Title: Indirect two-stage primary cooling technology of coke-oven gas
Application Number: 88103450 Application Date: 1988.06.04
Publication Number: 1030784 Publication Date: 1989.02.01
Approval Pub. Date: Granted Pub. Date: 1992.07.08
International Classifi-cation: C10K1/04,C10K1/08
Applicant(s) Name: Anyang Iron and Steel Corp., Henan Prov. Address:
Inventor(s) Name:
Attorney & Agent: CHU MINGCHAO
Abstract:
     This invention is involved with a primary cooling technology of coke-oven gas. According to the technology, the cooling process of coke-oven gas is divided into two stages, the first one makes use of vertical tube condenser and the second one makes use of horizontal tube condenser in which light tar is sprayed for dissolving naphthalene crystals into it. With the technology, the purifying efficiencies of tar and naphthalene are increased in the primary cooling process and the stop problem of primary cooler is eliminated, so the frequent shutdown for cleaning, which is a long-standing problem in primary cooling technology, is solved thoroughly. In addition, its running expense and energy dissipation are lower, so benefiting environmental protection and saving investment.
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