Classified screening device for building recycled aggregate

Abstract

The utility model discloses a building recycled aggregate classification screening device which comprises an equipment body and an aggregate inlet, the aggregate inlet is connected to the top of the equipment body and communicated with the internal space of the equipment body, at least two sieve plate bodies are arranged in the equipment body and arranged in an inclined mode, and the sieve plate bodies are arranged in the equipment body. Each sieve plate main body comprises a protection plate and a sieve net, the sieve net is connected into the protection plate, each sieve plate main body is provided with a horizontal shaking assembly, each horizontal shaking assembly comprises an extrusion rod and a rotating disc which are connected to the bottom of the protection plate, and each rotating disc is provided with an arc-shaped surface; the extrusion rod and the rotating disc are both located at the higher end of the sieve plate body, the driving assembly is suitable for driving the rotating disc to rotate, then the arc-shaped face is driven to rotate so as to extrude the extrusion rod, and bone meal is evenly dispersed on the sieve net through left-right reciprocating shaking of the sieve plate; and the screening efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste recycling, in particular to a construction recycled aggregate grading and screening device. Background Art

[0002] At present, the use of recycled aggregates in the construction industry is becoming more and more widespread, thanks to the recycling of waste concrete. However, in the preparation process of recycled aggregates, grading and screening is a crucial link. Traditional grading and screening devices mostly rely on vibration screening technology. Vibrating screen is a common screening equipment. Its working principle is to use vibration force and gravity to screen the material. Although this screening method has a high screening efficiency, it has some problems, especially when processing recycled construction aggregates.

[0003] After searching, it was found that the Chinese utility model patent with authorization announcement number CN218610366U discloses a grading and screening device for building recycled aggregates. The patent includes a support base, a grading screening component, a multi-stage collection component and a stirring and feeding component. The multi-stage screening is achieved by reciprocating up and down floating to drive the screening plate to swing, and the screened aggregates are collected separately; however, the patent can only achieve longitudinal vibration, and cannot effectively disperse the bone powder by shaking left and right, and more efficiently use the screen to screen the bone powder. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art. The bone powder is evenly dispersed on the sieve by the arrangement of the sieve plate rocking back and forth, thereby improving the efficiency and quality of screening.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a construction recycled aggregate grading and screening device, which is characterized by comprising:

[0006] Equipment body;

[0007] An aggregate inlet, the aggregate inlet being connected to the top of the equipment body and communicating with the internal space of the equipment body;

[0008] At least two sieve plate bodies are provided in the main body of the device, the sieve plate bodies are arranged obliquely, the sieve plate bodies include protective plates and screens, and the screens are connected in the protective plates;

[0009] Each of the sieve plate bodies is provided with a horizontal shaking assembly, the horizontal shaking assembly comprising an extrusion rod and a turntable connected to the bottom of the protective plate, the turntable being provided with an arcuate surface, the extrusion rod being provided in contact with the arcuate surface, the extrusion rod and the turntable being both located at the higher end of the sieve plate body;

[0010] a driving assembly, the driving assembly being adapted to drive the turntable to rotate, thereby driving the arc-shaped surface to rotate to squeeze the squeezing rod;

[0011] Reset components are provided between both sides of the protective plate and the equipment main body, and the reset components are suitable for resetting the sieve plate main body after being driven by the extrusion rod to deviate.

[0012] Furthermore, the reset assembly includes a sliding rod, a stabilizing rod and a reset spring;

[0013] The sliding rod is connected to the end of the protective plate at a higher position, and the stabilizing rod is connected to the end of the protective plate at a lower position;

[0014] Sliding grooves are provided in the device body at positions corresponding to the sliding rod and the stabilizing rod, and the sliding rod and the stabilizing rod are slidably connected in the corresponding sliding grooves respectively;

[0015] One end of the return spring is connected to the outer peripheral surface of the sliding rod, and the other end of the return spring is connected to the end surface of the sliding groove corresponding to the sliding rod.

[0016] Furthermore, the screening device further comprises a vibration assembly, wherein the vibration assembly comprises a cam and a vibration component;

[0017] The cam is adapted to be driven by the driving assembly to rotate so as to strike the vibrating component, thereby driving the vibrating component to strike the screen.

[0018] Furthermore, the vibration component includes a connecting plate, a rotating rod and an impact block;

[0019] The connecting plate is connected to the bottom of the protective plate, the rotating rod is rotatably installed in the connecting plate, and the impact block is connected to one end of the rotating rod. The rotating rod is suitable for being driven to swing on the connecting plate when the cam rotates, thereby driving the impact block to collide with the screen.

[0020] Furthermore, the driving assembly includes a motor 1 and a rotating shaft;

[0021] The motor 1 and the rotating shaft are both located in the device body, and the motor 1 is connected to the rotating shaft to be suitable for driving the rotating shaft to rotate in the device body.

[0022] Furthermore, the outer movable sleeve of the rotating shaft is provided with a placement sleeve, and one end of the placement sleeve is connected to the inner wall of the device body;

[0023] A placement plate is provided at the bottom of the motor 1, and one end of the placement plate is connected to the inner wall of the device body.

[0024] Furthermore, a collecting assembly corresponding to the sieve plate body is provided in the main body of the device;

[0025] The collecting assembly is located below the lower end of the screen plate body, and is suitable for collecting aggregate on the screen plate body and sending the aggregate out of the equipment body.

[0026] Furthermore, the collecting assembly includes a receiving plate and a discharge pipe arranged obliquely;

[0027] The inlet of the discharge pipe is connected to the lower end of the receiving plate, the discharge pipe is communicated with the interior of the receiving plate, and the outlet of the discharge pipe extends out of the equipment body.

[0028] Furthermore, a pre-processing assembly is provided in the aggregate inlet, and the pre-processing assembly includes two groups of crushing assemblies and a second motor;

[0029] The crushing assembly includes a crushing roller and a matching gear;

[0030] The two mating gears are meshed with each other, and the second motor is connected to one of the mating gears and is suitable for driving the two mating gears to rotate so as to drive the two rolling rollers to rotate towards each other.

[0031] Furthermore, the outlet of the aggregate inlet communicating with the interior of the equipment body is located directly above the higher end of the screen plate body.

[0032] By adopting the above technical solution, the utility model has the following beneficial effects:

[0033] 1. Through the arrangement of structures such as the extrusion rod and the turntable, an arc-shaped surface is provided on the turntable. When the arc-shaped surface rotates, the contact portion between the extrusion rod and the arc-shaped surface rotates from the low surface of the arc-shaped surface to the high surface. As the extrusion amplitude of the extrusion rod changes from the low surface to the high surface, the extrusion rod is gradually increased. After being squeezed, the extrusion rod is deflected, thereby driving the screen plate body to deflect. After the screen plate body is reset by the reset assembly, it continues to be squeezed and deflected, thereby achieving horizontal shaking and improving the efficiency and quality of screening.

[0034] 2. Through the setting of structures such as cam and impact block, the cam will continuously squeeze the rotating rod when it rotates. After the rotating rod is squeezed, it will produce an angular deviation. During the deviation process, the impact block is driven to hit the screen part of the screen plate body. The impact of the impact block on the screen generates vibration, which further improves the screening efficiency.

[0035] 3. Through the setting of the structures such as the receiving plate and the discharge pipe, and the inclined setting of the receiving plate, the bone powder falling into the receiving plate on the screen will slide into the inside of the discharge pipe due to the inclined setting, and the discharge pipe will extend to the outside of the equipment body, thereby achieving the effect of automatic discharge.

[0036] 4. Through the setting of the pretreatment component, when the bone powder enters the aggregate inlet, the two rolling rollers rotating in opposite directions roll the bone powder to achieve the pretreatment effect, and further crush the cement stone and old cement mortar remaining in the bone powder, thereby improving the efficiency of subsequent screening work. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0038] Figure 2 Schematic diagram of the internal structure of the device of this utility model Figure 1 ;

[0039] Figure 3 Schematic diagram of the internal structure of the device of this utility model Figure 2 ;

[0040] Figure 4 This is a schematic diagram of the main structure of the screen plate of the utility model;

[0041] Figure 5 For the utility model Figure 4 Enlarged view of point A in the middle;

[0042] Figure 6 This is a schematic structural diagram of the vibration component of the present utility model.

[0043] In the figure: 1. Equipment body; 2. Aggregate inlet;

[0044] 3. Screen plate body; 31. Protective plate; 32. Screen;

[0045] 4. Horizontal shaking assembly; 41. Sliding rod; 42. Return spring; 43. Extrusion rod; 44. Turntable; 45. Arc surface; 46. Stabilizing rod;

[0046] 5. Vibration assembly; 51. Cam; 52. Connecting plate; 53. Rotating rod; 54. Impact block;

[0047] 6. Drive assembly; 61. Motor 1; 62. Rotating shaft;

[0048] 7. Collection assembly; 71. Storage plate; 72. Discharge pipe;

[0049] 8. Pretreatment assembly; 81. Roller; 82. Matching gear; 83. Motor 2;

[0050] 9. Place the sleeve; 10. Place the board. DETAILED DESCRIPTION

[0051] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0052] Example 1

[0053] like Figure 1-5 As shown, the building recycled aggregate grading and screening device includes:

[0054] Device body 1;

[0055] Aggregate inlet 2, which is connected to the top of the equipment body 1 and communicates with the internal space of the equipment body 1;

[0056] At least two sieve plate bodies 3 are provided in the equipment body 1. The sieve plate bodies 3 are tilted and include a protective plate 31 and a sieve mesh 32. The sieve mesh 32 is connected to the protective plate 31.

[0057] Each sieve plate body 3 is provided with a horizontal shaking assembly 4, which includes an extrusion rod 43 and a turntable 44 connected to the bottom of the protective plate 31. The turntable 44 is provided with an arc surface 45. The extrusion rod 43 is provided in contact with the arc surface 45. The extrusion rod 43 and the turntable 44 are both located at the higher end of the sieve plate body 3;

[0058] The driving assembly 6 is connected to the rotating disk 44 and is suitable for driving the rotating disk 44 to rotate, thereby driving the arc surface 45 to rotate to squeeze the squeezing rod 43;

[0059] Reset components are provided between both sides of the protection plate 31 and the device body 1 , and the reset components are suitable for resetting the sieve plate body 3 after being driven by the extrusion rod 43 to deflect.

[0060] like Figure 3 As shown, the reset assembly includes a sliding rod 41, a stabilizing rod 46 and a reset spring 42;

[0061] The sliding rod 41 is connected to the higher end of the protective plate 31, and the stabilizing rod 46 is connected to the lower end of the protective plate 31;

[0062] Sliding grooves are provided in the device body 1 at positions corresponding to the sliding rod 41 and the stabilizing rod 46, and the sliding rod 41 and the stabilizing rod 46 are slidably connected in the corresponding sliding grooves respectively;

[0063] One end of the return spring 42 is connected to the outer peripheral surface of the sliding rod 41 , and the other end of the return spring 42 is connected to the end surface of the sliding groove corresponding to the sliding rod 41 .

[0064] like Figure 6 As shown, the construction recycled aggregate grading and screening device further includes a vibration assembly 5, which includes a cam 51 and a vibration component;

[0065] The cam 51 is adapted to be driven by the driving assembly 6 to rotate so as to strike the vibrating component, thereby driving the vibrating component to strike the screen 32 .

[0066] like Figure 6 As shown, the vibration component includes a connecting plate 52, a rotating rod 53 and an impact block 54;

[0067] The connecting plate 52 is connected to the bottom of the protective plate 31, the rotating rod 53 is rotatably installed in the connecting plate 52, and the impact block 54 is connected to one end of the rotating rod 53. The rotating rod 53 is suitable for being driven to swing on the connecting plate 52 when the cam 51 rotates, thereby driving the impact block 54 to collide with the screen 32.

[0068] like Figure 4 As shown, the driving assembly 6 includes a motor 61 and a rotating shaft 62;

[0069] The motor 1 61 and the rotating shaft 62 are both located in the device body 1 , and the motor 1 61 is connected to the rotating shaft 62 to drive the rotating shaft 62 to rotate in the device body 1 .

[0070] like Figure 4 As shown, the outer movable sleeve of the rotating shaft 62 is provided with a placement sleeve 9, one end of which is connected to the inner wall of the device body 1;

[0071] A placement plate 10 is provided at the bottom of the motor 1 61 , and one end of the placement plate 10 is connected to the inner wall of the device body 1 .

[0072] The working principle of this embodiment is as follows:

[0073] First, the aggregate is put into the interior of the equipment body 1 through the aggregate inlet 2. After entering the equipment body 1, the aggregate will fall on the top screen 32. The protective plate 31 provided on the screen 32 prevents the aggregate from falling outside the screen 32 during the screening process.

[0074] The interior of the device body 1 is provided with a plurality of sieve plate bodies 3 with the same structure except that the aperture sizes of the sieve meshes 32 are different, and a component for controlling the movement of the sieve plate bodies 3 is provided. The sieve plate body 3 located at the top will filter the bone powder that does not meet the aperture size of its own sieve mesh 32 to the sieve plate body 3 below. Similarly, the smaller the aperture size of the sieve mesh 32, the finer the bone powder obtained, thereby achieving a graded screening effect;

[0075] During the screening process, the driving component 6 starts to drive the horizontal shaking component 4 and the vibration component 5 to start screening the bone powder on the screen 32 at the same time;

[0076] After the driving assembly 6 is started, the motor 61 drives the rotating rod 53 to rotate, and the rotating rod 53 drives the turntable 44 and the arc surface 45 thereon to rotate. The arc surface 45 contacts the extrusion rod 43 connected to the bottom of the protective plate 31. The initial contact position is that the extrusion rod 43 contacts the lowest point of the arc surface 45. Under the rotation of the arc surface 45, the contact surface of the two turns from the lowest point to the highest point. During this transition, the extrusion plate is squeezed to produce a horizontal position offset, thereby driving the protective plate 31 and the screen 32 to deviate horizontally. During the offset, the sliding rod 41 and the stabilizing rod 46 on the protective plate 31 are both in the main position of the equipment. The inner wall of the body 1 slides horizontally, and a return spring 42 is connected between the sliding rod 41 and the end surface of the inner wall. When the contact surface between the arc surface 45 and the extrusion rod 43 reaches the highest point, the offset is the maximum value, and the arc surface 45 continues to rotate and gradually rotates from the highest surface to the lowest surface. In this process, the protective plate 31 is gradually reset by the reaction force of the return spring 42. During the reset process, the extrusion rod 43 is still in contact with the arc surface 45. The effect of the horizontal reciprocating motion of the protective plate 31 and the screen 32 is achieved over and over again, so that the bone powder on the screen 32 can be evenly spread and sieved;

[0077] The vibration component 5 is synchronized with the horizontal shaking component 4. When the motor 61 drives the rotating rod 53 to rotate, the rotating rod 53 also drives the cam 51 to rotate. A rotatable connecting rod is provided in the connecting plate 52 connected to the bottom of the protective plate 31. The connecting rod rotating shaft 62 is located at the end of the connecting plate 52 away from the screen 32. The rotating rod 53 is connected to the impact block 54. The impact block 54 is located below the screen 32 in the opposite direction of the rotating shaft 62. The cam 51 is located in the middle position of the rotating rod 53. When the cam 51 rotates, the convex surface squeezes the rotating rod 53, thereby driving one end of the impact block 54 to tilt upward, causing the impact The block 54 hits the bottom of the screen 32, causing the screen 32 to vibrate, and the vibration force is transmitted to the bone powder. When the convex surface of the cam 51 is not in contact with the rotating rod 53, the rotating rod 53 is reset and deflected downward due to gravity, and the rotating rod 53 is repeatedly moved back and forth in the longitudinal direction, continuously vibrating the screen 32, further improving the quality and efficiency of screening. It should be noted that the width of the cam 51 is greater than the width of the rotating rod 53. Therefore, even if the rotating rod 53 is offset in the horizontal position under the drive of the horizontal shaking component 4, it will not affect the squeezing of the rotating rod 53 when the cam 51 rotates.

[0078] Example 2

[0079] like Figure 2-3 As shown, this embodiment further includes the following structures based on the first embodiment: a collecting assembly 7 corresponding to the sieve plate body 3 is provided in the device body 1;

[0080] The collecting assembly 7 is located below the lower end of the screen plate body 3 , and is suitable for collecting aggregate on the screen plate body 3 and sending it out of the equipment body 1 .

[0081] like Figure 2-3 As shown, the collecting assembly 7 includes a receiving plate 71 and a discharge pipe 72 arranged obliquely;

[0082] The inlet of the discharge pipe 72 is connected to the lower end of the receiving plate 71 , the discharge pipe 72 is communicated with the interior of the receiving plate 71 , and the outlet of the discharge pipe 72 extends out of the equipment body 1 .

[0083] like Figure 1-3 As shown, a pre-processing assembly 8 is provided in the aggregate inlet 2, and the pre-processing assembly 8 includes two sets of crushing assemblies and a second motor 83;

[0084] The crushing assembly includes a crushing roller 81 and a matching gear 82;

[0085] The two mating gears 82 are meshed with each other, and the second motor 83 is connected to one of the mating gears 82 to drive the two mating gears 82 to rotate, thereby driving the two laminating rollers 81 to rotate towards each other.

[0086] like Figure 2-3 As shown, the outlet of the aggregate inlet 2 communicating with the interior of the equipment body 1 is located directly above the higher end of the screen plate body 3 .

[0087] The working principle of this embodiment is as follows:

[0088] The screened bone powder will slide into the inside of the receiving plate 71 through the inclined setting of the screen 32. The receiving plate 71 is also inclined. The bone powder that slides into the receiving plate 71 slides to the bottom of the receiving plate 71. A discharge pipe 72 that communicates with the internal space is provided at the bottom of the receiving plate 71. The outlet of the discharge pipe 72 is located outside the device body 1. Finally, the bone powder will flow out of the device body 1 along the discharge pipe 72, and the operator can collect the bone powder.

[0089] The surface of the recycled aggregate often adheres to some cement stone and old cement mortar. In order to make the screening work more effective, the aggregate needs to be pre-processed. When the aggregate enters the aggregate inlet 2, the pre-processing component 8 is started, and the motor 2 83 drives one of the matching gears 82 to rotate. Since the two matching gears 82 are meshed with each other, they can drive the two matching gears 82 to rotate in opposite directions, and then drive the two rolling rollers 81 to rotate in opposite directions to further grind and crush the incoming aggregate, thereby improving the efficiency and quality of subsequent screening work;

[0090] The pretreated bone powder passes through the internal channel of the aggregate inlet 2 and eventually falls on the highest point of the inclined screen 32 at the top. During the screening process, the bone powder is shaken and vibrated while sliding downward along the inclined surface of the screen 32, thereby improving the screening path and thus improving the screening effect.

[0091] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Construction recycled aggregate grading and screening device, characterized by: include: Device body (1); An aggregate inlet (2), the aggregate inlet (2) being connected to the top of the equipment body (1), and the aggregate inlet (2) being in communication with the internal space of the equipment body (1); At least two sieve plate bodies (3) are arranged in the equipment body (1), the sieve plate bodies (3) are arranged obliquely, the sieve plate bodies (3) include a protective plate (31) and a sieve mesh (32), and the sieve mesh (32) is connected in the protective plate (31); Each of the sieve plate bodies (3) is provided with a horizontal shaking assembly (4), the horizontal shaking assembly (4) comprising an extrusion rod (43) and a rotating disk (44) connected to the bottom of the protective plate (31), the rotating disk (44) being provided with an arcuate surface (45), the extrusion rod (43) being arranged in contact with the arcuate surface (45), and the extrusion rod (43) and the rotating disk (44) being both located at a higher end of the sieve plate body (3); A driving assembly (6), wherein the driving assembly (6) is adapted to drive the rotating disk (44) to rotate, thereby driving the arc-shaped surface (45) to rotate to squeeze the squeezing rod (43); Reset assemblies are provided between both sides of the protective plate (31) and the device body (1), and the reset assemblies are suitable for resetting the sieve plate body (3) after being driven to deflect by the extrusion rod (43).

2. The construction recycled aggregate grading and screening device according to claim 1, characterized in that: The reset assembly includes a sliding rod (41), a stabilizing rod (46) and a reset spring (42); The sliding rod (41) is connected to the higher end of the protective plate (31), and the stabilizing rod (46) is connected to the lower end of the protective plate (31); Sliding grooves are provided in the device body (1) at positions corresponding to the sliding rod (41) and the stabilizing rod (46), and the sliding rod (41) and the stabilizing rod (46) are respectively slidably connected in the corresponding sliding grooves; One end of the return spring (42) is connected to the outer peripheral surface of the sliding rod (41), and the other end of the return spring (42) is connected to the end surface of the sliding groove corresponding to the sliding rod (41).

3. The construction recycled aggregate grading and screening device according to claim 1, characterized in that: Also included is a vibration assembly (5), wherein the vibration assembly (5) includes a cam (51) and a vibration component; The cam (51) is adapted to be driven by the driving assembly (6) to rotate so as to strike the vibrating component, thereby driving the vibrating component to strike the screen (32).

4. The construction recycled aggregate grading and screening device according to claim 3, characterized in that: The vibration component includes a connecting plate (52), a rotating rod (53) and an impact block (54); The connecting plate (52) is connected to the bottom of the protective plate (31), the rotating rod (53) is rotatably installed in the connecting plate (52), and the impact block (54) is connected to one end of the rotating rod (53). The rotating rod (53) is suitable for being driven to swing on the connecting plate (52) when the cam (51) rotates, thereby driving the impact block (54) to collide with the screen (32).

5. The construction recycled aggregate grading and screening device according to claim 1 or 3, characterized in that: The driving assembly (6) includes a motor (61) and a rotating shaft (62); The motor 1 (61) and the rotating shaft (62) are both located in the device body (1), and the motor 1 (61) is connected to the rotating shaft (62) so as to be suitable for driving the rotating shaft (62) to rotate in the device body (1).

6. The construction recycled aggregate grading and screening device according to claim 5, characterized in that: The outer movable sleeve of the rotating shaft (62) is provided with a placement sleeve (9), and one end of the placement sleeve (9) is connected to the inner wall of the device body (1); A placement plate (10) is provided at the bottom of the motor 1 (61), and one end of the placement plate (10) is connected to the inner wall of the device body (1).

7. The construction recycled aggregate grading and screening device according to claim 1, characterized in that: A collecting assembly (7) corresponding to the sieve plate body (3) is provided in the device body (1); The collecting assembly (7) is located below the lower end of the screen plate body (3), and the collecting assembly (7) is suitable for collecting aggregate on the screen plate body (3) and sending it out of the equipment body (1).

8. The construction recycled aggregate grading and screening device according to claim 7, characterized in that: The collecting assembly (7) comprises a tilted receiving plate (71) and a discharge pipe (72); The inlet of the discharge pipe (72) is connected to the lower end of the receiving plate (71), the discharge pipe (72) is communicated with the interior of the receiving plate (71), and the outlet of the discharge pipe (72) extends out of the equipment body (1).

9. The construction recycled aggregate grading and screening device according to claim 1, characterized in that: A pre-processing assembly (8) is provided in the aggregate inlet (2), and the pre-processing assembly (8) includes two groups of crushing assemblies and a second motor (83); The crushing assembly includes a crushing roller (81) and a matching gear (82); The two mating gears (82) are meshed with each other, and the second motor (83) is connected to one of the mating gears (82) and is suitable for driving the two mating gears (82) to rotate so as to drive the two rolling rollers (81) to rotate towards each other.

10. The construction recycled aggregate grading and screening device according to claim 9, characterized in that: The outlet of the aggregate inlet (2) communicating with the interior of the equipment body (1) is located directly above the higher end of the screen plate body (3).

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