Contact oxidation pond

Abstract

A contact oxidation pond comprises an oxidation pond body (50), a group of filler barrel supports (51), an aeration pipeline (52) and a water inlet pipeline (53), a water outlet channel (54) is arranged at the top of the oxidation pond body (50), a water outlet is formed in one side of the water outlet channel (54), a sludge outlet is formed in the bottom of the oxidation pond body (50), and barrel supports (55) are arranged on the inner wall of the upper portion of the oxidation pond body (50); the device has the advantages that the biofilm filler is fast to replace, a small amount of biofilm filler at a corresponding position can be taken out as required, and the reaction speed of the contact oxidation pond is fast.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment equipment, and particularly relates to a biological contact oxidation tank. Background Art

[0002] At present, one of the essences of the biological contact oxidation treatment technology is to fill the tank with packing materials. The aerated sewage submerges all the packing materials and flows through the packing materials at a certain flow rate. The packing materials are covered with biological membranes. The sewage comes into extensive contact with the biological membranes. Under the action of the metabolic functions of microorganisms on the biological membranes, the organic pollutants in the sewage are removed and the sewage is purified. Therefore, the biological contact oxidation treatment technology is also called "submerged biological filter". Another essence is to adopt the same aeration method as that of the aeration tank, install the aerator at the bottom of the tank, provide the oxygen required by microorganisms, and play a role in stirring and mixing. In this way, this technology is equivalent to filling the aeration tank with packing materials for microorganisms to inhabit, so it is also called "contact aeration method". The main feature of the biological contact oxidation method is to use packing materials with high porosity and large specific surface area immersed in water, and provide aerobic biological membranes on their surfaces for the attachment and growth of microorganisms. Because of its large surface area, a large amount of biomass can be attached. At the same time, because of its large porosity, the entry of substrates, the removal of metabolites, and the self-renewal and shedding of the biological membranes are all relatively smooth, so that the biological membranes can maintain high activity and relatively high biochemical reaction rates. It is difficult to replace the biological membrane packing materials in the existing contact oxidation tank. A large number of biological membrane packing materials need to be taken out at the same time for replacement. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a contact oxidation tank aiming at the above deficiencies.

[0004] The utility model includes an oxidation tank body, a group of packing bucket racks, an aeration pipeline and a water inlet pipeline.

[0005] A water outlet channel is arranged at the top of the oxidation tank body, a drain port is arranged on one side of the water outlet channel, a sludge discharge port is arranged at the bottom of the oxidation tank body, a bucket support is arranged on the inner wall of the upper part of the oxidation tank body, a group of packing bucket racks are sequentially arranged and installed in the bucket support, biological membrane packing materials are filled in the packing bucket racks, the water inlet pipeline is installed at the lower part of the packing bucket racks, and the aeration pipeline is installed between the packing bucket racks and the aeration pipeline.

[0006] The packing bucket rack includes a top plate, a bottom plate, a group of connecting rods and an upper pressing plate. The top plate is annular, multiple groups of water permeable holes are formed on the bottom plate, a group of connecting rods are annularly and evenly installed between the top plate and the bottom plate, and the upper pressing plate is installed on the top plate through bolts.

[0007] A guide rod is arranged inside the packing bucket rack, a limiting ring is arranged at the lower part of the guide rod, a bushing is arranged in the middle of the chassis, the bottom of the guide rod is located inside the bushing, the limiting ring abuts against the top end of the bushing, a group of packing mounting discs are arranged in sequence on the guide rod, the biological film packing is mounted on the packing mounting discs, a guide hole is opened in the middle of the upper pressing plate, and the top of the guide rod is located inside the guide hole.

[0008] The packing mounting disc is composed of an inner ring, an outer ring, a sleeve and a group of connecting skeletons. A group of connecting skeletons are annularly and evenly mounted on the outer wall of the sleeve with the sleeve as the center. A group of packing mounting grooves are annularly and evenly opened on the inner ring and the outer ring. The biological film packing is mounted in the packing mounting grooves. The inner ring and the outer ring are mounted on a group of connecting skeletons from the inside to the outside, and the sleeve is sleeved on the guide rod.

[0009] Fixing pieces are respectively arranged at both ends of the top disc, and the top disc is detachably mounted on the bucket body bracket through the fixing pieces.

[0010] The aeration pipeline is mounted in the oxidation tank body through the grid bracket, and the air inlet of the aeration pipeline is communicated with the output port of the air compressor through a pipeline.

[0011] A group of water outlet ports are arranged on the water inlet pipeline, and the water outlet ports are located at the lower part between two adjacent packing bucket racks.

[0012] Valves are respectively arranged at the drainage port of the water outlet channel, the sludge discharge port of the oxidation tank body, the aeration pipeline and the water inlet pipeline.

[0013] The advantages of the utility model are as follows: the replacement speed of the biological film packing is fast, a small amount of biological film packing at the corresponding position can be taken out as required, and the reaction speed of the contact oxidation tank is fast. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the utility model.

[0015] Figure 2 It is a schematic structural diagram of the packing bucket rack of the utility model mounted on the bucket body bracket.

[0016] Figure 3 It is a schematic structural diagram of the packing bucket rack of the utility model.

[0017] Figure 4 It is a schematic structural diagram of the utility model when the guide rod is put in.

[0018] Figure 5 It is a schematic structural diagram of the packing mounting disc of the utility model. Detailed Description of the Invention

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a variety of different configurations.

[0020] Therefore, the detailed description of the embodiments of the present invention provided in the drawings below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

[0022] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the inventive product is customarily placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" in the description of the present invention are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set" and "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] As shown in the drawings, the present utility model includes an oxidation tank body 50, a set of packing barrel racks 51, an aeration pipeline 52, and a water inlet pipeline 53.

[0025] At the top of the oxidation tank body 50, there is an effluent channel 54. On one side of the effluent channel 54, there is a drain port. At the bottom of the oxidation tank body 50, there is a sludge discharge port. On the upper inner wall of the oxidation tank body 50, there is a barrel support 55. A group of packing barrel racks 51 are arranged and installed in the barrel support 55 in sequence. The packing barrel racks 51 are filled with biological film packing. The inlet pipe 53 is installed at the lower part of the packing barrel racks 51, and the aeration pipe 52 is installed between the packing barrel racks 51 and the aeration pipe 52.

[0026] The packing barrel rack 51 includes a top plate 56, a bottom plate 57, a group of connecting rods 58 and an upper pressing plate 59. The top plate 56 is annular. Multiple groups of water permeable holes are formed on the bottom plate 57. A group of connecting rods 58 are annularly and evenly installed between the top plate 56 and the bottom plate 57. The upper pressing plate 59 is installed on the top plate 56 through bolts.

[0027] A guide rod 60 is arranged in the packing barrel rack 51. A limiting ring 61 is arranged at the lower part of the guide rod 60. A shaft sleeve is arranged in the middle of the bottom plate 57. The bottom of the guide rod 60 is located in the shaft sleeve. The limiting ring 61 abuts against the top end of the shaft sleeve. A group of packing installation discs 62 are arranged in sequence on the guide rod 60. The biological film packing is installed on the packing installation discs 62. A guide hole is formed in the middle of the upper pressing plate 59. The top of the guide rod 60 is located in the guide hole.

[0028] The packing installation disc 62 is composed of an inner ring 63, an outer ring 64, a sleeve 65 and a group of connecting skeletons 66. A group of connecting skeletons 66 are annularly and evenly installed on the outer wall of the sleeve 65 with the sleeve 65 as the center. A group of packing installation grooves are annularly and evenly formed on the inner ring 63 and the outer ring 64. The biological film packing is installed in the packing installation grooves. The inner ring 63 and the outer ring 64 are installed on a group of connecting skeletons 66 from inside to outside. The sleeve 65 is sleeved on the guide rod 60.

[0029] Fixing pieces 67 are respectively arranged at both ends of the top plate 56, and it is detachably installed on the barrel support 55 through the fixing pieces 67.

[0030] The aeration pipe 52 is installed in the oxidation tank body 50 through a grid support. The air inlet of the aeration pipe 52 is connected to the output port of the air compressor through a pipe.

[0031] A group of water outlet ports are arranged on the inlet pipe 53, and the water outlet ports are located at the lower part between two adjacent packing barrel racks 51.

[0032] Valves are respectively arranged at the drain port of the effluent channel 54, the sludge discharge port of the oxidation tank body 50, the aeration pipe 52 and the inlet pipe 53.

[0033] Example 1: The staff stuffed the flocculent biofilm filler into the filler installation groove, then wound it around the inner ring 63 and the outer ring 64. After the installation was completed, a set of filler installation discs 62 were successively sleeved on the guide rod 60. The staff grasped the top of the guide rod 60 and placed the guide rod 60 into the filler barrel rack 51. The bottom of the guide rod 60 was inserted into the shaft sleeve of the chassis 57, and the guide rod 60 remained vertical. The upper pressure plate 59 was installed on the top plate 56, and the top of the guide rod 60 was located in the guide hole of the upper pressure plate 59.

[0034] Sewage was injected into the oxidation tank body 50 through the water inlet pipe 53, and compressed air was input through the aeration pipe 52 to generate bubbles in the sewage, which played the role of stirring and oxygen supply. The organic pollutants in the sewage were adsorbed and disinfected by the biofilm attached to the biofilm filler. The purified sewage was located at the top of the oxidation tank body 50, overflowed into the water outlet channel 54, and then was transported to the next treatment station through the drain port. The generated sludge settled at the bottom of the oxidation tank body 50 and was output through the sludge discharge port. When it was necessary to replace the biofilm filler, the upper pressure plate 59 was removed from the top plate 56, and then the guide rod 60 was pulled out to replace the new biofilm filler.

Claims

1. An aerobic contact oxidation tank, characterized in that It includes an oxidation tank body (50), a group of packing bucket racks (51), an aeration pipeline (52) and a water inlet pipeline (53). At the top of the oxidation tank body (50), there is an effluent channel (54). On one side of the effluent channel (54), there is a drain port. At the bottom of the oxidation tank body (50), there is a sludge discharge port. On the upper inner wall of the oxidation tank body (50), there is a bucket support (55). A group of packing bucket racks (51) are sequentially arranged and installed in the bucket support (55). The packing bucket racks (51) are filled with biological film packing. The water inlet pipeline (53) is installed at the lower part of the packing bucket racks (51), and the aeration pipeline (52) is installed between the packing bucket racks (51) and the aeration pipeline (52).

2. The contact oxidation tank according to claim 1, characterized in that, The packing bucket rack (51) includes a top plate (56), a bottom plate (57), a group of connecting rods (58) and an upper pressing plate (59). The top plate (56) is annular. Multiple groups of water permeable holes are formed on the bottom plate (57). A group of connecting rods (58) are annularly and evenly installed between the top plate (56) and the bottom plate (57). The upper pressing plate (59) is installed on the top plate (56) through bolts.

3. The contact oxidation tank according to claim 2, characterized in that, A guide rod (60) is arranged in the packing bucket rack (51). A limit ring (61) is arranged at the lower part of the guide rod (60). A shaft sleeve is arranged in the middle of the bottom plate (57). The bottom of the guide rod (60) is located in the shaft sleeve. The limit ring (61) abuts against the top end of the shaft sleeve. A group of packing installation discs (62) are sequentially arranged on the guide rod (60). The biological film packing is installed on the packing installation discs (62). A guide hole is formed in the middle of the upper pressing plate (59). The top of the guide rod (60) is located in the guide hole.

4. A biological contact oxidation tank according to claim 3, characterized in that, The packing installation disc (62) is composed of an inner ring (63), an outer ring (64), a sleeve (65) and a group of connecting skeletons (66). A group of connecting skeletons (66) are annularly and evenly installed on the outer wall of the sleeve (65) with the sleeve (65) as the center. A group of packing installation grooves are annularly and evenly formed on the inner ring (63) and the outer ring (64). The biological film packing is installed in the packing installation grooves. The inner ring (63) and the outer ring (64) are installed on a group of connecting skeletons (66) from the inside to the outside. The sleeve (65) is sleeved on the guide rod (60).

5. A biological contact oxidation tank according to claim 4, wherein Fixing pieces (67) are respectively arranged at both ends of the top plate (56), and the packing bucket rack (51) is detachably installed on the bucket support (55) through the fixing pieces (67).

6. A contact oxidation tank according to claim 1, characterized in that, The aeration pipeline (52) is installed in the oxidation tank body (50) through a grid support. The air inlet of the aeration pipeline (52) is communicated with the output port of an air compressor through a pipeline.

7. The contact oxidation tank according to claim 1, characterized in that, A group of water outlet ports are arranged on the water inlet pipeline (53), and the water outlet ports are located at the lower part between two adjacent packing bucket racks (51).

8. A biological contact oxidation tank according to claim 1, characterized in that, Valves are respectively arranged at the drain port of the effluent channel (54), the sludge discharge port of the oxidation tank body (50), the aeration pipeline (52) and the water inlet pipeline (53).

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