CN208398612U - Drying system exhaust gas cooling device and comprehensive waste-heat utilizing device - Google Patents
Drying system exhaust gas cooling device and comprehensive waste-heat utilizing device Download PDFInfo
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- CN208398612U CN208398612U CN201821089873.4U CN201821089873U CN208398612U CN 208398612 U CN208398612 U CN 208398612U CN 201821089873 U CN201821089873 U CN 201821089873U CN 208398612 U CN208398612 U CN 208398612U
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Abstract
The utility model provides a kind of drying system exhaust gas cooling device and comprehensive waste-heat utilizing device, is related to drying system technical field, solves the excessive not energy-efficient and environmental protection of prior art water consumption and the technical issues of thermal energy wastes.The drying system exhaust gas cooling device includes exhaust gas transmission pipeline and heat-exchange device, and the air inlet of exhaust gas transmission pipeline can be connected with the exhaust output tube road of the exhaust producing device of drying system or drying system；The gas outlet of exhaust gas transmission pipeline is connected with the entrance of flue gas purification system；Heat-exchange device is connect with exhaust gas transmission pipeline heat transfer and heat-exchange device can absorb the heat that dry waste gas distributes in exhaust gas transmission pipeline using air；Comprehensive waste-heat utilizing device includes drying system exhaust gas cooling device, it further include the expansion drying system equipped with fiber drying flue gas mixing chamber, Fresh air vent is connected with fiber drying flue gas mixing chamber, and the utility model is used to save water resource and rationally utilizes thermal energy.
Description
Technical field
The utility model relates to drying system technical field, more particularly, to a kind of drying system exhaust gas cooling device and remaining
Hot comprehensive utilization device.
Background technique
Traditional single channel biomass particle drying system is cut, the biomass materials such as stalk for drying wood, and then conduct
The primary raw material of the production lines such as oriented wood chipboard, homogeneous chipboard, biological particles.It is with oriented wood chipboard or homogeneous chipboard
Example, raw material are the wet wood shavings that absolute drift is 60%-110%, are mixed with the high-temperature flue gas that temperature is 400-550 degree,
And then enter single-channel drying machine, after sufficient drying process, wood shavings moisture content is reduced to 1.5%-2% or so, simultaneously
Flue-gas temperature is reduced to 110-130 degree.In the blanking box of drying machine outlet, make dry give up by reducing dry waste gas speed
Gas is separated with wood particle.Deficiency existing for the system has following aspect:
1. the system dry waste gas temperature is higher, thermal energy waste is caused；
2. in order to meet the emission limit of particulate matter, generally using Wetting electrostatic cleaner or water dust scrubber to drying
Exhaust gas is handled.And the temperature of the dry waste gas is 130 degrees centigrades, and it is net using flue gas is met to need to consume a large amount of water
Change the requirement that system entry temperature is not more than 70 degree.
Applicants have discovered that at least there is following technical problem: the excessive not energy-efficient and environmental protection of water consumption and thermal energy wave in the prior art
Take.
Utility model content
The purpose of this utility model is to provide a kind of drying system exhaust gas cooling device and comprehensive waste-heat utilizing device, with
The technical issues of solving the excessive not energy-efficient and environmental protection of water consumption existing in the prior art and thermal energy waste.It is provided by the utility model all
Many technical effects elaboration as detailed below that optimal technical scheme in more technical solutions can be generated.
To achieve the above object, the utility model provides following technical scheme:
Drying system exhaust gas cooling device provided by the utility model includes exhaust gas transmission pipeline and heat-exchange device, institute
The air inlet for stating exhaust gas transmission pipeline can be with the exhaust producing device of drying system or the exhaust output tube road of the drying system
It is connected；The gas outlet of the exhaust gas transmission pipeline is connected with the entrance of flue gas purification system；The heat-exchange device and institute
It states the connection of exhaust gas transmission pipeline heat transfer and the heat-exchange device can absorb drying in the exhaust gas transmission pipeline using air
The heat of exhaust emissions.
Further, the heat-exchange device includes fresh air inlet and Fresh air vent, the fresh air inlet
It is communicated with the atmosphere, fresh air identical with atmospheric temperature passes through dry in the heat-exchange device and the exhaust gas transmission pipeline
Become high temperature fresh air after dry exhaust gas heat exchange and is discharged by the Fresh air vent.
Further, the heat-exchange device include two or two or more heat exchanger tubes, the import of the heat exchanger tube with it is described
Fresh air inlet is connected, and the outlet of the heat exchanger tube is connected with the Fresh air vent.
Further, the exhaust gas transmission pipeline is an integral structure with the heat-exchanger rig, the exhaust gas transmission pipeline packet
Exhaust gas chamber is included, the air inlet and air outlet of the exhaust gas transmission pipeline are arranged on the exhaust gas chamber, and the heat exchanger tube is simultaneously
Row arranges and is uniformly distributed in the exhaust gas chamber.
Further, at least two sets of the drying system exhaust gas cooling device, wherein a set of drying system exhaust gas drop
The dry waste gas cooling that warm device is used for as drying system discharge, at least a set of drying system exhaust gas cooling in addition
Device is as spare.
Further, the air inlet of the exhaust gas transmission pipeline, the gas outlet of the exhaust gas transmission pipeline and institute
It states and is respectively equipped with electric control valve at fresh air inlet.
Further, the drying system is single channel biomass particle drying system, and the single channel biomass wood shavings are dry
Drying system includes single channel chip dryer, and the exhaust output tube road is also connected with the single channel chip dryer, institute
The dry waste gas and high-temperature flue gas for stating the discharge of exhaust output tube road are conveyed into the single channel chip dryer after being pre-mixed.
Further, described state is provided with electric control valve between exhaust output tube road and the single channel chip dryer.
The utility model additionally provides a kind of comprehensive waste-heat utilizing device, including the drying system exhaust gas cooling device,
The comprehensive waste-heat utilizing device further includes the expansion drying system equipped with fiber drying flue gas mixing chamber, and the fresh air goes out
Mouth is connected with the fiber drying flue gas mixing chamber.
Further, medium temperature smoke inlet is additionally provided on the fiber drying flue gas mixing chamber and low temperature fresh air enters
Mouthful.
The utility model has the following beneficial effects:
The dry waste gas that the prior art needs to consume a large amount of water to generate drying system carries out cooling processing, makes drying
The temperature of exhaust gas meets the requirement that flue gas purification system inlet temperature is not more than 70 degree；And drying system provided by the utility model
The dry waste gas of exhaust gas cooling device, the higher temperature being discharged as thermal medium with drying system using normal temperature air carries out heat
Exchange, to reduce the temperature of dry waste gas, makes its temperature reach the temperature range of flue gas purification system entrance requirement, such
Design does not need waste water resource, energy conservation and environmental protection；
Comprehensive waste-heat utilizing device includes drying system exhaust gas cooling device, further includes being equipped with fiber drying flue gas mixing chamber
Expansion drying system；The Fresh air vent of heat-exchange device is discharged raised with temperature after dry waste gas generation heat exchange
Fresh air carries partial heat energy, can be sent to expansion drying system and do to the wet pulp in expansion drying system
Dry, this partial heat energy, which is collected, to be used, and is not wasted.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the utility model drying system exhaust gas cooling device and comprehensive waste-heat utilizing device.
1 in figure, exhaust gas chamber；11, the air inlet of exhaust gas transmission pipeline；12, the gas outlet of exhaust gas transmission pipeline；21, new
Fresh air intake；22, Fresh air vent；23, heat exchanger tube；3, exhaust output tube road；4, flue gas purification system；5, single channel is dug
Flower drying machine；51, high-temperature flue gas entry；52, wet wood shavings；53, wood shavings blanking box；54, dry wood shavings；6, fiber drying flue gas mixes
Room；61, medium temperature smoke inlet；62, low temperature fresh air inlet；63, wet pulp.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
As shown in Figure 1, the utility model provide a kind of drying system exhaust gas cooling device include exhaust gas transmission pipeline with
And heat-exchange device, the air inlet 11 of exhaust gas transmission pipeline can be with the exhaust producing device of drying system or the exhaust gas of drying system
Output channel 3 is connected；The gas outlet 12 of exhaust gas transmission pipeline is connected with the entrance of flue gas purification system 4；Heat-exchange device
It is connect with exhaust gas transmission pipeline heat transfer and heat-exchange device can be absorbed dry waste gas in exhaust gas transmission pipeline using air and be distributed
Heat.
The dry waste gas that the prior art needs to consume a large amount of water to generate drying system carries out cooling processing, makes drying
The temperature of exhaust gas meets the requirement that 4 inlet temperature of flue gas purification system is not more than 70 degree；And dry system provided by the utility model
System exhaust gas cooling device, the dry waste gas for using air as the higher temperature that thermal medium is discharged with drying system carry out hot friendship
It changes, to reduce the temperature of dry waste gas, its temperature is made to reach the temperature range of 4 entrance requirement of flue gas purification system, it is such
Design does not need waste water resource, energy conservation and environmental protection.
Optionally embodiment, heat-exchange device include fresh air inlet 21 and Fresh air vent 22, fresh
Air intake 21 is connected with atmosphere, and fresh air identical with atmospheric temperature passes through in heat-exchange device and exhaust gas transmission pipeline
Dry waste gas heat exchange after become high temperature fresh air and be discharged by Fresh air vent 22.
Since air is inexhaustible, using the fresh air of environment temperature come the drying with higher temperature
Exhaust gas carries out heat exchange, and the temperature of dry waste gas can be reduced to the temperature range requirements for meeting the entrance of flue gas purification system 4
(in such as the present embodiment, it is desirable that temperature is not more than 70 degree), and since heat-exchange device and the exhaust gas transmission pipeline are only heat
Conduction connection, dry waste gas and the fresh air in heat-exchange device are mutually isolated, not will cause fresh air pollution, are heated
Fresh air afterwards can be emitted into certain buffering area of isolation and slowly cool down, and can be immediately discharged to atmosphere after cooling, will not be to ring
Border pollutes.
Optionally embodiment, heat-exchange device include two or two or more heat exchanger tubes 23, heat exchanger tube 23 into
Mouth is connected with fresh air inlet 21, and the outlet of heat exchanger tube 23 is connected with Fresh air vent 22.Due to more heat exchanger tubes
23 surface area is larger, therefore increases exhaust gas transmission pipeline and heat exchange dress in the present embodiment using at least two heat exchanger tubes 23
The heat exchange area set further improves drying system so that the efficiency of the heat exchange of dry waste gas and fresh air improves
Efficiency.
Optionally embodiment, exhaust gas transmission pipeline are an integral structure with heat-exchanger rig, exhaust gas transmission pipeline packet
Exhaust gas chamber 1 is included, the air inlet 11 of exhaust gas transmission pipeline and gas outlet 12 are arranged on exhaust gas chamber 1, and heat exchanger tube 23 is arranged side by side
It arranges and is uniformly distributed in exhaust gas chamber 1.Since heat exchanger tube 23 is arranged side by side and is uniformly distributed in exhaust gas chamber 1, exhaust gas chamber
Dry waste gas in room 1 sufficiently can carry out heat exchange with the low temperature fresh air in heat exchanger tube 23, improve the effect of heat exchange
Rate；The exhaust gas transmission pipeline and heat-exchanger rig installing and dismounting of integral structure are also more convenient.
Optionally embodiment, at least two sets of drying system exhaust gas cooling device, wherein a set of drying system is useless
The dry waste gas cooling that gas cooling device is used for as drying system discharge, at least a set of drying system exhaust gas cooling device in addition
As spare.In the present embodiment, 2 sets of drying system exhaust gas cooling devices (the using and the reserved) are equipped with, are dug using single channel biomass
The dry waste gas for 130 degrees centigrades that flower drying system generates exchanges heat with low temperature fresh air, and the drying after heat exchange is useless
Temperature degree be reduced to 70 degrees Celsius hereinafter, flue gas purification system 4 can be directly entered.Based on dust in dry waste gas and vapor
More reasons, heat-exchange device reduce heat exchange efficiency because ash content adheres to after a period of work, can close dust attachment
Heat-exchange device comes into operation another set of spare clean heat-exchange device, while carrying out to dirty heat-exchange device clear
It washes, the mode of this using and the reserved ensure that the normal operation of drying system, will not be because of the unique drying system exhaust gas of cleaning
Cooling device causes drying system to be stopped transport, and influences production efficiency.
Optionally embodiment, the air inlet 11 of exhaust gas transmission pipeline, the gas outlet 12 of exhaust gas transmission pipeline and new
Electric control valve is respectively equipped at fresh air intake 21.Due to needing to control the temperature of dry waste gas at 70 degrees Celsius hereinafter,
So exhaust gas transmission pipeline is controlled with the output of dry waste gas in heat-exchange device and fresh air needs, therefore in exhaust gas
Electrically operated valve is respectively equipped at the air inlet 11 of transmission pipeline, the gas outlet 12 of exhaust gas transmission pipeline and fresh air inlet 21
, the temperature of dry waste gas is not higher than 70 degrees Celsius at the gas outlet 12 to guarantee exhaust gas transmission pipeline.
Optionally embodiment, drying system are single channel biomass particle drying system, single channel biomass plane
Flower drying system includes single channel chip dryer 5, and exhaust output tube road 3 is also connected with single channel chip dryer 5, exhaust gas
Single channel chip dryer 5 is conveyed into after dry waste gas and the high-temperature flue gas premixing that output channel 3 is discharged.Due to single-pass
The high-temperature flue gas provided at the high-temperature flue gas entry 51 that chip dryer 5 entrance in road is connected is 800 degrees Celsius, is unsatisfactory for single-pass
The flue-gas temperature that chip dryer 5 entrance in road is able to bear is 400-550 degrees Celsius of requirement, therefore can will be a part of
130 degrees Celsius of dry waste gas leads at 800 celsius temperature flue gases and is pre-mixed, meet the temperature of combination drying exhaust gas
400-550 degrees Celsius of requirement；Raw material is the wet wood shavings 52 that absolute drift is 60%-110%, is 400-550 degree with temperature
Combination drying exhaust gas mixed, and then enter single channel chip dryer 5, after sufficient drying process, wood shavings contain
Water rate is reduced to 1.5%-2% or so, while flue-gas temperature is reduced to 110-130 degree.It is exported in single channel chip dryer 5
In wood shavings blanking box 53, by reducing 110-130 degree dry waste gas speed dry waste gas is separated with dry wood shavings 54, and
Dry waste gas can be continued dry by dispatch to drying system exhaust gas cooling device or single channel wood shavings by exhaust output tube road 3
The inlet of dry machine 5.
Optionally embodiment is provided with electrically operated valve between exhaust output tube road 3 and single channel chip dryer 5
Door.Flue-gas temperature due to entering single channel chip dryer 5 needs to control in 500 degrees centigrades, it is therefore desirable to adjust 800
Degree Celsius high-temperature flue gas and 130 degrees Celsius of dry waste gas ratio to which the control of the temperature of mixed flue gas is Celsius 500
Degree, therefore electric control valve is provided in the present embodiment between exhaust output tube road 3 and single channel chip dryer 5, to control
The input ratio of 800 celsius temperature flue gases and 130 degrees Celsius of dry waste gas.
As shown in Figure 1, the utility model additionally provides a kind of comprehensive waste-heat utilizing device, including the cooling of drying system exhaust gas
Device, comprehensive waste-heat utilizing device further include the expansion drying system equipped with fiber drying flue gas mixing chamber 6, Fresh air vent
22 are connected with fiber drying flue gas mixing chamber 6.
Comprehensive waste-heat utilizing device provided by the utility model includes drying system exhaust gas cooling device, further includes being equipped with fibre
The expansion drying system of dry flue gas mixing chamber 6 is tieed up, expansion drying system can be dried wet using the dry flue gas of higher temperature
Slurry 63；And the fresh air of higher temperature that the Fresh air vent 22 of heat-exchange device is discharged carries partial heat energy, it can be with
It is sent to the fiber drying flue gas mixing chamber 6 of expansion drying system and further the wet pulp 63 in expansion drying system is done
Dry, this partial heat energy, which is collected, to be used, and is not wasted, and meets energy-saving and environment-friendly theory.
Optionally embodiment is additionally provided with medium temperature smoke inlet 61 and low temperature on fiber drying flue gas mixing chamber 6
Fresh air inlet 62.The thermal energy carried due to the fresh air of the higher temperatures of the discharge of Fresh air vent 22 of heat-exchange device
It is limited, so medium temperature smoke inlet 61 and low temperature fresh air inlet 62 are additionally provided on fiber drying flue gas mixing chamber 6, this
Fresh air, medium temperature flue gas and the low temperature fresh air of sample higher temperatures can be mixed in fiber drying flue gas mixing chamber 6,
And the temperature of combination drying flue gas is controlled by the mixed proportion of three, in the present embodiment, the temperature of medium temperature flue gas is taken the photograph for 350
Family name's degree, the temperature of low temperature fresh air are 20 degrees centigrades, the fresh air for the higher temperatures that Fresh air vent 22 is discharged
Temperature is 100 degrees Celsius, and the combination drying flue gas for drying the needs of wet pulp 63 is 170 degrees Celsius；Quilt after combination drying flue gas
Air-introduced machine is led at wet pulp 63, and wet pulp 63 is dried to fiber.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of drying system exhaust gas cooling device, which is characterized in that including exhaust gas transmission pipeline and heat-exchange device,
In:
The air inlet of the exhaust gas transmission pipeline can be defeated with the exhaust producing device of drying system or the exhaust gas of the drying system
Pipeline is connected out；The gas outlet of the exhaust gas transmission pipeline is connected with the entrance of flue gas purification system；The heat exchange dress
It sets and is connect with the exhaust gas transmission pipeline heat transfer and the heat-exchange device can absorb the exhaust gas transmission pipeline using air
The heat that interior dry waste gas distributes.
2. drying system exhaust gas cooling device according to claim 1, which is characterized in that the heat-exchange device includes new
Fresh air intake and Fresh air vent, the fresh air inlet are connected with atmosphere, fresh sky identical with atmospheric temperature
Gas is by becoming high temperature fresh air simultaneously after the dry waste gas heat exchange in the heat-exchange device and the exhaust gas transmission pipeline
It is discharged by the Fresh air vent.
3. drying system exhaust gas cooling device according to claim 2, which is characterized in that the heat-exchange device includes two
Root or two or more heat exchanger tube, the import of the heat exchanger tube are connected with the fresh air inlet, the outlet of the heat exchanger tube
It is connected with the Fresh air vent.
4. drying system exhaust gas cooling device according to claim 3, which is characterized in that the exhaust gas transmission pipeline and institute
It states heat-exchanger rig to be an integral structure, the exhaust gas transmission pipeline includes exhaust gas chamber, the air inlet of the exhaust gas transmission pipeline
It is arranged on the exhaust gas chamber with gas outlet, the heat exchanger tube is arranged side by side and is uniformly distributed in the exhaust gas chamber.
5. drying system exhaust gas cooling device according to claim 4, which is characterized in that the drying system exhaust gas cooling
At least two sets of device, wherein a set of drying system exhaust gas cooling device is used to give up for the drying of drying system discharge
Gas cooling, at least a set of drying system exhaust gas cooling device in addition is as spare.
6. drying system exhaust gas cooling device according to claim 5, which is characterized in that the institute of the exhaust gas transmission pipeline
It states and is respectively equipped with electric control valve at the gas outlet and the fresh air inlet of air inlet, the exhaust gas transmission pipeline.
7. drying system exhaust gas cooling device according to claim 1, which is characterized in that the drying system is single channel
Biomass particle drying system, the single channel biomass particle drying system include single channel chip dryer, the exhaust gas
Output channel is also connected with the single channel chip dryer, the dry waste gas and high temperature cigarette of the exhaust output tube road discharge
The single channel chip dryer is conveyed into after gas premixing.
8. drying system exhaust gas cooling device according to claim 7, which is characterized in that it is described state exhaust output tube road with
Electric control valve is provided between the single channel chip dryer.
9. a kind of comprehensive waste-heat utilizing device, which is characterized in that including any drying system exhaust gas drop of claim 2-6
Warm device, the comprehensive waste-heat utilizing device further include the expansion drying system equipped with fiber drying flue gas mixing chamber, described new
Fresh air outlet slit is connected with the fiber drying flue gas mixing chamber.
10. comprehensive waste-heat utilizing device according to claim 9, which is characterized in that the fiber drying flue gas mixing chamber
On be additionally provided with medium temperature smoke inlet and low temperature fresh air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089873.4U CN208398612U (en) | 2018-07-10 | 2018-07-10 | Drying system exhaust gas cooling device and comprehensive waste-heat utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821089873.4U CN208398612U (en) | 2018-07-10 | 2018-07-10 | Drying system exhaust gas cooling device and comprehensive waste-heat utilizing device |
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| Publication Number | Publication Date |
|---|---|
| CN208398612U true CN208398612U (en) | 2019-01-18 |
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ID=65131385
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821089873.4U Active CN208398612U (en) | 2018-07-10 | 2018-07-10 | Drying system exhaust gas cooling device and comprehensive waste-heat utilizing device |
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| CN (1) | CN208398612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736331A (en) * | 2019-10-23 | 2020-01-31 | 深圳龙澄高科技环保股份有限公司 | Heat-carrying air source system of garbage dryer |
-
2018
- 2018-07-10 CN CN201821089873.4U patent/CN208398612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736331A (en) * | 2019-10-23 | 2020-01-31 | 深圳龙澄高科技环保股份有限公司 | Heat-carrying air source system of garbage dryer |
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