Kaolin clay and calcium carbonate processing automatic industrial decanter centrifuge

Description of the Kaolin clay and calcium carbonate processing automatic industrial decanter centrifuge

 

A decanter centrifuge (also known as solid bowl centrifuge) separates continuously solid materials from liquids in the slurry, and therefore plays an important role in the wastewater treatment, chemical, oil, and food processing industries.

 

Our Decanter uses centrifugal acceleration for optimum dewatering, efficiently separating solid and liquid phases. With automatic adjustment and ideal retention time, we ensure the best possible separation result. The system includes a decanter scroll and bowl, impeller (skimmer), and a

centrally arranged feed pipe, making it economical, efficient, and comfortable to use.

 

 

Working principle of the automatic industrial decanter centrifuge

 

There is spiral which is the feeding spiral which is has the same axis with the drum.The spiral and the drum rotate in different speed but in the same direction.The rotate difference is caused by the differential.The suspension enters the spiral through the feeding pump in the centre, when it starts to speed up the material goes into the drum.Under the effect of the centrifuge force, the relatively heavy solidoid sediments into slag blanket on the surface of the drum wall, then the spiral push the slag blanket to the drum cone section for further dehydration, latter it will be discharged from the small section slag hole.While the relatively light liquicdoid forms the inner liquid cycle, and it will be discharged from the large end overflow gate.

 

 

Advantages of the automatic industrial decanter centrifuge :

 

1.Decanter centrifuges have a clean appearance and have little to no odour problems.

 

2. Not only is the device easy to install and fast at starting up and shutting down but also only requires a small area for operation compared to other competitive processes.

 

3. The decanter centrifuge is versatile as different lengths of the cylindrical bowl section and the cone angle can be selected for different applications.

 

4. The machine can operate with a higher throughput capacity than smaller machines. This also reduces the number of units required.

The device is simple to optimise and operate as it has few major variables and reliable feedback information.

 

5. The decanter centrifuge has reduced labour costs compared to other processes, as it requires low continuous maintenance and operator attention.

 

 

Decanter centrifuges process characteristics

 

1. The separation process in a decanter centrifuge relies on a few process characteristics such as centrifugal force or G-force, sedimentation rate and separating factor, differential speed between the conveyor and bowl, and clarity of the liquid discharge.

 

2. Decanter centrifuges require a centrifugal force for the separation of the solids from the liquid. This characteristic is dependent on the radius of the centrifuge and its angular rotational speed. A decanter centrifuge applies a force equivalent to several thousand G's, which reduces the settling time of the particles. It is also favoured to maintain a large G-force, which will result in an improved separation.

 

3. The rate at which sedimentation occurs is an important characteristic of the decanter centrifuge separation process. The sedimentation rate is influenced by the particle size, the shapes of the particles, their density differential between solid and liquid and the viscosity of the liquid. This process characteristic can be improved by utilizing flocculating agents. The sedimentation rate is also dependent on the separating factor of the decanter centrifuge, which is related to the centrifugal force.

 

4. The exterior bowl and the scroll conveyor rotate at different high speeds. This differential speed between the two is accountable for the sedimentation throughout the decanter centrifuge cylinder. A high differential speed results in a smaller residence time of the cake settlement,

so it is necessary to keep the cake thickness to a minimum to avoid impairing the discharge quality. Keeping the cake thickness

to a minimum also aids in the improvement of the cake dewatering process. For this reason, it is necessary to obtain an optimal differential speed to balance the cake thickness and quality.

 

5. The characteristic above all affects the clarity of the liquid output which is dependent on the volumetric throughout rate,where a higher flow rate will result in a poor liquid clarity. Another characteristic that influences the clarity of the liquid output is the differential speed. A low differential speed results in a better clarity, therefore, aiding in the separation process. The G-Force also plays a role in the clarity of the liquid discharge. Higher G-force results in an increase in the separation of the solid particles from the liquid and yields a better clarity.

 

 

Application:

 

The centrifuge is applicable to the separating of the suspension containing solid-phase granules with the diameter greater than 0.005mm and with the concentration being 2-40%.

It has found wide applications in such trades as chemical, light industry, pharmacy, food, environmental protection, etc.

For example: adipic acid, alum, aluminum hydroxide, ammonium hydrogen carbonate, ammonium chloride, ammonium nitrate, ammonia sulfate, anthracene, antibiotics, barium chloride, barium carbonate, barium sulfate, benzene, benzene carbonic acid, blood products, blue vitriol, borax, boric acid, pot ale, calcium carbonate, calcium citrate, calcium hydroxide, calcium nitrate, calcium oxalate, casein, fiber, chrome pillow, clay, methylcellulose, coal flotation waste, corundum, velveteen, corn embryo, starch, coconut milk, food oil, fish processing, salt cake, mirabilite, hops, pesticide, diatomite, herbicide, tartaric acid, sodium sulfate, sodium phosphate, sodium nitrate, charcoal black, etc.

 

 

Basic technical parameters:

 

Model	Structure type	Rotating drum		Rotating speed (r/min)	Separation factor	Processing capacity of admixtures (m3/h)	Motor power (KW)	Total weight (kg)
		Dia. (mm)	Length-to-diameter ratio
LW220	Counter flow type	930	4.22	4800	2835	0-1	7.5	1500
LW300	Counter flow type	1200-1350	4-4.5	4200	3000	1-3	11	1500-1800
LW355	Counter flow type	1250-1600	2.42-4.51	3800	3200	2-8	15	1800-2000
LW400	Counter flow type	1200-1800	3-4.5	3400	3000	5-10	30	2000-2800
LW450	Counter flow type	1350-2000	3-4.5	3400	3000	10-20	30	2800-3500
LW530	Counter flow type	2280	4	2700	2150	20-30	45	3500-4000

 

 

Our service:

 

1. We have professional person on line to advise you the most suitable type of machie for according to your requirement.

2. Provide you comprehensive.easy-understanding and detail information and technical data about the machie you interested;solve your confusions or questions about the machine

3. Arrange the schedule if you pay a visit to our factory.

 

 

More details information about our corporation --Toper 

 

1. About Toper
Zhengzhou Toper is the leading supplier of industrial equipment in China, and also the professional exporter and service provider

of filter and separation equipment.

2. Global service
Since 2006, Zhengzhou Toper has supplied products and service to over 200 enterprises of 30 more countries and areas

excluding China mainland.
Southeast Asia: Indonesia, Malaysia, the Philippines, and Thailand; West Asia: Turkey,

Uzbekistan and Tajikistan; Northeast Asia: South Korea, Mongolia; Middle East: Israeli,

Palestinian, Oman, Bahrain, Iran; Europe: Russia, Italy, Spain, Ukraine, Finland, Poland,

Romania; North America: Canada, America; South America: Mexico, Guatemala, Argentina,

Brazil, Chile, Peru, Bolivia; Africa: South Africa, Algeria and so on.
Our products are well-known at home and abroad. We have thousands of users throughout China and clients in the

world markets. "Establish TOPER brand for the satisfaction of users" is our persistent pursuit.

3. Products
Full automatic filter press, membrane filter press, mechanical compress filter press, jack compress filter press, cast iron plate and frame filter press, stainless steel filter press, round plate filter press, belt squeezing filter press, belt thickening and dewatering filter press, three-foot centrifuge, flat panel filter press, horizontal screw sedimentation centrifuge, tubular centrifuge, vacuum disc type filter, various filter equipment, filter plate and filter cloth and so on.