The use of plant protection machinery should pay attention to the problem
Machine preparation 1 Correctly select the type of sprayer, the type of spray head, and the size of the spray hole according to the requirements of the control object and the spray operation. For example, in the case of pest control in Daejeon, hydraulic sprayers and conical fog nozzles were selected. Weeding spray should be used sprayer, fan-shaped spray head. Fruit trees, sidewalk trees should use spray guns, high pressure, hydraulic sprayers, or airborne sprayers. 2 Check the equipment before operation to ensure that all parts are smooth, switchable, and well atomized. Each part is in good technical condition. 3 According to the spray pressure during normal operation and the determined nozzle spray, the flow rate (l/min) of each nozzle is measured and the total flow is equal to the sum of the flow rates of the respective nozzles. 4 trial spray. Check if it works properly. Spraying operation 1 The calculation of the walking speed. According to the requirements of agricultural technology, the unit's walking speed V is calculated as follows: V = 40 nozzle flow rate (l/min)/spray width (m/acre application rate (l/min) Speed ​​of travel - determined, must not be changed arbitrarily , It is an important parameter to guarantee the spraying effect.. 2 The height of the nozzle from the target determines the height of the nozzle from the target according to the nozzle used.. 3 Walking method - generally adopt the shuttle method, and pay attention to the connection of the adjacent work width. Safety technology in operation. Safety equipment should be worn. Eating and drinking are forbidden during work. Before work is completed, it must be washed thoroughly before eating. Changes in wind direction should be taken into account during operation. Attention should be paid to splashing when adding medicine. The liquid container should be handled in time. Can't throw it anywhere.
Medical Mask is a kind of hygiene product. It is generally worn on the mouth and nose to filter the air entering the mouth and nose to block harmful gases, odors, droplets, viruses and other substances. It is made of gauze or paper and other materials. .
The Disposable Medical Mask has a certain filtering effect on the air entering the lungs. Wearing a mask has a very good effect when working in a polluted environment such as dust when respiratory infectious diseases are prevalent. Masks can be divided into 3 Ply Disposable Masks and air-supplied masks.
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