CN201219480Y - Pulse airflow drying equipment for tobacco material - Google Patents
Pulse airflow drying equipment for tobacco material Download PDFInfo
- Publication number
- CN201219480Y CN201219480Y CNU2008201478735U CN200820147873U CN201219480Y CN 201219480 Y CN201219480 Y CN 201219480Y CN U2008201478735 U CNU2008201478735 U CN U2008201478735U CN 200820147873 U CN200820147873 U CN 200820147873U CN 201219480 Y CN201219480 Y CN 201219480Y
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- drying
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- tube
- tobacco
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Abstract
The utility model relates to a tobacco material pulse pneumatic conveying dryer which comprises a delivery drying pipe, wherein one end of the delivery drying pipe is provided with an air inlet (1) and an inlet valve (2), and the other end of the delivery drying pipe is communicated with the upper part of the inner cavity of a drying tower (7) with a back taper structure. The delivery drying pipe comprises a feed pipe (4), a discharge pipe (6) and an expansion chamber (5) which is vertically arranged between the feed pipe and the discharge pipe and has a pipe cavity with a Venturi tube-type structure, wherein the expansion chamber is a back taper cavity body gradually reducing from the feed end to the discharge end; the discharge pipe (6) communicated with the discharge end at the bottom part of the expansion cavity is communicated with a feed hole arranged at the upper end of the drying tower (7) by a bottom-to-top bending way; the feed pipe (4) communicated with the feed end at the bottom part of the expansion chamber is arranged by a top-to-bottom bending way, and the feed end is respectively connected with an air supply and a material supply through the air inlet (1) and the inlet valve (2).
Description
Technical field
The utility model belongs to technical field of tobacco processing, relates to a kind of tobacco pulsed pneumatic drying equipment that utilizes air pulse tobacco to be carried out expansion drying specifically.
Background technology
At present, the stem explosion puffing drying pattern that generally adopts of domestic tobacco processing industry mainly contains: 1, HT adds baking stem tube; 2, the expanded tower of COMAS stem; 3, the expanded tower of flash distillation grafting stem; 4, flash distillation adds fluid bed; 5, HT adds fluid bed; 6, the COMAS tunnel type dries by the fire several modes such as stalk machine.The common drawback of these patterns is exactly to be that the moisture of cut stem of equipment outlet section is harmonious poor, and simultaneously, moisture harmony index has limited the punishment in advance cross section again and can not enlarge arbitrarily, and then has limited the raising of production capacity.Present several stem explosion puffing drying patterns, its maximum productivity can only reach 2000Kg/h, and therefore large-scale at home cigarette factory has applied significant limitation.
Patent 200620128143.1 discloses a kind of air-flow stem drying tower, substantially be the reduced form of the expanded tower of flash distillation grafting stem, because of pneumatic conveying drying responsive especially to charging, stem directly enters drying tower by Venturi tube, charging is difficult to realize flow equalization, and its dry route is shorter, be difficult to realize the efficient drying of material and discharging moisture evenly.
Patent 03221595.9 has been announced a kind of fluidized drying machine that is used for the stem drying, by transformation to traditional fluid bed inside, improved the harmony of stem moisture content of outlet, but because the width of bed body and stem are difficult to realize big flow stem drying by the restriction that is subjected to the pneumatic conveying drying characteristics of the thickness of feed layer of bed surface.
Summary of the invention
The purpose of technical solutions of the utility model is to overcome existing weak point in the above-mentioned prior art and a kind of tobacco pulsed pneumatic drying equipment is provided.
Equipment of the present utility model is the pulsed pneumatic drying technology of introducing in tobacco explosion puffing drying technology, on the expanded basis of flash distillation, utilize the pulsed pneumatic drying technology, add material in the drying tube continuously, in the process that the high-speed and high-temperature air-flow is carried, make the moisture of material obtain evaporation, realize big flow tobacco explosion puffing drying, can further improve simultaneously the water uniformity of outlet material, finally obtain dried material.
The purpose of this utility model can realize by following technique measures:
Tobacco pulsed pneumatic drying equipment of the present utility model comprises that an end is provided with the defeated material drying tube that air inlet and inlet valve, the other end are connected with the inner chamber top of the drying tower of inverted cone-shaped structure, and described defeated material drying tube comprises that the tube chamber of feed pipe, discharge nozzle and the vertical setting between feed and exhaust tube is Venturi tube-type spreader expansion of structure chamber three parts; Wherein, the back taper cavity of described expansion chamber for restraining gradually to discharge end by feed end; The discharge nozzle that is connected with the discharge end of expansion chamber bottom is connected with the charging aperture that is arranged on drying tower top in the mode of bending from bottom to top; The feed pipe that is connected with the feed end on expansion chamber top is provided with in the mode of bending from top to bottom, and its feed end links to each other with the material source with source of the gas respectively with inlet valve by air inlet.
The top of drying tower described in the utility model is provided with changes net and gas outlet, and its bottom is provided with discharging gas lock and discharging opening.
The operation principle of the utility model equipment is as follows:
The utility model is to make the form (promptly adopting the defeated material drying tube of Venturi tube structure) that alternately enlarges and dwindle by the caliber that will fail the material drying tube, tobacco constantly is accelerated in the process that drying tube is carried and slows down, gas-solid mixture is in drying tube in the swiftly flowing process, the moisture rapid evaporation of material, material is by explosion puffing drying.Its concrete processing step is as follows:
(1) enters inlet valve by the groove that shakes by charging aperture through the expanded tobacco of flash distillation, fall into the less relatively feed pipe of caliber then;
(2) high velocity air is blown into feed pipe by air inlet, and material is quickened;
(3) when the material of accelerated motion in the moment that enters expansion chamber because the sudden enlargement of caliber descends air velocity suddenly, and material is because inertia enters expansion chamber;
(4) tobacco is in the effect of back taper cavity reducing resistance and constantly be decelerated, and equals or during near the material sinking speed, because of dwindling suddenly of caliber, material is accelerated again until gas-solid two alternate relative velocities;
(5) so repeatedly, material always is in is accelerated or deceleration regime, strengthened heat and mass transfer process, improved the drying capacity of equipment and strengthened the expansion effect of material, simultaneously the length of drying tube is shortened;
(6) thermal current is discharged by the gas outlet by changeing net in drying tower, and a part of moisture enters atmosphere, and most of thermal current is got back to and reentered air inlet after hot-blast stove or other heaters are heated;
(7) dried tobacco is exported by discharging opening by the discharging gas lock.
The beneficial effects of the utility model are as follows:
But heat and mass transfer enhancement process not only compared to existing technology, have the drying efficiency height, floor space is little, unit volume production capacity is big, be easy to characteristics such as control automatically, also move with material owing to air pulse, contact area is increased greatly, and it is more even that material is heated, and therefore strengthened dry run, not only heat and mass efficient height, energy consumption are little, and make that the goods crudy is more even.
In addition, the tobacco pulsed pneumatic drying also possesses following beneficial effect:
1, helps eliminating the assorted gas such as xylon gas, blue foreign smell of tobacco;
2, tobacco high-speed motion in drying tube has certain expansion effect, and through the multiple pulses effect, expansion effect further strengthens;
3, tobacco is difficult for oxidizing brown stain in the closed environment drying, and material is soft to curl, and has excellent compatibility;
4, thermal current recycles, and helps energy savings.
Tobacco described in the utility model comprises pipe tobacco, leaf silk, stem, smoked sheet etc.
Description of drawings
Fig. 1 is the structural representation of the utility model equipment.
Sequence number among Fig. 1: 1, air inlet, 2, inlet valve, 3, charging aperture, 4, feed pipe, 5, expansion chamber, 6, discharge nozzle, 7, drying tower, 8, change net, 9, the gas outlet, 10, the discharging gas lock, 11, discharging opening.
The specific embodiment
The utility model is further described below with reference to embodiment (accompanying drawing):
Tobacco pulsed pneumatic drying equipment of the present utility model comprises that an end is provided with the defeated material drying tube that air inlet 1 and inlet valve 2, the other end are connected with the inner chamber top of the drying tower 7 of inverted cone-shaped structure, and described defeated material drying tube comprises that the tube chamber of feed pipe 4, discharge nozzle 6 and the vertical setting between feed and exhaust tube is Venturi tube-type spreader expansion of structure chamber 5 three parts; Wherein, the back taper cavity of described expansion chamber for restraining gradually to discharge end by feed end; The discharge nozzle 6 that is connected with the discharge end of expansion chamber bottom is connected with the charging aperture that is arranged on drying tower 7 tops in the mode of bending from bottom to top; The feed pipe 4 that is connected with the feed end on expansion chamber top is provided with in the mode of bending from top to bottom, and the feed end of feed pipe 4 links to each other with the material source by air inlet 1 links to each other, passes through inlet valve 2 with source of the gas charging aperture 3; The top of described drying tower 7 is provided with changes net 8 and gas outlet 9, and its bottom is provided with discharging gas lock 10 and discharging opening 11.
In the utility model, the expanded preliminary treatment of tobacco can be finished by flash distillation or other bulking equipments; Tobacco inlet moisture is controlled at 18%-38%, and defeated material drying tube is by inlet valve 2 control and air insulated; Air velocity is between 4m/s-40m/s, and favor speed is 5m/s-25m/s.The tobacco moisture content of outlet is 8%-13%, defeated material drying tube is isolated by bleeder valve 10 and air, and the drying time of tobacco in drying tube is 0.5-20s, and the preferred time is 5-15s, hot blast temperature in the drying tube is 100 ℃-250 ℃, and preferred temperature is 120 ℃-220 ℃.
In actual production process, utilize this equipment can realize the multiple pulses drying, be generally 1-5 subpulse drying, be preferably 2-3 time.
Claims (2)
1, a kind of tobacco pulsed pneumatic drying equipment, it is characterized in that: it comprises that an end is provided with the defeated material drying tube that air inlet (1) and inlet valve (2), the other end are connected with the inner chamber top of the drying tower (7) of inverted cone-shaped structure, and described defeated material drying tube comprises that the tube chamber of feed pipe (4), discharge nozzle (6) and the vertical setting between feed and exhaust tube is Venturi tube-type spreader expansion of structure chamber (5) three parts; Wherein, the back taper cavity of described expansion chamber for restraining gradually to discharge end by feed end; The discharge nozzle (6) that is connected with the discharge end of expansion chamber bottom is connected with the charging aperture that is arranged on drying tower (7) top in the mode of bending from bottom to top; The feed pipe (4) that is connected with the feed end on expansion chamber top is provided with in the mode of bending from top to bottom, and its feed end links to each other with the material source with source of the gas respectively with inlet valve (2) by air inlet (1).
2, tobacco pulsed pneumatic drying equipment according to claim 1 is characterized in that: the top of described drying tower (7) is provided with changes net (8) and gas outlet (9), and its bottom is provided with discharging gas lock (10) and discharging opening (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201478735U CN201219480Y (en) | 2008-07-08 | 2008-07-08 | Pulse airflow drying equipment for tobacco material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201478735U CN201219480Y (en) | 2008-07-08 | 2008-07-08 | Pulse airflow drying equipment for tobacco material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219480Y true CN201219480Y (en) | 2009-04-15 |
Family
ID=40573001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201478735U Expired - Fee Related CN201219480Y (en) | 2008-07-08 | 2008-07-08 | Pulse airflow drying equipment for tobacco material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219480Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125294A (en) * | 2011-01-19 | 2011-07-20 | 安徽中烟工业公司 | Device for automatically removing materials from air duct in tobacco airflow drying tower |
| CN105264319A (en) * | 2013-02-28 | 2016-01-20 | 迪更生莱格公司 | Drying apparatus |
| CN113115968A (en) * | 2021-06-01 | 2021-07-16 | 龙岩烟草工业有限责任公司 | Cut tobacco drying tower, tower type airflow cut tobacco drying machine, cut tobacco making system and tobacco production system |
-
2008
- 2008-07-08 CN CNU2008201478735U patent/CN201219480Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125294A (en) * | 2011-01-19 | 2011-07-20 | 安徽中烟工业公司 | Device for automatically removing materials from air duct in tobacco airflow drying tower |
| CN102125294B (en) * | 2011-01-19 | 2012-10-17 | 安徽中烟工业公司 | Device for automatically removing materials from air duct in tobacco airflow drying tower |
| CN105264319A (en) * | 2013-02-28 | 2016-01-20 | 迪更生莱格公司 | Drying apparatus |
| CN113115968A (en) * | 2021-06-01 | 2021-07-16 | 龙岩烟草工业有限责任公司 | Cut tobacco drying tower, tower type airflow cut tobacco drying machine, cut tobacco making system and tobacco production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |