16results about How to "Avoid chemical reactions" patented technology

The utility model discloses a reaction furnace and a recovery system, and relates to the technical field of chemical equipment. The reaction furnace comprises a furnace body, a crucible and an isolation protection layer, the crucible and the isolation protection layer are both arranged in the furnace body, the isolation protection layer is arranged in the crucible, a reaction chamber is formed in the isolation protection layer, and the reaction chamber is used for containing reactants; the reaction furnace heats reactants in the reaction chamber through the crucible, and the isolation protection layer is used for separating the reactants in the reaction chamber from the crucible. The scheme at least can be used for improving the process quality of the reaction furnace.

This invention provides a surface acoustic wave (SAW) filter, comprising a piezoelectric layer and interdigitated electrodes. The interdigitated electrodes are disposed on the piezoelectric layer and include at least a first metal layer and a second metal layer stacked together. The first metal layer is made of platinum or an alloy with platinum as the main component, and the second metal layer is made of aluminum or an alloy with aluminum as the main component. By setting the material of the second metal layer to aluminum or an alloy with aluminum as the main component, the uniformity of metal coverage of the electrode structure can be effectively improved, avoiding excessive local resistance or structural defects caused by poor coverage. Setting the material of the first metal layer to platinum or an alloy with platinum as the main component provides reliable support for the second metal layer, reducing the risk of deformation or corrosion of the aluminum layer in subsequent processes. By using a stacked structure of two complementary materials for the interdigitated electrodes, both structural miniaturization and improved overall electrical performance and structural reliability of the interdigitated electrodes are achieved.

The utility model relates to the technical field of compressor heat dissipation, and discloses a heat dissipation case for a compressor, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a liquid cooling mechanism, the top of the bottom plate is provided with a filtering mechanism, and the top of the bottom plate is fixedly connected with a case body. The bottom of the liquid cooling mechanism is detachably connected to the top of the filtering mechanism, the filtering mechanism comprises a sewage storage tank, the outer wall of the sewage storage tank is fixedly connected with a limiting ring, the inner wall of the limiting ring is detachably connected with a limiting rod, and the top of the limiting rod is fixedly connected with a sliding rod; the outer wall of the sliding rod is slidably connected with a mounting box, and the inner wall of the mounting box is fixedly connected with a fixing ring. According to the utility model, the sewage discharging assembly for discharging impurities in the cooling liquid is additionally arranged, so that the cooling liquid can be ensured to circulate at designed flow, chemical reaction between the impurities and the cooling liquid can be avoided, the cooling liquid is prevented from going bad, and the service life of the cooling liquid is prolonged.

The utility model belongs to the technical field of crystal conveying, and particularly relates to a crystal conveying device which comprises a supporting frame, a hollow arc-shaped plate is installed on one side of the supporting frame, a spray head is installed on one side of the hollow arc-shaped plate, a gas conveying pipe is installed on one side of the hollow arc-shaped plate, one end of the gas conveying pipe is connected with a gas box, and the other end of the gas box is connected with a gas pump. A vacuum pump is installed on the upper surface of the gas box and connected with a gas conveying pipe. Dust-free gas is blown to the surface of the inner tooth conveying belt through a spray head, residues on the surfaces of the inner tooth conveying belt and the circular truncated cone can be blown into a collecting box through the blowing of the dust-free gas, the residues can be adsorbed through adsorption sponge, the adsorption sponge is matched with exhaust holes, and the situation that the residues are driven by wind to expand outwards again is reduced; therefore, the cleanliness of the inner tooth conveying belt and the circular truncated cone in the crystal conveying process is improved, the situation that chips on the surface of the molten crystal chemically react with follow-up different types of crystals is avoided, and the crystal conveying quality is improved.

The utility model discloses a kind of wastewater treatment systems of circuit board gold sinking technology, including wastewater classification collection component, for classifying storage nickel-containing wastewater, phosphorus-containing wastewater and cyanide-containing wastewater, be set at the most front end of wastewater treatment system, including nickel-containing wastewater tank, phosphorus-containing wastewater tank and cyanide-containing wastewater tank.The utility model realizes the accurate classification storage of nickel-containing, phosphorus-containing, cyanide-containing wastewater by wastewater classification collection component, effectively avoid the chemical reaction caused by wastewater mixing, improve the processing security.Nickel-containing wastewater tank, phosphorus-containing wastewater tank and cyanide-containing wastewater tank cooperate with first solenoid valve and main bus pipe, realize automatic drainage control by control module, reduce manual operation, improve processing efficiency.Inflow pipe is equipped with flow control valve, accurately adjusts wastewater inflow, avoids overflow or equipment overload.

This utility model discloses a storage tank for chemical production, including a lower tank body. An upper tank body is hinged to the upper surface of the lower tank body. A hopper is connected to the outer surface of the upper tank body, and a protective assembly is hinged to the upper surface of the hopper. Two lifting rods are connected to the outer surface of the upper tank body. A sealing valve is provided on the inner wall of the lower tank body. This utility model uses a stirring assembly to continuously stir the material inside the tank, preventing sedimentation and stratification of chemical materials during storage, ensuring uniform and stable material properties, and providing quality assurance for subsequent production processes. The discharge assembly and sealing valve effectively prevent material accumulation, improve discharge efficiency, and reduce material waste caused by incomplete discharge. The lifting rods and upper tank body effectively separate the upper and lower tank bodies, facilitating cleaning of the tank interior and preventing chemical reactions, contamination, or impact on purity caused by mixing residual material with new material.

The invention relates to a separation device for brake dust generated by a wheel brake of a motor vehicle, the separation device being designed to be arranged on a wheel of the motor vehicle in a rotationally fixed manner and the separation device having a flow path, the flow path has at least one first part with a first flow direction and a second part with a second flow direction, the first part adjoins the second part in a boundary region, and the second flow direction forms an angle of at least 45 DEG, preferably at least 60 DEG and particularly preferably at least 90 DEG with the first flow direction, wherein the separating device has a pressure difference generating element for generating a pressure difference between an inlet pressure at the inlet of the flow path and an outlet pressure at the outlet of the flow path, and wherein a collecting section for braking dust is arranged between the boundary region and the outlet of the flow path. The invention further relates to a wheel for a motor vehicle having such a separating device and to a motor vehicle having such a separating device or having such a wheel.

The application discloses an explosion-proof lithium battery, which comprises a shell and a cover plate, an electrode cap is installed on the cover plate, a partition plate is arranged in the shell and divides an inner cavity of the shell into a first chamber and a second chamber, the first chamber is used for storing an electric core and electrolyte of the battery, an exhaust valve and a gas storage chamber are arranged in the second chamber, the electric core comprises an electrode column extending into the gas storage chamber, a diaphragm which deforms with pressure is arranged in the gas storage chamber, a power supply switch for connecting or disconnecting the electrode cap and the electrode column is arranged on the diaphragm, the exhaust valve comprises a first valve core between the first chamber and the gas storage chamber and a second valve core for exhausting gas in the gas storage chamber, gas in the first chamber in an overcharged state enters the gas storage chamber, the diaphragm deforms, the movement of the power supply switch is driven, the electrode cap is connected or disconnected with the electrode column, the power supply from an external power supply to the lithium battery is blocked, and the safety of the lithium battery during charging is improved, and explosion of the lithium battery is prevented.

This invention discloses a corrosion-resistant, high-efficiency PTFE heat exchanger, relating to the field of PTFE heat exchanger technology. It includes a heat exchange shell section, inside which a PTFE heat exchange device is installed for protection against chemical reactions. A water inlet control component and a drain control component are installed on the heat exchange shell section. Both the water inlet and drain control components are equipped with passage retainers. A pressurization auxiliary component is installed on the heat exchange shell section. The use of PTFE tubing in conjunction with an internally installed rubber tube improves the safety of PTFE tube heat exchange, preventing chemical reactions caused by leaks and reducing costs due to equipment corrosion. This addresses the problem of significant safety hazards and poor protection in current corrosion-resistant, high-efficiency PTFE heat exchangers when leaks occur.

This utility model discloses a stable pole-mounted circuit breaker, which includes a mounting plate and a pole-mounted circuit breaker body. The pole-mounted circuit breaker body has mounting portions on both sides. The mounting plate has a first recessed cavity with an opening to accommodate the mounting portions, and a second recessed cavity corresponding to the first recessed cavity is provided on the back of the mounting plate. Pressure plates are inserted into the first and second recessed cavities, with one pressure plate abutting against the mounting portion. The pressure plates are configured as an integrated structure. The pressure plates abut against the sidewalls of the recesses to reduce the lateral swaying of the pole-mounted circuit breaker body. A grooved locking fastening assembly and a second protective assembly using spring force improve connection reliability and pre-tightening force. Simultaneously, the first and second protective assemblies block humid air, water vapor, and rainwater, preventing corrosion and rust of the fastening components, ensuring their strength and fastening performance, reducing the risk of loosening, and improving the product's protective performance.

The utility model relates to the field of chemical engineering, and discloses a storage device for chemical engineering, which comprises connecting plates, two groups of connecting plates are arranged, four groups of supporting frames are fixedly connected between the two groups of connecting plates, placing plates are in contact among the four groups of supporting frames, adjusting assemblies are arranged on the inner walls of the placing plates, and the adjusting assemblies are arranged on the inner walls of the placing plates. The adjusting assembly comprises a sliding plate, an inclined groove is formed in the surface of the sliding plate, and a protruding block is slidably connected to the inner wall of the inclined groove of the sliding plate. According to the utility model, the sliding plate moves back and forth to drive the convex block to linearly move through the chute, and the insertion block is pulled to be inserted into or separated from the slotted hole of the support frame through the hinge rod, so that the placement plate can be unlocked and locked without a tool, the accurate clamping of the insertion block is ensured by the automatic reset function of the reset spring, and the adjustment process only needs one-hand operation; the adjusting time is greatly shortened, and the storage requirements of chemicals with different heights are met.

The present application belongs to the technical field of gas supply system, especially to the gas container gas supply system and method, the system comprises a plurality of storage cavities, the storage cavity is provided with a clamping mechanism, the mechanism can exert vertical pressure from the bottle shoulder and simultaneously clamp from the side, realize the stable fixation of the gas storage tank, the round groove is provided with a connecting head, the outer wall of the gas storage tank valve handle is provided with a clamping groove, the outer wall of the gas outlet end is provided with a fixing ring with a specific shape insertion hole, the matching mechanism comprises a pin rod which can be inserted into the clamping groove, only when the mounting ring at the bottom of the connecting head and its pressure rod and the insertion hole of the fixing ring are correctly matched and pressed, the pin rod can be driven to rotate and separate from the clamping groove, allowing the valve handle to open, thereby preventing gas connection error, the gas supply system improves the stability of the fixation of the gas storage tank, avoids gas misconnection, and enhances the adaptation ability of the output interface.

The utility model relates to filling equipment technical field discloses a kind of acidifier filling equipment, including conveyer belt, the conveyer belt side is connected with baffle by drive arrangement, the left and right sides of conveyer belt are evenly provided with fixed frame, electric telescopic rod is fixedly connected in the middle part inboard of fixed frame, the driving end of electric telescopic rod is fixedly connected with clamping plate, electric chute is provided in the inboard of fixed frame upper end, the inner wall of electric chute is slidably connected with slider, the inboard lower end of slider is fixedly connected with fixed plate, the middle part of fixed plate is fixedly connected with filling head, the outer wall of filling head lower end is fixedly connected with conical rubber cover.In the utility model, by injecting argon to create an oxygen-free environment, effectively inhibit acidifier volatilization and prevent its oxidation, to protect product stability. Through the linkage of each component to realize automatic clamping, filling and release, baffle rotation synchronously completes pushing and interception, realize continuous production, and waste gas centralized treatment, give consideration to efficient and environmental protection.

The utility model relates to the technical field of aluminized film, a novel aluminized film slitting machine, including the pivot, the pivot peripheral movable setting has the slitting wheel, the pivot two symmetrical distribution's depositing groove, pivot outer wall has established several fixed slots, the pivot inner wall is provided with the liquid storage tank, the liquid storage tank inside is provided with the water circulation subassembly for the slitting wheel cooling, fixed slot inside slide setting has the fixed block, the fixed block inside is provided with the restriction component for the slitting wheel fixed in the pivot inside. The utility model discloses through the liquid storage tank and water circulation subassembly in the pivot inside, has realized the cooling of slitting wheel, and the coolant realizes closed -loop flow through water circulation subassembly, effectively absorbs the high temperature generated in the slitting process, avoids the aluminized film and the slitting knife to take place chemical reaction because of temperature excessively high, thereby prevents the surface damage of aluminized film and the generation of toxic gas, has promoted the slitting accuracy and product quality stability.

The invention belongs to the technical field of precoated sand, and discloses heat-resistant precoated sand and a preparation method and application thereof.The heat-resistant precoated sand is prepared from, by weight, 100 parts of aggregate, 0.2-0.5 part of agglutinant, 0.16-0.3 part of curing agent and 2-5 parts of phenolic resin; the sintering agent comprises an active agent and an accelerant, the active agent comprises silica powder, and the accelerant comprises magnesium oxide powder. The silica powder and the magnesium oxide powder are used as sintering agents to wrap aggregate, latent heat is released during solidification of molten metal during casting manufacturing, the temperature of a sand core is gradually increased to 800 DEG C or above, the activity of the silica powder in the sintering agents is released in a high-temperature state, sand grains can be promoted to be sintered into a compact protection layer under the fluxing action of an accelerant MgO, and the casting quality is improved. The high-manganese steel material can be prevented from making contact with aggregate, the situation that sand is burnt on a casting is avoided, the thermal stress of the casting can be effectively released through the sintering layer, the thermal stability and thermal shock resistance of the casting are improved, the casting cracking risk is reduced, and the product yield is increased.