9results about How to "Change stability" patented technology

The invention belongs to the technical field of phosphorite beneficiation, and particularly discloses a method for improving silicon-calcium collophanite double-reverse flotation froth, which comprises the following steps: adjusting the pH value of phosphorite pulp to be acidic by using oxalic acid, adding a magnesium removal collecting agent for reverse flotation magnesium removal to obtain magnesium-removed concentrate pulp, adding activated carbon into the magnesium-removed concentrate pulp, uniformly mixing, diluting the ore pulp, adjusting the pH value to be 6.5-8, and filtering to obtain the silicon-calcium collophanite double-reverse flotation froth. Adding the foam-inhibiting agent and uniformly mixing; and a cation collecting agent is added for dealumination and desiliconization reverse flotation, and ore pulp obtained after reverse flotation is subjected to solid-liquid separation, so that phosphate concentrate is obtained. According to the method provided by the invention, the pH is adjusted by adopting oxalic acid during reverse flotation magnesium removal, activated carbon is added into ore pulp after magnesium removal to mix an adsorption agent, and a foam inhibition agent is added; the physical and chemical properties of the surface of the foam can be changed, the half-life period of the foam is greatly shortened, and the beneficiation effect is ensured.

This utility model discloses a steel frame structure for wardrobe door panel installation, including a base, support columns, connectors, and crossbars. The base, support columns, and connectors are arranged in groups, with multiple groups provided. The base has an installation groove for one end of the support column to be embedded in. The connector is positioned to connect to the support column. The crossbar has a sliding groove, and the connector has a slider that mates with the sliding groove. This utility model can be used with various types of materials, and the overall structural stability remains unchanged after disassembly and reassembly, enabling multiple reuses and significantly reducing operating costs.

The invention discloses a continuous treatment system and method for low-temperature small cresol in coal gasification, and relates to the technical field of treatment systems, and the continuous treatment system comprises an alkali washing unit, an oxidation deodorization unit, a decoloration deodorization unit, an anti-oxidation unit, a rectification unit and an improvement unit. According to the continuous treatment system and method for the medium-low-temperature small cresol in coal gasification, through cooperative arrangement of the alkali washing unit, the oxidation deodorization unit, the decoloration and deodorization unit, the anti-oxidation unit, the rectification unit and the improvement unit, the effects of desulfurization, denitrification, decoloration, deodorization, organic matter removal and anti-oxidation on the medium-low-temperature small cresol in coal gasification can be achieved; the quality of phenol, o-cresol, m-cresol, p-cresol and xylenol products separated from medium and low temperature small cresol is greatly improved, the product quality is ensured, meanwhile, the stability of the products in the coal gasification medium and low temperature small cresol refining process is changed, and the oxidation resistance is improved.

The utility model discloses a diamond wire electroplating bath, relates to the technical field of electroplating baths, and aims to solve the problems that in the prior art, a single electroplating bath cavity is adopted in the production and machining process of a diamond wire, the electroplating temperature fluctuation is large, carborundum is prone to caking in the machining process, products are scrapped, and the electroplating quality of the diamond wire is affected. A sealing cover is fixedly installed above the electroplating tank, a partition plate is fixedly installed in the electroplating tank, a sand feeding cavity is formed in the electroplating tank along one side of the partition plate, a sand plating cavity is formed in the electroplating tank along the other side of the partition plate, and a first electric heating pipe is arranged at the bottom in the sand feeding cavity; a first electric heating pipe is arranged at the inner bottom of the sand plating cavity and fixedly connected with the electroplating tank through screws, a first temperature sensor is arranged above one side of the first electric heating pipe and fixedly connected with the electroplating tank through screws, and a second electric heating pipe is arranged at the inner bottom of the sand plating cavity and fixedly connected with the electroplating tank through screws.

The present application provides a system and method for live cell RNA imaging and sensing. The system of the present application comprises: (i) a target recognition module comprising a circular binding RNA, the circular binding RNA comprising at least one target binding sequence configured to form a double-stranded binding region by complementary binding with a sequence on a target RNA; and (ii) a signal module comprising a double-stranded RNA binding protein and a signal element, the double-stranded RNA binding protein being connected to the signal element, wherein the double-stranded RNA binding protein recognizes and binds to the double-stranded binding region. The method of the present application comprises introducing the system into a live cell and performing imaging and detection. The system of the present application has the advantages of non-invasiveness, low fluorescence background and universality.

The application discloses a kind of porous alumina microspheres and its preparation method, the method comprises the following steps: 1) configuration preparation porous alumina microspheres precursor sol;2) the sol is carried out spray drying, and porous alumina microspheres precursor is prepared;Porous alumina microspheres precursor is prepared by heat treatment, and porous alumina microspheres are obtained.The porous alumina microspheres provided by the application are prepared by heat treatment of porous alumina microspheres precursor under flow field, and the porous alumina microspheres prepared by the method have the advantages of large scale, low cost, simple operation, short preparation process.

The present invention discloses a building landscape ecological river retaining wall, comprising a foundation bottom plate, at least two pier walls are arranged on the foundation bottom plate, and a multi-layer arch wall is arranged between adjacent pier walls, and the multi-layer arch wall is distributed in a step-like manner from bottom to top, and there is a gap area between two adjacent layers of arch walls. The retaining wall is not only permeable, but also can plant plants in the gap area, and has both practical value and ornamental value. The present invention also discloses a construction process of the building landscape ecological river retaining wall, which combines 3D printing construction technology with reinforced concrete structure, not only ensuring the overall structural strength of the retaining wall, but also simple construction and easy operation.

The invention provides a green resourceful treatment method for rare earth ammonium sulfate waste liquid, and relates to the technical field of wastewater treatment.The green resourceful treatment method comprises the following steps that S1, a fly ash sample is dried to constant weight; s2, pre-grinding lamellar KOH to 200 meshes, and drying the lamellar KOH to constant weight to obtain KOH powder; s3, mixing KOH powder with fly ash according to a mass ratio of 2: 3, and carrying out dry modification treatment on the fly ash by using KOH to obtain a KOH-fly ash composite material; s4, the KOH-fly ash composite material is dissolved in deionized water, and a KOH modified fly ash material is obtained; s5, adding 10 mL of the KOH modified fly ash material into 200 mL of the rare earth ammonium sulfate waste liquid, stirring, and standing; the KOH modified fly ash material is added into the rare earth ammonium sulfate waste liquid for the first time, the cost of directly treating ammonia nitrogen and heavy metal in the waste liquid is avoided, the process is simple, and a new utilization way of the rare earth ammonium sulfate waste liquid is provided.

The invention relates to the technical field of building material production, and discloses a wallboard mold which comprises a frame, a fixed plate and a movable plate which are arranged on the front side and the rear side of the frame, a filling box arranged in the middle of the frame, cover plates arranged on the upper face and the lower face of the frame, and a feeding opening formed in the fixed plate. Wherein the filling box is used as a cavity in the wallboard; the feeding port is used for injecting wallboard materials into the frame so as to adjust the weight of the board wall. The weight of the wallboard can be reduced, the surface flatness of the wallboard is improved, the size of the cavity can be customized, and the production efficiency is improved.