A dust removal fresh air circulation system of a refrigerator recycling line

Abstract

The application relates to the technical field of waste equipment recycling, in particular to a dust removal fresh air circulation system of a refrigerator recycling line, which comprises a conveying belt mechanism, a double-shaft shredder, a dust removal mechanism, a conveying belt mechanism two, a waste gas exhaust pipe and a waste gas return pipe. The output end of the conveying belt mechanism is arranged towards the input end of the double-shaft shredder, the bottom of the double-shaft shredder is connected with the end of the waste gas exhaust pipe, the other end of the waste gas exhaust pipe is connected with the dust removal mechanism, the end of the waste gas return pipe is connected with the dust removal mechanism, and the output end of the waste gas return pipe is arranged towards the input end of the conveying belt mechanism two. The device is provided with the dust removal mechanism, the waste gas exhaust pipe and the waste gas return pipe, so that the use amount of fresh air can be reduced when the double-shaft shredder works, the waste gas can be purified for multiple times, the gas discharged from the device can reach the international emission index, and the treatment capacity of the device for the waste gas is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste equipment recycling, and particularly relates to a dust removal fresh air circulation system of a refrigerator recycling line. BACKGROUND

[0002] Refrigerator recycling has great economic significance and plays a significant role in environmental protection. Through the recycling of waste refrigerators, resource utilization can be maximized, and the development of industrial equipment can be promoted to be standardized and automated.

[0003] However, the existing refrigerator recycling technology still has deficiencies in implementation, that is, a large amount of waste gas is generated during the disassembly of waste refrigerators, and although the waste gas is treated, it still cannot meet the international waste gas emission indicators. SUMMARY

[0004] The present application provides a dust removal fresh air circulation system of a refrigerator recycling line to solve the problems in the background art.

[0005] In order to achieve the above-mentioned application purposes, the present application provides the following technical scheme: a dust removal fresh air circulation system of a refrigerator recycling line, comprising: a conveying belt mechanism, a double-shaft shredder, a dust removal mechanism, a conveying belt mechanism two, a waste gas exhaust pipe and a waste gas return pipe, the output end of the conveying belt mechanism is arranged towards the input end of the double-shaft shredder, the bottom of the double-shaft shredder is connected with the end of the waste gas exhaust pipe, the other end of the waste gas exhaust pipe is connected with the dust removal mechanism, the end of the waste gas return pipe is connected with the dust removal mechanism, and the output end of the waste gas return pipe and the output end of the double-shaft shredder are both arranged towards the input end of the conveying belt mechanism two.

[0006] Preferably, a shaft fan is connected to the waste gas return pipe.

[0007] Preferably, the dust removal fresh air circulation system further comprises a waste gas exhaust pipe two, the input end of the waste gas exhaust pipe two is arranged above the conveying belt mechanism, and the other end of the waste gas exhaust pipe two is connected with the dust removal mechanism.

[0008] Preferably, the output end of the conveying belt mechanism two is arranged towards the input end of a vertical crusher, the top of the vertical crusher is connected with the input end of a waste gas exhaust pipe three, the other end of the waste gas exhaust pipe three is connected with the dust removal mechanism, the end of a waste gas return pipe two is connected with the dust removal mechanism, the output end of the waste gas return pipe two and the input end of a vibrating feeder are both arranged towards the output end of the vertical crusher, the bottom of the vertical crusher is connected with the end of a foam waste gas exhaust pipe, the foam waste gas exhaust pipe is connected with a sorting machine and an auxiliary fan, and the other end of the foam waste gas exhaust pipe is connected with a foam volume reduction machine.

[0009] Preferably, a shaft fan two is connected to the waste gas return pipe two.

[0010] Preferably, the output end of the vibrating feeder is arranged towards the input end of the conveying belt mechanism three, the output end of the conveying belt mechanism three is arranged towards the input end of the foam volume reducer, the foam volume reducer is connected with the input end of the waste gas exhaust pipe four, the other end of the waste gas exhaust pipe four is connected on the sorting machine, the foam volume reducer is connected with the input end of the waste gas return pipe three, the other end of the waste gas return pipe three is connected with the dust removal mechanism, and the waste gas return pipe three is connected with the shaft fan three.

[0011] Preferably, the output end of the foam volume reducer is arranged towards the guide plate.

[0012] Preferably, the dust removal mechanism comprises a pulse dust collector, a total air pipe, a filter, a total fan, a total waste gas return pipe and an auxiliary waste gas return pipe, the other ends of the waste gas exhaust pipe, the waste gas exhaust pipe two, the waste gas exhaust pipe three and the waste gas exhaust pipe four are connected with the total air pipe, the total air pipe is connected with the pulse dust collector and the filter, the other end of the total air pipe is connected with the input end of the total fan, the output end of the total fan is connected with the end of the total waste gas return pipe, the end of the auxiliary waste gas return pipe is connected on the total waste gas return pipe, the other end of the auxiliary waste gas return pipe is arranged away from the pulse dust collector, and the other ends of the waste gas return pipe, the waste gas return pipe two and the waste gas return pipe three are connected with the total waste gas return pipe.

[0013] Preferably, the magnetic attraction mechanism comprises a mounting frame, a conveying belt, a roller shaft, a driving piece and a magnetic attraction assembly, the mounting frame is connected on the conveying belt mechanism three, two roller shafts are rotationally connected on the mounting frame, the end of one roller shaft is connected with the output end of the driving piece, the driving piece is connected with the mounting frame, the magnetic attraction assembly is arranged on the mounting frame, the magnetic attraction assembly is arranged between the conveying belts, the inner wall of the conveying belt is frictionally matched with the side wall of the two roller shafts, a plurality of auxiliary roller shafts are rotationally connected on the mounting frame, and the side wall of the auxiliary roller shaft is frictionally matched with the inner wall of the conveying belt.

[0014] Preferably, the magnetic attraction assembly comprises a shell, an iron core column, an air inlet pipe and a waste gas return pipe, the shell is connected on the mounting frame, the bottom wall of the shell is connected with a plurality of iron core columns, a coil is sleeved on each iron core column, the air inlet pipe is connected on one side of the shell, the end of the waste gas return pipe is connected on the other side of the shell, the other end of the waste gas return pipe is arranged towards the output end of the conveying belt, the output end of the conveying belt is arranged towards the top opening of the guide pipe, the bottom opening of the guide pipe is arranged away from the mounting frame, the air inlet pipe is connected with the air pump, the output shaft of the air pump is connected with a belt pulley, the belt pulley is drivingly connected with a belt pulley two through a belt, and the belt pulley two is connected with one auxiliary roller shaft.

[0015] The present application has the following beneficial effects:

[0016] In the scheme of the present application:

[0017] The device sets dust removal mechanism, waste gas exhaust pipe and waste gas return pipe, which can not only use new air when the double-shaft shredder works, but also can purify the waste gas for many times, so that the gas emission of the device reaches the international emission index, and the waste gas treatment capacity of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present application;

[0019] Figure 2 It is a schematic diagram of the installation position of the vibrating feeder of the present application;

[0020] Figure 3 It is a schematic diagram of the installation position of the vortex separator of the present application;

[0021] Figure 4 It is a schematic diagram of the installation position of the extruder of the present application;

[0022] Figure 5 It is a schematic diagram of the structure of the dust removal machine of the present application;

[0023] Figure 6 It is a schematic diagram of the structure of the magnetic attraction machine of the present application;

[0024] Figure 7 It is a sectional view of the magnetic attraction machine of the present application;

[0025] Figure 8 It is a schematic diagram of the connection relationship between the air inlet pipe and the air pump of the present application;

[0026] Figure 9 It is a schematic diagram of the transmission connection relationship of the belt wheel, belt and belt wheel two of the present application;

[0027] Figure 10 It is a schematic diagram of the connection relationship of the sprocket, chain and sprocket two of the present application;

[0028] Figure 11 It is a schematic diagram of the connection relationship between the air inlet pipe and the filter screen of the present application;

[0029] Figure 12 It is a schematic diagram of the relative position relationship between the driving arc and the adjusting plate of the present application;

[0030] Figure 13 It is a schematic diagram of the opening position of the air guide hole on the mounting column of the present application;

[0031] Figure 14 It is a schematic diagram of the sliding connection relationship between the air storage tank and the piston ring of the present application;

[0032] Figure 15 It is a schematic diagram of the connection relationship between the connecting rod two and the rubber sheet of the present application.

[0033] Wherein: conveyor belt mechanism 1, double shaft shredder 2, dust removal mechanism 3, conveyor belt mechanism two 4, waste gas exhaust pipe 5, waste gas return pipe 6, shaft fan 7, waste gas exhaust pipe two 8, vertical crusher 9, waste gas exhaust pipe three 10, waste gas return pipe two 11, shaft fan two 12, vibrating feeder 13, conveyor belt mechanism three 14, foam volume reduction machine 15, waste gas exhaust pipe four 16, waste gas return pipe three 17, shaft fan three 18, guide plate 19, pulse dust collector 20, total air pipe 21, filter 22, total fan 23, total waste gas return pipe 24, auxiliary waste gas return pipe 25, mounting frame 26, conveyor belt 27, roller shaft 28, auxiliary roller shaft 29, shell 30, iron core column 31, air inlet pipe 32, air outlet pipe 33, guide pipe 34, connecting rod two 35, air pump 36, output shaft 37, pulley 38, belt 39, pulley two 40, drive motor 41, sprocket 42, chain 43, sprocket two 44, filter screen 45, mounting plate 46, spring 47, mounting plate two 48, drive arc 49, adjusting plate 50, connecting rod 51, adjusting pipe 52, mounting column 53, air guide hole 54, spring two 55, air storage pipe 56, air storage tank 57, piston ring 58, spring three 59, waste gas exhaust pipe two 60, sorting machine 61, material collecting hopper 62, auxiliary fan 63, pressure reducing pipe 64, waste gas exhaust pipe five 65, rubber sheet 66. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and are not used to limit the present application.

[0035] Embodiment one: reference Figures 1-15 A dust removal fresh air circulation system of a refrigerator recycling line, comprising: a conveyor belt mechanism 1, a double shaft shredder 2, a dust removal mechanism 3, a conveyor belt mechanism two 4, a waste gas exhaust pipe 5 and a waste gas return pipe 6, the output end of the conveyor belt mechanism 1 is arranged towards the input end of the double shaft shredder 2, the bottom of the double shaft shredder 2 is connected with the end of the waste gas exhaust pipe 5, the other end of the waste gas exhaust pipe 5 is connected with the dust removal mechanism 3, the dust removal mechanism 3 is connected with the end of the waste gas return pipe 6, and the output end of the waste gas return pipe 6 is arranged towards the input end of the conveyor belt mechanism two 4.

[0036] The principle and beneficial effects of the above scheme are:

[0037] The waste refrigerator after being disassembled by the compressor is placed on the conveying belt mechanism 1, and is conveyed into the double-shaft shredder 2 for shredding. The foam in the heat preservation layer in the refrigerator can produce cyclopentane, freon and dust. The dust removal mechanism 3 sucks the above-mentioned waste gas at the bottom of the double-shaft shredder 2 through the waste gas exhaust pipe 5, and processes the waste gas. After processing, the processed gas is input into the double-shaft shredder 2 again through the waste gas return pipe 6. At this time, the double-shaft shredder 2 receives clean air through the input end and the waste gas return pipe 6, thereby reducing the suction amount of fresh air.

[0038] The device sets the dust removal mechanism 3, the waste gas exhaust pipe 5 and the waste gas return pipe 6, which not only reduces the use amount of fresh air when the double-shaft shredder 2 is working, but also reduces the total amount of waste gas emission by multiple purification treatment of the waste gas, so that the gas emission of the device itself reaches the international emission index, and the treatment capacity of the device for waste gas is improved.

[0039] At the same time, when the waste gas return pipe 6 discharges the processed waste gas, the negative pressure in the waste gas exhaust pipe 5 connected to the double-shaft shredder 2 can prevent the processed waste gas from being directly discharged to the outside, thereby avoiding the phenomenon of waste gas leakage when the device is working.

[0040] Further, since the device is provided with the dust removal mechanism 3, the waste gas generated during the disassembly of the waste refrigerator can be directly discharged to the outside environment after being treated, thereby avoiding pollution to the surrounding environment during work.

[0041] Embodiment two: refer to Figures 1-15 The waste gas return pipe 6 is connected with a shaft fan 7.

[0042] The principle and beneficial effects of the above-mentioned scheme are:

[0043] When discharging the processed waste gas, the shaft fan 7 increases the air pressure of the processed gas during discharge; further, the gas output by the shaft fan 7 can be used to blow the debris of the waste refrigerator again, so as to further release the dust or impurities in the debris into the double-shaft shredder 2, and then conveyed to the dust removal mechanism 3 through the waste gas exhaust pipe 5 for treatment.

[0044] Embodiment three: refer to Figures 1-15 Further comprising a waste gas exhaust pipe two 8, the input end of the waste gas exhaust pipe two 8 is arranged above the conveying belt mechanism 1, and the other end of the waste gas exhaust pipe two 8 is connected with the dust removal mechanism 3.

[0045] The principle and beneficial effects of the above-mentioned scheme are:

[0046] The refrigerant device needs to be treated when the waste refrigerator is disassembled, that is, the compressor element is first disassembled to prevent the refrigerant from being released into the air to cause air pollution. At this time, the main waste gas generated by disassembly is air containing a large amount of dust. The dust on the conveying belt mechanism 1 is sucked through the waste gas exhaust pipe 2 8 to achieve the purpose of preliminary purification of the waste refrigerator. Then the waste refrigerator is conveyed by the conveying belt mechanism 1, and then crushed to avoid generating a large amount of dust when the waste refrigerator is torn apart.

[0047] Embodiment four: Figures 1-15 The output end of the conveying belt mechanism two 4 is arranged towards the input end of the vertical crusher 9. The top of the vertical crusher 9 is connected with the input end of the waste gas exhaust pipe three 10. The other end of the waste gas exhaust pipe three 10 is connected with the dust removal mechanism 3. The end of the waste gas return pipe two 11 is connected with the dust removal mechanism 3. The output end of the waste gas return pipe two 11 is arranged towards the output end of the vertical crusher 9. The bottom of the vertical crusher 9 is connected with the end of the foam waste gas exhaust pipe two 60. The foam waste gas exhaust pipe two 60 is connected with the sorting machine 61 and the auxiliary fan 63. The other end of the foam waste gas exhaust pipe two 60 is connected with the material collecting hopper 62.

[0048] The bottom of the material collecting hopper 62 is connected with a compressor. The top of the material collecting hopper 62 is connected with the end of the pressure reducing pipe 64. The other end of the pressure reducing pipe 64 is connected with the sorting machine 61. The top of the sorting machine 61 is connected with the dust removal mechanism 3 through the waste gas exhaust pipe five 65.

[0049] The waste gas return pipe two 11 is connected with the shaft fan two 12.

[0050] The principles and advantages of the above-mentioned scheme are:

[0051] The crushing effect of the vertical crusher 9 is different from that of the double-shaft shredder 2. The double-shaft shredder 2 can shred objects with large volume and high structural strength, while the vertical crusher 9 can crush objects with small volume. The cooperation of the vertical crusher 9 and the double-shaft shredder 2 can completely crush the waste refrigerator and increase the probability of separating metal materials from other materials in the waste refrigerator, which is convenient for the recycling of metal materials in the next step.

[0052] The debris crushed by the vertical crusher 9 is conveyed by the vibrating feeder 13. The metal materials and other materials are further separated when conveyed by the vibrating feeder 13. The waste gas exhaust pipe three 10 recycles the waste gas when the vertical crusher 9 is crushing. The waste gas return pipe two 11 inputs the gas filtered by the dust removal mechanism 3 to the output end of the vibrating feeder 13 and the vertical crusher 9 to blow the dust or waste gas in the debris, which further increases the cleaning effect of the waste gas.

[0053] When the vertical crusher 9 further crushes the large-volume debris, the foam used as the heat preservation material in the waste refrigerator is separated out, and under the action of the gas provided by the shaft fan 12, the gas blows the debris through the waste gas return pipe 11. Since the foam is lighter in mass, the foam can enter the foam waste gas exhaust pipe 2, and under the action of the sorting machine 61 and the auxiliary fan 63, the foam enters the collecting hopper 62, and under the action of gravity, the foam enters the compressor connected at the bottom of the collecting hopper 62 for unified compression and volume reduction treatment, so as to avoid that the foam occupies a large space for storage after the waste refrigerator is crushed, and to improve the efficiency of waste foam storage and transportation.

[0054] When the collecting hopper 62 recovers the foam debris, the dust remaining on the foam due to electrostatic action or dust adsorption can be retained in the collecting hopper 62. The dust enters the sorting machine 61 through the pressure reduction pipe 64, and then enters the dust removal mechanism 3 through the waste gas exhaust pipe 5. The sorting machine 61 separates the dust from the air by using the cyclone separation principle, so that the preliminarily treated waste gas can be discharged to the dust removal mechanism 3 after the sorting machine 61 works, thereby reducing the load of the dust removal mechanism 3 during work.

[0055] The treatment of the dust in the collecting hopper 62 can not only make the device meet the environmental protection requirements during work, but also avoid the aggravation of the wear between parts of the compressor during work, thereby prolonging the service life of the compressor. Further treatment of the dust can avoid overheating of the compressor. Since the compression of the compressor itself during work can generate heat release, although the compressor is designed with related parts for cooling to prevent overheating of the device, the accumulated dust can still reduce the heat dissipation effect. Therefore, the cleaning of the dust in the collecting hopper 62 can further ensure the normal heat dissipation of the compressor to prolong its service life, further reduce the cleaning frequency and difficulty of the compressor, and realize the efficient and environmentally friendly working process of the device. The specific model of the compressor is GREENMAX EPE pearl cotton foam compressor ZEUS-C100.

[0056] Embodiment five: Figures 1-15 The output end of the vibrating feeder 13 is arranged towards the input end of the conveyor belt mechanism 14, the output end of the conveyor belt mechanism 14 is arranged towards the input end of the eddy current sorting machine 15, the conveyor belt mechanism 14 is connected with a magnetic attraction mechanism, the eddy current sorting machine 15 is connected with the input end of the waste gas exhaust pipe 4, the other end of the waste gas exhaust pipe 4 is connected to the dust removal mechanism 3, the eddy current sorting machine 15 is connected with the input end of the waste gas return pipe 3, the other end of the waste gas return pipe 3 is connected to the dust removal mechanism 3, and the waste gas return pipe 3 is connected with the shaft fan 3.

[0057] The principle and beneficial effects of the above scheme are as follows:

[0058] After the debris is output from the vibrating feeder 13, it enters the eddy current separator 15 through the conveying belt mechanism 14, at this time, only metal is left in the debris, the principle of the eddy current separator 15 is to form an alternating magnetic field inside, use the difference in conductivity of copper and aluminum, and under the action of the magnetic field, it will be bounced away, the flying distance is different, and the classification and recovery are completed, at this time, a small amount of dust in the debris will enter the waste gas exhaust pipe 16 and enter the separator 61 for unified collection, further improve the environmental protection effect, and reduce the load of the eddy current separator 15 when working, at the same time, avoid damage to the parts inside the eddy current separator 15 by dust.

[0059] Embodiment six: refer to Figures 1-15 , the output end of the bottom of the eddy current separator 15 is arranged towards the guide plate 19.

[0060] The principle and beneficial effects of the above scheme are:

[0061] The sorted copper and aluminum are discharged from the output end of the eddy current separator 15 to the guide plate 19, and can be classified and recycled by using a hopper or other storage device through the guidance of the guide plate 19, and then subjected to secondary processing.

[0062] Embodiment seven: refer to Figures 1-15 , the dust removal mechanism 3 includes: a pulse dust collector 20, a total air pipe 21, a filter 22, a total air blower 23, a total waste gas return pipe 24 and an auxiliary waste gas return pipe 25, the other ends of the waste gas exhaust pipe 5, the waste gas exhaust pipe two 8, the waste gas exhaust pipe three 10 and the waste gas exhaust pipe four 16 are connected with the total air pipe 21, the pulse dust collector 20 and the filter 22 are connected on the total air pipe 21, the other end of the total air pipe 21 is connected with the input end of the total air blower 23, the output end of the total air blower 23 is connected with the end of the total waste gas return pipe 24, the end of the auxiliary waste gas return pipe 25 is connected on the total waste gas return pipe 24, the other end of the auxiliary waste gas return pipe 25 is arranged away from the pulse dust collector 20, and the other ends of the waste gas return pipe 6, the waste gas return pipe two 11 and the waste gas return pipe three 17 are connected with the total waste gas return pipe 24.

[0063] The principle and beneficial effects of the above scheme are:

[0064] When the dust removing mechanism 3 is working, the dust and cyclopentane in the device enter into the total air pipe 21 through the waste gas exhaust pipe 5, the waste gas exhaust pipe two 8, the waste gas exhaust pipe three 10 and the waste gas exhaust pipe four 16, the negative pressure generated by the total air blower 23 facilitates the suction of the dust and cyclopentane, the cyclopentane is absorbed in the filter 22, the dust enters into the total waste gas return pipe 24 after sequentially passing through the pulse dust collector 20 and the filter 22 in the total air pipe 21, at this time, most of the treated waste gas connected with the total waste gas return pipe 24 is discharged through the auxiliary waste gas return pipe 25, and the rest of the treated waste gas is output through the waste gas return pipe 6, the waste gas return pipe two 11 and the waste gas return pipe three 17, which reduces the difficulty of waste gas treatment.

[0065] Embodiment eight: refer to Figures 1-15 The magnetic attraction mechanism comprises a mounting frame 26, a conveying belt 27, a roller shaft 28, a driving piece and a magnetic attraction assembly, the mounting frame 26 is connected to the conveying belt mechanism three 14, two roller shafts 28 are rotatably connected to the mounting frame 26, the end of one roller shaft 28 is connected to the output end of the driving piece, the driving piece is connected to the mounting frame 26, the magnetic attraction assembly is arranged on the mounting frame 26 and is arranged between the conveying belts 27, the inner wall of the conveying belt 27 is frictionally matched with the side wall of the two roller shafts 28, a plurality of auxiliary roller shafts 29 are rotatably connected to the mounting frame 26, and the side wall of the auxiliary roller shaft 29 is frictionally matched with the inner wall of the conveying belt 27.

[0066] The principle and beneficial effects of the above scheme are:

[0067] The metal scraps transported to the conveying belt mechanism three 14 through the vibrating feeder 13 contain iron scraps. In order to improve the recycling efficiency of the metal, a magnetic attraction mechanism is connected to the conveying belt mechanism three 14. The mounting frame 26 of the magnetic attraction mechanism is connected to the conveying belt mechanism three 14. When the iron needs to be recycled, the driving part and the magnetic attraction assembly are started. The driving part drives the roller shaft 28 to rotate. The roller shaft 28 drives another roller shaft 28 to rotate through the conveying belt 27. The magnetic attraction end of the magnetic attraction assembly is arranged towards the conveying belt mechanism three 14. Therefore, the iron scraps in the scraps are attracted to the bottom of the conveying belt 27. The iron scraps are moved to the top of the conveying belt 27 through the movement of the conveying belt 27. When the iron scraps move to the output end of the magnetic attraction mechanism, they are uniformly collected. Not only can the recycling efficiency of the iron scraps be improved, but also the iron scraps can be prevented from entering the eddy current separator 15. Since the eddy current separator 15 cannot sort the iron scraps, the iron scraps entering the eddy current separator 15 will accumulate inside the eddy current separator 15. Therefore, the iron scraps are separated in the conveying belt mechanism three 14 in advance. The internal parts of the eddy current separator 15 can be prevented from being damaged during work. The iron scraps can be prevented from accumulating in the eddy current separator 15 to cause blockage. The sorting and recycling of copper and aluminum scraps can be improved. The rationality of the device setting is improved. The device can work in a safe state. The device can be maintained and repaired during frequent shutdown. The working efficiency of the device is further improved.

[0068] Embodiment nine: Figures 1-15 The magnetic attraction assembly comprises an outer shell 30, an iron core column 31, an air inlet pipe 32, and an air outlet pipe 33. The mounting frame 26 is connected with the outer shell 30. The outer shell 30 is connected with a plurality of iron core columns 31 on the bottom wall. Each iron core column 31 is sleeved with a coil. The outer shell 30 is connected with the air inlet pipe 32 on one side. The outer shell 30 is connected with the end of the air outlet pipe 33 on the other side. The other end of the air outlet pipe 33 is arranged towards the output end of the conveying belt 27. The output end of the conveying belt 27 is arranged towards the top opening of the guide pipe 34. The bottom opening of the guide pipe 34 is arranged away from the mounting frame 26. The air inlet pipe 32 is connected with the air pump 36. The output shaft 37 of the air pump 36 is connected with the belt pulley 38. The belt pulley 38 is drivingly connected with the belt pulley two 40 through the belt 39. The belt pulley two 40 is connected with one auxiliary roller shaft 29.

[0069] The mounting frame 26 is connected with the driving motor 41. The output shaft two of the driving motor 41 is connected with the sprocket 42. The sprocket 42 is drivingly connected with the sprocket two 44 through the chain 43. The sprocket two 44 is connected with the end of one roller shaft 28.

[0070] The principle and advantages of the above scheme are:

[0071] When the sorting of iron filings needs to be carried out, the electromagnetic field needs to be used, so the shell 30 is connected on the mounting frame 26 to install the iron core column 31, and after the iron core column 31 is installed, the coil is wound thereon, and after the coil is powered on, the electromagnetic field will be generated below the mounting frame 26 for magnetic attraction of the iron filings;

[0072] The coil will generate heat during operation, so the air inlet pipe 32 is connected on one side of the shell 30, and the air outlet pipe 33 is connected on the other side to generate air flow in the interior of the shell 30, thereby achieving cooling of the coil. Since the coil is often wrapped with insulating paint or mica insulating material, and the above-mentioned material has a heat resistance upper limit, the damage of the insulating material caused by the high temperature of the coil or the iron core can be prevented;

[0073] The function of cooling at the same time can maintain the stability of the magnetic field, thereby ensuring that the magnetic force is stable when the iron filings are magnetically attracted, avoiding the falling of the iron filings or the inability to magnetically attract, and further avoiding the accumulation of the iron filings in the eddy current sorting machine 15;

[0074] The shell 30 cooperates with the conveying belt 27, and the attenuation of the electromagnetic field needs to be considered, so the conveying belt 27 can be made of nitrile rubber material with static magnetic field penetration ability. The thickness of the conveying belt 27 can be set based on the actual design requirements, so that the device has low production difficulty and high efficiency. The shell 30 is arranged in the middle of the annular conveying belt 27, and the bottom wall with the iron core column 31 is arranged towards the bottom of the conveying belt 27 and the other roller 28, so that during the movement of the conveying belt 27, the iron filings are moved to the top of the conveying belt 27 synchronously, and finally collected through the guide pipe 34;

[0075] The conveying belt mechanism three 14 conveys the metal scraps and iron scraps when working, and the coil of the shell 30 generates a magnetic field to magnetically attract and separate the iron scraps. To prevent the iron scraps from accumulating on the conveying belt 27, the driving motor 41 is started, the output end drives the chain wheel 42 to rotate, the chain wheel two 44 is driven to rotate through the chain 43, one roller 28 rotates, and the conveying belt 27 moves under the cooperation of the other roller 28 and the auxiliary roller 29. In the process of magnetically attracting and separating the iron scraps, the iron scraps are conveyed synchronously. When the iron scraps move to the top of the conveying belt 27, the magnetic field acting on the iron scraps disappears, so that the iron scraps are output at the output end of the conveying belt 27, and the pulley two 40 on the auxiliary roller 29 rotates synchronously. The auxiliary roller 29 drives the pulley 38 to rotate through the belt 39, the pulley 38 drives the output shaft 37 of the air pump 36 to rotate, air enters the inside of the shell 30 from the air inlet pipe 32 to cool the coil working, then the air is output through the air outlet pipe 33 to increase the heat dissipation effect in the mechanism. The hot air is discharged through the output end of the air outlet pipe 33, and blows the output end of the conveying belt 27, thereby preventing fine iron scraps from adhering to the conveying belt 27, and further improving the cleaning effect of the mechanism on the iron scraps. Since the shell 30 is located above the conveying belt mechanism three 14, and the output end of the conveying belt 27 is arranged, when the air outlet pipe 33 discharges hot air to the conveying belt 27, it will not cause the temperature of the shell 30 to rise, thereby avoiding the decrease of the cooling effect of the coil. The conveying belt 27 blown by hot air will contact the air with relatively low temperature in the environment during moving below the shell 30, thereby realizing the cooling of the conveying belt 27, preventing the heat of the conveying belt 27 from heating the shell 30 after moving below the shell 30, and further avoiding the decrease of the heat dissipation effect of the shell 30.

[0076] Embodiment ten: with reference to Figures 1-15 The air inlet pipe 32 is connected with a filter screen 45, the filter screen 45 is arranged between the air inlet end of the air inlet pipe 32 and the air pump 36, and a plurality of speed regulating pieces are linearly arranged on the output shaft 37.

[0077] The speed regulating part comprises a mounting plate 46, a plurality of mounting plates 46 are circumferentially arranged on the output shaft 37, the bottom wall of the sliding groove of the mounting plate 46 is connected with the bottom of the spring 47, the top of the spring 47 is connected with the bottom of the mounting plate two 48, the mounting plate two 48 is slidingly connected with the sliding groove, the top of the mounting plate two 48 is connected with the bottom of the driving arc 49, a plurality of driving arcs 49 are arranged at an angle on the straight line array, the top of the driving arc 49 is arranged towards the end face of the adjusting plate 50, the adjusting plate 50 is connected with the end of the connecting rod 51, the connecting rod 51 is slidingly connected with the adjusting pipe 52, the adjusting pipe 52 is connected with the air inlet pipe 32, the end of the connecting rod 51 in the adjusting pipe 52 is connected with the end of the mounting column 53, the mounting column 53 is slidingly sealed with the adjusting pipe 52, the mounting column 53 is provided with a gas guide hole 54 penetrating therethrough, the gas guide hole 54 is staggered with the air inlet pipe 32, and the other end of the mounting column 53 is connected with the inner wall of the adjusting pipe 52 through the spring two 55.

[0078] The principle and beneficial effects of the above scheme are:

[0079] When the shell 30 sucks the air, the filter screen 45 arranged on the air inlet pipe 32 can intercept the dust and impurities in the air, so as to avoid the dust entering the shell 30, thereby avoiding the structural overheating caused by the decline of the heat dissipation effect of the coil, further avoiding the aging of the insulating material and the decline of the magnetic attraction performance.

[0080] The volume of the metal scraps conveyed on the conveying belt mechanism three 14 is different, so the magnetic attraction speed of the iron scraps is different. When the proportion of the iron scraps is high, the moving speed of the conveying belt 27 is fast at the same time, and the magnetic field output by the shell 30 is increased, so as to prevent the phenomenon of unstable magnetic attraction and falling of the iron scraps. Due to the increase of the magnetic field, the current of the coil is increased, and the heat is further increased. At this time, the rotating speed of the output shaft 37 is increased, and the air flow rate into the shell 30 is increased at the same time. At the same time, the mounting plate 46 rotates with the output shaft 37. Under the action of the centrifugal force, the mounting plate two 48 drives the driving arc 49 to move away from the output shaft 37, and the length of the spring 47 is increased. When the driving arc 49 contacts the adjusting plate 50, the adjusting plate 50 drives the connecting rod 51 to move into the adjusting pipe 52, the mounting column 53 is synchronously moved to compress the spring two 55, and the conduction area of the gas guide hole 54 and the air inlet pipe 32 is increased. At this time, the air flow rate in the air inlet pipe 32 is increased. At this time, the sudden increase of the air volume in the shell 30 can be avoided, the instantaneous rise of the internal air pressure of the structure is avoided, the shell 30 is prevented from vibrating, and the conveying belt 27 is prevented from vibrating, so as to prevent the phenomenon of falling of the iron scraps after magnetic attraction.

[0081] The shell 30, the air inlet pipe 32 and the air outlet pipe 33 can also be prevented from being damaged due to the instantaneous rise of the air pressure exceeding the structural design load, and the service life of the structure is prolonged.

[0082] When the air output of the air pump 36 increases, the increase of the conduction area of the air inlet pipe 32 and the air guide hole 54 can not only avoid the vibration of the output end of the air outlet pipe 33 caused by vibration, so as to prevent the output end from accurately outputting air to the conveying belt 27, resulting in the residual of fine iron filings, but also avoid the cracking of the pipeline structure;

[0083] Under the action of centrifugal force, the faster the rotation speed of the output shaft 37 is, the longer the moving distance of the driving arc 49 is, and the longer the moving distance of the adjusting plate 50 is, and the larger the conduction area of the air inlet pipe 32 is, thereby improving the self-adjusting ability of the mechanism;

[0084] When the rotation speed of the output shaft 37 decreases, under the action of the elastic force of the spring 47 and the sliding fit of the mounting plate 46, the mounting plate two 48 drives the driving arc 49 to reset, and after the driving arc 49 ends the contact with the adjusting plate 50, under the action of the reset elastic force of the spring two 55, the connecting rod 51 and the mounting column 53 are reset synchronously, the conduction area of the air guide hole 54 and the air inlet pipe 32 is reduced, and the occurrence of the structure surge can be avoided;

[0085] Since the output shaft 37 is provided with a plurality of speed regulating pieces in a straight line, the mounting plate 46 arranged in a circular array in each speed regulating piece is arranged on the output shaft 37, and the mounting plates 46 in the axial direction of the output shaft 37 are arranged at an angle, so that the driving arcs 49 in the axial direction of the output shaft 37 are arranged at an angle, and the driving arcs 49 move to the adjusting plate 50 under the action of centrifugal force, so that the driving arcs 49 in the circumferential direction of the output shaft 37 are spaced apart, at this time, the driving arcs 49 in the axial direction of the output shaft 37 supplement the spacing, so as to avoid the vibration of the adjusting plate 50 pushed during work, and thereby ensure the stability of the air flow in the air inlet pipe 32 when the air output of the air pump 36 changes.

[0086] Embodiment eleven: Figures 1-15 The air inlet pipe 32 is connected with a gas storage pipe 56, the input end of the gas storage pipe 56 is arranged towards the output end of the air pump 36, the gas storage pipe 56 is connected with a gas storage tank 57, the gas storage pipe 56 is in sliding seal with the inner wall of a piston ring 58, the side wall of the piston ring 58 is in sliding seal with the inner wall of the gas storage tank 57, the other end of the gas storage pipe 56 is arranged between the end face of the piston ring 58 and the inner wall of the gas storage tank 57, and the other end face of the piston ring 58 is connected with the inner wall of the gas storage tank 57 through a spring three 59.

[0087] The principle and beneficial effects of the above scheme are:

[0088] When the mechanism is dissipating heat, the air in the air inlet pipe 32 enters the air storage pipe 56 and is then stored in the air storage tank 57. When the internal air volume of the air storage tank 57 increases, the piston ring 58 moves towards the air inlet pipe 32, and the spring three 59 is compressed. When the spring three 59 is compressed and the air pressure in the air storage pipe 56 is equal, the piston ring 58 remains stationary. When the air pump 36 stops working, the air storage pipe 56 stops outputting air. Under the elastic force of the spring three 59, the piston ring 58 moves away from the air inlet pipe 32, and the air in the air storage tank 57 is released. The air enters the filter screen 45 through the air storage pipe 56 and reversely blows the dust accumulated on the filter screen 45 in the working process. The dust is discharged through the input end of the air inlet pipe 32, which not only ensures the passability of the filter screen 45, but also avoids manual cleaning.

[0089] Embodiment twelve: with reference to Figures 1-15 The mounting frame 26 is connected with the connecting rod two 35, the bottom of the connecting rod two 35 is connected with the top end of a plurality of rubber sheets 66, and the bottom end of the rubber sheet 66 is in frictional fit with the output end of the conveying belt 27.

[0090] The principle and advantages of the above scheme are:

[0091] The mounting frame 26 is connected with the top end of the rubber sheet 66 through the connecting rod two 35, and the bottom end of the rubber sheet 66 can clean the output end of the conveying belt 27.

[0092] Although the embodiments of the present application have been disclosed as above, they are not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. Those skilled in the art can easily make other modifications, and therefore the present application is not limited to the specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A dust removal fresh air circulation system of a refrigerator recycling line, characterized in that, The utility model relates to a waste gas recycling device and a waste gas recycling method. The waste gas recycling device comprises a conveying belt mechanism, a double-shaft shredder, a dust removal mechanism, a waste gas exhaust pipe, a waste gas return pipe, a vibrating feeder, a vertical crusher, a magnetic attraction mechanism, a shell, a plurality of iron core columns, a plurality of coils, an air inlet pipe, an air outlet pipe, a guide pipe, a wind pump, a plurality of speed regulating members, a mounting plate, a spring, a mounting column, and an air guide hole. The output end of the double-shaft shredder is connected to the end of the waste gas exhaust pipe, the other end of the waste gas exhaust pipe is connected to the dust removal mechanism, the end of the dust removal mechanism is connected to the end of the waste gas return pipe, and the output end of the waste gas return pipe is arranged towards the input end of the second conveying belt mechanism. The output end of the dust removal mechanism is connected to the end of the second waste gas return pipe, and the output end of the second waste gas return pipe is arranged towards the input end of the vibrating feeder. The output end of the vibrating feeder is arranged towards the input end of the third conveying belt mechanism. The third conveying belt mechanism is connected to the magnetic attraction mechanism. The magnetic attraction mechanism comprises a mounting frame, two roller shafts, a driving member, a magnetic attraction assembly, a plurality of auxiliary roller shafts, and a plurality of speed regulating members. The magnetic attraction assembly comprises a shell, a plurality of iron core columns, a plurality of coils, an air inlet pipe, an air outlet pipe, a guide pipe, a wind pump, a belt pulley, a belt, a second belt pulley, and a second auxiliary roller shaft. The output shaft is linearly connected to the plurality of speed regulating members.

2. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 1, characterized in that, The speed regulating member comprises a mounting plate, a spring, a mounting column, and an air guide hole.

3. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 1, characterized in that, The waste gas return pipe is connected to a shaft fan.

4. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 1, characterized in that, The waste gas recycling device further comprises a second waste gas exhaust pipe.

5. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 4, characterized in that, The output end of the second conveying belt mechanism is arranged towards the input end of the vertical crusher. The top of the vertical crusher is connected to the input end of a third waste gas exhaust pipe, the other end of the third waste gas exhaust pipe is connected to the dust removal mechanism, the bottom of the vertical crusher is connected to the end of a foam waste gas exhaust pipe, the foam waste gas exhaust pipe is connected to a sorting machine and an auxiliary fan, and the other end of the foam waste gas exhaust pipe is connected to a collecting hopper. The second waste gas return pipe is connected to a second shaft fan.

6. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 4, characterized in that, The output end of the third conveying belt mechanism is arranged towards the input end of the eddy current sorting machine, the eddy current sorting machine is connected with the input end of the waste gas exhaust pipe four, the other end of the waste gas exhaust pipe four is connected on the sorting machine, the eddy current sorting machine is connected with the input end of the waste gas return pipe three, the other end of the waste gas return pipe three is connected with the dust removal mechanism, and the waste gas return pipe three is connected with the shaft fan three.

7. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 6, characterized in that, The output end of the bottom of the eddy current sorting machine is arranged towards the guide plate.

8. The dust removal fresh air circulation system of a refrigerator recycling line according to claim 6, characterized in that, The dust removal mechanism comprises a total air pipe, the other end of the waste gas exhaust pipe, the waste gas exhaust pipe two, the waste gas exhaust pipe three and the waste gas exhaust pipe four are connected with the total air pipe, the total air pipe is connected with the pulse dust collector and the filter, the other end of the total air pipe is connected with the input end of the total fan, the output end of the total fan is connected with the end of the total waste gas return pipe, the end of the auxiliary waste gas return pipe is connected on the total waste gas return pipe, the other end of the auxiliary waste gas return pipe is arranged away from the pulse dust collector, and the other end of the waste gas return pipe, the waste gas return pipe two and the waste gas return pipe three are connected with the total waste gas return pipe.

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