CN102701164A - Processing method for preparing phosphate rock powder into pellet yellow phosphorus charge - Google Patents
Processing method for preparing phosphate rock powder into pellet yellow phosphorus charge Download PDFInfo
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- CN102701164A CN102701164A CN2012100001679A CN201210000167A CN102701164A CN 102701164 A CN102701164 A CN 102701164A CN 2012100001679 A CN2012100001679 A CN 2012100001679A CN 201210000167 A CN201210000167 A CN 201210000167A CN 102701164 A CN102701164 A CN 102701164A
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Abstract
The invention provides a processing method for preparing phosphate rock powder into pellet yellow phosphorus charge. For producing 1000kg of yellow phosphorus pellet charge, 1000kg of the phosphate rock powder, 100kg of humic acid and 20kg of sodium hydroxide are adopted. The preparation method comprises the following steps of: adding the phosphate rock powder (100 meshes) into a binding agent combined by the humic acid and the sodium hydroxide, uniformly stirring, pressing into pellets by a ball press, rolling by a disc pelletizer for ejection, entering an air heating furnace for preliminary drying, entering a vertical kiln for through drying, and then further entering a rotary kiln for performing high-temperature calcination treatment at the temperature of 1100 DEG C-1200 DEG C so as to obtain a yellow phosphorus charge finished product. According to the processing method provided by the invention, the phosphate rock powder is utilized, the 100-mesh phosphate rock powder is finely ground by a ball mill and pressed into the pellet-like yellow phosphorus charge finished product via the binding agent; and compared with lump ore charge, the removal rate of harmful carbonate impurities can be up to 95%, the power consumption per ton of yellow phosphorus is reduced by 35%, the discharge of pollutants is reduced, and the production cost is lowered. The processing method is the excellent processing method for producing yellow phosphorus by utilizing the phosphate rock powder in China at present.
Description
Technical field
The present invention relates to a kind of raw material processing and treating method of yellow phosphorus electric furnace, a kind of specifically ground phosphate rock is processed the working method of pelletizing yellow phosphorus furnace charge.
Background technology
At present the raw material of system phosphorus electric furnace all is to be raw materials for production with the raw ore lump ore, according to the characteristics of China's phosphorus ore, can only account for 1/50th of phosphorus ore total amount as the lump ore of producing yellow phosphorus; Resource is fewer and feweri, and in the engineering of the broken processing of lump ore, can produce a large amount of fine ores again can't utilize again; Cause the wasting of resources, also have the carbonate impurity of going into the stove substitution at lump ore stone, in the process of heating, resolve into carbonic acid gas; The reduction of carbonic acid gas along with the phosphorus ore of the rising gradually explosion of temperature increases dust, brings difficulty for the normal operation of electric furnace and the refinement treatment of thick phosphorus; Because dust increases, electrode current is prone to fluctuate, easy knot arch in the stove; The material that collapses is frequent, and molten bath resistance, electric current are wayward, and furnace pressure increases severely; Cause electrode flame when serious, burn out facilities such as electrode suspension, the normal running maintenance of returning the boiler face workman brings potential safety hazard.The reduction of carbonic acid gas also can increase power consumption, increases consumption of electrode, the increase of coke consumption and mud phosphorus amount.For highly energy-consuming, the high pollution of controlling present production yellow phosphorus, make favourable phosphate rock resource comprehensive utilization, reduce production costs, the raw material that needs to be resolved hurrily is gone into the processing treatment of stokehold.
Summary of the invention
The objective of the invention is to solve the technical deficiency of above-mentioned existence; Provide a kind of ground phosphate rock to process the working method of pelletizing yellow phosphorus furnace charge; After utilizing the powder phosphorus ore to be processed into ground phosphate rock, be made into pelletizing of uniform size, behind drying and calcining, process yellow phosphorus furnace charge finished product through sticker; Have and economize on resources and comprehensive utilization of resources the characteristics that can improve output phosphor, cut down the consumption of energy, reduce pollution, reduce production costs.
The present invention includes the raw material humic acids and the sodium hydroxide of ground phosphate rock and the required usefulness of sticker; The technical scheme that is adopted is: the raw material weight component required with every production 1000Kg yellow phosphorus pelletizing furnace charge finished product is following: ground phosphate rock 1000Kg, humic acids 100Kg, sodium hydroxide, 20Kg; The preparation method is following: step 1: the clear water that adds 4 times of weight after humic acids and the sodium hydroxide mixing is stirred heat to 95 ℃～100 ℃, it is for use to process sticker; Step 2: ground phosphate rock is put into biaxial rneader, add above-mentioned sticker and stir; Step 3: the above-mentioned material that stirs is delivered to the pressure ball nodulizer through worm conveyor be processed into pelletizing of uniform size; Step 4: the pelletizing that processes is sent into balling disk (-sc) carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, tentatively oven dry under 50 ℃～60 ℃ condition; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree continuation oven dry in the vertical furnace; Step 7: the pelletizing of oven dry is calcined under 1000 ℃～1200 ℃ high temperature in conveyor is sent into rotary kiln; Step 8: after the pelletizing after the calcining, naturally cooling cause 60 ℃～80 ℃, get into feed bin, become qualified yellow phosphorus furnace charge through bucket elevator.
In the technique scheme: the content of the Vanadium Pentoxide in FLAKES in the ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter described in the step 4 is 30mm.
Water ratio after the preliminary oven dry in preparing method's step 5 is 4～6%.
Water ratio after the continuation oven dry in preparing method's step 6 is 0.4～0.6%.
Technique scheme proposed by the invention utilizes the powder phosphorus ore to produce ground phosphate rock, presses to pelletizing of the same size through sticker through ball press; The harmful carbonate impurity in the decomposing phosphate rock stone fully after oven dry calcining has good intensity, in sending into Electric Cooker phosphorus process; Because the decomposition of carbonate impurity; Can reduce greatly that power consumption, furnace gas pressure-stabilisation, phosphorus mud are few, furnace charge is difficult for the crust and the material that collapses, but boiler face workman normal running maintenance there is not potential safety hazard.Go into stove with traditional lump ore and compare, improve the phosphorus pentoxide content 50% of ground phosphate rock, calculate by ten thousand tons of yellow phosphorus electric furnaces; Under the situation that does not increase power consumption, can increase by 5000 tons of output, power consumption yellow phosphorus per ton descends 35%; Phosphorus production cost per ton drops to 11000 yuan by original 15000 yuan, through the present technique scheme, the electrode of electric furnace use consume little; Not fragile, the fusion time lacked after furnace charge was gone into stove, simultaneously; Also having made full use of depleted fine ore resource, had that output height, cost are low, a unusual effect of less energy consumption and minimizing disposal of pollutants, is the modern technique of protection China's phosphate rock resource and phosphorous chemical industry Sustainable development.
Embodiment
Embodiment 1: with furnace charge cost 1000kg, get the raw materials ready as follows: ground phosphate rock 1000kg, humic acids 100kg, sodium hydroxide 20kg.
The preparation method is following:
Step 1: humic acids and sodium hydroxide are mixed clear water that the back adds 4 times of weight stir and heat to 95 ℃, it is for use to process sticker; Step 2: ground phosphate rock is put into biaxial rneader, add above-mentioned sticker and stir; Step 3: the above-mentioned material that stirs is delivered to the pressure ball nodulizer through worm conveyor be processed into pelletizing of uniform size; Step 4: the pelletizing that processes is sent into balling disk (-sc) carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, tentatively oven dry under 50 ℃ condition; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree continuation oven dry in the vertical furnace; Step 7: the pelletizing of oven dry is calcined under 1000 ℃ of high temperature in conveyor is sent into rotary kiln; Step 8: after the pelletizing after the calcining, naturally cooling cause 60 ℃～80 ℃, get into feed bin, become qualified yellow phosphorus furnace charge through bucket elevator.
The content of the Vanadium Pentoxide in FLAKES in the ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in the said step 4 is 30mm.
Water ratio after the preliminary oven dry in preparing method's step 5 is 4%.
Water ratio after the continuation oven dry in preparing method's step 6 is 0.4%.
Embodiment 2: with furnace charge cost 2000kg, get the raw materials ready as follows: ground phosphate rock 2000kg, humic acids 200kg, sodium hydroxide 40kg.
The preparation method is following:
Step 1: humic acids and sodium hydroxide are mixed clear water that the back adds 4 times of weight stir and heat to 100 ℃, it is for use to process sticker; Step 2: ground phosphate rock is put into biaxial rneader, add above-mentioned sticker and stir; Step 3: the above-mentioned material that stirs is delivered to the pressure ball nodulizer through worm conveyor be processed into pelletizing of uniform size; Step 4: the pelletizing that processes is sent into balling disk (-sc) carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, tentatively oven dry under 55 ℃ condition; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree continuation oven dry in the vertical furnace; Step 7: the pelletizing of oven dry is calcined under 1100 ℃ of high temperature in conveyor is sent into rotary kiln; Step 8: after the pelletizing after the calcining, naturally cooling cause 60 ℃～80 ℃, get into feed bin, become qualified yellow phosphorus furnace charge through bucket elevator.
The content of the Vanadium Pentoxide in FLAKES in the ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in the said step 4 is 30mm.
Water ratio after the preliminary oven dry in preparing method's step 5 is 5%.
Water ratio after the continuation oven dry in preparing method's step 6 is 0.5%.
Embodiment 3: with furnace charge cost 3000kg, get the raw materials ready as follows: ground phosphate rock 3000kg, humic acids 300kg, sodium hydroxide 60kg.
The preparation method is following:
Step 1: humic acids and sodium hydroxide are mixed clear water that the back adds 4 times of weight stir and heat to 98 ℃, it is for use to process sticker; Step 2: ground phosphate rock is put into biaxial rneader, add above-mentioned sticker and stir; Step 3: the above-mentioned material that stirs is delivered to the pressure ball nodulizer through worm conveyor be processed into pelletizing of uniform size; Step 4: the pelletizing that processes is sent into balling disk (-sc) carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, tentatively oven dry under 60 ℃ condition; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree continuation oven dry in the vertical furnace; Step 7: the pelletizing of oven dry is calcined under 1200 ℃ of high temperature in conveyor is sent into rotary kiln; Step 8: after the pelletizing after the calcining, naturally cooling cause 60 ℃～80 ℃, get into feed bin, become qualified yellow phosphorus furnace charge through bucket elevator.
The content of the Vanadium Pentoxide in FLAKES in the ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in the said step 4 is 30mm.
Water ratio after the preliminary oven dry in preparing method's step 5 is 6%.
Water ratio after the continuation oven dry in preparing method's step 6 is 0.6%.
In the present invention, the cohesive strength of said sticker is high, forges the pressure that pelletizing behind the knot can bear 200kg.
During this practical implementation technical scheme of the present invention, five phosphorus oxide content in the ground phosphate rock are high more good more.Higher-grade phosphorus fine ore preferably, the high more production yellow phosphorus of grade cost is low more.
Claims (5)
1. a ground phosphate rock is processed the working method of pelletizing yellow phosphorus furnace charge, comprises ground phosphate rock and humic acids and sodium hydroxide, it is characterized in that: the raw material weight component required with every production 1000Kg yellow phosphorus pelletizing furnace charge finished product is following:
Ground phosphate rock 1000Kg
Humic acids 100Kg
Sodium hydroxide 20Kg
The preparation method is following:
Step 1: humic acids and sodium hydroxide are mixed clear water that the back adds 4 times of weight stir and heat to 95 ℃～100 ℃, it is for use to process sticker;
Step 2: ground phosphate rock is put into biaxial rneader, add above-mentioned sticker and stir;
Step 3: the above-mentioned material that stirs is delivered to the pressure ball nodulizer through worm conveyor be processed into pelletizing of uniform size;
Step 4: the pelletizing that processes is sent into balling disk (-sc) carry out tumbling;
Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under 50 ℃～60 ℃ condition, tentatively dries;
Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree continuation oven dry in the vertical furnace;
Step 7: the pelletizing of oven dry is calcined under 1000 ℃～1200 ℃ high temperature in conveyor is sent into rotary kiln;
Step 8: after the pelletizing after the calcining, naturally cooling cause 60 ℃～80 ℃, get into feed bin, promptly become the yellow phosphorus furnace charge through bucket elevator.
2. a kind of ground phosphate rock according to claim 1 is processed the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the content of the Vanadium Pentoxide in FLAKES in the ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
3. a kind of ground phosphate rock according to claim 1 is processed the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the pelletizing diameter in the said step 4 is 30mm.
4. a kind of ground phosphate rock according to claim 1 is processed the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the water ratio after the preliminary oven dry in preparing method's step 5 is 4～6%.
5. a kind of ground phosphate rock according to claim 1 is processed the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the water ratio after the continuation oven dry in preparing method's step 6 is 0.4～0.6%.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466573A (en) * | 2013-09-13 | 2013-12-25 | 成都乐氏化工工程有限公司 | Energy-saving method for preparing yellow phosphorus from low-quality phosphate ore |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
| WO2014194565A1 (en) * | 2013-06-04 | 2014-12-11 | 四川玖长科技有限公司 | Raw material of composite pellets used in kiln process for production of phosphoric acid, and shaping method therefor |
| CN104261363A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Method for granulating, molding and calcining ground phosphorite |
| CN104261362A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Powdered rock phosphate pellet pressing, molding and roasting method |
| CN104261365A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Enriching and pelletizing method of low-grade powdered rock phosphate |
| CN104261364A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Short-process enriching and pelletizing method of low-grade powdered rock phosphate |
| CN104261367A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Short-process decarburization process of powdered rock phosphate for yellow phosphorus production |
| CN104261368A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Powdered rock phosphate pellet pressing, molding and drying method |
| CN104445113A (en) * | 2014-12-08 | 2015-03-25 | 四川有峰环保科技有限公司 | Method and raw material for producing yellow phosphorus or phosphoric acid based on electric furnace |
| 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 |
| CN108249411A (en) * | 2018-01-02 | 2018-07-06 | 昆明理工大学 | A kind of ground phosphate rock or broken phosphorus ore binding agent preparation method and type ore deposit production method |
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphorus ore micro mist pelletizing and preparation method thereof |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194565A1 (en) * | 2013-06-04 | 2014-12-11 | 四川玖长科技有限公司 | Raw material of composite pellets used in kiln process for production of phosphoric acid, and shaping method therefor |
| US10435300B2 (en) | 2013-06-04 | 2019-10-08 | Sichuan Ko Chang Technology Co., Ltd. | Raw material of composite pellets used in kiln phosphoric acid process, and forming method therefor |
| CN103466573A (en) * | 2013-09-13 | 2013-12-25 | 成都乐氏化工工程有限公司 | Energy-saving method for preparing yellow phosphorus from low-quality phosphate ore |
| CN103663396A (en) * | 2013-10-26 | 2014-03-26 | 刘静忠 | Balling method using medium- and low-grade phosphate rocks or ground phosphate rocks |
| CN103663396B (en) * | 2013-10-26 | 2016-02-03 | 刘静忠 | Utilize the pelletizing method of mid low grade phosphate rock or ground phosphate rock |
| CN104261368A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Powdered rock phosphate pellet pressing, molding and drying method |
| CN104261367B (en) * | 2014-09-24 | 2016-09-21 | 云南天安化工有限公司 | A kind of short route decarbonization process of phosphorus production ground phosphate rock |
| CN104261367A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Short-process decarburization process of powdered rock phosphate for yellow phosphorus production |
| CN104261365A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Enriching and pelletizing method of low-grade powdered rock phosphate |
| CN104261363A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Method for granulating, molding and calcining ground phosphorite |
| CN104261364A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Short-process enriching and pelletizing method of low-grade powdered rock phosphate |
| CN104261362A (en) * | 2014-09-24 | 2015-01-07 | 云南天安化工有限公司 | Powdered rock phosphate pellet pressing, molding and roasting method |
| CN104261365B (en) * | 2014-09-24 | 2016-03-30 | 云南天安化工有限公司 | A kind of enrichment pelletizing method of low grade rock phosphate |
| CN104261362B (en) * | 2014-09-24 | 2016-05-25 | 云南天安化工有限公司 | A kind of ground phosphate rock pressure ball molding method of roasting |
| CN104261364B (en) * | 2014-09-24 | 2016-06-01 | 云南天安化工有限公司 | A kind of short route enrichment balling-up method of low grade rock phosphate |
| CN104445113A (en) * | 2014-12-08 | 2015-03-25 | 四川有峰环保科技有限公司 | Method and raw material for producing yellow phosphorus or phosphoric acid based on electric furnace |
| 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 |
| CN108249411A (en) * | 2018-01-02 | 2018-07-06 | 昆明理工大学 | A kind of ground phosphate rock or broken phosphorus ore binding agent preparation method and type ore deposit production method |
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphorus ore micro mist pelletizing and preparation method thereof |
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Effective date of registration: 20180705 Address after: 550400 Qing Keng Industrial Park, Weng County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Patentee after: Weng an majestic phosphorous chemical Creative Technology Ltd. Address before: 441600 Hubei Xiangyang Baokang County Chengguan Town Grain Management Office Patentee before: Zhang Xinghua |
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Effective date of registration: 20210630 Address after: 550400 Weng'an Yihua Phosphorus Chemical Industry Co., Ltd., QingKeng Industrial Park, Weng'an county, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province Patentee after: Weng'an Yiye Phosphorus Chemical Industry Co.,Ltd. Address before: 550400 Qing Keng Industrial Park, Weng County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Patentee before: Weng an majestic phosphorous chemical Creative Technology Ltd. |
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