Grid deslagging device for sewage pretreatment

Abstract

The utility model discloses a grid deslagging device for sewage pretreatment, which comprises a bottom plate, side plates are symmetrically mounted at the top end of the bottom plate, a sewage filtering component is mounted between the two side plates, a water inlet control component is arranged on one side of the sewage filtering component, and an anti-falling component is arranged on the other side of the sewage filtering component. The sewage filtering assembly comprises a rotating shaft arranged between the two side plates, the rotating shaft is rotationally connected with the two side plates, two filtering cambered surfaces are installed on the outer wall of the rotating shaft at equal angles, and the filtering cambered surfaces are arranged to be in an arc shape; in the working process, the two arc-shaped filtering cambered surfaces are installed on the outer side of the rotating shaft at equal angles, when sewage is filtered, impurities are left in grooves of the filtering cambered surfaces, and when the impurities are too many, the rotating shaft rotates to change the positions of the two filtering cambered surfaces, so that the filtering cambered surface above can directly conduct filtering work; the impurity cleaning time is saved and the sewage treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, concretely is a kind of grating slag removal device for sewage pretreatment. BACKGROUND

[0002] According to the patent document with the authorized announcement number "CN112939109B", the invention name "a grating slag removal device for sewage treatment", its specification records: a grating slag removal device for sewage treatment, the water discharged from the water outlet of water supply cover forms a "water knife" at the same time, and the grating cleaner still drives the grating to move circularly, so as to facilitate the "water knife" to flush the grating structure on the grating cleaner without dead angle, so as to facilitate the flushing of stains and residues on the grating of the grating cleaner, in this process, the air supply fan supplies air to the air supply air knife through the air supply telescopic pipe and each air guide soft branch pipe, so as to form a "wind curtain" when the air outlet of the air supply air knife exhausts air, so as to facilitate the blowing of the grating structure on the grating cleaner without dead angle, since the air supply air knife is located obliquely below the water supply cover, therefore, the "wind curtain" is also located obliquely below the "water knife", so as to facilitate the residues and stains on the grating, which are flushed down by the "water knife", to be directly blocked by the "wind curtain", which is conducive to avoiding the residues flushed down by the "water knife" from falling to the bottom side of the grating again, and further facilitating the efficient and dead angle-free automatic flushing and removal of the residues on the grating, while avoiding the residues falling to the bottom side from being lifted by the grating again, but the following defects still exist:

[0003] In the process of cleaning the grating, the sewage treatment work needs to be paused, which reduces the efficiency of sewage. UTILITY MODEL CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a grating slag removal device for sewage pretreatment, which effectively solves the problem that the sewage treatment work needs to be paused in the process of cleaning the grating, which reduces the efficiency of sewage.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a grating slag removal device for sewage pretreatment, comprising a bottom plate, the top end of the bottom plate is symmetrically provided with side plates, a sewage filtering assembly is installed between the two side plates, a water inlet control assembly is arranged on one side of the sewage filtering assembly, and a back-falling prevention assembly is arranged on the other side of the sewage filtering assembly.

[0006] The sewage filtering assembly comprises a rotating shaft arranged between the two side plates, the rotating shaft is rotatably connected with the two side plates, two filtering arc surfaces are equiangularly installed on the outer wall of the rotating shaft, the filtering arc surfaces are arranged in a circular arc shape, and filtering holes are uniformly formed in the filtering arc surfaces; when sewage passes through the lower filtering arc surface, impurities in the sewage are left in the grooves of the filtering arc surfaces.

[0007] Preferably, one end of the rotating shaft is fixedly connected with an output shaft of a driving motor, the driving motor is fixedly installed on the side plate, and the two sides of the rotating shaft are symmetrically provided with clamping grooves.

[0008] Preferably, the water inlet control assembly comprises a fixed horizontal plate fixedly installed between the two side plates, wherein the water flow flows from below the fixed horizontal plate towards the filtering camber, and the inner cavity of the plate box is in communication with the lower portion of the fixed horizontal plate.

[0009] Preferably, a shutter is movably installed in the plate box, the top end of the shutter is fixedly connected with the output end of the two first air cylinders, and the first air cylinders are fixedly installed at the top end of the plate box.

[0010] Preferably, the anti-backfall assembly comprises a movable horizontal plate arranged on the side of the rotating shaft away from the fixed horizontal plate, the movable horizontal plate is fixedly installed with sliding blocks on the side walls close to the two side plates, the sliding blocks are slidingly installed in the sliding grooves, and the sliding grooves are symmetrically arranged on the sides of the two side plates close to each other.

[0011] Preferably, the top end of one of the sliding grooves is provided with a communication groove, the top end of the sliding block on the corresponding side is fixedly installed with a connecting block, the connecting block is slidingly connected with the communication groove, the top end of the connecting block penetrates through the upper portion of the side plate, the top end of the side plate is fixedly installed with a second air cylinder, and the output end of the second air cylinder is fixedly connected with the connecting block.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In work, the outside of the rotating shaft is provided with two arc-shaped filtering cambers at equal angles, when filtering sewage, impurities are left in the grooves of the filtering cambers, when there are more impurities, the rotating shaft is rotated to exchange the positions of the two filtering cambers, so that the upper filtering camber can directly perform filtering work, the impurity cleaning time is saved, and the sewage treatment efficiency is improved.

[0014] In work, the clamping block at one end of the movable horizontal plate is clamped with the clamping groove on the rotating shaft, the filtering camber is clamped and fixed, the filtering stability is improved, the movable horizontal plate is located on one side of the rotating shaft, impurities can be prevented from falling back into the sewage, and the sewage treatment effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0016] In the drawings:

[0017] Figure 1 It is a structure schematic view of a grating slag removal device for sewage pretreatment.

[0018] Figure 2 This is a schematic diagram of the rotating shaft structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the wastewater filtration component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the water inlet control component of this utility model;

[0021] Figure 5 This is a schematic diagram of the side plate structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the anti-fall-back component structure of this utility model.

[0023] In the diagram: 1. Base plate; 2. Side plate; 3. Wastewater filtration assembly; 301. Rotating shaft; 302. Filter arc surface; 303. Filter hole; 304. Drive motor; 305. Slot; 4. Water inlet control assembly; 401. Fixed horizontal plate; 402. Plate box; 403. Gate; 404. First cylinder; 5. Anti-fall-back assembly; 501. Slide groove; 502. Movable horizontal plate; 503. Slider; 504. Connecting groove; 505. Connecting block; 506. Second cylinder; 507. Slot. Detailed Implementation

[0024] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1, by Figures 1-6 The present invention relates to a screen slag removal device for sewage pretreatment, comprising a base plate 1, side plates 2 symmetrically installed on the top of the base plate 1, a sewage filter assembly 3 installed between the two side plates 2, an inlet control assembly 4 provided on one side of the sewage filter assembly 3, and an anti-fall-back assembly 5 provided on the other side of the sewage filter assembly 3.

[0026] The sewage filtering assembly 3 comprises a rotating shaft 301 arranged between the two side plates 2, the rotating shaft 301 is rotationally connected with the two side plates 2, two filtering arc surfaces 302 are equiangularly arranged on the outer wall of the rotating shaft 301, the filtering arc surfaces 302 are arranged in a circular arc shape, filtering holes 303 are uniformly arranged on the filtering arc surfaces 302, when the sewage passes through the lower filtering arc surface 302, the impurities in the sewage are left in the grooves of the filtering arc surfaces 302, one end of the rotating shaft 301 is fixedly connected with the output shaft of a driving motor 304, the driving motor 304 is fixedly arranged on the side plate 2, clamping grooves 305 are symmetrically arranged on the two sides of the rotating shaft 301, two arc-shaped filtering arc surfaces 302 are equiangularly arranged on the outer side of the rotating shaft 301, when the sewage is filtered, the impurities are left in the grooves of the filtering arc surfaces 302, when the impurities are relatively more, the rotating shaft 301 is rotated to exchange the positions of the two filtering arc surfaces 302, so that the upper filtering arc surface 302 can directly perform the filtering work, the impurity cleaning time is saved, and the sewage treatment efficiency is improved.

[0027] The water inlet control assembly 4 comprises a fixed horizontal plate 401 fixedly arranged between the two side plates 2, water flows from the lower side of the fixed horizontal plate 401 towards the filtering arc surfaces 302, a plate box 402 is in communication with the lower side of the fixed horizontal plate 401, a gate plate 403 is movably arranged in the inner cavity of the plate box 402, the top end of the gate plate 403 is fixedly connected with the output ends of two first air cylinders 404, and the first air cylinders 404 are fixedly arranged at the top end of the plate box 402.

[0028] The anti-backfall assembly 5 comprises a movable horizontal plate 502 arranged on the side of the rotating shaft 301 away from the fixed horizontal plate 401, sliding blocks 503 are fixedly arranged on the side walls of the movable horizontal plate 502 close to the two side plates 2, the sliding blocks 503 are slidingly arranged in the sliding grooves 501, the sliding grooves 501 are symmetrically arranged on the sides of the two side plates 2 close to each other, a communication groove 504 is arranged at the top end of one of the sliding grooves 501, a connecting block 505 is fixedly arranged at the top end of the sliding block 503 on one side in correspondence, the connecting block 505 is slidingly connected with the communication groove 504, the top end of the connecting block 505 penetrates through to the upper side of the side plate 2, a second air cylinder 506 is fixedly arranged at the top end of the side plate 2, the output end of the second air cylinder 506 is fixedly connected with the connecting block 505, the clamping block 507 at one end of the movable horizontal plate 502 is clamped with the clamping groove 305 on the rotating shaft 301, the filtering arc surfaces 302 are clamped and fixed, the filtering stability is improved, meanwhile, the movable horizontal plate 502 is arranged on one side of the rotating shaft 301, so that the impurities can be prevented from falling back into the sewage, and the sewage treatment effect is ensured.

[0029] Working principle: when working, firstly one of the filter arc surface 302 is located below the rotating shaft 301, sewage moves from the fixed horizontal plate 401 to the side of the filter arc surface 302, after filtering through the filter hole 303, the impurities filtered out are left in the groove of the filter arc surface 302, when the groove of the filter arc surface 302 contains more impurities, the output end of the first cylinder 404 is extended to push the gate plate 403 to move downwards to close the sewage channel, then the second cylinder 506 is opened to make the movable horizontal plate 502 move to the side of the rotating shaft 301, then the driving motor 304 is opened to make the rotating shaft 301 rotate to exchange the positions of the two filter arc surfaces 302, saving the cleaning time of impurities and improving the sewage treatment efficiency;

[0030] When the filter arc surface 302 containing impurities rotates to the upper side of the rotating shaft 301, the movable horizontal plate 502 moves to the side of the rotating shaft 301, at this time, the groove of the filter arc surface 302 faces the movable horizontal plate 502, at this time, the workers clean the impurities in the groove, and the movable horizontal plate 502 can prevent the impurities from falling into the sewage again, and the clamping block 507 at the end of the movable horizontal plate 502 is clamped with the clamping groove 305 on the rotating shaft 301 to fix the filter arc surface 302.

Claims

1. A grid slagging device for sewage pretreatment, comprising a bottom plate (1), characterized in that: The top end of the bottom plate (1) is symmetrically provided with side plates (2), a sewage filtering assembly (3) is arranged between the two side plates (2), one side of the sewage filtering assembly (3) is provided with a water inlet control assembly (4), and the other side of the sewage filtering assembly (3) is provided with an anti-backfall assembly (5). The sewage filtering assembly (3) comprises a rotating shaft (301) arranged between the two side plates (2), the rotating shaft (301) is rotatably connected with the two side plates (2), two filtering arc surfaces (302) are symmetrically arranged on the outer wall of the rotating shaft (301), the filtering arc surfaces (302) are arranged in a circular arc shape, and filtering holes (303) are uniformly arranged on the filtering arc surfaces (302); when sewage passes through the lower filtering arc surface (302), impurities in the sewage are left in the groove of the filtering arc surface (302).

2. The gridrake device for sewage pretreatment according to claim 1, characterized in that: One end of the rotating shaft (301) is fixedly connected with the output shaft of a driving motor (304), the driving motor (304) is fixedly arranged on the side plate (2), and clamping grooves (305) are symmetrically arranged on the two sides of the rotating shaft (301).

3. The gridrake device for sewage pretreatment according to claim 1, characterized in that: The water flow flows from below the fixed horizontal plate (401) to the filtering arc surfaces (302), and the inner cavity of the plate box (402) is in communication with the lower side of the fixed horizontal plate (401).

4. The gridrake device for sewage pretreatment according to claim 3, characterized in that: The inner cavity of the plate box (402) is movably provided with a gate plate (403), the top end of the gate plate (403) is fixedly connected with the output ends of two first air cylinders (404), and the first air cylinders (404) are fixedly arranged on the top end of the plate box (402).

5. The gridrake device for sewage pretreatment according to claim 3, characterized in that: The anti-backfall assembly (5) comprises a movable horizontal plate (502) arranged on the side of the rotating shaft (301) away from the fixed horizontal plate (401), the movable horizontal plate (502) is fixedly arranged on the side wall close to the two side plates (2), the movable horizontal plate (502) is slidably arranged in the sliding groove (501), and the sliding groove (501) is symmetrically arranged on the side of the two side plates (2) close to each other.

6. The gridrake device for sewage pretreatment according to claim 5, characterized in that: The top end of one of the sliding grooves (501) is provided with a communication groove (504), the top end of the sliding block (503) on the corresponding side is fixedly provided with a connecting block (505), the connecting block (505) is slidably connected with the communication groove (504), the top end of the connecting block (505) penetrates through the upper side of the side plate (2), the top end of the side plate (2) is fixedly provided with a second air cylinder (506), and the output end of the second air cylinder (506) is fixedly connected with the connecting block (505).

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