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Method and equipment for drying filter stick

A drying method and technology of drying equipment, applied in dryers for static materials, drying solid materials, lighting and heating equipment, etc., can solve the problems of poor taste, slow drying speed of filter rods, etc., to avoid too hard or too soft, shortening Drying time, simple effect of equipment structure

Inactive Publication Date: 2015-07-22
BEIJING INST OF AEROSPACE TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of slow drying speed and poor taste of filter sticks, the present invention provides a drying method for filter sticks and equipment adopting the method. The drying method can make filter sticks dry quickly at low temperature in a vacuum state, so that the formed The filter rod has no peculiar smell, no deformation, and reasonable hardness, which is beneficial to the subsequent process. The equipment adopting this method has a simple structure and is easy to use

Method used

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  • Method and equipment for drying filter stick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First introduce the present invention in the specific embodiment of the test:

[0023] Test equipment: electronic balance, infrared moisture meter, caliper, electric furnace, water bath box, laboratory water ring vacuum pump, beaker.

[0024] Weigh the filter rod before applying glue, that is, the filter element and the outer wrapping paper weigh 4.88g in total, and then apply water-based glue to the filter rod, weighing 5.24g.

[0025] Put the filter rod brushed with water-based glue into the beaker, put the beaker into the water bath, and use a water ring vacuum pump to evacuate the beaker to below 0.011MPa, and control the temperature of the water bath at 45°C. Under this environment, the water bath was 1.5 hours. Afterwards, return the beaker to normal pressure and remove the filter rod. Observe that the shape of the filter rod has no defects such as shrinkage, measure the radial and circumferential dimensions of the filter rod, and there is no obvious change, and...

Embodiment 2

[0027] In order to simulate the actual production situation, in this embodiment, the filter rod is placed in a special drying equipment, such as figure 1 ,. The drying equipment includes: a cabinet 3 for accommodating filter rods, one end of the cabinet 3 is provided with a door 6 for filter rods to enter and exit, a vacuum device 2 is provided outside the cabinet 3, and there is a vacuum device 2 between the cabinet 3 and the vacuum device 2. Line 1 is connected. When the filter rod is put into the cabinet of the drying equipment and the door 6 is closed, the cabinet is in a sealed state, and the vacuum device 2 can be opened to vacuum the cabinet 3 . Inside the cabinet 3 is also provided with a heating device 5, the heating device 5 can raise the temperature in the cabinet, so that the filter rod can be dried at a suitable temperature, which can be dried quickly and the drying efficiency can be improved. A blowing device 7 is also arranged inside the cabinet 3, and of cour...

Embodiment 3

[0030] This embodiment also adopts the drying equipment described in Embodiment 2, except that the heating device adopts an electric heating rod device for heating. After the bonded filter rod is put into the case, start the vacuum device to reduce the pressure inside the case to below 0.011MPa, then energize the electric heating rod to heat the inside of the case at a heating rate of 8°C / min, and put the container The internal temperature is controlled within 50°C, and kept in this environment for 3 hours. Afterwards, the filter rod is taken out to obtain a qualified filter rod product.

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Abstract

The invention discloses a method and equipment for drying a filter stick. The drying method comprises the steps of bonding a filtering core of the filter stick and the outer packing paper by an adhesive and then drying the filter stick. The drying method is characterized in that after being bonded, the filter stick is placed in vacuum environment for 1-10 hours. The drying equipment adopting the method is externally equipped with an evacuating device. The filter stick obtained by adopting the drying method provided by the invention has the advantages of no foreign smell, stable size and short drying time. The drying equipment adopting the method has the advantages of simple structure and convenience in use.

Description

technical field [0001] The invention relates to the technical field of cigarette production, in particular to a method for drying a filter stick and a drying device using the method. Background technique [0002] With the continuous development of my country's economy, people's living standards have gradually increased. The improvement of living standards has prompted people to gradually pay attention to health issues. Smoking is harmful to health, so how to reduce the harm of tobacco is a major issue in the tobacco industry, and reducing the tar content of tobacco is the main measure to effectively reduce the harm of tobacco. There are many ways to reduce the tar content. Inexpensive and intuitive, it has become a widely used method for reducing coke and harm. [0003] The filter element of the filter tip that adopts in the cigarette that sells on the market at present has two kinds of acetate fiber and polypropylene fiber. In the process of using these two filter elemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B5/04F26B7/00F26B9/06A24D3/02
Inventor 满鸣杨继志成清校孙大春张华马玉坤李喜路兰卿许鸿昊李亚鹏宋建军
Owner BEIJING INST OF AEROSPACE TESTING TECH
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