CN210070633U - Waste heat recovery system in ceramsite production - Google Patents
Waste heat recovery system in ceramsite production Download PDFInfo
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- CN210070633U CN210070633U CN201821932555.XU CN201821932555U CN210070633U CN 210070633 U CN210070633 U CN 210070633U CN 201821932555 U CN201821932555 U CN 201821932555U CN 210070633 U CN210070633 U CN 210070633U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides a waste heat recovery system in haydite production, which comprises a drying machine, rotary kiln and cooler, the drying machine passes through the drying-machine fan and is connected with high-efficient air heat exchanger, be provided with air inlet on the high-efficient air heat exchanger, the air outlet, flue gas air inlet and flue gas outlet, air inlet passes through the connecting pipe and is connected with the heat exchanger fan, the air outlet passes through the connecting pipe and is connected with drying fan, the flue gas air inlet passes through the connecting pipe and is connected with the exhaust port of rotary kiln and cooler respectively, the air inlet of cooler passes through the connecting pipe and is connected with cooling fan, the inside heat exchange tube that is provided with snakelike distribution of high-efficient air heat exchanger, utilize the flue gas waste heat heating clean air of rotary kiln, reuse air after the heating material of drying.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment technique and specifically relates to a waste heat recovery system in haydite production.
Background
In recent years, the utilization of various solid waste resources such as sludge, coal ash and the like is more prone to firing of ceramsite, the ceramsite can thoroughly realize the reduction and harmless treatment of the solid waste, but the smoke components in the firing process of the ceramsite are complex and contain a large amount of harmful substances, the temperature of a large amount of smoke can reach over 1000 ℃, the direct discharge not only causes pollution, but also causes the waste of energy, the heat in the ceramsite can be recycled and used for drying materials, but harmful gases and substances in high-temperature smoke easily cause pollution harm to other materials and cannot be directly used for drying the materials, so that the problem that the waste heat cannot be effectively recycled is the common problem at present, the waste cost of the energy is increased, and the like.
Disclosure of Invention
An object of the utility model is to provide a waste heat recovery system in haydite production utilizes the flue gas waste heat heating clean air of rotary kiln, and the air drying material after the reuse heating has both saved the other heat source of drying material, has reduced rotary kiln flue gas temperature again, through the balanced calculation of thermotechnical technology, selects suitable heat exchanger, can fall the flue gas temperature to below 100, can directly advance flue gas processing system and carry out SOx/NOx control processing, need not independent cooling.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a waste heat recovery system in haydite production, includes drying-machine, rotary kiln and cooler, the drying-machine pass through the drying-machine fan and be connected with high-efficient air heat exchanger, high-efficient air heat exchanger on be provided with air inlet, air outlet, flue gas inlet and flue gas outlet, air inlet pass through the connecting pipe and be connected with the heat exchanger fan, the air outlet pass through the connecting pipe and be connected with drying fan, the flue gas inlet pass through the connecting pipe and be connected with the exhaust port of rotary kiln and cooler respectively, the air inlet of cooler pass through the connecting pipe and be connected with cooling fan, the inside heat exchange tube that is provided with snakelike distribution of high-efficient air heat exchanger.
As optimization, the high-efficiency air heat exchanger is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the box body is internally provided with a heat exchange tube distributed in a snake shape, and two ends of the heat exchange tube are communicated with the air inlet and the air outlet.
As optimization, the high-efficiency air heat exchanger is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the box body is internally provided with a heat exchange tube distributed in a snake shape, and the space between the box body and the heat exchange tube is communicated with the flue gas inlet and the flue gas outlet.
As optimization, one end of the heat exchange fan is connected with the air inlet through a connecting pipe, and the other end of the heat exchange fan is communicated with the outside air through a connecting pipe.
Preferably, one end of the drying fan is communicated with the air outlet through a connecting pipe, and the other end of the drying fan is communicated with the dryer through a connecting pipe.
Preferably, the rotary kiln is provided with a smoke outlet, and the smoke outlet is connected with a smoke inlet through a connecting pipe.
And as optimization, the discharge hole of the dryer is connected with the feed inlet of the rotary kiln.
And as optimization, the discharge hole of the rotary kiln is connected with the feed inlet of the cooler.
The utility model has the advantages that: compared with the prior art, the waste heat recovery system in ceramsite production of the utility model adds the high-efficiency air heat exchanger in the flue gas recovery processing system, heats the high-temperature flue gas discharged by the rotary kiln and the hot gas discharged by the cooler through the high-efficiency air heat exchanger, converts the heat into the air, directly dries the material in the dryer through the high-temperature air discharged by the high-efficiency air heat exchanger, the dried material enters the rotary kiln to be fired, the high-temperature gas generated by each device exchanges heat in the high-efficiency air heat exchanger in the ceramsite production line, heats the low-temperature air, realizes the recovery and cooling of the high-temperature flue gas heat, saves energy and reduces consumption, reduces energy waste, saves production cost, the low-temperature flue gas after heat exchange can directly enter the flue gas processing system to process the flue gas, does not need to be cooled again, the cooling steps are reduced, and the cost is reduced.
Drawings
FIG. 1 is a general structure diagram of the present invention;
FIG. 2 is an enlarged view of the structure of the high-efficiency air heat exchanger of the present invention;
wherein, 1 drying-machine, 2 rotary kilns, 3 cooler, 4 high-efficient heat exchangers, 5 heat exchanger fans, 6 drying-fan, 7 cooling blower, 8 air inlet, 9 air outlet, 10 gas inlet, 11 gas outlet, 12 heat exchange tubes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the embodiment shown in fig. 1, a waste heat recovery system in ceramsite production comprises a dryer 1, a rotary kiln 2 and a cooler 3, wherein the dryer 1 is connected with a high-efficiency air heat exchanger 4 through a dryer fan 6, the high-efficiency air heat exchanger 4 is provided with an air inlet 8, an air outlet 9, a flue gas inlet 10 and a flue gas outlet 11, the air inlet 8 is connected with a heat exchanger fan 5 through a connecting pipe, the air outlet 9 is connected with the dryer fan 6 through a connecting pipe, the flue gas inlet 10 is respectively connected with a smoke exhaust port of the rotary kiln 2 and an exhaust port of the cooler 3 through connecting pipes, the air inlet of the cooler 3 is connected with a cooling fan 7 through a connecting pipe, and a heat exchange pipe 12 distributed in a serpentine shape is arranged inside the high-efficiency air heat exchanger 4.
In the figure 1, the ceramsite can be produced by drying the materials, the drying of the materials is realized by introducing high-temperature dry gas into the air inlet of a dryer, the air inlet of the dryer is connected with a high-efficiency air heat exchanger, low-temperature air is introduced into the heat exchange tubes arranged in the high-efficiency air heat exchanger through a heat exchange fan, the low-temperature air enters the heat exchange tubes distributed in a snake shape, the heat exchange tubes are arranged in a square sealed high-efficiency air heat exchanger box body, the low-temperature air continuously circularly flows in the snake-shaped heat exchange tubes, the other two air vents of the high-efficiency air heat exchanger are flue gas inlets through which high-temperature flue gas enters, the high-temperature hot gas entering the flue gas inlets continuously and circularly flows between the box body and the heat exchange tube, heat in the flue gas is transferred to low-temperature air inside the heat exchange tube, and the low-temperature flue gas is discharged through the flue gas outlet after heat exchange.
The high-efficiency air heat exchanger 4 is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the heat exchange tubes 12 distributed in a snake shape are arranged inside the box body, and two ends of each heat exchange tube 12 are communicated with the air inlet 8 and the air outlet 9.
The high-efficiency air heat exchanger 4 is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the heat exchange tubes 12 distributed in a snake shape are arranged inside the box body, and the space between the box body and the heat exchange tubes is communicated with the flue gas inlet 10 and the flue gas outlet 11.
In the embodiment shown in fig. 2, the high-efficiency air heat exchanger is a square sealed box body, air ports are respectively arranged on four sides of the sealed box body, one group of the air ports is an air inlet and an air outlet, and is air-circulated, the other group of the air ports is a flue gas inlet and a flue gas outlet, and is flue gas-circulated, a plurality of groups of heat exchange tubes are arranged inside the sealed box body, each group of heat exchange tubes is provided with an inlet and an outlet, the inlet is communicated with the air inlet, the outlet is communicated with the air outlet, the group of heat exchange tubes are arranged in a row, the plurality of groups of heat exchange tubes are arranged inside the box body in parallel and at uniform intervals, the heat exchange tubes are of a serpentine structure, air continuously flows in.
One end of the heat exchange fan 5 is connected with the air inlet 8 through a connecting pipe, and the other end of the heat exchange fan is communicated with the outside air through a connecting pipe.
And one end of the drying fan 6 is communicated with the air outlet 9 through a connecting pipe, and the other end of the drying fan is communicated with the dryer 1 through a connecting pipe.
The rotary kiln 2 is provided with a smoke outlet, and the smoke outlet is connected with a smoke inlet 10 through a connecting pipe.
And a discharge hole of the dryer 1 is connected with a feed inlet of the rotary kiln 2.
And the discharge hole of the rotary kiln 2 is connected with the feed inlet of the cooler 3.
Through adding high-efficient air heat exchanger in the system of flue gas recovery processing, heat the air with the high-temperature flue gas of rotary kiln exhaust and cooler exhaust through high-efficient air heat exchanger, give the air with the heat conversion, the high-temperature air that comes out from high-efficient air heat exchanger, directly dry the material in the drying-machine, the material after drying gets into the rotary kiln and fires, through in the haydite production line, the high-temperature gas that every equipment produced carries out the heat transfer in high-efficient air heat exchanger, heat low temperature air, realize the recovery and the cooling of high temperature flue gas heat, energy saving and consumption reduction, reduce energy waste, practice thrift manufacturing cost, low temperature flue gas after the heat transfer can directly get into flue gas processing system and carry out the flue gas processing, need not to cool off again, the cooling step has been reduced, and the cost is reduced.
In another embodiment, each group of heat exchange tubes in the high-efficiency air heat exchanger is provided with a flue gas guide plate which is vertically distributed with the heat exchange tubes, the flue gas guide plates and the heat exchange tubes on each layer are vertically arranged, so that a plane formed by air flowing is vertical to a plane formed by flue gas flowing, the flue gas guide plates improve the flowing stroke of the flue gas in the box body, the heat exchange area between the flue gas and the heat exchange tubes is increased, and the heat exchange efficiency is improved.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a waste heat recovery system in haydite production, includes drying-machine (1), rotary kiln (2) and cooler (3), its characterized in that: dryer (1) be connected with high-efficient air heat exchanger (4) through drying fan (6), high-efficient air heat exchanger (4) on be provided with air inlet (8), air outlet (9), flue gas air inlet (10) and flue gas outlet (11), air inlet (8) be connected with heat exchanger fan (5) through the connecting pipe, air gas outlet (9) be connected with drying fan (6) through the connecting pipe, flue gas air inlet (10) be connected with the exhaust port of discharge fume port and cooler (3) of rotary kiln (2) respectively through the connecting pipe, the air inlet of cooler (3) be connected with cooling fan (7) through the connecting pipe, high-efficient air heat exchanger (4) inside be provided with snakelike heat exchange tube (12) that distribute.
2. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: the high-efficiency air heat exchanger (4) is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the box body is internally provided with a heat exchange tube (12) distributed in a snake shape, and two ends of the heat exchange tube (12) are communicated with an air inlet (8) and an air outlet (9).
3. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: the high-efficiency air heat exchanger (4) is a square sealed box body, different air ports are respectively arranged on four sides of the box body, the box body is internally provided with a heat exchange tube (12) which is distributed in a snake shape, and the space between the box body and the heat exchange tube is communicated with a flue gas inlet (10) and a flue gas outlet (11).
4. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: one end of the heat exchanger fan (5) is connected with the air inlet (8) through a connecting pipe, and the other end of the heat exchanger fan is communicated with the outside air through a connecting pipe.
5. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: one end of the drying fan (6) is communicated with the air outlet (9) through a connecting pipe, and the other end of the drying fan is communicated with the dryer (1) through a connecting pipe.
6. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: the rotary kiln (2) is provided with a smoke outlet, and the smoke outlet is connected with a smoke inlet (10) through a connecting pipe.
7. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: the discharge hole of the dryer (1) is connected with the feed inlet of the rotary kiln (2).
8. The waste heat recovery system in ceramsite production according to claim 1, wherein the waste heat recovery system comprises: the discharge hole of the rotary kiln (2) is connected with the feed inlet of the cooler (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821932555.XU CN210070633U (en) | 2018-11-22 | 2018-11-22 | Waste heat recovery system in ceramsite production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821932555.XU CN210070633U (en) | 2018-11-22 | 2018-11-22 | Waste heat recovery system in ceramsite production |
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| CN210070633U true CN210070633U (en) | 2020-02-14 |
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| CN201821932555.XU Active CN210070633U (en) | 2018-11-22 | 2018-11-22 | Waste heat recovery system in ceramsite production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745136A (en) * | 2021-01-13 | 2021-05-04 | 华中科技大学 | External heating type light sludge ceramsite firing method based on biomass micron fuel |
| CN114370759A (en) * | 2022-01-14 | 2022-04-19 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
| CN114543509A (en) * | 2022-01-13 | 2022-05-27 | 洛阳豫新工程技术股份有限公司 | Rotary furnace control method and system |
-
2018
- 2018-11-22 CN CN201821932555.XU patent/CN210070633U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745136A (en) * | 2021-01-13 | 2021-05-04 | 华中科技大学 | External heating type light sludge ceramsite firing method based on biomass micron fuel |
| CN114543509A (en) * | 2022-01-13 | 2022-05-27 | 洛阳豫新工程技术股份有限公司 | Rotary furnace control method and system |
| CN114543509B (en) * | 2022-01-13 | 2023-11-28 | 洛阳豫新工程技术股份有限公司 | Rotary furnace control method and system |
| CN114370759A (en) * | 2022-01-14 | 2022-04-19 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
| CN114370759B (en) * | 2022-01-14 | 2023-08-25 | 天津水泥工业设计研究院有限公司 | Low-energy-consumption system and process for preparing ceramsite by utilizing solid waste |
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