10results about How to "Improve liquid permeability" patented technology

The invention relates to the technical field of waste gas treatment, in particular to waste gas treatment equipment of a reaction kettle for producing terpilenol by a two-step method and a treatment process thereof, the waste gas treatment equipment comprises a waste gas treatment tower, and a gas inlet assembly is arranged in the waste gas treatment tower; the air inlet assembly is used for dispersing air flow and comprises a uniformizing component and a buffering component. According to the waste gas treatment tower disclosed by the invention, by uniformly distributing the air flow, waste gas can be ensured to uniformly enter a subsequent treatment link, and in the waste gas treatment process, the treatment components such as filler can uniformly contact with various components in the waste gas, so that the waste gas can be uniformly treated, and the treatment efficiency is improved. The condition that the treatment load of a local area is too heavy and other areas are not fully utilized is avoided, the gas buffer cavity and the second buffer plate, the third buffer plate and the first buffer plate in the gas buffer cavity can contain redundant waste gas, the situation that high-speed airflow causes too large impact on follow-up treatment components is avoided, and the mass transfer efficiency is improved.

This invention discloses a special consumable for a double-layer cat litter box and its preparation and usage method, relating to the field of pet cleaning products technology. The invention's upper layer of cat litter and lower layer of absorbent and deodorizing granules, through synergistic design of formula and process, form a complete pet excrement treatment system. The upper layer of cat litter is responsible for trapping and encapsulating feces and draining urine, while the lower layer of absorbent and deodorizing granules is responsible for absorbing and treating odors generated by urine and feces. The combined use of these two layers achieves a highly efficient usage mode with automatic urine seepage, direct feces removal, no need for stirring the upper layer, and regular replacement of the lower layer. This significantly simplifies daily maintenance procedures, reduces the labor intensity of pet ownership, and significantly improves the user experience for family pet cat owners.

Provided is a non-woven fabric having excellent liquid permeability and mechanical properties for a high-viscosity liquid. The non-woven fabric includes thermally adhesive composite fibers in which intersection points are thermally adhered, the specific volume of the non-woven fabric is 60 cm3 / g to 95 cm3 / g, and the fiber density ratio of a high-density region to a low-density region in the non-woven fabric is 1.4 or less. The thermally adhesive composite fibers constituting the non-woven fabric are distributed in a state of low density in the thickness direction of the non-woven fabric, and the fibers form adhesive points at an appropriate density.

The utility model relates to the technical field of medical instruments, in particular to a three-way assembly for critical patients, which comprises an outer sleeve, an inner sleeve is arranged in the outer sleeve, the left end of the outer sleeve is fixedly connected with a first connecting port, and the right end of the outer sleeve is fixedly connected with a second connecting port. Four connecting sleeves are arranged on the upper portion of the outer surface of the outer sleeve, three-way valve switches are arranged at the upper ends of the four connecting sleeves, three pointing arrows are arranged at the upper ends of the four three-way valve switches, and four communicating pipes are fixedly connected to the front portion of the outer surface of the outer sleeve; and silica gel heparin caps are arranged at the ends, away from the outer sleeve, of the four communicating pipes. According to the three-way assembly for the critical patient, the multiple three-way valves and the outer sleeve form a whole, the liquid passing effect can be improved, the situation that the multiple three-way valves are combined and connected through medical workers is avoided, the workload of the medical workers can be reduced, meanwhile, the number of connecting positions is reduced, and the situation of liquid leakage is avoided.

Provided is a non-woven fabric for an absorbent article, said non-woven fabric being capable of suppressing interlayer peeling and having excellent liquid permeability and liquid discharge properties. A non-woven fabric (16) for an absorbent article is provided with, in order in the thickness direction (T), a first fiber layer (26) that has a first surface (22) and is formed from heat-fusible fibers, and a second fiber layer (28) that contains water-absorbent fibers and heat-fusible fibers, a part of the heat-fusible fibers of the first fiber layer (26) entering the second fiber layer (28), and the heat-fusible fibers of the second fiber layer (28) entering the first surface (22). The second fiber layer (28) is welded to a portion of the second fiber layer (28) by means of the heat-fusible fibers, and the water-absorbent fibers of the second fiber layer (28) are not exposed on the first surface (22).

The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a multiphase reaction wetting device and a test method.The multiphase reaction wetting device comprises a horizontal furnace, a hanging assembly, a supporting body, a processor and at least two image collectors, a containing groove is formed in the top of the supporting body, and two carbon plates are placed in the containing groove in an intersecting mode; the included angle of the two carbon plates is the same as the opening of the containing groove in direction, a first melt is placed between the included angle of the two carbon plates, and the hanging assembly is arranged on the upper side of the opening of the containing groove and used for hanging a second melt. The two image collectors are arranged at the two ends of the horizontal furnace respectively and used for recording angle changes of wetting of the two melts on the two carbonaceous plates, and the processor is used for analyzing the interactive influence of wetting behaviors of the two carbonaceous plates on the two melts according to the obtained angle changes. The device can deeply analyze the synergistic wetting process of two melts of slag and iron between the surfaces of two carbonaceous materials, provides effective guidance for improving the air permeability and liquid permeability of the blast furnace, and ensures the operation stability of the blast furnace.

To provide a chromatography carrier which exhibits high liquid permeability and an excellent pressure-resistant characteristic during liquid passage. The chromatography carrier production method of the invention includes the following steps 1 and 2: (step 1) a step of providing a solid phase support, wherein the solid phase support provided in step 1 is formed of porous particles on which a ligand has or has not been immobilized; and (step 2) a step of subjecting the solid phase support to sieve classification, wherein the coefficient of variation of the volume particle size distribution of the porous particles when a ligand has been immobilized is adjusted to 1% to 22%, and the skewness of the volume particle size distribution of the porous particles when a ligand has been immobilized is adjusted to -0.1 to 5.

To provide a chromatography carrier which exhibits high liquid permeability and an excellent pressure-resistant characteristic during liquid passage. The chromatography carrier production method of the invention includes the following steps 1 and 2: (step 1) a step of providing a solid phase support, wherein the solid phase support provided in step 1 is formed of porous particles on which a ligand has or has not been immobilized; and (step 2) a step of subjecting the solid phase support to sieve classification, wherein the coefficient of variation of the volume particle size distribution of the porous particles when a ligand has been immobilized is adjusted to 1% to 22%, and the ratio (d1 / d50) of volume cumulative 1% particle size d1 to volume cumulative 50% particle size d50 in terms of the porous particles is adjusted to 0.55 to 1.0.

The present application relates to the technical field of composite materials, and particularly relates to a porous superabsorbent polymer and a preparation method thereof; the preparation raw material of the porous superabsorbent polymer comprises the following components in parts by weight: 10-30 parts of acrylic acid, 40-60 parts of water, 20-25 parts of sodium hydroxide, 0.4-1 part of a pore-forming additive, 0.2-0.5 parts of an internal crosslinking agent, 0.05-0.1 parts of an initiator, and 0.1-1 parts of a surface crosslinking agent. The present application innovatively adopts a secondary drying process, and simultaneously uses a special pore-forming additive; the additive is decomposed to produce volatile monomers and small-molecule esters at high temperatures; the small-molecule esters can undergo an ester exchange reaction with carboxylate groups on molecular chains, thereby playing a role in reinforcing pore channels, so that the pore channels of the superabsorbent polymer are stable and strong, and the liquid permeability and absorption speed of the product are greatly improved.

The present invention addresses the problem of providing a depth filter which has excellent filtration accuracy with respect to a fluid that contains fine particles and coarse particles and has a wide particle size distribution, and which has high liquid permeability, while maintaining a low filtration pressure, thereby being capable of performing filtration at a high flow rate. The present invention provides a depth filter which is formed by rolling a fiber assembly into a cylinder, the fiber assembly being formed of melt blown fibers which are formed of a thermoplastic resin A and melt blown fibers which are formed of a thermoplastic resin B that has a lower melting point than the thermoplastic resin A. This depth filter has a gradient where the average fiber diameter of the melt blown fibers which are formed of the thermoplastic resin A and the average fiber diameter of the melt blown fibers which are formed of the thermoplastic resin B continuously decrease from the outer circumference toward the inner circumference of the cylinder of the depth filter; and the average fiber diameters of the melt blown fibers which are formed of the thermoplastic resin A and the melt blown fibers which are formed of the thermoplastic resin B are decreased from the range of 20 µm to 1 µm to the range of 0.99 µm to 0.1 µm.