CN110917668A - Precipitation device for sewage treatment - Google Patents

Precipitation device for sewage treatment Download PDF

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Publication number
CN110917668A
CN110917668A CN201911289714.8A CN201911289714A CN110917668A CN 110917668 A CN110917668 A CN 110917668A CN 201911289714 A CN201911289714 A CN 201911289714A CN 110917668 A CN110917668 A CN 110917668A
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CN
China
Prior art keywords
sedimentation
sedimentation tank
sewage treatment
tank
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911289714.8A
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Chinese (zh)
Inventor
田伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Run Chuan Environmental Protection Technology Co Ltd
Original Assignee
Xi'an Run Chuan Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Run Chuan Environmental Protection Technology Co Ltd filed Critical Xi'an Run Chuan Environmental Protection Technology Co Ltd
Priority to CN201911289714.8A priority Critical patent/CN110917668A/en
Publication of CN110917668A publication Critical patent/CN110917668A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012Settling tanks making use of filters, e.g. by floating layers of particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • B01D21/04Settling tanks with single outlets for the separated liquid with moving scrapers

Abstract

The invention discloses a sedimentation device for sewage treatment, which comprises a plurality of sedimentation tanks arranged in a step-type manner, wherein the bottom of the upper sedimentation tank is connected with the top of the lower sedimentation tank, the adjacent sedimentation tanks are communicated through a liquid discharge pipe, sludge scraping devices arranged horizontally are arranged in the sedimentation tanks, multiple times of sedimentation can be performed by adopting a step-type arrangement manner, the liquid in the upper sedimentation tank can be repeatedly carried and sedimentated by the adjacent lower sedimentation tank, the sedimentation operation is facilitated, the step-type arrangement converts the gravitational potential energy of the liquid into kinetic energy, and the purpose of conveying the liquid between the sedimentation tanks can be realized without power.

Description

Precipitation device for sewage treatment
Technical Field
The invention belongs to the technical field of sewage treatment, and relates to a precipitation device for sewage treatment.
Background
The sedimentation tank is a structure for removing suspended matters in water by using sedimentation and is a device for purifying water quality, the suspended matters in water are removed by using the natural sedimentation or coagulating sedimentation of water, and the sedimentation tank is divided into a horizontal sedimentation tank and a vertical sedimentation tank according to the water flow direction. The sedimentation effect is determined by the flow velocity of water in the sedimentation tank and the retention time of the water in the tank, in order to improve the sedimentation effect and reduce the land area, a honeycomb inclined tube counter-current sedimentation tank, an accelerated clarification tank, a pulse clarification tank and the like are mostly adopted, and the sedimentation tank is widely used in wastewater treatment. The sedimentation tank is an important device in the sewage treatment device and is used for separating clear liquid from sludge, the arrangement of the existing sedimentation tank is usually in the same plane, and great power is needed to finish liquid conveying from one sedimentation tank to another sedimentation tank, so that material resources are wasted.
Disclosure of Invention
The invention aims to provide a precipitation device for sewage treatment, which solves the problem that external force is required for multiple times of precipitation liquid conveying in the prior art.
The technical scheme includes that the sedimentation device for sewage treatment comprises a plurality of sedimentation tanks which are arranged in a stepped mode, the bottom of an upper sedimentation tank is connected with the top of a lower sedimentation tank, adjacent sedimentation tanks are communicated through a liquid discharge pipe, and horizontally arranged mud scraping devices are installed in the sedimentation tanks.
The present invention is also characterized in that,
the upper part of the sedimentation tank positioned at the top is provided with a liquid inlet pipe.
And a liquid discharge pipe is arranged on the side wall of each sedimentation tank, and the height between the liquid discharge pipe and the bottom surface of the sedimentation tank is 10-30 cm.
The mud scraping device comprises a motor located outside the sedimentation tank, the motor is connected with a lead screw through a coupler, the two ends of the lead screw are inserted into the inner side wall of the sedimentation tank, a sliding bearing is sleeved on the lead screw and installed in the scraper, a rubber scraper blade is installed on the side wall of the scraper, and the rubber scraper blade is in contact with the inner wall of the sedimentation tank.
The section of the sedimentation tank is trapezoidal, and the upper bottom of the trapezoid is positioned below the sedimentation tank.
The scraper is adapted to the section of the sedimentation tank.
And a filter screen is arranged between the mud scraping device and the liquid discharge pipe of the uppermost sedimentation tank, and the filter screen is horizontally arranged.
The sedimentation device for sewage treatment of the invention has at least the following beneficial effects:
firstly, the liquid in the upper sedimentation tank can be repeatedly accepted and sedimentated by adopting a step-type arrangement mode, the liquid in the lower sedimentation tank between adjacent sedimentation tanks can be repeatedly accepted and sedimentated, the sedimentation work is facilitated, the step-type arrangement mode converts the gravitational potential energy of the liquid into the kinetic energy, and the purpose of conveying the liquid between the sedimentation tanks can be realized without power;
secondly, a mud scraping device is arranged, and after the reprecipitation work is finished, the precipitated mud can be cleaned, so that the next precipitation work can be continued; the mud scraping device is driven by a forward and reverse rotating motor to drive the scraping plate, so that the deposited mud is accumulated and is convenient to clean; the rubber scraping blade is fixedly connected to the peripheral side wall of the scraping plate and can be in close contact with the inner cavity side wall of the sedimentation tank, so that mud scraping work is facilitated, and meanwhile mud scraping action is mild, and the inner wall of the sedimentation tank is not abraded;
thirdly, a filter screen is arranged in the uppermost sedimentation tank, and the filter screen can perform coarse filtration on the liquid which enters the sedimentation tank at the earliest time so as to avoid blocking a liquid outlet;
fourthly, the section of the sedimentation tank is trapezoidal, the tank wall is in a slope shape, and the external force borne by the tank wall is greatly reduced, so that the material consumption for building the tank wall is greatly reduced under the same pressure, the investment is saved, and the cost is reduced;
to sum up, the device has simple structure, good sedimentation effect and low cost.
Drawings
FIG. 1 is a schematic view showing the overall construction of a precipitation apparatus for sewage treatment according to the present invention;
FIG. 2 is a sectional view of the settling tank of the settling device for sewage treatment according to the present invention located at the uppermost position;
fig. 3 is a sectional view of a settling tank under the settling device for sewage treatment according to the present invention.
In the figure, 1, a sedimentation tank, 2, a screw rod, 3, a liquid discharge pipe, 4, a rubber scraper, 5, a scraper, 6, a motor, 7, a coupler, 8, a liquid inlet pipe, 9, a sliding bearing and 10, a filter screen are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The technical scheme adopted by the invention is that the sedimentation device for sewage treatment comprises a plurality of sedimentation tanks 1 which are arranged in a stepped manner as shown in figure 1, the bottom of the upper sedimentation tank 1 is connected with the top of the lower sedimentation tank 2, the adjacent sedimentation tanks 1 are communicated through a liquid discharge pipe 3, and sludge scraping devices which are horizontally arranged are arranged in the sedimentation tanks 1; the upper part of the uppermost sedimentation tank 1 is provided with a liquid inlet pipe 11; a liquid discharge pipe 3 is arranged on the side wall of each sedimentation tank 1, and the height between the liquid discharge pipe 3 and the bottom surface of the sedimentation tank 1 is 10 cm-30 cm.
As shown in fig. 2 and 3, the mud scraping device comprises a motor 6 located outside the sedimentation tank 1, the motor 6 is connected with a lead screw 2 through a coupler 7, the two ends of the lead screw 2 are inserted into the inner side wall of the sedimentation tank 1, a sliding bearing 9 is sleeved on the lead screw 2 and installed in a scraper 5, a rubber scraper 4 is installed on the side wall of the scraper 5, and the rubber scraper 4 is in contact with the inner wall of the sedimentation tank 1.
As shown in fig. 2 and 3, the section of the sedimentation tank is trapezoidal, and the upper bottom of the trapezoid is positioned below; the scraping plate 5 is adapted to the section of the sedimentation tank 1.
As shown in fig. 1, a filter screen 10 is installed between the sludge scraping device and the drain pipe 3 of the uppermost sedimentation tank 1, and the filter screen 10 is horizontally placed.
The working process of the sedimentation device for sewage treatment of the invention,
sewage passes through 8 sedimentation tanks 1 that flow into the top of feed liquor pipe, the liquid that gets into sedimentation tank 1 simultaneously carries out coarse filtration through filter screen 10, filter the big impurity in the liquid, avoid blockking up fluid-discharge tube 3, then leave liquid 1 at the sedimentation tank of top and open fluid-discharge tube 3 after 1 ~ 2 hours, the liquid inflow that is stood for the first time is in next sedimentation tank 1, sediment mud is kept somewhere with the bottom of the pool of last sedimentation tank 1, the above-mentioned action of repetition many times, final liquid is handled through many times of sedimentation, from the fluid-discharge tube 3 outflow of sedimentation tank 1 of below.
The mud scraping action is accomplished the back when liquid is depositd, needs handle the sediment mud of sedimentation tank to in the next time of depositing work go on, open the 6 power of motor, motor 6 drives lead screw 2 and rotates, and lead screw 2 drive slide bearing 9, slide bearing 9 drive scraper blade 5 and remove, will deposit the mud and pile up the corner in sedimentation tank 1, then the manual work will deposit the mud and shovel out the sedimentation tank, be convenient for carry out the next time and deposit.

Claims (7)

1. Sedimentation device for sewage treatment, its characterized in that, including a plurality of sedimentation tanks (1) of cascaded arrangement, on the bottom of sedimentation tank (1) with under sedimentation tank (2) top meets, and is adjacent sedimentation tank (1) passes through fluid-discharge tube (3) intercommunication, all install the mud scraping device that the level set up in sedimentation tank (1).
2. A sewage treatment precipitation apparatus as claimed in claim 1, wherein a liquid inlet pipe (11) is installed at an upper portion of the uppermost precipitation tank (1).
3. The sewage treatment sedimentation device according to claim 1, wherein a drain pipe (3) is installed on a side wall of each sedimentation tank (1), and a height between the drain pipe (3) and a bottom surface of the sedimentation tank (1) is 10cm to 30 cm.
4. The sedimentation device for sewage treatment as defined in claim 1, wherein the mud scraping device comprises a motor (6) located outside the sedimentation tank (1), the motor (6) is connected with a lead screw (2) through a coupler (7), both ends of the lead screw (2) are inserted into the inner side wall of the sedimentation tank (1), a sliding bearing (9) is sleeved on the lead screw (2), the sliding bearing is installed in a scraper (5), a rubber scraper (4) is installed on the side wall of the scraper (5), and the rubber scraper (4) is in contact with the inner wall of the sedimentation tank (1).
5. A sedimentation device for sewage treatment according to claim 1, wherein the sedimentation tank has a trapezoidal cross section, and an upper bottom of the trapezoidal cross section is located below.
6. A sedimentation device for sewage treatment according to claim 1, characterised in that the scraper (5) is adapted to the cross-section of the sedimentation basin (1).
7. A sedimentation device for sewage treatment according to claim 1, wherein a filter screen (10) is installed between the sludge scraping means of the uppermost sedimentation tank (1) and the drain pipe (3), the filter screen (10) being horizontally placed.
CN201911289714.8A 2019-12-13 2019-12-13 Precipitation device for sewage treatment Pending CN110917668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911289714.8A CN110917668A (en) 2019-12-13 2019-12-13 Precipitation device for sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911289714.8A CN110917668A (en) 2019-12-13 2019-12-13 Precipitation device for sewage treatment

Publications (1)

Publication Number Publication Date
CN110917668A true CN110917668A (en) 2020-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911289714.8A Pending CN110917668A (en) 2019-12-13 2019-12-13 Precipitation device for sewage treatment

Country Status (1)

Country Link
CN (1) CN110917668A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112354222A (en) * 2020-10-27 2021-02-12 李节玲 Be applied to sewage treatment's sedimentation tank
CN113262559A (en) * 2021-04-22 2021-08-17 唐友慧 Sewage sedimentation system with sedimentation and screening functions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170233275A1 (en) * 2016-02-12 2017-08-17 Denny Hastings Flp 14 Transportable multi-chamber water filtration systems
CN209596627U (en) * 2018-12-04 2019-11-08 中铁城乡环保工程有限公司 A kind of sedimentation basin
CN209735042U (en) * 2019-10-20 2019-12-06 李俊宏 Building site sewage treatment's sedimentation tank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170233275A1 (en) * 2016-02-12 2017-08-17 Denny Hastings Flp 14 Transportable multi-chamber water filtration systems
CN209596627U (en) * 2018-12-04 2019-11-08 中铁城乡环保工程有限公司 A kind of sedimentation basin
CN209735042U (en) * 2019-10-20 2019-12-06 李俊宏 Building site sewage treatment's sedimentation tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112354222A (en) * 2020-10-27 2021-02-12 李节玲 Be applied to sewage treatment's sedimentation tank
CN113262559A (en) * 2021-04-22 2021-08-17 唐友慧 Sewage sedimentation system with sedimentation and screening functions

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Application publication date: 20200327

RJ01 Rejection of invention patent application after publication