CN206843175U

CN206843175U - A kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system

Info

Publication number: CN206843175U
Application number: CN201720448894.XU
Authority: CN
Inventors: 王宝山; 孙秦川; 刘娟; 谭磊
Original assignee: Gansu Zhongxin Environment Engineering Technology Co Ltd; Lanzhou Jiaotong University
Current assignee: Gansu Zhongxin Environment Engineering Technology Co Ltd; Lanzhou Jiaotong University
Priority date: 2017-04-26
Filing date: 2017-04-26
Publication date: 2018-01-05
Anticipated expiration: 2027-04-26

Abstract

The utility model discloses a kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system, belong to technical field of sewage；It includes：Casing, square hollow structure, open up port base section；Trapping baffle plate, positioned at port side and lower clapboard and upper spacer by misplacing separately and up and down are combined and formed, and lower clapboard is tightly connected with bottom half and box bilateral wall sealed connection, upper spacer and casing top and box bilateral wall；Admission line, its outlet port are located in the space that casing and lower clapboard are surrounded；And mud return line, the top of casing side is connected to by airway tube, the entrance point of airway tube is located in the space that upper spacer is surrounded with casing；The utility model is simple in construction, cost is cheap, it is easy for installation, operation when without maintenance, it is easily controllable while big to the hoisting power of sludge, beneficial to improve water lift processing operating efficiency.

Description

A kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system

Technical field

It the utility model is related to technical field of sewage, and in particular to a kind of suitable for small-sized sewage treating system Gas stripping type sludge refluxing apparatus.

Background technology

With the development of the social economy, environmental problem becomes increasingly conspicuous, especially water environmental problems are most concerned.Such as Modern wastewater treatment in China technology enters fast-developing period, and the sewage that pair can include municipal sewage system takes centralized dirt Water technology is handled.But as the fast development of urbanization, the development of municipal wastewater collection system relatively lag behind, point Formula sewage disposal technology is dissipated to be rapidly progressed.

In decentralized type sewage treatment technology based on activated sludge process, activated sludge technology need to configure corresponding activated sludge Sedimentation basin and refluxing unit.Decentralized type sewage processing system water is small, and sludge refluxing apparatus operating cost is too high, and fault rate is high, And later stage operation power consumption is larger.Gas stripping type sludge refluxing apparatus solves the sludge of small-sized sewage treating system biological reaction pool Reflux problem, have without additional sludge reflux pump, reduced investment, operating cost is low, and disposably installs the later stage without maintenance The advantages that, for a kind of economical and effective small-sized sludge reflux technology.

It is existing be used in small-sized sewage treating system typical air lift device lifting force is small, operating efficiency is low.

Utility model content

The purpose of this utility model be to provide it is a kind of it is simple in construction, easy to use, lifting force is big, operating efficiency is high is applicable Gas stripping type sludge refluxing apparatus in small-sized sewage treating system.

The technical solution adopted in the utility model is to achieve the above object：

A kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system, including：

Casing, square hollow structure, open up port base section；

Trapping baffle plate, positioned at port side and lower clapboard and upper spacer by misplacing separately and up and down are combined and formed, under Dividing plate is tightly connected with bottom half and box bilateral wall sealed connection, upper spacer and casing top and box bilateral wall；

Admission line, its outlet port are located in the space that casing and lower clapboard are surrounded；And

Mud return line, is connected to the top of casing side by airway tube, the entrance point of airway tube be located at upper spacer with In the space that casing is surrounded；

Further, the admission line is connected on casing and gos deep into box house, and is aerated in box house and tubular type Device is connected；Tube aerator can form stable bubble and be supplied to box house；

Further, the tube aerator is located at directly over port；Liquid when tube aerator sprays gas can be slowed down to disturb It is dynamic that impact is produced to casing, especially to impact caused by lower clapboard；

Further, the tube aerator accumbency is in box house, its top apart from the distance of bottom half be less than every Distance of the plate lower edge apart from bottom half；The lower section that so tube aerator can be all the time in liquid level in casing, can be beneficial to To liquid continuous oxygenation.

Operation principle of the present utility model is：Box house fluidifies before work, is supplied by steam line and through pipe Formula aerator outburst gas forms bubble, and bubble is quickly floated to casing top and built up, now the liquid one of box house Part is discharged through port, another part is drained into mud return line through airway tube, when liquid level drops to the upper edge of lower clapboard, The liquid that lower clapboard surrounds space with casing is persistently discharged through port, and the liquid in lower clapboard and upper spacer grasping part is by sky Gas extrudes, liquid level continuous decrease, before upper spacer lower edge is dropped to, by upper spacer and casing surround liquid in space by Drained into extruded airway tube in mud return line, when under the liquid levels and upper spacer in lower clapboard and upper spacer grasping part Edge adjacent to when, it may appear that portion gas is poured in through upper spacer lower edge in the fluid space surrounded by upper spacer and casing, Form one big strand of bubble and rapidly rise and accumulate in casing top, and intensively pour mud return line through airway tube, by dirt Fluid column in mud return duct cuts off and forms larger bubble, and the pressure of the bubble is more than the gravity of fluid column above bubble, can promote Outside the fluid column discharge pipe of top, the formation pressure differential in a flash of bubble discharge, the pressure differential is that mud return line drives sludge row The power gone out；After the bubble formation, the of short duration reduction of pressure for the gas-phase space that casing is formed, liquid Space are extruded by the bubble And section clamped by lower clapboard and upper spacer is poured in, and then of short duration do not had upper spacer lower edge；When the bubble is discharged and Under lasting supply, the liquid level in section clamped by lower clapboard and upper spacer is again at the critical localisation of upper spacer lower edge, and then Next larger bubble is formed, in this way, forming a lasting course of work.

The beneficial effects of the utility model are：

The utility model produces larger bubble using trapping baffle plate, and the fluid column in mud return line is cut off using bubble, Bubble, which rises, extrudes superposed fluid column, and pressure differential can be formed after bubble-break, makes the dirt of mud return line absorption lower section Mud, make sludge reflux, its absorption affinity is big using pressure differential lifting sludge, beneficial to raising operating efficiency.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is overlooking the structure diagram of the present utility model.

Wherein：1- casings；2- ports；3- trapping baffle plates；4- lower clapboards；5- upper spacers；6- admission lines；7- sludge refluxes Pipe；8- airway tubes；9- tube aerators.

Embodiment

The utility model preferred embodiment is illustrated below in conjunction with accompanying drawing：

As illustrated in fig. 1 and 2, a kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system, including：Case Body 1, trapping baffle plate 3, admission line 6 and mud return line 8；

Its middle case 1, square hollow structure, opens up port 2 base section；Port 2 can be opened up in strip and position In the bottom side of casing 1, port 2 is mainly used in draining, and casing 1 can be made of lucite, can also use rigid plastics It is made, is prepared as using metal material, needs that there is corrosion resistant characteristic；

Trapping baffle plate 3, positioned at the side of port 2 and lower clapboard 4 and upper spacer 5 by misplacing separately and up and down combine structure Into lower clapboard 4 is tightly connected with the bottom of casing 1 and the two side of casing 1, upper spacer 5 and the top of casing 1 and the two side of casing 1 are close Envelope connection；Lower clapboard 4 and upper spacer 5 are using the material to match with casing 1；Lower clapboard 4 and upper spacer 5 can use identical chi It is very little, different sizes can also be used, need to ensure that the upper edge of lower clapboard 4 is higher than the lower edge of upper spacer 5 when actually manufacturing； The setting of lower clapboard 4 is to prevent lower clapboard 4 and casing 1 surround the liquid surface fluctuation in space from being produced to the lower edge of upper spacer 5 The combination application of caused de-stabilising effect during anger bubble, lower clapboard 4 and upper spacer 5 forms grasping part and provides one for gas Individual stable transfer passage, while ensure that the stability that bubble is produced along upper spacer 5；

Admission line 6, its outlet port are located in the space that casing 1 and lower clapboard 4 are surrounded；Can be by outside from port 2 are deep into inside casing 1, and admission line 6 is connected on casing 1 and goed deep into inside casing 1 by the utility model, and in casing 1 Inside is connected with tube aerator 9；Tube aerator 9 is preferably located at directly over port 2, avoids spraying gas exemplified by being mainly When cause liquid perturbation and influence the stability of lower clapboard 4, avoid or slow down lower clapboard 4 produce vibration；The accumbency of tube aerator 9 Inside casing 1, distance of its top apart from the bottom of casing 1 is less than distance of the lower edge of upper spacer 5 apart from the bottom of casing 1, pipe Formula aerator 9 is applied not only to supply, and is additionally operable to liquid oxygenation, now distance of the top of tube aerator 9 apart from the bottom of casing 1 Distance less than the lower edge of upper spacer 5 apart from the bottom of casing 1, it can be ensured that tube aerator 9 is buried by liquid level all the time, oxygenation with Supply is neglected neither；

Mud return line 7, is connected to the top of the side of casing 1 by airway tube 8, the entrance point of airway tube 8 be located at every In the space that plate 5 is surrounded with casing 1；The diameter of airway tube 8 is less than mud return line 7, settable corresponding being actually manufactured into Ruggedized construction, mud return line 7 and airway tube 8 can use the plastic tube of lucite tube or hard, can in material selection To be matched with casing 1, in the utility model, sludge reflux is carried out using pressure differential, hoisting power is big, so mud return line 7 can set differing tilt angles to adapt to the demand of practical application, and angle of inclination can be controlled in 45 ° ~ 90 °.

When the utility model is applied in dispersed miniature sewage disposal system：

Dispersed miniature sewage disposal system, generally need to configure aeration tank and sedimentation basin, it is real in aeration tank Show the biodegradation of pollutant, the separation of activated sludge is realized in sedimentation basin.The activated sludge needs that sedimentation basin gathers are back to Continue to play biodegradation in aeration tank.

The device is positioned over sedimentation basin bottom, on admission line 6 valve and gas flow meter can be set to be regulated and controled, And connected with external air source, external air source can be that independent source of the gas can also be aerating pipelines in the water system, and sludge returns The lower end of flow tube 7 is placed in the bucket of sedimentation basin bottom, upper end is stretched out liquid level and is connected with aeration tank；Because sedimentation basin easily lacks Oxygen situation, therefore the tube aerator 9 in the utility model can also preferably solve the problem.

The utility model it is simple in construction it is easily fabricated, cost is cheap, it is easy for installation, operation when without maintenance, it is easily controllable, In dispersed miniature sewage disposal system, its sludge lifting ability is big, and operating efficiency is handled beneficial to water lift is improved.

Finally it should be noted that：The preferred embodiment of utility model is the foregoing is only, is not limited to practicality It is new, although utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, its The technical scheme described in foregoing embodiments can still be modified, or which part technical characteristic is equal Replace.All spirit in utility model any modification, equivalent substitution and improvements made etc., should be included in reality with principle Within new protection domain.

Claims

A kind of 1. gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system, it is characterised in that including：

Casing (1), square hollow structure, open up port (2) base section；

Trapping baffle plate (3), positioned at port (2) side and the lower clapboard (4) by misplacing separately and up and down and upper spacer (5) combine Form, lower clapboard (4) and casing (1) bottom and casing (1) two side sealed connection, upper spacer (5) and casing (1) top and case Body (1) two side is tightly connected；

Admission line (6), its outlet port are located in the space that casing (1) and lower clapboard (4) are surrounded；And

Mud return line (7), the top of casing (1) side is connected to by airway tube (8), and the entrance point of airway tube (8) is located at In the space that upper spacer (5) is surrounded with casing (1).
2. a kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system as claimed in claim 1, it is special Sign is that the admission line (6) is connected on casing (1) and gos deep into casing (1) inside, and in casing (1) inside and tubular type Aerator (9) is connected.
3. a kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system as claimed in claim 2, it is special Sign is that the tube aerator (9) is located at directly over port (2).
4. a kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system as claimed in claim 3, it is special Sign is, tube aerator (9) accumbency is internal in casing (1), its top apart from the distance of casing (1) bottom be less than every Distance of plate (5) lower edge apart from casing (1) bottom.