A high-speed grinding device for slag powder

Abstract

The utility model provides a kind of high-speed grinding device of slag powder, belong to automation field.It solves the problem of low grinding efficiency of existing slag powder.The high-speed grinding device of slag powder, including grinding bin, the top of grinding bin is equipped with feed inlet, bottom is equipped with discharge port, at least two sieve trays are equipped in the inside of grinding bin, sieve hole is equipped on sieve tray, multiple sieve trays are sequentially spaced from top to bottom, the diameter of sieve hole gradually becomes smaller, the upper side of the uppermost sieve tray in grinding bin is equipped with crushing cutter head, multiple grinding rollers are equipped between adjacent two sieve trays, the top of grinding bin is equipped with driving motor, the transmission shaft of driving motor extends into the inside of grinding bin, grinding bin and grinding roller are all installed on transmission shaft and are synchronously driven by driving motor, the position corresponding each sieve tray on transmission shaft is equipped with scraping plate, the bottom of grinding bin and located at discharge port is equipped with pull-out type collection box.The utility model has the advantages of high efficiency, low energy consumption, convenient maintenance and strong adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of automation and relates to a grinding device, particularly a high-speed grinding device for slag powder. Background Technology

[0002] In the grinding and processing of hard materials such as slag powder, traditional grinding equipment, such as ball mills or single-stage vertical mills, generally suffers from low efficiency, high energy consumption, and poor product particle size uniformity. These devices typically employ one-time crushing or simple classification processes, making it difficult to achieve fine classification and step-by-step grinding of materials. This results in some materials being over-crushed while others fail to meet the required fineness, wasting energy and affecting the quality of the final product.

[0003] In addition, traditional screening mechanisms are prone to screen clogging when processing fine powder materials, which seriously affects the continuity and stability of production, requires frequent shutdowns for cleaning, increases maintenance costs and reduces production efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a high-speed grinding device for slag powder.

[0005] The purpose of this utility model can be achieved through the following technical solution: a high-speed grinding device for slag powder, including a grinding chamber, the top of which is provided with a feed inlet and the bottom with a discharge outlet, characterized in that at least two screens are provided inside the grinding chamber, the screens are provided with screen holes, and a plurality of screens are arranged at intervals from top to bottom, and the diameter of the screen holes gradually decreases. The grinding chamber is equipped with a crushing blade above the uppermost screen, and multiple grinding rollers are provided between two adjacent screens. The grinding chamber is equipped with a drive motor at its top. The drive shaft of the drive motor extends into the grinding chamber. The crushing disc and the grinding roller are both mounted on the drive shaft and driven synchronously by the drive motor. Each drive shaft is equipped with a scraper corresponding to the position of each screen plate to prevent screen holes from clogging. The bottom of the grinding chamber, located at the discharge port, is equipped with a pull-out collection box for collecting the ground slag powder.

[0006] In the above-mentioned high-speed grinding device for slag powder, the screen disc is detachably fixed to the inner wall of the grinding chamber via a mounting groove on the inner side of the grinding chamber.

[0007] In the above-mentioned high-speed grinding device for slag powder, the surface of the grinding roller is provided with staggered protruding grinding teeth.

[0008] In the above-mentioned high-speed grinding device for slag powder, the scraper is a flexible scraper, and its bottom end is in contact with the upper surface of the screen.

[0009] In the above-mentioned high-speed grinding device for slag powder, the drive shaft is a multi-layer stepped shaft structure, and the crushing disc, grinding roller and scraper are fixed on the corresponding shaft sections by keyway cooperation.

[0010] Compared with existing technologies, this high-speed slag powder grinding device adopts a multi-stage screen and grinding roller combination design, realizing graded grinding of materials and effectively improving grinding efficiency and product fineness uniformity. The single-motor synchronous drive of the crushing, grinding, and scraping mechanisms results in a compact structure, high transmission efficiency, and reduced energy consumption and maintenance costs. The detachable screen design enhances equipment flexibility and facilitates process adjustment. The unique scraper effectively prevents screen clogging, ensuring continuous and stable operation. The overall equipment boasts comprehensive advantages of high efficiency, low energy consumption, convenient maintenance, and strong adaptability. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the high-speed grinding device for slag powder.

[0012] Figure 2 This is a three-dimensional exploded structural diagram of the high-speed grinding device for slag powder.

[0013] In the diagram, 1 is the grinding chamber; 2 is the feed inlet; 3 is the sieve plate; 4 is the sieve hole; 5 is the crushing blade; 6 is the grinding roller; 7 is the drive motor; 8 is the transmission shaft; 9 is the scraper; and 10 is the collection box. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 , Figure 2As shown, this high-speed slag powder grinding device includes a grinding chamber 1. The grinding chamber 1 has a feed inlet 2 at the top and a discharge outlet at the bottom. The grinding chamber 1 has at least two screens 3 inside, and the screens 3 have screen holes 4. Multiple screens 3 are arranged alternately from top to bottom, and the diameter of the screen holes 4 gradually decreases. A crushing blade 5 is provided above the uppermost screen 3 inside the grinding chamber 1. Multiple grinding rollers 6 are provided between two adjacent screens 3. A drive motor 7 is provided at the top of the grinding chamber 1. The drive shaft 8 of the drive motor 7 extends into the grinding chamber 1. The crushing blade 5 and the grinding rollers 6 are both mounted on the drive shaft 8 and driven synchronously by the drive motor 7. A scraper 9 is provided on the drive shaft 8 corresponding to the position of each screen 3 to prevent the screen holes 4 from clogging. A pull-out collection box 10 is provided at the bottom of the grinding chamber 1 and at the discharge outlet to collect the ground slag powder.

[0016] The sieve disc 3 is detachably fixed to the inner wall of the grinding chamber 1 via a mounting groove on the inner side of the grinding chamber 1. The surface of the grinding roller 6 is provided with staggered raised grinding teeth. The scraper 9 is a flexible scraper, and its bottom end maintains contact with the upper surface of the sieve disc 3. The drive shaft 8 is a multi-layer stepped shaft structure, and the crushing disc 5, the grinding roller 6, and the scraper 9 are respectively fixed to the corresponding layer of shaft sections through keyway engagement.

[0017] This high-speed slag powder grinding device adopts a design combining multi-stage screens 3 and grinding rollers 6, achieving graded grinding of materials and effectively improving grinding efficiency and product fineness uniformity. The single-motor synchronous drive of the crushing, grinding, and scraping mechanisms results in a compact structure, high transmission efficiency, and reduced energy consumption and maintenance costs. The detachable design of the screens 3 enhances equipment flexibility and facilitates process adjustments. The unique scraper 9 effectively prevents clogging of the screen holes 4, ensuring continuous and stable operation. The overall equipment boasts comprehensive advantages including high efficiency, low energy consumption, convenient maintenance, and strong adaptability.

[0018] During operation, slag powder enters from the feed inlet 2 at the top of the grinding chamber 1, and is synchronously driven by the drive motor 7 through the transmission shaft 8 to rotate the crushing disc 5 and the grinding rollers 6 at each stage. First, the crushing disc 5 performs preliminary crushing of the slag raw material, causing it to fall into the first layer of screen discs 3. Since the screen discs 3 are arranged sequentially from top to bottom, and the diameter of the screen holes 4 gradually decreases, the material falls layer by layer under the action of gravity. Each time it passes through a layer of screen disc 3, larger particles are blocked and further ground by the grinding rollers 6 below that layer until the particle size is smaller than the diameter of the screen hole 4 before it can pass through. This process achieves progressive refinement of the material, ensuring that the final product has a uniform particle size. At the same time, the scraper 9, especially the flexible scraper, is set on the transmission shaft 8 corresponding to the position of each screen disc 3. It rotates with the shaft and continuously scrapes the surface of the screen disc 3, effectively preventing the screen holes 4 from clogging and ensuring screening efficiency. The ground fine powder finally falls from the bottom discharge port into a pull-out collection box 10 for convenient centralized processing and cleaning.

[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0020] Although this document uses a considerable amount of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A high-speed grinding device for slag powder, comprising a grinding chamber, wherein the grinding chamber has a feed inlet at the top and a discharge outlet at the bottom, characterized in that, The grinding chamber is equipped with at least two sieve discs, each with sieve holes. Multiple sieve discs are arranged at intervals from top to bottom, and the diameter of the sieve holes gradually decreases. The grinding chamber is equipped with a crushing blade above the uppermost screen, and multiple grinding rollers are provided between two adjacent screens. The grinding chamber is equipped with a drive motor at its top. The drive shaft of the drive motor extends into the grinding chamber. The crushing disc and the grinding roller are both mounted on the drive shaft and driven synchronously by the drive motor. Each drive shaft is equipped with a scraper corresponding to the position of each screen plate to prevent screen holes from clogging. The bottom of the grinding chamber, located at the discharge port, is equipped with a pull-out collection box for collecting the ground slag powder.

2. The high-speed grinding device for slag powder according to claim 1, characterized in that, The sieve disc is detachably fixed to the inner wall of the grinding chamber via a mounting groove on the inner side of the grinding chamber.

3. The high-speed grinding device for slag powder according to claim 1, characterized in that, The surface of the grinding roller is provided with staggered raised grinding teeth.

4. The high-speed grinding device for slag powder according to claim 1, characterized in that, The scraper is a flexible scraper, and its bottom end is in contact with the upper surface of the screen.

5. The high-speed grinding device for slag powder according to claim 1, characterized in that, The drive shaft has a multi-layer stepped shaft structure, and the crushing disc, grinding roller and scraper are fixed to the corresponding shaft segments by keyway connection.

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