A grating device for a sludge return channel

Abstract

The utility model discloses a grating device for sludge backflow tank, including sludge backflow tank, the both sides bank of sludge backflow tank is provided with first bearing seat and second bearing seat respectively, and is provided with the pivot between first bearing seat and second bearing seat, first grating and second grating are provided with on the pivot interval 90 DEG, for blocking the garbage in sludge, the pivot is provided with the carousel through first bearing seat, and the position of carousel corresponds first grating and second grating and is all provided with fixed hole. The utility model discloses through setting up two grating on sludge backflow tank, when long -time use needs cleaning, can quickly with another grating card into sludge backflow tank and block the garbage in sludge, and this kind of mode is simple and quick, does not influence the blocking effect of garbage in sludge.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a bar screen device for a sludge return trough. Background Technology

[0002] Domestic sewage treatment generates a large amount of sludge. Sludge return tanks are installed next to each sewage treatment pond to return sewage containing sludge to sedimentation tanks for settling. The settled sludge is then dewatered and treated for reuse. However, some unfiltered debris remains in the sludge. Since existing sludge return tanks lack filtration devices, this debris flows back into the sludge, hindering subsequent sludge treatment. Utility Model Content

[0003] To address the problem that existing sludge return tanks lack filtration devices to block waste, thus affecting subsequent harmless sludge treatment, this invention provides a bar screen device for sludge return tanks.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A bar screen device for a sludge return channel includes a sludge return channel. A first bearing seat and a second bearing seat are respectively provided on both sides of the sludge return channel, and a rotating shaft is provided between the first and second bearing seats. A first bar screen and a second bar screen are provided on the rotating shaft at 90° intervals to block waste in the sludge. A turntable is provided through the first bearing seat on the rotating shaft, and fixing holes are provided on the turntable corresponding to the positions of the first and second bar screens. A nut seat is provided on one side of the sludge return channel bank of the turntable, and a screw is screwed onto the nut seat. A knob is provided at the end of the screw screen away from the turntable for rotating the screw to insert it into the fixing hole to fix the turntable.

[0006] Preferably, a slide rail is provided on the bank of the sludge return channel on one side of the second bearing seat, and a forked baffle is slidably connected to the slide rail by a slider to lock the first or second grid and fix it.

[0007] Furthermore, a sleeve is provided on the side of the slider away from the bifurcated baffle, and a pin is inserted into the sleeve. The slide rail is provided with a hole that cooperates with the pin to fix the slider and prevent it from sliding.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting two grids on the sludge return trough, when one grid needs to be cleaned after long-term use, the other grid can be quickly inserted into the sludge return trough to block the garbage in the sludge. This method is simple and quick to operate and does not affect the blocking effect on the garbage in the sludge. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0010] Figure 2 This is a schematic diagram of the left-side structure of an embodiment of the present utility model;

[0011] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of section II;

[0012] Figure 4 for Figure 1 Enlarged diagram of A in the middle;

[0013] Figure 5 for Figure 1 Enlarged diagram of B in the diagram;

[0014] Figure 6 for Figure 2 Enlarged diagram of C in the middle;

[0015] Figure 7 for Figure 3 An enlarged schematic diagram of D in the diagram.

[0016] In the diagram: 1. Sludge return trough, 2. First bearing seat, 3. Second bearing seat, 4. Rotating shaft, 5. Turntable, 6. First grid, 7. Second grid, 8. Fixing hole, 9. Nut seat, 10. Screw, 11. Knob, 12. Slide rail, 13. Slider, 14. Forked baffle, 15. Sleeve, 16. Pin, 17. Socket. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1 to 7As shown, this embodiment of the utility model includes a sludge return channel 1. A first bearing seat 2 and a second bearing seat 3 are respectively provided on both sides of the sludge return channel 1, and a rotating shaft 4 is provided between the first bearing seat 2 and the second bearing seat 3. A first grid 6 and a second grid 7 are provided on the rotating shaft 4 at 90° intervals to block garbage in the sludge. A turntable 5 is provided through the rotating shaft 4 and the first bearing seat 2. Fixing holes 8 are provided on the turntable 5 at positions corresponding to the first grid 6 and the second grid 7. A nut seat 9 is provided on the bank of the sludge return channel 1 on one side of the turntable 5. A screw 10 is screwed onto the nut seat 9. A knob 11 is provided at the end of the screw 10 away from the turntable 5 to rotate the screw 10 to insert it into the fixing hole 8 to fix the turntable 5.

[0020] like Figure 1-3 As shown, the first grid 6 is located in the sludge return trough 1 at this time, which can block the garbage in the sludge and prevent the garbage from causing problems for subsequent treatment after being returned with the sludge. Figure 4 As shown, at this time, the screw 10 is inserted into the fixing hole 8 on the turntable 5 corresponding to the first grid 6. The turntable 5 cannot rotate, that is, the rotating shaft 4 and the first grid 6 and the second grid 7 on it cannot rotate. This avoids the first grid 6 from rotating and failing during the process of blocking garbage.

[0021] When excessive debris accumulates on the first screen 6, affecting sludge return, the screw 10 is disengaged from the fixing hole 8 by turning the knob 11. Then, the turntable 5 is rotated 90°, causing the first screen 6 to disengage from the sludge return trough 1, while the second screen 7 is inserted into the sludge return trough 1. The screw 10 is then inserted into the corresponding fixing hole 8 by turning the knob 11 again, fixing the turntable 5 in place. Workers can then clean the first screen 6 for future use. This method of switching between the first screen 6 and the second screen 7 does not affect the blocking effect on debris in the sludge.

[0022] Preferably, a slide rail 12 is provided on the bank of the sludge return channel 1 on one side of the second bearing seat 3. A forked baffle 14 is slidably connected to the slide rail 12 via a slider 13 to lock the first grid 6 or the second grid 7 and fix them to further enhance the fixing effect. A sleeve 15 is provided on the side of the slider 13 away from the forked baffle 14. A pin 16 is inserted into the sleeve 15. The slide rail 12 is provided with a hole 17 that cooperates with the pin 16 to fix the slider 13 and prevent it from sliding.

[0023] 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 grating device for a sludge return channel, characterized by: The system includes a sludge return channel, on which a first bearing seat and a second bearing seat are respectively provided on both sides. A rotating shaft is provided between the first and second bearing seats. A first grid and a second grid are provided on the rotating shaft at 90° intervals to block garbage in the sludge. A turntable is provided through the first bearing seat on the rotating shaft. Fixing holes are provided on the turntable at positions corresponding to the first and second grids. A nut seat is provided on the bank of the sludge return channel on one side of the turntable. A screw is screwed onto the nut seat. A knob is provided at the end of the screw away from the turntable for rotating the screw to insert it into the fixing hole to fix the turntable.

2. The bar screen device for a sludge return trough according to claim 1, characterized in that: A slide rail is installed on the bank of the sludge return channel on one side of the second bearing seat. A forked baffle is slidably connected to the slide rail via a slider to lock the first or second grid and fix it.

3. A bar screen device for a sludge return trough according to claim 2, characterized in that: A sleeve is provided on the side of the slider away from the bifurcation baffle, and a pin is inserted into the sleeve. The slide rail is provided with a hole that cooperates with the pin to fix the slider and prevent it from sliding.

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