CN107477982A - The 316 titanium fluidized bed drying cooling techniques applied to sylvite - Google Patents
The 316 titanium fluidized bed drying cooling techniques applied to sylvite Download PDFInfo
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- CN107477982A CN107477982A CN201710687537.3A CN201710687537A CN107477982A CN 107477982 A CN107477982 A CN 107477982A CN 201710687537 A CN201710687537 A CN 201710687537A CN 107477982 A CN107477982 A CN 107477982A
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- sylvite
- dust
- drying
- titanium
- fluid bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/084—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed with heat exchange taking place in the fluidised bed, e.g. combined direct and indirect heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of 316 titanium fluidized bed drying cooling techniques applied to sylvite, including：1) one-level is dried, heat smoke is passed through into drying machine until the cold air in drying machine drains, sylvite wet feed is sent into drying machine, simultaneously, the anti-caking agent of liquid is sprayed to the drying machine with spray gun with 30min/L speed, the sylvite wet feed is sufficiently mixed in drying box with the anti-caking agent, and is dried and formed by the first sylvite dust；2) secondary drying 3) cooling, by the second sylvite dust and first mix dust, it is sent into fluid bed cooling section and is cooled down, obtain sylvite finished product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) empty.The present invention has the advantages of drying time is short, finished product grain size is small, can be widely applied to the technical field of drying of sylvite.
Description
Technical field
The present invention relates to the technical field of drying of sylvite, it is more particularly related to it is a kind of applied to sylvite 316
Titanium fluidized bed drying cooling technique.
Background technology
Sylvite is that the research on maximum utilized quantity of product is to be used for agricultural, and whole world sylvite product 95% is as Potassium Fertilizer, in addition
5% is used as the raw material of industry.Counted according to US Geological Survey, 83 hundreds of millions tons of the potassium ore reserves that the world in 2012 has been verified
(hundred million K20 meters), reserves basis is 16,700,000,000 tons, is available for the world to exploit more than 300 years.
In the production process of sylvite, it is an essential step to dry cooling.In the prior art, sylvite is dried cold
But during, the problems such as sylvite finished product caking is serious, fluid bed scabs, drying time is long, energy consumption is big be present.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide 316 titaniums applied to sylvite that a kind of drying time is short, finished product grain size is small
Fluidized bed drying cooling technique.
In order to realize according to object of the present invention and further advantage, there is provided a kind of 316 titanium streams applied to sylvite
Change bed and dry cooling technique, including：1) one-level is dried, and heat smoke is passed through into drying machine until the cold air in drying machine is arranged
To the greatest extent, sylvite wet feed is sent into drying machine, meanwhile, the anti-caking agent of liquid is sprayed to spray gun with 30min/L speed
The drying machine, the sylvite wet feed are sufficiently mixed in drying box with the anti-caking agent, and are dried and formed by the first sylvite
Dust；2) secondary drying, the first sylvite dust is uniform from the material inlet positioned at the top of 316 titanium fluidized bed drying sections
Rotation sprays into successively in three batches, and the interval time between adjacent two batches is 10min, and pressurizes and be passed through once between two batches are sprayed into
Heat smoke, keep the first sylvite dust to be contacted with heat smoke boiling, and air distribution plate, first potassium are vibrated with the frequency of 20s/ times
Salt dust is dried to form the second sylvite dust and the first tail gas in 316 titanium fluidized bed drying sections, and the first tail gas delivers to whirlwind point
The first dust isolated from device；3) cool down, by the second sylvite dust and first mix dust, it is cold to be sent into fluid bed
But section is cooled down, and obtains sylvite finished product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.
4) empty, the tail gas of drying machine and the fluid bed discharge, emptied after purification.
Preferably, the temperature of outgoing air of the secondary drying is at 130 DEG C -140 DEG C.
Preferably, the EAT of secondary drying is 400 DEG C -450 DEG C.
Preferably, the anti-caking agent is the mixture of urea and high fatty amine, the urea and high fatty amine
Quality parts ratio is 6:1.
Preferably, the tail gas of the drying machine and fluid bed outlet, through Wet-type spray washer, scrubbing tower dust separation and
After demisting, drawn by air-introduced machine, then emptied after exporting the further demisting of demister.
Preferably, the mass fraction of the anti-antagonist is 1%.
Preferably, it is cold to be sent into fluid bed for the second sylvite dust and first mix dust in the step 3)
But section is cooled down, and specifically includes following steps：S1：Dry ice that multiple particle diameters are 10mm is put into fluid bed cooling section, by the
The mixture of di-potassium dust and first dust is sent into fluid bed cooling section；S2：It is 10mm's to put into multiple particle diameters again
Dry ice is to fluid bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite powder
Dirt is blown afloat and cooled down by the cold air of the pressurization；S4：Mixture is after fluid bed cooling section cooling, from the fluid bed
Discharge port send out.
The present invention comprises at least following beneficial effect：
First, compared with the prior art, the present invention passes through secondary drying, the EAT raising of secondary drying, dry ice auxiliary
The processing methods such as cooling, the process for drying cooling is accelerated, therefore the present invention is 316 short applied to sylvite of a kind of drying time
Titanium fluidized bed drying cooling technique.
2nd, compared with the prior art, the present invention is uniformly added into anti-caking agent, pressure-vent, vibrates cloth by secondary drying
The measures such as aerofoil, sylvite wet feed is allowed thermally equivalent and to reduce caking in the drying process, therefore the present invention is that a kind of product cut size is small
The 316 titanium fluidized bed drying cooling techniques applied to sylvite.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Embodiment
With reference to embodiment, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
The present invention provides a kind of 316 titanium fluidized bed drying cooling techniques applied to sylvite, including：1) one-level is dried, to
Be passed through in drying machine heat smoke until drying machine in cold air drain, by sylvite wet feed be sent into drying machine in, meanwhile, by liquid
Anti-caking agent the drying machine is sprayed to 30min/L speed with spray gun, the sylvite wet feed is in drying box and institute
State anti-caking agent to be sufficiently mixed, and dry and formed by the first sylvite dust；2) secondary drying, by the first sylvite dust from position
Uniformly rotation sprays into material inlet in the top of 316 titanium fluidized bed drying sections successively in three batches, during interval between adjacent two batches
Between be 10min, and pressurization is passed through a heat smoke between two batches are sprayed into, and keeps the first sylvite dust to be seethed with excitement with heat smoke and connects
Touch, and with the vibration air distribution plate of the frequency of 20s/ time, the first sylvite dust is dried formation the in 316 titanium fluidized bed drying sections
Di-potassium dust and the first tail gas, the first tail gas deliver to isolated first dust of cyclone separator；3) cool down, by described second
Sylvite dust and first mix dust, it is sent into fluid bed cooling section and is cooled down, obtain sylvite finished product and the second tail gas；And
Second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) empty, the tail gas of drying machine and the fluid bed discharge, warp
Emptied after crossing purification.The drying of sylvite and cooling procedure include four steps, one-level drying, secondary drying, cooling and emptying；Design
Secondary drying and fluidized bed drying is secondary drying, be in order to ensure enter the moisture content of the first sylvite dust of fluidized bed compared with
It is low, avoid the local dead bed of fluid bed and scab；Anti-caking agent is added, and is uniformly added anti-caking agent in a manner of spraying
Enter the drying machine, being sufficiently mixed with sylvite prevents sylvite from luming；Anti-caking agent is that spray gun is added in a manner of liquid, but
It is to be dried by heat smoke the moment sprayed in drying machine, moisture will not be brought into.Secondary drying and the tail gas of cooling, process are secondary
Processing, dust is reclaimed, remain sylvite to greatest extent, and processing time is reduced to the process of post-processing tail gas.It is described
The rotation of first sylvite dust sprays into, and allows the first sylvite dust to disperse microparticle shape and enters, increases the contact surface with heat smoke；
Pressurization is passed through heat smoke, and the first sylvite dust is further dispelled out；Air distribution plate is vibrated, avoids the first sylvite dust in cloth
Deposited on aerofoil.
The temperature of outgoing air of the secondary drying is at 130 DEG C -140 DEG C.Contain some impurity in sylvite, the knot in these impurity
The removal temperature of brilliant water is more than 100 degree, therefore the delivery temperature of setting secondary drying is 130 DEG C -140 DEG C, it is ensured that the crystallization water
Remove.
The EAT of secondary drying is 400 DEG C -450 DEG C.Secondary drying EAT is higher, and drying time is shorter, but
In order to save energy consumption, the EAT of general setting secondary drying is 400 DEG C -450 DEG C.
The anti-caking agent is the mixture of urea and high fatty amine, the mass fraction of the urea and high fatty amine
Than for 6:1.The high fatty amine is any of C17 high fatty amine, C18 high fatty amine, or the two is mixed
Compound.
The tail gas of drying machine and the fluid bed outlet, after Wet-type spray washer, scrubbing tower dust separation and demisting,
Drawn by air-introduced machine, then emptied after exporting the further demisting of demister.Tail gas empties after treatment, in order to avoid be expelled directly out making
Into air pollution.
The mass fraction of the anti-antagonist is 1%.The mass fraction of anti-antagonist is 1%, is the preferred side of the present invention
Case, in this scheme, sylvite conglomeration situation is less.
By the second sylvite dust and first mix dust in the step 3), it is sent into fluid bed cooling section and carries out
Cooling, specifically includes following steps：S1：Put into multiple particle diameters be 10mm dry ice to fluid bed cooling section, by the second sylvite powder
The mixture of dirt and first dust is sent into fluid bed cooling section；S2：The dry ice that multiple particle diameters are 10mm is put into again extremely to flow
Change bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite dust are described
The cold air of pressurization blows afloat and cooled down；S4：Mixture is after fluid bed cooling section cooling, from the discharge port of the fluid bed
Send out.The dry ice for being laid on the second sylvite dust bottom is contacted by thermal evaporation, carbon dioxide gas after gasification with the second sylvite dust
Body up walks to make the second sylvite dust to loosen, beneficial to uniform cooling；It is laid on the dry ice and second on the second sylvite dust surface
Sylvite dust contacts, and when gasifying in hot-air, further takes away heat；Dry ice is not aqueous；The second sylvite dust is blown afloat, can
To allow it fully to be contacted with cold air.
40t sylvite wet feed is divided into 4 deciles, respectively using embodiment one, embodiment two, embodiment three and contrast
The example step, is dried and cools down to sylvite.
Embodiment one：
1) one-level dry, be passed through into drying machine heat smoke until drying machine in cold air drain, sylvite wet feed is sent
Enter in drying machine, meanwhile, the anti-caking agent spray gun that the mass fraction of liquid is 1% is sprayed with 30min/L speed
30min is sufficiently mixed in drying box with the anti-caking agent to the drying machine, the sylvite wet feed, and is dried and formed by the
One sylvite dust；2) secondary drying, the EAT of secondary drying is 400 DEG C, by the first sylvite dust from positioned at 316 titaniums
Uniformly rotation sprays into successively in three batches for the material inlet on the top of fluidized bed drying section, and the interval time between adjacent two batches is
10min, and pressurization is passed through a heat smoke between two batches are sprayed into, and keeps the first sylvite dust to be contacted with heat smoke boiling,
And air distribution plate is vibrated with the frequency of 20s/ times, the first sylvite dust is dried formation second in 316 titanium fluidized bed drying sections
Sylvite dust and the first tail gas, the first tail gas deliver to isolated first dust of cyclone separator, and delivery temperature is at 130 DEG C；3)
Cooling, will the second sylvite dust and first mix dust, feeding fluid bed cooling section cooled down, obtain sylvite into
Product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) empty, the drying machine and fluidisation
The tail gas of bed discharge, by after Wet-type spray washer, scrubbing tower dust separation and demisting, being drawn by air-introduced machine, then through going out
Emptied after the mouth further demisting of demister；
Wherein, the second sylvite dust and first mix dust are sent into fluid bed cooling in the step 3)
Duan Jinhang is cooled down, and specifically includes following steps：S1：Put into multiple particle diameters be 10mm dry ice to fluid bed cooling section, by second
The mixture of sylvite dust and first dust is sent into fluid bed cooling section；S2：It is 10mm's to put into multiple particle diameters again
Dry ice is to fluid bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite powder
Dirt is blown afloat and cooled down by the cold air of the pressurization；S4：Mixture is after fluid bed cooling section cooling, from the fluid bed
Discharge port send out.
Embodiment two：
1) one-level dry, be passed through into drying machine heat smoke until drying machine in cold air drain, sylvite wet feed is sent
Enter in drying machine, meanwhile, the anti-caking agent spray gun that the mass fraction of liquid is 1% is sprayed with 30min/L speed
30min is sufficiently mixed in drying box with the anti-caking agent to the drying machine, the sylvite wet feed, and is dried and formed by the
One sylvite dust；2) secondary drying, the EAT of secondary drying is 425 DEG C, by the first sylvite dust from positioned at 316 titaniums
Uniformly rotation sprays into successively in three batches for the material inlet on the top of fluidized bed drying section, and the interval time between adjacent two batches is
10min, and pressurization is passed through a heat smoke between two batches are sprayed into, and keeps the first sylvite dust to be contacted with heat smoke boiling,
And air distribution plate is vibrated with the frequency of 20s/ times, the first sylvite dust is dried formation second in 316 titanium fluidized bed drying sections
Sylvite dust and the first tail gas, the first tail gas deliver to isolated first dust of cyclone separator, and delivery temperature is at 135 DEG C；3)
Cooling, will the second sylvite dust and first mix dust, feeding fluid bed cooling section cooled down, obtain sylvite into
Product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) empty, the drying machine and fluidisation
The tail gas of bed discharge, by after Wet-type spray washer, scrubbing tower dust separation and demisting, being drawn by air-introduced machine, then through going out
Emptied after the mouth further demisting of demister；
Wherein, the second sylvite dust and first mix dust are sent into fluid bed cooling in the step 3)
Duan Jinhang is cooled down, and specifically includes following steps：S1：Put into multiple particle diameters be 10mm dry ice to fluid bed cooling section, by second
The mixture of sylvite dust and first dust is sent into fluid bed cooling section；S2：It is 10mm's to put into multiple particle diameters again
Dry ice is to fluid bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite powder
Dirt is blown afloat and cooled down by the cold air of the pressurization；S4：Mixture is after fluid bed cooling section cooling, from the fluid bed
Discharge port send out.
Embodiment three：
1) one-level dry, be passed through into drying machine heat smoke until drying machine in cold air drain, sylvite wet feed is sent
Enter in drying machine, meanwhile, the anti-caking agent spray gun that the mass fraction of liquid is 1% is sprayed with 30min/L speed
30min is sufficiently mixed in drying box with the anti-caking agent to the drying machine, the sylvite wet feed, and is dried and formed by the
One sylvite dust；2) secondary drying, the EAT of secondary drying is 450 DEG C, by the first sylvite dust from positioned at 316 titaniums
Uniformly rotation sprays into successively in three batches for the material inlet on the top of fluidized bed drying section, and the interval time between adjacent two batches is
10min, and pressurization is passed through a heat smoke between two batches are sprayed into, and keeps the first sylvite dust to be contacted with heat smoke boiling,
And air distribution plate is vibrated with the frequency of 20s/ times, the first sylvite dust is dried formation second in 316 titanium fluidized bed drying sections
Sylvite dust and the first tail gas, the first tail gas deliver to isolated first dust of cyclone separator, and delivery temperature is at 140 DEG C；3)
Cooling, will the second sylvite dust and first mix dust, feeding fluid bed cooling section cooled down, obtain sylvite into
Product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) empty, the drying machine and fluidisation
The tail gas of bed discharge, by after Wet-type spray washer, scrubbing tower dust separation and demisting, being drawn by air-introduced machine, then through going out
Emptied after the mouth further demisting of demister；
Wherein, the second sylvite dust and first mix dust are sent into fluid bed cooling in the step 3)
Duan Jinhang is cooled down, and specifically includes following steps：S1：Put into multiple particle diameters be 10mm dry ice to fluid bed cooling section, by second
The mixture of sylvite dust and first dust is sent into fluid bed cooling section；S2：It is 10mm's to put into multiple particle diameters again
Dry ice is to fluid bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite powder
Dirt is blown afloat and cooled down by the cold air of the pressurization；S4：Mixture is after fluid bed cooling section cooling, from the fluid bed
Discharge port send out.
Comparative example：Existing dry technology is dried.
As a result it is as shown in the table：
It was found from above table, the drying time of three embodiments is shorter than the drying time of comparative example, and three implementations
The obtained product cut size of example more than 100 mesh occupy product population more than 9.5%, and comparative example only only has 4.6%；Three
The product cut size that individual embodiment obtains occupies the majority between the mesh of 80 mesh -100, and the product cut size that comparative example obtains is in 60 mesh -80
Occupied the majority between mesh.The drying time that result above demonstrates the present invention is short, and the less advantage of product cut size.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the embodiment with description.
Claims (7)
- A kind of 1. 316 titanium fluidized bed drying cooling techniques applied to sylvite, it is characterised in that including：1) one-level is driedBe passed through into drying machine heat smoke until drying machine in cold air drain, by sylvite wet feed be sent into drying machine in, meanwhile, The anti-caking agent of liquid is sprayed to the drying machine with spray gun with 30min/L speed, the sylvite wet feed is in drying box It is interior to be sufficiently mixed with the anti-caking agent, and dry and formed by the first sylvite dust；2) secondary dryingThe first sylvite dust is uniformly revolved successively in three batches from the material inlet positioned at the top of 316 titanium fluidized bed drying sections Turn to spray into, the interval time between adjacent two batches is 10min, and pressurization is passed through a heat smoke between two batches are sprayed into, and is kept First sylvite dust contacts with heat smoke boiling, and vibrates air distribution plate with the frequency of 20s/ times, and the first sylvite dust is 316 Titanium fluidized bed drying section is dried to form the second sylvite dust and the first tail gas, and it is isolated that the first tail gas delivers to cyclone separator First dust；3) cool downBy the second sylvite dust and first mix dust, be sent into fluid bed cooling section and cooled down, obtain sylvite into Product and the second tail gas；And the second tail gas is reclaimed by sack cleaner to obtain sylvite finished product.4) emptyThe tail gas of drying machine and the fluid bed discharge, is emptied after purification.
- 2. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that described two The temperature of outgoing air that level is dried is at 130 DEG C -140 DEG C.
- 3. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that two level is done Dry EAT is 400 DEG C -450 DEG C.
- 4. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that described anti- Agglomeration agent is the mixture of urea and high fatty amine, and the quality parts ratio of the urea and high fatty amine is 6:1.
- 5. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that described dry The tail gas of dry machine and fluid bed outlet, after Wet-type spray washer, scrubbing tower dust separation and demisting, is drawn by air-introduced machine, Emptied again after exporting the further demisting of demister.
- 6. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that described anti- The mass fraction of antagonist is 1%.
- 7. it is applied to 316 titanium fluidized bed drying cooling techniques of sylvite as claimed in claim 1, it is characterised in that the step It is rapid 3) in will the second sylvite dust and first mix dust, feeding fluid bed cooling section cooled down, specifically include Following steps：S1：Dry ice that multiple particle diameters are 10mm is put into fluid bed cooling section, by the second sylvite dust and first dust Mixture is sent into fluid bed cooling section；S2：Dry ice that multiple particle diameters are 10mm is put into again to fluid bed cooling section；S3：The cold air for the pressurization being passed through with the frequency of 10s/ times from fluidized-bed bottom, the second sylvite dust is by the pressurization Cold air blows afloat and cooled down；S4：Mixture is sent out after fluid bed cooling section cooling from the discharge port of the fluid bed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156876A (en) * | 2020-07-24 | 2021-01-01 | 广东郡睿环保科技有限公司 | Method for improving recovery rate of nonferrous metals in household garbage incinerator slag |
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| US3966975A (en) * | 1970-12-21 | 1976-06-29 | Aktieselskabet Niro Atomizer | Method for producing agglomerated powders and apparatus for performing the method |
| CN1400161A (en) * | 2001-07-28 | 2003-03-05 | 天津大学 | Industrial sodium nitrite new product and its preparation method |
| CN1554280A (en) * | 2003-12-23 | 2004-12-15 | 国家海洋局天津海水淡化与综合利用研 | New process for preventing refinery salt from caking |
| CN101372318A (en) * | 2008-08-21 | 2009-02-25 | 陶华西 | Anti-caking processing method of potassium monopersulfate compound salt |
| CN104817703A (en) * | 2015-04-21 | 2015-08-05 | 李计双 | Humate production process |
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2017
- 2017-08-11 CN CN201710687537.3A patent/CN107477982B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966975A (en) * | 1970-12-21 | 1976-06-29 | Aktieselskabet Niro Atomizer | Method for producing agglomerated powders and apparatus for performing the method |
| CN1400161A (en) * | 2001-07-28 | 2003-03-05 | 天津大学 | Industrial sodium nitrite new product and its preparation method |
| CN1554280A (en) * | 2003-12-23 | 2004-12-15 | 国家海洋局天津海水淡化与综合利用研 | New process for preventing refinery salt from caking |
| CN101372318A (en) * | 2008-08-21 | 2009-02-25 | 陶华西 | Anti-caking processing method of potassium monopersulfate compound salt |
| CN104817703A (en) * | 2015-04-21 | 2015-08-05 | 李计双 | Humate production process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156876A (en) * | 2020-07-24 | 2021-01-01 | 广东郡睿环保科技有限公司 | Method for improving recovery rate of nonferrous metals in household garbage incinerator slag |
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| CN107477982B (en) | 2019-04-12 |
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