Grape disease prevention measures during rainy season

Seeing the initial onset of the disease, timely treatment See the first symptom of the disease, that is, symptomatic spray, with 70% Kebo 600 times solution, 80% ethyl phosphate aluminum 300 times solution or 1:0.7:180 times Bordeaux mixture to prevent downy mildew.
Appropriate amount of fertilizer to enhance the tree potential Rainy season, will cause loss of fertility. According to the loss of fertility of the land and the growth of the grapes, the amount of fertilizer should be increased according to the method of “less meals and more meals”.
The topdressing of the roots is done with half the effort. It should be combined with spraying, and sprayed separately if necessary. 0.5% urea can be added when spraying Bordeaux mixture. When spraying the acid, add 0.5% urea and 0.3% potassium dihydrogen phosphate. It is also possible to spray reliable quality foliar fertilizer. The new fertilizer must be used in a large area after a small area trial.
Timely loosening soil and increasing soil permeability After heavy rain and heavy rain, the surface of the vineyard will be knotted, resulting in hypoxia, reduced resistance and easy infection of the bacteria. In the rainy season, we must grasp the rainy day gap and cultivate the vineyard to increase soil permeability.
Clean the secondary tips to facilitate ventilation and light. During the rainy season, the grapes are the most prolonged, and the incidence of secondary shoots is very high. It is necessary to pick the heart in time and wipe off the secondary tip. For plants with too many new shoots, a part of them should be removed to facilitate ventilation and light transmission and improve resistance.
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High-efficiency Centrifugal Blower

Using the latest design, in line with the "three of" standard two rows of large spacing cupola, for the current casting industry commonly used in a cupola, the main structural features for the two rows of vents, row spacing larger, bottom coke burning The formation of two independent combustion zone, by stretching the overheating zone, an increase of hot metal overheating and end coke intense combustion, stable furnace conditions, hot metal temperature, hot metal quality. In accordance with the supply air temperature is divided into cold air, furnace hot air two structures, by mining different temperature air supply to achieve different melting requirements.

 

high centrifugal fan



            Centrifugal blowers are widely used in sewage treatment, smelting blast furnace, coal preparation plant, mine flotation, chemical gas, vacuum and other fields, can also be used to transport other special gases.


Features:

1. Compact structure: beautiful appearance, good stability, easy installation and maintenance.

2. Smooth operation: Optimized design of the impeller to reduce the axial force to a minimum, and efficient impeller, and static and dynamic balance correction, the machine running smoothly, without any damping device in the case of bearings Amplitude ≤0.04mm.

3. Low noise: blower operation, without any mechanical friction, the use of a reasonable blade-shaped line to the sound to a minimum. Centrifugal blower noise is high-frequency noise, as long as there are obstacles, can be noise, so the fan room almost no noise.

4. Oil-free machinery: Blower bearings with grease lubrication, bearing life of more than three years. Fan does not generate oil and gas during operation. Special requirements fans, with molybdenum disulfide lithium grease lubrication bearings.

5. Impeller: Impeller with a special compound linear, reducing internal leakage and improve the volumetric efficiency.

6 easy to adjust: the inlet valve to regulate flow, the outlet valve to regulate the pressure.

7. Drive: usually using a two-pole asynchronous motor, you can also use four-pole motor drive. Depending on the user grid, different voltage motors can be used.

8. Sealing: In addition to each level of import impeller impeller, the interstage and the housing at both ends with a labyrinth seal to prevent gas leaks.

9. Cooling: exhaust bearing housing has two structures, air-cooled and water-cooled, as the impeller on the level of gas compression, resulting in the exhaust casing temperature is much higher than the intake casing. In the exhaust bearing air-cooled or water-cooled device to extend the bearing life.

10. Bearing temperature control alarm: fan accessories with temperature control box, connected to the bearing through the PT100 resistance, when the bearing temperature exceeds the set temperature, the temperature control box will automatically alarm.

11. Transmission: a coupling drive, belt drive, gearbox drive three. According to different equipment and technology, choose a different transmission


High-Efficiency Centrifugal Blower

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Shenzhen Fu Sheng Electric Co., LTD. , http://www.fushengfan.com