Building waste slag stone crushing, screening and separating device
By integrating crushing and screening mechanisms, the device solves the problems of numerous equipment and large land area in the processing of construction waste slag, and realizes efficient and economical production of recycled aggregates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, the crushing and screening process for construction waste requires multiple pieces of equipment, resulting in time-consuming and labor-intensive transfer procedures that also require a large area of land.
Design a device that integrates crushing, primary screening and secondary screening mechanisms. The crushing mechanism processes construction waste into recycled coarse aggregate and recycled fine aggregate. The equipment is arranged in a longitudinal space to reduce transfer steps and floor space.
It enables efficient processing of construction waste, reduces transfer steps, saves time and effort, and also reduces the footprint required for the equipment.
Smart Images
Figure CN223970096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recycled concrete production technology, and in particular to a crushing, screening and separation device for construction waste slag. Background Technology
[0002] Recycled concrete utilizes recycled aggregates, processed from crushed construction waste, as raw materials. During production, the construction waste undergoes several processes, including crushing and screening, to create recycled aggregates with the required particle size. Generally, particles smaller than 5mm are classified as fine recycled aggregates, while those larger than 5mm are classified as coarse recycled aggregates. Currently, the process of transforming construction waste into recycled fine and coarse aggregates requires multiple pieces of equipment. The intermediate transfer steps are time-consuming and labor-intensive, and the equipment occupies a large area. Therefore, it is necessary to develop a processing device that integrates crushing and screening functions to facilitate the processing of construction waste. Utility Model Content
[0003] In view of this, the present invention proposes a crushing, screening and separating device for construction waste slag, which aims to improve the processing convenience of construction waste slag and reduce the footprint of the equipment.
[0004] The solution provided by this utility model includes:
[0005] A crushing, screening, and separating device for construction waste slag includes:
[0006] The machine frame, crushing mechanism, primary screening mechanism, and secondary screening mechanism;
[0007] The crushing mechanism includes a housing, inside which are arranged a first rotating shaft and a second rotating shaft arranged in parallel. The first rotating shaft and the second rotating shaft are provided with intersecting crushing wheels, and the outer peripheral wall of the crushing wheel is provided with crushing teeth. The side wall of the housing is provided with a plurality of guide blocks, which are arranged between two axially adjacent crushing wheels. The first rotating shaft is drivenly connected to a first motor, and the second rotating shaft is drivenly connected to the first rotating shaft.
[0008] The primary screening mechanism is located at the output end of the crushing mechanism. The primary screening mechanism includes a screen plate with multiple primary screen holes.
[0009] The secondary screening mechanism is located below the screen plate. The secondary screening mechanism includes a conveying shell, a horizontally arranged conveying channel is formed inside the conveying shell, a spiral conveying shaft is provided inside the conveying channel, and the bottom of the conveying channel is divided into a first discharge section and a second discharge section in the horizontal direction. The first discharge section is provided with a plurality of secondary screen holes, and the second discharge section is provided with a discharge port.
[0010] The crushing mechanism, the primary screening mechanism, and the secondary screening mechanism are arranged sequentially from top to bottom on the frame.
[0011] As a further optional solution, the housing of the crushing mechanism is provided with a vertically penetrating channel, and the first rotating shaft and the second rotating shaft are horizontally distributed and arranged in the channel;
[0012] The top of the conveying shell of the secondary screening mechanism is provided with an opening, which is located above the first discharge section and is connected to the bottom of the shell.
[0013] The sieve plate of the primary screening mechanism is disposed between the housing and the conveying housing.
[0014] As a further optional solution, the primary screening mechanism also includes a limiting plate fixedly disposed on one side of the screen plate, and the limiting plate is provided with a handle;
[0015] The outer side of the conveying shell is provided with an insertion hole for inserting the sieve plate, and the inside of the conveying shell is provided with a support plate for supporting the sieve plate.
[0016] As a further optional solution, the limiting plate is provided with a magnetic block, which forms a magnetic adsorption connection with the outer wall of the conveying shell.
[0017] As a further optional solution, the spiral conveyor shaft is connected to the second motor drive.
[0018] As a further optional solution, the first rotating shaft is provided with a first transmission gear, and the second rotating shaft is provided with a second transmission gear, the first transmission gear meshing with the second transmission gear, and the rotational speeds of the first rotating shaft and the second rotating shaft are 1:1.
[0019] As a further optional solution, storage boxes are respectively provided below the first discharge section and the second discharge section.
[0020] As a further optional solution, a first conveyor belt and a second conveyor belt are respectively provided below the first discharge section and the second discharge section.
[0021] Compared with the prior art, the construction waste crushing, screening and separation device of this application has at least the following advantages:
[0022] This construction waste crushing, screening and separation device integrates a crushing mechanism, a primary screening mechanism and a secondary screening mechanism. It can process construction waste into recycled coarse aggregate and recycled fine aggregate, which can reduce the transfer steps between processing steps and save time and effort. In addition, the crushing mechanism, the primary screening mechanism and the secondary screening mechanism are distributed from top to bottom, making full use of the vertical space, which can reduce the equipment's footprint and reduce the requirements for site area. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a construction waste slag crushing, screening and separation device according to the present invention;
[0024] Figure 2 This is a schematic diagram of the internal structure of a construction waste slag crushing, screening and separation device according to this utility model;
[0025] Figure 3 This is an exploded diagram of the crushing mechanism;
[0026] Figure 4 This is an exploded view of the primary and secondary screening mechanisms;
[0027] Figure 5 This is a schematic diagram of the bottom structure of the secondary screening mechanism;
[0028] Figure 6 This is a schematic diagram illustrating the application of a construction waste slag crushing, screening, and separation device according to this utility model.
[0029] In the diagram: 1. Frame;
[0030] 2. Crushing mechanism; 21. Housing; 211. Guide block; 212. Channel; 22. First rotating shaft; 221. First transmission gear; 23. Second rotating shaft; 231. Second transmission gear; 24. Crushing wheel; 25. First motor;
[0031] 3. Primary screening mechanism; 31. Screen plate; 311. Primary screen aperture; 32. Limiting plate; 33. Handle;
[0032] 4. Secondary screening mechanism; 41. Conveying shell; 41a. First discharge section; 41b. Second discharge section; 411. Opening; 412. Insertion hole; 413. Support plate; 414. Secondary screen hole; 415. Discharge port; 42. Screw conveyor shaft; 43. Second motor;
[0033] 5. First conveyor belt;
[0034] 6. Second conveyor belt. Detailed Implementation
[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0039] refer to Figure 1-6 An embodiment of this utility model shows a crushing, screening and separating device for construction waste slag, including a frame 1, a crushing mechanism 2, a primary screening mechanism 3 and a secondary screening mechanism 4;
[0040] The crushing mechanism 2 includes a housing 21, within which a first rotating shaft 22 and a second rotating shaft 23 are arranged in parallel. Crushing wheels 24 are arranged on the first and second rotating shafts 22 and 23, and each crushing wheel 24 has crushing teeth (not marked in the figure) on its outer peripheral wall. Multiple guide blocks 211 are provided on the side wall of the housing 21, positioned between two axially adjacent crushing wheels 24. The first rotating shaft 22 is connected to a first motor 25, and the second rotating shaft 23 is connected to the first rotating shaft 22. A primary screening mechanism 3 is located at the output end of the crushing mechanism 2, and includes a screen plate 31. The screen plate 31 is provided with a plurality of primary screen holes 311; the secondary screening mechanism 4 is located below the screen plate 31, and the secondary screening mechanism 4 includes a conveying shell 41, in which a horizontally arranged conveying channel (not marked in the figure) is formed, and a spiral conveying shaft 42 is provided in the conveying channel. The bottom of the conveying channel is divided into a first discharge section 41a and a second discharge section 41b in the horizontal direction. The first discharge section 41a is provided with a plurality of secondary screen holes 414, and the second discharge section 41b is provided with a discharge port 415; wherein, the crushing mechanism 2, the primary screening mechanism 3 and the secondary screening mechanism 4 are arranged sequentially from top to bottom on the frame 1.
[0041] Specifically, construction waste slag can be fed into the shell 21. The crushing wheels 24 on the first rotating shaft 22 and the second rotating shaft 23 will crush the slag. The guide block 211 will guide the slag onto the first rotating shaft 22 and the second rotating shaft 23, preventing the slag from passing directly between the first rotating shaft 22 and the inner wall of the shell 21, and between the second rotating shaft 23 and the inner wall of the shell 21. When the particle size of the slag is smaller than the diameter of the primary screen hole 311 of the screen plate 31, the slag will pass through the screen plate 31 and enter the conveying shell 41 of the secondary screening mechanism 4, thus achieving the first screening. In this embodiment, the diameter of the primary screen hole 311 is selected as 16mm, that is, slag with a particle size of less than 16mm can pass through the screen plate 31.
[0042] After the slag enters the conveying shell 41, it is agitated by the screw conveyor shaft 42, causing the slag to move along the conveyor. During the movement of the slag, it moves from the first discharge section 41a to the second discharge section 41b. Slag with a particle size smaller than the diameter of the secondary sieve hole 414 will be screened out in the first discharge section 41a; while slag with a particle size larger than the secondary sieve hole 414 will be conveyed to the second discharge section 41b and leave from the discharge port 415, thus achieving the second screening. In this embodiment, the diameter of the secondary sieve hole 414 is selected as 5mm, that is, slag with a particle size smaller than 5mm is screened out in the first discharge section 41a, while slag with a particle size between 5-16mm leaves in the second discharge section 41b.
[0043] In other embodiments, the diameters of the primary sieve aperture 311 and the secondary sieve aperture 414 can be set according to actual needs.
[0044] The construction waste slag crushing, screening and separation device integrates a crushing mechanism 2, a primary screening mechanism 3 and a secondary screening mechanism 4, which can process construction waste slag into recycled coarse aggregate and recycled fine aggregate, reducing the transfer steps between processing processes and saving time and effort. In addition, the crushing mechanism 2, the primary screening mechanism 3 and the secondary screening mechanism 4 are distributed from top to bottom, making full use of the longitudinal space, which can reduce the equipment's footprint and reduce the requirements for site area.
[0045] Specifically, the above scheme is as follows: Figure 2 and Figure 4 As shown, the spiral conveyor shaft 42 is connected to the second motor 43 for transmission; the first rotating shaft 22 is provided with a first transmission gear 221, and the second rotating shaft 23 is provided with a second transmission gear 231. The first transmission gear 221 and the second transmission gear 231 mesh, and the rotational speeds of the first rotating shaft 22 and the second rotating shaft 23 are 1:1. Thus, the first rotating shaft 22 and the second rotating shaft 23 rotate at the same speed, but in opposite directions.
[0046] In some embodiments, to facilitate material discharge, storage bins (not shown) are respectively provided below the first discharge section 41a and the second discharge section 41b. The storage bins are used to hold the aggregate produced from the slag and stone.
[0047] In other embodiments, to improve the efficiency of automated production, such as Figure 6 As shown, a first conveyor belt 5 and a second conveyor belt 6 are respectively provided below the first discharge section 41a and the second discharge section 41b. In this way, the aggregate screened from the first discharge section 41a can be directly transported away by the first conveyor belt 5, and the aggregate screened from the second discharge section 41b can be directly transported away by the second conveyor belt 6. This embodiment improves the continuity of production.
[0048] The above-mentioned solutions are specific, such as Figure 2 and Figure 3 As shown, the housing 21 of the crushing mechanism 2 is provided with a vertically penetrating channel 212, and the first rotating shaft 22 and the second rotating shaft 23 are horizontally distributed in the channel 212; the top of the conveying shell 41 of the secondary screening mechanism 4 is provided with an opening 411, the opening 411 is located above the first discharge section 41a, and the opening 411 is connected to the bottom of the housing 21; the screen plate 31 of the primary screening mechanism 3 is disposed between the housing 21 and the conveying shell 41.
[0049] Preferably, such as Figure 4As shown, the primary screening mechanism 3 also includes a limiting plate 32 fixedly disposed on one side of the screen plate 31, and a handle 33 is provided on the limiting plate 32; the outer side of the conveying shell 41 is provided with an insertion hole 412 for inserting the screen plate 31, and the inside of the conveying shell 41 is provided with a support plate 413 for supporting the screen plate 31. In this embodiment, the screen plate 31 can be pulled out from the outside of the device, which facilitates the replacement or maintenance of the screen plate 31; in specific operation, when it is necessary to pull out the screen plate 31, the handle 33 can be gripped and pulled outward; when it is necessary to insert the screen plate 31, the handle 33 is gripped and the screen plate 31 is inserted into the insertion hole 412 until the limiting plate 32 abuts against the outer wall of the conveying shell 41. There are two support plates 413, which support the bottom of both sides of the screen plate 31 to ensure that the screen plate 31 can stably bear the slag falling from above.
[0050] Furthermore, to improve the installation stability of the sieve plate 31, a magnetic block (not shown) is provided on the limiting plate 32, and the magnetic block forms a magnetic adsorption connection with the outer wall of the conveying shell 41. This prevents the sieve plate 31 from easily loosening.
[0051] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A construction waste debris crushing, screening and separating apparatus, characterized in that, The building waste stone crushing and screening separation device comprises a rack, a crushing mechanism, a primary screening mechanism and a secondary screening mechanism. The crushing mechanism comprises a shell, a first rotating shaft and a second rotating shaft arranged in parallel in the shell, interlaced crushing rollers arranged on the first rotating shaft and the second rotating shaft, and crushing teeth arranged on the outer peripheral wall of the crushing rollers. The primary screening mechanism is arranged at the output end of the crushing mechanism and comprises a sieve plate provided with a plurality of primary screen holes. The secondary screening mechanism is arranged below the sieve plate and comprises a conveying shell, a conveying channel arranged horizontally in the conveying shell, a spiral conveying shaft arranged in the conveying channel, a first discharge section and a second discharge section divided along the horizontal direction at the bottom of the conveying channel, a plurality of secondary screen holes arranged on the first discharge section, and a discharge port arranged on the second discharge section. The crushing mechanism, the primary screening mechanism and the secondary screening mechanism are sequentially arranged on the rack from top to bottom.
2. The building waste stone crushing and screening separation device according to claim 1, wherein the shell of the crushing mechanism is provided with a vertical channel, and the first rotating shaft and the second rotating shaft are horizontally arranged in the channel. The top of the conveying shell of the secondary screening mechanism is provided with an opening located above the first discharge section, and the opening is connected to the bottom of the shell. The sieve plate of the primary screening mechanism is arranged between the shell and the conveying shell.
3. The building waste stone crushing and screening separation device according to claim 2, wherein the primary screening mechanism further comprises a limiting plate fixedly arranged on one side of the sieve plate, and the limiting plate is provided with a handle. The outer side of the conveying shell is provided with a insertion hole for inserting the sieve plate, and the conveying shell is provided with a supporting plate for supporting the sieve plate.
4. The building waste stone crushing and screening separation device according to claim 3, wherein the limiting plate is provided with a magnetic block, and the magnetic block is magnetically connected to the outer wall of the conveying shell.
5. The building waste stone crushing and screening separation device according to claim 1, wherein the spiral conveying shaft is connected to a second motor.
6. The building waste stone crushing and screening separation device according to claim 1, wherein the first rotating shaft is provided with a first transmission gear, the second rotating shaft is provided with a second transmission gear, the first transmission gear is engaged with the second transmission gear, and the rotating speeds of the first rotating shaft and the second rotating shaft are 1:
1.
7. The building waste stone crushing and screening separation device according to claim 1, wherein the first discharge section and the second discharge section are respectively provided with a storage tank below.
8. The building waste stone crushing and screening separation device according to claim 1, wherein the first discharge section and the second discharge section are respectively provided with a first conveying belt and a second conveying belt below.