SU60145A1 - Caustic smelter - Google Patents

Description

Apparatus for concentrating and extracting solutions, made in the form of several of these rows of floor-arranged and series-connected pipes with external heating are known.

The authors of the invention propose a caustic smelting apparatus consisting of several floors: 1 X and a series of tsars connected in series with external heating, moreover, in order to eliminate flange connections at the places of caustic overflow to the lower side of the tsar, the tsars are provided with nozzles, and the caustic overflow in the vicinity of the bar — overflow reservoirs, cast together with the bar and placed outside the bar of the bar, limiting the firing space of the apparatus.

In the attached drawing of FIG. 1 depicts a separate rye; FIG. 2 - a settling tank in the deep section; FIG. 3 - the same in cross section; FIG. 4 and 5 - vertical sections of the apparatus; FIG. b - layout of the entire apparatus.

As can be seen from the drawing, the proposed caustic smelter

consists of several identical tubular cast-iron drones with open play. The tsargs are installed one above the other and are supported by lateral tides on the iron frame-frame.

CLR1 is a horizontally mounted vertical cast iron pipe; A series of an odd number of such pipes, compressed from the sides and ribbed at the bottom, is located between the two opposite sides of frame 4. Extreme tsegrs are molded in one piece with the walls of the frame (Fig. 4 and 5). Inside the frame with barrels, liquids flow from one pipe to another, lying next to each other, through transfer tanks 3 (Fig. 1), which are poured in from the outside of the frame, separated by corresponding vertical partitions. The desired fluid level in the tsarg is supported by a removable cast-iron partition, inserted into the grooves between the ribbed tube and the last section of the overflow tank, which has a drain hole in the bottom with flared slopes. Tsarga Together with pipes and overflow tanks, it is one piece cast iron that is cast.

Each lower king is turned in relation to the exit of the liquid in uapiy and EXIT from her, located in opposite angles of the tsarg, alternate between them vertically. The gap between the side frames, laid down by the projected wedge-shaped cast-iron, wrapped asbestos cardboard, the strips between the bolts, allows you to change any defective side layers without disassembling the entire overlying part of the apparatus.

The ribbed tubes of the 5 appartments, enclosed in a vertical channel, formed by frames with gaskets laid between them, are heated; topochnymi gases.

On two sides parallel to the pipe axes, the apparatus column is encased in brick brickwork 6. On the other two sides, for observing, cleaning the pipes, adjusting the ursh-liquid in the tsars, there are dense iron parts for disassembling the defective tsars without disassembling the whole installation double-walled casement doors with insulating material embedded between them. The wedge-shaped gaps between the door leaves and the iron frame are sealed with graphitized asbestos.

Full and uniform washing of the finned tubes with the thickening gases is provided in staggered order of the parts of the ator, fourth and subsequent, counting from below, a row of finned tubes with layers 7 of refractory bricks coated with refractory clay.

In case of overflow of the tsargi with lye, the excess of the latter is poured through the wide recess in the wall of the irrelevant reservoir, flows along its outer wall and flows down the downstream branch pipe 2 into the transfer tank of the underlying tsarg.

Fused caustic flows from the lower bottom to the cast iron receptacle through which the nozzle is led to the sump.

The flue gases, after passing through the column, are directed to the burs or are sucked out by a smoke exhauster. Water vapor: outputted to two pipes.

The installation as a whole is devoid of any kind of flange connections that could give a stream of strong liquors or molten caustic through them.

50% of liquor goes to the upper rye; practically anhydrous liquid comes out of the column with a temperature of 500-550, which ensures the possibility of settling impurities.

The sump (Fig. 2), consisting of a solid iron casting, is a deep, elongated; type tank, equipped on three sides with poured pockets. The first of them, located along the narrow side of the tank and separated from the last by a vertical partition, which does not reach the bottom, receives caustic from the column apparatus. The clarified caustic is poured over the opposite side of the settling tank and enters the receiving pocket, from where it goes along the chute to the kyulvala. A third pocket, poured into the long side of the tank, with which it communicates through the slot at its very bottom, serves to remove the red caustic without interrupting the operation of the sump. The red caustic, accumulated at the bottom of the settler, forms a layer covering the gap - the entrance to the side pocket. With a corresponding removal from the last caustic filling it, only the red caustic will flow into the side pocket. The sump is thermally insulated from the outside and is provided with electrical heating, which is switched on at the beginning of work and during long interruptions in the supply of caustic from the column; from above, the sump is covered with a removable iron lid and is sheathed with a iron casing.

The subject matter of the invention.

The caustic smelting apparatus, consisting of several floors and sequentially interconnected i rows of tsars j with external heating, is also distinguished by the fact that, in order to eliminate flange joints in places i of caustic overflow to the lower side, the king-pieces 1 are stocked with

tubes 2, and for transferring the caustic to a row located along the side bar — transfer tanks 3, cast together with the side bars and placed on the outside of the frame of the four side bars limiting the firing range of the apparatus.

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