CN217732852U

CN217732852U - Sewage pretreatment system

Info

Publication number: CN217732852U
Application number: CN202221666021.3U
Authority: CN
Inventors: 李鑫
Original assignee: Zhouzhi Environmental Protection Hubei Co ltd
Current assignee: Zhouzhi Environmental Protection Hubei Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-04
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a sewage pretreatment systems, including the box, grit chamber and flocculation basin have been seted up to the inside symmetry of box, and wherein, the elevator shell is installed near the outside in grit chamber to the box, and the inside of elevator shell rotates and is connected with the hob, and the motor is installed to elevator shell bottom, motor shaft end and hob fixed connection. The utility model discloses, when carrying out preliminary treatment to sewage, sewage is after through the prefiltration floater, get into the inside of grit chamber from the feeder hopper, the grit receives the ground step that gravity falls the grit chamber, later the grit passes through the inside that the inlet pipe got into the lifting machine shell, the motor drives the hob and rotates, promote the grit, when the material was located through the screen frame, sewage flows back to the grit chamber in from the back flow after passing through the filtration of screen frame, the grit passes through the discharging pipe and discharges, through the grit hoist mechanism who sets up, can continuously clear up the inside grit of grit chamber, in order to improve sewage pretreatment efficiency.

Description

Sewage pretreatment system

Technical Field

The utility model relates to a sewage pretreatment technical field specifically is a sewage pretreatment system.

Background

The sewage pretreatment is a pretreatment facility which is set according to the requirements of the subsequent treatment process on water quality before the sewage enters the traditional sedimentation, biological treatment and the like, is the throat of a sewage treatment plant, and mainly comprises treatment facilities such as a grid, a screen, a grit chamber, a sand-water separator and the like for the urban sewage centralized treatment plant and the sewage treatment plant scattered in a pollution source.

Current sewage pretreatment system is when using, and sewage passes through the grid prefilter back, carries out the sand setting through the grit chamber to sewage and handles, and the grit falls to the bottom in grit chamber, needs the staff regularly to clear up the grit of grit chamber bottom, and when clearing up, sewage pretreatment system stop work can't be when sewage pretreatment, and that lasts clears up the grit, leads to sewage treatment efficiency lower, inconvenient use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewage pretreatment system has solved current sewage pretreatment system when using, and sewage passes through the grid after prefilter, carries out the sand setting through the grit chamber to sewage and handles, and the grit falls to the bottom of grit chamber, needs the staff regularly to clear up the grit of grit chamber bottom, and when clearing up, sewage pretreatment system stop work, can't be when pretreatment of sewage, and what last clears up the grit, leads to sewage treatment efficiency lower, the inconvenient problem of using.

In order to achieve the above purpose, the utility model provides a following technical scheme: a sewage pretreatment system comprises a box body, wherein a grit chamber and a flocculation tank are symmetrically arranged in the box body,

the outer side of the box body, which is close to the grit chamber, is provided with a shell of the elevator, the inner part of the shell of the elevator is rotatably connected with a screw rod, the bottom end of the shell of the elevator is provided with a motor, the shaft end of the motor is fixedly connected with the screw rod, one side, which is close to the bottom, of the shell of the elevator is communicated with the grit chamber through a feeding pipe, and the other side, which is close to the top, of the shell of the elevator is communicated with a discharging pipe;

the lateral wall that the lifting machine shell is close to the top is provided with the screen frame, the outside cover that the lifting machine shell is close to the screen frame has the cover that catchments, it is linked together through back flow and grit chamber to catchment the cover, the grit chamber all rotates with the inside of flocculation basin and is connected with the (mixing) shaft, the hob passes through drive mechanism and drives the synchronous rotation of (mixing) shaft.

Preferably, the grit chamber is the tilt state, and grit chamber bottom sets up towards the feed pipe direction slope downwards.

Preferably, the top intercommunication that the box is close to the grit chamber has the feeder hopper, the box is close to flocculation bottom of the pool one side intercommunication and has the outlet pipe, the top mid-mounting of box has the water pump, water pump one side is linked together through drinking-water pipe and grit chamber, the water pump opposite side is linked together through inlet tube and flocculation chamber.

Preferably, the transmission mechanism comprises a transmission shaft, the inside of the box body close to the upper part is rotatably connected with the transmission shaft, the tops of the screw rod and the stirring shaft are both fixed with first reversing gears, and the outer sides of the transmission shaft corresponding to the first reversing gears are both fixed with second reversing gears.

Preferably, the flocculating tank is close to top one side and installs the flocculating agent shower nozzle, the internally mounted that the flocculating tank is close to the below has the filter stand, the box is close to filter stand top one side and has seted up the scum spout, the scum spout seals through the sealing plug.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses, when carrying out preliminary treatment to sewage, sewage is after through the prefiltration floater, get into the inside of grit chamber from the feeder hopper, the grit receives the ground step that gravity falls the grit chamber, later the grit passes through the inside that the inlet pipe got into the lifting machine shell, the motor drives the hob and rotates, promote the grit, when the material was located through the screen frame, sewage flows back to the grit chamber in from the back flow after passing through the filtration of screen frame, the grit passes through the discharging pipe and discharges, through the grit hoist mechanism who sets up, can continuously clear up the inside grit of grit chamber, in order to improve sewage pretreatment efficiency.

2. The utility model discloses, when the hob was promoted the grit, the hob drove the synchronous rotation of transmission shaft through first reversing gear and second reversing gear, and the transmission shaft drives the (mixing) shaft through the first reversing gear that corresponds and second reversing gear and rotates, drives through the (mixing) shaft that grit chamber and flocculation basin sewage produce rotatoryly, makes grit and flocculation basin deposit fast through the centrifugal force of rotatory production to further improve sewage treatment efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the stirring shaft of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. a box body; 2. a grit chamber; 3. a flocculation tank; 4. a feed hopper; 5. a water outlet pipe; 6. a water pump; 7. a water pumping pipe; 8. a water inlet pipe; 9. a hoist housing; 10. a screw rod; 11. a motor; 12. a feed pipe; 13. a discharge pipe; 14. a screen frame; 15. a water collection cover; 16. a return pipe; 17. a stirring shaft; 18. a drive shaft; 19. a first reversing gear; 20. a second reversing gear; 21. a flocculant spray head; 22. a filter frame; 23. a slag discharge port; 24. and (4) sealing the plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1 to 3, the present invention provides a technical solution: a sewage pretreatment system, which comprises a box body 1, wherein a grit chamber 2 and a flocculation tank 3 are symmetrically arranged inside the box body 1,

a hoist shell 9 is installed on the outer side, close to the grit chamber 2, of the box body 1, a spiral rod 10 is rotatably connected inside the hoist shell 9, a motor 11 is installed at the bottom end of the hoist shell 9, the shaft end of the motor 11 is fixedly connected with the spiral rod 10, one side, close to the bottom, of the hoist shell 9 is communicated with the grit chamber 2 through a feeding pipe 12, and the other side, close to the top, of the hoist shell 9 is communicated with a discharging pipe 13;

a filter screen frame 14 is arranged on the side wall of the elevator shell 9 close to the upper part, a water collecting cover 15 is sleeved on the outer side of the elevator shell 9 close to the filter screen frame 14, the water collecting cover 15 is communicated with the grit chamber 2 through a return pipe 16, stirring shafts 17 are rotatably connected in the grit chamber 2 and the flocculation tank 3, and the spiral rods 10 drive the stirring shafts 17 to synchronously rotate through a transmission mechanism;

when carrying out preliminary treatment to sewage, sewage is behind the prefiltration floater, from feeder hopper 4 entering grit chamber 2's inside, the grit receives the ground step that gravity falls grit chamber 2, later the grit passes through the inside that inlet pipe 12 got into lifting machine shell 9, motor 11 drives the hob 10 and rotates, promote the grit, when the material was through filter screen frame 14 department, sewage flows back to grit chamber 2 in from back flow 16 after through filter screen frame 14's filtration, the grit passes through discharging pipe 13 and discharges, through the grit hoist mechanism who sets up, can continuously clear up the grit of grit chamber 2 inside, in order to improve sewage pretreatment efficiency.

Referring to fig. 1, the grit chamber 2 is inclined, the bottom of the grit chamber 2 is inclined downwards towards the feeding pipe 12, the top of the box body 1 close to the grit chamber 2 is communicated with a feeding hopper 4, one side of the box body 1 close to the bottom of the flocculation tank 3 is communicated with a water outlet pipe 5, a water pump 6 is mounted in the middle of the top end of the box body 1, one side of the water pump 6 is communicated with the grit chamber 2 through a water pumping pipe 7, and the other side of the water pump 6 is communicated with the flocculation tank 3 through a water inlet pipe 8.

Referring to fig. 1 and 2, the transmission mechanism includes a transmission shaft 18, the transmission shaft 18 is rotatably connected to the inside of the box body 1 near the top, a first reversing gear 19 is fixed to the top of each of the screw rods 10 and the stirring shaft 17, a second reversing gear 20 is fixed to the outside of the transmission shaft 18 corresponding to the first reversing gear 19, the second reversing gear 20 is meshed with the first reversing gear 19, when the screw rods 10 lift sand and stone, the screw rods 10 drive the transmission shaft 18 to rotate synchronously through the first reversing gear 19 and the second reversing gear 20, the transmission shaft 18 drives the stirring shaft 17 to rotate through the corresponding first reversing gear 19 and the second reversing gear 20, the stirring shaft 17 drives the grit chamber 2 and sewage in the flocculation tank 3 to rotate, the sand and the flocculate are rapidly precipitated through centrifugal force generated by rotation, so as to improve sewage treatment efficiency, a flocculating agent nozzle 21 is installed on the side of the flocculation tank 3 near the top, a filter frame 22 is installed inside the flocculation tank 3 near the lower side, a slag discharge port 23 is opened on the side of the box body 1 near the filter frame 22, and the slag discharge port 23 is sealed by a sealing plug 24.

The working principle is as follows: this sewage pretreatment system, when carrying out preliminary treatment to sewage, sewage passes through behind the prefiltration floater, get into the inside of grit chamber 2 from feeder hopper 4, the grit receives the ground step that gravity falls to grit chamber 2, later the grit passes through the inside that inlet pipe 12 got into lifting machine shell 9, motor 11 drives hob 10 and rotates, promote the grit, when the material is through filter screen frame 14 department, sewage flows back to in grit chamber 2 from back flow 16 after the filtration of filter screen frame 14, the grit passes through discharging pipe 13 and discharges, grit hoisting mechanism through setting up, can continuously clear up the grit inside of grit chamber 2, in order to improve sewage pretreatment efficiency, simultaneously in water pump 6 with grit chamber 2 sewage suction flocculation basin 3, through adding the flocculating agent, after further handling sewage, filter sewage through filter frame 22, sewage through the outlet pipe 5 discharge, and when hob 10 carries out the promotion, hob 10 drives transmission shaft 18 and second reversing gear through first reversing gear 20 and drive transmission shaft 18 and drive the rotation of second reversing gear, the grit drives through rotatory flocculation shaft 17 with the grit through rotatory flocculation tank of grit and flocculation efficiency of sewage, it drives through rotatory (17) and further to drive the grit through centrifugal force to drive the grit) and deposit through the grit rotary stirring shaft 17.

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

Claims

1. The utility model provides a sewage pretreatment systems, includes box (1), its characterized in that: a grit chamber (2) and a flocculation tank (3) are symmetrically arranged in the box body (1), wherein,

a lifter shell (9) is installed on the outer side, close to the grit chamber (2), of the box body (1), a spiral rod (10) is rotatably connected inside the lifter shell (9), a motor (11) is installed at the bottom end of the lifter shell (9), the shaft end of the motor (11) is fixedly connected with the spiral rod (10), one side, close to the bottom, of the lifter shell (9) is communicated with the grit chamber (2) through a feeding pipe (12), and the other side, close to the top, of the lifter shell (9) is communicated with a discharging pipe (13);

the utility model discloses a sand settling basin, including lifting machine shell (9), lateral wall that lifting machine shell (9) are close to the top is provided with screen frame (14), the outside cover that lifting machine shell (9) are close to screen frame (14) has water collection cover (15), water collection cover (15) are linked together through back flow (16) and grit chamber (2), grit chamber (2) all rotate with the inside of flocculation basin (3) and are connected with (mixing) shaft (17), hob (10) drive (mixing) shaft (17) synchronous rotation through drive mechanism.

2. The sewage pretreatment system of claim 1, wherein: the grit chamber (2) is in an inclined state, and the bottom of the grit chamber (2) is inclined downwards towards the direction of the feeding pipe (12).

3. The sewage pretreatment system of claim 1, wherein: the top intercommunication that box (1) is close to grit chamber (2) has feeder hopper (4), box (1) is close to flocculation basin (3) bottom one side intercommunication and has outlet pipe (5), the top mid-mounting of box (1) has water pump (6), water pump (6) one side is linked together through drinking-water pipe (7) and grit chamber (2), water pump (6) opposite side is linked together through inlet tube (8) and flocculation basin (3).

4. The sewage pretreatment system of claim 1, wherein: the transmission mechanism comprises a transmission shaft (18), the inside of the box body (1) close to the upper side is rotatably connected with the transmission shaft (18), the tops of the screw rod (10) and the stirring shaft (17) are respectively fixed with a first reversing gear (19), and the outer side of the transmission shaft (18) corresponding to the first reversing gear (19) is respectively fixed with a second reversing gear (20).

5. The sewage pretreatment system of claim 1, wherein: flocculating tank (3) are close to top one side and install flocculating agent shower nozzle (21), flocculating tank (3) are close to the internally mounted of below and have filter frame (22), box (1) are close to filter frame (22) top one side and have seted up row cinder notch (23), arrange cinder notch (23) and seal through sealing plug (24).