A sewage treatment tank for steel structure production

Abstract

The present invention discloses a steel structure production sewage treatment tank, belonging to the technical field of sewage treatment tanks. The present invention comprises a tank body supported and placed above the ground, a support frame fixedly mounted on the upper end of the tank body, a motor fixedly mounted at the middle position of the upper end of the support frame, and a stirring shaft fixedly mounted on the output end of the motor, and two drug hoppers symmetrically fixedly mounted on the support frame; the tank body also comprises: a material control assembly mounted below the support frame to control the intermittent feeding of the drug hopper; a defoaming assembly arranged on the upper inner side of the tank body; a fixed frame evenly fixedly mounted on the lower outer side of the stirring shaft, a movable cylinder telescopically mounted on the outer side of the fixed frame, and an air supply assembly arranged on the stirring shaft, the fixed frame and the movable cylinder; and a scraper fixedly mounted on the lower end of the stirring shaft. The steel structure production sewage treatment tank can carry out intermittent drug feeding, can fully stir and react the sewage and drugs, and can achieve automatic defoaming during the stirring process.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to a sewage treatment tank for steel structure production. Background Art

[0002] During the production process of steel structures, a large amount of industrial sewage is generated, mainly including two categories: indirect cooling wastewater and washing wastewater. To avoid environmental pollution caused by direct discharge, a sewage treatment tank is required to treat the wastewater from steel structure production.

[0003] The prior art (Chinese patent with application number: 202322023095.6, application date: July 31, 2023) discloses a steel plant pickling wastewater treatment device, aiming to solve the technical problem that the inner wall of the treatment tank is corroded excessively by pickling wastewater over time, which will damage the treatment tank and cause trouble in replacing the whole treatment tank. It includes a pool body and also includes a treatment tank; the treatment tank is inserted into the pool body; both ends of the treatment tank are respectively in positioning cooperation with the pool body through positioning structures; the positioning structure includes an L-shaped plate, a threaded rod, a turning handle and a clamping plate; the inner side of the horizontal end of the L-shaped plate is fixedly arranged at the middle of the top side end of the treatment tank; the threaded rod is threadedly penetrated through the vertical section of the L-shaped plate; the turning handle is fixedly arranged at the outer end of the threaded rod; the clamping plate is rotatably arranged at the inner end of the threaded rod through a rotating shaft, and has the advantages of installing a layer of treatment tank in the pool body, carrying out a neutralization reaction of pickling wastewater in the treatment tank, the treatment tank and the pool body being detachable, and the corroded treatment tank can be detached and replaced without affecting the use of the pool body.

[0004] The prior art (Chinese patent with application number: 202410114799.0, application date: January 29, 2024) discloses a chemical dosing sewage treatment device for sewage treatment, including a storage pool, the storage pool includes a tank body, a semi-cylindrical sewage chamber is opened on one side of the tank body, a water inlet pipe is connected to the upper end of the sewage chamber, and a quarter cylindrical first drainage chamber and a slag receiving plate are equally divided on the other side of the tank body, and a partition door is installed at the bottom opening of the slag receiving plate. By setting four reaction devices, and the depth of the reaction device is much smaller than the depth of the sedimentation tank, the sewage spreads evenly inside the reaction device, first passes through the chemical dosing device for uniform dosing of the flocculant, and then the sewage is sprayed onto the flocculant through the pumping device, and the flocculant and the sewage are mixed and reacted by the impact of the water flow. The sewage is treated in the form of batches and quantities, so that the sewage can fully react with the flocculant each time, without stirring, and only the impact of the water flow is required to complete the mixing of water and the flocculant, avoiding waste of the flocculant.

[0005] The prior art (Chinese patent with application number: 202310509329.X, application date: 2023-05-08) discloses a sewage treatment stirring device, which relates to the field of sewage treatment technology, including a driving motor, a transmission component movably connected to the bottom of the driving motor, one end of the transmission component movably connected to a first stirring component, the internal rotation of the first stirring component is connected to the second stirring component, a positioning frame is movably installed between the transmission component and the first stirring component, and the transmission component includes a protective shell, a transmission rod and a gear box. The two-way stirring of the first stirring component and the second stirring component of the present invention can effectively disrupt the direction of the water flow, so that the sewage at different positions can be fully mixed together, which can effectively improve the stirring and mixing effect, and when the first stirring frame and the second stirring frame are close to the reinforcement bracket and the extension bracket, the effect of disrupting the water flow direction is more obvious, and the reciprocating cycle can continuously change the flow rate of the sewage, thereby further improving the stirring effect;

[0006] In the prior art, when adding chemicals, only a single traditional stirring method is used to stir the sewage to improve the mixing effect of the chemicals. The stirring range of the stirring rod is fixed, which makes it impossible to stir the sewage at different positions, resulting in limited treatment reaction effects of the sewage and chemicals, and there are certain usage defects. Summary of the Invention

[0007] The purpose of the present invention is to provide a sewage treatment tank for steel structure production, so as to solve the problem raised in the above background technology that the sewage treatment tanks on the market currently only use a single traditional stirring method to stir to improve the mixing effect of the reagents, and the stirring range of the stirring rod is fixed, making it impossible to stir the sewage at different positions, resulting in limited treatment reaction effect of sewage and reagents.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a steel structure production sewage treatment tank, comprising a tank body supported and placed above the ground, a support frame fixedly mounted on the upper end of the tank body, a motor fixedly mounted in the middle position of the upper end of the support frame, and a stirring shaft fixedly mounted on the output end of the motor, and two drug hoppers symmetrically fixedly mounted on the support frame, the lower ends of the drug hoppers passing through the support frame;

[0009] It also includes: a material control component installed under the support frame to control the intermittent feeding of the medicine hopper; a defoaming component installed on the upper inner side of the tank body to eliminate bubbles generated during the stirring process;

[0010] The fixed frame is evenly fixed on the lower outer side of the stirring shaft, and a movable cylinder is telescopically installed on the outer side of the fixed frame. The stirring shaft, the fixed frame and the movable cylinder are provided with a gas transmission component for realizing automatic gas transmission and aeration;

[0011] The sludge scraper is fixedly installed at the lower end of the stirring shaft to scrape and clean the sediment.

[0012] Preferably, the material control component includes a movable frame slidably installed outside the stirring shaft. A first spring is fixedly connected between the movable frame and the support frame. The upper surface of the movable frame is evenly installed with second magnetic blocks. At the same time, a movable disk is fixedly installed outside the upper end of the stirring shaft. The movable disk is located above the movable frame. The lower surface of the movable disk is evenly provided with first magnetic blocks. The magnetic poles of the opposite surfaces of the first magnetic blocks and the second magnetic blocks are the same.

[0013] By adopting the above technical solution, when the stirring shaft drives the movable disk to rotate, the first magnetic blocks on the lower surface of the movable disk can intermittently pass over the second magnetic blocks above the movable frame, so that the movable frame will perform elastic lifting adjustment under the action of magnetic force.

[0014] Preferably, sealing blocks are fixedly installed on the upper surfaces of both ends of the movable frame. The upper ends of the sealing blocks are in a conical structure, and the sealing blocks are hermetically fitted to the lower opening of the chemical agent hopper.

[0015] By adopting the above technical solution, when the movable frame performs reciprocating lifting adjustment, the intermittent opening of the lower end of the chemical agent hopper can be realized, and intermittent feeding can be achieved to improve the subsequent sewage treatment effect.

[0016] Preferably, a slapping block is integrally provided on the lower surface of the center of the movable frame. The lower surface of the slapping block is in a conical structure, and the slapping block hits the liquid surface when the movable frame moves downward.

[0017] By adopting the above technical solution, when the movable frame performs elastic lifting, it can drive the slapping block to impact the liquid surface, causing waves on the liquid surface, and then pushing the bubbles on the liquid surface to float towards the inner wall of the tank.

[0018] Preferably, the defoaming component includes an elastic baffle fixedly installed inside the upper end of the tank and a knocking member elastically rotatably installed below the support frame. The elastic baffle is in a ring structure, and the lower end of the elastic baffle is immersed below the liquid surface. At the same time, the elastic baffle can intercept and attach to the floating bubbles. When the movable frame moves downward, it pushes the knocking member to rotate, and the knocking member knocks the elastic baffle during the rotation and reset process.

[0019] By adopting the above technical solution, when the knocking member rotates and resets elastically, it can knock the elastic baffle, causing the elastic baffle to vibrate, thereby breaking the bubbles attached to the outside of the elastic baffle and achieving effective defoaming.

[0020] Preferably, a third magnetic block is fixedly installed at one end of the movable cylinder close to the inner wall of the tank body, and fourth magnetic blocks are uniformly and fixedly installed on the inner wall of the tank body. The third magnetic block intermittently moves to the outside of the fourth magnetic block, and the magnetic poles of the opposite faces of the third magnetic block and the fourth magnetic block are the same.

[0021] By adopting the above technical solution, when the stirring shaft drives the fixed frame and the movable cylinder to rotate, when the third magnetic block at the end of the movable cylinder approaches the fourth magnetic block, the movable cylinder will be telescopically adjusted with the fixed frame under the action of magnetic force, so as to adjust the stirring range of the fixed frame and the movable cylinder.

[0022] Preferably, the air delivery assembly includes a first piston block fixedly installed at the outer end of the fixed frame, and a second spring is connected between the first piston block and the inner wall of the movable cylinder.

[0023] By adopting the above technical solution, when the fixed frame and the movable cylinder are telescopically adjusted, the piston block will slide and adjust inside the movable cylinder, so that a negative pressure effect is generated inside the movable cylinder.

[0024] Preferably, the air delivery assembly further includes an air inlet pipe penetrating through the fixed frame and the first piston block. The stirring shaft is of a hollow structure, an air inlet hole is opened at the upper end of the stirring shaft, and the air inlet pipe is communicated with the cavity of the stirring shaft. At the same time, exhaust pipes are uniformly arranged on the movable cylinder. One-way valve structures are arranged on both the air inlet pipe and the exhaust pipe.

[0025] By adopting the above technical solution, when the first piston block slides inside the movable cylinder, the movable cylinder can extract external air through the air inlet hole and the air inlet pipe, and uniformly blow it into the sewage through the exhaust pipe, so as to achieve an aeration effect and improve the mixing effect.

[0026] Preferably, the slapping block is sleeved on the outside of the stirring shaft, and the slapping block intermittently blocks the air inlet hole during the ascending and descending process.

[0027] By adopting the above technical solution, the slapping block can intermittently block the air inlet hole during the adjustment process, so that the air inlet hole can intake air intermittently.

[0028] Preferably, a liquid hole is opened at the lower end of the stirring shaft, a telescopic rod is installed in the lower end of the stirring shaft in a lifting manner, a second piston block is fixedly installed at the lower end of the telescopic rod, and the second piston block is in interference sliding fit with the inner wall of the stirring shaft. At the same time, a third spring is fixedly connected between the second piston block and the internal support of the stirring shaft. After the liquid hole is blocked, the second piston block elastically moves upward under the action of negative pressure.

[0029] By adopting the above technical solution, during the process of the lifting of the slapping block and the telescopic adjustment of the movable cylinder, when the liquid hole is blocked, during the process of the movable cylinder telescoping away from the fixed frame, the movable cylinder will extract the air inside the stirring shaft, causing the second piston block to move upward under the negative pressure, thereby extracting sewage through the liquid hole. When the air hole is opened, the liquid hole can discharge the sewage, thereby assisting in the agitation and mixing of the sewage and the medicament.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: The sewage treatment tank for steel structure production can perform intermittent dosing, can fully agitate and react the sewage and the medicament, and can achieve automatic defoaming during the stirring process. The specific content is as follows;

[0031] 1. There are a movable disk, a movable frame and a blocking block. With the start of the motor, it will drive the movable disk to rotate through the stirring shaft, so that the first magnetic block on the lower surface of the movable disk will intermittently approach the second magnetic block on the upper surface of the movable frame. At this time, the movable frame will perform elastic lifting adjustment under the magnetic force, so that the blocking block can intermittently open the lower end of the medicament hopper, thereby realizing intermittent dosing to improve the mixing and reaction effects of the sewage and the medicament;

[0032] 2. There are an elastic baffle, a slapping block and a knocking member. With the lifting adjustment of the movable frame, the slapping block at the lower end of the movable frame will intermittently slap the liquid surface, thereby causing the waves to push the bubbles to move outside the elastic baffle. At the same time, during the lifting process of the movable frame, it will drive the knocking member to perform elastic rotation and knock the elastic baffle, causing the elastic baffle to vibrate elastically, thereby defoaming the bubbles attached to the outside thereof through the vibration;

[0033] 3. There are a stirring shaft, a fixed frame and a movable cylinder. With the rotation of the stirring shaft, it will drive the fixed frame and the movable cylinder to rotate synchronously, so that the movable cylinder performs elastic telescopic adjustment with the fixed frame under the magnetic force of the third magnetic block and the fourth magnetic block. At this time, the movable cylinder can extract air through the air inlet pipe and the air inlet hole at the upper end of the stirring shaft, and realize automatic exhaust through the exhaust pipe. Through the telescopic adjustment and exhaust function of the movable cylinder, the full mixing of the sewage can be achieved;

[0034] 4. There are a slapping block and a second piston block. Through the lifting adjustment of the slapping block, it can intermittently block the air inlet hole. When the air inlet hole is blocked, when the first piston block moves inside the movable cylinder, the second piston block will move upward under the negative pressure, and further the lower end of the stirring shaft will automatically extract sewage through the liquid hole. When the second piston block returns to its original position, the liquid hole can spray sewage outward, thereby further assisting in the mixing of the sewage and the medicament. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is the front view structural schematic diagram of the present invention;

[0036] Figure 2 Schematic top view structure of the present invention;

[0037] Figure 3 Schematic sectional view structure of the present invention;

[0038] Figure 4 Schematic installation structure of the movable frame of the present invention;

[0039] Figure 5 Schematic sectional view structure of the movable frame of the present invention;

[0040] Figure 6 For the present invention Figure 5 Schematic enlarged structure at position A in;

[0041] Figure 7 Schematic sectional view structure of the fixed frame and the movable cylinder of the present invention;

[0042] Figure 8 Schematic installation structure of the second piston block of the present invention.

[0043] In the figure: 1, trough body; 101, elastic baffle; 2, support frame; 3, motor; 4, stirring shaft; 401, air inlet hole; 402, liquid hole; 5, medicine hopper; 6, movable disc; 7, first magnet; 8, first spring; 9, movable frame; 901, slapping block; 10, second magnet; 11, plugging block; 12, knocking piece; 13, fixed frame; 14, movable cylinder; 15, third magnet; 16, fourth magnet; 17, first piston block; 18, second spring; 19, air inlet pipe; 20, exhaust pipe; 21, telescopic rod; 22, second piston block; 23, third spring; 24, sludge scraping plate. Specific embodiments

[0044] Embodiment 1: Please refer to Figures 1-5 As shown, in the working process of the existing sewage treatment trough for steel structure production, it is inconvenient to batch and evenly put the medicine, resulting in insufficient reaction between the treatment medicine and the sewage. To solve this technical problem, the following technical content is disclosed in this embodiment;

[0045] A sewage treatment trough for steel structure production includes a trough body 1 supported and placed above the ground. A support frame 2 is fixedly installed at the upper end of the trough body 1, and a motor 3 is fixedly installed at the middle position of the upper end of the support frame 2. The output end of the motor 3 is fixedly installed with a stirring shaft 4. At the same time, two medicine hoppers 5 are symmetrically and fixedly installed on the support frame 2, and the lower end of the medicine hopper 5 penetrates through the support frame 2;

[0046] It further includes: a material control component, installed below the support frame 2 to control the intermittent feeding of the medicine hopper 5;

[0047] The material control assembly includes a movable frame 9 slidably mounted on the outside of the stirring shaft 4, and a first spring 8 is fixedly connected between the movable frame 9 and the support frame 2, and a second magnetic block 10 is evenly mounted on the upper surface of the movable frame 9. At the same time, a movable disk 6 is also fixedly mounted on the outside of the upper end of the stirring shaft 4. The movable disk 6 is located above the movable frame 9, and the lower surface of the movable disk 6 is evenly provided with a first magnetic block 7, and the magnetic poles of the opposing surfaces of the first magnetic block 7 and the second magnetic block 10 are the same.

[0048] Sealing blocks 11 are fixedly mounted on the upper surfaces of both ends of the movable frame 9 , and the upper ends of the sealing blocks 11 are conical in structure, and the sealing blocks 11 are sealed and fitted to the lower opening of the medicine hopper 5 .

[0049] By adopting the above technical solution, when it is necessary to add treatment agents to the sewage, the motor 3 is started, so that the motor 3 drives the movable disk 6 to rotate through the stirring shaft 4, so that the first magnetic block 7 on the lower surface of the movable disk 6 will intermittently pass over the second magnetic block 10. At this time, the second magnetic block 10 will drive the movable frame 9 to slide elastically downward on the outside of the stirring shaft 4 under the action of magnetic force, so that the blocking blocks 11 at both ends of the movable frame 9 can be away from the lower end opening of the agent hopper 5, so that the blanking port of the agent hopper 5 is intermittently opened, thereby realizing intermittent addition of the agent, avoiding accumulation and precipitation caused by single agent addition, and thus improving the mixing effect of the agent and sewage treatment.

[0050] Example 2: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Example 1. In the existing sewage treatment tank for steel structure production, the stirring mechanism has a single stirring mode and a limited stirring range during the sewage treatment process, which makes it impossible for the sewage to fully react with the reagent. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 3 and Figures 6-8 As shown;

[0051] The defoaming component is arranged on the inner side of the upper part of the tank body 1 and is used to eliminate bubbles generated during the stirring process;

[0052] The fixed frame 13 is evenly fixed on the outer side of the lower part of the stirring shaft 4. The outer side of the fixed frame 13 is telescopically mounted with a movable cylinder 14. The stirring shaft 4, the fixed frame 13 and the movable cylinder 14 are provided with a gas transmission component for realizing automatic gas transmission and aeration.

[0053] The scraper 24 is fixedly mounted on the lower end of the stirring shaft 4 and is used to scrape and clean the sediment;

[0054] A slapping block 901 is integrally provided on the lower surface of the center of the movable frame 9, and the lower surface of the slapping block 901 is arranged in a conical structure, and the slapping block 901 is driven to hit the liquid surface during the downward movement of the movable frame 9.

[0055] The defoaming component includes an elastic baffle 101 fixedly installed on the inner side of the upper end of the tank body 1 and a knocking member 12 elastically and rotatably installed below the support frame 2. The elastic baffle 101 is arranged in an annular structure, and the lower end of the elastic baffle 101 is immersed below the liquid level. At the same time, the elastic baffle 101 can intercept and attach to the floating bubbles. During the downward movement of the movable frame 9, the knocking member 12 is pushed to rotate, and the elastic baffle 101 is knocked during the rotation and reset process of the knocking member 12.

[0056] One end of the movable cylinder 14 close to the inner wall of the tank body 1 is fixedly installed with a third magnet 15, and the inner wall of the tank body 1 is evenly fixedly installed with fourth magnets 16. The third magnet 15 intermittently moves to the outside of the fourth magnet 16, and the magnetic poles of the opposite surfaces of the third magnet 15 and the fourth magnet 16 are the same.

[0057] The air delivery component includes a first piston block 17 fixedly installed at the outer end of the fixed frame 13, and a second spring 18 is connected between the first piston block 17 and the inner wall of the movable cylinder 14.

[0058] The air delivery component further includes an air inlet pipe 19 passing through the fixed frame 13 and the first piston block 17. The stirring shaft 4 is of a hollow structure, and an air inlet hole 401 is opened at the upper end of the stirring shaft 4. The air inlet pipe 19 is communicated with the cavity of the stirring shaft 4. At the same time, exhaust pipes 20 are evenly arranged on the movable cylinder 14. Both the air inlet pipe 19 and the exhaust pipes 20 are provided with one-way valve structures.

[0059] The slapping block 901 is sleeved on the outside of the stirring shaft 4, and the air inlet hole 401 is intermittently blocked during the lifting process of the slapping block 901.

[0060] A liquid hole 402 is opened at the lower end of the stirring shaft 4, and a telescopic rod 21 is installed in the inner side of the lower end of the stirring shaft 4 in a lifting manner. A second piston block 22 is fixedly installed at the lower end of the telescopic rod 21. At the same time, the second piston block 22 is in interference sliding fit with the inner wall of the stirring shaft 4, and a third spring 23 is fixedly connected between the second piston block 22 and the internal support of the stirring shaft 4. After the liquid hole 402 is blocked, the second piston block 22 elastically moves upward under the action of negative pressure.

[0061] By adopting the above technical solution, as the stirring shaft 4 rotates, it will drive the fixed frame 13 and the movable cylinder 14 to rotate synchronously, so that the fixed frame 13 and the movable cylinder 14 can initially agitate the sewage. As the movable cylinder 14 rotates, the third magnet 15 at its end will intermittently pass by the outside of the fourth magnet 16 on the inner wall of the tank body 1, causing the movable cylinder 14 to perform elastic telescopic adjustment with the fixed frame 13 under the action of magnetic force, thereby adjusting the stirring range of the movable cylinder 14. As the movable cylinder 14 undergoes telescopic adjustment, the first piston block 17 will slide inside the movable cylinder 14, enabling the movable cylinder 14 to inhale air through the air inlet pipe 19 and the air inlet hole 401 and evenly blow it into the sewage through the exhaust pipe 20 on the movable cylinder 14, thereby further assisting the agitation and mixing of the sewage and the medicament through the generated bubbles. As the movable frame 9 undergoes lifting adjustment, the slapping block 901 on its lower surface will intermittently strike the center of the sewage liquid surface, causing waves on the sewage liquid surface, and then pushing the bubbles on the liquid surface to float outward and adhere to the outside of the elastic baffle 101. At the same time, during the lifting process of the movable frame 9, it will drive the knocking member 12 to perform elastic rotation, so that the knocking member 12 can knock on the elastic baffle 101 through its end during the reset process, causing the elastic baffle 1,01 to vibrate, and then shattering the bubbles outside it to achieve the automatic defoaming function;

[0062] As the slapping block 901 undergoes lifting adjustment, it will intermittently block the air inlet hole 401. When the air inlet hole 401 is blocked, when the first piston block 17 moves inside the movable cylinder 14, the movable cylinder 14 will extract the gas in the cavity of the stirring shaft 4 through the air inlet pipe 19, causing the air pressure in the cavity of the stirring shaft 4 to decrease. At this time, the second piston block 22 will elastically move upward along the cavity of the stirring shaft 4 under the action of negative pressure, enabling the lower cavity of the stirring shaft 4 to inhale sewage through the liquid hole 402. When the air inlet hole 401 is opened, the second piston block 22 will automatically reset, so that the sewage inhaled into the cavity of the stirring shaft 4 can be ejected again through the liquid hole 402, thereby accelerating the water body flow of the sewage and further assisting the agitation of the sewage to improve the sewage treatment effect. When the sewage reacts and precipitates, the water body is drained and transported, and the flocculants precipitated at the bottom of the tank body 1 can be scraped and cleaned by the sludge scraper 24.

[0063] The content not described in detail in this specification belongs to the known prior art of those skilled in the art.

Claims

1. A sewage treatment tank for steel structure production, comprising a tank body (1) supported and placed above the ground. A support frame (2) is fixedly installed at the upper end of the tank body (1), and a motor (3) is fixedly installed at the middle position of the upper end of the support frame (2). The output end of the motor (3) is fixedly installed with a stirring shaft (4). At the same time, two medicine hoppers (5) are symmetrically and fixedly installed on the support frame (2), and the lower end of the medicine hopper (5) penetrates through the support frame (2). It is characterized in that It further includes: A material control component, installed below the support frame (2) to control the intermittent feeding of the medicine hopper (5). The material control component includes a movable frame (9) slidably installed on the outer side of the stirring shaft (4). A first spring (8) is fixedly connected between the movable frame (9) and the support frame (2). The upper surface of the movable frame (9) is evenly installed with second magnetic blocks (10). At the same time, a movable disk (6) is fixedly installed on the outer side of the upper end of the stirring shaft (4). The movable disk (6) is located above the movable frame (9). The lower surface of the movable disk (6) is evenly provided with first magnetic blocks (7). The magnetic poles of the opposite surfaces of the first magnetic blocks (7) and the second magnetic blocks (10) are the same. The lower surface of the center of the movable frame (9) is integrally provided with a slapping block (901). The lower surface of the slapping block (901) is arranged in a conical structure. When the movable frame (9) moves downward, the slapping block (901) is driven to impact the liquid surface. A fixed frame (13), evenly fixedly installed on the outer side of the lower part of the stirring shaft (4). An activity cylinder (14) is telescopically installed on the outer side of the fixed frame (13). An air delivery component is arranged on the stirring shaft (4), the fixed frame (13) and the activity cylinder (14) to realize the automatic delivery and aeration of gas. One end of the activity cylinder (14) close to the inner wall of the tank body (1) is fixedly installed with a third magnetic block (15). The inner wall of the tank body (1) is evenly fixedly installed with fourth magnetic blocks (16). The third magnetic block (15) intermittently moves to the outer side of the fourth magnetic block (16). The magnetic poles of the opposite surfaces of the third magnetic block (15) and the fourth magnetic block (16) are the same. The gas transmission assembly includes a first piston block (17) fixedly installed at the outer end of the fixed frame (13), and a second spring (18) is connected between the first piston block (17) and the inner wall of the movable cylinder (14). The gas transmission assembly further includes an air inlet pipe (19) passing through the fixed frame (13) and the first piston block (17). The stirring shaft (4) is of a hollow structure, and an air inlet hole (401) is formed at the upper end of the stirring shaft (4). The air inlet pipe (19) is communicated with the cavity of the stirring shaft (4). At the same time, exhaust pipes (20) are uniformly arranged on the movable cylinder (14). Both the air inlet pipe (19) and the exhaust pipes (20) are provided with one-way valve structures. The flapping block (901) is sleeved on the outer side of the stirring shaft (4). During the lifting process of the flapping block (901), the air inlet hole (401) is intermittently blocked. A liquid hole (402) is formed at the lower end of the stirring shaft (4), and a telescopic rod (21) is installed in the lower end inner side of the stirring shaft (4) in a lifting manner. A second piston block (22) is fixedly installed at the lower end of the telescopic rod (21). At the same time, the second piston block (22) is in interference sliding fit with the inner wall of the stirring shaft (4), and a third spring (23) is fixedly connected between the second piston block (22) and the inner support of the stirring shaft (4). After the liquid hole (402) is blocked, the second piston block (22) moves upward elastically under the action of negative pressure; The defoaming assembly is arranged inside the upper part of the tank body (1) and is used to eliminate the bubbles generated during the stirring process; The sludge scraper (24) is fixedly installed at the lower end of the stirring shaft (4) and is used to scrape and clean the sediment; 2. The sewage treatment tank for steel structure production according to claim 1, characterized in that: Sealing blocks (11) are fixedly installed on the upper surfaces at both ends of the movable frame (9), and the upper ends of the sealing blocks (11) are of a conical structure, and the sealing blocks (11) are hermetically attached to the lower opening of the medicine hopper (5).

3. The sewage treatment tank for steel structure production according to claim 1, wherein: The defoaming assembly includes an elastic baffle (101) fixedly installed inside the upper end of the tank body (1) and a knocking member (12) elastically and rotatably installed below the support frame (2). The elastic baffle (101) is arranged in a ring structure, and the lower end of the elastic baffle (101) is immersed below the liquid level. At the same time, the elastic baffle (101) intercepts and adheres to the floating bubbles. During the downward movement of the movable frame (9), the knocking member (12) is pushed to rotate, and the elastic baffle (101) is knocked during the rotation and reset process of the knocking member (12).

Images