Three yuan particle papermaking retention and drainage system

Recycled paper refers to paper composition containing 50% or more of the waste paper pulp, wood pulp and paper and general ingredients will contain 80 percent of raw wood pulp. Recycled paper wood pulp and paper manufacturing processes and the general is completely different, the need for the production of recycled paper a lot of chemicals and water, and the need to consume a lot of power and other resources, but also useful in screening and deinking and other paper program. Instead, recycled paper and wood pulp and paper manufacturing process is generally about the same, the main difference is that the green paper needed raw materials and throughout the manufacturing process are in line with the provisions of international environmental standards ....... Since residual lignin fibers and pulp chemicals used in the process, so that the paper is always a shade of yellow to optical principle, namely paper absorbs natural light of a shorter wavelength of light, reflected light blue - violet visible inadequacies, which led to We saw yellow paper. That is, the use of fluorescent whitening agent in the ultraviolet (W) of the stimulus, the release of 420-450nm wavelength of fluorescence, to supplement the shortage of blue - purple section visible wavelengths and increase the total reflected light depends on the amount of light, so, increase the sense of white paper. Optical brighteners are dyes having an optical effect increased perception of white, and therefore, we are also known as optical brighteners optical brighteners, bleaching chemicals alone can not achieve satisfactory whiteness and excess bleach can damage the fibers, Thus, optical brighteners are considered papermaking white paper ...... .. most cost-effective fluorescent whitening agents are mostly of paper with anionic direct dyes. Optical brighteners typically used in papermaking can be divided into three categories according to their degree of sulfonation: ???? general types: the fiber has sufficient affinity, good pH stability, and good compatibility between starch properties, belonging to four sulfonic acid type fluorescent brighteners, such as NT-3, NT-3-B. ???? Direct type: good fiber affinity, high fluorescence intensity, with less economical, but poor pH stability below disulfonate type of fluorescent whitening agents, such as NT-8. Coating type: and affinity fibers poor and difficult to adsorb to the fiber, but it is dispersed in the paint in any conditions, in particular, can adapt to a variety of adhesives and cationic materials, high cost, are six sulfonic acid fluorescent brighteners , such as fluorescent brighteners RSB. Special type: and fiber has a high affinity, excellent weathering performance, finished paper capacity of high brightness, acid and alkali resistance is also good, but the price is more expensive, such as fluorescent brighteners FNW ...... papermaking systems. the addition of alum have some impact on the whitening effect, first of all, with the addition of alum, pH drop in the system; increase followed by alum dosage electropositive enhanced interference brightener enhancement; third alum containing more iron, and brighteners iron, copper ions patience poor ...... using a catalyst, the role of mechanical forces and thermal separation of plant fiber, whichever fiber paper, and the rest as a plant powder. The principle is based on the internal components of the uneven distribution of plant grass, stems screens and conduits, leaves vein is elongated fiber cells, the main ingredient is cellulose, hemicellulose and lignin, the wall thickness The cavity is narrow, there is a strong anti-pull; other parts of the short round of cells, components primarily proteins, lipids or nitrogen-free extract, which thin wall cavity width, or bonding between the fibers and between them very weak mechanical strength is different, so the effect of applying heat, mechanical and catalysts derived from straw to separate. The whole process does not add any chemicals, only a small amount of catalyst, the total drainage pH value of 6-8, with water by simple flocculation settlement after the whole process can be recycled, direct emissions can be a fruitful field, and thus to solve the pollution of toxic black liquor question ...... .. clean straw pulp is by researchers at Beijing Environmental Technology Information Centre Hyflux, after more than a decade, the successful development of a major research inventions. Pollution mechanical straw pulp technology, completely solves the chemical papermaking process caused by environmental pollution, application and promotion of this technology, manufacturing enterprises and the whole society will bring enormous economic and social benefits for the entire paper development industry will have an immeasurable impact. This new technology has won state patents and patent assessed as excellent ...... three yuan particle retention and drainage system Paper With modern paper machine to keep the high-speed, large-scale, dual-network technology, the development of neutral papermaking, Common units and dual retention systems are becoming increasingly difficult to obtain satisfactory retention and drainage effect and efficient system of retention and good sheet forming increasingly become one of the major research topics wet end chemistry.海奥巴 chemical on many years of experience with a large number of paper machine retention, combined with foreign advanced technology papermaking retention and drainage and retention properties of the introduction of foreign new products that can be more effective in improving the performance of papermaking machine, increasing machine to retain and filter the effect of water, reduce production costs, improve productivity and product quality. Three yuan particle retention and drainage systems: three yuan particle papermaking retention and drainage system is composed of new product features particulate retention accelerator, cationic branched polymer and micro-polymer latex retention aid of three parts. → mixed slurry tank pump → → punch me high pressure screen → → headbox ↑ ↑ ↑ particle accelerator cationic retention micro-polymer three yuan particle retention and drainage technology, major steps: 1, particle retention accelerator strongly electropositive polymer charge neutralized by the negative charge of each colloids pulp fines, fillers, and resins carried equilibrium wet end potential, to reduce interference anionic impurities reduce the repulsion between the colloidal particles; 2 cationic branched polymer is a special branched molecular structure of polyacrylamide retention and drainage aids, by bridging particulate retention bridging flocculation agents to promote micro and small filler with pulp fibers to form the size and compact solid floc, strengthen retention effect, while close and firm floc to accelerate the dehydration process; 3, the size of the floc cationic branched polymer bridge formed by high shear dispersion was stirred again after destruction, micro copolymer emulsion retention aid reconnected by charge attraction will have scattered small floc, thus further strengthening the fines and filler retention, strengthen accelerate drainage, and improve the machine speed. Ternary particle retention and drainage system is characterized by: 1), three particles papermaking retention and drainage system, before the cationic branched polymer is added, previously added particle retention agent to promote a strong positive surface charge by charge neutralization, the negatively charged fine fibers, fillers and other colloidal firmly adsorbed on the fiber, increase pulp fines and wet chemical additives (such as sizing agents, dyes, reinforcing agents, etc.) retention better control of drainage sheet effect. While fine materials and fiber flocculation makes fine fiber layer material is no longer plug the gap, the water can freely flow through unimpeded fiber layer, strengthen accelerate drainage, and improve the machine speed. 2), ternary particles papermaking retention and drainage system, unique on a branched molecular structure and molecular chain cationic branched polymers of unsaturated adsorption point comparison standard linear polymer having the following characteristics: ① calcium carbonate and other ash retention capture high; ② ash retention in the paper evenly distributed; ③ improve the alignment structure of the fiber. Cationic branched polymer bridged by bridging flocculation agent retention and promotion of micro and small packing NA pulp fibers to form a floc size and tight, strengthen dewatering fines and filler retention and slurry again . 3), three paper particle retention and drainage systems, the micro-polymer emulsion retention agent has a unique micro-crosslinked structure, can provide excellent retention and drainage performance. The role of micro-polymer emulsion aid retention agents and pulp floc between belonging to attract short-range effect of the charge, the system filler and fiber fragments and other small tablets to have good adsorption capacity, the resulting floc dense, water low, open sheet structure, easy to be dried in the drying section, in favor of the machine running at high speed. 4), ternary particles papermaking retention and drainage system, under high shear, three particle retention and drainage techniques that re-dispersed, then flocculation special flocculation behavior and structure repeatedly conducted at high speed high shear state machine to achieve high retention rate, and then adjust the paper wadding polymer material makes the micro floc structures small and uniform scale, effective solution to the high-speed machine system to maintain efficient retention of paper The shaping of adverse effects. Further, since the micro-flocculation group small and uniform, paper materials drainage is improved, the wire section dewatering been enhanced to improve the sheet into the press area of ??dryness, effectively improve the operating efficiency of the machine, while the paper improve drainage and feed the wire section of the paper dehydration status page z filler distribution tends to uniform, effectively reducing two-sidedness of the sheet, and the machine can run at high plus filling conditions. Usage: 1, particle retention accelerator by 1% to 10% concentration in the dissolving tank fully dissolved, according to the degree of white water closure system, the ratio of mechanical pulp, broke back dosage reference 0.05-0.3% (oven dry tonnes pulp) to determine the most suitable dosage metering pump to accurately add. The most suitable point can choose to add a thick white sink, broke pulp pool, copy forebay or from the front pump. The product should be now with the current storage time over six hours will affect its results. 2, cationic branched polymers when added to the stirring uniform does not exceed 60 ° clean tap water to prevent clumping, 0.03-0.075% concentration sufficient to dissolve at least 45 minutes, stirring speed of not more than 120r / min. Added with 60 mesh filter, using a screw metering pump before the pressure screen was added. Dosage 100-300 g / ton of paper. 3, the micro-polymer latex retention aid at stirring evenly added to no more than 60 ° clean tap water to prevent clumping, 0.05-0.1% concentration sufficient to dissolve at least 45 minutes, stirring speed of not more than 120r / min. Micro-polymer latex retention aid according to 100-300 g / ton of paper added to the pressure on the screen after the measurement. Integrated brand ---- ACPAFLOC series paper retention and drainage (Australia introduced exclusive agent) ---- France SNF SNF papermaking retention aid ---- BASF BASF (formerly Ciba Ciba) Paper Retention Kemira Kemira filter aids ---- ---- American papermaking retention aid Nalco NALCO papermaking retention aid ---- Mitsubishi papermaking retention aid ---- American Ash Portland Ashland (Degussa) papermaking retention aid long-term leadership and world-class suppliers of papermaking chemicals, focusing on the accumulation and Germany's BASF BASF, Ashland Ashland, Ciba Ciba, the United States Nalco NALCO experienced Finnish Kemira Kemira other world-class enterprise cooperation. Papermaking retention aids include Britain, France, the United States, Germany, South Korea, the world's high-end technology products, the introduction of Australia's more exclusive class products more cost-effective advantage of the company consisting of independent brands. The company of "puerile" principle, the products are widely used in rotary machine, fourdrinier paper machine production culture paper, corrugated paper, cardboard, paper yarn, toilet paper and other paper, suitable for low, medium and high speed different machine. Great sales, inventory is abundant, a lot of cash to ensure timely delivery. Companies with diverse and high-quality paper Retention products and professional retention and drainage techniques known in the industry outside: a variety of imported brands original supply, quality assurance. Products, including solid and liquid, complete model specifications for different customers in different machine processes, choose the most suitable products, reduce costs and improve production efficiency. Sales technical staff after the company co-leading supplier of international companies specialized training, and have many years of experience in the machine on-site machine. The company can send technical personnel door leading to provide PAPERMAKING application site technical services, the paper analyzes and related causes streaky look, retention agents reasonable amount of formulation design, retention and drainage systems to optimize use of the program designed to provide long-term technical support and guidance. Provide customers with products experimental sample form, free of charge to customers on lab samples. Several sets of professional retention programs and technologies: dual-polymer dual paper retention and drainage systems; ultrafine dual paper retention and drainage programs; Bentonite particles dual papermaking retention and drainage system; three yuan double PAPERMAKING help filter technology; the new tri particulate papermaking retention and drainage technology.