CN110197735A - A kind of aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine - Google Patents
A kind of aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine Download PDFInfo
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- CN110197735A CN110197735A CN201910573981.1A CN201910573981A CN110197735A CN 110197735 A CN110197735 A CN 110197735A CN 201910573981 A CN201910573981 A CN 201910573981A CN 110197735 A CN110197735 A CN 110197735A
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- silica gel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/30—Processing
- G21F9/301—Processing by fixation in stable solid media
- G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
- G21F9/305—Glass or glass like matrix
Abstract
This application discloses a kind of aquation synthetic methods that silver-colored silica gel glass solidified body is applied containing iodine, comprising the following steps: by borate raw material and mixed grinding after the deposited silver-colored silica gel particle addition deionized water containing radioiodine, obtains water-based slurry；Control sintering furnace is warming up to the sintering temperature of setting, keeps the water-based slurry to be in uniformly mixed state, water-based slurry constant speed is delivered in sintering furnace and is sintered operation；It after the completion of water-based slurry conveying, is kept the temperature according to preset heat preservation duration, is cooled to room temperature after the completion of heat preservation, obtain applying silver-colored silica gel glass solidified body containing iodine.The temperature that sintering can be preferably reduced by hydrolyzing of this method, shortens sintering time, and prepared solidified body has many advantages, such as higher volumes density and lower nuclide leaching rate, can inhibit the migration of radioiodine in nature well.
Description
Technical field
The present invention relates to Radwastes treatment field more particularly to a kind of aquations that silver-colored silica gel glass solidified body is applied containing iodine
Synthetic method.
Background technique
A large amount of radionuclide has been supervened in the fast development of nuclear technology, the disposition of radionuclide as one compared with
Be concerned for complicated problem, these nucleic can generate all kinds of heavy ions and ray in decay process, to environment and
Mankind itself can generate some negative effects.Radioiodine is as one of its Radionuclide, other than iodo- 129, other radioactivity
The half-life period of iodine is all lower.Therefore iodo- 129 disposition is extremely urgent.Mainly there is ocean to the processing method of radioiodine at present
Process, cement, plastics, bitumen solidification etc..Although these methods to a certain extent can be disposed radioiodine,
There are solidified body stability is poor, cause secondary pollution problems；And it is not able to satisfy the demand of long-term disposition radioiodine.
The migration for polluting nucleic in biosphere can be effectively inhibited by carrying out solidifying for deposited silver-colored silica gel to radioiodine.Apply silver
Silica gel is that silica gel particle is placed in AgNO3Particle obtained in solution.The curing process for applying silver silica gel generallys use gaseous state
Trapping, this mode can be realized the absorption to radioiodine.This method can form AgI directly to consolidate to iodine
Change, but influence of this silica gel particle vulnerable to outside environmental elements such as pressure, temperature and humidity itself, leads to the shape of solidified body
Becoming influences its stability.To not be able to satisfy the demand of long-term disposition radioiodine.
Summary of the invention
The present invention is in view of the above-mentioned problems, propose a kind of aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine.
The technical solution adopted by the present invention is as follows:
A kind of aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine, comprising the following steps:
By borate raw material and mixed grinding after the deposited silver-colored silica gel particle addition deionized water containing radioiodine, obtain water base
Slurry；
Control sintering furnace is warming up to the sintering temperature of setting, and the water-based slurry is kept to be in uniformly mixed state, will
Water-based slurry constant speed, which is delivered in sintering furnace, is sintered operation；
It after the completion of water-based slurry conveying, is kept the temperature according to preset heat preservation duration, is cooled to room temperature, obtains after the completion of heat preservation
Silver-colored silica gel glass solidified body is applied to containing iodine.
The core of this method is hydrolytic process, the moisture when water-based slurry instills sintering furnace, in each based sizing that drips
Evaporation rapidly, can quickly be sintered.Hydrolytic process can preferably reduce the temperature of sintering, while other are traditional relatively
Its soaking time of the method for sintering is shorter, i.e. shortening sintering time.Keep the water-based slurry be in uniformly mixed state and
Constant speed is delivered to sintering furnace, and setting in this way enables to solidified body consistency obtained preferable, and density is larger.
This method technical process is simple, energy conservation and environmental protection, safe and reliable, prepared solidified body have higher volumes density and
The advantages that lower nuclide leaching rate, can inhibit the migration of radioiodine in nature, method tool of the invention well
There is good prospects for commercial application.
In the present invention wherein an embodiment, the maximum outside diameter of the deposited silver-colored silica gel particle containing radioiodine is less than or equal to 200 μ
m；The mass ratio control of borate raw material and total quality and deionized water of the deposited silver-colored silica gel particle containing radioiodine 0.1~
0.2。
In the present invention wherein an embodiment, the borate raw material is made of boron oxide, bismuth oxide and zinc oxide, by matter
Measure percentage meter, boron oxide 40%~70%, bismuth oxide 22%~48%, zinc oxide 8%~12%.
In the present invention wherein an embodiment, borate raw material and the deposited silver-colored silica gel particle containing radioiodine, by quality hundred
Score meter, the deposited silver-colored silica gel particle containing radioiodine is 40%~70%, the borate raw material is 30%~60%.
In the present invention wherein an embodiment, the quality of radioiodine is no more than borate raw material and applying containing radioiodine
The 15% of silver-colored silica gel particle gross mass.
In the present invention wherein an embodiment, water-based slurry constant speed is delivered to before being sintered operation in sintering furnace,
Further include the steps that preheating, preheating step are as follows: heat to water-based slurry, control the temperature of water-based slurry at 20-60 DEG C.
In the present invention wherein an embodiment, the rate that water-based slurry is delivered to sintering furnace is 1-36ml/min.
In the present invention wherein in an embodiment, as 300 DEG C~600 DEG C, when heat preservation of setting, is a length of for the sintering temperature that sets
3h~7h.
In the present invention wherein an embodiment, aquation synthetic method is implemented by aquation synthesis system, the aquation synthesis
System includes:
Sintering furnace, inside are equipped with sintering container and heating element；
Colloid mill obtains water base slurry for mixing and grinding borate raw material and the deposited silver-colored silica gel particle containing radioiodine
Material；
Magazine, for storing water-based slurry；
Agitating element is arranged in magazine, for stirring water-based slurry；
Driving element is stirred, for driving the agitating element to rotate；
Transfer pipeline, for connecting sintering furnace and the magazine；And
Conveying device cooperates with transfer pipeline, for the water-based slurry in magazine to be delivered to the sintering furnace
In sintering container；
The transfer pipeline include the hollow metal tube and one end being mounted on sintering furnace docked with metal tube it is another
The colloid hose for protruding into magazine is held, the metal tube is located at the surface of the sintering container, the side wall of metal tube
Inside has coolant flow channel, also has inlet and liquid outlet on metal tube, inlet and liquid outlet respectively with coolant flow channel
Both ends connection, the hollow space of the metal tube is protruded into one end of the colloid hose from top to bottom, and fixes with metal tube, from
The water-based slurry that colloid hose comes instills in the sintering container；
The inlet and the liquid outlet have heat exchange element by piping connection, are equipped with circulating pump on the pipeline,
The circulating pump is for driving the cooling medium in pipeline to flow.
In the present invention wherein an embodiment, the conveying device is peristaltic pump；The agitating element is magnetism stick, described
Stirring driving element is magnetic stirring apparatus；The side wall of the magazine is equipped with the first magnetic part, and the colloid hose protrudes into
The part of magazine is equipped with the second magnetic part, first magnetic part and the second magnetic part magnetic attracting, and the storing holds
The inner sidewall of device has a pair of spaced limited block, and the limited block is located in magazine upper region, colloid hose
The part for protruding into magazine is positioned between the two limiting blocks.
The beneficial effects of the present invention are: the core of this method is hydrolytic process, it is each when water-based slurry instills sintering furnace
The moisture to drip in based sizing evaporates rapidly, can quickly be sintered.Hydrolytic process can preferably reduce the temperature of sintering,
Opposite its soaking time of the method for other traditional sintering is shorter simultaneously, i.e. shortening sintering time.It keeps at the water-based slurry
It is delivered to sintering furnace in uniformly mixed state and constant speed, setting in this way enables to solidified body consistency obtained preferable, close
It spends larger.This method technical process is simple, energy conservation and environmental protection, safe and reliable, prepared solidified body have higher volumes density and
The advantages that lower nuclide leaching rate, can inhibit the migration of radioiodine in nature, method tool of the invention well
There is good prospects for commercial application.
Detailed description of the invention:
Fig. 1 is the schematic diagram of 4 aquation synthesis system of embodiment；
Fig. 2 is the schematic diagram of 4 aquation sintering equipment of embodiment；
Fig. 3 is the schematic diagram of the first angle of 5 aquation sintering equipment of embodiment；
Fig. 4 is the schematic diagram of the second angle of 5 aquation sintering equipment of embodiment；
Fig. 5 is the schematic diagram of embodiment 5 rotation controling mechanism and magazine；
Fig. 6 is the schematic diagram of 5 rotation controling mechanism of embodiment；
Fig. 7 is the schematic diagram of 5 magazine of embodiment；
Fig. 8 is the schematic diagram of 6 aquation sintering equipment of embodiment.
Each appended drawing reference in figure are as follows:
1, aquation sintering equipment；2, sintering furnace；3, sintering container；4, heating element；5, magazine；6, agitating element；
7, transfer pipeline；8, conveying device；9, metal tube；10, colloid hose；11, inlet；12, liquid outlet；13, heat exchange coil；
14, threaded hole；15, the first magnetic part；16, the second magnetic part；17, limited block；18, rotation controling mechanism；19, rack；20, it props up
Dagger；21, support base；22, rotation axis；23, locating slot；24, rotating electric machine；25, extension rod；26, sensor；27, stroke is opened
It closes；28, inflatable column；29, check valve；30, inflator pump；31, colloid mill.
Specific embodiment:
Below with reference to each attached drawing, the present invention will be described in detail.
Embodiment 1
In the present embodiment, with common iodo- 127 simulated radioactive nuclein iodo- 129.Present embodiment discloses one kind to contain iodine
Apply the aquation synthetic method of silver silica gel glass solidified body, comprising the following steps:
(1) borate raw material and the deposited silver-colored silica gel particle (maximum outside diameter is less than or equal to 200 μm) containing radioiodine are added
Mixed grinding after deionized water, obtains water-based slurry, wherein borate raw material is made of boron oxide, bismuth oxide and zinc oxide, is pressed
Mass percentage, boron oxide 60%, bismuth oxide 28%, zinc oxide 12%.In the raw material of water-based slurry, as mass fraction,
Deposited silver silica gel is 50.68%, radioactive pollutant iodine is 9.32%, borate glass raw material is 40.00%.When practice,
By mass percentage, boron oxide 40%~70%, bismuth oxide 22%~48%, zinc oxide 8%~12%；When practice,
In order to there is preferable solidification effect, as mass fraction, the deposited silver-colored silica gel particle containing iodine is 40%~70%, and borate raw material is
30%~60%, and the quality of radioiodine is no more than the 15% of mixture gross mass.In grinding, deionized water is as needed
Addition, it is preferred that the mass ratio of borate raw material and total quality and deionized water of the deposited silver-colored silica gel particle containing radioiodine
Control is 0.1~0.2, the present embodiment 0.1.
(2) control sintering furnace is warming up to 400 DEG C, keeps water-based slurry to be in uniformly mixed state by stirring, by water
Based sizing is delivered in sintering furnace with 10ml/min constant speed under the conditions of 30 DEG C and is sintered operation.When practice, water base slurry
Material temperature degree can control at 20-60 DEG C, and water-based slurry is delivered to the rate control of sintering furnace in 1-36ml/min, the sintering of setting
Temperature can control at 300 DEG C~600 DEG C.
(3) after the completion of water-based slurry conveying, sintering furnace is maintained at 400 DEG C of heat preservation 3h, is cooled to room temperature after the completion of heat preservation,
It obtains applying silver-colored silica gel glass solidified body containing iodine.When practice, the heat preservation duration of setting can be 3h~7h.
After tested, the bulk density of the borate glass sintered body obtained that silver-colored silica gel is applied containing iodine is 4.628g/cm3, PCT
The normalization leaching rate of radionuclide I is lower than 3.96 × 10 after 42 days under standard-4g·m-2·d-1。
When practice, the deposited silver-colored silica gel particle maximum outside diameter containing iodine of the present embodiment is less than or equal to 200 μm, passes through filtering
Net filtration obtains.
It further include to the deposited silver-colored silica gel containing radioiodine before the milling to guarantee that raw material weighing is accurate in the present embodiment
The pre-treatment step of particle, pre-treatment step include raw material being dried by drying process device, for example utilize Shanghai thinkling sound
Raw material is dried in the high temperature physics and chemistry case of the model PCD-2000 of Uoo experimental facilities Co., Ltd.
The core of this method is hydrolytic process, the moisture when water-based slurry instills sintering furnace, in each based sizing that drips
Evaporation rapidly, can quickly be sintered.Hydrolytic process can preferably reduce the temperature of sintering, while other are traditional relatively
Its soaking time of the method for sintering is shorter, i.e. shortening sintering time.Keep the water-based slurry be in uniformly mixed state and
Constant speed is delivered to sintering furnace, and setting in this way enables to solidified body consistency obtained preferable, and density is larger.
This method technical process is simple, energy conservation and environmental protection, safe and reliable, prepared solidified body have higher volumes density and
The advantages that lower nuclide leaching rate, can inhibit the migration of radioiodine in nature, method tool of the invention well
There is good prospects for commercial application.
Embodiment 2
In the present embodiment, with common iodo- 127 simulated radioactive nuclein iodo- 129.Present embodiment discloses one kind to contain iodine
Apply the aquation synthetic method of silver silica gel glass solidified body, comprising the following steps:
(1) deionized water is added in borate raw material and the deposited silver-colored silica gel particle (partial size is less than or equal to 200 μm) containing iodine
Mixed grinding afterwards obtains water-based slurry, wherein borate raw material is made of boron oxide, bismuth oxide and zinc oxide, by quality percentage
Number meter, boron oxide 50%, bismuth oxide 40%, zinc oxide 10%.In the raw material of water-based slurry, as mass fraction, silver silica gel is applied
65.65%, iodine 14.35%, borate raw material 20.00%.In the present embodiment, borate raw material and applying containing radioiodine
The mass ratio of total quality and deionized water of silver-colored silica gel particle is 0.1.
(2) control sintering furnace is warming up to 400 DEG C, keeps water-based slurry to be in uniformly mixed state by stirring, by water
Based sizing is delivered in sintering furnace with 30ml/min constant speed under the conditions of 30 DEG C and is sintered operation.
(3) after the completion of water-based slurry conveying, sintering furnace is maintained at 400 DEG C of heat preservation 3h, is cooled to room temperature after the completion of heat preservation,
It obtains applying silver-colored silica gel glass solidified body containing iodine.
After tested, the bulk density of the borate glass sintered body obtained that silver-colored silica gel is applied containing iodine is 4.184g/cm3, PCT
The normalization leaching rate of radionuclide I is lower than 7.62 × 10 after 42 days under standard-4g·m-2·d-1。
Embodiment 3
In the present embodiment, with common iodo- 127 simulated radioactive nuclein iodo- 129.Present embodiment discloses one kind to contain iodine
Apply the aquation synthetic method of silver silica gel glass solidified body, comprising the following steps:
(1) borate raw material and the deposited silver-colored silica gel particle (maximum outside diameter is less than or equal to 200 μm) containing radioiodine are added
Mixed grinding after deionized water, obtains water-based slurry, wherein borate raw material is made of boron oxide, bismuth oxide and zinc oxide.Water
In the raw material of based sizing, as mass fraction, silver silica gel 55.65%, iodine 14.35%, borate raw material 30.00% are applied.
In the present embodiment, borate raw material and the mass ratio of total quality and deionized water of the deposited silver-colored silica gel particle containing radioiodine are
0.1。
(2) control sintering furnace is warming up to 500 DEG C, keeps water-based slurry to be in uniformly mixed state by stirring, by water
Based sizing is delivered in sintering furnace with 10ml/min constant speed under the conditions of 30 DEG C and is sintered operation.
(3) after the completion of water-based slurry conveying, sintering furnace is maintained at 500 DEG C of heat preservation 3h, is cooled to room temperature after the completion of heat preservation,
It obtains applying silver-colored silica gel glass solidified body containing iodine.
After tested, the bulk density of the borate glass sintered body obtained that silver-colored silica gel is applied containing iodine is 5.994g/cm3, PCT
The normalization leaching rate of radionuclide I is lower than 3.36 × 10 after 42 days under standard-5g·m-2·d-1。
Embodiment 4
In the present embodiment, with common iodo- 127 simulated radioactive nuclein iodo- 129.Present embodiment discloses one kind to contain iodine
Apply the aquation synthetic method of silver silica gel glass solidified body, comprising the following steps:
(1) borate raw material and the deposited silver-colored silica gel particle (maximum outside diameter is less than or equal to 200 μm) containing radioiodine are added
Mixed grinding after deionized water, obtains water-based slurry, wherein borate raw material is made of boron oxide, bismuth oxide and zinc oxide.Water
In the raw material of based sizing, as mass fraction, silver silica gel 55.65%, iodine 14.35%, borate raw material 30.00% are applied.
In the present embodiment, borate raw material and the mass ratio of total quality and deionized water of the deposited silver-colored silica gel particle containing radioiodine are
0.2。
(2) control sintering furnace is warming up to 500 DEG C, keeps water-based slurry to be in uniformly mixed state by stirring, by water
Based sizing is delivered in sintering furnace with 10ml/min constant speed under the conditions of 30 DEG C and is sintered operation.
(3) after the completion of water-based slurry conveying, sintering furnace is maintained at 500 DEG C of heat preservation 3h, is cooled to room temperature after the completion of heat preservation,
It obtains applying silver-colored silica gel glass solidified body containing iodine.
After tested, the bulk density of the borate glass sintered body obtained that silver-colored silica gel is applied containing iodine is 5.218g/cm3, PCT
The normalization leaching rate of radionuclide I is lower than 7.76 × 10 after 42 days under standard-5g·m-2·d-1。
Embodiment 5
Present embodiment discloses a kind of aquation synthesis system, for implementing the present processes, such as embodiment 1,
2,3 or 4 method, as illustrated in fig. 1 and 2, the aquation synthesis system of the present embodiment includes aquation sintering equipment 1 and colloid mill 31,
Wherein, colloid mill 31 is used to mix and grind borate raw material and the deposited silver-colored silica gel particle containing radioiodine, obtains water-based slurry.
As shown in Figure 1,2 and 3, aquation sintering equipment 1 includes:
Sintering furnace 2, inside are equipped with sintering container 3 and heating element 4；
Magazine 5, for storing water-based slurry；
Agitating element 6 is arranged in magazine 5, for stirring water-based slurry；
Stirring driving element (is omitted in figure and is not drawn into), for driving agitating element 6 to rotate；
Transfer pipeline 7, for connecting sintering furnace 2 and magazine 5；
Conveying device 8 cooperates with transfer pipeline 7, for the water-based slurry in magazine 5 to be delivered to sintering furnace 2
In sintering container 3.
The working principle of aquation sintering equipment 1: heating element 4 works, and heat-agglomerating container 3, conveying device 8 passes through conveying
Water-based slurry in magazine 5 is input in sintering container 3 by pipeline 7, and the core of the application aquation sintering equipment 1 is one
Hydrolytic process, when water-based slurry instills sintering container 3, the moisture in each based sizing that drips evaporates rapidly, can quickly into
Row sintering.Hydrolytic process can preferably reduce the temperature of sintering, while the method for other opposite traditional sintering is protected for it
The warm time is shorter.
Cooperated by stirring driving element and agitating element 6, the raw material in water-based slurry can be made to be uniformly distributed, will not be gone out
Existing bottom deposit phenomenon, guarantees material homogeneity and consistency after sintering.When practice, heating element 4 can be Si-Mo rod.
As illustrated in fig. 1 and 2, in this present embodiment, transfer pipeline 7 includes the hollow metal tube 9 being mounted on sintering furnace 2
And one end docks the other end with metal tube 9 and is located at sintering container 3 for protruding into the colloid hose 10 of magazine 5, metal tube 9
Surface, the interior of metal tube 9 has coolant flow channel (not marking in figure), also has 11 He of inlet on metal tube 9
Liquid outlet 12, inlet 11 and liquid outlet 12 are connected to the both ends of coolant flow channel respectively, and one end of colloid hose 10 is from top to bottom
The hollow space of metal tube 9 is protruded into, and fixed with metal tube 9, the water-based slurry come out from colloid hose 10 instills sintering container 3
In；
Inlet 11 and liquid outlet 12 are connected with heat exchange element by pipeline (omit and be not drawn into figure) and (omit in figure and do not draw
Out), circulating pump (omit and be not drawn into figure) is installed, circulating pump is for driving the cooling medium in pipeline to flow on pipeline.
Temperature is higher in sintering furnace 2, if colloid hose 10 is directly protruding into sintering furnace 2 thawing that can be heated, by burning
There is the metal tube 9 of coolant flow channel can cool down to the end of colloid hose 10 for installation on freezing of a furnace 2, effectively prevent colloid soft
Pipe 10 melts.
It can make cooling medium (such as water) recycle stream between coolant flow channel, pipeline and heat exchange element by circulating pump
It is dynamic, to constantly cool down to metal tube 9, and then protect colloid hose 10.
When practice, heat exchange element can be water tank or other heat exchange structures.
In this present embodiment, conveying device 8 is peristaltic pump.Specifically, peristaltic pump, which can create sharp pump industry using Baoding, to be had
The peristaltic pump of the model BW100 of limit company.
In this present embodiment, agitating element 6 is magnetism stick, and stirring driving element is magnetic stirring apparatus.Specifically, magnetic force
Blender can use the magnetic stirring apparatus of Jiangsu Jin Yi instrument Science and Technology Ltd. model 85-2B.When practice, stirring
Element 6 can be stirring blade, and stirring driving element is stirring motor.
As shown in Fig. 2, in this present embodiment, sintering furnace 2 has threaded hole 14, the lateral wall and threaded hole 14 of metal tube 9
It is threadedly engaged.The form being threadedly engaged, it is easy for assemble or unload, and can be adjusted according to the needs between metal tube 9 and sintering container 3
Distance.
As illustrated in fig. 1 and 2, in the present embodiment, aquation sintering equipment 1 further includes support base 21, and it is fixed to have on support base 21
Position slot 23, the bottom of magazine 5 and the bottom wall of locating slot 23 lean, and stirring driving element is mounted on support base 21.
It in this present embodiment, further include that 23 side wall of locating slot is set or the pre- thermal element of bottom wall (is omitted in figure and do not drawn
Out), pre- thermal element is for heating magazine 5.When practice, pre- thermal element can be heater strip.It can by pre- thermal element
To preheat water-based slurry, subsequent aquation is facilitated to operate.
In the present embodiment, the magnetic stirring apparatus of model 85-2B is integrated with pre- thermal element.In other embodiments, support
Seat can be exactly magnetic stirring apparatus itself.
When practice, sintering furnace 2 can be KSS-1700 type high temperature Muffle furnace, and threaded hole can be subsequent in KSS-1700
Processing obtains on type high temperature Muffle furnace.
Embodiment 6
Present embodiment discloses a kind of aquation synthesis systems, and as shown in Fig. 3,4,5,6 and 7, the present embodiment has with embodiment 5
Following difference:
1, as shown in figure 3, in this present embodiment, the side wall of magazine 5 is equipped with the first magnetic part 15, colloid hose 10
The part for protruding into magazine 5 is equipped with the second magnetic part 16,16 magnetic attracting of the first magnetic part 15 and the second magnetic part.Pass through
The cooperation of first magnetic part 15 and the second magnetic part 16, the part that colloid hose 10 can be made to protrude into magazine 5 reliably limit
Firmly, guarantee that 10 end of colloid hose is located at the bottom wall of the lower part of magazine 5 and neighbouring magazine 5.In addition, this cooperation shape
Formula also facilitates the separation of colloid hose 10 Yu magazine 5.
2, as shown in figure 3, in this present embodiment, the inner sidewall of magazine 5 has a pair of spaced limited block 17,
Limited block 17 is located in magazine 5 upper region, and the part that colloid hose 10 protrudes into magazine 5 is located at two limited blocks 17
Between.Further colloid hose 10 can be defined by the way that a pair of of limited block 17 is arranged, prevented when agitating element 6 works
Lead to shaking of colloid hose 10 etc.；Limited block 17 is located in magazine 5 upper region, and setting in this way can reduce limit as far as possible
The adverse effect that position block 17 generates stirring operation.In this present embodiment, the first magnetic part 15 and the second magnetic part 16 at least one
A is magnet.
It 3, further include rotation controling mechanism 18 in this present embodiment, rotation controling mechanism 18 wraps as shown in Fig. 3,4,5 and 6
It includes:
Rack 19, there are two support columns 20 for tool；
Support base 21 is rotatably installed between two support columns 20 by rotation axis 22, has locating slot on support base 21
23, the lower end of magazine 5 is mounted in locating slot 23, and stirring driving element is mounted on support base 21；
Rotating electric machine 24 tilts magazine 5, makes magazine 5 for driving support base 21 to rotate relative to rack 19
Bottom wall area corresponding with 10 end of colloid hose position is minimum.
As water-based slurry is constantly conveyed, some water-based slurry in last magazine 5 can not be by colloid
Hose 10 sucks, and can change the position of magazine 5 by the way that rotation controling mechanism 18 is arranged, so that final stage, remaining
Water-based slurry can concentrate on the corresponding region in 10 end of colloid hose, so as to guarantee that water-based slurry being capable of substantially all quilt
It is delivered in sintering furnace 2.When practice, it may be provided so that rotation axis 22 is fixed on support base 21, rotating electric machine 24 is logical
It crosses gear set driving rotation axis 22 to rotate, the rotation of rotation axis 22 drives support base 21 to rotate.
As shown in figure 4, in this present embodiment, extension rod 25, the end position of extension rod 25 are equipped on one of column
In the surface of magazine 5, the end of extension rod 25 is equipped with the sensor 26 for measuring 5 liquid level of magazine.Pass through
Extension rod 25 and sensor 26 are set, 5 liquid level of magazine can be measured, can be set when threshold value of the liquid level lower than setting,
Rotating electric machine 24 works, and tilts magazine 5, makes the bottom wall area corresponding with 10 end of colloid hose of magazine 5 position
It is minimum.
When practice, extension rod 25 can be rotatably installed on column, and extension rod 25 has horizontal operation position, work as needs
When picking and placing magazine 5, Unscrew extension rod 25 makes extension rod 25 turn to horizontal operation position again after picking and placing magazine 5.
The setting in this way of extension rod 25, which can facilitate, picks and places magazine 5.
As shown in figure 3, in this present embodiment, travel switch 27, travel switch 27 and rotation are equipped on one of column
Rotating motor 24 is electrically connected, and is offseted when support base 21 turns to set angle with travel switch 27, and travel switch 27 is triggered.
By the way that travel switch 27 is arranged, the rotational angle of support base 21 can be limited, when support base 21 and travel switch 27
It offsets, when triggering travel switch 27, rotating electric machine 24 stops working.
As shown in Fig. 5,6 and 7, in this present embodiment, 23 bottom wall of locating slot have inflatable column 28, the bottom of magazine 5,
Check valve 29 is installed close to 17 region of limited block, when magazine 5 is put into locating slot 23, inflatable column 28 protrudes into check valve
29；
Support base 21 is also equipped with inflator pump 30, and inflator pump 30 is used to inflate to inflatable column 28, and single by check valve 29
To the input air into magazine 5.
When aquation sintering equipment 1 works, as water-based slurry is constantly transported away, the liquid level in magazine 5 declines, when
After decline to a certain extent, agitating element 6 cannot be stirred operation to remaining water-based slurry well, either, when
Support base 21 rotate after, agitating element 6 cannot be stirred operation to remaining water-based slurry, by be arranged inflatable column 28,
Check valve 29 and inflator pump 30 make it possible to be filled with gas into magazine 5, so as to the water-based slurry to remaining part
It is acted on, keeps the feed distribution of water-based slurry uniform.
When practice, filter screen and dry net are sequentially installed at the air inlet of inflator pump 30.It is filtered by setting
Net and dry net can filter the air, and remove impurity and vapor, prevent from bringing impurity to water-based slurry, influence to be sintered
Quality afterwards.
In this present embodiment, the end of inflatable column 28 is cone structure.The design of cone cell facilitates inflatable column 28 to be inserted into unidirectionally
In valve 29.
Embodiment 7
Present embodiment discloses a kind of aquation synthesis systems, as shown in figure 8, the present embodiment and the difference of embodiment 5 are,
In this present embodiment, heat exchange element is heat exchange coil 13, and heat exchange coil 13 is cylindrical in shape structure, and it is fixed that the lower end of heat exchange coil 13 is located at
In the slot 23 of position, the import of heat exchange coil 13 is connected to the liquid outlet 12 of metal tube 9, outlet and the metal tube 9 of heat exchange coil 13
Inlet 11 is connected to；
Magazine 5 is placed on the inside of heat exchange coil, and the bottom of magazine 5 and the bottom wall of locating slot 23 lean,
Stirring driving element is mounted on support base 21.
When work, the heat transferring medium in metal tube 9 can be constantly heated, and the heat transferring medium being heated is delivered to by circulating pump
Heat exchange coil, heat exchange coil exchanges heat with magazine 5, while making heat transferring medium cool down, can preheat magazine 5
In water-based slurry, this structure type can be omitted pre- thermal element, makes full use of the thermal energy of heat transferring medium.
In this implementation, 17 knot of the first magnetic part 15, the second magnetic part 16 and limited block in embodiment 4 is further comprised
Structure.
When practice, the heat exchange coil of the present embodiment be can be set in embodiment 5, while be cancelled in embodiment 5
Pre- thermal element.
The above description is only a preferred embodiment of the present invention, not thereby limits scope of patent protection of the invention, all
It is directly or indirectly to be used in other relevant technologies with equivalent structure transformation made by description of the invention and accompanying drawing content
Field similarly includes within the scope of the present invention.
Claims (10)
1. a kind of aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine, which comprises the following steps:
By borate raw material and mixed grinding after the deposited silver-colored silica gel particle addition deionized water containing radioiodine, water base slurry is obtained
Material；
Control sintering furnace is warming up to the sintering temperature of setting, and the water-based slurry is kept to be in uniformly mixed state, will be water base
Slurry constant speed, which is delivered in sintering furnace, is sintered operation；
It after the completion of water-based slurry conveying, is kept the temperature according to preset heat preservation duration, is cooled to room temperature, is contained after the completion of heat preservation
Iodine applies silver-colored silica gel glass solidified body.
2. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that containing radiation
Property iodine the maximum outside diameter of deposited silver-colored silica gel particle be less than or equal to 200 μm；Borate raw material and the deposited silver-colored silica gel containing radioiodine
The mass ratio of total quality and deionized water of grain is controlled 0.1~0.2.
3. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that the boron
Hydrochlorate raw material is made of boron oxide, bismuth oxide and zinc oxide, by mass percentage, boron oxide 40%~70%, bismuth oxide
22%~48%, zinc oxide 8%~12%.
4. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that borate
Raw material and the deposited silver-colored silica gel particle containing radioiodine, by mass percentage, the deposited silver-colored silica gel particle containing radioiodine is
40%~70%, the borate raw material is 30%~60%.
5. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as claimed in claim 4, which is characterized in that radioactivity
The quality of iodine is no more than the 15% of borate raw material and the deposited silver-colored silica gel particle gross mass containing radioiodine.
6. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that will be water base
Slurry constant speed, which is delivered in sintering furnace, to be sintered before operation, further includes the steps that preheating, preheating step are as follows: to water-based slurry
It is heated, controls the temperature of water-based slurry at 20-60 DEG C.
7. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that water base slurry
The rate that material is delivered to sintering furnace is 1-36ml/min.
8. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as described in claim 1, which is characterized in that setting
Sintering temperature is 300 DEG C~600 DEG C, when heat preservation of setting a length of 3h~7h.
9. the aquation synthetic method for applying silver-colored silica gel glass solidified body containing iodine as described in claim 1~8 any one, feature
It is, aquation synthetic method is implemented by aquation synthesis system, and the aquation synthesis system includes:
Sintering furnace, inside are equipped with sintering container and heating element；
Colloid mill obtains water-based slurry for mixing and grinding borate raw material and the deposited silver-colored silica gel particle containing radioiodine；
Magazine, for storing water-based slurry；
Agitating element is arranged in magazine, for stirring water-based slurry；
Driving element is stirred, for driving the agitating element to rotate；
Transfer pipeline, for connecting sintering furnace and the magazine；And
Conveying device cooperates with transfer pipeline, for the water-based slurry in magazine to be delivered to the sintering of the sintering furnace
In container；
The transfer pipeline includes that the hollow metal tube and one end being mounted on sintering furnace docks other end use with metal tube
In the colloid hose for protruding into magazine, the metal tube is located at the surface of the sintering container, the interior of metal tube
With coolant flow channel, also there is inlet and liquid outlet on metal tube, inlet and liquid outlet respectively with the both ends of coolant flow channel
Connection, the hollow space of the metal tube is protruded into one end of the colloid hose from top to bottom, and fixes with metal tube, from colloid
The water-based slurry that hose comes instills in the sintering container；The inlet and the liquid outlet have heat exchange by piping connection
Element is equipped with circulating pump on the pipeline, and the circulating pump is for driving the cooling medium in pipeline to flow.
10. the aquation synthetic method of silver-colored silica gel glass solidified body is applied containing iodine as claimed in claim 9, which is characterized in that described
Conveying device is peristaltic pump；The agitating element is magnetism stick, and the stirring driving element is magnetic stirring apparatus；The storing holds
The side wall of device is equipped with the first magnetic part, and the part that the colloid hose protrudes into magazine is equipped with the second magnetic part, described
First magnetic part and the second magnetic part magnetic attracting, the inner sidewall of the magazine have a pair of spaced limited block,
The limited block is located in magazine region, the part that colloid hose protrudes into magazine be located at two limited blocks it
Between.
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| CN111863304A (en) * | 2020-08-20 | 2020-10-30 | 中国原子能科学研究院 | Sodalite-based ceramic curing method for radioactive iodine waste |
| CN111863305A (en) * | 2020-08-20 | 2020-10-30 | 中国原子能科学研究院 | Method for curing radioactive iodine-containing silver-coated silica gel |
| CN114478003A (en) * | 2021-12-24 | 2022-05-13 | 西南科技大学 | Hydration sintering method for solidifying high-level waste by using gadolinium-zirconium pyrochlore powder as base material |
| CN114477733A (en) * | 2021-12-24 | 2022-05-13 | 西南科技大学 | Method for preparing granite-based glass solidified body through hydration sintering |
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