RU2046669C1 - Device for liquid cleaning - Google Patents

Abstract

FIELD: separation of suspensions. SUBSTANCE: body with feeding and drain branch pipes accommodates modules. They consist of several parallel-arranged plates 8,9,10 and 11. The plates are connected by side walls. The upper edges of plates 8 and 11 of each module are connected with inclined plates 13 and make up a collector of petroleum products in the form of a prism. The collector space communicates with the atmosphere through hole 14. The upper edges of plates 10 and 11 are connected by a crosspiece and make up a duct. The duct space a connected with the atmosphere through pipe 16. The upper edge of plate 9 of each module is located below the level of liquid being cleaned. The lower edges of plates 9 and 11 are connected by a crosspiece below the lower edge of plate 10. A hole is made in the side wall to let out the cleaned liquid. Triangular holes 19 are made in the collector side walls for smooth discharge of petroleum products. Through these holes petroleum products get into the collector for their removal. Cleaned liquid from modules through holes 18 located between plates 10 and 1 of each module is gathered in the collector. EFFECT: improved design. 4 cl, 3 dwg

Description

 The invention relates to a device for separating suspensions used in the mining industry, and can be used in other sectors of the economy, for example for wastewater treatment of industrial enterprises from solid particles and oil products.

 Known devices for cleaning liquids from solid particles and oil products [1, 2] containing a rectangular body with collectors for inputting the initial liquid, conclusions of solid particles, purified liquid and oil products, a collection of solid particles made in the form of a prism and attached to the body, classification chambers, separated inside the partitions to the canals.

 A disadvantage of the known devices for cleaning liquids from solid particles and oil products is the low separation efficiency.

 Closest to the proposed (prototype) is a device for the separation of granular materials and clarification of recycled water [3] including a housing with dividing pockets, different-sized classification chambers with inclined plates installed in them and pipes for inputting the starting material and outputting finished separation products.

 The disadvantages of the known device are the low efficiency of the process of separation of solid particles and the inability to separate petroleum products, the supply of additional clean water, which reduces the productivity of the device.

 The aim of the invention is to increase the efficiency of purification of liquids from petroleum products and solid particles, the exclusion of the supply of additional clean water to the process.

 The goal is achieved by the fact that the plates are combined into additional modules by means of lateral additional external plates and jumpers, while the upper edges of the first, counting from the drain pipe, and the last plates in each module are associated with additional inclined plates, forming with the side walls of the module open from above and communicated with atmospheres of oil product collectors with an opening for output of oil products, the upper edges of the last two plates and the lower edges of the second and last plates in each module are connected to the side with the jumper walls of the module, the lower edge of each third plate is located above the jumper, and the connecting upper edges of the jumper plates are located under the oil reservoirs above the upper edges of the second in each plate module, the cavities located under these jumpers are connected to the atmosphere, and in the side wall of each module below the level of the liquid to be cleaned in the device case, an opening is made between the third and last plates for the outlet of the liquid to be cleaned.

 The device is equipped with manifolds of oil products and purified liquid, communicated with the side walls of the modules through the hole for the output of the respective products.

 The hole for the withdrawal of petroleum products is made in the form of an isosceles triangle located with its top down.

 The modules in the housing are located at a distance from each other.

 The present invention has several significant distinguishing features: simultaneous purification of liquids from petroleum products and particulate matter is possible; the presence of a collection of petroleum products in the form of a prism, which contributes to the rapid growth of the height of the layer of petroleum products accumulating in the collector, which improves the efficiency of the separation process; the internal cavity of the collection of petroleum products is in communication with the atmosphere, which ensures stable mixing of the fluid in the channels of the module; by means of a drain and feeding branch pipe, a feeding device made in the form of a rectangular gutter and located along the housing, uniform supply of all modules is provided, constant filling and a constant liquid level in the housing is maintained.

 Figure 1 shows the proposed device, a longitudinal section; figure 2 section ABCD in figure 1; figure 3 module (increased).

 A device for cleaning liquids from solid particles and petroleum products (figure 1, 2) consists of a housing 1 with a drain pipe 2, modules 3, consisting of several parallel plates, a supply pipe 4 and a pipe 5 output solid particles, collector 6 for collecting and remove purified liquid and a collector 7 for collecting and removing petroleum products. In the housing 1 of the device can be installed any number of modules depending on the volume of the cleaned liquid.

 Module 3 (figure 3) consists of parallel plates 8, 9, 10 and 11, interconnected by side walls 12 (figure 1, 2). The upper edges of the plates 8 and 11 of each module are connected to the inclined plates 13, which, with the side walls 12 (Fig. 1), form a collection of oil products of the shape of a prism. The internal cavity of the collection of petroleum products through the hole 14 is in communication with the atmosphere. The upper edges of the plates 10 and 11 are connected by a jumper 15 and form a channel, the inner cavity of which is connected to the atmosphere by means of a tube 16. The upper edge of the plate 9 of each module is located below the level of the liquid to be cleaned in the device body. The lower edges of the plates 9 and 11 are connected by a jumper 17. The lower edge of the plate 10 is located above the lower edges of the plates 9 and 11. Thus, the channels formed by the plates 9 and 11 are connected in series. In the side wall 12 of the channel formed by the plates 10 and 11, there is an opening 18 for withdrawing the purified liquid. For a smooth output of oil products from each module in the side walls of the collection of oil products there is an opening 19 of the shape of an isosceles triangle located apex down. Additional channels 20, formed by the plate 11 in front of the standing module and the plate 8 of the subsequent module, provide fluid to the first channel of each module.

 The device operates as follows.

 The initial liquid containing oil products and solid particles through the supply pipe 4 is supplied in excess to the device body 1, and as much liquid is supplied to the device body as all the modules inside the case can pass, while the liquid level in the case must be constant ( 1), which is achieved by the self-discharge of excess fluid through the drain pipe 2. Since the upper edges of the plates 9 located inside the modules 3 are located below the liquid level in the housing, the liquid, coming up the first to and changing the direction of movement, it will move down the second channel, then again up the third channel. The movement of fluid through the channels will always be carried out, if only the fluid level in the device casing is held at a predetermined height. The remaining modules work similarly. Moving sequentially through the channels, the liquid is freed from solid grains and oil products. In the first channel, under the influence of gravity, there is a separation of solid particles from the liquid, which are accumulated in the lower part of the device, from where through the nozzles 5 output of solid particles are removed from the device.

 Since the density of petroleum products is less than the density of water, the petroleum products in the channels of the modules float up and are discharged into a collection of petroleum products by a fluid stream, and the purified liquid is removed through outlet holes 18. An increase in the petroleum product layer occurs in the collection of petroleum products. An increase in the collection of petroleum products tapering upward also contributes to its increase. The layer of petroleum products thus enlarged in the reservoir allows the withdrawal of petroleum products at a point located above the level of the liquid under the petroleum layer, eliminating its ingress into the petroleum product. To ensure uniform output of petroleum products from the collection and increase the accuracy of separation, the output is made through openings with a variable cross-section, made in the form of an isosceles triangle located with the top down (Fig.3).

 With an increase in the layer of oil products in the collection, the area of the triangular hole through which oil products are discharged will increase.

 When using the invention, the consumption of pure water is excluded, the efficiency of the process of separating oil products and solid particles from liquid is increased, and the content of film-like oil products in purified water is reduced to 1-1.5 mg / L.

Claims (4)

 1. DEVICE FOR CLEANING LIQUIDS, comprising a housing with inclined plates arranged parallel to each other, a drain and a supply pipe for outputting solid particles, characterized in that the plates are combined into additional modules by means of lateral additional external plates and jumpers, the upper edges of the first, counting from the drain pipe and the last plate in each module are paired with additional inclined plates forming oil reservoirs open on top and connected to the atmosphere with the side walls of the module products with a hole for the output of oil products, the upper edges of the last two plates and the lower edges of the second and last plates in each module are connected by jumpers connected to the side walls of the module, the lower edge of each third plate is located above the jumper, and the connecting upper edges of the jumper plates are located above the oil collectors above the upper edges of the second in each module of the plates, the cavities located under these jumpers are connected to the atmosphere, and in the side wall of each module below the level of device aboard the fluid in the housing means between the third and last plates, an opening for outputting the liquid being purified.  2. The device according to p. 1, characterized in that it is equipped with manifolds of oil products and purified liquid, in communication with the side walls of the modules through openings for outputting the corresponding products.  3. The device according to p. 1, characterized in that the hole for the withdrawal of petroleum products is made in the form of an isosceles triangle located with its top down.  4. The device according to p. 1, characterized in that the modules in the housing are located at a distance from each other.

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