56results about How to "Save metal resources" patented technology

The invention discloses a zinc leaching slag treatment device and a zinc leaching slag treatment process using the same. The zinc leaching slag treatment device comprises a primary side-blown converter and a secondary side-blown converter, wherein the primary side-blown converter is used for smelting zinc leaching slag, and provided with a first furnace body and a first side-blown spray gun for blowing oxygen-containing gas and fuel into the first furnace body; and the secondary side-blown converter is used for smelting molten slag generated by the primary side-blown converter, and provided with a second furnace body connected with the first furnace body through a hot slag chute, and a second side-blown spray gun for blowing oxygen-containing gas and fuel into the second furnace body. The zinc leaching slag treatment device and the zinc leaching slag treatment process using the same have the advantages of low energy consumption, low production cost and high recovery rate of zinc, lead, silver and dissipated metals, and can improve the operating environment.

The invention relates to a high-toughness cast aluminum-silicon alloy and a waste aluminum regeneration method thereof. The method sequentially comprises the following steps that waste aluminum is prepared and smelted, melt is refined and subjected to modification treatment, furnace interior blowing refining and gas and impurity removal treatment are conducted, casting forming is conducted, and solid solution treatment and artificial aging are conducted. Through optimization design of the waste aluminum proportion and refining modification treatment of the aluminum alloy melt, danger to strength and plasticity of the cast aluminum-silicon alloy from thick alpha-Al branch crystals, the needle sheet type eutectic Si phase and the Fe-rich phase are eliminated, and the strength and plasticityof the cast aluminum-silicon alloy are improved. According to the high-toughness cast aluminum-silicon alloy and the waste aluminum regeneration method thereof, waste aluminum serves as a main raw material to directly regenerate the high-toughness cast aluminum-silicon alloy, cyclic utilization of aluminum, silicon, magnesium, copper and other metal resources is achieved, the waste aluminum usagevalue is improved, the cast aluminum-silicon alloy production cost is reduced, and the cast aluminum-silicon alloy has high strength, good plasticity and good abrasion resisting and heat resisting performance.

The invention discloses a reactor coolant pump water lubrication radial bearing test device and a test simulation method. The invention discloses a reactor coolant pump water lubrication radial bearing test device. An elastic pin coupler can regulate the shaft centering, bears a big instantaneous overload and performs buffer vibration absorption; a single-row deep-groove ball bearing can bear the axial force under an operation working condition and can guarantee the smooth operation of the shafting in the high speed working condition; electromagnetic induction heating can realize the application of different stage temperature loads on the periphery of the bearing; a pressure pump and a regulation valve in a circuit can perform regulation on the bearing cooling water quantity, pressure and temperature; a water tank heater and a cooler regulate the bearing to inject the cooling water temperature; and the test device has the same working condition with the bearing in the reactor coolant pump. The invention is simple in structure, strong in adaptability, wide in application range and is applicable to the performance test of different stage water lubrication radial bearing.

The invention provides a vertical water lubrication transverse bearing test device. The vertical water lubrication transverse bearing test device comprises a bracket formed by a motor bracket, a middle bracket and a lower bracket, an upper rotor support assembly arranged at a joint part of the motor bracket and the middle bracket, a test bearing fixing assembly arranged at a joint part of the middle bracket and the lower bracket, a lower rotor support assembly arranged at the bottom of the lower bracket, a load applying device arranged at the side part of the lower bracket and a driving motor arranged on the motor bracket. The invention further provides a test simulation method of the vertical water lubrication transverse bearing test device. The vertical water lubrication transverse bearing test device and the test simulation method thereof have the advantages that the structure is simple, the applicability is high, the application range is wide, and the device and the method are applicable to different levels of performance tests of water lubrication transverse bearings of reactor coolant pumps.

The invention relates to the technical field of treatment on waste water containing heavy metal cadmium, in particular to an application of fixed Lentinus edodes prosthecae to heavy metal cadmium pollution. A method of the application comprises the following steps of adopting the fixed Lentinus edodes prosthecae as an adsorbent in sewage containing the heavy metal cadmium, preparing a fixed bed reactor with the adsorbent, utilizing the fixed bed reactor to adsorb the heavy metal cadmium in the sewage for the removal of the heavy metal cadmium, and then resolving the adsorbed heavy metal for a purpose that the fixed Lentinus edodes prosthecae can adsorb the sewage containing the heavy metal cadmium again after the resolving. With the adoption of the fixed bed reactor for treatment on the heavy metal waste water, the operation is simple, the stability is good and the treatment effect is good; moreover, post-fixed biological dead bodies are adopted as carriers in the bed, so that operations such as aeration are unnecessary; therefore, the use is wide; and the resolving of the biological adsorbent adsorbing heavy metal ions not only can prevent the secondary pollution, but also can enable the heavy metal to be recovered, so that the metal resource is saved.

The invention discloses a waste aluminum regenerated high-strength and high-toughness aluminum alloy and a preparation method thereof, and belongs to the technical field of aluminum alloy preparation. The aluminum alloy is prepared from, by mass, 8.52-8.74% of Si, 0.35-0.38% of Mg, 0.63-0.64% of Fe, 0.037-0.043% of Cr, 0.012-0.016% of Ti, 0.034-0.035% of Mn, 0.020-0.030% of Ni, 0.030-0.040% of Ba, 0.004-0.006% of C, 0.005-0.010% of B, and the balance Al and impurity elements. According to the waste aluminum regenerated high-strength and high-toughness aluminum alloy and the preparation method thereof, the high-strength and high-toughness aluminum alloy is regenerated by taking waste aluminum as the main raw material, so that recycling of metal resources such as Al, Si and Mg is realized, the use value of the waste aluminum is improved, and the production cost of the aluminum alloy is reduced. The prepared aluminum alloy is high in strength, good in plasticity and suitable for casting and forming various stress structural parts with high requirements for strength and plasticity.

The invention discloses a high-temperature resisting carbon fiber guide line which comprises a carbon fiber line core, mica tape layers, a conducting medium layer and an insulating layer. A plurality of mica tape layers are coated on the outer surface of the carbon fiber line core, the conducting medium layer is arranged outside the mica tape layers, and the insulating layer is coated outside the conducting medium layer. Each mica tape layer comprises a polyester thin film, mica paper and a glass cloth in sequence from external to internal, wherein the polyester thin film, the mica paper and the glass cloth are connected through glue adhering layers. The high-temperature resisting carbon fiber guide line has the advantages of saving metal resources, reducing cost and guaranteeing that the mica tape is not destroyed in the process of using and being good in fireproof and high-temperature resistance performance and high in practical value.

The invention relates to a rubber powder magnetic separation system and a magnetic separation method. The rubber powder magnetic separation system comprises a base, a [-shaped plate, a rubber collection box, metal collection boxes, a magnetic separation box, a magnetic separation mechanism, a material cleaning mechanism and shaking mechanisms, wherein the [-shaped plate is arranged on the rear side of the upper end face of the base; the rubber collection box is arranged in the middle of the upper end face of the base; the metal collecting boxes are symmetrically arranged on the left side and the right side of the upper end face of the base; a magnetic separation box is arranged on the inner side of the [-shaped plate and located at the upper end of the rubber collecting box in a front-backsliding fit mode; a feeding groove is formed in the right side of the upper end face of the magnetic separation box; a magnetic separation mechanism is arranged in the magnetic separation box; the material cleaning mechanism is arranged at the position, located outside the magnetic separation mechanism, in the magnetic separation box; and the shaking mechanisms are arranged on the front side andthe rear side of the magnetic separation box. According to the rubber powder magnetic separation system and the magnetic separation method provided by the invention, the problems that in the prior art, in the process that a rubber powder magnetic separator is used for conducting magnetic separation operation on rubber powder made of waste tires, the effect of conducting magnetic separation on therubber powder is poor, the rubber powder magnetic separator needs to be cleaned frequently, and the like are solved.