(1)脱硫效率高。
在脱硫塔内,氨水与烟气充分接触,属于气-液反应,瞬时完成,相同反应条件下,是反应速率最快的。
(2)同步多功能一体化。具有良好的脱硫和除尘功能,同时NO产生瞬间反应成氮气和水完成脱硝功能。
(3)液气比值小。
(4)系统阻力小
由于反应塔属于喷射塔,塔本体阻力比填料塔阻力小,仅为填料塔阻力的1/3。经过阻力计算以及多次实际应用,测试证明塔本体阻力小于1000Pa。
(5)脱硫反应温度区间可变范围大
在40℃~180℃反应塔内,脱硫效率依然能够达到95%以上。液体pH值控制在生成(NH4)2SO3范围之内,进而降低了设备的腐蚀(已有反应塔使用10年以上的范例)。循环液的温度越高,硫铵的溶解度越大,运行中一般控制在使循环液接近饱和结晶的浓度以下,使其在塔外结晶,有效避免堵塞现象。
(6)适应烟气量和烟气含硫量的变化
脱硫系统具有较高的可靠性及灵活性,当烟气量发生变化时,控制系统自动及时进行脱硫剂浓度和量调节。当脱硫剂浓度增加时,系统采用独特的结构设计有效防止气体氨的逃逸。进而避免脱硫剂的浪费和可能造成的环境污染问题。
(7)适应烟气中粉尘含量的变化
系统具有高效除尘功能,烟气中粉尘在脱硫塔内得到有效捕集,同时,系统中设置了固液分离装置,有效实现粉尘的回收再利用,也避免了系统内粉尘杂质沉淀和堵塞。
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.