CN201704069U - Phosphorus production vertical brick kiln - Google Patents
Phosphorus production vertical brick kiln Download PDFInfo
- Publication number
- CN201704069U CN201704069U CN2010201577174U CN201020157717U CN201704069U CN 201704069 U CN201704069 U CN 201704069U CN 2010201577174 U CN2010201577174 U CN 2010201577174U CN 201020157717 U CN201020157717 U CN 201020157717U CN 201704069 U CN201704069 U CN 201704069U
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- CN
- China
- Prior art keywords
- kiln
- passage
- phosphorus
- adobe
- combustion chamber
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- Expired - Lifetime
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Abstract
A phosphorus production vertical brick kiln comprises a kiln body. A stacking platform is arranged on the upper portion of the kiln body; a green brick passage and a combustion chamber are arranged inside the kiln body; a heat conducting partition wall is arranged between the green brick passage and the combustion chamber; a reducing gas outlet is arranged on the green brick passage; a fuel inlet, a smoke gas outlet and an air inlet are arranged inside the combustion chamber; and a discharging system is mounted at the bottom of the green brick passage. The phosphorus production vertical brick kiln leads materials to orderly run inside the kiln and effectively controls firing process indexes of the materials by the aid of control of the stacking and discharging system, and has the advantages of stable temperature distribution inside the kiln, small temperature difference on the same section, even material heating, capability of solving the problem of material over-burning and under-burning, fine air permeability inside the kiln, capability of stabilizing phosphorus reduction rate above 95%, small phosphorus steam running resistance, low phosphorus loss, compact structure of the kiln body, fine tightness, concentration of heat released by phosphorus steam and carbon monoxide burning on the materials, and heat use ratio far higher than that of a tunnel kiln.
Description
Technical field
The utility model relates to the industrialization kiln of a kind of phosphorous chemical industry industry production phosphoric acid or yellow phosphorus.
Background technology
Kiln-process phosphoric acid is since propose, originally mainly concentrate on two study routes: kiln process phosphoric acid and tunnel furnace method phosphoric acid, after multiple testing and verification, the research direction of kiln-process phosphoric acid all focuses on the verticle furnace of kiln basically now, verticle furnace of kiln basic technology route is: batching, balling-up, oven dry, charging, preheating, reduction, cooling, fragmentation, discharging, reducing gas combustion heat supplying.Yet, in actually operating, material is difficult to ensure the thermally equivalent inequality, and extension kliner coating phenomenon is serious, the temperature difference is very big on same section, limit portion temperature of charge is too high, and firing time is long, and the center temperature of charge is low excessively, do not reach reduction temperature, reduction ratio is low excessively, and it is serious to take out the heart, and what be difficult to guarantee to produce carries out smoothly.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of investment is little, heat utilization efficiency is high, level of automation is high, the advantage of having gathered ordinary shaft kiln and tunnel furnace, can satisfy the processing requirement in each stage of kiln-process phosphoric acid production, guarantee to produce the vertical brickkiln of system phosphorus that carries out smoothly.
The purpose of this utility model is achieved in that the vertical brickkiln of a kind of system phosphorus, comprise the kiln body, kiln body top is provided with the piling platform, be provided with adobe passage and combustion chamber in the kiln body, be provided with the heat conduction partition wall between adobe passage and the combustion chamber, the adobe passage is provided with the reducing gas outlet, has fuel inlet, exhanst gas outlet and gas inlet in the combustion chamber, and the adobe channel bottom is equipped with discharge system.Adobe passage bottom offers cool air inlet.Adobe passage top offers inert gas entrance.Be provided with economizer bank in the kiln body, economizer bank communicates with gas inlet.The cross section of adobe passage is circle or Polygons.Discharge system is made of discharging lifting device and the discharge control apparatus that matches with the discharging lifting device.
The vertical brickkiln of system phosphorus that the utility model provides has the following advantages: 1, by the control of piling and discharge system, make material operation in an orderly manner in kiln, can realize stratified feeding and layering discharging, controlled the firing process index of material well; 2, kiln temperature distributional stability has a narrow range of temperature on the same cross section, and the temperature difference at Yao Bi and kiln center is in 10-30 ℃, and material is heated evenly, and has solved the situation of material burning and underburnt; 3, good permeability in the kiln, the phosphorus reduction ratio can be stabilized in more than 95%, and the phosphorous vapor running resistance is little, and the phosphorus loss is low; 4, kiln structure compactness, good airproof performance, the heat that phosphorous vapor and CO burning discharge all concentrates on the material, and heat utilization efficiency is far above tunnel furnace.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples: Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises kiln body 14, kiln body 14 tops are provided with palletizing system, be provided with adobe passage 8 and combustion chamber 5 in the kiln body 14, be provided with heat conduction partition wall 7 between adobe passage 8 and the combustion chamber 5, adobe passage 8 is provided with reducing gas outlet 15, has fuel inlet 6, exhanst gas outlet 4 and gas inlet 13 in the combustion chamber 5, and discharge system is equipped with in adobe passage 8 bottoms.Palletizing system is made of the piling platform 2 and the adobe transportation manipulator 1 on kiln body 14 tops.Adobe passage 8 bottoms offer cool air inlet 9.Adobe passage 8 tops offer inert gas entrance 3.Be provided with economizer bank 12 in the kiln body 16, economizer bank 12 communicates with gas inlet 13.The cross section of adobe passage 8 is circle or Polygons.Discharge system is made of discharging lifting device 10 and the discharge control apparatus 11 that matches with discharging lifting device 10.
But combustion chamber 5 layouts in the both sides of adobe passage 8 or all around in the utility model; Adobe passage 8 can have one or more groups, can combustion chamber shared 5 when adopting many prescriptions case.
Requirement according to production technique, also the vertical brickkiln of a plurality of system phosphorus can be carried out series-parallel connection, allow the reducing gas outlet 15 of several kilns previous or in parallel by connecting the fuel inlet of one of back or several kilns in parallel, carry out a plurality of kilns and work simultaneously, to improve output.
Working process of the present utility model is as follows: will make the phosphorus raw material and mix after dried adobe, place on the piling platform 2, adopt artificial or adobe transportation manipulator 1 is placed to adobe passage 8 with adobe from piling platform 2, the adobe passage is divided into preheating zone, reduction zone and cooling zone from top to bottom, after adobe enters the preheating zone, under 300 ℃ of left and right sides temperature condition, from inert gas entrance 3, blast an amount of rare gas element, to prevent that the carbon dust in the adobe from being reduced in advance.Adobe continues descending, with the high-temperature gas heat exchange that rises on the reduction zone, enter the reduction zone reaction, phosphorous vapor that restores and carbon monoxide are extracted out by reduction zone pneumatic outlet 15, send into combustion chamber 5 through fuel (phosphorus, carbon monoxide, postcombustion) inlet 6 and carry out oxidizing fire, heat for the brick body in the adobe passage 8 provides heat, makes the phosphoric in the adobe continue reduction by heat conduction kiln wall 7, gas fume after burning imports the phosphoric acid absorption unit by exhanst gas outlet 4, becomes phosphoric acid product; Brick body after reduction continues to drop to the cooling zone, with air or 12 heat exchange of oxygen-rich air preheating tube, heating back air enters combustion chamber 5 from gas inlet 13, as phosphorus, carbon monoxide and postcombustion incendiary combustion air, simultaneously, blast pipe from the bottom freezing air and 9 blast an amount of freezing air, carry out heat exchange with the brick body of cooling zone, and the surplus carbon that burns, for the reduction zone on top provides heat.When adobe is cooled to about 200 ℃, finish the discharging action jointly by automatic discharging lifting device 10 and automatic discharge control apparatus 11.This process material operates steadily, and the phosphorus reduction ratio can reach more than 95% in the brick body, the utilization ratio height of heat.
Claims (6)
1. make the vertical brickkiln of phosphorus for one kind, comprise kiln body (14), it is characterized in that: kiln body (14) top is provided with piling platform (2), be provided with adobe passage (8) and combustion chamber (5) in the kiln body (14), be provided with heat conduction partition wall (7) between adobe passage (8) and combustion chamber (5), adobe passage (8) is provided with reducing gas outlet (15), has fuel inlet (6), exhanst gas outlet (4) and gas inlet (13) in combustion chamber (5), and discharge system is equipped with in adobe passage (8) bottom.
2. the vertical brickkiln of system phosphorus according to claim 1 is characterized in that: adobe passage (8) bottom offers cool air inlet (9).
3. the vertical brickkiln of system phosphorus according to claim 1 is characterized in that: adobe passage (8) top offers inert gas entrance (3).
4. the vertical brickkiln of system phosphorus according to claim 1 is characterized in that: be provided with economizer bank (12) in the kiln body (14), economizer bank (12) communicates with gas inlet (13).
5. according to claim 1 or the vertical brickkiln of 2 or 3 described system phosphorus, it is characterized in that: the cross section of adobe passage (8) is circle or Polygons.
6. the vertical brickkiln of system phosphorus according to claim 1 is characterized in that: discharge system is made of discharging lifting device (10) and the discharge control apparatus (11) that matches with discharging lifting device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201577174U CN201704069U (en) | 2010-04-14 | 2010-04-14 | Phosphorus production vertical brick kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201577174U CN201704069U (en) | 2010-04-14 | 2010-04-14 | Phosphorus production vertical brick kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704069U true CN201704069U (en) | 2011-01-12 |
Family
ID=43441225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201577174U Expired - Lifetime CN201704069U (en) | 2010-04-14 | 2010-04-14 | Phosphorus production vertical brick kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219197A (en) * | 2010-04-14 | 2011-10-19 | 湖北三新磷酸有限公司 | Method and equipment for preparing phosphoric acid and refractory brick byproduct by using vertical phosphorus acid preparation brick kiln |
| CN107976061A (en) * | 2017-12-28 | 2018-05-01 | 陕西能源职业技术学院 | A kind of vertical ceramic firing heating unit of continous way and heating means |
-
2010
- 2010-04-14 CN CN2010201577174U patent/CN201704069U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219197A (en) * | 2010-04-14 | 2011-10-19 | 湖北三新磷酸有限公司 | Method and equipment for preparing phosphoric acid and refractory brick byproduct by using vertical phosphorus acid preparation brick kiln |
| CN102219197B (en) * | 2010-04-14 | 2013-03-06 | 湖北三新磷酸有限公司 | Equipment for preparing phosphoric acid and refractory brick byproduct by using vertical phosphorus acid preparation brick kiln |
| CN107976061A (en) * | 2017-12-28 | 2018-05-01 | 陕西能源职业技术学院 | A kind of vertical ceramic firing heating unit of continous way and heating means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110112 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |