CN211644850U - Municipal sewage sand removing device - Google Patents
Municipal sewage sand removing device Download PDFInfo
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- CN211644850U CN211644850U CN202020195241.7U CN202020195241U CN211644850U CN 211644850 U CN211644850 U CN 211644850U CN 202020195241 U CN202020195241 U CN 202020195241U CN 211644850 U CN211644850 U CN 211644850U
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Abstract
The utility model discloses an urban sewage sand removing device, which comprises a water collecting unit, a sand removing unit, a water storing and returning unit and a sand collecting unit, wherein the water collecting unit internally comprises the sand removing unit which is connected and alternated in a circulating static and dynamic way, a water inlet is arranged at the upper left part of the water collecting unit, spiral stirring is arranged in the sand removing unit, the lower part of the water collecting unit is connected with the water storing and returning unit through a water outlet pipe, the lower part of the sand removing unit is connected with the water storing and returning unit through a water returning pipe, the lower part of the sand removing unit is connected with the sand collecting unit through a sand conveying pipe, a one-way water valve is arranged in the water storing and returning unit, a water outlet is arranged below the water storing and returning unit, a sand outlet is arranged on the right side wall of the sand collecting unit, the device has simple structure and high automation degree, reduces the work cost of labor force, the precision is high, has improved sewage treatment efficiency, has prolonged follow-up water treatment facilities's life.
Description
Technical Field
The utility model relates to a sewage degritting technical field specifically is an urban sewage sand removing device.
Background
The sand setting amount of the common urban sewage can be calculated according to 100 ten thousand m3 sewage sand setting 30m3, the water content is 60 percent, and the density is 1500kg/m3, but the water sample detection of the water inlet of some sewage treatment plants is often higher than the value, even 2-3 times of the designed sand content. The increase of the sand content in the sewage brings influence to each working procedure in the operation, which is very unfavorable for the daily operation of the sewage treatment system.
The front pool of the water inlet pump room is a water collecting area of the pump room and also becomes a grit chamber for coarse particles in sewage. The sand accumulation at the diffusion and dead angle in the water inlet channel is more serious, so that the water inlet amount of the water pump is blocked, the operation is unstable, the noise is increased, and the abrasion of the impeller and the volute is also aggravated. The retention time of the grit chamber of a plurality of domestic sewage treatment plants is about 3min, which is about 1/6-1/3 of the retention time of the grit chamber of the German sewage treatment plant. Such a short retention time causes many fine sands to enter the primary settling tank along with the effluent of the grit chamber, so that the abrasion of sludge discharge equipment of the primary settling tank is aggravated. In a sludge treatment system, sand grains have the characteristics of fluidity and easy sedimentation, and can cause blockage of a sludge pipeline and sand accumulation at the bottom of a digestion tank, so that the normal operation of the digestion tank and the methane yield are influenced. The existence of sand in the sewage treatment operation system and the failure of timely treatment have become one of the important reasons that sewage treatment cost is high and equipment loss is serious, therefore, the utility model relates to a high-efficient comprehensive sewage sand removal device is urgent.
Patent CN208577518U describes a sewage desanding device provided with a settling tank and a sand extractor, wherein the sand extractor is arranged inside a stirring shaft of the settling tank, and is directly communicated with the bottom of the settling tank through a sand suction port of a bottom sand extraction pipe to discharge precipitated silt; the desanding effect cannot be guaranteed, and patent CN208542692U describes a sewage desanding device of a backwashing cyclone desander, wherein a water outlet of a backwashing pump is connected with two pipelines, one is connected with a backwashing pipe, and the other is connected with the cyclone desander, so that the sludge tank can discharge silt thoroughly, the desanding efficiency is low, and the automation degree is low.
The defect that the existing device exists is improved, and the urban sewage sand removing device is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an urban sewage sand removing device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an urban sewage desanding device comprises a water collecting unit, a desanding unit, a water storing and returning unit and a sand collecting unit, the water collecting unit internally comprises a sand removing unit which is connected in a circulating static and dynamic way and is alternated, a water inlet is arranged at the upper left part of the water collecting unit, the sand removing unit is internally provided with spiral stirring, the lower part of the water collecting unit is connected with the water storing and returning unit through a water outlet pipe, the lower part of the sand removing unit is connected with the water storage and return unit through a return pipe, the lower part of the sand removing unit is connected with the sand collecting unit through a sand conveying pipe, a one-way water valve is arranged in the water storage and return unit, a water outlet is arranged below the water storage and return unit, a sand outlet is arranged on the right side wall of the sand collecting unit, an extrusion plate is arranged above the inside of the sand collecting unit, and a mud-sand induction plate is arranged below the inner part of the sand collecting unit, and a water squeezing outlet is arranged below the left side of the sand collecting unit.
As a further aspect of the present invention: the water collecting unit comprises a first-stage static desanding unit, a first-stage rotational flow desanding unit, a second-stage static desanding unit and a second-stage rotational flow desanding unit, and the water collecting unit is sequentially divided into the first-stage static desanding unit, the first-stage rotational flow desanding unit, the second-stage static desanding unit and the second-stage rotational flow desanding unit.
As a further aspect of the present invention: the sand removing unit is wrapped in the water collecting unit and is of an upper layer structure and a lower layer structure.
As a further aspect of the present invention: spiral stirring is arranged inside the first-stage cyclone desanding unit and the second-stage cyclone desanding unit.
As a further aspect of the present invention: the water storage and return unit comprises a first-stage static desanding water storage unit, a first-stage rotational flow desanding water storage unit, a second-stage static desanding water storage unit and a second-stage rotational flow desanding water storage unit, the water storage and return unit is sequentially divided into the first-stage static desanding water storage unit, the first-stage rotational flow desanding water storage unit, the second-stage static desanding water storage unit and the second-stage rotational flow desanding water storage unit, the water outlet pipe comprises a first-stage static desanding water outlet pipe, a first-stage rotational flow desanding water outlet pipe, a second-stage static desanding water outlet pipe and a second-stage rotational flow desanding water outlet pipe, the water return pipe comprises a first-stage static water return pipe, a first-stage rotational flow sand conveying pipe, a second-stage static sand conveying pipe and a second-stage rotational flow sand conveying pipe.
As a further aspect of the present invention: the one-way water valve comprises a one-way water valve A, a one-way water valve B, a one-way water valve C and a one-way water valve D, wherein the water flow sequence sequentially comprises a first-stage static desanding unit, a first-stage rotational flow desanding unit, a second-stage static desanding unit and a second-stage rotational flow desanding unit in a corresponding sequence.
As a further aspect of the present invention: and water outlets are arranged below the first-stage static desanding water storage unit, the first-stage rotational flow desanding water storage unit, the second-stage static desanding water storage unit and the second-stage rotational flow desanding water storage unit, when the numerical value of the silt and sand induction plate reaches the standard, the corresponding water outlets are opened, and sewage enters the next treatment unit.
As a further aspect of the present invention: and after the sand removing unit conveys the sand through the sand conveying pipe to the sand sensing plate, when the sand sensing plate senses that the weight of the sand is higher than a standard value, the sewage in the water storage and return unit is reversely conveyed to the next-stage sand removing treatment unit through the return pipe under the action of the pressure pump.
As a further aspect of the present invention: when the extrusion plate completes sand removal treatment of a section of sewage, the sand and mud accumulated in the sand collecting unit are extruded by the extrusion plate, redundant water is extruded out and then discharged through the sand outlet, and simultaneously, the sewage generated by extrusion is discharged to the next stage of sewage treatment equipment through the water extrusion water outlet.
Compared with the prior art, the beneficial effects of the utility model are that: the device has the advantages of simple structure, high automation degree, high accuracy, high sewage treatment efficiency, good sewage desanding effect, capability of ensuring that the desanding reaches the standard and prolonging the service life of subsequent water treatment equipment, and reduces a large amount of labor force work and labor cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the expanded cross-sectional structure of the present invention.
Fig. 3 is a schematic structural view of the middle sand conveying pipe of the present invention.
Wherein: the system comprises a water collecting unit 1, a sand removing unit 2, a water storage and return unit 3, a sand collecting unit 4, a water outlet pipe 5, a return pipe 6, a sand conveying pipe 7, a one-way water valve 8, a water inlet 9, a spiral stirrer 10, a sand outlet 11, a sewage conveying port 12, an extrusion plate 13, a sand induction plate 14 and a water squeezing water outlet 15;
a primary static desanding unit 101, a primary cyclone desanding unit 102, a secondary static desanding unit 103 and a secondary cyclone desanding unit 104;
a primary static desanding water storage unit 301, a primary rotational flow desanding water storage unit 302, a secondary static desanding water storage unit 303 and a secondary rotational flow desanding water storage unit 304;
a primary static desanding water outlet pipe 501, a primary rotational flow desanding water outlet pipe 502, a secondary static desanding water outlet pipe 503 and a secondary rotational flow desanding water outlet pipe 504;
a first-stage static water return pipe 601, a first-stage rotational flow water return pipe 602, a second-stage static water return pipe 603 and a second-stage rotational flow water return pipe 604;
a primary static sand conveying pipe 701, a primary rotational flow sand conveying pipe 702, a secondary static sand conveying pipe 703 and a secondary rotational flow sand conveying pipe 704;
a one-way water valve A801, a one-way water valve B802, a one-way water valve C803 and a one-way water valve D804.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-3, in the embodiment of the present invention, an urban sewage desanding device comprises a water collecting unit 1, a desanding unit 2, a water storing and returning unit 3 and a desanding unit 4, wherein the water collecting unit 1 comprises a desanding unit 2 with a circular static and dynamic connection alternation, the desanding unit 2 filters sand and mud in sewage, a water inlet 9 is arranged at the upper left of the water collecting unit 1, the sewage inlet 9 is used for sewage entering, a spiral stirrer 10 is arranged inside the desanding unit 2 and used for stirring sewage to help desanding, the lower part of the water collecting unit 1 is connected with the water storing and returning unit 3 through a water outlet pipe 5, the water outlet pipe 5 is used for sewage transmission, the lower part of the desanding unit 2 is connected with the water storing and returning unit 3 through a water returning pipe 6, the water returning pipe 6 is used for reverse sewage transmission, the lower part of the desanding unit 2 is connected with the sand collecting unit 4 through a sand conveying pipe 7, the sand conveying pipe 7 is used for conveying sand, a one-way water valve 8 is arranged in the water storage and return unit 3, the one-way water valve 8 is used for opening and closing sewage, a water outlet 12 is arranged below the water storage and return unit 3, the water outlet 12 is used for discharging sewage after sand removal is finished, a sand outlet 11 is formed in the right side wall of the sand collection unit 4, the sand outlet 11 is used for discharging sand in the sand collection unit 4, an extrusion plate 13 is arranged above the inside of the sand collection unit 4, the sand is extruded by the extrusion plate 13 to remove redundant water, a sand induction plate 14 is arranged below the inside of the sand collection unit 4 and used for detecting the amount of the sand, and a water extrusion water outlet 15 is arranged below the left side of the sand collection unit 4 and used for discharging sewage in the sand collection unit 4.
The water collecting unit 1 comprises a first-stage static desanding unit 101, a first-stage cyclone desanding unit 102, a second-stage static desanding unit 103 and a second-stage cyclone desanding unit 104, and the water collecting unit 1 is sequentially divided into the first-stage static desanding unit 101, the first-stage cyclone desanding unit 102, the second-stage static desanding unit 103 and the second-stage cyclone desanding unit 104.
The sand removing unit 2 is wrapped in the water collecting unit 1 and is of an upper-layer structure and a lower-layer structure and used for filtering mud and sand in sewage.
Spiral stirring 10 is arranged inside the first-stage cyclone desanding unit 102 and the second-stage cyclone desanding unit 104 to help filtering silt in sewage.
The water storage and return unit 3 comprises a first-stage static desanding water storage unit 301, a first-stage rotational flow desanding water storage unit 302, a second-stage static desanding water storage unit 303 and a second-stage rotational flow desanding water storage unit 304, the water storage and return unit 3 is sequentially divided into a first-stage static desanding water storage unit 301, a first-stage rotational flow desanding water storage unit 302, a second-stage static desanding water storage unit 303 and a second-stage rotational flow desanding water storage unit 304, the water outlet pipe 5 comprises a first-stage static desanding water outlet pipe 501, a first-stage rotational flow desanding water outlet pipe 502, a second-stage static desanding water outlet pipe 503 and a second-stage rotational flow desanding water outlet pipe 504, the water return pipe 6 comprises a primary static water return pipe 601, a primary rotational flow water return pipe 602, a secondary static water return pipe 603 and a secondary rotational flow water return pipe 604, the sand conveying pipe 7 comprises a primary static sand conveying pipe 701, a primary rotational flow sand conveying pipe 702, a secondary static sand conveying pipe 703 and a secondary rotational flow sand conveying pipe 704.
The one-way water valve 8 comprises a one-way water valve A801, a one-way water valve B802, a one-way water valve C803 and a one-way water valve D804, wherein the water flow sequence is the corresponding sequence of the first-stage static desanding unit 101, the first-stage rotational flow desanding unit 102, the second-stage static desanding unit 103 and the second-stage rotational flow desanding unit 104.
Example 2
And water outlets 12 are arranged below the first-stage static desanding water storage unit 301, the first-stage rotational flow desanding water storage unit 302, the second-stage static desanding water storage unit 303 and the second-stage rotational flow desanding water storage unit 304, when the numerical value of the silt and sand induction plate 14 reaches the standard, the corresponding water outlets 12 are opened, and sewage enters a next treatment unit.
After the silt conveyed by the sand removing unit 2 through the sand conveying pipe 7 reaches the silt sensing plate 14, when the silt sensing plate 14 senses that the weight of the silt is higher than a standard value, the sewage in the water storage and return unit 3 is reversely conveyed to the next-stage desanding processing unit through the return pipe 6 under the action of the pressure pump.
When the extrusion plate 13 completes sand removal treatment of a section of sewage, the sand and mud accumulated in the sand collecting unit 4 are extruded by the extrusion plate 13, redundant water is extruded out and then discharged through the sand outlet 11, and simultaneously, the sewage generated by extrusion is discharged to the next stage of sewage treatment equipment through the water extrusion outlet 15.
The utility model discloses a theory of operation is: when the municipal sewage desanding device is used, municipal sewage containing silt and needing to be treated directly enters a primary static desanding unit 101 in a desanding unit 2 from a water inlet 9, after precipitation and filtration, the sewage directly enters a primary static desanding water outlet pipe 501 from a filter screen and enters a primary static desanding water storage unit 301, precipitated silt enters a primary static sand conveying pipe 701 and firstly falls onto a silt sensing plate 14, when the sensed value does not meet the standard, a one-way water valve B802 is opened and enters the primary rotational flow desanding water storage unit 302, the settled silt is conveyed to the primary rotational flow desanding unit 102 through a primary rotational flow return pipe 602 under the action of a pressure pump to perform precipitation and desanding, similarly, the sewage enters the primary rotational flow desanding water storage unit 302 through the primary rotational flow sand removing pipe 502 through the filter screen, the silt falls onto the silt sensing plate 14 through the primary rotational flow sand conveying pipe 702, when the sensed value does not meet the standard, the one-way water valve C803 is opened, enters the secondary static desanding and water storing unit 303, enters the secondary static desanding unit 103 through the secondary static water return pipe 603 under the action of a pressure pump, is subjected to physical precipitation and filtration, the mesh number of the filter screens is smaller than that of the filter screens in the primary static desanding unit, after treatment, sewage enters the secondary static desanding and water storing unit 303 through the secondary static desanding water outlet pipe 503, silt firstly falls onto the silt induction plate 14 through the secondary static sand conveying pipe 703, when the induction value does not meet the standard, the one-way water valve D804 is opened, enters the secondary rotational flow desanding and water storing unit 304, enters the secondary rotational flow water return pipe 104 through the secondary rotational flow water return pipe 604 under the action of the pressure pump, is subjected to rotational flow desanding treatment, meanwhile, the water after desanding enters the secondary rotational flow desanding and water storing unit 304 through the secondary rotational flow water outlet pipe 504, the remaining silt after treatment firstly falls onto the silt induction plate 14 through the secondary rotational flow sand conveying, when the induction value does not meet the standard, the one-way water valve A801 is opened and enters the first-stage static sand removal water storage unit, under the pressure of the pump, the one-stage static sand removal water storage unit enters the first-stage static sand removal unit 101 through the first-stage static sand conveying pipe 701, the treatment is performed in a reciprocating and circulating mode in sequence, after the data induced by the sand and mud induction plate 10 meet the standard, the corresponding sewage outlet 12 is opened, and the sand and mud removal sewage enters the next sewage treatment process. Meanwhile, after circulation is finished, the squeezing plate 13 arranged in the sand collecting unit 4 can squeeze collected mud and sand at the circulation section, residual sewage is squeezed out and enters the next sewage treatment process through the squeezing water outlet 15, the squeezed mud and sand are discharged through the sand outlet 11 for treatment, and the sand collecting unit 4 is also cleaned during sewage treatment, so that the next circulation section sewage sand removal treatment is facilitated.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A municipal sewage sand removal device comprises a water collection unit (1), a sand removal unit (2), a water storage and return unit (3) and a sand collection unit (4), and is characterized in that the water collection unit (1) internally comprises the sand removal unit (2) which is connected alternately in a circulating static-dynamic manner, a water inlet (9) is formed in the upper left of the water collection unit (1), a spiral stirrer (10) is arranged in the sand removal unit (2), the lower part of the water collection unit (1) is connected with the water storage and return unit (3) through a water outlet pipe (5), the lower part of the sand removal unit (2) is connected with the water storage and return unit (3) through a return pipe (6), the lower part of the sand removal unit (2) is connected with the sand collection unit (4) through a sand conveying pipe (7), a one-way water valve (8) is arranged in the water storage and return unit (3), a water outlet (12) is formed in the lower part of the water storage and return unit (3), the sand collecting device is characterized in that a sand outlet (11) is formed in the right side wall of the sand collecting unit (4), an extrusion plate (13) is arranged above the inside of the sand collecting unit (4), a silt sensing plate (14) is arranged below the inside of the sand collecting unit (4), and a water squeezing outlet (15) is formed below the left side of the sand collecting unit (4).
2. The municipal sewage sand removal device according to claim 1, wherein the water collection unit (1) comprises a primary static sand removal unit (101), a primary cyclone sand removal unit (102), a secondary static sand removal unit (103), and a secondary cyclone sand removal unit (104), and the water collection unit (1) is sequentially divided into the primary static sand removal unit (101), the primary cyclone sand removal unit (102), the secondary static sand removal unit (103), and the secondary cyclone sand removal unit (104).
3. The municipal sewage sand removal device according to claim 1, wherein the sand removal unit (2) is wrapped in the water collection unit (1) and has a two-layer structure.
4. The municipal sewage sand removal device according to claim 2, wherein the primary cyclone sand removal unit (102) and the secondary cyclone sand removal unit (104) are internally provided with a helical agitator (10).
5. The municipal sewage sand removal device according to claim 1, wherein the water storage and return unit (3) comprises a first-stage static sand removal water storage unit (301), a first-stage rotational flow sand removal water storage unit (302), a second-stage static sand removal water storage unit (303) and a second-stage rotational flow sand removal water storage unit (304), the water storage and return unit (3) is sequentially divided into the first-stage static sand removal water storage unit (301), the first-stage rotational flow sand removal water storage unit (302), the second-stage static sand removal water storage unit (303) and the second-stage rotational flow sand removal water storage unit (304), the water outlet pipe (5) comprises a first-stage static sand removal water outlet pipe (501), a first-stage rotational flow sand removal water outlet pipe (502), a second-stage static sand removal water outlet pipe (503) and a second-stage rotational flow sand removal water outlet pipe (504), the water return pipe (6) comprises a first-stage static water return, The sand conveying pipe (7) comprises a primary static sand conveying pipe (701), a primary rotational flow sand conveying pipe (702), a secondary static sand conveying pipe (703) and a secondary rotational flow sand conveying pipe (704).
6. The municipal sewage sand removal device according to claim 2, wherein the one-way water valve (8) comprises a one-way water valve A (801), a one-way water valve B (802), a one-way water valve C (803) and a one-way water valve D (804), wherein the water flow is in the order of the first-stage static sand removal unit (101), the first-stage cyclone sand removal unit (102), the second-stage static sand removal unit (103) and the second-stage cyclone sand removal unit (104).
7. The municipal sewage sand removal device according to claim 5, wherein the first static sand removal water storage unit (301), the first rotational flow sand removal water storage unit (302), the second static sand removal water storage unit (303) and the second rotational flow sand removal water storage unit (304) are all provided with water outlets (12) below, when the value of the sand induction plate (14) reaches the standard, the corresponding water outlets (12) are opened, and sewage enters the next treatment unit.
8. The municipal sewage sand removal device according to claim 1, wherein after the sand removed by the sand removal unit (2) through the sand conveying pipe (7) reaches the sand sensing plate (14), when the sand sensing plate (14) senses that the weight of the sand is higher than a standard value, the sewage in the water storage and return unit (3) is reversely conveyed to the next-stage sand removal treatment unit through the return pipe (6) under the action of the pressure pump.
9. The municipal sewage sand removal device according to claim 1, wherein when the squeeze plate (13) completes the sand removal treatment of a section of sewage, the sand and mud accumulated in the sand collection unit (4) are squeezed by the squeeze plate (13), excess water is squeezed out and discharged through the sand outlet (11), and simultaneously, the sewage generated by the squeezing is discharged to the next stage of sewage treatment equipment through the squeezing water outlet (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020195241.7U CN211644850U (en) | 2020-02-22 | 2020-02-22 | Municipal sewage sand removing device |
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| CN202020195241.7U CN211644850U (en) | 2020-02-22 | 2020-02-22 | Municipal sewage sand removing device |
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| CN211644850U true CN211644850U (en) | 2020-10-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288719A (en) * | 2021-12-29 | 2022-04-08 | 新沂市紫金硅业有限公司 | Quartz sand filtering and purifying equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288719A (en) * | 2021-12-29 | 2022-04-08 | 新沂市紫金硅业有限公司 | Quartz sand filtering and purifying equipment |
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