CN220541119U - Top burning type waste heat recovery integrated film wall device - Google Patents
Top burning type waste heat recovery integrated film wall device Download PDFInfo
- Publication number
- CN220541119U CN220541119U CN202320853806.XU CN202320853806U CN220541119U CN 220541119 U CN220541119 U CN 220541119U CN 202320853806 U CN202320853806 U CN 202320853806U CN 220541119 U CN220541119 U CN 220541119U
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- CN
- China
- Prior art keywords
- hearth
- waste heat
- heat boiler
- heat recovery
- wall device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002918 waste heat Substances 0.000 title claims abstract description 55
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 210000001503 joint Anatomy 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004071 soot Substances 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 abstract description 5
- 230000000996 additive effect Effects 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- -1 sulfate compound Chemical class 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model provides a top-fired waste heat recovery integrated membrane wall device, which comprises: the waste heat boiler comprises a waste heat boiler body, wherein a three-return hearth is formed in the waste heat boiler body through a baffling structure, an air inlet is formed in the top of the first hearth, high-temperature flue gas generated by the incinerator is directly discharged into the first hearth, and an internal pouring layer is arranged in the first hearth. The utility model is characterized in that the waste heat boiler is arranged under the polymer additive incinerator in a butt joint way, and is integrally arranged, the burner is arranged at the top of the first hearth of the waste heat boiler, high-temperature flue gas generated by burning the incinerator burner is directly connected into the first hearth of the waste heat boiler, the requirement of the specification is met by controlling the heat load intensity of the first hearth, and under the condition of meeting the specification requirement of '1100 ℃ and more than 2S', not only can an originally designed heat-insulating hearth be saved, equipment for cooling to 1100 ℃ by air distribution can be realized, but also the film wall of the first hearth of the waste heat boiler can absorb the high-temperature waste heat of 1860 ℃ to 1100 ℃.
Description
Technical Field
The utility model relates to the field of boiler equipment, in particular to a top-fired waste heat recovery integrated membrane wall device.
Background
The waste in the product manufacturing process in the field of polymer additive manufacturing mainly comprises various sulfate compound dust, organic solvent waste gas, part of waste liquid and other complex waste.
The hazardous waste incineration is generally carried out by adopting an incineration method, the special treatment before the incineration meets the requirement of feeding the furnace, and the hazardous waste is uniformly and completely combusted in the furnace; the temperature of the incinerator should reach over 1100 ℃, the residence time of the flue gas should be over 2.0 seconds, the burning efficiency is over 99.9 percent, the burning removal rate is over 99.99 percent, and the burning rate of the burning residues is less than 5 percent (except for clinical wastes of hospitals and polychlorinated biphenyl-containing wastes).
The waste generated in the process of manufacturing the polymer additive mainly comprises various sulfate compound dust and a small amount of waste liquid of an organic solvent, so that the heat value of the waste is extremely high, and the auxiliary fuel is mainly natural gas with higher heat value, so that the temperature of the flue gas at the outlet of the device is higher: about 1100-1150 deg.c, and belongs to the field of waste heat source with very high taste. Direct discharge affects the atmosphere and causes waste of energy.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model provides a top-fired waste heat recovery integrated film wall device, which comprises: the waste heat boiler comprises a waste heat boiler body, wherein a three-return hearth is formed in the waste heat boiler body through a baffling structure, a first hearth, a second hearth and a third hearth are sequentially vertically and tightly arranged and are connected end to end, an air inlet is formed in the top of the first hearth, an incinerator is mounted at the top of the air inlet, high-temperature flue gas generated by the incinerator is directly discharged into the first hearth, and an internal pouring layer is arranged in the first hearth.
As a preferred embodiment of the present utility model, the inner casting layer is made of refractory casting material.
As a preferable scheme of the utility model, the heat exchange tube is arranged in the second hearth, and the heat exchange tube is arranged on the second hearth by adopting a convection heating surface arrangement structure.
As a preferable mode of the utility model, a plurality of evaporators are arranged in the third hearth.
As a preferable scheme of the utility model, a smoke outlet is arranged at the bottom of the side wall of the third hearth, an economizer is arranged at the smoke outlet in a butt joint mode, and an exhaust port of the economizer is connected to the bag-type dust collector in a butt joint mode.
As a preferable scheme of the utility model, the waste heat boiler main body is composed of a membrane water-cooled wall, and the economizer, the membrane water-cooled wall, the heat exchange tube, the evaporator and the steam drum form a heat exchange evaporation mechanism and output steam outwards through the steam drum. The externally connected water supplementing is treated by the deaerator, enters the economizer, is heated in the flue, so that water is evaporated into steam, the steam is gathered in the drum steam drum, and saturated steam is obtained by the steam-water separation device.
As a preferable scheme of the utility model, a plurality of groups of soot blowing openings are formed in the front side and the rear side of the third hearth, a group of air injection soot blowing devices are arranged at each soot blowing opening, a first ash bucket is arranged at the bottoms of the first hearth and the second hearth, and a second ash bucket is arranged at the bottom of the third hearth.
As a preferable scheme of the utility model, the first hearth is internally provided with SNCR denitration equipment and SCR denitration equipment.
Compared with the prior art, the utility model is characterized in that the waste heat boiler is arranged below the polymer additive incinerator in a butt joint way and is integrally arranged, the burner is arranged at the top of the first hearth of the waste heat boiler, the high-temperature flue gas generated by burning the burner of the incinerator is directly connected into the first hearth of the waste heat boiler, the requirement of the specification is met by controlling the heat load intensity of the first hearth, and under the condition of meeting the requirement of the specification of '1100 ℃ and more than 2S', not only can an originally designed heat-insulating hearth be saved, equipment (commonly called a 'secondary combustion chamber') with air cooling to 1100 ℃ be arranged, but also the high-temperature waste heat of 1860 ℃ to 1100 ℃ can be absorbed through the film wall of the first hearth of the waste heat boiler.
The first hearth controls the high-temperature waste flue gas generated by the burner by pouring the refractory material, and the passing time of the high-temperature waste flue gas from 1860 ℃ to 1100 ℃ meets the specification requirement of more than 2 s.
The utility model is matched with an incineration device, and integrates SNCR denitration, SCR denitration and other equipment with the waste heat boiler, so that the whole waste incineration and waste heat boiler system structure is more compact and reasonable.
The waste heat boiler adopts a three-return design, the bottoms of the first hearth and the second hearth are provided with the first ash bucket, and the bottom of the third hearth is provided with the second ash bucket, so that dust, salt dust and the like generated by the incineration device when incinerating wastes can be settled in the first ash bucket and the second ash bucket.
Drawings
Fig. 1 is a front view of a top firing type waste heat recovery integrated membrane wall device.
Fig. 2 is a side view of a top firing type waste heat recovery integrated membrane wall device.
Fig. 3 is a front view of the waste heat boiler.
Fig. 4 is a side view of the waste heat boiler.
Fig. 5 is a plan view of the waste heat boiler.
Wherein: 1-an incinerator; 2-a first furnace; 201-internal casting layer; 3-a second hearth; 4-a third hearth; 5-a heat exchange tube; 6-an evaporator; 7-a steam drum; 8-membrane water wall; 9-an economizer; 10-a bag-type dust remover; 11-jet soot blower.
Description of the embodiments
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
As shown in fig. 1-5, the present utility model provides a top firing type waste heat recovery integrated membrane wall device, comprising: the waste heat boiler comprises a waste heat boiler main body, wherein a three-return-stroke hearth is formed in the waste heat boiler main body through a baffling structure, a first hearth 2, a second hearth 3 and a third hearth 4 are sequentially vertically and tightly arranged and are connected end to end, an air inlet is formed in the top of the first hearth 2, an incinerator 1 is mounted at the top of the air inlet, high-temperature flue gas generated by the incinerator 1 is directly discharged into the first hearth 2, an internal pouring layer 201 is arranged in the first hearth 2, and the internal pouring layer 201 is made of refractory castable. The utility model is characterized in that the waste heat boiler is arranged under the polymer additive incinerator in a butt joint way and is integrally arranged, the burner is arranged at the top of the first hearth of the waste heat boiler, the high-temperature flue gas generated by burning the burner of the incinerator is directly connected into the first hearth of the waste heat boiler, the standard requirement is met by controlling the heat load intensity of the first hearth, under the standard requirement of '1100 ℃ and more than 2S', not only can an originally designed heat-insulating hearth be saved, equipment (commonly called a 'secondary combustion chamber') which is cooled to 1100 ℃ by air distribution be cooled, but also the film wall of the first hearth of the waste heat boiler can absorb the high-temperature waste heat of 1860 ℃ to 1100 ℃, and the passing time of the high-temperature waste flue gas generated by the burner from 1860 ℃ to 1100 ℃ can be controlled by pouring refractory materials to meet the standard requirement of more than 2S.
The components and side wall structures in each hearth of the waste heat boiler are specifically described below, the heat exchange tube 5 is installed in the second hearth 3 by adopting a convection heating surface arrangement structure, the plurality of evaporators 6 are installed in the third hearth 4, and the waste heat boiler main body is composed of membrane water walls 8. Considering that the dust in the second hearth 3 is less after the dust is settled in the first hearth 2, the convection heating surface is arranged, and the waste heat utilization efficiency is improved to the greatest extent.
In order to realize further harmless treatment of the tail gas, a smoke outlet is arranged at the bottom of the side wall of the third hearth 4, an economizer 9 is arranged at the smoke outlet in a butt joint mode, and an exhaust outlet of the economizer 9 is connected to a bag-type dust collector 10 in a butt joint mode.
The temperature of the flue gas generated by the incinerator 1 is above 1800 ℃, the flue gas enters a film type wall hearth from the top of the first hearth 2, and the flue gas temperature is reduced to about 1100 ℃ after the first hearth 2 which is fully covered with refractory castable is cooled; then enters a second hearth 3 to be cooled to about 700 ℃; continuing to the third furnace 4 where three evaporators are arranged, cooling continues to around 300 ℃. At the moment, the flue gas is discharged from the bottom of the third hearth, the flue gas temperature is reduced to 230 ℃ after entering the superheater tube economizer 9, and finally the flue gas enters the bag-type dust collector 10.
The liquid path of the utility model is specifically described below, and the economizer 9, the membrane water wall 8, the heat exchange tube 5, the evaporator 6 and the steam drum 7 form a heat exchange evaporation mechanism and output steam outwards through the steam drum. The externally connected water supplementing is treated by the deaerator, enters the economizer 9, is heated in a flue, evaporates water into steam, gathers the steam into the drum steam drum 7, and obtains saturated steam by the steam-water separation device.
In order to avoid dust accumulation, a plurality of groups of soot blowing openings are formed in the front side and the rear side of the third hearth 4, a group of air injection soot blowing devices 11 are arranged at each soot blowing opening, a first ash bucket is arranged at the bottoms of the first hearth 2 and the second hearth 3, and a second ash bucket is arranged at the bottom of the third hearth 4, so that falling dust can be conveniently collected.
In order to further improve environmental protection benefits, SNCR denitration equipment and SCR denitration equipment are arranged in the first furnace chamber 2. Besides converting the heat energy in the waste gas into steam or electric power, the method can also meet the requirements of environmental protection treatment of the flue gas, effectively inhibit the generation of dioxin, increase the economic benefit of enterprises, reduce the emission of atmospheric pollutants and realize the situation that the economic benefit, the environmental protection benefit and the social benefit win more.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (8)
1. Top burning type waste heat recovery integrated film wall device includes: the waste heat boiler comprises a waste heat boiler main body and is characterized in that a three-return hearth is formed in the waste heat boiler main body through a baffling structure, a first hearth (2), a second hearth (3) and a third hearth (4) are sequentially vertically and tightly arranged and connected end to end, an air inlet is formed in the top of the first hearth (2), an incinerator (1) is mounted at the top of the air inlet, high-temperature flue gas generated by the incinerator (1) is directly discharged into the first hearth (2), and an internal pouring layer (201) is arranged in the first hearth (2).
2. The top-firing waste heat recovery integrated membrane wall device of claim 1, wherein the inner casting layer (201) is made of refractory casting material.
3. The top-fired waste heat recovery integrated film wall device according to claim 2, wherein a heat exchange tube (5) is installed in the second furnace (3), and the heat exchange tube (5) is installed to the second furnace (3) by adopting a convection heating surface arrangement structure.
4. A top firing type waste heat recovery integrated membrane wall device according to claim 3, characterized in that a plurality of evaporators (6) are installed in the third furnace (4).
5. The top-fired waste heat recovery integrated film wall device according to claim 4, wherein a smoke outlet is formed in the bottom of the side wall of the third hearth (4), an economizer (9) is installed at the smoke outlet in a butt joint mode, and an exhaust port of the economizer (9) is connected to the bag-type dust collector (10) in a butt joint mode.
6. The top-fired waste heat recovery integrated membrane wall device according to claim 5, wherein the waste heat boiler body is composed of a membrane water wall (8), and the economizer (9), the membrane water wall (8), the heat exchange tube (5), the evaporator (6) and the steam drum (7) form a heat exchange evaporation mechanism and output steam outwards through the steam drum.
7. The top-fired waste heat recovery integrated film wall device according to claim 6, wherein a plurality of groups of soot blowing openings are formed in the front side and the rear side of the third hearth (4), a group of jet soot blowing devices (11) are arranged at each soot blowing opening, a first ash bucket is arranged at the bottoms of the first hearth (2) and the second hearth (3), and a second ash bucket is arranged at the bottom of the third hearth (4).
8. The top-fired waste heat recovery integrated membrane wall device according to claim 7, wherein the first furnace (2) is internally provided with SNCR denitration equipment and SCR denitration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853806.XU CN220541119U (en) | 2023-04-17 | 2023-04-17 | Top burning type waste heat recovery integrated film wall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853806.XU CN220541119U (en) | 2023-04-17 | 2023-04-17 | Top burning type waste heat recovery integrated film wall device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220541119U true CN220541119U (en) | 2024-02-27 |
Family
ID=89969099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320853806.XU Active CN220541119U (en) | 2023-04-17 | 2023-04-17 | Top burning type waste heat recovery integrated film wall device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220541119U (en) |
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2023
- 2023-04-17 CN CN202320853806.XU patent/CN220541119U/en active Active
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