Waste metal recycling production line

Abstract

The invention relates to the technical field of waste metal recycling, and particularly discloses a waste metal recycling production line which comprises a crusher, a water washing pool, a waste water filter, a conveying belt, a drying box, a spiral feeding machine and a waste metal smelting furnace, the water washing pool is arranged on the right side of the crusher, and a stirring cleaning assembly and a flushing assembly are arranged on the water washing pool; the stirring and cleaning assembly is used for stirring and cleaning the crushed scrap metal, and the flushing assembly is used for flushing the stirred and cleaned scrap metal. According to the waste metal cleaning device, waste metal is crushed before cleaning, the interior of the crushed waste metal is easier to clean, the interior and the exterior of the waste metal can be fully cleaned in cooperation with a cleaning machine, and the crushed waste metal blocks can be sequentially subjected to stirring cleaning and high-pressure flushing when the waste metal is cleaned; and the residual impurities in the scrap metal are reduced, so that the content of the impurities in the regenerated metal after subsequent smelting is reduced, the purity of the regenerated metal is high, and the available range is wide.

Description

Technical Field

[0001] The invention belongs to the technical field of waste metal recycling, and in particular relates to a waste metal recycling production line. Background Art

[0002] Metal packaging containers refer to thin-walled packaging containers made of metal sheets; they are widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument packaging, industrial product packaging, and ammunition packaging. Among them, the largest number of metal packaging containers are used for food packaging. Most metal packaging containers are discarded after use. Discarded metal packaging containers are one of the common scrap metals.

[0003] In recent years, there has been a boom in the utilization of scrap metal resources in European countries, and it has achieved good environmental, social and economic benefits. Scrap metal is also a resource. Countries around the world have specialized units engaged in the recycling and utilization of scrap metal businesses. The recycled scrap metal is mainly used for smelting and converted into recycled metal, and some is used to produce machinery and equipment or parts, tools and civil appliances. There is already a basic process flow for the recycling and reuse of scrap metal.

[0004] In the process of scrap metal recycling, the collected scrap metal needs to be cleaned to remove the debris it carries before it can be put into the smelting furnace for smelting, thereby reducing the metal impurity content when the scrap metal is recycled.

[0005] In the prior art, most of the scrap metals are cleaned by directly placing them into a water washing tank for simple cleaning. It is difficult to remove the residual impurities inside the scrap metal. This results in a large amount of impurities in the smelted recycled metal during the subsequent smelting process, which affects the subsequent utilization of the recycled metal. To this end, we propose a scrap metal recycling production line. Summary of the invention

[0006] The object of the present invention is to provide a scrap metal recycling production line to solve the problem in the prior art that the smelted recycled metal carries a large amount of impurities.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A scrap metal recycling production line comprises a crusher, a water washing tank, a wastewater filter, a conveyor belt, a drying box, a spiral feeder and a scrap metal smelting furnace, wherein the water washing tank is arranged on the right side of the crusher, and a stirring and cleaning component and a flushing component are arranged on the water washing tank, wherein the stirring and cleaning component is used for stirring and cleaning the scrap metal after crushing, and the flushing component is used for flushing the scrap metal after stirring and cleaning;

[0009] The stirring cleaning assembly includes a transmission rod, which is movably connected to the inner side of the washing tank through a bearing, and the outer side of the transmission rod is fixedly connected to mesh plates densely distributed at equal intervals;

[0010] The flushing assembly comprises a U-shaped plate, the U-shaped plate is fixedly connected to the top of the washing tank, a hollow rod is arranged inside the U-shaped plate, and a high-pressure nozzle connected to the inside of the hollow rod is fixedly connected to the bottom of the hollow rod.

[0011] The drying box is arranged on the right side of the water washing tank, and a conveying component and an air supply heating component are arranged inside the drying box, which are used for conveying and drying the cleaned scrap metal and for heat exchange of the cleaning water.

[0012] Preferably, a driving motor is fixedly connected to the outside of the water washing tank, the driving motor is fixedly connected to a bidirectional worm via an output shaft, and a worm gear is arranged on the outside of the material turning member.

[0013] Preferably, a guide plate extending into the drying box is fixedly connected to the right side of the washing tank.

[0014] Preferably, the rear end of the transmission rod passes through the rear side of the washing tank, the left and right ends of the outer side of the bidirectional worm are arranged with reverse spiral grooves, and the outer sides of the two worm wheels are meshed with the outer side of the same bidirectional worm.

[0015] Preferably: a water pump is arranged outside the drying box, and a heat exchange plate is arranged inside the drying box.

[0016] Preferably: the water pump suction port is fixedly connected with a return pipe, the other end of which is connected with the water outlet of the wastewater filter, and a sewage pipe is arranged at the lower outer side of the washing tank, the other end of which is connected with the water inlet of the wastewater filter.

[0017] Preferably: the water outlet of the water pump is fixedly connected to a water outlet pipe, the other end of the water outlet pipe is connected to the water inlet of the heat exchange plate, the water outlet of the heat exchange plate is fixedly connected to a water inlet pipe, the other end of the water inlet pipe passes through the top of the U-shaped plate and is connected to the inside of the hollow rod, the top of the hollow rod is fixedly connected to a connecting column, and the connecting column is fixedly connected to the top of the U-shaped plate.

[0018] Preferably, the conveying assembly comprises a drying box, the drying box is arranged on the right side of the cleaning machine, and a conveyor belt is arranged inside the drying box.

[0019] Preferably: the air supply heating assembly comprises a heating box, the heating box is arranged above the drying box, a heater is arranged inside the heating box, fans distributed at equal intervals are arranged on the top of the heating box, and a ventilation duct connected to the inside of the heating box is fixedly connected to the bottom of the heating box.

[0020] Preferably, the bottom of the ventilation duct passes through the top of the drying box and extends into the interior of the drying box, a penetrating mounting hole is opened on the outside of the ventilation duct, and the heat exchange plate is arranged inside the ventilation duct.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention crushes the scrap metal before cleaning, so that the inside of the crushed scrap metal is easier to clean. The inside and outside of the scrap metal can be fully cleaned with a cleaning machine, thereby reducing the residual impurities in the scrap metal and reducing the impurity content in the recycled metal after subsequent smelting. The recycled metal has high purity and a wide range of applications.

[0023] 2. The present invention arranges a stirring cleaning component and a flushing component, and can sequentially stir and clean the crushed scrap metal blocks and perform high-pressure flushing on the scrap metal blocks when cleaning the scrap metal, thereby avoiding the adsorption of debris in the water in the washing tank on the scrap metal blocks, improving the cleaning effect of the scrap metal, and further reducing the content of impurities in the recycled metal after smelting.

[0024] 3. The present invention provides a wastewater filter to continuously circulate and filter the cleaning water in the washing tank, and inputs the filtered water into the flushing component to flush the scrap metal, thereby reducing the use of water resources, improving the utilization rate of water resources, and reducing the cost of recycling scrap metals.

[0025] 4. The present invention can heat the water temperature for washing the cleaned scrap metal while drying the cleaned scrap metal by setting a drying box. When the scrap metal is washed with high-temperature water, the sundries and oil stains adsorbed on the surface can be cleaned more thoroughly, further improving the cleaning effect of the scrap metal. By drying the scrap metal before smelting, the working efficiency of scrap metal smelting is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 One of the three-dimensional diagrams of the present invention;

[0027] Figure 2 This is the second stereogram of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the water washing tank of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection between the driving motor and the material turning member of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of the flushing component of the present invention;

[0031] Figure 6 It is a partial structural schematic diagram of the hollow rod of the present invention;

[0032] Figure 7 It is a partial structural schematic diagram of the drying box of the present invention;

[0033] Figure 8 It is a partial structural schematic diagram of the heating box of the present invention;

[0034] Fig. 9 This is a schematic diagram of an internal explosion of a heating box of the present invention;

[0035] Fig.10 It is a schematic diagram of the pipeline connection of part of the wastewater filter of the present invention.

[0036] In the figure: 1. crusher; 2. conveyor belt; 3. wastewater filter; 4. washing tank; 401. sewage pipe; 402. guide plate; 403. mesh plate; 404. bidirectional worm; 405. worm gear; 406. return pipe; 407. water pump; 408. water inlet pipe; 409. U-shaped plate; 410. drive motor; 411. transmission rod; 412. water outlet pipe; 413. heat exchange plate; 414. high-pressure nozzle; 415. connecting column; 416. hollow rod; 5. drying box; 501. heating box; 502. mounting hole; 503. fan; 504. conveyor belt; 505. heater; 506. ventilation duct; 6. spiral feeder; 7. scrap metal melting furnace. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Reference Figure 1-Figure 10 As shown, the present invention provides a waste metal recycling production line, comprising:

[0039] Crusher 1, which is used for crushing the scrap metal into blocks after classification. Crusher 1 comprises a body, a feed inlet is arranged on the top of the body, and a discharge outlet is arranged on the right side of the body for discharging the scrap metal blocks after crushing;

[0040] A water washing tank 4 is arranged on the right side of the crusher 1. The water washing tank 4 includes a stirring and cleaning component and a flushing component. The stirring and cleaning component is used to stir and clean the scrap metal after crushing, and the flushing component is used to flush the scrap metal after stirring and cleaning. A wastewater filter 3 is arranged at the rear side of the water washing tank 4. A water inlet for sewage to enter is arranged on the left side of the wastewater filter 3, and a water outlet is arranged on the right side of the wastewater filter 3 for filtering and treating the cleaning water;

[0041] A drying box 5 is arranged on the right side of the washing tank 4. The drying box 5 includes a conveying component and an air supply heating component, which are used for conveying and drying the cleaned scrap metal and exchanging the heat of the cleaning water. A screw feeder 6 for feeding the scrap metal smelting furnace 7 is arranged on the right side of the drying box 5. A scrap metal smelting furnace 7 for smelting scrap metal is arranged below the screw feeder 6. A feeding slot is arranged on the top of the scrap metal smelting furnace 7 to facilitate the scrap metal blocks conveyed by the screw feeder 6 to enter the interior thereof for smelting at high temperature.

[0042] The conveyor belt 2 is arranged between the crusher 1 and the water washing tank 4, and is used to transport the crushed scrap metal blocks to the water washing tank 4. The conveyor belt 2 is arranged in a mesh shape to facilitate the falling of dust and debris in the scrap metal blocks during the transportation process.

[0043] Specifically, the conveying component includes a drying box 5, which is arranged on the right side of the washing tank 4. A conveyor belt 504 is arranged inside the drying box 5. The conveyor belt 504 is arranged in a mesh shape to facilitate the penetration of hot air during drying and avoid residual water vapor.

[0044] In a further embodiment, referring to Figure 1-Figure 7 The stirring and cleaning component includes a water washing tank 4, which is arranged on the right side of the crusher 1. The bottom of the water washing tank 4 is arranged in an inclined shape, with the right side higher than the left side, so that the deposited dust and impurities flow to the bottom of the left side of the water washing tank 4 and are discharged through the sewage pipe connected to the water body. Two groups of symmetrically arranged turning parts are arranged in the water washing tank 4, and the turning parts are used to stir the waste metal blocks in the water in the water washing tank 4. A driving motor 410 is fixedly connected to the outside of the water washing tank 4. The driving motor 410 provides power for the operation of the water washing tank 4. The driving motor 410 is fixedly connected to a bidirectional worm 404 through an output shaft. The left and right ends of the outer side of the bidirectional worm 404 are arranged with reverse spiral grooves. The right end of the bidirectional worm 404 is movably connected to a support block through a bearing. The support block is fixedly connected to the outside of the water washing tank 4, and a worm gear 405 is arranged on the outside of the turning part.

[0045] The turning piece includes a transmission rod 411, which is movably connected to the inner side of the washing tank 4 through a bearing. A mesh plate 403 with dense distribution at equal intervals is fixedly connected to the outer side of the transmission rod 411. The mesh plate 403 facilitates the washing water to carry debris and dust into the washing tank 4. A guide plate 402 extending into the drying box 5 is fixedly connected to the right side of the washing tank 4. A notch is opened on the right side of the washing tank 4. The guide plate 402 is fixedly connected to the inner side of the notch to discharge the waste metal blocks after cleaning and facilitate their entry into the drying box 5. The rear end of the transmission rod 411 passes through the rear side of the washing tank 4. The worm gear 405 is fixedly connected to the outer side of the transmission rod 411. The outer sides of the two worm gears 405 are meshed with the outer side of the same bidirectional worm 404. The rotation of the bidirectional worm 404 can simultaneously drive the two turning pieces to rotate in opposite directions, respectively stirring and containing the waste metal blocks, and cooperating with each other to fully clean the waste metal blocks.

[0046] In this embodiment, the scrap metal blocks entering the water washing tank 4 are cleaned differently with the cooperation of the stirring cleaning component and the rinsing component, and the rinsing component is arranged on the right side of the stirring cleaning component. The rinsing component can remove the debris adsorbed on the surface of the scrap metal blocks and avoid secondary contamination of the scrap metal blocks by the water in the water washing tank 4.

[0047] In a further embodiment, referring to Figure 5-Figure 7The flushing assembly includes a U-shaped plate 409, which is fixedly connected to the top of the washing tank 4. The U-shaped plate 409 is used to install and fix the components in the flushing assembly so that it is located above the scrap metal blocks contained, so as to facilitate flushing the scrap metal blocks. A hollow rod 416 is arranged inside the U-shaped plate 409. The hollow rod 416 is used to facilitate the incoming water to be divided into each high-pressure nozzle 414. The bottom of the hollow rod 416 is fixedly connected to a hollow rod 416 internally connected to the hollow rod 416. The high-pressure nozzles 414 are evenly spaced at the bottom of the hollow rod 416. The water sprayed by the high-pressure nozzles 414 is used to wash the waste metal blocks. A water pump 407 is provided on the outside of the drying box 5. The water pump 407 is used to extract the water filtered by the wastewater filter 3. A heat exchange plate 413 is provided inside the drying box 5. The heat exchange plate 413 is made of a high thermal conductivity material. The inside of the heat exchange plate 413 is hollow. The outside is respectively provided with a water inlet and a water outlet. The water pump 407 extracts the water. The water inlet is fixedly connected with a return pipe 406, and the return pipe 406 is used for the water in the wastewater filter 3 to enter the water pump 407. The other end of the return pipe 406 is connected with the water outlet of the wastewater filter 3. A sewage pipe 401 is arranged at the lower outer side of the water washing tank 4. The sewage pipe 401 facilitates the sewage in the water washing tank 4 to enter the wastewater filter 3. The other end of the sewage pipe 401 is connected with the water inlet of the wastewater filter 3. The water outlet of the water pump 407 is fixedly connected with an outlet pipe 412. The other end of the water outlet pipe 412 is connected to the water inlet of the heat exchange plate 413, and the water outlet of the heat exchange plate 413 is fixedly connected to the water inlet pipe 408. The other end of the water inlet pipe 408 passes through the top of the U-shaped plate 409 and is connected to the inside of the hollow rod 416. The top of the hollow rod 416 is fixedly connected to a connecting column 415, and the connecting column 415 is fixedly connected to the top inside the U-shaped plate 409. The connecting column 415 is used to fix the hollow rod 416 so that it is fixed to the top inside the U-shaped plate 409.

[0048] In this embodiment, the water pump 407 draws water filtered by the wastewater filter 3, and after being heated by the drying box 5, the cleaned scrap metal blocks are rinsed again. Under the flushing of the high-temperature water, impurities, oil stains and other pollution on the surface of the scrap metal blocks can be quickly and effectively removed, thereby improving the cleanliness of the scrap metal blocks and facilitating subsequent smelting, recycling and reuse.

[0049] In a further embodiment, referring to Figure 7-Figure 9The air supply heating component includes a heating box 501, which is arranged above the drying box 5. A heater 505 is arranged inside the heating box 501, and a heating elbow is arranged outside the heater 505. The heating elbow is arranged inside the heating box 501. Fans 503 distributed at equal intervals are arranged on the top of the heating box 501. A ventilation duct 506 connected to the inside of the heating box 501 is fixedly connected to the bottom of the heating box 501. The bottom of the ventilation duct 506 passes through the top of the drying box 5 and extends into the inside of the drying box 5. A penetrating mounting hole 502 is opened on the outside of the ventilation duct 506. The heat exchange plate 413 is arranged inside the ventilation duct 506. The heat generated by the heating elbow when heated exchanges heat with the water in the heat exchange plate 413 to heat the water.

[0050] In this embodiment, the heating bend of the heater 505 heats the air in the heating box 501, and the fan 503 drives the heated air to flow downward, and enters the drying box 5 below through the ventilation duct 506. The high temperature dries the cleaned scrap metal blocks on the conveyor belt 504 in the drying box 5. The dried scrap metal blocks continue to move to the right along the conveyor belt 504 and enter the screw feeder 6, and then enter the scrap metal smelting furnace 7 through the screw feeder 6 for smelting.

[0051] It should be noted that the above-mentioned crusher 1, water washing tank 4, wastewater filter 3, conveyor belt 2, drying box 5, screw feeder 6 and scrap metal smelting furnace 7 are all common equipment in the scrap metal recycling process, belong to the prior art, are well known in the art, and will not be described in detail here.

[0052] The working principle of the present invention is as follows:

[0053] The sorted scrap metal is put into the crusher 1 from the feed hopper, and the crusher 1 crushes the scrap metal. The crushed scrap metal blocks enter the conveyor belt 2, and the conveyor belt 2 conveys the crushed scrap metal blocks to the washing tank 4;

[0054] The driving motor 410 drives the bidirectional worm 404 to rotate through the output shaft, and the rotation of the bidirectional worm 404 drives the two turning parts to rotate in opposite directions. The turning part on the left side rotates counterclockwise to turn the scrap metal blocks entering the water washing tank 4 into the inside of the water washing tank 4, and its surface and interior are cleaned under the action of the water body. The turned scrap metal blocks will be pushed to the right turning part, and the two adjacent mesh plates 403 drive the scrap metal blocks in the water washing tank 4 to be loaded. When rotating to the bottom of the high-pressure nozzle 414, the water pump 407 extracts the water filtered by the wastewater filter 3 and enters the heat exchange plate 413. The heat generated by the drying box 5 when working heats the water in the heat exchange plate 413. The heated water passes through the hollow rod 416 and the high-pressure nozzle 414 to wash the scrap metal blocks between the two adjacent mesh plates 403. The washed scrap metal blocks enter the drying box 5 through the guide plate 402 for drying.

[0055] The heating elbow in the heating box 501 heats the air in the heating box 501, and the fan 503 drives the external air into the heating box 501, so that the heated air enters the drying box 5 through the ventilation duct 506 to dry the cleaned scrap metal blocks on the conveyor belt 2;

[0056] The dried scrap metal blocks enter the screw feeder 6, and then enter the scrap metal smelting furnace 7 below through the screw feeder 6 for smelting. The smelted scrap metal liquid can be used to prepare different workpieces according to needs, thereby completing the recycling of scrap metal.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste metal recycling production line, comprising a crusher (1), a water washing tank (4), a wastewater filter (3), a conveyor belt (2), a drying box (5), a screw feeder (6) and a waste metal smelting furnace (7), characterized in that: The water washing tank (4) is arranged on the right side of the crusher (1), and is provided with a stirring and cleaning component and a flushing component. The stirring and cleaning component is used for stirring and cleaning the scrap metal after crushing, and the flushing component is used for flushing the scrap metal after stirring and cleaning; The stirring cleaning assembly comprises a transmission rod (411), the transmission rod (411) is movably connected to the inner side of the washing tank (4) via a bearing, and mesh plates (403) densely distributed at equal intervals are fixedly connected to the outer side of the transmission rod (411); The flushing assembly comprises a U-shaped plate (409), the U-shaped plate (409) is fixedly connected to the top of the water washing tank (4), a hollow rod (416) is arranged inside the U-shaped plate (409), and a high-pressure nozzle (414) which is in communication with the inside of the hollow rod (416) is fixedly connected to the bottom of the hollow rod (416); The drying box (5) is arranged on the right side of the washing tank (4), and a conveying component and an air supply heating component are arranged inside the drying box (5) for conveying and drying the cleaned scrap metal and for heat exchange of the cleaning water.

2. A waste metal recycling production line according to claim 1, characterized in that: A driving motor (410) is fixedly connected to the outside of the water washing tank (4), the driving motor (410) is fixedly connected to a bidirectional worm (404) via an output shaft, and a worm wheel (405) is fixedly connected to the outside of the transmission rod.

3. The waste metal recycling production line according to claim 1 is characterized in that: A material guide plate (411) extending into the interior of the drying box (5) is fixedly connected to the right side of the water washing tank (4).

4. The waste metal recycling production line according to claim 2 is characterized in that: The rear end of the transmission rod (411) passes through the rear side of the washing tank (4), the left and right ends of the outer side of the bidirectional worm (404) are arranged with reverse spiral grooves, and the outer sides of the two worm wheels (405) are meshed with the outer side of the same bidirectional worm (404).

5. The waste metal recycling production line according to claim 1 is characterized by: A water pump (407) is arranged outside the drying box (5), and a heat exchange plate (413) is arranged inside the drying box (5).

6. A waste metal recycling production line according to claim 5, characterized in that: The water pump (407) is fixedly connected to a water inlet with a return pipe (406), the other end of which is in communication with a water outlet of a wastewater filter (3); a sewage pipe (401) is arranged at the lower outer side of the water washing tank (4), the other end of which is in communication with a water inlet of the wastewater filter (3).

7. The waste metal recycling production line according to claim 5, characterized in that: The water outlet of the water pump (407) is fixedly connected to a water outlet pipe (412), the other end of the water outlet pipe (412) is connected to the water inlet of the heat exchange plate (413), the water outlet of the heat exchange plate (413) is fixedly connected to a water inlet pipe (408), the other end of the water inlet pipe (408) passes through the top of the U-shaped plate (409) and is connected to the inside of the hollow rod (416), the top of the hollow rod (416) is fixedly connected to a connecting column (415), and the connecting column (415) is fixedly connected to the top of the U-shaped plate (409).

8. The waste metal recycling production line according to claim 1 is characterized by: The conveying assembly comprises a drying box (5), wherein the drying box (5) is arranged on the right side of the washing tank (4), and a conveyor belt (504) is arranged inside the drying box (5).

9. The waste metal recycling production line according to claim 1, characterized in that: The air supply heating assembly comprises a heating box (501), wherein the heating box (501) is arranged above the drying box (5), a heater (505) is arranged inside the heating box (501), fans (503) distributed at equal intervals are arranged on the top of the heating box (501), and a ventilation duct (506) connected to the inside of the heating box (501) is fixedly connected to the bottom of the heating box (501).

10. A waste metal recycling production line according to claim 9, characterized in that: The bottom of the ventilation duct (506) passes through the top of the drying box (5) and extends into the interior of the drying box (5). A penetrating mounting hole (502) is provided on the outside of the ventilation duct (506), and the heat exchange plate (413) is arranged inside the ventilation duct (506).

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