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Production method of chemical ≥×zinc oxide
Release time:
14 Sep,2020
In the industrial zinc oxide production process↔γ∑, zinc oxide is a commonl¶∏ σy used product in daily life.™÷ε
In the industrial zinc oxide production p&✔εrocess, zinc oxide i→↕♣s a commonly used product in daily li↕fe. The production process of zinc oxide uses zi>↑nc concentrate as ra÷©®w material, which is oxidized a↔©nd roasted at high temperatu♥απ✘re, and then reduced to zinc v"≥ apor by adding coal.
Flat kiln: The high-temperature oxidation roas"←ting process is converted from refract✘★δory materials in a cubic ki®&→ln, and the slag leaks from ↔©♠the bottom of the kiln. Materiαδal: zinc ore, zinc ash, zinc content requiremen✘≥Ω£ts in more than 30%. Out±<≈put value: the furnace body is about 6 squaλ &re meters, the daily output is about 2-3 tons, t♠α✔"he content is between 85% ★≤•☆and 99%, and the equipment investme£¥nt is about 400000 yuan. Advantages: burning ♣>₩with anthracite, good zinc₩♠× oxide color, low sulfur and chlorine contentεΩ. Raw materials are sufficie£♣♦€nt and products are wΩ↓®idely sold.
Rotary kiln: The high-temperat >ure baking process is carried¶☆σ out in a round iron cylinder, which has an ←βinclination of about 20 degreδ₽ es and a length of about 40 meters. Th> ✘•e slag is fed from the to£<p and discharged from the bottom. The vapor®₩s are collected and oxidized" β to zinc oxide. Material: Variou☆→♠s industrial zinc-containing wast∏δ e residues can usually be used, and the ♥↓<zinc content exceeds 16©>%. The daily output value of the round iron dr§um is about 10 tons, anβε$d the content is betwee$>n 55% and 92%. Equip↕₹®ment investment is about 600000. Advantages∏₽♠: low raw material requirements, high re≤ covery rate and high output value•&♥. The color of zinc oxide is yellow, some are g≥₽↑÷ray. High sulfur and chloride content. It isδσ±® usually used as a raw material ♣&for other occupations, and zin≠✔×c oxide for ceramic glazes is als←☆o used.
Smoker: Fine production process u₩§nknown. Material: Indus₹¥trial zinc-containing waste residu"☆e, usually with a zinc conten↔ε♥φt of more than 14%, a daily ±< output value of 20 tons, and a c↕" ontent of 45-80%. Equi<∞pment investment 1 millio÷±n. Advantages: high recovery rate and high output©★ value. Light zinc oxide, zinc oxσ•ide color is light yellow ÷¥¥¶or gray. If the producer is weΩ₹ll controlled, the sulfur chloride conten∏€®t is not high.
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