CN201144193Y - Gas lime vertical kiln and energy saving system - Google Patents
Gas lime vertical kiln and energy saving system Download PDFInfo
- Publication number
- CN201144193Y CN201144193Y CNU2007203121003U CN200720312100U CN201144193Y CN 201144193 Y CN201144193 Y CN 201144193Y CN U2007203121003 U CNU2007203121003 U CN U2007203121003U CN 200720312100 U CN200720312100 U CN 200720312100U CN 201144193 Y CN201144193 Y CN 201144193Y
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- kiln
- brick
- nozzles
- gas
- pipe
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- 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
Abstract
The utility model relates to a vertical kiln of fuel gas lime and an energy saving thereof; the utility model needs to the solve the problems of complex thermal utilizing process and higher cost for one aspect and needs to solve the problem of being incapable of detecting the temperature of a part of the vertical kiln during the combustion process for another aspect; the upper surface of the body (2) of the kiln of the utility model is provided with a hopper (8) and the lower surface is provided with an ash discharge device (1); a plurality of burners are arranged on the body of the kiln; the utility model is characterized in that the burners are fuel gas burners (3); an upper pumping crossbeam tube and a lower pumping crossbeam tube (7), (4) that are provided with through holes are arranged in the cavity of the kiln.
Description
Technical field
The utility model relates to lime calcining equipment, specifically is a kind of gas lime vertical kiln and energy conserving system thereof.
Background technology
A kind of lime vertical kiln is arranged in the prior art, above the kiln body hopper is arranged, ash discharging gear is arranged below, kiln is provided with some burners on one's body, and kiln chamber inner filling material stone is produced, as Chinese patent literature CN2767444Y disclosed " internally heated type limestone kiln ".Hot gas in this type of shaft kiln kiln is generally discharged from the kiln top.Because of composition complexity in the hot gas, higher to its cost that carries out thermal utilization.
Common lime shaft kiln fuel and ore together add shaft kiln, contact fully between fuel and ore.Because solid fuel generally contains harmful elements such as lead, arsenic, the lime quality that the burning degree comes out is influenced bigger, has limited its use in food, medicine trade.Moreover in the shaft kiln combustion processes, partial temperature can't be surveyed, and easily makes part lime old partially, influences the activity of lime, and reduces the whiteness of product.
The utility model content
The utility model technical issues that need to address are, the one, and thermal utilization process complexity, cost problem of higher, the 2nd, the problem that the partial temperature of shaft kiln can't be surveyed in the combustion processes.
Gas lime vertical kiln of the present utility model has hopper above the kiln body, and ash discharging gear is arranged below, and kiln is provided with some burners on one's body, it is characterized in that described burner is a gas burner; The crossbeam pipe of bleeding that upper and lower two band through holes are arranged in the kiln chamber.Use combustion gas (liquefied gas, natural gas or coal gas etc.) burner can effectively overcome solid fuel and ore contacts with each other the problem that influences the lime quality.Bleed the crossbeam pipe that structure is set is very simple, it makes the part high-temperature flue gas that is about to emptying in the kiln chamber be utilized by pumpback, to improve the temperature of combustion air, has reduced scattering and disappearing of heat; Also, help grasping and adjusting kiln chamber response situation for to being provided convenience by the temperature survey of pumpback hot gas.
The crossbeam tube section of bleeding can be circular or square, and as preferably, the crossbeam tube section of bleeding is the pentagon on pinnacle or the semicircle on pinnacle, and described through hole aperture is accumulated on the crossbeam pipe of bleeding and stopped up through hole to prevent to expect the piece powder down.
As preferably, two through holes of bleeding the crossbeam pipe are two respectively, concentrate near the medullary ray.Because the temperature in centre, kiln chamber is the highest relatively, effect is also apparent in view like this.
Through test, the two preferred settings of bleeding the crossbeam pipe are, on the crossbeam pipe of bleeding be 3.5～4m apart from the kiln top, lower pumping crossbeam pipe (also claim high temperature bleed crossbeam pipe) is 3～4m apart from gas burner.
Its structure of described gas burner is, the shaft kiln wall has through hole, is embedded with the nozzles brick of band horn chamber in the through hole, and the top of nozzles brick is the combustion chamber crown, and the below of nozzles brick is a refractory masonry; Gas line is fixed in the blast main by two valves, and its mouth of pipe exceeds the air mouth of pipe, and inserts the osculum of nozzles brick horn chamber together; Nozzles brick, gas line and blast main are positioned at the outer part of shaft kiln wall and are surrounded by thermal insulation layer outward.Evidence, the combustion efficacy of this gas burner is fairly good.
As preferably, gas burner is provided with thermopair, can show by temperature to control whole kiln combustion case, thereby guarantee that lime quality better, the energy consumption produced are low.
Lime vertical kiln energy conserving system of the present utility model has hopper above the kiln body, has ash discharging gear, Yao Bishang to be provided with some gas burners below, it is characterized in that having in the kiln chamber upper and lower two band through holes bleed the crossbeam pipe and; The high temperature crossbeam pipe of bleeding is connected with gas burner through high temperature draught fan; On the crossbeam pipe of bleeding be connected with the hot import of heat exchanger, outlet is connected with last induced draft fan; The cold import of heat exchanger be connected, the outlet be connected with gas burner.
In the native system, from bleed the heat of hot gas of crossbeam pipe absorbed by heat exchanger after just emptying, then directly infiltrate mutually into gas burner from the bleed hot gas of crossbeam pipe of high temperature with fuel, fresh air, the effect of its Btu utilization is tangible.
Lime vertical kiln of the present utility model is simple and reasonable, and the system that is formed has good energy-conserving effect, and the kiln cavity temperature is measured characteristics such as convenient, and the lime quality better that it is fired can be used for fields such as medicine, food, daily use chemicals.
Description of drawings
Fig. 1 is the utility model gas lime vertical kiln structure and system schematic; Among the figure, 1-ash discharging gear, 2-kiln body, 3-gas burner, 4-lower pumping crossbeam pipe, the 5-lift pot, 6-promotes track, the crossbeam pipe of bleeding on the 7-, 8-feeding device, 9-gas blower, the 10-heat exchanger, the last induced draft fan of 11-, 12-high temperature draught fan, the 13-tensimeter, 14-regulator, 15-under meter, the 16-strainer, 17-gasifier, 18-fuel gas source.
Fig. 2 is the crossbeam pipe through-hole position view (is example with lower pumping crossbeam pipe) of bleeding.
Fig. 3 is the crossbeam pipe cross sectional representation of bleeding.
Fig. 4 is the enlarged diagram of gas burner 3; 3-1 combustion chamber crown among the figure, 3-2 nozzles brick, 3-3 refractory masonry, 3-4 grommet, 3-5 lighter for ignition, 3-6 blast main, 3-7 gas line, 3-8 thermopair, 3-9 thermal insulation layer.
Fig. 5 is that synoptic diagram is looked on Fig. 4 left side.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Embodiment.See Fig. 1, this routine gas lime vertical kiln divides four major parts.
One, kiln body part: body 2 high 22m, shell are that the steel structure is welded, and liner is that refractory brick and lagging material are built by laying bricks or stones and formed, and ash discharging gear 1 is arranged at kiln body bottom.Kiln is provided with 6 gas burners 3 on one's body and evenly is periphery.The structure of gas burner 3 is seen Fig. 4 and Fig. 5, and the shaft kiln wall has through hole, is embedded with the nozzles brick 3-2 of band horn chamber in the through hole, and the top of nozzles brick is combustion chamber crown 3-1, and the below of nozzles brick is refractory masonry 3-3; Gas line 3-7 is fixed in the blast main 3-6 by two valve 3-4, and its mouth of pipe exceeds the air mouth of pipe, and inserts the osculum of nozzles brick 3-2 horn chamber together; Nozzles brick, gas line and blast main are positioned at the outer part of shaft kiln wall and are surrounded by thermal insulation layer 3-9 outward; Thermopair 3-8 passes nozzles brick 3-2 and probes into the combustion chamber.
Mix at nozzles brick 3-2 place from the combustion gas of two pipes and combustion air, and in the cavity internal combustion in nozzles brick the place ahead; Gas flow and combustion air flow can be regulated respectively by the valve that is located on the pipeline, to obtain required combustion power and temperature of combustion.Fire hole 3-5 makes igniting usefulness, double as glory hole.This burner can fully adapt to the burning of this shaft kiln, and is easy to adjust, easy to control, thereby guarantees the operational excellence of shaft kiln.
Two, hot gas pumpback part: the high temperature crossbeam pipe 4 of bleeding is connected with burner 3 through high temperature draught fan 12; On the crossbeam pipe 7 of bleeding be connected with the hot import of heat exchanger 10, outlet is connected with last induced draft fan 11; The cold import of heat exchanger 10 is connected with gas blower 9, and outlet is connected with burner 3.
Three, combustion gas part: fuel gas source 18 enters burner 3 through gasifier 17-strainer 16-under meter 15-regulator 14-tensimeter 13 successively.
Four, feeding section: there is feeding device 8 on the kiln top, and (applicant is designed to through using for many years, exploring, advantages such as it is intact to have sealing, and equipment failure is few are used with the kiln body, energy-saving effect is remarkable), lift pot 5, lifting track 6 are that steel part is welded to form.
The working process of the utility model shaft kiln is:
1, Wingdale adds lift pot 5, rises to kiln top feeding device 8 by promoting track 6, because special sealed structure can not allow extraneous air sneak into, so that guarantee concentration of carbon dioxide in the kiln.Bottom ash discharging gear 1 is the timing automatic ash discharge, the lime that can control out like this, thus control adds the amount of ore, and it is improper to have eliminated because of artificial control, moves unfavorable factors such as undesired and make whole kiln.
2, combustion gas part is come out to enter burner 3 at last through regulator 14/ tensimeter 13 again under meter 15 (so that adding up used quantity) again to strainer 16 again after gasifier gasification 17 from Bottle gas 18 and is burnt, and incendiary pressure can need be regulated by producing.
3, bleed warm air (about 200 ℃ of temperature) that high-temperature gas (about 600 ℃ of flue-gas temperature) that crossbeam pipe 4 extracted out by high temperature draught fan 12 and front come out from heat exchanger 10 of high temperature is mixed into burner by a certain percentage and burns in the middle of the kiln, heat is fully utilized, can save energy more than 10%, produce good benefit.
Draw (about flue-gas temperature 500 ℃) by induced draft fan 11 from the kiln top through the flue gas of over-heat-exchanger 10 and feed carbonization (particular location is after induced draft fan 11), the size of air inducing amount has considerable influence to the quality and the concentration of carbon dioxide of ash, be the key that guarantees that kiln runs well, thereby the air quantity of induced draft fan adopt variable frequency adjustment control.
Claims (10)
1, a kind of gas lime vertical kiln has hopper (8) above the kiln body (2), ash discharging gear (1) is arranged below, and kiln is provided with some burners on one's body, it is characterized in that described burner is gas burner (3); Bleed crossbeam pipe (7), (4) that upper and lower two band through holes are arranged in the kiln chamber.
2, lime vertical kiln according to claim 1 is characterized in that the described crossbeam tube section of bleeding is the pentagon on pinnacle or the semicircle on pinnacle, and described through hole aperture down.
3, lime vertical kiln according to claim 2 is characterized in that described two through holes of bleeding the crossbeam pipe are two respectively, concentrates near the medullary ray.
4, according to claim 1 or 2 or 3 described lime vertical kilns, the crossbeam pipe (7) that it is characterized in that bleeding on described is 3.5～4m apart from the kiln top, and lower pumping crossbeam pipe (4) is 3～4m apart from gas burner (3).
5, according to claim 1 or 2 or 3 described lime vertical kilns, it is characterized in that its structure of described gas burner is, the shaft kiln wall has through hole, be embedded with the nozzles brick (3-2) of band horn chamber in the through hole, the top of nozzles brick is combustion chamber crown (3-1), and the below of nozzles brick is refractory masonry (3-3); Gas line (3-7) is fixed in the blast main (3-6) by two valves (3-4), and its mouth of pipe exceeds the air mouth of pipe, and inserts the osculum of nozzles brick (3-2) horn chamber together; Nozzles brick, gas line and blast main are positioned at the outer part of shaft kiln wall and are surrounded by thermal insulation layer (3-9) outward.
6, lime vertical kiln according to claim 4, it is characterized in that its structure of described gas burner is, the shaft kiln wall has through hole, is embedded with the nozzles brick (3-2) of band horn chamber in the through hole, the top of nozzles brick is combustion chamber crown (3-1), and the below of nozzles brick is refractory masonry (3-3); Gas line (3-7) is fixed in the blast main (3-6) by two grommets of two grommets (3-4) (3-4), and its mouth of pipe exceeds the air mouth of pipe, and inserts the osculum of nozzles brick (3-2) horn chamber together; Nozzles brick, gas line and blast main are positioned at the outer part of shaft kiln wall and are surrounded by thermal insulation layer (3-9) outward.
7,, it is characterized in that described gas burner (3) is provided with thermopair (3-8) according to claim 1 or 2 or 3 described lime vertical kilns.
8, lime vertical kiln according to claim 4 is characterized in that described gas burner (3) is provided with thermopair (3-8).
9, lime vertical kiln according to claim 5 is characterized in that (3) are provided with thermopair (3-8) on the described gas burner.
10, a kind of as claim 1 or 2 or 3 described lime vertical kiln energy conserving systems, hopper (8) is arranged above the kiln body (2), ash discharging gear (1) is arranged below, and Yao Bishang is provided with some gas burners (3), it is characterized in that having in the kiln chamber bleed crossbeam pipe (7), (4) of upper and lower two band through holes; Lower pumping crossbeam pipe (4) is connected with gas burner (3) through high temperature draught fan (12); On the crossbeam pipe (7) of bleeding be connected with the hot import of heat exchanger (10), outlet is connected with last induced draft fan (11); The cold import of heat exchanger (10) be connected, the outlet be connected with gas burner (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203121003U CN201144193Y (en) | 2007-12-27 | 2007-12-27 | Gas lime vertical kiln and energy saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203121003U CN201144193Y (en) | 2007-12-27 | 2007-12-27 | Gas lime vertical kiln and energy saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144193Y true CN201144193Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203121003U Expired - Lifetime CN201144193Y (en) | 2007-12-27 | 2007-12-27 | Gas lime vertical kiln and energy saving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144193Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092967B (en) * | 2009-12-15 | 2012-12-26 | 陈巨军 | Energy-saving and environmentally-friendly automatic lime shaft kiln |
| CN110156351A (en) * | 2019-05-23 | 2019-08-23 | 江苏华冶钙业有限公司 | A kind of temperature control system of calcium oxide calcining furnace |
-
2007
- 2007-12-27 CN CNU2007203121003U patent/CN201144193Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092967B (en) * | 2009-12-15 | 2012-12-26 | 陈巨军 | Energy-saving and environmentally-friendly automatic lime shaft kiln |
| CN110156351A (en) * | 2019-05-23 | 2019-08-23 | 江苏华冶钙业有限公司 | A kind of temperature control system of calcium oxide calcining furnace |
| CN110156351B (en) * | 2019-05-23 | 2021-07-16 | 江苏华冶钙业有限公司 | Temperature control system of calcium oxide calcining furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG TIANSHI NANOTECHNOLOGY CO., LTD. Free format text: FORMER NAME: TIANSHI CALCIUM CARBONATE CO., LTD., JIANDE CITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311607, Zhejiang province Jiande foreign Creek Street foreign Village Patentee after: TIANSHI CALCIUM CARBONATE CO., LTD. Address before: 311607, Zhejiang province Jiande foreign Creek Street foreign Village Patentee before: Jiande Tianshi Calcium Carbonate Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 311606, Zhejiang Province, Jiande City, the next town, the next village on the Village Creek natural village Patentee after: TIANSHI CALCIUM CARBONATE CO., LTD. Address before: 311607, Zhejiang province Jiande foreign Creek Street foreign Village Patentee before: TIANSHI CALCIUM CARBONATE CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |