(1)脫硫效率高。
在脫硫塔內,氨水與煙氣充分接觸,屬于氣-液反應,瞬時完成,相同反應條件下,是反應速率最快的。
(2)同步多功能一體化。具有良好的脫硫和除塵功能,同時NO產生瞬間反應成氮氣和水完成脫硝功能。
(3)液氣比值小。
(4)系統阻力小
由于反應塔屬于噴射塔,塔本體阻力比填料塔阻力小,僅為填料塔阻力的1/3。經過阻力計算以及多次實際應用,測試證明塔本體阻力小于1000Pa。
(5)脫硫反應溫度區間可變范圍大
在40℃~180℃反應塔內,脫硫效率依然能夠達到95%以上。液體pH值控制在生成(NH4)2SO3范圍之內,進而降低了設備的腐蝕(已有反應塔使用10年以上的范例)。循環液的溫度越高,硫銨的溶解度越大,運行中一般控制在使循環液接近飽和結晶的濃度以下,使其在塔外結晶,有效避免堵塞現象。
(6)適應煙氣量和煙氣含硫量的變化
脫硫系統具有較高的可靠性及靈活性,當煙氣量發生變化時,控制系統自動及時進行脫硫劑濃度和量調節。當脫硫劑濃度增加時,系統采用獨特的結構設計有效防止氣體氨的逃逸。進而避免脫硫劑的浪費和可能造成的環境污染問題。
(7)適應煙氣中粉塵含量的變化
系統具有高效除塵功能,煙氣中粉塵在脫硫塔內得到有效捕集,同時,系統中設置了固液分離裝置,有效實現粉塵的回收再利用,也避免了系統內粉塵雜質沉淀和堵塞。
Desulfurization and denitration
SNDR ammonia denitration advantages out of stock
one, desulfurization denitration share a reaction tower;
two, to prevent the escape of ammonia, aerosol, submicron particles Rice noodles;
three, to adapt to the change of flue gas and flue gas sulfur;
four, to adapt to the change of dust content in flue gas;
five, do not need the catalytic device, investment, low running cost;
six, the system of low resistance, small footprint devices.
The characteristics of SNDR desulfurization and denitrification
(one) high desulfurization efficiency.
In the desulfurization tower, full contact ammonia water and flue gas, belonging to the gas - liquidreaction, instantaneous, the same reaction conditions, the reaction rate is the fastest.
(two) the synchronous multi functional integration. Has good desulfurization and dust removal function, and NO generates instant response to nitrogen and water complete denitrificationfunction.
(three) the liquid to gas ratio is small.
(four) small system resistance
Because the reaction tower belongs to spray tower, tower body resistance than the packed towerresistance is small, only packed tower resistance in 1/3. After the calculation of resistance and several practical applications, tests prove that the tower body resistance of less than 1000Pa.
(five) the desulfurization reaction temperature interval variable range
At 40 to 180 DEG C reaction tower, the desulfurization efficiency can achieve above 95%. Liquid pHvalue control in the generation of (NH4) 2SO3 range, and reduce the corrosion of the equipment(existing reaction tower more than 10 years of use case). The circulating liquid temperature is higher, the greater the solubility of ammonium sulfate, in the operation of the general control in thecirculating fluid saturated concentration below close to crystallization, the crystallization in the tower effectively avoid clogging.
(six) to adapt to the change of flue gas and flue gas sulfur
The desulfurization system has high reliability and flexibility, when the flue gas volume changes, the automatic control system for timely desulfurization agent concentration and the amount ofadjustment. When increasing the desulfurization agent concentration, the system adopts the unique structure design effectively prevent the escape of gas ammonia. In order to avoid the problem of environmental pollution of the waste desulfurizer and possible.
(seven) to adapt to the change of dust content in flue gas
The system has the function of efficient dust, dust in the smoke in the desulfurizing tower effectivelytrap, at the same time, the system set up the solid-liquid separation device, the effective realization of the dust recycling, but also to avoid the dust precipitation of impurities and blockage in the system.