CN110655274A

CN110655274A - Three-phase fluidized bed for sewage treatment

Info

Publication number: CN110655274A
Application number: CN201910913292.0A
Authority: CN
Inventors: 曾新凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-01-07

Abstract

The invention relates to the field of sewage treatment equipment, and discloses a three-phase fluidized bed for sewage treatment, which comprises a separator tube body, a flow isolating tube, a three-phase separator, an exhaust pipe, a water inlet pipe, a gas inlet pipe and a blow-off pipe, wherein the flow isolating tube is fixedly arranged in the middle of an inner cavity of the separator tube body, the top end of the flow isolating tube is fixedly sleeved with the bottom of the three-phase separator, and the three-phase separator is arranged at the top of the inner cavity of the separator tube body. This three-phase fluidized bed for sewage treatment through the design that separates the inside inlet tube department that is located of flow tube, utilizes the power drive spiral auger that the intake pipe admitted air to rotate, separates the interior fluid of flow tube and upwells under spiral auger rotation action for the fluid in separating the flow tube has overcome self gravity and resistance and has kept the state of upwelling, and the effectual efficiency that guarantees to separate the interior chamber fluid of flow tube and lift ensures that the effective reaction area of fluid keeps great state, thereby makes the treatment effect of three-phase fluidized bed good.

Description

Three-phase fluidized bed for sewage treatment

Technical Field

The invention relates to the field of sewage treatment equipment, in particular to a three-phase fluidized bed for sewage treatment.

Background

A three-phase fluidized bed is a three-phase separation device commonly used in the field of sewage treatment, also called as an air flow power fluidized bed, sewage and air synchronously enter a bed body, and under the action of air flow, gas, liquid and solid (biomembrane carrier three phases are stirred and contacted, and generate rising flow to a treatment bed circulating in the bed body, in the process, a degradation reaction of organic pollutants is generated, because strong friction is generated between carriers, a biomembrane is timely fallen off, and no membrane separation device is needed to be additionally arranged, the specific working principle is as follows (refer to figure 4), sewage is injected through a water inlet pipe 5, meanwhile, air is introduced through an air inlet pipe 6, under the action of air, the sewage flows upwards in an inner cavity of a flow isolating pipe 2, and generates a corresponding reaction during rising flow, the sewage is separated by a three-phase separator at the top, silt-containing fluid falls from the outside of the flow isolating pipe 2 and enters from the bottom of the flow isolating pipe 2 again for multiple treatment, to ensure more thorough treatment.

However, when the existing three-phase fluidized bed works, the sewage entering the flow isolating pipe needs to overcome self gravity and upper sewage resistance when rising, so that the efficiency of rising flow of the sewage is reduced, the treatment efficiency is reduced, the treatment effect of the three-phase fluidized bed is also reduced easily due to the outlet and backflow phenomena of partial sewage, and when the fluid enters from the bottom of the flow isolating pipe 2 again, a large amount of sludge is contained, the rising sludge occupies the space of the inner cavity of the flow isolating pipe 2, the further treatment capacity of the sewage is influenced, and the efficiency of treating the sewage by the three-phase fluidized bed is reduced.

Disclosure of Invention

The invention provides a three-phase fluidized bed for sewage treatment, which has the advantages of high treatment efficiency and good effect and solves the technical problems mentioned in the background technology.

A three-phase fluidized bed for sewage treatment comprises a separator tube body, a flow isolating tube, a three-phase separator, an exhaust pipe, a water inlet pipe, an air inlet pipe and a blow-off pipe, wherein the flow isolating tube is fixedly arranged in the middle of an inner cavity of the separator tube body, the top end of the flow isolating tube is fixedly sleeved with the bottom of the three-phase separator, the three-phase separator is arranged at the top of the inner cavity of the separator tube body, the exhaust pipe positioned on the three-phase separator is fixedly arranged at the top end of the inner cavity of the separator tube body, a water outlet is formed in the top of the inner cavity of the separator tube body, a positioning tube sleeve is arranged at the bottom of the inner cavity of the separator tube body, a gas distribution plate is arranged inside the positioning tube sleeve, the gas distribution plate is communicated with one end of the air inlet pipe, the other end of the air inlet pipe extends to the, the side of the flow isolating pipe is communicated with a water inlet pipe, the other end of the water inlet pipe extends to the outside of the separator pipe body, an impeller positioned right above the gas flow dividing plate is fixedly sleeved at the bottom end of the rotating shaft, and a vent hole positioned outside the rotating shaft is formed in the top of the positioning pipe sleeve.

Preferably, the bottom in separate flow tube inner chamber is equipped with the spiral arch that is located the inlet tube below, and spiral arch degree by supreme increase down, the inlet tube is located the fourth of separate flow tube bottom, and the inlet tube is located the middle part of spiral auger.

Preferably, the outer part of the exhaust pipe is fixedly sleeved with a filter screen, and the filter screen is positioned below the water outlet.

Preferably, the outer side of the positioning pipe sleeve is not in contact with the inner wall of the separator pipe body, a sewage discharge pipe is communicated with one side of the bottom of the separator pipe body, and a certain gap is reserved between the positioning pipe sleeve and the flow isolating pipe.

The invention has the following beneficial effects:

according to the three-phase fluidized bed for sewage treatment, through the design that the inside of the flow isolating pipe is positioned at the water inlet pipe, the spiral auger is driven to rotate by utilizing the power of air inlet of the air inlet pipe, and fluid in the flow isolating pipe upwells under the rotating action of the spiral auger, so that the fluid in the flow isolating pipe overcomes the self gravity and resistance to keep an upwelling state, the efficiency of lifting the fluid in the inner cavity of the flow isolating pipe is effectively ensured, the effective reaction area of the fluid is ensured to be kept in a larger state, and the treatment effect of the three-phase fluidized bed is good; meanwhile, an upward surge negative pressure is formed at the bottom of the isolation pipe, and the fluid flowing down from the bottom of the separator pipe body is sucked, so that the fluid flowing down is continuously treated, the fluid is ensured to be treated more thoroughly, and the treatment efficiency is further improved; and the spiral bulge on the inner wall of the flow isolating pipe is utilized to form a spiral separation structure, so that sludge in the fluid which is moved upwards again is separated and falls down, the thorough fluid treatment is ensured, the volume of a flow elevating action area in the inner cavity of the flow isolating pipe cannot be occupied by mixed sludge, and the sewage treatment efficiency is further improved.

Drawings

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

FIG. 2 is a schematic view of the flow-blocking tube of the structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the positioning sleeve of the structure of FIG. 1 according to the present invention;

FIG. 4 is a schematic structural diagram of a conventional three-phase fluidized bed.

In the figure: 1. a separator tube; 101. a water outlet; 102. a filter screen; 2. an isolation tube; 3. a three-phase separator; 4. an exhaust pipe; 5. a water inlet pipe; 6. an air inlet pipe; 7. a blow-off pipe; 8. a positioning pipe sleeve; 801. a gas splitter plate; 802. a rotating shaft; 803. an impeller; 804. spiral auger.

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.

Please refer to fig. 1-3, a three-phase fluidized bed for sewage treatment, comprising a separator tube 1, a flow isolating tube 2, a three-phase separator 3, an exhaust pipe 4, a water inlet pipe 5, an air inlet pipe 6 and a sewage discharge pipe 7, wherein the flow isolating tube 2 is fixedly arranged in the middle of an inner cavity of the separator tube 1, the top end of the flow isolating tube 2 is fixedly sleeved with the bottom of the three-phase separator 3, the three-phase separator 3 is arranged at the top of the inner cavity of the separator tube 1, the exhaust pipe 4 positioned on the three-phase separator 3 is fixedly arranged at the top end of the inner cavity of the separator tube 1, a filter screen 102 is fixedly sleeved outside the exhaust pipe 4, the filter screen 102 is used for filtering impurities such as sludge in water, and a water outlet 101 positioned.

A sewage discharge pipe 7 is fixedly installed at the bottommost part of the separator tube body 1, impurities such as separated sludge and the like are discharged through the sewage discharge pipe 7, a positioning tube sleeve 8 positioned above the sewage discharge pipe 7 is fixedly installed at the bottom of an inner cavity of the separator tube body 1, a gas distribution plate 801 is arranged at the bottom of the inner cavity of the positioning tube sleeve 8, a gas inlet pipe 6 is fixedly sleeved on the side surface of the gas distribution plate 801, one end of the gas inlet pipe 6 extends to the outside of the separator tube body 1, a rotating shaft 802 is movably sleeved at the middle part of the top end of the positioning tube sleeve 8, a spiral auger 804 is fixedly sleeved at the top end of the rotating shaft 802 and extends to the inside of the flow separation tube 2, an impeller 803 positioned above the gas distribution plate 801 is fixedly sleeved at the bottom end of the rotating shaft 802, gas is introduced into the separator tube body 1 from the gas inlet pipe 6 and is applied with, and then the spiral auger 804 in the interior of the isolation tube 2 is driven to rotate, and the pressure provided by the air inlet pipe 6 during air inlet drives the spiral auger to rotate so as to promote the fluid in the interior of the isolation tube 2 to flow upwards.

The side surface of the flow isolating pipe 2 is fixedly sleeved with a water inlet pipe 5, the water inlet pipe 5 is positioned at one fourth of the bottom of the flow isolating pipe 2, one end of the water inlet pipe 5, which is far away from the flow isolating pipe 2, extends to the outside of the separator pipe body 1, the water inlet pipe 5 is positioned in the middle of the spiral auger 804, the inner wall of the flow isolating pipe 2 is provided with a spiral bulge positioned below the water inlet pipe 5, the spiral bulge degree is increased from bottom to top, sewage is injected into the flow isolating pipe 2 through the water inlet pipe 5, the spiral auger 804 inside the flow isolating pipe 2 rotates, fluid in the flow isolating pipe 2 upwells under the rotating action of the spiral auger 804, so that the fluid entering the flow isolating pipe 2 overcomes the self gravity and the resistance to keep the upwelling state, the efficiency of fluid lifting in the inner cavity of the flow isolating pipe 2 is effectively ensured, the effective reaction area of the, the bottom of the flow isolating pipe 2 forms upward surge negative pressure, and the fluid falling from the bottom of the separator pipe body 1 is sucked, so that the falling fluid can be continuously treated, the fluid treatment is ensured to be more thorough, the treatment efficiency is further improved, a spiral separation structure is formed by the spiral protrusions on the inner wall of the flow isolating pipe 2, the sludge in the fluid which is moved upwards again is separated and falls, the fluid is ensured to be treated completely, meanwhile, the volume of an upward flow action area of the inner cavity of the flow isolating pipe 2 cannot be occupied by mixed sludge, and the treatment efficiency of the three-phase fluidized bed is further improved.

When the device is used, sewage is input through the water inlet pipe 5, meanwhile, gas is introduced through the gas inlet pipe 6, the introduced gas acts on the impeller 803 to enable the rotating shaft 802 to drive the spiral auger to rotate, the gas flows upwards into the flow isolating pipe 2 to be mixed with the sewage, the gas flows upwards to the three-phase separator 3 under the rotation of the spiral auger 804, the gas is fully mixed and reacted in the flow isolating pipe 2 and then enters the three-phase separator 3 to separate solid, liquid and gas in mixed fluid, the gas is discharged through the gas exhaust pipe 4, a large amount of liquid water is secondarily filtered through the filter screen 102 and discharged through the water outlet 101, fluid containing a large amount of silt settles downwards outside the flow isolating pipe 2 and enters the bottom of the flow isolating pipe 2 again to be further treated, and finally the silt is discharged through the sewage discharge pipe 7.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 three-phase fluidized bed for sewage treatment, including separator body (1), separate flow tube (2), three-phase separator (3), blast pipe (4), inlet tube (5), intake pipe (6) and blow off pipe (7), separate flow tube (2) fixed mounting is at the middle part of separator body (1) inner chamber, the top of separate flow tube (2) is fixed cup joints with the bottom of three-phase separator (3), the top at separator body (1) inner chamber is installed in three-phase separator (3), the top fixed mounting of separator body (1) inner chamber has blast pipe (4) that are located three-phase separator (3), its characterized in that: the water outlet (101) is formed in the top of the inner cavity of the separator tube body (1), the bottom of the inner cavity of the separator tube body (1) is provided with a positioning tube sleeve (8), a gas splitter plate (801) is arranged inside the positioning tube sleeve (8), the gas splitter plate (801) is communicated with one end of the gas inlet tube (6), the other end of the gas inlet tube (6) extends to the outside of the separator tube body (1), a rotating shaft (802) is movably sleeved in the middle of the top end of the positioning tube sleeve (8), a spiral auger (804) is fixedly sleeved in the inner part of the rotating shaft (802) extending to the flow isolating tube (2), a water inlet tube (5) is communicated with the side surface of the flow isolating tube (2), the other end of the water inlet tube (5) extends to the outside of the separator tube body (1), and an impeller (803) located right above the gas splitter plate (801) is fixedly sleeved at the, the top of the positioning pipe sleeve (8) is provided with a vent hole positioned on the outer side of the rotating shaft (802).

2. A three-phase fluidized bed for sewage treatment according to claim 1, characterized in that: the bottom in flow-isolating pipe (2) inner chamber is equipped with the spiral that is located inlet tube (5) below and protrudingly degree of spiral is by supreme increase down, inlet tube (5) are located the fourth of flow-isolating pipe (2) bottom, and inlet tube (5) are located the middle part of spiral auger (804).

3. A three-phase fluidized bed for sewage treatment according to claim 1, characterized in that: a filter screen (102) is fixedly sleeved outside the exhaust pipe (4), and the filter screen (102) is located below the water outlet (101).

4. A three-phase fluidized bed for sewage treatment according to claim 1, characterized in that: the outer side of the positioning pipe sleeve (8) is not in contact with the inner wall of the separator pipe body (1), a sewage discharge pipe (7) is communicated with one side of the bottom of the separator pipe body (1), and a certain gap is reserved between the positioning pipe sleeve (8) and the flow isolating pipe (2).