CN111420779B - Crystal material crushing and cleaning pretreatment device and method - Google Patents
Crystal material crushing and cleaning pretreatment device and method Download PDFInfo
- Publication number
- CN111420779B CN111420779B CN202010210868.XA CN202010210868A CN111420779B CN 111420779 B CN111420779 B CN 111420779B CN 202010210868 A CN202010210868 A CN 202010210868A CN 111420779 B CN111420779 B CN 111420779B
- Authority
- CN
- China
- Prior art keywords
- replacement
- tray
- heating
- stepping
- bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 182
- 239000013078 crystal Substances 0.000 title claims abstract description 45
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 108
- 238000004880 explosion Methods 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000011261 inert gas Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 41
- 239000007789 gas Substances 0.000 claims description 25
- 239000002178 crystalline material Substances 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 9
- 230000007306 turnover Effects 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000011086 high cleaning Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000002210 silicon-based material Substances 0.000 description 8
- 230000003028 elevating effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000109 continuous material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention provides a crystal material crushing and cleaning pretreatment device and a cleaning pretreatment method, which belong to the field of crystal material crushing and are used for heating and water cooling treatment of materials under high cleaning conditions, and the device comprises an atmosphere replacement part, a heating part and a cold explosion part; the atmosphere replacement part is arranged at the inlet end of the heating part material; the heating part comprises an inlet end and an outlet end; the atmosphere replacement part is arranged at the inlet end of the heating part and is used for sucking and removing air adsorbed on the surface of the material and air entering from the channel during feeding and replacing the air with inert gas. Isolating the communication between the heating part and the atmosphere prevents air from entering the heating part. And adjusting the atmosphere of the heating part; the cold explosion part is arranged at the outlet end of the heating part, and the heated crystal material is water-cooled under the controllable atmosphere. The apparatus adjusts the atmosphere in the high temperature region to a low oxygen-free state. The crystal material is isolated from air at high temperature and is protected by controllable atmosphere, so that continuous heating process and large-scale industrial production are realized.
Description
Technical Field
The invention relates to the field of crystal material cold explosion crushing pretreatment, in particular to a crystal material crushing clean pretreatment device and a crystal material clean pretreatment method.
Background
Silicon crystalline materials are used in large quantities in the photovoltaic, electronics industries. Such as monocrystalline silicon or polycrystalline silicon, the production process determines that these silicon crystalline materials are mostly large-volume, square-shaped or cylindrical solid materials. The large-size crystal material needs to be broken into blocks with a certain volume in the subsequent processing, and the finished product can be further processed after sorting. Monocrystalline silicon or polycrystalline silicon of a photovoltaic production enterprise is mainly processed in a traditional hammering mode in lump material crushing. In the process of hammering by using the metal hammering crushing device, the hammer body material is easily doped into the silicon material, so that the silicon material is polluted. Meanwhile, the randomness of action points on the silicon material is larger during hammering, so that the broken silicon material is large in particle size distribution, more in fine materials and large in loss. In recent years, a cold explosion and cracking method has appeared, and the silicon material is heated in a natural atmosphere kiln and then quenched in water, namely, the material is stressed by rapid heating and then rapid water cooling, a large number of spontaneous cracks are formed in the silicon material, and a small external force is applied to achieve the purpose of natural cracking. However, in the high-temperature heating process, the hearth, the carrier and the moving machinery in the furnace release element ions at high temperature to pollute the silicon material, and meanwhile, a series of problems such as high-temperature oxidation and continuous production operation of the silicon material plagues a water explosion treatment mode, so that the cold explosion fragmentation mode cannot realize industrialization.
Disclosure of Invention
The invention provides a crystal material crushing and cleaning pretreatment device and a crystal material cleaning pretreatment method, and aims to solve the problems of the crystal material crushing device and the crystal material cleaning pretreatment method in the prior art.
The invention is realized in the following way:
the crystal material crushing and cleaning pretreatment device is used for heating, quenching and crushing pretreatment of crystal materials and comprises an atmosphere replacement part, a heating part and a cold explosion part;
The atmosphere replacement part is provided with a feed inlet for entering materials;
The heating part comprises an inlet end and an outlet end; the atmosphere replacement part is arranged at the inlet end of the heating part and is used for sucking and removing air adsorbed on the surface of the material and air entering from the channel during feeding and replacing the air with inert gas. Isolating the communication between the heating part and the atmosphere prevents air from entering the heating part.
In one embodiment of the invention, the atmosphere displacing portion comprises a isolatable displacement plenum and a forward plenum;
The feeding port is arranged on the front side surface of the replacement bin, one port of the front bin is communicated with the replacement bin, and the other port of the front bin is communicated with the heating part;
The feeding door can be opened and closed and is arranged at the feeding port;
The replacement bin is connected with a vacuum system and a replacement gas supply pipeline.
In one embodiment of the invention, the front bin is arranged above the replacement bin, and a lifting material platform is arranged at the bottom of the replacement bin, and has a low-level state with the same height as the feeding door and a high-level state with the same height as the heating part.
In one embodiment of the invention, a furnace feeding mechanism for pushing the material into the heating part is further arranged in the front bin;
the furnace feeding mechanism pushes the material towards the lifting material platform in the high-position state.
In one embodiment of the invention, the heating section includes a stepper assembly for horizontally transporting material;
the stepping assembly comprises a stepping frame, a stepping lifting mechanism and a horizontal displacement mechanism;
the stepping lifting mechanism is arranged at the lower part of the stepping frame;
The horizontal displacement mechanism is connected with the stepping frame and drives the stepping frame to reciprocate in the heating part in each stepping cycle.
In one embodiment of the invention, a first horizontal sliding piece is arranged on one surface of the stepping frame, which is close to the stepping lifting mechanism, and a second horizontal sliding piece matched with the first horizontal sliding piece is arranged on the stepping lifting mechanism;
the first horizontal sliding piece is matched with the second horizontal sliding piece, and the stepping frame is guided to reciprocate along the connecting line of the inlet end and the outlet end.
In one embodiment of the invention, the horizontal displacement mechanism comprises a horizontal telescopic member and a hinge rod;
The horizontal telescopic piece is provided with a head capable of horizontally stretching, the head is hinged with one end of the hinging rod, and the other end of the hinging rod is hinged with one side of the stepping frame.
In one embodiment of the invention, the cold explosion part comprises a pouring mechanism and a cold explosion liquid tank;
the dumping mechanism comprises a pushing head and a rotatable dumping platform;
the outlet end of the heating part is provided with a discharge hole;
The dumping mechanism is arranged at one end of the discharge hole far away from the heating part, and the pushing head and the dumping platform are respectively arranged at two sides of the discharge hole; the pushing head is arranged towards the dumping platform;
the cold explosion liquid tank is arranged below the tilting table.
In one embodiment of the invention, the pushing head is fixedly connected with a rear bin gate, and the rear bin gate is used for shielding and sealing the discharge hole.
In one embodiment of the invention, the heating part comprises a heating furnace body, the stepping assembly is arranged in the heating furnace body, a working opening for the stepping frame to enter is further formed below the heating furnace body, and a water seal mechanism is arranged at the working opening.
In one embodiment of the invention, a lifting machine is further arranged in the cold explosion liquid tank, one end of the lifting machine extends into the bottom of the cold explosion liquid tank, and the other end extends out of the cold explosion liquid tank.
In one embodiment of the invention, the device further comprises a tray for carrying the material;
for surface-structured materials, the tray can be omitted.
A material tray recycling assembly for recycling the material tray is further arranged between the cold explosion part and the material inlet of the atmosphere replacement part, and the material tray recycling assembly comprises a material tray returning device and a material tray water sealing device for sealing an outlet of the material tray;
the tray returning device conveys the tray from the cold explosion part to the feed inlet of the atmosphere replacement part;
The tray water seal device is arranged at one side of the tray returning device, which is close to the atmosphere replacement part.
In one embodiment of the invention, the tray water seal device comprises a water tank body and a lifting conveyor belt,
The water tank body is arranged at one end of the tray returning device, which is far away from the cold explosion part;
the feeding port is provided with a turnover table, one end of the lifting conveyor belt is arranged at the bottom of the water tank body, and the other end of the lifting conveyor belt is arranged on the turnover table.
In one embodiment of the invention, the tray has a stop side and an inclined bottom;
An acute material positioning angle is formed between the stop side surface and the inclined bottom surface.
The crystal material clean pretreatment method is characterized by comprising the following steps of:
when the material platform is in a low-level state, feeding materials into the replacement bin from the feed inlet, and closing the feed inlet;
Isolating the replacement plenum and the front plenum;
Vacuumizing the replacement bin to a preset vacuum degree through the vacuum system;
introducing replacement gas into the replacement bin through the replacement gas pipeline, wherein the gas pressure of the replacement bin is balanced with that of the front bin;
The lifting material platform enters a high-level state and is communicated with the replacement bin and the front bin, and materials are sent into the front bin from the replacement bin;
Pushing material from the front bin into the heating part for heating;
the material is pushed out from the heating part and is cooled by water at the cold explosion part. .
And discharging materials from the cold explosion liquid tank through a lifting machine to enter a crushing procedure.
From the cold explosion, the tray returns to the next working cycle.
The beneficial effects of the invention are as follows: according to the crystal material cold explosion crushing clean pretreatment device and the crystal material clean pretreatment method, air entering in the feeding process is extracted through the atmosphere replacement part and replaced by inert gas, so that the crystal material is isolated from the air at a high temperature state and placed under a controllable atmosphere, and oxidation is avoided. And the continuous heating process can be realized through the stepping assembly arranged in the heating furnace body, so that large-scale industrial production can be realized. The stepping mode ensures that no metal transmission component exists in a high-temperature region of the system, avoids the pollution of metal ions released by the metal component at high temperature by adopting the traditional conveying mode to the heating crystal material, and realizes clean heating of PPM-level crystal material by configuring high-purity nonmetallic furnace lining materials. The cold explosion part is in butt joint with the heating furnace mouth, and the cold explosion liquid tank is in water sealing effect, so that the air tightness is ensured, the heated crystal material is not contacted with air before entering water, and the rapid water cooling without oxidation is realized. The tray realizes automatic return, enters the next working period, has high automation degree of the whole process and can automatically and circularly run. And the crystal material after pretreatment in the cold explosion liquid tank is directly lifted to the next station for crushing by a lifting machine, so that the clean crushing pretreatment of the crystal material is realized. For the material with regular surface, the device does not need to use a material disc, and the crystal material is directly fed from the feed inlet, so that the heating and quenching pretreatment is realized.
The high-value high-quality material (with the grain diameter of 6-50 mm) obtained by the pretreated broken silicon crystal material accounts for more than 97%, the secondary material less than or equal to 3mm accounts for only 1%, and the proportion of the high-quality material is improved by more than 10% compared with the traditional direct hammer breaking mode, so that the method has very remarkable economic benefit. And the total metal intake of the surface metal of the treated silicon crystal material is less than or equal to 5PPbw, which completely meets the impurity requirement of GB/T12963-2014 electronic grade polycrystalline silicon on 8 metals (Fe, cr, ni, cu, zn, al, K, na), and is lower than the traditional direct hammer breaking mode.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the internal structure of a first view angle of a crystal material crushing and cleaning pretreatment device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure of a second view angle of a crystal material crushing and cleaning pretreatment device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a tray according to an embodiment of the present invention;
Fig. 4 is a schematic view showing an internal structure of a heating section according to a third view angle of the embodiment of the present invention;
FIG. 5 is a schematic structural view of a cold explosion portion according to a third view angle provided by an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of a third view angle of the tray recycling assembly according to the embodiment of the present invention.
Icon: 010-an atmosphere replacement part; 030-a heating section; 050—cold explosion part; 070-material tray; 071-stop side; 073-tilting the bottom surface; 100-replacement bin; 200-front bin; 031-inlet end; 033-an outlet end; 110-a vacuum system; 130-a replacement gas supply tube; 150-lifting a material platform; 170-a feeding mechanism; 210-a furnace feeding mechanism; 310-heating a furnace body; 330-lining; 350-an electric heating element; 400-step assembly; 410-a step frame; 430-a step lifting mechanism; 450-horizontal displacement mechanism; 370-a water seal mechanism; 371-water seal circulation pipe; 411-a first horizontal slide; 431-a second horizontal slide; 451-horizontal telescoping members; 453-hinge lever; 413-a rack body; 415-walking beam; 417-pads; 500-dumping mechanism; 600-a cold explosion liquid tank; 510—a push head; 530-tilting the table; 810-a rear bin gate; 610-a steam processor; 630-circulating water pipe; 650-a lifter; 730-a material tray water seal groove; 711-a tray return push rod; 713-return channel; 731-a trough body; 733-lifting conveyor; 7311-a circulation feed tube; 800-a rear bin; 900-a turnover table; 035-correction mechanism.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Example 1
The present embodiment provides a crystal material crushing and cleaning pretreatment device, please refer to fig. 1 and 2, and the crystal material crushing and cleaning pretreatment device is used for crushing and pretreatment of a crystal material, especially for crushing and pretreatment of an existing silicon crystal material, and includes an atmosphere replacement part 010, a heating part 030, a cold explosion part 050 and a tray 070 for carrying the material (the material provided in the present embodiment is carried by using the tray 070, in other embodiments, the material can be carried by using the tray 070 instead of being carried by using the tray 070, and the regular material itself is directly used for crushing and cleaning pretreatment).
Referring to fig. 3, tray 070 has a stop side 071 and an inclined bottom 073; the stop side 071 and the inclined bottom surface 073 form an acute material positioning angle, and the material is loaded in the tray 070 and limited at the material positioning angle by gravity for the transport heating process.
The atmosphere replacement part 010 is provided with a feed port for material to enter, and the heating part 030 includes an inlet end 031 and an outlet end 033, and the atmosphere replacement part 010 is provided at the inlet end 031 for replacing air brought in when the material enters from the feed port with inert gas, so as to ensure that no oxidizing atmosphere exists in the heating part 030.
The cold explosive portion 050 is disposed at the outlet end 033 of the heating portion 030 for water-cooling the heated material.
Referring to fig. 1 and 2, in the present embodiment, the atmosphere replacement part 010 has a isolatable replacement chamber 100 and a front chamber 200; the feed inlet is arranged on the front side surface of the replacement chamber 100, one port of the front chamber 200 is communicated with the replacement chamber 100, and the other port is communicated with the heating part 030; the feeding door is arranged at the feeding hole in an openable and closable manner; the replacement plenum 100 is connected to a vacuum system 110 and a replacement gas supply tube 130.
Specifically, the front plenum 200 is disposed above the replacement plenum 100, a channel is disposed between the front plenum 200 and the replacement plenum 100, the channel is used for lifting the lifting platform 150, and the channel is in a closed state when the lifting platform 150 is at a high position or a low position. When the elevating platform 150 is at the lower position, the upper cover plate of the passage integrated with the elevating platform 150 is closed, the front chamber 200 is isolated from the passage of the replacement chamber 100, the feed gate is closed, the replacement chamber 100 is subjected to gas replacement through the vacuum system 110 and the replacement gas supply pipe 130, and the replacement is stopped after the pressure balance with the front chamber 200 is performed. The elevating platform 150 is elevated upward and the front plenum 200 is in channel communication with the replacement plenum 100.
Isolation of the system from the atmosphere may be achieved by the isolatable replacement plenum 100 and the forward plenum 200. When the elevating platform 150 is at the lower position, the upper and lower bin passage openings are in a closed state, and the air flow passages of the replacement bin 100 and the front bin 200 are blocked. After the material is fed into the replacement chamber 100 from the feed inlet, the feed inlet is closed, the replacement chamber 100 is vacuumized to a preset vacuum degree through the vacuum system 110, then the replacement gas is introduced into the replacement chamber 100 through the replacement gas supply pipe 130, the gas pressure of the replacement chamber 100 is balanced with that of the front chamber 200, at this time, the lifting material platform 150 is lifted upwards, the upper cover plate of the passage integrated with the lifting material platform 150 is opened, the gas flow passage of the replacement chamber 100 and the front chamber 200 is communicated, and the lifting material platform 150 is lifted to a high position. Material is fed from the replacement bin 100 into the front bin 200. The material is placed in a preset atmosphere before entering the heating part 030, in this embodiment, the displacement gas is inert gas, and the material is placed under the protection of oxygen-free or inert gas from the feed inlet to the discharge and water-in during the whole treatment process. High-temperature oxidation of the material is avoided.
The atmosphere replacement part 010 is provided with a lifting table 150, the lifting table 150 has a low-level state at the same height as the feed gate and a high-level state at the same height as the heating part 030, and a feed mechanism 170 is further provided in front of the feed port of the atmosphere replacement part 010. Specifically, when the lifting platform 150 is at a low position and the upper and lower bin passage openings are at a closed state, the replacement bin 100 is filled with air, after the pressure is balanced with the atmosphere, the feeding door is opened, the tray 070 containing materials is placed at a front station, and the feeding mechanism 170 sends the tray 070 into the replacement bin 100 at the station of the lifting platform 150 in a low position. The feed gate is closed, the air in the replacement chamber 100 is extracted and replaced with the inert gas, and after the pressure of the inert gas is balanced with the front chamber 200, the lift table 150 is moved from the low position to the high position, and the tray 070 is transferred from the replacement chamber 100 to the front chamber 200.
A furnace feeding mechanism 210 for pushing the material into the heating portion 030 is also provided in the front chamber 200; the charging mechanism 210 faces the elevating platform 150 in a high position.
Specifically, when lift table 150 reaches the high position, tray 070 is moved to front plenum 200 and positioned at an entry end 031 station to push material into heating portion 030 via furnace feed mechanism 210.
Referring to fig. 1 and 4, in the present embodiment, a heating part 030 includes a heating body 310, a liner 330 formed of a high purity nonmetallic material, an electric heating element 350, and a stepping assembly 400 for continuously conveying the material;
The heating furnace body 310 provides a mounting substrate, and the inner liner 330 and the electric heating element 350 are mounted in the heating furnace body 310, wherein the inner liner 330 is a composite masonry and a thermal insulation material for blocking heat dissipation in the heating part 030. The inner liner 330 forms a heating hearth cavity, the stepping assembly 400 forms the hearth bottom, and the electric heating element 350 is arranged in the hearth to be electrified for heating.
The step assembly 400 is disposed inside the heating furnace body 310, and the step assembly 400 includes a step frame 410, a step lifting mechanism 430 and a horizontal displacement mechanism 450; the stepper frame 410 includes a stepper beam 415 and a pad 417, specifically, the stepper beam 415 and the pad 417 are disposed at the uppermost end of the stepper assembly 400, and the stepper lifting mechanism 430 is disposed at the bottom of the stepper frame 410; the output end of the horizontal displacement mechanism 450 is connected with the stepping frame 410, and controls the stepping frame 410, the stepping beam 415 and the pad 417 to reciprocate.
In order to enable the stepping assembly 400 to reciprocate in the heating furnace body 310 and ensure the air tightness between the stepping beam 415 and the hearth of the lining 330, a working channel for the movement of the stepping frame 410 and a water seal mechanism 370 for sealing the channel are further arranged below the heating furnace body 310, dynamic sealing between the upper assembly of the stepping assembly 400 and the upper cavity of the heating furnace body 310 is ensured through the water seal mechanism 370, and the water seal mechanism 370 ensures the reliable water supply level through the water seal circulating pipe 371.
In this embodiment, the stepper frame 410 is a pedestal of the stepper beam 415 with pads 417 in a high temperature region above the stepper beam 415.
The stepper frame 410 is provided with a first horizontal sliding member 411 on a surface close to the stepper lifting mechanism 430, and the stepper lifting mechanism 430 is provided with a second horizontal sliding member 431 matched with the first horizontal sliding member 411.
The first horizontal slider 411 and the second horizontal slider 431 cooperate to guide the reciprocating movement of the stepper carriage 410 in a direction parallel to the line connecting the inlet end 031 and the outlet end 033. Specifically, the first horizontal sliding member 411 is a sliding block, the second horizontal sliding member 431 is a sliding rail parallel to the connection line between the inlet end 031 and the outlet end 033, and the sliding block is matched with the sliding rail, so that the stepping frame 410 can only move horizontally along a fixed track.
It should be noted that, in the present embodiment, the sliding fit between the sliding block and the sliding rail is adopted to implement the guiding, and in other embodiments, the guiding may be implemented by using a sliding groove, a bump wheel, a rail, or the like, which are all direct deformations of the guiding structure, and are also within the protection scope of the present invention.
The horizontal displacement mechanism 450 provided in this embodiment includes a horizontal extension member 451 and a hinge rod 453, where the horizontal extension member 451 provides power for the horizontal operation of the step frame 410, and is disposed at one end of the heating furnace body 310 near the outlet end 033, the horizontal extension member 451 has a tip capable of extending horizontally, the tip is hinged with one end of the hinge rod 453, and the other end of the hinge rod 453 is hinged with one side of the step frame 410. The use of an articulation ensures that the horizontal displacement mechanism 450 only provides the stepper carriage 410 with a horizontally acting motive force and does not limit the freedom of up and down movement during the stepping process.
It should be noted that, in the present embodiment, the horizontal displacement of the stepper frame 410 is achieved by arranging the horizontal extension member 451 at the end portion, and in other embodiments, a four-bar mechanism may be also used to achieve a parallel displacement track of the stepper frame 410, and the up-and-down displacement of the stepper frame 410 is achieved synchronously, so that the final purpose is to achieve the periodic stepping motion of the stepper beam 415.
In this embodiment, the stepper frame 410 includes a frame body 413, a stepper beam 415 and a pad 417, wherein the frame body 413 is directly connected with the stepper lift mechanism 430, the slider is also disposed on a surface of the frame body 413 close to the stepper lift mechanism 430, the stepper beam 415 is disposed on a surface of the frame body 413 far from the stepper lift mechanism 430, and the stepper beam 415 is used for supporting the tray 070. The lining 417 is arranged on the surface of the walking beam 415 far away from the frame body 413, the lining 417 is used for preventing the heat influence and heat loss of the steel structure of the walking beam 415 caused by high temperature in the furnace, and the lining 417 is made of high-purity nonmetallic materials, so that high clean heating is ensured.
Reciprocating within the heating portion 030 is provided by the stepper assembly 400. The tray 070 is moved step by step from the inlet end 031 to the outlet end 033 in the heating portion 030, and the tray 070 is heated gradually during the movement: the tray 070 is fed from the inlet end 031 to the heating unit 030 by the feeding mechanism 210, the stepping lifting mechanism 430 is lifted up after the feeding mechanism is in place, the stepping frame 410 assembly, the stepping beam 415 and the pad 417 are lifted up, the horizontal telescopic member 451 of the horizontal displacement mechanism 450 is also in an extended state, the tray 070 is lifted up by the stepping beam 415, the horizontal telescopic member 451 is retracted, the stepping frame 410, the stepping beam 415 and the upper pad 417 and the tray 070 are moved from the inlet end 031 to the outlet end 033, the stepping lifting mechanism 430 is lowered after the horizontal telescopic member 451 is retracted in place, the stepping frame 410 assembly, namely the stepping beam 415 and the pad 417, is lowered, and the tray 070 is stepped by one station. The stepping lifting mechanism 430 and the horizontal displacement mechanism 450 continuously run, the material tray 070 is sent to the conversion station step by step, a correction mechanism 035 is further arranged at the outlet end 033 of the heating part 030, and the correction mechanism 035 corrects the position of the material tray 070 on the conversion station, so as to eliminate the displacement error of the stepping assembly 400.
Referring to fig. 5, the cold explosion unit 050 includes a pouring mechanism 500 and a cold explosion liquid tank 600; the dumping mechanism 500 includes a pusher head 510 and a rotatable dumping platform 530; an outlet end 033 of the heating portion 030 is connected to the rear plenum 800; the dumping mechanism 500 is disposed within the aft plenum 800. The axis of the pusher head 510 and the axis of rotation of the pouring table 530 are perpendicular to the line connecting the inlet end 031 and the outlet end 033 of the heating portion 030, respectively. The pusher head 510 is disposed toward the tilting table 530; the cold blast liquid tank 600 is disposed below the tilting table 530. The pushing head 510 is fixedly connected with the rear bin gate 810, and the rear bin gate 810 is used for reducing the influence of heat radiation and heat transfer of the heating part 030 on the rear bin 800. Because the rear door 810 must be opened before the tray 070 can enter the pushing station, the pusher head 510 then pushes it onto the tiltable table 530. The rear door 810 is automatically in the closed position when the pusher is in place, so that the pusher head 510 is highly associated with the rear door 810, in this embodiment, the rear door 810 and the pusher head 510 are fixedly connected. When the rear door 810 is opened, the pushing head 510 is at a pushing position, and after the pushing head 510 is pushed in place, the rear door 810 automatically shields the discharge port of the heating part 030, and blocks radiant heat.
In order to ensure that the rear chamber 800 is free of oxidizing atmosphere, the outlet end 033 of the heating portion 030 is seamlessly connected with the rear chamber 800, the rear chamber 800 is a fully-closed space, air is isolated, and high-temperature oxidation of materials can be avoided.
Specifically, the pushing head 510 is retracted in place, the rear bin gate 810 is opened, the material tray 070 enters the pushing station, the material located on the station is pushed onto the pouring table 530 through the pushing head 510, the pouring table 530 is rotated and inclined by a certain angle, and the material of the material tray 070 is poured into the cold explosion liquid tank 600 located below the pouring table 530. The cold explosion liquid tank 600 is provided with a cold explosion liquid for cold explosion, and in this embodiment, the cold explosion liquid is water, and since the material is silicon crystal, the cold explosion liquid does not react with the water, so that water with lower cost can be directly adopted. In other embodiments, other cold explosion fluids may be used if the material reacts with water.
A steam vent is also provided above the cold explosion liquid tank 600, the steam vent leading to the steam processor 610, and condensate processed by the steam processor 610 reenters the cold explosion liquid tank 600. In order to ensure the temperature of the liquid in the cold explosion liquid tank 600, the cold explosion liquid tank 600 is also connected with a circulating water pipe 630, and the circulating water pipe 630 can realize automatic circulation according to the current temperature of the liquid in the cold explosion liquid tank 600, so as to ensure that the temperature of the cold explosion liquid in the cold explosion liquid tank 600 is in a low-temperature state.
A lifter 650 is further provided inside the cold explosion liquid tank 600, one end of the lifter 650 extends into the bottom of the cold explosion liquid tank 600, and the other end extends out of the cold explosion liquid tank 600. The cold exploded material is lifted out of the cold blast liquid tank 600 by the lifter 650 for a subsequent crushing process.
Referring to fig. 2,3 and 6, as mentioned above, the crystal material breaking and cleaning pretreatment device further includes a tray 070, it should be specifically noted that the material blocks with regular shapes do not need to be processed in the tray 070, and the material blocks in the figures are carried in the tray 070 in the atmosphere replacement part 010 and the heating part 030, and the material is not poured out from the tray 070 into the cold explosion liquid tank 600 until the material is poured on the pouring table 530. The empty tray 070 at this point needs to be recycled for the next cycle of load bearing material. Therefore, a recovery component for recycling the material tray 070 is arranged between the cold explosion part 050 and the feeding port, and the material tray 070 recovery component comprises a material tray return push rod 711, a return channel 713 for recycling the material tray 070 and a material tray water seal tank 730; the tray return means conveys the tray 070 from the cold explosion 050 to the feed port loading region. The tray water seal tank 730 is provided at one end of the tray returning device close to the atmosphere replacement part 010.
If a surface-sized block is treated, the tray 070 recovery assembly is not operative, as no tray is used for carrying the block.
Specifically, the tray returning device includes a tray returning push rod 711 and a returning channel 713, the returning channel 713 is a straight channel extending from the pouring platform 530 to the tray water seal groove 730, the tray returning push rod 711 is a push rod disposed at one end of the pouring platform 530 far away from the returning channel 713, the empty tray 070 discharged from the pouring platform 530 is sent into the returning channel 713 through the tray returning push rod 711, and the following tray 070 pushes the preceding tray 070 and is finally pushed into the tray water seal groove 730 in the continuous working process.
The tray water seal tank 730 comprises a water tank body 731 and a lifting conveyor belt 733, wherein the water tank body 731 is arranged at one end of the tray returning device, which is far away from the cold explosion part 050; one end of the lifting conveyor 733 is disposed at the bottom of the water tank 731, and the other end is disposed at the turntable 900. The water tank 731 is connected to a circulation liquid supply pipe 7311, and a sealing water level of the water tank 731 is ensured by the circulation liquid supply pipe 7311. The empty tray 070 is transported again by the water trough 731, inside the mould body via the lifting conveyor 733 onto the carousel 900 and via the carousel 900 to the feed opening for carrying new material for the next cycle.
According to the crystal material crushing and cleaning pretreatment device provided by the invention, air entering in the feeding process can be extracted through the atmosphere replacement part 010 and replaced by inert gas, and the atmosphere pressure before heating, during heating and in the rear bin 800 can be automatically regulated, so that the oxidation of the material at high temperature is avoided. By the step assembly 400 provided in the heating furnace body 310, the processing material can be continuously transported, and continuous heating can be realized. And, moreover, the method comprises the steps of. No metal component exists in the high temperature area, so that the pollution of metal ions is avoided, and the surface metal intake of the treated silicon crystal material is less than or equal to 5PPbw. Automatic circulation is achieved by manually loading the process material into the tray 070 on the turntable 900 from the material inlet to the tray back to the turntable 900 for a complete cycle. And the crystal material quenched in the cold explosion tank 600 is directly lifted to the next station by the lifter 650 for crushing treatment.
Example two
The embodiment provides a clean pretreatment method for crystalline materials, which uses the clean pretreatment device for crushing crystalline materials provided in the first embodiment, and comprises the following steps:
Loading material into an empty tray 070, feeding the empty tray 070 with material from a feed inlet into a replacement bin 100, and closing the feed inlet; at this time, the passages of the replacement chamber 100 and the front chamber 200 are automatically closed; vacuumizing the replacement chamber 100 to a preset vacuum degree through the vacuum system 110; introducing a replacement gas into the replacement chamber 100 through the replacement gas supply pipe 130, wherein the gas pressure of the replacement gas to the replacement chamber 100 is balanced with that of the front chamber 200, lifting the lifting table 150, communicating the replacement chamber 100 with the front chamber 200, and feeding materials from the replacement chamber 100 into the front chamber 200; the material is then pushed into the heating unit 030 from the front chamber 200 and heated.
The stepping assembly 400 is arranged in the heating part 030 to realize continuous material conveying from the inlet end 031 to the outlet end 033 of the heating part 030, when the material is conveyed to the outlet end 033 and is conveyed out through the discharge port, the material is conveyed to the pouring platform 530 through the pushing head 510, the pouring platform 530 pours the material into the cold explosion liquid tank 600, and water cooling is realized in the cold explosion liquid tank 600 of the cold explosion part 050.
The material is water cooled and then lifted by elevator 650 to the next station for subsequent processing. While the empty tray 070 is transferred via the tray return device into the tray water seal channel 730 close to the feed opening, whereupon the empty tray 070 is transported via the lifting conveyor 733 onto the turntable 900 and via the turntable 900 to the feed opening for the next cycle.
Example III
The embodiment provides a method for clean processing of crystalline material, which uses the device for clean pretreatment of crystalline material crushing provided in the first embodiment, and comprises the following steps:
The present case differs from case two in that no loading tray is required for processing the material. The tray return device does not need to work. Regular material is sent into the replacement bin 100 from the feed inlet, and the feed inlet is closed; at this time, the passages of the replacement chamber 100 and the front chamber 200 are automatically closed; vacuumizing the replacement chamber 100 to a preset vacuum degree through the vacuum system 110; the gas pressure of the replacement gas introduced into the replacement chamber 100 through the replacement gas supply pipe 130 to the replacement chamber 100 is balanced with the front chamber 200; lifting the elevating platform 150 to communicate the replacement bin 100 and the front bin 200, and feeding material from the replacement bin 100 into the front bin 200; the material is then pushed into the heating unit 030 from the front chamber 200 and heated.
The stepping assembly 400 is arranged in the heating part 030 to realize continuous material conveying from the inlet end 031 to the outlet end 033 of the heating part 030, when the material is conveyed to the outlet end 033 and is conveyed out through the discharge port, the material is conveyed to the pouring platform 530 through the pushing head 510, the pouring platform 530 pours the material into the cold explosion liquid tank 600, and water cooling is realized in the cold explosion liquid tank 600 of the cold explosion part 050.
The material is water-cooled and then lifted to the next station for subsequent crushing by the lifter 650, so as to realize crushing pretreatment operation.
According to the crystal material crushing and cleaning pretreatment device provided by the invention, the air entering in the feeding process can be extracted through the atmosphere replacement part 010 and replaced by inert gas, and the atmosphere pressure and flow in the heating process and the rear bin 800 can be automatically regulated before heating, so that the oxidation of the material at high temperature can be avoided. By the step assembly 400 provided in the heating furnace body 310, the processing material can be continuously transported, and continuous heating can be realized. And no metal component exists in a high-temperature area, so that the pollution of metal ions is avoided, the total metal intake of the surface metal of the treated silicon crystal material is less than or equal to 5PPbw, the impurity requirement of GB/T12963-2014 electronic grade polycrystalline silicon on 8 metals (Fe, cr, ni, cu, zn, al, K, na) is completely met, and the surface of the treated material is free from oxidation. The high-value high-quality material (with the grain diameter of 6-50 mm) obtained by the pretreated broken silicon crystal material accounts for more than 97%, the secondary material less than or equal to 3mm accounts for only 1%, and the proportion of the high-quality material is improved by more than 10% compared with the traditional direct hammer breaking mode, so that the method has very remarkable economic benefit. Automatic circulation is achieved by manually loading the process material into the tray 070 on the turntable 900 from the material inlet to the tray back to the turntable 900 for a complete cycle. And the crystal material quenched in the cold explosion tank 600 is directly lifted to the next station by the lifter 650 for crushing treatment. For regular village material, the material may be directly processed without using a tray 070.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. The crystal material crushing and cleaning pretreatment device is used for crushing and pretreatment of materials and is characterized by comprising an atmosphere replacement part, a heating part and a cold explosion part;
the atmosphere replacement part is provided with a feed inlet for entering materials; the atmosphere replacement part comprises a isolatable replacement bin and a front bin;
The feeding port is arranged in front of the replacement bin, one end of the front bin is communicated with the replacement bin, and the other end of the front bin is communicated with the heating part;
The replacement bin is used for connecting a vacuum system and a replacement gas supply pipeline, the front bin is arranged above the replacement bin, the bottom of the replacement bin is provided with a lifting material platform, the lifting material platform is in a low-level state with the same height as the feeding hole and in a high-level state with the same height as the heating part, and a furnace feeding mechanism for pushing materials into the heating part is further arranged in the front bin;
the furnace feeding mechanism is provided with a pushing station facing the lifting material table in the high-position state;
The heating part comprises an inlet end and an outlet end; the outlet end of the heating part is provided with a discharge hole;
the atmosphere replacement part is arranged at the inlet end of the heating part and is used for sucking, exhausting and replacing air adsorbed on the surface of the material and air entering from the channel during feeding with inert gas;
the cold explosion part is arranged at the outlet end of the heating part and is used for cooling the heated crystal material with water, and the cold explosion part comprises a cold explosion liquid tank.
2. The crystalline material crushing and cleaning pretreatment device according to claim 1, wherein a feed gate is provided at the feed inlet to be openable and closable.
3. The crystalline material crushing and cleaning pretreatment device of claim 1, wherein the heating section comprises a stepping assembly for horizontally conveying the material;
the stepping assembly comprises a stepping frame, a stepping lifting mechanism and a horizontal displacement mechanism;
the stepping lifting mechanism is arranged at the lower part of the stepping frame;
The horizontal displacement mechanism is connected with the stepping frame and is used for driving the stepping frame to reciprocate in the heating part in each stepping cycle.
4. The crystalline material crushing and cleaning pretreatment device according to claim 3, wherein a first horizontal sliding piece is arranged on one surface of the stepping frame, which is close to the stepping lifting mechanism, and a second horizontal sliding piece matched with the first horizontal sliding piece is arranged on the stepping lifting mechanism;
the first horizontal sliding piece is matched with the second horizontal sliding piece, and the stepping frame is guided to reciprocate along the connecting line of the inlet end and the outlet end.
5. The crystalline material crushing and cleaning pretreatment device according to claim 3, wherein the horizontal displacement mechanism comprises a horizontal telescopic member and a hinge rod;
The horizontal telescopic piece is provided with a head capable of horizontally stretching, the head is hinged with one end of the hinging rod, and the other end of the hinging rod is hinged with one side of the stepping frame.
6. The crystalline material crushing and cleaning pretreatment device of claim 3, wherein the heating part comprises a heating furnace body, the stepping assembly is arranged in the heating furnace body, a working opening for the stepping frame to enter is arranged below the heating furnace body,
And a water seal mechanism is arranged at the working opening.
7. The crystalline material crushing and cleaning pretreatment device according to claim 6, wherein the heating furnace body is provided with a lining formed by nonmetallic materials; the stepping frame comprises a stepping beam extending into the heating furnace body, and a liner formed by nonmetallic materials is arranged above the stepping beam.
8. The crystalline material crushing and cleaning pretreatment device according to claim 1, wherein the cold explosion part comprises a dumping mechanism;
the dumping mechanism comprises a pushing head and a rotatable dumping platform;
The dumping mechanism is arranged at one end of the discharge hole away from the heating part; the pushing head is arranged towards the dumping platform;
the cold explosion liquid tank is arranged below the tilting table.
9. The crystalline material crushing and cleaning pretreatment device of claim 8, wherein the pushing head is fixedly connected with a rear bin gate, and the rear bin gate is used for shielding and sealing the discharge port.
10. The crystalline material crushing and cleaning pretreatment device according to claim 8, wherein a lifting machine is further arranged in the cold explosion liquid tank, one end of the lifting machine extends into the bottom of the cold explosion liquid tank, and the other end extends out of the cold explosion liquid tank.
11. The crystalline material crushing and cleaning pretreatment device of claim 1, further comprising a tray for carrying material;
A material tray recycling assembly for recycling the material tray is further arranged between the cold explosion part and the feeding port of the atmosphere replacement part, and the material tray recycling assembly comprises a material tray returning device and a material tray water sealing device for sealing the material tray;
The tray returning device conveys the tray from the cold explosion part to the feed inlet of the atmosphere replacement part;
the tray water seal device is arranged at one end of the tray returning device, which is close to the atmosphere replacement part.
12. The crystalline material crushing and cleaning pretreatment device according to claim 11, wherein the material tray water seal device comprises a water tank body and a lifting conveyor belt,
The water tank body is arranged at one end of the tray returning device, which is far away from the cold explosion part;
the feeding port is provided with a turnover table, one end of the lifting conveyor belt is arranged at the bottom of the water tank body, and the other end of the lifting conveyor belt is arranged on the turnover table.
13. The crystalline material crushing and cleaning pretreatment device of claim 11, wherein the tray has a stop side surface and an inclined bottom surface;
An acute material positioning angle is formed between the stop side surface and the inclined bottom surface.
14. A method for clean pretreatment of crystalline material, characterized by using the crystalline material crushing clean pretreatment device according to any one of claims 2 to 4, comprising the steps of:
Feeding material from the feed inlet into the displacement chamber, and closing the feed inlet;
Isolating the replacement plenum and the front plenum;
Vacuumizing the replacement bin to a preset vacuum degree through the vacuum system;
Introducing a replacement gas into the replacement chamber through the replacement gas supply pipeline, wherein the gas pressure of the replacement gas to the replacement chamber is balanced with that of the front chamber;
Communicating the replacement plenum with the front plenum, feeding material from the replacement plenum into the front plenum;
Pushing material from the front bin into the heating part for heating;
Material is pushed out from the heating part and crushed at the cold explosion part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010210868.XA CN111420779B (en) | 2020-03-24 | 2020-03-24 | Crystal material crushing and cleaning pretreatment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010210868.XA CN111420779B (en) | 2020-03-24 | 2020-03-24 | Crystal material crushing and cleaning pretreatment device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111420779A CN111420779A (en) | 2020-07-17 |
| CN111420779B true CN111420779B (en) | 2024-09-20 |
Family
ID=71549025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010210868.XA Active CN111420779B (en) | 2020-03-24 | 2020-03-24 | Crystal material crushing and cleaning pretreatment device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111420779B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739289B (en) * | 2022-12-23 | 2023-07-04 | 安化县泰森循环科技有限公司 | Disassembling and crushing equipment and method for waste lithium batteries |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212237638U (en) * | 2020-03-24 | 2020-12-29 | 自贡佳源炉业有限公司 | Crystal material crushing and cleaning pretreatment device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07299379A (en) * | 1994-05-10 | 1995-11-14 | Fukuhara Imono Seisakusho:Kk | Garbage disposal and device therefor |
| DE19749127A1 (en) * | 1997-11-06 | 1999-05-20 | Wacker Chemie Gmbh | Crystal rod, especially a polycrystalline silicon rod for producing raw material for single crystal growth |
| JP2010167727A (en) * | 2009-01-26 | 2010-08-05 | Satake Corp | Pretreatment method in classifying material quality of waste plastic crushed piece |
| KR101393554B1 (en) * | 2012-05-10 | 2014-05-09 | 주식회사 이엔이티아이 | Food waste to produce a de-icing salt device and method for it's |
| CN102976333B (en) * | 2012-12-13 | 2014-07-09 | 青岛隆盛晶硅科技有限公司 | Method and equipment for controlled directional solidification and purification of polycrystalline silicon through taking tailing by graphite tube |
-
2020
- 2020-03-24 CN CN202010210868.XA patent/CN111420779B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212237638U (en) * | 2020-03-24 | 2020-12-29 | 自贡佳源炉业有限公司 | Crystal material crushing and cleaning pretreatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111420779A (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109306513B (en) | Material feeding device and crystal growth system | |
| CN103925791B (en) | A kind of vacuum furnace | |
| KR101279447B1 (en) | Flexible minimum energy utilization electric arc furnace system and processes for making steel products | |
| KR101707577B1 (en) | Heating and melting treatment device and heating and melting treatment method | |
| CN102183150B (en) | Quick feeding device for feeding waste steel into electric furnace and feeding method thereof | |
| KR101801504B1 (en) | Material conveying bucket, preheater, melting facility, and method of operating the same | |
| CN111420779B (en) | Crystal material crushing and cleaning pretreatment device and method | |
| CN110127997A (en) | Feeding device and hot bending shape equipment | |
| CN212237638U (en) | Crystal material crushing and cleaning pretreatment device | |
| RU2008127321A (en) | CONVEYOR UNIT, COMBINATION OF DEVICES AND METHOD FOR CONNECTING METALLURGICAL PROCESSES | |
| CN116103479A (en) | Vacuum double-chamber heat treatment furnace and working method thereof | |
| CN202401104U (en) | Box-type protective atmosphere heat treatment furnace | |
| KR102353899B1 (en) | Multi cell Continuous Heat Treatment Furnace | |
| CN202099316U (en) | Quick charging device for charging steel scrap into electric furnace | |
| CN211903716U (en) | Tunnel furnace capable of adjusting pressure of protective gas in furnace | |
| JP2008007829A (en) | Conveying device of vacuum heat treatment furnace | |
| CN109306514B (en) | Material feeding device and crystal growth system | |
| CN209918034U (en) | Automatic breaker of cubic material | |
| CN111910059A (en) | Vertical high vacuum heat treatment furnace | |
| CA2111756A1 (en) | Tilting mechanism for a dc arc furnace and process for discharging the furnace | |
| CN111921665B (en) | Annular material crushing treatment system and method | |
| KR100691851B1 (en) | Vacuum absorption device for transferring hot plate | |
| CN210036282U (en) | Feeder and contain stove of this feeder | |
| CN211872052U (en) | Gas-saving tunnel furnace with workpiece and conveying device having different access | |
| CN115055684B (en) | Diamond drill sintering device and forming method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |