CN102671742A - Process for grinding ferrous sulfate monohydrate - Google Patents
Process for grinding ferrous sulfate monohydrate Download PDFInfo
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- CN102671742A CN102671742A CN2012101794818A CN201210179481A CN102671742A CN 102671742 A CN102671742 A CN 102671742A CN 2012101794818 A CN2012101794818 A CN 2012101794818A CN 201210179481 A CN201210179481 A CN 201210179481A CN 102671742 A CN102671742 A CN 102671742A
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- Prior art keywords
- ferrous sulfate
- sulfate monohydrate
- grinding
- iron oxide
- sulphur
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Abstract
The invention relates to a process for grinding ferrous sulfate monohydrate. According to the process, a solution of ferrous sulfate monohydrate is subjected to grinding and ultrafine treatment by using sulfur as a grinding aid to form superfine powder of ferrous sulfate monohydrate, and a necessary condition is provided for preparing red iron oxide products with high pigment performance by the thermal decomposition of the ferrous sulfate monohydrate. The process is simple, convenient to operate, low in energy consumption and high in grinding efficiency, and product granularity is small; and by grinding, the granularity of the ferrous sulfate monohydrate is less than 2 micrometers, the necessary condition for preparing the superfine iron oxide powder materials by roasting the ferrous sulfate monohydrate in a furnace is provided, which is highly significant for preparing the red iron oxide products with high pigment performance. The process can be applied to mass production.
Description
Technical field
The invention discloses a kind of grinding technics of ferrous sulfate monohydrate; Belong to the superfine powdery material preparing technical field
Technical background
Adopt ferrous sulfate monohydrate to go into the stove roasting and prepare the iron oxide red product; The pigment performance of iron oxide red product is relevant with the particle diameter of the ferrous sulfate monohydrate crystal of going into the stokehold; The ferrous sulfate monohydrate crystal particle diameter of going into the stokehold is more little; The pigment performance of the iron oxide red for preparing is also just good more, how the ferrous sulfate monohydrate ultra fine is become important problems.
Solid material in the process of grinding, be ground to the certain particle distribution after, tendency that particulate is assembled in process of lapping is strengthened, and continues to grind again, particle diameter does not have obvious variation, can consume a large amount of grinding power consumptions on the contrary.Prior art adopts air-flowing type to pulverize ferrous sulfate monohydrate usually or ball mill is pulverized, and size distribution generally can be higher than 5 microns, and will consume lot of energy.
Summary of the invention
The grinding technics that the objective of the invention is to overcome the deficiency of prior art and the ferrous sulfate monohydrate that a kind of technology is simple, easy to operate, energy consumption is low, grinding efficiency is high, the product granularity is little is provided.
The grinding technics of a kind of ferrous sulfate monohydrate of the present invention is to adopt following proposal to realize: ferrous sulfate crystal and simple substance sulphur are mixed the back ball milling, obtain the ferrous sulfate monohydrate powder; The consumption of sulphur is 0.2-0.4 a times of ferrous sulfate monohydrate quality; Ball milling obtains the ferrous sulfate monohydrate powder of size distribution at the 0.5-2.0 micron; The electric quantity consumption that grinds material per ton is no more than 100 kilowatts.Adopt classical ball-grinding machine, operate, through controlling the product fineness after abrasive can be controlled grinding in the grinding in ball grinder time according to classical ball-grinding machine.
Technical data of the present invention is confirmed:
1, the batching of ferrous sulfate monohydrate and sulphur;
Ferrous sulfate monohydrate and Cosan or particle are dropped into grinder through charger metering back, the consumption of sulphur be the ferrous sulfate monohydrate quality 0.2-0.4 doubly
2, milled processed
The compound of ferrous sulfate monohydrate and sulphur is added the ball mill grinding processing, require the granularity of ferrous sulfate monohydrate to be lower than 2.0 microns after the grinding, grind material power consumption per ton and be no more than 100 kilowatts, grinding temperature is no more than 80 ℃.The operating parameter that other milling parameters provides according to ball-grinding machine manufacturer.
The superiority of the present invention's technology
The present invention adopts the technology of sulphur and ferrous sulfate monohydrate mixing and ball milling, and the particle diameter of ferrous sulfate monohydrate is ground to below 2 microns, obtains ultra-fine ferrous sulfate monohydrate powder,
Know-why
Adopting ferrous sulfate monohydrate and sulphur to prepare in the process of iron oxide red for the reducing agent roasting; Need a certain amount of elemental sulfur; The sulphur of needs being participated in roasting adds ferrous sulfate monohydrate, and mixed grinding, trickle drusen can be interrupted, stop the interparticle direct contact of ferrous sulfate monohydrate; Reduce the tendency that is combined into macroparticle once more of trickle ferrous sulfate monohydrate particle, form thinner ferrous sulfate monohydrate particle.
What grind back formation is a plurality of trickle ferrous sulfate monohydrate particles and the aggregate of simple substance sulphur granule assembly; After the powder stuff and other stuff of this reunion adds fluidizing reactor; Along with the fast ripe burning of elemental sulfur, aggregate becomes a plurality of independently ferrous sulfate monohydrate fine particles, and decomposes fast; Single trickle ferrous sulfate monohydrate particle has and resolves into a plurality of ferric oxide ultra-fine particles, makes the pigment performance of the iron oxide red product that forms behind the secondary clacining obviously improve.
Significance of the present invention
Technology of the present invention is simple, easy to operate, energy consumption is low, grinding efficiency is high, the product granularity is little; The granularity of ferrous sulfate monohydrate is ground to below 2 microns; Obtain ultra-fine ferric oxide powder material necessary condition is provided for adopting ferrous sulfate monohydrate to go into the stove roasting, significance is arranged preparing high performance ferric oxide red colorant product.Be suitable for large-scale production.
The specific embodiment
Embodiment one
This embodiment is that example describes to handle 20,000 tons of ferrous sulfate monohydrates of bullion every year.
Annual production practices were calculated by 8000 hours, and the ferrous sulfate monohydrate of per hour handling is 2.5 tons/hour, and the consumption of design Cosan is 0.51 ten thousand ton/year, and amounting to per hour is 0.637 ton/hour.
A water that comes from ferrous sulfate monohydrate accumulator tank and sulphur storagetank respectively is ferrous to be crossed the charger metering, adds ball mill grinding continuously with sulphur.
Ball mill is the circular cone energy-saving ball mill that adopts the continous way of Shanghai Yi Sheng mining machinery Co., Ltd production.The grinding power of motor of ball mill is 245 kilowatts; Model is
2400 * 3000; The cylindrical shell revolution is 21r/min; Ball load is 23 tons, and disposal ability is 3.5 tons/hour; The size distribution of the ferrous sulfate monohydrate that comes out from ball milling is at the 0.5-1.5 micron.
Embodiment two
This embodiment is that example describes to handle 40,000 tons of ferrous sulfate monohydrates of bullion every year.
Annual production practices were calculated by 8000 hours, and the ferrous sulfate monohydrate of per hour handling is 5.0 tons/hour, and the consumption of design Cosan is 1.2 ten thousand tons/year, and amounting to per hour is 1.5 tons/hour.
A water that comes from ferrous sulfate monohydrate accumulator tank and sulphur storagetank respectively is ferrous to be crossed the charger metering, adds ball mill grinding continuously with sulphur.
Ball mill is the circular cone energy-saving ball mill that adopts the continous way of Shanghai Yi Sheng mining machinery Co., Ltd production.The grinding power of motor of ball mill is 400 kilowatts; Model is 20.7r/min for
cylindrical shell revolution; Ball load is 40 tons, and disposal ability is 7.0 tons/hour; The size distribution of the ferrous sulfate monohydrate that comes out from ball milling is at the 0.8-2.0 micron.
Embodiment three
This embodiment is that example describes to handle 40,000 tons of ferrous sulfate monohydrates of bullion every year.
Annual production practices were calculated by 8000 hours, and the ferrous sulfate monohydrate of per hour handling is 5.0 tons/hour, and the consumption of design Cosan is 2.0 ten thousand tons/year, and amounting to per hour is 2.5 tons/hour.
A water that comes from ferrous sulfate monohydrate accumulator tank and sulphur storagetank respectively is ferrous to be crossed the charger metering, adds ball mill grinding continuously with sulphur.
Ball mill is the circular cone energy-saving ball mill that adopts the continous way of Shanghai Yi Sheng mining machinery Co., Ltd production.The grinding power of motor of ball mill is 400 kilowatts; Model is
2700 * 3600; The cylindrical shell revolution is 20.7r/min; Ball load is 40 tons, and disposal ability is 7.0 tons/hour; The size distribution of the ferrous sulfate monohydrate that comes out from ball milling is at the 0.5-1.5 micron.
Claims (1)
1. the grinding technics of a ferrous sulfate monohydrate is characterized in that: ferrous sulfate crystal and simple substance sulphur are mixed the back ball milling, obtain the ferrous sulfate monohydrate powder; The consumption of sulphur is 0.2-0.4 a times of ferrous sulfate monohydrate quality; Ball milling obtains the ferrous sulfate monohydrate powder of size distribution at the 0.5-2.0 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101794818A CN102671742A (en) | 2012-06-01 | 2012-06-01 | Process for grinding ferrous sulfate monohydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101794818A CN102671742A (en) | 2012-06-01 | 2012-06-01 | Process for grinding ferrous sulfate monohydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102671742A true CN102671742A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101794818A Pending CN102671742A (en) | 2012-06-01 | 2012-06-01 | Process for grinding ferrous sulfate monohydrate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415037A (en) * | 2022-09-13 | 2022-12-02 | 铜陵翔瑞环保新材料有限公司 | Grinding process of ferrous sulfate monohydrate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187465A (en) * | 1997-01-04 | 1998-07-15 | 攀枝花钢铁（集团）公司钢铁研究院 | Method for producing iron oxide red |
| US20090087374A1 (en) * | 2007-09-28 | 2009-04-02 | Eveready Battery Company, Inc. | Processes for Producing Synthetic Pyrite |
| CN101439880A (en) * | 2008-12-19 | 2009-05-27 | 彭铁战 | Production process for coproduction of iron oxide red and concentrated sulfuric acid |
| CN101913573A (en) * | 2010-08-30 | 2010-12-15 | 攀枝花圣地元科技有限责任公司 | Method for producing sulfuric acid and iron oxide red |
-
2012
- 2012-06-01 CN CN2012101794818A patent/CN102671742A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187465A (en) * | 1997-01-04 | 1998-07-15 | 攀枝花钢铁（集团）公司钢铁研究院 | Method for producing iron oxide red |
| US20090087374A1 (en) * | 2007-09-28 | 2009-04-02 | Eveready Battery Company, Inc. | Processes for Producing Synthetic Pyrite |
| CN101439880A (en) * | 2008-12-19 | 2009-05-27 | 彭铁战 | Production process for coproduction of iron oxide red and concentrated sulfuric acid |
| CN101913573A (en) * | 2010-08-30 | 2010-12-15 | 攀枝花圣地元科技有限责任公司 | Method for producing sulfuric acid and iron oxide red |
Non-Patent Citations (1)
| Title |
|---|
| 张仲伟: "用硫铁矿烧渣制备高纯氧化铁红新工艺的研究", 《武汉理工大学硕士论文》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415037A (en) * | 2022-09-13 | 2022-12-02 | 铜陵翔瑞环保新材料有限公司 | Grinding process of ferrous sulfate monohydrate |
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Application publication date: 20120919 |