CN117263489A - Steam drying sludge system - Google Patents
Steam drying sludge system Download PDFInfo
- Publication number
- CN117263489A CN117263489A CN202311261970.2A CN202311261970A CN117263489A CN 117263489 A CN117263489 A CN 117263489A CN 202311261970 A CN202311261970 A CN 202311261970A CN 117263489 A CN117263489 A CN 117263489A
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- Prior art keywords
- sludge
- steam
- drying
- drying furnace
- cooling
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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 247
- 238000001035 drying Methods 0.000 title claims abstract description 194
- 238000005338 heat storage Methods 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims description 90
- 238000000227 grinding Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001599 direct drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a steam drying sludge system, and relates to the technical field of sludge treatment drying. The steam drying sludge system comprises: the drying device comprises a rotatable drying furnace, the drying furnace rotates to generate centrifugal force which can continuously throw sludge in the drying furnace from the center of the drying furnace to the furnace wall of the drying furnace, the drying furnace is provided with a sludge inlet and a sludge outlet, the sludge enters the drying furnace from the sludge inlet, and the dried sludge is discharged from the sludge outlet; the steam conveying device is used for conveying steam into the drying furnace through the mud inlet so as to dry the mud in the drying furnace; the sludge feeding device is used for conveying sludge into the drying furnace; the sludge discharging device is used for conveying dried sludge discharged from the sludge outlet; and the steam heat storage device is used for collecting and storing steam and providing the steam into the drying furnace through the steam conveying device. The steam drying sludge system improves the drying efficiency of the sludge and solves the problem of low efficiency of drying the sludge by utilizing the steam in the prior art.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a steam drying sludge system.
Background
At present, the coupling and the blending of sludge in a power station boiler are important measures, and the sludge is high in water content generally, and the high-proportion blending and the blending are liable to influence the combustion stability of the boiler; so how to reduce the sludge water content as much as possible is a problem to be solved at present. At present, the sludge is mainly subjected to direct drying and steam drying technology, wherein a large amount of sewage is not required to be treated by the direct drying, and the sludge has a good application prospect, but the energy consumption is high. The steam drying technology has the advantages of simple flow, controllable drying degree of the sludge, powdery drying products and the like. In the prior art, when sludge is dried, steam is introduced into the drying furnace while stirring the sludge, but the steam can only contact the sludge stirred on the surface all the time, so that the problems of long sludge drying time and low drying efficiency are solved, and therefore, a device capable of improving the efficiency of sludge drying is needed.
Disclosure of Invention
The embodiment of the invention aims to provide a steam drying sludge system which is used for solving the problem of low efficiency of drying sludge by utilizing steam in the prior art.
In order to achieve the above object, the present invention provides a steam drying sludge system comprising:
the drying device comprises a rotatable drying furnace, the drying furnace rotates to generate centrifugal force which can continuously throw sludge in the drying furnace from the center of the drying furnace to the furnace wall of the drying furnace, the drying furnace is provided with a sludge inlet and a sludge outlet, the sludge enters the drying furnace from the sludge inlet, and the dried sludge is discharged from the sludge outlet;
the steam conveying device is communicated with the mud inlet and is used for conveying steam into the drying furnace through the mud inlet;
the sludge feeding device is arranged at the sludge inlet and is used for conveying sludge into the drying furnace;
the sludge discharging device is arranged at the sludge outlet and is used for conveying dried sludge discharged from the sludge outlet;
and the steam heat storage device is communicated with the steam conveying device and is used for collecting and storing steam and providing the steam into the drying furnace through the steam conveying device so as to dry sludge in the drying furnace.
Specifically, the drying furnace is of a cylindrical structure, the rotation center line of the drying furnace forms a first given included angle with the horizontal plane, and the horizontal height of the mud inlet is higher than that of the mud outlet.
Specifically, the drying device further comprises a plurality of grinding blocks, wherein the plurality of grinding blocks are movably arranged in the drying furnace and used for grinding sludge in the process of driving the sludge to rotate by the rotation of the drying furnace.
Specifically, the drying device further comprises a plurality of heat storage blocks, and the plurality of heat storage blocks are arranged in the drying furnace along the circumferential direction of the drying furnace and are used for absorbing and storing heat of steam and driving the plurality of grinding blocks to rotate.
Specifically, the drying device further comprises: the sludge discharge device comprises a drying furnace, a sludge discharge device and a plurality of guide blocks, wherein the guide blocks are uniformly distributed at the sludge discharge opening in the drying furnace along the circumferential direction of the drying furnace and used for guiding dried sludge to the sludge discharge device in the rotating process of the drying furnace.
Specifically, the drying device further comprises a plurality of humidity detectors, wherein the humidity detectors are arranged at the sludge outlet in the drying furnace and are used for detecting the humidity of dried sludge.
Specifically, the steam drying sludge system further comprises a steam circulation pipeline arranged between the sludge outlet and the sludge inlet and used for recovering steam discharged from the sludge outlet and sending the discharged steam into the drying furnace through the sludge inlet again.
Specifically, the steam drying sludge system further comprises: and the cooling device is used for receiving the dried sludge conveyed by the sludge discharging device and cooling the dried sludge.
Specifically, the cooling device comprises a cooling cylinder and a cooling driver;
the cooling cylinder is used for receiving the dried sludge conveyed by the sludge discharging device, conveying cooling medium into the cooling flow channel and cooling the dried sludge entering the cooling cylinder;
the cooling driver is used for driving the cooling cylinder to rotate.
Specifically, the cooling cylinder comprises an inner sleeve and an outer sleeve, the outer sleeve is sleeved on the inner sleeve, a cooling cavity is formed between the outer sleeve and the inner sleeve, and the cooling flow passage is arranged in the cooling cavity.
According to the steam drying sludge system provided by the invention, the steam heat storage device is used for continuously supplying steam into the drying furnace through the sludge inlet of the drying furnace through the steam conveying device, the sludge is conveyed into the drying furnace through the sludge inlet through the sludge feeding device, and the sludge conveyed into the drying furnace is continuously thrown towards the furnace wall of the drying furnace under the action of centrifugal force generated by rotation of the drying furnace, so that the sludge in the drying furnace can be more dispersed to be better contacted with the steam conveyed into the drying furnace, the drying efficiency of the sludge is greatly improved, and the dried sludge is conveyed out through the sludge discharging device, so that the drying of the sludge is completed.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain, without limitation, the embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of the layout structure of a steam drying sludge system provided by the invention;
fig. 2 is a schematic structural diagram of a drying furnace in the steam drying sludge system provided by the invention;
FIG. 3 is a B-B cross-sectional view of a kiln in the steam-dried sludge system of FIG. 2;
FIG. 4 is a cross-sectional view A-A of a kiln in the steam-dried sludge system of FIG. 2;
fig. 5 is a C-C cross-sectional view of a cooling cylinder of a cooling device in a steam drying sludge system provided by the invention.
Description of the reference numerals
1-a drying furnace; 2-a steam delivery device; 3-a sludge feeding device; 4-a sludge discharging device; 5-a steam heat storage device; 6-a steam circulation pipeline; 7-a cooling device; 11-grinding the blocks; 12-a guide block; 13-a heat storage block; 21-steam pipe; 71-a cooling cylinder; 710-inner sleeve; 711-coat.
Detailed Description
The following describes the detailed implementation of the embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Fig. 1 is a schematic layout structure of a steam drying sludge system, fig. 2 is a schematic structure of a drying furnace in the steam drying sludge system, fig. 3 is a B-B sectional view of the drying furnace in the steam drying sludge system of fig. 2, fig. 4 is A-A sectional view of the drying furnace in the steam drying sludge system of fig. 2, and fig. 5 is a C-C sectional view of a cooling cylinder of a cooling device in the steam drying sludge system. As shown in fig. 1 to 5, the steam drying sludge system provided by the invention comprises:
the drying device comprises a rotatable drying furnace 1, wherein the drying furnace 1 rotates to generate centrifugal force so as to continuously throw sludge in the drying furnace 1 from the center of the drying furnace 1 to the furnace wall of the drying furnace 1, the drying furnace 1 is provided with a sludge inlet and a sludge outlet, the sludge enters the drying furnace 1 from the sludge inlet, and the dried sludge is discharged from the sludge outlet;
the steam conveying device 2 is communicated with the mud inlet and is used for conveying steam into the drying furnace 1 through the mud inlet;
the sludge feeding device 3 is arranged at the sludge inlet and is used for conveying sludge into the drying furnace 1;
the sludge discharging device 4 is arranged at the sludge outlet and is used for conveying dried sludge discharged from the sludge outlet;
a steam heat storage device 5 is communicated with the steam conveying device 2, and the steam heat storage device 5 is used for collecting and storing steam and supplying the steam into the drying furnace 1 through the steam conveying device 2 so as to dry sludge in the drying furnace 1.
According to the steam drying sludge system provided by the invention, the steam heat storage device 5 is used for continuously supplying steam into the drying furnace 1 through the steam conveying device 2, the sludge feeding device 3 is used for conveying sludge into the drying furnace 1 through the sludge inlet, and in the rotating process of the drying furnace 1, the sludge in the furnace is continuously thrown to the furnace wall by the centrifugal force generated by the rotation of the drying furnace 1, so that the sludge entering the drying furnace 1 can be more dispersed and can be better contacted with the steam, the drying speed of the sludge is accelerated, and the dried sludge is discharged through the sludge outlet and is conveyed to a designated area by the sludge discharging device 4.
In one embodiment, the drying furnace 1 is in a cylindrical structure, the rotation center line of the drying furnace 1 forms a first given included angle with the horizontal plane, and the horizontal height of the mud inlet is higher than the horizontal height of the mud outlet. As shown in fig. 2, the drying furnace 1 is obliquely arranged, a first given included angle is formed between the rotation center line and the horizontal plane of the drying furnace 1, the first given included angle is set according to actual needs, in order to enable sludge to smoothly enter from a sludge inlet and then move to a sludge outlet, the sludge inlet is higher than the sludge outlet, so that the sludge slowly flows to the sludge outlet under the action of rotation and self gravity, as shown in fig. 2, the steam conveying device 2 comprises a steam pipe 21, a plurality of steam inlets are formed in the steam pipe 21, one end of the steam pipe 21 is communicated with the steam heat storage device 5, the other end of the steam pipe extends into the drying furnace 1, the steam inlet is formed at one end of the steam pipe 21 extending into the drying furnace 1, and in order to enable the steam to be better contacted with the sludge to dry the sludge, the steam pipe 21 is arranged at the middle position of the drying furnace 1, the steam provided by the steam heat storage device 5 is conveyed through the steam pipe 21 and sprayed into the drying furnace 1 from the plurality of steam inlets on the steam pipe 21, and in order to improve the utilization rate of energy, and the steam storage device 5 can be communicated with the steam outlet of a steam turbine to store the steam generated by work, so as to improve the utilization rate of the energy.
In order to make the sludge finer, the drying device further comprises a plurality of grinding blocks 11, wherein the plurality of grinding blocks 11 are movably arranged in the drying furnace 1 and are used for grinding the sludge in the process of driving the sludge to rotate by the rotation of the drying furnace 1.
In order to avoid that the steam fed into the drying furnace 1 is discharged from the mud outlet to take away heat, the drying device further comprises a plurality of heat storage blocks 13, and the plurality of heat storage blocks 13 are arranged in the drying furnace 1 along the circumferential direction of the drying furnace 1 and are used for absorbing and storing the heat of the steam and driving the plurality of grinding blocks 1 to rotate. The heat in the steam absorbed by the heat storage block 13 enables the heat storage block 13 to dry the sludge in the process of contacting with the sludge, thereby accelerating the drying efficiency of the sludge.
In the rotating process of the drying furnace 1, the heat storage blocks 13 arranged along the inner circumference of the drying furnace 1 not only can absorb and store heat in steam, but also can drive the grinding blocks 11 to rotate, and the grinding blocks 11 are heavier in weight, in the rotating process of the drying furnace 1, the grinding blocks 11 can be driven to the highest position in the furnace through the heat storage blocks 13, and then the grinding blocks 11 fall and strike on sludge in the furnace, so that large granular substances in the sludge can be crushed, and meanwhile, the grinding blocks 11 continuously rub with the sludge in the furnace and other grinding blocks 11 to grind the sludge in the rotating process of the sludge in the furnace, so that the sludge is finer.
The drying device further comprises: the sludge drying device further comprises a plurality of guide blocks 12, wherein the guide blocks 12 are uniformly distributed at the sludge outlet in the drying furnace 1 along the circumferential direction of the drying furnace 1 and are used for guiding dried sludge to the sludge discharging device 4 in the rotating process of the drying furnace 1.
As shown in fig. 4, the heat in the steam is quickly absorbed and stored by the plurality of heat storage blocks 13 arranged in the drying furnace 1, so that the heat is prevented from being taken away by the steam discharged from the sludge outlet, the heat storage blocks 11 uniformly distributed on the inner wall of the drying furnace 1 along the circumferential direction of the drying furnace 1 can also drive the plurality of grinding blocks 11 to rotate in the process of rotating along with the drying furnace 1, the grinding blocks 11 continuously rub with the sludge to grind the sludge, the sludge is finer, the sludge flows to the sludge outlet of the drying furnace 1 after drying for a period of time and is thrown to the furnace wall under the action of centrifugal force generated by the rotation of the drying furnace 1, and in order to smoothly send the dried sludge thrown to the furnace wall of the drying furnace 1 to the sludge discharging device 4, the sludge thrown to the furnace wall of the drying furnace 1 is guided into the sludge discharging device 4 through the plurality of guide blocks 12 arranged at the sludge outlet of the drying furnace 1, the dried sludge is sent out through the sludge discharging device 4, and the sludge discharging device 3 and the sludge discharging device 4 can be a shaft screw conveyor or a shaftless screw conveyor.
In order to accurately acquire the humidity of the dried sludge and judge whether the dried sludge meets the requirements, the drying device further comprises a plurality of humidity detectors arranged at the sludge outlet in the drying furnace 1 and used for detecting the humidity of the dried sludge. The staff sets up humidity detector according to the mud mouth and accurately acquires the humidity of the mud after the desiccation, provides the reference for adjusting the temperature of the steam that sends into in the desiccation stove 1.
In order to fully utilize energy, the steam drying sludge system further comprises a steam circulation pipeline 6 arranged between the sludge outlet and the sludge inlet and used for recovering steam discharged from the sludge outlet and sending the discharged steam into the drying furnace 1 through the sludge inlet again. The steam discharged from the mud outlet is led into the drying furnace 1 through the mud inlet again through the steam circulation pipeline 6, so that heat waste is avoided, and a control valve can be arranged on the steam circulation pipeline 6 to control the flow rate of the steam which is re-fed into the drying furnace 1 through the steam circulation pipeline 6.
In one embodiment, the temperature of the sludge sent by the sludge discharging device 4 is higher, and spontaneous combustion is possible to happen, so that danger is caused, and the steam drying sludge system further comprises: and the cooling device 7 is used for receiving the dried sludge conveyed by the sludge discharging device 4 and cooling the dried sludge.
The cooling device 7 comprises a cooling cylinder 71 and a cooling drive;
the cooling cylinder 71 is provided with a cooling flow passage, and the cooling cylinder 71 is used for receiving the dried sludge conveyed by the sludge discharging device 4; the dried sludge entering the cooling cylinder 71 can be cooled by conveying cooling medium into the cooling flow passage;
the cooling driver is configured to drive the cooling cylinder 71 to rotate.
The cooling cylinder 71 comprises an inner sleeve 710 and an outer sleeve 711, the outer sleeve 711 is sleeved on the inner sleeve 710, a cooling cavity is formed between the outer sleeve 711 and the inner sleeve 710, and the cooling flow passage is arranged in the cooling cavity.
The dried sludge is sent into the cooling cylinder 71 through the sludge discharging device 4, the cooling cylinder 71 is provided with a cooling inlet and a cooling outlet, and the cooling cylinder 71 is obliquely arranged so that the cooling inlet is higher than the cooling outlet, so that the dried sludge can be smoothly discharged from the cooling outlet. The cooling cavity between the inner sleeve 710 and the outer sleeve 711 of the cooling cylinder 71 can be regarded as a cooling flow passage, cooling medium is introduced into the cooling cavity, the cooling medium can be cooling liquid, cooling oil or cooling gas, the dried sludge is cooled by heat exchange between the cooling medium introduced into the cooling cavity and the dried sludge entering the cooling cylinder 71, and the dried sludge is discharged from a cooling outlet of the cooling cylinder 71; the cooling driver drives the cooling cylinder 71 to rotate, the rotating cooling cylinder 71 drives the dried sludge to turn in the cooling cylinder 71, so that the dried sludge and a cooling medium in the cooling cavity can be subjected to better heat exchange, a plurality of stirring strips can be uniformly distributed on the inner cylinder wall of the cooling cylinder 71, the dried sludge can be carried to the highest position of the cooling cylinder 71 through the stirring strips when the cooling cylinder 71 rotates, and the cooling efficiency of the dried sludge is accelerated.
In another embodiment, a cooling flow passage is arranged in the cooling cavity between the inner sleeve 710 and the outer sleeve 711, a plurality of medium guide plates can be arranged in the cooling cavity, each medium guide plate is connected and fixed with the inner sleeve 710 and the outer sleeve 711 at the same time, the cooling flow passage is separated in the cooling cavity through the plurality of medium guide plates, and the flow direction of the cooling medium is controlled through the cooling flow passage separated by the arranged medium guide plates.
In order to determine whether the dried sludge is cooled to a proper temperature, the cooling device 7 further comprises a temperature detector disposed in the cooling cylinder 71 for detecting the temperature of the dried sludge in the cooling cylinder 71. The temperature detector is provided at the cooling outlet of the cooling cylinder 71.
According to the steam drying sludge system provided by the invention, the steam heat storage device is used for continuously supplying steam into the drying furnace through the sludge inlet of the drying furnace through the steam conveying device, the sludge is conveyed into the drying furnace through the sludge inlet through the sludge feeding device, and the sludge conveyed into the drying furnace is continuously thrown towards the furnace wall of the drying furnace under the action of centrifugal force generated by rotation of the drying furnace, so that the sludge in the drying furnace can be more dispersed to be better contacted with the steam conveyed into the drying furnace, the drying efficiency of the sludge is greatly improved, and the dried sludge is conveyed out through the sludge discharging device, so that the drying of the sludge is completed.
The foregoing details of the optional implementation of the embodiment of the present invention have been described in detail with reference to the accompanying drawings, but the embodiment of the present invention is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present invention within the scope of the technical concept of the embodiment of the present invention, and these simple modifications all fall within the protection scope of the embodiment of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of embodiments of the present invention are not described in detail.
In addition, any combination of various embodiments of the present invention may be performed, so long as the concept of the embodiments of the present invention is not violated, and the disclosure of the embodiments of the present invention should also be considered.
Claims (10)
1. A steam drying sludge system, the steam drying sludge system comprising:
the drying device comprises a rotatable drying furnace (1), sludge in the drying furnace (1) can be continuously thrown to the furnace wall of the drying furnace (1) from the center of the drying furnace (1) by centrifugal force generated by rotation of the drying furnace (1), the drying furnace (1) is provided with a sludge inlet and a sludge outlet, the sludge enters the drying furnace (1) from the sludge inlet, and the dried sludge is discharged from the sludge outlet;
the steam conveying device (2) is communicated with the mud inlet and is used for conveying steam into the drying furnace (1) through the mud inlet;
the sludge feeding device (3) is arranged at the sludge inlet and is used for conveying sludge into the drying furnace (1);
the sludge discharging device (4) is arranged at the sludge outlet and is used for conveying dried sludge discharged from the sludge outlet;
the steam heat storage device (5) is communicated with the steam conveying device (2), and the steam heat storage device (5) is used for collecting and storing steam and supplying the steam into the drying furnace (1) through the steam conveying device (2) so as to dry sludge in the drying furnace (1).
2. The steam drying sludge system as claimed in claim 1, wherein the drying furnace (1) is of a cylindrical structure, a rotation center line of the drying furnace (1) forms a first given included angle with a horizontal plane, and the horizontal height of the sludge inlet is higher than the horizontal height of the sludge outlet.
3. The steam drying sludge system as claimed in claim 1, wherein the drying device further comprises a plurality of grinding blocks (11), and the plurality of grinding blocks (11) are movably arranged in the drying furnace (1) and are used for grinding sludge in the process of driving the sludge to rotate by the rotation of the drying furnace (1).
4. A steam drying sludge system as claimed in claim 3, wherein the drying apparatus further comprises a plurality of heat storage blocks (13), and the plurality of heat storage blocks (13) are arranged in the drying furnace (1) along the circumferential direction of the drying furnace (1) and are used for absorbing and storing heat of steam and driving the plurality of grinding blocks (11) to rotate.
5. The steam drying sludge system as claimed in claim 1, wherein the drying device further comprises a plurality of guide blocks (12), and the plurality of guide blocks (12) are uniformly distributed at the sludge outlet in the drying furnace (1) along the circumferential direction of the drying furnace (1) and are used for guiding the dried sludge to the sludge discharging device (4) in the rotation process of the drying furnace (1).
6. The steam drying sludge system as claimed in claim 1, wherein the drying device further comprises a plurality of humidity detectors arranged at the sludge outlet in the drying furnace (1) for detecting the humidity of the dried sludge.
7. The steam drying sludge system as claimed in claim 1, further comprising a steam circulation line (6) provided between the sludge outlet and the sludge inlet for recovering the steam discharged from the sludge outlet and feeding the discharged steam into the drying oven (1) again through the sludge inlet.
8. The steam dried sludge system of claim 1, further comprising: and the cooling device (7) is used for receiving the dried sludge conveyed by the sludge discharging device (4) and cooling the dried sludge.
9. The steam dried sludge system as claimed in claim 8, characterized in that the cooling device (7) comprises a cooling drum (71) and a cooling drive;
the cooling cylinder (71) is provided with a cooling flow passage, and the cooling cylinder (71) is used for receiving the dried sludge conveyed by the sludge discharging device (4); the dried sludge entering the cooling cylinder (71) can be cooled by conveying cooling medium into the cooling flow channel;
the cooling driver is used for driving the cooling cylinder (71) to rotate.
10. The steam drying sludge system of claim 9, wherein the cooling cylinder (71) comprises an inner sleeve (710) and an outer sleeve (711), the outer sleeve (711) is sleeved on the inner sleeve (710), a cooling cavity is formed between the outer sleeve (711) and the inner sleeve (710), and the cooling flow passage is arranged in the cooling cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261970.2A CN117263489A (en) | 2023-09-27 | 2023-09-27 | Steam drying sludge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311261970.2A CN117263489A (en) | 2023-09-27 | 2023-09-27 | Steam drying sludge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117263489A true CN117263489A (en) | 2023-12-22 |
Family
ID=89200561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311261970.2A Pending CN117263489A (en) | 2023-09-27 | 2023-09-27 | Steam drying sludge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117263489A (en) |
-
2023
- 2023-09-27 CN CN202311261970.2A patent/CN117263489A/en active Pending
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