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Oven adopts hot air to dry the raw materials. A ozone generator is equipped to sterilize after drying. - details see: https://www.machineto.com/ctn-dryer-oven-with-ozone-sterilizing-10289315

CTNhot-air circulating oven with ozone sterilization

[Improved type: automatic control, self-cleaning control]

I. Equipment Summary

CTN improved type of hot-air circulating oven is equipped withlow noise high temperature resistantmacro axisaxial-flow fan and automatic temperature and humidity control system;the whole circulating system is totally closed;the steam valve of heating system is“Siemens”proportional valvePID thermostatic control; as well,humidity-dischargingsystem adopts“Siemens” anti-reflux proportional valveand frequency converter,humidity-discharging fan and Swiss humidity transducer to achieve the automatic proportional humidity-discharging. So, the thermal efficiency of whole oven will be improved from the existing 60% to about 70%. Moreover, there is a build-in spraying cleaner system inside the oven, which can help users to clean the air duct, oven liner and heat exchanger daily.

The successful design of CTN improved-type oven achieves the update oftraditional ovenwhich will save more energy for users.

II. Application

This oven is the popular type drying equipment with wide range of application. It can be used for the thermal curing, drying and dehydration of materials and products in industries such as pharmacy,chemical,food,agricultural byproducts,aquatic products,light industry,heavy industry, etc. The raw materials can be bulk drug, crude drug and prepared slices of Chinese crude drugs, extract, powder, granule, medicinal granules, water-bindered pill, packing bottle, pigment, dyestuff, dehydration vegetable, dried fruit and melons, sausage, plastic resin, electric elements, baking varnish and so on.

If the materials need to be sterilized after dried, a ozone generator can be equipped to meet the requirments.

Ozone sterilize summary:

ozone sterilizer can produce a certain concentration of ozone to oxidation damage the inner structure of microbes such as bacterias, virus. So that to kill the vegetative form of bacteria, spore of hepatitis A/B virus and fungus, protozoan cyst and so on. Besides, ozone has the strong functions of removing organic peculiar smell such as mold, fishy and stink, etc. Also, it has the fresh-keeping action to vegetables and fruits, special for the sterilization vaccination of mushroom, pest control in grain and fresh-keeping.

III. Features

1,Humidity-discharging outlet is equipped with anti-reflux proportional valve (arbitrary angle within 0-90°), which can automatically open thehumidity-dischargingvalve in proportion and adjust the humidity-discharging fan synchronously according to the measured value of moisture.

2,The drying process is controlled automatically according to the setting value and measured value of humidity; which makes the control more reliable and reasonable. Bycontrast,the drying time oftraditionaloven is set byempirical values; however, the users’ empirical values or site condition is less of reliability which will directly affect the drying quality.

3,The oven adopts hole-punched air boards which features easy of disassembly and cleaning and can make air well-distributed. By contrast, the traditional air boards are the kind of blind sheets which is less of air distributed effect and inconvenient of cleaning or dismounting.

4,The door is automatic locking door with the power source of air-type or electric type. According to the customers’ requirements, the door can be made into double interlocking door; as well, the sanitary silica gel sealing strips can bemade intoinflatable orW-type double-ditch negative pressure one, which are removable and easy of installation and cleaning.

5,The oven is equipped with the automatic cleaning system which can rotated 360°to spray clean the oven liner, air duct and heat exchanger. After cleaning, the oven will be timely dried out automatically, which can meet the GMP requirements.

6,Finned steam heat exchanger is the kind of removable, which is easy of cleaning and maintenance.

7,Main control system is “Siemens”program controller +temperature and humidity mould + 7inches color touch screen+ mini-printer;the mean time between failures of control system is above 50,000 hours.

8,The cover of whole oven is treated as flat gloss with the degree of finish Ra<0.8µm; Polishing degree of all thewelding parts is Ra<1.0µm, moreover, the parts are all passivating treated.

9,The in-wall of oven is full welded and polished.There is no dead corner inside because the in-wall adoptsace connectionwith degree of finish Ra<0.4.

IV. Technical parameter:

Type	Drying capacity per batch (kg)	Drying volume (m3)	Inner chamber size (mm)	Outline dimension (mm)	No. of equipped drying trays	No. of equipped drying cart
CTN-O	25	1.29	W820×D1080×H1460	W1730×D1360×H2000	16	0
CTN-I	120	2.66	W1690×D1080×H1460	W2600×D1360×H2000	48	2
CTN-II	240	5.10	W1690×D2080×H1460	W2600×D2360×H2000	96	4
CTN-III	360	8.35	W2750×D2080×H1460	W3660×D2360×H2000	144	6
CTN-IV	480	11.39	W3750×D2080×H1460	W4660×D2360×H2000	192	8

Heating method: electric or steam.

Material of oven: full stainless steel

The size of tray (L×W×T): 460×640×45mm

Type of tray: flat tray, hole tray, non-sticky pan.

The size of cart (W×D×H):700×920×1425mm; 12 levels.