CN110743247A - Sewage sand settling device - Google Patents
Sewage sand settling device Download PDFInfo
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- CN110743247A CN110743247A CN201911254140.0A CN201911254140A CN110743247A CN 110743247 A CN110743247 A CN 110743247A CN 201911254140 A CN201911254140 A CN 201911254140A CN 110743247 A CN110743247 A CN 110743247A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
Abstract
The invention discloses a sewage sand settling device, which comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first flood dragon roller, a first motor, a second sand settling tank, a second flood dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe, wherein a straight pipeline is communicated with the middle part of a spiral pipeline and is in sealed connection with the spiral pipeline, the spiral pipeline reduces the downstream speed of sewage and sand stones and is beneficial to the sedimentation of sand stones in the spiral pipeline, the spiral pipeline is connected with the straight pipeline, when the sewage and the sand stones flow through a connector, the sand stones enter the straight pipeline due to the reason of high density and low speed, and most of the sewage continuously flows through the connector due to inertia so as to improve the separation efficiency of the sand stones and the sewage; the first grit chamber collects most grit, discharges the grit of sediment through first flood dragon roller, and is more convenient simple than using traditional excavation method to handle the grit, and it is laborsaving to save trouble, and the treatment effeciency also obtains improving.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage sand settling device.
Background
China is a country with shortage of everyone water resources and is listed as one of thirteen water-poor countries in the world. With the advance of industrialization and urbanization in China, the increasingly serious water pollution not only reduces the use function of water bodies and further aggravates the contradiction of water resource shortage, but also brings serious influence on the sustainable development strategy being implemented in China, and seriously threatens the drinking water safety and the health of people of urban residents, so that the purification treatment of sewage is the development requirement of people in the future.
The sewage treatment is a process for making sewage meet the water quality requirement of draining a certain water body or reusing the sewage and purifying the sewage, but in the existing sewage treatment process, the sand setting treatment process is simple, the process that sand setting needs to wait for the sewage to be static is very long, the sand setting efficiency is low, and the traditional excavation method is very troublesome in sand setting treatment, time-consuming and labor-consuming and the like.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the sewage sand settling device, the gravity flow divider is used for separating settled sand, the sand settling speed is accelerated, the process of waiting for the sewage to be static is avoided, the sand settling efficiency is improved, the flood dragon rollers are used for discharging sand stones at the bottom of the sand settling tank, compared with the traditional excavation method, the method for treating the settled sand is more convenient and simpler, labor and time are saved, and the treatment efficiency is also improved, so that the problems are solved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is smaller than that of the second grit chamber 2025 times; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
The gravity flow divider comprises a water collecting funnel, a spiral pipeline and a straight pipeline; the spiral pipeline is welded with the water receiving funnel; the straight pipeline is communicated with the middle of the spiral pipeline and is in sealing connection with the spiral pipeline, the spiral pipeline reduces the down-flow speed of sewage and sand, sand and stone can be precipitated in the spiral pipeline, the spiral pipeline is connected with the straight pipeline, when the sewage and the sand flow through the connector, the sand and stone enter the straight pipeline due to the fact that the density is high and the speed is low, most of sewage continuously stays in the spiral pipeline due to the fact that inertia rushes through the connector, and therefore the separation efficiency of the sand and the sewage is improved.
The first grit chamber comprises a first tank body, a water outlet, a first sand collecting groove, a first sealing door, a first mounting hole and a first sand outlet; the water outlet is arranged at the upper part of the first tank body; the first sand collecting tank is built at the bottom of the first tank body; the first sealing door is fixed on the outer side of the first sand collecting groove through a door shaft and corresponds to the first sand outlet; first mounting hole and first sand outlet set up in first sand collecting tank both sides, the setting of delivery port, the vast majority grit is collected in first grit chamber, discharges the grit chamber through first flood dragon roller to the grit that deposits, compares and uses traditional excavation method to handle the grit, convenient simple more, it is laborsaving to save trouble, treatment effeciency also obtains improving.
The second grit chamber comprises a second tank body, a water inlet, a support arm, a second sand collecting groove, a second sealing door, a second mounting hole and a second sand outlet; the water inlet is arranged above the second grit chamber and is connected with the water outlet through a cement pipeline; 4 support arms are built, and are arranged below the second tank body in a central symmetry manner; the second sand collecting tank is built at the bottom of the second tank body; the second sealing door is fixed on the outer side of the second sand collecting groove through a door shaft and corresponds to the second sand outlet; second mounting hole and second sand outlet set up in second sand trap both sides, the second grit chamber only collects a small amount of grit, the majority is the sewage of separating, the sewage that gets into first grit chamber entering is collected to the water inlet, avoids waiting for the static process of sewage, improves sand setting efficiency.
The water suction pipe comprises a cross pipe, a filter pipe and a central pipe; the filter tubes are arranged on the cross-shaped tube in an average penetrating manner; the concentrated pipe run through the setting at "ten" word pipe center, and be located the dorsal part of chimney filter, the chimney filter on average sets up on "ten" word pipe, when the sludge pump draws water, under the unchangeable circumstances of sludge pump power, absorbs water comprehensively through the chimney filter, the local water velocity of sewage of reduction has avoided the grit to take water the condition of the too big reentrant sewage of speed because of drawing water, takes sewage out to do further purification under the steady circumstances of water, improves sewage purification efficiency.
(III) advantageous effects
The invention provides a sewage sand settling device. The method has the following beneficial effects:
1. according to the invention, the spiral pipe reduces the down-flow speed of sewage and sand, sand and stone are favorably precipitated in the spiral pipe, the spiral pipeline is connected with the straight pipeline, when the sewage and the sand flow through the joint, the sand and stone enter the straight pipeline due to the reasons of high density and low speed, most sewage continuously stays in the spiral pipeline due to inertia flushing the joint, and thus the separation efficiency of the sand and the sewage is improved;
2. according to the invention, the first grit chamber collects most of the gravel, the settled gravel is discharged out of the grit chamber through the first flood dragon roller, and compared with the method for treating the grit by using the traditional excavation method, the method is more convenient and simpler, saves trouble and labor, and improves the treatment efficiency;
3. according to the invention, only a small amount of sand is collected in the second grit chamber, most of the sand is separated sewage, and the water inlet collects the sewage entering the first grit chamber, so that the process of waiting for the sewage to stand is avoided, and the sand settling efficiency is improved;
4. according to the invention, the filter pipes are averagely arranged on the cross pipes, when the sludge pump pumps water, under the condition that the power of the sludge pump is not changed, the filter pipes absorb water comprehensively, the local water flow speed of the sewage is reduced, the condition that sand and stone enter the sewage again due to overlarge water pumping speed is avoided, the sewage is pumped out for further purification under the condition that the water body is stable, and the sewage purification efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the gravity flow diverter of the present invention;
FIG. 3 is a schematic structural view of a first grit chamber according to the present invention;
FIG. 4 is a schematic structural view of a second grit chamber of the present invention;
FIG. 5 is a schematic view of the barrel of the present invention.
In the figure: 1-a fixed frame, 2-a gravity flow divider, 21-a water collecting funnel, 22-a spiral pipeline, 23-a straight pipeline, 3-a first grit chamber, 31-a first tank body, 32-a water outlet, 33-a first sand collecting tank, 34-a first sealing door, 35-a first mounting hole, 36-a first sand outlet, 4-a first flood dragon roller, 5-a first motor, 6-a second grit chamber, 61-a second tank body, 62-a water inlet, 63-a support arm, 64-a second sand collecting tank, 65-a second sealing door, 66-a second mounting hole, 67-a second sand outlet, 7-a second flood dragon roller, 8-a second motor, 9-a distribution box, 10-a sludge pump, 121-a cross pipe, 122-a filter pipe and 123-a concentration pipe, 11-cement pipeline, 12-suction pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 5, the present invention provides a technical solution: a sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is 20-25 times smaller than that of the second grit chamber; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
Example 2
A sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is 20-25 times smaller than that of the second grit chamber; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
Preferably, the spiral pipeline is welded with the water receiving funnel; the straight pipeline is communicated with the middle of the spiral pipeline and is in sealing connection with the spiral pipeline, the spiral pipeline reduces the down-flow speed of sewage and sand, sand and stone can be precipitated in the spiral pipeline, the spiral pipeline is connected with the straight pipeline, when the sewage and the sand flow through the connector, the sand and stone enter the straight pipeline due to the fact that the density is high and the speed is low, most of sewage continuously stays in the spiral pipeline due to the fact that inertia rushes through the connector, and therefore the separation efficiency of the sand and the sewage is improved.
Example 3
A sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is 20-25 times smaller than that of the second grit chamber; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
Preferably, the first grit chamber comprises a first chamber body, a water outlet, a first sand collecting tank, a first sealing door, a first mounting hole and a first sand outlet; the water outlet is arranged at the upper part of the first tank body; the first sand collecting tank is built at the bottom of the first tank body; the first sealing door is fixed on the outer side of the first sand collecting groove through a door shaft and corresponds to the first sand outlet; first mounting hole and first sand outlet set up in first sand collecting tank both sides, the setting of delivery port, the vast majority grit is collected in first grit chamber, discharges the grit chamber through first flood dragon roller to the grit that deposits, compares and uses traditional excavation method to handle the grit, convenient simple more, it is laborsaving to save trouble, treatment effeciency also obtains improving.
Example 4
A sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is 20-25 times smaller than that of the second grit chamber; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
Preferably, the second grit chamber comprises a second chamber body, a water inlet, a support arm, a second sand collecting tank, a second sealing door, a second mounting hole and a second sand outlet; the water inlet is arranged above the second grit chamber and is connected with the water outlet through a cement pipeline; 4 support arms are built, and are arranged below the second tank body in a central symmetry manner; the second sand collecting tank is built at the bottom of the second tank body; the second sealing door is fixed on the outer side of the second sand collecting groove through a door shaft and corresponds to the second sand outlet; second mounting hole and second sand outlet set up in second sand trap both sides, the second grit chamber only collects a small amount of grit, the majority is the sewage of separating, the sewage that gets into first grit chamber entering is collected to the water inlet, avoids waiting for the static process of sewage, improves sand setting efficiency.
Example 5
A sewage sand settling device comprises a fixing frame, a gravity flow divider, a first sand settling tank, a first dragon roller, a first motor, a second sand settling tank, a second dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe; the fixing frame is arranged on one side of the first grit chamber; the gravity flow divider is fixed inside the fixing frame through bolts, the straight pipeline extends into the first grit chamber and is lower than the water outlet, and the spiral pipeline is positioned above the second grit chamber; the volume of the first grit chamber is 20-25 times smaller than that of the second grit chamber; the first flood dragon roller is arranged in the first sand collecting groove through the first mounting hole; the first motor is connected with the first flood dragon roller through a coupler and is connected with the distribution box through a wire; the second flood dragon roller is arranged in the second sand collecting groove through the second mounting hole; the second motor is connected with the second flood dragon roller through a coupler and is connected with the distribution box through a wire; the sludge pump is connected with the centralized pipe of the water suction pipe through a water pipe and is connected with the distribution box through a lead; the water suction pipe is bound on the support arm through an iron chain.
Preferably, the suction pipe comprises a cross pipe, a filter pipe and a central pipe; the filter tubes are arranged on the cross-shaped tube in an average penetrating manner; the concentrated pipe run through the setting at "ten" word pipe center, and be located the dorsal part of chimney filter, the chimney filter on average sets up on "ten" word pipe, when the sludge pump draws water, under the unchangeable circumstances of sludge pump power, absorbs water comprehensively through the chimney filter, the local water velocity of sewage of reduction has avoided the grit to take water the condition of the too big reentrant sewage of speed because of drawing water, takes sewage out to do further purification under the steady circumstances of water, improves sewage purification efficiency.
Example 6
When the sewage and gravel separation device is used, a sewage and gravel mixture passes through the gravity flow divider 2, the downward flow speed of the sewage and gravel is reduced under the buffering of the spiral pipeline 22, gravel is favorably precipitated in the spiral pipeline 22, the spiral pipeline 22 is connected with the straight pipeline 23, when the sewage and gravel flow through the joint, the gravel enters the straight pipeline 23 due to high density and low speed, most of the sewage continuously stays in the spiral pipeline 22 due to inertia and finally flows into the second grit chamber 6 through the pipe orifice, so that the gravel and sewage separation efficiency is improved, the first grit chamber 3 collects most of the gravel, the precipitated gravel is discharged out of the grit chamber through the first flood dragon roller 4, compared with the traditional excavation method for treating the grit, the sewage and gravel separation device is more convenient and simpler, saves trouble and labor, improves the treatment efficiency, the second grit chamber 6 only collects a small amount of gravel, and most of the separated sewage, the sewage that gets into first grit chamber 3 entering is collected to water inlet 62, avoid waiting for the static process of sewage, improve sand setting efficiency, filter tube 122 sets up on average on "cross" pipe 121, when sludge pump 10 draws water, under the unchangeable condition of sludge pump 10 power, absorb water comprehensively through filter tube 122, the local water velocity of sewage of reduction, avoided the grit to get into the condition of sewage once more because of the pumping speed is too big, take sewage out under the steady condition of water and do further purification, improve sewage purification efficiency.
In conclusion, the sewage sand settling device can be obtained, by arranging the sewage sand settling device comprising a fixing frame, a gravity flow divider, a first sand settling tank, a first flood dragon roller, a first motor, a second sand settling tank, a second flood dragon roller, a second motor, a distribution box, a sludge pump, a cement pipeline and a water suction pipe, wherein a sewage and sand mixture passes through the gravity flow divider 2, the downward flowing speed of the sewage and sand is reduced under the buffering of a spiral pipeline 22, sand is favorably settled in the spiral pipeline 22, the spiral pipeline 22 is connected with a straight pipeline 23, when the sewage and sand flow through a connector, the sand enters the straight pipeline 23 due to high density and low speed, most of the sewage continuously flows through the connector due to inertia, stays in the spiral pipeline 22 and finally flows into the second sand settling tank 6 through a pipe opening, so that the sand and sewage separation efficiency is improved, the first sand settling tank 3 collects most of the sand, the settled sand is discharged out of the sand settling tank through the first flood dragon roller 4, compared with the traditional excavation method for treating settled sand, the method is more convenient and simpler, saves trouble and labor, improves the treatment efficiency, averagely arranges the filter pipes 122 on the cross pipes 121, and when the sludge pump 10 pumps water, the filter pipes 122 absorb water comprehensively under the condition that the power of the sludge pump 10 is not changed, reduces the local water flow speed of sewage, and avoids the condition that sand enters the sewage again due to the overlarge pumping speed.
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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (5)
1. The utility model provides a sewage sand setting device which characterized in that: the sewage sand settling device comprises a fixing frame (1), a gravity flow divider (2), a first sand settling tank (3), a first flood dragon roller (4), a first motor (5), a second sand settling tank (6), a second flood dragon roller (7), a second motor (8), a distribution box (9), a sludge pump (10), a cement pipeline (11) and a water suction pipe (12); the fixing frame (1) is arranged on one side of the first grit chamber (3); the gravity flow divider (2) is fixed inside the fixed frame (1) through bolts, the straight pipeline (23) extends into the first grit chamber (3) and is lower than the water outlet (32), and the spiral pipeline (22) is positioned above the second grit chamber (6); the volume of the first grit chamber (3) is 20-25 times smaller than that of the second grit chamber (6); the first flood dragon roller (4) is arranged in the first sand collecting groove (33) through a first mounting hole (35); the first motor (5) is connected with the first flood dragon roller (4) through a coupler and is connected with the distribution box (9) through a wire; the second flood dragon roller (7) is arranged in the second sand collecting groove (64) through a second mounting hole (66); the second motor (8) is connected with the second flood dragon roller (7) through a coupler and is connected with the distribution box (9) through a wire; the sludge pump (10) is connected with a concentration pipe (123) of the water suction pipe (12) through a water pipe and is connected with the distribution box (9) through a lead; the water suction pipe (12) is bound on the support arm (63) through an iron chain.
2. The sewage sand settling device according to claim 1, wherein: the gravity flow divider (2) comprises a water collecting funnel (21), a spiral pipeline (22) and a straight pipeline (23); the spiral pipeline (22) is welded with the water receiving funnel (21); the straight pipeline (23) is communicated with the middle part of the spiral pipeline (22) and is connected with the spiral pipeline in a sealing way.
3. The sewage sand settling device according to claim 2, wherein: the first grit chamber (3) comprises a first chamber body (31), a water outlet (32), a first sand tank (33), a first sealing door (34), a first mounting hole (35) and a first sand outlet (36); the water outlet (32) is arranged at the upper part of the first tank body (31); the first sand collecting tank (33) is built at the bottom of the first tank body (31); the first sealing door (34) is fixed on the outer side of the first sand collecting groove (33) through a door shaft and corresponds to the first sand outlet (36); the first mounting hole (35) and the first sand outlet (36) are arranged on two sides of the first sand collecting groove (33).
4. The sewage sand settling device according to claim 3, wherein: the second grit chamber (6) comprises a second chamber body (61), a water inlet (62), a support arm (63), a second sand collecting groove (64), a second sealing door (65), a second mounting hole (66) and a second sand outlet (67); the water inlet (62) is arranged above the second grit chamber (6) and is connected with the water outlet (32) through a cement pipeline (11); 4 support arms (63) are built, and are arranged below the second tank body (61) in a central symmetry manner; the second sand collecting tank (64) is built at the bottom of the second tank body (61); the second sealing door (65) is fixed on the outer side of the second sand collecting groove (64) through a door shaft and corresponds to the second sand outlet (67); and the second mounting hole (66) and the second sand outlet (67) are arranged on two sides of the second sand collecting groove (64).
5. The sewage sand settling device according to claim 1, wherein: the suction pipe (12) comprises a cross pipe (121), a filter pipe (102) and a collecting pipe (123); the filter tubes (102) are arranged on the cross-shaped tube (121) in a penetrating way on average; the concentration pipe (123) penetrates through the center of the cross pipe (121) and is positioned on the back side of the filter pipe (102).
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| CN201911254140.0A CN110743247A (en) | 2019-12-07 | 2019-12-07 | Sewage sand settling device |
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| CN201911254140.0A CN110743247A (en) | 2019-12-07 | 2019-12-07 | Sewage sand settling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754168A (en) * | 2021-09-26 | 2021-12-07 | 上海市计量测试技术研究院 | Low-concentration wastewater enhanced evaporation device and method with efficient energy utilization |
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