CN210635873U - Silt consolidation dehydration treatment device of bottom vacuum drainage - Google Patents
Silt consolidation dehydration treatment device of bottom vacuum drainage Download PDFInfo
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- CN210635873U CN210635873U CN201921061531.6U CN201921061531U CN210635873U CN 210635873 U CN210635873 U CN 210635873U CN 201921061531 U CN201921061531 U CN 201921061531U CN 210635873 U CN210635873 U CN 210635873U
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Abstract
The utility model provides a silt consolidation and dehydration treatment device with vacuum drainage at the bottom, which comprises a silt pool, a vacuum filter tube structure, a first conveying pipe, a water-gas separation device, a second conveying pipe and a vacuum pump; and a vacuum filter pipe structure is laid at the bottom of the sludge tank. The utility model discloses can discharge the moisture in the dredging silt fast, shorten silt consolidation time, reduce silt storage yard area, avoid the waste of land resource and the secondary pollution of heavy metal in the silt.
Description
Technical Field
The utility model relates to a silt processing technology field, in particular to silt concreties and dewaters processing apparatus.
Background
A large amount of dredged sludge is generated in the construction and maintenance of ports and navigation channels and water environment treatment projects such as rivers, lakes and the like. The water content of the sludge is high, the content of the sticky particles is more than 20%, the disturbance intensity is extremely low, the normal drainage consolidation is slow, a large amount of dredged sludge needs to be arranged in a sludge storage yard to occupy a large amount of land for a long time, so that the land resource is greatly wasted, meanwhile, the sludge often contains more pollutants such as heavy metals and the like, the secondary pollution is easily caused, and how to carry out resource treatment or disposal on the sludge efficiently, economically and in a large scale becomes more important.
In plain urban rivers, the river flow rate is slow, and the sedimentation is often serious. Along with the development of urban river dredging engineering in China, the problem of urban river sludge treatment is highlighted day by day. Most of the sludge in the early stage is stored in a storage yard and naturally dried. The method mainly comprises the steps of digging a sludge treatment pit or filling a cofferdam near a river reach involved in engineering to form a sludge treatment pond, and dredging sludge at the river bottom into a sludge storage yard by a dry-digging or hydraulic-flushing method. The dredged sludge has poor settling property, and after the dredged sludge is stored for one or two years, the surface is dried, but the internal structure is still in a flow state, so that the beneficial utilization cannot be developed.
In order to discharge water in the sludge, drainage blind ditches are usually arranged at the bottom of a sludge pit in a project to form a drainage channel at the bottom of a sludge yard. However, a number of engineering examples have shown that the drainage blind ditch has little or even complete failure.
The treatment of the dredged sludge is not only directly related to the life quality of residents around the city, but also directly related to the development space of the city, the utilization of land resources, the environmental protection and the like. Therefore, the development of a dredging sludge yard rapid dehydration technology suitable for the requirements of river dredging engineering in China is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a silt concreties and dewaters processing apparatus of bottom vacuum drainage, the moisture in the silt is dredged in the quick discharge shortens silt consolidation time, reduces silt storage yard area, avoids the waste of land resource and the secondary pollution of heavy metal in the silt. The technical scheme adopted for realizing the purpose of the utility model is as follows:
silt consolidation dehydration processing apparatus of bottom vacuum drainage, its characterized in that: the device comprises a sludge tank, a vacuum filter tube structure, a first conveying pipe, a water-gas separation device, a second conveying pipe and a vacuum pump; a vacuum filter pipe structure is laid at the bottom of the sludge tank; the vacuum filter tube structure is a closed conveying structure with interfaces and is formed by splicing a plurality of prefabricated filter tube structure units, each prefabricated filter tube structure unit is formed by connecting a plurality of filter tubes, a plurality of splicing interfaces are arranged at two ends of each prefabricated filter tube structure unit, a plurality of water suction holes penetrating through the tube walls are formed in the tube bodies of the filter tubes, and filter layers are wrapped on the outer walls of the filter tubes; the water-gas separation device is a closed container, and the upper part of the water-gas separation device is provided with a connecting hole; one end of the first conveying pipe is connected with an interface of the vacuum filter pipe structure, the other end of the first conveying pipe is connected with a connecting hole in the upper portion of the water-gas separation device, one end of the second conveying pipe is connected with the connecting hole in the upper portion of the water-gas separation device, and the other end of the second conveying pipe is connected with the vacuum pump.
Further, the projection of the sludge tank on the horizontal plane is rectangular and comprises a bottom surface and a plurality of side slopes, the bottom surface is a rectangular plate surface which is horizontally arranged, the lower ends of the side slopes are connected to the edge of the bottom surface, the upper ends of the side slopes incline towards the direction far away from the bottom surface, and the side faces of the side slopes are connected with the side faces of the adjacent side slopes.
Further, the vacuum filter pipe structure is horizontally laid on the bottom surface of the sludge tank and comprises a plurality of prefabricated filter pipe structure units, a plurality of direct joints, a plurality of plugging structures and connectors.
The prefabricated filter pipe structure unit comprises filter pipes and filter layers, the filter pipes comprise a plurality of water suction holes, a first transverse pipe, a second transverse pipe and a plurality of vertical pipes, the first transverse pipe and the second transverse pipe are arranged on the bottom surface of the sludge pond, the first transverse pipe and the second transverse pipe are parallel and equal, the plurality of vertical pipes are vertically connected between the first transverse pipe and the second transverse pipe, the distance between the vertical pipes is equal, the vertical pipes are not connected at two ends of the first transverse pipe, and splicing ports are reserved. And the two ends of the second transverse pipe are not connected with the vertical pipe, and splicing ports are reserved. The water suction holes are uniformly distributed on the first transverse pipe, the second transverse pipe and the vertical pipe. The filter layer is composed of two layers of non-woven geotextile.
A plurality of prefabricated chimney filter constitutional units establish ties and form the vacuum chimney filter structure, the first violently of prefabricated chimney filter constitutional unit is managed the concatenation interface and is managed the first violently of prefabricated chimney filter constitutional unit and is managed the concatenation interface and splice, and the concatenation department nestification has the lug joint. The second horizontal pipe splicing joint of the prefabricated filter pipe structural unit is spliced with the second horizontal pipe splicing joint of the adjacent prefabricated filter pipe structural unit, and the splicing position is nested with a direct joint.
The prefabricated filter tube structure unit at the tail end of the vacuum filter tube structure is characterized in that the splicing ports at the tail ends of the first transverse tube and the second transverse tube are nested with blocking structures. The front end of the vacuum filter tube structure is characterized in that a first horizontal tube splicing port of the prefabricated filter tube structure unit is connected with a first conveying tube, the joint is nested with the port, and a second horizontal tube splicing port is nested with a blocking structure.
Furthermore, the direct joint and the interface are both cylinders with two through ends, and the inner diameter of the direct joint is matched with the outer diameter of the filter tube. The inner diameter of the interface is matched with the outer diameter of the filter tube and is matched with the outer diameter of the first conveying pipe. The shape of plugging structure is the cylinder, the one end of cylinder is sealed, and the other end is opened, the internal diameter of plugging structure open end and the external diameter phase-match of chimney filter.
The technical effect of the utility model is undoubted, the utility model discloses can consolidate the dehydration to silt through bottom vacuum drainage, effectively combine the action of gravity, can accelerate the migration rate of dredging moisture in the silt, shorten silt consolidation time, in addition, drainage structures can be prefabricated, construction convenience. After drainage, the water content of the sludge is greatly reduced, the volume is greatly reduced, and the transportation cost is greatly reduced.
Drawings
FIG. 1 is a schematic view of a sludge consolidation and dewatering treatment apparatus with vacuum drainage at the bottom;
FIG. 2 is a schematic view of a vacuum filter tube;
fig. 3 is a cross-sectional view of the filter tube a-a of fig. 2.
In the figure: sludge tank 1, bottom surface 101, side slope 102, vacuum filter tube structure 2, prefabricated filter tube structure unit 201, filter tube 2011, water sucking hole 20111, first violently pipe 20112, the horizontal pipe 20113 of second, standpipe 20114, filter layer 2012, direct connection 202, block structure 203, interface 204, first conveyer pipe 3, aqueous vapor separator 4, second conveyer pipe 5 and vacuum pump 6.
Detailed Description
The present invention will be further described with reference to the following examples, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and modifications can be made without departing from the technical spirit of the invention and according to the common technical knowledge and conventional means in the field, and all shall be included in the scope of the invention.
Example 1:
referring to fig. 1, the sludge consolidation and dewatering treatment device with vacuum drainage at the bottom disclosed in the present embodiment comprises a sludge tank 1, a vacuum filter tube structure 2, a first delivery pipe 3, a water-gas separation device 4, a second delivery pipe 5 and a vacuum pump 6. The sludge tank 1 is concave, and the bottom of the sludge tank is paved with a vacuum filter tube structure 2. Referring to fig. 2, vacuum filter tube structure 2 is the closed transport structure who contains the interface, and it forms by the concatenation of a plurality of prefabricated filter tube constitutional unit 201, prefabricated filter tube constitutional unit 201 is formed by connecting a plurality of filter tubes 2011, and its both ends are provided with a plurality of interfaces of piecing together, refer to fig. 3, there are a plurality of water sucking holes 20111 that run through the pipe wall on the filter tube 2011 pipe shaft, the outer wall parcel of filter tube 2011 has filter layer 2012. One end of the first conveying pipe 3 is connected with an interface of the vacuum filter pipe structure 2, the other end of the first conveying pipe is connected with the upper end of the water-gas separation device 4, the water-gas separation device 4 is a closed cylindrical empty barrel, the upper end of the water-gas separation device 4 is provided with a connecting hole, and the water-gas separation device 4 and the vacuum pump 6 are located on the same side outside the sludge tank 1. And one end of the second conveying pipe II is connected with a connecting hole at the upper end of the water-gas separation device 4, and the other end of the second conveying pipe II is connected with a vacuum pump 6.
The projection of the sludge tank 1 on the horizontal plane is rectangular, and the sludge tank comprises a bottom surface 101 and a plurality of side slopes 102, wherein the bottom surface 101 is a rectangular plate surface which is horizontally arranged, the lower ends of the side slopes 102 are connected to the edge of the bottom surface 101, the upper ends of the side slopes 102 incline towards the direction far away from the bottom surface 101, and the side surfaces of the side slopes 102 are connected with the side surfaces of the adjacent side slopes 102.
The vacuum filter pipe structure 2 is horizontally laid on the bottom surface 101 of the sludge tank 1 and comprises a plurality of prefabricated filter pipe structure units 201, a plurality of direct joints 202, a plurality of plugging structures 203 and connectors 204.
Referring to fig. 2, the prefabricated filter pipe structure unit 201 includes filter pipe 2011 and filter layer 2012, the filter pipe 2011 includes a plurality of water suction holes 20111, first violently pipe 20112, the horizontal pipe 20113 of second and a plurality of standpipe 20114, the bottom surface 101 of silt basin 1 has arranged first violently pipe 20112 and the horizontal pipe 20113 of second, first violently pipe 20112 and the horizontal pipe 20113 of second are parallel and isometric, first violently pipe 20112 and the horizontal pipe 20113 of second are connected with a plurality of standpipe 20114 perpendicularly between, the interval between standpipe 20114 equals, the standpipe 20114 is not connected at the both ends of first violently pipe 20112, reserves out the piece. The two ends of the second horizontal pipe 20113 are not connected with the vertical pipe 20114, and a splicing port is reserved. The water absorbing holes 20111 are uniformly distributed on the first horizontal pipe 20112, the second horizontal pipe 20113 and the vertical pipe 20114. The filter layer 2012 is formed from two layers of non-woven geotextile.
A plurality of prefabricated chimney liner constitutional unit 201 establishes ties and forms vacuum chimney liner structure 2, prefabricated chimney liner constitutional unit 201's first violently pipe 20112 splices the interface and splices with the first violently pipe 20112 of adjacent prefabricated chimney liner constitutional unit 201 splices the interface, and the concatenation department nestification has lug joint 202. The interface is pieced together to the second violently pipe 20113 of prefabricated chimney filter constitutional unit 201 and the interface is pieced together to the second violently pipe 20113 of adjacent prefabricated chimney filter constitutional unit 201, and the concatenation department nestification has direct joint 202.
The prefabricated filter tube structure unit 201 at the tail end of the vacuum filter tube structure 2 is characterized in that the splicing ports at the tail ends of the first horizontal tube 20112 and the second horizontal tube 20113 are nested with the blocking structures 203. The front end of the vacuum filter tube structure 2, the first horizontal tube 20112 of the prefabricated filter tube structure unit 201 is spliced with the interface and is connected with the first conveying tube 3, the interface 204 is nested at the joint, and the plugging structure 203 is nested on the splicing interface of the second horizontal tube 20113.
The direct joint 202 and the interface 204 are both cylinders with two through ends, and the inner diameter of the direct joint 202 is matched with the outer diameter of the filter tube 2011. The inner diameter of the interface 204 is matched with the outer diameter of the filter tube 2011 and is matched with the outer diameter of the delivery pipe I3. The shape of plugging structure 203 is the cylinder, the one end of cylinder is sealed, and the other end is opened, the internal diameter of plugging structure 203 open end and the external diameter phase-match of chimney filter 2011.
In this embodiment, the filter tube 2011 is made of a hot melt ppr tube, the diameter of the water suction holes 20111 is 1-2 mm, and the distance between the water suction holes 20111 is 1 cm.
When the sludge tank 1 is constructed, a construction scheme is determined according to the field situation. When the position of the sludge tank 1 is far away from a river channel or the underground water level is low, an excavation scheme is adopted to form the sludge tank 1; and when the sludge tank 1 is close to the river channel or the underground water level is high, adopting a scheme of filling a cofferdam to form the sludge tank 1.
When the prefabricated filter pipe structure units 201 are prefabricated, the length of the vertical pipes 20114 in the filter pipes 2011 is determined according to the size of the bottom surface 101 of the sludge tank 1. In the splicing process of the vacuum filter tube structure 2, the splicing number of the structural units 201 of the prefabricated filter tubes is determined according to the size of the bottom surface 101 of the sludge pond 1, and the vacuum filter tube structure 2 is ensured to be fully paved on the bottom surface 101.
In the structure of the present invention, each of the pipes can be vacuum-drained by using a PVC pipe having high hardness, and in this embodiment, the pipes such as the first horizontal pipe 20112, the second horizontal pipe 20113, the vertical pipe 20114, the first delivery pipe 3, and the second delivery pipe 5 are vacuum-drained by using a PVC pipe having high hardness.
Referring to fig. 1, during operation, sludge is poured into the sludge tank 1, and the sludge is fully contacted with the filter pipes 2011; then starting the vacuum pump 6 to generate negative pressure, wherein the negative pressure sequentially passes through the second conveying pipe 5, the water-gas separation device 4, the first conveying pipe 3 and the vacuum filter pipe structure 2, and the vacuum filter pipe structure 2 is filled with the negative pressure; liquid water or water vapor in the sludge enters the filter pipe 2011 through the water suction hole 20111 under the action of negative pressure, and the sludge is blocked by the filter layer 2012; the liquid water or the water vapor in the sludge flows into the water-gas separation device 4 through the filter pipe 2011 and the first delivery pipe 3, the water-gas separation device 4 stores the liquid water, and the water vapor flows into the vacuum pump 6 through the second delivery pipe 5 and is finally discharged, so that the sludge consolidation and dehydration process is completed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention, which is not illustrated herein.
Claims (4)
1. Silt consolidation dehydration processing apparatus of bottom vacuum drainage, its characterized in that: comprises a sludge tank (1), a vacuum filter tube structure (2), a first delivery pipe (3), a water-gas separation device (4), a second delivery pipe (5) and a vacuum pump (6); a vacuum filter pipe structure (2) is laid at the bottom of the sludge tank (1); the vacuum filter tube structure (2) is a closed conveying structure with interfaces and is formed by splicing a plurality of prefabricated filter tube structure units (201), each prefabricated filter tube structure unit (201) is formed by connecting a plurality of filter tubes (2011), a plurality of splicing interfaces are arranged at two ends of each prefabricated filter tube structure unit, a plurality of water suction holes (20111) penetrating through the tube wall are formed in the tube body of each filter tube (2011), and the outer wall of each filter tube (2011) is wrapped with a filter layer (2012); the water-gas separation device (4) is a closed container, and the upper part of the water-gas separation device is provided with a connecting hole; one end of the first conveying pipe (3) is connected with an interface of the vacuum filter pipe structure (2), the other end of the first conveying pipe is connected with a connecting hole in the upper portion of the water-gas separating device (4), one end of the second conveying pipe (5) is connected with the connecting hole in the upper portion of the water-gas separating device (4), and the other end of the second conveying pipe is connected with the vacuum pump (6).
2. The bottom vacuum drainage sludge consolidation dewatering treatment apparatus of claim 1, further comprising: the sludge tank (1) comprises a bottom surface (101) and a plurality of side slopes (102), wherein the bottom surface (101) is a rectangular surface which is horizontally arranged, the lower ends of the side slopes (102) are connected to the edge of the bottom surface (101), the upper ends of the side slopes (102) incline towards the direction far away from the bottom surface (101), and the side surfaces of the side slopes (102) are connected with the side surfaces of the adjacent side slopes (102).
3. The bottom vacuum drainage sludge consolidation dewatering treatment apparatus of claim 1, further comprising: the vacuum filter pipe structure (2) is horizontally laid on the bottom surface (101) of the sludge tank (1) and comprises a plurality of prefabricated filter pipe structure units (201), a plurality of direct joints (202), a plurality of plugging structures (203) and interfaces (204);
the prefabricated filter pipe structure unit (201) comprises a filter pipe (2011) and a filter layer (2012), the filter pipe (2011) comprises a plurality of water suction holes (20111), a first transverse pipe (20112), a second transverse pipe (20113) and a plurality of vertical pipes (20114), the first transverse pipe (20112) and the second transverse pipe (20113) are arranged on the bottom surface (101) of the sludge pond (1), the first transverse pipe (20112) and the second transverse pipe (20113) are parallel and equal, the plurality of vertical pipes (20114) are vertically connected between the first transverse pipe (20112) and the second transverse pipe (20113), the vertical pipes (20114) are arranged at intervals, the vertical pipes (20114) at two ends of the first transverse pipe (20112) are not connected, and splicing ports are reserved; two ends of the second transverse pipe (20113) are not connected with the vertical pipe (20114), and splicing ports are reserved; the water suction holes (20111) are uniformly distributed on the first transverse pipe (20112), the second transverse pipe (20113) and the vertical pipe (20114); the filter layer (2012) is composed of two layers of non-woven geotextile;
a plurality of prefabricated filter pipe structure units (201) are connected in series to form a vacuum filter pipe structure (2), splicing ports of first transverse pipes (20112) of the prefabricated filter pipe structure units (201) are spliced with splicing ports of first transverse pipes (20112) of adjacent prefabricated filter pipe structure units (201), and direct joints (202) are nested at the splicing positions; the splicing port of the second transverse pipe (20113) of the prefabricated filter pipe structure unit (201) is spliced with the splicing port of the second transverse pipe (20113) of the adjacent prefabricated filter pipe structure unit (201), and a direct joint (202) is nested at the splicing position;
the prefabricated filter pipe structure unit (201) at the tail end of the vacuum filter pipe structure (2) is characterized in that the splicing ports at the tail ends of a first transverse pipe (20112) and a second transverse pipe (20113) are nested with blocking structures (203); the front end of vacuum filtration pipe structure (2), the first violently pipe (20112) of prefabricated filtration pipe constitutional unit (201) is pieced together the interface and is connected with first conveyer pipe (3), and the junction nestification has interface (204), the second is violently nested on the piecing together the interface of pipe (20113) has block structure (203).
4. The bottom vacuum drainage sludge consolidation dewatering treatment apparatus of claim 3, wherein: the direct joint (202) and the interface (204) are both cylinders with two through ends, and the inner diameter of the direct joint (202) is matched with the outer diameter of the filter pipe (2011); the inner diameter of the interface (204) is matched with the outer diameter of the filter pipe (2011) and is matched with the outer diameter of the first delivery pipe (3); the shape of plugging structure (203) is the cylinder, the one end of cylinder is sealed, and the other end is opened, the internal diameter of plugging structure (203) open end and the external diameter phase-match of chimney filter (2011).
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| CN201921061531.6U CN210635873U (en) | 2019-07-09 | 2019-07-09 | Silt consolidation dehydration treatment device of bottom vacuum drainage |
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| CN201921061531.6U CN210635873U (en) | 2019-07-09 | 2019-07-09 | Silt consolidation dehydration treatment device of bottom vacuum drainage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847826A (en) * | 2020-07-31 | 2020-10-30 | 江苏科技大学 | Bottom vacuum negative pressure double-sided rapid sludge dewatering experiment and application system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847826A (en) * | 2020-07-31 | 2020-10-30 | 江苏科技大学 | Bottom vacuum negative pressure double-sided rapid sludge dewatering experiment and application system |
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