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Lab drying oven for industry

The drying ovens produced by ZZKD laboratory equipment manufacturers are divided into two types: vacuum drying ovens and blast drying ovens (electric heating blast drying ovens). They can be used in laboratories and industrial production, small capacity drying ovens can be used in laboratories, and large capacity drying ovens are suitable for industrial production. The ZZKD drying oven manufacturer's DZF series vacuum drying oven and DHG series blast drying oven are the drying oven series currently popular in the market. Below we will introduce the drying ovens of these two series in detail.

Vacuum drying oven

The vacuum drying oven is specially designed for drying heat-sensitive, easily decomposed and easily oxidized substances. It can maintain a certain degree of vacuum in the working room and can be filled with inert gas, especially for some complex components. Fast drying, temperature setting, display and control using intelligent digital temperature regulator.

The temperature of DZF series vacuum drying oven can reach RT + 10 ~ 200 (250) ° C, and the capacity can be selected from 8L small capacity to 430L large capacity.

Features of Vacuum Drying Oven

Intelligent temperature regulators have over-temperature protection. If the temperature in the working room exceeds the set temperature during the operation of the equipment, the over-temperature protection circuit will be activated to cut off the heating circuit.

The electric heating vacuum drying box can maintain a certain degree of vacuum in the working room and use an intelligent digital temperature regulator to set, display and control the temperature. The temperature regulator uses computer technology to collect and process the temperature signal in the working room, so that the temperature in the working room can automatically maintain a constant temperature. This temperature control system belongs to P.I.D intelligent temperature control, with reliable performance and convenient use.

Compared with conventional drying technology, it has the following advantages:

◆ The vacuum environment greatly reduces the boiling point of the liquid to be driven out, so vacuum drying can be easily applied to heat-sensitive substances;

◆ For samples that are not easy to dry, such as powder or other granular samples, using the vacuum drying method can effectively shorten the drying time;

◆ Various mechanical parts or other porous samples are cleaned by vacuum drying method, leaving no residue after drying completely;

◆ Safer to use ---- under vacuum or inert conditions, completely eliminate the possibility of oxides exploding when exposed to heat;

◆ Compared with ordinary drying that relies on air circulation, powder samples will not be blown or moved by flowing air;

Control features: It has the function of parameter memory protection due to power outage and crash state data loss, call recovery function.

Performance characteristics:

◆ Adopt streamlined arc design, the shell is made of cold-rolled steel plate, and the surface is electrostatically sprayed;

◆ This machine temperature control system adopts microcomputer single chip microcomputer technology, temperature control, timing, over temperature alarm;

◆ The display is a dual-screen high-brightness digital tube display. The displayed value is accurate and intuitive, and the performance is superior. The touch button sets the adjustment parameters.

◆ The temperature control sensor uses imported capacitor-type components;

◆ Using imported motors and wind blades; with timing and timing functions;

◆ Inner liner is made of stainless steel; semicircular four corners are easy to clean;

◆ The full tightness of the case door can be adjusted by the user at will, and the integrally formed silicone rubber door seal ring ensures high vacuum in the case;

◆ The machine workshop has a rectangular parallelepiped structure to maximize the effective volume. The door of the box is made of toughened and bullet-proof double-glazed glass doors, which allows users to observe the objects cultivated in the workshop.

DZF-6090 Vacuum Drying Oven	Large capacity drying oven
DZF-6050 Vacuum Drying Oven	DZF-6010 Vacuum Drying Oven

Blast drying oven

The electric heating blast drying oven is also called "oven". As the name implies, the electric heating method is used to perform the blast circulation drying test. It is divided into two types: blast drying and vacuum drying.
The blast drying is to blow out hot air through a circulating fan to ensure the temperature balance in the oven. Vacuum drying is to use a vacuum pump to draw out the air in the oven, so that the atmospheric pressure in the oven is lower than normal pressure, so that the product can be tested in a very clean state. It is a commonly used instrument and equipment, mainly used to dry samples. Provide the temperature environment required for the experiment. The drying oven is used in various industries such as chemical industry, medicine, foundry, automobile, food, machinery and so on. Generally divided into galvanized steel and stainless steel liner, pointer and digital display, natural convection and air circulation, conventional oven and vacuum type.

DHG series blast drying oven temperature can be adjusted between RT + 10 ~ 200/300 ° C, and the capacity can be selected between 30L and 1000L.

Features of blast drying oven

◆ Electric heating blast drying cabinet oven structure:

The design is perfect. The oven body is processed by CNC machine tools, and the door is opened. It is easy to operate.

The inner tank is made of SUS304 stainless steel plate, and the outer shell is A3 plate spray-coated, which is more smooth and beautiful.

The circuit system side is opened by a door, which is convenient for maintenance and repair.

The tightness of the oven door can be adjusted, and the integrally formed silicone rubber door seal ring ensures the height inside the oven.

Storage, heating, testing, and drying are carried out in an oxygen-free or inert gas environment, so they will not oxidize.

◆ Electric heating blast drying oven control execution system:

Temperature controller adopts touch keys, digital LED display, PID intelligent control instrument

Pt100 platinum resistance temperature sensor;

◆ Electric heating blast drying oven protection system:

The complete machine protection system consists of over-temperature protection and alarm devices.

The integrity of the execution components and test pieces is guaranteed.

DHG-9140A Blast Drying Oven	DHG-9030A Blast Drying Oven
DHG-9420A Blast Drying Oven	DHG-9070A Blast Drying Oven

There are so many characteristics of vacuum drying oven and blast drying oven, what is the difference between them?

Difference between vacuum drying oven and blast drying oven

◆ Vacuum drying oven

The vacuum drying oven is a vacuum pump that draws the space where the dried materials are located to a negative pressure, which is the so-called vacuum state. In a vacuum state or a low pressure state, the boiling point of water, solvents and other volatile components in the material is reduced, so that it can be detached from the surface of the material particles and pumped away by the vacuum pump at a lower temperature. It is mainly used for materials that are oxidized, polymerized and other chemical reactions occur at high temperatures. It also has the dual effect of heating to accelerate the volatilization of moisture, solvents and volatile components and thus to escape from the surface of the material.

The vacuum drying oven is specially designed for drying heat-sensitive, easily decomposed and easily oxidized substances. It can purge inert gas into the interior, especially some items with complex components can be dried quickly.

Scope of application: Vacuum drying ovens are widely used in biochemical, chemical and pharmaceutical, medical and health, agricultural scientific research, environmental protection and other research and application fields. They are only used for powder drying, baking and disinfection and sterilization of various glass containers. It is especially suitable for fast and efficient drying treatment of drying heat sensitivity, easily decomposed, easily oxidized substances and complex components.

◆ Blast dry oven

The blast drying oven is under the action of the fan, which quickly removes the volatile molecules that are volatilized from the surface of the material through air exchange, so as to achieve the effect of quickly drying the material. It is to gradually dry the material by thermally acting on the molecules of moisture, solvent or volatile components in the material to make its molecules move quickly to get rid of the dry material. Its drying speed can be fast and the drying temperature can be very high. It is a commonly used instrument and equipment, mainly used to dry samples, and can also provide the temperature environment required for experiments, applications and various industries such as chemical, electronics, foundry, automotive, food, machinery and so on.

Generally divided into stainless steel liner and galvanized steel, digital display and pointer, air circulation and natural convection.

Scope of application: for industrial and mining enterprises, laboratories, scientific research units, etc. for drying, baking melting wax, sterilization, and can also be used for general constant temperature tests.

At the end of the article, we provide you with some general maintenance methods of the drying oven to help you use the drying oven better.

1. Clean the surface and the dust of the drying oven, and keep the drying oven clean and hygienic.

2. Regularly check whether the fan of the drying oven is running normally and whether there is any abnormal sound. If there is any abnormal sound, immediately shut down the machine for inspection.

3. Regularly check whether the vent of the drying oven is blocked, and clean up the dust regularly.

4. Regularly check whether the thermostat of the drying oven is accurate. If it is not accurate, please adjust the static compensation or sensor correction value of the thermostat.

5. Regularly check the heating tube of the drying oven for damage and the wiring for aging.

6. If there is a sudden power failure, turn off the power switch and heating switch of the drying oven to prevent it from automatically starting when a call comes in.

Of course, don't forget the rotary vane vacuum pump commonly used in drying oven.