A steel slag pulverizer

Abstract

The utility model discloses a kind of steel slag pulverizer, including shell assembly and axle core component, shell assembly is hollow cavity, axle core component is located in its and both coaxial;Axle core component contains driving connection part, upper cone cylinder part etc., upper and lower cone cylinder part outside sleeve polishing sleeve, and the inner wall of shell assembly forms polishing passageway. Shell assembly is connected by upper, middle and lower shell flange, upper shell top flange plate can be dismantled and can adjust axle core component swing amplitude, lower shell has discharge port;Polishing sleeve has connecting shell outside, and its clamping structure corresponds with discharge port. The device can efficiently and uniformly polish steel slag, discharge smoothly, maintain conveniently, and is suitable for steel slag processing field.

Description

Technical Field

[0001] This utility model provides a grinding mill, and particularly relates to a steel slag grinding mill. Background Technology

[0002] A steel slag grinding mill is a device used to grind steel slag into fine particles for purposes such as steel slag reuse. In existing technology, common steel slag grinding mills typically consist of a shell and core components for grinding. The shell is usually an integral structure, with rotatable grinding components installed inside. The steel slag is ground by the relative movement of the grinding components and the inner wall of the shell.

[0003] However, this type of steel slag grinding mill has many shortcomings. On the one hand, the outer shell is integral, which makes it inconvenient to inspect and maintain the internal grinding structure, and it is difficult to flexibly adjust the swing amplitude of the grinding components according to different grinding needs, resulting in limited grinding efficiency and adaptability. On the other hand, the structural design of its grinding components is not reasonable enough. During the grinding process, the flow of steel slag in the equipment is not smooth enough, and it is easy to accumulate, affecting the uniformity of grinding. At the same time, the design of the discharge structure is also flawed. The discharge port is prone to misalignment with the discharge component after grinding, causing discharge blockage and further reducing the efficiency of grinding and discharge. Utility Model Content

[0004] In order to solve the above problems, this application provides a steel slag grinding mill, which solves the problems of low grinding efficiency, uneven particle size, easy clogging of discharge, and inconvenient adjustment of shaft oscillation in existing equipment, thereby improving the grinding effect and smooth discharge of steel slag.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a steel slag grinding mill, comprising a shell assembly and a shaft assembly; the shell assembly is a hollow cavity structure, the shaft assembly is disposed within the hollow cavity of the shell assembly, and the shaft assembly is coaxially disposed with the shell assembly; the shaft assembly includes a drive connection part, an upper conical part, a middle connection part, and a lower conical part connected sequentially from top to bottom, the upper conical part and the lower conical part have the same taper direction, and a grinding sleeve is sleeved on the outer side of both the upper conical part and the lower conical part; a grinding channel is formed between the inner sidewall of the shell assembly and the outer sidewall of the grinding sleeve for steel slag to pass through and be ground, and the steel slag is ground to a certain fine particle size in the grinding channel and then discharged.

[0006] Preferably, the outer shell assembly includes an upper shell, a middle shell, and a lower shell connected sequentially from top to bottom, and the upper shell, the middle shell, and the lower shell together enclose the hollow cavity.

[0007] Preferably, the upper housing, the middle housing, and the lower housing are connected by flanges and fasteners;

[0008] The top of the upper housing is provided with a flange plate through which the driven connection part passes. The flange plate is detachable for feeding materials. By changing the position and number of the locking bolts of the flange plate, different amplitudes of swing of the shaft assembly can be achieved, which is convenient for grinding.

[0009] The bottom of the lower housing is provided with a discharge port.

[0010] Preferably, the drive connection part is used to connect with an external drive device to drive the shaft assembly to rotate.

[0011] Preferably, the grinding sleeve is detachably connected to the upper conical part and the lower conical part by means of snap-fit ​​or other means.

[0012] Preferably, the grinding sleeve is fitted with a connecting shell located on the lower housing portion, and its lower end is provided with a locking structure corresponding to the discharge port, so that the outlet of the connecting shell is always aligned with the discharge port, which facilitates the removal of powder after processing.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0014] To address the problems of low grinding efficiency, uneven particle size, easy discharge blockage, and inconvenient adjustment of the shaft assembly in existing steel slag grinding mills, this steel slag grinding mill adopts an outer shell assembly consisting of an upper shell, a middle shell, and a lower shell connected by flanges and fasteners. The removable flange plate at the top of the upper shell allows for different amplitude swings of the shaft assembly by changing the position and number of locking bolts, facilitating grinding. The shaft assembly includes a drive connection section, an upper cone section, a middle connection section, and a lower cone section connected sequentially from top to bottom. Grinding sleeves fitted on the outer sides of the upper and lower cone sections form grinding channels with the inner wall of the outer shell assembly. The drive connection section drives the shaft assembly to rotate, allowing the steel slag to be thoroughly ground into fine particles within the grinding channels. Simultaneously, the connecting shell located on the lower shell section, fitted outside the grinding sleeve, has a locking structure at its lower end corresponding to the discharge port at the bottom of the lower shell, ensuring that the outlet of the connecting shell is always aligned with the discharge port, preventing discharge blockage, and thus efficiently and uniformly completing the grinding of steel slag and ensuring smooth discharge.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a bottom view of a steel slag grinding mill according to the present invention;

[0017] Figure 2This is a cross-sectional view of the outer shell assembly of a steel slag grinding mill according to the present invention;

[0018] Figure 3 This is an exploded view of the outer shell assembly and the shaft assembly of a steel slag grinding mill according to the present invention.

[0019] Figure 4 This is a longitudinal exploded view of the shaft assembly of a steel slag grinding mill according to this utility model.

[0020] As shown in the figure:

[0021] 1. Housing components;

[0022] 11. Flange plate; 12. Discharge port;

[0023] 2. Shaft assembly;

[0024] 21. Drive connection part; 22. Upper conical part; 23. Middle connection part; 24. Lower conical part; 25. Grinding sleeve; 26. Connecting shell; 27. Engaging structure. Detailed Implementation

[0025] 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.

[0026] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figure 1 and Figure 2As shown, a steel slag grinding mill includes a shell assembly 1 and a shaft assembly 2. The shell assembly 1 is a hollow cavity, and the shaft assembly 2 is placed inside the hollow cavity and the two are coaxial. The shaft assembly 2 has a drive connection part 21, an upper conical part 22, a middle connection part 23, and a lower conical part 24 connected sequentially from top to bottom. The upper conical part 22 and the lower conical part 24 have the same taper direction, and both of them are fitted with grinding sleeves 25. The inner wall of the shell assembly 1 and the outer wall of the grinding sleeve 25 form a grinding channel through which the steel slag is ground into fine particles and then discharged. The drive connection part 21 is used to connect an external drive device to drive the shaft assembly 2 to rotate. The grinding sleeve 25 and the upper conical part 22 and the lower conical part 24 are detachably connected by snap-fit. The bottom of the shell assembly 1 has a discharge port for discharging the ground steel slag.

[0029] In this embodiment, the coaxial arrangement of the outer shell assembly 1 and the shaft assembly 2 ensures uniform force during grinding. The drive connection 21 drives the shaft assembly 2 to rotate, creating a stable grinding space between the grinding sleeve 25 and the inner wall of the outer shell assembly 1. The steel slag is continuously ground within the channel, improving grinding uniformity. The grinding sleeve 25 is detachably connected to the upper and lower conical sections via a snap-fit ​​design, facilitating replacement after wear and reducing maintenance costs. The discharge port at the bottom of the outer shell assembly 1 provides a smooth discharge path for the ground steel slag, ensuring continuous operation of the equipment.

[0030] like Figure 3 and Figure 4 As shown, the outer casing assembly 1 consists of an upper casing, a middle casing, and a lower casing connected sequentially from top to bottom. The three casings together enclose a hollow cavity and are connected by flanges and fasteners. The top of the upper casing has a flange plate 11 through which the drive connection part 21 passes. The flange plate 11 is detachable for feeding materials. Changing the position and number of its locking bolts allows the shaft assembly 2 to swing at different amplitudes, facilitating grinding. The bottom of the lower casing has a discharge port 12. The grinding sleeve 25 is covered by a connecting outer casing 26 located in the lower casing. Its lower end has a locking structure 27 corresponding to the discharge port 12, which ensures that the outlet of the connecting outer casing 26 is always aligned with the discharge port 12, facilitating the discharge of powder after processing.

[0031] In this embodiment, the upper, middle, and lower shells of the outer casing assembly 1 are connected by flanges and fasteners, facilitating disassembly and maintenance of the internal structure. The flange plate 11 on the top of the upper shell is removable, which facilitates material feeding and allows adjustment of the swing amplitude of the shaft assembly 2 by adjusting the position and number of locking bolts to adapt to different steel slag grinding requirements. The locking structure 27 connecting the outer side of the outer casing 26 corresponds to the discharge port 12 of the lower shell, avoiding misalignment and blockage during material discharge and ensuring smooth and efficient powder discharge.

[0032] When using this device, an existing motor is required as an external drive unit connected to the drive connection 21 to provide rotational power. A feeder is also required to quantitatively transport steel slag into the device through the flange plate 11. At the same time, a screening device can be connected at the discharge port 12 to screen the particle size of the discharged powder. The grinding sleeve 25 can be made of high-chromium cast iron to improve wear resistance. The upper shell, middle shell and lower shell of the outer shell assembly 1 can be made of Q235 steel. The flange and fasteners can be made of stainless steel to enhance rust prevention.

[0033] Specifically, during installation, the upper, middle, and lower shells of the outer casing assembly 1 are first aligned with their flange faces. Stainless steel bolts are passed through the flange holes and tightened to secure them. The flange plate 11 is fixed to the top of the upper shell with bolts, ensuring that there is a suitable clearance at the through-hole of the drive connection part 21. The motor is connected to the drive connection part 21 through a coupling. During installation, the shaft deviation needs to be calibrated. The discharge end of the feeder is connected to the feeding port of the flange plate 11 through a flexible pipe. During operation, the motor is first started to drive the shaft assembly 2 to rotate at a preset speed. Then, the feeder is turned on to feed the steel slag into the grinding channel at a uniform speed. During the steel slag grinding process, the swing amplitude of the shaft assembly 2 can be changed by adjusting the bolt position of the flange plate 11 according to the grinding situation. The ground powder enters the discharge port 12 through the connecting outer casing 26. If it is necessary to control the particle size, the screening equipment can be started after the discharge port 12. Unqualified particles can be fed back into the device by the feeder through the return pipe for secondary grinding.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A steel slag grinding mill, characterized in that, The assembly includes a housing assembly (1) and a shaft assembly (2); the housing assembly (1) is a hollow cavity structure, and the shaft assembly (2) is disposed in the hollow cavity of the housing assembly (1) and is coaxially disposed with the housing assembly (1); the shaft assembly (2) includes a drive connection part (21), an upper conical part (22), a middle connection part (23) and a lower conical part (24) connected sequentially from top to bottom, the upper conical part (22) and the lower conical part (24) have the same taper direction, and a grinding sleeve (25) is sleeved on the outer side of both the upper conical part (22) and the lower conical part (24); a grinding channel is formed between the inner sidewall of the housing assembly (1) and the outer sidewall of the grinding sleeve (25) for steel slag to pass through and be ground, and the steel slag is ground to a certain fine particle in the grinding channel and then discharged.

2. The steel slag grinding mill according to claim 1, characterized in that, The outer shell assembly (1) includes an upper shell, a middle shell, and a lower shell connected sequentially from top to bottom, and the upper shell, the middle shell, and the lower shell together enclose the hollow cavity.

3. A steel slag grinding mill according to claim 2, characterized in that, The upper housing, the middle housing, and the lower housing are connected by flanges and fasteners; The top of the upper housing is provided with a flange plate (11) through which the driven connection part (21) passes. The flange plate (11) is detachable for feeding materials. By changing the position and number of locking bolts of the flange plate (11), the shaft assembly (2) can swing at different amplitudes, which is convenient for grinding. The bottom of the lower housing is provided with a discharge port (12).

4. A steel slag grinding mill according to claim 1, characterized in that, The drive connection part (21) is used to connect with an external drive device to drive the shaft assembly (2) to rotate.

5. A steel slag grinding mill according to claim 1, characterized in that, The grinding sleeve (25) is detachably connected to the upper conical part (22) and the lower conical part (24) by means of snap-fit ​​or other means.

6. A steel slag grinding mill according to claim 3, characterized in that, The grinding sleeve (25) is fitted with a connecting shell (26) located in the lower shell part. Its lower end is provided with a locking structure (27) corresponding to the discharge port (12), so that the outlet of the connecting shell (26) is always aligned with the discharge port (12), which facilitates the removal of powder after processing.

Images