CN210394128U - Sludge treatment system - Google Patents
Sludge treatment system Download PDFInfo
- Publication number
- CN210394128U CN210394128U CN201920970002.1U CN201920970002U CN210394128U CN 210394128 U CN210394128 U CN 210394128U CN 201920970002 U CN201920970002 U CN 201920970002U CN 210394128 U CN210394128 U CN 210394128U
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- China
- Prior art keywords
- treatment system
- sludge treatment
- air
- outlet
- air inlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010802 sludge Substances 0.000 title claims abstract description 48
- 238000001035 drying Methods 0.000 claims abstract description 49
- 238000000197 pyrolysis Methods 0.000 claims abstract description 23
- 238000000855 fermentation Methods 0.000 claims description 20
- 230000004151 fermentation Effects 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 238000005554 pickling Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 abstract description 10
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 239000002994 raw material Substances 0.000 description 7
- 239000010865 sewage Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002036 drum drying Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a sludge treatment field, concretely relates to sludge treatment system, include: the device comprises a hot blast stove, a drying roller, a first air blower and a pyrolysis furnace, wherein the first air blower is connected with the hot blast stove; the outlet of the hot blast stove is connected with the air inlet of the drying roller, and the air inlet of the drying roller is also provided with a feeding hole; the drying roller is provided with a discharge port, the discharge port of the drying roller is connected with an inlet of the pyrolysis furnace, and a first outlet of the pyrolysis furnace is connected with a second air inlet of the hot blast stove. Through the sludge treatment system that this application provided, organic matter in not only can effectual getting rid of mud can also carry out the organic matter that separates then for the drying drum provides the heat, has both solved environmental pollution's problem and has made the organic matter obtain once more utilizing, practiced thrift the energy again simultaneously.
Description
Technical Field
The utility model relates to a sludge treatment field, concretely relates to sludge treatment system.
Background
With the acceleration of the urbanization process of our country and the rapid development of social economy, the construction of urban drainage infrastructure makes great progress, the network access rate of urban sewage is continuously improved, and the number of urban sewage treatment plants is increased year by year.
Since the components of the sludge are very complex, the sludge contains a large amount of organic components in addition to a large amount of water. After a large amount of untreated sludge enters the environment, secondary pollution is directly brought to water and atmosphere, the effective treatment capacity of a sewage treatment system is reduced, and the serious threat is formed to the ecological environment and human activities. Therefore, there is a need to produce systems that can treat the organic constituents of sludge.
Disclosure of Invention
The utility model discloses contain organic matter composition in the mud to among the present sewage plant, with the problem that can cause environmental pollution that sewage treatment back mud was directly emptyd, provide a sludge treatment system.
In order to achieve the above purpose, the invention provides the following technical scheme:
a sludge treatment system comprising: the device comprises a hot blast stove, a drying roller, a first air blower and a pyrolysis furnace, wherein the first air blower is connected with a first air inlet of the hot blast stove; the outlet of the hot blast stove is connected with the air inlet of the drying roller, and the air inlet of the drying roller is also provided with a feeding hole; and a discharge port is formed in the other side of the drying roller, the discharge port of the drying roller is connected with an inlet of the pyrolysis furnace, and a first outlet of the pyrolysis furnace is connected with a second air inlet of the hot blast stove.
Preferably, the sludge treatment system further comprises a fermentation device, and a discharge hole of the fermentation device is connected with a feed hole of the drying drum. The sludge raw material is fermented by the fermentation device, and some substances in the sludge raw material can be treated in advance by a fermentation mode.
Preferably, the sludge treatment system further comprises a stirring device, and a discharge hole of the stirring device is connected with a feed inlet of the fermentation device. Stirring before fermentation can make the fermentation effect of the sludge raw material reach better.
Preferably, the sludge treatment system further comprises a heat exchanger and a second air blower, wherein a first air inlet of the heat exchanger is connected with an air outlet of the hot blast stove, a first air outlet of the heat exchanger is connected with an air inlet of the drying drum, a second air inlet of the heat exchanger is connected with the air blower, and a second air outlet of the heat exchanger is connected with an air inlet of the fermentation device. The process of fermenting the sludge raw material needs heat, so that natural air is blown into the heat exchanger through the second air blower, the natural air is exchanged with hot air flowing into the heat exchanger from the hot air furnace, and the air flowing out of the second air outlet of the heat exchanger has a certain temperature, so that the fermenting speed can be accelerated, and the fermenting time is shortened.
Preferably, the air outlet of the drying drum is connected with a bag-type dust collector through a ventilation pipeline, and the bag-type dust collector is connected with a chimney through an induced draft fan. The mud raw materials is through the drying drum drying back, is mingled with vapor and dust in the air, if directly emits into the dust concentration in the atmosphere can aggravate the air in, discharges again after getting rid of the dust of the inside through the sack cleaner, just can not aggravate the dust concentration in the air.
Preferably, an acid washing tower is arranged between the drying drum and the bag-type dust collector; the air inlet of the pickling tower is connected with the air outlet of the drying roller, and the air outlet of the pickling tower is connected with the bag-type dust collector. The sludge raw material may contain partial acid gas after fermentation, acid rain can be formed if the acid gas is directly discharged, and the acid gas in the air can be treated by arranging the acid washing tower at the air outlet of the drying roller, so that the pollution to the environment is reduced.
Preferably, the outlet of the induced draft fan and the pipeline connected with the chimney are obliquely and obliquely arranged in an inclined manner. The air outlet of the draught fan and the chimney are obliquely arranged upwards, so that gas can be rapidly discharged along the chimney.
Preferably, a discharge port of the drying roller is connected with an extrusion forming device, and a discharge port of the extrusion forming device is connected with an inlet of the pyrolysis furnace. The extrusion forming device can extrude the dried sludge into particles, and is convenient to use.
Preferably, the outer wall of the drying roller is provided with a heat insulation layer. The function of drying drum is to evaporate the moisture in the wet mud, therefore the temperature that needs is higher, consequently sets up the heat preservation at drying drum's outer wall and can reduce drying drum and external heat transfer, reduces thermal consumption.
Preferably, a second outlet is arranged right below the pyrolysis furnace and used for discharging decomposed sludge. A second outlet is arranged under the pyrolysis furnace, so that finished sludge products after pyrolysis can be conveniently discharged.
Compared with the prior art, the invention has the beneficial effects that: this application is dried mud through drying cylinder, then carry out the pyrolysis through the mud of pyrolysis oven after to the drying, with organic matter and the mud separation in the mud, then pass to the burning in the hot-blast stove with the organic matter, through the sludge treatment system that this application provided, not only can effectually get rid of the organic matter in the mud, can also carry out the organic matter that separates then for drying cylinder provides the heat, both solved environmental pollution's problem and made the organic matter obtain once more the utilization, practiced thrift the energy again.
Description of the drawings:
fig. 1 is a schematic structural diagram of a sludge treatment system provided by the present application.
The labels in the figure are: 1-a first air blower, 2-a hot blast stove, 3-a heat exchanger, 4-a drying roller, 5-an extrusion forming device, 6-a pyrolysis furnace, 7-a second air blower, 8-a stirring device, 9-a fermentation device, 10-an acid washing tower, 11-a bag-type dust remover, 12-a draught fan and 13-a chimney.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the present application provides a sludge treatment system comprising: a first port of the hot blast stove 2 is connected with a first air blower 1, and outside air is sent into the hot blast stove 2 through the first air blower 1 to be heated. The export of hot-blast furnace 2 and the first air intake connection of heat exchanger 3, the first air outlet of heat exchanger 3 and the air intake connection of drying drum 4, dry rolling discharge gate and the feed inlet of pyrolysis oven 6 are connected, the first export of pyrolysis oven 6 and the second air intake connection of hot-blast furnace 2, send the gaseous state organic matter in the mud of will separating into hot-blast furnace 2 and burn. Therefore, the organic matters in the sludge cannot be directly discharged into the air to pollute the air, and heat can be provided for the drying drum 4 after the organic matters are combusted, so that the energy waste is reduced. A second outlet is arranged under the pyrolysis furnace 6, and the pyrolyzed sludge is discharged through the second outlet of the pyrolysis furnace 6.
The sludge raw material is stirred by the stirring device 8, and then enters the drying drum 4 from the feeding hole of the drying drum 4 after being fermented by the fermentation device 9. Of course, the treated sludge can also be used as fertilizer, so that an extrusion molding device is arranged between the drying roller 4 and the pyrolysis furnace 6, and the dried sludge is extruded into granules by the extrusion molding device. The main function of the drying drum 4 is to evaporate the water in the sludge, so that the temperature of the drying drum 4 is best isolated from the outside, thus the energy loss can be reduced as much as possible, and the outer wall of the drying drum 4 can be wrapped with a heat-insulating layer.
A second air inlet of the heat exchanger 3 is connected with a second air blower 7, and a second air outlet of the heat exchanger 3 is connected with a fermentation device 9. The second air blower 7 blows natural wind into the heat exchanger 3, the hot blast stove 2 blows hot gas into the heat exchanger 3 from the first air inlet, and in the heat exchanger 3, the hot gas enters and exits the second channel in the first channel, so that the temperature of the gas flowing out of the second air outlet is higher than that of the second air inlet, and heat energy is provided for the fermentation device 9. The sludge needs a certain amount of heat in the fermentation process, so that the fermentation time can be shortened and the fermentation effect is better.
Partial organic matters of the sludge are decomposed from the sludge after being treated by the drying drum 4, the sludge can generate acidic substances after being fermented, so that an air outlet of the drying drum 4 is connected with an acid washing tower 10, the acidic gases in the waste gases are treated by the acid washing tower 10, then the dust in the waste gases is treated by a bag-type dust remover 11, and finally the treated gases are discharged through a chimney 13 by an induced draft fan 12. Preferably, the outlet of the induced draft fan 12 is arranged obliquely upward from the chimney 13, so that after the induced draft fan 12 pumps out the gas, the gas can directly flow upward along the chimney 13, and is convenient to discharge.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A sludge treatment system, comprising: the device comprises a hot blast stove (2), a drying roller (4), a first air blower (1) and a pyrolysis furnace (6), wherein the first air blower (1) is connected with a first air inlet of the hot blast stove (2); the outlet of the hot blast stove (2) is connected with the air inlet of the drying roller (4), and the air inlet of the drying roller (4) is also provided with a feeding hole; the other side of the drying roller (4) is provided with a discharge hole, the discharge hole of the drying roller (4) is connected with an inlet of the pyrolysis furnace (6), and a first outlet of the pyrolysis furnace (6) is connected with a second air inlet of the hot blast stove (2).
2. The sludge treatment system according to claim 1, further comprising a fermentation device (9), wherein the outlet of the fermentation device (9) is connected with the inlet of the drying drum (4).
3. The sludge treatment system according to claim 2, further comprising a stirring device (8), wherein the discharge port of the stirring device (8) is connected with the feed port of the fermentation device (9).
4. The sludge treatment system according to claim 2, further comprising a heat exchanger (3) and a second air blower (7), wherein a first air inlet of the heat exchanger (3) is connected with an air outlet of the hot blast stove (2), a first air outlet of the heat exchanger (3) is connected with an air inlet of the drying drum (4), a second air inlet of the heat exchanger (3) is connected with the air blower, and a second air outlet of the heat exchanger (3) is connected with an air inlet of the fermentation device (9).
5. The sludge treatment system according to claim 2, wherein the air outlet of the drying drum (4) is connected with a bag-type dust collector (11) through a ventilation duct, and the bag-type dust collector (11) is connected with a chimney (13) through an induced draft fan (12).
6. The sludge treatment system according to claim 5, wherein an acid washing tower (10) is arranged between the drying drum (4) and the bag-type dust collector (11); the air inlet of the pickling tower (10) is connected with the air outlet of the drying roller (4), and the air outlet of the pickling tower (10) is connected with the bag-type dust collector (11).
7. The sludge treatment system according to claim 5, wherein the pipeline connecting the outlet of the induced draft fan (12) and the chimney (13) is inclined obliquely and obliquely upwards.
8. The sludge treatment system according to claim 1, wherein the discharge port of the drying drum (4) is connected with an extrusion forming device (5), and the discharge port of the extrusion forming device (5) is connected with the inlet of the pyrolysis furnace (6).
9. Sludge treatment system according to claim 1, wherein the outer wall of the drying drum (4) is provided with an insulation layer.
10. Sludge treatment system according to claim 1, wherein a second outlet is provided directly below the pyrolysis furnace (6) for discharging the decomposed sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970002.1U CN210394128U (en) | 2019-06-26 | 2019-06-26 | Sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970002.1U CN210394128U (en) | 2019-06-26 | 2019-06-26 | Sludge treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210394128U true CN210394128U (en) | 2020-04-24 |
Family
ID=70350837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920970002.1U Expired - Fee Related CN210394128U (en) | 2019-06-26 | 2019-06-26 | Sludge treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210394128U (en) |
-
2019
- 2019-06-26 CN CN201920970002.1U patent/CN210394128U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |