Gas and liquid distribution valve of rotary table filtering machine

Abstract

The invention provides a gas and liquid distribution valve 1 of a rotary table filtering machine. The valve comprises flange plates 2, liquid guide grooves 3 and liquid outlets 4. The valve is improved in that the gas and liquid distribution valve 1 comprises an upper layer and a lower layer which are provided with upper and lower distribution valves respectively; the upper distribution valves are provided with openings matched with a filtrate connection pipe of the filtering machine and shift rods connected with a support of the filtering machine; the lower distribution valves are arranged on a column 6 in the center of the filtering machine; the lower distribution valves are provided with openings corresponding to the upper distribution valves and the liquid guide grooves 3 corresponding to the openings; and the gas and liquid distribution valve 1 is provided with a central hole matched with the central column 6. Compared with the prior art, the gas and liquid distribution valve 1 utilizes a no dead corner design, so that filtrates are not easy to scale; the liquid guide grooves 3 of the gas and liquid distribution valve 1 are arranged in an inclining mode, so that the flow rate of the filtrates is improved; an insulating layer is arranged on the gas and liquid distribution valve 1, and filtrate scaling caused by temperature reduction is avoided; and accordingly, the work efficiency of the rotary table vacuum filtering machine is improved, and the maintenance cost is decreased.

Description

technical field [0001] The invention relates to a distributing valve, in particular to a gas-liquid distributing valve for a turntable filter, which is commonly used in the liquid-solid phase separation of wet-process phosphoric acid and phosphogypsum, aluminum hydroxide, titanium dioxide and metallurgy in the phosphate fertilizer industry. . Background technique [0002] At present, the filter used for the separation of wet-process phosphoric acid and phosphogypsum in the phosphate fertilizer manufacturing industry is generally a rotary filter. This turntable filter exposes some defects in itself during use. The liquid guide groove of the gas-liquid distribution valve is generally arranged horizontally, with a flat bottom surface, and a dead angle is formed at the junction of adjacent surfaces of the liquid guide groove. When the filtrate flows in the liquid guide tank, the flow rate of the filtrate on the bottom surface of this horizontal setting is very slow, and there i...

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Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a gas-liquid distribution valve for a turntable filter, which adopts a design without dead ends to eliminate the scaling phenomenon of the filtrate; the liquid guide groove of the gas-liquid distribution valve is arranged obliquely to speed up the flow rate of the filtrate, and further Avoid filtrate fouling; an insulation layer is set outside the gas-liquid distribution valve to avoid the problem of filtrate fouling caused by the drop in ambient temperature, thereby ensuring the normal operation of the turntable filter and improving the working efficiency of the turntable filter. Maintenance time and cost of turntable filter

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