4results about How to "Reduce granularity" patented technology

The utility model relates to the field of fish scale glue processing, in particular to a fish scale glue preparation pretreatment device. The technical problems that in the grinding process of raw materials of fish scale glue, although a stirring mill is low in cost and high in efficiency, the grinding fineness is relatively low, and certain waste can be caused to the raw materials, and although a stone mill is low in cost and high in grinding fineness, the grinding efficiency is low are solved. According to the technical scheme, the fish scale glue preparation pretreatment device comprises a frame assembly, a crushing assembly and a grinding assembly. According to the utility model, the triple crushing mechanism and the triple grinding mechanism are arranged, so that the equipment can perform brief but low-fineness crushing on a fish scale gelatin raw material, and then a plurality of stone mills are used for simultaneously performing high-precision grinding on the raw material so as to efficiently release collagen in the raw material, so that the grinding time is shortened, and meanwhile, the grinding efficiency is improved. Raw materials are efficiently utilized.

The present invention belongs to the technical field of optical fiber sensors, and specifically relates to a high-fineness all-quartz optical fiber F-P cavity sensor and a manufacturing method thereof. The optical fiber F-P cavity sensor comprises a first optical fiber and a second optical fiber, and also comprises a quartz capillary tube 1; the end face of the first optical fiber close to the second optical fiber is a reflection end face 1, and the reflection end face 1 is a plane and perpendicular to the length direction of the first optical fiber; the end face of the second optical fiber close to the first optical fiber is a reflection end face 2, and the reflection end face 2 is a concave spherical surface; compared with the prior art, the present invention (1) the reflection end face 2 is a concave spherical surface, which plays a focusing role of a concave mirror, offsets the divergence of the light beam in the cavity, thereby matching the reflectivity of the two reflection end faces, allowing the cavity length to be increased, obtaining an interference spectrum with a smaller free spectral range, improving the fringe fineness, improving the resolution, and effectively reducing demodulation instability and jump; (2) the reflection end face 2 can withstand higher temperatures.

This application provides an absolute pressure sensor with an F-P cavity structure and a method for detecting air pressure. The absolute pressure sensor includes: a light source module for linearly modulating the received external sawtooth wave modulation signal to output continuous laser light; an optical fiber transmission module for unidirectional transmission of the continuous laser light to block the reflected light of the continuous laser light from returning to the light source module; an F-P interference cavity including an exit surface of an optical fiber collimator coated with a low-reflectivity film and a total reflection mirror fixed on a pressure-sensitive elastic element. The pressure-sensitive elastic element senses changes in air pressure and deforms, causing the total reflection mirror to shift. The continuous laser light is reflected on the exit surface and the total reflection mirror to form coherent light, generating a beat frequency optical signal carrying air pressure information; a photoelectric detection module for processing the beat frequency optical signal carrying air pressure information transmitted via the optical fiber transmission module to obtain an electrical signal that meets demodulation requirements; and a signal demodulation module for processing the electrical signal that meets demodulation requirements to obtain the air pressure value.

This invention discloses a high-efficiency crushing device for agricultural product processing, relating to the field of agricultural product crushing technology. It includes a base, a support frame at the top of the base, a rotating ring rotatably disposed between two support frames, a crushing cylinder disposed inside the rotating ring, a fixed frame at the bottom of the crushing cylinder, a rotating cylinder at the center of the fixed frame, a connecting plate outside the rotating cylinder, a collecting cylinder connected to the rotating cylinder, a fixed cylinder on the connecting plate, a movable cylinder slidably sleeved outside the fixed cylinder, one end of the movable cylinder penetrating the inside of the collecting cylinder and having a pressure plate installed thereon, a rotating rod inside the fixed cylinder, and a rotating tube rotatably disposed outside the rotating rod. Driven by a power component and via a gear system, the two sets of crushing blades rotate synchronously in opposite directions, resulting in higher crushing efficiency, ensuring thorough crushing and uniform particle size, and improving the production efficiency of agricultural product processing.