SU1533748A1 - Apparatus for hydrothermal treatment - Google Patents

Abstract

The invention relates to the design of hydrothermal treatment apparatus for calcining catalysts in a steam medium and can be used in developing the technology for producing new catalysts by expanding technological capabilities. The apparatus includes a housing with zones of heat treatment, supply and selection of coolant, a container with a granular material. Heating elements are installed between these zones in the coolant flow and are located in front of the container with granular material. The coolant supply zone is equipped with a hydraulic regulator that provides a hydraulic lock with the medium in the apparatus connected to the coolant supply pipe. 1 il.

Description

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The invention relates to the construction of hydrothermal treatment apparatus for calcining zeolite-containing catalysts in a vapor medium, and can be used in the development of the technology for the production of new catalysts.

The purpose of the invention is the expansion of technological capabilities and operational reliability.

The drawing shows the device section.

The hydrothermal treatment apparatus comprises a housing 1 with a heat-insulated shaft divided into zones A, B, C communicating with each other (A is the zone of formation and supply of heat carrier; B is the zone of sharp reheating of heat carrier; C is the zone of hydrothermal treatment of the catalyst product).

The upper suit of zone A contains split flanges 2 connected to the main body 1 and the cover 3 of the apparatus. The lower part of zone A contains overflow pipes C, heating elements 5, a partition 6 separating the lower zone A from zone B, K zone A is supplied with a hydraulic regulator 7 for supplying water outside the apparatus connected to the evaporator 8 by means of a pipe 9, such as a duck, providing water seal with medium in the apparatus. The hydraulic controller 7 is equipped with a level indicator 10 and an adjustable valve 11.

Zone B is made in a rectangular section with horizontal guides 12, on which are placed three collapsible cassettes 13 with heating elements 1, a hatch 15 for replacing the cassettes 13, a cover 16 made on a rotating device 17. There are connections made through the shell 18 of the hatch 15 wires to the heater terminals

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elements 1. The cover 16 of the hatch 15 is heat-insulated from within by an insert 1S

Zone B is placed under zone B and has a guide plate 20 for placing on it a container 21 into which a measured amount of product is loaded. The product layer is settled in the container 21. The bottom of the container 21 is made flat with a grid. The upper part of the container 21 is open, i.e. without a lid The container 21 contains a knob 22, with which it moves along the guide plate 20 within zone B or is removed from the apparatus. For extending from the apparatus of the container 21 there is a service hatch 23 with a folding guide. For removing the container 21 from the guide on the handle 22 of the container 21, there is a sling ring 25 for the hydraulic lifter. In the container 21 there are two slots 26 for thermocouple tips 27, which control the internal temperature. By means of choke 28, a heat carrier vapor suction is performed.

The device works as follows.

The housing 1 of the apparatus A of zone A is supplied through the hydraulic controller 7, the amount of which is set at the level indicator 10 with valve adjustment 11. Water enters through the pipe 9 to the evaporator 8, after evaporation of the liquid, the formed vapor flows through the drain pipes 4 to zone B, where it is needed up to direct steam due to heating elements operating in zone B in cassettes 13 with automatic adjustment to the required loading temperature. Acute steam at the expense of the existing fitting 28, through which the forced suction of steam is carried out, penetrates zone B

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thermal processing of the product and the container 21 in it with the granulated product. Acute steam penetrates all layers of the product, since the container 21 does not have a lid, and its bottom is made in the form of a grid so that there is no difficulty in sucking the heat transfer medium to calcine in a steam medium.

The application of the proposed apparatus provides for heat treatment with higher operating temperatures of the coolant due to the absence of direct contact of the heating elements with the granulated material, increasing the service life of the heaters due to the exclusion of direct contact with the granulated material, as well as improving the quality of the heat treatment due to uniform heating of the granulated material throughout volume.

Claims (1)

Invention Formula A hydrothermal processing unit for predominantly granular materials comprising a heat treatment chamber, a coolant supply and removal chamber, a container with granulated material, heating elements, connections for supplying and discharging process media, characterized in that, in order to expand technological capabilities and operational reliability, the coolant feed chamber communicated with the heat treatment chamber over the coolant, the heating elements are placed between the chambers in front of the container with granules In this case, the coolant supply chamber is equipped with a hydraulic regulator with a hydraulic lock attached to the coolant supply nozzle.