Cement grinding equipment
By adding grinding cones and grinding cylinders in cement grinding equipment, double grinding of cement clinker is realized, solving the problems of poor quality and uneven fineness of cement grinding in existing equipment, and improving cement grinding fineness uniformity and quality afterwards.
Patent Information
- Application Number
- CN202420818511.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the existing cement grinding equipment, horizontal roller grinding equipment that only completes cement grinding through two grinding rollers, resulting in poor cement grinding quality and large differences in cement fineness after grinding.
A cement grinding equipment is designed, including grinding rollers, grinding boxes, grinding cones and grinding drums. After the first grinding of two grinding rollers, cement clinker enters the grinding cone and grinding drum. In the gap between the two, grind again to improve the quality of cement grinding.
Through this design, the fineness uniformity and grinding quality after cement grinding are improved, and the problems of poor quality and uneven fineness of cement grinding in existing equipment are solved.
Smart Images
Figure CN222490200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mud grinding equipment, in particular to cement grinding equipment. Background Art
[0002] Cement grinding is the last process of cement manufacturing and also the process that consumes the most electricity. Its main function is to grind cement clinker (and retarder, performance adjustment materials, etc.) to a suitable particle size (expressed in fineness, specific surface area, etc.), form a certain particle gradation, increase its hydration area, accelerate the hydration rate, and meet the requirements of cement paste coagulation and hardening.
[0003] The cement grinding quality of the horizontal roller mill that only uses two grinding rollers to complete cement grinding in the existing cement grinding equipment is poor, and there is a large difference in the fineness of the cement after grinding. Therefore, we propose a cement grinding device. Utility Model Content
[0004] The utility model aims to provide a cement grinding equipment, which has the advantages of improving the uniformity of the fineness of cement after grinding and also improving the quality of cement grinding, and solves the problem that the cement grinding quality of the horizontal roller mill equipment that completes cement grinding by only two grinding rollers in the existing cement grinding equipment is poor and there is a large difference in the fineness of the cement after grinding.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cement grinding equipment, comprising grinding rollers, a grinding box, a grinding cone and a grinding cylinder, wherein grinding rollers are symmetrically rotatably installed at positions on both sides of the upper surface of the grinding box, a feed hopper is fixedly installed on the upper surface of the grinding box, a grinding cone is rotatably installed at the bottom axis position of the inner wall of the grinding box through a rotating shaft, a grinding cylinder is fixedly installed inside the grinding box, and the grinding cone is located inside the grinding cylinder, a discharge pipe is fixedly connected to the lower surface of the grinding cylinder, a cylinder is fixedly installed on the upper surface of the grinding cone, and a cone block is fixedly installed on the upper surface of the cylinder.
[0006] Preferably, a rotating motor is fixedly mounted on the lower surface of the grinding box, and the end of the output shaft of the rotating motor is fixedly connected to the end of the rotating shaft.
[0007] Preferably, an arc-shaped pressing plate is fixedly mounted on the outer surface of the cylinder, and there are four arc-shaped pressing plates in total, and the four arc-shaped pressing plates are fixedly mounted on the outer surface of the cylinder in an annular array at equal intervals.
[0008] Preferably, an annular groove is provided on the outer surface of the cylinder, and a fixed block is fixedly installed on the inner wall of the grinding box. There are four fixed blocks in total, and the four fixed blocks are fixedly installed in the grinding box in an annular array at equal distances, and the fixed block is partially located inside the annular groove.
[0009] Preferably, a striking plate is fixedly mounted on the upper surface of the conical block, and there are four striking plates in total, and the four striking plates are equidistantly mounted on the upper surface of the conical block in a circular array.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model achieves the effect of improving the uniformity of cement fineness after grinding and improving the quality of cement grinding by arranging grinding rollers, grinding cylinders and grinding cones. When in use, cement clinker enters the grinding box from the feed hopper, is initially ground by two grinding rollers, and then enters the gap between the grinding cone and the grinding cylinder to be ground again. The two grindings improve the quality of cement grinding.
[0012] 2. The utility model achieves the effect of facilitating the cement to enter the gap between the grinding roller and the grinding cylinder by arranging the conical block and the striking plate. The cement ground by the grinding roller is dispersed under the impact of the striking plate, and the dispersed cement falls evenly into the gap between the grinding cone and the grinding cylinder under the guidance of the conical block. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;
[0015] Figure 3 It is a schematic diagram of the partial main structure of the grinding cone of the utility model.
[0016] Figure numerals: 1, feed hopper; 2, grinding roller; 3, grinding box; 4, grinding cone; 5, grinding cylinder; 6, rotating shaft; 7, rotating motor; 8, discharge pipe; 9, cone block; 10, cylinder; 11, fixed block; 12, arc pressure plate; 13, striking plate; 14, annular groove. DETAILED DESCRIPTION
[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] Embodiment 1
[0019] like Figures 1 to 3As shown, the utility model proposes a cement grinding equipment, including grinding rollers 2, a grinding box 3, a grinding cone 4 and a grinding cylinder 5. The grinding rollers 2 are symmetrically rotatably installed at the positions on both sides of the upper surface of the grinding box 3. The two grinding rollers 2 perform preliminary grinding on the cement clinker entering the grinding box 3. A feed hopper 1 is fixedly installed on the upper surface of the grinding box 3. The cement clinker enters the grinding box 3 from the feed hopper 1. A grinding cone 4 is rotatably installed at the bottom axis position of the inner wall of the grinding box 3 through a rotating shaft 6. A rotating motor 7 is fixedly installed on the lower surface of the grinding box 3. The end of the output shaft of the rotating motor 7 is fixedly connected to the end of the rotating shaft 6. Next, the rotating motor 7 drives the grinding cone 4 to rotate through the rotating shaft 6. A grinding cylinder 5 is fixedly installed inside the grinding box 3, and the grinding cone 4 is located inside the grinding cylinder 5. The gap between the outer surface of the grinding cone 4 and the inner wall of the grinding cylinder 5 gradually decreases from top to bottom. The cement clinker after preliminary grinding falls into the gap between the grinding cone 4 and the grinding cylinder 5 and is ground by the grinding cone 4 and the grinding cylinder 5 to improve the grinding quality of the cement clinker. A discharge pipe 8 is fixedly connected to the lower surface of the grinding cylinder 5, and the end of the discharge pipe 8 is located outside the grinding box 3. A cylinder 10 is fixedly installed on the upper surface of the grinding cone 4, and a cone block 9 is fixedly installed on the upper surface of the cylinder 10.
[0020] When the utility model is in use, cement clinker enters the grinding box 3 from the feed hopper 1, is initially ground by two grinding rollers 2, and then enters the gap between the grinding cone 4 and the grinding cylinder 5 to be ground again. The two grindings improve the cement grinding quality.
[0021] Embodiment 2
[0022] like Figures 1 to 3 As shown, a cement grinding device proposed by the utility model, compared with the first embodiment, this embodiment also includes an arc-shaped pressing plate 12 fixedly installed on the outer surface of the cylinder 10, and a total of four arc-shaped pressing plates 12 are provided, and the four arc-shaped pressing plates 12 are fixedly installed on the outer surface of the cylinder 10 in a circular array at equal intervals, and the arc-shaped pressing plate 12 is partially located in the gap between the grinding cone 4 and the grinding cylinder 5. During the rotation of the arc-shaped pressing plate 12, the cement clinker in the gap can be pressed down, which is beneficial to the re-grinding of the cement clinker. An annular groove 14 is provided on the surface, and a fixed block 11 is fixedly installed on the inner wall of the grinding box 3. There are four fixed blocks 11 in total, and the four fixed blocks 11 are fixedly installed in the grinding box 3 in an annular array at equal distances. Part of the fixed block 11 is located in the annular groove 14. The arrangement of the fixed block 11 and the annular groove 14 can improve the stability of the grinding cone 4 during rotation. A striking plate 13 is fixedly installed on the upper surface of the conical block 9. There are four striking plates 13 in total, and the four striking plates 13 are installed in a annular array at equal distances on the upper surface of the conical block 9.
[0023] In this embodiment, the cement ground by the grinding roller 2 is dispersed under the impact of the impact plate 13, and the dispersed cement falls evenly into the gap between the grinding cone 4 and the grinding cylinder 5 under the guidance of the conical block 9.
[0024] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A cement grinding device, comprising a grinding roller (2), a grinding box (3), a grinding cone (4) and a grinding cylinder (5), characterized in that: Grinding rollers (2) are symmetrically rotatably mounted at positions near both sides of the upper surface of the grinding box (3); a feed hopper (1) is fixedly mounted on the upper surface of the grinding box (3); a grinding cone (4) is rotatably mounted at the bottom axis position of the inner wall of the grinding box (3) via a rotating shaft (6); a grinding cylinder (5) is fixedly mounted inside the grinding box (3), and the grinding cone (4) is located inside the grinding cylinder (5); a discharge pipe (8) is fixedly connected to the lower surface of the grinding cylinder (5); a cylinder (10) is fixedly mounted on the upper surface of the grinding cone (4); and a conical block (9) is fixedly mounted on the upper surface of the cylinder (10).
2. A cement grinding equipment according to claim 1, characterized in that: A rotating motor (7) is fixedly mounted on the lower surface of the grinding box (3), and the end of the output shaft of the rotating motor (7) is fixedly connected to the end of the rotating shaft (6).
3. A cement grinding equipment according to claim 1, characterized in that: An arc-shaped pressure plate (12) is fixedly mounted on the outer surface of the cylinder (10), and there are four arc-shaped pressure plates (12) in total. The four arc-shaped pressure plates (12) are fixedly mounted on the outer surface of the cylinder (10) in an annular array at equal distances.
4. A cement grinding equipment according to claim 1, characterized in that: An annular groove (14) is provided on the outer surface of the cylinder (10), and a fixed block (11) is fixedly installed on the inner wall of the grinding box (3). There are four fixed blocks (11) in total, and the four fixed blocks (11) are fixedly installed in the grinding box (3) in an annular array at equal distances, and a portion of the fixed block (11) is located inside the annular groove (14).
5. A cement grinding equipment according to claim 1, characterized in that: A striking plate (13) is fixedly mounted on the upper surface of the conical block (9), and a total of four striking plates (13) are provided. The four striking plates (13) are equidistantly mounted on the upper surface of the conical block (9) in a circular array.