Sewage treatment tank for steel structure production

Abstract

The invention discloses a sewage treatment tank for steel structure production, and belongs to the technical field of sewage treatment tanks, the sewage treatment tank comprises a tank body supported and placed above the ground, the upper end of the tank body is fixedly provided with a support frame, the middle position of the upper end of the support frame is fixedly provided with a motor, and the output end of the motor is fixedly provided with a stirring shaft; meanwhile, two medicament hoppers are symmetrically and fixedly mounted on the support frame; the material control assembly is mounted below the supporting frame and is used for controlling intermittent feeding of the medicament hopper; the defoaming assembly is arranged on the inner side of the upper part of the tank body; the fixed frames are uniformly and fixedly mounted on the outer side of the lower part of the stirring shaft, movable cylinders are telescopically mounted on the outer sides of the fixed frames, and gas transmission assemblies are arranged on the stirring shaft, the fixed frames and the movable cylinders; the mud scraping plate is fixedly mounted at the lower end of the stirring shaft. According to the sewage treatment tank for steel structure production, intermittent chemical feeding can be carried out, sewage and chemicals can be fully stirred to react, and automatic defoaming can be achieved in the stirring process.

Description

Technical Field

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

[0002] During the steel structure production process, a large amount of industrial wastewater will be generated, mainly in two categories: indirect cooling wastewater and washing wastewater. In order to avoid direct discharge and cause environmental pollution, it is necessary to use a sewage treatment tank to treat the steel structure production wastewater.

[0003] The prior art (Chinese patent with application number: 202322023095.6 and application date: 2023-07-31) discloses a steel mill pickling wastewater treatment device, which aims to solve the technical problem that the current pickling wastewater will excessively corrode the inner wall of the treatment tank over time, causing damage to the treatment tank and making it troublesome to replace the treatment tank as a whole. The device comprises a tank body and a treatment tank; the treatment tank is inserted into the tank body; the middle of the two ends of the treatment tank are respectively positioned and matched with the tank body through positioning structures; the positioning structure comprises an L-shaped plate, a threaded rod, a rotating handle and a clamping plate; the inner side of the horizontal end of the L-shaped plate is fixedly arranged in 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 rotating 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 adding a layer of treatment tank to the tank body, neutralizing the pickling wastewater in the treatment tank, and the treatment tank and the tank body are detachable, and the corroded treatment tank can be removed and replaced without affecting the use of the tank body;

[0004] The prior art (Chinese patent with application number: 202410114799.0 and application date: 2024-01-29) discloses a sewage treatment device with a medicated agent for sewage treatment, including a water storage tank, the water storage tank includes a tank body, a semi-cylindrical sewage chamber is provided on one side of the tank body, the upper end of the sewage chamber is connected to a water inlet pipe, and a 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 is evenly spread inside the reaction device, and the flocculant is evenly added through the dosing device, and then the sewage is sprayed onto the flocculant through the pumping device, and the flocculant and sewage are mixed and reacted by the impact of the water flow, and the sewage is treated in batches, so that the sewage can fully react with the flocculant each time, and no stirring is required. Only the impact of the water flow is required to complete the mixing of water and flocculant, thereby avoiding the waste of 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 assembly is movably connected to the bottom of the driving motor, one end of the transmission assembly is movably connected to a first stirring assembly, the first stirring assembly is internally rotatably connected to a second stirring assembly, a positioning frame is movably installed between the transmission assembly and the first stirring assembly, and the transmission assembly includes a protective shell, a transmission rod and a gear box. The two-way stirring of the first stirring assembly and the second stirring assembly 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, so that the treatment reaction effect of the sewage and the chemicals is limited, 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 for stirring to improve the mixing effect of the reagents, and the stirring range of the stirring rod is fixed, so that it is impossible to stir the sewage at different positions, resulting in limited treatment reaction effects of the sewage and the reagents.

[0008] To achieve the above 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 installed on the upper end of the tank body, a motor fixedly installed at the middle position of the upper end of the support frame, and a stirring shaft fixedly installed at the output end of the motor, and two reagent hoppers symmetrically fixedly installed on the support frame, and the lower end of the reagent hopper passes through the support frame;

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

[0010] The fixed frame is evenly fixedly installed on the lower outer side of the stirring shaft, and a movable cylinder is telescopically installed on the outer side of the fixed frame, and a gas transmission component is arranged on the stirring shaft, the fixed frame and the movable cylinder to realize automatic gas transmission and aeration;

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

[0012] Preferably, the material control assembly includes a movable frame slidably mounted on the outside of the stirring shaft, and a first spring is fixedly connected between the movable frame and the support frame, and a second magnetic block is evenly mounted on the upper surface of the movable frame, and a movable disk is also fixedly mounted on the outer side of the upper end of the stirring shaft, the movable disk is located above the movable frame, and a first magnetic block is evenly arranged on the lower surface of the movable disk, and the magnetic poles of the opposing surfaces of the first magnetic block and the second magnetic block are the same.

[0013] By adopting the above technical solution, when the stirring shaft drives the movable disk to rotate, the first magnetic block on the lower surface of the movable disk can intermittently pass through the second magnetic block above the movable frame, so that the movable frame can be elastically raised and lowered under the action of magnetic force.

[0014] Preferably, blocking blocks are fixedly mounted on the upper surfaces of both ends of the movable frame, and the upper ends of the blocking blocks are in a conical structure, and the blocking blocks are sealingly fitted to the lower opening of the medicine hopper.

[0015] By adopting the above technical solution, when the movable frame is reciprocatedly lifted and lowered, the lower end of the reagent hopper can be intermittently opened, and intermittent feeding can be achieved, so as to improve the subsequent sewage treatment effect.

[0016] Preferably, a slapping block is integrally provided on the lower surface at the center of the movable frame, and the lower surface of the slapping block is provided in a conical structure, and the slapping block is driven to collide with the liquid surface during the downward movement of the movable frame.

[0017] By adopting the above technical solution, when the movable frame is elastically lifted and lowered, it can drive the slapping block to impact the liquid surface, so that waves are generated on the liquid surface, and then push the bubbles on the liquid surface to float toward the inner wall of the tank body.

[0018] Preferably, the defoaming assembly includes an elastic baffle fixedly mounted on the inner side of the upper end of the trough body and a knocking piece elastically rotatably mounted below the support frame, and the elastic baffle is arranged in an annular 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 floating bubbles, and the knocking piece is pushed to rotate during the downward movement of the movable frame, and the knocking piece knocks the elastic baffle during the rotation and reset process.

[0019] By adopting the above technical solution, when the knocking piece elastically resets and rotates, it can knock the elastic baffle, causing the elastic baffle to vibrate, thereby breaking the bubbles attached to the outside of the elastic baffle, thereby 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 slot body, and a fourth magnetic block is evenly fixedly installed on the inner wall of the slot body, and the third magnetic block intermittently moves to the outside of the fourth magnetic block, and the magnetic poles of the opposite surfaces 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 is close to the fourth magnetic block, the movable cylinder can be telescopically adjusted with the fixed frame under the action of magnetic force, thereby adjusting the stirring range of the fixed frame and the movable cylinder.

[0022] Preferably, the gas delivery assembly comprises a first piston block fixedly mounted on the outer end of the fixing 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 can be slidably adjusted inside the movable cylinder, thereby generating a negative pressure effect inside the movable cylinder.

[0024] Preferably, the gas delivery assembly also includes an air inlet pipe that passes through the fixed frame and the first piston block, and the stirring shaft is a hollow structure, and an air inlet hole is opened at the upper end of the stirring shaft, and the air inlet pipe and the cavity of the stirring shaft are connected, and exhaust pipes are evenly arranged on the movable cylinder, and both the air inlet pipe and the exhaust pipe are provided with a one-way valve structure.

[0025] By adopting the above technical solution, when the first piston block slides on the inner side of the movable cylinder, the movable cylinder can draw external air through the air inlet hole and the air inlet pipe, and blow it evenly into the sewage through the exhaust pipe, thereby achieving an aeration effect and improving the mixing effect.

[0026] Preferably, the striking block is sleeved on the outside of the stirring shaft, and the air inlet hole is intermittently blocked during the lifting and lowering process of the striking block.

[0027] By adopting the above technical solution, the air inlet hole can be intermittently blocked during the adjustment of the slapping block, so that the air inlet hole can be intermittently air-intaked.

[0028] Preferably, a liquid hole is provided at the lower end of the stirring shaft, and a telescopic rod is installed on the inner side of the lower end of the stirring shaft for lifting, and a second piston block is fixedly installed at the lower end of the telescopic rod, and the second piston block and the inner wall of the stirring shaft are interference-slidably fitted, and a third spring is fixedly connected between the second piston block and the internal bracket of the stirring shaft, and 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 lifting and lowering of the slapping block and the extension and retraction of the movable cylinder, when the liquid hole is blocked, the movable cylinder will extract the air inside the stirring shaft when it is extended and retracted away from the fixed frame, so that the second piston block moves upward under the action of negative pressure, thereby extracting sewage through the liquid hole, and when the air hole is opened, the liquid hole can discharge the sewage, thereby assisting the stirring and mixing of the sewage and the reagent.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the sewage treatment tank for steel structure production can be used for intermittent dosing, the sewage and the reagent can be fully stirred and reacted, and automatic defoaming can be achieved during the stirring process. The specific contents are as follows;

[0031] 1. A movable disk, a movable frame and a blocking block are provided. When the motor is started, the movable disk is driven to rotate through the stirring shaft, so that the first magnetic block on the lower surface of the movable disk is intermittently close to the second magnetic block on the upper surface of the movable frame. At this time, the movable frame is elastically raised and lowered under the action of magnetic force, so that the blocking block can intermittently open the lower end of the medicine hopper, thereby realizing intermittent dosing, so as to improve the mixing and reaction effect of sewage and medicine;

[0032] 2. An elastic baffle, a slapping block and a knocking piece are provided. With the lifting and lowering adjustment of the movable frame, the slapping block at the lower end of the movable frame will intermittently slap the liquid surface, so that the waves push the bubbles to the outside of the elastic baffle. At the same time, the lifting and lowering process of the movable frame will drive the knocking piece to rotate elastically and knock the elastic baffle, so that the elastic baffle will vibrate elastically, thereby defoaming the bubbles attached to the outside of the elastic baffle through vibration;

[0033] 3. A stirring shaft, a fixed frame and a movable cylinder are provided. As the stirring shaft rotates, it drives the fixed frame and the movable cylinder to rotate synchronously, so that the movable cylinder and the fixed frame are elastically extended and adjusted under the magnetic force of the third magnetic block and the fourth magnetic block. At this time, the movable cylinder can be evacuated through the air inlet pipe and the air inlet hole at the upper end of the stirring shaft, and automatically exhausted through the exhaust pipe. The sewage can be fully mixed through the extension and exhaust of the movable cylinder;

[0034] 4. A slapping block and a second piston block are provided. By adjusting the lifting and lowering of the slapping block, the air inlet hole can be intermittently blocked. When the air inlet hole is blocked, the first piston block moves inside the movable cylinder, which can make the second piston block move upward under the action of negative pressure, so that the lower end of the stirring shaft automatically extracts sewage through the liquid hole, and when the second piston block is reset, the liquid hole can spray sewage to the outside, thereby further assisting the mixing of sewage and medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0037] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the installation structure of the movable frame of the present invention;

[0039] Figure 5 It is a schematic diagram of the cross-sectional structure of the movable frame of the present invention;

[0040] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0041] Figure 7 It is a schematic cross-sectional view of the fixing frame and the movable cylinder of the present invention;

[0042] Figure 8 This is a schematic diagram of the second piston block installation structure of the present invention.

[0043] In the figure: 1, tank body; 101, elastic baffle; 2, support frame; 3, motor; 4, stirring shaft; 401, air inlet; 402, liquid hole; 5, medicine bucket; 6, movable plate; 7, first magnetic block; 8, first spring; 9, movable frame; 901, slapping block; 10, second magnetic block; 11, blocking block; 12, knocking piece; 13, fixing frame; 14, movable cylinder; 15, third magnetic block; 16, fourth magnetic block; 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, scraper. DETAILED DESCRIPTION

[0044] Example 1: Please refer to Figure 1-Figure 5 As shown, the existing sewage treatment tank for steel structure production is inconvenient to evenly add the reagents in batches during operation, so that the reaction between the treatment reagents and sewage is not sufficient. In order to solve this technical problem, this embodiment discloses the following technical content;

[0045] 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 on the upper end of the tank body 1, a motor 3 is fixedly installed at the middle position of the upper end of the support frame 2, and a stirring shaft 4 is fixedly installed at the output end of the motor 3, and two reagent hoppers 5 are symmetrically fixedly installed on the support frame 2, and the lower end of the reagent hopper 5 passes through the support frame 2;

[0046] It also includes: a material control component, which is installed below the support frame 2 and controls 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 outer side of the upper end of the stirring shaft 4, and the movable disk 6 is located above the movable frame 9, and a first magnetic block 7 is evenly arranged on the lower surface of the movable disk 6, and the magnetic poles of the opposite 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 in a conical 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, start the motor 3, 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 bucket 5, so that the feeding port of the agent bucket 5 is intermittently opened, so as to realize the intermittent addition of the agent, avoid the accumulation and precipitation caused by the single agent addition, thereby improving the mixing effect of the agent and sewage treatment.

[0050] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. In the process of sewage treatment in the existing sewage treatment tank for steel structure production, the stirring method of the stirring mechanism is single and the stirring range is limited, so that the sewage cannot 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 Figure 6-Figure 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 fixedly mounted on the lower outer side of the stirring shaft 4, and a movable cylinder 14 is telescopically mounted on the outer side of the fixed frame 13, and a gas transmission component is arranged on the stirring shaft 4, the fixed frame 13 and the movable cylinder 14 to realize automatic gas transmission and aeration;

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

[0054] A striking block 901 is integrally provided on the lower surface at the center of the movable frame 9, and the lower surface of the striking block 901 is provided with a conical structure, and the striking 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 trough body 1 and a knocking piece 12 elastically rotatably installed under the support frame 2, and the elastic baffle 101 is arranged in an annular structure, and the lower end of the elastic baffle 101 is immersed below the liquid surface. At the same time, the elastic baffle 101 can intercept and attach floating bubbles. The movable frame 9 pushes the knocking piece 12 to rotate during the downward movement, and the knocking piece 12 knocks the elastic baffle 101 during the rotation and reset process.

[0056] A third magnetic block 15 is fixedly installed at one end of the movable cylinder 14 close to the inner wall of the slot body 1, and a fourth magnetic block 16 is evenly fixedly installed on the inner wall of the slot body 1, and the third magnetic block 15 intermittently moves to the outside of the fourth magnetic block 16, and the magnetic poles of the opposite surfaces of the third magnetic block 15 and the fourth magnetic block 16 are the same.

[0057] The gas delivery assembly includes a first piston block 17 fixedly mounted on the outer end of the fixing 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 gas delivery assembly also includes an air intake pipe 19 that passes through the fixed frame 13 and the first piston block 17, and the stirring shaft 4 is a hollow structure, and an air intake hole 401 is opened at the upper end of the stirring shaft 4, and the air intake pipe 19 is connected to the cavity of the stirring shaft 4. At the same time, exhaust pipes 20 are evenly arranged on the movable cylinder 14, and both the air intake pipe 19 and the exhaust pipe 20 are provided with a one-way valve structure.

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

[0060] A liquid hole 402 is provided at the lower end of the stirring shaft 4, and a telescopic rod 21 is installed on the inner side of the lower end of the stirring shaft 4 for lifting and lowering, and 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 and the inner wall of the stirring shaft 4 have an interference sliding fit, and a third spring 23 is fixedly connected between the second piston block 22 and the internal bracket 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 stir the sewage, and as the movable cylinder 14 rotates, the third magnetic block 15 at its end will intermittently pass through the outer side of the fourth magnetic block 16 on the inner wall of the tank body 1, so that the movable cylinder 14 and the fixed frame 13 are elastically adjusted under the action of magnetic force, thereby adjusting the stirring range of the movable cylinder 14, and as the movable cylinder 14 is adjusted in telescopic manner, the first piston block 17 will slide on the inner side of the movable cylinder 14, so that the movable cylinder 14 can inhale air through the intake pipe 19 and the intake hole 401. The air is blown into the sewage evenly through the exhaust pipe 20 on the movable cylinder 14, so that the generated bubbles further assist the stirring and mixing of the sewage and the medicine. As the movable frame 9 is raised and lowered, the slapping block 901 on its lower surface will intermittently hit the center of the sewage liquid surface, so that the sewage liquid surface generates waves, thereby pushing the bubbles on the liquid surface to float outward and attach to the outside of the elastic baffle 101. At the same time, the movable frame 9 will drive the knocking piece 12 to rotate elastically during the lifting process, so that the knocking piece 12 can knock the elastic baffle 101 through its end during the resetting process, so that the elastic baffle 101 generates vibrations, thereby breaking the bubbles on the outside thereof, and realizing the automatic defoaming function;

[0062] As the slapping block 901 is raised and lowered, it will intermittently block the air inlet 401. When the air inlet 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, so that the air pressure in the cavity of the stirring shaft 4 is reduced. 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, so that the lower end cavity of the stirring shaft 4 can suck in sewage through the liquid hole 402. When the air inlet 401 is opened, the second piston block 22 will automatically reset, so that the sewage sucked in the cavity of the stirring shaft 4 can be ejected through the liquid hole 402 again, thereby accelerating the flow of sewage, further assisting the stirring of the sewage, so as to improve the sewage treatment effect. After the sewage reacts and settles, 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 scraper 24.

[0063] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

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) being fixedly mounted on the upper end of the tank body (1), a motor (3) being fixedly mounted at the middle position of the upper end of the support frame (2), and a stirring shaft (4) being fixedly mounted at the output end of the motor (3), and two reagent hoppers (5) being symmetrically fixedly mounted on the support frame (2), the lower end of the reagent hopper (5) passing through the support frame (2); It is characterized in that Also includes: A material control component is installed below the support frame (2) to control the intermittent feeding of the medicine hopper (5); A 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; A fixed frame (13) is evenly fixedly mounted on the lower outer side of the stirring shaft (4); a movable cylinder (14) is telescopically mounted on the outer side of the fixed frame (13); and a gas transmission component is arranged on the stirring shaft (4), the fixed frame (13) and the movable cylinder (14) to realize automatic gas transmission and aeration; The scraper (24) is fixedly mounted on the lower end of the stirring shaft (4) and is used to scrape and clean the sediment.

2. A sewage treatment tank for steel structure production according to claim 1, characterized in that: The material control assembly comprises 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), and a movable disk (6) is also fixedly mounted on the outer side of the upper end of the stirring shaft (4), the movable disk (6) is located above the movable frame (9), and a first magnetic block (7) is evenly arranged on the lower surface of the movable disk (6), and the magnetic poles of the opposing surfaces of the first magnetic block (7) and the second magnetic block (10) are the same.

3. A sewage treatment tank for steel structure production according to claim 2, characterized in that: 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 in a conical structure, and the sealing blocks (11) are sealed and fitted to the lower opening of the medicine hopper (5).

4. A sewage treatment tank for steel structure production according to claim 2, characterized in that: A striking block (901) is integrally arranged on the lower surface at the center of the movable frame (9), and the lower surface of the striking block (901) is arranged in a conical structure, and the striking block (901) is driven to collide with the liquid surface during the downward movement of the movable frame (9).

5. A sewage treatment tank for steel structure production according to claim 2, characterized in that: The defoaming component comprises an elastic baffle (101) fixedly mounted on the inner side of the upper end of the tank body (1) and a knocking piece (12) elastically rotatably mounted below the support frame (2), wherein the elastic baffle (101) is arranged in an annular structure, and the lower end of the elastic baffle (101) is immersed below the liquid surface, and the elastic baffle (101) can intercept and attach floating bubbles, and the knocking piece (12) is pushed to rotate during the downward movement of the movable frame (9), and the knocking piece (12) knocks the elastic baffle (101) during the rotation and reset process.

6. A sewage treatment tank for steel structure production according to claim 1, characterized in that: A third magnetic block (15) is fixedly mounted on one end of the movable cylinder (14) close to the inner wall of the slot body (1), and a fourth magnetic block (16) is evenly fixedly mounted on the inner wall of the slot body (1), and the third magnetic block (15) intermittently moves to the outside of the fourth magnetic block (16), and at the same time, the magnetic poles of the opposing surfaces of the third magnetic block (15) and the fourth magnetic block (16) are the same.

7. A sewage treatment tank for steel structure production according to claim 6, characterized in that: The gas delivery assembly comprises a first piston block (17) fixedly mounted on 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).

8. A sewage treatment tank for steel structure production according to claim 7, characterized in that: The gas delivery assembly further comprises an air intake pipe (19) penetrating the fixed frame (13) and the first piston block (17), the stirring shaft (4) is a hollow structure, an air intake hole (401) is provided at the upper end of the stirring shaft (4), and the air intake pipe (19) is communicated with the cavity of the stirring shaft (4), and exhaust pipes (20) are evenly arranged on the movable cylinder (14), and both the air intake pipe (19) and the exhaust pipe (20) are provided with a one-way valve structure.

9. A sewage treatment tank for steel structure production according to claim 4, characterized in that: The striking block (901) is sleeved on the outer side of the stirring shaft (4), and the striking block (901) intermittently blocks the air inlet (401) during the lifting and lowering process.

10. A sewage treatment tank for steel structure production according to claim 9, characterized in that: The lower end of the stirring shaft (4) is provided with a liquid hole (402), and a telescopic rod (21) is installed on the inner side of the lower end of the stirring shaft (4) for lifting and lowering, and a second piston block (22) is fixedly installed on the lower end of the telescopic rod (21), and the second piston block (22) and the inner wall of the stirring shaft (4) are interference-slidably fitted, and a third spring (23) is fixedly connected between the second piston block (22) and the internal bracket of the stirring shaft (4), and after the liquid hole (402) is blocked, the second piston block (22) elastically moves upward under the action of negative pressure.

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