48results about How to "Play a role in dehydration" patented technology

The invention discloses a rapid dehydration curing agent as well as a preparation method and an application thereof. The rapid dehydration curing agent is formed by mixing anti-stripping agent powder, mineral powder, polymer rubber powder and cement. After the curing agent is added to a mixture, normal-temperature asphalt concrete is rapidly dehydrated and cured, and has a high elastoplastic surface layer and excellent weather resistance, so that the problems that the traditional modified emulsified asphalt concrete is slowly dehydrated and not easily cured are solved, and thus the construction efficiency and the social benefits are greatly improved.

The invention discloses a preparation method of chromium-free leather. Firstly naked leather is dehydrated by adopting an organic solvent 1 till the water content is lower than 10%, white wet leatheris obtained, and the organic solvent is recycled; an organic solvent 2 with the tare weight being 30-200% and a reactive substance with the tare weight being 2-20% are added and rotated for 120-600 minutes, and bath liquid is recycled; and finally drying is conducted, and dyeing and filling operations can be done before drying. The white wet leather is prepared through dehydration by adopting thesolvent, then the reactive substance is added to react with the hydrophilic group on the collagenous fiber, the hydrophilic group is blocked, the waterproof performance is improved, accordingly the leather with fiber dispersed is sufficiently and durably fixed, and preparation of the chromium-free leather is finally achieved. The preparation method is characterized in that the production period isshort, the procedure is simple and easy to operate, the prepared leather has the good softness, good gas permeability and high tension stress.

The invention provides a method for continuously preparing methyl anthranilate, belonging to the technical field of preparation processes for organic compounds. The method comprises the following concrete steps: separately pouring a methanol solution of anthranilic acid and a concentrated sulfuric acid solution into a mixed reaction chamber of a microchannel reactor, and carrying out a preheatingreaction in the mixed reaction chamber to form a mixed solution having methyl anthranilate; and neutralizing a sodium hydroxide solution and the mixed solution, and carrying out cooling to allow methyl anthranilate to be precipitated. According to the invention, the methanol solution of anthranilic acid and concentrated sulfuric acid are separately injected into the mixed reaction chamber of the microchannel reactor; the concentrated sulfuric acid produces dehydration and catalysis effects and can promote the reaction of anthranilic acid with methanol to form methyl anthranilate, so the product can be obtained in one step without a solvent reaction, no additional post-treatment procedure is needed, and environment protection is realized; the concentrated sulfuric acid solution can be neutralized by the sodium hydroxide solution, which is beneficial for improving the purity and yield of methyl anthranilate, and product synthesis efficiency is high.

The invention discloses a concentrating, dewatering and strong-pressing integrated sludge dewatering machine which comprises a rack, and further comprises a gravity filtering mechanism, a vertical rolling dewatering mechanism and a counter-pressing type dewatering mechanism which are sequentially arranged on the rack, the gravity filtering mechanism comprises a filtering device, a bottom frame assembly, a side leakage preventing assembly, a mud overturning assembly and a thickness adjusting assembly; the vertical rolling dehydration mechanism comprises an S-shaped dehydration section, the S-shaped dehydration section is located at the downstream of a slurry outlet, the S-shaped dehydration section comprises a plurality of dehydration rollers which are rotatably connected to the rack and are integrally arranged from bottom to top, and the outer diameters of the dehydration rollers are gradually decreased to the minimum outer diameter from the upstream to the downstream; the counter-pressing type dewatering mechanism comprises a strong pressing section, a strong pressing roller set is arranged on the strong pressing section, and the strong pressing roller set comprises a fixed rollerset and a movable roller set. The gravity filtering mechanism, the vertical rolling dewatering mechanism and the counter-pressure type dewatering mechanism are arranged to form the sludge dewateringmachine which is large in treatment flux, high in water filtering capacity and high in treatment precision.

The invention discloses a dehydration and drying device for a scutcher. The dehydration and drying device comprises a cleaning device, a dehydration device and a drying device which are arranged in sequence, and then integration of scutching, dehydration and drying can be achieved. When fabric passes through the cleaning device, a cleaning scraper blade on the cleaning device is in contact with the two sides of the fabric, uncleaned naps and foreign matter of the fabric can be scraped off, and meanwhile, certain effects of smoothing and dehydration on the fabric can be achieved. When the conveyed fabric passes through the dehydration device, a beating roller rotates to make a beating strip beat and dehydrate the upper and lower sides of the fabric, and the fabric is unlikely to get wrinkled. A drying box is arranged longitudinally, a cloth outlet seam for the fabric to penetrate through is formed in a cover plate of the drying box, through a small fabric outlet, the amount of water vapor leaking to the fabric outlet can be reduced, and the influence of the water vapor on the dried fabric is prevented; and meanwhile, air current generated by a second draught fan is input to the drying box from bottom to top, then generated hot gas is discharged to an inlet, and the influence of hot steam on the dried fabric is reduced.

The application discloses a cleaning device and a capacitor group vertical printing integrated machine. The cleaning device is used for cleaning a capacitor blank, and the cleaning device comprises afirst washer, a rotating frame, an angle encoder and a controller. The first cleaner is used for wet cleaning the naked product of the cleaning station and is provided with a second cleaner. The second cleaner is used to dry clean the naked product of the cleaning station. The rotating frame is rotated around its rotation axis to clamp the naked product alternately into and out of the cleaning station. The angle encoder is used to encode according to the rotation angle of the rotating frame. The controller is respectively connected to the angle encoder and the first cleaner for controlling thefirst cleaner to wet the naked product according to the signal of the angle encoder. The technical solution of the present application can improve the yield of capacitor manufacturing.

The invention belongs to the technical field of clothes treatment, and particularly provides miniature clothes treatment equipment. The invention aims to solve the problem that existing socks and other small articles are inconvenient to wash by a machine. In order to achieve the purpose, the miniature clothes treatment equipment comprises a first shell and a springback cavity; the springback cavity is formed in the inner side of the first shell; a cavity between the springback cavity and the first shell is a first cavity; a cavity in the inner side of the springback cavity is a second cavity; a clothes putting opening is formed in the first shell; a sealing cover covers the clothes putting opening; the clothes putting opening penetrates through the first cavity through a putting channel and then is communicated with the second cavity; the first cavity and the second cavity are communicated through a backflow pipe; and a one-way drainage device is further arranged in the backflow pipe. By means of the arrangement mode, water and electricity can be saved, the clothes treatment equipment is small, light, convenient to carry, high in working efficiency, few in component and simple in structure, and the production cost can be reduced.

The invention belongs to the environment engineering field, and specifically relates to a method for dewatering drying sludge after sewage treatment. The method comprises the following steps of adding coal ash and quick lime in the sludge; stirring; heating the above materials or introducing heat wind to the above materials; controlling the temperature of the sludge to be 50-80 DEG C; and at the same time, stirring for 10-30 minutes; adding ferric chloride and potassium permanganate to the above materials for hardening and tempering, wherein the additional amount of ferric chloride is 0.1-1% by mass of the weight of the sludge, and the additional amount of potassium permanganate is 0.05-1% by mass of the weight of the sludge; heating the above materials or introducing the heat wind to the above materials; controlling the temperature of the sludge to be 50-80 DEG C; and at the same time, stirring for 10-20 minutes. The method is low in cost and simple in process.

The present invention discloses a preparation technology of an anti-static and flame-retardant non-woven fabric. The preparation technology comprises the following steps of 1, performing vacuum dryingon raw materials at 80 DEG C overnight, and putting the raw materials into a mixer for mixing; 2, putting a mixed material into a melt-blowing spinning machine for spinning the mixed material into apolypropylene non-woven fabric; and 3, preparing 1,4-butylene glycol, benzophenone and absolute ethanol into a solution, soaking the non-woven fabric in the solution, performing ultraviolet lamp irradiation, and performing cleaning. The non-woven fabric takes PP resin as a non-woven fabric base material, and by adding a reinforcing filler into the base material, the mechanical performance and theantistatic performance of the non-woven fabric are enhanced; by adding a flame retardant into the base material, a synthesized flame retardant not only has good compatibility with a PP base, but alsocan enable the non-woven fabric to achieve the excellent flame-retardant effect; and the reinforcing filler and the flame retardant are directly blended with the PP resin, are different from finishingof finishing liquid, difficultly fall and lose effect, and have durable antistatic performance and flame retardant performance.

The invention belongs to the technical field of concrete products and particularly relates to a production method and a product of multifunctional lightweight sludge concrete. According to the method, sludge produced through sewage treatment reacts with quicklime firstly, and sludge slaked lime is formed; the sludge slaked lime is then mixed with cement and water, and the lightweight sludge concrete is formed. The production method cannot cause environmental pollution, is low in cost and can solve the problem about sludge treatment in the sewage treatment industry, the lightweight concrete with multiple purposes can be produced through recovery and utilization of the sludge, and the sludge concrete produced with the production method has the performance of light weight, pressure resistance and the like and can be taken as a building filling material.

A green tea processing technology comprises the following steps: 1) spreading: tea leaves are spread away from light in an environment with the temperature of 15-23 DEG C and the humidity of 75%-85% for 4-6 h; 2) fixation: fixation is performed at 500-600 DEG C for 1-1.5 min; 3) cooling: the leaves subjected to fixation is cooled in 30-60 s after fixation; 4) carding: carding is performed at 170-190 DEG C for 5-7 min; 5) tippy off: tippy off is performed at 120-125 DEG C for 8-12 min; 6) drying: drying comprises primary baking and after-baking, primary baking is performed at 120-130 DEG C for 7-9 min, and after-baking is performed at 120-130 DEG C for 4-5 min; 7) UHT sterilization treatment: the tea leaves are subjected to aseptic packaging after ultra-high-temperature instantaneous sterilization at the high temperature of 110-140 DEG C for 4-30 s. The tea blades of the prepared tea are light green and fresh in color, leaves are white, veins are green and edges are gold, tea residues are even and orderly in whole, tea soup is high and lasting in aroma, contains slight milky aroma or orchid aroma and is light green and transparent in color, and the tea tastes fresh and is sweet in aftertaste and is superior in quality.

The invention relates to the technical field of flame-retardant water-based polyurethane, and discloses a flame-retardant phosphate-containing diol modified polyurethane coating and a preparation method thereof. The coating comprises the following raw materials in parts by weight: 4,4'-dihydroxydiphenylsulfone, hydroxyethylidene diphosphonic acid, an esterification catalyst, polypropylene oxide glycol, 2,4-toluene diisocyanate, 1,5-pentanediol, dihydroxybutyric acid, a synergistic catalyst, a neutralizer and a chain extender. According to the flame-retardant phosphate-containing diol modifiedpolyurethane coating and the preparation method provided by the invention, polyurethane is modified by using dihydroxydiphenylsulfonyl ethylidene diphosphonate-diol, phosphorus and nitrogen elements are introduced into a molecular chain of a water-based polyurethane polymer to form O=S=O with higher energy and better thermal stability and an aromatic benzene ring group, so that the charring rate of the polyurethane is improved, the combustibility of the polyurethane is reduced, and the water-based polyurethane coating has higher thermal stability and flame-retardant effects.

The invention provides pickling equipment for ginger processing. The pickling equipment for ginger processing comprises: a machine body; and a cleaning structure, wherein the cleaning structure is arranged in the machine body, and the cleaning structure comprises a cleaning cylinder and a water spraying assembly. According to the pickling equipment for fresh ginger processing, the cleaning structure is arranged, the pickling equipment has the cleaning and automatic discharging functions at the same time; during cleaning, high-pressure water is sprayed out through a water spraying head, fresh ginger is continuously stirred in cooperation with a stirring piece, and then the fresh ginger is effectively cleaned, so that the cleaning effect is more uniform, comprehensive and rapid, the fresh ginger can be better dried in the later period; by arranging an electric telescopic rod and a supporting column to be used in cooperation, automatic discharging operation of the fresh ginger can be achieved, discharging becomes more convenient and more labor-saving, excessive manual operation is not needed, the whole device is very easy in the cleaning process, and the use requirements of people can be well met.

The invention relates to the field of mud dewatering and separating equipment, in particular to mud dewatering and separating equipment with a smashing function, which comprises a smashing box, a separating structure, a smashing structure, a fishing structure, a guiding structure, a dewatering structure and a collecting structure, the separating structure is installed at the top end of the smashing box, fishes and other organisms in mud of a pond or a river shoal can be separated and lifted out, the separated fishes and other organisms can be cleaned, and therefore the activity of the fishes and other organisms is guaranteed, and the effect of protecting the ecology is achieved; the smashing structure is arranged on one end of the smashing box, sand and stones in mud can be thoroughly crushed, so that later mud dewatering work and cake pressing reutilization are facilitated, the smashing structure can synchronously drive the fishing structure to work while performing smashing work, and separated fishes can be fished out from clear water through work of the fishing structure; therefore, later-stage releasing is facilitated, and the fishes can better survive.

The invention discloses a productization forming system for slurry shield construction waste slurry, and relates to the technical field of waste slurry treatment. A slurry shield construction waste slurry productization forming system comprises a supporting frame, a first-stage dehydration system, a second-stage dehydration system and a material forming system, wherein the first-stage dehydration system, the second-stage dehydration system and the material forming system are communicated in sequence. The primary dehydration system is arranged on the support frame and is used for dehydrating the waste slurry to obtain concentrated slurry; the secondary dehydration system is arranged on the support frame and is used for compressing and dehydrating the concentrated slurry to obtain a mud cake; the material forming system is arranged on the supporting frame and used for smashing the mud cakes into mud powder, mixing the mud powder with additional materials and pressing the mixture into blocks. According to the invention, the brick is formed through multi-stage dehydration and compression molding, and the baking-free brick product with uniform texture and up-to-standard strength can be directly obtained through the process.

The invention discloses a moisturizer and application thereof to a calligraphy moisturizing box. The moisturizer comprises ethyl alcohol, acetic acid and water, wherein the mass percentage of the ethyl alcohol, the acetic acid and water is 25%:2.5%:72.5%. The calligraphy moisturizing box comprises a box body, a box cover, buckle plates, an ink dish storage area, a bottled moisturizer and a writingbrush rack; the box cover is arranged on the box body; the buckle plates are arranged on two sides of the box body; the ink disk storage area is molded at the bottom of the inner side of the box body; and the bottled moisturizer is arranged on one side of the ink disk storage area. The ethyl alcohol does not perform a chemical reaction with the acetic acid in the moisturizer under constant temperature and constant pressure, the ethyl alcohol and the acetic acid can be stored stably for a long time, the ethyl alcohol has a dehydration effect on microorganisms such as bacteria, the acetic acidplays a role in damaging acid-base balance on microorganisms such as bacteria, after the ethyl alcohol and the acetic acid are combined, the anticorrosion effect is outstanding, and the moisturizer isweighed and prepared only according to a common solution preparation method.