35results about How to "With expansion" patented technology

The invention discloses a finish coat material and a preparation method thereof. The finish coat material is prepared from the following components in parts by weight: 20-40 parts of hot melting resin, 10-30 parts of a silicone acrylic emulsion, 5-10 parts of an inorganic thickener, 5-15 parts of anti-crack fibers, 2-8 parts of a foaming agent, 3-10 parts of a polycarboxylic acid high performance water reducer, 5-15 parts of silica powder, 2-8 parts of an ultraviolet absorbent, 2-10 parts of a flame retardant, 1-4 parts of a defoamer, 3-12 parts of hydroxypropyl methyl cellulose, 2-8 parts of lignocellulose and 5-15 parts of kaolin. The preparation method disclosed by the invention is simple, low in cost and good in environment-friendly performance, has the advantages of good high-temperature resistance and weather resistance, and can prevent a cracking phenomenon.

The invention relates to the technical field of cables for rail transit, in particular to a comprehensive water-blocking ultraviolet-proof power cable for rail transit. The power cable comprises a plurality of conductors, and a semi-conductive conductor shielding layer, an insulating layer, water-blocking yarns, a first wrapping layer, a metal shielding layer and a second wrapping layer are sequentially arranged at the outer sides of the conductors. The outer side of the second wrapping layer is provided with a water-blocking isolation layer, and the water-blocking isolation layer comprises aninner-layer double-sided aluminum-plastic composite belt and a polypropylene layer bonded with the aluminum-plastic composite belt. A water absorbing belt is arranged at the outer side of the water blocking isolation layer and is made of polyester non-woven fabric added with water absorption expansion powder, a plurality of pieces of water absorption test paper are wound on the outer side of thewater absorption band, and an outer sheath layer is extruded on the outer side of the water absorption band. The comprehensive water-blocking ultraviolet-proof power cable for rail transit is simple in structure and has the comprehensive water-blocking characteristic in the radial direction and the longitudinal direction of the cable, and is good in water-blocking effect and high in economical efficiency, and the maintenance personnel can easily observe the water immersion amount of the cable.

The invention discloses an inclined chair, which comprises two chair legs, a chair bar installed transversely on the top of the two chair legs and armrests installed at both ends of the chair bar. It is more comfortable to lean on and take a short rest, especially for the elderly or people with limited mobility, it is more convenient to sit up, and it is more suitable for buses, subways and crowded places in downtown areas.

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 belongs to the field of gold tailing treatment, and particularly relates to a method for fully utilizing gold tailings. The method mainly comprises the following steps that multi-elementtailings are subjected to swirler grading, are further screened through a sand washer, are further graded by a grader, and are screened after being dried to obtain fine sand with different levels; meanwhile, an overflow part with smaller specific gravity graded by the grader is dehydrated and precipitated through a high-efficiency thickener, then layer-by-layer screening is carried out through amulti-stage desliming hopper, finally dehydrating is carried out on the most fine overflow part by using a dewatering sieve to obtain silicon micropowder which is excellent in performance and is widely applied; and a bottom flow which is precipitated by the high-efficiency thickener can be stored in an air-inflation type slurry storage tank, and is used for producing an aerated brick. According tothe method, the multi-element tailing treatment method is more refined, the gold tailings can be thoroughly utilized, no harmful gas is emitted to the environment, the method can be applied to different fields and occasions, maximum utilization of the tailings can be achieved, and the method is the most environment-friendly and most economical tailing treatment method.

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 relates to an ice cream containing unsaturated fatty acid and beta-carotene, belonging to the field of nutritional health-card food, and aiming at solving the health problems caused by eating a great deal of saturated fatty acid and overcoming the quality detects of the ice cream which is made by taking unsaturated fatty acid oil as a raw material. A making method of the ice cream comprises the following steps of: making emulsified liquid A by solid fat, isolated soy protein powder, spent meal, starch sodium octenylsuccinate and deionized water; mixing the beta-carotene and fluid oil and dissolving; making emulsified liquid B by the mixture, spent meal, a sweetening agent and deionized water; respectively sterilizing, homogenizing and ageing the two phases; before congelation, premixing the emulsified liquid A in advance, and then mixing the emulsified liquid B with the premixed emulsified liquid A to obtain ice cream slurry, wherein the quantity of the emulsified liquid B is equal to that of the emulsified liquid A; and finally, carrying out extrusion congelation operation at low temperature. The ice cream prepared by the invention is good in mouthfeel and shape forming ability, and overcomes the quality defects of the ice cream which is made by taking unsaturated fatty acid oil as raw material; and the ideal texture properties and nutrition-allocated proportion can be obtained.

The invention relates to a metal bead gasket (11) comprising a sealing area (12) having at least one bead (9); having at least one recess (21) for receiving a support at least one support region (13) of a device (5), in particular a screw; and at least one intermediate region (14) connecting the sealing region (12) to the support region (13), wherein the intermediate region (14) is Configured to be more deformable and less stable perpendicular to the support direction (4) than the sealing area (12) and / or the support area (13).

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.