12results about How to "Avoid character change" patented technology

The utility model discloses a lock bolt device for an exhaust pipe of a diesel engine, which comprises two exhaust pipe bolts used for fixing the exhaust pipe on a cylinder cover, the exhaust pipe is provided with exhaust pipe mounting holes through which the exhaust pipe bolts can pass, and the cylinder cover is provided with threaded mounting holes matched with the exhaust pipe bolts; a special cushion column with a certain length is arranged between a nut of the exhaust pipe bolt and the exhaust pipe in a sleeved mode, and heat dissipation holes are formed in the side wall of the special cushion column. From the perspective of reducing the temperature, the length of the exhaust pipe bolts is increased through the ingenious structural design, the tightening force is increased, meanwhile, a stretching area is located outside, and the exhaust pipe bolts are not prone to being pulled out, so that the temperature of the exhaust pipe bolts is reduced, and the service life of the exhaust pipe bolts is prolonged. And the temperature of the exhaust pipe bolt is reduced in a heat dissipation mode through the heat dissipation holes, so that the material property change caused by high temperature is avoided, meanwhile, the influence of thermal stress on bolt fastening is reduced, and the purpose of bolt looseness prevention is achieved.

The invention relates to an ultrasonic trigger type quick-setting capsule and an application method thereof in 3D printing concrete, the ultrasonic trigger type quick-setting capsule comprises a gel carrier, an additive and an encapsulation, the additive is mixed in the gel carrier, the encapsulation wraps the gel carrier, the gel carrier is semi-solid gel, and the gel carrier is a semi-solid polymer. The additive is an alkali-free liquid accelerator or a water-soluble concrete accelerator solution, the material of the encapsulation is the same as or similar to that of the gel carrier, the density of the encapsulation is greater than or equal to that of the gel carrier, and the encapsulation can be broken through ultrasonic waves. Compared with the prior art, the method has the advantages that the property change of the concrete can be avoided, and the setting rate is controllable.

The utility model relates to the technical field of medicine manufacturing, concretely to solid preparation hot melt medicine crushing device for applicable. Including: cooling extrusion roller, its inside is provided with cooling water channel, is used for the cooling water and is cooled and extrusion forming to hot melt material, transmission system, sets up in the discharge side of cooling extrusion roller, is used for the acceptance and delivery hot melt material, crushing system, sets up in the discharge side of transmission system, is used for the crushing to hot melt material, discharge port, with the discharge end of crushing system links to each other, is used for the discharge after the crushing of hot melt material. Cooling extrusion roller and transmission system between setting up cooling roller, its inside is provided with cooling water channel, is used for the cooling water and is cooled and delivery to hot melt material. It can solve the problem such as difficult processing of sticky material, heat sensitive component inactivation and uneven particle size distribution.

This invention discloses an energy-saving grinding component for a sand mill, comprising an equipment housing containing a cooling tank, a grinding chamber located above the equipment housing, a spiral cooling cavity within the grinding chamber, a feeding pipe and a discharge pipe on the grinding chamber, and a cover fixedly mounted on the top of the equipment housing on one side of the grinding chamber. This invention improves the contact shearing efficiency between the grinding chamber and the material and grinding media beads through the coordinated operation of a cam, hollow shaft, grinding drum, and pin, achieving material grinding. Heat exchange is achieved between the cooling water in the spiral cooling cavity and the grinding chamber, enabling temperature control while recycling water resources. It also allows the warm water after heat exchange to quickly and thoroughly mix with the low-temperature cooling water and cooling elements, agitating the water to break up temperature stratification, ensuring the low-temperature stability of the return cooling water, and continuously guaranteeing the cooling effect. The entire process is driven by a single power source, balancing cooling efficiency and energy saving.

The invention discloses a production method for preparing autoclaved aerated concrete from solid waste tail gas powder, and relates to the technical field of concrete production.The production method of the autoclaved aerated concrete comprises the following steps that S1, large-particle impurities in the solid waste tail gas powder are screened out; s2, scrap iron, plastic and wood chips are removed; s3, humidity detection and evaluation are carried out; s4, screening treatment is conducted, and drying is conducted; s5, the dried solid waste tail gas powder is screened, ground and screened; s6, measuring the chemical composition of the solid waste tail gas powder; s7, adding an air entraining agent into the solid waste tail gas powder, the siliceous material and the calcareous material; s8, designing a three-factor three-level orthogonal test; and S9, post-treatment is carried out. According to the method, large-particle impurities in the solid waste tail gas powder are screened out, scrap iron, plastic and wood chips in the solid waste tail gas powder are removed, the solid waste tail gas powder can be purified, resource recycling is achieved, the quality of the autoclaved aerated concrete is improved, and the production cost is reduced.

This utility model relates to a novel grinding disc-assisted grinding device for a sand mill, comprising a frame, a variable frequency motor fixedly installed inside the frame, a bearing seat fixedly installed above the frame, a drive shaft mounted on the bearing seat, the variable frequency motor and the drive shaft connected by a drive belt device, a grinding cylinder fixedly mounted on the bearing seat by grinding cylinder fixing bolts, and an end cap fixedly mounted on the other end of the grinding cylinder by end cap fixing bolts. The bearing seat, grinding cylinder and end cap form a sealed grinding chamber, in which a grinding disc, a conical spacer and a rotor are arranged. The conical spacer is a spacer with a tapered structure. The grinding disc and the conical spacer are mounted on the drive shaft, and the rotor is mounted at the farthest end of the drive shaft. The stirring device composed of the grinding disc, the conical spacer and the rotor rotates with the drive shaft. This utility model solves the problems of traditional cylindrical spacers not being able to fully utilize the grinding chamber space and having low grinding efficiency, and square spacers having high energy consumption and relatively insufficient uniform mixing ability.

The invention discloses clamping and heating functional equipment for a multi-layer bonded product, the multi-layer bonded product is provided with a structure formed by a polymer material which can be clamped and bonded by an object which can be crushed by extrusion or hit or bonded on a single side, and the clamping and heating functional equipment at least comprises one or combination of the following components: a clamping and conveying component, a heating component and a heating component, the clamping mechanism is used for clamping the multi-layer bonding product and conveying the multi-layer bonding product towards a preset direction; the crushing assembly is used for carrying out extrusion crushing or striking crushing on the multi-layer bonding product; the heating source is used for heating the multi-layer bonding product in the clamping and conveying process; and the power source is used for driving the clamping and conveying component. The equipment provided by the invention has the characteristics of high efficiency, energy conservation and flexibility in operation, and meets the diversified requirements of the modern recovery industry on the separation and recovery of the multi-layer bonded product.

The utility model discloses a condensing device for water reducing agent processing belongs to water reducing agent processing technical field. The utility model is provided with cold -draf machine and cooling water tank respectively in the both sides of reation kettle, and the inside of reation kettle is provided with cold gas ring pipe and cooling rotary pipe, and through three -fold cooling path cooperation, and cold -draf machine injects cold air directly into water reducing agent inside through the exhaust port of vertical pipe, and cold air is contacted directly with material, and utilizes heat exchange to take away heat quickly, and the inside of cooling rotary pipe is kept low temperature through cold air, and rotates and stirs under the driving of motor, expands low temperature contact surface, and passes through stirring and accelerates heat transfer in material inside, and the cooling medium of cooling water tank flows around outside reation kettle, forms the barrier of " external heat preservation + cooling", reduces the heat interference of external environment to inside, takes away the heat of reation kettle wall conduction simultaneously, can control water reducing agent temperature in target range quickly, avoids the change of material property because of slow cooling.

The utility model provides a pesticide proportioning, mixing and stirring device, which relates to the technical field of pesticide proportioning and comprises a plurality of supporting columns, a cleaning mechanism is arranged at the tops of the plurality of supporting columns, a metering mechanism is arranged at the top of the cleaning mechanism, and the cleaning mechanism comprises a mounting plate and a water storage tank. A placement groove is formed in the position, close to the center, of the top of the mounting plate, a stirring tank is arranged at the top of the placement groove, the top of the stirring tank fixedly communicates with a feeding port, a first threaded cover is arranged at the bottom of the stirring tank, and a driving motor is arranged at the position, close to the center, of the top of the stirring tank. According to the utility model, pesticide residues in the stirring tank can be cleaned, so that the pesticide residues in the stirring tank are prevented from being mixed with pesticide added during next use, and the property change of the pesticide due to long-time retention in the stirring tank can be prevented, thereby not only ensuring the accuracy of pesticide proportioning, but also ensuring the use effect of the pesticide.

The utility model discloses a reagent conveying mechanism which comprises a conveying assembly and a limiting assembly, the conveying assembly comprises a carrier and a driving part, the carrier is used for bearing a reagent storage box, and the driving part is in transmission connection with the carrier so as to drive the carrier to move; the limiting assembly comprises two baffles, and the two baffles are arranged in parallel and located on the two opposite sides of the carrier correspondingly. Wherein each baffle plate can transfer heat, and each baffle plate is provided with a refrigeration piece. According to the technical scheme, an effective refrigeration environment can be provided in the reagent warehousing process.

The utility model provides a lithium battery aerogel heat insulation sheet packaging flame-retardant thermosetting film which comprises a glass fiber aerogel heat insulation sheet, and a PET (Polyethylene Terephthalate)-based thermosetting film is arranged on the outer layer of the glass fiber aerogel heat insulation sheet; a glass fiber aerogel heat insulation sheet with extremely low heat conductivity, good mechanical strength and light weight characteristics and a PET-based thermosetting film with good chemical resistance and mechanical properties are compounded to form the thermosetting film, and a graphene soft ceramic sheet is arranged between the glass fiber aerogel heat insulation sheet and the PET-based thermosetting film for heat conduction and flame retardance, so that the high temperature resistance, corrosion resistance and flame retardance of the thermosetting film are greatly improved; the heat-conducting graphene sheet layers at different layers are connected through the metal mixed graphite column, so that the heat of the inner layer can be timely conducted out, the change of the structure and the property of the glass fiber aerogel caused by heat stacking of the thermosetting film is avoided, the lithium battery packaged by the thermosetting film can keep a stable working temperature in a high-temperature environment, thermal runaway does not occur under a short-circuit condition, and the service life of the lithium battery is prolonged. In a combustion test, the PET-based thermosetting film material effectively prevents flame spreading and has good working efficiency.

The utility model provides a medicine concentration device, which relates to the technical field of medicine concentration devices, and comprises a concentration barrel and a material receiving barrel, the material receiving barrel is arranged at the bottom end of the concentration barrel, support legs are fixedly arranged on the surface of the concentration barrel, a base is fixedly arranged at the bottom ends of the support legs, a feed port is arranged at the top end of the concentration barrel, and a discharge port is arranged at the bottom end of the feed port. A discharging opening is formed in the bottom end of the concentration barrel, a heater is installed on the surface of the concentration barrel, a steam pipe is connected to the top end of the heater, an air guide pipe is installed at the top end of the concentration barrel, and a double-layer heat exchange pipe is installed at the top end of a feeding opening. According to the concentration barrel, waste heat generated by the heater in the concentration process can be used for preheating drugs, external energy consumption is reduced, the production cost is reduced, meanwhile, the preheated drugs enter the concentration barrel from the feeding opening, the concentration speed can be increased, and the production efficiency can be improved.