Micro-ecological sewage purification equipment

Abstract

The utility model belongs to the technical field of sewage treatment, and relates to an aeration tank, in particular to micro-ecological sewage purification equipment which comprises an aeration tank, a slope is arranged at the bottom of one end of the aeration tank, a water outlet is formed in the upper side of the slope, and a mud fixing grid and a mud fixing net are arranged at one end, close to the slope, of the aeration tank. The sludge fixing grid is arranged above the sludge fixing net, the sludge fixing grid comprises a plurality of side-by-side grid plates for preventing sludge from moving, reinforcing plates are fixedly connected between the adjacent grid plates, the grid plates are fixedly connected with the side wall of the aeration tank, the sludge fixing net is fixed at the bottom of the aeration tank, a baffle is arranged between the slope and the water outlet, and the baffle is fixedly connected with the side wall of the aeration tank. The end, away from the water outlet, of the baffle inclines upwards. The slope is arranged, the distance between sludge and the water outlet is increased, the sludge fixing grid and the sludge fixing net are arranged to prevent the sludge from moving, meanwhile, the baffle is arranged to further prevent the sludge from getting close to the water outlet, and therefore the water outlet of the sludge dewatering device does not need to be worried about being blocked by the sludge.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field relates to aeration tank especially relates to a kind of micro-ecological sewage purification equipment. BACKGROUND

[0002] Micro-ecological sewage purification equipment is sewage treatment equipment using microorganism to decompose organic matter, and the common representative is aeration tank, which is a biochemical reactor designed according to the characteristics of microorganisms. The aeration tank uses activated sludge method for sewage treatment, provides a certain sewage retention time in the tank, meets the oxygen demand of aerobic microorganisms and the mixing conditions of sufficient contact between sewage and activated sludge. The application file with the application number CN201921474925.4 discloses an aeration tank, which solves the problem of sludge accumulation in the drain outlet, thereby blocking the drain outlet. The proposed technical solution is to use a sludge pump to extract and discharge the sludge at the drain outlet to the water inlet. However, this method consumes a lot of energy and increases the cost of sewage treatment. SUMMARY

[0003] The utility model provides a kind of micro-ecological sewage purification equipment that can hinder sludge to block drain outlet in view of the above sludge easily blocks drain outlet problem.

[0004] To achieve the above purpose, the utility model adopts the technical scheme as follows: a kind of micro-ecological sewage purification equipment, including aeration tank, the aeration tank one end bottom is provided with slope, the slope upper side is provided with drain outlet, the aeration tank is provided with solid sludge grid and solid sludge net in the end close to slope, the solid sludge grid is set above solid sludge net, the solid sludge grid includes several pieces and moves the grid board of sludge resistance, adjacent The grid board is fixedly connected with reinforcing plate, the grid board is fixedly connected with the side wall of aeration tank, the solid sludge net is fixed in the bottom of aeration tank, the slope is provided with baffle between drain outlet, the end of baffle far from water outlet is inclined upward.

[0005] Preferably, the included angle between the baffle and the horizontal plane is 30°-60°.

[0006] Preferably, the lower side of the baffle is provided with a reverse tooth.

[0007] Preferably, the grid board is inclined, and the included angle between the grid board and the horizontal plane is 60°-90°.

[0008] Preferably, the aeration tank is provided with a gas delivery pipe, the gas delivery pipe is provided with a spray head, and the bottom of the aeration tank is fixed with a liquid flow bottom mechanism, the liquid flow bottom mechanism includes an upper flow guide pipe arranged above the spray head and a lower flow guide pipe arranged in the sludge, and the upper flow guide pipe and the lower flow guide pipe are communicated.

[0009] Preferably, both the upper and lower guide pipes have through holes on their lower sides.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This invention increases the distance between the sludge and the drain outlet by setting a slope, and sets up a sludge-fixing grid and a sludge-fixing net to prevent the sludge from moving. At the same time, a baffle is set up to further prevent the sludge from approaching the drain outlet, so that the drain outlet of this invention does not have to worry about being blocked by sludge.

[0012] This invention has a simple structure, is easy to manufacture, and requires no further energy consumption except for ventilation, making it more energy-efficient. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a micro-ecological sewage purification device.

[0015] In the above figures, 1 is the aeration tank; 11 is the slope; 2 is the drain outlet; 3 is the sludge grid; 31 is the grid plate; 32 is the reinforcing plate; 4 is the sludge net; 5 is the baffle; 51 is the toothed bar; 6 is the air supply pipe; 7 is the nozzle; 8 is the upper guide pipe; and 9 is the lower guide pipe. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] like Figure 1As shown, a micro-ecological sewage purification device includes an aeration tank 1. A slope 11 is provided at the bottom of one end of the aeration tank 1. A drain outlet 2 is provided on the upper side of the slope 11. A sludge grid 3 and a sludge net 4 are provided at the end of the aeration tank 1 near the slope 11. The sludge grid 3 is located above the sludge net 4. The sludge grid 3 includes several parallel grid plates 31 that hinder the movement of sludge. A reinforcing plate 32 is fixedly connected between adjacent grid plates 31. The grid plates 31 are fixedly connected to the side wall of the aeration tank 1. The sludge net 4 is fixed at the bottom of the aeration tank 1 and submerged in the sludge. A baffle 5 is provided between the slope 11 and the drain outlet 2. The end of the baffle 5 away from the outlet is inclined upward.

[0019] Specifically, this utility model increases the distance between the drain outlet 2 and the bottom sludge of the aeration tank 1 by setting up a slope 11, hinders the movement of the lower layer of sludge by using a sludge-fixing net 4, hinders the movement of the surface layer of sludge by using a sludge-fixing grid 3, and sets up a baffle 5 to prevent sludge from entering the drain outlet 2.

[0020] Furthermore, the angle between the baffle 5 and the horizontal plane is 30° to 60°.

[0021] Furthermore, the lower side of the baffle 5 is provided with inverted teeth 51 to prevent the silt from moving upward along the lower side of the baffle 5. Furthermore, the grid plate 31 is set to be inclined, with an angle of 60° to 90° with the horizontal plane.

[0022] Furthermore, an air supply pipe 6 is installed in the aeration tank 1, and several nozzles 7 for spraying gas are installed on the air supply pipe 6. A liquid flow submerged bottom mechanism is fixed at the bottom of the aeration tank 1. The liquid flow submerged bottom mechanism includes an upper guide pipe 8 installed above the nozzles 7 and a lower guide pipe 9 installed in the sludge. The upper guide pipe 8 and the lower guide pipe 9 are connected.

[0023] Furthermore, both the upper guide pipe 8 and the lower guide pipe 9 are provided with through holes on their lower sides to facilitate contact between the liquid flow and the sludge. The sludge is difficult to enter the lower guide pipe 9 from the lower side. Moreover, the upper guide pipe 8 and the lower guide pipe 9 are closed at both ends, allowing the deep sludge to come into contact with the liquid flow, which is beneficial for the aerobic bacteria in the deep sludge to produce effects.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A micro-ecological wastewater purification device, comprising an aeration tank, characterized in that, The aeration tank has a slope at one end of its bottom, and a drain outlet is provided on the upper side of the slope. At the end of the aeration tank near the slope, there is a sludge grid and a sludge net. The sludge grid is located above the sludge net and includes several parallel grid plates that hinder the movement of sludge. A reinforcing plate is fixedly connected between adjacent grid plates. The grid plates are fixedly connected to the side wall of the aeration tank. The sludge net is fixed to the bottom of the aeration tank. A baffle is provided between the slope and the drain outlet, and the end of the baffle away from the outlet is inclined upward.

2. The micro-ecological wastewater purification equipment according to claim 1, characterized in that, The angle between the baffle and the horizontal plane is 30° to 60°.

3. The micro-ecological wastewater purification equipment according to claim 2, characterized in that, The lower side of the baffle is provided with reverse teeth.

4. The micro-ecological wastewater purification equipment according to claim 1, characterized in that, The grid is set to be inclined, with an angle of 60° to 90° with the horizontal plane.

5. The micro-ecological wastewater purification equipment according to claim 1, characterized in that, An air supply pipe is installed in the aeration tank, and a nozzle is installed on the air supply pipe. A liquid flow submerged bottom mechanism is fixed at the bottom of the aeration tank. The liquid flow submerged bottom mechanism includes an upper guide pipe installed above the nozzle and a lower guide pipe installed in the sludge. The upper guide pipe and the lower guide pipe are connected.

6. The micro-ecological wastewater purification equipment according to claim 5, characterized in that, Both the upper and lower guide pipes have through holes on their lower sides.

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