Wastewater treatment sequencing batch reaction tank

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment sequencing batch reaction tank, which comprises an aeration pipe and a plurality of groups of biological fillers, and further comprises a moving mechanism and an elastic belt, the two ends of the elastic belt are arranged on the two sides in the reaction tank, and the plurality of groups of biological fillers are arranged on the elastic belt at intervals; the moving mechanism can drive the aeration pipe to move in the length direction of the elastic belt, and an exhaust port of the aeration pipe is inclined upwards and faces the corresponding biological filler; the moving mechanism drives the aeration pipe to reciprocate, so that the aeration effect is improved, the biological filler is in full contact with sewage in the reaction tank, the degradation effect is improved, and the biological filler does not need to be densely arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, and specifically to a wastewater treatment batch reaction tank. Background Art

[0002] The wastewater generated during the production process of circuit boards usually contains high concentrations of organic pollutants, heavy metal ions, acid-base substances and other harmful chemicals, which can be treated by sequencing batch reactors; sequencing batch reactors have functions such as primary sedimentation, biodegradation, and secondary sedimentation, and are suitable for occasions with insufficient construction space, intermittent discharge and large flow changes.

[0003] In order to form a biofilm, an existing sequencing batch reactor generally sets a fixed filler rack in the tank, fixes multiple groups of biological fillers on the filler rack, increases the attachment area of ​​microorganisms, promotes the formation of biofilm, and provides oxygen through aeration pipes so that microorganisms can degrade sewage, thereby improving sewage treatment efficiency. However, the position of the above-mentioned biological fillers is fixed. In order to make the sewage in various areas of the tank contact with the biological fillers, it is necessary to densely lay multiple groups of biological fillers in the tank. In order to avoid clogging of the biological fillers and excessive growth of biofilm, frequent maintenance is required, which leads to an increase in the maintenance cost of the biological fillers. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a wastewater treatment sequencing batch reaction tank which has low cost and can ensure degradation effect.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A wastewater treatment sequencing batch reaction tank comprises an aeration pipe and a plurality of groups of biological fillers, and also comprises a moving mechanism and an elastic belt, wherein the two ends of the elastic belt are arranged on both sides in the reaction tank, and the plurality of groups of biological fillers are arranged on the elastic belt at intervals, and the moving mechanism can drive the aeration pipe to move along the length direction of the elastic belt, and the exhaust port of the aeration pipe is inclined upward and toward the corresponding biological filler.

[0007] Working principle: When the aeration pipe is working, the moving mechanism drives the aeration pipe to move along the length direction of the reaction tank, discharges oxygen evenly into the reaction tank, and makes the sewage in the tank flow. The exhaust port exhausts obliquely upward. When the exhaust port is aimed at the biological filler, a certain lateral force is generated on the biological filler, causing the biological filler to move along the width direction of the reaction tank, stretching the elastic band to a certain extent. When the exhaust port moves to the vicinity of the next biological filler, the previous biological filler is reset due to the elasticity of the elastic band, and the next biological filler begins to move. The moving mechanism drives the aeration pipe to move back and forth, so that the biological filler is fully in contact with the sewage in the reaction tank, thereby improving the degradation effect.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] The aeration pipe is driven to move back and forth by the moving mechanism, thereby improving the aeration effect, allowing the biological filler to fully contact the sewage in the reaction tank, improving the degradation effect, and eliminating the need to densely arrange the biological filler.

[0010] As a preferred embodiment of the utility model, the moving mechanism includes a driving motor and a first guide rail, the driving motor is slidably mounted on the first guide rail, a gear is mounted on the output shaft of the driving motor, a rack meshing with the gear is fixedly connected to one side of the first guide rail, a fixed sleeve is fixedly connected to the driving motor housing, and the fixed sleeve is arranged on the aeration pipe. When the driving motor is working, the driving motor, the fixed sleeve and the aeration pipe move along the length direction of the elastic belt.

[0011] Beneficial effect: By setting a driving motor to drive the gear to rotate, the gear is meshed with the rack, so that the driving motor moves along the first guide rail, thereby driving the fixed sleeve to move, thereby realizing the reciprocating movement of the aeration pipe.

[0012] As a preferred embodiment of the utility model, there are multiple elastic bands, and the multiple elastic bands are arranged at intervals along the height direction of the reaction tank. The exhaust ports of the aeration pipe are arranged in multiple numbers along the height direction of the reaction tank.

[0013] Beneficial effect: By arranging multiple rows of biological fillers and multiple exhaust holes along the height direction, it is suitable for reaction tanks with deeper depths.

[0014] As a preferred embodiment of the utility model, second guide rails are vertically arranged on both sides of the inner wall of the reaction pool, and floating blocks are arranged at both ends of the elastic band, and the floating blocks are slidably installed in the second guide rails.

[0015] Beneficial effect: Since precipitation will occur during the degradation process, if the biological filler is always at the bottom, when the liquid level increases, the suspended matter will be above the biological filler, and the degradation effect will become worse. By setting the floating block and the second guide rail, the floating block changes height along the second guide rail when the liquid level changes, thereby driving the elastic belt and the biological filler to float up and down, so that the biological filler can follow the changes in the sewage liquid level, which is conducive to contact with the suspended matter.

[0016] As a preferred embodiment of the utility model, the aeration pipe includes an inner tube body and an outer tube body, the moving mechanism drives the inner tube body to move, the outer tube body is sleeved on the inner tube body, a floating ring is fixedly connected to the upper end of the outer tube body, a bending portion is provided at the bottom of the outer tube body, and the exhaust port is located at the bending portion.

[0017] Beneficial effect: By setting a floating block, the liquid level change of sewage in the pool can be followed. The floating block can drive the outer tube body to move along the inner tube body, thereby adjusting the position of the exhaust port so that the exhaust port can adapt to the position of the floating biological filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a batch reaction tank for wastewater treatment of the utility model;

[0019] Figure 2 This utility model Figure 1 A magnified view of the structure at A.

[0020] The reference numerals include: aeration pipe 1, exhaust port 11, inner tube body 12, outer tube body 13, floating ring 14, biological filler 2, moving mechanism 3, driving motor 31, first guide rail 32, gear 33, rack 34, fixing sleeve 35, elastic band 4, second guide rail 41, floating block 42. DETAILED DESCRIPTION

[0021] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0022] In the description of the present application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] See also Figure 1 and Figure 2 As shown, this embodiment discloses a wastewater treatment batch reaction tank, including an aeration tube 1, multiple groups of biological fillers 2, a moving mechanism 3 and an elastic belt 4, wherein the two ends of the elastic belt 4 are arranged on both sides of the reaction tank, and the multiple groups of biological fillers 2 are arranged on the elastic belt 4 at intervals, and the moving mechanism 3 can drive the aeration tube 1 to move along the length direction of the elastic belt 4, and the exhaust port 11 of the aeration tube 1 is inclined upward and toward the corresponding biological filler 2; the aeration tube 1 is driven to move back and forth by the moving mechanism 3, thereby improving the aeration effect, so that the biological filler 2 is fully in contact with the sewage in the reaction tank, improving the degradation effect, and there is no need to densely arrange the biological filler 2.

[0024] In this embodiment, the biological filler 2 is in a columnar shape, and in other embodiments, it may also be in a spherical shape.

[0025] The moving mechanism 3 includes a driving motor 31 and a first guide rail 32. The driving motor 31 is slidably mounted on the first guide rail 32. A gear 33 is mounted on the output shaft of the driving motor 31. A rack 34 meshing with the gear 33 is fixedly connected to one side of the first guide rail 32. A fixing sleeve 35 is fixedly connected to the outer shell of the driving motor 31. The fixing sleeve 35 is sleeved on the aeration tube 1. When the driving motor 31 is working, the driving motor 31, the fixing sleeve 35 and the aeration tube 1 move along the length direction of the elastic belt 4. The driving motor 31 is arranged to drive the gear 33 to rotate. Since the gear 33 is meshed with the rack 34, the driving motor 31 moves along the first guide rail 32, thereby driving the fixing sleeve 35 to move, thereby realizing the reciprocating movement of the aeration tube 1.

[0026] In other embodiments, there are multiple elastic bands 4, and the multiple elastic bands 4 are arranged at intervals along the height direction of the reaction tank. The exhaust ports 11 of the aeration pipe 1 are arranged in multiples along the height direction of the reaction tank. By arranging multiple rows of biological fillers 2 and multiple exhaust holes along the height direction, it is suitable for reaction tanks with deeper depths.

[0027] Among them, second guide rails 41 are vertically provided on both sides of the inner wall of the reaction tank, and floating blocks 42 are provided at both ends of the elastic belt 4, and the floating blocks 42 are slidably installed in the second guide rails 41; since precipitation will be generated during the degradation process, if the biological filler 2 is always at the bottom position, when the liquid level increases, the suspended matter is above the biological filler 2, and the degradation effect will be worse. By setting the floating block 42 and the second guide rail 41, the floating block 42 changes its height along the second guide rail 41 when the liquid level changes, thereby driving the elastic belt 4 and the biological filler 2 to float up and down, so that the biological filler 2 can follow the changes in the sewage liquid level, which is conducive to contact with the suspended matter.

[0028] The aeration pipe 1 comprises an inner tube body 12 and an outer tube body 13, the moving mechanism 3 drives the inner tube body 12 to move, the outer tube body 13 is sleeved on the inner tube body 12, the upper end of the outer tube body 13 is fixedly connected with a floating ring 14, the bottom of the outer tube body 13 is provided with a bending portion, and the exhaust port 11 is located at the bending portion; by setting a floating block 42, it can follow the liquid level change of the sewage in the pool, and the floating block 42 can drive the outer tube body 13 to move along the inner tube body 12, thereby adjusting the position of the exhaust port 11, so that the exhaust port 11 can adapt to the position of the floating biological filler 2.

[0029] Specific use (working) process:

[0030] When the aeration tube 1 is working, the driving motor 31 drives the gear 33 to rotate. Since the gear 33 is meshed with the rack 34, the driving motor 31 moves along the first guide rail 32, thereby driving the fixing sleeve 35 to move, and realizing the reciprocating movement of the aeration tube 1.

[0031] The moving mechanism 3 drives the aeration pipe 1 to move along the length direction of the reaction tank, discharges oxygen evenly into the reaction tank, and makes the sewage in the tank flow. The exhaust port 11 exhausts air obliquely upward. When the exhaust port 11 is aligned with the biological filler 2, a certain lateral force is generated on the biological filler 2, so that the biological filler 2 moves along the width direction of the reaction tank, stretching the elastic band 4 to a certain extent. When the exhaust port 11 moves to the vicinity of the next biological filler 2, the previous biological filler 2 is reset due to the elasticity of the elastic band 4, and the next biological filler 2 starts to move. The moving mechanism 3 drives the aeration pipe 1 to move back and forth, so that the biological filler 2 is fully in contact with the sewage in the reaction tank, thereby improving the degradation effect.

[0032] When the liquid level in the reaction tank changes, the floating block 42 changes height along the second guide rail 41, thereby driving the elastic belt 4 and the biological filler 2 to float up and down, so that the biological filler 2 can follow the changes in the sewage liquid level, which is conducive to contact with suspended matter; the floating block 42 can follow the changes in the liquid level of the sewage in the tank, and the floating block 42 can drive the outer tube body 13 to move along the inner tube body 12, thereby adjusting the position of the exhaust port 11, so that the exhaust port 11 can adapt to the position of the floating biological filler 2.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A wastewater treatment sequencing batch reactor, comprising an aeration tube and multiple groups of biological fillers, characterized in that: It also includes a moving mechanism and an elastic belt, the two ends of the elastic belt are arranged on both sides of the reaction tank, and multiple groups of biological fillers are arranged on the elastic belt at intervals. The moving mechanism can drive the aeration pipe to move along the length direction of the elastic belt, and the exhaust port of the aeration pipe is inclined upward and toward the corresponding biological filler; the moving mechanism includes a driving motor and a first guide rail, the driving motor is slidably installed on the first guide rail, a gear is installed on the output shaft of the driving motor, and a rack meshing with the gear is fixedly connected to one side of the first guide rail, a fixing sleeve is fixedly connected to the driving motor housing, and the fixing sleeve is arranged on the aeration pipe. When the driving motor is working, the driving motor, the fixing sleeve and the aeration pipe move along the length direction of the elastic belt.

2. The wastewater treatment sequencing batch reaction tank according to claim 1, characterized in that: There are multiple elastic bands, and the multiple elastic bands are arranged at intervals along the height direction of the reaction tank. There are multiple exhaust ports of the aeration pipe along the height direction of the reaction tank.

3. The wastewater treatment sequencing batch reaction tank according to claim 1, characterized in that: Second guide rails are vertically arranged on both sides of the inner wall of the reaction pool, and floating blocks are arranged at both ends of the elastic band. The floating blocks are slidably installed in the second guide rails.

4. The wastewater treatment sequencing batch reaction tank according to claim 3, characterized in that: The aeration pipe comprises an inner tube body and an outer tube body, the moving mechanism drives the inner tube body to move, the outer tube body is sleeved on the inner tube body, a floating ring is fixedly connected to the upper end of the outer tube body, a bending part is provided at the bottom of the outer tube body, and the exhaust port is located at the bending part.

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