30results about How to "Small amount of construction work" patented technology

The invention discloses a three gorge reservoir region slope cropland bank building method and a slope cropland bank. The slop cropland bank is formed by an upper layer and a lower layer. The lower layer is a hard material layer and the upper layer is a soil layer. The hard material layer is formed by piling up strip rock (or rock blocks and hollow bricks) and natural seams are formed; and short shrub and herbaceous economic plants are planted at two sides of the top of the soil layer and the middle portion is used as a walking path. Rough treatment is conducted on an upper surface of the hard material layer in touch with the soil layer, a plurality of grooves are formed at intervals in the upper surface and the soil layer is embedded in the grooves partly. A plurality of water drainage holes are formed in a wall face of the hard material layer along different height. According to the three gorge reservoir region slope cropland bank building method and the slope cropland bank, investment is small, construction is simple, repair is easy and the conditions that a single soil bank is unstable, a single rock bank is high in cost and the like can be obviously improved. The plants planted on the soil layer is beneficial for fixing soil and improving fertility, the plants are combined with the bank so that double adjusting functions are achieved, water and soil loss control effect is notable and meanwhile economic benefit is generated.

The invention discloses a mining method for high-section filling with downward layered horizontal approach, which specifically includes the division of ore blocks, mining and cutting, back mining, stope ventilation, stope filling, and so on, mining the entire section Ore body; the invention increases the section height, the number of mining floors and the volume of section mining, prolongs the service life of the panel, and solves the problem of panel excavation imbalance. Six sections, reducing the construction of sections, and reducing the construction volume of the middle section by about 3500m / 72000m 3 , which greatly saves the investment in mine engineering construction. After the section height is increased, the service life of the section is extended, the contradiction of section mining imbalance is alleviated, and the pressure of section construction is reduced.

The invention discloses an electrical equipment detection line and detection method based on an automatic guidance carrier vehicle. The electrical equipment detection line comprises a testing site and at least one automatic guidance carrier vehicle. A plurality of testing stations and a central control room are arranged inside the testing site. Different testing instruments are arranged at the testing stations. A center control computer is arranged inside the central control room. The testing instruments at the testing stations are connected with the center control computer in a communication mode. The automatic guidance carrier vehicle carries an electrical equipment sample used for tests and runs among the testing stations according to a certain test procedure under the control of the center control computer inside the central control room, all tests are conducted on the electrical equipment sample carried by the automatic guidance carrier vehicle, and test data obtained by the testing instruments at the testing stations are transmitted back to the center control computer inside the central control room in a communication mode to be collected. Compared with a traditional electrical equipment testing method, the electrical equipment detection line and detection method have the advantages that detection efficiency is higher, and labor intensity of test personnel is lower.

The invention discloses a coal-washing wastewater solid-liquid separation system and method, and belongs to the technical field of industrial wastewater treatment. A reagent dissolving box and a reagent box of the system are connected, the reagent box is connected with a flocculate stirring box through a metering pump, a wastewater pool is connected with the flocculate stirring box through a water pump, the flocculate stirring box is connected with a coal-washing solid-liquid separation machine, and the coal-washing solid-liquid separation machine is connected with a filtrate settling pond. According to the coal-washing wastewater solid-liquid separation system, the construction work amount is small, the construction period is short, the technique is simple and continuous in the treatment process, the solid-liquid separation can be rapidly conducted on the coal-washing wastewater, the separated clear liquid can be directly used in production after being settled, the technological process is simplified, and water is effectively saved.

The invention discloses a method suitable for conducting dry heaping on fine grained tailings on a flat ground or beside a mountain. The mode that dry heaping damming is conducted on the four sides of the flat ground and the tailings are discharged in the middle is adopted, or the mode that dry heaping damming is conducted on three sides beside the mountain and the tailings are discharged in the middle is selected, each side of a tailing dry heaping field is divided into 4-10 layers of space areas, and each layer of space area is 80-200 m in length and 40-60 m in width L. An outside foundation blocking dam (1) and an inside blocking dam (4) are built in a heaping mode on the two sides of the first layer of space area correspondingly. Outside tailing blocking dams (2) and inside blocking dams (4) are built in a heaping mode on the two sides of the other layers of space areas correspondingly. Water-permeability earthwork materials (5) are paved on each layer of space area. In addition, tailing slurry is concentrated to be 60+ / -2% in weight concentration, a tailing curing agent is added to the tailing slurry, the obtained tailing slurry is discharged into the space areas paved with the water-permeability earthwork materials (5), and heaping is conducted by layer and area. Through the method, the distance between the heaping field and a dressing plant is shortened, the tailing conveying cost is reduced, tailing dam building investment and time are reduced, and the adaptability is high.