1348results about "Paper recycling" patented technology

The invention discloses base paper for aluminum spraying and a preparation method thereof, and relates to the technical field of base paper. The preparation method comprises the following steps: pulping softwood pulp, then adding deionized water to dilute the softwood pulp until the mass concentration is 0.8%-1%, then adding modified gel particles, modified bentonite and a PAE wet strength agent, adjusting the pH value to 6.5-7.5, stirring for 40-60 minutes, and then adding deionized water to dilute the softwood pulp until the mass concentration is 0.5%-0.7% to obtain mixed paper pulp; and then making the mixed paper pulp into paper sheets, squeezing, drying, coating the surface layer coating on the surface of base material paper, and drying with hot air to obtain the body paper for aluminum spraying. According to the invention, the modified gel particles and the modified bentonite are added, so that the mildew-proof and moisture-proof capabilities of the base paper for aluminum spraying are effectively improved; the introduction of the surface coating further improves the mildew-proof and moisture-proof capabilities. Therefore, the method has a wider application prospect.

The invention discloses a production process of high-folding-resistance corrugated base paper, and particularly relates to the technical field of corrugated paper production. The process comprises the following steps: mixing and hydraulically pulping different types of waste paper raw materials to obtain original waste paper pulp with the concentration of 2.5-2.8%; original waste paper pulp enters a classifying screen after being subjected to high-concentration sand removal, coarse screening and low-concentration sand removal, and fibers in the waste paper pulp are screened into long fibers and short fibers; mixing the long fiber pulp and the short fiber pulp in proportion, and carrying out papermaking and surface sizing treatment; wherein the papermaking comprises the steps of forming a net part, squeezing and dehydrating, and drying in a pre-drying part to obtain initial corrugating base paper with the dryness of 90-92%, then carrying out surface sizing treatment on the initial corrugating base paper by using a boiled glue solution, drying at 60-100 DEG C until the dryness is 85-92%, and curling and slitting to obtain the high-folding-resistance corrugating base paper. Stable production of the high-folding-resistance corrugated base paper is achieved through raw material diversification, fiber refining treatment, papermaking process flexible regulation and control and glue solution accurate preparation.

The utility model provides pulping equipment. The pulping equipment comprises a circulating tank, a dispersing structure, a stirring paddle and a heat dissipation structure. An accommodating cavity for accommodating slurry is formed in the circulating tank. The dispersing structure is located in the containing cavity and arranged at the bottom of the circulating tank, and the dispersing structure is used for dispersing the slurry and enabling the slurry to circularly flow in the circulating tank. The stirring paddle is contained in the containing cavity and comprises a rotating shaft and wall scraping blades, the rotating shaft extends in the axial direction of the circulating tank, and the wall scraping blades are connected to the rotating shaft and used for scraping off slurry adhering to the inner wall of the circulating tank. The heat dissipation structure is at least partially contained in the containing cavity and used for cooling the slurry. Therefore, slurry adhered to the inner wall of the circulating tank is scraped off through the wall scraping blades, the dirt thermal resistance effect is greatly reduced, the slurry close to the center of the circulating tank is subjected to heat dissipation through the heat dissipation structure, the slurry is subjected to heat dissipation through the heat dissipation structure and the circulating tank together, and therefore the heat dissipation efficiency of the slurry is improved.

The utility model provides a pulp stirring device for tissue production, and relates to the technical field of tissue production, the pulp stirring device comprises a stirring box, a through groove is formed in the top of the stirring box, a partition plate is fixedly installed in the stirring box, a feeding assembly is arranged in the stirring box, and the feeding assembly comprises a connecting block, a connecting groove, a limiting block, a fixing block, a baffle and a spring; the stirring assembly is arranged at the top of the partition plate and comprises a rotating shaft a, a stirring rod a, a rotating shaft b, a stirring rod b, a rotating shaft and a threaded stirring cutter. According to the pulp stirring device for paper towel production, the stirring assembly is far away from the through groove, waste caused by raw material splashing in the feeding process can be avoided, meanwhile, dust and other impurities flying into the stirring device are reduced, the comfort degree of paper towel use is improved, by arranging the stirring assembly, when raw materials are stirred into pulp, the raw materials start to be stirred from bulk raw materials, and the stirring efficiency is improved. The pulping time is shortened, and the quality requirement of paper pulp can be quickly met.

The invention relates to the technical field of papermaking wastewater treatment, in particular to a waste pulp residue treatment device for raw paper production, which comprises waste pulp treatment equipment for raw paper production, the waste pulp treatment equipment comprises a treatment tank, and the top side of the treatment tank is provided with automatic adding equipment matched with a stirring assembly for use. And driving equipment matched with the automatic adding equipment for use is mounted on the side wall of the treatment tank. According to the waste pulp residue treatment device for raw paper production, the stroke of driving equipment is prolonged, the displacement of the sliding frame is increased, so that the sliding base is pushed to act, the lifting table is actively triggered to ascend and descend through the connecting rod, the dosing action and the stirring strength are dynamically bound, automatic dosing is achieved when the stirring requirement is high, and invalid dosing is avoided; in addition, the lifting platform drives the stirring rod to rotate and axially reciprocate, waste slurry fiber agglomerates are effectively scattered, precipitation prevention is achieved, meanwhile, longitudinal eddy current can be formed through axial reciprocating of the stirring rod, agent diffusion is enhanced, the mixing efficiency is improved, the reaction period is shortened, and energy loss is reduced.

The paper pulp dewatering device comprises a water collecting tank, a filter screen cylinder is rotationally connected to the upper portion of the interior of the water collecting tank through a bearing, a first rotating rod is arranged in the filter screen cylinder, and one end of the first rotating rod penetrates through the filter screen cylinder and is connected with a first motor; an external gear is connected to the outer side of one end, close to the first motor, of the filter screen cylinder, and a second gear is meshed above the external gear; through rotation of the dewatering blades and the filter screen cylinder, the filter screen cylinder and the dewatering blades can be fully cleaned, cleaning dead angles are avoided, the filter screen cylinder and the dewatering blades can be rapidly cleaned, the cleaning effect is improved, the cleaning efficiency is improved, and workers do not need to conduct external auxiliary cleaning; a third motor drives a reciprocating screw rod to rotate, and the reciprocating screw rod rotates to drive a mounting shell and a brush to reciprocate on the outer side of the filter screen cylinder, so that the outer side of the filter screen cylinder can be fully cleaned.

The invention discloses automatic auxiliary material attaching equipment, and relates to the technical field of auxiliary material attaching, and the automatic auxiliary material attaching equipment comprises a bottom plate; the auxiliary material feeding unit is used for driving feeding according to a preset track, by arranging the auxiliary material feeding unit, the sticker rolls can be placed, the sticker rolls with different widths and diameters can be clamped, and the situation that the discharging effect of stickers is affected along with consumption of the sticker rolls and loosening of the sticker rolls is prevented; the auxiliary material feeding unit is used for pulling the stickers to move, the sticker scraping mechanism is used for separating the stickers from paper tubes, the first connecting frame is welded to the lower surface of the sticker scraping mechanism, and the sticker scraping mechanism is arranged, so that when the auxiliary material feeding unit pulls the stickers to move, the stickers and roll paper can be separated, and waste paper rolls can be guided; enabling the waste paper roll to flow to the auxiliary material feeding unit; and the material taking unit is used for adsorbing and attaching the stickers, so that the effect of automatically attaching the stickers to the outer surfaces of the parts is achieved.

The invention discloses an chemi-mechanical pulp production method capable of improving the filtration property of chemi-mechanical pulp, and relates to the technical field of papermaking, high-concentration grinding freeness is optimized to 640 + / -30ml, pulp fine fibers can be controlled at 22%-33%, the tensile index middle-lower limit and the bulk middle-upper limit, the high-concentration grinding effect is improved, the effect between fibers is facilitated, the effect between the fibers and a grinding sheet is reduced, and the filtration property of the chemi-mechanical pulp is improved. Fiber cutting is reduced, and the content of pulp fine fibers is reduced; the MSD torque is increased to 250 + / -10 KNM, the tearing effect of wood chips is improved, the preimpregnation reaction of the wood chips is facilitated, the original fine content is controlled to 26%-29% from original 22%-33%, the pulp bulk is increased by about 0.1 cm < 3 > / g, and the tensile index is increased by 1.0 N.m / g; the four low-concentration grinders are changed into parallel connection, so that the residence time of pulp in the low-concentration grinders is prolonged, the cutting effect of the pulp ground by the low-concentration grinders on fibers is reduced, light friction between grinding sheets and the fibers is increased, fibrillation of the fibers is facilitated, the bulk and the tensile strength are improved to a certain extent, and under the content of fine fibers, the size of the fibers is reduced. And the bulkiness and the tensile index of the finished pulp are also improved to a certain extent.

The present application relates to pulping technology field, the present application provides a kind of high-strength high-cleanliness chemical pulp's pulping process, with bamboo willow edge scrap as fiber raw material, after 1 stage pre-steaming, chip washing, dehydration, 2 stage pre-steaming;The wood chip material after 2 stage pre-steaming is 1 stage extrusion and is dissolved, 1 stage chemical liquid pre-impregnation, 2 stage extrusion and is dissolved, 2 stage chemical liquid pre-impregnation;1 stage chemical liquid pre-impregnation uses sodium hydroxide solution and does not use hydrogen peroxide, the chemical reagent of 2 stage chemical liquid pre-impregnation process is sodium hydroxide, hydrogen peroxide and sodium silicate;Material after 2 stage chemical liquid pre-impregnation is 1 stage refining, separation, cooling, 1 stage high-concentration bleaching, 1 stage dehydration, 2 stage high-concentration bleaching, 2 stage dehydration;Pulp after 2 stage dehydration is latent, refining etc., and the finished product is prepared.This application process can produce high-strength, high-cleanliness chemical pulp, and the pulp cost is lower, and the pulp quality is better, and it is beneficial to high-end cultural paper etc. application.

The technical purpose of the utility model is to provide the rotary paper processing device which can uniformly distribute paper scraps in the paper shredding container while shredding paper. Comprising a paper shredding cutter set, the paper shredding cutter set is driven by a motor and arranged in a face cover, a shell is arranged below the face cover, a rotating container is arranged in the shell, and a rotating device is arranged below the rotating container. Paper scraps are uniformly stacked in the container, so that the space of the container is utilized to the maximum extent; the method is suitable for office environments.

The utility model discloses a pulping device for corrugated board production, which is characterized in that a placing box is fixedly arranged at the bottom of a pulping cylinder, an auger is rotatably arranged in the middle of the bottom of an inner cavity of the pulping cylinder, and a plurality of first crushing knives for crushing waste paper are uniformly and fixedly arranged on the outer wall of the auger; the utility model relates to the technical field of corrugated board production. According to the pulping device for corrugated board production, through mutual cooperation of L-shaped pipes, an arc-shaped pipe, a first spray nozzle assembly and a second spray nozzle assembly, when waste paper subjected to preliminary crushing falls into a pulping barrel and passes through the four L-shaped pipes, targeted water spraying can be conducted on the passing waste paper, pre-wetting is achieved, the waste paper subjected to pre-wetting continues to fall, and the waste paper is prevented from being damaged. The waste paper falls into the bottom of the inner cavity of the repulping cylinder and then is wetted again by water sprayed by the second nozzle assembly, so that water can be uniformly sprayed to each area of the surface of the waste paper, the waste paper is fully wetted, the softening effect is improved, and the subsequent repulping effect is guaranteed.

The invention is suitable for the technical field of slurry making and ore separating devices, and provides a mining wet-type screening slurry making and ore separating device which comprises an ore feeding machine, a wet-type screening machine, a slurry making machine and an ore separating machine. The slurrying machine is composed of a slurrying frame, a slurry feeding cylinder, a slurrying cylinder, a slurry discharging cylinder, a connecting cylinder, a rotating mechanism, a screw rod, a control mechanism, a rotating cylinder, an arc-shaped guide vane, a homogenizing paddle, an adjusting mechanism and a control system, the arc-shaped guide vane is an inwards-concave arc-shaped vane, the concave surface of the arc-shaped guide vane faces the slurry feeding direction, and the homogenizing paddle is a rectangular paddle; the adjusting mechanism is matched with the rotating mechanism, the control mechanism and the screw rod to change the inclination angles of the arc-shaped guide vanes and the homogenizing paddles, the arc-shaped guide vanes and the homogenizing paddles realize accurate regulation and control on the ore pulp concentration in a manner of rotating and changing the inclination angles, and when the inclination angles are reduced, the retention time of the ore pulp is prolonged; and when the inclination angle is synchronously increased, the retention time of the ore pulp is shortened, and the mixing concentration of the ore pulp is reduced.

The invention discloses a two-stage slag separator tailing diluting and re-screening device, which relates to the technical field of tailing screening, and comprises a box body, a first screening cavity, a diluting cavity and a second screening cavity, a first screening assembly and a second screening assembly are arranged on the box body; the first screening assembly comprises a first connecting seat, a first screening seat, a first synchronous belt structure and a screening mesh belt; heavy impurities in tailings are screened through the arranged diluting assembly and the arranged first screening assembly, light impurities in the tailings are screened through cooperation of a first screening base, a first synchronous belt structure, a screening net belt and a liquid guide pipe, and the impurities are collected through cooperation of a negative pressure suction nozzle, a negative pressure pipe, negative pressure equipment and a collecting tank; according to the screening device, the supporting plate, the filtering base, the filtering piece, the filtering plate, the first air guiding piece, the second air guiding piece and the driving motor are arranged, collected impurities are cleaned, the first screening assembly does not need to be stopped, the screening effect of the first screening assembly is improved, and the using effect of the screening device is improved.

The application discloses a kind of perishable garbage vertical pulper, it is related to garbage processing field, including vertical pulper main body, top of vertical pulper main body is opened feed inlet, top cover is installed on feed inlet, driving motor is equipped below vertical pulper main body, motor shaft of driving motor is inserted into vertical pulper main body inner cavity, for connecting driving rotating knife arranged at the bottom of vertical pulper main body inner cavity, guide vane is fixed on the inner wall of vertical pulper main body, and perishable garbage can be layered;Discharge outlet for discharging slurry is opened on the inner wall of vertical pulper main body, and slag discharge port is opened at the bottom of vertical pulper main body inner cavity for heavy slag discharge.The application is arranged in pulper inner cavity bottom with rotating knife, vortex is generated in perishable garbage when rotating, according to the principle of hydraulic vortex, the bag of perishable garbage is broken, organic matter is pulped, impurities are separated, the broken particle is finer, the efficiency is higher, the problem that existing pulper is easy to block and rotating knife service life is short is solved.

The present invention relates to a barrier paper or barrier film for a food or liquid packaging laminate, said barrier paper or barrier film comprising: a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from used beverage cartons (UBC), and a polymeric gas barrier coating disposed on at least one side of the substrate layer.

The utility model provides pulping equipment. The pulping equipment comprises a circulating tank, a guide cylinder and a dispersing device, the circulation tank is used for containing slurry. The guide cylinder is arranged in the circulating tank, a containing cavity is formed in the guide cylinder, the outer wall of the guide cylinder and the inner wall of the circulating tank are spaced to form a guide channel, and an extension plate is arranged on the inner wall of the guide cylinder and extends in the radial direction of the guide cylinder. The dispersing device is at least partially located between the bottom of the guide cylinder and the bottom wall of the circulating tank, the dispersing device is provided with a flow inlet and a flow outlet, the flow inlet is located in the side, close to the bottom of the guide cylinder, of the dispersing device and communicated with the containing cavity, the flow outlet is located in the peripheral side of the dispersing device and communicated with the guide channel, and the dispersing device is used for dispersing the slurry. Therefore, the dispersing device can disperse and circulate the slurry in the circulating tank, and the slurry is rectified through the extension plate to flow towards the dispersing device, so that the structure of the pulping equipment is simplified, and the occupied space of the pulping equipment is reduced.

The invention provides a system for purifying stickies in pulp of a deinking pulp line, which relates to the technical field of papermaking industry and comprises a repulping carrying cylinder and a cleaning assembly, a treatment cavity is formed in the repulping carrying cylinder, a cleaning assembly is arranged in the treatment cavity, and the repulping device is characterized in that the cleaning assembly comprises a rotating supporting cylinder, the rotating supporting cylinder is rotationally installed in the middle of the treatment cavity, the outer side of the rotating supporting cylinder is fixedly connected with a connecting belt shaft, and the outer side of the connecting belt shaft is fixedly connected with a repulping cutter; the two-way lead screw is rotationally installed in the rotating supporting cylinder, one end of the two-way lead screw is fixedly connected with a rotating handle, and the outer side of one end of the rotating supporting cylinder is fixedly connected with a limiting angle block; the cleaning assembly is arranged, the cleaning assembly and the slurry are mechanically linked through adjustment, attached sticky substances and residual slurry are efficiently scraped through mechanical scraping, the cleaning efficiency is greatly improved, bacterium breeding caused by slurry residues can be eradicated, and it is guaranteed that follow-up slurry quality is not polluted from the source; and dual optimization of production efficiency and cleaning maintenance is realized.

The present invention discloses an environmentally friendly gift box production cardboard waste recycling shredder and a method for using the same. The shredder comprises a shredder body and a shredding chamber. The shredder body is provided with a shredding chamber at the upper end thereof, a feed port at the upper end thereof, a water storage chamber at the lower end thereof, a power box bolted to the left end of the shredder body, a transmission motor mounted at the upper end thereof, and a shredding shaft disposed within the shredding chamber. The environmentally friendly gift box production cardboard waste recycling shredder and a method for using the same, by providing a water spraying structure, can simultaneously spray water during the shredding process to moisten the cardboard fertilizer, thereby improving the shredding effect. The shredding process can also prevent the generation of large dust that would otherwise affect the environment, thereby being more environmentally friendly. Furthermore, after shredding is completed, the cardboard scraps can be squeezed and dehydrated, and the water can be recycled, thereby reducing the waste of water resources. Furthermore, the squeezed and dehydrated cardboard scraps are easier to handle.

The utility model provides a paper pulp extrusion papermaking device, and belongs to the technical field of papermaking. Comprising a base mounting frame, a hydraulic push rod is mounted above the base mounting frame, and an extrusion head is connected to the top end of the hydraulic push rod. Through the arrangement of the processing mechanism, a worker places paper pulp needing to be extruded in the processing box in advance, the extrusion head is driven by the hydraulic push rod to extrude the paper pulp, and after extrusion processing is completed, when the worker needs to process the paper pulp splashed on the inner wall of the processing box, the extrusion head is driven by the hydraulic push rod to extrude the paper pulp. The electric push rod can be started in advance to enable the top end of the electric push rod to be connected with the scraping frame to be separated from the embedded groove formed in one side of the inner side of the storage box, and then the motor is started to enable the transmission rod and the driving gear to rotate. Therefore, the gear ring can drive the rotating ring frame fixed in the middle of the gear ring to be matched with the sliding block and the sliding frame to conduct circumferential movement in a guiding mode, and therefore the scraping frame can be indirectly driven to conduct paper pulp scraping treatment along the inner side of the containing box.

The utility model discloses a paper pulp preparation device which comprises a dissolving tank, a constant volume tank, a white water tank and a mixing and dissolving tank, the dissolving tank, the constant volume tank and the mixing and dissolving tank are respectively provided with a liquid outlet, the liquid outlet of the dissolving tank is communicated with the interior of the constant volume tank, a first valve is arranged at the communication position, the liquid outlet of the constant volume tank is communicated with the interior of the mixing and dissolving tank, and a second valve is arranged at the communication position. The white water tank is provided with a water outlet, the water outlet of the white water tank is communicated with the dissolving tank and the constant volume tank, a third valve is arranged at the communication position, a liquid outlet of the mixing and dissolving tank is communicated with the paper machine, a fourth valve is arranged at the communication position, and the dissolving tank is used for adding papermaking filler and white water for pre-dissolving to prepare a filler solution; the constant volume tank is used for adding a filler solution and white water to make the volume of the filler solution constant to a preset concentration, and the mixing and dissolving tank is used for adding papermaking fibers and the constant-volume filler solution and uniformly mixing to prepare paper pulp, so that the papermaking filler, the papermaking fibers and the white water can be conveniently and continuously uniformly mixed to obtain the paper pulp.

The utility model belongs to the technical field of sizing agent production, and particularly discloses vacuum defoaming and stirring equipment for producing novel sizing agent in pulp, which comprises a bottom plate, a placing base is connected to the middle of the upper end of the bottom plate, a stirring barrel is connected to the upper end of the placing base, and hydraulic cylinders are uniformly connected to two sides of the upper end of the bottom plate. According to the vacuum stirring device, gas in the stirring barrel is extracted in the stirring process, vacuum operation can be carried out on the interior of the stirring barrel in multiple directions through the arranged fixing pipes, the vacuum efficiency is high, meanwhile, the gas inlets of the fixing pipes are protected, and the stirring barrel is not prone to falling off. According to the stirring device, raw materials are prevented from entering the fixing pipe to block the fixing pipe, the stirring barrel can be conveniently replaced and cleaned, meanwhile, the outer side of the stirring barrel can be supported and fixed, and the situation that the stirring barrel displaces or shakes during processing inside the stirring barrel, gas enters the stirring barrel, and the vacuum environment in the barrel is affected is avoided.

The present invention relates to a decorative paper or film for a food or liquid packaging laminate, said decorative paper or film comprising: a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from used beverage cartons (UBC), and 1-30 wt% precipitated calcium carbonate (PCC).

The utility model discloses a pulping device for production raw materials of packaging color boxes, which relates to the technical field of pulping of raw materials of color boxes and comprises a tank body, a support is fixedly connected to the lower portion of the outer surface of the tank body, and a supporting plate is fixedly connected to the inner surface of the support. A stirring device is jointly arranged on the top surface of the supporting plate and in the tank body and comprises a fixing box, a rotating shaft movably penetrates through the outer surface of the fixing box, a fixing plate is fixedly connected to the upper portion of the inner wall of the tank body, and the top end of the rotating shaft is rotationally connected with the middle of the bottom surface of the fixing plate; the lower portion of the outer surface of the rotating shaft is fixedly sleeved with a first bevel gear, the outer surface of the first bevel gear is connected with a second bevel gear in a meshed mode, and the outer surface of the rotating shaft is fixedly sleeved with blades. Raw materials can be stirred and beaten into paper pulp, and the beaten paper pulp can be poured out.

The utility model discloses a waste paperboard crushing and stirring device which comprises a machine body, a stirring device, a stirring device, a stirring device and a stirring device. The top of the machine body is provided with a feeding port, and the bottom of the machine body is provided with a discharging port; the crushing mechanism is arranged in the machine body, the crushing mechanism is located below the feeding opening, and the crushing mechanism is used for crushing waste paperboards; the eddy current separation mechanism is arranged below the crushing mechanism, and the eddy current separation mechanism is used for separating metal on the waste paperboards; and the stirring magnetic attraction mechanism is located below the eddy current separation mechanism, and the stirring magnetic attraction mechanism is used for stirring the crushed waste paperboards and removing iron metal on the waste paperboards, so that efficient crushing of the waste paperboards and thorough removal of metal impurities are achieved.

The utility model discloses a paper pulp tank cleaning device, which belongs to the technical field of cleaning devices and comprises a paper pulp tank and a plurality of supporting columns for supporting the paper pulp tank, and further comprises an annular mounting seat arranged on the top surface of the paper pulp tank, and a cleaning mechanism and a fixing mechanism matched with the cleaning mechanism are arranged on the annular mounting seat. The fixing mechanism comprises an annular guide rail and two mounting pipes which are fixedly arranged on the top surface of the annular mounting base, the annular guide rail is annular, the mounting pipes are symmetrically distributed, the shell is mounted on the annular guide rail and the mounting pipes through the arrangement of the cleaning mechanism and the fixing mechanism, and then the annular guide rail and the mounting pipes are fixed to the annular mounting base; the shell is driven by the driving part to move on the mounting pipe and the annular guide rail, the inner wall of the paper pulp tank can be cleaned through the automatic telescopic rods on the shell, the inner wall of the paper pulp tank can be cleaned up in the shell moving process through the automatic telescopic rods when the shell moves, and the inner wall of the paper pulp tank is effectively cleaned up.

The utility model relates to the technical field of decorative paper production, in particular to slurry treatment equipment for decorative paper production, which comprises a mixing box, a plurality of protective covers are fixed on the outer bottom wall of the mixing box, and an air bag column is communicated and hermetically fixed on the bottom wall of the mixing box in each protective cover. Each protective cover is fixedly provided with an air guide pipe in a communicating mode, a flow dividing pipe is jointly fixed to the multiple air guide pipes, and the flow dividing pipe is fixedly provided with a ventilation pipe in a communicating mode. When the slurry mixing device is used, slurry in the mixing box can be mixed, and the plurality of air bag columns are soft, so that long fibers in the slurry cannot be broken in the mixing process, and the toughness of decorative paper subsequently processed by the slurry is further ensured.

A defibering and deflaking pulper has a defibering rotor-stator pair and a deflaking rotor-stator pair for processing a fiber-based material into smaller pieces. The defibering and deflaking pulper creates an impeller-produced vortical circulation that pulls the material through a defibering rotor-stator interface, where the material is broken down into smaller pieces, and then through a deflaking rotor-stator interface, where the smaller pieces are broken down into even smaller pieces. The defibering and deflaking pulper accumulates the defibered and deflaked material that passes through the defibering rotor-stator interface and the deflaking rotor-stator interface for further processing. This combination of defibering and deflaking in the defibering and deflaking pulper reduces plugging from larger pieces of the material and reduces downstream processing of the material, thus increasing productivity and reducing costs.

The present application belongs to the technical field of packaging carton processing and manufacturing, and particularly relates to a paper box processing waste cleaning top needle storage and replacement device. The paper box processing waste cleaning top needle storage and replacement device comprises a support plate, a waste cleaning belt is arranged on the inner side of the support plate, and a waste cleaning needle is arranged on the waste cleaning belt. The support plate is fixed with a collecting box in the waste cleaning belt. A waste cleaning needle lifting wheel is arranged above the collecting box. The waste cleaning needle lifting wheel is installed on a cylinder. The cylinder is fixed to the end of the support plate through a cylinder rod. The paper box processing waste cleaning top needle storage and replacement device has the advantages that the fixed waste cleaning needle can be quickly removed and automatically stored, and the structure is simple, convenient for workers to operate, and high in disassembly and assembly efficiency. The device is suitable for waste cleaning work of different paper boxes.

The application discloses a kind of aerodynamic feed dual-disc refiner, including machine body, casing, machine cover, rotating disc, fixed disc, casing is connected with machine body, machine cover, inlet two, discharge port are equipped on casing, fixed disc includes fixed disc one, fixed disc two, spring return device includes spring return device one, spring return device two, fixed disc one is connected with spring return device one, fixed disc two is connected with spring return device two, spring return device one is connected with machine cover, spring return device two is connected with casing, casing and machine cover form airtight refiner chamber, rotating disc is connected with main shaft, machine cover is equipped with air inlet one, drain one, casing is equipped with air inlet two, drain two, fixed disc one and machine cover form air chamber one, fixed disc two and casing form air chamber two, air chamber one, air chamber two are connected with gas source, the present application pressure and pulp pressure self-balancing ensure that the gap of two sides of grinding piece is consistent, force is same, output pulp beating degree is consistent, pulp quality is good, prolongs the service life of grinding piece, reduces use cost.