Automatic screening device for recycled aggregate of waste slag concrete

Abstract

The utility model provides an automatic screening device for recycled aggregate of waste slag concrete; it belongs to the field of concrete recycling; its technical points include a screening mechanism, the screening mechanism includes a spiral conveying cylinder, the outer side of the spiral conveying cylinder is provided with multiple rows of sieve holes in an annular array, and the outer side of the spiral conveying cylinder is symmetrically rotatably connected with a vertical plate; a dredging mechanism, the dredging mechanism includes connecting rods arranged in an annular array on the circumference of the spiral conveying cylinder, each group of the connecting rods corresponds to each row of the sieve holes respectively, and each group of the sieve holes is evenly fixedly connected with a dredging column corresponding to each group of the sieve holes on one side close to the spiral conveying cylinder, and each group of the connecting rods is symmetrically slidably connected with a guide rod inside; the utility model aims to provide an automatic screening device for recycled aggregate of waste slag concrete; it is used to reduce the probability of reduced screening effect due to blockage of the sieve holes.

Description

Technical Field

[0001] The utility model relates to the field of concrete regeneration, in particular to an automatic screening device for recycled aggregate of waste slag concrete. Background Art

[0002] Recycled concrete is made by crushing waste concrete to make recycled coarse aggregate and fine aggregate, which partially or completely replace natural coarse aggregate and fine aggregate. The aggregate obtained after crushing the waste concrete is recycled aggregate, which needs to be screened before use.

[0003] The current concrete recycled aggregate screening device, as described in the patent with announcement number CN212702882U, includes a workbench, a front support plate is fixedly connected to the front end of the upper end of the workbench, a rear support plate is fixedly connected to the rear end of the workbench, a transmission mechanism is movably connected between the front support plate and the rear support plate, a screening mechanism is transmission-connected to the transmission mechanism, the lower left and lower right parts of the screening mechanism are both transmission-connected to the support mechanism, the ends of the two support mechanisms are fixedly connected to the upper end of the workbench, a partition is provided on the front side of the support mechanism, the lower end of the partition is fixedly connected to the upper end of the workbench, a front hopper is provided between the partition and the front support plate, and the front hopper is interlaced and fixedly connected to the workbench.

[0004] With respect to the above-mentioned related technologies, the inventors believe that in the process of screening aggregates, some aggregates with the same size as the sieve holes are easily stuck in the sieve holes. Once the sieve holes are blocked to a large extent, the screening effect of the aggregates will be affected. Utility Model Content

[0005] The utility model aims to provide an automatic screening device for recycled aggregate of waste slag concrete to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic screening device for recycled aggregate of waste slag concrete, comprising

[0008] The screening mechanism comprises a spiral conveying cylinder, the outer side of which is provided with a plurality of rows of sieve holes in a circular array, and the outer side of which is symmetrically rotatably connected with a vertical plate;

[0009] A dredging mechanism, the dredging mechanism includes connecting rods arranged in a ring array on the circumference of the spiral conveying cylinder, each group of the connecting rods corresponds to each row of the sieve holes respectively, and each group of the sieve holes is evenly and fixedly connected on one side close to the spiral conveying cylinder with dredging columns corresponding to each group of the sieve holes respectively, and each group of the connecting rods is symmetrically and slidably connected with guide rods inside, and each group of the guide rods is fixedly connected to the spiral conveying cylinder, and each group of the guide rods is sleeved on the outer side of each group of the guide rods, and each group of the return springs is fixedly connected to the connecting rod and the spiral conveying cylinder at both ends, and two groups of guide rings are symmetrically sleeved on the outer side of the spiral conveying cylinder, and the two groups of guide rings are respectively fixedly connected to the vertical plates on both sides, and the inner top walls of the two groups of guide rings are fixedly connected with protrusions.

[0010] As a further solution of the utility model: it also includes a driving mechanism, which includes a motor, the output end of the motor is fixedly connected to a driving pulley, the outer side of the spiral conveying cylinder is fixedly connected to a driven pulley, and a belt is connected between the driven pulley and the driving pulley.

[0011] As a further solution of the utility model: a shielding plate fixedly connected to one end of the spiral conveying cylinder is provided on the side of the driven pulley away from the vertical plate, and a material receiving trough fixedly connected to the vertical plate is provided below the shielding plate.

[0012] As a further solution of the utility model: connecting plates are fixedly connected to both sides of the material receiving trough, and two groups of the connecting plates are fixedly connected to the vertical plates.

[0013] As a further solution of the utility model: a horizontal plate is fixedly connected to one side of the vertical plate, a hopper is fixedly passed through the interior of the horizontal plate, an output end of the hopper extends to the interior of the spiral conveying cylinder, and a support rod is symmetrically fixedly connected to the bottom of the horizontal plate.

[0014] As a further solution of the utility model: each group of the connecting rods is symmetrically fixedly connected to a side away from the spiral conveying cylinder with an isolation column, and each group of the isolation columns is movably connected to a ball on a side away from the connecting rod.

[0015] As a further solution of the utility model: each group of guide rods has one end away from the spiral conveying cylinder and is fixedly connected to a limit block.

[0016] As a further solution of the utility model: an isolation cover is fixedly connected between the two groups of guide rings, and the isolation cover is located on the top of the spiral conveying cylinder.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] After the utility model adopts the above structure, through the mutual cooperation of the reset spring, the connecting rod, the dredging column, the guide ring and the protrusion, the sieve holes can be driven to rotate during the rotation of the spiral conveying cylinder, and the guide rods and the connecting rods can be driven to rotate accordingly, so that the connecting rods can rotate along the inner wall of the guide ring. When the connecting rods rotate to the protrusions, the protrusions can push the corresponding connecting rods to move to one side of the spiral conveying cylinder. At the same time, the corresponding reset springs are compressed, so that the corresponding dredging columns are inserted into the corresponding rows of sieve holes, so that the aggregate stuck in the corresponding sieve holes can be pushed into the spiral conveying cylinder again, so as to realize automatic dredging of the sieve holes, thereby reducing the probability of reduced screening effect due to blockage of the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0020] Figure 1 It is a partial structural cross-sectional view of an automatic screening device for recycled aggregate of waste slag concrete.

[0021] Figure 2 An automatic screening device for recycled aggregate of waste slag concrete Figure 1 Schematic diagram of the A part structure.

[0022] Figure 3 This is a partial structural cross-sectional view from another perspective of an automatic screening device for recycled aggregate of waste slag concrete.

[0023] Figure 4 An automatic screening device for recycled aggregate of waste slag concrete Figure 3 Schematic diagram of the structure of part B.

[0024] In the figure: 1. screening mechanism; 101. spiral conveying cylinder; 102. vertical plate; 103. sieve hole; 104. shielding plate; 105. receiving trough; 106. connecting plate; 107. horizontal plate; 108. hopper; 109. supporting rod; 2. dredging mechanism; 201. connecting rod; 202. dredging column; 203. guide rod; 204. reset spring; 205. limit block; 206. guide ring; 207. bump; 208. isolation column; 209. ball; 210. isolation cover; 3. driving mechanism; 301. motor; 302. driving pulley; 303. belt; 304. driven pulley. DETAILED DESCRIPTION

[0025] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0026] See also Figure 1-4An automatic screening device for recycled aggregate of waste slag concrete comprises a screening mechanism 1, wherein the screening mechanism 1 comprises a spiral conveying cylinder 101, and the spiral conveying cylinder 101 is configured to convey the recycled aggregate of waste slag concrete discharged into the spiral conveying cylinder 101 when rotating. A horizontal plate 107 is fixedly connected to one side of the vertical plate 102, and a hopper 108 is fixedly connected to the interior of the horizontal plate 107, and the output end of the hopper 108 extends to the interior of the spiral conveying cylinder 101. The configuration of the hopper 108 can facilitate the addition of the screened recycled aggregate of waste slag concrete into the interior of the spiral conveying cylinder 101. A support rod 109 is symmetrically fixedly connected to the bottom of the horizontal plate 107, and the configuration of the support rod 109 and the horizontal plate 107 can support the hopper 108. The outer side of the spiral conveying cylinder 101 is symmetrically rotatably connected to the vertical plate 102, and the configuration of the vertical plate 102 can support the spiral conveying cylinder 101.

[0027] It also includes a driving mechanism 3, which includes a motor 301, the output end of the motor 301 is fixedly connected to a driving pulley 302, the outer side of the spiral conveying cylinder 101 is fixedly connected to a driven pulley 304, and a belt 303 is connected between the driven pulley 304 and the driving pulley 302. The motor 301 is used to drive the driving pulley 302 to rotate when starting the work, and when the driving pulley 302 rotates, it can drive the belt 303, the driven pulley 304 and the spiral conveying cylinder 101 to rotate accordingly, thereby realizing the driving of the spiral conveying cylinder 101. The outer side of the spiral conveying cylinder 101 is provided with multiple rows of sieve holes 103 in a circular array, and the setting of the sieve holes 103 can screen the waste slag concrete recycled aggregate discharged into the spiral conveying cylinder 101. A shielding plate 104 fixedly connected to one end of the spiral conveyor cylinder 101 is provided on the side of the driven pulley 304 away from the vertical plate 102. The shielding plate 104 is provided to shield the driven pulley 304 to reduce the probability of aggregate discharged from the spiral conveyor cylinder 101 splashing into the driven pulley 304.

[0028] A material receiving trough 105 fixedly connected to the vertical plate 102 is provided below the shielding plate 104. The material receiving trough 105 is used to guide the aggregate discharged from the spiral conveying cylinder 101. Connecting plates 106 are fixedly connected to both sides of the material receiving trough 105. Two groups of connecting plates 106 are fixedly connected to the vertical plate 102. The setting of the connecting plates 106 can play an auxiliary supporting role for the material receiving trough 105, thereby improving the installation stability of the material receiving trough 105. The dredging mechanism 2 includes connecting rods 201 arranged in an annular array on the side of the spiral conveying cylinder 101. The interior of each group of connecting rods 201 is symmetrically slidably connected with guide rods 203. Each group of guide rods 203 is fixedly connected to the spiral conveying cylinder 101. The setting of the guide rods 203 can guide the sliding of the connecting rods 201. The end of each group of guide rods 203 away from the spiral conveying cylinder 101 is fixedly connected to a limit block 205. The setting of the limit block 205 can limit the sliding of the guide rods 203 to reduce the probability of the connecting rod 201 detaching from the guide rods 203.

[0029] Each group of connecting rods 201 corresponds to each row of sieve holes 103, and a dredging column 202 corresponding to each group of sieve holes 103 is evenly fixedly connected to one side of each group of sieve holes 103 close to the spiral conveying cylinder 101. When the dredging column 202 is inserted into the inside of the sieve hole 103, the aggregate stuck in the sieve hole 103 can be pushed out, thereby achieving the dredging of the sieve hole 103. The outer side of each group of guide rods 203 is sleeved with a return spring 204, and the two ends of each group of return springs 204 are fixedly connected to the connecting rod 201 and the spiral conveying cylinder 101, respectively. The specific return spring 204 is in a compressed state, so that the elastic action of the return spring 204 can push the connecting rod 201 to move to the side away from the spiral conveying cylinder 101, so that the dredging column 202 is separated from the inside of the sieve hole 103, so as to ensure that the sieve hole 103 can screen the aggregate. Two groups of guide rings 206 are symmetrically sleeved on the outer side of the spiral conveying cylinder 101, and an isolation cover 210 is fixedly connected between the two groups of guide rings 206. The isolation cover 210 is located on the top of the spiral conveying cylinder 101. The setting of the isolation cover 210 can shield the spiral conveying cylinder 101 to reduce the overflow of dust during the aggregate screening process, thereby reducing the pollution to the surrounding environment.

[0030] The two groups of guide rings 206 are fixedly connected to the vertical plates 102 on both sides, and the inner top walls of the two groups of guide rings 206 are fixedly connected with protrusions 207. When the spiral conveying cylinder 101 rotates, it can drive each group of connecting rods 201 to rotate accordingly. When the connecting rod 201 rotates to the protrusion 207, the protrusion 207 can push the connecting rod 201 and the dredging column 202 to move to one side of the spiral conveying cylinder 101, so that the guide rod 203 is inserted into the inside of the sieve hole 103 to achieve automatic dredging of the sieve hole 103. The side of each group of connecting rods 201 away from the spiral conveying cylinder 101 is symmetrically fixedly connected with isolation columns 208, and the side of each group of isolation columns 208 away from the connecting rod 201 is movably connected with balls 209. The setting of the isolation columns 208 and the balls 209 can separate the connecting rod 201 from the guide ring 206 and the guide ring 206 to reduce the wear between the connecting rod 201, the guide ring 206 and the protrusion 207.

[0031] When in use, the motor 301 is started, so that the motor 301 can drive the spiral conveyor drum 101 to rotate through the transmission of the active pulley 302, the belt 303 and the driven pulley 304 when starting work, and then the screened waste slag concrete recycled aggregate is poured into the interior of the hopper 108, and then discharged into the interior of the spiral conveyor drum 101 through the hopper 108, so that the continuously rotating spiral conveyor drum 101 can transport the discharged waste slag concrete recycled aggregate to the other side. During the transportation process, each group of sieve holes 103 can screen the waste slag concrete recycled aggregate, so that the smaller aggregate can be screened out, and the larger aggregate can be output through the other side of the spiral conveyor drum 101, so as to realize the automatic screening of the waste slag concrete recycled aggregate, and the rotation of the sieve holes 103 can drive each group of guide rods 203 and Each group of connecting rods 201 rotates accordingly, so that each group of balls 209 can roll along the inner wall of the guide ring 206. When the balls 209 roll to the protrusion 207, the protrusion 207 can push the corresponding balls 209 and connecting rods 201 to move to one side of the spiral conveying tube 101. At the same time, the corresponding return springs 204 are compressed, so that the corresponding dredging columns 202 are inserted into the corresponding rows of sieve holes 103, so that the aggregate stuck in the corresponding sieve holes 103 can be pushed into the spiral conveying tube 101 again, thereby realizing automatic dredging of the sieve holes 103. When the balls 209 are separated from the protrusions 207, the return springs 204 restore their deformation, thereby pushing the corresponding connecting rods 201 to move to the side away from the spiral conveying tube 101, so that the corresponding groups of dredging columns 202 are separated from the corresponding rows of the groups of sieve holes 103.

[0032] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. An automatic screening device for recycled aggregate from waste slag concrete, characterized in that: include A screening mechanism (1), the screening mechanism (1) comprising a spiral conveying cylinder (101), the outer side of the spiral conveying cylinder (101) being provided with a plurality of rows of sieve holes (103) in a circular array, and the outer side of the spiral conveying cylinder (101) being symmetrically rotatably connected to a vertical plate (102); The dredging mechanism (2) comprises connecting rods (201) arranged in an annular array on the circumference of the spiral conveying cylinder (101), each group of the connecting rods (201) respectively corresponds to each row of the sieve holes (103), and each group of the sieve holes (103) is evenly and fixedly connected to a side close to the spiral conveying cylinder (101) with dredging columns (202) respectively corresponding to each group of the sieve holes (103), and each group of the connecting rods (201) is symmetrically and slidably connected to a guide rod (203) inside. 03) are fixedly connected to the spiral conveying cylinder (101), the outer side of each group of the guide rods (203) is sleeved with a reset spring (204), and the two ends of each group of the reset springs (204) are respectively fixedly connected to the connecting rod (201) and the spiral conveying cylinder (101), and the outer side of the spiral conveying cylinder (101) is symmetrically sleeved with two groups of guide rings (206), and the two groups of guide rings (206) are respectively fixedly connected to the vertical plates (102) on both sides, and the inner top walls of the two groups of guide rings (206) are fixedly connected with protrusions (207).

2. The automatic screening device for recycled aggregate of waste slag concrete according to claim 1 is characterized in that: The invention also comprises a driving mechanism (3), wherein the driving mechanism (3) comprises a motor (301), the output end of the motor (301) is fixedly connected to a driving pulley (302), the outer side of the spiral conveying cylinder (101) is fixedly connected to a driven pulley (304), and a belt (303) is connected between the driven pulley (304) and the driving pulley (302) in a transmission manner.

3. The automatic screening device for recycled aggregate of waste slag concrete according to claim 2 is characterized in that: A shielding plate (104) fixedly connected to one end of the spiral conveying cylinder (101) is provided on the side of the driven pulley (304) away from the vertical plate (102), and a material receiving trough (105) fixedly connected to the vertical plate (102) is provided below the shielding plate (104).

4. The automatic screening device for recycled aggregate of waste slag concrete according to claim 3 is characterized in that: Both sides of the material receiving trough (105) are fixedly connected with connecting plates (106), and two groups of connecting plates (106) are fixedly connected to the vertical plate (102).

5. The automatic screening device for recycled aggregate from waste slag concrete according to claim 1 is characterized in that: A horizontal plate (107) is fixedly connected to one side of the vertical plate (102), a hopper (108) is fixedly passed through the interior of the horizontal plate (107), an output end of the hopper (108) extends to the interior of the spiral conveying cylinder (101), and a support rod (109) is symmetrically fixedly connected to the bottom of the horizontal plate (107).

6. The automatic screening device for recycled aggregate from waste slag concrete according to claim 1 is characterized in that: Each group of the connecting rods (201) is symmetrically fixedly connected to a separation column (208) on one side away from the spiral conveying cylinder (101), and each group of the separation columns (208) is movably connected to a ball (209) on one side away from the connecting rods (201).

7. The automatic screening device for recycled aggregate from waste slag concrete according to claim 1 is characterized in that: One end of each group of guide rods (203) away from the spiral conveying cylinder (101) is fixedly connected to a limiting block (205).

8. The automatic screening device for recycled aggregate of waste slag concrete according to claim 1 is characterized in that: An isolation cover (210) is fixedly connected between the two groups of guide rings (206), and the isolation cover (210) is located on the top of the spiral conveying cylinder (101).

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