Drum disc thickener for pulp and paper industry used for thickening wood pulp cotton pulp and rice straw pulp
The ZNW rotary screen disc thickener is used for the dewatering and concentration of low-concentration pulp in the pulp and paper industry. It is not only suitable for the dehydration and concentration of wood pulp, cotton pulp, and rice straw pulp, but also for filtering and concentrating other types of fiber suspensions in the non-paper industry. Compared with other existing pulp thickening equipment, it has the advantages of simple structure, convenient installation and maintenance, high production capacity, and wide adaptability of pulp types. It is widely used in the pulp and paper
Classification:
Product Description
浆 种 Pulp species |
化学木浆 Chemical wood pulp |
棉浆Cotton pulp |
稻麦草浆 Rice and wheat straw |
进浆浓度% inlet slurry concentration |
0.5-l |
0.5-1 |
0.5-1 |
出浆浓度% Outlet slurry concentration |
4—6 |
4-6 |
4-6 |
生产能力t/d (风干浆) Capacity T/D (dried pulp) |
3-3.5 |
2-2.5 |
1—1.5 |
Model |
ZNW5 |
ZNW10 |
ZNW15 |
ZNW20 |
ZNW25 |
ZNW30 |
ZNW35 |
||
Rotating drum filter area m2 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
||
Drum diameter mm |
Φ1500 |
Φ1500 |
Φ1500 |
Φ2000 |
Φ2000 |
Φ2500 |
Φ2500 |
||
Drum width mm |
1065 |
2025 |
3330 |
3310 |
4050 |
3995 |
4650 |
||
Drum speed r/min |
1.5-15 |
1.5-15 |
1.5-15 |
1.2-12 |
1.1-11 |
0.6-8.2 |
0.6-8.2 |
||
Drum line speed m/min |
7.1-71 |
7.1-71 |
7.1-71 |
6.9-69 |
6.9-69 |
4.7-64 |
4.7-64 |
||
Roller diameter mm |
Φ460 |
Φ460 |
Φ460 |
Φ500 |
Φ500 |
Φ500 |
Φ500 |
||
Roller surface width mm |
1129 |
2141 |
3400 |
3400 |
4055 |
4005 |
4660 |
||
Line pressure of roller N/m |
10 |
1.5-15 |
|||||||
Water pressure of spray pipe Mpa |
0.4 |
||||||||
Number of spray pipe swings 1/min |
25 |
||||||||
Spray pipe swing mm |
80 |
||||||||
stock inlet mm |
Dg250 |
Dg300 |
Dg250*2 |
Dg300*2 |
Dg300*2 |
||||
Stock outlet mm |
Dg200 |
Dg250 |
Dg250 |
Dg300 |
Dg200*2 |
Dg300 |
Dg300 |
||
Whitewater export mm |
Dg200 |
Dg250 |
Dg250 |
Dg350 |
Dg400 |
Dg400 |
Dg400 |
||
Drain outlet mm |
D9150 |
||||||||
Drum motor |
Model |
YCTG180-4A |
YCTG180-4B |
YCT200-4B |
YCT225-4A |
YCT225-4A |
YCTD180-4B |
YCTD180-4B |
|
KW |
4 |
5.5 |
7.5 |
11 |
11 |
15 |
15 |
||
Spray pipe model |
BYW12-59-0.75 |
||||||||
Power KW |
0.75 |
||||||||
Size mm |
2925×2780 ×2400 |
4195×2930 ×2400 |
5505×2850 ×2400 |
5350×3570×2820 |
6210×3570 ×2820 |
3735×4550 ×3500 |
3730×4550 ×3500 |
||
Weight Kg |
4790 |
6550 |
8850 |
9620 |
10860 |
18300 |
19600 |
Structure
This machine is mainly composed of tank, rotating drum, pressing roller, pressing frame, scraper device, swinging water spray pipe sealing device, transmission parts, etc.
1. Tank: The tank supports all parts except the transmission part, and is welded by steel plate and section steel. The cylindrical mesh trough is basically counter-current, and the center of the trough and the drum are offset by 15m2 and 80mm. More than 20m2 is 100mm. The slurry enters the tank body through the slurry inlet located at the bottom of the mesh trough, and a part of the slurry reaches the bottom of the mesh trough, which can dilute the thick slurry at the bottom, which is beneficial to eliminate the slurry accumulation and the slurry dehydration to go online. There is a pulp outlet and white water outlet. The discharge level of the white water can be adjusted with a gate to control the difference in level between the inside and outside of the trough.
2. Drum part: The drum adopts the structure of the spoke type and the polypropylene injection molding filter plate. The filter plate structure adopts the new technology that has been effective at home and abroad in recent years. It is lighter in weight and durable than the previously used wire-wound cage. Corrosion, long life, easy maintenance and other advantages, the surface of the drum surface net, the material and specifications of the drum surface net are selected and prepared by the user according to the pulp type and process conditions. As the pulp and paper industry to filter concentrated pulp, generally 40 mesh/inch nylon mesh can be used. The drum spokes are fixed on the hollow shaft, and both ends are supported on standard bearing seats fixed on the tank. The drum is driven by the electromagnetic speed-regulating asynchronous motor after passing the triangle belt and the reducer: the user can choose the best drum speed according to the production needs.
3. In the pressure roller part, a pressure roller is installed above the drum to forcefully dehydrate the slurry on the Internet, and then the dewatered and concentrated slurry is adsorbed on the rubber surface of the pressure roller, scraped by a scraper, and dropped in and out. The material trough is discharged through the slurry outlet. The pressure of the pressure roller to the drum is generally controlled at about 40N/cm, and the appropriate pressure roller line pressure can be selected by adjusting the length of the support spring according to the slurry type and thickness of the slurry layer. The slurry board on the tank body can lead the slurry out of the slurry tank.
4. The mesh washing device, the mesh washing device adopts a swinging net washing spray pipe, which is driven separately by a small geared motor, which can improve the cleaning effect of the mesh surface of the thickener, thereby improving the concentration efficiency.
Service
Pre-Sales Service
1. Proposing the most suitable scheme and equipment for our clients.
2. Designing and fabricating targeted products according to the special requirements of clients.
3. Training periodically high qualified service technician.
After-Sales Service
1.Field installation, commissioning and training
2.Video technical support
3.Field maintenance and repair service
4.Online support
Packaging & Delivery
Company Introduction
NH Paper Machinery Industrial Group is a leading professional paper machine manufacturer in China, which specializes in making machine, paper making machine and all kinds of paper machine components manufacturing. Based on the development of local market. We are growing to professional paper mill solution provider. NH Paper Machinery Industrial Group fully implement the guideline in business-"survival depends on quality and service market rely on price and brand."
Our main products are a full set of new and second-hand paper making equipment with a maximum net with of 6000mm and a working speed of 700m/min. It mainly includes a packaging paper production line with an annual output of 200,000-200,000 tons, a cultural paper production line with an annual output of 1-10 million tons, a tissue paper production line with an annual output of 20,000 tons and various special paper production lines.
Look forward to hearing from you sooner and establishing a long friendly business relationship with you. We promise we will do our best to help you. Besides, welcome you to visit our factory at any time.
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Qinyang NH Paper Machinery Industrial Group Co., Ltd.
WhatsApp/WeChat:Cathy Wang 0086-15721522521
WhatsApp/WeChat:Ailsa Zhao 0086-18300605679
ADD: Jianshe Road(South),Qinyang City Henan Province,China
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