CN202269388U - Device for hot-air circulation system of hot-air leaf conditioning cylinder - Google Patents
Device for hot-air circulation system of hot-air leaf conditioning cylinder Download PDFInfo
- Publication number
- CN202269388U CN202269388U CN2011204147492U CN201120414749U CN202269388U CN 202269388 U CN202269388 U CN 202269388U CN 2011204147492 U CN2011204147492 U CN 2011204147492U CN 201120414749 U CN201120414749 U CN 201120414749U CN 202269388 U CN202269388 U CN 202269388U
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- hot
- backwind tube
- return air
- air
- port
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Abstract
The utility model belongs to a device for threshing and redrying production in the field of production and manufacture of tobaccos, in particular to an improved device of a hot-air circulation system of a hot-air leaf conditioning cylinder. The improved device is characterized in that: the cross section of an original air return port is increased by 1.9-2.4 times; a settling chamber is connected between the air return port and a port of an air return pipe; the port of the air return port is shaped as a horn; and the cross section of the port of the air return pipe is 2.5-3.1 times of that of a port of an original air return pipe. The improved device disclosed by the utility model has the advantages of simple structure, convenience for operation and capabilities of greatly reducing the quantity of fragmentary tobaccos carried by return air, eliminating the temperature fluctuation of a rotary drum of the leaf conditioning cylinder because a rotary filtering net does not need to be cleaned basically, ensuring the tobacco leaf quality and increasing the finished product yield.
Description
Technical field
This device belongs to the device that the beating and double roasting in the tobacco manufacturing field is produced, and is specifically related to be used for the modifying device of hot blast tobacco leaf moisting machine hot air circulating system.
Technical background
The hot blast tobacco leaf moisting machine is one of key equipment of threshing and redrying production line, primary processing line, and main effect is that tobacco leaf, smoked sheet are carried out heating and moistening.For realizing saving energy and reduce the cost, the part hot blast of hot blast tobacco leaf moisting machine leans on hot air circulating system to realize recycling, and is equipped with at hot air circulation pipe joint place and rotates through filter screen, with realization the entrained tobacco leaf of circulating air is filtered, separates.
The present hot blast tobacco leaf moisting machine of the inherent usefulness of tobacco business, its hot air circulating system has dual mode: 1. downflow type hot blast tobacco leaf moisting machine, hot blast is to extract out from discharging opening, directly at suction opeing filter screen is installed, and exists problems such as filter screen cleaning difficulty; 2. reverse-flow hot blast tobacco leaf moisting machine, hot blast are to extract out from charging aperture, on the hot air circulation pipeline mounting filtering web plate, rotate through filter screen, exist screen area little, be prone to common problem such as obstruction.
The problem that above-mentioned reverse-flow hot blast tobacco leaf moisting machine exists is comparatively serious: 1, rotating filter Netease stops up, and needs manual work frequently to clean (cleaning in per 15 minutes once); 2, each hand sweeping rotating filter Netease all can cause cold air to get in the hot blast tobacco leaf moisting machine cylinder; Cause temperature fluctuation (each cleaning needs adjustment about 5 minutes); Cause the frequent fluctuation of moisture content in leaves; Have a strong impact on the leaves moisting quality, the leaves moisting quality directly affects follow-up leaf process quality and the product percent of pass of beating.
Summary of the invention
The utility model technical problem to be solved provides a kind of improved device that is used for hot blast tobacco leaf moisting machine hot air circulating system; It is simple in structure, and is easy to operate, can significantly reduce the entrained broken cigarette amount of return air; Rotate through filter screen and need not cleaning basically; Can stop the fluctuation of tobacco leaf moisting machine bowl temperature, guarantee quality of tobacco, improve product qualified rate.
Realize that the technical scheme that the utility model above-mentioned purpose is taked is: make the cross-sectional area of former return air inlet increase 1.9～2.4 times; Between return air inlet and backwind tube interface, be connected expansion chamber, the backwind tube interface is tubaeform and cross-sectional area is 2.5～3.1 times of original backwind tube interface.
The bottom of described expansion chamber is the inclined plane that extends to the return air inlet lower edge, and the backwind tube center line is 1900mm apart from the height distance of return air inlet lower edge.
Two layers that drawing structure is housed in the position that expansion chamber and backwind tube interface join with upper filter screen, at the motor input configuration frequency converter of circulating fan.
The cross sectional dimensions of the return air inlet of this device is 1500mm * 900mm, and the heavy caliber end cross sectional dimensions of backwind tube interface is 2000mm * 1500mm.
The beneficial effect that above-mentioned improvement produced of the utility model is mainly reflected in four aspects: the cross-sectional area that has 1. increased the hot air circulating system return air inlet; Under the good working environment condition of the system of assurance; Can reduce the return air wind speed at return air inlet place, avoid light vanelets and tobacco cut to be taken out of; 2. through the expansion chamber of packing into, improved the position height of backwind tube, increased the draught area of backwind tube interface, can be that entrained broken cigarette provides enough settling height and sedimentation time in the return air; 3. at hot air circulating system backwind tube interface the drawing and pulling type screen pack is installed, can filter return air, and it is very convenient to clear up online tobacco cut; 4. setting up frequency converter can carry out VFC to the circulating fan motor of hot air circulating system, according to actual needs the return air amount of hot air circulating system is controlled, and reduces the return air amount.
Because above-mentioned improvement; Hot blast tobacco leaf moisting machine existing problems have obtained solution; Rotate through filter screen and need not cleaning basically, once be reduced to once in a week, only need night shift every day to shut down the back screen pack that the backwind tube interface front end increases drawing structure newly is once cleaned by cleaning in 15 minutes; Stopped cleaning and rotated through temperature fluctuation in the tobacco leaf moisting machine cylinder that filter screen causes and influence quality of tobacco, improved product qualified rate, and energy consumption also there is reduction, for significant contribution is made in the assurance of inherent quality of tobacco leaf.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Among the figure: tobacco leaf moisting machine roller tube 1, frequency converter 2, circulating fan 3, return air inlet 4, expansion chamber 5, backwind tube interface 6, backwind tube 7, filter screen 8.
The specific embodiment
Referring to Fig. 1; Being improved to of this device increases the cross-sectional area of return air inlet 4 and is original 1.9～2.4 times, between return air inlet 4 and backwind tube interface 6, is connected an expansion chamber 5; And the shape of backwind tube interface 6 is processed as tubaeform, making its heavy caliber end cross-sectional area is original 2.5～3.1 times.Expansion chamber 5 is positioned at the top of return air inlet 4; Therefore its bottom can make the center line of backwind tube 7 be higher than return air inlet for extending to the inclined plane of return air inlet 4 lower edges, obtains enough settling heights; When the center line of backwind tube 7 was 1900mm apart from return air inlet 4 lower edge height distance, effect was even more ideal.The position that expansion chamber 5 and backwind tube interface 6 join is equipped with the filter screen 8 of drawing structure, and this filter screen 8 is provided with two layers or more, can when extracting cleaning out, alternately filter crumbled tobacco, keeps temperature constant in the cylinder.Motor input at circulating fan 3 has disposed frequency converter 2, thereby can further adjust the return air amount of hot air circulating system.The comparatively desirable physical dimension of this device does, the cross sectional dimensions of return air inlet 4 is 1500mm * 900mm, and the heavy caliber end cross sectional dimensions of backwind tube interface 6 is 2000mm * 1500mm.
Claims (4)
1. device that is used for hot blast tobacco leaf moisting machine hot air circulating system; It is characterized in that: the cross-sectional area of former return air inlet increases 1.9～2.4 times; Between return air inlet and backwind tube interface, be connected expansion chamber, the backwind tube interface is tubaeform and cross-sectional area is 2.5～3.1 times of original backwind tube interface.
2. by the described device that is used for hot blast tobacco leaf moisting machine hot air circulating system of claim 1, it is characterized in that: the bottom of expansion chamber is the inclined plane that extends to the return air inlet lower edge, and the backwind tube center line is 1900mm apart from the height distance of return air inlet lower edge.
3. by the described device that is used for hot blast tobacco leaf moisting machine hot air circulating system of claim 2, it is characterized in that: two layers that drawing structure is housed in the position that expansion chamber and backwind tube interface join with upper filter screen, at the motor input configuration frequency converter of circulating fan.
4. by the described device that is used for hot blast tobacco leaf moisting machine hot air circulating system of claim 3, it is characterized in that: the cross sectional dimensions of return air inlet is 1500mm * 900mm, and the heavy caliber end cross sectional dimensions of backwind tube interface is 2000mm * 1500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147492U CN202269388U (en) | 2011-10-27 | 2011-10-27 | Device for hot-air circulation system of hot-air leaf conditioning cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147492U CN202269388U (en) | 2011-10-27 | 2011-10-27 | Device for hot-air circulation system of hot-air leaf conditioning cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202269388U true CN202269388U (en) | 2012-06-13 |
Family
ID=46189785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204147492U Expired - Lifetime CN202269388U (en) | 2011-10-27 | 2011-10-27 | Device for hot-air circulation system of hot-air leaf conditioning cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202269388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104082842A (en) * | 2014-07-28 | 2014-10-08 | 云南烟叶复烤有限责任公司大理复烤厂 | Air-volume-stable heated air circulation method |
| CN104138024A (en) * | 2014-07-28 | 2014-11-12 | 云南烟叶复烤有限责任公司大理复烤厂 | Hot air circulation system with stable air volume |
| CN103277347B (en) * | 2013-05-29 | 2015-09-23 | 江苏中烟工业有限责任公司徐州卷烟厂 | A kind of cleaning apparatus of moisture-eliminating blower suction port |
-
2011
- 2011-10-27 CN CN2011204147492U patent/CN202269388U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277347B (en) * | 2013-05-29 | 2015-09-23 | 江苏中烟工业有限责任公司徐州卷烟厂 | A kind of cleaning apparatus of moisture-eliminating blower suction port |
| CN104082842A (en) * | 2014-07-28 | 2014-10-08 | 云南烟叶复烤有限责任公司大理复烤厂 | Air-volume-stable heated air circulation method |
| CN104138024A (en) * | 2014-07-28 | 2014-11-12 | 云南烟叶复烤有限责任公司大理复烤厂 | Hot air circulation system with stable air volume |
| CN104138024B (en) * | 2014-07-28 | 2015-12-30 | 云南烟叶复烤有限责任公司大理复烤厂 | The hot air circulating system that a kind of air quantity is stable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |