CN116481035A - Dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated device and treatment method - Google Patents
Dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated device and treatment method Download PDFInfo
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- CN116481035A CN116481035A CN202310236292.8A CN202310236292A CN116481035A CN 116481035 A CN116481035 A CN 116481035A CN 202310236292 A CN202310236292 A CN 202310236292A CN 116481035 A CN116481035 A CN 116481035A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 102
- 238000009998 heat setting Methods 0.000 title claims abstract description 80
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- 238000004043 dyeing Methods 0.000 title claims abstract description 63
- 238000011084 recovery Methods 0.000 title claims abstract description 48
- 239000002918 waste heat Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 22
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/101—Arrangement of sensing devices for temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device, which comprises a preheating pipeline, a draught fan, a heat storage and incineration furnace and an exhaust pipeline which are connected in sequence; the preheating pipeline is of a double-layer sleeve type structure, an inner-layer waste gas pipeline and an outer-layer first heat extraction pipeline; the flow direction of the waste gas in the waste gas pipeline is opposite to the flow direction of the hot gas in the first heat extraction pipeline, and the hot gas in the first heat extraction pipeline reversely heats/keeps warm the waste gas in the waste gas pipeline; the cold end of the waste gas pipeline is connected with a waste gas outlet of the dyeing and finishing heat setting machine, and the hot end of the waste gas pipeline is connected with a draught fan; the hot end of the first heat extraction pipeline is connected with the incinerator incineration chamber of the heat storage incinerator, and the cold end of the first heat extraction pipeline is connected with the first heat exchange fan. The device processing method comprises the following steps: waste gas of the dyeing and finishing heat setting machine enters the heat storage incinerator for incineration treatment after being heated/insulated through a waste gas pipeline under the action of an induced draft fan, part of purified gas is directly discharged to the exhaust pipeline, and the other part of the purified gas is reversely heated/insulated through a first heat extraction pipeline under the action of a first heat exchange fan.
Description
Technical Field
The invention relates to the field of waste gas treatment of dyeing and finishing heat setting machines, in particular to a dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device and a treatment method.
Background
The printing and dyeing industry brings certain economic and social benefits and also causes serious atmospheric environmental pollution. The dyeing and finishing heat setting machine is a key device for finishing after textile printing and dyeing, the temperature is higher in the cloth heat setting process, so that a large amount of high-temperature oil fume waste gas is generated in a drying oven of the setting machine, the oil fume waste gas contains dye, dye auxiliary agents (containing wax, solvent, emulsifying agent and high molecular monomer), lubricating oil, fuzzing agent, fiber particles and other pollutants, the main components of the dyeing and finishing heat setting machine are aldehyde, ketone, hydrocarbon, fatty acid, alcohol, ester, lactone, heterocyclic compound and aromatic compound, and particularly the components of the dye auxiliary agents in the finishing of functional fabrics such as water resistance, flame retardance and the like are more complex when the lubricating oil agent is added in the weaving process of yarns. The large amount of emission of the pollutants directly or indirectly causes the frequent occurrence of atmospheric pollution problems such as haze and the like, threatens the physical health of people and influences the environmental safety.
Although there are various technologies and methods for treating the flue gas of the dyeing and finishing heat setting machine, a complete set of technologies and equipment which can effectively recycle heat energy, realize the efficient treatment of waste gas and have stable and reliable operation are not formed in practice. According to market research, the existing dyeing and finishing heat setting machine is basically provided with an exhaust gas treatment device mainly adopting high-voltage static electricity, and as the treatment technology mainly adopting static electricity only has a good effect on lampblack and particulate matters discharged in the heat setting process, the treatment technology has poor removal effect on pollution factors such as VOCs (volatile organic compounds), non-methane total hydrocarbons, odor concentration and the like. In addition, the energy consumption of the heat setting machine accounts for more than 60% of the whole dyeing and finishing processing process. Because the exhaust gas temperature is high, the comprehensive energy consumption utilization rate is low, most of heat energy is exhausted into the air through exhaust air, and the existing treatment process consumes energy again to cool the exhaust gas due to the characteristic that static electricity needs to be cooled, so that the requirements of energy conservation and carbon reduction are not met.
The heat accumulating and incinerating method is one of the most efficient means for treating waste gas containing organic pollutants at present, but because the dyeing and finishing heat setting machine contains oil smoke and fibers, the oil accumulation of the pipeline is easy to cause fire disaster, and the heat accumulating ceramics are blocked, so that heat setting enterprises reject the incinerating method to treat the tail gas of the heat setting machine.
The patent specification with publication number of CN 206280981U discloses a waste gas treatment and waste heat recovery device, when the device works, high-temperature waste gas generated by a shaping furnace sequentially enters an oxidation furnace through an air inlet pipeline and an inlet under the action of a fan, and a cracking reaction occurs in the oxidation furnace to crack organic matters in the waste gas into harmless substances such as carbon dioxide, water and the like, and simultaneously a large amount of heat is generated. And (3) allowing a part of the mixed gas after the cracking reaction to enter the heat exchanger through the outlet of the regenerator and the air outlet pipeline in sequence, performing heat exchange with fresh air entering the heat exchanger from the cold flow inlet, and finally discharging the part of the mixed gas to the atmosphere through a chimney. After heat exchange, fresh air has higher temperature and is then conveyed to a given type furnace in the shaping furnace to be preheated through a hot flow outlet and a preheating pipeline in sequence. The technology of the patent still does not relate to the problems of condensation blockage and the like of the outlet waste gas of the heat setting machine in the process of flowing to the heat storage cracking furnace.
According to the invention, a small amount of hot gas is led out after combustion to reversely heat/insulate the waste gas of the heat setting machine, so that the oil accumulation of a pipeline is prevented, and the safety technical obstacle is solved; then, organic matters are decomposed through high-temperature (generally above 760 ℃) thermal oxidation, and a high-efficiency contact heat exchange technology is adopted, a heat accumulating type exchanger is added into a thermal oxidation device, so that waste gas is further preheated; the regenerator has a counter-firing function, is provided with a gas igniter and a pipeline, can burn the inlet air at the bottom layer of the heat storage layer and is preferentially contacted with ceramic, so that the problem of blockage of the heat storage ceramic body due to oil smoke and fiber is solved; and then the oxidation reaction is carried out, the continuous operation of the system is maintained by fully utilizing the self-combustion or reaction heat release of the organic matters, the heat can be output from the heat storage incinerator, the effective utilization of the whole process heat is realized, and the double synergy of pollution reduction and carbon reduction is realized.
Disclosure of Invention
The invention provides a dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device, which aims at the characteristic of heat energy demand in heat setting production, prevents waste gas and oil smoke from condensing on a pipeline through a preheating technology to improve safety, utilizes the high temperature of heat setting waste gas and the heat value contained in pollutants, adopts a heat storage and incineration method, realizes waste heat recovery and utilization while efficiently treating waste gas, realizes pollution reduction and carbon reduction coordination, and can be widely applied to waste gas engineering treatment of dyeing and finishing heat setting machines.
The specific technical scheme is as follows:
the dyeing and finishing heat setting waste gas preheating type heat accumulating and incinerating waste heat recovering integrated device comprises a preheating pipeline, an induced draft fan, a heat accumulating and incinerating furnace and an exhaust pipeline which are connected in sequence;
the preheating pipeline is of a double-layer sleeve type structure, wherein the inner layer is an exhaust pipeline, and the outer layer is a first heat extraction pipeline; the flow direction of the exhaust gas in the exhaust gas pipeline is opposite to the flow direction of the hot gas in the first heat exhaust pipeline, and the hot gas in the first heat exhaust pipeline reversely heats/insulates the exhaust gas in the exhaust gas pipeline; the cold end of the waste gas pipeline is connected with a waste gas outlet of the dyeing and finishing heat setting machine, and the hot end of the waste gas pipeline is connected with an induced draft fan; the hot end of the first heat extraction pipeline is connected with an incineration chamber of the heat storage incinerator, and the cold end of the first heat extraction pipeline is connected with a first heat exchange fan.
In a preferred embodiment, the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that a filter is arranged between the cold end of the waste gas pipeline and the waste gas outlet of the dyeing and finishing heat setting machine, so that impurities such as fluff and fibers in the waste gas can be filtered.
In a preferred embodiment, the dyeing and finishing heat-setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that an insulating layer is arranged on the outer wall of the first heat exhausting pipeline so as to better lock heat and transfer the heat to the waste gas pipeline on the inner layer.
In a preferred embodiment, the dyeing and finishing heat-setting waste gas preheating type heat storage and incineration waste heat recovery integrated device further comprises a preheating control system, wherein the preheating control system is used for temperature monitoring and data feedback of the waste gas pipeline and the first heat extraction pipeline and gas flow control of the first heat exchange fan, so that the preheating operation is more accurate and flexible.
In a preferred embodiment, the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that the heat storage and incineration furnace is a three-chamber heat storage and incineration furnace or a rotary heat storage and incineration furnace.
In a preferred embodiment, the dyeing and finishing heat-setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that the heat storage and incineration furnace is provided with a heat storage chamber back burning function, and is provided with a gas igniter and a pipeline, so that the bottom layer air inlet of the heat storage layer can be burnt by preferentially contacting with ceramic, and the problem of blockage of the heat storage ceramic body due to oil smoke and fiber is solved.
Further preferably, the temperature of the back firing is 453-523K.
In a preferred embodiment, the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that an incineration chamber of the heat storage and incineration furnace is connected with a second heat extraction pipeline, and the other end of the second heat extraction pipeline is sequentially connected with a heat exchanger, a second heat exchange fan and an exhaust pipeline;
a preheated air pipeline externally connected with clean air is arranged in the heat exchanger, and the other end of the preheated air pipeline is connected with a drying oven of the dyeing and finishing heat setting machine;
heat exchange between the hot gas in the second heat rejection duct and the clean air in the preheated air duct takes place in the heat exchanger.
Further preferably, the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized in that heat preservation layers are arranged on the outer walls of the second heat extraction pipeline and the preheated air pipeline which are exposed in the environment, so that heat dissipation is avoided.
In a preferred embodiment, the integrated device for recovering waste heat of preheating type heat storage and incineration of dyeing and finishing heat setting waste gas further comprises a heat recovery control system, wherein the heat recovery control system is used for monitoring the temperature of the preheated air pipeline, feeding back data and controlling the gas flow of the second heat exchange fan, so that the operation of recovering heat to the dyeing and finishing heat setting machine is more accurate and flexible.
The dyeing and finishing heat setting waste gas preheating type heat accumulation and incineration waste heat recovery integrated device can be a plate heat exchanger, a heat pipe heat exchanger, a fin pipe heat exchanger or a shell and tube heat exchanger.
The invention relates to a dyeing and finishing heat setting waste gas preheating type heat accumulation and incineration waste heat recovery integrated device, which is characterized in that when the dyeing and finishing heat setting waste gas preheating type heat accumulation and incineration waste heat recovery integrated device works, waste gas of a heat setting machine is concentrated through a pipeline and then enters a preheating pipeline, the waste gas is heated or insulated by a first heat extraction pipeline in the waste gas pipeline, and then enters a heat accumulation incinerator for incineration treatment after being pressurized by a draught fan, part of incinerated purified gas is discharged through the exhaust pipeline, part of incinerated purified gas is led out from an incinerator incineration chamber, one part of incinerated purified gas is led into the first heat extraction pipeline of the preheating pipeline to preheat waste gas, the other part of incinerated purified gas is led into the hot end of a heat exchanger through a second heat extraction pipeline, after heat exchange is carried out between the heat setting machine and clean air, cooled purified gas is led out through the exhaust pipeline after heat exchange is carried out in the heat exchanger, clean air enters the heat exchanger from the cold end of the heat exchanger through the second heat exchange fan, and then is connected into a heat setting machine oven in a dispersing mode through a preheating air pipeline.
The invention also provides a dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated treatment method, and the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is adopted;
the dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated treatment method comprises the following steps:
waste gas from the dyeing and finishing heat setting machine passes through the waste gas pipeline under the action of the induced draft fan, is heated/preserved and then enters the heat storage incinerator, the purified gas after incineration treatment is partially directly discharged to the exhaust pipeline, and part of the purified gas is reversely heated/preserved through the first heat discharging pipeline under the action of the first heat exchanging fan.
In a preferred embodiment, the dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated treatment method has the incineration temperature in the incineration chamber of the heat storage incinerator of 993-1373K and the waste gas residence time of 0.6-1.5s.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the characteristics of waste gas, the gas pipeline heat preservation layer is arranged, a small amount of waste gas of the hot gas reverse heating/heat preservation heat setting machine after combustion is led out, oil accumulation of a pipeline is prevented, and the preheating control system is arranged, so that the temperature control of the waste gas pipeline is realized, and the safety technical obstacle is solved.
2. The regenerator has the function of back burning, is provided with a gas igniter and a pipeline, can burn the bottom layer of the heat storage layer by preferentially contacting with ceramics, solves the problem of blockage of the heat storage ceramic body due to lampblack and fibers, and improves the heat recovery efficiency.
3. The heat recovery control system is arranged, so that the heat recovery amount can be accurately adjusted according to production requirements; compared with the existing heat setting machine combination technology mainly based on static electricity, the heat storage incineration method greatly improves the pollutant treatment efficiency.
4. Aiming at the characteristic of heat energy demand in heat setting production, the high temperature of heat setting waste gas and the heat value contained in pollutants are fully utilized, the problem that energy consumption is needed to cool the flue gas in the prior art is overcome, the inverse compensation and production of output heat are realized, and the energy consumption and the operation cost are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a dyeing and finishing heat-setting waste gas preheating type heat storage and incineration waste heat recovery integrated device according to an embodiment;
in the figure:
1-filter 2-preheating pipeline 3-induced draft fan
4-heat accumulating incinerator 5-exhaust pipeline 6-first heat exhausting pipeline
7-second heat extraction pipeline 8-first heat exchange fan 9-heat exchanger
10-a second heat exchange fan 11-a preheated air pipeline.
Detailed Description
The invention will be further elucidated with reference to the drawings and to specific embodiments. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, the dyeing and finishing heat-setting waste gas preheating type heat storage and incineration waste heat recovery integrated device of the embodiment comprises a filter 1, a preheating pipeline 2, an induced draft fan 3, a heat storage and incineration furnace 4 and an exhaust pipeline 5 which are sequentially connected. The incineration chamber of the heat storage incinerator 4 is connected with a second heat extraction pipeline 7, and the other end of the second heat extraction pipeline 7 is sequentially connected with a heat exchanger 9, a second heat exchange fan 10 and an exhaust pipeline 5.
The heat exchanger 9 is internally provided with a preheated air pipeline 11 externally connected with clean air, and the other end of the preheated air pipeline 11 is connected with an oven of the dyeing and finishing heat setting machine. Heat exchange between the hot gas in the second heat rejecting duct 7 and the clean air in the preheated air duct 11 takes place in the heat exchanger 9. The outer walls of the second heat extraction pipeline 7 and the preheated air pipeline 11 which are exposed to the environment are provided with heat insulation layers so as to avoid heat dissipation. The heat exchanger 9 may be a plate heat exchanger, a heat pipe heat exchanger, a fin tube heat exchanger or a shell and tube heat exchanger.
The preheating pipeline 2 is of a double-layer sleeve type structure, wherein the inner layer is an exhaust pipeline, and the outer layer is a first heat extraction pipeline 6; the flow direction of the exhaust gas in the exhaust gas duct is opposite to the flow direction of the hot gas in the first heat extraction duct 6, and the hot gas in the first heat extraction duct 6 reversely heats/insulates the exhaust gas in the exhaust gas duct. The outer wall of the first heat extraction duct 6 is provided with a heat insulating layer in order to better lock up the heat and to better transfer it to the inner exhaust duct. The hot end of the first heat extraction pipeline 6 is connected with an incineration chamber of the heat storage incinerator 4, and the cold end is connected with a first heat exchange fan 8.
The filter 1 can filter out impurities such as fluff and fibers in the exhaust gas. One end of the filter 1 is connected with an exhaust gas outlet of the dyeing and finishing heat setting machine, and the other end of the filter is connected with a cold end of the exhaust gas pipeline. And the hot end of the waste gas pipeline is connected with an induced draft fan 3.
The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device further comprises a preheating control system and a heat recovery control system. The preheating control system is used for temperature monitoring, data feedback and gas flow control of the waste gas pipeline and the first heat extraction pipeline 6 and the first heat exchange fan 8, so that the preheating operation is more accurate and flexible. The heat recovery control system is used for temperature monitoring, data feedback and gas flow control of the second heat exchange fan 10 of the preheated air pipeline 11, so that the heat recovery is more accurate and flexible for the dyeing and finishing heat setting machine.
The thermal storage incinerator 4 may be a three-chamber thermal storage incinerator or more thermal storage incinerators or a rotary thermal storage incinerator.
The heat accumulating incinerator 4 has a heat accumulating chamber back burning function, is provided with a gas igniter and a pipeline, can burn the air inlet at the bottom layer of the heat accumulating layer and is preferentially contacted with ceramic, and the problem that the heat accumulating ceramic body is blocked by oil smoke and fibers is solved. The temperature of the back firing is preferably 453-523K.
The dyeing and finishing heat setting waste gas preheating type heat accumulation and incineration waste heat recovery integrated device of this embodiment, during operation, heat setting machine waste gas is concentrated through the pipeline after, through filter 1, reentrant preheating pipeline 2, receive first heat extraction pipeline 6 heating or heat preservation in the waste gas pipeline, after pressurizing through draught fan 3, get into heat accumulation and burn burning furnace 4 and burn the processing, the partial purge gas after burning is discharged through exhaust pipeline 5, the partial purge gas after burning is drawn forth from heat accumulation burning furnace 4 burning room, the first heat extraction pipeline 6 that the general lets in preheating pipeline 2 preheats waste gas, and discharge to the aide under the effect of first heat exchange fan 8, the other general hot end that gets into heat exchanger 9 through second heat extraction pipeline 7, after carrying out heat transfer with clean air in heat exchanger 9, the purge gas of cooling is discharged through exhaust pipeline 5 through second heat exchange fan 10 traction, clean air gets into from the cold junction of heat exchanger 9, after passing through heat transfer in heat exchanger 9, through preheating air pipeline 11 disperse access heat setting machine oven.
The incineration temperature in the incineration chamber of the heat storage incinerator 4 may be 993 to 1373K and the exhaust gas residence time may be 0.6 to 1.5s.
The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device of the embodiment aims at the characteristic of heat energy demand in heat setting production, prevents waste gas oil smoke from condensing on a pipeline through a preheating technology to improve safety, utilizes high temperature of heat setting waste gas and heat value contained in pollutants, adopts a heat storage incineration method, realizes waste heat recovery and utilization while efficiently treating waste gas, realizes pollution reduction and carbon reduction coordination, and can be widely applied to waste gas engineering treatment of dyeing and finishing heat setting machines.
Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the foregoing description of the invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (10)
1. The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device is characterized by comprising a preheating pipeline (2), an induced draft fan (3), a heat storage and incineration furnace (4) and an exhaust pipeline (5) which are connected in sequence;
the preheating pipeline (2) is of a double-layer sleeve type structure, wherein the inner layer is an exhaust pipeline, and the outer layer is a first heat extraction pipeline (6); the flow direction of the exhaust gas in the exhaust gas pipeline is opposite to the flow direction of the hot gas in the first heat exhaust pipeline (6), and the hot gas in the first heat exhaust pipeline (6) reversely heats/insulates the exhaust gas in the exhaust gas pipeline; the cold end of the waste gas pipeline is connected with a waste gas outlet of the dyeing and finishing heat setting machine, and the hot end of the waste gas pipeline is connected with an induced draft fan (3); the hot end of the first heat extraction pipeline (6) is connected with an incineration chamber of the heat storage incinerator (4), and the cold end is connected with a first heat exchange fan (8).
2. The integrated device for preheating type heat accumulation and incineration waste heat recovery of dyeing and finishing heat setting waste gas according to claim 1, wherein a filter (1) is arranged between the cold end of the waste gas pipeline and the waste gas outlet of the dyeing and finishing heat setting machine.
3. Dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device according to claim 1, characterized in that the outer wall of the first heat extraction pipeline (6) is provided with an insulation layer.
4. The integrated device for preheating type heat storage and incineration waste heat recovery of dyeing and finishing heat setting waste gas according to claim 1, further comprising a preheating control system for temperature monitoring, data feedback and gas flow control of the waste gas pipeline and the first heat extraction pipeline (6) and the first heat exchange fan (8).
5. The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device according to claim 1, wherein the heat storage and incineration furnace (4) is a three-chamber heat storage and incineration furnace or a rotary heat storage and incineration furnace;
the heat accumulating incinerator (4) has a heat accumulating chamber back burning function, is provided with a gas igniter and a pipeline, and can burn the air inlet at the bottom layer of the heat accumulating layer by preferentially contacting with ceramics.
6. The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device according to claim 1, wherein an incineration chamber of the heat storage and incineration furnace (4) is connected with a second heat extraction pipeline (7), and the other end of the second heat extraction pipeline (7) is sequentially connected with a heat exchanger (9), a second heat exchange fan (10) and an exhaust pipeline (5);
a preheated air pipeline (11) externally connected with clean air is arranged in the heat exchanger (9), and the other end of the preheated air pipeline (11) is connected with an oven of the dyeing and finishing heat setting machine;
heat exchange between the hot gas in the second heat extraction pipeline (7) and the clean air in the preheated air pipeline (11) is carried out in the heat exchanger (9);
and the outer walls of the second heat extraction pipeline (7) and the preheated air pipeline (11) which are exposed in the environment are provided with heat insulation layers.
7. The integrated device for preheating type heat storage and incineration waste heat recovery of dyeing and finishing heat setting waste gas according to claim 6, further comprising a heat recovery control system for temperature monitoring, data feedback and gas flow control of the preheating air pipeline (11) and the second heat exchange fan (10).
8. The dyeing and finishing heat setting waste gas preheating type heat storage and incineration waste heat recovery integrated device according to claim 6, wherein the heat exchanger (9) is a plate heat exchanger, a heat pipe heat exchanger, a fin pipe heat exchanger or a shell and tube heat exchanger.
9. A dyeing and finishing heat-setting waste gas preheating type heat storage incineration waste heat recovery integrated treatment method, which is characterized in that the dyeing and finishing heat-setting waste gas preheating type heat storage incineration waste heat recovery integrated device is adopted;
the dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated treatment method comprises the following steps:
waste gas from a dyeing and finishing heat setting machine passes through the waste gas pipeline under the action of an induced draft fan (3), is heated/preserved and then enters a heat storage incinerator (4), the purified gas after incineration treatment is partially directly discharged to an exhaust pipeline (5), and part of the purified gas is reversely heated/preserved through a first heat removal pipeline (6) under the action of a first heat exchange fan (8) to form waste gas in the waste gas pipeline.
10. The dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated treatment method according to claim 9, wherein the incineration temperature in the incineration chamber of the heat storage incinerator (4) is 993-1373K, and the waste gas residence time is 0.6-1.5s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310236292.8A CN116481035A (en) | 2023-03-06 | 2023-03-06 | Dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated device and treatment method |
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| CN202310236292.8A CN116481035A (en) | 2023-03-06 | 2023-03-06 | Dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated device and treatment method |
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| CN202310236292.8A Pending CN116481035A (en) | 2023-03-06 | 2023-03-06 | Dyeing and finishing heat setting waste gas preheating type heat storage incineration waste heat recovery integrated device and treatment method |
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| Country | Link |
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| CN (1) | CN116481035A (en) |
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- 2023-03-06 CN CN202310236292.8A patent/CN116481035A/en active Pending
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