Sewage pretreatment device for municipal water supply and drainage

Abstract

The utility model discloses a sewage pretreatment device for municipal water supply and drainage, and relates to the technical field of sewage pretreatment. The device comprises a box body, a water supply and drainage sewage tank is fixedly connected to the top of the box body, a water inlet pipe is fixedly arranged at the top of the water supply and drainage sewage tank, and water outlet grooves are symmetrically formed in the two sides of the lower portion of the water supply and drainage sewage tank. The rotating disc is manually rotated to drive the screw rod to rotate, the movable frame can be driven to slide along the guide sliding groove, and the two water outlet grooves can be alternately sealed by adjusting the position of the movable frame, so that the first filtering frame and the second filtering frame can be alternately used for filtering impurities in sewage; and impurities in the first filter frame and the second filter frame can be alternately cleaned, so that continuous pretreatment of sewage can be realized, the pretreatment efficiency of the sewage is improved, and the use effect is better by screwing out hexagon socket screws from sealing gaskets, taking out the sealing gaskets from mounting grooves and replacing the aged sealing gaskets.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sewage pretreatment technical field, especially, relate to a sewage pretreatment device for municipal water supply and drainage. BACKGROUND

[0002] For the centralized sewage treatment plant and the decentralized sewage treatment plant of pollution source, the pretreatment mainly includes the treatment facilities such as grid, screen, grit chamber and sand-water separator. In addition to the above general pretreatment, some industrial wastewater needs to be adjusted in water quality and quantity and other special pretreatment before entering the centralized or decentralized sewage treatment plant. Through the search, the patent with the application number 202221099580.0 discloses a sewage pretreatment device for municipal water supply and drainage, which comprises a box body and a cylinder body fixedly connected at the top of the box body, a stirring motor is fixedly arranged at the top of the cylinder body, a rotating shaft is fixedly arranged on the output shaft of the stirring motor, a plurality of stirring blades are fixedly arranged on the outer side of the rotating shaft, a reagent cylinder is fixedly arranged at the top of the cylinder body, and a rotating motor is fixedly arranged at the top of the reagent cylinder.

[0003] However, in the actual use process, the applicant finds that when the impurities in the sewage are filtered through the filter screen belt, part of the impurities in the sewage will be tightly clamped in the filter screen belt, causing the filter screen belt to be blocked, so it is necessary to stop the pretreatment of the sewage from time to time and clean the impurities on the filter screen belt, which will reduce the pretreatment efficiency of the sewage, and the filter screen belt is arranged in the box body, so it is difficult to clean it. In view of this, we propose a sewage pretreatment device for municipal water supply and drainage. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0005] The utility model discloses a sewage pretreatment device for municipal water supply and drainage, which comprises a box body, a water supply and drainage sewage tank is fixedly connected to the top of the box body, a water inlet pipe is fixedly arranged at the top of the water supply and drainage sewage tank, water outlet grooves are symmetrically arranged at the both sides of the lower part of the water supply and drainage sewage tank, a movable frame is slidably connected to the outside of the water supply and drainage sewage tank, sealing pads are fixedly arranged at the both sides in the movable frame, the sealing pads are locked and fixed on the movable frame through the inner hexagon bolts, a connecting support is fixedly arranged at the top of the movable frame on one side, a screw rod is screwed through the connecting support, a rotating disc is fixedly sleeved to one end of the screw rod, and the other end of the screw rod is rotatably connected to the water supply and drainage sewage tank through a bearing, a first filter frame is clamped at the top of the box body on one side of the water supply and drainage sewage tank, a second filter frame is clamped at the top of the box body on the other side of the water supply and drainage sewage tank, a sewage hopper is fixedly arranged at the bottom of the box body, and a water outlet pipe is fixedly arranged at the bottom of the sewage hopper.

[0006] Preferably, the bottom of the movable frame is symmetrically provided with mounting slots on both sides.

[0007] Preferably, one end of the hexagonal bolt penetrates through the side wall of the movable frame and is screwed into the threaded hole provided on the back of the sealing pad.

[0008] Preferably, the front and rear sides of the water supply and drainage sewage tank are symmetrically provided with guide sliding grooves, and the movable frame slides along the guide sliding grooves.

[0009] Preferably, the top of the tank body on both sides of the water supply and drainage sewage tank is symmetrically provided with step grooves, and the first filter frame and the second filter frame are respectively clamped in the two step grooves.

[0010] Preferably, the tank body is fixedly provided with support legs at four corner positions of the bottom.

[0011] The utility model has the following beneficial effects:

[0012] The utility model relates to a sewage pretreatment device for municipal water supply and drainage, which can drive the movable frame to slide along the guide sliding groove by rotating the disc and the screw rod manually, can seal two water outlets alternately by adjusting the position of the movable frame, can filter impurities in sewage alternately by using the first filter frame and the second filter frame, and can clean the impurities in the first filter frame and the second filter frame alternately, so that the continuous pretreatment of sewage can be realized, the pretreatment efficiency of sewage is improved, the sealing pad can be taken out from the mounting slot by rotating the hexagonal bolt out of the sealing pad, the aging sealing pad can be replaced, and the use effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Fig. 1 It is an external structure schematic view of the utility model sewage pretreatment device for municipal water supply and drainage.

[0015] Fig. 2 It is an internal structure schematic view of the utility model sewage pretreatment device for municipal water supply and drainage.

[0016] Fig. 3 It is an explosion view of the movable frame and the sealing pad in the utility model sewage pretreatment device for municipal water supply and drainage.

[0017] The components represented by the reference numerals in the drawings are listed as follows:

[0018] 1. box; 11, step groove; 12, sewage bucket; 121, water outlet pipe; 13, support leg; 2, water supply and drainage sewage tank; 21, water inlet pipe; 22, water outlet groove; 3, movable frame; 31, mounting groove; 32, connecting support; 4, first filter frame; 5, second filter frame; 6, sealing gasket; 7, screw rod; 71, rotating disc; 8, inner hexagonal bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1-3 The present application provides a technical solution:

[0021] The utility model provides a kind of municipal water supply and drainage sewage pretreatment device, including box 1, the top of box 1 is fixedly connected with water supply and drainage sewage tank 2, the top of water supply and drainage sewage tank 2 is fixedly provided with inlet pipe 21, the lower portion of water supply and drainage sewage tank 2 both sides symmetry is equipped with water outlet groove 22, the outside of water supply and drainage sewage tank 2 is slidably connected with movable frame 3, the front and rear both sides of water supply and drainage sewage tank 2 symmetry is equipped with guide slide groove, movable frame 3 is along guide slide groove sliding, the both sides symmetry of movable frame 3 inside is fixed with sealing pad 6, the top of one side movable frame 3 is fixedly provided with connecting support 32, threaded penetration of connecting support 32 is equipped with screw rod 7, one end of screw rod 7 is fixedly connected with rotating disc 71, and the other end of screw rod 7 is rotatably connected on water supply and drainage sewage tank 2 by bearing, the top of the box 1 of one side of water supply and drainage sewage tank 2 is clamped with first filter frame 4, the top of the box 1 of the other side of water supply and drainage sewage tank 2 is clamped with second filter frame 5, by manually rotating rotating disc 71, screw rod 7 is rotated, can drive movable frame 3 along guide slide groove sliding, by adjusting the position of movable frame 3, can alternately seal two water outlet grooves 22, to alternately use first filter frame 4 and second filter frame 5 to filter the impurities in sewage, and can alternately clean the impurities in first filter frame 4 and second filter frame 5, to realize the continuous pretreatment of sewage, improve the pretreatment efficiency of sewage, the top of the box 1 of both sides of water supply and drainage sewage tank 2 is equipped with step groove 11, first filter frame 4 and second filter frame 5 are clamped in two step grooves 11 respectively, the bottom of box 1 is fixedly provided with sewage hopper 12, the bottom of sewage hopper 12 is fixedly provided with outlet pipe 121, the bottom of box 1 four corner positions are all fixedly provided with support leg 13, the sewage needing to be pretreated municipal water supply and drainage is introduced from inlet pipe 21 into water supply and drainage sewage tank 2, the sewage entering the inside of water supply and drainage sewage tank 2 can be discharged from one side water outlet groove 22 to first filter frame 4, the sewage can be filtered by first filter frame 4, the filtered sewage can enter sewage hopper 12, and is discharged by outlet pipe 121, after a period of time, when the impurities in first filter frame 4 need to be cleaned, at this time, personnel can manually rotate rotating disc 71 clockwise to drive screw rod 7 to rotate, screw rod 7 rotates can drive movable frame 3 along guide slide groove moves towards the side where second filter frame 5 is located, at this time, the sealing pad 6 on movable frame 3 can seal the water outlet groove 22 close to the side of first filter frame 4, while the water outlet groove 22 on the other side is in the open state, the sewage entering the inside of water supply and drainage sewage tank 2 can enter second filter frame 5 through the water outlet groove 22 on the other side, the sewage is filtered by second filter frame 5, the filtered sewage can enter sewage hopper 12, and is finally discharged through outlet pipe 121, at this time, first filter frame 4 can be manually taken out from step groove 11, the impurities in first filter frame 4 are cleaned out, when the impurities in second filter frame 5 need to be cleaned, movable frame 3 is moved towards the side where first filter frame 4 is located by rotating rotating disc 71 reversely,The water outlet groove 22 above the second filter frame 5 is sealed, and the impurities in the second filter frame 5 are cleaned, and the above operation is repeated alternately, so that the municipal water supply and drainage sewage can be continuously filtered and pretreated.

[0022] The gasket 6 is locked and fixed on the movable frame 3 by the hexagonal bolt 8. The bottom of the movable frame 3 is symmetrically provided with a mounting groove 31. The gasket 6 is clamped in the mounting groove 31. One end of the hexagonal bolt 8 penetrates the side wall of the movable frame 3 and is screwed into the threaded hole formed on the back of the gasket 6. By unscrewing the hexagonal bolt 8 from the gasket 6, the gasket 6 can be taken out of the mounting groove 31. The aging gasket 6 can be replaced, and the use effect is better. After a period of time, when the gasket 6 needs to be replaced due to aging, the hexagonal bolt 8 can be unscrewed from the gasket 6 by using a hexagonal wrench. The aging gasket 6 can be disassembled from the mounting groove 31. Then, the new gasket 6 is reinstalled in the mounting groove 31, and one end of the hexagonal bolt 8 is screwed into the threaded hole on the back of the gasket 6. The replacement of the gasket 6 is completed.

[0023] Working principle: when using, the sewage needing pretreatment is introduced into the sewage tank 2 from the inlet pipe 21, the sewage in the sewage tank 2 can be discharged to the first filter frame 4 from the water outlet groove 22 on one side, the sewage can be filtered through the first filter frame 4, and after filtering, the sewage can enter the sewage bucket 12 and be discharged through the outlet pipe 121, after a period of time, when the impurities in the first filter frame 4 need to be cleaned, the personnel can manually rotate the rotating disc 71 clockwise to drive the screw rod 7 to rotate, the rotation of the screw rod 7 can drive the movable frame 3 to move along the guide sliding groove to the side where the second filter frame 5 is located, at this time, the sealing gasket 6 on the movable frame 3 can seal the water outlet groove 22 close to the side of the first filter frame 4, and at the same time, the water outlet groove 22 on the other side is in an open state, the sewage in the sewage tank 2 can enter the second filter frame 5 through the water outlet groove 22 on the other side, and the sewage is filtered through the second filter frame 5, and after filtering, the sewage can enter the sewage bucket 12 and be finally discharged through the outlet pipe 121, at this time, the first filter frame 4 can be manually taken out from the step groove 11 to clean the impurities in the first filter frame 4, when the impurities in the second filter frame 5 need to be cleaned, the movable frame 3 is driven to move to the side where the first filter frame 4 is located by reversely rotating the rotating disc 71, so that the water outlet groove 22 above the second filter frame 5 is sealed, and the impurities in the second filter frame 5 can be cleaned, and the above operation is repeated alternately, so that the sewage for municipal water supply and drainage can be continuously filtered and pretreated, after a period of time, when the sealing gasket 6 needs to be replaced due to aging, the internal hexagonal bolt 8 can be rotated out of the sealing gasket 6 through the internal hexagonal wrench, the aging sealing gasket 6 can be disassembled from the mounting groove 31, then a new sealing gasket 6 is reinstalled in the mounting groove 31, and one end of the internal hexagonal bolt 8 is screwed into the threaded hole in the back of the sealing gasket 6, so that the replacement of the sealing gasket 6 is completed.

[0024] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification to the technical solutions described in the foregoing embodiments, and equivalent replacement of part of the technical features, all belong to the protection scope of the present application.

Claims

1. A sewage pretreatment device for municipal water supply and drainage, comprising a box (1), characterized in that: The top of the box (1) is fixedly connected with the water supply and drainage sewage tank (2), the top of the water supply and drainage sewage tank (2) is fixedly provided with a water inlet pipe (21), the lower part of the water supply and drainage sewage tank (2) is symmetrically provided with a water outlet groove (22) on both sides, the outer part of the water supply and drainage sewage tank (2) is slidably connected with a movable frame (3), the inside of the movable frame (3) is symmetrically fixed with a sealing gasket (6), the sealing gasket (6) is locked and fixed on the movable frame (3) through a hexagon socket head cap screw (8), the top of the movable frame (3) on one side is fixedly provided with a connecting support (32), the connecting support (32) is threaded through with a screw rod (7), one end of the screw rod (7) is fixedly sleeved with a rotating disc (71), and the other end of the screw rod (7) is rotatably connected with the water supply and drainage sewage tank (2) through a bearing, the top of the box (1) on one side of the water supply and drainage sewage tank (2) is clamped with a first filter frame (4), the top of the box (1) on the other side of the water supply and drainage sewage tank (2) is clamped with a second filter frame (5), the bottom of the box (1) is fixedly provided with a sewage hopper (12), and the bottom of the sewage hopper (12) is fixedly provided with a water outlet pipe (121).

2. The sewage pretreatment device for municipal water supply and sewerage according to claim 1, characterized by The bottom of the movable frame (3) is symmetrically provided with a mounting groove (31) on both sides.

3. The sewage pretreatment device for municipal water supply and sewerage according to claim 2, characterized by One end of the hexagon socket head cap screw (8) penetrates the side wall of the movable frame (3) and is screwed into the threaded hole formed in the back of the sealing gasket (6).

4. The sewage pretreatment device for municipal water supply and sewerage according to claim 1, characterized by The front and rear sides of the water supply and drainage sewage tank (2) are symmetrically provided with guide sliding grooves, and the movable frame (3) slides along the guide sliding grooves.

5. The sewage pretreatment device for municipal water supply and sewerage according to claim 1, characterized by The top of the box (1) on both sides of the water supply and drainage sewage tank (2) is symmetrically provided with a stepped groove (11), and the first filter frame (4) and the second filter frame (5) are clamped in the two stepped grooves (11) respectively.

6. The sewage pretreatment device for municipal water supply and sewerage according to claim 1, characterized by The bottom of the box (1) is fixedly provided with a supporting leg (13) at four corner positions.

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