Impurity removal device for high-strength durable recycled concrete

Abstract

The utility model relates to the technical field of concrete production, and discloses a high-strength durable recycled concrete impurity removal device which comprises an impurity removal box. According to the impurity removal device for the high-strength durable recycled concrete, a first servo motor is started to drive one of the first rotating shafts to rotate under the action of a connecting rod, a fixing plate, a scraping plate, a connecting plate, the first rotating shafts, a magnetic separation roller, a first gear and a waste collecting box; two first rotating shafts and a magnetic separation roller can be driven to synchronously rotate towards the middle under the cooperation of two first gears, so that iron impurities in concrete are filtered, then a connecting rod is driven to always move towards the magnetic separation roller under the pushing of a connecting plate, and at the moment, a fixing plate and a scraping plate are driven to move while the connecting rod moves; and at the moment, the scraping plate can scrape the surface of the rotating magnetic separation roller and can continuously clean the surface of the magnetic separation roller, the adsorption capacity of the magnetic separation roller is prevented from being reduced, and therefore the overall quality of the recycled concrete is improved.

Description

Technical Field

[0001] This application relates to the field of concrete production technology, specifically to a device for removing impurities from high-strength, durable recycled concrete. Background Technology

[0002] The main raw materials of high-strength recycled concrete include construction waste, steel slag, slag and other waste materials. After recycling, crushing, washing and grading, these waste materials can be used as recycled aggregates. At the same time, in order to improve the strength and durability of concrete, traditional concrete raw materials such as cement, fly ash, mineral powder, sand and gravel need to be added.

[0003] An existing patent (publication number: CN217568929U) discloses a device for removing impurities from high-strength, durable recycled concrete. The impurity removal box has a cleaning chamber on one side, and an air separation mechanism on the other side of the cleaning chamber. Cleaning nozzles are symmetrically arranged at the top of the cleaning chamber.

[0004] The above solution integrates air separation, washing, crushing, magnetic separation and screening, which greatly reduces the time consumption of traditional step-by-step processing. In the above solution, during magnetic separation and screening, iron impurities in recycled concrete can be effectively adsorbed and removed. However, the magnetic separation blocks in the above solution do not have cleaning components, which leads to the accumulation of too many impurities or residues in the magnetic separation blocks. Their adsorption capacity may gradually weaken, resulting in a decrease in magnetic separation efficiency. Consequently, some iron impurities cannot be effectively removed, thus affecting the overall quality of recycled concrete. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a device for removing impurities from high-strength, durable recycled concrete, which has advantages such as automatically cleaning the magnetic separation and screening section, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a device for removing impurities from high-strength durable recycled concrete, comprising an impurity removal box, a collection hopper fixedly connected to the inner wall of the impurity removal box, a discharge frame fixedly connected to the bottom surface of the collection hopper, two sets of symmetrical cleaning mechanisms provided on the outer surface of the discharge frame, two first rotating shafts rotatably connected to the inner wall of the discharge frame, magnetic separation rollers fixedly connected to the outer surface of each of the two first rotating shafts, and one end of each of the two first rotating shafts extending through the inner wall of the discharge frame to the outside of the discharge frame. A first servo motor is fixedly embedded in the first servo motor, and the output end of the first servo motor is fixedly connected to one end of the first rotating shaft. Two waste collection boxes are inserted into the inner wall of the impurity removal box. The cleaning mechanism includes two connecting rods inserted into the inner wall of the feeding frame. One end of the two connecting rods is fixedly connected to a fixing plate. A scraper is fixedly connected to the outer surface of the fixing plate. The other end of the two connecting rods is fixedly connected to a connecting plate. A tension spring is sleeved on the outer surface of each of the two connecting rods, and the two ends of the tension spring are respectively fixedly connected to the outer surface of the connecting plate and the outer surface of the feeding frame.

[0007] Through the above scheme, by setting up the interaction between the connecting rod, fixed plate, scraper, connecting plate, first rotating shaft, magnetic separation roller, first gear, and waste collection box, the first servo motor is started to drive one of the first rotating shafts to rotate. With the cooperation of the two first gears, the two first rotating shafts and the magnetic separation roller can be driven to rotate synchronously towards the center, thereby filtering iron impurities in the concrete. Then, under the push of the connecting plate, the connecting rod is driven to move towards the magnetic separation roller. At this time, the fixed plate and scraper move simultaneously with the movement of the connecting rod. The scraper can scrape the surface of the rotating magnetic separation roller and continuously clean the surface of the magnetic separation roller to avoid reducing the adsorption capacity of the magnetic separation roller, thereby improving the overall quality of the recycled concrete. Afterwards, the cleaned impurities fall into the inside of the waste collection box for easy collection and cleaning by the staff.

[0008] Furthermore, a first gear is fixedly connected to the outer surface of each of the two first shafts, and the two first gears mesh with each other.

[0009] The above scheme, by setting the first gear, can drive the two magnetic separation rollers to move synchronously towards the center under the action of the two first gears, thereby efficiently performing magnetic separation treatment on the fallen recycled concrete.

[0010] Furthermore, an air classifier is fixedly connected to the upper surface of the impurity removal box, an inlet is installed on the outer surface of the air classifier, a fan is installed on the inner wall of the air classifier, and a mesh bag is installed on the outer surface of the air classifier.

[0011] The above scheme, by setting up a fan and a net, enables wind-powered screening of recycled concrete entering the air separator, thereby removing lightweight impurities such as leaves from the concrete into the net and improving the screening quality.

[0012] Furthermore, a pneumatic telescopic rod is fixedly connected to the upper surface of the impurity removal box, and a baffle plate is fixedly connected to the output end of the pneumatic telescopic rod. The outer surface of the baffle plate is inserted into the inner wall of the air separator box.

[0013] The above solution, through the use of pneumatic telescopic rods and baffles, can isolate the connection between the air separator and the impurity removal box, ensuring that the air separation inside the air separator can form a stable airflow path and that the air is sprayed out from the net bag.

[0014] Furthermore, the inner wall of the impurity removal box is fixedly connected to two symmetrical guide plates, and the inner wall of the impurity removal box is fixedly connected to a filter plate.

[0015] The above scheme, by setting up a guide plate, can guide the recycled concrete entering the impurity removal box, ensuring that it enters the two crushing rollers stably for crushing.

[0016] Furthermore, the inner wall of the impurity removal box is rotatably connected to two second rotating shafts, and one end of the second rotating shaft extends through the inner wall of the impurity removal box to the outside of the impurity removal box. Crushing rollers are fixedly connected to the outer surfaces of the two second rotating shafts.

[0017] The above scheme, by setting up crushing rollers, can efficiently crush materials falling between the two crushing rollers, thereby improving the production efficiency of recycled concrete.

[0018] Furthermore, a second gear is fixedly connected to the outer surface of each of the two second rotating shafts, and the two second gears mesh with each other. A second servo motor is provided outside the impurity removal box, and the output end of the second servo motor is fixedly connected to one end of the second rotating shaft.

[0019] The above scheme uses a second gear to activate a second servo motor that drives the second shaft to rotate. With the cooperation of the two second gears, the two crushing rollers can rotate inward synchronously, thus efficiently crushing the material.

[0020] Furthermore, a collection drawer is installed on the inner wall of the impurity removal box, and a discharge port is opened on the outer surface of the impurity removal box.

[0021] The above solution allows unscreened materials to be discharged from the impurity removal box to the outside by setting up a discharge port, and then the screened materials can be collected by setting up a collection drawer, making it convenient for staff to handle them centrally.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This high-strength, durable recycled concrete impurity removal device utilizes the interaction of a connecting rod, a fixed plate, a scraper, a first rotating shaft, a magnetic separation roller, a first gear, and a waste collection box. A first servo motor drives one of the first rotating shafts to rotate. With the cooperation of two first gears, both first rotating shafts and the magnetic separation roller rotate synchronously towards the center, filtering out iron impurities in the concrete. Then, the connecting plate pushes the connecting rod to continuously move towards the magnetic separation roller. Simultaneously, the fixed plate and scraper move, allowing the scraper to scrape the surface of the rotating magnetic separation roller and continuously clean it, preventing a reduction in the roller's adsorption capacity and improving the overall quality of the recycled concrete. The cleaned impurities fall into the waste collection box for easy collection and disposal by workers. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0026] Figure 3 This is a three-dimensional structural diagram of the material feeding frame in this application;

[0027] Figure 4 This is a three-dimensional structural diagram of the cleanup organization for this application.

[0028] In the picture:

[0029] 1. Impurity removal box; 2. Collection hopper; 3. Discharge frame; 4. Cleaning mechanism; 401. Connecting rod; 402. Fixing plate; 403. Scraper; 404. Connecting plate; 405. Tension spring; 5. First rotating shaft; 6. Magnetic separator roller; 7. First servo motor; 8. First gear; 9. Waste collection box; 10. Air separator box; 11. Fan; 12. Net bag; 13. Pneumatic telescopic rod; 14. Baffle plate; 15. Guide plate; 16. Filter plate; 17. Second rotating shaft; 18. Crushing roller; 19. Second gear; 20. Second servo motor; 21. Collection drawer; 22. Discharge port. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 2 , Figure 3 and Figure 4 This embodiment of a high-strength durable recycled concrete impurity removal device includes an impurity removal box 1. A collection hopper 2 is fixedly connected to the inner wall of the impurity removal box 1. A discharge frame 3 is fixedly connected to the bottom surface of the collection hopper 2. Two sets of symmetrical cleaning mechanisms 4 are provided on the outer surface of the discharge frame 3. Two first rotating shafts 5 are rotatably connected to the inner wall of the discharge frame 3. Magnetic separation rollers 6 are fixedly connected to the outer surface of each of the two first rotating shafts 5. One end of each of the two first rotating shafts 5 extends through the inner wall of the discharge frame 3 to the outside of the discharge frame 3. The outer surface of the discharge frame 3 is fixedly connected to... A first servo motor 7 is fixedly embedded in the first servo motor 7, and the output end of the first servo motor 7 is fixedly connected to one end of the first rotating shaft 5. Two waste collection boxes 9 are inserted into the inner wall of the impurity removal box 1. The cleaning mechanism 4 includes two connecting rods 401 inserted into the inner wall of the feeding frame 3. One end of the two connecting rods 401 is fixedly connected to a fixing plate 402. A scraper 403 is fixedly connected to the outer surface of the fixing plate 402. The other end of the two connecting rods 401 is fixedly connected to a connecting plate 404. A tension spring 40 is sleeved on the outer surface of each of the two connecting rods 401. 5. The two ends of the tension spring 405 are fixedly connected to the outer surface of the connecting plate 404 and the outer surface of the feeding frame 3, respectively. Through the interaction of the connecting rod 401, the fixing plate 402, the scraper 403, the connecting plate 404, the first rotating shaft 5, the magnetic separation roller 6, the first gear 8, and the waste collection box 9, the first servo motor 7 is started to drive one of the first rotating shafts 5 to rotate. With the cooperation of the two first gears 8, the two first rotating shafts 5 and the magnetic separation roller 6 can be driven to rotate synchronously towards the center, thereby filtering iron impurities in the concrete. Then, under the push of the connecting plate 404, the connecting rod 401 is driven to move towards the magnetic separation roller 6. At this time, while the connecting rod 401 moves, the fixing plate 402 and the scraper 403 move. At this time, the scraper 403 can scrape the surface of the rotating magnetic separation roller 6 and continuously clean the surface of the magnetic separation roller 6 to avoid reducing the adsorption capacity of the magnetic separation roller 6, thereby improving the overall quality of the recycled concrete. Afterwards, the cleaned impurities fall into the interior of the waste collection box 9, which is convenient for workers to clean.

[0032] Please see Figure 1 , Figure 2 and Figure 3Two first rotating shafts 5 are each fixedly connected to a first gear 8 on their outer surface. The two first gears 8 mesh with each other. By setting the first gears 8, the two magnetic separation rollers 6 can be driven to move synchronously towards the center, thereby efficiently performing magnetic separation treatment on the fallen recycled concrete. An air classifier box 10 is fixedly connected to the upper surface of the impurity removal box 1. The outer surface of the air classifier box 10 is equipped with a feed inlet. A fan 11 is installed on the inner wall of the air classifier box 10. A mesh bag 12 is installed on the outer surface of the air classifier box 10. By setting the fan 11 and the mesh bag 12, the impurities entering the air classifier box 10 can be separated. Recycled concrete is subjected to wind screening, which allows lightweight impurities such as leaves in the concrete to enter the interior of the mesh bag 12, thereby improving the screening quality. A pneumatic telescopic rod 13 is fixedly connected to the upper surface of the impurity removal box 1, and a baffle plate 14 is fixedly connected to the output end of the pneumatic telescopic rod 13. The outer surface of the baffle plate 14 is inserted into the inner wall of the wind classifier box 10. By setting up the pneumatic telescopic rod 13 and the baffle plate 14, the connection between the wind classifier box 10 and the impurity removal box 1 can be isolated, ensuring that the wind screening inside the wind classifier box 10 can form a stable wind flow path, and ensuring that the wind is sprayed out from the mesh bag 12.

[0033] Please see Figure 1 and Figure 2 The inner wall of the impurity removal box 1 is fixedly connected to two symmetrical guide plates 15, and a filter plate 16 is also fixedly connected to the inner wall of the impurity removal box 1. The guide plates 15 guide the recycled concrete entering the impurity removal box 1, ensuring stable entry between the two crushing rollers 18 for crushing. The inner wall of the impurity removal box 1 is rotatably connected to two second rotating shafts 17, one end of which extends through the inner wall of the impurity removal box 1 to the outside. Crushing rollers 18 are fixedly connected to the outer surfaces of both second rotating shafts 17. The crushing rollers 18 efficiently crush the material falling between the two crushing rollers 18, thereby improving the production efficiency of recycled concrete. Second teeth are fixedly connected to the outer surfaces of both second rotating shafts 17. The impurity removal box 1 has a wheel 19 and two second gears 19 meshing with each other. A second servo motor 20 is provided on the outside of the impurity removal box 1. The output end of the second servo motor 20 is fixedly connected to one end of the second rotating shaft 17. By setting the second gear 19, the second servo motor 20 is started to drive the second rotating shaft 17 to rotate. At this time, with the cooperation of the two second gears 19, the two crushing rollers 18 can be driven to rotate inward synchronously, thereby efficiently crushing the material. A collection tray 21 is installed on the inner wall of the impurity removal box 1. A discharge port 22 is opened on the outer surface of the impurity removal box 1. By setting the discharge port 22, the unscreened material can be discharged from the impurity removal box 1 to the outside. Then, by setting the collection tray 21, the screened material can be collected, which is convenient for the staff to handle centrally.

[0034] This embodiment describes a high-strength, durable recycled concrete impurity removal device. Through the interaction of a connecting rod 401, a fixing plate 402, a scraper 403, a connecting plate 404, a first rotating shaft 5, a magnetic separation roller 6, a first gear 8, and a waste collection box 9, the device activates a first servo motor 7 to drive one of the first rotating shafts 5 to rotate. With the cooperation of the two first gears 8, both first rotating shafts 5 and the magnetic separation roller 6 rotate synchronously towards the center, thereby filtering iron impurities in the concrete. Then, driven by the connecting plate 404, the connecting rod 401 continuously moves towards the magnetic separation roller 6. Simultaneously, the connecting rod 401 moves, causing the fixing plate 402 and the scraper 403 to move. The scraper 403 scrapes the surface of the rotating magnetic separation roller 6 and continuously cleans it, preventing a reduction in its adsorption capacity and improving the overall quality of the recycled concrete. The cleaned impurities fall into the waste collection box 9 for easy collection by workers.

[0035] The working principle of the above embodiment is as follows: When using this device, the material is first conveyed into the air classifier 10 from the feed port on the side of the air classifier 10. Then, the pneumatic telescopic rod 13 is activated to drive the baffle plate 14 to isolate the connection between the air classifier 10 and the impurity removal box 1, ensuring that the air screening inside the air classifier 10 can form a stable airflow path and that the air is sprayed out from the net bag 12. At this time, the fan 11 is activated to perform air screening on the recycled concrete entering the air classifier 10, thereby sending other light impurities such as leaves in the concrete into the net bag 12. Then, the pneumatic telescopic rod 13 is activated to pull out the baffle plate 14, so that the screened material enters the impurity removal box 1. At this time, the recycled concrete entering the impurity removal box 1 is guided by the guide plate 15. Then, the second servo motor 20 is activated to drive the second rotating shaft 17 to rotate. At this time, with the cooperation of the two second gears 19, the two crushing rollers 18 can be driven to rotate inward synchronously, thereby efficiently crushing the material. The material, after being crushed, is guided by the hopper 2 and falls stably onto the surface of the magnetic separator roller 6. At this time, the first servo motor 7 is started to drive one of the first rotating shafts 5 to rotate. With the cooperation of the two first gears 8, the two first rotating shafts 5 and the magnetic separator roller 6 can rotate synchronously towards the center, thereby filtering iron impurities in the concrete. Finally, the connecting plate 404 pushes the connecting rod 401 to move towards the magnetic separator roller 6. At this time, the connecting rod 401 moves while driving the fixed plate 402 and the scraper 403. The scraper 403 can scrape the surface of the rotating magnetic separator roller 6 and continuously clean the surface of the magnetic separator roller 6. The cleaned impurities fall into the waste collection box 9 for easy collection and cleaning by the staff. The material after magnetic separation falls onto the filter plate 16 for filtration. The material that has not been screened is discharged from the discharge port 22 to the outside through the inclined arrangement of the filter plate 16. The screened material falls into the collection drawer 21.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for removing impurities from high-strength durable recycled concrete, comprising an impurity removal box (1), characterized in that: The inner wall of the impurity removal box (1) is fixedly connected to a collection hopper (2), and the bottom surface of the collection hopper (2) is fixedly connected to a feeding frame (3). The outer surface of the feeding frame (3) is provided with two sets of symmetrical cleaning mechanisms (4). The inner wall of the feeding frame (3) is rotatably connected to two first rotating shafts (5). The outer surfaces of the two first rotating shafts (5) are fixedly connected to magnetic separation rollers (6). One end of each of the two first rotating shafts (5) extends through the inner wall of the feeding frame (3) to the outside of the feeding frame (3). The outer surface of the feeding frame (3) is fixedly inlaid with a first servo motor (7). The output end of the first servo motor (7) is fixedly connected to the first rotating shaft (5). At one end of the cleaning box (1), two waste collection boxes (9) are inserted into the inner wall of the cleaning box (1). The cleaning mechanism (4) includes two connecting rods (401) inserted into the inner wall of the feeding frame (3). One end of the two connecting rods (401) is fixedly connected to a fixing plate (402). The outer surface of the fixing plate (402) is fixedly connected to a scraper (403). The other end of the two connecting rods (401) is fixedly connected to a connecting plate (404). The outer surface of the two connecting rods (401) is sleeved with a tension spring (405), and the two ends of the tension spring (405) are respectively fixedly connected to the outer surface of the connecting plate (404) and the outer surface of the feeding frame (3).

2. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The outer surfaces of the two first shafts (5) are fixedly connected with first gears (8), and the two first gears (8) mesh with each other.

3. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The upper surface of the impurity removal box (1) is fixedly connected to an air classifier box (10), the outer surface of the air classifier box (10) is equipped with a feed inlet, the inner wall of the air classifier box (10) is equipped with a fan (11), and the outer surface of the air classifier box (10) is equipped with a net bag (12).

4. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The upper surface of the impurity removal box (1) is fixedly connected to a pneumatic telescopic rod (13), and the output end of the pneumatic telescopic rod (13) is fixedly connected to a baffle plate (14). The outer surface of the baffle plate (14) is inserted into the inner wall of the air separator (10).

5. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The inner wall of the impurity removal box (1) is fixedly connected with two symmetrical guide plates (15), and the inner wall of the impurity removal box (1) is fixedly connected with a filter plate (16).

6. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The inner wall of the impurity removal box (1) is rotatably connected to two second rotating shafts (17), and one end of the second rotating shaft (17) extends through the inner wall of the impurity removal box (1) to the outside of the impurity removal box (1). Crushing rollers (18) are fixedly connected to the outer surfaces of the two second rotating shafts (17).

7. The impurity removal device for high-strength durable recycled concrete according to claim 6, characterized in that: The outer surfaces of the two second rotating shafts (17) are fixedly connected with second gears (19), and the two second gears (19) mesh with each other. The outside of the impurity removal box (1) is provided with a second servo motor (20), and the output end of the second servo motor (20) is fixedly connected to one end of the second rotating shaft (17).

8. The impurity removal device for high-strength durable recycled concrete according to claim 1, characterized in that: The inner wall of the impurity removal box (1) is equipped with a collection drawer (21), and the outer surface of the impurity removal box (1) is provided with a discharge port (22).

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