Municipal waste multi-stage screening equipment

Abstract

The utility model discloses urban garbage multi-stage screening equipment which comprises a screening box, one end of the screening box is fixedly connected with a feeding pipe, a detachable filter screen is inserted into the feeding pipe, two rotating shafts are rotatably inserted between the inner walls of the two sides of the screening box, and a conveying belt is in transmission connection between the two rotating shafts. A plurality of mounting grooves are formed in the outer surface of the conveying belt, magnets are clamped in the mounting grooves, a supporting plate is fixedly connected between the inner walls of the two sides of the screening box, a scraping plate is fixedly connected to the top of the supporting plate, the top end of the scraping plate makes contact with the outer surface of the conveying belt, and a baffle is fixedly connected between the inner walls of the two sides of the screening box; a brush is fixedly connected to the bottom of the baffle and located above the conveying belt. The magnetic metal garbage is adsorbed on the outer surface of the conveying belt by the magnets, and other garbage is conveyed away under the conveying action of the conveying belt, so that automatic screening of the magnetic metal garbage and other garbage is realized, and convenience and rapidness are realized.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, and in particular to a multi-stage sorting and screening device for urban waste. Background Technology

[0002] During urban development, a lot of urban waste, such as construction waste, is generated. This waste can easily affect the appearance of the city. Construction waste usually contains a lot of plastic waste and magnetic metal waste. The magnetic metal waste can be recycled. After the waste is packaged from various places and transported to the processing station for processing, the outer packaging is crushed and then the next step is screening.

[0003] Currently, the sorting of existing magnetic metal waste and other waste usually relies on manual labor, which is not only labor-intensive and inefficient, but also prone to leaving residues during the sorting process, resulting in low resource utilization. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of high manpower consumption and low work efficiency in existing systems, and to propose a multi-stage screening device for urban waste.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-stage screening device for urban waste includes a screening box. A feed pipe is fixedly connected to one end of the screening box, and a removable filter screen is inserted into the feed pipe. Two rotating shafts are rotatably inserted between the inner walls of both sides of the screening box. A conveyor belt is driven between the two rotating shafts. The outer surface of the conveyor belt is provided with multiple mounting grooves, and magnets are snapped into the mounting grooves. A support plate is fixedly connected between the inner walls of both sides of the screening box, and a scraper is fixedly connected to the top of the support plate. The top of the scraper contacts the outer surface of the conveyor belt.

[0007] Furthermore, a baffle is fixedly connected between the inner walls of both sides of the screening box, and a brush is fixedly connected to the bottom of the baffle, with the brush located above the conveyor belt.

[0008] Furthermore, two mounting plates are fixedly connected to the top of the scraper, and a roller is rotatably inserted between the two mounting plates, with the roller located below the conveyor belt.

[0009] Furthermore, a first collection box and a second collection box are placed on the bottom inner wall of the screening box. The first collection box is located below the conveyor belt, and the second collection box is located below one end of the conveyor belt.

[0010] Furthermore, one end of the screening box is fixedly connected to two mounting brackets, and a water inlet pipe is inserted between the two mounting brackets. Multiple spray heads are inserted into the bottom of the water inlet pipe.

[0011] Furthermore, an observation window is embedded on one side of the screening box, and a control panel is also fixedly connected to the outer wall of this side of the screening box.

[0012] Furthermore, the bottom outer wall of the screening box is fixedly connected with multiple support legs, and the bottom end of the support legs is fitted with an anti-slip sleeve.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Primary filtration and screening are completed through a detachable filter screen. Secondary filtration and screening are completed by magnetic metal waste being attracted to the outer surface of the conveyor belt by magnets. Other waste is then transported away by the conveyor belt, thus realizing the automatic screening of magnetic metal waste from other waste, which is convenient and fast.

[0015] 2. The setup of brushes and urban waste brushes allows urban waste to be spread flat on the conveyor belt, making it easier to screen magnetic metal waste.

[0016] 3. Water is drawn into the inlet pipe by a water pump and then sprayed onto the garbage from the spray head, thereby removing dust from the garbage and preventing dust generation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a multi-stage screening device for urban waste proposed in this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of a multi-stage screening device for urban waste proposed in this utility model;

[0019] Figure 3 This is a partial exploded structural diagram of a multi-stage screening device for urban waste proposed in this utility model;

[0020] Figure 4 This is a partially enlarged structural diagram of a multi-stage screening device for urban waste proposed in this utility model.

[0021] In the diagram: 1. Screening box; 2. Support leg; 3. Observation window; 4. Mounting frame; 5. Water inlet pipe; 6. Spray head; 7. Feed pipe; 8. Control panel; 9. First collection box; 901. Second collection box; 10. Conveyor belt; 11. Baffle; 12. Brush; 13. Mounting groove; 14. Magnet; 15. Support plate; 16. Scraper; 17. Mounting plate; 18. Roller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A multi-stage screening device for urban waste includes a screening box 1. One end of the screening box 1 is fixed with a feed pipe 7 by bolts. A detachable filter screen is inserted into the feed pipe 7. Primary filtration and screening are completed through the detachable filter screen to separate large-volume impurities that are not completely crushed, and it is also convenient to clean the filter screen.

[0024] Two rotating shafts are rotatably inserted between the inner walls of both sides of the screening box 1. A conveyor belt 10 is connected between the two rotating shafts. A motor is fixed to one outer wall of the screening box 1 by bolts. The output end of the motor is fixedly connected to one end of one of the rotating shafts. The rotating shaft rotates under the drive of the motor, thereby driving the conveyor belt 10 to rotate, and thus transporting the municipal waste.

[0025] The outer surface of the conveyor belt 10 is provided with multiple mounting slots 13, and magnets 14 are snapped into the mounting slots 13. The magnets 14 are evenly distributed in small pieces for easy operation. Magnetic metal waste is attracted to the outer surface of the conveyor belt 10 by the magnets 14, completing the secondary filtration and screening.

[0026] A support plate 15 is fixed between the inner walls of both sides of the screening box 1 by bolts. A scraper 16 is fixed to the top of the support plate 15 by bolts. The top of the scraper 16 contacts the outer surface of the conveyor belt 10. The conveyor belt 10 and the scraper 16 scrape each other, thereby scraping off the magnetic metal waste adsorbed on the conveyor belt 10.

[0027] A baffle 11 is bolted between the inner walls of both sides of the screening box 1. A brush 12 is bolted to the bottom of the baffle 11. The brush 12 is located above the conveyor belt 10. The brush 12 brushes against the municipal waste, so that the municipal waste is spread flat on the conveyor belt 10. Two mounting plates 17 are welded to the top of the scraper 16. A roller 18 is rotatably inserted between the two mounting plates 17. The roller 18 is located below the conveyor belt 10, so as to support the conveyor belt 10.

[0028] The bottom inner wall of the screening box 1 is equipped with a first collection box 9 and a second collection box 901. The first collection box 9 is located below the conveyor belt 10, and magnetic metal waste falls into the first collection box 9 for collection. The second collection box 901 is located below one end of the conveyor belt 10, and other waste falls into the second collection box 901 for collection under the conveying action of the conveyor belt 10.

[0029] Two mounting brackets 4 are fixed to one end of the screening box 1 by bolts. A water inlet pipe 5 is inserted between the two mounting brackets 4. Multiple spray heads 6 are inserted into the bottom of the water inlet pipe 5. One end of the water inlet pipe 5 is connected to the water inlet of the water pump. Under the action of the water pump, water is drawn into the water inlet pipe 5 and then sprayed onto the garbage from the spray heads 6, thereby removing dust from the garbage and completing the three-stage filtration and screening.

[0030] An observation window 3 is embedded on one side of the screening box 1. A control panel 8 is also fixed to the outer wall of this side of the screening box 1 by bolts. The control panel 8 is electrically connected to the motor. Multiple support legs 2 are fixed to the bottom outer wall of the screening box 1 by bolts to support the screening box 1. Anti-slip sleeves are fitted to the bottom ends of the support legs 2.

[0031] The working principle of this embodiment is as follows: When in use, firstly, the crushed garbage is fed into the screening box 1 through the filter screen of the feed pipe 7 to complete the primary filtration and screening, and the garbage that is not completely crushed is screened out. Then, the municipal garbage falls onto the conveyor belt 10. Next, the motor is started and the conveyor belt 10 rotates to transport the garbage. The magnetic metal garbage is attracted to the outer surface of the conveyor belt 10 by the magnet 14 to achieve the secondary filtration and screening.

[0032] Under the conveyor belt 10, the brush 12 brushes against the garbage, thus spreading the garbage as evenly as possible on the conveyor belt 10. When the conveyor belt 10 rotates to the bottom, other non-magnetic garbage falls into the second collection box 901 under the conveying action of the conveyor belt 10, thereby realizing the screening of magnetic metal garbage and other garbage. During this process, a small amount of metal garbage that has not formed a stable adsorption with the magnet 14 may fall into the second collection box 901, so secondary sorting is required.

[0033] The conveyor belt 10 continues to move, and then scrapes against the scraper 16, thereby scraping off the magnetic metal waste adsorbed on the conveyor belt 10. Then, the magnetic metal waste falls into the first collection box 9 for collection.

[0034] Then, when the garbage is transported to the bottom of the spray head 6, the water pump draws water into the inlet pipe 5 and sprays it onto the garbage from the spray head 6 to remove dust from the garbage. After the process is completed, the metal garbage that has not yet been scraped off on the conveyor belt 10 is manually cleaned, and the metal garbage that has accidentally fallen into the second collection box 901 is sorted a second time.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage screening device for urban waste, comprising a screening box (1), characterized in that, One end of the screening box (1) is fixedly connected to a feed pipe (7), and a detachable filter screen is inserted into the feed pipe (7). Two rotating shafts are rotatably inserted between the inner walls of the two sides of the screening box (1), and a conveyor belt (10) is connected between the two rotating shafts. The outer surface of the conveyor belt (10) is provided with multiple mounting grooves (13), and a magnet (14) is snapped into the mounting groove (13). A support plate (15) is fixedly connected between the inner walls of the two sides of the screening box (1), and a scraper (16) is fixedly connected to the top of the support plate (15). The top of the scraper (16) is in contact with the outer surface of the conveyor belt (10).

2. The multi-stage screening equipment for urban waste according to claim 1, characterized in that, A baffle (11) is fixedly connected between the inner walls of the two sides of the screening box (1), and a brush (12) is fixedly connected to the bottom of the baffle (11). The brush (12) is located above the conveyor belt (10).

3. The multi-stage screening equipment for urban waste according to claim 1, characterized in that, The top of the scraper (16) is fixedly connected to two mounting plates (17), and a roller (18) is rotatably inserted between the two mounting plates (17). The roller (18) is located below the conveyor belt (10).

4. The multi-stage screening equipment for urban waste according to claim 1, characterized in that, The bottom inner wall of the screening box (1) is provided with a first collection box (9) and a second collection box (901). The first collection box (9) is located below the conveyor belt (10), and the second collection box (901) is located below one end of the conveyor belt (10).

5. The multi-stage screening equipment for urban waste according to claim 1, characterized in that, Two mounting brackets (4) are fixedly connected to one end of the screening box (1), and a water inlet pipe (5) is inserted between the two mounting brackets (4). Multiple spray heads (6) are inserted into the bottom of the water inlet pipe (5).

6. The multi-stage screening equipment for urban waste according to claim 1, characterized in that, An observation window (3) is embedded on one side of the screening box (1), and a control panel (8) is also fixedly connected to the outer wall of this side of the screening box (1).

7. A multi-stage screening device for urban waste according to claim 1, characterized in that, The bottom outer wall of the screening box (1) is fixedly connected with multiple support legs (2), and the bottom end of the support legs (2) is fitted with an anti-slip sleeve.

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