Screening device for limestone production

Abstract

The utility model discloses a screening device for limestone production. The screening device comprises a main body structure, the main body structure comprises a bottom plate, a collecting box, a shell and an inner container, the collecting box is arranged on the bottom plate, and the inner container is located in the shell; the screening mechanism comprises a first filter plate and a driving assembly; the driving assembly comprises a motor installed on the outer wall of one side of the shell, the output end of the motor is connected with a driving arm, the end of the driving arm is rotationally connected with a connecting arm, shaft rods are arranged on the opposite outer walls of the two sides of the inner container, rolling wheels are rotationally installed at the ends of the shaft rods, and movable openings matched with the rolling wheels for the rolling wheels to move are formed in the shell. And one group of shaft rods extends to the outside of the shell and is rotationally connected with the other end of the connecting arm. And an open type structure is adopted, so that the limestone can be screened, and meanwhile, a worker can replace and clean the first filter plate conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment for limestone production, specifically a screening device for limestone production. Background Technology

[0002] Limestone is an important raw material widely used in industry and construction. It is one of the main raw materials for producing cement, concrete, and mortar. It can be used for building foundations, walls, floors, and ceilings. Furthermore, limestone can be directly processed into aggregates and crushed stone for road construction and building construction. Limestone can be used as a soil conditioner to adjust soil pH, increase soil fertility, and thus improve crop yields. Additionally, limestone can be used as a feed additive to improve the quality of feed for poultry and livestock. Limestone has a wide range of industrial applications. It can be used to prepare chemical products such as calcium hydroxide and lime, which are used as raw materials in metallurgical, ironmaking, and steelmaking processes. Limestone is also used in the industrial production of paper, glass, rubber, and plastics as a filler, catalyst, or other chemical raw material.

[0003] In the process of limestone production and processing, it is necessary to screen the crushed limestone raw materials. A search revealed Chinese patent application number CN202122208233.9, which discloses a screening device for limestone processing. The device includes a box body with a base fitted at the bottom and a vibrating screen mechanism inside the base. A feed inlet is fixedly connected to the upper part of the box body. Screening plates are horizontally rotatable in the upper part and middle of the box body. Rotating discharge mechanisms are provided on both outer walls of the box body. A discharge port is horizontally opened on each of the two outer walls of the box body near the two screening plates. Guide plates are inclinedly bolted to the lower edge of the discharge ports on both outer walls of the box body. Cover plates are slidably installed on both outer walls of the box body near the discharge ports. This invention allows the two screening plates to rotate relative to each other and discharge materials to the discharge ports on both sides. The lower drawer can be pulled out for direct collection, achieving separate discharge without manual removal, which is quick and convenient. The cover plates are in a sealed state during screening and automatically open during discharge. The design is reasonable and the cost is low.

[0004] The above technical solution still has shortcomings:

[0005] Similar to traditional screening equipment, the screening structure, such as the screen, is located inside the machine body. Once the screen is damaged or blocked, the entire machine body needs to be disassembled for replacement or cleaning, which is inconvenient to use. Therefore, we need to propose a screening device for limestone production. Utility Model Content

[0006] The purpose of this utility model is to provide a screening device for limestone production. This device has a simple structure and is easy to use. Through the cooperation of the main structure, screening mechanism and drive components, the open structure can not only complete the screening of limestone, but also facilitate the replacement and cleaning of the first filter plate by the staff. This solves the problem of damage or blockage of the first filter plate during the use of the equipment, saves the time required for equipment maintenance, and improves the efficiency of limestone screening and processing, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A screening device for limestone production, comprising:

[0009] Main structure;

[0010] The main structure includes a base plate, a collection box, an outer shell, and an inner liner. The collection box is set on the base plate, the inner liner is located inside the outer shell, the outer shell is located above the collection box, and the lower end of the outer shell is provided with a conical discharge port.

[0011] It also includes a screening mechanism for screening limestone, the screening mechanism comprising a first filter plate disposed at the bottom of the inner liner and a drive assembly for driving the inner liner to move within the outer shell;

[0012] The drive assembly includes a motor mounted on one side of the outer wall of the housing. The output end of the motor is connected to a drive arm, and the end of the drive arm is rotatably connected to a connecting arm. Shafts are provided on the opposite outer walls of the inner liner. Rollers are rotatably mounted on the ends of the shafts. The housing has an opening adapted to the rollers for the rollers to move. One set of shafts extends to the outside of the housing and is rotatably connected to the other end of the connecting arm.

[0013] Preferably, guide rods are provided on the other two sets of side walls of the inner liner, the guide rods are slidably inserted into the outer shell, and limit blocks are provided at the ends of the guide rods.

[0014] Preferably, two sets of rubber washers are fitted on both sides of the outer shell of the guide rod, and compression springs are fitted on both sides of the outer shell of the guide rod, with the two ends of the compression springs respectively abutting against the two sets of washers.

[0015] Preferably, brackets are welded to both sides of the outer casing, and the lower ends of the brackets are welded to the base plate.

[0016] Preferably, a plate is inserted into one side of the collection box, and a partition is provided inside the collection box, which divides the collection box into two collection chambers.

[0017] Preferably, a second filter plate is provided at the opening of the collection chamber on one side of the collection box, which is inclined toward the collection chamber on the other side. The second filter plate is located directly below the discharge port of the outer shell.

[0018] Preferably, both sides of the collection box are provided with L-shaped positioning members, and the insert plate is inserted between the positioning members and the collection box.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This utility model features a main structure comprising a base plate, a collection box, an outer shell, and an inner liner. The inner liner is located inside the outer shell, with a discharge port at the bottom of the outer shell. A first filter plate is installed at the bottom of the inner liner for screening limestone. Rollers connected to both sides of the inner liner via shafts allow it to reciprocate within the outer shell. A motor is installed on the outer wall of the outer shell to drive the reciprocating motion of the inner liner. This device has a simple structure and is easy to use. Through the cooperation of the main structure, screening mechanism, and drive components, and employing an open design, it can not only complete the screening of limestone but also facilitate the replacement and cleaning of the first filter plate by operators. This addresses the issue of damage or blockage of the first filter plate during equipment use, saves maintenance time, and improves the efficiency of limestone screening and processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the outer shell of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the inner liner of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the collection box of this utility model.

[0025] In the diagram: 1. Base plate; 2. Collection box; 3. Outer shell; 4. Inner liner; 5. First filter plate; 6. Shaft; 7. Roller; 8. Movable port; 9. Motor; 10. Drive arm; 11. Connecting arm; 12. Guide rod; 13. Washer; 14. Compression spring; 15. Insert plate; 16. Partition plate; 17. Second filter plate; 18. Positioning component. Detailed Implementation

[0026] 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.

[0027] See also Figure 1-4 This utility model provides a technical solution:

[0028] A screening device for limestone production, comprising:

[0029] Main structure: The main structure includes a base plate 1, a collection box 2, an outer shell 3 and an inner liner 4. The collection box 2 is set on the base plate 1, the inner liner 4 is located inside the outer shell 3, the outer shell 3 is located above the collection box 2, and the lower end of the outer shell 3 is provided with a conical discharge port. Supports are welded to both sides of the outer shell 3, and the lower ends of the supports are welded to the base plate 1.

[0030] It also includes a screening mechanism for screening limestone. The screening mechanism includes a first filter plate 5 set at the bottom of the inner liner 4 and a drive assembly for driving the inner liner 4 to move within the outer shell 3. The drive assembly includes a motor 9 installed on one side of the outer wall of the outer shell 3. The output end of the motor 9 is connected to a drive arm 10. The end of the drive arm 10 is rotatably connected to a connecting arm 11. Shafts 6 are provided on the opposite outer walls on both sides of the inner liner 4. Rollers 7 are rotatably installed at the ends of the shafts 6. The outer shell 3 has an opening 8 that is adapted to the rollers 7 for the rollers 7 to move. One set of shafts 6 extends to the outside of the outer shell 3 and is rotatably connected to the other end of the connecting arm 11.

[0031] This utility model features a main structure comprising a base plate 1, a collection box 2, an outer shell 3, and an inner liner 4. The inner liner 4 is located inside the outer shell 3, with a discharge port at the bottom of the outer shell 3. A first filter plate 5 is installed at the bottom of the inner liner 4 for screening limestone. Rollers 7 are connected to both sides of the inner liner 4 via shafts 6, enabling the inner liner 4 to reciprocate within the outer shell 3. A motor 9 is installed on the outer wall of the outer shell 3 to drive the reciprocating motion of the inner liner 4. In use, limestone is fed into the inner liner 4, and the motor 9 is started. Under the action of the connecting arm 11 and the driving arm 10, the inner liner 4 is driven to reciprocate within the outer shell 3, thereby screening the limestone. Limestone of the correct size falls into the collection box 2 below through the discharge port, while unqualified limestone remains in the inner liner 4 and can be picked up and removed.

[0032] When the first filter plate 5, which plays a screening role inside the inner liner 4, is damaged or clogged, the staff can easily access the first filter plate 5 to replace or clean it because the opening of the inner liner 4 is exposed.

[0033] In summary, this device has a simple structure and is easy to use. Through the cooperation of the main structure, screening mechanism and drive components, the open structure can not only complete the screening of limestone, but also facilitate the replacement and cleaning of the first filter plate 5 by the staff. This makes it easy to solve the problem of damage or blockage of the first filter plate 5 during the use of the equipment, saves the time required for equipment maintenance and improves the efficiency of limestone screening and processing.

[0034] For further details, please refer to Figure 1-3:

[0035] Guide rods 12 are provided on the other two sets of side walls of the inner liner 4. The guide rods 12 are slidably inserted into the outer shell 3, and limit blocks are provided at the ends of the guide rods 12. Two sets of rubber washers 13 are sleeved on both sides of the guide rods 12 located on the outer shell 3. Compression springs 14 are sleeved on both sides of the guide rods 12 on the outer shell 3, and the two ends of the compression springs 14 respectively abut against the two sets of washers 13.

[0036] With this design, on the one hand, the guide rod 12 can guide the reciprocating motion of the inner liner 4, making the movement of the inner liner 4 more stable; on the other hand, with the cooperation of the compression spring 14 and the washer 13, a certain buffering effect can be activated, which not only reduces the wear and tear on the equipment during the movement of the inner liner 4, but also prevents the inner liner 4 from hitting the inner wall of the outer shell 3 or the limiting block from hitting the outer wall of the outer shell 3, thus extending the service life of the equipment.

[0037] In addition, please see Figure 4 :

[0038] A plate 15 is inserted into one side of the collection box 2. A partition 16 is installed inside the collection box 2, dividing it into two collection chambers. A second filter plate 17, inclined towards the other collection chamber, is installed at the opening of one collection chamber of the collection box 2. The second filter plate 17 is located directly below the discharge port of the outer casing 3. L-shaped positioning members 18 are provided on both sides of the collection box 2, and the plate 15 is inserted between the positioning member 18 and the collection box 2.

[0039] With this design, the collection box 2 is equipped with a double collection chamber, which, together with the inclined second filter plate 17, can perform secondary screening of the limestone after the initial screening, thereby further improving the screening accuracy of the device and enabling the screening limestone to be collected in categories.

[0040] The insert plate 15 on one side of the collection box 2 can be lifted and removed, so that the materials in the two sets of collection chambers can be processed separately from the opening on one side of the collection box 2.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A screening device for limestone production, characterized in that, include: Main structure; The main structure includes a base plate (1), a collection box (2), an outer shell (3) and an inner liner (4). The collection box (2) is set on the base plate (1), the inner liner (4) is located inside the outer shell (3), the outer shell (3) is located above the collection box (2), and the lower end of the outer shell (3) is provided with a cone-shaped discharge port. It also includes a screening mechanism for screening limestone, the screening mechanism including a first filter plate (5) disposed at the bottom of the inner liner (4) and a drive assembly for driving the inner liner (4) to move within the outer shell (3); The drive assembly includes a motor (9) mounted on one side of the outer wall of the housing (3). The output end of the motor (9) is connected to a drive arm (10). The end of the drive arm (10) is rotatably connected to a connecting arm (11). A shaft (6) is provided on the opposite outer walls on both sides of the inner liner (4). A roller (7) is rotatably mounted on the end of the shaft (6). The housing (3) has an opening (8) adapted to the roller (7) for the roller (7) to move. One set of the shafts (6) extends to the outside of the housing (3) and is rotatably connected to the other end of the connecting arm (11).

2. The screening device for limestone production according to claim 1, characterized in that: The inner liner (4) is provided with guide rods (12) on the other two sets of side walls. The guide rods (12) are slidably inserted into the outer shell (3), and the end of the guide rods (12) is provided with a limit block.

3. A screening device for limestone production according to claim 2, characterized in that: Two sets of rubber washers (13) are fitted on both sides of the outer shell (3) on the guide rod (12), and compression springs (14) are fitted on both sides of the outer shell (3) on the guide rod (12). The two ends of the compression springs (14) respectively abut against the two sets of washers (13).

4. A screening device for limestone production according to claim 1, characterized in that: The outer shell (3) has brackets welded to both sides of its outer shell (3), and the lower ends of the brackets are welded to the base plate (1).

5. A screening device for limestone production according to claim 1, characterized in that: A plate (15) is inserted into one side of the collection box (2), and a partition (16) is provided inside the collection box (2), which divides the collection box (2) into two collection chambers.

6. A screening device for limestone production according to claim 5, characterized in that: A second filter plate (17) is provided at the opening of the collection chamber on one side of the collection box (2) and is inclined to the collection chamber on the other side. The second filter plate (17) is located directly below the discharge port of the outer shell (3).

7. A screening device for limestone production according to claim 5, characterized in that: The collection box (2) is provided with L-shaped positioning parts (18) on both sides, and the insert plate (15) is inserted between the positioning parts (18) and the collection box (2).

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