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Continuous operation method for desulfurization absorption column and temporary bleeder for flue gas

A desulfurization absorption tower, flue gas discharge technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problem that the flue gas desulfurization system cannot run continuously, achieve compact structure, recover economic losses, and easily disassemble The effect of pretending

Active Publication Date: 2010-09-08
国能朗新明环保科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for continuous operation of a desulfurization absorption tower and its flue gas temporary discharge device, to solve the problem that the flue gas desulfurization system cannot be continuously operated during the equipment transformation or maintenance of the flue gas desulfurization system of a limestone gypsum coal-fired boiler. running technical issues

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  • Continuous operation method for desulfurization absorption column and temporary bleeder for flue gas
  • Continuous operation method for desulfurization absorption column and temporary bleeder for flue gas
  • Continuous operation method for desulfurization absorption column and temporary bleeder for flue gas

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Embodiment Construction

[0029] Referring to the embodiment shown in Figures 1 and 2, this method of continuous operation of the desulfurization absorption tower, the top of the absorption tower is connected with a flange baffle 8, the flue gas discharge port is connected with the main chimney 10 by the exhaust pipe 9, and the absorption tower A limestone slurry spraying device 11 and a demisting device 12 are arranged on the inner top, and a raw smoke inlet 13 is opened on the wall of the absorption tower below the spraying device. The bottom of the absorption tower is a slurry pool 14, and the slurry pool is equipped with Device 15 and forced oxidation device 16, the bottom of slurry tank is connected with gypsum slurry discharge pipe 17, it is characterized in that the steps are as follows:

[0030] Step 1, opening at the top of the absorption tower. When there is no pressure, the flange baffle 8 on the top of the absorption tower can be removed. When there is pressure, the opening can be covered w...

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Abstract

The invention relates to a continuous operating method for a desulfurization absorption tower and a temporary discharge device thereof for flue gas is connected to the top of the absorption tower. A frustum shape transition section is connected on an original exhaust port, a lower cylindrical reinforcing ring is fixedly connected to the periphery of a joint between the original exhaust port and afrustum shape transition section, and the upper end of the frustum shape transition section is connected with a temporary chimney with a temporary top cap; an upper cylindrical reinforcing ring is fixedly connected to the periphery of a joint between the frustum shape transition section and the temporary chimney, when the flue gas can not be discharged through a main chimney, the flue gas after being desulfurized inside the absorption tower directly passes through the temporary chimney and is discharged into the atmosphere. As maintaining alternate facility of a system, the invention has simple structure and convenient maintenance, does not need power equipment, realizes energy saving and environmental protection and solves the technical problem that the flue gas desulfurization system can not be operated continuously when transforming or maintaining equipment of a lime stone-gypsum desulfurization system for coal boiler flue gas.

Description

(1) Technical field [0001] The invention relates to an operation method of a flue gas desulfurization system of a limestone gypsum coal-fired boiler and a discharge device for flue gas treated by a desulfurization tower. (2) Background technology [0002] The main facility of the traditional limestone gypsum coal-fired boiler flue gas desulfurization system is the absorption tower. The top of the absorption tower has a flange baffle. The flue gas discharge port is connected to the main chimney by the exhaust pipe. Slurry spraying device and demisting device. Below the spraying device, there is a raw smoke inlet on the wall of the absorption tower. The bottom of the absorption tower is a slurry pool. The slurry pool is equipped with a stirring device and a forced oxidation device. The bottom is connected with the gypsum slurry discharge pipe. The flue gas desulfurization system of the traditional limestone gypsum coal-fired boiler can only realize intermittent operation. , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/80
Inventor 陈志强田天马文静
Owner 国能朗新明环保科技有限公司
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