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Method and device for removing impurities of tobacco leaves in pre-processing stage of threshing and redrying

A technology of threshing and redrying and pretreatment, which is applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of large floor area, low screening efficiency, and effective separation of fragments, and achieve low crushing of tobacco leaves and high efficiency of impurity removal Thorough and efficient removal of impurities

Active Publication Date: 2012-03-28
YUNNAN KUNCHUAN TOBACCO EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the drum type sand screening machine has high screening efficiency, it gradually fades out of the market due to its shortcomings of large crushing and large floor space.
Although the roller vibrating sieving machine has the advantages of low crushing rate and small footprint, because the tobacco leaves cannot be completely turned 180 degrees during the blanking process, the sand and debris adhering to the other side of the tobacco leaves cannot be effectively shaken through shaking. Separation, so the screening efficiency is low. Although it has been adopted by the industry, the screening efficiency has not been able to meet the process requirements, and the equipment maintenance is inconvenient.
In addition, there is no hemp removal function, only sand, debris, etc. can be separated, and the hemp mixed in the tobacco leaves cannot be removed

Method used

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  • Method and device for removing impurities of tobacco leaves in pre-processing stage of threshing and redrying
  • Method and device for removing impurities of tobacco leaves in pre-processing stage of threshing and redrying
  • Method and device for removing impurities of tobacco leaves in pre-processing stage of threshing and redrying

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Embodiment Construction

[0015] Such as figure 1 , figure 2 As shown, a device for removing impurities in tobacco leaves in the pretreatment stage of threshing and re-baking, including a frame 1, a bottom screening roller conveying device 12 installed on the frame and with staggered and opposite conveying directions, and a middle screening roller conveying The device 5 and the top screening roller conveying device 3 are arranged at the bottom of the top screening roller conveying device 3 and the top impurity collection belt conveyor 4 whose conveying direction is perpendicular to the top screening roller conveying device is arranged on the middle screening roller The middle layer impurity collection belt conveyor 7 at the bottom of the conveyor device 5 and the conveying direction is the same as the top layer impurity collection belt conveyor 4, the feed belt conveyor 2 connected to the feeding end of the top layer screening roller conveyor device 3, and the middle layer screening roller table The ...

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Abstract

The invention discloses a method and a device for removing impurities of tobacco leaves in the pre-processing stage of threshing and redrying. The method comprises the following steps: conveying the tobacco leaves for a certain distance by a horizontal top screening roller channel conveying device; turning the tobacco leaves for 180 degrees, and conveying a certain distance by a middle screening horizontal roller channel conveying device; later turning the tobacco leaves for 180 degrees, and conveying a certain distance by a bottom screening horizontal roller channel conveying device; removing the impurities adhered on the upper surfaces and the lower surfaces of the tobacco leaves from the gaps among the roller channels, and separating the impurities from the tobacco leaves; and simultaneously arranging impurity collecting devices at the lower sides of the top screening roller channel conveying device, the middle screening roller channel device, and the bottom screening roller channel device, and collecting the dropped impurities. The invention can effectively separate the impurities and fragments, such the sand, dust and hemp thread, from the tobacco leaves in the pre-processing stage of threshing and redrying, and can effectively reduce the broken tobacco. The device has a compact structure and small taken area.

Description

technical field [0001] The invention relates to the technical field of a method and equipment for screening and removing impurities from tobacco leaves in a pretreatment section of a threshing and redrying line in the tobacco industry. Background technique [0002] At present, in the threshing and redrying process and equipment at home and abroad, there are mainly two modes for the sand screening process, namely, the drum type sand screening machine and the roller vibrating screening machine. Although the drum type sand screening machine has high screening efficiency, it gradually fades out of the market due to the shortcomings of large crushing and large floor space. Although the roller vibrating sieving machine has the advantages of low crushing rate and small footprint, because the tobacco leaves cannot be completely turned 180 degrees during the blanking process, the sand and debris adhering to the other side of the tobacco leaves cannot be effectively shaken through sha...

Claims

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Application Information

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IPC IPC(8): A24B1/04
Inventor 张俊荣李艳华杨芳李飞陆劲旭徐春梅江红春孙黎明赵艳妮赵威宇易洪杰
Owner YUNNAN KUNCHUAN TOBACCO EQUIP CO LTD
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