42results about How to "More precipitation" patented technology

The invention provides a full-automatic water-permeable brick production line and relates to the technical field of building material production. The full-automatic water-permeable brick production line is used for producing high-quality double-layer water-permeable bricks. The full-automatic water-permeable brick production line is characterized by comprising a feeding system and a forming system; the feeding system comprises a first conveyor and a second conveyor; the forming system comprises a rack, a stamping device, a distributing device and a die device; the distributing device comprises a distributing frame and a distributor, and the distributing frame is connected to the rack in a sliding mode in the vertical direction; the die device comprises a first die plate and a second die plate, the first die plate is connected to the rack in a sliding mode in the vertical direction, and the second die plate is connected to the upper side of the first die plate in a sliding mode in the horizontal direction. The full-automatic water-permeable brick production line has the advantages that it can be guaranteed that the thicknesses of all layers of the produced double-layer water-permeable bricks are uniform, it is guaranteed that the upper layers and the lower layers are clearly separated, therefore, the strength and the water-permeable performance of the double-layer water-permeable bricks are improved, the service life of the double-layer water-permeable bricks is prolonged, and the advantage that one machine achieves multiple purposes is achieved.

The invention discloses a condensing device, which comprises a condensing box, a condensing coil and a ventilation pipe, the condensing box includes a box body and a cover plate, the condensing coil is located in the condensing box, and the condensing pan The inside of the pipe is equipped with condensate for cooling the oil mist in the condensing box, the ventilation pipe is located in the condensing box, and is used for making the oil mist enter and discharge the condensing box, the The condensing device also includes a relief valve for discharging the condensed oil in the condensing tank, the relief valve is a floating ball stop valve, and the relief valve is opened when the buoyancy of the condensed oil on the floating ball is greater than the gravity . The condensing device provided by the invention can keep the temperature in the condensing box relatively low, accelerate the cooling of the oil mist, and enable the oil and gas to separate out more and faster. The reciprocal position of the vent line and the condensate line also allows the oil mist to contact the condensate line more. When the condensed oil accumulates to a certain height, it can be automatically discharged through the relief valve, which saves manpower and is more convenient.

The invention relates to the field of chemical industry, in particular to a method for recovering magnesium from ferronickel slag, which comprises the steps of immersing the ferronickel slag in concentrated sulfuric acid at atmospheric pressure, adding crystal seeds, and crystallizing out magnesium sulfate. The magnesium in the ferronickel slag is converted into magnesium sulfate for recovery of magnesium by adopting the all-wet process. The process is simple, easy to operate, requires low equipment, and has a high recovery rate of magnesium. Magnesium sulfate has a wide range of applications and high added value. It can improve the comprehensive utilization rate of nickel-iron slag.

The invention discloses a production technology for a ductile iron casting with high strength and high ductility. The production technology comprises the following steps: 1, adding 18-22 parts of steel scrap into an electric furnace for smelting, adding 58-62 parts of foundry returns, and finally, adding 0.5 part of a structure modifier and 18-22 parts of pig iron at the same time for smelting, so as to obtain raw molten iron; 2, adding a nodulizing agent into a nodulizing chamber of a nodulizing ladle, and coating the nodulizing agent with a nucleating agent, covering the nucleating agent with a silicon steel sheet, and finally, adding the structure modifier into the nodulizing ladle; 3, enabling the raw molten iron of which the temperature is controlled to be 1460-1480 DEG C in the electric furnace to react in the nodulizing ladle, so as to obtain final molten iron; 4, pouring the final molten iron for casting, and cooling, so as to obtain the ductile iron casting. According to the invention, the burning loss of crystal cores in molten iron can be prevented, the quality of molten iron is improved, and the ductility and strength can be greatly improved.

The invention discloses a flowing water tea or coffee brewing pot, which comprises a pot body, a pot cover body, and a tea powder cover. The pot cover body is provided with a control mechanism capable of closing or opening the water flow channel; The control and air intake system are independent of the air intake control; the container space is equipped with a first layer of filter screen; the container space is equipped with a dispersing water component that can disperse the water that enters the container space from the water flow channel; the tea outlet is located at the second Above a layer of filter net; the end of the conduit located in the kettle body is connected with a one-way valve that can only allow air to flow into the kettle body, so as to realize the automatic air intake of the air intake system. It can maintain the balance of the air pressure in the kettle body, no negative pressure will be generated, and the water will flow smoothly. It can avoid residual water remaining in the container space. The air intake system, water flow control structure, and tea outlet hole structure form a smooth water tea extraction system, which can effectively and accurately extract the excellent flavor components in tea or coffee, and avoid excessive precipitation of miscellaneous flavors and harmful substances.