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49results about How to "Ensure stable production" patented technology

Hydrogen production system based on AEL and PEM water electrolysis and situation control method

The invention discloses a hydrogen production system based on AEL and PEM water electrolysis and a situation control method. According to the hydrogen production system, an AEL water electrolysis tank and a PEM water electrolysis tank are matched with each other and highly integrated in a water electrolysis hydrogen production system, and anaccident early warning monitoring method based on situation awareness is provided in consideration of a related complex management and control system, and is different from the lacking of situation awareness early warning function for detection information in an existing water electrolysis hydrogen production system. According to the invention, an optimal working mode of a hydrogen production system is evaluated based on accident entropy, the situation awareness object category is predicted after the situation awareness information is acquired, and then the increment change of the working mode of the situation awareness object to the accident entropy of the system is evaluated so as to provide the increment direction of the accident situation for accident early warning, so that the system can autonomously obtain a control decision through situation awareness information analysis, adjustment is carried out through different pieces of situation awareness information, and optimal working situation optimization of the system is achieved.
Owner:宝武清洁能源有限公司 +1

Method for controlling full-automatic optimization burning furnace of blast furnace coal injection system flue gas furnace

The invention relates to a method for controlling a full-automatic optimization burning furnace of a blast furnace coal injection system flue gas furnace. The method comprises a step S1 of establishing a model: respectively establishing a dry air temperature control model, a flue gas furnace hearth pressure control model and a dry air oxygen content control model; a step S2 of performing parameter adjustment: adjusting medium temperature, pressure, flow, CO concentration and O2 concentration through the three models in the step S1, and respectively controlling dry air temperature, flue gas furnace hearth pressure and dry air oxygen content. The method has the advantages that the flue gas furnace runs under an optimum working condition through full-automatic burning furnace optimization and precise control over the flue gas furnace, index fluctuation in the flue gas furnace burning and control system is high, it is guaranteed that a system performs production stably, and a negative impact caused by manual operation is eliminated; in addition, the method not only can improve automatic control level, but also can greatly reduce operators' labor intensity and improve production efficiency.
Owner:CISDI ENG CO LTD

Preparation method of water used for oilfield flooding, water flooding and water gathering

The invention belongs to the technical field of oil field development and relates to a preparation method of water used for oilfield flooding, water flooding and water gathering. Firstly seawater is subjected to sterilization and algae killing and then filtered by virtue of an electrolysis chlorine producing device and then is subjected to heat exchange by virtue of a primary preheater and a secondary preheater, then the seawater is conveyed into an ultrafiltration device to be filtered, so as to obtain ultrafiltration producing water; one part of the ultrafiltration producing water is conveyed into a nanofiltration device by virtue of a high pressure pump, the rest of the ultrafiltration producing water enters into an energy recycling device, is subjected to energy exchange together with concentrated water of the nanofiltration device and then is conveyed into the nanofiltration device; then nanofiltration producing water is subjected to heat exchange together with produced water by virtue of a heat exchanger; and the nanofiltration producing water is deoxidized and then is directly taken as injected water to enter into a water injection system or a matching and gathering device, polyacrylamide is added to prepare a polymer mother solution, and finally the polymer mother solution is diluted and injected underground to displace oil. The preparation method provided by the invention is easy to operate, low in cost, low in energy consumption, low in oxygen corrosion rate and beneficial to popularization of waterflooding and polymer flooding techniques.
Owner:OCEAN UNIV OF CHINA

Method for ammonia removal of coke oven gas

The invention discloses a method for ammonia removal of a coke oven gas. According to the method, on the basis of the existing production process method, residual ammonia water is used for cooling ammonia distillation wastewater, which is generated by an ammonia still, to 55-65 DEG C in a first heat exchanger, and then the cooled ammonia distillation wastewater is used as new water delivered into a saturator to prepare a mother solution. Because the temperature of the added ammonia distillation wastewater is close to that of the mother solution in the saturator, the temperature of the mother solution cannot be greatly influenced after the ammonia distillation wastewater is added into the mother solution, and the temperature of the mother solution always fluctuates up and down in a reasonable range of set values, thereby ensuring the normal and stable production of an ammonia removal process of the coke oven gas; and the ammonia distillation wastewater is used for replacing middle-temperature water or low-temperature water and the like to serve as the new water supplemented into the mother solution, so that the new water consumption of the ammonia removal process is reduced, and the repeated utilization of the ammonia distillation wastewater is realized at the same time.
Owner:SHANDONG IRON & STEEL CO LTD

Method for improving Z-direction performance of Q390E thick plate with thickness of 50-80mm

The invention discloses a method for improving Z-direction performance of a Q390E thick plate with the thickness of 50-80mm. The plate comprises the following chemical components, by weight, 0.07-0.10% of C, 1.4-1.50 % of Mn, 0.15-0.25% of Si, less than or equal to 0.005% of S, less than or equal to 0.015% of P, 0.020-0.04% of Als, 0.025-0.035% of Nb, 0.035-0.045% of Ti, less than or equal to 20PPM of T[O], less than or equal to 50PPM of N and less than or equal to 1.5PPM of H. The thickness of the plate ranges from 50-80mm. The whole process flow comprises the steps of molten iron pre-desulfurization treatment, converter treatment, LF and RH refining, 250mm thick plate blank treatment, heating, controlled rolling and controlled cooling and stack cooling. A converter tapping slag washing process is adopted, high-alkalinity synthetic slag is used, and the synthetic slag comprises the components, more than or equal to 60% and less than or equal to 70% of CaO, 15-20% of BaO, more than 0 and less than or equal to 3.0% of SiO2, more than 0 and less than or equal to 4.5% of Al2O3, more than 2.0% and less than or equal to 4.1% of Na2O, less than or equal to 7.5% of CaF2 and less than or equal to 4% of MgO. Casting powder used in the continuous casting process comprises the specific chemical components, by weight, 4.1-6.5% of C, 25-30% of CaO, 27-32% of SiO2, 5-10% of Na2O, 7-10% of TiC, 3-6% of TiO2, 5-8% of F, 7-15% of B2O3, less than or equal to 3% of Al2O3, 1-1.5% of MgO; less than or equal to 3% of MnO, less than 3% of Fe2O3; and less than 0.5% of H2O.
Owner:XINJIANG BAYI IRON & STEEL

Production method for selenium-enriched rice

The invention relates to a production method for selenium-enriched rice. The production method comprises the following steps: preparing a selenium-enriched organic liquid fertilizer; improving a ricefield when the rice field overwinters; applying the selenium-enriched organic liquid fertilizer to rice from breeding, raising rice seedling and planting processes for management. In the embodiment process, the rice field is improved by means of a biofertilizer formed by combining crop straws, animal feces and chitin and the selenium-enriched organic liquid fertilizer composed of organic selenium,organic matters and chitin when the rice field overwinters. The soil of a used land is conditioned to be neutral with biological bacterial manure, the improving effect of the soil is obvious, and then the selenium-enriched organic liquid fertilizer is sprayed to the land, so that a selenium-free plot is changed to selenium-enriched soil within a short time, and therefore, the phenomenon that a natural high-selenium soil resource at present is extremely scanty is overcome effectively, and selenium-enriched agricultural products are developed quickly. Meanwhile, the prepared selenium-enriched organic liquid fertilizer is low in cost, high in selenium and organic matters and obvious in using effect.
Owner:田东县合乐源农作物农民专业合作社

Production method of carbon

The invention discloses a production method of carbon, and relates to the improvement of a technique for a carbon material production process. The production method comprises the following steps of: calcinating, crushing and screening, material batching and blending in a raw material storage bay, material conveying implemented by using an integrated screw conveyor, kneading, molding and roasting. The production method is characterized in that (1) a heating device is added on the outer wall of the raw material storage bay for material batching and blending, and used for carrying out heating and heat preservation on material batching and blending; (2) a heating device is arranged on the outer wall of the integrated screw conveyor for material conveying, and used for carrying out heating and heat preservation on material batching and blending. According to the production method of carbon disclosed by the invention, aiming at the problem that in the existing production of carbon products, the preheating temperature of dry materials is too low, and the kneading effect is not ideal, the heating device is added on the outside of the raw material storage bay or the integrated screw conveyor so as to raise the temperature of dry materials in the raw material storage bay or the integrated screw conveyor, in such a way, the temperature of dry materials meets technological requirements, the occurrence of a phenomenon that a paste material is kneaded non-uniformly is eliminated, and a situation that the production of carbon products is stable and the quality of carbon products reaches the standard is ensured.
Owner:GUIZHOU BRANCH CHINA ALUMINUM IND

Constant-flow feeding device

The invention relates to a constant-flow feeding device which is characterized by comprising a concreted ring fixedly connected with a bunker metallic ore chute, a hopper body arranged below the bunker metallic ore chute, a group of lugs uniformly arranged on the outer surface of the upper part of the hopper body, a backing ring arranged below the group of lugs, buffering mechanisms respectively arranged between the upper surface of the backing ring and the lugs, a group of upper connecting plates which are uniformly arranged on the upper surface of the backing ring and crossly arranged together with the buffering mechanisms, a group of upper connecting rods respectively connected with the upper connecting plates and the concreted ring, a group of lower connecting plates uniformly arranged on the lower surface of the backing ring, an annular flange arranged below the hopper body, a circumferential protective plate arranged on the upper surface of the annular flange, a lower connecting rod for connecting the circumferential protective plate with the lower connecting plates, and a group of vibration mechanisms respectively arranged at outer surfaces at two sides in the middle of the hopper body, wherein the bottom of the bunker metallic ore chute is inserted into the hopper body; and the annular flange is connected with a feeding apparatus through a bolt. The constant-flow feeding device has the advantages that the discharge is smooth, the material flow is stable and uniform, and the overhauling is convenient.
Owner:NORTHERN ENG & TECH CORP MCC

Online cleaning device for copper bar chain of tobacco cutter

The invention discloses a tobacco cutter copper bar chain online cleaning device which is characterized in that a copper bar chain body is located in a tobacco cutter body, the tobacco cutter body is provided with a feeding port and a discharging port, the tobacco cutter body is a box body, and the bottom of the tobacco cutter body is provided with a cleaning assembly and a driving assembly which are located below the copper bar chain body; the cleaning assembly is opposite to the lower conveying face of the copper bar chain body and comprises a first containing plate and three sets of cleaning ends located on the plane of the first containing plate which are arranged along the lower conveying face, and the three sets of cleaning ends conduct three-level cleaning on the lower conveying face of the copper bar chain body. The driving assembly comprises an eccentric wheel located on the front side face of the first containing plate and a first telescopic rod located on the rear side face of the first containing plate, and the first containing plate reciprocates perpendicular to the lower conveying face under clamping of the driving assembly. By means of the device, sequential three-level sweeping and transverse reciprocating motion are achieved, the copper bar chain body is thoroughly swept, blocking is prevented, and production operation is guaranteed.
Owner:HONGYUN HONGHE TOBACCO (GRP) CO LTD

Automatic foam discharging ball filling device and method

The invention discloses an automatic foam scrubbing ball filling device which comprises a storage mechanism, a conveying mechanism and a waste gas treatment device. The storage mechanism comprises a stock bin and a storage chamber which are communicated through a feeding pipeline, and the storage chamber is located above the stock bin. The conveying mechanism comprises a dewatering chamber communicated with the storage chamber and an air filtering chamber communicated with the dewatering chamber; the input end of the gas filtering chamber is communicated with the gas production tree; the gas filtering chamber is divided into two parts through a filtering unit arranged in the gas filtering chamber, the part below the gas filtering unit is communicated with a waste gas treater for absorbing waste gas in natural gas through a first exhaust pipeline, and the part above the gas filtering unit is communicated with a foam discharging ball collecting chamber through a discharging pipeline; the material storage chamber, the dehydration chamber and the air filtering chamber are respectively communicated with a centralized positive pressure air supply device through positive pressure pipelines; and the storage chamber is communicated with a vacuum generator through a vacuum pipeline. According to the device, automatic feeding and discharging of foam discharging balls are conducted through the air pressure difference, waste gas can be separated and treated at the same time, and the natural gas extraction efficiency and the extraction work stability can be improved.
Owner:SICHUAN UNIV
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