Grid for sewage treatment

Abstract

The utility model discloses a grid for sewage treatment, which comprises a drainage ditch, the upper end of the drainage ditch is provided with a filtering mechanism for coarsely filtering sewage, the filtering mechanism comprises a first mounting rack, a transmission rod, a fixed frame, a filtering bin, a filtering grid and a liquid inlet pipe, and the first mounting rack is fixedly arranged on one side of the upper end of the drainage ditch. A transmission rod is movably arranged at the upper end of the first mounting frame through a bearing, a fixing frame is fixedly arranged at one end of the transmission rod, a plurality of filtering bins are uniformly and fixedly arranged on the periphery of the outer side surface of the fixing frame, and filtering grids are fixedly arranged in the filtering bins. According to the utility model, the use effect is good, the plurality of rotatable grids are used for filtering sewage respectively, and when the grids are blocked and need to be cleaned or detached and replaced, other grids are used for replacing the grids to work, so that the treatment efficiency of the whole sewage system cannot be influenced, and the use effect of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a bar screen used for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of ordinary people's daily lives. In existing wastewater treatment methods, screens are used to filter the wastewater first. However, in current technology, when the screens become clogged, precisely sized debris can get stuck on their surface, requiring cleaning. This cleaning process requires the entire equipment to be shut down while the screens are being cleaned, and it is quite cumbersome. Therefore, an improved screen for wastewater treatment is needed to address this problem. Utility Model Content

[0003] The purpose of this invention is to provide a bar screen for wastewater treatment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bar for sewage treatment, comprising a drainage ditch, wherein a filtration mechanism for coarse filtration of sewage is provided at the upper end of the drainage ditch, the filtration mechanism comprising a first mounting frame, a transmission rod, a fixed frame, a filter chamber, a filter bar, and an inlet pipe, wherein the first mounting frame is fixedly provided on one side of the upper end of the drainage ditch, and a transmission rod is movably provided on the upper end of the first mounting frame via a bearing, wherein a fixed frame is fixedly provided at one end of the transmission rod, wherein a plurality of filter chambers are uniformly fixedly provided around the outer surface of the fixed frame, wherein a filter bar is fixedly provided inside the filter chamber, and an inlet pipe is provided on one side of the fixed frame.

[0005] Preferably, a connecting flange is fixedly provided at one end of the inlet pipe. The inlet pipe and the sewage pipe can be easily connected through the connecting flange. Then, the sewage can enter the filter chamber through the inlet pipe and undergo coarse filtration through the filter grid. After that, the sewage can flow into the drainage ditch to enter the next treatment process.

[0006] Preferably, a drain trough is provided at the upper end of the fixed frame. The drain trough can conveniently and automatically discharge the impurities accumulated inside the filter chamber to the outside of the device. During discharge, as the filter chamber and filter grid rotate and switch, the filter grid that rotates to the upper end of the device will automatically fall into the drain trough under the action of gravity. Then, the impurities are discharged to the outside of the device by the inclined drain trough.

[0007] Preferably, baffles are fixedly installed on both sides of the upper end of the filter chamber. The baffles can increase the falling angle of impurities inside the filter chamber, preventing impurities inside the filter chamber from sliding down and falling into the drain tank when the filter chamber is rotated and tilted slightly.

[0008] Preferably, a second mounting bracket is fixedly installed on one side of the first mounting bracket at the upper end of the drainage ditch, and a supporting roller is movably installed on the upper end of the second mounting bracket via a rotating shaft. A fixing ring is fixedly installed on the outer surface of the fixed frame. The stability of the filter frame can be further improved by the supporting roller and the fixing ring.

[0009] Preferably, the support roller is in contact with the outer surface of the fixing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model uses a transmission rod to drive the entire fixed frame to rotate, thereby switching the filter screen. This allows the bottom filter screen to rotate to the side, quickly completing the filter screen switching and using a new screen to replace the old one. This does not affect the overall wastewater treatment efficiency and improves the device's performance. Since the old filter screen is no longer submerged in the wastewater but is on the side of the fixed frame, workers can easily remove impurities stuck in the filter screen, making filter screen cleaning convenient and easy.

[0012] 2. When this utility model is in use, as the filter chamber and filter grid rotate and switch, the filter grid that rotates to the top of the device will automatically fall into the drain trough under the action of gravity. Then, the impurities are discharged to the outside of the device by the inclined drain trough, which makes it easier to clean the impurities remaining in the filter chamber. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a bar screen for wastewater treatment according to the present invention;

[0014] Figure 2 This is a cross-sectional view of a bar screen for wastewater treatment according to the present invention;

[0015] Figure 3 This is a side view of a bar screen for wastewater treatment according to the present invention.

[0016] In the diagram: 1. Drainage ditch; 2. First mounting bracket; 3. Transmission rod; 4. Fixed frame; 5. Filter chamber; 6. Filter grid; 7. Liquid inlet pipe; 8. Connecting flange; 9. Sewage trough; 10. Baffle; 11. Second mounting bracket; 12. Support roller; 13. Fixing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a bar for sewage treatment, including a drainage ditch 1. The upper end of the drainage ditch 1 is provided with a filtration mechanism for coarse filtration of sewage. The filtration mechanism includes a first mounting frame 2, a transmission rod 3, a fixed frame 4, a filter chamber 5, a filter bar 6, and an inlet pipe 7. The first mounting frame 2 is fixedly installed on one side of the upper end of the drainage ditch 1. The transmission rod 3 is movably installed on the upper end of the first mounting frame 2 through a bearing. One end of the transmission rod 3 is fixedly installed with a fixed frame 4. Several filter chambers 5 are evenly fixed around the outer surface of the fixed frame 4. The filter bar 6 is fixedly installed inside the filter chamber 5. The inlet pipe 7 is provided on one side of the fixed frame 4.

[0019] One end of the inlet pipe 7 is fixedly provided with a connecting flange 8. The inlet pipe 7 and the sewage pipe can be easily connected through the connecting flange 8. Then, the sewage can enter the filter chamber 5 through the inlet pipe 7 and be coarsely filtered by the filter grid 6. The sewage can then flow into the drainage ditch 1 to enter the next treatment process.

[0020] The upper part of the fixed frame 4 is provided with a drain trough 9. The drain trough 9 can conveniently and automatically discharge the impurities accumulated inside the filter chamber 5 to the outside of the device. When the filter chamber 5 and the filter grid 6 are rotated and switched, the filter grid 6 that rotates to the upper part of the device will automatically fall into the drain trough 9 under the action of gravity. Then, the impurities are discharged to the outside of the device by the inclined drain trough 9.

[0021] Both sides of the upper end of the filter chamber 5 are fixedly provided with baffles 10. The baffles 10 can increase the falling angle of impurities inside the filter chamber 5, and prevent the impurities inside the filter chamber 5 from sliding down and falling into the drain tank 9 when the filter chamber 5 is rotated and tilted slightly.

[0022] The upper end of the drainage ditch 1 is fixedly provided with a second mounting frame 11 on one side of the first mounting frame 2. The upper end of the second mounting frame 11 is movably provided with a support roller 12 via a rotating shaft. The outer surface of the fixed frame 4 is fixedly provided with a fixing ring 13. The stability of the filter frame can be further improved by the support roller 12 and the fixing ring 13.

[0023] The support roller 12 is in contact with the outer surface of the fixing ring.

[0024] Working principle: To use this device, the transmission rod 3, reducer, and motor need to be connected first. The reducer can be a worm gear reducer. Then, the motor, in conjunction with the reducer, can drive the transmission rod 3 and the entire fixed frame 4 to rotate, so as to switch the filter screen 6.

[0025] During filtration, the inlet pipe 7 and the sewage pipe are connected by the connecting flange 8. The sewage can then enter the filter chamber 5 through the inlet pipe 7 and undergo coarse filtration through the filter grid 6. After that, the sewage can flow into the drainage ditch 1 to enter the next treatment process.

[0026] As the bottom filter screen 6 of the device gradually becomes clogged, a large amount of impurities accumulate inside the filter chamber 5, and the gaps in the filter screen 6 may even become stuck. At this point, the transmission rod 3 can drive the entire fixed frame 4 to rotate, thereby switching the filter screen 6 so that the bottom filter screen 6 rotates to the side. This allows for a quick switch of the filter screen 6, using a new screen to replace the old one, without affecting the overall wastewater treatment efficiency, thus improving the device's performance. Since the old filter screen 6 is no longer submerged in the wastewater but is on the side of the fixed frame 4, the staff can easily remove the impurities stuck in the filter screen 6, making it convenient to clean the filter screen 6.

[0027] When this device is in use, as the filter chamber 5 and the filter grid 6 rotate and switch, the filter grid 6 that rotates to the top of the device will automatically fall into the drain trough 9 under the action of gravity. Then, the impurities are discharged to the outside of the device by the inclined drain trough 9, which makes it easier to clean the impurities remaining in the filter chamber 5.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grid for sewage treatment, comprising a drain ditch (1), characterized in that: The gutter (1) upper end is provided with a filter mechanism for rough filtration of sewage, the filter mechanism comprises a first mounting frame (2), a transmission rod (3), a fixed frame (4), a filter bin (5), a filter grid (6), a liquid inlet pipe (7), one side of the upper end of the gutter (1) is fixedly provided with the first mounting frame (2), the upper end of the first mounting frame (2) is movably provided with the transmission rod (3) through a bearing, one end of the transmission rod (3) is fixedly provided with the fixed frame (4), a plurality of filter bins (5) are uniformly fixedly arranged on the outer side surface of the fixed frame (4), the filter grid (6) is fixedly arranged in the filter bin (5), the fixed frame (4) is provided with the liquid inlet pipe (7) on one side.

2. A grille for sewage treatment according to claim 1, characterised in that: One end of the liquid inlet pipe (7) is fixedly provided with a connecting flange (8).

3. A grille for sewage treatment according to claim 1, wherein: The fixed frame (4) is provided with a sewage discharge groove (9) in the inner upper end.

4. A grille for sewage treatment according to claim 1, wherein: The filter bin (5) is fixedly provided with a baffle (10) on both sides of the inner upper end.

5. A grid for sewage treatment according to claim 1, characterized in that: The upper end of the gutter (1) is fixedly provided with a second mounting frame (11) on one side of the first mounting frame (2), the second mounting frame (11) is movably provided with a supporting roller (12) on the upper end through a rotating shaft, and the outer side surface of the fixed frame (4) is fixedly provided with a fixed ring (13).

6. A grille for sewage treatment according to claim 5, wherein: The supporting roller (12) and the fixed ring (13) are mutually attached to the outer side surface.

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