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193results about How to "Less foam" patented technology

Flow-separation back-mixing-free spraying tower disc

The invention discloses a flow-separation back-mixing-free spraying tower disc. The tower disc is formed by combining an upper-layer tower disc and a lower-layer tower disc; and each tower disc comprises liquid descending grooves, liquid descending pipes, liquid accepting grooves, three-dimensional spraying and mass transferring units and liquid guide grooves. The flow-separation back-mixing-free spraying tower disc is characterized in that the long-strip-shaped liquid accepting grooves are formed in the horizontal position of the center of the tower disc; each long-strip-shaped liquid descending groove is arranged between each two adjacent liquid accepting grooves; liquid descending openings are designed in the bottoms of the liquid descending grooves; each liquid descending opening corresponds to one liquid descending pipe, and each liquid descending pipe stretches and is fixed in each liquid descending groove; the three-dimensional spraying and mass transferring units are arranged among the liquid descending grooves and the liquid accepting grooves; the liquid guide grooves, which are flow-separation-plate-type liquid guide grooves, are arranged on the peripheries of cap covers of the three-dimensional spraying and mass transferring units; one liquid guide groove corresponds to one three-dimensional spraying and mass transferring unit; the shapes and the structures of the upper and lower tower discs are the same basically; and one set of liquid descending pipes on the lower edge of one liquid descending groove of the upper-layer tower disc correspond to one liquid accepting groove of the lower-layer tower disc in a staggered manner, so that the upper-layer tower disc and the lower-layer tower disc are combined into the double-layer flow-separation back-mixing-free spraying tower disc.
Owner:TIANJIN CHUANGJU TECHNOLGOY

Method for producing pleocidin by adopting saccharopolyspora spinosa through fermentation

The invention provides a method for producing pleocidin by adopting saccharopolyspora spinosa through fermentation. According to the method, saccharopolyspora spinosa Z68 is adopted as a fermentation strain, an improved fermentation medium is adopted, fermentation cultivation is carried out under the conditions that the temperature is 26-30 DEG C, the rotation speed is 150-220 rpm, the compression-ventilation ratio is 1 to (0.3-0.7), the pot pressure is 0.03-0.04 MPa, and the dissolved oxygen is controlled to be 40% or above, and pleocidin is extracted from the fermentation liquid. According to the method provided by the invention, staring from the physicochemical properties of the fermentation medium of saccharopolyspora spinosa, the fermentation medium with stable yield of pleocidin and little foaming amount, and a material supplementation method are provided. The soybean meal / soybean cake powder in the fermentation medium are replaced by high-temperature soybean cake powder, and the experiment proves that in the fermentation process, the high-temperature soybean cake powder has small possibility of foaming compared with the soybean meal and low-temperature soybean cake powder, while part of fat not available in the high-temperature soybean cake powder but available in the soybean meal and the low-temperature soybean cake powder can be added from the outside in the middle and later periods of fermentation, and the adding at the time can achieve the effect of eliminating foams and solve the problem that the carbon source is insufficient in the later period.
Owner:牡丹江佰佳信生物科技有限公司

Fixing structure of middle beam of refrigerator as well as refrigerator and manufacturing method thereof

The invention provides a fixing structure of a middle beam of a refrigerator. The fixing structure comprises first fixing holes, clamping holes, a reinforcing piece and fixing pieces, wherein the fixing holes are formed at the two ends of the middle beam; the clamping holes are formed at the parts, corresponding to the first fixing holes, of the inner container of the refrigerator, and the shape of each clamping hole is different from that of each fixing hole; the reinforcing piece comprises clamping parts clamped with the clamping holes; the clamping parts are provided with second fixing holes; and the fixing pieces penetrate through the first fixing holes and the second fixing holes. The invention also provides a refrigerator comprising the middle beam fixing structure which is used for installing the middle beam on a refrigerator body. The manufacturing method of the refrigerator comprises the following steps: installing the middle beam on the refrigerator body by adopting the middle beam fixing structure; and then foaming the refrigerator body. According to the invention, the middle beam can be installed by adopting the middle beam fixing structure before the refrigerator body is foamed, thereby preventing the damage of a foaming mould in the foaming technology on an anti-dewing pipe and reducing the subsequent middle beam installation inconvenience brought by deformation due to foaming.
Owner:博西华家用电器有限公司
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