7results about How to "Reduce supplementation" patented technology

This utility model relates to the field of dust collector technology, and in particular to a water curtain dust collector, comprising a tower body, a Venturi tube connected to the lower side wall of the tower body, a screen installed on the inner side of the lower part of the tower body, several baffles installed below the screen, and a water collection tank connected to the lower end of the tower body. Both the screen and the baffles are hollow. A sedimentation tank is connected to the water collection tank. The upper outer wall of the sedimentation tank is connected to the screen and baffles via a water supply and heating pipeline. The outlets of the screen and baffles are connected to the water collection tank via a return water pipeline. This water curtain dust collector, by using a hollow screen and baffles and constructing a water circulation heating system using a water collection tank, sedimentation tank, water supply and heating pipeline, and return water pipeline, achieves several advantages. Firstly, the heated circulating water flows within the screen and baffles, increasing their surface temperature and effectively preventing the solidification and accumulation of sticky particles due to temperature reduction, thus solving the problem of flow channel blockage and extending the equipment maintenance cycle.

The utility model discloses a kind of water-saving and energy-saving cleaning devices for aluminium processing color-coated production line aluminium material, including cleaning tank, the cleaning tank is divided into caustic cleaning tank and water washing tank sequentially arranged along track moving mode, cleaning tank includes liquid storage tank, the side of the liquid storage tank is equipped with deionized water pipeline, the bottom of liquid storage tank is equipped with water outlet pipe, the water outlet of water outlet pipe is equipped with tank liquid pump, the liquid outlet of tank liquid pump is equipped with conveying pipe, the end of conveying pipe close to tank liquid pump is equipped with heat exchanger group. The water-saving and energy-saving cleaning device for aluminium processing color-coated production line aluminium material, on the basis of not increasing power equipment, tank liquid of water washing tank is supplemented to caustic cleaning tank, can reduce water washing tank tank liquid overflow waste water discharge amount, while caustic cleaning tank reduces the supplement of deionized water due to water washing tank supplement water amount, and the temperature of supplement tank liquid is higher, also can reduce caustic tank tank liquid heating use heat, to reduce production cost.

This invention relates to the field of resource recycling technology, specifically disclosing a system and method for extracting and recovering metals from etching waste liquid. The extractant combination of this invention can minimize the loss of etching aids, preserve the original composition of the etching liquid, and allow the etching liquid to be completely reused after reducing copper, molybdenum, and other metal ions. The extractant of this invention has a long effective life cycle of extraction-back-extraction, minimal loss of extractant aids in the extraction-back-extraction cycle, and no emulsification / flocculation of the extract phase during the extraction process. The extraction rate of copper and molybdenum in the etching liquid is high. By using a specific three-phase extractant combination, more than 98% of copper and molybdenum in the waste liquid can be recovered. The copper extraction process has a good retention effect on nitrogen azole etching aids, such as 5-aminotetrazole, thereby forming a closed loop in the extraction-back-extraction cycle of the etching liquid, reducing material input and pollution.

The utility model discloses a long-distance automatic SF gas supplementing device which comprises a device body, a control box is installed on the front face of the device body, a touch display screen is arranged on the surface of the top end of the control box, a heating time knob and an emergency stop button are arranged at the bottom end of the touch display screen, and control buttons are arranged at the bottom ends of the heating time knob and the emergency stop button. The control buttons correspond to the automatic button, the air supply button, the stop button, the pressure relief button, the weighing button and the power button, a transparent protective door is hinged to the surface of the device body on one side of the touch display screen, and a monitoring pressure gauge is installed on the inner side of the device body at the bottom end of the transparent protective door. Through the matching arrangement of a heating time knob and a heating jacket, a gas cylinder main body shell is heated, the influence of the external environment on a steel cylinder is reduced, SF6 gas is supplemented, the gas supplementing efficiency is improved, through the arrangement of a U-shaped limiting clamping block and a bandage, the gas cylinder main body is conveniently limited and fixed, and through the arrangement of an inclined plane supporting plate, the gas cylinder main body is conveniently mounted into the inner side of a steel cylinder mounting bin.

The application discloses a three-net roller washing box, which comprises a box body, two bottom water tanks are arranged in the box body, an inlet cloth guide roller, a middle net roller, a front widthening roller, a middle net roller tension roller, a front lower layer large net roller, an upper layer large net roller, a rear lower layer large net roller, a net roller rear tension roller, a rear widthening roller, a sucking disc, a front S roller, a rear S roller and an S roller rear tension roller are sequentially arranged in the box body along a fabric advancing direction, and the front lower layer large net roller and the rear lower layer large net roller are arranged in the two bottom water tanks respectively. The application has the following advantages and effects: through a multi-cycle soaking and washing mode, the net rollers are arranged in a triangular shape, the effect of effectively removing lint on the front and back surfaces and quickly making oil stains fall off is achieved.

The present application belongs to the technical field of wet-process phosphoric acid and resource comprehensive utilization, and discloses a method for preparing phosphoric acid and calcium chloride by decomposing medium and low grade phosphate rock with by-product hydrochloric acid. (1) The phosphate rock is mixed with a hydrochloric acid solution, sodium chloride is added, and after reaction, solid-liquid separation is performed to obtain an acidolysis solution; (2) the acidolysis solution is separated and treated to obtain a phosphoric acid solution and a calcium chloride solution; (3) the calcium chloride solution is neutralized and purified by using a stepwise pH value control method; (4) the purified calcium chloride solution is concentrated, sodium chloride is precipitated and separated due to solubility difference, and is returned to step (1) for recycling, and the concentration, crystallization and drying are continuously performed to obtain a calcium chloride product. The present application effectively solves the problems of difficult solid-liquid separation and low value of by-product calcium chloride caused by the generation of silica gel in the acidolysis process of medium and low grade phosphate rock, the decomposition rate of the phosphate rock is more than 98%, high quality phosphoric acid is obtained, the full utilization of by-products is realized, and the production cost and energy consumption are significantly reduced.

The invention relates to a separation system, a separation method and a phase separation device for a mixture containing pyridine or derivatives thereof, and the separation method comprises the following steps: S1, extracting a mixture material flow containing pyridine or derivatives thereof in an extraction tower by adopting an extraction agent to obtain an extraction liquid material flow and a raffinate material flow; s2, rectifying the extraction liquid material flow in an extraction agent recovery tower, and respectively obtaining a product material flow and a first gas phase material flow at a tower kettle and a tower top; performing condensation and phase splitting on the first gas phase material flow to respectively obtain a first oil phase material flow and a first water phase material flow; the first oil phase material flow flows back to the extraction agent recovery tower. According to the method, the pyridine or the derivative thereof in the mixture is recovered by virtue of an extraction means, so that the energy consumption can be reduced, the pollutant content in the discharged material flow is lower, the discharged material flow reaches the discharge standard, and the recovered material can be used as a medicine raw material to generate additional value.