RU160040U1 - CONTAINER FOR ION EXCHANGE RESINS - Google Patents

Abstract

Container-collection for ion-exchange resins, which includes a housing, a filter element, a pipe for feeding a charge of ion-exchange resins, a pipe for removing purified water, characterized in that the filter element is located in the upper part of the housing, a removable bottom is installed in the lower part of the housing, hermetically attached to the casing with fasteners from the outside, a disposable removable bottom adjacent to the removable bottom inside the casing and attached to the casing; a nozzle for supplying compressed air to the upper part of the casing and assembly is also installed renage free water, comprising an annular pipe, at the bottom of the housing defined by the perimeter of the filter cap, and a pipe for discharging water drained, leaving the outside.

Description

The device relates to devices of nuclear engineering and can be used for temporary storage of spent ion-exchange resins from ion-exchange filters of a nuclear power plant and their transfer to disposal.

Known high-pressure ion-exchange filter (Ship nuclear power plants: Textbook. [Text] / V.A. Kuznetsov - P .: Sudostroenie, 1989. - 256 pp., Ill., P. 75), which includes a housing, a filter element with a charge of ion-exchange resins, a pipe for supplying a charge of ion-exchange resins in the form of a pulp, a pipe for supplying filtered water and a pipe for draining purified water.

The disadvantage of the prototype is the difficulty of temporary storage in it of the spent mixture of ion-exchange resins and its safe transfer to burial due to the inability to get rid of free water in the filter and the possibility of unloading the charge of spent ion-exchange resins only in a hydrodynamic way, in the form of pulp.

The essence of the claimed technical solution lies in the fact that in the known high-pressure ion-exchange filter, which includes a housing, a filter element, a pipe for supplying a charge of ion-exchange resins, a pipe for removing purified water, a filter element is located in the upper part of the housing, in the lower part of the housing a removable bottom, hermetically attached to the housing by fasteners from the outside, a disposable removable bottom adjacent to the removable bottom and attached to the housing inside the housing, a pipe for compressed air to the upper part of the casing and the free water drainage unit, which includes an annular pipe located in the lower part of the casing with filter caps installed around the perimeter and a pipe for draining the drained water that goes out.

Thus, the claimed technical solution differs from the prototype in that the filter element is located in the upper part of the housing, a removable bottom is installed in the lower part of the housing, hermetically attached to the housing by fasteners outside, a disposable removable bottom adjacent to the removable bottom inside the housing and attached to the housing also installed a pipe for supplying compressed air to the upper part of the housing and a free water drainage unit, including an annular pipe located in the lower part of the housing, with installed nnym perimeter filter cap tube and drained to remove the water that goes outwards.

A comparative analysis of the claimed utility model with other technical solutions showed that a removable bottom attached to the device body by fasteners from the outside is widely known in the art. It is also known to use a pipe with filter caps located at the bottom of the device to drain water. However, only the combined use of a filter element located in the upper part of the housing, a removable bottom, hermetically attached to the housing by fasteners on the outside, in the lower part of the housing, a disposable removable bottom adjacent to the removable bottom and attached to the housing inside the housing, as well as a supply pipe compressed air to the upper part of the casing and the free water drainage unit, which includes an annular pipe located in the lower part of the casing, with filter caps installed around the perimeter and tr a boo for draining the drained water outward allows safe handling of the charge of spent ion-exchange resins, including filling it with a charge of spent ion-exchange resins, its temporary storage in a collection container and safe unloading of the charge of spent ion-exchange resins into a transfer container for transfer to burial place.

The filter element located in the upper part of the housing cleans the main part of the water supplied with the pulp of the charge of the spent ion-exchange resins before water is removed through the pipe to drain the purified water. An annular pipe located in the lower part of the casing with filter caps installed around the perimeter drains and cleans the free water remaining in the collection container after filling it with a mixture of spent ion-exchange resins, the pipe for draining the drained water exiting outward drains the drained water. The removable bottom, hermetically attached to the body by fasteners from the outside, allows to maintain tightness when filling the collection container with the charge of spent ion-exchange resins and temporary storage of the collection container. The disposable removable bottom adjacent to the removable bottom inside the housing and attached to the housing maintains its integrity by transferring the load to the removable bottom to which it is attached when filling the collection container with the charge of spent ion-exchange resins and temporary storage of the collection container.

The collection container with the thus dried charge of spent ion-exchange resins can be temporarily stored until it is sent for processing or disposal.

After removing the removable bottom, hermetically attached to the body by fasteners from the outside in the lower part of the body, the collection container can be attached to the neck of the transhipment container for radioactive waste. A disposable removable bottom attached to the housing withstands the static load from the charge of spent ion-exchange resins loaded into the collection container. A nozzle for supplying compressed air provides the ability to supply compressed air to the upper part of the body, under the pressure of which the disposable removable bottom and the charge of spent ion-exchange resins loaded in the collection container will be removed into the transfer container for radioactive waste.

In FIG. 1 shows a container container for ion exchange resins, a General view.

In FIG. 2 shows a free water drainage unit, top view.

The inventive device includes a housing 1 a filter element 2, a pipe for supplying a charge of ion-exchange resins 3, a pipe for draining purified water 4, a removable bottom 5, hermetically attached to the housing by fasteners 6, a disposable removable bottom 7 adjacent to the removable bottom inside the housing 1 5, a pipe for supplying compressed air 8 and a free water drainage unit, including an annular pipe 9 with filter caps 10 installed around the perimeter, and a pipe for draining the drained water 11.

The inventive device operates as follows. An empty container-collector through the pipe for feeding the charge of ion-exchange resins 3 is filled with a mixture of spent ion-exchange resins in the form of a pulp in a hydrodynamic way. In this case, the bulk of the water from the pulp of the charge of the spent ion-exchange resins is cleaned on the filter element 2 and is discharged through the pipe to drain the purified water 4. After filling the collection container with the charge of the spent ion-exchange resins, the remaining free water in it, falling under the action of gravity into the lower part of the container collector, filtered through filter caps 10 mounted on the annular pipe 9, and discharged through the pipe to drain the drained water 11.

The collection container filled with the thus dried charge of spent ion-exchange resins is transferred to temporary storage pending the charge of the charge of spent ion-exchange resins into a transfer container.

After preparation of the transfer container, the removable bottom 5 is removed from the collection container, and the collection container without the removable bottom 5 is mounted on the open transfer container so that the disposable bottom 7 rests on the neck of the transfer container.

After that, through the pipe for supplying compressed air 8, compressed air is supplied to the container. Under compressed air pressure, the disposable bottom plate 7 is removed and, together with the charge of spent ion-exchange resins, is discharged into a transfer container.

An empty collection container is dismantled from the transfer container, the transfer container is sealed and transferred for burial. After washing and decontamination, a new disposable bottom plate 7 is installed in the collection container, a removable bottom 5 is mounted on the housing 1 using fasteners 6, and the collection container is returned to its original state.

The inventive container-collector for ion-exchange resins makes it possible to safely handle a charge of spent ion-exchange resins, including filling it with a mixture of spent ion-exchange resins, temporarily storing it in a container-collector and safely unloading the charge of spent ion-exchange resins into a transfer container for transfer to a burial container.

Claims (1)

Container-collection for ion-exchange resins, which includes a housing, a filter element, a pipe for feeding a charge of ion-exchange resins, a pipe for removing purified water, characterized in that the filter element is located in the upper part of the housing, a removable bottom is installed in the lower part of the housing, hermetically attached to the casing with fasteners from the outside, a disposable removable bottom adjacent to the removable bottom inside the casing and attached to the casing; a nozzle for supplying compressed air to the upper part of the casing and assembly is also installed renage free water, comprising an annular pipe, at the bottom of the housing defined by the perimeter of the filter cap, and a pipe for discharging water drained, leaving the outside.

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