54results about How to "No cost input" patented technology

The invention discloses a process for simultaneously producing machine coke and molded coke by use of a stamp-charging coke oven. The process comprises the following steps: a, tamping the charged mixing molded coal in the vertical direction in a coal charging car by use of a tamping hammer, thereby obtaining a mixing molded coal cake of which the upper surface is of a slope surface shape; b, pushing the mixing molded coal cake of which the upper surface is of the slope surface shape into a coking chamber, forming the structure of a sloping hearth furnace by use of the mixing molded coal cake and the inner wall of the coking chamber, charging the molded coal into the coking chamber from the top of the coking chamber and stacking the molded coal on the mixing molded coal cake; and c, when the coke is mature, opening a coke side furnace door to one side so that the molded coal coke rolls out of the coking chamber under the action of gravity and by use of the gradient of the upper surface of the mixing molded coal cake coke, and after the molded coal coke rolls out completely, pushing out the bottom mixing molded coal cake coke by use of a coke pusher. The process is used for simultaneously producing the machine coke and the molded coke by use of the traditional stamp-charging coke oven without modification; as a result, the product types of a coking plant are increased and a new idea is provided for the modification of the traditional coking plant.

A new method ensuring outdoor grapes to survive winter is characterized by comprising technology processes of timely off-shelf trimming, timely burying soil, timely irrigating, adjusting soil thickness, arranging cold-preventing objects and plastic films, and removing weeds and preventing coldness. By the use of the new method, deficiencies of grape damage or death due to coldness due to improper management of farmers can be solved; and the new method is especially suitable for outdoor grape farmers in northern parts.

A novel method for controlling a chive downy mildew disease includes the processes of proper land selection, disease-free stock selection, planting in an optimum period, field cleaning, strict seed soaking in a chemical, strengthened management, application of a sufficient organic fertilizer, and chemical spraying. The method can overcome the defects of chive downy mildew disease control in the prior art, and can be applied to north planting.

The invention belongs to the technical field of chemical technologies, and particularly relates to a preparation method for homoserine lactone hydrochloride. Solid methionine and solid chloroacetic acid are mixed and ground to obtain the product. According to the homoserine lactone hydrochloride by using the method, a solid method is adopted in the reaction, no waste water is discharged, fewer side reactions are generated, and the yield is high. The reaction processes are simple, fewer devices are used, and the investment is low.

The invention relates to a converter second-stage venturi throat regulation method. According to the converter second-stage venturi throat regulation method, when iron and waste steel are added, the RD valve opening degree is controlled at 40-50%; before the oxygen blowing amount achieves 20%, the RD valve opening degree is controlled at 50-60% at a silicon-manganese oxidation stage; when the oxygen blowing amount achieves 20-75%, the RD valve opening degree is controlled at more than 90% at a carbon-oxygen intense oxidation stage; 4) after the oxygen blowing amount achieves 75%, the RD valveopening degree is controlled at 65-75%; after a sublance test process is started, the RD valve opening degree is controlled at 50-60%; and after the oxygen blowing is ended, the RD valve opening degree is controlled at 40-50%. According to the present invention, the opening degree of the second-stage venturi throat is automatically regulated according to the carbon-oxygen reaction and the flue gaschange law during the converter smelting, and under the premise of no additional arrangement of other equipment, by reducing the air introduction at the early stage and the late stage of the smeltingand the flue gas overflow burning at the middle stage, the effects of dust removing improving, coal gas recovery time prolonging and coal gas recovery improving can be achieved.

Provided is a method for preventing and controlling lawn mites pest. The special point comprises processes of detecting leaf surfaces and leaf backs in time, removing a withered grass layer, insect-plague branches, and weeds in a lawn field, and burning the withered grass layer, the insect-plague branches, and the weeds in a centralized manner, watering for sprouting on the lawn filed in time, and when insect pest is serious, protecting natural enemies. Using the above technical scheme, a new method for preventing and controlling lawn mites pest can be realized. The method is simple in operation and good in effect, and has no additional cost investment, and can effectively prevent and control occurrence of mites pest.

Provided is a new method for preventing eggplants from bending. The special point comprises carding branches and leaves in time, controlling at preference temperature, providing sufficient plant nutrition, and controlling pesticides, and other process flows. The method solves defects of an existing fruit bending prevention technology in an eggplant planting process, and the method is especially suitable to be used in planting eggplants in north.

The method for preprocessing Asiatic wormwood to preserve the color in combination with quick-freezing and unfreezing for keeping quality belongs to the technical field of fruit-vegetable food storage and processing. The process of the method is as follows: Asiatic wormwood with tender leaves and stalks is chosen, washed and then added with compound enzyme inhibitor, and by regulating the components, content and material-to-solution ratio of the enzyme inhibitor, the activity of polyphenol oxidase in the Asiatic wormwood is inhibited; the Asiatic wormwood is then blanched in boiled water, thepH value of the solution is regulated, the blanching time is adjusted, and while substances with bed flavor, such as absinthin, are completely removed, the loss of the Asiatic wormwood pigment is reduced; after cooling, metal ion color-preserving processing is carried out, and the dosage of metal ions and the pH value of color preservative are determined; after being sufficiently blanched, the Asiatic wormwood is pulped and filtered, vacuum packages are adopted for precooling and medium-frequency ultrasonic quick-freezing, and the Asiatic wormwood is refrigerated under the condition of negative 18 DEG C, and is ultrasonically unfrozen when being applied later. High-quality Asiatic wormwood product is produced by the method, the method is economic and practical, the cost investment is low,the process is simple and easy to implement, and the method can provide technical support for the industrialized production of Asiatic wormwood.

The invention relates to an iterative calculation method for ship trim, belonging to the technical field of ship operation process calculation methods. The technical scheme of the present invention is as follows: (1) before the ship operates, the ship parameters are entered into the system; (2) during the operation, the shore machine loads and unloads goods at different positions in each cabin, and the PLC can read the real-time position of the cart mechanism to obtain x_n, read Taking the flow data of the belt scale, P_n can be obtained, and the drainage time t_B can be automatically calculated. Through successive iterations, the draft difference t can be calculated in real time. The beneficial effects of the present invention are: through the data entry of the ship before the operation, the data collection of the belt scale and the cart encoder during the operation, the working relationship between the ship and the shore machine is established, so that the shore machine can grasp the trim situation of the ship in real time. Without any hardware cost investment, the calculation speed is fast and the applicability is strong.

The invention discloses a steel sheet pile cofferdam supporting and anti-collision conversion structure and a construction method. A first concrete ring beam, a second concrete ring beam and a third concrete ring beam are poured on backfill sand of a first backfill sand stone layer and backfill sand of a second backfill sand stone layer, sufficient supporting force is provided for a steel sheet pile cofferdam through the strength of the backfill sand, the strength of the first concrete ring beam, the strength of the second concrete ring beam, the strength of the third concrete ring beam and the micro-expansibility of concrete, after a first inner supporting structure, a second inner supporting structure and a third inner supporting structure of the steel sheet pile cofferdam are sequentially detached according to the requirements of a first bearing platform, a second bearing platform and a bridge pier in the poured steel sheet pile cofferdam, and the steel sheet pile cofferdam is safe and reliable; and meanwhile, a clean and flat operation platform is created for subsequent poured bearing platform and bridge pier construction. After a main bridge is opened to traffic or the steel sheet pile cofferdam is detached, the first concrete ring beam, the second concrete ring beam and the third concrete ring beam form an anti-collision conversion ring beam, the anti-collision conversion ring beam is arranged, the situation that ships collide with the bearing platforms and the bridge piers due to misoperation or underwater objects can be effectively prevented, and the good anti-collision defense measure is free of cost input and can achieve a good additional effect.