CN202610793U - Vacuum in-situ consolidation treatment device of large-area municipal domestic sludge - Google Patents
Vacuum in-situ consolidation treatment device of large-area municipal domestic sludge Download PDFInfo
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- CN202610793U CN202610793U CN 201220151982 CN201220151982U CN202610793U CN 202610793 U CN202610793 U CN 202610793U CN 201220151982 CN201220151982 CN 201220151982 CN 201220151982 U CN201220151982 U CN 201220151982U CN 202610793 U CN202610793 U CN 202610793U
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- 239000010802 sludge Substances 0.000 title claims abstract description 32
- 238000007596 consolidation process Methods 0.000 title claims abstract description 24
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 239000004746 geotextile Substances 0.000 claims description 9
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- Treatment Of Sludge (AREA)
Abstract
The utility model provides a vacuum in-situ consolidation treatment device of large-area municipal domestic sludge. The device comprises vertical drain boards, a horizontal drain layer, a water filtration pipe network, seal trenches, a seal film and vacuumizing equipment, wherein the horizontal drain layer is arranged on the upper surface of the sludge body to be treated; the vertical drain boards pass through the horizontal drain layer, a working cushion and the sludge body to be treated in sequence; the bottom ends of the vertical drain boards do not touch the bottom surface of the sludge body to be treated; the top ends of the vertical drain boards are exposed out of the horizontal drain layer and are bent and pressed into the horizontal drain layer; the seal trenches are distributed on the periphery of and inside the horizontal drain layer and are communicated with each other; the water filtration pipe network is formed by main filter pipes and branch filter pipes and is arranged in the horizontal drain layer; the branch filter pipes lie between the two main filter pipes and are communicated with the main filter pipes; the seal film is laid on the top surface of the horizontal drain layer; and the vacuumizing equipment is communicated with the main filter pipes. The device can be used for solving the present common problem that the large-area sludge sumps restrict the area storage capacities in the municipal refuse landfills.
Description
Technical field
The utility model relates to a kind of domestic sludge treating apparatus, particularly large tracts of land domestic sludge in-situ consolidation treating apparatus.
Background technology
The mud of sludge-tank landfill is generally the mud of municipal sewage plant; As the byproduct in the municipal sewage treatment process, mud is the multiphase and complicated system that comprises water, silt, fiber, plant and animal residues and various flco, colloid, organic matter, microorganism, germ, worm's ovum, heavy metal and various inorganic salts etc.The mud pollutant often has long term toxicity and non-degradable property, if unordered discharging will become dangerous secondary pollution source, gets into food chain through media such as atmosphere, underground water, surface water and soil, causes serious ecological risk, influences human health.
Landfill mud is through long biochemical reaction, and the entering of a large amount of rainwater, and moisture content surpasses 90%, almost is stream and moulds shape, does not have what bearing capacity to say.And low-lying ground or the nucleus in the sludge-tank of refuse landfill place, general position usually restricting the use of rubbish stockyard storage capacity, needs to handle to recover the place to use or stockyard storage capacity.Sludge-tank to established refuse landfill adopts sludge removal usually, and dispose in the strange land; Or landfill mud area peripheral edge is carried out the cofferdam reinforce, to guarantee mud landfill regional stability; And traditional environment engineering treatment method such as landfill once more after mud stir solidified.
With the immediate existing method for sludge treatment of the utility model be burying method once more after mud stir to solidify; After mud stir to solidify once more the mud original place that generally is only applicable among a small circle of burying method solidify, be difficult to even can't get material for large-area mud district, in processing procedure, need to add chemical agent or medicament; Cause soil body secondary pollution easily; Because need secondary transhipment and secondary landfill, construction needs the operation place big, and expense is high.
Therefore; How seeking the good construction equipment of a kind of simple economic consolidation effect is that mud in the large tracts of land sludge-tank is carried out effectively fixed on the spot intensive treatment, with recover that the place is used or rubbish to continue that heap fills out be the only stage which must be passed by of the common problem that runs into of present city refuse landfill.
The utility model content
The purpose of the utility model provides large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus; Solve through adopting simple mechanism, the technological means of less expensive is carried out the technical problem that can utilize again after original position is reinforced to existing large tracts of land municipal sludge.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
Large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus; Form by vertical drainage plate, horizontal rows water layer, filter pipe net, sealing ditch, diaphragm seal, vaccum-pumping equipment; Said horizontal rows water layer is arranged on to intend handles mud body upper surface, and said vertical drainage plate is worn horizontal rows water layer, working cushion layer and plan successively and handled the mud body, and plan processing mud body bottom surface is not touched in its bottom; The horizontal rows water layer is exposed on its top and bending is pressed in the horizontal rows water layer; Said sealing ditch is distributed in horizontal rows water layer periphery and inside and all sealing ditches thereof and communicates with each other, and said filter pipe net is made up of a dried chimney filter and a chimney filter, is arranged in the horizontal rows water layer; Said chimney filter lies across and between two dried chimney filters and with dried chimney filter, is communicated with; Said diaphragm seal is laid on horizontal rows water layer end face, and in the indentation sealing ditch of corner, said vaccum-pumping equipment is communicated with dried chimney filter.
Preferred scheme is following:
Said working cushion layer structure sequence from bottom to top is followed successively by: establishment cloth+5 layer chaste tree fragrant plant+1 layer filament non-woven geotextile+weathering bed of material layer is spun in 1 layer of mao bamboon net sheet+1; The said weathering bed of material is divided into two-layer up and down; Middle laying is spun establishment cloth for 1 layer, and the gross thickness of said working cushion layer is 1.0m～1.6m.
Said horizontal rows water layer is formed by stacking by long filament non-woven geotextile and medium-sand seam from bottom to top, and wherein, the thickness of medium-sand seam is 0.5m～0.8m, and the medium coarse sand mud content is not more than 5%, and transmission coefficient should be greater than 1 * 10
-2Cm/s.
Said vertical drainage plate is C template or D template, and it is side by side in the plane arranges that evenly the spacing d between any adjacent vertical drainage plate is 0.6m～0.8m, and it is apart from intending the bottom surface 0.5m that handles the mud body, and its upper end exceeds horizontal rows water layer 0.3m.
Said dried chimney filter is pvc pipe or plastic flexible pipe with a chimney filter, and wherein, the spacing of said dried chimney filter is 15m, and the spacing of said chimney filter is 3m; All have treatment hole on the tube wall of a said dried chimney filter and a chimney filter, and adopt transmission coefficient to be not less than the geotechnological filter membrane parcel of a dried chimney filter and a chimney filter itself, the stagger arrangement on tube wall of said treatment hole arranges that evenly its aperture R is 6mm, and pitch-row s is 20mm.
The degree of depth of said sealing ditch >=1.5 meter, bottom get into to intend and handle the mud body and be not less than 0.5m.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The said device of the utility model is simple, and is easy for installation, compares economy with traditional sludge treatment equipment, and consolidation effect is good.Can effectively cover the mud face through working cushion layer is set, improve ambient air quality and operating environment; Simultaneously, the working cushion layer that have certain thickness, multilayer geotechnique braided material is set also is equivalent to globality reinforcement flexible board preferably, top is continued heap is filled out rubbish and the place monolithic stability plays an important role; In addition, technique of soft soil foundation treatment is to utilize the negative pressure load that vacuumizes and produce to put on the mud body, and the mud body is with the increase of pressure differential and the continuity of squeeze time; The gentle quilt of water in the hole is constantly discharged; And the compression concretion of generation cohesive type, thereby sludge intensity is increased, compressibilty reduces.Because its containing shrinkage strain characteristic, effective accelerating construction progress carries out the rubbish preloading operation of some in advance and does not produce the stable danger of slippage.Adopt the method for sludge treatment of the said device of the utility model to abbreviate VIC (vacuum Vacuum as; Original position In situ; Fixed Consolidation) in method and the geotechnical engineering method of vacuum preloading soft soil foundation compare exist below difference: at first target is different; Use vacuum preloading method soft soil foundation in the geotechnical engineering; Purpose is in certain period, to quicken and accomplish the primary consolidation sedimentation of soft foundation to greatest extent, reduces settlement amount after construction, to satisfy the bearing capacity of foundation soil and the deformation requirements of carrying out infrastructure; And the utility model utilizes the vacuum preloading mode that municipal sludge is carried out the original position discharging consolidation, and short its intensity improves, and distortion reduces, and is to use in order to recover the mud place, satisfies and continues on it to pile to fill out rubbish, recovers the needs of stockyard storage capacity.Secondly, the treatment effect criterion is different, and vacuum preloading soft soil foundation design measurement index is generally soft soil consolidation degree and the sedimentation and deformation standard that whether tends towards stability in the geotechnical engineering; And the utility model is to handle municipal sludge with the vacuum preloading mode; In conjunction with its processing intent; Make under the mud prerequisite that discharging consolidation, volume compression, intensity increase on the spot; Whether the effect criterion is this sheet through the safety of reusing in the mud place that working cushion layer effectively covers, and continue heap above that and fill out the stability and safety property of rubbish and meet the demands.
The method for sludge treatment that adopts the said device of the utility model stirring solidification method commonly used in the Environmental Engineering has plurality of advantages: one, the utility model is a mud in-situ consolidation processing mode, has avoided stirring the shortcoming that solidification method is difficult to large tracts of land mud even can't get material; Two, handle in the mud process need not any chemical materials or medicament for the utility model, but adopts the mud original position discharging consolidation mode of environmental protection the most to make its gain in strength, has avoided the secondary pollution of the mud soil body; Three, the utility model in-situ treatment construction plant requires for a short time, and secondary transhipment, secondary environmental pollution problem such as landfill have once more been avoided in more environmental protection; Four, disposal cost more has economy, generally can reduce cost about 1/3; Five, social benefit is high, can begin rubbish heap in the processing procedure and fill out, and alleviates domestic waste discharging difficulty, can be widely used in refuse landfill mud in-situ treatment.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is that the utility model vacuum in-situ consolidation is handled the three-dimensional section of structure sequence that the mud method forms.
Fig. 2 vacuumizes system device plane sketch map is set.
Fig. 3 is that the vertical drainage board plane is arranged sketch map.
Fig. 4 is the treatment hole detail drawing of opening on a main chimney filter and the chimney filter.
Reference numeral: 1-plan processing mud body, 2-working cushion layer, 3-horizontal rows water layer, 4-vertical drainage plate, 5-sealing ditch, 6-diaphragm seal, 7-protection soil layer, 8-household garbage, the dried chimney filter of 9-, 10-prop up chimney filter, 11-vaccum-pumping equipment, 12-treatment hole.
The specific embodiment
Embodiment one, and large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus is installed to intend and handled around the mud body 1; Form by vertical drainage plate 4, horizontal rows water layer 3, filter pipe net, sealing ditch 5, diaphragm seal 6 and vaccum-pumping equipment 11; Said horizontal rows water layer 3 is arranged on plan and handles mud body 1 upper surface, and said vertical drainage plate 4 is worn horizontal rows water layer 3, working cushion layer 2 successively and intended and handle mud body 1, and plan processing mud body 1 bottom surface is not touched in its bottom; Horizontal rows water layer 3 is exposed on its top and bending is pressed in the horizontal rows water layer 3; Said sealing ditch 5 is distributed in horizontal rows water layer 3 peripheries and inside and all sealing ditches 5 thereof and communicates with each other, and said filter pipe net is made up of a dried chimney filter 9 and a chimney filter 10, is arranged in the horizontal rows water layer 3; Said chimney filter 10 lies across and between two dried chimney filters 9 and with dried chimney filter 9, is communicated with; Said diaphragm seal 6 is laid on horizontal rows water layer 3 end faces, and in the corner indentation sealing ditch 5, said vaccum-pumping equipment 11 is communicated with dried chimney filter 9.
Said working cushion layer 2 structure sequence from bottom to top is followed successively by: establishment cloth+5 layer chaste tree fragrant plant+1 layer filament non-woven geotextile+weathering bed of material layer is spun in 1 layer of mao bamboon net sheet+1; The said weathering bed of material is divided into two-layer up and down; Middle laying is spun establishment cloth for 1 layer, and the gross thickness of said working cushion layer 2 is 1.0m～1.6m.
Said horizontal rows water layer 3 is formed by stacking by long filament non-woven geotextile and medium-sand seam from bottom to top, and wherein, the thickness of medium-sand seam is 0.5m～0.8m, and the medium coarse sand mud content is not more than 5%, and transmission coefficient should be greater than 1 * 10
-2Cm/s.
Said vertical drainage plate 4 is C template or D template; It is side by side in the plane arranges that evenly the spacing d between any adjacent vertical drainage plate 4 is 0.6m～0.8m, and it is apart from intending the bottom surface 0.5m that handles mud body 1; Its upper end exceeds horizontal rows water layer 30.3m, referring to Fig. 3.
Said dried chimney filter 9 is pvc pipe or plastic flexible pipe with a chimney filter 10, and wherein, the spacing of said dried chimney filter 9 is 15m, and the spacing of said chimney filter 10 is 3m; All have treatment hole 12 on the tube wall of a said dried chimney filter 9 and a chimney filter 10; And adopt transmission coefficient to be not less than dried chimney filter 9 and wrap up with a chimney filter 10 geotechnological filter membranes own, the stagger arrangement on tube wall of said treatment hole 12 arranges that evenly its aperture R is 6mm; Pitch-row s is 20mm, referring to Fig. 4.
The degree of depth of said sealing ditch 5 >=1.5 meter, bottom get into to intend and handle mud body 1 and be not less than 0.5m.
Adopt a kind of large tracts of land municipal sludge vacuum in-situ consolidation processing method of said apparatus, it is characterized in that: step is following:
Step 1, carry out working cushion layer 2 constructions at end face that intend to handle mud body 1; Said working cushion layer 2 structure sequence from bottom to top is followed successively by: establishment cloth+5 layer chaste tree fragrant plant+1 layer filament non-woven geotextile+weathering bed of material layer is spun in 1 layer of mao bamboon net sheet+1; Diameter 40mm～80mm of said mao bamboon; Spacing 0.8m is two-layer about the said weathering bed of material is divided in length and breadth, gross thickness 1.0m ~ 1.6m; Middle laying is spun establishment cloth for 1 layer, and the gross thickness of said working cushion layer 2 is 1.0m～1.6m.
Step 2, lay horizontal rows water layer 3 at the end face of working cushion layer 2; Horizontal rows water layer 3 is formed by stacking by long filament non-woven geotextile and medium-sand seam from bottom to top, and wherein, the thickness of medium-sand seam is 0.5m ~ 0.8m, and the medium coarse sand mud content is not more than 5%, and transmission coefficient should be greater than 1 * 10
-2Cm/s.
Step 6, one circle sealing ditch 5 is set, and all sealing ditches 5 are communicated with each other along each periphery that vacuumizes subregion; Sealing ditch 5 is along vacuumizing the subregion periphery, and sealing ditch 5 excavations must meet the epiphragma requirement of holding one's breath, and sealing trench depth >=1.5 meter, bottom should get into to intend and handle mud body 1 and be not less than 0.5m.
Step 7, will expose the vertical drainage plate 4 part along continuous straight runs backfins of horizontal rows water layer 3 and imbed in the horizontal rows water layer 3;
Step 8, covering diaphragm seal 6 and shop on the horizontal rows water layer 3 when sealing ditch 5, the edge of diaphragm seal 6 is being inserted in the soil along sealing ditch 5,, vacuum preloading is being installed film device, assembling vaccum-pumping equipment 11 to guarantee the sealing around the diaphragm seal 6; Said diaphragm seal 6 by 3 layers of PVC vacuum diaphragm be positioned at PVC vacuum diaphragm upper and lower surfaces long filament non-woven geotextile topping fit and to form.
Step 9, startup vaccum-pumping equipment 11 vacuumize operation; Said vaccum-pumping equipment 11 is made up of centrifugal pump and jet case, and centrifugal pump adopts horizontal or submersible type, and lift reaches more than the 32m, and the vacuum when unloaded reaches more than the 730mmHg.For guaranteeing the stable of vacuum, the electrical equipment automaton can be set, intermittently bleed in order to control.The area 500m that every cover vaccum-pumping equipment design is born
2～700 m
2, the film outlet port that needs to reserve some can suitably be adjusted according to actual conditions in the scene.Vacuumizing the dead load 80kPa time is not less than 180 days, specifically confirms according to designing requirement.
Step 10, monitoring and detection are intended and are handled mud body 1, judge whether the fixed situation of mud meets design requirement; Said monitoring content includes but not limited to ground settlement observation, earth horizontal displacement observation, pore water pressure test, delaminating deposition test and vacuum observation; Detect content and include but not limited to boring extracting soil laboratory test, cone penetration test, vane shear test; Designing requirement generally combines Treatment of Sludge engineering purpose and site recovery instructions for use, includes but not limited to handle back sludge intensity index, Stability Control requirement and the requirement of sludge settling amount.
If step 11 does not reach as yet, can continue step 9 after a period of time, carry out step 10 again and reach designing requirement until the Treatment of Sludge index.Intend to handle mud body 1 reach fixed after, can above diaphragm seal 6, lay a layer thickness is that the protection soil layer 7 of 500mm is so that proceed the landfill of household garbage 8.But also repeating step two～step 10, then better processing effect.
Claims (6)
1.
A kind ofLarge tracts of land municipal sludge vacuum in-situ consolidation treating apparatus; Install to intend and handle mud body (1) on every side; It is characterized in that: form by vertical drainage plate (4), horizontal rows water layer (3), filter pipe net, sealing ditch (5), diaphragm seal (6) and vaccum-pumping equipment (11); Said horizontal rows water layer (3) is arranged on plan and handles mud body (1) upper surface, and said vertical drainage plate (4) is worn horizontal rows water layer (3), working cushion layer (2) successively and intended and handle mud body (1), and plan processing mud body (1) bottom surface is not touched in its bottom; Horizontal rows water layer (3) is exposed on its top and bending is pressed in the horizontal rows water layer (3); Said sealing ditch (5) is distributed in horizontal rows water layer (3) periphery and inside and all sealing ditches (5) thereof and communicates with each other, and said filter pipe net is made up of a dried chimney filter (9) and a chimney filter (10), is arranged in the horizontal rows water layer (3); Said chimney filter (10) lies across and between two dried chimney filters (9) and with dried chimney filter (9), is communicated with; Said diaphragm seal (6) is laid on horizontal rows water layer (3) end face, and in the corner indentation sealing ditch (5), said vaccum-pumping equipment (11) is communicated with dried chimney filter (9).
2. large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus according to claim 1; It is characterized in that: said working cushion layer (2) structure sequence from bottom to top is followed successively by: establishment cloth+5 layer chaste tree fragrant plant+1 layer filament non-woven geotextile+weathering bed of material layer is spun in 1 layer of mao bamboon net sheet+1; The said weathering bed of material is divided into two-layer up and down; Middle laying is spun establishment cloth for 1 layer, and the gross thickness of said working cushion layer (2) is 1.0m～1.6m.
3. large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus according to claim 1; It is characterized in that: said horizontal rows water layer (3) is formed by stacking by long filament non-woven geotextile and medium-sand seam from bottom to top; Wherein, The thickness of medium-sand seam is 0.5m～0.8m, and the medium coarse sand mud content is not more than 5%, and transmission coefficient should be greater than 1 * 10
-2Cm/s.
4. large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus according to claim 1; It is characterized in that: said vertical drainage plate (4) is C template or D template; It is side by side in the plane evenly arranges; Spacing d between any adjacent vertical drainage plate (4) is 0.6m～0.8m, and it is apart from intending the bottom surface 0.5m that handles mud body (1), and its upper end exceeds horizontal rows water layer (3) 0.3m.
5. large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus according to claim 1; It is characterized in that: a said dried chimney filter (9) and a chimney filter (10) are pvc pipe or plastic flexible pipe; Wherein, The spacing of said dried chimney filter (9) is 15m, and the spacing of said chimney filter (10) is 3m; All have treatment hole (12) on the tube wall of a said dried chimney filter (9) and a chimney filter (10); And adopt transmission coefficient to be not less than the geotechnological filter membrane parcel of a dried chimney filter (9) and a chimney filter (10) itself; Said treatment hole (12) stagger arrangement on tube wall is evenly arranged; Its aperture R is 6mm, and pitch-row s is 20mm.
6. large tracts of land municipal sludge vacuum in-situ consolidation treating apparatus according to claim 1 is characterized in that: the degree of depth >=1.5 of said sealing ditch (5) meter, bottom get into to intend and handle mud body (1) and be not less than 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151982 CN202610793U (en) | 2012-04-12 | 2012-04-12 | Vacuum in-situ consolidation treatment device of large-area municipal domestic sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220151982 CN202610793U (en) | 2012-04-12 | 2012-04-12 | Vacuum in-situ consolidation treatment device of large-area municipal domestic sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202610793U true CN202610793U (en) | 2012-12-19 |
Family
ID=47344505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220151982 Expired - Fee Related CN202610793U (en) | 2012-04-12 | 2012-04-12 | Vacuum in-situ consolidation treatment device of large-area municipal domestic sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202610793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309070A (en) * | 2021-06-01 | 2021-08-27 | 浙江大学 | Drainage moso bamboo for soft soil foundation treatment and construction method thereof |
| CN113896387A (en) * | 2021-11-03 | 2022-01-07 | 南京工业职业技术大学 | A combined sludge purification and dewatering structure based on thermal desorption technology and vacuum preloading technology and its construction method |
-
2012
- 2012-04-12 CN CN 201220151982 patent/CN202610793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309070A (en) * | 2021-06-01 | 2021-08-27 | 浙江大学 | Drainage moso bamboo for soft soil foundation treatment and construction method thereof |
| CN113896387A (en) * | 2021-11-03 | 2022-01-07 | 南京工业职业技术大学 | A combined sludge purification and dewatering structure based on thermal desorption technology and vacuum preloading technology and its construction method |
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