Hydrolysis reactor for kitchen garbage wastewater treatment
By introducing a mixing device of spiral belts and air holes into the hydrolysis reactor, the problem of low reaction rate caused by sludge deposition is solved, the full mixing of sludge and sewage and the supply of microorganisms is achieved, and the efficiency of wastewater treatment is improved.
Patent Information
- Application Number
- CN202422196167.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Sludge accumulates at the bottom in existing hydrolysis reactors, resulting in microorganisms not being able to fully participate in the reaction, insufficient mixing, and low reaction rate.
A mixing device including a spiral belt and a stomata is designed. The sludge is driven by a motor to drive the sludge to rotate, and oxygen is provided through the stomata to promote microbial growth and metabolism.
It effectively avoids sludge deposition, improves the mixing effect and reaction rate, promotes the growth and metabolism of microorganisms, and improves the efficiency of wastewater treatment.
Smart Images
Figure CN223292363U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater treatment, in particular to a hydrolysis reactor for treating kitchen waste wastewater. Background Art
[0002] During wastewater treatment, hydrolysis reactors utilize large numbers of hydrolytic and acidifying bacteria to hydrolyze insoluble organic matter into soluble organic matter, converting difficult-to-biodegrade macromolecules into easily biodegradable small molecules, thereby improving the biodegradability of wastewater. Hydrolysis can reduce waste generation, minimize environmental impact, and conserve energy, making it a commonly used wastewater treatment method.
[0003] In the hydrolysis reactor, sufficient mixing is required to allow the microorganisms in the sludge to have extensive contact with the organic matter in the sewage to provide more reaction sites and accelerate the decomposition and conversion of the organic matter. Aeration is also required to provide oxygen to the microorganisms to promote the growth and metabolism of aerobic microorganisms. However, in existing hydrolysis reactors, sludge accumulates at the bottom, resulting in the microorganisms failing to fully participate in the hydrolysis reaction, and the mixing mechanism fails to completely mix the sewage, sludge and oxygen, resulting in a low hydrolysis reaction rate. Utility Model Content
[0004] The purpose of the utility model is to provide a hydrolysis reactor for treating kitchen waste wastewater, so as to solve the above-mentioned deficiencies in the prior art.
[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0006] A hydrolysis reactor for treating kitchen waste water comprises a shell, wherein a partition mesh is provided inside the shell, wherein the partition mesh and the upper area of the shell form a sedimentation area, and the partition mesh and the lower area of the shell form a mixing area, wherein a mixing device is provided in the mixing area; the mixing device comprises a rotating shaft rotatably connected to the bottom wall of the shell, the rotating shaft is connected to a spiral belt via a connecting rod, the spiral belt is spirally arranged in a vertical direction, the interior of the rotating shaft is hollow, the upper side of the rotating shaft passes through the partition mesh and the upper wall of the shell, and is connected to an external ventilation pipe, an air hole is opened on the rotating shaft, a motor is fixedly connected to the bottom wall of the shell, and the motor output shaft is fixedly connected to the rotating shaft.
[0007] Furthermore, a propeller blade is provided between the spiral belt and the bottom wall of the shell, and the propeller blade is fixedly provided on the rotating shaft.
[0008] Furthermore, the spiral ribbon includes a first spiral ribbon and a second spiral ribbon, the end of the first spiral ribbon and the end of the second spiral ribbon are fixedly connected, and the spiral angle of the first spiral ribbon is smaller than the spiral angle of the second spiral ribbon.
[0009] Furthermore, the first spiral belt is arranged between the second spiral belt and the bottom wall of the shell.
[0010] Furthermore, it also includes an inlet and outlet water assembly, which includes a water inlet pipe fixedly connected to the shell, the water inlet pipe extends into the shell from one side of the shell, and is connected to the water distribution pipe, the water distribution pipe is arranged in a ring shape, and multiple groups of water outlets are opened on the water distribution pipe. The shell is also provided with a water outlet pipe, and the water outlet pipe is arranged on the upper side of the sedimentation area.
[0011] Furthermore, a group of the water outlets includes two horizontal holes and two inclined holes, the two horizontal holes and the two inclined holes are symmetrically arranged, the horizontal holes are arranged close to the bottom wall of the shell, and the inclined holes face the bottom of the shell.
[0012] Furthermore, the plurality of groups of water outlets are arranged in an equidistant distribution.
[0013] In the above technical solution, the utility model provides a hydrolysis reactor for treating kitchen waste water, which has the following beneficial effects:
[0014] 1. Through the setting of the mixing device, the motor drives the spiral belt to rotate through the rotating shaft, so that the spiral belt rotates. The rotation of the spiral belt forms adsorption on the bottom of the shell, so that the sludge moves upward and is fully mixed with the sewage, avoiding the problem of sludge settling at the bottom of the mixing area and reducing the reaction rate.
[0015] 2. Air is introduced into the rotating shaft through the air holes and the ventilation pipe, and flows out through the air holes on the rotating shaft, providing oxygen for microorganisms to accelerate their growth and metabolism, thereby further enhancing the hydrolysis reaction.
[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
[0017] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;
[0020] Figure 2A schematic diagram of the overall cross-sectional structure provided for an embodiment of the utility model;
[0021] Figure 3 A schematic diagram of a spiral belt structure provided by an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the water distribution pipe structure provided in an embodiment of the utility model.
[0023] Description of reference numerals:
[0024] 1. Shell; 11. Partitioning mesh plate; 12. Sedimentation zone; 13. Mixing zone; 21. Spiral ribbon; 22. Air hole; 23. Motor; 24. Propeller blade; 25. Rotating shaft; 26. Connecting rod; 31. First spiral ribbon; 32. Second spiral ribbon; 41. Water inlet pipe; 42. Water distribution pipe; 43. Horizontal hole; 44. Inclined hole. DETAILED DESCRIPTION
[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0026] See also Figure 1-4 A hydrolysis reactor for treating kitchen waste water comprises a housing 1, wherein a partitioning mesh plate 11 is provided inside the housing 1. The partitioning mesh plate 11 and the upper area of the housing 1 form a settling zone 12, and the partitioning mesh plate 11 and the lower area of the housing 1 form a mixing zone 13. A mixing device is provided in the mixing zone 13; the mixing device comprises a rotating shaft 25 rotatably connected to the bottom wall of the housing 1, a spiral belt 21 is connected to the rotating shaft 25 via a connecting rod 26, and the spiral belt 21 is spirally arranged in a vertical direction. The interior of the rotating shaft 25 is hollow, and the upper side of the rotating shaft 25 passes through the partitioning mesh plate 11 and the upper wall of the housing 1 and is connected to an external ventilation pipe. The rotating shaft 25 has an air hole 22, and a motor 23 is fixedly connected to the bottom wall of the housing 1, and the output shaft of the motor 23 is fixedly connected to the rotating shaft 25. The ventilation pipe can be connected to the rotating shaft 25 via a rotary joint.
[0027] Through the provided mixing device, motor 23 drives spiral belt 21 via shaft 25, causing spiral belt 21 to rotate. The rotation of spiral belt 21 forms an adsorption on the bottom of housing 1, causing sludge to move upward and be fully mixed with the sewage. This prevents sludge in mixing zone 13 from settling at the bottom and reducing the reaction rate. Air is introduced into shaft 25 through air holes 22 provided by the ventilation pipe and flows out through the air holes 22 on shaft 25, providing oxygen to the microorganisms, accelerating their growth and metabolism, thereby further enhancing the hydrolysis reaction.
[0028] Furthermore, a propeller blade 24 is provided between the spiral belt 21 and the bottom wall of the housing 1, and the propeller blade 24 is fixedly provided on the rotating shaft 25. The propeller blade 24 has a twisted blade shape, and the propeller blade 24 can generate a strong shear force and a local stirring effect, thereby facilitating the dispersion of suspended sludge, so as to further enhance the mixing effect with the sewage.
[0029] Furthermore, the spiral ribbon 21 includes a first spiral ribbon 31 and a second spiral ribbon 32. The ends of the first spiral ribbon 31 and the second spiral ribbon 32 are fixedly connected, and the helix angle of the first spiral ribbon 31 is smaller than the helix angle of the second spiral ribbon 32. The first spiral ribbon 31 is disposed between the second spiral ribbon 32 and the bottom wall of the housing 1. The air hole 22 is disposed at the rotating shaft 25 corresponding to the second spiral ribbon 32.
[0030] The first spiral ribbon 31 with a smaller spiral lead angle has a relatively gentle inclination of its spiral line, so that when the spiral ribbon rotates, it mainly generates a larger axial driving force, which promotes the sludge and sewage to circulate more strongly up and down along the direction of the rotating shaft 25 in the mixing zone 13. The second spiral ribbon 32 with a larger spiral lead angle mainly generates a larger radial driving force, which makes the sludge and sewage move from the rotating shaft 25 toward the inner wall of the shell 1 in the mixing zone 13. On the one hand, it increases the contact between the sludge and the air, and on the other hand, it forms a circulation in the mixing zone 13, thereby forming sufficient mixing.
[0031] Furthermore, it also includes an inlet and outlet assembly, which includes an inlet pipe 41 fixedly connected to the shell 1. The inlet pipe 41 extends from one side of the shell 1 into the shell 1 and is connected to a water distribution pipe 42. The water distribution pipe 42 is arranged in an annular shape and has multiple groups of water outlets. The shell 1 is also provided with an outlet pipe, which is arranged on the upper side of the sedimentation area 12. The reacted sewage enters the sedimentation area 12 through the partition mesh 11 and flows out through the outlet pipe.
[0032] Furthermore, a set of the water outlets includes two horizontal holes 43 and two inclined holes 44. The two horizontal holes 43 and the two inclined holes 44 are symmetrically arranged. The horizontal holes 43 are arranged near the bottom wall of the shell 1, and the inclined holes 44 face the bottom of the shell 1. The horizontal holes 43 and the inclined holes 44 allow the sewage to flow out and flush the bottom wall of the shell 1, thereby reducing the accumulation of sewage at the bottom.
[0033] Furthermore, the plurality of groups of water outlets are arranged in an equidistant distribution.
[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A hydrolysis reactor for treating kitchen waste water, comprising a housing (1), wherein a partitioning mesh plate (11) is provided inside the housing (1), wherein the partitioning mesh plate (11) and an upper area of the housing (1) form a sedimentation zone (12), and the partitioning mesh plate (11) and a lower area of the housing (1) form a mixing zone (13), characterized in that: A mixing device is provided in the mixing zone (13); The mixing device comprises a rotating shaft (25) rotatably connected to the bottom wall of the shell (1); a spiral belt (21) is connected to the rotating shaft (25) via a connecting rod (26); the spiral belt (21) is arranged in a spiral in the vertical direction; the interior of the rotating shaft (25) is hollow; the upper side of the rotating shaft (25) passes through a partition mesh plate (11) and the upper wall of the shell (1) and is connected to an external ventilation pipe; an air hole (22) is opened on the rotating shaft (25); a motor (23) is fixedly connected to the bottom wall of the shell (1); and the output shaft of the motor (23) is fixedly connected to the rotating shaft (25).
2. A hydrolysis reactor for treating kitchen waste wastewater according to claim 1, characterized in that: A propeller blade (24) is provided between the spiral belt (21) and the bottom wall of the housing (1), and the propeller blade (24) is fixedly provided on the rotating shaft (25).
3. A hydrolysis reactor for treating kitchen waste wastewater according to claim 1, characterized in that: The spiral belt (21) comprises a first spiral belt (31) and a second spiral belt (32), the end of the first spiral belt (31) and the end of the second spiral belt (32) are fixedly connected, and the spiral angle of the first spiral belt (31) is smaller than the spiral angle of the second spiral belt (32).
4. A hydrolysis reactor for treating kitchen waste wastewater according to claim 3, characterized in that: The first spiral belt (31) is arranged between the second spiral belt (32) and the bottom wall of the housing (1).
5. The hydrolysis reactor for treating kitchen waste water according to claim 1, characterized in that: The invention also includes a water inlet and outlet assembly, wherein the water inlet and outlet assembly includes a water inlet pipe (41) fixedly connected to the shell (1), the water inlet pipe (41) extends from one side of the shell (1) into the shell (1) and is connected to a water distribution pipe (42), the water distribution pipe (42) is arranged in an annular shape, and a plurality of water outlets are provided on the water distribution pipe (42). The shell (1) is also provided with a water outlet pipe, and the water outlet pipe is arranged on the upper side of the sedimentation area (12).
6. A hydrolysis reactor for treating kitchen waste wastewater according to claim 5, characterized in that: A group of water outlets comprises two horizontal holes (43) and two inclined holes (44), the two horizontal holes (43) and the two inclined holes (44) are symmetrically arranged, the horizontal holes (43) are arranged close to the bottom wall of the shell (1), and the inclined holes (44) face the bottom of the shell (1).
7. The hydrolysis reactor for treating kitchen waste water according to claim 1, characterized in that: The plurality of groups of water outlets are arranged in an equidistant distribution.