10results about How to "Reliable material" patented technology

The invention provides a heat recovery device of an air preheater, relates to the field of heat recovery of air preheaters, and aims to solve the problems of flue gas heat loss and insufficient heat recovery in the prior art. The device comprises an air preheater body, a flue gas filter, a fan, a preheating outer frame body, a heat preservation shell plate and the like. The air preheater body is provided with an air inlet pipe opening, an air outlet pipe opening and a heat exchange cavity, and a two-stage filter screen plate of the flue gas filter ensures that the flue gas is clean. The fan drives the spiral blades to make smoke flow spirally, and the circulation path is increased. A spiral liquid guide channel of the preheating outer frame body is communicated with a heat exchange pipeline, and heat exchange between water and smoke and heat exchange between the water and the smoke and the outer shell body are achieved through a booster pump. The heat preservation shell plate reduces heat loss. All the components work cooperatively, heat loss of the shell is effectively reduced, heat recovery efficiency is improved, and the heat exchanger is suitable for the fields of industrial boilers and the like and has remarkable energy-saving and environment-friendly significance.

The utility model relates to a cleaning block with a good cleaning effect, the cleaning block comprises a cotton cleaning layer, a loofah sponge imitating filter cotton layer and a connecting assembly, the loofah sponge imitating filter cotton layer is detachably arranged on one side of the cotton cleaning layer through the connecting assembly, and the connecting assembly comprises a round hair bonding layer and a hook hair bonding layer; the loop hair bonding layer is arranged on one side of the cotton cleaning layer, the hook hair bonding layer is arranged on one side of the loofah sponge imitating filter cotton layer, the loop hair bonding layer and the hook hair bonding layer are detachably bonded, and an anti-tearing layer is arranged between the loop hair bonding layer and the cotton cleaning layer. And a convenient-to-tear layer is arranged between the bristle bonding layer and the loofah sponge-like filter cotton layer. The cleaning block has the effects of prolonging the service life of the cleaning block and improving the cleaning performance and the drying performance.

The invention discloses a cubilose fruit grafting seedling raising method, and belongs to the technical field of fruit tree cultivation. The method comprises six aspects of stock planting field establishment, stock seedling raising, stock water and fertilizer management, grafting, grafted seedling water and fertilizer management and grafted seedling field management. A special cutter tool for cubilose fruit grafting is adopted, an L-shaped section can be formed, the section is smooth and good in integrating degree, and the grafting survival rate and the grafting efficiency can be improved. According to the invention, the seedling raising grids are used for stock seedling raising, so that the seedling raising cost can be saved, and the space utilization rate can be improved. According to the method, the thorn-free huanglong and the argentodoxa cuneata are adopted as the stocks, the root systems are developed, the morbidity of root-knot nematodes can be reduced, the grafting survival rate and the growth vigor are improved, and meanwhile the canker resistance of plants is improved; the quality of the rootstock is guaranteed, the grafting growth vigor is improved, bud germination is promoted, and fruit bearing is carried out in advance by optimizing the length, the period and the number of bud points of the rootstock.

The utility model discloses a blow-off pipeline cleaning device for large-scale engineering, which relates to the technical field of blow-off pipeline cleaning equipment, and adopts the technical scheme that the blow-off pipeline cleaning device comprises a mounting frame fixedly sleeved on the outer surface of a blow-off pipeline body, the top of the mounting frame is movably sleeved with a connecting block, and the outer surface of the connecting block is movably sleeved with the outer wall of the mounting frame; and positioning blocks are fixedly arranged on the outer surfaces of the connecting blocks, the outer surfaces of the positioning blocks are movably connected with the outer wall of the mounting frame in a sleeving mode, the number of the connecting blocks is two, and a first filter screen plate and a second filter screen plate are fixedly arranged at the bottoms of the two connecting blocks correspondingly. The sewage pipeline cleaning device for the large-scale project has the advantages of being convenient to disassemble and clean, capable of continuously discharging sewage continuously, wide in application range, compact in structure, durable in material and the like, sewage discharging efficiency can be effectively improved, the working intensity of operators is relieved, and the working efficiency of the operators is improved. And a reliable solution is provided for pollution discharge work of a large-scale project.

The utility model relates to the technical field of pet toys, and discloses a durable pet knotting toy which comprises a rope body woven by polyester woven threads, two ends of the rope body are connected with rope balls woven by nylon woven threads in a #-shaped mode through woven ropes, vibration balls are arranged in the rope balls, and a motor provides power for a transmission system in the vibration balls. An output shaft drives one bevel gear and is meshed with the other two bevel gears, two eccentric wheels are driven by a connecting rod to rotate to generate vibration, attention of pets is attracted, dynamic interestingness of the toy is increased, meanwhile, a groove and a U-shaped fixing plate provide stable support for internal parts, friction of the eccentric wheels is reduced through an arc-shaped groove, durability of the toy is improved, and power is supplied through a battery. The charging port facilitates charging, the waterproof plug prevents water from damaging parts, stable operation of the toy is ensured, the service life is prolonged, and better interactive experience is brought to pets and owners.

The present invention discloses a device for installing and positioning a secondary cast-in-place anti-slope formwork for a floor, and a construction method, comprising at least one pair of anti-slope side panels arranged opposite to each other, clamps clamped at both ends of the anti-slope side panels, and a plurality of adjustable clamps clamped at the upper sides of the anti-slope side panels, and a full-length steel plate is connected between the clamps at both ends of the anti-slope side panels; the anti-slope side panels and / or clamps are connected with embedded bolts or embedded nuts. The present invention adopts customized PVC plastic plates as the anti-slope side panels in the long side direction of the cast-in-place anti-slope, and the short side adopts customized clamps as lateral formworks, which have high strength and rigidity, can better ensure the anti-slope forming quality, and the material has a high number of reuse times and a high turnover rate; nuts are embedded in advance before the concrete floor is poured and fixed together with the floor formwork, and the anti-slope position can be more accurately positioned by this method, and the anti-slope formwork can also be reinforced with the advantage of embedded bolts.

The utility model discloses a handheld agricultural liquid mulching film sprayer, which belongs to the technical field of agricultural equipment and comprises a sprayer body, a telescopic component is arranged in the sprayer body, spraying components are arranged on two sides of the sprayer body, the bottom of the sprayer body is connected with a handheld handle, and one side of the handheld handle is connected with a rubber hose. According to the handheld agricultural liquid mulching film spray head, the influence of liquid mulching film spraying on stems and leaves of plant seedlings is reduced, meanwhile, the spray head can be automatically adjusted according to the density and height of rhizomes of different crops and the actual width of each field, and the spraying efficiency can be effectively improved.

Provided is an electrolyte measuring structure that can reduce the influence of the retention of a sample solution on a measured value, perform accurate measurement, and smoothly perform replacement work of an ion-selective electrode. The electrolyte measuring structure that can be connected to another electrolyte measuring structure via a sealing material, includes a main body 401 having a flow path 401a therethrough, a fixing structure 404 having a fixing recess for fixing a sealing material 405 to the main body 401, and the sealing material 405. The sealing material 405 is an elastic body in which a sheet region and a protrusion region to be fixed to the fixing structure are integrally molded. In a state where the sealing material 405 is fixed to the fixing structure 404 and is not in contact with the other electrolyte measuring structure, a protrusion amount of a first portion that protrudes the most on a front surface of the sheet region is larger than a protrusion amount of a second portion that protrudes the most on a front surface of the protrusion region.

The invention belongs to the technical field of biology, and particularly discloses application of an AGO10 gene in regulation and control of soybean branching quantity, and double-strand breakage is performed under mediation of endonuclease Cas9 through an effective target for editing the soybean AGO10 gene, so that different allele mutants of AGO10a / b are obtained. Compared with wild soybeans, the number of branches of the Gmago10a / b mutant is remarkably increased, so that the total pod number of a single plant is increased, and the yield of the single plant is increased. Therefore, the AGO10 gene has good application prospect and application value in the aspect of creating high-yield soybeans. By knocking out the AGO10 gene, a new strategy is provided for increasing the number of soybean branches, and reliable means and materials are also provided for cultivating new soybean varieties and improving plant types.