Carbon black pH value adjustment apparatus and method

Abstract

The invention provides carbon black pH value adjustment apparatus and method. The carbon black pH value adjustment apparatus comprises an alkaline solution preparation tank; the interior of the alkaline solution preparation tank is divided into a first chamber and a second chamber by a screen mesh; a stirrer is installed inside the first chamber; the bottom of the second chamber communicates withan input end of a plunger pump through a tube; a filter is installed inside the tube; a pressure regulating valve is installed at an output end of the plunger pump; a flow meter is installed on an output pipe of the pressure regulating valve; sluice valves are respectively installed on an input pipe and an output pipe of the flow meter; the sluice valves installed on the output pipe of the flow meter synchronously communicates with two pipelines which are respectively installed with sluice valves; and the two pipelines communicate with a granulating water pipe. Through communication with the granulating water pipe, the carbon black pH value adjustment apparatus is capable of uniformly mixing an alkaline solution with granulating water; the alkaline solution is introduced before entering ofthe granulating water and a binder into a granulation machine, so that surface acidity and basicity of carbon black are changed; and acidity of the binder is neutralized by an alkali adding device without reduction of adhesive property, so that pH value of the carbon black is effectively increased. Therefore, quality stability of carbon black products can be effectively guaranteed so as to meet customer needs.

Description

technical field [0001] The invention belongs to the technical field of carbon black production, and relates to a carbon black production device, in particular to a device and method for adjusting the pH value of carbon black. Background technique [0002] "Rubber vulcanization" is also called cross-linking and curing. It is a process in which cross-linking aids such as vulcanizing agents and accelerators are added to rubber to transform linear macromolecules into three-dimensional network structures under certain temperature and pressure conditions. The rubber after vulcanization has changed the inherent defects of low strength, low elasticity, cold and hard hot stickiness, and easy aging, and has significantly improved wear resistance, swelling resistance, heat resistance, etc., and expanded the scope of application. [0003] Carbon black acts as a catalyst in the rubber vulcanization reaction, making the vulcanization initiation reaction happen faster. The main impact ite...

AI Technical Summary

Problems solved by technology

However, the improvement of the technical index of the raw oil will increase the cost, and the sulfur element in the raw oil cannot be completely removed, and acidic substances will still be formed

Therefore, there are the following disadvantages: (1) Increasing the pH value of carbon black granulation will increase the ash content of carbon black and affect product quality

(2) To change the properties of granulation water, it is necessary to increase the water treatment device, and the input cost is relatively large

(3) Controlling the sulfur content in raw oil will increase the cost of raw oil

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