13results about How to "Prevent hardening" patented technology

The utility model discloses a gun needle sealing mechanism which comprises a first sealing block and a second sealing block, the first sealing block is arranged on the outer surface of a gun needle, the two ends of the first sealing block are each provided with a first spring seal, and the two first spring seals are both arranged on the outer surface of the gun needle in a sleeving mode; a first sealing assembly is arranged on the outer side of the first sealing block and arranged between the first sealing block and the spray gun shell. The second sealing block is arranged on the outer surface of the gun needle, a second spring seal is arranged on the outer side of the second sealing block, the second spring seal is arranged between the second sealing block and the spray gun shell, a second sealing assembly is arranged in the second sealing block, and the second sealing assembly is arranged between the second sealing block and the gun needle. The second sealing assembly is arranged on the outer surface of the gun needle in a sleeving mode. According to the spray gun, slurry such as glaze can be effectively prevented from being hardened in the gap between the gun needle and the spray gun shell, then the gun needle can be effectively prevented from being clamped, and the service life of the spray gun is prolonged.

This invention discloses a harmless treatment device for livestock and poultry breeding waste, belonging to the field of anaerobic treatment technology. To address the problem of biogas suffocation during biogas digester use, leading to a significant reduction in effective gas production and affecting digester safety, as well as poor gas-liquid separation during gas collection and severe liquid contamination in biogas, resulting in low pure gas capture rates, the invention includes a biogas digester body and an inlet connected to one side of the digester body. A skylight cover is fixed to the upper center of the digester body, and ventilation ports are provided on both sides of the bottom surface of the skylight cover. This invention enables the collection and circulation of biogas from within the liquid. Combined with the ventilation ports and guide pipes, it collects and circulates the naturally rising biogas within the digester body, improving biogas collection efficiency while preventing scum and foam from covering the gas-liquid interface, thus avoiding suffocation of biogas and affecting biogas collection efficiency and pressure safety within the digester body.

The application discloses a drainage bag with an antibacterial functional layer and a preparation process thereof, and relates to the technical field of medical materials, and comprises the following steps: adding modified montmorillonite into N, N'-dimethylacetamide, uniformly mixing through ultrasonic, adding a polyurethane film, ultrasonic immersion for 60-120 min, drying, and obtaining a drainage bag substrate; adding polylactic acid into N, N-dimethylformamide, uniformly stirring and mixing, adding modified nano zinc oxide, uniformly mixing through ultrasonic, and then performing electrospinning to obtain an antibacterial coating fiber film; placing the antibacterial coating fiber film on the inner side surface of the drainage bag substrate, high-frequency heat sealing, assembling, and obtaining the drainage bag.

The application relates to the technical field of fabric support, in particular to a wrinkle-preventing silk fabric suspension type shaping support structure, which comprises a suspension support, a top plate, a cloth winding shaft, an auxiliary beating assembly and a wrinkle-removing positioning assembly, the top plate is fixedly connected at the top of the suspension support, and the wrinkle-removing positioning assembly is installed at the side of the suspension support close to the auxiliary beating assembly. The wrinkle-preventing silk fabric suspension type shaping support structure of the application simulates the natural unfolding effect of manual beating through low-frequency vibration of the auxiliary beating assembly, and avoids the damage of high temperature or chemical treatment to silk fibers. The cloth winding shaft symmetrically winds large-size silk fabrics, so that the fabrics are uniformly stressed in a suspension state, and folding marks are completely eliminated, and meanwhile, the transverse occupied space is saved; the fabric is gently pressed against the fabric edge by rotating the handle to drive the threaded rod, so that the vertical direction of the fabric is maintained, and oblique distortion wrinkles are avoided; the limiting block ensures that the fabric does not displace during beating, and the wrinkle-removing efficiency is improved.

This invention discloses a manufacturing equipment and method for hot roughing universal joints used in metallurgical steel rolling. The equipment includes a worktable with four support legs at its bottom and a central control system at its top. It also includes a speed-changing support mechanism mounted on the top of the worktable, with two fixing mechanisms on the mechanism. The two fixing mechanisms respectively fix the universal joint and a flange. This supports the universal joint and the flange, enabling synchronous rotation and position adjustment, providing stable support for subsequent welding, straightening, and other processes. This device significantly improves welding quality by refining grains and dispersing impurities through multi-field coupling; avoiding surface damage through non-contact creep straightening; achieving micron-level straightening through ultrasonic rolling; forming a deep residual compressive stress layer to improve fatigue resistance; reducing human error through automated closed-loop control; adapting to various workpiece specifications; and significantly improving efficiency and reducing costs through integrated processing.

This invention discloses a fertilization device for the ecological cultivation of Chinese medicinal herbs, relating to the field of agricultural planting technology. It includes a spreading bucket, multiple discharge pipes at the bottom of the spreading bucket, valves on the discharge pipes, and an electric walking track at the bottom of the spreading bucket. A feeding rack is installed inside the spreading bucket, forming a semi-cylindrical storage space to hold fertilizer. Multiple through holes are located at the center of the arc-shaped surface of the feeding rack, directly below the discharge pipes. This invention allows the dispersing rack and separating plate to move laterally within the feeding rack, dispersing the fertilizer inside and effectively preventing fertilizer compaction. This ensures the fertilizer falls onto the soil surface after conforming to the specifications of the through holes, improving the quality of fertilizer application. Simultaneously, a rotating bending rod and a stirring rod can rotate along a path perpendicular to the lateral movement path of the dispersing rack, further agitating the fertilizer and improving the uniformity of fertilization.

This application provides a caviar-encased cheese popping pearl and its preparation method. The caviar-encased cheese popping pearl includes popping pearl particles and a protective liquid. The popping pearl particles include an inner core and a colloidal solution. The inner core includes the following components in the indicated mass percentages: calcium lactate 1%-2%, calcium chloride 0.05%-0.1%, white sugar 20%-30%, guar gum 0.01%-0.03%, xanthan gum 0.1%-0.2%, gellan gum 0.01%-0.05%, cream cheese 10%-20%, citric acid 0.2%-0.4%, and caviar 2%-5%, with the balance being water. By using a combination of xanthan gum, guar gum, and gellan gum, caviar can adhere to popping boba particles using the compounded colloids. Gellan gum provides good viscosity and gel strength. When used in combination with xanthan gum and guar gum, the viscosity of xanthan gum has a synergistic effect on the entire colloid system. By controlling the amount of guar gum, xanthan gum, and gellan gum, the adhesion of caviar particles can be ensured, while preventing excessive gellan gum from hardening the surface of the popping boba and ensuring the taste of the finished product.

This utility model discloses a reaction vessel for accelerating the synthesis of rare earth compounds, including a gas distribution and injection assembly located at the bottom of the vessel body. The gas distribution and injection assembly includes an annular porous distributor and an inlet pipe penetrating the vessel wall. The two ends of the inlet pipe are connected to the annular porous distributor and an external gas source, respectively. The top of the annular porous distributor has several uniformly distributed variable-diameter nozzles. From bottom to top along the vertical axis, each nozzle is divided into an inlet section, a straight-mouth section of equal diameter, and an outlet section. Both the inlet and outlet sections have a trumpet-shaped structure, and the straight-mouth section has an inner diameter consistent with the inner diameter of the bottom end of the inlet section and the inner diameter of the top end of the outlet section. This improves the efficiency and uniformity of the synthesis reaction and prevents material adhesion and scale formation.

The utility model relates to the field of chromium-free passivation agent processing technology, concretely is a kind of chromium-free passivation agent mixed quantitative feeding device, including mixing tank, the top of mixing tank is provided with quantitative filling structure, and mixing structure is provided in mixing tank, and the bottom of mixing tank is fixedly connected with feeding valve, quantitative filling structure includes the fixed seat that can be clamped in the top of mixing tank, two feeding channels are symmetrically set up on fixed seat, and the sealing adjusting slider of position adjustable is sealing sliding fit in two feeding channels, and the quantitative hopper is fixedly installed on the upper side of two feeding channels relative side, the inner bottom of quantitative hopper is sealingly rotatably connected with the rotary cylinder, which is provided with feeding port in bottom, and dredging mechanism is connected on rotary cylinder, the utility model dredges conveniently when filling, avoids the phenomenon that the hardening is formed, improves the smoothness of filling.

This invention relates to the field of cable technology, specifically to a processing technology for high-temperature resistant, ultra-flexible motor lead wires. The process involves preparing two types of hexagonal boron nitride fillers with different surface properties through hydroxylation and silane modification, and applying them in separate layers of a three-layer insulating compound. Combined with a polysiloxane alkyl body with increasing phenyl content from the inside out, flexible single-end segments on the inner side, and a differentiated crosslinking agent / inhibitor system, the lead wire is obtained through three-layer co-extrusion and multi-stage temperature-increasing vulcanization. This process solves the problems of decreased flexibility, poor bending reliability, and easy failure of interlayer interfaces caused by high phenyl / high filler content in traditional methods, achieving a balance between high-temperature resistance, ultra-flexibility, and stable electrical performance.

This utility model relates to the technical field of racing engine intake systems, and more particularly to a high-response racing carburetor dual-chamber throttle valve, including a body. The top of the body has a main chamber and a secondary chamber, which fit together. An installation groove is provided inside the body, and a rotating gear is rotatably connected in the installation groove. A reduction gear meshes with the outer wall of the rotating gear, and an incomplete gear meshes with the outer wall of the reduction gear. A connecting post is fixedly connected to the axial end of the reduction gear facing the main chamber. Two evenly distributed connecting gears are fixedly connected to the circumferential surface of the connecting post. A micro motor drives the rotating gear, which in turn drives the connecting rod to rotate via the reduction gear and the incomplete gear, controlling the opening and closing of the throttle flaps in the main and secondary chambers. Each time the throttle flaps open, a scraper scrapes away carbon deposits from the inner walls of the main and secondary chambers, promptly removing carbon deposits and preventing them from hardening over time. This improves the safety and reliability of the device, and the scraper cleaning action requires no additional intervention, making it suitable for racing car use.

This utility model relates to the field of filter bag technology and discloses an anti-caking dust collector filter bag, including a bottom plate, a telescopic component at the top of the bottom plate, a top plate at the top of the telescopic component, a dust collector filter bag inside the mounting groove, a transmission component at the bottom of the bottom plate, and a plurality of anti-caking impact components between the bottom and top of the bottom plate. This utility model, through the coordinated arrangement of the transmission component and the plurality of impact components, starts a motor to drive a rotating rod and a gear to rotate clockwise. At this time, each gear engages with a second gear and rotates counterclockwise. Each second gear can drive each rotating rod and the impact head to rotate counterclockwise. After the impact head contacts the dust collector filter bag, it achieves a striking and vibrating effect on the dust collector filter bag, facilitating the falling of caking particles attached inside the dust collector filter bag, thereby preventing dust from accumulating on the inner wall of the dust collector filter bag and causing caking, thus avoiding the filtration effect of the dust collector filter bag due to caking.