CN212770409U - Sludge treatment system - Google Patents
Sludge treatment system Download PDFInfo
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- CN212770409U CN212770409U CN202021318220.6U CN202021318220U CN212770409U CN 212770409 U CN212770409 U CN 212770409U CN 202021318220 U CN202021318220 U CN 202021318220U CN 212770409 U CN212770409 U CN 212770409U
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- treatment system
- sludge
- heat
- sludge treatment
- heat pump
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- 239000010802 sludge Substances 0.000 title claims abstract description 98
- 238000001035 drying Methods 0.000 claims abstract description 62
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 238000010248 power generation Methods 0.000 claims description 7
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model provides a sludge treatment system, which comprises an absorption heat pump unit arranged on a secondary water outlet pipeline of the sludge treatment system, wherein a waste heat pipeline of an evaporator of the absorption heat pump unit is directly or indirectly communicated with the secondary water outlet pipeline so as to recover the heat of deep waste heat water in the secondary water outlet pipeline; the utility model discloses well second grade play water energy passes through the further recycle of absorption heat pump, not only can realize energy saving and emission reduction, reduces the loss of sludge treatment system energy, and the absorption heat pump does not have the compressor moreover, and is less to the electric energy dependence, can alleviate environmental power shortage. Especially if the recovered energy is directly applied to sludge drying, the drying efficiency of the original process can be greatly improved.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to waste water treatment system.
Background
The sewage is separated into wastewater and mud after treatment, secondary effluent after advanced treatment is discharged or recycled, and mud needs to be dried and dehumidified by parts such as sludge drying equipment and the like.
The sludge drying equipment generally adopts a hot air rotary-vane drier, and can adopt a double-shaft rotary-vane drier (vertical type, horizontal type) and a three-shaft rotary-vane drier (horizontal type) according to different sludge viscosities, so that a high-humidity material with the initial water content of below 85 percent can be dried to the final water content of below 12 percent in one step, and the drying time is short, and is generally 2 to 10 minutes. Since the high-speed stirring blade vigorously stirs the wet material, the wet material can be in good contact with the hot air. The moisture of the material in the front half part of the machine is quickly evaporated, and the temperature of the hot air in the machine is sharply reduced, so that the temperature rise of the material is not high even if high-temperature hot air is used.
At present, how to reduce the waste of energy in a sludge treatment system is a technical problem which is always pursued by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-saving sludge treatment system.
The utility model provides a sludge treatment system, including setting up the absorption heat pump unit on sludge treatment system's second grade outlet pipe way, the waste heat pipeline of absorption heat pump unit's evaporimeter is direct or indirect intercommunication second grade outlet pipe way, in order to retrieve the surplus hot water heat of degree of depth in the second grade outlet pipe way.
The utility model discloses the waste heat pipeline of well absorption heat pump unit's evaporimeter directly or indirectly communicates second grade water outlet pipeline to degree of depth processing waste heat water heat in retrieving second grade water outlet pipeline. That is to say, the second-stage outlet water is introduced into the evaporator to be used as heat energy for forming steam refrigerant, the steam refrigerant enters the absorber to be absorbed by the concentrated solution, and the concentrated solution is diluted to release heat so as to heat a heat supply medium in the absorber to form high-temperature heat energy. The high-temperature heat energy of the absorber can be directly output for external use, for example, the high-temperature heat energy can be directly applied to a sludge drying device of a sludge treatment system to provide sludge drying energy, and the high-temperature heat energy is not limited to sludge drying and can also be applied to processes such as material dehumidification, food drying and the like.
To sum up, the utility model discloses well second grade goes out water energy and passes through further recycle of absorption heat pump, not only can realize energy saving and emission reduction, reduces the loss of sludge treatment system energy, and absorption heat pump does not have the compressor moreover, and is less to the electric energy dependence, can alleviate environmental power tension. Especially if the recovered energy is directly applied to sludge drying, the drying efficiency of the original process can be greatly improved.
Optionally, the high-temperature heat source provided by the absorption heat pump unit is used for providing sludge drying energy for a sludge drying device of the sludge treatment system.
Optionally, the absorber of the absorption heat pump unit and the heat exchange tube of the condenser are connected in series to form a high-temperature heat source circulation loop, and the high-temperature heat source circulation loop is used for providing sludge drying energy for a sludge drying device of the sludge treatment system.
Optionally, the drying device further comprises a heat exchanger, a first heat exchange channel and a second heat exchange channel which can exchange heat are arranged in the heat exchanger, a series pipeline formed by the absorber and the condenser is connected with the first heat exchange channel in series to form the high-temperature heat source circulation loop, and a heat source inlet and an outlet of the sludge drying device are connected with the second heat exchange channel in series to form the drying source circulation loop.
Optionally, a surface cooler is further connected to a drying source outlet of the sludge drying apparatus, and a medium flowing out of a heat source outlet of the sludge drying apparatus exchanges heat with a low-temperature medium when flowing through the surface cooler, so as to cool water in the sludge drying apparatus.
Optionally, the drying source circulation loop is further provided with a fan for providing gas circulation power.
Optionally, the absorption heat pump unit includes a lithium bromide heat pump unit.
Optionally, the system also comprises power generation equipment for incinerating the sludge dried by the sludge drying equipment to generate power; the power generation equipment is electrically connected with at least part of power utilization components in the sludge treatment system so as to transmit electric energy to supply all the components to work.
Drawings
FIG. 1 is a schematic block diagram of a sludge treatment system provided by the present invention;
fig. 2 is a schematic partial structure diagram of a specific embodiment of the sludge treatment system provided by the present invention.
Wherein, in fig. 2:
1-absorption heat pump unit; 11-an evaporator; 12-an absorber; 13-a condenser; 14-a generator;
2-sludge drying equipment; 3-a power generation device; 4-a heat exchanger; 5-surface cooler; 6, a fan; 7-cooling equipment.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic block diagram of a sludge treatment system provided by the present invention; fig. 2 is a schematic partial structure diagram of a specific embodiment of the sludge treatment system provided by the present invention.
The utility model provides a sludge treatment system, the mud-water mixture in the sludge treatment system is through the initial separation into two parts: wet sludge and waste water, wherein the waste water is subjected to advanced treatment to form advanced treatment waste heat water of secondary effluent, and the wet sludge is granulated and enters a subsequent drying process procedure to form dry sludge and fertilizer. The wet sludge is dried by using the sludge drying device 2, and the wet sludge is heated by high-temperature hot water or steam which is simultaneously introduced into the sludge drying device 2 in the process of introducing the wet sludge into the sludge drying device 2, so that part of moisture in the wet sludge is evaporated. The specific structure of the wet sludge drying device 2 and other devices of the drying process will not be described in detail, and reference may be made to the prior art.
The utility model provides a sludge treatment system further includes absorption heat pump unit 1 that sets up on sludge treatment system's second grade outlet conduit, and absorption heat pump unit 1 includes absorber 12, evaporimeter 11, generator 14 and condenser 13, and wherein solution between each part flows and the effect of each part please refer to prior art, and this paper here is not repeated.
The utility model discloses the waste heat pipeline of the evaporator 11 of well absorption heat pump unit 1 directly or indirectly communicates second grade outlet pipe way to retrieve the heat of advanced treatment waste heat water in the second grade outlet pipe way. That is to say, the secondary effluent is introduced into the evaporator 11 as heat energy for forming steam refrigerant, the steam refrigerant enters the absorber 12 and is absorbed by the concentrated solution, and the concentrated solution is diluted to release heat so as to heat the heat supply medium in the absorber 12 to form high-temperature heat energy. The high-temperature heat energy of the absorber 12 can be directly output for external use, for example, the high-temperature heat energy can be directly applied to a sludge drying device 2 of a sludge treatment system to provide sludge drying energy, and of course, the high-temperature heat energy is not limited to be applied to sludge drying, but also can be applied to processes such as material dehumidification and food drying.
To sum up, the utility model discloses well second grade goes out water energy and passes through further recycle of absorption heat pump, not only can realize energy saving and emission reduction, reduces the loss of sludge treatment system energy, and absorption heat pump does not have the compressor moreover, and is less to the electric energy dependence, can alleviate environmental power tension. Especially if the recovered energy is directly applied to sludge drying, the drying efficiency of the original process can be greatly improved.
In the above embodiments, the absorber 12 of the absorption heat pump unit 1 and the heat exchange tube of the condenser 13 are connected in series to form a high-temperature heat source circulation loop, which is used to provide sludge drying energy for the sludge drying apparatus 2 of the sludge treatment system. That is to say, the heat dissipated by diluting the concentrated solution in the absorber 12 and the heat condensed by the refrigerant vapor in the condenser 13 in the absorption heat pump unit 1 can be converted into the energy of the dried sludge, thereby greatly improving the energy consumption of the sludge system.
The high-temperature heat source output by the absorption heat pump unit 1 can be directly used for the sludge drying equipment 2, and certainly can also be transmitted to the sludge drying equipment 2 through an intermediate heat exchange component.
In a specific embodiment, the sludge treatment system may further include a heat exchanger 4, a first heat exchange channel and a second heat exchange channel capable of exchanging heat are disposed inside the heat exchanger 4, and specific forms of the first heat exchange channel and the second heat exchange channel are not limited.
A serial pipeline formed by the absorber 12 and the condenser 13 is connected with the first heat exchange channel in series to form a high-temperature heat source circulation loop, and a heat source inlet and a heat source outlet of the sludge drying equipment 2 are connected with the second heat exchange channel in series to form a drying source circulation loop.
Thus, the circulation loops on both sides of the heat exchanger 4 are independent of each other and can be used flexibly.
Usually, the sludge drying apparatus 2 heats and dries the sludge by using high-temperature steam, so the medium in the drying source circulation loop can be air, the drying source outlet of the sludge drying apparatus 2 is further connected with a surface cooler 5, and the medium flowing out from the heat source outlet of the sludge drying apparatus 2 exchanges heat with the low-temperature medium when flowing through the surface cooler 5, so as to cool the water inside the medium.
The surface air cooler 5 can be air-cooled or water-cooled, that is, a separate cooling device 7 is provided, and the air flowing through the surface air cooler 5 is cooled by the low-temperature medium in the cooling device 7.
In order to improve the air flow and further improve the drying efficiency, a fan 6 can be further arranged in the drying source circulation loop to provide air circulation power.
The absorption heat pump units 1 in the above embodiments may include a lithium bromide heat pump unit.
The sludge treatment system in each embodiment may further include a power generation device 3 for incinerating the sludge dried by the sludge drying device 2 to generate power; the power generation equipment 3 is electrically connected with at least part of the electric components in the sludge treatment system so as to transmit electric energy for the work of each component. I.e. the electrical energy source of the power plant 3, can also be used in other plants and process systems.
The sludge treatment system provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description is only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. The sludge treatment system is characterized by comprising an absorption heat pump unit (1) arranged on a secondary water outlet pipeline of the sludge treatment system, wherein a waste heat pipeline of an evaporator of the absorption heat pump unit (1) is directly or indirectly communicated with the secondary water outlet pipeline so as to recover heat of deeply treated waste heat water in the secondary water outlet pipeline.
2. The sludge treatment system according to claim 1, wherein the high temperature heat source provided by the absorption heat pump unit (1) is used for providing sludge drying energy for the sludge drying device (2) of the sludge treatment system.
3. The sludge treatment system according to claim 2, wherein the absorber of the absorption heat pump unit (1) and the heat exchange pipe of the condenser are connected in series to form a high-temperature heat source circulation loop for providing sludge drying energy for the sludge drying equipment (2) of the sludge treatment system.
4. The sludge treatment system according to claim 3, further comprising a heat exchanger (4), wherein a first heat exchange channel and a second heat exchange channel capable of exchanging heat are arranged inside the heat exchanger (4), a serial pipeline formed by the absorber and the condenser is connected in series with the first heat exchange channel to form the high-temperature heat source circulation loop, and a heat source inlet and an outlet of the sludge drying device (2) are connected in series with the second heat exchange channel to form a drying source circulation loop.
5. The sludge treatment system according to claim 4, wherein a surface cooler (5) is further connected to the drying source outlet of the sludge drying device (2), and the medium flowing out from the heat source outlet of the sludge drying device (2) exchanges heat with the low-temperature medium when flowing through the surface cooler (5) so as to cool the water inside the medium.
6. Sludge treatment system according to claim 4, wherein the drying source circulation loop is further provided with a fan (6) for providing gas circulation power.
7. Sludge treatment system according to claim 1, wherein the absorption heat pump unit (1) comprises a lithium bromide heat pump unit.
8. The sludge treatment system according to any one of claims 1 to 7, further comprising a power generation device (3) for incinerating sludge dried by the sludge drying device (2) of the sludge treatment system to generate power; the power generation equipment (3) is electrically connected with at least part of power utilization components in the sludge treatment system so as to transmit electric energy to supply all the components to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318220.6U CN212770409U (en) | 2020-07-07 | 2020-07-07 | Sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318220.6U CN212770409U (en) | 2020-07-07 | 2020-07-07 | Sludge treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212770409U true CN212770409U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021318220.6U Active CN212770409U (en) | 2020-07-07 | 2020-07-07 | Sludge treatment system |
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| Country | Link |
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| CN (1) | CN212770409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429106A (en) * | 2021-06-30 | 2021-09-24 | 荏原冷热系统（中国）有限公司 | Mud drying device and method |
-
2020
- 2020-07-07 CN CN202021318220.6U patent/CN212770409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429106A (en) * | 2021-06-30 | 2021-09-24 | 荏原冷热系统（中国）有限公司 | Mud drying device and method |
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