Nitrogen-containing industrial tail water denitrification treatment device and treatment method

Abstract

The invention discloses a nitrogen-containing industrial tail water denitrification treatment device and a treatment method, the nitrogen-containing industrial tail water denitrification treatment device specifically comprises a treatment tank and a filler part slidably arranged in the treatment tank, two ends of the treatment tank are respectively provided with a mesh plate and a mesh plate, a water inlet area is formed between the mesh plate and the inner wall of the treatment tank, and a water outlet area is formed between the mesh plate and the inner wall of the treatment tank; when the extending end of the first air cylinder is controlled to stretch, swinging of the filling part is achieved, waste water on the two sides of the treatment tank is impacted along with swinging of the filling part, the filling part, the net inlet plate and the net outlet plate are washed, sludge accumulation on the net inlet plate, the net outlet plate and the outer wall of the filling part is avoided, and the waste water treatment effect is improved. A connecting plate can also drive a piston rod I to perform lifting motion, gas is continuously conveyed into a spraying strip pipe to spray a net inlet plate and a net outlet plate, and the wastewater treatment effect of the treatment tank is jointly ensured from the two angles of washing and spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more specifically, to a nitrogen-containing industrial tail water denitrification treatment device and a treatment method thereof. Background Art

[0002] Industrial tail water refers to the wastewater generated during industrial production, which is discharged after a certain treatment or utilization. These wastewaters usually contain various pollutants, including organic matter, inorganic matter, heavy metals, toxic chemicals, and microorganisms, posing a serious threat to the environment and human health; For example, a document of a composite artificial wetland system for sewage treatment and ecological restoration with the publication number of CN102745869B is mainly used for the advanced purification of urban sewage, initial rainwater and industrial tail water, and the ecological restoration of polluted river, lake and other surface waters. When denitrifying and treating wastewater, micro-hole or perforated pipe aerators are arranged in the tank to re-oxygenate the flowing wastewater, so as to form multiple A / O and nitrification / denitrification chains in the whole wetland system, strengthening the denitrification effect and the removal effect of refractory organic matter; However, in the above patent document, when denitrifying and treating wastewater, the outside of the perforated partition plate in the tank is easily blocked by sludge, thus affecting the denitrification treatment of wastewater in the tank. During the continuous treatment of wastewater, the outer wall of the tank cannot be flushed and sprayed, and from the two perspectives of flushing and spraying, the treatment effect of wastewater in the tank is jointly ensured; In view of the above technical defects, a solution is provided now. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a nitrogen-containing industrial tail water denitrification treatment device and a treatment method thereof.

[0004] To achieve the above object, the present invention provides the following technical solution: a nitrogen-containing industrial tail water denitrification treatment device, including a treatment tank and a filler member slidably arranged inside it. An aerator is arranged below the filler member. Inlet plates and outlet plates are respectively installed at both ends of the treatment tank, and an inlet area is formed between the inlet plate and the inner wall of the treatment tank, and an outlet area is formed between the outlet plate and the inner wall of the treatment tank. A flushing component for brushing the outer walls of the net plates and the filler member is arranged above the treatment tank; The flushing component includes a support plate, on which a lifting plate is slidably arranged. A cylinder I is also installed on the support plate, and the extending end of the cylinder I is connected to the lifting plate. A special-shaped groove is opened on the outer wall of the lifting plate, and a lower fixing plate is arranged at the rear side of the lifting plate. A limiting roller is installed on the lower fixing plate, and the limiting roller is in transmission cooperation with the special-shaped groove.

[0005] Further, the middle part of the lower fixing plate is rotationally connected to the support plate through a limit pin. A cross plate is fixedly installed at the bottom of the lower fixing plate. Two groups of adjusting rollers are symmetrically arranged at the bottom of the cross plate. A swing plate is arranged between the two adjusting rollers.

[0006] Further, a swing groove is formed at the top of the treatment tank, and the swing plate is located in the swing groove and its bottom is fixedly connected to the packing member.

[0007] Further, a spraying and brushing member is arranged at the rear side of the support plate. The spraying and brushing member includes a connecting plate connected to the extending end of the first cylinder. A first piston rod is arranged at the bottom of the connecting plate. A control box is arranged at the top of the treatment tank, and the top of the control box is connected to the support plate.

[0008] Further, the bottom of the first piston rod movably penetrates into the control box and is provided with a piston plate, and the piston plate is slidably matched with the control box.

[0009] Further, an air inlet pipe and an air outlet pipe are inserted on the bottom side wall of the control box. Check valves are arranged on the outer walls of the air inlet pipe and the air outlet pipe.

[0010] Further, the output end of the air outlet pipe is connected with an air delivery pipe. The two output ends of the air delivery pipe respectively extend to one side of the inlet net plate and the outlet net plate, and a spraying and brushing strip pipe is arranged at the output end of the air delivery pipe.

[0011] Further, two groups of sewage outlets are symmetrically formed at the bottom of the treatment tank. A blocking plate is arranged at the bottom of the sewage outlet. Groove plates are slidably arranged on both sides of the blocking plate, and the groove plates are fixedly connected to the treatment tank. A second cylinder is fixedly arranged on one side of the blocking plate, and the second cylinder is fixedly connected to the bottom of the treatment tank; An inlet water pipe is inserted above the water inlet area, and an outlet water pipe is inserted on the side wall of the water outlet area.

[0012] Further, an air pump is installed at the top of the treatment tank. An exhaust pipe is arranged at the input end of the air pump. The exhaust pipe extends above the water outlet area. The output end of the air pump is connected with a purification member through a connecting pipe.

[0013] The present invention also provides a denitrification treatment method for nitrogen-containing industrial tail water, including the following two stages: Scouring stage: The wastewater is put into the treatment tank through the inlet water pipe, and the extending end of the first cylinder is controlled to extend, so as to realize the left-right swing of the packing member and scour the side walls of the packing member, the inlet net plate and the outlet net plate; Spraying and brushing stage: While the extending end of the first cylinder extends, gas is continuously conveyed into the spraying and brushing strip pipe to spray and brush the inlet net plate and the outlet net plate.

[0014] The technical effects and advantages of the present invention: The present invention controls the extension movement of the extension end of the first cylinder, and the limiting roller drives in the special-shaped groove, thereby driving the horizontal plate at the bottom to swing left and right. The swing plate is pushed by two adjusting rollers, thereby realizing the left and right swing of the packing member on the slide rail. As the packing member swings, the wastewater on both sides of the treatment tank is "impacted", realizing the flushing of the packing member, the inlet net plate and the outlet net plate, and avoiding the accumulation of sludge on the outer walls of the inlet net plate, the outlet net plate and the packing member, which affects the treatment of wastewater. The present invention, while the extension end of the first cylinder performs an extension movement, controls the connecting plate to drive the first piston rod to perform a lifting movement, realizes the lifting movement of the piston plate inside the regulation box, continuously conveys gas into the inside of the air delivery pipe, and then conveys it into the spray bar pipe. The inlet net plate is reversely sprayed through the spray nozzles, and the outlet net plate is sprayed through the spray nozzles, further improving the spraying effect on the inlet net plate and the outlet net plate. When the present invention controls the extension end of the first cylinder to perform an extension movement, it not only realizes the swing of the packing member, and as the packing member swings, the wastewater on both sides of the treatment tank is "impacted", and the packing member, the inlet net plate and the outlet net plate are flushed, avoiding the accumulation of sludge on the outer walls of the inlet net plate, the outlet net plate and the packing member, but also enables the connecting plate to drive the first piston rod to perform a lifting movement, continuously conveys gas into the spray bar pipe, and sprays the inlet net plate and the outlet net plate. From the two perspectives of flushing and spraying, it jointly ensures the treatment effect of the treatment tank on wastewater. Description of the Drawings

[0015] Figure 1 It is a three-dimensional external view of the overall structure in the present invention.

[0016] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the treatment tank in the present invention.

[0017] Figure 3 It is a three-dimensional connection diagram of the packing member and the slide rail in the present invention.

[0018] Figure 4 It is a three-dimensional structure diagram of the flushing assembly in the present invention.

[0019] Figure 5 It is a three-dimensional rear view of the overall structure in the present invention.

[0020] Figure 6 It is a front view of the internal structure of the regulation box in the present invention.

[0021] Figure 7 It is a three-dimensional diagram of the spraying member in the present invention.

[0022] Figure 8 It is a three-dimensional diagram of the gas treatment member in the present invention.

[0023] The reference numerals are: 1, treatment tank; 2, water inlet pipe; 3, flushing component; 31, support plate; 32, spraying and brushing member; 321, connecting plate; 322, control box; 323, first piston rod; 324, air outlet pipe; 325, piston plate; 326, air delivery pipe; 327, spraying and brushing strip pipe; 33, first cylinder; 34, lifting plate; 35, limiting roller; 36, special-shaped groove; 37, lower fixing plate; 38, cross plate; 39, adjusting roller; 310, limiting pin; 311, swinging plate; 4, packing member; 5, outlet mesh plate; 6, inlet mesh plate; 7, slide rail; 8, sewage outlet; 91, groove plate; 92, blocking plate; 101, air pump; 102, purification member; 103, connecting pipe; 104, exhaust pipe. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1: Please refer to Figures 1-8 As shown, for the problem in the prior art that the outer wall of the tank cannot be flushed and sprayed during the continuous wastewater treatment process, and to jointly ensure the wastewater treatment effect in the tank from the two perspectives of flushing and spraying, the following solutions can be adopted; In this embodiment, a nitrogen-containing industrial wastewater denitrification treatment device includes a treatment tank 1 and a packing member 4 slidably arranged inside it. Here, it needs to be explained that: symmetrically fixed on the bottom wall of the treatment tank 1 are slide rails 7, the bottom of the treatment tank 1 is slidably matched with the slide rails 7, and rollers are provided at the contact between the treatment tank 1 and the slide rails 7 to reduce the friction at the connection between the two; The inside of the packing member 4 is phosphorus-removing packing, and an aerator is arranged below the packing member 4. Micro-pore or perforated pipe aerators are arranged in the tank to re-oxygenate the flowing sewage, forming multiple A / O and nitrification / denitrification chains to enhance the denitrification effect and the removal effect of refractory organic matter. The aerator is a micro-pore or perforated pipe aerator. To avoid being impacted by the packing, a solid grid structure member is arranged above the aerator. The particle size of the phosphorus-removing packing is 20 - 50 mm, and it is a material rich in calcium, iron, magnesium and other ions with high adsorption performance and high reaction activity; An inlet mesh plate 6 and an outlet mesh plate 5 are respectively installed at both ends of the treatment tank 1, and an inlet water area is formed between the inlet mesh plate 6 and the inner wall of the treatment tank 1, and an outlet water area is formed between the outlet mesh plate 5 and the inner wall of the treatment tank 1. A water inlet pipe 2 is vertically inserted above the inlet water area, and a water outlet pipe is inserted into the side wall of the outlet water area; Above the treatment tank 1, there is a flushing assembly 3 for brushing the outer walls of the inlet net plate 6, the outlet net plate 5, and the packing member 4. The flushing assembly 3 includes a support plate 31. A lifting plate 34 is slidably arranged on the front side of the support plate 31. A first cylinder 33 is fixedly installed on the front side of the support plate 31. The extending end of the first cylinder 33 is fixedly connected to the lifting plate 34. A special-shaped groove 36 is formed on the outer wall of the lifting plate 34. A lower fixing plate 37 is arranged on the rear side of the lifting plate 34. A limiting roller 35 is installed on the front side of the lower fixing plate 37, and the limiting roller 35 is in transmission cooperation with the special-shaped groove 36; the special-shaped groove 36 is a regular wave shape; The middle part of the lower fixing plate 37 is rotationally connected to the support plate 31 through a limit pin 310. A cross plate 38 is fixedly installed at the bottom of the lower fixing plate 37. Two groups of adjusting rollers 39 are symmetrically arranged at the bottom of the cross plate 38. A swing plate 311 is arranged between the two adjusting rollers 39. A swing groove is formed at the top of the treatment tank 1, and the swing plate 311 is located in the swing groove and its bottom is fixedly connected to the packing member 4; Then control the extending end of the first cylinder 33 to perform an extending movement. The limiting roller 35 is in transmission in the special-shaped groove 36, thereby driving the cross plate 38 at the bottom to swing left and right. The swing plate 311 is pushed by the two adjusting rollers 39, thereby realizing the left and right sliding of the packing member 4 on the slide rail 7. As the packing member 4 swings left and right, the wastewater on both sides of the treatment tank 1 is "impacted", thereby realizing the flushing of the packing member 4, the inlet net plate 6, and the outlet net plate 5; A spraying and brushing member 32 is arranged on the rear side of the support plate 31. The spraying and brushing member 32 includes a connecting plate 321 fixedly connected to the extending end of the first cylinder 33. A first piston rod 323 is fixedly arranged at the bottom of the connecting plate 321. A control box 322 is arranged at the top of the treatment tank 1. The bottom of the first piston rod 323 movably penetrates into the control box 322 and is fixedly provided with a piston plate 325. The piston plate 325 is slidably matched with the control box 322. An air inlet pipe and an air outlet pipe 324 are inserted on the bottom side wall of the control box 322. One-way valves are arranged on the outer walls of the air inlet pipe and the air outlet pipe 324; and the control box 322 is connected to the bottom of the support plate 31; Gas enters the interior of the control box 322 through the air inlet pipe. When the piston plate 325 moves downward, it is discharged through the air outlet pipe 324, and then the gas inside the air outlet pipe 324 is conveyed into the air delivery pipe 326 to realize the delivery and utilization of the gas; The output end of the air outlet pipe 324 is connected to an air delivery pipe 326. The two output ends of the air delivery pipe 326 respectively extend to one side of the inlet net plate 6 and the outlet net plate 5, and a spraying and brushing strip pipe 327 is arranged at the output end of the air delivery pipe 326; the spraying and brushing strip pipe 327 is composed of three mutually connected strip pipes, and multiple groups of spray heads are installed on the side walls of the strip pipes facing the inlet net plate 6 and the outlet net plate 5; While the extending end of the first cylinder 33 extends and resets, the connecting plate 321 drives the first piston rod 323 to move up and down, thereby realizing the lifting movement of the piston plate 325 inside the regulation box 322, continuously delivering gas into the inside of the air delivery pipe 326, and then delivering it into the spray bar pipe 327, and spraying and brushing the inlet net plate 6 and the outlet net plate 5 through the nozzles, further improving the spraying and brushing effects on the inlet net plate 6 and the outlet net plate 5, and cooperating with the "impact" of the wastewater to jointly ensure the treatment effect of the treatment tank 1 on the wastewater; Embodiment 2: An improvement is made on the basis of Embodiment 1. Please refer to Figures 2-3 As shown, two groups of sewage outlets 8 are symmetrically arranged at the bottom of the treatment tank 1. A blocking plate 92 is arranged at the bottom of the sewage outlet 8. Groove plates 91 are slidably arranged on both sides of the blocking plate 92, and the groove plates 91 are fixedly connected with the treatment tank 1. A second cylinder is fixedly arranged on one side of the blocking plate 92, and the second cylinder is fixedly connected with the bottom of the treatment tank 1; The blocking plate 92 is in close contact with the bottom of the treatment tank 1, and a rubber pad is further arranged above the blocking plate 92 to prevent the liquid inside the treatment tank 1 from leaking out; Please refer to Figures 2-3 、 Figure 5 、 Figure 8 As shown, an air pump 101 is installed at the top of the treatment tank 1. An exhaust pipe 104 is arranged at the input end of the air pump 101, and the exhaust pipe 104 extends to the water outlet area. The output end of the air pump 101 is connected with a purification component 102 through a connecting pipe 103; The air pump 101 is a functional device with the function of conveying gas in the prior art, belonging to the prior art, and will not be elaborated here too much; It should be supplemented and explained here that: The purification component 102 is composed of a purification box and an activated carbon plate, and the gas discharged from the treatment box is purified by the activated carbon, belonging to the prior art; In this embodiment: After long-term use, sludge accumulates at the bottom of the treatment tank 1. The wastewater treatment is suspended, and the second cylinder is controlled to contract, so that the sludge at the bottom is discharged through the sewage outlet 8, realizing the removal of the sludge; It can be seen from combining Embodiment 1 and Embodiment 2 in the present invention that: When controlling the extending end of the first cylinder 33 to perform an extending movement, not only the swinging of the packing member 4 is realized, and with the swinging of the packing member 4, the wastewater on both sides of the treatment tank 1 is "impacted", and the packing member 4, the inlet net plate 6 and the outlet net plate 5 are washed, avoiding the accumulation of sludge on the outer walls of the inlet net plate 6, the outlet net plate 5 and the packing member 4, but also the connecting plate 321 can drive the first piston rod 323 to move up and down, continuously delivering gas into the spray bar pipe 327, and spraying and brushing the inlet net plate 6 and the outlet net plate 5. Starting from the two aspects of washing and spraying, the treatment effect of the treatment tank 1 on the wastewater is jointly ensured; Working principle: When the present invention is in use, wastewater is input into the interior of the treatment tank 1 through the water inlet pipe 2, and the extending end of the first cylinder 33 is controlled to perform an extending movement. The limiting roller 35 drives within the special-shaped groove 36, thereby driving the horizontal plate 38 at the bottom to swing left and right. The swing plate 311 is pushed by the two adjusting rollers 39, thereby realizing the left and right swing of the packing member 4 on the slide rail 7. As the packing member 4 swings left and right, the wastewater on both sides of the treatment tank 1 is "impacted", thereby realizing the flushing of the packing member 4, the inlet net plate 6, and the outlet net plate 5, and preventing sludge from accumulating on the outer walls of the inlet net plate 6, the outlet net plate 5, and the packing member 4, which affects the treatment of wastewater; While the extending end of the first cylinder 33 performs an extending movement, the connecting plate 321 drives the first piston rod 323 to perform a lifting movement, thereby realizing the lifting movement of the piston plate 325 within the regulation box 322, continuously delivering gas into the interior of the air delivery pipe 326, and then delivering it into the spray brush strip pipe 327. The inlet net plate 6 is reversely sprayed through the nozzles, and the outlet net plate 5 is sprayed through the nozzles, thereby further improving the spraying effect on the inlet net plate 6 and the outlet net plate 5. In cooperation with the "impact" of the wastewater, starting from the two aspects of flushing and spraying, jointly ensuring the treatment effect of the treatment tank 1 on the wastewater; After long-term use, sludge accumulates at the bottom of the treatment tank 1. The wastewater treatment is paused, and the second cylinder is controlled to contract, so that the sludge at the bottom is discharged through the sludge outlet 8, realizing the removal of the sludge.

[0026] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A nitrogen-containing industrial tail water denitrification treatment device, comprising a treatment tank (1) and a packing member (4) slidably arranged inside the treatment tank, characterized in that: An aerator is provided below the filler (4); a mesh inlet plate (6) and a mesh outlet plate (5) are respectively installed at both ends of the treatment tank (1); a water inlet area is formed between the mesh inlet plate (6) and the inner wall of the treatment tank (1); a water outlet area is formed between the mesh outlet plate (5) and the inner wall of the treatment tank (1); and a flushing component (3) for brushing the mesh plate and the outer wall of the filler (4) is provided above the treatment tank (1); The flushing assembly (3) comprises a support plate (31), a lifting plate (34) is slidably arranged on the support plate (31), a cylinder (33) is also mounted on the support plate (31), the protruding end of the cylinder (33) is connected to the lifting plate (34), a special-shaped groove (36) is provided on the outer wall of the lifting plate (34), a lower fixed plate (37) is arranged on the rear side of the lifting plate (34), a limiting roller (35) is mounted on the lower fixed plate (37), and the limiting roller (35) is in transmission cooperation with the special-shaped groove (36).

2. A nitrogen-containing industrial tail water denitrification treatment device according to claim 1, characterized in that: The middle portion of the lower fixed plate (37) is rotatably connected to the support plate (31) via a limit pin (310); a transverse plate (38) is fixedly mounted on the bottom of the lower fixed plate (37); two groups of adjusting rollers (39) are symmetrically arranged at the bottom of the transverse plate (38); and a swing plate (311) is arranged between the two adjusting rollers (39).

3. A nitrogen-containing industrial tail water denitrification treatment device according to claim 2, characterized in that: The top of the processing tank (1) is provided with a swinging groove, and the swinging plate (311) is located in the swinging groove and its bottom is fixedly connected to the filling member (4).

4. The nitrogen-containing industrial tail water denitrification treatment device according to claim 1 is characterized in that: A spray brush member (32) is arranged at the rear side of the support plate (31), the spray brush member (32) comprising a connecting plate (321) connected to the protruding end of the cylinder 1 (33), a piston rod 1 (323) is arranged at the bottom of the connecting plate (321), and a regulating box (322) is arranged at the top of the treatment tank (1), and the top of the regulating box (322) is connected to the support plate (31).

5. A nitrogen-containing industrial tail water denitrification treatment device according to claim 4, characterized in that: The bottom of the piston rod 1 (323) movably penetrates into the regulating box (322) and is provided with a piston plate (325), and the piston plate (325) is slidably matched with the regulating box (322).

6. A nitrogen-containing industrial tail water denitrification treatment device according to claim 5, characterized in that: An air inlet pipe and an air outlet pipe (324) are inserted into the bottom side wall of the control box (322), and one-way valves are arranged on the outer walls of the air inlet pipe and the air outlet pipe (324).

7. A nitrogen-containing industrial tail water denitrification treatment device according to claim 6, characterized in that: The output end of the air outlet pipe (324) is connected to an air supply pipe (326), the two output ends of the air supply pipe (326) respectively extend to one side of the mesh inlet plate (6) and the mesh outlet plate (5), and a spray strip pipe (327) is provided at the output end of the air supply pipe (326).

8. The nitrogen-containing industrial tail water denitrification treatment device according to claim 1 is characterized in that: Two groups of sewage outlets (8) are symmetrically provided at the bottom of the treatment tank (1), a blocking plate (92) is provided at the bottom of the sewage outlet (8), groove plates (91) are slidably provided on both sides of the blocking plate (92), and the groove plates (91) are fixedly connected to the treatment tank (1), and a cylinder 1 (33) is fixedly provided on one side of the blocking plate (92), and the cylinder 1 (33) is fixedly connected to the bottom of the treatment tank (1); A water inlet pipe (2) is inserted above the water inlet area, and a water outlet pipe is inserted on the side wall of the water outlet area.

9. The nitrogen-containing industrial tail water denitrification treatment device according to claim 1, characterized in that: An air pump (101) is installed on the top of the treatment tank (1); an exhaust pipe (104) is provided at the input end of the air pump (101); the exhaust pipe (104) extends to above the water outlet area; and an output end of the air pump (101) is connected to a purification component (102) via a connecting pipe (103).

10. A method for denitrification of nitrogen-containing industrial tail water, used in a denitrification device for nitrogen-containing industrial tail water as claimed in any one of claims 1 to 9, characterized in that: It includes the following two stages: Flushing stage: wastewater is introduced into the treatment tank (1) through the water inlet pipe (2), and the extended end of the cylinder (33) is controlled to stretch to achieve left-right swing of the packing member (4), thereby flushing the side walls of the packing member (4), the mesh inlet plate (6) and the mesh outlet plate (5); Brushing stage: while the extended end of the cylinder 1 (33) is extending, gas is continuously delivered to the brushing strip tube (327) to brush the inlet screen plate (6) and the outlet screen plate (5).

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