CN110217914B - Sewage purifying equipment - Google Patents
Sewage purifying equipment Download PDFInfo
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- CN110217914B CN110217914B CN201910589290.0A CN201910589290A CN110217914B CN 110217914 B CN110217914 B CN 110217914B CN 201910589290 A CN201910589290 A CN 201910589290A CN 110217914 B CN110217914 B CN 110217914B
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- hydraulic circulation
- settling chamber
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- 239000010865 sewage Substances 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 288
- 238000000746 purification Methods 0.000 claims abstract description 49
- 230000001376 precipitating effect Effects 0.000 claims abstract description 27
- 238000005352 clarification Methods 0.000 claims description 45
- 238000004062 sedimentation Methods 0.000 claims description 35
- 238000005189 flocculation Methods 0.000 claims description 20
- 230000016615 flocculation Effects 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000002351 wastewater Substances 0.000 claims description 14
- 230000001965 increasing effect Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 104
- 239000012535 impurity Substances 0.000 abstract description 86
- 239000007787 solid Substances 0.000 abstract description 86
- 230000000694 effects Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 13
- 238000000926 separation method Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 10
- 230000005484 gravity Effects 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
Abstract
The present invention provides a sewage purification apparatus comprising: the cyclone settling chamber, the hydraulic circulating clarifying chamber, the concentration settling chamber and the inclined tube settling chamber are sequentially communicated; the cyclone settling chamber is arranged below the hydraulic circulation clarifying chamber; the concentrating and precipitating chambers and the inclined tube precipitating chamber surround the hydraulic circulating clarifying chamber, and the inclined tube precipitating chamber is arranged above the concentrating and precipitating chamber. The invention relieves the technical problem of poor effect of removing solid particle impurities in turbid circulating water treatment equipment in the prior art.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to sewage purification equipment.
Background
In the steel industry, a turbid circulating water system of a traditional continuous casting and hot rolling production line generally adopts the following treatment process, slag flushing sewage from the production line enters a primary sedimentation tank or a cyclone tank by gravity flow, effluent is sent to a chemical dirt remover or a rare earth magnetic disk or a secondary sedimentation tank by a primary booster pump station, the effluent is sent to a cooling tower for cooling by a filter or directly by a secondary booster pump station, and is sent to the continuous casting or hot rolling production line for cleaning the surface of a product or cooling the product, and the produced slag flushing sewage is continuously circulated. The flushing sewage which is circulated continuously is also called turbid circulating water. In the circulation process, solid particle impurities in the turbid circulating water are removed so as to keep the water quality of the turbid circulating water flowing back to the continuous casting or hot rolling production line stable.
Generally, sewage purification processes such as coagulation, precipitation, clarification and the like are adopted to remove solid particle impurities in turbid circulating water. However, the turbid circulating water treatment equipment in the prior art has the technical problem of poor effect of removing solid particle impurities.
Disclosure of Invention
The invention aims to provide sewage purification equipment so as to solve the technical problem that the turbid circulating water treatment equipment in the prior art is poor in effect of removing solid particle impurities.
The above object of the present invention can be achieved by the following technical solutions:
the present invention provides a sewage purification apparatus comprising: the cyclone settling chamber, the hydraulic circulating clarifying chamber, the concentration settling chamber and the inclined tube settling chamber are sequentially communicated; the cyclone settling chamber is arranged below the hydraulic circulation clarifying chamber; the concentrating and precipitating chambers and the inclined tube precipitating chamber surround the hydraulic circulating clarifying chamber, and the inclined tube precipitating chamber is arranged above the concentrating and precipitating chamber.
In a preferred embodiment, the bottom wall of the hydraulic circulation clarifying chamber is provided with a clarifying chamber inlet, and the side wall of the hydraulic circulation clarifying chamber is provided with a clarifying chamber outlet; an annular sleeve extending along the vertical direction and provided with an upper opening and a lower opening is arranged in the hydraulic circulation clarifying chamber, a backflow gap is arranged between the lower end of the annular sleeve and the bottom wall of the hydraulic circulation clarifying chamber, and the opening of the lower end of the annular sleeve faces towards and covers the inlet of the clarifying chamber.
In a preferred embodiment, the clarifier outlet is provided in the bottom of the side wall of the hydraulic circulation clarifier.
In a preferred embodiment, the inner diameter of the opening at the lower end of the annular sleeve increases gradually in a top-down direction.
In a preferred embodiment, the upper end of the annular sleeve is connected with an expansion tube, the inner diameter of which increases gradually in the direction from bottom to top.
In a preferred embodiment, the upper end of the expansion tube is connected with a guide cylinder, and the inner diameter of the guide cylinder is consistent from the upper end to the lower end.
In a preferred embodiment, the method comprises: the water jet device comprises a water jet throat, wherein the lower end of the water jet throat is communicated with an inlet of a clarification chamber, an upward opening is formed in the upper end of the water jet throat, an annular sleeve surrounds the upper end of the water jet throat, fluid entering the inlet of the clarification chamber can flow into the annular sleeve upwards through the water jet throat, and a backflow channel is formed between the inner wall of the annular sleeve and the outer wall of the water jet throat.
In a preferred embodiment, the water jet device comprises a water jet nozzle arranged between the water jet throat pipe and the inlet of the clarifying chamber, wherein the lower end of the water jet nozzle is connected with the inlet of the clarifying chamber, the lower end of the water jet throat pipe is connected with the upper end of the water jet nozzle, and the inner diameter of the water jet nozzle gradually decreases from the lower end to the upper end.
In a preferred embodiment, the sewage purification device provided by the invention comprises an annular sleeve lifting mechanism for driving the annular sleeve to move up and down.
In a preferred embodiment, the annular sleeve lifting mechanism comprises a rotating shaft, a gear mounted on the rotating shaft and a rack mounted on the annular sleeve and arranged in the vertical direction, wherein the gear is meshed with the rack.
In a preferred embodiment, the method comprises: the annular steering plate is arranged in the hydraulic circulation clarifying chamber, and the outer contour of the annular steering plate is connected to the inner wall of the hydraulic circulation clarifying chamber; the clarifying chamber outlet is arranged between the annular steering plate and the bottom wall of the hydraulic circulation clarifying chamber.
In a preferred embodiment, the annular deflector plate is inclined downwardly from the outer contour to the inner contour.
In a preferred embodiment, the bottom wall of the hydraulic circulation clarification chamber comprises a bottom wall inclined part, the outer contour of the bottom wall inclined part is connected with the side wall of the hydraulic circulation clarification chamber, and the inner contour of the bottom wall inclined part is close to the central axis of the hydraulic circulation clarification chamber; the bottom wall inclined portion is inclined downward from the outer contour to the inner contour.
In a preferred embodiment, the annular deflector is inclined downwardly at an angle equal to the angle at which the bottom wall inclined portion is inclined downwardly.
In a preferred embodiment, the clarifying chamber outlet comprises a plurality of water delivery through holes, and two ends of each water delivery through hole are respectively communicated with the hydraulic circulating clarifying chamber and the concentrating and precipitating chamber.
In a preferred embodiment, the axis of each water delivery through hole is offset from the central axis of the hydraulic circulation clarifier in the same direction.
In a preferred embodiment, the axis of each water delivery through hole is inclined downward.
In a preferred embodiment, the method comprises: the water delivery pipes are connected to the water delivery through holes and extend into the concentration and precipitation chambers.
In a preferred embodiment, the side wall of the hydraulic circulation clarifier includes a side wall inclined portion that is located in the concentrate settling chamber and that is inclined inwardly from bottom to top.
In a preferred embodiment, the sewage purification device provided by the invention comprises a clear water collecting area arranged above the inclined tube settling chamber, and a liquid outlet at the upper end of the inclined tube settling chamber is communicated with the clear water collecting area.
In a preferred embodiment, the method comprises: the water collecting cylinder is arranged at the top of the clear water collecting area, and the side wall of the water collecting cylinder is provided with a water collecting through hole communicated with the clear water collecting area; and a water outlet pipe communicated with the inner cavity of the water receiving cylinder.
In a preferred embodiment, the top wall of the cyclone settling chamber is provided with a cyclone outlet communicated with the inlet of the clarification chamber; the top of the cyclone settling chamber is provided with a spiral guide plate which surrounds the axis of the cyclone outlet, the outer contour of the guide plate is contracted from outside to inside along the direction from top to bottom, and the center of the guide plate is provided with a guide channel which is communicated with the cyclone outlet from top to bottom; the top of the side wall of the cyclone settling chamber is provided with a cyclone inlet facing the guide plate.
In a preferred embodiment, the baffle is a conical helical blade with an outer diameter that decreases gradually from the upper end to the lower end.
In a preferred embodiment, the baffle extends in a vertical direction and is coiled in a spiral line in a horizontal plane, and the depth of the baffle extending downward in the vertical direction increases gradually from the outside to the inside.
In a preferred embodiment, the baffle plate comprises a baffle top plate arranged above the baffle plate, and the baffle plate extends upwards to the baffle top plate along the vertical direction.
In a preferred embodiment, a plurality of corrugated grooves are formed in the plate surface of the guide plate, and the plurality of corrugated grooves are distributed at intervals in the vertical direction.
In a preferred embodiment, the sewage purification device provided by the invention comprises a water flow injector communicated with the cyclone settling chamber, wherein the water flow injector is used for injecting sewage to be purified into the cyclone settling chamber.
In a preferred embodiment, the sewage purification device provided by the invention comprises a first sewage discharge pipe, wherein the first sewage discharge pipe is positioned below the hydraulic circulation clarification chamber and below the concentration sedimentation chamber; the bottom wall of the hydraulic circulation clarifying chamber is provided with a first sewage outlet communicated with the first sewage pipe; the bottom wall of the concentration and precipitation chamber is provided with a second sewage outlet communicated with the first sewage outlet.
In a preferred embodiment, the first drain communicates with the inlet of the water jet eductor.
In a preferred embodiment, the sewage purification device provided by the invention comprises a flocculation reaction chamber, wherein the flocculation reaction chamber is arranged in a diversion channel, the top opening of the flocculation reaction chamber is communicated with a cyclone outlet, and the bottom opening of the flocculation reaction chamber faces to the bottom wall of the cyclone settling chamber.
The invention has the characteristics and advantages that: the sewage purifying device provided by the invention integrates the cyclone settling chamber, the hydraulic circulating settling chamber, the concentrating settling chamber and the inclined tube settling chamber, and has the characteristics of compact structure and small occupied area. Turbid circulating water enters the cyclone settling chamber after being pressurized, and can move to a subsequent chamber by utilizing the residual pressure water head of the turbid circulating water, so that the pressurizing times and the power consumption are reduced. The turbid circulating water firstly separates solid particle impurities with larger particles in a cyclone settling chamber, then sequentially enters a hydraulic circulation clarifying chamber and a concentration settling chamber, so that the particle size of the solid particle impurities remained in the turbid circulating water is increased, further separation is realized, and then the turbid circulating water enters an inclined tube settling chamber to separate and remove the solid particle impurities with smaller particles. By adopting the step-by-step separation treatment process, solid particle impurities with larger particle sizes are removed firstly, then solid particle impurities with smaller particle sizes are removed, the stability of the purification effect is improved, and the quality of the purified turbid circulating water is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first embodiment of a sewage purification apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a second implementation manner of the sewage purifying apparatus provided in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a hydraulic circulation clarification chamber in a sewage purification apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the distribution of the projection of the water delivery through holes on a plane perpendicular to the central axis of the concentrating and precipitating chamber;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view of the structure of the water delivery through hole in the hydraulic circulation clarifier shown in FIG. 4 in the vertical direction;
FIG. 7 is a schematic view showing the construction of a cyclone settling chamber in the sewage purifying apparatus shown in FIG. 1;
FIG. 8 is a schematic view of the baffle in the cyclone settling chamber of FIG. 7 projected onto a plane perpendicular to the axis of the cyclone outlet;
FIG. 9 is a schematic view showing the construction of a cyclone settling chamber in the sewage purifying apparatus shown in FIG. 2;
FIG. 10 is a schematic view of the baffle in the cyclone settling chamber of FIG. 9 projected onto a plane perpendicular to the axis of the cyclone outlet;
fig. 11 is a schematic view of another embodiment of a baffle in the cyclone settling chamber shown in fig. 9.
Reference numerals illustrate:
01. a hydraulic circulation clarifying chamber; 011. a clarifier inlet; 012. a clarification chamber outlet; 0121. a water delivery through hole; 0122. a water pipe; 013. an annular steering plate; 014. a bottom wall inclined portion; 015. a side wall inclined portion;
02. an annular sleeve; 021. a reflow gap; 022. expanding the tube; 023. a guide cylinder; 024. conical honeycomb duct; 025. a return passage; 025', return channels;
031. a water jet throat; 032. a water jet nozzle;
04. an annular sleeve lifting mechanism;
05. concentrating and precipitating the room; 06. a chute precipitation chamber;
07. a clear water collection area; 071. a water receiving cylinder; 0711. a water receiving through hole; 072. a water outlet pipe; 073. an exhaust valve;
08. a cyclone settling chamber; 081. a swirl inlet; 082. a swirl outlet; 083. a sloping plate;
09. a deflector; 091. a diversion channel;
10. conical helical blades;
111. A spiral channel; 112. a diversion top plate; 113. a corrugated groove;
12. a first drain pipe; 121. a first annular tube; 122. a second annular tube; 123. a return branch pipe; 131. a first drain outlet; 132. a second drain outlet;
14. a water jet ejector; 141. a sludge inlet;
15. a flocculation reaction chamber; 151. an upper cylinder; 152. a lower cone;
16. a third annular tube; 161. a flushing water pipe; 171. a second drain pipe; 172. an evacuation tube;
181. a manhole; 182. a maintenance observation hole; 183. a safety valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, the present invention provides a sewage purification apparatus comprising: the cyclone settling chamber 08, the hydraulic circulation clarifying chamber 01, the concentration settling chamber 05 and the inclined tube settling chamber 06 are sequentially communicated; the cyclone settling chamber 08 is arranged below the hydraulic circulation clarifying chamber 01; the concentrating and precipitating chamber 05 and the inclined tube precipitating chamber 06 both surround the hydraulic circulating clarifying chamber 01, and the inclined tube precipitating chamber 06 is arranged above the concentrating and precipitating chamber 05.
The turbid circulating water enters the cyclone settling chamber 08, and forms cyclone in the cyclone settling chamber 08, wherein solid particle impurities are separated from the liquid part under the centrifugal action. Then, the waste water enters a hydraulic circulation clarifying chamber 01 from bottom to top, wherein residual solid particle impurities with smaller particle sizes are flocculated, and the particle sizes are gradually increased; in the process, the flocculated solid particle impurities are separated from the liquid under the influence of gravity and settle to the bottom wall of the hydraulic circulation clarifying chamber 01. Because the concentrating and settling chamber 05 surrounds the hydraulic circulating and settling chamber 01, turbid circulating water enters the concentrating and settling chamber 05 from the side wall of the hydraulic circulating and settling chamber 01, and the turbid circulating water continues to be separated from liquid in the process of moving in the concentrating and settling chamber 05, wherein residual solid particle impurities are settled towards the bottom of the concentrating and settling chamber 05. Turbid circulating water enters the inclined tube upwards from the concentrating and precipitating chamber 05, solid particle impurities are further separated and precipitated, the precipitated solid particle impurities fall into the concentrating and precipitating chamber 05 along the inclined tube and are precipitated to the bottom of the concentrating and precipitating chamber 05, and the precipitated solid particle impurities can be collected and treated at the bottom of the concentrating and precipitating chamber 05.
The sewage purifying device provided by the invention integrates the cyclone settling chamber 08, the hydraulic circulation settling chamber 01, the concentration settling chamber 05 and the inclined tube settling chamber 06, and has the characteristics of compact structure and small occupied area. The turbid circulating water enters the cyclone settling chamber 08 after being pressurized by the booster pump station, and flows to the subsequent chambers by utilizing the residual pressure water head of the turbid circulating water, so that the pressurizing times and the power consumption are reduced. The turbid circulating water firstly separates out solid particle impurities with larger particles in a cyclone settling chamber 08, then sequentially enters a hydraulic circulation settling chamber 01 and a concentration settling chamber 05, so that the particle size of the solid particle impurities remained in the turbid circulating water is increased, the solid particle impurities are further separated, and then enters an inclined tube settling chamber 06, and the solid particle impurities with smaller particles are separated and removed. By adopting the step-by-step separation treatment process, solid particle impurities with larger particle sizes are removed firstly, then solid particle impurities with smaller particle sizes are removed, so that the stability of the purification effect can be improved, and the quality of the purified turbid circulating water is ensured.
For ease of understanding, the respective chambers in the sewage purification apparatus will be described separately.
First, the construction of the hydraulic circulation clarifier will be described.
As shown in fig. 3, a clarification chamber inlet 011 is formed in the bottom wall of the hydraulic circulation clarification chamber 01, and a clarification chamber outlet 012 is formed in the side wall of the hydraulic circulation clarification chamber 01; an annular sleeve 02 which extends along the vertical direction and is provided with an upper opening and a lower opening is arranged in the hydraulic circulation clarifying chamber 01, a backflow gap 021 is arranged between the lower end of the annular sleeve 02 and the bottom wall of the hydraulic circulation clarifying chamber 01, and the opening of the lower end of the annular sleeve 02 faces to and covers the clarifying chamber inlet 011.
Turbid circulating water enters the annular sleeve 02 in the hydraulic circulation clarification chamber 01 from below to above through the clarification chamber inlet 011 and continues to flow upward in the annular sleeve 02. In the process of flowing up the turbid circulating water in the annular sleeve 02, solid particle impurities in the turbid circulating water flocculate, and the particle size is gradually increased.
Turbid circulating water flows out from the upper opening of the annular sleeve 02, collides with the top wall of the hydraulic circulation clarifying chamber 01, and turns to flow to clarifying chamber outlets 012 positioned at the periphery. In the process, the flocculated solid particle impurities are separated from the liquid under the influence of gravity and settle to the bottom wall of the hydraulic circulation clarifying chamber 01.
The pressure in the annulus 02 is small because of the water flow in the annulus 02 which is flowing upwards at a high velocity. Therefore, a part of turbid circulating water and a part of solid particle impurities settled on the bottom wall of the hydraulic circulation clarification chamber 01 can enter the annular sleeve 02 again through the backflow gap 021 under the action of pressure difference. Thus, the turbid circulating water can be circulated for multiple times for flocculation and sedimentation, and the solid particle impurities in the turbid circulating water can be separated. The solid particle impurities entering the annular sleeve 02 again can play a role of condensation, so that turbid circulating water is caused to flocculate in the annular sleeve 02, and the effect of removing the solid particle impurities is further improved.
The clarifying chamber outlet 012 is arranged on the side wall of the hydraulic circulation clarifying chamber 01, so that after turbid circulating water flows out from the upper end opening of the annular sleeve 02, the liquid part moves from the center to the periphery, and the flocculated solid particle impurities drop downwards due to the large self gravity, so that the solid particle impurities are conveniently separated from the liquid part. Preferably, the settling chamber outlet 012 is provided at the bottom of the side wall of the hydraulic circulation settling chamber 01 to lengthen the flow path of turbid circulating water and further improve the separation effect.
In one embodiment of the present invention, an expansion pipe 022 is connected to the upper end of the annular sleeve 02, and the inner diameter of the expansion pipe 022 gradually increases in the direction from bottom to top. Turbid circulating water flows upwards from the annular sleeve 02 into the expansion pipe 022, and the flow velocity of the turbid circulating water in the expansion pipe 022 is gradually reduced due to the fact that the cross section of the expansion pipe 022 is gradually increased, so that the turbid circulating water is flocculated.
Further, a guide cylinder 023 is connected to the upper end of the expansion pipe 022, and the inner diameter of the guide cylinder 023 is kept consistent from the upper end to the lower end. The turbid circulating water spreads outwards from the center when flowing in the expansion pipe 022; the turbid circulating water is collected through the guide cylinder 023, so that the turbid circulating water is sprayed out of the guide cylinder 023 along the vertical upward direction, the horizontal separation speed of the solid particle impurities in the turbid circulating water flowing in the hydraulic circulation clarifying chamber 01 after being sprayed out is reduced, and the downward sedimentation of the solid particle impurities is facilitated.
As shown in fig. 3, in an embodiment of the present invention, it includes: a water jet nozzle 032 and a water jet throat 031, the lower end of the water jet nozzle 032 is fixed on the inner wall of the hydraulic circulation clarifying chamber 01 and is communicated with the inlet 011 of the clarifying chamber; the lower end of the water jet throat 031 is connected to the water jet nozzle 032, the upper end is provided with an upward opening, and the upper end of the water jet throat 031 extends into the annular sleeve 02. Turbid circulating water entering an inlet 011 of the clarification chamber enters a water jet throat 031 through a water jet nozzle 032 and flows upwards into an annular sleeve 02 through an upper end opening of the water jet throat 031; and, the inner diameter of the annular sleeve 02 is larger than the outer diameter of the water jet throat 031, such that a return passage 025 is formed between the inner wall of the annular sleeve 02 and the outer wall of the water jet throat 031. Turbid circulating water is sprayed into the annular sleeve 02 through the water injector throat 031, so that the flow velocity of the turbid circulating water entering the annular sleeve 02 is increased, the pressure intensity in the annular sleeve 02 is reduced, and turbid circulating water and settled solid particle impurities thereof are convenient to flow back into the annular sleeve 02 through the backflow gap 021 and the backflow channel 025. Preferably, the inner diameter of the water injector nozzle 032 gradually decreases from the lower end to the upper end so that the flow rate of turbid circulating water in the water injector nozzle 032 gradually increases.
Further, a pipe line to which coagulant aid is added is connected to the water jet nozzle 032, and the coagulant aid flows into the water jet nozzle 032 through the pipe line and is mixed with turbid circulating water as the turbid circulating water flows through the water jet nozzle 032 and the water jet throat 031.
In one embodiment of the invention, the lower end of the annular sleeve 02 is provided with a conical flow guide tube 024, and the inner diameter of the conical flow guide tube 024 gradually increases along the direction from top to bottom, so that the inner diameter of an opening at the lower end of the annular sleeve 02 gradually increases along the direction from top to bottom, and turbid circulating water and solid particle impurities deposited on the bottom wall of the hydraulic circulation clarification chamber 01 can conveniently enter the annular sleeve 02. Moreover, when the outer diameter of the water injector nozzle 032 gradually decreases from the lower end to the upper end, the inner wall of the conical flow guide tube 024 is matched with the outer wall of the water injector nozzle 032 to form a backflow channel 025 'which inclines from the periphery to the upper center, and the backflow turbid circulating water and solid particle impurities enter the annular sleeve 02 along the backflow channel 025', so that the turbid circulating water and solid particle impurities can be converged and collide with the turbid circulating water sprayed from the water injector throat 031, and the mixing is facilitated.
In an embodiment of the present invention, referring to fig. 3, the sewage purifying apparatus includes an annular sleeve lifting mechanism 04, the annular sleeve lifting mechanism 04 is used for driving the annular sleeve 02 to move up and down, so as to control a distance L between a lower end surface of the annular sleeve 02 and a bottom wall of the hydraulic circulation clarification chamber 01, and adjust a size of a backflow gap 021, so as to adjust a backflow amount of turbid circulating water and solid particle impurities flowing back into the annular sleeve 02 through the backflow gap 021, and change a ratio between the backflow turbid circulating water and turbid circulating water fresh water sprayed from a water injector venturi 031. When the quality of turbid circulating water entering the hydraulic circulation clarification chamber 01 changes, or when the flow rate of turbid circulating water entering the hydraulic circulation clarification chamber 01 changes, the purification effect can be adjusted by adjusting the ratio so that the quality of turbid circulating water discharged from the clarification chamber outlet 012 is more stable.
In order to enable the annular sleeve 02 to move more stably relative to the hydraulic circulation clarifying chamber 01, a guide rod extending vertically downwards is fixed on the top wall of the hydraulic circulation clarifying chamber; the side wall of the annular sleeve 02 is fixed with a guide sleeve, and a guide rod is arranged in the guide sleeve in a penetrating way. The annular sleeve 02 is guided to move in the vertical direction by the guide rod. The structure of the annular sleeve lifting mechanism 04 is not limited to one, and in some embodiments, the annular sleeve lifting mechanism 04 includes a rotating shaft, a gear mounted to the rotating shaft, and a rack mounted to the annular sleeve 02 and disposed in a vertical direction, the gear being engaged with the rack. The rotating shaft extends out of the shell of the sewage purification equipment along the horizontal direction and can be driven manually by an operator; the rotating shaft is in sealing fit with the shell of the sewage purifying device.
Further, a position sensor is installed outside the annular sleeve lifting mechanism 04, the position of the annular sleeve 02 is monitored by the sensor, and the ratio between the back-flowing turbid circulating water and the turbid circulating water fresh water sprayed from the water injector throat 031 can be determined according to the position of the annular sleeve 02. Specifically, a position sensor is installed on the outer side of the annular sleeve 02, and detects the distance L between the lower end of the conical flow guide tube 024 and the bottom wall of the hydraulic circulation clarification chamber 01; and calculating the volume ratio value of the flow when the distance L takes different height values by using finite element simulation analysis software, and determining different flow ratios corresponding to different heights.
And analyzing flow ratio values of different distance L values by utilizing finite element fluid software, and determining a table of flow ratio values corresponding to the distance L values for inquiry, wherein different distance L corresponds to different flow ratio values. In actual operation, the distance L is determined, and the flow ratio can be determined. When the volume ratio value is more than 2:1, the flocculation sedimentation effect is better. Preferably, the volume ratio between the returned turbid circulating water and the turbid circulating water emerging from the water jet throat 031 is in the range of 2:1-8:1.
In one embodiment of the invention, an annular steering plate 013 is arranged in the hydraulic circulation settling chamber 01, and the outer contour of the annular steering plate 013 is connected to the inner wall of the hydraulic circulation settling chamber 01; the clarifier outlet 012 is provided between the annular deflector 013 and the bottom wall of the hydrologic cycle clarifier 01. Turbid circulating water flows out of the annular sleeve 02 and enters the hydraulic circulation clarifying chamber 01 to move downwards, on one hand, flocculated solid particle impurities collide with the annular steering plate 013 and can be attached to the annular steering plate 013, and the separation of the solid particle impurities from the turbid circulating water is facilitated; on the other hand, the clarifying chamber outlet 012 is located below the annular deflector 013, and the annular deflector 013 can change the flow path of turbid circulating water in the hydraulic circulation clarifying chamber 01, and the gravity of solid particle impurities is large, so that the solid particle impurities are influenced by the large gravity in the movement process, and the separation of the solid particle impurities from the liquid part is facilitated.
Further, the annular deflector 013 is inclined downward from the outer contour to the inner contour so that solid particulate impurities settled onto the annular deflector 013 slide down to the bottom of the hydraulic circulation settling chamber 01. In addition, solid particle impurities can be attached to the outer wall of the conical flow guide pipe 024, and the outer wall of the conical flow guide pipe 024 is inclined towards the outer side and the lower side, so that the solid particle impurities can be guided to slide down towards the bottom wall of the hydraulic circulation clarification chamber 01.
Further, the method comprises the steps of. Referring to fig. 3, the bottom wall of the hydraulic circulation settling chamber 01 includes a bottom wall inclined portion 014, the outer contour of the bottom wall inclined portion 014 is connected with the side wall of the hydraulic circulation settling chamber 01, and the inner contour of the bottom wall inclined portion 014 is close to the central axis of the hydraulic circulation settling chamber; the bottom wall inclined portion 014 is inclined downward from the outer contour to the inner contour. The bottom wall inclined portion 014 cooperates with the annular deflector 013 to form an inclined water flow path for introducing turbid circulating water into the settling chamber outlet 012, the turbid circulating water flowing upwardly along the water flow path to facilitate solid particulate impurity separation and settling. Preferably, the annular deflector 013 is inclined downward by an angle equal to the angle by which the bottom wall inclined portion 014 is inclined downward.
Next, the structure of the concentrating and precipitating chamber will be described, and how the concentrating and precipitating chamber is connected with the hydraulic circulation clarifying chamber.
As shown in fig. 1 and 2, the concentrating and settling chamber 05 surrounds the hydraulic circulation clarifying chamber 01, and a clarifying chamber outlet 012 is communicated with the concentrating and settling chamber 05; the bottom wall of the concentration and precipitation chamber 05 is connected with the bottom wall of the hydraulic circulation clarifying chamber 01; the concentrating settling chamber 05 is separated by a side wall of the hydraulic circulation settling chamber 01. The clarifier outlet 012 is near the bottom of the concentrating and settling chamber 05, and the top of the concentrating and settling chamber 05 is provided with an outlet. Turbid circulating water in the hydraulic circulation clarification chamber 01 enters the concentration sedimentation chamber 05 through the clarification chamber outlet 012 and moves to the outlet at the top. In the process of the turbid circulating water moving in the concentration and precipitation chamber 05, solid particle impurities are separated from the liquid part, and settle to the bottom of the concentration and precipitation chamber 05.
In one embodiment of the present invention, as shown in fig. 5 and 6, the settling chamber outlet 012 includes a plurality of water delivery through holes 0121 provided at a side wall of the hydraulic circulation settling chamber 01, and both ends of each water delivery through hole 0121 are respectively communicated with the hydraulic circulation settling chamber 01 and the concentration settling chamber 05. Through the water delivery through hole 0121, turbid circulating water enters the concentration and precipitation chamber 05 in a spray mode, so that solid particle impurities in the turbid circulating water are favorably collided and adsorbed on the inner wall of the concentration and precipitation chamber 05. Specifically, the plurality of water delivery through holes 0121 are at least distributed into two layers along the axis of the hydraulic circulation clarifying chamber 01; in the same layer, the water delivery through holes 0121 are circumferentially distributed around the central axis of the hydraulic circulation clarification chamber 01.
Further, the axis of the water delivery through hole 0121 is deviated from the central axis of the hydraulic circulation clarification chamber 01 in the same direction.
When the turbid circulating water is sprayed into the concentrating and settling chamber 05 along the axis of the water delivery through holes 0121, the turbid circulating water has a circumferential component speed, so that the turbid circulating water rotates in the concentrating and settling chamber 05 around the central axis of the hydraulic circulating and settling chamber 01, and the rotating directions of the turbid circulating water sprayed from the water delivery through holes are the same, so that the turbid circulating water forms a rotational flow in the concentrating and settling chamber 05. Under the centrifugal action, solid particle impurities can be separated from the liquid part, a part of the solid particle impurities can be settled to the bottom of the concentration and precipitation chamber 05 while rotating, and a part of the solid particle impurities can collide and be adsorbed to the inner wall outside the concentration and precipitation chamber 05 and gradually fall.
In this embodiment, the central axis of the concentrating and settling chamber 05 coincides with the central axis of the hydraulic circulation settling chamber 01. Referring to fig. 4 and 5, fig. 4 is a schematic distribution diagram of the projection of the water delivery through hole on a plane perpendicular to the central axis of the concentrating and settling chamber 05, in fig. 4, the inner wall of the hydraulic circulation settling chamber 01 is a circle, the axis of the water delivery through hole 0121 intersects with the circle, and an included angle β between a radius passing through the intersection and the axis of the water delivery through hole 0121 is an inclination angle β of the water delivery through hole 0121. Preferably, the inclination angles beta of the respective water delivery through holes 0121 are equal, and-55 DEG.ltoreq.beta.ltoreq.55 deg.
Further, the axis of each water delivery through hole 0121 is inclined downward. As shown in fig. 6, the included angle between the axis of the water delivery through hole 0121 and the horizontal plane is alpha. Because the opening of the concentrating and settling chamber 05 is arranged above, turbid circulating water is sprayed out of the water delivery through hole 0121, and enters the concentrating and settling chamber 05, then moves downwards firstly and then moves upwards in a turning way. The solid particle impurities have larger self gravity, are not easy to obtain upward kinetic energy of movement, collide with the bottom wall of the concentration and precipitation chamber 05 in the process and are adsorbed. Preferably, 15 DEG.ltoreq.alpha.ltoreq.45 deg.
Further, a water delivery pipe 0122 is connected to the water delivery through hole 0121, the water delivery pipe 0122 extends into the concentration and precipitation chamber 05, the axis of the water delivery pipe 0122 coincides with the axis of the water delivery through hole 0121, the water delivery pipe 0122 plays a role in guiding the movement of turbid circulating water, and the turbid circulating water is promoted to enter the concentration and precipitation chamber 05 along the axis of the water delivery through hole 0121.
Next, the structure of the inclined tube sedimentation chamber is described, and how the inclined tube sedimentation chamber, the concentration sedimentation chamber and the hydraulic circulation clarification chamber are connected.
As shown in fig. 1 and 2, the inclined tube sedimentation chamber 06 is disposed above the concentration sedimentation chamber 05, a plurality of inclined tubes are obliquely disposed in the inclined tube sedimentation chamber 06 side by side, the lower end opening of each inclined tube is communicated with the lower end liquid inlet of the inclined tube sedimentation chamber 06, and the upper end opening of each inclined tube is communicated with the upper end liquid outlet of the inclined tube sedimentation chamber 06. The liquid inlet at the lower end of the inclined tube sedimentation chamber 06 is communicated with the top of the concentration sedimentation chamber 05.
The cross section of the chute perpendicular to the chute axis may be circular or elliptical. Preferably, the cross section of the inclined tube perpendicular to the axis of the inclined tube is elliptical, which is beneficial to increasing the contact area of the tube wall and more beneficial to capturing particles.
The inclined tube can be a hollow tube; the inclined tube bundle is used as a filler inclined tube. The top welding of concentrated settling chamber 05 is connected with the pipe chute bracket, and the pipe chute bracket supports the pipe chute.
In some embodiments, the chute is formed from a plurality of segments connected by mortise slots. The lower part of the inclined tube bracket is connected with a plurality of guide grid plates which are in vertical plate shape, are positioned at the lower part of the inclined tube sedimentation chamber 06 and are arranged on the side wall of the concentration sedimentation chamber 05; the plurality of flow guiding grid plates are distributed along the horizontal circumference. The water flow guide grid plate can support the inclined tube bracket, is positioned on the upper portion of the concentration sedimentation chamber 05, can guide water flow in the concentration sedimentation chamber 05, enables the upper region in the concentration sedimentation chamber 05 to form stable ascending flow, eliminates the cyclone effect, improves the uniformity of water flow in the inclined tube, and is beneficial to keeping stable and uniform water flow in the inclined tube.
The turbid circulating water enters the inclined tube upwards from the concentrating and precipitating chamber 05, solid particle impurities are further separated and precipitated, and the precipitated solid particle impurities fall into the concentrating and precipitating chamber 05 along the inclined tube. In order to ensure that the inclined tube sedimentation chamber 06 has a better sedimentation effect, the included angle between the axis of each inclined tube and the horizontal line is 55-65 degrees; preferably, the angle between the axis of each inclined tube and the horizontal is 60 °.
In one embodiment of the invention, the side wall of the hydraulic circulation clarification chamber 01 comprises a side wall inclined part 015, the side wall inclined part 015 is positioned in the concentration sedimentation chamber 05, and the side wall inclined part 015 is inclined from bottom to top inwards, so that the cross-sectional area of the concentration sedimentation chamber 05 in the horizontal direction is gradually increased along the direction from bottom to top, thereby reducing the flow rate of turbid circulating water in the concentration sedimentation chamber 05, facilitating the sedimentation of solid particle impurities, enabling turbid circulating water to enter into a chute at a lower speed, improving the residence time of turbid circulating water in the chute and the utilization rate of the chute, and enhancing the sedimentation effect.
The inclined tube settling chamber 06 is annular and surrounds the hydraulic circulation settling chamber 01, and the inclined tube settling chamber 06 is separated from the hydraulic circulation settling chamber 01 through the side wall of the hydraulic circulation settling chamber 01, so that the space is saved, and the size of the sewage purification equipment in the vertical direction is reduced.
Further, the sewage purification equipment provided by the invention further comprises a clear water collecting area 07, wherein the clear water collecting area 07 is arranged above the inclined tube settling chamber 06, and a liquid outlet at the upper end of the inclined tube settling chamber 06 is communicated with the clear water collecting area 07. Turbid circulating water flows upwards to the clear water collecting area 07 through the inclined tube and is stored in the clear water collecting area 07 so as to be discharged outwards for circulation.
The top of the clean water collecting area 07 is provided with a water collecting cylinder 071, and the side wall of the water collecting cylinder 071 is provided with a water collecting through hole 0711 communicated with the clean water collecting area 07; the water receiving cylinder 071 is connected with a water outlet pipe 072, and after the turbid circulating water in the clear water collecting area 07 reaches the height of the water receiving through hole 0711, the turbid circulating water enters the water receiving cylinder 071 through the water receiving through hole 0711 and is directly sent to the pressure filter or cooling tower by using surplus water pressure through the water outlet pipe 072. Preferably, the water receiving cylinder 071 has a funnel-shaped structure, and the plurality of water receiving through holes 0711 are distributed on the tapered side wall of the funnel-shaped structure to increase the uniformity of the water flow. In some embodiments, a vent valve 073 is connected to the water receiving cylinder 071, and the air pressure in the water receiving cylinder 071 is reduced by the vent valve 073, so that turbid circulating water enters the water receiving cylinder 071.
Next, the structure of the cyclone settling chamber is described, and how the cyclone settling chamber, the concentration settling chamber and the hydraulic circulation clarification chamber are connected.
The cyclone settling chamber 08 is arranged below the hydraulic circulation settling chamber 01, is separated from the hydraulic circulation settling chamber 01 by the bottom wall of the hydraulic circulation settling chamber 01, and is separated from the concentration settling chamber 05 by the bottom wall of the concentration settling chamber 05. The top wall of the cyclone settling chamber 08 is provided with a cyclone outlet 082 communicated with a clarifying chamber inlet 011; the top in the cyclone settling chamber 08 is provided with a spiral guide plate 09, the guide plate 09 surrounds the axis of the cyclone outlet 082, the outer contour of the guide plate 09 is contracted from outside to inside along the direction from top to bottom, and the center of the guide plate 09 is provided with a guide channel 091 which is communicated with the cyclone outlet 082 and runs through from top to bottom; the top of the side wall of the cyclone settling chamber 08 is provided with a cyclone inlet 081 towards the baffle 09.
Turbid circulating water enters the cyclone settling chamber 08 through the cyclone inlet 081 and flows towards the flow guide plate 09; under the action of the self initial speed, self gravity and the guide plate 09, the turbid circulating water rotates along the guide plate 09 from top to bottom around the axis of the rotational flow outlet 082, and the parallel flow is opened at the lower end of the guide flow channel 091; enters the diversion channel 091 and moves upward through the swirl outlet 082 into the settling chamber inlet 011. In the process of rotating the turbid circulating water in the cyclone settling chamber 08, solid particle impurities in the turbid circulating water are separated from a liquid part under the centrifugal action.
In one embodiment of the present invention, as shown in fig. 7 and 8, the baffle 09 is a tapered helical blade 10 having an outer diameter gradually decreasing from the upper end to the lower end. The turbid circulating water ejected from the cyclone inlet 081 tends to flow through the lower end opening of the diversion passage 091 located at the center of the cyclone settling chamber 08, and the tapered spiral vane 10 guides the flow path of the turbid circulating water, so that the turbid circulating water forms a stable cyclone in the cyclone settling chamber 08. Solid particle impurities in turbid circulating water are separated from the liquid part under the centrifugal action, collide and are adsorbed on the side wall of the cyclone settling chamber 08, and gradually drop to the bottom of the cyclone settling chamber 08.
The outer diameter of the swirling flow formed under the guidance of the conical helical blade 10 is gradually reduced, and the self weight of the solid particle impurities is larger, so that the solid particle impurities are more easily separated from the liquid part under the centrifugal action.
As another embodiment, referring to fig. 9-11, the baffle 09 extends in a vertical direction and is spirally wound in a horizontal plane, and the depth of the baffle 09 extending downward in the vertical direction gradually increases from outside to inside. The lower edge of the baffle 09 constitutes the outer contour of the baffle 09 and is contracted from the outside to the inside in the top-down direction. Fig. 10 is a schematic view of the structure of the baffle projected on a plane perpendicular to the axis of the swirl outlet, in fig. 10, a spiral channel 111 is formed in the baffle 09. Turbid circulating water enters the spiral channel 111 from the upper end, rotates around the axis of the swirl outlet 082 in the spiral channel 111 under the action of the guide plate 09, and simultaneously moves downwards to the lower end opening of the guide channel 091 to form swirl; the turbid circulating water in the cyclone settling chamber 08 also forms a cyclone by the swirling flow in the spiral passage 111. When the turbid circulating water is subjected to cyclone, solid particle impurities are separated from the liquid part under the centrifugal action, collide and are adsorbed on the side wall of the guide plate 09 and the inner wall of the cyclone settling chamber 08, and gradually drop to the bottom of the cyclone settling chamber 08.
Further, as shown in fig. 11, a top baffle 112 is disposed above the baffle 09, the baffle 09 extends upward to the top baffle 112 along the vertical direction, the top of the spiral channel 111 is closed by the top baffle 112, so as to avoid the turbid circulating water in the spiral channel 111 from overflowing upward, and promote the turbid circulating water to flow downward along the spiral channel 111, thereby being beneficial to separating solid particles and impurities.
In order to make solid particle impurities better absorbed by the baffle 09 when the solid particle impurities collide with the baffle 09, the inventor further optimizes the baffle 09, as shown in fig. 11, a plurality of corrugated grooves 113 are arranged on the surface of the baffle 09, and the plurality of corrugated grooves 113 are distributed at intervals along the vertical direction, so that on one hand, the contact area of the baffle 09 with turbid circulating water is increased by arranging the corrugated grooves 113, and on the other hand, the solid particle impurities are more convenient to stay and gather on the baffle 09.
The above description of the specific embodiment of the baffle 09 is followed by a description of other structural modifications of the cyclone settling chamber 08.
As shown in fig. 7 and 9, the bottom of the cyclone settling chamber 08 is tapered, and the horizontal section is gradually reduced from top to bottom so that settled solid particle impurities move along the inner wall to the center of the bottom and are convenient to discharge. A gap is arranged between the guide plate 09 and the inner wall of the cyclone settling chamber 08 so as to facilitate the settling of solid particle impurities.
Further, the sewage purification apparatus includes a water flow ejector 14 provided at the swirling flow inlet 081, the water flow ejector 14 being for ejecting sewage to be purified toward the baffle 09. By means of the water jet 14, turbid circulating water can be introduced into the cyclone settling chamber 08 at a high speed, so that solid particle impurities are separated from the liquid part under the centrifugal action.
In order to facilitate the discharge of solid particle impurities at the bottom of the concentration and precipitation chamber 05 and solid particle impurities at the bottom of the hydraulic circulation clarification chamber 01, the sewage purification device comprises a first sewage discharge pipe 12, wherein the first sewage discharge pipe 12 is positioned below the hydraulic circulation clarification chamber 01 and below the concentration and precipitation chamber 05; the bottom wall of the hydraulic circulation clarifying chamber 01 is provided with a first sewage outlet 131 communicated with the first sewage pipe 12; the bottom wall of the concentrating and settling chamber 05 is provided with a second sewage outlet 132 communicated with the first sewage pipe 12. Specifically, the first sewage drain pipe 12 includes a sewage drain pipe, a first annular pipe 121 located below the hydraulic circulation settling chamber 01, and a second annular pipe 122 located below the concentration settling chamber 05, the sewage drain pipe is communicated with the first annular pipe 121 and is communicated with the second annular pipe 122, the first annular pipe 121 is communicated with the first sewage drain 131 through a sewage drain branch pipe, and the second annular pipe 122 is communicated with the second sewage drain 132 through a sewage drain branch pipe. The sewage pipeline is provided with a valve, and solid particle impurities are discharged by periodically opening the valve.
Preferably, at least 2 first sewage outlets 131 are symmetrically arranged on the hydraulic circulation clarifying chamber 01, and at least 2 second sewage outlets 132 are symmetrically arranged on the concentration sedimentation chamber 05.
Preferably, the axis of the first sewage outlet 131 is opened along the vertical direction, and the distance K between the axis of the first sewage outlet 131 and the central axis of the hydraulic circulation clarification chamber 01 is not less than 200mm, so as to ensure that solid particle impurities are accumulated in the bottom center of the hydraulic circulation clarification chamber 01, and to provide backflow of the solid particle impurities into the annular sleeve 02.
In some embodiments, the first drain 12 communicates with an inlet of the water jet eductor 14. Specifically, the inlet end of the water jet ejector 14 is provided with a sludge inlet 141, and the first drain pipe 12 communicates with the sludge inlet 141 through the return branch pipe 123. The solid particle impurities in the first sewage draining pipe 12 can directly enter the water flow ejector 14 through the backflow branch pipe 123, so that the backflow efficiency of the solid particle impurities is improved, and the additional external pressurizing equipment can be avoided. The solid particulate impurities are mixed with the turbid circulating water by the turbid circulating water in the water jet 14, and are crushed by the impact of the water flow, so that the particles become small. The solid particle impurities flowing back into the cyclone settling chamber 08 through the water flow ejector 14 can play a role of condensation nucleus, promote the solid particle impurities in turbid circulating water to be condensed together, and facilitate separation and clarification, thereby reducing the addition amount of chemical reagents such as coagulant aid and the like. Preferably, the axis of the return branch pipe 123 is inclined in the spraying direction of the water flow sprayer 14 from the end near the first sewage pipe 12 to the end near the water flow sprayer 14 so that the solid particle impurities in the first sewage pipe 12 enter the water flow sprayer 14 and are finely pulverized.
In order to facilitate the discharge of sludge in the cyclone settling chamber 08, the bottom of the cyclone settling chamber 08 is provided with a second sewage drain 171. The second drain pipe 171 is provided with a valve through which deposited sludge can be periodically discharged. Preferably, as shown in fig. 7, an inclined plate 083 is arranged at the bottom of the inner cavity of the cyclone settling chamber 08 and is used for bearing sludge, and a sludge inlet of the second sewage draining pipe 171 is arranged above the inclined plate 083. In some embodiments, the bottom of the cyclone settling chamber 08 is further provided with an evacuation pipe 172, and the evacuation pipe 172 is provided with an evacuation valve.
Further, the sewage purification device comprises a flocculation reaction chamber 15, the flocculation reaction chamber 15 is arranged in the diversion channel 091, the top opening of the flocculation reaction chamber 15 is communicated with the cyclone outlet 082, and the bottom opening faces to the bottom wall of the cyclone settling chamber 08. As shown in fig. 7 and 9, the flocculation reaction chamber 15 includes an upper cylinder 151 and a lower cone 152, wherein the upper end of the upper cylinder 151 is fixed on the top wall of the cyclone settling chamber 08 and is communicated with a cyclone outlet 082, the upper end of the lower cone 152 is connected to the lower end of the upper cylinder 151, and the inner diameter of the lower cone 152 is gradually increased from top to bottom; the axis of the upper cylinder 151 and the axis of the lower cone 152 are coincident with the axis of the swirl outlet 082. The upper part of the inner cavity of the upper cylinder 151 and the lower part of the inner cavity of the lower cone 152 are respectively provided with a sieve plate or a pore plate, and a plurality of hollow spherical flocculation reactors are arranged in the space between the upper sieve plate or the pore plate and the lower sieve plate or the pore plate; the screen plate or the orifice plate is detachable so as to facilitate the replacement of the hollow sphere flocculation reactor. The baffle 09 is fixedly arranged on the outer wall of the upper cylinder and the outer wall of the lower cone.
Turbid circulating water in the cyclone settling chamber 08 moves downwards along the guide plate 09, enters the lower cone 152 and the upper cone 151 from the lower end opening of the lower cone 152, flows through the hollow spherical flocculation reactor and performs flocculation reaction, so that the particle size of solid particle impurities is increased; discharged through the upper end opening of the upper cylinder 151 and flows into the hydrologic cycle settling chamber 01 through the cyclone outlet 082 and settling chamber inlet 011.
The sewage purifying device provided by the invention integrates the cyclone settling chamber 08, the flocculation reaction chamber 15, the hydraulic circulation clarifying chamber 01, the concentration settling chamber 05, the inclined tube settling chamber 06 and the clear water collecting area 07, and has the characteristics of compact structure and small occupied area. The turbid circulating water enters the cyclone settling chamber 08 after being pressurized by the booster pump station, and flows towards the subsequent purifying treatment chamber and the clear water collecting area by utilizing the residual pressure water head of the turbid circulating water, so that the pressurizing times and the power consumption are reduced. The turbid circulating water firstly separates solid particle impurities with larger particles in a cyclone settling chamber 08, and then passes through a flocculation reaction chamber 15 to increase the particle size of the solid particle impurities remained in the turbid circulating water so as to facilitate separation; the turbid circulating water discharged from the flocculation reaction chamber 15 sequentially enters the hydraulic circulation clarifying chamber 01 and the concentration sedimentation chamber 05 to further separate solid particle impurities, and then enters the inclined tube sedimentation chamber 06 to separate and remove solid particle impurities with smaller particles. By adopting the step-by-step separation treatment process, solid particle impurities with larger particle sizes are removed firstly, then solid particle impurities with smaller particle sizes are removed, so that the stability of the purification effect can be improved, and the quality of the purified turbid circulating water is ensured.
In order to facilitate flushing of the internal cavity in the cyclone settling chamber 08, a third annular pipe 16 is arranged in the cyclone settling chamber 08, and a plurality of water outlets are arranged on the pipe wall of the third annular pipe 16; the third annular pipe 16 is connected with an external water supply pipeline through a flushing pipe 161, and water entering the third annular pipe 16 is sprayed into the cyclone settling chamber 08 through a water outlet on the pipe wall, so that flushing is realized.
For the convenience of maintenance and the safe and stable operation of guarantee equipment, be equipped with the manhole 181 respectively at the lateral wall of whirl settling chamber 08, the lateral wall top of hydrologic cycle clarification chamber 01 and the roof of clear water collection district 07, be equipped with the inspection hole 182 at the lateral wall of concentrated settling chamber 05, the roof of clear water collection district 07 is equipped with the relief valve 183 with clear water collection district 07 intercommunication.
The foregoing is merely a few embodiments of the present invention and those skilled in the art may make various modifications or alterations to the embodiments of the present invention in light of the disclosure herein without departing from the spirit and scope of the invention.
Claims (22)
1. A sewage purification apparatus, comprising: the cyclone settling chamber, the hydraulic circulating clarifying chamber, the concentration settling chamber and the inclined tube settling chamber are sequentially communicated;
the cyclone settling chamber is arranged below the hydraulic circulation clarifying chamber;
The concentrating and precipitating chamber and the inclined tube precipitating chamber both surround the hydraulic circulating clarifying chamber, and the inclined tube precipitating chamber is arranged above the concentrating and precipitating chamber;
the bottom wall of the hydraulic circulation clarifying chamber is provided with a clarifying chamber inlet, and the side wall of the hydraulic circulation clarifying chamber is provided with a clarifying chamber outlet;
an annular sleeve extending along the vertical direction and provided with an upper opening and a lower opening is arranged in the hydraulic circulation clarifying chamber, a backflow gap is arranged between the lower end of the annular sleeve and the bottom wall of the hydraulic circulation clarifying chamber, and the opening of the lower end of the annular sleeve faces to and covers the inlet of the clarifying chamber;
the clarifying chamber outlet is arranged at the bottom of the side wall of the hydraulic circulation clarifying chamber;
the sewage purification apparatus includes: the annular steering plate is arranged in the hydraulic circulation clarifying chamber, and the outer contour of the annular steering plate is connected to the inner wall of the hydraulic circulation clarifying chamber; the clarifying chamber outlet is arranged between the annular steering plate and the bottom wall of the hydraulic circulation clarifying chamber;
the bottom wall of the hydraulic circulation clarification chamber comprises a bottom wall inclined part, the outer contour of the bottom wall inclined part is connected with the side wall of the hydraulic circulation clarification chamber, and the inner contour of the bottom wall inclined part is close to the central axis of the hydraulic circulation clarification chamber; the bottom wall inclined part is inclined downwards from the outer outline to the inner outline;
The outlet of the clarifying chamber comprises a plurality of water delivery through holes, and two ends of each water delivery through hole are respectively communicated with the hydraulic circulation clarifying chamber and the concentration sedimentation chamber;
the side wall of the hydraulic circulation clarification chamber comprises a side wall inclined part, the side wall inclined part is positioned in the concentration sedimentation chamber, and the side wall inclined part is inclined inwards from bottom to top.
2. The sewage purification apparatus according to claim 1, wherein an expansion pipe is connected to an upper end of the annular sleeve, and an inner diameter of the expansion pipe is gradually increased in a direction from bottom to top.
3. The sewage purification apparatus according to claim 2, wherein a guide cylinder is connected to an upper end of the expansion pipe, and an inner diameter of the guide cylinder is maintained to be uniform from an upper end to a lower end.
4. The sewage purification apparatus according to claim 1, comprising: the water jet device comprises a water jet throat, wherein the lower end of the water jet throat is communicated with an inlet of a clarification chamber, an upward opening is formed in the upper end of the water jet throat, an annular sleeve surrounds the upper end of the water jet throat, fluid entering the inlet of the clarification chamber can flow into the annular sleeve upward through the water jet throat, and a backflow channel is formed between the inner wall of the annular sleeve and the outer wall of the water jet throat.
5. The wastewater purification apparatus of claim 4, comprising a water jet nozzle disposed between the water jet throat and the clarifier inlet, wherein a lower end of the water jet nozzle is connected to the clarifier inlet, wherein a lower end of the water jet throat is connected to an upper end of the water jet nozzle, and wherein an inner diameter of the water jet nozzle gradually decreases from the lower end to the upper end.
6. The sewage purification apparatus according to claim 1, wherein the inner diameter of the opening at the lower end of the annular sleeve gradually increases in a direction from the top down.
7. The sewage purification apparatus according to claim 1, wherein the sewage purification apparatus comprises an annular sleeve lifting mechanism for driving the annular sleeve to move up and down.
8. The sewage purification apparatus of claim 1, wherein the annular deflector is downwardly sloped from an outer profile to an inner profile.
9. The wastewater purification apparatus of claim 1, wherein the axis of each of the water delivery through holes is offset from the central axis of the hydraulic circulation settling chamber in the same direction.
10. The sewage purification apparatus of claim 9, wherein an axis of each of the water delivery through holes is inclined downward.
11. The sewage purification apparatus according to any one of claims 1 to 10, comprising: the water delivery pipes are connected to the water delivery through holes and extend into the concentration and precipitation chambers.
12. The wastewater purification apparatus of claim 1, wherein the wastewater purification apparatus comprises a clean water collection zone disposed above the inclined tube settling chamber, and an upper liquid outlet of the inclined tube settling chamber is in communication with the clean water collection zone.
13. The sewage purification apparatus according to claim 12, comprising:
the water collecting barrel is arranged at the top of the clear water collecting area, and a water collecting through hole communicated with the clear water collecting area is arranged on the side wall of the water collecting barrel;
and the water outlet pipe is communicated with the inner cavity of the water receiving cylinder.
14. The wastewater purification apparatus of claim 1, wherein a top wall of the cyclone settling chamber is provided with a cyclone outlet in communication with the settling chamber inlet;
the top in the cyclone settling chamber is provided with a spiral guide plate, the guide plate surrounds the axis of the cyclone outlet, the outer contour of the guide plate is contracted from outside to inside along the direction from top to bottom, and the center of the guide plate is provided with a guide channel which is communicated with the cyclone outlet from top to bottom;
The top of the side wall of the cyclone settling chamber is provided with a cyclone inlet facing the guide plate.
15. The wastewater purification apparatus of claim 14, wherein the baffle is a tapered helical blade having an outer diameter that gradually decreases from an upper end to a lower end.
16. The wastewater purification apparatus of claim 14, wherein the baffle extends in a vertical direction and is coiled along a helix in a horizontal plane; and the depth of the guide plate extending downwards along the vertical direction gradually increases from outside to inside.
17. The wastewater purification apparatus of claim 16, comprising a deflector ceiling disposed above the deflector, the deflector extending vertically upward to the deflector ceiling.
18. The sewage purification apparatus of claim 16, wherein a plurality of corrugation grooves are provided on a plate surface of the baffle plate, and the plurality of corrugation grooves are spaced apart in a vertical direction.
19. The apparatus according to any one of claims 1-10 or 12-14, characterized in that the apparatus comprises a water jet ejector in communication with the cyclone settling chamber for ejecting the sewage to be purified into the cyclone settling chamber.
20. The wastewater purification apparatus of claim 19, wherein the wastewater purification apparatus comprises a first wastewater discharge pipe positioned below the hydraulic circulation clarification chamber and below the concentration sedimentation chamber;
the bottom wall of the hydraulic circulation clarifying chamber is provided with a first sewage outlet communicated with the first sewage pipe;
the bottom wall of the concentration and precipitation chamber is provided with a second sewage outlet communicated with the first sewage outlet.
21. The wastewater purification apparatus of claim 20, wherein the first drain communicates with an inlet of the water flow ejector.
22. The wastewater purification apparatus of claim 14, comprising a flocculation reaction chamber disposed in the diversion channel, wherein a top opening of the flocculation reaction chamber is in communication with the cyclone outlet and a bottom opening is oriented toward a bottom wall of the cyclone settling chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589290.0A CN110217914B (en) | 2019-07-02 | 2019-07-02 | Sewage purifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589290.0A CN110217914B (en) | 2019-07-02 | 2019-07-02 | Sewage purifying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110217914A CN110217914A (en) | 2019-09-10 |
| CN110217914B true CN110217914B (en) | 2024-02-09 |
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| CN111632409B (en) * | 2020-05-12 | 2022-11-08 | 中建三局绿色产业投资有限公司 | Venturi inner member for sedimentation tank |
| CN111617521B (en) * | 2020-05-12 | 2021-08-24 | 四川发展环境科学技术研究院有限公司 | High-efficient sedimentation tank |
| JP7055308B1 (en) | 2021-05-14 | 2022-04-18 | Jms株式会社 | Dental treatment wastewater treatment system and its wastewater treatment method |
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| CN210796005U (en) * | 2019-07-02 | 2020-06-19 | 中冶京诚工程技术有限公司 | Sewage purification equipment |
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