CN203568958U - Low-temperature band type drying device using residual heat of flue gas - Google Patents
Low-temperature band type drying device using residual heat of flue gas Download PDFInfo
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- CN203568958U CN203568958U CN201320739127.6U CN201320739127U CN203568958U CN 203568958 U CN203568958 U CN 203568958U CN 201320739127 U CN201320739127 U CN 201320739127U CN 203568958 U CN203568958 U CN 203568958U
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Abstract
The utility model provides a low-temperature band type drying device using residual heat of flue gas. The low-temperature band type drying device comprises a boiler body, a low-temperature band type drier, an air inlet pipe, a dividing wall type phase change heat exchanger, a direct flue gas residual heat recovering device and an air heater, wherein the dividing wall type phase change heat exchange comprises a heat absorbing section and a heat releasing section; the heat releasing section of the dividing wall type phase change heat exchange, the direct flue gas residual heat recovering device and the air heater are connected in sequence to a circulating pipeline; a heat transfer medium is arranged in the circulating pipeline; the circulating pipeline is provided with a circulating pump; the air inlet pipe is connected with the air inlet of the air heater; the air outlet of the air heater is connected with the low-temperature band type drier; the direct flue gas residual heat recovering device and the heat absorbing section of the dividing wall type phase change heat exchanger are arranged in a smoke exhaust channel. By adopting the low-temperature band type drying device, the residual heat of flue gas is utilized to the maximum extent. Moreover, the wall temperature of the heat absorbing section of the dividing wall type phase change heat exchanger can be regulated, so that low-temperature corrosion of the dividing wall type phase change heat exchanger is avoided.
Description
Technical field
The utility model relates to mummification field, relates in particular to a kind of device that utilizes the fume afterheats such as incinerator, coal and oil boiler, process furnace to make the mummification such as mud, fire coal, biomass fuel.
Background technology
Along with improving constantly of the level of urbanization, sewage treatment facility construction has obtained high speed development, but the construction of Sewage Plant and operation are accompanied by a large amount of excess sludges and produce, in these mud, contain a large amount of pollutents environment has been caused to very large impact, so effectively also stable lignin-sludge has become an important problem.
What extensively promoted at present is to utilize the mode that heat drying technique combines with UTILIZATION OF VESIDUAL HEAT IN to carry out drying and other treatment to mud.According to the difference of Btu utilization form, heat drying can be divided into direct type heat drying and indirect type heat drying.Direct type heat drying is that high-temperature flue gas is directly introduced to moisture eliminator, by the contacting of flue gas and mud, convection current, carries out heat exchange mummification.The feature of this way is that the efficiency of Btu utilization is high, but because high-temperature flue gas continues to enter low temperature belt-type drying machine, therefore there is the useless flue gas directly contacting after special processing, could discharge with mud, and the latent heat of dried using waste heat from tail gas and water vapour is not utilized effectively, thermo-efficiency is low.Meanwhile, flue gas directly contacts the heavy metal composition that can make in flue gas with mud and penetrates in mud, thereby cause the follow-up cost of disposal of mud to raise, and the acidic substance that exist in flue gas (as acid dew etc.) also have certain corrosive nature to drying equipment, this will inevitably affect the work-ing life of drying equipment.Indirect type heat drying is that the heat of high-temperature flue gas is passed through to heat exchanger, passes to certain medium, and these media can be thermal oil, steam or air etc.Medium circulates in the loop of a sealing, and is not contacted by the material of mummification, and after heat is partly utilized, flue gas normally discharges.
Name is called the Chinese patent CN1686879A of " the tandem sludge drying system that utilizes remaining heat of flue gas from steam power plant ", a kind of flue gas contact mummification sludge system that directly utilizes is disclosed, wherein directly utilizing flue gas dewatered sludge technology is that flue gas is directly mixed and contacts dewatered sludge in revolution drying kiln with wet mud, the utilising efficiency of its energy is higher beyond doubt, but its shortcoming is also apparent as previously mentioned, there were a large amount of flue gases that directly contact after special processing, could discharge with mud, this will inevitably improve processing costs, and the acidic substance that may exist in flue gas also have certain corrosive nature to drying equipment, affected the work-ing life of drying equipment.
Can reach a conclusion in sum: direct heating mode, because required energy Source Type is more single, is subject to certain limitation, and wherein the exhaust gas volumn of coal furnace, incinerator is large, has again acid attack material, more difficult use; Indirect heating mode can be used the various energy, such as flue gas, fire coal, Sweet natural gas etc., but can corrode because flue-gas temperature is lower the equipment contacting with flue gas.So how the limitation of comprehensive above sludge drying technique, can guarantee the permanent use of equipment when sludge drying, can avoid again UTILIZATION OF VESIDUAL HEAT IN efficiency low is a problem demanding prompt solution.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of and improves utilization rate of waste heat, and guarantees the low temperature belt-type drying device that utilizes fume afterheat in the work-ing life of equipment, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts the first technical scheme:
A kind of low temperature belt-type drying device that utilizes fume afterheat, comprise boiler body, low temperature belt-type drying machine, also comprise inlet pipe, dividing wall type phase-change heat-exchanger, direct type flue gas waste heat recovery apparatus and airheater, described dividing wall type phase-change heat-exchanger comprises endotherm section and heat release section, the heat release section of described dividing wall type phase-change heat-exchanger, direct type flue gas waste heat recovery apparatus and airheater are connected in turn on circulation line, in circulation line, be provided with heat-transfer medium, circulation line is provided with recycle pump, described inlet pipe is connected with the inlet mouth of airheater, the air outlet of airheater is connected with low temperature belt-type drying machine, described direct type flue gas waste heat recovery apparatus and dividing wall type phase-change heat-exchanger endotherm section are arranged in discharge flue.
Preferably, the venting port of described low temperature belt-type drying machine is connected with exhaust gas processing device, between low temperature belt-type drying machine and exhaust gas processing device, be also provided with condenser, the venting port of condenser is connected with inlet pipe by air recovery channel, is also provided with blower fan between described condenser and exhaust gas processing device.
Further, also comprise apparatus for reusing residual heat, described apparatus for reusing residual heat comprises endothermic section and heat unit, and endothermic section is arranged on the pipeline between described low temperature belt-type drying machine and condenser, and heat unit is connected with inlet pipe.
Preferably, the endotherm section of described direct type flue gas waste heat recovery apparatus and dividing wall type phase-change heat-exchanger is arranged in discharge flue through direction successively by flue gas flow.
Preferably, between described inlet pipe and airheater, be provided with blower fan.
Another kind of technical scheme of the present utility model: a kind of low temperature belt-type drying device that utilizes fume afterheat, comprise boiler body, low temperature belt-type drying machine, also comprise inlet pipe, blower fan, dividing wall type phase-change heat-exchanger and direct type flue gas waste heat recovery apparatus, described dividing wall type phase-change heat-exchanger comprises endotherm section and heat release section, described inlet pipe, blower fan, the heat release section of dividing wall type phase-change heat-exchanger, direct type flue gas waste heat recovery apparatus is connected by pipeline successively with low temperature belt-type drying machine, the endotherm section of described direct type flue gas waste heat recovery apparatus and dividing wall type phase-change heat-exchanger is arranged in discharge flue.
Preferably, the venting port of described low temperature belt-type drying machine is connected with exhaust gas processing device, between low temperature belt-type drying machine and exhaust gas processing device, be also provided with condenser, the venting port of condenser is connected with the heat release section of dividing wall type phase-change heat-exchanger by air recovery channel.
Further, also comprise apparatus for reusing residual heat, described apparatus for reusing residual heat comprises endothermic section and heat unit, and described endothermic section is arranged on the pipeline between low temperature belt-type drying machine and condenser, and heat unit is connected with inlet pipe.
Further, between described condenser and exhaust gas processing device, be also provided with blower fan.
Preferably, the endotherm section of described direct type flue gas waste heat recovery apparatus and dividing wall type phase-change heat-exchanger is arranged in discharge flue through direction successively by flue gas flow.
As mentioned above, the low temperature belt-type drying device that utilizes fume afterheat of the present utility model, has following beneficial effect:
The utility model is connected with dividing wall type phase-change heat-exchanger by direct type flue gas waste heat recovery apparatus, fume afterheat is utilized to a greater extent, and the utility model can regulate the wall temperature of dividing wall type phase-change heat-exchanger endotherm section, avoid the endotherm section of dividing wall type phase-change heat-exchanger to be subject to low temperature corrosion, reduce funnel temperature simultaneously, more independent flue gas waste heat recovery dewatered sludge, the fume afterheat space of its recovery is larger, and the efficiency of heat energy utilization is higher.
Accompanying drawing explanation
Fig. 1 is the utility model the first embodiment structure iron.
Fig. 2 is the utility model the second embodiment structure iron.
Fig. 3 is the structural representation of the utility model dividing wall type phase-change heat-exchanger.
Embodiment
Structure that Figure of description illustrates, ratio, size etc., all contents in order to coordinate specification sheets to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionlity or size, do not affecting under the effect that the utility model can produce and the object that can reach, all should still drop in the scope that technology contents that the utility model discloses can contain.Simultaneously, in this specification sheets, quote as " on ", the term such as D score, 'fornt', 'back', " centre ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, without essence, changing under technology contents, when being also considered as the enforceable category of the utility model.
The utility model utilizes the first embodiment structure iron of the low temperature belt-type drying device of fume afterheat as shown in Figure 1, comprise boiler body 9, low temperature belt-type drying machine 4, also comprise inlet pipe 3, dividing wall type phase-change heat-exchanger 2, direct type flue gas waste heat recovery apparatus 1 and airheater 6, as shown in Figure 3, described dividing wall type phase-change heat-exchanger 2 comprises endotherm section 21 and heat release section 22, endotherm section 21 is connected with downtake 24 by upcast 23 with heat release section 22, the heat release section 22 of described dividing wall type phase-change heat-exchanger 2, direct type flue gas waste heat recovery apparatus 1 and airheater 6 are connected in turn on circulation line, in circulation line, be provided with heat-transfer medium, described heat-transfer medium is water or heat transfer wet goods, circulation line is provided with recycle pump 12, described inlet pipe 3 is connected with the inlet mouth of airheater 6, the air outlet of airheater 6 is connected with low temperature belt-type drying machine 4, the endotherm section 21 of described direct type flue gas waste heat recovery apparatus 1 and dividing wall type phase-change heat-exchanger 2 is arranged in discharge flue 10.So the venting port of low temperature belt-type drying machine 4 is also connected with an exhaust gas processing device 5, through exhaust gas processing device 5 air after treatment, enter again the external world.Between low temperature belt-type drying machine 4 and exhaust gas processing device 5, be also provided with condenser 7, described condenser 7 can pass through water-cooled or air cooling way water coolant steam.Between described condenser 7 and exhaust gas processing device 5, be also provided with blower fan 51, between described inlet pipe 3 and airheater 6, be provided with blower fan 31.When the air with water vapour of discharging from low temperature belt-type drying machine 4 passes through condenser 7, water vapour can be condensed into water and be discharged from, portion of air is processed rear discharge by blower fan 51 suction exhaust gas processing devices 5, and portion of air is drawn back by blower fan 31 the pipeline recycle again that inlet pipe 3 is connected with airheater 6 by air recovery channel 71.
In the present embodiment, also comprise apparatus for reusing residual heat 8, described apparatus for reusing residual heat 8 comprises endothermic section 81 and heat unit 82, endothermic section 81 is arranged on the pipeline between described low temperature belt-type drying machine 4 and condenser 7, and heat unit 82 is connected with the pipeline of inlet pipe 3.In the air that described endothermic section 81 can be discharged from low temperature belt-type drying machine 4, absorb heat and transfer heat to heat unit 82, heat unit 82 passes to heat the air that enters pipeline from inlet pipe 3 again, makes air obtain preheating.
In the present embodiment, the flow direction of flue gas in discharge flue 10 as shown by the arrows in Figure 1, along with flowing of flue gas, the temperature of flue gas can reduce gradually, so ducted medium temperature is raise to greatest extent the endotherm section 21 of direct type flue gas waste heat recovery apparatus 1 and dividing wall type phase-change heat-exchanger 2 is installed to parallel-series by flue gas flow in discharge flue 10 successively through direction in order to make full use of fume afterheat, do is like this to have utilized temperature difference principle, even if flue-gas temperature can reduce gradually along with flowing, but be but greater than all the time the temperature of heat-transfer medium, heat-transfer medium just can absorb heat always from flue gas.Dividing wall type phase-change heat-exchanger 2 reclaims the fume afterheat of low-grade (low temperature), prevent the corrosion of acid dew simultaneously, ducted medium can absorb the heat of the heat release section 22 of dividing wall type phase-change heat-exchanger 2, and the medium after heat absorption enters into direct type flue gas waste heat recovery apparatus 1 again; The advantage of direct type flue gas waste heat recovery apparatus is to have a narrow range of temperature, and heat-transfer medium can be heated to higher temperature, finally air very high temperature is treated to mummification material for mummification; This is the maximized fume afterheat of having recycled not only, also makes the efficiency of utilization of low temperature belt-type drying entire system be improved.
Because contain sour gas in flue gas, when cigarette temperature is high, they can exist with the form of gaseous state, when cigarette temperature is during lower than a certain temperature, their meetings are combined into sulfuric acid and corrode heat-exchange equipment with the water vapour in flue gas, so in order to control wall temperature well, prevent the corrosion of acid dew, in the present embodiment, also comprise temperature-control device, described temperature-control device is equipped with temperature point on the wall of the endotherm section 21 of low temperature belt-type drying machine 4 inside and dividing wall type phase-change heat-exchanger 2, staff can carry out Real-Time Monitoring to temperature, and by regulating recycle pump 12 to adjust in time and control the temperature of the endotherm section 21 of low temperature belt-type drying machine 4 and dividing wall type phase-change heat-exchanger 2, prevent that acid dew from corroding and guaranteeing to treat the mummification temperature of mummification material.
Working process and the principle of the present embodiment are as follows:
The air of mummification after mummification material discharged from the venting port of low temperature belt-type drying machine 4, discharge air in low temperature belt-type drying machine 4 after release of heat temperature be reduced to 85 ℃ of left and right, in order to make full use of waste heat, first the air with water vapour of discharging from low temperature belt-type drying machine 4 passes through the endothermic section 81 of apparatus for reusing residual heat 8, the heat of air is absorbed by the endothermic section 81 of apparatus for reusing residual heat 8 and passes to heat unit 82, heat unit 82 is connected the preheating of air newly entering with the pipeline of inlet pipe 3, make the temperature of air be elevated to 70 ℃ of left and right, when the air of process circulation and preheating is again through airheater 6 like this, temperature just can further raise, the complete mud of mummification or other air with water vapour after mummification material enter in condenser 7 again, water vapour is condensed into water and discharges, a condensed air part enters tail gas disposal plant 5 and processes rear discharge, a part by air recovery channel 71 waste heats again profit enter airheater 6 and by ducted water, further heated again, the chances are the 110 ℃ of left and right of temperature now, then in low temperature belt-type drying machine 4, treat mummification material and carry out mummification.Air is because of the effect of blower fan 31, and the heat unit 82 of passing through successively airheater 6, condenser 7, apparatus for reusing residual heat 8, is finally recovered, and forms circulation loop b, as shown in single direction of arrow in Fig. 1.In device operational process, the temperature point that is arranged in low temperature belt-type drying machine 4 carries out Real-Time Monitoring to the temperature of low temperature belt-type drying machine 4, the wall temperature that is positioned at temperature point on dividing wall type phase-change heat-exchanger 2 endotherm section 21 to dividing wall type phase-change heat-exchanger 2 carries out Real-Time Monitoring, two place's temperature points are passed to Controlling System by signal again, Controlling System is by regulating recycle pump 12 to regulate the wall surface temperature of the endotherm section 21 of temperature in low temperature belt-type drying machine 4 and dividing wall type phase-change heat-exchanger 2, make the applicable mummification of temperature in low temperature belt-type drying machine 4 treat mummification material, and make the wall surface temperature of endotherm section 21 all the time higher than acid dew-point temperature, guarantee the safe operation of dividing wall type phase-change heat-exchanger 2, prevent from being corroded.
Be illustrated in figure 2 the second embodiment structure iron that the utility model utilizes the low temperature belt-type drying device of fume afterheat, comprise boiler body 9, low temperature belt-type drying machine 4, also comprise inlet pipe 3, blower fan 11, dividing wall type phase-change heat-exchanger 2 and direct type flue gas waste heat recovery apparatus 1, described dividing wall type phase-change heat-exchanger 2 comprises endotherm section 21 and heat release section 22 as shown in Figure 3, and endotherm section 21 is connected with downtake 24 by upcast 23 with heat release section 22.Heat release section 22, direct type flue gas waste heat recovery apparatus 1 and the low temperature belt-type drying machine 4 of described inlet pipe 3, blower fan 11, dividing wall type phase-change heat-exchanger 2 are connected by pipeline successively, and the endotherm section 21 of described direct type flue gas waste heat recovery apparatus 1 and dividing wall type phase-change heat-exchanger 2 is arranged in discharge flue 10.In the present embodiment, the venting port of described low temperature belt-type drying machine 4 is also connected with an exhaust gas processing device 5, through exhaust gas processing device 5 air after treatment, enters the external world again.Between described low temperature belt-type drying machine 4 and exhaust gas processing device 5, be also provided with condenser 7, when the air with water vapour of discharging from low temperature belt-type drying machine 4 passes through condenser 7, water vapour can be condensed into water and be discharged from, and described condenser 7 can pass through water-cooled or air cooling way water coolant steam.Between described condenser 7 and exhaust gas processing device 5, be also provided with blower fan 51.In order to improve the whole efficiency of device, a cooled air part is drawn into exhaust gas processing device 5 by blower fan 51 and processes rear discharge, another part recycles, and the air recycling enters dividing wall type phase-change heat-exchanger 2 by air recovery channel 71 and again utilizes from the venting port of condenser 7 is discharged.
The air of discharging from low temperature belt-type drying machine 4 low temperature belt-type drying machine 4 after release of heat temperature be reduced to 85 ℃ of left and right.So also comprise in the present embodiment apparatus for reusing residual heat 8, described apparatus for reusing residual heat 8 comprises endothermic section 81 and heat unit 82, described endothermic section 81 is arranged on the pipeline between low temperature belt-type drying machine 4 and condenser 7, and heat unit 82 is connected with inlet pipe 3 pipelines.In the air that described endothermic section 81 can be discharged from low temperature belt-type drying machine 4, absorb heat, and transfer heat to the air of the heat unit 82 of flowing through, make air obtain preheating.
The endotherm section 21 of the flue gas waste heat recovery apparatus of direct type described in the present embodiment 1 and dividing wall type phase-change heat-exchanger 2 is by flue gas flow in direction is arranged on discharge flue 10, and the object arranging is like this identical with the object of the first embodiment.In the present embodiment, be also provided with temperature-control device, the effect of described temperature-control device and the position of temperature point are identical with the first embodiment.
Working process of the present utility model and principle are as follows:
As shown in the direction of arrow in Fig. 2, the heat release section 22 of direct type flue gas waste heat recovery apparatus 1, dividing wall type phase-change heat-exchanger 2, low temperature belt-type drying machine 4 and blower fan 11 form a circulation loop by pipeline, and inlet pipe 3 provides air for circulation loop.Flue-gas temperature in discharge flue 10 is probably 130 ℃～160 ℃, the heat of flue gas flow in direct type flue gas waste heat recovery apparatus 1 and flue gas is by the absorption of air of flowing through in direct type flue gas waste heat recovery apparatus 1, air after intensification enters into low temperature belt-type drying machine 4 dewatered sludges again or other treat mummification material, in drying process, mud or other water vapour for the treatment of that mummification material evaporates are discharged from the venting port of low temperature belt-type drying machine 4 with air, air now probably has 85 ℃, air passes through the endothermic section 81 of apparatus for reusing residual heat 8 again, the heat unit 82 that heat was absorbed and passed to apparatus for reusing residual heat 8 newly enters the air of circulation loop for preheating.By the air of apparatus for reusing residual heat 8, enter condenser 5, airborne water vapour is cooled to water and is discharged from, then because the effect of blower fan 51, most of air can enter exhaust gas processing device 5 and discharge after treatment, and another part air enters into by air recovery channel 71 that circulating line is reused for dewatered sludge or other treat mummification material.Also comprise in the present embodiment temperature-control device, in the utility model overall operation process, the temperature point that is arranged in low temperature belt-type drying machine to the temperature of low temperature belt-type drying machine 4 carry out Real-Time Monitoring, the effect that is positioned at the temperature point on dividing wall type phase-change heat-exchanger 2 is identical with the effect of the first embodiment.
In sum, the low temperature belt-type drying device that utilizes fume afterheat of the present utility model, can improve the utilization ratio of fume afterheat, and reduces the corrosion to equipment.So, thereby the utility model has effectively overcome practical problemss more of the prior art, utilizing the utility value that the aspects such as smoke residual heat to dry sludge, fire coal, biomass fuel are very high and using meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects under the prerequisite without prejudice to overall thought, to improve, and for person skilled in the art scholar, all can, under spirit of the present utility model and category, can above-described embodiment be modified or be changed.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (10)
1. one kind is utilized the low temperature belt-type drying device of fume afterheat, comprise boiler body (9), low temperature belt-type drying machine (4), it is characterized in that: also comprise inlet pipe (3), dividing wall type phase-change heat-exchanger (2), direct type flue gas waste heat recovery apparatus (1) and airheater (6), described dividing wall type phase-change heat-exchanger (2) comprises endotherm section (21) and heat release section (22), the heat release section (22) of described dividing wall type phase-change heat-exchanger (2), direct type flue gas waste heat recovery apparatus (1) and airheater (6) are connected in turn on circulation line, in circulation line, be provided with heat-transfer medium, circulation line is provided with recycle pump (12), described inlet pipe (3) is connected with the inlet mouth of airheater (6), the air outlet of airheater (6) is connected with low temperature belt-type drying machine (4), the endotherm section (21) of described direct type flue gas waste heat recovery apparatus (1) and dividing wall type phase-change heat-exchanger (2) is arranged in discharge flue (10).
2. the low temperature belt-type drying device that utilizes fume afterheat according to claim 1, it is characterized in that: the venting port of described low temperature belt-type drying machine (4) is connected with exhaust gas processing device (5), between low temperature belt-type drying machine (4) and exhaust gas processing device (5), be also provided with condenser (7), the venting port of condenser (7) is connected with inlet pipe (3) by air recovery channel (71), between described condenser (7) and exhaust gas processing device (5), is also provided with blower fan (51).
3. the low temperature belt-type drying device that utilizes fume afterheat according to claim 2, it is characterized in that: also comprise apparatus for reusing residual heat (8), described apparatus for reusing residual heat (8) comprises endothermic section (81) and heat unit (82), endothermic section (81) is arranged on the pipeline between described low temperature belt-type drying machine (4) and condenser (7), and heat unit (82) is connected with inlet pipe (3).
4. the low temperature belt-type drying device that utilizes fume afterheat according to claim 1, is characterized in that: the endotherm section (21) of described direct type flue gas waste heat recovery apparatus (1) and dividing wall type phase-change heat-exchanger (2) by flue gas flow in direction is arranged on discharge flue (10) successively.
5. the low temperature belt-type drying device that utilizes fume afterheat according to claim 1, is characterized in that: between described inlet pipe (3) and airheater (6), be provided with blower fan (31).
6. one kind is utilized the low temperature belt-type drying device of fume afterheat, comprise boiler body (9), low temperature belt-type drying machine (4), it is characterized in that: also comprise inlet pipe (3), blower fan (11), dividing wall type phase-change heat-exchanger (2) and direct type flue gas waste heat recovery apparatus (1), described dividing wall type phase-change heat-exchanger (2) comprises endotherm section (21) and heat release section (22), described inlet pipe (3), blower fan (11), the heat release section (22) of dividing wall type phase-change heat-exchanger (2), direct type flue gas waste heat recovery apparatus (1) is connected by pipeline successively with low temperature belt-type drying machine (4), the endotherm section (21) of described direct type flue gas waste heat recovery apparatus (1) and dividing wall type phase-change heat-exchanger (2) is arranged in discharge flue (10).
7. the low temperature belt-type drying device that utilizes fume afterheat according to claim 6, it is characterized in that: the venting port of described low temperature belt-type drying machine (4) is connected with exhaust gas processing device (5), between low temperature belt-type drying machine (4) and exhaust gas processing device (5), be also provided with condenser (7), the venting port of condenser (7) is connected with the heat release section (22) of dividing wall type phase-change heat-exchanger (2) by air recovery channel (71).
8. the low temperature belt-type drying device that utilizes fume afterheat according to claim 7, it is characterized in that: also comprise apparatus for reusing residual heat (8), described apparatus for reusing residual heat (8) comprises endothermic section (81) and heat unit (82), described endothermic section (81) is arranged on the pipeline between low temperature belt-type drying machine (4) and condenser (7), and heat unit (82) is connected with inlet pipe (3).
9. the low temperature belt-type drying device that utilizes fume afterheat according to claim 7, is characterized in that: between described condenser (7) and exhaust gas processing device (5), be also provided with blower fan (51).
10. the low temperature belt-type drying device that utilizes fume afterheat according to claim 6, is characterized in that: described direct type flue gas waste heat recovery apparatus (1) and dividing wall type phase-change heat-exchanger (2) endotherm section (21) by flue gas flow in direction is arranged on discharge flue (10) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739127.6U CN203568958U (en) | 2013-11-20 | 2013-11-20 | Low-temperature band type drying device using residual heat of flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739127.6U CN203568958U (en) | 2013-11-20 | 2013-11-20 | Low-temperature band type drying device using residual heat of flue gas |
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| CN203568958U true CN203568958U (en) | 2014-04-30 |
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| CN201320739127.6U Withdrawn - After Issue CN203568958U (en) | 2013-11-20 | 2013-11-20 | Low-temperature band type drying device using residual heat of flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649559A (en) * | 2013-11-20 | 2015-05-27 | 霍特安热能技术（江苏）有限公司 | Low-temperature belt-type drying apparatus utilizing residual heat from flue gas |
| CN109373332A (en) * | 2018-09-07 | 2019-02-22 | 上海明华电力技术工程有限公司 | A kind of flue gas waste heat recovery system and method for coal-fired coupling garbage power |
| CN110095152A (en) * | 2019-04-29 | 2019-08-06 | 泉州采荠贸易有限公司 | A kind of battery of timely decreasing loss resin solidification dry kiln low-temperature warning system |
-
2013
- 2013-11-20 CN CN201320739127.6U patent/CN203568958U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649559A (en) * | 2013-11-20 | 2015-05-27 | 霍特安热能技术（江苏）有限公司 | Low-temperature belt-type drying apparatus utilizing residual heat from flue gas |
| CN109373332A (en) * | 2018-09-07 | 2019-02-22 | 上海明华电力技术工程有限公司 | A kind of flue gas waste heat recovery system and method for coal-fired coupling garbage power |
| CN110095152A (en) * | 2019-04-29 | 2019-08-06 | 泉州采荠贸易有限公司 | A kind of battery of timely decreasing loss resin solidification dry kiln low-temperature warning system |
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