Detachable activated sludge sterilization reactor

Abstract

The invention 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 invention 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] The invention belongs to the technical field of sewage biochemical treatment, and in particular relates to a detachable activated sludge sterilization reactor. Background Art

[0002] The activated sludge process is one of the most common treatment processes in sewage treatment, especially in large and medium-sized sewage treatment plants, which generally adopt A 2 O, oxidation ditch and other activated sludge treatment technologies. During the operation of the activated sludge process, a certain proportion of excess sludge will be generated and needs to be discharged. The disposal of discharged sludge requires separate facilities and investment. In recent years, the research and development of sludge reduction technology has received increasing attention. Conventional activated sludge sterilization reactors have problems such as solidified equipment structure, easy fouling and difficult cleaning.

[0003] Therefore, it is necessary to propose an activated sludge sterilization reactor with a simple structure, easy to disassemble and clean, so as to improve the long-term stable operation of the sludge sterilization and reduction system. Summary of the invention

[0004] In view of the above problems, the present invention provides a detachable activated sludge sterilization reactor to solve the problems existing in the prior art such as solidified equipment structure, easy clogging by dirt, and difficult cleaning.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A detachable activated sludge sterilization reactor comprises a sterilization reactor body, which is a cylindrical structure. A thrust ring is arranged on the inner side of the first end of the sterilization reactor body and an outlet reducer is arranged, which is connected to the first end port of the sterilization reactor body. An outlet flange is arranged at the end of the outlet reducer. A first flange connection part, a pressure ring and an inlet reducer are arranged at the second end of the sterilization reactor body. A second flange connection part is arranged at one end of the inlet reducer, and an inlet flange is arranged at the other end. The pressure ring is fastened with bolts through the first flange connection part and the second flange connection part of the inlet reducer, and a sterilization plate assembly is arranged between the thrust ring and the pressure ring.

[0006] Furthermore, the pressure ring includes a pressure ring body and a connecting ring connected to the pressure ring body, the connecting ring is arranged between the first flange connecting part and the second flange connecting part and is fastened by bolts, and rubber gaskets are arranged on both sides of the connecting ring for sealing; the pressure ring body is arranged on the inner side of the second end of the sterilization reactor body.

[0007] Furthermore, corresponding slots are provided on the thrust ring and the pressure ring body for fixing the sterilization plate assembly, and the sterilization plate assembly is arranged in the corresponding slots.

[0008] Furthermore, the size of the slots is 3-7 mm, and the slot spacing is 8-15 cm, which is used as a circulation channel for activated sludge.

[0009] Furthermore, the sterilization plate assembly is arranged in the sterilization reactor body, the thickness of the sterilization plate assembly is 4-6 mm, the length is consistent with the inner tube length of the sterilization reactor body, and the width is arranged in steps according to the inner diameter of the sterilization reactor body.

[0010] Furthermore, the outlet flange and the inlet flange are respectively used to be connected 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.

[0011] 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.

[0012] Furthermore, the thrust ring is integrally connected to the sterilization reactor body by welding, and the outlet reducer is integrally connected to the sterilization reactor body by welding.

[0013] Furthermore, a pressure gauge or a differential pressure transmitter is provided at the inlet and outlet of the sterilization reactor body to detect the pressure difference change in the sterilization reactor body.

[0014] The technical solution of the present invention has the following beneficial effects: 1. The detachable activated sludge sterilization reactor of the present invention can be applied to various sludge reduction systems that adopt the activated sludge sterilization and inactivation mechanism, and can give full play to the sterilization plate components made of alloy materials to achieve the inactivation and sterilization effect, thereby achieving a good sludge reduction effect.

[0015] 2. The sterilization reactor of the present invention utilizes thrust rings and clamping rings at both ends to fix the sterilization plate assembly. The sterilization plate assembly can be conveniently disassembled and cleaned by disassembling the reducer and reducer at the inlet end, thereby ensuring the offline cleaning effect of the assembly and achieving long-term and efficient use.

[0016] 3. The thrust ring, the pressure ring and the sterilization plate assembly of the present invention are arranged alternately to achieve turbulence of the incoming water sludge, enhance the contact reaction efficiency and achieve better sterilization and wall-breaking effect.

[0017] 4. The thickness of the sterilization plate assembly and the matching card slot of the present invention can be freely adjusted to meet the actual needs of treatment systems of different scales. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the detachable activated sludge sterilization reactor of the present invention; Figure 2 It is a side view of the first end of the sterilization reactor body of the present invention; Figure 3 It is a side view of the second end of the sterilization reactor body of the present invention; In the figure: 1. Sterilization reactor body; 2. Thrust ring; 3. Outlet reducer; 4. Outlet flange; 5. First flange connection; 6. Pressing ring; 61. Pressing ring body; 62. Connecting ring; 7. Inlet reducer; 8. Second flange connection; 9. Inlet flange; 10. Sterilization plate assembly. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] like Figure 1-Figure 3 As shown, a detachable activated sludge sterilization reactor comprises a sterilization reactor body 1, which is a cylindrical structure. A thrust ring 2 is arranged on the inner side of the first end of the sterilization reactor body 1 and an outlet reducer 3 is arranged to be connected with the first end port of the sterilization reactor body 1. An outlet flange 4 is arranged at the end of the outlet reducer 3. A first flange connection part 5, a pressure ring 6 and an inlet reducer 7 are arranged at the second end of the sterilization reactor body 1. A second flange connection part 8 is arranged at one end of the inlet reducer 7, and an inlet flange 9 is arranged at the other end; the pressure ring 6 is fastened with bolts through the first flange connection part 5 and the second flange connection part 8 of the inlet reducer 7, and a sterilization plate assembly 10 is arranged between the thrust ring 2 and the pressure ring 6.

[0021] The pressure ring 6 with a slot is arranged on the inlet side of the sterilization reactor body 1, and 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 arranged between the first flange connection part 5 and the second flange connection part 8 and is fastened by bolts. Rubber gaskets are arranged on both sides of the connecting ring 62 for sealing; the pressure ring body 61 is arranged on the inner side of the second end of the sterilization reactor body 1.

[0022] 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 arranged in the corresponding slots.

[0023] The outlet flange 4 and the inlet flange 9 are respectively used to connect with the pipeline to be installed. The sterilization reactor body 1 is cylindrical, and its diameter is one gear larger than the diameter of the pipeline at the installation position to ensure sufficient flow area. The two ends are respectively connected to the pipeline to be installed after the diameter is reduced through the inlet reducer 7 and the outlet reducer 3. The length of the sterilization reactor body 1 is designed according to the amount of water to be treated, usually between 900-2500mm.

[0024] The thrust ring 2 with the slots is integrally welded with the sterilization reactor body 1, and then the outlet reducer 3 and the outlet flange 4 are welded in sequence. The slots with a size of 3-7 mm are evenly distributed on the thrust ring 2, which are used to fix the sterilization plate assembly 10 made of alloy material; the slot spacing is 8-15 cm, which is used for the circulation channel of activated sludge.

[0025] The pressing ring body 61 has evenly distributed grooves of 3-7 mm for pressing the sterilization plate assembly 10 made of alloy material; the spacing between the grooves is 8-15 cm, and the grooves are arranged in a mirror image with the thrust ring 2 .

[0026] The sterilization plate assembly 10 made of the alloy material is arranged in the sterilization reactor body 1. The thickness of the sterilization plate assembly 10 is 4-6 mm, the length is consistent with the inner tube 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.

[0027] The inlet and outlet of the sterilization reactor body 1 are provided with pressure gauges or differential pressure transmitters. By detecting the pressure difference change of the sterilization reactor body 1, the equipment fouling condition is judged, the inlet reducer 7 is disassembled in time, and the sterilization plate assembly 10 is cleaned offline.

[0028] The detachable activated sludge sterilization reactor is suitable for various treatment processes that achieve sludge reduction through microbial sterilization and inactivation. Example 1

[0029] A municipal sewage treatment plant has a designed daily treatment capacity of 10,000 m³. 2 O process, the designed effluent meets the Class A standard of "Pollutant Discharge Standard for Urban Wastewater Treatment Plants" (GB 18918-2002). Figure 1 Schematic diagram of the structure of a detachable activated sludge sterilization reactor for this project.

[0030] It includes: a sterilization reactor body 1, a thrust ring 2, an outlet reducer 3, an outlet flange 4, a first flange connection part 5, a pressure ring 6, an inlet reducer 7, a second flange connection part 8, an inlet flange 9, and a sterilization plate assembly 10.

[0031] The diameter of the sludge return pipe of the sewage treatment plant is DN300mm, the diameter of the designed activated sludge sterilization reactor body 1 is DN350mm, and the total length is 2000mm. The sterilization plate assembly 10 made of alloy material has a thickness of 5mm, and the slot width of the thrust ring 2 with the slot and the pressure ring 6 with the slot is 6mm, and the slot interval is 10mm.

[0032] Under normal operation of the system, the activated sludge enters the sterilization reactor body 1 from the inlet reducer 7 through the sludge return pump, and the surface microorganisms of the activated sludge are inactivated and broken by the sterilization plate assembly 10 made of alloy material, and the effluent flows back to the water inlet of the sewage biochemical system through the outlet reducer 3 to achieve the reduction of the activated sludge. After running for a period of time, by observing the pressure gauges set at the inlet and outlet of the sterilization reactor body 1, the pressure difference of the equipment is calculated to determine the internal blockage of the sterilization reactor body 1, the inlet reducer 7 is removed by bolts, and then the pressure ring 6 with the card slot is removed, and the sterilization plate assembly 10 is removed in turn, and the sterilization plate assembly 10 is flushed and cleaned with a high-pressure water gun. After rinsing, reinstall them in turn. Example 2

[0033] The designed daily treatment capacity of a municipal sewage treatment plant is 30,000 m³. The system adopts oxidation ditch technology, and the designed effluent meets the Class A standard of the Pollutant Discharge Standard for Urban Sewage Treatment Plants (GB 18918-2002). Figure 1 Schematic diagram of the structure of a detachable activated sludge sterilization reactor for this project.

[0034] It includes: a sterilization reactor body 1, a thrust ring 2, an outlet reducer 3, an outlet flange 4, a first flange connection part 5, a pressure ring 6, an inlet reducer 7, a second flange connection part 8, an inlet flange 9, and a sterilization plate assembly 10.

[0035] The diameter of the outlet branch pipe of the sludge return pump of the sewage treatment plant is DN350mm, the diameter of the main pipe is DN500, the diameter of the activated sludge sterilization reactor body 1 is designed to be DN400mm, the total length is 2400mm, and there are 2 units in total, which are arranged on the outlet branch pipe of the sludge return pump. The thickness of the sterilization plate assembly 10 made of alloy material is 6mm, the slot width on the thrust ring 2 with slot and the pressure ring 6 with slot is 7mm, and the slot interval is 12mm.

[0036] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

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

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

3. A 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); the sterilization plate assembly (10) is arranged in the corresponding slots.

4. A detachable activated sludge sterilization reactor according to claim 3, characterized in that: The size of the slot is 3-7 mm, the slot spacing is 8-15 cm, and it is used as a circulation channel for activated sludge.

5. The detachable activated sludge sterilization reactor according to claim 3, characterized in that: The sterilization plate assembly (10) is arranged in the sterilization reactor body (1); the thickness of the sterilization plate assembly (10) is 4-6 mm, the length is consistent with the length of the inner tube 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 the inlet flange (9) are respectively used to be connected to a 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. The 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. The detachable activated sludge sterilization reactor according to claim 1, characterized in that: The thrust ring (2) is integrally welded and connected to the sterilization reactor body (1), and the outlet reducer (3) is integrally welded and connected to the sterilization reactor body (1).

9. The detachable activated sludge sterilization reactor according to claim 1, characterized in that: The inlet and outlet of the sterilization reactor body (1) are provided with a pressure gauge or a differential pressure transmitter for detecting the change in the differential pressure within the sterilization reactor body (1).

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