CN213686888U - Energy-saving combustion furnace for boiling alkali liquor - Google Patents
Energy-saving combustion furnace for boiling alkali liquor Download PDFInfo
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- CN213686888U CN213686888U CN202022136964.2U CN202022136964U CN213686888U CN 213686888 U CN213686888 U CN 213686888U CN 202022136964 U CN202022136964 U CN 202022136964U CN 213686888 U CN213686888 U CN 213686888U
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- air
- flue gas
- heat exchange
- exchange pipeline
- air supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses an energy-saving combustion furnace for cooking alkali liquor, which comprises an air supply device, a cooking device and a flue gas emission tower, wherein the air outlet of the air supply device is communicated with the air inlet of the cooking device, the air outlet of the cooking device is communicated with the bottom of the flue gas emission tower, the air supply device comprises a heat exchange pipeline, an air supply fan and an air supply pipe, the heat exchange pipeline is positioned in the flue gas emission tower, the heat exchange pipeline spirally winds on the inner wall of the flue gas emission tower to absorb the heat of the flue gas in the flue gas emission tower, the upper end of the heat exchange pipeline is provided with the air inlet, the bottom of the heat exchange pipeline is provided with the air outlet, the air outlet of the heat exchange pipeline is communicated with the air inlet of the air supply fan through a pipeline, the air outlet of the air supply fan is communicated with one end of the air supply pipe, the other end of the air supply, to control the admission of air. The heat in the flue gas is used for heating the air, so that the consumption of fuel can be reduced.
Description
Technical Field
The utility model relates to a flake caustic soda processing technology field especially relates to an energy-conserving combustion furnace of alkali lye of cooking.
Background
The processing flow of the flake caustic soda comprises the steps of boiling low-concentration alkali liquor, heating at high temperature to form molten liquid caustic soda, and extruding, cooling and shaping to form the flake caustic soda. When the lye is cooked and heated, a large amount of heat is needed, so that a great deal of energy is consumed. Bringing a great burden to the environment and also bringing high cost to the operation of enterprises.
Disclosure of Invention
In view of the above, there is a need for an energy-saving combustion furnace for cooking alkali liquor with high environmental protection and high efficiency.
An energy-saving combustion furnace for cooking alkali liquor comprises an air supply device, a cooking device and a flue gas emission tower, wherein an air outlet of the air supply device is communicated with an air inlet of the cooking device, an air outlet of the cooking device is communicated with the bottom of the flue gas emission tower, the air supply device comprises a heat exchange pipeline, an air supply fan and an air supply pipe, the heat exchange pipeline is positioned in the flue gas emission tower, the heat exchange pipeline is spirally wound on the inner wall of the flue gas emission tower to absorb the heat of the flue gas in the flue gas emission tower, an air inlet is arranged at the upper end of the heat exchange pipeline, an air outlet is arranged at the bottom of the heat exchange pipeline, the air outlet of the heat exchange pipeline is communicated with an air inlet of the air supply fan through a pipeline, the air outlet of the air supply fan is communicated with one end of the air supply pipe, the other end of the air supply pipe is communicated, to control the admission of air.
Preferably, the valve on the air supply pipe is a flow valve to control the flow of air into the cooking device.
Preferably, boiling device includes a plurality of combustion chambers, a plurality of alkali lye pots, a plurality of combustion chambers are parallelly connected, the air intake and the air supply pipe intercommunication of the combustion chamber of head end, the air that is heated gets into the combustion chamber from the air supply pipe, the air outlet and the bottom intercommunication of flue gas emission tower of the combustion chamber of tail end to gas after will burning passes through the flue gas emission tower and discharges, the alkali lye pot is located the top of combustion chamber, the quantity of alkali lye pot corresponds with the quantity of combustion chamber, contains alkali lye in the alkali lye pot, with the heat heating alkali lye that produces through the burning.
Preferably, the heat exchange pipeline is a stainless steel pipeline, the outer side of the heat exchange pipeline is attached to the flue gas emission tower, the inner side of the heat exchange pipeline is arc-shaped to increase the contact area of the flue gas and the heat exchange pipeline, and the air inlet of the heat exchange pipeline is located on the side wall of the flue gas emission tower to prevent the emitted flue gas from entering the heat exchange pipeline again.
Preferably, the outer wall of the flue gas emission tower is provided with a heat insulation layer so as to reduce the loss of heat from the side wall of the flue gas emission tower.
Preferably, a plurality of layers of flow baffles are arranged in the flue gas discharge tower, and the flow baffles are obliquely arranged so as to reduce the speed of flue gas discharge and increase the residence time of the flue gas.
Has the advantages that: the utility model discloses an energy-saving combustion furnace for cooking alkali liquor, which comprises an air supply device, a cooking device and a flue gas emission tower, wherein the air outlet of the air supply device is communicated with the air inlet of the cooking device, the air outlet of the cooking device is communicated with the bottom of the flue gas emission tower, the air supply device comprises a heat exchange pipeline, an air supply fan and an air supply pipe, the heat exchange pipeline is positioned in the flue gas emission tower, the heat exchange pipeline spirally winds on the inner wall of the flue gas emission tower to absorb the heat of the flue gas in the flue gas emission tower, the upper end of the heat exchange pipeline is provided with the air inlet, the bottom of the heat exchange pipeline is provided with the air outlet, the air outlet of the heat exchange pipeline is communicated with the air inlet of the air supply fan through a pipeline, the air outlet of the air supply fan is communicated with one end of the air supply pipe, the other end of the air supply, to control the admission of air. The heat in the flue gas is used for heating the air, so that the consumption of fuel can be reduced. Especially in winter, the outside temperature is very low and the air entering the cooking device consumes more heat. And the temperature of the air entering the cooking device is increased in advance, so that the consumption of heat can be effectively reduced.
Drawings
FIG. 1 is a schematic structural view of the energy-saving combustion furnace for boiling alkali liquor.
FIG. 2 is a partial sectional view of the energy-saving combustion furnace for boiling alkali liquor.
Fig. 3 is a schematic structural diagram of a preferred embodiment of the flue gas discharging tower of the present invention.
In the figure: the energy-saving alkali liquor cooking device comprises an energy-saving alkali liquor cooking combustion furnace 10, an air supply device 20, a heat exchange pipeline 201, a valve 2011, an air supply fan 202, an air supply pipe 203, a cooking device 30, a combustion chamber 301, an alkali liquor pot 302, a flue gas discharge tower 40 and a flow baffle plate 401.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 and 2, an energy-saving combustion furnace 10 for cooking alkali liquor comprises an air supply device 20, a cooking device 30, and a flue gas discharge tower 40, wherein an air outlet of the air supply device 20 is communicated with an air inlet of the cooking device 30, an air outlet of the cooking device 30 is communicated with the bottom of the flue gas discharge tower 40, the air supply device 20 comprises a heat exchange pipeline 201, an air supply fan 202, and an air supply pipe 203, the heat exchange pipeline 201 is positioned in the flue gas discharge tower 40, the heat exchange pipeline 201 is spirally wound on the inner wall of the flue gas discharge tower 40 to absorb heat of flue gas in the flue gas discharge tower 40, an air inlet is arranged at the upper end of the heat exchange pipeline 201, an air outlet is arranged at the bottom of the heat exchange pipeline 201, the air outlet of the heat exchange pipeline 201 is communicated with an air inlet of the air supply fan 202 through a pipeline, an air outlet of the air supply fan 202 is communicated with one end, so as to introduce the heated air into the cooking device 30 for combustion, and a valve 2011 is disposed on the air supply pipe 203 to control the air to enter.
The helical heat exchange duct 201 makes it possible to increase the residence time of the air in the fume-discharge tower 40, thus making it possible to increase the temperature of the air entering the cooking device 30.
Further, a valve 2011 of the air supply pipe 203 is a flow valve to control the flow of air entering the cooking device 30.
Further, the cooking device 30 comprises a plurality of combustion chambers 301 and a plurality of alkali lye pots 302, wherein the combustion chambers 301 are connected in parallel, an air inlet of the combustion chamber 301 at the head end is communicated with the air supply pipe 203, heated air enters the combustion chamber 301 from the air supply pipe 203, an air outlet of the combustion chamber 301 at the tail end is communicated with the bottom of the flue gas emission tower 40 so as to discharge combusted gas through the flue gas emission tower 40, the alkali lye pots 302 are positioned above the combustion chambers 301, the number of the alkali lye pots 302 corresponds to that of the combustion chambers 301, and alkali lye is contained in the alkali lye pots 302 so as to heat the alkali lye through heat generated by combustion.
Further, the heat exchange pipeline 201 is a stainless steel pipeline, the outer side of the heat exchange pipeline 201 is attached to the flue gas emission tower 40, the inner side of the heat exchange pipeline 201 is arc-shaped to increase the contact area between the flue gas and the heat exchange pipeline 201, and the air inlet of the heat exchange pipeline 201 is located on the side wall of the flue gas emission tower 40 to prevent the discharged flue gas from entering the heat exchange pipeline 201 again.
Further, an insulating layer is arranged on the outer wall of the flue gas emission tower 40 to reduce the loss of heat from the side wall of the flue gas emission tower 40.
Further, referring to fig. 3, a plurality of layers of baffle plates 401 are disposed in the flue gas discharging tower 40, and the baffle plates 401 are disposed in an inclined manner to reduce the speed of discharging the flue gas and increase the residence time of the flue gas. Meanwhile, the solid particles in the flue gas can be retained under the action of the flow baffle 401, so that the emission of the solid particles is reduced.
In a preferred embodiment, the flow blocking plates 401 are rectangular, and the flow blocking plates 401 in different layers are distributed in a staggered manner, so that the smoke in different positions can be blocked.
In another preferred embodiment, the baffle 401 is a louver.
Assuming that the volume of air entering the combustion chamber 301 and the volume of air exiting the combustion chamber 301 are approximately equal, the specific heat capacity is also approximately the same. Taking winter as an example, if the outside air is at minus 10 ℃, and the discharged flue gas is at 80 ℃, the heat consumed by the flue gas is the heat required for increasing from minus 10 ℃ to 80 ℃. If the air can be heated to 35 ℃ by the flue gas, the general heat consumption can be reduced, and thus, the fuel consumption can be well saved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. An energy-saving combustion furnace for cooking alkali liquor is characterized in that: comprises an air supply device, a cooking device and a flue gas discharge tower, wherein an air outlet of the air supply device is communicated with an air inlet of the cooking device, an air outlet of the cooking device is communicated with the bottom of the flue gas discharge tower, the gas supply device comprises a heat exchange pipeline, a gas supply fan and a gas supply pipe, the heat exchange pipeline is positioned in the smoke discharge tower, and the heat exchange pipeline is spirally coiled on the inner wall of the smoke discharge tower, so as to absorb the heat of the flue gas in the flue gas emission tower, the upper end of the heat exchange pipeline is provided with an air inlet, the bottom of the heat exchange pipeline is provided with an air outlet, the air outlet of the heat exchange pipeline is communicated with the air inlet of the air supply fan through a pipeline, the air outlet of the air supply fan is communicated with one end of an air supply pipe, the other end of the air supply pipe is communicated with the cooking device, the heated air is introduced into the cooking device for combustion, and the air supply pipe is provided with a valve to control the air to enter.
2. The energy-saving combustion furnace for cooking alkali liquor as claimed in claim 1, wherein: the valve on the air supply pipe is a flow valve to control the flow of air entering the cooking device.
3. The energy-saving combustion furnace for cooking alkali liquor as claimed in claim 1, wherein: the boiling device includes a plurality of combustion chambers, a plurality of alkali lye pots, a plurality of combustion chambers are parallelly connected, the air intake and the air supply pipe intercommunication of the combustion chamber of head end, the air that is heated gets into the combustion chamber from the air supply pipe, the air outlet of the combustion chamber of tail end and the bottom intercommunication of flue gas emission tower to gas after will burning passes through the flue gas and discharges in the tower, the alkali lye pot is located the top of combustion chamber, the quantity of alkali lye pot corresponds with the quantity of combustion chamber, contains alkali lye in the alkali lye pot, with the heat heating alkali lye that produces through the burning.
4. The energy-saving combustion furnace for cooking alkali liquor as claimed in claim 1, wherein: the heat exchange pipeline is a stainless steel pipeline, the outer side of the heat exchange pipeline is attached to the smoke discharge tower, the inner side of the heat exchange pipeline is arc-shaped to increase the contact area of smoke and the heat exchange pipeline, and the air inlet of the heat exchange pipeline is located on the side wall of the smoke discharge tower to prevent the discharged smoke from entering the heat exchange pipeline again.
5. The energy-saving combustion furnace for cooking alkali liquor as claimed in claim 1, wherein: and the outer wall of the flue gas emission tower is provided with a heat insulation layer so as to reduce the loss of heat from the side wall of the flue gas emission tower.
6. The energy-saving combustion furnace for cooking alkali liquor as claimed in claim 1, wherein: the flue gas discharging tower is internally provided with a plurality of layers of flow baffles which are obliquely arranged so as to reduce the speed of discharging flue gas and increase the residence time of the flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022136964.2U CN213686888U (en) | 2020-09-25 | 2020-09-25 | Energy-saving combustion furnace for boiling alkali liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022136964.2U CN213686888U (en) | 2020-09-25 | 2020-09-25 | Energy-saving combustion furnace for boiling alkali liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213686888U true CN213686888U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022136964.2U Active CN213686888U (en) | 2020-09-25 | 2020-09-25 | Energy-saving combustion furnace for boiling alkali liquor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213686888U (en) |
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2020
- 2020-09-25 CN CN202022136964.2U patent/CN213686888U/en active Active
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