Filtering adsorber for activated carbon sewage treatment system

Abstract

The utility model discloses a filter adsorber for activated carbon sewage treatment system, it belongs to sewage treatment equipment technical field, including shell, material pipe, gas jet device and conveying shell, the shell includes the deposition cylinder and filter cylinder set up up and down, and the inside diameter of deposition cylinder is greater than the inside diameter of filter cylinder, and both are connected through the link cylinder, the lower part of filter cylinder is equipped with the water inlet pipe, and the lateral wall of deposition cylinder is provided with the clean drain pipe, the material pipe includes the main pipe and the plugging head, and the main pipe is the pipe fitting of two -end opening, and is fixedly connected filter cylinder, and the main pipe upper end extends to the deposition cylinder and is provided with the discharge gate, the plugging head is fixedly connected with the upper end of main pipe, and the lower end of plugging head is equipped with the material guide platform, and the material guide platform is centrally arranged and is roughly conical, and its circumferential side can guide the activated carbon particle flowing from bottom to top smoothly and make the activated carbon particle flow out the material pipe through the discharge gate along the tangential inclination of circumferential side, reduce the contact impact when lifting and self -cleaning, avoid the activated carbon particle breakage, prolong the life.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, specifically to a filter adsorber for an activated carbon wastewater treatment system. Background Technology

[0002] Wastewater is water discharged during human production and daily life activities. Water pollution not only harms human health but also seriously damages ecosystems, thus requiring treatment to meet discharge standards. Activated carbon is commonly used in wastewater treatment systems, utilizing its large surface area and strong adsorption capacity to purify wastewater.

[0003] To facilitate automatic addition and removal of activated carbon, existing wastewater treatment systems typically use a cylindrical activated carbon adsorption device. Activated carbon is placed inside the cylinder, and wastewater enters the cylinder and is purified through adsorption and filtration by the activated carbon. After a period of use, as the efficiency of the activated carbon decreases and the filtration effect no longer meets the water treatment requirements, the activated carbon needs to be removed from the cylinder, reactivated, and then reinserted. For details, please refer to the activated carbon wastewater treatment system disclosed in patent publication number CN108128835A.

[0004] To facilitate automatic feeding, the cylinder is equipped with a feed pipe and a gas ejector. The gas ejector pushes the activated carbon into the feed pipe, and a discharge port is located on the upper outer circumference of the feed pipe. During feeding, the lifting sleeve of the automatic feeding device covers the upper outer side of the feed pipe, allowing the activated carbon inside to enter the lifting sleeve and continue downstream. However, due to the unreasonable design of the feed pipe structure, it has been found in practical applications that the activated carbon particles experience impact during cleaning and regeneration, leading to a certain degree of breakage and pulverization. This affects the continuous service life of the treatment system and reduces its long-term effectiveness. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a filter adsorber for activated carbon wastewater treatment systems, which optimizes the structure, reduces transport impact, avoids breakage of activated carbon particles, and extends the service life of the wastewater treatment system.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a filter adsorber for activated carbon wastewater treatment system, including a shell, a feed pipe, a gas jet and a conveying shell. The conveying shell is funnel-shaped, with its large end opening fixedly connected to the lower end of the shell. The gas jet is fixedly installed at the small end opening of the conveying shell, with its gas outlet facing the lower end opening of the feed pipe. The upper end of the feed pipe has a discharge port on its outer circumferential surface. The housing includes a sedimentation cylinder and a filter cylinder arranged vertically. The inner diameter of the sedimentation cylinder is larger than that of the filter cylinder, and the two are connected by a connecting cylinder. The lower part of the filter cylinder is provided with a water inlet pipe, and the side wall of the sedimentation cylinder is provided with a cleaning drain pipe. The feed pipe includes a main pipe and a plug. The main pipe is a pipe with openings at both ends and is fixedly connected to the filter cylinder. The upper end of the main pipe extends into the sedimentation cylinder and is provided with the discharge port. The plug is fixedly connected to the upper end of the main pipe. The lower end of the plug is provided with a guide platform. The guide platform is centrally located and is approximately conical. Its circumferential side can guide the activated carbon particles flowing from bottom to top to smoothly turn and flow out of the main pipe through the discharge port along the tangential direction of the circumferential side.

[0007] In the activated carbon wastewater treatment system filter adsorber described above, the angle α between the tangent of the outer edge of the peripheral side and the horizontal plane ranges from 0° to α to 6°.

[0008] In the aforementioned activated carbon wastewater treatment system filter adsorber, the lower end face of the feed platform is a hemispherical surface, which is smoothly connected to the peripheral surface.

[0009] In the aforementioned activated carbon wastewater treatment system filter adsorber, a flow guide hood is installed inside the sedimentation cylinder, and the flow guide hood is funnel-shaped.

[0010] In the above-mentioned activated carbon wastewater treatment system filter adsorber, the flow guide hood is snapped onto the upper end of the sedimentation cylinder by the flange at its upper end; A flow guide ring is provided on the outer wall of the flow guide shroud, and the outer side of the flow guide ring is attached to the inner wall of the deposition cylinder; the cleaning drain pipe is located below the flow guide ring.

[0011] In the activated carbon wastewater treatment system filter adsorber described above, the clean drain pipe is higher than the lower edge of the flow guide shroud.

[0012] In the activated carbon wastewater treatment system filter adsorber described above, the discharge port is located below the flow guide shroud and is positioned near the lower edge of the flow guide shroud.

[0013] In the activated carbon wastewater treatment system filter adsorber described above, the feed pipe is fixed to the inner wall of the filter cylinder by several support pipes.

[0014] In the aforementioned activated carbon wastewater treatment system filter adsorber, several of the aforementioned support pipes are evenly distributed along the axial direction of the feed pipe and spaced apart in the circumferential direction.

[0015] The beneficial effects of this utility model are as follows: The feed pipe of the filter adsorber in the activated carbon wastewater treatment system is designed with a split structure, consisting of a main pipe and a sealing head. This facilitates processing and, in particular, allows for the formation of a guide platform at the upper end of the feed pipe to guide the flow of activated carbon particles. This prevents the activated carbon particles from impacting the inner wall of the lifting sleeve vertically, instead placing them at a set angle to the inner wall. This guides the activated carbon particles to change their flow direction after contacting the inner wall of the lifting sleeve, avoiding damage to the activated carbon particles from impact. During the self-cleaning process, the activated carbon particles flowing out of the feed pipe tend to tilt upwards, extending their flow displacement before contacting the guide hood or sedimentation cylinder, thus reducing contact impact. The lower end of the guide table is hemispherical, which facilitates material distribution and ensures even distribution in the circumferential direction; The flow guide hood has a reasonable structural design and good stability when connected to the sedimentation cylinder; the funnel-shaped structure facilitates feeding and can also prevent activated carbon particles from moving toward the cleaning drain pipe during the self-cleaning process, thus avoiding blockage of the cleaning drain pipe or loss of activated carbon. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a filter adsorber used in an activated carbon wastewater treatment system; Figure 2 A cross-sectional view of a filter adsorber used in an activated carbon wastewater treatment system; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 for Figure 2 A magnified view of region D in the middle.

[0017] In the picture: 1-Filter cartridge; 2-Water inlet pipe; 3-Clean drain pipe; 4-Flow guide hood; 5-Material pipe; 6-Support pipe; 7-Gas ejector; 8-Conveying shell; 9-Connecting cylinder; 10-Sedimentation cylinder; 11-Flow guide ring; 12-Flanged edge; 13-Main pipe; 14-Discharge port; 15-Sealing head; 16-Guide platform; 17-Surrounding side; 18-Lower end face. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Please refer to Figure 1 , Figure 2 This invention provides an embodiment of a filter adsorber for an activated carbon wastewater treatment system, comprising a shell, a feed pipe 5, and a gas ejector 7. Activated carbon particles are fed into the inner cavity of the shell. The feed pipe 5 and the gas ejector 7 are used for the extraction and cleaning of activated carbon particles. The flow direction of the activated carbon particles during self-cleaning of the filter adsorber can be referenced... Figure 2The middle arrow indicates the direction; when the activated carbon particles are extracted, the activated carbon particles flow out of the feed pipe 5 and enter the lifting sleeve. The lifting sleeve and the automatic feeding device are existing technologies and are not improved in this application, so they are not shown in the figure.

[0020] like Figure 2 As shown, the housing includes a filter cylinder 1 and a sedimentation cylinder 10. The filter cylinder 1 is located below the sedimentation cylinder 10, and the two are connected by a connecting cylinder 9. A water inlet pipe 2 is provided at the lower part of the filter cylinder 1 for connecting to external wastewater conveying equipment. It is understood that a water distributor connected to the water inlet pipe 2 can be provided inside the filter cylinder 1 to improve the uniform distribution of inlet water within the filter cylinder 1. The outlet of the filter adsorber during normal operation is the upper opening of the sedimentation cylinder 10. A cleaning drain pipe 3 is provided on the side wall of the sedimentation cylinder 10 for discharging cleaning water during activated carbon cleaning. The filter cylinder 1 and sedimentation cylinder 10 are preferably cylindrical and coaxially arranged with the feed pipe 5, which facilitates uniform material distribution and thorough material removal during feeding and self-cleaning processes.

[0021] The inner diameter of the sedimentation cylinder 10 is larger than that of the filter cylinder 1. The connecting cylinder 9 is funnel-shaped, with a larger upper end and a smaller lower end. That is, the lower end of the connecting cylinder 9 is connected to the upper end of the filter cylinder 1, and the upper end is connected to the sedimentation cylinder 10. The feed pipe 5 is fixedly connected to the inner wall of the filter cylinder 1, and its upper end extends into the sedimentation cylinder 10. The outer circumferential surface of the upper end of the feed pipe 5 is provided with a discharge port 14, which is also located inside the sedimentation cylinder 10. Because the inner diameter of the sedimentation cylinder 10 is larger, it is beneficial for the deposition and falling of activated carbon particles, both during normal operation of the filter adsorber and during self-cleaning operation. The connecting cylinder 9 guides the deposited and falling activated carbon particles to transfer into the filter cylinder 1.

[0022] A flow guide hood 4 is installed inside the sedimentation cylinder 10. The flow guide hood 4 is also funnel-shaped to facilitate material feeding. The flow guide hood 4 is snapped onto the upper end of the sedimentation cylinder 10 via its upper flange 12, and the cleaning drain pipe 3 is higher than the lower edge of the flow guide hood 4. Furthermore, because the outer diameter of the upper end of the flow guide hood 4 is larger than its lower end, the space between the flow guide hood 4 and the inner wall of the sedimentation cylinder 10 is smaller at the top and larger at the bottom; for example... Figure 3 As shown, a guide ring 11 is provided on the outer wall of the guide hood 4 to guide the water flow and prevent activated carbon particles from entering the narrow space between the guide hood 4 and the sedimentation cylinder 10. The outer surface of the guide ring 11 is higher than the cleaning drain pipe 3. At the same time, the outer surface of the guide ring 11 is cylindrical, and the inner surface of the sedimentation cylinder 10 is cylindrical. The two fit together to support the guide hood 4, especially in cooperation with the flange 12 at the upper end of the guide hood 4 to fix and support the guide hood 4.

[0023] The lower opening of the filter cartridge 1 is sealed by the conveying shell 8, which is funnel-shaped. Its large end opening is fixed and sealed to the filter cartridge 1 through a flange structure, and the small end opening is fixed to the gas jet 7 through the flange structure. The gas outlet of the gas jet 7 is directly opposite the lower opening of the feed pipe 5. The airflow drives the activated carbon particles to flow upward along the feed pipe 5. The gas jet 7 is an existing product, and its cooperation with the feed pipe 5 to transport activated carbon is also disclosed in the patent document with publication number CN108128835A, which will not be described in detail here.

[0024] like Figure 4 As shown, the feed pipe 5 is a split structure, comprising a main pipe 13 and a sealing head 15. The main pipe 13 is a pipe with openings at both ends, and the sealing head 15 is fixedly connected to the upper end of the main pipe 13. The connection method can be a detachable connection, such as a threaded connection or a snap-fit ​​connection; or a non-detachable connection, such as welding, bonding, or interference fit. The discharge port 14 is located at the upper end of the main pipe 13.

[0025] The lower end of the sealing head 15 is provided with a guide platform 16, which is centrally located and roughly conical, meaning that the cross-section of the guide platform 16 gradually increases from bottom to top. The peripheral side 17 of the guide platform 16 is concave, and the tangent of its outer edge extends outward and upward, with an angle α with the horizontal plane ranging from 0° to 6°, which can effectively balance material lifting and self-cleaning functions. The peripheral side 17 guides the activated carbon particles flowing from bottom to top to smoothly change direction, flowing out of the discharge pipe 5 through the discharge port 14 along the tangent of the peripheral side 17. When the activated carbon particles flow out of the discharge pipe 5, they have an upward tilt angle relative to the horizontal plane, which can reduce or avoid the impact when the activated carbon particles flow out horizontally. This is reflected in two aspects. First, when the wastewater treatment system needs to extract activated carbon, the lifting sleeve covers the upper part of the feed pipe 5. The activated carbon particles flowing out of the feed pipe 5 have an upward inertia. Combined with the upward negative pressure conveying force inside the lifting sleeve, the activated carbon particles no longer vertically impact the inner wall of the sleeve, which can reduce the impact force and the stress on the activated carbon particles. Second, when the filter adsorber is self-cleaning, the activated carbon particles have an upward tilt angle when flowing out of the feed pipe 5, which can increase their travel when contacting the inner wall of the sedimentation cylinder 10 and reduce their impact force when contacting the inner wall of the sedimentation cylinder 10. Preferably, the discharge port 14 is located on the lower side of the lower edge of the guide hood 4, and is set close to the lower edge of the guide hood 4. The guide hood 4 can prevent the activated carbon particles from flowing towards the clean drain pipe 3.

[0026] Furthermore, the lower end face 18 of the guide platform 16 is a hemispherical surface, which smoothly transitions with the peripheral side face 17; this can prevent activated carbon particles from directly impacting the lower end face 18 and causing damage, while improving the uniform distribution of activated carbon particles in the circumferential direction.

[0027] The feed pipe 5 is fixed to the inner wall of the filter cylinder 1 by several support pipes 6. The support pipes 6 are evenly distributed along the axial direction of the feed pipe 5 and spaced apart in the circumferential direction. During the self-cleaning process of the filter adsorber, the support pipes 6 can form turbulence to a certain extent, which improves the contact between the cleaning water and the activated carbon particles.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filter adsorber for activated carbon wastewater treatment system, comprising a shell, a feed pipe (5), a gas ejector (7), and a conveying shell (8), wherein the conveying shell (8) is funnel-shaped, with its large end opening fixedly connected to the lower end of the shell, the gas ejector (7) being fixedly installed at the small end opening of the conveying shell (8), the gas outlet being directly opposite the lower end opening of the feed pipe (5), and a discharge port (14) being provided on the outer circumferential surface of the upper end of the feed pipe (5); characterized in that, The housing includes a sedimentation cylinder (10) and a filter cylinder (1) arranged vertically. The inner diameter of the sedimentation cylinder (10) is larger than the inner diameter of the filter cylinder (1), and the two are connected by a connecting cylinder (9). The lower part of the filter cylinder (1) is provided with a water inlet pipe (2), and the side wall of the sedimentation cylinder (10) is provided with a cleaning drain pipe (3). The feed pipe (5) includes a main pipe (13) and a plug (15). The main pipe (13) is a pipe with openings at both ends and is fixedly connected to the filter cylinder (1). The upper end of the main pipe (13) extends into the sedimentation cylinder (10) and is provided with the discharge port (14). The plug (15) is fixedly connected to the upper end of the main pipe (13). The lower end of the plug (15) is provided with a guide platform (16). The guide platform (16) is centrally located and is approximately conical. Its peripheral side (17) can guide the activated carbon particles flowing from bottom to top to smoothly turn and flow out of the main pipe (13) through the discharge port (14) along the tangential direction of the peripheral side (17).

2. The filter adsorber for an activated carbon sewage treatment system according to claim 1, wherein The angle α between the tangent of the outer edge of the peripheral side (17) and the horizontal plane ranges from 0° to α to 6°.

3. The filter adsorber for an activated carbon sewage treatment system according to claim 1, wherein The lower end face (18) of the guide platform (16) is a hemispherical surface, which is smoothly connected to the peripheral side face (17).

4. The filter adsorber for an activated carbon sewage treatment system according to claim 1, wherein The sedimentation cylinder (10) is provided with a flow guide (4), which is funnel-shaped.

5. The filter adsorber for activated carbon sewage treatment system according to claim 4, characterized in that, The flow guide (4) is snapped onto the upper end of the deposition cylinder (10) by the flange (12) at its upper end; A flow guide ring (11) is provided on the outer wall of the flow guide shroud (4), and the outer side of the flow guide ring (11) is attached to the inner wall of the sedimentation cylinder (10); the cleaning drain pipe (3) is located below the flow guide ring (11).

6. The filter adsorber for the activated carbon wastewater treatment system according to claim 4, characterized in that, The cleaning drain pipe (3) is higher than the lower edge of the flow guide (4).

7. The filter adsorber for the activated carbon wastewater treatment system according to claim 4, characterized in that, The discharge port (14) is located on the lower side of the guide shroud (4) and is located near the lower edge of the guide shroud (4).

8. The filter adsorber for the activated carbon wastewater treatment system according to claim 1, characterized in that, The feed tube (5) is fixed to the inner wall of the filter cylinder (1) by several support tubes (6).

9. The filter adsorber for the activated carbon wastewater treatment system according to claim 8, characterized in that, Several of the support tubes (6) are evenly distributed along the axial direction of the material tube (5) and spaced apart in the circumferential direction.

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