6results about How to "Guaranteed reaction efficiency" patented technology

The utility model discloses a kind of polysilicon hydrogenation device silicon powder high-efficiency recovery system, including fluidized bed reactor, further including inner cyclone separator, double cyclone separator, metal filter and silicon powder collecting tank;Multiple inner cyclone separators are fixedly arranged in the top inside fluidized bed reactor by fixed support;The air outlet of multiple inner cyclone separators is communicated with the air inlet of gas collector, and the air outlet of gas collector is communicated with the reaction gas outlet in the top of fluidized bed reactor;The reaction gas outlet of fluidized bed reactor is communicated with the air inlet of double cyclone separator by pipeline, and the air outlet of double cyclone separator is communicated with the air inlet of metal filter by pipeline.The advantage is that: by three-stage gradient separation, silicon powder recovery efficiency is greatly improved;Silicon powder separated by double cyclone separator can be returned to fluidized bed reactor dense phase region through return chute pipe, realize raw material recycling, reduce silicon powder waste.

The utility model discloses a tail gas purification treatment device of biological oxidation gold extraction relates to tail gas purification treatment device technical field, the utility model discloses a main frame mechanism, the main frame mechanism includes the purification tower, the left side fixedly connected with the air inlet pipeline of purification tower outer surface, the top fixedly connected with the exhaust pipe of purification tower, the bottom fixedly connected with the deflector of purification tower inside, the utility model discloses a purification subassembly is set up, specifically is through setting up multilayer carbon filling layer, and carbon filling layer adopts the mixture of active carbon and modified molecular sieve, can increase the contact area and contact time of tail gas and absorption liquid and adsorbent, improve the removal efficiency to harmful gas, simultaneously, sodium hydroxide and hydrogen peroxide in absorption liquid can carry out chemical reaction and oxidation decomposition to different properties harmful gas, thereby realize the efficient purification to multiple harmful gas, effectively reduced the emission concentration of harmful substance in tail gas, and the environmental protection emission standard has been greatly improved.

This invention belongs to the field of organic chemistry, specifically relating to a method for preparing and applying a class of bis(trichloromethyl)S-triazine compounds. The method provides that benzonitrile compounds are used as starting materials, undergoing a cyclotrimerization reaction with trichloroacetonitrile, followed by a Knevengel reaction with benzaldehyde compounds to obtain bis(trichloromethyl)S-triazine compounds. The preparation method of this invention is simple, with easily controllable temperature and few impurities throughout the process; it significantly reduces costs and greatly improves purity and yield, achieving purities >99% and yields >70%; the products have good solubility; more importantly, almost all compounds exhibit more active inhibitory effects on HepG2 human liver cancer cells than the control cisplatin; making these compounds not only suitable as photochemical agents in the chemical industry but also beneficial for screening tumor therapeutic drugs.

The utility model relates to sewage treatment technical field, concretely is a sewage treatment integrated intelligent circulation system, including ground, the ground top is fixed with anaerobic tank, the anaerobic tank right -hand member is fixed with oxygen -deficient pool, the oxygen -deficient pool right -hand member is equipped with the aerobic tank, the aerobic tank right -hand member is equipped with the electric catalysis advanced oxidation ware, the anaerobic tank the oxygen -deficient pool the aerobic tank with the electric catalysis advanced oxidation ware right -hand member all are equipped with the filter box, each the filter box right -hand member is fixed with the delivery pipe, the anaerobic tank the oxygen -deficient pool with the aerobic tank top all are equipped with the sealing plate, the anaerobic tank the oxygen -deficient pool with the aerobic tank inside all are equipped with stirring and sensor network, the utility model discloses through the synergies of multistage biochemical treatment and electric catalysis advanced oxidation, has improved the removal efficiency of each kind of pollutant in hospital sewage greatly, and the system avoids the disinfection by -product produced by chemical disinfection method, reduces the secondary pollution to the environment.

This invention discloses a direct reduction ironmaking method, relating to the field of iron and steel metallurgy. The direct reduction ironmaking method includes the following steps: splitting a first gas discharged from the preheating reduction zone into a first portion and a second portion; removing the inert gas from the first portion and mixing it with the second portion to form a second gas; heating the second gas to a first preset temperature and then inputting it into the high-temperature reduction zone, so that the second gas reacts with the iron-containing raw material and flows upward to the preheating reduction zone. This application can solve the problems of inert gas enrichment, unstable atmosphere, and low energy utilization in existing hydrogen-based reduction ironmaking processes.

This application belongs to the field of chemical equipment technology and discloses a double-lined reactor, including a reactor body and a venturi tube. The reactor body includes an outer steel component, a PTFE layer, and a perforated plate. The outer steel component, PTFE layer, and perforated plate are arranged in parallel. The perforated plate is fixedly connected to the inner side of the outer steel component, and the PTFE layer is fixedly connected to the side of the perforated plate away from the outer steel component. A sandwich space is formed between the PTFE layer and the outer steel component, and the PTFE layer is the reaction space for the materials. The feed section and discharge section of the venturi tube are respectively connected to the reaction space, and the throat of the venturi tube is connected to the sandwich space. The reactor using a double-lined structure instead of a Hastelloy reactor and introducing a venturi tube can, on the one hand, utilize the jetting effect of the venturi tube to ensure thorough mixing of materials, which is beneficial to improving the reaction effect; on the other hand, the negative pressure generated by the venturi tube during operation can extract the gas that has permeated into the sandwich space, reducing the possibility of bulging inside the reactor and increasing the service life of the reactor, without the need for an additional vacuum system.