CN211551631U - Overtemperature regulating system of garbage sludge blending incinerator - Google Patents
Overtemperature regulating system of garbage sludge blending incinerator Download PDFInfo
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- CN211551631U CN211551631U CN201922424698.0U CN201922424698U CN211551631U CN 211551631 U CN211551631 U CN 211551631U CN 201922424698 U CN201922424698 U CN 201922424698U CN 211551631 U CN211551631 U CN 211551631U
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Abstract
The utility model relates to the technical field of municipal solid waste and sludge treatment, and discloses an over-temperature regulating system of a waste sludge blending incinerator, which comprises an incinerator, an over-temperature controller, a sludge and garbage mixing and regulating device, a water spraying and cooling device and a temperature sensor; the water spray cooling device comprises a first spray device, a second spray device and a third spray device, the first spray device is arranged on the outer side of the rear arch wall of the incinerator, the second spray device is arranged on the outer side of the wall surface of the incinerator close to the high-temperature superheater, and the third spray device is arranged on the outer side of the water cooled wall of the incinerator; the sludge and garbage mixing and adjusting device is arranged at the feed end of the incinerator, and the sludge and garbage mixing and adjusting device, the first spraying device, the second spraying device, the third spraying device and the temperature sensor are all connected with the over-temperature controller. The beneficial effects are that: through this device can solve the combustion temperature in the furnace chamber that exists among the prior art too high, be unfavorable for burning the problem of burning furnace safety and stability operation.
Description
Technical Field
The utility model relates to an urban domestic waste and sludge treatment technical field, concretely relates to rubbish sludge blending burns burning furnace's super temperature governing system.
Background
With the rapid development of Chinese economy and the improvement of the living standard of urban residents, the generation amount of urban domestic garbage and sludge is increased more and more. The domestic garbage is treated by sanitary landfill and other modes, and the method has the problems of long treatment period, occupation of precious land resources, secondary pollution to the environment and the like. With the increasing maturity of the waste incineration technology, the waste and the sludge are mixed and combusted to serve as a harmless, quantitative-reduction and resource treatment mode, so that the method has good economic benefits and environmental protection benefits, and is increasingly paid more attention by people.
Due to the improvement of the urban living standard, the component components of the urban domestic garbage are greatly changed compared with the designed heat value of the existing garbage incinerator, and the heat value of the garbage entering the incinerator is continuously increased due to the increase of components such as packaging boxes, take-away garbage and the like and far exceeds the designed heat value of the garbage entering the incinerator. Meanwhile, as the classification system of the garbage in China is not completely popularized, and the garbage with different components and different sources is not completely and uniformly mixed, a local high-temperature area is easily formed, the high-temperature corrosion process of a water-cooled wall and a high-temperature superheater of the incinerator is aggravated, the safe and stable operation of the garbage incinerator is not facilitated, and even potential safety hazards are brought.
SUMMERY OF THE UTILITY MODEL
The utility model provides a waste sludge blending burns burning furnace's super temperature governing system to the combustion temperature is too high in the furnace chamber that exists among the solution prior art, is unfavorable for burning furnace safety and stability's problem of operation.
The purpose of the utility model is realized through the following technical scheme: an over-temperature regulating system of a garbage and sludge blending incinerator comprises an incinerator, an over-temperature controller, a sludge and garbage mixing regulating device, a water spraying cooling device and a temperature sensor; the water spray cooling device comprises a first spray device, a second spray device and a third spray device, the first spray device is arranged on the outer side of the rear arch wall of the incinerator, the second spray device is arranged on the outer side of the high-temperature superheater, and the third spray device is arranged on the outer side of the water cooled wall of the incinerator; the temperature sensors are respectively arranged on the inner side of the rear arch wall of the incinerator, the inner side of the water-cooled wall of the incinerator, the high-temperature superheater of the incinerator, the main combustion area of the incinerator and the outlet of the first flue of the incinerator; the sludge garbage mixing and adjusting device is arranged at the feed end of the incinerator, and the sludge garbage mixing and adjusting device, the first spraying device, the second spraying device, the third spraying device and the temperature sensor are all connected with the over-temperature controller.
Further, the first spraying device comprises a first variable-frequency water pump, a first water conveying pipeline, a first water inlet pipe and a first spraying head; the first spray headers face the outer wall surface of the rear arch wall of the incinerator, the first spray headers are communicated with the water outlet ends of the first water conveying pipelines through first water inlet pipes respectively, the water inlet ends of the first water conveying pipelines are connected with the cooling water tank, the first variable frequency water pump is installed on the first water conveying pipelines, and the first variable frequency water pump is connected with the over-temperature controller.
Further, the second spraying device comprises a second variable frequency water pump, a second water delivery pipeline, a second water inlet pipe and a second spraying head; the second spray headers face the outer wall surface of the high-temperature superheater, the second spray headers are connected with the water outlet ends of the second water conveying pipelines through second water inlet pipes respectively, the water inlet ends of the second water conveying pipelines are connected with the cooling water tank, the second variable-frequency water pump is installed on the second water conveying pipelines, and the second variable-frequency water pump is connected with the overtemperature controller.
Further, the third spraying device comprises a third variable-frequency water pump, a third water delivery pipeline, a third water inlet pipe and a third spraying head; the third spray headers face the outer wall surface of the water-cooled wall of the incinerator, the third spray headers are connected with the water outlet ends of the third water conveying pipelines through third water inlet pipes respectively, the water inlet ends of the third water conveying pipelines are connected with the cooling water tank, the third variable frequency water pump is installed on the third water conveying pipelines, and the third variable frequency water pump is connected with the over-temperature controller.
Further, the sludge and garbage mixing and adjusting device comprises a sludge feeding belt, a garbage feeding belt, a hearth feeding belt and a mixing bin; the sludge feeding belt and the garbage feeding belt are communicated with a feeding end of the mixing bin, one end of the hearth feeding belt is communicated with a discharging end of the mixing bin, the other end of the hearth feeding belt is communicated with a feeding port of the incinerator, and the sludge feeding belt, the garbage feeding belt, the hearth feeding belt and the mixing bin are connected with the over-temperature controller.
Further, the device also comprises a fire grate speed adjusting device; the fire grate speed adjusting device comprises a driving motor for driving the fire grate to run, and the driving motor is connected with the over-temperature controller.
Furthermore, the device also comprises a fire grate air supply device; the fire grate air supply device comprises a blower, an air duct and an air deflector; the air guide plate is arranged at the lower part of the fire grate and is provided with a plurality of air outlets facing the fire grate, the air blower is communicated with the air inlets of the air guide plate through an air duct, and the air blower is connected with the over-temperature controller.
Further, the temperature sensor is a thermocouple sensor.
Further, the overtemperature controller is a computer.
Compared with the prior art, the utility model have following advantage:
1. this excess temperature governing system is through setting up mud rubbish mix adjusting device, water spray heat sink and temperature sensor, realized the early warning and the regulation to the too high or too high phenomenon of water-cooling wall temperature of combustion temperature in the furnace chamber, under the condition of the whole combustion process of the fuel that does not change furnace chamber notably, with main combustion area temperature, water-cooling wall temperature and high temperature over heater temperature control in safe range, and then prolong the life of water-cooling wall and high temperature over heater, realize the stable safe operation of waste incinerator.
2. The overtemperature regulating system controls the combustion temperature of the main combustion area by increasing the mixing proportion of sludge and simultaneously reducing the incoming material speed; the wall surface which is easy to generate high-temperature corrosion and the high-temperature superheater are sprayed with water to reduce the temperature, so that the high-temperature corrosion is prevented; the integral regulation of the combustion temperature of the main combustion area is realized by adjusting the air supply quantity at the bottom of the fire grate and the power of a water-cooled wall water pump. Under the conditions of not changing air distribution, not stopping the machine and not obviously adjusting the whole operation condition of the hearth, the heat exchanger and the combustion overtemperature protection adjustment are realized, and meanwhile, the device has stronger adaptability to different loads, and has the advantages of simple and safe operation, quick adjustment response, good economic benefit, strong adaptability and the like. The local overtemperature early warning and adjustment of the high-temperature superheater are realized, the maintenance cost is reduced, and the safe and stable operation time is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural view of an over-temperature regulation system of a refuse sludge blending incinerator according to the present invention;
fig. 2 shows a schematic view of a temperature sensor distribution according to the present invention;
fig. 3 shows a schematic distribution of water inlet pipes according to the invention;
in the figure, 1 is an incinerator; 2 is an overtemperature controller; 3 is a main combustion zone; 4 is a first spraying device; 5 is a second spraying device; 6 is a third spraying device; 7 is a rear arch wall; 8 is a high-temperature superheater; 9 is a water-cooled wall; 10 is a sludge feeding belt; 11 is a garbage feeding belt; 12 is a hearth feeding belt; 13 is a mixing bin; 14 is a blower; 15 is a first flue outlet; 16 is a variable frequency water pump; a is near combustion zone side; b is far away from the combustion zone side; the double arrows in the figure are circulating cooling water.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The overtemperature regulating system of the garbage sludge blending incinerator shown in figure 1 comprises an incinerator 1, an overtemperature controller 2, a sludge and garbage mixing regulating device, a water spraying cooling device and a temperature sensor; the water spray cooling device comprises a first spray device 4, a second spray device 5 and a third spray device 6, wherein the first spray device 4 is arranged on the outer side of a rear arch wall 7 of the incinerator, the second spray device 5 is arranged on the outer side of a high-temperature superheater 8 of the incinerator 1, and the third spray device 6 is arranged on the outer side of a water cooled wall 9 of the incinerator; the temperature sensors are respectively arranged on the inner side of the rear arch wall 7 of the incinerator, the inner side of the water-cooled wall 9 of the incinerator, the high-temperature superheater 8 of the incinerator, the main combustion area 3 of the incinerator and the first flue outlet 15 of the incinerator; the sludge garbage mixing and adjusting device is arranged at the feed end of the incinerator 1, and the sludge garbage mixing and adjusting device, the first spraying device 4, the second spraying device 5, the third spraying device 6 and the temperature sensor are all connected with the over-temperature controller 2. Realize early warning and regulation to the phenomenon of burning the excessive temperature or the water-cooled wall 9 high temperature in burning furnace 1 thorax through this super temperature governing system, under the condition that does not change furnace's whole combustion process notably, with the temperature of main combustion area 3, the temperature of water-cooled wall 9 and the temperature control of high temperature over heater 8 in the safety range, and then prolong water-cooled wall heat-transfer surface and high temperature over heater 8's life, realize the stable safe operation of waste incinerator.
The first spraying device 4 comprises a first variable-frequency water pump, a first water conveying pipeline, a first water inlet pipe and a first spraying head; the first spray headers face the outer wall surface of the rear arch wall of the incinerator, the first spray headers are communicated with the water outlet ends of the first water conveying pipelines through first water inlet pipes respectively, the water inlet ends of the first water conveying pipelines are connected with the cooling water tank, the first variable frequency water pump is installed on the first water conveying pipelines, and the first variable frequency water pump is connected with the over-temperature controller. The second spraying device 5 comprises a second variable-frequency water pump, a second water conveying pipeline, a second water inlet pipe and a second spraying head; the second spray headers face the outer wall surface of the high-temperature superheater, the second spray headers are connected with the water outlet ends of the second water conveying pipelines through second water inlet pipes respectively, the water inlet ends of the second water conveying pipelines are connected with the cooling water tank, the second variable-frequency water pump is installed on the second water conveying pipelines, and the second variable-frequency water pump is connected with the overtemperature controller.
Because the dry section and the burn-out section of municipal solid waste combustion are relatively long, the main combustion area 3 of the incinerator is relatively concentrated, and the furnace wall right above the combustion section is easily corroded by high temperature, so that the spraying device is arranged outside the rear arch wall and the high-temperature superheater 8, and the thermal stress is favorably reduced. At the same time, the water spraying quantity is adjusted by controlling the power of the water pumpThe whole combustion condition of the hearth is adjusted, so that the service life is prolonged. The cooling water used in the second spray device is a weak alkaline solution (such as low-concentration Ca (OH)2Solution) can reduce the radiation of acid gas to the metal on the surface of the high-temperature superheater 8, and effectively prevent the high-temperature corrosion and the acid corrosion of each wall surface. Because of high temperature over heater 8 is located the third level of burning furnace, and high temperature over heater 8 partly sets up in the outside of burning furnace, and second spray set 5 sprays the high temperature over heater who is located burning furnace 1 outside, and the shower water can not get into the main combustion area 3 of burning furnace, does not lead to the fact the influence to the burning of burning furnace 1.
The third spraying device comprises a third variable-frequency water pump, a third water conveying pipeline, a third water inlet pipe and a third spraying head; the third spray headers face the outer wall surface of the water wall 9 of the incinerator 1, the third spray headers are connected with the water outlet ends of the third water conveying pipelines through third water inlet pipes respectively, the water inlet ends of the third water conveying pipelines are connected with the cooling water tank, the third variable frequency water pump is installed on the third water conveying pipelines, and the third variable frequency water pump is connected with the over-temperature controller 2. And aiming at the overtemperature phenomenon possibly occurring at the water-cooled wall, a third spraying device 6 is arranged, and the average temperature of the water-cooled wall is reduced by increasing the power of a third variable frequency water pump. And the overtemperature regulation and protection of the water-cooled wall 9 are realized. During specific implementation, the first spraying device 4, the second spraying device 5 and the third spraying device 6 are further provided with water collecting devices, sprayed water is collected, and the water is recycled to prevent the water from polluting an incineration workshop.
The sludge and garbage mixing and adjusting device comprises a sludge feeding belt 10, a garbage feeding belt 11, a hearth feeding belt 12 and a mixing bin 13; the sludge feeding belt 10 and the garbage feeding belt 11 are communicated with a feeding end of a mixing bin 13, one end of the hearth feeding belt 12 is communicated with a discharging end of the mixing bin 13, the other end of the hearth feeding belt 12 is communicated with a feeding port of the incinerator 1, and the sludge feeding belt 10, the garbage feeding belt 11, the hearth feeding belt 12 and the mixing bin 13 are connected with the over-temperature controller 2. The mixing proportion of the sludge and the garbage is controlled by adjusting the running power of the driving motors of the sludge feeding belt 10 and the garbage feeding belt 11, and the charging amount of the garbage and the sludge is controlled by adjusting the running power of the driving motors of the hearth feeding belt 12. Because the thermal property, the elemental analysis and the heat value of the two fuels of the garbage and the sludge are greatly different, and the heat value of the sludge is usually obviously lower than that of the municipal domestic garbage, the heat value of the mixed fuel can be reduced by increasing the mixing proportion of the sludge, and the temperature reduction and the overtemperature protection of a main combustion area are realized.
The device also comprises a fire grate speed adjusting device; the fire grate speed adjusting device comprises a driving motor for driving the fire grate to run, and the driving motor is connected with the over-temperature controller 2. The running speed of the fire grate is matched with the running speed of the hearth feeding belt so as to adjust the fuel quantity entering the incinerator and further control the combustion temperature in the incinerator.
The device also comprises a fire grate air supply device; the fire grate air supply device comprises a blower 14, an air duct and an air deflector; the air deflector is arranged at the lower part of the fire grate and is provided with a plurality of air outlets facing the fire grate, the air blower 14 is communicated with the air inlets of the air deflector through an air duct, and the air blower 14 is connected with the over-temperature controller 2. The air guide plate is positioned below the fire grate, the air blower 14 is communicated with the air guide plate through an air duct, and the air supply quantity at the lower part of the fire grate is increased to enhance heat exchange so as to protect heat exchange surfaces of the front arch and the rear arch and prevent the temperature from exceeding the standard.
The temperature sensor is a thermocouple sensor with high sensitivity.
The overtemperature controller 2 is a computer, control software is installed in the computer, and the sludge and garbage feeding rate, the garbage and sludge mixing ratio, the spraying amount of the water spraying cooling device and the air supply amount of the lower part of the grate are adjusted through the control software, so that the automatic adjustment of the overtemperature phenomenon of the hearth is realized.
When in specific use:
thermocouple sensors are arranged at a plurality of positions of the overtemperature regulating system in the incinerator 1, and are used for detecting the real-time running condition of the incinerator. The temperature indexes detected by the temperature sensor mainly comprise: rear arch wall temperature T1Wall temperature T of water-cooled wall2High temperature superheater temperature T3Temperature T of main combustion zone4First flue outlet temperature T5。
And spraying devices are arranged on the outer side of the rear arch wall 7, the outer side of the water-cooled wall 9 and the outer side of the high-temperature superheater 8, and a water delivery pipeline sprays cooling water on a superheated surface in a water mist mode through a variable-frequency water pump to realize cooling. When the measured temperature of the temperature monitoring point of the area (namely the data value transmitted to the computer by the thermocouple sensor) exceeds the lower limit T1 of the high-temperature corrosion bearing temperature of the materialmax、T2max、T3maxDuring the process, the overtemperature controller 2 increases the power of the variable frequency water pump, improves the water spraying amount and realizes the forced cooling of the heating surface. When the temperatures of the rear arch wall 7, the water cooling wall 9 and the high-temperature superheater 8 are restored to the standard working condition operation temperature T10、T20、T30In time, the overtemperature controller 2 controls the power and the lift of the water pump to be reduced, and the normal water quantity is recovered. (T1max、T2max、T3max、T10、T20And T30The specific value of (2) is preset in the computer. )
Wherein the cooling water at the high-temperature superheater 8 uses weakly alkaline low-concentration Ca (OH)2The solution reduces the radiation of acid gas to the metal on the surface of the superheater, and can prevent high-temperature corrosion and acid corrosion.
Temperature T of main combustion zone4First flue outlet temperature T5When the temperature is higher than the temperature required by production safety, the overtemperature controller 2 controls the motor power of the sludge feeding belt to increase, the motor power of the garbage feeding belt to decrease, and the fuel calorific value of the incinerator is reduced by increasing the sludge mixing proportion. Meanwhile, the running speed of the fire grate is reduced, and the feeding amount in the furnace is reduced. The power of a blower at the lower part of the fire grate is improved, and the air supply quantity of cooling air is increased, so that the front arch and the rear arch at the lower part of the fire grate are protected from high-temperature corrosion.
When the overtemperature controller 2 monitors the first flue temperature T5Is close to the lower limit T of the national environmental protection standard5min(generally 850 ℃) is adopted, all the spraying devices are automatically closed, simultaneously the sludge feeding amount is reduced, the urban domestic garbage feeding amount is increased, the incoming material heat value is increased, the combustion temperature of the main combustion area is increased, and the minimum limit temperature required by dioxin discharge is ensured.
During daily operation, the water amount of each spraying device is determined based on daily operation experience and thermodynamic balance calculation. Aiming at the high-temperature corrosion characteristics corresponding to the rear arch wall, the water-cooled wall and the high-temperature superheater, spraying devices with different pipe diameters are arranged, as shown in figure 3, the pipe diameter close to the water inlet pipe of the combustion area is larger, and the pipe diameter far away from the water inlet pipe of the combustor is smaller. For example: aiming at the high-temperature superheater, the pipe diameter of the second water inlet pipe close to the hearth side is larger, and the pipe diameter of the second water inlet pipe far away from the hearth side is smaller. Aiming at the rear arch wall, the pipe diameter of the first water inlet pipe in the erosion area right above the bed combustion section is larger, and the pipe diameters of other areas are smaller. The water supply quantity of the cooling water is increased aiming at the part which is most prone to high-temperature corrosion, so that the combustion efficiency can be guaranteed while the high-temperature corrosion of the wall surface is prevented to the greatest extent.
When the overtemperature controller receives an overtemperature alarm, the control strategy is based on the following priority: (1) a high-temperature superheater and a spraying device on the outer side of the rear arch wall; (2) a steam spraying device on the outer side of the water wall; (3) a grate air supply adjusting device; (4) adjusting the mixing proportion of the garbage sludge; (5) the speed of the grate is adjusted. Direct intervention to the combustion process of the hearth can be reduced to the greatest extent based on the strategies, the response speed of the adjusting device is improved, and the overall combustion efficiency of the incinerator is ensured.
The over-temperature adjusting system is used for adjusting the problems of overhigh temperature of a water-cooled wall, a high-temperature superheater and a rear arch wall of the incinerator. Under the conditions of not changing air distribution proportion, not greatly modifying the hearth structure and not stopping the machine, the temperature of the high-temperature heat exchanger and the temperature of the main combustion area of the hearth are ensured not to exceed the temperature limit value. Through simple transformation, the service lives of the water-cooled wall, the high-temperature superheater and the furnace wall surface can be greatly prolonged, the time and frequency of shutdown maintenance are reduced, certain economic value is achieved, and safe and stable operation of the incinerator is facilitated.
The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.
Claims (9)
1. The utility model provides a waste sludge blending burns burning furnace's super temperature governing system which characterized in that: comprises an incinerator, an overtemperature controller, a sludge and garbage mixing and adjusting device, a water spraying and cooling device and a temperature sensor; the water spray cooling device comprises a first spray device, a second spray device and a third spray device, the first spray device is arranged on the outer side of the rear arch wall of the incinerator, the second spray device is arranged on the outer side of the high-temperature superheater, and the third spray device is arranged on the outer side of the water cooled wall of the incinerator; the temperature sensors are respectively arranged on the inner side of the rear arch wall of the incinerator, the inner side of the water-cooled wall of the incinerator, the high-temperature superheater, the main combustion area of the incinerator and the outlet of the first flue of the incinerator; the sludge garbage mixing and adjusting device is arranged at the feed end of the incinerator, and the sludge garbage mixing and adjusting device, the first spraying device, the second spraying device, the third spraying device and the temperature sensor are all connected with the over-temperature controller.
2. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the first spraying device comprises a first variable-frequency water pump, a first water conveying pipeline, a first water inlet pipe and a first spraying head; the first spray headers face the outer wall surface of the rear arch wall of the incinerator, the first spray headers are communicated with the water outlet ends of the first water conveying pipelines through first water inlet pipes respectively, the water inlet ends of the first water conveying pipelines are connected with the cooling water tank, the first variable frequency water pump is installed on the first water conveying pipelines, and the first variable frequency water pump is connected with the over-temperature controller.
3. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the second spraying device comprises a second variable-frequency water pump, a second water conveying pipeline, a second water inlet pipe and a second spraying head; the second spray headers face the outer wall surface of the high-temperature superheater, the second spray headers are connected with the water outlet ends of the second water conveying pipelines through second water inlet pipes respectively, the water inlet ends of the second water conveying pipelines are connected with the cooling water tank, the second variable-frequency water pump is installed on the second water conveying pipelines, and the second variable-frequency water pump is connected with the overtemperature controller.
4. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the third spraying device comprises a third variable-frequency water pump, a third water conveying pipeline, a third water inlet pipe and a third spraying head; the third spray headers face the outer wall surface of the water-cooled wall of the incinerator, the third spray headers are connected with the water outlet ends of the third water conveying pipelines through third water inlet pipes respectively, the water inlet ends of the third water conveying pipelines are connected with the cooling water tank, the third variable frequency water pump is installed on the third water conveying pipelines, and the third variable frequency water pump is connected with the over-temperature controller.
5. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the sludge garbage mixing and adjusting device comprises a sludge feeding belt, a garbage feeding belt, a hearth feeding belt and a mixing bin; the sludge feeding belt and the garbage feeding belt are communicated with a feeding end of the mixing bin, one end of the hearth feeding belt is communicated with a discharging end of the mixing bin, the other end of the hearth feeding belt is communicated with a feeding port of the incinerator, and the sludge feeding belt, the garbage feeding belt, the hearth feeding belt and the mixing bin are connected with the over-temperature controller.
6. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the device also comprises a fire grate speed adjusting device; the fire grate speed adjusting device comprises a driving motor for driving the fire grate to run, and the driving motor is connected with the over-temperature controller.
7. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the device also comprises a fire grate air supply device; the fire grate air supply device comprises a blower, an air duct and an air deflector; the air guide plate is arranged at the lower part of the fire grate and is provided with a plurality of air outlets facing the fire grate, the air blower is communicated with the air inlets of the air guide plate through an air duct, and the air blower is connected with the over-temperature controller.
8. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the temperature sensor is a thermocouple sensor.
9. The excess temperature regulation system of a garbage sludge blending incinerator according to claim 1, characterized in that: the overtemperature controller is a computer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112696707A (en) * | 2020-12-25 | 2021-04-23 | 神华福能发电有限责任公司 | Control method and control device for metal wall temperature of boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112696707A (en) * | 2020-12-25 | 2021-04-23 | 神华福能发电有限责任公司 | Control method and control device for metal wall temperature of boiler |
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