CN2931448Y - Special equipment for producing phosphoric acid by phosphorite carbon heating method - Google Patents
Special equipment for producing phosphoric acid by phosphorite carbon heating method Download PDFInfo
- Publication number
- CN2931448Y CN2931448Y CN 200620019649 CN200620019649U CN2931448Y CN 2931448 Y CN2931448 Y CN 2931448Y CN 200620019649 CN200620019649 CN 200620019649 CN 200620019649 U CN200620019649 U CN 200620019649U CN 2931448 Y CN2931448 Y CN 2931448Y
- Authority
- CN
- China
- Prior art keywords
- phosphoric acid
- kiln
- reduction reaction
- preheating
- fire chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A special equipment for producing carbothermic smelting of phosphoric acid from phosphorus ores belonging to the phosphoric acid production technology area, which comprises an upright preheating tank provided inside an upright oxidation fuel chamber, a feed inlet provided at the top of the preheating tank, and a discharge outlet provided at the bottom of the preheating tank. This utility model is characterized in that one end of a horizontal rotating reduction reaction kiln is communicated with the discharge outlet of the preheating tank and the lower portion of the oxidation fuel chamber while the other end is communicated with a kiln head, and water chamber sealing arrangements are respectively provided between the end head of the reduction reaction kiln and the kiln head of the oxidation fuel chamber. The utility model has the advantages that the phosphoric acid can be directly produced from middle-grade or low-grade phosphorus ores, the production is with high quality, the cost of manufacture is low, the phenomenon of preignition of the reduction carbon is not existing because the raw material is heating up in a air isolation condition, the phosphoric steam and the carbon monoxide are reacting in a special oxidation fuel chamber, the phosphoric acid anhydride and the carbon dioxide obtained do not contact with mass materials thereby the no inverse suction and no freeing ring exist, the reduction rate and the acquiring rate of the phosphoric acid anhydride are high, the preparation of materials is simple , the re-package is not needed, the operation of the equipment is easy, the setting and debug time is short, and the operation is smooth.
Description
Technical field
The utility model belongs to the phosphoric acid production equipment technical field.
Background technology
Existing thermal phosphoric acid production unit mainly is the special-purpose sour stove that burns, and this stove must be raw material production phosphoric acid with the electric furnace yellow phosphorus, yellow phosphorus high price, phosphoric acid production cost height.Occur at present using the rotary kiln of producing cement, by the new technology of Rock Phosphate (72Min BPL), silica and charcoal heat production in next life method phosphoric acid, its phosphoric acid cost is low, but has following shortcoming: the pre-ignition phenomenon appears in the reduction charcoal in group's material, influences reduction ratio; The Vanadium Pentoxide in FLAKES that generates in the furnace gas is gone into the material absorption of stove group, influences the yield of Vanadium Pentoxide in FLAKES; In the production process, ring formation is serious in the stove, influences the normal operation of stove; In order to address the above problem, when raw material is got the raw materials ready, adopt the technology of getting the raw materials ready of a balling-up, secondary parcel, make get the raw materials ready complicated; The reduction of furnace charge can not obviously separate with oxidation, can influence each other, and has reduced sour yield; The siliceous height of deslagging is difficult to utilize, and is unfavorable for environmental protection.
The utility model content
The purpose of this utility model is the shortcoming that overcomes prior art, a kind of specific equipment that the phosphorus ore carbothermy is produced phosphoric acid that is used for is provided, low-grade Rock Phosphate (72Min BPL) was produced phosphoric acid during this equipment not only can be used, production cost is low, and the yield height of reduction ratio, Vanadium Pentoxide in FLAKES and acid, it is simple to get the raw materials ready, the equipment operation smoothness.
Structure of the present utility model is: the inside of a vertical oxidizing fire chamber is provided with a vertical preheating can, the preheating can top is established the opening for feed bottom and is established discharge port, the oxidizing fire chamber is provided with air intlet and top and establishes the pneumatic outlet bottom and establish ash discharging hole, one end of one horizontal rotation reduction reaction kiln is communicated with the bottom of the discharge port of preheating can and oxidizing fire chamber, the other end of rotation reduction reaction kiln is communicated with kiln hood, kiln hood is established fuel and air intlet and slag notch, is respectively equipped with the water jacket tightness system between the termination of rotation reduction reaction kiln and oxidizing fire chamber and the kiln hood.
Working process of the present utility model: by rock phosphate powder, group's material that ground silica and powdered carbon are pressed into is through conventional adjustable quantitative sealed feeder unit, opening for feed from preheating can falls into preheating can, in preheating can, be preheating to required temperature, enter rotation reduction reaction kiln subsequently, raw material is heating reduction in kiln, element phosphor and carbon monoxide evaporate, the bottom of autoxidation combustion chamber enters this chamber, carry out oxidizing fire with the air that enters this chamber, obtain Vanadium Pentoxide in FLAKES and carbon dioxide, the heat that oxidizing fire produced heats preheating can, and Vanadium Pentoxide in FLAKES and the carbon dioxide pneumatic outlet through top, oxidizing fire chamber enters conventional heat exchange, dedusting and hydration systems carry out the production and the collection of phosphoric acid.
The beneficial effects of the utility model: low-grade phosphorus ore direct production phosphoric acid in utilizing, good product quality, production cost is low, and institute's waste discharge slag can be used as the grog of producing cement, helps environmental protection and increases economic efficiency.Raw material heats up under the condition of isolated gas, does not exist to reduce the pre-ignition phenomenon of charcoal.Reduction is well-separated with oxidising process, and its reaction is not disturbed mutually.Phosphorus steam and carbon monoxide at gained under the anoxic pyritous reductive condition react in special oxidizing fire chamber, the Vanadium Pentoxide in FLAKES that obtains does not contact with a material with carbonic acid gas, there is not ring formation problem in the stove in the back suction phenomenon that does not have Vanadium Pentoxide in FLAKES yet.The yield height of reduction ratio, Vanadium Pentoxide in FLAKES and acid, it is simple to get the raw materials ready, and does not need to wrap up again, and operation of equipment is easy, and it is short to start the adjustment time, and running is smooth.
Description of drawings
Accompanying drawing is looked cross-sectional view for the master of embodiment.
Embodiment
See embodiment shown in the drawings: the inside of the vertical oxidizing fire chamber 1 that a refractory brick is built into is provided with the vertical preheating can 2 that a refractory materials is made, and the top of preheating can 2 is provided with the opening for feed, the bottom that link to each other with adjustable quantitative sealed feeder unit 3 and is provided with discharge port 4.1 top of oxidizing fire chamber is provided with pneumatic outlet 5, and is provided with air intlet 6 in the bottom, and the bottom is provided with ash discharging hole 7.One end of horizontal rotation reduction reaction kiln 8 is communicated with the bottom of the discharge port 4 of preheating can 2 and oxidizing fire chamber 1.The other end of reduction reaction kiln 8 is communicated with fixing kiln hood 9, and kiln hood 9 tops are provided with fuel and air intlet 10, and the bottom sets out cinder notch 11.The two ends and the fixation kit of rotation reduction reaction kiln 8 promptly and between oxidizing fire chamber 1 and the kiln hood 9 are respectively equipped with water jacket tightness system 12.13 driving master wheels for rotation reduction reaction kiln 8,14 are rolling ring, and 15 is support roller, and 16 is drive pinion, and 17 is speed reduction unit.The skin of rotation reduction reaction kiln 8 is a steel plate, and liner is a refractory materials.18 is standby airduct.With this device fabrication thermal phosphoric acid, the reduction ratio of phosphorus is greater than 86% in the raw material.
Above embodiment is only for the utility model is described in further detail, and scope of the present utility model is not subjected to the limitation of illustrated embodiment.
Claims (4)
1, a kind of phosphorus ore carbothermy is produced the specific equipment of phosphoric acid, it is characterized in that: the inside of a vertical oxidizing fire chamber is provided with a vertical preheating can, the preheating can top is established the opening for feed bottom and is established discharge port, the oxidizing fire chamber is provided with air intlet and top and establishes the pneumatic outlet bottom and establish ash discharging hole, one end of one horizontal rotation reduction reaction kiln is communicated with the bottom of the discharge port of preheating can and oxidizing fire chamber, the other end of rotation reduction reaction kiln is communicated with kiln hood, kiln hood is established fuel and air intlet and slag notch, is respectively equipped with the water jacket tightness system between the termination of rotation reduction reaction kiln and oxidizing fire chamber and the kiln hood.
2, as the specific equipment of the said production phosphoric acid of claim 1, it is characterized in that: the opening for feed at preheating can top links to each other with the adjustable quantitative sealed feeder unit.
3, as the specific equipment of the said production phosphoric acid of claim 1, it is characterized in that: the bottom of oxidizing fire chamber is provided with air intlet.
4, as the specific equipment of the said production phosphoric acid of claim 1, it is characterized in that: the skin of rotation reduction reaction kiln is a steel plate, and liner is a refractory materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019649 CN2931448Y (en) | 2006-06-28 | 2006-06-28 | Special equipment for producing phosphoric acid by phosphorite carbon heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019649 CN2931448Y (en) | 2006-06-28 | 2006-06-28 | Special equipment for producing phosphoric acid by phosphorite carbon heating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2931448Y true CN2931448Y (en) | 2007-08-08 |
Family
ID=38347949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620019649 Expired - Fee Related CN2931448Y (en) | 2006-06-28 | 2006-06-28 | Special equipment for producing phosphoric acid by phosphorite carbon heating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2931448Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118114B (en) * | 2007-09-14 | 2010-09-29 | 湖北三新磷酸有限公司 | Novel industrialization three-way type roll table kiln for directly preparing phosphoric acid with phosphate ore |
| CN101118116B (en) * | 2007-09-14 | 2011-04-06 | 湖北三新磷酸有限公司 | Novel industrialization multi-channel type pushed-bat kiln for directly preparing phosphoric acid with phosphate ore |
| CN112429707A (en) * | 2020-11-27 | 2021-03-02 | 四川阳华环保科技有限公司 | Method and device for producing yellow phosphorus and phosphoric acid by replacing in kiln method preheating material sealing rotary cylinder |
-
2006
- 2006-06-28 CN CN 200620019649 patent/CN2931448Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118114B (en) * | 2007-09-14 | 2010-09-29 | 湖北三新磷酸有限公司 | Novel industrialization three-way type roll table kiln for directly preparing phosphoric acid with phosphate ore |
| CN101118116B (en) * | 2007-09-14 | 2011-04-06 | 湖北三新磷酸有限公司 | Novel industrialization multi-channel type pushed-bat kiln for directly preparing phosphoric acid with phosphate ore |
| CN112429707A (en) * | 2020-11-27 | 2021-03-02 | 四川阳华环保科技有限公司 | Method and device for producing yellow phosphorus and phosphoric acid by replacing in kiln method preheating material sealing rotary cylinder |
| CN112429707B (en) * | 2020-11-27 | 2022-07-15 | 四川阳华环保科技有限公司 | Method and device for producing yellow phosphorus and phosphoric acid by replacing in kiln method preheating material sealing rotary cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2730754C (en) | Method and system for producing calcium carbide | |
| CN102616759B (en) | Technique and device for preparing phosphoric acid by fluidized bed reactor | |
| CN101210209B (en) | Application of coal modifier in shaft kiln incineration and producing technique thereof | |
| CN104211425B (en) | Method of comprehensive utilization and the process system thereof of rotary kiln high temperature sludge ball is gone out in kiln-process phosphoric acid technique | |
| WO2010025620A1 (en) | Method and device for producing yellow phosphorus or phosphoric acid by vertical airtight smoke-baffle kiln | |
| CN102039070A (en) | Method and equipment for separating molten dust carried by high-temperature gas and application thereof | |
| CN101531351B (en) | Method for preparing yellow phosphorus by low or middle grade phosphorus ore | |
| CN101956037A (en) | Method and device for indirect heating type reduction iron making | |
| KR101528411B1 (en) | External Heating Type Coal Material Decomposition Apparatus With Multiple Tubes | |
| CN112429707B (en) | Method and device for producing yellow phosphorus and phosphoric acid by replacing in kiln method preheating material sealing rotary cylinder | |
| CN100451133C (en) | Method and apparatus for producing directly reduced iron with coke oven gas | |
| CN106276901A (en) | A kind of oxygen full-boiled process produces carbide and the method and system of CO gas | |
| CN2931448Y (en) | Special equipment for producing phosphoric acid by phosphorite carbon heating method | |
| CN204434292U (en) | Prepare the system of calcium carbide | |
| CN206705696U (en) | A kind of furnace of calcium carbide | |
| CN203947031U (en) | A kind of rotary kiln with power generation assembly | |
| CN101298959A (en) | Industrialized vertical type muffle kiln for preparing yellow phosphorus or direct preparing phosphoric acid with phosphorus ore | |
| CN201952232U (en) | Special shaft kiln equipment for producing kiln process phosphoric acid | |
| CN206384846U (en) | The system for handling phosphorus ore | |
| CN101245416B (en) | Magnesium refining method with vertical kiln vertical pot silicon heat reduction | |
| CN201125164Y (en) | Apparatus for producing phosphoric acid by carbothermy | |
| CN203478933U (en) | Drum type roasting device performing roasting on minerals or slags | |
| CN201343448Y (en) | Vertical type kiln for producing yellow phosphor and phosphoric acid | |
| CN206384843U (en) | The system for handling phosphorus ore | |
| CN206384845U (en) | Rotary hearth furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |