Processing production line for removing sundries from waste glass

Abstract

The invention discloses a processing production line for removing sundries from waste glass. Comprising a hopper, a feeding belt conveyor, a roller cleaning machine, a draining belt conveyor, a crusher, a first picking belt conveyor, a first vibration screening machine, an iron sheet removing belt conveyor, a second vibration screening machine, a vortex metal sorting machine, a second picking belt conveyor and a draining stock bin which are sequentially communicated from front to back. The method has the advantages that by combining multi-stage magnetic separation, winnowing, vibration separation and eddy current separation, impurities can be efficiently removed, the automation level of a processing line is improved, and labor input is reduced.

Description

Technical Field

[0001] This invention relates to the field of waste glass recycling technology, specifically to a waste glass impurity removal processing production line. Background Technology

[0002] Recycling waste glass is a sustainable development strategy with multiple benefits, protecting the environment, reducing energy consumption, and bringing tangible economic benefits to enterprises. In the production of daily-use glass, waste glass is a major raw material, accounting for a large proportion, and its quality directly affects product quality. Recycled waste glass undergoes washing, crushing, and sorting to remove impurities, ultimately yielding clean glass briquettes. However, in actual operation, impurity removal is not ideal. The automation level of processing lines is low, with most steps requiring manual labor, resulting in low efficiency and precision. Random inspections of processed waste glass sometimes reveal non-ferrous metal content as low as 0.03% (the standard requires ≤0.01%). The overall impurity removal rate of waste glass processing lines is only around 95%, and its removal precision cannot fully meet the standard requirements. Furthermore, 5%-7% of waste glass splashes and falls during processing, causing waste and loss. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a waste glass impurity removal processing line.

[0004] This invention comprises, from front to back, a hopper, a feeding belt conveyor, a drum washer, a drain belt conveyor, a crusher, a first sorting belt conveyor, a first vibrating screen, an iron removal belt conveyor, a second vibrating screen, a vortex metal separator, a second sorting belt conveyor, and a drain silo. A vibrating feeder is located below the discharge port of the hopper. A water washing feeder is located between the feeding belt conveyor and the drum washer. A permanent magnet is installed inside the drive roller at the discharge end of the feeding belt conveyor. A separator is located below the discharge end of the feeding belt conveyor. A water collection tank and a slag recovery pool connected to the water collection tank are located below the drum washer. The slag recovery pool is connected to the drain silo via a screw conveyor. Multiple iron removers are located above the first sorting belt conveyor and the iron removal belt conveyor. Multiple air separators are located above the first sorting belt conveyor along its output direction.

[0005] The feeding belt conveyor, the draining belt conveyor, the first sorting belt conveyor, the iron removal belt conveyor, and the second sorting belt conveyor are all equipped with receiving chutes. The receiving chutes under the draining belt conveyor are connected to the slag recovery pool.

[0006] The water washing feeding device includes a box body. One side of the box body is provided with a feed inlet that communicates with the feeding belt conveyor. The bottom of the box body is provided with a discharge outlet that communicates with the drum washing machine. The top of the box body is provided with a slag washing water pipe, and the side of the box body opposite to the feed inlet is provided with a slag flushing water pipe.

[0007] The separator includes a vertical slag discharge cylinder, and an inclined slag discharge pipe is provided on one side of the vertical slag discharge cylinder. A portion of the bottom of the inclined slag discharge pipe is an opening that communicates with the vertical slag discharge cylinder. A screen is provided at the opening of the inclined slag discharge pipe, with one end extending into the vertical slag discharge cylinder.

[0008] A screen installation port is provided on the vertical slag discharge cylinder on the side opposite to the inclined slag discharge pipe. The screen installation port is equipped with an openable door, and the screen is movably inserted into the inclined slag discharge pipe.

[0009] A pair of crushing rollers are staggered vertically inside the vertical slag discharge cylinder located above the screen. The pair of crushing rollers are connected by gear transmission. A crushing drive motor that drives the pair of crushing rollers to rotate is installed on the vertical slag discharge cylinder.

[0010] An overflow pipe is installed on one side of the slag recycling pool, and a sewage pipe is installed at the bottom of the slag recycling pool.

[0011] The air separator includes a blower and a receiving box. The blower and the receiving box are installed on both sides of the first sorting belt conveyor. The receiving box opposite the blower has openings on both the front and rear sides, and a filter screen is installed on the opening on the rear side.

[0012] The bottom of the receiving box is connected to a slag collection filter barrel, and the bottom of the slag collection filter barrel is equipped with an openable slag cleaning door.

[0013] The advantages of this invention are: by combining multi-stage magnetic separation, air separation, vibration separation and eddy current separation, it can efficiently remove impurities, improve the automation level of the processing line and reduce manual labor input. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the water washing and feeding device.

[0016] Figure 3 This is a schematic diagram of the sorter structure.

[0017] Figure 4 This is a schematic diagram of the air separator for removing impurities. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of the embodiments of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0023] As shown in the figure, the present invention includes, from front to back, a hopper 1, a feeding belt conveyor 2, a drum washer 3, a drain belt conveyor 4, a crusher 5, a first sorting belt conveyor 6, a first vibrating screen 7, an iron removal belt conveyor 8, a second vibrating screen 9, a vortex metal separator 10, a second sorting belt conveyor 11, and a drain hopper 12. A vibrating feeder 13 is provided below the discharge port of the hopper 1, and a water washing feeding device is provided between the feeding belt conveyor 2 and the drum washer 3. 14. The discharge end drive roller of the feeding belt conveyor 2 is equipped with a permanent magnet. A separator 15 is provided below the discharge end of the feeding belt conveyor 2. A water collection tank and a slag recovery pool 16 connected to the water collection tank are provided below the drum washing machine 3. The slag recovery pool 16 is connected to the drain silo 12 through a screw conveyor 17. Multiple iron removers 18 are provided above the first picking belt conveyor 6 and the iron removal belt conveyor 8. Multiple air separators 19 are provided above the first picking belt conveyor 6 along its output direction.

[0024] Waste glass shards are loaded into hopper 1 by a loader. Vibrating feeder 13 evenly distributes the glass shards from hopper 1 onto feeding belt conveyor 2, and then transports them to drum washing machine 3 for cleaning. During the conveying process on feeding belt conveyor 2, workers pick out larger debris and break up relatively intact glass bottles and those with caps to facilitate cleaning. As the glass shards fall from feeding belt conveyor 2, they first enter the water washing feeding device 14 for preliminary rinsing, separating some mud and dirt from the glass shards and improving the cleaning efficiency in drum washing machine 3. Iron bottle caps are attracted by the permanent magnets in the drive rollers at the discharge end of feeding belt conveyor 2 and fall into separator 15 when they rotate below feeding belt conveyor 2. Separator 15 is used to separate glass shards mixed with or adhering to bottle caps.

[0025] After the glass shards are cleaned by the drum washer 3, they are conveyed onto the drain belt conveyor 4. The water collection tank is located below the drum washer 3. Both ends of the drum washer 3 have conical structures. During the rotation of the drum washer 3, the glass shards are tumbled and cleaned inside. The glass shards are guided to the outlet end by the spiral guide belt inside the drum washer 3 and fall onto the drain belt conveyor 4. The sewage and impurities floating on the water surface flow from both ends of the drum washer 3 into the water collection tank and then into the shard recovery tank 16. When the glass shards containing water are conveyed by the drain belt conveyor 4, the water stains flow back into the shard recovery tank 16 through the receiving chute 20. The glass shards adhering to the belt of the drain belt conveyor 4 and the glass shards in the sewage from the drum washer 3 are also collected. The glass shards are fed into the slag recovery tank 16. During the rotation of the spiral blades of the screw conveyor 17, the water in the slag recovery tank 16 is agitated, thereby performing a secondary cleaning of the glass shards. The glass shards in the slag recovery tank 16 are then carried out and transported to the draining silo 12. The screw conveyor 17 is installed at an inclination. In this case, a secondary slag sorting device is provided between the screw conveyor 17 and the draining silo 12. That is, a secondary recovery tank and a secondary screw conveyor are provided at the discharge end of the screw conveyor 17. The glass shards conveyed by the screw conveyor 17 enter the secondary recovery tank for secondary agitation and cleaning. Clean water is injected into the secondary recovery tank through a water injection pipe for more thorough cleaning, so as to meet the standards for use as raw materials in production.

[0026] The draining belt conveyor 4 transports the cleaned glass to the crusher 5 for crushing. In this case, the crusher 5 is a hammer crusher, and the particle size (DU) after crushing is less than 50mm. The glass shards are conveyed and screened sequentially by the first sorting belt conveyor 6, the first vibrating screener 7, the iron removal belt conveyor 8, and the second vibrating screener 9 to further remove iron and impurities. Then, they enter the vortex metal separator 10 to remove other non-ferrous metals. The first vibrating screener 7 and the second vibrating screener 9 are used to remove impurities that are not easily broken and bottle heads. Then, they are transported to the draining hopper 12 by the second sorting belt conveyor 11. On both sides of the first sorting belt conveyor 6 and the second sorting belt conveyor 11, workers manually pick out obvious debris. The air separator 19 blows air on the glass shards on the first sorting belt conveyor 6 to reduce the moisture content of the glass shards and blow out impurities such as plastics with low density mixed in with the glass shards, saving labor. After processing, the waste glass has a non-ferrous metal content of ≤0.01%, a ferrous metal content of ≤0.004%, a non-fusible substance content of ≤0.02%, an organic impurity content of ≤0.01%, a comprehensive impurity removal rate of ≥99%, and a slag recovery rate of ≥99%.

[0027] Furthermore, a receiving chute 20 is provided below the feeding belt conveyor 2, the draining belt conveyor 4, the first sorting belt conveyor 6, the iron removal belt conveyor 8, and the second sorting belt conveyor 11. The receiving chute 20 below the draining belt conveyor 4 is connected to the slag recovery pool 16.

[0028] The bottom of the feeding belt conveyor 2, the draining belt conveyor 4, the first sorting belt conveyor 6, the iron removal belt conveyor 8, and the second sorting belt conveyor 11 are all equipped with belt cleaning roller brushes. The belt cleaning roller brushes are driven by the conveyor's drive rollers via belts and are used to brush off the glass shards adhering to the belts and collect them through the receiving chute 20. A collection trolley can be set at the discharge end of the receiving chute 20 to prevent the glass shards from scattering.

[0029] Preferably, the water washing feeding device 14 includes a box 22, with a feed inlet on one side of the box 22 communicating with the feeding belt conveyor 2, a discharge outlet at the bottom of the box 22 communicating with the drum washing machine 3, a slag washing water pipe 23 at the top inside the box 22, and a slag flushing water pipe 24 inside the box 22 on the side opposite to the feed inlet.

[0030] The slag washing pipe 23 sprays water from above and below to rinse the glass slag, while the slag flushing pipe 24 flushes the falling glass slag from one side, which can wash away some of the impurities attached to the glass slag. After the glass slag enters the drum washing machine 3, it can be cleaned more quickly.

[0031] The slag washing water pipe 23 and the slag flushing water pipe 24 are respectively connected to the water source through pumps. The flushed water, along with the glass slag, enters the drum washing machine 3 to clean the glass slag.

[0032] Preferably, the sorter 15 includes a vertical slag discharge cylinder 27, and an inclined slag discharge pipe 28 is provided on one side of the vertical slag discharge cylinder 27. A portion of the bottom of the inclined slag discharge pipe 28 is an opening communicating with the vertical slag discharge cylinder 27, and a screen 29 with one end extending into the vertical slag discharge cylinder 27 is provided at the opening of the inclined slag discharge pipe 28.

[0033] The iron bottle cap and attached glass shards fall into the vertical slag discharge pipe 27. When they hit the screen 29, the glass shards fall through the mesh, while the bottle cap and larger debris are discharged from the inclined slag discharge pipe 28.

[0034] Furthermore, a screen installation port is provided on the vertical slag discharge cylinder 27 on the side opposite to the inclined slag discharge pipe 28. The screen installation port has an openable door, and the screen 29 is movably inserted into the inclined slag discharge pipe 28. A screen installation support plate is provided inside the vertical slag discharge cylinder 27, and the screen 29 is movably installed on the support plate, which facilitates quick installation, removal, cleaning, and replacement.

[0035] Furthermore, a pair of crushing rollers 30 are staggered vertically inside the vertical slag discharge cylinder 27 located above the screen 29. The pair of crushing rollers 30 are driven by gears, and a crushing drive motor that drives the pair of crushing rollers 30 to rotate is provided on the vertical slag discharge cylinder 27.

[0036] A pair of crushing rollers 30 rotate to strike the falling bottle cap, breaking the glass bottle mouth connected to the cap, separating the cap from the glass, and allowing the glass shards to fall through the screen 29.

[0037] Furthermore, an overflow pipe 33 is provided on one side of the slag recycling tank 16, and a sewage discharge pipe 34 is provided at the bottom of the slag recycling tank 16. The sewage discharge pipe of the drum washing machine 3 is connected to the slag recycling tank 16. The overflow pipe 33 is used to discharge sewage and impurities floating on the sewage. A sedimentation tank is provided below the slag recycling tank 16 to facilitate sewage recycling. The sewage discharge pipe 34 is opened to discharge stains when cleaning the slag recycling tank 16.

[0038] Preferably, the air separator 19 includes a fan 35 and a receiving box 36. The fan 35 and the receiving box 36 are respectively installed on both sides of the first sorting belt conveyor 6. The receiving box 36, which is opposite to the fan 35, has openings on both the front and rear sides, and a filter screen 38 is provided on the opening on the rear side.

[0039] The air outlet of the blower 35 blows air onto the glass slag of the first sorting belt conveyor 6, blowing thin impurities such as film, paper, and fiber mixed in with the glass slag into the receiving box 36.

[0040] The first sorting belt conveyor 6 is equipped with a flat plate 40, which is installed in front of the air separator 19. The flat plate 40 is equipped with rake teeth to flatten the glass shards, so that the blower 35 can blow out the impurities mixed in with it.

[0041] Furthermore, the bottom of the receiving box 36 is connected to a slag collection filter bucket 39, and the bottom of the slag collection filter bucket 39 is equipped with an openable slag cleaning door. The slag collection filter bucket 39 is located at the bottom of the receiving box 36 on one side of the filter screen 38. After impurities enter the receiving box 36, they will fall downwards into the slag collection filter bucket 39 on their own. The impurities can be cleaned by opening the slag cleaning door.

Claims

1. A waste glass impurity removal processing production line, characterized in that... The system includes, from front to back, a hopper (1), a feeding belt conveyor (2), a drum washer (3), a drain belt conveyor (4), a crusher (5), a first sorting belt conveyor (6), a first vibrating screen (7), an iron removal belt conveyor (8), a second vibrating screen (9), a vortex metal separator (10), a second sorting belt conveyor (11), and a drain bin (12). A vibrating feeder (13) is provided below the discharge port of the hopper (1). A water washing feeder (14) is provided between the feeding belt conveyor (2) and the drum washer (3). 4) The discharge end drive roller of the feeding belt conveyor (2) is equipped with a permanent magnet. The discharge end of the feeding belt conveyor (2) is equipped with a sorter (15). The drum washing machine (3) is equipped with a water collection tank and a slag recovery pool (16) connected to the water collection tank. The slag recovery pool (16) is connected to the drain silo (12) through a screw conveyor (17). Multiple iron removers (18) are provided above the first picking belt conveyor (6) and the iron removal belt conveyor (8). Multiple air separators (19) are provided above the first picking belt conveyor (6) along its output direction.

2. The waste glass impurity removal processing production line according to claim 1, characterized in that... The feeding belt conveyor (2), the draining belt conveyor (4), the first sorting belt conveyor (6), the iron removal belt conveyor (8) and the second sorting belt conveyor (11) are all equipped with receiving chute (20). The receiving chute (20) under the draining belt conveyor (4) is connected to the slag recovery pool (16).

3. The waste glass impurity removal processing production line according to claim 1, characterized in that... The water washing feeding device (14) includes a box (22). One side of the box (22) is provided with a feed inlet that communicates with the feeding belt conveyor (2). The bottom of the box (22) is provided with a discharge outlet that communicates with the drum washing machine (3). The top of the box (22) is provided with a slag washing water pipe (23). The box (22) on the side opposite to the feed inlet is provided with a slag flushing water pipe (24).

4. The waste glass impurity removal processing production line according to claim 1, characterized in that... The sorter (15) includes a vertical slag discharge cylinder (27), and an inclined slag discharge pipe (28) is provided on one side of the vertical slag discharge cylinder (27). A portion of the bottom of the inclined slag discharge pipe (28) is an opening that communicates with the vertical slag discharge cylinder (27). A screen (29) with one end extending into the vertical slag discharge cylinder (27) is provided at the opening of the inclined slag discharge pipe (28).

5. A waste glass impurity removal processing production line according to claim 4, characterized in that... A screen installation port is provided on the vertical slag discharge cylinder (27) on the side opposite to the inclined slag discharge pipe (28). The screen installation port is provided with an openable door, and the screen (29) is movably inserted into the inclined slag discharge pipe (28).

6. The waste glass impurity removal processing production line according to claim 5, characterized in that... A pair of crushing rollers (30) are staggered in the vertical slag discharge cylinder (27) located above the screen (29). The pair of crushing rollers (30) are driven by gears. A crushing drive motor that drives the pair of crushing rollers (30) to rotate is provided on the vertical slag discharge cylinder (27).

7. The waste glass impurity removal processing production line according to claim 1, characterized in that... An overflow pipe (33) is provided on one side of the slag recycling pool (16), and a sewage pipe (34) is provided at the bottom of the slag recycling pool (16).

8. The waste glass impurity removal processing production line according to claim 1, characterized in that... The air separator (19) includes a blower (35) and a receiving box (36). The blower (35) and the receiving box (36) are respectively installed on both sides of the first picking belt conveyor (6). The receiving box (36) opposite to the blower (35) has openings on both the front and rear sides, and a filter screen (38) is provided on the opening on the rear side.

9. A waste glass impurity removal processing production line according to claim 8, characterized in that... The bottom of the receiving box (36) is connected to the slag collection filter (39), and the bottom of the slag collection filter (39) is provided with an openable slag cleaning door.

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