring (504) in the screening and grinding assembly (5). The small diameter end of the guide pipe (301) passes through the rotating disk (505) and is connected to one end of the conveying pipe (302). The end of the conveying pipe (302) away from the guide pipe (301) is connected to the lower end of the hopper (303).

3. The solid waste co-processing cement grinding device according to claim 2, characterized in that: The screening and grinding assembly (5) includes an outer cylinder (501), and an inner cylinder (502) is provided inside the outer cylinder (501). Multiple filter holes are provided on the outer walls of the outer cylinder (501) and the inner cylinder (502), and the filter holes in the outer cylinder (501) are larger than the filter holes in the inner cylinder (502). The inner wall of the inner cylinder (502) is connected to the outer wall of the conveying blade (503), and the outer walls at both ends of the outer cylinder (501) are rotatably connected to the inner walls at both ends of the protective cylinder (1).

4. The solid waste co-processing cement grinding device according to claim 3, characterized in that: A closing ring (504) is provided at one end of the outer cylinder (501) and the inner cylinder (502) near the feeding assembly (3). There are two closing rings (504), one of which is connected to the inner wall of the outer cylinder (501) and the outer wall of the inner cylinder (502), and the outer wall of the other closing ring (504) is connected to the inner wall of the inner cylinder (502).

5. The solid waste co-processing cement grinding device according to claim 4, characterized in that: Two sets of closed rings (504) are provided, and another set of closed rings (504) is provided at the end of the outer cylinder (501) and the inner cylinder (502) away from the transmission assembly (6). Multiple connecting shafts are provided on the side walls of both ends of the outer cylinder (501) and the inner cylinder (502), and one end of the connecting shaft is connected to the side wall of the outer cylinder (501) and the inner cylinder (502).

6. The solid waste co-processing cement grinding device according to claim 5, characterized in that: The end of the connecting shaft away from the outer cylinder (501) and the inner cylinder (502) is connected to the opposite side of the rotating disk (505). The inner cylinder (502) is equipped with multiple steel slag grinding balls (506), the outer cylinder (501) is equipped with multiple fly ash grinding balls (507), and the inner cylinder (502) is equipped with multiple fly ash grinding balls (507).

7. The solid waste co-processing cement grinding device according to claim 6, characterized in that: The transmission assembly (6) includes a motor (601), which is connected to one side of the bracket (2) via a support plate. The output shaft of the motor (601) is connected to the middle of the drive gear (602). The upper part of the drive gear (602) meshes with the lower part of the driven gear (603). One side of the driven gear (603) is connected to the side of the rotating disk (505) away from the transmission shaft via a positioning pin.

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