Metallurgical wastewater treatment plant

Abstract

The application discloses a metallurgical wastewater treatment equipment and relates to the technical field of wastewater treatment.The application comprises a treatment cylinder, which is provided with an upper cylinder and a lower cylinder in communication, a drain pipe is coaxially arranged in the lower cylinder through a support rod, and a filter plate is arranged in the upper cylinder in a sliding mode and has an umbrella-shaped structure.The filter plate comprises a first plate body and a second plate body.The filter plate is provided with an elastic element between the filter plate and the drain pipe, so that the filter plate is not prone to blockage when filtering impurities.The filter plate is composed of the first plate body and the second plate body, an annular through slot is formed between the first plate body and the second plate body, and an annular baffle is arranged in the annular through slot in a plug-in mode.When the filter plate is lowered under the weight of impurities, the second plate body is separated from the upper cylinder, the annular baffle is slid through the annular through slot, and the water flow is blocked, so that the impurities can be automatically discharged, the filtering process is not interrupted during the discharging process, the filtering effect is improved, and the discharge of wastewater is not excessively reduced during the discharging process.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, specifically to metallurgical wastewater treatment equipment. Background Technology

[0002] Metallurgy is the process and technology of extracting metals or metal compounds from minerals and processing them into metallic materials with certain properties using various processing methods. Metallurgical wastewater contains a large amount of suspended solids, has large variations in water quality, and is at a high temperature. For every ton of molten iron produced, 2 to 4 cubic meters of blast furnace gas washing wastewater are discharged, with a water temperature above 30°C and a suspended solids content of 600 to 3000 mg / L. The wastewater mainly consists of iron ore, coke powder, and some oxides, and also contains cyanide, sulfide, phenol, inorganic salts, and metal ions such as zinc and chromium.

[0003] Existing treatment methods first use filtration devices to remove particles larger than 100 micrometers, and then send the wastewater into a wastewater treatment system for further treatment. During the initial filtration of large particles in the wastewater, these particles easily clog the filter screen, thus reducing the filtration efficiency. Currently, most wastewater filtration equipment requires cleaning the impurities trapped on the filter screen after a period of use. This cleaning process necessitates a temporary interruption of the filtration process, resulting in low filtration efficiency. Furthermore, cleaning the trapped impurities can easily lead to excessive liquid loss. Therefore, this application proposes a metallurgical wastewater treatment device. Summary of the Invention

[0004] The purpose of this application is to provide a metallurgical wastewater treatment device in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution:

[0006] Metallurgical wastewater treatment equipment includes:

[0007] The processing cylinder has an upper cylinder and a lower cylinder that are connected to each other, and a drain pipe is coaxially arranged inside the lower cylinder through a support rod;

[0008] The filter plate has an umbrella-shaped structure and is slidably disposed inside the upper cylinder. The filter plate includes a first plate body and a second plate body. The first plate body and the second plate body are connected by a first U-shaped frame and an annular through groove is left between them. An elastic element is connected between the second plate body and the top end of the drain pipe.

[0009] A conical guide plate is disposed on the inner wall of the upper cylinder, and the conical tip of the conical guide plate corresponds to the tip of the first plate.

[0010] An annular sealing plate is mounted on the drain pipe via a support rod, and the annular sealing plate slides through the annular groove.

[0011] Furthermore, both the first plate and the second plate are provided with two sleeves, and an annular through groove communicating with the annular through groove is formed between the two sleeves. The annular sealing plate is movably inserted into the annular through groove.

[0012] Furthermore, the elastic element includes:

[0013] The ring is mounted on the drain pipe via a support rod;

[0014] Several elastic strips are obliquely connected between the ring and the filter plate and are distributed in a ring array.

[0015] Furthermore, a shaft passes through the center of the first plate, and several first scrapers are connected to the shaft. The several first scrapers all abut and overlap with the outer surface of the first plate. An adjustment part is provided on the drain pipe. When the filter plate slides, the adjustment part adjusts the rotation of the shaft.

[0016] Furthermore, the adjustment unit includes:

[0017] A support plate is installed on the inner wall of the drain pipe via a support rod;

[0018] A guide rod is mounted on the bearing plate. A spiral groove is formed on the outer surface of the shaft, and the end of the guide rod is slidably inserted into the spiral groove.

[0019] Furthermore, a ball bearing is tumbled into the end of the guide rod, and the ball bearing is tumbled into the spiral groove.

[0020] Furthermore, the free end of the first scraper is connected to a second scraper via a second U-shaped frame, and the second scraper abuts and overlaps with the outer surface of the second plate.

[0021] Furthermore, the support plate has a through hole, and the shaft moves through the through hole.

[0022] Furthermore, a guide tube is provided on the outer surface of the drain pipe, and a spiral plate is provided between the outer surface of the guide tube and the inner wall of the lower cylinder. A guide plate corresponding to the lower end of the spiral plate is connected to the outer surface of the lower cylinder.

[0023] Furthermore, the spiral plate is an electromagnetic plate.

[0024] The beneficial effects of this application are as follows:

[0025] 1. In this application, by setting a filter plate with an umbrella-shaped structure and connecting the filter plate and the drain pipe with an elastic element, it is not easy to clog when filtering impurities. The filter plate is composed of a first plate and a second plate connected together, with an annular groove between them, and an annular baffle is provided to cooperate with the annular groove. When the filter plate moves down due to the weight of impurities, the second plate separates from the upper cylinder, and the annular baffle slides through the annular groove to block the water flow. This not only realizes automatic impurity discharge, but also does not require interruption of filtration during the impurity discharge process, thereby improving the filtration effect. Moreover, the wastewater loss is not excessively reduced during impurity discharge, thereby improving practicality.

[0026] 2. In this application, the elastic element is composed of several inclined elastic strips, which can not only be used to reset the filter plate, but also rotate at a certain speed when the filter plate moves up and down. By utilizing the centrifugal force of rotation, not only is the filter plate prevented from being blocked, but the impurity removal effect is also improved.

[0027] 3. In this application, by rotating the shaft and the first scraper on the shaft, the filter plate moves up and down. The shaft rotates and drives the first scraper to scrape the first plate body, so as to avoid the first plate body being blocked by impurities and further ensure the filtration effect of the first plate body.

[0028] 4. In this application, a second scraper connected to the first scraper scrapes the second plate body. During the impurity removal process, the second scraper applies a certain pushing force to the impurities so that the impurities can fall off the second plate body quickly, thereby improving the impurity removal efficiency of the second plate body. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of this application;

[0030] Figure 2 This is a three-dimensional structural sectional view of this application;

[0031] Figure 3 This is a partial three-dimensional structural diagram of this application;

[0032] Figure 4 This is a partial structural plan view of this application;

[0033] Figure 5 This application Figure 2 Enlarged view of point A in the middle;

[0034] Figure 6 This application Figure 2 Enlarged view at point B in the middle;

[0035] Reference numerals: 1. Processing cylinder; 2. Drain pipe; 3. Filter plate; 4. Elastic element; 5. Conical guide plate; 6. Annular sealing plate; 7. Sleeve; 8. Shaft; 9. First scraper; 10. Adjustment part; 11. Ball bearing; 12. Second U-shaped frame; 13. Second scraper; 14. Insertion hole; 15. Guide cylinder; 16. Spiral plate; 17. Guide plate; 101. Upper cylinder; 102. Lower cylinder; 301. First plate; 302. Second plate; 303. First U-shaped frame; 401. Ring; 402. Elastic strip; 1001. Bearing plate; 1002. Guide rod; 1003. Spiral groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0037] like Figures 1-6 As shown, one embodiment of the metallurgical wastewater treatment equipment proposed in this application includes:

[0038] The processing cylinder 1 has an upper cylinder 101 and a lower cylinder 102 that are connected to each other. A drain pipe 2 is coaxially arranged inside the lower cylinder 102 through a support rod.

[0039] The filter plate 3 has an umbrella-shaped structure and is slidably disposed in the upper cylinder 101. The filter plate 3 includes a first plate body 301 and a second plate body 302. The first plate body 301 and the second plate body 302 are connected by a first U-shaped frame 303, and an annular through groove is left between them. An elastic element 4 is connected between the second plate body 302 and the top end of the drain pipe 2.

[0040] A conical guide plate 5 is disposed on the inner wall of the upper cylinder 101, and the conical tip of the conical guide plate 5 corresponds to the tip of the first plate 301; preferably, the top of the drain pipe 2 has a conical structure, so that when the second plate 302 is located inside the upper cylinder 101, a small amount of wastewater filtered by the second plate 302 will fall into the drain pipe 2.

[0041] The annular sealing plate 6 is mounted on the drain pipe 2 by a support rod. The annular sealing plate 6 slides through the annular groove. Preferably, under the elastic force of the elastic element 4, the filter plate 3 is slidably inserted into the upper cylinder 101, and the annular sealing plate 6 is movably inserted into the annular groove.

[0042] During wastewater treatment, wastewater is introduced through the port of the upper cylinder 101 and passes through the filter plate 3. The filter plate 3 filters and intercepts impurities in the wastewater. Guided by the conical guide plate 5, the wastewater first flows downward from the conical tip of the first plate 301. As the wastewater flows along the first plate 301, most of it passes directly through the first plate 301, while a small amount flows through the first plate 301 to the second plate 302. The filtered wastewater is discharged from the drain pipe 2, while the impurities in the wastewater are intercepted by the first plate 301 and slide obliquely onto the second plate 302. As wastewater continues to be injected, the intercepted impurities accumulate between the second plate 302 and the inner wall of the upper cylinder 101. When the accumulated impurities increase, the water... Under the impact of the flow and the gravity of impurities, the filter plate 3 moves downward and squeezes the elastic element 4. As the filter plate 3 moves downward, the second plate 302 detaches from the upper cylinder 101 and is located inside the lower cylinder 102. A gap is formed between the second plate 302 and the inner wall of the lower cylinder 102, and the intercepted impurities fall out through the gap. When the filter plate 3 moves downward, the annular sealing plate 6 moves through the annular groove. The annular sealing plate 6 is used to intercept the small amount of water flowing from the first plate 301 to the second plate 302, preventing the small amount of water from flowing out through the gap when the second plate 302 detaches from the upper cylinder 101. Under the action of the conical inclined surface and when the water flows and impacts the filter plate 3, the filter plate 3 has a certain vibration force, especially the second plate 302. After the impurities on the second plate 302 fall off, the vibration becomes more pronounced. Under the action of the vibration, the impurities on the second plate 302 can be effectively dislodged. When the impurities intercepted on the second plate 302 fall off, the gravity applied to the filter plate 3 as a whole decreases. Due to the decrease in gravity, under the elastic force of the elastic element 4, the filter plate 3 as a whole slides back to its original position, allowing the second plate 302 to slide back into the upper cylinder 101 to intercept subsequent impurities again. The annular sealing plate 6 retracts into the annular groove, and the impurities previously blocked by the annular sealing plate 6 (the impurities blocked by the annular sealing plate 6 on the first plate 301) can slide back onto the second plate 302. It should be noted that the height of the annular sealing plate 6 penetrating the annular groove is limited, and it is used to filter water flow and small amounts of impurities. The filter plate 6 intercepts a large amount of impurities, blocking the water flow and preventing water from flowing from the first plate 301 to the second plate 302. This also prevents water from leaking out through the gap between the second plate 302 and the lower cylinder 102. When a large amount of impurities accumulate on the first plate 301, the umbrella-shaped structure of the filter plate 3 allows impurities to slide from the first plate 301 to the second plate 302, reducing the amount of impurities accumulated on the first plate 301 and reducing the weight applied to the filter plate 3 as a whole. This ensures that when impurities on the second plate 302 are removed, the filter plate 3 returns to its original position under the elastic force of the elastic element 4. The overall structure of the device, utilizing the umbrella-shaped structure of the filter plate 3, allows impurities to slide down towards the lower end during interception.This design allows intercepted impurities to slide onto the second plate 302, preventing blockage of the first plate 301 and ensuring normal wastewater filtration. Simultaneously, the elastic element 4 causes the second plate 302 to slide downwards due to the weight of the accumulated impurities, discharging the intercepted impurities. After discharge, the filter plate 3 returns to its original position, achieving intermittent automatic impurity removal. This not only effectively cleans the intercepted impurities periodically but also ensures the filtration process remains uninterrupted, improving wastewater filtration efficiency. The annular sealing plate 6 and annular groove, through which the filter plate 3 slides up and down during impurity removal, allow the annular sealing plate 6 to temporarily block the water flow, preventing wastewater loss and improving practicality.

[0043] like Figure 6 As shown, in some embodiments, two sleeves 7 are provided on both the first plate 301 and the second plate 302, and an annular through groove communicating with the annular through groove is formed between the two sleeves 7. The annular sealing plate 6 is movably inserted into the annular through groove. The two sleeves 7 are used to extend the depth of the annular through groove, such as... Figure 2 and Figure 6 As shown, the second plate 302 has a certain depth inside the upper cylinder 101. Due to the weight of the accumulated impurities, the second plate 302 slides a certain distance inside the upper cylinder 101 before it can detach from the upper cylinder 101 and enter the lower cylinder 102. The added sleeve 7 not only allows the annular sealing plate 6 to effectively block the annular groove, but also allows the second plate 302 to detach from the upper cylinder 101 after sliding for a certain period of time. The annular sealing plate 6 needs to slide inside the annular groove to slide through the annular groove. This increases the time for the annular sealing plate 6 to slide through the annular groove, so that the annular sealing plate 6 can only slide through the annular groove when the second plate 302 is completely detached from the upper cylinder 101. This allows the second plate 302 to intercept as many accumulated impurities as possible, ensuring that the amount of accumulated impurities is sufficient and that the weight of the accumulated impurities effectively drives the filter plate 3 downward, thereby removing impurities.

[0044] like Figure 4As shown, in some embodiments, the elastic element 4 includes: a ring 401, which is mounted on the drain pipe 2 via a support rod; and several elastic strips 402, which are obliquely connected between the ring 401 and the filter plate 3 and arranged in a ring array. When the filter plate 3 is lowered due to the weight of the accumulated impurities, the filter plate 3 will squeeze the elastic strips 402. After the impurities on the second plate 302 are removed, the filter plate 3 will reset under the influence of the elastic strips 402 due to the reduction in weight. Since the several elastic strips 402 are obliquely arranged, the filter plate 3 will rotate at a certain speed when sliding up and down. By utilizing the centrifugal force of rotation, the second plate 302 can remove impurities more quickly and effectively.

[0045] like Figure 3 and Figure 5 As shown, in some embodiments, a shaft 8 rotates through the center of the first plate 301, and several first scrapers 9 are connected to the shaft 8. The several first scrapers 9 all abut against and overlap the outer surface of the first plate 301. An adjustment part 10 is provided on the drain pipe 2. When the filter plate 3 slides, the adjustment part 10 adjusts the shaft 8 to rotate. By rotating the shaft 8 and the first scrapers 9 provided on the shaft 8, when the filter plate 3 moves up and down, the adjustment part 10 drives the shaft 8 to rotate, so that the several first scrapers 9 rotate around the shaft 8 as the center, thereby scraping the first plate 301. The scraping of the first scrapers 9 ensures the filtration effect of the first plate 301 and avoids the first plate 301 from being blocked by impurities, thereby further improving the overall filtration effect of the device.

[0046] like Figure 4 and Figure 5 As shown, in some embodiments, the adjusting part 10 includes: a support plate 1001, which is set on the inner wall of the drain pipe 2 by a support rod; a guide rod 1002, which is set on the support plate 1001; a spiral groove 1003 is opened on the outer surface of the shaft 8; the end of the guide rod 1002 is slidably inserted into the spiral groove 1003; since the end of the guide rod 1002 is slidably inserted into the spiral groove 1003, and the position of the guide rod 1002 is fixed, when the filter plate 3 slides up and down, the guide rod 1002 slides along the spiral groove 1003, thereby driving the shaft 8 to rotate.

[0047] like Figure 5 As shown, in some embodiments, a ball bearing 11 is tumbled into the end of the guide rod 1002. The ball bearing 11 is tumbled into the spiral groove 1003. By setting the ball bearing 11, the frictional resistance when the guide rod 1002 slides along the spiral groove 1003 is reduced. This not only improves the smoothness of the up-and-down movement of the filter plate 3, but also improves the smoothness of the rotation of the shaft 8. It ensures that the sliding fit between the guide rod 1002 and the spiral groove 1003 will not hinder the rotation of the shaft 8 or the movement of the filter plate 3, thereby improving practicality.

[0048] like Figure 3 As shown, in some embodiments, the free end of the first scraper 9 is connected to a second scraper 13 via a second U-shaped frame 12. The second scraper 13 abuts against and overlaps with the outer surface of the second plate 302. To make the device more reasonable, preferably, the inner diameter longitudinal section of the second U-shaped frame 12 is larger than the outer diameter longitudinal section of the first U-shaped frame 303. The second U-shaped frame 12 can pass over the first U-shaped frame 303 as the first scraper 9 rotates. With the second scraper 13, when the first scraper 9 scrapes the first plate 301, the second scraper 13 scrapes the second plate 302 to ensure that the impurities accumulated on the second plate 302 can be discharged smoothly, thereby improving the impurity removal efficiency.

[0049] like Figure 5 As shown, in some embodiments, a through hole 14 is provided on the support plate 1001, and the shaft 8 moves through the through hole 14. The through hole 14 and the insertion and cooperation of the shaft 8 with the through hole 14 are used to guide and limit the filter plate 3, so as to ensure that the filter plate 3 always remains coaxial with the drain pipe 2 when it moves downward or rotates, thereby ensuring the overall stability of the device for filtering and removing impurities.

[0050] like Figure 2 As shown, in some embodiments, a guide tube 15 is provided on the outer surface of the drain pipe 2, and a spiral plate 16 is provided between the outer surface of the guide tube 15 and the inner wall of the lower cylinder 102. A guide plate 17 corresponding to the lower end of the spiral plate 16 is connected to the outer surface of the lower cylinder 102. Through the guide tube 15, a waste discharge channel is formed between the drain pipe 2 and the lower cylinder 102. The spiral plate 16 is used to guide the discharged impurities, so that the discharged impurities are discharged from one part and are discharged with the help of the guide plate 17, making it more convenient to clean impurities and thus improving practicality.

[0051] like Figure 2 As shown, in some embodiments, the spiral plate 16 is an electromagnetic plate. When the spiral plate 16 is energized, it generates magnetic force. Since there are some metallic impurities, such as iron, in the wastewater, when the spiral plate 16 is energized, under the action of magnetic force, some iron metal impurities will be adsorbed onto the spiral plate 16, while other non-metallic impurities will fall off directly. After the other non-metallic impurities are discharged, the power is turned off, and the metallic impurities are discharged again. This can play a role in screening metallic and non-metallic impurities, so as to facilitate the recycling of metallic impurities and improve practicality.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A metallurgical wastewater treatment equipment, characterized in that, include: The processing cylinder (1) has an upper cylinder (101) and a lower cylinder (102) that are connected to each other. A drain pipe (2) is coaxially arranged in the lower cylinder (102) through a support rod. The filter plate (3) has an umbrella-shaped structure and is slidably arranged in the upper cylinder (101). The filter plate (3) includes a first plate body (301) and a second plate body (302). The first plate body (301) and the second plate body (302) are connected by a first U-shaped frame (303), and an annular through groove is left between them. The second plate body (302) An elastic element (4) is connected to the top end of the drain pipe (2). A shaft (8) rotates through the center of the first plate (301). Several first scrapers (9) are connected to the shaft (8). The several first scrapers (9) all abut against and overlap the outer surface of the first plate (301). An adjustment part (10) is provided on the drain pipe (2). When the filter plate (3) slides, the adjustment part (10) adjusts the shaft (8) to rotate. The adjustment part (10) includes: a bearing plate (10) 01), is set on the inner wall of the drain pipe (2) by a support rod; guide rod (1002) is set on the bearing plate (1001), the outer surface of the shaft (8) is provided with a spiral groove (1003), the end of the guide rod (1002) is slidably inserted into the spiral groove (1003), the free end of the first scraper (9) is connected to the second scraper (13) through the second U-shaped frame (12), the second scraper (13) abuts and overlaps with the outer surface of the second plate (302); conical guide plate ( 5) The conical tip of the conical guide plate (5) is located on the inner wall of the upper cylinder (101) and corresponds to the tip of the first plate (301); the annular sealing plate (6) is set on the drain pipe (2) by a support rod. The annular sealing plate (6) slides through the annular groove. Two sleeves (7) are provided on both the first plate (301) and the second plate (302). An annular through groove is formed between the two sleeves (7) and communicates with the annular through groove. The annular sealing plate (6) is movably inserted into the annular through groove.

2. The metallurgical wastewater treatment equipment according to claim 1, characterized in that, The elastic element (4) includes: a ring (401) which is mounted on the drain pipe (2) by a support rod; and several elastic strips (402) which are obliquely connected between the ring (401) and the filter plate (3) and are distributed in a ring array.

3. The metallurgical wastewater treatment equipment according to claim 1, characterized in that, The end of the guide rod (1002) is provided with a ball bearing (11) that is tumbled into the spiral groove (1003).

4. The metallurgical wastewater treatment equipment according to claim 1, characterized in that, The bearing plate (1001) has a through hole (14), and the shaft (8) moves through the through hole (14).

5. The metallurgical wastewater treatment equipment according to claim 1, characterized in that, The outer surface of the drain pipe (2) is provided with a guide tube (15), and a spiral plate (16) is provided between the outer surface of the guide tube (15) and the inner wall of the lower cylinder (102). The outer surface of the lower cylinder (102) is connected to a guide plate (17) corresponding to the lower end of the spiral plate (16).

6. The metallurgical wastewater treatment equipment according to claim 5, characterized in that, The spiral plate (16) is an electromagnetic plate.

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