Antioxidant gel foam for inhibiting spontaneous combustion of coal

• Main Authors: GAO YUKUN, QUAN SAINAN, JI YUCHENG, HUANG ZHI'AN, ZHANG YINGHUA
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides antioxidant gel foam for inhibiting spontaneous combustion of coal, and belongs to the technical field of gel foam. The foam comprises a gelatinizing agent, a cross-linking agent, a foaming agent, a foam stabilizer, an antioxidant inhibitor and distilled water, sodium polyacrylate is selected as a gelatinizing agent, konjac glucomannan is selected as a cross-linking agent, lauryl sodium sulfate and sodium alpha-olefin sulfonate are selected as foaming agents, modified silicone resin polyether microemulsion is selected as a foam stabilizer and montmorillonite and tert-butylhydroquinone are selected as antioxidant inhibitors, and the antioxidant gel foam is prepared. The antioxidant gel foam has the advantages of being stable in structure, large in diffusion range, good in water retention capacity, high in thermal stability, capable of effectively isolating coal oxygen contact and the like of a gel foam material; the anti-oxidation component has good anti-oxidationperformance, so that the