Several points to be aware of when operating a single-effect concentrator safely

When the solution is evaporated in the evaporator, the secondary steam generated is no longer used, and this evaporation operation is called single-effect evaporation. An evaporator using a single-effect evaporation method is called a single-effect evaporator.

The single-effect concentrator is a raw steam into a one-effect heater to heat the liquid while simultaneously entering the effect evaporation chamber under the action of vacuum, returning from the curve to the heater, heating again, entering the evaporation chamber to form a circulation, and the feed liquid enters the evaporation chamber. The mist is quickly evaporated and the second vapor evaporated into the condenser. The water in the feed liquid is continuously evaporated and the concentration is increased until the desired concentration is reached.

Proper and reasonable use of equipment is a basic method to fully utilize the efficiency of the concentrator equipment and extend the service life of the concentrator equipment under the condition of saving maintenance costs, and is also an important task of the concentrator equipment management work. Proper use of the device should do the following:

1. Properly arrange production tasks. Different concentrator devices have different process performance and load capacity. The enterprise shall arrange the production tasks according to the process performance of the concentrator equipment, and formulate the labor quota according to the load capacity (work efficiency) of the concentrator equipment, so that the process performance and load capacity of the equipment are compatible with the production tasks, and it is strictly forbidden to use the "fine machine rough use" and Overloaded.

2. Configure the concentrator equipment reasonably. According to the production process and process characteristics, as well as the process intensity, the enterprise should correctly select and rationally configure the equipment so that the equipment structure is reasonable, so that they can coordinate the process performance and production capacity, avoiding the “fine machine rough use” and “ Big horse car" to achieve the purpose of rational use of equipment.

3. Formulate scientific rules and regulations. To use concentrator equipment correctly, it must be guaranteed by scientific and practical rules and regulations. Enterprises should develop concentrator equipment management systems, operating procedures, maintenance procedures, and post responsibility systems based on actual conditions and equipment characteristics, and strictly implement various rules and regulations to achieve the correct use of equipment.

4. Provide good working conditions. All concentrator equipments are designed and manufactured according to certain scientific and technical principles in order to meet the actual needs of production, and require working under certain working conditions. The reliability of the equipment is also achieved under certain working conditions. Therefore, the creation of good working conditions is an important condition for ensuring the normal operation of the concentrator equipment, prolonging the service life and ensuring safe production.

5. The equipment has a large ethanol recovery capacity, sometimes called an ethanol recovery unit, but the energy saving effect is not as good as the double effect and three effect concentrators. The equipment adopts the combination of external heating natural circulation and vacuum negative pressure evaporation, and the evaporation speed is fast, the concentration ratio can reach 1.3; the cleaning is convenient (the upper cover of the heater can be cleaned), the operation is simple, and the floor space is small.

Single-effect concentrator should pay attention to when using:

(1) When recovering ethanol, the temperature inside the evaporator should be controlled at about 80 °C.

(2) The degree of vacuum should not be too large. If the vacuum is too high, the ethanol will be sucked away, resulting in low recovery rate; if the degree of vacuum is too large, the liquid will be excessively boiled and the liquid will be lost.

(3) The temperature of the cooling circulating water should be lower than 40 ° C. The lower the temperature, the better the condensation effect. Under normal circumstances, the ethanol concentration of the single-effect concentrator can reach about 85%, and then refined by the distillation tower can reach 90% to 92%.

The above is all the sharing today, I hope everyone can help everyone after reading this article.