An integrated recycling device for washing, separating and recovering sand and gravel in concrete.

Abstract

This utility model discloses an integrated sand and gravel washing, separation, and recycling device for concrete, belonging to the field of concrete recycling. The integrated sand and gravel washing, separation, and recycling device includes a second filter cylinder, inside which is a second filter frame. An extension frame is provided on one side of the second filter cylinder, and a discharge pipe is provided between the second filter frame and the extension frame. This utility model solves the problem in existing sand and gravel separators where the sand and gravel remaining in the filter tank during the screening process can only be removed after the equipment stops running, resulting in weak equipment continuity and inability to operate continuously. This utility model uses the rotation of a screw rod to laterally move the filtered sand and gravel, transferring the sand and gravel from inside the second filter frame to inside the first filter frame. The sand and gravel are removed while the second filter frame continues filtering, allowing the equipment to process the filtered sand and gravel without stopping operation.

Description

Technical Field

[0001] This utility model relates to the field of concrete recycling, specifically to an integrated recycling device for washing and separating sand and gravel in concrete. Background Technology

[0002] A sand and gravel separator is a device that cleans, separates, and recycles sand and gravel from wastewater and residual concrete in washing tank trucks. With the increasing environmental protection requirements, the use of sand and gravel separators for resource recycling has become widespread. The sand and gravel separator is the core equipment of a concrete recycling system.

[0003] Chinese patent CN217663638U discloses a sand and gravel separator, including a washing tank with a stirring component for mixing sand and soil. The bottom of the washing tank has a sieve hole, and the top of the washing tank has a water inlet for connecting to a water source. A collection tank is located below the washing tank, and a filter tank is located inside the collection tank. A filter membrane is laid on the periphery of the filter tank. This application can screen agglomerated sand and soil, improving the screening efficiency of the sand and gravel separator.

[0004] In the screening process of the sand and gravel separator described in the above patent, the sand and gravel that are finally left in the filter tank can only be taken out after the equipment stops running, resulting in weak equipment continuity and inability to operate continuously. Utility Model Content

[0005] The purpose of this invention is to provide an integrated sand and gravel washing, separation and recycling device for concrete. The device uses the rotation of a screw rod to move the filtered sand and gravel laterally, transferring the sand and gravel from inside the second filter frame to inside the first filter frame. The sand and gravel are removed while the second filter frame is still filtering the sand and gravel. The device can process the filtered sand and gravel without stopping operation, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated recycling device for washing and separating sand and gravel in concrete, comprising a second filter cylinder, a second filter frame disposed inside the second filter cylinder, an extension frame disposed on one side of the second filter cylinder, a discharge pipe disposed on the second filter frame facing the extension frame, the discharge pipe penetrating the second filter cylinder and extending into the interior of the extension frame, a spiral rod disposed laterally inside the discharge pipe, and the spiral rod extending from the discharge pipe into the interior of the second filter frame, and a transmission frame disposed on one side of the discharge pipe.

[0007] Preferably, the transmission frame passes through the extension frame and is slidably connected to the extension frame at the through position, and a second hydraulic rod is provided between the transmission frame and the second filter cylinder.

[0008] Preferably, a first grid plate is provided at the lower end of the discharge pipe inside the extension frame, a second grid plate is provided at the lower end of the outside of the first grid plate, a first filter frame is provided at the lower end of the second grid plate, and a sealing plate is provided on one side of the outside of the extension frame, and the sealing plate is welded and fixed to the first filter frame.

[0009] Preferably, the sealing plate is provided with knobs at all four corners.

[0010] Preferably, the lower end of the first filter frame is provided with a connecting cavity facing the second filter cylinder, and the connecting cavity passes through the second filter cylinder and extends to both ends.

[0011] Preferably, the upper end of the second filter cylinder is provided with a first filter cylinder, and filter holes are arranged in an array between the first filter cylinder and the second filter cylinder, and each filter hole is provided with an adjusting rod.

[0012] Preferably, the adjusting rod is tapered.

[0013] Preferably, the upper end of the adjusting rod is connected by a connecting plate, the upper end of the connecting plate passes through the first filter cylinder and extends to the upper end of the first filter cylinder, and a first hydraulic rod is provided on one side of the outer wall of the first filter cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] After the material of this utility model passes through the filter plate, filter holes, and second filter frame, the water used for filtration will pass through the second filter frame and be transported by the drain pipe before returning to the first filter cylinder through the return pipe. Sand and gravel will accumulate around the lower end of the spiral rod inside the second filter frame. After a certain amount of sand and gravel is collected inside the second filter frame, the rotation of the spiral rod can laterally move the collected sand and gravel towards the sealing plate. During this movement, the push of the second hydraulic rod will cause the first and second grid plates to overlap. After the overlap, the sand and gravel transported by the rotation of the spiral rod will fall onto the first filter cylinder. Inside the filter frame, the sand and gravel filtered in the second filter frame are transferred to the first filter frame in a quantitative and timed manner. After the transfer, the retraction of the second hydraulic rod will cause the transmission frame to fit against the discharge pipe, and the first and second grid plates will also reset and alternately distribute to restrict the falling of items. At this time, holding the sealing plate can drive the first filter frame and the sand and gravel transferred inside to be taken out and dumped. The extension frame is equipped with a structure that can adjust the closed state, which facilitates the transfer of materials in the second filter frame, so that the entire equipment can operate continuously without stopping the operation of the equipment because of the need to dump the materials inside the second filter frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the second filter cartridge of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle;

[0019] Figure 4 This is a schematic diagram showing the positional relationship of the second grating plate of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of region B in the middle.

[0021] In the diagram: 1. Filter press; 2. Drain pipe; 3. Return pipe; 4. First three-way valve; 5. Second three-way valve; 6. Filter plate; 7. First filter cylinder; 8. Second filter cylinder; 9. Extension frame; 10. Sealing plate; 11. Knob; 12. First hydraulic rod; 13. Agitator; 14. Transmission frame; 15. Discharge pipe; 16. Screw rod; 17. First grid plate; 18. Second grid plate; 19. First filter frame; 20. Connecting cavity; 21. Filter hole; 22. Adjusting rod; 23. Connecting plate; 24. Second filter frame; 25. Second hydraulic rod. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment of the integrated recycling device for washing and separating sand and gravel in concrete includes a second filter cylinder 8. The second filter cylinder 8 is provided with a second filter frame 24. After the sand and gravel mixture in the concrete comes into contact with the liquid and mixes inside the upper first filter cylinder 7, it will fall into the second filter frame 24 for filtration, filtering out the liquid and causing the sand and gravel to remain in the lower part of the second filter frame 24.

[0025] Among them, such as Figure 2 As shown, an extension frame 9 is provided on one side of the second filter cylinder 8, and a discharge pipe 15 is provided on the second filter frame 24 facing the extension frame 9. The discharge pipe 15 passes through the second filter cylinder 8 and extends into the interior of the extension frame 9. The material filtered and retained inside the second filter frame 24 can be transferred to the interior of the extension frame 9 through the discharge pipe 15. A spiral rod 16 is arranged horizontally inside the discharge pipe 15, and the spiral rod 16 extends from the discharge pipe 15 into the interior of the second filter frame 24. The rotation of the spiral rod 16 can actively drive the sand and gravel material collected inside the second filter frame 24 to be transported.

[0026] In addition, such as Figure 5As shown, to prevent liquid from being discharged from the discharge pipe 15 when sand and gravel are not being transported, a first grid plate 17 is provided at the lower end of the discharge pipe 15 inside the extension frame 9, and a second grid plate 18 is provided at the lower end of the outside of the first grid plate 17. The material transported inside the discharge pipe 15 can be discharged by the overlap of the second grid plate 18 and the first grid plate 17. A transmission frame 14 is provided on one side of the discharge pipe 15, and the spiral rod 16 is embedded inside the transmission frame 14 and rotates with the inside of the transmission frame 14. When the first grid plate 17 and the second grid plate 18 overlap, liquid and sand and gravel can also be discharged through the gap between the transmission frame 14 and the discharge pipe 15.

[0027] In order to stably transmit the transmission frame 14, the transmission frame 14 passes through the upper end of the extension frame 9 and is slidably connected to the extension frame 9 at the through position. A second hydraulic rod 25 is provided between the transmission frame 14 and the second filter cylinder 8. The transmission frame 14 can be pushed by the extension and retraction of the second hydraulic rod 25. The transmission frame 14 can drive the spiral rod 16 and the second grid plate 18 to be adjusted by pushing.

[0028] A motor for outputting the screw rod 16 is provided between the transmission frame 14 and the second hydraulic rod 25. The output shaft of the motor and the screw rod 16 are connected by a synchronous belt drive inside the transmission frame 14. The synchronous belt is located inside the transmission frame 14. The output of the motor and the drive of the synchronous belt cause the screw rod 16 to rotate. This is prior art. Refer to Chinese Patent No. CN217395543U, "Insulation and Anti-condensation Device for Reagent Bottle Injection Molding Equipment", which also uses a synchronous belt and motor drive. Therefore, it is not described in detail in this application.

[0029] In order to facilitate the collection of sand and gravel discharged from the discharge pipe 15, a first filter frame 19 is provided at the lower end of the second grid plate 18, and a sealing plate 10 is provided on one side of the extension frame 9. The sealing plate 10 is welded and fixed to the first filter frame 19. The sealing plate 10 can seal the extension frame 9 by fitting it against the extension frame 9, and holding the sealing plate 10 can drive the first filter frame 19 to extend out from the extension frame 9.

[0030] The sealing plate 10 has knobs 11 at each of its four corners, and the knobs 11 are rotatably connected to the extension frame 9. By rotating the knobs 11, the knobs 11 cover the surface of the sealing plate 10, so that the sealing plate 10 is tightly attached to the extension frame 9, thereby sealing the extension frame 9 and fixing the first filter frame 19 inside the extension frame 9.

[0031] In addition, such as Figure 4As shown, in order to prevent the liquid inside the extension frame 9 from being unable to drain, the lower end of the first filter frame 19 is provided with a connecting cavity 20 facing the second filter cylinder 8, and the connecting cavity 20 penetrates the second filter cylinder 8 and extends to both ends. The liquid can be easily drained through the through connecting cavity 20, so that after the liquid passes through the first filter frame 19, it can be directly discharged from the connecting cavity 20 and flow back into the second filter cylinder 8.

[0032] like Figure 3 As shown, in order to avoid a large number of sand and gravel mixed lumps in the concrete put into the equipment, the upper end of the second filter cylinder 8 is provided with a first filter cylinder 7. Filter holes 21 are arranged in an array between the first filter cylinder 7 and the second filter cylinder 8. Each filter hole 21 is provided with an adjusting rod 22. The adjusting rod 22 is conical. The distance of the liquid flow gap in the filter hole 21 can be adjusted by longitudinally adjusting the conical adjusting rod 22 in the filter hole 21.

[0033] The upper end of the adjusting rod 22 is connected by a connecting plate 23. The upper end of the connecting plate 23 passes through the first filter cylinder 7 and extends to the upper end of the first filter cylinder 7. A first hydraulic rod 12 is provided on one side of the outer wall of the first filter cylinder 7, and the two ends of the first hydraulic rod 12 are welded and fixed to the first filter cylinder 7 and the connecting plate 23 respectively. The horizontal position of the adjusting rod 22 can be adjusted uniformly by pushing the first hydraulic rod 12.

[0034] In order to quickly break up the clumps of material inside the first filter cylinder 7, a stirring paddle 13 is longitudinally arranged in the middle of the first filter cylinder 7. The stirring paddle 13 rotates after being output, and the rotation can agitate. A filter plate 6 is arranged at the upper end of the first filter cylinder 7. The filter plate 6 can perform preliminary filtration to prevent large particles from entering the device.

[0035] In order to allow the liquid inside the equipment to be rotated and used and to avoid waste of liquid, a filter press device 1 is provided on the other side of the second filter cylinder 8. The outlet of the filter press device 1 is sealed to the first filter cylinder 7 through a return pipe 3. The lower end of the second filter cylinder 8 is sealed to the inlet of the filter press device 1 through a drain pipe 2. Wastewater can be transferred to the filter press device 1 for filtration and then transferred to the first filter cylinder 7 for recycling through the drain pipe 2.

[0036] When the filter press 1 is not needed to filter the water, a second three-way valve 5 is sealed in the middle of the return pipe 3, and a first three-way valve 4 is sealed in the middle of the drain pipe 2. The first three-way valve 4 and the second three-way valve 5 are sealed together. The direction of liquid flow can be adjusted by adjusting the first three-way valve 4 and the second three-way valve 5. When the filter press 1 is not needed to filter the water, the liquid flows directly into the second three-way valve 5 through the first three-way valve 4 and is transmitted to the return pipe 3 without flowing into the filter press 1.

[0037] Working Principle: When using the equipment to wash and separate sand and gravel in concrete, the concrete-sand mixture is fed into the filter plate 6 via a conveying structure. After preliminary filtration by the filter plate 6, the material falls into the first filter cylinder 7 and around the agitator 13. The pump corresponding to the drain pipe 2 is started to draw the liquid reserved at the lower end of the second filter cylinder 8. After being guided by the first three-way valve 4 and the second three-way valve 5, the liquid flows into the first filter cylinder 7 from the return pipe 3. The agitator 13 rotates after being driven by the motor, agitating the concrete sand and gravel to prevent clumping. Depending on the clumping condition of the concrete sand and gravel, the first liquid... The extension and retraction of the first hydraulic rod 12 adjusts the longitudinal horizontal position of the adjusting rod 22, adjusting the remaining space of the filter hole 21. After the liquid agitated by the stirring paddle 13 passes through the filter hole 21 and falls onto the second filter frame 24, the liquid will pass through the second filter frame 24 and fall into the lower end of the second filter cylinder 8, while the sand and gravel will remain inside the second filter frame 24. When it is necessary to remove the sand and gravel from the second filter frame 24, the screw rod 16 is rotated by the motor. The rotation drives the sand and gravel collected at the bottom of the second filter frame 24 to be transferred from the discharge pipe 15 to the upper end of the first filter frame 19. The push of the second hydraulic rod 25 causes the transmission frame to... 14 and the second grid plate 18 move laterally. After the second grid plate 18 and the first grid plate 17 overlap, the sand and gravel transported by the screw rod 16 will fall and remain inside the first filter frame 19. At this time, the liquid falling from the filter hole 21 will also be transported to the first filter frame 19 through the discharge pipe 15. The first filter frame 19, like the second filter frame 24, will filter the liquid, leaving the sand and gravel behind. The liquid will pass through the connecting cavity 20 and fall again into the lower end of the second filter cylinder 8. When the transmission of sand and gravel between the second filter frame 24 and the first filter frame 19 stops, the rotation of the screw rod 16 stops, and the second hydraulic rod 25... The contraction will reset the transmission frame 14 and the second grid plate 18, resetting and restricting the transmission of liquid and sand. Rotate the knob 11, hold the handle outside the sealing plate 10, pull out the first filter frame 19 from the extension frame 9, and pour out the sand and gravel trapped inside the first filter frame 19. During long-term use, the liquid at the lower end of the second filter cylinder 8 is difficult to reuse. By adjusting the first three-way valve 4 and the second three-way valve 5, the liquid in the drain pipe 2 is pumped to the inlet of the filter press 1, and the liquid at the outlet of the filter press 1 is pumped back to the first filter cylinder 7 through the return pipe 3.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An integrated sand and gravel washing, separation, and recycling device for concrete, comprising a second filter cylinder (8), wherein a second filter frame (24) is disposed inside the second filter cylinder (8), characterized in that, An extension frame (9) is provided on one side of the second filter cylinder (8). A discharge pipe (15) is provided on the second filter frame (24) facing the extension frame (9). The discharge pipe (15) passes through the second filter cylinder (8) and extends into the extension frame (9). A spiral rod (16) is provided laterally inside the discharge pipe (15), and the spiral rod (16) extends from the discharge pipe (15) into the second filter frame (24). A transmission frame (14) is provided on one side of the discharge pipe (15).

2. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 1, characterized in that, The transmission frame (14) passes through the extension frame (9) and is slidably connected to the extension frame (9) at the through position. A second hydraulic rod (25) is provided between the transmission frame (14) and the second filter cylinder (8).

3. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 2, characterized in that, The lower end of the discharge pipe (15) inside the extension frame (9) is provided with a first grid plate (17), the lower end of the outside of the first grid plate (17) is provided with a second grid plate (18), the lower end of the second grid plate (18) is provided with a first filter frame (19), a sealing plate (10) is provided on one side of the outside of the extension frame (9), and the sealing plate (10) is welded and fixed to the first filter frame (19).

4. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 3, characterized in that, The sealing plate (10) is equipped with knobs (11) at each of its four corners.

5. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 4, characterized in that, The lower end of the first filter frame (19) is provided with a connecting cavity (20) facing the second filter cylinder (8), and the connecting cavity (20) passes through the second filter cylinder (8) and extends to both ends.

6. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 5, characterized in that, The upper end of the second filter cylinder (8) is provided with a first filter cylinder (7), and filter holes (21) are arranged in an array between the first filter cylinder (7) and the second filter cylinder (8). An adjusting rod (22) is provided inside each of the filter holes (21).

7. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 6, characterized in that, The adjusting rod (22) is tapered.

8. The integrated sand and gravel washing, separation, and recycling device for concrete according to claim 7, characterized in that, The upper end of the adjusting rod (22) is connected by a connecting plate (23). The upper end of the connecting plate (23) passes through the first filter cylinder (7) and extends to the upper end of the first filter cylinder (7). A first hydraulic rod (12) is provided on one side of the outer wall of the first filter cylinder (7).

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