XNT/XST wet desulfurization and dust collector is a comprehensive device that integrates dust removal, desulfurization, self discharge or mechanical ash discharge, and automatic control of water replenishment. It has the advantages of convenient operation and management, circulation of solution left and right in the dust collector, low water consumption, and economical operation.
The XNT/XST wet desulfurization and dust collector adopts the new achievement of the Chinese Academy of Sciences, TO resin, for anti-corrosion treatment. The shell is constructed with metal or ceramic plates and a mixed structure of metal and ceramic to ensure its service life. It is comparable to the granite dust collector in terms of technology and economy.
XNT/XST wet desulfurization and dust collector is widely used in metallurgy, mining, power generation, heating and other industries. It has high dust removal and desulfurization effects on coal-fired boilers, rolling kilns and flat kilns in the ceramic industry, mechanical kilns and dryers in the cement industry, reverse flame kilns and roasting kilns for refractory materials, smelting furnaces, power plant boilers, especially for coal powder, liquefaction beds, industrial boilers, heating boilers and industrial kilns.
XNT/XST wet desulfurization and dust collector is a popular type of dust collector in wet impulse dust collectors, with a simple structure, low cost, and easy maintenance and management. This type has been in operation for fifteen years, fully proving its stable and reliable operation, and can be constructed with bricks or concrete according to local conditions, suitable for flue gas purification and desulfurization of smaller capacity boilers.
In order to improve the efficiency of dust removal and desulfurization, further technical transformation and design of the nozzle were carried out, and the two fluids were introduced into the cyclone mechanism to ensure the formation of film and coagulation, strengthen the bubbling effect, and further improve the dust removal and desulfurization efficiency. This product has achieved. XNT and XST wet cyclone enhanced agglomeration desulfurization dust removers are desulfurization equipment with high desulfurization efficiency, low pressure loss and dust removal capability. They are mainly composed of cylinder, spray device, sieve plate, dehydration and demisting device, overflow hole, cleaning hole, etc. Its working principle is that the flue gas containing smoke and sulfur oxides enters the cylinder through the flue, and the alkaline absorption liquid containing [OH -] ions is sprayed from the upper, middle, and lower parts of the follicular desulfurization and dust removal equipment through spiral nozzles, forming multiple rows of high-speed atomized water curtains in reverse with the flue gas, increasing the probability of collision between smoke and sulfur oxides and water, and fully utilizing the velocity of atomized droplets to create a high gas-liquid relative velocity to ensure the dust removal and desulfurization effect of the single dust collector.
Dust removal mechanism of XNT/XST wet desulfurization and dust collector:
The smoke enters the nozzle and impacts the water surface, while the coarse dust particles are captured and settled by the water due to inertial collision, which is the impact stage; The nozzle gap swirls and sprays at high speed, stimulating a large number of bubbles and water spray swirling along the cylinder, strengthening the filmization and condensation of smoke and dust. Bubbles continue to occur and break, forming a strong swirling disturbance. Smoke and dust are constantly washed and absorbed at the edge of the cylinder to settle, forming a foam action stage; The airflow passes through the foam layer and enters the aroused spray and fog drop area, which is washed by the shower, and the smoke is further absorbed and purified, that is, the action of the shower is interrupted; When the smoke containing droplets rises to the conical dehydration plate, it is intercepted and flows down along the wall, serving as the fourth stage of both dehydration and dust removal. The entire process of dust removal and desulfurization is unified, with sufficient water absorbent for SO2 gas, and the contact between bubbles and water mist completes the desulfurization effect.
Design principles of XNT/XST wet desulfurization and dust collector:
1. Reliable, no forced shutdown due to ash discharge machine failure, resulting in production losses.
2. Can be used in conjunction with desulfurization.
3. The maintenance cycle is long and suitable for the maintenance period of the boiler unit.
4. Economically energy-efficient, with low water and electricity consumption.
model | Boiler capacity t/h | ||||||
2 | 4 | 6 | 8 | 10 | 15 | 20 | |
Airflow range m3/h |
4600-6000 | 9000-11000 | 10000-13500 | 16000-22000 | 24000-28000 | 33000-37500 | 46000-54000 |
Total dust removal efficiency% | 95-98 | ||||||
Desulfurization efficiency% | 75-80 | ||||||
Resistance Pa | 600-800 | ||||||
Ringman blackness | <1 | ||||||
Segmented grain size uM | <1 | ||||||
Water consumption I/m3 | 0.10-0.30 |
Technical performance of XNT wet desulfurization and dust collector:
model | Smoke volume m3/h | Dust removal efficiency% | Smoke emission concentration (mg/Nm3) |
Ringman blackness (Level) |
Desulfurization rate (%) | Resistance (Pa) |
XNT-2 | 4500~6000 | 95-99 | <100 | <1 | 75-85 | 1000-1500 |
XNT-4 | 9000-11000 | |||||
XNT-6 | 15000-16000 | |||||
XNT-8 | 19000-21000 | |||||
XNT-10 | 23000-26000 | |||||
XNT-15 | 34500-39000 | |||||
XNT-20 | 46000-52000 | |||||
XNT-35 | 85000-92000 | |||||
XNT-40 | 92000-115000 | |||||
XNT-65 | 150000-190000 |
Zhejiang XNT/XST wet desulfurization and dust collector Guizhou XNT/XST wet desulfurization and dust collector