70results about How to "Wide temperature adaptability" patented technology

The invention relates to a seal carrier roller, comprising a roller body and a central shaft, wherein the roller body is made from an ultra-high molecular weight polyethylene material, inner rings of two ends of the roller body are respectively provided with a bearing block, a bearing is arranged between a central shaft and each of two bearing blocks, the outer sides of the two bearings are respectively provided with a set of seal devices arranged between the roller body and the central shaft. The seal carrier roller disclosed by the invention has a reasonable design and a simple structure and provides an ultra-high molecular weight polyethylene Japanese type seal carrier roller for a material conveyor; in addition, the seal carrier roller has the advantages of low raw material consumption, low cost, simple and convenient manufacturing process, abrasion resistance, high rotation speed, low resistance, self lubricity, shock strength, fire resistance, inadhesion, excellent resistances to static electricity, aging, corrosion and the like, and does not generate waste water, waste gas and waste materials during production and use so as to belong to energy-saving environment-friendly products.

The invention relates to a modified organic silicon polymer paint for preventing a power transmission wire from covering ice and a preparing method thereof. The paint comprises the following components in parts by weight: 40-50 parts of functional polymer, 45-55 parts of functional vacuum cenospheres wrapped by fluorinated siloxane, 1-2 parts of functional auxiliary, 0.1-0.3 part of defoaming agent and 2-5 parts of polytetrafluoroethene emulsion wax. Compared with the prior art, the invention has the advantages of low surface tension, high hydrophobicity, high self-lubricity, low bonding property to ice, proper heat absorption, insulating and storage property, excellent adhesion to a cable, excellent outdoor use durability, refractory, environment-friendly and non-toxic film forming matter and the like.

The invention discloses a strain of Ochrobactrum intermedium B522 that synergistically degrades COD and ammonia nitrogen in livestock and poultry breeding sewage and its application. The bacterium has been preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee on April 29, 2019 , referred to as CGMCC, the address is No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the deposit number is CGMCC No.17652. The strain has a wide range of suitable growth temperatures, and can proliferate well between 20-45°C (OD 600 >1.0). Its optimum growth pH is between 6.0‑8.5 (OD 600 >1.0). The aquaculture wastewater collected from actual pig farms in the laboratory had initial COD, ammonia nitrogen, and total phosphorus contents of 7600 mg / L, 204 mg / L, and 19.75 mg / L, respectively. After 3 days of aerobic treatment with strain B522, the experimental results showed that the The bacteria achieved a large number of proliferation in the first 24 hours, and the proliferation speed of the bacteria slowed down within 24-72 hours until reaching the maximum concentration of bacteria. In this process, the COD degradation rate in the aquaculture wastewater was 66%, the ammonia nitrogen degradation rate was 84%, and the total phosphorus removal rate was 40%. Therefore, the strain has a good degradation effect on COD, ammonia nitrogen and total phosphorus, so it has great potential in the microbial treatment of livestock and poultry wastewater, and has broad application prospects.