35results about How to "With expansion" patented technology

The invention discloses a cant arm-chair which comprises two chair feet, chair strips transversely mounted at the tops of the chair feet and armrests mounted at two ends of the chair strips. The front end of an arm-chair face formed by the chair strips inclines toward space below a horizontal plane, and the cant arm-chair enables people to lean on more comfortably for a short rest, and is more convenient for old people or people having trouble in movement to stand up and sit down especially and more suitable for crowded places like buses, subways and downtowns.

The invention discloses artificial mudstone and a method for sealing and blocking oil-gas well casing tube outer cross-flow by using the artificial mudstone. The artificial mudstone is formed by film coated resin under the conditions that the temperature is 45 to 150 DEG C, the pressure is 2 to 5 MPa, and the acting time is not shorter than 1 hour; the film coated resin comprises the following ingredients in percentage by weight: 30 to 50 percent of polyvinyl alcohol water-absorbent expanding resin, 10 to 20 percent of rosin resin, 10 to 20 percent of phenolic resin, 5 to 10 percent of urea resin, 2 to 5 percent of methenamine and 10 to 30 percent of nanometer calcium carbonate. The method for sealing and blocking the oil-gas well casing tube outer cross-flow by using the artificial mudstone comprises the following steps that: (1) the nanometer calcium carbonate and carrying fluid are injected, and non-permeability sealing and blocking is formed; (2) activated water is injected; and (3) the film coated resin and the carrying fluid are injected, and the artificial mudstone is formed. The artificial mudstone and the method provided by the invention have the advantages that the effect of fast sealing and blocking well shaft annuluses of the oil-gas well casing tube outer cross-flow at the horizontal sections of a horizontal well in one step is achieved; the artificial mudstone has a long sealing and plugging lasting period, and is applicable to the well repair operation after the hydrajet fracturing modification of the horizontal well in petroleum extraction; and the construction success ratio of the later-stage horizontal well water blocking process can be favorably improved.

The invention discloses an ice cream with high expansion rate without food additives and a preparation method thereof. The ice cream is formed by mixing emulsified liquid phase A and solution phase B according to a weight ratio of 1:1~3, wherein the emulsified liquid phase A is composed of 20% to 40% of fat, 0.40% to 1.40% of whey protein powder, and the balance It is composed of water, and the solution phase B is composed of 14-21% of skimmed milk powder, 3-5% of soybean protein powder, 20-32% of white granulated sugar, and the balance is water. The invention adopts a two-phase method combined with high-pressure homogenization to prepare ice cream slurry, avoids potential safety hazards caused by improper use of additives, is natural and green, greatly saves production costs, and significantly improves ice cream processing using conventional methods without adding food additives When there are quality defects, the product has high expansion rate, good taste and formability, and reasonable nutritional mix. The content of each component is similar to that in conventional ice cream slurry. Other natural main ingredients, such as fruits, can be freely matched.

The invention discloses a shield end wellhead surrounding building foundation reinforcement structure, comprising a pipeline inside a wellhead foundation, wherein a concrete pouring layer is fixed between the wellhead foundation and the pipeline and a stuffing layer made from extruded polystyrene boards is arranged between the concrete pouring layer and the pipeline. The structure has the advantages that expansion after pouring of the concrete pouring layer is prevented through the arrangement of a buffer layer; the inner wall of the wellhead foundation is protected by the concrete pouring layer so that the wellhead foundation is prevented from tilting or cracking; fixing structures and the pipeline are arranged to protect the concrete pouring layer to prevent the same from collapsing, thereby keeping the overall structure stable, protecting the wellhead foundation, and preventing the foundation from tilting or cracking to affect people's life and buildings.

The invention discloses a flexible pulverized coal foam concrete and a preparation method thereof, relating to concrete. The main components of this concrete include: (by weight percentage) cement, 10-15; coal powder, 35-65; medium coarse sand, 20-45; water, 3-4.5; , 1~1.5. The method of using the concrete to block the wall of the coal seam roadway is either a shotcrete method, a lining concrete method, or a concrete curtain grouting method. The invention obtains materials locally, makes full use of the pulverized coal accumulated in the roadway drilled underground, reduces the transportation and construction costs of supporting materials, improves the efficiency and progress of coal mine excavation, and has little impact on the dilution of coal products; the structure is impermeable Good performance, good sealing and integrity; can be widely used in gas displacement coalbed methane roadway wall sealing and anti-seepage in coal mines, and complex rock formations or other dynamic pressure roadways with characteristics of softness, expansion, rheology, etc. Surrounding rock support.

The invention relates to an expansion and solidification type plugging agent which comprises the following components in parts by weight: 0.5-2 parts of a calcium sulphoaluminate expanding agent, 1-4 parts of polypropylene fibers, 0.1-1 part of a water adsorption expansion type polymer, 1-5 parts of super absorbent resin SAP, 2-6 parts of puffed starch, 2-6 parts of salt-resistant clay, 20-40 parts of calcium carbonate and 0.1-0.5 part of high viscosity polyanionic cellulose PAC-HV. The preparation method comprises the following steps: sequentially adding the components in parts by weight to a kneading machine by a conventional preparation method under normal temperature and pressure; uniformly mixing and stirring; and crushing to a particle product with the grain size of 0.01-0.5mm till being dried. The plugging agent provided by the invention has the characteristics of high expansion rate, viscous flow capacity, plugging capacity, strong salt-resistance, flowability, pumpability, good coagulability, simple process, safe and quick construction, long coagulability, wide source of raw materials, high plugging success rate and the like, and is widely applied to plugging processes of large pore paths, subterranean rivers and great Karst cave leakage strata in petroleum and geological drilling.

The invention discloses an inner sinking chamfering hole type feed granulator ring die, which belongs to the field of pellet mill ring dies. The invention sets the inner sinking chamfering die hole so that after the material enters the inner sinking chamfering die hole, It can form a mutual extrusion state by itself, and gradually fill the inner sinking chamfering die hole densely, and it is not easy to be broken, and the material shape is controlled beautifully, thus forming a granular material with higher density, strength and hardness, and when the material When the coagulation force is insufficient, through the use of the liquid storage bag, flexible catheter and soft ball for storage, the material in the state of extrusion in the inner sinking chamfering die hole can simultaneously apply pressure evenly to the flexible catheter and soft ball for storage , the liquid adhesive inside the liquid storage soft ball overflows into the material, and forms together with the material in the sinking chamfering die hole, so that the formed granular material is evenly mixed with liquid adhesive, thus greatly improving The coagulation force inside the material makes the granular material less likely to break and break during the later processing.