7results about How to "Adequate adsorption" patented technology

The application discloses a nano-needle self-assembled flower-shaped microsphere metastable indium oxide gas-sensitive material, a gas-sensitive element and a preparation method and application. The nano-needle self-assembled flower-shaped microsphere metastable indium oxide gas-sensitive material has a three-dimensional flower-shaped microsphere formed by nano-needle self-assembly, the diameter of the nano-needle is about 8 nm, the diameter of the flower-shaped microsphere is about 2-3 microns, the main exposed crystal face of the material is (104), and the crystal structure is a metastable rhombohedral corundum phase. The prepared nano-needle self-assembled flower-shaped microsphere metastable indium oxide successfully realizes preparation of pure metastable indium oxide material under mild conditions and realizes application in the field of gas-sensitive detection, especially in the detection of H2S, and has the advantages of low working temperature, high sensitivity, high selectivity and low detection limit. Meanwhile, the synthesis preparation method is simple in synthesis, low in cost and has good industrial production prospects.

The invention discloses a method for treating sewage generated by a cage rough washing process, and belongs to the technical field of industrial sewage treatment. Sewage generated in a cage rough washing process is subjected to first-time filter pressing after being treated by polyacrylamide and polyaluminum chloride, then a flocculating agent and water are mixed and put into a liquid medicine cylinder, the agent and the sewage in the liquid medicine cylinder are synchronously conveyed into a stirring cylinder for first-time stirring, then an oil removing agent is added, and second-time stirring is continued; and carrying out secondary filter pressing on the treated water, feeding the water into a precipitation cylinder, finally adding an oxidizing agent, and standing to obtain the treated water. According to the method, by adding polyacrylamide, polyaluminum chloride, a flocculating agent and a deoiling agent, metal ions, oily components and other impurities in sewage generated in the rough washing process are rapidly removed, the impurity content and the COD value in the sewage are reduced, the treated water can be applied to the rough washing process again, and the utilization rate of water resources is increased.

This invention discloses a method for preparing a high-oil-content O / W film-forming formulation, comprising the following steps: Step 1, raw material pretreatment and screening; Step 2, preparation of the oil phase component; Step 3, preparation of the aqueous phase component; Step 4, primary pre-emulsification treatment; Step 5, high-pressure homogenization and fine emulsification; Step 6, compounding of film-forming aids and system conditioning; Step 7, vacuum degassing treatment; Step 8, low-temperature curing and stabilization treatment; Step 9, molding, coating and curing film formation; Step 10, post-treatment and quality inspection. This invention employs nonionic and anionic compound emulsification, combined with multi-stage high-pressure homogenization and interface modifier optimization, to achieve uniform oil droplet size distribution and effectively suppress stratification, demulsification, and flocculation phenomena under high oil-phase ratios. Through a low-temperature segmented curing process, the emulsifier is fully adsorbed and arranged at the oil-water interface, enhancing the strength and toughness of the interfacial film, while simultaneously improving the compatibility between the film-forming agent and the emulsification system.

This application relates to a detour filtration and silencing system for a fan inlet, belonging to the field of fluid technology. It includes an intake pipe connected to a fan; a silencing device connected to the intake pipe; the silencing device includes an intake structure and an outlet structure; a filter structure is provided on the intake structure; the silencing device includes a housing, one end of which is closed; the intake structure is located on the pipe wall of the housing; an internal pipe is embedded within the housing; a silencing structure is provided on the outer wall of the internal pipe; the end of the internal pipe facing the closed end of the housing is open, with a gap between it and the closed end; the end of the internal pipe away from the closed end of the housing serves as the outlet structure, which is connected to the intake pipe; a gap exists between the inner wall of the housing and the outer wall of the internal pipe, called a detour gap; forming an airflow channel from the intake structure, the detour gap, the internal pipe, the outlet structure, to the intake pipe. This application integrates filtration and silencing functions, and simultaneously absorbs noise through a detour intake path, improving gas silencing performance.

This utility model discloses a treatment system for recovering industrial-grade sodium chromate from chromium-containing electroplating wastewater. The system is sequentially connected to a pretreatment system, an ion exchange system, an evaporation and concentration system, a purification system, and an evaporation and crystallization system. The pretreatment system removes suspended solids. The ion exchange system contains at least four ion exchange columns and an eluent tank; the coordinated operation of multiple columns ensures sufficient adsorption and elution of chromium, increasing the concentration of hexavalent chromium in the eluent, reducing the load on subsequent evaporation equipment, and shortening processing time. The evaporation and concentration system uses an MVR evaporator and integrates an online density meter. The purification system is equipped with a purification reaction vessel with a detachable pH meter probe, which can quantitatively remove sulfate, reducing the difficulty of salt separation and crystallization, increasing the number of mother liquor circulations, and thus improving the chromium recovery rate. The feed to the eluent tank allows for reasonable adjustment of the alkali dosage according to different concentrations of components, avoiding waste and reducing costs. The detachable pH meter probe facilitates maintenance, ensures accurate monitoring, and improves the stability of sulfate removal rate and the quality of sodium chromate products.

A split type display box easy to fix comprises an inner box body and an outer box body wrapping the outer side of the inner box body, a plurality of edges of the inner box body are each provided with a first folded edge for reinforcing the box body, the first folded edges are provided with inserting holes, a plurality of edges of the outer box body are each provided with a second folded edge corresponding to the first folded edge in position, and the inserting holes are formed in the inserting holes. One side, far away from the outer box body, of the second folding edge is provided with an insertion tongue matched with the corresponding insertion hole, and the rear side of the outer box body is provided with at least two hook-shaped plates which are clamped with each other. Through the design of the inner box body and the outer box body, the advantage that a split type structure is convenient to transport is reserved, the defect that a traditional split type box is insufficient in protection performance is overcome through the innovative insertion connection mode of the insertion holes of the first folded edges and the insertion tongues of the second folded edges, and the effects of simplifying the assembly process and reducing the storage and transportation cost are achieved.

The pressure swing adsorption mechanism comprises an adsorption tower with a built-in pressure controller, a gas inlet, a gas outlet and adsorption boxes, the adsorption boxes are arranged in the adsorption tower at equal intervals, a filter screen is arranged on the outer side of the gas outlet in a sleeving mode, the upper end of the filter screen is fixedly connected with a connecting plate, and the upper end of the filter screen is fixedly connected with the connecting plate. Meanwhile, the connecting plate is inserted into a fixing plate fixed at the right upper end of the adsorption tower, and the fixing mechanism, the connecting plate and the fixing plate drive the filter screen to form a detachable structure on the outer side of the air outlet. According to the pressure swing adsorption mechanism for hydrogen purification, multiple groups of adsorption boxes are arranged in the adsorption tower, an adsorbent is laid in each adsorption box, the adsorption boxes can make full contact with gas, the more sufficient adsorption effect is achieved, a filter screen is arranged at a gas outlet, fine impurities contained in hydrogen can be treated, and the purification efficiency is improved. And in combination with the arrangement of a fixing mechanism, the filter screen is convenient to disassemble, clean and replace.