Mechanical pre-sorting device for construction waste

Abstract

This utility model relates to a mechanical pre-sorting device for construction waste, including a vibrating feeder. A transverse sorting mechanism is located below the bottom outlet of the vibrating feeder. The sorting mechanism includes a rotating roller, with a roller sleeve fixedly attached to the roller. Several annularly distributed hanging rods are provided on the outer wall of the roller sleeve. Each hanging rod includes a cylindrical rod body with a stud formed at its inner end, which is screwed and fixed to the roller sleeve. A longitudinally vertical groove extending through the outer end of the rod body is formed at the center of the rod body. Both ends of the rotating roller extend out of the roller sleeve and are connected to inclined connecting arms via bearings. The upper ends of the connecting arms are fixed to the side walls of the vibrating feeder. This pre-sorting device modifies the structure of the hanging rods and adds cutting blades to cut woven bags or ropes to remove them from the hanging rods, effectively achieving the rejection of woven bags or ropes.

Description

Technical fields:

[0001] This utility model relates to the technical field of sorting devices, and more specifically to a mechanical pre-sorting device for construction waste. Background technology:

[0002] Construction waste pre-sorting is the first step in construction waste treatment. It aims to effectively separate different types of waste through preliminary classification and screening, laying the foundation for subsequent resource utilization and harmless treatment. The goal is to improve resource recycling rates by separating recyclable materials such as steel bars, wood, and plastics for reuse, reducing resource waste. Simultaneously, it can reduce environmental pollution by treating hazardous substances separately, minimizing their impact on the environment. Furthermore, it can optimize subsequent processing steps, such as reducing the burden on subsequent crushing and screening processes, thus improving processing efficiency. Currently, the main task of construction waste pre-sorting is to remove debris such as woven bags or ropes from the construction waste; otherwise, removing these items after subsequent cutting and crushing would be even more troublesome.

[0003] Existing pre-sorting mainly relies on manual labor, but manual sorting is inefficient and labor-intensive. Therefore, some have proposed using a stepped vibrating feeder. The vibrating feeder has a roller at its outlet, and many hanging rods are installed on the roller. The vibrating feeder disperses the output, and woven bags or ropes are hung on the hanging rods and rotate around the roller as the hanging rods rotate, so that the woven bags or ropes are output from the rear of the roller. However, sometimes the woven bags or ropes get tangled on the hanging rods and cannot be removed. Therefore, corresponding improvements need to be designed to effectively remove woven bags or ropes. Utility model content:

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a mechanical pre-sorting device for construction waste. The pre-sorting device modifies the structure of the hanging rod and adds a cutting blade to cut the woven bags or ropes to remove them from the hanging rod, effectively removing the woven bags or ropes.

[0005] A mechanical pre-sorting device for construction waste includes a vibrating feeder. A transverse sorting mechanism is located below the bottom outlet of the vibrating feeder. The sorting mechanism includes a rotating roller with a sleeve fixedly attached to it. Several annularly distributed hanging rods are provided on the outer wall of the sleeve. Each hanging rod includes a cylindrical rod body with a stud formed at its inner end, which is screwed and fixed to the sleeve. A longitudinally vertical groove penetrating the outer end of the rod body is formed at its center. Both ends of the rotating roller extend out of the sleeve and are connected to inclined connecting arms via bearings. The upper ends of the connecting arms are fixedly attached to the side walls of the vibrating feeder. One end of the rotating roller extends out of the connecting arm and is fitted with a sprocket. The rotating roller is connected to a motor via the sprocket drive, and the motor is fixedly attached to the side wall of the vibrating feeder.

[0006] The roller has several obliquely placed cutting blades positioned below it, facing the grooves on the hanging rod. The lower ends of the cutting blades are inserted and fixed to a vertical blade holder, and the upper ends of the blade holder are fixed to the two side walls of the vibrating feeder. A receiving hopper is located directly below the cutting blades. The rear side of the receiving hopper is fixed to a rectangular mounting platform. The support legs of the vibrating feeder are fixed to the mounting platform. A longitudinal impurity removal channel is formed inside the mounting platform, which is connected to the receiving hopper. The lower end face of the receiving hopper is oblique and is fixed to an air inlet pipe connected to the impurity removal channel. The inlet of the air inlet pipe is fixed to the outlet of the centrifugal fan.

[0007] Preferably, the hanging rods on the rear side of the rotating roller are distributed directly below the vibrating feeder, and the hanging rods on the front side of the rotating roller are distributed on the front side of the vibrating feeder; a regular hexagonal limiting head is formed between the hanging rods and the stud.

[0008] Preferably, the hanging rod on the roller sleeve consists of two sets of staggered first and second support rods. The first and second support rods are distributed in a ring along the central axis of the roller and are also linearly and evenly distributed in the transverse direction on the roller sleeve. The second support rod is set between adjacent first support rods, and the projections of the second support rod and the first support rod in the longitudinal vertical plane have an included angle.

[0009] Preferably, the thickness of the cutting blade is less than the width of the groove on the hanging rod, the center distance from the upper end of the cutting blade to the rotating roller is less than the center distance from the outer end of the hanging rod to the rotating roller, and the center distance from the receiving hopper to the rotating roller is less than the center distance from the outer end of the hanging rod to the rotating roller.

[0010] Preferably, the cutter holder includes two connecting rods fixed to the vibrating feeder, with a transverse rod fixed to the lower end of the connecting rods, and the lower end of the cutter holder inserted and fixed to the rod.

[0011] A transverse support beam is fixed to the connecting rod on the upper side of the frame. Several transversely distributed diagonal braces are fixed to the support beam. The lower end of the diagonal braces is formed with a groove. The back of the cutting blade at the front is inserted into the groove of the support beam of the diagonal brace and abuts against the support beam.

[0012] Preferably, the thickness of the diagonal brace is the same as the width of the groove cut on the hanging rod; the center distances of the connecting rod and the rod frame to the rotating roller are both smaller than the center distances of the outer end of the hanging rod to the rotating roller.

[0013] Preferably, the lower end of the cutting blade is formed with an insertion hole and inserted into the rod frame, and a pin is inserted into the rod frame and inserted into the insertion hole of the cutting blade.

[0014] The beneficial effects of this utility model are as follows:

[0015] This pre-sorting device modifies the structure of the hanging rod and adds a cutting blade to cut the woven bags or ropes to remove them from the hanging rod, effectively removing the woven bags or ropes. Attached image description:

[0016] Figure 1 This is a side view of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the internal sorting mechanism of this utility model;

[0018] Figure 3 This is a top view of the internal sorting mechanism of this utility model.

[0019] In the diagram: 1. Vibrating feeder; 2. Sorting mechanism; 21. Rotary roller; 211. Rotary roller; 22. Roller sleeve; 23. Hanging rod; 231. Stud; 232. Cutting groove; 233. Limiting head; 24. Air nozzle; 34. Rear cover; 341. Rear support rod; 342. Rear lever; 343. Rear guide groove; 4. Knife holder; 41. Connecting rod; 42. Rod frame; 43. Pin; 44. Diagonal brace; 45. Support beam; 5. Cutting blade; 6. Mounting platform; 7. Receiving hopper; 8. Air inlet pipe; 9. Centrifugal fan. Detailed implementation method:

[0020] Example: See Figures 1 to 3 As shown, a mechanical pre-sorting device for construction waste includes a vibrating feeder 1. A transverse sorting mechanism 2 is located below the bottom outlet of the vibrating feeder 1. The sorting mechanism 2 includes a rotating roller 21, with a roller sleeve 22 fixedly attached to the roller 21. Several annularly distributed hanging rods 23 are provided on the outer wall of the roller sleeve 22. Each hanging rod 23 includes a cylindrical rod body, with a stud 231 formed at the inner end of the rod body. The stud 231 is screwed and fixed to the roller sleeve 22. A longitudinally upright... A slot 232 is cut through the outer end of the rod body. The two ends of the rotating roller 21 extend out of the roller sleeve 22 and are connected to the inclined connecting arm 3 through bearings. The upper ends of the connecting arm 3 are fixed to the two side walls of the vibrating feeder 1. A sprocket is sleeved and fixedly connected to one end of the rotating roller 21 extending out of the connecting arm 3. The rotating roller 21 is connected to the motor through the sprocket drive. The motor is fixed to the side wall of the vibrating feeder 1. A keyway 211 is provided at the end of the rotating roller 21. The rotating roller 21 and the sprocket are connected by a key.

[0021] The roller 21 has several obliquely placed cutting blades 5 positioned below and opposite the grooves 232 on the hanging rod 23. The cutting blades 5 have their blades facing downwards, and their lower ends are inserted and fixed to the vertical blade holder 4. The upper ends of the blade holder 4 are fixed to the two side walls of the vibrating feeder 1. A receiving hopper 7 is located directly below the cutting blades 5. The rear side of the receiving hopper 7 is fixed to a rectangular mounting platform 6. The support legs of the vibrating feeder 1 are fixed to the mounting platform 6. A longitudinal impurity removal channel is formed inside the mounting platform 6, which is connected to the receiving hopper 7. The lower end face of the receiving hopper 7 is oblique and is fixed to an air inlet pipe 8, which is connected to the impurity removal channel. The inlet of the air inlet pipe 8 is fixed to the outlet of the centrifugal fan 9.

[0022] The hanging rods 23 on the rear side of the rotating roller 21 are distributed directly below the vibrating feeder 1, and the hanging rods 23 on the front side of the rotating roller 21 are distributed on the front side of the vibrating feeder 1; a regular hexagonal limiting head 233 is formed between the hanging rod 23 and the stud 231, and the limiting head 233 facilitates the installation and removal of the hanging rod 23 by using tools.

[0023] The hanging rods 23 on the roller sleeve 22 consist of two sets of staggered first support rods a and second support rods b. The first support rods a and second support rods b are arranged in a ring along the central axis of the rotating roller 21 and are also linearly and evenly distributed laterally on the roller sleeve 22. The second support rods b are arranged between adjacent first support rods a, and the projections of the second support rods b and the first support rods a in the longitudinal vertical plane have an included angle. Figure 2 As shown, the projections of the second support rod b and the first support rod a in the longitudinal vertical plane are each provided in three sets, with the clamps between them at 60 degrees. The advantage of dividing them into two sets is that it can increase the distance between adjacent hanging rods 23 on the rotating roller 21, making it easier for large pieces of construction waste to pass through, but it can block debris such as woven bags and ropes.

[0024] The thickness of the cutting blade 5 is less than the width of the groove 232 on the hanging rod 23. The center distance from the upper end of the cutting blade 5 to the rotating roller 21 is less than the center distance from the outer end of the hanging rod 23 to the rotating roller 21. The center distance from the receiving hopper 7 to the rotating roller 21 is less than the center distance from the outer end of the hanging rod 23 to the rotating roller 21. During operation, the cutting blade 5 needs to cut the rope hanging on the hanging rod 23 through the groove 232 of the hanging rod 23, thereby allowing the rope and other structures to detach from the cutting blade 5.

[0025] The tool holder 4 includes two connecting rods 41 fixed to the vibrating feeder 1. The lower end of the connecting rods 41 is fixed to a transverse rod frame 42, and the lower end of the tool holder 4 is inserted and fixed to the rod frame 42.

[0026] A transverse support beam 45 is fixed to the connecting rod 41 on the upper side of the frame 42. Several transversely distributed diagonal braces 44 are fixed to the support beam 45. The lower end of the diagonal braces 44 is formed with a groove. The back of the cutting blade 5 is inserted into the groove of the support beam 45 of the diagonal brace 44 and abuts against the support beam 45. The diagonal braces 44 support the cutting blade 5 to prevent it from breaking.

[0027] The thickness of the diagonal brace 44 is the same as the width of the groove 232 on the hanging rod 23; the center distances from the connecting rod 41 and the rod frame 42 to the rotating roller 21 are both less than the center distance from the outer end of the hanging rod 23 to the rotating roller 21, for the same reason, to avoid interference between the diagonal brace 44 and the hanging rod 23.

[0028] The lower end of the cutting blade 5 is formed with an insertion hole and is inserted into the rod 42. A pin 43 is inserted into the rod 42 and inserted into the insertion hole of the cutting blade 5. The cutting blade 5 can be removed by pulling out the pin 43, which facilitates the installation and removal of the cutting blade 5.

[0029] Working principle: This structure is a mechanical pre-sorting device for construction waste. Its main technical feature is that a groove 232 is opened on the hanging rod 23, and a cutting blade 5 is set below the rear of the rotating roller 21. When the hanging rod 23 rotates together, the cutting blade 5 can enter the groove 232 of the hanging rod 23. After passing through the groove 232, the woven bags or woven ropes hanging on the hanging rod 23 are cut. After the woven bags or woven ropes break, they can easily fall off the hanging rod 23 and into the receiving hopper 7.

[0030] After the woven bag or rope enters the receiving hopper 7, it slides down to the outlet of the air inlet pipe 8, and is blown away by the wind through the impurity removal channel in the mounting platform 6.

[0031] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A mechanical pre-sorting device for construction waste, comprising a vibrating feeder (1), a transverse sorting mechanism (2) provided below the bottom outlet of the vibrating feeder (1), the sorting mechanism (2) comprising a rotating roller (21), a roller sleeve (22) fixedly connected to the rotating roller (21), and a plurality of annularly distributed hanging rods (23) provided on the outer wall of the roller sleeve (22), characterized in that: The hanging rod (23) includes a cylindrical rod body, with a stud (231) formed at the inner end of the rod body. The stud (231) is screwed and fixed on the roller sleeve (22). A longitudinally vertical groove (232) is formed in the center of the rod body and penetrates the outer end of the rod body. The two ends of the rotating roller (21) extend out of the roller sleeve (22) and are connected to the inclined connecting arm (3) through bearings. The upper ends of the connecting arm (3) are fixed to the two side walls of the vibrating feeder (1). One end of the rotating roller (21) extends out of the connecting arm (3) and is fitted with a sprocket. The rotating roller (21) is connected to the motor through the sprocket drive. The motor is fixed to the side wall of the vibrating feeder (1). The roller (21) is provided with several obliquely placed cutting blades (5) that are directly opposite the cutting groove (232) on the hanging rod (23). The lower end of the cutting blades (5) is inserted and fixed on the vertical knife holder (4). The upper end of the knife holder (4) is fixed on the two side walls of the vibrating feeder (1). The receiving hopper (7) is provided directly below the cutting blades (5). The rear side of the receiving hopper (7) is fixed on the rectangular mounting platform (6). The support legs on the vibrating feeder (1) are fixed on the mounting platform (6). The mounting platform (6) has a longitudinal impurity removal channel that is connected to the receiving hopper (7). The lower end face of the receiving hopper (7) is oblique and is fixedly connected to the air inlet pipe (8) that is connected to the impurity removal channel. The inlet of the air inlet pipe (8) is fixedly connected to the outlet of the centrifugal fan (9).

2. The mechanical pre-sorting device for construction waste according to claim 1, characterized in that: The hanging rods (23) on the rear side of the rotating roller (21) are located directly below the vibrating feeder (1), and the hanging rods (23) on the front side of the rotating roller (21) are located on the front side of the vibrating feeder (1); a regular hexagonal limiting head (233) is formed between the hanging rods (23) and the studs (231).

3. The mechanical pre-sorting device for construction waste according to claim 2, characterized in that: The hanging rod (23) on the roller sleeve (22) consists of two sets of staggered first support rods (a) and second support rods (b). The first support rods (a) and second support rods (b) are distributed in a ring along the central axis of the rotating roller (21) and are also linearly and evenly distributed in the transverse direction on the roller sleeve (22). The second support rod (b) is set between adjacent first support rods (a), and the projections of the second support rod (b) and the first support rod (a) in the longitudinal vertical plane have an included angle.

4. The mechanical pre-sorting device for construction waste according to claim 2, characterized in that: The thickness of the cutting blade (5) is less than the width of the groove (232) on the hanging rod (23), the center distance from the upper end of the cutting blade (5) to the rotating roller (21) is less than the center distance from the outer end of the hanging rod (23) to the rotating roller (21), and the center distance from the receiving hopper (7) to the rotating roller (21) is less than the center distance from the outer end of the hanging rod (23) to the rotating roller (21).

5. A mechanical pre-sorting device for construction waste according to claim 4, characterized in that: The tool holder (4) includes two connecting rods (41) fixed to the vibrating feeder (1). The lower end of the connecting rods (41) is fixed to a transverse rod frame (42), and the lower end of the tool holder (4) is inserted and fixed to the rod frame (42). A transverse support beam (45) is fixed to the connecting rod (41) on the upper side of the frame (42). Several transversely distributed diagonal braces (44) are fixed to the support beam (45). The lower end of the diagonal brace (44) is formed with a groove. The back of the cutting blade (5) is inserted into the groove of the support beam (45) of the diagonal brace (44) and abuts against the support beam (45).

6. The mechanical pre-sorting device for construction waste according to claim 5, characterized in that: The thickness of the diagonal brace (44) is the same as the width of the groove (232) on the hanging rod (23); the center distances from the connecting rod (41) and the rod frame (42) to the rotating roller (21) are both smaller than the center distances from the outer end of the hanging rod (23) to the rotating roller (21).

7. A mechanical pre-sorting device for construction waste according to claim 5, characterized in that: The lower end of the cutting blade (5) is formed with a hole and inserted into the rod frame (42). A pin (43) is inserted into the rod frame (42) and inserted into the hole of the cutting blade (5).

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