Sewage multi-stage filtering device

Abstract

The utility model belongs to the technical field of sewage filtering, and particularly relates to a sewage multi-stage filtering device which comprises a filtering box and a supporting seat, the supporting seat is fixedly connected to the lower end of the filtering box, a box cover is connected to the upper end of the filtering box, and a feeding pipe is fixedly connected to the left side of the upper end of the box cover. A discharging pipe is fixedly connected to the middle position of the lower portion of the right end in the filtering box, a valve is arranged in the discharging pipe, and filtering mechanisms are connected to the inner end and the outer end of the filtering box. When the sewage multi-stage filtering device is used, a motor is firstly started, an output shaft of the motor rotates to drive a rotating rod to rotate, so that a cylinder and a scraping plate are driven to rotate on a first filter screen, a second filter screen and a third filter screen, then sewage is poured into a filtering box from a feeding pipe, and the sewage is filtered by the first filter screen, the second filter screen and the third filter screen in a graded manner; impurities entrained in the sewage are removed, and then the sewage is discharged from the discharge pipe at the lower end.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtration, in particular to a sewage multi-stage filtration device. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical treatment, catering, etc., and is increasingly entering the daily lives of ordinary people. In the process of sewage treatment, the sewage must first be filtered.

[0003] At present, when sewage treatment equipment treats sewage, the filtration process is relatively simple, and then it is sent to other sewage treatment processes. Since general sewage treatment equipment has fewer filtration stages and insufficient filtration, there are more impurities in the sewage, which makes it inconvenient to carry out subsequent treatment of the sewage.

[0004] For example, a multi-stage sewage filtration device disclosed in Chinese patent CN208757114U can perform sewage sedimentation and multi-stage filtration treatment, effectively remove impurities entrained in the sewage, and facilitate other subsequent treatments of the sewage. In addition, the first filter plate and the second filter plate used for filtration are easy to disassemble and install, and are convenient for cleaning or replacement after a period of use, which is convenient for actual use.

[0005] However, if too much impurities accumulate on the filter plate during the filtration process, the filter will be blocked, thus affecting the filtration work.

[0006] For this reason, we urgently need to provide a multi-stage sewage filtration device that is anti-clogging. Utility Model Content

[0007] The utility model aims to provide a sewage multi-stage filtering device to solve the problem in the background art that if too many impurities are accumulated on the filter plate during the filtering process, the filter screen will be blocked, thereby affecting the filtering work.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage sewage filtering device, comprising a filter box and a support seat, the support seat is fixedly connected to the lower end of the filter box, the upper end of the filter box is connected with a box cover, a feed pipe is fixedly connected to the left side of the upper end of the box cover, a discharge pipe is fixedly connected to the middle position below the right end of the inside of the filter box, a valve is arranged inside the discharge pipe, and a filtering mechanism is connected to the inner and outer ends of the filter box, the filtering mechanism comprises a filtering unit and a disassembly unit, the filtering unit is arranged at the inner and outer ends of the filter box, and the disassembly unit is arranged at the outer ends of the filter box and the box cover.

[0009] The filter unit includes a motor, a rotating rod, a cylinder, a scraper, a first filter screen, a second filter screen, a third filter screen and a rectangular frame. The motor is fixedly connected to the upper middle position of the box cover, the rotating rod is fixedly connected to the lower end of the output shaft of the motor, the cylinder is fixedly connected to the outer side of the rotating rod at an equal distance, the scraper is fixedly connected to the upper left and right ends of the outer side of the cylinder, the first filter screen is connected to the outer end of the cylinder, the second filter screen is connected to the outer end of the cylinder, the third filter screen is connected to the outer end of the cylinder, and the rectangular frame is fixedly connected to the outer ends of the first filter screen, the second filter screen and the third filter screen.

[0010] A further improvement is that an annular groove is provided below the outer end of the cylinder, and a rotating hole is provided in the middle position inside the first filter screen, the second filter screen and the third filter screen, the inner side of the rotating hole is rotatably connected to the inner side of the annular groove, and the outer side of the rectangular frame is slidably connected to the inner side of the filter box, so that when the motor is started and its output shaft rotates to drive the rotating rod and the cylinder to rotate together, the rectangular frame cannot rotate inside the filter box, thereby causing the cylinder and the third filter screen to rotate relative to each other.

[0011] A further improvement is that the outer lower end of the scraper is slidably connected to the upper sides of the first filter, the second filter and the third filter, so that when the cylinder rotates to drive the scraper located on the first filter, the second filter and the third filter to rotate, the sewage on the first filter, the second filter and the third filter can be stirred.

[0012] A further improvement is that a rubber pad is fixedly connected to the outer side of the rectangular frame, so that after the rectangular frame is slid to the inner side of the filter box, the rubber pad on the outer side of the rectangular frame contacts the inner side of the filter box, so that the contact between the rectangular frame and the inner side of the filter box can be kept sealed.

[0013] A further improvement is that the disassembly unit includes a fixing plate, a spring, an insertion rod and a fixing frame, the fixing plate is fixedly connected to the middle position of the left and right sides of the box cover, the spring is connected to the inner lower end of the fixing plate, the insertion rod is fixedly connected to the front end of the spring, and the fixing frame is fixedly connected to the middle position of the left and right upper ends of the filter box.

[0014] A further improvement is that a circular groove begins at the front of the inner lower end of the fixed plate, the rear end of the spring is fixedly connected to the inner rear end of the circular groove, and the outer side of the insertion rod is slidably connected to the inner side of the circular groove, so that when the spring bounces, the insertion rod can be driven to slide along the inner side of the circular groove.

[0015] A further improvement is that a socket is provided in the middle of the inner front end of the fixed frame, the outer side of the lower end of the fixed plate is slidably connected to the inner side of the fixed frame, and the outer side of the front end of the plug rod is plugged into the inner side of the socket, so that the fixed plate can be fixed to the inner side of the fixed frame by moving the front end of the plug rod forward into the socket at the front end of the fixed frame.

[0016] In summary, the present application discloses a sewage multi-stage filtration device.

[0017] According to the technical solution, when sewage is poured from the feed pipe into the filter box and filtered through the first filter, the second filter and the third filter, the motor is turned on and its output shaft rotates to drive the cylinder to rotate, so that the scraper is located on the first filter, the second filter and the third filter and rotates, which can stir the impurities in the filtered flow, so that the filter holes will not be blocked by the impurities in the filtered flow during the filtration process.

[0018] Furthermore, by pushing the insertion rod backward so that it moves to the inner side of the circular groove, the box cover is pulled up, and at the same time the fixing plate is moved out of the inner side of the fixing frame, the first filter screen, the second filter screen and the third filter screen in the filter box are pulled out of the filter box together, and the impurities on the first filter screen, the second filter screen and the third filter screen can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the filter box of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the third filter screen of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the disassembly unit of the utility model.

[0023] In the figure: 1, filter box; 2, support base; 3, box cover; 4, feed pipe; 5, discharge pipe; 601, motor; 602, rotating rod; 603, cylinder; 604, scraper; 605, first filter screen; 606, second filter screen; 607, third filter screen; 608, rectangular frame; 701, fixing plate; 702, spring; 703, plug rod; 704, fixing frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution: Embodiment 1:

[0026] A sewage multi-stage filtering device comprises a filter box 1 and a support base 2, the support base 2 is fixedly connected to the lower end of the filter box 1, the upper end of the filter box 1 is connected to a box cover 3, a feed pipe 4 is fixedly connected to the left side of the upper end of the box cover 3, a discharge pipe 5 is fixedly connected to the middle position below the right end of the inside of the filter box 1, a valve is arranged inside the discharge pipe 5, the inner and outer ends of the filter box 1 are connected to a filtering mechanism, the filtering mechanism comprises a filtering unit and a disassembly unit, the filtering unit is arranged at the inner and outer ends of the filter box 1, and the disassembly unit is arranged at the outer ends of the filter box 1 and the box cover 3.

[0027] The filtering unit includes a motor 601, a rotating rod 602, a cylinder 603, a scraper 604, a first filter screen 605, a second filter screen 606, a third filter screen 607 and a rectangular frame 608. The motor 601 is fixedly connected to the middle position of the upper side of the box cover 3, the rotating rod 602 is fixedly connected to the lower end of the output shaft of the motor 601, the cylinder 603 is fixedly connected to the outer side of the rotating rod 602 at an equal distance, the scraper 604 is fixedly connected to the upper left and right ends of the outer side of the cylinder 603, the first filter screen 605 is connected to the outer end of the cylinder 603, the second filter screen 606 is connected to the outer end of the cylinder 603, the third filter screen 607 is connected to the outer end of the cylinder 603, and the rectangular frame 608 is fixedly connected to the outer ends of the first filter screen 605, the second filter screen 606 and the third filter screen 607. An annular groove is provided at the lower outer end of the cylinder 603, and a rotating hole is provided at the middle position of the first filter screen 605, the second filter screen 606 and the third filter screen 607. The inner side of the rotating hole is rotatably connected to the inner side of the annular groove, and the outer side of the rectangular frame 608 is slidably connected to the inner side of the filter box 1. Thus, when the motor 601 is started and its output shaft rotates to drive the rotating rod 602 and the cylinder 603 to rotate together, since the rectangular frame 608 cannot rotate inside the filter box 1, the cylinder 603 and the third filter screen 607 can rotate relative to each other, so that the cylinder 603 can rotate in the rotating hole.

[0028] The lower end of the outer side of the scraper 604 is slidably connected to the upper side of the first filter screen 605, the second filter screen 606 and the third filter screen 607. Therefore, when the cylinder 603 rotates and drives the scraper 604 located on the first filter screen 605, the second filter screen 606 and the third filter screen 607 to rotate, the sewage on the first filter screen 605, the second filter screen 606 and the third filter screen 607 can be stirred, so that the filter holes of the first filter screen 605, the second filter screen 606 and the third filter screen 607 will not be blocked by the impurities filtered out during filtering.

[0029] A rubber pad is fixedly connected to the outside of the rectangular frame 608. After the rectangular frame 608 is slid to the inside of the filter box 1, the rubber pad on the outside of the rectangular frame 608 contacts the inside of the filter box 1, so that the contact between the rectangular frame 608 and the inside of the filter box 1 can be kept sealed, so that the sewage entering the filter box 1 will not leak from the contact between the rectangular frame 608 and the filter box 1, but will be completely filtered by the first filter screen 605, the second filter screen 606 and the third filter screen 607. Embodiment 2:

[0030] On the basis of the first embodiment: the disassembly unit includes a fixing plate 701, a spring 702, a plug rod 703 and a fixing frame 704, the fixing plate 701 is fixedly connected to the middle position of the left and right sides of the box cover 3, the spring 702 is connected to the inner lower end of the fixing plate 701, the plug rod 703 is fixedly connected to the front end of the spring 702, a circular groove begins to be formed in front of the inner lower end of the fixing plate 701, the rear end of the spring 702 is fixedly connected to the inner rear end of the circular groove, and the outer side of the plug rod 703 is slidably connected to the inner side of the circular groove. Therefore, when the spring 702 bounces, it can drive the plug rod 703 to slide along the inner side of the circular groove, thereby limiting the movement of the plug rod 703.

[0031] The fixing frame 704 is fixedly connected to the middle position of the upper ends of the left and right sides of the filter box 1. A plug hole is provided in the middle position of the front end of the fixing frame 704. The outer side of the lower end of the fixing plate 701 is slidably connected to the inner side of the fixing frame 704, and the outer side of the front end of the plug rod 703 is plugged into the inner side of the plug hole. Therefore, by sliding the lower end of the fixing plate 701 to the inner side of the fixing frame 704, and then pushing the plug rod 703 forward through the rebound of the spring 702, so that the front end of the plug rod 703 moves forward to the plug hole at the front end of the fixing frame 704, the fixing plate 701 can be fixed to the inner side of the fixing frame 704.

[0032] Working principle: When in use, first turn on the motor 601 and rotate its output shaft to drive the rotating rod 602 to rotate, thereby driving the cylinder 603 and the scraper 604 to rotate together on the first filter screen 605, the second filter screen 606 and the third filter screen 607, and then pour the sewage from the feed pipe 4 into the filter box 1. The sewage is graded and filtered through the first filter screen 605, the second filter screen 606 and the third filter screen 607 to remove impurities entrained in the sewage, and then discharged from the discharge pipe 5 at the lower end.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A sewage multi-stage filtering device, comprising a filter box (1) and a support base (2), wherein the support base (2) is fixedly connected to the lower end of the filter box (1), and is characterized in that: The upper end of the filter box (1) is connected to a box cover (3), a feed pipe (4) is fixedly connected to the left of the upper end of the box cover (3), a discharge pipe (5) is fixedly connected to the middle position below the right end of the inside of the filter box (1), a valve is arranged inside the discharge pipe (5), the inner and outer ends of the filter box (1) are connected to a filter mechanism, the filter mechanism comprises a filter unit and a disassembly unit, the filter unit is arranged at the inner and outer ends of the filter box (1), and the disassembly unit is arranged at the outer ends of the filter box (1) and the box cover (3); The filtering unit comprises a motor (601), a rotating rod (602), a cylinder (603), a scraper (604), a first filter screen (605), a second filter screen (606), a third filter screen (607) and a rectangular frame (608); the motor (601) is fixedly connected to the middle position of the upper side of the box cover (3); the rotating rod (602) is fixedly connected to the lower end of the output shaft of the motor (601); and the cylinder (603) is fixedly connected to the rotating rod (602) at an equal distance. 02), the scraper (604) is fixedly connected to the upper left and right ends of the outer side of the cylinder (603), the first filter screen (605) is connected to the outer end of the cylinder (603), the second filter screen (606) is connected to the outer end of the cylinder (603), the third filter screen (607) is connected to the outer end of the cylinder (603), and the rectangular frame (608) is fixedly connected to the outer ends of the first filter screen (605), the second filter screen (606) and the third filter screen (607).

2. The sewage multi-stage filtration device according to claim 1, characterized in that: An annular groove is provided at the lower portion of the outer end of the cylinder (603); a rotating hole is provided at the middle position inside the first filter screen (605), the second filter screen (606) and the third filter screen (607); the inner side of the rotating hole is rotatably connected to the inner side of the annular groove; and the outer side of the rectangular frame (608) is slidably connected to the inner side of the filter box (1).

3. The sewage multi-stage filtration device according to claim 1, characterized in that: The outer lower end of the scraper (604) is slidably connected to the upper sides of the first filter screen (605), the second filter screen (606) and the third filter screen (607).

4. The sewage multi-stage filtration device according to claim 1, characterized in that: A rubber pad is fixedly connected to the outer side of the rectangular frame (608).

5. The sewage multi-stage filtration device according to claim 1, characterized in that: The disassembly unit comprises a fixing plate (701), a spring (702), an insertion rod (703) and a fixing frame (704); the fixing plate (701) is fixedly connected to the middle position of the left and right sides of the box cover (3); the spring (702) is connected to the inner lower end of the fixing plate (701); the insertion rod (703) is fixedly connected to the front end of the spring (702); and the fixing frame (704) is fixedly connected to the middle position of the left and right upper ends of the filter box (1).

6. The sewage multi-stage filtration device according to claim 5, characterized in that: A circular groove begins at the front of the lower inner end of the fixing plate (701), the rear end of the spring (702) is fixedly connected to the inner rear end of the circular groove, and the outer side of the insertion rod (703) is slidably connected to the inner side of the circular groove.

7. The sewage multi-stage filtration device according to claim 5, characterized in that: A plug hole is provided in the middle of the front end of the fixing frame (704); the outer side of the lower end of the fixing plate (701) is slidably connected to the inner side of the fixing frame (704); and the outer side of the front end of the plug rod (703) is plugged into the inner side of the plug hole.

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