32results about How to "No entrainment" patented technology

The invention discloses an alloy liquid extrusion casting and forming device which comprises a liquid material chamber (1), a hammerhead (2), a sealing slide way (3), a pouring slot (4), a stationary workbench (71), a sealing cutter and an injection device (76). In the invention has the technical scheme, from bottom to top, an alloy liquid material is firstly injected under low pressure into a die cavity for mold filling, and then extruded under high pressure until the alloy liquid material is cooled, cured and formed into products in the die cavity. By adopting the technical scheme, the invention overcomes the defects of elaborate procedures, low efficiency, high cost, poor quality and great energy consumption existing in the prior art. The provided alloy liquid extrusion casting and forming device and a technical method thereof enable the alloy casting products to have perfect exhausting, no cold lap, sufficient casting, no flash, compact structure, fine and close crystal grain, high mechanical performance and high dimension precision as well as be subject to thermal treatment and welding. Thus, alloy liquid forming production achieves the purposes of high quality, high efficiency, low cost and low energy consumption.

The invention provides an associated gas condensate recovery device which comprises a cylinder body, an upper end seal head welded on the upper end surface of the cylinder body, a lower end seal head welded on the lower end surface of the cylinder body, a transverse gas inlet pipe welded on the upper part of the outer wall of the cylinder body and penetrating the cylinder body, a longitudinal gas outlet pipe arranged on the upper end seal head and far away from the horizontal gas inlet pipe and penetrating the upper end seal head, a longitudinal draining pipe arranged on the bottom of the lower end seal head, and liquid dividing plates arranged in the cylinder body; the inner surface of the upper end seal head is provided with a vertical-direction baffle plate extending downwards along the longitudinal direction; multiple liquid dividing plates are successively arranged on the left side and the right side of the baffle plate from top to bottom and are inclined downwards; gaps are formed between the liquid dividing plates and the bottom of the cylinder body. Therefore, the device can greatly improve the gas-liquid separation rate of associated gas, and ensures the associated gas is not carried with liquids when entering a burner and can be fully burnt.

The invention discloses an alloy liquid extrusion casting forming device which comprises a hammerhead (1), a static die (2), a movable die (3) and a pouring slot (4). The device adopts the technical scheme that a declined and downward funnel-shaped pouring slot occupied by both the movable die and the static die arranged respectively by half is arranged on the parting plane on one side of a vertical die casting mould; a cylinder chamber type feed liquid chamber and the piston type hammerhead with a sealing knife is arranged on the static die; the hammerhead is controlled to be pushed up, and simultaneously the sealing knife seals the pouring slot. Firstly, feed liquid is filled into the a die cavity at high speed with low pressure, then the semisolid feed filled into the die cavity is extruded at low speed with high pressure, and the semisolid feed is gradually condensed to be formed under high-pressure low-speed extrusion. The alloy liquid extrusion casting forming device and the process method thereof integrate full casting functions of low-pressure filling and high-pressure extrusion into a whole, ensure that forming of alloy casting achieves the purposes of no gas entrapment, no cast seam, no mis-run, no forging crack, no fash, compact texture, fine crystal grain, high mechanical property, capability of performing thermal treatment and sealing, high dimensional accuracy, energy saving and low cost.

The invention relates to a method extracting high purity n-hexane by integrating rectification and extraction. The method utilizes aromatic hydrocarbon raffinate oil as a raw material and adopts a three-tower technological process which combines continuous rectification and extractive distillation. Firstly, distillate lighter than n-hexane is removed in a rectifying tower, and n-hexane distillate which is around 80% in content is obtained at the bottom of the tower. The distillate at the bottom of the tower is adopted as the raw material of an extractive distillation tower, N-methyl pyrrolidone is adopted as an extracting solvent to be delivered into the extractive distillation tower, and the proportion of the N-methyl pyrrolidone and raw oil is 8:1, after extractive distillation, high purity n-hexane is extracted at the top of the tower by integrating rectification and extraction, and heavy components which are rich in methylcyclopentane and the extracting solvent are at the bottom of the tower. Materials at the bottom of the tower are delivered into a solvent recovery tower, distillate oil which is rich in methylcyclopentane is separated at the top of the tower, and N-methyl pyrrolidone solvent is at the bottom of the tower and sent back to the extractive distillation tower to be recycled. By means of the method, n-hexane content can achieve 99%, no extracting solvent is contained in products, solvent consumption is smaller than 0.1%, one-off yield of n-hexane is larger than 95%, and compared with traditional rectification, energy consumption can be saved over 50%.