RU221284U1 - THIN-LAYER SETTING BLOCK - Google Patents

Abstract

The utility model relates to equipment for separating emulsions and suspensions and can be used in chemical, petrochemical and other industries.

A thin-layer settling block is proposed, including several rows of alternating gutters with inclined walls and tops facing up and down; at the tops of the gutters there are channels located in a vertical plane in the direction transverse to the axis of the gutters, connecting the tops of the gutters with the tops of the gutters of the next layer, at the end channels between the walls of the channels and the walls of the gutters of the next layer there are gaps, the gutters are assembled from inclined plates with vertically bent edges, which form the walls of the channel, in which, according to the utility model, plates with vertically bent edges are located inside a spatial frame, including rows of vertical posts with lateral projections , while the lower edge of the inclined plates rests against the side projections.

The technical result is to increase reliability by ensuring structural rigidity and reducing the number of connections.

Description

The utility model relates to equipment for separating emulsions and suspensions and can be used in chemical, petrochemical and other industries.

A thin-layer settling block is known, containing a set of longitudinal vertical plates and inclined shelves, the shelves are attached to one of the inclined plates and there is a gap between the inclined shelf and the adjacent vertical plate. (RF Patent No. 1826198, Thin-layer sedimentation unit, published July 20, 1996, Bulletin No. 20.)

Thin-layer sedimentation units are installed in settling tanks of various designs. They make it possible to obtain a large settling area and, accordingly, high productivity in relatively small-sized devices. A low Reynolds number and laminar motion at a higher flow rate are ensured. The shelves prevent the liquid from mixing in the vertical direction. These features improve settling conditions.

The closest analogue (prototype) is the internal device for thin-layer sedimentation tanks, which is a system of alternating gutters with inclined walls and tops facing up and down; at the tops of the gutters there are channels located in a vertical plane in the direction transverse to the axis of the gutters, connecting the tops of the gutters with the tops of the gutters of the next layer, at the end of the channels there are gaps between the walls of the channels and the walls of the gutters of the next layer, the gutters are assembled from inclined plates with vertically bent edges that form the walls of the channel, the plates are connected to each other by connecting elements that simultaneously provide the required distance between the walls of the channel and act as transverse partitions in the canal. (RF patent for invention No. 2688341, Internal device for thin-layer sedimentation tanks, published May 22, 2019, Bulletin No. 15.)

The design of the considered internal devices for thin-layer sedimentation tanks has a number of disadvantages. The design involves connecting several sheets with edges bent up and down in the factory, and then layer-by-layer installation of internal devices on top of each other inside the sump. To reduce material consumption, it is advisable to use thin sheets. However, in this case the structure loses its rigidity and is easily deformed, which creates problems during installation, operation and repair. Layer-by-layer installation is a labor-intensive operation, and deformation of individual elements significantly complicates the installation process. Permanent connection of thin sheets using connecting elements is possible using resistance welding, soldered and adhesive joints. A large number of connections reduces the reliability of the design. If damaged, the entire internal device will need to be replaced.

The objective of the utility model is to create a new design of a thin-layer sedimentation block with the achievement of the following technical result: increasing reliability by ensuring structural rigidity, reducing the number of connections.

The technical result is achieved by the fact that in a thin-layer settling block, which includes several rows of alternating gutters with inclined walls and tops facing up and down, at the tops of the gutters there are channels located in a vertical plane in the direction transverse to the axis of the gutters, connecting the tops of the gutters with the tops of the gutters of the next layer, at the end of the channels there are gaps between the walls of the channels and the walls of the gutters of the next layer, the gutters are assembled from inclined plates with vertically bent edges that form the walls of the channel, according to the utility model, the plates with vertically bent edges are located inside a spatial frame that includes rows of vertical posts with side projections, with the lower edge of the inclined plates resting on the side projections.

In the proposed thin-layer sedimentation unit, the same flow structure is implemented as in the device adopted as the prototype. The separated suspension or emulsion moves along the troughs. The settled particles fall or rise due to the difference in density, reach the surface of the inclined plates, then move along the plates and enter vertical channels through the gaps. Next, the particles reach the bottom or top of the thin-layer sedimentation block through vertical channels.

In the proposed thin-layer sedimentation block, rows of vertical posts with side projections perform the same role as the connecting elements, that is, they provide support and correct placement of inclined plates with vertically bent edges, and also provide the required distance between the walls of the channel and act as transverse partitions in the channel . The fact that the vertical posts with side projections are part of the space frame provides rigidity to the structure. Inclined plates with vertically bent edges, the lower edge rests against the side projections of the vertical posts, and the upper edge rests on the posts of the adjacent row. That is, the inclined plates between the posts are located freely, which sharply reduces the number of connections and increases the reliability of the structure. If the inclined plates become damaged, for example due to mechanical stress or corrosion, they can be easily replaced. The thin-layer settling unit can be completely manufactured in a factory. An option is possible in which the space frame is assembled inside the sump, and then the inclined sheets are mounted inside the frame.

In fig. Figure 1 shows a thin-layer sedimentation block in cross section.

In fig. Figure 2 shows a variant of the arrangement of elements of the spatial frame of the thin-layer settling unit.

The thin-layer settling block includes a spatial frame, which consists of transverse beams 1, vertical posts 2 and longitudinal beams 5. Vertical posts 2 are arranged in a row along the thin-layer settling block. The vertical posts 2 have side projections 3. The plates 4, with vertically bent edges, rest against the side projections 3 with their lower edges. The upper bent part of the plates 4 rests on the stand of the adjacent row. On this row of racks there are no side projections 3. Plates 4, with vertically bent edges, form several rows of alternating gutters with inclined walls and tops facing up and down; at the tops of the gutters there are channels located in a vertical plane in the direction transverse to the axis of the gutters, connecting the tops of the gutters with the tops of the gutters of the next layer. The distances between the side projections 3 are selected so that there are gaps 6 between the walls of the channels and the walls of the gutters of the next layer. Rows of vertical posts 2 with side projections provide support and the correct location of the inclined plates 4 with vertically bent edges, and also provide the required distance between the walls of the channel and act as transverse partitions in the canal.

A spatial frame consisting of transverse beams 1, vertical posts 2 and longitudinal beams 5 gives the structure rigidity. The space frame can be made integral or collapsible. The inclined plates 4 between the posts 2 are located freely, which sharply reduces the number of connections and increases the reliability of the structure. To hold the inclined plates 4 in a given position, additional devices or detachable connections can be used, which are not mentioned in the formula of the utility model and are not shown in the figures. If the inclined plates 4 are damaged, for example due to mechanical stress or corrosion, they can be easily replaced.

Thus, the rigidity of the structure of the thin-layer sedimentation block is ensured, the number of connections is reduced, and the reliability and maintainability of the block is increased.

Claims (1)

Thin-layer sedimentation unit, including rows of alternating gutters with inclined walls and tops facing up and down, assembled from inclined plates with vertically bent edges, and the bent edges of the plates are located with a gap and form the walls of vertical channels, at the end of the channels between the walls of the channels and the walls of the gutters the next layer has gaps, characterized in that the plates with vertically bent edges are located inside a spatial frame, including rows of vertical posts with side projections, while the lower edge of the inclined plates abuts the side projections.

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