Recycling method of alkaline pulping by-product
A technology of alkaline pulping and by-products, which is applied in the regeneration of pulping liquid, the recovery of pulp by-products, textiles and papermaking, etc. It can solve the problems of low lignin utilization value, large fuel consumption, high operating costs, etc., and achieve improvement Effects of utilization rate and utilization value, reduction of carbon emissions, and exemption from operating costs
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Embodiment 1
[0014] Example 1: Build several pools according to the amount of black liquor in the pulp mill. The bottom of each pool is made into an inverted hollow cone with the cone top at the bottom. The cone top of the inverted cone is connected to the drain pipe, and the drain pipe is provided with a valve to control the discharge of the liquid in the pool. In addition, a small-diameter connecting pipe network is arranged in the pool, and many small holes are drilled in the pipe wall around each section of the pipe for exhaust gas. The pipe network is connected with the main pipe that transports flue gas. Control airflow. First, the black liquor is discharged into the first pool through the pipeline for processing. On the other hand, the flue gas in the chimney of the combustion furnace is desulfurized and denitrified, that is, the sulfur oxides and nitrogen oxides in the flue gas are removed, and then the flue gas that has been desulfurized and denitrified is extracted The equipmen...
Embodiment 2
[0015] Example 2: Build several pools according to the amount of black liquor in the pulp mill. The bottom of each pool is made into an inverted hollow cone with the cone top at the bottom. The cone top of the inverted cone is connected to the drain pipe, and the drain pipe is provided with a valve to control the discharge of the liquid in the pool. In addition, a small-diameter connecting pipe network is arranged in the pool, and many small holes are drilled in the pipe wall around each section of the pipe for exhaust gas. The pipe network is connected with the main pipe that transports flue gas. Control airflow. First, the black liquor is discharged into the first pool through the pipeline for processing. On the other hand, the flue gas in the chimney of the combustion furnace is desulfurized and denitrified, that is, the sulfur oxides and nitrogen oxides in the flue gas are removed, and then the flue gas that has been desulfurized and denitrified is extracted The equipmen...
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