81 results about "Chamber design" patented technology

The present invention discloses a packaging shell protection structure for a temperature sensor, which belongs to the field of sensor technology and includes a packaging shell. A dual PT temperature sensor and a PE vibration sensor are provided in the packaging shell. The packaging shell includes a probe end, a connection end, and a sensor conversion end. The probe end includes a probe temperature sensing cover, a central partition mounting member is provided in the probe temperature sensing cover, and a vibration test probe is provided at the end of the probe temperature sensing cover. The present invention completely avoids the problem of the vibration core squeezing the PT sensor lead in traditional assembly by fixing the PE integrated circuit board and the internal control column threading hole through a U-shaped card slot, significantly improving the product molding quality and long-term stability, increasing the electrical gap, and enhancing the insulation withstand voltage performance. Two sets of platinum resistance temperature sensing elements are used in conjunction with a temperature isolation chamber design. The sensors are quickly switched through a magnetic control system without waiting for temperature recovery, and the response speed is greatly improved. The dual sensor data are mutually calibrated to improve the temperature measurement accuracy and reliability.

This application relates to the field of fermenters, specifically a high-efficiency insulated fermenter. The fermenter comprises a closed fermentation chamber formed by the fitting of tank walls. This closed fermentation chamber has an inlet and an outlet, and multiple temperature sensors are axially arranged within the fermentation chamber. The tank wall adopts a five-layer composite structure, comprising, from the inside out: a material contact layer, a heat storage and temperature control zone, a main insulation layer, a vacuum insulation layer, and an outer protective layer. The heat storage and temperature control zone employs a multi-chamber design and is equipped with an independent temperature control actuator. The vacuum insulation layer and the outer protective layer work synergistically to maximize the suppression of heat conduction. This fermenter, by optimizing the tank wall structure, improves the temperature control accuracy and insulation performance during the fermentation process, ensuring uniform and efficient fermentation of the material within the closed fermentation chamber. The tank wall is composed of a multi-layer composite structure.

A portable linear fastener driving tool is provided that drives staples, nails, pins, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston / driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston further compresses the gas above the piston, thereby preparing the tool for another driving stroke. In an illustrated embodiment, the tool exhibits an inverted U-shape tri-chamber design for the central cylinder, a left-side pressure chamber, and a right-side pressure chamber. In one illustrated embodiment, the lifter motor is configured to have its longitudinal axis substantially parallel to the longitudinal axis of the working cylinder, thereby making this tool more compact. Other embodiments show the angle to be between 0-90 degrees.

The utility model provides a liquid expansion mandrel fixing device for processing a hard chromium plated ball, which belongs to the technical field of hard chromium plated ball processing, and comprises a mandrel main body, and the inner part of the mandrel main body is divided into cavities and is used for realizing uniform expansion; a filling hole is formed in one side of the core shaft main body and is used for filling a hydraulic medium into the core shaft main body; a sealing screw is arranged at an opening of the filling hole; an expansion chamber and a compression chamber are arranged in an inner cavity of the mandrel body, the compression chamber is arranged on one side of a center shaft of the mandrel body, and a linkage structure is arranged in the compression chamber and used for clamping a ball. The utility model provides a liquid expansion mandrel fixing device for processing a hard chromium plated ball, which can solve the problems that the clamping force is concentrated on a local area and a plating layer is easy to crush due to the single-cavity design of the existing liquid expansion mandrel.

The multifunctional treatment device comprises a cleaning machine shell, the cleaning machine shell is a cavity shell of a rectangular structure, a water feeding opening is formed in one side of the cleaning machine shell, a master pump machine is assembled in the water feeding opening, the exterior of the water feeding opening is connected with a water supply pipe, and the water supply pipe is connected with a water pump. The cleaning machine shell is provided with a first cleaning chamber and a second cleaning chamber. The multifunctional treatment device relates to the technical field of traditional Chinese medicine treatment, adopts the design of double cleaning chambers, performs different cleaning operations according to different task types, adopts the same master control to control the double cleaning chambers, and is more compact in structure and more convenient to use. And an ultrasonic auxiliary cleaning effect and a cleaning water stirring effect are correspondingly set, so that the cleaning is more convenient, the cleaning water stirrer can be controlled to work according to task requirements, and more energy conservation and environmental protection are achieved.

The invention relates to the technical field of installation of electrical equipment such as transformers, in particular to an oil-oil sleeve ascending flanged base and an oil pressure balance adjusting system and method.The oil-oil sleeve ascending flanged base comprises an ascending flanged base oil chamber, a separation sealing structure, a bypass oil pipe and a pressure valve, the separation sealing structure is arranged on an oil-oil sleeve in a sleeving mode, and one end of the separation sealing structure is connected with the ascending flanged base oil chamber; and the other end is connected with the transformer oil tank body to effectively isolate the ascending flanged base oil chamber from the transformer oil tank body. The independent oil chamber design avoids the problem of insulating oil mixing caused by direct communication of a transformer oil tank and an oil chamber in the ascending flanged base in a traditional structure, so that the risk of mutual influence caused by oil quality degradation on one side is greatly reduced, the insulating performance of transformer oil is guaranteed, the service life of a transformer is prolonged, and the service life of the transformer is prolonged. The operation reliability of the transformer is improved, and the problems of insulating oil separation and oil pressure balance of an existing oil-oil sleeve ascending flanged base and a transformer oil tank are solved.

The invention relates to the technical field of coating processing, and discloses a gas supply device for supplying special gas to a coating cabin, the device mainly comprises a main special gas holder, a standby special gas holder, a pre-filled buffer tank and a gas flow dispersion component, the main special gas holder and the standby special gas holder are connected with the pre-filled buffer tank through a pneumatic three-way valve to form a double-gas-source gas supply system; when the pressure of the main special gas holder is insufficient, the pneumatic three-way valve is automatically switched to the standby special gas holder, the pre-filled buffer tank preferentially releases stored high-pressure gas in the process, gas is continuously supplied to the coating cabin through the gas supply main pipe, and the problem of gas pressure fluctuation caused by valve switching in the traditional design is completely avoided. The pre-filled buffer tank adopts a coaxial double-chamber design and comprises a high-pressure chamber on the outer layer and a pressure stabilizing chamber on the inner layer, the high-pressure chamber is connected with a pneumatic three-way valve, the pressure stabilizing chamber is communicated with the coating cabin through a gas supply main pipe, an annular metal isolation plate is arranged in the pressure stabilizing chamber, and automatic balance of gas pressure is realized through an automatic adjusting mechanism.

The vapor chamber (1) has a flat-plate-shaped housing (50) in which an internal space (20) is formed, and the housing (50) has formed therein: a heat-receiving section (3) that receives heat from a heat source body (2), a vapor flow path (5) through which a refrigerant (CO) vaporized in the heat-receiving section (3) moves, and a capillary flow path (4) through which the refrigerant (CO) liquefied by heat dissipation is conveyed to the heat-receiving section (3) by means of a capillary force. A plurality of spacers (42) for reinforcing the housing (50) are arranged in the internal space (20) along the surface direction of the housing (50). When [delta] c [mm] is the allowable amount of bending deformation of the housing (50), E [N / mm2] is the longitudinal elastic coefficient of the housing (50), I [mm2] is the moment of inertia of the cross section of the housing (50), and w [N / mm] is the uniform load applied to the housing (50) per unit length due to the internal pressure or external pressure generated in the internal space (20), [delta] c [mm] is the allowable amount of bending deformation of the housing (50), E [N / mm2] is the longitudinal elastic coefficient of the housing (50), I [mm2] is the moment of inertia of the cross section of the housing (50), and w [N / mm] is the uniform load. The distance (Lsp [mm]) between the spacers (42) and the joining protrusions (17) that are adjacent to each other is defined so as to satisfy the following formula.

The invention discloses a porous nozzle combustor and a targeted adding combustion device of a cement kiln, and solves the problem that stable production of the cement kiln is affected due to non-uniform heat distribution caused by complex and changeable properties of alternative fuels in the prior art. The multi-hole nozzle combustor comprises a feeding cavity and a mixed spraying cavity which are connected, a multi-hole nozzle is arranged at the outlet end of the feeding cavity and comprises a center gas nozzle and a plurality of side nozzles, the side nozzles are distributed on a circle with the center gas nozzle as the center, a ventilation pipeline is arranged in the feeding cavity, and the mixed spraying cavity is communicated with the center gas nozzle. The ventilation pipeline is communicated with the central gas nozzle, and the side nozzles are communicated with the feeding chamber; and flow guide fins are arranged in the mixed spraying chamber and are spirally arranged by taking the central gas nozzle as a circle center. According to the porous nozzle burner, optimized nozzle layout and mixed spraying cavity design are adopted, and pyrolysis gas and solid products are promoted to be fully mixed; the flow guide fins spirally arranged in the mixed spraying cavity enable pyrolysis gas to form rotating gas flow, the rotating gas flow violently collides and wraps solid particles, a stable and efficient combustion gas-solid flow state is formed, and the combustion stability is improved.

This utility model discloses a precision fertilizer application device for agriculture, which includes a main frame, a hopper, and at least one fertilizer application mechanism. The main frame has a traction rod at its front end for connecting to a tractor, wheels in the middle, and a hopper fixed to the top by a support rod; the bottom of the hopper is connected to a discharge pipe. The fertilizer application mechanism includes a base plate, a discharge assembly, a wheel, a shaft, a vertical plate, and a motor. The discharge assembly consists of two interlocking circular shells forming a cavity with an inlet and an outlet; the wheel is coaxially positioned within the cavity, with radial partitions equidistantly spaced along its arc-shaped outer edge, forming independent chambers separated from the inner wall of the shells. This independent chamber design forcibly separates the fertilizer, eliminating pulsed fertilizer application and significantly reducing the fluctuation rate of the unit fertilizer application rate; the motor speed corresponds linearly to the fertilizer application frequency, adapting to real-time tractor speed changes to ensure precise "one fertilizer per hole" positioning; the interlocking shells are quickly disassembled and reassembled with bolts, facilitating the cleaning of compacted fertilizer and reducing the risk of bearing corrosion failure.

The utility model relates to food processing machinery technical field discloses a snowflake chicken fillet forming die, including frame, the top of frame is slidably installed with telescopic processing platform, the top of frame is fixed with mounting bracket, the inside installation of mounting bracket has extrusion pneumatic cylinder, the other end of extrusion pneumatic cylinder is connected with the lower press frame that penetrates mounting bracket, the top of extrusion pneumatic cylinder is fixed with top plate, the inside of mounting bracket both sides is all fixed with support rod. This snowflake chicken fillet forming die, through first placing lower mould on telescopic processing platform, moving telescopic processing platform to lower mould below, through extrusion pneumatic cylinder to push lower press frame to press down, and push upper mould to extrude lower mould, utilize the snowflake chicken fillet shape of upper mould inner chamber design, ensure that the raw material in lower mould keeps size shape uniformity, improve the appearance quality and standardization degree of product, improve production efficiency, reduce artificial cost, be suitable for large -scale industrialized production.

The invention relates to the technical field of labeling inspection devices, and discloses a labeling inspection device for packaging spleen aminopeptide freeze-dried powder finished products. Comprising a packaging bottle conveying belt, a detection assembly, a receiving and feeding assembly, a material distributing cavity, a telescopic material blocking plate, a material guiding plate, a material stirring block, a qualified product conveying belt, a width adjusting assembly, an arc-shaped material guiding channel, an elastic buffering cover, a finished product conveying belt and a packaging bottle limiting base, and the detection assembly is installed on a conveying path of the packaging bottle conveying belt; the receiving and feeding assembly is arranged at the discharging end of the packaging bottle conveying belt. By integrating various detection means such as an industrial camera, a bar code scanner and a color sensor, all-directional detection of packaging bottle labeling is achieved, and it is ensured that the labeling quality meets the standard. And meanwhile, qualified products and defective products are automatically separated, the sorting efficiency is greatly improved, and manual intervention is reduced. A double-layer material distribution cavity design is adopted, and products of different qualities are collected through a finished product material passing layer and a defective product storage layer respectively.

The invention relates to the technical field of stress simulation, and discloses a movable fire resistance test furnace with a stress simulation device, which comprises a test furnace, a first test tank and a second test tank, a tension test rod and a torsion test rod are symmetrically arranged in each of the first test groove and the second test groove, a driving assembly and a clamping assembly are arranged in the test furnace, and the driving assembly comprises eight positioning blocks; through the design of the double independent test grooves, different temperatures or the same tensile force can be synchronously applied, a contrast test can be carried out on two samples, and contrast data of fire resistance and stress performance can be rapidly obtained. Self-adaptive adjustment is achieved through cooperation of the helical tooth transmission rod and the arc-shaped helical rack set, even if one side of the special-shaped sample is clamped firstly, the clamping plate on the other side can still be driven to continuously move till the special-shaped sample is stably fixed, the clamping universality and stability are greatly improved, and it is guaranteed that the special-shaped sample is stressed in a balanced mode in the testing process.

The invention belongs to the technical field of power system stability analysis, and particularly discloses a pumped storage power station stability analysis and surge chamber design optimization method, which comprises the following steps of: constructing a plurality of nonlinear mathematical models of different surge chamber arrangement forms; determining the stability domain of the nonlinear mathematical model in the speed regulator parameter space based on the bifurcation theory and the time-varying six coefficients; comparing the size and range of the stability domain of the nonlinear mathematical model in the arrangement form of the upstream series double surge chambers and the upstream and downstream double surge chambers to obtain a comparison result; preliminarily screening an arrangement form providing a maximum stability domain as a candidate scheme based on a comparison result; and carrying out dynamic response process analysis on the candidate scheme, determining a target arrangement form with a maximum stability domain and optimized dynamic response characteristics, and obtaining a final optimized design scheme. By means of the method, potential safety risks and later high transformation cost can be avoided, and the operation stability of the pumped storage unit under the complex working condition is improved.

The utility model discloses a steam turbine high pressure cylinder rear shaft seal body and contain the shaft seal body's axle end seal structure, wherein, steam turbine high pressure cylinder rear shaft seal body includes the shaft seal main part, the annular seal key of section is L type, steam turbine high pressure cylinder rear axle end seal structure includes end take steam seal body, and rear shaft seal body, and the inner wall of end take steam seal body, and every circle steam seal block installation groove all have inserted steam seal block, form SSR chamber between second compartment and steam cylinder body, and form CF chamber between end take steam seal body, shaft seal main part, rotor axle and steam cylinder body. Advantage: the utility model sets up two independent chambers of SSR chamber and CF chamber, effectively reduces the pressure that end take steam seal body suffered, and steam leakage amount is reduced greatly, breaks through the steam leakage bottleneck of traditional single chamber design, and L type seal's metal face contact is matched with steam cylinder body seal groove, can adapt to steam cylinder body thermal deformation, maintains the stability of sealed clearance, avoids the clearance increase due to deformation.

The utility model belongs to the technical field of aging instrument equipment, and particularly relates to a thermal desorption tube aging instrument which comprises an aging oven, a heating module and a gas path system, the aging oven is of a split type and comprises a lower fixing box and an upper mounting cover. The upper mounting cover comprises a mounting plate, an arc-shaped groove and at least two hook parts; the arc-shaped groove is formed in the lower surface of the mounting plate and is used for embedding the adsorption pipe; the hook parts are distributed on the peripheral side of a notch of the arc-shaped groove and are used for jointly supporting the same adsorption pipe; the lower fixing box comprises a fixing plate and a groove formed in the upper surface of the fixing plate. According to the utility model, through the design of the split type aging oven, one lower fixing box corresponds to a plurality of upper mounting covers during actual aging operation, so that the purpose of quickly mounting / removing the adsorption tubes of the same upper mounting cover can be achieved no matter before cleaning or after cleaning, the preparation time before cleaning and after cleaning is greatly shortened, and the production efficiency is improved. The operation process is simplified, and meanwhile the working efficiency is improved.

This application relates to the field of soft oxygen chamber design, and provides a composite cabin fabric structure for the transparent window of a soft oxygen chamber. The structure includes two transparent outer layers and a mesh interlayer sandwiched between the two transparent outer layers. The mesh interlayer has multiple mesh openings, the width of which gradually increases from one side of the mesh interlayer to the other. In the assembled state, the narrowest opening of the mesh opening is located on the side of the soft oxygen chamber closest to the outside. Based on this, user privacy can be protected during the use of the soft oxygen chamber, making it valuable for promotion and application.

This invention discloses a high-temperature test chamber with controllable oxygen concentration. The chamber comprises a test chamber and an external gas supply system. The test chamber includes an outer chamber, an inner chamber, and a lid. The inner chamber is located inside the outer chamber, and the lid seals both the outer and inner chambers. The outer walls and bottom of the inner chamber are fixedly connected to the outer chamber via multiple evenly distributed connecting blocks, forming an insulated cavity between the two chambers. A pressure balancing mechanism is installed inside the inner chamber. This test chamber offers high flexibility and, in practical operation, can effectively detect changes in oxygen concentration and temperature. The inner and outer chamber design effectively improves the insulation effect of the test chamber, reducing heat loss. Furthermore, the pressure balancing mechanism enhances the safety of the test chamber during actual use.

The utility model relates to the technical field of fluid mixing, in particular to a steam-water mixing silencing ejector. The device comprises a main channel, a gas inlet and a fluid inlet, the gas inlet is located at the front end of the main channel, the rear portion of the gas inlet is fixedly connected with a nozzle and arranged in a receiving chamber, the fluid inlet is located above the main channel, and the receiving chamber is arranged at the joint of the main channel, the gas inlet and the fluid inlet. And a flow collecting chamber, a first mixing chamber, a flow dividing chamber, a second mixing chamber and an expansion chamber are sequentially arranged behind the receiving chamber. Multiple sets of first mixing blades are rotationally connected into the first mixing cavity, multiple sets of second mixing blades are rotationally connected into the second mixing cavity, the inclination angle of the second mixing blades is smaller than that of the first mixing blades, and the number of the blades is larger than that of the first mixing blades. According to the ejector, through the multi-cavity design and the arrangement of the mixing blades, steam and water are in full contact, the stirring and mixing effects are enhanced, efficient and uniform mixing is achieved, and meanwhile the noise level is effectively lowered through reasonable cavity layout and component arrangement.

The utility model relates to the technical field of purification devices, and discloses a calcium carbide furnace tail gas mixing type purification device which comprises a purification chamber, a partition plate is fixedly connected to the inner wall of the purification chamber, a filtering assembly is arranged at the top end of the inner wall of the purification chamber, and a connecting pipe is fixedly connected to the bottom end of the partition plate. An air inlet pipe is fixedly connected to the outer wall of the connecting pipe, bent pipes are fixedly connected to the two ends of the connecting pipe, piston rods are arranged at the bottom ends of the bent pipes, plugs are fixedly connected to the top ends of the piston rods and used for plugging the bent pipes, and linkage assemblies are arranged at the bottom ends of the piston rods and used for connecting the bent pipes with the connecting pipe. The outer wall of one piston rod is connected with the bent pipe through a lifting assembly. According to the utility model, the purification device adopts a multi-chamber design, and when the solution and the activated carbon layer are replaced, the plug is matched with the piston rod to realize non-stop operation, so that the purification continuity is guaranteed, the efficiency is improved, and the pollution is reduced. Meanwhile, part abrasion is relieved through segmented relay purification, the service life of the device is prolonged, and the maintenance cost is reduced.

The invention belongs to the technical field of zero carbon / negative carbon park negative carbon, and discloses direct air carbon capture equipment, a process flow and a control method, the equipment comprises a low energy consumption adsorption unit, a heat and vacuum coupling desorption enrichment unit, a gas storage unit, an automatic control unit and an energy comprehensive supply unit. The invention aims to provide a device for preparing high-purity CO2 by direct air carbon capture based on an alkali metal-based adsorption material. The technical core is to design two closed desorption enrichment units: an improved concave-convex tabletting shutter valve and high-pressure low-temperature steam form mechanical and gas dual isolation; the concentrated tunnel type desorption chamber designed for the adsorption material module is provided with high-pressure and low-temperature steam blowing, a turbulent flow fan and a single outlet / inlet sealing door. According to the direct air carbon capture device and process, the technical problems that CO2 is difficult to enrich, low in purity, high in cost and energy consumption, limited in scale and the like are effectively solved.

The invention discloses a downward moving type conical diaphragm jigger, which relates to the technical field of preparation equipment and comprises a rack, a first-stage jigging chamber box body, a second-stage jigging chamber box body, two excitation system screens, two tailing channels, two vertically adjustable gate mechanisms, a screening channel excitation system, two drum membranes, a seesaw frame, an eccentric connecting rod mechanism and a motor. According to the downward moving type conical diaphragm jigger, through the overall compact structure matching design, the occupied area is small, efficient mineral separation is achieved, through the unique seesaw linkage structure and the serial jigging chamber design, operation is stable and reliable, maintenance is convenient, long-term fault-free operation can be achieved, and through the combination of the two-stage jigging function and the screening function, the working efficiency is improved. Minerals with a wide particle size range can be effectively treated, the separation precision is high, and the recovery effect is good.

The efficient extraction and separation integrated system comprises a main shell, a liquid supply chamber and a plurality of partition plates, a cracking chamber is formed between every two adjacent partition plates, a cracking tank and a combination tank are installed in each cracking chamber from top to bottom, the cracking tanks are communicated with the combination tanks, and the combination tanks are communicated with the main shell. A conical discharging bin of an integrated structure is arranged at the bottom of the combining pipe, a sunken part which is sunken upwards is arranged at the bottom of the conical discharging bin, and the magnetic device is arranged outside the sunken part. Cross contamination between samples and environmental pollution can be avoided, efficient capture, thorough washing and sufficient elution of magnetic beads are ensured by combining the unique conical cavity design and the movable magnetic device, so that target products with higher purity and more stable yield are obtained, operation is easy and convenient, reliability is high, a user only needs to add the samples and consumables, and the cost is low. The technical requirements for operators are reduced, and the system structure is simpler and higher in reliability compared with a large robot workstation.

An oil supply structure arranged on a portable bag sealing machine comprises a machine head, a handle is arranged above the machine head, an oil storage cavity and an installation chamber are arranged in the handle, and an oil pump is arranged in the installation chamber. The handle is detachably provided with a handle upper cover used for opening and closing the oil storage cavity to be communicated with the outside and a handle side cover used for opening and closing the installation chamber to be communicated with the outside, the two ends of the oil pump are communicated with the oil storage cavity and the machine head through hoses respectively, and starting and stopping are controlled through the control module. The oil pump handle is compact and reasonable in structural design, integrates multiple functions of an original handle, has the oil storage function through the design of the internal oil storage cavity, facilitates communication between the oil pump and the oil storage cavity by arranging the oil pump in the installation chamber of the handle, guarantees efficient storage and conveying of lubricating oil, and improves the service life of the oil pump. And the installation space is further saved.

The invention provides an electrolytic cell cavity structure and a small electrolytic chamber thereof. The cavity structure of the electrolytic cell is a reaction cavity of the electrolytic cell, the reaction cavity is provided with a liquid inlet groove and a liquid outlet groove, the liquid inlet position is designed to be of a symmetrically-designed groove-shaped structure, and the liquid outlet position is designed to be a straight groove, so that the flowing path of fluid in a small electrolytic chamber can be effectively optimized, the uniformity of a flow field is improved, and the bubble gathering and stagnation phenomena are reduced; therefore, the electrolysis efficiency and the equipment stability are improved. The invention aims to provide a simple, efficient and high-adaptability small electrolysis chamber design, can improve the reaction efficiency and the gas-liquid separation effect in the electrolysis process, and is suitable for various electrolysis processes and equipment.

The utility model relates to a scrap metal treatment device, in particular to a scrap metal packing machine, which comprises a body, the body is provided with a first chamber without a cover at the top and a second chamber with a cover at the top, and the first chamber is connected with the second chamber; the first compression mechanism is used for compressing the scrap metal in the direction from the first side of the first chamber to the second chamber; the second compression mechanism is used for compressing the scrap metal in the direction from the first side of the first chamber and one side of the second chamber to the second chamber; the third compression mechanism is used for compressing the scrap metal in the direction from the top of the second cavity to the second cavity; and the monitoring mechanism is arranged at the top of the first cavity, the monitoring mechanism is arranged in the direction of the first cavity, and the monitoring mechanism is used for monitoring information such as the quality grade of the scrap metal. By means of the structure, scrap metal can be extruded in three steps, higher packing density is achieved, the top is free of a cover due to the design of the double cavities, and monitoring is convenient.

The application relates to the technical field of coating processing, and discloses a gas supply device for supplying special gas to a coating cabin, which mainly comprises a main special gas tank, a standby special gas tank, a pre-charging buffer tank and a gas flow dispersion assembly; the main special gas tank and the standby special gas tank are connected with the pre-charging buffer tank through a pneumatic three-way valve, forming a double-gas-source gas supply system; when the pressure of the main special gas tank is insufficient, the pneumatic three-way valve is automatically switched to the standby special gas tank; in this process, the pre-charging buffer tank preferentially releases the stored high-pressure gas, and the coating cabin is continuously supplied with the gas through a gas supply main pipe, so that the problem of gas pressure fluctuation caused by valve switching in the traditional design is completely avoided. The pre-charging buffer tank adopts a coaxial double-chamber design, including a high-pressure chamber in the outer layer and a pressure stabilizing chamber in the inner layer; the high-pressure chamber is connected with the pneumatic three-way valve; the pressure stabilizing chamber is connected with the coating cabin through the gas supply main pipe; and the pressure stabilizing chamber is provided with an annular metal isolation plate, and the gas pressure is automatically balanced through an automatic adjusting mechanism.

The invention belongs to the technical field of converter steelmaking, and particularly relates to a device and method for reducing steel ladle roughing slag through a double-chamber series-connection restraining cover. Resistance columns are arranged in the circumferential direction of a refractory cover body, and a steel slag chamber, a built-in exhaust pipe and a molten steel chamber are sequentially arranged in the refractory cover body from top to bottom; the steel slag chamber and the molten steel chamber are connected through the built-in exhaust pipe, an opening of the molten steel chamber is arranged downwards, the external exhaust pipe is detachably arranged on the refractory cover body and communicated with the steel slag chamber, meanwhile, a gate valve is arranged on the external exhaust pipe, and a molten steel inlet communicated with the molten steel chamber is formed in the side wall of the refractory cover. The structure effectively inhibits formation of eddy current in a nozzle area in the later pouring period of the steel ladle, the double-chamber design of the molten steel chamber and the steel slag chamber effectively prevents slag entrapment and slag discharge when molten steel enters the nozzle, the phenomenon of slag entrapment and slag discharge in the later pouring period is eliminated, the influence on the quality of the molten steel in the later pouring period is reduced, the steel ladle pouring residue is remarkably reduced, and the service life of the steel ladle is prolonged. And the metal yield and the production efficiency are improved.

The utility model discloses a waste heat recovery device of a setting machine, which relates to the technical field of waste heat recovery, comprises a box body, and is characterized in that three cavities are arranged in the box body and comprise a first cavity, a second cavity and a third cavity, the first cavity is provided with a setting machine waste gas inlet, the second cavity is arranged above the first cavity, and the third cavity is arranged above the second cavity. The third cavity is installed on one side of the first cavity, the heat exchanger is arranged in the third cavity, the heat exchanger is provided with a waste gas inlet, a waste gas outlet, a fresh air inlet and a fresh air outlet, the waste gas inlet is formed in one side of the waste gas inlet of the setting machine of the first cavity, and the waste gas outlet is opposite to the waste gas inlet; the fresh air inlet is formed in one side of the fresh air inlet, and the fresh air outlet is opposite to the fresh air inlet. By adopting the unique cavity design and the air duct arrangement of the heat exchanger, waste gas and fresh air of the setting machine can be fully subjected to heat exchange, and the heat exchange efficiency is improved.

A high-pressure airless spraying machine with a material leakage protection function comprises a machine shell, a speed reducing motor and a plunger pump, the speed reducing motor and the plunger pump are installed on the machine shell, a positioning seat is arranged in the machine shell and arranged in the direction from the speed reducing motor to the plunger pump, a rotatable large gear is arranged on the positioning seat, a connecting rod is arranged above the large gear, and the connecting rod is connected with the positioning seat. The rear end of a plunger rod of the plunger pump is in transmission connection with a shaft end gear of the gear motor through the connecting rod and the large gear, an anti-splashing baffle is further arranged at the position, close to the connecting rod, of the plunger rod, and a first material cavity is formed in the end, close to the plunger pump, of the positioning base. A first through hole is formed in the bottom of the first material cavity and penetrates through the machine shell. And the design of the anti-splashing baffle is adopted, when leaked paint splashes, the anti-splashing baffle plays a blocking role, the design of the material cavity is adopted, the leaked paint can be discharged from the through hole of the material cavity in time, and the gear motor is prevented from being burnt down.