Raw material grading and screening conveyor device
By designing a screening method that combines horizontal and inclined states, the problem of insufficient screening caused by screen inclination in existing technologies has been solved, achieving more thorough raw material screening and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 曲阳金隅水泥有限公司
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-03
AI Technical Summary
In existing cement raw material screening devices, the screen is tilted throughout, causing the raw material to fall too quickly and resulting in insufficient screening.
A raw material grading and screening conveying device was designed. By combining screening in a horizontal state and screening in an inclined state, the screening time is extended, and continuous production is achieved through a material distribution mechanism.
It enables more thorough raw material screening, extends screening time, improves screening efficiency, and supports continuous production.
Smart Images
Figure CN224443703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw material screening technology, and in particular to a raw material grading, screening and conveying device. Background Technology
[0002] In the existing scheme, cement raw materials are directly pushed onto the conveyor belt by a loader. The raw materials are crushed by a crusher without separating the particle size. However, some small particles do not need to be crushed. Sending all of them to the crusher will affect the crushing efficiency. Therefore, it is best to screen the raw materials first.
[0003] Patent application number 202420022480.0 discloses a cement raw material screening device. Its technical solution includes a feed pipe, a vibrating plate, and a main body box. The feed pipe is installed on one side of the upper end of the main body box and is connected to the main body box. A feed hopper is installed at the upper end of the feed pipe. A rotating shaft is rotatably installed inside the feed pipe, and an array of guide plates is installed on the rotating shaft. A support plate is installed inside the main body box. A first spring is installed at the upper end of the support plate, and a screen is installed at the upper end of the first spring. A first vibrating motor is installed at the lower end of the screen. The vibrating plate is rotatably installed on the inner wall of the main body box. An electromagnet is embedded in the upper end of the vibrating plate, and a second vibrating motor is installed at the lower end of the vibrating plate. A second spring is installed on the inner wall of the bottom of the main body box and is connected to the lower end of the vibrating plate. The screen is tilted throughout, which causes the raw material to fall too quickly, resulting in insufficient screening. Summary of the Invention
[0004] In view of this, the purpose of this utility model is to propose a raw material grading and screening conveying device to solve the problem that the current screen is set at an angle throughout the process, which causes the raw materials to fall too quickly and result in insufficient screening.
[0005] Based on the above objectives, this utility model provides a raw material grading and screening conveying device, comprising: a screening mechanism, the screening mechanism including a housing, the top of the housing having a feed inlet, a first discharge outlet on one side of the housing, a first support member disposed on the inner wall of the housing, a first spring disposed on the top of the first support member, a connector disposed on the top of the first spring, a screen hinged to one end of the connector, a vibration motor disposed at the bottom of the screen, a first drive mechanism disposed below the screen for driving the screen to rotate, a second support member slidably disposed on the rear side wall of the housing, a second spring disposed on the top of the second support member, a third support member disposed on the top of the second spring, a first electric cylinder disposed on one side of the second support member, and a fourth support member disposed at the first discharge outlet, wherein when the screen loses the support of the third support member, one end of the screen falls onto the fourth support member and is tilted.
[0006] Optionally, the first driving mechanism includes a second electric cylinder disposed inside the housing, with a roller rotatably connected to the top of the second electric cylinder, and a strip guide rail provided at the bottom of the screen, the roller being able to roll on the guide rail.
[0007] Optionally, the top of the fourth support member is provided with an elastic pad.
[0008] Optionally, the top of the connector is provided with an inclined plate.
[0009] Optionally, a guide plate is inclinedly arranged below the screen, and a second discharge port is provided on one side of the box body, with the lower end of the guide plate extending to the second discharge port.
[0010] Optionally, the screening mechanism is provided in two sets, and a material distribution mechanism is provided above the two sets of screening mechanisms. The material distribution mechanism is used to intermittently feed material to the two sets of screening mechanisms. The material distribution mechanism includes a conveyor belt, a distributor located below one end of the conveyor belt, and the distributor has two guide pipes that are respectively connected to the two feed inlets. A baffle is rotatably connected to the middle of the distributor, and the baffle is driven by a second drive mechanism. The second drive mechanism includes a drive motor, a reducer located at one end of the motor, and one end of the baffle is driven by the reducer. When the baffle is in the first position, the left guide pipe is open, and the baffle seals the right guide pipe. The raw material falls from the conveyor belt onto the baffle, and then falls from the baffle into the screening mechanism on the left for screening. When the predetermined quantity is reached, the drive reducer works, thereby driving the baffle to rotate to the second position. At this time, the right guide pipe is opened, and the baffle seals the left guide pipe. The raw material falls from the conveyor belt onto the baffle, and then falls from the baffle into the screening mechanism on the right for screening. This cycle is repeated to achieve continuous production.
[0011] When screening raw materials using this device, the first electric cylinder first moves the second support member to below the screen, thereby causing the third support member to move below the screen to support it, making the screen horizontal. Then, the raw material is added to the screen through the feed inlet, and then the screen is screened by vibration of the vibrating motor in the horizontal state. When the predetermined time is reached, the first drive mechanism first lifts one end of the screen, then the first electric cylinder shortens, driving the third support member to be removed from below the screen. Then, the first drive mechanism no longer supports the screen, and one end of the screen falls onto the fourth support member in an inclined position, facilitating the discharge of the screened raw material from the first discharge outlet. After discharge, the first drive mechanism supports the screen again, and then the third support member moves back below the screen to perform the next screening operation.
[0012] As can be seen from the above, this device can perform screening in a horizontal state, which extends the screening time of raw materials and makes the screening of raw materials more thorough. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the screening mechanism according to an embodiment of the present invention;
[0015] Figure 2 This is a schematic diagram of the material dispensing mechanism according to an embodiment of the present invention;
[0016] Figure 3 for Figure 2 Side view of the middle baffle.
[0017] The numbers on the map are:
[0018] 1. Housing; 2. Feed inlet; 3. First discharge outlet; 4. First support component; 5. First spring; 6. Reducer; 7. Connector; 8. Screen; 9. Vibrating motor; 10. Second support component; 11. Second spring; 12. Third support component; 13. Fourth support component; 14. Second electric cylinder; 15. Roller; 16. Guide rail; 17. Inclined plate; 18. Guide plate; 19. Second discharge outlet; 20. Conveyor belt; 21. Distributor; 22. Guide pipe; 23. Baffle; 24. Drive motor. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0021] like Figure 1 As shown, the raw material grading and screening conveying device includes: a screening mechanism, the screening mechanism including a box 1, a feed inlet 2 at the top of the box 1, a first discharge outlet 3 on one side of the box 1, a first support member 4 disposed on the inner wall of the box 1, a first spring 5 disposed on the top of the first support member 4, a connector 7 disposed on the top of the first spring 5, a screen 8 hinged to one end of the connector 7, a vibration motor 9 disposed at the bottom of the screen 8, a first drive mechanism disposed below the screen 8 for driving the screen 8 to rotate, a second support member 10 slidably disposed on the rear side wall of the box 1, a second spring 11 disposed on the top of the second support member 10, a third support member 12 disposed on the top of the second spring 11, a first electric cylinder disposed on one side of the second support member 10, and a fourth support member 13 disposed at the first discharge outlet 3. When the screen 8 loses the support of the third support member 12, one end of the screen 8 falls onto the fourth support member 13 and is tilted.
[0022] When screening raw materials using this device, the first electric cylinder first moves the second support member 10 to below the screen 8, thereby causing the third support member 12 to move below the screen 8 to support it, making the screen 8 horizontal. Then, the raw material is added to the screen 8 through the feed port 2, and then the screen is screened by vibration of the vibrating motor in the horizontal state. When the predetermined time is reached, the first drive mechanism first lifts one end of the screen 8, and then the first electric cylinder shortens, driving the third support member 12 to be removed from below the screen 8. Then, the first drive mechanism no longer supports the screen 8, and one end of the screen 8 falls onto the fourth support member 13 and is tilted, which facilitates the discharge of the screened raw material from the first discharge port 3. After discharge, the first drive mechanism supports the screen 8 again, and then the third support member 12 moves back below the screen 8 to perform the next screening operation.
[0023] As can be seen from the above, this device can perform screening in a horizontal state, which extends the screening time of raw materials and makes the screening of raw materials more thorough.
[0024] like Figure 1 As shown, in some embodiments, the first driving mechanism includes a second electric cylinder 14 disposed within the housing 1. A roller 15 is rotatably connected to the top of the second electric cylinder 14, and a strip guide rail 16 is provided at the bottom of the screen 8. The roller 15 can roll on the guide rail 16. During operation, by extending and retracting the second electric cylinder 14, the roller 15 rolls on the guide rail 16, thereby driving one end of the screen 8 to rotate, thus lifting the screen 8 from its tilted state.
[0025] In some embodiments, the top of the fourth support member 13 is provided with an elastic pad, which can buffer the vibration of the screen 8 when it is tilted.
[0026] like Figure 1 As shown, in some embodiments, the top of the connector 7 is provided with an inclined plate 17. The design of the inclined plate 17 prevents raw materials from accumulating above the connector 7.
[0027] like Figure 1 As shown, in some embodiments, a guide plate 18 is inclinedly arranged below the screen 8, and a second discharge port 19 is provided on one side of the housing 1. The lower end of the guide plate 18 extends to the second discharge port 19. The screened small particle raw materials are discharged through the guide plate 18 and the second discharge port 19.
[0028] Since screen 8 is a horizontal screen, it cannot be continuously fed. In order to achieve continuous production, such as Figures 2-3 As shown, in some embodiments, the screening mechanism is provided in two sets, and a material distribution mechanism is provided above the two sets of screening mechanisms. The material distribution mechanism is used to intermittently feed material to the two sets of screening mechanisms. Optionally, the material distribution mechanism includes a conveyor belt 20 and a material distributor 21 disposed below one end of the conveyor belt 20. The material distributor 21 has two guide pipes 22, which are respectively connected to two feed inlets 2. A baffle 23 is rotatably connected to the middle position of the material distributor 21. The baffle 23 is drivenly connected to a second drive mechanism. The second drive mechanism includes a drive motor 24 and a reducer 6 disposed at one end of the motor. One end of the baffle 23 is drivenly connected to the reducer 6.
[0029] When the baffle 23 is in the first position, the left guide pipe 22 is open, and the baffle 23 seals the right guide pipe 22. The raw material falls from the conveyor belt 20 onto the baffle 23, and then falls from the baffle 23 into the screening mechanism on the left for screening. When the predetermined amount is reached, the drive reducer 6 is activated, thereby driving the baffle 23 to rotate to the second position. At this time, the right guide pipe 22 is opened, and the baffle 23 seals the left guide pipe 22. The raw material falls from the conveyor belt 20 onto the baffle 23, and then falls from the baffle 23 into the screening mechanism on the right for screening. This cycle is repeated to achieve continuous production.
[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A raw material fractionating and screening conveyor, characterized by, include: The screening mechanism includes a housing (1), a feed inlet (2) at the top of the housing (1), a first discharge outlet (3) on one side of the housing (1), a first support member (4) on the inner wall of the housing (1), a first spring (5) on the top of the first support member (4), a connector (7) on the top of the first spring (5), a screen (8) hinged to one end of the connector (7), a vibration motor (9) at the bottom of the screen (8), and a device below the screen (8) for driving the screen (8). The rotating first drive mechanism, the second support member (10) slidably disposed on the rear side wall of the box (1), the second spring (11) disposed on the top of the second support member (10), the third support member (12) disposed on the top of the second spring (11), the first electric cylinder disposed on one side of the second support member (10), and the fourth support member (13) disposed at the first discharge port (3). When the screen (8) loses the support of the third support member (12), one end of the screen (8) falls onto the fourth support member (13) and is tilted.
2. The raw material fractionating and screening conveyor according to claim 1, characterized in that, The first driving mechanism includes a second electric cylinder (14) disposed inside the housing (1). A roller (15) is rotatably connected to the top of the second electric cylinder (14). A strip guide rail (16) is provided at the bottom of the screen (8). The roller (15) can roll on the guide rail (16).
3. The raw material grading and screening conveying device according to claim 1, characterized in that, The top of the fourth support member (13) is provided with an elastic pad.
4. The feedstock classifying and screening conveyor of claim 1, wherein, The top of the connector (7) is provided with an inclined plate (17).
5. The feedstock classifying and screening conveyor of claim 1, wherein, A guide plate (18) is inclinedly arranged below the screen (8), and a second discharge port (19) is provided on one side of the box (1). The lower end of the guide plate (18) extends to the second discharge port (19).
6. The feedstock classifying and screening conveyor of claim 1, wherein, The screening mechanism is provided in two sets, and a material distribution mechanism is provided above the two sets of screening mechanisms. The material distribution mechanism is used to intermittently feed the two sets of screening mechanisms.
7. The feedstock classifying and screening conveyor of claim 6, wherein, The material distribution mechanism includes a conveyor belt (20) and a distributor (21) located below one end of the conveyor belt (20). The distributor (21) has two guide pipes (22), which are respectively connected to two feed ports (2). A baffle (23) is rotatably connected to the middle of the distributor (21), and the baffle (23) is driven by a second drive mechanism.
8. The feedstock classifying and screening conveyor of claim 7, wherein, The second drive mechanism includes a drive motor (24), a reducer (6) disposed at one end of the motor, and one end of the baffle (23) is connected to the reducer (6) in a transmission connection.