CN212962862U - Energy-saving spray dryer - Google Patents
Energy-saving spray dryer Download PDFInfo
- Publication number
- CN212962862U CN212962862U CN202021559373.XU CN202021559373U CN212962862U CN 212962862 U CN212962862 U CN 212962862U CN 202021559373 U CN202021559373 U CN 202021559373U CN 212962862 U CN212962862 U CN 212962862U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- spray
- kiln
- flue
- combustion chamber
- 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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- 239000007921 spray Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Air Supply (AREA)
Abstract
The utility model discloses an energy-saving spray dryer, which comprises a shuttle kiln, wherein a flue is arranged in the kiln tail of the shuttle kiln, a first heat exchanger and a second heat exchanger are arranged in the flue, the first heat exchanger and the second heat exchanger are respectively connected with a combustion fan and a spray blower, and a smoke exhaust fan is arranged at the kiln tail; the air vent of second heat exchanger passes through the connecting pipe and connects in the spray combustion chamber, the row's fog chimney at spray combustion chamber top is connected in the main tower, main tower bottom is connected in the cyclone through first straight tube, the cyclone top is connected in bag collector through the second straight tube, bag collector passes through the induced duct and connects in the draught fan. The utility model discloses the spraying forced draught blower obtains the gas that has the uniform temperature after the heat exchanger heat transfer of kiln tail, and the heat exchanger can obtain clean high temperature hot-air, avoids the pollution problem.
Description
Technical Field
The utility model relates to a spray dryer technical field specifically is an energy-conserving spray dryer.
Background
The heating method of the spray dryer generally includes electric heating, gas heating, steam heating, mixed heating, and the like. At present, the equipment generally takes gas heating as the main reason that the gas cost is low and the equipment can reach higher temperature. The exhaust temperature of the spraying is generally controlled to be about 100 ℃, and the heat contained in the exhaust gas of 100 ℃ is generally utilized for recycling in the traditional spraying energy-saving mode. However, the tail gas contains a large amount of water vapor, carbon dioxide, materials and the like when the fuel gas is heated and sprayed. Generally not directly available. And after heat exchange, recycling. The heat is less, and considering the efficiency of the heat exchanger, the heat which can be really utilized is very less. To this end, we propose an energy-saving spray dryer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-conserving spray drier to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an energy-saving spray dryer comprises a shuttle kiln, wherein a flue is arranged in the kiln tail of the shuttle kiln, a first heat exchanger and a second heat exchanger are arranged in the flue, the first heat exchanger and the second heat exchanger are respectively connected with a combustion fan and a spray blower, and a smoke exhaust fan is arranged at the kiln tail;
the air vent of second heat exchanger passes through the connecting pipe and connects in the spray combustion chamber, the row's fog chimney at spray combustion chamber top is connected in the main tower, main tower bottom is connected in the cyclone through first straight tube, the cyclone top is connected in bag collector through the second straight tube, bag collector passes through the induced duct and connects in the draught fan.
As a further optimization of the technical scheme, the upper part of the flue is connected with a cold air mixing port, the cold air mixing port penetrates through and extends out of the kiln tail, and a manual valve is arranged on the cold air mixing port.
As a further optimization of the technical scheme, the air outlet of the first heat exchanger is connected with the air inlet of the shuttle kiln through a circulating pipeline.
As a further optimization of the technical scheme, the spray combustion chamber can be electrically heated or gas heated, and the first heat exchanger and the second heat exchanger are stainless steel plate type heat exchangers.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the spraying forced draught blower obtains the gas that has the uniform temperature after the heat exchanger heat transfer of kiln tail, and the heat exchanger can obtain clean high temperature hot-air, avoids the pollution problem.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a shuttle kiln 1, a combustion-supporting fan 2, a spray blower 3, a smoke exhaust fan 4, a first heat exchanger 5, a second heat exchanger 6, a flue 7, a kiln tail 8, a cold air mixing port 9, a connecting pipe 10, a spray combustion chamber 11, a main tower 12, a cyclone 13, a first straight pipe 14, a second straight pipe 15, a dust collector 16, a draught fan 17, an induced draft pipe 18, a mist exhaust chimney 19 and a circulating pipeline 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an energy-saving spray dryer comprises a shuttle kiln 1, wherein a flue 7 is arranged in a kiln tail 8 of the shuttle kiln 1, a first heat exchanger 5 and a second heat exchanger 6 are arranged in the flue 7, the first heat exchanger 5 and the second heat exchanger 6 are respectively connected with a combustion-supporting fan 2 and a spray air feeder 3, and a smoke exhaust fan 4 is arranged at the kiln tail 8;
the gas vent of second heat exchanger 6 passes through connecting pipe 10 and connects in spray combustion chamber 11, the row's fog chimney 19 at spray combustion chamber 11 top is connected in main tower 12, main tower 12 bottom is connected in cyclone 13 through first straight tube 14, cyclone 13 top is connected in bag collector 16 through second straight tube 15, bag collector 16 passes through induced duct 18 and connects in draught fan 17.
Specifically, the upper part of the flue 7 is connected with a cold air mixing port 9, the cold air mixing port 9 penetrates through and extends out of the kiln tail 8, and a manual valve is arranged on the cold air mixing port 9.
Specifically, the air outlet of the first heat exchanger 5 is connected to the air inlet of the shuttle kiln 1 through a circulating pipeline 20.
Specifically, the spray combustion chamber 11 may be heated by electricity or gas, and the first heat exchanger 5 and the second heat exchanger 6 are both stainless steel plate heat exchangers.
Specifically, when in use, as the flue gas has a lot of heat after being utilized by the heat exchanger of the shuttle kiln 1, after the problems of the smoke exhaust fan 4, the bearing capacity of a chimney, the cost and the like are comprehensively considered, the flue gas must be cooled to about 200 ℃ by a cold air charging mode through the cold air charging port 9, and can be discharged through the smoke exhaust fan 4, and a lot of heat of smoke exhaust is wasted.
In the beginning of kiln construction, two stainless steel plate heat exchangers (namely a first heat exchanger 5 and a second heat exchanger 6) are arranged at the kiln tail 8. The first heat exchanger 5 is used for supporting combustion of the shuttle kiln 1, the second heat exchanger 6 is a high-efficiency plate heat exchanger and used for spraying, hot air with a certain temperature enters the spraying combustion chamber 11 to be combusted after heat exchange, and is supplied for spraying normal production.
The spraying air feeder 3 obtains gas with certain temperature after heat exchange through the second heat exchanger 6 of the kiln tail 8, the second heat exchanger 6 can obtain clean high-temperature hot air, the pollution problem is avoided, the hot air enters the spraying combustion chamber 11 through the connecting pipe 10, and the spraying combustion chamber 11 can be electrically heated or gas heated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An energy-saving spray dryer comprises a shuttle kiln (1), and is characterized in that: a flue (7) is arranged in a kiln tail (8) of the shuttle kiln (1), a first heat exchanger (5) and a second heat exchanger (6) are arranged in the flue (7), the first heat exchanger (5) and the second heat exchanger (6) are respectively connected with a combustion fan (2) and a spray air feeder (3), and the kiln tail (8) is provided with a smoke exhaust fan (4);
the gas vent of second heat exchanger (6) is connected in spray combustion chamber (11) through connecting pipe (10), the row's fog chimney (19) at spray combustion chamber (11) top are connected in main tower (12), main tower (12) bottom is connected in cyclone (13) through first straight tube (14), cyclone (13) top is connected in pocket type dust collector (16) through second straight tube (15), pocket type dust collector (16) are connected in draught fan (17) through induced duct (18).
2. An energy saving spray dryer according to claim 1, wherein: the upper part of the flue (7) is connected with a cold air charging port (9), the cold air charging port (9) penetrates through and extends out of the kiln tail (8), and a manual valve is arranged on the cold air charging port (9).
3. An energy saving spray dryer according to claim 1, wherein: and the air outlet of the first heat exchanger (5) is connected with the air inlet of the shuttle kiln (1) through a circulating pipeline (20).
4. An energy saving spray dryer according to claim 1, wherein: the spray combustion chamber (11) can be heated by electricity or gas, and the first heat exchanger (5) and the second heat exchanger (6) are stainless steel plate heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021559373.XU CN212962862U (en) | 2020-07-31 | 2020-07-31 | Energy-saving spray dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021559373.XU CN212962862U (en) | 2020-07-31 | 2020-07-31 | Energy-saving spray dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212962862U true CN212962862U (en) | 2021-04-13 |
Family
ID=75344913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021559373.XU Active CN212962862U (en) | 2020-07-31 | 2020-07-31 | Energy-saving spray dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212962862U (en) |
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2020
- 2020-07-31 CN CN202021559373.XU patent/CN212962862U/en active Active
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| GR01 | Patent grant |