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.
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.
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 High-Efficiency Centrifugal Blower,Centrifugal Exhaust Fan Blower,High-Efficiency Dedusting Centrifugal Blower,High Efficiency Energy Saving Centrifugal Blower Shenzhen Fusheng Motor Co.,Ltd , http://www.fushengfan.com
When the potato is added with potassium fertilizer during growth, it can increase the swell pressure of the crop cells, make the cells rich in elasticity, and can regulate the opening or closing of the leaf cells, which is beneficial for the crop to absorb more carbon dioxide to make carbohydrates and form starch and sugar. Class II; can promote root development, absorb more water, alleviate water evaporation, improve crop drought resistance; three can promote the development of stem cellulose, improve the support capacity of stems, enhance crop resistance, resistance to pests and diseases It is beneficial to transport organic nutrients (starch) in crops to storage organs (underground rhizomes, fruits), accelerate the expansion of roots and pods, thereby increasing yield and improving quality.
The application of potassium fertilizer in potato production generally adopts two methods: base fertilizer and topdressing. The distribution of NPK fertilizers, 50% nitrogen fertilizer, all phosphate fertilizer and most potassium fertilizer. The fertilizer type of the base fertilizer can be selected as a general-purpose compound fertilizer, and a single fertilizer can also be used. Urea, ammonium nitrate and potassium sulfate can be used for 50% nitrogen and a small portion of potassium for top dressing.
At the time of application, the period in which potassium is most needed should be seized. One is the seedling stage. Each acre can be applied with 3 to 5 kg of potassium chloride or potassium sulfate or grass ash (containing 7.5% of effective potassium) 25 to 30 kg as the base fertilizer, evenly spread during soil preparation, and soil and fertilizer are mixed. Potassium fertilizer can also be applied as a seedling fertilizer. It should be applied with 2 to 3 kg of potassium fertilizer per acre or a hole. The depth requirement is about 10 to 15 cm. After fertilization, water is applied and covered. The second is in the tuber formation period. The same amount of potassium fertilizer can be used per acre, and the application of crack fertilizer and potato fertilizer after the expansion of the potato block or the lower needle of the fruit pod can effectively accelerate the organic nutrient of the stem and leaf to the potato block. In the late stage of potato growth, 1% potassium sulphate or 0.3% potassium dihydrogen phosphate or 5% ash water (after immersing for 24 hours, take the clarified liquid or filtrate), spray 1 or 2 times outside the root (interval 7) ~10 days), can reduce leaf temperature, is beneficial to drought, and eliminate pests and diseases (in combination with prevention and control of pests and diseases), the effect is very significant.
It should be noted that the time of top dressing should not be too early, and it is generally carried out after the expansion of the potato pieces. Premature topdressing, especially after a large amount of nitrogen fertilizer, will cause the aboveground part to prosper and the lower part to form small potato pieces. Potassium chloride and potassium sulphate are physiologically acidic fertilizers. Long-term application should prevent soil acidification, and can be applied with appropriate amount of lime. Potassium chloride should not be applied to salinized soil.
High-efficiency Centrifugal Blower
Features:
Potatoes have potassium-sparing properties, and the demand for potassium is large. In cultivation, the application of potassium fertilizer should be emphasized. For every 1000 kg of potato tubers produced, 5 kg of pure nitrogen, 2 kg of diphosphorus pentachloride and 10.6 kg of potassium chloride are absorbed from the soil, and the absorption ratio of NPK is 1:0.4:2.1.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】