78results about How to "Solve uneven heating" patented technology

The utility model relates to the technical field of evaporator equipment, and discloses a rotary evaporator which comprises a rotary evaporator body, a control terminal is arranged on the front face of the rotary evaporator body, a heating pot is fixedly connected to the upper surface of the rotary evaporator body, and a base is fixedly connected to the upper surface of the rotary evaporator body. The front surface of the base is fixedly connected with a rotating sleeve, one end of the rotating sleeve is fixedly connected with a distillation flask, and the other end of the rotating sleeve is fixedly sleeved with a condenser. The evaporator is rotated, a concentrated sample is taken out from the distillation flask and subjected to subsequent analysis or storage, when the water content in the heating kettle is reduced along with continuous heating of the heating kettle, the water level detector detects that the water level drops, and then the electric telescopic rod is opened through the controller; an electric telescopic rod drives a pushing rod to move up and down through a driving plate to supplement water in the warm water tank into the heating pot, and the problem that heating is uneven due to the fact that water in the heating pot is reduced is solved to a certain extent.

The invention provides multi-stage temperature control thermal battery manufacturing equipment and method, and relates to the technical field of battery processing, the multi-stage temperature control thermal battery manufacturing equipment comprises a workpiece thermal battery and a workpiece conveying belt, the workpiece thermal battery is placed on the surface of the workpiece conveying belt, production line detection modules are arranged on the two sides of the path of the workpiece conveying belt respectively, and a middle workpiece box is arranged on the side face of one end of the workpiece conveying belt; the workpiece conveying belt is sequentially provided with a combined machining module and a finished product detection module at the extending position of the vertical side face, at the same end of the middle workpiece box, of the workpiece conveying belt, a multi-stage temperature control system is adopted, a temperature sensor, an infrared sensor and a gas sensor are combined, and the temperature of a heating unit is monitored and adjusted in real time. Through dynamic adjustment of the microcomputer host, the output power of the heater can be optimized in real time, and it is ensured that the temperatures of materials in different stages are uniform and accurate; the multi-stage temperature control design greatly improves the precision of temperature control and solves the problem of uneven heating, thereby improving the quality and consistency of products.

The invention relates to the field of fused magnesite, and discloses a fused magnesite smelting process multistage demand control method, which comprises the following steps: S1, raw material treatment and mixing, S2, electric furnace charging and heating treatment, and starting of an electric furnace to gradually heat the raw materials to a temperature above a melting point, and S3, fused magnesite processing parameter control. The method comprises the following steps: S1, monitoring real-time pressure and chemical components in an electric furnace, S4, performing electric power multi-stage demand prediction control, and predicting a subsequent power utilization state, and S5, performing self-updating of a prediction control algorithm, and establishing a prediction algorithm self-optimization system. According to the electric power multi-stage prediction control, the future electric power demand can be accurately predicted according to historical data and real-time environment parameters, so that the electric power supply is adjusted in advance, the influence of electric power fluctuation on the fused magnesia smelting process is avoided, the stability and efficiency of the smelting process are ensured, and the production cost is reduced. And judging whether the electric furnace can be opened according to the operation state of the electric furnace.

The utility model discloses a novel full-volume drying roller for producing fiber precursors. The novel full-volume drying roller comprises a drying roller body, a water return pipe, a steam pipe directly communicated with the interior of the drying roller body, a collecting tank and a hot roller front inner end cover, a centering block and a guide stop block are arranged on the water return pipe, the end of the water return pipe is installed on a connecting disc, the connecting disc is fixedly connected with a square flange, the water return pipe is communicated with a water return channel of the square flange through the connecting disc, and the other end of the water return channel is connected with a water return connector which is connected with a collecting tank. An adjusting threaded pipe is installed in the direction, opposite to the water return connector and the collecting groove, of the square flange, an adjusting nut, a spring seat ring and a compression spring are sequentially arranged on the adjusting threaded pipe, a telescopic supporting rod is arranged in the adjusting threaded pipe, and the end of the telescopic supporting rod makes contact with the inner side wall of the drying roller body. According to the drying roller, the mounting form of the collecting tank is improved, so that the roller body of the drying roller can be designed into a full-volume type, and the drying roller with the structure has the advantages of being uniform in heating and smooth in condensate water collection.

The invention discloses an ultra-high-temperature monofilament mechanical loading platform, a vacuum test device and a test method, and relates to the technical field of detection devices, in particular to an ultra-high-temperature monofilament mechanical loading platform comprising a tension loading module comprising two groups of moving cross beams moving oppositely or oppositely, a driving module for driving the moving cross beams to move, and a monofilament clamp, the movable cross beam is connected with the monofilament clamp through a sensor assembly; according to the ultrahigh-temperature monofilament mechanical loading platform, the vacuum test device and the test method, heat radiation generated by heating of the heating body is adopted to heat the workpiece, the problem of limitation on the material quality of the workpiece and the problem of uneven heating in the workpiece test process are solved, the heat preservation module is additionally arranged, the test temperature can be continuously increased, and the test efficiency is improved. According to the clamping tool, the ultrahigh-temperature environment of 2000 DEG C in a narrow space can be achieved, meanwhile, the groove body horizontally arranged in the heating body is adopted for bearing a workpiece, the influence of the clamping tool on workpiece drawing force measurement is reduced, the testing precision is guaranteed, and then the effectiveness of a testing result is promoted to be improved.

The present invention relates to a microwave vacuum drying device, which includes a shell with a receiving cavity formed inside; a material-carrying rotating device located in the receiving cavity, the material-carrying rotating device includes a rotating shaft and at least one layer of a carrier plate configured around the rotating shaft for carrying the dried material, the rotating shaft can drive the carrier plate to rotate around the axis of the rotating shaft; a plurality of microwave generators located on the outer surface of the shell, the microwave generator at least includes a waveguide penetrating the shell and extending into the receiving cavity along the radial direction of the rotating shaft, the waveguide is located at a corresponding position above the material on the carrier plate; the microwave generator is configured to microwave the material on the carrier plate; a vacuum exhaust device, the vacuum exhaust device is configured to exhaust the ambient gas in the receiving cavity. The device can effectively reduce the floor space of the device, improve the space utilization rate and production capacity of the device, and at the same time, the microwave generator is located on the outer surface of the shell, which is convenient for the maintenance and replacement of the device.

The utility model discloses a quick replacement rotary heat treatment bearing device, including the bottom plate with gyro wheel, with the bottom plate detachable insertion board, be used for bearing the reel and bottom through transmission shaft and mobile plate rotation connection's rotation board and install in the bottom plate bottom's drive motor, and drive motor's drive shaft top end drive pin detachable container is located in the drive groove of transmission shaft bottom end, to drive rotation board rotation. From quick dismounting replacement, mobile plate and bottom plate adopt detachable insertion structure, and drive pin and drive groove detachable cooperation, when replacing the reel or maintaining, can separate without complex operation, and the maintenance efficiency is greatly promoted, solves the problem that traditional device dismounts is complicated. In the aspect of uniform heating, drive motor passes through drive pin and drive groove cooperation steady drive rotation board, makes the reel heat treatment when continuous steady rotation, and wire uniform heating, guarantees heat treatment quality. The quick replacement rotary heat treatment bearing device has the quick dismounting replacement and the uniform heating.

The present invention relates to the technical field of steel pipe production, and specifically to a heat treatment device for annealing steel pipes, comprising a main body, a heating mechanism and a feeding and discharging mechanism, wherein the heating mechanism is arranged on the top of the main body, and the feeding and discharging mechanism is arranged on the top of the heating mechanism, wherein the heating mechanism comprises a heating chamber, wherein the top of the heating chamber is provided with an opening, wherein a rotating frame is rotatably connected inside the heating mechanism, wherein the circumferential outer surface of the rotating frame is provided with an installation groove, wherein a clamping mechanism is arranged inside the installation groove for clamping and rotating the steel pipe to achieve uniform heating, wherein the feeding and discharging mechanism comprises a limiting shell fixedly installed at the top opening of the heating chamber, wherein cavities are arranged inside the two ends of the limiting shell. The present invention realizes continuous self-rotation heating of the steel pipe by combining the rotating frame with the clamping mechanism, wherein the automatic feeding and discharging of the feeding and discharging mechanism shortens the production cycle, wherein the continuous rotation of the rotating frame supports the simultaneous annealing of multiple pipes, thereby meeting large-scale production and reducing labor intensity.

The mold core casting mold structure comprises an outer mold and a sand core which are horizontally arranged, and the sand core is horizontally arranged in an inner cavity of the outer mold; the sand core comprises a molding sand structure and a core bar structure, the core bar structure is embedded in the molding sand structure, and the core bar structure further comprises a core bar body and a plurality of reinforcing ribs which are fixedly connected to the outer surface of the core bar body and are arranged in the axial direction of the core bar body; a cavity with a transverse casting mold is formed between the sand core and the inner cavity; according to the mold core casting mold structure, at least two pouring channels are formed in the two sides of the upper portion of an outer mold, and the pouring channels are communicated with end openings in the two sides of a mold cavity respectively. According to the mold core casting mold structure provided by the invention, molten iron can be poured into the ports on the two sides of the mold cavity at the same time, and the unique design of the core bar structure is matched, so that the pouring speed of the high-temperature molten iron is increased, and the temperature uniformity of the molten iron in the mold cavity can be ensured; the problem that a sand core with a large height-diameter ratio and an ultra-long length is prone to deformation due to uneven heating in a high-temperature molten iron environment is effectively solved.

The utility model discloses the reaction kettle of environmental protection type prevention and treatment auxiliary agent's deployment device relates to reaction kettle technical field. The utility model discloses the reaction kettle of environmental protection type prevention and treatment auxiliary agent's deployment device includes support frame, and the upper portion of support frame is provided with the reaction mechanism for mixing raw materials, and the reaction mechanism includes: the storage component is provided in the upper portion of support frame and provides the container for the reaction in production process, the stirring component includes the top cap of setting in the top of storage component, the upper portion of top cap is inserted and is installed with the connecting bolt, the upper portion of top cap is inserted and is installed with the connecting pipe, the upper portion of top cap is provided with pressure -relief valve and feed valve, when motor drives driving shaft rotation, and the arc plate on driving shaft will actively push the material of lower center temperature of material cylinder to the edge, near the high temperature area of mica heating ring, and the auger will turn over the material below material cylinder upward, make all areas's raw materials in material cylinder can cyclic contact to the evenly heated inner wall of material cylinder.

The utility model discloses a surface heat treatment device for corrugated roller production, including coaxial arrangement's inductive heating subassembly and cooling subassembly, the heating ring main part of inductive heating subassembly is by two coaxial, same diameter and inner ring surface is located the same circumference open ring annular body interval combination and is formed, and two annular body open ring place electricity is connected and is connected electrode connecting rod respectively, the hollow upper ring body of cooling subassembly sets up the inclined inner ring surface, and the inner ring surface array has first water spray hole and hole axis is perpendicular to the inner ring surface. The structural design of heating ring main part ensures its with corrugated roller surface distance everywhere is consistent, improves heating homogeneity, and the first water spray hole of upper ring body is inclined setting, has avoided the short circuit, magnetic field disorder problem that horizontal water spray is easy to splash to heating ring to initiate, has overcome the defect that vertical water spray covers insufficiently. Both coaxial synergistic effect, effectively promote the homogeneity of corrugated roller heating and cooling, guarantee its hardness is consistent, reduces equipment failure and maintenance frequency, improves production efficiency and product pass rate.

This invention belongs to the field of anchor chain welding technology, and particularly relates to an anchor chain welding mechanism with automatic weld detection function, including an anchor chain processing table, an anchor chain conveying table, a radial alignment component, an axial alignment component, a weld detection component, and an electrode welding module. The anchor chain conveying table is fixedly mounted in the middle of the anchor chain processing table, used to directionally convey each anchor chain link in the anchor chain to the center position of the processing table. This invention accurately detects the deviation between the actual weld position of the anchor chain link and the center of the processing table, and drives the sliding component to move the electrode welding columns horizontally according to the deviation, so that the left and right sets of electrode columns maintain a symmetrical spacing relative to the weld, thereby solving the problem of uneven heating caused by non-centered welds, improving welding quality, and forcibly correcting and clamping the ends of the anchor chain links to prevent end displacement due to heat, overcoming the defects of traditional electrode clamping points being far away and ends being prone to misalignment, and improving weld fit accuracy.

The utility model relates to the field of forage grass processing, and discloses a steam explosion device for processing rice straws to produce roughage, which comprises a vertically arranged explosion tank, a feed port arranged above the explosion tank, a feed valve arranged on the feed port, a discharge port arranged below the explosion tank, and a discharge valve arranged on the discharge port. A plurality of air inlets are formed in the bottom of the blasting tank; a plurality of spiral material guide plates which are uniformly distributed on the circumference are fixed on the inner wall of the blasting tank; the spiral material guide plates extend to the lower part of the blasting tank from the upper part of the blasting tank; and each air inlet is positioned between two corresponding adjacent spiral material guide plates. The problems that in a traditional device, materials are heated unevenly, and the fiber degradation effect is poor are effectively solved, full contact of steam and straw is achieved, the straw is heated evenly, and the straw treatment efficiency and the coarse fodder quality are improved.

This utility model belongs to the field of chemical heating technology and discloses a chemical analysis heating device, including: a driving component, including a rotating plate, with multiple sets of glass containers evenly arranged circumferentially on the front side of the rotating plate, and a disassembly and assembly component on the rear side of the glass containers to realize convenient disassembly and assembly of the glass containers. A gear ring is rotatably installed on the back of the rotating plate, and multiple sets of transmission gears are circumferentially meshed on the outer side of the gear ring, with each set of transmission gears corresponding to a set of glass containers. Compared with the prior art, this utility model has the following beneficial effects: by integrating the driving, lifting and heating components, multiple sets of materials to be analyzed are first loaded into glass containers, and then circumferentially mounted on the front side of the rotating plate through the disassembly and assembly component. The lifting component drives the rotating plate to descend, so that the target glass container enters the arc-shaped groove, and the heating plate starts heating; during heating, the gear ring and transmission gears drive each other, and the glass container rotates through the linkage shaft, realizing uniform heating of the glass container and rolling of the material inside the tube to prevent accumulation, thereby improving the reliability of analysis.

This utility model discloses a highly efficient extraction and purification device for natural fragrances, relating to the field of fragrance extraction. The device includes a distillation kettle, a separating device, and a driving device. The distillation kettle has an inner cavity with a partition dividing it into a material chamber and a heating chamber, with the heating chamber located below the material chamber. The separating device includes multiple separating plates stacked on top of the partition in a stepped arrangement. The driving device drives all the separating plates upwards, with the upper plates moving a greater distance than the lower plates, thus spacing the plates apart and lifting the material to different heights. This utility model aims to solve the problem of uneven heating caused by material accumulation in traditional devices.

The utility model provides a pressing plate structure and coating equipment, and belongs to the technical field of semiconductor production equipment, the pressing plate structure comprises a first pressing plate and a second pressing plate, and the second pressing plate can be separated from the first pressing plate when a substrate abuts against the first pressing plate. A traditional integral pressing plate is improved into the first pressing plate and the second pressing plate which can be separated, when the substrate table ascends, the second pressing plate is used for pressing the peripheral side of the substrate, due to the fact that the size of the pressing plate actually making contact with the substrate is reduced, actually-accumulated heat is effectively reduced, and when film coating is completed, the pressing plate is used for pressing the peripheral side of the substrate. And the second pressing plate falls back to the first pressing plate again, and the heat is transferred out through the first pressing plate. Therefore, the pressing plate structure disclosed by the utility model can effectively solve the problem that the substrate is heated unevenly due to heat accumulation of the pressing plate, and can effectively improve the coating quality.

The invention relates to a temperature control method for zirconia ceramic block sintering based on a continuous kiln. A kiln of the continuous kiln is sequentially divided into a first preheating area, a first heat preservation area, a second preheating area, a third preheating area, a sintering area and a cooling area from the front end to the rear end. All the areas are divided according to different proportions occupying the length of the continuous kiln, and all the areas correspond to different temperatures and temperature change rates; and meanwhile, the continuous kiln runs at a corresponding propelling speed according to the length of the kiln. According to the continuous kiln, the interior of the continuous kiln is divided into a plurality of different preheating areas and the heat preservation areas are arranged among the preheating areas, so that the zirconia ceramic blocks are heated more uniformly, the temperature is increased stably, and the quality of finished products is effectively improved.

This utility model belongs to the field of heat treatment technology for parts, and particularly relates to a heat treatment device for ring-shaped parts. The device includes a heat treatment furnace with a furnace door on the front, support legs and a geared motor on the bottom, and a fixed plate on the top surface inside the furnace. A central shaft rotates between the fixed plate and the furnace bottom, driven by the geared motor. A planetary carrier and fan blades are fixed on the central shaft. A first planetary shaft and a second planetary shaft rotate on the planetary carrier. A sun gear is mounted on the fixed plate. A first planetary gear meshes with the sun gear at the upper end of the first planetary shaft. The two planetary shafts are driven by meshing second and third planetary gears. A shelf is located at the lower end of the second planetary shaft, and a stepped rod is provided on the shelf for mounting ring-shaped parts. This utility model uses a planetary gear system to drive the ring-shaped parts to simultaneously revolve and rotate, and the fan blades disturb the airflow inside the furnace, ensuring uniform heating of the ring-shaped parts and effectively improving the heating effect.

The invention belongs to the technical field of peanut butter preparation, and particularly relates to a preparation system and method for preparing peanut butter through the segmented stir-frying technology.The preparation system comprises a base, a collecting box is installed on the side wall of the base in a sliding mode, a feeding and discharging assembly is arranged outside the base, and a drying assembly is arranged in the feeding and discharging assembly; the drying assembly comprises a processing box, a plurality of containing grooves, a heating box, a partition plate, a discharging groove, a heating wire, a semiconductor chilling plate and diffusion fins. A driving assembly is arranged at the top of the base and comprises a mounting frame, a servo motor, a driving gear and a driven gear; the interior of the heating box is divided into a plurality of parts, the temperatures in all the parts are different, the temperatures are controlled in stages, it is ensured that the interiors and exteriors of peanuts are heated uniformly, local overheating or insufficient drying is avoided, and the effect of improving the quality of the dried peanuts is achieved; the problem that peanuts are heated unevenly when dried in the prior art is solved.

The invention discloses a multi-path oven which is composed of an oven body, a feeding mechanism used for enabling a conveying belt and a silk-screen product to enter the oven body together, a multi-path mechanism used for conducting S-shaped repeated winding connection on the conveying belt and the silk-screen product entering the oven body, and a drying mechanism used for drying the silk-screen product conveyed by the conveying belt. The multi-path mechanism comprises a plurality of full rollers and a plurality of semi-hanging rollers, and the conveying belt and one end of the silk-screen product sequentially bypass the full rollers and the semi-hanging rollers and then flow out of a discharging port in the bottom of one end of the box body. According to the silk-screen drying box, the conveying distance of silk-screen products in the box body is effectively increased, the drying time is prolonged, the drying effect is remarkably improved, the product processing requirement with the high requirement for the drying duration is met, the silk-screen products needing to be subjected to multiple times of silk-screen drying can be circularly dried in cooperation with a silk-screen machine, and large-scale and high-quality production of the products is met.

A steamer, oven and microwave oven all-in-one comprises a box and a cooking cavity arranged in the box, a steam generating device comprises a heating plate installed at the bottom of the cooking cavity and a water system for injecting water into the heating plate, a microwave outlet is provided on the left wall and / or right wall of the cooking cavity for microwaves generated by the microwave generating device to enter the cooking cavity, and a grill generating device comprises a hot air blower assembly installed at the rear of the cooking cavity and used for hot air exchange in the cooking cavity. The advantages of the present invention are that the steam of the steamer, oven and microwave oven all-in-one is generated by the heating plate at the bottom of the cavity, the grilling function is composed of a heating tube at the top of the cavity and a hot air blower at the back, and the microwave is emitted from the side. The three functions are respectively located at different positions of the cavity, are independent of each other, and complement each other. The spatial layout is relatively reasonable, and in particular, two left and right microwave outlets are designed, and microwaves can be emitted alternately or simultaneously at the left and right microwave outlets, solving the problem of uneven heating of side-emitted microwaves.

The utility model relates to the technical field of medicine penetration treatment, and discloses a medicine penetration device for treating lumbar disc herniation, which comprises a main body assembly, the main body assembly comprises a bridle, a bandage, a box body and a sealing cover, the bridle is provided with a treatment window, the bandage is fixedly connected to the outer side of the bridle, the box body is fixedly connected to the outer side of the bridle, and the sealing cover is hinged to the top of the box body. The medicine bag heating device has the advantages that a medicine bag is heated in a rotating mode so that heating can be even, an operator drives a threaded rod to rotate through a driving mechanism, a clamping plate is driven to clamp and fix the medicine bag, then the operator drives the medicine bag to rotate slowly through a motor, the heating block heats all the aspects of the medicine bag, and therefore the medicine bag can be heated more evenly. Meanwhile, the medicine bag rotates, gaps between the medicinal materials in the medicine bag can be changed, the medicine bag is further heated, the heating uniformity of the medicine bag is improved, and the problem that the top and the bottom of the medicine bag are heated unevenly due to the fact that the medicine bag is heated upwards from the bottom of the medicine bag is solved.

This application discloses a method and apparatus for shaping multi-strand wire springs, relating to the field of spring processing technology. The multi-strand wire spring shaping apparatus includes a support frame and multiple furnace bodies, each furnace body providing a heating zone, and each heating zone being equipped with a temperature sensor for acquiring temperature detection data. The support frame is movably installed between the multiple heating zones. The multi-strand wire spring shaping method includes the following steps: in response to a spring shaping processing command, acquiring historical heating data of multiple heating zones; acquiring temperature detection data of multiple heating zones; determining the actual heating power and actual heating time period of each heating zone based on the historical heating data and temperature detection data; and controlling the operation of each heating zone according to the actual heating time period and actual heating power. This method addresses the technical problem of achieving synchronous and uniform heating of multi-strand wire springs using multiple furnace bodies.

The invention relates to the technical field of amomum tsao-ko drying, in particular to an amomum tsao-ko drying device which comprises a drying room, and goods shelf guide rails and hydraulic adjusting devices arranged corresponding to the goods shelf guide rails are arranged in the drying room; the storage rack is placed on the goods shelf guide rail and limited through a hydraulic adjusting device, the hydraulic adjusting device is provided with a first telescopic station and a second telescopic station, and the storage rack comprises a stable rack and movable avoiding racks which are elastically arranged on the stable rack and can be close to and away from each other. According to the scheme, in the drying process, the trays can be switched from the separated state to the stacked state, then the transverse trays form the spliced state, the side plates shield the height space, and the airflow channel is formed, in this way, in the drying process, hot air can be utilized, moisture can be intensively exhausted, meanwhile, the preheating time is shortened, and the drying efficiency is improved. And the problem that the amomum tsao-ko is heated unevenly in an open mode is solved, the drying efficiency is improved, and the drying cost is reduced.

The utility model relates to the technical field of table vinegar production equipment, in particular to sterilization equipment for table vinegar production, which comprises a heating part, the heating part is sequentially connected with a heat preservation part and a cooling part, the heating part comprises a heating box body and a heating pipeline coiled in the heating box body, first heating mechanisms are arranged on two side walls of the heating box body, and second heating mechanisms are arranged on two side walls of the heating box body. The heating pipeline is located between the heating mechanisms, and the heat preservation part comprises a heat preservation box body and a heat preservation pipeline coiled in the heat preservation box body; the heat preservation box body is filled with heat preservation liquid used for heat preservation, and a second heating mechanism used for heating the heat preservation liquid and a first temperature sensor used for monitoring the temperature of the heat preservation liquid are further arranged in the heat preservation box body. Vinegar enters the heating part through the heating pipeline, and is heated by the heating mechanisms on the two sides in the continuous flowing process of the vinegar so as to be disinfected, so that the problem of non-uniform heating caused by heating of the vinegar in the barrel can be effectively solved, and the condition that the quality of the vinegar is reduced is avoided.

The utility model relates to the technical field of nanometer magnesium oxide reaction, in particular to a reaction device for preparing nanometer magnesium oxide from forsterite, which comprises a first reactor, a feeding pipe is mounted at one end of the first reactor, a second reactor is mounted at the other end of the first reactor, and a third reactor is mounted at one end of the second reactor; heating pipelines are mounted on the surfaces of the first reactor, the second reactor and the third reactor, heaters are mounted at one ends of the heating pipelines, supporting plates are mounted in inner cavities of the heating pipelines, and fans are mounted on the surfaces of the supporting plates; the inner cavities of the first reactor, the second reactor and the third reactor are respectively provided with a blanking mechanism, the top end of each blanking mechanism is provided with a plurality of catalyst carriers, and the top end of each catalyst carrier is provided with a plurality of round holes. The synthesis of the nano magnesium oxide can be carried out under the optimal temperature condition, and the yield is effectively improved.

The invention relates to the technical field of semiconductor equipment, and discloses a warped wafer reflow heating device, comprising a heating upper cover, a spring pressure block structure, and a lower cavity structure. A first pressure ring and a second pressure ring are arranged at the bottom of the heating upper cover, the first pressure ring is located on the inner side of the second pressure ring, and the bottom of the first pressure ring and the second pressure ring are both provided with spring pressure block structures, the spring pressure block structure is used to squeeze the warped wafer, the spring pressure block structure comprises an elastic clamping component, an overload buffer component, a loading component and a guide pin, the guide pins are respectively located in the first pressure ring and the second pressure ring, and the elastic clamping component is located at the bottom of the guide pin inner cavity; when encountering a wafer with a large degree of warping, the elastic clamping component is compressed to a certain extent, in order to prevent the continuous downward pressure of the heating upper cover, resulting in excessive elastic potential energy condensed by the elastic clamping component, thereby causing damage to the warped wafer, to avoid that when the wafer is severely deformed, the wafer will be crushed during the sealing process of the upper and lower covers, which greatly affects the yield.

The present application relates to the field of vacuum sterilization control technology for pet food, and specifically to a vacuum sterilization processing method, system and equipment for freeze-dried pet food, the method comprising: collecting historical temperature and pressure data at all collection moments within a preset time period before the current sterilization moment of the pre-packaged freeze-dried semi-finished product; according to the distribution of all historical temperature data at each historical abnormal moment and its neighborhood and the discrete degree of all historical pressure data, combined with the respective change trends and average distribution of all historical temperature data and all pressure data at each historical abnormal moment and its neighborhood, determine the historical control error at the current sterilization moment of the pre-packaged freeze-dried semi-finished product to control the sterilization temperature. Based on the historical control error, the present application improves the proportional gain of the PID controller and improves the accuracy of temperature control during vacuum sterilization.

A high-temperature refractory material roasting device comprises a roasting box, the inner bottom wall of the roasting box is rotationally connected with a rotating seat, the inner side wall of the roasting box is provided with a heating assembly, the top end of the roasting box is hinged to a top cover, the top end of the rotating seat is detachably in transmission connection with a containing cylinder of an equilateral cuboid structure, and the top end of the containing cylinder is provided with a first traction hook; a plurality of layers of placing structures distributed in a circumferential array are fixedly installed on the side wall of the placing barrel, each placing structure comprises three placing plates arranged side by side, a plurality of evenly-distributed check blocks are arranged in each placing plate, a bearing plate is fixedly connected to the bottom end of the placing barrel, and a discharging mechanism is connected to the outer portion of the placing barrel in a sleeving mode and makes contact with the bearing plate. The discharging mechanism is reasonable in structural design, uniform roasting of refractory materials can be achieved, the roasting quality and the production efficiency are improved, during discharging, the anti-falling assembly in the discharging mechanism can prevent the materials from falling off, and the material taking safety is guaranteed.

The utility model discloses a distillation and purification device for triethyl orthoformate. Comprising a bottom plate, a bearing block fixedly connected to the upper end of the bottom plate, a distillation still fixedly connected to the upper end of the bearing block, a groove body formed in the peripheral wall of the distillation still in a penetrating mode, a sliding door hinged to the inner wall of the groove body, a feeding assembly arranged on the peripheral wall of the distillation still, a steam output assembly arranged at the upper end of the distillation still and a discharging assembly arranged at the lower end of the distillation still. The first bearing ring is fixedly connected to the middle part of the inner wall of the distillation kettle; the movable ring is placed at the upper end of the first bearing ring; the fixed cylinder is arranged on the inner wall of the movable ring in a sliding manner; the separation cylinder is fixedly connected to the lower end of the movable ring; the guide cylinder is fixedly connected to the upper end of the fixed cylinder; the air guide assembly is arranged at the upper part of the inner wall of the distillation kettle. The utility model has the advantages that the internal airflow can be actively guided and adjusted, the mass and heat transfer efficiency is high, and the cleaning and maintenance are convenient.