CN1042602A - Energy-saving mechanized vertical kiln for cement manufacturing - Google Patents
Energy-saving mechanized vertical kiln for cement manufacturing Download PDFInfo
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- CN1042602A CN1042602A CN 89109323 CN89109323A CN1042602A CN 1042602 A CN1042602 A CN 1042602A CN 89109323 CN89109323 CN 89109323 CN 89109323 A CN89109323 A CN 89109323A CN 1042602 A CN1042602 A CN 1042602A
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- kiln
- shaft kiln
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the cement technology field, is a kind of energy-saving mechanical shaft kiln.By reducing the shaft kiln ratio of height to diameter, blast wind from tower grate top, establish in the tower grate airduct enlarge technology such as mouth solved shaft kiln when calcination of cement clinker in the middle part of improper ventilation, fire in a stove before fuel is added instability, problems such as operation control difficulty, thus product, quality improved, reduced energy consumption.In addition, adopting this process equipment, saved the manufacturing cost of civil engineering costs and this machine greatly, is the desirable firing process equipment in medium and small cement plant.
Description
The invention belongs to cement in vertical kiln firing process equipment
For a long time, the principal contradiction of cement in vertical kiln is the middle part improper ventilation, the heat zone instability, reducing atmosphere is heavy, and present domestic machine shaft kiln ratio of height to diameter was generally 4: 1, abroad be 3～3.5: 1, this in other words big shaft kiln height has increased bed of material resistance, is easy to generate the vicious circle of improper ventilation.Because oxygen is inadequate, make the heat waste of chemically incomplete combustion increase, so that energy consumption heighten.In addition, drawing badly of shaft kiln also directly influences the output of grog and quality.
Because kiln height degree is big, make that also the grog that is in heat zone can not cool off rapidly when leaving heat zone, also be the mineral that form of grog cooling curings rapidly.Because the tricalcium silicate C in the grog
3S is labile state when 1150 ℃～1250 ℃ temperature, slowly cooling off then wherein, a part is decomposed into C
2S and FCaO, stability is influenced, and quality reduces.
The purpose of this invention is to provide a kind of well-ventilated, output, quality height and stable, the novel shaft kiln process equipment that energy consumption is low again.
The objective of the invention is to be achieved through the following technical solutions:
The ratio of height to diameter of machine shaft kiln is reduced to less than 2.5: 1, and blower fan power coupling drops to less than 130 kilowatts by 215 kilowatts, thereby has reduced the power consumption of air blast, and air quantity is fully used, greatly saves energy.The wind that blasts in the kiln concentrates on tower castor top, slows down through enlarging mouth, evenly injects in the kiln from the blast cap air vent, thereby has accelerated the interior gas flow rate of kiln.Oxidizing atmosphere is dense, and the heat loss of chemically incomplete combustion significantly reduces, and the mineral of not only having strengthened material form, and the heat energy in grog when cooling is fully utilized, and heating power is concentrated, the fire in a stove before fuel is added is stable, so not only reduce coal consumption, and improved product, the quality of grog.Is 60 ° with the quiet broken liner plate of shaft kiln by the angle of facing upward that uprightly changes into the tower castor, and the bed of material is reduced the extruding force of kiln central part.The tower castor is done staged rank centering type, and the fire in a stove before fuel is added is steady when helping discharging like this.The airduct lower end is provided with the particle that falls into from the blast cap air vent when magazine is rotated the tower castor and can enters magazine automatically and be able to timely discharge, avoids stopping up airduct, and influence is ventilated.
Now in conjunction with the accompanying drawings embodiments of the invention are illustrated.This mechanized cement shaft kiln size diameter is 2.5 * 5 meters as shown in the figure, and its ratio of height to diameter is equivalent to 2: 1, and shell body is made with steel plate.The expansion mouth of kiln is a diameter 3300/2500 * 1200, and contraction bands is a diameter 2500 * 1200, and salband is a diameter 2500/2700 * 2400, and the air quantity of adapted blower fan is 200～250M
3/ minute, blast is 2000 millimeters of water; Power of fan is less than 130 kilowatts.
The transmission of tower castor can be adopted hydraulic pressure or machine driving.
This vertical kiln process advanced technology so that per kilogram heat consumption of clinker are 800～850 cards, and the grog power consumption is 12 degree, and output is higher than the shaft kiln of similar diameter.
Go into kiln from material and draw off to grog, the whole process flow time has shortened half.The grog non-scald on hand that draws off.Can reach the balance between wind, coal, the material three.
Adopt this process equipment can save civil engineering costs greatly, and the manufacturing cost of this machine is also lower.
Owing to adopt low power, big air quantity to make middle part wind-force high wind be evenly distributed, the grog lumpiness is little, Here it is is difficult to form CO blast and other spray kiln accident, and it is easy and simple to handle, safe and reliable, be the desirable firing process equipment of middle-size and small-size shaft kiln cement plant, especially be fit to the firing process technological transformation of existing ordinary shaft kiln factory.
As it is as follows to scheme each list of parts:
(1) outer cover of steel plate;
(2) thermocouple;
(3) mouth of pipe;
(4) grey iron block;
(5) discharging ladder tower castor;
(6) concrete;
(7) quiet broken liner plate;
(8) receiving hopper;
(9) tremie pipe;
(10) the vertical shaft airduct of holding concurrently;
(11) drive;
(12) magazine;
(13) blast pipe;
(14) blast cap.
The figure medium scale is 1: 50
Claims (6)
1, a kind of energy-saving mechanized vertical kiln for cement manufacturing process equipment, it is characterized in that: the ratio of height to diameter of kiln body was less than 2.5: 1
2, mechanized cement shaft kiln as claimed in claim 1 is characterized in that blasting that wind in the kiln is single enters from tower castor top;
3, mechanized cement shaft kiln as claimed in claim 1 is characterized in that in the tower castor or the tower castor is provided with airduct expansion mouth
4, mechanized cement shaft kiln as claimed in claim 1 is characterized in that cat head is provided with tapered blast cap device, and there is a hole at the center
5, mechanized cement shaft kiln as claimed in claim 1 is characterized in that the vent riser lower end in entering kiln is provided with magazine
6, mechanized cement shaft kiln according to claim 1, what it is characterized in that quiet broken liner plate and tower castor faces upward angle less than 75 °
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89109323 CN1021364C (en) | 1989-12-21 | 1989-12-21 | Energy-saving mechanized vertical kiln for cement manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89109323 CN1021364C (en) | 1989-12-21 | 1989-12-21 | Energy-saving mechanized vertical kiln for cement manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1042602A true CN1042602A (en) | 1990-05-30 |
| CN1021364C CN1021364C (en) | 1993-06-23 |
Family
ID=4857954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89109323 Expired - Fee Related CN1021364C (en) | 1989-12-21 | 1989-12-21 | Energy-saving mechanized vertical kiln for cement manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021364C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937828A (en) * | 2019-12-15 | 2020-03-31 | 怀化鑫崀峰钙业有限公司 | Lime shaft kiln |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416202C (en) * | 2005-04-06 | 2008-09-03 | 缪建通 | Large diameter energy-saving mechanical vertical kiln |
-
1989
- 1989-12-21 CN CN 89109323 patent/CN1021364C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937828A (en) * | 2019-12-15 | 2020-03-31 | 怀化鑫崀峰钙业有限公司 | Lime shaft kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1021364C (en) | 1993-06-23 |
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| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |