Drum Boiler for Paper Making / Pulp Machine

• Customization: Available
• Warranty: 1 Year
• Product Type: Double Disc Paper Pulp
• Model NO.: Drum Boiler
• Usage: Household Paper Machine
• Nominal Volume(m³): 1
• Impeller Diameter (mm): 600
• Rotating Speed of Impeller (r /min): Other
• Certification: CE, ISO, SGS
• Condition: New
• After-sales Service: Lifetime After-Sales Service
• Machine Type: High Consistency
• Optional Voltage: 380V/400V/415V
• Capacity: 15-25t/H
• Motor: 160kw
• Main Material: Ht200
• Disc Material: Alloy Material
• Transport Package: Wooden Case
• Specification: 2600x1300x2300
• Trademark: VANGTON
• Origin: China
• HS Code: 8439100000
• Production Capacity: 1000 Set/Year

Product Description

    High dynamic productivity; compared with a ball of the same volume, it occupies a small area and uses excess steam for energy saving.

    The main circulation static continuous cooking is the main equipment for continuous cooking. Its main advantages are: the volume of the equipment is large, the output of slurry is large; the labor includes the main body, the liquid medicine heating circulation system, the inner cover, and the support. Among them, the liquid medicine heating circulation system adopts the middle pumping circulation system, the inner cover adopts a self-tightening cylinder inner cover, and the support is an ear support.

    The pulping and cooking cycle cycle is relatively short, generally 2-4h, and can also be set according to your own process needs. With automatic inner cover, full pressure spraying and automatic control of the cooking process, the cycle cycle can be shortened.
 

Item	Old bamboo	Young bamboo	Old bamboo mixed with bamboo	Straw
Amount of alkali used(Na2O)/%	12-16	8-12	12-16	4-12
Liquid ratio	1:2.8-3.0	1:3.5-3.7	1:2.6-2.8	1;2.4
Maximum temperature \ºC	180±2	180±2	180±2	160
Cooking time \min	150	120	130	120

Device Description

    The equipment is divided into upper, middle and lower parts: the upper part is composed of a hemispherical head, the middle part is cylindrical; the lower part is a combination of inner cone and outer ball. The height and diameter of the equipment and the size of the upper and lower cone angles are important indicators of the external dimensions of the continuous cooking cycle.

    In order to extract the cooking liquid from the body for cyclic heating, there is a liquid withdrawal pipe at the transition part between the cylinder or the cylinder and the lower inner cone of the equipment, and a ring-shaped filter screen is installed on the corresponding inner wall for Prevent the material or slurry from being drawn out when pumping.

    Liquid medicine circulation and heating system. According to different heating methods, the equipment can be divided into direct heating forced circulation and indirect heating forced circulation. Indirect heating can ensure a stable liquid ratio, increase the concentration of the chemical solution, shorten the cooking time, and make the quality of the obtained slurry uniform. At the same time, the concentration at night after cooking is higher. There is an indirect heating circulation system:

    The circulation mode of the lower liquid pumping circulation system makes the circulation direction of the liquid medicine in the equipment opposite to the natural convection direction, the mixing of the liquid medicine is perfect, and the upper temperature of the cooking equipment is high, and the pressure at the lower part is higher, so it can be used with each other to cook evenly.

    The circulating pump runs at full load during the whole cooking and heating period; because the colleague sends a large amount of liquid medicine back to the interior, the lower slurry is always kept in a loose state, so that the temperature of each part of the material is uniform and easy to discharge. So this design adopts this circulation system.


    The inner cover starts frequently, so the cover is hoisted on the cantilever cylinder supported on the side of the equipment neck to lift the cover. Under the premise of ensuring safe operation, the automatic inner cover is easy to operate even if the opening and closing time is greatly shortened, and it is convenient to realize the control of the opening and closing of the inner cover.

    Support. The equipment is completely supported on the pillar by ear supports. According to the different equipment volume, the number of supports can be divided into four. Due to the frequent rise and fall of equipment temperature, in order to adapt to changes in thermal expansion and contraction without generating large local stress, the ear-type support is not completely fixed on the pillar, but allows the support and the pillar to have relative displacement. One of the ear supports is fixed on the pillar, and the other three ear supports are placed on the pillar. The bolts do not need to be tightened. When the equipment expands and contracts with heat, the equipment can move slightly on the pillar.
 
    In the pulping process, the raw materials are first prepared (peeled, impurity removed and cut into pieces), and then cooked with cooking liquor to become coarse pulp. The cooking temperature of wood raw materials is about 160-180ºC, and the time is about 2 to 4 hours. After delignification, the material is dispersed into a fiber state. The lye can accelerate the delignification effect and alleviate the damage effect of strong alkali on cellulose.

    Bamboo pulping is most suitable for alkali method. Most bamboo pulp production uses tender bamboo, and a small part uses old bamboo. Young bamboo has low lignin content and high cellulose content, and is easy to cook, but because of its high water content, it is easy to rot by insects. In addition, it varies in storage and has a short cutting period. Generally, the lignin content of bamboos less than five years old has little change. Although the growth time increases, the lignin content of old bamboos increases and the fiber content decreases slightly, but old bamboos can be cut at any time and are easier to store.

    The fiber shape and chemical composition of bamboo are between wood raw materials and grasses; its relative density is greater than wood, generally 0.6-0.8, and individual old bamboos are above 0.9. The key to bamboo cooking is the soaking of the liquid medicine, and the holding time should not be too long.


OUR SERVICE

Pre-sale service
1. Our professional and experienced engineer team helps every client to find his most suitable equipment or chose of plant. 
2. Any kind of legal logo printing or design are available. 
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you. 

After you choose: 
1. We will make drawing and show you how the pant looks. 
2. Every equipment will be checked carefully before packing. Video on machine testing is available. 
3. Email you the tracking no., and help to chase the container until it arrives you. 

After-sale service
1. We are very glad that customers give us some suggestion for price and products. 
2. If you have any question, please contact us freely by E-mail or Telephone. 


FAQ

Q. What is your payment term? 
A: T/T 30% down payment, balance to be paid before shipment. 
Q: What is your main market? 
A: South America, Eastern Europe, Southeast Asia, Africa, Oceania, Eastern Asia
Q: What is your producing time? 
A: Producing time depends on that machines you ordered. Usually takes 45 days. 
Q: What documents you can offer? 
A: We can offer invoice, packing list, contract, instructions, customs declaration, certificate of origin, CE. If client need other documents, specifications, please confirm with service staff. 
Q: If equipments have some quality problem, how would you deal with? 
A: We will responsible for all the quality problems. We will check the machine to get the problem. If need parts, will send them to you. 
Q: How to install the equipments? 
A: We send 1-2 engineer (100USD/person/day) to the local plant for helping install and commissioning equipments. To save time, our service stuff will tell you what to prepare in advance. We can also teach the workers to how to use the machines and how to make the products better.