CN202254754U - Shaft kiln for roasting by comprehensively utilizing heat energy unit temperature field - Google Patents
Shaft kiln for roasting by comprehensively utilizing heat energy unit temperature field Download PDFInfo
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- CN202254754U CN202254754U CN2011203682057U CN201120368205U CN202254754U CN 202254754 U CN202254754 U CN 202254754U CN 2011203682057 U CN2011203682057 U CN 2011203682057U CN 201120368205 U CN201120368205 U CN 201120368205U CN 202254754 U CN202254754 U CN 202254754U
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Abstract
The utility model discloses a shaft kiln for roasting by comprehensively utilizing a heat energy unit temperature field, solving the problems of low-quality product, high heat energy consumption and the like in the existing shaft kiln. The shaft kiln disclosed by the utility model comprises a charging cabin, a charging pipe, a roasting chamber and a cooling chamber. The shaft kiln disclosed by the utility model is characterized in that various discharging ports of the loop shunting charging cabin on the top are respectively connected with the feeding ports of respectively independent unit temperature field material roasting activation chambers through a charging lock blast tube; a layer of unit temperature field burners is arranged in each chamber, the bottoms of various chambers are communicated with a comprehensive material energy integration chamber and communicated with a balancing air flow reinforced cooling chamber through a material diffusion heat exchange region; and the lower part of the balancing air flow reinforced cooling chamber provided with a center cooling air cap and a sub-chamber cooling air cap is connected with a discharging lock air device. The shaft kiln has the advantages that structure design is reliable, and the preheating, roasting and cooling processes of the material can be precisely controlled; and various unit temperature fields are small in roasting regions, strong in flame jetting penetrating powers and even in in-field temperature distribution, and the product is good in quality and low in energy consumption.
Description
Technical field
The utility model patent relates to the shaft furnace that a kind of lump material roasting is used, particularly a kind of comprehensive utilization heat energy cell temperature field roasting shaft furnace of realizing automatic control that is beneficial to that is used for lump materials such as the roasting zone is big, the roasting lime stone of high production capacity, dolomite, magnesite, bauxite.
Background technology
In recent years, various types of shaft furnaces have had very big progress in structure with operating in the present technique field.As: shaft furnace develops into two thorax structures (wheat Wurz kiln) by single thorax; Burner arrangement develops into the setting of peripheral combination center by the periphery setting or feeding stream is provided with; Discharging structure develops into support board structure by the spiral shell awl; Material loading and discharging operation have realized mechanization and automation etc.
At present, some shortcomings below the various forms of shaft furnace ubiquities: big like the roasting zone, temperature distributing disproportionation in its temperature field, zones of different material calcining degree difference is big, and quality is wayward; The fuel quantity of burner irrational distribution or ejection can not accurately be controlled, and causes the roast area temperature local higher or on the low side, and product is given birth to and burnt " increase of (the material roasting is incomplete) or " burning " (material overbaking) amount, yield rate reduces; Charge level descends uneven or is prone to " getting stuck " (material and kiln wall or device for discharging bonding make the top material be difficult to sink promptly so-called getting stuck) when spiral shell awl or supporting plate discharging " disadvantage such as phenomenon, influenced stablizing of shaft furnace thermal regulation; Preheating, roasting in the kiln, cool off the purpose that each link does not all reach accurate control, influenced the raising of product quality and reduction of hear rate (being that product quality is low, energy consumption is high) or the like.To these problems; It is that CN101382381 and notification number are " rectifying multi-chamber calcining vertical kiln " of CN201293539Y that the applicant once designed a kind of patent publication No.; Disclose and a kind ofly concentrated equal feed bin, a plurality of independent feed pipe, a plurality of independent calcining compartment, a concentrated multi-point cooling heat exchanger by shaft furnace shell, feed pipe, warm-air pipe, exhaust duct, discharging mechanism, one, the shaft furnace that central combustion chamber, air-supply arrangement are formed.Tentatively solve regional big, the easy problem of blocking of discharging of roasting, but still had following problem:
It is undesirable that 1 the concentrated equal feed bin that is provided with and a plurality of independent feed pipe are accomplished the effect of stock column lock wind (utilize and concentrate in equal feed bin and the feed pipe gas flow rate high, flowing resistance is big, and wind is locked in realization) jointly.It receives to concentrate interior material reserves of equal feed bin and material " segregation " phenomenon, and (behind the concentrated equal feed bin of material entering, bulk materials is distributed in drop point position far away, and little material is distributed near the drop point, forms the classification phenomenon, and term is claimed " segregation ".) influence bigger;
2 are arranged on X type material channel and hot flue gas in a plurality of independent calcining compartments, and to stream the major defect that exists with external flue following:
1) free settling has inhibition to X type material channel to material, the pressurized damage that is prone to collapse at high temperature;
2) flue gas streams and uses external flue, and radiation loss is big, has reduced the hot working efficiency of system;
3) hot flue gas streams and must extract out and send into high-temperature blower, and is high to the blower fan material requirements, and fragile;
The defective that the central combustion chamber of 3 settings exists is following:
1) is unfavorable for control, promptly is unfavorable for the heat " distribution according to need " in each calcining compartment that fuel combustion produces high-temperature gas capacity in each independent calcining compartment;
2) be unfavorable for preheating, the roasting process of material in each independent calcining compartment are accurately regulated, the controllability of preheating, roasting process is reduced;
4 solid accumulations that are discharged in the cooler from each independent calcining compartment become different bed depths, cause resistance difference big, and cooling blast passes the air quantity skewness of the bed of material, and material cooling effect uniformity is relatively poor;
5 cooler bottoms do not have the lock wind devices, and adopt the single-point discharge way, and the defective of existence is following:
1) discharge process lock wind weak effect is prone to airborne dust;
2) charge level decline is uneven, influences material cooling effect in the cooler.
Summary of the invention
The purpose of the utility model provides a kind of comprehensive utilization heat energy cell temperature field roasting shaft furnace; Solved that the ubiquitous product quality of existing shaft furnace is low, hear rate high-technology problem; Compare with same category of device, its reasonable in design, material distributes, air-flow is evenly distributed; Preheating, roasting, cooling procedure can realize accurate control; Each roasting zone, cell temperature field is little, and strong, the interior uniformity of temperature profile of flame spray penetration power has advantages such as good product quality, the unit production capacity is big, hear rate is low.
The purpose of the utility model is to reach through following measure: this comprehensive utilization heat energy cell temperature field roasting shaft furnace shaft furnace; Comprise and add feed bin, charge pipe, firing chamber and cooling chamber; Its technical essential is: the shaft furnace top is provided with the circuit shunting and adds feed bin; Add each discharge port that feed bin bottom part ring road distributes symmetrically and evenly along circuit shunting and is connected with reinforced lock airduct item end respectively, each reinforced lock airduct bottom is inserted separately the charging aperture of independently cell temperature field material roasting activation chamber respectively; Be arranged on the material roasting of cell temperature field and activate the volume damper of the exhaust gases passes on top, chamber through control flue gas discharge rate, it is preheating zone, roast area along short transverse from the top down successively that each cell temperature field material roasting activates the chamber; The material roasting of cell temperature field activates the indoor one deck cell temperature field burner at least that is provided with, and every layer is provided with a cell temperature field burner at least; Activate the bottom of chamber from the material roasting of cell temperature field and introduce the secondary combustion air after cooling heat transferring heats up; The bottom of roast area is communicated with the material complex energy and integrates the chamber; The material complex energy is integrated the chamber bottom discharge openings and is communicated with balanced air-flow reinforcement cooling chamber through material diffusion heat transfer zone; Balanced air-flow is strengthened cooling chamber center cooling blast cap and locellus cooling blast cap is set, and balanced air-flow is strengthened the cooling chamber bottom and is connected with the discharging airlock.
Add built-in material distributing cone and high and low level detector in the feed bin in said circuit shunting.
On said reinforced lock airduct top feed regulator is set.
In the material roasting of said cell temperature field activates roast area or preheating zone or the preheating zone and the roast area of chamber, cell temperature field burner is set.
The material roasting activates indoor at least one equalization temperature reforming unit that is provided with of chamber in said cell temperature field.
The material roasting of each said cell temperature field activates top, chamber inner chamber and builds by laying bricks or stones and become to go up big, the cylindrical body of little toroidal down; Said equalization temperature reforming unit with sub-material and shunting action is made up of hollow built-in beam, refractory masses.
Each said cell temperature field burner is connected with an end of primary air interface, fuel interface respectively, and the other end of each fuel interface is connected with fuel system, and the other end of each primary air interface is connected with the combustion air air feed system.
Integrating the setting of bottom, chamber at said material complex energy is the materials flow adjustment control that is in tilted layout of power with hydraulic pressure.
Strengthen the center cooling blast cap that is provided with in the cooling chamber at said balanced air-flow and be connected with center cooling air pipeline, locellus cooling blast cap is connected with each locellus cooling air pipeline, and center cooling air pipeline is connected with cooling air channels respectively with each locellus cooling air pipeline; Cooling blast cap in center adopts beveled structure with each locellus cooling blast cap.
Described discharging airlock locks airduct by the discharging that air compartment is locked in discharging, the bottom that is communicated with discharging lock air compartment has intelligent unloading controller and discharge bucket is formed.
The advantage that the utlity model has with good effect is: be connected separately the charging aperture that independently cell temperature field material roasting activates the chamber through reinforced lock airduct respectively because the top circuit shunting of the utility model adds each discharge port of feed bin; Every indoor setting is one deck cell temperature field burner at least; Each bottom, chamber is communicated with material complex energy integration chamber and strengthens cooling chamber through material diffusion heat transfer zone with balanced air-flow and is communicated with; The balanced air-flow reinforcement cooling chamber bottom that center cooling blast cap and locellus cooling blast cap are set is connected with discharging lock airduct; So compare with same category of device, its reasonable in design, material distributes, air-flow is evenly distributed; Preheating, roasting, cooling procedure can realize accurate control; Each roasting zone, cell temperature field is little, and strong, the interior uniformity of temperature profile of flame spray penetration power has advantages such as good product quality, the unit production capacity is big, hear rate is low.Be mainly reflected in:
1) the circuit shunting discharge port that adds feed bin is uniformly distributed in the circuit that adds the feed bin bottom, has prevented the obstruction of material segregation phenomenon and raw material effectively; Add the memory space signal in the feed bin through control, can realize the automatic control of reinforced process;
2) each reinforced lock airduct bottom is inserted separately the charging aperture that independently cell temperature field material roasting activates the chamber respectively, so reinforced lock airduct has good lock wind effect, has solved reinforced process and has leaked out to the influence of hear rate; Each reinforced lock airduct is only controlled the reinforced process that a cell temperature field material roasting activates the chamber; Farthest improved the uniformity that raw meal particle size distributes in each roasting unit, solved owing to of the influence of reasons such as raw meal particle size skewness in the roasting unit to product quality;
3) preheating zone of shaft furnace, roast area be divided into several separately independently the roasting of cell temperature field material activate the chamber; Activate indoor cell temperature field burner flame jet length and roasting zone through controlling each cell temperature field material roasting; Make each roasting zone, roasting unit little; The flame jet length is short, and penetration power is strong, the interior uniformity of temperature profile in field, and is convenient to the independent control of preheating and baking process in each roasting unit;
4) each material roasting activation chamber, cell temperature field is preheating zone, roast area along short transverse from the top down successively.Each cell temperature field material roasting activates indoor setting one deck cell temperature field burner at least; Every layer is provided with a cell temperature field burner at least; Activate fuel quantity and the primary air amount of chamber through controlling each cell temperature field material roasting, make each cell temperature field material roasting activate the chamber and all can independently control along preheating and baking institute calorific requirement along the inner burner ejection.The material roasting of each cell temperature field activate chamber along interior material in the preheating zone, time of staying of roast area all can independently control.The material roasting of a plurality of cell temperatures field activates the chamber and accomplishes shaft furnace whole preheating and roasting function along co-operation, and this unit preheating, roasting function are accomplished in each material roasting activation chamber, cell temperature field along also working alone;
5) between material complex energy integration chamber discharge port and cooling chamber, be provided with material diffusion heat transfer zone.The material that draws off from discharger gets into material diffusion heat transfer zone; Be loose condition (of surface) immediately, enlarged material and cooling air contacted specific surface area, accelerated the cooling velocity of material widely; Satisfied the technology requirement of " burning chilling slowly ", product quality significantly improves;
6) be provided with balanced air-flow in material diffusion heat transfer zone bottom and strengthen cooling chamber.Material behind material diffusion heat transfer zone chilling gets into balanced air-flow and strengthens the cooling chamber slow cooling.Balanced air-flow is strengthened cooling chamber and is provided with center cooling blast cap and several locellus cooling blast caps.Cooling air (cold wind) evenly passes the thermal material bed after spraying through a plurality of cooling blast caps, after the cooling air is heated, introduces the material roasting of cell temperature field and activates the chamber as the secondary combustion air; Material is cooled simultaneously, has reached to maximally utilise waste heat, reduces the purpose of hear rate;
7) a plurality of cooling blast caps that are provided with in the cooling chamber; Improved uniformity that the cooling air distributes in balanced air-flow is strengthened cooling chamber and with the high-temperature material contacted specific surface area; Reach and improve heat exchanger effectiveness in the balanced air-flow reinforcement cooling chamber, thereby reduce the purpose of hear rate;
8) balanced air-flow is strengthened a plurality of dischargings lock airducts that the cooling chamber bottom is provided with, and has solved to leak out in the discharge process and cool off the influence of indoor air flow skewness to hear rate.Improve uniformity that the cooling air distributes in balanced air-flow is strengthened cooling chamber, with the thermal material contacted specific surface area, reach and improve the purpose that balanced air-flow is strengthened the heat exchanger effectiveness in the cooling chamber;
9) intelligent unloading controller that is provided with of the discharging in a plurality of discharging airlocks lock airduct bottom has realized that balanced air-flow strengthens the independence of material in cooling chamber cool time and control automatically, has promptly realized the independent control of cooling procedure;
10) through preheating, roasting and the balanced air-flow of cell temperature field material roasting activation chamber being strengthened effective control of links such as cooling chamber, can realize the accurate control of shaft furnace output, quality.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure sketch map of the utility model.
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Fig. 3 is the another kind of concrete structure sketch map of the utility model.
Fig. 4 is the cutaway view of Fig. 3 along the B-B line.
Sequence number explanation among the figure: the shunting of 1 circuit adds feed bin; 2 reinforced lock airducts; 3 cell temperature field material roastings activate the chamber; 4 primary air interfaces; 5 fuel interface; 6 cell temperature field burners; 7 materials flow adjustment controls; 8 material complex energies are integrated the chamber; 9 materials diffusion heat transfer zone; 10 balanced air-flows are strengthened cooling chamber; 11 cooling air channels; 12 intelligent unloading controllers; 13 discharge buckets; 14 dischargings lock air compartment; 15 locellus cooling blast cap; 16 centers cooling blast cap; 17 roast areas; 18 preheating zones; 19 exhaust gases passes; 20 volume dampers; 21 feed regulators; 22 material distributing cones; 23 equalization temperature reforming units; 24 built-in beams; 25 refractory masses.
The specific embodiment
Specify the specific embodiment of the utility model below in conjunction with Fig. 1～4.This comprehensive utilization heat energy cell temperature field roasting shaft furnace comprises and adds feed bin, charge pipe, firing chamber and cooling chamber, and the circuit shunting that wherein is arranged on the shaft furnace top adds specification, the shape of feed bin 1 and should select according to actual needs.Circuit is shunted to add material distributing cone 22 is set in the feed bin 1, and the material in the feed bin is uniformly distributed in the circuit between bin wall and the material distributing cone 22 through material distributing cone 22, and the discharge port that is connected respectively with each reinforced lock airduct 2 distributes along the circuit bottom the feed bin symmetrically and evenly.Utilize peripheral discharge way, make material in the feed bin be uniformly distributed in reinforced lock airduct 2 directly over.The general employing of the size of discharge port is advisable for 3 times greater than particle diameter, takes place to prevent that raw material from stopping up with " segregation " phenomenon; Be the best storage amount of control material, add feed bin 1 in level detector can be set in that the circuit shunting is set that the memory space signal that adds feed bin through the shunting of control circuit can be realized the automatic control of the process of feeding in raw material in the storehouse.
Reinforced lock airduct 2 tops that the shunting of connection circuit adds between feed bin 1 and each the material roasting activation chamber 8, cell temperature field are provided with feed regulator 21; The sized of reinforced lock airduct 2, shape should adapt with specification, the shape that the circuit shunting adds the discharge port of feed bin 1; And, confirm the length of reinforced lock airduct 2 according to being full of the needs that material guarantees stock column height in good lock wind effect and the cell temperature field material roasting activation chamber 3 in the reinforced lock airduct 2 all the time.Because each reinforced lock airduct 2 is only controlled the reinforced process that a cell temperature field material roasting activates chamber 3; Activate the uniformity that raw meal particle sizes distribute in chamber 3 so farthest improved each cell temperature field material roasting, solved owing to the influence of reason to product quality and hear rate such as leak out of raw meal particle size skewness, reinforced process.
The preheating of shaft furnace and roasting zone are divided into the material roasting of a plurality of independently cell temperatures field and activate chamber 3, and the specification of each chamber, shape should be provided with according to the need and possibility.It is preheating zone 18, roast area 17 along short transverse from the top down successively that each cell temperature field material roasting activates chamber 3.The top charging aperture that each cell temperature field material roasting activates chamber 3 connects reinforced lock airduct 2 respectively.The exhaust gases passes 19 that is arranged on material roasting activation 3 tops, chamber, cell temperature field is communicated with the discharge rate of control hot gas with the smoke evacuation house steward through the volume damper 20 of controlling the flue gas discharge rate.The material roasting of cell temperature field activates in the chamber 3 one deck cell temperature field burner 6 at least is set, and every layer is provided with a cell temperature field burner 6 at least.Can also in the material roasting of cell temperature field activates chamber 3, at least one equalization temperature reforming unit 23 be set as required; Each cell temperature field material roasting activates in chamber 3 lays the fire-resistant material heat insulation layer respectively, and each cell temperature field material roasting activates 3 internal upper part preheating zones, chamber, 18 inner chambers can build the column structure of slightly presenting greatly, descending little toroidal by laying bricks or stones.Thermal current is bottom-up to flow when rising to the toroidal zone, and thermal current receives the influence of inertia to be upward through the bed of material, and (gas flow belongs to the motion that fluid passes the bulk cargo layer in the shaft furnace to avoid " wall effect " effectively; Inner at the bulk cargo layer, gas the passage of process be tortuous, and the limit wall contacts with material; The gas passage complications are less; Air resistance is less, makes more, the promptly usually said wall effect of limit portion air-flow).Through the heat-blocking action of refractory material, make the material roasting of cell temperature field activate the erosion that chamber 3 housings are avoided high-temperature flue gas.Improving when the material roasting of cell temperature field activates 3 service lifes of chamber, reduce its radiation loss, improve the thermal efficiency that the material roasting of cell temperature field activates chamber 3.
According to instructions for use; Be to improve the uniformity of material roasting, preheating, can in roast area 17 or preheating zone 18 or preheating zone 18 that the material roasting of cell temperature field activates chamber 3 and roast area 17, cell temperature field burner 6 be set, make flame when penetrating the material bed; The temperature field that formation is evenly distributed; Make material obtain sufficient roasting, preheating, reduced local giving birth to and burnt and burn-off phenomenon, improved product quality.Each cell temperature field burner 6 is connected with an end of primary air interface 4, fuel interface 5 respectively, and the other end of each fuel interface 5 all is connected with fuel system, and the other end of each primary air interface 4 all is connected with the combustion air air feed system.The sleeve structure that each cell temperature field burner 6 is made up of fuel channel and primary air passage in the burner end, is provided with fuel and primary air mixing bunker, is provided with 0 ~ 65 ° of helical blade in the mixing bunker.Each cell temperature field material roasting activates chamber 3 and can work alone, and accomplishes preheating, the roasting of this supplies of unit.The material roasting of a plurality of cell temperatures field activates chamber 3 co-operation, can accomplish the preheating and the roasting of whole shaft furnace material comprehensively.Material preheating, roasting institute calorific requirement are provided by the thermal current of the fuel combustion generation of cell temperature field burner 6 ejections; The required primary air of fuel combustion sprays into from the primary air interface 4 of burner, and introduce the required secondary combustion air of the fuel combustion bottom that the material roasting activates chamber 3 from the cell temperature field.Cell temperature field material roasting activate the thermal current that has uniform temperature in the chamber 3 with material reverse flow contact process in; Make the bioactive molecule of material under the diffusion of thermal current, osmosis; All the more active, the material inside and outside temperature difference is dwindled in the activation that progressively is excited of potential potential energy gradually.Each cell temperature field material roasting activates chamber 3 material preheatings, roasting institute calorific requirement; Regulate through controlling primary air amount and the fuel quantity that this chamber unit temperature field burner 6 sprays into; Thereby can be according to preheating, the roasting situation of materials in each material roasting activation chamber 3, separate unit temperature field; The heat distribution situation of this chamber of corresponding adjustment is to reach the purpose that improves material preheating, roasting process controllability.
According to actual needs, can in preheating zone 18 or roast area 17 or preheating zone 18 that the material roasting of cell temperature field activates chamber 3 and roast area 17, equalization temperature reforming unit 23 be set.Equalization temperature reforming unit 23 with sub-material and shunting action is made up of built-in beam 24 and refractory masses 25.Streams is nature piles up through equalization temperature reforming unit 23 both sides, has improved the Flow of Goods and Materials characteristic in roast area 17 or the preheating zone 18, has improved the porosity of material bed, has reduced the flowing resistance of material bed.The flow through bed of material of the reverse entering following current in shunting back, both sides of equalization temperature reforming unit 23 of hot gas.Should be according to the difference of material bed difference place, plane flowing resistance, the planform of design equalization temperature reforming unit 23 makes it can reach the flowing resistance in the balance kiln, can realize hot gas equally distributed purpose in the material bed again.Roast area 17 or the materials in the preheating zone 18 that can guarantee to eliminate the to greatest extent material uneven phenomenon of being heated, adjustment bulk materials inside and outside temperature difference guarantees that the bulk materials roasting quality is balanced.
The bottom that each cell temperature field material roasting activates chamber 3 all is communicated with material complex energy integration chamber 8.It is large-scale positive displacement spaces that the material complex energy is integrated chamber 8, and any parts are not set, and is the place that the in-depth of roasting material activates, complex energy is integrated.High-temperature material has certain heat after activating integration, the potential potential energy of the bioactive molecule in the material obtains continuing the in-depth integration in the environment of material complex energy integration chamber 8 static state, further adjust balanced material inside and outside temperature difference.Meanwhile; Integrate the cooling air after cooling heat transferring heats up of the discharge port introduction of 8 bottoms, chamber from the material complex energy; With activate to integrate after reach equalization quality high-temperature material carry out exchange heat once more after; Self temperature of cooling air significantly improves and forms the secondary combustion air, and the comprehensive utilization that has improved heat energy is introduced in the bottom that the material roasting activates chamber 3 from the cell temperature field.The introducing amount of secondary combustion air is controlled by the volume damper 20 on the exhaust gases passes 19 at cell temperature field material roasting activation 3 tops, chamber.The discharge port setting that the material complex energy is integrated 8 bottoms, chamber is the materials flow adjustment control 7 of power with hydraulic pressure; The high-temperature material that has certain heat for control is after the bottom discharge of cell temperature field material roasting activation chamber 3; In flowing at the uniform velocity, dynamically, further activate and integrate, equalization quality, the while is carried out exchange heat with upstream secondary combustion air more fully; The materials flow adjustment control 7 that is obliquely installed is connected with the control circuit of Hydraulic Station, carries out speed regulating control.The power of materials flow adjustment control 7 is by the power supply of the 12 ~ 20MPa that concentrates Hydraulic Station to provide, and the pusher amount is by the control circuit control of Hydraulic Station.
Under 7 effects of materials flow adjustment control; Push the material complex energy and integrate the material of chamber 8 bottom discharge openings, when in material diffusion Heat Room 9, being loose free settling whereabouts, meet with upstream cooling air through cooling chamber heat exchange slow cooling; Because of the contact area of material big; Rate of heat transfer is fast, gets into the cooling air temperature in the material complex energy integration chamber 8 and has reduced material temperature in the entering cooling chamber so improved rapidly, has reached chilling and the effect that maximally utilises waste heat.Material behind material diffusion Heat Room 9 chillings gets into balanced air-flow and strengthens cooling chamber 10 slow coolings.Balanced air-flow is strengthened cooling chamber 10 and is provided with the center cooling blast cap 16 and a plurality of locellus cooling blast caps 15 that are connected with locellus cooling air pipeline that is connected with center cooling air pipeline.Center cooling air pipeline is connected with cooling air channels 11 respectively with each locellus cooling air pipeline.After the cooling air that cooling air channels 11 provides sprays through center cooling blast cap 16 and a plurality of locellus cooling blast caps 15; Evenly pass the material bed behind chilling; After the cooling air is heated up by heat exchange; Integrate the discharge port of 8 bottoms, chamber from the material complex energy and introduce, the high-temperature material heat exchange that is had certain heat forms the secondary combustion air; Balanced air-flow is strengthened the cooling chamber bottom and is connected with the discharging airlock, and this discharging airlock locks by discharging lock air compartment 14, with discharging that airduct is locked in discharging that bottom that air compartment 14 is communicated with has an intelligent unloading controller 12 and discharge bucket 13 is formed.The material that is cooled enters the discharging lock air compartment 14 that has discharging lock airduct, and the discharging lock airduct that has intelligent unloading controller 12 by the bottom has again reached the purpose of utilizing waste heat further through discharge bucket 13 dischargings.Wherein specification, shape, the quantity of discharging lock air compartment 14, discharging lock airduct, center cooling blast cap 16 and locellus cooling blast cap 15 should be confirmed according to the sectional area of balanced air-flow reinforcement cooling chamber 10.The center cooling blast cap 16 of present embodiment all adopts beveled structure with each locellus cooling blast cap 15.Balanced air-flow is strengthened the connecting interface of cooling chamber 10 bottoms and each discharging lock air compartment 14, employing large tracts of land interface and contraction structure gradually.The large tracts of land interface has enlarged the discharging area of each discharging lock airduct, has guaranteed the material uniform settlement, improves the uniformity that the cooling air distributes in balanced air-flow is strengthened cooling chamber 10, has enlarged and the thermal material contacted specific surface area.Simultaneously, utilize the bottom to have the long-pending column structure of discharging lock airduct bottom small cross sections of intelligent unloading controller 12, improve its lock wind effect, realized the lock wind and the purpose that promotes the material uniform settlement of discharge process.
Application is the shaft furnace adaptive control system at center with the PLC programmable control module, carries out conventional control and intelligent management.Discharge rate is that upper and lower limit signal through balanced air-flow is strengthened the level detector of the memory space of materials in the cooling chamber 10 is controlled with opening, stopping in the cooling chamber.Prescribe a time limit when material arrives on the memory space, start intelligent unloading controller 12 or strengthen discharge rate; When material arrives under the memory space in limited time, stop discharging or reduce discharge rate, can realize that balanced air-flow strengthens cooling chamber 10 and draw off bed of material layer height in the material process, i.e. the automatic control of material cool time.When the set-point of setting changed, adaptive control system was carried out the outer automated programming decoding of machine quickly and accurately, realizes the Different control scheme.PLC control that can be through system is reinforced, the capacity in the discharging, combustion air air inflow, control flue, and each burner fuel amount realizes the accurate control of shaft furnace output, quality.
Claims (10)
1. one kind fully utilizes heat energy cell temperature field roasting shaft furnace; Comprise and add feed bin, charge pipe, firing chamber and cooling chamber; It is characterized in that: the shaft furnace top is provided with the circuit shunting and adds feed bin; Add each discharge port that feed bin bottom part ring road distributes symmetrically and evenly along circuit shunting and is connected with reinforced lock airduct top respectively, each reinforced lock airduct bottom is inserted separately the charging aperture of independently cell temperature field material roasting activation chamber respectively; The unit exhaust gases passes that is arranged on material roasting activation top, chamber, cell temperature field is communicated with the smoke evacuation house steward through the unit volume damper of controlling the flue gas discharge rate, and it is preheating zone, roast area along short transverse from the top down successively that each cell temperature field material roasting activates chamber; The material roasting of cell temperature field activates indoor setting one deck cell temperature field burner at least, and every layer is provided with a cell temperature field burner at least; Activate the bottom of chamber from the material roasting of cell temperature field and introduce the secondary combustion air after cooling heat transferring heats up; The bottom of roast area is communicated with the material complex energy and integrates the chamber; The material complex energy is integrated the chamber bottom discharge openings and is communicated with balanced air-flow reinforcement cooling chamber through material diffusion heat transfer zone; Balanced air-flow is strengthened cooling chamber center cooling blast cap and locellus cooling blast cap is set, and balanced air-flow is strengthened the cooling chamber bottom and is connected with the discharging airlock.
2. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: add built-in material distributing cone and level detector in the feed bin in said circuit shunting.
3. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: on said reinforced lock airduct top feed regulator is set.
4. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: the material roasting of each described cell temperature field activates preheating zone, top, chamber inner chamber and builds by laying bricks or stones and become to go up big, the cylindrical body of little toroidal down.
5. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: in the material roasting of said cell temperature field activates roast area or preheating zone or the preheating zone and the roast area of chamber, cell temperature field burner is set.
6. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: the material roasting activates indoor at least one equalization temperature reforming unit that is provided with in said cell temperature field; Equalization temperature reforming unit with sub-material and shunting action is made up of hollow built-in beam, refractory masses.
7. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1; It is characterized in that: each said cell temperature field burner is connected with an end of primary air interface, fuel interface respectively; The other end of each fuel interface is connected with fuel system, and the other end of each primary air interface is connected with the combustion air air feed system.
8. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: integrating the setting of bottom, chamber at said material complex energy is the materials flow adjustment control that is in tilted layout of power with hydraulic pressure.
9. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1; It is characterized in that: strengthen the center cooling blast cap that is provided with in the cooling chamber at said balanced air-flow and be connected with center cooling air pipeline; Locellus cooling blast cap is connected with each locellus cooling air pipeline; Center cooling air pipeline is connected with cooling air channels respectively with each locellus cooling air pipeline, and cooling blast cap in center adopts beveled structure with each locellus cooling blast cap.
10. comprehensive utilization heat energy cell temperature field roasting shaft furnace according to claim 1 is characterized in that: described discharging airlock locks airduct by the discharging that air compartment is locked in discharging, the bottom that is communicated with discharging lock air compartment has intelligent unloading controller and discharge bucket is formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203682057U CN202254754U (en) | 2011-09-30 | 2011-09-30 | Shaft kiln for roasting by comprehensively utilizing heat energy unit temperature field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203682057U CN202254754U (en) | 2011-09-30 | 2011-09-30 | Shaft kiln for roasting by comprehensively utilizing heat energy unit temperature field |
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| CN202254754U true CN202254754U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203682057U Withdrawn - After Issue CN202254754U (en) | 2011-09-30 | 2011-09-30 | Shaft kiln for roasting by comprehensively utilizing heat energy unit temperature field |
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| Country | Link |
|---|---|
| CN (1) | CN202254754U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374769A (en) * | 2011-09-30 | 2012-03-14 | 鞍山市华杰建材技术开发有限公司 | Calcinating shaft kiln comprehensively utilizing heat energy unit temperature field |
| CN108088236A (en) * | 2018-01-18 | 2018-05-29 | 南京苏冶钙业技术有限公司 | Industry calcining shaft kiln |
| CN108592641A (en) * | 2018-05-07 | 2018-09-28 | 索通发展股份有限公司 | A kind of pre-heated electric forge furnace |
| CN110683772A (en) * | 2019-11-15 | 2020-01-14 | 湖南绿生科技发展有限公司 | Energy-saving environment-friendly lime kiln |
-
2011
- 2011-09-30 CN CN2011203682057U patent/CN202254754U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374769A (en) * | 2011-09-30 | 2012-03-14 | 鞍山市华杰建材技术开发有限公司 | Calcinating shaft kiln comprehensively utilizing heat energy unit temperature field |
| CN108088236A (en) * | 2018-01-18 | 2018-05-29 | 南京苏冶钙业技术有限公司 | Industry calcining shaft kiln |
| CN108592641A (en) * | 2018-05-07 | 2018-09-28 | 索通发展股份有限公司 | A kind of pre-heated electric forge furnace |
| CN110683772A (en) * | 2019-11-15 | 2020-01-14 | 湖南绿生科技发展有限公司 | Energy-saving environment-friendly lime kiln |
| CN110683772B (en) * | 2019-11-15 | 2022-09-30 | 湖南绿生科技发展有限公司 | Energy-saving environment-friendly lime kiln |
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Granted publication date: 20120530 Effective date of abandoning: 20130612 |
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