30results about How to "Facilitate recycling" patented technology

The invention discloses a method for efficiently preheating coke oven gas. The coke oven gas is subjected to preheating treatment by flue gas or waste gas with the temperature of above 1,150 DEG C, and the flue gas or the waste gas and the coke oven gas are subjected to countercurrent heat exchange, wherein the preheating treatment comprises convection preheating treatment and radiation preheating treatment which are performed sequentially; after the convection preheating treatment, the coke oven gas is preheated to 500 to 600 DEG C; and after the radiation preheating treatment the coke oven gas is continuously preheated to 800 to 950 DEG C. The coke oven gas is preheated by completely utilizing the sensible heat of high-temperature flue gas or tail gas, so that the preheating time is short, the preheating temperature is high, the automatic control can be realized basically, the heat efficiency is high, and operation safety and reliability are achieved. High-temperature decomposition of hydrocarbon in the coke oven gas and carbon deposition can be effectively prevented by adding a trace amount of a carbon deposition inhibitor and a decarbonizer, and the application range is wide.

The invention relates to an amorphous boron powder preparation device. The device comprises a sealing body, a reactor (2), a self-propagating reaction initiation assembly, an air inflation valve (7),an air release valve (8), an air guide pipe (9) and a heating body (12); the reactor (2) is used for containing reaction raw materials; the sealing body is used for placing the reactor (2), and the reaction raw materials in the reactor are subjected to heat insulation from the exterior and located in a sealing space in a reaction process; the self-propagating reaction initiation assembly is used for initiating a self-propagating reaction of the reaction raw materials; two air through holes are formed in the sealing body, the air guide pipe (9) penetrates through the air through holes and is connected with the interior and the exterior of the sealing body, and the air inflation valve (7) and the air release valve (8) are arranged on the air guide pipe (9) of the exterior of the sealing body; the heating body (12) is used for heating the sealing body, and accordingly the reaction raw materials in the reactor (2) are pre-heated.

The invention discloses a reactor for sewage treatment and phosphorus recovery, which comprises an anoxic biological filter tank, an aerobic aeration biological filter tank, an anaerobic membrane biological reaction tank, a phosphorus salt flocculation tank, a phosphorus salt precipitation tank and an aerobic membrane biological reaction tank. The invention also discloses a method for recovering phosphorus by using the reactor for sewage treatment and phosphorus recovery. The reactor implements high-efficiency recovery of phosphorus in the sewage treatment process, the prepositive secondary BAF (biological filter tank) device has a prepurification function on sewage before phosphorus recovery, thereby enhancing the phosphorus recovery purity; the secondary MBR (membrane biological reaction tank / device) is beneficial to recovering high-phosphorus water; and the investment of the internal circulation phosphorus recovery system is less than that of any other phosphorus removal method.

The invention discloses a slag granulation steam recovering device, which comprises a steam exhaust chimney, wherein the bottom end of the steam exhaust chimney is provided with a water discharging structure; a steam guide pipe communicated with the inner cavity of the steam exhaust chimney is transversely above the bottom end face of the steam exhaust chimney; a horizontal flow guide pipe I is transversely arranged above the steam guide pipe; the outlet end of the horizontal flow guide pipe I is connected with a vertical flow guide pipe; a spray washing device is arranged in a pipe at the connected part of the horizontal flow guide pipe and the vertical flow guide pipe; the lower end of the vertical flow guide pipe is closed to form a water collecting pit; a horizontal flow guide pipe IIis arranged above the water collecting pit; a front steam and water separator is arranged in the middle of the horizontal flow guide pipe II, and the outlet end of the horizontal flow guide pipe II is connected to a mixer; and a rear steam and water separator, a fan and a steam exhaust air cylinder are arranged in the mixer in turn from bottom up, an air inlet window is formed on the wall of the mixer below the rear steam and water separator. The structure of the slag granulation steam recovering device is reasonably designed, the matching effect is desirable and the separation effect is excellent.

The invention provides an adsorbing agent for adsorbing phosphate groups and an adsorption method; the adsorption method comprises: ZnAl lamellar bimetal hydroxide is provided and is contacted with water environment containing the phosphate groups; the ZnAl lamellar bimetal hydroxide is NO3-type ZnAl lamellar bimetal hydroxide or CO32-type ZnAl lamellar bimetal hydroxide which is roasted. A test result shows that the NO3-type ZnAl lamellar bimetal hydroxide or the CO32-type ZnAl lamellar bimetal hydroxide which is roasted has high selectivity for the adsorption of the phosphate groups, thereby being beneficial to extracting and recovering phosphor from the water environment.

Long-tunnel air-source cooling equipment is mainly composed of the two parts of a water way system and a control system. The water way system is mainly composed of the three parts of a cold water supply subsystem arranged on the ground, an air source heat pump installed in a long tunnel and a hot water utilization subsystem arranged on the ground, and the cold water supply subsystem, the air source heat pump and the hot water utilization subsystem are sequentially connected to form a circulating water way through two water supply pipelines; and a controller, a water suction pump, a flow control valve, a temperature sensor, a check valve and a pressure gage are mainly connected through an electrifying circuit to form the control system, wherein the controller is arranged on the ground, and the water suction pump, the flow control valve, the temperature sensor, the check valve and the pressure gage are installed on water supply pipelines. According to the long-tunnel air-source cooling equipment, construction is simple, energy consumption is low, safety and high efficiency are achieved, and the practicability is high.