CN102701164B - 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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- CN102701164B CN102701164B CN201210000167.9A CN201210000167A CN102701164B CN 102701164 B CN102701164 B CN 102701164B CN 201210000167 A CN201210000167 A CN 201210000167A CN 102701164 B CN102701164 B CN 102701164B
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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 treatment process of yellow phosphorus electric furnace, a kind of ground phosphate rock is made the working method of pelletizing yellow phosphorus furnace charge specifically.
Background technology
The raw material of phosphorus electric furnace processed is all to take the raw ore lump ore as raw materials for production at present, characteristics according to 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 again a large amount of fine ores can't recycle, cause the wasting of resources, also has the carbonate impurity that enters the stove substitution at lump ore stone, resolve into carbonic acid gas in the process of heating, the reduction of carbonic acid gas, along with the phosphorus ore of the rising gradually explosion of temperature increases dust, bring difficulty to the normal operation of electric furnace and the refinement treatment of thick phosphorus, because dust increases, electrode current easily fluctuates, easily tie arch in stove, the material that collapses is frequent, molten bath resistance, electric current is wayward, furnace pressure increases severely, cause electrode place flame when serious, burn out the 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 current production yellow phosphorus, make favourable phosphate rock resource comprehensive utilization, reduce production costs, raw material urgently to be resolved hurrily enters the processing treatment of stokehold.
Summary of the invention
The object of the invention is to solve the technical deficiency of above-mentioned existence, provide a kind of ground phosphate rock to make the working method of pelletizing yellow phosphorus furnace charge, after utilizing the powder phosphate ore processing to become ground phosphate rock, be made into pelletizing of uniform size by binding agent, make yellow phosphorus furnace charge finished product after the drying calcining, have and economize on resources and comprehensive utilization of resources, can improve output phosphor, reduce energy consumption, reduce the characteristics of polluting, reducing production costs.
The present invention includes raw material humic acids and the sodium hydroxide of ground phosphate rock and the required use of binding agent, the technical scheme adopted is: the raw material weight component required with every production 1000Kg yellow phosphorus pelletizing furnace charge finished product is as follows: ground phosphate rock 1000Kg, humic acids 100Kg, sodium hydroxide, 20Kg, the preparation method is as follows: step 1: the clear water that adds 4 times of weight after humic acids and sodium hydroxide mixing is stirred and heats to 95 ℃～100 ℃, make binding agent stand-by; Step 2: ground phosphate rock is put into to biaxial rneader, add above-mentioned binding agent to stir; Step 3: the above-mentioned material stirred is delivered to the pressure ball nodulizer through worm conveyor and be processed into pelletizing of uniform size; Step 4: the pelletizing processed is sent into to balling disk (-sc) and carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under the condition of 50 ℃～60 ℃, tentatively dries; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree in vertical furnace and is continued to dry; Step 7: the pelletizing of oven dry is calcined in conveyor is sent into rotary kiln under 1000 ℃～1200 ℃ high temperature; Step 8: the pelletizing after calcining, naturally cooling enters feed bin through bucket elevator after causing 60 ℃～80 ℃, becomes qualified yellow phosphorus furnace charge.
In technique scheme: the content of the Vanadium Pentoxide in FLAKES in ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter described in step 4 is 30mm.
Water ratio after preliminary oven dry in preparation method's step 5 is 4～6%.
Water ratio after continuation in preparation method's step 6 is dried is 0.4～0.6%.
Technique scheme proposed by the invention, utilize powder Phosphate Rock breeze, press to pelletizing of the same size by binding agent through ball press, the harmful carbonate impurity in decomposing phosphate rock stone fully after drying calcining, have good intensity, in sending into Electric Cooker phosphorus process, decomposition due to carbonate impurity, can greatly reduce that power consumption, furnace gas pressure-stabilisation, phosphorus mud are few, furnace charge is difficult for crust and the material that collapses, but boiler face workman normal running maintenance do not have potential safety hazard.Entering stove with traditional lump ore compares, improve the phosphorus pentoxide content 50% of ground phosphate rock, by ten thousand tons of yellow phosphorus electric furnaces, calculate, in the situation that do 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, pass through the technical program, the electrode of electric furnace is used consumption little, not fragile, after furnace charge enters stove, the fusion time is short, simultaneously, also take full advantage of discarded fine ore resource, there is output high, cost is low, the unusual effect of less energy consumption and reducing polluted emission, it is the modern technique of protection China's phosphate rock resource and phosphorous chemical industry Sustainable development.
Embodiment
Embodiment 1: with burden cost 1000kg, get the raw materials ready as follows: ground phosphate rock 1000kg, humic acids 100kg, sodium hydroxide 20kg.
The preparation method is as follows:
Step 1: the clear water that adds 4 times of weight after humic acids and sodium hydroxide mixing is stirred and heats to 95 ℃, make binding agent stand-by; Step 2: ground phosphate rock is put into to biaxial rneader, add above-mentioned binding agent to stir; Step 3: the above-mentioned material stirred is delivered to the pressure ball nodulizer through worm conveyor and be processed into pelletizing of uniform size; Step 4: the pelletizing processed is sent into to balling disk (-sc) and carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under the condition of 50 ℃, tentatively dries; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree in vertical furnace and is continued to dry; Step 7: the pelletizing of oven dry is calcined in conveyor is sent into rotary kiln under 1000 ℃ of high temperature; Step 8: the pelletizing after calcining, naturally cooling enters feed bin through bucket elevator after causing 60 ℃～80 ℃, becomes qualified yellow phosphorus furnace charge.
The content of the Vanadium Pentoxide in FLAKES in ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in described step 4 is 30mm.
Water ratio after preliminary oven dry in preparation method's step 5 is 4%.
Water ratio after continuation in preparation method's step 6 is dried is 0.4%.
Embodiment 2: with burden cost 2000kg, get the raw materials ready as follows: ground phosphate rock 2000kg, humic acids 200kg, sodium hydroxide 40kg.
The preparation method is as follows:
Step 1: the clear water that adds 4 times of weight after humic acids and sodium hydroxide mixing is stirred and heats to 100 ℃, make binding agent stand-by; Step 2: ground phosphate rock is put into to biaxial rneader, add above-mentioned binding agent to stir; Step 3: the above-mentioned material stirred is delivered to the pressure ball nodulizer through worm conveyor and be processed into pelletizing of uniform size; Step 4: the pelletizing processed is sent into to balling disk (-sc) and carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under the condition of 55 ℃, tentatively dries; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree in vertical furnace and is continued to dry; Step 7: the pelletizing of oven dry is calcined in conveyor is sent into rotary kiln under 1100 ℃ of high temperature; Step 8: the pelletizing after calcining, naturally cooling enters feed bin through bucket elevator after causing 60 ℃～80 ℃, becomes qualified yellow phosphorus furnace charge.
The content of the Vanadium Pentoxide in FLAKES in ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in described step 4 is 30mm.
Water ratio after preliminary oven dry in preparation method's step 5 is 5%.
Water ratio after continuation in preparation method's step 6 is dried is 0.5%.
Embodiment 3: with burden cost 3000kg, get the raw materials ready as follows: ground phosphate rock 3000kg, humic acids 300kg, sodium hydroxide 60kg.
The preparation method is as follows:
Step 1: the clear water that adds 4 times of weight after humic acids and sodium hydroxide mixing is stirred and heats to 98 ℃, make binding agent stand-by; Step 2: ground phosphate rock is put into to biaxial rneader, add above-mentioned binding agent to stir; Step 3: the above-mentioned material stirred is delivered to the pressure ball nodulizer through worm conveyor and be processed into pelletizing of uniform size; Step 4: the pelletizing processed is sent into to balling disk (-sc) and carry out tumbling; Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under the condition of 60 ℃, tentatively dries; Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree in vertical furnace and is continued to dry; Step 7: the pelletizing of oven dry is calcined in conveyor is sent into rotary kiln under 1200 ℃ of high temperature; Step 8: the pelletizing after calcining, naturally cooling enters feed bin through bucket elevator after causing 60 ℃～80 ℃, becomes qualified yellow phosphorus furnace charge.
The content of the Vanadium Pentoxide in FLAKES in ground phosphate rock >=28, the content of humic acids >=40%, sodium hydroxide 98%.
Pelletizing diameter in described step 4 is 30mm.
Water ratio after preliminary oven dry in preparation method's step 5 is 6%.
Water ratio after continuation in preparation method's step 6 is dried is 0.6%.
In the present invention, the cohesive strength of described binding agent is high, forges the pressure that pelletizing after knot can bear 200kg.
During this concrete enforcement technical solution of the present invention, five phosphorus oxide content in ground phosphate rock are more high better.High-grade phosphorus heading powder preferably, the higher production yellow phosphorus of grade cost is lower.
Claims (5)
1. a ground phosphate rock is made 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 as follows:
Ground phosphate rock 1000Kg
Humic acids 100Kg
Sodium hydroxide 20Kg
The preparation method is as follows:
Step 1: the clear water that adds 4 times of weight after humic acids and sodium hydroxide mixing is stirred and heats to 95 ℃～100 ℃, make binding agent stand-by;
Step 2: ground phosphate rock is put into to biaxial rneader, add above-mentioned binding agent to stir;
Step 3: the above-mentioned material stirred is delivered to the pressure ball nodulizer through worm conveyor and be processed into pelletizing of uniform size;
Step 4: the pelletizing processed is sent into to balling disk (-sc) and carry out tumbling;
Step 5: the pelletizing that tumbling is good is sent into hotblast stove, under the condition of 50 ℃～60 ℃, tentatively dries;
Step 6: the pelletizing that will tentatively dry is sent into 80 ℃～100 ℃ degree in vertical furnace and is continued to dry;
Step 7: the pelletizing of oven dry is calcined in conveyor is sent into rotary kiln under 1000 ℃～1200 ℃ high temperature;
Step 8: the pelletizing after calcining, naturally cooling enters feed bin through bucket elevator after causing 60 ℃～80 ℃, becomes the Yellow phosphorus furnace material.
2. a kind of ground phosphate rock according to claim 1 is made the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the content of the Vanadium Pentoxide in FLAKES in 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 made the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the pelletizing diameter in described step 4 is 30mm.
4. a kind of ground phosphate rock according to claim 1 is made the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the water ratio after the preliminary oven dry in preparation method's step 5 is 4～6%.
5. a kind of ground phosphate rock according to claim 1 is made the working method of pelletizing yellow phosphorus furnace charge, it is characterized in that: the water ratio after the continuation in preparation method's step 6 is dried is 0.4～0.6%.
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| CN201210000167.9A CN102701164B (en) | 2012-01-04 | 2012-01-04 | Processing method for preparing phosphate rock powder into pellet yellow phosphorus charge |
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| CN201210000167.9A CN102701164B (en) | 2012-01-04 | 2012-01-04 | Processing method for preparing phosphate rock powder into pellet yellow phosphorus charge |
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| CN102701164B true CN102701164B (en) | 2014-01-08 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104211028B (en) | 2013-06-04 | 2017-03-22 | 四川玖长科技有限公司 | Composite pellet material used for kiln method phosphoric acid technology and molding method thereof |
| CN103466573B (en) * | 2013-09-13 | 2015-05-20 | 成都乐氏化工工程有限公司 | Energy-saving method for preparing yellow phosphorus from low-quality phosphate ore |
| 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 |
| 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 |
| 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 |
| CN104261368B (en) * | 2014-09-24 | 2016-09-21 | 云南天安化工有限公司 | A kind of method that ground phosphate rock pressure ball molding is dried |
| CN104261363B (en) * | 2014-09-24 | 2016-03-30 | 云南天安化工有限公司 | A kind of ground phosphate rock granulating and forming roasting 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 |
| CN108249411B (en) * | 2018-01-02 | 2021-05-14 | 昆明理工大学 | Preparation method of ground phosphate rock or crushed phosphate rock binder and molded ore production method |
| CN110155970B (en) * | 2019-06-12 | 2021-04-27 | 攀枝花学院 | Phosphate ore micro-powder pellet and preparation method thereof |
| CN117699753A (en) * | 2023-12-25 | 2024-03-15 | 河南郑矿机器有限公司 | Single phosphate rock powder binder-free granulating and drying process method |
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| CN101531351A (en) * | 2009-03-17 | 2009-09-16 | 车建青 | Method for preparing yellow phosphorus by low or middle grade phosphorus ore |
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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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Addressee: Zhang Xinghua Document name: payment instructions |