Precipitation separation device for sewage treatment

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a precipitation separation device for sewage treatment, which comprises a precipitation tank, the interior of the precipitation tank is divided into a precipitation tank and a floating tank through a partition plate, the top of the precipitation tank is communicated with the top of the floating tank, a sewage liquid inlet pipe is arranged on one side of the precipitation tank, and a sewage liquid outlet pipe is arranged on the other side of the floating tank. A clear water discharge pipe is inserted into the top of the floating tank, a floating object filter plate is vertically and slidably connected into the floating tank, and the floating object filter plate is elastically connected with the top surface of the inner wall of the settling tank through a tension spring; in the process that liquid flows to the floating tank, particulate matters descend, and floating objects are located on the surface, so that no particulate impurities exist in overflow liquid passing through the top of the partition plate, and according to the technical scheme, the condition of filtration saturation is very difficult to generate in the continuous processing process of sewage precipitation and separation treatment, so that the maintenance period is greatly prolonged, and the production cost is reduced. And the impurity separation effect can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, and specifically relates to a sedimentation separation device for sewage treatment. BACKGROUND

[0002] There are also particulate impurities in sewage, and the particulate impurities will be affected by gravity and settle down, so that the main flow of the settling process is through liquid static, and the particles are lowered to obtain supernatant to achieve the effect of solid-liquid separation. The advantage of this method is that it is not limited by filter saturation and is suitable for initial treatment of sewage.

[0003] However, the impurities in the sewage are diversified, and in addition to the particulate impurities, there are also floating impurities. When the supernatant is obtained by overflow, the floating matter also enters another area with the supernatant. Therefore, the floating matter needs to be filtered. At this time, the problem of filter saturation is likely to occur, which leads to the need for maintenance and cleaning of the equipment after continuous processing for a period of time, thereby increasing the labor intensity of the technical personnel. INVENTION CONTENTS

[0004] The utility model provides a sedimentation separation device for sewage treatment, which has the characteristics that the sewage sedimentation separation treatment is difficult to produce filter saturation in the continuous processing process, thereby greatly improving the maintenance period and ensuring the separation effect of impurities.

[0005] The utility model provides the following technical scheme: a sedimentation tank is arranged, the sedimentation tank is divided into a sedimentation pool and a floating pool by a partition plate, and the top of the sedimentation pool and the floating pool is communicated;

[0006] One side of the sedimentation pool is provided with a sewage inlet pipe, a clean water discharge pipe is inserted into the top of the floating pool, a floating matter filter plate is vertically and slidably connected in the floating pool, the floating matter filter plate is elastically connected to the inner wall top surface of the sedimentation tank through a tension spring, a pull rope is arranged at the bottom of the floating matter filter plate, and the bottom end of the clean water discharge pipe is located below the floating matter filter plate.

[0007] As a further scheme of the utility model, an impact offset plate is fixedly connected to the inner wall of the sedimentation pool, and the impact offset plate is opposite to the sewage inlet pipe.

[0008] As a further scheme of the utility model, an elevated platform is fixedly connected to the bottom surface of the sedimentation tank, the elevated platform suspends the bottom of the sedimentation tank, a sedimentation blocking cover is detachably connected to the bottom surface of the sedimentation pool, and a floating blocking cover is detachably connected to the bottom surface of the floating pool.

[0009] As a further scheme of the present application, a sliding hole is formed in the middle of the floating filter plate, the sliding hole is in sliding connection with the clean water discharge pipe, and a rubber layer is fixedly connected to the inner wall of the sliding hole.

[0010] As a further scheme of the present application, the inner wall of the floating pool is provided with a Teflon layer, and the side wall of the floating filter plate is fixedly connected with a rubber layer in sliding cooperation with the Teflon layer.

[0011] As a further scheme of the present application, the volume of the sedimentation pool is greater than that of the floating pool.

[0012] The present application has the following advantages:

[0013] The top of the partition plate is not in contact with the inner wall top surface of the sediment tank, at this time, the cavities of the sedimentation pool and the floating pool are communicated, the sewage inlet pipe injects wastewater into the sediment tank through the side surface of the sediment tank, at this time, the particles drop in the process of flowing to the floating pool, the floating matter is located on the surface, so that there is no particle impurity in the overflow liquid passing through the top of the partition plate, and only the floating impurities, at this time, the floating filter plate containing the floating impurities enters the floating pool, and the liquid level rises, so that the liquid level surface in the floating pool is higher than the floating filter plate, and the floating matter initially adhered to the floating filter plate is separated from the floating filter plate and floats above the liquid surface when the liquid level is higher than the floating filter plate, and the filtration of the floating filter plate is always in a non-saturated state, and in the process, the floating filter plate can play a filtering role of small particles. The bottom end of the clean water discharge pipe is located below the floating filter plate, at this time, the liquid extracted through the clean water discharge pipe is filtered liquid, and the impurities are deposited on the bottom surface of the sediment tank and the liquid surface of the floating pool. The technical scheme makes it difficult to produce filter saturation in the continuous processing process of sewage sedimentation and separation treatment, thereby greatly improving the maintenance period and ensuring the separation effect of impurities.

[0014] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a cross-sectional structure schematic view of the present application;

[0016] Figure 2 It is a use state schematic view of the present application;

[0017] Figure 3 It is a sediment tank cleaning schematic view in the present application;

[0018] Figure 4 It is a floating pool cleaning schematic view in the present application;

[0019] In the figure: 1, sediment tank; 11, sediment tank; 111, sediment blocking cover; 12, floating tank; 121, floating blocking cover; 13, partition plate; 14, impact offset plate; 15, overhead platform; 2, sewage inlet pipe; 3, clean water outlet pipe; 4, floating filter plate; 41, pull rope; 42, pull spring. DETAILED DESCRIPTION

[0020] Please refer to Figures 1-4 The utility model provides the following technical scheme: including sediment tank 1, sediment tank 1 is divided into sediment tank 11 and floating tank 12 two cavities through partition plate 13, and the top of sediment tank 11, floating tank 12 is communicated;

[0021] The side of sediment tank 11 is provided with sewage inlet pipe 2, and the top of floating tank 12 is inserted with clean water outlet pipe 3, and floating filter plate 4 is vertically slidably connected in floating tank 12, floating filter plate 4 is elastically connected with the top surface of the inner wall of sediment tank 1 through pull spring 42, the bottom of floating filter plate 4 is provided with pull rope 41, and the bottom end of clean water outlet pipe 3 is below floating filter plate 4, and in the working state of clean water outlet pipe 3, the liquid level inside floating tank 12 is always higher than the upper end surface of floating filter plate 4.

[0022] In the embodiment: first, the inside of sediment tank 1 is closed cavity, and the partition plate 13 is arranged below sediment tank 1, the top of partition plate 13 is not in contact with the top surface of the inner wall of sediment tank 1, at this time, the cavities of sediment tank 11 and floating tank 12 are communicated, sewage inlet pipe 2 injects waste water into sediment tank 11 through the side of sediment tank 11, at this time, in the process that liquid flows to floating tank 12, particulate matter drops, and floating material is located on the surface, so that there is no particulate impurity in the overflow liquid passing through the top of partition plate 13, and it is all floating impurities, at this time, floating filter plate 4 containing floating impurities enters floating tank 12, and as the liquid level rises, the liquid level surface in floating tank 12 is higher than floating filter plate 4, and the floating material initially adhered to floating filter plate 4 separates from floating filter plate 4 and floats above the liquid surface when the liquid level is higher than floating filter plate 4, and the filtration of floating filter plate 4 is always in the unsaturated state, and in the process, floating filter plate 4 can play the filtering effect of micro particles. The bottom end of clean water outlet pipe 3 is below floating filter plate 4, at this time, the liquid extracted through clean water outlet pipe 3 is filtered liquid, and the impurities are deposited on the bottom surface of sediment tank 11 and the liquid surface of floating tank 12. The technical scheme makes it difficult to produce filtering saturation in the continuous processing process of sewage sedimentation and separation treatment, thereby greatly improving the maintenance period, and the separation effect of impurities can be guaranteed.

[0023] In the maintenance cleaning process, only the floating sealing cover 121 is opened, at this time the liquid in the floating pool 12 is discharged through the floating sealing cover 121, the floating impurities are located on the surface of the floating filter plate 4, the floating filter plate 4 is pulled out from the bottom of the floating pool 12 by pulling the pull rope 41, the floating filter plate 4 is cleaned, the pull rope 41 is loosened by the reset action of the pull spring 42, and the floating filter plate 4 can be reset, at this time the floating sealing cover 121 is closed, and the operation can be repeated.

[0024] The inner wall of the sedimentation tank 11 is fixedly connected with the impact absorbing plate 14, and the impact absorbing plate 14 faces the sewage inlet pipe 2; when the sewage inlet pipe 2 injects sewage, in order to avoid the problem that the particles directly reach the floating pool 12, the floating filter plate 4 is arranged, the kinetic energy of the waste water contacts with the impact absorbing plate 14, the liquid is quickly dispersed, the kinetic energy is dispersed, and at the same time is affected by gravity, the dispersed particles vertically descend, so that the particles are precipitated in the sedimentation tank 11, and the problem that the particles with kinetic energy are quickly introduced into the floating pool 12 due to the influence of kinetic energy does not occur.

[0025] The bottom surface of the sedimentation tank 1 is fixedly connected with the elevated platform 15, the elevated platform 15 suspends the bottom of the sedimentation tank 1, the bottom surface of the sedimentation tank 11 is detachably connected with the sediment sealing cover 111, and the bottom surface of the floating pool 12 is detachably connected with the floating sealing cover 121; after the height of the sedimentation tank 1 is suspended by the elevated platform 15, the bottom is exposed, at this time when the sedimentation tank 11 is cleaned, since the impurities are precipitated below the sedimentation tank 11, the sludge can be taken out after the sediment sealing cover 111 is detached, and before use, a tool is needed to extract the waste liquid in the sedimentation tank 11. An auxiliary hole can be arranged above the sedimentation tank 1 for sucking the liquid in the sedimentation tank 11.

[0026] The middle part of the floating filter plate 4 is provided with a sliding hole, the sliding hole is slidably connected with the clean water discharge pipe 3, and the inner wall of the sliding hole is fixedly connected with a rubber layer; the rubber layer can increase the sealing property of the sliding cooperation between the floating filter plate 4 and the clean water discharge pipe 3, and the outer wall of the clean water discharge pipe 3 can also be provided with a Teflon film. The non-stick property of the Teflon layer can reduce the adhesion of impurities.

[0027] The inner wall side of the floating pool 12 has a Teflon layer, and the side wall of the floating filter plate 4 is fixedly connected with a rubber layer in sliding cooperation with the Teflon layer; in order to avoid the particles from entering the area below the floating filter plate 4 and improve the convenience of cleaning, the Teflon layer can well avoid the adhesion problem of the particle impurities.

[0028] The volume of the sedimentation tank 11 is greater than that of the floating pool 12; the purpose is to increase the travel of the particles to the floating pool 12, so that the particles have descended to the bottom of the sedimentation tank 11 when reaching the floating pool 12.

Claims

1. A sedimentation separation device for sewage treatment, comprising a sedimentation tank (1), characterized in that: The precipitation tank (1) is divided into a precipitation pool (11) and a floating pool (12) by a partition plate (13), and the top of the precipitation pool (11) and the top of the floating pool (12) are communicated; One side of the precipitation pool (11) is provided with a sewage inlet pipe (2), the top of the floating pool (12) is inserted with a clean water outlet pipe (3), a floating object filter plate (4) is vertically and slidingly connected in the floating pool (12), the floating object filter plate (4) is elastically connected with the inner wall top surface of the precipitation tank (1) through a tension spring (42), the bottom of the floating object filter plate (4) is provided with a pull rope (41), the bottom end of the clean water outlet pipe (3) is below the floating object filter plate (4), and the liquid level in the floating pool (12) is always higher than the upper end surface of the floating object filter plate (4) in the working state of the clean water outlet pipe (3).

2. The device according to claim 1, characterized in that: The inner wall of the precipitation pool (11) is fixedly connected with an impact cancellation plate (14), and the impact cancellation plate (14) faces the sewage inlet pipe (2).

3. The device according to claim 1, characterized in that: The bottom surface of the precipitation tank (1) is fixedly connected with an elevated platform (15), the elevated platform (15) suspends the bottom of the precipitation tank (1), the bottom surface of the precipitation pool (11) is detachably connected with a precipitation blocking cover (111), and the bottom surface of the floating pool (12) is detachably connected with a floating blocking cover (121).

4. The device according to claim 1, characterized in that: A sliding hole is formed in the middle of the floating object filter plate (4), the sliding hole is slidingly connected with the clean water outlet pipe (3), and the inner wall of the sliding hole is fixedly connected with a rubber layer.

5. The device according to claim 1, characterized in that: The inner wall side of the floating pool (12) has a Teflon layer, and the side wall of the floating object filter plate (4) is fixedly connected with a rubber layer in sliding cooperation with the Teflon layer.

6. The device according to claim 1, wherein: The volume of the precipitation pool (11) is greater than that of the floating pool (12).

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