A composite material sewage clarifier

Abstract

The utility model relates to water treatment equipment technical field especially is related to a kind of composite material sewage clarifier, including tank body, located tank body top surface two sides respectively set raw water inlet and flocculant dosing port, tank body upper portion is provided with water outlet, tank body center is provided with flow guide pipe, the upper and lower ends of flow guide pipe are respectively provided with the flow guide plate of inverted cone and the reflux plate of normal cone, flow guide plate upper edge and reflux plate lower edge are connected with tank body respectively, the inner cavity of flow guide pipe is provided with spiral flow guide piece in upper portion, for improving the mixing efficiency of raw water and flocculant;The sewage clarifier, flocculation effect is good, sedimentation effect is good, and the water quality of effluent is high.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a composite material wastewater clarifier. Background Technology

[0002] In the water treatment process, water often contains tiny suspended solids and colloidal substances. If these substances are not removed, they will affect the subsequent treatment process, such as reducing the filtration effect and shortening the life of the filter media. Flocculation clarifiers are a common water treatment device, mainly used to remove suspended solids, floating oil and colloidal substances from water. The principle is to use chemical agents or physical and mechanical actions to make suspended solids coagulate into large particles, which are then settled and discharged at the bottom of the clarifier.

[0003] For example, Chinese utility model patent CN210313665U discloses a clarifier for wastewater treatment, including a shell. A vertical stirring shaft is located in the center of the shell's interior, with spiral stirring blades on the shaft. The upper end of the stirring shaft extends out of the shell and is connected to a motor. A flocculation cylinder with an open lower end is located outside the stirring shaft inside the shell. The top of the flocculation cylinder is connected to the inner top wall of the shell. Several spiral stirring blades are located on the inner side wall of the flocculation cylinder. A sludge discharge pipe is located in the center of the bottom of the shell, and a sludge discharge pump is installed on the sludge discharge pipe. This wastewater treatment clarifier is equipped with... The spiral stirring blades enable impurities in the wastewater to mix rapidly with the added flocculant to form flocs, which then aggregate towards the bottom of the flocculation chamber. The wastewater then enters the interior of the shell from the bottom of the flocculation cylinder, settles again through the sedimentation riser, and is discharged through the outlet pipe at the overflow weir. However, this clarifier uses a motor connected to the stirring shaft, and the shearing force of the spiral stirring blades on the stirring shaft will destroy the flocs already formed in the water, resulting in a decrease in flocculation effect. This will also cause the flocs that have settled to the bottom to resuspend and tumble upwards, thereby mixing the clear water and sludge and reducing the quality of the clarifier's effluent.

[0004] Therefore, this application provides a composite material wastewater clarifier to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a composite material wastewater clarifier that solves the problems in the prior art, such as the reduction of flocculation effect caused by motor stirring, the re-suspension and upward rolling of flocs that have settled to the bottom, and the mixing of clear water and sludge, which reduces the quality of the effluent from the clarifier.

[0006] To solve the above-mentioned technical problems, this utility model provides a composite material wastewater clarifier, including a tank body. A raw water inlet and a flocculant dosing port are respectively provided on both sides of the top surface of the tank body. A water outlet is provided at the top of the tank body. A guide pipe is provided at the center of the tank body. An inverted conical guide plate and an upright conical return plate are respectively provided at the upper and lower ends of the guide pipe. The upper edge of the guide plate and the lower edge of the return plate are respectively connected to the tank body. A spiral guide component is provided at the upper part of the inner cavity of the guide pipe to improve the mixing efficiency of raw water and flocculant.

[0007] A further improvement of this utility model is that the guide plate and the inner wall of the top of the tank form a mixing zone.

[0008] A further improvement of this utility model is that the tank body, guide plate, guide pipe, spiral guide component and return plate are all made of fiberglass.

[0009] A further improvement of this utility model is that: the inner wall of the tank, the outer wall of the guide pipe, the bottom surface of the guide plate, and the upper surface of the return plate together form a water outlet channel, and at least one water outlet is provided on the upper part of the tank corresponding to the water outlet channel for drawing water out of the water outlet channel.

[0010] A further improvement to this utility model is that a cleaning manhole is provided on the tank body corresponding to the lower part of the water outlet channel.

[0011] A further improvement of this utility model is that several guide holes are evenly arranged on the upper part of the reflux plate.

[0012] A further improvement of this utility model is that the bottom inner wall of the tank cavity and the bottom surface of the reflux plate together form a sedimentation zone.

[0013] A further improvement of this utility model is that an observation window is provided on the tank corresponding to the sedimentation zone to observe the amount of flocs accumulating in the sedimentation zone so as to discharge the accumulated flocs in a timely manner.

[0014] A further improvement of this utility model is that a mud discharge pipe is connected to the bottom of the tank, and a switch valve is installed on the mud discharge pipe.

[0015] A further improvement to the technical solution of this utility model is that four support legs are provided at the bottom of the tank.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects: 1. The present invention provides a composite material wastewater clarifier. The wastewater clarifier uses a spiral guide component installed in the guide pipe to generate centrifugal force by rotating the mixture of raw water and flocculant. This forces the mixture to move along a spiral trajectory, which can increase the contact area and mixing time between the raw water and the flocculant, making the agent more evenly dispersed, promoting full contact and reaction between the flocculant and the suspended particles in the raw water, accelerating the aggregation and sedimentation of particles, thereby improving the flocculation efficiency of the entire wastewater clarifier.

[0017] 2. The present invention provides a composite material wastewater clarifier. The wastewater clarifier has a reflux plate set at the top of the sedimentation zone. The upper part of the reflux plate is evenly provided with several guide holes to perform secondary filtration on the settled water, which can further remove fine suspended solids and improve the quality of the effluent. The lower part of the reflux plate has no guide holes, so the supernatant entering the effluent channel can undergo secondary sedimentation to improve the quality of the supernatant effluent. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a composite material wastewater clarifier; Figure 2 This is a diagram showing the internal structure of a composite material wastewater clarifier. Figure 3 This is a three-dimensional structural diagram of a composite material wastewater clarifier; Figure 4 This is a cross-sectional view of a composite material wastewater clarifier; Attached reference numerals: 1. Tank body; 2. Raw water inlet; 3. Flocculant dosing port; 4. Baffle plate; 5. Baffle pipe; 6. Spiral guide component; 7. Return plate; 8. Manhole for cleaning; 9. Water outlet channel; 10. Water outlet; 11. Sedimentation zone; 12. Sludge outlet pipe; 13. Switch valve; 14. Observation window; 15. Support leg; 17. Baffle hole; 18. Mixing zone. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further explained below with reference to specific embodiments.

[0024] like Figures 1-4 As shown, this embodiment provides a composite material wastewater clarifier, including a tank 1. Four support legs 15 are provided at the bottom of the tank 1 to fix and support the entire tank 1, ensuring stability during operation. The support legs 15 raise the tank 1, maintaining a certain distance from the ground, facilitating pipe connections, sludge removal operations, and daily maintenance and repair at the bottom of the clarifier. A raw water inlet 2 and a flocculant dosing port 3 are respectively located on both sides of the top surface of the tank 1. An outlet 10 is provided at the top of the tank 1. A guide pipe 5 is provided at the center of the tank 1. An inverted conical guide plate 4 and a right-side-up conical return plate 7 are respectively provided at the upper and lower ends of the guide pipe 5. The upper edge of the guide plate 4 and the lower edge of the return plate 7 are connected to the tank 1. A spiral guide component 6 is provided at the upper part of the inner cavity of the guide pipe 5 to improve the mixing efficiency of raw water and flocculant. Tank 1, guide plate 4, guide pipe 5, spiral guide component 6, and return plate 7 are all made of fiberglass. Fiberglass has excellent corrosion resistance and can resist the erosion of common acids, alkalis, salts, and other chemicals in sewage. This allows the fiberglass components to maintain stable performance in long-term contact with sewage, thus extending the service life of the equipment.

[0025] In this embodiment, the inner wall of the tank 1, the outer wall of the guide pipe 5, the bottom surface of the guide plate 4, and the upper surface of the return plate 7 together form a water outlet channel 9. At least one water outlet 10 is provided on the upper part of the water outlet channel 9 corresponding to the tank 1 for drawing water out of the water outlet channel 9. A cleaning manhole 8 is provided on the lower part of the water outlet channel 9 corresponding to the tank 1 for cleaning solid particles deposited in the water outlet channel 9. The guide plate 4 and the inner wall of the top of the tank 1 together form a mixing zone 18. Several guide holes 17 are evenly provided on the upper part of the return plate 7. The bottom inner wall of the tank 1 cavity and the bottom surface of the return plate 7 together form a sedimentation zone 11. An observation window 14 is provided on the tank 1 corresponding to the sedimentation zone 11 for observing the amount of flocs accumulated in the sedimentation zone 11 so as to discharge the accumulated flocs in a timely manner. A sludge outlet pipe 12 is connected to the bottom of the tank 1, and a switch valve 13 is provided on the sludge outlet pipe 12.

[0026] This embodiment provides a composite material wastewater clarifier, the working principle of which is as follows: raw water enters the mixing zone 18 above the guide plate 4 from the raw water inlet 2 and flocculant enters from the flocculant dosing port 3, allowing the raw water and flocculant to undergo preliminary mixing to form a mixed liquid. The mixed liquid enters the guide pipe 5 through the guide plate 4 and flows in the spiral guide member 6 at the top of the guide pipe 5. The spiral structure of the spiral guide member 6 forces the mixed liquid to move along a spiral trajectory, generating centrifugal force, causing the raw water and flocculant to form a swirling flow in the guide pipe 5, increasing the contact between the two phases of raw water and flocculant. The area and mixing time promote sufficient contact and reaction between the flocculant and suspended particles in the raw water, making it easier for them to aggregate and form larger flocs, accelerating particle aggregation and sedimentation, thereby improving the flocculation efficiency of the entire wastewater clarifier. After passing through the spiral guide 6 at the top of the guide pipe 5, the mixed liquid flows downward through the straight pipe at the bottom of the guide pipe 5. The presence of the straight pipe can gradually transition the water flow from a swirling state to a relatively stable laminar flow state, reducing the degree of turbulence before the water flows into the sedimentation zone 11, ensuring that the water flows smoothly into the sedimentation zone 11. At this time, the tank... The bottom of the 1 is connected to a sludge discharge pipe 12, and a switch valve 13 on the sludge discharge pipe 12 is in the closed state. Therefore, the flocculated mixture settles in the sedimentation zone 11. Larger flocs settle under gravity and separate from the supernatant, thus achieving effective separation of solid particles and liquid. When it is observed through the observation window 14 that there is too much flocculation in the sedimentation zone 11, the switch valve 13 on the sludge discharge pipe 12 is opened to discharge sludge. The water level of the supernatant in the upper part gradually rises and enters through the guide hole 17 set on the upper part of the return plate 7. The water outlet channel 9 and the upper part of the return plate 7 are evenly provided with several guide holes 17 to perform secondary filtration on the settled water, which can further remove fine suspended solids and improve the quality of the effluent. The lower part of the return plate 7 does not have guide holes 17, so the supernatant entering the water outlet channel 9 can undergo secondary sedimentation to improve the quality of the supernatant. The settled particles accumulate on the upper surface of the lower part of the return plate 7 so that the cleaning manhole 8 can be opened for cleaning when the wastewater clarifier is stopped. As the water level in the water outlet channel 9 gradually rises, the supernatant is discharged from the outlet 10.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A composite material wastewater clarifier, characterized in that, The tank (1) includes a raw water inlet (2) and a flocculant dosing port (3) located on both sides of the top surface of the tank (1). The tank (1) has an outlet (10) at the top. The tank (1) has a guide pipe (5) at the center. The guide pipe (5) has an inverted conical guide plate (4) and an upright conical return plate (7) at its upper and lower ends. The upper edge of the guide plate (4) and the lower edge of the return plate (7) are connected to the tank (1). The guide pipe (5) has a spiral guide component (6) at the top of its inner cavity to improve the mixing efficiency of the raw water and the flocculant.

2. The composite material wastewater clarifier according to claim 1, characterized in that, The tank body (1), the guide plate (4), the guide pipe (5), the spiral guide component (6) and the return plate (7) are all made of fiberglass.

3. A composite material wastewater clarifier according to claim 1, characterized in that, The guide plate (4) and the inner wall of the top of the tank (1) together form a mixing zone (18).

4. A composite material wastewater clarifier according to claim 2, characterized in that, The inner wall of the tank (1), the outer wall of the guide pipe (5), the bottom surface of the guide plate (4) and the upper surface of the return plate (7) form a water outlet channel (9). At least one water outlet (10) is provided on the upper part of the tank (1) corresponding to the water outlet channel (9) to draw out the water from the water outlet channel (9).

5. A composite material wastewater clarifier according to claim 3, characterized in that, A cleaning manhole (8) is provided on the tank (1) corresponding to the lower part of the water outlet channel (9).

6. A composite material wastewater clarifier according to claim 3, characterized in that, Several guide holes (17) are evenly arranged on the upper part of the reflux plate (7).

7. A composite material wastewater clarifier according to claim 2, characterized in that, The bottom inner wall of the tank (1) cavity and the bottom surface of the reflux plate (7) together form a sedimentation zone (11).

8. A composite material wastewater clarifier according to claim 6, characterized in that, An observation window (14) is provided on the tank (1) corresponding to the sedimentation zone (11) to observe the amount of flocs accumulated in the sedimentation zone (11) so that the accumulated flocs can be discharged in a timely manner.

9. A composite material wastewater clarifier according to claim 7, characterized in that, The bottom of the tank (1) is connected to a mud discharge pipe (12), and a switch valve (13) is installed on the mud discharge pipe (12).

10. A composite material wastewater clarifier according to claim 8, characterized in that, The bottom of the tank (1) is provided with four support legs (15).

Images