64results about How to "To achieve the purpose of defoaming" patented technology

The invention relates to a defoaming master batch for rotational molding and a preparation method thereof, belonging to the technical field of plastic processing. The defoaming master batch is prepared by mixing and stirring raw materials in a certain ratio and then extruding and granulating. The defoaming master batch is characterized by containing the following raw materials in percentage by mass: 70-86% of linear low-density polyethylene, 8-18% of bubble nucleating agent, 3-6% of dispersing agent and 3-6% of bubble eliminant. The invention aims to provide a defoaming master batch for rotational molding and a preparation method thereof. The defoaming master batch is low in cost and can solve the problem on bubbles of a rotational molding product; the rotational molding product prepared from the defoaming master batch is free of bubbles and has favorable processability, good plasticization performance, high production efficiency and high product performance; and the preparation method is scientific and reasonable, and is simple and easy to implement.

The invention discloses a defoaming device. The defoaming device comprises a reactor body, an air inlet pipe, a sprinkling pipe and a ventilating pipe, wherein the air inlet pipe is connected to the inner wall of the reactor body; one end of the air inlet pipe is connected with an air compressor through a hose; one end of the sprinkling pipe is arranged on the liquid level in the reactor body, andthe other end of the sprinkling pipe is arranged under the liquid level in the reactor body; a sprinkling device is arranged on one end of the sprinkling pipe arranged on the liquid level in the reactor body; the sprinkling device is arranged on the liquid level in the reactor body; the sprinkling pipe is communicated with the air inlet pipe through the ventilating pipe; through holes are formedin a position, which is connected with the air inlet pipe, of the sprinkling pipe; the ventilating pipe is arranged under the liquid level in the reactor body. Through the way, defoaming is carried out by adopting an air-water combination sprinkling mode, the purpose of defoaming is achieved by utilizing an impact force to break foams, defoaming dead angles can be removed, and a defoaming effect is increased; liquid in a reactor can be repeatedly utilized, no pollutant is introduced in, fermented microorganisms can be protected, and the application range is wider.

The invention discloses ultrasonic-assisted rapid straw anaerobic fermentation equipment. The equipment structurally comprises a sight glass device, an anti-dross crusting device, an anaerobic fermentation tank and support legs, wherein the bottom of the anaerobic fermentation tank is connected with three support legs arranged at equal intervals, the sight glass device is mounted on one side of the top of the anaerobic fermentation tank, and the anti-dross crusting device is further arranged on the anaerobic fermentation tank. Compared with the prior art, the equipment has the beneficial effects as follows: a dross layer is stirred by an anti-dross crusting plate to prevent lignocelluloses from crusting, cellulose, hemicelluloses and lignin intertwined structures can be dissolved by a dispersion and dissolution promoting assembly, the crusting phenomenon can be effectively prevented, fermentation of straw is facilitated while manual clearing is not required, continuous pumping can be realized by boosting and bubble removal to boost to make bubbles burst so as to remove bubbles, a pumping ring is arranged to increase the pumping travel and increase the pumping volume, and the bubbleremoval efficiency is improved.

The invention relates to an automobile spray paint formula easy to defoam and a manufacturing method of the automobile spray paint formula. The manufacturing method comprises the steps that sec-butyl acetate, methyl ethyl ketone, isopropanol, oxidation castor oil and 1 / 16 second nitro-cotton are added, stirring is continuously conducted for 30 min, and after the nitro-cotton is completely dissolved, modified rosin resin is added, and stirring is continuously conducted for 30 min; and finally, an efficient matting agent, non-matting wax pulp and a defoaming polysiloxane and polyethylene glycol hydrophobicity solid mixture are added, and stirring is conducted for 5 min. An application method comprises the steps that a nitro coating and banana oil are mixed according to the proportion of 7:3 and evenly stirred and then can be used for spraying. The 1 / 16 second nitro-cotton and modified rosin resin polymer is the main film forming substance of the coating, the sec-butyl acetate, the methyl ethyl ketone, the isopropanol and the oxidation castor oil are primary solvents for dissolving the nitro-cotton, the defoaming polysiloxane and polyethylene glycol hydrophobicity solid mixture is a main additive for eliminating coating bubbles, the surface tension of the bubbles can be changed, and the bubbles are rapidly broken.

The invention discloses a silk-screen printing waterproof adhesive for thin-film circuit and a preparation method thereof. The waterproof adhesive is prepared by mixing modified acrylate resin polymers (1 and 2) of low molecular weight and different degrees of functionality obtained by performing organic peroxide cracking on commercially available acrylic resins of different degrees of functionality with a leveling agent and a solvent at a specific ratio; during use, the waterproof adhesive can be coated to thin-film circuits made of PET, PE and PP through silk-screen printing by matching with corresponding curing agents, and the aims of resisting water, insulating moisture and protecting the circuit are achieved. According to the waterproof adhesive, a defoaming agent is not needed, the waterproof adhesive has the advantages of excellent printing performance, long construction time, high adhesive force, high-temperature and humidity resistance, creep resistance, simplicity in repeated attachment and excellent waterproof performance and has wide market application prospects, and the service life of the thin-film circuit is greatly prolonged.

The invention relates to a method for measuring blast furnace slag discharge and blast furnace slag defoaming, and belongs to the technical field of blast furnace slag discharge measurement and defoaming methods. When the present invention is implemented, the blast furnace slag is weighed and calibrated at different temperatures in advance to obtain the relationship curve or relational expression between the blast furnace slag density and temperature; The liquid level height of the tank and the temperature of the slag are tested at the same time; the volume of the slag loaded is calculated according to the liquid level, and the density of the slag loaded is obtained according to the relationship curve or relational formula between the density of the blast furnace slag and the temperature. The volume number and the density are calculated to obtain the amount of slag loaded in the slag tank. The invention can accurately measure and calculate the discharge amount of blast furnace slag under the condition of not adding a weighing device, and thereby analyze the influence of the amount of slag and iron remaining in the furnace hearth on the stability of the blast furnace. The defoaming agent includes vanadium extraction tailings, which can achieve the purpose of blast furnace slag defoaming and harmless treatment of vanadium extraction tailings.