CN113058310A - Ecological water area sludge treatment method and system - Google Patents
Ecological water area sludge treatment method and system Download PDFInfo
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- CN113058310A CN113058310A CN202110456645.6A CN202110456645A CN113058310A CN 113058310 A CN113058310 A CN 113058310A CN 202110456645 A CN202110456645 A CN 202110456645A CN 113058310 A CN113058310 A CN 113058310A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 239000010802 sludge Substances 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009825 accumulation Methods 0.000 claims abstract description 100
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 238000005065 mining Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 241001464837 Viridiplantae Species 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- Chemical & Material Sciences (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The invention belongs to the technical field of ecological dredging of water areas, and particularly relates to a method and a system for treating sludge in an ecological water area; the sludge at the bottom of the reservoir is discharged and collected and then deposited and attached to the side slope of the water area, so that the purposes of sludge discharge and capacity expansion of the water area are achieved. The system comprises water-filtering and mud-storing equipment and sludge drainage and mining equipment, wherein the sludge drainage and mining equipment comprises a sludge suction pump and a drainage pipeline; the water and mud filtering and storing device comprises a mud accumulation bag, a concrete baffle is arranged on a boundary line of the mud accumulation bag and the bottom of a water area, the mud accumulation bag is longitudinally communicated with the bottom of a side slope from the top of the side slope, a mud inlet is formed in the position, located at an inflection point of the side slope, of the mud accumulation bag, a mud suction pump is connected with the mud inlet through a drainage pipeline, water is seeped out of a bag wall of the mud accumulation bag and is merged into the water area, and mud is deposited in the mud accumulation bag. The invention has the original purposes of environmental protection and energy conservation, adopts the idea of sludge treatment nearby, achieves the dual purposes of sludge treatment and environment improvement, and forms an overwater and underwater omnibearing environmental protection ecological system.
Description
Technical Field
The invention belongs to the technical field of ecological dredging of water areas, and particularly relates to a harmless ecological water area sludge treatment method and system.
Background
The water flow of natural river channels usually has a large amount of silt, the existence of the silt problem and the occurrence of the silt problem easily generate certain influence on water areas and hydraulic engineering built for river treatment and development, and the main influence mode is silt deposition.
The siltation of a water area is a natural phenomenon in which sediment carried in river water is settled in the water area, that is, the water area silts up. When river water carries silt to enter a water area, along with the continuous increase of the area of a water section, the flow rate and the sand-carrying capacity of the water are continuously decreased gradually, and the silt is deposited at the bottom, so that the water area is silted.
Currently, most of our reservoirs were built in the sixties and seventies of the last century, relatively speaking, the research on the sedimentation process and the analysis and calculation of sediment sedimentation are particularly deficient due to economic and technical limitations, and the reservoir design standards are generally low, and the consideration of the sediment discharge design is not comprehensive or an effective sediment discharge design is lacked.
At present, a plurality of reservoirs in China are quite lack of silt discharge design, the reservoirs are silted after being operated for a long time, the actual effective storage capacity of a waterway is greatly reduced, the benefits of irrigation, water supply, flood control and the like are reduced, especially the weather in the years is abnormal, and the silting of the reservoirs caused by large-area drought and rainstorm flood in China can generate quite large influence on the engineering of the reservoirs.
In essence, reservoir sedimentation is not only the encroachment of the reservoir capacity, but also waste of the good natural objective conditions (dam sites) for constructing the reservoir. At present, many reservoirs in China are basically built in mountains and basins, and some high-quality lands are inevitably occupied in future reservoir building, and the condition of immigration also occurs. The cost is far more than the dredging and recycling of the existing reservoir by taking the immigration compensation of the newly-built reservoir and the occupied land and the like into account. Therefore, it is necessary to apply advanced equipment and scientific and technical means to perform reservoir dredging engineering, fully exert the functions of the reservoir and prolong the service life of the reservoir.
Disclosure of Invention
In order to solve the problem of dredging treatment of the water area and construct a natural ecological water area, the invention provides an ecological water area sludge treatment method and system, which play a positive role in improving the ecological protection level of the water area, solving the water area siltation and improving the ecological environment of the water area and a drainage basin thereof.
The technical scheme of the invention is an ecological water area sludge treatment method, which is characterized in that the sludge in the water area is discharged and collected and deposited on the side slope of the water area to achieve the purpose of sludge discharge and volume expansion of the water area.
Further, the method specifically comprises the following steps: arranging a water filtering and mud storing device comprising a plurality of mud accumulation bags on the side slope of the water area, sending the mud at the bottom of the water area into the mud accumulation bags positioned at the natural inflection points of the side slope through the mud drainage and collection device, then naturally flowing the mud along the side slope body in the mud accumulation bags, enabling water to seep out of the mud accumulation bags and be blended into the water area along the side slope of the water area, and enabling the mud to be deposited in the mud accumulation bags and be fixedly combined with the side slope of the water area into a whole, so that the dredging of the water area and the side slope of the water area are naturally combined.
And further, if the water area comprises a reservoir, checking the amount of sludge which can be contained in the side slope of the reservoir, and determining that water filtering and sludge storage equipment is arranged on the side slope of the reservoir and/or the side slopes of upstream and downstream watersheds which are intersected with the reservoir according to the total amount of the sludge at the bottom of the reservoir.
Further, the part of the sludge accumulation sac above the water level line of the water area is planted with green plant fixing slopes during the period that the sludge in the sludge accumulation sac is dried and shrunk to form plasticity.
The technical scheme for completing the task of the invention also comprises an ecological water area sludge treatment system, which comprises water filtering and sludge storing equipment and sludge discharging and mining equipment, wherein the sludge discharging and mining equipment comprises a sludge suction pump and a drainage pipeline which are sunk into the sediment at the bottom of the water area; the water filtering and mud storing device comprises a mud accumulation bag densely distributed on a water area side slope, a concrete baffle is arranged on a boundary line of the mud accumulation bag and the water area bottom, the mud accumulation bag is longitudinally communicated with the side slope top to the side slope bottom, a mud inlet is formed in the position, located at a natural inflection point of the side slope, of the mud accumulation bag, a mud suction pump is connected with the mud inlet through a drainage pipeline, mud naturally flows along the side slope in the mud accumulation bag, water seeps out of a bag wall of the mud accumulation bag and is merged into the water area along the water area side slope, and the mud is deposited in the mud accumulation bag and is fixedly combined with the water area side slope into a whole, so that the water area dredging and the water area side slope achieve a natural combination state.
Furthermore, ecological piles are directly inserted in a dot matrix mode on the slope, the sludge accumulation bag is connected to the exposed section of the ecological piles and is opened by a plurality of ecological piles to form a polygonal prism-shaped hollow bag cavity, vertical clamping rails are arranged at the joint of the ecological piles and the sludge accumulation bag, clamping strips matched with the clamping rails are arranged on the sludge accumulation bag, the clamping strips are inserted into the clamping rails from pile tops of the ecological piles, and the sludge accumulation bag is stretched among the ecological piles.
Furthermore, silt accumulation bag includes a plurality of basin shape modular unit, is connected with the detachable closing cap on modular unit's the open-top, and several modular unit constitutes one along the slope direction of side slope, but the split connection between dismantling lateral wall, bottom surface between preceding, the back modular unit, but the split connection between the front and back closing cap.
Furthermore, the module units and the sealing covers, the bottom surfaces of the front module unit and the rear module unit and the front sealing cover and the rear sealing cover are connected by zippers, or a row of rope penetrating holes are formed in the edges of every two connected modules and are connected by reciprocating rope penetrating binding.
Furthermore, the bag body surface layer of the sludge accumulation bag comprises an inner multi-layer melt-blown material layer, a middle steel wire woven layer and an outer felting needle filter blanket which are bonded into a whole by adopting particle adhesives, the filtering precision of the sludge accumulation bag is larger than or equal to 600 meshes, the unit bearing capacity is larger than or equal to 50 times of the dead weight, and the extensibility is larger than 90%.
Furthermore, the steel wire braided layer is formed by braiding steel wires with the diameter of 0.1mm in a square mode of 1cm by 1cm, and the steel wires are obliquely braided at an included angle of 30 degrees with the horizontal line.
Furthermore, the ecological piles are fixed on the side slope by anchor rods or anchor cables, the ecological piles are mutually tied by inhaul cables, the inhaul cables are sequentially connected with the pile tops and the pile bottoms of the front ecological pile and the rear ecological pile, and an X-shaped wire net is woven between the two ecological piles.
Furthermore, green plants are planted on the sludge accumulation bag above the water level line of the water area, and root systems of the green plants penetrate through the bottom surface of the sludge accumulation bag and are pricked into the slope body.
Furthermore, a one-stage or multi-stage filter screen is arranged on a suction inlet of the sludge suction pump.
Compared with the prior art, the invention has the advantages that:
the ecological water area sludge treatment method provided by the invention inherits the original purposes of environmental protection and energy conservation, adopts the concept of sludge nearby treatment, filters water and deposits on the side slope of the water area after the sludge at the bottom of the reservoir is pumped and collected, and can plant green plants on the side slope during the period of drying and shrinkage of the sludge to form plasticity, thereby further preventing the soil body of the side slope from losing, achieving the double purposes of sludge treatment and environment improvement, and forming an overwater and underwater all-around environment-friendly ecological system.
The ecological water area sludge treatment system provided by the invention has the advantages that the sludge accumulation sacks are arranged on the side slope, the sludge is intensively fed into the sludge accumulation sacks from a sludge inlet at the top of the side slope, the sludge naturally flows to the bottom of the water area along the slope body of the side slope in the sludge accumulation sacks until being blocked by the sack walls of the sludge accumulation sacks, water is melted into the water area through the sack walls, the sludge is continuously deposited in the sludge accumulation sacks until the sludge accumulation sacks are fully stored, and the sludge is stably fixed on the side slope and is fixedly combined with the side slope of the water area into a whole, so that the water area dredging and the side slope of the water area are naturally combined.
The sludge accumulation bag is fixed on the side slope through a steel ecological pile, the ecological pile is fixed through an anchor rod or an anchor rope according to different slope body structures and slope body stability conditions, and meanwhile, the ecological pile is mutually tied through an inhaul cable, mutually supported and mutually supported, and the strength requirement for intercepting sludge is met.
The sludge accumulation bag adopts a modularized design concept, the sludge accumulation bag and the ecological pile are connected in a socket joint manner, and can be combined at will under different use working conditions, and meanwhile, the modularized design can greatly reduce the production cost; the silt accumulation bag is flexible adjustable structure, and the distribution form, the density of ecological stake can carry out nimble adjustment according to side slope cross-section form to it is even to make the strain water store up mud equipment atress on the side slope, stable in structure, with the better firm overall structure of formation of side slope.
The invention has advanced conception, ingenious design and low implementation cost, is a green and environment-friendly call correspondingly, opens up a new development direction for sludge treatment in water areas of China, and is suitable for popularization and application in various advanced reservoirs across the country.
The research system breaks through the traditional dredging mode, finishes the ground filling and the secondary pollution caused by the ground filling, converts the ground filling and the secondary pollution into the separation of mud and water by utilizing the natural dead weight of the large inclination angle, and finally forms a new system for fully combining ecological greening and slope management and carrying out harmless decomposition treatment.
Drawings
FIG. 1 is a schematic diagram of the initial stage of sludge treatment.
Fig. 2 is a schematic diagram of the end stage of sludge treatment.
Fig. 3 is a structural schematic view of a sludge accumulation sac and an ecological pile.
Fig. 4 is an assembly diagram of the module unit.
Fig. 5 is a schematic of the facing of a sludge accumulation bladder.
Fig. 6 is a schematic diagram of the knitting pattern of the steel wire braid layer.
Fig. 7 is a schematic structural diagram of a square frame state of the support frame.
Fig. 8 is a schematic structural view of the rotating arm.
Fig. 9 is a schematic structural diagram of a triangular prism frame state of the support frame.
In the figure: 1-side slope; 2-a sludge body; 3-sludge suction pump; 4-water area; 5-green planting; 6-sludge accumulation sacks; 6.1-modular unit; 6.2-sealing cover; 6.3-clamping strip; 6.4-multilayer melt-blown material layer; 6.5-steel wire braid layer; 6.6-felting needle filter blanket; 7-concrete block; 8-a sludge inlet; 9-pumping pipeline; 10-anchor cable; 11-a pull cable; 12-bank protection; 13-ecological piles; 13.1-rail clamping; 14-a support frame; 14.1-upright post; 14.2-cross-section frame; 14.3-fixed node; 14.4-detachable node; 14.5-hinged node; 14.6-rotating arm; 14.7-connecting sheet; 15-a support wall; 16-a pressure bar.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. The drawings are only for the purpose of illustrating the technology of the invention and are not to be construed as representing actual proportions or actual shapes of products, wherein like reference numerals indicate identical or functionally similar elements.
In this context, "parallel", "perpendicular", and the like are not strictly mathematical and/or geometric limitations, but may also include tolerances as would be understood by one skilled in the art and allowed for in the manufacture or use of the product. In addition, "perpendicular" includes not only mutually perpendicular in which two objects are directly connected in space but also mutually perpendicular in which two objects are not connected in space.
The ecological water area sludge treating method is based on the principle of near sludge treatment, and the sludge at the bottom of the reservoir is deposited on the side slope 1 of the water area to reach the aim of water area sludge discharge and capacity expansion.
The method specifically comprises the following steps: and (3) carrying out desilting self-weight checking calculation by combining with the geological characteristics of the side slope, determining a desilting arrangement combination mode by evaluating the self-stability capability of the side slope, and adjusting the desilting structure in a dynamic mode. Wherein, the desilting self-check calculation comprises the calculation of the storage capacity, the calculation of the total square amount of the water bottom silt body 2, the slope inclination of the slope body and the volume of the slope body. The evaluation method of slope self-stability refers to a stability analysis method model recorded in paragraphs 0098 to 0164 of the specification of the publication of an invention patent with patent number 202010144139.9, which is filed by the applicant of the present application, namely an evaluation method of stability of an inverted arch retaining wall suitable for loess slope reinforcement.
After the information is determined, arranging a water filtering and mud storing device comprising a plurality of mud accumulation bags 6 on the side slope 1 of the water area, sending the mud at the bottom of the water area into the mud accumulation bags 6 positioned at the natural inflection points of the side slope through the mud drainage and collection device, then naturally flowing the mud along the side slope 1 in the mud accumulation bags 6, seeping water from the mud accumulation bags 6, blending the water into the water area 4 along the side slope of the water area, depositing the mud in the mud accumulation bags 6, finally limiting the mud on the side slope 1 by the mud accumulation bags, and consolidating the mud and the side slope of the water area into a whole, so that the dredging of the water area and the side slope of the water area are naturally combined, the storage capacity is increased, the water area is full, and the risk of dam collapse is reduced.
With the continuous discharge of water in the sludge accumulation sacks, the sludge accumulation sacks are planted on green plants 5 for fixing slopes at the parts above the water level line of the water area during the drying shrinkage and plasticity formation of the sludge in the sludge accumulation sacks. The green plants 5 are rooted, and the root systems of the green plants 5 penetrate through the sludge accumulation bags and are planted in the slope body, so that the sludge accumulation bags are further prevented from sinking, and the soil body of the slope is prevented from losing.
If the water area contains the reservoir, after the amount of the sludge which can be contained in the side slope of the reservoir is checked, the amount of the sludge which can be contained in the side slope of the reservoir is judged according to the total amount of the 2-square-volume body of the bottom of the reservoir, the residual amount is calculated, water filtering and sludge storing equipment with the same carrying amount is arranged on the side slopes of the upstream and downstream watersheds which intersect with the reservoir, and the residual amount is contained on the side slopes of the upstream and downstream watersheds which intersect with the reservoir, so that a reverse water-whirling ecological slope fixing system is formed.
As shown in fig. 1 and 2; a processing system applying the water area sludge ecological treatment method comprises water filtering and sludge storing equipment and sludge discharging and mining equipment, wherein the sludge discharging and mining equipment comprises a sludge suction pump 3 and a pumping pipeline 9, wherein the sludge suction pump is sunk into a sludge body 2 at the bottom of a water area; the water filtering and mud storing device comprises a mud accumulation bag 6 densely distributed on a water area side slope 1, a concrete baffle 7 is arranged on a boundary line between the mud accumulation bag 6 and the water area bottom, the concrete baffle 7 prevents the mud accumulation bag 6 from sinking after the extraction of the mud, the inside of the mud accumulation bag 6 is longitudinally communicated from the top of the side slope to the bottom of the side slope, a mud inlet 8 is arranged at the natural inflection point position of the side slope of the mud accumulation bag 6, a mud suction pump 3 is connected with the mud inlet 8 through an extraction pipeline 9, the mud naturally flows along the side slope 1 in the mud accumulation bag 6, the water is seeped from the bag wall of the mud accumulation bag 6 and is fused into the water area 4 along the water area side slope, the mud is deposited in the mud accumulation bag 6 and is fixedly combined with the water area side slope into a whole, so that the dredging of the water area and the water area side; thereby achieving the purposes of dredging and not losing reservoir water.
Referring to fig. 3 and 4 again; ecological pile 13 has been directly inserted to dot matrix on slope 1, silt accumulates bag 6 and connects on the section that exposes of ecological pile 13, is opened by a plurality of ecological pile 13 and forms the hollow bag chamber of polygon prism form, is used for holding silt in the bag chamber, ecological pile 13 and silt accumulate bag 6 junction are provided with vertical card rail 13.1, be provided with card strip 6.3 that agrees with card rail 13.1 on the silt accumulates bag 6, card strip 6.3 inserts in the card rail from the pile top of ecological pile 13, stretch-draw silt accumulation bag 6 between a plurality of ecological pile 13 for silt accumulates bag 6 and fixes fast on ecological pile 13.
The green plants 5 are planted on the sludge accumulation bag 6 above the water level line of the water area, root systems of the green plants 5 penetrate through the bottom surface of the sludge accumulation bag 6 and are pricked into the slope body of the side slope 1 to absorb nutrients to the soil body, and meanwhile, the root systems of the green plants are pricked into the soil body to achieve the purpose of stabilizing the side slope.
In a preferred embodiment of the present embodiment, the sludge accumulating bag 6 is an elongated bag, an opening is provided at the upper end thereof to serve as the sludge inlet 8, the sludge accumulating bag 6 is placed between two rows of the ecological piles 13, the fastening strips 6.3 abutting against the ecological piles 13 are arranged on the waist of the sludge accumulating bag 6, and the sludge accumulating bag 6 is set to be as long as the side slope. When the green plants need to be planted, the top surface of the sludge accumulation bag 6 is notched. The sludge accumulation bag 6 has high production cost and limited application scene.
In order to reduce the production costs of the sludge accumulating bladder 6 and at the same time facilitate installation on site, the sludge accumulating bladder 6 is of modular construction. In another preferred scheme of the embodiment, the sludge accumulation bag 6 comprises a plurality of basin-shaped module units 6.1, the top openings of the module units 6.1 are connected with detachable sealing covers, the module units form a row along the gradient direction of the slope 1, the front module unit 6.1 and the rear module unit 6.1 are not provided with side walls, the bottom surfaces are detachably connected, and the sealing covers 6.2 are detachably connected to form a sludge circulation channel. The length of the sludge accumulation bag 6 can be adjusted at will through the number of the connected module units 6.1, the sealing cover 6.2 of the module unit 6.1 at any position can be detached, the position of the sludge inlet can be adjusted at proper time, and when green plants need to be planted, the sealing cover 6.2 is taken down. The sludge accumulation sacks 6 in the form are produced in a factory in a batch mode and can be used in any terrain and in any area.
Specifically, the module unit 6.1 and the sealing covers, the bottom surfaces of the front and rear module units 6.1 and the front and rear sealing covers 6.2 are connected by zippers, or a row of rope penetrating holes are arranged on the edges of two-two connected modules and are in reciprocating rope penetrating binding connection, or in tenon-and-mortise meshed connection.
As shown in fig. 5; the bag body surface layer of the sludge accumulation bag 6 comprises an inner multi-layer melt-blown material layer 6.4, a middle steel wire woven layer 6.5 and an outer felting needle filter blanket 6.6 which are bonded into a whole by adopting particle adhesives. Barb-shaped or zigzag-shaped prickles extend out of the outer surface of the prickle filter blanket 6.6 for protection and reinforcement, and the friction force between the sludge accumulation sac 6 and the slope and between the sludge accumulation sac 6 and the sludge accumulation sac 6 is increased. The multilayer melt-blown material layer 6.4 is used as mud separation drainage, and due to the scouring of perennial water flow, the texture of the sludge at the bottom of the reservoir is fine, so that the filtering precision of the multilayer melt-blown material layer 6.4 is more than or equal to 600 meshes, and the effect that only water is allowed to pass through and impurities are blocked can be achieved. The steel wire braided layer 6.5 is used for bearing, and the unit bearing capacity is greater than or equal to 50 times of dead weight, and the extensibility is greater than 90%. As shown in fig. 6; in order to meet the strength requirement of the sludge accumulation sacks 6 and reduce the self weight, the steel wire braided layer 6.5 is formed by braiding steel wires with the diameter of 0.1mm in a square of 1cm by 1cm, and the steel wires are obliquely braided at an included angle of 30 degrees with the horizontal line.
In the initial construction stage, an ecological pile 13 is fixed on a side slope 1 by adopting an anchor rod or an anchor cable 10, and according to different side slope body structures and in combination with a side slope self-stability capability evaluation result, the anchor rod or the anchor cable is selected for supporting, the ecological pile 13 is of a steel pipe structure, and the anchor rod or the anchor cable penetrates through the ecological pile 13 and is connected with the ecological pile 13. The ecological piles 13 are mutually tied by adopting the guy cables 11, the guy cables 11 are sequentially connected with the pile tops and the pile bottoms of the front ecological pile and the rear ecological pile, and an X-shaped wire net is woven between the two ecological piles 13.
In order to prevent stones and impurities with large particle size at the bottom of the reservoir from being sucked into the sludge suction pump 3 to cause damage to a pump body of the sludge suction pump 3 or blockage of the extraction pipeline 9, a one-stage or multi-stage filter screen is arranged on a suction inlet of the sludge suction pump 3 to remove the impurities with large particle size outside.
As shown in figure 2, in the later stage of sludge treatment, an ecological frame revetment 12 is arranged on the top surface of the side slope 1 and is connected with a sludge accumulation bag 6 to form a complete sludge treatment and side slope protection system.
As shown in fig. 7, 8, 9; the ecological frame comprises a polygonal supporting frame 14, a closed circular band type flexible supporting wall 15 and a plurality of pressure bars 16, wherein the supporting wall 15 is sleeved in the supporting frame 14, the pressure bars 16 are distributed in a ring of the supporting wall 15, the pressure bars 16 correspond to upright posts 14.1 on the supporting frame one by one, the supporting wall 15 is clamped between the pressure bars 16 and the upright posts 14.1, the perimeter of the supporting wall 15 is equal to the perimeter of a section frame 14.2 of the supporting frame, namely the supporting wall 15 just fully covers the side face of the supporting frame 14. The supporting frame 14 and the supporting wall 15 adopt a split structure, and can be independently replaced, so that the subsequent maintenance cost is reduced. The support wall and the surface layer of the sludge accumulation sack are of the same structure.
The two ends of the pressure lever 16 and the upright post 14.1 extend out of the supporting wall 15, and the extending range of the pressure lever 16 and the upright post 14.1 are bound and connected. The compression bar 16 and the upright post 14.1 can be connected by steel wires or can be connected by customized pipe fittings.
The supporting frame 14 is a square frame, a cross-section frame 14.2 of the supporting frame 14 comprises a fixed node 14.3, a detachable node 14.4 and two hinged nodes 14.5 located at opposite angles, two side rods forming the cross-section frame 14.2 are respectively connected to one hinged node 14.5 as rotating arms 14.6, the other end of each rotating arm 14.6 is connected to the detachable node 14.4, the detachable nodes are disconnected, a stand column between an upper detachable node and a lower detachable node is detached, the two rotating arms 14.6 are fixedly connected after being rotated to be parallel, the square frame is deformed into a triangular prism frame, and the supporting wall 15 comprises two types with different circumferences and is used for adapting to the supporting frames 14 in different forms. The fixed nodes prevent the support frame from deforming, namely the side rods and the upright columns of the section frame on the fixed nodes are welded and connected.
In particular, the two rotating arms 14.6 can be connected by a pipe hoop or a pipe buckle, or welded.
The two ends of the upright column on the hinged joint 14.5 and the detachable joint 14.4 axially extend out to form screw rods, the two ends of the rotating arm 14.6 are connected with connecting pieces 14.7 which are horizontally arranged, one connecting piece 14.7 is provided with a through hole matched with the screw rod, the connecting piece is sleeved on the screw rod on the hinged joint, the other connecting piece 14.7 is provided with an open slot matched with the diameter of the screw rod, the connecting piece is clamped on the screw rod on the detachable joint, and the screw rod is connected with a nut which clamps and fixes the connecting piece.
The bottom of the supporting frame 14 is connected with an anchor cable, the ecological piles are mutually tied by adopting a guy cable, the guy cable is sequentially connected with the pile tops and the pile bottoms of the front ecological pile and the rear ecological pile, an X-shaped wire net is woven between the two ecological piles, and the guy cable extends to cross-link the supporting frame 14. The ecological piles and the ecological frames are connected into a whole by the inhaul cables, and are mutually supported and supported, and the side slope and the road surface form a complete supporting system.
The ecological frame of the invention keeps the basic functions of the existing concrete prefabricated ecological frame, and simultaneously, the basic structure of the ecological frame can be changed according to the regional position of the side slope, thereby increasing the combination mode of the ecological frame.
The invention inherits the original purposes of environmental protection and energy saving, adopts the idea of sludge nearby treatment, filters water and deposits on the side slope of the water area after the sludge at the bottom of the reservoir is extracted, and can plant green plants on the side slope during the drying shrinkage of the sludge to form plasticity, thereby further preventing the soil body of the side slope from losing, achieving the dual purposes of sludge treatment and environmental improvement and forming an overwater and underwater all-round environment-friendly ecological system.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for treating sludge in an ecological water area is characterized by comprising the following steps: the sludge in the water area is discharged and collected and deposited on the side slope (1) of the water area so as to achieve the purpose of sludge discharge and expansion of the water area.
2. The ecological water area sludge treatment method of claim 1, comprising: arranging water-filtering and mud-storing equipment comprising a plurality of mud accumulation bags (6) on a side slope (1) of a water area, sending mud at the bottom of the water area into the mud accumulation bags (6) positioned at natural inflection points of the side slope through the mud drainage and collection equipment, naturally flowing the mud along the slope body of the side slope (1) in the mud accumulation bags (6), seeping water from the mud accumulation bags (6) and blending the water area (4) along the side slope of the water area, and solidifying the mud in the mud accumulation bags (6) into a whole with the side slope of the water area, so that the dredging of the water area and the side slope of the water area are naturally combined.
3. The ecological water sludge treatment method of claim 2, wherein: if the water area comprises the reservoir, the amount of the sludge which can be contained in the side slope of the reservoir is calculated, and water filtering and sludge storage equipment is determined to be arranged on the side slope of the reservoir and/or the side slopes of upstream and downstream watersheds which are intersected with the reservoir according to the total amount of the sludge body (2) at the bottom of the reservoir.
4. The ecological water area sludge treatment method of claim 3, wherein: and in the part of the sludge accumulation bag (6) above the water level line of the water area, green plants (5) are planted on the sludge accumulation bag (6) to fix the slope during the sludge in the sludge accumulation bag (6) is dried and shrunk to form plasticity.
5. A treatment system for applying the ecological water sludge treatment method of any one of claims 1 to 4, wherein: the device comprises water-filtering and mud-storing equipment and mud discharging and mining equipment, wherein the mud discharging and mining equipment comprises a mud suction pump (3) and a gas extraction pipeline (9) which are sunk into a mud body (2) at the bottom of a water area; the water filtering and mud storing device comprises mud accumulation bags (6) densely distributed on a water area side slope (1), a concrete baffle (7) is arranged on a boundary line between the mud accumulation bags (6) and the water area bottom, the mud accumulation bags (6) are longitudinally communicated from the top of the side slope to the bottom of the side slope, a mud inlet (8) is formed in the position, located at a natural inflection point of the side slope, of each mud accumulation bag (6), a mud suction pump (3) is connected with the mud inlet (8) through a drainage pipeline (9), mud naturally flows along the slope of the side slope (1) in each mud accumulation bag (6), water seeps out from a bag wall of each mud accumulation bag (6) and is merged into the water area (4) along the water area side slope, and is deposited in the mud accumulation bags (6) and is integrally consolidated with the water area side slope, so that the water area dredging and the water area side slope reach a natural combination state.
6. The ecological water sludge treatment system of claim 5 wherein: ecological piles (13) are directly inserted in a dot matrix mode on the side slope (1), a sludge accumulation bag (6) is connected to an exposed section of the ecological piles (13) and is opened by a plurality of ecological piles (13) to form a polygonal-prism-shaped hollow bag cavity, a vertical clamping rail (13.1) is arranged at the joint of the ecological piles (13) and the sludge accumulation bag (6), clamping strips (6.3) matched with the clamping rails (13.1) are arranged on the sludge accumulation bag (6), the clamping strips (6.3) are inserted into the clamping rails from the pile tops of the ecological piles (13), and the sludge accumulation bag (6) is tensioned among the ecological piles (13).
7. The ecological water sludge treatment system of claim 6 wherein: the sludge accumulation bag (6) comprises a plurality of basin-shaped module units (6.1), a detachable sealing cover is connected to the top opening of each module unit (6.1), the module units form a row along the gradient direction of the side slope (1), the side wall and the bottom surface of each front module unit and the rear module unit (6.1) are detachably connected, and the front sealing cover and the rear sealing cover (6.2) are detachably connected.
8. The ecological water sludge treatment system of claim 7 wherein: the module units (6.1) are connected with the sealing covers, the bottom surfaces of the front module unit (6.1) and the rear module unit (6.1) and the front sealing cover (6.2) by zippers, or a row of rope penetrating holes are formed in the edges which are connected in pairs and are connected in a reciprocating rope penetrating binding mode.
9. An ecological waters sludge treatment system as claimed in claim 6 or claim 7 wherein: the bag body surface layer of the sludge accumulation bag (6) comprises an inner multi-layer melt-blown material layer (6.4), a middle steel wire woven layer (6.5) and an outer needle filter blanket (6.6) which are bonded into a whole by particle adhesives, the filtering precision of the sludge accumulation bag (6) is more than or equal to 600 meshes, the unit bearing capacity is more than or equal to 50 times of the dead weight, and the extensibility is more than 90%; the steel wire braided layer (6.5) is formed by braiding steel wires with the diameter of 0.1mm in a square of 1cm by 1cm, and the steel wires are obliquely braided at an included angle of 30 degrees with the horizontal line.
10. The ecological water sludge treatment system of claim 9 wherein: the ecological piles (13) are fixed on the side slope (1) by anchor rods or anchor cables (10), the ecological piles (13) are mutually tied by stay cables (11), the stay cables (11) are sequentially connected with the pile tops and the pile bottoms of the front ecological pile and the rear ecological pile, and an X-shaped wire mesh is woven between the two ecological piles (13); green plants (5) are planted on the sludge accumulation bag (6) above the water level line of the water area, and root systems of the green plants (5) penetrate through the bottom surface of the sludge accumulation bag (6) and are pricked into the slope body of the side slope (1).
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| CN113058310B (en) | 2024-04-05 |
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