Sorting device for preparing regenerated composite admixture by using construction waste

Abstract

The utility model discloses a sorting device for preparing a regenerated composite admixture by using construction waste, which relates to the technical field of construction waste treatment and comprises an inclined machine body, a screening cylinder mounted on the machine body and used for sorting the construction waste with different particle sizes, and a driving mechanism mounted on the machine body and used for driving the screening cylinder to rotate, the screening cylinder is formed by combining a plurality of screen mesh cylinders with the hole diameters sequentially arranged from small to large. The screening barrel can be driven to rotate through driving of the motor so as to screen and sort construction waste such as fine sand, gravel blocks and bricks with different particle sizes, the moving speed of the construction waste fed into the device can be reduced through the spiral blades, the construction waste can be guided, the construction waste can make full contact with the screening barrel, and the construction waste can be effectively separated. And in addition, the machine body is matched with the baffle to block raised dust, so that the dust cannot drift to the outside air, and the device is more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste treatment, in particular to a sorting device for preparing recycled composite admixtures using construction waste. Background Art

[0002] Construction waste refers to the waste generated after the demolition and renovation of old concrete houses, such as concrete blocks and sand and gravel blocks. In order to improve environmental protection requirements, some usable construction waste is usually crushed into recycled composite admixtures for recycling. In the process of handling waste, after materials such as steel bars have been removed, they need to be crushed by crushing equipment until they meet the recyclable standards. Different types of construction waste have different requirements for the size of the crushing, so different types of construction waste need to be sorted before crushing.

[0003] The patent with announcement number CN210022772U discloses "a construction waste sorting device, including a screening drum, an outer cover plate and a mounting frame structure. A rotating shaft is rotatably arranged inside the screening drum. The structural arrangement is simple, and support structures are arranged on both sides of the rotating shaft to support the motor and the second bearing, so that the rotation of the rotating shaft is more stable. The screening drum and the outer cover plate constitute a sorting structure. The two are arranged in coordination to facilitate sorting and can provide good protection to avoid screening waste being lost, dust flying around, etc. The mounting frame structure is installed on the outside of the outer cover plate. On the one hand, it can support the outer cover plate, and on the other hand, it helps to rotate the screening drum, making the operation smoother."

[0004] With respect to the above-mentioned related technologies, the inventors believe that when the screening drum is rotating during sorting, dust in the construction waste will be stirred up, causing the dust to float into the outside air through the openings at both ends of the device, polluting the surrounding environment. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a sorting device for preparing recycled composite admixtures using construction waste. The specific technical scheme is as follows:

[0006] A sorting device for preparing recycled composite admixtures using construction waste comprises an inclined body, a screening drum installed on the body and used for sorting construction waste of different particle sizes, and a driving mechanism installed on the body and used for driving the screening drum to rotate. The screening drum is composed of a plurality of screen drums arranged in sequence from small to large apertures, and a spiral blade for slowing down and guiding the movement of the construction waste is fixedly provided on the inner wall of the screening drum. A blocking mechanism is provided at the bottom end of the body, and the blocking mechanism comprises a baffle rotatably arranged in an opening of the body for blocking dust stirred up when the screening drum rotates, and an electric push rod rotatably arranged between the bottom end of the body and the outer wall of the baffle.

[0007] By adopting the above technical solution, the machine body and the baffle can block the stirred dust, so that the dust will not float into the outside air.

[0008] Optionally, the aperture size of the screening drum gradually increases from the top to the bottom of the body, the top of the screening drum cooperates and abuts against the inner wall of the body, a feed pipe for feeding construction waste into the screening drum is fixedly provided at the top of the body, and a feed cover is movably provided inside the top of the feed pipe.

[0009] By adopting the above technical solution, people can feed the construction waste into the top of the screening cylinder through the feed pipe, and the feed cover plate can close the feed pipe.

[0010] Optionally, the driving mechanism includes a motor fixed on the outer wall of the top end of the body, a rotating rod fixed on the output end of the motor and located inside the screening drum, and a plurality of connecting frames are fixed between the outer wall of the rotating rod and the inner wall of the screening drum.

[0011] By adopting the above technical solution, the screening drum can be driven by a motor to rotate to screen and sort construction waste such as fine sand, gravel and bricks of different particle sizes.

[0012] Optionally, a plurality of spacer rings are fixedly provided in the body for separating the multiple screen cylinders in the screening cylinder in sequence, a bearing is fixedly provided in the spacer ring, the screening cylinder is rotatably connected in the bearing, a plurality of discharge hoppers for respectively discharging construction waste of different particle sizes are fixedly provided at the bottom of the body, and a discharge cover plate is movably provided at the bottom of the discharge hopper.

[0013] By adopting the above technical solution, the spacer ring can separate the construction waste of different particle sizes to be screened, and the bearing reduces the friction and resistance when the screening drum rotates.

[0014] Optionally, a fixing plate is fixedly provided at the bottom end of the machine body, and the electric push rod is rotatably connected between the bottom of the fixing plate and the outer wall of the baffle.

[0015] By adopting the above technical solution, the fixing plate can connect the electric push rod and the baffle.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. Driven by a motor, the screening drum can be driven to rotate to screen and sort construction waste such as fine sand, gravel and bricks of different particle sizes. The spiral blades can slow down the movement speed of the construction waste sent into the device and guide the construction waste so that the construction waste can fully contact the screening drum to improve the device's sorting effect on construction waste. The machine body and the baffle can block the stirred dust so that the dust will not drift into the outside air, which is more environmentally friendly.

[0018] 2. The extension and retraction of the electric push rod can drive the baffle to rotate, making it convenient for people to quickly open and close the opening of the machine body. The spacer ring can separate the construction waste of different particle sizes to be screened. The bearing reduces the friction and resistance when the screening drum rotates. The feed cover and the discharge cover can seal the feed pipe and the discharge hopper, so that dust will not float into the outside air through the feed pipe and the discharge hopper during sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a side view connection diagram of the screening cylinder and the spiral blade of the utility model.

[0022] Explanation of the reference numerals: 1. Machine body; 11. Feed pipe; 12. Feed cover plate; 13. Discharge hopper; 14. Discharge cover plate; 15. Spacer ring; 16. Bearing; 2. Screening cylinder; 21. Spiral blade; 3. Motor; 31. Rotating rod; 32. Connecting frame; 4. Baffle; 41. Electric push rod; 42. Fixed plate. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The utility model is described in further detail.

[0024] The utility model discloses a separation device for preparing recycled composite admixtures using construction waste, referring to Figure 1-2 It includes an inclined body 1, a screening drum 2 installed on the body 1 and used to sort construction waste of different particle sizes, and a driving mechanism installed on the body 1 and used to drive the screening drum 2 to rotate. A plurality of supporting legs are fixedly provided at the bottom edge of the body 1. The inclined setting of the body 1 makes it convenient for the driving mechanism to drive the screening drum 2 to rotate, so that the construction waste in the screening drum 2 can slowly move downward with gravity, so as to move and transport the construction waste.

[0025] Reference Figure 1-2 The screening cylinder 2 is composed of a plurality of screen cylinders arranged in order from small to large apertures. The aperture size of the screening cylinder 2 gradually increases from the top to the bottom of the machine body 1. The top of the screening cylinder 2 is in contact with the inner wall of the machine body 1, so that the screening cylinder 2 can screen fine sand, gravel, bricks and other construction waste of different particle sizes from top to bottom.

[0026] Reference Figure 1-2A feed pipe 11 for feeding construction waste into the screening cylinder 2 is fixedly provided at the top of the machine body 1. The feed pipe 11 is communicated with the inside of the screening cylinder 2, so that people can feed the construction waste into the top of the screening cylinder 2 through the feed pipe 11. A feed cover plate 12 is movably provided in the top of the feed pipe 11, and the feed cover plate 12 can close the feed pipe 11.

[0027] Reference Figure 1-2 The driving mechanism includes a motor 3 fixed on the outer wall of the top end of the body 1, a rotating rod 31 fixed on the output end of the motor 3 and located inside the screening drum 2, and a plurality of connecting frames 32 are fixed between the outer wall of the rotating rod 31 and the inner wall of the screening drum 2. The connecting frames 32 can connect the screening drum 2 and the rotating rod 31. After the motor 3 is running, it will drive the rotating rod 31 to rotate, thereby driving the screening drum 2 to rotate. After the screening drum 2 rotates, it can sort construction waste of different particle sizes through screen drums with different apertures. The motor 3 is an existing low-speed motor and will not be described in detail here.

[0028] Reference Figure 2-3 A spiral blade 21 for slowing down and guiding the moving speed of construction waste is fixedly arranged on the inner wall of the screening drum 2. Since the spiral blade 21 protrudes from the inner wall of the screening drum 2, when the screening drum 2 rotates, the spiral blade 21 can partially block the construction waste entering from the top of the screening drum 2 to slow down the moving speed of the construction waste, and guide, spread out and disperse the construction waste entering from the top of the screening drum 2, so that the construction waste can fully contact the screening drum 2, so as to improve the sorting effect of multiple composite construction wastes, and when the construction waste between the spiral blades 21 rotates to the top of the screening drum 2, it will fall and disperse due to gravity.

[0029] Reference Figure 2 A plurality of spacer rings 15 are fixedly provided in the machine body 1 for sequentially separating a plurality of screen cylinders in the screening cylinder 2. The spacer rings 15 can separate the construction wastes of different particle sizes to be screened. A bearing 16 is fixedly provided in the spacer ring 15. The screening cylinder 2 is rotatably connected in the bearing 16. The bearing 16 reduces the friction and resistance when the screening cylinder 2 rotates. The bearing 16 is an existing closed bearing.

[0030] Reference Figure 2 A plurality of discharge hoppers 13 for discharging construction waste of different particle sizes are fixedly provided at the bottom of the machine body 1. A discharge cover plate 14 is movably provided at the bottom of the discharge hopper 13. The construction waste of different particle sizes after screening and separation will enter the corresponding discharge hopper 13 in turn and be discharged through the discharge hopper 13. The discharge cover plate 14 can close the discharge hopper 13.

[0031] Reference Figure 1-2A blocking mechanism is provided at the bottom of the body 1, and the blocking mechanism includes a baffle 4 rotatably arranged in the opening of the body 1 for blocking dust stirred up when the screening drum 2 rotates, and an electric push rod 41 rotatably arranged between the bottom end of the body 1 and the outer wall of the baffle 4. A fixing plate 42 is fixedly provided at the bottom of the body 1, and the electric push rod 41 is rotatably connected between the bottom of the fixing plate 42 and the outer wall of the baffle 4. The fixing plate 42 can connect the electric push rod 41 and the baffle 4. After the electric push rod 41 is extended and retracted, it will drive the baffle 4 to rotate to seal and open the opening at the bottom of the body 1, so as to realize the rapid opening and closing of the opening at the bottom of the body 1.

[0032] When the baffle 4 closes the opening at the bottom of the body 1, it can cooperate with the shielding of the body 1 to block the dust stirred up by the screening drum 2 during sorting, so that the dust will not drift into the outside air. After sorting, the bricks and stones with larger particle sizes in the construction waste will remain inside the bottom of the screening drum 2. At this time, when the opening of the body 1 is opened, the bricks and stones will be discharged from the device through the opening due to gravity.

[0033] The implementation principle of a sorting device for preparing recycled composite admixtures using construction waste in the embodiment of the utility model is as follows:

[0034] When in use, people can feed a variety of composite construction wastes into the top of the screening drum 2 through the feed pipe 11, and then use the feed cover plate 12 to close the feed pipe 11, and then turn on the motor 3. After the motor 3 is running, it will drive the rotating rod 31, the connecting frame 32 and the screening drum 2 to rotate. After the screening drum 2 rotates, it can screen and sort construction wastes such as fine sand, gravel and bricks of different particle sizes through screen cylinders with different apertures. The spiral blades 21 can partially block the construction waste entering the top of the screening drum 2 to slow down the moving speed of the construction waste and guide the construction waste. When the construction waste between the spiral blades 21 rotates to the top of the screening drum 2, it will fall and disperse with gravity, so that the construction waste can fully contact the screening drum 2, so as to improve the sorting effect of the device on the construction waste;

[0035] At the same time, the partition ring 15 can separate the sieved construction waste of different particle sizes. The sieved and separated construction waste of different particle sizes such as fine sand and gravel will enter the corresponding discharge hopper 13 in turn. At this time, the body 1 cooperates with the baffle 4 to block the dust stirred up by the sieve drum 2 during the sieve rotation, so that the dust will not float into the outside air.

[0036] After screening, people can remove the discharge cover 14, so that construction waste such as fine sand and gravel of different particle sizes can be discharged in turn through the corresponding discharge hopper 13, and shorten the electric push rod 41 to drive the baffle 4 to rotate and detach from the opening at the bottom of the body 1, so that bricks and stones with larger particle sizes in the construction waste can be discharged from the device through the opening to complete the sorting process of construction waste. The sorted construction waste can be prepared into recycled composite admixtures by subsequent crushing for recycling.

[0037] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sorting device for preparing recycled composite admixtures using construction waste, comprising an inclined body (1), a screening drum (2) mounted on the body (1) and used for sorting construction waste of different particle sizes, and a driving mechanism mounted on the body (1) and used for driving the screening drum (2) to rotate, characterized in that: The screening drum (2) is composed of a plurality of screening drums arranged in order from small to large apertures. A spiral blade (21) for slowing down and guiding the movement of construction waste is fixedly provided on the inner wall of the screening drum (2). A blocking mechanism is provided at the bottom end of the machine body (1). The blocking mechanism comprises a baffle (4) rotatably arranged in an opening of the machine body (1) for blocking dust stirred up when the screening drum (2) rotates, and an electric push rod (41) rotatably arranged between the bottom end of the machine body (1) and the outer wall of the baffle (4).

2. The separation device for preparing recycled composite admixtures from construction waste according to claim 1 is characterized in that: The aperture size of the screening cylinder (2) gradually increases from the top end to the bottom end of the machine body (1), and the top end of the screening cylinder (2) is in contact with the inner wall of the machine body (1).

3. The separation device for preparing recycled composite admixtures from construction waste according to claim 1 is characterized in that: A feed pipe (11) for feeding construction waste into the screening drum (2) is fixedly provided at the top of the machine body (1), and a feed cover plate (12) is movably provided inside the top of the feed pipe (11).

4. The separation device for preparing recycled composite admixtures from construction waste according to claim 1 is characterized in that: The driving mechanism comprises a motor (3) fixedly arranged on the outer wall of the top end of the machine body (1), a rotating rod (31) fixedly arranged on the output end of the motor (3) and located inside the screening drum (2), and a plurality of connecting frames (32) fixedly arranged between the outer wall of the rotating rod (31) and the inner wall of the screening drum (2).

5. The separation device for preparing recycled composite admixtures from construction waste according to claim 1 is characterized in that: A plurality of spacer rings (15) are fixedly provided in the machine body (1) and are used to sequentially separate a plurality of screen cylinders in the screening cylinder (2).

6. The separation device for preparing recycled composite admixtures from construction waste according to claim 5, characterized in that: A bearing (16) is fixedly disposed inside the spacer ring (15), and the screening drum (2) is rotatably connected inside the bearing (16).

7. The separation device for preparing recycled composite admixtures from construction waste according to claim 1, characterized in that: A plurality of discharge hoppers (13) for respectively discharging construction waste of different particle sizes are fixedly provided at the bottom of the machine body (1), and a discharge cover plate (14) is movably provided at the bottom end of the discharge hopper (13).

8. The separation device for preparing recycled composite admixtures from construction waste according to claim 1, characterized in that: A fixing plate (42) is fixedly provided at the bottom end of the machine body (1), and the electric push rod (41) is rotatably connected between the bottom of the fixing plate (42) and the outer wall of the baffle (4).

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