CN210855773U - Disc dryer and drainage structure thereof - Google Patents
Disc dryer and drainage structure thereof Download PDFInfo
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- CN210855773U CN210855773U CN201921543915.1U CN201921543915U CN210855773U CN 210855773 U CN210855773 U CN 210855773U CN 201921543915 U CN201921543915 U CN 201921543915U CN 210855773 U CN210855773 U CN 210855773U
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Abstract
The utility model discloses a disc drier and drainage structures thereof belongs to the environmental protection field, is equipped with the hollow shaft along its axial leads to long in the disc drier, its characterized in that, drainage structures connects the end at the hollow shaft, drainage structures is including the chamber that catchments, ladling out basin and spiral coil. The water collecting cavity is of a hollow structure and is communicated with the tail end of the hollow shaft, and one side, far away from the hollow shaft, of the water collecting cavity is communicated with the conveying pipe. The scooping water tank is connected to one side of the water collecting cavity close to the hollow shaft and is of a hollow structure and one side is open. One end of the spiral coil pipe is communicated with the water scooping groove, and the other end of the spiral coil pipe is communicated with the water collecting cavity, so that water in the water scooping groove is conveyed to the water collecting cavity. The drainage result of the disc dryer can obviously increase the phase change heat exchange area of the dryer, improve the heat exchange efficiency and safety, prolong the service life of equipment, reduce the overall energy consumption of the equipment and reduce the energy waste.
Description
Technical Field
The utility model relates to an environmental protection field specifically is a disc desiccator and drainage structures thereof.
Background
Domestic sludge annual output of China is higher than 3500 ten thousand tons, and industries such as printing and dyeing, papermaking, petrifaction, leather making and the like can also generate a large amount of sludge, wherein the annual output of printing and dyeing sludge is 2150 ten thousand tons. By 2015, the annual capacity of the facility for harmless treatment of sludge in China is 1369 ten thousand tons, which is far less than the domestic sludge yield in China. Therefore, the current status of sludge treatment and disposal in China is far from meeting the requirements of stabilization, reduction, harmlessness and resource treatment.
At present, common sludge treatment methods comprise sanitary landfill, land utilization, thermal drying and incineration and building material utilization. The prior experience proves that the sludge is dried and then is incinerated to be the most thorough sludge treatment method, the secondary pollution problem can be reduced while the organic matter heat of the sludge is fully utilized, in addition, viruses and bacteria can be killed at high temperature, and the utilization rate of the sludge resource is high.
In a sludge thermal drying system, a disc dryer is a relatively common system. The disc dryers on the market today often cause such problems during operation: the high-temperature steam and wet sludge indirectly contact with each other to generate condensed water after phase change heat exchange, and the condensed water is accumulated in the hollow shaft and the disc of the dryer and cannot be discharged in time, so that the phase change heat area of the dryer is greatly reduced, the heat exchange efficiency is reduced, and the service life and the safety of equipment are also reduced. In addition, the overall power consumption of the equipment is increased, and the energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a disc dryer and a drainage structure thereof, which aims to solve the problems that the condensed water generated in the operation process of the disc dryer on the market at present is accumulated in the hollow shaft of the dryer and the disc and can not be discharged in time, so that the heat exchange area of the dryer is greatly reduced, the heat exchange efficiency is reduced, and the service life and the safety of equipment are also reduced; the overall energy consumption of the equipment is increased, and the technical problem of energy waste is caused.
In order to solve the technical problem, the utility model provides a disc dryer's drainage structures, it leads to long being equipped with the hollow shaft to follow its axial in the disc dryer, drainage structure connects the end at the hollow shaft, drainage structures includes:
the water collecting cavity is of a hollow structure and is communicated with the tail end of the hollow shaft, and one side of the water collecting cavity, which is far away from the hollow shaft, is communicated with a conveying pipe;
the scooping water tank is connected to one side, close to the hollow shaft, of the water collecting cavity, is of a hollow structure, and one side of the scooping water tank is open;
and one end of the spiral coil pipe is communicated with the water scooping groove, and the other end of the spiral coil pipe is communicated with the water collecting cavity, so that water in the water scooping groove is conveyed to the water collecting cavity.
Preferably, the water collecting cavity is of a hollow cylinder structure, the water scooping groove is a cylinder with a sector ring-shaped section, and the water scooping groove is arranged along the circumferential direction of the water collecting cavity.
Preferably, a plurality of water collecting cavity air holes are formed in the side wall of the water collecting cavity.
Preferably, the number of the ladling troughs is multiple, the ladling troughs are arranged at intervals along the circumferential direction of the water collecting cavity, and a spiral coil pipe is communicated between each ladling trough and the water collecting cavity.
Preferably, the side wall of the water scooping groove is provided with water scooping groove air holes.
Additionally, the utility model also provides a disc dryer, include:
the machine body comprises a dome and a shell, wherein the middle of the upper side of the dome is provided with an air outlet, two ends of the upper side of the dome are respectively provided with a steam inlet and a feed inlet, and the lower side of the shell is provided with a discharge outlet;
the inner cylinder comprises a hollow shaft and discs, the hollow shaft is arranged in the shell along the axial length of the shell and can rotate around the central axis of the hollow shaft, the front end of the hollow shaft is a steam inlet, and the discs are sleeved outside the hollow shaft and are arranged at intervals along the axial direction of the hollow shaft;
a drainage structure, as described above, connected to the end of the hollow shaft;
the supporting seat is arranged at the bottom of the shell.
Preferably, the disc is of a hollow structure and is formed by butt welding two arc-shaped plates.
Preferably, the side wall of the disk is provided with a disk air outlet.
Preferably, the front end of the outer shell is arranged obliquely upwards and forms an included angle of 1-2 degrees with the horizontal direction.
Preferably, the housing is a jacket structure.
Compared with the prior art, the utility model discloses a characteristics and beneficial effect do:
(1) the utility model discloses can't in time discharge comdenstion water design a disc dryer drainage structures to disc dryer, this structural connection is at the end of hollow shaft, including catchmenting the chamber, ladling out basin and spiral coil pipe three, the comdenstion water that produces in the hollow shaft flows into in proper order and ladles out the basin, spiral coil pipe and catchments the chamber, and discharge from the conveyer pipe at last, can show increase desiccator phase transition heat transfer area, improves heat exchange efficiency and security, the life of extension equipment, reduces equipment overall power consumption simultaneously, and it is extravagant to reduce the energy.
(2) The utility model discloses a disc drier drainage structures can be according to the water production condition in the hollow shaft under the different work condition, can select not unidimensional ladling out basin, the spiral coil pipe of different screw pitches, internal diameter and the chamber that catchments to in time the interior comdenstion water that is produced by high temperature steam looks transform heat of hollow shaft, thereby the equipment that the reduction equipment leads to because of being heated the inequality warp, is showing the heat exchange efficiency who improves the desiccator.
(3) The utility model provides a disc desiccator with drainage structures, this desiccator take place the phase transition heat transfer back in high temperature steam and the indirect contact of mud, and the comdenstion water flows into in the drainage structures and discharges from the conveyer pipe, avoids the desiccator to produce because of receiving the inequality and warp and reduce the desiccator life-span.
Drawings
Fig. 1 is a schematic structural view of a disc dryer.
FIG. 2 is a schematic view of the connection between the water collecting cavity and the water scooping trough.
FIG. 3 is a schematic view of the connection of the water collection cavity to a single water scooping channel.
FIG. 4 is a schematic view of the structure of the water scooping trough.
Fig. 5 is a schematic structural view of the water collecting chamber.
FIG. 6 is a schematic view of the connection of the hollow shaft to the disk.
The attached drawings are marked as follows: 1-hollow shaft, 2-water collecting cavity, 3-water scooping groove, 4-spiral coil, 5-conveying pipe, 6-water collecting cavity air hole, 7-water scooping groove air hole, 8-dome, 10-shell, 11-air outlet, 12-steam inlet, 13-feed inlet, 14-discharge outlet, 15-disc, 16-inspection port, 17-disc air outlet and 18-supporting seat.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the disc dryer includes a body, an inner cylinder, a drainage structure and a support base 18. The fuselage includes dome 8 and shell 10, and 8 upside middle parts of dome have seted up gas outlet 11 for discharge sludge drying process in the waste gas that the evaporation produced, make the inside negative pressure state that keeps of desiccator, prevent that mud peculiar smell from leaking. Both ends of the upper side of the dome 8 are respectively provided with a steam inlet 12 and a feed inlet 13, and the steam inlet 12 is an access port for high-temperature steam. The feed inlet 13 is for sludge feed. The lower side of the shell 10 is provided with a discharge port 14 for discharging dried sludge. The upper side of the dome 8 is also provided with an inspection port 16, which is convenient for inspection when the dryer fails. The shell 10 is a jacket structure, and high-temperature steam is introduced into the shell 10 and used for heating the cylinder of the dryer and preserving heat. The front end of the shell 10 is arranged in an upward inclined manner and forms an included angle of 1-2 degrees with the horizontal direction, so that condensed water can automatically flow to the tail end of the hollow shaft 1.
The inner cylinder comprises a hollow shaft 1 and a disc 15, the specific structure is shown in fig. 6, the hollow shaft 1 is arranged in the shell 10 along the axial direction of the shell 10, and can rotate around the central axis of the hollow shaft 1, the front end of the hollow shaft 1 is a steam inlet, and high-temperature steam enters the machine body from the steam inlet 12 and enters from the front end of the hollow shaft 1. The disks 15 are sleeved outside the hollow shaft 1 and are arranged at intervals along the axial direction of the hollow shaft 1. The disc 15 is a hollow structure and is formed by butt welding two arc-shaped plates. The cavity of the disk 15 is divided into a plurality of sector areas by welded circular arc plates. The side wall of the disk 15 is provided with a disk air outlet 17 for effectively discharging air from the disk 15.
The drainage structure is connected to the end of the hollow shaft 1. A support seat 18 is provided at the bottom of the housing 10.
As shown in FIGS. 2 to 5, the drainage structure of the disc dryer includes a water collecting cavity 2, a water scooping groove 3 and a spiral coil 4.
The water collecting cavity 2 is of a hollow structure and is communicated with the tail end of the hollow shaft 1. One side of the water collecting cavity 2 far away from the hollow shaft 1 is communicated with a conveying pipe 5. A plurality of water collecting cavity air holes 6 are formed in the side wall of the water collecting cavity 2, so that air in the water collecting cavity 2 can be discharged in time.
The water scooping groove 3 is connected to one side of the water collecting cavity 2 close to the hollow shaft 1, and the water scooping groove 3 is of a hollow structure and is open at one side. The side wall of the water scooping groove 3 is provided with the water scooping groove air holes 7, so that accumulated water in the water scooping groove 3 can be drained in time.
One end of the spiral coil pipe 4 is communicated with the water scooping groove 3, and the other end is communicated with the water collecting cavity 2, so that water in the water scooping groove 3 is conveyed to the water collecting cavity 2.
The water collecting cavity 2 is preferably a hollow cylinder structure, the water scooping groove 3 is a cylinder with a sector ring section, and the water scooping groove 3 is arranged along the circumferential direction of the water collecting cavity 2. The quantity of ladling out basin 3 is a plurality of, and ladling out basin 3 sets up along the circumferencial direction interval of catchmenting chamber 2, and every ladling out basin 3 and catchment between the chamber 2 all communicate with a helical coil 4.
Sludge enters the machine body from the feed inlet 13. High-temperature steam enters the machine body from the steam inlet 12 and then enters the front end of the hollow shaft 1, the high-temperature steam in the hollow shaft 1 and sludge outside the hollow shaft 1 are subjected to heat exchange, and condensed water is generated on the inner wall of the hollow shaft 1. During the rotation of the hollow shaft 1 along the central axis thereof, the water scooping groove 3 scoops water, and the condensed water flows into the water collecting cavity 2 from the water scooping groove 3 along the spiral coil 4 and is finally discharged from the conveying pipe 5. The dried sludge is discharged from the machine body through a discharge port 14, and waste gas generated in the drying process is discharged from an air outlet 11.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims.
Claims (10)
1. The utility model provides a drainage structures of disc dryer, be equipped with hollow shaft (1) along its axial through length in the disc dryer, its characterized in that, drainage structures connects the end at hollow shaft (1), drainage structures includes:
the water collecting cavity (2) is of a hollow structure and is communicated with the tail end of the hollow shaft (1), and one side, far away from the hollow shaft (1), of the water collecting cavity (2) is communicated with a conveying pipe (5);
the scooping water tank (3) is connected to one side, close to the hollow shaft (1), of the water collecting cavity (2), and the scooping water tank (3) is of a hollow structure and one side of the scooping water tank is open;
and one end of the spiral coil pipe (4) is communicated with the water scooping groove (3), the other end of the spiral coil pipe is communicated with the water collecting cavity (2), and then water in the water scooping groove (3) is conveyed to the water collecting cavity (2).
2. The drain structure of a disc dryer according to claim 1, wherein: the water collecting cavity (2) is of a hollow cylinder structure, the water scooping groove (3) is a cylinder with a sector ring-shaped cross section, and the water scooping groove (3) is arranged along the circumferential direction of the water collecting cavity (2).
3. The drain structure of a disc dryer according to claim 2, wherein: a plurality of water collecting cavity air holes (6) are formed in the side wall of the water collecting cavity (2).
4. The drain structure of a disc dryer according to claim 2, wherein: the quantity of ladling out basin (3) is a plurality of, ladling out basin (3) and setting up along the circumferencial direction interval of catchmenting chamber (2), all communicate one spiral coil pipe (4) between every ladling out basin (3) and catchment chamber (2).
5. The drain structure of a disc dryer according to claim 1, wherein: the side wall of the water scooping groove (3) is provided with water scooping groove air holes (7).
6. A disc dryer characterized by comprising:
the device comprises a machine body, a water inlet, a water outlet and a steam outlet, wherein the machine body comprises a dome (8) and a shell (10), the middle of the upper side of the dome (8) is provided with the air outlet (11), two ends of the upper side of the dome (8) are respectively provided with the steam inlet (12) and the feed inlet (13), and the lower side of the shell (10) is provided with a discharge hole (14);
the inner cylinder comprises a hollow shaft (1) and discs (15), the hollow shaft (1) is arranged in the shell (10) along the axial length of the shell (10) and can rotate around the central axis of the hollow shaft (1), the front end of the hollow shaft (1) is a steam inlet, and the discs (15) are sleeved outside the hollow shaft (1) and are axially arranged at intervals along the hollow shaft (1);
the drainage structure of a disc dryer according to any one of claims 1 to 5, which is connected to the end of the hollow shaft (1);
and the supporting seat (18) is arranged at the bottom of the shell (10).
7. The disc dryer according to claim 6, wherein: the disc (15) is of a hollow structure and is formed by butt welding two arc-shaped plates.
8. The disc dryer according to claim 7, wherein: and the side wall of the disc (15) is provided with a disc air outlet (17).
9. The disc dryer according to claim 6, wherein: the front end of the shell (10) is arranged in an upward inclined mode and forms an included angle of 1-2 degrees with the horizontal direction.
10. The disc dryer according to claim 6, wherein: the shell (10) is of a jacket structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543915.1U CN210855773U (en) | 2019-09-17 | 2019-09-17 | Disc dryer and drainage structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543915.1U CN210855773U (en) | 2019-09-17 | 2019-09-17 | Disc dryer and drainage structure thereof |
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| Publication Number | Publication Date |
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| CN210855773U true CN210855773U (en) | 2020-06-26 |
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| CN201921543915.1U Active CN210855773U (en) | 2019-09-17 | 2019-09-17 | Disc dryer and drainage structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563305A (en) * | 2019-09-17 | 2019-12-13 | 北京国电龙源环保工程有限公司 | disc dryer and drainage structure thereof |
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- 2019-09-17 CN CN201921543915.1U patent/CN210855773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563305A (en) * | 2019-09-17 | 2019-12-13 | 北京国电龙源环保工程有限公司 | disc dryer and drainage structure thereof |
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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |