CN214307160U - Slag cooler with waste heat recovery function - Google Patents
Slag cooler with waste heat recovery function Download PDFInfo
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- CN214307160U CN214307160U CN202022678234.5U CN202022678234U CN214307160U CN 214307160 U CN214307160 U CN 214307160U CN 202022678234 U CN202022678234 U CN 202022678234U CN 214307160 U CN214307160 U CN 214307160U
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- slag
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Abstract
The utility model discloses a cold sediment machine with waste heat recovery function, include rotary barrel, strutting arrangement, transmission, inlet pipe, ejection of compact cover, spray and press from both sides parts such as cover, heat exchange coil. The inside two sets of coils that set up of rotatory barrel are the heat recovery coil of barrel first half section and the cooling coil of barrel second half section respectively, set up in the outside of rotatory barrel second half section and spray the cover. Slag enters the inside of the rotary cylinder through the feeding pipe at the front end of the rotary cylinder, and is discharged from the discharging cover at the rear end of the rotary cylinder after waste heat recovery and cooling. The utility model discloses can carry out waste heat recovery to the higher slag charge of temperature, reduce the production energy consumption, avoid the waste of the energy.
Description
Technical Field
The utility model belongs to the technical field of cold sediment machine technique and specifically relates to a cold sediment machine with waste heat recovery function is related to.
Background
The slag cooler is widely applied to the industrial fields of chemical industry, metallurgy, building materials, environmental protection and the like, and is mainly used for cooling various solid slag materials, such as cooling gypsum slag, cooling calcined slag, cooling ash slag after refuse incineration, cooling ash slag after boiler combustion and the like in the hydrogen fluoride production process. Because the solid slag has the characteristics of poor slag fluidity, low heat transfer coefficient and the like, the cooling technology of the domestic solid slag is developed slowly all the time, and the currently common cooling modes of the solid slag mainly comprise: a cooling method of direct contact with water, a natural cooling method of direct contact with air; the cooling methods of the slag cooler with indirect spray cooling and the like mostly have the defects of environmental pollution, low heat exchange efficiency, high energy consumption, incapability of recovering heat and the like.
Disclosure of Invention
To current solid slag charge cooling technology current situation, the utility model aims to provide a cold sediment machine with waste heat recovery function realizes waste heat recovery, and heat exchange efficiency is high.
The technical scheme of the utility model is that: a slag cooler with a waste heat recovery function comprises a rotary cylinder body, and is characterized in that the rotary cylinder body is supported by a two-gear or multi-gear supporting device; two groups of coil pipes are arranged in the rotary cylinder body, namely a heat recovery coil pipe at the front half section of the cylinder body and a cooling coil pipe at the rear half section of the cylinder body; a spraying jacket is arranged outside the rear half section of the rotary cylinder body, and the spraying jacket cylinder body is coaxial with the rotary cylinder body but does not rotate along with the rotary cylinder body; a fixed cover is arranged at the front end of the rotary cylinder body, the fixed cover is static and does not rotate, and a feeding pipe is arranged on the fixed cover; a discharging cover is arranged at the rear end of the rotary cylinder body; the rotating cylinder is provided with a transmission device and is driven to rotate; solid slag material passes through rotatory barrel front end the inlet pipe enters into the inside of rotatory barrel, through waste heat recovery and cooling back, from setting up rotatory barrel rear end ejection of compact cover discharges.
Further, the rotating cylinder is arranged obliquely, and the solid slag moves from the front end to the rear end of the rotating cylinder due to gravity during the rotation of the inclined cylinder.
Furthermore, the heat recovery coil is led out of the rotary cylinder through a front rotary joint, and a hot water inlet and a steam outlet are arranged on the front rotary joint.
Furthermore, the cooling coil is led out of the rotary cylinder from the rear end through a rear rotary joint, a cooling water inlet and a cooling water outlet are formed in the rear rotary joint, and the cooling water in the cooling coil cools the solid slag to be below the temperature required by the process.
Furthermore, the upper part of the spraying jacket is provided with a cooling water inlet and a distribution pipe, the distribution pipe is uniformly provided with a plurality of small holes along the axial direction, and cooling water passes through the distribution pipe and is uniformly distributed in the axial direction and sprayed on the outer surface of the rotary cylinder.
Furthermore, a jacket exhaust port is arranged at the upper part of the spraying jacket, and a cooling water outlet is arranged at the lower part of the spraying jacket.
Furthermore, a plurality of discharging holes are formed in the rear end of the rotary cylinder along the circumference, a discharging cover is arranged outside each discharging hole, and solid slag cooled to a temperature lower than the process requirement temperature falls into the discharging cover through the discharging holes and is discharged from a discharging hole in the lower end of the discharging cover.
Furthermore, an exhaust port is arranged at the upper part of the discharging cover and used for exhausting water vapor or waste gas generated in the cooling process.
Furthermore, a spray pipe is arranged at the discharge port of the discharge cover, and part of the cooling water is sprayed onto the slag through the spray pipe.
Furthermore, a dynamic and static sealing device is arranged between the rotary cylinder and the front end fixed cover and the rear end discharge cover, so that the cooling process of the fixed slag materials is ensured to be carried out in a closed space; and a sealing structure is also arranged between the two ends of the spraying jacket and the rotary cylinder body, so that the circulating cooling water is prevented from overflowing.
Compared with the prior art, the utility model, have following advantage:
(1) the device is horizontal rotary-type equipment, and slag charge flow path is broad, can solve the poor problem of solid slag charge mobility, avoids the emergence of circumstances such as putty, card material.
(2) The cooling process of the fixed slag is carried out in the closed rotary cylinder, and the generated waste gas is discharged through the exhaust port and then is treated, so that the adverse effect on the surrounding environment is basically avoided, and the method belongs to an environment-friendly production process;
(3) the device sets up the heat recovery section, can carry out waste heat recovery to the higher slag charge of temperature and utilize, reduces the production energy consumption, has avoided the waste of the energy.
Drawings
FIG. 1 is a schematic view of a slag cooler with waste heat recovery;
the codes in the figures represent: 1-front rotary joint, 2-fixed cover, 3-feeding pipe, 4-rotary cylinder, 5-heat recovery coil pipe, 6-support device, 7-transmission device, 8-spraying jacket, 9-distribution pipe, 10-cooling water inlet, 11-cooling coil pipe, 12-jacket exhaust port, 13-discharging cover, 14-exhaust port, 15-rear rotary joint, 16-spraying pipe, 17-discharging port, 18-dynamic and static sealing device, 19-sealing structure and 20-cooling water outlet.
Detailed Description
The contents of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a slag cooler with a waste heat recovery function mainly comprises a rotary cylinder 4, a supporting device 6, a transmission device 7, a feeding pipe 3, a discharging cover 13, a spraying jacket 8, a heat exchange coil and other parts. Two sets of coils are arranged inside the rotary cylinder body 4, namely a heat recovery coil 5 at the front half section of the cylinder body and a cooling coil 11 at the rear half section of the cylinder body, and the spraying jacket 8 is arranged outside the rear half section of the rotary cylinder body 4. Slag enters the inside of the rotary barrel 4 through the feeding pipe 3 at the front end of the rotary barrel 4, and is discharged from the discharging cover 13 at the rear end of the rotary barrel 4 after waste heat recovery and cooling.
The front end of the rotary cylinder body 4 is provided with a fixed cover 2, the fixed cover 2 is static and does not rotate, and the feeding pipe 3 is arranged on the fixed cover 2.
Rotatory barrel 4 can be supported by two shelves or many shelves strutting arrangement 6 according to specification size, and transmission 7 sets up the suitable position on rotatory barrel 4 to drive rotatory barrel 4 and rotate, rotatory barrel 4 slope is arranged, and the barrel of slope is at rotatory in-process, and solid slag material is because the effect of gravity moves from the front end of rotatory barrel 4 to the rear end.
The heat recovery coil pipe 5 of the first half section of rotatory barrel 4 draws forth rotatory barrel 4 outside through preceding rotary joint 1, sets up hot water inlet and steam outlet in the front on rotary joint 1, and the higher solid slag charge of temperature carries out the heat exchange with heat recovery coil pipe 5 when rotatory barrel 4 first half section, carries out waste heat recovery through producing low pressure steam. The temperature of the solid slag after heat recovery is reduced to below 200 ℃ and enters the second half section of the rotary cylinder 4. The rear half section of the rotary cylinder 4 is provided with a cooling coil 11, the cooling coil 11 is led out of the rotary cylinder 4 from the rear end through a rear rotary joint 15, the rear rotary joint 15 is provided with a cooling water inlet and a cooling water outlet, and the cooling water in the cooling coil 11 cools the solid slag below the temperature required by the process.
When the amount of the solid slag needing to be cooled is large, or the temperature of the solid slag is high, in order to increase the heat exchange area of equipment and reduce the size of the equipment, the spraying jacket 8 is arranged outside the rear half section of the rotary cylinder 4, and the setting range of the spraying jacket 8 is basically consistent with that of the cooling coil 11. The spraying jacket 8 is coaxial with the rotary cylinder 4, but does not rotate with the rotary cylinder 4. The upper part of the spraying jacket 8 is provided with a cooling water inlet 10 and a distribution pipe 9, the distribution pipe 9 is uniformly provided with a plurality of small holes along the axial direction, and the cooling water is uniformly distributed in the axial direction through the distribution pipe 9 and is sprayed on the outer surface of the rotary cylinder 4. The upper part of the spray jacket 8 is also provided with a jacket exhaust port 12, and the lower part thereof is provided with a cooling water outlet 20.
A plurality of discharging holes are formed in the rear end of the rotary cylinder body 4 along the circumference, and discharging covers 13 are arranged outside the discharging holes. The solid slag cooled to the temperature below the technological requirement falls into the discharging cover 13 through the discharging hole and is discharged from a discharging hole 17 at the lower end of the discharging cover 13. The upper part of the discharging cover 13 is provided with an exhaust port 14 for exhausting water vapor or waste gas generated in the cooling process.
If the solid slag needs to be humidified after being cooled, a spray pipe 16 can be arranged at a discharge hole 17 of the discharge cover 14, and part of cooling water is sprayed onto the slag through the spray pipe 16, so that the effect of spraying water and humidifying the slag is achieved.
A dynamic and static sealing device 18 is arranged between the rotary cylinder 4 and the front end fixed cover 2 and between the rotary cylinder and the rear end discharge cover 13, so that the cooling process of the fixed slag materials is ensured to be carried out in a closed space; and a sealing structure 19 is also arranged between the two ends of the spraying jacket 8 and the rotary cylinder 4 to prevent the circulating cooling water from overflowing.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention.
Claims (10)
1. A slag cooler with a waste heat recovery function comprises a rotary cylinder body (4), and is characterized in that the rotary cylinder body (4) is supported by a two-gear or multi-gear supporting device (6); two groups of coil pipes are arranged in the rotary cylinder body (4), namely a heat recovery coil pipe (5) at the front half section of the cylinder body and a cooling coil pipe (11) at the rear half section of the cylinder body; a spraying jacket (8) is arranged outside the rear half section of the rotary cylinder (4), and the cylinder of the spraying jacket (8) is coaxial with the rotary cylinder (4) but does not rotate together with the rotary cylinder (4); a fixed cover (2) is arranged at the front end of the rotary cylinder body (4), the fixed cover (2) is static and does not rotate, and a feeding pipe (3) is arranged on the fixed cover (2); a discharging cover (13) is arranged at the rear end of the rotary cylinder body (4); a transmission device (7) is arranged on the rotary cylinder body (4) and drives the rotary cylinder body (4) to rotate; solid slag material passes through rotatory barrel (4) front end inlet pipe (3) enter into the inside of rotatory barrel (4), through waste heat recovery and cooling back, from setting up rotatory barrel (4) rear end ejection of compact cover (13) discharge.
2. A slag cooler with waste heat recovery function according to claim 1, characterized in that the rotary cylinder (4) is arranged obliquely, and the oblique cylinder moves solid slag from the front end to the rear end of the rotary cylinder (4) due to gravity during rotation.
3. Slag cooler with waste heat recovery function according to claim 1, characterized in that the heat recovery coil (5) is led out of the rotary cylinder (4) through a front rotary joint (1), and a hot water inlet and a steam outlet are provided on the front rotary joint (1).
4. The slag cooler with waste heat recovery function according to claim 1, characterized in that the cooling coil (11) is led out from the rear end to the outside of the rotary cylinder (4) through a rear rotary joint (15), a cooling water inlet and a cooling water outlet are arranged on the rear rotary joint (15), and the cooling water in the cooling coil (11) cools the solid slag to the temperature below the process requirement.
5. The slag cooler with the waste heat recovery function according to claim 1, wherein a cooling water inlet (10) and a distribution pipe (9) are arranged at the upper part of the spraying jacket (8), a plurality of small holes are uniformly formed in the distribution pipe (9) along the axial direction, and the cooling water is uniformly distributed in the axial direction through the distribution pipe (9) and sprayed on the outer surface of the rotary cylinder (4).
6. The slag cooler with waste heat recovery function of claim 5, characterized in that the spraying jacket (8) is also provided with jacket exhaust ports (12) at the upper part and cooling water outlets (20) at the lower part.
7. The slag cooler with the waste heat recovery function according to claim 1, wherein a plurality of discharging holes are formed in the rear end of the rotary cylinder (4) along the circumference, the discharging cover (13) is arranged outside the discharging holes, and solid slag cooled to a temperature lower than the process requirement temperature falls into the discharging cover (13) through the discharging holes and is discharged from a discharging hole (17) in the lower end of the discharging cover (13).
8. The slag cooler with waste heat recovery function of claim 7, characterized in that the upper part of the discharging cover (13) is provided with an exhaust port (14) for exhausting water vapor or waste gas generated in the cooling process.
9. The slag cooler with waste heat recovery function of claim 7, characterized in that a spray pipe (16) is arranged at the discharge hole (17) of the discharge cover (13), and part of the cooling water is sprayed onto the slag through the spray pipe (16).
10. The slag cooler with the waste heat recovery function according to claim 1, characterized in that a dynamic and static sealing device (18) is arranged between the rotary cylinder (4) and the front end of the fixed cover (2) and the rear end of the discharging cover (13) to ensure that the cooling process of the fixed slag is performed in a closed space; and a sealing structure (19) is also arranged between the two ends of the spraying jacket (8) and the rotary cylinder (4) to prevent the circulating cooling water from overflowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022678234.5U CN214307160U (en) | 2020-11-18 | 2020-11-18 | Slag cooler with waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022678234.5U CN214307160U (en) | 2020-11-18 | 2020-11-18 | Slag cooler with waste heat recovery function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214307160U true CN214307160U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022678234.5U Active CN214307160U (en) | 2020-11-18 | 2020-11-18 | Slag cooler with waste heat recovery function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214307160U (en) |
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2020
- 2020-11-18 CN CN202022678234.5U patent/CN214307160U/en active Active
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