High-phosphorus wastewater sediment removal equipment for stainless steel surface treatment

Abstract

The utility model relates to the technical field of wastewater treatment equipment, in particular to high-phosphorus wastewater sediment removal equipment for stainless steel surface treatment, which comprises a sedimentation tank, a tank cover is mounted at the top of the sedimentation tank, a plurality of stainless steel treatment screen frames are arranged in the sedimentation tank at equal intervals in the length direction, the bottoms of the stainless steel treatment screen frames and the inner bottom of the sedimentation tank are distributed at intervals, and the adjacent stainless steel treatment screen frames are slidably connected in a limiting mode in the width direction of the sedimentation tank. Power mechanism grooves are formed in the positions, located at the two ends of the stainless steel treatment screen frame, in the sedimentation tank in a partitioned mode through partition plates, and power mechanisms used for driving the stainless steel treatment screen frame to shake in the direction of the sliding rails intermittently are arranged in the power mechanism grooves, so that the sufficiency of stainless steel surface reaction treatment is improved; and the reaction speed of precipitates in the generated high-phosphorus wastewater and chemical agents is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment equipment, in particular to a high-phosphorus wastewater sediment removal device used for stainless steel surface treatment. Background Art

[0002] Wastewater with high phosphorus content is generated during the surface treatment of stainless steel. Its sources include: pickling and chemical polishing: using a cleaning solution containing phosphoric acid to remove impurities such as oxides on the surface of steel; passivation: forming a dense oxide film on the surface of stainless steel to improve corrosion resistance, and a passivation solution containing phosphate is often used; electrolytic polishing: using electrolytic reaction to dissolve the metal surface to obtain a bright surface, and the electrolyte may also contain phosphates. If these phosphorus-containing wastewaters are discharged directly, they will cause environmental problems such as eutrophication of water bodies. Therefore, it is necessary to treat the wastewater to remove the phosphorus. During the treatment process, phosphorus usually combines with metal ions such as calcium, iron, and aluminum in the form of phosphate to form insoluble phosphate precipitates.

[0003] The existing equipment for treating the above-mentioned high-phosphorus wastewater mostly treats the stainless steel first and then removes the wastewater again. The separate treatments are likely to reduce the overall treatment speed and increase the manufacturing and use costs of the equipment. In order to further improve the speed of stainless steel treatment, the wastewater generated by it is treated simultaneously with the stainless steel. The existing common method for treating the precipitate of high-phosphorus wastewater is chemical precipitation, which uses chemical agents such as lime and ferric chloride to react with phosphate in the wastewater to generate precipitates, and then uses a sedimentation tank or a clarification tank to separate the precipitates;

[0004] However, the equipment used in the above precipitation method cannot be processed synchronously with stainless steel, and there is a lack of effective accelerated catalysis during the reaction, resulting in slow overall processing speed and low efficiency;

[0005] Therefore, in view of the above-mentioned problems, the present technical solution proposes a high-phosphorus wastewater sediment removal device for stainless steel surface treatment. Utility Model Content

[0006] The purpose of the utility model is to provide a high-phosphorus wastewater sediment removal device for stainless steel surface treatment to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-phosphorus wastewater sediment removal device for stainless steel surface treatment, comprising a sedimentation tank; a tank cover is installed on the top of the sedimentation tank, the stainless steel to be treated is placed inside the sedimentation tank, and the surface treatment is performed on the stainless steel, and the high-phosphorus wastewater produced by the stainless steel is subjected to sediment removal treatment, a plurality of groups of stainless steel treatment net frames are arranged at equal intervals along the length of the sedimentation tank, and the bottom of the stainless steel treatment net frame is spaced apart from the bottom of the sedimentation tank, the stainless steel to be treated is placed inside the stainless steel treatment net frame for treatment, and the corresponding chemical agent is injected into the sedimentation tank according to the treatment requirements to remove the high-phosphorus wastewater produced by the stainless steel treatment. High-phosphorus wastewater is treated for sediment removal, and adjacent stainless steel treatment net frames are connected by limited sliding along the width direction of the sedimentation tank, that is, adjacent stainless steel treatment net frames can be displaced within a certain distance to ensure rapid treatment of the stainless steel surface placed in the stainless steel treatment net frame. The sedimentation tanks at both ends of the stainless steel treatment net frames are separated by partition plates and are provided with power mechanism grooves. A power mechanism is provided inside the power mechanism grooves. The power mechanism is used to drive the stainless steel treatment net frames to shake intermittently along the direction of the slide rails, thereby improving the adequacy of the reaction treatment on the stainless steel surface and accelerating the reaction rate of the sediment and chemical agents in the generated high-phosphorus wastewater.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a plurality of sets of stainless steel processing mesh frames that are slidably arranged inside the sedimentation tank, and then cooperating with springs and power mechanisms arranged at both ends of the stainless steel processing mesh frames, the stainless steel processing mesh frames are controlled to be in an operating state, and the stainless steel placed therein is surface treated, while ensuring a sufficient processing speed, the subsequently generated high-phosphorus wastewater is treated again, and the movement of the stainless steel processing mesh frames is utilized to stir the reaction liquid, further improving the speed of removing the precipitate in the high-phosphorus wastewater, thereby realizing the function of the equipment to simultaneously treat the surface of the stainless steel and the subsequent high-phosphorus wastewater, thereby reducing the cost of the stainless steel surface treatment and the wastewater treatment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of a high-phosphorus wastewater sediment removal device used for stainless steel surface treatment.

[0010] Figure 2 This is a schematic diagram of the top view of a high-phosphorus wastewater sediment removal device used for stainless steel surface treatment.

[0011] Figure 3 This is a partial first-person structural schematic diagram of a high-phosphorus wastewater sediment removal device used for stainless steel surface treatment.

[0012] Figure 4This is a partial second-perspective structural schematic diagram of a high-phosphorus wastewater sediment removal device used for stainless steel surface treatment.

[0013] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of A.

[0014] Figure 6 It is a schematic diagram of the structure of a middle frame bottom plate of a high-phosphorus wastewater sediment removal device for stainless steel surface treatment;

[0015] Among them: sedimentation tank 10, tank cover 11, power mechanism slot 12, stainless steel processing net frame 13, frame bottom plate 14, slide bar 15, slide rail 16, side plate 17, slideway 18, connecting rod 19, spring 20, U-shaped connecting plate 21, pressing column 22, nut 23, wheel frame 24, pressing wheel 25, servo motor 26, partition plate 27, screw 28. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] See also Figure 1-Figure 4 A high-phosphorus wastewater sediment removal device for stainless steel surface treatment comprises a sedimentation tank 10; a tank cover 11 is installed on the top of the sedimentation tank 10, the stainless steel to be treated is placed inside the sedimentation tank 10, and the surface treatment is performed on the stainless steel, and the high-phosphorus wastewater generated by the stainless steel is subjected to sediment removal treatment. A plurality of groups of stainless steel treatment net frames 13 are arranged at equal intervals along the length of the sedimentation tank 10, and the bottom of the stainless steel treatment net frame 13 is spaced apart from the bottom of the sedimentation tank 10. The stainless steel to be treated is placed inside the stainless steel treatment net frame 13 for treatment. According to the treatment requirements, the corresponding chemical agent is injected into the sedimentation tank 10 to remove the sediment of the high-phosphorus wastewater generated by the stainless steel treatment. The adjacent stainless steel processing net frames 13 are connected by limited sliding along the width direction of the sedimentation tank 10, that is, the adjacent stainless steel processing net frames 13 can be displaced within a certain distance to ensure that the stainless steel surface placed in the stainless steel processing net frames 13 is quickly processed. The sedimentation tank 10 at both ends of the stainless steel processing net frames 13 is separated by a partition plate 27 and a power mechanism groove 12 is arranged inside the power mechanism groove 12. The power mechanism is arranged inside the power mechanism groove 12. The power mechanism is used to drive the stainless steel processing net frame 13 to shake intermittently along the direction of the slide rail 16, that is, to improve the adequacy of the reaction treatment on the stainless steel surface and accelerate the reaction rate of the precipitate and the chemical agent in the generated high-phosphorus wastewater.

[0021] In the embodiment of the present invention, the treatment of the stainless steel surface produces high-phosphorus wastewater, which generally occurs in the following ways: pickling, chemical polishing, using acid solutions (such as nitric acid, sulfuric acid, hydrochloric acid, etc.) to dissolve the oxide scale, rust spots, etc. on the surface. Sometimes, a pickling solution containing phosphoric acid, such as phosphoric acid, phosphates, etc., is also used, which will lead to an increase in the phosphorus content in the wastewater; a mixed acid solution containing nitric acid, phosphoric acid, etc. is used to further dissolve the trace metals on the surface to obtain a smoother surface. This step will produce a large amount of phosphoric acid-containing waste liquid; by setting a stainless steel treatment mesh frame 13 inside the sedimentation tank 10, the stainless steel can be placed in the stainless steel treatment mesh frame 13 to ensure that the surrounding area can fully contact and react with the chemical agent, and its surface is treated. After the treatment is completed, the high-phosphorus wastewater generated is deprecipitated to achieve the function of one pool with multiple uses;

[0022] It should be noted that since both steps are carried out inside the sedimentation tank 10, when chemical agents are selected for treatment, mutual influence should be avoided;

[0023] The chemical agents generally used to remove the sediment in high-phosphorus wastewater are lime, ferric chloride, etc., which can react with the phosphate radicals of pulmonary edema and then precipitate. Then, gravity is used to cause the sediment to fall toward the bottom of the sedimentation tank 10 for deposition, and then it is uniformly treated later.

[0024] For details, see Figure 6 The stainless steel processing net frame 13 includes a frame bottom plate 14 at the bottom and side plates 17 installed on both sides of the top of the frame bottom plate 14. Slide bars 15 and slide rails 16 are installed on both sides of the frame bottom plate 14. When adjacent frame bottom plates 14 are connected, the slide bars 15 are placed inside the slide rails 16 for sliding limit, so that a safe and stable connection can be made while maintaining relative sliding between the stainless steel processing net frames 13.

[0025] In one embodiment of the present invention, a slideway 18 is provided on the side wall of the partition plate 27 corresponding to both ends of the frame bottom plate 14, and a connecting rod 19 is installed on each end of the frame bottom plate 14 corresponding to the slideway 18, and the end of the connecting rod 19 extending into the power mechanism groove 12 is elastically connected with a spring 20, and the end of the spring 20 away from the connecting rod 19 is fixed on the inner wall of the power mechanism groove 12, and the connection support between the connecting rod 19 and the spring 20 is used to keep the stainless steel processing net frame 13 able to move horizontally along the width of the sedimentation tank 10;

[0026] See also Figure 5 The power mechanism includes a lead screw 28 arranged in the middle of the power mechanism groove 12 on one side. One end of the lead screw 28 is rotatably connected to the inner wall of the power mechanism groove 12 through a bearing, and the other end is connected to a servo motor 26. The servo motor 26 is fixed in a motor groove opened in the inner wall of the power mechanism groove 12. A nut 23 is threadedly connected to the lead screw 28, and a guide device for limiting its rotation is provided on the nut 23. The servo motor 26 is started to drive the lead screw 28 to rotate, thereby driving the nut 23 to move back and forth along the lead screw 28. A pressing wheel 25 is installed on the nut 23 toward one side of the stainless steel processing net frame 13 through a wheel frame 24. The upper side plate 17 of the stainless steel processing net frame 13 faces the lead screw 28. A U-shaped connecting plate 21 is installed on one side, and a pressing column 22 that can move through the partition plate 27 is installed at the height of the U-shaped connecting plate 21 corresponding to the pressing wheel 25. Under the elastic action of the springs 20 on both sides of the stainless steel processing net frame 13, the end of the pressing column 22 is kept extending to the inside of the power mechanism groove 12. When the pressing wheel 25 moves along the inside of the power mechanism groove 12, it contacts the pressing column 22 and pushes the pressing column 22 to move toward the middle of the sedimentation tank 10, and then cooperates with the elastic action of the spring 20 to keep the stainless steel processing net frame 13 moving, so that the stainless steel inside it or the high-phosphorus wastewater generated subsequently is in a mobile state for treatment, fully increasing the contact area with the chemical agent and improving the reaction speed.

[0027] The working principle of the utility model is: in the idle part of the device, all the driving parts mentioned above, which refer to the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connections are completed in the working order of each electrical component. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and does not explain the electrical control. When in use, the stainless steel to be treated is placed inside the stainless steel treatment mesh frame 13, and then the corresponding reaction chemical agent is placed inside the sedimentation tank 10, and then the stainless steel is placed in the stainless steel treatment mesh frame 13 to fully contact with the agent, and at the same time, the servo motor 26 is started to drive the nut 23 to rotate, and the pressing wheel 25 is controlled to contact and push the pressing column 22, and the stainless steel treatment mesh frame 13 is controlled to swing, and the surface of the stainless steel is fully treated, and then the high-phosphorus wastewater generated is placed inside the sedimentation tank 10. At this time, the stainless steel is taken out, and the chemical agent for treating the high-phosphorus wastewater is input into the sedimentation tank 10. At this time, the servo motor 26 is started again, and the stainless steel treatment mesh frame 13 is moved to stir the wastewater, thereby precipitating and removing the sedimentation tank in the high-phosphorus wastewater.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A high-phosphorus wastewater sediment removal device for stainless steel surface treatment, characterized in that: The invention comprises a sedimentation tank (10); a tank cover (11) is installed on the top of the sedimentation tank (10); a plurality of groups of stainless steel processing net frames (13) are arranged at equal intervals along the length of the sedimentation tank (10); the bottom of the stainless steel processing net frames (13) and the bottom of the sedimentation tank (10) are spaced apart; adjacent stainless steel processing net frames (13) are connected in a limited sliding manner along the width direction of the sedimentation tank (10); power mechanism grooves (12) are arranged inside the sedimentation tank (10) at both ends of the stainless steel processing net frames (13) separated by partition plates (27); a power mechanism for driving the stainless steel processing net frames (13) to shake along the direction of a slide rail (16) is arranged inside the power mechanism groove (12).

2. The high-phosphorus wastewater sediment removal equipment for stainless steel surface treatment according to claim 1 is characterized in that: The stainless steel processing net frame (13) comprises a frame bottom plate (14) at the bottom and side plates (17) installed on both sides of the top of the frame bottom plate (14). The two sides of the frame bottom plate (14) are respectively installed with sliding bars (15) and sliding rails (16). The sliding bars (15) are placed inside the sliding rails (16) for sliding.

3. The high-phosphorus wastewater sediment removal equipment for stainless steel surface treatment according to claim 2 is characterized in that: Slideways (18) are provided on the side walls of the partition plates (27) corresponding to the two ends of the frame bottom plate (14); a connecting rod (19) is installed on the end of each frame bottom plate (14) corresponding to the slideway (18); the end of the connecting rod (19) extending into the power mechanism groove (12) is elastically connected to a spring (20); the end of the spring (20) away from the connecting rod (19) is fixed to the inner wall of the power mechanism groove (12).

4. The high-phosphorus wastewater sediment removal equipment for stainless steel surface treatment according to claim 3 is characterized in that: The power mechanism comprises a lead screw (28) arranged in the middle of a power mechanism groove (12) on one side, one end of the lead screw (28) is rotatably connected to the inner wall of the power mechanism groove (12) through a bearing, and the other end is connected to a servo motor (26), and the servo motor (26) is fixed in a motor groove opened in the inner wall of the power mechanism groove (12). A nut (23) is threadedly connected to the lead screw (28), and a guide device for limiting its rotation is provided on the nut (23). A pressing wheel (25) is rotatably installed on the side of the nut (23) facing the stainless steel processing net frame (13) through a wheel frame (24).

5. The high-phosphorus wastewater sediment removal equipment for stainless steel surface treatment according to claim 4 is characterized in that: A U-shaped connecting plate (21) is installed on the side of the upper side plate (17) of the stainless steel processing net frame (13) facing the lead screw (28), and a pressing column (22) that movably passes through the partition plate (27) is installed on the U-shaped connecting plate (21) at a height corresponding to the pressing wheel (25).

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