11results about How to "Lower oxygen levels" patented technology

This utility model relates to the field of mung bean cake packaging technology, and more particularly to a mung bean cake packaging with a preservation function. The technical solution includes: a packaging box, the packaging box including a box bottom, side panels rotatably disposed on both the left and right sides of the box bottom, a box lid rotatably disposed on the side of the two side panels that are far apart from each other, a box body disposed on the top surface of the box bottom, a buffer layer disposed inside the box body, and a preservation box disposed inside the buffer layer, the preservation box including a second box lid and a second box body. This utility model, by incorporating a humidity regulating bag, can absorb excess moisture inside the packaging, controlling the humidity within a suitable range, preventing the mung bean cake from becoming moldy and spoiled due to dampness, and can also reduce the oxygen content inside the packaging, further inhibiting the growth of microorganisms. The packaging box and buffer layer provide good compressive strength, effectively preventing external pressure from compressing and damaging the mung bean cake inside.

This invention belongs to the field of metal purification technology and discloses a method for preparing high-purity indium with low silicon content, comprising the following steps: Step 1: Place the indium raw material into a hydrogenation furnace and evacuate to a vacuum degree of 5*10 ‑3 Pa-8*10 ‑3 Step 2: Purge with inert gas to atmospheric pressure and maintain the pressure for 30 minutes; Step 3: Replace the inert gas with hydrogen gas, turn on the heater to raise the temperature to 400-600℃, and maintain the temperature for 1-2 hours to obtain the low-silicon content high-purity indium. This invention discloses a method for preparing low-silicon content high-purity indium, which can reduce the silicon content in high-purity indium to <10 ppbw, effectively improving the performance of high-purity indium.

The utility model relates to a kind of food processors, including: cabinet, its inside is equipped with the cooking chamber for cooking food, the upper portion of the cooking chamber is equipped with exhaust hole;Negative pressure pump, is located in the cooking chamber outside, and with the exhaust hole communication, for the gas in the cooking chamber is extracted to make cooking chamber inside to be negative pressure state;For preparing food fresh-keeping gas gas generating device;Inside with the air cavity for storing food fresh-keeping gas's gas storage device, air cavity gas inlet with the output end of the gas generating device is communicated, air cavity gas outlet is communicated to the cooking chamber by gas pipeline, and gas pipeline is equipped with for controlling gas flow's flow control valve, when flow control valve opens, the gas storage device is arranged, and food fresh-keeping gas in it can be inhaled into cooking chamber under the action of cooking chamber inside negative pressure.The utility model can reduce the risk of food material being oxidized.

This utility model provides a self-regenerative oxygen-enriched burner, belonging to the technical field of combustion equipment. The self-regenerative oxygen-enriched burner includes a combustion chamber; side plates, which are bolted to the left and right ends of the combustion chamber; L-shaped tubes, which are fixedly connected to the left and right ends of the side plates; a heat storage body, which is fixedly connected inside the two L-shaped tubes; and a support, which is fixedly connected to the lower end of the combustion chamber. A reversing valve is connected to the support, and a connecting pipe connects the reversing valve to the L-shaped tubes. In this design, the heat storage body receives and stores heat transferred from high-temperature flue gas during combustion, and then uses this heat to subsequently heat the cold air or gas entering the combustion chamber, achieving efficient heat recovery and reuse, reducing energy waste, and improving combustion energy utilization efficiency.

This utility model relates to the field of packaging equipment technology and discloses a packaging equipment for phospholipid production. It solves the problems of low automation, low packaging efficiency, and high risk of contamination associated with existing phospholipid production packaging equipment, as well as the difficulty of adapting to the high viscosity and easy oxidation characteristics of phospholipids using exposed packaging. The equipment includes a workbench with support frames fixedly installed at both ends of its bottom. A conveyor belt is fixedly installed on the top of the workbench, and a packaging box is fixedly installed in the middle of the conveyor belt. An observation window is fixedly installed on the upper front side of the packaging box, and a PLC logic controller is fixedly installed on the lower front side of the packaging box. A servo motor is fixedly installed on one side of the top of the packaging box via a support plate, and a transmission component is provided at the output end of the servo motor. This phospholipid production packaging equipment has a high degree of automation, fast packaging speed, and uses sealed vacuum packaging to avoid contamination and improve product quality.

This utility model relates to a fire-resistant storage device for oily waste bleaching clay, comprising a storage tank connected to the discharge pipe of at least one filter, a spraying assembly for spraying atomized water onto the oily waste bleaching clay inside the storage tank, an inflation assembly for filling the storage tank with inert gas, a detection assembly for detecting the storage environment inside the storage tank, and a controller for controlling the spraying of atomized water and the filling of inert gas. This utility model uses the detection assembly to detect the temperature, smoke, and oxygen content inside the storage tank containing the oily waste bleaching clay. Based on the detection results, nitrogen is injected into the storage tank using the inflation assembly to reduce the oxygen content. The spraying assembly sprays atomized water onto the oily waste bleaching clay inside the storage tank. These two methods work together to reduce water consumption and also reduce the risk of spontaneous combustion of the oily waste bleaching clay, thus improving storage safety.

This invention discloses a cooking appliance and its cooking control method, as well as a computer-readable storage medium. The cooking appliance includes a pot body and a heating element. The pot body forms a cooking cavity, and the heating element heats the cooking cavity. The cooking control method includes the following steps: based on the working stage of the cooking appliance, entering a deactivation stage; controlling the treatment of the cooking cavity, the treatment including at least one of heating, vacuuming, and oxygen removal; controlling the working stage of the cooking appliance to enter the cooking stage. The technical solution of this invention aims to enable the cooking appliance to undergo deactivation treatment before steaming or boiling, preventing the food to be cooked from discoloring and turning yellow after high-temperature cooking, thereby improving the cooking effect and reliability of the cooking appliance.

The application provides a nanocellulose-based edible preservative liquid, a preparation method and a use method thereof. The nanocellulose-based edible preservative liquid comprises a nanocellulose solution, beeswax and glycerol. The preparation method comprises the following steps: mixing the nanocellulose solution, the beeswax and the glycerol according to a proportion and heating to melt the beeswax to obtain a mixed liquid; then, stirring and emulsifying the mixed liquid to obtain a nanocellulose emulsion; finally, performing vacuum defoaming treatment on the nanocellulose emulsion to obtain the nanocellulose-based edible preservative liquid. The application develops an edible and easy-to-wash preservative liquid based on nanocellulose, adopts a dipping coating mode to perform coating film treatment on fruits and vegetables, forms a micro-nano level preservative coating layer on the surface of the fruits and vegetables, can effectively reduce the loss of water and nutrients on the surface and inside of the fruits and vegetables, reduces the gas permeability of the preservative coating layer, and significantly enhances the mechanical strength of the preservative coating layer.

This application discloses a multi-stage purification and reuse device for nitrogen-sealed VOCs, relating to the field of VOCs recovery and treatment technology. The VOCs recovery and treatment device includes multiple condensers, each comprising at least a first-stage condenser and a final-stage condenser. The tube-side inlet of the first-stage condenser is connected to the VOCs inlet, and the shell-side outlet of the first-stage condenser is connected to the purified gas outlet. The shell-side inlet of the final-stage condenser is connected to the liquid nitrogen inlet. The heat exchange tubes of the multiple condensers are sequentially connected via tube-side connecting pipelines, and the shells of the multiple condensers are also sequentially connected via shell-side connecting pipelines. This multi-stage purification and reuse device for nitrogen-sealed VOCs solves the problems of low purification efficiency and inability to reuse nitrogen in the purified gas when traditional VOCs recovery and treatment equipment is used for low-oxygen VOCs.

This utility model discloses an extrusion device for magnesium alloy welding wire, relating to the field of magnesium alloy welding wire production technology. The extrusion device includes a fixed frame, inside which an extrusion cylinder is fixedly installed. A feeding mechanism for adding raw materials is installed on the front side of the extrusion cylinder, and a cooling mechanism for reducing the temperature of the welding wire and preventing spontaneous combustion is installed at the bottom of the extrusion cylinder. When the inner end of the movable block is flush with the inner wall of the extrusion cylinder, material cannot enter the inner cavity of the extrusion cylinder through the material trough. During the feeding operation, a transmission piston drives the movable block to move inward into the extrusion cylinder, so that the bottom end of the material trough is inside the extrusion cylinder and the top end is outside the extrusion cylinder. At this time, material inside the hopper can enter the extrusion cylinder through the material trough. This method can seal the part of the extrusion cylinder below the lower pressure block after material addition, thereby blocking foreign objects and reducing heat loss.

The utility model discloses a kind of low-power-consumption display screen wafer epitaxial monitoring protection devices, including positioning plate, epitaxial protection box is fixed on the positioning plate upside, and epitaxial protection box top is set as open, epitaxial protection box top is provided with the protection cover that open is shielded and sealed, fixed with the partition frame in epitaxial protection box, the temperature control box that is in contact with partition frame side surface is arranged in the bottom of epitaxial protection box inner chamber, and partition frame separates epitaxial protection box inner chamber into several epitaxial chambers.This low-power-consumption display screen wafer epitaxial monitoring protection device is used for the monitoring of temperature when wafer epitaxial, and temperature can be regulated according to demand, avoid temperature excessively high and lead to grain growth too fast to influence crystal quality, simultaneously prevent temperature excessively low and lead to crystal growth efficiency too low, in addition, crystal epitaxial is carried out under vacuum state, avoid dust and impurity in environment to influence crystal purity and uniformity.