CN103964404B - Ground phosphate rock is utilized to produce the method for the phosphorus ore sphere of powder - Google Patents
Ground phosphate rock is utilized to produce the method for the phosphorus ore sphere of powder Download PDFInfo
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- CN103964404B CN103964404B CN201410166984.0A CN201410166984A CN103964404B CN 103964404 B CN103964404 B CN 103964404B CN 201410166984 A CN201410166984 A CN 201410166984A CN 103964404 B CN103964404 B CN 103964404B
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Abstract
The present invention relates to technical field of mineral processing, the breeze that the ground phosphate rock utilizing enterprise to sieve specifically or mining production concentrate are left and lower concentration phosphoric acid, to produce a method for the phosphorus ore sphere of powder, comprise screening, batching, batch mixing, pressure ball, oven dry and cooling step; In the present invention, owing to adopting phosphoric acid and phosphate binder, the P in phosphoric acid and phosphate binder
2o
5finally enter in stove and participate in phosphorus reaction processed, improve P in Rock Phosphate (72Min BPL)
2o
5content, improve the grade of Rock Phosphate (72Min BPL); Carbonate impurities in the phosphoric acid added and phosphorus ore carries out chemical replacement reaction, and utilizes two roller blender to carry out batch mixing, and fully release produces harmful CO to electric furnace
2and organism, in phosphorus production, often reduce the CO of 1%
2, energy consumption of electric furnace can reduce by 190 degree, reduces coke consumption 29 kilograms, greatly can reduce the production cost of enterprise.
Description
Technical field
The present invention relates to technical field of mineral processing, specifically a kind of utilize enterprise to sieve ground phosphate rock or the breeze that is left of mining production concentrate and lower concentration phosphoric acid to produce the method for the phosphorus ore sphere of powder.
Background technology
In order to reduce the production cost of yellow phosphorus, phosphorus production producer phosphorus ore raw material used is (P2O5 massfraction ﹥ 28%) based on rich ore.Mine is after several years excessive unauthorized and excessive mining, and there is not much left for rich ore, and the destruction Of resources is serious.Most phosphorus production enterprise of China only uses lump ore, to the mid low grade phosphate rock powder that can reach into stove requirement because of without pelletizing (block) agglomerating plant, technology and cannot using.Have Mineral resources and rely on the enterprise of adopting pin ore deposit, majority adopts block to abandon powder, serious waste of resources.Of fine qualityly to be easy to get at raw material, the cheap past, enterprise still can survival and development with the crude management of low technical, highly energy-consuming, high waste; , dilution increasingly exhausted at phosphate rock resource, today that ore deposit price rises steadily and future, application sintering technology is answered by the enterprise that output phosphor is larger, phosphorus production lump ore changes the compound of block and agglomerate into, sieve by raw ore, be mixed for producing yellow phosphorus with the lump ore sieved out after fine ore wherein adopts novel sintered technology to sinter, the fine ore that also the more low-grade fine ore in mine abandoned and transport drying can be produced, sinter again after being upgrade by ore dressing, for processing phosphate fertilizer and phosphorus goods.
In prior art:
1, water glass makes the balling-up technology of tackiness agent
This technology selects water glass to make tackiness agent, addition 10 ~ 15%, the ore deposit ball thermostability of this technology balling-up and rheobase instinct meet the requirement of phosphorus production enterprise, but owing to the addition of water glass, sodium ion is brought in stove, the activity of sodium ion, electroconductibility make the chemical reaction in stove more complicated, affect the manipulation of electric furnace.Meanwhile, water glass can not reduce the adverse factor of phosphorus production, as carbonate and organism.
2, Wood sinters playing skill art into
(1) clay makes the disadvantage of cakingagent: 1. make phosphorus ore grade decline, as raw ore P
2o
5massfraction is 25%, after the clay adding 8% makes ball, then and P in dry bulb
2o
5massfraction drops to 23%; 2. slag amount increases, and enters P in stove phosphorus ore to produce yellow phosphorus
2o
5massfraction is 25%, adds the sintered balls of clay if use instead, and phosphorus ore raw materials quality is increased to 1.3 ~ 1.5t by by original 1t, and the clay in sintered balls is finally discharged with the form of slag, and slag quality is increased to 1.9 ~ 2.0t by by original 1t; 3. economic benefit reduces, and calculates power consumption with smelting material amount, and the calorific loss folding power consumption that clay (slag) is taken out of is about 1000kw/h/t, and the increase because of slag amount causes being with the phosphorus lost also to increase, and economic benefit reduces by about 500 yuan/t;
(2) pan-type pelletizer granulation production efficiency is low, and equipment failure is many, and the on-the-spot dust content of granulation is high, and operating environment is poor;
(3) disadvantage of belt type roasting machine sintering phosphorus ore: the intensity of phosphorus ore mine ball is directly proportional to sintering temperature, because the material of Dwight-Lloyd sintering machine (steel) thermal stability is not high, so the intensity of sintered balls is often because sintering temperature is not high and influenced; In addition, Dwight-Lloyd sintering machine sintering thermosteresis is large, makes yellow phosphoric tail gas consumption (150Nm partially
3/ t ore deposit), and plant investment is also higher.
Summary of the invention
The object of the invention is for above-mentioned technology Problems existing, a kind of method utilizing ground phosphate rock to produce the phosphorus ore sphere of powder is provided, the remaining breeze of the method ground phosphate rock, the mining production concentrate that sieve with enterprise is raw materials for production, solves the problems such as raw ore waste is serious, utilization ratio is low in existing production.
For achieving the above object, the technical solution used in the present invention is: a kind of method utilizing ground phosphate rock to produce the phosphorus ore sphere of powder, comprises screening, batching, batch mixing, pressure ball, oven dry and cooling step;
Described screening is: utilize 2 ~ 15 eye mesh screens to sieve the breeze that the ground phosphate rock of manufacturing enterprise's screening or mine produce concentrate remaining, block mineral aggregate is directly used in phosphorus production, and the powder of screening then enters batching step;
Described batching is: prepare burden by 100 parts, ground phosphate rock, phosphoric acid 2 ~ 8 parts and phosphate binder 0.5 ~ 2 part, then stir;
When the present invention stirs, both ground phosphate rock, phosphoric acid and phosphate binder can be mixed, the carbonic acid gas in batch mixing in carbonate and most of organism can be removed again;
Described pressure ball is: the powder mixed being sent into ball press is carry out pressure ball under the pressure of 20 ~ 200 tons at pressure;
Described oven dry is: send into after pressure ball molding in dryer and dry at 200 ~ 500 DEG C.
Further, during described batching, the mass percentage concentration of phosphoric acid is 10 ~ 50%.
Further, described phosphate binder is made up of one or both in trimagnesium phosphate, calcium phosphate and aluminum phosphate and above combination.
Further, described batch mixing adopts two roller blender to carry out batch mixing;
Adopt two roller to be mixed by mineral aggregate further, discharge the carbonic acid gas in batch mixing and organism simultaneously.
Further, described dryer is high tower dryer.
Advantageous Effects of the present invention is:
(1) in the present invention, owing to adopting phosphoric acid and phosphate binder, the P in phosphoric acid and phosphate binder
2o
5finally enter in stove and participate in phosphorus reaction processed, improve P in Rock Phosphate (72Min BPL)
2o
5content, improve the grade of Rock Phosphate (72Min BPL);
(2) in the present invention, the carbonate impurities in the phosphoric acid added and phosphorus ore carries out chemical replacement reaction, and utilizes two roller blender to carry out batch mixing, and fully release produces harmful CO to electric furnace
2and organism, in phosphorus production, often reduce the CO of in material 1%
2content, energy consumption of electric furnace can reduce by 190 degree, reduces coke consumption 29 kilograms, greatly can reduce the production cost of enterprise;
(3), in the present invention, the phosphoric acid added is all the waste phosphoric acid produced in phosphorus production process, waste phosphoric acid is used for the production of the phosphorus ore sphere of powder, improves the utility value of waste phosphoric acid.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention 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 some embodiments of the present invention, 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 process flow sheet of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Utilize ground phosphate rock to produce a method for the phosphorus ore sphere of powder, comprise the steps (as shown in Figure 1):
(1) sieve: utilize 2 eye mesh screens to sieve the breeze that the ground phosphate rock of manufacturing enterprise's screening or mine produce concentrate remaining, block mineral aggregate is directly used in phosphorus production, and the powder of screening then enters batching step;
(2) prepare burden: prepare burden by 100 parts, ground phosphate rock, phosphoric acid 2 parts and phosphate binder 0.5 part, then drop in agitator and stir, the mass percentage concentration of phosphoric acid is 10%, and phosphate binder is trimagnesium phosphate;
(3) batch mixing: the batch mixing stirred is conveyed in two roller blender and carries out abundant batch mixing, makes the CO in batch mixing
2release;
(4) pressure ball: the powder mixed being sent into ball press is carry out pressure ball under the pressure of 20 tons at pressure, the not shaping batch mixing of pressure ball again returns batch mixing step and again mixes;
(5) dry: send into after pressure ball molding in high tower dryer and dry at 200 DEG C;
(6) cool stand-by.
Embodiment 2
Utilize ground phosphate rock to produce a method for the phosphorus ore sphere of powder, comprise the steps (as shown in Figure 1):
(1) sieve: utilize 10 eye mesh screens to sieve the breeze that the ground phosphate rock of manufacturing enterprise's screening or mine produce concentrate remaining, block mineral aggregate is directly used in phosphorus production, and the powder of screening then enters batching step;
(2) prepare burden: prepare burden by 100 parts, ground phosphate rock, phosphoric acid 5 parts and phosphate binder 1 part, then drop in agitator and stir, the mass percentage concentration of phosphoric acid is 30%, and phosphate binder is trimagnesium phosphate and calcium phosphate;
(3) batch mixing: the batch mixing stirred is conveyed in two roller blender and carries out abundant batch mixing, makes the CO in batch mixing
2release;
(4) pressure ball: the powder mixed being sent into ball press is carry out pressure ball under the pressure of 100 tons at pressure, the not shaping batch mixing of pressure ball again returns batch mixing step and again mixes;
(5) dry: send into after pressure ball molding in high tower dryer and dry at 400 DEG C;
(6) cool stand-by.
Embodiment 3
Utilize ground phosphate rock to produce a method for the phosphorus ore sphere of powder, comprise the steps (as shown in Figure 1):
(1) sieve: utilize 15 eye mesh screens to sieve the breeze that the ground phosphate rock of manufacturing enterprise's screening or mine produce concentrate remaining, block mineral aggregate is directly used in phosphorus production, and the powder of screening then enters batching step;
(2) prepare burden: prepare burden by 100 parts, ground phosphate rock, phosphoric acid 8 parts and phosphate binder 2 parts, then drop in agitator and stir, the mass percentage concentration of phosphoric acid is 50%, and phosphate binder is trimagnesium phosphate and aluminum phosphate;
(3) batch mixing: the batch mixing stirred is conveyed in two roller blender and carries out abundant batch mixing, makes the CO in batch mixing
2release;
(4) pressure ball: the powder mixed being sent into ball press is carry out pressure ball under the pressure of 200 tons at pressure, the not shaping batch mixing of pressure ball again returns batch mixing step and again mixes;
(5) dry: send into after pressure ball molding in high tower dryer and dry at 500 DEG C;
(6) cool stand-by.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. utilize ground phosphate rock to produce a method for the phosphorus ore sphere of powder, it is characterized in that, comprise screening, batching, batch mixing, pressure ball, oven dry and cooling step;
Described screening is: utilize 2 ~ 15 eye mesh screens to sieve the breeze that the ground phosphate rock of manufacturing enterprise's screening or mine produce concentrate remaining, block mineral aggregate is directly used in phosphorus production, and the powder of screening then enters batching step;
Described batching is: prepare burden by 100 parts, ground phosphate rock, phosphoric acid 2 ~ 8 parts and phosphate binder 0.5 ~ 2 part, then stir;
Described pressure ball is: the powder mixed being sent into ball press is carry out pressure ball under the pressure of 20 ~ 200 tons at pressure;
Described oven dry is: send into after pressure ball molding in dryer and dry at 200 ~ 500 DEG C.
2. utilize ground phosphate rock to produce the method for the phosphorus ore sphere of powder according to claim 1, it is characterized in that, during described batching, the mass percentage concentration of phosphoric acid is 10 ~ 50%.
3. utilize ground phosphate rock to produce the method for the phosphorus ore sphere of powder according to claim 1, it is characterized in that, described phosphate binder is made up of one or both in trimagnesium phosphate, calcium phosphate and aluminum phosphate and above combination.
4. utilize ground phosphate rock to produce the method for the phosphorus ore sphere of powder according to claim 1, it is characterized in that, described batch mixing adopts two roller blender to carry out batch mixing.
5. utilize ground phosphate rock to produce the method for the phosphorus ore sphere of powder according to claim 1, it is characterized in that, described dryer is high tower dryer.
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| CN201410166984.0A CN103964404B (en) | 2014-04-24 | 2014-04-24 | Ground phosphate rock is utilized to produce the method for the phosphorus ore sphere of powder |
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| CN201410166984.0A CN103964404B (en) | 2014-04-24 | 2014-04-24 | Ground phosphate rock is utilized to produce the method for the phosphorus ore sphere of powder |
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| CN103964404B true CN103964404B (en) | 2016-01-20 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261361B (en) * | 2014-09-11 | 2016-03-23 | 云南红富化肥有限公司 | A kind of low-grade refractory selects the washup direct flotation method of shale phosphorus ore |
| CN105217587A (en) * | 2015-10-22 | 2016-01-06 | 云南天安化工有限公司 | Stone flour type ground phosphate rock binding agent |
| CN106629642A (en) * | 2016-09-26 | 2017-05-10 | 四川省民众日化有限公司 | Phosphate rock powder wheel rolling double-roller integrated pelleting production line and production method thereof |
| CN110483125B (en) * | 2019-08-02 | 2022-03-04 | 史丹利化肥当阳有限公司 | Method for producing raw material for sulfur-based compound fertilizer by using waste phosphoric acid |
| CN111186825A (en) * | 2020-01-10 | 2020-05-22 | 郑州大学 | Method for preparing sintered pellets from low-grade phosphate ore and phosphorus chemical industry waste |
| CN111847409B (en) * | 2020-08-04 | 2023-09-12 | 重庆雁川化工科技有限公司 | Method for producing phosphorite powder ball by utilizing phosphorite powder |
| CN112591723B (en) * | 2021-01-07 | 2023-05-30 | 云南省宣威东升化工有限公司 | Method for producing phosphate rock powder pellets by using low-grade phosphate rock powder |
| CN112408343B (en) * | 2021-01-07 | 2024-04-19 | 云南省宣威东升化工有限公司 | Processing system of low-grade phosphate rock powder pellet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815689A (en) * | 2007-09-10 | 2010-08-25 | 万肯高级材料有限公司 | Composition based on phosphatic raw materials and method for producing the same |
| CN101973536A (en) * | 2010-09-17 | 2011-02-16 | 张兴华 | Preparation method for pelletizing and producing yellow phosphorus by phosphorus ore concentrate |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
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2014
- 2014-04-24 CN CN201410166984.0A patent/CN103964404B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815689A (en) * | 2007-09-10 | 2010-08-25 | 万肯高级材料有限公司 | Composition based on phosphatic raw materials and method for producing the same |
| CN101973536A (en) * | 2010-09-17 | 2011-02-16 | 张兴华 | Preparation method for pelletizing and producing yellow phosphorus by phosphorus ore concentrate |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
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Inventor after: Zhang Yihui Inventor after: Zhang Guoqiang Inventor after: Xiang Deying Inventor before: Zhang Yihui Inventor before: Xiang Deying |
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Effective date of registration: 20190820 Address after: 550509 Luoweitang Park, Daoping Town, Fuzhuan City, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province Patentee after: Guizhou Fuquan East Sichuan Chemical Co.,Ltd. Address before: 550699 Huichang Highway, Heping Town, Huishui County, Buyi and Miao Autonomous Prefecture, Guizhou Province, 3 km away Patentee before: GUIZHOU HUISHUI CHUANDONG CHEMICAL CO.,LTD. |
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Application publication date: 20140806 Assignee: Yunnan Fushi Technology Co.,Ltd. Assignor: Guizhou Fuquan East Sichuan Chemical Co.,Ltd. Contract record no.: X2022530000006 Denomination of invention: Method for producing phosphate rock powder ball using phosphate rock powder Granted publication date: 20160120 License type: Common License Record date: 20220805 |