Feeding and dust collecting device for silicon material screening
By designing a feeding and dust collection device for silicon material screening, using the U-shaped circuit of corrugated pipes and dust collection tanks, the problems of unsatisfactory silicon dust collection effect and backup equipment recycling in traditional equipment are solved, and the efficiency of silicon material is achieved Recycle and reduce waste.
Patent Information
- Application Number
- CN202422804580.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Traditional silicon material crushing and screening equipment is not ideal when collecting silicon dust. Some silicon dust particles are large, resulting in waste. Moreover, the backup equipment cannot be recycled and processed uniformly with the original equipment after starting.
A feeding and dust collection device including a screening machine, a magnetic separator, a corrugated pipe, a dust collection tank and an air outlet pipe is designed. It is set through the discharge port of the magnetic separator and the feed port of the screening machine, and is used to The corrugated pipe and dust removal pipe collect silicon dust, and achieve settlement and unified recovery of silicon dust through the U-shaped circuit of the dust collection tank.
It improves the dust collection effect of silicon dust, reduces the waste of silicon material, and realizes the unified recycling and processing of silicon material between spare equipment and original equipment.
Smart Images
Figure CN222325416U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silicon material processing equipment, in particular to a material feeding and dust collecting device for silicon material screening. Background Art
[0002] Monocrystalline silicon scraps are waste materials generated after cutting during the production of monocrystalline silicon. After cleaning and crushing, the waste materials can be reused in the production of monocrystalline silicon, forming a closed loop of recycling.
[0003] During the crushing process of waste materials, in order to ensure the working environment, the silicon dust generated will be collected by the dust collector. However, since there are many locations where silicon dust is generated in the crushing and screening equipment, it is difficult for traditional dust collectors to cover all of them, resulting in unsatisfactory dust collection effects. Secondly, some silicon dust particles are large, and during the dust removal process, a portion of the silicon material will enter the pipeline, and this portion of the silicon material will follow into the dust removal equipment, resulting in some silicon material being wasted. In order to ensure continuous operation, the screening and crushing equipment is generally equipped with a backup. After the backup screening equipment is started, the recycled silicon material cannot be processed and recycled together with the silicon material recycled by the original equipment. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a loading and dust collecting device for silicon material screening, which can cover the dust collecting position to prevent silicon dust from escaping and improve the dust collecting effect. At the same time, it can uniformly and preliminarily recover the silicon materials of the spare screening equipment and the original equipment to reduce silicon material waste.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A feeding dust collecting device for silicon material screening comprises a screening machine, a magnetic separator, a bellows, a dust removal pipeline, a dust collecting tank, a partition, and an air outlet pipeline; a screening machine is arranged in the direction of the discharge port of the magnetic separator; the discharge port of the magnetic separator is located above the feed port of the screening machine; the feed port and the discharge port of the screening machine and the magnetic separator are connected to one end of the bellows; the other end of the bellows is connected to the dust removal pipeline; two groups of the dust removal pipelines are connected to the dust collecting tank; the other end of the dust removal pipeline is closed; two partitions are arranged inside the dust collecting tank, and the two partitions divide the internal space of the dust collecting tank into three parts in the longitudinal direction; the bottom space of the dust collecting tank is connected; the top of the dust collecting tank is connected to the air outlet pipeline; the air inlet of the dust collecting tank corresponds to the two side spaces respectively; the connecting port of the air outlet pipeline and the dust collecting tank is located in the middle space, and the dust entering along the dust removal pipeline flows along the two side spaces to the middle space to form a U-shaped loop; the bottom of the dust collecting tank is provided with a discharge port.
[0007] Preferably, a material trough is fixed at the feed port of the magnetic separator, and a push plate is movably provided in the material trough, and both ends of the push plate are connected to the telescopic ends of the cylinder; the cylinder is fixed on both sides of the material trough; after the push plate pushes the silicon material into the magnetic separator, the push plate closes the feed port of the magnetic separator.
[0008] Preferably, the dust removal duct and the air outlet duct are provided with electric valves for controlling opening and closing.
[0009] Preferably, the air outlet duct is connected to the main pipeline of the dust collector.
[0010] Preferably, the bellows are divided into a first bellows, a second bellows, and a third bellows; the feed port and the discharge port of the magnetic separator are connected to the dust removal pipe through the first bellows respectively; the sieve bodies of each level of the screening machine are connected to the dust removal pipe through the second bellows; and each discharge port of the screening machine is connected to the dust removal pipe through the third bellows.
[0011] Preferably, a collection box is provided below the discharge port of the dust collecting tank.
[0012] Preferably, baffles are staggeredly and obliquely arranged on the partitions; the baffles are inclined downward.
[0013] Beneficial effects of the utility model:
[0014] The two sets of dust collection pipes each correspond to a set of screening equipment, and finally connected to the dust collection tank. After the dust settles inside the dust collection pipe, it is discharged from the bottom of the dust collection tank to the collection box, and the silicon materials in the collection box are uniformly recycled and processed. The two sets of equipment can be switched and used according to the situation. The locations where silicon dust is easily generated are collected through the bellows, and the dust collection effect is improved at a fixed point. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the overall connection relationship of the utility model.
[0017] Figure 2 It is a schematic diagram of the connection relationship of the dust collecting tank of the utility model.
[0018] Figure 3 It is a schematic diagram of the internal structure of the dust collecting tank of the present utility model.
[0019] In the figure, a screening machine 1, a magnetic separator 2, a material trough 2.1, a push plate 2.2, a cylinder 2.3, a bellows 3, a first bellows 3.1, a second bellows 3.2, a third bellows 3.3, a dust removal pipe 4, a dust collecting tank 5, a partition 5.1, a baffle 5.2, an air outlet pipe 6, an electric valve 7, and a collection box 8. DETAILED DESCRIPTION
[0020] like Figure 1-3 As shown, a feeding and dust collecting device for silicon material screening comprises a screening machine 1 provided in the direction of the discharge port of a magnetic separator 2; the discharge port of the magnetic separator 2 is located above the feed port of the screening machine 1; the feed port and discharge port of the screening machine 1 and the magnetic separator 2 are connected to one end of a bellows 3; the other end of the bellows 3 is connected to a dust removal pipe 4; two groups of dust removal pipes 4 are connected to a dust collecting tank 5; electric valves 7 for controlling opening and closing are provided on the dust removal pipe 4 and the air outlet pipe 6, and the two groups of equipment are controlled to open and close respectively. When one group is in operation, the screening machine 1 and the magnetic separator 2 of the other group of equipment can be stopped, so as to facilitate later inspection and maintenance.
[0021] The other end of the dust removal pipe 4 is closed; two partitions 5.1 are arranged inside the dust collecting tank 5, and the two partitions 5.1 divide the internal space of the dust collecting tank 5 into three parts longitudinally. Baffles 5.2 are arranged on the partitions 5.1 in an alternating manner; the baffles 5.2 are inclined downward, and the baffles 5.2 can extend the path, making it easy for silicon dust to settle. The bottom space of the dust collecting tank 5 is connected; the top of the dust collecting tank 5 is connected to the air outlet duct 6, and the air outlet duct 6 is connected to the main pipeline of the dust collector. This part is only a preliminary dust collection device at the front end, and it is finally necessary to enter the industrial dust collector in the factory area for dust removal. The air inlet of the dust collecting tank 5 corresponds to the space on both sides respectively; so that the two groups of equipment enter the dust collecting tank 5 after dust collection. The connecting port between the air outlet duct 6 and the dust collecting tank 5 is located in the middle space, and the dust entering along the dust removal pipe 4 flows along the space on both sides to the middle space, forming a U-shaped loop; the bottom of the dust collecting tank 5 is provided with a discharge port. The airflow with dust settles during the downward movement, and some large particles of silicon dust that are easy to settle are recovered. In order to facilitate recovery, a collection box 8 is provided below the discharge port of the dust collecting tank 5. After the collection box 8 is full, it is transferred to the processing area, and the empty collection box 8 is placed in place.
[0022] like Figure 1-3 As shown, since the feed port of the magnetic separator 2 is located in the actual operation process, the dust generation position is close to the operator who feeds the materials. In order to ensure that the dust is controllable, a material trough 2.1 is fixed at the feed port of the magnetic separator 2, and a push plate 2.2 is movably provided in the material trough 2.1. The two ends of the push plate 2.2 are connected to the telescopic ends of the cylinder 2.3; the cylinder 2.3 is fixed on both sides of the material trough 2.1; after the push plate 2.2 pushes the silicon material into the magnetic separator 2, the push plate 2.2 closes the feed port of the magnetic separator 2.
[0023] Secondly, the bellows 3 is divided into a first bellows 3.1, a second bellows 3.2, and a third bellows 3.3; the feed port and the discharge port of the magnetic separator 2 are connected to the dust removal pipe 4 through the first bellows 3.1; the sieve bodies of each level of the screening machine 1 are connected to the dust removal pipe 4 through the second bellows 3.2; the discharge port of the screening machine 1 is connected to the dust removal pipe 4 through the third bellows 3.3, and the diameter of the third bellows 3.3 is smaller than that of the second bellows 3.2. Since our factory uses a three-stage screening machine, each discharge port of the three-stage screening machine is independently connected to a third bellows 3.3. If the fixing method is not separately introduced above, it is welded or threaded using the general technical means of technical personnel in the industry.
[0024] Here’s how it works:
[0025] The screening machine 1 and the magnetic separator 2 are in operation. The operator puts the silicon material into the material trough 2.1, and the cylinder 2.3 retracts. The push plate 2.2 pushes the silicon material into the magnetic separator 2 while closing the feed port of the magnetic separator 2. The silicon dust is collected along the bellows 3 and enters the dust removal pipe 4. It is transferred to the dust collecting tank 5 along the dust removal pipe 4 for sedimentation. Part of the silicon dust is pushed and accumulated at the discharge port of the dust collecting tank 5. After a certain amount of silicon dust accumulates, the discharge port valve of the dust collecting tank 5 is opened for discharge. The dust removal pipe 4 is provided with an electric valve 7, which can control the opening and closing states of the two groups of dust removal pipes 4.
[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A feeding and dust collecting device for silicon material screening, characterized in that: The invention comprises a screening machine, a magnetic separator, a bellows, a dust removal pipe, a dust collecting tank, a partition and an air outlet pipe; a screening machine is arranged in the direction of the discharge port of the magnetic separator; the discharge port of the magnetic separator is located above the feed port of the screening machine; the feed port and the discharge port of the screening machine are connected to one end of the bellows; the other end of the bellows is connected to the dust removal pipe; two groups of dust removal pipes are connected to the dust collecting tank; the other end of the dust removal pipe is closed; two partitions are arranged inside the dust collecting tank, and the two partitions divide the internal space of the dust collecting tank into three parts longitudinally; the bottom space of the dust collecting tank is connected; the top of the dust collecting tank is connected to the air outlet pipe; the air inlet of the dust collecting tank corresponds to the spaces on both sides respectively; the connecting port of the air outlet pipe and the dust collecting tank is located in the middle space, and the dust entering along the dust removal pipe flows along the spaces on both sides to the middle space to form a U-shaped loop; the bottom of the dust collecting tank is provided with a discharge port.
2. The feeding and dust collecting device for silicon material screening according to claim 1, characterized in that: A material trough is fixed at the feed port of the magnetic separator, and a push plate is movably provided in the material trough, and both ends of the push plate are connected to the telescopic ends of the cylinder; the cylinder is fixed on both sides of the material trough; after the push plate pushes the silicon material into the magnetic separator, the push plate closes the feed port of the magnetic separator.
3. The feeding and dust collecting device for silicon material screening according to claim 1, characterized in that: The dust removal duct and the air outlet duct are provided with electric valves for controlling opening and closing.
4. The feeding and dust collecting device for silicon material screening according to claim 3, characterized in that: The air outlet duct is connected to the main pipeline of the dust collector.
5. The feeding and dust collecting device for silicon material screening according to claim 1, characterized in that: The bellows are divided into a first bellows, a second bellows, and a third bellows; the feed port and the discharge port of the magnetic separator are connected to the dust removal pipeline through the first bellows respectively; the sieve bodies of each level of the screening machine are connected to the dust removal pipeline through the second bellows; and each discharge port of the screening machine is connected to the dust removal pipeline through the third bellows.
6. The feeding and dust collecting device for silicon material screening according to claim 1, characterized in that: A material collecting box is arranged below the material discharge port of the dust collecting tank.
7. The feeding and dust collecting device for silicon material screening according to claim 1, characterized in that: Baffles are staggered and inclined on the partitions; the baffles are inclined downward.