CN106338200A - Method for producing quick lime through brickmaking waste heat - Google Patents
Method for producing quick lime through brickmaking waste heat Download PDFInfo
- Publication number
- CN106338200A CN106338200A CN201610737602.4A CN201610737602A CN106338200A CN 106338200 A CN106338200 A CN 106338200A CN 201610737602 A CN201610737602 A CN 201610737602A CN 106338200 A CN106338200 A CN 106338200A
- Authority
- CN
- China
- Prior art keywords
- kiln
- quick lime
- kiln car
- waste heat
- section
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a method for producing quick lime through brickmaking waste heat. Green bricks are stacked on a kiln car and sequentially pushed into a tunnel kiln, the kiln car enters a green brick preheating segment after being dried through hot air in a moisture eliminating segment of the tunnel kiln, and limestone with the grain size ranging from 5 cm to 20 cm is paved to the top of a green brick stack from a kiln crown feeding hole; the temperature of a firing segment ranges from 900 DEG C to 1,200 DEG C, the standing time ranges from 2 h to 4 h, and the kiln car enters a cooling segment; and the kiln car comes out of the kiln after being cooled. According to the method for producing the quick lime through the brickmaking waste heat, a certain quantity of quick lime can be produced through the brick firing waste heat while the brick yield is not decreased. Heat energy losses are reduced, product varieties are increased, economic benefits are improved, and each kiln car can produce 1.8 ton of quick lime every day. Meanwhile, heat energy discharge is reduced, and the environment is protected.
Description
Technical field
The present invention relates to a kind of method firing quick lime using brickmaking waste heat and with the process association of baking bricks, specially a kind of
The method producing quick lime using brickmaking waste heat.
Background technology
The a large amount of waste heats producing during baking bricks, always one of important goal of UTILIZATION OF VESIDUAL HEAT IN, energy-saving and emission-reduction, and fire
The waste heat recovery or big using all there is investment that common brick produces in particular with gangue baking red bricks, equipment takes up an area many, economy
The problems such as bad economic results, therefore, a large amount of waste heats are still discarded or are only reclaimed small part by most enterprises.Cause a large amount of of the energy
Waste.A kind of " using the method for making coal gangue brick waste heat roasting pollution-free refined lime " disclosed in Chinese patent 931108446, its
Lime stone is placed in adobe, using the heat energy during baking bricks by lime stone calcine.But its sintering procedure overlong time,
Take adobe space, affect common brick yield.Simultaneously it is desirable to be crushed to lime stone in advance less than 200mm particle diameter using disintegrating machine,
Adobe is headed in advance kiln drying 24 hours, then eject kiln and put lime stone in reserved space, then enter kiln.This side
The formula process time is long, takies adobe space, reduces the yield of brick.
Content of the invention
The deficiency existing for above-mentioned prior art, develops a kind of method that utilization brickmaking waste heat produces quick lime.
A kind of method that utilization brickmaking waste heat produces quick lime, is characterized in that: 1. piling, will be on adobe code to kiln car and suitable
Sequence pushes in tunnel cave, and kiln car is in tunnel cave moisture exhausting section through 80-100 DEG C of hot-air seasoning 8-10 hour；2. feed, kiln car enters brick
Base preheating section, paves the lime stone of 5-20cm particle diameter to adobe from kiln top charging aperture and piles up neatly top, pre- at a temperature of 400 DEG C of this section
Enter after hot 5-6 hour and burn till section；3. burn till section temperature 900-1200 DEG C, this section of time of staying 2-4 hour enters temperature descending section；④
Kiln car kiln discharge after temperature descending section stops 3-5 hour.
The method that a kind of described utilization brickmaking waste heat produces quick lime, is characterized in that on each kiln car, at least code six piles up neatly brick
Base, is provided with charging aperture corresponding with kiln car bricks hack, each adobe buttress charging 250- every time on the kiln top of tunnel cave preheating section
300km.
The method that a kind of described utilization brickmaking waste heat produces quick lime, is characterized in that being provided with and adds for tunnel cave top
The induction system of material, described induction system includes the lifting conveyer belt being obliquely installed along outside tunnel cave, in the setting of kiln top
Have and the vertical horizontal conveying belt being connected in lifting conveyer belt top, between described horizontal conveying belt and tunnel cave, windrow is installed
Frame, is provided with material toggling frame support on rickstand, and material toggling frame is articulated with material toggling frame support, and described rickstand has metering leakage
Bucket.
The method that a kind of described utilization brickmaking waste heat produces quick lime, it is characterized in that described material toggling frame is shaped as v shape,
It is provided with charging aperture, described horizontal conveying belt is placed in tunnel cave preheating section on the corresponding kiln top of lower discharge position of described V-shaped material toggling frame
Top.
The method that a kind of utilization brickmaking waste heat of the present invention produces quick lime, while not reducing brick yield, using burning
Brick waste heat can produce a number of quick lime.Decrease heat-energy losses, increased product variety, improve economic well-being of workers and staff, press
Each kiln car code 12 piles up neatly adobe, every adobe buttress plus 250 kilograms of lime stone, ash discharge 60%, 24 hours kiln discharges, then often kiln car daily may be used
Produce 1.8 tons of quick limes.Also reduce heat energy discharge simultaneously, protect environment.
Brief description
Fig. 1 is charging induction system main structure diagram；
Fig. 2 is charging induction system schematic top plan view；
Fig. 3 is that charging induction system is right regards schematic diagram.
In figure, 1- horizontal transmission motor, 2- material toggling frame, 3- funnel, 4- charging hole, 5- rickstand, 6- horizontal conveying belt, 7-
Lifting motor, 8- lifts conveyer belt, 9- piled bricks, 10- material toggling frame support, 11- lime stone, 12- kiln car, 13- tunnel cave.
Specific embodiment
The method that a kind of utilization brickmaking waste heat of the present invention produces quick lime, adobe is piled up on kiln car by the first step, each
The buttress number that kiln car is piled up, fixed depending on kiln car size, used in existing large tunnel kiln, kiln car can pile up the adobe buttress of 3x4 quantity.
Second step, the kiln car having piled up adobe is pushed tunnel cave, and initially enter is moisture exhausting section, and this section has 80-100 DEG C little through 8-10
When, adobe is dehydrated to 3-5% wherein hot blast, and now adobe weight capacity greatly increases.Kiln car subsequently enters preheating section,
This section of tunnel cave top is provided with and the adobe buttress corresponding charging aperture of spacing on kiln car, has also set up ore deposit at tunnel cave top simultaneously
Material induction system, by this induction system by particle diameter the lime stone for 5-20cm pave adobe buttress top, each adobe buttress on
250 kilograms about of charging, about 400 DEG C of this section of temperature, after preheated 5-6 hour, kiln car enters burning zone, high through 900-1200 DEG C
Temperature, maintains 2-4 hour, and adobe becomes brick, and lime stone is also sintered into lime.During this period, the sulphur one of the spilling in spoil adobe
Part is absorbed by quick lime, decreases the destruction to environment.Kiln car subsequently enters temperature descending section, through 3-5 hour air forced cooling,
Hot-air is admitted to preheating section or moisture exhausting section, kiln discharge after the temperature drop of brick and quick lime.Brick will be become to place respectively with quick lime.
For improve production efficiency, charging limestone induction system is provided with tunnel cave.
As Fig. 1-3, the preheating section top of tunnel cave 13 is provided with rickstand 5, horizontal conveying belt 6 is arranged on rickstand 5
Top, has been driven horizontal conveying belt to work, there are four material togglings symmetrical two-by-two horizontal conveying belt 6 both sides by horizontal transmission motor 1
Frame support 10 is fixed on rickstand 5, the material toggling frame 2 of one v font of installation on each pair material toggling frame support, two of material toggling frame 2
Pin is hingedly connected on the material toggling frame support 10 of both sides, and the horizontal position of described material toggling frame 2 is working position, in the both sides of material toggling frame 2
Funnel 3 is had to be arranged on rickstand 5, the charging hole at the corresponding tunnel cave top of feed opening of funnel.Lifting conveyer belt 8 is installed on tunnel
The outside of road kiln 13, tilts upward to the surface of horizontal conveying belt 6 feeding end side, the two is effectively connected, by lifting motor
7 drive it to be passed up.There is the charging hole 4 corresponding with funnel 3 at tunnel cave 13 top, there is the kiln car transporting piled bricks 9 inside
12.
When system works, open horizontal transmission motor 1 and lifting motor 7 drives horizontal conveying belt 6 and lifting conveyer belt 8 same
When work, material toggling frame 2 was fallen on horizontal conveying belt 6, its top is towards contrary with horizontal conveying belt 6 direction of transfer.By stone
Lime stone 11 is placed on lifting conveyer belt 8, and lime stone 11 is first delivered on horizontal conveying belt 6 by lifting conveyer belt 8, in horizontal conveying belt
It is allocated on the rickstand 5 on both sides by material toggling frame 2 on 6, enter in tunnel cave 13 through the funnel 3 on rickstand, charging hole 4, fall
Piled bricks 9 top on kiln car 12, with colliery wastes brick common backed.Multiple material toggling framves are set and funnel can make lime stone 11 uniform
Fall on piled bricks 9.
Described horizontal conveying belt can carry out feeding operation across several tunnel caves.
Claims (4)
1. a kind of method that utilization brickmaking waste heat produces quick lime, is characterized in that: 1. piling, by adobe code to kiln car and order
Push in tunnel cave, kiln car is in tunnel cave moisture exhausting section through 80-100 DEG C of hot-air seasoning 8-10 hour；2. feed, kiln car enters adobe
Preheating section, paves the lime stone of 5-20cm particle diameter to adobe from kiln top charging aperture and piles up neatly top, preheat at a temperature of 400 DEG C of this section
Enter after 5-6 hour and burn till section；3. burn till section temperature 900-1200 DEG C, this section of time of staying 2-4 hour enters temperature descending section；4. kiln
Car kiln discharge after temperature descending section stops 3-5 hour.
2. the method that a kind of utilization brickmaking waste heat according to claim 1 produces quick lime, is characterized in that on each kiln car
At least code six buttress adobe, is provided with charging aperture corresponding with kiln car bricks hack on the kiln top of tunnel cave preheating section, and each adobe is piled up neatly
Charging 250-300km every time.
3. the method that a kind of utilization brickmaking waste heat according to claim 1 and 2 produces quick lime, is characterized in that being provided with use
In the induction system of tunnel cave top-feed, the lifting that described induction system includes being obliquely installed along outside tunnel cave (13) passes
Send band (8), be provided with kiln top and lift the vertical horizontal conveying belt (6) being connected in conveyer belt top, described horizontal conveying belt
(6) rickstand (5) is installed and tunnel cave (13) between, material toggling frame support (10), material toggling frame are provided with rickstand (5)
(2) it is articulated with material toggling frame support (10), described rickstand (5) has measuring hoper (3).
4. the method that a kind of utilization brickmaking waste heat according to claim 3 produces quick lime, is characterized in that described material toggling frame
(2) be shaped as v shape shape, the corresponding kiln top of lower discharge position of described V-shaped material toggling frame is provided with charging aperture, described horizontal transmission
Band is placed in tunnel cave preheating section top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610737602.4A CN106338200A (en) | 2016-08-29 | 2016-08-29 | Method for producing quick lime through brickmaking waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610737602.4A CN106338200A (en) | 2016-08-29 | 2016-08-29 | Method for producing quick lime through brickmaking waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106338200A true CN106338200A (en) | 2017-01-18 |
Family
ID=57823163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610737602.4A Pending CN106338200A (en) | 2016-08-29 | 2016-08-29 | Method for producing quick lime through brickmaking waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106338200A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777342A (en) * | 2020-07-18 | 2020-10-16 | 临澧鑫众钙业有限公司 | Process for firing lime by using coal gangue |
| CN111891674A (en) * | 2020-07-22 | 2020-11-06 | 合肥佳安建材有限公司 | Green brick transfer trolley positioning device for sludge brick making production |
| CN113357908A (en) * | 2021-06-03 | 2021-09-07 | 周天津 | Baked brick tunnel kiln and method for treating fly ash by using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089927A (en) * | 1993-01-19 | 1994-07-27 | 芙蓉矿务局 | Utilize the method for making coal gangue brick waste heat roasting pollution-free refined lime |
| CN102617053A (en) * | 2012-03-05 | 2012-08-01 | 太原钢铁(集团)有限公司 | Manufacturing technology of ultra-low carbon active lime |
| CN102659157A (en) * | 2012-04-13 | 2012-09-12 | 曲玉珠 | Method for producing calcium oxide by use of calcite |
| CN203454723U (en) * | 2013-08-29 | 2014-02-26 | 郑州鹏泰高新建材制品有限公司 | Energy-saving tunnel kiln used for gangue sintered brick production |
| CN204438761U (en) * | 2015-01-11 | 2015-07-01 | 介休市宇宙建材有限责任公司 | A kind of ores lifting system for tunnel cave top-feed |
-
2016
- 2016-08-29 CN CN201610737602.4A patent/CN106338200A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089927A (en) * | 1993-01-19 | 1994-07-27 | 芙蓉矿务局 | Utilize the method for making coal gangue brick waste heat roasting pollution-free refined lime |
| CN102617053A (en) * | 2012-03-05 | 2012-08-01 | 太原钢铁(集团)有限公司 | Manufacturing technology of ultra-low carbon active lime |
| CN102659157A (en) * | 2012-04-13 | 2012-09-12 | 曲玉珠 | Method for producing calcium oxide by use of calcite |
| CN203454723U (en) * | 2013-08-29 | 2014-02-26 | 郑州鹏泰高新建材制品有限公司 | Energy-saving tunnel kiln used for gangue sintered brick production |
| CN204438761U (en) * | 2015-01-11 | 2015-07-01 | 介休市宇宙建材有限责任公司 | A kind of ores lifting system for tunnel cave top-feed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777342A (en) * | 2020-07-18 | 2020-10-16 | 临澧鑫众钙业有限公司 | Process for firing lime by using coal gangue |
| CN111891674A (en) * | 2020-07-22 | 2020-11-06 | 合肥佳安建材有限公司 | Green brick transfer trolley positioning device for sludge brick making production |
| CN113357908A (en) * | 2021-06-03 | 2021-09-07 | 周天津 | Baked brick tunnel kiln and method for treating fly ash by using same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170118 |