CN210292568U - High-temperature high-pressure explosion rapid expansion dryer - Google Patents
High-temperature high-pressure explosion rapid expansion dryer Download PDFInfo
- Publication number
- CN210292568U CN210292568U CN201920732998.2U CN201920732998U CN210292568U CN 210292568 U CN210292568 U CN 210292568U CN 201920732998 U CN201920732998 U CN 201920732998U CN 210292568 U CN210292568 U CN 210292568U
- Authority
- CN
- China
- Prior art keywords
- pressure
- explosion
- batch autoclave
- rapid expansion
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a high temperature high pressure explodes rapid expansion desicator, including high-pressure batch autoclave, explode piece, sack type dust remover and heating jacket, high-pressure batch autoclave is last to be equipped with blow vent, charge door and pressure release mouth, and high-pressure batch autoclave's lower extreme periphery is equipped with the heating jacket, the sack type dust remover passes through the pipeline to be connected with the high-pressure batch autoclave inner chamber, and seal installation has the piece of exploding on the pipeline. The utility model discloses simple process, easy operation, low in production cost is honest and clean, easily realizes a high temperature high pressure explosion rapid expansion drying equipment of industrial production, and drying effect is obvious, the even nothing of granularity is reunited, and is efficient.
Description
Technical Field
The utility model relates to a high temperature high pressure explodes rapid expansion desicator. Belongs to the field of nanometer material preparation.
Background
The powder material is an important class in the field of materials, and various technical indexes are required in the fields of industry, agriculture, chemical industry, medical treatment, military affairs and the like. The particle size and particle size distribution of the powder are important indexes for characterizing the thickness of the powder material, and the powder with different particle sizes has different purposes. However, some applications place more stringent requirements on the particle size range of the powder material. The nano powder is one of the technical indexes widely required in various fields, for example, 1, the field of transparent ceramics, the particle size of the powder material has an important influence on the sintering process of the transparent ceramic product, the smaller the particle size of the powder is, the narrower the distribution is, the lower the sintering temperature is, the fewer defects of the sintered product are, and the higher the transparency is. 2. The lithium ion battery diaphragm is coated with the ceramic coating, the shrinkage of the diaphragm when being heated can be reduced, so that the safety performance of the battery is obviously improved, and the ceramic powder material for coating has larger grain diameter ratio, can not obtain an ultrathin coating, is easy to remove slag, and can not meet the requirements of customers, so that the powder material is required to have very small grain size, even reach the nanometer level.
However, the problem of agglomeration has been a great problem in the preparation of nanopowder, because the agglomeration is accompanied with the liquid phase preparation, drying, storage and application of nanopowder, and the existence of the agglomeration can seriously affect the properties of the nanopowder, such as forming, dispersion and sintering. The nano oxide material prepared by a liquid wet grinding method can solve the problems of agglomeration and the like in a liquid phase by grinding and crushing or adding a proper amount of a dispersing agent, but the agglomeration still occurs when the drying is carried out. The particle size and aggregation state are not only influenced by the synthesis conditions, but also the drying method plays a key role.
Common drying methods at present are spray drying, freeze drying and supercritical fluid drying. Spray drying is to spray the material into a spray drying tower for drying, and the huge surface tension generated by the evaporation of the solvent in the drying process inevitably causes the material agglomeration, thereby generating the coarsening of material particles, which is unfavorable for the acquisition of small-particle-size nano materials and the preparation of high-specific surface materials. The vacuum freeze drying is that the material is first frozen and then set inside vacuum container, the material is heated in certain vacuum degree to sublimate the water from solid state to gaseous state and the water vapor is exhausted via the vacuum system to eliminate water from wet material and obtain dry product. The advantage is that nanoparticles with a smaller particle size can be obtained, but the drying process takes a longer time. The supercritical fluid drying technique is drying under the conditions of critical temperature and critical pressure of a solvent, but the supercritical conditions of an aqueous solution form are very severe, and it is necessary to replace water with a conventional supercritical fluid and then perform supercritical drying, and supercritical drying of an aqueous solution is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple process, easy operation, low in production cost is honest and clean, easily realizes a high temperature high pressure explosion rapid expansion drying equipment of industrial production, and drying effect is obvious, the even nothing of granularity is reunited, and efficient high temperature high pressure explosion rapid expansion drying ware.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature high pressure explodes rapid expansion desicator, includes high-pressure batch autoclave, explodes piece, bag collector and heating jacket, last blow vent, charge door and the pressure release mouth of being equipped with of high-pressure batch autoclave, and high-pressure batch autoclave's lower extreme periphery is equipped with the heating jacket, the bag collector passes through the pipeline and is connected with the high-pressure batch autoclave inner chamber, and seal installation has the explodes piece on the pipeline.
Preferably, the high-pressure reaction kettle is further provided with a temperature control device, a material thermometer, a pressure gauge and a kettle body thermometer, and the material thermometer extends into the bottom of the inner cavity of the high-pressure reaction kettle.
Preferably, the high-pressure reaction kettle is made of 304 or 316 stainless steel materials.
Preferably, the explosion limit pressure of the explosion sheet is lower than the safety pressure of the high-pressure reaction kettle.
Compared with the prior art, the beneficial effects of the utility model are that:
this scheme is established the heating jacket in high temperature reation kettle periphery through the cover and is heated, and the material is added from the charge door, and inert gas is added to the rethread blow vent, and vacuum pump or atmosphere are connected to the pressure release mouth. After the nano-powder is heated to a certain temperature and pressure and reaches the limit pressure of the explosion piece, the explosion piece is instantaneously exploded, the gas is rapidly expanded and decompressed, the water drops can be violently expanded and released into the bag-type dust collector through the explosion piece, and the nano-powder brought out by the gas flow is also collected. The utility model discloses simple process, easy operation, low in production cost is honest and clean, and drying effect is obvious, and the powder particle diameter does not have the reunion, and the particle diameter is little, and monodispersity need not smash the grading treatment of breaing up again.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a high temperature high pressure explodes rapid expansion desicator, includes high-pressure batch autoclave 1, explodes piece 2, bag collector 3 and heating jacket 11, high-pressure batch autoclave 1 is last to be equipped with blow vent 8, charge door 9 and pressure release mouth 10, and high-pressure batch autoclave 1's lower extreme periphery is equipped with heating jacket 11, bag collector 3 passes through pipeline 12 and is connected with 1 inner chamber of high-pressure batch autoclave, and seal installation has explodes piece 2 on pipeline 12.
Referring to fig. 1, the high-pressure reaction kettle 1 is further provided with a temperature control device 4, a material thermometer 5, a pressure gauge 6 and a kettle body thermometer 7, wherein the material thermometer 5 extends into the bottom of the inner cavity of the high-pressure reaction kettle 1. Temperature control device 4 is PID temperature controller for control heating temperature has material thermometer 5 on the cauldron body, is used for showing the temperature variation of material, and manometer 6 is used for showing the internal pressure variation of cauldron, and cauldron body thermometer 7 is used for showing the internal temperature variation of cauldron.
Referring to fig. 1, the high pressure reactor 1 is made of 316 stainless steel material. Safe and reliable, and is suitable for drying various materials.
Referring to fig. 1, the explosion limit pressure of the explosion plate 2 is far lower than the safe pressure of the high-pressure reaction kettle 1. Ensuring that the rupture disc 2 is firstly exploded.
Taking the preparation of high-purity nano alumina as an example, firstly, the tightness of the high-pressure reaction kettle 1 is checked before use, the design pressure of the high-pressure reaction kettle 1 is 10MPa, and the explosion pressure of the type-selection design of the explosion-release sheet 2 is 0.4-0.7 MPa. The method comprises the steps of pumping powder slurry ground in advance into a high-pressure reaction kettle 1 through a feed inlet 9, controlling the slurry concentration to be within the range of 40% -60%, after grouting is completed, closing a valve at the feed inlet 9, injecting a certain amount of inert gas into a kettle body, controlling a heating sleeve 11 to heat and raise the temperature, after the limit pressure of an explosion sheet 2 is reached, instantaneously exploding the explosion sheet 2 after the limit pressure of the explosion sheet 2 is reached, rapidly expanding and decompressing steam, releasing water droplets from the explosion sheet 2 into a bag-type dust collector 3, collecting nano powder brought out by airflow, and obtaining the agglomeration-free alumina powder material.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a high temperature high pressure explodes quick expansion dryer which characterized in that: including high-pressure batch autoclave (1), explosion piece (2), bag collector (3) and heating jacket (11), be equipped with blow vent (8), charge door (9) and pressure release (10) on high-pressure batch autoclave (1), and the lower extreme periphery of high-pressure batch autoclave (1) is equipped with heating jacket (11), bag collector (3) are connected with high-pressure batch autoclave (1) inner chamber through pipeline (12), and seal installation has explosion piece (2) on pipeline (12).
2. The high-temperature high-pressure explosion rapid expansion dryer according to claim 1, wherein: the high-pressure reaction kettle (1) is further provided with a temperature control device (4), a material thermometer (5), a pressure gauge (6) and a kettle body thermometer (7), and the material thermometer (5) extends into the bottom of an inner cavity of the high-pressure reaction kettle (1).
3. The high-temperature high-pressure explosion rapid expansion dryer according to claim 1, wherein: the high-pressure reaction kettle (1) is made of 304 or 316 stainless steel materials.
4. The high-temperature high-pressure explosion rapid expansion dryer according to claim 1, wherein: the explosion limit pressure of the explosion plate (2) is lower than the safety pressure of the high-pressure reaction kettle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732998.2U CN210292568U (en) | 2019-05-21 | 2019-05-21 | High-temperature high-pressure explosion rapid expansion dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920732998.2U CN210292568U (en) | 2019-05-21 | 2019-05-21 | High-temperature high-pressure explosion rapid expansion dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210292568U true CN210292568U (en) | 2020-04-10 |
Family
ID=70069865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920732998.2U Active CN210292568U (en) | 2019-05-21 | 2019-05-21 | High-temperature high-pressure explosion rapid expansion dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210292568U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046147A (en) * | 2021-04-27 | 2021-06-29 | 中国矿业大学 | Transient dehydration quality-improving method for high-moisture low-quality coal |
| CN113234514A (en) * | 2021-05-29 | 2021-08-10 | 中国矿业大学 | Dewatering and quality improving system for high-water-content materials |
| CN115976500A (en) * | 2023-02-13 | 2023-04-18 | 北京纯锂新能源科技有限公司 | Lithium-based high-entropy alloy coating, preparation method and metal lithium battery |
-
2019
- 2019-05-21 CN CN201920732998.2U patent/CN210292568U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046147A (en) * | 2021-04-27 | 2021-06-29 | 中国矿业大学 | Transient dehydration quality-improving method for high-moisture low-quality coal |
| CN113234514A (en) * | 2021-05-29 | 2021-08-10 | 中国矿业大学 | Dewatering and quality improving system for high-water-content materials |
| CN115976500A (en) * | 2023-02-13 | 2023-04-18 | 北京纯锂新能源科技有限公司 | Lithium-based high-entropy alloy coating, preparation method and metal lithium battery |
| CN115976500B (en) * | 2023-02-13 | 2024-01-19 | 北京纯锂新能源科技有限公司 | Lithium-based high-entropy alloy coating, preparation method and metal lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210292568U (en) | High-temperature high-pressure explosion rapid expansion dryer | |
| CN105727579B (en) | Low-cost high-efficiency supercritical spray drying method and equipment for slurry | |
| CN102744020B (en) | A kind of powder material low temperature plasma surface treatment and device thereof | |
| US7833444B2 (en) | Fine particle granulation method | |
| CN204193911U (en) | A kind of microcapsules spray-drying installation | |
| CN108206270A (en) | A kind of in-situ preparation method of carbon nanosheet cladding nanometer silicon composite material | |
| US11911786B2 (en) | Hydrate energy-storage temperature-control material and preparation method therefor | |
| Honghao et al. | Detonation synthesis of SnO2 nanoparticles in gas phase | |
| CN110182842A (en) | A method of quickly preparing carbon-coated nano oxidation titanous nano-powder | |
| CN102259837B (en) | Particle used for hydrogen production and preparation method thereof | |
| CN103624269B (en) | A kind of nano-tungsten powder and employing collosol and gel hydrogen reduction method thereof prepare the method for nano-tungsten powder | |
| CN113108558A (en) | Supercritical carbon dioxide drying device and drying method thereof | |
| CN103722180B (en) | A kind of preparation method of superfine simple-substance nickel powder | |
| CN215337336U (en) | Supercritical carbon dioxide drying device | |
| CN109773199A (en) | A kind of fast preparation method of multiple dimensioned lithium ball | |
| CN105108170A (en) | Method for manufacturing ultrafine nickle powder | |
| CN106634860A (en) | Supercritical carbon dioxide graphene nanofluid and preparation and application method thereof | |
| CN107020372A (en) | A kind of water-based spray prilling process of titanium diboride/nickel molybdenum composite granule | |
| CN103482604B (en) | Microwave superheated water vapor preparation method for bamboo fiber nano carbon particles | |
| Du et al. | Environmental Study on Supercritical CO2 Extraction of Nanocrystalline. | |
| CN220496291U (en) | Medical medicine supercritical granulation system | |
| CN218836090U (en) | Tantalum and niobium material hydrogenation balance system | |
| CN213724930U (en) | Supercritical fine particle preparation device | |
| CN109848430A (en) | Process for preparing metallic titanium by using titanium dioxide | |
| CN203281305U (en) | Industrial high-pressure microwave digestion reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |