At present, the phenomenon of "taking more but not more" and "only taking but not returning" in the utilization of geothermal resources in China is caused by the immature recharge technology. In the long run, geothermal resources will run out. It is necessary to develop long-term geothermal confined water recharge technology suitable for different geological and stratified conditions in large foundries, so as to realize the recycling of geothermal resources and benefit the society. : "Environmental protection and deodorization technology transformation" means that the polluted gas produced in the production process is purified with dilute oil in the benzene sulfide tower, and the gas discharged is not polluting the air and harmless to human body, so as to ensure the health of production workers. It is an environmental treatment project. Now it is necessary to solve the key technical problems in the transformation of environmental deodorization technology. With advanced production equipment and complete industrial chain, it is a high-tech photovoltaic enterprise with independent intellectual property rights. Main performance solar cells, battery modules, LED lighting research and development, production, sales, design, sales, installation of grid-connected, off-grid photovoltaic application system. Has passed ISO9001 international quality management system certification and CE, FCC, TUV, ROHS four international certification, and obtained four patents and one invention. The main equipment, production process and office are managed by computer network and automatically controlled. The annual production of 10,000 tons of methanol project was put into operation in January 2002. The company has strong economic, technical strength and good reputation, with more than 60 senior technical personnel. The main production post basically realizes the microcomputer control, three wastes discharge meets the standard. In my province to take the lead in the realization of steam from small casting, is "contract, keep promises" provincial units.