CN208406122U - A kind of spray drying tower exhaust gas circulating device - Google Patents
A kind of spray drying tower exhaust gas circulating device Download PDFInfo
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- CN208406122U CN208406122U CN201820385570.0U CN201820385570U CN208406122U CN 208406122 U CN208406122 U CN 208406122U CN 201820385570 U CN201820385570 U CN 201820385570U CN 208406122 U CN208406122 U CN 208406122U
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Abstract
一种喷雾干燥塔废气循环装置，包括喷雾干燥塔，所述喷雾干燥塔的顶部设有进料口和热废气进口，喷雾干燥塔的底部设有湿废气排出口以及粉料排出口，喷雾干燥塔的内腔顶部配装至少一个喷雾器，还包括塔外废气循环管路系统，塔外废气循环管路系统包括引风机、预冷器、换热器和加热设备，喷雾干燥塔的湿废气排出口与通过管路引至引风机进口；引风机的出气口与预冷器的第一进气口管路连通；换热器为风冷、水冷两用换热器；加热设备的进口与预冷器的干废气出口管路连通，加热设备的出口与喷雾干燥塔的热废气进口管路连通。本实用新型的有益效果是：实现废气的循环套用和能量的再利用，保证无废气、废水排放，具有显著的经济效益和社会效益。
A spray drying tower waste gas circulation device, including a spray drying tower, the top of the spray drying tower is provided with a feed inlet and a hot waste gas inlet, and the bottom of the spray drying tower is provided with a wet waste gas outlet and a powder outlet. The top of the inner cavity of the tower is equipped with at least one sprayer, and also includes the exhaust gas circulation pipeline system outside the tower. The exhaust gas circulation pipeline system outside the tower includes induced draft fan, precooler, heat exchanger and heating equipment. The outlet is led to the inlet of the induced draft fan through the pipeline; the air outlet of the induced draft fan is connected with the first air inlet of the precooler; the heat exchanger is an air-cooled and water-cooled dual-purpose heat exchanger; The dry exhaust gas outlet pipeline of the cooler is connected, and the outlet of the heating device is connected with the hot exhaust gas inlet pipeline of the spray drying tower. The beneficial effect of the utility model is that the recycling of waste gas and the reuse of energy are realized, no waste gas and waste water are discharged, and the utility model has significant economic and social benefits.
Description
Technical field
The utility model relates to a kind of spray drying tower exhaust gas circulating device, especially a kind of dyestuff spray drying tower exhaust gas
Circulator.
Background technique
During DYE PRODUCTION, generally dyestuff dry product will be made by spray drying, and the exhaust gas of spray dryer is straight
Run in into atmosphere, cause substance, energy dissipation, and also contain dyestuff dust and peculiar smell in exhaust gas, causes environmental pollution.
Summary of the invention
To solve the above problems, the utility model, which provides one kind, can recycle the exhaust gas that spray drying tower is discharged
The spray drying tower exhaust gas circulating device handle, is environmentally friendly, economizing on resources.
A kind of spray drying tower exhaust gas circulating device described in the utility model, including spray drying tower, it is described spraying dry
The top of dry tower is equipped with the feed inlet for introducing dyestuff slurry to its inner cavity and the hot waste gas import for introducing hot waste gas, institute
The bottom of spray drying tower is stated equipped with the powder for the wet outlet port of wet exhaust gas to be discharged and for dyestuff powder to be discharged
Outlet, the inner cavity top of the spray drying tower is equipped at least one sprayer, and the feed inlet of sprayer is done with spraying
The feed inlet pipeline connection of dry tower, it is characterised in that: further include the outer waste gas circulation pipe-line system of tower, the outer waste gas circulation pipe of the tower
Road system includes air-introduced machine, forecooler, heat exchanger and heating equipment, and the wet outlet port of the spray drying tower passes through pipeline
Lead to air-introduced machine import；The gas outlet of air-introduced machine and the first air inlet pipeline connection of forecooler；
Heat exchanger is air-cooled, water cooling dual-purpose heat exchanger, and the first entrance end of the heat exchanger is divided into two-way in parallel,
Respectively configured with the control valve for controlling respective line opening and closing on two-way pipeline, wherein being all the way water cooling import, with refrigeration unit
Water outlet pipeline connection, for into dual-purpose heat exchanger introduce spring and summer autumn chilled water, another way be air-cooled import, with drum
The air outlet pipeline connection of blower, for introducing winter nature cold wind into dual-purpose heat exchanger；Second import of heat exchanger and pre-
The wet waste gas outlet pipeline of cooler is connected to；First gas outlet of heat exchanger and the second air inlet pipeline connection of forecooler, are used for
Dry exhaust gas in heat exchanger is introduced in forecooler；Second gas outlet of heat exchanger and ambient atmosphere or freezing water-recorvery apparatus
Connection, for discharging winter hot wind and the recycling of spring and summer autumn chilled water；The condensation-water drain of heat exchanger leads to dye by pipeline
At the circulation water inlet for expecting synthesis device；
The import of heating equipment is connected to the dry waste gas outlet pipeline of forecooler, and the outlet of heating equipment and spray drying
The hot waste gas inlet ductwork of tower is connected to.
Dust-extraction unit is added between the wet outlet port and air-introduced machine air inlet of the spray drying tower.
The dust-extraction unit is one or two of cyclone dust collectors, bag filter or electric precipitator or two or more
Tandem compound, wherein being located at import of the deduster import as entire cleaner of most upstream, with the spray drying tower
Wet outlet port pipeline connection；Outlet of the house outlet of most downstream as entire cleaner, with air-introduced machine import
Pipeline connection.
The heat exchanger is the plate heat exchanger air-cooled, water cooling is dual-purpose.
The heating equipment is heater or heat exchanger.
The heater is steam heater or air heater.
The heat exchanger is coal hot-air heat exchanger, gas hot-air heat exchanger or heat-condutive oil heat exchanger.
Exhaust gas circulating device described in the utility model, its advantages are embodied in: 1, spray drying tower comes out wet useless
After gas is dehumidified, heated, recycled in spray drying tower is returned, avoids exhaust gas discharge；2, forecooler not only can be to spray
The wet exhaust gas that mist drying tower comes out is pre-chilled, and the dry exhaust gas that can also be come out to dual-purpose heat exchanger preheats, and passes through pre-cooling
Device realizes the recycling to heat in wet exhaust gas, energy saving；3, using air-cooled, water cooling dual-purpose heat exchanger, use in winter is come from
The natural cold wind of air blower, no refrigeration power consumption are energy saving；Spring and summer autumn uses the chilled water from refrigeration unit；4, wet useless
Gas send Dyestuff synthesis workshop section to apply through the condensed condensed water of dual-purpose heat exchanger, non-wastewater discharge；5, the circulating sleeve of exhaust gas is realized
With the recycling with energy, guarantee that there is significant economic benefit and social benefit without exhaust gas, discharge of wastewater.
Detailed description of the invention
Fig. 1 is the structure chart (adding dust-extraction unit) of the utility model.
Fig. 2 is the structure chart (without dust-extraction unit) of the utility model.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawing.
Referring to attached drawing:
A kind of spray drying tower exhaust gas circulating device described in the utility model of embodiment 1, including spray drying tower 1, institute
The feed inlet 11 being equipped at the top of spray drying tower 1 for introducing dyestuff slurry to its inner cavity is stated, and the heat of introducing hot waste gas is given up
The bottom of gas import 12, the spray drying tower 1 is equipped with for the wet outlet port 13 of wet exhaust gas to be discharged and for being discharged
The powder outlet 14 of dyestuff powder, the inner cavity top of the spray drying tower 1 are equipped at least one sprayer 15, and spraying
The feed inlet of device 15 and 11 pipeline connection of feed inlet of spray drying tower 1 further include the outer waste gas circulation pipe-line system 2 of tower, described
The outer waste gas circulation pipe-line system 2 of tower includes air-introduced machine 21, forecooler 22, heat exchanger 23 and heating equipment 24, the spray drying
The wet outlet port 13 of tower 1 with 21 import of air-introduced machine led to by pipeline；The of the gas outlet of air-introduced machine 21 and forecooler 22
One air inlet pipeline connection；
Heat exchanger 23 is air-cooled, water cooling dual-purpose heat exchanger, and 231 arrival end of the first import of the heat exchanger 23 is divided into parallel connection
Two-way, one is respectively configured on two-way pipeline for controlling the control valve 234 of respective line opening and closing, wherein be all the way water cooling import,
It is connected to the water outlet pipeline of refrigeration unit 232, for introducing the chilled water in spring and summer autumn into dual-purpose heat exchanger, another way is
Air-cooled import, the air outlet pipeline connection with air blower 233, for introducing winter nature cold wind into dual-purpose heat exchanger；Heat exchange
Second import of device 23 is connected to the wet waste gas outlet pipeline of forecooler 22；First gas outlet of heat exchanger 23 and forecooler 22
Second air inlet pipeline connection, for introducing the dry exhaust gas in heat exchanger in forecooler；Second gas outlet of heat exchanger 23 with
Ambient atmosphere or freezing water-recorvery apparatus connection, for discharging winter hot wind and the recycling of spring and summer autumn chilled water；Heat exchanger
23 condensation-water drain is led to by pipeline at the circulation water inlet of Dyestuff synthesis equipment；
The import of heating equipment 24 is connected to the dry waste gas outlet pipeline of forecooler 22, and the outlet and spray of heating equipment 24
The hot waste gas inlet ductwork of mist drying tower 1 is connected to.
The heat exchanger is the plate heat exchanger air-cooled, water cooling is dual-purpose.
The heating equipment is heater or heat exchanger.
The heater is steam heater or air heater.
The heat exchanger is coal hot-air heat exchanger, gas hot-air heat exchanger or heat-condutive oil heat exchanger.
It is in place of 2 the present embodiment of embodiment and the difference of embodiment 1: the wet outlet port of the spray drying tower 1
Dust-extraction unit 3 is added between 13 and the air-introduced machine 21 of the outer waste gas circulation pipe-line system 2 of tower, the dust-extraction unit 3 is cyclone dust removal
One or two of device 31, bag filter 32 or electric precipitator or more than two tandem compounds, wherein being located at most upstream
Import of the deduster import as entire cleaner, the wet outlet port pipeline connection with the spray drying tower；Most
Outlet of the house outlet in downstream as entire cleaner, is connected to air-introduced machine inlet ductwork.
Embodiment 3 is as shown in Figure 1, the utility model provides a kind of spray drying tower exhaust gas circulating device, the device packet
It includes: spray drying tower 1 (tower top has sprayer 15), cyclone dust collectors 31, bag filter 32, air-introduced machine 21, forecooler 22, two
With plate heat exchanger 23,233 refrigeration unit 232 of air blower and steam heater 24.
Spray drying tower 1 is connect with cyclone dust collectors 31, and the outlet of cyclone dust collectors 31 is connect with bag filter 32, cloth bag
The outlet of deduster 32 is connect with forecooler 22, and there are two outlet, one outlets to connect with dual-purpose plate heat exchanger 23 for forecooler 22,
Another outlet is connect with steam heater 24, and steam heater outlet is connect with spray drying tower 1, dual-purpose plate heat exchanger 23
Inlet parallel connects air blower 233 and refrigeration unit 232, and air blower 233 and the outlet of refrigeration unit 232 respectively set a valve 234,
There are three outlet, one outlet is connect dual-purpose plate heat exchanger 23 with forecooler 22, and one outlet is chilled water or hot wind discharge
Mouthful, it is condensation-water drain there are one outlet.
Dyestuff slurry enters the spray drying of spray drying tower 1 in the utility model, the wet exhaust gas warp that spray drying tower 1 comes out
Forecooler 22 is entered by air-introduced machine 21 after cyclone dust collectors 31 and the filtering of bag filter 32, enters two-purpose plate after wet exhaust gas pre-cooling
23 dehumidification by condensation of formula heat exchanger, condensed water are sent to Dyestuff synthesis workshop section and are applied.The dry exhaust gas that dual-purpose plate heat exchanger 23 comes out is again
It is preheated into forecooler 22, the dry exhaust gas after preheating comes back in spray drying tower 1 after the heating of steam heater 24 and recycles
It applies.Dual-purpose plate heat exchanger 23 uses the natural cold wind from air blower 233, hot wind by 234 control switch of valve, winter
Direct emission；Spring and summer autumn uses the chilled water from refrigeration unit 232, chilled water reuse.Whole process is arranged without waste water, exhaust gas
It puts, and rationally utilizes waste gas residual heat and natural cold wind, energy-saving and emission-reduction remarkable benefit.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model is also wrapped
Include those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385570.0U CN208406122U (en) | 2018-03-21 | 2018-03-21 | A kind of spray drying tower exhaust gas circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385570.0U CN208406122U (en) | 2018-03-21 | 2018-03-21 | A kind of spray drying tower exhaust gas circulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208406122U true CN208406122U (en) | 2019-01-22 |
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ID=65118448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820385570.0U Active CN208406122U (en) | 2018-03-21 | 2018-03-21 | A kind of spray drying tower exhaust gas circulating device |
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| CN (1) | CN208406122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186252A (en) * | 2019-05-30 | 2019-08-30 | 武汉鹏灏环保设备有限公司 | A kind of environmental protection and energy saving zero-emission spray drying device |
| CN110542304A (en) * | 2019-09-27 | 2019-12-06 | 中国环境科学研究院 | A system for evaporator waste gas, zero discharge of pollutants and solvent recovery |
-
2018
- 2018-03-21 CN CN201820385570.0U patent/CN208406122U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186252A (en) * | 2019-05-30 | 2019-08-30 | 武汉鹏灏环保设备有限公司 | A kind of environmental protection and energy saving zero-emission spray drying device |
| CN110542304A (en) * | 2019-09-27 | 2019-12-06 | 中国环境科学研究院 | A system for evaporator waste gas, zero discharge of pollutants and solvent recovery |
| CN110542304B (en) * | 2019-09-27 | 2024-03-01 | 中国环境科学研究院 | Zero emission and solvent recovery system for waste gas and pollutant of steam stripping machine |
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