CN116817599A - High-temperature vacuum reaction kettle circulating atmosphere system - Google Patents
High-temperature vacuum reaction kettle circulating atmosphere system Download PDFInfo
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- CN116817599A CN116817599A CN202310894928.8A CN202310894928A CN116817599A CN 116817599 A CN116817599 A CN 116817599A CN 202310894928 A CN202310894928 A CN 202310894928A CN 116817599 A CN116817599 A CN 116817599A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 146
- 230000001681 protective effect Effects 0.000 claims abstract description 118
- 238000007789 sealing Methods 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000012535 impurity Substances 0.000 claims description 12
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 5
- 239000011496 polyurethane foam Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims 2
- 238000005245 sintering Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 91
- 238000004880 explosion Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000012495 reaction gas Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a circulating atmosphere system of a high-temperature vacuum reaction kettle, which comprises the following components: the circulating atmosphere system main body comprises a cooler, a dust collector, a vacuum pump, a protective atmosphere part and a reaction atmosphere part which are sequentially communicated, wherein a tail gas treatment device is arranged between the vacuum pump and the protective atmosphere part, the cooler and the reaction atmosphere part are respectively communicated with the high-temperature reaction kettle, a gas sealing module is arranged on a stirring shaft of the high-temperature reaction kettle, and the gas sealing module is communicated with the protective atmosphere part. When the vacuum pump is used, the vacuum pump is started firstly, and the vacuum pump pumps air in the high-temperature reaction kettle through the dust collector, so that the inside of the high-temperature reaction kettle is in a vacuum state; the protective atmosphere part provides inert protective gas for the gas sealing module, so that the inert protective gas is filled in the gas sealing module, and can enter the high-temperature reaction kettle after leakage occurs, so that air is prevented from entering the high-temperature reaction kettle, and the sintering high-temperature vacuum reaction kettle can safely and stably run.
Description
Technical Field
The invention relates to the technical field of atmosphere control of a high-temperature sintering vacuum reaction kettle for lithium battery materials, in particular to a circulating atmosphere system of a high-temperature vacuum reaction kettle.
Background
The lithium battery material sintering high-temperature vacuum reaction kettle is used for carrying out vacuum high-temperature sintering on materials when in work, protective atmosphere and special atmosphere are required to be injected, and the sealing performance of the vacuum reaction kettle is very tested.
The high-temperature sintering reaction of the lithium battery material has very high requirements on the purity of the atmosphere, and the atmosphere in the high-temperature reaction kettle cannot contain active gases such as air, oxygen and the like, and inert protective gas and reaction gas required by the reaction need to be injected. The protective atmosphere is inert gases such as nitrogen, argon and the like, the protective atmosphere does not react, and the inert gases are pumped into a high-temperature reaction kettle and then pumped out by a vacuum pump, so that waste is caused. The lithium battery material high temperature vacuum reaction kettle has the advantages that the reaction environment needs to reach a certain vacuum degree, the sealing requirement is very high, the leakage risk exists in the vacuum mechanical sealing device of the rotating shaft, and in the high vacuum degree state, the sealing material has air permeability, so that air enters the high temperature reaction kettle to influence the material reaction. Therefore, there is a need for a high temperature vacuum reactor circulating atmosphere system that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a high temperature vacuum reaction vessel circulating atmosphere system comprising: the circulating atmosphere system comprises a cooler, a dust collector, a vacuum pump, a protective atmosphere part and a reaction atmosphere part which are sequentially communicated, wherein a tail gas treatment device is arranged between the vacuum pump and the protective atmosphere part, the cooler and the reaction atmosphere part are respectively communicated with a high-temperature reaction kettle, a gas sealing module is arranged on a stirring shaft of the high-temperature reaction kettle, and the gas sealing module is communicated with the protective atmosphere part.
According to the circulating atmosphere system of the high-temperature vacuum reaction kettle, the gas sealing module comprises an inner sealing device, a protective gas cover and a sealing protective control valve, the inner sealing device is arranged on the stirring shaft, the protective gas cover is arranged at the upper end of the high-temperature reaction kettle and sleeved on the inner sealing device, the protective gas cover is communicated with the protective atmosphere part, the protective gas cover is provided with an exhaust valve, and the sealing protective control valve is arranged between the protective gas cover and the protective atmosphere part.
According to the high-temperature vacuum reaction kettle circulating atmosphere system provided by the embodiment of the invention, a first main pipeline is arranged between the protective atmosphere part and the high-temperature reaction kettle, the gas sealing module is communicated with the first main pipeline through a first branch pipeline, and the sealing protective control valve is arranged on the first branch pipeline.
According to the high-temperature vacuum reaction kettle circulating atmosphere system disclosed by the embodiment of the invention, the reaction atmosphere part is communicated with the first main pipeline through the second branch pipeline, the second branch pipeline is provided with the reaction atmosphere control valve, the first main pipeline is provided with the protective atmosphere control valve, the protective atmosphere control valve is positioned at the front side of the first branch pipeline, the protective atmosphere part is communicated with the first main pipeline through the third branch pipeline, and the third branch pipeline is provided with the first check valve.
According to the high-temperature vacuum reaction kettle circulating atmosphere system provided by the embodiment of the invention, a second main pipeline is arranged between the vacuum pump and the protective atmosphere part, a fourth branch pipeline and a fifth branch pipeline are arranged on the second main pipeline, a second one-way valve is arranged on the fourth branch pipeline, an exhaust control valve is arranged on the fifth branch pipeline, the tail ends of the fourth branch pipeline and the fifth branch pipeline are communicated with the tail gas treatment device, a circulating pressure reducing control valve and an atmosphere impurity removing filter are respectively arranged on the second main pipeline, and the circulating pressure reducing control valve and the atmosphere impurity removing filter are positioned at the rear side of the fourth branch pipeline.
According to the high-temperature vacuum reaction kettle circulating atmosphere system provided by the embodiment of the invention, the high-temperature reaction kettle comprises an outer kettle body, an inner kettle body and an explosion-proof inner module, wherein the inner kettle body is arranged in the outer kettle body, the explosion-proof inner module is arranged between the inner kettle body and the outer kettle body, the explosion-proof inner module comprises a first steel wire layer, a second steel wire layer and a plurality of node supporting parts, the plurality of node supporting parts are arranged between the first steel wire layer and the second steel wire layer, two explosion-proof inner film layers are arranged between the first steel wire layer and the second steel wire layer, and a polyurethane foam layer is filled between the two explosion-proof inner film layers.
According to the high-temperature vacuum reaction kettle circulating atmosphere system disclosed by the embodiment of the invention, the node supporting part comprises a first vertical explosion-proof plate, a second vertical explosion-proof plate, a plurality of transverse telescopic rods, a first explosion-proof guide group and a second explosion-proof guide group, wherein the first vertical explosion-proof plate is arranged on a first steel wire layer, the second vertical explosion-proof plate is arranged on a second steel wire layer, the plurality of transverse telescopic rods are arranged between the first vertical explosion-proof plate and the second vertical explosion-proof plate, the first explosion-proof guide group is arranged on the inner wall of the first vertical explosion-proof plate, the second explosion-proof guide group is arranged on the inner wall of the second vertical explosion-proof plate, the second explosion-proof guide group is movably connected with the plurality of transverse telescopic rods, and a protective ring is arranged on the inner wall of the first vertical explosion-proof plate and the second vertical explosion-proof plate, and a protective telescopic cover is arranged between the two protective rings.
The first explosion-proof guide group comprises a first elastic guide seat, a second elastic guide seat, a guide telescopic rod and a plurality of guide frames, wherein the first elastic guide seat is arranged on the inner wall of the first vertical explosion-proof plate, the second elastic guide seat is arranged on the second explosion-proof guide group, the guide telescopic rod is arranged between the first elastic guide seat and the second elastic guide seat, the guide frames are uniformly distributed on the inner wall of the first vertical explosion-proof plate and are positioned around the first elastic guide seat, and the two vertical telescopic guide rods of the guide frames are respectively provided with a first guide roller body which is respectively in sliding connection with the outer guide walls of the first elastic guide seat and the second elastic guide seat.
According to the high-temperature vacuum reaction kettle circulating atmosphere system disclosed by the embodiment of the invention, the second explosion-proof guide group comprises a middle explosion-proof seat, a plurality of first oblique guide rods, a movable plate, an inner spring and a plurality of second oblique guide rods, wherein the middle explosion-proof seat is arranged on the inner wall of the second vertical explosion-proof plate, the second elastic guide seat is arranged on the middle explosion-proof seat, a plurality of angle guide holes are formed in the middle explosion-proof seat, the movable plate is arranged in the middle explosion-proof seat and is connected with the inner spring, one end of the first oblique guide rod passes through the angle guide holes and is hinged with the movable plate, the other end of the first oblique guide rod is hinged with the movable plate, one end of the second oblique guide rod is hinged with the middle explosion-proof seat, and the other end of the second oblique guide rod is provided with a second guide roller body which is in sliding connection with the inner wall of the middle explosion-proof seat.
According to the high-temperature vacuum reaction kettle circulating atmosphere system disclosed by the embodiment of the invention, the transverse telescopic rod comprises a transverse inner cylinder, a transverse inner rod, a transverse spring and a fixed cylinder, wherein the fixed cylinder is arranged on the inner wall of the second vertical explosion-proof plate, the transverse inner cylinder is arranged in the fixed cylinder, one end of the transverse inner rod is connected with the inner wall of the first vertical explosion-proof plate, the other end of the transverse inner rod is arranged in the transverse inner cylinder in a penetrating manner, the transverse spring is arranged on the transverse inner rod and abuts against the transverse inner cylinder, the transverse inner rod is provided with an outer hinge block, and the other end of the second inclined guide rod is connected with the outer hinge block.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a high-temperature vacuum reaction kettle circulating atmosphere system, which comprises: the circulating atmosphere system main body comprises a cooler, a dust collector, a vacuum pump, a protective atmosphere part and a reaction atmosphere part which are sequentially communicated, so that the vacuum pump is started when in use, and the vacuum pump pumps the interior of the high-temperature reaction kettle through the dust collector, so that the interior of the high-temperature reaction kettle is in a vacuum state, and high-temperature sintering is facilitated; the stirring shaft is used for stirring the inside of the high-temperature reaction kettle under the action of external power, and the protective atmosphere part is used for providing inert protective gas for the gas sealing module, so that the inert protective gas is filled in the gas sealing module, and can enter the high-temperature reaction kettle after leakage occurs, and the leakage condition of the gas sealing module can be judged according to the gas flow of the gas sealing module. Through the design of above-mentioned structure, use inert shielding gas to carry out the isolation with outside air, prevent in the air admission high temperature reation kettle, make sintering high temperature vacuum reation kettle can safe and stable operation.
2. The invention provides a high-temperature vacuum reaction kettle circulating atmosphere system, wherein the high-temperature vacuum reaction kettle circulating atmosphere system pumps out air in a high-temperature reaction kettle through a vacuum pump and then processes and discharges the air through a tail gas processing device, a reaction atmosphere part provides reaction gas required by reaction in the high-temperature reaction kettle, and a protective atmosphere part also provides inert protective gas in the high-temperature reaction kettle; and in the working process of the high-temperature reaction kettle, the vacuum pump pumps out mixed gas (residual reaction gas and inert protective gas) in the high-temperature reaction kettle, and after impurity removal treatment, the inert protective gas and the inert protective gas provided by the protective atmosphere part are conveyed to the high-temperature reaction kettle together, so that the recycling of the inert protective gas by the circulating atmosphere system is realized, and the production cost is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged schematic view of the portion a of fig. 1 according to the present invention.
Fig. 3 is an enlarged schematic view of the portion B of fig. 1 according to the present invention.
Fig. 4 is a schematic view of an internal structure of a node supporting portion according to the present invention.
Fig. 5 is an enlarged schematic view of the portion C of fig. 4 according to the present invention.
Fig. 6 is a schematic structural view of the protective telescopic hood according to the present invention.
Fig. 7 is a schematic structural view of a transverse telescopic rod according to the present invention.
Arrows in the figure indicate the flow direction of the gas.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, the present invention provides a circulating atmosphere system of a high-temperature vacuum reaction kettle, comprising: a main body 100 of a circulating atmosphere system, the main body 100 of the circulating atmosphere system comprises a cooler 2, a dust collector 3, a vacuum pump 4, a protective atmosphere part 7 and a reaction atmosphere part 8 which are communicated in sequence, wherein a high-temperature reaction kettle 1 is arranged between the cooler 2 and the reaction atmosphere part 8, the cooler 2 is communicated with the high-temperature reaction kettle 1, the reaction atmosphere part 8 is also communicated with the high-temperature reaction kettle 1, and a tail gas treatment device 5 is arranged between the vacuum pump 4 and the protective atmosphere part 7, and a gas sealing module is arranged on a stirring shaft 101 of the high-temperature reaction kettle 1 and is communicated with the protective atmosphere part 7 for sealing and protecting the high-temperature reaction kettle 1.
When in use, the vacuum pump 4 is started, and the vacuum pump 4 pumps air in the high-temperature reaction kettle 1 through the dust collector 3, so that the inside of the high-temperature reaction kettle 1 is in a vacuum state, and high-temperature sintering is convenient; the stirring shaft 101 stirs the inside of the high-temperature reaction kettle 1 under the action of external power, and the protective atmosphere part 7 provides inert protective gas for the gas sealing module, so that the gas sealing module is filled with the inert protective gas 71, and the inert protective gas enters the high-temperature reaction kettle 1 after leakage occurs, so that the leakage condition of the gas sealing module can be judged according to the gas flow of the gas sealing module.
Through the design of above-mentioned structure, use inert shielding gas to carry out the isolation with outside air, prevent that air from getting into in the high temperature reaction kettle 1, make sintering high temperature vacuum reaction kettle can safe and stable operation.
Wherein, the vacuum pump 4 pumps out the air in the high-temperature reaction kettle 1 and then processes and discharges the air through the tail gas processing device 5, the reaction atmosphere part 8 provides the reaction gas required by the reaction in the high-temperature reaction kettle 1, and the protective atmosphere part 7 also provides inert protective gas in the high-temperature reaction kettle 1; the vacuum pump 4 pumps out the mixed gas (the residual reaction gas and the inert protective gas) in the high-temperature reaction kettle 1 in the working process of the high-temperature reaction kettle 1, and after impurity removal treatment, the inert protective gas and the inert protective gas provided by the protective atmosphere part 7 are conveyed to the high-temperature reaction kettle 1 together, so that the recycling of the inert protective gas by the circulating atmosphere system is realized, and the production cost is reduced.
Exemplary gas seal Module
Further, in some embodiments of the present invention, a specific structure of a gas sealing module is provided, where the gas sealing module includes an inner sealing device 102, a protective gas cover 103, and a seal protection control valve 33, where the inner sealing device 102 is installed on the stirring shaft 101, where the inner sealing device 102 may be a mechanical sealing device in the prior art, so that the number of types of the mechanical sealing device is more, and thus the cost can be reduced;
the protective gas cover 103 is hermetically arranged at the upper end of the high-temperature reaction kettle 1 and sleeved on the inner sealing device 102, the protective gas cover 103 provides an external sealing effect on the inner sealing device 102, the protective gas cover 103 is communicated with the protective atmosphere part 7, and a sealing protective control valve 33 is arranged between the protective gas cover 103 and the protective atmosphere part 7; after the seal protection control valve 33 is opened, the inert protection gas is supplied into the protection gas hood 103 by the protection atmosphere part 7, and when the inner sealing device 102 leaks, the inert protection gas filled in the protection gas hood 103 enters through the inner sealing device 102, and then the gas flow rate passing through the seal protection control valve 33 changes, so that the leakage condition of the inner sealing device 102 can be judged according to the gas flow rate of the seal protection control valve 33.
Through the design of above-mentioned structure, use inert shielding gas to carry out the isolation with outside air, prevent that air from getting into in the high temperature reaction kettle 1, make sintering high temperature vacuum reaction kettle can safe and stable operation.
Further, a first main pipeline 91 is installed between the protective atmosphere part 7 and the high-temperature reaction kettle 1, the protective atmosphere part 7 is communicated with the first main pipeline 91 through a first branch pipeline 92, and meanwhile, the gas sealing module is communicated with the first main pipeline 91 through the first branch pipeline 92, so that inert protective gas provided by the protective atmosphere part 7 enters the first branch pipeline 92 through the first main pipeline 91 and then enters the protective gas cover 103. The seal protection control valve 33 is installed on the first branch pipe 92, so that the seal protection control valve 33 can monitor the flow of the inert protection gas, thereby realizing the judgment of the leakage condition of the inner seal device 102.
Further, the reaction atmosphere part 8 in some embodiments of the present invention is communicated with the first main pipeline 91 through the second branch pipeline 93, wherein the reaction atmosphere control valve 31 is installed on the second branch pipeline 93, the protective atmosphere control valve 32 is also installed on the first main pipeline 91, and the protective atmosphere control valve 32 is located at the front side of the first branch pipeline 92, so after the protective atmosphere control valve 32 is started, the inert protective gas provided in the protective atmosphere part 7 can continue to enter the first main pipeline 91 through the protective atmosphere control valve 32 until the high temperature reaction kettle 1;
after the reaction atmosphere control valve 31 is started, the reaction gas provided in the reaction atmosphere part 8 enters the first main pipeline 91 through the reaction atmosphere control valve 31, and then enters the high-temperature reaction kettle 1 through the first main pipeline 91, and through the design of the structure, the inert shielding gas and the reaction gas are conveyed, and the protection is provided for the high-temperature reaction kettle 1.
Further, the protective atmosphere part 7 in some embodiments of the present invention is communicated with the first main pipeline 91 through the third branch pipeline 94, and the first check valve 36 is installed on the third branch pipeline 94, so that when the first check valve 36 is started, the inert protective gas in the protective atmosphere part 7 enters into the first main pipeline 91 through the first check valve 36 and is conveyed into the high-temperature reaction kettle 1 for protection.
Further, in some embodiments of the present invention, a second main pipe 95 is installed between the vacuum pump 4 and the protective atmosphere part 7, and here, a fourth sub pipe 96 and a fifth sub pipe 97 are also installed on the second main pipe 95, wherein a second check valve 37 is installed on the fourth sub pipe 96, an exhaust control valve 35 is installed on the fifth sub pipe 97, and the ends of the fourth sub pipe 96 and the fifth sub pipe 97 are communicated with the exhaust gas treatment device 5. Further, the second main line 95 is provided with a circulation pressure reducing control valve 34 and an atmosphere impurity removing filter 6, respectively, and the circulation pressure reducing control valve 34 and the atmosphere impurity removing filter 6 are located at the rear side of the fourth branch line 96.
Through the design of the structure, according to whether the reacted gas can be recycled, the gas discharge or circulation is controlled through the circulation pressure reducing control valve 34 and the exhaust control valve 35, the quantity and the pressure of the circulating gas are controlled through the circulation pressure reducing control valve 34 during circulation, the redundant circulating gas can be discharged through the second one-way valve 37, the circulating gas is subjected to the removal of the gas and impurities affecting the reaction through the atmosphere impurity removing filter 6, and the circulating gas is connected back to the second main pipeline 95 and the first main pipeline 91 for recycling.
Exemplary explosion-proof inner Module
The internal pressure of the high-temperature reaction kettle 1 is inevitably excessive in the use process. If the explosion-proof performance of the existing high-temperature reaction kettle is poor, explosion fragments are easily generated due to explosion in the processing process, and the personal and property safety is damaged, so that improvement on the high-temperature reaction kettle is necessary to further improve the safety of the processing process.
As shown in fig. 3 to 7, further, in some embodiments of the present invention, there is provided a concrete structure of a high temperature reaction kettle 1, the high temperature reaction kettle 1 of which comprises an outer kettle body 11, an inner kettle body 12, and an explosion-proof inner module 13, in which the inner kettle body 12 is installed inside the outer kettle body 11 in such a manner that the high temperature reaction kettle 1 is of a double-layer structure, and an explosion-proof inner module 13 is installed between the outer kettle body 11 and the inner kettle body 12, and the high temperature reaction kettle 1 is further protected by the explosion-proof inner module 13 to prevent the whole high temperature reaction kettle 1 from bursting to damage personal and property safety when explosion occurs;
the explosion-proof inner module 13 here comprises a first steel wire layer 14, a second steel wire layer 15 and a plurality of node supporting parts 16, wherein the first steel wire layer 14 and the second steel wire layer 15 are arranged between the outer kettle body 11 and the inner kettle body 12, specifically, the first steel wire layer 14 is arranged on the inner wall of the outer kettle body 11, the second steel wire layer 15 is arranged on the inner wall of the inner kettle body 12, the plurality of node supporting parts 16 are respectively arranged between the first steel wire layer 14 and the second steel wire layer 15 and are used for carrying out internal supporting on the first steel wire layer 14, the second steel wire layer 15 and the outer kettle body 11 and the inner kettle body 12, and in order to further increase the explosion-proof performance of the structure, two explosion-proof inner film layers 140 are also arranged between the first steel wire layer 14 and the second steel wire layer 15, the polyurethane foam layer 10 is filled between the two explosion-proof inner film layers 140, the first steel wire layer 14 and the second steel wire layer 15 are used as fixing mechanisms to fix the two internal explosion-proof inner film layers 140 and the polyurethane foam layer 10, the two explosion-proof inner film layers 140 can be used for adhering and fixing the first steel wire layer 14 and the second steel wire layer 15, the impact bearing capacity of the first steel wire layer 14 and the second steel wire layer 15 is greatly increased, the node supporting part 16 supports the whole explosion-proof inner module 13, the impact resistance during explosion is increased, and the explosion-proof fragments are generated after the whole high-temperature reaction kettle 1 bursts during explosion, so that the personal and property safety is damaged.
Further, the above-mentioned node support portion 16 includes a first vertical explosion-proof plate 17, a second vertical explosion-proof plate 18, a plurality of horizontal telescopic rods 19, a first explosion-proof guide group 20, and a second explosion-proof guide group 21, where the first vertical explosion-proof plate 17 is installed on the first steel wire layer 14, the second vertical explosion-proof plate 18 is installed on the second steel wire layer 15, and a plurality of horizontal telescopic rods 19 are installed between the first vertical explosion-proof plate 17 and the second vertical explosion-proof plate 18, so that after the first steel wire layer 14 is impacted, an impact force can be transferred to the first vertical explosion-proof plate 17, and then the first vertical explosion-proof plate 17 is transferred to the second vertical explosion-proof plate 18 through the plurality of horizontal telescopic rods 19, where, in order to reduce the energy of the impact force, the first explosion-proof guide group 20 is installed on the inner wall of the first vertical explosion-proof plate 17, and the second explosion-proof guide group 21 is installed on the inner wall of the second vertical explosion-proof plate 18, and the second explosion-proof guide group 21 is movably connected with the plurality of horizontal telescopic rods 19, so that the impact force can be simultaneously reduced to the outside through the plurality of horizontal telescopic rods 19, the first explosion-proof guide group 20, and the second explosion-proof guide group 11. Further, the protective rings 160 are installed on the inner walls of the first vertical explosion-proof plate 17 and the second vertical explosion-proof plate 18, and the protective telescopic cover 161 is installed between the two protective rings 160, and the plurality of transverse telescopic rods 19, the first explosion-proof guide group 20 and the second explosion-proof guide group 21 are wrapped through the protective telescopic cover so as to interfere the components through the anti-collision polyurethane foam layer 10, so that the overall protective performance of the anti-explosion inner module 13 is improved.
Further, in some embodiments of the present invention, the specific structure of the first explosion-proof guide group 20 is provided, through the first explosion-proof guide group 20 of the structure, the impact force transmitted by the first vertical explosion-proof plate 17 is counteracted, specifically, the first explosion-proof guide group 20 includes a first elastic guide 201, a second elastic guide 202, a guiding telescopic rod 203 and a plurality of guiding frames 204, wherein the first elastic guide 201 is mounted on the inner wall of the first vertical explosion-proof plate 17, and the second elastic guide 202 is mounted on the second explosion-proof guide group 21, so that when the first explosion-proof guide group 20 is impacted, the first elastic guide 201 moves towards the second elastic guide 202, and since the guiding telescopic rod 203 is mounted between the first and second explosion-proof guide groups, the guiding inner rod 2031 in the guiding telescopic rod 203 moves along the guiding inner cylinder 2032, thereby providing a guiding function for the movement of the first elastic guide 201 and preventing the first elastic guide 201 from being askew, so that the movement of the first explosion-proof guide group 20 is increased;
further, the plurality of guide frames 204 are uniformly distributed on the inner wall of the first vertical explosion-proof plate 17 and are located around the first elastic guide frame 201, so that the first elastic guide frame 201 extrudes the guide frames 204 in the moving process, so that the first guide roller 205 on the vertical telescopic guide rod 2041 moves upwards on the convex outer guide wall of the first elastic guide frame 201, and further, the vertical telescopic guide rod 2041 contracts along with the movement of the first elastic guide frame 201, and similarly, the second elastic guide frame 202 extrudes the vertical telescopic guide frame 2041, so that the first guide roller 205 on the vertical telescopic guide rod 2041 moves upwards on the convex outer guide wall of the second elastic guide frame 202, and further, along with the movement of the second elastic guide frame 202, the vertical telescopic guide frame 2041 contracts, and by the design of the structure, the transverse impact energy generated inside is converted from the transverse direction to the vertical direction, so as to reduce the impact energy of the transverse force to the outer kettle body 12, even if the top of the outer kettle body 12 occurs, the whole high-temperature kettle 1 is greatly increased in the transverse direction, and the explosion of the safety of the kettle body 12 is prevented from being greatly damaged in the transverse direction, and the explosion of the kettle body is greatly generated, and the safety of the explosion of the kettle body is prevented.
Further, in some embodiments of the present invention, the second explosion-proof guide set 21 includes a middle explosion-proof seat 211, a plurality of first inclined guide rods 212, an inner moving plate 213, an inner spring 214, and a plurality of second inclined guide rods 215, wherein the middle explosion-proof seat 211 is mounted on an inner wall of the second vertical explosion-proof plate 18, the second elastic guide seat 202 is mounted on the middle explosion-proof seat 211, a plurality of angle guide holes 216 are formed in the middle explosion-proof seat 211, the inner moving plate 213 is mounted in the middle explosion-proof seat 211 and connected with the inner spring 214, one end of the first inclined guide rod 212 passes through the angle guide holes 216 and is hinged with the inner moving plate 213, the other end is hinged with the transverse telescopic rod 19, and one end of the second inclined guide rod 215 is hinged with the middle explosion-proof seat 211;
therefore, when the horizontal telescopic rod 19 and the second explosion-proof guide group 21 are impacted, the horizontal telescopic rod 19 performs a shrinking action, and then the second explosion-proof guide group 21 performs a shrinking action after the horizontal telescopic rod 19 performs a shrinking action, the first inclined guide rod 212 pushes the inner moving plate 213 through the angle guide hole 216, the inner moving plate 213 pulls the inner spring 214 and simultaneously presses the second inclined guide rod 215, the inner spring 214 helps the inner moving plate 213 to return to the original position, and the second inclined guide rod 215 slides along the inner wall of the middle explosion-proof seat 211, wherein the second inclined guide rod 215 is provided with the second guide roller 217 at the other end, so that a guiding action is provided for the second inclined guide rod 215 through the second guide roller 217, the movement of the inner moving plate 213 is very stable, and the transverse impact energy generated inside can also be guided to the vertical direction from the transverse conversion direction, so as to further cooperate with the conversion function of the first explosion-proof guide group 20, thereby greatly increasing the safety of the high-temperature reaction kettle 1, and preventing the human body from being damaged by explosion and property fragments in the transverse direction when the high-temperature reaction kettle 1 occurs in the outside the 12.
Further, in some embodiments of the present invention, a specific structure of the transversely telescopic rod 19 is provided, where the transversely telescopic rod 19 includes a transversely inner cylinder 191, a transversely inner rod 192, a transversely spring 193, and a fixed cylinder 194, where the fixed cylinder 194 is mounted on an inner wall of the second vertical explosion-proof plate 18, and the transversely inner cylinder 191 is mounted in the fixed cylinder 194, the fixed cylinder 194 provides a fixed support for the transversely inner cylinder 191 to prevent the transversely inner cylinder 191 from being skewed, one end of the transversely inner rod 192 is connected to an inner wall of the first vertical explosion-proof plate 17, and the other end is in the transversely inner cylinder 191, and the transversely spring 193 is mounted on the transversely inner rod 192 and abuts against the transversely inner cylinder, so that when the transversely inner rod 192 moves toward the transversely inner cylinder 191, the transversely inner rod 192 is pressed, and then the transversely spring 193 generates an elastic force to offset impact energy, and an outer hinge block 195 is mounted on the transversely inner rod 192, where the other end of the first diagonal guide rod 212 is connected to the outer hinge block 195, so that when the transversely inner rod 192 moves, the outer hinge block 195 is driven, and the first diagonal guide rod 212 moves toward the inner seat 211;
the above-mentioned horizontal telescopic rod 19 is used together with the second explosion-proof guide group 21, so that the node supporting portion 16 can convert the horizontal impact energy generated in the inside of the outer kettle body 12 from horizontal to vertical, so as to reduce the horizontal impact energy and continuously impact the outer kettle body 12, thereby greatly increasing the safety of the high-temperature reaction kettle 1 and preventing the outer kettle body 12 from generating explosion fragments in the horizontal direction to damage personal and property safety when the high-temperature reaction kettle 1 explodes.
Further, the high-temperature vacuum reaction kettle circulating atmosphere system provided by the invention also has various control schemes, such as: (1) starting up to pre-vacuumize; (2) the reaction atmosphere and the protective atmosphere are required to be recyclable; (3) the reaction atmosphere and the protective atmosphere are required to be non-recyclable; (4) only the protective atmosphere is required to be recyclable; (5) only the protective atmosphere is required to be non-recyclable.
(1) Starting up and pre-vacuumizing: the purpose is to exhaust the air in the high-temperature reaction kettle 1, the sealing structure, each device and the pipeline; after the materials are put into the high-temperature reaction kettle, the materials are started, the materials are only driven into the protective atmosphere part 7, the protective atmosphere control valve 32, the sealing protective control valve 33 and the exhaust control valve 35 are opened, the exhaust valve 104 is opened, the air in the protective gas hood 103 is exhausted and then closed, the vacuum pump 4 is started to exhaust the air in the high-temperature reaction kettle 1, the concentration of the atmosphere of the exhaust gas port is detected, after the concentration of the atmosphere of the exhaust gas port is reached, the circulating pressure reducing control valve 34 is opened for a period of time and then closed, the residual air in the pipeline is exhausted, and the oxygen content in the high-temperature reaction kettle 1 is detected to reach the requirement and then the next production is carried out.
(2) The reaction atmosphere and the protective atmosphere are required to be recyclable: after starting up the pre-vacuum, the reaction atmosphere control valve 31 is opened to control the driving amount of the reaction atmosphere part 8, the exhaust control valve 35 is closed, the circulation pressure reducing control valve 34 is opened, the atmosphere circulates, the reacted atmosphere adsorbs and removes impurities from the gas influencing the reaction through the atmosphere impurity removing filter 6, the gas meets the requirement for recycling, when the condition that the circulating gas is unqualified is detected, the exhaust control valve 35 is opened, the circulation pressure reducing control valve 34 is closed, and the unqualified gas is discharged to the tail gas treatment device 5 for discharging.
(3) The reaction atmosphere and the protective atmosphere are required to be not circulated, and the exhaust gas is exhausted to the exhaust gas treatment device 5 by opening the exhaust gas control valve 35 and closing the circulation pressure reducing control valve 34 in the same manner as the gas is injected.
(4) Only the protective atmosphere is required to be recyclable: the reaction atmosphere portion 8 is not driven in the same manner as in (2).
(5) Only the protective atmosphere is required to be non-recyclable: the reaction atmosphere portion 8 is not driven in the same manner as in (2).
Further, when the dynamic vacuum pumping is performed, the flow rate of the gas pumped into the high-temperature reaction kettle 1 is controlled by the reaction atmosphere control valve 31 and the protective atmosphere control valve 32, and the pumping amount is far smaller than the pumping amount of the vacuum pump 4, so that the atmosphere can reach a vacuum state.
And (3) detecting the sealing atmosphere protection leakage: opening the seal protection control valve 33 and the exhaust control valve 35, opening the exhaust valve 104, discharging air of the protection gas hood 103, and closing the exhaust valve, wherein a tiny leakage amount exists when the inner sealing device 102 works normally, when the inner sealing device 102 is damaged and leaked, the leakage amount can be increased, and whether the inner sealing device 102 leaks is judged by detecting flow change through the protective atmosphere control valve 32; when the inner sealing device 102 leaks, the system controls the driving amount of the deceleration protective atmosphere control valve 32, so that the sum of the flow rates of the protective atmosphere control valve 32 and the sealing protective control valve 33 is always consistent as much as possible, and the vacuum degree in the high-temperature reaction kettle 1 is prevented from being greatly changed, and the material reaction is prevented from being influenced.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present 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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A high temperature vacuum autoclave circulating atmosphere system, comprising:
the circulating atmosphere system main body (100), circulating atmosphere system main body (100) is including cooler (2), dust collector (3), vacuum pump (4), protective atmosphere portion (7), reaction atmosphere portion (8) that communicate in proper order, be provided with tail gas treatment device (5) between vacuum pump (4), the protective atmosphere portion (7), cooler (2), reaction atmosphere portion (8) communicate with high temperature reaction kettle (1) respectively, be provided with gas seal module on (101) of high temperature reaction kettle (1), gas seal module communicates with protective atmosphere portion (7).
2. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 1, wherein the gas sealing module comprises an inner sealing device (102), a protective gas cover (103) and a sealing protection control valve (33), the inner sealing device (102) is arranged on a stirring shaft (101), the protective gas cover (103) is arranged at the upper end of the high-temperature reaction kettle (1) and sleeved on the inner sealing device (102), the protective gas cover (103) is communicated with the protective atmosphere part (7), an exhaust valve (104) is arranged on the protective gas cover (103), and the sealing protection control valve (33) is arranged between the protective gas cover (103) and the protective atmosphere part (7).
3. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 2, wherein a first main pipeline (91) is arranged between the protective atmosphere part (7) and the high-temperature reaction kettle (1), the gas sealing module is communicated with the first main pipeline (91) through a first sub-pipeline (92), and the sealing protective control valve (33) is arranged on the first sub-pipeline (92).
4. A high temperature vacuum reaction kettle circulating atmosphere system according to claim 3, characterized in that the reaction atmosphere part (8) is communicated with the first main pipeline (91) through a second branch pipeline (93), a reaction atmosphere control valve (31) is arranged on the second branch pipeline (93), a protective atmosphere control valve (32) is arranged on the first main pipeline (91), the protective atmosphere control valve (32) is positioned at the front side of the first branch pipeline (92), the protective atmosphere part (7) is communicated with the first main pipeline (91) through a third branch pipeline (94), and a first one-way valve (36) is arranged on the third branch pipeline (94).
5. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 1, wherein a second main pipeline (95) is arranged between the vacuum pump (4) and the protective atmosphere part (7), a fourth branch pipeline (96) and a fifth branch pipeline (97) are arranged on the second main pipeline (95), a second one-way valve (37) is arranged on the fourth branch pipeline (96), an exhaust control valve (35) is arranged on the fifth branch pipeline (97), the tail ends of the fourth branch pipeline (96) and the fifth branch pipeline (97) are communicated with the tail gas treatment device (5), a circulating decompression control valve (34) and an atmosphere impurity removal filter (6) are respectively arranged on the second main pipeline (95), and the circulating decompression control valve (34) and the atmosphere impurity removal filter (6) are positioned on the rear side of the fourth branch pipeline (96).
6. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 1, wherein the high-temperature reaction kettle (1) comprises an outer kettle body (11), an inner kettle body (12) and an explosion-proof inner module (13), the inner kettle body (12) is arranged in the outer kettle body (11), the explosion-proof inner module (13) is arranged between the inner kettle body (12) and the outer kettle body (11), the explosion-proof inner module (13) comprises a first steel wire layer (14), a second steel wire layer (15) and a plurality of node supporting parts (16), the plurality of node supporting parts (16) are arranged between the first steel wire layer (14) and the second steel wire layer (15), two explosion-proof inner film layers (140) are arranged between the first steel wire layer (14) and the second steel wire layer (15), and a polyurethane foam layer (10) is filled between the two explosion-proof inner film layers (140).
7. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 6, wherein the node supporting portion (16) comprises a first vertical explosion-proof plate (17), a second vertical explosion-proof plate (18), a plurality of transverse telescopic rods (19), a first explosion-proof guide group (20) and a second explosion-proof guide group (21), the first vertical explosion-proof plate (17) is arranged on the first steel wire layer (14), the second vertical explosion-proof plate (18) is arranged on the second steel wire layer (15), the plurality of transverse telescopic rods (19) are arranged between the first vertical explosion-proof plate (17) and the second vertical explosion-proof plate (18), the first explosion-proof guide group (20) is arranged on the inner wall of the first vertical explosion-proof plate (17), the second explosion-proof guide group (21) is arranged on the inner wall of the second vertical explosion-proof plate (18), the second explosion-proof guide group (21) is movably connected with the plurality of transverse telescopic rods (19), and two protection rings (160) are arranged on the inner wall of the first vertical explosion-proof plate (17) and the second vertical explosion-proof plate (18), and the two protection rings (160) are arranged between the protection rings.
8. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 7, wherein the first explosion-proof guide group (20) comprises a first elastic guide seat (201), a second elastic guide seat (202), a guide telescopic rod (203) and a plurality of guide frames (204), the first elastic guide seat (201) is arranged on the inner wall of the first vertical explosion-proof plate (17), the second elastic guide seat (202) is arranged on the second explosion-proof guide group (21), the guide telescopic rod (203) is arranged between the first elastic guide seat (201) and the second elastic guide seat (202), the guide frames (204) are uniformly distributed on the inner wall of the first vertical explosion-proof plate (17) and are positioned around the first elastic guide seat (201), the two vertical telescopic guide rods of the guide frames (204) are respectively provided with a first guide roller body (205), and the two first guide roller bodies (205) are respectively connected with the outer guide walls of the first elastic guide seat (201) and the second elastic guide seat (202) in a sliding mode.
9. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 8, wherein the second explosion-proof guide group (21) comprises a middle explosion-proof seat (211), a plurality of first oblique guide rods (212), an inner moving plate (213), an inner spring (214) and a plurality of second oblique guide rods (215), the middle explosion-proof seat (211) is arranged on the inner wall of the second vertical explosion-proof plate (18), the second elastic guide seat (202) is arranged on the middle explosion-proof seat (211), a plurality of angle guide holes (216) are formed in the middle explosion-proof seat (211), the inner moving plate (213) is arranged in the middle explosion-proof seat (211) and connected with the inner spring (214), one end of the first oblique guide rod (212) passes through the angle guide holes (216) and is hinged with the inner moving plate (213), the other end of the second oblique guide rod (215) is hinged with the inner wall of the middle explosion-proof seat (18), the other end of the second oblique guide rod (215) is provided with a second guide body (217), and the second oblique guide rod (215) is connected with the inner wall of the middle explosion-proof roller (211).
10. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 9, wherein the transverse telescopic rod (19) comprises a transverse inner cylinder (191), a transverse inner rod (192), a transverse spring (193) and a fixed cylinder (194), the fixed cylinder (194) is arranged on the inner wall of the second vertical explosion-proof plate (18), the transverse inner cylinder (191) is arranged in the fixed cylinder (194), one end of the transverse inner rod (192) is connected with the inner wall of the first vertical explosion-proof plate (17), the other end of the transverse inner rod is arranged in the transverse inner cylinder (191) in a penetrating manner, the transverse spring (193) is arranged on the transverse inner rod (192) and abuts against the transverse inner cylinder (191), an outer hinge block (195) is arranged on the transverse inner rod (192), and the other end of the second inclined guide rod (215) is connected with the outer hinge block (195).
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| CN202310894928.8A CN116817599A (en) | 2023-07-20 | 2023-07-20 | High-temperature vacuum reaction kettle circulating atmosphere system |
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| CN202310894928.8A CN116817599A (en) | 2023-07-20 | 2023-07-20 | High-temperature vacuum reaction kettle circulating atmosphere system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117268094A (en) * | 2023-11-22 | 2023-12-22 | 佛山市天禄智能装备科技有限公司 | Vacuum rotary furnace atmosphere system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117268094A (en) * | 2023-11-22 | 2023-12-22 | 佛山市天禄智能装备科技有限公司 | Vacuum rotary furnace atmosphere system |
| CN117268094B (en) * | 2023-11-22 | 2024-03-05 | 佛山市天禄智能装备科技有限公司 | Vacuum rotary furnace atmosphere system |
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