SU971416A1 - Filtering unit for purifying gas and liquid - Google Patents

Description

The invention relates to a device for cleaning gases and liquids from mechanical impurities and relates to the design of a ceramic filter unit that can be used to clean gas streams, for example, in the production of nitric acid.

Known filter unit for the purification of gases and liquids, comprising a housing and filter elements

The drawbacks of this device are the difficulty of mounting and dismounting, the difficulty of reducing, leading to the leakage of the raw gas and the reduction of the efficiency of the technological process.

Separate filtering elements require individual fixing them on a tube plate or other supporting surfaces, or the design of the filtering element itself needs to be changed, which leads to additional difficulties in their manufacture and costs. When attaching individual known filter elements, separate flanges, support rings, or other devices are installed that are difficult to assemble during mass production of filters and then during installation.

The aim of the invention is to increase the degree of purification by eliminating the leakage of the crude stream and simplifying installation and dismantling.

The goal is achieved by the fact that in the well-known filtering unit, which includes the frame and the filter kzlie elements, the frame is made in the form of interconnected edges

10 rigidity of the mounting grids, in the slots of which the ends of the filter elements are reinforced by means of a binder. The frame is made with a support flange, liquid glass is used as a connecting substance.

Figure 1 shows the filter unit, front view; figure 2 is the same, side view.

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Filtering elements 3 in the form of parallelepipeds with a cross section of 5252 mm and a length of about 400 mm are inserted into the installation raster 1 and 2. At the bottom, the filtering element rests on the fixing support grid 4. The mounting grids on the outside around the perimeter are connected by horizontal connecting strips 5, which, in turn, are connected at the corners of the block with vertical stiffening ribs 6. The mounting flange 7 to install the unit on the support surface. When installed on the support surface under the support flapoc., A soft gasket will be released, which will be compacted by the weight of the filter unit itself. Y; ganovach: the lattice are located not e ;; l about l .- :. {about n i zhe t opi.i and f and l of the working elemen-ga, ri by means of the connecting substance 8, siiinpuMep liquid glass, filter - .; crepe ac elements in peifiOTOK sockets „UFGRO is working as follows oFvi. 1.о1; И1; (gas flow under the gas surface of the filtering unit. 11 | ;; oho,. (Filter elements: i / a3o} ibi ccjTcjK with its pressure tjOJMririn compresses the filter;) secondary block ;; HP. reference surface. H. IMM.: not, the filtering unit is complete, 1s the degree of purification of is-Kogts gas is eliminated by eliminating the prospecting of black gas. For example, for amm (for example, air mixture B) One way of nitric acid is a dap.lonium of 7.3 atm. They use an FpltHr-apia apparatus, where it is installed bo.g; its .1000 filter elements,: Which; Ki.ieiJHT individually at iioH .surface. The short-circuit due to the breakthrough of ammonia cone ners, i.e., conversion to OKHCJ of nitrogen, is reduced, in turn, r; psd to a decrease in production of cyst; spines. The use of the proposed filtering unit allows to increase the power to the power in the AI of the AI ammi aka to 1, 5 - 2, .O%, that

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Claims (3)

ff 3 leads to a saving of 3.0-3.5 kg / ton of nitric acid. In addition, the time consumption for installation and dismantling of filter elements is significantly reduced, which, in turn, reduces the time simply. Implementing a filter unit in nitric acid production units at a pressure of 7.3 atm will allow sanomonit in the nitrogen industry for the entire effective capacity of 1.01 , 5 million rubles a year. Claim 1. Filtration unit for gas and liquid purification, including Kapicac and filtering elements, characterized in that, in order to increase the degree of purification by eliminating leakage, uncleaned flow and simplification of installation and decontamination are made in the form of interconnected stiffener mounting grids, in the Nests of which the ends of the filter elements are reinforced by means of a binder. 2. The filtering unit according to claim 1, which is different in that the frame is made with a supporting flange. 3. The filtering unit according to Claims 1 and 2, characterized in that liquid glass is used as a binder. Sources of information taken into account in the examination 1, USSR Copyright Certificate If 691159 USSR, cl. On 01 D 39/14, publ. 1977 (prototype).