Clean Hot Air Circulation Oven

Hot air circulation oven is a universal drying equipment with a long history, which has a wide range of application, uniform temperature, high thermal efficiency and simple operation. It is one of the necessary drying equipment for most pharmaceutical and related enterprises, and is also a popular drying equipment for users.

Based on years of actual production experience and existing production technology, combined with the current national pharmaceutical industry GMP requirements, our company designed the oven that is higher than the current national GMP standard requirements for the pharmaceutical industry - clean oven, its technical characteristics are described as follows:

1, Equipment materials: internal and external walls are SUS304 stainless steel, the internal cavity is full of welding, rounded transition, making the oven without wind phenomenon in the working state, and making the equipment easy to clean, no water seepage phenomenon in the heat preservation layer, to ensure that the cleanliness of the items dried each time. The external wall is made of brushed board making the outer surface of the oven is flat, smooth, beautiful, no visible concavity and convexity;

2, Circulating fan impeller, volute shell are made of stainless steel, to ensure clean circulating air; selection of large air volume, high air pressure centrifugal fan as a circulating fan for forced ventilation, which can speed up the drying speed of the material to ensure the uniformity of material drying.

3, The drying oven air inlet is divided into two levels of filtration, the new air inlet for the intermediate filter, making the new air up to 300,000, after heating each cycle of hot air with high-temperature high efficiency filter filtration, so that the hot air into the drying oven are more than 10,000 levels of cleanliness, to ensure that the drying process of cleanliness;

4, The system is equipped with all stainless steel moisture exhaust fan, and the system's PLC program module collects the humidity in the system for intelligent control: According to the signal provided by the humidity control instrument, the damper actuator of the humidification port is controlled by the damper. At the same time, the damper is controlled by the frequency converter to output the corresponding frequency according to the size of the humidity signal, and the reasonable air volume is discharged to achieve the best humidification effect and achieve reasonable humidification. The moisture outlet is equipped with a medium effect filter to ensure the cleanliness of the return air of the moisture outlet.

5, Oven heating form: steam or electric heating. The material is stainless steel. Its has good heat dissipation effect and sanitary conditions. The fluctuation range is about ±1℃;

6, The circulatory system stroke from both sides of the main machine into the same time, concentrated to the middle exhaust air, compared with the conventional design to reduce the temperature difference between the left and right sides of the oven; According to the guiding rules of the air volume and air pressure of the air inlet and air outlet, multiple groups of punching plates with different ratios are designed as the distribution device of the inward hot air to achieve a smaller temperature difference. Moreover, the fixing method of the air equalizing network board and the main engine adopts the quick fixing method, which can quickly clean the inlet and outlet air duct to ensure the cleanliness of the chamber;

7, The equipment is designed with 5 sewage outlets in the air inlet, skip and air outlet, which can ensure that all the sewage is discharged quickly after cleaning. The five sewage outlets are gathered into a main pipe for centralized discharge, reducing the total sewage outlet, so that the plant can open less floor drains;

8, The equipment in the inlet and outlet duct design can cover the entire system of 7 online cleaning ports, in normal circumstances to achieve fast and simple online cleaning function, can also be directly set up online cleaning device, in order to achieve the true meaning of CIP;

9, The oven track is convex splints, and the bottom plate is connected by round foot welding, and the drying car is equipped with inclined pedal, which makes the drying car easy to enter and exit; At the same time reduce the dead Angle without affecting the blowdown performance; Stainless steel square tube is used for the column and stainless steel Angle steel is used for the beam of the oven, and argon arc welding is adopted. Wheels with high temperature resistant nylon wheels, each dryer with 2 directional wheels, 2 steering wheels. The whole dryer has reasonable structure, high strength, beautiful and practical;

10, The equipment heating system (heater, high temperature and high efficiency filter) is concentrated in the closed stainless steel chamber, good insulation effect, high cleanliness, and high temperature and high efficiency filter for the drawer type fast loading structure, can be cleaned and replaced quickly; The connecting parts and the system are connected with the adjustable screw quick installation design, which is convenient for maintenance and overhaul;

11, The oven door lock adopts advanced adjustable elastic door lock, good locking performance, easy to operate. High temperature and non-toxic silicone rubber sealing ring is used between the door and the box, which has excellent sealing performance. The insulation layer of the oven adopts ultra-fine glass wool, which has good thermal insulation performance.

12, All the round flanges in the system are connected by quick-opening clamp, and the method is designed by quick-mounting butterfly screws, which facilitates the disassembly and cleaning of the pipeline;

13, There are two quick verification ports on the equipment host, which is convenient to verify the temperature and humidity during the working process.

Industrial Oven