Sludge scraping device for electroplating wastewater treatment tank

Abstract

The utility model discloses a sludge scraping device for an electroplating wastewater treatment tank, which relates to the technical field of electroplating wastewater treatment and comprises a treatment tank, a scraping mechanism and a linear travel mechanism. The inner walls of the two ends of the treatment pond are inclined planes, the treatment pond is ship-shaped, and drain outlets are formed in the bottoms of the two ends of the treatment pond; the scraping mechanism comprises a cross beam, a scraping plate and a plurality of round rods vertically arranged at the top of the scraping plate, the round rods upwards slide to penetrate through the cross beam, a spring is arranged on the periphery of each round rod, the two ends of each spring are connected with the cross beam and the scraping plate respectively, the scraping plate is arranged at one end of the treatment tank, the bottom of the scraping plate is tightly attached to the inner wall of the end, and the springs are in a compressed state. The side surface of the scraper clings to the inner wall of the treatment tank side surface; the linear travel mechanism is erected above the treatment pond, is connected with the cross beam and is used for enabling the cross beam to move along the long axis direction of the treatment pond. According to the scheme, sludge on the inner wall of the treatment tank can be automatically scraped.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating wastewater treatment, in particular to a sludge scraping device for an electroplating wastewater treatment pool. Background Art

[0002] The electroplating industry produces a lot of electroplating wastewater, which contains toxic heavy metal ions such as chromium, copper, and nickel. Therefore, chemical agents such as ferrous sulfate and lime are constantly consumed in the wastewater treatment tank, and precipitation is generated to form a large amount of sludge. After the sludge is precipitated in the wastewater treatment tank, the sludge at the bottom is scraped to one end of the wastewater treatment tank by using a scraping device, and then the sludge is released into the sludge treatment tank through the sewage outlet. The problem is that the existing scraping device is not effective in scraping the inner wall of the wastewater treatment tank, resulting in a lot of sludge remaining on the inner wall, and a manual hand-held scraper is required to scrape the inner wall for the second time. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a sludge scraping device for an electroplating wastewater treatment pool, which can automatically scrape the sludge on the inner wall of the treatment pool.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A sludge scraping device for an electroplating wastewater treatment tank comprises a treatment tank, a scraping mechanism and a linear travel mechanism.

[0006] The inner walls at both ends of the treatment pool are inclined surfaces, the treatment pool is in the shape of a ship, and there are sewage outlets at the bottom of both ends of the treatment pool;

[0007] The scraping mechanism includes a crossbeam, a scraper and a plurality of round rods vertically arranged on the top of the scraper. The plurality of round rods slide upward and penetrate the crossbeam. A spring is arranged on the outer periphery of each round rod. The two ends of the spring are respectively connected to the crossbeam and the scraper. The scraper is arranged at one end of the treatment tank. The bottom of the scraper is in close contact with the inner wall of the end. The spring is in a compressed state. The side of the scraper is in close contact with the inner wall of the side of the treatment tank.

[0008] The linear travel mechanism is erected above the treatment pool and is connected to the crossbeam to enable the crossbeam to move along the long axis direction of the treatment pool.

[0009] Furthermore, a scraper head is provided at the bottom of the scraper, and the longitudinal section of the scraper head is an axisymmetric triangle, with one corner of the triangle facing downward.

[0010] Furthermore, a scraper head is provided at the bottom of the scraper, and the longitudinal section of the scraper head is an axisymmetric pentagon, one corner of the pentagon is set downward, and one side completely overlaps with the scraper.

[0011] Furthermore, a stopper is provided at the top of the round rod, and the diameter of the stopper is larger than the diameter of the round rod.

[0012] Furthermore, the linear travel mechanism includes a guide rod, a screw rod and a motor. The guide rod is arranged parallel to the screw rod, and the ends of the two are connected to the corresponding support plates. The motor output shaft is connected to one end of the screw rod. One end of the crossbeam is threadedly engaged with the screw rod, and the other end is slidably engaged with the guide rod.

[0013] Furthermore, a flat plate is provided on the top of the scraper. Along the short axis direction of the treatment tank, the size of the flat plate is larger than that of the scraper. The bottom of the round rod is provided on the flat plate. Both ends of the spring are respectively connected to the crossbeam and the flat plate.

[0014] Furthermore, a pressure plate is arranged on each side of the treatment pool, and there is a certain gap between the bottom surface of the pressure plate and the top surface of the treatment pool. The gap is used to pass the flat plate. When the bottom of the scraper contacts the inner bottom surface of the treatment pool, the bottom surface of the flat plate contacts the top surface of the treatment pool. At this time, the flat plate is located at the entrance of the gap.

[0015] The beneficial effects of the utility model are as follows: the inner walls at both ends of the treatment tank are set as inclined surfaces, and a scraper is used to efficiently scrape off the sludge on the inner wall at the end of the treatment tank; when the scraper moves horizontally, the sludge on the bottom surface and the inner walls on both sides of the treatment tank can also be scraped off; the scraping mechanism has an ingenious structure, and when the scraper is located at the end of the treatment tank, the scraper moves horizontally and also moves downward under the squeezing action of the spring, ensuring that the bottom of the scraper is always in close contact with the inner wall at the end of the treatment tank, thereby scraping off the sludge on the inner wall at the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram of a scraping device is shown;

[0017] Figure 2 One longitudinal cross-section of the scraper is shown;

[0018] Figure 3 Another longitudinal cross-sectional view of the scraper is shown;

[0019] Figure 4 A front view of the scraper device is shown. DETAILED DESCRIPTION

[0020] like Figure 1 As shown, this embodiment provides a sludge scraping device for an electroplating wastewater treatment tank, comprising a treatment tank 1, a scraping mechanism 2, and a linear travel mechanism 3.

[0021] Specifically, Figure 1 , Figure 3 As shown, the inner walls at both ends of the treatment pool 1 are inclined surfaces, and the inner walls on both sides of the treatment pool 1 are vertical surfaces. The treatment pool 1 is in the shape of a ship. A sewage outlet 11 is provided at the bottom of both ends of the treatment pool 1. An automatic valve is provided at the sewage outlet 11 for controlling the opening and closing of the sewage outlet 11. The automatic valve is a prior art and will not be described in detail here.

[0022] Specifically, the scraping mechanism 2 includes a cross beam 23, a scraper 21 and three round rods 22. The three round rods 22 are vertically arranged on the top of the scraper 21. The three round rods 22 all slide upward and penetrate the cross beam 23. In order to prevent the round rods 22 from detaching from the cross beam 23, a stopper 221 is provided on the top of the round rod 22. The diameter of the stopper 221 is larger than the diameter of the round rod 22. A spring 24 is provided on the outer periphery of each round rod 22. The two ends of the spring 24 are respectively connected to the cross beam 23 and the scraper 21. The scraper 21 is arranged at one end of the treatment tank 1, and the bottom of the scraper 21 is close to the inner wall of the end, and the side of the scraper 21 is close to the inner wall of the side of the treatment tank 1.

[0023] Specifically, the linear travel mechanism 3 is mounted above the treatment pool 1 through a support plate, and the linear travel mechanism 3 is connected to the crossbeam 23, so as to move the crossbeam 23 along the long axis direction of the treatment pool 1. There are many ways to implement the linear travel mechanism 3, such as including a guide rod 31, a screw rod 32 and a motor 33, wherein the guide rod 31 and the screw rod 32 are arranged in parallel, and the ends of the two are connected to the corresponding support plate, the output shaft of the motor 33 is connected to one end of the screw rod 32, one end of the crossbeam 23 is threadedly engaged with the screw rod 32, and the other end is slidably engaged with the guide rod 31.

[0024] The function of the scraper 21 is to scrape the sludge on the inner wall of the treatment tank 1. In order to improve the scraping effect, the following measures can be taken: Figure 2 As shown, a scraper head 211 is provided at the bottom of the scraper 21. The longitudinal section of the scraper head 211 is an axisymmetric triangle, and one corner of the triangle is set downward, that is, the bottom of the scraper head 211 is a pointed tip.

[0025] Preferably, considering that sludge is easily deposited on the top of the triangular scraper head 211, Figure 3 As shown, the longitudinal cross section of the scraper head 211 is set to be an axisymmetric pentagon, one corner of the pentagon is set downward, and one side completely overlaps with the scraper plate 21.

[0026] exist Figure 1In this state, the spring 24 is in a compressed state, and the spring 24 exerts a downward force on the scraper 21. When it is necessary to scrape off the sludge, the cross beam 23 and the scraper 21 thereon are moved toward the other end of the treatment tank 1 through the linear stroke mechanism 3. While the scraper 21 moves horizontally, the scraper 21 also moves downward under the squeezing action of the spring 24, ensuring that the bottom of the scraper 21 always clings to the inner wall of the end of the treatment tank 1, thereby scraping off the sludge on the inner wall downward; when the bottom of the scraper 21 contacts the inner bottom surface of the treatment tank 1, the spring 24 is still in a compressed state; the linear stroke mechanism 3 continues to work, and the scraper 21 moves horizontally. The scraper 21 moves to the sewage outlet 11 at the other end of the treatment tank 1, thereby scraping the sludge to the other end of the treatment tank 1; the sewage outlet 11 at the other end of the treatment tank 1 is opened, thereby releasing the sludge; when the scraper 21 moves to the sewage outlet 11 at the other end of the treatment tank 1, the scraper 21 can be manually lifted up, and the linear stroke mechanism 3 continues to work, so that the scraper 21 passes over the sludge on the inner wall of the other end of the treatment tank 1. After the scraper 21 reaches a high place, the staff releases the scraper 21, and the bottom of the scraper 21 is close to the inner wall of the other end of the treatment tank 1, and then the linear stroke mechanism 3 moves the scraper 21 in the opposite direction, thereby scraping off the sludge on the inner wall of the other end of the treatment tank 1.

[0027] When the scraper 21 scrapes the sludge on the bottom surface of the treatment tank 1, in order to improve stability and prevent the scraper 21 from moving upward due to encountering stubborn sludge, the present embodiment adopts the following measures: Figure 1 , Figure 4 As shown, a flat plate 25 is provided on the top of the scraper 21. Along the short axis direction of the treatment tank 1, the size of the flat plate 25 is larger than that of the scraper 21. The bottom of the round rod 22 is provided on the flat plate 25. The two ends of the spring 24 are respectively connected to the cross beam 23 and the flat plate 25. A pressure plate 12 is provided on each side of the treatment tank 1. There is a certain gap between the bottom surface of the pressure plate 12 and the top surface of the treatment tank 1. The gap is used to pass the flat plate 25. When the bottom of the scraper 21 contacts the inner bottom surface of the treatment tank 1, the bottom surface of the flat plate 25 contacts the top surface of the treatment tank 1. At this time, the flat plate 25 is located at the entrance of the gap. When the scraper 21 scrapes the sludge on the inner bottom surface of the treatment tank 1, the flat plate 25 is restricted by the gap.

[0028] When scraping the sludge on the inner wall of the other end of the treatment tank 1, the scraper 21 is lifted up manually; preferably, an automatic lifting mechanism can also be used instead of manual labor, as follows: the automatic lifting mechanism includes a pneumatic lifting rod and a support plate arranged on the top thereof, the pneumatic lifting rod is arranged on the bracket, when the scraper 21 moves to the sewage outlet 11 at the other end of the treatment tank 1, the support plate is just located below the end of the flat plate 25, and the support plate is moved upward under the action of the pneumatic lifting rod, thereby lifting the scraper 21 to a preset position, and the linear stroke mechanism 3 moves the scraper 21 horizontally until the scraper 21 passes over the sludge on the inner wall of the other end of the treatment tank 1, when the end of the flat plate 25 is separated from the support plate, the scraper 21 loses the restriction of the support plate and moves downward under the action of the spring 24, and the bottom of the scraper 21 is close to the inner wall of the other end of the treatment tank 1, and then the linear stroke mechanism 3 moves the scraper 21 in the opposite direction, thereby scraping the sludge on the inner wall of the other end of the treatment tank 1.

[0029] The above embodiments are only used to illustrate the technical ideas and features of the utility model, and are not intended to be the only or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A sludge scraping device for electroplating wastewater treatment pool, characterized in that: It comprises a treatment tank (1), a scraping mechanism (2), and a linear travel mechanism (3); The inner walls at both ends of the treatment pool (1) are inclined surfaces, the treatment pool (1) is in the shape of a ship, and sewage outlets (11) are provided at the bottom of both ends of the treatment pool (1); The scraping mechanism (2) comprises a crossbeam (23), a scraper (21), and a plurality of round rods (22) vertically arranged on the top of the scraper (21); the plurality of round rods (22) slide upward and penetrate the crossbeam (23); a spring (24) is arranged on the outer periphery of each round rod (22); the two ends of the spring (24) are respectively connected to the crossbeam (23) and the scraper (21); the scraper (21) is arranged at one end of the treatment pool (1); the bottom of the scraper (21) is in close contact with the inner wall of the end; the spring (24) is in a compressed state; and the side of the scraper (21) is in close contact with the inner wall of the side of the treatment pool (1); The linear travel mechanism (3) is mounted above the treatment pool (1), and the linear travel mechanism (3) is connected to the crossbeam (23) and is used to move the crossbeam (23) along the long axis direction of the treatment pool (1).

2. The sludge scraping device for electroplating wastewater treatment pool according to claim 1, characterized in that: A scraper head (211) is provided at the bottom of the scraper (21); the longitudinal cross-section of the scraper head (211) is an axisymmetric triangle, with one corner of the triangle being arranged downward.

3. The sludge scraping device for electroplating wastewater treatment pool according to claim 1, characterized in that: A scraper head (211) is provided at the bottom of the scraper (21). The longitudinal cross-section of the scraper head (211) is an axisymmetric pentagon, one corner of the pentagon is arranged downward, and one side completely overlaps with the scraper (21).

4. The sludge scraping device for electroplating wastewater treatment pool according to claim 1, characterized in that: A stopper (221) is provided at the top of the round rod (22), and the diameter of the stopper (221) is greater than the diameter of the round rod (22).

5. The sludge scraping device for electroplating wastewater treatment pool according to claim 1, characterized in that: The linear travel mechanism (3) comprises a guide rod (31), a screw rod (32) and a motor (33). The guide rod (31) and the screw rod (32) are arranged in parallel, and the ends of the two are connected to corresponding support plates. The output shaft of the motor (33) is connected to one end of the screw rod (32). One end of the crossbeam (23) is threadedly engaged with the screw rod (32), and the other end is slidably engaged with the guide rod (31).

6. The sludge scraping device for electroplating wastewater treatment pool according to claim 1, characterized in that: A flat plate (25) is provided on the top of the scraper (21). Along the short axis direction of the treatment tank (1), the size of the flat plate (25) is larger than the size of the scraper (21). The bottom of the round rod (22) is provided on the flat plate (25). The two ends of the spring (24) are respectively connected to the crossbeam (23) and the flat plate (25).

7. The sludge scraping device for electroplating wastewater treatment pool according to claim 6, characterized in that: A pressure plate (12) is provided on each side of the treatment tank (1). A certain gap is formed between the bottom surface of the pressure plate (12) and the top surface of the treatment tank (1). The gap is used to pass the flat plate (25). When the bottom of the scraper (21) contacts the inner bottom surface of the treatment tank (1), the bottom surface of the flat plate (25) contacts the top surface of the treatment tank (1). At this time, the flat plate (25) is located at the entrance of the gap.

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