The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Dec. 23, 2019
China Tobacco Hunan Industrial Co., Ltd., Hunan, CN;
Yong Jin, Hunan, CN;
Qian Chen, Hunan, CN;
Ke Li, Hunan, CN;
Hongmei Fan, Hunan, CN;
Saibo Yu, Hunan, CN;
Shitai Wang, Hunan, CN;
Chao Tan, Hunan, CN;
Haifeng Tan, Hunan, CN;
Qi Liu, Hunan, CN;
CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD., Hunan, CN;
Abstract
A device and method for preparing a fully granular cigarette/filter rod, and a prepared fully granular cigarette/filter rod are disclosed. In certain embodiments, negative pressure is used to adhere granular material onto a mesh-type conveyor belt. The granular material is preliminarily formed into fully granular cigarette/filter rod material by means of a pre-forming apparatus; the fully granular cigarette/filter rod material, traveling with the mesh-type conveyor belt, enters into a forming cavity, and undergoes heating and humidifying treatment, and a continuous solid porous substance is formed; the continuous solid porous substance is moved into the cooling/drying cavity, drying and cooling treatment are performed under the action of negative pressure, and a fully granular cigarette/filter rod with strong adhesion, porosity, permeability, and appropriate moisture is obtained.