Raw material screening device for cement product manufacturing
By designing a combined structure of screening components and receiving frames, multiple screenings of cement product raw materials were achieved, solving the dust problem, protecting the health of operators, and facilitating the collection and cleaning of raw materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BAOGE BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
AI Technical Summary
During the screening of raw materials for cement products, dust is generated when screening materials with smaller particle sizes, which can affect the health of operators.
A raw material screening device for cement product manufacturing was designed. It adopts a combination structure of screening components and receiving frame. By moving the frame and sealing plate up and down, the screen is used for multiple screenings to avoid dust leakage.
It effectively prevents dust leakage during the screening process, protects the health of operators, and facilitates the collection of raw materials and the cleaning of impurities after screening.
Smart Images
Figure CN224405743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw material screening technology for cement products, specifically a raw material screening device for cement product manufacturing. Background Technology
[0002] The raw materials used in cement production include limestone, sandstone, silicate mineral iron powder, and some slag. After cement is mixed with water, it forms a paste that can harden in air or in water and can firmly bind materials such as sand and stone together.
[0003] For example, a reciprocating screening device for raw materials in cement product manufacturing, disclosed in CN221133041U, includes a fixed base, a support rod at the top of the fixed base, a top panel at the top of the four support rods, a drive motor at the top of the fixed base, and an eccentric wheel on one side of the drive motor. This invention, by incorporating a screening screen, a drive motor, an eccentric wheel, and a connecting rod, uses the drive motor to rotate the eccentric wheel, which in turn generates a reciprocating motion of the screen box via the connecting rod. Utilizing the inclination angle of the screening screen and the weight of the material, the device achieves the purpose of screening the material. An auxiliary rod primarily assists in the reciprocating oscillation of the screen box. After cement products enter the screen box, they are screened by the screening screen. Smaller raw materials fall to the bottom first, with larger particles appearing towards the bottom, thus separating the raw materials into different sizes for collection, facilitating the production of cement products.
[0004] The aforementioned patent proposes that by setting up a screening screen, a drive motor, an eccentric wheel, and a connecting rod, the drive motor drives the eccentric wheel to rotate, and the connecting rod converts the rotation of the eccentric wheel into the reciprocating motion of the reciprocating screen box. By utilizing the inclination angle of the screening screen and the weight of the material itself, the purpose of screening the material is achieved. However, in actual use, before cement products are manufactured, raw materials of various particle sizes are screened. Because the screening frame is not dustproofed, the screening of raw materials with smaller particle sizes will generate dust. If the dust is not treated, it will affect the health of the operators.
[0005] Therefore, we propose a raw material screening device for cement product manufacturing to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this invention is to provide a raw material screening device for cement product manufacturing, so as to solve the problem of dust generation when screening raw materials with small particle size as mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a raw material screening device for cement product manufacturing, comprising a screening component and a receiving frame on one side of the screening component. The screening component includes a vertical frame and a moving trough opened at the rear end of the vertical frame. A feeding pipe is slidably installed inside the moving trough. A collecting frame is installed at one end of the feeding pipe. Connecting strips are installed on both sides of one end of the collecting frame. The connecting strips are installed at the rear end of the vertical frame. A screw conveyor is installed on one side of the collecting frame and at the rear end where the vertical frame is installed. A discharge frame is installed at one end of the screw conveyor. A driving component is installed inside the vertical frame and above the moving trough. A handle is installed on the outside of the receiving frame.
[0008] The inner walls of the upright frame are provided with positioning grooves on both sides. A movable frame is slidably installed inside the upright frame and below the driving component. A connecting frame is installed at the bottom of the movable frame. A lower connecting frame is installed at the bottom of the connecting frame. A connecting frame is installed at the bottom of the lower connecting frame. A connecting plate is installed on the outside of the connecting frame and the connecting frame. The connecting plate is slidably installed inside the positioning groove. An inner groove is provided on the inside of the connecting frame and the connecting frame.
[0009] The receiving frame is equipped with a sealing plate inside. On one side of the sealing plate and inside the receiving frame, U-shaped inserts A and B are installed. Screens are installed inside U-shaped inserts A and B.
[0010] Preferably, the feed tube includes an L-shaped transfer tube and a limiting ring installed on the outer surface of the bottom end of the L-shaped transfer tube, and a limiting groove is formed on the inner wall of the moving groove.
[0011] Preferably, a sealing ring is installed at the bottom of the collection frame and on the outer surface of the L-shaped transfer tube, and an inner transfer plate is installed through the top of the L-shaped transfer tube, the inner transfer plate being slidably installed inside the collection frame.
[0012] Preferably, a compression spring is installed at the bottom of the positioning groove, and the top of the compression spring is installed at the bottom of the connecting plate. Side grooves are provided on both sides of the inner wall of the receiving frame. Sliding blocks are installed on both sides of the U-shaped insert frame A and U-shaped insert frame B, and the sliding blocks are slidably installed inside the side grooves.
[0013] Preferably, a base plate is installed inside the receiving frame and at the lower end of the sealing plate, a collection frame is installed at the top of the base plate, a moving wheel is installed at the bottom of the base plate, and a bottom groove is opened at the bottom of the upright frame.
[0014] Preferably, the driving component includes a motor installed on the outside of the frame, a rotating shaft installed at the output end of the motor, and cams installed on both sides of the outer surface of the rotating shaft.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The present invention discloses a raw material screening device for cement product manufacturing. When the moving frame and the sealing plate move up and down, the inner moving plate moves up and down inside the collection frame. The raw material inside the collection frame is discharged into the moving frame through the L-shaped transfer pipe. The raw material is screened by the screen installed inside the U-shaped insert frame A. The raw material falling into the top of the screen inside the U-shaped insert frame B is screened again. The screened raw material is discharged into the collection frame. The components of the upright frame and the collection frame will prevent the dust generated during screening from drifting out of the device.
[0017] 2. The present invention discloses a raw material screening device for cement product manufacturing. After screening, the operator can hold the handle and pull the receiving frame out from one side of the vertical frame. The bottom plate is moved out from the bottom inside the vertical frame. The bottom plate is used to pull the collection frame out from the inside of the vertical frame. The collection frame containing the screened raw material can be taken out separately. The operator can clean the impurities inside the U-shaped insert frame A and U-shaped insert frame B. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the screening component and the driving component of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the feed tube of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the receiving frame of this utility model.
[0022] In the diagram: 1. Screw conveyor; 2. Discharge frame; 3. Collection frame; 4. Screening component; 41. Vertical frame; 411. Positioning groove; 412. Connecting plate; 413. Compression spring; 414. Bottom groove; 42. Moving frame; 43. Connecting frame; 44. Lower connecting frame; 45. Connecting frame; 46. Inner slot; 47. Moving groove; 48. Limiting groove; 49. Feeding pipe; 491. L-shaped moving pipe; 492. Sealing ring; 493. Inner moving plate; 494. Limiting ring; 5. Receiving frame; 51. Sealing plate; 52. U-shaped insert frame A; 53. U-shaped insert frame B; 54. Bottom plate; 55. Moving wheel; 56. Collection frame; 57. Side groove; 58. Sliding block; 59. Screen; 6. Handle; 7. Connecting strip; 8. Drive component; 81. Motor; 82. Rotating shaft; 83. Cam. Detailed Implementation
[0023] 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.
[0024] Example 1: Please refer to Figures 1-4 A raw material screening device for cement product manufacturing includes a screening component 4 and a receiving frame 5 on one side of the screening component 4. The screening component 4 includes a vertical frame 41 and a moving trough 47 opened at the rear end of the vertical frame 41. A feed pipe 49 is slidably installed inside the moving trough 47. A collection frame 3 is installed at one end of the feed pipe 49. Connecting strips 7 are installed on both sides of one end of the collection frame 3. The connecting strips 7 are installed at the rear end of the vertical frame 41. A screw conveyor 1 is installed on one side of the collection frame 3 and at the rear end where the vertical frame 41 is installed. A discharge frame 2 is installed at one end of the screw conveyor 1. A driving component 8 is installed inside the vertical frame 41 and above the moving trough 47. A handle 6 is installed on the outside of the receiving frame 5.
[0025] Positioning grooves 411 are provided on both sides of the inner wall of the upright frame 41. A movable frame 42 is slidably installed inside the upright frame 41 and below the driving component 8. A connecting frame 43 is installed at the bottom of the movable frame 42. A lower connecting frame 44 is installed at the bottom of the connecting frame 43. A connecting frame 45 is installed at the bottom of the lower connecting frame 44. A connecting plate 412 is installed on the outside of the connecting frame 43 and the connecting frame 45. The connecting plate 412 is slidably installed inside the positioning grooves 411. An inner groove 46 is provided on the inner side of the connecting frame 43 and the connecting frame 45.
[0026] The feed tube 49 includes an L-shaped transfer tube 491 and a limiting ring 494 installed on the outer surface of the bottom end of the L-shaped transfer tube 491. A limiting groove 48 is formed in the inner wall of the moving groove 47, and the limiting ring 494 is slidably installed inside the limiting groove 48.
[0027] A sealing ring 492 is installed at the bottom of the collection frame 3 and on the outer surface of the L-shaped transfer tube 491. An inner transfer plate 493 is installed through the top of the L-shaped transfer tube 491. The inner transfer plate 493 is slidably installed inside the collection frame 3. The moving inner transfer plate 493 is used to vibrate and discharge the raw material.
[0028] A compression spring 413 is installed at the bottom of the positioning groove 411. The top of the compression spring 413 is installed at the bottom of the connecting plate 412. Side grooves 57 are opened on both sides of the inner wall of the receiving frame 5. Sliding blocks 58 are installed on both sides of the U-shaped insert frame A52 and U-shaped insert frame B53. The sliding blocks 58 are slidably installed inside the side grooves 57. The compression spring 413 is used to push back the moving frame 42 and the sealing plate 51.
[0029] Inside the receiving frame 5, a base plate 54 is installed at the lower end of the sealing plate 51. A collection frame 56 is installed at the top of the base plate 54. A moving wheel 55 is installed at the bottom of the base plate 54. A bottom groove 414 is opened at the bottom of the upright frame 41. The position of the moving wheel 55 is aligned with the position of the moving wheel 55.
[0030] The driving component 8 includes a motor 81 installed on the outside of the frame 41. A rotating shaft 82 is installed at the output end of the motor 81. Cams 83 are installed on both sides of the outer surface of the rotating shaft 82. The rotating cams 83 push the moving frame 42 downward.
[0031] In this embodiment: Raw materials are fed into the discharge frame 2 and transported to the collection frame 3 by the screw conveyor 1. The raw materials fall to the top of the inner moving plate 493. The motor 81 operates, and the rotating shaft 82 drives the cam 83 to rotate. During the process of the long end of the cam 83 contacting the top of the moving frame 42, the moving frame 42 will be pushed to move downward. Since one side of the bottom end of the L-shaped transfer tube 491 passes through the rear end of the moving frame 42, the moving frame 42 causes the L-shaped transfer tube 491 to move. The limiting ring 494 set on the outer surface of the L-shaped transfer tube 491 moves in the limiting groove 48. When the L-shaped transfer tube 491 moves downward, one end of the L-shaped transfer tube 491 moves downward inside the sealing ring 492, thereby driving the inner moving plate 493 to move downward inside the collection frame 3. Since the U-shaped insert frame A52 and the connecting frame 43 with the inner slot 46 are respectively inserted into the connecting frame 43 and the connecting frame 45, the short end of the cam 83... During the contact with the top of the moving frame 42, the compression spring 413 uses its own rebound force to move the upper connecting plate 412, the connecting frame 43 and the connecting frame 45 upward inside between the upright frame 41 and the receiving frame 5. The sliding blocks 58 installed on both sides of the U-shaped insert frame A52 and the U-shaped insert frame B53 move upward inside the side groove 57. The L-shaped transfer tube 491 drives the inner transfer plate 493 to move upward inside the collection frame 3. As the rotating shaft 82 rotates, the moving frame 42 and the inner transfer plate 493 move up and down at the same time. The raw material inside the collection frame 3 is discharged into the interior of the moving frame 42 through the L-shaped transfer tube 491. The raw material is screened by the screen 59 installed inside the U-shaped insert frame A52. The raw material falling into the top of the screen 59 inside the U-shaped insert frame B53 is screened again. The screened raw material is discharged into the interior of the collection frame 56. The components of the upright frame 41 and the receiving frame 5 will prevent the dust generated by screening from drifting out of the device and protect the operators.
[0032] Example 2: This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 2-4The receiving frame 5 has a sealing plate 51 installed inside. On one side of the sealing plate 51 and inside the receiving frame 5, there are U-shaped insert frames A52 and B53. Screens 59 are installed inside the U-shaped insert frames A52 and B53. The number of mesh openings of the screen 59 inside the U-shaped insert frame A52 is less than the number of mesh openings of the screen 59 inside the U-shaped insert frame B53.
[0033] In this embodiment: After screening, the operator can hold the handle 6 and pull the receiving frame 5 out from one side of the upright frame 41. The U-shaped insert frame A52 and U-shaped insert frame B53 are moved out from the inside of the inner slot 46. The moving wheel 55 moves inside the bottom groove 414. The bottom plate 54 is moved out from the bottom inside the upright frame 41. The bottom plate 54 is used to pull the collection frame 56 out from the inside of the upright frame 41. The collection frame 56 containing the screened raw material can be taken out separately. The operator can clean the impurities on the screen 59 inside the U-shaped insert frame A52 and U-shaped insert frame B53. When screening other raw materials, the receiving frame 5 will be pushed to one side of the upright frame 41. The U-shaped insert frame A52 and U-shaped insert frame B53 are inserted into the inside of the inner slot 46. The moving frame 42 contacts the sealing plate 51.
[0034] Working principle: When the moving frame 42 and the sealing plate 51 move up and down, the inner moving plate 493 moves up and down inside the collecting frame 3. The raw material inside the collecting frame 3 is discharged into the moving frame 42 through the L-shaped transfer pipe 491. The raw material is screened by the screen 59 installed inside the U-shaped insert frame A52. The raw material falling into the top of the screen 59 inside the U-shaped insert frame B53 is screened again. The screened raw material is discharged into the collecting frame 56. The components of the upright frame 41 and the collecting frame 5 will prevent the dust generated by screening from drifting out of the device.
[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A raw material screening device for cement product manufacturing, comprising a screening component (4) and a receiving frame (5) on one side of the screening component (4), characterized in that: The screening component (4) includes a vertical frame (41) and a moving trough (47) opened at the rear end of the vertical frame (41). A feeding pipe (49) is slidably installed inside the moving trough (47). A collecting frame (3) is installed at one end of the feeding pipe (49). A connecting strip (7) is installed on both sides of one end of the collecting frame (3). The connecting strip (7) is installed at the rear end of the vertical frame (41). A screw conveyor (1) is installed on one side of the collecting frame (3) and at the rear end where the vertical frame (41) is installed. A discharge frame (2) is installed at one end of the screw conveyor (1). A driving component (8) is installed inside the vertical frame (41) and above the moving trough (47). A handle (6) is installed on the outside of the receiving frame (5). The inner walls of the upright frame (41) are provided with positioning grooves (411) on both sides. A movable frame (42) is slidably installed inside the upright frame (41) and below the driving component (8). A connecting frame (43) is installed at the bottom of the movable frame (42). A lower connecting frame (44) is installed at the bottom of the connecting frame (43). A connecting frame (45) is installed at the bottom of the lower connecting frame (44). A connecting plate (412) is installed on the outside of the connecting frame (43) and the connecting frame (45). The connecting plate (412) is slidably installed inside the positioning groove (411). An inner groove (46) is provided on the inner side of the connecting frame (43) and the connecting frame (45). The receiving frame (5) is equipped with a sealing plate (51) inside. On one side of the sealing plate (51) and inside the receiving frame (5), U-shaped insert A (52) and U-shaped insert B (53) are installed. Screens (59) are installed inside the U-shaped insert A (52) and U-shaped insert B (53).
2. The raw material screening device for cement product manufacturing according to claim 1, characterized in that: The feed tube (49) includes an L-shaped transfer tube (491) and a limiting ring (494) installed on the outer surface of the bottom end of the L-shaped transfer tube (491). A limiting groove (48) is provided on the inner wall of the moving groove (47).
3. The raw material screening device for cement product manufacturing according to claim 2, characterized in that: A sealing ring (492) is installed at the bottom of the collection frame (3) and on the outer surface of the L-shaped transfer tube (491). An inner transfer plate (493) is installed through the top of the L-shaped transfer tube (491) and is slidably installed inside the collection frame (3).
4. The raw material screening device for cement product manufacturing according to claim 1, characterized in that: A compression spring (413) is installed at the bottom of the positioning groove (411), and the top of the compression spring (413) is installed at the bottom of the connecting plate (412). Side grooves (57) are opened on both sides of the inner wall of the receiving frame (5). Sliding blocks (58) are installed on both sides of the U-shaped insert frame A (52) and the U-shaped insert frame B (53). The sliding blocks (58) are slidably installed inside the side grooves (57).
5. The raw material screening device for cement product manufacturing according to claim 4, characterized in that: Inside the receiving frame (5) and at the lower end of the sealing plate (51), a bottom plate (54) is installed. A collection frame (56) is installed at the top of the bottom plate (54). A moving wheel (55) is installed at the bottom of the bottom plate (54). A bottom groove (414) is opened at the bottom of the upright frame (41).
6. The raw material screening device for cement product manufacturing according to claim 5, characterized in that: The drive component (8) includes a motor (81) installed on the outside of the frame (41), a rotating shaft (82) is installed at the output end of the motor (81), and cams (83) are installed on both sides of the outer surface of the rotating shaft (82).