33results about How to "Avoid Potential Contamination" patented technology

A pill crusher device and method including a base and a lid movable between open and closed positions with respect to the base. The base includes a pill cup holder for holding a cup with one or more pills therein. The cup may include a flange that is keyed to the cup holder to prevent the cup from rotating with the cup holder. A head protrudes from the inside surface of the lid and is shaped to nest within the cup either directly against the pills, or against a second cup placed in the first cup with the pills located between the two cups.

The invention relates to a preparation method of an environment-friendly and efficient sulfurization crosslinking agent 1,6-bis(N,N-dibenzyl carbamyl disulfide) hexane. The preparation method comprises steps as follows: sodium dibenzyldithiocarbamate is synthesized firstly and then reacts with 1,6-dichlorohexane, 1,6-bis(N,N-dibenzyl carbamyl sulfide) hexane is generated, the composition reacts with sulfur, and a product, namely, 1,6-bis(N,N-dibenzyl carbamyl disulfide) hexane is generated. The prepared product contains little inorganic salt and has high purity; the preparation method is simple, practicable and environment-friendly, little waste water is produced in the preparation process, and environmental pollution is reduced.

The invention provides a remote sensor damping and vibration-isolation device improved based on a bi-pod supporting mode, and relates to the technical field of optical remote sensing vibration isolation. The remote sensor damping and vibration-isolation device comprises lower adapting supports, vibration isolation metal outer rods, vibration isolation metal inner rods and an upper adapting support, wherein the lower adapting supports are located in the same plane and horizontally fixed at the lower end of the remote sensor damping and vibration-isolation device; one end of each vibration isolation metal outer rod is fixedly connected with the corresponding lower adapting support, and the vibration isolation metal inner rods are fixedly mounted in the vibration isolation metal outer rods and extend out of the upper end faces, in the axial direction, of the vibration isolation metal outer rods; the ends, extending out of the vibration isolation metal outer rods, of the vibration isolation metal inner rods are fixedly connected; and the upper adapting support is fixedly mounted at the joint of the vibration isolation metal inner rods. The remote sensor damping and vibration-isolation device is high in vibration reduction efficiency and few in consumed system resource, functional separation of a rigid supporting structure and a damping and vibration reduction structure is achieved, the technical problem that the rigidity of a vibration isolation system is hard to maintain effectively is solved, and the temperature maintaining purpose of a working section of the damping and vibration isolation system is achieved.

The invention discloses a novel small door transmission mechanism. The novel small door transmission mechanism is mounted on a decoration plate, the decoration plate is provided with an opening, and the opening of the decoration plate is provided with a small door. The novel small door transmission mechanism comprises a first lifting lug, a second lifting lug, two lifting lug mounting seats, a transmission shaft, a dustproof bin and a motor and is characterized in that the two lifting lug mounting seats are mounted on the decoration plate; one end of the first lifting lug is mounted on one lifting lug mounting seat, and the other end thereof is mounted on one lateral side of the small door; one end of the second lifting lug is mounted on the other lifting lug mounting seat, and the other end of thereof is mounted on the other lateral side of the small door; the dustproof bin is mounted on the decoration plate; the motor is mounted on the decoration plate, and the output shaft of the motor is located in the dustproof bin; one end of the transmission shaft is connected with one end of the second lifting lug, and the other end thereof is mounted in the dustproof bin and connected withthe output shaft of the motor. The novel small door transmission mechanism is simple and compact in structure, low in production difficulty, low in cost and capable of solving the potential pollutionproblem of drugs.

The invention discloses a method for quickly producing a bio-organic fertilizer by using tobacco stalks and the bio-organic fertilizer. The raw materials for producing the bio-organic fertilizer in the method comprise the following substances in percentage by weight: 30 to 70 percent of tobacco stalks subjected to steam explosion treatment, 20 to 50 percent of mixed accessories, 5 to 15 percent of conditioning agent and 1 to 5 percent of microbial flora; and the bio-organic fertilizer is prepared through an aerobic composting process, wherein the stacking C / N ratio is adjusted to be 25 to 35 / 1, the water content is adjusted to be 50 to 65 percent, the pH is controlled to be 5.0 to 8.5, the strip stamping height is 1.0 to 1.5 m, and the tobacco stalks are crushed, screened and packaged after reaching a maturity index. The method has the characteristics of fast treatment, high efficiency and fast maturity, and has an important practical significance for fully using wasted tobacco stalk resources, improving the ecological environment of tobacco planting areas and reducing environmental pollution. The bio-organic fertilizer has high organic content, has the effects of improving the soil structure and improving the soil fertility, and can be widely used for planting economic crops of tobaccos, vegetables and the like.

The invention relates to the technical field of food detection and discloses a sorting device used for bone-containing sliced fish. The sorting device includes a transmission device, and an X-ray detection apparatus and a removal device that are arranged on the transmission device. The transmission device is used for carrying and moving a plurality sheets of the sliced fish, which are uniformly and symmetrically placed on the transmission device. The X-ray detection apparatus is used for detecting the sliced fish to find out bone-containing sliced fish therefrom, and the removal device removes the bone-containing sliced fish according to detection results of the X-ray detection apparatus. The invention also discloses an intelligent control system for the bone-containing sliced fish. The sorting device has simple structure, can significantly reduce manpower cost and has excellent use effect.

The invention relates to a double metal perovskite nano material and a preparation method thereof. The double metal perovskite nano material is a perovskite structure nano material with a particle diameter of 10-20 nm, and its expression is FA 4 Ge Ⅱ Sb Ⅲ Cl 12 , where FA is NH 2 CH=NH 2 + . The preparation method is as follows: 1) adding antimony trioxide and germanium dichloride to hydrochloric acid solution to prepare a mixed solution; 2) adding formamidine chloride to the mixed solution obtained in step 1) at normal temperature, and stirring for 0.5- After 1 hour, a precipitate was obtained, and then filtered with a glass sand core, and the filter residue was dried under reduced pressure to obtain a powder sample of a bimetallic perovskite compound. The double-metal perovskite material provided by the present invention exhibits relatively high stability under conditions of high humidity, long-term light and heat, overcomes the shortcomings of currently commonly used perovskite materials; and has a lower direct band gap , which is conducive to the generation of electronic transitions, thereby improving the photoelectric conversion efficiency.

The invention discloses a method for secondary nucleation and reuse of calcified anaerobic granular sludge, comprising: (1) collecting the calcified anaerobic granular sludge in a bioreactor, squeezing or crushing it; (2) The broken calcified anaerobic granular sludge is screened to obtain calcified anaerobic granular sludge debris within a certain range of particle size; (3) the obtained debris is mixed with the bioreactor inlet and outlet water and normal sludge for culture for a certain period of time; (4) return the mixed cultured sludge to the bioreactor to promote secondary nucleation and accelerate sludge granulation. The invention is easy to operate, has no special requirements on external conditions, helps to maintain high biomass and biological metabolic activity in the biological treatment system, improves process stability, and provides protection for avoiding external environmental pollution from calcified sludge and its adherent substances. It is a reference and has significant application value.

The invention discloses an extraction process of dihydromyricetin in vine tea and a preparation process of vine tea functional beverage, wherein the extraction method includes pretreatment, countercurrent extraction treatment, pretreatment of filter residue, extraction and combination of filter residue, flavonoid Steps such as vacuum concentration and crystallization of the class extract. The extraction method can not only fully extract the raw materials, but also more thoroughly extract the flavonoids remaining in the filter residue, ensuring efficient extraction of the flavonoids, high extraction rate and high flavonoid content. At the same time, the extraction method adopts a combination of water extraction, ultrasonic extraction and high-pressure extraction, which avoids potential pollution caused by the use of organic solvents such as ethanol. The method has high extraction rate and high content of dihydromyricetin.

A “mini-severing and back-off” tool includes a tubular magazine for a column of explosive pellets that are sized in diameter to provide a predetermined weight of explosive per unit column length. The tubular wall is vented at prescribed intervals for fluid pressure equalization between the internal bore of the tubular and the fluid pressure around the outside of the tubular. A fluid barrier is positioned between one end of the explosive pellet tubular and a detonator or an explosive booster provided to detonate the explosive pellet tubular. The explosive pellet tubular is positioned within the flow bore of a pipe string and adjacent to an intended pipe joint, and the explosive pellet tubular is detonated simultaneously with an application of torque on the pipe string, wherein the torque is applied in the thread release direction to disassemble the intended pipe joint.