CN115010311A - System for treating landfill leachate membrane concentrate - Google Patents
System for treating landfill leachate membrane concentrate Download PDFInfo
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- CN115010311A CN115010311A CN202210808901.8A CN202210808901A CN115010311A CN 115010311 A CN115010311 A CN 115010311A CN 202210808901 A CN202210808901 A CN 202210808901A CN 115010311 A CN115010311 A CN 115010311A
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- scraper
- pipe
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 25
- 239000012528 membrane Substances 0.000 title claims abstract description 22
- 239000012141 concentrate Substances 0.000 title claims description 17
- 238000001704 evaporation Methods 0.000 claims abstract description 112
- 230000008020 evaporation Effects 0.000 claims abstract description 89
- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 8
- 239000011253 protective coating Substances 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003864 humus Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/042—Prevention of deposits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a system for treating landfill leachate membrane concentrated solution, which comprises: a pretreatment system comprising an evaporation device; the device comprises an evaporation tank, an evaporation tank bottom and an installation shaft, wherein the evaporation tank bottom is fixedly installed at the bottom of the evaporation tank, the diameter of the upper end of the evaporation tank bottom is larger than that of the lower end of the evaporation tank bottom, and the installation shaft is rotatably installed in the evaporation tank; descaling equipment, descaling equipment installs in evaporation plant, descaling equipment includes coupling assembling, drive assembly, first scraper blade and second scraper blade, drive assembly fixed mounting is on the installation axle, coupling assembling is used for connecting first scraper blade and drive assembly, drive assembly is used for driving first scraper blade and carries out the scale removal to the evaporating pot body and evaporating pot bottom surface, the second scraper blade is installed at first scraper blade downside. The invention can regularly descale the evaporation device, which is beneficial to prolonging the service life of the equipment.
Description
Technical Field
The invention relates to the technical field of landfill leachate treatment, in particular to a treatment system for landfill leachate membrane concentrated solution.
Background
With the rapid expansion of urban construction scale and the gradual improvement of living standard of people, the yield of household garbage is larger and larger. The reduction and harmless treatment of domestic garbage become an important problem to be solved urgently in the environmental field of China. The main components of the landfill leachate depend on the landfill process of the landfill, the types and relevant proportions of the wastes processed by the landfill, the service time of the landfill, the climatic conditions, the compaction condition of the wastes, the stage of the landfill, the collection and drainage mode of the landfill leachate and other factors. Due to the influence of the above factors, the landfill leachate has the characteristics of complex water quality, high pollutant concentration, large water quantity change and the like, and the change rule is often difficult to master and control. Meanwhile, the leachate also has the water quality characteristics of strong toxicity, more difficultly-degradable substances, high nitrogen, low phosphorus and the like, so that the leachate treatment process is complicated, and the difficulty in leachate treatment is increased.
At present, the traditional evaporation techniques applied in the landfill leachate concentrate treatment include single-effect evaporation, multiple-effect evaporation, MVR evaporation and the like. However, at the operating temperature of the above technology, the chloride ions enriched in the concentrated solution can cause severe corrosion to the equipment, and meanwhile, the high-concentration humus and inorganic salt ions in the concentrated solution can easily cause severe scaling of the equipment, thereby reducing the evaporation energy efficiency ratio and lowering the operation stability.
Disclosure of Invention
The invention aims to solve the defects that high-concentration humus and inorganic salt ions in a concentrated solution in the prior art are easy to cause serious scaling of equipment, the evaporation energy efficiency ratio is reduced, and the operation stability is reduced, and provides a treatment system for a landfill leachate membrane concentrated solution.
In order to achieve the purpose, the invention adopts the following technical scheme:
a landfill leachate membrane concentrate treatment system comprising:
a pretreatment system comprising an evaporation apparatus;
the evaporation device is positioned at the tail end of the pretreatment system and comprises an evaporation tank body, an evaporation tank bottom and an installation shaft, the evaporation tank bottom is fixedly installed at the bottom of the evaporation tank body, the diameter of the upper end of the evaporation tank bottom is larger than that of the lower end of the evaporation tank bottom, and the installation shaft is rotatably installed in the evaporation tank;
descaling equipment, descaling equipment installs in evaporation plant, descaling equipment includes coupling assembling, drive assembly, first scraper blade and second scraper blade, drive assembly fixed mounting is on the installation axle, coupling assembling is used for connecting first scraper blade and drive assembly, drive assembly is used for driving first scraper blade and carries out the scale removal to the evaporating pot body and evaporating pot bottom surface, second scraper blade fixed mounting is at first scraper blade downside.
Preferably, the driving assembly comprises a threaded rod, an installation block and fixing rings, the fixing rings are fixedly installed at two ends of an installation shaft respectively, an installation opening is formed in the fixing ring, the threaded rod is installed between the two fixing rings, two ends of the threaded rod are rotatably installed in the installation opening respectively, a penetrating opening is formed in the installation block and is in threaded connection with the threaded rod, an auxiliary motor is fixedly installed at the top end of the threaded rod, and a main motor is fixedly installed on the installation shaft.
Preferably, coupling assembling is including installation pipe, connecting pipe, installation pole and elastic element, installation pipe fixed mounting is on the installation piece side, connecting pipe threaded connection is in the installation pipe, installation pole slidable mounting is in the connecting pipe, elastic element one end fixed mounting is on the installation piece and lie in the installation intraductally, and the other end is fixed installs on the installation pole, first scraper blade fixed mounting is kept away from the connecting pipe on the one end of installation pole.
Preferably, one surface of the second scraper far away from the mounting rod is inclined inwards, and the inclined surface of the second scraper is the same as the inclined angle of the bottom of the evaporation tank.
Preferably, evaporation plant still includes inlet pipe, discharging pipe and bottom, inlet pipe fixed mounting is on evaporating pot body side, discharging pipe fixed mounting is on evaporating pot body top surface, bottom and evaporating pot bottom threaded connection.
Preferably, a groove is formed in the middle of one end, close to the first scraper, of the mounting rod, the first scraper is inserted into the groove, a bolt is inserted into the mounting rod, the bolt penetrates through the first scraper, two nuts are connected to the bolt in a threaded manner, and the nuts are located on two sides of the mounting rod respectively.
Preferably, the pretreatment system further comprises a sedimentation device, a filtering device and a preheating device, the filtering device is arranged close to the sedimentation device, the preheating device is arranged close to the filtering device, the sedimentation device and the preheating device are connected through a conveying pipe, and one end, far away from the evaporation device, of the feeding pipe is fixedly connected with the upper side of the preheating device.
Preferably, a filter plate is fixedly arranged in the filter device, and the conveying pipeline is fixedly arranged on the side surface of the filter device and is positioned below the filter plate.
Preferably, the surfaces of the evaporation device and the descaling equipment are provided with anticorrosive and acid-proof protective coatings.
Compared with the prior art, the invention has the beneficial effects that:
1. after the pretreatment system stops working, the driving assembly is started to drive the connecting assembly to move up and down and move circularly in the evaporating tank body and the bottom of the evaporating tank, so that a first scraper and a second scraper which are arranged on the connecting assembly descale the inner walls of the evaporating tank body and the bottom of the evaporating tank, when the first scraper is in contact with the connecting assembly at a high height, the first scraper descale the inner wall of the evaporating tank body in the up-down and rotating processes, because the inner wall of the bottom of the evaporating tank is an inclined wall, the descaling effect of the first scraper on the inclined wall is poor, and the outer wall of the second scraper below the first scraper descale the inclined wall of the bottom of the evaporating tank, the scaling in an evaporating device is cleaned, the evaporation energy efficiency ratio in the next working process of equipment is ensured, the running stability of the equipment is improved, and the service life of the equipment is prolonged;
2. the angle that the second scraper blade leaned inwards is the same with the angle that the evaporating pot bottom leaned inwards, makes the second scraper blade fully contact with evaporating pot bottom inner wall surface to promote the scale removal effect to evaporating pot bottom inner wall surface.
Drawings
Fig. 1 is a schematic front view of a system for treating a landfill leachate membrane concentrate according to the present invention;
fig. 2 is a sectional view showing the internal structure of an evaporation device of a landfill leachate membrane concentration treatment system according to the present invention;
FIG. 3 is a schematic structural view of a descaling device of a landfill leachate membrane concentrate treatment system according to the present invention;
FIG. 4 is a schematic view of a portion of the enlarged structure of A in FIG. 3;
fig. 5 is a schematic cross-sectional view of a connection assembly of a landfill leachate membrane concentrate treatment system according to the present invention.
In the figure: the device comprises a pretreatment system 1, a sedimentation device 11, a filtering device 12, a preheating device 13, an evaporation device 2, an evaporation tank 21, an evaporation tank 22, a mounting shaft 23, a feeding pipe 24, a discharging pipe 25, a bottom cover 26, a descaling device 3, a first scraper 31, a second scraper 32, a connecting assembly 4, a mounting pipe 41, a connecting pipe 42, a mounting rod 43, an elastic element 44, a driving assembly 5, a threaded rod 51, a mounting block 52, a fixing ring 53, a bolt 6, a nut 7 and a delivery pipe 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a system for treating landfill leachate membrane concentrate includes:
a pretreatment system 1, wherein the pretreatment system 1 comprises an evaporation device 2;
the evaporation plant 2 is positioned at the tail end of the pretreatment system 1, the evaporation plant 2 comprises an evaporation tank body 21, an evaporation tank bottom 22 and a mounting shaft 23, the evaporation tank bottom 22 is fixedly mounted at the bottom of the evaporation tank body 21, the diameter of the upper end of the evaporation tank bottom 22 is larger than that of the lower end of the evaporation tank bottom 22, and the mounting shaft 23 is rotatably mounted in the evaporation tank;
In the invention, after the pretreatment system 1 stops working, the driving assembly 5 is started to drive the connecting assembly 4 to move up and down and circularly in the evaporation tank body 21 and the evaporation tank bottom 22, so that the first scraper 31 and the second scraper 32 arranged on the connecting assembly 4 descale the inner walls of the evaporation tank body 21 and the evaporation tank bottom 22, when the first scraper 31 is in contact with the connecting assembly 4 at a height, the first scraper 31 descale the inner wall of the evaporation tank body 21 in the up-and-down and rotating processes, because the inner wall of the evaporation tank bottom 22 is an inclined wall, the descaling effect of the first scraper 31 on the inclined wall is poor, and the outer wall of the second scraper 32 below the first scraper 31 descales the inclined wall of the evaporation tank bottom 22.
The driving assembly 5 comprises a threaded rod 51, a mounting block 52 and fixing rings 53, the two fixing rings 53 are respectively and fixedly mounted at two ends of the mounting shaft 23, mounting ports are formed in the fixing rings, the threaded rod 51 is mounted between the two fixing rings 53, two ends of the threaded rod 51 are respectively and rotatably mounted in the mounting ports, a through hole is formed in the mounting block 52 and is in threaded connection with the threaded rod 51, an auxiliary motor is fixedly mounted at the top end of the threaded rod 51, a main motor is fixedly mounted on the mounting shaft 23 and drives the mounting shaft 23 to rotate, the fixing rings 53 at two ends of the mounting shaft 23 synchronously rotate, so that the threaded rod 51 mounted between the two fixing rings 53 does circular motion, the auxiliary motor drives the threaded rod 51 to rotate, when the threaded rod 51 rotates, the mounting block 52 is driven to move up and down on the threaded rod 51, and the first scraper 31 and the second scraper 32 basically have no descaling dead angle;
the connecting assembly 4 comprises a mounting tube 41, a connecting tube 42, a mounting rod 43 and an elastic element 44, the mounting tube 41 is fixedly mounted on the side surface of a mounting block 52, the connecting tube 42 is screwed in the mounting tube 41, the mounting rod 43 is slidably mounted in the connecting tube 42, one end of the elastic element 44 is fixedly mounted on the mounting block 52 and positioned in the mounting tube 41, the other end of the elastic element 44 is fixedly mounted on the mounting rod 43, a first scraper 31 is fixedly mounted on one end of the mounting rod 43 far away from the connecting tube 42, the mounting tube 41 is in threaded connection with the connecting tube 42, when the connecting assembly 4 is damaged, the connecting tube 42 can be taken off from the mounting block 52 for maintenance, when the mounting block 52 is moved to the bottom 22 area of the evaporation tank, the diameter is gradually reduced due to the inward inclination of the inner wall of the bottom 22 of the evaporation tank, so that the first scraper 31 presses the mounting rod 43, thereby pressing the elastic element 44 to make the mounting rod 43 slide towards the inside of the connecting tube 42, the first scraper 31 and the second scraper 32 are used for descaling the inner wall of the bottom 22 of the evaporating pot, when the mounting block 52 moves to the inner area of the evaporating pot 21, the first scraper 31 is not squeezed any more, the elastic element 44 recovers deformation to push the mounting rod 43 to move towards the outside of the connecting pipe 42, and the first scraper 31 is in contact with the inner wall of the evaporating pot 21;
the surface of the second scraper 32, which is far away from the mounting rod 43, inclines inwards, the inclined angle of the second scraper 32 is the same as the inclined angle of the evaporation tank bottom 22, and the inward inclined angle of the second scraper 32 is the same as the inward inclined angle of the evaporation tank bottom 22, so that the second scraper 32 can be fully contacted with the inner wall surface of the evaporation tank bottom 22, and the descaling effect on the inner wall surface of the evaporation tank bottom 22 is improved;
the evaporation device 2 further comprises a feeding pipe 24, a discharging pipe 25 and a bottom cover 26, the feeding pipe 24 is fixedly arranged on the side surface of the evaporation tank body 21, the discharging pipe 25 is fixedly arranged on the top surface of the evaporation tank body 21, the bottom cover 26 is in threaded connection with the bottom of the evaporation tank bottom 22, raw materials to be evaporated enter the evaporation device 2 through the feeding pipe 24, evaporated gas leaves the evaporation device 2 through discharging, and after descaling is completed, the bottom cover 26 is opened to clean scale and slag from the evaporation device 2;
a groove is formed in the middle of one end, close to the first scraper 31, of the mounting rod 43, the first scraper 31 is inserted into the groove, a bolt 6 is inserted into the mounting rod 43, the bolt 6 penetrates through the first scraper 31, two nuts 7 are connected to the bolt 6 in a threaded manner, the nuts 7 are respectively located on two sides of the mounting rod 43, the first scraper 31 is fixedly mounted in the mounting rod 43 through the bolt 6 and the nuts 7, the nuts 7 extrude the first scraper 31 of the box at two ends of the mounting rod 43, so that the mounting is firmer, and meanwhile, when the first scraper 31 is damaged, the first scraper 31 can be taken down for replacement;
the pretreatment system 1 further comprises a sedimentation device 11, a filtering device 12 and a preheating device 13, the filtering device 12 is arranged close to the sedimentation device 11, the preheating device 13 is arranged close to the filtering device 12, the sedimentation device 11 and the preheating device 13 are connected through a material conveying pipe 8, one end, far away from the evaporation device 2, of the feeding pipe 24 is fixedly connected with the upper side of the preheating device 13, garbage leachate membrane concentrated solution firstly enters the sedimentation device 11, flocculating agent is added into the sedimentation device 11, the garbage leachate membrane concentrated solution is flocculated and then precipitated, the precipitated liquid is conveyed into the filtering device 12 through the material conveying pipe 8, impurities which are not completely precipitated in the liquid are filtered, filtrate is conveyed to the preheating device 13 through the material conveying pipe 8, and the solution is preliminarily heated to a certain temperature and then conveyed into the evaporation device 2 through the feeding pipe 24 for evaporation treatment;
a filter plate is fixedly arranged in the filter device 12, the material conveying pipe 8 is fixedly arranged on the side surface of the filter device 12 and is positioned below the filter plate, and the filter plate filters the solution conveyed by the settling device 11 to ensure that the solution has no solid impurities;
the surfaces of the evaporation device 2 and the descaling equipment 3 are provided with anticorrosive and acid-proof protective coatings, and the concentrated solution has stronger acidity and corrosivity, so that the service life of the equipment is prolonged by adopting the anticorrosive and acid-proof protective coatings for prolonging the service life of the evaporation device 2 and the descaling equipment 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A system for treating landfill leachate membrane concentrate, comprising:
a pre-treatment system (1), the pre-treatment system (1) comprising an evaporation apparatus (2);
the evaporation device (2) is positioned at the tail end of the pretreatment system (1), the evaporation device (2) comprises an evaporation tank body (21), an evaporation tank bottom (22) and an installation shaft (23), the evaporation tank bottom (22) is fixedly installed at the bottom of the evaporation tank body (21), the diameter of the upper end of the evaporation tank bottom (22) is larger than that of the lower end of the evaporation tank bottom, and the installation shaft (23) is rotatably installed in the evaporation tank;
descaling equipment (3), descaling equipment (3) are installed in evaporation plant (2), descaling equipment (3) are including coupling assembling (4), drive assembly (5), first scraper blade (31) and second scraper blade (32), drive assembly (5) fixed mounting is on installation axle (23), coupling assembling (4) are used for connecting first scraper blade (31) and drive assembly (5), drive assembly (5) are used for driving first scraper blade (31) and descale evaporation tank bottoms (22) surface, second scraper blade (32) fixed mounting is in first scraper blade (31) downside.
2. The landfill leachate membrane concentrate treatment system of claim 1, wherein the driving assembly (5) comprises a threaded rod (51), a mounting block (52) and two fixing rings (53), the two fixing rings (53) are respectively and fixedly mounted at two ends of a mounting shaft (23), a mounting opening is formed in each fixing ring, the threaded rod (51) is mounted between the two fixing rings (53), two ends of the threaded rod (51) are respectively and rotatably mounted in the mounting openings, a through opening is formed in the mounting block (52), the through opening is in threaded connection with the threaded rod (51), a secondary motor is fixedly mounted at the top end of the threaded rod (51), and a primary motor is fixedly mounted on the mounting shaft (23).
3. A landfill leachate membrane concentrate treatment system according to claim 2, wherein the connection assembly (4) comprises a mounting pipe (41), a connecting pipe (42), a mounting rod (43) and a resilient member (44), the mounting pipe (41) is fixedly mounted on the side of the mounting block (52), the connecting pipe (42) is screwed into the mounting pipe (41), the mounting rod (43) is slidably mounted in the connecting pipe (42), the resilient member (44) is fixedly mounted on the mounting block (52) at one end thereof and located in the mounting pipe (41) at the other end thereof and fixedly mounted on the mounting rod (43), and the first scraper (31) is fixedly mounted on the mounting rod (43) at the end thereof remote from the connecting pipe (42).
4. A landfill leachate membrane concentrate treatment system according to claim 1, wherein the second scraper (32) is inclined inwardly away from the mounting rod (43), the angle of inclination of the second scraper (32) being the same as the angle of inclination of the tank bottom (22).
5. A landfill leachate membrane concentrate treatment system according to claim 1, wherein the evaporation plant (2) further comprises a feeding pipe (24), a discharging pipe (25) and a bottom cover (26), the feeding pipe (24) is fixedly installed on the side surface of the evaporation tank body (21), the discharging pipe (25) is fixedly installed on the top surface of the evaporation tank body (21), and the bottom cover (26) is in threaded connection with the bottom of the evaporation tank bottom (22).
6. A landfill leachate membrane concentrate treatment system according to claim 3, wherein the mounting rod (43) has a groove in the middle of the end thereof adjacent to the first scraper (31), the first scraper (31) is inserted into the groove, the mounting rod (43) is inserted with a bolt (6), the bolt (6) passes through the first scraper (31), the bolt (6) is threadedly connected with two nuts (7), and the nuts (7) are respectively located on two sides of the mounting rod (43).
7. A landfill leachate membrane concentrate treatment system according to claim 1, wherein the pretreatment system (1) further comprises a sedimentation device (11), a filtration device (12) and a preheating device (13), the filtration device (12) is disposed near the sedimentation device (11), the preheating device (13) is disposed near the filtration device (12), the sedimentation device (11) and the preheating device (13) are connected by a feed pipe (8), and an end of the feed pipe (24) away from the evaporation device (2) is fixedly connected to an upper side of the preheating device (13).
8. A landfill leachate membrane concentrate treatment system according to claim 7, wherein the filter unit (12) is fixedly provided with a filter plate inside, and the feed pipe (8) is fixedly provided on the side of the filter unit (12) below the filter plate.
9. A system for treatment of landfill leachate membrane concentrate according to claim 7, wherein the surface of the evaporation plant (2) and the surface of the descaling device (3) are coated with a corrosion-proof and acid-proof protective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808901.8A CN115010311A (en) | 2022-07-11 | 2022-07-11 | System for treating landfill leachate membrane concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210808901.8A CN115010311A (en) | 2022-07-11 | 2022-07-11 | System for treating landfill leachate membrane concentrate |
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| CN115010311A true CN115010311A (en) | 2022-09-06 |
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| CN202210808901.8A Pending CN115010311A (en) | 2022-07-11 | 2022-07-11 | System for treating landfill leachate membrane concentrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487517A (en) * | 2022-09-24 | 2022-12-20 | 广州市合利源食品有限公司 | Five-effect evaporation system for starch sugar concentration |
| CN115771922A (en) * | 2022-11-28 | 2023-03-10 | 江苏彬鹏环保有限公司 | Pressure circulation type nanofiltration concentrated solution treatment device for landfill leachate |
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| CN215439741U (en) * | 2021-08-28 | 2022-01-07 | 潍坊思创环保设备有限公司 | Landfill leachate low temperature evaporation equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115487517A (en) * | 2022-09-24 | 2022-12-20 | 广州市合利源食品有限公司 | Five-effect evaporation system for starch sugar concentration |
| CN115487517B (en) * | 2022-09-24 | 2023-07-21 | 广州市合利源食品有限公司 | Five-effect evaporation system for concentration of starch sugar |
| CN115771922A (en) * | 2022-11-28 | 2023-03-10 | 江苏彬鹏环保有限公司 | Pressure circulation type nanofiltration concentrated solution treatment device for landfill leachate |
| CN115771922B (en) * | 2022-11-28 | 2023-08-18 | 江苏彬鹏环保有限公司 | Nanofiltration concentrate treatment device for pressure circulation type landfill leachate |
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Application publication date: 20220906 |