62results about How to "Satisfy process needs" patented technology

The invention is a single-acting sheet hydraulic test machine of variable border pressing force and press speed. It uses the displacement of the top slide block as the independent variable, accordingto the present working curve, uses the pressure and speed sensor to real-timely sample the pressure and speed data provide for the PLC to make close-loop control, which realize the continual variation of the border-pressing force within 150KN-1250KN and the adjustment of the press speed within 4-20 mm/s.

A system, method and device for controlling and modifying the current drawn by an electrical load in a way that will improve the electrical power factor and harmonic quality of at least a portion of an electrical power system. In one embodiment of the invention, the invention includes a controller device that monitors the electrical current entering a site and modifies or corrects power quality of the current by directing how power will be consumed by the appliances at a site to improve the harmonic and power factor qualities of the electrical current entering the site.

The invention relates to a manufacture method of furan resin used for steelcasting, in particular to a manufacture technology of low nitrogen furan resin used for steelcasting. The optimum formula is: 8 to 9 shares of formaldehyde (36.5 percent ), 3 to 5 shares of carbamide, no less than 85 shares of furfuryl alcohol, 40 percent of NaOH solution, 10 percent of hydrochloric acid solution, 0.2 percent of silane coupling agent; the invention comprises the following steps: feeding material, increasing temperature by heating, dehydration, synthesizing, discharging material, packing and warehousing; the invention uses the unique technology to achieve good performances that free formaldehyde of low nitrogen furan resin used for steelcasting is less than 0.1 percent, the tensile strength for 24 hours is more than 2.2MPa, the using time is more than 30 minutes, and the nitrogen content is less than 1.4 percent.

The invention provides a selective hydrogenation catalyst for C5 fraction. The catalyst takes a compound of alumina and molecular sieves as a carrier and takes metals in the IA or IIA group, the VIII group, the IVA group and the IB group as active components. The compound carrier is soaked in aqueous solution of metallic compound in the IA/IIA group and is soaked in water soluble salt solution of the metals in the VIII group, nitrate solution of the metals in the IVA group and nitrate solution of the metals in the IB group by one step or multiple steps; after being soaked by one step, the compound carrier is dried for 12-20h at the temperature of 80-200 DEG.C, and then is calcined for 1-12 hours at the temperature of 350-650 DEG C. When the selective hydrogenation is carried out on unsaturated compounds in the C5 fraction by the catalyst, the transformation ratio of alkyne hydrogenation is more than or equal to 45%, the transformation ratio of dialkene is 15-35%, the content of alpha position olefin after hydrogenation is more than or equal to 15% and can meet the need of producing alpha-resin with high quality in the process of subsequent production, thus improving the quality of the alpha-resin products.

The invention relates to a magnesium-iron-carbon brick used for a vanadium-extracting converter and a preparation method thereof, and belongs to the technical field of refractory materials. The brick comprises, by weight, 62-84% of fused magnesite clinker, 10-18% of flaky graphite, 5-12% of iron powder, 1-3% of netted fixed carbon and 0-5% of an anti-oxidant. The preparation method comprises (1) a step of mixing the fused magnesite clinker, the flaky graphite, the iron powder and an organic binding agent, adding or not adding the anti-oxidant, and mixing uniformly to obtain a mixture; (2) a step of subjecting the mixture to compression moulding under a pressure of 200-250 MPa to prepare an unburned brick; and (3) a step of subjecting the unburned brick to heat treatment at 150-250 DEG C for 12-32 h to obtain the magnesium-iron-carbon brick. The brick provided by the invention has good practical performances and the simple preparation method, and has a good application prospect.

The invention relates to a sealed recovery and operation pressure stabilizing control method for tank top tail gas of a refinery enterprise atmospheric storage tank. The sealed recovery and operation pressure stabilizing control method for the tank top tail gas of the refinery enterprise atmospheric storage tank is suitable for production requirements of a refinery enterprise and comprises the steps that the tank top tail gas in a steam jet compressor is subjected to gas-steam on-line supercharging and then conveyed to a cooler to be cooled to 45 DEG C; after the tank top tail gas is subjected to gas-liquid separation, non-condensable gas enters a refinery low-pressure gas flare system, and condensate liquid reflows to a sewage storage tank through self pressure. Normal operation of the sealed recovery and operation pressure stabilizing control method is controlled in a segmented mode, when the tank top pressure is 0-0.3 kPa, a nitrogen adjusting valve is opened, and a steam adjusting valve is closed; when the tank top pressure is 0.3-0.5 kPa, the nitrogen adjusting valve is closed, and the steam adjusting valve is closed; when the tank top pressure is 0.5-1.5 kPa, the nitrogen adjusting valve is closed, and the steam adjusting valve is opened; and when the tank top pressure is greater than or equal to 1.5 kPa, a control brake valve is opened. According to the sealed recovery and operation pressure stabilizing control method for the tank top tail gas of the refinery enterprise atmospheric storage tank, the tank top tail gas of the atmospheric storage tank is led into the refinery low-pressure gas flare system after being supercharged, the zero emission purpose is achieved, and the problem that the atmospheric storage tank is low in operation pressure is solved.

The invention relates to a low-carbon dense baking system for modulating cured tobacco, comprising a group of dense curing barns; a double-arch film tent is arranged above each dense curing barn; a double-arch film heat-collecting and heat-trapping room is arranged below each double-arch film tent; the double-arch film heat-collecting and heat-trapping room is communicated with a hot air shared passage; a single-pit hot air personal passage communicated with a dense curing barn heating room is arranged on the hot air shared passage; a high-temperature smoke radiation pipe communicated with a heating furnace chimney through a smoke on-off machine is arranged in the double-arch film heat-collecting and heat-trapping room; the high-temperature smoke radiation pipe is communicated with a smoke interconnecting passage; and the smoke interconnecting passage is communicated with a smoke devulcanizer; and the smoke devulcanizer is communicated with a desulphurization reaction settling pond. The system is reasonable in design, thereby reducing the energy consumption of the tobacco modulation by more than 40% and reducing the discharge of pollutants by more than 60%.

The invention belongs to the technical field of water treatment and relates to a micro bubble generation method and a micro bubble generator. The micro bubble generator comprises a microporous device,a hollow pipe, a rotating joint, a motor, a power output shaft, a driving shaft and an air pump, wherein the motor is connected with the microporous device through the power output shaft and the driving shaft in sequence and drives the microporous device to rotate around the axial direction of the driving device; the air pump is communicated with the microporous device through the rotating jointand the hollow pipe in sequence and inputs gases into the microporous device; the surface of the microporous device is provided with micropores of which the porosity is not lower than 28 percent; thesize of the micropores is 0.01 to 2 mu m; the gases entering the microporous device overflow from the micropores on the surface of the microporous device to form bubbles with particle size of 5 to 100mu m. The invention provides the micro bubble generation method and the micro bubble generator, which have the advantages of low energy consumption, simple structure and capability of stably producing a large amount of high-density micro bubbles with uniform particle size in liquid phase for a long term.

The invention discloses a hot rolling process for aluminum alloy for anodic oxidation. The hot rolling process comprises the following steps that (1) homogenization heat preservation is conducted on an aluminum alloy plate ingot under the temperature of 450-490 DEG C; (2) after homogenization, rolling starting is conducted at the temperature of 410-460 DEG C with an equal rolling reduction distribution principle; (3) hot rolling is conducted till the temperature of the plate ingot is 350-390 DEG C, small-rolling-reduction rolling with the reduction rate of 7% is conducted once first, and then over-rolling-reduction rolling with the reduction rate of 45% is conducted once; and (4) after treatment of the step (3), rolling continues to be conducted with the equal rolling reduction distribution principle, and the finish rolling temperature is controlled to 235-270 DEG C. Through the hot rolling process, the forming ability of products machined by a common single-rack hot mill can completely reach the effect of a multi-rack hot continuous rolling mill, the hot rolling process is wide in practicability, the production and control difficulty and the cost are low, the product market competitiveness is obvious, and economic benefit is remarkable.

The invention discloses a high-concentration solution or solid particle material conveying device with a heat exchange function. The device comprises a frequency conversion motor speed reducer drivinga guide vane shaft to rotate, a shell, a material inlet, a material outlet, a spiral-shaped conveying guide vane arranged in the shell, a shaft used for fixing a guide vane and a bearing used for fixing the guide vane shaft. By means of the device, a heating cavity is formed in the outer portion of the shell, the interiors of the guide vane shaft and the interior of the guide vane are cavities, the cavity of the guide vane shaft is provided with a heating medium input end and a cooling medium output end in a communication manner, and the starting end and the terminal of the cavity of the guide vane are provided with channels to communicate with the cavity of the guide vane shaft. The high-concentration solution or solid material conveying device can also be used as an independent and complete device for conveying high-concentration solutions or solid fluid materials, meanwhile, the materials are heated or cooled, the technology requirements are met, the productivity can be greatly increased, and the work efficiency is improved.

The invention discloses a glass high-temperature kiln flue gas energy conservation and emission reduction purification system and method. The system comprises a glass kiln, a catalytic reaction tower and an adsorption system which are sequentially connected through flue gas pipelines, and an ammonia adding device is connected to the catalytic reaction tower. The glass high-temperature kiln flue gas energy conservation and emission reduction purification system and method have the advantages that flue gas from the glass kiln needs to be subjected to dedusting treatment, impurities in the flue gas can be prevented from plugging devices and catalysts in subsequent process sections; the flue gas which is too high in temperature can affect normal operation of a dedusting device, and the flue gas which is too low in temperature is not beneficial for subsequent desulfurization and denitrification treatment; according to the technical scheme, the characteristic of the flue gas itself is utilized, heat exchange is conducted on cooled flue gas and high-temperature flue gas, the technological requirement is met, heat energy contained in the flue gas is fully utilized, two adsorption towers are used for secondary adsorption purification in a one in service and one in standby mode, that is to say, one adsorption tower is used for purification treatment, the other adsorption tower is used for regeneration operation, when regeneration operation is conducted, heat energy is provided by the high-temperature flue gas, energy conservation and environment protection are achieved, and the sustainable development requirement is met.

The invention relates to a manual cam elastic adjusting device for a circular knife machine. The manual cam elastic adjusting device comprises a machine base, a bottom roller is mounted on the machine base, and a pressing roller is in pressure joint to the bottom roller. The manual cam elastic adjusting device further comprises pressure adjusting mechanisms, the pressure adjusting mechanisms acting on the two sides of the pressing roller are arranged on the machine base, and each pressure adjusting mechanism is composed of a spring supporting core, a rotating sleeve, a standby nut, a fixed block and a rectangular spring. The manual cam elastic adjusting device for the circular knife machine is scientific and reasonable in design, has the advantages of being convenient to operate, capable of saving time and labor, capable of improving the die cutting efficiency and reducing the rejection rate, high in adjusting accuracy and easy to implement, and has high innovativeness.

The invention relates to a method for cooling and secondary blowing-in of a converter. The method comprises blowing-out of the converter, blowing-out of the converter for maintenance, converter dryingand blowing-in processing for secondary blowing-in of the converter, and smelting processing after secondary blowing-in of the converter. According to the invention, during blowing-out of the converter, no brick in a converter lining is exposed; no slag in the blown-out converter is subjected to slagging; the converter is naturally cooled at a room temperature, so converter lining bricks are slowly cooled; during cooling of the converter, water is prohibited from leaking into the converter; when the converter is shut down, a tap hole cannot be exchanged; and after the converter is shut down,different damaged parts of the converter lining are repaired by adopting different repair materials and repair manners. With the method provided by the invention, under the situation that the converter with a magnesia carbon brick lining has shut down for 72 hours or more or the temperature of the converter drops to an environment temperature, the converter lining bricks are not removed or re-built, and the converter is started again through secondary drying of the converter. Thus, under the premises of guaranteeing safe production and meeting process demands, the refractory material cost of the converter in a steelmaking plant is reduced; production capacity can be dynamically adjusted at any time; and the converter in the steelmaking plant can be started and shut down at any time according to market situations.

The invention discloses a hot rolling process of a hard aluminum alloy for anodic oxidation. The hot rolling process comprises the following steps that (1) a hard aluminum alloy plate ingot is subjected to homogenized heat preservation at the temperature of 490 DEG C for 8 hours; (2) after homogenizing is conducted, rolling is started at the temperature of 440-460 DEG C according to the equal rolling reduction allocation principle; (3) hot rolling is conducted till the temperature of the plate ingot is 370-390 DEG C, one time of low reduction rolling with the rolling reduction ratio being 7% is conducted at first, and then, one time of ultra-high reduction rolling with the rolling reduction ratio being 45% is conducted; and (4) after the plate ingot is treated through the step (3), rolling continues to be carried out according to the equal rolling reduction allocation principle, and the final rolling temperature is controlled to be 250-270 DEG C. By means of the hot rolling process, the forming capacity of a product machined by a common single-rack hot rolling mill can completely achieve the effect of a product machined by a multi-rack hot continuous rolling mill. According to the hot rolling process, practicality is high, the production and control difficulty and the cost are low, the product market competitiveness is obvious, and economic benefits are remarkable.

The invention relates to a bimetallic sintering process of spheroidal graphite cast iron and copper. The bimetallic sintering process comprises the following steps of: selection of raw materials: QT700 is adopted for a spheroidal graphite cast iron base body and lead bronze is selected for a copper rod; ultrasonic cleaning: before sintering, a water-based cleaning liquid is adopted for cleaning the spheroidal graphite cast iron and the lead-bronze copper rod thoroughly; vacuum cleaning: under the condition of vacuum negative pressure, a carbon-hydrogen cleaning agent is utilized for further circulatory cleaning of the spheroidal graphite cast iron and the lead-bronze copper rod; coating of a fluxing agent: a layer of fluxing agent with the thickness of 0.5mm-1.5mm is coated on the surfaceof the spheroidal graphite cast iron; treatment of the copper rod: a coating for preventing the copper rod from generating air holes on the surface of the spheroidal graphite cast iron in the processof heating and melting is sprayed on the surface of the copper rod, and then the treated copper rod is placed on the spheroidal graphite cast iron; and sintering. The bimetallic sintering process canbe used for solving the problems such as poor combining strength and mixing of the air holes on the combined surface in the bimetallic sintering technology of the spheroidal graphite cast iron and the copper rod.

The invention discloses a hot rolling process for a soft-state aluminum alloy for anodic oxidation. The hot rolling process comprises the following steps that 1, homogenized heat preservation is conducted on a soft-state aluminum alloy plate ingot for 8 hours at the temperature of 450 DEG C; 2, after homogenization is completed, rolling is conducted at the temperature of 410-430 DEG C on the basis of the allocation principle of the equal rolling reduction amount; 3, when hot rolling is conducted to the extent that the temperature of the plate ingot reaches 350-370 DEG C, small-reduction rolling with the reduction rate being 7% is conducted once in the first place, and subsequently, super-reduction rolling with the reduction rate being 45% is conducted once; and 4, after treatment as specified in step 3 is completed, rolling is conducted continuously on the basis of the allocation principle of the equal rolling reduction amount, and the finishing rolling temperature is controlled within the range of 235-250 DEG C. By means of the method, molding capacity of a product machined through a common single-rack hot rolling mill can completely achieve the effect of a multi-rack hot rolling mill; the hot rolling process is wide in practicability and low in production difficulty, control difficulty and cost; the product is obvious in market competitiveness; and remarkable economic benefits are achieved.