Material recovery and separation equipment

Abstract

A material recovery separation device for use in separating materials is provided. [Solution] The system includes a primary cyclone separation system 2 used to separate material into a recovered material P1, a primary powder P2 having an average particle size smaller than that of the recovered material P1, and a mixed powder P3 having an average particle size smaller than that of the primary powder P2; a secondary cyclone separator 3 used to separate the mixed powder P3 into a secondary powder P4 having an average particle size smaller than that of the primary powder P2, and a residual powder P5 having an average particle size smaller than that of the secondary powder P4; a first filtration system including a case in fluid communication with the secondary cyclone separator 3 and used for the entry of the residual powder P5; at least one first filter installed in the case; a tertiary discharge area used to discharge unfiltered powder; and an exhaust area.

Description

[Technical Field]

[0001] The present invention relates to a recovery device for a photovoltaic power generation facility, and more particularly to a device for recovering and separating materials from a solar panel. [Background technology]

[0002] Patent Document 1 discloses a dust removal and powder control system relating to the green production technology field.

[0003] The dust removal and powder control system includes a cyclone separator and an exhaust cloth bag in fluid communication with the cyclone separator, which can be used to separate oversized and undersized objects from materials.

[0004] Small objects enter the exhaust cloth bag and are filtered by the exhaust cloth bag, so that the gases emitted from the exhaust cloth bag meet the emission standards.

[0005] However, although this existing dust removal and powder control system can separate objects of different sizes in the material, the degree of separation is insufficient and further improvement is needed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Chinese Patent No. 119819059 Summary of the Invention [Problem to be solved by the invention]

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to remedy at least one drawback of the prior art. [Means for solving the problem]

[0008] The present invention provides a material recovery separation device used to separate materials, comprising a primary cyclone separation system, a secondary cyclone separator, and a first filtration system; the primary cyclone separation system is used to separate the material into a recovered material, a primary powder having an average particle size smaller than the size of the recovered material, and a mixed powder having an average particle size smaller than the average particle size of the primary powder; The primary cyclone separation system also includes a primary feed area used to introduce the material, a top discharge area used to discharge the mixed powder, a bottom discharge area located below the top discharge area and used to allow the collected material to fall, and a primary discharge area spaced apart from the bottom discharge area and used to discharge the primary powder, the secondary cyclone separator is used to separate the mixed powder into a secondary powder having an average particle size smaller than that of the primary powder and a residual powder having an average particle size smaller than that of the secondary powder, and the secondary cyclone separator is in fluid communication with the top discharge area of ​​the primary cyclone separation system and includes a secondary feed area for receiving the mixed powder, a top discharge area for discharging the residual powder, and a secondary discharge area for discharging the secondary powder; The first filtration system includes a case that is in fluid communication with the upper discharge area of ​​the secondary cyclone separator and is used for the entry of the remaining powder, at least one first filter installed in the case, a tertiary discharge area that is used for discharging unfiltered powder that has settled by gravity and not been filtered by the first filter, and an exhaust area that is used for discharging filtered gas that has been filtered by the first filter. [Effects of the Invention]

[0009] The effect of the present invention is that the primary cyclone separation system and the secondary cyclone separator provide multiple levels of cyclone separation, thereby increasing the fineness of separation and improving the separation effect. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing an embodiment of a material recovery and separation device according to the present invention; [Figure 2] FIG. 10 is a partial perspective view showing the embodiment from another angle with the support unit omitted. [Figure 3] FIG. 2 is a cross-sectional view of the primary cyclone separating system and a portion of the secondary cyclone separator of the above embodiment. [Figure 4] FIG. 2 is a partial cross-sectional view showing a portion of the first filtration system of the above embodiment. [Figure 5] FIG. 2 is a partial cross-sectional view showing the first filtration system taken from another direction. [Figure 6] FIG. 2 is a partial cross-sectional view showing a portion of the second filtration system of the above embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Before the present invention is described in detail, it should be noted that, where considered appropriate, reference numerals or terminal portions of reference numerals have been repeated among the figures to indicate corresponding or similar elements, which may optionally have similar characteristics.

[0012] In describing this invention, the terms "first," "second," etc. are used for distinguishing purposes only and do not teach or imply relative importance.

[0013] The present invention will be described in detail below.

[0014] The material recovery and separation device of the present invention is applied to separate materials, which in this embodiment are a mixture obtained by scraping discarded solar panels.

[0015] Referring to Figures 1 to 3, this embodiment includes a support unit 1, a primary cyclone separation system 2 installed on the support unit 1, a secondary cyclone separator 3 installed on the support unit 1, a first filtration system 4 installed on the support unit 1, and a second filtration system 5 installed on the support unit 1 and connected to the first filtration system 4.

[0016] The purpose of the support unit 1 is to provide support. As long as it can provide support, the shape and structure of this support unit 1 are not limited to those shown in the drawings and can be changed in many different ways.

[0017] Referring to Figures 2 to 4, the primary cyclone separation system 2 includes an internal cyclone separator 6 and an external cyclone separator 7 that is arranged outside the internal cyclone separator 6 so as to surround the internal cyclone separator 6.

[0018] The internal cyclone separator 6 includes a vortex-shaped supply vortex section 61 that extends in a curved manner in the horizontal direction, an internal top cylinder section 62 that extends straight downward from the supply vortex section 61 (i.e., extends up and down), an internal bottom cylinder section 63 that extends downward from the internal top cylinder section 62 with a reduced diameter, a top discharge section 64 inserted in the supply vortex section 61, and a bottom discharge section 65 that extends straight downward from the internal bottom cylinder section 63.

[0019] In this embodiment, the inner top section 62 and the bottom discharge section 65 extend vertically downward.

[0020] The feed volute section 61 defines a transversely curved and extending volute-shaped primary feed area 611. The primary feed area 611 is used for material to enter the internal cyclone separator 6.

[0021] The internal top section 62 is an upright cylinder that, together with the internal bottom section 63, defines an internal flow passage 66 that may be in fluid communication with the bottom of the primary feed area 611.

[0022] The internal bottom cylinder section 63 has a truncated cone shape. Each of the internal bottom cylinder section 63 and the internal top cylinder section 62 has a plurality of communication holes 67 formed therein that penetrate from the inside to the outside and communicate with the internal flow path 66 so that fluid can flow therethrough.

[0023] The mesh of the plurality of communication holes 67 is 18. In another embodiment of the present invention, the mesh of the plurality of communication holes 67 may be 35-10.

[0024] The internal cyclone separator 6 has a top column height H62 (i.e., the total height of the feed volute section 61 and the internal top column section 62) which is the height above the internal bottom column section 63, and the internal bottom column section 63 has a bottom column height H63.

[0025] The bottom cylinder height H63 is equal to the top cylinder height H62, i.e., 1 times the top cylinder height H62. In other embodiments of the present invention, the bottom cylinder height H63 may be 0.8 to 1.2 times the top cylinder height H62, for example, 0.9 times, 0.95 times, 1.1 times, or 1.15 times.

[0026] The top discharge section 64 is inserted into the supply volute section 61. The top discharge section 64 protrudes downward and is inserted into the internal flow passage 66, and protrudes upward to protrude from the supply volute section 61.

[0027] The top discharge section 64 is an upright cylindrical member that is vertically perforated and defines a top discharge area 641. The bottom of the top discharge area 641 communicates with the top of the internal flow path 66.

[0028] The bottom discharge section 65 is an upright cylindrical member that is vertically perforated and defines a cylindrical bottom discharge area 651 that is in fluid communication with the internal flow passage 66 .

[0029] The bottom discharge area 651 is in fluid communication with the bottom of the internal flow path 66 and is located below the primary feed area 611 and directly below the top discharge area 641 .

[0030] The external cyclone separator 7 includes an external top cylinder section 71 that extends upright vertically, an external bottom cylinder section 72 that extends downward from the external top cylinder section 71 so as to reduce in diameter, and an inclined cylinder section 73 that further extends from the external bottom cylinder section 72 so as to slope downward.

[0031] The outer head section 71 has an upright cylindrical shape. The top end of the outer head section 71 is connected to the bottom of the feed volute section 61 of the internal cyclone separator 6.

[0032] The external bottom section 72 has a truncated cone shape. Together with the external top section 71, the external bottom section 72 surrounds the outer periphery of the internal top section 62 and the internal bottom section 63 of the internal cyclone separator 6, and together with the internal cyclone separator 6, defines an interlayer area A1 between the external bottom section 72 and the internal cyclone separator 6.

[0033] The interlayer area A1 communicates with the internal flow path 66 via a plurality of communication holes 67 of the internal cyclone separator 6. That is, each of the plurality of communication holes 67 communicates the internal flow path 66 with the interlayer area A1.

[0034] That is, the outer top cylinder section 71 is indirectly connected to the supply volute section 61 via the interlayer area A1, the plurality of communication holes 67, and the internal flow passage 66.

[0035] The inclined cylinder section 73 extends at an angle away from the internal cyclone separator 6. The inclined cylinder section 73 defines a primary discharge area 731 whose top end is in fluid communication with the interlayer area A1. The bottom end of the primary discharge area 731 is open and in communication with the outside, and the primary discharge area 731 and the top discharge area 651 are spaced apart from each other.

[0036] The secondary cyclone separator 3 includes a spiral-shaped supply section 31 that extends in a curved manner in the horizontal direction, a cylindrical upper cylinder section 32 that extends straight downward from the supply section 31 (i.e., extends up and down), a truncated cone-shaped lower cylinder section 33 that extends downward from the upper cylinder section 32 while reducing in diameter, an upper discharge section 34 inserted in the supply section 31, and a lower discharge section 35 that extends straight downward from the lower cylinder section 33.

[0037] The feed section 31 defines a laterally curved, volute-shaped secondary feed area 311. The secondary feed area 311 is in fluid communication with the top discharge area 641 of the internal cyclonic separator 6 of the primary cyclonic separation system 2.

[0038] The secondary cyclone separator 3 has an upper cylinder height H32 (i.e., the total height of the feed section 31 and the upper cylinder section 32) that is a height above the lower cylinder section 33. The lower cylinder section 33 has a lower cylinder height H33.

[0039] The lower cylinder height H33 is 1.67 times the upper cylinder height H32. In other embodiments of the present invention, the lower cylinder height H33 may be 1.6 to 2 times the upper cylinder height H32, for example, 1.7 times, 1.8 times, 1.9 times, etc.

[0040] The upper discharge section 34 is an upright cylindrical section that is perforated vertically and defines an upper discharge area 341. The lower discharge section 35 is an upright cylindrical section that is perforated vertically and defines a secondary discharge area 351. The secondary discharge area 351 is located directly below the upper discharge area 341.

[0041] 2, 4 and 5, the first filtration system 4 includes a case 41 in fluid communication with the upper discharge section 34 of the secondary cyclone separator 3, a plurality of first filters 42 installed in the case 41, a communicating pipe set 43 (see FIG. 1) in fluid communication with the case 41, an intake unit 44 in fluid communication with the case 41, and a pressurizing unit 45 in fluid communication with the case 41 via the communicating pipe set 43.

[0042] The case 41 includes a main case portion 411, a partition portion 412 installed within the main case portion 411, a reduced diameter case portion 413 extending downward from the main case portion 411 so as to reduce in diameter, a bottom tube case portion 414 extending downward from the reduced diameter case portion 413, a spiral case portion 415 installed above the main case portion 411, and a top tube case portion 416 installed above the spiral case portion 415.

[0043] The main case 411 is generally cubic in shape. The partition 412 divides the interior area of ​​the main case 411 into a filter space 411a that houses the first filter 42 and a work space 411b located above the filter space 411a. The partition 412 also has an opening that connects the filter space 411a and the work space 411b.

[0044] The reduced diameter case portion 413 is formed in a truncated quadrangular pyramid shape with a wide upper width and a narrow lower width. The reduced diameter case portion 413 also includes an air inlet 413a formed at a position lower than at least one first filter 42 and in fluid communication with the upper discharge area 341, and a reduced diameter space 413b in fluid communication with the air inlet 413a and the filter space 411a.

[0045] The bottom tube case portion 414 is an upright cylindrical shape that is penetrated vertically, and defines a tertiary discharge area 414a that communicates with the outside and the reduced diameter space 413b.

[0046] The volute casing portion 415 defines an exhaust area 415a in fluid communication with the working space 411b of the main casing portion 411. The exhaust area 415a is higher than the at least one first filter 42.

[0047] Top case portion 416 is in fluid communication with volute case portion 415 .

[0048] Each first filter 42 is a dense cloth filter bag, and is cylindrical with an open top. Specifically, the bottom and side surfaces of each first filter 42 have a filtering effect, and the top end of each first filter 42 is attached to the partition 412.

[0049] The internal space of each first filter 42 communicates with the working space 411b through the opening in the partition portion 412. Therefore, each first filter 42 has the effect of filtering the fluid as it flows from the filter space 411a to the working space 411b.

[0050] The intake unit 44 is an air pump in fluid communication with the top case 416 of the first filtration system 4. The intake unit 44 can also be used to draw air into the working space 411b to drive fluid from the filter space 411a to the working space 411b.

[0051] The pressurizing unit 45 is an air pump in fluid communication with the workspace 411b via the communication tube set 43.

[0052] The pressurizing unit 45 supplies air to the working space 411b, causing the gas to flow into the internal space of the first filter 42, pressurizing the internal space of the first filter 42, and causing the gas to flow from the internal space of each first filter 42 into the filter space 411a.

[0053] This allows the deposits adhering to the outer surface of the first filter 42 to fall off and be discharged from the reduced diameter case portion 413 and the bottom tube case portion 414.

[0054] Referring to FIGS. 1 and 5, the second filtration system 5 includes an outer frame 51 and a second filter 52 disposed within the outer frame 51 .

[0055] The outer frame 51 is connected to the spiral casing portion 415 of the casing 41 of the first filtration system 4 and is in fluid communication with the exhaust area 415a of the first filtration system 4. The second filter 52 is a HEPA filter.

[0056] Referring to Figures 2 and 3, when the present invention operates, materials generated from discarded solar photovoltaic panels enter the internal cyclone separator 6 from the primary feed area 611 of the feed volute section 61 of the internal cyclone separator 6.

[0057] Among the materials, the recovered material P1, which is large in size, falls from the bottom discharge area 651 through the internal flow path 66. The primary powder P2, which has an average particle size smaller than that of the recovered material P1, moves from the internal flow path 66 to the interlayer area A1 through the multiple communication holes 67 of the internal cyclone separator 6, and is discharged from the primary discharge area 731.

[0058] The mixed powder P3, whose average particle size is smaller than that of the primary powder P2, is discharged from the top discharge area 641 of the top discharge section 64 and enters the secondary cyclone separator 3 from the secondary feed area 311 of the secondary cyclone separator 3.

[0059] In this embodiment, the recovered material P1 is a lump or rod-like material, so the size of the recovered material P1 is larger than that of the primary powder P2. The average particle size of the primary powder P2 is approximately 0.1 to 1 mm. The average particle size of the mixed powder P3 is less than 0.1 mm.

[0060] When the mixed powder P3 enters the secondary cyclone separator 3, secondary powder P4, which has an average particle size smaller than that of the primary powder P2, is discharged from the secondary discharge area 351 of the secondary cyclone separator 3, and residual powder P5, which has an average particle size smaller than that of the secondary powder P4, is discharged from the upper discharge area 341 and enters the case 41 of the first filtration system 4. In other words, the secondary cyclone separator 3 is used to separate the mixed powder P3 into secondary powder P4, which has an average particle size smaller than that of the primary powder P2, and residual powder P5, which has an average particle size smaller than that of the secondary powder P4.

[0061] In this embodiment, the secondary powder P4 has an average particle size of 5 μm to 0.1 mm, and the remaining powder P5 has an average particle size of less than 5 μm.

[0062] When the remaining powder P5 enters the first filtration system 4, it is filtered by the first filter 42 and separated into filtered material that adheres to the first filter 42 and unfiltered powder P6 that settles due to gravity, is not filtered by the first filter 42, and is discharged from the tertiary discharge area 414a. The average particle size of the unfiltered powder P6 is less than 5 μm.

[0063] Finally, the filtered gas filtered by the first filter 42 passes through the exhaust area 415a and enters the second filtration system 5, where it filters out suspended particles of 0.3 μm or larger, ensuring that the final exhausted gas meets the exhaust standards.

[0064] A first feature of this embodiment is that the primary cyclone separation system 2 provides three levels of separation: large objects (such as lumps and rods) / grains / powder.

[0065] Additionally, the secondary cyclone separator 3 provides two levels of separation: coarse powder and fine powder. Thus, the primary cyclone separating system 2 and the secondary cyclone separator 3 provide multiple levels of separation.

[0066] The second feature of this embodiment is that the bottom cylinder height H63 of the internal bottom cylinder section 63 of the internal cyclone separator 6 is set to be 1.2 times or less the top cylinder height H62 of the internal top cylinder section 62, that is, by shortening the length of the internal bottom cylinder section 63, it is possible to allow powder to enter the secondary cyclone separator 3.

[0067] The third feature of this embodiment is that the lower cylinder height H33 of the lower cylinder section 33 of the secondary cyclone separator 3 is set to be 1.6 times or more the upper cylinder height H32 of the upper cylinder section 32, that is, by making the length of the lower cylinder section 33 longer, a better separation effect can be obtained for coarse powder and fine powder.

[0068] The fourth feature of this embodiment is that the first filtration system 4 further includes a pressurizing unit 45, which not only desorbs substances adhering to the first filter 42 to regenerate the first filter 42, but also collects fine powder adhering to the first filter 42.

[0069] The fifth feature of this embodiment is that the exhaust area 415a and the air inlet 413a are located on two opposite sides, above and below, of the first filter 42, respectively, thereby utilizing gravity to reduce the kinetic energy of the unfiltered powder P6, allowing the unfiltered powder P6 to settle and be discharged from the tertiary discharge area 414a.

[0070] In this invention, fluid communication refers to a case where two components are directly connected to each other and fluidly communicate with each other, or a case where two components are connected via a pipe and a flange and fluidly communicate with each other. Since the technology of fluid communication is common knowledge, a detailed explanation of fluid communication will be omitted. In this invention, a spiral shape can also be considered as a 6-shape or a 9-shape.

[0071] According to the above, the effect of the material recovery separation device of the present invention is that the multiple levels of cyclone separation can improve the fineness of separation and the separation effect.

[0072] The above embodiments are illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Those skilled in the art may make slight changes or modifications to the above embodiments without departing from the spirit and scope of the present invention. Therefore, all changes and modifications made by those skilled in the art without departing from the gist of the present invention should be considered to fall within the scope of protection of the present invention. [Industrial Applicability]

[0073] The material recovery and separation device of the present invention is suitable for recovering and separating materials. [Explanation of symbols]

[0074] 1 Support Unit 2 Primary cyclone separation system 3 Secondary cyclone separator 31 Supply Section 311 Secondary Supply Area 32 Upper barrel section 33 Lower barrel section 34 Upper discharge section 341 Upper discharge area 35 Lower discharge section 351 Secondary Discharge Area 4. First Filtration System 41 cases 411 Main case section 411a Filter Space 411b Workspace 412 Partition 413 Reduced diameter case part 413a Air inlet 413b Reduced diameter space 414 Bottom tube case part 414a Tertiary Discharge Area 415 Vortex case part 415a Exhaust area 416 Top tube case 42 First Filter 43 Connecting pipe set 44 Intake unit 45 Pressure Unit 5 Secondary Filtration System 51 Outer Frame 52 Second Filter 6 Internal cyclone separator 61 Supply volute section 611 Primary Supply Area 62 Inner Top Section 63 Inner bottom section 64 Top discharge section 641 Top discharge area 65 Bottom Discharge Section 651 Bottom discharge area 66 Internal flow path 67 Communication hole 7. External cyclone separator 71 Outer cap section 72 Outer bottom tube section 73 Tilted Tube Section 731 Primary Discharge Area A1 Interlayer Area H32 Upper barrel height H33 Lower barrel height H62 Top cylinder height H63 Bottom tube height P1 Collection items P2 Primary powder P3 mixed powder P4 Secondary powder P5 Residual powder P6 Unfiltered powder

Claims

1. A material recovery separation apparatus for use in separating materials, the apparatus comprising: a primary cyclone separation system; a secondary cyclone separator; and a first filtration system; the primary cyclone separation system is used to separate the material into a recovered material, a primary powder having an average particle size smaller than the size of the recovered material, and a mixed powder having an average particle size smaller than the average particle size of the primary powder; The primary cyclone separation system also includes a primary feed area used to introduce the material, a top discharge area used to discharge the mixed powder, a bottom discharge area located below the top discharge area and used to allow the collected material to fall, and a primary discharge area spaced apart from the bottom discharge area and used to discharge the primary powder, the secondary cyclone separator is used to separate the mixed powder into a secondary powder having an average particle size smaller than that of the primary powder and a residual powder having an average particle size smaller than that of the secondary powder, and the secondary cyclone separator is in fluid communication with the top discharge area of ​​the primary cyclone separation system and includes a secondary feed area for receiving the mixed powder, a top discharge area for discharging the residual powder, and a secondary discharge area for discharging the secondary powder; The first filtration system includes a case that is in fluid communication with the upper discharge area of ​​the secondary cyclone separator and is used for the remaining powder to enter, at least one first filter installed in the case, a tertiary discharge area that is used for discharging unfiltered powder that has settled by gravity and not been filtered by the first filter, and an exhaust area that is used for discharging filtered gas that has been filtered by the first filter.

2. the primary cyclone separation system includes an internal cyclone separator having an internal flow path, and an external cyclone separator surrounding the outer periphery of the internal cyclone separator and defining an interlayer area together with the internal cyclone separator; the internal cyclone separator has a plurality of communication holes formed therein that communicate the internal flow path with the interlayer area; The material recovery and separation apparatus of claim 1 , wherein the plurality of communication holes allow the primary powder to move from the internal flow passage to the interlayer area.

3. the internal cyclone separator includes an internal top section extending vertically, and an internal bottom section extending downward from the internal top section to reduce its diameter; The material recovery and separation apparatus according to claim 2 , wherein each of the internal top and bottom cylindrical sections has a plurality of communication holes formed therein.

4. the internal cyclone separator has a top height that is a height above the internal bottom section; the inner bottom section has a bottom height that is 0.8 to 1.2 times the top height; the external cyclone separator includes an external top cylinder section extending vertically, an external bottom cylinder section extending downward from the external top cylinder section so as to reduce in diameter, and an inclined cylinder section extending downward from the top at an angle away from the internal cyclone separator, The material recovery and separation apparatus of claim 3 , wherein the tapered barrel section defines the primary discharge area.

5. The secondary cyclone separator includes an upper cylindrical section extending vertically, and a lower cylindrical section extending downward from the upper cylindrical section so as to reduce in diameter, 2. The material recovery separation apparatus of claim 1, wherein the secondary cyclone separator has an upper barrel height that is a height above the lower barrel section, and the lower barrel section has a lower barrel height that is 1.6 to 2 times the upper barrel height.

6. the first filtration system further includes a pressurizing unit in fluid communication with the case and capable of pressurizing an interior of the at least one first filter; and an air inlet in fluid communication with the upper discharge area; 2. The material recovery and separation apparatus of claim 1, wherein the air inlet is located lower than the at least one first filter and the exhaust area is located higher than the at least one first filter.

7. further comprising a second filtration system; 7. The material recovery and separation apparatus of claim 6, wherein the second filtration system includes an outer casing in fluid communication with the exhaust area, and a second filter mounted in the outer casing.

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