CN215102891U - Waste heat recycling system for II type anhydrous gypsum powder production line - Google Patents
Waste heat recycling system for II type anhydrous gypsum powder production line Download PDFInfo
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- CN215102891U CN215102891U CN202121174047.1U CN202121174047U CN215102891U CN 215102891 U CN215102891 U CN 215102891U CN 202121174047 U CN202121174047 U CN 202121174047U CN 215102891 U CN215102891 U CN 215102891U
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Abstract
The utility model relates to a II type anhydrous gesso production line waste heat recovery utilizes system relates to the gypsum calcining device field. The utility model adopts the technical proposal that: the hot air inlet pipe of the fluidized bed furnace is connected with a hot air inlet pipe of the fluidized bed furnace, the hot air inlet pipe of the fluidized bed furnace is connected with a hot air outlet of the hot air furnace, and the hot air outlet of the hot air furnace is connected with the hot air inlet pipe of the fluidized bed furnace; a hot air inlet pipe of the drying system is respectively connected with a drying blower and a hot air outlet of a hot air furnace. The utility model discloses the technique carries out reutilization through the produced waste heat to fluidized bed furnace, high temperature calcining kiln. The heat efficiency of the II type anhydrous gypsum production line is improved. The device comprises a hot air pipeline, a high-temperature calcining kiln, a hot air furnace, an air blower and a dryer, wherein one end of the hot air pipeline is arranged to be discharged from a hot air outlet of the high-temperature calcining kiln, the other end of the hot air pipeline is communicated with an air inlet pipeline of the dryer, and the hot air pipeline is provided with a pressure sensor and a temperature sensor.
Description
Technical Field
The utility model relates to a II type anhydrous gesso production line waste heat recovery utilizes system relates to the gypsum calcining device field.
Background
The calcining process of the type II anhydrous gypsum production line comprises two steps, wherein a first step is that a fluidized bed furnace calcines gypsum raw materials, gypsum is dehydrated in the furnace to produce semi-hydrated gypsum, and hot air is directly discharged; and in the second step, the calcining temperature of the high-temperature calcining kiln is controlled, the semi-hydrated gypsum is dehydrated in the rotary kiln to produce the anhydrous gypsum, and the hot air is directly discharged after the semi-hydrated gypsum is calcined in the high-temperature calcining kiln. In both steps, a large amount of waste heat is discharged, and waste heat is wasted in actual production.
At present, in the field of combustion furnaces, the technology of heating natural gas by using waste heat of flue gas and inputting the natural gas into the furnace to improve the combustion temperature is adopted, and if the hot gas generated by the calcining in the fluidized bed furnace and the calcining in the calcining kiln can be effectively utilized, the quantity of consumed fuel of the whole production line can be effectively reduced, and the cost is effectively reduced.
Disclosure of Invention
The utility model aims at providing a II anhydrous gypsum production line hot air recovery system can effectual recycle surplus hot-blast in the production line, avoids the energy extravagant.
In order to achieve the above object, the utility model adopts the following technical scheme:
the waste heat recycling system for the II type anhydrous gypsum powder production line comprises a boiling furnace hot air inlet pipe and a boiling furnace waste heat air pipe, wherein the boiling furnace hot air inlet pipe and the boiling furnace waste heat air pipe are connected with a boiling furnace;
a hot air inlet pipe of the drying system is respectively connected with a drying blower and a hot air outlet of a hot air furnace.
Preferably, the hot air inlet pipe of the drying system is connected with a waste heat air outlet pipe of the high-temperature calcining kiln, the hot air inlet pipe of the high-temperature calcining kiln is communicated with a second hot air furnace, and the second hot air furnace provides high-temperature heat source gas for the high-temperature calcining kiln.
Preferably, the hot blast stove is provided with a natural gas inlet pipe and is filled with natural gas, and the hot blast stove is provided with a natural gas inlet pipe.
Preferably, the hot air inlet pipe of the fluidized bed furnace, the residual heat air pipe of the fluidized bed furnace, the hot air inlet pipe of the drying system and the hot air inlet pipe of the high-temperature calcining kiln are respectively provided with a temperature sensor for detecting the temperature of the hot air in the air pipeline.
Preferably, the hot air inlet pipe of the fluidized bed furnace, the residual heat air pipe of the fluidized bed furnace, the hot air inlet pipe of the drying system and the hot air inlet pipe pipeline of the high-temperature calcining kiln are provided with a pressure sensor and an air volume regulating valve, the pressure sensor is used for detecting the pressure of circulating hot air in the hot air pipeline, and the air volume regulating valve ensures the air volume balance of the whole residual heat circulating system.
Preferably, the hot air inlet pipe of the fluidized bed furnace, the hot air inlet pipe of the drying system and the hot air inlet pipe heat supply pipeline of the high-temperature calcining kiln are respectively provided with a roots blower, and the roots blower improves the air pressure to ensure the gas delivery and pressurization.
The utility model discloses the technique carries out reutilization through the produced waste heat to fluidized bed furnace, high temperature calcining kiln. The heat efficiency of the II type anhydrous gypsum production line is improved. The device comprises a hot air pipeline, a high-temperature calcining kiln, a hot air furnace, a blower and a dryer, wherein one end of the hot air pipeline is arranged to be discharged from a hot air outlet of the high-temperature calcining kiln, the other end of the hot air pipeline is communicated with an air inlet pipeline of the dryer, and the hot air pipeline is provided with a pressure sensor and a temperature sensor; the air outlet pipeline of the hot blast stove is provided with a blower device (a Roots blower) and a centrifugal blower (a high-temperature blower).
Drawings
Figure 1 is a schematic structural view of the present invention,
reference numerals:
1. the system comprises a drying system, 2, a fluidized bed furnace, 3, a first hot blast furnace, 4, a high-temperature return fan, 5, a fluidized bed furnace waste heat air pipe, 6, a blower, 7, a high-temperature calcining kiln waste heat air outlet pipe, 8, a high-temperature calcining kiln, 9, a high-temperature calcining kiln hot air inlet pipe, 10, a second hot blast furnace, 11, a fluidized bed furnace hot air inlet pipe, 12 and a drying system hot air inlet pipe.
Detailed Description
The specific structure of the present invention is further described below:
the utility model II type anhydrous gypsum powder production line waste heat recycling system has the structure shown in figure 1 and figure, and comprises a fluidized bed furnace hot air inlet pipe 11 and a fluidized bed furnace waste heat air pipe 5 which are connected with a fluidized bed furnace 2, wherein the fluidized bed furnace waste heat air pipe 5 is provided with a high temperature return fan 4, the fluidized bed furnace waste heat air pipe 5 is introduced into a mixing air chamber of a hot blast stove, and a hot air outlet of the hot blast stove is connected with the fluidized bed furnace hot air inlet pipe 11; a hot air inlet pipe of the drying system 1 is respectively connected with a drying blower 6 and a hot air outlet of a hot air furnace.
The hot air inlet pipe of the drying system 1 is also connected with a waste heat air outlet pipe 7 of the high-temperature calcining kiln 8, the hot air inlet pipe of the high-temperature calcining kiln 8 is communicated with a second hot air furnace 10, and the second hot air furnace 10 provides high-temperature heat source gas for the high-temperature calcining kiln 8. The hot blast stove is provided with a natural gas inlet pipe and is filled with natural gas, and the hot blast stove is provided with a natural gas inlet pipe.
And a hot air inlet pipe 11 of the fluidized bed furnace, a waste heat air pipe 5 of the fluidized bed furnace, a hot air inlet pipe of the drying system 1 and a hot air inlet pipe of the high-temperature calcining kiln 8 are respectively provided with a temperature sensor for detecting the temperature of hot air in an air pipeline. And a pressure sensor and an air volume regulating valve are arranged on the hot air inlet pipe 11 of the fluidized bed furnace, the waste heat air pipe 5 of the fluidized bed furnace, the hot air inlet pipe of the drying system 1 and the hot air inlet pipe pipeline of the high-temperature calcining kiln 8, the pressure sensor is used for detecting the pressure of circulating hot air in the hot air pipeline, and the air volume regulating valve ensures the air volume balance of the whole waste heat circulating system.
The hot air inlet pipe 11 of the fluidized bed furnace, the hot air inlet pipe of the drying system 1 and the hot air inlet pipe heat supply pipeline of the high-temperature calcining kiln 8 are respectively provided with a roots blower 6, and the roots blower 6 improves the air pressure to ensure the gas delivery and pressurization.
The utility model discloses a waste heat utilization process:
a) the external air enters the first hot blast stove 3 through an air inlet pipeline, meanwhile, natural gas enters the first hot blast stove 3 through a gas pipeline, and the main heat of combustion is used for heating the air and enters the fluidized bed furnace 2 through a hot air pipeline 11 to calcine the gypsum powder;
b) residual high-temperature hot air of the fluidized bed furnace 2 flows into a high-temperature return fan 4 through a residual heat air pipe of the fluidized bed furnace, and flows into a mixed air chamber of a first hot blast furnace 3 through an air outlet end of the high-temperature return fan 4 for secondary heating utilization;
c) the outside air enters the second hot blast stove 10 through the air inlet pipeline, and simultaneously the main heat of the combustion of natural gas entering the second hot blast stove 10 through the gas pipeline is used for heating the air and enters the high-temperature calcining kiln 8 through the high-temperature calcining kiln hot air inlet pipe 9 to calcine the gypsum powder, and the residual high-temperature hot air is gathered into the drying system hot air inlet pipe 12 through the high-temperature calcining kiln waste heat outlet pipe 7.
The utility model discloses the technique realizes the reuse to calcining the waste heat of burning furnace and high temperature rotary kiln through waste heat recovery system, and waste heat recovery system mainly comprises parts such as high temperature backward flow wind, air-blower, hot-blast pipeline, calcines the hot-blast recycle of production workshop section to II type anhydrite through increasing waste heat recovery system and realizes the diversification of heat source, realizes that many heat sources derive from the application on calcining the production line. The utility model discloses the advanced technology, heat source utilization rate are high, use cost and energy resource consumption greatly reduced have extensive market prospect.
Claims (6)
1. A waste heat recycling system of a II-type anhydrous gypsum powder production line is characterized by comprising a boiling furnace hot air inlet pipe (11) and a boiling furnace waste heat air pipe (5) which are connected with a boiling furnace (2), wherein the boiling furnace waste heat air pipe (5) is provided with a high-temperature return fan (4), the boiling furnace waste heat air pipe (5) is introduced into a mixing air chamber of a hot blast stove, and a hot air outlet of the hot blast stove is connected with the boiling furnace hot air inlet pipe (11);
the hot air inlet pipe of the drying system (1) is respectively connected with a drying blower (6) and a hot air outlet of a hot air furnace.
2. The waste heat recycling system of the type II anhydrous gypsum powder production line of claim 1, wherein a hot air inlet pipe of the drying system (1) is further connected to a waste heat outlet pipe (7) of the high temperature calcining kiln (8), the hot air inlet pipe of the high temperature calcining kiln (8) is communicated with a second hot air furnace (10), and the second hot air furnace (10) provides high temperature hot source air for the high temperature calcining kiln (8).
3. The waste heat recycling system of the type II anhydrous gypsum powder production line of claim 1, wherein the hot blast stove is provided with a natural gas inlet pipe and is filled with natural gas, and the hot blast stove is provided with a natural gas inlet pipe.
4. The waste heat recycling system of the type II anhydrous gypsum powder production line of claim 2, wherein the hot air inlet pipe (11) of the fluidized bed furnace, the waste heat air pipe (5) of the fluidized bed furnace, the hot air inlet pipe of the drying system (1) and the hot air inlet pipe of the high temperature calcining kiln (8) are respectively provided with a temperature sensor for detecting the temperature of the hot air in the air duct.
5. The waste heat recycling system of the type II anhydrous gypsum powder production line of claim 2, wherein the hot air inlet pipe (11) of the fluidized bed furnace, the waste heat air pipe (5) of the fluidized bed furnace, the hot air inlet pipe of the drying system (1) and the hot air inlet pipe of the high temperature calcining kiln (8) are provided with a pressure sensor and an air volume regulating valve, the pressure sensor is used for detecting the pressure of circulating hot air in the hot air pipe, and the air volume regulating valve ensures the air volume balance of the whole waste heat circulating system.
6. The waste heat recycling system of the type II anhydrous gypsum powder production line as claimed in claim 2, wherein the hot air inlet pipe (11) of the fluidized bed furnace, the hot air inlet pipe of the drying system (1) and the hot air inlet pipe heat supply pipeline of the high temperature calcining kiln (8) are respectively provided with a Roots blower (6), and the Roots blower (6) increases the air pressure to ensure the gas delivery and pressurization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121174047.1U CN215102891U (en) | 2021-05-28 | 2021-05-28 | Waste heat recycling system for II type anhydrous gypsum powder production line |
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| CN202121174047.1U CN215102891U (en) | 2021-05-28 | 2021-05-28 | Waste heat recycling system for II type anhydrous gypsum powder production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873937A (en) * | 2022-04-20 | 2022-08-09 | 中建材创新科技研究院有限公司 | Powder calcining system, plate drying system and hot air system |
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2021
- 2021-05-28 CN CN202121174047.1U patent/CN215102891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873937A (en) * | 2022-04-20 | 2022-08-09 | 中建材创新科技研究院有限公司 | Powder calcining system, plate drying system and hot air system |
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