Screening device for recycled concrete processing

Abstract

The utility model discloses a screening device for recycled concrete processing, and relates to the technical field of sorting. The screening device for recycled concrete processing comprises a recycled concrete screening box, the upper end of the recycled concrete screening box is fixedly connected with a recycled concrete injection pipe, a recycled concrete screening barrel is arranged in the recycled concrete screening box, and the front section and the rear section of the recycled concrete screening barrel are fixedly connected with screening barrel fixing rods correspondingly; screening holes are evenly formed in the surface of the recycled concrete screening cylinder, a screening assembly is arranged in the recycled concrete screening cylinder, and a recycled concrete scraping plate and a recycled concrete disturbance plate scrape the interior of the recycled concrete screening cylinder in a reciprocating mode, so that screening of the recycled concrete screening cylinder is facilitated; and the recycled concrete aggregate in the recycled concrete screening cylinder is conveniently scraped, the recycled concrete aggregate is conveniently discharged, the screening efficiency of the device is improved, the practicability of the device is improved, and the cleaning effect of the recycled concrete screening cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sorting, in particular to a screening device for processing recycled concrete. Background Art

[0002] Recycled concrete refers to new concrete made by crushing, cleaning, and grading discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel, and then adding cement, water, etc. The recycled aggregate components include not only a small amount of stone separated from the mortar, stone partially wrapped in the mortar, but also a small amount of cement mortar in independent blocks. The Chinese utility model patent, authorization announcement number "CN217120817U", discloses a recycled concrete aggregate screening device, including a bottom plate, support plates are fixed at both ends of the top of the bottom plate, a sliding assembly is installed on the top between the two groups of support plates, a box is installed at the bottom of the sliding assembly, a driving assembly is installed on one side of the box, a feed inlet is opened at the top of the box, a discharge port is opened at the bottom of the box, a first screening frame is installed at the top of the box inner cavity, a second screening frame is installed at the center of the box inner cavity, and a third screening frame is installed at the bottom of the box inner cavity.

[0003] The above technical solution enables the device to screen concrete aggregates multiple times by coordinating the first screening frame, the second screening frame, the third screening frame and the sieve holes, which helps to solve the problem of insufficient screening of the existing device, and thus makes the size of the obtained concrete aggregates more uniform. However, the above technical solution still has certain defects. When screening the recycled concrete aggregates, the classification purpose is achieved by setting up a multi-stage screening method for the aggregates. However, during the screening process, the aggregates discharged from the first two screenings will stay and aggregate inside the screening frame, which is easy to cause obstruction to the aggregate screening during subsequent feeding. The screening frame needs to be disassembled and cleaned before the concrete aggregates can be screened again, which affects the screening efficiency. For this reason, the utility model proposes a new solution. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a screening device for recycled concrete processing, which can solve the problem that when screening recycled concrete aggregates, the purpose of classification is achieved by setting a multi-stage screening method for the aggregates. However, during the screening process, the aggregates discharged from the first two screenings will stay and gather inside the screening frame, which is easy to cause obstruction to the aggregate screening during subsequent feeding. The screening frame needs to be disassembled and cleaned before the concrete aggregates can be screened again, thereby affecting the screening efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for recycled concrete processing, comprising a recycled concrete screening box, the upper end of which is fixedly connected to a recycled concrete injection pipe, a recycled concrete screening cylinder is arranged inside the recycled concrete screening box, and the front and rear sections of the recycled concrete screening cylinder are respectively fixedly connected to screening cylinder fixing rods;

[0006] The surface of the recycled concrete screening cylinder is evenly provided with screening holes, and a screening component is arranged inside the recycled concrete screening cylinder;

[0007] Wherein, the screening assembly includes a driving motor, which is fixedly connected to the front end of the recycled concrete screening cylinder;

[0008] The output end of the driving motor is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected to the inside of the recycled concrete screening cylinder, and the surface of the rotating shaft is fixedly connected with a plurality of recycled concrete disturbance plates and a plurality of recycled concrete scrapers;

[0009] Wherein, the left and right ends of the recycled concrete screening cylinder are respectively fixedly connected with recycled concrete guide plates.

[0010] Preferably, a curved plate is fixedly connected inside the recycled concrete screening box, and a recycled concrete guide frame is fixedly connected inside the recycled concrete screening box;

[0011] Wherein, a tilted recycled concrete discharge plate is fixedly connected to the interior of the recycled concrete screening box.

[0012] Preferably, the inner wall of the recycled concrete screening box is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a fixed plate, and the interior of the fixed plate is slidably connected with two sliding rods;

[0013] The upper ends of the two slide bars are fixedly connected with a movable plate, the surfaces of the two slide bars are sleeved with springs, and the upper and lower ends of the two springs are fixedly connected with the fixed plate and the movable plate respectively;

[0014] Wherein, a screen connection block is arranged inside the movable plate, a connection block fixed shaft is fixedly connected inside the screen connection block, and the connection block fixed shaft is slidably connected with the movable plate.

[0015] Preferably, there are four electric telescopic rods, which are symmetrically arranged on the inner wall surface of the recycled concrete screening box.

[0016] Preferably, the recycled concrete screening box has two screen fixing shafts rotatably connected inside, and two recycled concrete screens are fixedly connected to the surfaces of the two screen fixing shafts.

[0017] Preferably, the four screen connection blocks are respectively fixedly connected to corresponding recycled concrete screens.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The screening device for recycled concrete processing scrapes the interior of the recycled concrete screening cylinder back and forth through the recycled concrete scraper and the recycled concrete disturbance plate, so as to facilitate screening of the recycled concrete screening cylinder. The recycled concrete scraper rotates inside the recycled concrete screening cylinder, so as to facilitate scraping off the recycled concrete aggregate inside the recycled concrete screening cylinder and discharge the recycled concrete aggregate, thereby improving the screening efficiency of the device, improving the practicability of the device, and improving the cleaning effect of the recycled concrete screening cylinder.

[0020] (2) The screening device for recycled concrete processing can facilitate the recycled concrete screen to screen the recycled concrete aggregate by rotating the recycled concrete screen and reciprocatingly compressing and resetting the spring. The screened recycled concrete aggregate can be discharged by adjusting the angle of the recycled concrete screen, thereby avoiding clogging of the recycled concrete screen and preventing the recycled concrete aggregate from staying on the recycled concrete screen, thereby improving the screening efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of a screening device for recycled concrete processing according to the utility model;

[0023] Figure 2 This is a schematic diagram of the utility model recycled concrete screen;

[0024] Figure 3 This is a schematic diagram of the utility model recycled concrete screening cylinder;

[0025] Figure 4 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the movable plate of the utility model.

[0027] Figure numerals: 1. Recycled concrete screening box; 2. Recycled concrete injection pipe; 3. Recycled concrete screening cylinder; 4. Arc plate; 5. Screening cylinder fixing rod; 6. Recycled concrete screen; 7. Recycled concrete guide frame; 8. Screen fixing shaft; 9. Recycled concrete guide plate; 10. Recycled concrete discharge plate; 11. Driving motor; 12. Rotating shaft; 13. Recycled concrete scraper; 14. Recycled concrete disturbance plate; 15. Electric telescopic rod; 16. Fixed plate; 17. Sliding rod; 18. Spring; 19. Movable plate; 20. Screen connecting block; 21. Connecting block fixing shaft. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] See also Figure 1-5 The utility model provides a technical solution: a screening device for recycled concrete processing, comprising a recycled concrete screening box 1, a recycled concrete injection pipe 2 is fixedly connected to the upper end of the recycled concrete screening box 1, a recycled concrete screening drum 3 is arranged inside the recycled concrete screening box 1, the front and rear sections of the recycled concrete screening drum 3 are respectively fixedly connected with screening drum fixing rods 5, the surface of the recycled concrete screening drum 3 is evenly provided with sieve holes, a screening assembly is arranged inside the recycled concrete screening drum 3, the screening assembly comprises a driving motor 11, the driving motor 11 is fixedly connected to the front end of the recycled concrete screening drum 3, the output end of the driving motor 11 is fixedly connected to a rotating shaft 12, the rotating shaft 12 is rotatably connected to the inside of the recycled concrete screening drum 3, a plurality of recycled concrete disturbance plates 14 and a plurality of recycled concrete scrapers 13 are fixedly connected to the surface of the rotating shaft 12, and the left and right ends of the recycled concrete screening drum 3 are respectively fixedly connected with recycled concrete guide plates 9.

[0033] An arc plate 4 is fixedly connected inside the recycled concrete screening box 1 , a recycled concrete guide frame 7 is fixedly connected inside the recycled concrete screening box 1 , and an inclined recycled concrete discharge plate 10 is fixedly connected inside the recycled concrete screening box 1 .

[0034] An electric telescopic rod 15 is fixedly connected to the inner wall of the recycled concrete screening box 1, and a fixed plate 16 is fixedly connected to the output end of the electric telescopic rod 15. Two sliding rods 17 are slidably connected inside the fixed plate 16, and a movable plate 19 is fixedly connected to the upper ends of the two sliding rods 17. Springs 18 are sleeved on the surfaces of the two sliding rods 17, and the upper and lower ends of the two springs 18 are respectively fixedly connected to the fixed plate 16 and the movable plate 19. A screen connecting block 20 is arranged inside the movable plate 19, and a connecting block fixed shaft 21 is fixedly connected inside the screen connecting block 20. The connecting block fixed shaft 21 is slidably connected to the movable plate 19. There are four electric telescopic rods 15, which are symmetrically arranged on the inner wall surface of the recycled concrete screening box 1.

[0035] The recycled concrete screening box 1 is internally rotatably connected with two screen fixing shafts 8 , the surfaces of the two screen fixing shafts 8 are fixedly connected with two recycled concrete screens 6 , and four screen connecting blocks 20 are fixedly connected with corresponding recycled concrete screens 6 .

[0036] When using the device, firstly, the recycled concrete aggregate is added from the recycled concrete injection pipe 2 into the interior of the recycled concrete screening box 1, the recycled concrete aggregate is screened by two recycled concrete screens 6, and the recycled concrete aggregate is blocked by the arc plate 4 to prevent the recycled concrete aggregate from falling directly into the recycled concrete screening cylinder 3 without passing through the two recycled concrete screens 6.

[0037] When the recycled concrete aggregate falls onto the recycled concrete screen 6, it will collide with the recycled concrete screen 6. During the collision, the recycled concrete screen 6 will rotate around the screen fixed shaft 8, and the recycled concrete screen 6 will squeeze the screen connecting block 20 and the connecting block fixed shaft 21. The screen connecting block 20 and the connecting block fixed shaft 21 squeeze the movable plate 19. The movable plate 19 drives the two sliding rods 17 to descend and compresses the spring 18. During the descent of the screen connecting block 20, it rotates and slides inside the movable plate 19. During the collision of the recycled concrete aggregate with the recycled concrete screen 6, the spring 18 will be compressed and reset many times, causing the recycled concrete screen 6 to vibrate, making it easier for the recycled concrete screen 6 to screen the recycled concrete aggregate and avoid clogging of the recycled concrete screen 6.

[0038] Starting the four electric telescopic rods 15 drives the fixed plate 16, the sliding rod 17, the spring 18, the movable plate 19, the screen connecting block 20 and the connecting block fixed shaft 21, thereby driving the recycled concrete screen 6 to rotate, so as to facilitate the adjustment of the angle of the recycled concrete screen 6. By adjusting the angle of the recycled concrete screen 6, the flow of the recycled concrete aggregate in the screening process can be better controlled, so that the recycled concrete aggregate passes through the recycled concrete screen 6 more quickly, thereby improving the screening efficiency. Adjusting the angle of the recycled concrete screen 6 can change the movement mode of the material on the screen, which helps to reduce the occurrence of the screen blockage phenomenon and keep the recycled concrete screen 6 unobstructed.

[0039] After the first screening of the recycled concrete aggregate is completed, the large particles are discharged from the left and right ends of the two recycled concrete screens 6, and the smaller particles fall from the sieve holes of the recycled concrete screen 6 through the diversion of the recycled concrete diversion frame 7 to the inside of the recycled concrete screening cylinder 3.

[0040] The drive motor 11 is started to drive the rotating shaft 12 to rotate, and the rotating shaft 12 drives the recycled concrete scraper 13 and the recycled concrete disturbance plate 14 to rotate inside the recycled concrete screening drum 3. The recycled concrete scraper 13 and the recycled concrete disturbance plate 14 reciprocate inside the recycled concrete screening drum 3 to disturb the recycled concrete aggregate in the recycled concrete screening drum 3, which is convenient for screening the recycled concrete aggregate. Small particles of recycled concrete aggregate fall from the sieve holes of the recycled concrete screening drum 3 to the surface of the recycled concrete discharge plate 10 and are discharged through the recycled concrete discharge plate 10.

[0041] The driving motor 11 is started to drive the recycled concrete scraper 13 and the recycled concrete disturbance plate 14 to rotate inside the recycled concrete screening cylinder 3. The recycled concrete scraper 13 pushes the recycled concrete aggregate inside the recycled concrete screening cylinder 3, so that the recycled concrete aggregate with smaller particles is discharged from the recycled concrete guide plate 9.

[0042] Furthermore, by reciprocatingly scraping the interior of the recycled concrete screening drum 3 by the recycled concrete scraper 13 and the recycled concrete disturbance plate 14, the recycled concrete screening drum is facilitated to be screened, and by rotating the recycled concrete scraper 13 inside the recycled concrete screening drum 3, the recycled concrete aggregate inside the recycled concrete screening drum 3 is scraped off and the recycled concrete aggregate is discharged, thereby improving the screening efficiency of the device, improving the practicability of the device, and improving the cleaning effect of the recycled concrete screening drum 3.

[0043] By rotating the recycled concrete screen 6 and reciprocating compression and resetting of the spring 18, the recycled concrete screen 6 can screen the recycled concrete aggregate. By adjusting the angle of the recycled concrete screen 6, the screened recycled concrete aggregate can be discharged, thereby avoiding clogging of the recycled concrete screen 6 and avoiding the recycled concrete aggregate from staying on the recycled concrete screen 6, thereby improving the screening efficiency of the device.

[0044] Working principle: When using the device, firstly, the recycled concrete aggregate is added into the interior of the recycled concrete screening box 1 from the recycled concrete injection pipe 2, the recycled concrete aggregate is screened by two recycled concrete screens 6, and the recycled concrete aggregate is blocked by the arc plate 4 to prevent the recycled concrete aggregate from falling directly into the recycled concrete screening cylinder 3 without passing through the two recycled concrete screens 6.

[0045] When the recycled concrete aggregate falls onto the recycled concrete screen 6, it will collide with the recycled concrete screen 6. During the collision, the recycled concrete screen 6 will rotate around the screen fixed shaft 8, and the recycled concrete screen 6 will squeeze the screen connecting block 20 and the connecting block fixed shaft 21. The screen connecting block 20 and the connecting block fixed shaft 21 squeeze the movable plate 19. The movable plate 19 drives the two sliding rods 17 to descend and compresses the spring 18. During the descent of the screen connecting block 20, it rotates and slides inside the movable plate 19. During the collision of the recycled concrete aggregate with the recycled concrete screen 6, the spring 18 will be compressed and reset many times, causing the recycled concrete screen 6 to vibrate, making it easier for the recycled concrete screen 6 to screen the recycled concrete aggregate and avoid clogging of the recycled concrete screen 6.

[0046] Starting the four electric telescopic rods 15 drives the fixed plate 16, the sliding rod 17, the spring 18, the movable plate 19, the screen connecting block 20 and the connecting block fixed shaft 21, thereby driving the recycled concrete screen 6 to rotate, so as to facilitate the adjustment of the angle of the recycled concrete screen 6. By adjusting the angle of the recycled concrete screen 6, the flow of the recycled concrete aggregate in the screening process can be better controlled, so that the recycled concrete aggregate passes through the recycled concrete screen 6 more quickly, thereby improving the screening efficiency. Adjusting the angle of the recycled concrete screen 6 can change the movement mode of the material on the screen, which helps to reduce the occurrence of the screen blockage phenomenon and keep the recycled concrete screen 6 unobstructed.

[0047] After the first screening of the recycled concrete aggregate is completed, the large particles are discharged from the left and right ends of the two recycled concrete screens 6, and the smaller particles fall from the sieve holes of the recycled concrete screen 6 through the diversion of the recycled concrete diversion frame 7 to the inside of the recycled concrete screening cylinder 3.

[0048] The drive motor 11 is started to drive the rotating shaft 12 to rotate, and the rotating shaft 12 drives the recycled concrete scraper 13 and the recycled concrete disturbance plate 14 to rotate inside the recycled concrete screening drum 3. The recycled concrete scraper 13 and the recycled concrete disturbance plate 14 reciprocate inside the recycled concrete screening drum 3 to disturb the recycled concrete aggregate in the recycled concrete screening drum 3, which is convenient for screening the recycled concrete aggregate. Small particles of recycled concrete aggregate fall from the sieve holes of the recycled concrete screening drum 3 to the surface of the recycled concrete discharge plate 10 and are discharged through the recycled concrete discharge plate 10.

[0049] The driving motor 11 is started to drive the recycled concrete scraper 13 and the recycled concrete disturbance plate 14 to rotate inside the recycled concrete screening cylinder 3. The recycled concrete scraper 13 pushes the recycled concrete aggregate inside the recycled concrete screening cylinder 3, so that the recycled concrete aggregate with smaller particles is discharged from the recycled concrete guide plate 9.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A screening device for recycled concrete processing, comprising a recycled concrete screening box (1), the upper end of which is fixedly connected to a recycled concrete injection pipe (2), and a recycled concrete screening cylinder (3) is arranged inside the recycled concrete screening box (1), characterized in that: The front and rear sections of the recycled concrete screening cylinder (3) are respectively fixedly connected with screening cylinder fixing rods (5); The surface of the recycled concrete screening cylinder (3) is evenly provided with screening holes, and a screening component is arranged inside the recycled concrete screening cylinder (3); The screening component comprises a driving motor (11), and the driving motor (11) is fixedly connected to the front end of the recycled concrete screening cylinder (3); The output end of the driving motor (11) is fixedly connected to a rotating shaft (12), the rotating shaft (12) is rotatably connected to the inside of the recycled concrete screening drum (3), and a plurality of recycled concrete disturbance plates (14) and a plurality of recycled concrete scrapers (13) are fixedly connected to the surface of the rotating shaft (12); Wherein, the left and right ends of the recycled concrete screening cylinder (3) are respectively fixedly connected with recycled concrete guide plates (9).

2. A screening device for recycled concrete processing according to claim 1, characterized in that: The recycled concrete screening box (1) is fixedly connected to an arc plate (4) inside, and a recycled concrete guide frame (7) is fixedly connected to the inside of the recycled concrete screening box (1); The interior of the recycled concrete screening box (1) is fixedly connected with an inclined recycled concrete discharge plate (10).

3. A screening device for recycled concrete processing according to claim 1, characterized in that: The inner wall of the recycled concrete screening box (1) is fixedly connected to an electric telescopic rod (15), the output end of the electric telescopic rod (15) is fixedly connected to a fixed plate (16), and the interior of the fixed plate (16) is slidably connected to two sliding rods (17); The upper ends of the two slide bars (17) are fixedly connected to a movable plate (19), the surfaces of the two slide bars (17) are sleeved with springs (18), and the upper and lower ends of the two springs (18) are fixedly connected to the fixed plate (16) and the movable plate (19) respectively; A screen connection block (20) is arranged inside the movable plate (19), a connection block fixed shaft (21) is fixedly connected inside the screen connection block (20), and the connection block fixed shaft (21) is slidably connected to the movable plate (19).

4. A screening device for recycled concrete processing according to claim 3, characterized in that: There are four electric telescopic rods (15), which are symmetrically arranged on the inner wall surface of the recycled concrete screening box (1).

5. The screening device for recycled concrete processing according to claim 1, characterized in that: The recycled concrete screening box (1) is internally rotatably connected to two screen fixing shafts (8), and the surfaces of the two screen fixing shafts (8) are fixedly connected to two recycled concrete screens (6).

6. A screening device for recycled concrete processing according to claim 3, characterized in that: The four screen connection blocks (20) are respectively fixedly connected to corresponding recycled concrete screens (6).

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