Multi-stage particle size screening device for construction waste

Abstract

The utility model provides a building waste multistage particle size screening device, and relates to the field of building waste treatment, the building waste multistage particle size screening device comprises a rack and a screening cylinder rotatably arranged on the rack, one end of the rack is provided with an outer shielding cover through a connecting structure, the outer shielding cover covers the upper portion of the outlet end of the screening cylinder, and the outer shielding cover is slidably connected with an inner shielding cover; the multiple inner shielding covers are arranged, the adjacent inner shielding covers are sequentially connected in a sliding mode, and the inner shielding covers are each of a C-shaped structure with an opening in the bottom. According to the garbage screening device, garbage of different sizes can be screened out through the screen mesh sections of different sizes; the multiple inner shielding covers are unfolded and cover the screening barrel, so that most dust generated in the screening process is shielded, and environmental pollution and influence on the body health of workers are avoided as much as possible; a worker can pull the inner shielding cover to stack the inner shielding cover and collect the inner shielding cover into the outer shielding cover, so that the screening barrel is exposed outside, at the moment, garbage stuck on the screening barrel can be removed, the screening barrel can be flushed and cleaned, and maintenance is facilitated.

Description

Technical Field

[0001] The present application relates to the field of construction waste treatment, and in particular to a construction waste multi-stage particle size screening device. Background Art

[0002] Whether in the process of construction or demolition, a large amount of construction waste will be generated. The components of construction waste include concrete, gravel, wood and glass, etc. Some materials can be reused after recycling. For the treatment of construction waste, the first step is to crush it, and then send the crushed waste to the screening device for screening.

[0003] The existing invention patent application with publication number CN115245898A discloses a multi-level particle size screening device and sorting method for construction waste, including a base frame, a cushion block, a left support frame, a right support frame, a processing mechanism, a discharging frame, a power cord and a control switch. The left side of the hopper is inserted into the top side of the cylinder ring and fixed to it. A small-diameter screening cylinder is fixed on the left side of the cylinder ring. A large-diameter screening cylinder and a small-diameter screening cylinder are integrally formed on the left and right sides of the medium-diameter screening cylinder. The left side of the large-diameter screening cylinder is inserted into the knocking structure and is rotatably connected to it. With a driving motor as the power source, the second gear and the third gear respectively drive the auger and the stirring rod to rotate, and the auger drives the cast garbage to evenly fall into the small-diameter screening cylinder, the medium-diameter screening cylinder and the large-diameter screening cylinder for rotation and screening.

[0004] With regard to the above-mentioned related technologies, the inventors believe that during the process of screening the garbage by the above-mentioned screening device, since the screening drum used for screening is rotating, the construction waste rolls in the screening drum, which will generate a large amount of dust, causing environmental pollution and affecting the health of the workers. Utility Model Content

[0005] The present application provides a construction waste multi-stage particle size screening device, which can shield the dust generated during the screening process to minimize the pollution of the environment and the impact on the health of workers.

[0006] The present application provides a construction waste multi-level particle size screening device, which adopts the following technical solution:

[0007] A multi-level particle size screening device for construction waste comprises a frame and a screening drum rotatably arranged on the frame, an outer shielding cover is installed at one end of the frame through a connecting structure, the outer shielding cover covers the upper part of the outlet end of the screening drum, the outer shielding cover is slidably connected to an inner shielding cover, the inner shielding cover is provided with a plurality of adjacent inner shielding covers which are slidably connected in sequence, and the inner shielding covers are all C-shaped structures with bottom openings.

[0008] Through the above technical solution, personnel can pull the inner shielding cover to drive the inner shielding cover to move, unfold multiple inner shielding covers and cover the outside of the screening cylinder, so as to block most of the dust generated during the screening process and avoid polluting the environment and affecting the health of the staff as much as possible.

[0009] Preferably, a support rod is fixed on the frame, the support rod is located above the screening cylinder, and the support rod supports the top of the inner wall of the inner shielding cover.

[0010] Through the above technical solution, the support rod supports the top of the inner wall of the inner shielding cover, thereby preventing the inner shielding cover from affecting the rotation of the screening drum.

[0011] Preferably, the connecting structure is a support rod, and two support rods are provided and penetrate the outer shielding cover.

[0012] Through the above technical solution, both ends of the support rod are fixed to the frame, and the support rod supports the outer shielding cover at the height position.

[0013] Preferably, the size of the inner shielding cover is smaller than that of the outer shielding cover, the inner shielding cover can slide to the inner side of the outer shielding cover, the size of the inner shielding cover also decreases successively in the direction away from the outer shielding cover, and multiple inner shielding covers can be stacked by sliding.

[0014] Through the above technical solution, personnel can pull the inner shielding cover to stack it and put it into the outer shielding cover, so that the screening cylinder is exposed to the outside. At this time, the garbage stuck on the screening cylinder can be removed and the screening cylinder can be flushed and cleaned for easy maintenance.

[0015] Preferably, a sliding rod is fixed to the inner walls of the outer shielding cover and the inner shielding cover, the inner shielding cover is provided with a sliding groove matching the size of the sliding rod, and the outer shielding cover and the plurality of inner shielding covers are slidably connected to the sliding groove via the sliding rod.

[0016] Through the above technical solution, the outer shielding cover and the plurality of inner shielding covers are slidably connected to the slide grooves through the slide rods to avoid separation from each other.

[0017] Preferably, a limiting block is fixed at the bottom of the slide rod, and the limiting block is located below the slide slot and cannot pass through the slide slot.

[0018] Through the above technical solution, the limit block is used to prevent the slide rod from being separated from the slide groove.

[0019] Preferably, a hook is fixed to the end of the inner shielding cover away from the outer shielding cover, and a hanging rod for the hook to be hooked is provided on the frame.

[0020] Through the above technical solution, after the hook is hooked on the hanging rod, the inner shielding cover is restricted to prevent it from sliding spontaneously.

[0021] Preferably, the screening cylinder comprises a plurality of screen segments with different screen hole sizes, and the screen hole sizes of the screen segments increase sequentially in a direction away from the feed inlet.

[0022] Through the above technical solution, garbage of different sizes can be screened out by using screen segments of different sizes, and a container can be placed under each screen segment to receive the garbage screened out by the screen segment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By unfolding multiple inner shielding covers and covering the outside of the screening cylinder, most of the dust generated during the screening process can be shielded to avoid polluting the environment and affecting the health of the workers;

[0025] 2. Personnel can pull the inner shielding cover to stack it and put it into the outer shielding cover, so that the screening cylinder is exposed to the outside. At this time, the garbage stuck on the screening cylinder can be removed and the screening cylinder can be flushed and cleaned for easy maintenance;

[0026] 3. Through the screen segments of different sizes, garbage of different sizes can be screened out. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an overall diagram of a multi-level particle size screening device for construction waste in an embodiment;

[0028] Figure 2 This is a structural diagram of the embodiment after the outer shielding cover and the inner shielding cover are hidden;

[0029] Figure 3 is a structural diagram of an outer shielding cover and an inner shielding cover of an embodiment;

[0030] Figure 4 yes Figure 3 Enlarged view of point A.

[0031] Explanation of the reference numerals: 1. frame; 2. screening cylinder; 3. outer shielding cover; 4. inner shielding cover; 11. feed hopper; 12. support rod; 41. slide rod; 42. slide chute; 43. limit block; 44. hook; 13. hanging rod. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] Reference Figure 1 and Figure 2The present embodiment discloses a multi-level particle size screening device for construction waste, including a frame 1, a screening drum 2 rotatably arranged on the frame 1, an outer shielding cover 3 is installed at one end of the frame 1 through a connecting structure, the outer shielding cover 3 is slidably connected to an inner shielding cover 4, and the inner shielding cover 4 is provided with multiple and adjacent inner shielding covers 4 that are slidably connected in sequence.

[0034] The screening drum 2 is driven to rotate by a motor fixed to the frame 1. The axis of the screening drum 2 is not horizontal. The end of the screening drum 2 close to the motor is higher, and this end is the feed port. The frame 1 is installed with a feed hopper 11 at the feed port, and the construction waste to be screened enters the screening drum 2 through the feed hopper 11. The end of the screening drum 2 away from the motor is lower, which is the outlet end, and is used to discharge construction waste that is too large to pass through the screening drum 2. The screening drum 2 includes multiple screen segments with different apertures, and the size of the screen holes of the screen segments increases successively in the direction away from the feed port. There are three screen segments in this embodiment, and a container can be placed on the ground below each screen segment to receive the garbage screened out by the screen segment.

[0035] The connection structure is a support rod 12. Two support rods 12 are provided and penetrate the outer shielding cover 3. The support rod 12 supports the outer shielding cover 3 at this height position. The support rod 12 is arranged parallel to the axis of the screening drum 2. Both ends of the support rod 12 are fixed to the frame 1. The support rod 12 is located above the screening drum 2. The support rod 12 supports the top of the inner wall of the inner shielding cover 4 to prevent the inner shielding cover 4 from affecting the rotation of the screening drum 2.

[0036] Reference Figure 1 and Figure 3 , the outer shielding cover 3 covers the upper part of the outlet end of the screening cylinder 2, and a gap is left at the bottom of the outer shielding cover 3 for garbage to pass through. The inner shielding cover 4 is a C-shaped structure with an opening at the bottom, and the bottom opening of the inner shielding cover 4 is used for the screened construction waste to pass through. It should be noted that the function of the outer shielding cover 3 and the inner shielding cover 4 is to block most of the dust in the screening process, and does not guarantee that there will be no dust leakage; due to the gap between the outer shielding cover 3 and the inner shielding cover 4, and the openings at the bottom of the outer shielding cover 3 and the inner shielding cover 4 for garbage to pass through, a small amount of dust will still float to the outside, but the amount of dust floating out is small and can be ignored. Therefore, the technical solution of the present application can achieve the corresponding effect and has practical value.

[0037] The size of the inner shielding cover 4 is smaller than that of the outer shielding cover 3. The inner shielding cover 4 can slide to the inner side of the outer shielding cover 3. The size of the inner shielding cover 4 also decreases in the direction away from the outer shielding cover 3. Multiple inner shielding covers 4 can be stacked by sliding. The significance of the outer shielding cover 3 and the inner shielding cover 4 being stacked by sliding is that the screening drum 2 can be exposed to the outside after the machine is stopped, so that it is convenient to remove the garbage stuck in the sieve holes of the screening drum 2, and it is also convenient to use water to fully clean the screening drum 2.

[0038] Reference Figure 3 and Figure 4 The sliding connection structure between the outer shielding cover 3 and the inner shielding cover 4 is as follows: a sliding rod 41 is fixed to the inner wall of the outer shielding cover 3 and the inner shielding cover 4, and a sliding groove 42 matching the size of the sliding rod 41 is provided in the inner shielding cover 4. The outer shielding cover 3 and the plurality of inner shielding covers 4 are slidingly connected with the sliding groove 42 through the sliding rod 41. A limiting block 43 is fixed to the bottom of the sliding rod 41. The limiting block 43 is located below the sliding groove 42 and cannot pass through the sliding groove 42. The limiting block 43 is used to prevent the sliding rod 41 from being separated from the sliding groove 42.

[0039] Reference Figure 1 A hook 44 is fixed to the end of the inner shielding cover 4 away from the outer shielding cover 3, and a hanging rod 13 for hooking the hook 44 is provided on the frame 1. The hanging rod 13 is located near the feed hopper 11. After the hook 44 is hooked on the hanging rod 13, the inner shielding cover 4 is restricted to prevent it from sliding spontaneously.

[0040] The implementation principle of the multi-level particle size screening device for construction waste in this embodiment is as follows: after the construction waste to be screened is put into the feed hopper 11, the construction waste enters the screening drum 2 from the feed port. The screening drum 2 is driven by a motor to rotate. Since the screening drum 2 is inclined, the construction waste rolls in the screening drum 2 and moves toward the outlet end of the screening drum 2. The screening drum 2 screens construction waste of different sizes through different screen segments. By placing a container on the ground below the screening drum 2 to receive the large-sized waste, the waste that cannot be screened leaves the screening drum 2 from the outlet end of the screening drum 2.

[0041] Personnel can pull the inner shielding cover 4 to drive the inner shielding cover 4 to move. After hooking the hook 44 on the hanging rod 13, multiple inner shielding covers 4 can be unfolded and covered outside the screening cylinder 2, thereby shielding most of the dust generated during the screening process, and avoiding pollution of the environment and affecting the health of the staff as much as possible.

[0042] After the screening is completed, the equipment is shut down. At this time, the personnel can pull the inner shielding cover 4 to stack it and put it into the outer shielding cover 3, so that the screening cylinder 2 is exposed to the outside. At this time, the garbage stuck on the screening cylinder 2 can be removed and the screening cylinder 2 can be flushed and cleaned for easy maintenance.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for screening construction waste in multiple particle sizes, comprising a frame (1) and a screening drum (2) rotatably arranged on the frame (1), wherein: An outer shielding cover (3) is installed at one end of the frame (1) via a connecting structure, the outer shielding cover (3) covers the upper part of the outlet end of the screening drum (2), the outer shielding cover (3) is slidably connected to an inner shielding cover (4), the inner shielding cover (4) is provided with a plurality of adjacent inner shielding covers (4) slidably connected in sequence, and the inner shielding covers (4) are all C-shaped structures with an opening at the bottom.

2. A construction waste multi-level particle size screening device according to claim 1, characterized in that: A support rod (12) is fixed on the frame (1), the support rod (12) is located above the screening drum (2), and the support rod (12) supports the top of the inner wall of the inner shielding cover (4).

3. A construction waste multi-stage particle size screening device according to claim 2, characterized in that: The connection structure is a support rod (12), and two support rods (12) are provided and penetrate the outer shielding cover (3).

4. The multi-level particle size screening device for construction waste according to claim 1 is characterized in that: The size of the inner shielding cover (4) is smaller than that of the outer shielding cover (3); the inner shielding cover (4) can slide to the inner side of the outer shielding cover (3); the size of the inner shielding cover (4) also decreases in a direction away from the outer shielding cover (3); and a plurality of the inner shielding covers (4) can be stacked by sliding.

5. The multi-level particle size screening device for construction waste according to claim 4 is characterized in that: A sliding rod (41) is fixed to the inner walls of the outer shielding cover (3) and the inner shielding cover (4); the inner shielding cover (4) is provided with a sliding groove (42) matching the size of the sliding rod (41); the outer shielding cover (3) and the plurality of inner shielding covers (4) are slidably connected to the sliding groove (42) via the sliding rod (41).

6. A construction waste multi-level particle size screening device according to claim 5, characterized in that: A limit block (43) is fixed at the bottom of the slide rod (41), and the limit block (43) is located below the slide groove (42) and cannot pass through the slide groove (42).

7. The multi-level particle size screening device for construction waste according to claim 1 is characterized in that: A hook (44) is fixed to the end of the inner shielding cover (4) away from the outer shielding cover (3), and a hanging rod (13) for the hook (44) to hook is provided on the frame (1).

8. The multi-level particle size screening device for construction waste according to claim 1 is characterized in that: The screening cylinder (2) comprises a plurality of screen segments with different screen hole sizes, and the screen hole sizes of the screen segments increase sequentially in a direction away from the feed inlet.

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