42results about How to "Good sealing environment" patented technology

The invention discloses a seal structure of a motive shaft of a high temperature furnace. The seal structure comprises a furnace body, and a notch used for accommodating the motive shaft is formed inthe furnace body; a mounting block matched with the notch is arranged on the furnace body; the mounting block and the edge of the notch are hermetically connected; a through hole groove used for allowing the motive shaft to slide is formed in the mounting block; the motive shaft is inserted in the through hole groove; the end, arranged in the furnace body, of the motive shaft is connected with a seal plate; the seal plate and the mounting block are hermetically connected through a first sealing element; and the motive shaft and the seal plate are hermetically connected through a second sealingelement. According to the seal structure, the motive shaft is always sealed with the furnace body during the moving process, a relatively good sealed environment is provided for the high temperaturefurnace, and utilization requirements are well met.

The invention discloses a pull-type picking, kneading, bundling and bagging machine for straw feed. The pull-type picking, kneading, bundling and bagging machine comprises an integral rack, a picking, kneading and transporting device, a straw smashing filling bin, a straw compacting, bundling and bagging device and a powder transmission system. The innovative technologies such as the picking kneading and transporting device being front-arranged to suspend and hydraulically lift, deep tearing, kneading and smashing processing conducted on coarse hard section head and dense surface of corn straw, straw smashing three-direction hydraulic strong compaction and bundling to transport, straw compaction bundling, automatic packing after manual bagging are adopted, and combination processes of picking and smashing, compacting and bundling, bagging and packing are conducted on corn straw in the field. And the pull-type picking, kneading, bundling and bagging machine for the straw feed has the advantages that the technology is advanced, the structure is reasonable, the production efficiency is high, and the working quality is good. Straw feed compaction bales made by the machine has good sealing environment, microbial fermentation action can also occur in a natural condition, the slaking degree is improved, the nutrition ingredient is increased, and the palatability, the grazing rate and the digestion and absorption rate are improved when cattle and sheep are fed.

The invention relates to the field of infrared simulation. The invention discloses an infrared point source deflection device and a control method. The device includes: a metal sheet in contact with an electrode, used for simulating the infrared radiation characteristics of a target at a frame rate and a temperature range that can be achieved through heating up and natural cooling processes . The control method includes: determining the energized voltage according to the infrared radiation characteristics of the target; and energizing and heating the metal sheet according to the energized voltage. The invention satisfies the requirement of high frame frequency and is used for simulating the infrared radiation characteristics of important targets; it provides a solid technical guarantee for the use of important ground defenses, and can be used as the last protection means for important ground after missile interception fails. New solutions for existing technology research and development ideas.

The invention discloses a square food packaging tin which comprises a tin body, an inner cover and an outer cover, wherein a turned edge and protrusions are arranged on an upper opening of the tin body, a shaft seat and a lock catch are arranged on the inner cover, a hinged shaft and a tearing buckle are arranged on the outer cover, the inner cover is buckled on the outer side of the turned edge of the tin body, the outer cover is buckled on the inner cover, the hinged shaft of the outer cover is hinged to the shaft seat of the inner cover, and the tearing buckle of the outer cover is connected with the lock catch of the inner cover in a buckled mode. The structure including the tin body, the inner cover and the outer cover is adopted, the tin body is open in the production procedure so that filling can be conveniently and rapidly conducted, the inner cover is pressed so that the food can be conveniently sealed, the outer cover and the tin body are not separated after the inner cover is opened so that the outer cover can be conveniently and repeatedly opened through the hinged shaft in the using process and a good sealing environment can be kept for food, and the square food packaging tin has the advantages of being simple in structure and convenient to use.

The invention belongs to the technical field of metal purification, and relates to a furnace pipe device and a method for preparing ultra-high purity aluminum. The furnace pipe device is characterized by sequentially comprising a furnace pipe outer frame, a thin-wall seal sleeve and a graphite crucible from outside to inside, wherein a hinge furnace lid is arranged at the upper part of the furnace pipe; a water inlet hole, a water outlet hole, an observation hole, an air exhaust hole, an air inlet hole, an exhaust vent, a temperature measuring hole and a pressure measuring hole are formed in the furnace lid; a rubber seal strip is arranged between the furnace lid and the furnace pipe outer frame; and the furnace lid is connected and fastened with the furnace pipe through buckles and bolts. The furnace pipe device disclosed by the invention is capable of melting aluminum one time; the crystal is 65Kg; the height of a crystal aluminum ingot can reach 90cm; the single production can be increased by 2.5 times in comparison with that of a conventional high-purity aluminum production technology; an argon protection environment is only kept in the furnace pipe; the furnace pipe device has no environmental requirements on heating and electromagnetic stirring devices, and is strong in continuous working ability; compared with a conventional production technology, the furnace pipe device and the method have the advantages that the power consumption is reduced by 2 / 3; and the energy consumption cost is saved by 3 / 5.

The invention relates to the field of hydraulic power mechanical components, and discloses a hydraulic cylinder equipped with a device for automatically detecting and processing liquid leakage. The front end of the cylinder casing is fixedly connected with a right hydraulic oil valve, the upper end of the right hydraulic oil valve is provided with a hydraulic oil main port, a limit block is arranged inside the hydraulic cylinder casing, and the right end of the hydraulic cylinder casing is movable A power rod is connected, a cylinder cover is fixedly connected to the opening of the hydraulic cylinder shell, a left hydraulic oil valve is arranged on the left end of the cylinder cover, and a detection device is fixedly connected to the left side of the hydraulic cylinder shell. The upper end of the detection device is movably connected with a switch, and the lower end of the switch is fixedly connected with a main helical gear. The device can provide a good sealing environment for the detection device and improve the detection performance of the detection state through the cooperation of the closed door and the latex block. .