Cement pre-grinding system capable of improving grinding effect
By combining the screen plate and anti-clogging rod in a coordinated design with a synchronous belt drive system, the problem of easy screen clogging in the cement pre-grinding system was solved, enabling smooth discharge of cement powder and improving the grinding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-24
AI Technical Summary
In existing cement pre-grinding systems, the screens are easily clogged by cement powder during the screening process, resulting in poor material discharge and affecting the grinding effect.
The design incorporates a screen plate and an anti-clogging rod. The screen plate is driven to swing up and down by an eccentric shaft, and drives the worm gear and worm wheel through a synchronous belt transmission system. The anti-clogging rod rotates to clear the screen holes, and works in conjunction with a vacuum cleaner to prevent blockage.
It effectively prevents screen clogging, ensures smooth discharge of cement powder, and improves grinding efficiency and system operation stability.
Smart Images
Figure CN224025238U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cement grinding technical field, concretely is a cement pregrinding system of improving grinding effect. BACKGROUND
[0002] Cement pregrinding is an important link in the cement production process, aims at through specific equipment and process, carries out preliminary grinding to material before entering ball mill etc.
[0003] The existing cement pregrinding system needs to carry out the process of screening and then grinding to cement in the process of grinding cement, this operation is to prevent that the cement primary grinding is insufficient, leads to the poor cement grinding effect, but when screening cement through the screen, the screen is easy to be blocked by cement powder, leads to the subsequent cement powder unable normal discharge.
[0004] Based on this, the cement pregrinding system of improving grinding effect is provided, which can eliminate the disadvantages of the existing device. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a cement pregrinding system of improving grinding effect to solve the shortcoming of the product in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A cement pregrinding system of improving grinding effect, first elevator, roller press, second elevator, screening machine, the first elevator is connected with roller press, the roller press is connected with second elevator, the second elevator is connected with screening machine, the screening machine is connected with roller press and powder collector respectively;
[0008] The screening machine includes sieve plate, mounting frame, connecting rod, the two mounting plates are fixedly connected on the outer wall of screening box through support, the motor is fixedly connected on the side wall of mounting plate through support, the second rotating shaft is fixedly connected on the output end of motor, the first rotating shaft is connected with the other mounting plate through bearing, the eccentric shaft is fixedly connected on the opposite end of first rotating shaft and second rotating shaft, the connecting rod is connected with eccentric shaft through bearing, the connecting plate is connected with connecting rod through pin shaft away from eccentric shaft end, the mounting frame is connected with the inner wall of screening box through pin shaft, the sieve plate is arranged in the mounting frame, the mounting frame is fixedly connected with connecting plate, and the connecting plate penetrates screening box.
[0009] On the basis of the above technical scheme, the utility model further provides the following optional technical scheme:
[0010] In an optional scheme, the inner side wall of the screening box is fixedly connected with a plurality of anti-blocking boxes, the anti-blocking boxes are located below the screen plate, the upper surface of the anti-blocking box is provided with a plurality of anti-blocking rods, and the anti-blocking rods correspond to the screen holes of the screen plate one by one.
[0011] In an optional scheme, the anti-blocking box and the anti-blocking rod are connected through a bearing, the part of the anti-blocking rod located in the anti-blocking box is fixedly connected with a worm wheel, the anti-blocking box is connected with a worm through a bearing, the adjacent two worm gears are drivingly connected through a first synchronous belt transmission member, the worm gears are engaged with a plurality of worm gears, and one of the worm gears is drivingly connected with the first rotating shaft through a second synchronous belt transmission member.
[0012] In an optional scheme, the screen plate and the mounting frame are connected through bolts.
[0013] In an optional scheme, the bottom of the screening box is provided with two discharge ports, and the screen plate is provided with a certain slope.
[0014] In an optional scheme, the first lifting machine, the second lifting machine and the screening machine are all equipped with dust collectors.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] 1、 the screen plate is matched with the plurality of anti-blocking rods below in the process of swinging up and down, the screen holes of the screen plate are dredged, the screen holes of the screen plate are prevented from being blocked by cement powder, and the subsequent powder discharge is affected.
[0017] 2、 the first rotating shaft is driven to rotate by the motor, the worm is driven to rotate by the first rotating shaft through the second synchronous belt transmission member, the plurality of worms are drivingly rotated through the first synchronous belt transmission member, the worm is driven to rotate by the worm, the plurality of anti-blocking rods are driven to rotate by the worm wheel, the anti-blocking rods are rotated, the anti-blocking effect on the screen holes of the screen plate is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structural schematic view of the utility model.
[0019] Figure 2 It is a first perspective view of the screening machine of the utility model.
[0020] Figure 3 It is a second perspective view of the screening machine of the utility model.
[0021] Figure 4 It is a structural schematic view of the anti-blocking box of the utility model.
[0022] Figure 5 It is a structural schematic view of the anti-blocking box of the utility model.
[0023] Figure 6 The utility model discloses a screening box partial section view.
[0024] Sign notes: 1 first elevator, 2 roller press, 3 second elevator, 4 screening machine, 5 dust catcher, 6 screening box, 7 sieve plate, 8 mounting frame, 9 motor, 10 mounting plate, 11 connecting rod, 12 connecting plate, 13 anti -block box, 14 guide plate, 15 anti -block rod, 16 worm, 17 first synchronous belt transmission part, 18 second synchronous belt transmission part, 19 first rotary shaft, 20 turntable, 21 eccentric shaft, 22 second rotary shaft, 23 worm wheel. DETAILED DESCRIPTION
[0025] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawing and example, the utility model is further detailed.
[0026] In one embodiment, as Figures 1-6 Illustrated, a cement pre-grinding system for improving grinding effect, including first elevator 1, roller press 2, second elevator 3, screening machine 4, first elevator 1 is connected with roller press 2, and roller press 2 is connected with second elevator 3, and second elevator 3 is connected with screening machine 4, and screening machine 4 is connected with roller press 2 and powder collector respectively;
[0027] Screening machine 4 includes sieve plate 7, mounting frame 8, connecting rod 11, and the outer wall of screening box 6 is fixedly connected with two mounting plates 10 through support, and the sidewall of mounting plate 10 is fixedly connected with motor 9 through support, and the output end of motor 9 is fixedly connected with second rotary shaft 22, and another mounting plate 10 is connected with first rotary shaft 19 through bearing, and the opposite end of first rotary shaft 19 and second rotary shaft 22 is fixedly connected with eccentric shaft 21, and eccentric shaft 21 is connected with connecting rod 11 through bearing, and the end of connecting rod 11 away from eccentric shaft 21 is connected with connecting plate 12 through pin shaft, and the inner side wall of screening box 6 is connected with mounting frame 8 through pin shaft, and mounting frame 8 is provided with sieve plate 7 in, and mounting frame 8 is fixedly connected with connecting plate 12, and connecting plate 12 penetrates screening box 6.
[0028] First, cement material is poured into first elevator 1, and through the lifting of first elevator 1, enters roller press 2, and after the cement material of grinding powder is transported into second elevator 3 through pipeline by roller press 2, enters screening box 6 through the lifting of second elevator 3;
[0029] When the cement material enters the screening box 6, the motor 9 is started, the second rotating shaft 22 is rotated by the motor 9, the eccentric shaft 21 is rotated by the second rotating shaft 22, the connecting rod 11 and the connecting plate 12 are rotated by the eccentric shaft 21, the screen plate 7 is swung up and down around the pin shaft, and the vibration of the screen plate 7 is realized. At this time, the cement powder that can pass through the screen holes of the screen plate 7 enters the next powder collector from the left discharge port, and the larger powder particles that cannot pass through the screen holes of the screen plate 7 roll into the right discharge hole and then enter the roller press 2 again to be ground until they can smoothly pass through the screen holes of the screen plate 7.
[0030] In one embodiment, a plurality of anti-blocking boxes 13 are fixedly connected to the inner side wall of the screening box 6, the anti-blocking boxes 13 are located below the screen plate 7, a plurality of anti-blocking rods 15 are arranged on the upper surface of the anti-blocking boxes 13, and the anti-blocking rods 15 correspond one-to-one to the screen holes of the screen plate 7.
[0031] When the screen plate 7 swings up and down and cooperates with the plurality of anti-blocking rods 15 below, the screen holes of the screen plate 7 are dredged, so that the cement powder does not block the screen holes of the screen plate 7 and affect the subsequent powder discharge.
[0032] In one embodiment, the anti-blocking boxes 13 and the anti-blocking rods 15 are connected through bearings, the part of the anti-blocking rods 15 located in the anti-blocking boxes 13 is fixedly connected with a plurality of worm gears 23, the anti-blocking boxes 13 are connected with a plurality of worm gears 16 through bearings, the adjacent two worm gears 16 are drivingly connected through a first synchronous belt transmission member 17, the worm gears 16 are engaged with the plurality of worm gears 23, and one of the worm gears 16 is drivingly connected with the first rotating shaft 19 through a second synchronous belt transmission member 18.
[0033] When the screen plate 7 swings up and down and cooperates with the plurality of anti-blocking rods 15 below, the screen holes of the screen plate 7 are dredged, so that the cement powder does not block the screen holes of the screen plate 7 and affect the subsequent powder discharge.
[0034] In one embodiment, the screen plate 7 and the mounting frame 8 are connected through bolts.
[0035] In one embodiment, the screening box 6 is provided with two discharge ports, and the screen plate 7 is provided with a certain slope.
[0036] In one embodiment, the first elevator 1, the second elevator 3, and the screening machine 4 are all equipped with dust collectors 5.
[0037] The above embodiment discloses a cement pre-grinding system for improving grinding effect, and the specific working principle and process are as follows:
[0038] S1: First, the cement material is poured into the first elevator 1, is lifted by the first elevator 1, enters the roller press 2, is ground by the roller press 2, is transported into the second elevator 3 through the pipeline, and enters the screening box 6 through the lifting of the second elevator 3;
[0039] S2: When the cement material enters the screening box 6, the motor 9 is started, the second rotating shaft 22 is rotated by the motor 9, the eccentric shaft 21 is rotated by the second rotating shaft 22, the eccentric shaft 21 is rotated in cooperation with the connecting rod 11 and the connecting plate 12, the screen plate 7 is swung up and down around the pin shaft, and the vibration of the screen plate 7 is realized. At this time, the cement powder that can pass through the screen hole of the screen plate 7 enters the next powder collector from the left discharge port, and the larger powder particles that cannot pass through fall from the screen plate 7 into the right discharge hole and then enter the roller mill 2 again to be ground until they can pass through the screen hole of the screen plate 7 smoothly;
[0040] S3: When the screen plate 7 swings up and down in cooperation with the plurality of anti-blocking rods 15 below, the screen hole of the screen plate 7 is dredged to avoid the cement powder from blocking the screen hole of the screen plate 7 and affecting the subsequent powder discharge;
[0041] S4: When the motor 9 rotates the first rotating shaft 19, the first rotating shaft 19 rotates the worm 16 through the second synchronous belt transmission member 18, the plurality of worm 16 rotates through the first synchronous belt transmission member 17, the worm 16 rotates the worm gear 23, and the worm gear 23 drives the plurality of anti-blocking rods 15 to rotate, thereby improving the anti-blocking effect of the screen hole of the screen plate 7.
[0042] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A cement pre-milling system for improving grinding efficiency, characterized by, Including first elevator (1), roller (2), second elevator (3), screening machine (4), the first elevator (1) is connected with roller (2), the roller (2) is connected with second elevator (3), the second elevator (3) is connected with screening machine (4), and the screening machine (4) is connected with roller (2) and powder collector respectively; The screening machine (4) includes a screen plate (7), a mounting frame (8), and a connecting rod (11), two mounting plates (10) are fixedly connected to the outer side wall of the screening box (6) through supports, a motor (9) is fixedly connected to the side wall of the mounting plate (10) through a support, a second rotating shaft (22) is fixedly connected to the output end of the motor (9), another mounting plate (10) is connected to a first rotating shaft (19) through a bearing, the first rotating shaft (19) and the second rotating shaft (22) are both fixedly connected to an eccentric shaft (21) at opposite ends, the eccentric shaft (21) is connected to the connecting rod (11) through a bearing, the connecting rod (11) is connected to a connecting plate (12) through a pin shaft at an end away from the eccentric shaft (21), the inner side wall of the screening box (6) is connected to the mounting frame (8) through a pin shaft, the mounting frame (8) is provided with the screen plate (7) inside, the mounting frame (8) is fixedly connected to the connecting plate (12), and the connecting plate (12) penetrates the screening box (6).
2. A cement pre-milling system for improved grinding efficiency as claimed in claim 1 wherein, The inner side wall of the screening box (6) is fixedly connected to a plurality of anti-blocking boxes (13), the anti-blocking boxes (13) are located below the screen plate (7), and the upper surfaces of the anti-blocking boxes (13) are provided with a plurality of anti-blocking rods (15), which correspond one-to-one to the screen holes of the screen plate (7).
3. A cement pre-milling system for improved grinding efficiency as claimed in claim 2 wherein, The anti-blocking boxes (13) and the anti-blocking rods (15) are connected through bearings, the portions of the anti-blocking rods (15) located in the anti-blocking boxes (13) are fixedly connected to worm gears (23), the anti-blocking boxes (13) are connected to worm shafts (16) through bearings, two adjacent worm shafts (16) are drivingly connected through a first synchronous belt transmission member (17), the worm shafts (16) are engaged with a plurality of worm gears (23), and one of the worm shafts (16) is drivingly connected to the first rotating shaft (19) through a second synchronous belt transmission member (18).
4. The cement pre-milling system of claim 1, wherein, The screen plate (7) and the mounting frame (8) are connected through bolts.
5. The cement pre-milling system of claim 1, wherein, The bottom of the screening box (6) is provided with two discharge ports, and the screen plate (7) is provided with a certain slope.
6. The cement pre-milling system of claim 1, wherein, The first elevator (1), the second elevator (3), and the screening machine (4) are all equipped with dust collectors (5).