8results about How to "Won't collapse" patented technology

The stacking frame for feed production comprises a bottom plate, a vertical plate is arranged in the middle of the bottom plate, positioning grooves are formed in the middles of the two sides of the vertical plate, cross rods are connected into the positioning grooves, pull rings are arranged at the right ends of the cross rods, first sleeves are arranged in the middles of the two ends of a base, and the first sleeves are sleeved with the first sleeves. A second sleeve is arranged in the first sleeve, a fixing rod is arranged in the second sleeve, a through hole is formed in the cross rod, a mounting groove is formed in the left side of the through hole, a through groove is formed in the top of the mounting groove, a spring is arranged in the mounting groove, a positioning rod is arranged at the right end of the spring, and a push rod is arranged at the top of the positioning rod. A positioning opening is formed in the upper portion of the left side of the fixing rod, the positioning rod moves rightwards to clamp the positioning opening, the fixing rod is fixed, the fixing rod, a second sleeve and a first sleeve limit the side face of stacked feed, the stacked feed cannot collapse, and therefore storage of the stacked feed is safer.

This invention discloses a prefabricated steel-concrete composite beam floor structure, including frame columns, steel main beams, and steel secondary beams. Floor slabs are laid on the steel main beams and secondary beams. Connecting plates are vertically installed on the web of the steel main beams. One end of the floor slab is wrapped with angle steel. The floor slabs do not contact the frame columns. In this invention, the first floor slab is connected to the steel main beam by a first bolt, achieving a combined effect between the steel main beam and the first floor slab, improving the bending resistance and stiffness of the steel main beam. The second and third floor slabs are connected to the steel secondary beams by spot welding, ensuring that the floor slabs will not collapse under seismic loads. The third floor slab has no rigid connection to the steel main beams, allowing relative sliding between them after an earthquake, thus preventing damage to the slab. Furthermore, a gap is left between the third floor slab and the frame columns to ensure that the deformation of the frame columns under seismic loads does not collide with the floor slab, maintaining the integrity of the floor slab.

The invention discloses a sectional type middle section prestress tensioning opposite-pulling prestress anchor rod and a construction method. The sectional type middle section prestress tensioning opposite-pulling prestress anchor rod comprises an air gun, an air supply system, a grouting system, a prestress tensioning system, an anchor rod connecting pipe sleeve and a sectional type anchor rod body. A construction method of a sectional type middle section prestress tension anchor rod of a small-clear-distance tunnel comprises a drilling system, a grouting system, a prestress tension system and a monitoring system, and mainly comprises the following steps that (1) construction of an advance hole is confirmed; (2) hole site paying-off is carried out; (3) drilling operation; (4) the anchor rods are assembled in a driven mode; (5) performing grouting operation; (6) pre-stress tensioning construction is conducted; (7) checking after tensioning; and (8) the tensioning jack is dismantled, and the exposed end of the anchor rod is coated with guniting. According to the method, sufficient prestress tensioning of the anchor rod can be guaranteed, the problem that tensioning cannot be conducted after one end is fixed in two-end tensioning in a traditional method is solved, the stability of tunnel construction of a small clear distance section is effectively improved, the stability of a middle rock pillar is improved, the tunnel construction risk is reduced, meanwhile, the tunnel construction progress can be guaranteed, and the construction efficiency is improved. And the engineering cost of tunnel engineering construction is greatly reduced.

The application discloses a preparation method of full-inorganic alumina fiber / aerogel composite heat insulation paper, and the method comprises the following steps: alumina fiber web is pretreated by inorganic glue and a network roller to obtain alumina fiber base paper; a silica sol and an alkali catalytic liquid are prepared; the silica sol and the alkali catalytic liquid are mixed and then combined with the alumina fiber base paper; the obtained alumina fiber base / wet gel paper is subjected to solvent replacement and aging treatment; and the alumina fiber base / wet gel paper after aging is dried to complete the preparation. The alumina fiber / aerogel composite heat insulation paper prepared by the method has good mechanical strength, adjustable hardness, excellent heat insulation performance, high-temperature resistance (above 900 DEG C) and low burning loss, and can meet the application scene requirements of high-temperature closed environment heat insulation material coating and ring punching.

The invention discloses a preparation method of all-inorganic alumina fiber / aerogel composite heat insulation paper, which comprises the following steps: carrying out enhancement pretreatment on an alumina fiber web by using inorganic glue and an anilox roller to obtain alumina fiber base paper; preparing silicon dioxide sol and alkali catalysis liquid; mixing the silicon dioxide sol with alkali catalysis liquid, then compounding with alumina fiber base paper, and carrying out solvent replacement and aging treatment on the obtained alumina fiber base / wet gel paper; and drying the aged alumina fiber-based / wet gel paper to prepare the alumina fiber-based / wet gel paper. The alumina fiber / aerogel composite heat insulation paper prepared by the method is good in mechanical strength, adjustable in hardness, excellent in heat insulation performance, resistant to high temperature of 900 DEG C or above, low in ignition loss and capable of meeting the requirements of application scenes such as heat insulation material coating and ring punching in a high-temperature closed environment.

This invention discloses a dehumidification and water removal device for a glass substrate drying section, comprising a dehumidification and water removal assembly. The assembly is mounted on a conveyor table, and a conveyor roller is movably mounted on the conveyor table. A conveyor belt is mounted on the outer side of the conveyor roller, and multiple sets of double-plate support assemblies are evenly mounted on the conveyor belt. Two sets of glass plates are respectively mounted on each double-plate support assembly. The dehumidification and water removal assembly includes a water removal frame, with both ends of the frame screwed to both sides of the conveyor table. This dehumidification and water removal device for a glass substrate drying section, through the double-plate support assembly, allows two sets of glass plates to be mounted on a single double-plate support assembly. The two sets of glass plates are placed at an angle, and when they move into the water removal frame, hot air can simultaneously dehumidify and dry both sides of the two sets of glass plates. This allows for simultaneous double-sided dehumidification of two sets of glass plates at once, significantly improving the dehumidification and water removal efficiency per unit number of glass plates.

This invention relates to the field of drilling engineering technology and provides a wall repair fluid for oil-based drilling fluids, comprising: 20-80 parts by weight of cementitious binder; 40-100 parts by weight of mineral admixture; 5-30 parts by weight of activator; 10-50 parts by weight of oil corrosion resistant agent; 0-100 parts by weight of density regulator; 0-5 parts by weight of flow modifier; 0.1-20 parts by weight of retarder; 0.1-20 parts by weight of fluid loss reducing agent; and 100 parts by weight of water. The repair fluid of this invention is suitable for temperatures (40-180℃) and densities (1.2-2.1 g / cm³). 3 This invention provides a method for preparing and applying a repair fluid. The repair fluid exhibits good compatibility with the oil phase, high safety, and strong resistance to mixing with oil-based drilling fluids. After solidification, it forms a high-strength, oil-corrosion-resistant, and long-term stable interlayer wall, ensuring that the interlayer wall will not break or collapse again, thus guaranteeing the smooth progress of drilling and well completion operations. The invention also provides a method for preparing and applying the repair fluid.