CN103964404A - Method for producing powdered rock phosphate balls by using powdered rock phosphate - Google Patents
Method for producing powdered rock phosphate balls by using powdered rock phosphate Download PDFInfo
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- CN103964404A CN103964404A CN201410166984.0A CN201410166984A CN103964404A CN 103964404 A CN103964404 A CN 103964404A CN 201410166984 A CN201410166984 A CN 201410166984A CN 103964404 A CN103964404 A CN 103964404A
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- phosphate
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Abstract
The invention relates to the technical field of mineral processing, in particular to a method for producing powdered rock phosphate balls by using powdered rock phosphate screened out by enterprises or mineral powder left after mine production with low-concentration phosphoric acid. The method comprises the steps of screening, batching, mixing, ball pressing, drying and cooling; in the method, the content of P2O5 in phosphate rock is increased as a phosphate acid and phosphate binder is adopted and the P2O5 in the binder ultimately enters a furnace and participates the phosphorus producing reaction, and the quality of phosphate rock is improved; carbonate impurities in the added phosphoric acid and phosphate rock are subjected to chemical replacement reaction, and mixing is carried out by a double-roll mixer, so that carbon dioxide and organic matters harmful to the electric furnace during production can be fully released; in the production of yellow phosphor, the power consumption of the electric furnace can be reduced by 190 kilowatt hour as long as 1% of CO2 content is reduced, the consumption of coke can be reduced by 29 kilograms, and the production costs of the enterprises can be greatly reduced.
Description
Technical field
The present invention relates to technical field of mineral processing, is that a kind of ground phosphate rock that utilizes enterprise to sieve to get off or mine produce the method that the remaining breeze of concentrate and lower concentration phosphoric acid are produced the phosphorus ore sphere of powder specifically.
Background technology
In order to reduce the production cost of yellow phosphorus, phosphorus production producer phosphorus ore raw material used is taking rich ore as main (P2O5 massfraction ﹥ 28%).Mine is after excessive unauthorized and excessive mining of several years, 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 reaching mid low grade phosphate rock powder into stove requirement because using without pelletizing (piece) agglomerating plant, technology.Have Mineral resources and rely on the enterprise of adopting pin ore deposit, majority is to adopt piece to abandon powder, serious waste of resources.Of fine qualityly be easy to get at raw material, 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 changes the compound of piece and agglomerate into lump ore, sieve by raw ore, fine ore is wherein mixed for producing yellow phosphorus with the lump ore sieving out after adopting novel sintered technology sintering, also can be by the more low-grade fine ore in mine of abandoning and the dry fine ore producing of transport, after upgrading by ore dressing, carry out again sintering, for processing phosphate fertilizer and phosphorus goods.
In prior art:
1, water glass is made 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 having added water glass, give in stove and brought sodium ion, 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 is made the disadvantage of cakingagent: 1. make phosphorus ore grade decline, as raw ore P
2o
5massfraction is 25%, adds 8% clay and makes after ball, 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 will be increased to 1.3～1.5t by original 1t, and the clay in sintered balls is finally discharged with the form of slag, and slag quality will be increased to 1.9～2.0t by original 1t; 3. economic benefit reduces, and calculates power consumption with smelting material amount, the about 1000kw/h/t of calorific loss folding power consumption that clay (slag) is taken out of, and the phosphorus that causes band to lose because of the increase of slag amount also increases, and economic benefit reduces by approximately 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 sintered balls 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 the problem existing for above-mentioned technology, a kind of method of utilizing ground phosphate rock to produce the phosphorus ore sphere of powder is provided, the method is produced the remaining breeze of concentrate as raw materials for production taking ground phosphate rock, the mine of enterprise's screening, solves the problems such as in existing production, raw ore waste is serious, utilization ratio is low.
For achieving the above object, the technical solution used in the present invention is: a kind of method of 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 by producing the remaining breeze of concentrate on the ground phosphate rock of manufacturing enterprise's screening or mine, block mineral aggregate is directly used in phosphorus production, and the powder of screening enters batching step;
Described batching is: prepare burden by 0.5～2 part of 100 parts, ground phosphate rock, 2～8 parts of phosphoric acid and phosphate binder, then stir;
When the present invention stirs, both ground phosphate rock, phosphoric acid and phosphate binder can be mixed, can remove again the carbonic acid gas in carbonate and most of organism in batch mixing;
Described pressure ball is: it is to carry out pressure ball under the pressure of 20～200 tons at pressure that the powder mixing is sent into ball press;
Described oven dry is: after pressure ball molding, send in dryer and dry at 200～500 DEG C.
Further, when described batching, the mass percentage concentration of phosphoric acid is 10～50%.
Further, described phosphate binder is made up of one or both and above combination in trimagnesium phosphate, calcium phosphate and aluminum phosphate.
Further, described batch mixing adopts two roller blenders to carry out batch mixing;
Adopt two rollers further mineral aggregate to be mixed, discharge carbonic acid gas and organism in batch mixing simultaneously.
Further, described dryer is high tower dryer.
Useful technique effect 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, improved P in Rock Phosphate (72Min BPL)
2o
5content, improved the grade of Rock Phosphate (72Min BPL);
(2) in the present invention, the carbonate impurity in phosphoric acid and the phosphorus ore adding carries out chemical replacement reaction, and utilizes two roller blenders to carry out batch mixing, fully discharges electric furnace is produced to harmful CO
2and organism, in phosphorus production, 1% CO in every reduction material
2content, energy consumption of electric furnace can reduce by 190 degree, reduces 29 kilograms of coke consumptions, can greatly reduce the production cost of enterprise;
(3) in the present invention, the phosphoric acid adding is all the waste phosphoric acid producing in phosphorus production process, waste phosphoric acid is used for to the production of the phosphorus ore sphere of powder, has improved the utility value of waste phosphoric acid.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining 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) screening: utilize 2 eye mesh screens to sieve by producing the remaining breeze of concentrate on the ground phosphate rock of manufacturing enterprise's screening or mine, block mineral aggregate is directly used in phosphorus production, and the powder of screening enters batching step;
(2) batching: prepare burden by 0.5 part of 100 parts, ground phosphate rock, 2 parts of phosphoric acid and phosphate binder, 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 stirring is conveyed in two roller blenders and carries out abundant batch mixing, makes the CO in batch mixing
2discharge;
(4) pressure ball: it is to carry out pressure ball under the pressure of 20 tons at pressure that the powder mixing is sent into ball press, the pressure ball not batch mixing of moulding again returns to batch mixing step and again mixes;
(5) dry: after pressure ball molding, send in high tower dryer and dry at 200 DEG C;
(6) cooling 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) screening: utilize 10 eye mesh screens to sieve by producing the remaining breeze of concentrate on the ground phosphate rock of manufacturing enterprise's screening or mine, block mineral aggregate is directly used in phosphorus production, and the powder of screening enters batching step;
(2) batching: prepare burden by 1 part of 100 parts, ground phosphate rock, 5 parts of phosphoric acid and phosphate binder, 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 stirring is conveyed in two roller blenders and carries out abundant batch mixing, makes the CO in batch mixing
2discharge;
(4) pressure ball: it is to carry out pressure ball under the pressure of 100 tons at pressure that the powder mixing is sent into ball press, the pressure ball not batch mixing of moulding again returns to batch mixing step and again mixes;
(5) dry: after pressure ball molding, send in high tower dryer and dry at 400 DEG C;
(6) cooling 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) screening: utilize 15 eye mesh screens to sieve by producing the remaining breeze of concentrate on the ground phosphate rock of manufacturing enterprise's screening or mine, block mineral aggregate is directly used in phosphorus production, and the powder of screening enters batching step;
(2) batching: prepare burden by 2 parts of 100 parts, ground phosphate rock, 8 parts of phosphoric acid and phosphate binders, 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 stirring is conveyed in two roller blenders and carries out abundant batch mixing, makes the CO in batch mixing
2discharge;
(4) pressure ball: it is to carry out pressure ball under the pressure of 200 tons at pressure that the powder mixing is sent into ball press, the pressure ball not batch mixing of moulding again returns to batch mixing step and again mixes;
(5) dry: after pressure ball molding, send in high tower dryer and dry at 500 DEG C;
(6) cooling stand-by.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in 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 by producing the remaining breeze of concentrate on the ground phosphate rock of manufacturing enterprise's screening or mine, block mineral aggregate is directly used in phosphorus production, and the powder of screening enters batching step;
Described batching is: prepare burden by 0.5～2 part of 100 parts, ground phosphate rock, 2～8 parts of phosphoric acid and phosphate binder, then stir;
Described pressure ball is: it is to carry out pressure ball under the pressure of 20～200 tons at pressure that the powder mixing is sent into ball press;
Described oven dry is: after pressure ball molding, send in dryer and dry at 200～500 DEG C.
2. utilize according to claim 1 ground phosphate rock to produce the method for the phosphorus ore sphere of powder, it is characterized in that, when described batching, the mass percentage concentration of phosphoric acid is 10～50%.
3. utilize according to claim 1 ground phosphate rock to produce the method for the phosphorus ore sphere of powder, it is characterized in that, described phosphate binder is made up of one or both and above combination in trimagnesium phosphate, calcium phosphate and aluminum phosphate.
4. utilize according to claim 1 ground phosphate rock to produce the method for the phosphorus ore sphere of powder, it is characterized in that, described batch mixing adopts two roller blenders to carry out batch mixing.
5. utilize according to claim 1 ground phosphate rock to produce the method for the phosphorus ore sphere of powder, it is characterized in that, described dryer is high tower dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN103964404A true CN103964404A (en) | 2014-08-06 |
| CN103964404B CN103964404B (en) | 2016-01-20 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261361A (en) * | 2014-09-11 | 2015-01-07 | 云南红富化肥有限公司 | Washing and direct flotation method of low-grade refractory argillaceous phosphorite |
| 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 |
| CN110483125A (en) * | 2019-08-02 | 2019-11-22 | 史丹利化肥当阳有限公司 | Utilize the method for waste phosphoric acid production S-based compound fertilizer raw material |
| 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 |
| CN111847409A (en) * | 2020-08-04 | 2020-10-30 | 重庆雁川化工科技有限公司 | Method for producing ground phosphate rock balls by utilizing ground phosphate rock |
| CN112408343A (en) * | 2021-01-07 | 2021-02-26 | 云南省宣威东升化工有限公司 | Processing system of low-grade ground phosphate rock pelletizing |
| CN112591723A (en) * | 2021-01-07 | 2021-04-02 | 云南省宣威东升化工有限公司 | Method for producing powdered rock phosphate pellets by using low-grade powdered rock phosphate |
| 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)
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| 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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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261361A (en) * | 2014-09-11 | 2015-01-07 | 云南红富化肥有限公司 | Washing and direct flotation method of low-grade refractory argillaceous phosphorite |
| 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 |
| CN110483125A (en) * | 2019-08-02 | 2019-11-22 | 史丹利化肥当阳有限公司 | Utilize the method for waste phosphoric acid production S-based compound fertilizer raw material |
| 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 |
| CN111847409A (en) * | 2020-08-04 | 2020-10-30 | 重庆雁川化工科技有限公司 | Method for producing ground phosphate rock balls by utilizing ground phosphate rock |
| 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 |
| CN112408343A (en) * | 2021-01-07 | 2021-02-26 | 云南省宣威东升化工有限公司 | Processing system of low-grade ground phosphate rock pelletizing |
| CN112591723A (en) * | 2021-01-07 | 2021-04-02 | 云南省宣威东升化工有限公司 | Method for producing powdered rock phosphate pellets by using low-grade powdered rock phosphate |
| 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 |
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|---|---|
| CN103964404B (en) | 2016-01-20 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
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 |
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