CN109758829B

CN109758829B - Sewage settling tank

Info

Publication number: CN109758829B
Application number: CN201910258983.1A
Authority: CN
Inventors: 陆涛
Original assignee: Jiangsu Sanlujiu Intelligent Technology Co ltd
Current assignee: Shangrao Chuanhe Building Materials Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2021-01-12
Anticipated expiration: 2039-04-02
Also published as: CN109758829A

Abstract

The invention discloses a sewage settling tank, which comprises a tank body; a mixing cylinder with a conical cylindrical structure and an opening at the lower end is arranged at the central axis of the tank body, and a vertical water outlet pipe is arranged at the central axis of the mixing cylinder; the stirring plate is arranged at the upper end of the vertical water outlet pipe, the central shaft is fixedly connected with the stirring plate, and the liquid outlet pipe which is circumferentially distributed and communicated with the central shaft is fixedly connected onto the central shaft. According to the invention, the vertical water outlet pipe and the liquid outlet pipe which are arranged oppositely, the mixing cylinder which is in a conical cylindrical structure, the stirring plate and the rotating central shaft are arranged, so that the front collision mixing of a precipitator and sewage is realized, and a rotational flow is formed under the stirring of the stirring plate, the efficiency of flocculation and precipitation is accelerated, the volume of a precipitation flocculation block is improved, and the subsequent precipitation is convenient to generate; through the vertical helical blade roller and the horizontal helical blade roller which are provided with linkage, the sludge is discharged outside, and the sludge is prevented from blocking the sludge outlet pipe.

Description

Sewage settling tank

Technical Field

The invention relates to the field of sewage treatment equipment, in particular to a sewage settling tank.

Background

The sedimentation tank is a structure for removing suspended matters in water by applying sedimentation and is equipment for purifying water. The suspended substances in the water are removed by utilizing the natural sedimentation or coagulating sedimentation of the water. The sedimentation tank is divided into a horizontal sedimentation tank and a vertical sedimentation tank according to the water flow direction. The settling effect is determined by the flow rate of the water in the settling tank and the residence 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 at present, and the sedimentation tank is widely used in wastewater treatment.

Traditional sedimentation tank adopts rabbling mechanism to make flocculation precipitant fully contact with sewage, but because sedimentation tank is bulky, flocculating agent and sewage contact efficiency are not high, cause the speed that the sediment generated flocculation conglobation slow, influence sewage treatment's efficiency.

Disclosure of Invention

The invention aims to provide a sewage settling tank to solve the problems in the background technology.

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

a sewage sedimentation tank comprises a tank body; a mixing cylinder with a conical cylindrical structure with an opening at the lower end is arranged at the central axis of the tank body, a vertical water outlet pipe is arranged at the central axis of the mixing cylinder, and the vertical water outlet pipe is communicated with a water inlet pump through a water inlet pipe; the upper end of the vertical water outlet pipe is provided with a stirring plate, the stirring plate is fixedly connected with a central shaft, and the central shaft is fixedly connected with a liquid outlet pipe which is circumferentially distributed and communicated with the central shaft; the center pin upper end extends to jar body top and has the feed liquor pipe through rotary joint intercommunication, and the feed liquor pipe intercommunication has the liquid reserve tank.

As a further scheme of the invention: the jar body lower part is equipped with the drip chamber, and the drip chamber is the toper chamber, and drip chamber lower extreme intercommunication has the unloading pipe, and unloading pipe side intercommunication has a mud pipe, and a mud pipe is equipped with manual valve, is equipped with vertical helical blade roller in the unloading pipe, goes out the intraductal horizontal helical blade roller that is equipped with of mud, and the pivot of vertical helical blade roller and the pivot of horizontal helical blade roller are reverse to be extended and through drive gear group link, and the pivot of horizontal helical blade roller has the second driving motor through the coupling joint.

As a further scheme of the invention: the transmission gear set comprises a group of bevel gears which are vertically meshed with each other.

As a further scheme of the invention: the mixing cylinder is fixedly connected with the inner wall of the tank body through a mounting rod.

As a further scheme of the invention: the central shaft is a hollow shaft.

As a further scheme of the invention: the central shaft penetrates through the mixing cylinder, and a through hole is formed in the upper end surface of the mixing cylinder; the center pin extends to jar body top and is connected with first driving motor's output shaft through driving belt.

As a further scheme of the invention: the mixing drum top is equipped with the filter, filter and jar internal wall fixed connection, and the filter top is equipped with the outlet pipe, outlet pipe and jar internal chamber intercommunication.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the vertical water outlet pipe and the liquid outlet pipe which are arranged oppositely, the mixing cylinder which is in a conical cylindrical structure, the stirring plate and the rotating central shaft are arranged, so that the front collision mixing of a precipitator and sewage is realized, and a rotational flow is formed under the stirring of the stirring plate, the efficiency of flocculation and precipitation is accelerated, the volume of a precipitation flocculation block is improved, and the subsequent precipitation is convenient to generate; through the vertical helical blade roller and the horizontal helical blade roller which are provided with linkage, the sludge is discharged outside, and the sludge is prevented from blocking the sludge outlet pipe.

Drawings

FIG. 1 is a schematic view of the internal mechanism of a sewage settling tank;

FIG. 2 is a perspective view of a mixing drum in the sewage settling tank;

FIG. 3 is a schematic view of the internal structure of the central shaft in the sewage settling tank.

In the figure: 1-tank body; 2-mixing cylinder; 3-mounting a rod; 4-vertical water outlet pipe; 5-water inlet pipe; 6-a water inlet pump; 7-stirring plate; 8-a liquid outlet pipe; 9-a through hole; 10-a central axis; 11-a rotary joint; 12-a liquid inlet pipe; 13-liquid medicine box; 14-a drive belt; 15-a first drive motor; 16-a sedimentation chamber; 17-a blanking pipe; 18-vertical helical blade rolls; 19-a mud outlet pipe; 20-horizontal helical blade roll; 21-a drive gear set; 22-a second drive motor; 23-a filter plate; and 24-water outlet pipe.

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, a sewage settling tank includes a tank body 1; a mixing cylinder 2 is arranged in the tank body 1, the mixing cylinder 2 is positioned on the central axis of the tank body 1, the mixing cylinder 2 is a conical cylinder with an opening at the lower end, and the mixing cylinder 2 is fixedly connected with the inner wall of the tank body 1 through a mounting rod 3; a vertical water outlet pipe 4 is arranged at the central axis position of the mixing cylinder 2, the vertical water outlet pipe 4 is communicated with a water inlet pump 6 through a water inlet pipe 5, the water inlet pump 6 is communicated with an external wastewater tank to be treated, the water inlet pump 6 is electrically connected with an external power supply, and the water inlet pump 6 pumps wastewater into the vertical water outlet pipe 4 in the mixing cylinder 2 through the water inlet pipe 5 to be discharged; the upper end of the vertical water outlet pipe 4 is provided with a stirring plate 7, the stirring plate 7 is fixedly connected with a central shaft 10, the central shaft 10 is a hollow shaft, the central shaft 10 is fixedly connected with liquid outlet pipes 8 which are distributed circumferentially, and the liquid outlet pipes 8 are communicated with the central shaft 10; the center pin 10 upper end extends to jar body 1 top and has feed liquor pipe 12 through rotary joint 11 intercommunication, and feed liquor pipe 12 intercommunication has liquid reserve tank 13, has filled the precipitant solution in the liquid reserve tank 13, is equipped with manual valve on the feed liquor pipe 12, opens the manual valve of feed liquor pipe 12 upper end, and the precipitant solution enters into in the center pin 10 and mixes from 8 discharge of drain pipe and the ascending exhaust sewage frontal collision of vertical outlet pipe 4 through feed liquor pipe 12, has better mixed effect.

The central shaft 10 penetrates through the mixing cylinder 2, and the upper end surface of the mixing cylinder 2 is provided with a through hole 9; the central shaft 10 extends to the upper part of the tank body 1 and is connected with an output shaft of a first driving motor 15 through a transmission belt 14, the first driving motor 15 is electrically connected with an external power supply, and the first driving motor 15 drives the central shaft 10 to rotate through the transmission belt 14 so as to drive the stirring plate 7 to rotate; start first driving motor 15, drive stirring board 7 rotates for mix back sewage and precipitant solution in the hybrid chamber and stirred, mixing drum 2 is a toper section of thick bamboo, make mixed liquid form the whirl, the sediment after flocculation under the effect of centrifugal force with the contact friction of 2 inner walls of mixing drum under the effect of centrifugal force, make and do the flocculation piece much and further combine the flocculation on 2 inner walls of mixing drum, increase and deposit flocculation efficiency, the bold deposits along with the whirl is discharged from 2 lower extreme openings of mixing drum after the flocculation.

The lower part of the tank body 1 is provided with a sedimentation cavity 16, the sedimentation cavity 16 is a conical cavity, sewage mixed with flocculation and precipitation enters the sedimentation cavity 16 from the lower end of the mixing cylinder 2, the space is rapidly enlarged, the rotational flow kinetic energy is reduced, and the flocculation and precipitation is mainly subjected to the action of gravity to be settled.

2 tops of mixing drum are equipped with filter 23, and filter 23 and the internal wall fixed connection of jar 1, filter 23 top are equipped with outlet pipe 24, and outlet pipe 24 and the internal chamber intercommunication of jar 1, behind filter 23, the sewage after the flocculation and precipitation discharges from outlet pipe 24, gets into processing on next step.

Example 2

This example differs from example 1 in that: the lower end of the sedimentation cavity 16 is communicated with a blanking pipe 17, the side edge of the blanking pipe 17 is communicated with a mud outlet pipe 19, the mud outlet pipe 19 is provided with a manual valve, a vertical helical blade roller 18 is arranged in the blanking pipe 17, a horizontal helical blade roller 20 is arranged in the mud outlet pipe 19, a rotating shaft of the vertical helical blade roller 18 and a rotating shaft of the horizontal helical blade roller 20 extend in opposite directions and are connected through a transmission gear set 21, and the transmission gear set 21 comprises a group of bevel gears which are mutually vertically meshed; the pivot of horizontal helical blade roller 20 has second driving motor 22 through the coupling joint, and second driving motor 22 and external power source electric connection, second driving motor 22 drive vertical helical blade roller 18 and horizontal helical blade roller 20 and rotate, clear up mud in the sedimentation chamber 16, and the clearance is effectual, avoids mud to block up out the mud pipe.

The following are specifically mentioned: in the application, the tank body, the stirring plate, the water inlet pump and the driving motor are in the prior art; the vertical water outlet pipe, the liquid outlet pipe, the central shaft, the transmission belt, the rotary joint, the mixing cylinder, the vertical spiral blade roller and the horizontal spiral blade roller are innovation points of the application; through the arrangement of the vertical water outlet pipe and the liquid outlet pipe which are oppositely arranged, the mixing cylinder which is in a conical cylindrical structure, the stirring plate and the rotating central shaft, the front collision mixing of the precipitator and the sewage is realized, and simultaneously, a rotational flow is formed under the stirring of the stirring plate, so that the efficiency of flocculation and precipitation is accelerated, the volume of a precipitation flocculation block is improved, and the subsequent precipitation is convenient to generate; through the vertical helical blade roller and the horizontal helical blade roller which are provided with linkage, the sludge is discharged outside, and the sludge is prevented from blocking the sludge outlet pipe.

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 sewage settling tank, which comprises a tank body (1); the water-saving tank is characterized in that a mixing cylinder (2) of a conical cylindrical structure with an opening at the lower end is arranged at the central axis of the tank body (1), a vertical water outlet pipe (4) is arranged at the central axis of the mixing cylinder (2), and the vertical water outlet pipe (4) is communicated with a water inlet pump (6) through a water inlet pipe (5); a stirring plate (7) is arranged at the upper end of the vertical water outlet pipe (4), the stirring plate (7) is fixedly connected with a central shaft (10), the central shaft (10) is a hollow shaft, and liquid outlet pipes (8) which are distributed circumferentially and communicated with the central shaft (10) are fixedly connected to the central shaft (10); the upper end of the central shaft (10) extends to the upper part of the tank body (1) and is communicated with a liquid inlet pipe (12) through a rotary joint (11), the liquid inlet pipe (12) is communicated with a liquid storage tank (13), the lower part of the tank body (1) is provided with a sedimentation chamber (16), the sedimentation chamber (16) is a conical chamber, the lower end of the sedimentation chamber (16) is communicated with a discharging pipe (17), the side edge of the discharging pipe (17) is communicated with a mud outlet pipe (19), the mud outlet pipe (19) is provided with a manual valve, a vertical spiral blade roller (18) is arranged in the discharging pipe (17), a horizontal spiral blade roller (20) is arranged in the mud outlet pipe (19), a rotating shaft of the vertical spiral blade roller (18) and a rotating shaft of the horizontal spiral blade roller (20) extend in opposite directions and are connected through a transmission gear set (21), the transmission gear set (21) comprises a set of bevel gears which are vertically tangent to each other, the rotating shaft of the horizontal spiral blade roller (20, the central shaft (10) penetrates through the mixing cylinder (2), and a through hole (9) is formed in the upper end face of the mixing cylinder (2); the central shaft (10) extends to the upper part of the tank body (1) and is connected with an output shaft of a first driving motor (15) through a transmission belt (14).

2. A sewage precipitation tank according to claim 1, characterized in that said mixing drum (2) is fixedly connected to the inner wall of the tank body (1) by means of a mounting rod (3).

3. A sewage precipitation tank according to claim 1, characterized in that a filter plate (23) is arranged above the mixing drum (2), the filter plate (23) is fixedly connected with the inner wall of the tank body (1), a water outlet pipe (24) is arranged above the filter plate (23), and the water outlet pipe (24) is communicated with the inner cavity of the tank body (1).