CN210569203U

CN210569203U - Steam hot air double-coil hot air furnace

Info

Publication number: CN210569203U
Application number: CN201921495437.1U
Authority: CN
Inventors: 李登尧; 周凯
Original assignee: Sichuan Dengyao Machinery Equipment Co ltd
Current assignee: Sichuan Dengyao Machinery Equipment Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-19
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a steam hot air double-coil hot air furnace; in operation, after steam is introduced into a steam inlet device of the steam hot air double-coil hot air furnace, the steam flows through an outer straight coil, an inner conical coil, a lower coiled pipe, an upper coiled pipe and a steam outlet device in sequence, heat from an upper air duct, an upper flue and a hearth is absorbed and then changed into superheated steam, and natural wind is pressed into the steam inlet device by a fan and is changed into hot wind after passing through the upper air duct, the lower air duct and an air outlet device. The biomass fuel is thrown from the feeding steel pipe, uniformly sprinkled on the bridge plate of the biomass furnace for combustion, and the temperature of a hearth formed by the combination of the lower part of the coil assembly, the upper inner cylinder, the upper castable, the furnace door device, the prefabricated pouring material block, the lower castable and the bridge plate of the biomass furnace is high. The thermal efficiency is correspondingly high. When the firewood and coal fuel is thrown in from the furnace door device, the furnace bridge with corresponding size specification is replaced after the biomass furnace bridge plate, the prefabricated casting material block and the two-in-one base plate are taken out in sequence, and meanwhile, the feeding steel pipe is blocked by adopting a heat insulating material.

Description

Steam hot air double-coil hot air furnace

Technical Field

The utility model relates to a hot-blast furnace field, particularly hot-blast double coil pipe hot-blast furnace of steam.

Background

The hot blast stove is a heating device which takes oil and gas as fuel, takes air as a heat carrier, performs forced circulation through a fan, performs heat exchange through a heat exchanger, and generates clean hot air after being filtered by an air filter.

Through the retrieval discovery, patent number CN 201420351584.2's utility model discloses a gas hot-blast furnace, including quick-witted case, combustor and heat exchanger, quick-witted case middle part is the combustion chamber, and open the through-hole that has the mountable combustor of combustion chamber one end, is located the combustion chamber top and is equipped with the heat exchanger, through heat transfer pipeline intercommunication between the export of combustion chamber and the heat exchanger, machine roof end is equipped with hot air exitus, and the heat exchange tube is equipped with the dust absorber with the junction of combustion chamber, and machine case right-hand member is equipped with the pipe of discharging fume, and the pipe top of discharging fume is equipped with the cigarette cap. The utility model has the advantages that: simple structure is compact, through the heat exchanger, has increaseed heat transfer area, has improved the utilization ratio of the energy, does not contain impurity in the exhaust flue gas simultaneously, has protected the environment.

Patent No. CN201020154162.8 the utility model provides a fuel gas indirect heat exchange cylinder type hot blast stove with simple structure, easy maintenance and longer service life, which comprises a cylinder shell with a heat preservation layer and a detachable front end plate and a detachable rear end plate, wherein the cylinder shell is respectively provided with a cold air inlet and a smoke exhaust port; a cylindrical combustion chamber with a combustor is arranged on the front end plate, the cylindrical combustion chamber extends into the cylindrical shell, and a hot air outlet is arranged on the rear end plate; a cylindrical partition is arranged in the cylindrical shell, and divides an air heating zone in the cylindrical shell into a low-temperature heating zone between the cylindrical shell and the cylindrical partition and a high-temperature heating zone between the cylindrical partition and the flame tube shell; and a plurality of groups of U-shaped flue gas heating pipes which are arranged along the outer circumference of the cylindrical partition plate in equal intervals are arranged in the low-temperature heating area, one end of an opening of each U-shaped flue gas heating pipe is communicated with the combustion chamber, and the other end of the opening of each U-shaped flue gas heating pipe in the same direction is communicated with the flue gas exhaust port.

The utility model discloses a gas hot blast stove with patent number CN201520801736.9, which comprises a burner, an electric control and automatic control device, a blower, an outer decorative plate, a combustion chamber, a heat insulation layer, a blower channel, a heat insulation layer and a hot air outlet, the middle part of the hot blast stove is a stove body, a base is arranged below the stove body, the burner is arranged on the left side of the stove body, the burner is connected with the furnace body through a pipeline, the electric control and automatic control device is arranged at the front upper part of the furnace body, the blower is connected above the furnace body, the outer side of the furnace body is wrapped by the outer decorative plate, the combustion chamber is arranged in the furnace body, the heat insulation layer is arranged outside the combustion chamber, the blast channel is arranged outside the heat insulation layer, the heat-insulating layer wraps the outer portion of the air blowing channel, a through hole is formed in the middle of the heat-insulating layer on the right side of the furnace body, and the through hole is the hot air outlet.

At present, the existing steam hot-blast coil hot-blast stove only can adopt the defects of fuel combustion, low steam temperature, high hot-blast temperature, unstable steam temperature and hot-blast temperature and low heat efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above disadvantages, the utility model provides a hot-blast double-coil hot-blast stove of steam. The defects that the existing steam hot-blast coil hot-blast stove only adopts one fuel for combustion, the steam temperature is low, the hot-blast temperature is high, the steam temperature and the hot-blast temperature are unstable, and the heat efficiency is low are overcome.

The utility model discloses a realize like this, construct a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the device comprises a bottom plate, a lower inner cylinder, a lower cylinder A, a lower cylinder B, a lower outer cylinder, an external ash drawing device, a ring A, a triangular plate, an air outlet device, an upper pouring material, an upper inner cylinder, an upper cylinder A, an upper cylinder B, an upper cylinder C, an upper cylinder D, an upper outer cylinder, a steam inlet pipe device, a smoke passing pipe, a ring B, a lifting device, an upper cover device, a circular plate device A, a perforated rib plate A, a circular plate device B, a perforated rib plate B, a ring C, a ring D, a coil combination, a perforated ring, an air inlet device, a notched ring, a furnace door device, a feeding steel pipe, a prefabricated pouring material block, a lower pouring material, a biomass furnace bridge plate, a two-in-one base plate, a ventilating plate, a smoke outlet device, a steam outlet pipe device, a supporting device A, a supporting device B, a steel.

According to the utility model a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the coil assembly is provided with a steam inlet device, an outer straight coil, an inner conical coil, a lower coiled pipe, an upper coiled pipe and a steam outlet device.

According to the utility model a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the bottom plate is arranged below the steam hot air double-coil hot air furnace, the lower inner cylinder, the lower cylinder A and the lower outer cylinder are respectively connected and fixed with the bottom plate and the ventilating plate, the lower cylinder B is connected and fixed with the bottom plate and the circular ring A, the 4 external ash removing devices are arranged on the lower cylinder B and the lower outer cylinder and extend out of the lower outer cylinder and are communicated with the lower flue, the circular ring A is arranged at the lower ends of the lower cylinder A and the lower cylinder B and is connected and fixed, and the triangular plate is arranged below the lower inner cylinder and the ventilating plate and is connected and fixed; the bottom plate, the lower inner cylinder, the lower cylinder A, the lower cylinder B, the lower outer cylinder, the outer ash drawing device and the circular ring A are combined to form a lower air duct and a lower flue which are not communicated with each other. The air outlet device is respectively connected and fixed with the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D and the upper outer cylinder and communicated with the upper air duct, the upper castable is arranged on the lower castable and wraps the outer straight coil pipe and part of the air inlet device, the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D and the upper outer cylinder are all arranged on the ventilating plate and are connected and fixed, the steam inlet pipe device penetrates through the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D and the upper outer cylinder and is connected and fixed and extends out of the upper inner cylinder and the upper outer cylinder, the smoke passing pipe device is arranged between the upper inner cylinder and the upper cylinder A and extends out and is fixed, the smoke passing pipe is arranged in the smoke passing pipe device and is connected and fixed with the smoke pipe device and the upper cylinder B, the circular ring B is arranged between the upper cylinder B and the upper cylinder C, the upper cover device is arranged on the upper cylinder C and is firmly connected by adopting bolts, the circular plate device A is arranged on the upper cylinder A and is firmly connected by adopting bolts, the ribbed plate with holes A is arranged on the circular plate device A and is fixed, the circular plate device B is arranged on the upper inner cylinder and is firmly connected by adopting bolts, the ribbed plate with holes B is arranged on the circular plate device B and is fixed, the ring C is arranged between the upper cylinder C and the upper cylinder D and is fixedly connected, the ring D is arranged between the upper cylinder D and the upper outer cylinder and is fixedly connected, the coil pipe combination is arranged in the upper inner cylinder and is supported by the supporting device A and the supporting device B, the circular ring with holes is also arranged between the upper cylinder D and the upper outer cylinder and is fixedly connected, the air inlet device is arranged on the upper outer cylinder and is firmly welded and communicated with an upper air duct, the circular ring with a gap is also arranged between the upper cylinder D and the upper outer cylinder, and the feeding steel pipe penetrates through the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D and the upper outer cylinder and is fixedly connected with the upper inner cylinder and the upper outer cylinder, the prefabricated casting material block is arranged on a two-in-one base plate and clings to the inner wall of the lower casting material, the lower casting material is arranged on a ventilating plate, a biomass furnace bridge plate is also arranged on the two-in-one base plate, the two-in-one base plate is also arranged on the ventilating plate, the ventilating plate is arranged between the upper part and the lower part of the steam hot air double-coil hot air furnace, the upper part and the lower part are connected into a whole, and an upper air duct, a lower.

According to the utility model a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the air outlet device, the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D, the upper outer cylinder, the steam inlet pipe device, the smoke pipe passing device, the circular ring B, the upper cover device, the circular plate device A, the perforated rib plate A, the circular plate device B, the perforated rib plate B, the circular ring C, the circular ring D, the perforated circular ring, the air inlet device, the circular ring with the notch, the furnace door device, the feeding steel pipe and the ventilating plate are combined to form an upper air duct and an upper flue which are not communicated with each other.

According to the utility model a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the smoke outlet device is fixedly connected with the lower cylinder B and the lower outer cylinder respectively and communicated with the lower flue, the steam outlet pipe device penetrates through the upper inner cylinder, the upper cylinder A, the upper cylinder B, the upper cylinder C, the upper cylinder D and the upper outer cylinder, is fixedly connected and extends out of the upper inner cylinder and the upper outer cylinder, and 6 supporting devices A are arranged on the upper inner cylinder and wrapped by adopting a pouring material to support the inner conical coil pipe; the 3 supporting devices B are also arranged on the upper inner cylinder and wrapped by castable to support the outer straight coil pipe, the steel plate A is arranged between the lower cylinder B and the lower outer cylinder and fixedly connected, the inner ash drawing device is arranged between the lower cylinder A and the lower cylinder B and fixedly connected with the steel plate B, and the steel plate B is arranged between the lower inner cylinder and the lower cylinder A and fixedly connected.

According to the utility model a hot-blast double coil pipe hot-blast furnace of steam, its characterized in that: the steam inlet device of the coil combination penetrates through the steam inlet pipe device to be firmly connected with the outer straight coil, the outer straight coil is firmly connected with the inner conical coil, the inner conical coil is firmly connected with the lower coiled pipe, the lower coiled pipe is firmly connected with the upper coiled pipe, the upper coiled pipe is firmly connected with the steam outlet device, and the steam outlet device penetrates through the steam outlet pipe device.

The utility model has the advantages of as follows: the utility model provides a hot-blast double coil pipe hot-blast furnace of steam here. In operation, after steam is introduced into the steam inlet device of the steam hot air double-coil hot air furnace, the steam flows through the outer straight coil, the inner conical coil, the lower coiled pipe, the upper coiled pipe and the steam outlet device in sequence, heat from the upper air duct, the upper flue and the hearth is absorbed and then changed into superheated steam, and natural wind is pressed into the steam inlet device by the fan and changed into hot wind after passing through the upper air duct, the lower air duct and the air outlet device. The temperature of the hot air and the temperature of the steam are more stable. The outer straight coil pipe is wrapped by the castable, so that the outer straight coil pipe is not easily damaged by flame in a hearth. The biomass fuel is thrown from the feeding steel pipe, uniformly sprinkled on the bridge plate of the biomass furnace for combustion, and the temperature of a hearth formed by the combination of the lower part of the coil assembly, the upper inner cylinder, the upper castable, the furnace door device, the prefabricated pouring material block, the lower castable and the bridge plate of the biomass furnace is high. The thermal efficiency is correspondingly high. When the firewood and coal fuel is thrown in from the furnace door device, the furnace bridge with corresponding size specification is replaced after the biomass furnace bridge plate, the prefabricated casting material block and the two-in-one base plate are taken out in sequence, and meanwhile, the feeding steel pipe is blocked by adopting a heat insulating material. The defects that the existing steam hot-blast coil hot-blast stove only adopts one fuel for combustion, the steam temperature is low, the hot-blast temperature is high, the steam temperature and the hot-blast temperature are unstable, and the heat efficiency is low are overcome.

Drawings

FIG. 1 is a schematic view of the overall structure of the patent;

fig. 2 is a schematic top view of the patent.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings 1-2, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a steam hot air double-coil hot air furnace through improvement, as shown in figures 1-2, which can be implemented as follows; comprises a bottom plate 1, a lower inner cylinder 2, a lower cylinder A3, a lower circle B4, a lower outer cylinder 5, an outer ash drawing device 6, a circular ring A7, a triangular plate 8, an air outlet device 9, an upper casting material 10, an upper inner cylinder 11, an upper cylinder A12, an upper cylinder B13, an upper cylinder C14, an upper cylinder D15, an upper outer cylinder 16, a steam inlet pipe device 17, a smoke passing pipe device 18, a smoke passing pipe 19, a circular ring B20, a hoisting device 21, an upper cover device 22, a circular plate device A23, a perforated rib plate A24, a circular plate device B25, a perforated rib plate B26, a circular ring C27, a circular ring D28, a coil pipe combination 29, a perforated circular ring 30, an air inlet device 31, a notched circular ring 32, a furnace door device 33, a feeding steel pipe 34, a prefabricated casting material block 35, a lower casting material 36, a biomass furnace bridge plate 37, two backing plates 38, a ventilating plate 39, a smoke outlet device 40, a steam outlet pipe device 41, a support device A42, a support device A43, a steel, Steel sheet B46.

Wherein, the coil assembly 29 is provided with a steam inlet device 29a, an outer straight coil 29b, an inner conical coil 29c, a lower coiled pipe 29d, an upper coiled pipe 29e and a steam outlet device 29 f.

The bottom plate 1 is arranged below the steam hot air double-coil hot air furnace, the lower inner cylinder 2, the lower circle A3 and the lower outer cylinder 5 are fixedly connected with the bottom plate 1 and the ventilating plate 39 respectively, the lower cylinder B4 is fixedly connected with the bottom plate 1 and the ring A7, the 4 external ash removing devices 6 are arranged on the lower cylinder B4 and the lower outer cylinder 5 and extend out of the lower outer cylinder 5 and are communicated with a lower flue, the ring A7 is arranged at the lower ends of the lower cylinder A3 and the lower cylinder B4 and is fixedly connected, and the triangular plate 8 is arranged below the lower inner cylinder 2 and the ventilating plate 39 and is fixedly connected; the bottom plate 1, the lower inner cylinder 2, the lower cylinder A3, the lower cylinder B4, the lower outer cylinder 5, the outer ash removing device 6 and the circular ring A7 are combined to form a lower air duct and a lower flue which are not communicated with each other. The air outlet device 9 is respectively connected and fixed with the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15 and the upper outer cylinder 16 and communicated with the upper air duct, the upper castable 10 is arranged on the lower castable 36 and wraps the outer straight coil 29B and part of the air inlet device 29a, the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15 and the upper outer cylinder 16 are all arranged on the ventilating board 39 and connected and fixed, the air inlet pipe device 17 penetrates through the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15 and the upper outer cylinder 16 and is connected and fixed and extends out of the upper inner cylinder 11 and the upper outer cylinder 16, the smoke passing pipe device 18 is arranged between the upper inner cylinder 11 and the upper cylinder A12 and extends out and fixed, the smoke passing pipe 19 is arranged in the smoke passing pipe device 18 and connected and fixed with the upper cylinder B13, the ring B20 and the upper cylinder 3985 and connected and fixed, the hoisting device 21 is arranged on the upper outer cylinder 16 and is welded firmly, the upper cover device 22 is arranged on the upper cylinder C14 and is connected firmly by bolts, the circular plate device A23 is arranged on the upper cylinder A12 and is connected firmly by bolts, the ribbed plate with holes A24 is arranged on the circular plate device A23 and is fixed, the circular plate device B25 is arranged on the upper inner cylinder 11 and is connected firmly by bolts, the ribbed plate with holes B26 is arranged on the circular plate device B25 and is fixed, the ring C27 is arranged between the upper cylinder C14 and the upper cylinder D15 and is connected and fixed, the ring D28 is arranged between the upper cylinder D15 and the upper outer cylinder 16 and is connected and fixed, the coil pipe combination 29 is arranged in the upper inner cylinder 11 and is supported by the supporting device A42 and the supporting device B43, the ring with holes 30 is also arranged between the upper cylinder D15 and the upper outer cylinder 16 and is connected and fixed, the air intake device 31 is arranged on the upper outer cylinder 16 and is welded firmly and is communicated with the upper air, The upper outer cylinder 16 is fixedly connected in parallel, the furnace door device 33 is arranged on a ventilating plate 39 and is parallel and level to the lower castable 36 and extends out of the upper outer cylinder 16, the feeding steel pipe 34 penetrates through the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15 and the upper outer cylinder 16 and is fixedly connected in parallel and extends out of the upper inner cylinder 11 and the upper outer cylinder 16, the prefabricated casting material 35 is arranged on a two-in-one backing plate 38 and is tightly attached to the inner wall of the lower casting material 36, the lower casting material 36 is arranged on the ventilating plate 39, a biomass furnace bridge plate 37 is also arranged on the two-in-one backing plate 38, the two-in-one backing plate 38 is also arranged on the ventilating plate 39, the ventilating plate 39 is arranged between the upper part and the lower part of the steam hot air double-coil hot air.

The air outlet device 9, the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15, the upper outer cylinder 16, the steam inlet pipe device 17, the smoke passing pipe device 18, the smoke passing pipe 19, the ring B20, the upper cover device 22, the circular plate device A23, the perforated rib plate A24, the circular plate device B25, the perforated rib plate B26, the ring C27, the ring D28, the perforated ring 30, the air inlet device 31, the notched ring 32, the furnace door device 33, the feeding steel pipe 34 and the ventilating plate 39 are combined to form an upper air duct and an upper flue which are not communicated with each other.

The smoke outlet device 40 is fixedly connected with the lower cylinder B4 and the lower outer cylinder 5 respectively and communicated with the lower flue, the steam outlet pipe device 41 penetrates through the upper inner cylinder 11, the upper cylinder A12, the upper cylinder B13, the upper cylinder C14, the upper cylinder D15 and the upper outer cylinder 16, is fixedly connected and extends out of the upper inner cylinder 11 and the upper

outer cylinder

16, and 6 supporting devices A42 are arranged on the upper inner cylinder 11 and wrapped by pouring materials to support the inner conical coil 29C; 3 supporting devices B43 are also arranged on the upper inner cylinder 11 and wrapped by castable to support the outer straight coil pipe 29B, a steel plate A44 is arranged between the lower cylinder B4 and the lower outer cylinder 5 and is fixedly connected, an inner ash drawing device 45 is arranged between the lower cylinder A3 and the lower cylinder B4 and is fixedly connected with a steel plate B46, and a steel plate B46 is arranged between the lower inner cylinder 2 and the lower cylinder A3 and is fixedly connected.

Wherein, the steam inlet device 29a of the coil assembly 29 passes through the steam inlet pipe device 17 and is firmly connected with the outer straight coil 29b, the outer straight coil 29b is firmly connected with the inner conical coil 29c, the inner conical coil 29c is firmly connected with the lower coiled pipe 29d, the lower coiled pipe 29d is firmly connected with the upper coiled pipe 29e, the upper coiled pipe 29e is firmly connected with the steam outlet device 29f, and the steam outlet device 29f passes through the steam outlet pipe device 41.

After steam is introduced into a steam inlet device 29a of the steam hot air double-coil hot air furnace, the steam flows through an outer straight coil 29b, an inner conical coil 29c, a lower coiled pipe 29d, an upper coiled pipe 29e and a steam outlet device 29f in sequence, heat from an upper air duct, an upper flue and a hearth is absorbed and then changed into superheated steam, and natural wind is pressed into a wind inlet device 31 by a fan and then changed into hot air after passing through an upper air duct, a lower air duct and a wind outlet device 9. The temperature of the hot air and the temperature of the steam are more stable. The outer straight coil 29b is wrapped by the castable 10 and is less prone to being damaged by flames in the hearth. The biomass fuel is thrown from the feeding steel pipe 34 and uniformly sprinkled on the bridge plate 37 of the biomass furnace for combustion, and the temperature of a hearth formed by the combination of the lower part of the coil assembly 29, the upper inner cylinder 11, the upper castable 10, the furnace door device 33, the prefabricated castable block 35, the lower castable 36 and the bridge plate 37 of the biomass furnace is high. The thermal efficiency is correspondingly high. When the firewood and coal fuel is fed from the furnace door device 33, the furnace bridge with corresponding size specification is replaced after the biomass furnace bridge plate 37, the prefabricated casting material block 35 and the two-in-one backing plate 38 are taken out in sequence, and the feeding steel pipe 34 is blocked by adopting a heat insulating material. The defects that the existing steam hot-blast coil hot-blast stove only adopts one fuel for combustion, the steam temperature is low, the hot-blast temperature is high, the steam temperature and the hot-blast temperature are unstable, and the heat efficiency is low are overcome.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a hot-blast double coil pipe hot-blast furnace of steam which characterized in that: comprises a bottom plate (1), a lower inner cylinder (2), a lower cylinder A (3), a lower cylinder B (4), a lower outer cylinder (5), an outer ash drawing device (6), a circular ring A (7), a triangular plate (8), an air outlet device (9), upper castable (10), an upper inner cylinder (11), an upper cylinder A (12), an upper cylinder B (13), an upper cylinder C (14), an upper cylinder D (15), an upper outer cylinder (16), a steam inlet pipe device (17), a smoke passing pipe device (18), a smoke passing pipe (19), a circular ring B (20), a hoisting device (21), an upper cover device (22), a circular plate device A (23), a perforated rib plate A (24), a circular plate device B (25), a perforated rib plate B (26), a circular ring C (27), a circular ring D (28), a coil pipe combination (29), a perforated circular ring (30), an air inlet device (31), a circular ring with a notch (32), a furnace door device (33), The device comprises a feeding steel pipe (34), a prefabricated casting material block (35), a lower casting material (36), a biomass furnace bridge plate (37), a two-in-one base plate (38), a ventilating plate (39), a smoke outlet device (40), a steam outlet pipe device (41), a supporting device A (42), a supporting device B (43), a steel plate A (44), an internal ash drawing device (45) and a steel plate B (46).

2. The steam hot air double coil hot air furnace of claim 1, wherein: the coil assembly (29) is provided with a steam inlet device (29 a), an outer straight coil (29 b), an inner conical coil (29 c), a lower coiled pipe (29 d), an upper coiled pipe (29 e) and a steam outlet device (29 f).

3. The steam hot air double coil hot air furnace of claim 1, wherein: the bottom plate (1) is arranged below the steam hot air double-coil hot air furnace, the lower inner cylinder (2), the lower cylinder A (3) and the lower outer cylinder (5) are fixedly connected with the bottom plate (1) and the ventilating plate (39) respectively, the lower cylinder B (4) is fixedly connected with the bottom plate (1) and the circular ring A (7), 4 external ash drawing devices (6) are arranged on the lower cylinder B (4) and the lower outer cylinder (5) and extend out of the lower outer cylinder (5) and are communicated with the lower flue, the circular ring A (7) is arranged at the lower ends of the lower cylinder A (3) and the lower cylinder B (4) and is fixedly connected, and the triangular plate (8) is arranged below the lower inner cylinder (2) and the ventilating plate (39) and is fixedly connected; the bottom plate (1), the lower inner cylinder (2), the lower cylinder A (3), the lower cylinder B (4), the lower outer cylinder (5), the outer ash drawing device (6) and the circular ring A (7) are combined to form a lower air duct and a lower flue which are not communicated with each other;

the air outlet device (9) is respectively connected and fixed with the upper inner cylinder (11), the upper cylinder A (12), the upper cylinder B (13), the upper cylinder C (14), the upper cylinder D (15) and the upper outer cylinder (16) and communicated with an upper air duct, the upper castable (10) is arranged on the lower castable (36) and wraps the outer straight coil pipe (29B) and part of the steam inlet device (29 a), the upper inner cylinder (11), the upper cylinder A (12), the upper cylinder B (13), the upper cylinder C (14), the upper cylinder D (15) and the upper outer cylinder (16) are arranged on the ventilating plate (39) and connected and fixed, the steam inlet pipe device (17) penetrates through the upper inner cylinder (11), the upper cylinder A (12), the upper cylinder B (13), the upper cylinder C (14), the upper cylinder D (15) and the upper outer cylinder (16), is connected and fixed, the upper inner cylinder (11) and the upper outer cylinder (16) are extended out, and the smoke passing pipe device (18) is arranged on the upper inner cylinder (11), The upper cylinders A (12) are fixedly extended, the smoke passing pipe (19) is arranged in the smoke passing pipe device (18) and is fixedly connected with the smoke pipe device (18) and the upper cylinder B (13), the ring B (20) is arranged between the upper cylinder B (13) and the upper cylinder C (14) and is fixedly connected, the hoisting device (21) is arranged on the upper outer cylinder (16) and is firmly welded, the upper cover device (22) is arranged on the upper cylinder C (14) and is firmly connected by bolts, the circular plate device A (23) is arranged on the upper cylinder A (12) and is firmly connected by bolts, the ribbed plate with holes A (24) is arranged on the circular plate device A (23) and is fixed, the circular plate device B (25) is arranged on the upper inner cylinder (11) and is firmly connected by bolts, the ribbed plate with holes B (26) is arranged on the circular plate device B (25) and is fixed, the ring C (27) is arranged between the upper cylinder C (14) and the upper cylinder D (15) and is fixedly connected, a circular ring D (28) is arranged between the upper cylinder D (15) and the upper outer cylinder (16) and fixedly connected, a coil pipe combination (29) is arranged in the upper inner cylinder (11) and supported by a supporting device A (42) and a supporting device B (43), a circular ring with holes (30) is also arranged between the upper cylinder D (15) and the upper outer cylinder (16) and fixedly connected, an air inlet device (31) is arranged on the upper outer cylinder (16) and firmly welded and communicated with an upper air duct, a circular ring with gaps (32) is also arranged between the upper cylinder D (15) and the upper outer cylinder (16) and fixedly connected, a furnace door device (33) is arranged on a ventilating plate (39) and is flush with a lower pouring material (36) and extends out of the upper outer cylinder (16), a feeding steel pipe (34) penetrates through the upper inner cylinder (11), the upper cylinder A (12), the upper cylinder B (13), the upper cylinder C (14), the upper cylinder D (15) and the upper outer cylinder (16), and the prefabricated casting blocks (35) are arranged on two-in-one backing plates (38) and tightly attached to the inner wall of a lower casting material (36), the lower casting material (36) is arranged on a ventilating plate (39), a biomass furnace bridge plate (37) is also arranged on the two-in-one backing plates (38), the two-in-one backing plates (38) are also arranged on the ventilating plate (39), the ventilating plate (39) is arranged between the upper part and the lower part of the steam hot air double-coil hot air furnace, the upper part and the lower part are connected into a whole, and an upper air duct, a lower air duct and an upper flue and a lower flue are connected and are not communicated with each other.

4. The steam hot air double coil hot air furnace of claim 1, wherein: the device comprises an air outlet device (9), an upper inner cylinder (11), an upper cylinder A (12), an upper cylinder B (13), an upper cylinder C (14), an upper cylinder D (15), an upper outer cylinder (16), a steam inlet pipe device (17), a smoke pipe device (18), a smoke pipe (19), a ring B (20), an upper cover device (22), a circular plate device A (23), a perforated rib plate A (24), a circular plate device B (25), a perforated rib plate B (26), a circular ring C (27), a circular ring D (28), a perforated ring (30), an air inlet device (31), a notched ring (32), a furnace door device (33), a feeding steel pipe (34) and a ventilating plate (39) which are combined to form an upper air duct and an upper flue and are not communicated with each other.

5. The steam hot air double coil hot air furnace of claim 1, wherein: the smoke outlet device (40) is fixedly connected with the lower cylinder B (4) and the lower outer cylinder (5) respectively and communicated with the lower flue, the steam outlet pipe device (41) penetrates through the upper inner cylinder (11), the upper cylinder A (12), the upper cylinder B (13), the upper cylinder C (14), the upper cylinder D (15) and the upper outer cylinder (16) and is fixedly connected with the upper inner cylinder (11) and the upper outer cylinder (16) in a penetrating manner, and 6 supporting devices A (42) are arranged on the upper inner cylinder (11) and wrapped by adopting a pouring material to support the inner conical coil (29C); 3 supporting devices B (43) are also arranged on the upper inner cylinder (11) and wrapped by castable to support the outer straight coil pipe (29B), a steel plate A (44) is arranged between the lower cylinder B (4) and the lower outer cylinder (5) and is fixedly connected, an inner ash drawing device (45) is arranged between the lower cylinder A (3) and the lower cylinder B (4) and is fixedly connected with a steel plate B (46), and the steel plate B (46) is arranged between the lower inner cylinder (2) and the lower cylinder A (3) and is fixedly connected.

6. The steam hot air double coil hot air furnace of claim 1, wherein: a steam inlet device (29 a) of the coil assembly (29) penetrates through the steam inlet pipe device (17) to be firmly connected with an outer straight coil (29 b), the outer straight coil (29 b) is firmly connected with an inner conical coil (29 c), the inner conical coil (29 c) is firmly connected with a lower coiled pipe (29 d), the lower coiled pipe (29 d) is firmly connected with an upper coiled pipe (29 e), the upper coiled pipe (29 e) is firmly connected with a steam outlet device (29 f), and the steam outlet device (29 f) penetrates through the steam outlet pipe device (41).