Efficient staged grinding device for superfine slag powder

Abstract

The utility model discloses an efficient staged grinding device for superfine slag powder, which belongs to the technical field of superfine slag powder production, and adopts the technical scheme that the efficient staged grinding device comprises a base, a pretreatment component is arranged on the left side of the base, and a collaborative grinding component is arranged on the right side of the base; and the pretreatment assembly comprises a bucket elevator fixedly connected to the top of the base, the top of the bucket elevator communicates with a storage hopper, and the bottom of the storage hopper communicates with a feeding frame. Therefore, large blocks in raw materials directly enter a grinding link, equipment load is increased, grinding efficiency is low, continuity of the whole grinding process is affected, accurate grading treatment on the materials according to the granularity requirement of finished products is inconvenient, coarse and fine particles are mixed in the grinding process, and the grinding efficiency is improved. The particle size cannot be effectively controlled for respective grinding treatment, so that the product quality is influenced.

Description

Technical Field

[0001] This utility model relates to the field of slag powder production technology, and in particular to a high-efficiency staged grinding device for slag powder. Background Technology

[0002] Slag is a waste residue discharged during the blast furnace ironmaking process. After high-temperature smelting and water quenching, it forms a large amount of glassy slag containing silicon and oxygen tetrahedra. Its main components include active minerals such as C2S, C3S, C3A, and C2AS, which have certain potential hydraulic activity. Studies have shown that increasing the fineness of slag can significantly improve its activity index, for example, increasing the specific surface area to greater than 400 m². 2 Slag powder with a concentration of 0.5 kg / kg can replace part of cement clinker, improving the mechanical strength and workability of concrete. When the specific surface area is higher, the 28-day activity index is also increased accordingly, which is higher than that of ordinary fine cement clinker. Therefore, improving the grinding process of slag is crucial to improving the activity and application performance of slag.

[0003] However, the top hopper of the barrel is set too high, which is not convenient for feeding materials, and it cannot be filtered in multiple stages, resulting in poor crushing effect. Therefore, we propose a high-efficiency, low-consumption, staged grinding device for slag micro powder.

[0004] The existing patent (publication number: CN218690330U) discloses a high-efficiency, low-consumption, staged grinding device for slag micron powder. By setting up a conveying mechanism, it facilitates the feeding of raw materials. By setting up a first grinding mechanism, it can perform preliminary grinding of raw materials. By setting up a second grinding mechanism, it can perform secondary grinding of raw materials, making the raw materials more thoroughly crushed. By setting up a receiving mechanism, it can collect micron powder. This solves the problems of existing slag micron powder grinding devices where the top feeding hopper is set too high, making it inconvenient to feed materials, and that multi-stage filtration is not possible, resulting in poor crushing effect.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, existing high-efficiency staged grinding devices for slag powder typically lack a pretreatment mechanism for raw materials. This results in larger pieces of raw materials directly entering the grinding stage, increasing equipment load and reducing grinding efficiency. This affects the continuity of the overall grinding process and makes it difficult to accurately classify materials according to the particle size requirements of the finished product. Consequently, coarse and fine particles are mixed during the grinding process, making it impossible to effectively control particle size for separate grinding and affecting product quality.

[0006] To address this, a high-efficiency, staged grinding device for slag powder is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a high-efficiency, staged grinding device for slag powder, which solves the problem that existing high-efficiency, staged grinding devices for slag powder usually lack a pretreatment mechanism for raw materials. This results in larger pieces of raw materials directly entering the grinding stage, increasing the equipment load and reducing the grinding efficiency, affecting the continuity of the overall grinding process. Furthermore, it is not convenient to accurately classify the materials according to the particle size requirements of the finished product, leading to a mixture of coarse and fine particles during the grinding process, making it impossible to effectively control the particle size for separate grinding, thus affecting the product quality.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency staged grinding device for slag powder, comprising a base, a pretreatment component disposed on the left side of the base, and a co-grinding component disposed on the right side of the base;

[0009] The pretreatment component includes a bucket elevator fixedly connected to the top of the base. The top of the bucket elevator is connected to a storage hopper, the bottom of the storage hopper is connected to a feeding frame, the inside of the feeding frame is equipped with an auger, the bottom of the feeding frame is connected to a pretreatment frame, the top of the pretreatment frame is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to a dispersing rotary disk.

[0010] Preferably, the collaborative grinding assembly includes a grinding frame fixedly connected to the top of the base, the grinding frame being fixedly connected to the pretreatment frame, a grinding roller being provided on the left side of the grinding frame, and a screening plate being provided at the bottom of the grinding roller.

[0011] Preferably, a lifting cylinder is fixedly connected to the right side of the top of the crushing frame, and a top plate is fixedly connected to the output end of the lifting cylinder. Grinding rollers are provided at the bottom of the top plate.

[0012] Preferably, a collection box is slidably connected to the right side of the crushing frame, and the collection box is located at the bottom of the grinding roller.

[0013] Preferably, a control valve is provided at the bottom of the storage hopper, and a flow detector is provided on the outer side of the bottom of the storage hopper.

[0014] Preferably, an electrical control cabinet is fixedly connected to the outside of the crushing frame, and the output end of the electrical control cabinet is fixedly connected to the crushing roller.

[0015] Preferably, a sealing sleeve is fitted at the bottom of the pretreatment frame, and the sealing sleeve is made of rubber.

[0016] Preferably, a limiting support rod is fixedly connected to the top of the top plate, the limiting support rod is slidably connected to the crushing frame, and a rotary motor is fixedly connected inside the top plate, the output end of the rotary motor being fixedly connected to the grinding roller.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application enables the preliminary dispersion and pretreatment of raw materials through the pretreatment component. Compared with the traditional conveying method, it improves the continuity of raw material conveying. At the same time, the drive motor at the top of the pretreatment frame drives the dispersion rotating disk to rotate at high speed, which performs preliminary dispersion and pretreatment of the raw materials, breaks up larger raw material blocks, and makes the raw material particle size initially uniform, improving the preliminary treatment effect of the raw materials. This provides raw materials with more uniform particle size for subsequent co-grinding, thereby improving the overall grinding efficiency.

[0019] 2. This application enables staged preliminary grinding through a collaborative grinding component, which improves grinding efficiency and particle uniformity compared to traditional single grinding methods. Through staged grinding, the finished product has a more uniform particle size and a higher activity index, solving the problems of poor grinding effect and uneven particle size of traditional devices, and realizing the efficient production of slag powder. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the efficient staged grinding device for slag powder of this utility model.

[0021] Figure 2 This is a schematic diagram of the pretreatment component of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the collaborative grinding component of this utility model;

[0023] Figure 4 This is a cutout drawing of the storage hopper of this utility model;

[0024] Figure 5 This is a schematic diagram of the lifting cylinder of this utility model.

[0025] In the diagram, 1. Base; 2. Control valve; 3. Flow detector; 4. Pretreatment assembly; 401. Bucket elevator; 402. Storage hopper; 403. Feeding frame; 404. Screwdriver; 405. Pretreatment frame; 406. Drive motor; 407. Dispersing rotary disc; 5. Co-grinding assembly; 501. Crushing frame; 502. Crushing roller; 503. Screening plate; 504. Lifting cylinder; 505. Top plate; 506. Grinding roller; 507. Collection box; 6. Electrical control cabinet; 7. Sealing sleeve; 8. Limiting support rod; 9. Rotary motor. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A high-efficiency staged grinding device for slag powder includes a base 1, a pretreatment component 4 is arranged on the left side of the base 1, and a co-grinding component 5 is arranged on the right side of the base 1.

[0029] The pretreatment component 4 includes a bucket elevator 401 fixedly connected to the top of the base 1. The top of the bucket elevator 401 is connected to a storage hopper 402, the bottom of the storage hopper 402 is connected to a feeding frame 403, the inside of the feeding frame 403 is provided with an auger 404, the bottom of the feeding frame 403 is connected to a pretreatment frame 405, the top of the pretreatment frame 405 is fixedly connected to a drive motor 406, and the output end of the drive motor 406 is fixedly connected to a dispersing rotary disk 407.

[0030] In this embodiment: by starting the bucket elevator 401, the buckets inside the bucket elevator 401 move with the transmission belt, vertically lifting the raw material to the top opening of the storage hopper 402. The raw material falls into the storage hopper 402 for temporary storage by gravity. The control valve 2 at the bottom of the storage hopper 402 adjusts its opening according to the feedback of the flow detector 3, so that the raw material enters the feeding frame 403 at a stable flow rate. Then, the auger 404 inside the feeding frame 403 rotates under the drive of the motor, pushing the raw material along the bottom of the frame to the pretreatment frame 405. The spiral blade design of the auger 404 can prevent the raw material from accumulating and clogging. After the raw material enters the pretreatment frame 405, the drive motor 406 at the top drives the dispersing rotating disk 407 to rotate at high speed. The blades on the disk throw the raw material against the inner wall of the frame. Through impact and shearing action, the raw material blocks are initially broken up, and the particle size of the raw material is initially uniform. This realizes the lifting, temporary storage, quantitative conveying and initial dispersion of the raw material, providing raw materials with more uniform particle size for subsequent co-grinding, and improving the overall grinding efficiency.

[0031] Specifically, such as Figure 3 As shown, the co-grinding assembly 5 includes a crushing frame 501 fixedly connected to the top of the base 1. The crushing frame 501 is fixedly connected to the pretreatment frame 405. A crushing roller 502 is provided on the left side of the crushing frame 501, and a screening plate 503 is provided at the bottom of the crushing roller 502.

[0032] Specifically, such as Figure 3As shown, a lifting cylinder 504 is fixedly connected to the right side of the top of the crushing frame 501. A top plate 505 is fixedly connected to the output end of the lifting cylinder 504. A grinding roller 506 is provided at the bottom of the top plate 505.

[0033] Specifically, such as Figure 3 As shown, a collection box 507 is slidably connected to the right side of the crushing frame 501, and the collection box 507 is located at the bottom of the grinding roller 506.

[0034] In this embodiment: the pre-treated raw material enters the left side of the crushing frame 501 from the bottom outlet of the pre-treatment frame 405, and then the crushing roller 502 is controlled by the electrical control cabinet 6 to rotate at a set speed. The two crushing rollers 502 rotate in opposite directions, crushing the raw material into smaller particles through extrusion pressure. The crushed particles then fall onto the bottom screening plate 503. The screen hole size of the screening plate 503 is designed according to the finished product particle size requirements. Qualified fine particles fall through the screen holes, while unqualified coarse particles are blocked by the screening plate 503. Then, the vibration device at the bottom of the screening plate 503 moves them to the grinding roller 506. Below, the lifting cylinder 504 pushes the top plate 505 down, so that the grinding roller 506 contacts the grinding surface at the bottom of the crushing frame 501 and maintains the set pressure. The rotary motor 9 inside the top plate 505 drives the grinding roller 506 to rotate at high speed, and performs secondary grinding and refinement of the particles. The particles are crushed and rubbed between the grinding roller 506 and the grinding surface, further reducing the particle size. The operator can slide out the collection box 507 to complete the collection of the finished product, thus realizing staged grinding, making the finished product finer and more active. At the same time, the setting of the screening plate 503 ensures the uniformity of the finished product particle size.

[0035] Specifically, such as Figure 4 As shown, a control valve 2 is installed at the bottom of the storage hopper 402, and a flow detector 3 is installed on the outer side of the bottom of the storage hopper 402.

[0036] Specifically, such as Figure 1 As shown, an electrical control cabinet 6 is fixedly connected to the outside of the crushing frame 501, and the output end of the electrical control cabinet 6 is fixedly connected to the crushing roller 502.

[0037] In this embodiment: By setting control valve 2 and flow detector 3, after the slag raw material is temporarily stored in the storage hopper 402 by the bucket elevator 401, the operator sets the raw material flow parameters through the electrical control cabinet 6. The control valve 2 adjusts its opening according to the command to make the raw material fall evenly. The flow detector 3 monitors the feeding flow in real time and feeds it back to the electrical control cabinet 6. If the flow fluctuation exceeds the set range, the electrical control cabinet 6 will automatically adjust the opening of the control valve 2 to ensure that the amount of raw material entering the feeding frame 403 is stable, so as to avoid the subsequent grinding process being blocked due to the large or small amount of feeding. At the same time, it provides a continuous and uniform raw material input to the crushing roller 502, ensuring the stability of grinding efficiency and solving the problem of uneven feeding in traditional devices. By setting the electrical control cabinet 6, before the device is started, the operator sets the rotation speed, running time and other parameters of the crushing roller 502 on the human-machine interface of the electrical control cabinet 6. After the device is started, the electrical control cabinet 6 outputs current to the drive motor 406 of the crushing roller 502 to drive the crushing roller 502 to rotate and perform preliminary crushing of the raw material entering the crushing frame 501.

[0038] Specifically, such as Figure 1 As shown, a sealing sleeve 7 is fitted at the bottom of the pretreatment frame 405, and the sealing sleeve 7 is made of rubber.

[0039] Specifically, such as Figure 5 As shown, a limiting support rod 8 is fixedly connected to the top of the top plate 505. The limiting support rod 8 is slidably connected to the crushing frame 501. A rotary motor 9 is fixedly connected inside the top plate 505. The output end of the rotary motor 9 is fixedly connected to the grinding roller 506.

[0040] In this embodiment: By setting a sealing sleeve 7, when the raw material is conveyed into the pretreatment frame 405, the drive motor 406 drives the dispersing rotating disk 407 to rotate at high speed. At this time, the sealing sleeve 7 fills the gap between the frame and the outside through its own elastic deformation, preventing the raw material dust from overflowing, thus preventing dust pollution of the working environment and avoiding waste caused by raw material leakage, thereby improving the environmental friendliness of the device and the utilization rate of raw materials. By setting a limiting support rod 8 and a rotating motor 9, when the lifting cylinder 504 pushes the top plate 505 down, its limiting support rod 8 slides in the guide hole to ensure that the top plate 505 moves vertically downward, preventing the grinding roller 506 from shifting. After the top plate 505 is in place, the rotating motor 9 starts, driving the grinding roller 506 to rotate at high speed, grinding and refining the particles conveyed by the screening plate 503. This solves the problem of poor grinding effect caused by positional offset in traditional grinding devices and improves the quality of finished products.

[0041] Working Principle: In the process of using the high-efficiency staged grinding device for slag powder, the slag raw material is first fed into the bucket elevator 401 by external transportation equipment. The bucket elevator 401 vertically lifts the raw material into the storage hopper 402 for temporary storage through its internal buckets. The control valve 2 at the bottom of the storage hopper 402 controls the lowering of the raw material, while the flow detector 3 monitors the raw material flow rate in real time to ensure uniform and stable feeding to subsequent equipment. Then, after passing through the control valve 2 and the flow detector 3, the raw material enters the feeding frame 403. Next, the motor on the outside of the feeding frame 403 starts the auger 404, and then the material is fed into the slag powder. The auger 404 inside the material frame 403 transports the raw material to the pretreatment frame 405 by rotating. During this transport, the auger 404 prevents material accumulation and ensures continuous conveying. Upon reaching the pretreatment frame 405, the drive motor 406 is started, driving the dispersing disc 407 to rotate at high speed. The rotating dispersing disc 407 performs preliminary dispersion and pretreatment of the raw material, breaking up larger pieces to prepare for subsequent crushing. Simultaneously, the rubber sealing sleeve 7 fitted at the bottom of the pretreatment frame 405 prevents material leakage and ensures the equipment's airtightness. The pre-treated raw material then enters the grinding frame 501 of the co-grinding assembly 5. The grinding roller 502 is then started to rotate via the electrical control cabinet 6. The grinding roller 502 initially grinds the raw material, breaking it into smaller particles through the extrusion force generated by its rotation. These particles fall onto the screening plate 503 at the bottom, where they are screened. Qualified fine particles pass through the screening plate 503 and proceed to the next collection step, while larger, unqualified particles are conveyed to the grinding frame 501 via a vibrating screen at the bottom of the screening plate 503. Inside the collection box 507 on the right, the lifting cylinder 504 is activated, which pushes the top plate 505 downward. Then, the top plate 505 drives the grinding roller 506 at the bottom to descend to a suitable position. At the same time, the rotary motor 9 is activated, which drives the grinding roller 506 to rotate at high speed. The grinding roller 506 further grinds and refines the particles. Its limiting support rod 8 can ensure the stability of the top plate 505 during descent and ascent, and prevent deviation. Then, the particles are taken out through the sliding collection box 507 for convenient subsequent finished product processing, so as to achieve efficient production of slag powder.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 high-efficiency staged grinding device for slag powder, comprising a base (1), characterized in that: A pretreatment component (4) is provided on the left side of the base (1), and a co-grinding component (5) is provided on the right side of the base (1). The pretreatment component (4) includes a bucket elevator (401) fixedly connected to the top of the base (1). The top of the bucket elevator (401) is connected to a storage hopper (402), the bottom of the storage hopper (402) is connected to a feeding frame (403), an auger (404) is provided inside the feeding frame (403), the bottom of the feeding frame (403) is connected to a pretreatment frame (405), the top of the pretreatment frame (405) is fixedly connected to a drive motor (406), and the output end of the drive motor (406) is fixedly connected to a dispersing rotary disk (407).

2. The efficient staged grinding device for slag powder according to claim 1, characterized in that: The co-grinding assembly (5) includes a grinding frame (501) fixedly connected to the top of the base (1). The grinding frame (501) is fixedly connected to the pretreatment frame (405). A grinding roller (502) is provided on the left side of the grinding frame (501), and a screening plate (503) is provided at the bottom of the grinding roller (502).

3. The efficient staged grinding device for slag powder according to claim 2, characterized in that: A lifting cylinder (504) is fixedly connected to the right side of the top of the crushing frame (501). A top plate (505) is fixedly connected to the output end of the lifting cylinder (504). A grinding roller (506) is provided at the bottom of the top plate (505).

4. The efficient staged grinding device for slag powder according to claim 3, characterized in that: A collection box (507) is slidably connected to the right side of the crushing frame (501), and the collection box (507) is located at the bottom of the grinding roller (506).

5. The efficient staged grinding device for slag powder according to claim 1, characterized in that: A control valve (2) is provided at the bottom of the storage hopper (402), and a flow detector (3) is provided on the outer side of the bottom of the storage hopper (402).

6. The efficient staged grinding device for slag powder according to claim 2, characterized in that: An electrical control cabinet (6) is fixedly connected to the outside of the crushing frame (501), and the output end of the electrical control cabinet (6) is fixedly connected to the crushing roller (502).

7. The efficient staged grinding device for slag powder according to claim 1, characterized in that: The bottom of the pretreatment frame (405) is fitted with a sealing sleeve (7), which is made of rubber.

8. The efficient staged grinding device for slag powder according to claim 3, characterized in that: The top of the top plate (505) is fixedly connected to a limiting support rod (8), which is slidably connected to the crushing frame (501). A rotary motor (9) is fixedly connected inside the top plate (505), and the output end of the rotary motor (9) is fixedly connected to the grinding roller (506).

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