32results about How to "No return" patented technology

The invention discloses multifunctional washing oxygen granules and a preparation method thereof. The invention solves the problems of poor washing effect and harm to the human body in the existing washing product. The oxygen granules comprise sulfonic acid, sodium carbonate, sodium sulfate, sodium peroxycarbonate and sodium carboxymethyl cellulose. The preparation method of the oxygen granules comprises the following steps: (1) preparing the following raw materials in percentage by mass: 5-10% of sulfonic acid, 25-35% of sodium carbonate, 10-25% of sodium sulfate, 20-60% of sodium peroxycarbonate and 1-5% of sodium carboxymethyl cellulose; (2) sequentially mixing the sulfonic acid, sodium carbonate, sodium sulfate, sodium peroxycarbonate and sodium carboxymethyl cellulose under anhydrous and low constant temperature conditions to obtain a mixture; (3) granulating the mixture at low temperature; and (4) drying the obtained granules at constant temperature. The technique is simple; and the oxygen granules prepared by the method have favorable washing effect and high capacities of stain removal, sterilization, bleaching and odor removal.

The invention provides a zoom mechanism for optical instruments, which is characterized in that it includes a bracket, a guide rail, a zoom lens group, a compensation lens group, a first return spring, a second return spring, a motor and a planar cam. The magnification lens group is set in cooperation with the plane cam, and the rotation of the plane cam can drive the zoom lens group to slide on the guide rail in a direction away from the compensation lens group; the compensation lens group and the plane The cams are arranged in cooperation, and the rotation of the plane cam can drive the compensation lens group to slide on the guide rail in a direction away from the zoom lens group. The zooming mechanical device for optical instruments provided by the invention can continuously and stably change the focal length data, precisely adjust the focus, and obtain clear and stable images.

The invention provides an activated coke adsorbent for wastewater purification and a preparation method thereof. The activated coke adsorbent for wastewater purification is made of lignite and coke pulverized into a certain fineness, tar, asphalt, solid metal salt and water after deashing, It is obtained by kneading, forming, drying, carbonization and activation. The activated coke adsorbent for purifying wastewater prepared by using the above raw materials and method not only has good purifying effect, but also has low cost, simple preparation and strong practicability.

The invention relates to a papermaking equipment, comprising a screw press machine, a plug screw conveyor whose feed port communicates with the discharge port of the screw press machine, and a shredder whose feed port communicates with the discharge port of the plug screw conveyor , a heater whose feed inlet communicates with the discharge outlet of the shredder, and a disc-type heat disperser whose feed inlet communicates with the heater outlet, and is characterized in that the first spindle of the screw press is provided with a disc There are two left-handed impellers and right-handed impellers with opposite rotation directions. The main shaft between the left-handed impeller and the right-handed impeller is also equipped with stirring teeth; the third main shaft of the shredder and the fourth main shaft of the heater are set on the disk The impeller is divided into a complete impeller segment and a toothed impeller segment. Compared with the existing technology, Simple and compact structure, small footprint, no empty return, easy maintenance ,efficient.

The present invention discloses a micro-positioning device based on normal stress electromagnetic driving, which comprises a base, a mover ring, a flexible transmission assembly and multiple sets of normal stress electromagnetic actuators. A mounting cavity is arranged on the base, and the mover ring is mounted in the mounting cavity through the flexible transmission assembly. The multiple sets ofnormal stress electromagnetic actuators are mounted on the base which is on the circumferential side of the mover ring in a ring shape; each normal stress electromagnetic actuator comprises stator yokes and coil windings wound on the stator yokes. A plurality of contact heads in one-to-one correspondence with the stator yokes are arranged on the circumferential side of the mover ring; each statoryoke is provided with a through slot; each contact head is located in the through slot of the corresponding stator yoke; and a working air gap is formed between the contact head and the through slot.The micro-positioning device based on normal stress electromagnetic driving of the invention has the advantages such as simple and compact structure, large output force, fast response speed, large motion range, high positioning accuracy and small rotational inertia.