5results about How to "Improve drop efficiency" patented technology

The utility model discloses a safety protection device for chemical engineering, which comprises a feed hopper and a safety filter screen, the top end of the feed hopper is detachably provided with a protective cover, the top end of the protective cover is communicated with a feed pipe, the top end of the feed pipe is in threaded connection with a sealing cover, and a fixed cylinder is inserted into the feed hopper. The safety filter screen is installed on the bottom side of the interior of the fixing cylinder, a top ring is arranged at the position, below the fixing cylinder, in the feeding hopper, the bottom end of the top ring is fixedly connected with a plurality of connecting rods, the connecting rods are all in sealed sliding fit with the feeding hopper, and the bottom ends of the connecting rods are fixedly connected with a lifting ring; and the fixed cylinder and the safety filter screen can be conveniently ejected out from the interior of the feeding hopper, and people can conveniently take out the safety filter screen from the interior of the feeding hopper.

The present invention discloses an electrostatic spinning nanofiber mask preparation device, comprising a workbench, a discharge roller and a take-up roller being provided on the upper side of the workbench, a shearing device being provided between the discharge roller and the take-up roller, the shearing device comprising a vertical plate, the upper side of the vertical plate being fixedly connected to a horizontal plate, the horizontal plate being provided with a downward pressure cylinder, the lower end of the telescopic rod of the downward pressure cylinder being fixedly connected to a flat plate, the bottom of the flat plate being horizontally slidably connected to a slider, the bottom of the slider being provided with a cutting die, the vertical plate being rotatably connected to a reference shaft, the reference shaft being provided with at least two support rods; the upper end of each support rod being rotatably connected to a support rod, the rotation shaft of the support rod being provided with a torsion spring, the end of the support rod being fixedly connected to a bearing die, the bottom of the bearing die being provided with an air cylinder. The present invention uses negative pressure adsorption and a pulling rod to perform a pushing and blowing action, thereby facilitating detachment without requiring an air source or complex air path arrangement, thereby improving work efficiency.

The medical waste feeding device comprises an auxiliary feeding assembly and a waste transfer box, the auxiliary feeding assembly comprises a supporting frame, a plurality of vertical rods are fixedly connected between the inner wall of the top of the supporting frame and the inner wall of the bottom of the supporting frame, and two longitudinal threaded rods are rotationally connected between the inner wall of the top of the supporting frame and the inner wall of the bottom of the supporting frame in an inserted mode. The feeding hopper is driven by the upper motor and driven by the chain to be lifted upwards, then the transverse threaded rod is driven by the second side motor to rotate, and therefore the feeding hopper is fed into a feeding port of a waste transfer box. The medical waste in the feeding hopper is poured into the waste transfer box at a time under driving of a first side motor, after feeding is completed, a feeding sealing plate is driven to move downwards under contraction of an electric push rod, and therefore a feeding opening of the waste transfer box is sealed, and toxic gas generated by waste incineration is prevented from being diffused to the outside.

The present application relates to the technical field of agricultural machinery, in particular to a precision speed-adjustable hydraulic drive fan for air-blowing no-tillage seeding machine, which comprises a fan shell, a hydraulic motor is fixedly installed on the outer wall of the fan shell, a plurality of oil inlet pipes are fixedly communicated with the oil inlet port of the hydraulic motor, an air exhaust pipe is fixedly communicated with the circumferential side wall of the fan shell, and a self-adaptive speed regulation assembly is fixedly communicated with the top end of the air exhaust pipe. The present application adopts the mode of driving the impeller to rotate by the hydraulic motor to replace the traditional mechanical transmission to drive the fan to operate, effectively improves the safety and reliability of the air-blowing seeding fan equipment operation, can accurately detect the seed particle size and instantly adaptively adjust the air-blowing speed of the seeds according to the seed particle size, effectively improves the air-blowing seeding quality, and can adaptively adjust the feeding vibration frequency according to different particle size seeds, so that the seed sowing density is uniform, and the uniformity and continuity of seed sowing are improved.