CN102132950A - Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device - Google Patents
Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device Download PDFInfo
- Publication number
- CN102132950A CN102132950A CN 201110006916 CN201110006916A CN102132950A CN 102132950 A CN102132950 A CN 102132950A CN 201110006916 CN201110006916 CN 201110006916 CN 201110006916 A CN201110006916 A CN 201110006916A CN 102132950 A CN102132950 A CN 102132950A
- Authority
- CN
- China
- Prior art keywords
- drying
- tobacco
- waste gas
- heating device
- flow heating
- 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
Landscapes
- Drying Of Solid Materials (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention relates to a process method for utilizing waste heat in tobacco shred airflow drying and a special flow heating device. The process method is characterized in that wet and hot process waste gas with higher enthalpy which is exhausted by an tobacco shred airflow drying and damp-removing system is used for carrying out temperature raising treatment on tobacco shreds at an airflow drying inlet by means of a flow heating device so as to improve the temperature and the looseness of the tobacco sheds at the inlet. The flow heating device comprises a temperature raising cavity in which a tobacco shed feeding mechanism travels; the temperature raising cavity comprises a bottom plate and an upper cover; a plurality of micropore nozzles are uniformly distributed on the bottom plate; and the top end of the upper cover is provided with a waste gas outlet. By using the process method disclosed by the invention, the process waste gas exhausted in the airflow drying process can be directly used for preheating the tobacco shreds at the inlet, thereby improving the temperature of the tobacco shreds entering a drying pipe, and reducing temperature difference in the drying process and further lowering energy consumption in the drying process. Simultaneously, since the tobacco shreds are heated in the flow heating device, the looseness of the tobacco shreds is further improved, and the uniformity of water content ratio and the expanding effect of the dried tobacco shreds are further improved.
Description
Technical field
The present invention relates to the tobacco process technology, is a kind of process and dedicated stream thermic devices of pneumatic drying of cut tobacco UTILIZATION OF VESIDUAL HEAT IN specifically.
Background technology
The pneumatic drying of cut tobacco technology has weak point drying time, responds soon, improves advantages such as bigger in linear expansivity height, leaf silk filling value, and cigarette factory is used widely at home at present.The course of work of pneumatic conveying drying is to adopt an indirect heating type fuel heater to provide heat to process gas, moisture content is that 22%～35% leaf silk is fed by charging gas lock and Venturi tube, process gas carries out drying to the leaf silk in drying tube, and carries out gas solid separation through cyclone separator.Process gas after the separation by snail die cavity and helix tube leave from the cyclone separator top get back to the main technology blower fan that is contained in lower (Jiang Kai two, understand the online bloating plant of leaf silk---HXD, tobacco machine scientific seminar collection of thesis in 2004,360-364).Process gas is by behind the blower fan, be divided into two parts, a part of Returning heat-exchanger reheats and is warming up to required technological temperature and recycles, and another part discharges directly as technology waste gas that (water capacity is big, can't directly recycle), the technology waste gas exhaust air rate is at 8400-13000m usually
3/ h, temperature is at 140-150 ℃, directly discharges and the heat that loses is very considerable, caused certain energy waste.Pneumatic conveying drying needs to consume a large amount of hot-air, steam and electric energy on the one hand as the high energy consumption link in the tobacco processing course, and the in line of technology waste gas takes away a large amount of waste heats again and environment is produced certain influence on the other hand.
Patent---the method (publication number CN 1903086A) that reduces the air flow for drying tobacco leaves scrap temperature discloses a kind of by the method that a heating device reduces the air flow for drying tobacco leaves scrap temperature is set before pneumatic conveying drying, but the thermal source of the described heating device of this method need be supplied with by the power center (PC), needs to consume certain steam or electric energy.
Patent---a kind of method (publication number: CN 101731731A) disclose a kind of method of utilizing pneumatic conveying drying waste heat warm-up combustion-supporting air that reduces energy consumption for pneumatic drying of cut tobacco, but because the required combustion-supporting air quantity of combustion furnace is less, the utilization rate of waste heat of this method is lower.
Summary of the invention
The objective of the invention is the technology waste gas of pneumatic conveying drying system discharging is directly utilized again, thereby effectively reduce energy consumption for pneumatic drying.
The objective of the invention is to be achieved through the following technical solutions: a kind of process of pneumatic drying of cut tobacco UTILIZATION OF VESIDUAL HEAT IN, utilize the higher damp and hot technology waste gas of heat enthalpy value of pneumatic drying of cut tobacco humidity discharging system discharging pneumatic conveying drying inlet leaf silk to be heated processing, improve inlet pipe tobacco temperature and shatter value by first-class thermic devices.
Described stream thermic devices comprises that can make the cavity that heats that the pipe tobacco feeding mechanism walks, and this heats cavity and comprises that base plate and loam cake constitute, and is evenly equipped with a plurality of micropore nozzles that are communicated with the technology waste gas pipe on base plate, and the loam cake top is provided with waste gas outlet.
Concrete scheme of the present invention is: one " stream thermic devices " is set before the pneumatic conveying drying system entry shakes groove, pneumatic conveying drying system process waste gas is incorporated into this " stream thermic devices ", as thermal source inlet leaf silk is heated processing, improve inlet leaf silk temperature and loosening ratio, reduce the dry run energy consumption, improve the expansion effect of leaf silk simultaneously." stream thermic devices " can effectively pass to the leaf silk with the heat of technology waste gas, and then improves the intensification effect of being heated.Compared to existing technology, method provided by the invention can directly be carried out preheating with the technology waste gas that discharges in the pneumatic conveying drying process to inlet leaf silk, improves the leaf silk temperature that enters drying tube, has reduced the dry run temperature difference, thereby has reduced the dry run energy consumption.Simultaneously be heated in " stream thermic devices " its laxity that heats up of leaf silk further improves, and can make that the uniformity and the expansion effect of moisture content makes moderate progress after the leaf silk drying.Through measuring and calculating, when identical initial moisture content was dry, the dry run wind-warm syndrome generally can be fallen 20-30 ℃ to the present invention program compared to existing technology, comprehensive energy efficient 10-15%.
Description of drawings
Fig. 1 is the schematic diagram of the inventive method.
Fig. 2 is a concrete equipment connection diagram of the present invention.
Fig. 3 is the structural representation of stream thermic devices.
Among Fig. 2: 1 stream thermic devices, 2 charging apertures, 3 drying tubes, 4 discharging openings, 5 cyclone separators, 6 return air ducts, 7 process cycles blower fans, 8 recirculating process gases, 9 technology waste gas, 10 volume dampers, 11 process gas heat exchangers, 12 high-temperature flue gas, 13 combustion furnaces, 14 process gas.
Among Fig. 3: 1-1 heats cavity, 1-2 base plate, 1-3 loam cake, 1-4 leaf silk feeding mechanism, 1-5 waste gas outlet, 1-6 industrial waste gas inlet, 1-7 micropore nozzle.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing (embodiment):
As shown in Figure 2: describe at the embodiment that is applied as of HXD pneumatic drying of cut tobacco system with the present invention.The method of the pneumatic drying of cut tobacco technology waste gas UTILIZATION OF VESIDUAL HEAT IN of present embodiment is before existing HXD pneumatic conveying drying inlet shakes groove first-class thermic devices to be set, 150 ℃ of left and right sides technology waste gas of discharging with pneumatic drier humidity discharging air door are thermal source, inlet leaf silk further heated heat, make leaf silk (about 95 ℃) under enter the pneumatic drying of cut tobacco machine and carry out drying processing near the boiling temperature condition.
The operation principle of described stream thermic devices 1 is as follows:
The leaf silk is sent into by feed system and is heated cavity, and moving and travel forward by the conveying troughed belt that shakes, the base plate of cavity is provided with some micropore nozzles, and 150 ℃ of left and right sides technology waste gas are by the ejection of the nozzle on the base plate, fully contacts with the leaf silk to make leaf silk temperature raise.Passing the technology waste gas of Ye Sihou is discharged by the cavity top.The technology waste gas emitted dose is adjustable.
Embodiment:
As shown in Figure 1, 2, the method of present embodiment UTILIZATION OF VESIDUAL HEAT IN is to be provided with first-class thermic devices 1 before existing pneumatic drying of cut tobacco machine inlet capable 2, Ye Sizai being entered send into before the drying tube 3 stream thermic devices 1 to utilize waste heat further to heat heats, makes the leaf silk enter pneumatic drying of cut tobacco machine 3 under 95 ℃ of conditions and carry out drying processing.As shown in Figure 3, dry air-flow process waste gas 4 is entered by stream thermic devices 1 bottom as thermal source, and inlet leaf silk 2 is heated, and the residue technology waste gas is discharged by stream thermic devices 1 top, and the technology waste gas emitted dose is regulated by volume damper 10.
Claims (2)
1. the process of a pneumatic drying of cut tobacco UTILIZATION OF VESIDUAL HEAT IN, it is characterized in that: utilize the higher damp and hot technology waste gas of heat enthalpy value of pneumatic drying of cut tobacco humidity discharging system discharging pneumatic conveying drying inlet leaf silk to be heated processing, improve inlet pipe tobacco temperature and shatter value by first-class thermic devices.
2. the dedicated stream thermic devices of the described pneumatic drying of cut tobacco UTILIZATION OF VESIDUAL HEAT IN of claim 1, it is characterized in that: this stream thermic devices 1 comprise one can make that pipe tobacco feeding mechanism (1-4) walks heat cavity (1-1), this heats cavity (1-1) and comprises that base plate (1-2) and loam cake (1-3) constitute, be evenly equipped with a plurality of micropore nozzle (1-7) on base plate, the loam cake top is provided with waste gas outlet (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110006916 CN102132950A (en) | 2011-01-13 | 2011-01-13 | Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110006916 CN102132950A (en) | 2011-01-13 | 2011-01-13 | Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102132950A true CN102132950A (en) | 2011-07-27 |
Family
ID=44293003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110006916 Pending CN102132950A (en) | 2011-01-13 | 2011-01-13 | Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102132950A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103211283A (en) * | 2012-01-23 | 2013-07-24 | 豪尼机械制造股份公司 | Flow dryer and flow drying method for drying a tobacco material |
| CN104720094A (en) * | 2014-02-21 | 2015-06-24 | 安徽中烟工业有限责任公司 | Method for adopting tobacco on-line expansion and drying device to conduct tobacco on-line expansion and drying |
| CN106839753A (en) * | 2016-12-30 | 2017-06-13 | 山东中烟工业有限责任公司 | A kind of guide cover structure that gas lock is fed suitable for pneumatic convey drier |
| CN108851171A (en) * | 2018-08-17 | 2018-11-23 | 红塔烟草(集团)有限责任公司 | A kind of blade redrying system and its control method with waste gas circulation function |
| CN109965334A (en) * | 2017-12-28 | 2019-07-05 | 红塔烟草(集团)有限责任公司 | A kind of roasting piece machine entrance temperature of charge safeguards system and method |
| CN110608598A (en) * | 2019-08-30 | 2019-12-24 | 山东省农业机械科学研究院 | Corn ear grain linkage drying production line |
| CN111528510A (en) * | 2020-05-11 | 2020-08-14 | 厦门烟草工业有限责任公司 | Method for drying tobacco shreds, tobacco products and application |
| CN111678307A (en) * | 2020-06-28 | 2020-09-18 | 李珊珊 | Drying box for uniformly heating tobacco shreds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1450122A1 (en) * | 2001-11-26 | 2004-08-25 | Japan Tobacco Inc. | Air flow dryer for granular material |
| CN1554293A (en) * | 2003-12-29 | 2004-12-15 | 江苏智思机械制造有限公司 | New Process for producing tobacco shred |
| CN1903086A (en) * | 2006-08-01 | 2007-01-31 | 中国烟草总公司郑州烟草研究院 | Method for lowering temp. of air flow for drying tobacco leaves scrap |
| CN101324396A (en) * | 2007-05-30 | 2008-12-17 | 国际烟草机械波兰私人控股有限责任公司 | Method of increasing the efficiency of drier, particularly a stream drier |
| CN101731731A (en) * | 2009-11-10 | 2010-06-16 | 中国烟草总公司郑州烟草研究院 | Method for reducing energy consumption for pneumatic drying of cut tobacco |
-
2011
- 2011-01-13 CN CN 201110006916 patent/CN102132950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1450122A1 (en) * | 2001-11-26 | 2004-08-25 | Japan Tobacco Inc. | Air flow dryer for granular material |
| CN1554293A (en) * | 2003-12-29 | 2004-12-15 | 江苏智思机械制造有限公司 | New Process for producing tobacco shred |
| CN1903086A (en) * | 2006-08-01 | 2007-01-31 | 中国烟草总公司郑州烟草研究院 | Method for lowering temp. of air flow for drying tobacco leaves scrap |
| CN101324396A (en) * | 2007-05-30 | 2008-12-17 | 国际烟草机械波兰私人控股有限责任公司 | Method of increasing the efficiency of drier, particularly a stream drier |
| CN101731731A (en) * | 2009-11-10 | 2010-06-16 | 中国烟草总公司郑州烟草研究院 | Method for reducing energy consumption for pneumatic drying of cut tobacco |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103211283A (en) * | 2012-01-23 | 2013-07-24 | 豪尼机械制造股份公司 | Flow dryer and flow drying method for drying a tobacco material |
| CN103211283B (en) * | 2012-01-23 | 2016-12-28 | 虹霓机械制造有限公司 | For the wind drift drying machine that tobacco-containing material is dried and wind drift drying means |
| CN104720094A (en) * | 2014-02-21 | 2015-06-24 | 安徽中烟工业有限责任公司 | Method for adopting tobacco on-line expansion and drying device to conduct tobacco on-line expansion and drying |
| CN104720094B (en) * | 2014-02-21 | 2016-02-24 | 安徽中烟工业有限责任公司 | A kind of tobacco online expansion and drying device of adopting carries out tobacco online expansion and dry method |
| CN106839753A (en) * | 2016-12-30 | 2017-06-13 | 山东中烟工业有限责任公司 | A kind of guide cover structure that gas lock is fed suitable for pneumatic convey drier |
| CN109965334A (en) * | 2017-12-28 | 2019-07-05 | 红塔烟草(集团)有限责任公司 | A kind of roasting piece machine entrance temperature of charge safeguards system and method |
| CN109965334B (en) * | 2017-12-28 | 2023-09-15 | 红塔烟草(集团)有限责任公司 | System and method for guaranteeing inlet material temperature of sheet baking machine |
| CN108851171A (en) * | 2018-08-17 | 2018-11-23 | 红塔烟草(集团)有限责任公司 | A kind of blade redrying system and its control method with waste gas circulation function |
| CN110608598A (en) * | 2019-08-30 | 2019-12-24 | 山东省农业机械科学研究院 | Corn ear grain linkage drying production line |
| CN111528510A (en) * | 2020-05-11 | 2020-08-14 | 厦门烟草工业有限责任公司 | Method for drying tobacco shreds, tobacco products and application |
| CN111678307A (en) * | 2020-06-28 | 2020-09-18 | 李珊珊 | Drying box for uniformly heating tobacco shreds |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102132950A (en) | Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device | |
| CN103575068A (en) | Lignite drying water recycling and drying tail gas recycling system | |
| CN201974013U (en) | PET (Polyethylene Terephthalate) bottle-flake hot-air circulating and continuous-drying system | |
| CN103115478A (en) | Drying equipment | |
| CN206695531U (en) | A kind of drying system for gypsum production line | |
| CN101946968A (en) | Multifunctional dryer | |
| CN103333703B (en) | Drying or low-temperature destructive distillation method and device of brown coal or low-deterioration long flame coal | |
| CN205002561U (en) | Energy -conserving drying equipment of air current | |
| CN107120947A (en) | Hot air superheated steam drying system | |
| CN203771906U (en) | Device for drying ammonium sulfate by recycling flue gas generated from crude benzene production | |
| CN201781944U (en) | Multi-functional dryer | |
| CN104140837A (en) | Thermal conduction molded coal moisturizing method with coke oven tail gas as carrying gas, and apparatus thereof | |
| CN103288328B (en) | Method and equipment for drying and incinerating PTA (purified terephthalic acid) activated sludge | |
| CN204678861U (en) | Be applicable to single blower fan circulatory afterheat recycling device of small-size grain drying machinery | |
| CN209197402U (en) | A kind of Novel tunnel-type drying oven | |
| CN102273719A (en) | Thin-layer quick combination heating vegetable dehydrating process and equipment | |
| CN205313487U (en) | Biomass solidified fuel production line | |
| CN202166290U (en) | Airflow type plant drying machine | |
| CN104154554B (en) | A kind of fine cleaned coal dehumidification system dust disposal technique | |
| CN207299746U (en) | A kind of automatic hydrofuge circulating air Drying tunnel of electrical heating | |
| CN102353693A (en) | Experimental installation for drying characteristic of upgrading low rank coal | |
| CN206398732U (en) | A kind of chemical industry formaldehyde, wood industry comprehensive utilization of energy equipment | |
| CN106979696B (en) | A kind of afterheat utilizing system producing electroceramics shuttle kiln | |
| CN205373345U (en) | Dry material machine with from cooling system | |
| CN203971682U (en) | The hot flue gas processing device of a kind of fine cleaned coal drying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110727 |