CN203676100U - Online cut tobacco expanding and drying device - Google Patents
Online cut tobacco expanding and drying device Download PDFInfo
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- CN203676100U CN203676100U CN201420076527.8U CN201420076527U CN203676100U CN 203676100 U CN203676100 U CN 203676100U CN 201420076527 U CN201420076527 U CN 201420076527U CN 203676100 U CN203676100 U CN 203676100U
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Abstract
The utility model discloses an online cut tobacco expanding and drying device. The upper portion of a drying tower is communicated with a tangential separator through a material conveying pipeline, cut tobacco enters a discharging airlock and is discharged after being separated from overheated steam, the overheated steam circulates and is communicated with a heating furnace through a pipeline and a fan, and the heating furnace is communicated with the bottom of the drying tower through an overheated steam pipe; a feed airlock is communicated with a lower inlet of the drying tower through a flat Venturi tube; the front end of the feed airlock is provided with a heating unit, the overheated steam pipe is communicated with the heating unit through an ejection pipeline, and the portion, at the front end of the heating unit, of the ejection pipeline is provided with an ejection fan; a heat exchanger is arranged in the heating unit and is connected with a temperature sensor at an inlet of the flat Venturi tube to form a control loop; the heating unit is communicated with a jet steam tube, and a flow control valve arranged on the jet steam tube is connected with an oxygen content detector at the inlet of the flat Venturi tube to form a control loop. Through independent control over expanding and drying, filling performance of the cut tobacco is improved.
Description
Technical field:
The utility model relates to a kind of tobacco online expansion and drying device.
Background technology:
Pipe tobacco dry is the critical process in Cigarette processing process, what adopt at present extensively has drum-type cut-tobacco drier, an air current type tobacco shred drying machine, along with the deep propelling of Tar technology, when how improving as much as possible the filling capacity of tobacco, keeping tobacco is crucial in the tobacco aroma loss of dry run.
In recent years, the tobacco business extensive use at home of the online expansion drying equipment of air-flowing type tobacco, typically had tubular type pneumatic conveying dryer, as the HXD of Dickinson-LEGG company, and the HDT of Hauni company; And pipe tower type air flow drying equipment, as the SH9 series air-flowing type tobacco shreds drying machine of domestic Cigarette Machine Company manufacture, and within nearly 2 years, introduce the CTD pipe tobacco pneumatic conveying dryer of COMAS company.
The expansion drying method of pipe tobacco is mainly contained to following several combination: the one, application tunnel type pipe tobacco heats decompressor and drum-type cut-tobacco drier is used in combination; The 2nd, the super damping machine of drum-type and air current type tobacco shred drying machine are used in combination; The 3rd, the expansion cell of pneumatic drier feed zone is to several main expansion drying modes such as pipe tobacco expand.
Patent No. ZL201220179410.3 high-moisture tobacco drying tower, announcement has illustrated a kind of tobacco drying tower that high-moisture tobacco is dry, heat utilization efficiency is high of realizing, comprise the suction Venturi tube of charging vapour lock, vertical ground, and two coaxial inside and outside dryings, this drying system can reduce the temperature of dry gas stream, required dry air temperature only between 160 ℃～220 ℃, have energy-conservation, baking temperature is low, drying efficiency is high, tobacco is made the broken feature such as little.
Patent No. ZL201120213313.7 tobacco shreds drying expansion gear, announcement has illustrated for the drying duct of tubular type pneumatic drier dry expansion device and has adopted around the corner 90 ° of bend pipes, charging aperture adopts and vertically enters heating tube, charging is inhomogeneous, cause the phenomenon of pipe tobacco easy conglomeration in equipment, and taked a kind of arc pipe to connect, charging inclined tube is installed on inlet air pipeline.
Patent No. ZL200910032557.2 tobacco material pneumatic drying process and equipment, announcement has illustrated a kind of air-flow drying method and equipment of realizing the processing of large flow tobacco explosion puffing drying, comprise the tobacco after expanded is transported to drying tube inner drying by hot air flow, then tobacco separates with hot-air; Drying tube is made up of the horizontal drying tube vertical drying tube larger than the cross section of horizontal drying tube with cross section; In horizontal drying tube, sending into airflow direction and material, to send into the vertical temperature of direction be the hot-air that 100 ℃～250 ℃, air velocity are 10m/s～50m/s; Material enters in vertical drying tube and suspends and rises under the drive of hot air flow, and the material rate of climb is reduced to 0.5m/s～5m/s; Density in material can not realize suspension and be separated by selection by winnowing compared with the large more front foreign material that wait under this wind speed simultaneously, this utility model realizes large flow tobacco explosion puffing drying, improve the moisture harmony of discharging, simultaneously in material suspended process, by foreign material selection by winnowing such as the stalk label in tobacco out, further improve the degree of purity of material.
Patent No. ZL200820147872.0 tobacco pneumatic conveying dryer, utility model comprise the drying tube that is placed in the square ring type structure in frame in the mode of vertical setting, heat exchanger, process gas pipeline and blower fan, input and output material gas lock, is characterized in that: described composition drying tube standpipe part by its caliber change from small to big, three sections of reducer pipes from large to small form again.Can make contact area, number of times and time between air-flow and material obviously improve, heat and mass efficiency is improved, and has improved energy-output ratio and pipe tobacco crudy.
Patent No. ZL200820147873.5 pulse airflow drying equipment for tobacco material, utility model has been announced in tobacco explosion puffing drying technique and has been introduced pulsed pneumatic drying technology, on the basis of flash evaporation puffing, utilize pulsed pneumatic drying technology, material is added in drying tube continuously, in the process of carrying at high-speed and high-temperature air-flow, the moisture of material is evaporated, realize large flow tobacco explosion puffing drying, further improve the water uniformity of outlet material simultaneously, finally obtain dried material.
Patent No. ZL200720102128.4 electrical heating tobacco shred fast expansion system, utility model has been announced a kind of point of application heating tobacco shred fast expansion system, comprise charging gas lock, be connected to discharging gas lock by conveyance conduit, cyclone separator, hot air duct connects an electric heater and guarantees heat of mixing air temperature, the equipment complexity that the fuel gas buring stove of avoiding existing pneumatic conveying dryer to use brings, is applicable to the pipe tobacco production application of technical study, test and the small-scale production ability of the dry pipe tobacco of 100kg/h～500kg/h flow expansion.
Patent No. ZL200620128143.1 New air-stream type stalk drying tower, utility model has been announced and has been comprised charging gas lock, connects horizontal feed pipe connect and drying tower by Venturi tube, drying tower is connected with feeder, it is characterized in that, between described charging gas lock and Venturi tube, an expansion chamber is set, horizontal feed pipe connects an independently drying tower, do not need to configure separately warming and humidifying equipment, solve the broken problem of making, for being dried of stem.
Number of patent application 200610048495.0 reduces the method for air flow for drying tobacco leaves scrap temperature, after it is characterized by the super damping machine of cut tobacco on tobacco airflow drying production line, between pneumatic drying of cut tobacco machine, be provided with colleges and universities' heating device, the cut tobacco of sending into by conveying mechanism is carried out after warming and humidifying processing via the super damping machine of cut tobacco, before entering drying machine, sending into high efficient temp .-increasing device further heats and heats, make remain on >=95 ℃ approach and enter pneumatic drying of cut tobacco machine under SARS temperature conditions and carry out reforming processing of cut tobacco, now drying machine work wind-warm syndrome can be by 20 ℃～30 ℃, there is good energy-saving effect, can keep cut tobacco aesthetic quality not reduce, cut tobacco remembers that style and features remains unchanged.
The online expansion drying device of patent No. ZL200720076961.7 cut tobacco, utility model has been announced the online expansion drying device of a kind of cut tobacco, comprise heater, the elementary expanding apparatus being formed by feed hopper, charging gas lock and loosening device, secondary explosion puffing drying device and separator, loosening device wherein adopts injecting type structure.
Patent No. ZL200520023623.7 tobacco pipe tobacco expansion drying device, utility model has been announced a kind of tobacco pipe tobacco expansion drying device, comprise combustion furnace and expansion drying pipeline, Wen's efferent duct, warm-air pipe, the backwind tube of UNICOM with it, the close input termination by expansion drying pipeline of main technique blower fan and loose accelerator, charging gas lock; Its output is connected to cyclone separator and discharging gas lock, and wherein said dry expansion pipeline is between output and the cyclone inlet end of Wen's efferent duct of connecting at charging gas lock, to establish successively respectively row reducer pipe, bottom large radius arc shape runner, vertical pipeline section, top large radius arc runner and horizontal transition pipeline section to be connected and to form along being " Z " font on height.Guarantee that the dry expansion of pipe tobacco, by a longer path, effectively reduces the drop temperature of pipe tobacco, met low temperature and protect fragrant technological requirement, improved the inherent quality of pipe tobacco.
200510031713.5 1 kinds of stream method for drying cut tobacco leaf of cigarette without oxygen of number of patent application, announce a kind of stream method for drying cut tobacco leaf of cigarette without oxygen, to carry out in decompressor, by the high hot-air of 240 ℃～360 ℃ in machine, make the more than 24% moisture in cut tobacco rapid evaporation of water content, thereby pipe tobacco volumetric expansion is increased, it is characterized in that, the hot-air of input swelling agent, oxygen content is less than 2%.Pipe tobacco is after decompressor discharging, selection by winnowing is cooled to after 40 ℃～50 ℃, join mixing, this utility model is separated the oxygen in hot-air Liu of dry pipe tobacco, make the oxygen-free gas of thermal air current in dry pipe tobacco, reduce the unfavorable conversion that aerobic participates in lower pipe tobacco chemical composition, in original dry-basis, have significantly minimizing thereby fragrance matter, perfume quantity in tobacco shreds drying is lost in.
The expanded tower of the novel stem of patent No. ZL02292938.X, comprises expanding apparatus and drying device.Wherein expanding apparatus by heating clamber, be arranged on the charging gas lock on heating clamber and the nozzle and the separator that are contained in steam chest form, nozzle is communicated with heating clamber, and heating clamber is communicated with separator by compressed pipe and convergent divergent channel; Drying device is made up of more than one drying tower and the gas-material separator of loading drying tower discharging place and the discharging gas lock of its underpart; The insulation hopper of separator bottom is connected with turbulent case by tube connector, and the discharging gas lock of Conveyance is housed on tube connector, the air compartment of a termination heat exchanger of turbulent case, and its other end is communicated with the charging aperture of drying tower.
Patent No. ZL02287998.6 improved tobacco pipe tobacco expansion drying device, announce a kind of improved expanding tobacco drying device, the intensification pipeline, the return air duct that comprise combustion furnace, be communicated with combustion furnace, expansion drying pipeline, has input, the output of expansion drying pipeline to be connected to charging gas lock and discharging gas lock.Wherein be provided with in charging gas lock bottom skewed slot and its with loose accelerator connect with Wen and export on pipeline section, and connect and assign radius arc shape and flow to, by vertical pipeline section, upper large radius arc shape runner and horizontal transition pipeline section are connected to separator, discharging gas lock; Between return air duct and intensification pipeline, be provided with interlock air door and stay the ducted vertical pipeline section of expansion drying nozzle is set.There is reduction device height, improve expansion effect, reach pipe tobacco and make broken littlely, and can remove tobacco blue foreign smell taste, keep and the feature of performance aroma of tobacco shreds.
Patent No. ZL01217209.X cut tobacco high speed swelling drier, comprises that burner and blending bin form heater, and feed hopper, charging gas lock and loosening device form elementary expanding apparatus; Be in the turbulated tube of threeway tubulose and have two groups of blades that rotation direction is contrary and be located at two sides that are connected with loosening device, the inlet side of turbulated tube and go out end and is communicated with blending bin and tower body bottom respectively, turbulated tube and tower body formation explosion puffing drying device; The discharging opening of tower body bottom has the separator of discharging gas lock to be communicated with by a tube connector and bottom, and separator, blower fan, backwind tube and blast pipe form heated air circulation device; Heater, elementary expanding apparatus, explosion puffing drying device and separator present and are horizontally disposed with.
Patent No. ZL00267354.1 tower tube type machine for roasting cut tobacco, include gas lock bottom one steam separator is set, be communicated with feed pipe and be connected in steam device, be connected to Conveyance device at the discharge end of the transitional pipe segment of steam device, humidity discharging discharge pipe is installed and is connected with moisture-eliminating blower by its air outlet.
In recent years along with the deepening continuously of the technology research of becoming more meticulous, process gas flow temperature, oxygen content and tobacco over dry mass flow-rate and process gas flow ratio, have influence on filling capacity, the tobacco inherence organoleptic quality of tobacco.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of tobacco online expansion and drying device, can effectively improve control range and the control accuracy of equipment, strengthen the controllable property of technical process, by expanding and dry independent control, and by improving gas temperature, the reduction oxygen content gas of expansion cell, be conducive to improve on the one hand the filling capacity of pipe tobacco, reduce on the other hand the gas temperature of drying tower inner drying, kept and brought into play the online expansion object of aroma of tobacco shreds.
The utility model technical solution problem adopts following technical scheme:
A kind of tobacco online expansion and drying device, comprise drying unit and expansion cell;
The drying tower top of described drying unit is communicated with tangential separator through mass transport pipeline, pipe tobacco enters discharging gas lock after separating with superheated steam, the isolated superheated steam in described discharging gas lock upper end is communicated with heating furnace through pipeline, blower fan, and described heating furnace is communicated with described drying tower bottom by overheated steam pipe;
The charging gas lock of described expansion cell is communicated with described drying tower bottom entrance through flat Venturi tube;
Front end at described charging gas lock is provided with heating unit, and described overheated steam pipe is communicated with described heating unit through injection pipeline, and is provided with draught fan on the injection pipeline of described heating unit front end;
In described heating unit, be provided with heat exchanger, the temperature sensor at described heat exchanger and described flat venturi inlet place connects and composes control loop;
On described heating unit, be communicated with uperize pipe, the oxygen content testing instrument at the flow control valve arranging on described uperize pipe and flat venturi inlet place connects and composes control loop.
Described heat exchanger adopts electrical heating, Steam Heating or burner heating.
Adopt the utility model device to carry out tobacco online expansion and dry method, step comprises: pipe tobacco is sent in online expansion cell and drying tower dry by described charging gas lock 6, it is 11～15% that the tobacco expanding that is 18～25% by moisture content by superheated steam is dried to moisture content, enter and in tangential separator 2, carry out superheated steam and separate with tobacco, the pipe tobacco of separation is by discharging in discharging gas lock 3; The superheated steam separating is pumped into the interior heating of heating furnace 4 by blower fan through pipeline, superheated steam after intensification is assigned with and enters in described drying tower 1 and described heating unit 8, and the pipe tobacco of again described charging gas lock 6 being sent into is conveyed into dry formation in online expansion cell and drying tower and circulates.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model can effectively improve control range and the control accuracy of equipment, strengthens the controllable property of technical process, is conducive to the Precise control of the process of pipe tobacco.
2, core of the present utility model is that tobacco expanding and tobacco shreds drying independently control, can by improve expansion cell superheat steam temperature, reduce its superheated steam oxygen content, be conducive to improve the filling capacity of pipe tobacco, reduce on the other hand the superheat steam temperature of drying tower inner drying, kept and brought into play the online expansion object of aroma of tobacco shreds.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 drying tower, 2 tangential separators, 3 discharging gas locks, 4 heating furnaces, 5 overheated steam pipes, 6 charging gas locks, 7 flat Venturi tubes, 8 heating units, 9 injection pipelines, 10 draught fans, 11 heat exchangers, 12 uperize pipes, 13 flow control valves, 14 oxygen content testing instruments, 15 blower fans, 16 temperature sensors.
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The specific embodiment:
Embodiment: tobacco online expansion and drying device, its hardware configuration as shown in Figure 1, comprises drying unit and expansion cell; Drying tower 1 top of drying unit is communicated with tangential separator 2 through mass transport pipeline, pipe tobacco enters discharging gas lock 3 after separating with superheated steam, the discharging gas lock 3 isolated superheated steams in upper end are communicated with heating furnace 4 through pipeline, blower fan 15, and heating furnace is communicated with drying tower 1 bottom by overheated steam pipe 5;
The charging gas lock 6 of expansion cell is communicated with drying tower bottom entrance through flat Venturi tube 7;
Be provided with heating unit 8 at the front end of charging gas lock 6, overheated steam pipe 5 is communicated with heating unit 8 through injection pipeline 9, and is provided with draught fan 10 on the injection pipeline of heating unit front end;
In heating unit 8, be provided with heat exchanger 11, this heat exchanger 11 connects and composes control loop with the temperature sensor 16 at flat venturi inlet place;
On heating unit 8, be communicated with uperize pipe 12, the flow control valve 13 arranging on uperize pipe 12 connects and composes control loop with the oxygen content testing instrument 14 at flat venturi inlet place.
In specifically arranging, heat exchanger 11 adopts electrical heating, Steam Heating or burner heating.
In work, superheated steam is inputted by the pipeline on blower fan 15 tops, introduce heating in heating furnace 4 through blower fan 15, enter afterwards overheated steam pipe 5, a superheated steam part is assigned with and enters in drying tower 1, a part is sent into expansion cell through injection pipeline 9 by draught fan 10, can on the basis of original temperature, increase 5-50 ℃ to superheated steam by heat exchanger 11, and the signal that the amplitude heating is fed back according to the temperature sensor 16 at flat venturi inlet place regulates as required.For the adjusting of oxygen content, according to oxygen content testing instrument 14 feedacks at flat venturi inlet place, adjust the aperture of flow control valve 13, adjust uperize pipe 12 and inject the quantity of steam in expansion cell, and then adjust the oxygen content of process gas in expansion cell.The steam injection amount of uperize pipe 12 is controlled at 0-200kg/h, and oxygen content is controlled at below 6%.In expansion cell, gas flow carries out independent control by draught fan 10 work drive motor frequencies.
Shown in Fig. 1, the outlet of heating furnace 4 is provided with temperature sensor and oxygen content testing instrument equally, wherein, the gas valve of temperature sensor and heating furnace forms control loop, enter gas quantity in heating furnace 4 and control the temperature of superheated steam by control, the superheated steam of oxygen content testing instrument and blower fan 15 front ends carries valve to form control loop, and the input quantity of superheated steam increases the oxygen content that can improve dry gas.
Adopt equipment of the present utility model, in work, pipe tobacco (stem and cut tobacco) is fed in line expansion and drying equipment by charging gas lock, and high-moisture percentage (18～25%) tobacco is inflated and is dried to suitable moisture content (11～15%), and by discharging in discharging gas lock.The utility model equipment can be accomplished: in drying unit, the gas temperature for dry and feeding tobacco-thread of 80% superheated steam and air composition is controlled between 140 ℃ to 300 ℃, its oxygen content gas is independent controlled between 1% to 6%, in expansion cell, for expanding and carrying gas temperature that tobacco enters drying tower between 140 ℃ to 300 ℃, oxygen content gas independence between 1% to 4% is controlled.
Claims (2)
1. tobacco online expansion and a drying device, comprises drying unit and expansion cell;
Drying tower (1) top of described drying unit is communicated with tangential separator (2) through mass transport pipeline, pipe tobacco enters discharging gas lock (3) after separating with superheated steam, the isolated superheated steam in described discharging gas lock (3) upper end is communicated with heating furnace (4) through pipeline, blower fan, and described heating furnace is communicated with described drying tower (1) bottom by overheated steam pipe (5);
The charging gas lock (6) of described expansion cell is communicated with described drying tower bottom entrance through flat Venturi tube (7);
It is characterized in that, be provided with heating unit (8) at the front end of described charging gas lock (6), described overheated steam pipe (5) is communicated with described heating unit (8) through injection pipeline (9), and is provided with draught fan (10) on the injection pipeline of described heating unit front end;
In described heating unit (8), be provided with heat exchanger (11), described heat exchanger (11) connects and composes control loop with the temperature sensor (16) at described flat venturi inlet place;
On described heating unit (8), be communicated with uperize pipe (12), the upper flow control valve (13) arranging of described uperize pipe (12) connects and composes control loop with the oxygen content testing instrument (14) at flat venturi inlet place.
2. a kind of tobacco online expansion according to claim 1 and drying device, is characterized in that, described heat exchanger (11) adopts electrical heating, Steam Heating or burner heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076527.8U CN203676100U (en) | 2014-02-21 | 2014-02-21 | Online cut tobacco expanding and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076527.8U CN203676100U (en) | 2014-02-21 | 2014-02-21 | Online cut tobacco expanding and drying device |
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| Publication Number | Publication Date |
|---|---|
| CN203676100U true CN203676100U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420076527.8U Withdrawn - After Issue CN203676100U (en) | 2014-02-21 | 2014-02-21 | Online cut tobacco expanding and drying device |
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| Country | Link |
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| CN (1) | CN203676100U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767056A (en) * | 2014-02-21 | 2014-05-07 | 安徽中烟工业有限责任公司 | Online expanding and drying device of cut tobacco |
| WO2016181180A1 (en) * | 2015-05-08 | 2016-11-17 | Comas - Costruzioni Macchine Speciali - S.P.A. | An improved method for expanding and drying of tobacco and plant for its implementation |
| 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 |
-
2014
- 2014-02-21 CN CN201420076527.8U patent/CN203676100U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767056A (en) * | 2014-02-21 | 2014-05-07 | 安徽中烟工业有限责任公司 | Online expanding and drying device of cut tobacco |
| CN103767056B (en) * | 2014-02-21 | 2015-07-15 | 安徽中烟工业有限责任公司 | Online expanding and drying device of cut tobacco |
| WO2016181180A1 (en) * | 2015-05-08 | 2016-11-17 | Comas - Costruzioni Macchine Speciali - S.P.A. | An improved method for expanding and drying of tobacco and plant for its implementation |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20150715 |
|
| RGAV | Abandon patent right to avoid regrant |