CN112979124A - Dry sludge distribution treatment system - Google Patents
Dry sludge distribution treatment system Download PDFInfo
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- CN112979124A CN112979124A CN202110456045.XA CN202110456045A CN112979124A CN 112979124 A CN112979124 A CN 112979124A CN 202110456045 A CN202110456045 A CN 202110456045A CN 112979124 A CN112979124 A CN 112979124A
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- 238000009826 distribution Methods 0.000 title claims abstract description 160
- 239000010802 sludge Substances 0.000 title claims abstract description 119
- 238000001035 drying Methods 0.000 claims abstract description 29
- 238000012546 transfer Methods 0.000 claims abstract description 12
- 238000005303 weighing Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 2
- 238000007790 scraping Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a dry sludge distribution treatment system, which comprises: the sludge drying device comprises a plurality of drying devices, an aggregate scraper blade, a conveying scraper blade, a distribution spiral conveyor, a plurality of distribution scraper blades, a plurality of chutes and a plurality of incinerators, wherein the drying devices are used for drying municipal sludge, the aggregate scraper blade is arranged below the drying devices, the conveying scraper blade is arranged at the downstream of the aggregate scraper blade, the distribution spiral conveyor is arranged at the downstream of the conveying scraper blade to receive and transfer dry sludge from the conveying scraper blade, the distribution scraper blades are all arranged at the downstream of the distribution spiral conveyor to receive and transfer the dry sludge from the distribution spiral conveyor, the outlet positions of the distribution spiral conveyor can be adjusted to distribute the dry sludge to the distribution scraper blades respectively, and the chutes are arranged between the distribution scraper blades and the incinerators corresponding to each other. The dry sludge distribution treatment system avoids the condition that the sludge is contacted with the percolate and returns to be wet, and ensures the stability and controllability of sludge distribution.
Description
Technical Field
The invention relates to the technical field of municipal sludge treatment, in particular to a dry sludge distribution treatment system.
Background
The municipal sludge contains undegradable toxic and harmful substances such as parasitic ova, heavy metals, dioxin, radioactive nuclide and the like. In the related technology, municipal sludge is mainly treated by composting, landfill, incineration and the like, wherein the incineration treatment mode is most effective and thorough, and partial heat energy can be recovered.
In the correlation technique, in order to reduce cost and improve efficiency, municipal sludge can be transported to a waste incineration plant near a sewage treatment plant and is co-burned with domestic waste, the municipal sludge needs to be dried before co-burning, and the dried sludge can be transported to a waste pit and then is grabbed into an incinerator for incineration through a grab bucket.
However, the above delivery processing method has the following problems: firstly, the dried sludge is easy to contact with percolate in a garbage pit, so that the problem of rewetting exists, and the percolate mixed with the sludge also increases the subsequent treatment difficulty; secondly, the multi-petal grab bucket is not suitable for grabbing bulk materials such as sludge and the like, the grab bucket needs to be modified, and inconvenience is brought to production operation; and thirdly, the grabbing distribution mode is not easy to control the distribution amount of the sludge, and the problem of uneven distribution exists.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides a dry sludge distribution treatment system, which avoids the condition that sludge is contacted with percolate and returns to be wet, and ensures the stability and controllability of sludge distribution.
The dry sludge distribution treatment system according to the embodiment of the invention comprises: a plurality of drying devices for drying municipal sludge; an aggregate scraper provided below the plurality of drying devices to collect dry sludge discharged from the plurality of drying devices; a conveying scraper disposed downstream of the collection scraper to receive and transport the dry sludge from the collection scraper, a first end of the conveying scraper being disposed below the collection scraper, a second end of the conveying scraper being higher than the first end of the conveying scraper; a distribution screw conveyor and a plurality of distribution scrapers, wherein the distribution screw conveyor is arranged at the downstream of the conveying scrapers to receive and transfer the dry sludge from the conveying scrapers, the distribution scrapers are arranged at the downstream of the distribution screw conveyor to receive and transfer the dry sludge from the distribution screw conveyor, and the outlet position of the distribution screw conveyor is adjustable to distribute the dry sludge to the distribution scrapers respectively; a plurality of chutes provided between the distribution scraper and the incinerators corresponding to each other, the chutes for conveying the dry sludge from the distribution scraper into the incinerators.
According to the dry sludge distribution treatment system provided by the embodiment of the invention, the condition that the sludge is in contact with the percolate and returns to be wet is avoided, and the stability and controllability of sludge distribution are ensured.
In some embodiments, the dry sludge distribution treatment system further comprises a guide rail, the distribution screw conveyor is arranged on the guide rail and is adjustable in position along the extension direction of the guide rail so as to adjust the outlet position of the distribution screw conveyor, and the inlet of the distribution screw conveyor is flexibly connected with the conveying scraper.
In some embodiments, the bottom of the distribution screw conveyor is provided with rollers which are rollably fitted on the guide rails.
In some embodiments, the distribution screw conveyor comprises a screw housing having a first end provided with a first outlet and a second end provided with a second outlet, and a screw shaft disposed within the screw housing, and the screw shaft is adjustable in axial position along the distribution screw conveyor to distribute the dry sludge to the first outlet or the second outlet.
In some embodiments, the incinerator is a grate-type incinerator comprising a grate and a hopper, the chute being provided between the distribution scraper and the grate to distribute the dry sludge to the grate, or the chute being provided between the distribution scraper and the hopper to distribute the dry sludge to the hopper.
In some embodiments, the chute is disposed between the distribution scraper and the grate, and a weighing screw conveyor is disposed between the chute and the distribution scraper.
In some embodiments, the chute is provided between the distribution scraper and the feed hopper, and the distribution screw conveyor and the chute are each provided with a load cell.
In some embodiments, 2 to 4 chutes are arranged at intervals in sequence between a plurality of the incinerators and the corresponding distribution scraper, and the distance between two adjacent chutes is 1.5 to 2.5 meters.
In some embodiments, the inlet and outlet of the collecting scraper, the conveying scraper and the distributing scraper are provided with ventilation and exhaust pipelines for collecting waste gas generated by the dry sludge.
In some embodiments, the dry sludge distribution treatment system further comprises an open scraper disposed downstream of the collection scraper or downstream of the transport scraper to transfer the dry sludge to a landfill.
Drawings
FIG. 1 is a schematic diagram of a dry sludge dispatch treatment system according to an embodiment of the present invention.
Fig. 2 is a first schematic view of the distribution screw conveyor of fig. 1.
Fig. 3 is a second schematic view of the distribution screw conveyor of fig. 1.
Figure 4 is a schematic view of the arrangement of the first chute of figure 1.
Figure 5 is a schematic view of the second chute arrangement of figure 1.
Reference numerals:
a drying device 1;
an aggregate scraper 2;
a conveying flight 3;
a distribution screw conveyor 4; a spiral housing 41; a first outlet 411; a second outlet 412; a screw shaft 42;
a distribution scraper 5;
a gate 6;
a chute 7; a first chute 71; a second chute 72;
an incinerator 8; a grate 81; a feed hopper 82;
an open scraper 9;
a guide rail 10;
a roller 11;
weighing the screw conveyor 12;
and a load cell 13.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 5, the dry sludge distribution treatment system according to the embodiment of the present invention includes a plurality of drying devices 1, an aggregation scraper 2, a conveying scraper 3, a distribution screw conveyor 4, a plurality of distribution scrapers 5, a plurality of chutes 7, and a plurality of incinerators 8.
The drying device 1 is used for drying municipal sludge. As shown in fig. 1, the drying device 1 is a plurality of dryers, and the dryers are arranged at intervals in the left-to-right direction. Each drying device 1 can independently dry municipal sludge and obtain dry sludge.
The collecting scraper 2 is provided below the plurality of drying devices 1 to collect the dry sludge discharged from the plurality of drying devices 1. As shown in fig. 1, the discharge port of each drying device 1 is arranged at the bottom, and the collecting scraper 2 is arranged below the drying devices 1, so that the dry sludge discharged from the drying devices 1 can be collected on the collecting scraper 2 and transported to the subsequent conveying scraper 3 through the collecting scraper 2.
The conveying scraper blade 3 is arranged at the downstream of the aggregate scraper blade 2 to receive and transfer the dry sludge from the aggregate scraper blade 2, the first end of the conveying scraper blade 3 is arranged below the aggregate scraper blade 2, and the second end of the conveying scraper blade 3 is higher than the first end of the conveying scraper blade 3.
As shown in fig. 1, the conveying scraper 3 is arranged obliquely in the direction from left bottom to right top, the left end of the conveying scraper 3 is butted with the right end of the aggregate scraper 2, specifically, the left end of the conveying scraper 3 can be arranged below the aggregate scraper 2, and the dry sludge on the aggregate scraper 2 can automatically slide down onto the conveying scraper 3 by self weight and is continuously transported to the subsequent distribution screw conveyor 4 by the conveying scraper 3.
It can be understood that the conveying scraper 3 can be a whole conveying scraper 3, and the conveying scraper 3 can also be formed by splicing a plurality of conveying sub-scrapers from left to right. The first end of the conveying scraper 3 is the left end of the conveying scraper 3, and the second end of the conveying scraper 3 is the right end of the conveying scraper 3. The left end of the conveying scraper 3 is lower than the right end of the conveying scraper 3, so that the dry sludge is conveniently conveyed to a certain height position. The conveying scraper 3 may be an inclined scraper arranged obliquely upward or a vertical scraper arranged vertically.
Preferably, as shown in fig. 1, when the conveying blade 3 is an inclined blade, the inclined extension direction of the conveying blade 3 and the horizontal direction form an angle α, which is in the range of 0 to 45 degrees. That is, the angle of the included angle α may be any value between 0 degrees and 45 degrees, for example, the included angle α may be 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees. The fault rate and the maintenance difficulty of the inclined scraper are lower, and the use is facilitated.
A distribution screw conveyor 4 is arranged downstream of the conveying scraper 3 to receive and transfer the dry sludge from the conveying scraper 3, a plurality of distribution scrapers 5 are arranged downstream of the distribution screw conveyor 4 to receive and transfer the dry sludge from the distribution screw conveyor 4, and the outlet position of the distribution screw conveyor 4 is adjustable to distribute the dry sludge to the plurality of distribution scrapers 5, respectively.
As shown in fig. 1, a distribution screw conveyor 4 is provided below the right end of the conveying scraper 3, dry sludge on the conveying scraper 3 can be conveyed to the distribution screw conveyor 4, a plurality of distribution scrapers 5 are provided, the distribution scrapers 5 are arranged in parallel at intervals, the outlet position of the distribution screw conveyor 4 is adjustable and can be switched to different distribution scraper 5 positions, and thus, dry sludge discharged from the distribution screw conveyor 4 can be conveyed to different distribution scrapers 5 respectively.
A chute 7 is provided between the distribution scraper 5 and the incineration furnace 8 corresponding to each other, the chute 7 serving to convey the dry sludge from the distribution scraper 5 into the incineration furnace 8. As shown in fig. 1, a plurality of incinerators 8 are provided below each distribution scraper 5, and a plurality of chutes 7 are provided between each incinerator 8 and the corresponding distribution scraper 5, whereby dry sludge on the distribution scraper 5 can be transported into the corresponding incinerator 8 through the corresponding chute 7. The incinerator 8 can incinerate the dry sludge in the incinerator.
According to the dry sludge distribution treatment system provided by the embodiment of the invention, the dry sludge generated by drying through the dryer is directly conveyed into the incinerator 8, so that the condition that the dry sludge is firstly conveyed to a garbage pit and is easy to contact with percolate to return to wet is avoided, the delivery amount and the delivery process of the dry sludge are more stable and controllable due to the fact that a material taking mode that a grab bucket grabs the dry sludge is replaced, and the continuity of dry sludge treatment is guaranteed.
The condition that the sludge is contacted with the percolate to return to the wet state is avoided, and the stability and controllability of sludge distribution are ensured.
In some embodiments, the dry sludge distribution treatment system further comprises a guide rail 10, the distribution screw conveyor 4 is arranged on the guide rail 10 and is adjustable in position along the extension direction of the guide rail 10 so as to adjust the outlet position of the distribution screw conveyor 4, the inlet of the distribution screw conveyor 4 is flexibly connected with the conveying scraping plate 3, the bottom of the distribution screw conveyor 4 is provided with a roller 11, and the roller 11 is matched on the guide rail 10 in a rolling way.
As shown in fig. 2, a guide rail 10 is arranged below the distribution screw conveyor 4, a roller 11 is arranged at the bottom of the distribution screw conveyor 4, and the roller 11 is roll-fitted on the guide rail 10, whereby the distribution screw conveyor 4 can move along the extension direction of the guide rail 10, so that the outlets of the distribution screw conveyor 4 can move above different distribution scrapers 5, respectively, thereby realizing the distribution of the dry sludge to the different distribution scrapers 5.
The inlet of the distribution screw conveyor 4 is flexibly connected with the conveying scraper 3, for example, the inlet of the distribution screw conveyor 4 can be connected with the outlet of the conveying scraper 3 through a distribution pipeline, so that when the distribution screw conveyor 4 moves, the distribution pipeline can be automatically adjusted and changed along with the movement of the distribution screw conveyor 4, and the requirement of the movement of the distribution screw conveyor 4 is met.
In some embodiments, the distribution screw conveyor 4 comprises a screw housing 41 and a screw shaft 42, a first end of the screw housing 41 is provided with a first outlet 411, a second end of the screw housing 41 is provided with a second outlet 412, the screw shaft 42 is provided within the screw housing 41, and the axial position of the screw shaft 42 along the distribution screw conveyor 4 is adjustable to distribute the dry sludge to the first outlet 411 or the second outlet 412.
As shown in fig. 3, a first outlet 411 and a second outlet 412 are provided on the spiral casing 41 of the distribution spiral conveyor 4, the first outlet 411 and the second outlet 412 are both provided at the bottom of the spiral casing 41, a first end of the spiral casing 41 is a left end of the spiral casing 41, a second end of the spiral casing 41 is a right end of the spiral casing 41, the first outlet 411 is provided at the left end of the spiral casing 41, the second outlet 412 is provided at the right end of the spiral casing 41, and an inlet of the distribution spiral conveyor 4 is provided at the top of the spiral casing 41 and is located between the first outlet 411 and the second outlet 412.
The screw shaft 42 is arranged in the screw housing 41 and is movable along the left-right direction, when the screw shaft 42 moves to the left side of the screw housing 41, the dry sludge entering from the inlet of the distribution screw conveyor 4 is conveyed to the first outlet 411 under the action of the screw shaft 42, when the screw shaft 42 moves to the right side of the screw housing 41, the dry sludge entering from the inlet of the distribution screw conveyor 4 is conveyed to the second outlet 412 under the action of the screw shaft 42, and the first outlet 411 and the second outlet 412 respectively correspond to different distribution scrapers 5, so that the conveying of the dry sludge to different distribution scrapers 5 is realized.
It is understood that in other embodiments, the distribution screw conveyor 4 may also adjust the position of the outlet by swinging, for example, the inlet of the distribution screw conveyor 4 and the outlet of the conveying scraper 3 may be rotatably connected by an inner sleeve and an outer sleeve, the distribution screw conveyor 4 may swing around the connection with the conveying scraper 3, when the dry sludge needs to be conveyed to different distribution scrapers 5, the distribution screw conveyor 4 is driven to swing, and the outlet of the distribution screw conveyor 4 may be switched to different distribution scrapers 5.
In some embodiments, the incinerator 8 is a grate type incinerator 8, the incinerator 8 comprises a grate 81 and a hopper 82, and the chute 7 is provided between the distribution scraper 5 and the grate 81 to distribute the dry sludge to the grate 81, or the chute 7 is provided between the distribution scraper 5 and the hopper 82 to distribute the dry sludge to the hopper 82.
For convenience of description, the chute 7 can be divided into a first chute 71 and a second chute 72 according to the installation position, wherein when the chute 7 is arranged between the distributing scraper 5 and the grate 81, the chute 7 is called the first chute 71; when the chute 7 is placed between the distributing scraper 5 and the hopper 82, the chute 7 is called the second chute 72. The chute 7 can be installed only by selecting between the first chute 71 and the second chute 72, i.e. the chute 7 can only be the first chute 71 or the second chute 72 in the same dry sludge distribution treatment system.
As shown in fig. 4, when the chute 7 is a first chute 71, a feed hopper 82 is provided at the inlet position of the incinerator 8, the first chute 71 is provided between the corresponding distributing scraper 5 and the grate 81, and the dry sludge on the distributing scraper 5 can be directly conveyed to the grate 81 via the first chute 71.
When the chute 7 is a second chute 71, as shown in fig. 5, the second chute 72 is arranged between the corresponding distributing scraper 5 and the feeding hopper 82, and the dry sludge on the distributing scraper 5 can be directly conveyed to the feeding hopper 82 via the second chute 72 and then conveyed to the grate 81 via the feeding hopper 82. The selective installation of the first chute 71 and the second chute 72 enhances the flexibility of feeding the incinerator 8.
In some embodiments, a weighing screw conveyor 12 is provided between the first chute 71 and the distribution scraper 5. As shown in fig. 4, the inlet of the weighing screw conveyor 12 is connected with the distributing scraper 5, the outlet of the weighing screw conveyor 12 is connected with the first chute 71, and the weighing screw conveyor 12 can weigh the conveyed dry sludge, so that the operator can know the feeding amount of the first chute 71 conveniently.
In some embodiments, both the dispensing screw conveyor 4 and the second chute 72 are provided with load cells 13. The import and the exit of distribution screw conveyer 4 all are equipped with weighing sensor 13, and weighing sensor 13 can weigh the dry mud of carrying to make things convenient for operating personnel to learn the feed volume of distribution screw conveyer 4. As shown in FIG. 5, a weighing sensor 13 is also arranged at the second chute 72, and the weighing sensor 13 can weigh the dry sludge conveyed by the second chute 72, so that an operator can conveniently know the feeding amount of the second chute 72.
In some embodiments, 2 to 4 chutes 7 are arranged at intervals in sequence between the plurality of incinerators 8 and the corresponding distribution scraper 5, and the distance between two adjacent chutes 7 is 1.5 to 2.5 meters.
As shown in fig. 1, when the chute 7 is a first chute 71, a plurality of first chutes 71 are provided between the grate 81 of each incinerator 8 and the corresponding distribution scraper 5, the plurality of first chutes 71 are equally spaced in the left-right direction, and the distance between two adjacent first chutes 71 is 1.5 m to 2.5 m, for example, the distance between two adjacent first chutes 71 may be 1.5 m, 1.6 m, 1.8 m, 2.0 m, 2.2 m, 2.3 m, 2.5 m, and the like.
It is understood that in other embodiments, when the chutes 7 are the second chutes 72, a plurality of second chutes 72 are provided between the feed port of each incinerator 8 and the corresponding distribution scraper 5, the plurality of second chutes 72 are equally spaced in the left-right direction, and the distance between two adjacent second chutes 72 is 1.5 m to 2.5 m, for example, the distance between two adjacent second chutes 72 may be 1.5 m, 1.6 m, 1.8 m, 2.0 m, 2.2 m, 2.3 m, 2.5 m, etc.
The arrangement of the first chute 71 and the second chute 72 enables the dry sludge to be evenly distributed at the grate 81 or the feed hopper 82, which is beneficial to the full incineration treatment of the dry sludge.
In some embodiments, the inlets and outlets of the collecting scraper 2, the conveying scraper 3 and the distribution scraper 5 are provided with ventilation and exhaust lines (not shown) for collecting the exhaust gases generated by the dry sludge.
The aggregate scraper 2, the conveying scraper 3 and the distribution scraper 5 are all closed transportation type scrapers, ventilation and exhaust pipelines are arranged at inlets and outlets of the aggregate scraper 2, the conveying scraper 3 and the distribution scraper 5, a fan is connected to the ventilation and exhaust pipelines, and the fan is used for generating negative pressure in the ventilation and exhaust pipelines. Because the dry sludge can generate odor in the conveying process, the ventilation and exhaust pipeline can collect the generated odor, and the odor is prevented from overflowing.
Preferably, the collecting scraper 2, the conveying scraper 3 and the distributing scraper 5 are all double-chain scrapers.
In some embodiments, the dry sludge distribution treatment system further comprises an open scraper 9, the open scraper 9 being provided downstream of the aggregation scraper 2 or downstream of the conveying scraper 3 to transfer the dry sludge to a landfill.
As shown in figure 1, the open scraper 9 is arranged on the aggregate scraper 2, the dry sludge on the aggregate scraper 2 can be directly conveyed to the open scraper 9, and the open scraper 9 is connected between the aggregate scraper 2 and a garbage pit. When the dry sludge distribution treatment system breaks down, dry sludge generated by the drying agent can be directly conveyed to the garbage pit through the open scraper 9, so that materials in the drying device 1 can be emptied in time, and the problem that the drying device 1 is stopped due to long-time material carrying is avoided.
It will be understood that the open scraper 9 may also be connected to the conveyor scraper 3, and that dry sludge may be transported from the conveyor scraper 3 to the open scraper 9. The opening scraper 9 can also be connected directly to the drying device 1, so that the dried sludge discharged from the drying device 1 can be transported directly to the opening scraper 9.
In some embodiments, a gate 6 is provided between the chute 7 and the distribution scraper 5, corresponding to each other. As shown in fig. 1, the size of the gates 6 can be adjusted so that the amount and rate of supply of dry sludge to the respective incinerators 8 can be adjusted for each chute 7.
In some embodiments, the dry sludge distribution treatment system further comprises a control device, the control device is a PLC control system, the aggregate scraping plate 2, the conveying scraping plate 3, the distribution screw conveyor 4, and each distribution scraping plate 5 are electrically connected to the control device, and the control device can control the aggregate scraping plate 2, the conveying scraping plate 3, the distribution screw conveyor 4, and each distribution scraping plate 5 to act in a coordinated manner. The arrangement of the control device enhances the automation degree of the dry sludge distribution treatment system.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A dry sludge dispensing treatment system, comprising:
a plurality of drying devices for drying municipal sludge;
an aggregate scraper provided below the plurality of drying devices to collect dry sludge discharged from the plurality of drying devices;
a conveying scraper disposed downstream of the collection scraper to receive and transport the dry sludge from the collection scraper, a first end of the conveying scraper being disposed below the collection scraper, a second end of the conveying scraper being higher than the first end of the conveying scraper;
a distribution screw conveyor and a plurality of distribution scrapers, wherein the distribution screw conveyor is arranged at the downstream of the conveying scrapers to receive and transfer the dry sludge from the conveying scrapers, the distribution scrapers are arranged at the downstream of the distribution screw conveyor to receive and transfer the dry sludge from the distribution screw conveyor, and the outlet position of the distribution screw conveyor is adjustable to distribute the dry sludge to the distribution scrapers respectively;
a plurality of chutes provided between the distribution scraper and the incinerators corresponding to each other, the chutes for conveying the dry sludge from the distribution scraper into the incinerators.
2. The dry sludge distribution treatment system of claim 1 further comprising a guide rail, wherein the distribution screw conveyor is provided on the guide rail and is adjustable in position along the extension direction of the guide rail to adjust the outlet position of the distribution screw conveyor, and the inlet of the distribution screw conveyor is flexibly connected with the conveying scraper.
3. The dry sludge distribution treatment system of claim 2 wherein said distribution screw conveyor has rollers at the bottom thereof, said rollers being rollably engaged on said guide rails.
4. The dry sludge dispensing treatment system of claim 1 wherein the distribution screw conveyor comprises a screw housing and a screw shaft, the screw housing having a first outlet at a first end and a second outlet at a second end, the screw shaft being disposed within the screw housing, and the screw shaft being adjustable in axial position along the distribution screw conveyor to dispense the dry sludge to the first outlet or the second outlet.
5. The dry sludge distribution treatment system of claim 1 wherein the incinerator is a grate type incinerator comprising a grate and a hopper, the chute being provided between the distribution scraper and the grate to distribute the dry sludge to the grate, or the chute being provided between the distribution scraper and the hopper to distribute the dry sludge to the hopper.
6. The dry sludge dispensing treatment system of claim 5 wherein said chute is disposed between said distributing scraper and said grate and a weighing screw conveyor is disposed between said chute and said distributing scraper.
7. The dry sludge distribution treatment system of claim 5 wherein said chute is disposed between said distribution scraper and said feed hopper, and said distribution screw conveyor and said chute are each provided with a load cell.
8. The dry sludge distribution treatment system according to claim 5, wherein 2 to 4 chutes are arranged at intervals in sequence between a plurality of said incinerators and corresponding distributing scrapers, and the distance between two adjacent chutes is 1.5 to 2.5 m.
9. The dry sludge distribution treatment system of claim 1 wherein the inlet and outlet of the collection scraper, the conveying scraper, and the distribution scraper are provided with ventilation and exhaust lines for collecting the exhaust gas generated by the dry sludge.
10. The dry sludge distribution treatment system of any one of claims 1 to 9 further comprising an open scraper disposed downstream of the aggregate scraper or downstream of the conveying scraper to transfer the dry sludge to a waste pit.
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| CN202110456045.XA CN112979124A (en) | 2021-04-26 | 2021-04-26 | Dry sludge distribution treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110456045.XA CN112979124A (en) | 2021-04-26 | 2021-04-26 | Dry sludge distribution treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090293787A1 (en) * | 2008-05-29 | 2009-12-03 | Johannes Martin | Incineration plant and method for controlling an incineration plant |
| CN102777920A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Dried sludge incineration feeding system |
| CN107255285A (en) * | 2017-06-02 | 2017-10-17 | 绿色动力环保集团股份有限公司 | A kind of method and system of three driving grate furnace mixed burning house refuse and sludge |
| CN111547984A (en) * | 2020-05-20 | 2020-08-18 | 浙江裕峰环境服务股份有限公司 | Sludge drying process and equipment thereof |
| CN212221530U (en) * | 2020-11-24 | 2020-12-25 | 新乡市振英机械设备有限公司 | Movable conveyor for vibrating screen materials |
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2021
- 2021-04-26 CN CN202110456045.XA patent/CN112979124A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090293787A1 (en) * | 2008-05-29 | 2009-12-03 | Johannes Martin | Incineration plant and method for controlling an incineration plant |
| CN102777920A (en) * | 2012-08-13 | 2012-11-14 | 佛山市南海绿电再生能源有限公司 | Dried sludge incineration feeding system |
| CN107255285A (en) * | 2017-06-02 | 2017-10-17 | 绿色动力环保集团股份有限公司 | A kind of method and system of three driving grate furnace mixed burning house refuse and sludge |
| CN111547984A (en) * | 2020-05-20 | 2020-08-18 | 浙江裕峰环境服务股份有限公司 | Sludge drying process and equipment thereof |
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Application publication date: 20210618 |