Discharge cooling device of red lead oxidizing furnace

Abstract

The invention discloses a discharge cooling device of a red lead oxidizing furnace. The device comprises a storage bin on the upper portion, an off fan in the middle and a discharge barrel on the lower portion. The off fan is driven by a motor and connected with the storage bin and the discharge barrel, and the discharge barrel, the off fan and the storage bin are vertically communicated into a whole. The top of the storage bin is provided with a feed inlet. The 1/3 position below the top of the storage bin is provided with an upper layer and a lower layer of criss-cross blocking rollers. The 2/3 position below the top of the storage bin is provided with an air inlet pipe. The portion, stretching into the bin, of the air inlet pipe is provided with a plurality of air outlets in the downward direction. The portion, outside the bin, of the air inlet pipe is connected with a main air inlet pipe. The discharge barrel is composed of a shell and an inner container. The caliber of the upper portion of the shell and the inner container are integrally connected to the off fan. One side of the top of the shell is provided with an air inlet hole, and the other side of the top of the shell is provided with an air outlet hole. The air outlet hole is led to a dust remover through a corrugated pipe. A strong magnetism iron bar is installed between the upper caliber and the lower caliber inside the inner container. Three hoppers are installed around the strong magnetism iron bar from top to bottom. A discharge outlet in the bottom of the inner container is provided with a brake valve.

Description

technical field [0001] The invention relates to the technical field of red lead processing equipment, in particular to a red lead oxidation furnace discharge cooling device. Background technique [0002] Currently in the production of red lead, the temperature in the red lead oxidation furnace is as high as 470°C, and the initial temperature of the oxidized red lead powder is also around 470°C. Most of the finished red lead products are packaged in ton or half-ton plastic container bags, which are damaged because they cannot withstand high temperatures, resulting in increased production costs. [0003] The traditional method is to put the oxidized red lead powder in a high-temperature resistant container in advance, and then put it into a packaging bag for storage management after cooling, which extends the process flow and leads to low production efficiency. Moreover, since the production process of red lead is to process lead ingots through melting, powder making, granula...

AI Technical Summary

Problems solved by technology

Most of the finished red lead products are packaged in ton or half-ton plastic container bags, which are damaged due to the inability to withstand high temperatures, resulting in increased production costs

[0003] The traditional method is to put the oxidized red lead powder into a high-temperature-resistant container in advance, and then put it into a packaging bag for storage management after cooling, which extends the process flow and leads to low production efficiency

Moreover, since the production process of red lead is to process lead ingots through melting, powder making, granulation, calcination and oxidation, etc., in the process of these processes, they are all completed under high temperature conditions in iron containers. lead) industry standard (HG / T4503-2013), the content of iron (ω%) is less than or equal to 0.0015, so this red lead production process is difficult to control the iron content, which often leads to the production of red lead products due to If the iron element content exceeds the standard and fails to pass, it will be returned to the furnace for re-oxidation, which will not only cause energy waste and increase production costs, but also may cause secondary environmental pollution and increase the probability of employees being exposed to occupational hazards

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