33 results about "Geosyncline" patented technology

The invention discloses a method for producing a compound fertilizer containing nitrate nitrogen potassium sulphate. The method is achieved by the following steps: (1) preparing ammonium nitrate phosphorus slurry, namely dissolving ammonium nitrate phosphorus by using condensate water at 50-80 DEG C or compound fertilizer exhaust washing liquor; (2) preparing a mixed acid, namely enabling a sulfuric acid solution to react with potassium chloride in a transfer tank to generate potassium hydrogen sulfate, overflowing KHSO4 generated by reaction and excessive H2SO4 solution to a mixed acid geosyncline, and mixing with a phosphoric acid solution which is metered by an ultraphosphate flow meter to generate the mixed acid; (3) carrying out neutral reaction on gas ammonia and mixed acid in a reactor, so as to obtain neutral slurry; (4) mixing the neutral slurry with the ammonium nitrate phosphorus slurry in a feeder trough to form mixed slurry; and (5) spraying the mixed slurry into a pelletizer, so as to obtain the compound fertilizer containing nitrate nitrogen potassium sulphate. The usage of steam is saved, the compound fertilizer particle is good in smoothness, and uniform in granularity, the whiteness is improved, the moisture is well controlled, the utilization rate of the fertilizer is improved, the soil contamination is reduced, and healthy growth of the plant is promoted.

The invention discloses an assembled dedicated pedestrian street, a pavement method of the pedestrian street and a design method of the pedestrian street, and aims at solving the problem that historical sidewalks in towns and countries, especially streets in old towns, are seriously damaged. The assembled dedicated pedestrian street comprises a street body, matched equipment and a drainage system in an assembling manner, wherein inside a geosynclines, a glass fiber reinforced plastics grid plate bottom and glass fiber reinforced plastics square tube curbs at two sides form a bottom plate to form a bottom plate groove; a medium sand layer, a common permeable brick roadbed, a permeable rubber rick and a rubber blind road brick pavement are arranged inside the groove to form the street body; inner and outer outfalls are formed at two sides of each curb; an inner opening is attached to the pavement; an outer opening is connected with an underground glass fiber reinforced plastics drainage pipeline through a branch pipe to form the drainage system. Table and chair facilities can be manufactured into artware to be fixed on the bottom plate. The pedestrian street is not overhauled, change old parts with new parts, and broadened or dismantled according to the requirements, and all components can be recovered and processed to be recycled, so that the life cycle cost is low. The assembled dedicated pedestrian street can be arranged on the outer surfaces of residential and commercial buildings at the sides of urban and rural public transport roads and highways, streets, parks, fields and other pedestrian floors in a paving manner.

The invention discloses a mining TBM chamber bottom plate hardening method. The method comprises the steps that an originating chamber is made into a circular chamber slightly larger than a cutter head through spray modeling; geosyncline is dug along a first assembly chamber from at least 2.5 m backward from the first assembly chamber to the tunneling working surface of the originating chamber till reaching the hard bottom; multiple groups of column nest tubes are installed in the dug geosyncline, three mutually parallel steel rails are embedded in the middle of each group of the column nest tubes, and corresponding steel rails on the multiple groups of the column nest tubes are connected in sequence; two rails are laid in a second assembly chamber and a third assembly chamber in sequence, the two rails are the first rail and the second rail, concrete pouring is conducted on a rail roadbed and the geosyncline from the second assembly chamber, whole-section floor leveling is conducted on the three assembly chambers, and floors are tangent to the lowest point of the originating chamber after forming. According to the method, the strength of a roadway bottom plate can be effectively improved, the requirements of the overall weight obtained after a shield tunneling machine is supported for assembling for surrounding rock can be met, and the method is simple and applicable.

The invention discloses a stacking method of crude salt. The stacking method of the crude salt comprises the following steps: (1) a totally closed salt warehouse is built; (2) the crude salt is discharged into a geosyncline, and the crude salt in the geosyncline is transferred to a salt transport arm of a stacker reclaimer to store by a crude salt feeding system; (3) round material stacking in the salt warehouse enters into an underground transport system by the stacker reclaimer through a lower salt groove, and then is transported to a procedure to be used by the underground transport system. The stacking method of the crude salt greatly reduces the number of people and working intensity of workers, greatly reduces pollution possibility of the crude salt due to the fact that a totally closed structure is adopted in the salt warehouse, reduces crude salt loss caused by external environment, and simultaneously prevents from polluting the external environment.

The invention provides a high-nitrogen low-oxygen air control grain storage technology, which comprises the steps of: A) using a mobile nitrogen generation unit to produce high purity nitrogen; and B) transporting high purity nitrogen into a granary. The granary bottom is provided with a circulation geosyncline, an air inlet pipe outside the granary is provided with a pressure regulating valve and is communicated with the circulation geosynclines, and the granary top is equipped with an air outlet and a detection port. The step B) specifically includes: B1) transporting high purity nitrogen into a mobile refrigeration dryer and cooling the nitrogen to a temperature equal to that inside the granary; B2) leading the high purity nitrogen into the granary through the circulation geosyncline, closing the air outlet, and detecting the pressure in the granary through the detection port; B3) when the air pressure in the granary is higher than that outside the granary by 300Pa, opening the air outlet; B4) adjusting the nitrogen transport pressure to 200-600Pa, and maintaining the pressure in the granary at 300Pa till the oxygen concentration in the granary falls to 5% ; and B5) closing the air outlet and pressure regulating valve, and removing equipment. The technology provided in the invention has the advantages of fast reduction of oxygen and low energy consumption, thus being very suitable for large shallow silos.