CN112577309A - Grain desiccator waste gas recovery utilizes equipment - Google Patents
Grain desiccator waste gas recovery utilizes equipment Download PDFInfo
- Publication number
- CN112577309A CN112577309A CN202010036111.3A CN202010036111A CN112577309A CN 112577309 A CN112577309 A CN 112577309A CN 202010036111 A CN202010036111 A CN 202010036111A CN 112577309 A CN112577309 A CN 112577309A
- Authority
- CN
- China
- Prior art keywords
- hot
- waste gas
- drying tower
- air channel
- air
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/083—Humidity by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses waste gas recycling equipment of a grain dryer, which relates to the technical field of grain drying, in particular to the waste gas recycling equipment of the grain dryer. The separation equipment is arranged in the air return channel, the waste gas is removed from impurities and partial water vapor brought out from the drying tower when passing through the separation equipment, and then the waste heat gas is conveyed to the hot air furnace to be heated and then conveyed to the heat exchange chamber to be dried on the grains, so that the purpose of recycling the waste heat in the waste gas is achieved, the energy consumption of heating the air is reduced, and the cost of drying the grains is reduced.
Description
Technical Field
The invention relates to the technical field of grain drying, in particular to waste gas recycling equipment of a grain drying machine.
Background
With the increasing agricultural production and income increase of China and the requirement of China for realizing urbanization, China has entered the well-being society. The agriculture is largely produced by mechanization, and the drying tower slowly enters the agricultural production link. And because China is to improve the living standard of people, the environmental requirements are increasing day by day. The original dryer heat energy device in China mainly takes coal and straw as main materials, and although the production cost is relatively low, the discharged gases such as sulfur dioxide, carbon monoxide and carbon dioxide can seriously damage the atmosphere. The energy is greatly improved in China to reduce the environmental pollution index, but the relative cost of the novel clean energy is higher, the profit margin of a grain dryer user is reduced, the grain productivity and the purchase rate are weakened, the whole grain production process is mechanically decelerated, and the urbanization development speed is also reduced. Under the existing conditions, the drying equipment which can effectively exert the full utilization of novel clean energy, improve the energy utilization efficiency and reduce the pollution is urgently needed.
Disclosure of Invention
In order to solve the defects of high cost and much dust in the prior drying technology, the invention provides the following technical scheme:
a grain drier exhaust gas recycle apparatus, including drying tower, hot-blast furnace, air heater, hot-blast air channel, characterized by that the hot-blast air supplied by the hot-blast furnace is pressurized by the air heater and entered the drying tower through the hot-blast air channel, the exhaust gas is recycled and entered the hot-blast furnace through the return air channel; and a separating device is arranged in the return air channel, and impurities and part of water vapor brought out from the drying tower are removed when the waste gas passes through the separating device.
The outer wall of the drying tower is provided with an air inlet, one end of the hot air channel is fixedly sleeved in the air inlet, the side face of the drying tower is provided with a gas collecting hood, the inner cavity of the gas collecting hood is fixedly sleeved with a connecting device, and one end of the connecting device, which is far away from the gas collecting hood, is fixedly connected with the return air channel.
The return air channel can be divided into two parts, and first connecting tube links to each other with the drying tower, keeps away from connecting device's one end and splitter's import fixed connection, and splitter's exit is connected with the second connecting tube, the one end fixed connection hot-blast furnace of second connecting tube.
In order to better control production, the other end of the second connecting pipeline is fixedly connected with an adjusting device, and the other end of the adjusting device is connected with the hot blast stove.
In order to save installation space, the adjusting device and the separating device can be designed as one body.
The hot air blower can be a plurality of hot air blowers which are respectively connected with the drying tower through corresponding hot air channels.
The return air channels can be multiple, are respectively connected with the drying tower through corresponding gas-collecting hoods, and are connected with the separating device after being combined.
The inner cavity of the separation equipment can be provided with a filter screen and a moisture adsorber.
In order to clean the production environment, an impurity storage tank can be arranged below the gas collecting hood.
The invention provides a waste gas recycling device of a grain dryer, which has the following beneficial effects:
1. this grain drier waste gas recycle equipment through the outside at the drying tower installs the gas collecting channel additional for the gas collecting channel can collect from exhaust-gas discharge port exhaust waste gas, and through the separation equipment with impurity and most moisture separation in the waste heat gas, send waste heat gas to the hot-blast furnace again and heat. The temperature of the air entering the hot blast stove is effectively improved, so that the purpose of recycling waste heat in the waste gas is achieved, the energy consumption for heating the air is reduced, and the cost for drying grains is reduced.
2. This grain drier waste gas recycle equipment through adding adjusting device in one preceding process at the hot-blast furnace, utilizes the valve that sets up on the adjusting device and the air quantity among the cooperation effective control entering adjusting device of atmospheric pressure to make the heat-conduction efficiency of waste gas and cold air reach the maximize, effectively improved the thermal utilization ratio in the waste gas, reached energy saving, the purpose of environmental protection.
3. The technology used by the invention subverts the conventional thought that people think that grain drying can only adopt dry hot air for drying, thereby improving the inlet temperature of the hot blast stove and saving energy consumption.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a drying tower according to the present invention;
FIG. 3 is a side view of a drying tower of the present invention;
fig. 4 is a schematic view of the installation of the drying tower and the gas collecting hood of the present invention.
In the figure: 1. a drying tower; 2. a base; 3. a hot air passage; 4. a heat exchange chamber; 5. an exhaust gas discharge port; 6. a gas-collecting hood; 7. a connecting device; 8. a hot blast stove; 9. a first air heater; 10. a second air heater; 11. an air cooler; 12. a separation device; 13. a first connecting pipe; 14. a second connecting pipe; 15. and (4) an adjusting device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a grain desiccator waste gas recycle equipment, including drying tower 1, drying tower 1's bottom fixed mounting has base 2, be equipped with heat exchange chamber 4 in the 1 inner chamber of drying tower, drying tower 1's outer wall fixed mounting has hot air duct 3, the fresh air inlet has been seted up to drying tower 1's outer wall, hot air duct 3's one end is fixed the cup joint in the fresh air inlet, exhaust outlet 5 has evenly been seted up to the outer wall of heat exchange chamber 4 both sides, drying tower 1's side is provided with gas collecting channel 6, through the collection of gas collecting channel 6 to waste gas, and through the impurity and the moisture separation of splitter 12 in to the waste gas, dry grain from the inside of new transport to heat exchange chamber 4 with the waste gas heating again. The utilization rate of waste gas is improved, the energy consumption for heating air is reduced, and the drying cost is saved.
The inner cavity of the gas collecting hood 6 is fixedly sleeved with a connecting device 7, one end of the connecting device 7, far away from the gas collecting hood 6, is fixedly sleeved with a first connecting pipeline 13, one end of the first connecting pipeline 13, far away from the connecting device 7, is fixedly connected with a separating device 12, the outlet of the separating device 12 is connected with a second connecting pipeline 14, one end of the second connecting pipeline 14 is fixedly connected with an adjusting device 15, the port of the adjusting device 15 is connected with a hot blast stove 8, the hot blast stove 8 is connected with a first hot air blower 9 and a second hot air blower 10, the air outlets of the first hot air blower 9 and the second hot air blower 10 are connected with the inner cavity of the hot air channel 3, and the bottom of the.
Wherein, the air outlet of first air heater 9 and second air heater 10 is located hot air duct 3's both ends respectively, the air intake of air-cooler 11 is located the below of first air heater 9 and second air heater 10, separate the air outlet of first air heater 9 and second air heater 10, make the hot-air distribution's that gets into in heat exchange chamber 4 relatively even, thereby improve the drying efficiency of grain, air-cooler 11 is arranged in adjusting the temperature in heat exchange chamber 4, when the higher meeting of temperature in heat exchange chamber 4 destroys grain, let in cold air in heat exchange chamber 4.
Wherein, the side of gas collecting channel 6 is equipped with the air exit, and connecting device 7 is connected with the air exit, and connecting device 7 is used for carrying waste gas to get into splitter 12.
The number of the gas collecting hoods 6 is two, the two gas collecting hoods 6 are respectively located on two sides of the drying tower 1, the gas collecting hoods 6 cover the outer side of the exhaust gas discharge port 5, partial impurities, moisture and waste heat-containing air discharged by the drying tower 1 are collected in the gas collecting hoods 6, a part of heavier impurities are automatically separated according to the principle of object gravity, and dry hot air with lighter specific gravity and partial impurities enter the separation device 12 through a pipeline.
Wherein, the adjusting device 15 is provided with an air inlet, the air inlet is provided with a valve, the inner cavity of the adjusting device 15 is connected with an air pressure gauge adjusting device 15, the adjusting device 15 is used for adjusting the air quantity entering the hot blast stove 8, the quantity of cold air entering the adjusting device 15 is adjusted according to the proportion, so that the heat transfer utilization rate of the cold air and the dry hot air is maximized, the air pressure gauge is used for judging the quantity of the cold air entering the adjusting device 15, and the cold air entering is controlled through the valve.
Wherein, be provided with filter screen and moisture adsorber in the inner chamber of splitter 12, the inside of gas collecting channel 6 is provided with the impurity bin, and the impurity in the waste gas in the gas collecting channel 6 can drop in the impurity bin in gas collecting channel 6 because self gravity, and a large amount of dry hot-blast carries with moisture and a small amount of impurity and gets into splitter 12 and separates once more, and splitter 12 is arranged in with the moisture and the separation of magazine filtering in the waste gas, carry into adjusting device 15 with dry hot-blast.
When the hot air heating device is used, the hot air furnace 8 heats cold air, hot air in the hot air furnace 8 is conveyed into the hot air channel 3 in the drying tower 1 through the first hot air heater 9 and the second hot air heater 10, and enters the heat exchange chamber 4 of the inner cavity of the drying tower 1 through the hot air channel 3. Waste gas after drying grains enters the inside of the gas collecting hood 6 through the waste gas discharge port 5, part of impurities fall in the inside of the gas collecting hood 6, part of the waste gas carries moisture to enter the separation device 12 through the first connecting pipeline 13 through the connecting device 7, the moisture and the impurities in the waste gas are filtered through the separation device 12, the waste gas enters the adjusting device 15 through the second connecting pipeline 14, a valve at the air inlet of the adjusting device 15 is opened, air enters the inside of the adjusting device 15, the air inlet amount is judged according to the numerical value of a barometer, then the valve is closed, the gas mixed with air and the waste gas enters the hot blast stove 8 to be heated, and finally the air enters the heat exchange chamber 4 in the drying tower 1 through the first hot air fan 9 and the second hot air fan 10.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A grain drier exhaust gas recycle apparatus, including drying tower, hot-blast furnace, air heater, hot-blast air channel, characterized by that the hot-blast air supplied by the hot-blast furnace is pressurized by the air heater and entered the drying tower through the hot-blast air channel, the exhaust gas is recycled and entered the hot-blast furnace through the return air channel; and a separating device is arranged in the return air channel, and impurities and part of water vapor brought out from the drying tower are removed when the waste gas passes through the separating device.
2. The waste gas recycling device of the grain drier according to claim 1, comprising a drying tower, a hot blast stove, a hot air blower, a hot air channel and a return air channel, and characterized in that: the outer wall of the drying tower is provided with an air inlet, one end of the hot air channel is fixedly sleeved in the air inlet, the side face of the drying tower is provided with a gas collecting hood, the inner cavity of the gas collecting hood is fixedly sleeved with a connecting device, and one end, far away from the gas collecting hood, of the connecting device is fixedly connected with the air return channel.
3. The waste gas recycling device of the grain drier as claimed in claims 1 to 2, which comprises a drying tower, a hot blast stove, a hot air blower, a hot air channel and a return air channel, and is characterized in that: the return air channel is divided into two parts, a first connecting pipeline is connected with the drying tower, one end of the return air channel, which is far away from the connecting device, is fixedly connected with an inlet of the separating device, an outlet of the separating device is connected with a second connecting pipeline, and one end of the second connecting pipeline is fixedly connected with the hot blast stove.
4. The waste gas recycling device of the grain drier according to claim 3, comprising a drying tower, a hot blast stove, a hot blast machine, a hot blast channel and a return air channel, wherein the return air channel is divided into two parts, a first connecting pipeline and a second connecting pipeline, the two pipelines are connected through a separating device, and the waste gas recycling device is characterized in that: the other end of the second connecting pipeline is fixedly connected with an adjusting device, and the other end of the adjusting device is connected with the hot blast stove.
5. The waste gas recycling device of the grain dryer as claimed in claim 4, wherein the return air channel is connected with a regulating device, and the waste gas recycling device is characterized in that: the separating means and the adjusting means may be integral.
6. The waste gas recycling device of the grain drier as claimed in claims 1 to 5, comprising a drying tower, a hot blast stove, a hot air blower, a hot air channel and a return air channel, and characterized in that: the hot air blower can be a plurality of hot air blowers which are respectively connected with the drying tower through corresponding hot air channels.
7. The waste gas recycling device of the grain drier as claimed in claims 1 to 5, comprising a drying tower, a hot blast stove, a hot air blower, a hot air channel and a return air channel, and characterized in that: the return air channels can be multiple, are respectively connected with the drying tower through corresponding gas-collecting hoods, and are connected with the separating device after being combined.
8. The grain drier waste gas recycling device of claims 1 to 7, wherein a return air channel is connected with a separating device, and the grain drier waste gas recycling device is characterized in that: and a filter screen and a moisture separator are arranged in the inner cavity of the separation equipment.
9. The waste gas recycling device of the grain dryer according to the claims 2 to 8, wherein the side of the drying tower is provided with a gas collecting hood, characterized in that: and an impurity storage tank is arranged below the gas-collecting hood.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655526 | 2019-09-30 | ||
| CN2019216555268 | 2019-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577309A true CN112577309A (en) | 2021-03-30 |
Family
ID=72893402
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020070968.2U Active CN211782636U (en) | 2019-09-30 | 2020-01-14 | Grain desiccator waste gas recovery utilizes equipment |
| CN202010036111.3A Pending CN112577309A (en) | 2019-09-30 | 2020-01-14 | Grain desiccator waste gas recovery utilizes equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020070968.2U Active CN211782636U (en) | 2019-09-30 | 2020-01-14 | Grain desiccator waste gas recovery utilizes equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN211782636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289799A (en) * | 2022-09-27 | 2022-11-04 | 山东天鹅棉业机械股份有限公司 | Built-in waste heat recycling grain drying tower and technology of gas furnace |
| CN116294538A (en) * | 2023-05-23 | 2023-06-23 | 五洲丰农业科技有限公司 | Intelligent low-energy-consumption control method for fertilizer production by comprehensively utilizing flue gas waste heat |
-
2020
- 2020-01-14 CN CN202020070968.2U patent/CN211782636U/en active Active
- 2020-01-14 CN CN202010036111.3A patent/CN112577309A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289799A (en) * | 2022-09-27 | 2022-11-04 | 山东天鹅棉业机械股份有限公司 | Built-in waste heat recycling grain drying tower and technology of gas furnace |
| CN115289799B (en) * | 2022-09-27 | 2023-01-17 | 山东天鹅棉业机械股份有限公司 | Built-in waste heat recycling grain drying tower and technology of gas furnace |
| CN116294538A (en) * | 2023-05-23 | 2023-06-23 | 五洲丰农业科技有限公司 | Intelligent low-energy-consumption control method for fertilizer production by comprehensively utilizing flue gas waste heat |
| CN116294538B (en) * | 2023-05-23 | 2023-08-22 | 五洲丰农业科技有限公司 | Intelligent low-energy-consumption control method for fertilizer production by comprehensively utilizing flue gas waste heat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN211782636U (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103575077B (en) | A kind of Multi-layer belt type drying system | |
| CN211782636U (en) | Grain desiccator waste gas recovery utilizes equipment | |
| CN107782125B (en) | Self-adaptive and self-adjusting heat pump hot blast stove system | |
| CN201718382U (en) | Equal-pressure grain drying tower | |
| CN206229606U (en) | A kind of classification colouring dry dust removal device for Art Design | |
| US5007180A (en) | Method of and an apparatus for the separation of condensable harmful substances | |
| CN201709305U (en) | Energy-saving grain drying equipment | |
| CN211953463U (en) | High-temperature heat pump grain drying system based on waste heat recovery | |
| CN210945666U (en) | Converter gas dry dedusting recovery system | |
| CN208920091U (en) | A kind of slush moulding exhaust gas heat recovery apparatus | |
| CN101744046A (en) | High humidity grain dryer | |
| CN210036270U (en) | Flue gas recycling and discharging system for air draft drying section and preheating section of chain grate machine | |
| CN208187026U (en) | A kind of sludge dehumidification type multistage recuperation of heat anhydration system | |
| CN101911969B (en) | Isobaric grain-drying tower | |
| CN206408077U (en) | A kind of Treatment of Sludge carbonization system | |
| CN211514021U (en) | Cooling air dehumidification equipment for industrial Maerz kiln | |
| CN211717127U (en) | Waste heat recovery device for grain dryer | |
| CN113375434A (en) | Deep waste heat recovery hot air grain drying system | |
| CN210993637U (en) | Waste gas purification system for upper cover of dry section of pellet drum | |
| CN208223134U (en) | A kind of corn drying machinery heat exchanger | |
| CN206709526U (en) | A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace | |
| CN221036419U (en) | System for utilize vapour waste heat stoving brick material | |
| CN220489796U (en) | Starch evacuation tail gas waste heat utilization device | |
| CN215295619U (en) | Deep waste heat recovery hot air grain drying system | |
| CN204689960U (en) | Gas reuse cooling system in biomass carbonization stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |