Process and processing system for co-processing shellfish waste with cement clinker production line

Abstract

The invention discloses a high-efficiency process for co-processing shellfish wastes with a cement clinker production line. The process comprises the steps: placing collected shells in a piling shed, rinsing cleanly with water, sending the air-dried shells to a dryer, introducing dedusted hot wind of a kiln tail of a rotary kiln in the cement clinker production line into the dryer, drying the shells, directly discharging emptily deodorization-treated tail gas discharged by the dryer, sending the dried shells into a crusher, crushing, sending the crushed shell broken material as a cement clinker raw material to the cement clinker production line for producing cement clinker or being directly used as a cement raw material. Not only is the shellfish waste utilized, but also energy sources are saved. The invention also discloses a system suitable for the process.

Description

technical field [0001] The invention relates to the treatment of shellfish waste, in particular to a process and a treatment system for co-processing shellfish waste in a cement clinker production line. Background technique [0002] There are many lakes and vast seas in China, and there are rich shellfish resources. Most of the shellfish resources are used for food. The domestic use of shells is limited to the edible part, and the use of shells that accounts for most of the quality of shells is seldom used. In recent years, with the With the development of related industries, more and more shells are produced, but they are rarely used. A large number of shells are mainly discarded and landfilled. From 1990 to 2010, the accumulated amount of discarded shells exceeded 100 million tons, occupying a large amount of landfill. Land resources have caused environmental pollution, which has become an urgent environmental problem in coastal areas. [0003] There are many kinds of she...

AI Technical Summary

Problems solved by technology

[0004] 1. Shells are aquatic organisms, and the content of chloride ions and alkali in shells is significantly higher than that of limestone, which may affect some applications of replacing limestone.

[0005] 2. There is rotten organic matter on the discarded shells, which will emit a bad smell and cause a certain impact on the environment

[0006] 3. Shells are mostly flaky, which is quite different from limestone, which is mostly blocky. If the crushing and processing methods of limestone are directly applied, it is easy to cause material blocking problems

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