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79results about How to "Flexible production methods" patented technology

Hydrogenation modification method for coking gasoline and diesel distillates

ActiveCN102465023AAvoid Coking ProblemsFlexible production operationsTreatment with hydrotreatment processesChemistryKerosene
The invention discloses a hydrogenation modification method for coking gasoline and diesel distillates. A coking gasoline and diesel raw material is mixed with heated hydrogen and then introduced to pass through a low-temperature hydrorefining reactor and a hydrogenation modification reactor in sequence; a reaction effluent is separated and modified, and obtained liquid is distilled to obtain gas, gasoline, kerosene and diesel. In the method disclosed by the invention, a process flow of mixing hydrogen behind a furnace is adopted, the heating furnace is only used for heating the hydrogen, the mixed raw material does not pass through the heating furnace, and the temperature of the reactor is controlled based on the quantities of hot hydrogen and cold hydrogen. Compared with the prior art, the hydrogenation modification method disclosed by the invention has the advantage of saving equipment investment and being flexible in production scheme, can be used for flexible production by adjusting process conditions and production distribution according to the differences of raw material properties and product schemes; by implementation of hydrogen mixing behind the furnace, the coking raw material can be effectively prevented from being coked at a furnace tube; and by arrangement of a low-temperature protective agent reactor, olefin saturation is performed at lower temperature so as to reduce coking, meanwhile, coke powder is distributed at a protective agent bed as uniform as possible, so that the long-term operation of a hydrogenation device is ensured.
Owner:CHINA PETROLEUM & CHEM CORP +1

Hole flanging method and die for forming high flange on thin plate

InactiveCN102527759AHigh flange heightAvoid breakingExtrusion diesEngineeringThin sheet
The invention discloses a hole flanging method and dies for forming a high flange on a thin plate. The hole flanging method comprises the following steps of: extruding a taper hole, flanging the hole reversely and setting molding, namely extruding the taper hole which does not pierce a sheet metal, flanging the taper hole reversely, and drawing to form a high flange which is subjected to the hole flanging. According to the dies for forming the high flange on the thin plate, hole prepressing and hole flanging can be performed by using two sets of dies, and disposable hole prepressing and hole flanging also can be performed by using a set of dies. According to the hole flanging method and the dies, scrap materials are avoided, the height of the flange formed by the hole flanging is high, and the extruded taper hole can prevent materials from cracking during post-hole flanging, so that a pointed sharp corner is not formed at the margin of the flange which is subjected to the hole flanging, and potential safety hazards are avoided; a production mode is flexible, namely the flange can be formed by two-time hole flanging and also can be formed directly by one-time hole flanging; and the dies for the process have a simple structure, so that the improvement of the machining efficiency is facilitated.
Owner:深圳亿和模具制造有限公司

An inferior diesel oil hydro-upgrading and hydrofining combined process

The invention discloses an inferior diesel oil hydro-upgrading and hydrofining combined process. A diesel oil raw material is firstly fractionated into a light fraction and a heavy fraction; the lightfraction is subjected to aromatic hydrocarbon extraction to obtain a light aromatic hydrocarbon fraction and a light non-aromatic hydrocarbon fraction; the heavy fraction enters a hydrofining reactor, and the material passing through a first hydrofining catalyst bed layer is divided into two streams; one material stream is extracted out of the hydrofining reactor and mixed with the light aromaticfraction, and the mixture enters a hydrofinishing reactor for hydrofinishing reaction; the other material stream is mixed with the light non-aromatic fraction and then flows downwards through a hydrofining catalyst bed layer at the lower part; the hydrofined material flow enters a hydro-upgrading reactor; and an obtained hydro-upgrading reaction material and an obtained hydrofinishing reaction material are respectively subjected to gas-liquid separation and fractionation to obtain high-quality diesel oil products and a high-quality FCC feed material. The invention provides the hydrogenation combined process for simultaneously producing more than two kinds of diesel fractions with different purposes on one set of hydrogenation process equipment for the first time.
Owner:CHINA PETROLEUM & CHEM CORP +1

Inferior diesel oil hydro-upgrading and hydrofining combined method

The invention discloses an inferior diesel oil hydro-upgrading and hydrofining combined method. A diesel oil raw material is firstly subjected to aromatic hydrocarbon extraction to obtain an aromatichydrocarbon fraction and a non-aromatic fraction; the non-aromatic fraction enters a hydro-upgrading reaction zone under hydro-upgrading conditions, hydro-upgrading materials passing through a hydro-refining catalyst bed layer and a hydro-upgrading catalyst bed layer enters a hot high-pressure separator for obtaining of a gas phase and a liquid phase, and the liquid phase is subjected to separation and fractionation, so that high-quality naphtha and high-quality diesel oil products are obtained; and the gas phase of the hot high-pressure separator is mixed with the aromatic hydrocarbon fraction, the formed mixture enters a supplementary hydrofining reaction zone under hydrofining process conditions, and a supplementary hydrofining material flow obtained by a hydrofining catalyst bed layeris continuously subjected to gas-liquid separation and fractionation, so that a high-quality FCC feed is obtained. According to the invention, firstly the hydrogenation combined method for simultaneously producing two or more diesel fractions with different meshes by one set of hydrogenation process device is provided, heat carried by a part of hydrogenation modification materials can be fully utilized, and the effective utilization of energy is realized.
Owner:CHINA PETROLEUM & CHEM CORP +1

An inferior diesel oil hydro-upgrading and hydrofining combined process

The invention discloses an inferior diesel oil hydro-upgrading and hydrofining combined process. A diesel oil raw material is fractionated to obtain a light fraction and a heavy fraction; the light fraction is subjected to extraction with aromatic hydrocarbon to obtain a light aromatic hydrocarbon fraction and a light non-aromatic hydrocarbon fraction; the heavy fraction enters a hydrofining reactor, and the material passing through a first hydrofining catalyst bed layer is divided into two streams; one material stream enters a separator, and the obtained liquid is extracted out of the hydrofining reactor and enters a hydro-finishing reactor together with the light aromatic hydrocarbon fraction for a hydro-finishing reaction; the other material stream is mixed with the light non-aromatic fraction and then flows downwards through a second hydrofining catalyst bed layer; a hydrofined material flow enters a hydro-upgrading reactor; and a hydro-upgrading reaction product and a hydro-finishing reaction product are respectively subjected to gas-liquid separation and fractionation to obtain high-quality diesel oil products and high-quality FCC feed materials. The invention provides the hydrogenation combined process for simultaneously producing more than two kinds of diesel fractions with different purposes on a set of hydrogenation process equipment.
Owner:CHINA PETROLEUM & CHEM CORP +1

Device and method for printing three-dimensional pattern in form of varnish spraying

The invention relates to a device and method for printing a three-dimensional pattern in form of varnish spraying. The device and method for printing the three-dimensional pattern in form of the varnish spraying comprises a printing machine tool and a controller, wherein the printing machine tool is provided with a printing table used for bearing a substrate, a negative pressure adsorption mechanism is arranged in the printing machine tool, and a plurality of adsorption holes communicated with the negative pressure adsorption mechanism are uniformly formed in the printing table; a plurality ofinkjet printing mechanisms are arranged on the printing machine tool, and curing devices are arranged on the printing machine tool; and the controller is electrically connected with the inkjet printing mechanisms, and the controller is electrically connected with the curing devices for controlling the opening and closing of the curing devices. A code spraying mode is adopted by the inkjet printing mechanisms, the jet printing ink can be firmly attached to any substrate, a traditional production mode is exceeded as the production mode is more flexible, variable data are applied, and even one piece of paper can be arranged for printing, so that the requirements of the lowest number threshold for printing is greatly lowered, the needs of blind people for personalized products are met, and the user experience of the blind people is improved.
Owner:CHONGQING HONGJIN PRINTING

Movable integrated device for producing precast concrete planks and production process

The invention belongs to the technical field of precast concrete plank production, and particularly relates to a movable integrated device for producing precast concrete planks and a production process. The device comprises a form table, a travelling portal frame, a form table lifting appliance, a portal lifting cable, a material distributing machine, a form table base and a form releasing liftingappliance, wherein the form table is arranged on a form table station and used for forming the prefabricated concrete planks, the form table base is used for overlapping form tables, the travelling portal frame stretches across the two sides of the form table and can travel, the portal lifting cable is arranged at the top of the travelling portal frame, the form table lifting appliance is connected to the portal lifting cable on the travelling portal frame and is used for lifting the form table, the material distributing machine is connected to the portal lifting cable on the travelling portal frame and used for pouring concrete on the form table, and the from releasing lifting appliance is used for lifting the formed precast concrete planks. According to the device and the process, the basic construction requirement is low, open-air production can be achieved, a standard temporary workshop can also be adopted, the occupied area is greatly reduced, the capacity is only about 20% of that of an existing production mode, and the space is fully utilized.
Owner:赵红玲

Hot extrusion forming method of stainless steel rail

PendingCN112207145AEasy to produceMolding process is stableExtrusion diesMaterials scienceHeat treating
The invention relates to a hot extrusion forming method of a stainless steel rail. A hot extrusion forming system comprises machining equipment, heating equipment, lubricating equipment, hot extrusionequipment, a cooling bed, heat treatment equipment and inspection equipment. The hot extrusion forming method comprises the following steps: (1) blank processing: sawing a forged polished blank roundsteel, lathing and polishing the outer surface; (2) induction heating: heating the blank by a multi-section heating and temperature equalizing method; (3) tool and mold preparation: adopting an extrusion mold with the same hole pattern as the steel rail; (4) lubricating: lubricating the outer surface of the blank and extrusion mold glass; (5) hot extrusion: performing hot extrusion on the blank to form the steel rail; (6) cooling: carrying out air cooling on the extruded steel rail; (7) heat treatment: performing heat treatment on the steel rail; and (8) inspection: inspecting the surface quality, size, mechanical property and physicochemical property of the steel rail. By reasonably integrating the production process, the production process is optimized, the produced stainless steel railmeets the quality requirement, the production cost is reduced, and the economic efficiency of enterprises is improved.
Owner:HANDAN XINXING SPECIAL TUBING CO LTD

Production and apparatus for preparing non-dendritic and semi-solid alloy by low-voltage pulse electric field

The invention relates to a low-voltage pulse electric field preparation method and special equipment for semi-solid metal slurry or blank. Preparation method: first melt the alloy and keep it warm in the heat preservation crucible. The upper and lower ends of the alloy melt are respectively connected to the positive and negative electrodes of the output end of the pulse power supply. Before the solidification starts, start the pulse power supply to perform pulse discharge on the alloy melt. Apply a pulsed electric field. Special equipment: It consists of three parts: pulse electric field generator, pulse electric field effect device and heating and heat preservation device. The pulse current generated by the pulse electric field generator is applied to the alloy melt placed in the heat preservation device through the pulse electric field effect device. Adjust the pulse discharge voltage, discharge time and pulse frequency according to the type and composition of the alloy, and control the solidification speed of the alloy during the pulse discharge, and finally obtain a non-dendritic semi-solid alloy blank or slurry with a spherical or granular primary phase , can be used in the production of metal semi-solid alloy preparation and forming.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Method for smelting ultra-low carbon stainless steel through intermediate frequency furnace

The invention discloses a method for smelting ultra-low carbon stainless steel through an intermediate frequency furnace. The method comprises the specific steps of firstly, molten iron pretreatment; secondly, intermediate frequency smelting; thirdly, oxygen blowing and carbon reducing; fourthly, microelement adding; fifthly, deoxidation treatment; sixthly, casting shaping; and seventhly, electroslag remelting. An intermediate frequency furnace smelting manner and an electroslag remelting refining manner are adopted to produce the ultra-low carbon stainless steel, the production manner is flexible, and the material supply manner of small batches, multiple specifications and urgent demands of a customer can be met; the intermediate frequency furnace is high in smelting speed, good in power-saving effect, few in burning loss and low in energy consumption; the smelting efficiency is improved; and electroslag remelting refining is adopted to enable the inner structure of a steel ingot to be more compact, and the ultra-low carbon stainless steel is high in purity, low in sulfur containing, less in nonmetallic inclusion, smooth in surface, clean, even and compact and even in gold phase structure and chemical component.
Owner:四川民盛特钢锻造有限公司

Multi-mode energy-saving hot-rolled strip steel production line and using method thereof

The invention discloses a multi-mode energy-saving hot-rolled strip steel production line. The multi-mode energy-saving hot-rolled strip steel production line mainly involves a continuous casting tundish, a mold, a descaling machine 3, a roughing mill, a swing shear, an intermediate billet manipulator, a hot coil box, a rolling shear, a scrap steel removing device, a soaking pit furnace, an intermediate cooling device, a descaling machine 12, a finishing mill, a laminar cooling device, an induction soaking device, a flying shear and a recoiling machine, wherein the intermediate cooling deviceis arranged between the soaking pit furnace and the finishing mill, the scrap steel removing device is arranged behind the rolling shear, the scrap steel removing device do not communicate with the soaking pit furnace, the movable hot coil box is arranged between the intermediate billet manipulator and the rolling shear, and the induction soaking device is arranged between the laminar cooling device and the flying shear; and a using method comprises the following steps of smelting; casting into a blank; descaling for the first time; rough rolling; heating; cooling; descaling for the second time; finish rolling; cooling; electromagnetic induction heating; and coiling. The method not only has austenite rolling, but also can realize ferrite rolling, single-billet rolling and continuous rolling can be further achieved, and a product is uniform in mechanical property, low in comprehensive energy consumption and wide in thickness coverage range.
Owner:WUHAN UNIV OF SCI & TECH

3D printing microchannel reactor for production of natural gas by coal gas and printing process thereof

The embodiment of the invention discloses a 3D printing microchannel reactor for production of natural gas by coal gas. The 3D printing microchannel reactor is formed by a plurality of same modular units which are connected in series and / or in parallel in array arrangement. Each module unit comprises a protecting shell made from steel and a reaction catalytic inner core made from nickel. A plurality of catalytic channels are arranged in the reaction catalytic inner core. Microporous reaction interfaces are formed by high-temperature induction on the inner surfaces of the catalytic channels andpickling and alkali dissolution. The invention also discloses a 3D printing process which is characterized by comprising a printing process of a 3D model and a post-processing process of the D3 printing model. The microchannel reactor can be prepared quickly and stably, can be formed primarily without assembling and secondary processing, and the microchannel reactor can be accumulated modularly.Meanwhile, catalysts formed in the microchannel pores are wear-resistant without carbon deposition and pulverization to block the channels, so that the reaction speed is high and the production efficiency can be improved.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI
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