Wastewater zero-discharge filtering device

Abstract

The utility model discloses a wastewater zero-discharge filtering device, and belongs to the technical field of wastewater filtering. The device mainly comprises a treatment cylinder and a filter box located at the lower end of the treatment cylinder, a cylinder cover is arranged at the top of the treatment cylinder and connected with the treatment cylinder through bolts, an injection pipe is arranged at the top of the cylinder cover, a stirring mechanism is arranged in the treatment cylinder, and the lower end of the treatment cylinder communicates with an L-shaped pipe. According to the wastewater zero-discharge filtering device disclosed by the invention, the treatment barrel with the conical bottom is matched with the L-shaped pipe communicated with the bottom of the treatment barrel, so that the effect of completely discharging wastewater in the treatment barrel can be realized, and the wastewater is prevented from being retained in the treatment barrel to influence the operation efficiency of the treatment barrel; the two groups of filter plates are matched with an ultrafiltration membrane in the filter box, so that the wastewater is filtered more thoroughly, and the zero-emission effect is realized.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater filtration, and in particular to a wastewater zero-discharge filtration device. Background Art

[0002] The wastewater zero discharge filtration device is a device used to treat industrial wastewater, which is designed to remove pollutants from the wastewater to achieve zero discharge or reduce discharge to an extremely low level.

[0003] Chinese patent: CN202221033354.2 discloses a zero-discharge treatment device for chromium-containing wastewater. In view of the fact that the existing wastewater treatment device does not disassemble and maintain the filter assembly, resulting in the problem of clogging of the filter plate after long-term use, the plug-in plate on the surface of the filter plate is plugged into the positioning plate inside the treatment channel, so as to facilitate the replacement of the filter plate, and the installation and removal of the filter cartridge are facilitated by the cooperation of the guide block on the filter cartridge and the limiting groove in the filter tube, so as to improve the treatment effect of the wastewater;

[0004] However, there is a problem in the wastewater treatment process of the above-mentioned prior art, that is, the connection between the filter tube and the treatment tube is arranged on the side of the treatment tube. This design causes the wastewater at the bottom of the treatment tube to be located below the connection between the filter tube and the treatment tube, thereby causing part of the wastewater to be retained at the bottom of the treatment tube, resulting in the wastewater being unable to be discharged smoothly from the filter tube, which directly affects the operating efficiency of the wastewater treatment system.

[0005] Therefore, it is necessary to provide a wastewater zero discharge filtering device to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide a wastewater zero-discharge filtration device, which solves the problem in the prior art that wastewater is retained at the bottom of the treatment cylinder during wastewater treatment, resulting in reduced overall operating efficiency.

[0008] The technical solution adopted by the present application to solve the technical problem is: a wastewater zero-discharge filtering device, including a treatment cylinder, and also including:

[0009] A filter box is arranged at the lower end of the treatment cylinder;

[0010] An L-shaped tube connected to the bottom of the treatment tube, the L-shaped tube comprising a vertical portion, a curved portion and a transverse portion, wherein a solenoid valve is installed on the vertical portion;

[0011] A filter tube is connected to the transverse portion and one end of the filter tube is connected to the filter box;

[0012] A filter element is arranged inside the filter tube;

[0013] A stirring mechanism is arranged inside the processing cylinder;

[0014] Wherein, a cylinder cover is arranged at the upper end of the treatment cylinder, and an injection pipe is arranged at the upper end of the cylinder cover.

[0015] Furthermore, a second sealing cover is provided on the top thread of the filter tube, a limiting groove is opened inside the filter tube, the filter element includes a filter plate arranged inside the filter tube, and two groups of filter plates are provided, a limiting block is provided on the outer side of the filter plate, the limiting block is adapted to the limiting groove, and a connecting rod is provided between the two groups of filter plates.

[0016] Furthermore, an abutment rod is provided at the bottom of the second sealing cover, and a pull rod is provided at the top of a group of connecting rods, and the pull rod is in abutment with the abutment rod.

[0017] Furthermore, the outer side of the curved portion is connected to a sewage pipe, and the end of the sewage pipe is threadedly connected to a first sealing cover.

[0018] Furthermore, the stirring mechanism includes a motor installed on the top of the drum cover, the output shaft end of the motor is connected to a rotating shaft, and a stirring paddle and a scraper are respectively arranged on the outer side of the rotating shaft.

[0019] Furthermore, a limit frame is arranged inside the filter box, the limit frame is inclined, and a guide plate is slidably connected to the inner side of the limit frame. An ultrafiltration membrane is arranged on one side of the guide plate, and a sealing plate is arranged on the other side of the guide plate. The sealing plate is connected to the filter box by bolts, and one side of the filter box is connected to a drain pipe.

[0020] Furthermore, the cylinder cover is connected to the processing cylinder by bolts.

[0021] The beneficial effects of the present application are as follows: the present application provides a wastewater zero-discharge filtering device, which can achieve the effect of discharging all the wastewater inside the treatment cylinder through the cooperation of the treatment cylinder with a conical bottom and the L-shaped tube connected to the bottom thereof, preventing the wastewater from being retained inside the treatment cylinder and affecting its operating efficiency, and through the cooperation of the two sets of filter plates and the ultrafiltration membrane inside the filter box, the wastewater is filtered more thoroughly, thereby achieving the effect of zero discharge;

[0022] Through the setting of the stirring mechanism, it can scrape the inner wall of the treatment cylinder while mixing the wastewater and the reducing agent, preventing the residue in the wastewater from adhering to the inner wall of the treatment cylinder, further improving its filtering effect;

[0023] Through the resistance of the resistance rod and the pull rod, the filter plate can be prevented from floating up and down when the water flow impacts the filter plate, further improving its filtering effect;

[0024] By setting the sewage pipe and the first sealing cover, the L-shaped pipe can be easily cleaned to prevent the phenomenon of being unable to be used normally due to blockage.

[0025] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0027] In the attached picture:

[0028] Figure 1 It is an overall schematic diagram of a wastewater zero-discharge filtration device in this application;

[0029] Figure 2 for Figure 1 A cross-sectional view of

[0030] Figure 3 A schematic diagram of the structure of a stirring mechanism of a wastewater zero-discharge filtration device;

[0031] Figure 4 A schematic diagram of an L-shaped tube and filter structure of a wastewater zero-discharge filter device;

[0032] Figure 5 A cross-sectional view of a filter box of a wastewater zero discharge filter device;

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Treatment cylinder; 11. Cylinder cover; 12. Injection pipe; 13. L-shaped pipe; 131. Vertical portion; 132. Bending portion; 133. Horizontal portion; 14. Solenoid valve; 15. Filter tube; 151. Second sealing cover; 152. Abutment rod; 153. Limiting groove; 16. Filter element; 161. Filter plate; 162. Limiting block; 163. Connecting rod; 164. Pull rod; 17. Drain pipe; 171. First sealing cover; 2. Filter box; 21. Limiting frame; 22. Guide plate; 23. Ultrafiltration membrane; 24. Sealing plate; 25. Drain pipe; 3. Stirring mechanism; 31. Motor; 32. Rotating shaft; 33. Stirring paddle; 34. Scraper. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0037] like Figures 1 to 5 As shown, the present application provides a wastewater zero-discharge filtering device, comprising a treatment barrel 1 and a filter box 2 located at the lower end of the treatment barrel 1, a barrel cover 11 is arranged on the top of the treatment barrel 1, and the barrel cover 11 is connected to the treatment barrel 1 by bolts, and an injection pipe 12 is arranged on the top of the barrel cover 11, and the injection pipe 12 is used to inject wastewater and a reducing agent into the treatment barrel 1, and a stirring mechanism 3 is arranged inside the treatment barrel 1, and the stirring mechanism 3 is used to mix the wastewater and the reducing agent, and the bottom of the treatment barrel 1 is conical, and the treatment barrel 1 with a conical bottom can facilitate the discharge of wastewater to avoid its retention phenomenon, and the lower end of the treatment barrel 1 is connected with an L-shaped pipe 13, and the L-shaped pipe 13 includes a vertical portion 131, a curved portion 132 and a transverse portion 133, wherein the vertical portion 131 is connected to the bottom of the treatment barrel 1, and an electromagnetic valve 14 is installed on the vertical portion 131, and one end of the transverse portion 133 is connected with a filter pipe 15, and the filter pipe 15 is connected to the filter box 2, and a filter element 16 is arranged inside the filter pipe 15.

[0038] In this embodiment, first, wastewater and reducing agent are injected into the treatment barrel 1 through the injection pipe 12, and are fully mixed by the stirring mechanism 3 to perform preliminary treatment on the wastewater, and then the solenoid valve 14 is opened to allow the wastewater to enter the L-shaped tube 13 at the bottom of the treatment barrel 1. The wastewater can be completely discharged through the cooperation of the treatment barrel 1 with a conical bottom and the L-shaped tube 13 connected to the bottom of the treatment barrel 1, thereby preventing the wastewater from being retained in the treatment barrel 1, and then enters the filter tube 15 through the L-shaped tube 13, enters the filter box 2 after being filtered by the filter element 16, and is discharged after being filtered again in the filter box 2, thereby further increasing the filtering effect, and achieving a zero emission effect after multi-stage filtration, and at the same time, the barrel cover 11 is connected to the treatment barrel 1 by bolts, which can facilitate the separation of the barrel cover 11 from the treatment barrel 1, thereby facilitating the cleaning of the inside of the treatment barrel 1.

[0039] like Figure 4As shown, the filter element 16 includes a filter plate 161, and the filter plate 161 is provided with two groups. A connecting rod 163 is provided between the two groups of filter plates 161, and the connecting rod 163 is used to connect the two groups of filter plates 161. A limiting block 162 is provided on the outer side of the filter plate 161, and a pull rod 164 is provided on the top of one group of filter plates 161. The pull rod 164 is used to facilitate the two groups of filter plates 161 to be pulled out of the filter tube 15. A limiting groove 153 is provided inside the filter tube 15, and the limiting groove 153 is adapted to the limiting block 162. A second sealing cover 151 is threadedly connected to the top of the filter tube 15, and an abutting rod 152 is provided at the bottom of the second sealing cover 151. The abutting rod 152 is used to abut the pull rod 164 to prevent the filter plate 161 from moving up and down slowly when the water flow impacts.

[0040] In this embodiment, when the wastewater enters the filter tube 15 after passing through the L-shaped tube 13, it gradually passes through the two groups of filter plates 161, and the wastewater is filtered twice by the two groups of filter plates 161, so as to improve its filtering effect. By twisting the second sealing cover 151, it is separated from the filter tube 15, and then by pulling the pull rod 164, the two groups of filter plates 161 can be taken out of the filter tube 15, so as to facilitate cleaning or replacement. When installing the two groups of filter plates 161, the limit block 162 is inserted into the limit groove 153, and then the second sealing cover 151 is tightened onto the filter tube 15, so that the abutment rod 152 can abut the pull rod 164, so that when the wastewater impacts the filter plate 161, it can prevent the filter plate 161 from floating up and down to reduce the filtering effect.

[0041] like Figure 3 As shown, the stirring mechanism 3 includes a motor 31 installed on the top of the drum cover 11, the output shaft end of the motor 31 is connected to a rotating shaft 32, a stirring paddle 33 is provided on the outside of the rotating shaft 32, and a scraper 34 is also provided on the outside of the rotating shaft 32, and the scraper 34 is used to scrape the inner wall of the processing drum 1.

[0042] In this embodiment, by starting the motor 31, the motor 31 drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives the stirring paddle 33 to rotate, so that the wastewater in the treatment tube 1 and the reducing agent are fully mixed. The rotating shaft 32 drives the stirring paddle 33 to rotate and drives the scraper 34 to rotate at the same time, so that the scraper 34 scrapes along the inner wall of the treatment tube 1 to prevent the residue contained in the wastewater from adhering to the inner wall of the treatment tube 1.

[0043] like Figure 4 As shown, the curved portion 132 of the L-shaped tube 13 is connected to a sewage pipe 17 , and a first sealing cover 171 is threadedly connected to the end of the sewage pipe 17 .

[0044] In this embodiment, when there are a lot of residues in the wastewater that cause blockage of the curved portion 132 of the L-shaped tube 13, the first sealing cover 171 is twisted to separate it from the sewage pipe 17. At this time, the curved portion 132 can be cleaned through the sewage pipe 17, thereby preventing the L-shaped tube 13 from being blocked and inconvenient to clean.

[0045] like Figure 5 As shown, a limit frame 21 is arranged inside the filter box 2, and the limit frame 21 is inclined. A guide plate 22 is slidably connected between the limit frames 21. An ultrafiltration membrane 23 is arranged on one side of the guide plate 22, and a sealing plate 24 is arranged on the other side of the guide plate 22. The sealing plate 24 is connected to the filter box 2 by bolts, and a drain pipe 25 is connected to one side of the filter box 2.

[0046] In this embodiment, when the wastewater enters the filter box 2 after passing through the filter tube 15, the water flows along the guide plate 22, and then is filtered through the ultrafiltration membrane 23 on the guide plate 22. The ultrafiltration membrane 23 can filter pollutants such as particles, bacteria and viruses contained in the water, further improving the filtering effect, and then the wastewater is discharged from the drain pipe 25, thereby achieving a zero emission effect. At the same time, when the guide plate 22 and the ultrafiltration membrane 23 need to be replaced, the bolts connecting the sealing plate 24 and the filter box 2 are screwed and separated, and then the sealing plate 24 is pulled out from one side of the filter box 2, so that the guide plate 22 is pulled out from the limit frame 21, so that the guide plate 22 and the ultrafiltration membrane 23 are removed from the filter box 2 to facilitate cleaning or replacement.

[0047] To summarize: first, the wastewater and the reducing agent are injected into the treatment cylinder 1 through the injection pipe 12, the wastewater and the reducing agent are mixed through the stirring mechanism 3, and the inner wall of the treatment cylinder 1 is scraped by the scraper 34 during mixing to prevent residues from adhering to the inner wall of the treatment cylinder 1, and then the solenoid valve 14 is opened. Through the design of the treatment cylinder 1 with a tapered bottom and the L-shaped tube 13 connected to the bottom thereof, the wastewater in the treatment cylinder 1 can be completely discharged to prevent the wastewater from being retained. The wastewater enters the filter tube 15 through the L-shaped tube 13, enters the filter box 2 under the secondary filtration of the filter element 16, and then flows to the ultrafiltration membrane 23 through the guide plate 22, and is discharged from the drain pipe 25 after being filtered by the ultrafiltration membrane 23, thereby achieving a zero emission effect.

[0048] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wastewater zero discharge filtration device, comprising a treatment cylinder (1), characterized in that: Also includes: A filter box (2) is arranged at the lower end of the treatment cylinder (1); An L-shaped tube (13) is connected to the bottom of the treatment cylinder (1), wherein the L-shaped tube (13) comprises a vertical portion (131), a curved portion (132) and a transverse portion (133), wherein a solenoid valve (14) is installed on the vertical portion (131); A filter tube (15) connected to the transverse portion (133) and having one end connected to the filter box (2); A filter element (16) is arranged inside the filter tube (15); A stirring mechanism (3) is arranged inside the processing cylinder (1); Wherein, a cylinder cover (11) is arranged at the upper end of the treatment cylinder (1), and an injection pipe (12) is arranged at the upper end of the cylinder cover (11).

2. A wastewater zero discharge filtration device according to claim 1, characterized in that: The top thread of the filter tube (15) is provided with a second sealing cover (151); a limiting groove (153) is provided inside the filter tube (15); the filter element (16) comprises a filter plate (161) arranged inside the filter tube (15); and two groups of filter plates (161) are provided; a limiting block (162) is provided on the outer side of the filter plate (161); the limiting block (162) is adapted to the limiting groove (153); and a connecting rod (163) is provided between the two groups of filter plates (161).

3. A wastewater zero discharge filtration device according to claim 2, characterized in that: The bottom of the second sealing cover (151) is provided with an abutting rod (152), and the top of a group of connecting rods (163) is provided with a pulling rod (164), and the pulling rod (164) is in abutment with the abutting rod (152).

4. A wastewater zero discharge filtration device according to claim 3, characterized in that: The outer side of the curved portion (132) is connected to a sewage discharge pipe (17), and the end of the sewage discharge pipe (17) is threadedly connected to a first sealing cover (171).

5. A wastewater zero discharge filtration device according to claim 4, characterized in that: The stirring mechanism (3) comprises a motor (31) mounted on the top of the cylinder cover (11); the output shaft end of the motor (31) is connected to a rotating shaft (32); and a stirring paddle (33) and a scraper (34) are respectively arranged on the outer side of the rotating shaft (32).

6. A wastewater zero discharge filtration device according to claim 5, characterized in that: A limit frame (21) is arranged inside the filter box (2), the limit frame (21) is inclined, a guide plate (22) is slidably connected to the inner side of the limit frame (21), an ultrafiltration membrane (23) is arranged on one side of the guide plate (22), a sealing plate (24) is arranged on the other side of the guide plate (22), the sealing plate (24) is connected to the filter box (2) by bolts, and a drainage pipe (25) is connected to one side of the filter box (2).

7. A wastewater zero discharge filtration device according to claim 6, characterized in that: The cylinder cover (11) is connected to the treatment cylinder (1) via bolts.

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