19 results about "Paper filter" patented technology

The utility model belongs to the technical field of cigarette filter stick production, and particularly relates to a ternary composite filter tip for improving the comfort level of an ultra-low tar cigarette, which consists of a paper filter stick section, a quality-improving and aroma-enhancing section, a special-shaped hollow core section and molding paper, and the paper filter stick section, the quality-improving and aroma-enhancing section and the special-shaped hollow core section are sequentially arranged from a tobacco shred end to an inlet end and are wrapped and fixed by the molding paper. The ternary composite filter tip has the functions of reducing tar, guaranteeing the physiological satisfaction of smoking, improving the comfort level and fragrance quality of smoke and improving the state of the smoke, the hollow core structure can be designed into various shapes, and the purpose of novel and unique appearance is achieved.

The invention belongs to the technical field of tobacco processing, and provides an aroma-enhanced paper filter stick based on bioelectric fermentation and a preparation method thereof.The aroma-enhanced paper filter stick comprises modified high-permeability forming paper and effective aroma components fixed to the modified high-permeability forming paper through a loading and drying process and derived from a tobacco concentrated solution, the surface of the modified high-permeability forming paper is coated with an adsorption enhancer prepared by mixing polyvinyl alcohol and nano silicon dioxide as raw materials; the tobacco concentrated solution is prepared from waste tobacco as a raw material through bioelectric fermentation in a weak electric field. The aroma characteristic of the tobacco concentrated solution is directionally optimized through the bioelectric fermentation technology, the brand-new aroma-enhanced paper filter stick is prepared in cooperation with the modified high-permeability forming paper preparation technology, and the problems that a traditional filter stick is poor in aroma enhancement effect, insufficient in aroma coordination, high in production energy consumption and poor in environmental protection property can be solved.

This disclosure provides a paper filter rod comprising: a filling material and an inner filter rod forming paper surrounding the filling material, wherein the average area of ​​the pores formed in a cross-section perpendicular to the long axis is less than 0.15 mm. 2 The hardness in the direction perpendicular to the long axis, as defined in formula (1), is greater than 75% and satisfies formula (2). Hardness (%) in the direction perpendicular to the long axis = (Dd / Ds) × 100 (1) Pressure drop per 1 mm length in the long axis direction / filling density of the filler material < 22 mmH2O × mm 2 / mg (2)

The invention discloses a cigarette filter rod made of reconstituted tobacco and a preparation method thereof. The preparation method comprises the following steps: performing enzymolysis extraction on tobacco stems and tobacco powder; the extraction residues and wood pulp are mixed and ground into pulp, and the pulp is manufactured into a three-layer composite substrate with the middle layer being activated carbon powder through a twin-wire forming machine; concentrating the tobacco powder extracting solution under reduced pressure, coating the concentrated tobacco powder extracting solution on a three-layer composite substrate, and drying and rolling; and cutting the reconstituted tobacco roll into strips with the width of 5-15cm, twisting the strips into a rope, and coating a layer of cigarette paper to obtain the cigarette filter tip rod. According to the invention, the sandwich-net-shaped three-layer composite substrate with the activated carbon as the middle layer is adopted, so that the filter capacity is enhanced, the falling of activated carbon powder can be reduced, and the quality stability of the filter stick is improved; the process of combining tunnel type airflow drying and microwave drying is adopted, so that the problem of fiber shrinkage and collapse can be relieved, and the suction resistance of the paper filter stick is reduced; by adopting the process of twisting the reconstituted tobacco into the rope to manufacture the filter stick, the compression resistance and the tension resistance of the filter stick can be improved, and the thermal collapse problem of the filter stick is relieved.

The invention relates to the technical field of cigarette filter stick paper, in particular to paper filter stick paper for cigarettes and a preparation method thereof, and the paper filter stick paper comprises the following raw materials in parts by weight: 250-300 parts of water, 35-40 parts of a first base material, 30-35 parts of a second base material, 6-8 parts of glycerol, 2-3 parts of triethyl citrate, 8-12 parts of aluminum hydroxide, 2-4 parts of citric acid and 8-12 parts of an additive. According to the invention, the corn starch selectively oxidized by sodium periodate is used as a first base material, and the bamboo pulp fiber subjected to fine treatment is used as a second base material, so that the traditional cellulose acetate is completely replaced, the biodegradation rate of the filter stick in the environment is obviously accelerated, and the pollution problem caused by material inertia is fundamentally solved.

This utility model provides a filtration device for a laminator, relating to the field of laminator filtration technology. It aims to solve the problems of poor filtration efficiency in existing vacuum pumps that use conventional paper filter elements to filter the gas generated during vacuuming. This allows impurities such as welding slag and iron filings to penetrate the filter element and enter the vacuum pump cavity, affecting normal operation. Furthermore, the accumulation of impurities and dust necessitates frequent inspection, maintenance, and upkeep of the vacuum pump and filter, increasing maintenance costs. The proposed device includes a vacuum pump system with a laminator vacuum valve installed on its left side. A filter tank system is installed between the vacuum pump system and the laminator vacuum valve. The tank serves as a pre-vacuum tank to pre-vacuum the cavity. A bypass design is used; after pre-vacuuming, the filter tank's function is disabled, and the pump directly evacuates the cavity, reducing pump load, effectively improving equipment evacuation efficiency, reducing vacuum pump filter consumption, and minimizing pump maintenance.

The invention relates to the technical field of industrial waste resourceful treatment, in particular to a waste aluminum electrolytic capacitor recycling method which comprises the steps that waste A is obtained through a crusher, the waste A is conveyed to a cyclone dust collector to recycle crushed dust, and waste B is conveyed to a first-stage air separation machine; the waste material B is separated through a first-stage air separation machine to obtain electrolytic paper and a waste material C, the electrolytic paper is fed into a hydraulic crusher through a conveying belt to be crushed, a waste material D at a discharging opening of the hydraulic crusher is washed through a 6S shaking table to obtain a solid-liquid mixture, the solid-liquid mixture is fed into a filter press to obtain an electrolytic paper filter cake and press filtrate, and the press filtrate is subjected to chemical treatment; aluminum foil and waste E are separated from the waste C through a second-stage air separation machine; a guide pin and a waste material F are separated from the waste material E through a magnetic separator; aluminum sheets and rubber plugs are separated from the waste material F through a color sorter. According to the waste aluminum electrolytic capacitor recycling method, the waste aluminum electrolytic capacitor is harmlessly treated in a physical and chemical combined treatment mode, and the good separation and recycling effect is achieved.

This utility model discloses a high-temperature melting device for waste stainless steel, including an outer melting control frame and a rotating adjustment frame. The outer melting control frame is located inside the rotating adjustment frame, and a base is fixedly connected to the lower end of the rotating adjustment frame. An inner melting tank is fixedly connected to the inner wall of the outer melting control frame. During the high-temperature melting process, this waste stainless steel high-temperature melting device generates a large amount of fumes and harmful substances. A suction pump draws the fumes and harmful substances into the suction hopper and transmits them through a transmission pipe to the inside of the purification chamber. The purification filter cartridge contains glass fiber filters, polyester fiber filters, ceramic fiber filters, activated carbon filters, and flame-retardant paper filters, which can filter the inhaled fumes and harmful substances layer by layer, effectively removing these harmful substances, reducing emissions, minimizing environmental pollution, improving the working environment, and protecting workers' health.

To provide a simple coffee brewing device that can achieve both high extraction efficiency through immersion brewing and a clear extract with reduced contamination of fine particles, while suppressing variations in extraction results due to operating conditions. [Solution] The coffee brewing device comprises a stainless steel mesh holding member 1 and a paper filter 2 that is detachably attached to the holding member. Coffee grounds are placed inside the paper filter, and the holding member and the holding member together are placed inside a container 3. After supplying hot water to the container and immersing the members for a certain period of time, the holding member is removed from the container, thereby filtering and discharging the extracted liquid through the paper filter.

This invention aims to find out a sustainable and cost-effective option for the management of dyes-rich effluent produced by textile industries. It consists on the following steps: i) preparation of an alkaline-modified lignocellulosic biomass by stirring orange tree sawdust into a 0.14 M NaOH solution at ambient temperature and 1 h of contact time, ii) the effective adsorption of dyes from effluents by this adsorbent in column mode, iii) the desorption of the loaded alkaline-modified adsorbent in column mode by using a filtered seawater solution though a paper filter having a porosity of 0.45 µm, iv) the recovery of the dye as a solid phase from the highly-concentrated desorbing solution by decantation at 4 °C. This solid phase can be used again in others similar dyeing processes, v) the degradation of the residual dye in the desorbing solution through electrochemical treatment under galvanostatic mode by using a boron-doped diamond layer (BDD) as anode / cathode with 1 mm gap between at T= 25°C. The generated active radicals (HCIO and CIO) from the Cl ions existing in the seawater ensure a high discoloration and total organic carbons degradation with a remarkably low consumed energy. The treated wastewater may be reused again by the company inside or outside their dyeing process.

The utility model discloses an air filter inner core subassembly relates to air filter element technical field. An air filter inner core subassembly includes: the outer layer metal support net, nanometer metal filter screen, inner layer metal support net that set up in proper order from outside to inside, the utility model has high strength, high breaking degree, high air permeability etc. advantage, second nanometer metal filter screen has good thermal stability, and it is more suitable for using under high temperature environment, and nanometer metal filter screen can take place elastic deformation under the airflow impact simultaneously, has good resilience, compares traditional paper filter core to avoid the fiber fracture problem of paper filter core, and nanometer metal filter screen compares paper filter core and will not because of humid etc. problem, and the problem of air permeability drop occurs, and the traditional paper filter core is in the case where air is humid, and moisture will cause paper filter core humid, causes dust and other foreign matters to adhere on paper filter core, and causes air permeability to drop, and then influence ventilation capacity.

The application discloses a multifunctional long-acting composite filter element and belongs to the technical field of lubricating oil filtration, which comprises an upper core body assembly and a lower core body assembly; the upper core body assembly comprises a non-woven fabric folded surface area type filtering core body; the lower core body assembly comprises a biomass volumetric filtering core body; the upper core body assembly and the lower core body assembly are combined into a composite filter element with surface area type filtering and volumetric filtering; the upper core body assembly and the lower core body assembly are connected and fixed by a middle cover plate; the inner side central parts of the upper core body assembly and the lower core body assembly are respectively provided with a central pipe; the upper end of the upper core body assembly is fixedly connected with an upper cover plate; and the lower end of the lower core body assembly is fixedly connected with a lower cover plate. Compared with a traditional paper filter element under the same conditions, the multifunctional long-acting composite filter element has the advantages of large flow, small pressure difference, good filtering fineness, high filtering efficiency, long service life and the function of repairing lubricating oil, thereby greatly prolonging the service life of the lubricating oil.

The utility model relates to the technical field of medicinal material processing, and discloses a spray drying tail gas treatment device which comprises a filtering barrel and a ventilation pipe communicated with the right side of the outer surface of the filtering barrel, a top cover is arranged on the upper surface of the filtering barrel, an air inlet pipe is communicated with the lower surface of the filtering barrel, and a gear ring is rotationally connected with the outer surface of the air inlet pipe. And the right side of the lower surface of the filtering barrel is vertically and rotatably connected with a gear engaged with the gear ring by inserting a rotating shaft. According to the spray drying tail gas treatment device, a primary filter element, a gear, a gear ring and a brush are matched for use, so that tail gas enters a filter barrel through the primary filter element, a driving motor drives the gear to rotate through a rotating shaft, the gear drives the gear ring and the primary filter element to rotate, and the brush cleans dust on the inner wall of a paper filter cylinder; therefore, the condition that the primary filter element is blocked by dust is avoided, the smoothness of dry tail gas emission is improved, the frequency of replacing the filter element by workers is reduced, and the production efficiency of the spray dryer is improved.

The utility model discloses a convenient-to-replace filter for offshore inverted tank refueling, which comprises a filter body, a cover plate is arranged at the top of the filter body, a sealing ring is fixedly connected to the top of the filter body, and a filter component is arranged in the filter body. When the filter assembly in the filter body needs to be replaced, a user rotates the operating rod, the operating rod drives the fixed disc to rotate, the fixed disc drives the threaded sleeve to rotate, the threaded sleeve upwards drives the fixed disc to move upwards, limiting on the movable frame can be omitted, then the movable frame can be turned over, and the filter assembly can be replaced conveniently. The movable frame can be opened, then the cover plate is opened, and the fixed frame is taken out, so that the first fuel filter plate, the second glass fiber paper filter plate and the cotton filter plate can be taken out and replaced, and then the filter can normally continue to operate after the fixed frame is reset and the cover plate is sealed, so that the filter body achieves the effect of being convenient to replace.

This invention belongs to the field of tobacco paper technology, and provides a formed paper for use in paper filter rods and its preparation method. The formed paper has a three-layer gradient porous composite structure, including a permeable support layer, a high-efficiency adsorption layer, and a liquid-locking and anti-seepage layer stacked sequentially, with interconnected pores between the layers. The permeable support layer is formed from a permeable support layer slurry, the raw materials of which include low-beaten softwood pulp and cationic starch, obtained through gelatinization. The high-efficiency adsorption layer is formed from a high-efficiency adsorption layer slurry, the raw materials of which include enzymatically modified grafted fibers, tobacco-derived modified porous carbon carrier, tourmaline powder, and a foaming agent, obtained through a wet compounding and foaming process. The liquid-locking and anti-seepage layer is formed from a liquid-locking and anti-seepage layer slurry, the raw materials of which include enzymatically modified grafted fibers and modified pectin-chitosan composite adhesive, obtained through mixing and dispersion. This invention features high permeability, high tar selective adsorption rate, and high aroma retention rate.

A filter portion 30 for a flavor inhalation article, the filter portion comprising: a paper filter formed from a sheet member; and a filler (33) that is provided inside the paper filter and that changes a flow path inside the paper filter, in which the sheet member (31a) is processed between the downstream end of the filter portion (30) and the filler (33).

The invention belongs to the technical field of filtering systems, and discloses a hot rolling grinding roller grinding mud filtering system which comprises a deposition box, a magnetic filter is arranged at the front end of the deposition box, a water pipe is arranged on the outer side of the magnetic filter, a paper filter is arranged at the other end of the water pipe, and a grinding machine water outlet groove is formed in the rear end of the deposition box. The deposition box is composed of a side plate, a rear plate, a front plate and a lower plate, the rear plate is fixedly installed at the rear end of the side plate, and the front plate is fixedly installed at the front end of the side plate. After the grinding mud is automatically deposited, the working load of the grinding mud magnetic filter is reduced, the fault rate of the magnetic filter and the filter system is reduced, the service life of the magnetic filter system is prolonged, an effective oil-water separation means is adopted, oil stains are reduced or prevented from entering a paper filter box and a cooling pool, the emulsification time of cooling liquid is prolonged, and the oil-water separation efficiency is improved. And the running cost of roller grinding is reduced.

A filter portion 30 for a flavored inhalation article, the filter portion comprising: a paper filter; and a filler 33 disposed inside the paper filter and changing a flow path within the paper filter, wherein the paper filter is a filter 31 in which a sheet member 31a is crimped, and a basis weight of the sheet member 31a at a position corresponding to the filler 33 is less than a basis weight of the sheet member 31a at a position not corresponding to the filler 33.

The application provides a full-plant fiber paper filter rod filter core base paper and a preparation method and a paper filter rod, and the preparation raw materials comprise mixed plant fiber slurry and sizing aids; the plant fibers in the mixed plant fiber slurry comprise conifer fibers, bamboo fibers, mulberry bark fibers, bark fibers and hemp fibers; the conifer fibers account for 40-96% of the mass of the plant fibers; the bamboo fibers account for 1-50% of the mass of the plant fibers; the mulberry bark fibers account for 1-50% of the mass of the plant fibers; the bark fibers account for 1-50% of the mass of the plant fibers; and the hemp fibers account for 1-50% of the mass of the plant fibers. The mixed plant fibers with specific proportions are used to prepare the base paper, the machine adaptability of the paper filter rod forming equipment can be met, and the paper filter rod with good appearance, stable circumference and pressure drop is prepared.