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     Doyen (China) Machinery Co.,LTD 

     About this company : is a Chinese company that designs and manufactures the most cost effective wastewater treatment system & equipment for over 10 years. Both in China and overseas, can provide its customers economical solutions based on combined experience and innovative engineering design with proven application expertise. Since 1998, we have won a good reputation among our customers. We specialize in the manufacture and export of water and waste water machinery&equipments. Our products are mainly exported to Western Europe, the United States and Asia. Our 10-year-experienced R&D engineers are developing functional products. Our main products include sludge dewatering equipment like belt press, plate and frame filter press, chamber filter press; water treatment systems like RO(Reverse Osmosis) system, UF(Ultra filtration) system, MF(Micro filtration) system, water vending machine and all kinds of water tanks. In addition to our ready models, we also welcome OEM/ODM orders. Adhering to our company principle of "Creating value for you", we are consistently working toward more benefits for our customers. Please contact us now to learn more. Thanks for visiting us!

     Contact : john huang, manager 
     Headquarters : No. 2 1st Meihaocun, No.97 Nanhai R, Foshan, GUANGDONG, 528200, China
     Phone : 86-757-86330278, Fax : 86-757-86287390 
     Website : Log on to trade instantly , Email : Log on to trade instantly

     ---- Branch 1 ---
     Contact : john
     Address : No. 2 1st Meihaocun, No.97 Nanhai R, Foshan, GUANGDONG, 528200, China
     Phone : 86-757-86330278, Fax : 86-757-86287390

     Vertical type belt press  Vertical type belt press DY-QN2000L

Vertical type belt press
 
Features:

1. Using the latest advanced technology, add one more independent concentrated device based on normal type belt press, significantly increased the ability of water removal  8 to 15% lower flocculation consumption with combination of dynamic and static flocculation reactor.

2. High working capacity (150% of normal type)
3. Low moisture content of filter cake (10% less than normal type)
4. Low working cost (30% lower than normal type)
5. Frame made of high-quality mild square steel pipe (10 to 12#) with sandblast and high strength fluorine-carbon finish, makes anti-corrosive ability keep more than 8 years
6. Main body are made of stainless steel (304), including main and assistant rollers, fender, flume, waterproof cover, muzzle and sheets
7.High-quality bearing with full airproof bearing seat, available to run more than 3 years
8.Extrusion and transmission rollers are made of seamless steel pipe with anti-wearing rubber outside, variable to work more than 5 years

 
Vertical type belt press

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     Belt filter press for chemical industry Belt filter press for chemical industry DY-QN2000S

Belt filter press for chemical industry
 
Technique parameter: 

1. Main machine power: 7.5kW

2. Concentrated machine power: 2.2kW

3. Total installed power: 19kW

4. Dimension: 5,300 x 2,900 x 1,636mm

5. Belt size: 2,000mm

6. Belt speed: 2 to 7m/min

7. Belt tension pressure: 0.25Mpa

8. Best wash hydraulic pressure: 0.4 to 0.5mpa

9. Capacity: 18 to 25m3/h (inlet sludge); 7 to 8 tons/hour (outlet cake)

10. This machine is specially designed to compress the chemical sludge in order to ensure maximum dewatering, high grade of solids and less moisture.

Belt filter press for chemical industry

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     Belt press for municipal sludge treatment Belt press for municipal sludge treatment DY-QN2000W

Belt press for municipal sludge treatment
 

Manufacturing features:

1. High quality mild square steel pipe(10#-12#) with sandblast and high strengh fluorin-carbon finish,or completely stainless steel frame, makes anticorrosive ability keep more than 8 years.

2. Large diameter stainless steel perforated drums for efficient dewatering and pressure boosting.  

3. High quality filter belt for high cake dryness. Polyester belts provide long life.

4. Precise belt tracking and tensioning systems for belt safety and clean, reliable operation.

5. High quality bearing with full airproof bearing seat, available to run more than 3 years.

6. Extrusion and transmission rollers are made of seamless steel pipe with anti-wearing rubber outside, vailable to work more than 5 years.

Belt press for municipal sludge treatment

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     Belt press for municipal sludge treatment Belt press for municipal sludge treatment DY-QN2000W

Belt press for municipal sludge treatment
 

Manufacturing features:

1. High quality mild square steel pipe(10#-12#) with sandblast and high strengh fluorin-carbon finish,or completely stainless steel frame, makes anticorrosive ability keep more than 8 years.

2. Large diameter stainless steel perforated drums for efficient dewatering and pressure boosting.  

3. High quality filter belt for high cake dryness. Polyester belts provide long life.

4. Precise belt tracking and tensioning systems for belt safety and clean, reliable operation.

5. High quality bearing with full airproof bearing seat, available to run more than 3 years.

6. Extrusion and transmission rollers are made of seamless steel pipe with anti-wearing rubber outside, vailable to work more than 5 years.

Belt press for municipal sludge treatment

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     Belt press for small capacity application Belt press for small capacity application DY-QN1000P1

Belt press for small capacity application
 
     This Mini belt press is specially designed and developed in light of those application with small working capacity request or small location available to install the dewatering system.

     This equipment has the characteristics as continuous working, good dewatering effects, lower power consumption, lower noisy, easy for operation and maintenance, small space needs and easy for transportation. 

Main advantages:

1. Presscake with the lowest moisture content

2. Construction with a special Nip-Squeezing roller, available to press original slurry to be minimum moisture content.

3. Reliable and stable in operation

4. Reinforce structure design

5. Longer lifetime, low maintenance cost

6. Low power consumption

Belt press for small capacity application

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      China filter press  China filter press 500, 1000,1500,2000,3000

China filter press
 
Compared with vacuum filter, gravity centrifugal mud/water separating and condensing system, HX2000 uses less energy, occupies less room, and has more capacity and flexibility It is easy to operate and maintain

Stable operation: by adopting cycloidal wheel motor, frequency converter, automatic deflection correct system, lension adjusting fur bag, it can automatically stop in cases of air breakdown, insufficient pressure, keeping working stable with sensitive correction to deflection, liable tension and stable pressure High-resistance to corrosion, parts and nuts that contact water are made of stainless steel Advanced technology in dehydration, it is capable to separate water from different sludge by using different model of machine, different size of screen and different kinds of polymer agent

The particular gravity filtering area is able to improve filtering efficiency The frame is made of the square steel, making the machine to have the high-strength and stability It also has strong resistance to chemical corrosion It is easy to correct the cloth movement deflection and has long durableAvailable in customers designs according to different needs and natures of different industries like ceramic, metallurgy, coal mining, construction, paper making, food, textile, pharmacy, printing and dyeing, petroleum and chemistry

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     Engraving machine Engraving machine Φ230 x 720, 460 x 720 and 460 x 820mm

Engraving machine
 
Resolving: 60 line per hour (0.42mm), 130 lines per hour (0.2mm)
Available roller size: Φ230 x 720, 460 x 720 and 460 x 820mm
Process speed: 1.5 hours (diameter Φ230), 3.0 hours (diameter Φ460)
The system with high reliability
The machining system of engraving machine is controlled by figure processor
In order to avoid paralysis of the system due to the computer fall down or the virus
To cancel the normal computer as it works not stably

The finished machining documents is made by normal computer, itís absolutely separate between the computer and the system of the machining, the machining document is made by computer will be connect with the system through the move disk In order to meet all kind of demands, the finished machining documents can set up resolving, contrast, process speed According to the demand domestic for the ceramic enterprises The design can arrange as clearly as for the dark gray There is no any special requirement for operator who can easy to operated the machining system with friendly screen
Engraving machine

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     Feeding system, ceramic machine Feeding system, ceramic machine Dimension:5*2.6*3 Weight:3ton

Feeding system, ceramic machine
 
features
1. It is a new-style stone-imitated material distribution system newly developed by us recently.
2. Max. pressing force: from 2100 T to 7800 T.
3. Air consumption: 0.08cbm/h
4. It can produce diversified micro-powder lines according to the needs of customers.
5. The line thickness and shade enjoy random, natural and elegant change, forming ingenuous hierarchy.
6. The crack effect of natural stone, as well as abundant colors and soft patterns can be easily created.
7. Well known by its high stability and reliability
8. It has been widely applied by a great number of ceramic manufacturers for the mass production of ceramic products
 
Feeding system, ceramic machine

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     Horizontal belt filter press Horizontal belt filter press DY-QN2000S8

Horizontal belt filter press
 
 
The belt filter press is a continuous-feed dewatering device that applies chemical conditioning, gravity draining, and mechanical pressure to dewater sludge. The sludge/slurry is sandwiched between tensioned belts and rolls, by passing those belts through a serpentine of decreasing diameter rolls to remove the moistures and then dispose of the sludge cake.

The belt filter press can be used in the following industrial sectors:

1. municipal plants

2. pulp and paper industry

3. leather industry

4. textile processing

5. fruit and vegetable processing Kirchen/Germany.

6. steel works and roller mills

7. sugar industry

8. bio-water processing

9. Ceramic industry

10. Mining industry

 
Horizontal belt filter press

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     Plate and Frame Filter Press Plate and Frame Filter Press DY-HXBK02

Plate and Frame Filter Press
 
 
Features:
1. Stationary plates and movable plates are made of durable steel unity Polypropylene plates which has advantages of high resistance to chemical corrosion, acid and alkali;
 
2. Without any pollution, easy to handle The pull rods at both sides with fixed end by screw are constructed of medium carbon round bar steel, which can adjust the clearance by itself according to the pressure
 
3. Without the worries of stress concentration and cracks of welding poing The main frame is constructed of carbon steel and all structural steel is sand blasted, primed and painted with corrosion resistant epoxy coating Oil hydraclic system is equipped with check valve, oil system magnetic valve control, oil pressure control switch and recycle-oil device Mobile and integrated modular design No chemical additives/polymer needed
 
4. The pressed sludge cake is collected by conveyors and transported to the expected location/storage Available size of plate: 500, 600 and 800mm Optional quantity of plates: 60, 80 and 95 It is widely used in food and drug, chemical industry, metallurgy, environmental protection, and many other fields.
 
Plate and Frame Filter Press

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     Vertical type belt press  Vertical type belt press DY-QN2000L

Vertical type belt press
 
1. Using the latest advanced technology, add one more independent concentrated device based on normal type belt press, significantly increased the ability of water removal 8 to 15% lower flocculation consumption with combination of dynamic and static flocculation reactor
 
2. High working capacity (150% of normal type)
 
3. Low moisture content of filter cake (10% less than normal type)
 
4. Low working cost (30% lower than normal type)
 
5. Frame made of high-quality seamless square steel pipe (10 to 12#) with sandblast and high strength fluorine-carbon finish, makes anti-corrosive ability keep more than 8 years.
 
6. Main body are made of stainless steel (304), including main and assistant rollers, fender, flume, waterproof cover, muzzle and sheets High-quality bearing with full airproof bearing seat, available to run more than 3 years
 
7. Extrusion and transmission rollers are made of seamless steel pipe with anti-wearing rubber outside, variable to work more than 5 years.
 
Vertical type belt press

  > Add to cart


     YB Series sludge piston pump YB Series sludge piston pump YB Series slip pumps with ceramic piston

YB Series sludge piston pump
Its main features

1. hydrolic moved,double cavity working,;arge flow volume.
2. High working stability, and reliability, long time working.
3. Low working noise, large scope of working pressure.
4. Useful in transporting high wearing and acid erosion slipe.

The series of YB hydrolic pumps with ceramic pistons are mainly composed of oil hydrolic system, the cast cavity, oil jars and alumina ceramic pistons which are high wear-resistant. The cavity can be made of cast iron or stainless materials according to the different conditions in which the pumps are used. YB hydrolic pumps are divided into three types. They are high pressure pumps, low pressure and large flow volume pumps and flow-variable pumps .The high pressure pumps are suitable for pumping slip to a long distance or a high place(It can send slip to 20 meters high);The low pressure and large flow volume pumps are normally used to send and transport slip in level pipes; The flow-variable pumps are normally used with filtrators. This kind of pumps can automatically vary the flow and pressure according to the filtration density.

The series of YB ceramic piston pumps are mainly used to transport ceramic slip, coal slip, clay slip and other mineral slip.They can also be used in food industry, chemical industry and electronic component and magnetic materials industry.
 
YB Series sludge piston pump

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