1121 results about "Pulp (paper)" patented technology

The invention discloses a compostable and reslurrable mineral-based dual-scale barrier coating as well as preparation and application thereof, and belongs to the technical field of water-based and reslurrable barrier materials. In order to overcome the defects of high coating weight, large color difference or difficulty in recovery in the prior art, a compact barrier is constructed through double-scale collaborative design of interlayer intercalation of layered double hydroxides and interparticle metal micro-networks. The method has the prominent advantage that high-efficiency water-oxygen barrier better than that of a conventional scheme can be realized only by using an extremely low coating amount. Meanwhile, the coating strictly controls color difference to maintain high whiteness of the paper, has pH responsiveness, can be quickly unlapped and dispersed under an acidic condition, and is easy to re-pulp. The coating does not contain PFAS and PVDC, and unification of high barrier, high whiteness and recoverability is achieved.

The invention discloses a bacteriostatic and antiviral bamboo pulp paper-based sanitary isolation bag as well as a preparation method and application thereof, and belongs to the field of functional paper-based packaging materials. The isolation bag takes bamboo pulp fiber paper as a base material, and the surface of the isolation bag is coated with a water-based polyhydroxyalkanoate functional coating. According to the preparation method, a special polyphenol derivative-chitosan quaternary ammonium salt-nano zinc oxide organic-inorganic hybrid factor is introduced, and the problem of agglomeration of nano particles is effectively solved by utilizing the special bridging effect of polyphenol, so that high-density cation capture and oxidation inactivation sites are constructed on the surface of the coating. Compared with the prior art, the method has the advantages that the method does not need to depend on organic fluorine compounds, and the excellent waterproof and oil-proof barrier effect and the efficient inactivation of viruses can be achieved only through the extremely low coating amount. In addition, the isolation bag has unique environmental chemical responsiveness, can be efficiently dissociated under the alkaline condition to facilitate repulping recovery, can be completely biodegraded in the natural environment, and perfectly considers the requirements of biological safety protection and green environmental protection.

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 discloses a silica powder modified paperboard material of embossed frame paper for cigarettes and a preparation method of the silica powder modified paperboard material, and belongs to the field of advanced inorganic non-metallic materials. The material comprises bleached chemical wood pulp, core-shell structure in-situ modified nano silicon micropowder, an auxiliary agent and a latent temperature-sensitive cross-linking agent, a modification system contains a compound silane coupling agent and amino modified organosilane, and a dual network of static triple cross-linking and dynamic secondary cross-linking is formed; the nanometer silicon micro powder is of a core-micro-nano protrusion-shell multilevel structure, a shell layer is thermoplastic resin containing latent epoxy groups, and a double-peak particle size distribution design is adopted. The preparation process is realized through in-situ generation modification, high-speed shearing fusion and an embossing-shaping integrated closed-loop control process, and is adaptive to an existing fourdrinier papermaking production line. The product quantification is 210-220 g / m < 2 >, the transverse stiffness is larger than or equal to 210 mN.m, the embossing retention rate is larger than or equal to 99.5%, after 50 cycles at the temperature of-5 DEG C-40 DEG C and the humidity of 30%-80%, the stiffness is reduced by smaller than or equal to 3%, the barrier property is reduced by smaller than or equal to 6%, the printing adsorption uniformity error is smaller than or equal to 3%, and the barrier property and the environmental protection property are excellent. The method solves the problems of agglomeration, embossing resilience, multi-performance contradiction, poor environmental stability and other pain points of conventional modified filler, realizes the cooperation of low quantification and high performance, conforms to the high-end and green requirements of the tobacco industry, can pass the application of strategic emerging industry priority review channels, and has a wide application prospect.

The invention relates to a method for manufacturing SCK paper having a basis weight in the range of 50 to 100 g / m2, wherein an optimal combination of nonrecycled BCP, BCTMP and recycled pulp obtained from release liner supercalendered Kraft paper is used to adjust the properties of the fiber furnish. While the use of BCTMP enables a product having a higher bulk, the recycled pulp component, which has high compatibility with the paper manufacturing process, enables to balance the manufacturing process and reduce the dimensional changes and shrinkage of the formed SCK paper. The combined presence of the BCTMP and the recycled pulp component in the fiber furnish improves the water removal from the fibers during the SCK paper manufacturing, while the presence of non-recycled BCP produced from softwood improves the formation and runnability of the paper web on the paper machine. This enables to produce SCK paper with improved sustainability, wherein the density may be controlled by means of the fiber furnish, without downgauging and without adverse effects to other paper properties, which would prevent the use of the SCK paper as substrate layer in a release liner.

A method, system, and computer program product are described capable of controlling an industrial based chemical process through accessing sensor data, pre-processing accessed sensor data through an automated process, forming an initial prediction model of the chemical process, and automatically determining linearity or non-linearity of the initial prediction model. As a function of quantitatively measured linearity, being non-linear, quasilinear, or linear, automatically train the initial prediction model, then deploy the trained prediction model in a manner that controls the subject chemical process at the industrial plant, including optimizing consumption of a certain resource. Data-driven modeling of non-linear, continuous-like industrial or chemical processes results.

The invention discloses a method for solving linting and dusting during paperboard printing, and belongs to the technical field of papermaking. Comprising the following detailed steps: a slurry preparation process, surface sizing treatment and a drying and curing process, in the slurry preparation process, various high-quality fiber raw materials are carefully selected and mixed, the proportion of various fibers is accurately controlled according to the expected performance and quality requirements of the paperboard, and meanwhile, a proper amount of auxiliaries are added; and the binding force between the fibers and the strength of the paper are enhanced. The raw material ratio in the paperboard production process is precisely regulated and controlled, the specially-made composite surface sizing agent is adopted for surface treatment, and scientific and reasonable drying and curing processes are matched, so that the problems of linting and powdering of the paperboard in the printing process are effectively solved, and the printing quality and the production efficiency of the paperboard are improved.

The invention discloses a paper-based molded coffee capsule capable of being naturally composted, a PHA aqueous dispersion in-situ film forming barrier heat-sealing composite layer, a preparation method and application thereof, and belongs to the field of degradable packaging and single-cup extraction capsules. The capsule body is formed by molding paper pulp and is provided with a side wall, a bottom wall and a mouth flange; the biodegradable polyester-based film sealing component is connected to the flange in a sealing manner; and the polyhydroxyalkanoate barrier heat-sealing composite layer covers the inner surface of the body and the sealing surface of the flange. The composite layer is obtained by in-situ film forming of a particle size gradient double-layer aqueous dispersion and comprises a permeation anchoring layer located in paper pulp pores and a continuous compact layer located on the outer side in the thickness direction. The flange is a hot-pressing densified area, and a local thickening heat sealing ring is formed on the sealing face of the flange. Through physical anchoring of the small-particle-size components and surface film forming of the large-particle-size components, the moisture and oxygen blocking and interface bonding performance is achieved, and the brewing sealing performance is guaranteed.

The invention provides a cigarette case and a manufacturing process thereof. The cigarette case comprises a case body and a case cover comprising a damp-proof layer or a moisture-proof layer, whereinthe case body is made of paper pulp raw materials or plant fibers, a waterproof film is pasted to the outer surface and / or the inner surface of the case body, and the waterproof film can be attached to the outer surface and / or the inner surface of the case body in a hot melting manner. According to the cigarette case, excellent moisture resistance can be guaranteed while environment-friendly materials are used. Through the hot melting manner, tight fitting and wrapping of the case body by the waterproof film can be ensured.

The invention discloses environment-friendly degradable forming paper with self-cleaning and oil-proof functions for cigarettes and a preparation method of the environment-friendly degradable forming paper. The forming paper is composed of bamboo pulp base paper, a composite oil adsorption resisting layer and a biological source super-hydrophobic coating. In the middle layer, polylactic acid emulsion is matched with diatomite and activated carbon to form a microporous network, and the pore diameter peak value is 50-150 nm to inhibit oil seepage; the outer layer is formed by compounding vegetable wax, AKD, chitosan and double-particle-size SiO (10-20 nm and 120-280 nm), and surface layer particle enrichment and a thickness-direction asymmetric structure are achieved through wet stacking and wet continuous coating and double-section flash evaporation drying. The structure has the advantages of low surface energy, high hydrocarbon contact angle and good wear-resistant adhesion while keeping degradability and air permeability, and is suitable for the antifouling and cleaning requirements of cigarette appearances.

The utility model discloses a combined paper lunch box in the field of lunch boxes, which comprises an outer hard box body and an inner partition box body arranged in the outer hard box body, and the middle of the inner partition box body is provided with a middle grating for dividing the inner partition box body into a plurality of partition cavities. According to the utility model, the lunch box is arranged into two layers, and the inner layer is provided with the partition cavity and the outer layer is not provided with the partition cavity to form a new lunch box, so that the lunch box not only has a heat insulation effect, but also is more environment-friendly compared with an existing lunch box processed by paper pulp or made of a molding material; the first sealing glue layer and the second sealing glue layer which are made of food-grade hot sealing glue or cold sealing glue are arranged, it can be guaranteed that the first sealing glue layer and the second sealing glue layer can be rapidly pasted together, press-fit combination operation is facilitated, and efficiency is improved.

The application discloses a paper-based moulded coffee capsule capable of natural composting, a PHA aqueous dispersion in-situ film-forming barrier heat-sealing composite layer and a preparation method and application thereof, and belongs to the field of degradable packaging and single-cup extraction capsules. The capsule comprises a capsule body formed by moulded paper pulp, a side wall, a bottom wall and a mouth flange, a biodegradable polyester-based film sealing member sealed to the flange, and a polyhydroxyalkanoate barrier heat-sealing composite layer coated on the inner surface of the body and the sealing surface of the flange. The composite layer is obtained by in-situ film-forming of a particle size gradient double-layer aqueous dispersion, and comprises an infiltration anchoring layer located in the pores of the paper pulp and a continuous dense layer on the outside along the thickness direction. The flange is a heat-pressed densification area, and a locally thickened heat-sealing ring is formed on the sealing surface of the flange. The application realizes the moisture and oxygen barrier and interface bonding performance through physical anchoring of small particle size components and surface film-forming of large particle size components, and guarantees the brewing sealing performance.

The invention provides a structure and a production process of a wet tissue material and a sanitary towel liquid absorption material in the hygienic product industry, and relates to the technical field of hygienic products, the structure comprises a first hydrophilic solvent layer, a first PP melt-blown material layer, a middle functional layer and a second PP melt-blown material layer which are arranged in sequence, and a second hydrophilic solvent layer is further arranged on the outer side of the second PP melt-blown material layer; when the material is a sanitary towel liquid absorption material, the middle functional layer is a mixed layer of a PP melt-blown material, wood pulp and macromolecules; when the material is a wet tissue material, the middle functional layer is a mixed layer of a PP melt-blown material and wood pulp, the proportion of the raw materials can be adjusted, and the middle functional layer is used for manufacturing products such as urine pads, kitchen dry tissues, pet pads and dust-free paper; through the composite structure design of the PP melt-blown material and the wood pulp / wood pulp-macromolecules and the hydrophilic modification treatment of the outer layer, the overall tensile strength is effectively enhanced, and the problem of tearing or layering in use is avoided; the material softness is improved, and the material is more fit and comfortable; the moisture retention performance and the liquid absorption diffusion speed of the material are optimized, it is guaranteed that the wet tissue can keep moist for a long time, and the sanitary towel can rapidly and evenly absorb liquid.

The invention relates to the technical field of manufacturing of coated paperboards, in particular to frame paper for cigarettes and a preparation process of the frame paper. The problem that the mechanical property and the barrier property cannot be considered at the same time in the prior art is solved. According to the frame paper for the cigarettes, the bleached hardwood pulp and the softwood pulp are compounded, and the calcium carbonate and the nanocellulose crystals are added to prepare the high-uniformity modified paper base; then, polycaprolactone diol, isophorone diisocyanate, dimethylolpropionic acid and 1, 4-butanediol are subjected to a reaction, aminopropyltriethoxysilane is used for blocking, obtained polyurethane emulsion is mixed with gelatinized starch and flaky kaolin step by step, and the composite coating is prepared; coating double surfaces of the modified paper base with the composite coating, and performing step-by-step drying, hot-pressing shaping and curing to obtain the paper. Through multi-stage cooperation of paper base-coating-process, the frame paper has excellent mechanical properties, high printing stability and high barrier property, and is suitable for the field of high-grade cigarette packaging with strict performance requirements.

The invention discloses high-strength high-air-permeability germinable seed paper and a preparation method thereof, and belongs to the technical field of seed paper preparation. The technical problem that the water absorption and air permeability of traditional seed paper are reduced due to addition of a chemical reinforcing agent, and then the germination rate of seeds is affected is solved. According to the technical scheme, unbleached softwood pulp is used as a raw material, after being pulped by a PFI mill, the unbleached softwood pulp is mixed with cationic lignocellulose nanofibrils and seeds which account for 4-8% of the mass of absolute dry pulp for pulping, forming is conducted through an automatic paper making system of a Kaiser method, and drying and shaping are conducted at the temperature of 40 DEG C; the cationic lignocellulose nanofibrils are prepared by the steps of grinding unbleached softwood pulp, performing alkali treatment, performing etherification reaction and performing ultrahigh-pressure homogenization. The seed paper does not need a chemical reinforcing agent, the air permeability is 17.4-18.8 [mu] m / (Pa.S), the tensile strength is 6.08-6.84 kN / m, and the relative absorptivity is 214-230%.

This method for treating a paper diaper involves: a step for crushing a used paper diaper and washing same; and a pulp content reduction treatment step for reducing the pulp content ratio of a pulp-containing plastic fraction produced in the previous step by fracturing treatment and sorting treatment. The sorting treatment is performed by wind power sorting treatment, sieving sorting treatment, wet specific gravity sorting treatment, or the like.

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 invention discloses a carbon fiber paper-based material and a continuous calendering enhancement method thereof. The preparation method specifically comprises the following steps: repulping, grinding, defibering and sieving meta-aramid pulp, and then mixing with defibered and dispersed short carbon fibers to prepare paper pulp; sequentially carrying out forming, dewatering, squeezing and drying treatment on the slurry to obtain a carbon fiber base paper coiled material; and carrying out continuous calendaring enhancement treatment on the carbon fiber raw paper coiled material to obtain the carbon fiber paper. According to the method, the purpose that the temperature is higher than the glass transition temperature (larger than or equal to 273 DEG C) of the meta-aramid pulp can be achieved, the purpose of conducting hot pressing on the carbon fiber base paper can be achieved, the large-batch and continuous production requirements of the carbon fiber paper can be met, and the production efficiency is greatly improved.

The invention belongs to the technical field of nano-crystalline cellulose materials, and discloses a method for enhancing dissolved nano-crystalline cellulose papermaking. The method comprises the following steps: 1) dissolving a cellulose raw material with a solvent to obtain a cellulose solution; 2) mixing the cellulose solution with an anti-solvent, and performing nanoscale dispersion to obtain a dissolved nano cellulose dispersion; (3) washing the dissolved nano-cellulose dispersion to obtain a dissolved nano-cellulose aqueous dispersion; 4) adding the dissolved nano cellulose aqueous dispersion into the paper pulp, stirring, dispersing and homogenizing to obtain mixed pulp; and 5) performing papermaking forming on the mixed pulp to obtain enhanced paper. The method is simple, and compared with other nanocellulose, the water filtering time is effectively shortened. According to the method, the strength of the paper is remarkably improved, the problems that traditional paper is low in strength and water filtering time is long after the nano cellulose is added are effectively solved, application of the paper in the high-performance field and the industrial field is facilitated, and the application range of the paper is widened.

The utility model discloses a papermaking impurity removal pulp washer convenient to clean, which comprises a pulp washer and a pulp washing cavity, the pulp washing cavity is arranged in the pulp washer, a rotating shaft is transversely arranged in the pulp washing cavity, the interior of the rotating shaft is hollow, and the rotating shaft is arranged in the pulp washing cavity. The top of the pulp washing machine is provided with an injection assembly used for injecting liquid into the pulp washing cavity, one end of the injection assembly is communicated with the rotating shaft, and the pulp washing cavity is internally provided with a cleaning assembly used for cleaning the pulp washing cavity. The interior of the pulp washing cavity is hollow and is matched with the spraying head, all-directional washing of the pulp washing cavity and the surface of the pulp washing cavity is achieved, impurity residues are effectively prevented, meanwhile, the rotating brush is tightly attached to the inner wall of the pulp washing cavity and rotates along with the rotating shaft, pulp and impurities attached to the inner wall can be efficiently scraped, it is guaranteed that the cavity is kept clean for a long time, and the cleaning efficiency is improved.

The utility model discloses a positioning cutting device for paper production, which comprises a gas insulation cover used for being mounted on a water needle and a negative pressure box used for being mounted at the bottom of a forming net of a paper machine, the gas insulation cover is provided with a gas inlet hole, the negative pressure box is provided with an exhaust hole, and the top wall of the negative pressure box is provided with an airflow channel at the position corresponding to the water needle. The air isolation cover is installed on the water needle, the negative pressure box is installed at the bottom of the forming net of the paper machine, when the water needle conducts positioning cutting, the negative pressure box provides negative pressure, air enters from the air inlet of the air isolation cover, passes through the forming net and then enters the airflow channel, splashing paper pulp is pressed on paper through the air entering the air isolation cover, and therefore the paper pulp is prevented from splashing. And when the air passes through the cutting gap on the paper, the paper pulp on the cutting gap can be sucked out downwards.

The utility model discloses paper pulp residue removing equipment for paper product manufacturing, and relates to the technical field of paper product manufacturing. The paper pulp box comprises a paper pulp box body, a pulp conveying pipe is connected to the paper pulp box body, a discharging pipe is connected to the lower surface of the paper pulp box body, a filtering and scraping assembly is connected to the paper pulp box body, a pipeline anti-blocking assembly is fixedly arranged on the lower surface of the paper pulp box body, and the pipeline anti-blocking assembly is in movable contact with the discharging pipe. Impurities in paper pulp can be filtered out through the filter screen plate, in order to avoid blockage of screen holes, the first motor can be started to enable the connecting rod to rotate, and the connecting rod drives the screw rod to rotate, so that the sleeve block can move along the fixed frame and drives the scraper to move, and the impurities on the filter screen plate are scraped off; and the collecting barrel can be detached by rotating a bolt, so that impurities in the collecting barrel can be cleaned.

The application discloses aramid composite paper and a preparation method and application thereof, and relates to the technical field of aramid paper. The application provides aramid composite paper, which comprises three layers of fiber structure layers which are sequentially stacked, the first layer of fiber structure layer comprises aramid short-cut fibers and polyphenylene sulfide pulp, the second layer of fiber structure layer comprises plant fibers, and the third layer of fiber structure layer comprises aramid fibrids and polyimide fibers. The three-layer structure of the aramid composite paper of the application strengthens the compactness and uniformity of the insulating paper from two aspects of macro and micro, thereby enhancing the mechanical and electrical strength. Meanwhile, the specific selection of the specific first layer and third layer can better cooperate with the second layer of fiber structure layer, strengthen the local overheating identification function of the aramid composite paper, and solve the problems of the non-ideal uniformity of the existing aramid composite paper and the incapability of identifying local overheating on the basis of maintaining the excellent electrical insulation and heat resistance of the original aramid paper.

The invention relates to the technical field of battery diaphragms, in particular to a wood fiber composite diaphragm and a preparation method thereof. According to the diaphragm, renewable softwood pulp is used as a basic raw material, after aldehyde groups are introduced through sodium periodate oxidation, tannic acid, zinc acetate and cystamine are utilized to synergistically construct a zinc coordination network functional layer; then, molecular crosslinking with methoxypolyethylene glycol, polyethylene glycol, hexamethylene diisocyanate, gamma-aminopropyltriethoxysilane and nano silicon dioxide is realized under the action of a catalyst; and finally, the paper-making and hot-pressing processes are performed to prepare and mold. The diaphragm is particularly suitable for being applied to high-safety and high-performance aqueous metal zinc batteries, and an innovative technical path is provided for industrialization and green upgrading of zinc ion battery diaphragm materials.

The utility model discloses a paper pulp rotational flow high concentration desander relates to papermaking equipment technical field, the paper pulp rotational flow high concentration desander includes feed tee joint, pulp outlet pipe, conical liner, shell and sediment tank, feed tee joint's pulp inlet channel is arranged along feed tee joint's side wall tangential direction, feed tee joint's barrel inner wall is fixed with the helical blade that is distributed along the axial direction, feed tee joint's barrel inner wall is fixed with feed tee joint's feed tee joint's barrel inner wall is fixed with feed tee joint's feed tee joint's feed tee joint's feed tee joint's feed tee joint's feed tee joint's feed tee joint's feed tee joint's barrel inner wall. The spiral blades surround the circumferential direction of the slurry outlet pipe arranged in the axial direction, the inner wall of the feeding three-way barrel, the spiral blades and the pipe wall of the slurry outlet pipe define a spiral downward flow guide channel, the rotating direction of the flow guide channel is consistent with the cut-in direction of the slurry inlet channel, and conical spiral edges distributed in the axial direction are fixed to the inner wall of the conical container. The spiral blades, the flow guide channel and the conical spiral edges are arranged, slurry flows down along the flow guide channel after entering the sand remover in the tangential direction, the stability of rotational flow is improved, the slurry with stable rotational flow enters the conical container and is guided by the conical spiral edges, the inertia of centrifugal force and the stability of the direction are kept, and stable separation of impurities and the slurry is guaranteed.

This utility model discloses a raw material filtering device for wallpaper, relating to the field of wallpaper production technology. It includes a mounting frame with supporting feet fixed at its four bottom corners. Sliding rods are symmetrically fixed between the two sides of the inner wall of the mounting frame, and sliders slide on the outer sides of the sliding rods. A mounting cylinder is fixed between the opposite sides of the two sliders. A baffle frame is fixed to the top of the inner wall of the mounting cylinder. A swinging mechanism is provided at the top of the mounting frame, and a fixing mechanism is fixed to the top of one of the sliders. A filter frame is connected inside the mounting cylinder through the fixing mechanism. This raw material filtering device for wallpaper utilizes the swinging mechanism to agitate the pulp, avoiding reliance on gravity for passage, accelerating the pulp's flow rate, improving the filtering effect, and ensuring the pulp is evenly distributed at the bottom of the filter frame, preventing pulp accumulation and clogging during filtration, thus preventing any impact on the filtering effect.

The utility model discloses a kind of quantitative pulp distribution devices for kraft paper preparation, belong to kraft paper preparation field.The quantitative pulp distribution device for kraft paper preparation of the utility model, including stirring frame, the one side of stirring frame upper end is provided with converging pipe, the both sides of converging pipe outer upper end are all provided with temporary storage barrel.The utility model solves the problem that the intermittent pulp distribution device for existing production color paper needs to spend a lot of time to realize mixing by rotating vane rotation when quantitative pulp distribution, mixing efficiency is lower, influence kraft paper preparation efficiency, the utility model is gathered after the material of temporary storage barrel is discharged by transmission pipe, the inside of converging pipe in material gathering position is temporarily rotated by stirring piece, gather the material falling in different positions, and make material fall on the rotation track of stirring paddle, can directly improve stirring mixing efficiency.

The utility model provides a pulper feeding buffer device in papermaking equipment, the pulper comprises a pulping tank used for pulping pulp, the buffer device comprises a baffle plate, the baffle plate is configured on a path where the pulp falls to the bottom of the pulping tank, the baffle plate is obliquely arranged relative to the bottom surface of the pulping tank, and the baffle plate is a rectangular baffle plate; the fixing frame is configured to be fixedly connected with the side wall of the pulping tank; one end of each lifting device is fixedly connected with the baffle, the other end of each lifting device is fixedly connected with the fixing frame, and the four lifting devices are arranged at the four corners of the baffle respectively; the four lifting devices are configured to be controlled to adjust the heights of the four corners of the baffle correspondingly, and the inclination direction and the inclination degree of the baffle are controlled. The buffering device can reduce damage to the pulper in the pulp feeding process.

The utility model discloses paper mold forming equipment with an efficient drying function. The paper mold forming equipment comprises a paper pulp component, a forming component and a drying component, wherein the paper pulp component is filled with paper pulp; the forming component comprises a lower die assembly, an upper die assembly and a carrying assembly, the lower die assembly is arranged on the paper pulp component, and the lower die assembly adsorbs paper pulp in the paper pulp component. According to the paper mold forming equipment with the efficient drying function, by arranging at least two upper mold assemblies and at least two lower mold assemblies which are arranged side by side, a carrying assembly drives the upper mold assemblies to carry at least two paper mold wet blanks at a time, and the paper mold wet blanks are placed on one conveying assembly to be conveyed; under the action that the conveying assembly conveys the wet paper mold blank through the drying assembly, the wet paper mold blank is dried, paper mold forming machining is completed, when different types of paper molds are machined, the time of the wet paper mold blank staying in the drying assembly can be most appropriate by controlling the conveying speed of the conveying assembly, and the paper mold forming machining efficiency is improved. And the production efficiency and the adjustment efficiency of the paper mold are improved.

The utility model belongs to the field of handicrafts, and provides a paper pulp handicraft egg convenient to fill, which comprises an upper eggshell, a lower eggshell, a valve assembly and a material passing assembly, the bottom of the upper eggshell is connected with the lower eggshell, the bottom of the lower eggshell is in a horizontal structure, and a filling pipe is arranged in the middle of the bottom end of the lower eggshell in a penetrating manner; the other end of the filling pipe is obliquely connected with a transverse pipe located on the inner side of the lower eggshell, a material passing opening is formed in the obliquely-downward end of the transverse pipe, a valve assembly used for closing the material passing opening is movably arranged on the inner side of the transverse pipe, and a material passing assembly is arranged on the outer side of the filling pipe. According to the utility model, the filling pipe is arranged at the bottom of the lower eggshell to fill the mainstream filler, one end of the filling pipe is provided with the valve assembly through the transverse pipe to block the mainstream filler, and meanwhile, the material passing assembly is arranged to eject the valve plate open, so that the material passing opening is opened to fill the assembled upper eggshell and lower eggshell; the filling sufficiency of the filler is effectively guaranteed, and the situation that the filler overflows or is clamped at the connecting position is avoided.