95results about How to "Improve coagulation efficiency" patented technology

The invention discloses a high speed steel finishing roll of a wire bar mill and a manufacturing method of the high speed steel finishing roll, belonging to the technical field of machining and casting. The finishing roll consists of a roll neck and a roll body comprising a working layer, a primary core and a core part; the working layer comprises the following chemical components: 1.50-2.50 percent of C, 0.40-1.00 percent of Si, 0.40-0.80 percent of Mn, less than or equal to 0.03 percent of P, less than or equal to 0.03 percent of S, 4.0-8.0 percent of Cr, 0.50-1.00 percent of Ni, 5.00-8.00 percent of Mo and 5.00-8.00 percent of V. In the casting process, the casting temperature and the rotating speed of a centrifuge can be controlled by adopting manners of high-temperature discharge from a furnace, low-temperature casting, high-speed mold filling and slow-down solidification. According to the high speed steel finishing roll and the manufacturing method of the high speed steel finishing roll, the adaptability of high speed steel materials on bar rolling can be effectively solved by reasonable design of alloy components and the processing technology, and the wear resistance and the millimeter rolling quantity of the roll are improved; in addition, the high speed steel finishing roll has favorable thermal crack resistance, and the working efficiency of a heavy and medium plate mill can be greatly improved.

The invention discloses an inorganic polymer coagulant for water treatment and a preparation method thereof. The inorganic macromolecule coagulant is polymerized zirconium tetrachloride, which uses zirconium tetrachloride and concentrated lye as raw materials, and slowly adds the concentrated lye to the zirconium tetrachloride solution to obtain different suitable alkalization degrees, concentrated alkali The dropwise addition process is controlled to be completed within 3 hours, and then the stirring is continued for 3-5 hours until the solution becomes a colorless and transparent liquid. The inorganic polymer coagulant provided by the invention has the advantages of good product stability, strong adsorption and bridging ability to colloidal substances, good coagulation effect, wide application range, etc., and can be widely used in water supply, wastewater treatment, papermaking, textile printing and dyeing , Daily chemicals and other fields, and has a good water treatment effect. The method of the invention has the characteristics of simple and convenient process, economy, speed and the like.

A process for removing the algae from the raw water of water works by ultrasonic waves includes adding coagulant to said raw water, coagulating reaction while applying ultrasonic waves via ultrasonic transducer, filtering and disinfecting.

The invention discloses the electrotome handle, lighting electrotome handle, vacuum suction tube, vacuum pump of an attraction electrotome. In the hollow electrotome handle, a power circuit of the electrotome is arranged in the electrotome handle or the wall of the electrotome handle; an attraction opening is formed the tail of the electrotome handle; a conducting blank pipe is provided with a hollow channel, and the rear end of the conducting blank pipe is arranged in the front of the electrotome handle; and the rear end of the conducting blank pipe is connected with the power circuit of the electrotome, and the front end of the conducting blank pipe extrudes out of the electrotome handle and forms a thin tip suction inlet forward. The electrotome provided by the invention absorbs smoke generated in the process of operation uninterruptedly, and during the operation on a narrow and deep area, the electrotome can penetrate into the area to absorb the generated smoke, liquid impurities and the like close to the electrotome completely in time and discharge the smoke, the liquid impurities and the like to the outside or a sterilizer without blocking the negative pressure suction pipe and the negative pressure pump; and in an operation area of a narrow dark area, an illuminating lamp on the electrotome can also illuminate conveniently and clearly. In addition, an electrotome head, the electrotome handle and the negative pressure pump can be disassembled conveniently and quickly to be replaced and disinfected, and a filter screen and a filter can be replaced conveniently.

The invention relates to injectable and degradable dry hemostatic cryogel with good shape memory and blood coagulation capability as well as a preparation method and an application of the injectable and degradable dry hemostatic cryogel. Chitosan is resuspended in deionized water, glacial acetic acid is dropwise added under stirring, and a CS solution is obtained after uniform mixing; dopamine hydrochloride is added to the deionized water to prepare a DA solution; the CS solution is mixed with the DA solution, an oxidant solution is added simultaneously, and the solutions are uniformly mixed to obtain a mixed solution; and finally, the mixed solution is placed at the temperature of subzero 7-subzero 20 DEG C to react for 12-36 h, a cross-linked cryogel network in a frozen state is obtained, and is placed in the deionized water to be melted, freeze drying is conducted, and the injectable and degradable dry hemostatic cryogel with good shape memory and blood coagulation capability is obtained. The cryogel dressing has high elasticity and ultrafast shape recovery capability, can quickly absorb blood, and has photo-thermal antibacterial performance and the like.

The invention discloses a landscape water body emergency treatment method based on a magnetic loading coagulation technology. The landscape water body emergency treatment method comprises the following steps: (1) guiding the landscape water body to be treated into a reaction tank, orderly feeding magnetic powder and polyaluminum chloride to the reaction tank, and stirring for 30-90 seconds under the condition of a stirring speed of (80-200)r/min; (2) adding polyacrylamide and stirring for 4-10 minutes under the condition of a stirring speed of (40-80)r/min; stopping stirring, and after static settling for 25-60 minutes, discharging clear water, discharging sludge from the reaction tank and recovering the magnetic powder. The landscape water body emergency treatment method based on the magnetic loading coagulation technology is simple to operate, low in dosage of a coagulant, high in coagulation efficiency, short in floc static settling time and good in water yielding effect. The precipitation of suspended solid substances is accelerated by virtue of magnetic loading, and therefore, pollutants in the water can be effectively removed; the recovered magnetic powder can be recycled and can be applied to improvement of the water quality of the landscape water body, particularly emergency treatment.

The invention provides a modification method for saving the operation cost of a water treatment plant supplied with water from a low turbidity water source. The modification method comprises the following steps: investigating the change situations of water quality and water amount of water in the water source of a water treatment plate in different seasons, evaluating the conventional technological processing effect and operation cost of the water treatment plant; if the water in the water source of the water treatment plate meets the conditions of low turbidity and low pollution, reconstructing and enhancing each technical step, optimizing the operation parameters; after reconstruction, and evaluating the quality of processed water and cost so as to achieve the goal of reducing operation cost. Through evaluating the comprehensive operation cost and determining the optimal operation parameters by using an optimization processing unit, the water quality of water source of a water treatment plant, processing effect of each technical unit, the water quality indexes of processed water, and safety are all combined with the overall economic cost of the water treatment plant; moreover, the wastewater generated during the production process is returned together to enhance the coagulation efficiency of low turbidity water, the water resource is also saved, the sewage discharge is reduced, and the method is very important for the upgrading and reconstruction of the water treatment plant.

The invention relates to a compound flocculant with polymerization ferric chloride and amination polymers based on papermaking sludge and a method for preparing the compound flocculant. The method includes synthesizing amination polymers from the papermaking sludge generated in the papermaking industry; compounding the amination polymers and the inorganic flocculant polymerization ferric chloride to prepare the compound flocculant with the polymerization ferric chloride and the amination polymers based on the papermaking sludge. The compound flocculant and the method have the advantages that the color removal rate of disperse yellow water samples can reach 95% at least when the compound flocculant is used for treating the simulated dye water samples and the dosing quantity of the compound flocculant is 5 mg/L, excellent flocculation effects can be realized by the compound flocculant for water samples under different acidity and alkalinity conditions and other diversified water samples, the capital construction cost of reaction tanks and sedimentation tanks can be reduced, and the compound flocculant is high in electricity performance and flocculation efficiency, good in dissolving property, long in storage cycle and applicable to the field of water supply, wastewater treatment and the like and suitable for actual application to water treatment.

The present invention relates to a lid mold structure with a grill and a diversion control device. The lid mold structure is characterized in that: a fixed mold frame is provided internally with a fixed mold core; a movable mold frame is provided internally with a movable mold core; the movable mold core is connected to a shunt sub; the fixed mold core is provided with a sprue bush; the center of the fixed core is provided with a molding recess; the molding recess is provided with a circular radiator grill; one side of the circular radiator grill is provided with two diversion control modules; the other side of the circular radiator grill is provided with a condensation control cavity; the center of the movable mold core is provided with an oval shaping boss; the center of the oval shaping boss is provided with a molding grill; one side of the molding grill is provided with a semicircular boss, and one side of the boss is connected to a guide column group; and shaping boss is equipped with a deceleration bump group. Dross outside the shaping boss and the circular radiator grill in the fixed mold core realize the more efficient and smooth gas exhaust, rapidly reduce local problems, improve the efficiency of coagulation, reduce the pores of the product, and improve the mold quality.

The invention discloses movable type combined transporting and loading equipment for building thermal-insulation frame material processing. The movable type combined transporting and loading equipmentcomprises a supporting and carrying cabinet, a transporting base, an inner table, an inner bracket, a glue coating table and a rear sleeve frame, wherein the transporting base is arranged on the upper end surface of the supporting and carrying cabinet; one side of the top of the supporting and carrying cabinet is equipped with the inner table; and one side of the inner table is equipped with theinner bracket. The movable type combined transporting and loading equipment has the beneficial effects that: glue coating nozzles on the bottom of a glue barrel drop and coat mucilage glue into glue holes; while mucilage glue is dropped, a motor II drives the glue barrel in a rail slot I to move back and forth, and a motor III drives the glue barrel to move back and forth, so that on one hand, connection between upper and lower layers of frames on a thermal insulation frame material is guaranteed to be firmer, on the other hand, the glue coating nozzles are matched to synchronously and separately coat glue for glue holes in different positions on the thermal insulation frame material, and therefore, the equipment improves glue coating efficiency of the thermal insulation frame material. The equipment is high in automation degree of work, is firm and durable, has good social benefits, and is suitable for being popularized and used.

The invention discloses a hemihydrate building gypsum coagulant and a preparation method and application thereof. The coagulant comprises mother liquor and powdery master batch, wherein the powdery master batch comprises soluble calcium salts; and the mother liquor is a sulfuric acid solution. The soluble calcium salts are matched with dilute sulfuric acid with a certain concentration to improve the concentration of calcium ions and sulfate ions in the fluid phase of the hemihydrate gypsum slurry so as to rapidly reach the supersaturation degree of crystallization of calcium sulfate dihydrate,finally, a large amount of primary micro calcium sulfate dihydrate crystal nuclei are formed in the solution of the hemihydrate gypsum slurry, the obtained crystal nuclei are smaller in size and strong in induced crystallization effect, so that quick hardening of the hemihydrate building gypsum is achieved; the preparation process is simple, the using method is simple and easy to operate, technical support and theoretical guidance are provided for the hemihydrate gypsum coagulant with low cost and high coagulation promoting effect, and the method has good application prospect.

The invention provides an industrial sewage treatment method, which comprises the following steps of (1) mechanical treatment; (2) softening treatment; (3) reinforced coagulation; (4) pulse discharging plasma-photocatalysis cooperated degradation of organic matters; (4) ultrasound cooperated nanometer zero-valent iron treatment; (6) iron wire cage framework cellulose aerogel adsorption; (7) ultrafiltration/nanofiltration-reverse osmosis integrated film method treatment. The industrial sewage treatment method provided by the invention has the advantages that the process is simple; the operationperiod is short; contaminants such as suspended matters, organic matters and salts contained in the industrial sewage can be thoroughly removed; a good removal effect can be achieved on various kindsof continuous organic contaminants and heavy metal; in addition, the commonality is realized on the contaminant removal; the heavy metal recovery rate is high; the economic benefits are good; the process flexibility is high; the anti-impact load capability is high; the sewage recovery rate is high; the method is applicable to the sewage treatment in various fields of electric power, photovoltaics, photoelectricity, semi-conductors, electrics, pharmacy, metallurgy, petrochemical engineering and the like.

The invention discloses injectable hemostatic cryogel for promoting tissue regeneration and a preparation method and application thereof. The preparation method comprises the following steps: ultrasonically dispersing polydopamine, chitosan and collagen in deionized water, adding glacial acetic acid, and stirring until dissolving; and dissolving oxidized dextran in deionized water, adding an oxidized dextran solution into a mixed solution under vigorous stirring, transferring to a refrigerator for a reaction, and melting at room temperature to obtain the injectable hemostatic cryogel for promoting tissue regeneration. The aperture of the cryogel is 50-200 [mu] m, and the cryogel is provided with interconnected macroporous structures and stable mechanical strength, can be conveyed to a narrow and deep wound through an injector after being compressed and fixed, quickly recovers to block the wound and form a physical barrier after sucking blood, and activates a blood coagulation process through concentrated blood to achieve a hemostasis effect. The cryogel prepared by the invention has rapid shape recovery capability, injectability, good hemostatic capability and the like.

The invention discloses a friable rock stratum sample-collection drill pipe structure, particularly discloses a drill pipe structure; according to the drill pipe structure, multiple layers of structures are combined to form a circular hollow zone, external refrigerants keep the hollow zone at a low temperature, so that the outer sides of samples are solidified to form protective shells, and soil sample in the core portion is separated and collected through a sampling tube. The outer edges of the samples cannot be squeezed due to the fact that cooling is performed after sampling. The drill pipestructure is characterized in that an inner support ring is arranged on the inner wall of one end of an outer drill bushing, the inner diameter of the inner support ring is reduced gradually from bottom to top, multiple groups of drill pipe edges are arranged on the outer wall of the outer drill bushing at equal intervals, drill pipe edges in the same group are arranged circularly, the width of the drill pipe edges is reduced gradually from one end to the other end gradually, an inner circular groove is formed in the inner side wall of the outer drill bushing, one end of the inner circular groove extends to the position of the inner support ring, a lower spacer tube is arranged in the outer drill bushing, one end of the lower spacer tube is screwed with the other end of the outer drill bushing through external threads, and a seal gasket is arranged on the end face of the other end of the lower spacer tube, and fits the inner support ring well.

The invention discloses a continuous condensation method of perfluorinated ethylene propylene emulsion. According to the continuous condensation method of the perfluorinated ethylene propylene emulsion, a pipeline type emulsifying machine with the following parameters is used: the effective volume ratio alpha (effective volume in a container/volume in the container) is less than or equal to 0.6 and greater than or equal to 0.2; the dynamic coefficient K is equal to Pv/mu/n<2>, wherein Pv is the power used by each unit volume and the unit is W/m<3>, mu is the viscosity of the emulsion and the unit is Pa.s, n is the rotation speed, and the unit is rps, and K is greater than or equal to 10000; continuous condensation is carried out on the perfluorinated ethylene propylene emulsion prepared by the emulsion polymerization method. The continuous condensation method provided by the invention is simple in process, dispenses with diluting the emulsion before the condensation, so that the dosage of the ionized water is saved and the production cost can be effectively reduced; moreover, the residual powder rate is low, and the condensation effect is good.

The invention belongs to the field of thin-strip continuous casting, and relates to an edge quality control technology of thin strip steel produced through thin-strip continuous casting, in particular to a production control method for improving flanging of a thin-strip continuous casting thin strip steel coil. By controlling the H content of continuous casting molten steel and the baking time of various refractory materials before casting, the H content of the molten steel in a molten pool in the continuous casting process of thin strip steel is controlled, the heat conduction efficiency between the molten steel on the edge of the molten pool and a crystallization roller is improved, the thickness of a blank shell obtained by molten steel solidification is increased, and the influence of static pressure of the molten steel on the edge thickness of the continuous casting thin strip steel is reduced. Meanwhile, by measuring the difference value between the maximum value and the minimum value of the thickness of the thick area of the edge area of the thin strip steel, a mathematical model of the edge pressure of the crystallization roller and the difference value is established, and the control value of the edge pressure of the crystallization roller is adjusted in real time. The problem of flanging of the strip steel coil in the thin-strip continuous casting thin strip steel production process can be solved, so that the edge quality of the thin strip steel coil and the product percent of pass are improved.

The invention discloses a flocculant and a preparation method thereof. The raw material formula is composed of the following components in parts by weight: 50-80 parts of polyacrylamide; 5-8 parts of magnesium sulfate; 5-8 parts of attapulgite 8 parts; 5~8 parts of aluminum sulfate. The invention discloses a flocculant and a preparation method thereof. The flocculant has high coagulation efficiency and good effect, and is especially suitable for treating printing and dyeing wastewater. The decolorization rate exceeds 90% and the CODcr removal rate is greater than 78%.