CN215864604U - High-purity antimony reduction furnace - Google Patents
High-purity antimony reduction furnace Download PDFInfo
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- CN215864604U CN215864604U CN202121888487.3U CN202121888487U CN215864604U CN 215864604 U CN215864604 U CN 215864604U CN 202121888487 U CN202121888487 U CN 202121888487U CN 215864604 U CN215864604 U CN 215864604U
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Abstract
The utility model relates to the technical field of fine chemical production, and discloses a high-purity antimony reduction furnace which comprises a base and a furnace body arranged on the base, wherein the furnace body is hinged with the base and can rotate relative to a hinged shaft, a servo motor, a speed reducer and a transmission chain are arranged on the base, the servo motor is connected with the furnace body through the speed reducer and the transmission chain and used for controlling the rotation angle of the furnace body, a feeder, a hydrogen feeding pipe and a mixed ejector are fixedly connected to the furnace body, the feeder is connected with the mixed ejector through a first soft pipe, the hydrogen feeding pipe is connected with the mixed ejector, and the mixed ejector is connected with a feeding hole of the furnace body. Compared with the prior art, the high-purity antimony reduction furnace realizes automatic discharging by means of the gravity of antimony materials, overcomes the defects of the traditional siphon discharging, and is simple in equipment operation and high in safety; furnace body level sets up, and reaction raw materials blows in the furnace body through hydrogen in, avoids empting the raw materials and leads to the quartz capsule condition of breaking, has reduced the preparation risk.
Description
Technical Field
The utility model relates to the technical field of fine chemical production, in particular to a high-purity antimony reduction furnace.
Background
The high-purity antimony refers to metal antimony with the purity of more than 5N, is mainly used for preparing semiconductor materials, and can form compound semiconductors such as aluminum antimonide, gallium antimonide, indium antimonide and the like; also as a dopant for a single crystal of semiconductor germanium, silicon, or the like, to form an N-type semiconductor; in addition, the method can also be used for preparing other high-purity metal alloys.
The preparation of high-purity antimony is mainly realized through the processes of chlorination, rectification, reduction, distillation and the like. The traditional high-purity antimony reduction device is a vertical furnace body, a quartz tube and a reduction furnace are vertically arranged, raw materials and hydrogen enter from an upper end feeding tube, are subjected to gas-liquid distribution contact through a quartz packing ring and then react, are deposited below the quartz tube, a siphon is arranged below the quartz tube, and when the materials are discharged, the products flow out of the siphon to a material receiving boat.
The feeding mode of the existing antimony reduction furnace is unreasonable, so that a quartz tube is fragile, and a large ammonia risk exists; the whole reduction furnace has poor sealing performance and weak bearing capacity, and cannot be well adapted to industrial production; the reaction column is used as a reaction container but has no heat exchange jacket, and the heat generated by reaction heat release is accumulated, so that the gas inlet flow cannot be increased, and the production efficiency is also seriously influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a high-purity antimony reduction furnace which has the advantages of ingenious structural design, high preparation efficiency, low preparation risk and the like.
Based on this, the utility model provides a high-purity antimony reduction furnace, which comprises:
a base;
the furnace body is horizontally arranged on the base, and the furnace body is hinged with the base and can rotate relative to the hinged shaft;
the angle adjusting assembly is arranged on the base, connected with the furnace body and used for adjusting the rotation of the furnace body, and comprises a power device and a transmission device, and the power device is connected with the furnace body through the transmission device;
the feeding assembly is fixedly connected with the furnace body and comprises a feeder, a hydrogen feeding pipe and a mixing ejector, the feeder is connected with the mixing ejector through a first hose, the hydrogen feeding pipe is connected with the mixing ejector through a second hose, and the mixing ejector is connected with a feeding hole of the furnace body.
In some embodiments of the present application, a feed flow meter is disposed between the feeder and the first hose.
In some embodiments of the present application, a hydrogen flow meter is provided between the hydrogen feed pipe and the second hose.
In some embodiments of the present application, the feed assembly further comprises a controller electrically connected to the hydrogen flow meter and the feed flow meter, respectively.
In some embodiments of the present application, be equipped with the feed valve on the first hose, be equipped with the admission valve on the second hose, the controller still with the feed valve with the admission valve is connected.
In some embodiments of the present application, the power device is a servo motor.
In some embodiments of the present application, the transmission includes a reducer and a drive chain.
The embodiment of the utility model provides a high-purity antimony reduction furnace, which has the beneficial effects that compared with the prior art:
the utility model provides a high-purity antimony reduction furnace, which comprises a base and a furnace body arranged on the base, wherein the furnace body is hinged with the base and can rotate relative to a hinged shaft, an angle adjusting assembly is arranged on the base and connected with the furnace body and used for adjusting the rotation angle of the furnace body, specifically, the angle adjusting assembly comprises a power device and a transmission device, the power device is connected with the furnace body through the transmission device, a feeding assembly is fixedly connected with the furnace body, the feeding assembly comprises a feeder, a hydrogen feeding pipe and a mixing injector, the feeder is connected with the mixing injector through a first hose, the hydrogen feeding pipe is connected with the mixing injector through a second hose, and a discharge port of the mixing injector is connected with a feed port of the furnace body. Based on the structure, the mixing injector is fixedly connected with the furnace body after being connected with the feeder and the hydrogen feeding pipe, a plastic pipe is adopted to plug a discharge hole of the furnace body, a tail gas discharge pipe of the furnace body is communicated with the tail gas treatment device, hydrogen is conveyed into the mixing injector and the furnace body through the hydrogen feeding pipe, the furnace body is heated by adopting a gradient heating method, when the furnace temperature is heated to a set temperature, the feeding pipe is opened, antimony trichloride is introduced into the feeding pipe and heated, the antimony trichloride introduced into the mixing injector is fully mixed with the hydrogen in the mixing injector and enters the furnace body under the blowing of the hydrogen, and the antimony trichloride and the hydrogen in the furnace body are subjected to reduction reaction. And after the reaction of the antimony trichloride and the hydrogen in the furnace body is finished, the metal antimony flows out from the inner tube and is deposited in the outer tube, and after the reaction is finished, the feeding device and the valves on the hydrogen feeding pipe are closed to stop feeding. Preparing a charging barrel and taking down the plastic pipe at the discharge port, rotating the reduction furnace through the angle adjusting assembly to enable the reduction furnace to be changed into an inclined state from a horizontal state, wherein the antimony material in the furnace body flows out of the discharge port and falls into the charging barrel under the action of self gravity because the furnace body is in the inclined state, and the inclined state of the furnace body is maintained until the antimony material in the furnace body completely flows out. And after the completion, adjusting the angle of the furnace body again to enable the furnace body to return to the horizontal state, and repeating the process to realize the preparation of the high-purity antimony. Gas generated in the whole reaction process is discharged into the tail gas treatment device through the tail gas discharge pipe, and meanwhile, the furnace body is provided with the waste liquid pipe, so that waste liquid can be discharged from the waste liquid pipe regularly.
Therefore, the high-purity antimony reduction furnace realizes automatic discharging by means of the gravity of antimony materials, overcomes the defects of the traditional siphon discharging, avoids personnel from being splashed by high-temperature products in the discharging process, and is simple in equipment operation and high in safety; the mixing ejector is additionally arranged to receive the raw materials, and the raw materials participating in the reaction are fully mixed before entering the furnace body, so that the reaction efficiency can be effectively increased, the feeding amount can be increased conveniently, the productivity is improved, and the productivity is improved; the furnace body is horizontal level setting, and the raw materials of participation in the reaction are insufflated in the furnace body through hydrogen, have avoided directly empting the cracked condition of quartz capsule that reaction raw materials leads to in the furnace body, have reduced the preparation risk.
Drawings
FIG. 1 is a schematic structural diagram of a high purity antimony reduction furnace according to an embodiment of the present invention.
In the figure, 1, a base; 2. a furnace body; 3. a mixing injector; 4. a feeder; 5. a feed flow meter; 6. a first hose; 7. a hydrogen feed pipe; 8. a hydrogen gas flow meter; 9. a second hose; 10. a controller; 11. a servo motor; 12. a transmission chain.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
It should be understood that the terms "front", "rear", and the like are used herein to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "front" information may also be referred to as "rear" information, and "rear" information may also be referred to as "front" information without departing from the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a high purity antimony reduction furnace, which includes a base 1 and a furnace body 2 disposed on the base 1, wherein the furnace body 2 is hinged to the base 1 and can rotate relative to the hinge shaft, an angle adjusting assembly is disposed on the base 1 and connected to the furnace body 2 for adjusting a rotation angle of the furnace body 2, specifically, the angle adjusting assembly includes a power device and a transmission device, the power device is connected to the furnace body 2 through the transmission device, a feeding assembly is also fixedly connected to the furnace body 2, the feeding assembly includes a feeder 4, a hydrogen feeding pipe 7 and a mixing injector 3, the feeder 4 is connected to the mixing injector 3 through a first hose 6, the hydrogen feeding pipe 7 is connected to the mixing injector 3 through a second hose 9, and a discharge port of the mixing injector 3 is connected to a feed port of the furnace body 2.
Based on the structure, the mixing injector 3 is fixedly connected with the furnace body 2 after being connected with the feeder 4 and the hydrogen feeding pipe 7, a plastic pipe is adopted to seal a discharge hole of the furnace body 2, a tail gas discharge pipe of the furnace body 2 is communicated with the tail gas treatment device, hydrogen is conveyed into the mixing injector 3 and the furnace body 2 through the hydrogen feeding pipe 7, the furnace body 2 is heated by adopting a gradient heating method, when the furnace temperature is heated to a set temperature, the feeding pipe is opened, antimony trichloride is introduced into the mixing injector 3 and is heated, the antimony trichloride introduced into the mixing injector 3 is fully mixed with the hydrogen and enters the furnace body 2 under the blowing of the hydrogen, and the antimony trichloride and the hydrogen in the furnace body 2 are subjected to reduction reaction. And after the reaction of the antimony trichloride and the hydrogen in the inner tube of the furnace body 2 is finished, the metal antimony flows out of the inner tube and is deposited in the outer tube, and after the reaction is finished, the feeding device 4 and the valves on the hydrogen feeding tube 7 are closed to stop feeding. Then preparing a charging barrel and taking down the plastic pipe at the discharge port, rotating the reduction furnace through the angle adjusting assembly to enable the reduction furnace to be changed into an inclined state from a horizontal state, wherein the antimony material in the furnace body 2 flows out of the discharge port and falls into the charging barrel under the action of self gravity because the furnace body 2 is in the inclined state, and the inclined state of the furnace body 2 is maintained until the antimony material in the furnace body 2 completely flows out. After the completion, the angle of the furnace body 2 is adjusted again to return to the horizontal state, and the above process is repeated to realize the preparation of the high-purity antimony. Gas generated in the whole reaction process is discharged into the tail gas treatment device through the tail gas discharge pipe, and meanwhile, the furnace body 2 is provided with a waste liquid pipe which can regularly discharge waste liquid. Therefore, the high-purity antimony reduction furnace realizes automatic discharging by means of the gravity of antimony materials, overcomes the defects of the traditional siphon discharging, avoids personnel from being splashed by high-temperature products in the discharging process, and is simple in equipment operation and high in safety; the mixing ejector 3 is additionally arranged to receive the raw materials, and the raw materials participating in the reaction are fully mixed before entering the furnace body 2, so that the reaction efficiency can be effectively increased, the feeding amount can be increased conveniently, the capacity can be improved, and the productivity can be improved; the furnace body 2 is horizontally arranged, and the raw materials participating in the reaction are blown into the furnace body 2 through hydrogen, so that the condition that a quartz tube is broken due to the fact that the reaction raw materials are directly poured into the furnace body 2 is avoided, and the preparation risk is reduced; increase tail gas processing apparatus, tail gas pipeline direct access tail gas processing apparatus avoids hydrogen in the tail gas to meet high temperature, naked light and explode, and the reducible environmental pollution of tail gas processing system, recovery processing becomes the spent acid to recycle establishes the basis for industrial production.
Optionally, in order to guarantee the effect of blowing of the raw materials in the hydrogen to the mixing jet ejector 3 when using, in some embodiments of this application, mixing jet ejector 3 and second hose 9 are all parallel and furnace body 2 level setting, and from second hose 9 to mixing jet ejector 3 to furnace body 2 whole process steady reasonable again, are favorable to the hydrogen to send into furnace body 2 with the mixed raw materials in the mixing jet ejector 3 fast.
Further, in order to quickly determine the feeding ratio of hydrogen to antimony trichloride, in some embodiments of the present application, a feed flow meter 5 is provided between the feeder 4 and the first hose 6, and a hydrogen flow meter 8 is provided between the hydrogen feed pipe 7 and the second hose 9. In actual use, an operator can observe the feeding amount of the raw materials through the feeding flow meter 5 and the hydrogen flow meter 8 and timely confirm the feeding ratio of the two raw materials.
Obviously, still need in time to control hydrogen and antimony trichloride's input speed and feeding volume after confirming the feeding ratio, therefore, be equipped with the feed valve on the first hose 6, be equipped with the admission valve on the second hose 9, realize the regulation to the feeding degree through feed valve and admission valve, the opening and closing of manual control valve simultaneously can have the error unavoidably, in order to reduce the feeding error, promote the feeding precision, the feeding subassembly is still including locating flowmeter and valve side's controller 10, controller 10 respectively with hydrogen flowmeter 8, feed flowmeter 5, feed valve and admission valve electricity are connected, it can in time receive the flow information that the flowmeter collected and handle it, the feeding of different raw materialss is adjusted to the degree of opening of control flap afterwards, controller 10's mechanical regulation precision is high, the feeding error is little.
In addition, in order to realize the rotation of the furnace body 2, in the embodiment of the present invention, the power device is preferably a servo motor 11, the transmission device includes a speed reducer and a transmission chain 12, the servo motor 11 is disposed on the base 1, and an output shaft of the servo motor 11 is connected with a gear on the furnace body 2 through the transmission chain 12 and the speed reducer.
In summary, the utility model provides a high-purity antimony reduction furnace, which comprises a base and a furnace body arranged on the base, wherein the furnace body is hinged with the base and can rotate relative to a hinge shaft, an angle adjusting assembly is arranged on the base and connected with the furnace body and used for adjusting the rotation angle of the furnace body, the angle adjusting assembly comprises a servo motor, a speed reducer and a transmission chain, the servo motor is connected with the furnace body through the speed reducer and the transmission chain, a feeding assembly is also fixedly connected with the furnace body, the feeding assembly comprises a feeder, a hydrogen feeding pipe and a mixing injector, the feeder is connected with the mixing injector through a first hose, the hydrogen feeding pipe is connected with the mixing injector through a second hose, and a discharge port of the mixing injector is connected with a feed port of the furnace body. Compared with the prior art, the high-purity antimony reduction furnace realizes automatic discharging by means of the gravity of antimony materials, overcomes the defects of the traditional siphon discharging, avoids personnel from being splashed by high-temperature products in the discharging process, and is simple in equipment operation and high in safety; a mixing ejector is additionally arranged to receive the raw materials, and the raw materials participating in the reaction are fully mixed before entering the furnace body, so that the reaction efficiency can be effectively increased, the feeding amount can be increased conveniently, the capacity can be improved, and the productivity can be improved; the furnace body level sets up, and the raw materials of participating in the reaction have been avoided directly to toppling over the cracked condition of quartz capsule that the reaction raw materials leads to in the furnace body through hydrogen insufflates in the furnace body, have reduced the preparation risk.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A high-purity antimony reduction furnace is characterized by comprising:
a base;
the furnace body is horizontally arranged on the base, and the furnace body is hinged with the base and can rotate relative to the hinged shaft;
the angle adjusting assembly is arranged on the base, connected with the furnace body and used for adjusting the rotation of the furnace body, and comprises a power device and a transmission device, and the power device is connected with the furnace body through the transmission device;
the feeding assembly is fixedly connected with the furnace body and comprises a feeder, a hydrogen feeding pipe and a mixing ejector, the feeder is connected with the mixing ejector through a first hose, the hydrogen feeding pipe is connected with the mixing ejector through a second hose, and the mixing ejector is connected with a feeding hole of the furnace body.
2. The high purity antimony reduction furnace of claim 1 wherein a feed flow meter is positioned between said feeder and said first hose.
3. The high purity antimony reduction furnace of claim 2, wherein a hydrogen flow meter is provided between the hydrogen feed pipe and the second hose.
4. The high purity antimony reduction furnace of claim 3 wherein the feed assembly further comprises a controller electrically connected to the hydrogen flow meter and the feed flow meter, respectively.
5. The high purity antimony reduction furnace of claim 4, wherein a feed valve is provided on the first flexible pipe, an air inlet valve is provided on the second flexible pipe, and the controller is further connected to the feed valve and the air inlet valve.
6. The high purity antimony reduction furnace of claim 1, wherein the power plant is a servo motor.
7. The high purity antimony reduction furnace of claim 1, wherein the transmission comprises a speed reducer and a transmission chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888487.3U CN215864604U (en) | 2021-08-12 | 2021-08-12 | High-purity antimony reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888487.3U CN215864604U (en) | 2021-08-12 | 2021-08-12 | High-purity antimony reduction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215864604U true CN215864604U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121888487.3U Active CN215864604U (en) | 2021-08-12 | 2021-08-12 | High-purity antimony reduction furnace |
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| CN (1) | CN215864604U (en) |
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2021
- 2021-08-12 CN CN202121888487.3U patent/CN215864604U/en active Active
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