Detachable activated sludge sterilization reactor

Abstract

The utility model discloses a detachable activated sludge sterilization reactor which comprises a sterilization reactor body, a thrust ring is arranged on the inner side of the first end of the sterilization reactor body and connected with an outlet reducer, and an outlet flange is arranged at the end of the outlet reducer. The second end of the sterilization reactor body is provided with a first flange connecting part, a pressing ring and an inlet reducer, one end of the inlet reducer is provided with a second flange connecting part, and the other end is provided with an inlet flange; the compression ring is fastened and connected with a second flange connecting part of the inlet reducer through a first flange connecting part and a bolt, and a sterilization plate assembly is arranged between the thrust ring and the compression ring. The device disclosed by the utility model can be suitable for various sludge reduction systems adopting an activated sludge sterilization and inactivation mechanism, the sterilization plate assembly is fully played to realize the inactivation and sterilization effects, and a good sludge reduction effect is realized; by disassembling the large and small heads at the inlet end, the sterilization plate assembly is convenient to disassemble and clean, the offline cleaning effect of the assembly is ensured, and long-term efficient use is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater biochemical treatment technology, specifically relating to a detachable activated sludge sterilization reactor. Background Technology

[0002] The activated sludge process is one of the most common wastewater treatment technologies, especially in large and medium-sized wastewater treatment plants. 2 Activated sludge treatment technologies include oxidation ditches and other methods. During operation, activated sludge processes generate a certain proportion of excess sludge that needs to be discharged. Disposal of discharged sludge requires separate facilities and investment, leading to increasing emphasis on sludge reduction technologies in recent years. Conventional activated sludge sterilization reactors suffer from problems such as rigid equipment structures, susceptibility to clogging, and difficulty in cleaning.

[0003] Therefore, it is necessary to propose an activated sludge sterilization reactor that is simple in structure, easy to disassemble and clean, so as to improve the long-term stable operation of the sludge sterilization and reduction system. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a detachable activated sludge sterilization reactor, solving problems such as rigid equipment structure, easy clogging, and difficulty in cleaning in existing technologies.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A detachable activated sludge sterilization reactor includes a sterilization reactor body, which is a cylindrical structure. A thrust ring is provided on the inner side of the first end of the sterilization reactor body, and an outlet reducer is provided connected to the first end port of the sterilization reactor body. An outlet flange is provided at the end of the outlet reducer. The second end of the sterilization reactor body is provided with a first flange connection, a pressure ring, and an inlet reducer. A second flange connection is provided at one end of the inlet reducer, and an inlet flange is provided at the other end. The pressure ring is fastened to the first flange connection and the second flange connection of the inlet reducer with bolts. A sterilization plate assembly is provided between the thrust ring and the pressure ring.

[0007] Furthermore, the pressure ring includes a pressure ring body and a connecting ring connected to the pressure ring body. The connecting ring is located between the first flange connection and the second flange connection and is fastened by bolts. Rubber gaskets are provided on both sides of the connecting ring for sealing. The pressure ring body is located inside the second end of the sterilization reactor body.

[0008] Furthermore, the thrust ring and the pressure ring body are provided with corresponding slots for fixing the sterilization plate assembly, and the sterilization plate assembly is disposed in the corresponding slots.

[0009] Furthermore, the card slot has a size of 3-7mm and a card slot spacing of 8-15cm, serving as a flow channel for activated sludge.

[0010] Furthermore, the sterilization plate assembly is arranged inside the sterilization reactor body. The thickness of the sterilization plate assembly is 4-6mm, the length is consistent with the inner cylinder length of the sterilization reactor body, and the width is arranged in steps according to the inner diameter of the sterilization reactor body.

[0011] Furthermore, the outlet flange and the inlet flange are respectively used to connect to the pipeline to be installed, and the diameter of the sterilization reactor body is larger than the diameter of the pipeline to be installed.

[0012] Furthermore, the length of the sterilization reactor body is designed according to the amount of water to be treated, and the length ranges from 900 to 2500 mm.

[0013] Furthermore, the thrust ring is integrally welded to the sterilization reactor body, and the outlet reducer is integrally welded to the sterilization reactor body.

[0014] Furthermore, pressure gauges or differential pressure transmitters are installed at the inlet and outlet of the sterilization reactor body to detect pressure difference changes within the sterilization reactor body.

[0015] The technical solution of this utility model has the following beneficial effects:

[0016] 1. The present invention provides a detachable activated sludge sterilization reactor, which is applicable to various sludge reduction systems that employ activated sludge sterilization and inactivation mechanisms. It fully utilizes the sterilization plate components made of alloy materials to achieve sterilization and inactivation effects, thereby achieving good sludge reduction results.

[0017] 2. The sterilization reactor of this utility model uses thrust rings and retaining rings at both ends to fix the sterilization plate assembly. The sterilization plate assembly can be easily disassembled and cleaned by disassembling the large and small heads at the inlet end, ensuring the offline cleaning effect of the assembly and achieving long-term efficient use.

[0018] 3. The thrust ring, pressure ring and sterilization plate assembly of this utility model are arranged in an alternating manner to achieve turbulent flow of incoming water and sludge, enhance contact reaction efficiency, and achieve better sterilization and cell wall breaking effect.

[0019] 4. The thickness of the sterilization plate assembly and the matching slot of this utility model can be freely adjusted and matched to meet the actual needs of different scale treatment systems. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the detachable activated sludge sterilization reactor of this utility model.

[0021] Figure 2This is a first end side view of the sterilization reactor body of this utility model;

[0022] Figure 3 This is a side view of the second end of the sterilization reactor body of this utility model;

[0023] In the figure: 1. Sterilization reactor body; 2. Thrust ring; 3. Outlet reducer; 4. Outlet flange; 5. First flange connection; 6. Pressure ring; 61. Pressure ring body; 62. Connecting ring; 7. Inlet reducer; 8. Second flange connection; 9. Inlet flange; 10. Sterilization plate assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-3 As shown, a detachable activated sludge sterilization reactor includes a sterilization reactor body 1, which is a cylindrical structure. A thrust ring 2 is provided on the inner side of the first end of the sterilization reactor body 1, and an outlet reducer 3 is provided and connected to the first end port of the sterilization reactor body 1. An outlet flange 4 is provided at the end of the outlet reducer 3. A first flange connection part 5, a pressure ring 6, and an inlet reducer 7 are provided at the second end of the sterilization reactor body 1. A second flange connection part 8 is provided at one end of the inlet reducer 7, and an inlet flange 9 is provided at the other end. The pressure ring 6 is fastened to the first flange connection part 5 and the second flange connection part 8 of the inlet reducer 7 with bolts. A sterilization plate assembly 10 is provided between the thrust ring 2 and the pressure ring 6.

[0026] The grooved pressure ring 6 is arranged on the inlet side of the sterilization reactor body 1. The pressure ring 6 includes a pressure ring body 61 and a connecting ring 62 connected to the pressure ring body 61. The connecting ring 62 is located between the first flange connection part 5 and the second flange connection part 8 and is fastened by bolts. Rubber gaskets are provided on both sides of the connecting ring 62 for sealing. The pressure ring body 61 is located on the inner side of the second end of the sterilization reactor body 1.

[0027] The thrust ring 2 and the pressure ring body 61 are provided with corresponding slots for fixing the sterilization plate assembly 10, and the sterilization plate assembly 10 is disposed in the corresponding slots.

[0028] The outlet flange 4 and inlet flange 9 are used to connect to the pipeline to be installed. The sterilization reactor body 1 is cylindrical, with a diameter one size larger than the diameter of the pipeline at the intended installation location to ensure sufficient flow area. Both ends are connected to the pipeline after diameter reduction via inlet reducer 7 and outlet reducer 3. The length of the sterilization reactor body 1 is designed according to the water treatment volume, typically between 900-2500 mm.

[0029] The thrust ring 2 with grooves is integrally welded to the sterilization reactor body 1, and then the outlet reducer 3 and outlet flange 4 are welded in sequence. The thrust ring 2 has grooves of 3-7mm evenly distributed on it for fixing the sterilization plate assembly 10 made of alloy material; the groove spacing is 8-15cm, which is used as a flow channel for activated sludge.

[0030] The pressure ring body 61 has 3-7mm grooves evenly distributed on it for pressing the sterilization plate assembly 10 made of alloy material; the groove spacing is 8-15cm, and it is arranged in a mirror image with the thrust ring 2.

[0031] The sterilization plate assembly 10 made of the alloy material is arranged inside the sterilization reactor body 1. The thickness of the sterilization plate assembly 10 is 4-6 mm, the length is consistent with the inner cylinder length of the sterilization reactor body 1, and the width is arranged in steps according to the inner diameter of the sterilization reactor body 1.

[0032] Pressure gauges or differential pressure transmitters are installed at the inlet and outlet of the sterilization reactor body 1. By detecting the pressure difference change of the sterilization reactor body 1, the equipment clogging situation is determined, and the inlet reducer 7 is disassembled in time to perform offline cleaning of the sterilization plate assembly 10.

[0033] The aforementioned detachable activated sludge sterilization reactor is suitable for various treatment processes that reduce sludge volume through microbial sterilization and inactivation. Example 1

[0034] A municipal wastewater treatment plant is designed to treat 10,000 m³ per day, and the system adopts A. 2 The O process is designed to produce effluent that meets the Class A standard of the "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants" (GB 18918-2002). (Attached) Figure 1 A schematic diagram of a detachable activated sludge sterilization reactor designed to support this project.

[0035] It includes: sterilization reactor body 1, thrust ring 2, outlet reducer 3, outlet flange 4, first flange connection 5, pressure ring 6, inlet reducer 7, second flange connection 8, inlet flange 9, and sterilization plate assembly 10.

[0036] The sludge return pipe of the wastewater treatment plant has a diameter of DN300mm, and the activated sludge sterilization reactor body 1 is designed to have a diameter of DN350mm and a total length of 2000mm. The sterilization plate assembly 10, made of alloy material, is 5mm thick. The grooved thrust ring 2 and the grooved pressure ring 6 have grooves with a width of 6mm and a groove spacing of 10mm.

[0037] Under normal system operation, activated sludge enters the sterilization reactor body 1 through the inlet reducer 7 via the sludge return pump. The sterilization plate assembly 10, made of alloy material, inactivates and breaks down the microorganisms on the surface of the activated sludge. The effluent is then returned to the wastewater biological treatment system inlet through the outlet reducer 3, achieving a reduction in activated sludge volume. After a period of operation, the pressure gauges at the inlet and outlet of the sterilization reactor body 1 are observed to calculate the pressure difference and determine the degree of fouling inside the reactor body 1. The inlet reducer 7 is then removed with bolts, followed by the retaining ring 6. The sterilization plate assembly 10 is then disassembled and cleaned using a high-pressure water gun. After cleaning, the assembly is reassembled. Example 2

[0038] A municipal wastewater treatment plant is designed to treat 30,000 m³ per day. The system employs an oxidation ditch process, and the designed effluent meets the Class A standard of the "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants" (GB 18918-2002). (Attached) Figure 1 A schematic diagram of a detachable activated sludge sterilization reactor designed to support this project.

[0039] It includes: sterilization reactor body 1, thrust ring 2, outlet reducer 3, outlet flange 4, first flange connection 5, pressure ring 6, inlet reducer 7, second flange connection 8, inlet flange 9, and sterilization plate assembly 10.

[0040] The sludge return pump at this wastewater treatment plant has a single outlet branch pipe diameter of DN350mm and a main pipe diameter of DN500. The activated sludge sterilization reactor body 1 is designed with a diameter of DN400mm and a total length of 2400mm, consisting of two units arranged on the outlet branch pipes of the sludge return pumps. The sterilization plate assembly 10, made of alloy material, is 6mm thick. The thrust ring 2 and the pressure ring 6, both with grooves, have grooves with a width of 7mm and a groove spacing of 12mm.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A detachable activated sludge sterilization reactor, characterized in that, The reactor includes a sterilization reactor body (1), which is a cylindrical structure. A thrust ring (2) is provided on the inner side of the first end of the sterilization reactor body (1), and an outlet reducer (3) is provided and connected to the first end port of the sterilization reactor body (1). An outlet flange (4) is provided at the end of the outlet reducer (3). A first flange connection (5), a pressure ring (6), and an inlet reducer (7) are provided at the second end of the sterilization reactor body (1). A second flange connection (8) is provided at one end of the inlet reducer (7), and an inlet flange (9) is provided at the other end. The pressure ring (6) is fastened to the first flange connection (5) and the second flange connection (8) of the inlet reducer (7) by bolts. A sterilization plate assembly (10) is provided between the thrust ring (2) and the pressure ring (6).

2. The detachable activated sludge sterilization reactor according to claim 1, characterized in that, The pressure ring (6) includes a pressure ring body (61) and a connecting ring (62) connected to the pressure ring body (61). The connecting ring (62) is located between the first flange connection part (5) and the second flange connection part (8) and is fastened by bolts. Rubber gaskets are provided on both sides of the connecting ring (62) for sealing. The pressure ring body (61) is located on the inner side of the second end of the sterilization reactor body (1).

3. The detachable activated sludge sterilization reactor according to claim 2, characterized in that, The thrust ring (2) and the pressure ring body (61) are provided with corresponding slots for fixing the sterilization plate assembly (10), and the sterilization plate assembly (10) is set in the corresponding slot.

4. The detachable activated sludge sterilization reactor according to claim 3, characterized in that, The slots are 3-7mm in size and 8-15cm apart, serving as channels for the flow of activated sludge.

5. A detachable activated sludge sterilization reactor according to claim 3, characterized in that, The sterilization plate assembly (10) is arranged inside the sterilization reactor body (1). The thickness of the sterilization plate assembly (10) is 4-6mm, the length is consistent with the inner cylinder length of the sterilization reactor body (1), and the width is arranged in steps according to the inner diameter of the sterilization reactor body (1).

6. The detachable activated sludge sterilization reactor according to claim 1, characterized in that, The outlet flange (4) and inlet flange (9) are respectively used to connect to the pipeline to be installed, and the diameter of the sterilization reactor body (1) is larger than the diameter of the pipeline to be installed.

7. A detachable activated sludge sterilization reactor according to claim 1, characterized in that, The length of the sterilization reactor body (1) is designed according to the amount of water to be treated, and the length ranges from 900 to 2500 mm.

8. A detachable activated sludge sterilization reactor according to claim 1, characterized in that, The thrust ring (2) is integrally welded to the sterilization reactor body (1), and the outlet reducer (3) is integrally welded to the sterilization reactor body (1).

9. A detachable activated sludge sterilization reactor according to claim 1, characterized in that, Pressure gauges or differential pressure transmitters are installed at the inlet and outlet of the sterilization reactor body (1) to detect pressure difference changes within the sterilization reactor body (1).

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