Cylindrical precleaner for building sand screening
By setting collision blocks and springs on the drum screen, the attached building sand material is cleaned by vibration effect, which solves the problem of filter hole blockage caused by the damp sand material when screening building sand material in the drum screen, and improves the screening effect.
Patent Information
- Application Number
- CN202421888604.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-06
AI Technical Summary
When screening building sand, the existing drum screen is humid and easily adheres to the drum screen, resulting in clogging of the filter holes and affecting the screening effect.
A cylinder cleaning screen for building sand screen is designed. By setting a collision block and a spring on the roller screen, the bumps come into contact with the collision block when the roller screen rotates, which drives the collision block to push upwards, so that the bumps pass smoothly. Then, it is reset through the spring, continuously generate a vibration effect, clean the attached sand and diffuse it through the filter hole.
Effectively prevent building sand from adhering to the inner wall of the drum screen, reduce filter hole blockage, improve screening effect, and ensure the consistency of specifications of building sand.
Smart Images
Figure CN222956845U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building sand production, and particularly relates to a cylindrical primary cleaning screen for building sand screening. Background Technique
[0002] Building sand is one of the indispensable materials in construction projects. It is mainly used for preparing concrete and mortar, and plays a crucial role in ensuring the project quality. In the construction industry, the specifications, sources of sand and its application in decoration are all of great significance to the project quality.
[0003] During the production process of building sand, it is usually necessary to screen the sand to meet the use of different building scenarios for different specifications of sand. When the existing drum screen screens the sand, due to the relatively humid problem of the sand, it is easy to adhere to the drum screen during the screening process, causing the filter holes to be blocked, affecting the screening effect, and resulting in a large amount of irregular mixing of the screened sediment. Therefore, we propose a cylindrical primary cleaning screen for building sand screening. Content of the Utility Model
[0004] The purpose of the utility model is to provide a cylindrical primary cleaning screen for building sand screening. By setting collision blocks, specifically, when the drum screen rotates, the convex blocks will contact and collide with the collision blocks, and push the collision blocks upward, so that the convex blocks can smoothly pass through the collision blocks. After passing through, the collision blocks can reset under the elastic action of the second spring. In this way, the drum screen can continuously produce a vibration effect, thereby cleaning the attached building sand, dredging the filter holes, reducing the occurrence of blockage, and preventing the building sand from sticking to the inner wall of the drum screen. It solves the problem that when the drum screen screens the sand, due to the relatively humid problem of the sand, it is easy to adhere to the drum screen during the screening process, causing the filter holes to be blocked and affecting the screening effect.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a cylindrical primary cleaning screen for building sand screening, which includes a cylindrical box. The left side of the cylindrical box is fixedly connected with a feed hopper. The center of the left side of the cylindrical box is fixedly connected with a motor. A drum screen is arranged inside the cylindrical box. A plurality of convex blocks are fixedly connected to the outer surface of the drum screen. Two fixed seats are fixedly connected to the top of the cylindrical box. A plurality of flow guiding rings are fixedly connected to the inner wall of the cylindrical box.
[0007] The components connected inside the two fixing seats are the same. A collision block is arranged below the fixing seat. The top of the collision block is fixedly connected with two limiting rods. The tops of the two limiting rods penetrate through the bottom of the fixing seat and extend into the interior. Springs II are sleeved outside the two limiting rods. By arranging the collision block, specifically, when the drum sieve rotates, the convex block will contact and collide with the collision block, and push the collision block upward, so that the convex block can smoothly pass through the collision block. After passing through, the collision block can be reset under the elastic action of the spring II. Repeating like this can continuously make the drum sieve vibrate, thereby cleaning the attached construction sand and dredging the filter holes, reducing the occurrence of blockage, and preventing the construction sand from sticking to the inner wall of the drum sieve.
[0008] Further, discharge ports I, II, and III are respectively opened at the bottom of the cylindrical box. Three fixing frames are fixedly connected to the inner wall of the drum sieve. A rotating shaft is fixedly connected to the center of the three fixing frames. The left side of the drum sieve contacts a sealing disc. The outer ring of the sealing disc is fixedly connected to the inner wall of the cylindrical box. The left side part of the drum sieve filters the finer particles in the construction sand, and the finer construction sand is discharged through the discharge port I. As the drum sieve rotates, the construction sand inside will slowly move to the right. The sealing disc plays a blocking role to prevent the construction sand from being discharged from the left side of the drum sieve. Then, after the construction sand moves to the right area of the drum sieve, it will filter the construction sand again, so that the medium-sized particles are discharged through the discharge port II. Finally, the larger particles are discharged through the discharge port III, and the construction sand can be filtered three times.
[0009] Further, the right side of the feed hopper penetrates through the cylindrical box and the sealing disc and extends into the interior of the drum sieve. A guide plate is fixedly connected to the inner wall of the feed hopper. The bottom of the guide plate contacts a moving plate. The front and back sides of the right side of the moving plate are both arc-shaped. The bottom of the moving plate contacts the bottom of the inner wall of the feed hopper. A plurality of dredging rods are fixedly connected to the top of the moving plate. By arranging the dredging rods, specifically, when the fixing frame rotates, it will contact and push the moving plate, and the dredging rods will move together, thereby dredging the inside of the feed hopper. When the fixing frame leaves the moving plate, the moving plate is reset under the elastic action of the spring I. Repeating like this can continuously make the dredging rods dredge the inside of the feed hopper, thereby avoiding blockage of the feed hopper and enabling the construction sand to smoothly enter the drum sieve.
[0010] Further, two sliding rods are fixedly connected to the left side of the moving plate. The left sides of the two sliding rods penetrate through the feed hopper and extend to the outside. Spring I is sleeved on the outer sides of the two sliding rods. The bottom of the collision block is arc-shaped. The limiting rod is slidably connected to the fixed seat. The top of Spring II is fixedly connected to the surface of the limiting rod, and the bottom of Spring II is fixedly connected to the inner bottom wall of the fixed seat. After the convex block contacts the collision block, it will push the collision block upward. Then the collision block drives the limiting rod to slide in the fixed seat and stretches Spring II at the same time, enabling the convex block to smoothly pass through the collision block. After passing through, the collision block can reset under the elastic action of Spring II, facilitating the next collision.
[0011] Further, both the left and right sides of the rotating shaft are rotatably connected to the cylindrical box. The left side of the rotating shaft is fixedly connected to the output end of the right side of the motor. There is a distance between the right side of the drum sieve and the inner right wall of the cylindrical box. The sliding rod is slidably connected to the feed hopper. The left side of Spring I is fixedly connected to the inner wall of the diversion plate, and the right side of Spring I is fixedly connected to the left side of the moving plate. When the drum sieve rotates, the fixed frame will contact the moving plate. Since the front and back of the right side of the moving plate are both arc-shaped, the fixed frame will push the moving plate into the feed hopper.
[0012] The utility model has the following beneficial effects:
[0013] 1. By setting the collision block in the utility model, specifically, when the drum sieve rotates, the convex block will contact and collide with the collision block and push the collision block upward, enabling the convex block to smoothly pass through the collision block. After passing through, the collision block can reset under the elastic action of Spring II. Repeating this way can continuously vibrate the drum sieve, thereby cleaning the attached construction sand and dredging the filter holes, reducing blockage, and preventing the construction sand from adhering to the inner wall of the drum sieve.
[0014] 2. By setting the dredging rod in the utility model, specifically, when the fixed frame rotates, it will contact and push the moving plate, and the dredging rod will move along with it, thereby dredging the inside of the feed hopper. When the fixed frame leaves the moving plate, the moving plate resets under the elastic action of Spring I. Repeating this way can continuously dredge the inside of the feed hopper by the dredging rod, thereby avoiding blockage of the feed hopper and enabling the construction sand to smoothly enter the drum sieve.
[0015] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. Description of the Drawings
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 It is a schematic diagram of the front sectional structure of the cylindrical box of the present invention;
[0019] Figure 3 For the present invention Figure 2 An enlarged structural diagram of A in it;
[0020] Figure 4 For the present invention Figure 2 An enlarged structural diagram of B in it;
[0021] Figure 5 It is a schematic diagram of the overall structure of the drum screen of the present invention;
[0022] Figure 6 It is a schematic diagram of the front sectional structure of the feed hopper of the present invention.
[0023] In the accompanying drawings, the list of components represented by each reference numeral is as follows:
[0024] 1. Cylindrical box; 11. Feed hopper; 111. Deflector; 112. Moving plate; 113. Unclogging rod; 114. Slide rod; 115. First spring; 12. Motor; 13. Drum screen; 131. Fixed frame; 132. Rotating shaft; 133. Sealing disk; 134. Convex block; 14. Fixed seat; 141. Collision block; 142. Limiting rod; 143. Second spring; 15. Guide ring; 16. First discharge port; 17. Second discharge port; 18. Third discharge port. Detailed implementation manners
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0026] Please refer to Figures 1-6As shown in the figure, the utility model relates to a cylindrical primary cleaner for building sand screening, which includes a cylindrical box 1. A feed hopper 11 is fixedly connected to the left side of the cylindrical box 1, and a motor 12 is fixedly connected to the center of the left side of the cylindrical box 1. A drum screen 13 is arranged inside the cylindrical box 1. A number of bumps 134 are fixedly connected to the outer surface of the drum screen 13. Two fixed seats 14 are fixedly connected to the top of the cylindrical box 1, and a number of flow guiding rings 15 are fixedly connected to the inner wall of the cylindrical box 1; the parts connected inside the two fixed seats 14 are the same. A collision block 141 is arranged below the fixed seat 14. Two limit rods 142 are fixedly connected to the top of the collision block 141. The tops of the two limit rods 142 both penetrate through the bottom of the fixed seat 14 and extend to the inside. Spring two 143 is sleeved on the outer sides of the two limit rods 142. By setting the collision block 141, specifically, when the drum screen 13 rotates, the bump 134 will contact and collide with the collision block 141, and push the collision block 141 upward, so that the bump 134 can smoothly pass through the collision block 141. After passing through, the collision block 141 can reset under the elastic action of spring two 143. Repeating like this can make the drum screen 13 continuously produce a vibrating effect, thereby cleaning the attached building sand materials, dredging the filter holes, reducing the occurrence of blockage, and preventing the building sand materials from adhering to the inner wall of the drum screen 13. Discharge ports one 16, two 17 and three 18 are respectively opened at the bottom of the cylindrical box 1. Three fixing frames 131 are fixedly connected to the inner wall of the drum screen 13. A rotating shaft 132 is fixedly connected to the center of the three fixing frames 131. A sealing disk 133 is in contact with the left side of the drum screen 13. The outer ring of the sealing disk 133 is fixedly connected to the inner wall of the cylindrical box 1. The left side part of the drum screen 13 filters the finer particles in the building sand materials, and the finer building sand materials are discharged through the discharge port one 16. As the drum screen 13 rotates, the building sand materials inside will slowly move to the right side. The sealing disk 133 plays a blocking role to prevent the building sand materials from being discharged from the left side of the drum screen 13. Subsequently, after the building sand materials move to the right side area of the drum screen 13, the building sand materials will be filtered again, so that the medium-sized particles are discharged from the discharge port two 17, and finally the larger particles are discharged from the discharge port three 18, and the building sand materials can be filtered three times.The right side of the feed hopper 11 penetrates through the cylindrical box 1 and the sealing disc 133 and extends into the inside of the drum sieve 13. A flow guide plate 111 is fixedly connected to the inner wall of the feed hopper 11. A moving plate 112 is in contact with the bottom of the flow guide plate 111. The front and back of the right side of the moving plate 112 are both arc-shaped. The bottom of the moving plate 112 is in contact with the bottom of the inner wall of the feed hopper 11. A plurality of dredging rods 113 are fixedly connected to the top of the moving plate 112. By arranging the dredging rods 113, specifically, when the fixed frame 131 rotates, it will contact and push the moving plate 112, and the dredging rods 113 will move together, thereby dredging the inside of the feed hopper 11. When the fixed frame 131 leaves the moving plate 112, the moving plate 112 will reset under the elastic action of the first spring 115. In this way, the dredging rods 113 can continuously dredge the inside of the feed hopper 11, thereby avoiding the blockage of the feed hopper 11 and enabling the construction sand to smoothly enter the drum sieve 13. Two sliding rods 114 are fixedly connected to the left side of the moving plate 112. The left sides of the two sliding rods 114 penetrate through the feed hopper 11 and extend to the outside. The outer sides of the two sliding rods 114 are sleeved with the first spring 115. The bottom of the collision block 141 is arc-shaped. The limiting rod 142 is slidably connected to the fixed seat 14. The top of the second spring 143 is fixedly connected to the surface of the limiting rod 142. The bottom of the second spring 143 is fixedly connected to the bottom of the inner wall of the fixed seat 14. After the convex block 134 contacts the collision block 141, it will push the collision block 141 upward. Then the collision block 141 drives the limiting rod 142 to slide in the fixed seat 14 and stretches the second spring 143 at the same time, enabling the convex block 134 to smoothly pass through the collision block 141. And after passing through, the collision block 141 can reset under the elastic action of the second spring 143, facilitating the next collision. The left and right sides of the rotating shaft 132 are rotatably connected to the cylindrical box 1. The left side of the rotating shaft 132 is fixedly connected to the output end of the right side of the motor 12. There is a distance between the right side of the drum sieve 13 and the right side of the inner wall of the cylindrical box 1. The sliding rod 114 is slidably connected to the feed hopper 11. The left side of the first spring 115 is fixedly connected to the inner wall of the flow guide plate 111. The right side of the first spring 115 is fixedly connected to the left side of the moving plate 112. When the drum sieve 13 rotates, the fixed frame 131 will contact the moving plate 112. Since the front and back of the right side of the moving plate 112 are both arc-shaped, the fixed frame 131 will push the moving plate 112 into the feed hopper 11.
[0027] A specific application of this embodiment is:
[0028] During use, put the construction sand into the feed hopper 11, then the construction sand will leak into the drum sieve 13. Start the motor 12 to drive the rotation of the rotating shaft 132, then the rotating shaft 132 drives the drum sieve 13 to rotate through the fixing frame 131. The left part of the drum sieve 13 filters out the finer particles in the construction sand, and the finer construction sand is discharged through the first discharge port 16. As the drum sieve 13 rotates, the construction sand inside will slowly move to the right. The sealing disc 133 plays a blocking role to prevent the construction sand from being discharged from the left side of the drum sieve 13. Then, after the construction sand moves to the right area of the drum sieve 13, it will filter the construction sand again, so that the medium-sized particles are discharged from the second discharge port 17. Finally, the larger particles are discharged from the third discharge port 18. It can filter the construction sand three times. At the same time, when the drum sieve 13 rotates, it will drive the convex block 134 to rotate together. When the convex block 134 contacts the collision block 141, a collision effect will occur, causing the drum sieve 13 to vibrate. At the same time, the convex block 134 will push the collision block 141 upward, then the collision block 141 drives the limiting rod 142 to slide in the fixed seat 14 and stretches the second spring 143 at the same time, enabling the convex block 134 to pass through the collision block 141 smoothly. And after passing through, the collision block 141 can be reset under the elastic action of the second spring 143, facilitating the next collision. Repeating like this can make the drum sieve 13 continuously produce a vibration effect, thereby cleaning the attached construction sand, dredging the filter holes, reducing the occurrence of blockage, preventing the construction sand from sticking to the inner wall of the drum sieve 13. At the same time, when the drum sieve 13 rotates, the fixing frame 131 will contact the moving plate 112. Since the front and back sides of the right side of the moving plate 112 are both arc-shaped, the fixing frame 131 will push the moving plate 112 into the feed hopper 11, then the sliding rod 114 slides on the feed hopper 11 and squeezes the first spring 115, and the dredging rod 113 moves along with it, thereby dredging the inside of the feed hopper 11. When the fixing frame 131 leaves the moving plate 112, the moving plate 112 is reset under the elastic action of the first spring 115. Repeating like this can make the dredging rod 113 continuously dredge the inside of the feed hopper 11, thereby avoiding the blockage of the feed hopper 11 and enabling the construction sand to smoothly enter the drum sieve 13.
[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.
Claims
1. A cylindrical primary cleaning screen for screening sand in construction, comprising a cylindrical box (1), a feed hopper (11) fixedly connected to the left side of the cylindrical box (1), a motor (12) fixedly connected to the center of the left side of the cylindrical box (1), a drum screen (13) arranged inside the cylindrical box (1), characterized in that: The outer surface of the drum screen (13) is fixedly connected with a plurality of protrusions (134), the top of the cylindrical box (1) is fixedly connected with two fixing seats (14), and the inner wall of the cylindrical box (1) is fixedly connected with a plurality of guide rings (15); The parts connected inside the two fixing seats (14) are the same. A collision block (141) is arranged below the fixing seat (14). Two limit rods (142) are fixedly connected to the top of the collision block (141). The tops of the two limit rods (142) penetrate the bottom of the fixing seat (14) and extend to the inside. The outer sides of the two limit rods (142) are sleeved with springs (143).
2. A cylindrical primary cleaning screen for construction sand screening according to claim 1, characterized in that: The bottom of the cylindrical box (1) is respectively provided with a discharge port 1 (16), a discharge port 2 (17) and a discharge port 3 (18); the inner wall of the drum screen (13) is fixedly connected with three fixing frames (131); the centers of the three fixing frames (131) are fixedly connected with a rotating shaft (132); the left side of the drum screen (13) contacts with a sealing disk (133); the outer ring of the sealing disk (133) is fixedly connected with the inner wall of the cylindrical box (1).
3. A cylindrical primary cleaning screen for construction sand screening according to claim 2, characterized in that: The right side of the feed hopper (11) passes through the cylindrical box (1) and the sealing disk (133) and extends to the inside of the drum screen (13); a guide plate (111) is fixedly connected to the inner wall of the feed hopper (11); the bottom of the guide plate (111) contacts a movable plate (112); the front and back sides of the right side of the movable plate (112) are both arc-shaped; the bottom of the movable plate (112) contacts the bottom of the inner wall of the feed hopper (11); and a plurality of dredging rods (113) are fixedly connected to the top of the movable plate (112).
4. A cylindrical primary cleaning screen for construction sand screening according to claim 3, characterized in that: The left side of the movable plate (112) is fixedly connected to two slide bars (114), the left sides of the two slide bars (114) both penetrate the feed hopper (11) and extend to the outside, and the outer sides of the two slide bars (114) are both sleeved with springs 1 (115).
5. A cylindrical primary cleaning screen for construction sand screening according to claim 4, characterized in that: The bottom of the collision block (141) is arranged in an arc shape, the limiting rod (142) is slidably connected to the fixing seat (14), the top of the second spring (143) is fixedly connected to the surface of the limiting rod (142), and the bottom of the second spring (143) is fixedly connected to the bottom of the inner wall of the fixing seat (14).
6. A cylindrical primary cleaning screen for construction sand screening according to claim 4, characterized in that: The left and right sides of the rotating shaft (132) are both rotatably connected to the cylindrical box (1), the left side of the rotating shaft (132) is fixedly connected to the right output end of the motor (12), and there is a gap between the right side of the drum screen (13) and the right side of the inner wall of the cylindrical box (1).
7. A cylindrical primary cleaning screen for construction sand screening according to claim 4, characterized in that: The slide bar (114) is slidably connected to the feed hopper (11), the left side of the spring one (115) is fixedly connected to the inner wall of the guide plate (111), and the right side of the spring one (115) is fixedly connected to the left side of the moving plate (112).