Multi-stage purification integrated sewage treatment equipment

Abstract

The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to multi-stage purification integrated sewage treatment equipment which is characterized in that deslagging mechanisms are arranged at the bottoms of a primary settling chamber and a coagulating settling chamber; a pretreatment tank for stirring and filling sewage is arranged above the primary settling chamber; the secondary treatment tank comprises a plurality of partition plates which are arranged in parallel, and a first guide plate and a second guide plate which are fixed between every two adjacent partition plates; the secondary treatment tank is composed of a partition plate, a first guide plate, a second guide plate, a microorganism attachment part and an aeration plate, and the partition plate, the first guide plate and the second guide plate are matched to prolong the flowing path of sewage in the secondary treatment tank, so that oxygen discharged by the aeration plate can react with microorganisms in the sewage; therefore, most pollutants in the sewage can be changed into carbon dioxide and water by aerobic microorganisms through metabolism, and the sewage can be conveniently treated by adopting a biological method.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, and specifically relates to multi-stage purification integrated sewage treatment equipment. Background Art

[0002] Municipal sewage treatment refers to measures taken to modify the properties of sewage so that it does not harm the surrounding waters. Municipal sewage treatment is generally divided into three stages: primary treatment, which uses physical methods to remove insoluble pollutants and parasite eggs; secondary treatment, which uses biological methods to oxidize and degrade complex organic matter in sewage into simpler substances; and tertiary treatment, which uses chemical precipitation, biochemical methods, and physical-chemical methods to remove phosphorus, nitrogen, and recalcitrant organic matter and inorganic salts.

[0003] When traditional multi-stage integrated sewage treatment equipment is in use, the sewage stays in the equipment for a short time, which is not conducive to the sedimentation and biological treatment of sewage in the equipment, and prolongs the sewage treatment time, resulting in low sewage treatment efficiency.

[0004] Based on this, a multi-stage purification integrated sewage treatment equipment is designed to achieve the sewage treatment purpose in a shorter time by extending the sewage treatment path. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, this utility model provides a multi-stage purification integrated sewage treatment equipment, the specific technical solution is as follows:

[0006] A multi-stage integrated sewage treatment equipment comprises an integrated primary sedimentation chamber, a coagulation sedimentation chamber and a secondary treatment tank, wherein the secondary treatment tank is located between the primary sedimentation chamber and the coagulation sedimentation chamber, and a slag removal mechanism is provided at the bottom of each of the primary sedimentation chamber and the coagulation sedimentation chamber;

[0007] A pretreatment tank for sewage stirring filler is provided above the primary sedimentation chamber;

[0008] The secondary treatment tank includes several baffles arranged in parallel, and a first guide plate and a second guide plate fixed between two adjacent baffles. Notches for diversion are provided at the upper and oblique sides in opposite directions of the two adjacent baffles. The top of the first guide plate is flush with the top of the primary sedimentation chamber, and the bottom of the second guide plate is flush with the bottom of the coagulation sedimentation chamber. Microbial attachment parts for microbial implantation are provided on the first guide plate and the second guide plate. An aeration plate for increasing the oxygen content of sewage is provided at the bottom of the baffle, and the air inlet end of the aeration plate is connected to the air pump.

[0009] Preferably, the microorganism attachment member comprises a rubber rod fixed in a hole provided on the surface of the first guide plate and the second guide plate, and a sponge cover is connected to the outer surface of the rubber rod.

[0010] Preferably, diversion plates are provided inside the primary sedimentation chamber and the coagulation sedimentation chamber, and two slag removal mechanisms are respectively located on the sides and lower parts of the two diversion plates. The slag removal mechanism includes a slag collecting hopper and a dehydrator installed under the slag collecting hopper. The water outlet of the dehydrator is connected to a water pump through a pipeline, and the primary sedimentation chamber is connected to the water pump outlet of the slag removal mechanism at the bottom, and the coagulation sedimentation chamber is connected to the water pump outlet of the slag removal mechanism at the bottom.

[0011] Preferably, the pretreatment tank includes a stirring tank fixed on the upper part of the primary sedimentation chamber, a water injection pipe is provided on the outside of the stirring tank, a ring pipe is installed on the water injection pipe, a water outlet pipe installed on the inner side of the ring pipe is inserted into the interior of the stirring tank, and the angle between the axis of the water outlet pipe and the tangent of the stirring tank is an acute angle, a flow blocking strip is fixed on the inner surface of the stirring tank, a sewage pipe is installed on the upper end of the stirring tank, and the lower part of the sewage pipe extends into the primary sedimentation chamber.

[0012] Preferably, there are a plurality of water outlet pipes installed in a circular array on the inner side of the annular tube, and a plurality of flow-blocking strips are arranged in a circular array on the inner surface of the stirring tank, and the flow-blocking strips are triangular columnar structures.

[0013] Preferably, two first guide plates are provided between two adjacent partitions, and the two first guide plates are symmetrical with respect to the second guide plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by means of the slag removal mechanism provided at the bottom of the primary sedimentation chamber and the coagulation sedimentation chamber, the slag removal mechanism is facilitated to dehydrate and discharge the sediment at the bottom of the primary sedimentation chamber and the coagulation sedimentation chamber, thereby achieving the purpose of cleaning the sediment at the bottom of the primary sedimentation chamber and the coagulation sedimentation chamber; by means of the pretreatment tank provided above the primary sedimentation chamber, the pretreatment tank is facilitated to add medicine and mix the sewage, thereby facilitating the sewage after the addition of medicine to be initially precipitated in the primary sedimentation chamber first, and the sewage after the initial precipitation enters the secondary treatment tank for biological treatment, facilitating the sewage after biological treatment to enter the coagulation sedimentation chamber Coagulation and sedimentation are carried out; through a secondary treatment tank composed of a baffle, a first guide plate, a second guide plate, a microbial attachment member and an aeration plate, and the baffle, the first guide plate and the second guide plate are used to extend the flow path of the sewage in the secondary treatment tank, thereby facilitating the reaction of oxygen discharged from the aeration plate with microorganisms in the sewage, thereby facilitating aerobic microorganisms to convert most of the pollutants in the sewage into carbon dioxide and water through metabolism, and facilitating the use of biological methods to treat the sewage, and the microbial attachment member is arranged on the first guide plate and the second guide plate, thereby facilitating the attachment of microorganisms to the microbial attachment member for sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the partition, the first guide plate and the second guide plate in the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the microorganism attachment member in the present utility model.

[0020] Figure numerals: 1. Primary sedimentation chamber; 2. Coagulation sedimentation chamber; 3. Diverter plate; 4. Secondary treatment tank; 41. Partition; 42. First guide plate; 43. Second guide plate; 44. Microbial attachment part; 441. Rubber rod; 442. Sponge cover; 45. Aeration plate; 5. Mixing tank; 6. Drain pipe; 7. Water injection pipe; 8. Ring pipe; 9. Outlet pipe; 10. Flow blocking strip; 11. Slag collecting hopper; 12. Dehydrator; 13. Water pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model are described below.

[0022] See also Figure 1-5 The utility model provides a technical solution: a multi-stage purification integrated sewage treatment equipment, comprising an integrated primary sedimentation chamber 1, a coagulation sedimentation chamber 2 and a secondary treatment tank 4, the secondary treatment tank 4 is located between the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2, and the bottom of the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2 are both provided with a slag removal mechanism;

[0023] A pretreatment tank for sewage agitation and filling is provided above the primary sedimentation chamber 1;

[0024] The secondary treatment tank 4 includes a number of parallel partitions 41, and a first guide plate 42 and a second guide plate 43 fixed between two adjacent partitions 41. Notches for diversion are provided at the upper and oblique sides in opposite directions of the two adjacent partitions 41. The top of the first guide plate 42 is flush with the top of the primary sedimentation chamber 1, and the bottom of the second guide plate 43 is flush with the bottom of the coagulation sedimentation chamber 2. Microbial attachment parts 44 for microbial implantation are provided on the first guide plate 42 and the second guide plate 43. An aeration plate 45 for increasing the oxygen content of sewage is provided at the bottom of the partition 41, and the air inlet end of the aeration plate 45 is connected to the air pump.

[0025] In this embodiment, the slag removal mechanism is provided at the bottom of the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2, so that the slag removal mechanism can dehydrate and remove the sediment at the bottom of the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2, thereby achieving the purpose of cleaning the sediment at the bottom of the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2; the pretreatment tank is provided above the primary sedimentation chamber 1, so that the pretreatment tank can add medicine to the sewage, so that the sewage after the addition of medicine can be initially precipitated in the primary sedimentation chamber 1, and the sewage after the initial precipitation enters the secondary treatment tank 4 for biological treatment, so that the sewage after biological treatment can enter the coagulation sedimentation chamber 2 for coagulation and precipitation; The secondary treatment tank 4 is composed of a guide plate 42, a second guide plate 43, a microorganism attachment part 44 and an aeration plate 45, and the partition 41, the first guide plate 42 and the second guide plate 43 are used to extend the flow path of the sewage in the secondary treatment tank 4, thereby facilitating the reaction of oxygen discharged by the aeration plate 45 with microorganisms in the sewage, thereby facilitating aerobic microorganisms to convert most of the pollutants in the sewage into carbon dioxide and water through metabolism, and facilitating the use of biological methods to treat the sewage, and the microorganism attachment part 44 is arranged on the first guide plate 42 and the second guide plate 43, thereby facilitating the attachment of microorganisms to the microorganism attachment part 44 to treat the sewage.

[0026] Specifically, the microorganism attachment member 44 comprises a rubber rod 441 fixed within a hole defined in the surfaces of the first guide plate 42 and the second guide plate 43. A sponge sleeve 442 is attached to the outer surface of the rubber rod 441. In this embodiment, the microorganism attachment member 44, comprising the rubber rod 441 and the sponge sleeve 442, is constructed so that the porous material of the sponge sleeve 442 facilitates increased microbial attachment, reduces the risk of microorganisms flowing into the coagulation and sedimentation chamber 2 following the flow of sewage, and effectively prolongs the time the microorganisms remain within the secondary treatment tank 4.

[0027] Specifically, a diversion plate 3 is provided inside the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2. The two slag removal mechanisms are respectively located on the sides and lower parts of the two diversion plates 3. The slag removal mechanism includes a slag collecting hopper 11 and a dehydrator 12 installed at the lower part of the slag collecting hopper 11. The water outlet of the dehydrator 12 is connected to a water pump 13 through a pipeline, and the primary sedimentation chamber 1 is connected to the water outlet of the water pump 13 of the slag removal mechanism at the bottom, and the coagulation sedimentation chamber 2 is connected to the water outlet of the water pump 13 of the slag removal mechanism at the bottom. In this embodiment, the diverter plate 3 is arranged in the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2, so that the diverter plate 3 can prolong the residence time of the sewage in the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2, thereby helping to slow down the flow rate of the sewage and facilitate the precipitation of large particles in the sewage in the primary sedimentation chamber 1 and the coagulation sedimentation chamber 2. The slag removal mechanism consists of a slag collecting hopper 11, a dehydrator 12 and a water pump 13. The slag collecting hopper 11 is used to collect the sediment in the sewage, the dehydrator 12 is used to dehydrate and discharge the sediment at the bottom of the slag collecting hopper 11, and the water pump 13 is used to return the sewage squeezed out by the dehydrator 12, thereby reducing the discharge of sewage.

[0028] Specifically, the pretreatment tank includes a stirring tank 5 fixed on the upper part of the primary sedimentation chamber 1, a water injection pipe 7 is provided on the outside of the stirring tank 5, a ring pipe 8 is installed on the water injection pipe 7, a water outlet pipe 9 installed on the inner side of the ring pipe 8 is inserted into the interior of the stirring tank 5, and the angle between the axis of the water outlet pipe 9 and the tangent of the stirring tank 5 is an acute angle, a baffle 10 is fixed on the inner surface of the stirring tank 5, a sewage pipe 6 is installed at the upper end of the stirring tank 5, and the lower part of the sewage pipe 6 extends into the primary sedimentation chamber 1, there are several water outlet pipes 9 installed on the inner side of the ring pipe 8 in a circular array, and there are several baffle bars 10 on the inner surface of the stirring tank 5 in a circular array, and the baffle bars 10 are triangular columnar structures. In this embodiment, a pretreatment tank consisting of a stirring tank 5, a sewage discharge pipe 6, a water injection pipe 7, a ring pipe 8, a water outlet pipe 9 and a baffle 10 is used. The sewage flows into the ring pipe 8 through the water injection pipe 7 and is then injected into the interior of the stirring tank 5 through a number of water outlet pipes 9. The angle between the axis of the water outlet pipe 9 and the stirring tank 5 is an acute angle, so that the sewage injected into the stirring tank 5 rotates. The baffle 10 fixed on the inner surface of the stirring tank 5 makes it convenient for the baffle 10 to disturb the rotating sewage in the stirring tank 5, thereby achieving the purpose of sewage mixing. The sewage inside the stirring tank 5 is injected into the primary sedimentation chamber 1 through the sewage discharge pipe 6.

[0029] Specifically, two first guide plates 42 are provided between two adjacent partitions 41, and the two first guide plates 42 are symmetrical about the second guide plate 43. In this embodiment, the first guide plates 42 cooperate with the second guide plates 43 to increase the residence time of sewage between two adjacent partitions 41.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage purification integrated sewage treatment equipment, comprising an integrated primary sedimentation chamber (1), a coagulation sedimentation chamber (2) and a secondary treatment tank (4), wherein the secondary treatment tank (4) is located between the primary sedimentation chamber (1) and the coagulation sedimentation chamber (2), and is characterized in that: The bottoms of the primary sedimentation chamber (1) and the coagulation sedimentation chamber (2) are both provided with a slag removal mechanism; A pretreatment tank for sewage agitation filler is provided above the primary sedimentation chamber (1); The secondary treatment tank (4) includes a plurality of baffles (41) arranged in parallel, and a first guide plate (42) and a second guide plate (43) fixed between two adjacent baffles (41). Notches for guiding are provided at the upper and oblique sides in opposite directions of the two adjacent baffles (41). The top of the first guide plate (42) is flush with the top of the primary sedimentation chamber (1), and the bottom of the second guide plate (43) is flush with the bottom of the coagulation sedimentation chamber (2). Microbial attachment parts (44) for microbial implantation are provided on the first guide plate (42) and the second guide plate (43). An aeration plate (45) for increasing the oxygen content of the sewage is provided at the bottom of the baffle (41), and the air inlet end of the aeration plate (45) is connected to an air pump.

2. The multi-stage integrated purification sewage treatment equipment according to claim 1, characterized in that: The microorganism attachment member (44) comprises a rubber rod (441) fixed in a hole provided on the surface of the first guide plate (42) and the second guide plate (43), and a sponge sleeve (442) is connected to the outer surface of the rubber rod (441).

3. The multi-stage integrated purification sewage treatment equipment according to claim 1, characterized in that: The primary sedimentation chamber (1) and the coagulation sedimentation chamber (2) are both provided with a diverter plate (3), and two slag removal mechanisms are respectively located on the sides and below the two diverter plates (3). The slag removal mechanism includes a slag collecting hopper (11) and a dehydrator (12) installed below the slag collecting hopper (11). The water outlet of the dehydrator (12) is connected to a water pump (13) through a pipeline, and the primary sedimentation chamber (1) is connected to the water outlet of the water pump (13) of the slag removal mechanism at the bottom, and the coagulation sedimentation chamber (2) is connected to the water outlet of the water pump (13) of the slag removal mechanism at the bottom.

4. The multi-stage integrated purification sewage treatment equipment according to claim 1, characterized in that: The pretreatment tank comprises a stirring tank (5) fixed on the upper part of the primary sedimentation chamber (1), a water injection pipe (7) is provided on the outer side of the stirring tank (5), a ring pipe (8) is installed on the water injection pipe (7), a water outlet pipe (9) installed on the inner side of the ring pipe (8) is inserted into the interior of the stirring tank (5), and the angle between the axis of the water outlet pipe (9) and the tangent of the stirring tank (5) is an acute angle, a flow blocking strip (10) is fixed on the inner surface of the stirring tank (5), a sewage pipe (6) is installed on the upper end of the stirring tank (5), and the lower part of the sewage pipe (6) extends into the primary sedimentation chamber (1).

5. The multi-stage integrated purification sewage treatment equipment according to claim 4, characterized in that: There are a plurality of water outlet pipes (9) installed in a circular array on the inner side of the annular pipe (8), and a plurality of flow blocking strips (10) are arranged in a circular array on the inner surface of the mixing tank (5), and the flow blocking strips (10) are triangular columnar structures.

6. The multi-stage integrated purification sewage treatment equipment according to claim 1, characterized in that: Two first guide plates (42) are provided between two adjacent partition plates (41), and the two first guide plates (42) are symmetrical with respect to the second guide plate (43).

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