5results about How to "Consistent proportion" patented technology

This invention provides a method for producing single-cell protein using a mixed bacterial culture, comprising the following steps: performing primary seed culture on methanogenic bacteria, *Tricholoma materata*, and *Glucosinolate methyl-eating bacteria* to obtain primary seed solutions; mixing the primary seed culture solutions evenly to obtain a mixed bacterial solution; inoculating the obtained mixed bacterial solution into a secondary seed culture medium for cultivation to obtain a secondary seed solution; inoculating the obtained secondary seed solution into a fermentation medium for scale-up cultivation to obtain a fermentation broth; separating the solid and liquid components of the obtained fermentation broth, harvesting the bacterial cells, and obtaining single-cell protein. This method for producing single-cell protein using a mixed bacterial culture improves the utilization rate of the carbon source methane and the yield of single-cell protein.

The application belongs to a two-flow evaporator, which is a one-piece welded structure, comprising two parallel flat tube groups, inlet / outlet header, intermediate header, fins and two guards; the two flat tube groups are inlet flow flat tube group and return flow flat tube group, fins are arranged between adjacent flat tubes, the two guards are arranged outside the flat tube groups, and the two ends are fixed with the inlet / outlet header and the intermediate header; the inlet / outlet header is provided with a first partition plate, which divides the inner cavity into an end inlet flow cavity and a liquid outlet cavity, which are respectively connected with the inlet flow flat tube group and the return flow flat tube group, and the tube body is provided with an air inlet and a liquid outlet hole at one end; the intermediate header is provided with a second partition plate, a third partition plate and an intermediate partition cover, which divide the inner cavity into a middle inlet liquid cavity and a middle return liquid cavity, which are respectively connected with the inlet flow flat tube group and the return flow flat tube group, and the refrigerant flows from both ends to the middle through the middle inlet liquid cavity, and flows into the middle return liquid cavity through the upper and lower space of the intermediate partition cover, so as to realize double-flow heat exchange. The application can significantly reduce the core resistance and improve the temperature uniformity.

The utility model discloses a kind of fresh-keeping container gas regulation and control devices, it is related to the field of fresh-keeping container, to solve the problem that the gas proportion in fresh-keeping container is different when the gas output after target gas mixing in prior art is transported, affect the preservation of goods. The spiral channel formed by every one described spiral vane and the inner wall of mixing box and fixed outer tube is separated by another two described spiral vane to form first gas channel, second gas channel and third gas channel, every group described first gas channel, second gas channel and third gas channel are communicated, and the uppermost end outside annular array of mixing box side wall along first gas channel is provided with first air inlet, and the lower end of mixing box side wall along first air inlet is provided with second air inlet and third air inlet, and first air inlet, second air inlet and third air inlet are communicated with corresponding first gas channel, second gas channel and third gas channel respectively.

The utility model relates to the technical field of polyurethane plate production, in particular to a raw material feeding device for polyurethane plate production, which comprises a raw material box and two pairs of supporting legs, the top of the raw material box is fixedly connected with a feeding nozzle, and the side wall of the raw material box is provided with a discharging assembly. The discharging assembly comprises a material guiding pipe fixedly connected with the side wall of the raw material box, a material guiding opening is formed in the side wall of the material guiding pipe, a stopping block is slidably connected to the interior of the material guiding pipe, one end of the stopping block is fixedly connected with a first linkage column, the first linkage column penetrates through the material guiding pipe, and the first linkage column is fixedly connected with a second linkage column. Through cooperative arrangement of a material guide pipe, a first linkage column and a stop block, when a new quantitative cup is replaced every time, a flow guide pipe can stop discharging, it is ensured that the amount of discharged materials is kept consistent every time, it is ensured that the proportion of polyurethane plate raw materials produced every time is consistent, and therefore all indexes such as the physical performance and the chemical performance of a product are kept stable, and the production efficiency is improved. Product quality fluctuation is reduced, and the overall product quality is improved.

The utility model relates to the technical field of watering and fertilizing for wheat planting, and discloses a watering and fertilizing machine convenient for wheat planting, which comprises a trolley, the upper part of the trolley is fixedly connected with a mixing barrel, the upper part of the mixing barrel is provided with a barrel cover, the middle part of the trolley is provided with a scraping component, and the right side of the upper part of the trolley is fixedly connected with a transfer pump. The input end of the material pumping pump is fixedly connected to the interior of the mixing barrel, the output end of the material pumping pump is fixedly connected with a connector, mounting blocks are fixedly connected to the two sides of the exterior of the connector, replacement assemblies are arranged in the two mounting blocks, and a spray head is inserted into the connector. According to the utility model, when the fertilizer and water are mixed, the fertilizer attached to the barrel wall can be conveniently scraped, and the water and the fertilizer can be more uniformly mixed by scraping the attached fertilizer, so that the proportion and the concentration of the water and the fertilizer can be kept consistent when the fertilizer is applied each time, and the fertilizer application effect is improved.