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41results about How to "Not easy to dust" patented technology

One-time construction method for structural slab and surface layer of large-area emery floor

InactiveCN106836815AReduce loadGuaranteed clear heightBuilding material handlingTime efficientSurface layer
The invention discloses a one-time construction method for a structural slab and a surface layer of a large-area emery floor. According to the method, the structural slab and the surface layer of an emery floor are formed once, construction of the wear-resistant emery surface layer is performed between initial setting and final setting of concrete, a curing agent is used for curing after final setting, a finished product is well protected, the firm and wear-resistant floor about 3 mm thick is formed on a concrete structural layer, emery is scattered on fresh concrete of the structural slab directly, construction of a fine aggregate concrete leveling course is not needed, procedures are reduced, time is saved, a construction period is shortened, the cost is saved, clear height of a storey is guaranteed, load of the structural slab is reduced, phenomena such as hollowing, peeling, cracks and the like with the traditional method are avoided, by means of one-time forming of the structural slab and the emery surface layer of the floor, the emery surface layer and a base course are firmly bonded and not prone to hollowing or peeling, so that quality is guaranteed, and the floor is applicable to ground in industrial places, wharfs, parking lots, commercial stores, logistics warehouses, workshops and the like.
Owner:杭州二建建设集团有限公司

Distributing, positioning and carding device for natural cotton spinning

The invention discloses a distributing, positioning and carding device for natural cotton spinning. The device comprises a charging box, carding plates, a lower belt, an upper press belt, a primary hydraulic roller and a hot air box, wherein a box cover is clamped at the upper end of the charging box, and three carding wheel sets are arranged in the charging box from top to bottom. Natural cottonis added to the device from the upper end of the charging box and primarily carded by the carding wheel sets and enters the upper side of the lower belt from a discharging port, the primary hydraulicroller sprays water while rolling, and the cotton is conveyed onto the lower belt below the upper press belt and subjected to distributing, positioning and carding by the carding plates, so that the carded cotton is convenient to process. The natural cotton is wetted by water in a water cavity in the primary hydraulic roller when passing through the primary hydraulic roller and is not prone to dust and fiber rising and easy to card.
Owner:兰溪市京华纺织有限公司

Afterheat recycling device and method of high temperature flue gas containing high adhesive dust

The invention provides a device and a method capable of effectively cleaning dust on the surface of a heat exchange pipe and continuously operating for recycling afterheat of high temperature flue gas containing high adhesive dust and generating stream. According to the invention, a fuel is horizontally arranged, a heat pipe is used as a heat exchange element, the heat pipe is vertically arranged, and the lower segment of the heat pipe is at a free state for conveniently cleaning the dust. The heat pipe transmits the high temperature heat in the fuel to the water in a sleeve to evaporate water to generate stream so as to recycle the afterheat. A scraping plate is used as a dust cleaning device of the heat pipe in contact with the fuel gas, the scraping plate periodically moves up and down to scrap the dust at the outside of the heat pipe into a dust collection bin below a heat exchanger, and a sealed valve is arranged between the heat exchanger and a dust hopper to clean the dust online. According to the invention, the property of the heat pipe and the special scraping plate dust cleaning structure is utilized to solve the problem of cleaning the dust on the surface of the heat exchanger when recycling the afterheat of high temperature flue gas containing high adhesive dust.
Owner:NANJING SHENGNUO HEAT PIPE

Cement terrace production method

InactiveCN105544935ANot easy to run sandNot easy to dustFlooringWear resistantMaterials science
The invention discloses a cement terrace production method comprising the following steps: carrying out machinery cleaning so as to expose a fresh structure layer of the ground, and cleaning work surface garbage; watering the ground, and cleaning extra water and mud; pouring concrete on the fresh structure layer, and leveling the concrete; paving wear resistant aggregate on the surface of the concrete for pulping smoothening treatment in a concrete initial setting period, and spraying pulping aid agent on the surface of the concrete for pulping shining treatment. The cement terrace production method can effectively solve the existing cement terrace cannot reach decoration effect.
Owner:江卫强

Modified phenolic aldehyde foam plate and composite plate thereof as well as method for manufacturing modified phenolic aldehyde foam plate and composite plate

The invention relates to a phenolic aldehyde foam plate, in particular to a modified phenolic aldehyde foam plate and a composite plate thereof, and a method for manufacturing the modified phenolic aldehyde foam plate and the composite plate thereof. The phenolic aldehyde foam plate comprises a phenolic aldehyde foam layer, wherein at least one three-dimensional fluffy material layer is filled in the upper surface, the lower surface and the interlayer of the phenolic aldehyde foam layer. Compared with the prior art, in the modified phenolic aldehyde foam plate manufactured according to the invention, an expandable phenolic aldehyde resin composite material is filled in the gap of the three-dimensional fluffy material to ensure that the phenolic aldehyde foam and the three-dimensional fluffy material become a whole and overcome the defects of poor toughness, low strength, easy dusting and easy pulverization of the conventional phenolic aldehyde foam material. The modified phenolic aldehyde foam plate has the advantages of excellent toughness, high strength, and has small possibility of dusting and pulverization.
Owner:厦门高特高新材料有限公司

Preparation process of CF50 concrete

The invention relates to a preparation process of CF50 concrete. The CF50 concrete comprises the following components in parts by weight: 160 to 170 parts of water, 350 to 360 parts of cement, 140 to150 parts of coal ash, 30 to 40 parts of micro-silicon powder, 680 to 700 parts of medium sand, 1050 to 1100 parts of gravel, 38 to 45 parts of steel fiber, 0.5 to 1.0 part of dispersant and 9.1 to 9.5 parts of water-reducing agent, wherein the gravel comprises 700 to 750 parts of small gravel and 250 to 280 parts of big gravel, the grain size of the small gravel is 5 to 25 mm, and the grain sizeof the big gravel is 5 to 10 mm. In the scheme, adhesive adopts the cement, the coal ash and the micro-silicon powder, the gravel comprises big gravel and small gravel, the big gravel serves as aggregate, the small gravel is filled in the big gravel and is used for guaranteeing the structural strength of the concrete, the micro-silicon ash is used for enhancing the hardness of the concrete, the steel fiber is used for enhancing the toughness of the concrete, and the prepared concrete has good anti-cracking effect, is not liable to generate ash and has high structural strength.
Owner:成都精准混凝土有限公司

Dustproof self-cleaning combined self-draining water permeable brick

The invention relates to a dustproof self-cleaning combined self-draining water permeable brick. The dustproof self-cleaning combined self-draining water permeable brick is characterized by comprisinga first permeable layer, a second permeable layer and a lower inclined water diversion channel, wherein the first permeable layer has first water permeable pores; the second permeable layer has second water permeable pores. The dustproof self-cleaning combined self-draining water permeable brick is characterized in that the pore diameter of the second water permeable pores is greater than that ofthe first water permeable pores; the channel can drain and has certain capability of storing rainwater. The dustproof self-cleaning combined self-draining water permeable brick is provided with the inclined water diversion channel, so that the infiltration speed of the rainwater is effectively increased, and the adjusting capability for the water volume of the rainwater is high; in addition, a water diversion pipe in the bottom layer of the water permeable brick is obliquely arranged to realize a water storage effect; in addition, the blockage of the water permeable brick can be avoided; in addition, the dustproof self-cleaning combined self-draining water permeable brick can relieve the pressure of air drying, is not easy to dust and can reduce the haze phenomenon.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

Waste heat recovery device for moderate temperature flue gas containing high binding dust and method

The invention provides a device which can be used for effectively recovering waste heat in moderate temperature flue gas high binding dust and a method. The waste heat recovery device provided by the invention adopts a flue which is horizontally arranged, a heat pipe is used as a heat exchange element, and a heat pipe heat absorption section is placed in the flue and can be used for absorbing heat of the flue gas; the heat pipe is perpendicularly placed, the lower section of the heat pipe is positioned in a free state, and a heat release section of the heat pipe is placed in a gas pipeline and can be used for transmitting heat to the gas; the outer side of the heat pipe contacted with the flue gas is provided with a scraping plate, the scrap plate can periodically do up-and-down movement, nodal ash of the outer surface of the heat pipe is scraped and drops in an ash collecting bin arranged below a heat exchanger. The waste heat recovery device and the method provided by the invention utilize the combination of the characteristic of the heat pipe and a special structure that the dust is removed by the scraping plate, and solve the dusting problem that the heat exchanger is difficult to perform ash removal when waste heat of the moderate temperature flue gas containing the high binding dust is recovered.
Owner:NANJING SHENGNUO HEAT PIPE

Sulfur wet forming granulation production system and production process

The invention relates to the technical field of sulfur granulation, and in particular, relates to a sulfur wet forming granulation production system and production process. The sulfur wet forming granulation production system comprises a liquid sulfur filter, a liquid sulfur distributor, a granulation main machine, a product dehydration vibrating screen and a product conveying device which are sequentially arranged; an exhaust device is further arranged at the upper end of the liquid sulfur distributor, and a cooling water treatment integrated tank is further arranged at the lower end of the product dehydration vibrating screen; the cooling water treatment integrated tank comprises a concentration tank, a water inlet tank, a sedimentation tank and a clear water tank which are sequentiallyarranged, a fine particle spiral lifting device is arranged in the concentration tank, and a pH monitoring device is arranged in the clear water tank. According to the sulfur wet forming granulation production system and production process, a produced sulfur solid particle product is spherical in shape, smooth in surface, uniform in particle size, free of any sulfur dust, not prone to dusting during bulk transportation and bagging transportation and extremely low in surface moisture content.
Owner:余智敏

Ground processing method and its application in bank bursary ground processing

The invention discloses a ground treating method and applications in the ground treatment of a bank exchequer thereof. The method includes: after cleaning the ground, dipping for more than 30 minutes by a toughened agent, then using the toughened agent to dip the ground and finally using clean water to flush. The method can carry out treatment on the existing concrete ground or marble ground, but also can carry out treatment on a newly-built concrete ground or marble ground. When being applied to the ground treatment of a bank exchequer, the method can lead the ground hard to raise dust, hard to fall off, have a long service life, have better cost performance and be simple, convenient and practical from the angles of construction and maintenance.
Owner:李焰白

Detachable support structure for clothes dryer

The invention relates to a detachable support structure for a shed type clothes dryer. The detachable support structure comprises an upright post, a support seat fixed on the upper end of the upright post and at least one hanging arm laterally arranged on the support seat, wherein at least one plug hole is arranged on the upper end surface of the support seat from top to bottom; open slots communicated with each plug hole are arranged at the position, corresponding to each plug hole, on the external surface of the support seat from the upper end surface to bottom; at least one connection block, which is matched with the open slots, and insert rods, which extend vertically downwards relative to the hanging arms and are matched with the plug holes, integrally and sequentially extend on the internal ends of the hanging arms; and the hanging arms are downward inserted into the plug holes and the open slots through the connection blocks and insert rods at the internal ends. According to the support provided by the invention, the volume of the support seat is reduced, the detaching of the entire support is facilitated and the support is convenient for storage, package and transport. The entire support has a full rod-shaped external surface and hollow inside, thus the strength of the hanging arms is guaranteed, the hanging arms have smooth surface, the structure is contributed to being held by a user, and the surface has small possibility of generating dust.
Owner:胡杰波

Sponge fitness site and construction method thereof

The invention relates to a fitness site and particularly relates to a sponge fitness site which is characterized by mainly comprising a hardened road surface (1), a glue layer (2) and a waste rubber particle layer (3) from bottom to top, wherein the surface of the waste rubber particle layer (3) is provided with a hard ironing layer (4) formed by electrically heating an iron plate. The sponge fitness site provided by the invention has the advantages of elasticity, fast water penetration, large water storage capacity and long service life.
Owner:JIANGYIN CITY RENRENDA TECH

Conveyer system

InactiveCN102556574ANot easy to dustSolve the problem of being easily corroded and bondedConveyorsRollersChemical industryFertilizer
The invention discloses a conveyer system, belonging to a chemical industry production device. The conveyer system comprises a sealed shell, a feeding hole, a discharge hole, a driving wheel, a driven wheel, a bend wheel, a suction opening, a conveyer belt, a scraping device, a dumbbell basket type carrier roller, a carrier roller bearing seat and an adjusting screw rod. The conveyer system solves the technical problems that in the production process, dust is easily generated, equipment can be easily corroded, and bonding is easily caused. The conveyer system is mainly used as a chemical fertilizer production device or other chemical industry production devices. The conveyer system is low in manufacturing cost, long in service life and free from dust in the environment when in work, and ensures that the conveyer belt is not bonded with the dumbbell basket type carrier roller.
Owner:张宜延

Desktop bar code reading device for mobile payment

According to the desktop type bar code reading device for mobile payment, the light guide cover which uniformly diffuses the illumination light supplementing light source outwards is matched with the uniformly arranged lamp beads to serve as the illumination light supplementing light source, so that light generated by the illumination light supplementing light source can uniformly abut against the surface of a bar code to be shot. According to the method, two illumination light supplement control modes are set, under the first illumination light supplement control mode, the picture brightness can be rapidly adjusted to a proper range through fixed exposure parameters so as to adapt to reading of mobile phone payment codes with different screen brightness, and the mobile adaptability and the decoding success rate are improved. The light supplement with the set fixed time length enables the user to look continuous illumination and light supplement, and the illumination is soft, thereby facilitating the recognition and reading of the screen display bar code. Under the second lighting supplementary lighting control mode, fixed exposure parameters are adopted in the first two frames to adapt to reading of screen codes; other frames adopt an automatic adjustment exposure mode of the image sensor to adapt to reading of paper barcodes.
Owner:FUJIAN NEWLAND AUTO ID TECH CO LTD

Colored building site dust raising inhibition material

The invention discloses a colored building site dust raising inhibition material. The material is characterized by being prepared from the following raw materials in parts by weight: 0.3 to 0.8 part of nano cellulose fiber, 0.5 to 1.5 parts of pigment, 0.1 to 0.4 part of polyether modified amino-terminated water-soluble hyperbranched polyamide, 0.05 to 0.15 part of N-(trimethoxysilylpropyl)ethylenediamine triacetic acid sodium salt, 0.08 to 0.12 part of adenosine, 0.03 to 0.06 part of surfactant and 80 to 90 parts of water. The invention also discloses a preparation method of the colored building site dust raising inhibition material. The colored building site dust raising inhibition material disclosed by the invention is remarkable in dust suppression effect, long in dust suppression period, diversified in function, good in environmental adaptability, high in color fastness and uniform in dyeing.
Owner:WEIFANG ENG VOCATIONAL COLLEGE

Air conditioner telescopic cabinet with air humidifying function

The invention relates to the related field of air conditioners, in particular to an air conditioner telescopic cabinet with an air humidifying function. The air conditioner telescopic cabinet with theair humidifying function comprises a cabinet body, wherein the cabinet body is arranged in a wall body on the left side of a room in a fixed connection mode; a telescopic cavity with a rightward opening is formed in the end wall of the right side of the cabinet body; a telescopic device for stretching and retracting an air conditioner is arranged in the telescopic cavity; the telescopic device comprises an air conditioner base arranged in the telescopic cavity in a sliding connection mode; the air conditioner is arranged in the end wall of the right side of the air conditioner base in a fixedconnection mode; the air conditioner can be retracted into the cabinet when not used, and therefore dust is not prone to being accumulated in the air conditioner; and dropping water generated when the air conditioner is used can be recycled, and then the recycled water is used for humidifying air, so that the influence of dropping water on daily life of a user is avoided, moisture in the air canbe increased, indoor moisture is guaranteed, and the indoor space is more beneficial to work and life of the user.
Owner:PUJIANG COUNTY JINGJIU CRYSTAL CO LTD

Coining floor

The invention belongs to the technical field of floors, and specifically relates to a coining floor and a manufacturing method thereof. The specific technical scheme is that the coining floor comprises a bottom slag layer used as a base layer, the upper part of the bottom slag layer is laid with an emery layer, a polyethylene strengthening net layer, an ecological concrete layer, a graded broken stone layer, a second-class concrete layer, and an epoxy resin layer in sequence. The method for manufacturing coining floor comprises operation steps: 1, ramming a foundation flat, laying gravel slag on the foundation; 2, laying 120-mesh emery on the top of the bottom slag layer; 3, laying the polyethylene strengthening net layer on the top of the emery layer; 4, laying the ecological concrete layer on the top of the polyethylene strengthening net layer; 5, after concrete is solidified, laying a mixture of rock ballast and gravel on the top of the ecological concrete layer; 6, after the graded broken stone layer is solidified, laying a concrete layer on the graded broken stone layer; 7, coating a sealant and the epoxy resin layer on the top of the second-class concrete layer.
Owner:SHANGHAI FENGBANF BUILDING MATERIAL TECH CO LTD

A dust-proof self-cleaning combined self-draining permeable brick

The invention relates to a dust-proof self-cleaning combined self-draining permeable brick, characterized in that: the permeable brick includes a first permeable layer, a second permeable layer and a lower inclined water guide channel, the first permeable layer has a first permeable hole; The second permeable hole has a second water-permeable pore; it is characterized in that the pore diameter of the second water-permeable pore is larger than that of the first water-permeable pore, and the pore channel can not only drain water but also have a certain ability to store rainwater. The invention effectively increases the infiltration speed of rainwater by setting inclined water guide channels, and has a strong ability to adjust the amount of rainwater; and because the water guide pipes in the bottom of the permeable brick are arranged obliquely, it can play a role in water storage, and can avoid Permeable bricks are blocked, and can relieve the pressure of dry air, and are not easy to dust, which can reduce smog.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

A kind of compound improver and its preparation method and application

The invention discloses a compound improver used in noodles and its preparation method and application, comprising the following components by weight ratio: sodium alginate 11-13%, carrageenan 2-4%, psyllium seed gum 3- 7%, sodium polyacrylate 4-6%, compound phosphate 3-5%, salt 70-74%. The composite improver has the characteristics of good solubility, good mixing, high safety, easy use, rich nutrition, etc., and can improve the processing and cooking performance of noodles, so it has broad market prospects in noodles and other noodle products.
Owner:SHANDONG JIEJING GROUP CORP

A cf50 concrete preparation process

The invention relates to a preparation process of CF50 concrete. The CF50 concrete comprises the following components in parts by weight: 160 to 170 parts of water, 350 to 360 parts of cement, 140 to150 parts of coal ash, 30 to 40 parts of micro-silicon powder, 680 to 700 parts of medium sand, 1050 to 1100 parts of gravel, 38 to 45 parts of steel fiber, 0.5 to 1.0 part of dispersant and 9.1 to 9.5 parts of water-reducing agent, wherein the gravel comprises 700 to 750 parts of small gravel and 250 to 280 parts of big gravel, the grain size of the small gravel is 5 to 25 mm, and the grain sizeof the big gravel is 5 to 10 mm. In the scheme, adhesive adopts the cement, the coal ash and the micro-silicon powder, the gravel comprises big gravel and small gravel, the big gravel serves as aggregate, the small gravel is filled in the big gravel and is used for guaranteeing the structural strength of the concrete, the micro-silicon ash is used for enhancing the hardness of the concrete, the steel fiber is used for enhancing the toughness of the concrete, and the prepared concrete has good anti-cracking effect, is not liable to generate ash and has high structural strength.
Owner:成都精准混凝土有限公司

A preparation method of spherical formula granules and related products

The invention relates to a method for preparing spherical formula granules and related products. The spherical formula granules are intermediates of Chinese patent medicines and have good moisture-proof function. The preparation method is as follows: step 1), preparation of extract: Chinese medicine water Extract, centrifuge to remove impurities, concentrate the centrifuge to contain the extract that adapts to the moisture; step 2), mix the extract and auxiliary materials: take the extract, mix with auxiliary materials, heat, homogenize, filter, and make a mixture with good surface compatibility Step 3) preparation of microspheres: through high-frequency oscillation equipment or pressure atomization equipment, the mixture prepared in step 2) is dropped or sprayed into the cold well to form semi-solid microspheres of a certain particle size, and pass through a certain distance. The cold well environment of the temperature forms solid microspheres and collects them in the collector; step 4) drying: the solid particles are dehydrated at a suitable temperature to make spherical particles; step 5) coating: the spherical particles are coated Coat and get formula granules.
Owner:TIANJIN TASLY PHARMA CO LTD

A high-concentration organic waste liquid incineration equipment and process

The invention relates to the technical field of liquid waste disposal, in particular to a high concentration organic liquid waste incineration process and equipment using the incineration process. The equipment comprises a liquid waste tank, an incinerator, a waste heat recovery device, a desulfurization and denitrification device, a dust remover and a chimney. A preprocessing device and a gas-solid separator are arranged in front of the incinerator. A delivery pump used for pumping liquid in the liquid waste tank to the preprocessing device is also arranged in front of the incinerator. The incinerator is a D-type furnace which is provided with an atomization combustor. The high concentration organic liquid waste incineration process and equipment not only can substantially reduce harmful gases, but also can effectively separate salt from liquid waste so as to meet emission requirements. The high concentration organic liquid waste incineration process and equipment are suitable for environment-friendly disposal of high concentration organic liquid waste.
Owner:GUANGDONG EACOON ENERGY TECH CORP LTD

Cyanuric acid lead compound stabilizer production system and processing method thereof

PendingCN107383430ANot easy to dustEnsure application security performanceCoatingsMetallurgyFreeze-drying
The invention discloses a cyanuric acid lead compound stabilizer production system and a processing method thereof and belongs to the technical field of production of thermal stabilizers. The cyanuric acid lead compound stabilizer production system comprises a stirring device, a drying device and a crushing device which are sequentially arranged and connected according to the technological process, wherein the stirring device comprises a reaction kettle, a stirring rod, a discharging pipe and a water pump, the stirring rod is directly inserted into the middle lower part of the inside of the reaction kettle, the discharging pipe is communicated with the bottom of the reaction kettle, and the water pump is communicated with the upper part of the reaction kettle through a water pipe; the drying device is a vacuum freeze drying device; the vacuum freeze drying device comprises a feeding and discharging guide rail, a freeze-drying bin, a cold trap and a vacuum pump; the feeding and discharging guide rail is connected with a guide rail arranged in the freeze-drying bin, the cold trap is arranged in the freeze-drying bin, and the vacuum pump is communicated with the freeze-drying bin through a pipeline. The technical problems that dried hard hardened structures are difficult to crush and crushing fineness is excessively large in the prior art are solved.
Owner:马鞍山市宝博科技有限公司

Plastering material

ActiveCN104446315ASolve the lack of stickinessSolve the problem of easy dustingMagnesiumBuilding material
The invention relates to a plastering material. The plastering material is prepared from the following components in parts by weight: 20-30 parts of lime, 5-7 parts of honey, 8-10 parts of brine, 5-7 parts of magnesium oxide and 100-120 parts of water. The materials are combined together to prepare the plastering material, and the plastering material has good viscidity and high hardness, can replace the lime to be used in various aspects as a building material and overcomes the defects that the lime has poor viscidity and is easy to peel off as a building material.
Owner:NANTONG JULI SPRING SUSPENSION BRACKET

Sealing bearing system and its assembling method

The invention relates to a sealed bearing system and the assembling method thereof, comprising hollow bearing seat with two open ends, sliding bearing arranged in the bearing seat, rotating shaft withone end extending through the sliding bearing into the bearing seat and the other end arranged outside the bearing seat, sealing cover for sealing the lower-end opening of the bearing seat, and sealing sleeve, and it uses the sealing sleeve and the sealing cover to seal the two open ends of the bearing seat to seal lubricant in the bearing seat to keep the sliding bearing and the rotating shaft in a lubricating state, thus having advantages of prolonging service life the sliding bearing, reducing noises, uneasy to leak oil, and dust-proofing.
Owner:可斯塔·佩龙尼斯

Water-soluble efficient plant fertilizer and preparation method thereof

The invention discloses a water-soluble efficient plant fertilizer and a preparation method thereof. According to the invention, water-insoluble chitin or chitosan, octadecanamide, citric acid and magnesium oxide are subjected to a mixing heating reaction to generate a coating composition, and the surface layers of urea-based compound fertilizer particles are coated with the coating composition, so that the water-soluble plant fertilizer with excellent properties can be produced.
Owner:杨建波

A kind of super absorbent resin and its preparation method and application

The invention discloses high water absorption resin and a preparation method and application thereof. The high water absorption resin is water absorption resin with a dense hole structure and the absorption resin is prepared in the mode that acrylic acid, acrylate or acrylic acid derivatives which serve as monomers are neutralized with alkaline substances and deionized water and then polymerized under the action of a crosslinking agent and an initiator; the average pore size of the water absorption resin is 10 to 15 micrometers. The high water absorption resin can be applied in a water absorption or blood absorption product and is lightly-crosslinked polyacrylic acid (polyacrylate) type high water absorption resin. Since the dense hole physical structure is formed, the specific surface area of the product is improved so as to improve the speed of absorption.
Owner:ZHONGSHAN HENGGUANGYUAN ABSORBENT MATERIAL CO LTD

A kind of method for preparing ammonium sulfate from phosphogypsum and increasing the granularity of ammonium sulfate

The invention discloses a method for preparing large particle ammonium sulfate from ardealite. The method comprises the steps of firstly adding water into ammonium sulfate generated by conversion of ardealite, ammonia gas and carbon dioxide according to certain proportion and mixing, after heating and dissolving through stirring, adding coal ash and white carbon black for purifying the ammonium sulfate solution, filtering the solution, standing the filtrate for a while, then evaporating and concentrating the filtrate, stopping heating when the density of the concentrated solution is 1.20-1.36g / cm<3>, transferring the concentrated solution to a 80-96 DEG C crystallizing tank, beginning stirring, after the temperature is constant, adding a crystallizing modifier, preserving heat for 20-40 minutes, then adding ammonium sulfate seed crystal, beginning programmed freezing when the seed crystal is not dissolved completely, stopping cooling when cooling to be 30-42 DEG C, filtering, and stoving so as to obtain large particle ammonium sulfate crystal product. The ammonium sulfate product prepared by the method has high purity, good chroma, and large particle, and is not easy to cake; in addition, the preparation method is simple in technological processes, low in production cost, and easy to realize industrialization.
Owner:WENGFU (GRP) CO LTD

Plastering material

A plastering material is prepared from the following components by weight: 20-30 parts of putty powder, 5-7 parts of honey, 8-10 parts of brine, 5-7 parts of flour and 100-120 parts of water. The putty powder, the honey, the brine, the flour and the water are used in combination, so that the plastering material is good in adhesion and high in hardness, and the problems that a stone material as a building material is lack of viscidity and easy to dust can be solved.
Owner:哈尔滨和谐旺科技开发有限公司
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