Step-type automatic overflow CNT wastewater treatment device

Abstract

The utility model discloses a stepped automatic overflow CNT (Carbon Nanotube) wastewater treatment device, which belongs to the technical field of CNT wastewater treatment and comprises a water inlet pipe, a pH (Potential of Hydrogen) regulating tank, a primary flocculation tank, a primary sedimentation tank, a complex breaking tank, a secondary flocculation tank, a secondary sedimentation tank and a discharge lift pump which are connected in sequence, wherein an inclined plate filler layer, an aeration pipeline and a sludge hopper are sequentially arranged in the primary sedimentation tank and the secondary sedimentation tank from top to bottom, and the sludge hopper is sequentially connected with a sludge discharge pipe and a sludge discharge pump so as to discharge sludge; according to the CNT wastewater treatment system, the pH regulating tank, the flocculation tank, the primary sedimentation tank, the complex breaking tank, the secondary flocculation tank and the secondary sedimentation tank are arranged in a stepped manner, so that after CNT raw water enters the pH regulating tank, wastewater sequentially passes through the pH regulating tank, the flocculation tank, the primary sedimentation tank, the complex breaking tank, the secondary flocculation tank and the secondary sedimentation tank under the action of liquid level difference and gravitational potential energy; the water tanks are connected through overflow pipes, so that continuous operation of wastewater treatment is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ladder type automatic overflow's CNT wastewater treatment device, belong to CNT wastewater treatment technical field. BACKGROUND

[0002] CNT (Continuous neutralization of wastewater treatment) wastewater, i.e. continuous comprehensive wastewater treatment, is the most common wastewater type in industrial production, and the core of continuous wastewater treatment is the continuous entry of wastewater and the continuous operation of treatment equipment. The wastewater enters the mixer through the regulator, then enters the main reactor for main treatment, and finally passes through the separator and flocculation sedimentation tank or is directly discharged.

[0003] To save energy consumption and realize the automatic operation of wastewater treatment, enterprises use ladder type automatic overflow's CNT wastewater treatment device to realize efficient continuous treatment of wastewater. The CNT wastewater quantity generally accounts for a large proportion of the wastewater quantity of the enterprise, and the hydraulic transportation between the water pools is mostly through pumping, which not only consumes energy but also brings many problems such as pump maintenance. Once the hydraulic transportation speed cannot meet the water inlet requirement, there is a risk of water overflow. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in the prior art and provides a kind of ladder type automatic overflow's CNT wastewater treatment device. By arranging the pH adjusting pool, flocculation pool, primary sedimentation tank, breakage pool, secondary flocculation pool and secondary sedimentation tank in a ladder shape, when the CNT raw water enters the pH adjusting pool, the wastewater passes through the pH adjusting pool, flocculation pool, primary sedimentation tank, breakage pool, secondary flocculation pool and secondary sedimentation tank in sequence under the action of liquid level difference and gravitational potential energy, and the water pools are connected by overflow pipes, realizing the continuous operation of wastewater treatment.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by using the following technical scheme:

[0006] In the first aspect, the utility model provides a kind of ladder type automatic overflow's CNT wastewater treatment device, which comprises water inlet pipe, pH adjusting pool, primary flocculation pool, primary sedimentation tank, breakage pool, secondary flocculation pool, secondary sedimentation tank and discharge lifting pump connected in sequence.

[0007] The primary sedimentation tank and the secondary sedimentation tank are provided with inclined plate filler layer, aeration pipeline and sludge hopper from top to bottom inside, and the sludge hopper is connected with sludge discharge pipe and sludge discharge pump in sequence to realize sludge discharge.

[0008] Further, the pH adjusting pool, primary flocculation pool, breakage pool and secondary flocculation pool are all provided with a mixer.

[0009] Further, the height of the primary flocculation tank, the primary sedimentation tank, the breaker tank, the secondary flocculation tank and the secondary sedimentation tank is sequentially reduced, and the height difference is 80cm.

[0010] Further, the primary flocculation tank, the primary sedimentation tank and the breaker tank are connected through overflow pipes, and the secondary flocculation tank, the secondary sedimentation tank and the discharge lifting pump are connected through overflow pipes.

[0011] Further, the outlet diameter of each overflow pipe is greater than or equal to the inlet diameter.

[0012] Further, the overflow pipe is made of PVC material, and the pipe diameter is not less than 200mm.

[0013] Further, the mixer is made of SUS316L ultra-low carbon austenitic stainless steel material.

[0014] Further, the surface load ratio of the inclined plate filler layer is 5-9m 3 / m 2 .h.

[0015] Further, the inclined angle of the inclined plate filler layer is set to 60 degrees.

[0016] Further, the primary sedimentation tank and the secondary sedimentation tank are lined with FRP material with a thickness of 1cm.

[0017] Compared with the prior art, the beneficial effects achieved by the present application are:

[0018] The present application provides a kind of ladder type automatic overflow CNT wastewater treatment device, by the pH regulating tank, primary flocculation tank, primary sedimentation tank, breaker tank, secondary flocculation tank, secondary sedimentation tank are arranged in ladder, when CNT raw water enters pH regulating tank, under the action of liquid level difference and gravity potential, wastewater sequentially passes through pH regulating tank, flocculation tank, primary sedimentation tank, breaker tank, secondary flocculation tank, secondary sedimentation tank, and each pool is connected by overflow pipe, to realize the continuous operation of wastewater treatment;

[0019] The present application realizes ladder type automatic overflow by gravity potential, CNT wastewater continuously water inlet carries out pH adjustment, coagulation and flocculation, primary sedimentation, and then supernatant enters breaker tank to remove heavy metal ions by breaking complex, flocculation and secondary sedimentation are carried out again, and finally standard discharge is realized.This novel ladder type automatic overflow CNT wastewater treatment device saves the power consumption of lifting pump, improves the automation degree of wastewater treatment equipment, and reduces labor and production cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the present application a kind of ladder type automatic overflow CNT wastewater treatment device.

[0021] The reference signs in the drawings are as follows: 1, water inlet pipe; 2, pH adjusting tank; 3, agitator; 4, primary flocculation tank; 5, overflow pipe; 6, primary sedimentation tank; 7, inclined plate filler layer; 8, sludge discharge pipe; 9, sludge discharge pump; 10, aeration pipe; 11, breaker tank; 12, secondary flocculation tank; 13, secondary sedimentation tank; 14, sludge hopper; 15, discharge lifting pump. DETAILED DESCRIPTION

[0022] The utility model will be described further in connection with the drawings. The following examples are only used to make the technical scheme of the utility model more clear, and cannot limit the protection scope of the utility model.

[0023] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. EMBODIMENT

[0025] As Figure 1As shown, the utility model discloses a kind of CNT wastewater treatment devices of stepped automatic overflow, comprising: water inlet pipe 1, pH adjusting pool 2, mixer 3, primary flocculation pool 4, overflow pipe 5, primary sedimentation tank 6, breakage pool 11, secondary flocculation pool 12, secondary sedimentation tank 13, discharge lift pump 15, the primary sedimentation tank 6 and secondary sedimentation tank 13 inside are all provided with inclined plate filler layer 7, the inclination angle of inclined plate filler layer 7 is 60 degrees, interval is 60-120mm, the lower portion of inclined plate filler layer 7 is provided with aeration pipeline 10, the primary sedimentation tank 6 and secondary sedimentation tank 13 inside are all provided with sludge hopper 14, sludge discharge pipe 8 and sludge pump 9;The height of the primary flocculation pool 4, primary sedimentation tank 6, breakage pool 11, secondary flocculation pool 12, secondary sedimentation tank 13 gradually decreases in turn, and height difference is all 80cm;The outlet diameter of each pool body overflow pipe 5 is all greater than or equal to the inlet diameter, ensure that no water occurs;The material of overflow pipe 5: PVC, pipe diameter is not less than DN200;The material of mixer 3: SUS316L;The surface load ratio of inclined plate filler layer 7 is: 5-9m 3 / m 2 .h;The inclination angle of inclined plate filler layer 7 is set to 60 degrees;The material of primary sedimentation tank 6, secondary sedimentation tank 13 is 1cm thick steel lining FRP corrosion prevention.

[0026] The working process of the utility model is as follows: CNT raw water is transported to pH adjusting pool 2 by lift pump, the pH of pH adjusting pool 2 is adjusted to about 9.5 by adding NaOH or H2SO4, and the mixer 3 continuously performs mechanical stirring during the dosing process to ensure that the chemical reaction proceeds fully, and then automatically enters the primary flocculation pool 4 through the lower communication port, the primary flocculation pool 4 adds coagulant such as FeSO4 or PAC and flocculant such as PAM, and after sufficient reaction, automatically enters the primary sedimentation tank 6 through the upper overflow pipe 5, the primary sedimentation tank 6 is an inclined plate sedimentation tank, there is a very shallow sedimentation tank between every two parallel inclined plates of the inclined plate sedimentation tank, the "shallow layer sedimentation" principle is used to shorten the particle settling distance, thereby shortening the sedimentation time and increasing the sedimentation area of the sedimentation tank, thereby improving the treatment efficiency. To avoid the accumulation of sludge in the inclined plate filler layer 7 for a long time, which affects the water passing efficiency, the lower portion of the inclined plate filler layer 7 is provided with an aeration pipe 10 for regular aeration treatment of the inclined plate filler layer 7. The primary sedimentation tank 6 and the secondary sedimentation tank 13 are provided with a sludge hopper 14, a sludge discharge pipe 8 and a sludge pump 9 below for sludge discharge. The effluent of the primary sedimentation tank 6 automatically enters the breakage pool 11 through the overflow pipe 5, the breakage pool 11 adds heavy metal removing agent such as Na2S to remove copper ions and other heavy metal ions in the complex state, the wastewater after breakage treatment automatically enters the secondary flocculation pool 12, secondary flocculation is realized by adding coagulant and flocculant, and then enters the secondary sedimentation tank 13 through the overflow pipe 5 for secondary sedimentation treatment, and finally the overflow water is discharged through the discharge pump 15 to meet the discharge standard.

[0027] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as falling within the protection scope of the present application.

Claims

1. A stepped automatic overflow CNT wastewater treatment device, characterized in that, It includes an inlet pipe (1), a pH adjustment tank (2), a primary flocculation tank (4), a primary sedimentation tank (6), a complex breaking tank (11), a secondary flocculation tank (12), a secondary sedimentation tank (13), and a discharge booster pump (15) connected in sequence. The primary sedimentation tank (6) and the secondary sedimentation tank (13) are provided with an inclined plate packing layer (7), an aeration pipe (10) and a sludge hopper (14) from top to bottom. The sludge hopper (14) is connected to the sludge discharge pipe (8) and the sludge discharge pump (9) in sequence to realize the discharge of sludge. The heights of the primary flocculation tank (4), primary sedimentation tank (6), chelation breaking tank (11), secondary flocculation tank (12), and secondary sedimentation tank (13) decrease sequentially, and the height difference is 80cm.

2. The stepped automatic overflow CNT wastewater treatment device according to claim 1, characterized in that: A mixer (3) is provided in each of the pH adjustment tank (2), the primary flocculation tank (4), the complex breaking tank (11), and the secondary flocculation tank (12).

3. The stepped automatic overflow CNT wastewater treatment device according to claim 1, characterized in that: The primary flocculation tank (4), primary sedimentation tank (6) and chelation breaking tank (11) are connected by an overflow pipe (5), and the secondary flocculation tank (12), secondary sedimentation tank (13) and discharge booster pump (15) are connected by an overflow pipe (5).

4. The stepped automatic overflow CNT wastewater treatment device according to claim 3, characterized in that: The outlet diameter of each overflow pipe (5) is greater than or equal to the inlet diameter.

5. The stepped automatic overflow CNT wastewater treatment device according to claim 3, characterized in that: The overflow pipe (5) is made of PVC and has a diameter of not less than 200mm.

6. The stepped automatic overflow CNT wastewater treatment device according to claim 2, characterized in that: The mixer (3) is made of SUS316L ultra-low carbon austenitic stainless steel.

7. The stepped automatic overflow CNT wastewater treatment device according to claim 1, characterized in that: The surface load ratio of the inclined plate packing layer (7) is 5-9m. 3 / m 2 .h 8. The stepped automatic overflow CNT wastewater treatment device according to claim 1, characterized in that: The inclination angle of the inclined plate filler layer (7) is set to 60 degrees.

9. The stepped automatic overflow CNT wastewater treatment device according to claim 1, characterized in that: The primary sedimentation tank (6) and the secondary sedimentation tank (13) are made of 1cm thick steel plate lined with FRP material.

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