Self-circulation specific gravity separator

Abstract

The utility model relates to the technical field of sorting machines, in particular to a self-circulation specific gravity sorting machine which comprises a base and a sorting base body arranged on the base. The base is provided with a control cabinet, a sorting device used for sorting heavy particles and light particles, a draught fan used for assisting sorting of the light particles, an air draft mechanism used for extracting dust raised by the draught fan, a dust removal box used for filtering air and an air inlet pipeline used for guiding purified air in the dust removal box into a second air inlet of the draught fan. The draught fan and the sorting device are arranged in the sorting base body, heavy particles and light particles can be effectively separated through the sorting device by operating the control cabinet, meanwhile, the draught fan can assist the light particles in sorting and moving, the air draft mechanism can introduce extracted air into the dust removal box for filtering, and the dust removal effect is improved. And the purified air enters the second air inlet of the fan through the air inlet pipeline, so that the extraction amount of the fan to the outside air is reduced, and cyclic utilization of the air in the sorting base body is realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sorting machines, in particular to a self-circulation specific gravity sorting machine. BACKGROUND

[0002] With the attention of the country to resource utilization and environmental protection, the recycling of waste materials is gradually refined, which puts forward higher requirements for sorting and utilization. The workers pour the mixture of heavy particles and light particles into the sorting base body, and realize the separation of the heavy particles and the light particles under the action of the fan and the vibrating screen in the sorting main body.

[0003] The sorting machine on the market comprises a sorting base body, a fan and a vibrating screen arranged in the sorting base body. In the actual sorting process, an air extraction device for extracting dust inside the sorting base body, a filtering device for filtering dust and an exhaust device for exhausting filtered air are further arranged.

[0004] The workers pour the mixture into the sorting base body, and the dust and small particles in the material are blown up under the action of the fan. Then, the dust inside the sorting base body is sucked away and transferred to the filtering device for filtering under the action of the air extraction device. The filtered air is exhausted from the sorting machine. The fan needs to continuously extract air from the outside, so that the power consumption of the sorting machine is large, and there is room for improvement. CONTENT OF THE INVENTION

[0005] In order to realize the recycling of wind energy, the application provides a self-circulation specific gravity sorting machine.

[0006] The self-circulation specific gravity sorting machine provided by the application adopts the following technical scheme:

[0007] The self-circulation specific gravity sorting machine comprises a base and a sorting base body, the sorting base body is arranged on the base, the base is provided with a control cabinet, a dust removal tank, a sorting device for sorting heavy particles and light particles, a fan for assisting the movement of light particles, an air extraction mechanism for extracting dust blown up by the fan, and an air inlet pipeline for guiding the purified air in the dust removal tank into the second air inlet of the fan, the sorting device and the fan are arranged in the sorting base body respectively, and the air extraction mechanism and the air inlet pipeline are arranged between the sorting base body and the dust removal tank.

[0008] By adopting the technical scheme, the operation control cabinet enables the sorting device to effectively separate the heavy particles and the light particles, and meanwhile, the fan is used to assist the sorting and movement of the light particles, which also helps the air extraction mechanism to extract the dust raised by the fan, the air extraction mechanism can introduce the extracted air into the dust removal box for filtration, and the purified air is guided back to the second air inlet of the fan through the air inlet pipeline, so as to reduce the extraction amount of the fan to the external air, realize the recycling of the air in the sorting base, and further reduce the energy loss.

[0009] Preferably, the sorting device comprises a vibrating screen arranged obliquely and a driving mechanism for driving the vibrating screen to vibrate perpendicularly to the slope, the air outlet of the fan is arranged perpendicularly to the oblique direction of the vibrating screen, the sorting base is provided with a feeding port, a heavy particle discharge port and a light particle discharge port, the feeding port is arranged above the vibrating screen, the height of the heavy particle discharge port is higher than that of the light particle discharge port, one end of the vibrating screen is connected with the heavy particle discharge port, and the other end of the vibrating screen is connected with the light particle discharge port.

[0010] By adopting the technical scheme, the heavy particles and the light particles enter the vibrating screen from the feeding port, the vibrating screen is driven by the driving mechanism to vibrate up and down perpendicularly to the slope, so that the heavy particles gradually climb along the vibrating screen to the heavy particle discharge port and are discharged through the heavy particle discharge port, and the light particles gradually slide along the vibrating screen to the light particle discharge port and are discharged through the light particle discharge port, and meanwhile, the air outlet of the fan is arranged perpendicularly to the oblique direction of the vibrating screen, so that the light particles float from the vibrating screen under the action of the wind, thereby realizing the separation from the heavy particles, and the light particles are more easily affected by the wind and slide into the light particle discharge port.

[0011] Preferably, the sorting base is provided with a wind guide plate for guiding the air outlet direction of the fan, and the guiding direction of the wind guide plate is arranged perpendicularly to the oblique direction of the vibrating screen.

[0012] By adopting the technical scheme, the wind guide plate can guide the air outlet direction of the fan, so that the light particles are more evenly affected by the wind and float and separate from the heavy particles, thereby improving the sorting effect, and the wind guide plate can also reduce the waste of wind energy and improve the use efficiency of the fan.

[0013] Preferably, the driving mechanism comprises a rotating shaft, a cam, a driving unit for driving the rotating shaft to rotate and a telescopic structure for guiding the telescopic movement of the vibrating screen, the cam is fixedly arranged on the rotating shaft, the rotating shaft is rotatably connected inside the sorting base, the cam is in abutting cooperation with the vibrating screen, the driving unit and the telescopic structure are arranged on the wind guide plate, one side of the telescopic structure away from the wind guide plate is fixedly connected with the vibrating screen, and the telescopic direction of the telescopic structure is arranged perpendicularly to the oblique direction of the vibrating screen.

[0014] By adopting the technical scheme, the driving unit drives the rotating shaft to rotate, thereby driving the cam on the rotating shaft to rotate, the rotation of the cam can drive the vibrating screen to vibrate up and down, and the stretching and retracting structure is arranged to guide the vibrating screen, and the stretching and retracting direction of the stretching and retracting structure is perpendicular to the tilting direction of the vibrating screen, so that the vibrating screen can vibrate up and down along the direction perpendicular to the tilting direction of the vibrating screen, which is helpful to realize the separation of heavy particles and light particles on the vibrating screen.

[0015] Preferably, the stretching and retracting structure comprises a stretching and retracting rod and a mounting seat, the stretching and retracting rod is slidingly arranged on the mounting seat, the mounting seat is arranged on the air guide plate in a tilting manner, the stretching and retracting rod is fixedly connected with the vibrating screen, and the tilting direction of the mounting seat is the same as the guiding direction of the air guide plate.

[0016] By adopting the technical scheme, the stretching and retracting rod can guide the vibrating direction of the vibrating screen when the vibrating screen vibrates, so that the vibrating operation of the vibrating screen is more stable and efficient, and the separation between heavy particles and light particles on the vibrating screen is facilitated.

[0017] Preferably, the mounting seat is provided with a mounting groove, the stretching and retracting rod is slidingly arranged in the mounting groove, the mounting groove of the mounting seat is provided with a stretching and retracting spring, one end of the stretching and retracting spring is in abutting cooperation with the stretching and retracting rod, and the other end of the stretching and retracting spring is in abutting cooperation with the mounting seat.

[0018] By adopting the technical scheme, the stretching and retracting spring can provide support and buffering effect for the stretching and retracting rod, reduce the impact and wear of the stretching and retracting rod in the vibrating process, avoid hard collision between the stretching and retracting rod and the mounting seat, and prolong the service life of the stretching and retracting rod and the mounting seat.

[0019] Preferably, the dust removal box is internally provided with a guide channel for connecting the air extraction mechanism, a filter frame for filtering the extracted air, and a filter box for communicating with the air inlet pipeline, and the filter frame is arranged between the guide channel and the filter box.

[0020] By adopting the technical scheme, the air extracted from the sorting base by the air extraction mechanism enters the filter frame through the guide channel for filtering, so that the dust and impurities in the extracted air are effectively filtered, the air filtered from the filter frame enters the air inlet pipeline through the filter box, so that the fan in the sorting base can be used again for secondary extraction, and the utilization rate of energy is improved.

[0021] Preferably, the bottom of the dust removal box is provided with a dust storage drawer for storing dust, and the dust storage drawer is arranged below the filter box.

[0022] By adopting the technical scheme, the dust storage drawer is arranged to conveniently collect and store dust, and the dust storage drawer is designed to facilitate cleaning by the staff, thereby improving the ease of use and maintainability of the equipment.

[0023] Preferably, the filter frame comprises an upper filter screen, a lower filter screen and a connecting spring for connecting the upper filter screen and the lower filter screen, and a vibration motor is fixedly arranged on the filter frame to drive the filter frame to vibrate dust.

[0024] By adopting the technical scheme, the upper filter screen and the lower filter screen are arranged to improve the filtering effect; after the sorting operation is completed, the filter box in the dust removal box is removed, and the vibration motor is arranged to drive the filter frame to vibrate as a whole at a high frequency, so that the dust and impurities attached to the upper filter screen and the lower filter screen are vibrated into the dust storage drawer, facilitating cleaning of the upper filter screen and the lower filter screen by the staff; and the connecting spring is arranged to buffer the vibration wear of the upper filter screen and the lower filter screen during vibration, thereby prolonging the service life of the upper filter screen and the lower filter screen.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The sorting device can effectively separate heavy particles and light particles by operating the control cabinet, and the fan can assist in sorting and moving light particles, which also helps the air suction mechanism to extract the dust raised by the fan, the air suction mechanism can introduce the extracted air into the dust removal box for filtration, and the purified air is guided back to the second air inlet of the fan through the air inlet pipeline, thereby reducing the amount of air extracted by the fan from the outside air, realizing the recycling of air in the sorting base, and further reducing the energy consumption;

[0027] 2. The heavy particles and light particles are mixed and enter the vibrating screen from the feed inlet, the vibrating screen is driven by the driving mechanism to vibrate vertically on the inclined surface, so that the heavy particles gradually climb along the vibrating screen to the heavy particle discharge outlet and are discharged through the heavy particle discharge outlet, and the light particles gradually slide along the vibrating screen to the light particle discharge outlet and are discharged through the light particle discharge outlet, and the outlet of the fan is arranged vertically to the inclined direction of the vibrating screen, so that the light particles float from the vibrating screen under the action of the wind, thereby realizing separation from the heavy particles, and the light particles are more easily affected by the wind and slide into the light particle discharge outlet.

[0028] 3. With the setting of the upper filter screen and the lower filter screen, the double-layer filtering design helps to improve the filtering effect; after the sorting operation is completed, the filter box in the dust removal box is taken out, and the vibration motor is used to drive the filter frame to vibrate as a whole at high frequency, so that the dust and impurities attached to the upper filter screen and the lower filter screen are vibrated into the dust storage drawer, and the upper filter screen and the lower filter screen are cleaned; at the same time, the setting of the connecting spring can buffer the vibration wear of the upper filter screen and the lower filter screen during the vibration process, thereby prolonging the service life of the upper filter screen and the lower filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the shaft measurement schematic diagram mainly embodying the overall structure in the embodiment of the application;

[0030] Figure 2 is the structural schematic diagram mainly embodying the internal structure of the sorting base in the embodiment of the application;

[0031] Figure 3 is Figure 2 is the local enlarged view mainly embodying the driving mechanism in the embodiment of the application;

[0032] Figure 4 is the local explosion view mainly embodying the telescopic structure in the embodiment of the application;

[0033] Figure 5 is the structural schematic diagram mainly embodying the internal structure of the dust removal box in the embodiment of the application;

[0034] Figure 6 is Figure 2 is the local enlarged view mainly embodying the connection relationship between the filter frame and the vibration motor in the embodiment of the application.

[0035] Mark No. : 1, base; 2, sorting base body; 21, air guide plate; 211, mounting plate; 22, feed inlet; 23, heavy particle discharge outlet; 24, light particle discharge outlet; 25, fixing plate; 251, adapter hole; 3, control cabinet; 4, dust removal box; 41, filtering unit; 411, guide channel; 412, filter frame; 4121, upper layer filter screen; 4122, lower layer filter screen; 4123, connecting spring; 4124, connecting plate; 4125, vibration motor; 413, filter box; 42, dust storage drawer; 43, door plate; 5, sorting device; 51, vibrating screen; 52, driving mechanism; 521, rotating shaft; 522, cam; 523, driving unit; 5231, driving motor; 5232, driving wheel; 5233, driven wheel; 5234, conveyor belt; 524, telescopic structure; 5241, telescopic rod; 5242, mounting seat; 5243, mounting groove; 5244, telescopic spring; 53, heavy particle receiving barrel; 54, light particle receiving barrel; 6, air blower; 61, first air inlet; 62, second air inlet; 7, air extraction mechanism; 71, air extractor; 72, air extraction pipeline; 8, air inlet pipeline. DETAILED DESCRIPTION

[0036] The above description is made in conjunction with the accompanying drawings. Figure 1 - the accompanying drawings Figure 6 The application is further described in detail.

[0037] The embodiment of the application discloses a self-circulation specific gravity sorting machine.

[0038] Referring to the drawings Figure 1 and Figure 2 A self-circulation specific gravity sorting machine, comprising a base 1 and a sorting base body 2, the sorting base body 2 is threadedly connected to the base 1, and a control cabinet 3 and a dust removal box 4 are also threadedly connected to the base 1, the sorting base body 2 is internally provided with a sorting device 5 for sorting heavy particles and light particles and an air blower 6 for assisting the movement of small particles, the sorting device 5 is arranged above the air blower 6, the air blower 6 is provided with a first air inlet 61 and a second air inlet 62, the first air inlet 61 is in communication with the air outside, and an air extraction mechanism 7 for extracting dust raised by the air blower 6 and an air inlet pipeline 8 for guiding purified air in the dust removal box 4 to enter the second air inlet 62 of the air blower 6 are arranged between the sorting base body 2 and the dust removal box 4, and the dust removal box 4 is used for filtering the air extracted by the air extraction mechanism 7, so that the air in the sorting base body 2 is recycled.

[0039] Referring to the drawings Figure 1 Since the sorting base body 2, the dust removal box 4, the air extraction mechanism 7 and the air inlet pipeline 8 are compactly arranged above the base 1, the overall structure is compact and occupies a small area, and multiple functions are integrated, thereby improving the practicability of the specific gravity sorting machine.

[0040] Referring to the drawingsFigure 2 And Figure 3 The sorting device 5 comprises a vibrating screen 51 arranged obliquely and a driving mechanism 52 for driving the vibrating screen 51 to vibrate vertically to the slope, and the fan 6 is bolted to the base 1, and the air outlet of the fan 6 is arranged vertically to the oblique direction of the vibrating screen 51.

[0041] Referring to Figure 2 And Figure 3 The sorting base 2 is welded with an air guide plate 21 for further guiding the air direction of the fan 6, the air guide plate 21 is arranged above the fan 6, and the guiding direction of the air guide plate 21 is arranged vertically to the oblique direction of the vibrating screen 51, so that the light particles can be more uniformly affected by the wind force to float up and separate from the heavy particles, thereby improving the sorting effect, and the air guide plate 21 can also reduce the waste of wind energy and improve the use efficiency of the fan 6.

[0042] Referring to Figure 2 And Figure 4 The sorting base 2 is provided with a feeding port 22, a heavy particle discharge port 23 and a light particle discharge port 24, the feeding port 22 is arranged above the vibrating screen 51 close to the heavy particle discharge port 23, so that the heavy particles and the light particles can mix and fall from the feeding port 22 to the vibrating screen 51.

[0043] Referring to Figure 2 And Figure 4 The height of the heavy particle discharge port 23 is higher than that of the light particle discharge port 24, one end of the vibrating screen 51 is connected with the heavy particle discharge port 23, the other end of the vibrating screen 51 is connected with the light particle discharge port 24, and the sorting base 2 is respectively provided with a heavy particle receiving barrel 53 for receiving the heavy particles and a light particle receiving barrel 54 for receiving the light particles on both sides, the heavy particle receiving barrel 53 is arranged below the heavy particle discharge port 23, and the light particle receiving barrel 54 is arranged below the light particle discharge port 24.

[0044] Referring to Figure 2 And Figure 4 By controlling the driving mechanism 52 to drive the vibrating screen 51 to vibrate vertically to the slope, the heavy particles gradually climb along the vibrating screen 51 to the heavy particle discharge port 23 and slide into the heavy particle receiving barrel 53, and the light particles gradually slide along the vibrating screen 51 to the light particle discharge port 24 and slide into the light particle receiving barrel 54, and the air outlet of the fan 6 is arranged vertically to the oblique direction of the vibrating screen 51, so that the light particles float up from the vibrating screen 51 under the action of the wind, thereby realizing the separation from the heavy particles, and the light particles are more easily affected by the wind and slide into the light particle receiving barrel 54 through the light particle discharge port 24.

[0045] Referring to Figure 2 And Figure 3The driving mechanism 52 comprises a rotating shaft 521, a cam 522, a driving unit 523 for driving the rotating shaft 521 to rotate, and a telescopic structure 524 for guiding the vibration screen 51 to extend and retract. Symmetrical fixing plates 25 are welded on the sorting base 2. Each fixing plate 25 is provided with an adaptive hole 251. The two ends of the rotating shaft 521 are rotatably connected in the adaptive holes 251. The cam 522 is fixedly arranged on the rotating shaft 521. In this embodiment, two cams 522 are arranged. Each cam 522 is welded on the rotating shaft 521. Each cam 522 abuts against the lower surface of the vibration screen 51.

[0046] With reference to Figure 2 and Figure 3 The driving unit 523 and the telescopic structure 524 are arranged on the air guide plate 21. The driving unit 523 comprises a driving motor 5231, a driving wheel 5232, a driven wheel 5233, and a transmission belt 5234. The driving motor 5231 is threadedly connected to the air guide plate 21. The output shaft of the driving motor 5231 is coaxially fixed to the driving wheel 5232. The driven wheel 5233 is coaxially fixed to the rotating shaft 521. The transmission belt 5234 is synchronously arranged around the driving wheel 5232 and the driven wheel 5233.

[0047] With reference to Figure 2 and Figure 3 The telescopic structure 524 is provided with four telescopic structures 524. Each telescopic structure 524 is fixedly connected to the vibration screen 51 away from the air guide plate 21. In this embodiment, the air guide plate 21 is threadedly connected to the mounting plate 211 for mounting the telescopic structure 524. The mounting plate 211 is provided with two mounting plates 211. Each mounting plate 211 is arranged in parallel with the vibration screen 51. Each telescopic structure 524 is fixedly arranged on the mounting plate 211. Any two telescopic structures 524 are arranged on the same mounting plate 211.

[0048] With reference to Figure 2 and Figure 3 Since the structures and connection modes of the four telescopic structures 524 are the same, one of the telescopic structures 524 is taken as an example for illustration.

[0049] With reference to Figure 3 and Figure 4 The telescopic structure 524 comprises a telescopic rod 5241 and a mounting seat 5242. The telescopic rod 5241 telescopically slides on the mounting seat 5242. The mounting seat 5242 is arranged obliquely on the mounting plate 211. The mounting seat 5242 is threadedly connected to the mounting plate 211. The end of the telescopic rod 5241 away from the mounting seat 5242 is fixedly connected to the vibration screen 51. In this embodiment, the telescopic rod 5241 is welded to the vibration screen 51. The oblique direction of the mounting seat 5242 and the telescopic direction of the telescopic rod 5241 are perpendicular to the oblique direction of the vibration screen 51.

[0050] With reference to Figure 3 and Figure 4 , the telescopic rod 5241 and the mounting seat 5242 are arranged to guide the vibration direction of the vibrating screen 51 when the vibrating screen 51 is vibrating, so that the vibrating operation of the vibrating screen 51 is more stable and efficient, and the separation of heavy particles and light particles on the vibrating screen 51 is facilitated.

[0051] With reference to Figure 3 and Figure 4 , the mounting seat 5242 is provided with a mounting groove 5243, the telescopic rod 5241 is slidingly arranged in the mounting groove 5243, and the mounting groove 5243 of the mounting seat 5242 is provided with a telescopic spring 5244, one end of the telescopic spring 5244 is in abutting cooperation with the lower surface of the telescopic rod 5241, and the other end of the telescopic spring 5244 is in abutting cooperation with the mounting seat 5242. The telescopic spring 5244 can provide support and buffering effect for the telescopic rod 5241, reduce the impact and wear of the telescopic rod 5241 during vibration, avoid hard collision between the telescopic rod 5241 and the mounting seat 5242, thereby prolonging the service life of the telescopic rod 5241 and the mounting seat 5242.

[0052] With reference to Figure 3 and Figure 4 , in actual operation, the driving motor 5231 drives the driving wheel 5232 to rotate, so that the driving wheel 5232 drives the driven wheel 5233 and the rotating shaft 521 to rotate through the conveyor belt 5234, and further drives the cam 522 on the rotating shaft 521 to rotate. The rotation of the cam 522 can drive the vibrating screen 51 to vibrate up and down, and the telescopic rod 5241 is used to guide the vibrating screen 51, and the telescopic direction of the telescopic rod 5241 is perpendicular to the inclination direction of the vibrating screen 51, so that the vibrating screen 51 can vibrate up and down along the direction perpendicular to the inclination direction of the vibrating screen 51, which facilitates the separation of heavy particles and light particles on the vibrating screen 51.

[0053] With reference to Figure 1 and Figure 5 , the air extraction mechanism 7 is arranged above the sorting base body 2 and the dust removal box 4, and the air extraction mechanism 7 comprises an air extractor 71 and an air extraction duct 72. The second air inlet 62 of the air extractor 71 is in communication with the air extraction duct 72, and the end of the air extraction duct 72 away from the air extractor 71 is in communication with the inside of the sorting base body 2.

[0054] With reference to Figure 5 , the dust removal box 4 is provided with a plurality of filtering units 41 for filtering the extracted air. In this embodiment, the dust removal box 4 is provided with two filtering units 41. Since the structure and connection mode of the two filtering units 41 are the same, one of the filtering units 41 will be described as an example.

[0055] Referring to Figure 5 , the filtering unit 41 comprises a guide channel 411 for connecting the air outlet of the exhaust fan 71, a filter frame 412 for filtering the extracted air, and a filter box 413 for communicating with the air inlet duct 8, the filter frame 412 is arranged between the guide channel 411 and the filter box 413, the end of the guide channel 411 away from the exhaust fan 71 is threadedly connected with the filter frame 412, and the guide channel 411 communicates with the filter frame 412, the filter frame 412 is threadedly connected with the filter box 413, and the filter frame 412 communicates with the inside of the filter box 413.

[0056] Referring to Figure 5 , a dust storage drawer 42 for storing dust is slidably arranged at the bottom of the dust removal box 4, the dust storage drawer 42 is arranged below the filter box 413, the dust storage drawer 42 can conveniently collect and store dust, and the sliding design of the dust storage drawer 42 also facilitates the cleaning of the dust storage drawer 42 by the staff, thereby improving the ease of use and maintainability of the equipment.

[0057] Referring to Figure 1 , the dust removal box 4 is further provided with door plates 43 for facilitating the cleaning of the inside of the dust removal box 4 by the staff, the door plates 43 are symmetrically arranged in two, and any door plate 43 is rotationally connected to the dust removal box 4, so that the door plate 43 can facilitate the opening of the door plate 43 by the staff to maintain or clean the inside of the dust removal box 4 while isolating external dust from the dust removal box 4.

[0058] Referring to Figure 5 and Figure 6 , the filter frame 412 comprises upper filter screens 4121, lower filter screens 4122, and connecting springs 4123 for connecting the upper filter screens 4121 and the lower filter screens 4122, the connecting springs 4123 are installed at four corners of the filter frame 412, the upper end of any connecting spring 4123 is in abutting cooperation with the lower surface of the upper filter screen 4121, and the lower end of any connecting spring 4123 is in abutting cooperation with the upper surface of the lower filter screen 4122.

[0059] Referring to Figure 5 and Figure 6 , the two upper filter screens 4121 are commonly provided with a connecting plate 4124 and a vibration motor 4125 for driving the filter frame 412 to vibrate dust, the two sides of the connecting plate 4124 are threadedly connected to the upper filter screens 4121, respectively, and the vibration motor 4125 is threadedly connected to the connecting plate 4124, when the vibration motor 4125 works, the connecting spring 4123 can buffer the vibration wear of the upper filter screen 4121 and the lower filter screen 4122 during the vibration process, thereby prolonging the service life of the upper filter screen 4121 and the lower filter screen 4122.

[0060] Referring to Figure 5 and Figure 6 , the air is extracted from the sorting base 2 by the air extractor 71, and the extracted air sequentially passes through the air extraction pipe 72 and the guide channel 411 to enter the filter frame 412 for filtration. The upper filter screen 4121 and the lower filter screen 4122 of the filter frame 412 can effectively filter the dust and impurities in the extracted air. The air filtered from the filter frame 412 enters the air inlet pipe 8 through the filter box 413, so that the fan 6 in the sorting base 2 can be used for secondary extraction, thereby improving the utilization rate of energy.

[0061] Referring to Figure 5 and Figure 6 When the sorting operation is completed, the staff opens the door plate 43 and takes out the filter box 413 in the dust removal box 4, and uses the setting of the vibration motor 4125. The vibration motor 4125 can drive the filter frame 412 to vibrate as a whole at a high frequency, so that the dust and impurities attached to the upper filter screen 4121 and the lower filter screen 4122 are vibrated into the dust storage drawer 42, facilitating the staff to clean the upper filter screen 4121 and the lower filter screen 4122.

[0062] The implementation principle of the embodiment of the application is as follows: in actual operation, the staff operates the control cabinet 3 to start the driving motor 5231 to drive the vibrating screen 51 in the sorting base 2 to vibrate up and down, and simultaneously starts the fan 6 and the air extractor 71. Then the staff pours the mixture of heavy particles and light particles from the feed inlet 22 onto the vibrating screen 51 in the sorting base 2. The vibrating screen 51 vibrates up and down perpendicular to the inclined surface, and at the same time, the light particles float up from the vibrating screen 51 under the action of the wind force of the fan 6, so as to realize the separation from the heavy particles. Thus, the heavy particles gradually climb along the vibrating screen 51 to the heavy particle discharge outlet 23 and are discharged through the heavy particle discharge outlet 23, and the light particles gradually slide along the vibrating screen 51 to the light particle discharge outlet 24 and are discharged through the light particle discharge outlet 24.

[0063] The air extractor 71 extracts the air dust raised in the sorting base 2. The extracted air sequentially passes through the air extraction pipe 72 and the guide channel 411 to enter the filter frame 412 for filtration. The purified air is guided back to the second air inlet 62 of the fan 6 through the air inlet pipe 8, so as to reduce the extraction amount of the fan 6 to the external air, realize the recycling of the air in the sorting base 2, and further reduce the energy loss.

[0064] The above are preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the application should be covered by the protection scope of the application.

Claims

1. A self-circulating density separator, characterized by: The utility model relates to a kind of sorting device, including base (1) and sorting matrix (2), the sorting matrix (2) is arranged on base (1), control cabinet (3) is arranged on the base (1), dust removal tank (4), sorting device (5) for sorting heavy particles and light particles, fan (6) for assisting small particle sorting movement, air extraction mechanism (7) for extracting dust raised by fan (6) and air inlet duct (8) for guiding purified air in dust removal tank (4) into the second air inlet (62) of fan (6), the sorting device (5) is arranged above fan (6), and the sorting device (5) and fan (6) are arranged in sorting matrix (2) respectively, and air extraction mechanism (7) and air inlet duct (8) are arranged between sorting matrix (2) and dust removal tank (4) respectively.

2. A self-circulating density separator according to claim 1, characterised in that: The sorting device (5) includes a vibrating screen (51) arranged obliquely and a driving mechanism (52) for driving the vibrating screen (51) to vibrate perpendicular to the slope, the outlet of the fan (6) is arranged perpendicular to the oblique direction of the vibrating screen (51), the sorting matrix (2) is provided with an inlet (22), a heavy particle outlet (23) and a light particle outlet (24), the inlet (22) is arranged above the vibrating screen (51), the height of the heavy particle outlet (23) is higher than that of the light particle outlet (24), one end of the vibrating screen (51) is connected with the heavy particle outlet (23), and the other end of the vibrating screen (51) is connected with the light particle outlet (24).

3. A self-circulating density separator according to claim 2, characterised in that: The sorting matrix (2) is provided with an air guide plate (21) for guiding the air direction of the fan (6), and the guiding direction of the air guide plate (21) is perpendicular to the oblique direction of the vibrating screen (51).

4. A self-circulating density separator according to claim 3, characterised in that: The driving mechanism (52) includes a rotating shaft (521), a cam (522), a driving unit (523) for driving the rotating shaft (521) to rotate and a telescopic structure (524) for guiding the telescopic movement of the vibrating screen (51), the cam (522) is fixedly arranged on the rotating shaft (521), the rotating shaft (521) is rotatably connected in the sorting matrix (2), the cam (522) is in abutting engagement with the vibrating screen (51), the driving unit (523) and the telescopic structure (524) are arranged on the air guide plate (21), one side of the telescopic structure (524) away from the air guide plate (21) is fixedly connected with the vibrating screen (51), and the telescopic direction of the telescopic structure (524) is perpendicular to the oblique direction of the vibrating screen (51).

5. A self-circulating density separator according to claim 4, characterised in that: The telescopic structure (524) includes a telescopic rod (5241) and a mounting base (5242), the telescopic rod (5241) telescopically slides on the mounting base (5242), the mounting base (5242) is obliquely arranged on the air guide plate (21), the telescopic rod (5241) is fixedly connected with the vibrating screen (51), and the oblique direction of the mounting base (5242) is the same as the guiding direction of the air guide plate (21).

6. A self-circulating density separator according to claim 5, characterised in that: The mounting seat (5242) is provided with a mounting groove (5243), the telescopic rod (5241) is slidably arranged in the mounting groove (5243), the mounting groove (5243) of the mounting seat (5242) is provided with a telescopic spring (5244), one end of the telescopic spring (5244) is in abutting fit with the telescopic rod (5241), and the other end of the telescopic spring (5244) is in abutting fit with the mounting seat (5242).

7. A self-circulating density separator according to claim 1, characterized in that: The dust removal box (4) is internally provided with a guide channel (411) for connecting the air extraction mechanism (7), a filter frame (412) for filtering extracted air and a filter box (413) for communicating with the air inlet pipeline (8), and the filter frame (412) is arranged between the guide channel (411) and the filter box (413).

8. A self-circulating density separator according to claim 7, characterised in that: The bottom of the dust removal box (4) is provided with a dust storage drawer (42) for storing dust, and the dust storage drawer (42) is arranged below the filter box (413).

9. A self-circulating density separator according to claim 8, characterised in that: The filter frame (412) comprises an upper layer filter screen (4121), a lower layer filter screen (4122) and a connecting spring (4123) for connecting the upper layer filter screen (4121) and the lower layer filter screen (4122), and a vibration motor (4125) for driving the filter frame (412) to vibrate dust is fixedly arranged on the filter frame (412).

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