CN108889030B

CN108889030B - High-efficient sewage pretreatment device

Info

Publication number: CN108889030B
Application number: CN201810825054.XA
Authority: CN
Inventors: 吴秀女; 何火生; 杨林; 顾佳涛
Original assignee: Zhejiang Zhongbo Joint Engineering Design Co ltd
Current assignee: Zhejiang Zhongbo Joint Engineering Design Co.,Ltd.
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2021-05-18
Anticipated expiration: 2038-07-25
Also published as: CN108889030A

Abstract

The invention discloses a high-efficiency sewage pretreatment device, which comprises a support frame, a screen cylinder and a sedimentation cylinder; the upper end of the support frame is fixedly connected with a screen drum, and the upper end of the screen drum is communicated with a water inlet pipe; a helical blade roller is arranged in the screen cylinder, an arc screen is nested at the lower end of the screen cylinder, and a water collecting hopper is fixedly connected at the lower end of the screen cylinder; and a settling cylinder is arranged below the water collecting hopper. The invention realizes the interception and collection of suspended garbage and large-particle garbage in sewage by the sieve drum with the screen at the bottom and the spiral blade roller in the inner cavity; through being equipped with and subsiding a section of thick bamboo, adopt centrifugal separation's mode, realize the high-efficient separation of silt particle, compare in grid net or the pretreatment methods that natural gravity subsides, improved sewage pretreatment's efficiency greatly.

Description

High-efficient sewage pretreatment device

Technical Field

The invention relates to the field of water treatment, in particular to a high-efficiency sewage pretreatment device.

Background

The sewage pretreatment is a pretreatment facility which is set according to the requirements of the subsequent treatment process on the 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 grating, a screen, a grit chamber, a sand-water separator and the like for the urban sewage centralized treatment plant and the sewage treatment plant dispersed in a pollution source, while for some industrial wastewater, the general pretreatment needs to be carried out, the regulation treatment of the water quality and the water quantity and other special pretreatments such as neutralization, wool fishing, preliminary sedimentation, preliminary aeration and the like need to be carried out before the industrial wastewater enters the centralized or dispersed sewage treatment plant, and if the pretreatment process does not reach the standard, the grating slag is caused to be excessive, and the loss of the subsequent treatment equipment is large.

Traditional through the grid net or salvage clear away suspension or large granule rubbish, need clear up the grid net, salvage many times, pretreatment efficiency is very low, has reduced whole sewage treatment efficiency.

Disclosure of Invention

The present invention is directed to a high efficiency sewage pretreatment device to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a high-efficiency sewage pretreatment device comprises a support frame, a screen cylinder and a sedimentation cylinder; the upper end of the support frame is fixedly connected with a screen drum, and the upper end of the screen drum is communicated with a water inlet pipe; a helical blade roller is arranged in the screen drum, extends to the left side of the screen drum and is connected with a driving motor through a coupling; the right side of the screen drum is hinged with a door plate; the lower end of the screen cylinder is nested with an arc screen, and the lower end of the screen cylinder is fixedly connected with a water collecting hopper; a settling cylinder is arranged below the water collecting hopper; an overflow pipe is arranged at the central axial position of the sedimentation cylinder, and the upper end of the overflow pipe extends to the outer side of the sedimentation cylinder; the lower end of the sedimentation cylinder is communicated with a silt box, the silt box is communicated with a blow-off pipe, and the blow-off pipe is provided with a valve.

As a further scheme of the invention: the lower end of the water collecting hopper is communicated with a water pump through a sewer pipe, the water pump is communicated with a sedimentation cylinder through a communicating pipe, and the communicating pipe is communicated with the sedimentation cylinder tangentially.

As a further scheme of the invention: the water collecting hopper is communicated with the settling cylinder through a sewer pipe, the overflow pipe sleeve is provided with a bearing sleeve, the bearing sleeve is fixedly connected with symmetrical stirring plates, a bevel gear ring is sleeved on the bearing sleeve, a transmission bevel gear is meshed with the bevel gear ring, a transmission shaft is fixedly connected with the transmission bevel gear, and the transmission shaft extends to the outer side of the settling cylinder and is connected with a helical blade roller through a transmission belt.

As a further scheme of the invention: the settling cylinder is a conical cylinder.

As a further scheme of the invention: the driving motor is fixedly connected with the supporting frame through the mounting plate.

As a further scheme of the invention: the door plate is provided with a handle and a lock catch.

As a further scheme of the invention: the water collecting hopper is sleeved outside the screen.

Compared with the prior art, the invention has the beneficial effects that: the invention realizes the interception and collection of suspended garbage and large-particle garbage in sewage by the sieve drum with the screen at the bottom and the spiral blade roller in the inner cavity; through being equipped with and subsiding a section of thick bamboo, adopt centrifugal separation's mode, realize the high-efficient separation of silt particle, compare in grid net or the pretreatment methods that natural gravity subsides, improved sewage pretreatment's efficiency greatly.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency sewage pretreatment device with a water pump;

FIG. 2 is a cross-sectional view of the middle and inner water collecting hoppers of the high efficiency sewage pretreatment apparatus;

FIG. 3 is a top view of a settling cylinder in the high efficiency wastewater pretreatment apparatus;

fig. 4 is a schematic structural diagram of the high-efficiency sewage pretreatment device with a stirring plate.

In the figure: 1-a support frame; 2-a screen cylinder; 3-water inlet pipe; 4-a helical blade roller; 5-a coupler; 6-driving a motor; 7-a screen mesh; 8-a water collecting hopper; 9-door panel; 10-a downcomer; 11-a water pump; 12-a communicating tube; 13-a settling cylinder; 14-overflow pipe; 15-a silt bin; 16-a sewage draining pipe; 17-a valve; 18-a bearing sleeve; 19-stirring plate; 20-bevel gear ring; 21-a drive bevel gear; 22-a drive shaft; 23-driving belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, in an embodiment of the present invention, an efficient sewage pretreatment apparatus includes a support frame 1, a screen cylinder 2, and a settling cylinder 13; the upper end of the support frame 1 is fixedly connected with a screen drum 2, the upper end of the screen drum 2 is communicated with a water inlet pipe 3, and the water inlet pipe 3 is communicated with external raw water; a spiral blade roller 4 is arranged in the screen cylinder 2, the spiral blade roller 4 extends to the left side of the screen cylinder 2 and is connected with a driving motor 6 through a coupling 5, the driving motor 6 is electrically connected with an external power supply, the driving motor 6 is fixedly connected with the support frame 1 through a mounting plate, the driving motor 6 drives the spiral blade roller 4 to rotate, and the spiral blade roller 4 collects and pushes garbage intercepted by the screen cylinder to the right side; the right side of the screen drum 2 is hinged with a door plate 9, and the door plate 9 is provided with a handle and a lock catch, so that garbage can be conveniently cleaned;

the lower end of the screen drum 2 is nested with an arc-shaped screen 7, the screen 7 is used for primarily filtering sewage, the lower end of the screen drum 2 is fixedly connected with a water collecting hopper 8, and the water collecting hopper 8 is sleeved outside the screen 7 and used for collecting sewage; the lower end of the water collecting hopper 8 is communicated with a water pump 11 through a sewer pipe 10, the water pump 11 is fixedly connected with the support frame 1 through a bolt fixing mode, the water pump 11 is communicated with a sedimentation cylinder 13 through a communicating pipe 12, the sedimentation cylinder 13 is a conical cylinder, and the communicating pipe 12 is tangentially communicated with the sedimentation cylinder 13; an overflow pipe 14 is arranged at the central axial position of the sedimentation cylinder 13, and the upper end of the overflow pipe 14 extends to the outer side of the sedimentation cylinder 13; the water pump 11 is electrically connected with an external power supply, the water pump 11 pressurizes the sewage in the water collecting hopper 8 and then tangentially introduces the sewage into the settling cylinder 13 from the communicating pipe 13, the sewage forms a rotational flow in the settling cylinder 13, solid particles in the sewage are quickly separated from the sewage under the action of centrifugal force, and compared with standing settlement, the efficiency is greatly improved; the lower end of the sedimentation cylinder 13 is communicated with a silt box 15, the silt box 15 collects solid particles, the silt box 15 is communicated with a drain pipe 16, and the drain pipe 16 is provided with a valve 17, so that sludge is conveniently removed.

Example 2

Referring to fig. 4, the difference between the present embodiment and embodiment 1 is: the water collecting hopper 8 is communicated with the settling cylinder 13 through the sewer pipe 10, the overflow pipe 14 is sleeved with the bearing sleeve 18, the bearing sleeve 18 is fixedly connected with symmetrical stirring plates 19, the upper end of the bearing sleeve 18 is sleeved with the bevel gear ring 20, the bevel gear ring 21 is meshed with the transmission bevel gear 21, the transmission bevel gear 21 is fixedly connected with the transmission shaft 22, the transmission shaft 22 extends to the outer side of the settling cylinder 13 and is connected with the helical blade roller 4 through the transmission belt, the helical blade roller 4 drives the transmission shaft 22 to rotate through the transmission belt 23, the transmission shaft 22 rotates through the transmission bevel gear 20 and the bearing sleeve 18, and then the stirring plates 19 are driven to rotate, so that sewage entering the settling cylinder 13 receives centrifugal force effect, and solid particles and the sewage.

The following are specifically mentioned: the screen, the driving motor and the water pump are in the prior art; the screen cylinder, the helical blade roller, the water collecting hopper, the settling cylinder, the bearing sleeve and the stirring plate are innovation points of the application; the screen drum with the screen at the bottom and the spiral blade roller in the inner cavity is used for intercepting and collecting suspended garbage and large-particle garbage in sewage; through being equipped with and subsiding a section of thick bamboo, adopt centrifugal separation's mode, realize the high-efficient separation of silt particle, compare in grid net or the pretreatment methods that natural gravity subsides, improved sewage pretreatment's efficiency greatly.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high-efficiency sewage pretreatment device comprises a support frame (1), a screen cylinder (2) and a sedimentation cylinder (13); the device is characterized in that the upper end of the support frame (1) is fixedly connected with a screen drum (2), and the upper end of the screen drum (2) is communicated with a water inlet pipe (3); a spiral blade roller (4) is arranged in the screen drum (2), the spiral blade roller (4) extends to the left side of the screen drum (2) and is connected with a driving motor (6) through a coupler (5); the right side of the screen drum (2) is hinged with a door plate (9); the lower end of the screen drum (2) is nested with an arc screen (7), and the lower end of the screen drum (2) is fixedly connected with a water collecting hopper (8); a settling cylinder (13) is arranged below the water collecting hopper (8); an overflow pipe (14) is arranged at the central axial position of the sedimentation cylinder (13), and the upper end of the overflow pipe (14) extends to the outer side of the sedimentation cylinder (13); the lower end of the sedimentation cylinder (13) is communicated with a silt box (15), the silt box (15) is communicated with a sewage discharge pipe (16), and the sewage discharge pipe (16) is provided with a valve (17); the water collecting hopper (8) is communicated with the settling cylinder (13) through a sewer pipe (10), a bearing sleeve (18) is sleeved on the overflow pipe (14), the bearing sleeve (18) is fixedly connected with symmetrical stirring plates (19), a bevel gear ring (20) is sleeved on the upper end of the bearing sleeve (18), a transmission bevel gear (21) is meshed with the bevel gear ring (20), the transmission bevel gear (21) is fixedly connected with a transmission shaft (22), the transmission shaft (22) extends to the outer side of the settling cylinder (13) and is connected with a spiral blade roller (4) through a transmission belt, the lower end of the water collecting hopper (8) is communicated with a water pump (11) through the sewer pipe (10), the water pump (11) is communicated with the settling cylinder (13) through a communication pipe (12), the communication pipe (12) is communicated with the settling cylinder (13) in a tangential direction, the settling cylinder (13) is a conical cylinder, and the driving motor (6, the door plate (9) is provided with a handle and a lock catch, and the water collecting hopper (8) is sleeved on the outer side of the screen (7).