SU118494A1 - Wet autoclave for making liquid glass - Google Patents

Description

The subject of the invention is a horizontal autoclave for obtaining wet glass from a raw water mixture by a wet method.

The disadvantage of existing autoclaves is the relatively low pressure in them and their small heat transfer, reaction surface, as a result of which the dissolution rate of the raw material is low and, consequently, the performance of such an autoclave is low.

The proposed device allows the process of forming liquid glass to be accelerated directly from the raw mix or from silicate lumps by carrying out the process at a higher pressure, thereby increasing the productivity of the autoclave. This is achieved by performing the autoclave in the form of heated, periodically rotary, pipes assembled into manifolds, which provides a significant increase in the reaction, heat transfer surface and pressure in them. FIG. 1 shows a section autoclave; in fig. 2-autoclave, view from the right side along arrow B; in fig. 3 is the same, as seen from the left end of the arrow B; in fig. 4 is the same, section on AA.

The autoclave is a welded construction of rolled longitudinal pipes 1. The ends of these pipes are welded to manifolds 2 of the same pipes.

Inside the central tube 3, a tube 4 passes through the entire length of the autoclave, which serves to transfer heat through the rotating sleeve 5 to the vessel 6, in which instrumentation is installed. On the other side of this pipe, a valve 7 is installed to control the water level and the air outlet when it is filled with water.

The rigid fastening of the structure is carried out with the help of bandages 8, two middle bands are supported on supporting rollers 9.

All longitudinal pipes are assembled into two manifolds, each consisting of the same pipes and located at the ends of the autoclave. Wednesday no. 118494

A longitudinal pipe connects both collectors to each other with the help of processes of the pipes 10, forming a channel for discharging liquid glass. The autoclave is rotated periodically by means of a drive and chain transmission 11 on the central tube of the autoclave. The autoclave performs one revolution in two steps with a break of 20-30 seconds.

The central tube is terminated by a flange 12, to which a high pressure valve 13 is fixed for discharging liquid glass.

To load the autoclave, a charging port 14 is welded at the top of the manifold, which is a flanged nozzle that is closed by a lid 15 with a clamping device 16.

In the uppermost part of the collector, on the side opposite to the loading hatch, a nozzle is closed, which is closed by a high-pressure tap 17. This nozzle with a tap serves to release air (steam) from the internal chamber of the apparatus when the autoclave is loaded.

For the control pressure measurement in the autoclave, a tap 18 and a pressure gauge 19 are connected, connected by a coil 20. To measure the pressure, the rotation of the autoclave stops (the tap and pressure gauge must be on top) and the tap of the pressure gauge opens.

In the collector, at the upper level of the fluid (0.80 of the volume of the whole apparatus), a branch pipe with a tap 21 is also installed to control the filling level of the autoclave.

The autoclave is heated by a rotating electric furnace with nichrome coils 22, which are placed directly along the body of the autoclave. Reliable heat insulation is made above the spirals.

Subject invention

An autoclave for the manufacture of liquid glass by a wet method from an aqueous raw material mixture containing, for example, sodium hydroxide with amorphous silica or a silicate block, characterized in that, in order to accelerate the process of manufacturing liquid glass by carrying out it at a higher pressure, heated, periodically swivel, horizontal pipes assembled into manifolds, rigidly connected by annular bands.

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FIG 4