CN217635656U - Rotary kiln hot air drying furnace slag system - Google Patents
Rotary kiln hot air drying furnace slag system Download PDFInfo
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- CN217635656U CN217635656U CN202221224535.3U CN202221224535U CN217635656U CN 217635656 U CN217635656 U CN 217635656U CN 202221224535 U CN202221224535 U CN 202221224535U CN 217635656 U CN217635656 U CN 217635656U
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Abstract
The utility model relates to a rotary kiln hot air drying slag system, which comprises a hot air blower, a kiln wall hot air cylinder, a rotary kiln, a slag conveyor, a crusher and a roller dryer; a heat exchange chamber is formed between the inner wall of the kiln wall hot air cylinder and the outer wall of the rotary kiln; the air outlet of the hot air blower is connected with the air inlet on the kiln wall hot air cylinder through a pipeline, the air outlet on the kiln wall hot air cylinder is connected with the air inlet of the roller dryer through a pipeline, and the air outlet of the roller dryer is communicated with the atmosphere; the slag outlet of the rotary kiln is connected with the inlet of the slag conveyor, the outlet of the slag conveyor is connected with the inlet of the crusher, and the outlet of the crusher is connected with the feed inlet of the roller dryer. The purpose of slag reduction realized by the technical scheme is realized, the uniformity of slag discharge is ensured, the stable operation of an incineration system is promoted, the waste heat of the kiln wall of the rotary kiln is used as a heat source, the energy loss is greatly reduced, and the effect of reducing cost and increasing gain is achieved.
Description
Technical Field
The utility model belongs to the technical field of the waste processing, concretely relates to rotary kiln hot air drying slag system.
Background
Along with the annual increase of hazardous wastes, the number and the amount of the hazardous waste incineration lines are also continuously increased, the quantity of the slag which needs to be buried after treatment is correspondingly increased, the slag which is fished out through a slag conveyor is higher in water content, the increase of leachate during burying is increased, the phenomenon of leakage can also occur in the transferring process, and the drying treatment of the slag is carried out in order to reduce the burden of subsequent burying.
When the slag is dried, if the mode of steam heating or electric heating is directly adopted, the corresponding energy consumption is inevitably greatly increased due to the higher water content in the slag, and in consideration of the factor, other heat sources need to be searched again to supply for a drying system. The temperature of the outer wall of the rotary kiln can reach about 230 ℃ under normal working conditions, the radiant heat within 50cm from the outer side of the kiln wall is high, the temperature also meets related conditions, and the purposes of saving energy and reducing consumption can be achieved by using the heat source of the drying system after heat exchange is carried out on the kiln wall by utilizing hot air.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotary kiln hot air drying slag system to solve the slag phenomenon of dripping, landfill leachate is more, deal with the higher problem of energy consumption.
In order to achieve the purpose, the application is realized by the following technical scheme:
a rotary kiln hot air slag drying system comprises a hot air blower, a kiln wall hot air cylinder, a rotary kiln, a slag conveyor, a crusher and a roller dryer;
the kiln wall hot air cylinder is sleeved outside the rotary kiln, and a heat exchange chamber is formed between the inner wall of the kiln wall hot air cylinder and the outer wall of the rotary kiln;
the air outlet of the hot air blower is connected with the air inlet of the kiln wall hot air cylinder through a pipeline, the air outlet of the kiln wall hot air cylinder is connected with the air inlet of the roller dryer through a pipeline, and the air outlet of the roller dryer is communicated with the atmosphere;
the slag outlet of the rotary kiln is connected with the inlet of the slag conveyor, the outlet of the slag conveyor is connected with the inlet of the crusher, and the outlet of the crusher is connected with the feed inlet of the roller dryer.
Further, the rotary kiln hazardous waste incineration device.
Further, the heat exchange chamber is a double-pipe heat exchanger.
Further, the slag dragging machine is a water-logging type chain plate slag dragging machine.
Further, the crusher is a hammer crusher.
Compared with the prior art, the beneficial effects of this application are:
the purpose of slag reduction realized by the technical scheme is realized, the uniformity of slag discharge is ensured, the stable operation of an incineration system is promoted, the waste heat of the kiln wall of the rotary kiln is used as a heat source, the energy loss is greatly reduced, and the effect of reducing cost and increasing gain is achieved.
Drawings
Fig. 1 is a process flow diagram of the present invention.
1-hot air blower, 2-kiln wall hot air cylinder, 3-rotary kiln, 4-slag conveyor, 5-crusher, 6-drum dryer.
Detailed Description
The following embodiments are merely exemplary, and can only be used for explaining and explaining the technical solutions of the present invention, and cannot be interpreted as limiting the technical solutions of the present invention.
As shown in fig. 1, the application provides a rotary kiln hot air drying slag system, including rotary kiln 3, the rotary kiln of this application is the main device that the hazardous waste burns, is the main provider of the hot air drying slag system of this application, and the rotary kiln of this application is tubular structure, and the outside cover of rotary kiln has kiln wall hot-blast cylinder 2, forms the heat transfer room between the outer wall of kiln wall hot-blast cylinder of this application and rotary kiln, and this heat transfer room is tubular heat exchanger, adopts the compulsory heat transfer form, is the shell side of tubular heat exchanger.
The air outlet of the air heater 1 is connected with the air inlet on the kiln wall hot air cylinder through a pipeline, and the air heater is used for supplying air to the tubular heat exchanger formed by the kiln wall hot air cylinder and providing power for hot air after heat exchange. An air outlet on the kiln wall hot air cylinder is connected with an air inlet of the drum dryer through a pipeline, and an air outlet of the drum dryer is communicated with the atmosphere.
Dangerous waste material produces high temperature and slag after burning through the rotary kiln, and high temperature distributes outside the wall through the rotary kiln outer wall, heats the air through in the tubular heat exchanger, and the slag slides to in the dragveyer 4 from the afterbody of rotary kiln. The slag conveyor is a slag discharging device of slag, and the slag is cooled and dedusted mainly by adopting a water immersion type chain plate slag conveyor.
The slag is lifted into a crusher 5 through a slag conveyor, a hammer crusher is adopted to crush large blocks of slag to be less than 10mm, the crushed slag enters a roller dryer 6 to be dried, and the water content of the slag is reduced from 45% to less than 5% and then is discharged. The heat source of the drum dryer is from the residual heat of the kiln wall of the rotary kiln, and the heat is forcibly exchanged into the kiln wall hot air cylinder through cold air in the kiln wall hot air cylinder by the hot air blower, and then the heat is introduced into the drum dryer for heat exchange and then the heat is discharged into the atmosphere.
The above is the preferred embodiment of the present invention, the above shows and describes the basic principle of the present invention and the advantages of the present invention, and those skilled in the art should understand that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for the description of the principles of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (5)
1. A rotary kiln hot air slag drying system is characterized by comprising a hot air blower, a kiln wall hot air cylinder, a rotary kiln, a slag conveyor, a crusher and a roller dryer;
the kiln wall hot air cylinder is sleeved outside the rotary kiln, and a heat exchange chamber is formed between the inner wall of the kiln wall hot air cylinder and the outer wall of the rotary kiln;
the air outlet of the hot air blower is connected with the air inlet on the kiln wall hot air cylinder through a pipeline, the air outlet on the kiln wall hot air cylinder is connected with the air inlet of the roller dryer through a pipeline, and the air outlet of the roller dryer is communicated with the atmosphere;
the slag outlet of the rotary kiln is connected with the inlet of the slag conveyor, the outlet of the slag conveyor is connected with the inlet of the crusher, and the outlet of the crusher is connected with the feed inlet of the roller dryer.
2. The rotary kiln hot air drying slag system according to claim 1, wherein the rotary kiln hazardous waste incineration device.
3. The rotary kiln hot blast dry slag system as claimed in claim 1, wherein the heat exchange chamber is a double pipe heat exchanger.
4. The rotary kiln hot air slag drying system of claim 1, wherein the slag dragger is a water immersed chain plate slag dragger.
5. The rotary kiln hot blast dry slag system of claim 1, wherein the crusher is a hammer crusher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224535.3U CN217635656U (en) | 2022-05-19 | 2022-05-19 | Rotary kiln hot air drying furnace slag system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221224535.3U CN217635656U (en) | 2022-05-19 | 2022-05-19 | Rotary kiln hot air drying furnace slag system |
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| CN217635656U true CN217635656U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221224535.3U Active CN217635656U (en) | 2022-05-19 | 2022-05-19 | Rotary kiln hot air drying furnace slag system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128519A (en) * | 2023-09-12 | 2023-11-28 | 上海天汉环境资源有限公司 | Dangerous waste rotary kiln slag treatment system and treatment method |
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2022
- 2022-05-19 CN CN202221224535.3U patent/CN217635656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128519A (en) * | 2023-09-12 | 2023-11-28 | 上海天汉环境资源有限公司 | Dangerous waste rotary kiln slag treatment system and treatment method |
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