CN204509122U - For the drying installation to phosphogypsum - Google Patents
For the drying installation to phosphogypsum Download PDFInfo
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- CN204509122U CN204509122U CN201520079034.4U CN201520079034U CN204509122U CN 204509122 U CN204509122 U CN 204509122U CN 201520079034 U CN201520079034 U CN 201520079034U CN 204509122 U CN204509122 U CN 204509122U
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- phosphogypsum
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- pneumatic dryer
- collection device
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Abstract
A kind of for the drying installation to phosphogypsum, include the pneumatic dryer (3) for the first step drying process of phosphogypsum, connect with pneumatic dryer (3) and hot gas flow source body (2) of hot gas flow is provided, connect with the outlet end of pneumatic dryer (3) and first step meal collection device for collecting phosphogypsum intermediate, to connect with the outlet end of first step meal collection device and for the fluidizing furnace (6) of the second stage drying process to phosphogypsum, connect with the outlet end of fluidizing furnace (6) and second stage meal collection device for collecting dry phosphogypsum, achieve twice drying process, dry phosphogypsum water content is made to be less than 5%, no longer using phosphogypsum as a kind of industrial wastes, therefore make use of a kind of raw material of phosphogypsum as building materials and agricultural fertilizer.
Description
Technical field
The utility model relates to a kind of drying installation, especially a kind of for the drying installation to phosphogypsum.
Background technology
Phosphogypsum is the waste residue of Phosphate Fertilizer Industry, its main application is Sulphuric acid jointly producing cement, produce concrete retardation agent, building material made processed, potassium sulfate making, make soil improvement agent and sulphur calcareous fertilisers, therefore for the drying installation of phosphogypsum being a kind of important chemical industry method and chemical plant installations, existing in the drying installation of phosphogypsum, also do not have a kind of for the drying installation to phosphogypsum, cause phosphogypsum not to be utilized as a kind of industrial wastes.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of for the drying installation to phosphogypsum, therefore make use of a kind of raw material of phosphogypsum as building materials and agricultural fertilizer.
For achieving the above object, the technical scheme that the utility model is taked is: the pneumatic dryer including the first step drying process for phosphogypsum, connect with pneumatic dryer and the hot gas flow source body of hot gas flow is provided, connect with the outlet end of pneumatic dryer and first step meal collection device for collecting phosphogypsum intermediate, connect with the outlet end of first step meal collection device and for the second stage drying process to phosphogypsum fluidizing furnace, connect with the outlet end of fluidizing furnace and second stage meal collection device for collecting dry phosphogypsum.
By pneumatic dryer, first step drying process is carried out to phosphogypsum, phosphogypsum intermediate is collected by first step meal collection device, by fluidizing furnace, again drying is carried out to phosphogypsum intermediate, dry phosphogypsum is obtained by second stage meal collection device, owing to devising pneumatic dryer, fluidizing furnace, first step meal collection device and second stage meal collection device, achieve twice drying process, dry phosphogypsum water content is made to be less than 5%, no longer using phosphogypsum as a kind of industrial wastes, therefore make use of a kind of raw material of phosphogypsum as building materials and agricultural fertilizer.
The utility model devises, also include pulverizer and ball mill, first step meal collection device is set to include tornado dust collector and bag filter, second stage meal collection device is set to electric precipitator, the input terminus port of pulverizer is provided with feed hopper and the output terminal port of pulverizer is set to be connected with the material input terminus port of pneumatic dryer by belt conveyor and stirring cage drawing-in device successively, the output terminal port of hot gas flow source body is set to connect with the hot gas input terminus port of pneumatic dryer, the material output terminal port of pneumatic dryer is placed through tornado dust collector and connects with the input terminus port of bag filter, the output terminal port of bag filter is placed through lifting gear and connects with the material input terminus port of fluidizing furnace, the material output terminal port of fluidizing furnace is set to connect with the input terminus port of electric precipitator, the output terminal port of electric precipitator is set to connect with the input terminus port of ball mill.
Technique effect of the present utility model is: the raw material phosphor gypsum of moisture about 35% is dropped into pulverizer and carries out pulverization process, the phosphogypsum after pulverizing enters hopper through belt, and the phosphogypsum in hopper inputs pneumatic dryer through worm conveyor; Raw coal is sprayed into hotblast stove after coal pulverizer is pulverized, and formation temperature is at the hot blast of 500 DEG C after hotblast stove combustion for raw coal, and hot blast enters system rapidly under induced draft fan traction bottom pneumatic dryer; Enter the high hot blast of pneumatic dryer inner bottom part flow velocity the precomminution phosphogypsum entering pneumatic dryer is dispelled, and drive it to flow into tornado dust collector with air-flow rising; Air-flow rotating fluid in tornado dust collector goes out, and the work in-process phosphogypsum that weight is larger drops to bottom tornado dust collector, and discharges through star ash valve; The phosphogypsum powder of lighter in weight enters bag filter with air-flow; The filter bag of bag filter is discharged after the phosphogypsum seizure in air-flow through bottom star ash valve, and the air-flow of remaining moisture vapor is through induced draft fan outlet discharge system; From the phosphogypsum moisture about 25% that tornado dust collector and bag filter are discharged, be pooled in bucket elevator, send into fluidized drying stove by a bucket elevator watt bucket; The phosphogypsum entering fluidizing furnace is blown afloat by bottom roots blower, constantly boiling, and is continued dehydration by heating coil continuous heating in fluidizing furnace, and the water vapour of generation is taken away by end wind; Floating phosphogypsum grains is discharged fluidizing furnace after being caught by top electric precipitation and is entered ball mill; After the phosphogypsum entering ball mill is broken up process further, become qualified phosphogypsum, then send into finished product storage tank through bucket elevator.Owing to devising raw material pulverizing machinery, therefore effectively make use of the heat that hotblast stove produces; Devise pneumatic dryer to dry gypsum; Devise tornado dust collector and belt dust-precipitator, can all collect work in-process phosphogypsum, avoid environment dust pollution; Devise fluidizing furnace, use 160 DEG C of steam or thermal oil thermostatically heating, the used heat that other production system produces can be utilized.The utility model design adds ball mill, dried needle-like, strip phosphogypsum can be continued to break up, improve quality product.
In the technical program, realizing the pneumatic dryer of secondary drying process, fluidizing furnace, first step meal collection device and second stage meal collection device to phosphogypsum is important technical characteristic, in the technical field for the drying installation to phosphogypsum, there is novelty, creativeness and practicality.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is an embodiment of the present utility model, illustrate the present embodiment by reference to the accompanying drawings, include pulverizer 1, hot gas flow source body 2, pneumatic dryer 3, tornado dust collector 4, bag filter 5, fluidizing furnace 6, electric precipitator 7 and ball mill 8, the input terminus port of pulverizer 1 is provided with feed hopper and the output terminal port of pulverizer 1 is set to be connected with the material input terminus port of pneumatic dryer 3 by belt conveyor and stirring cage drawing-in device successively, the output terminal port of hot gas flow source body 2 is set to connect with the hot gas input terminus port of pneumatic dryer 3, the material output terminal port of pneumatic dryer 3 is placed through tornado dust collector 4 and connects with the input terminus port of bag filter 5, the output terminal port of bag filter 5 is placed through lifting gear and connects with the material input terminus port of fluidizing furnace 6, the material output terminal port of fluidizing furnace 6 is set to connect with the input terminus port of electric precipitator 7, the output terminal port of electric precipitator 7 is set to connect with the input terminus port of ball mill 8.
Its drying means,
The steps include:
A, moisture 35%-50% phosphogypsum is made 20-50 object granule, use temperature is 450-600 DEG C, flow velocity be 25-30m the hot gas flow of S, rotating speed be 48r m stirring cage in, phosphogypsum is mixed with hot gas flow;
B, make phosphogypsum and hot gas flow mixture under parameter is the blower unit effect of n=1450r/min Q=18477m3/h P=9310pa, enter into the pneumatic dryer 3 that parameter is diameter 600mm, being obtain phosphogypsum intermediate in the tornado dust collector 4 of diameter 500mm height 2500mm in the parameter be connected with pneumatic dryer 3, is obtain phosphogypsum intermediate in the bag filter of air quantity 8000m3/h efficiency of dust collection >=99% deashing pressure 0.6Mpa exit concentration < 30mg/m3 in the parameter with pneumatic dryer 3;
C, by bucket lifting device, it is in the fluidizing furnace 6 of 5m × 5m × 10m temperature 160 DEG C that phosphogypsum intermediate is put into parameter, obtains dry phosphogypsum in the electric precipitator 7 be connected with fluidizing furnace;
D, the phosphogypsum of drying under the effect of ball mill 8, obtain phosphogypsum finished product.
In the present embodiment, phosphogypsum intermediate refers to the mixture of 2 water gypsum and semi-hydrated gypsum.
The utility model has lower feature:
1, owing to devising pneumatic dryer 3, fluidizing furnace 6, first step meal collection device and second stage meal collection device, achieve twice drying process, dry phosphogypsum water content is made to be less than 5%, no longer using phosphogypsum as a kind of industrial wastes, therefore make use of a kind of raw material of phosphogypsum as building materials and agricultural fertilizer.
2, owing to devising tornado dust collector 4, bag filter 5 and electric precipitator 7, better to the collecting effect of phosphogypsum.
3, owing to devising pulverizer 1, hot gas flow source body 2, pneumatic dryer 3, tornado dust collector 4, bag filter 5, fluidizing furnace 6, electric precipitator 7 and ball mill 8, the drying of phosphogypsum is achieved to the production process of integration, improve the drying efficiency of phosphogypsum.
Above-described embodiment is a kind of way of realization for the drying installation to phosphogypsum provided by the utility model; according to other distortion of scheme provided by the utility model; the composition increased or reduce wherein or step; or the utility model is used for other the technical field close with the utility model, all belongs to protection domain of the present utility model.
Claims (2)
1. one kind for the drying installation to phosphogypsum, it is characterized in that: include the pneumatic dryer (3) for the first step drying process of phosphogypsum, connect with pneumatic dryer (3) and hot gas flow source body (2) of hot gas flow is provided, connect with the outlet end of pneumatic dryer (3) and first step meal collection device for collecting phosphogypsum intermediate, connect with the outlet end of first step meal collection device and for the second stage drying process to phosphogypsum fluidizing furnace (6), connect with the outlet end of fluidizing furnace (6) and second stage meal collection device for collecting dry phosphogypsum.
2. according to claim 1 for the drying installation to phosphogypsum; it is characterized in that: also include pulverizer (1) and ball mill (8), first step meal collection device is set to include tornado dust collector (4) and bag filter (5), second stage meal collection device is set to electric precipitator (7), the input terminus port of pulverizer (1) is provided with feed hopper and the output terminal port of pulverizer (1) is set to be connected with the material input terminus port of pneumatic dryer (3) by belt conveyor and stirring cage drawing-in device successively, the output terminal port in hot gas flow source body (2) is set to connect with the hot gas input terminus port of pneumatic dryer (3), the material output terminal port of pneumatic dryer (3) is placed through tornado dust collector (4) and connects with the input terminus port of bag filter (5), the output terminal port of bag filter (5) is placed through lifting gear and connects with the material input terminus port of fluidizing furnace (6), the material output terminal port of fluidizing furnace (6) is set to connect with the input terminus port of electric precipitator (7), the output terminal port of electric precipitator (7) is set to connect with the input terminus port of ball mill (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079034.4U CN204509122U (en) | 2015-02-05 | 2015-02-05 | For the drying installation to phosphogypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079034.4U CN204509122U (en) | 2015-02-05 | 2015-02-05 | For the drying installation to phosphogypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204509122U true CN204509122U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079034.4U Expired - Fee Related CN204509122U (en) | 2015-02-05 | 2015-02-05 | For the drying installation to phosphogypsum |
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| Country | Link |
|---|---|
| CN (1) | CN204509122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824472A (en) * | 2016-12-05 | 2017-06-13 | 张官会 | Ball milling processing unit (plant) |
| CN108212295A (en) * | 2017-12-28 | 2018-06-29 | 四川绵竹三佳饲料有限责任公司 | A kind of phosphogypsum slag collection system |
-
2015
- 2015-02-05 CN CN201520079034.4U patent/CN204509122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824472A (en) * | 2016-12-05 | 2017-06-13 | 张官会 | Ball milling processing unit (plant) |
| CN108212295A (en) * | 2017-12-28 | 2018-06-29 | 四川绵竹三佳饲料有限责任公司 | A kind of phosphogypsum slag collection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20170205 |