Pickling wastewater circulating treatment device and treatment method thereof

Abstract

The invention provides a pickling wastewater circulation treatment device which comprises a sedimentation tank, a plurality of threaded cylinders are fixedly arranged at the bottom of a water distribution pipe, threads are arranged on the inner side of each threaded cylinder, the threaded cylinders are in threaded connection with a plurality of spiral water pipes, an auxiliary sedimentation mechanism is further arranged in the water distribution pipe, and the auxiliary sedimentation mechanism is in threaded connection with the spiral water pipes. The invention relates to the technical field of pickling wastewater treatment, a water distribution pipe, a spiral water pipe and a buffer plate are arranged on a water inlet pipeline, so that the flow rate of wastewater entering the sedimentation tank is greatly reduced, and the flow rate of the wastewater entering the sedimentation tank is greatly reduced; therefore, the phenomena of short flow and turbulent flow caused by non-uniform water flow distribution are effectively avoided, sufficient retention time of wastewater in the sedimentation tank is ensured, and the sedimentation efficiency of suspended matters is improved; and secondly, a synchronous dosing assembly is arranged on the water distribution pipe, so that when the wastewater is discharged into the sedimentation tank, a flocculating agent can be fully mixed with the wastewater, and the flocculation effect of suspended solids is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of pickling wastewater treatment, and in particular to a pickling wastewater circulation treatment device and a treatment method thereof. Background Art

[0002] In the existing pickling wastewater treatment technology, the sedimentation tank is a key treatment unit, which directly affects the effect of wastewater treatment. The traditional sedimentation tank has some defects in the design of the water inlet, mainly manifested in the excessive flow rate at the water inlet, which leads to uneven water flow distribution when the wastewater enters the sedimentation tank. This uneven water flow is prone to short-flow and turbulence. The short-flow phenomenon will cause the wastewater to stay in the sedimentation tank for insufficient time, and the suspended matter cannot be fully settled, affecting the sedimentation effect, while the turbulence will disturb the settled suspended matter, thereby reducing the sedimentation efficiency and sedimentation effect. At the same time, traditional sedimentation tanks often lack effective flocculant addition and mixing systems, making it difficult for suspended matter to form larger flocs, further reducing the sedimentation efficiency. Summary of the invention

[0003] The object of the present invention is to provide a pickling wastewater circulation treatment device and a treatment method thereof. The invention aims to solve the problem that wastewater is prone to uneven water flow distribution when entering a sedimentation tank and the problem that the sedimentation efficiency of a traditional sedimentation tank is low. This uneven water flow is likely to cause short-flow and turbulence. The short-flow phenomenon will cause the wastewater to have insufficient residence time in the sedimentation tank, making it impossible to fully settle the suspended matter, thereby affecting the sedimentation effect, while the turbulence will disturb the already settled suspended matter, thereby reducing the sedimentation efficiency and the sedimentation effect.

[0004] The present invention provides a pickling wastewater circulation treatment device, comprising a sedimentation tank, wherein the sedimentation tank comprises a tank body, two guide walls and a water inlet pipeline, wherein the two guide walls are fixedly arranged in the tank body, the water inlet pipeline is fixedly penetrated through the left side of the tank body, a water distribution pipe is fixedly arranged at one end of the water inlet pipeline, the outer wall of the water distribution pipe is fixedly connected to the left side of the tank body, both ends of the water distribution pipe are closed structures, the water inlet pipeline is connected to the water distribution pipe, a plurality of threaded barrels are fixedly arranged at the bottom of the water distribution pipe, and the inner side of each of the threaded barrels is provided with threads, A plurality of the threaded tubes are threadedly connected with a plurality of spiral water pipes, and the plurality of the spiral water pipes are connected with the water distribution pipe. The upper end of the spiral water pipe is a water inlet, and the end of the spiral water pipe is a water outlet. The diameter of the end of the spiral water pipe gradually increases. An auxiliary sedimentation mechanism is also provided in the water distribution pipe. The auxiliary sedimentation mechanism is used to accelerate the sedimentation of wastewater in the water distribution pipe. An auxiliary slow flow component is also fixedly provided on the left side of the pool body. The auxiliary slow flow component is used to further buffer the wastewater discharged from the spiral water pipe and improve the sedimentation effect of the auxiliary sedimentation mechanism.

[0005] Preferably, the auxiliary sedimentation mechanism includes two dosing tubes, two one-way valves and a drug mixing assembly, one end of the two dosing tubes is fixedly connected to the top of the water distribution pipe, and the two dosing tubes are communicated with the water distribution pipe, the two one-way valves are respectively connected to the two dosing tubes, and the drug mixing assembly is connected to the water distribution pipe.

[0006] Preferably, the medicine mixing assembly includes a driving shaft, a driving motor and multiple stirring shafts, the driving shaft is rotatably connected to the two ends of the water distribution pipe and the front and rear sides of the pool body through sealed bearings, the driving motor is fixedly arranged on the outer rear side of the pool body, and the driving end of the driving motor is fixedly connected to one end of the driving shaft, and one end of the multiple stirring shafts is fixedly arranged on the driving shaft.

[0007] Preferably, the auxiliary slow-flow component includes an inclined plate, which is fixedly arranged on the left side of the pool body and inclined toward the guide wall to form a decreasing height from left to right.

[0008] Preferably, the auxiliary flow-slowing component further comprises a plurality of ribs, the plurality of ribs are fixedly arranged on the top of the inclined plate, and the plurality of ribs are arranged in sequence from left to right.

[0009] Preferably, a plurality of groups of buffer plates are fixedly provided on the inner wall of the spiral water pipe, the number of buffer plates in each group is three, and each buffer plate is provided with a buffer hole, the shapes of the buffer holes include honeycomb and circular, and the honeycomb buffer holes and the circular buffer holes are alternately arranged on the buffer plate, and adjacent circular buffer holes are staggered on the buffer plate.

[0010] Preferably, a plurality of groups of dispersion plates are fixedly arranged on the top of the water distribution pipe, the number of the dispersion plates in each group is two, and the two dispersion plates are respectively located on the left and right sides of the stirring shaft.

[0011] Preferably, the length of the end of the spiral water pipe is extended by 10-15 cm.

[0012] Preferably, it also includes two guide pipes and a water outlet pipe, the two guide walls respectively divide the pool body into a primary sedimentation area, a secondary sedimentation area and a water outlet area, the two guide pipes are respectively fixedly passed through the two guide walls, and the water outlet pipe is fixedly passed through the right side of the pool body.

[0013] Preferably, a treatment method of a pickling wastewater circulation treatment device comprises the following steps: Drainage and distribution: The pickling wastewater is introduced into the water distribution pipe through the water inlet pipeline; Synchronous dosing: The auxiliary sedimentation mechanism adds flocculants to the wastewater in the water distribution pipe synchronously to achieve preliminary mixing of the flocculants and wastewater; Even distribution of water flow: The water distribution pipe will then evenly distribute the wastewater to each spiral water pipe to ensure even distribution of water flow; Auxiliary sedimentation: The auxiliary slow-flow component is located at the outlet of the spiral water pipe to further buffer the water flow, improve the mixing effect of flocculant and wastewater, and prepare for subsequent sedimentation treatment; Water discharge step: The wastewater after sedimentation treatment is discharged from the sedimentation tank.

[0014] The present invention provides a pickling wastewater circulation treatment device and a treatment method thereof through improvements. Compared with the prior art, the present invention has the following improvements and advantages: the present invention greatly reduces the flow rate of wastewater when entering the sedimentation tank by arranging a water distribution pipe, a spiral water pipe and a buffer plate on the water inlet pipeline, thereby effectively avoiding the short-flow and turbulence caused by uneven water flow distribution, ensuring that the wastewater has sufficient residence time in the sedimentation tank, and improving the sedimentation efficiency of suspended matter; secondly, the synchronous dosing component arranged on the water distribution pipe enables the flocculant to be fully mixed with the wastewater when the wastewater is discharged into the sedimentation tank, promotes the flocculation of suspended matter, and further improves the sedimentation efficiency; in addition, the length extension design of the end of the spiral water pipe and the setting of the auxiliary slow flow component effectively alleviate the turbulence, ensure the smooth flow of water in the sedimentation tank, and reduce the re-suspension of suspended matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a pickling wastewater circulation treatment device of the present invention; Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of a pickling wastewater circulation treatment device of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a water distribution pipe, a spiral water pipe and an auxiliary sedimentation mechanism of a pickling wastewater circulation treatment device of the present invention; Figure 4 for Figure 3 A schematic diagram of a side view structure; Figure 5 It is a schematic diagram of the three-dimensional structure of a spiral water pipe of a pickling wastewater circulation treatment device of the present invention; Figure 6 It is a schematic diagram of the side cross-sectional structure of a spiral water pipe of a pickling wastewater circulation treatment device of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of an auxiliary slow-flow component of a spiral water pipe of a pickling wastewater circulation treatment device of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of a buffer plate of a spiral water pipe of a pickling wastewater circulation treatment device of the present invention; Fig. 9 for Figure 4 Schematic diagram of the enlarged structure of position A.

[0017] Description of reference numerals: 1. Sedimentation tank; 11. Tank body; 12. Diversion wall; 13. Water inlet pipeline; 14. Diversion pipe; 15. Water outlet pipe; 2. Water distribution pipe; 3. Threaded cylinder; 4. Spiral water pipe; 5. Auxiliary sedimentation mechanism; 51. Dosing pipe; 52. One-way valve; 53. Mixing component; 53-1. Drive shaft; 53-2. Drive motor; 53-3. Stirring shaft; 6. Auxiliary slow flow component; 61. Inclined plate; 62. Ribs; 7. Buffer plate; 8. Disperser plate. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiment 1

[0022] See also Figure 1-9The present invention provides a technical solution: a pickling wastewater circulation treatment device, including a sedimentation tank 1, the sedimentation tank 1 includes a tank body 11, two guide walls 12 and a water inlet pipe 13, the two guide walls 12 are fixedly arranged in the tank body 11, and the water inlet pipe 13 is fixedly passed through the left side of the tank body 11. The tank body 11, the two guide walls 12 and the water inlet pipe 13 in the sedimentation tank 1 are all existing equipment in the field, so they are not introduced in detail here. A water distribution pipe 2 is fixedly arranged at one end of the water inlet pipe 13, and the outer wall of the water distribution pipe 2 is fixedly connected to the left side of the tank body 11. Both ends of the water distribution pipe 2 are closed structures. The closed structure of the water distribution pipe 2 prevents the wastewater from flowing in the water distribution pipe 2. Leakage and bypass during the distribution process ensure that the wastewater can flow according to the path. The water inlet pipe 13 is connected to the water distribution pipe 2. The connectivity between the water inlet pipe 13 and the water distribution pipe 2 ensures that the wastewater flows smoothly from the water inlet pipe 13 into the water distribution pipe 2, and then is evenly distributed to the subsequent spiral water pipe 4 through the water distribution pipe 2. A plurality of threaded barrels 3 are fixedly arranged at the bottom of the water distribution pipe 2. The inner side of each threaded barrel 3 is provided with threads. A plurality of spiral water pipes 4 are threadedly connected to the plurality of threaded barrels 3. The threaded barrels 3 are connected to the plurality of spiral water pipes 4 by threaded connection, so that the spiral water pipes 4 can be firmly installed on the water distribution pipe 2, and the spiral water pipes 4 are connected The water distribution pipes 2 are detachably connected to facilitate later maintenance and replacement. Multiple spiral water pipes 4 are connected to the water distribution pipes 2 to achieve effective transfer and distribution of wastewater between the water distribution pipes 2 and the spiral water pipes 4. The upper end of the spiral water pipe 4 is a water inlet, and the end of the spiral water pipe 4 is a water outlet. Wastewater enters from the upper end of the spiral water pipe 4, passes through the spiral water pipe 4, and is discharged through the end. The diameter of the end of the spiral water pipe 4 gradually increases. The directly discharged water inlet pipe 13 may cause the water flow to directly pass through the sedimentation tank 1, forming a short flow. Due to the special shape of the spiral water pipe 4 itself, the spiral water pipe 4 extends the water flow path of the wastewater. diameter, which reduces the water flow speed and can effectively disperse the water flow, reduce short-flow and turbulence phenomena. After multiple streams of water pass through the spiral water pipe 4, they are evenly distributed, which is beneficial to the sedimentation of suspended matter and helps to improve the overall treatment efficiency of the sedimentation tank 1. The diameter of the end part of the spiral water pipe 4 gradually expands, which helps to smooth the water flow and reduce the generation of turbulence. An auxiliary sedimentation mechanism 5 is also provided in the water distribution pipe 2. The auxiliary sedimentation mechanism 5 is used to accelerate the sedimentation of wastewater in the water distribution pipe 2. An auxiliary slow-flow component 6 is also fixedly provided on the left side of the tank body 11. The auxiliary slow-flow component 6 is used to further buffer the wastewater discharged from the spiral water pipe 4 and improve the sedimentation effect of the auxiliary sedimentation mechanism 5.

[0023] Specifically, the auxiliary sedimentation mechanism 5 includes two dosing pipes 51, two one-way valves 52 and a mixing component 53. One end of the two dosing pipes 51 is fixedly connected to the top of the water distribution pipe 2, and the two dosing pipes 51 are communicated with the water distribution pipe 2. The other end of the dosing pipe 51 is connected to an external drug supply device. The drug supply device is an existing device in this field. It can be a drug supply device composed of a pump body and a dosing box, but it is not limited to this. Therefore, no further introduction is made here. The dosing amount of the dosing pipe 51 is controlled and adjusted according to actual needs. The two one-way valves 52 are respectively connected to the two dosing pipes 51. The function of the one-way valve 52 is to ensure that the agent can only flow into the water distribution pipe 2 in one direction to prevent the agent from flowing back, thereby ensuring the accuracy and efficiency of the dosing. The mixing component 53 is connected to the water distribution pipe 2. The mixing component 53 fully mixes the added agent with the wastewater to ensure that the agent is evenly distributed in the water flow, thereby improving the flocculation effect.

[0024] Specifically, the drug mixing assembly 53 includes a drive shaft 53-1, a drive motor 53-2, and a plurality of stirring shafts 53-3. The drive shaft 53-1 is rotatably connected to the two ends of the water distribution pipe 2 and the front and rear sides of the pool body 11 through sealed bearings. The sealed bearings enable the drive shaft 53-1 to rotate smoothly in the pool body 11 without causing leakage. The drive motor 53-2 is fixedly arranged on the rear side outside the pool body 11, and the drive end of the drive motor 53-2 is fixedly connected to one end of the drive shaft 53-1. One end of the plurality of stirring shafts 53-3 is fixedly arranged on the drive shaft 53-1. In the water distribution pipe 2, the drive end of the drive motor 53-2 can drive the drive shaft 53-1 and the stirring shaft 53-3 to rotate, thereby quickly mixing the wastewater and flocculant in the water distribution pipe 2.

[0025] Specifically, the auxiliary slow flow component 6 includes an inclined plate 61, which is fixedly arranged on the left side of the pool body 11 and inclined in the direction of the guide wall 12 to form a decreasing height from left to right, so as to achieve a smooth transition and deceleration of the water flow before entering the sedimentation area, thereby effectively reducing the impact of the water flow on the bottom of the sedimentation area and improving the sedimentation efficiency of suspended matter. The setting of the inclined plate 61 can make the water flow inside the spiral water pipe 4 undergo a smooth transition and deceleration process before entering the sedimentation area, effectively reducing the impact force of the water flow on the bottom of the sedimentation area, thereby creating a more suitable environment for the sedimentation of suspended matter and improving the sedimentation efficiency. At the same time, it also prolongs the contact time between the water flow and the flocculant for further sufficient mixing.

[0026] Specifically, the auxiliary slow flow component 6 further includes a plurality of ribs 62, which are fixedly arranged on the top of the inclined plate 61, and the plurality of ribs 62 are arranged in sequence from left to right. The function of these ribs 62 is to further break up and guide the water flow so that it can be more evenly distributed when passing through the inclined plate 61, reduce short-flow and turbulence, and also enhance the slow flow effect of the inclined plate 61 on the water flow.

[0027] Specifically, multiple groups of buffer plates 7 are fixedly arranged on the inner wall of the spiral water pipe 4, and the number of each group of buffer plates 7 is three, and each buffer plate 7 is provided with a buffer hole, and the shape of the buffer hole includes honeycomb and circular, and the honeycomb buffer hole and the circular buffer hole are alternately arranged on the buffer plate 7, and the adjacent circular buffer holes are arranged in a staggered manner on the buffer plate 7. The buffer plate 7 optimizes the flow characteristics of the water flow by changing the direction and speed of the water flow. On each buffer plate 7, there are buffer holes, and the design of these buffer holes adopts two different shapes, namely honeycomb and circular, and they are arranged in an alternating manner on the buffer plate 7. This arrangement can make the water flow more effectively buffered and dispersed when passing through the buffer hole, thereby reducing the speed of the water flow. In addition, the adjacent circular buffer holes are arranged in a staggered manner on the buffer plate 7. This staggered design further enhances the mixing and deceleration effect of the water flow when passing through, and avoids the water flow from forming a high-speed direct current water beam in the spiral water pipe 4, thereby not only effectively reducing the water flow speed, but also reducing the impact of the water flow on the pipe wall.

[0028] Specifically, multiple groups of dispersion plates 8 are fixedly arranged at the top of the water distribution pipe 2, each group of dispersion plates 8 has two dispersion plates 8, and the two dispersion plates 8 are respectively located on the left and right sides of the stirring shaft 53-3. The dispersion plates 8 and the stirring shaft 53-3 are offset, which enables shear force to be generated between the dispersion plates 8 and the stirring shaft 53-3 during the mixing process. This shear force promotes more complete mixing of the reagents in the wastewater and the water flow, thereby significantly improving the mixing effect.

[0029] Specifically, the length of the end of the spiral water pipe 4 is extended by 10-15 cm. The extension of the length further enhances the buffering effect of the water flow, reduces the impact force of the water flow at the outlet of the spiral water pipe 4, and enables the water flow to transition to the inclined plate 61 more smoothly when leaving the water pipe.

[0030] Specifically, it also includes two guide pipes 14 and an outlet pipe 15. The two guide walls 12 respectively divide the tank body 11 into a primary sedimentation area, a secondary sedimentation area and an outlet area. The two guide pipes 14 are fixedly passed through the two guide walls 12, and the outlet pipe 15 is fixedly passed through the right side of the tank body 11. The two guide pipes 14 are fixedly passed through the two guide walls 12, and their main function is to connect different sedimentation areas, ensure the smooth transition of wastewater between various areas, and maintain the liquid level balance of each area. The outlet pipe 15 is fixedly passed through the right side of the tank body 11, and its function is to guide the clean water after two-stage sedimentation treatment from the tank body 11 to the next treatment stage or direct discharge.

[0031] In the pickling wastewater circulation treatment device, the water distribution pipe 2, the spiral water pipe 4, the buffer plate 7, the inclined plate 61 and the ribs 62 and other components together constitute a collaborative system. The functions of each component complement each other, jointly ensuring the high efficiency of wastewater treatment and the optimization of sedimentation effect.

[0032] The water distribution pipe 2 is the entrance of the system and is responsible for evenly distributing the wastewater to multiple spiral water pipes 4, which is the key to ensuring the uniformity of the subsequent treatment steps of the entire system. The spiral water pipe 4 uses its spiral structure to make the wastewater produce a rotating motion during the flow process, which not only reduces the impact of the water flow on the bottom of the sedimentation tank 1, but also helps the sedimentation of suspended matter and promotes the full mixing of flocculants and wastewater. The extended design at the end of the spiral water pipe 4 further slows down the water flow speed and prevents the generation of turbulence.

[0033] The buffer plate 7 is installed on the inner wall of the spiral water pipe 4. Its design adopts buffer holes of different shapes and arrangements to optimize the buffering and dispersion effect of the water flow, further reduce the water flow velocity, reduce the impact on the sedimentation tank 1, and improve the mixing efficiency of the flocculant and wastewater.

[0034] The function of the inclined plate 61 is to achieve a smooth transition and deceleration of the water flow before entering the sedimentation area. Its fixed setting and inclined angle effectively reduce the impact of the water flow on the bottom of the sedimentation area and improve the sedimentation efficiency of suspended matter.

[0035] The ribs 62 are fixed on the top of the inclined plate 61 and arranged in sequence. They break up and guide the water flow so that it is more evenly distributed when passing through the inclined plate 61, reducing short-flow and turbulence, and enhancing the slow-flow effect of the inclined plate 61, thereby maximizing the mixing effect of the flocculant and the wastewater.

[0036] The combined use of these components is indispensable, because their respective functions are interdependent and together constitute an efficient wastewater treatment process. The lack of any component will destroy the synergy of the entire system, resulting in poor sedimentation effect and reduced overall efficiency of wastewater treatment. The water distribution pipe 2 ensures the uniform distribution of wastewater, the spiral water pipe 4 and the buffer plate 7 work together to reduce the water flow speed and impact, and the inclined plate 61 and the ribs 62 ensure the smooth transition and uniform distribution of the water flow before the sedimentation area. The combined use of all these components is to achieve efficient and stable operation of the wastewater treatment system and ensure the best sedimentation effect and treatment efficiency.

[0037] Working principle: First, wastewater is introduced into the water distribution pipe 2 through the water inlet pipe 13. At the same time, two dosing pipes 51 synchronously add flocculants into the wastewater. The dosage of the flocculant is controlled and adjusted according to the actual water inlet volume of the water inlet pipe 13. The driving motor 53-2 realizes instant mixing of the flocculant and the wastewater in the water distribution pipe 2 through the stirring shaft 53-3, promotes the coagulation and sedimentation of suspended matter, and forms a preliminary mixing stage of the flocculant and the wastewater.

[0038] Subsequently, the wastewater is divided into multiple small streams in the water distribution pipe 2, and the water flow is dispersed through the spiral water pipe 4. The speed of the water flow is reduced when passing through the spiral water pipe 4, forming a buffer water flow, reducing the impact on the sedimentation area. At the same time, the special shape of the spiral water pipe 4 and the extension of the end slow down the flow rate, prevent turbulence, and increase the mixing time with the flocculant to enhance the mixing effect.

[0039] On the inner wall of the spiral water pipe 4, the buffer plate 7 further reduces the water flow velocity, optimizes the buffer effect, and can block the water flow through buffer holes of different shapes to achieve further mixing of the flocculant and the wastewater.

[0040] When the wastewater is discharged through the end of the spiral water pipe 4 and flows through the inclined plate 61 and the ribs 62 in the auxiliary slow-flow component 6, the inclined plate 61 and the ribs 62 realize a smooth transition of the water flow to the primary sedimentation area, reduce the water flow velocity, and reduce the impact on the bottom of the sedimentation area. At the same time, the design of the ribs 62 enhances the mixing effect of the flocculant and the wastewater, prevents turbulence, and improves the sedimentation efficiency of suspended matter.

[0041] After passing through the primary sedimentation area, the water flows into the secondary sedimentation area to complete sedimentation deepening. Finally, the wastewater after sedimentation treatment is discharged from the outlet area of ​​the sedimentation tank 1 through the outlet pipe 15, completing a complete cycle of wastewater treatment and ensuring the compliance of wastewater discharge.

[0042] Embodiment 2

[0043] In this embodiment, a treatment method of a pickling wastewater circulation treatment device is proposed, comprising the following steps: Drainage and distribution: The pickling wastewater is introduced into the water distribution pipe 2 through the water inlet pipe 13; Synchronous dosing: The auxiliary sedimentation mechanism simultaneously adds flocculant to the wastewater in the water distribution pipe 2 to achieve preliminary mixing of the flocculant and the wastewater; Even distribution of water flow: The water distribution pipe 2 will then evenly distribute the wastewater to each spiral water pipe 4 to ensure even distribution of water flow; Auxiliary sedimentation: The auxiliary slow-flow component 6 is located at the outlet of the spiral water pipe 4 to further buffer the water flow, improve the mixing effect of the flocculant and the wastewater, and prepare for subsequent sedimentation treatment; Water discharge step: The wastewater after sedimentation treatment is discharged from sedimentation tank 1.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pickling wastewater circulation treatment device, comprising a sedimentation tank (1), wherein the sedimentation tank (1) comprises a tank body (11), two guide walls (12) and a water inlet pipeline (13), wherein the two guide walls (12) are fixedly arranged in the tank body (11), and the water inlet pipeline (13) is fixedly passed through the left side of the tank body (11), characterized in that: A water distribution pipe (2) is fixedly arranged at one end of the water inlet pipeline (13); the outer wall of the water distribution pipe (2) is fixedly connected to the left side of the pool body (11); both ends of the water distribution pipe (2) are closed structures; the water inlet pipeline (13) is connected to the water distribution pipe (2); a plurality of threaded barrels (3) are fixedly arranged at the bottom of the water distribution pipe (2); the inner side of each of the threaded barrels (3) is provided with threads; a plurality of spiral water pipes (4) are threadedly connected to the plurality of spiral water pipes (4); and the plurality of spiral water pipes (4) are connected to the water distribution pipe (2). The upper end of the spiral water pipe (4) is a water inlet, and the end of the spiral water pipe (4) is a water outlet. The diameter of the end of the spiral water pipe (4) gradually increases. An auxiliary sedimentation mechanism (5) is also provided in the water distribution pipe (2). The auxiliary sedimentation mechanism (5) is used to accelerate the sedimentation of wastewater in the water distribution pipe (2). An auxiliary slow-flow component (6) is also fixedly provided on the left side of the pool body (11). The auxiliary slow-flow component (6) is used to further buffer the wastewater discharged from the spiral water pipe (4) and improve the sedimentation effect of the auxiliary sedimentation mechanism (5).

2. A pickling wastewater circulation treatment device according to claim 1, characterized in that: The auxiliary sedimentation mechanism (5) comprises two dosing pipes (51), two one-way valves (52) and a drug mixing assembly (53); one end of the two dosing pipes (51) is fixedly connected to the top of the water distribution pipe (2), and the two dosing pipes (51) are connected to the water distribution pipe (2); the two one-way valves (52) are respectively connected to the two dosing pipes (51); and the drug mixing assembly (53) is connected to the water distribution pipe (2).

3. A pickling wastewater circulation treatment device according to claim 2, characterized in that: The medicine mixing component (53) comprises a driving shaft (53-1), a driving motor (53-2) and a plurality of stirring shafts (53-3); the driving shaft (53-1) is rotatably connected to the two ends of the water distribution pipe (2) and the front and rear sides of the pool body (11) respectively through sealed bearings; the driving motor (53-2) is fixedly arranged on the rear side outside the pool body (11), and the driving end of the driving motor (53-2) is fixedly connected to one end of the driving shaft (53-1); and one end of the plurality of stirring shafts (53-3) is fixedly arranged on the driving shaft (53-1).

4. A pickling wastewater circulation treatment device according to claim 3, characterized in that: The auxiliary slow flow component (6) comprises an inclined plate (61), which is fixedly arranged on the left side of the pool body (11), and the inclined plate (61) is inclined in the direction of the guide wall (12) to form a decreasing height from left to right.

5. A pickling wastewater circulation treatment device according to claim 4, characterized in that: The auxiliary slow flow component (6) further comprises a plurality of ribs (62), wherein the plurality of ribs (62) are fixedly arranged on the top of the inclined plate (61), and the plurality of ribs (62) are arranged in sequence from left to right.

6. A pickling wastewater circulation treatment device according to claim 5, characterized in that: A plurality of groups of buffer plates (7) are fixedly arranged on the inner wall of the spiral water pipe (4), each group of the buffer plates (7) has three buffer plates, and each buffer plate (7) is provided with a buffer hole, the shape of the buffer hole includes a honeycomb shape and a circular shape, and the honeycomb buffer holes and the circular buffer holes are alternately arranged on the buffer plate (7), and adjacent circular buffer holes are arranged in a staggered manner on the buffer plate (7).

7. A pickling wastewater circulation treatment device according to claim 6, characterized in that: A plurality of groups of dispersion plates (8) are fixedly arranged at the top of the water distribution pipe (2), each group of dispersion plates (8) has two dispersion plates, and the two dispersion plates (8) are respectively located on the left and right sides of the stirring shaft (53-3).

8. The pickling wastewater circulation treatment device according to claim 7 is characterized in that: The length of the end of the spiral water pipe (4) is extended by 10-15 cm.

9. A pickling wastewater circulation treatment device according to claim 8, characterized in that: It also comprises two guide pipes (14) and a water outlet pipe (15); the two guide walls (12) respectively divide the pool body (11) into a primary sedimentation area, a secondary sedimentation area and a water outlet area; the two guide pipes (14) are respectively fixedly passed through the two guide walls (12); and the water outlet pipe (15) is fixedly passed through the right side of the pool body (11).

10. A treatment method for a pickling wastewater circulation treatment device, characterized in that: The pickling wastewater recycling treatment device according to claim 1 comprises the following steps: Drainage and distribution: the pickling wastewater is introduced into the water distribution pipe (2) through the water inlet pipe (13); Synchronous dosing: the auxiliary sedimentation mechanism simultaneously adds flocculant to the wastewater in the water distribution pipe (2) to achieve preliminary mixing of the flocculant and the wastewater; Even distribution of water flow: The water distribution pipe (2) will then evenly distribute the wastewater to each spiral water pipe (4) to ensure even distribution of water flow; Auxiliary sedimentation: The auxiliary slow-flow component (6) is located at the outlet of the spiral water pipe (4) to further buffer the water flow, improve the mixing effect of the flocculant and the wastewater, and prepare for subsequent sedimentation treatment; Water discharge step: The wastewater after sedimentation treatment is discharged from the sedimentation tank (1).

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