4results about How to "Helps purify" patented technology

The invention belongs to the field of graphite purification, and particularly relates to a segmented purification method of natural graphite. According to the method provided by the invention, natural graphite and sodium hydroxide are mixed and ground, rapid cooling is performed after microwave treatment, microwave treatment is performed after hydrofluoric acid circulation treatment, and a high-purity graphite product is obtained. In order to solve the problems that in the prior art, natural graphite is low in purity, and the conductivity is reduced after purification, according to the segmented purification method of the natural graphite, high-purity graphite with excellent conductivity is obtained through segmented alkali treatment, microwave treatment, acid treatment and microwave treatment.

The utility model discloses a hydrochloric acid ammonia gas corrosion test case relates to test case technical field, including test case main part, support seat, waste gas treatment tank, support seat top both sides are connected with test case main part and waste gas treatment tank respectively. The utility model discloses a ammonia gas injection pipe and hydrochloric acid injection pipe inject proper amount of ammonia gas and hydrochloric acid gas into test case main part, wherein the hydrochloric acid conduit and ammonia gas exhaust pipe correspondingly connected of ammonia gas injection pipe and hydrochloric acid injection pipe are upside down distribution in test case main part, are favorable to the full mixing of hydrochloric acid gas and the ammonia gas below, form even corrosive gas environment, this can ensure that the corrosion effect that each part in test case receives is more consistent, thereby obtains accurate test result, wherein the test case main part inner wall has been daubed anticorrosive layer coating), can effectively prevent the corrosion of hydrochloric acid and ammonia gas to test case main part inner wall.

The utility model discloses exhaust equipment for purifying waste gas of a water reducing agent reaction kettle, which comprises an air pump, a circulating water pump, a cooling tower, a filter and a cooling tower, an air inlet at the bottom end of the cooling tower is connected with the filter, the other end of the filter is connected with the reaction kettle through a pipeline, and an air outlet at the top end of the cooling tower is connected with the air pump through a pipeline; the filter is of a detachable cylinder structure, an air inlet end and an air outlet end are arranged at the two ends of the filter respectively, and a filter screen is clamped in the filter in a limiting mode. A spirally coiled cold water pipe is arranged above the air inlet in the cooling tower, a water inlet end is arranged on the side wall of the top of the cooling tower, a water outlet end is arranged on the side wall of the bottom of the cooling tower, one end of the circulating water pump is connected with the water inlet end through a pipeline, and the other end of the circulating water pump is connected with the cooling tower through a pipeline; and the other end of the cooling tower is connected with the water outlet end through a pipeline. The reaction kettle waste gas extraction device can safely and effectively extract waste gas of a reaction kettle, reduces corrosion to an air extraction pump, and prolongs the service life of equipment.

The utility model discloses a layered extraction machine for anti-aging components of cosmetics, and relates to the technical field of cosmetics. The cosmetic anti-aging component layering extraction machine comprises a distillation tank, a crushing assembly and an extrusion assembly, a crushing box is arranged on one side of the distillation tank, the crushing assembly is arranged on the crushing box, the extrusion assembly is arranged on the distillation tank and the crushing box, the extrusion assembly comprises a connecting box, a pressing plate and a hydraulic rod, the pressing plate is arranged in the connecting box, and the hydraulic rod is arranged in the connecting box. The free end of the hydraulic rod penetrates through the connecting box and is fixedly installed on the top of the pressing plate. Through cooperative use of a connecting box, a coarse filtering plate, a pressing plate, a connecting plate and a hydraulic rod, a liquid part in a crushed raw material can be separated from solid particles, and anti-aging components can be more effectively extracted from the raw material through extrusion filtering, so that the concentration of the anti-aging components in a final product is increased, and the purification of an extract is facilitated.