48 results about "Paper filter" patented technology

The invention discloses a gasoline filter element assembly machine and a using method thereof, and belongs to the technical field of gasoline filter element assembly.The gasoline filter element assembly machine comprises a workbench, a plurality of filter material positioning mechanisms are linearly arranged on the side wall of the workbench at equal intervals, and paper filter materials to be glued are arranged on the filter material positioning mechanisms; a downward pressing mechanism is arranged at each circular opening in the upper surface of the workbench, an end cover is arranged at the output end of each downward pressing mechanism, the filter material positioning mechanism comprises a cylinder, a cover body and a chassis, a limiting plate is arranged on the side wall of the cylinder, the front edge of the limiting plate can make contact with a crease of a paper filter material, and a gluing mechanism is arranged above the cylinder. The folding marks of the paper filter material are limited, deformation, deviation and adhesion of the folding marks during gluing are avoided, the design can be adjusted to adapt to filter materials with different folding mark numbers, universality is improved, glue brushing is guided, glue consumption is reduced, overflowing and hole blocking are prevented, the filter area is guaranteed, the process is simplified through integrated design, the rejection rate is reduced, and the filter performance and efficiency are both considered.

An unheated-type aerosol-generating article comprises a tobacco medium filled in at least one of a cellulose acetate filter and a paper filter, wherein the tobacco medium comprises: granules including tobacco powder; and an aqueous PH-adjusting solution including a pH adjusting agent and moisture, and the tobacco medium may contain 8-9 wt% of moisture with respect to the dry weight of the tobacco medium.

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.

This invention relates to a paper filter material, its preparation method, and its application. The preparation method of the paper filter material includes the following steps: S1. Preparing flash-dried pulp, mercerized pulp, cylinder-dried pulp, and water into a slurry; S2. Applying internal sizing to the slurry obtained in step S1, followed by molding, dewatering, and drying to obtain a base paper; S3. Applying surface sizing to the base paper obtained in step S2 using starch, followed by drying to obtain the paper filter material. The paper filter material obtained by this preparation method maintains good air permeability and high bulk. When used as a filter element, it forms a paper filter rod with low suction resistance and good suction resistance stability, which can replace current cellulose acetate filter rods, balancing production cost, environmental protection, and suction experience.

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 utility model discloses an unprocessed grain drying tower with a waste gas settling and collecting mechanism, and relates to the technical field of agricultural mechanical equipment, the unprocessed grain drying tower comprises a grain drying tower, the left side of the grain drying tower is fixedly connected with two groups of hot air pipes, and the unprocessed grain drying tower with the waste gas settling and collecting mechanism is provided with a cyclone separator and a paper filter plate. When the grain drying tower is used, the sucking pump can be started to suck waste gas in the grain drying tower into the cyclone separator for sedimentation, after the waste gas enters the cyclone separator, linear motion of airflow is changed into circular motion, particles move towards the conical wall of the barrel under the action of centrifugal force, and large particles are spirally thrown downwards into the storage box to be collected. Light-weight air is sucked into the air sucking pump through the air outlet, is firstly primarily filtered by the paper filter plate, then is secondarily filtered by the molecular sieve filter plate, and finally is finally filtered by the activated carbon filter plate, so that the waste gas is deodorized, and the problem that the device cannot settle and collect the waste gas is solved.

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.

A hollow composite filter stick with variable draw resistance relates to the technical field of cigarettes and comprises a filter element and a wrapping layer (1), the filter element comprises a plurality of cylindrical first filter element sections (2) and a plurality of cylindrical second filter element sections (3), the first filter element sections (2) are formed by spirally curling crepe paper from inside to outside, and the second filter element sections (3) are formed by spirally curling crepe paper from inside to outside. A cavity section (4) is arranged between the first filter element section (2) and the second filter element section (3) at an interval, the first filter element section (2), the cavity section (4) and the second filter element section (3) are arranged in sequence, and after the first filter element section (2), the cavity section (4) and the second filter element section (3) are cut into the filter tip, each section of the filter tip comprises one section of the first filter element section (2), one section of the cavity section (4) and one section of the second filter element section (3). The contact area between smoke and the surface of crepe paper can be reduced by pushing the paper filter stick at the near lip end inwards, and the suction resistance of the filter stick is reduced. And on the premise of ensuring tar adsorption, the smoking experience feeling is improved.

The invention discloses an auxiliary feeding device for paper filter sticks, and belongs to the technical field of filter stick production feeding. The device comprises a bearing mechanism which comprises a bearing frame and a support installed on the bearing frame, and an inclined high-pressure nozzle is installed on the support; the carding part is installed on the support and located above the high-pressure nozzle, the carding part is located on the inclined axis of the high-pressure nozzle, and the paper tape penetrates through the high-pressure nozzle to be wound on the carding part so as to be sorted and preliminarily gathered. A plurality of paper tapes can be gathered after passing through the carding part, the paper tapes can be prevented from floating, swinging, high-frequency shaking and even wrinkling under the influence of airflow, the feeding stability of the paper tapes is improved, the plurality of paper tapes can be gradually gathered together in the continuous moving process in the gathering mechanism, and therefore after the subsequent paper tapes enter a cigarette gun, the paper tapes can be separated from the cigarette gun. And the problems that the density of the formed paper tape is not uniform and the compactness is not enough can be well avoided.

The utility model discloses an elevator lubrication station frequency conversion speed regulation flow control device which comprises a lubrication station, the lubrication station is connected with a speed reducer through a lubricating oil pipeline, the lubrication station comprises an oil tank, and a gear oil pump, a safety valve, a motor, a one-way valve, an electric contact thermometer, an electric heater, a gate valve and a liquid level meter are installed on the oil tank. A return oil filter is installed in the oil tank, an air filter located above the return oil filter is installed on the oil tank, the safety valve extends into the oil tank through a lubricating oil pipeline, the oil tank is connected with the electric contact pressure gauge through the lubricating oil pipeline, and a gear oil pump penetrating out of the oil tank is installed on the motor. The gear oil pump is connected with a paper oil filter through a one-way valve, the oil tank is connected with the cooler through a lubricating oil pipeline, the motor is electrically connected with a variable-frequency speed regulation device with a flow closed loop, the variable-frequency speed regulation device is electrically connected with a PLC, and the PLC is electrically connected with an intelligent control instrument. Flow closed-loop regulation is achieved, and safe operation of the speed reducer is ensured.

The application discloses a hanging ear labeling machine and belongs to the technical field of hanging ear coffee manufacturing equipment. The hanging ear labeling machine comprises a box body, an ear piece film frame assembly, a waste material collecting assembly, a cutter die assembly, a film and ear piece feeding assembly, a sealing assembly, a cutting assembly, a film placing and collecting assembly and a film pulling assembly are arranged on the box body. A label paper roll is arranged on the ear piece film frame assembly. The cutter die assembly cuts the label paper into hanging ear-shaped label paper and continuous waste label paper. The film placing and collecting assembly is used for feeding the un-labeled paper filter roll into the film and ear piece feeding assembly and for winding the labeled paper filter roll onto a material collecting roll. The film and ear piece feeding assembly is used for feeding the un-labeled paper filter roll and the label paper into the sealing assembly. The sealing assembly extrudes and adheres the hanging ear-shaped label paper to the surface of the un-labeled paper filter roll after heating to form a labeled paper filter roll, which is convenient for subsequent sealing to form a pocket with a hanging ear, and finally, coffee powder is filled into the pocket to form a hanging ear coffee.

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.

The invention discloses a paper filter stick forming device and a manufacturing method of a paper filter stick, relates to the field of tobacco production, and solves the problems of positioning deviation, untight fitting and the like in the process of producing a paper filter stick through a forming machine, so that the working procedure efficiency and the qualified rate of products are very low. The invention relates to a paper filter stick forming device, which comprises a nozzle, a paper filter stick forming device and a paper filter stick forming device, the winding part comprises a supporting seat, a rotating wheel and a paper disc, a conveying through hole is formed in the supporting seat, the nozzle faces the conveying through hole, so that a paper material strip output by the nozzle can penetrate through the conveying through hole to be conveyed, the rotating wheel is arranged on the supporting seat, the paper disc is fixed to the rotating wheel, and forming paper is arranged on the paper disc; the rotating wheel is used for driving the paper disc to rotate around the conveying through hole on the supporting base, so that the forming paper on the rotating wheel is spirally wound around the paper material strip. The main purpose is to improve the production efficiency of the paper material filter stick by improving the hardness and roundness of the paper material filter stick.

The utility model relates to the field of filter element assembly, in particular to a paper element feeding device of paper filter element assembly equipment. Comprising a support frame; the feeding conveying belt mechanism is fixedly connected to the supporting frame and comprises a first conveying belt and a second conveying belt, the conveying directions of the second conveying belt and the first conveying belt are opposite, and connecting platforms are arranged between the two ends of the first conveying belt and the two ends of the second conveying belt; each jig frame comprises a moving table and a paper core groove, and the jig frames are placed on the conveying belt; the reversing mechanisms are arranged on the two sides of the two ends of the feeding conveying belt mechanism and comprise reversing push rods used for pushing the jig frame to the conveying belt on the far side; the reversing optical fiber probe is used for detecting whether a jig frame is arranged in front of the reversing push rod or not and controlling the reversing push rod to work; the jig frames can be recycled, and the number of the jig frames can be increased according to needs.

The utility model provides a waterwheel type negative pressure dust collecting and filtering device which comprises a water collecting box, a paper filtering box, a waterwheel type wheel set, a filtering water box and a dust collecting hopper, the paper filtering box communicated with the water collecting box is arranged on one side above the water collecting box, and the waterwheel type wheel set is arranged above the paper filtering box and comprises an outer box and waterwheel wheels arranged in the outer box. An air inlet and a first liquid inlet are further formed in the outer portion of the outer box, the air inlet is connected with the dust collecting hopper, the waterwheel wheel is driven by a waterwheel motor to rotate, the waterwheel wheel rotates to generate negative pressure to suck dust and steam in the area where the dust collecting hopper is located into the outer box, and the dust and steam are mixed with cutting fluid entering the outer box from the first liquid inlet and then discharged into the filter paper box from the bottom of the outer box; the filter paper box is used for primarily filtering the cutting fluid mixed liquid, and the filter water tank is fixed above the water collecting tank through a support and used for secondarily filtering the cutting fluid. According to the utility model, not only can the cutting fluid of the grinding equipment be filtered and recycled, but also dust and steam in the grinding process can be sucked into the cutting fluid to be filtered.

A double-closure tar reduction filter stick relates to the technical field of cigarettes and comprises a filter element and a wrapping layer (1), the wrapping layer (1) wraps the periphery of the filter element, the filter element comprises a spiral paper filter stick section (2) and a variable-diameter filter stick section (3), the spiral paper filter stick (2) is a cylinder formed by rolling groove paper, the direction of a groove is inclined to the axis, the groove (4) is spirally wound, and the diameter of the spiral paper filter stick section (2) is larger than that of the variable-diameter filter stick section (3). The variable-diameter filter stick section (3) is formed by connecting two cylinders with different diameters, after the filter tips are cut, each filter tip comprises a spiral paper filter stick section (2) and a variable-diameter filter stick section (3), and the small-diameter end of the variable-diameter filter stick section (3) is connected with the spiral paper filter stick. Compared with a traditional composite filter stick, the composite filter stick intercepts air flow at two positions, intercepts more tar, and is better in tar reduction effect.

The invention discloses full-automatic reciprocating type paper folding production equipment and method, and relates to the technical field of paper filter element production. The device comprises a base, a shell is fixedly arranged on one side of the top end of the base, a reciprocating movement assembly is arranged in the shell, two symmetrically-distributed folding assemblies are arranged in the reciprocating movement assembly, a heating and shaping assembly is arranged in the middle of the top end of the shell, and a circulating pre-shaping assembly is arranged between the heating and shaping assembly and the folding assemblies. The circulating pre-shaping assembly is arranged, so that a driving rod drives a piston rod to slide in an inner cylinder in a reciprocating mode, one-way conveying of circulating liquid is formed in cooperation with a one-way valve, and the circulating liquid is heated through residual heat conduction of an electric heating resistance wire in the circulating process and then conveyed into a folding plate to enable the temperature of the folding plate to rise; in the folding process, the folded filter paper is subjected to pre-shaping treatment synchronously, so that fold deviation and rebound caused by external force or self elasticity of the filter paper before the filter paper is conveyed to the heating and shaping assembly are effectively avoided, and the fold stability is remarkably improved.

The object of the invention is a filter paper characterized in that it includes between 70% and 100% by weight of cellulose fibers, wherein between 50% and 75% by weight of the fibers are long fibers, understanding by this fibers that have an average length greater than 2 mm, and between 25% and 50% by weight of the fibers are short fibers, understanding by this fibers that have an average length of less than 2 mm; between 0.1% and 5.0% by weight of sodium carboxymethyl cellulose; and wherein the weight of the filter paper per unit area is between 25 and 55 g / m2, measured according to UNE-EN ISO 536:2013 standard; the density thereof varies between 0.100 and 0.500 g / cm3, measured according to UNE-EN ISO 534:2012 standard in a single sheet; and the porosity of the filter paper is between 1500 and 8500 ml / min·cm2·kPa, measured according to UNE-EN ISO 2965:2019 standard. The paper filter including said filter paper is also an object of the invention.

The utility model relates to the field of filter element assembly, in particular to a multi-station clamping device of paper filter element assembly equipment. Comprising a rotating disc, the rotating disc is controlled by a driving device to rotate intermittently, and a plurality of stations are arranged on the rotating disc in a circumferential array mode; the supporting column is arranged in the center of the rotating disc, and the supporting column is sleeved with the rotating disc; the cam is fixedly connected to the top of the supporting column, and a groove corresponding to at least one station is formed in the peripheral side of the cam; the pneumatic fingers are fixedly connected to the rotating disc and correspond to the stations respectively, and clamping jaws are arranged at the output ends of the pneumatic fingers; the mechanical reversing valve is used for controlling the air inlet direction of the pneumatic finger and comprises a reversing pressing rod; one end of the linkage rod is hinged to the mechanical reversing valve, the other end of the linkage rod abuts against the side face of the cam, and one side of the linkage rod abuts against the reversing pressing rod; according to the utility model, the top cover matched with the paper core can be more conveniently added, and the production quality is higher.

The invention discloses a preparation method of a composite paper filter tip, which comprises the following steps: (1) ultrasonically extracting stem barks of air-cured tobaccos with hot water, and then carrying out solid-liquid separation; (2) performing solid-liquid separation and pulping to obtain bark pulp, and preparing a substrate by adopting a method for preparing reconstituted tobacco by a papermaking method; (3) preparing a coating liquid by using the stem bark paste; (4) spraying the coating liquid on a substrate, then spraying by using a polyvinyl alcohol solution, then coating by using the zeolite composite material, and finally spraying by using the polyvinyl alcohol solution; (5) obtaining a paper filter tip; and (6) compounding to obtain the composite paper filter tip. According to the composite paper filter tip, the sensory quality of cigarettes can be obviously improved, and particularly, the content of nitrosamine in the smoke of the cigarettes can be obviously reduced.

A beverage cap with pressure-activated valve for use with filter presses having a hollow cylinder and removable piston that when pressed forces liquid through the cylinder and beverage cap into an open vessel. Such presses are particularly suited for coffee beverages, especially espresso. The beverage cap includes multiple protrusions that are discontinuous and distributed to improve filter support and distribute pressure more uniformly through the cavity and along the filter, thereby allowing use of thin paper filters and avoiding tearing or blow out. The beverage cap can include a removable valve insert that includes a valve body supporting a movable vale and support members that support the filter at a central valve region, further reinforcing the filter to avoid blow out of paper filters. The beverage cap can include a gasket to enhance air-tight sealing with the cylinder and can include multiple valves for use with oversized presses.

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 application belongs to the technical field of fuel filters, and discloses a high-efficiency diesel filter device driven by a shaft, which comprises a filter main body, a filter rotating assembly and a magnetic shaft coupling assembly; the filter main body comprises a main oil chamber and a power chamber; the filter rotating assembly comprises an iron core frame rotatably arranged in the main oil chamber, and a paper filter element is arranged in the iron core frame, so that diesel oil from the outside is filtered through the paper filter element; the oil path assembly comprises an oil inlet channel and an oil outlet channel, and the oil inlet channel extends into the inner cavity of the paper filter element; the magnetic shaft coupling assembly comprises an electric motor, and the electric motor is drivingly connected with an induction runner, and the induction runner is drivingly connected with the iron core frame through magnetic shaft coupling. The diesel filter device can increase the temperature of diesel oil in the filter, thereby reducing the viscosity of the diesel oil, and the filter rotating assembly can rapidly throw out the diesel oil from the paper filter element through centrifugal action during the rotation process, and agitate the filtered diesel oil towards the oil outlet channel, thereby improving the filtering efficiency of the filter.

The invention relates to the technical field of filter stick processing, in particular to a paper filter stick production hot mold and cold pressing device which comprises a hot mold mechanism and a cold pressing mechanism. The hot mold mechanism is used for non-woven fabric heating and heat preservation, a heat radiation heating component and an electromagnetic heating roller are matched to achieve double-face heating, a material guide roller set and the heat radiation heating component are both slidably connected with a first installation table and driven by an air cylinder, the material guide roller set and the heat radiation heating component move upwards to enable non-woven fabric to be separated from a heating component during shutdown, and the electromagnetic heating roller is driven by a motor and is controllable in temperature. The material guide roller set can guide materials, heat efficiency is improved through downward pressing, the wrap angle is adjusted to control heating time, and different requirements are met; the cold pressing mechanism is used for cold pressing of non-woven fabrics, a fixed roller and a horizontal moving roller are driven by a driving motor to rotate, materials penetrate through the fixed roller and the horizontal moving roller to be embossed, a moving component adjusts the center distance between the horizontal moving roller and the fixed roller to control the embossing depth, and when the moving component is located under the fixed roller, tooth parts are completely meshed and matched to complete staggered tooth embossing.

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.