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PLG series continural plate dryer

PLG series continural plate dryer 

PLG series continural plate dryer

 

1.Descriptions   

PLG Series Continual Plate Dryer Descriptions Plate dryer is a kind of high effective conducting and continuous drying equipment . Its unique structure and operating principle determine that it has advantages of high heat efficiency, low energy consumption,small occupying area,simple configuration,easy operating and control as well as friendly operating environment etc . It can be widely used in drying process in the fields of chemical industry. Pharmaceuticals , agricultural che micals , foods tuff , fodder , process of agricultural and sideline products etc , and is well received by various sectors in their practical usage . Now there are three big categorie s, named normal pressure , closed and vacuum styles; four sizes of 1200,1500,2200 and 3000; and three kinds of materials, namely A(carbon steel), B(stainless steel used for those all parts where materials are contacted) and C ( on the basis of B to add stainless steel materials for vapor pipes, main shaft and support, and stain -less steel linings for cylinder body and top cover). With a drying area being from 4 to 180 square metres, now we have hundreds of models of series products and various kinds of auxiliary devices available to meet requirements of drying materials for customers.

2.Principles

Wet materials are fed continuously to the first dryinglayer on the top of the dryer .They will be turned and stirred by rakes when the rake arm rotates and drop down to the outer edge of the large drying plate along the exponential helical line.On the small drying plate they will be moved to its outer edge and drop down to the outer edge of the large drying plate underneath,and will be moved inward and drop down from its central hole to the small drying plate on the next layer.Both small and large drying plates are arranged alternately so as materials can go through the whole dryer continuously.The heating media,Which could be informs of saturated steam,hot water or heat conducting oil will be led into hollow drying plates from one end to the other end of the dryer.The dried materials will drop from the last layer of the drying plate to the bottom layer of the shell body,and will be moved by rakes to the dischargeport.The moisture escapes from materials and will be removed from the moist discharge port on the top cover,or sucked out by the vacuum pump one the top cover for vacuum-type plate dryer.The dried materials discharged from the bottom layer can be packed directly.The drying capability can be raised up if equipped with supplementary devices such as finned heater,condenser for solvent in those dried paste and heat sensitive materials can be easily retrieved,and thermal decomosition and reaction can be also carried out.

 

3.Features

(I)Easy regulation and control, strong adaptability

1.Regulate thickness of materials , speed of main shaft , number of rake arm , style of and sizes of rakes to make drying process be optimal.

2.Each layer of drying plate can be led thermal or cold media individually to heat of cold materials and make temperature control accurately and easily.

3.Dwelling time of materials and be accurately adjusted.

4.Single flowing direction of materials without return flowing and mixing , even drying and stable quality , no re-mixing is needed.

(II)Easy and simple operation

1.Start and stop of dryer is quite simple.

2.After materials are stopped feeding and conveying, they can be easily exhausted out of the dryer by rakes.

3.Careful cleaning and observation can be carried inside the equipment through large-scale viewing window.

(III)Low energy consumption

1.Thinner layer pf materials, low speed of main shaft, small power and energy needed for conveying system of materials.

2.Dry by conducting heat so it has high heating efficiency and low energy consumption.

(IV)Frendly environment, solvent can be retrieved and dust powder discharge can meet requirement.

1.Normal Pressure Style: as low speed of air flow inside the equipment and moisture being high in upper part and low in lower par t, dust powder could float to the top of the equipment , so there is almost no dust powder in tail gas discharged from the moist discharge port on the top.

2.Closed Style: equipped with solvent retrieval device that can retrieve organic solvent easily from moist-carrier gas inclosed cir -culation for those subject to burning, explosion and oxidation, and poisonous materials in order for safe operation. Especially suitable for drying of flammable, explosive and poisonous materials.

3.Vacuum Style: if the plate dryer is operating under vacuum state, it is particularly suitable for drying of heat sensitive materials.

(V)Easy installation and small occupying area

1.As the dryer is in a whole to leave the factory and to be transported,it is quite easy to install and fix in th location only by hoisting.

2.As drying plates eing arranged by layers and installed vertically, it takes a small occupying area though drying area is larger.

 

4.Technical parameter   

.Drying plates

1. Designed pressure: Normal: 0.4Mpa Max: 1.6 Mpa

2. Operating pressure: Normal: <= 0.4Mpa Max: 1.6 Mpa

3.Heating media: Steam, hot water or heat conducting oil.

If the temperature of the drying plate <=100 , hot water can be used as heating media.

If the temperature is among 100 --150 , saturated steam( <= 0.4Mpa) or overheated steam can be used as the heating media.

If the temperature is among 150 --320 , heat conducting oil can be used as the heating media.

If the temperature >320 , electricity, heat conducting oil or melting salt can be used as the heating media.

. Material conveying system

1.Rotating speed of the main shaft: 110 revolutions/min. using solenoid or variable frequency changing speed adjustor.

2.Rake arm: In each layer of drying plate, there are 28arms fixed on the main shaft.

3.Rake blades: These blades are twisted on the rake arms. They float as well as the plates in order to contact the materials continuously.There are several types of blades for different needs.

4.Rollers: They are used to pulverize materials which are easy to be blocked or which need to be crushed. If fixed on proper position, the rollers can strengthen the heat conducting efficiency and drying efficiency.

. Housing cylinder

There are three styles of housing cylinders: normal pressure style, closed style, vacuum style.

1. Normal pressure style: Round cylinder or octagonal prism cylinder. There are two structures: as a whole or in halves . The main Conveying pipes for heating media can be fixed either inside or outside the cylinder.

2. Closed style: Round cylinder which can stand an inner pressure of 5 Kpa . The main conveying pipes for heating media can be fixed either inside or outside the cylinder.

3. Vacuum style: Round cylinder, the designed outer pressure for which is 0.1Mpa . The main conveying pipes for heating media Should be fixed inside the cylinder.

Type Diameter(mm) Height(mm) Area of dry( m2) Power(KW) Type Diameter(mm) Height(mm) Area of dry( m2) Power(KW)
1200/4 1850 2608 3.3 1.1 2200/18 2900 5782 55.4 5.5
1200/6 3028 4.9 2200/20 6202 61.6
1200/8 3448 6.6 1.5 2200/22 6622 67.7 7.5
1200/10 3868 8.2 2200/24 7042 73.9
1200/12 4288 9.9 2200/26 7462 80.0
1500/6 2100 3022 8.0 2.2 3000/8 3800 4050 48 11
1500/8 3442 10.7 3000/10 4650 60
1500/10 3862 13.4 3000/12 5250 72
1500/12 4282 16.1 3.0 3000/14 5850 84
1500/14 4702 18.8 3000/16 6450 96
1500/16 5122 21.5 3000/18 7050 108 13
2200/6 2900 3262 18.5 3.0 3000/20 7650 120
2200/8 3682 24.6 3000/22 8250 132
2200/10 4102 30.8 3000/24 8850 144
2200/12 4522 36.9 4.0 3000/26 9450 156 15
2200/14 4942 43.1 3000/28 10050 168
2200/16 5362 49.3 5.5 3000/30 10650 180

 


 

ChangZhou HuaXia Drying&Granulation Equipment Co.,Ltd

Address:Industry zone in Shengan village, San he kou, Zhenglu Town, Wujin District, Changzhou, Jiangsu, China

P.c:213116

Sales Manager:Chen changlong.Mobile: 0086-136 0150 2261

TelePhone:86-519-88902680 Fax:86-519-88903018

E_mail Address :export@huaxiadrying.com

Website:http://www.huaxiadrying.com