CN113060811B - Chemistry experiment room sewage flocculation treatment device - Google Patents
Chemistry experiment room sewage flocculation treatment device Download PDFInfo
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- CN113060811B CN113060811B CN202110347419.4A CN202110347419A CN113060811B CN 113060811 B CN113060811 B CN 113060811B CN 202110347419 A CN202110347419 A CN 202110347419A CN 113060811 B CN113060811 B CN 113060811B
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- sewage
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- 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
- C02F1/5281—Installations for water purification using chemical agents
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- 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
- C02F1/5209—Regulation methods for flocculation or precipitation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a chemical laboratory sewage flocculation treatment device, which comprises a flocculation reactor, a sewage inlet pipe, a sewage distributor, a flocculant storage device, a powder sprayer and a flocculant distributor, wherein the sewage inlet pipe is connected with the sewage distributor; the water outlet end of the sewage inlet pipe is in fluid communication connection with the water inlet end of the sewage distributor, the sewage distributor is arranged on the sealing cover of the flocculation reactor, and the water outlet end of the sewage distributor is in fluid communication with the inside of the flocculation reactor; the flocculating agent storage is in fluid communication connection with the powder spray head, the powder spray head nozzle is arranged in the flocculation reactor, and the powder spray head is arranged on the side wall of the flocculation reactor close to the sealing cover; the flocculating agent distributor is arranged in the flocculation reactor below the powder spray nozzle and above the liquid level in the flocculation reactor. The invention solves the problem that the continuous growth of floccules is not influenced while the dispersion degree of the flocculating agent in the sewage is ensured, and reduces or eliminates the influence of the stirring action on the continuous growth of the floccules.
Description
Technical Field
The invention relates to the technical field of sewage treatment. In particular to a chemical laboratory sewage flocculation treatment device.
Background
In the sewage treatment process, a flocculating agent is often added for flocculation and sedimentation, and the flocculation and sedimentation effect of the flocculating agent is usually verified in a laboratory. However, when the flocculation settling experiment is performed on sewage in a laboratory, the problem that the flocculant is not uniformly dispersed and floccules are broken and broken due to poor control of a machine handle during stirring and speed reduction can be easily caused. Therefore, how to improve the dispersion degree of the flocculant in the sewage without influencing the growth of floccules becomes a problem to be considered by laboratory personnel. However, under the pressure of research, laboratory personnel often have no time to solve the problem from the equipment, and basically rely on experience to control the stirring speed and the stirring intensity.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a sewage flocculation treatment device for a chemical laboratory, which does not influence the continuous growth of floccules while ensuring the dispersion degree of a flocculating agent in sewage, and reduces or eliminates the influence of stirring action on the continuous growth of the floccules.
In order to solve the technical problems, the invention provides the following technical scheme:
a chemical laboratory sewage flocculation treatment device comprises a flocculation reactor, a sewage inlet pipe, a sewage distributor, a flocculant storage, a powder spray head and a flocculant distributor; the water outlet end of the sewage inlet pipe is in fluid communication connection with the water inlet end of the sewage distributor, the sewage distributor is installed on the flocculation reactor sealing cover, and the water outlet end of the sewage distributor is in fluid communication with the inside of the flocculation reactor; the flocculant storage is in fluid communication connection with the powder sprayer, the powder sprayer nozzle is arranged in the flocculation reactor, and the powder sprayer is arranged on the side wall of the flocculation reactor close to the sealing cover; the flocculating agent distributor is arranged in the flocculation reactor below the powder spray nozzle and above the liquid level in the flocculation reactor; when a flocculation sedimentation experiment is carried out, the powder spray head sprays the flocculating agent stored in the flocculating agent storage device into the flocculation reactor, a part of the flocculating agent falls on the flocculating agent distributor, and then the flocculating agent on the flocculating agent distributor is flushed into sewage below the flocculating agent distributor by sewage flowing out of the sewage distributor.
In the chemical laboratory sewage flocculation treatment device, the included angle between the spraying direction of the powder spray head and the side wall of the flocculation reactor is 30-70 degrees.
The chemical laboratory sewage flocculation treatment device comprises the annular members and the rod-shaped connecting pieces, wherein the annular members with different inner diameters larger than or equal to 3 are coaxially assembled into the disc-shaped members through the rod-shaped connecting pieces, and a gap for a flocculating agent or sewage to pass through is formed between every two adjacent annular members.
Above-mentioned chemistry experiment room sewage flocculation treatment device, the flocculating agent distributor includes annular member and member, annular member inboard parallel arrangement have different length member and adjacent two be equipped with the clearance that supplies flocculating agent or sewage to pass through between the member.
In the chemical laboratory sewage flocculation treatment device, the flocculant distributor is made of a base material with bulges on the surface, and the distance between every two adjacent bulges is 2-7 mm; the flocculating agent distributor is arranged on a supporting block arranged on the inner wall of the flocculation reactor.
According to the chemical laboratory sewage flocculation treatment device, the flocculant distributor is made of the base material with the grooves formed in the surface, and the distance between every two adjacent grooves is 2-7 mm.
In the chemical laboratory sewage flocculation treatment device, the flow guide holes in the distribution plate of the sewage distributor are stepped holes.
Above-mentioned chemistry experiment room sewage flocculation treatment device, the shoulder hole includes one-level hole, second grade hole and tertiary hole, the one-level hole the second grade hole with tertiary hole is the bell mouth.
According to the chemical laboratory sewage flocculation treatment device, the flaring end of the primary hole is coaxially connected with the flaring end of the secondary hole, and the necking end of the secondary hole is coaxially connected with the necking end of the tertiary hole.
According to the chemical laboratory sewage flocculation treatment device, the hole walls of the first-level holes, the second-level holes and the third-level holes are provided with communicated diversion trenches.
The technical scheme of the invention achieves the following beneficial technical effects:
1. through the combined use of the sewage distributor and the flocculating agent distributor, the dispersion degree of the flocculating agent in the sewage can be improved, and the stirring of the sewage can be cancelled, so that the influence of the stirring effect on the continuous growth of the floccules is eliminated.
2. The spraying of the flocculating agent and the water inlet are carried out at intervals, so that the dispersion degree of the flocculating agent in the sewage can be effectively improved, and the effect similar to violent stirring can be achieved.
3. When sewage flows into the flocculation reactor through the stepped hole with the diversion trench, the distribution of the sewage flowing out of the stepped hole is more dispersed than that of the sewage flowing out of the conventional flow hole.
Drawings
FIG. 1 is a schematic structural view of a flocculation treatment device for chemical laboratory sewage according to the present invention;
FIG. 2 is a schematic structural diagram of a flocculant distributor of the chemical laboratory sewage flocculation treatment device of the present invention;
FIG. 3 is a schematic view showing the structure of a base material for a flocculant distributor of the flocculation treatment apparatus for chemical laboratory wastewater according to the present invention;
FIG. 4 is a schematic view showing another structure of a base material for a flocculant distributor of the flocculation treatment apparatus for chemical laboratory sewage according to the present invention;
FIG. 5 is a schematic view of the distribution plate of the sewage distributor of the flocculation treatment apparatus for chemical laboratory sewage according to the present invention;
FIG. 6 is another schematic diagram of the structure of the flocculant distributor of the flocculation treatment device for chemical laboratory wastewater.
In the figure, 1-water inlet pipe; 2-sewage distributor; 3-a flocculant reservoir; 4-powder spray head; 5-a flocculation reactor; 6-a flocculant distributor; 7-a support block; 8-flocculation reaction zone; 9-sealing the cover; 10-an annular member; 11-a rod-shaped connector; 12-a substrate; 13-a bump; 14-a groove; 15-a rod member; 16-a distribution plate; 17-primary pore; 18-secondary pores; 19-tertiary pore; and 20-diversion trenches.
Detailed Description
Example 1
As shown in fig. 1, the chemical laboratory sewage flocculation treatment device of the present invention comprises a flocculation reactor 5, a sewage inlet pipe 1, a sewage distributor 2, a flocculant storage 3, a powder nozzle 4 and a flocculant distributor 6; the water outlet end of the sewage inlet pipe 1 is in fluid communication connection with the water inlet end of the sewage distributor 2, the sewage distributor 2 is installed on the sealing cover 9 of the flocculation reactor 5, and the water outlet end of the sewage distributor 2 is in fluid communication with the inside of the flocculation reactor 5; the flocculant storage 3 is in fluid communication connection with the powder sprayer 4, the nozzle of the powder sprayer 4 is arranged in the flocculation reactor 5, and the powder sprayer 4 is arranged on the side wall of the flocculation reactor 5 close to the sealing cover 9; the flocculating agent distributor 6 is arranged in the flocculation reactor 5 below the nozzle of the powder spray head 4 and above the liquid level in the flocculation reactor 5; when a flocculation sedimentation experiment is carried out, the powder spray nozzle 4 sprays the flocculating agent stored in the flocculating agent storage 3 into the flocculation reactor 5, a part of the flocculating agent falls on the flocculating agent distributor 6, and then the flocculating agent on the flocculating agent distributor 6 is flushed into the sewage below the flocculating agent distributor 6 by the sewage flowing out of the sewage distributor 2.
The included angle between the spraying direction of the powder nozzle 4 and the side wall of the flocculation reactor 5 is 40 degrees, and the flow guide holes on the distribution plate 16 of the sewage distributor 2 are straight-through holes.
The flocculant distributor 6 comprises annular members 10 and rod-shaped connecting members 11, as shown in fig. 2, 4 annular members 10 with different inner diameters are coaxially assembled into a disc-shaped member through the rod-shaped connecting members 11, a gap for passing a flocculant or sewage is provided between two adjacent annular members 10, and the flocculant distributor 6 is placed on a supporting block 7 provided on the inner wall of the flocculation reactor 5. In this embodiment, the flocculant distributor 6 is made of a base material 12 having projections 13 on the surface thereof, and as shown in fig. 3, the distance between two adjacent projections 13 is 4mm.
The powder shower nozzle 4 will the flocculating agent of depositing in the flocculating agent accumulator 3 spouts into in the flocculation reactor 5, partly flocculating agent falls into in the sewage in the flocculation reactor, partly fall on flocculating agent distributor 6, two space between the arch 13 is convenient for temporarily store the flocculating agent, in order to avoid following sewage that flows out in the sewage distributor 2 is once only with flocculating agent on the flocculating agent distributor is washed into in the sewage in the flocculation reactor 5 to can improve the dispersion degree of flocculating agent in sewage. When the flocculant is dispersed in the sewage, uniform dispersion of the flocculant in the sewage can be achieved without stirring, particularly in the case where the flocculant and the sewage are added to the flocculation reactor 5 in batches.
And after the flocculating agent is dispersed in the sewage, the flocculating agent and pollutants in the sewage generate flocculation reaction to produce floccules, and the floccules continuously grow along with the continuous addition of the flocculating agent and the sewage. The stirring of the flocculating agent which is uniformly dispersed into the sewage is omitted, so that the interruption of the growth of the floccules can be avoided.
Example 2
The chemical laboratory sewage flocculation treatment apparatus in this embodiment is different from the chemical laboratory sewage flocculation treatment apparatus in embodiment 1 in that: the flocculant distributor 6 comprises an annular member 10 and rod members 15, as shown in fig. 6, the rod members 15 with different lengths are arranged in parallel on the inner side of the annular member 10, and a gap for flocculant or sewage to pass through is arranged between every two adjacent rod members 15. The flocculant distributor 6 is made of a base material 12 having grooves 14 on the surface thereof, and as shown in fig. 4, the distance between adjacent two of the grooves 14 is 6mm.
Compared with the gap between the two protrusions 13 in embodiment 1, the grooves 14 have stronger holding capacity for the flocculant, so that the dispersion degree of the flocculant in sewage can be improved, especially the flocculant with stronger flocculation effect can be improved, and meanwhile, the flocculant on the flocculant distributor 6 can be prevented from being washed down once by the concentrated sewage flow flowing out of the sewage distributor 2.
Example 3
The difference between the flocculation treatment device for chemical laboratory wastewater in this embodiment and the flocculation treatment device for chemical laboratory wastewater in embodiment 1 is that: the diversion holes on the distribution plate 16 of the sewage distributor 2 are stepped holes, as shown in fig. 5, the stepped holes comprise a primary hole 17, a secondary hole 18 and a tertiary hole 19, and the primary hole 17, the secondary hole 18 and the tertiary hole 19 are all tapered holes; the flaring end of the first-stage hole 17 is coaxially connected with the flaring end of the second-stage hole 18, the reducing end of the second-stage hole 18 is coaxially connected with the reducing end of the third-stage hole 19, and the hole wall of the first-stage hole 17, the hole wall of the second-stage hole 18 and the hole wall of the third-stage hole 19 are provided with communicated diversion trenches 20.
The dispersion effect of the flocculant into the sewage by the flocculant distributor 6 instead of the agitator depends not only on the flocculant holding ability of the flocculant distributor 6 but also on the degree to which the sewage distributor 2 can disperse the sewage. The diversion holes on the distribution plate 16 of the sewage distributor 2 in this embodiment are stepped holes, and particularly, as shown in fig. 5, the diversion holes can disperse sewage flowing out of the diversion holes to a higher degree, because: the first-stage holes 17 disperse water flow, the diversion trenches 20 on the hole walls of the first-stage holes 17 improve the dispersion degree of partial water flow, the second-stage holes 18 shrink the water flow, the diversion trenches 20 on the hole walls of the second-stage holes 18 shrink the partial water flow to a lower degree, the third-stage holes 19 disperse the water flow again, and the diversion trenches 20 on the hole walls of the third-stage holes 19 disperse the partial water flow to a higher degree, especially when the cross sections of the diversion trenches 20 are conical and the conical flaring faces the center axis of the diversion holes.
Utilize the shoulder hole carries out homodisperse with the pollutant in the sewage, makes sewage rivers follow simultaneously can comparatively even dispersion when flowing in the water conservancy diversion hole, can make sewage evenly will flocculating agent infiltration on the flocculating agent distributor 6 is gone into in the sewage of flocculating agent distributor 6 below to realize the homodisperse of flocculating agent in sewage, can avoid mechanical stirring to break of flocculus continuous growth simultaneously.
When the sewage flocculation treatment apparatus in the chemical laboratory in examples 1 to 3 is used to flocculate sewage, a certain amount of sewage may be injected into the flocculation reaction area 8 of the flocculation reactor 5, and then a flocculant is injected into the flocculation reactor 5, a part of the flocculant injected into the flocculation reactor 5 falls into the sewage in the flocculation reaction area 8, and another part of the flocculant is attached to the flocculant distributor 6, and then a certain amount of sewage is injected into the flocculation reactor 5, which will flush the flocculant on the flocculant distributor 6 into the sewage in the flocculation reaction area 8 and form dynamic mixing with the sewage, rather than mixing by diffusion, so as to achieve a stirring-like effect, and the larger the impact force of the sewage on the flocculant distributor 6, the better the mixing effect, and the flow guide hole structures on the distribution plate 16 of the sewage distributor 2 will also have a certain impact on the impact effect of the flocculant on the flocculant distributor, and the flow guide hole structures in example 3 can improve the dispersion effect of the flocculant while ensuring the downward impact of the sewage, so that the residual impact force of the flocculant on the flocculant in the sewage can be reduced, and the flocculant can be flushed after the flocculant on the flocculant distributor 6 is washed. After the flocculant distributor 6 is washed by sewage for a period of time, the sewage is temporarily injected into the flocculation reactor 5, then the flocculant is injected into the flocculation reactor 5, then the sewage is injected into the flocculation reactor 5, and the steps are repeated, so that the mixing of the flocculant and the sewage and the flocculation treatment of the sewage in a chemical laboratory can be realized.
In the process of flocculating sewage by using the sewage flocculation treatment device in the chemical laboratory in the embodiment 1 to 3, the flocculating agent is mixed with the sewage in a leaching way, so that the flocculating agent and the sewage can be fully mixed, the influence of stirring on the continuous growth of floccules can be reduced or even eliminated, the fracture caused by external force disturbance in the growth process of the floccules is avoided, and the floccules with complete shapes can be obtained in a short time.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the claims of this patent.
Claims (4)
1. A chemical laboratory sewage flocculation treatment device is characterized by comprising a flocculation reactor (5), a sewage inlet pipe (1), a sewage distributor (2), a flocculant storage device (3), a powder spray head (4) and a flocculant distributor (6); the water outlet end of the sewage inlet pipe (1) is in fluid communication connection with the water inlet end of the sewage distributor (2), the sewage distributor (2) is installed on the sealing cover (9) of the flocculation reactor (5), and the water outlet end of the sewage distributor (2) is in fluid communication with the inside of the flocculation reactor (5); the flocculating agent storage device (3) is in fluid communication connection with the powder spray head (4), a nozzle of the powder spray head (4) is arranged in the flocculation reactor (5), and the powder spray head (4) is arranged on the side wall of the flocculation reactor (5) close to the sealing cover (9); the flocculating agent distributor (6) is arranged in the flocculation reactor (5) below the nozzle of the powder spray head (4) and above the liquid level in the flocculation reactor (5); when a flocculation sedimentation experiment is carried out, the powder spray head (4) sprays the flocculating agent stored in the flocculating agent storage device (3) into the flocculation reactor (5), a part of the flocculating agent falls on the flocculating agent distributor (6), and then the flocculating agent on the flocculating agent distributor (6) is flushed into sewage below the flocculating agent distributor (6) by sewage flowing out of the sewage distributor (2); the flow guide holes in the distribution plate (16) of the sewage distributor (2) are stepped holes, each stepped hole comprises a primary hole (17), a secondary hole (18) and a tertiary hole (19), each of the primary hole (17), the secondary hole (18) and the tertiary hole (19) is a conical hole, the flared end of the primary hole (17) is coaxially connected with the flared end of the secondary hole (18), and the necked end of the secondary hole (18) is coaxially connected with the necked end of the tertiary hole (19); the wall of the primary hole (17), the wall of the secondary hole (18) and the wall of the tertiary hole (19) are provided with communicated diversion trenches (20), the flocculant distributor (6) is made of a base material (12) with protrusions (13) on the surface or the flocculant distributor (6) is made of a base material (12) with grooves (14) on the surface, and the distance between every two adjacent protrusions (13) is 2-7 mm; the distance between two adjacent grooves (14) is 2-7 mm, and the flocculating agent distributor (6) is arranged on a supporting block (7) arranged on the inner wall of the flocculation reactor (5).
2. The chemical laboratory sewage flocculation treatment device of claim 1, wherein an included angle between the spraying direction of the powder spray nozzle (4) and the side wall of the flocculation reactor (5) is 30-70 °.
3. The chemical laboratory sewage flocculation treatment apparatus of claim 1, wherein the flocculant distributor (6) comprises annular members (10) and rod-like connectors (11), wherein the annular members (10) having 3 or more different inner diameters are coaxially assembled into a disk-like member through the rod-like connectors (11), and a gap for passage of a flocculant or sewage is provided between two adjacent annular members (10).
4. The chemical laboratory sewage flocculation treatment device of claim 1, wherein the flocculant distributor (6) comprises an annular member (10) and rod members (15), the rod members (15) with different lengths are arranged in parallel inside the annular member (10), and a gap for a flocculant or sewage to pass through is arranged between two adjacent rod members (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110347419.4A CN113060811B (en) | 2021-03-31 | 2021-03-31 | Chemistry experiment room sewage flocculation treatment device |
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| CN202110347419.4A CN113060811B (en) | 2021-03-31 | 2021-03-31 | Chemistry experiment room sewage flocculation treatment device |
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| CN113060811A CN113060811A (en) | 2021-07-02 |
| CN113060811B true CN113060811B (en) | 2022-11-08 |
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