CN204404158U - A kind of sludge drying tail gas afterheat retracting device - Google Patents
A kind of sludge drying tail gas afterheat retracting device Download PDFInfo
- Publication number
- CN204404158U CN204404158U CN201520009931.8U CN201520009931U CN204404158U CN 204404158 U CN204404158 U CN 204404158U CN 201520009931 U CN201520009931 U CN 201520009931U CN 204404158 U CN204404158 U CN 204404158U
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- heat exchange
- exchange unit
- housing
- diversion box
- tail gas
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Abstract
The utility model provides a kind of sludge drying tail gas afterheat retracting device, comprise housing, first heat exchange unit, first diversion box, second heat exchange unit, pipe is swept in second diversion box and spray, it is provided with the first heat exchange unit and the first diversion box on the top of housing, the upper position that pipe is placed in the first heat exchange unit is swept in spray with nozzle, the access door of band glass vision panel mouth is provided with at the middle part of housing, the second heat exchange unit and the second diversion box is provided with in the bottom of housing, import and the outlet of hot waste gas is respectively equipped with at the top of housing and bottom, heat exchange unit in heat exchanger is carbon steel H-shaped extended surface tube structure.The utility model solves the cleaning difficult problem of the energy waste that low temperature exhaust heat that existing equipment is difficult to effectively reclaim formed, serious thermal pollution and existing equipment, and energy conservation and consumption reduction effects is remarkable.
Description
Technical field
The utility model relate to a kind of energy-saving environmental protection device, particularly sludge drying etc. large containing large, the water capacity of Dust Capacity, be with corrosive exhaust waste heat recovery device, belong to environmental protection and energy saving technical field.
Background technology
China is that world's natural resources wastes one of the most serious country, accepts rank the 56th in the country of investigation at 59.According to another statistics, the energy use efficiency of China is only 26.9% of the U.S., 11.5% of Japan.Therefore, propulsion energy-saving reduces discharging, and is extremely urgent.After energy-saving and emission-reduction policy is carried out by country in 2011, all trades and professions all strengthens the consciousness of environmental protection and energy saving, and some technique has also made many energy-conservation projects, but the somewhat higher exhaust gas heat of some conditions reclaims, still certain recovery technology is lacked, as sludge drying tail gas.The main feature of sludge drying tail gas is exactly, large containing Dust Capacity, water capacity large, band corrosivity.General sludge drying rotary kiln tail gas out, all wants about 180 DEG C, tail gas about amount 50000m3/h, and callable heat is very large.But current to do this kind of recuperation of heat few, and mainly energy-saving appliance easily blocks and corrodes.If Dust Capacity is large, water capacity large, be with corrosive exhaust waste heat recovery device to adopt sludge drying etc. to contain, the soft water system of supplement boiler is used for the waste-heat hot water reclaimed, a large amount of resources and energy expenditure can be saved, have very large meaning for energy-saving and cost-reducing.
Summary of the invention
The purpose of this utility model is that overcoming existing equipment easily blocks, holds corrosion-prone shortcoming, a kind of sludge drying tail gas afterheat retracting device is provided, solves the energy waste of low temperature exhaust heat formation and the cleaning difficult problem of serious thermal pollution and existing equipment that existing equipment is difficult to effectively recovery.
The technical scheme that the invention for solving the technical problem adopts: the utility model comprises housing, the first heat exchange unit, the first diversion box, access door, the second heat exchange unit, the second diversion box and spray and sweeps pipe, it is characterized in that being respectively equipped with the first heat exchange unit and the first diversion box at housing upper, the top that pipe is located at housing is swept in the spray with nozzle; Be provided with the access door of band viewing window at the middle part of housing, be provided with the second heat exchange unit and the second diversion box in the bottom of housing; Hot waste gas import and hot waste gas outlet is respectively equipped with at the top of housing and bottom.
Described first diversion box is connected to the first hot water adapter, and the first hot water adapter is connected with boiler hot water pipe.
Described second diversion box is connected to the second hot water adapter, and the second hot water adapter is connected with cooling tower water pipe.
The first described heat exchange unit and the second hot heat exchange unit are the heat exchange unit of carbon steel H-shaped extended surface tube structure.
The pipe in-line arrangement of described extended surface tube is arranged in parallel, parallel to each other and independent to place between fin.
H-shaped fin structure main advantage is that the gap in the middle of fin is comparatively large, and be conducive to the flowing of flue gas and washing away dust stratification, pipe in-line arrangement arranges, and resistance is little, weares and teares little; H-shaped fin effectively can utilize the flowing space, keeps larger fin area and wing ratio; Fin is parallel to each other and independent, does not have the impact of helical angle, is therefore convenient to ash disposal.
The beneficial effects of the utility model:
(1) reclaimed the using waste heat from tail gas of sludge drying rotary kiln, utilize this waste heat can heat hot water for the soft water system of supplement boiler, save fuel cost, reduce the operating cost of factory.
(2) heat exchange unit adopts H-shaped extended surface tube, avoids dust serious conditions, designs high temperature low-temperature zone simultaneously and reclaims sensible heat and condensation heat respectively, adopt different materials, while reducing costs, extend the service life of heat exchanger.
(3) be designed with compressed air spray at retracting device inducer and sweep pipe, pipe is provided with nozzle, and the compressed air of nozzle every 6 hours logical 3bar carries out purging ash disposal, ensure that the clean of heat exchanger, improves the heat exchange efficiency of heat exchanger.
(4) be designed with access door at interlude, and mouth inspected by glass, convenient operation personnel observe the dust situation of device interior at any time, carry out periodic inspection.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is H-shaped extended surface tube structural diagrams.
In figure, 1, housing 2, spray sweep pipe 3, first diversion box 4, first hot water adapter 5, first heat exchange unit 6, access door 7, viewing window 8, second hot water adapter 9, second diversion box 10, second heat exchange unit 11, H-shaped fin 12, nozzle 13, exhaust gas inlet 14, waste gas outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described, but the claimed scope of the utility model is not limited to the scope of detailed description of the invention statement.
In Fig. 1 ~ 2, sludge drying rotary kiln out large containing large, the water capacity of Dust Capacity, down blow into waste-heat recovery device with the hot waste gas import 13 of corrosive tail gas from housing 1 top, successively through the compressed air spray section of sweeping, high temperature Exposure degree section, middle maintenance section, cryogenic condensation heat-recovery section, then discharges through waste gas outlet 14.The first heat exchange unit 5 is washed away in high temperature Exposure degree section, tail gas is delivered to heat the circulating hot water of tube interior by H-shaped fin 11, hot water enters the first diversion box 3 shunting from the first hot water adapter 4 and enters heat absorption intensification in pipe, water temperature will be raised to 90 degree from 70 degree, then boiler water tank is transported to, do the moisturizing of boiler, thus reduce the consumption of boiler oil.Owing to have employed H-shaped fin 11 structure, the dust in tail gas not easily hangs on the first heat exchange unit 5, thus improves heat transfer efficiency.Simultaneously interlude has glass vision panel mouth 7, and operating personnel can facilities for observation service condition at any time.If it is more to observe dust in H-shaped fin 11, available compression air sweeps pipe 2 through spray, is used in nozzle 12 spray and sweeps the first heat exchange unit 5, keep the clean degree of the first heat exchange unit 5.Or open access door 6, rinse well from access door with hydraulic giant.High-temperature tail gas is after high-temperature heat transfer section, temperature drops to about 100 degree, continue through low temperature Exposure degree section, the water at low temperature of cooling tower is walked in low-temperature heat exchange section pipe, enter the second diversion box 9 shunting from the second hot water adapter 8 and enter cooling in pipe, tail gas discharges in air after low-temperature heat exchange section condenses to about 50 degree, thus reduces thermal pollution.
Claims (5)
1. a sludge drying tail gas afterheat retracting device, comprise housing, the first heat exchange unit, the first diversion box, access door, the second heat exchange unit, the second diversion box and spray and sweep pipe, it is characterized in that being respectively equipped with the first heat exchange unit (5) and the first diversion box (3) at housing upper, the top that pipe (2) is located at housing is swept in the spray with nozzle; Be provided with the access door (6) of band viewing window at the middle part of housing, be provided with the second heat exchange unit (10) and the second diversion box (9) in the bottom of housing; Hot waste gas import and hot waste gas outlet is respectively equipped with at the top of housing and bottom.
2. a kind of exhaust waste heat recovery device according to claim 1, is characterized in that described first diversion box is connected to the first hot water adapter (4), and the first hot water adapter is connected with boiler hot water pipe.
3. a kind of sludge drying tail gas afterheat retracting device according to claim 1, is characterized in that described second diversion box is connected to the second hot water adapter (8), and the second hot water adapter is connected with cooling tower water pipe.
4. a kind of sludge drying tail gas afterheat retracting device according to claim 1, is characterized in that the first heat exchange unit (5) and the second hot heat exchange unit (10) are the heat exchange unit of carbon steel H-shaped extended surface tube structure.
5. a kind of sludge drying tail gas afterheat retracting device according to claim 4, is characterized in that the arrangement of the pipe of described extended surface tube equal in-line arrangement, parallel to each other and independently to place between fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009931.8U CN204404158U (en) | 2015-01-05 | 2015-01-05 | A kind of sludge drying tail gas afterheat retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009931.8U CN204404158U (en) | 2015-01-05 | 2015-01-05 | A kind of sludge drying tail gas afterheat retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404158U true CN204404158U (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520009931.8U Expired - Fee Related CN204404158U (en) | 2015-01-05 | 2015-01-05 | A kind of sludge drying tail gas afterheat retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204404158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916190A (en) * | 2017-12-08 | 2019-06-21 | 上海和惠生态环境科技有限公司 | A kind of novel sewage sludge drying tail gas heat quantity recycling and reusing device |
| CN115432903A (en) * | 2022-07-29 | 2022-12-06 | 广州赛唯热工设备有限公司 | Low-temperature sludge drying thermodynamic system |
-
2015
- 2015-01-05 CN CN201520009931.8U patent/CN204404158U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916190A (en) * | 2017-12-08 | 2019-06-21 | 上海和惠生态环境科技有限公司 | A kind of novel sewage sludge drying tail gas heat quantity recycling and reusing device |
| CN115432903A (en) * | 2022-07-29 | 2022-12-06 | 广州赛唯热工设备有限公司 | Low-temperature sludge drying thermodynamic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |