A raw material multi-stage screening device for cement product processing

Abstract

The utility model discloses a raw material multistage screening device for cement product processing belongs to cement processing technical field, and its technical scheme main points include screening box, the inside of screening box is provided with quick loading and unloading multistage filter assembly, the top of screening box is provided with rotary dispersion mechanism, quick loading and unloading multistage filter assembly includes three installation track slots, and three installation track slots are respectively inclined and are opened in the inside of screening box, the filter plate in the multistage screening device of existing multistage screening device mostly is the overall structure, and the replacement maintenance is more time -consuming, and the overall processing progress is easy to influence, still mostly use simple dispersion board when cement enters screening box, and the raw material is dispersed passively through vibration, is easy to cause raw material concentration, and the dispersion is uneven, still cannot smash and scatter the raw material of caking, easy to cause the blockage of inlet, thereby influence the efficiency and quality of screening.

Description

Technical Field

[0001] This utility model relates to the field of cement processing technology, and in particular to a multi-stage screening device for raw materials used in cement product processing. Background Technology

[0002] In cement product manufacturing, the quality of raw materials has a significant impact on product performance. Raw materials that have not undergone fine processing have uneven particle size and contain many impurities, which will reduce the strength and stability of cement products. Multi-stage screening technology has emerged to address this issue. It can accurately separate raw materials according to particle size, remove impurities, and improve the purity and uniformity of raw materials, laying the foundation for the production of high-quality cement products.

[0003] The filter plates in existing multi-stage screening devices are mostly integral structures, which are time-consuming to replace and maintain, and can easily affect the overall processing progress. In addition, when cement enters the screening box, simple dispersing plates are mostly used, which passively disperse the raw materials through vibration. This can easily lead to the concentration of raw materials, uneven dispersion, and failure to break up and scatter agglomerated raw materials, which can easily cause blockage of the feed inlet, thus affecting the screening efficiency and quality.

[0004] Therefore, a multi-stage screening device for raw materials used in cement product processing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-stage screening device for raw materials in cement product processing. This device can solve the problems of existing multi-stage screening devices, where the filter plates are mostly integral structures, which are time-consuming to replace and maintain and can easily affect the overall processing progress. In addition, when cement enters the screening box, simple dispersion plates are mostly used to passively disperse the raw materials through vibration, which can easily lead to the concentration of raw materials, uneven dispersion, and failure to break up and scatter agglomerated raw materials, which can easily cause blockage of the feed inlet, thus affecting screening efficiency and quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage screening device for raw materials in cement product processing, including a screening box, wherein a quick-loading and unloading multi-stage filtration assembly is provided inside the screening box, and a rotating dispersion mechanism is provided on the top of the screening box; The quick-load and unload multi-stage filter assembly includes three mounting track slots, which are inclinedly opened inside the screening box. Filter plates with different aperture sizes are slidably arranged inside the three mounting track slots, and a handle is bolted to the side of the filter plate away from the screening box.

[0007] Preferably, the rotating dispersing mechanism includes a feed box, the bottom of which is fixedly connected to the top of the screening box.

[0008] Preferably, the inside of the feed box is provided with a plurality of first dispersing rods arranged in a front-to-back manner and a plurality of second dispersing rods arranged in a left-to-right manner.

[0009] Preferably, a plurality of dispersing heads are bolted to the surfaces of both the first and second dispersing rods.

[0010] Preferably, two pins are bolted to the top and bottom of the left and right sides of the screening box, and a baffle is bolted to the side of the pins away from the screening box.

[0011] Preferably, a clamping plate is rotatably sleeved on the surface of the pin, and a clamping spring is sleeved on the surface of the pin. The two ends of the clamping spring are in contact with the clamping plate and the baffle, respectively. The side of the clamping plate closest to the filter plate is in contact with the filter plate.

[0012] Preferably, the right side of the first dispersing rod extends to the right side of the feed box and is fitted with a first gear. A first power motor is provided on the right side of the front side of the feed box. A second gear is fitted on the output shaft of the first power motor. A first synchronous gear belt is fitted between the surfaces of several first gears and second gears. The front side of the second dispersing rod extends to the front side of the feed box and is fitted with a third gear. A second power motor is provided on the front side of the left side of the feed box. A fourth gear is fitted on the output shaft of the second power motor. A second synchronous gear belt is fitted between the surfaces of several third gears and fourth gears.

[0013] Preferably, each of the four bottom corners of the screening box is bolted with a first mounting sleeve, the top of the inner wall of the first mounting sleeve is connected with a support spring, the bottom of the support spring is connected with a second mounting sleeve, a support frame is bolted between the bottoms of the four second mounting sleeves, mounting plates are bolted to the front and rear sides of the screening box, a vibration motor is bolted to the side of the mounting plate away from the screening box, and discharge ports for corresponding areas are respectively provided on the sides and bottom of the screening box.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application enables quick loading and unloading of multi-stage filter components. The filter plates slide along the inclined mounting track groove for loading and unloading, and are quickly locked with the clamping spring and clamping plate, which greatly shortens the replacement time and significantly improves maintenance efficiency. Filter plates with different pore sizes enable three-stage grading and screening of raw materials to meet the needs of cement products for raw materials of different particle sizes. 2. This application utilizes a rotating dispersion mechanism, in which the first and second dispersion rods rotate alternately under the drive of a motor and a synchronous gear belt. The hemispherical dispersing head actively disperses agglomerated raw materials and agitates them for uniform dispersion, significantly improving dispersion uniformity, preventing the accumulation of raw materials, and greatly enhancing screening efficiency. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the multi-stage screening device for raw materials used in cement product processing according to this utility model; Figure 2 This is a schematic diagram showing the connection between the quick-assembly and disassembly multi-stage filter assembly and the screening box of this utility model; Figure 3 This is a schematic diagram showing the connection between the pressing plate and the filter plate of this utility model; Figure 4 This is a schematic diagram showing the connection between the screening box and the rotating dispersion component of this utility model; Figure 5 This is a schematic diagram showing the connection between the third gear and the second power motor of this utility model.

[0016] In the diagram, 1. Screening box; 2. Quick-release multi-stage filter assembly; 201. Mounting track groove; 202. Filter plate; 203. Pull handle; 3. Rotating dispersion mechanism; 31. Feed box; 32. First dispersion rod; 33. Second dispersion rod; 34. Dispersing head; 4. Pin shaft; 5. Baffle; 6. Pressing plate; 7. Pressing spring; 8. First gear; 9. First power motor; 10. Second gear; 11. First synchronous gear belt; 12. Third gear; 13. Second power motor; 14. Fourth gear; 15. Second synchronous gear belt; 16. First mounting sleeve; 17. Support spring; 18. Second mounting sleeve; 19. Support frame; 20. Mounting plate; 21. Vibration motor; 22. Discharge port. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5 The present invention provides the following technical solution: A multi-stage screening device for raw materials used in cement product processing includes a screening box 1, a quick-loading and unloading multi-stage filter assembly 2 inside the screening box 1, and a rotating dispersion mechanism 3 on the top of the screening box 1. The quick-load and unload multi-stage filter assembly 2 includes three mounting track slots 201. The three mounting track slots 201 are respectively inclined and opened inside the screening box 1. Filter plates 202 with different apertures are slidably arranged inside the three mounting track slots 201. A handle 203 is bolted to the side of the filter plate 202 away from the screening box 1.

[0019] In this embodiment: the screening box 1 provides a stable space for screening operations, and the quick-loading and unloading multi-stage filter assembly 2 is the core screening component. The three mounting track grooves 201 are inclined to facilitate the raw material to slide down the filter plate 202 and accelerate screening. The aperture of the filter plate 202 decreases from top to bottom, realizing the three-level classification of raw materials: "coarse screening - medium screening - fine screening", which is suitable for the needs of cement products for raw materials of different particle sizes. The handle 203 makes it easy for workers to quickly pull and unload the filter plate 202, solving the problem of cumbersome replacement of the traditional integral filter plate 202. The rotating dispersion mechanism 3 can break down and disperse the raw materials entering the screening box 1, and evenly drop them onto the screening plate. At the same time, it can also disperse the raw materials that are clumped when entering the screening box 1, ensuring the screening quality.

[0020] Specifically, such as Figure 4 As shown, the rotating dispersing mechanism 3 includes a feed box 31, the bottom of which is fixedly connected to the top of the screening box 1.

[0021] Specifically, such as Figure 4 As shown, the inside of the feed box 31 is respectively provided with a number of first dispersing rods 32 arranged in front and back and a number of second dispersing rods 33 arranged left and right.

[0022] Specifically, such as Figure 4 As shown, several dispersing heads 34 are bolted to the surfaces of the first dispersing rod 32 and the second dispersing rod 33.

[0023] In this embodiment: the raw material is centrally fed into the screening box 1 through the feed box 31; the first dispersing rod 32 and the second dispersing rod 33 are arranged in a cross shape (in a "well" shape), and the hemispherical dispersing head 34 can prevent the raw material from clumping and sticking together, and prevent the raw material from accumulating; when the first dispersing rod 32 and the second dispersing rod 33 rotate, the dispersing head 34 actively impacts the clumped raw material to disperse it. In conjunction with the "well" shaped dispersing rods, it can not only disperse the clumps, but also move the raw material, so that the raw material is quickly and evenly dispersed onto the filter plate 202. The speed of uniform dispersion can be achieved by adjusting the speed of the first power motor 9 and the second power motor 13, ensuring the subsequent screening quality and efficiency.

[0024] Specifically, such as Figure 3 , Figure 1 As shown, two pins 4 are bolted to the top and bottom of the left and right sides of the screening box 1, and a baffle 5 is bolted to the side of the pins 4 away from the screening box 1.

[0025] Specifically, such as Figure 3 As shown, a clamping plate 6 is rotatably sleeved on the surface of the pin 4, and a clamping spring 7 is sleeved on the surface of the pin 4. The two ends of the clamping spring 7 are in contact with the clamping plate 6 and the baffle 5 respectively. The side of the clamping plate 6 closest to the filter plate 202 is in contact with the filter plate 202.

[0026] In this embodiment: the two ends of the compression spring 7 are in contact with the baffle 5 and the compression plate 6 respectively, and are in a compressed state. The spring force pushes the compression plate 6 to fit tightly against the filter plate 202, preventing the filter plate 202 from loosening or shifting during the vibrating screening process. When replacing the filter plate 202, simply rotate the compression plate 6 outward to pull out the old filter plate 202 and insert the new filter plate 202. After releasing the compression plate 6, the spring automatically resets and locks, making the operation convenient and significantly shortening the replacement time.

[0027] Specifically, such as Figure 5 As shown, the right side of the first dispersing rod 32 extends to the right side of the feed box 31 and is fitted with a first gear 8. A first power motor 9 is provided on the right side of the front side of the feed box 31. A second gear 10 is fitted on the output shaft of the first power motor 9. A first synchronous gear belt 11 is fitted between the surfaces of several first gears 8 and second gears 10. The front side of the second dispersing rod 33 extends to the front side of the feed box 31 and is fitted with a third gear 12. A second power motor 13 is provided on the front side of the left side of the feed box 31. A fourth gear 14 is fitted on the output shaft of the second power motor 13. A second synchronous gear belt 15 is fitted between the surfaces of several third gears 12 and fourth gears 14.

[0028] In this embodiment: both the first power motor 9 and the second power motor 13 are variable frequency motors with adjustable speed; through synchronous gear belt transmission, multiple dispersing rods rotate synchronously to ensure uniform dispersion of raw materials; the motor speed can be adjusted according to the degree of raw material agglomeration, increasing the speed to enhance the dispersing effect when agglomeration is severe, and reducing the speed to save energy when the flowability is good.

[0029] Specifically, such as Figure 2 , Figure 3 As shown, each of the four bottom corners of the screening box 1 is bolted with a first mounting sleeve 16. The top of the inner wall of the first mounting sleeve 16 is connected to a support spring 17. The bottom of the support spring 17 is connected to a second mounting sleeve 18. A support frame 19 is bolted between the bottoms of the four second mounting sleeves 18. Mounting plates 20 are bolted to the front and rear sides of the screening box 1. A vibration motor 21 is bolted to the side of the mounting plate 20 away from the screening box 1. The sides and bottom of the screening box 1 are respectively provided with discharge ports 22 for corresponding areas.

[0030] In this embodiment: the support spring 17, together with the first mounting sleeve 16 and the second mounting sleeve 18, forms a buffer structure to reduce equipment resonance and noise when the vibration motor 21 is working; the vibration motor 21 provides the excitation force required for screening to the three-phase asynchronous vibration motor 21, accelerating the sliding and screening of raw materials on the inclined filter plate 202; the discharge ports 22 at different positions correspond to the screening products of filter plates 202 with different pore sizes.

[0031] Working principle: Raw materials are centrally fed into the screening box 1 through the feed box 31. The screening box 1 provides a stable space for screening operations. The quick-loading and unloading multi-stage filter assembly 2 is the core screening component. Three inclined mounting track grooves 201 facilitate the sliding of raw materials along the filter plate 202 to accelerate screening. The first dispersing rod 32 and the second dispersing rod 33 in the rotating dispersing mechanism 3 are arranged in a cross shape. The hemispherical dispersing head 34 on it can prevent raw materials from clumping and sticking. When the dispersing rod rotates, the dispersing head 34 actively impacts the clumped raw materials, which can not only break up the clumps, but also move the raw materials, so that the raw materials are evenly dispersed on the filter plate 202. The aperture of the filter plate 202 decreases from top to bottom, realizing three-stage grading of "coarse screening-medium screening-fine screening", which is suitable for the different particle size requirements of cement products. The compression spring 7 is in a compressed state, and the elastic force pushes the compression plate 6 to tighten. The filter plate 202 is tightly fitted to prevent it from loosening or shifting during the vibrating screening process. When replacing the filter plate 202, the clamping plate 6 can be rotated to quickly complete the loading and unloading. The first power motor 9 and the second power motor 13 are variable frequency motors, which drive multiple dispersing rods to rotate synchronously through synchronous gear belt transmission. The speed can be adjusted according to the degree of raw material agglomeration to ensure uniform dispersion of raw materials. The speed of uniform dispersion of material can also be achieved by adjusting the speed of the first power motor 9 and the second power motor 13. The support spring 17, together with the first mounting sleeve 16 and the second mounting sleeve 18, forms a buffer structure to reduce equipment resonance and noise when the vibrating motor 21 is working. The vibrating motor 21 is a three-phase asynchronous vibrating motor 21, which provides excitation force to accelerate the sliding and screening of raw materials on the inclined filter plate 202. The discharge port 22 at different positions corresponds to the screening products of filter plates 202 with different aperture sizes.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage raw material screening device for cement product processing, comprising a screening box (1), characterized in that: The screening box (1) is equipped with a quick-loading and unloading multi-stage filter assembly (2), and the top of the screening box (1) is equipped with a rotating dispersion mechanism (3). The quick-load and unload multi-stage filter assembly (2) includes three mounting track grooves (201). The three mounting track grooves (201) are respectively inclined and opened inside the screening box (1). Filter plates (202) with different apertures are slidably arranged inside the three mounting track grooves (201). A handle (203) is bolted to the side of the filter plate (202) away from the screening box (1).

2. The multi-stage raw material screening device for cement product processing according to claim 1, characterized in that: The rotating dispersion mechanism (3) includes a feed box (31), the bottom of which is fixedly connected to the top of the screening box (1).

3. The multi-stage raw material screening device for cement product processing according to claim 2, characterized in that: The feed box (31) is equipped with several first dispersing rods (32) arranged in a front-to-back manner and several second dispersing rods (33) arranged in a left-to-right manner.

4. The multi-stage screening device for raw materials in cement product processing according to claim 3, characterized in that: Several dispersing heads (34) are bolted to the surfaces of the first dispersing rod (32) and the second dispersing rod (33).

5. The multi-stage screening device for raw materials in cement product processing according to claim 1, characterized in that: Two pins (4) are bolted to the top and bottom of the left and right sides of the screening box (1), and a baffle (5) is bolted to the side of the pins (4) away from the screening box (1).

6. The multi-stage screening device for raw materials in cement product processing according to claim 5, characterized in that: The surface of the pin (4) is fitted with a pressure plate (6), and the surface of the pin (4) is fitted with a pressure spring (7). The two ends of the pressure spring (7) are in contact with the pressure plate (6) and the baffle (5) respectively. The side of the pressure plate (6) close to the filter plate (202) is in contact with the filter plate (202).

7. The multi-stage screening device for raw materials in cement product processing according to claim 4, characterized in that: The right side of the first dispersing rod (32) extends to the right side of the feed box (31) and is fitted with a first gear (8). A first power motor (9) is provided on the right side of the front side of the feed box (31). A second gear (10) is fitted on the output shaft of the first power motor (9). A first synchronous gear belt (11) is fitted between the surfaces of several first gears (8) and second gears (10). The front side of the second dispersing rod (33) extends to the front side of the feed box (31) and is fitted with a third gear (12). A second power motor (13) is provided on the front side of the left side of the feed box (31). A fourth gear (14) is fitted on the output shaft of the second power motor (13). A second synchronous gear belt (15) is fitted between the surfaces of several third gears (12) and fourth gears (14).

8. The multi-stage screening device for raw materials in cement product processing according to claim 1, characterized in that: The bottom four corners of the screening box (1) are each bolted with a first mounting sleeve (16). The top of the inner wall of the first mounting sleeve (16) is connected with a support spring (17). The bottom of the support spring (17) is connected with a second mounting sleeve (18). The bottoms of the four second mounting sleeves (18) are bolted with a support frame (19). The front and rear sides of the screening box (1) are each bolted with a mounting plate (20). The side of the mounting plate (20) away from the screening box (1) is bolted with a vibration motor (21). The two sides and the bottom of the screening box (1) are respectively provided with discharge ports (22) for corresponding areas.

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