Wet concrete gravel waste separation treatment device
By introducing a pitching and rotating drive mechanism for the outer sleeve into the wet concrete sand and gravel waste separation and treatment device, the problem of material retention in the screening equipment is solved, achieving efficient separation and automated discharge of sand and gravel, and improving the operational stability and efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI CONSTR GRP
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing screening equipment is prone to material retention problems, especially when the screen cylinder stops rotating or there is little material, making it difficult for the material to move out of the screen cylinder, resulting in retention.
A wet concrete sand and gravel waste separation and treatment device is adopted, including a support frame, an outer sleeve, a screen cylinder, a rotary drive mechanism, and a pitching and swinging mechanism. By pitching and swinging the outer sleeve, the opening can be made to face upward or downward. Combined with the use of the rotary drive mechanism, the screening and discharge process can be automatically controlled, reducing material retention.
The tilting discharge method effectively reduces the amount of material remaining in the outer casing, improves screening efficiency and material separation, and ensures that sand and gravel can be collected separately.
Smart Images
Figure CN224181279U_ABST
Abstract
Description
A wet concrete sand and gravel waste separation and treatment device Technical Field
[0001] This application belongs to the field of sand and gravel waste treatment technology, specifically relating to a wet concrete sand and gravel waste separation and treatment device. Background Technology
[0002] Concrete, as a widely used material in the construction industry, generates a large amount of waste during construction production activities, with waste concrete accounting for the majority. Before the waste concrete solidifies, sand and gravel can be separated by washing, and then the sand and gravel can be screened through a screen to complete the separation of sand and gravel.
[0003] Existing screening equipment includes an inclined outer sleeve and a screen cylinder rotatably disposed inside the outer sleeve. The rotation of the screen cylinder enables the separation of sand and stone. The discharge method of the above screening equipment is to move the material from the high end to the low end by means of the inclination of the screen cylinder and the rotation of the screen cylinder, so as to achieve the purpose of discharge. When the screen cylinder stops rotating or there is little material in the screen cylinder, the material is difficult to move out of the screen cylinder, so material will remain in the screen cylinder. Summary of the Invention
[0004] This application provides a wet concrete sand and gravel waste separation and treatment device, which aims to solve the problem that the screening method in the prior art is prone to material retention.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0006] A wet concrete aggregate separation and treatment device is provided, comprising a support frame, an outer sleeve, a screen cylinder, a rotary drive mechanism, and a pitching and swinging mechanism. The outer sleeve is mounted on the support frame and has a horizontally mounted rotating shaft. The outer sleeve is rotatably connected to the support frame via the rotating shaft. The bottom of the outer sleeve has a drain outlet with a valve at the drain outlet. The screen cylinder is disposed inside the outer sleeve, and the rotary drive mechanism is connected to the bottom of the outer sleeve. The rotating end of the rotary drive mechanism passes through the outer sleeve and is connected to the bottom of the screen cylinder, allowing the screen cylinder to rotate inside the outer sleeve. The pitching and swinging mechanism is mounted on the support frame, and its drive end is connected to the rotating shaft to drive the rotating shaft to rotate, causing the outer sleeve to swing up and down. When the opening of the outer sleeve faces upward, the screen cylinder can rotate under the drive of the rotary drive mechanism to screen materials. When the opening of the outer sleeve faces downward, it is in the discharge state.
[0007] In one possible implementation, there is a gap between the bottom of the sieve cylinder and the bottom wall of the outer sleeve, and a sieve plate is provided inside the outer sleeve at the bottom of the sieve cylinder, wherein the diameter of the sieve holes of the sieve plate is smaller than the particle size of the sand, so as to separate sand and water.
[0008] The sieve plate and the sieve cylinder divide the outer sleeve into three parts: the inside of the sieve cylinder is the feeding and sand-gravel separation part; the space between the sieve cylinder and the outer sleeve is the sand and water holding part; and the space between the sieve plate and the bottom of the outer sleeve is the drainage part.
[0009] In one possible implementation, the open end of the outer sleeve is provided with an annular cover, the annular cover is detachably connected to the outer sleeve, and the annular cover is inserted into the open end of the sieve cylinder; the annular cover can play a circumferential limiting role for the outer sleeve.
[0010] When the outer sleeve swings to the discharge state, the stone material inside the screen cylinder can fall downwards, and the annular cover can block the sand material; after the stone material is discharged, the annular cover separates from the outer sleeve, and the sand material can fall downwards.
[0011] In one possible implementation, a water spray pipe can be provided on the annular cover, with one end of the water spray pipe facing the screen cylinder and the other end of the water spray pipe connected to a water source via a hose.
[0012] In one possible implementation, the pitch oscillation mechanism includes:
[0013] A worm gear is connected to the rotating shaft, and the worm gear is fixed relative to the rotating shaft.
[0014] A worm gear is rotatably mounted on the support frame, and the worm gear is fixed relative to the support frame;
[0015] A servo motor is connected to the support frame; the output shaft of the servo motor is connected to the worm gear.
[0016] In one possible implementation, the rotary drive mechanism includes:
[0017] A connecting disc is bolted to the bottom of the screen cylinder; a connecting shaft is located in the middle of the connecting disc, the connecting shaft passes through the bottom of the outer sleeve, and the connecting shaft is sealed to the outer sleeve;
[0018] A drive motor is connected to the bottom of the outer sleeve, and the output shaft of the drive motor is connected to the connecting shaft through a coupling to drive the screen cylinder to rotate.
[0019] In one possible implementation, the bottom of the outer sleeve has a mounting bracket, on which the drive motor is mounted.
[0020] In one possible implementation, the connecting shaft has a positioning threaded hole located on the outside of the outer sleeve, and the connecting shaft has a positioning bolt at the position of the positioning threaded hole, the positioning bolt being able to contact the bottom of the outer sleeve;
[0021] The screen cylinder has a gap between its bottom and the bottom wall of the outer sleeve, and a screen plate is located inside the outer sleeve at the bottom of the screen cylinder. The screen cylinder has a conical structure with its large end facing outward. The screen plate has a conical hole that is inserted into and fitted with the small end of the screen cylinder.
[0022] In one possible implementation, the outer sleeve is tilted during the screening process, with its opening facing upwards.
[0023] In one possible implementation, the drain outlet at the bottom of the outer sleeve is connected to a sewage treatment device via a hose.
[0024] This application provides a wet concrete sand and gravel waste separation and treatment device. Compared with the prior art, the outer sleeve is rotated to an upward-facing position under the drive of the pitching and swinging mechanism, and then wet concrete waste is poured into the screen cylinder, and water is added to the screen cylinder. The screen cylinder is rotated under the drive of the rotation drive mechanism. During the rotation, the sand and stone in the wet concrete can gradually separate out. Under the screening action of the screen cylinder, the smaller diameter sand can pass through the screen cylinder, while the smaller diameter stone remains in the screen cylinder. After screening, wastewater can be discharged through the drain outlet. Under the drive of the pitching and swinging mechanism, the outer sleeve can be placed with the open end facing downward, at which time the sand and stone can be discharged from the outer sleeve. Through the above-mentioned tilting discharge method of this application, the amount of material remaining in the outer sleeve can be reduced. Attached Figure Description
[0025] Figure 1 is a schematic diagram of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application;
[0026] Figure 2 is a schematic diagram of the outer sleeve portion of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application;
[0027] Figure 3 is a schematic diagram of the mounting frame portion of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application;
[0028] Figure 4 is an enlarged schematic diagram of part A in Figure 3;
[0029] Figure 5 is a front view of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application;
[0030] Figure 6 is a cross-sectional view of the outer sleeve portion of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application;
[0031] Figure 7 is a cross-sectional view of the screen cylinder portion of a wet concrete sand and gravel waste separation and treatment device provided in an embodiment of this application.
[0032] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Outer sleeve; 21. Drain pipe; 22. Rotating shaft; 3. Screen cylinder; 31. Insertion sleeve; 4. Rotary drive mechanism; 41. Connecting plate; 42. Drive motor; 43. Connecting shaft; 44. Mounting bracket; 45. Positioning bolt; 5. Pitch and swing mechanism; 51. Worm gear; 52. Worm; 53. Servo motor; 54. Housing; 6. Screen plate; 7. Annular cover. Detailed Implementation
[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0034] Please refer to Figures 1 to 7. The wet concrete sand and gravel waste separation and treatment device provided in this application will now be described. The wet concrete sand and gravel waste separation and treatment device includes a support frame 1, an outer sleeve 2, a screen cylinder 3, a rotary drive mechanism 4, and a pitching and swinging mechanism 5. The outer sleeve 2 is mounted on the support frame 1 and has a horizontally arranged rotating shaft 22. The outer sleeve 2 is rotatably connected to the support frame 1 via the rotating shaft 22. The bottom of the outer sleeve 2 has a drain outlet, and a drain pipe 21 is connected to the drain outlet. A valve (not shown in the figure) is installed on the drain pipe 21. The screen cylinder 3 is disposed inside the outer sleeve 2, and the rotary drive mechanism 4 is connected to the bottom of the outer sleeve 2. The rotating end of the rotary drive mechanism 4 passes through the outer sleeve 2 and... The screen cylinder 3 is connected to the bottom of the outer sleeve 2 so that the screen cylinder 3 can rotate inside the outer sleeve 2; the pitch swing mechanism 5 is set on the support frame 1, and the driving end of the pitch swing mechanism 5 is connected to the rotating shaft 22 to drive the rotating shaft 22 to rotate so that the outer sleeve 2 swings up and down; when the opening of the outer sleeve 2 is facing upward, the screen cylinder 3 can rotate under the drive of the rotary drive mechanism 4 to screen the material; when the opening of the outer sleeve 2 is facing downward, it is in the discharge state; the aperture of the screen cylinder 3 is smaller than the particle size of the stone and larger than the particle size of the sand; during the screening process, the outer sleeve 2 is in an inclined state and the opening of the outer sleeve 2 is facing upward.
[0035] This application provides a wet concrete sand and gravel waste separation and treatment device. Compared with the prior art, the outer sleeve 2 is rotated to the position with the opening facing upward under the drive of the pitch swing mechanism 5, and then wet concrete waste is poured into the screen cylinder 3 and water is added to the screen cylinder 3. The screen cylinder 3 is rotated under the drive of the rotation drive mechanism 4. During the rotation, the sand and stone in the wet concrete can gradually separate out. Under the screening action of the screen cylinder 3, the smaller diameter sand can pass through the screen cylinder 3, and the smaller diameter stone remains in the screen cylinder 3. After screening, wastewater can be discharged through the drain outlet. Under the drive of the pitch swing mechanism 5, the outer sleeve 2 can be placed with the opening end facing downward, at which time the sand and stone can be discharged from the outer sleeve 2. Through the above-mentioned tilting discharge method of this application, the amount of material remaining in the outer sleeve 2 can be reduced.
[0036] It should be noted that during discharge, a cloth bag can be placed over the screen cylinder 3 and secured with clamps. When the opening of the outer sleeve 2 swings to a downward position, a collection cylinder is placed below. The stones inside the screen cylinder 3 can fall into the cloth bag, and the sand between the screen cylinder 3 and the outer sleeve 2 can fall into the collection cylinder. This setup allows for separate storage of stones and sand. Operators can use tools to scrape out the stones from the screen cylinder 3 and the sand between the screen cylinder 3 and the outer sleeve 2. This setup further reduces the amount of material remaining in the outer sleeve 2.
[0037] In some embodiments, as shown in Figures 1 to 7, there is a gap between the bottom of the screen cylinder 3 and the bottom wall of the outer sleeve 2. Inside the outer sleeve 2, at the bottom of the screen cylinder 3, there is a screen plate 6. The diameter of the screen holes on the screen plate 6 is smaller than the particle size of the sand, so as to screen sand and water. The screen plate 6 and the screen cylinder 3 divide the outer sleeve 2 into three parts: the inside of the screen cylinder 3 is the feeding and sand-gravel separation part; the space between the screen cylinder 3 and the outer sleeve 2 is the sand and water receiving part; and the space between the screen plate 6 and the bottom of the outer sleeve 2 is the drainage part.
[0038] It should be noted that by setting the screen plate 6 inside the outer sleeve 2, the sand and water can be separated, and the sand can be retained between the screen cylinder 3 and the outer sleeve 2. When draining through the drain outlet, the amount of sand discharged with the wastewater can be reduced. The screen plate 6 has a ring structure, and the screen plate 6 and the screen cylinder 3 are connected by an interlocking joint. Therefore, the screen plate 6 can also play a circumferential limiting role for the screen cylinder 3, improving the stability of the screen cylinder 3 when it rotates.
[0039] In some embodiments, as shown in Figures 1 to 7, the open end of the outer sleeve 2 is provided with an annular cover 7, which is detachably connected to the outer sleeve 2 and is inserted into the open end of the screen cylinder 3. The annular cover 7 can play a circumferential limiting role for the outer sleeve 2. When the outer sleeve 2 swings to the discharge state, the stone material in the screen cylinder 3 can fall downwards, and the annular cover 7 can block the sand material. After the stone material is discharged, the annular cover 7 separates from the outer sleeve 2, and the sand material can fall downwards.
[0040] It should be noted that the outer sleeve 2 has several threaded holes at its open end, and the annular cover 7 has through holes that are aligned with the threaded holes. After the annular cover 7 is installed on the outer sleeve 2, it is fixed by bolts. During the rotation of the screen cylinder 3, the annular cover 7 plays a circumferential limiting role on the screen cylinder 3, thereby improving the stability of the screen cylinder 3 during rotation.
[0041] During the discharge process, first pour out the stone material inside the outer sleeve 2 and place the stone material in a container; then remove the ring cover 7 and pour the sand material inside the outer sleeve 2 into another container; when removing the ring cover 7, the outer sleeve 2 can be swung to the working position first, so that the sand material will not push against the ring cover 7 during the disassembly and assembly process.
[0042] In some embodiments, as shown in Figures 1 to 7, a water spray pipe (not shown) can be provided on the annular cover 7, with one end of the water spray pipe facing the screen cylinder 3 and the other end of the water spray pipe connected to a water source via a hose.
[0043] It should be noted that the water spray pipe can be fixed on the annular cover 7, with the water spray pipe pointing from the open end of the screen cylinder 3 toward the inside of the screen cylinder 3; water can be sprayed into the screen cylinder 3 through the water spray pipe to clean the wet concrete inside the screen cylinder 3; centrifugal screening can be achieved by rotating the screen cylinder 3.
[0044] In some embodiments, as shown in Figures 1 to 7, the pitch oscillation mechanism 5 includes a worm gear 51, a worm 52, and a servo motor 53; the worm gear 51 is connected to the rotating shaft 22, and the worm gear 51 and the rotating shaft 22 are relatively fixed; the worm 52 is rotatably mounted on the support frame 1, and the worm 52 and the support frame 1 are relatively fixed; the servo motor 53 is connected to the support frame 1; the output shaft of the servo motor 53 is connected to the worm 52 through a coupling, and the worm gear 51 and the rotating shaft 22 are connected by a key.
[0045] It should be noted that the worm gear 51 and worm 52 are installed inside the housing 54, and the housing 54 is fixed on the connecting frame. The worm 52 is driven to rotate by the servo motor 53, which in turn drives the worm gear 51 to rotate, thereby causing the outer sleeve 2 to swing up and down. The worm gear 51 and worm 52 have a self-locking function. After the position is adjusted, the outer sleeve 2 will not rotate around the axis, thus improving stability.
[0046] In some embodiments, as shown in Figures 1 to 7, the rotary drive mechanism 4 includes a connecting disc 41 and a drive motor 42; the connecting disc 41 is bolted to the bottom of the screen cylinder 3; a connecting shaft 43 is located at the middle of the connecting disc 41, the connecting shaft 43 passes through the bottom of the outer sleeve 2, and the connecting shaft 43 is sealed to the outer sleeve 2; the drive motor 42 is connected to the bottom of the outer sleeve 2, and the output shaft of the drive motor 42 is connected to the connecting shaft 43 through a coupling to drive the screen cylinder 3 to rotate.
[0047] It should be noted that the bottom of the outer sleeve 2 has a mounting bracket 44, and the drive motor 42 is mounted on the mounting bracket 44. The mounting bracket 44 and the outer sleeve 2 are connected by bolts. Specifically, the bottom of the outer sleeve 2 has a threaded hole, and the mounting bracket 44 has a through hole that is aligned with the threaded hole on the outer sleeve 2. After the drive motor 42 is mounted on the mounting bracket 44, the output shaft of the drive motor 42 is connected to the connecting shaft 43 through a coupling, and then the mounting bracket 44 is fixed to the outer sleeve 2 by bolts.
[0048] In some embodiments, as shown in Figures 1 to 7, the connecting shaft 43 has a positioning threaded hole located on the outside of the outer sleeve 2. The connecting shaft 43 has a positioning bolt 45 at the position of the positioning threaded hole, and the positioning bolt 45 can contact the bottom of the outer sleeve 2. There is a gap between the bottom of the sieve cylinder 3 and the bottom wall of the outer sleeve 2. The outer sleeve 2 has a sieve plate 6 at the bottom of the sieve cylinder 3. The sieve cylinder 3 has a conical structure with the large end facing outward. The sieve plate 6 has a conical hole that is inserted into and fitted with the small end of the sieve cylinder 3.
[0049] It should be noted that after the screen cylinder 3 is placed into the outer sleeve 2, the small end of the screen cylinder 3 is inserted into the screen plate 6. Since the screen cylinder 3 is conical and the screen plate 6 has a conical hole, the screen cylinder 3 cannot continue to move into the outer sleeve 2 after it is placed in place. At this time, the screen plate 6 acts as a limit for the screen cylinder 3, and the positioning threaded hole is located on the outside of the outer sleeve 2. The positioning bolt 45, in cooperation with the positioning threaded hole, can axially limit the connecting shaft 43 and prevent the limiting shaft from sliding in the direction of the large end of the outer sleeve 2. The cooperation between the positioning bolt 45 and the screen plate 6 can axially limit the screen cylinder 3. The screen cylinder 3 can be rotated by the drive motor 42 to screen the material inside the screen cylinder 3.
[0050] For example, the sieve holes on the sieve plate 6 and the sieve cylinder 3 are not shown in the figure, and the bottom of the sieve cylinder 3 is not provided with sieve holes; a plug-in cylinder 31 is fixedly provided at the large end of the sieve cylinder 3. The plug-in cylinder 31 has a cylindrical structure and is plugged into the annular cover 7; by providing the plug-in cylinder 31 at the large end of the sieve cylinder 3, it is convenient to disassemble and assemble the annular cover 7 and the plug-in cylinder 31.
[0051] In some embodiments, as shown in Figures 1 to 7, the drain outlet at the bottom of the outer sleeve 2 is connected to a sewage treatment device via a hose. The sewage treatment device can be a three-stage sedimentation tank. The clear liquid after treatment in the three-stage sedimentation tank can be used as flushing water to rinse the wet concrete inside the screen cylinder 3.
[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A wet concrete aggregate separation and treatment device, characterized in that, The device includes a support frame, an outer sleeve, a screen cylinder, a rotary drive mechanism, and a pitching and swinging mechanism. The outer sleeve is mounted on the support frame and has a horizontally mounted rotating shaft. The outer sleeve is rotatably connected to the support frame via the rotating shaft. The bottom of the outer sleeve has a drain outlet with a valve. The screen cylinder is disposed inside the outer sleeve, and the rotary drive mechanism is connected to the bottom of the outer sleeve. The rotating end of the rotary drive mechanism passes through the outer sleeve and is connected to the bottom of the screen cylinder, allowing the screen cylinder to rotate within the outer sleeve. The pitching and swinging mechanism is mounted on the support frame, and its drive end is connected to the rotating shaft, allowing the outer sleeve to swing up and down. When the opening of the outer sleeve faces upward, the screen cylinder rotates under the drive of the rotary drive mechanism to screen materials. When the opening of the outer sleeve faces downward, it is in the discharge state.
2. The wet concrete sand and gravel waste separation and treatment device as described in claim 1, characterized in that, There is a gap between the bottom of the screen cylinder and the bottom wall of the outer sleeve. Inside the outer sleeve, at the bottom of the screen cylinder, there is a screen plate. The screen hole diameter of the screen plate is smaller than the particle size of the sand, so as to separate sand and water. The screen plate and the screen cylinder divide the outer sleeve into three parts: the inside of the screen cylinder is the feeding and sand-gravel separation part; the space between the screen cylinder and the outer sleeve is the sand and water holding part; and the space between the screen plate and the bottom of the outer sleeve is the drainage part.
3. The wet concrete sand and gravel waste separation and treatment device as described in claim 2, characterized in that, The outer sleeve has an annular cover at its open end, which is detachably connected to the outer sleeve and is inserted into the open end of the screen cylinder. The annular cover can limit the circumferential movement of the outer sleeve. When the outer sleeve swings to the discharge state, the stones in the screen cylinder can fall downwards, and the annular cover can block the sand. After the stones are discharged, the annular cover separates from the outer sleeve, and the sand can fall downwards.
4. The wet concrete sand and gravel waste separation and treatment device as described in claim 3, characterized in that, A water spray pipe can be installed on the annular cover, with one end of the water spray pipe facing the screen cylinder and the other end of the water spray pipe connected to a water source via a flexible hose.
5. The wet concrete sand and gravel waste separation and treatment device as described in claim 1, characterized in that, The pitch and oscillation mechanism includes: a worm gear connected to the rotating shaft, the worm gear being fixed relative to the rotating shaft; a worm rotatably mounted on the support frame, the worm being fixed relative to the support frame; a servo motor connected to the support frame; and the output shaft of the servo motor being connected to the worm.
6. The wet concrete sand and gravel waste separation and treatment device as described in claim 1, characterized in that, The rotary drive mechanism includes: a connecting disc, which is bolted to the bottom of the screen cylinder; a connecting shaft located at the center of the connecting disc, the connecting shaft passing through the bottom of the outer sleeve and being sealed to the outer sleeve; and a drive motor connected to the bottom of the outer sleeve, the output shaft of the drive motor being connected to the connecting shaft via a coupling to drive the screen cylinder to rotate.
7. The wet concrete sand and gravel waste separation and treatment device as described in claim 6, characterized in that, The bottom of the outer sleeve has a mounting bracket, and the drive motor is mounted on the mounting bracket.
8. The wet concrete sand and gravel waste separation and treatment device as described in claim 6, characterized in that, The connecting shaft has a positioning threaded hole located on the outside of the outer sleeve. A positioning bolt is located on the connecting shaft at the position of the positioning threaded hole, and the positioning bolt can contact the bottom of the outer sleeve. There is a gap between the bottom of the screen cylinder and the bottom wall of the outer sleeve. A screen plate is located inside the outer sleeve at the bottom of the screen cylinder. The screen cylinder has a conical structure with the large end facing outward. The screen plate has a conical hole that fits into the small end of the screen cylinder.
9. The wet concrete sand and gravel waste separation and treatment device as described in claim 1, characterized in that, During the screening process, the outer sleeve is set at an angle with its opening facing upwards.
10. The wet concrete sand and gravel waste separation and treatment device as described in claim 1, characterized in that, The drain outlet at the bottom of the outer sleeve is connected to the sewage treatment equipment via a hose.