Building waste residue crushing device

Abstract

The utility model discloses a building waste residue crushing device, and relates to the technical field of building waste residue treatment. The device comprises a machine shell, the machine shell comprises a crushing box and a screening box which are vertically communicated, a feeding port is formed in the top of the crushing box, and a first discharging port and a second discharging port are formed in the bottom and the side face of the screening box correspondingly; the crushing mechanism is arranged in the crushing box; the guide rod is coaxially sleeved with the screening net barrel, the spring telescopic rod is hinged between the screening net barrel and the guide rod, concrete is conveyed into the screening net barrel after being crushed, the guide rod drives the screening net barrel to rotate, and vibration can be generated when the screening net barrel rotates under the influence of gravity, rotation stress and elasticity of the spring telescopic rod; even if part of the broken stones are clamped in the meshes of the screening net cylinder, after the screening net cylinder rotates, the broken stones can be located at the bottom of the inner wall of the screening net cylinder from the top of the inner wall of the screening net cylinder, and the broken stones are separated from the meshes of the screening net cylinder along with vibration force generated by the screening net cylinder, so that the broken stones cannot be blocked.

Description

Technical Field

[0001] This application relates to the technical field of construction waste treatment, and specifically relates to a construction waste crushing device. Background Art

[0002] Construction waste refers to the construction waste generated during construction projects such as demolition, construction, decoration, and repair due to human or natural reasons, including muck, waste concrete, waste bricks and stones, and other waste materials. These construction wastes are substances generated during the construction process and need to be processed accordingly in order to achieve the ideal construction project;

[0003] When recycling construction waste, such as concrete, it needs to be crushed and the stones and sand in the crushed concrete need to be separated. After the existing crushing device crushes it, only a single filter plate is used for filtering and screening. Since the crushed blocks are irregular themselves after the concrete is crushed, the crushed blocks are likely to get stuck in the mesh holes of the filter plate, resulting in blockage of the filter plate and thus reducing the practicability. Therefore, this application proposes a construction waste crushing device. Utility Model Content

[0004] The purpose of this application is to solve the problem that after the existing crushing device crushes construction waste, only a single filter plate is used for filtering and screening, and the crushed blocks are easily blocked, affecting the screening efficiency. This application provides a construction waste crushing device.

[0005] This application specifically adopts the following technical solutions to achieve the above purpose:

[0006] A construction waste crushing device, comprising:

[0007] A housing, including a crushing box and a screening box that communicate up and down. The top of the crushing box has a feed inlet, and the bottom and side of the screening box are respectively provided with a first discharge port and a second discharge port;

[0008] A crushing mechanism, arranged in the crushing box, which is used for crushing concrete;

[0009] A screening mechanism, including a guide rod that rotatably penetrates one inner wall of the screening box. The guide rod is inclined and the lower end of its inclination is movably penetrated through the second discharge port. The higher end of the inclination of the guide rod is connected to a first motor arranged on the screening box. A screening mesh cylinder is coaxially sleeved on the guide rod, and a plurality of annularly distributed spring telescopic rods are hinged between the screening mesh cylinder and the guide rod;

[0010] A transition piece, arranged in the crushing box, which is used for transporting the crushed material to the higher end of the inclination of the screening mesh cylinder.

[0011] Further, the transition member includes a collection shell with an open top. The open end of the collection shell communicates with the crushing box, and a conveying pipe with its end movably inserted into the screening mesh cylinder is connected to the bottom end of the collection shell.

[0012] Further, a spiral plate is provided on the inner wall of the screening mesh cylinder.

[0013] Further, a number of conical strips are arranged in an array on the outer surface of the screening mesh cylinder. On the opposite inner wall sides of the screening box, mounting frames are connected. Rollers are rotatably arranged on the mounting frames, and the rollers are in rolling contact with the outer surface of the screening mesh cylinder.

[0014] Further, the crushing mechanism includes two crushing rollers. The two crushing rollers horizontally rotate through the opposite inner wall sides of the crushing box. The end of one of the crushing rollers is connected to a second motor provided on the crushing box. Gears are fixedly provided on both of the two crushing rollers and the teeth of the two gears are meshed.

[0015] Further, the crushing mechanism further includes two arc-shaped liners. The two arc-shaped liners are respectively arranged on the opposite inner wall sides of the crushing box. The two arc-shaped liners enclose a circular cavity structure with an upper and lower channel. A rotating rod coaxially inserted into the circular cavity rotates through the opposite inner wall sides of the crushing box. A number of striking plates distributed in a ring are provided on the outer surface of the rotating rod. The rotating rod and one of the crushing rollers are connected by a pulley assembly.

[0016] Further, a number of convex rib strips are arranged in an array on the inner wall of the arc-shaped liner.

[0017] Further, a number of mounting rods distributed in a ring are provided on the rotating rod, and a number of striking plates are respectively inclinedly arranged on the number of mounting rods.

[0018] The beneficial effects of the present application are as follows:

[0019] In the present application, a screening mesh cylinder is coaxially sleeved on the guide rod. A spring telescopic rod is hinged between the screening mesh cylinder and the guide rod. After the concrete is crushed, it is conveyed into the screening mesh cylinder through the transition member. The guide rod drives the screening mesh cylinder to rotate. Affected by gravity, rotational stress, and the elasticity of the spring telescopic rod, the screening mesh cylinder will also vibrate when rotating, making it difficult for crushed stones to block the mesh holes of the screening mesh cylinder. Even if some crushed stones are stuck in the mesh holes of the screening mesh cylinder, when the screening mesh cylinder rotates, the crushed stones will change from the top of the inner wall of the screening mesh cylinder to the bottom of the inner wall of the screening mesh cylinder, and will fall off the mesh holes of the screening mesh cylinder with the vibration force generated by the screening mesh cylinder, so that it will not be blocked, thereby improving the screening effect. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural diagram of the present application;

[0021] Figure 2 It is a sectional view of the three-dimensional structure of the present application;

[0022] Figure 3 It is another three-dimensional structural cross-sectional view of the present application;

[0023] Figure 4 is another three-dimensional structural cross-sectional view of the present application;

[0024] Figure 5 This application Figure 2 Enlarged view of point A in the middle;

[0025] Figure numerals: 1, casing; 2, crushing mechanism; 3, screening mechanism; 4, transition piece; 5, spiral plate; 6, conical bar; 7, mounting frame; 8, roller; 9, convex rib bar; 10, mounting rod; 101, crushing box; 102, screening box; 201, crushing roller; 202, second motor; 203, gear; 204, arc lining plate; 205, rotating rod; 206, knocking plate; 207, pulley assembly; 301, guide rod; 302, first motor; 303, screening mesh cylinder; 304, spring telescopic rod; 401, collecting shell; 402, conveying pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] like Figures 1 - 5 As shown, a construction waste slag crushing device proposed in one embodiment of the present application includes:

[0028] The casing 1 comprises a crushing box 101 and a screening box 102 which are connected to each other from top to bottom. The top of the crushing box 101 is provided with a feed port. The bottom and side of the screening box 102 are respectively provided with a first discharge port and a second discharge port. The feed port is used to add concrete blocks. The first discharge port and the second discharge port are respectively used to discharge crushed stones and sand produced after crushing. Preferably, support columns are provided at the four corners of the bottom of the screening box 102 so that the screening box 102 can be erected at a certain height to facilitate the discharge of crushed stones and sand.

[0029] The crushing mechanism 2 is arranged in the crushing box 101 and is used to crush the concrete. When the concrete blocks are added into the crushing box 101 from the feed port, the crushing mechanism 2 crushes the concrete blocks.

[0030] The screening mechanism 3 includes a guide rod 301 that rotatably penetrates through one inner wall of the screening box 102. The guide rod 301 is inclined, and the end with a lower inclination thereof movably penetrates through the second discharge port. Preferably, a support rod is provided at one end of the screening box 102 where the second discharge port is located, and the end of the guide rod 301 rotatably penetrates through the support rod, so that both ends of the guide rod 301 have rotational support points. The end with a higher inclination of the guide rod 301 is connected to a first motor 302 provided on the screening box 102. A screening mesh cylinder 303 is coaxially sleeved on the guide rod 301. A plurality of annularly distributed spring telescopic rods 304 are hinged between the screening mesh cylinder 303 and the guide rod 301. The spring telescopic rod 304 includes an outer rod and an inner rod. The inner rod is movably inserted into the outer rod, and a spring is connected between the inner rod and the outer rod. The end of the inner rod is hinged to the screening mesh cylinder 303, and the end of the outer rod is hinged to the guide rod 301; the transition member 4 is provided in the crushing box 101 and is used to convey the crushed material to the inside of the end with a higher inclination of the screening mesh cylinder 303. When the concrete block is crushed by the crushing mechanism 2, the crushed gravel and sand are conveyed into the screening mesh cylinder 303 through the transition member 4. The gravel and sand will slide along the end with a lower inclination in the screening mesh cylinder 303. At this time, the first motor 302 drives the guide rod 301 to rotate, thereby driving the screening mesh cylinder 303 to rotate. When the gravel and sand slide, the sand slides downward through the mesh holes of the screening mesh cylinder 303, while the gravel is intercepted in the screening mesh cylinder 303 and slides out from the end opening thereof, thus realizing the screening function. Since the screening mesh cylinder 303 is hinged to the guide rod 301 through the spring telescopic rod 304, during the sliding process of the gravel and sand, they are mainly concentrated on the inner bottom wall of the screening mesh cylinder 303. Under the action of feeding, discharging, and screening, the gravity is constantly changing. Affected by gravity, rotational stress, and the elasticity of the spring telescopic rod 304, when the screening mesh cylinder 303 rotates with the guide rod 301, it will also generate vibrations, making it difficult for the gravel to block the mesh holes of the screening mesh cylinder 303. At the same time, even if some gravel is stuck in the mesh holes of the screening mesh cylinder 303, when the screening mesh cylinder 303 rotates, the gravel will change from the top of the inner wall of the screening mesh cylinder 303 to the bottom of the inner wall of the screening mesh cylinder 303 and will break away from the mesh holes of the screening mesh cylinder 303 with the vibration force generated by the screening mesh cylinder 303, so that it will not be blocked, thereby improving the screening effect.

[0031] Such as Figure 2As shown, in some embodiments, the transition member 4 includes a collection shell 401 with an open top. The open end of the collection shell 401 communicates with the crushing box 101. A delivery pipe 402 with its end movably inserted into the screening mesh cylinder 303 is connected to the bottom end of the collection shell 401. The crushed gravel and sand will fall into the collection shell 401 and then slide obliquely through the delivery pipe 402 into the screening mesh cylinder 303. Preferably, there is a certain distance between the delivery pipe 402 and the inner wall of the screening mesh cylinder 303, so that when the screening mesh cylinder 303 rotates or vibrates, it will not collide with the delivery pipe 402.

[0032] As Figure 2 and Figure 4 As shown, in some embodiments, a spiral plate 5 is provided on the inner wall of the screening mesh cylinder 303. By providing the spiral plate 5, the sliding speed of the gravel and sand along the inside of the screening mesh cylinder 303 can be delayed, so that the sand grains have sufficient time for screening to ensure the screening quality.

[0033] As Figure 2 and Figure 4 As shown, in some embodiments, a number of conical strips 6 are arrayed on the outer surface of the screening mesh cylinder 303. Mounting frames 7 are connected to the opposite sides of the inner wall of the screening box 102. Rollers 8 are rotatably provided on the mounting frames 7. The rollers 8 are in rolling contact with the outer surface of the screening mesh cylinder 303. In the initial state, the rollers 8 are in rolling contact with the outer surface of the screening mesh cylinder 303. As the screening mesh cylinder 303 rotates, the rollers 8 will contact the conical surface of the conical strips 6. Under the resistance of the conical surface, the screening mesh cylinder 303 is forced to vibrate. By providing the rolling contact between the rollers 8 and the inclined surface of the conical strips 6, a force that forces the screening mesh cylinder 303 to vibrate is applied, combined with the vibration of the screening mesh cylinder 303 itself due to rotation and gravity, so that the vibration effect of the screening mesh cylinder 303 is better, further improving the screening effect on gravel and sand grains.

[0034] As Figure 1 、 Figure 2 and Figure 3 As shown, in some embodiments, the crushing mechanism 2 includes two crushing rollers 201. The two crushing rollers 201 horizontally rotate through the opposite sides of the inner wall of the crushing box 101. The end of one of the crushing rollers 201 is connected to a second motor 202 provided on the crushing box 101. Gears 203 are fixedly provided on both of the crushing rollers 201 and the teeth of the two gears 203 are meshed. Preferably, guide plates are provided on the opposite sides of the inner wall of the crushing box 101 and above the crushing rollers 201. After the concrete blocks are added from the feed inlet, under the guidance of the guide plates, the concrete blocks will slide between the two crushing rollers 201. The second motor 202 does work and drives the crushing rollers 201 to rotate. Under the meshing of the teeth of the two gears 203, the two crushing rollers 201 rotate synchronously in opposite directions, and the crushing teeth on the two crushing rollers 201 crush the concrete blocks.

[0035] As Figure 1 , Figure 2 and Figure 3 shown, in some embodiments, the crushing mechanism 2 further includes two arc-shaped liners 204. The two arc-shaped liners 204 are respectively arranged on the opposite sides of the inner wall of the crushing box 101. The two arc-shaped liners 204 enclose a circular cavity structure with an upper and lower channel. A rotating rod 205 coaxially inserted into the circular cavity penetrates through the opposite sides of the inner wall of the crushing box 101. A plurality of knocking plates 206 distributed in a ring are arranged on the outer surface of the rotating rod 205. A pulley assembly 207 is connected between the rotating rod 205 and one of the crushing rollers 201. When the concrete block is crushed by the two crushing rollers 201, some gravel blocks still have sand grains wrapped on their outer surfaces. The gravel and sand grains will fall and pass through the circular cavity structure enclosed by the two arc-shaped liners 204. At this time, under the linkage of the pulley assembly 207, the rotating rod 205 is driven to rotate synchronously, and then a plurality of knocking plates 206 are driven to rotate around the rotating rod 205, so that the knocking plates 206 rotate to knock the gravel and sand grains. Under the knocking of the knocking plates 206, the gravel and sand grains will rebound and impact the arc-shaped liners 204. Through the knocking of the knocking plates 206 and the rebound impact of the arc-shaped liners 204, not only can the preliminarily crushed concrete block be secondary crushed to ensure the crushing effect, and the crushed blocks and sand grains after secondary crushing then fall downward through the channel, but also the sand grains attached to the gravel can be knocked off to improve the separation effect of the gravel and sand grains.

[0036] As Figure 3 shown, in some embodiments, a plurality of convex rib strips 9 are arrayed on the inner wall of the arc-shaped liner 204. By constructing the convex rib strips 9, the contact friction between the arc-shaped liner 204 and the concrete debris is increased, so that the crushing effect on the concrete block is better.

[0037] As Figure 2 and Figure 3 shown, in some embodiments, a plurality of mounting rods 10 distributed in a ring are arranged on the rotating rod 205. A plurality of knocking plates 206 are respectively inclinedly arranged on the plurality of mounting rods 10. Preferably, there are multiple knocking plates 206 on the same mounting rod 10, and the knocking plates 206 on adjacent two mounting rods 10 are staggered. By arranging the knocking plates 206 inclinedly, when the rotating rod 205 rotates, it will not excessively carry the debris to rotate, but apply a knocking force away from the center of the rotating rod 205, so that the concrete debris is more likely to be impacted by the knocking force and impact the arc-shaped liner 204, thereby improving the crushing quality.

[0038] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction waste slag crushing device, characterized in that: include: The casing (1) comprises a crushing box (101) and a screening box (102) which are connected to each other from top to bottom, wherein the top of the crushing box (101) is provided with a feed inlet, and the bottom and side of the screening box (102) are respectively provided with a first discharge outlet and a second discharge outlet; A crushing mechanism (2), arranged in the crushing box (101), is used to crush concrete; The screening mechanism (3) comprises a guide rod (301) which rotates and penetrates the inner wall of one side of the screening box (102); the guide rod (301) is arranged in an inclined manner and the end with a lower inclination thereof movably penetrates the second discharge port; the end with a higher inclination of the guide rod (301) is connected to a first motor (302) arranged on the screening box (102); a screening net cylinder (303) is coaxially sleeved on the guide rod (301); and a plurality of spring telescopic rods (304) distributed in an annular shape are hinged between the screening net cylinder (303) and the guide rod (301); The transition piece (4) is arranged in the crushing box (101) and is used to transfer the crushed materials to the end of the screening mesh cylinder (303) with a high inclination.

2. The construction waste crushing device according to claim 1, characterized in that: The transition piece (4) comprises a collecting shell (401) with an opening at the top, the open end of the collecting shell (401) is connected to the crushing box (101), and the bottom end of the collecting shell (401) is connected to a conveying pipe (402) whose end is movably inserted into the screening net cylinder (303).

3. The construction waste crushing device according to claim 1, characterized in that: The inner wall of the screening mesh cylinder (303) is provided with a spiral plate (5).

4. The construction waste slag crushing device according to claim 1, characterized in that: The outer surface of the screening mesh cylinder (303) is provided with a plurality of conical bars (6) in an array, and a mounting frame (7) is connected to the opposite side of the inner wall of the screening box (102), and a roller (8) is rotatably provided on the mounting frame (7), and the roller (8) rolls and overlaps with the outer surface of the screening mesh cylinder (303).

5. The construction waste slag crushing device according to claim 1, characterized in that: The crushing mechanism (2) comprises two crushing rollers (201), the two crushing rollers (201) rotate horizontally and penetrate opposite sides of the inner wall of the crushing box (101), the end of one of the crushing rollers (201) is connected to a second motor (202) arranged on the crushing box (101), and the two crushing rollers (201) are fixedly provided with gears (203), and the teeth of the two gears (203) are meshed.

6. The construction waste slag crushing device according to claim 5, characterized in that: The crushing mechanism (2) further comprises two arc-shaped lining plates (204), which are respectively arranged on opposite sides of the inner wall of the crushing box (101), and the two arc-shaped lining plates (204) enclose a circular cavity structure having upper and lower channels, and a rotating rod (205) coaxially inserted in the circular cavity rotates and penetrates through the opposite sides of the inner wall of the crushing box (101), and a plurality of ring-shaped knocking plates (206) are arranged on the outer surface of the rotating rod (205), and a pulley assembly (207) is connected to the rotating rod (205) and one of the crushing rollers (201).

7. The construction waste slag crushing device according to claim 6, characterized in that: The inner wall array of the arc-shaped lining plate (204) is configured with a plurality of convex ribs (9).

8. The construction waste slag crushing device according to claim 6, characterized in that: The rotating rod (205) is provided with a plurality of mounting rods (10) distributed in a ring shape, and a plurality of knocking plates (206) are respectively arranged obliquely on the plurality of mounting rods (10).

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