CN2221692Y - Charging and pressure two-position control valve for molten caustic soda tank - Google Patents

Abstract

The utility model relates to a two-position control valve with functions of feeding and pressurizing for a fused caustic soda tank. The valve is composed of a valve body, a valve core with a double-cone body, a valve opening plate, a conical tube of the valve opening, a valve rod, a seal supporting seat, a handwheel, a feed pipe, etc. When the valve core is on an operating position of an upper limit, the caustic soda tank is in the work process of feeding. When the valve core is on the operating position of a lower limit, the caustic soda tank is in the work process of pressurizing. The utility model has the characteristics of simple structure, easy fabrication, short work periodicity, safe operation, and long service life.

Description

The reinforced pressurization of molten caustic (soda) jar two position control valve

The utility model relates to a kind of reinforced pressurization two position control valve of molten caustic (soda) jar, and it belongs to valve class device.

In the granulation of caustic soda is produced, at first be that the alkali lye that will dissolve is squeezed into the alkali jar with pump, the prilling tower granulation is delivered in pressurization then.The reinforced pressurization feeding of alkali liquid tank, existing way is, with pump alkali lye is sent into and to be adopted blind plate that the jar mouth is shut in the jar then, in jar, pressurize again feed liquid is extruded, treat that a jar interior feed liquid uses up, open the reinforced again pressurization of blind plate, this to lean on dismounting jar mouth blind plate to realize the way of the reinforced and pressurization of tank body, its deficiency is conspicuous: one, inefficiency, and labor intensity is big; Two, alkali liquid temperature high workload environment is abominable, and is dangerous big; Three, the blind plate dismounting is frequent, and sealing reliability is poor.

The purpose of this utility model is to provide the reinforced pressurization of a kind of molten caustic (soda) jar two position control valve, and this valve has simple in structure, the service-strong characteristics.

For achieving the above object, the utility model is realized by following scheme.On the valve body of a short pipe, a circular valve hole plate is welded in its upper end, is connected with the sealed support of sealed case on it.Being equipped with in the valve body can be along the spool of its inwall slip, and by the dress valve rod, valve rod links with spiral shell by sealed case and with sealed support and connects on the spool, stretches out on the outer valve rod of sealed support a handwheel is housed.Valve body lower end is the valve opening Taper Pipe, is the connecting tube of valve below it.The reinforced pressurization of the molten caustic (soda) jar of Gou Chenging two position control valve like this is characterized in that: a. and becomes 30～45 ° of directions to pass through the short pipe of a minor diameter mutually with the valve axis angle on the cylindrical of valve body lower end; B. the valve hole plate central authorities valve opening of valve body upper end is up-small and down-big conical bore; C. the valve opening Taper Pipe of valve body lower end is big up and small down coniform; D. spool is a bipyramid face body up and down, on it conical surface body be up-small and down-big and with valve hole plate on valve opening have the cone of same cone angle, following conical surface body is up big and down small and keeps the cone of same cone angle with the valve opening Taper Pipe.

Accompanying drawing is the utility model structural representation.Wherein 1 is the valve adapter, and 2 is the valve opening Taper Pipe, and 3 is valve body, and 4 is spool, and 5 is valve hole plate, and 6 is sealed support, and 7 is valve rod, and 8 is handwheel, and 9 is supply pipe.

Below in conjunction with accompanying drawing the utility model is realized describing to ladle addition pressurization dibit control procedure.When needs during to ladle addition, rotate handwheel, valve rod is moved upward and drive on the spool and move, the conical surface is adjacent to the valve opening of valve hole plate on spool, this moment, spool was in the limes superiors position, and jar is reinforced working state, the i.e. alkali lye of being made by pump, by supply pipe, enter in the jar through valve opening Taper Pipe, adapter.Feed liquid is filled it up with in jar, stops to feed in raw material, and the rotation handwheel moves downward valve rod and promotes spool and moves down, and the conical surface is shut the valve opening Taper Pipe under spool, and this moment, spool was in the limit inferior position, and jar is the pressurized operation state, promptly pressurizes in jar, extrudes alkali lye and removes prilling tower.Alkali lye uses up, rotate handwheel, again carry and open the spool charging, charging finishes, moving runner makes spool move down the pressurization discharging again, the up so like this downslide of spool is in two maximal work positions up and down respectively, has just realized two kinds of operating mode processes to ladle addition and pressurization, has replaced original in the working procedure of dismounting blind plate realization to the ladle addition pressurization.

The utility model is compared with blind plate, is comparatively complicated with regard to its structure, but with regard to himself structure is Simply, easy to manufacture, the work period is short, the efficient height, and safe and reliable, the life-span is long. It can be wide General reinforced pressurized control process for other high-temperature fusion liquid tanks.

Claims (1)

1. the reinforced pressurization of molten caustic (soda) jar two position control valve, its formation is: on a short pipe valve body, circular valve hole plate of its upper end welding, be connected with the sealed support of sealed case on this plate, being equipped with in the valve body can be along the spool of inwall slip, the spool upper end is by the dress valve rod, valve rod links with spiral shell by sealed case and with sealed support and connects, stretch out on the outer valve rod of bearing a handwheel is housed, valve body lower end is the valve opening Taper Pipe, is the connecting tube of valve below it, so the reinforced pressurization of the molten caustic (soda) jar of Gou Chenging two position control valve, it is characterized in that: a. and becomes 30～45 ° of directions to pass through the short pipe of minor diameter mutually with the valve axis angle on the valve body lower end cylindrical; B. the valve hole plate central authorities valve opening of valve body upper end is up-small and down-big conical bore; C. the valve opening Taper Pipe of valve body lower end is big up and small down coniform; D. spool is a bipyramid face body up and down, on it conical surface body be up-small and down-big and with valve hole plate on valve opening have the cone of same cone angle, following conical surface body is up big and down small and keeps the cone of same cone angle with the valve opening Taper Pipe.