A lime digestion pulping device for limestone-gypsum wet desulfurization
A wet desulfurization, limestone technology, applied in the direction of separation methods, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as complex structure, high energy consumption, and impact on slurry supply, and achieve wide applicability and simple structure Effect
Active Publication Date: 2016-02-24
JIANGMEN TONGLI ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology
The invention patent with application number 201220111645.9 "A slurry preparation device for limestone-gypsum wet desulfurization" provides a slurry preparation device for limestone-gypsum wet desulfurization. The hard slag is separated to make an effective lime desulfurizer; however, the device has a complex structure, high energy consumption, and multiple screens are prone to clogging, which affects the supply of slurry
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[0023] Please also see figure 1 and figure 2 ,in, figure 1 It is a structural schematic diagram of a lime digestion and pulping device for limestone-gypsum wet desulfurization of the present invention, figure 2 It is a partial cross-sectional schematic diagram of a lime digestion and pulping device for limestone-gypsum wet desulfurization of the present invention. A lime digestion and pulping device for limestone-gypsum wet desulfurization of the present invention includes a digestion tank 10, an agitator 20, a slag removal machine 30 and a fixing mechanism; the digestion tank 10 is a cylindrical tank with an upper opening body, and its bottom surface is an inclined plane 11, and the included angle between it and the horizontal plane is 15°~30°; the tank wall of the digester tank 10 is located above the bottom end of the inclined plane 11 and is provided with a rectangular slagging outlet 12; the digester tank 10 The tank wall is located above the top of the inclined plan...
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The invention discloses a lime digestive pulping device for limestone-gypsum wet desulphurization. The lime digestive pulping device comprises a digestion tank, a stirrer, a slag extractor and a fixing mechanism, wherein the digestion tank is a cylindrical tank body with an opening in the upper part; the bottom surface of the digestion tank is an inclined plane; a rectangular slag discharge opening is formed in the position, above the bottom end of the inclined plane, of the wall of the digestion tank; a pulp discharge opening is formed in the position, close to the opening of the digestion tank and above the top end of the inclined plane, of the wall of the digestion tank; the stirrer comprises a stirring motor and a stirring paddle; the stirring paddle comprises a connecting rod and a plurality of blades; the plurality of blades are arranged on the outer periphery of one end of the connecting rod and extend in a radial form; the stirring motor controls the connecting rod to rotate, so as to drive the blades to rotate around the connecting rod; and the slag extractor penetrates through the slag discharge opening and discharges hard slag at the bottom of the digestion tank out of the digestion tank. The lime digestive pulping device disclosed by the invention is simple in structure and wide in applicability.
Description
technical field [0001] The invention relates to a lime desulfurizer preparation device, in particular to a lime digestion and pulping device used in a coal-fired boiler flue gas limestone / lime-gypsum wet desulfurization system. Background technique [0002] Lime is the product of limestone roasted at high temperature, but limestone is the most widely used desulfurizer, because limestone is widely distributed, abundant in reserves, can be obtained locally and cheap, and is suitable for industrial procurement and application. From the analysis of the reaction rate, lime is easier to react with SO2 than limestone, has higher reactivity, and has higher desulfurization efficiency. However, lime is much more expensive than limestone and needs to be equipped with a lime digestion device. In addition, quicklime has strong water absorption , It is more difficult to store than limestone. Lime, also known as quicklime, its main component is CaO, mainly in block and powder form, mixed ...
Claims
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IPC IPC(8): B01J19/18B01D53/80B01D53/50
CPCB01D53/50B01D53/501B01D53/80B01D2257/302B01J19/0053B01J19/0066B01J19/18B01J2219/185B01J2219/1943
Inventor 温超强李宇翔刘洪波胡满深周景堂刘海峰陈嘉伟
Owner JIANGMEN TONGLI ENVIRONMENTAL PROTECTION TECH