Screening device for concrete accelerator production

Abstract

The utility model discloses a screening device for concrete accelerator production, and relates to the technical field of accelerator production. Comprising a box body, a material distributing cylinder is fixedly installed on the upper surface of the box body close to the right side edge, a material distributing mechanism is arranged in the material distributing cylinder, a feeding hopper is fixedly installed in the middle of the upper surface of the material distributing cylinder, buffering mechanisms are arranged at the four corners of the left and right inner walls of the box body in a rectangular shape, and a filter screen plate is obliquely and fixedly installed between the upper surfaces of the buffering mechanisms; a vibration motor is fixedly installed on the lower surface of the filter screen plate, a net chain conveying assembly is arranged between the front inner wall and the rear inner wall of the box body on the upper side of the filter screen plate, and pushing mechanisms are evenly arranged on the net chain conveying assembly. According to the quick-setting agent master batch screening device, master batch can be evenly laid on the filter screen plate, screening is facilitated, the screening speed can be accurately adjusted, the screening efficiency is guaranteed while the screening quality of the quick-setting agent master batch is guaranteed, screened powder can be conveniently collected, and the situation that the powder drifts away and pollutes the environment is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-setting agent production, in particular to a screening device for producing concrete quick-setting agent. Background Art

[0002] Accelerator is an admixture added to concrete to make it set and harden quickly. It is a powdery solid, and its dosage only accounts for 2% to 3% of the cement in concrete, but it can make the concrete set initially within 5 minutes and finally set within 10 minutes, so as to achieve the purpose of rapid setting of concrete in emergency repairs or shafts.

[0003] In the process of preparing the accelerator, the accelerator masterbatch particles are small in size, and the powder on the surface of the accelerator masterbatch can easily react with water in the air, which will make the accelerator masterbatch particles lose their activity. Therefore, before crushing the accelerator masterbatch particles, we need to screen out the powder entrained in the accelerator masterbatch particles to reduce the impact of the powder particles on the performance of the accelerator particles.

[0004] In the prior art, when adding materials, the conventional screening device for the production of quick-setting agents will cause the masterbatch to be screened to dock at a certain position of the filter screen plate, resulting in incomplete screening and requiring a large amount of time to screen. At the same time, the screening speed cannot be adjusted. When the screening speed angle is too low, the screening is not fine. When the screening speed is slow, the screening efficiency is low. In addition, the screened powder is not conducive to collection and is randomly scattered to pollute the environment. Utility Model Content

[0005] The utility model provides a screening device for producing a concrete accelerating agent, so as to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for the production of concrete quick-setting agent, comprising a box body, a distributing cylinder is fixedly installed on the upper surface of the box body near the right edge, a distributing mechanism is arranged in the distributing cylinder, a feeding hopper is fixedly installed in the middle position of the upper surface of the distributing cylinder, a buffer mechanism is arranged at the four corners of the left and right inner walls of the box body in a rectangular shape, a filter screen is fixedly installed between the upper surfaces of the buffer mechanism, and a rectangular opening is opened on the left side wall of the box body corresponding to the left end of the filter screen plate, a vibration motor is fixedly installed on the lower surface of the filter screen plate, a mesh chain conveying assembly is arranged between the front and rear inner walls of the box body on the upper side of the filter screen plate, a pushing mechanism is evenly arranged on the mesh chain conveying assembly, a conical bucket is arranged on the inner wall of the box body near the lower side, a one-way discharge valve is fixedly installed on the lower surface of the conical bucket, a collecting bucket is inserted into the front side of the box body corresponding to the one-way discharge valve, and an extraction mechanism is arranged on the right side wall of the box body near the lower side.

[0007] Furthermore, the fabric mechanism includes a spiral feeding rod, a driving motor and a discharge pipe, and two spiral feeding rods are arranged in front and rear mirror images. The spiral feeding rods are installed on the front and rear inner walls of the fabric cylinder, and the front and rear spiral feeding rods are fixedly connected facing each other. The spiral feeding rod is fixedly connected to the rear side surface of the drive motor output shaft, and the drive motor is installed on the front side surface of the fabric cylinder. Discharge pipes are evenly arranged on the front and rear sides of the lower side wall of the fabric cylinder.

[0008] Furthermore, the buffer mechanism includes a fixed block and a spring damping shock absorber, the fixed block is fixedly mounted on the inner wall of the box, and the upper surface of the fixed block is fixedly connected to the lower surface of the filter screen plate through the spring damping shock absorber.

[0009] Furthermore, the inclination angle of the mesh chain conveying assembly matches the inclination angle of the filter mesh plate.

[0010] Furthermore, the pushing mechanism includes a fixed plate, a mounting groove, a telescopic spring and a scraper. The fixed plate is fixedly mounted on the mesh chain conveying assembly. A mounting groove is provided on the side of the fixed plate away from the mesh chain conveying assembly. A telescopic spring is fixedly mounted in the mounting groove. A scraper is fixedly mounted on the telescopic spring, and the scraper is movably fitted to the upper surface of the filter screen.

[0011] Furthermore, the extraction mechanism includes a filter box and an extraction component, the filter box is fixedly installed on the right inner wall of the box, and the right side of the filter box is an open structure, the filter box is connected to the extraction component, and the extraction component is installed on the right side of the box.

[0012] Compared with the prior art, the utility model provides a screening device for producing a concrete accelerating agent, which has the following beneficial effects:

[0013] 1. The screening device for concrete accelerator production can evenly lay the masterbatch on the filter screen by arranging the distributing mechanism in the distributing drum, so that the laying thickness is more uniform, which is conducive to screening, and the mesh chain conveying component drives the pushing mechanism to rotate, so that the pushing mechanism controls the flow rate of the accelerator masterbatch on the filter screen, so as to accurately adjust the screening speed, so that the accelerator masterbatch can ensure the screening efficiency while ensuring the screening quality, and increase the cleaning function on the upper surface of the filter screen to effectively avoid its clogging.

[0014] 2. The screening device for the production of concrete accelerating setting agent is provided with a conical bucket and a one-way discharge valve, so that the screened powder flows to the collecting bucket, and then the separation is extracted through the extraction mechanism, which is convenient for collecting the screened powder and effectively avoiding the powder from scattering and polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a right side sectional view of the material distributing tube of the utility model;

[0018] Figure 4 It is a cross-sectional view of the pusher mechanism of the utility model.

[0019] In the figure: 1. box body; 2. feeding cylinder; 3. feeding mechanism; 301. spiral feeding rod; 302. driving motor; 303. discharging pipe; 4. feeding hopper; 5. buffer mechanism; 501. fixing block; 502. spring damping shock absorber; 6. filter screen; 7. rectangular opening; 8. vibration motor; 9. mesh chain conveying assembly; 10. pushing mechanism; 101. fixing plate; 102. mounting groove; 103. telescopic spring; 104. scraper; 11. conical bucket; 12. one-way discharge valve; 13. collecting bucket; 14. extraction mechanism; 141. filter box; 142. extraction assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model discloses a screening device for the production of concrete quick-setting agent, comprising a box body 1, a distributing drum 2 is fixedly installed on the upper surface of the box body 1 near the right edge, a distributing mechanism 3 is arranged in the distributing drum 2, a feeding hopper 4 is fixedly installed in the middle position of the upper surface of the distributing drum 2, a buffer mechanism 5 is arranged in a rectangular shape on the four corners of the left and right inner walls of the box body 1, a filter screen plate 6 is fixedly installed between the upper surfaces of the buffer mechanism 5, and a rectangular opening 7 is opened on the left side wall of the box body 1 corresponding to the left end of the filter screen plate 6 A vibration motor 8 is fixedly installed on the lower surface of the filter screen plate 6, a mesh chain conveying assembly 9 is arranged between the front and rear inner walls of the box body 1 on the upper side of the filter screen plate 6, and a pushing mechanism 10 is evenly arranged on the mesh chain conveying assembly 9, a conical bucket 11 is arranged on the inner wall of the box body 1 near the lower side, a one-way discharge valve 12 is fixedly installed on the lower surface of the conical bucket 11, a collecting bucket 13 is inserted into the front side surface of the box body 1 corresponding to the one-way discharge valve 12, and an extraction mechanism 14 is arranged on the right side wall of the box body 1 near the lower side.

[0022] Specifically, the cloth mechanism 3 includes a spiral feeding rod 301, a driving motor 302 and a discharge pipe 303. Two spiral feeding rods 301 are arranged in front and back mirror images. The spiral feeding rods 301 are installed on the front and back inner walls of the cloth drum 2, and the front and rear spiral feeding rods 301 are fixedly connected facing each other. The spiral feeding rod 301 is fixedly connected to the rear side of the output shaft of the driving motor 302. The driving motor 302 is installed on the front side of the cloth drum 2, and the discharge pipes 303 are evenly arranged on the front and back of the lower side wall of the cloth drum 2.

[0023] In this embodiment, the driving motor 302 drives the front and rear spiral feeding rods 301 to rotate in the distributing barrel 2, so that the front and rear spiral feeding rods 301 drive the quick-setting agent masterbatch entering the feeding hopper 4 to move forward and backward in the distributing barrel 2, so that the quick-setting agent masterbatch passes through the lower side discharge pipe 303 at a uniform flow rate, and the quick-setting agent masterbatch flowing out of the discharge pipe 303 falls evenly on the upper surface of the filter mesh plate 6.

[0024] Specifically, the buffer mechanism 5 includes a fixed block 501 and a spring damping shock absorber 502 . The fixed block 501 is fixedly mounted on the inner wall of the box body 1 . The upper surface of the fixed block 501 is fixedly connected to the lower surface of the filter screen plate 6 through the spring damping shock absorber 502 .

[0025] In this embodiment, the fixing block 501 is used to fix the spring damping shock absorber 502 , and the spring damping shock absorber 502 increases the vibration function of the filter screen plate 6 , so that the filter screen plate 6 can vibrate following the vibration motor 8 .

[0026] Specifically, the inclination angle of the mesh chain conveying assembly 9 matches the inclination angle of the filter mesh plate 6 .

[0027] In this embodiment, the pushing mechanism 10 on the mesh chain conveying assembly 9 can better push the quick-setting agent masterbatch on the upper surface of the filter mesh plate 6 .

[0028] Specifically, the pushing mechanism 10 includes a fixed plate 101, a mounting groove 102, a telescopic spring 103 and a scraper 104. The fixed plate 101 is fixedly mounted on the mesh chain conveying assembly 9. The fixed plate 101 is provided with a mounting groove 102 on the side away from the mesh chain conveying assembly 9. The telescopic spring 103 is fixedly mounted in the mounting groove 102. The scraper 104 is fixedly mounted on the telescopic spring 103, and the scraper 104 is movably fitted to the upper surface of the filter mesh plate 6.

[0029] In this embodiment, the mounting groove 102 on the fixed plate 101 is used for installing the telescopic spring 103. The telescopic spring 103 drives the scraper 104 to move up and down to ensure that the scraper 104 and the filter mesh plate 6 do not fit together. The scraper 104 drives the quick-setting agent masterbatch to flow to the left, and at the same time cleans the upper surface of the filter mesh plate 6 to avoid clogging of the filter mesh plate 6.

[0030] Specifically, the extraction mechanism 14 includes a filter box 141 and an extraction component 142. The filter box 141 is fixedly installed on the right inner wall of the box body 1, and the right side of the filter box 141 is an open structure. The filter box 141 is connected to the extraction component 142, and the extraction component 142 is installed on the right side of the box body 1.

[0031] In this embodiment, the extraction component 142 extracts the inside of the box 1 through the filter box 141, so that negative pressure is formed in the box 1 corresponding to the collecting bucket 13, so that the powder left at the one-way discharge valve 12 falls into the collecting bucket 13, preventing the powder from floating randomly.

[0032] When in use, the quick-setting agent masterbatch is poured into the feeding hopper 4, and the quick-setting agent masterbatch flows into the distributing barrel 2. The driving motor 302 in the distributing mechanism 3 drives the front and rear spiral feeding rods 301 to rotate in the distributing barrel 2, so that the front and rear spiral feeding rods 301 drive the quick-setting agent masterbatch entering the feeding hopper 4 to move forward and backward in the distributing barrel 2, so that the quick-setting agent masterbatch passes through the lower side discharge pipe 303 with a uniform flow rate, and the quick-setting agent masterbatch flowing out of the discharge pipe 303 falls evenly on the upper surface of the filter screen plate 6, and then the filter screen plate 6 is driven to vibrate by the vibration motor 8, so that the filter screen plate 6 vibrates and screens the quick-setting agent masterbatch. In the screening process, the pushing mechanism 10 is driven to move along the upper surface of the filter screen plate 6 by the mesh chain conveying component 9, and the rotation speed of the mesh chain conveying component 9 and the pushing mechanism 10 is adjusted. The scraper 104 drives the quick-setting agent masterbatch on the upper surface of the filter mesh plate 6 to move, and the scraper 104 cleans the upper surface of the filter mesh plate 6 to effectively avoid clogging. The filtered quick-setting agent masterbatch flows out through the rectangular opening 7, so that the thickness of the quick-setting agent masterbatch is more uniform, which is conducive to screening. The screening speed can be accurately adjusted to ensure the screening efficiency while ensuring the screening quality. The powder passes through the filter mesh plate 6 and falls into the conical bucket 11, and then flows to the collecting bucket 13 through the one-way discharge valve 12. The extraction component 142 in the extraction mechanism 14 extracts the box 1 through the filter box 141, so that a negative pressure is formed in the box 1 corresponding to the collecting bucket 13, and the powder left at the one-way discharge valve 12 falls into the collecting bucket 13, so as to avoid the powder from scattering and polluting the environment.

[0033] In summary, the screening device for the production of concrete accelerating agent can make the masterbatch evenly laid on the filter plate 6, which is conducive to screening, and can accurately adjust the screening speed, so that the screening efficiency of the accelerating agent masterbatch can be guaranteed while ensuring the screening quality, and it is convenient to collect the screened powder, effectively avoiding the powder from scattering and polluting the environment.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing a concrete accelerating agent, comprising a housing (1), characterized in that: A material distributing cylinder (2) is fixedly mounted on the upper surface of the box body (1) near the right edge, a material distributing mechanism (3) is arranged inside the material distributing cylinder (2), a feeding hopper (4) is fixedly mounted in the middle of the upper surface of the material distributing cylinder (2), a buffer mechanism (5) is arranged in a rectangular shape on the four corners of the left and right inner walls of the box body (1), a filter screen plate (6) is fixedly mounted obliquely between the upper surfaces of the buffer mechanism (5), and a rectangular opening (7) is opened on the left side wall of the box body (1) corresponding to the left end of the filter screen plate (6), and a filter screen plate (6) is fixedly mounted on the lower surface of the filter screen plate (6). A vibration motor (8) is provided, a mesh chain conveying assembly (9) is arranged between the front and rear inner walls of the box body (1) on the upper side of the filter screen plate (6), a pushing mechanism (10) is evenly arranged on the mesh chain conveying assembly (9), a conical bucket (11) is arranged near the lower side of the inner wall of the box body (1), a one-way discharge valve (12) is fixedly installed on the lower surface of the conical bucket (11), a collecting bucket (13) is inserted into the front side surface of the box body (1) corresponding to the one-way discharge valve (12), and an extraction mechanism (14) is arranged near the lower side of the right side wall of the box body (1).

2. A screening device for producing a concrete accelerating agent according to claim 1, characterized in that: The material dispensing mechanism (3) comprises a spiral feeding rod (301), a driving motor (302) and a discharging pipe (303), wherein two spiral feeding rods (301) are arranged in a front and rear mirror image, the spiral feeding rods (301) are mounted on the front and rear inner walls of the material dispensing cylinder (2), and the front and rear spiral feeding rods (301) are fixedly connected facing each other, the spiral feeding rod (301) is fixedly connected to the rear side surface of the output shaft of the driving motor (302), the driving motor (302) is mounted on the front side surface of the material dispensing cylinder (2), and the discharging pipes (303) are evenly arranged on the front and rear sides of the lower side wall of the material dispensing cylinder (2).

3. A screening device for producing a concrete accelerating agent according to claim 1, characterized in that: The buffer mechanism (5) comprises a fixed block (501) and a spring damping shock absorber (502); the fixed block (501) is fixedly mounted on the inner wall of the box body (1); and the upper surface of the fixed block (501) is fixedly connected to the lower surface of the filter screen plate (6) via the spring damping shock absorber (502).

4. A screening device for producing a concrete accelerating agent according to claim 1, characterized in that: The inclination angle of the mesh chain conveying assembly (9) matches the inclination angle of the filter mesh plate (6).

5. A screening device for producing a concrete accelerating agent according to claim 1, characterized in that: The pushing mechanism (10) comprises a fixed plate (101), a mounting groove (102), a telescopic spring (103) and a scraper (104); the fixed plate (101) is fixedly mounted on the mesh chain conveying assembly (9); a mounting groove (102) is provided on a side of the fixed plate (101) away from the mesh chain conveying assembly (9); a telescopic spring (103) is fixedly mounted in the mounting groove (102); a scraper (104) is fixedly mounted on the telescopic spring (103); and the scraper (104) is movably fitted to the upper surface of the filter screen plate (6).

6. A screening device for producing a concrete accelerating agent according to claim 1, characterized in that: The extraction mechanism (14) comprises a filter box (141) and an extraction component (142); the filter box (141) is fixedly mounted on the right inner wall of the box body (1), and the right side surface of the filter box (141) is an open structure; the filter box (141) is connected to the extraction component (142); and the extraction component (142) is mounted on the right side surface of the box body (1).

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