CN110523361A - A kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device - Google Patents
A kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device Download PDFInfo
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- CN110523361A CN110523361A CN201910846942.4A CN201910846942A CN110523361A CN 110523361 A CN110523361 A CN 110523361A CN 201910846942 A CN201910846942 A CN 201910846942A CN 110523361 A CN110523361 A CN 110523361A
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- passivation
- ptfe
- polytetrafluoroethylene
- aluminium powder
- mechanical activation
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- 239000000463 material Substances 0.000 title claims abstract description 96
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000004411 aluminium Substances 0.000 title claims abstract description 74
- 238000002161 passivation Methods 0.000 title claims abstract description 62
- 238000004137 mechanical activation Methods 0.000 title claims abstract description 60
- 229920002313 fluoropolymer Polymers 0.000 title description 5
- 239000004811 fluoropolymer Substances 0.000 title description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 124
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 124
- 239000000843 powder Substances 0.000 claims abstract description 72
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000000706 filtrate Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 229940058401 polytetrafluoroethylene Drugs 0.000 claims description 116
- -1 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 13
- 238000002360 preparation method Methods 0.000 abstract description 12
- 230000035945 sensitivity Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 14
- 239000000047 product Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 239000002360 explosive Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/085—Funnel filters; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention proposes a kind of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filter device, including passivation tank, passivation tank bracket, fire-proof motor, agitating paddle, intake valve, exhaust pipe, pressure gauge, feed opening, inlet valve, discharge port, filter hopper, material delivery pipe road, Pneumatic three-way ball valve, the first pneumatic diaphragm pump, the second pneumatic diaphragm pump, filtrate reception device, filter device bracket and filter cloth.The present invention is suitable for aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filtration treatment, the safety of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material preparation process discharging process can effectively be promoted, lifting process efficiency, the aluminium powder of preparation/polytetrafluoroethylene (PTFE) mechanical activation energetic material has the advantages that energy height and sensitivity are low compared with original technique.
Description
Technical field
The invention belongs to energetic material production technical fields, and in particular to a kind of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation contains
It can passivating material and filter device.
Background technique
Metal/fluoropolymer mechanical activation energetic material is usually multiple under mechanical energy effect by metal powder and fluoropolymer
Diffusion length reaches nanometer and the other recombination reaction system of molecular level between conjunction obtains component.Nanocomposite constituents under mechanical action
It is refined, uniformly mixes and activate, there is higher density and fuel factor.Such as the Al and 32.5% of PTFE and mass fraction 26.5%
The fuel factor of Mg mixture be respectively 8665 and 9540kJ/kg, more than the quick-fried heat of ideal explosive and many aluminum compositions, aluminium
Powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material research is of great significance for the promotion of three generations's explosive wastewater energy characteristics.Machine
Tool activation energetic material preparation process is the core that it is realized high-energy density, controls kinetics.Therefore, metal/fluorine is poly-
The optimization and control of object mechanical activating technique have the performance and promotion of mechanical activation energetic material performance vital
Effect.
" preparation of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material and micro-property research " (material Leader, 2018,
32 (3): 894-898.) disclose aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material preparation method, the process be by
Aluminium powder, polytetrafluoroethylene (PTFE) are added in high energy ball mill, and material is carried out mechanical activation under high-energy ball milling effect, is stood after activation
2h directly discharges, and finally carries out natural gravity filtering to material.Technique at this stage has the following problems: (1) just completing ball milling
Aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material in aluminium powder activity it is very big, directly discharge after standing, high activity aluminium powder with
Large quantity of air directly contacts the obvious heating of generation, is easy to cause danger of combustion；(2) the method and process efficiency of natural gravity filtering
It is low；(3) temperature of material is higher when directly discharging causes to contact with environment after standing, and natural gravity filtration time is long, high temperature
Degree material is contacted with environment for a long time, will affect the structure and performance of material.
Summary of the invention
(1) technical problems to be solved
The present invention proposes a kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device, to solve how to promote aluminium
Powder/safety of polytetrafluoroethylene (PTFE) mechanical activation energetic material preparation process discharging process and the technology of lifting process efficiency are asked
Topic.
(2) technical solution
In order to solve the above-mentioned technical problem, the present invention proposes that a kind of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material is blunt
Change and filter device, the passivation and filter device include passivation tank, are passivated tank bracket, fire-proof motor, agitating paddle, intake valve, row
Tracheae, pressure gauge, feed opening, inlet valve, discharge port, filter hopper, material delivery pipe road, Pneumatic three-way ball valve, the first gas
Dynamic diaphragm pump, the second pneumatic diaphragm pump, filtrate reception device, filter device bracket and filter cloth；Wherein, passivation tank installation
On passivation tank bracket, guarantee the stabilization of equipment during Passivation Treatment；Fire-proof motor and agitating paddle interconnection are mounted on blunt
On the tank body for changing tank, for the stirring of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material and stir；Intake valve, exhaust pipe and
Pressure gauge is installed on passivation tank, is respectively used to air inlet control, exhaust and the gas pressure monitoring of nitrogen gas；Inlet valve and go out
Material mouth is installed on passivation tank, is respectively used to aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry charging control and is gone out
Material；Discharge port is connected with filter hopper by material delivery pipe road；Material delivery pipe road be equipped with Pneumatic three-way ball valve and
First pneumatic diaphragm pump is respectively used to the blowing of control passivation tank and conveys material to filter hopper；Filter hopper, second
Pneumatic diaphragm pump and filtrate reception device are mounted on filter device bracket, are respectively used to aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation
Energetic material slurry receives, provides and filter required pressure and the filtered filtrate of collection；Filter cloth is placed in filter hopper
On, for filtering aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry, it is mechanical to collect half-dried aluminium powder/polytetrafluoroethylene (PTFE)
Activate energetic material sample.
Further, the material of filter cloth is polytetrafluoroethylene (PTFE), and diameter 300mm, average pore size is 5 μm.
(3) beneficial effect
Aluminium powder proposed by the present invention/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filter device, including passivation tank,
It is passivated tank bracket, fire-proof motor, agitating paddle, intake valve, exhaust pipe, pressure gauge, feed opening, inlet valve, discharge port, filter material
Bucket, material delivery pipe road, Pneumatic three-way ball valve, the first pneumatic diaphragm pump, the second pneumatic diaphragm pump, filtrate reception device, filtering
Appliance stand and filter cloth.
The present invention is suitable for aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filtration treatment, can effectively mention
The safety of liter aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material preparation process discharging process, lifting process efficiency, preparation
Aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material has the advantages that energy height and sensitivity are low compared with original technique.
Using aluminium powder of the invention/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and aluminium powder/poly- four of filter device
Vinyl fluoride mechanical activation energetic material has the advantage that (1) sensitivity is low.The method being passivated using weak oxide gas slowly,
The aluminium powder of preparation/polytetrafluoroethylene (PTFE) mechanical activation energetic material surface passivation layer distribution is more uniform, by stirring in passivating process
Mixing paddle hits aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material sharp corners mutually, finally obtained aluminium powder/polytetrafluoro
Ethylene mechanical activation energetic material is more round and smooth, is not susceptible to light a fire under extraneous mechanical stimulus conditions.(2) energy is high.Using
After weak oxide gas slowly Passivation Treatment, aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material surface of preparation be will form point
The uniform passivation layer of cloth, filters that the time is short, and process efficiency is high, the bond strength between aluminium powder activity and aluminium-polytetrafluoroethylene (PTFE) by
The external world influences very little, and performance is relatively stable.Existing to stand direct discharging-natural gravity filtering technique, discharge process materials temperature
Degree is high, and a few hours are contacted with air could be dry into vacuum drying oven, and storage, material will receive the shadow of environment, temperature, humidity
It rings, the bond strength between aluminium-polytetrafluoroethylene (PTFE) can change, the aluminium in aluminium-polytetrafluoroethylene (PTFE) mechanical activation energetic material
Powder can occur further to aoxidize, and reduction is released can be horizontal.Performance test data is shown: aluminium powder/polytetrafluoroethylene (PTFE) prepared by the present invention
The quick-fried heat of mechanical activation energetic material promotes 3.29%, and impact sensitivity, friction sensitivity are substantially reduced.
Detailed description of the invention
Fig. 1 is the passivation of mechanical activation of embodiment of the present invention energetic material and filter apparatus configuration figure.
In figure, 1- intake valve；2- inlet valve；3- feed opening；4- is passivated tank；5- fire-proof motor；6- agitating paddle；7- pressure
Table；8- exhaust pipe；9- discharge port；10- is passivated tank bracket；11- material delivery pipe road；12- Pneumatic three-way ball valve；The first gas of 13-
Dynamic diaphragm pump；14- filter hopper；15- filter cloth；The second pneumatic diaphragm pump of 16-；17- filtrate reception device；18- mistake
Filter appliance stand.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to tool of the invention
Body embodiment is described in further detail.
The present embodiment proposes a kind of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filter device, such as Fig. 1 institute
Show, the passivation and filter device include intake valve 1, inlet valve 2, feed opening 3, passivation tank 4, fire-proof motor 5, agitating paddle 6, pressure
Table 7, exhaust pipe 8, discharge port 9, passivation tank bracket 10, material delivery pipe road 11, Pneumatic three-way ball valve 12, the first pneumatic diaphragm pump
13, filter hopper 14, filter cloth 15, the second pneumatic diaphragm pump 16, filtrate reception device 17 and filter device bracket 18.
Wherein, passivation tank 4 is mounted on passivation tank bracket 10, guarantees the stabilization of equipment during Passivation Treatment；Fire-proof motor 5 and stirring
Paddle 6 is connected with each other on the tank body for being mounted on passivation tank 4, for the stirring of aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material and
It stirs, to allow material to come into full contact with gas；Intake valve 1, exhaust pipe 8 and pressure gauge 7 are installed on passivation tank 4, for containing
Air inlet control, exhaust and the gas pressure monitoring of the nitrogen gas of 5% air；Be passivated tank 4 on feed opening 3, inlet valve 2 and go out
Material mouth 9 is respectively used to aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry charging control and discharging；Discharge port 9 and mistake
Filter hopper 14 is connected by material delivery pipe road 11；Pneumatic three-way ball valve 12 and the first gas are installed on material delivery pipe road 11
Dynamic diaphragm pump 13, control is passivated tank blowing and conveys material to filter hopper respectively；Filter hopper 14, the second pneumatic diaphragm
Pump 16 and filtrate reception device 17 are mounted on filter device bracket 18, are respectively used to aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation and are contained
Energy material paste receives, provides and filter required pressure and the filtered filtrate of collection；Filter cloth 15 is placed in filter hopper
On 14, for filtering aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry, half-dried aluminium powder/polytetrafluoroethylene (PTFE) machine is collected
Tool activates energetic material sample.
In the present embodiment, passivation 4 volume of tank is 10L.
In the present embodiment, the material of filter cloth 15 is polytetrafluoroethylene (PTFE), and diameter matches with filter hopper 14, is
300mm.The filter cloth for choosing a variety of different pore sizes measures its filtration time and product yield.As shown in table 1, it is filtering
When device filter cloth aperture is 5 μm, product yield and filter cloth aperture are suitable when being 1 μm and 3 μm, and product yield is much higher than filter cloth aperture and is
Yield at 10 μm, and shortening one times the or more when process time than filter cloth aperture is 1 μm and 3 μm.Accordingly, it is determined that filter cloth
Aperture be 5 μm.
Product yield and filtration time under 1 different pore size of table
| Filter cloth aperture (μm) | Product yield (%) | Filtration time (min) |
| 1 | 97.3 | 28 |
| 3 | 97.0 | 22 |
| 5 | 96.6 | 8 |
| 10 | 92.4 | 2 |
Aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filter device, critical process are in passivation tank 4
Stirring, passivation, wherein crucial technological parameter is flow, the agitator speed of passivation gas, passivation gas flow and stirring
The matching of device revolving speed determines the quality of material covered effect.The gas flow of the present apparatus can not be adjusted, and keep intake valve
Standard-sized sheet can guarantee in passivation tank body and persistently remain full of passivation gas (nitrogen containing 5% air).Therefore, revolving speed determines aluminium
The contacting efficiency of high activity aluminium powder and passivation gas in powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry, to determine
Passivation effect.The revolving speed of agitating paddle 6 is respectively set as 100rpm, 200rpm, 300rpm, 400rpm, 500rpm, 600rpm,
700rpm discharging after temperature of charge is tested, be freeze-dried immediately after, and using " preparation of flake aluminum and its
Activity " method in (explosive, 2016,45 (4): 30-34) is in aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material
Aluminium powder activity is tested.From table 2 it can be seen that aluminium powder activity is 97.92% in material, out when revolving speed reaches 500rpm
Expect that temperature of charge is 49 DEG C, as two parameters of increase of revolving speed are no longer changed.Therefore, the revolving speed of agitating paddle 6 is
500rpm。
Aluminium powder activity and discharging temperature of charge under the different stirring rates of table 2 in product
| Rotating speed of agitator (rpm) | Aluminium powder activity (%) | It discharges temperature of charge (DEG C) |
| 100 | 99.32 | 68 |
| 200 | 98.91 | 65 |
| 300 | 98.64 | 62 |
| 400 | 98.08 | 58 |
| 500 | 97.92 | 49 |
| 600 | 97.83 | 46 |
| 700 | 97.87 | 47 |
The aluminium powder of the present embodiment/polytetrafluoroethylene (PTFE) mechanical activation energetic material passivation and filter device, application method are as follows:
Intake valve 1 and exhaust pipe 8 on passivation tank 4 will be opened first, allows the nitrogen containing 5% air full of passivation tank 4,10
Inlet valve 2 is opened after minute, aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material passes through feed opening 3 after mechanical activation is handled
Input passivation tank 4, opens agitating paddle 6, sets speed of agitator as 500rpm, and allowing aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation to contain can material
Expect to come into full contact with the nitrogen containing 5% air, Pneumatic three-way ball valve 12 and the material delivery pipe road of passivation pot bottom are opened after 1h
Aluminium powder after passivation/polytetrafluoroethylene (PTFE) mechanical activation energetic material is input to filter by the first pneumatic diaphragm pump 13 on 11
In hopper 14, the second pneumatic diaphragm pump 16 of filter feed hopper bottom is opened, filtrate is filtered to filtrate reception device 17, is collected
Filter cake on filter cloth 15 obtains half-dried aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material, and it is dry to be placed in vacuum drying oven
Dry, drying 8h obtains finished product.
Embodiment 1
Using passivation of the invention and filter device, it is used to prepare being averaged for aluminium powder in mechanical activation energetic material raw material
Granularity is 4-5 μm；The trade mark of aluminium powder is FLQT-4, polytetrafluoroethylene (PTFE) specifications and models CGUF201B.Aluminium powder/polytetrafluoroethylene (PTFE) is mechanical
Activation energetic material is made of aluminium powder, polytetrafluoroethylene (PTFE), and the mass ratio of aluminium powder and polytetrafluoroethylene (PTFE) is 26.7:73.5.As right
Than the prior art, which uses, stands directly discharging, natural gravity filtering technique, and the specification of aluminium powder, polytetrafluoroethylene (PTFE) is selected to match not
Become.
Performance test data is shown: the quick-fried heat of aluminium powder prepared by the present invention/polytetrafluoroethylene (PTFE) mechanical activation energetic material is promoted
3.58%, impact sensitivity, friction sensitivity are substantially reduced.
Embodiment 2
Using passivation of the invention and filter device, it is used to prepare being averaged for aluminium powder in mechanical activation energetic material raw material
Granularity is 26 μm；The trade mark of aluminium powder is FLQT-2, polytetrafluoroethylene (PTFE) specifications and models CGUF201B.Aluminium powder/polytetrafluoroethylene (PTFE) is mechanical
Activation energetic material is made of aluminium powder, polytetrafluoroethylene (PTFE), and the mass ratio of aluminium powder and polytetrafluoroethylene (PTFE) is 26.7:73.5.Preparation step
Rapid reference embodiment 1.As a comparison, the prior art, which uses, stands directly discharging, natural gravity filtering technique, selects aluminium powder, gathers
The specification proportion of tetrafluoroethene is constant.
Performance test data is shown: the quick-fried heat of aluminium powder prepared by the present invention/polytetrafluoroethylene (PTFE) mechanical activation energetic material is promoted
3.96%, impact sensitivity, friction sensitivity are substantially reduced.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of aluminium powder/passivation of polytetrafluoroethylene (PTFE) mechanical activation energetic material and filter device, which is characterized in that the passivation and
Filter device include passivation tank, passivation tank bracket, fire-proof motor, agitating paddle, intake valve, exhaust pipe, pressure gauge, feed opening, into
Expect valve, discharge port, filter hopper, material delivery pipe road, Pneumatic three-way ball valve, the first pneumatic diaphragm pump, the second pneumatic diaphragm
Pump, filtrate reception device, filter device bracket and filter cloth；Wherein,
Passivation tank is mounted on passivation tank bracket, guarantees the stabilization of equipment during Passivation Treatment；
Fire-proof motor and agitating paddle are connected with each other on the tank body for being mounted on passivation tank, are used for aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation
It the stirring of energetic material and stirs；
Intake valve, exhaust pipe and pressure gauge are installed on passivation tank, are respectively used to air inlet control, exhaust and the gas of nitrogen gas
Pressure monitoring；
Inlet valve and discharge port are installed on passivation tank, are respectively used to aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry
Charging control and discharging；
Discharge port is connected with filter hopper by material delivery pipe road；Material delivery pipe road be equipped with Pneumatic three-way ball valve and
First pneumatic diaphragm pump is respectively used to the blowing of control passivation tank and conveys material to filter hopper；
Filter hopper, the second pneumatic diaphragm pump and filtrate reception device are mounted on filter device bracket, be respectively used to aluminium powder/
Polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry receives, provides and filter required pressure and the filtered filtrate of collection；
Filter cloth is placed on filter hopper, for filtering aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material slurry, is received
Collect half-dried aluminium powder/polytetrafluoroethylene (PTFE) mechanical activation energetic material sample.
2. passivation as described in claim 1 and filter device, which is characterized in that the material of the filter cloth is polytetrafluoro
Ethylene, diameter 300mm, average pore size are 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910846942.4A CN110523361A (en) | 2019-09-09 | 2019-09-09 | A kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910846942.4A CN110523361A (en) | 2019-09-09 | 2019-09-09 | A kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110523361A true CN110523361A (en) | 2019-12-03 |
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ID=68667811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910846942.4A Pending CN110523361A (en) | 2019-09-09 | 2019-09-09 | A kind of passivation of aluminium fluoropolymer mechanical activation energetic material and filter device |
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| Country | Link |
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| CN (1) | CN110523361A (en) |
Cited By (1)
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| CN114602224A (en) * | 2022-01-24 | 2022-06-10 | 合肥通用机械研究院有限公司 | Intrinsic safety type filtering and washing dual-purpose machine for energetic materials |
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| CN114602224A (en) * | 2022-01-24 | 2022-06-10 | 合肥通用机械研究院有限公司 | Intrinsic safety type filtering and washing dual-purpose machine for energetic materials |
| CN114602224B (en) * | 2022-01-24 | 2024-01-12 | 合肥通用机械研究院有限公司 | Intrinsic safety type energy-containing material filtering and washing dual-purpose machine |
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