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350 results about "Paper filter" patented technology

Low-temperature heating type electronic cigarette heater

A low-temperature heating type electronic cigarette heater comprises a heater component, a composite cigarette core and a cigarette holder portion. The composite cigarette core is consumable and cannot be reused, and the other portions are reusable; the composite cigarette core is composed of a core body and a filtering core in a combined manner and fills the heater component, the core body adopts natural plant fibers as the base material and is provided with tobacco aroma substances in an absorbed manner and tea polyphenol microcapsules, and the filtering core is tobacco paper filtering core compounded with bamboo fibers and is prevented from being carbonized during heating; a cigarette holder is connected to the heater component in a sleeved manner; the heater component comprises a connecting component, a supporting seat, a ceramic heating ring and a heat insulating sleeve. The composite cigarette core contacts with the ceramic heating ring in a cylindrical surface manner, the heating area is large, three ways, namely conduction, convection and radiation, of heat transfer during heating are provided, and the heating efficiency is high; the cigarette core releases contained tobacco ingredients through low-temperature heating, the taste is similar to that of a traditional cigarette, and toxics produced in the burning process can be avoided.
Owner:POWERTHINK (BEIJING) TECH CO LTD +2

Paper cigarette filter rod filter media and processing method thereof

The present invention discloses a paper cigarette filter rod filter media and a processing method thereof, wherein the paper filter media is obtained through performing a dry process on the following components: 40-74% of natural cigarette fiber, 4-40% of bast fiber, 1-12% of natural tobacco waste raw material, and 4-20% of adhesive. The method comprises the following steps: raw material processing, main fiber mixing shaping, waste material adding and prepared paper shaping process. After the natural tobacco fiber is mixed with the bast fiber, discongestion is performed. After sufficient dispersion, the mixed material is conveyed to a shaping section through a blower for being laid on a net and shaped. A fluffy and uniform fiber net is formed on a shaping net belt. The cigarette filter media paper is obtained through adhesive applying, preheating, roller pressing, solidifying and shaping. As the cigarette fiber is used as the main fiber raw material, the paper cigarette filter rod filter media according to the invention has reduced foreign gas of wood and settles a problem that the fragrance quality is reduced by the foreign gas of wood in the prior-art paper filter rod. The natural tobacco waste raw material is added in the paper shaping process. Not only is whole aesthetic quality of the cigarette improved, but also the tobacco raw material is uniformly distributed in the dry process paper and does not easily drop off. The quality of the filter rod is more stable.
Owner:YUNNAN REASCEND TOBACCO TECH GRP

Method for preparing nanofiber membrane modified paper base material based on electrostatic spinning and application of nanofiber membrane modified paper base material

The invention discloses a method for preparing a nanofiber membrane modified paper base material based on electrostatic spinning and an application of the nanofiber membrane modified paper base material. The method for preparing the nanofiber membrane modified paper base material based on the electrostatic spinning comprises the following steps: after dissolving a polymer raw material into a solvent to prepare a spinning solution, putting the spinning solution into a liquid storage device; after adjusting the voltage of the electrostatic spinning, continuously feeding the spinning solution in the liquid storage device into a spinning head connected with the liquid storage device through a micro pump; and spraying the spinning solution by the spinning head to the surface of a raw paper base body which moves continuously to form a nanofiber membrane, thereby obtaining the nanofiber membrane modified paper base material. The preparation method is simple and can realize continuous industrial production; the prepared nanofiber membrane modified paper base material is applied to preparation of a cigarette paper filter stick which can be used for improving the smoking quality of cigarettes and effectively reducing tar and phenol releasing amount in main stream smoke of the cigarettes.
Owner:CHINA TOBACCO HUNAN INDAL CORP

Cigarette filter tip added with chitosan-graphene oxide composite material

Belonging to the technical field of cigarette filter tip production, the invention relates to a chitosan-graphene oxide composite material with efficient adsorption capacity on harmful ingredients of cigarette main stream smoke and a cigarette filter tip prepared from the material. The cigarette filter tip is prepared from the chitosan-graphene oxide composite material by a solution miscibility technique. Firstly the chitosan-graphene oxide composite material is prepared into a cigarette paper filter tip unit, and then the cigarette paper filter tip unit is prepared into a binary composite filter tip. Under the circumstance of a very small adding amount into the cigarette filter tip, the chitosan-graphene oxide composite material for cigarette filter tips provided by the invention can realize efficient adsorption of volatile aldehyde and ketone promoting molecules, phenol, HCN and the like. Also, the composite material is green, environment-friendly, and free of additional toxicity. At the same time, the preparation method has the characteristics of simplicity, easily available raw materials, easy scale production and low production cost. Thus, the cigarette filter tip added with the chitosan-graphene oxide composite material has broad application prospects in the harm and tar reduction field of cigarettes.
Owner:CHINA TOBACCO HENAN IND

Ternary tobacco fiber paper filter stick of composite moistening plants and preparation method thereof

The invention relates to the technical field of tobacco filter sticks and discloses a ternary tobacco fiber paper filter stick of composite moistening plants. The ternary tobacco fiber paper filter stick is composed of a filter element and a molding paper wrapped on the filter element, the filter element comprises two sections of tobacco fiber paper filter elements and a moistening plant filter element arranged between the two sections of tobacco fiber paper filter elements, the tobacco fiber paper filter element is reeled by paper fibers, and the moistening plant filter element is pressed by throat moistening plant particle. The ternary tobacco fiber paper filter stick is based on wet-method papermaking and enables tobacco fiber slurry and long fiber slurry to be mixed according to appropriate proportion in a papermaking slurry mixing stage, and the prepared paper filter stick has stronger tar and nicotine removal capability than cellulose acetate fibers, does not bring in miscellaneous gas, wet whistles and returns sweet. Raw material resources are natural plants, the ternary tobacco fiber paper filter stick has no paper or chemical fiber taste, the color of the ternary tobacco fiber paper filter stick is same with that of cigarette scraps, the ternary tobacco fiber paper filter stick has strong natural material texture of tobaccos, and guides a new research direction for the technical field of cigarettes.
Owner:CHINA TOBACCO GUANGDONG IND

Preparation method of natural plant carbonated material and application thereof to cigarette filter rod

The invention discloses a preparation method of a natural plant carbonated material and application thereof to a cigarette filter rod. The carbonated material is obtained by pretreating a natural plant raw material and then carrying out carbonization treatment. The application of the natural plant carbonated material is realized by the following steps: adjusting the water content of granulate carbonated material the grain diameter of which is 20-60 meshes to the water content of 6-8 percent; then evenly spreading the carbonated material on a filter rod tow; processing the carbonated material into a cigarette filter rod by using cigarette filter rod forming equipment; or crushing the carbonated material to a powdery carbonated material with less than 100 meshes; evenly coating the powdery carbonated material on paper filter rod core paper on which a paper filter rod can be coated or evenly spreading the powdery carbonated material on the paper filter rod core paper or corrugated filter rod paper for cigarettes; and processing the powdery carbonated material into the cigarette filter rod by using the cigarette filter rod forming equipment. The invention can be used for applying the carbonated material taking a natural plant as the resource to the cigarette filter rod, can effectively reduce harmful components in smoke gas of the cigarettes and cannot influence the smoking quality and the style character of Chinese cigarette products.
Owner:YUNNAN REASCEND TOBACCO TECH GRP

Filter apparatus and count method for counting porphyra spores

The invention relates to a filter apparatus and a count method for counting porphyra spores. The apparatus comprises a piston rod and a piston cylinder, wherein the piston rod enters the piston cylinder from one end of the piston cylinder and is arranged in the piston cylinder in a reciprocating manner, a water inlet hole is formed in the upper side wall of the piston cylinder, the water inlet hole is communicated with a sampling tube by virtue of an electromagnetic valve, and the sampling tube is internally and serially connected with a water pump; the middle portion of the piston cylinder is converged, a manual valve is arranged at a converged position, the piston cylinder forms a water storage cavity at the upper portion of the manual valve and forms a paper filter cavity at the lower portion of the manual valve; and a lower opening of the paper filter cavity, i.e. an opening of the piston cylinder is connected with a pressure block with a filter water outlet in the middle portion, the pressure block presses a piece of filter paper at the opening of the paper filter cavity, the filter paper is white, and pores of the filter paper are smaller than porphyra spores. Sample spore fluid with sufficient water is filtered by the filter paper, so that the spores are intercepted on the filter paper, the number of the spores on the filter paper is observed by a microscope, and then the spore concentration in an entire culture pond is then calculated.
Owner:INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU

Purifying device for paint spraying organic waste gas and solvent recovering method thereof

The invention discloses a purifying device for paint spraying organic waste gas. The purifying device comprises a paint mist removing device, an oil stain filter, a cooler, a fan, a purifying tank, a condenser and an oil-water separator connected in sequence, wherein the paint mist removing device comprises a paper filter, a cyclone dust collector and a bag-type dust collector; the inlet of the paper filter is connected with an organic solvent waste gas pipe of a paint room; the outlet of the paper filter is connected with the inlet of the cyclone dust collector; the outlet of the cyclone dust collector is connected with the inlet of the bag-type dust collector; and the outlet of the bag-type dust collector is connected the oil stain filter. Due to the adoption of the device, the paint mist removing capability is greatly improved, active carbon is prevented from being polluted, and the recovering purity of an organic solvent is increased simultaneously. The invention further discloses a method for recovering an organic solvent by using the purifying device. The method comprises the following steps of: removing paint mist and oil stains; cooling and absorbing organic solvent waste gas; desorbing with water steam; condensing; and separating oil and water, wherein in the step for removing the paint mist, paint mist is effectively removed after being turned into paint powder; and the process of the method is reasonable, and contributes to saving energy and labor sources.
Owner:QUANZHOU TIANLONG ENVIRONMENTAL ENG

Telescopic filter

InactiveCN103286003AGuaranteed Compactness RequirementsMeet the requirements of special installation environmentMagnetic separationThree stageEngineering
The invention discloses a telescopic filter which consists of a plurality of telescopic stages, and comprises a first stage of filter, a second stage of filter and a third stage of filter; a three-stage filtering way is formed by net type filter cores, paper filter cores and magnetic bars which are respectively arranged in the multiple stages of filters; internal hydraulic oil entering the filters or an external hydraulic oil source is adopted to control the extension of the stages of filters; the stages of filters can slide in a cylinder barrel between a shell of the first stage of filter and a welding steel cylinder, so that the filter cores of the filters can fully stretch for filtering; the filters can filter in the manner that hydraulic oil enters the filters through an oil hole of a one-way valve, and then the stretching filter cores are used for fully filtering. The pressure alarm and signal transmission can be carried out by a pressure relay of the system. When outlets of the filters are blocked and the filter cores need to be replaced, the stages of filters can retract into a first stage of cylinder barrel by virtue of the external hydraulic oil source so as to be disassembled. The filter is compact in structure, good in effect of three-stage filtering, simple to install and convenient to disassemble.
Owner:YANSHAN UNIV
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