CN111889031B - Production device for preparing SiO powder - Google Patents
Production device for preparing SiO powder Download PDFInfo
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- CN111889031B CN111889031B CN202010745425.0A CN202010745425A CN111889031B CN 111889031 B CN111889031 B CN 111889031B CN 202010745425 A CN202010745425 A CN 202010745425A CN 111889031 B CN111889031 B CN 111889031B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/005—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the outlet side being of particular interest
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/007—Aspects relating to the heat-exchange of the feed or outlet devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
- B01J2219/00135—Electric resistance heaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a production device for preparing SiO powder, which comprises a heating furnace, a cooling recovery device and a heat recovery device, wherein the heating furnace and the cooling recovery device are connected through a first heat-preservation connecting pipe; compared with the traditional SiO production equipment, the continuous SiO production equipment can carry out continuous SiO production, improves the production efficiency and reduces the production cost, and particularly, the mixture of silicon powder and silicon dioxide powder is heated at high temperature by the heating furnace, the generated gaseous SiO is transferred to the cooling and recovering device, on one hand, the gaseous SiO transmitted in the inner cylinder is converted into powdery SiO by heat exchange through the water cooling pipe and is discharged through the discharge hole, the heat released by the phase change of the SiO is recovered through the water cooling pipe and the heat recovering device, the heat is fully utilized, the waste of the heat is reduced, and the energy is saved.
Description
Technical Field
The invention belongs to the technical field of chemical material production, and particularly relates to a production device for preparing SiO powder.
Background
The lithium ion battery is a novel battery with high voltage, high energy density and high cycle, and is the secondary battery which is most widely used at present, wherein the negative electrode material of the lithium ion battery is mainly made of carbon-based materials, including artificial graphite and natural graphite, but the artificial graphite and the natural graphite have low specific capacity and are not suitable for the development of the lithium ion battery, and the silicon material has high specific capacity and is a potential material capable of replacing graphite, wherein silicon monoxide is one of key research objects of people;
in the prior art, the production method of the silicon monoxide is to heat the mixture of the silicon powder and the silicon dioxide powder under the high-temperature vacuum condition, and cool and recover the generated gaseous silicon monoxide to obtain the silicon monoxide powder, but in the prior art, the whole production process is to add a material once, treat the material at a high temperature once, collect the product, and need to cool and recover and heat up again after each production is finished, so the production efficiency is low, and a large amount of heat can be wasted.
Disclosure of Invention
The invention aims to provide a production device for preparing SiO powder.
The technical problems to be solved by the invention are as follows:
in the prior art, the production method of silicon monoxide is to heat the mixture of silicon powder and silicon dioxide powder under the high-temperature vacuum condition, and cool and recover the generated gaseous silicon monoxide to obtain the silicon monoxide powder, but in the prior art, the whole production process is to add a material once, process at high temperature once, and collect the product, and after production is finished each time, the product needs to be cooled and recovered and heated again, so that the production efficiency is low, and a large amount of heat can be wasted.
The purpose of the invention can be realized by the following technical scheme:
a production device for preparing SiO powder comprises a heating furnace, a cooling recovery device and a heat recovery device, wherein the heating furnace and the cooling recovery device are connected through a first heat-preservation connecting pipe, and the cooling recovery device and the heat recovery device are connected through a second heat-preservation connecting pipe;
the heating furnace comprises a furnace body, wherein the inner space of the furnace body is divided into a feeding area, a heating area and a discharging area through a first partition plate and a second partition plate;
the side wall of the feeding area is connected with a feeding cylinder, a spiral feeding rod is rotatably mounted in the feeding cylinder, and one end of the spiral feeding rod is fixedly connected with the shaft extension end of a motor;
a blanking pipe is arranged on the first partition plate, and a valve is arranged on the blanking pipe;
a heating cylinder is arranged in the heating zone, an electric heating device is arranged in the heating cylinder, the bottom of the heating cylinder is connected with a material taking pipe, a valve is arranged on the material taking pipe, a plurality of first air outlet holes are formed in the upper side cylinder wall of the heating cylinder, a gap is reserved between the heating cylinder and the inner wall of the furnace body, a plurality of second air outlet holes are formed in the bottom of a second partition plate corresponding to the gap, the bottom of the furnace body is connected with an air outlet pipe, the air outlet pipe is connected with one end of a first heat-preserving connecting pipe and one end of a vacuumizing pipe, and the vacuumizing pipe is connected with a vacuumizing device;
the cooling recovery device comprises an outer cylinder and an inner cylinder which is coaxially and fixedly arranged in the outer cylinder, a spiral feeding rod is rotatably arranged in the inner cylinder, one end of the spiral feeding rod is fixedly connected with a second driving wheel, the second driving wheel is connected with a shaft extension of a second driving motor through a belt or a chain, a water-cooling pipe is arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder in a winding manner, one end of the water-cooling pipe is connected with a water inlet pipe, the other end of the water-cooling pipe is connected with a water outlet pipe, and the water outlet pipe is connected with one end of a second heat-insulation connecting pipe;
one end of the inner cylinder is connected with one end of a first heat-preservation connecting pipe through a feed inlet, and an opening and closing door is arranged on the outer cylinder;
the other end of the inner cylinder is connected with a collecting device through a discharge hole.
As a further scheme of the invention, a stirring rod is arranged in the feeding area, a plurality of stirring blades are fixedly arranged on the side wall of the stirring rod, a first driving wheel is fixedly sleeved at one end of the stirring rod and is connected with a shaft extension of a first driving motor through a belt, and the first driving motor is fixedly arranged on the furnace body.
As a further scheme of the invention, the heat recovery device comprises a heat exchange box, a heat exchange tube is arranged in the heat exchange box, one end of the heat exchange box is connected with one end of the second heat-preservation connecting tube, and the other end of the heat exchange box is connected with an air inlet of the exhaust fan.
As a further aspect of the present invention, the method for producing SiO powder by the apparatus is:
inputting a mixture of silicon powder and silicon dioxide powder into a feeding area through a feeding cylinder, and simultaneously starting a first driving motor to mix and stir the raw materials in the feeding area;
starting a vacuumizing device to vacuumize the heating area, starting an electric heating device to heat the heating cylinder, transferring the raw materials in the feeding area into the heating area through a blanking pipe after the raw materials are heated to a preset temperature, and continuing heating to the preset temperature after the materials are transferred;
the gaseous state silicon monoxide that generates gets into cooling recovery unit through first venthole, second venthole, outlet duct and first heat preservation connecting pipe, and the fashioned silicon monoxide of cooling in cooling recovery unit's inner tube passes through the transmission of spiral pay-off pole, then gets into collection device through the discharge gate, and the cooling water gets into heat recovery unit through outlet pipe and second heat preservation connecting pipe and carries out the heat exchange.
The invention has the beneficial effects that:
compared with the traditional SiO production equipment, the continuous SiO production can be carried out, the production efficiency is improved, and the production cost is reduced.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural view of an apparatus for producing SiO powder according to the present invention;
FIG. 2 is a schematic view of the structure of a heating furnace;
FIG. 3 is a schematic view of another angle of the furnace;
FIG. 4 is a schematic view of the structure of the cooling recovery apparatus;
fig. 5 is a schematic structural view of the heat recovery device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A production device for preparing SiO powder is shown in figures 1 to 5 and comprises a heating furnace 1, a cooling recovery device 2 and a heat recovery device 3, wherein the heating furnace 1 and the cooling recovery device 2 are connected through a first heat-preservation connecting pipe 4, and the cooling recovery device 2 and the heat recovery device 3 are connected through a second heat-preservation connecting pipe 5;
the heating furnace 1 comprises a furnace body 11, and the inner space of the furnace body 11 is divided by a first partition plate 12 and a second partition plate 13 to form a feeding area 14, a heating area 15 and a discharging area 16;
a stirring rod 113 is arranged in the feeding area 14, a plurality of stirring blades are fixedly mounted on the side wall of the stirring rod 113, a first driving wheel 114 is fixedly sleeved at one end of the stirring rod 113, the first driving wheel 114 is connected with a shaft extension of a first driving motor 115 through a chain or a belt, the first driving motor 115 is fixedly mounted on the furnace body 11, the side wall of the feeding area 14 is connected with a feeding cylinder 112, a spiral feeding rod is rotatably mounted in the feeding cylinder 112, and one end of the spiral feeding rod is fixedly connected with the shaft extension of the motor;
a blanking pipe 17 is arranged on the first partition plate 12, and a valve is arranged on the blanking pipe 17;
a heating cylinder 116 is arranged in the heating area 15, an electric heating device is arranged in the heating cylinder 116, a material taking pipe 111 is connected to the bottom of the heating cylinder, a valve is arranged on the material taking pipe 111, a plurality of first air outlet holes 19 are formed in the upper side cylinder wall of the heating cylinder 116, a certain gap is reserved between the heating cylinder 116 and the inner wall of the furnace body 11, a plurality of second air outlet holes 18 are formed in the bottom of a second partition plate 13 corresponding to the gap, an air outlet pipe 110 is connected to the bottom of the furnace body 11, the air outlet pipe 110 is connected with one end of a first heat-preserving connecting pipe 4 and one end of a vacuum-pumping pipe, and the vacuum-pumping pipe is connected with a vacuum-pumping device;
the cooling recovery device 2 comprises an outer cylinder 21 and an inner cylinder coaxially and fixedly arranged in the outer cylinder 21, a spiral feeding rod is rotatably arranged in the inner cylinder, one end of the spiral feeding rod is fixedly connected with a second driving wheel 22, the second driving wheel 22 is connected with a shaft extension of a second driving motor 23 through a belt or a chain, a water-cooling pipe is arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder in a winding manner, one end of the water-cooling pipe is connected with a water inlet pipe 28, the other end of the water-cooling pipe is connected with a water outlet pipe 25, and the water outlet pipe 25 is connected with one end of a second heat-insulation connecting pipe 5;
one end of the inner cylinder is connected with one end of the first heat-preservation connecting pipe 4 through a feed port 24, and an opening-closing door 26 is arranged on the outer cylinder 21, so that a worker can conveniently open and observe the running state of the water-cooling pipe;
the other end of the inner cylinder is connected with a collecting device through a discharge port 27;
the heat recovery device 3 comprises a heat exchange box 31, a heat exchange pipe 32 is arranged in the heat exchange box 31, one end of the heat exchange box 31 is connected with one end of the second heat-preservation connecting pipe 5, and the other end of the heat exchange box 31 is connected with an air inlet of an exhaust fan 33;
the method for producing SiO powder by the production device for preparing SiO powder comprises the following steps:
inputting a mixture of silicon powder and silicon dioxide powder into the feeding zone 14 through the feeding cylinder 112, and simultaneously starting the first driving motor 115 to mix and stir the raw materials in the feeding zone 14;
starting a vacuumizing device to vacuumize the heating area 15, starting an electric heating device to heat the heating cylinder 116, transferring the raw materials in the feeding area 14 into the heating area 15 through the blanking pipe 17 after the raw materials are heated to a preset temperature, and continuing heating to the preset temperature after the materials are transferred;
the gaseous state silicon monoxide that generates gets into cooling recovery unit 2 through first venthole 19, second venthole 18, outlet duct 110 and first heat preservation connecting pipe 4, and the fashioned silicon monoxide of cooling in cooling recovery unit 2's inner tube passes through the transmission of spiral feed rod, then gets into collection device through discharge gate 27, and gets into heat recovery unit 3 through outlet pipe 25 and second heat preservation connecting pipe 5 and carry out heat exchange, reduces thermal waste.
Compared with the traditional SiO production equipment, the continuous SiO production can be carried out, the production efficiency is improved, and the production cost is reduced.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (2)
1. The production device for preparing SiO powder is characterized by comprising a heating furnace (1), a cooling recovery device (2) and a heat recovery device (3), wherein the heating furnace (1) is connected with the cooling recovery device (2) through a first heat-preservation connecting pipe (4), and the cooling recovery device (2) is connected with the heat recovery device (3) through a second heat-preservation connecting pipe (5);
the heating furnace (1) comprises a furnace body (11), and the inner space of the furnace body (11) is divided into a feeding area (14), a heating area (15) and a discharging area (16) through a first partition plate (12) and a second partition plate (13);
the side wall of the feeding area (14) is connected with a feeding cylinder (112), a spiral feeding rod is rotatably mounted in the feeding cylinder (112), and one end of the spiral feeding rod is fixedly connected with the shaft extension end of a motor;
a blanking pipe (17) is arranged on the first partition plate (12), and a valve is arranged on the blanking pipe (17);
a heating cylinder (116) is arranged in the heating zone (15), an electric heating device is arranged in the heating cylinder (116), the bottom of the heating cylinder is connected with a material taking pipe (111), a valve is arranged on the material taking pipe (111), a plurality of first air outlet holes (19) are arranged on the upper side cylinder wall of the heating cylinder (116), a gap is reserved between the heating cylinder (116) and the inner wall of the furnace body (11), a plurality of second air outlet holes (18) are arranged at the bottom of a second partition plate (13) corresponding to the gap, the bottom of the furnace body (11) is connected with an air outlet pipe (110), the air outlet pipe (110) is connected with one end of a first heat-preserving connecting pipe (4) and one end of a vacuum-pumping pipe, and the vacuum-pumping pipe is connected with a vacuum-pumping device;
the cooling recovery device (2) comprises an outer cylinder (21) and an inner cylinder which is coaxially and fixedly arranged in the outer cylinder (21), a spiral feeding rod is rotatably arranged in the inner cylinder, one end of the spiral feeding rod is fixedly connected with a second driving wheel (22), the second driving wheel (22) is connected with an axial extension of a second driving motor (23) through a belt or a chain, a water cooling pipe is arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder in a winding manner, one end of the water cooling pipe is connected with a water inlet pipe (28), the other end of the water cooling pipe is connected with a water outlet pipe (25), and the water outlet pipe (25) is connected with one end of a second heat-insulating connecting pipe (5);
one end of the inner cylinder is connected with one end of a first heat-preservation connecting pipe (4) through a feed port (24), and an opening and closing door (26) is arranged on the outer cylinder (21);
the other end of the inner cylinder is connected with a collecting device through a discharge hole (27);
a stirring rod (113) is arranged in the feeding area (14), a plurality of stirring blades are fixedly mounted on the side wall of the stirring rod (113), a first driving wheel (114) is fixedly sleeved at one end of the stirring rod (113), the first driving wheel (114) is connected with a shaft extension of a first driving motor (115) through a belt, and the first driving motor (115) is fixedly mounted on the furnace body (11);
the method for producing SiO powder by the device comprises the following steps:
inputting a mixture of silicon powder and silicon dioxide powder into a feeding area (14) through a feeding cylinder (112), and simultaneously starting a first driving motor (115) to mix and stir the raw materials in the feeding area (14);
starting a vacuumizing device to vacuumize the heating area (15), starting an electric heating device to heat the heating cylinder (116), transferring the raw materials in the feeding area (14) into the heating area (15) through the blanking pipe (17) after heating to a preset temperature, and continuing heating to the preset temperature after the materials are transferred;
the gaseous state silicon monoxide that generates gets into cooling recovery unit (2) through first venthole (19), second venthole (18), outlet duct (110) and first heat preservation connecting pipe (4), and the fashioned silicon monoxide of cooling in the inner tube of cooling recovery unit (2) passes through the transmission of spiral feed rod, then gets into collection device through discharge gate (27), and the cooling water gets into heat recovery unit (3) through outlet pipe (25) and second heat preservation connecting pipe (5) and carries out the heat exchange.
2. The production device for preparing SiO powder of claim 1 wherein the heat recovery unit (3) comprises a heat exchange box (31), a heat exchange tube (32) is disposed in the heat exchange box (31), one end of the heat exchange box (31) is connected to one end of the second heat-insulating connecting tube (5), and the other end of the heat exchange box (31) is connected to an air inlet of an air blower (33).
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| CN202010745425.0A CN111889031B (en) | 2020-07-29 | 2020-07-29 | Production device for preparing SiO powder |
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| CN202010745425.0A CN111889031B (en) | 2020-07-29 | 2020-07-29 | Production device for preparing SiO powder |
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| CN111889031A CN111889031A (en) | 2020-11-06 |
| CN111889031B true CN111889031B (en) | 2022-04-22 |
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| CN112938987B (en) * | 2021-01-08 | 2023-12-05 | 江苏神汇半导体科技有限公司 | High-temperature phase change method for high-purity silicon dioxide |
| CN117486224A (en) * | 2023-12-28 | 2024-02-02 | 杭州嘉悦智能设备有限公司 | Silicon oxide production equipment and condensation collection method |
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| JP4731818B2 (en) * | 2004-02-10 | 2011-07-27 | 新日鉄マテリアルズ株式会社 | Method and apparatus for producing high-purity SiO solid |
| JP6156089B2 (en) * | 2012-12-10 | 2017-07-05 | 信越化学工業株式会社 | Silicon oxide and manufacturing method thereof, negative electrode, lithium ion secondary battery and electrochemical capacitor |
| JP6352917B2 (en) * | 2013-07-30 | 2018-07-04 | 東京印刷機材トレーディング株式会社 | SiOX powder manufacturing method and SiOX powder manufacturing apparatus |
| CN103395836B (en) * | 2013-08-15 | 2015-01-07 | 蚌埠中恒新材料科技有限责任公司 | Collecting device for silicon monoxide generated in process of smelting zircon sand by electric arc furnace |
| CN206442621U (en) * | 2016-11-14 | 2017-08-25 | 华天恒芯半导体（厦门）有限公司 | A kind of paster processes residual heat using device |
| CN209612922U (en) * | 2019-01-23 | 2019-11-12 | 南京新奥环保技术有限公司 | A kind of supercritical reaction device cooling anti-block apparatus |
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