CN201620107U - Multi-chamber lime kiln - Google Patents
Multi-chamber lime kiln Download PDFInfo
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- CN201620107U CN201620107U CN200920103778XU CN200920103778U CN201620107U CN 201620107 U CN201620107 U CN 201620107U CN 200920103778X U CN200920103778X U CN 200920103778XU CN 200920103778 U CN200920103778 U CN 200920103778U CN 201620107 U CN201620107 U CN 201620107U
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- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 31
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 31
- 239000004571 lime Substances 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 82
- 238000001354 calcination Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 41
- 238000002485 combustion reaction Methods 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 30
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 62
- 239000002912 waste gas Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003546 flue gas Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004449 solid propellant Substances 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 abstract description 19
- 239000006028 limestone Substances 0.000 abstract description 19
- 239000002918 waste heat Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 16
- 210000000038 chest Anatomy 0.000 description 10
- 239000004575 stone Substances 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
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Abstract
The utility model provides a multi-hearth lime kiln comprising a rectangular or near-rectangular kiln body, a feeding system, a discharging system, a combustion system, an air supply system and an exhaust emission system, wherein the kiln body consists of a preheating zone, a calcining zone and a cooling zone from top to bottom; the kiln body is internally divided into two or three stock bins by partitions; the stock bins at two sides of the calcining zone are provided with nozzles, the partitions are provided with air holes; the outlet of a blower is connected to the cooling air inlet at the lower part of the kiln body and the smoke outlets of all the stock bins at the top of the kiln; and the air at the calcining zone has forward flow, adverse current and transverse flow, the high-temperature air is fully and evenly contacted with limestone material, the quality of the calcined lime is good, and the limestone material of big and small particles can be calcined simultaneously. After cooling the lime product, the air is directly used as combustion air of the calcining zone, and the lime kiln has low equipment cost and high waste heat use ratio, saves fuel and reduces energy consumption.
Description
Technical field
The utility model relates to a kind of device of calcining materials, relates in particular to a kind of lime kiln device of many thoraxes formula kiln structure.
Background technology
Lime is important material of construction, also is important source material metallurgical, chemical field, and prior art is to be raw material with rhombspar, Wingdale, adopts the shaft furnace lime kilning of band burning beam.The deficiency of process is like this: furnace gas mobile direction is opposite with building stones mobile direction in the shaft furnace, and promptly building stones move from the top down, and furnace gas flows from bottom to top, the air resistance of building stones is big, and the gas segregation phenomenon appears in furnace pressure height easily, it is inhomogeneous to cause Wingdale to be heated, and influences quality product.The applicant the patent No. be the utility model patent of ZL200320111077.3 disclose a kind of in the external heating type limestone kiln, the firing system of this limestone kiln is provided with combustion tube of furnace beam and peripheral burner, combustion tube of furnace beam is provided with burner (burner), solved the distribution of calcining zone flame and heat effectively, improved efficiency of combustion, but combustion tube of furnace beam needs not only to slattern some heats, and increased equipment cost and process cost with heat-eliminating medium cooling beam body in the course of the work.
" up-to-date lime production technology management and anti-pollution measure operation practice pandect " that Jilin electronic publishing society publishes introduced a kind of cross-flow type shaft furnace (142～150 pages).This shaft furnace is made up of raw material supplying equipment, body of heater, combustion unit, heat exchanger, waste gas dedusting device.The characteristics of this technology are that heating chamber and calcining zone separate, and the flue gas that fuel produces after combustion chambers burn enters calcining zone stone layer is calcined; At the high-temperature hot air of cooling zone cool lime by interchanger and combustion air heat exchange.This technology and device thereof can be calcined less limestone material because Wingdale does not contact with flame, are difficult for producing burning, have improved quality product.But this technology still has its deficiency: 1. special combustion chamber need be arranged, and not easy to operate; 2. utilize the heat of warm air after the cool lime by interchanger, efficiency of combustion is low, has increased facility investment and process cost.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the utility model provides a kind of many thoraxes formula lime kiln device, adopt the multi-cavity type kiln structure, gas flows by the multiple flow direction in the kiln body, gas and limestone material full contact, even, and the lime quality of production is good, can calcine macrobead and short grained Wingdale simultaneously, make full use of the heat of lime product process of cooling, save the energy, improve the calcining effect.
Many thoraxes formula limestone kiln that the utility model provides comprises rectangle or accurate rectangle kiln body, and feed system, discharge system, firing system, air feed system and exhaust emission system are preheating zone, calcining zone and cooling zone from the top down in the kiln body.Be divided into two or more feed bins by partition wall in the described kiln body, each feed bin top is provided with waste gas outlet, and waste gas outlet is connected with exhaust emission system; At calcining zone, the both sides bin wall is provided with burner, and partition wall is provided with pore.Blower export is connected to the bottom cool air inlet of kiln body and the exhanst gas outlet of each feed bin.
To be described partition wall comprise that with the top of kiln body preheating zone and calcining zone are divided into two kiln storehouses to a kind of scheme of the utility model, merges into a feed bin at cooling zone kiln body, and cooling air intake is positioned at the bottom of kiln body.
Of the present utility model another is chosen as, on the intravital partition wall of kiln to opening for feed down to discharge port, the cavity of whole kiln is divided into two kiln storehouses, the kiln wall and the midfeather of two feed bins of described cooling zone are provided with pore, pore on the kiln wall is communicated with gas extractor, is provided with the combustion air inlet at calcining zone both sides feed bin; The gas extractor of described cooling zone both sides feed bin is connected to the outlet and/or the combustion air inlet of gas blower.
Of the present utility modelly further be chosen as, epimere is divided into three parts by the twice partition wall with the cavity of kiln in the described kiln body, two cavitys in the outside are the fines storehouse, the intermediary cavity is the coarse fodder storehouse, the width in fines storehouse is 0.2～10 times of coarse fodder storehouse width, and the fines storehouse of both sides is provided with the combustion air inlet.The cavity of kiln body hypomere merges into a feed bin or is divided into two feed bins by a minute fluid, and the cross section on described minute fluid top is taper.The Yao Bi of two feed bins and divide fluid to be provided with pore, the pore on the kiln wall is communicated with gas extractor, and gas extractor is connected to the outlet of gas blower by T-valve, and is connected to combustion air by T-valve and enters the mouth.
The kiln wall of described calcining zone both sides feed bin is provided with 1～10 row's burner, 1～50 burner of every row.Described burner is geseous fuel burner, liquid fuel burner or solid fuel burner, or the combination of above-mentioned two or three burner.Allow building stones to mix the back with carbonaceous fuel and add in the kiln from feed system, wherein carbonaceous fuel can be used as all or part of fuel source in limestone kiln.Allow building stones to mix the back with carbonaceous fuel and add in the kiln from feed system, wherein carbonaceous fuel can be used as all or part of fuel source in limestone kiln.
The partition wall of cutting apart coarse fodder storehouse and fines storehouse in kiln body preheating zone and the calcining zone; and the branch fluid of two cooling feed bins or three cooling feed bins is cut apart in kiln body bottom; can adopt multiple material and structure; composite structure as metallic substance and refractory materials; or all be refractory materials; if adopt metallic substance sandwich structure, heat-resisting protective is done with certain thickness refractory materials in the metal sandwich outside.With partition wall and/or divide fluid to hang on the kiln body or be supported on the basis of body of heater, cool off with cooling air or other medium in the metallic substance interlayer, if with air-cooled, a cooling partition wall and a part of dividing the fluidic warm air to can be used as combustion air feed and participate in burning in the kiln.
Described cooling zone cooling air can infeed from cooling feed bin bottom, along the upwards mobile cooling material of cooling feed bin, cooled warm air enters calcining zone and participates in burning, also can make air at cooling feed bin transverse flow cooling material by pore on the cooling feed bin kiln wall and gas extractor, warm air behind the cooling material is delivered to the combustion air inlet of calcining zone by pipeline and T-valve.
The pore transverse flow that the flue gas that described calcining zone burning produces passes partition wall, discharge by each kiln top waste gas outlet timesharing again, the working order of three preheating zones can be two exhausts, an air inlet, work commutated after for some time, air inlet change exhaust into, deflated changes air inlet into, also can be two and enter cooling air that an exhaust commutated after work for some time.
The burner of described calcining zone both sides can be taken over job, and also can work and incendiary intensity difference simultaneously, and described cooling zone is divided into two feed bins by a minute fluid, when air feeds at the bottom of the storehouse, can alternately at the bottom of each storehouse, feed, also can at the bottom of two storehouses, feed simultaneously, and the air quantity difference that feeds.
Described limestone kiln is used to calcine bulk or granulous Wingdale, rhombspar material; Also be used to calcine multiple calcined mixed piece particulate matter, Wingdale or rhombspar that described mixing pieces particulate matter is the carbon containing piece.Piece particulate materials in three feed bins on described kiln top is a same particle sizes, or according to material properties, the working condition of kiln is selected different grain size for use by the difference in storehouse, perhaps varigrained combination.
Compared with prior art, the utility model has the advantages that: 1. following current, adverse current and crossing current are arranged at calcining zone gas, high-temperature gas and limestone material full contact, even, the lime quality of production is good, avoids burning and gives birth to burning.2. be provided with a plurality of cavitys in preheating zone and calcining zone, if two fines storehouses and a coarse fodder storehouse can be calcined large and small granule materials simultaneously.3. the high-temperature gas behind the cooling zone cool lime product makes full use of waste heat as the calcining zone combustion air, and fuel saving reduces energy consumption.4. each feed bin replaces discharging waste gas, makes gas fume after burning fully heat the limestone material that has just entered the kiln body in the preheating zone, and thermal utilization is complete.5. directly as combustion air, the direct preheating Wingdale of the flue gas after the calcining without heat-exchange equipment, can be saved facility investment, the utilization rate of waste heat height to the warm air of cool lime product.
Description of drawings
Fig. 1 is many thoraxes of the utility model formula limestone kiln schematic flow sheet;
Fig. 2 is the utility model another program schematic flow sheet;
Fig. 3 is the utility model third party case schematic flow sheet;
Wherein:
1-hopper, 2-charging lock, 3-waste gas outlet, 4-kiln body, 5-preheating zone, 6-partition wall, 7-calcining zone, 8-burner, 9-pore, 10-cooling zone, 11-discharging lock, 12-outfeed belt conveyor, 13-fly-ash separator, 14-induced draft fan, 15-chimney, 16-gas blower, 17 (17a, 17b, 17c, 17d, 17e)-T-valve, 18-four-way valve, 19-divide fluid, 20-gas extractor, 21-combustion air inlet.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Many thoraxes formula described in the utility model limestone kiln as shown in Figure 1, mainly by orthogonal kiln body 4, feed system, discharge system, firing system, air feed system and exhaust emission system are formed, and are preheating zone 5, calcining zone 7 and cooling zone 10 from the top down in the kiln body.Feed system comprises feeding conveyor, hopper 1 and charging lock 2, discharge system comprises discharging lock 11 and outfeed belt conveyor 12 etc., firing system comprises fuel conduit and burner 8, air feed system comprises gas blower 16 and each by-pass valve control, and exhaust emission system comprises fly-ash separator 13, induced draft fan 14 and chimney 15.Epimere is divided into two feed bins by partition wall 6 with the cavity of kiln in the described kiln body.The kiln wall of calcining zone both sides feed bin is respectively equipped with 5 row's burners 9,15 burners of every row, and described burner is the geseous fuel burner, the fuel line is provided with valve, is used to control combustion gas and enters burner.All being provided with 3, two waste gas outlets of waste gas outlet on the top that calcining zone partition wall 6 is provided with 9, two feed bins of pore is connected with blowdown system by T-valve 17a.Kiln body 4 hypomeres merge into a feed bin at cooling zone 10.Gas blower 16 outlets are connected to the bottom of cooling zone feed bin, and another road is connected to the exhanst gas outlet 3 of two feed bins by T-valve 17b.Described partition wall 6 adds refractory materials sandwich structure for steel, hangs to be installed in the intravital top of kiln.
The process of the utility model calcined limestone is that granularity is the feed bin that the translateral hopper 1 of the Wingdale of 30mm～120mm, charging lock 2 enter both sides; Limestone material enters the calcining zone calcining at two feed bins respectively after the preheating of preheating zone, the building stones operation downwards of calcining back is confluxed and entered cooling zone 10 feed bins.Lime product in cooling zone feed bin cooling after discharging lock 11, outfeed belt conveyor 12 go out device.
Cooling air is blasted by gas blower 16, is divided into two-way through a threeway, and one the tunnel enters cooling zone 10 feed bins bottoms, and other one the tunnel enters the waste gas outlet 3 on feed bin top, both sides through T-valve 17b timesharing.When the calcining zone burner work in left side, cooling air is entered by cooling zone feed bin bottom, the lime in the cooling cooling zone feed bin.Warm air rising part after the cool lime enters kiln storehouse, left side, another part enters right side Yao Cang, the warm air that enters kiln storehouse, left side rises to the fuel combustion that sprays into burner 8 behind the calcining zone, gas fume after burning transversely flows to place, partition wall hole, transverse flow is passed the pore 9 on the partition wall 6, enter the right side feed bin, the fuel perfect combustion that the left side is imperfect combustion after next other portion of air is converged with cooling off the storehouse, flue gas continues in kiln storehouse, right side upwards to flow, arrival kiln top, a road of the waste gas outlet 3 on the logical right side of T-valve 17a this moment is opened, and another road is closed.Flue gas is through fly-ash separator, induced draft fan, chimney enters atmosphere, in this process, if the preheating zone temperature is too high, can pass through the air-supplied cooling material of T-valve 17b preheating section to the left, cooling air flows downward in the preheating zone and enters calcining zone participation burning, and flue gas together enters right side Yao Cang through partition wall pore 9.Whole kiln is worked in such a way and is commutated after for some time, right side calcining zone burner work, cooling air enters through the bottom of cooling zone feed bin, after the cooling zone cool lime, gas rises along the kiln thorax, enter behind the calcining zone fuel combustion that the burner 8 with the right side sprays into, flue gas enters the left side feed bin through the pore on the partition wall, with perfect combustion after the air mixed of left side feed bin, waste gas rises to the kiln top along kiln storehouse, left side, at this moment, the waste gas outlet 3 one tunnel in the logical left side of T-valve 17a is opened, and flue gas is discharged by the exhanst gas outlet on left side kiln top.In the process that many thoraxes firer does, in this way, the waste heat of flue gas is recycled to the preheating zone, gas blower 16 is by threeway, simultaneously freezing air is sent into cooling zone feed bin cool lime, and freezing air is sent into preheating zone cooling material, in the working process, allow the firing system of the kiln left and right sides to open simultaneously, combustion case can be regulated according to need.Whole process is controlled automatically, carries out aforesaid operations by the valve of regulating T- valve 17a, 17b and fuel conduit.
Another embodiment of the utility model as shown in Figure 2, described kiln body 4 by about two feed bins form, at calcining zone, midfeather 6 is provided with pore 9, the both sides feed bin is respectively equipped with 3 row's burners 8,20 burners of every row, and the bottom of both sides burner is provided with combustion air inlet 21.Cooling zone 10 both sides kiln walls and midfeather 6 are provided with pore 9, and pore is connected with gas extractor 20 on the kiln wall, and gas extractor is connected to gas blower 16 by T-valve 17d.Another road of gas blower is connected to kiln body top waste gas outlet 3 by T-valve 17b, and waste gas outlet is connected to blowdown system by T-valve 17a.The gas extractor of cooling zone is connected to combustion air inlet 21 by T-valve 17e, and wire is provided with valve.
Mode of operation of the present utility model is, material adds from the feed bin 1 on kiln top, through opening for feed and material lock, two kiln storehouses about entering respectively are in the working process of kiln, material moves downward gradually, through the preheating zone, calcining zone, cooling zone, lock 11 dischargings by discharging at last, product is again by outfeed belt conveyor 12 export systems.
At cooling zone, air feeds in the cooling zone by the left side gas extractor 20 of gas blower 16 from the kiln body, because the bed of material is at vertical direction height height, gas-flow resistance is big, and the horizontal direction bed of material is thin, gas-flow resistance is little, so air at cooling zone mainly based on transverse flow, by the pore on the cooling zone midfeather 9, enter the feed bin on right side, after gas transverse flows and cools off material, through right side kiln wall pore and gas extractor 20 kiln discharge bodies, finish the lime cooling, after work for some time,, make cooling air enter from the cooling zone right side again by the commutation of T-valve 17d, the pore 9 that cooling air passes on the midfeather enters kiln storehouse, left side, gas transverse is gone out by left side kiln wall pore after flowing and cooling off material, and cooling zone is worked in such a manner, and cold wind alternately infeeds from the cooling zone left and right sides, discharge from opposite side, the warm air of chilled product is delivered to calcining zone combustion air inlet by T-valve 17e and enters calcining zone participation burning.
At calcining zone, when 8 work of the burner on the calcining zone kiln wall of left side, warm air behind the cool lime product is infeeded by left side combustion air inlet 21, fuel fully burns at calcining zone and combustion air, behind the calcining materials, the flue gas transverse flow enters into right side kiln thorax through the pore 9 on the midfeather 6, in the burner working process of left side, the T-valve 17a that is communicated with left side, kiln top exhanst gas outlet one tunnel closes, and 17a opens with the path that kiln top, right side exhanst gas outlet is connected, the flue gas that enters kiln storehouse, right side travels up to the kiln top along the kiln storehouse, the kiln body is discharged in fume emission outlet 3 by the right side, again through T-valve 17a, and fly-ash separator 13, induced draft fan 14, chimney 15 is discharged atmosphere.Work in this manner after for some time, the temperature of preheating zone, right side raises gradually, after reaching certain temperature, burner 8 work on the calcining zone kiln wall of right side, the warm air of chilled product is infeeded by right side combustion air inlet 21, fuel fully burns at calcining zone and combustion air, behind the calcining materials, flue gas upwards flows and enters into left side kiln thorax through the pore 9 on the midfeather 6, in the burner working process of right side, the T-valve 17a that is communicated with Yao Ding right side exhanst gas outlet one tunnel closes, 17a opens with the path that kiln top, left side exhanst gas outlet is connected, the flue gas that enters kiln storehouse, left side travels up to the kiln top along the kiln storehouse, export 3 kiln discharge bodies by the fume emission in left side, again through T-valve 17a, fly-ash separator 13, induced draft fan 14 is to chimney 15 discharging atmosphere.
At kiln top, calcining zone right side deflated simultaneously, cooling air can pass through blower fan 16, T-valve 17b, kiln top, left side smoke inlet, be fed to preheating zone, left side cooling material, warm air behind the cooling material flows downward and enters calcining zone participation burning, and gas fume after burning enters right side Yao Cang by partition wall 6 pores 9 together, upwards flows to discharge the kiln body by right side exhanst gas outlet 3.During calcining zone left side kiln top waste discharge gas, the preheating zone on right side is the state of cooling, and principle of work is identical.
In the course of the work, allow the firing system of the kiln left and right sides to open simultaneously, combustion case can be regulated according to need.Whole process is controlled automatically, carries out aforesaid operations by the valve of regulating T-valve a, b, d, e and fuel conduit.
The utility model the 3rd embodiment as shown in Figure 3, the epimere in the described kiln body 4 is divided into three parts by twice partition wall 6 with the cavity of kiln, two cavitys in the outside are the fines storehouse, the intermediary cavity is the coarse fodder storehouse, fines storehouse width is 1.5 times of coarse fodder storehouse width.The kiln wall in fines storehouse, calcining zone both sides is respectively equipped with 5 row's burners 8,15 burners of every row, and described burner is the geseous fuel burner.At calcining zone, the top that the partition wall between coarse fodder storehouse and the fines storehouse is provided with 9,3 feed bins of pore all is provided with waste gas outlet 3, and waste gas outlet is connected with blowdown system by four-way valve 18.The cavity of kiln body 4 hypomeres is divided into two cooling feed bins by minute fluid 19, and dividing the cross section on fluid top is taper, is used to shunt the coarse particles material that the coarse fodder storehouse falls.At cooling zone, the Yao Bi of two cooling zone feed bins and branch fluid all are provided with pore.Pore is connected with gas extractor 20 on the kiln wall, and gas extractor is connected to gas blower 16 by T-valve 17d.Another road of gas blower is connected to each feed bin top waste gas outlet 3, and connecting pipeline is provided with valve.The gas extractor of cooling zone is connected to combustion air inlet 21 by T- valve 17e, 17c.
The process of calcined limestone of the present utility model is that granularity is big grain Wingdale coarse fodder storehouse in the middle of intermediary hopper 1, charging lock 2 enter of 30mm～120mm; Granularity is that the translateral hopper 1 of the small grain size Wingdale of 10mm～30mm, charging lock 2 enter the fines storehouse.The limestone material of large and small granularity enters the calcining zone calcining respectively after the preheating of preheating zone in thick, fines storehouse, the building stones operation downwards of calcining back enters the band that confluxes.Corresponding two the cooling feed bins 10 that enter kiln body bottom of the small particles material in two particulate storehouses, the large granular materials in middle coarse grain storehouse is divided fluid 19 separately at the band that confluxes, and enters the cooling zone feed bin of branch fluid both sides respectively.Lime product after the calcining in cooling zone feed bin cooling after discharging lock 11, outfeed belt conveyor 12 go out device.Cooling air is blasted by gas blower 16, divides two-way, and the T-valve 17d of leading up to is connected to the gas extractor of cooling zone kiln wall, and other one the tunnel is divided into three the tunnel at Yao Ding, enters the waste gas outlet 3 on top, three preheating zones respectively, and connecting pipeline is provided with valve.When the calcining zone burner in left side is worked, the warm air of chilled product goes out the combustion air inlet of gas extractor on the kiln wall of left side and feeds in the kiln, enter calcining zone and participate in burning, the gas fume after burning transverse flow, by the pore on the partition wall 9, a part enters the coarse fodder storehouse and upwards flows and discharged by the kiln top after adding thermal material, the part of smoke transverse flow fines storehouse that enters an other side travels up to kiln top exhanst gas outlet and discharges in addition, two the feed bin deflated in centre and right side simultaneously, the air door of fines storehouse, left side exhanst gas outlet is in the air inlet state, material in the preheating zone, fines storehouse, cooling left side, cooled warm air flows downward and enters calcining zone participation burning, commutates after work for some time, and inlet mouth originally is an exhaust condition, venting port is the air inlet state, and the calcining situation of kiln is identical.Can be two exhausts of an air inlet for three Yao Cang preheating zones in the work, also can be exhausts of two air inlets, and particular case can require to determine according to actual process.Allow the firing system of the kiln left and right sides to open simultaneously, combustion case can be regulated according to need.Whole process is controlled automatically, carries out aforesaid operations by the valve of regulating four-way valve 18, T-valve a, b and fuel conduit.
More than be embodiment of the present utility model, the various changes that those of ordinary skills make in the scope of the said claims still belong to protection domain of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920103778XU CN201620107U (en) | 2009-07-21 | 2009-07-21 | Multi-chamber lime kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920103778XU CN201620107U (en) | 2009-07-21 | 2009-07-21 | Multi-chamber lime kiln |
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| CN201620107U true CN201620107U (en) | 2010-11-03 |
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| CN200920103778XU Expired - Lifetime CN201620107U (en) | 2009-07-21 | 2009-07-21 | Multi-chamber lime kiln |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627418A (en) * | 2012-04-26 | 2012-08-08 | 石家庄市新华工业炉有限公司 | Compound lime kiln |
| CN104132327A (en) * | 2014-07-04 | 2014-11-05 | 徐州市元亨新能源开发有限公司 | Large horizontal biomass diversified raw material burning machine |
| CN104211308A (en) * | 2014-09-03 | 2014-12-17 | 石家庄新华能源环保科技股份有限公司 | Recuperative type material calcining device |
| CN108358474A (en) * | 2018-05-23 | 2018-08-03 | 绵竹市拱星氧化钙厂 | It uninterruptedly blows the batch mixing formula limekiln economized on coal |
| CN110642539A (en) * | 2019-09-30 | 2020-01-03 | 石家庄新华能源环保科技股份有限公司 | Double-chamber lime kiln |
| CN112146447A (en) * | 2020-09-15 | 2020-12-29 | 广西柳州钢铁集团有限公司 | Method for preventing ash spraying of air release valve of double-chamber kiln |
| CN114216331A (en) * | 2022-02-22 | 2022-03-22 | 河北携海工程技术有限公司 | Internal combustion cross flow type sleeve kiln |
| CN115151774A (en) * | 2020-02-25 | 2022-10-04 | 麦尔兹欧芬堡股份公司 | Apparatus and method for burning and/or calcining lump material |
| WO2022229118A1 (en) * | 2021-04-27 | 2022-11-03 | Maerz Ofenbau Ag | Parallel-flow regenerative shaft kiln and method for burning carbonate rock |
| BE1029343B1 (en) * | 2021-04-27 | 2022-11-28 | Thyssenkrupp Ind Solutions Ag | Co-current counter-current regenerative shaft kiln and method for firing carbonate rock |
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2009
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| CN102627418B (en) * | 2012-04-26 | 2013-08-21 | 石家庄新华能源环保科技股份有限公司 | Compound lime kiln |
| CN102627418A (en) * | 2012-04-26 | 2012-08-08 | 石家庄市新华工业炉有限公司 | Compound lime kiln |
| CN104132327A (en) * | 2014-07-04 | 2014-11-05 | 徐州市元亨新能源开发有限公司 | Large horizontal biomass diversified raw material burning machine |
| CN104132327B (en) * | 2014-07-04 | 2017-08-25 | 徐州市元亨新能源开发有限公司 | A kind of large-size horizontal biomass diversification material combusting machine |
| CN104211308A (en) * | 2014-09-03 | 2014-12-17 | 石家庄新华能源环保科技股份有限公司 | Recuperative type material calcining device |
| CN104211308B (en) * | 2014-09-03 | 2016-02-10 | 石家庄新华能源环保科技股份有限公司 | A kind of dividing wall type material calcining device |
| CN108358474B (en) * | 2018-05-23 | 2023-07-18 | 四川马氏窑技术发展有限公司 | Continuous air supply coal-saving mixing lime kiln |
| CN108358474A (en) * | 2018-05-23 | 2018-08-03 | 绵竹市拱星氧化钙厂 | It uninterruptedly blows the batch mixing formula limekiln economized on coal |
| CN110642539A (en) * | 2019-09-30 | 2020-01-03 | 石家庄新华能源环保科技股份有限公司 | Double-chamber lime kiln |
| CN110642539B (en) * | 2019-09-30 | 2024-06-21 | 石家庄新华能源环保科技股份有限公司 | Double-chamber lime kiln |
| CN115151774A (en) * | 2020-02-25 | 2022-10-04 | 麦尔兹欧芬堡股份公司 | Apparatus and method for burning and/or calcining lump material |
| CN115190959A (en) * | 2020-02-25 | 2022-10-14 | 麦尔兹欧芬堡股份公司 | Apparatus and method for burning and/or calcining bulk material |
| CN112146447A (en) * | 2020-09-15 | 2020-12-29 | 广西柳州钢铁集团有限公司 | Method for preventing ash spraying of air release valve of double-chamber kiln |
| BE1029343B1 (en) * | 2021-04-27 | 2022-11-28 | Thyssenkrupp Ind Solutions Ag | Co-current counter-current regenerative shaft kiln and method for firing carbonate rock |
| WO2022229118A1 (en) * | 2021-04-27 | 2022-11-03 | Maerz Ofenbau Ag | Parallel-flow regenerative shaft kiln and method for burning carbonate rock |
| CN114216331A (en) * | 2022-02-22 | 2022-03-22 | 河北携海工程技术有限公司 | Internal combustion cross flow type sleeve kiln |
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