A pretreatment structure for a sewage mediation tank

Abstract

The utility model discloses a pretreatment structure for a sewage adjustment tank, including a mixing tank connected to the adjustment tank body, a stirring device is arranged inside the mixing tank, the mixing tank is connected to a plurality of water inlet pipes for conveying sewage, a discharge device is arranged on the side wall of the mixing tank, a water filter device with adjustable height is arranged at the water inlet end of the discharge device, and the bottom of the water filter device is lower than the water surface inside the mixing tank. Floating objects and large-mass sediments are centrally processed, creating better conditions for subsequent adjustment processing of the adjustment tank body, and accelerating the processing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a pretreatment structure for a sewage adjustment tank. Background Art

[0002] In the alcohol production process, a sewage regulating tank, also known as an acidification tank, is used. The sewage acidification tank is usually used as a treatment unit for sewage treatment. It can hydrolyze the macromolecular organic matter in the incoming sewage into small molecular organic matter, thereby improving the biodegradability of the sewage. In the early stage of the sewage treatment system, the acidification tank is also used to cultivate activated sludge, that is, through intermittent water inlet pipes and artificial addition of nutrients to promote the growth and reproduction of microorganisms, and provide sufficient biomass for subsequent biological treatment. Through hydrolysis and acidification, the acidification tank can remove some organic matter, especially by converting it into small molecular organic matter, laying the foundation for subsequent aerobic treatment. During the acidification process, the organic matter in the sludge is decomposed by microorganisms to produce substances such as organic acids, which helps to stabilize the sludge and reduce the difficulty of subsequent sludge treatment and disposal.

[0003] However, during the acidification tank treatment process, it was found that when sewage was directly transported to the acidification tank through multiple directions, due to the different pH values ​​and sediment contents in the sewage, some floating objects would float on the surface. When entering the acidification tank, the uneven pH value and overly concentrated sediments would have a certain impact on the bacteria in the acidification tank, reducing the treatment efficiency of the acidification tank. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art that when sewage enters an acidification tank, the pH value and the uneven sediment reduce the treatment efficiency of the acidification tank, and provide a pretreatment structure for a sewage regulating tank.

[0005] The utility model is realized through the following technical scheme: a pretreatment structure for a sewage adjustment tank, comprising a mixing tank connected to a main body of the adjustment tank, a stirring device is arranged inside the mixing tank, the mixing tank is connected to a plurality of water inlet pipes for conveying sewage, a discharge device is arranged on the side wall of the mixing tank, a water filter device with adjustable height is arranged at the water inlet end of the discharge device, and the bottom of the water filter device is lower than the water surface inside the mixing tank.

[0006] Furthermore, the mixing tank is a rectangular tank or a circular tank with an opening at the top, and the stirring device is arranged at the bottom of the mixing tank. The stirring device includes a vertically arranged stirring shaft, and a plurality of stirring blades are arranged on the side wall of the stirring shaft.

[0007] Furthermore, the water outlet of the water inlet pipe faces the bottom of the mixing tank.

[0008] Furthermore, the discharge device comprises a conveying trough arranged on the side wall of the mixing tank, the top of the conveying trough is open, and the conveying trough is arranged above the regulating tank body.

[0009] Furthermore, a chute is vertically arranged on the side wall of the mixing tank at the water inlet end of the conveying trough, and the water filtering device is a filter plate slidably arranged inside the chute.

[0010] Furthermore, a locking bolt abutting against the filter plate is arranged on the outer wall of the mixing tank.

[0011] The beneficial effects of the utility model are that the mixing tank is connected to multiple water inlet pipes for conveying sewage, and the water outlets of the multiple water inlet pipes are all toward the bottom of the mixing tank, so that the sewage entering the mixing tank can directly impact the bottom of the mixing tank, which is helpful for the uniform distribution of the sewage in the mixing tank, and also avoids the long-term accumulation and sedimentation of sewage in the mixing tank, thereby improving the use effect. The top of the conveying trough is open and has a certain length, so that the sewage can be conveyed to the inside of the adjustment tank body at a height with a drop, preventing the sediment from accumulating in one place inside the adjustment tank body, thereby improving the mixing effect and ensuring the treatment efficiency.

[0012] When the amount of water is large, the bottom of the filter plate is hollow to ensure the delivery of sewage and sediment. The filter plate can effectively filter out large particles of impurities in the sewage. The filter plate mainly filters impurities floating on the water surface, and always blocks the floating objects inside the mixing pool. The floating objects and large mass sediments are processed centrally, creating better conditions for the subsequent adjustment treatment of the mediation pool body and accelerating the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the use state of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0015] Among them: 1. Adjustment tank body; 2. Mixing tank; 201. Water inlet pipe; 202. Conveying trough; 203. Slag discharge pipe; 3. Stirring device; 4. Filter plate; 401. Slide; 402. Locking bolt. DETAILED DESCRIPTION

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] like Figure 1-2 As shown: a pretreatment structure for a sewage regulating tank, in particular, a structure that can effectively mix sewage and pretreat the sewage before it enters the acidification tank, mainly including a mixing tank 2 connected to the regulating tank body 1. First, the mixing tank 2 is designed as a rectangular tank or a circular tank with an opening on the top. When the capacity of the regulating tank body is large, the rectangular mixing tank 2 can greatly accommodate the sewage content. Multiple groups of stirring devices 3 can be installed side by side. This design makes it easy to observe the working conditions inside the mixing tank 2, and it is also convenient for cleaning and maintenance.

[0020] A stirring device 3 is provided inside the mixing tank 2. The mixing tank 2 is connected to a plurality of water inlet pipes 201 for conveying sewage. The water outlets of the plurality of water inlet pipes 201 are all facing the bottom of the mixing tank 2. This design allows the sewage entering the mixing tank 2 to directly impact the bottom of the mixing tank 2, which helps to evenly distribute the sewage in the mixing tank 2. At the same time, it also avoids the long-term accumulation and precipitation of sewage in the mixing tank 2, thereby improving the use effect.

[0021] A stirring device 3 is provided at the bottom of the mixing tank 2, and the stirring device 3 includes a vertically arranged stirring shaft, and a plurality of stirring blades are provided on the side wall of the stirring shaft. When the stirring device 3 is started, the stirring blades will drive the sewage in the mixing tank 2 to rotate and mix, thereby ensuring that the sewage is evenly treated in the mixing tank 2, so that the pH value of the sewage transported by the multiple water inlet pipes 201 after mixing is neutralized, and it is prevented that the multiple water inlet pipes 201 simultaneously transport sewage with a large difference in pH value into the adjustment tank body 1, thereby ensuring the activity of the bacteria in the adjustment sub-body and improving the sewage treatment efficiency.

[0022] At the same time, a discharge device is arranged on the side wall of the mixing tank 2, and a water filter device with adjustable height is arranged at the water inlet end of the discharge device. The discharge device includes a conveying trough 202 arranged on the side wall of the mixing tank 2, and the top of the conveying trough 202 is open and is arranged above the mediation tank body 1. After the sewage in the mixing tank 2 is pre-treated, it can be discharged into the mediation tank body 1 through the conveying trough 202. This design can make the discharge of sewage smoother. The top of the conveying trough 202 is open and has a certain length. The sewage can be transported to the inside of the mediation tank body at a height with a drop, so as to prevent the sediment from accumulating in one place inside the mediation tank body, thereby improving the mixing effect and ensuring the treatment efficiency.

[0023] A water filter device with adjustable height is provided at the water inlet end of the discharge device. The water filter device is a filter plate 4 slidably arranged inside the chute 401. A chute 401 is vertically arranged on the side wall of the mixing tank 2 at the water inlet end of the conveying trough 202. By adjusting the position of the filter plate 4 in the chute 401, the height of the water filter device can be adjusted to meet the filtering needs of different water levels. The bottom of the filter plate 4 is always kept below the water surface. At the same time, when the amount of water is large, the bottom of the filter plate 4 is hollow to ensure the conveying amount of sewage and sediment. The filter plate 4 can effectively filter out large particles of impurities in the sewage, wherein the filter plate 4 mainly filters impurities floating on the water surface. , the floating objects are always blocked inside the mixing tank 2. A locking bolt 402 abutting against the filter plate 4 is also provided on the outer wall of the mixing tank 2. When the filter plate 4 is adjusted to a suitable position, the position of the filter plate 4 can be adjusted by tightening the locking bolt 402. After the treatment is completed, the conveying trough 202 is blocked with the filter plate 4 to block the floating objects. Then, the slag discharge pipe 203 arranged at the bottom of the mixing tank 2 is opened to discharge the sewage that is not easy to mix and the residual sewage that has settled to the bottom of the mixing tank 2 at the beginning for centralized treatment. The floating objects and large-mass sediments are centrally treated, creating better conditions for the subsequent adjustment treatment of the adjustment tank body 1 and accelerating the treatment efficiency.

[0024] This sewage conditioning tank uses a pretreatment structure to achieve uniform mixing of sewage through the stirring device 3, achieves smooth transportation of sewage through the water inlet pipe 201 and the discharge device, and achieves effective pretreatment of sewage through the water filtering device. This structure is reasonably designed and easy to operate, and can effectively improve the pretreatment effect of sewage, laying a good foundation for subsequent treatment processes.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pretreatment structure for a sewage adjustment tank, comprising a mixing tank connected to a main body of the adjustment tank, characterized in that: A stirring device is provided inside the mixing tank, and the mixing tank is connected to multiple water inlet pipes for conveying sewage. A discharge device is provided on the side wall of the mixing tank. A height-adjustable water filter device is provided at the water inlet end of the discharge device, and the bottom of the water filter device is lower than the water surface inside the mixing tank.

2. The pretreatment structure for the sewage adjustment tank according to claim 1 is characterized in that: The mixing pool is a rectangular pool or a circular pool with an opening on the top. The stirring device is arranged at the bottom of the mixing pool. The stirring device comprises a vertically arranged stirring shaft, and a plurality of stirring blades are arranged on the side wall of the stirring shaft.

3. The pretreatment structure for the sewage adjustment tank according to claim 1 is characterized in that: The water outlet of the water inlet pipe faces the bottom of the mixing tank.

4. The pretreatment structure for a sewage adjustment tank according to claim 1 is characterized in that: The discharge device comprises a conveying trough arranged on the side wall of the mixing tank, the top of the conveying trough is open, and the conveying trough is arranged above the regulating tank body.

5. The pretreatment structure for the sewage adjustment tank according to claim 4 is characterized in that: A chute is vertically arranged on the side wall of the mixing tank at the water inlet end of the conveying trough, and the water filtering device is a filter plate slidably arranged inside the chute.

6. The pretreatment structure for the sewage adjustment tank according to claim 5 is characterized in that: The outer wall of the mixing tank is provided with locking bolts abutting against the filter plate.

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