Views: 5 Author: Site Editor Publish Time: 2021-12-30 Origin: Site
There are several heating methods for glass reactors
The glass reactor has heating methods such as far infrared heating, steam heating, water bath circulation heating, heat conduction oil heating, or heat conduction oil electric heating. It is mainly heated by circulating steam in the oil, by welding a jacket outside the kettle, or directly inserting an electric heating tube into the jacket.
Glass reactors are widely used in pressure vessels in chemical, food, coating, hot melt adhesive, silica gel, paint, medicine, and petrochemical production processes, such as reaction, evaporation, synthesis, polymerization, saponification, sulfonation, chlorination, nitration, etc. , Such as reactors, reaction kettles, decomposition pots, polymerization kettles, etc. The reaction kettle is mainly composed of four parts: inner tank, jacket, stirring device, and support seat (the structure with heat preservation can be adopted according to the process requirements).
There are currently three most common heating methods:
1. Steam heating: When the heating temperature is below 100°C, steam can be used to heat the double-layer glass reactor. When the temperature requirement is within the range of 100-180℃, saturated steam can be used, and when the temperature requirement is higher, high-pressure superheated steam can be used to stop heating;
2. Electric heating: Electric heating is wound on the insulating layer of the double-layer glass reactor cylinder through a resistance wire, or installed on a special insulator some distance away from the double-layer glass reactor. Therefore, a small gap can be formed between the resistance wire and the double-layer glass reactor body;
3. Water heating: When the temperature requirements are not high during the consumption process, water heating can be used to stop heating;
At present, the most mainstream method is to use water or mineral oil to stop heating. Because of its low cost, convenient medium change, and easy maintenance, it is the choice of Fangda customers.
How to choose a glass reactor suitable for your own process conditions
The temperature control system of the glass reactor is composed of a processor and bottom equipment. The processor is very delicate, and there is an information layer that collects the data used on site, and manages it through processing and classification after collection. At the same time, it also has a control layer, that is to say, it is calculated from various aspects in the use of the glass reactor. So as to realize the control function. So how to choose a glass reactor suitable for your own process conditions, before choosing a glass reactor, you must first make a simple combing of the use conditions of the glass reactor and your own process.
1, select the appropriate size of the kettle body, the volume of the kettle body required = the total amount of materials * 1.33. We can calculate the size of the kettle body we need according to this formula.
2, when determining whether the reactor needs to be filtered or an ordinary reactor, if there is crystallization after the reaction is completed, this part of the product needs to be extracted, and it is recommended to use a filtration reactor
3, to determine the viscosity of the material, you must have a rough understanding of the viscosity of your material before selecting the kettle, so that we can hang a suitable stirring paddle and motor.
4. To determine the physical properties of our materials, we do not need homogeneous emulsification, ultrasonic dispersion, etc. If this part of the function is needed, we should complete the customization of the kettle body before buying, because most of the kettles cannot be compared after the purchase. Greatly change its process conditions.
5, Condensing device, there is a reflux device under the condenser of the standard kettle, whether it is confirmed that it needs to be directly refluxed into the kettle or need to install a collection device, the 1-5 liter glass reactor has an optional water separator.
6, determine if PH test is needed
7, determine whether to install a PTFE spray device, which is mainly used to clean the kettle
8, determine whether you need to lift the rotating frame, the body of the glass reactor can be lifted and rotated, which is convenient for pouring and cleaning.