CN207061888U - A kind of device that superfine powder is prepared using self-propagating reaction - Google Patents

A kind of device that superfine powder is prepared using self-propagating reaction Download PDF

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Publication number
CN207061888U
CN207061888U CN201720775459.8U CN201720775459U CN207061888U CN 207061888 U CN207061888 U CN 207061888U CN 201720775459 U CN201720775459 U CN 201720775459U CN 207061888 U CN207061888 U CN 207061888U
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reaction
wall
collection
inwall
powder
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CN201720775459.8U
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Inventor
张国栋
张楚
李明德
温佳珉
薛龙建
费敬党
张传浩
张建强
梅青松
张富巨
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Wuhan North New Environmental Technology Development Co Ltd
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SUZHOU INSTITUTE OF WUHAN UNIVERSITY
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Abstract

The utility model belongs to superfine powder preparing technical field, more particularly to a kind of device that superfine powder is prepared using self-propagating reaction.Including reaction unit, collection device and electronic ignition device;The reaction unit is the graphite crucible of bottom opening, is placed on the surface of collection slag plate;The collection device is the cylindrical appliance that bottom is emptied, and recirculated cooling water is connected between outer wall and inwall, and inwall does roughening treatment, is easy to collect target powder.The upper end of wherein outer wall is provided with water inlet, and the lower end of outer wall is provided with delivery port.Its advantage is:Good cooling results, avoid the product fast growth of synthesis;Cooling agent is recirculated water, and cost is low;Remotely lighted a fire, simple to operate, safe ready, can be recycled for multiple times using electronic ignition device;Locking device, improve yield;Graphite crucible bottom opening, the accumulation of reaction residues can be effectively avoided, be easy to the cleaning of reaction chamber, and can prevents that reaction pressure is too high in crucible, causes reaction violent, product is impure.

Description

A kind of device that superfine powder is prepared using self-propagating reaction
Technical field
The utility model belongs to superfine powder preparing technical field, is prepared more particularly to one kind using self-propagating reaction The device of superfine powder.
Background technology
At present, common superfine powdery material preparation method mainly has:Mechanical attrition method, hydro-thermal method, CVD, PVD, carbon heat Reducing process, calcination method, sol-gal process, masterplate method etc..Big, preparation technology flow is put into and mostly there is synthesis device in these methods The shortcomings of complexity, energy consumption are too high, and preparation efficiency is relatively low.SHS technology, mainly by the oxidation of thermite also Original reaction, the reaction of system Physical Chemistry of Metallurgy is induced, form combustion wave, abrupt release heat melts product sprays system, makes it It is controlled to cool down so as to obtain superfine powdery material.The method have production efficiency is high, easy to operate, technological process is few, low energy consumption, Low cost, the advantages that product purity is high, there is wide market-oriented prospect.
At present, most of self propagating high temperature devices are mainly used in compact block material and cellular solid synthesis, it is impossible to Directly obtain scattered micro/nano level material.Because SHS process has very strong system specific aim, often prepare not Device used in the product of same type also differs widely.Although patent CN201220398585, CN201220175591, 201620879050.6,201620879141.X be the self-spreading high-temperature synthesizing device for preparing nano material, but these devices In the presence of the shortcomings that insufficient is cooled down, cause the nano material of synthesis easily to be grown up, influence material property.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dress that superfine powder is prepared using self-propagating reaction Put, the device good cooling results, cost are low, simple in construction, and Product yields are high.
A kind of device that superfine powder is prepared using self-propagating reaction, including reaction unit, collection device and electronic ignition Device;The reaction unit is the graphite crucible of bottom opening, is placed on the surface of collection slag plate;
The collection device is the cylindrical appliance that bottom is emptied, and recirculated cooling water, inwall are connected between outer wall and inwall Roughening treatment is done, is easy to collect target powder.The upper end of wherein outer wall is provided with water inlet, and the lower end of outer wall is provided with delivery port.
The material of the collection device is 304 stainless steels.
The electronic lighter includes electric igniter, battery case, switch and wire, and wherein electric igniter is red phosphorus, position In the pyrophoric powder in reaction unit, electric igniter is connected by wire with the switch and battery case of outside.Wherein in battery case For a section alkaline dry battery, the power supply as electronic striking;Switch and switched for common key-press.
The utility model has the advantages that:Good cooling results, ensure that product is received in whole process by using circulating water Collection inner wall temperature is relatively low, avoids the powder body material fast growth of synthesis;Cooling agent is recirculated water, reduces and prepares cost;Use electricity Sub- igniter is remotely lighted a fire, simple to operate, safe ready, and switch, wire, battery case can be recycled for multiple times;It is whole Individual device is locking device so that Product yields significantly improve;Graphite crucible reactor bottom perforate, on the one hand effectively avoid anti- Answer residue to be accumulated in crucible, be easy to the cleaning of reaction chamber, on the other hand can prevent that reaction pressure is too high in crucible, cause to react Excessively acutely, product purity is impacted.
Brief description of the drawings
Fig. 1 is a kind of structural representation of self propagating high temperature device of the utility model
Wherein, 1- graphite crucibles, 2- reactant powders, 3- pyrophoric powders, 4- paper gaskets, 5- collection slag plate, 6- electric igniters, 7- Wire, 8- controlling switches, 9- battery cases, 10- delivery ports, 11- water inlets, 12- cooling waters, 13- powder products, 14- collect dress Put.
Embodiment
It will be helpful to understand the present invention by the following description of the embodiments, but be not intended to limit present disclosure.
Embodiment 1
Below in conjunction with the accompanying drawings, the utility model is further described:According to Fig. 1, one kind is anti-using self- propagating The device of superfine powder, including reaction unit, collection device and electronic ignition device should be prepared;The reaction unit is opened for bottom The graphite crucible in hole, it is placed on the surface of collection slag plate;
The collection device is the cylindrical appliance that bottom is emptied, and recirculated cooling water, inwall are connected between outer wall and inwall Roughening treatment is done, is easy to collect target powder.The upper end of wherein outer wall is provided with water inlet, and the lower end of outer wall is provided with delivery port.
The collection device is 304 stainless steel devices.
The electronic lighter includes electric igniter, battery case, switch and wire.Wherein electric igniter is red phosphorus, will It is connected with plain conductor with external switch and battery case.It is a section alkaline dry battery wherein in battery case, as electronic striking Power supply;Switch and switched for common key-press.
The utility model is realized in the following way:Al, Bi are weighed according to certain mass ratio2O3、Al2O3、NaCl、 SiO2, CaO powder and be well mixed, as reactant powders 2;Paper gasket 4 is put into the bottom of graphite crucible 1, bottom is blocked and leads to Hole;Then dried reactant powders 2 are fitted into graphite crucible 1, and in surface spreading pyrophoric powder 3, insertion electronic striking The electric igniter 6 of device;Collection device 14 is covered on directly over graphite crucible 1, controlling switch 8 is pressed, is filled by electronic striking Ignition reaction system is put, after question response terminates, product cooling is waited, the bismuth oxide of generation is collected on the inwall of collection device 14 Powder.
Involved related chemistry reaction mainly has:
2Al+Bi2O3=2Bi+Al2O3
4Bi+3O2=2Bi2O3
The product proves through X-ray diffraction, the characterization result of SEM:Gained is high-purity submicron order ball Shape Bismuth oxide particles, between its particle diameter is about 200nm-300nm.
The utility model is not limited to above example, every that above example is made according to the technical essence of the utility model Any simple modification, equivalent change and modification, still fall within the scope of protection of the utility model.

Claims (4)

  1. A kind of 1. device that superfine powder is prepared using self-propagating reaction, it is characterised in that including reaction unit, collection device and Electronic ignition device;The reaction unit is the graphite crucible of bottom opening, is placed on the surface of collection slag plate;
    The collection device is the cylindrical appliance that bottom is emptied, and recirculated cooling water is connected between outer wall and inwall, inwall is done slightly Change is handled, and is easy to collect target powder.
  2. 2. device according to claim 1, it is characterised in that:The material of the collection device is 304 stainless steels.
  3. 3. device according to claim 1, it is characterised in that:The upper end of the collection device outer wall is provided with water inlet, outside The lower end of wall is provided with delivery port.
  4. 4. device according to claim 1, it is characterised in that:The electronic ignition device include electric igniter, battery case, Switch and wire, wherein electric igniter is red phosphorus, and in the pyrophoric powder in reaction unit, electric igniter passes through wire and outside Switch connected with battery case.
CN201720775459.8U 2017-06-29 2017-06-29 A kind of device that superfine powder is prepared using self-propagating reaction Active CN207061888U (en)

Priority Applications (1)

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CN201720775459.8U CN207061888U (en) 2017-06-29 2017-06-29 A kind of device that superfine powder is prepared using self-propagating reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720775459.8U CN207061888U (en) 2017-06-29 2017-06-29 A kind of device that superfine powder is prepared using self-propagating reaction

Publications (1)

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CN207061888U true CN207061888U (en) 2018-03-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111834656A (en) * 2020-07-25 2020-10-27 山东交通学院 Optimized single-phase doped lanthanum gallate electrolyte preparation device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111834656A (en) * 2020-07-25 2020-10-27 山东交通学院 Optimized single-phase doped lanthanum gallate electrolyte preparation device and method

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Effective date of registration: 20190226

Address after: 430074 No. 16 Fozuling Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province

Patentee after: Wuhan North New Environmental Technology Development Co., Ltd.

Address before: No. 188 Renai Road, Suzhou Industrial Park, Jiangsu Province, 215000

Patentee before: Suzhou Institute of Wuhan University