CN108715558A - A kind of method that potassium sulfate ball-type is granulated - Google Patents
A kind of method that potassium sulfate ball-type is granulated Download PDFInfo
- Publication number
- CN108715558A CN108715558A CN201810579556.9A CN201810579556A CN108715558A CN 108715558 A CN108715558 A CN 108715558A CN 201810579556 A CN201810579556 A CN 201810579556A CN 108715558 A CN108715558 A CN 108715558A
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- China
- Prior art keywords
- potassium sulfate
- mass percent
- sulfate powder
- mixing
- whole mixtures
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/005—Fertilisers containing potassium post-treatment
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of methods that potassium sulfate ball-type is granulated, and are produced according to following technological process：Feeding, batch mixing, extruder, screening, drying, finished granule, wherein feeding, mixing step needs match the potassium sulfate powder that different grain size forms according to following grading table, the mass percent that+100 purpose potassium sulfate powder account for whole mixtures is 51%, the mass percent that 100-160 purpose potassium sulfate powder account for whole mixtures is 24%, the mass percent that 160-200 purpose potassium sulfate powder account for whole mixtures is 15%, the mass percent that -200 purpose potassium sulfate powder account for whole mixtures is 10%, the water that mass percent is 1.2% is added in mixing for each grain purpose potassium sulfate powder, enter extruder after mixing.Not only material squeezing effect is good by the present invention, but also gained granule strength, ratio of briquetting, wear-resistant rate higher.
Description
Technical field
The present invention relates to a kind of methods that potassium sulfate ball-type is granulated.
Background technology
On potash fertilizer industry, common prilling process has spray process, granulating method and extrusion three categories.
Spray process is mainly used for the low melting points granulation of fertilizer such as urea, has the characteristics that grain forming is preferable, the disadvantage is that requiring
Product has eutectic dot characteristics（Generally below 300 DEG C）, to potassium sulfate（1069 DEG C of fusing point）Equal high-melting-points potash fertilizer is granulated not applicable.
Granulating method is chiefly used in the production of compound fertilizer, has former simple in structure, single machine yield is big, is formed by particle
Easily quickly it is relatively low to be formed by granule strength the disadvantage is that particle uniformity is bad for the strong feature of dissolving, drenched property.
Extruder granulation has the characteristics that processing capacity is big, granule strength is high, low energy consumption, is widely used, the disadvantage is that two pairs of rollers
Axis requirement is relatively high, and spherical crushing strength is limited, mold is fragile.
Existing potassium sulfate prilling predominantly squeezes irregular granulation, and equipment is mainly that spiral and two pairs of rollers extruding are set
Standby, products obtained therefrom granularity is uneven, and ratio of briquetting is low, and Dust Capacity is big, and mobility is poor；But more successful potassium sulfate rule is granulated,
The country has not been reported at present.
Invention content
The purpose of the present invention is to provide a kind of methods that potassium sulfate ball-type is granulated, and not only material squeezing effect is good, but also
Gained granule strength, ratio of briquetting, wear-resistant rate higher.
The object of the present invention is achieved like this, a kind of method that potassium sulfate ball-type is granulated, according to following technological process into
Row production：Feeding, batch mixing, extruder, screening, drying, finished granule, wherein feeding, mixing step are needed according to following grading
Table matches the potassium sulfate powder that different grain size forms, and+100 purpose potassium sulfate powder account for the quality hundred of whole mixtures
Point than for 51%, 100-160 purpose potassium sulfate powder account for the mass percent of whole mixtures be 24%, 160-200 mesh
Potassium sulfate powder account for whole mixtures mass percent be 15%, -200 purpose potassium sulfate powder account for whole mixtures
Mass percent is 10%, and the water that mass percent is 1.2% is added in mixing for each grain purpose potassium sulfate powder, enters after mixing
Extruder.
Guo Touluo potassium company has investigated German stalwart Berne company April in March, 2014-and France SAHUT-CONREUR is public
Department（Abbreviation SC companies）, set about carrying out potassium sulfate marumerizer technical research, carry out granulating technique with SC companies of France within 2015
R & D Cooperation, the end of the year in the same year to MP280 comminutors carry out single machine experiment, obtain rule potassium sulfate ball-type pellet.Experiment card
It is bright：Equipment operation and material squeezing effect are best when moisture 1.2% or so.Comminutor pan feeding is according to the grading Conditions Condition
After grading, gained granule strength, ratio of briquetting, wear-resistant rate higher.Enter drying stage after gradation sizing, screenings returns to leading portion
It uses.Gained potassium sulfate spherical particles finished product mean intensity is 38.24N after drying.
Specific implementation mode
A kind of method that potassium sulfate ball-type is granulated, is produced according to following technological process：Feeding, batch mixing, extruder, screening,
Drying, finished granule, wherein feeding, mixing step need the potassium sulfate powder formed different grain size according to following grading table into
Row proportioning, the mass percent that+100 purpose potassium sulfate powder account for whole mixtures are 51%, 100-160 purpose potassium sulfates
The mass percent that powder accounts for whole mixtures is the quality that 24%, 160-200 purpose potassium sulfate powder account for whole mixtures
Percentage is that account for the weight percent of whole mixtures be 10% to 15%, -200 purpose potassium sulfate powder, each grain purpose potassium sulfate
The water that mass percent is 1.2% is added in mixing for powder, enters extruder after mixing.
Claims (1)
1. a kind of method that potassium sulfate ball-type is granulated, is produced according to following technological process：Feeding, batch mixing, extruder, sieve
Divide, dry, finished granule, it is characterised in that：Wherein feeding, mixing step needs form different grain size according to following grading table
Potassium sulfate powder matched ,+100 purpose potassium sulfate powder account for whole mixtures mass percent be 51%, 100-
The mass percent that 160 purpose potassium sulfate powder account for whole mixtures is that 24%, 160-200 purpose potassium sulfate powder account for entirely
The mass percent of portion's mixture is that account for the mass percent of whole mixtures be 10% to 15%, -200 purpose potassium sulfate powder,
The water that mass percent is 1.2% is added in mixing for each grain purpose potassium sulfate powder, enters extruder after mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579556.9A CN108715558A (en) | 2018-06-07 | 2018-06-07 | A kind of method that potassium sulfate ball-type is granulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579556.9A CN108715558A (en) | 2018-06-07 | 2018-06-07 | A kind of method that potassium sulfate ball-type is granulated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108715558A true CN108715558A (en) | 2018-10-30 |
Family
ID=63911925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579556.9A Pending CN108715558A (en) | 2018-06-07 | 2018-06-07 | A kind of method that potassium sulfate ball-type is granulated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108715558A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016120317A1 (en) * | 2015-01-28 | 2016-08-04 | Maschinenfabrik Köppern Gmbh & Co. Kg | Method for conditioning granular fertilizer material |
-
2018
- 2018-06-07 CN CN201810579556.9A patent/CN108715558A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016120317A1 (en) * | 2015-01-28 | 2016-08-04 | Maschinenfabrik Köppern Gmbh & Co. Kg | Method for conditioning granular fertilizer material |
Non-Patent Citations (1)
| Title |
|---|
| 郭翔 等: "提高颗粒硫酸钾强度的试验研究", 《化肥工业》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181030 |