Paper Making Machinehttp://www.zdqk.net/blog/Paper MachineRainbowSoft Studio Z-Blog <#ZC_BLOG_TITLE#>zh-CNCopyright www.zdqk.net Your WebSite. Rights Reserved.Thu, 23 Aug 2012 05:20:47 +0800Heat Recovery Systemnull@null.com (blog)http://www.zdqk.net/blog/post/Heat-Recovery-System.htmlFri, 10 Aug 2012 00:11:05 +0800http://www.zdqk.net/blog/post/Heat-Recovery-System.html     Heat recovery system includes two types, air-air heat exchange and air-water heat exchange. The multi-step heat recovery unit can fully utilize the energy after being best on the requirements of environment and process technology.

    Air-Air heat recovery unit heats the air by using the remaining exhaust heat from hood so as to reach the purpose of recovering the heat energy. The heat recovery unit is in pipe-laid structure, which is easy to clean and lasts a long life. The pipe and the panel is connected by the expanded pipe or special rubber-alloy joint.

    Air-Water heat recovery unit heats the process water or ventilating water by using the heat of exhaust air. It has direct and indirect heat exchanging types.

# Clients Country Paper Width/Speed Supplied Equipments
   
1 Meilun Paper Co., Ltd. of Shouguang Domestic Low weight coated board paper   Heat recovery system
2 Chenming Pulp & Paper Co., Ltd. of Zhanjiang Domestic Fine paper, tissue paper   Heat recovery system
3 Guangzhou Wanlida Paper product Co., Ltd Domestic Sulfate carton board paper 5760/850 Heat recovery system

From the very beginning of our establishment, we have been devoted to the research, development, and application of modern paper making, ventilation and drying technologies, and we have been engaged in the manufacturing of pulp machine, coater, closed hood of paper machine, heat recovery system, air supply system, Yankee hood, through air dryer, hot air drying box, air turner, paper workshop ventilation equipment, centrifugal fan, axial flow fan, dust removal equipment, noise control equipment, pulp machine, drying system, crescent tissue making machine, reconstituted tobacco paper making line and special paper equipment. All of our products have been well received by customers from Thailand, Indonesia, Vietnam, Japan, Australia, Russia, Azerbaijan, Egypt, Turkey, France, Germany, the United States, Brazil, and so on.

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Closed Hoodnull@null.com (blog)http://www.zdqk.net/blog/post/Closed-Hood.htmlFri, 10 Aug 2012 00:06:44 +0800http://www.zdqk.net/blog/post/Closed-Hood.html
    To meet the requirements of high dew point, convenient tendering and neat looking, the closed hood is constructed of the following structure and equipped with various accessories:

    The whole hood of closed hood is demountable modular structure. The size of each panel is maximized to reduce the sealing area to the greatest extent No patchwork for the inner sheet of each panel and least rivets are used.

    Connections between the inner sheet and the aluminum framing are tightly sealed that the damp air cannot penetrate into insulation materials. This is realized by specially designed aluminum profiles and sealing materials.

closed-hood-2     closed-hood-3

    The sealing elements used at different places are resistance to temperature and aging.

    Connections between panels and connections between panel and hood framing are designed in labyrinth structure and padded with sealing elements that has enough pressure ratios.

    The roof panels are well reinforced so that man can walk on it.

    The hood framework is of carbon steel, which is surface treated by sand blasting to reach the level of Sa2.5 before coated with temperature resistant paint.

    For nice looking of the hood, the outer aluminum waving sheets are coated and filmed. They are produced by our unique waving sheet former at our workshop and then transported to the mill site and mounted onto the panels on-site.

    The tender side lift doors, drive side slide doors and the hinged swing doors are constructed of surface coated aluminum sheets and electrophoresis aluminum profiles and characterized by good-looking, flexibility, convenience and safety. As these doors are tenon-structured, no any welding marks, rivets and bolts can be seen from the appearance.

    Window glass composed of double layers of toughened glasses and a vacuum intermediate.

    Lighting system consisting of high temperature resistant and explosion proofed 240V metal halogenated lamps.

    Sprinkler system inside hood, roll maintenance device and door, hot air blow boxes at the end sides of hood are all necessary parts for achieving the multiple functions of hood.

As a professional manufacturer of paper coater in China, Zheng Da Qing Ke Hi-tech Machinery Co., Ltd can provide a large selection of paper machines, environment protection equipment, and turn key projects for clients all over the world, including pulp machine, closed hood and ventilation system, air supply system, Yankee hood, etc. Our products have been well received by customers from Thailand, Indonesia, Vietnam, Japan, Australia, Russia, Azerbaijan, Egypt, Turkey, France, Germany, the United States, Brazil, and so on. Moreover, OEM service is also available. If you need paper coating machine, please don't hesitate to contact us.

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Release Liner Paper Machinenull@null.com (blog)http://www.zdqk.net/blog/post/Release-Liner-Paper-Machine.htmlThu, 09 Aug 2012 23:55:02 +0800http://www.zdqk.net/blog/post/Release-Liner-Paper-Machine.html Description of Release Liner Paper Machine:

Fourdrinier with Yankee Cylinder

3.6m wire, 3.25m trim width

180 tons/day; 50-200 g/sq/m.

One-sided, smooth coated base papers for Release Liner, Inkjet Paper, Facestock

440 m/min speed

Right hand drive, 50 Hz electrical frequency

Complete from stock prep to pope reel

Many spares, auxilliaries, all manuals, etc

Many upgrades, in very good condition!

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Pulp Machine Servicesnull@null.com (blog)http://www.zdqk.net/blog/post/Pulp-Machine-Services.htmlThu, 09 Aug 2012 23:51:21 +0800http://www.zdqk.net/blog/post/Pulp-Machine-Services.html Zheng Da Qing Ke Hi-tech Machinery Co., Ltd expertise covers all aspects of each transaction from sourcing pulp and paper mill equipment specifically suited to our customers' requirements, to facilitating the purchasing, packing and shipping overseas, installation, start-up and operational support. We are able to rebuild used equipment and provide guarantees on the rebuild. We also coordinate and facilitate project planning and engineering. Understanding client needs, in-depth knowledge of paper machines and related components, combined with the highest standards of integrity, multi-lingual ability (we have english, spain, portugal, russian, and other language speakers on board), professionalism and cultural sensitivity assure Zheng Da Qing Ke Hi-tech Machinery Co., Ltd's clients of overall project success. Our company is currently working with several Pulp & Paper companies to sell their idled paper machines as well as complete pulp and paper mills from various locations in China, USA, UK and Europe.

Through the development of a network of strong affiliates, sub-contractors, and strategic partnerships, Zheng Da Qing Ke Hi-tech Machinery Co., Ltd is able to offer our clients a diverse range of specialized services. This allows us and our clients the flexibility to take on projects that can be structured and executed in a manner that is most convenient for our clients. Whether it's professional dismantling, rebuilding your newly acquired used paper machines, using our services to sell your used paper machines, or looking into our export shipping services, we have the experience and drive to be the best in our industry.
Professional Dismantling

Through our highly professional and experienced affiliates, Zheng Da Qing Ke Hi-tech Machinery Co., Ltd can arrange to have any type of industrial, pulp & paper equipment dismantled and packed for export shipping in the most efficient and cost effective manner. All the work is conducted by licensed contractors and in full compliance with Federal, State and County laws & codes, as well as the millsite rules & regulations. Our affiliates specialize in the dismantling, export packing and relocation of pulp machinery and paper equipment as well as process systems. In addition, if required, they can also re-install the equipment at your millsite, and provide structural erection, process piping, instrument controls, start up and commissioning of entire plants.
Export Shipping

Over the past ten years, Zheng Da Qing Ke Hi-tech Machinery Co., Ltd has built strong relationships with ocean shipping companies, freight and customs brokers, and other logistics providers. We are in a position to offer you complete logistics services including provision of export containers, loading the containers at the millsite, trucking and delivery to the terminal, handling and shipping of large break bulk pieces, detailed surveyor's reports, door to door marine/transportation, insurance coverage, interim storage at terminal facilities, and delivery to ultimate millsite. Our providers will prepare the appropriate packing lists, container load plans, Bills of Lading, and all other export documentation and formalities. This adds considerable value for clients who purchase a used paper machine, pulp machine or other equipment through Zheng Da Qing Ke Hi-tech Machinery Co., Ltd, Inc, as our providers are hands-on shipping professionals who personally stay on the project from start to finish with daily supervision resulting in minimum worry for our clients.
Selling your Idled Pulp & Paper Equipment

Through trial and error and many years of combined experience, our team has discovered the quickest, most cost efficient ways to market and sell idled pulp and paper equipment. We have an established client base that is world-wide, and with whom we are constantly in touch, as we monitor their equipment needs, we are constantly seeking and sourcing idled equipment and matching our clients' needs with what is available for sale.

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Pulp Machine and Drying Systemnull@null.com (blog)http://www.zdqk.net/blog/post/Pulp-Machine-Drying-System.htmlThu, 09 Aug 2012 23:37:15 +0800http://www.zdqk.net/blog/post/Pulp-Machine-Drying-System.html Pulp Machine and Drying System
We supply pulp machine turn-key project service

The whole system includes:

Double wire hot air dryer pulp machine;

on line cutting, baling line;

Steam condensate system;

Pulp flow and purify system;

Vacuum System;

Broken paper processing system;

Convey control system;

DCS and QCS paper machine control system;

The project consultation, design, management, installation and  debugging one package service.

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PULPING PROCESSnull@null.com (blog)http://www.zdqk.net/blog/post/PULPING-PROCESS.htmlTue, 31 Jul 2012 00:30:26 +0800http://www.zdqk.net/blog/post/PULPING-PROCESS.html he first step in papermaking is the production of pulp, and wood is by far the most widely used raw material. Wood, however, differs from northern to southern climates, necessitating different processes for making satisfactory pulp. There are many types of pulping processes, but the paper industry primarily focuses on mechanical and chemical.

Mechanical pulping produces groundwood pulp. Cleaned and peeled logs are ground against a revolving grindstone, or wood chips are passed between two steel discs or a refiner until they are reduced to fiber. Groundwood pulp is economical since all the wood is used. It does, however, contain impurities, which can cause discoloration and weakening of the paper. Its main uses are for newsprint, and as part of the pulp in magazine papers where it contributes bulk, opacity and compressibility.

Chemical pulping removes most of the impurities such as lignin, resins, gums and other undesirable components of the wood so that the pulp is mainly cellulose fiber. Papers made from this pulp are much more permanent than groundwood paper. Cooking wood chips with chemicals in batch or continuous digesters does chemical pulping. There are two main types of chemical wood pulp: sulfite and sulfate. Sulfite pulp is made by cooking chips of coniferous woods like pruce, pine and hemlock in a liquor made from lime and sulfurous acid. Sulfate pulp, also known as kraft , is produced by cooking broadleaf or coniferous woods with caustic soda and sodium sulfide. Since sulfate pulp uses a wider variety of woods and produces a strong paper, it is used more widely than sulfite pulp.

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Papermaking FIBERnull@null.com (blog)http://www.zdqk.net/blog/post/FIBER.htmlTue, 31 Jul 2012 00:26:08 +0800http://www.zdqk.net/blog/post/FIBER.html There are several options for fibers used in paper production. Most paper in China is made using wood fiber derived from trees, but there are many more options that are coming available every day. Fiber is important to the paper making process since it is the fibers of the sheet that determine the style and form of the paper. Below are some raw materials that can yield good papermaking fiber:

Softwood: Softwood is the wood industry's term for wood from conifers, trees with needles such as pine, spruce, cedar and fir. Softwoods lack water transport vessels and contain only fibers and transverse ray cells. In softwoods, fibers transport water and are longer. The long fibers make paper from only softwoods strong and rough. Softwoods make up the bulk of wood used by humans and can be found in construction and furniture.


Hardwood: Hardwood is the wood industry's term for wood from leafy angiosperms. These are primarily deciduous trees such as oak, maple and cherry. Hardwoods are found from the sub-tropics up through the temperate forests of North China and Europe. While hardwoods generally are harder than softwoods, what separates hardwoods is the presence of vessels that transport water. The fibers in hardwood are shorter. Paper made from only hardwood is flexible and smooth, making it better for writing and printing. Hardwoods are often used in tools and in flooring because of their strength.

See how logs are turned into wood products:

Eucalyptus: Eucalyptus is a hardwood tree native to Australia and has many of the same uses as hardwood trees found in other regions. There are over 600 species, but the most popular species are E. kamaldulensis and E. golbulus. Eucalyptus is being promoted as an alternative to traditional trees for several reasons. It is fast-growing, making it more renewable and suitable for short term uses; it is tolerant of poor climate conditions and non-fertile soil, which means trees can continue growing even during 2-3 month floods; and it is resistant to many arboreal diseases and not normally eaten by animals, making it easy to manage. Because of these advantages, Eucalyptus may play an increasing role in the wood industry in the coming years.


Cotton: Cotton paper, also known as cotton rag or ragged paper, is made from 100% cotton fibers. Cotton paper is superior in both strength and durability to wood pulp-based paper, which may contain high concentrations of acids. Cotton fiber paper is known to last several hundred years without fading, discoloring, or deteriorating, so it is often used for important documents such as archival copies of a dissertation or thesis. As a rule of thumb, for each percentage point of cotton fiber, a user may expect one year of deterioration resistance against handling to which paper may be subjected. (reference - Southwest Paper Co). Because of the durability cotton gives paper, legal document paper typically contains 25% cotton.

Recycled Paper: In China, more than 50% of used paper products are recycled. Recycling significantly reduces wood pulp and energy usage, saving up to 50% of wood and electricity of the traditional pulping process. Recycling paper also reduces landfill usage. It is estimated that for every metric ton of paper recycled, 3 cubic meters of landfill are eliminated. When recycled, paper products are broken down into fibers, separated from inks and other contaminants, then washed before being remade into paper. Different grades and types of paper have different recycling requirements. For more information, please see the recycling process and paper recycling guidelines pages.

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PAPER: OVERVIEWnull@null.com (blog)http://www.zdqk.net/blog/post/PAPER-OVERVIEW.htmlTue, 31 Jul 2012 00:23:41 +0800http://www.zdqk.net/blog/post/PAPER-OVERVIEW.html Paper was first created and used over three thousand years ago. The development of rapid paper production of during the Middle Ages caused significant cultural changes across the world. It allowed for the quick and economical distribution of thoughts and ideas through books, newspapers, pamphlets and even letters. Today, global demand for paper is rising, making paper more prevalent and important now than ever before.

There are few materials with the versatility of paper. While most noticeably used in writing and printing, paper is also found in packaging, construction and a variety of other mediums. Paper is produced by pressing and drying fibers into thin and flexible sheets. These fibers are normally cellulose based and derived from wood, grasses or even rags.

Logging provides much of the raw material for paper production, but modern advances in recycling, agriculture and forestry have made sourcing the materials for paper production sustainable. In addition, new technological developments in bleaching and manufacturing have made the actual production of paper more environmentally friendly.

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Single SIde PE Coating Machinenull@null.com (blog)http://www.zdqk.net/blog/post/PE-Coating-Machine.htmlTue, 31 Jul 2012 00:19:13 +0800http://www.zdqk.net/blog/post/PE-Coating-Machine.html one-side complex film Laminating per time

Brief Introduce:
This series of products are made by compounding fluid paper,plastic film,woven cloth or aluminum foil into double layer,three layer, three layer or multi-layer new materials,which are used for packaging products of cement, chemicals, forage, food, medicine, adhesive tape cloth,plastic coating paper cups and fast food boxes,etc.
The equipment abroad applies to film: the base materials of mold release paper, cup paper, bowl paper, melon seeds bag paper, non-woven cloth, gauze, aluminum foil. THe finished film has these characters such as fastness, fine effect, equal thickness and fine sealed capability and etc. Standards of various kinds are up to the international standars.

Main Technical Data:
The Specs....:............800mm, 1100mm, 1300mm, 1500mm, 1600mm, 1700mm, 1800mm, 2200mm
Working width: Max. 700mm, 1000mm, 1150mm, 1350mm, 1500mm, 1550mm, 1700mm, 2000mm
Using colophony : LDPE, PP, EVA, BOPP, BOPET, BOPA, CPP, CPE, PE
Quantity of extrusion: 160--260 kg/hour
Thickness of coating: 0.01mm----0.05mm
Uniformity of thickness: < + - 5%
Production of speed: Max. 100m/minute
Application range: Paper-plastic complex, Plastic-plastic complex, Aluminum-plastic complex, Paper-aluminumplastic complex, Alf-adhesive series.
Producing Methods: Single coating film complex, Three-level(sandwich) complex, Multi-level complex(with seven-level complex at one time)

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Paper Coatingnull@null.com (blog)http://www.zdqk.net/blog/post/paper-coating.htmlTue, 31 Jul 2012 00:06:09 +0800http://www.zdqk.net/blog/post/paper-coating.html Paper coating is about printability or formation of specific surface layers for the intended use of the paper or paper-board. The various combinations of paper coating and printing technologies set highly specific requirements to the properties of the coated paper, requiring precisely formulated and applied coating chemicals. Nopco is a major supplier of lubricants and anti-dusting agents. We also offer a broad range of organic paper coating additives. These include wax-dispersions for increased hydrophobicity, insolubilizers to improve tolerance to moisture at printing, defoamers to avoid formation of craters from air-bubbles and thereby improve surface smoothness, biocides/preservation agents to prevent microbiological decay of coating components and microbial related problems at the coating application, as well as silicones for silicone coated papers.

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