CN213956018U - Vertical tunnel kiln heat boiler - Google Patents

Abstract

The utility model discloses a vertical tunnel kiln furnace hot boiler, including steel frame construction supporting platform, the oxygen-eliminating device, the feedwater supply system, the economizer subassembly, the evaporimeter subassembly, the drum, over heater subassembly and water-cooling wall settling chamber, the drum is installed at steel frame construction supporting platform top, the oxygen-eliminating device communicates with the feedwater supply system, the feedwater supply system communicates with the economizer subassembly, the economizer subassembly communicates with the drum, the drum communicates with the evaporimeter subassembly, water-cooling wall settling chamber through decline nest of tubes, rise nest of tubes respectively, the drum communicates with the over heater subassembly, over heater subassembly outer connection has outside steam conduit; the water wall settling chamber, the superheater assembly, the evaporator assembly and the economizer assembly are sequentially connected through a flue, and a flue gas outlet of the economizer assembly is connected with a flue gas treatment device. The utility model has the advantages of simple overall structure, rationally distributed, can retrieve the heat in the high temperature flue gas high-efficiently, have efficient, the steam production volume is big, the steam production parameter is high, unit cost is low.

Description

Vertical tunnel kiln heat boiler

Technical Field

The utility model relates to a tunnel kiln sintering brickmaking waste heat recovery field especially relates to a vertical tunnel kiln heat boiler.

Background

With the improvement of the technical level of the sintering brick making industry, the tunnel kiln sintering brick making is a main sintering brick making mode in China. A large amount of high-temperature flue gas can be discharged in the production process, the direct discharge can cause pollution to the environment, and secondary resource waste is realized from the resource perspective. The ecological civilization construction planning in the current stage of China provides comprehensive promotion of resource saving and utilization and resource recycling, and green development, cyclic development and low-carbon development are greatly promoted. The tunnel kiln sintering brick making is an energy consumption industry, and the secondary energy recycling is emphasized, but the prior art has low effective utilization rate of high-temperature flue gas, small steam production, low parameters and high unit cost, and cannot be popularized and applied in the tunnel kiln sintering brick making industry. Therefore, a waste heat boiler which has high efficiency, large steam production quantity, high steam production parameters and low unit cost and can be popularized and applied is urgently needed.

SUMMERY OF THE UTILITY MODEL

Weak point to prior art exists, the utility model aims to provide a vertical tunnel kiln heat boiler can retrieve the heat in the high temperature flue gas high-efficiently, and output steam can be used to supply drive power equipment, electricity generation or heating simultaneously, so has reduced the manufacturing cost of enterprise, has improved the benefit of enterprise, has advantages such as efficient, the steam production is big, the steam production parameter is high, unit cost is low.

The purpose of the utility model is realized through the following technical scheme:

a vertical tunnel kiln thermal boiler comprises a steel frame structure supporting platform, a deaerator, a water supply system, a coal economizer assembly, an evaporator assembly, a drum, a superheater assembly and a water wall settling chamber, wherein the top of the steel frame structure supporting platform is provided with the drum, the deaerator, the water supply system, the coal economizer assembly, the evaporator assembly, the drum, the superheater assembly and the water wall settling chamber are arranged on the steel frame structure supporting platform, the deaerator is connected with a water supplementing pipe and a heating steam pipe, the deaerator is communicated with the water supply system through a water inlet pipe of a water supply pump, the water supply system is communicated with the coal economizer assembly through a water supply pipeline, the coal economizer assembly is communicated with the drum through a hot water pipe, the drum is respectively communicated with the evaporator assembly and the water wall settling chamber through a descending pipe group, the evaporator assembly and the water wall settling chamber are communicated with the drum through an ascending pipe group, boiler water circulation is realized between the evaporator assembly and the boiler barrel through the ascending tube group and the descending tube group, and boiler water circulation is realized between the water-cooled wall settling chamber and the boiler barrel through the ascending tube group and the descending tube group; the boiler barrel is communicated with the superheater assembly through a saturated steam pipe, and an external steam pipeline is connected outside the superheater assembly; the water-cooled wall settling chamber is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet of the water-cooled wall settling chamber is connected with a flue gas channel, the flue gas outlet of the water-cooled wall settling chamber is communicated with the flue gas inlet of the superheater assembly through a flue, the flue gas outlet of the superheater assembly is communicated with the flue gas inlet of the evaporator assembly through a flue, the flue gas outlet of the evaporator assembly is communicated with the flue gas inlet of the economizer assembly through a flue, and the flue gas outlet of the economizer assembly is connected with a flue gas treatment device.

In order to better realize the utility model discloses, water supply system includes a plurality of water-feeding pump, water-feeding pump is intake and is held and pass through water-feeding pump inlet tube intercommunication with the oxygen-eliminating device, water-feeding pump water outlet end passes through the pipeline intercommunication with the economizer subassembly.

The further technical scheme is as follows: the economizer assembly comprises a primary economizer and a secondary economizer, the water outlet end of the water feed pump is communicated with the water inlet end of the primary economizer through a water feed pipeline, the water outlet end of the primary economizer is communicated with the water inlet end of the secondary economizer through an economizer connecting pipe, and the water outlet end of the secondary economizer is communicated with the boiler barrel through a hot water pipe.

Preferably, the evaporator assembly comprises a first-stage evaporator, a second-stage evaporator and a third-stage evaporator, the outlet end of the first-stage evaporator, the outlet end of the second-stage evaporator and the outlet end of the third-stage evaporator are communicated with the boiler barrel through ascending pipe groups, and the water inlet end of the first-stage evaporator, the water inlet end of the second-stage evaporator and the water inlet end of the third-stage evaporator are communicated with the boiler barrel through descending pipe groups.

Preferably, the superheater assembly comprises a low-temperature superheater and a high-temperature superheater, the steam inlet end of the low-temperature superheater is communicated with the steam outlet end of the drum through a saturated steam pipe, the steam outlet end of the low-temperature superheater is communicated with the steam inlet end of the high-temperature superheater through a superheated steam connecting pipe, the steam outlet end of the high-temperature superheater is connected with a superheater outlet header, and the external steam pipeline is connected and arranged on the superheater outlet header.

Preferably, a flue gas outlet of the water-cooled wall settling chamber is communicated with a flue gas inlet of a high-temperature superheater, a flue gas outlet of the high-temperature superheater is communicated with a flue gas inlet of a low-temperature superheater, a flue gas outlet of the low-temperature superheater is communicated with a flue gas inlet of a tertiary evaporator through a flue, a flue gas outlet of the tertiary evaporator is communicated with a flue gas inlet of a secondary evaporator through a flue, and a flue gas outlet of the secondary evaporator is communicated with a flue gas inlet of a primary evaporator through a flue; the flue gas outlet of the primary evaporator is communicated with the flue gas inlet of the secondary economizer through a flue, the flue gas outlet of the secondary economizer is communicated with the flue gas inlet of the primary economizer through a flue, and the flue gas treatment device is arranged at the flue gas outlet of the primary economizer.

Preferably, the boiler barrel is correspondingly provided with a two-color water level gauge, an electric contact water level gauge and a balance container water level gauge, and the boiler barrel is also correspondingly provided with a remote pressure gauge, a pressure gauge, an overpressure steam exhaust port and a safety valve.

Preferably, a temperature detector, a pressure detector and a flowmeter are arranged at the steam outlet end of the high-temperature superheater; and a desuperheater is arranged on the superheated steam connecting pipe.

Preferably, an electric gate valve is installed on the water inlet pipe of the water supply pump, and an electric regulating valve is installed on the water supply pipeline.

Preferably, a temperature detector is correspondingly arranged on the deaerator; the water-cooled wall settling chamber adopts a membrane type structure, the primary economizer, the secondary economizer, the primary evaporator, the secondary evaporator and the tertiary evaporator all adopt a serpentine fin tube box type structure, and the low-temperature superheater and the high-temperature superheater all adopt a serpentine light tube box type structure.

Compared with the prior art, the utility model, have following advantage and beneficial effect:

(1) the utility model has the advantages of simple overall structure, rationally distributed, can retrieve the heat in the high temperature flue gas high-efficiently, output steam can be used for supplying drive power equipment, electricity generation or heating simultaneously, so reduced the manufacturing cost of enterprise, improved the benefit of enterprise, have efficient, produce that vapour volume is big, produce vapour parameter height, unit cost low grade advantage.

(2) The utility model discloses set up the water-cooling wall settling chamber in flue gas import position department, can effectually subside the ash in the flue gas, avoid boiler heat transfer area deposition ash, guarantee the operation of boiler high efficiency. The utility model discloses each evaporimeter all adopts fin helical tube structure, and heat exchange efficiency is high, can wholly improve the efficiency of boiler.

(3) The utility model discloses be provided with the oxygen-eliminating device, can get rid of the dissolved oxygen of aquatic in the boiler barrel effectively, protect the operation of equipment better, improve the life of equipment.

(4) The utility model discloses be provided with the double-colored fluviograph of being convenient for observe boiler drum water level on the spot on the boiler drum both ends, can realize the contrast of water level on the spot, realize simultaneously on the spot with the water level contrast of teletransmission water and electricity contact fluviograph and balanced container fluviograph, the false water level appears when avoiding monitoring boiler drum water level, influences boiler safe operation. The utility model discloses still be provided with the manometer on the spot and be used for observing on the spot on the boiler section of thick bamboo, set up the change that teletransmission pressure is used for real-time supervision boiler section of thick bamboo pressure simultaneously.

(5) The utility model discloses set up the relief valve on the drum for the protection drum can not surpass the settlement pressure, and the relief valve is automatic when drum pressure surpasss the settlement pressure and opens the pressure that outside steam extraction reduced the drum, plays the effect of protection boiler, guarantees the safe operation of boiler simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural sectional view in the left-hand direction of FIG. 1;

FIG. 3 is a structural sectional view in the right direction of FIG. 1;

fig. 4 is a schematic structural view in a top view of fig. 1.

Wherein, the names corresponding to the reference numbers in the drawings are:

1-deaerator, 2-water feed pump water inlet pipe, 3-electric gate valve, 4-water feed pump, 5-electric regulating valve, 6-water feed pipeline, 7-primary economizer, 8-economizer connecting pipe, 9-secondary economizer, 10-hot water pipe, 11-boiler barrel, 12-descending pipe group, 13-primary evaporator, 14-secondary evaporator, 15-tertiary evaporator, 16-water wall settling chamber, 17-ascending pipe group, 16-water wall settling chamber, 18-saturated steam pipe, 19-low temperature superheater, 20-superheated steam connecting pipe, 21-desuperheater, 22-high temperature superheater, 23-superheater outlet header, 24-bicolor water level gauge, 25-electric contact water level gauge, 26-balance container water level gauge, 27-remote pressure, 28-pressure gauge, 29-overpressure steam discharge port, 30-safety valve, 31-flue gas channel, 32-steel frame structure support platform.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

examples

As shown in figures 1-4, a vertical tunnel kiln heat boiler comprises a steel frame structure supporting platform 32, a deaerator 1, a water supply system, an economizer assembly, an evaporator assembly, a boiler barrel 11, a superheater assembly and a water wall settling chamber 16, wherein the boiler barrel 11 is installed at the top of the steel frame structure supporting platform 32, the deaerator 1, the water supply system, the economizer assembly, the evaporator assembly, the boiler barrel 11, the superheater assembly and the water wall settling chamber 16 are installed on the steel frame structure supporting platform 32, and the amount of boiler inlet flue gas generated in the tunnel kiln production process is 60000Nm³The temperature of the flue gas is 850 ℃ and the outlet temperature is 175 ℃ for example. The deaerator 1 is connected with a water supplementing pipe and a heating steam pipe, the deaerator 1 of the embodiment is communicated with the boiler barrel 11 (when in use, water supplementing operation can be carried out through the water supplementing pipe), and the deaerator 1 is correspondingly provided with a temperature detector; the temperature that general water source got into in the oxygen-eliminating device 1 all is about 25 ℃, in order to improve the heating effect and the efficiency of follow-up structure to water, through heating steam with water heating to 104 ℃ after (heating steam is through the input of heating steam pipe, the temperature detector on the oxygen-eliminating device 1 can realize the accuracy of 1 inside temperature in the oxygen-eliminating device) will carry out the deoxidization to the water or the steam that get into oxygen-eliminating device 1 and handle to better each equipment of protection and pipeline.

As shown in fig. 1, a deaerator 1 is communicated with a feed water supply system through a feed water pump inlet pipe 2, the feed water supply system is communicated with an economizer assembly through a feed water pipe 6, the economizer assembly is communicated with a drum 11 through a hot water pipe 10, the drum 11 is respectively communicated with an evaporator assembly and a water-cooled wall settling chamber 16 through a descending pipe group 12, the evaporator assembly and the water-cooled wall settling chamber 16 are communicated with the drum 11 through an ascending pipe group 17, furnace water circulation is realized between the evaporator assembly and the drum 11 through the ascending pipe group 17 and the descending pipe group 12, and furnace water circulation is realized between the water-cooled wall settling chamber 16 and the drum 11 through the ascending pipe group 17 and the descending pipe group 12; in the present embodiment, the boiler drum 11, the downcomer 12, the first-stage evaporator 13, the second-stage evaporator 14, the third-stage evaporator 15, the water wall settling chamber 16, and the riser group 17 form a natural circulation of the furnace water under the action of a pressure difference (of course, the water circulation may be enhanced by auxiliary power). The drum 11 is communicated with a superheater assembly through a saturated steam pipe 18, and an external steam pipeline is connected outside the superheater assembly. The water-cooled wall settling chamber 16 is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet of the water-cooled wall settling chamber 16 is connected with a flue gas channel 31, the flue gas outlet of the water-cooled wall settling chamber 16 is communicated with the flue gas inlet of the superheater assembly through a flue, the flue gas outlet of the superheater assembly is communicated with the flue gas inlet of the evaporator assembly through a flue, the flue gas outlet of the evaporator assembly is communicated with the flue gas inlet of the economizer assembly through a flue, and the flue gas outlet of the economizer assembly is connected with a flue gas treatment device. The utility model discloses correspond on the preferred boiler barrel 11 and be equipped with double-colored fluviograph 24, electric contact fluviograph 25, balanced container fluviograph 26, can accurately know the water level condition and communicate the transmission water level condition to control end through above-mentioned fluviograph. Still correspond on the boiler barrel 11 and be equipped with teletransmission pressure 27, manometer 28, superpressure steam extraction mouth 29 and relief valve 30, can accurately know the internal pressure condition and the communication transmission pressure condition to the control end through teletransmission pressure 27, manometer 28, the utility model discloses a teletransmission pressure includes pressure transmitter, transmission line, display instrument. The overpressure exhaust port 29 can realize pressure exhaust or pressure relief treatment under the condition of overpressure of the boiler barrel 11.

As shown in figure 1, the water supply system comprises a plurality of water supply pumps 4, the water inlet ends of the water supply pumps 4 are communicated with the deaerator 1 through water inlet pipes 2 of the water supply pumps, and the water outlet ends of the water supply pumps 4 are communicated with the economizer assembly through pipelines. The economizer assembly comprises a primary economizer 7 and a secondary economizer 9, the water outlet end of the water supply pump 4 is communicated with the water inlet end of the primary economizer 7 through a water supply pipeline 6, the water outlet end of the primary economizer 7 is communicated with the water inlet end of the secondary economizer 9 through an economizer connecting pipe 8, and the water outlet end of the secondary economizer 9 is communicated with the boiler barrel 11 through a hot water pipe 10. The installation is equipped with electric gate valve 3 on the feed pump inlet tube 2, can control the switch and the flow control of feed pump inlet tube 2 through electric gate valve 3, and the installation is equipped with electrical control valve 5 on the water supply line 6, can carry out the switch and the flow control of water supply line 6 through electrical control valve 5.

The utility model discloses an evaporator assembly includes one-level evaporator 13, second grade evaporator 14 and tertiary evaporator 15, and 13 exit ends of one-level evaporator, 14 exit ends of second grade evaporator and 15 exit ends of tertiary evaporator all communicate with boiler barrel 11 through rising pipe group 17, and one-level evaporator 13 is intake end, 14 end and the tertiary evaporator 15 is intake and is held and all communicate with boiler barrel 11 through descending pipe group 12. The superheater assembly comprises a low-temperature superheater 19 and a high-temperature superheater 22, the steam inlet end of the low-temperature superheater 19 is communicated with the steam outlet end of the boiler barrel 11 through a saturated steam pipe 18, the steam outlet end of the low-temperature superheater 19 is communicated with the steam inlet end of the high-temperature superheater 22 through a superheated steam connecting pipe 20, and a desuperheater 21 is arranged on the superheated steam connecting pipe 20. The steam outlet end of the high-temperature superheater 22 is connected with a superheater outlet header 23, and an external steam pipeline is connected and arranged on the superheater outlet header 23. The steam outlet end of the high-temperature superheater 22 is provided with a temperature detector, a pressure detector and a flowmeter, and the steam outlet end of the high-temperature superheater 22 (generally, superheated steam with parameters of 22T/h, 5.5MPa, 485 ℃ and below) in this embodiment can detect the temperature, the pressure and the like of the superheated steam. The utility model discloses 23 exhaust superheated steam of hot export collection case can be used to supply drive power equipment, electricity generation or heating, so reduced the manufacturing cost of enterprise, improved the benefit of enterprise.

The utility model discloses a water-cooling wall settling chamber 16's exhanst gas outlet is linked together through flue and high temperature over heater 22's flue gas inlet, high temperature over heater 22's exhanst gas outlet is linked together through flue and low temperature over heater 19's exhanst gas inlet, low temperature over heater 19's exhanst gas outlet is linked together through flue and tertiary evaporator 15's exhanst gas inlet, tertiary evaporator 15's exhanst gas outlet is linked together through flue and secondary evaporator 14's exhanst gas inlet, secondary evaporator 14's exhanst gas outlet is linked together through flue and primary evaporator 13's exhanst. The flue gas outlet of the primary evaporator 13 is communicated with the flue gas inlet of the secondary economizer 9 through a flue, the flue gas outlet of the secondary economizer 9 is communicated with the flue gas inlet of the primary economizer 7 through a flue, and the flue gas treatment device is arranged at the flue gas outlet of the primary economizer 7.

The water wall settling chamber 16 adopts a membrane type structure, the primary economizer 7, the secondary economizer 9, the primary evaporator 13, the secondary evaporator 14 and the tertiary evaporator 15 all adopt a serpentine fin tube box type structure, and the low-temperature superheater 19 and the high-temperature superheater 22 all adopt a serpentine light tube box type structure. The utility model discloses the overall arrangement form is the shape of falling U, as shown in fig. 1, fig. 4, the one-level economizer 7, economizer connecting pipe 8, one-level evaporimeter 13, the second grade evaporimeter 14 of this embodiment set up in one side of steel frame construction supporting platform 32 from supreme distribution down, and tertiary evaporimeter 15, low temperature over heater 19, high temperature over heater 22, the water-cooling wall deposit room 16 of this embodiment set up in the opposite side of steel frame construction supporting platform 32 from last to distributing down.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A vertical tunnel kiln heat boiler is characterized in that: the water supply system comprises a steel frame structure supporting platform (32), a deaerator (1), a water supply system, a coal economizer assembly, an evaporator assembly, a boiler barrel (11), a superheater assembly and a water-cooled wall settling chamber (16), wherein the boiler barrel (11) is installed at the top of the steel frame structure supporting platform (32), the deaerator (1), the water supply system, the coal economizer assembly, the evaporator assembly, the boiler barrel (11), the superheater assembly and the water-cooled wall settling chamber (16) are installed on the steel frame structure supporting platform (32), the deaerator (1) is connected with a water supplementing pipe and a heating steam pipe, the deaerator (1) is communicated with the water supply system through a water feed pump water inlet pipe (2), the water supply system is communicated with the coal economizer assembly through a water feed pipe (6), the coal economizer assembly is communicated with the boiler barrel (11) through a hot water pipe (10), and the boiler barrel (11) is communicated with the evaporator assembly through a descending pipe assembly (12), The water-cooled wall settling chambers (16) are respectively communicated, and the evaporator assembly and the water-cooled wall settling chambers (16) are communicated with the boiler barrel (11) through a riser group (17); the boiler barrel (11) is communicated with a superheater assembly through a saturated steam pipe (18), and an external steam pipeline is connected outside the superheater assembly; the flue gas treatment device is characterized in that the water-cooled wall settling chamber (16) is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet of the water-cooled wall settling chamber (16) is connected with a flue gas channel (31), the flue gas outlet of the water-cooled wall settling chamber (16) is communicated with the flue gas inlet of the superheater assembly through a flue, the flue gas outlet of the superheater assembly is communicated with the flue gas inlet of the evaporator assembly through a flue, the flue gas outlet of the evaporator assembly is communicated with the flue gas inlet of the economizer assembly through a flue, and the flue gas outlet of the economizer assembly is connected with a flue gas treatment device.

2. The vertical tunnel kiln heat boiler according to claim 1, characterized in that: the water supply system comprises a plurality of water supply pumps (4), the water inlet ends of the water supply pumps (4) are communicated with the deaerator (1) through water inlet pipes (2) of the water supply pumps, and the water outlet ends of the water supply pumps (4) are communicated with the economizer assembly through pipelines.

3. The vertical tunnel kiln heat boiler according to claim 2, characterized in that: the economizer assembly comprises a first-stage economizer (7) and a second-stage economizer (9), wherein the water outlet end of the water supply pump (4) is communicated with the water inlet end of the first-stage economizer (7) through a water supply pipeline (6), the water outlet end of the first-stage economizer (7) is communicated with the water inlet end of the second-stage economizer (9) through an economizer connecting pipe (8), and the water outlet end of the second-stage economizer (9) is communicated with the boiler barrel (11) through a hot water pipe (10).

4. A vertical tunnel kiln heat boiler according to claim 3, characterized in that: the evaporator assembly comprises a first-stage evaporator (13), a second-stage evaporator (14) and a third-stage evaporator (15), wherein the outlet end of the first-stage evaporator (13), the outlet end of the second-stage evaporator (14) and the outlet end of the third-stage evaporator (15) are communicated with the boiler barrel (11) through an ascending pipe assembly (17), and the inlet end of the first-stage evaporator (13), the inlet end of the second-stage evaporator (14) and the inlet end of the third-stage evaporator (15) are communicated with the boiler barrel (11) through a descending pipe assembly (12).

5. The vertical tunnel kiln heat boiler according to claim 4, characterized in that: the superheater assembly comprises a low-temperature superheater (19) and a high-temperature superheater (22), the steam inlet end of the low-temperature superheater (19) is communicated with the steam outlet end of the drum (11) through a saturated steam pipe (18), the steam outlet end of the low-temperature superheater (19) is communicated with the steam inlet end of the high-temperature superheater (22) through a superheated steam connecting pipe (20), the steam outlet end of the high-temperature superheater (22) is connected with a superheater outlet header (23), and an external steam pipeline is connected and arranged on the superheater outlet header (23).

6. The vertical tunnel kiln heat boiler according to claim 5, characterized in that: the flue gas outlet of the water wall settling chamber (16) is communicated with the flue gas inlet of a high-temperature superheater (22) through a flue, the flue gas outlet of the high-temperature superheater (22) is communicated with the flue gas inlet of a low-temperature superheater (19) through a flue, the flue gas outlet of the low-temperature superheater (19) is communicated with the flue gas inlet of a third-stage evaporator (15) through a flue, the flue gas outlet of the third-stage evaporator (15) is communicated with the flue gas inlet of a second-stage evaporator (14) through a flue, and the flue gas outlet of the second-stage evaporator (14) is communicated with the flue gas inlet of a first-stage evaporator (13) through a flue; the flue gas outlet of the primary evaporator (13) is communicated with the flue gas inlet of the secondary economizer (9) through a flue, the flue gas outlet of the secondary economizer (9) is communicated with the flue gas inlet of the primary economizer (7) through a flue, and the flue gas treatment device is arranged at the flue gas outlet of the primary economizer (7).

7. The vertical tunnel kiln heat boiler according to claim 1, characterized in that: the boiler is characterized in that a double-color water level gauge (24), an electric contact water level gauge (25) and a balance container water level gauge (26) are correspondingly arranged on the boiler barrel (11), and a remote pressure (27), a pressure gauge (28), an overpressure steam exhaust port (29) and a safety valve (30) are correspondingly arranged on the boiler barrel (11).

8. The vertical tunnel kiln heat boiler according to claim 5 or 6, characterized in that: a temperature detector, a pressure detector and a flowmeter are arranged at the steam outlet end of the high-temperature superheater (22); a desuperheater (21) is arranged on the superheated steam connecting pipe (20).

9. A vertical tunnel kiln heat boiler according to claim 3, characterized in that: the water supply pump is characterized in that an electric gate valve (3) is arranged on the water inlet pipe (2), and an electric regulating valve (5) is arranged on the water supply pipeline (6).

10. The vertical tunnel kiln heat boiler according to claim 5, characterized in that: a temperature detector is correspondingly arranged on the deaerator (1); the water wall settling chamber (16) adopts a membrane type structure, the primary economizer (7), the secondary economizer (9), the primary evaporator (13), the secondary evaporator (14) and the tertiary evaporator (15) all adopt a serpentine finned tube box type structure, and the low-temperature superheater (19) and the high-temperature superheater (22) all adopt a serpentine light tube box type structure.

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