32results about How to "Solve the problem of long-distance transportation" patented technology

The invention provides a movable lifting rotation type screw conveyer. The movable lifting rotation type screw conveyer comprises a screw conveyer body, a rotation supporting structure, a lifting platform and a traveling trolley, wherein the screw conveyer body is provided with a storage chamber and positioned above the rotation supporting structure, and the lifting platform is arranged below the rotation supporting structure and positioned on the traveling trolley. The movable lifting rotation type screw conveyer is convenient to move and adjustable in conveying height and position.

The invention discloses an air spray explosion type soil deep scarification and deep fertilization device. The air spray explosion type soil deep scarification and deep fertilization device comprises a compressed air generation device, an airflow spray explosion and energy storage device and a scarification and fertilization gun; the airflow spray explosion and energy storage device is communicated with the compressed air generation device in an on / off manner, is used for storing compressed air and can spray and explode in a high pressure to generate spraying airflow; the scarification and fertilization gun is communicated with the airflow spray explosion and energy storage device and is inserted into the underground to guide the high-pressure spraying airflow into the soil; the air spray explosion type soil deep scarification and deep fertilization device further comprises a fertilizer pumping and transporting device; the fertilizer pumping and transporting device is communicated with the scarification and fertilization gun in the on / off manner, and the spraying airflow entering in the scarification and fertilization gun generates negative pressure for the fertilizer to absorb the fertilizer when the fertilizer pumping and transporting device is communicated with the scarification and fertilization gun. The air spray explosion type soil deep scarification and deep fertilization device solves the problems of deep scarification and deep fertilization of the oil and long-distance transportation of powdery fertilizer, is suitable for large-scale cultivation of plains, and is also suitable for dispersed plots such as mountainous areas and hills; furthermore, the powdery fertilizer conveying system is convenient to move; soil compaction is avoided; big transportation amount is achieved; the deep scarification system has low requirement on power, is small in volume, light in weight and low compaction for soil, and can enable fertilizer powder to be mixed with soil efficiently.

The invention provides a slurry preparation method of a novel ultra-fine coal water slurry, comprising the preparation steps of a. crushing the raw coal till the granularity is less than 0.5mm, b. carrying out a first floating selection disposal to the crushed raw coal powder, c. wet grinning the approved coal grains in the first floating selection in a ball grinding machine by adding water, d. carrying out a secondary fine floating selection disposal of the coal water slurry after the wet grinding, e. grinding the coal slurry which has been disposed by the fine floating selection with sands so as to gain the ultra-fine coal slurry with the granularity less than 5 Mum, f. carrying out the swirling flow selection of the ultra-fine coal slurry with the granularity less than 5 micron meters,and further carrying out desulfurization and ash removal by utilizing the centrifugal separation principle, carrying out a vacuum pressing filtration disposal to the ultra-fine coal water slurry so as to form a solid coal water slurry. The slurry preparation method of the novel ultra-fine coal water slurry can reduce a plurality of electricity consumption, gains ultra-fine coal water slurry with ultra-low ash and low sulphur, and meets the requirement of the replacement of fuel with the coal water slurry.

The invention relates to the field of vegetative propagation of plants, provides a plant cutting wood preservation method for an approximate seedbed according to the idea of simulating ecological conditions of a plant cutting seedbed, and particularly relates to a preservation method of the activity of lithocarpus polysachyus rehd cutting woods. The preservation method comprises the following steps of (1) preparing preservation mud, and cutting the lithocarpus polysachyus rehd cutting woods; (2) binding the lithocarpus polysachyus rehd cutting woods into a bundle according to the morphological requirements that the upper and lower ends are consistent and the lower ends are tidy; and (3) plugging the bundled lithocarpus polysachyus rehd cutting woods into the preservation mud through the morphological lower ends, preserving the moisture, and placing at a shady place for preservation, wherein the preservation mud is prepared from a rooting powder solution and clay. The cutting survival rate of the lithocarpus polysachyus rehd cutting woods which are preserved based on the preservation method disclosed by the invention for 24 hours or longer can reach 90 percent or above, but the cutting survival rate of the lithocarpus polysachyus rehd cutting woods which are preserved based on a conventional method for 2 hours is less than 60 percent.

The invention relates to a garbage horizontal long-distance pushing device capable of automatic cleaning in the whole process, which includes a garbage receiving pipe, on which a garbage inlet and a cleaning robot are arranged, and also includes a multi-stage pusher and an ejector, an outlet of the garbage receiving pipe and a first-stage pusher The inlet is connected, and the outlet of the last stage pusher is connected with the inlet of the ejector. Each stage of pusher and ejector includes a shell and a folding push mechanism. There is a slider on the rail, the slider is connected with the suspended mobile device, and the first driver is arranged on it. The non-output shaft end of the first driver is connected with the middle part of the suspended mobile device through a rotating shaft, and the output shaft is connected to the transition through another rotating shaft. One end of the plate is connected, the other end of the transition plate is fixedly connected with one end of the folded plate, and one end of them is connected with the front end of the suspended mobile device through the other two rotating shafts, and the second driver is provided on the fixed beam of the slide rail. It can realize the whole process of automatic cleaning and is suitable for long-distance transportation.

The invention provides a self-energy-supply expressway traffic and roadbed modulus monitoring system and a monitoring method. The system comprises a piezoelectric sensor, a weighing device, an auxiliary unit and a computer terminal; the piezoelectric sensor and the weighing device are buried in an expressway roadbed along an expressway; the auxiliary unit is arranged beside the expressway; the weighing device is used for monitoring the weight of an automobile; the piezoelectric sensor is used for monitoring the speed of the automobile; and finally, the modulus of the roadbed is inversely calculated through the weight and speed of the automobile and the voltage peak of the piezoelectric sensor, and the purpose of detecting the modulus of the expressway roadbed is achieved. The piezoelectricsensor has a mechanical-electrical coupling characteristic, collected vibration energy can be stored in an energy storage capacitor at the same time, and the energy storage capacitor can be used forproviding power for the weighing device and other parts. By means of the self-energy-supply expressway traffic and roadbed modulus monitoring system and the monitoring method, vibration generated by the automobile on the expressway is used, the weight and speed of the automobile and the modulus of the roadbed can be monitored at the same time in a self-power-supply manner, safety pre-warning is provided for the expressway, and construction of the Internet of Things of the expressway is promoted.

The invention discloses a process device and a process method for recovering cold energy from LNG prepared from coke oven gas. The device comprises a dehydrogenation tower, an LNG reflux pump, a coaxial compression expander, a liquid separation tank and a heat exchanger, wherein the heat exchanger is sequentially connected with the dehydrogenation tower, the LNG reflux pump, the coaxial compression expander and the liquid separation tank; and a feed port at the top of the dehydrogenation tower is sequentially connected with the heat exchanger and the LNG reflux pump. The process device and the process method disclosed by the invention have the beneficial effects that hydrogen-rich gas cold energy recycling and expander refrigeration are adopted to recycle the cold energy from a device for LNG prepared from the coke oven gas; part of the cold energy is provided for LNG and a mixed refrigerant by use of low-temperature hydrogen-rich gas removed from the coke oven gas; and meanwhile, reheated hydrogen-rich gas enters the heat exchanger again by throttling expansion to provide the cold energy until the hydrogen-rich gas enters the coaxial compression expander at normal temperature. The process device is simple in flow; the corresponding heat exchanger is only additionally provided with two flow channels, and the simplicity in operation is realized, power consumption of a refrigerant compressor unit can be greatly saved; and the hydrogen-rich gas can be flexibly disposed according to the downstream demand.

The invention discloses a method for constructing a concrete structure of a subway contact passage through a ground pouring and freezing method. The method for constructing the concrete structure of the subway contact passage comprises the following steps that (1) drilling is conducted from the ground above the contact passage toward the interior of the contact passage; (2) concrete sliding tubesare placed downwards in drilled drill holes in the step (1); (3) after a frozen wall meets the excavation condition of the contact passage, earth excavation of the contact passage is conducted in a subway tunnel, and protective treatment is conducted on the concrete sliding tubes after the concrete sliding tubes are dug out; and (4) the concrete structure of a bottom plate (5) of the contact passage is poured by utilizing the concrete sliding tube located in the center of the contact passage, and the side wall concrete structure and the arch crown concrete structure concrete structure are poured by utilizing the concrete sliding tubes located in the flare opening position. According to the method for constructing the concrete structure of the subway contact passage through the ground pouring and freezing method, compact pouring of concrete on an arch crown of the contact passage can be achieved, opening or holes in the concrete on the arch crown of the contact passage can be effectively prevented, it is effectively ensured that the thickness of the concrete structure of the contact passage meets the design requirement, and hidden dangers caused by the quality of the concrete structure of the contact passage are eliminated.