31results about How to "Play a barrier effect" patented technology

The invention discloses a novel anti-corrosion coating and a preparation method of the coating, which solves the problem that the existing fly ash anti-corrosion coating is difficult to disperse and the mechanical properties of the coating are reduced. The present invention uses the reflux method to graft phenylphosphonic acid and surfactant on the surface of fly ash, so that the phenylphosphonic acid and surfactant are hydrolyzed in the heating process, and then connect with some hydroxyl groups on the surface of fly ash, grafting The final fly ash eventually becomes sea urchin-like particles. Among them, the presence of phenylphosphonic acid improves the dispersion of fly ash particles in the resin and the bonding area with the resin, thereby greatly increasing the wear resistance of the coating; at the same time, the presence of phenylphosphonic acid and surfactants The corrosion inhibitor can be more evenly dispersed into the nano-micropores of the fly ash, and its corrosion inhibition effect can be exerted, and the anti-corrosion performance of the coating can be enhanced at the same time.

The invention discloses goggles with an anti-fog coating and a production method of the anti-fog coating, relates to the technical field of goggles, and aims to solve the problem of easy fogging in use. The goggles comprise a main body, wherein an anti-fog coating is arranged on the mirror surface of the main body, and the anti-fog coating is prepared from the following raw materials of maleic anhydride grafted polyethylene, a silicon dioxide particle solution, coupling agents, zwitterionic surfactants, polysorbate and organic solvent. The method comprises the following steps of proportionallyadding a diisocyanate monomer, hydroxy acrylate and ethyl acetate into a reaction container, uniformly stirring, and heating for 10 minutes. According to the goggles, by arranging the anti-fog coating, an effective anti-fog effect can be achieved, the use experience is improved, effects of anti-glare, wear resistance and water resistance are achieved while meeting the anti-fog requirement; and byarranging elastic particles, the filling amount of the elastic particles can be adjusted according to the requirement, so that the use experience of different users is met.

The invention relates to a contact system with a high-voltage direct-current arc protection structure, comprising a ceramic seat, two static contacts, a movable contact and a transmission rod. The static contact is installed on the ceramic seat, and the movable contact is respectively in contact with the two static contacts. One end of the transmission rod is fixedly connected with the movable contact, and the other end is used for receiving power from the electromagnetic system and driving the movable contact to reciprocate linearly; The ceramic seat is provided with a protective structure for cutting off the connection of an arc sputtering object between two static contacts. The contact system of the invention can effectively prevent the connection of the electric arc sputtering objectsbetween the two static contacts by arranging a protective structure between the two static contacts on the ceramic base, increase the creepage distance, restrict the dielectric withstand voltage levelof the electric life index of the contactor to be improved, and accordingly improve the electric life of the contactor.

The invention discloses a deep foundation pit tower crane waterproof structure of weakly permeable soil and a construction method, and belongs to the technical field of tower crane foundation waterproof structures. The deep foundation pit tower crane waterproof structure comprises a foundation pit and a water collecting well, wherein the foundation pit comprises a foundation pit slot and a drainage groove, the foundation pit slot is located in the drainage groove, a concrete cushion is arranged on the bottom surface of the foundation pit slot, a brick membrane is arranged on the inner wall ofthe foundation pit slot, a waterproof layer I is arranged on the brick membrane, the top side of the waterproof layer I extends to the outer wall of the brick membrane, a concrete pressing plate is seamlessly connected to the waterproof layer I located on the top surface of the brick membrane, a tower crane base station to the interior of the drainage groove is arranged in an area between the concrete cushion and the waterproof layer I, a concrete foundation layer is arranged in the drainage groove, a waterproof layer II is arranged on the surfaces of the concrete foundation layer and the tower crane base station, the waterproof layer II is fixedly connected with the waterproof layer I located on the outer wall of the brick membrane, a drainage pipe which communicates with the water collecting well is arranged on the waterproof layer II, and a crushed stone layer is arranged above the drainage pipe. The deep foundation pit tower crane waterproof structure is a tower body protecting structure which has the advantages of simplicity, convenience, effectiveness, firmness, durability and long waterproof effect.

The invention discloses a malt recovery and utilization device for a beer production workshop, which comprises a recovery cover cylinder, a collection cylinder and a bracket supporting the recovery cover cylinder, the collection cylinder is a cylindrical cylinder with both ends closed, and the bottom circumference of the collection cylinder is A discharge hopper is arranged on the outer wall, and a collection box is provided at the lower end of the discharge hopper. The recovery cover cylinder is a conical cylinder arranged horizontally. The large diameter end of the recovery cover cylinder is connected with the right end surface of the collection cylinder and connected with the inside Connected, the left end surface of the collection cylinder is provided with a dust discharge cylinder, the outlet end of the dust discharge cylinder is fitted with a dust collection bag, the inlet end of the dust discharge cylinder is inserted into the inside of the collection cylinder, and the dust discharge cylinder The right end is provided with a conical separation cover, and the left end face of the separation cover is connected with the inlet end of the dust discharge cylinder. The structure design of the present invention is simple, the separation effect is good, and the recycling rate of wheat heads, fine powder and light malt is high. , can effectively collect dust.

The invention discloses an energy-saving shockproof hammer convenient to clamp. The hammer comprises a cable, an aluminum wrapping belt, a quick clamping mechanism, a steel strand and a shockproof hammer. The quick clamping mechanism is arranged, the structure is simple, the dismounting and mounting is convenient, and the installation time is effectively saved; the compression device is arranged,cables with different diameters can be clamped by adjusting the matching degree of a nut and a connecting frame, and the pressure is adjustable; through the arrangement of a rubber block, the rubber block has good toughness, can be tightly clamped by being attached to the outline of the cable to prevent rainwater from entering the position between the aluminum wrapping belt and an arc-shaped blockand prevent the cable from being damaged and falling off due to long-time oxidation; and through arrangement of the shockproof hammer, the hammer block is arranged to the water droplet form, the windage coefficient is little, the hammer block adopts seamless design and is difficult for water snow gathering so that the anti-knock effect is stable, and the hammer block adopts the aluminum alloy material, is difficult for rusting, is long in service life, and can effectively achieve the energy-conserving effect.

The invention discloses an automatic dough mixer and a dough mixing method, comprising a base, an outer cylinder is fixedly connected at the central position of the base, the outer cylinder has a cylindrical structure with one end open, a knob switch is arranged on the side of the base, and a side of the base is A locking piece is provided, an auxiliary arm is hinged above the base, a cylinder cover is fixedly connected to one end of the auxiliary arm, and the cylinder cover is matched with the opening of the outer cylinder. There is an inner cylinder, the shape of the inner cylinder is similar to the outer cylinder, the radius of the inner cylinder is smaller than the radius of the outer cylinder, the lower end of the outer side wall of the inner cylinder is provided with a lower hinge part, and the upper hinge part and the lower hinge part are connected by an elastic connecting rod, The automation of dough mixing is realized by designing a stirring assembly, and the vibration or shaking generated in the working process is slowed down by designing an elastic connecting rod between the walls of the outer cylinder and the inner cylinder.

The invention discloses a winter and summer dual-purpose medium-deep geothermal heat energy conversion device which comprises an outer pipe and an inner pipe, the lower end of the inner pipe is communicated with the outer pipe, the axis of the outer pipe and the axis of the inner pipe are located on the same straight line, a flange plate is arranged at the upper end of the outer pipe, embedded concrete is arranged below the flange plate, and the embedded concrete is poured on the ground. The outer pipe penetrates through embedded concrete and extends into the ground, an input pipe is installed at the upper end of the outer pipe, an output pipe is installed at the upper end of the inner pipe, circulating heat conduction mechanisms are arranged at the two ends of the outer pipe, and a circulating switching mechanism is arranged on one side of the outer pipe. The geothermal well has the beneficial effects that the circulation depth of a medium can be changed according to the actual environment requirement through the effect of the circulation switching mechanism, the geothermal well is prevented from being in an idle state, the utilization rate of the geothermal well is increased, and a certain blocking effect can be achieved on the medium in the shallow layer and the medium in the deep layer; through the effect of the circulating heat conduction mechanism, the internally-circulating heat conduction fluid can be inserted between the stratum and the outer pipe in a reciprocating mode, and the heat exchange rate is increased.

The invention relates to a double-layer flow-guiding all-cotton spunlaced nonwoven fabric and a preparation method thereof. The prepared nonwoven fabric comprises a planar diffusion parallel network layer and a three-dimensional fiber network layer with down-absorption function, and the two layers of network are both Composed of 100% bleached cotton fibers, the double-layer diversion type adopts two physical arrangements of fibers to obtain a double-layer diversion structure, forming a more obvious interlayer layer, which plays the role of diverting liquid and blocking back seepage effect, to achieve the performance of the product. It has a double-layer diversion type cotton spunlace nonwoven fabric with thin thickness, no chipping, soft, skin-friendly, environmentally friendly, not easy to deform, good wear resistance, strong liquid diversion suction, and has the effect of blocking liquid back seepage , Improve the comfort of the end product.

The invention relates to a propolis composition, which comprises 50%+ / -5% of propolis, 15%+ / -5% of sodium alginate and 25%+ / -5% of carboxymethyl cellulose. The tests prove that the propolis composition disclosed by the invention is beneficial to wound healing after being coated on a wound, the wound healing area in unit time is remarkably increased, wound healing is remarkably promoted, and the wound healing time is shortened.

The invention relates to the technical field of diamond machining, and discloses an MPCVD diamond grinding device. The device comprises a grinding disc, a motor frame is fixedly connected to the bottom face of the grinding disc, a rotating motor is fixedly installed on the bottom face of the motor frame, a grinding wheel is fixedly connected to the end, in the grinding disc, of a transmission shaft of the rotating motor, and sliding grooves are formed at the left side and the right side of the top face of the grinding disc. Sliding plates are arranged in the sliding grooves in a sleeved manner, grooves with inverted-T-shaped cross sections are formed in the faces, corresponding to the center of the grinding disc, of the sliding plates, sliding blocks are arranged on the inner walls of the sliding plates in a sleeved manner, holes are formed in the faces, away from the center of the grinding disc, of the sliding blocks, rotating discs are connected into the holes through rotating bearings, and tooth grooves are formed in the outer walls of the rotating discs. The inner walls of the side faces of the sliding plates are provided with grooves, five toothed plates are arranged in the grooves in a sleeved manner, through the arrangement of the sliding plates, in the process that each face of diamond is lifted after grinding is completed, the diamond is automatically made to rotate, the tedious operation of disassembling and assembling the diamond and adjusting the angle is omitted, and the machining efficiency of diamond grinding is improved.

The present application relates to the field of wafer cleaning equipment, in particular to a wafer rotational speed detection device. The wafer rotation speed detection device includes a seating cylinder and a driven shaft. An end cover of one end of the seating cylinder is provided with a mounting hole, and the driven shaft extends into the seating cylinder through the mounting hole, and passes through the first bearing. and the second bearing is rotatably connected with the seat cylinder. An air inlet is formed on the seat cylinder between the first bearing and the second bearing, a first flow channel is formed on the side wall of the driven shaft, and one end of the first flow channel is located between the first bearing and the second bearing, The other end of the first flow channel extends to the side wall of the driven shaft opposite to the inner wall of the installation hole of the seat cylinder, so that the gas entering the seat cylinder can flow to the installation hole through the first flow channel, and then the gas It is introduced into the brushing box through the gap between the installation hole and the driven shaft, so that the gas can play a barrier effect and prevent the cleaning liquid in the brushing box from leaking through the inner cavity of the seat cylinder.

The invention discloses a preparation method of a low reverse osmosis high-absorbency resin. In the polymerization process, a redox initiator is used, and a hydrophilic and hydrophobic composite cross-linking agent and a phase transfer catalyst are added. Alkali is added for neutralization during the polymerization and granulation processes, and a surfactant is added during the granulation process. The granulated gel is dried, pulverized, screened, and surface treated in sequence to obtain a low reverse osmosis high-absorbency resin. The anti-reverse osmosis ability of the low-reverse osmosis high-absorbency resin prepared by the invention is obviously improved, and the effect on improving the dryness and comfort of sanitary products is obvious.

The invention relates to the technical field of metal coatings, and discloses a production equipment for anti-skid and anti-vibration coatings, which includes a bottom plate, a support frame is fixedly connected to the top surface of the bottom plate, the top of the support frame is a semi-circular body, and the inner wall of the top surface of the support frame is socketed There is a material barrel, a chute is opened on the left top surface of the bottom plate, a slide plate is sleeved in the chute, and a rotating motor is fixedly connected to the side of the slide plate corresponding to the material barrel. Bearings, rotating bearings are fixedly connected with the transmission shaft of the rotating motor, one end of the rotating motor transmission shaft inside the barrel is fixedly connected with a stirring plate, the right side of the stirring plate is fixedly connected with two stirring rods, and the right side of the material barrel is fixedly connected And it is connected with the feeding cylinder A. Through the setting of the stirring rod, the raw materials are scraped from the bottom into the grinding cylinder in a layered manner, and the ground raw materials are spread on the upper layer to avoid mixing with the unground raw materials, so as to ensure Grinding range of raw materials and overall grinding effect.

The invention relates to the technical field of diamond processing, and discloses an MPCVD diamond grinding device, comprising a grinding disc, a motor frame is fixedly connected to the bottom surface of the grinding disc, a rotating motor is fixedly installed on the bottom surface of the motor frame, and the transmission shaft of the rotating motor is inside the grinding disc One end of the grinding wheel is fixedly connected with a grinding wheel, and there are chutes on the left and right sides of the top surface of the grinding disc. A sliding plate is sleeved in the sliding groove. There is a slider, the side of the slider away from the center of the grinding disc is provided with a hole, and the hole is connected with a turntable through a rotating bearing. , Through the setting of the slide plate, in the process of grinding and lifting of each surface of the diamond, the diamond is automatically rotated, eliminating the tedious operation of disassembling and assembling the diamond to adjust the angle, and improving the processing efficiency of diamond grinding.