In today's society, fruit waxing is more and more favored by fruit merchants. Artificial waxing to the fruit, the main purpose is to keep fresh, anti-corrosion. Generally, seasonal fruits and local fruits do not use edible wax, while anti-season fruits and imported fruits need long-term storage and long-distance transportation, and their surfaces are mostly preserved by edible wax.

Waxing fruits is an internationally allowed preservation method. In developed countries and regions such as the United States, Japan, and Europe, there are mature technological processes and regulations for waxing fruits. Edible wax is an extract of natural wax of animals and plants, and the fruit itself will naturally form this substance. Its safety is evaluated, so the use of edible wax for fresh fruit skins is theoretically safe.Fruit waxing is mainly for good sale. Take oranges as an example. There is dust on the surface of oranges that have just been picked from trees. Generally, fruit growers will wash them first and then wax them through machines, so that fruits sell well and sell at a high price. Many fruits are waxed. Such as citrus, orange, chestnut and so on. It is understood that some large-scale citrus processing enterprises have a kind“Fruit cleaning and waxing machine”After the orange screening is completed, the equipment will automatically clean, disinfect, wax and dry.

Generally, a fruit cleaning and waxing machine is made of the following6Part of the composition.

1. On-line hoist

Responsible for fruit on-line buffering, fruit homogenization, lifting and conveying, and properly turning over fruits so as to manually sort out damaged fruits.

2. Cleaning machine

Responsible for fruit multiple flexible cleaning, low temperature drying dehydration, flexible wax coating and other functions.

3. Dryer

Responsible for low temperature drying and wax curing of fruits after wax coating.

4. Classifier

Responsible for grading fruit by size.

5. Control System

Responsible for the coordination action and safety protection of the mechanical and electrical equipment of the whole line.

To sum up, in the second part of the dryer, both cleaning and wax coating are needed, and these liquids need liquid storage tanks. We need to detect when the cleaning agent and wax coating agent are used up. If the wax coating agent is used up when the machine is started, but the machine is still running continuously, which is not only prone to equipment failure but also wastes some manpower and material resources. Here, it is recommended to use the liquid level switch made by SST in Britain, which can monitor the zui high liquid level and zui low liquid level of the liquid level at will. It adopts infrared principle, is small and compact, and has high sensitivity. Different types such as economical and industrial types can be provided, and customization is also supported. The following are the characteristics of industrial level switches produced in SST:

Model:LLCIndustrial Grade

Package: polysulfone or transparent nylon

Thread:M12x1、1/2”SAE、1/4”NPT

Temperature resistance:-40~125℃

Logic: air input high or low

Power supply: up30V

Circuit:NType,PType,N & PType