CN204757718U - Aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system - Google Patents
Aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system Download PDFInfo
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- CN204757718U CN204757718U CN201520537334.2U CN201520537334U CN204757718U CN 204757718 U CN204757718 U CN 204757718U CN 201520537334 U CN201520537334 U CN 201520537334U CN 204757718 U CN204757718 U CN 204757718U
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses an aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system belongs to rotary kiln product waste heat recovery technology field. The utility model discloses a recovery system, including directly inhaling formula waste heat recovery mechanism, inside the entrance point of induced duct stretched into the cooling cylinder, the exit end of induced duct was linked together with the air intake of fan, and the air outlet of fan is linked together with dust collector's import, and dust collector's export is linked together with the air inlet of nozzle. The utility model discloses a recovery method, through fan suction from cooling cylinder both ends incoming air, the air carries out heat convection with high temperature aggregate surface and is heated in that the cooling cylinder is inside, and the hot -air is gone into cyclone by the fan drum again and is carried out dust removal purification, and the air inlet that hot -air behind the dust removal purification got into the nozzle is as preheated air. The utility model discloses an improve that the aggregate is calcined the rotary kiln waste heat utilization efficiency, is promoted the aggregate cooling effect, the water economy resource, protect cooling arrangement, improve the function of operation environment and air quality.
Description
Technical field
The utility model relates to rotary kiln product heat recovery technology field, more particularly, relates to a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system.
Background technology
Calcined by rotary kiln is the main technique of producing bioceramic filtrate, its effect is dried and sintering processes the raw material (i.e. clay and flyash make spherical particle) that filtrate is produced, wherein, drying section is in order to get rid of the moisture contained by ceramic filter material, and sintering stage makes filtrate bead reach intensity needed for commercial Application and hardness requirement by calcining.
In existing bioceramic filtrate production technology, all adopt rotary kiln as its main calciner.Heat feeds in rotary kiln with the form of high-temperature flue gas by combustion system, carries out heating and calcining to the ceramic filter material of reverse flow.The ceramic filter material completing calcination process is discharged from kiln hood chute at high operating temperatures, enters cooling cylinder cooling.In order to strengthen cooling effect, usually carrying out cool water shower at cooling cylinder outer wall, forging to take away high temperature the heat stored in rear ceramic filter material, reach the object reducing ceramic filter material temperature.Flowed in storage cistern by the cooling water heated after spray and recycle.But above-mentioned bioceramic filtrate production technology has the shortcoming of following several respects: the residual heat resources that the pellet (i.e. ceramic filter material) behind (1), high-temperature calcination carries are completely wasted, and run counter to the recycling economy principle of energy-saving and emission-reduction; And spraying cooling mode indirectly cools high-temperature calcination product, cooling effectiveness is low, cooling effect is poor; (2), in cool water shower process, a large amount of cooling water becomes steam and loses, and cooling water consumption is large, is unfavorable for the saving of water resource; And consume a large amount of electric power in cooling water circulation spray process; (3), the spray of long-term cooling water, severe oxidation has corroded cooling device, adds the cost of overhaul of the equipments and maintenance; (4), long-term spraying cooling process around environment create a large amount of vapours, be degrading operating environment; (5) be with the air of solid dust particle along with pellet is from the discharge of cooling cylinder discharging opening, in a large number, pollute surrounding air, reduce air quality.
For dispersed heat in recovery pellet production process, in prior art, existing relevant technical scheme is open, as patent publication No.: CN203824299U, publication date: on 09 10th, 2014, invention and created name is: rotary kiln waste heat utilization structure and rotary kiln production system, this application case discloses a kind of rotary kiln waste heat utilization structure and rotary kiln production system, rotary kiln waste heat utilization structure comprises the rotary kiln discharging pipeline connecting rotary kiln and cooling kiln, combustion-supporting gas pipeline and the fuel gas pipeline be connected with rotary kiln, combustion-supporting gas pipeline extends past in rotary kiln discharging pipeline and is connected to rotary kiln, combustion-supporting gas can be fed in rotary kiln.After combustion-supporting gas utilizes the waste heat of rotary kiln to heat in rotary kiln discharging pipeline, then pass into rotary kiln, thus reduce the consumption of combustion gas.Meanwhile, combustion-supporting gas carries out heat exchange with the waste heat of rotary kiln in rotary kiln discharging pipeline, thus can reduce the cooling load of follow-up process for cooling.But this application case also has the following disadvantages: the time that (1), pellet stop in rotary kiln discharging pipeline is shorter, heat entrained on pellet is difficult to be fully utilized, and rotary kiln utilization rate of waste heat is low; (2), cooling kiln still needs to cool in it pellet with uniform temperature by the mode of spray, and waste a large amount of residual heat resources like this, cooling water consumption is large, adds the cost of overhaul of the equipments and maintenance, is degrading operating environment.
In sum, how to overcome in prior art that pellet calcination rotary kiln utilization rate of waste heat is low, spraying cooling mode cooling effect is poor, great lot of water resources is wasted, cooling device is easily corroded, severe operational environment and air-polluting deficiency, be the current technical barrier needing solution badly.
Utility model content
1. the utility model technical problem that will solve
The utility model to overcome in prior art that pellet calcination rotary kiln utilization rate of waste heat is low, spraying cooling mode cooling effect is poor, great lot of water resources is wasted, cooling device is easily corroded, severe operational environment and air-polluting deficiency; provide a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system, achieve and improve pellet calcination rotary kiln utilization rate of waste heat, promote pellet cooling effect, saving water resource, protection cooling device, improve the function of operating environment and air quality.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
Pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present utility model, comprises burner, combustion chamber, rotary kiln, blanking chute, cooling cylinder bearing block, cooling cylinder driving wheel and cooling cylinder; Also comprise direct absorbing type waste heat recovering mechanism;
Above-mentioned direct absorbing type waste heat recovering mechanism comprises induced duct, blower fan and dust arrester, the entrance point of induced duct stretches into cooling cylinder inside, the port of export of induced duct is connected with the air inlet of blower fan, the air outlet of blower fan is connected with the import of dust arrester, and the outlet of dust arrester is connected with the air intake of burner; The charging aperture of described cooling cylinder and the equal opening of discharging opening are arranged.
Further improve as the utility model, described induced duct comprises induced duct wind inlet section and induced duct soaking zone, and induced duct soaking zone is between cooling cylinder and blower fan, and insulation material is wrapped up in the outside of induced duct soaking zone; Described dust arrester is cyclone dust collectors, and deduster air inlet is provided with deduster blast pipe, and deduster air outlet is provided with deduster discharge pipe; The entrance point of induced duct wind inlet section stretches into cooling cylinder inside, and the port of export of induced duct wind inlet section is connected with the entrance point of induced duct soaking zone, and the port of export of induced duct soaking zone is connected with the air inlet of blower fan, and the air outlet of blower fan is connected with deduster blast pipe; Deduster discharge pipe is connected with the air intake of burner.
Further improve as the utility model, also comprise wind inlet section fixture, above-mentioned wind inlet section fixture comprises cross bar, suspension rod and pole, and suspension rod is fixed on the outside support of combustion chamber, and pole fixes on the ground; Described cross bar runs through the inside of cooling cylinder, and one end and the suspension rod of cross bar fix, and the other end and the pole of cross bar fix; Described induced duct wind inlet section is fixed on cross bar; Described cyclone dust collectors are located on cyclone dust collectors base.
Further improve as the utility model, the entrance point of described induced duct wind inlet section is called horizontal air inlet, and the length direction of this horizontal face, air inlet place and induced duct wind inlet section is the angle of 30 ° ~ 60 °, and the opening of horizontal air inlet is tilted to down.
Further improve as the utility model, the downside of described induced duct wind inlet section is provided with lower air inlet, and lower air inlet is near the entrance point of induced duct wind inlet section.
Further improve as the utility model, described cross bar is shaped steel; The insulation material wrapped up outside induced duct soaking zone is heat-preservation cotton.
Further improve as the utility model, described lower air inlet is 3 ~ 8 manholes, and the diameter of each manhole is 10 ~ 100mm, and the spacing of adjacent circular through hole is 20 ~ 150mm.
Further improve as the utility model, the entrance point of induced duct wind inlet section is positioned at the scope of cooling cylinder mid point to both sides skew 0 ~ 500mm; The caliber of induced duct wind inlet section, induced duct soaking zone, deduster blast pipe and deduster discharge pipe is 150 ~ 500mm.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following remarkable result:
(1), pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present utility model, adopt direct absorbing type waste heat recovering mechanism, the air entered from charging aperture and the discharging opening at cooling cylinder two ends is aspirated by blower fan, air carries out heat convection in cooling cylinder inside with high temperature pellet surface and is heated, hot-air is blasted cyclone dust collectors by blower fan again and carries out udst separation, hot-air after udst separation enters the air intake of burner by deduster discharge pipe, for the flame combustion of burner provides preheated air, realize the recovery to pellet calcination rotary kiln product waste heat, take output as the bioceramic filtrate rotary kiln of 80t/ days be example, temperature in product introduction cooling cylinder is about 900 DEG C, as calculated, after reclaiming product waste heat by direct absorbing type waste heat recovering mechanism, can by about the temperature increase to 400 of preheated air DEG C, this process can reclaim about 35.3% of product waste heat, energy-saving effect is very remarkable.
(2), in the utility model, the residual heat resources that pellet after high-temperature calcination carries with the Convective Heat Transfer of air in be fully absorbed utilization, the hot-air formed is combustion-supporting as the combustion air of burner, improve efficiency of combustion and the combustion efficiency of burner, meet the recycling economy principle of energy-saving and emission-reduction; And air is direct and high temperature pellet surface carries out heat convection, air mass flow and flow velocity are all comparatively large, and this pellet is directly better compared to traditional indirect type of cooling cooling effect by air cooled mode, and energy recovery waste heat resource, save cost, kill two birds with one stone.
(3), in the utility model, after adopting direct absorbing type waste heat recovering mechanism, pellet in cooling cylinder after high-temperature calcination is lowered the temperature rapidly, adopting traditional cool water shower mode to lower the temperature to pellet, having saved a large amount of electric power consumed in water resource and cooling water circulation spray process without the need to continuing; And avoiding because of long-term cool water shower, severe oxidation corrosion cooling device, increases the phenomenon of overhaul of the equipments and maintenance cost, also avoids producing a large amount of vapours around cooling cylinder, improve operating environment.
(4), in the utility model, adopt cyclone dust collectors that the hot-air containing solid dust particle is carried out udst separation, in order to avoid dust-laden hot-air blocks burner; And the air avoided in a large number with solid dust particle when adopting traditional processing technology is along with pellet is from the discharge of cooling cylinder discharging opening, pollutes surrounding air, reduces the phenomenon of air quality.
(5), pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present utility model, on existing equipment basis, only do less change can realize, and improvement cost is lower, and Operation and maintenance are convenient, and overall economic efficiency is remarkable.
Accompanying drawing explanation
Fig. 1 is the structural representation of pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present utility model;
Fig. 2 is the partial structurtes schematic diagram of induced duct wind inlet section in the utility model.
Label declaration in schematic diagram: 1, burner; 2, combustion chamber; 3, rotary kiln; 4, blanking chute; 5, cooling cylinder; 601, induced duct wind inlet section; 602, induced duct soaking zone; 7, blower fan; 801, deduster blast pipe; 802, deduster discharge pipe; 901, cyclone dust collectors; 902, deduster air inlet; 903, deduster air outlet; 10, cross bar; 11, suspension rod; 12, pole; 13, cyclone dust collectors base; 1401, horizontal air inlet; 1402, lower air inlet.
Detailed description of the invention
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As depicted in figs. 1 and 2, the pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, comprises burner 1, combustion chamber 2, rotary kiln 3, blanking chute 4, cooling cylinder bearing block, cooling cylinder driving wheel and cooling cylinder 5.Burner 1 produces combustion flame in combustion chamber 2, the pellet in calcination rotary kiln 3; Pellet after calcining flows out the charging aperture arriving cooling cylinder 5 from blanking chute 4; Cooling cylinder bearing block has two, and cooling cylinder 5 is installed on the cooling cylinder bearing block of two differing heights obliquely, makes the height of height higher than cooling cylinder 5 discharge outlet at cooling cylinder 5 charging aperture place; Cooling cylinder drive wheel cooling cylinder 5 rotates, and the pellet in cooling cylinder 5 moves to the discharging opening of cooling cylinder 5 along with the rotation of cooling cylinder 5.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, also comprise direct absorbing type waste heat recovering mechanism, above-mentioned direct absorbing type waste heat recovering mechanism comprises induced duct, blower fan 7 and dust arrester, the entrance point of induced duct stretches into cooling cylinder 5 inside, the port of export of induced duct is connected with the air inlet of blower fan 7, the air outlet of blower fan 7 is connected with the import of dust arrester, and the outlet of dust arrester is connected with the air intake of burner 1.Blower fan 7 for aspirating the gas in cooling cylinder 5, and by gas drum in cyclone dust collectors 901; Consider that the temperature of hot-air is higher, blower fan 7 adopts high-temperature blower, to improve the service life of blower fan 7.The charging aperture of cooling cylinder 5 and the equal opening of discharging opening are arranged, thus cooling cylinder 5 inside is connected with the air of surrounding environment, facilitate air enter cooling cylinder 5 inside from the charging aperture of cooling cylinder 5 and discharging opening respectively and carry out heat convection with the pellet surface of cooling cylinder 5 inside.
Concrete, induced duct comprises induced duct wind inlet section 601 and induced duct soaking zone 602, induced duct soaking zone 602 is between cooling cylinder 5 and blower fan 7, the outside parcel insulation material of induced duct soaking zone 602, in the present embodiment, outside induced duct soaking zone 602, the insulation material of parcel is heat-preservation cotton, decreases the thermal loss of induced duct soaking zone 602.Dust arrester is cyclone dust collectors 901, and cyclone dust collectors 901, for removing entrained solid dust granules in hot-air, purify hot-air, in order to avoid dust-laden hot-air blocking burner 1; Cyclone dust collectors 901 are located on cyclone dust collectors base 13, and deduster air inlet 902 is provided with deduster blast pipe 801, and deduster air outlet 903 is provided with deduster discharge pipe 802.The entrance point of induced duct wind inlet section 601 stretches into cooling cylinder 5 inside, the port of export of induced duct wind inlet section 601 is connected with the entrance point of induced duct soaking zone 602, the port of export of induced duct soaking zone 602 is connected with the air inlet of blower fan 7, and the air outlet of blower fan 7 is connected with deduster blast pipe 801; Deduster discharge pipe 802 is connected with the air intake of burner 1.It is inner that induced duct wind inlet section 601 is fixed on cooling cylinder 5 by wind inlet section fixture, and concrete, above-mentioned wind inlet section fixture comprises cross bar 10, suspension rod 11 and pole 12, and suspension rod 11 is fixed on the outside support of combustion chamber 2, and pole 12 fixes on the ground; Cross bar 10 runs through the inside of cooling cylinder 5, and one end and the suspension rod 11 of cross bar 10 fix, and the other end and the pole 12 of cross bar 10 fix; Induced duct wind inlet section 601 is fixed on cross bar 10, and in order to increase constant intensity, cross bar 10 is angle steel.The entrance point of induced duct wind inlet section 601 is called horizontal air inlet 1401, in order to prevent pellet in cooling cylinder 5 above fall time enter induced duct wind inlet section 601, the length direction of this horizontal face, air inlet 1401 place and induced duct wind inlet section 601 is the angle of 30 ° ~ 60 °, and the opening of horizontal air inlet 1401 is tilted to down, concrete, in the present embodiment, the length direction of horizontal face, air inlet 1401 place and induced duct wind inlet section 601 is the angle of 45 °.Enter the entrance of induced duct wind inlet section 601 to expand air, increase air mass flow, the downside of induced duct wind inlet section 601 is provided with lower air inlet 1402, and lower air inlet 1402 is near the entrance point of induced duct wind inlet section 601.Lower air inlet 1402 is 3 ~ 8 manholes, the diameter of each manhole is 10 ~ 100mm, the spacing of adjacent circular through hole is 20 ~ 150mm, concrete, in the present embodiment, lower air inlet 1402 is 5 manholes, the diameter of each manhole is 50mm, and the spacing of adjacent circular through hole is 100mm.In order to ensure that horizontal air inlet 1401 and lower air inlet 1402 are drawn into the hot-air of homogeneous temperature from cooling cylinder 5 two ends, the entrance point of induced duct wind inlet section 601 is positioned at the scope of cooling cylinder 5 mid point to both sides skew 0 ~ 500mm; The caliber of induced duct wind inlet section 601, induced duct soaking zone 602, deduster blast pipe 801 and deduster discharge pipe 802 is 150 ~ 500mm, concrete, in the present embodiment, the entrance point of induced duct wind inlet section 601 is positioned at cooling cylinder 5 mid point and offsets 500mm place to the left, and the caliber of induced duct wind inlet section 601, induced duct soaking zone 602, deduster blast pipe 801 and deduster discharge pipe 802 is 300mm.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery method of the present embodiment, comprises the following steps,
Blower fan 7 in step one, unlatching pellet calcination rotary kiln product waste heat direct absorbing type recovery system and cyclone dust collectors 901, it is inner that air is inhaled into cooling cylinder 5 from the charging aperture at cooling cylinder 5 two ends and discharging opening respectively, entering the air of cooling cylinder 5 inside and high temperature pellet surface carries out after heat convection heated, induced duct wind inlet section 601 is entered again by horizontal air inlet 1401 and lower air inlet 1402, wherein, after air and high temperature pellet surface carry out heat convection, pellet is cooled lowers the temperature, and air mass flow and flow velocity are all comparatively large, the effect of pellet cooling is more obvious;
Step 2, the hot-air entering induced duct wind inlet section 601 are inhaled into blower fan 7 through induced duct soaking zone 602, now contain more solid dust particle in hot-air, then by blower fan 7, the hot-air containing solid dust particle is blasted cyclone dust collectors 901 and carry out udst separation;
Hot-air after step 3, udst separation enters the air intake of burner 1 by deduster discharge pipe 802, and the flame combustion for burner 1 provides preheated air (namely combustion-supporting as combustion air), realizes the recovery to pellet calcination rotary kiln product waste heat.
Wherein, the air quantity of blower fan 7 is 1000 ~ 3000m
3/ h, in the present embodiment, the air quantity of blower fan 7 is specially 2000m
3/ h.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, adopt direct absorbing type waste heat recovering mechanism, the air entered from charging aperture and the discharging opening at cooling cylinder 5 two ends is aspirated by blower fan 7, air carries out heat convection in cooling cylinder 5 inside with high temperature pellet surface and is heated, hot-air is blasted cyclone dust collectors 901 by blower fan 7 again and carries out udst separation, hot-air after udst separation enters the air intake of burner 1 by deduster discharge pipe 802, for the flame combustion of burner 1 provides preheated air, realize the recovery to pellet calcination rotary kiln product waste heat, take output as the bioceramic filtrate rotary kiln of 80t/ days be example, temperature in product introduction cooling cylinder 5 is about 900 DEG C, as calculated, after reclaiming product waste heat by direct absorbing type waste heat recovering mechanism, can by about the temperature increase to 400 of preheated air DEG C, this process can reclaim about 35.3% of product waste heat, energy-saving effect is very remarkable.
In the present embodiment, the residual heat resources that pellet after high-temperature calcination carries with the Convective Heat Transfer of air in be fully absorbed utilization, the hot-air formed is combustion-supporting as the combustion air of burner 1, improves efficiency of combustion and the combustion efficiency of burner 1, meets the recycling economy principle of energy-saving and emission-reduction; And air is direct and high temperature pellet surface carries out heat convection, air mass flow and flow velocity are all comparatively large, and this pellet is directly better compared to traditional indirect type of cooling cooling effect by air cooled mode, and energy recovery waste heat resource, save cost, kill two birds with one stone.
In the present embodiment, after adopting direct absorbing type waste heat recovering mechanism, pellet in cooling cylinder 5 after high-temperature calcination is lowered the temperature rapidly, adopting traditional cool water shower mode to lower the temperature to pellet, having saved a large amount of electric power consumed in water resource and cooling water circulation spray process without the need to continuing; And avoiding because of long-term cool water shower, severe oxidation corrosion cooling device, increases the phenomenon of overhaul of the equipments and maintenance cost, also avoids cooling cylinder 5 surrounding to produce a large amount of vapours, improve operating environment.
In the present embodiment, adopt cyclone dust collectors 901 that the hot-air containing solid dust particle is carried out udst separation, in order to avoid dust-laden hot-air blocking burner 1; And the air avoided in a large number with solid dust particle when adopting traditional processing technology is along with pellet is from the discharge of cooling cylinder 5 discharging opening, pollutes surrounding air, reduces the phenomenon of air quality.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, on existing equipment basis, only do less change can realize, and improvement cost is lower, and Operation and maintenance are convenient, and overall economic efficiency is remarkable.
Embodiment 2
The pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, its basic structure is identical with embodiment 1, and its difference is: cross bar 10 is channel-section steel; The length direction of horizontal face, air inlet 1401 place and induced duct wind inlet section 601 is the angle of 60 °; Lower air inlet 1402 is 3 manholes, and the diameter of each manhole is 100mm, and the spacing of adjacent circular through hole is 150mm; The entrance point of induced duct wind inlet section 601 is positioned at cooling cylinder 5 midpoint, and the caliber of induced duct wind inlet section 601, induced duct soaking zone 602, deduster blast pipe 801 and deduster discharge pipe 802 is 500mm.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery method of the present embodiment, its basic step is identical with embodiment 1, and its difference is: the air quantity of blower fan 7 is 3000m
3/ h.
Embodiment 3
The pellet calcination rotary kiln product waste heat direct absorbing type recovery system of the present embodiment, its basic structure is identical with embodiment 1, and its difference is: cross bar 10 is square steel; The length direction of horizontal face, air inlet 1401 place and induced duct wind inlet section 601 is the angle of 30 °; Lower air inlet 1402 is 8 manholes, and the diameter of each manhole is 10mm, and the spacing of adjacent circular through hole is 20mm; The entrance point of induced duct wind inlet section 601 is positioned at cooling cylinder 5 mid point and offsets 500mm place to the right, and the caliber of induced duct wind inlet section 601, induced duct soaking zone 602, deduster blast pipe 801 and deduster discharge pipe 802 is 150mm.
The pellet calcination rotary kiln product waste heat direct absorbing type recovery method of the present embodiment, its basic step is identical with embodiment 1, and its difference is: the air quantity of blower fan 7 is 1000m
3/ h.
Schematically above be described the utility model and embodiment thereof, this description does not have restricted, and also just one of the embodiment of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (8)
1. a pellet calcination rotary kiln product waste heat direct absorbing type recovery system, comprises burner (1), combustion chamber (2), rotary kiln (3), blanking chute (4), cooling cylinder bearing block, cooling cylinder driving wheel and cooling cylinder (5); It is characterized in that: also comprise direct absorbing type waste heat recovering mechanism;
Above-mentioned direct absorbing type waste heat recovering mechanism comprises induced duct, blower fan (7) and dust arrester, the entrance point of induced duct stretches into cooling cylinder (5) inside, the port of export of induced duct is connected with the air inlet of blower fan (7), the air outlet of blower fan (7) is connected with the import of dust arrester, and the outlet of dust arrester is connected with the air intake of burner (1); The charging aperture of described cooling cylinder (5) and the equal opening of discharging opening are arranged.
2. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 1, it is characterized in that: described induced duct comprises induced duct wind inlet section (601) and induced duct soaking zone (602), induced duct soaking zone (602) is positioned between cooling cylinder (5) and blower fan (7), the outside parcel insulation material of induced duct soaking zone (602); Described dust arrester is cyclone dust collectors (901), and deduster air inlet (902) is provided with deduster blast pipe (801), and deduster air outlet (903) is provided with deduster discharge pipe (802); The entrance point of induced duct wind inlet section (601) stretches into cooling cylinder (5) inside, the port of export of induced duct wind inlet section (601) is connected with the entrance point of induced duct soaking zone (602), the port of export of induced duct soaking zone (602) is connected with the air inlet of blower fan (7), and the air outlet of blower fan (7) is connected with deduster blast pipe (801); Deduster discharge pipe (802) is connected with the air intake of burner (1).
3. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 2, it is characterized in that: also comprise wind inlet section fixture, above-mentioned wind inlet section fixture comprises cross bar (10), suspension rod (11) and pole (12), suspension rod (11) is fixed on the outside support of combustion chamber (2), and pole (12) fixes on the ground; Described cross bar (10) runs through the inside of cooling cylinder (5), and one end and the suspension rod (11) of cross bar (10) fix, and the other end and the pole (12) of cross bar (10) fix; Described induced duct wind inlet section (601) is fixed on cross bar (10); Described cyclone dust collectors (901) are located on cyclone dust collectors base (13).
4. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 2, it is characterized in that: the entrance point of described induced duct wind inlet section (601) is called horizontal air inlet (1401), the length direction of this horizontal air inlet (1401) face, place and induced duct wind inlet section (601) is the angle of 30 ° ~ 60 °, and the opening of horizontal air inlet (1401) is tilted to down.
5. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 2, it is characterized in that: the downside of described induced duct wind inlet section (601) is provided with lower air inlet (1402), lower air inlet (1402) is near the entrance point of induced duct wind inlet section (601).
6. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 3, is characterized in that: described cross bar (10) is shaped steel; The insulation material of induced duct soaking zone (602) outside parcel is heat-preservation cotton.
7. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 5, it is characterized in that: described lower air inlet (1402) is 3 ~ 8 manholes, the diameter of each manhole is 10 ~ 100mm, and the spacing of adjacent circular through hole is 20 ~ 150mm.
8. a kind of pellet calcination rotary kiln product waste heat direct absorbing type recovery system according to claim 2 ~ 7 any one, is characterized in that: the entrance point of induced duct wind inlet section (601) is positioned at the scope of cooling cylinder (5) mid point to both sides skew 0 ~ 500mm; The caliber of induced duct wind inlet section (601), induced duct soaking zone (602), deduster blast pipe (801) and deduster discharge pipe (802) is 150 ~ 500mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520537334.2U CN204757718U (en) | 2015-07-22 | 2015-07-22 | Aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520537334.2U CN204757718U (en) | 2015-07-22 | 2015-07-22 | Aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949537A (en) * | 2015-07-22 | 2015-09-30 | 安徽工业大学 | Direct absorption type product waste heat recovery system and method for granule calcination rotary kiln |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949537A (en) * | 2015-07-22 | 2015-09-30 | 安徽工业大学 | Direct absorption type product waste heat recovery system and method for granule calcination rotary kiln |
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