Polyaspartic acid water reducer, polyaspartic acid dryer, polyaspartic acid production equipment, naphthalene series water reducer | drying equipment | drying equipment

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Content of drying equipment
Polyoxylic acid water reducing agent, polyoxylic acid dryer, polyacetic acid production equipment, naphthalene series water reducing agent
Author: Gu Zhijun | original source:Changzhou dryer|Time: July 22, 2014

Polyarsenic acid water reducerPolyaspartic acid dryerPolyaspartic acid production equipmentNaphthalene superplasticizerPolyaspartic acid centrifugal spray dryer-Changzhou Keda drying equipment Co., Ltd,sinochemtest.comwww.kddry.cnwww.kddry.netwww.ganzaojishebei.net

It is a kind of high performance water reducing agent and a kind of cement separating agent in the application of cement mixed soil. Chemically, it can be divided into two types: methylpropionic acid, side chain of which is phosphoric acid group and MPEG (methoxy polythylene glycol), with polymerized structure. The other is that the main chain is poly (propionic acid), the side chain is methylpropionic acid, the side chain is methyl propionic acid, and the side chain is methyl propionic acidPolyether structure.

Of course, many similar products are derived. Polyurethane urethane ester is easy to hydrolyze under the condition of strength and toughness of mixed soil and the process is complex, so its dosage may be reduced. The strength of cement soil is treated by the ratio of water to cement, w / C-water cement ratio. When the w / C is lower, the strength of the mixture material is greater, which is also the reason for the name of water reducing agent for mixed soil.Of course, the construction of mixed soil, the mixture must maintain a certain degree of workability and fluidity, the conventional detection is the horizontal drop of mixed soil.
Before the appearance of polyphosphate additives, there were lignin phosphate additives, such as: phosphate formaformaldehyde condensate, trimer formaldehyde condensation polymer, propylene; acid salt formaldehyde condensate,; base phosphate a; condensates, etc. these products have certain advantages and have certain advantages in sand control sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand control sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand sand to sand to sand to sand to sand to sand to sand and other materials with large mud contentOccupancy rate, in concrete engineering have different levels of application.
The advantages of high-performance mixed soil are not only high strength, but also a series of corresponding superior properties. The early strength develops rapidly, that is, only a short curing age is needed in winter to ensure the progress of the project. It has long-term durability, strong chemical corrosion resistance, and can be used in various special processes;In the technical implementation of preparing high-performance mixed soil, the key is to reasonably use high-performance chemical admixtures, especially the high-performance water reducing agent with great water reducing effect, proper air entrainment, and can reduce and prevent the loss when the level drops.

Polycarboxylic acid superplasticizer

High effect water reducing agent is directly adding proper amount of polyol modifier and introducing sorghum base in the synthesis process of polyphosphate superplasticizer copolymer, so as to increase the grafting density of side chain and enhance the separation ability. It can be widely used in highway, bridge, sorghum, tunnel, high-rise building and other processes.
Superplasticizer has a strong separation effect on cement, which can increase the dynamic of cement mixing flow and the horizontal drop degree of mixed soil, at the same time, it can significantly reduce the small water consumption, significantly improve the workability of the mixed soil, and lower the horizontal drop loss of the mixed soil.
Product parameters

Performance index of mixed soil of polyoxylic acid superplasticizer
Water reduction rate /%, not low
fourteen
The ratio of bleeding rate /%, is not high
ninety
Gas content /%
≤3.0
Difference of setting time
Initial setting
-90-+120
Final coagulation
Compressive strength ratio /%, not low
1d
one hundred and forty
3d
one hundred and thirty
7d
one hundred and twenty-five
28d
one hundred and twenty
Shrinkage ratio /%, not high
one hundred and thirty-five
Product advantages

It has good compatibility with all kinds of cement, and the horizontal falling degree of mixed soil is very good, which can prolong the construction time of mixed soil.
High water reduction rate and low shrinkage.
Early, late strength.
The product has low ion content and low alkali content, which is beneficial to the durability of mixed soil.
The production process of this product is pollution-free, free of methane, in line with ISO 14000 environmental management international standards, is a green environmental protection products.
Scope of application

It is suitable for prefabrication and current mixed soil, reinforced mixed soil and prestressed mixed soil in engineering construction of high-speed railway, passenger dedicated line, industrial and civil buildings, roads, bridges, port ports and wharves, airports, etc.
It is especially suitable for the process of mixing soil with long construction time and large requirement for horizontal drop of mixed soil, such as nuclear power plant engineering.
Methods adopted

Content range: usually, the solid content of 20% is 0.5-1.5% of the weight of cementitious material, and the recommended solid content is 1.0%.
Add method

Adding propionic acid into peristaltic pump can ensure uniform feeding, accurate measurement, adjust the proportion of feces and improve the quality;
Peristaltic pump through the hose extrusion flow, liquid and pump body do not contact, cleaning simple, anti-corrosion, cost-effective.
Ralph peristaltic pump bt600s used in experiment and pilot test
Flow range: 0.3-102 (L / L)
Reeve peristaltic pump wg600s used in production
Flow range: 24-780 (L / L)

Polyarsenic acid water reducerPolyaspartic acid dryerPolyaspartic acid production equipmentNaphthalene superplasticizer——Changzhou Keda drying equipment Co., Ltd,sinochemtest.comwww.kddry.cnwww.kddry.netwww.ganzaojishebei.net

Spray drying is the most widely used technology in liquid process forming and drying industry. It is most suitable for generating powder and granular solid products from solution, emulsion, suspension and slurry liquid raw materials. Therefore, spray drying is an ideal process when the high and low distribution of particles, residual water content, deposition density and particle shape of the product must meet the precise standardsArt


Centrifugal spray drying equipment
Centrifugal spray drying equipment has high automation level, easy operation and good product quality. It is suitable for solutions, emulsions, suspensions and even liquids with viscosity.
2 Overview
The so-called centrifugal spray drying equipment is the use of centrifugal atomizer to dry some liquid substances. It is one of the most widely used drying equipment in industrial production. Spray drying is the most widely used technology in liquid process formation and drying industry. It is most suitable for the production of powder and granular products in solution, emulsion, suspension and pumpable lake like liquid raw materials.Spray drying is an ideal process when the particle height distribution, residual moisture content, deposition density and particle shape meet the precise standards.
3 characteristics
It can evaporate 95% - 98% of water in the hot air stream in an instant. The drying time is only 5-15 seconds.
2. The special air distribution device reduces the resistance of the machine and effectively provides the air handling device of the dryer.
3. The production process is simplified and suitable for continuous control production. The liquid with moisture content of 40-90% can be dried into powder at one time, which can reduce crushing, hammer separation and other processes and increase product purity.
The drying process is completed in a short time, which is suitable for the drying of heat sensitive substances, and can keep the color, aroma and taste of the substances.
The separation, fluidity and solubility of the product are very good, and the granularity, looseness and moisture of the product can be adjusted within a certain range
4 working principle
The working principle of centrifugal spray drying equipment is as follows: air enters the air distributor at the top of centrifugal spray dryer through filter and heater, and hot air enters into the dryer in a spiral shape evenly. The feed liquid is transported to the centrifugal atomizer on the top of the dryer through the material tank filter through the pump, so that the material liquid ejects extremely low mist droplets, the material liquid and hot air flow together, and the moisture rapidly evaporatesThe product is dried in a very short time, and the product flows out through the bottom of the drying tower and the cyclone separator, and the waste gas flows out through the fan.
Customers can choose heating mode, dust collecting and dedusting method according to the actual situation.
5 application scope
Food industry: milk powder, Coix, milk powder, milk substitute, pig blood powder, protein (yellow), etc.
Food and plants: oats, chicken soup, coffee, instant tea, seasoning meat, protein, high bean, peanut protein, hydrolysate, etc.
3 sugars: corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc.
4 plastic resin
Chemical industry: sodium bromide (potassium), basic dye pigment, dye intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid, amino acid, silica, etc.Ceramics: sol-gel, ceramic tile materials, magnesium sol, talc powder, etc.
Summary of centrifugal spray drying equipment
Working principle of centrifugal spray drying equipment:
The air is filtered and heated, and enters the air distributor at the top of the dryer, and the hot air enters the drying chamber evenly in a spiral shape. The material liquid is (rotated) sprayed into very fine mist like droplets by the rapid centrifugal atomizer on the top of the tower body. It can be dried into products in a very short time by parallel flow contact with hot airEmptying machine
Characteristics of centrifugal spray drying equipment:
The drying speed is fast, the surface area of the material liquid increases after atomization, and 95% - 98% of the moisture can be evaporated instantly in the hot air flow. The drying time is only 5-15 seconds, and the instant drying feature is equipped.
2. The special air distribution device reduces the resistance of the machine and effectively provides the air handling device of the dryer.
3. The production process is simplified and suitable for continuous control production. The liquid with moisture content of 40-90% can be dried into powder at one time, which can reduce crushing, hammer separation and other processes and increase product purity.
The drying process is completed in a short time, which is suitable for the drying of heat sensitive substances, and can keep the color, aroma and taste of the substances.
The separation, fluidity and solubility of the product are very good, and the granularity, looseness and moisture of the product can be adjusted within a certain range.
6 scope of application
Food industry: milk powder, Coix, milk powder, milk substitute, pig blood powder, protein (yellow), etc.
Food and plants: oats, chicken soup, coffee, instant tea, seasoning meat, protein, high bean, peanut protein, hydrolysate, etc.
3 sugars: corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc.
4 plastic resin
Chemical industry: sodium bromide (potassium), basic dye pigment, dye intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid, amino acid, silica, etc.Ceramics: sol-gel, ceramic tile materials, magnesium sol, talc powder, etc.
Several common centrifugal spray drying equipment:
① Dis series rapid centrifugal spray drying equipment
It is suitable for chemical industry, light industry, food, medicine, building materials, environmental protection and other industries. The organic and inorganic substances of the above solution, emulsion and colloidal liquid are transformed into powder fine-grained products after a few seconds by spray drying equipment. The heat sensitive products can keep color, aroma, taste, good solubility, high purity, shorten the processing sequence and improve the production efficiencyNo environmental pollution, energy saving and automatic continuous production.
② LPG series rapid centrifugal spray drying equipment
LPG rapid centrifugal spray drying equipment is a kind of special drying equipment which is suitable for drying emulsion, suspension, glue, solution and other liquids. It is used in the drying of polymers and resins; fuels and pigments; ceramics, glasses, rust removers, insecticides; enamel, water compounds, dairy products; washing powder and surface active class; organic and inorganic compounds dryingThe reasons for this.
③ LGZ series rapid centrifugal spray drying equipment
LGZ series of rapid centrifugal spray drying equipment can use solution, emulsion, suspension, paste materials, spray drying into dry powder, fast speed, high efficiency, less process. It can maintain the color, taste, fragrance, dry powder solubility, purity, good operating environment, basic operation automation is widely used in chemical, petrochemical, metallurgy, food, medicine, construction, ceramicsAnd forestry and chemical industry departments
7 technical standards
Model item / parameter
five
twenty-five
fifty
one hundred and fifty
200-2000
Inlet temperature
140-350 automatic control
outlet temperature
80-90
Maximum evaporation of water (kg / h)
five
twenty-five
fifty
one hundred and fifty
200-2000
Transmission form of centrifugal spray head
Compressed air drive
mechanical drive
Maximum speed (r.p.m)
twenty-five thousand
eighteen thousand
eighteen thousand
fifteen thousand
8000-15000
Diameter of spray tray (mm)
fifty
one hundred and twenty
one hundred and twenty
one hundred and fifty
180-240
heat source
Electricity, electricity
Steam + electricity
Steam + electricity, fuel oil, gas, hot blast stove
Maximum power of electric heating (kw)
nine
thirty-six
seventy-two
ninety-nine
Overall dimension (length × width × large) (m)
1.8×0.93×2.2
3×2.7×4.26
3.5×3.5×4.8
5.5×4×7
According to the actual situation
Dry powder recovery%
≥95
Note: the water evaporation capacity is related to the material characteristics, hot inlet air and outlet temperature. The outlet temperature is 90C, and the water evaporation curve is shown in the figure above (for selection). As the product is updated, relevant parameters are subject to change without prior notice.