CN211233911U - Combustion furnace - Google Patents

Abstract

The utility model provides a combustion furnace, including the chimney, it installs the top at the furnace body, and be linked together with the cavity of furnace body, the chimney is by the first chimney pipe that connects gradually on going, the second chimney pipe, the third chimney pipe, fourth chimney pipe and fifth chimney pipe, first chimney pipe, the inner wall laminating of second chimney pipe and third chimney pipe has the pipe lining of fibre material, the bottom of first chimney pipe is installed on the chimney mount pad, first chimney pipe has seted up first air inlet and first gas outlet on being close to the body lateral wall of its bottom, first chimney pipe has seted up the second air inlet on being close to the body lateral wall at its top, first chimney internally installs the pre-heater, the pre-heater is located between first air inlet and the second air inlet, the cover is equipped with the rain cap on the lateral wall of second chimney pipe, the top of fifth chimney pipe is equipped with the umbrella-type hood. The utility model discloses a chimney of gas furnace simple structure, firm in connection, the corrosion resistance chamber, and it is effectual to keep warm, can the energy can be saved to a certain extent.

Description

Combustion furnace

Technical Field

The utility model belongs to the burner field, more specifically relates to a gas furnace.

Background

With the development of economy, environmental problems and resource problems are increasingly emphasized by people, on one hand, immeasurable pollution is brought to the environment by the massive combustion of coal and petroleum, and the pollution brings more serious problems to the environment; on the other hand, insufficient combustion or heat loss during combustion is a waste of resources. The existing combustion furnace has poor energy-saving property, and can not fully combust fuel during combustion, thereby wasting a large amount of resources, increasing the production cost of enterprises, easily causing pollution to the atmosphere by unburnt gas, and not conforming to the requirement of modern industrial production on environmental protection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gas furnace that can fully burn.

According to an aspect of the present invention, there is provided a combustion furnace, comprising:

the base comprises a base frame formed by pouring edge turning bricks and corner turning bricks, a turning frame coated outside the outermost edge turning bricks and a steel plate laid on the upper surface of the base frame;

the furnace body is provided with a cavity and covers the base;

the furnace door comprises a front end furnace door arranged at the front end part of the furnace body in a lifting way and a middle furnace door arranged at the position close to the rear end part of the furnace body in a lifting way;

two chimneys are arranged and are arranged at the top of the furnace body and communicated with the two cavities of the furnace body, the chimney comprises a first chimney pipe, a second chimney pipe, a third chimney pipe, a fourth chimney pipe and a fifth chimney pipe which are connected in sequence from bottom to top, the inner walls of the first chimney pipe, the second chimney pipe and the third chimney pipe are adhered with pipe linings made of fiber materials, the bottom of the first chimney pipe is arranged on the chimney mounting seat, a first air inlet and a first air outlet are arranged on the side wall of the pipe body of the first chimney pipe close to the bottom of the first chimney pipe, a second air inlet is arranged on the side wall of the pipe body of the first chimney pipe close to the top of the first chimney pipe, a preheater is arranged in the first chimney pipe, the preheater is located between first air inlet and the second air inlet, the cover is equipped with the rain cap on the lateral wall of second chimney pipe, the top of fifth chimney pipe is equipped with the umbrella-type hood.

In some embodiments, a chimney mounting seat is arranged at the top of the furnace body, and the bottom of the chimney is mounted on the chimney mounting seat through a flange.

In some embodiments, two chimneys are provided, and the two chimneys are respectively positioned at two sides of the axial center line of the furnace body.

In some embodiments, the first chimney pipe, the second chimney pipe, the third chimney pipe, the fourth chimney pipe, and the fifth chimney pipe are sequentially connected by a flange.

In some embodiments, the first inlet port, the first outlet port, and the second inlet port are provided with connecting flanges at their ends.

In some embodiments, the furnace body further comprises a combustion air pipeline and a natural gas pipeline, wherein a burner is arranged on the side wall of the furnace body, and the combustion air pipeline and the natural gas pipeline are respectively connected with the burner.

In some embodiments, a preheater is arranged in the chimney, and the air in the combustion air pipeline is conveyed to the burner through the preheater.

In some embodiments, the furnace body is provided with a lining of fibrous structure on its inner surface.

The beneficial effects are as follows: the chimney of the gas furnace has simple structure, firm connection, corrosion resistance cavity and good heat preservation effect, and can save energy to a certain extent; the furnace lining of the gas furnace adopts a fiber structure, so that the heat preservation performance of the furnace body is improved, the energy is saved, and the production cost is reduced; no pollution and good environmental protection benefit.

Drawings

Fig. 1 is a schematic front view of a base of a gas stove according to an embodiment of the present invention;

fig. 2 is a schematic top view of a base of a gas stove according to an embodiment of the present invention;

fig. 3 is a schematic bottom view of a base of a gas stove according to an embodiment of the present invention;

fig. 4 is a schematic front view of a furnace body of a gas furnace according to an embodiment of the present invention;

fig. 5 is a left side view schematically illustrating a furnace body of a gas furnace according to an embodiment of the present invention;

fig. 6 is a schematic top view of a furnace body of a gas furnace according to an embodiment of the present invention;

fig. 7 is a schematic front view of an electric wheel device of a gas stove according to an embodiment of the present invention;

fig. 8 is a schematic top view of an electric wheel device of a gas stove according to an embodiment of the present invention;

fig. 9 is a schematic top view of a rear seal assembly of a gas burner in accordance with an embodiment of the present invention;

FIG. 10 is a schematic sectional view taken along line A of FIG. 9;

fig. 11 is a schematic structural view illustrating a side sealing assembly of a gas furnace in a tensioned state according to an embodiment of the present invention;

FIG. 12 is a schematic sectional view taken along line A of FIG. 11;

fig. 13 is a schematic structural view illustrating a side sealing assembly of a gas burner in a relaxed state according to an embodiment of the present invention;

FIG. 14 is a schematic sectional view taken along line A of FIG. 13;

fig. 15 is a schematic front view of a front end door of a gas furnace according to an embodiment of the present invention;

fig. 16 is a left side view schematically illustrating a front end door of a gas furnace according to an embodiment of the present invention;

fig. 17 is a left side sectional view of a front end door of a gas furnace according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a front end furnace door lifting device of a gas furnace according to an embodiment of the present invention;

fig. 19 is a schematic top view of a furnace door lifting device of a gas furnace according to an embodiment of the present invention;

FIG. 20 is a schematic view of the double sprocket apparatus of FIG. 19;

fig. 21 is a schematic structural view of a front end door sealing assembly of a gas furnace according to an embodiment of the present invention;

fig. 22 is a schematic view illustrating an installation of an intermediate door seal assembly of a gas furnace according to an embodiment of the present invention;

fig. 23 is a schematic structural view of an intermediate furnace door sealing assembly of a gas furnace according to an embodiment of the present invention;

fig. 24 is a schematic front view of a chimney assembly of a gas stove according to an embodiment of the present invention;

fig. 25 is a left side schematic view of a chimney assembly of a gas stove according to an embodiment of the present invention;

fig. 26 is a schematic front view of a combustion air line of a gas furnace according to an embodiment of the present invention;

FIG. 27 is an enlarged view of portion A of FIG. 26;

fig. 28 is a schematic top view of a combustion air line of a gas furnace according to an embodiment of the present invention;

fig. 29 is a schematic view of a natural gas pipeline of a gas stove according to an embodiment of the present invention;

FIG. 30 is an enlarged view of portion A of FIG. 29;

fig. 31 is an enlarged view of a portion B in fig. 29.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 to 31 schematically show a gas stove according to an embodiment of the present invention. As shown in fig. 1 to 31, the combustion furnace includes a base 1, a motor-driven wheel device 2, a furnace body 3, a rear seal assembly 61, a side seal assembly 62, a furnace door lifting device 5, a front furnace door seal assembly 71, a middle furnace door seal assembly 72, a chimney assembly, a combustion air duct assembly 9 and a natural gas duct assembly 10.

As shown in fig. 1 to 3, the furnace carriage base 1 is a rectangular parallelepiped base frame cast by edge turning bricks 11 and corner turning bricks 12. And pouring the corner bricks 12 at the joints of the longitudinal edge turning bricks and the transverse edge turning bricks. The edge turning brick and the corner turning brick sequentially comprise clay refractory bricks 131 and clay insulating bricks 132 from top to bottom. The car edge brick 11 is externally coated with a car frame 15. The longitudinal car frame and the transverse car frame are connected through a car corner frame 16, and the car corner frame 16 is coated outside the car corner brick 12. The car frame 15 and the car corner frame 16 are channel steel. The upper surface of the base frame is provided with I-shaped steel 17, and the upper surface of the I-shaped steel 17 is paved with a steel plate 18, thereby forming a cuboid furnace body. The steel plate 18 is connected to each of the side frames 15 by bolts and nuts, and a washer is provided between the nut and the steel plate to protect the steel plate 18. The steel plate 18 is connected with the I-shaped steel 17 through bolts and nuts, and a washer is arranged between the nuts and the steel plate and used for protecting the steel plate 18. The base 1 is provided with a plurality of temperature measuring field holes 19 penetrating through the body. The temperature measuring field hole 19 is perpendicular to the base body, so that the temperature can be conveniently measured. When measuring the temperature, putting the temperature detector into a temperature measuring field hole for measuring the temperature; when the temperature is not required to be measured, the temperature measuring field hole is plugged by fibers. In this embodiment, four temperature field measuring holes 19 are formed in the steel plate on the upper surface of the base. The upper surface of the base is cast with an intermediate furnace door cast pier 14. The surface of the middle furnace door pouring pier 14 is provided with air dispersion holes.

The bottom of the base 1 is provided with longitudinal beams 101 along its longitudinal direction. The stringer 101 comprises two stringer webs 102 arranged in parallel. The longitudinal beam web is provided with a connecting plate 103 extending outwards along the vertical direction. The stringer webs 102 are formed by connecting narrow beams 104 and wide beams 105 at intervals. The width of the wide beam 105 is smaller than the width of the narrow beam 104. The connection part of the wide beam 105 and the narrow beam 104 is in a right angle shape, and wheels are arranged at the connection part of the wide beam 105 and the narrow beam 104. The wheels include a driving wheel 21 or a driven wheel 22. The driving wheels 21 are arranged at the positions of the longitudinal beams close to the two ends, and a plurality of driven wheels 22 are further mounted on the longitudinal beams. A plurality of driven wheels 22 are located between the two driving wheels 21. The wheel is rotatably mounted by bearings at the right angle junction of the wide beam 105 and the narrow beam 104 and is secured by fasteners 23. Specifically, the wheel is rotatably mounted on a connecting shaft 24 through a bearing, and both ends of the connecting shaft 24 are respectively connected with the inner side surfaces of two longitudinal beam webs 102 and are reinforced at the right-angle joint of a narrow beam 104 and a wide beam 105 through a fixing piece 23. The fixing member 23 is of a unitary structure. The fixing member 23 includes a clamping portion 231 and connecting portions 232 connected to both ends of the clamping portion 231. The clamping portion 231 is in the shape of a quarter arc and is attached to the outer surface of a quarter of the connecting shaft 24. The two connecting portions 232 are fixed to the wide beam 105 and the narrow beam 104 by bolts and nuts, respectively, into which both ends of the bolts are screwed. Thereby, the driving wheels 21 and the driven wheels 22 are rotatably mounted on the side members 101. Specifically, the bolt passes through the connecting portion 232 and the connecting plate 103 in order, and both ends of the bolt are screwed in the nuts. In practical application, in order to adjust the installation position of the fixing member, adjusting steel plates 25 are respectively padded between the connecting plates 103 at the connection positions of the fixing member and the wide beams 105 and the narrow beams 104. Specifically, the bolt passes through the connecting portion 232, the adjustment steel plate 25, and the connecting plate 103 in this order, and both ends of the bolt are screwed into the nuts. In this embodiment, two driving wheels 21 and four driven wheels 22 are mounted on the longitudinal beam 101, and the longitudinal beam is formed by connecting four narrow beams 104 and three wide beams 105 at intervals. One end of the longitudinal beam 101 is provided with a drag chain 106, and the furnace body is convenient to move through the drag chain 106. The drag chain 106 is a fully enclosed steel drag chain.

As shown in fig. 4 to 6, a furnace body 3 is covered above the base 1, and the furnace body 3 includes a rectangular parallelepiped outer shell 31 and a furnace chamber 32. The furnace lining 35 is arranged on the inner side wall and the inner top of the furnace body 3. The side wall of the furnace body 3 is provided with a plurality of low nitride burners 33 near the bottom. The low-nitride burners 33 on both side walls of the furnace body 3 are arranged alternately. The side wall of the furnace body 3 is provided with a plurality of thermocouple seats 34 near the top, and the thermocouple seats 34 are arranged in a straight line. The thermocouple seat 34 is provided with a thermocouple for measuring the temperature in the furnace body. The front end of the furnace body 3 is provided with a front furnace door, and the middle part of the furnace body 3 close to the rear end is provided with a middle furnace door. When the middle furnace door falls down, the bottom of the middle furnace door is placed on a pouring pier 14 of the middle furnace door of the base. The top outer part of the furnace body 3 extends upwards to be provided with two chimney components communicated with the cavity of the furnace body. The chimney component comprises two chimneys 5 which are respectively positioned at two sides of the axial central line of the furnace body 3.

As shown in fig. 7 and 8, the electric wheel device 2 includes an active wheel 21 and a wheel motor 26. The wheel motor 26 is connected with the driving wheel 21, the wheel motor drives the driving wheel 21 to rotate, and the rotation of the driving wheel 21 drives the driven wheel 22 to rotate. The stringer 101 comprises two stringer webs 102 arranged in parallel. The wheel motor 26 is connected with one longitudinal beam web 102 through the flange plate 261 in a welding mode, and therefore the motor is fixedly installed on the longitudinal beam web 102. The pinion 27 is fixedly sleeved on the bolt and fixed through a nut, and a washer is arranged between the nut and the pinion 27. The rotating shaft 24 of the motor is fixedly connected with a bolt inserted into the pinion 27 through a bolt and a nut. Thereby, the rotation of the rotation shaft of the motor 26 rotates the pinion 27. The pinion gear 27 is in meshing engagement with the bull gear 28. The bull gear 28 and the driving wheel 21 are respectively sleeved on the same connecting shaft 24 through a bearing 281 and a bearing 211, and the connecting shaft 24 is fixedly arranged between the two longitudinal beam webs 102. The wheel disc of the large gear 28 is fixedly connected with the wheel disc of the driving wheel 21 through bolts and nuts. Wherein, the two ends of the bolt are connected in the nuts by screw thread, a washer is arranged between one of the nuts and the big gear 28, and a washer 212 is arranged between the other nut and the driving wheel 21. A felt 241 is arranged between the driving wheel 21 and the connecting shaft 24, and a felt is arranged between the big gear 28 and the connecting shaft 24. The end of the connecting shaft 24 is provided with an oil cup 241 for lubricating the shaft and the bearing. The rotation of the pinion gear 27 drives the rotation of the bull gear 28, and the rotation of the bull gear 28 drives the rotation of the driving wheel 21.

As shown in fig. 9 to 10, a rear seal assembly 61 is provided between the rear end of the pedestal 1 and the rear end of the furnace body 3. The rear seal assembly 61 includes a seal block 611, a retainer 612, and a hold down bar 613. The bottom of the rear end of the furnace body 3 is provided with a fixing part 612. The fixing member 612 includes a connecting portion 6121 fixedly connected to the bottom of the rear end of the furnace body and a fixing portion 6122 extending downward from both ends of the connecting portion 6121. The two fixing portions 6122 are disposed in parallel and located on the same side of the connecting portion 6121. The fixing portion 6122 is provided with a threaded hole. The pressing rod 613 passes through the screw holes of the two connecting portions 6121 in turn to abut the sealing block at the intersection of the rear end of the base 1 and the bottom of the rear-end furnace lining 35 of the furnace body 3. The other three surfaces of the sealing block 611 not in contact with the rear end of the base 1 are partially covered in the clamping sleeve 614, and the clamping sleeve 614 abuts against the pressing rod 613, so that the pressing rod 613 exerts force on the sealing block 611. In order to further enhance the pressing of the pressing rod 613 to the sealing block 611, the pressing rod 613 is inserted into the nut 614, the washer 615, the threaded hole of the connecting portion 6121 located on the outer side, the washer 616 for the channel steel, the spring 617, the washer 618, and the nut 619 in this order. Therefore, the threaded connection between the pressing rod 613 and the fixing member 612 is prevented from loosening and falling off, the firmness and tightness of the pressing rod 613 and the fixing member 612 in work are enhanced, and the pressing rod 613 and the fixing member 612 are prevented from being displaced or having a gap after being stressed.

As shown in fig. 11 to 14, the side seal assembly 62 includes a cylinder 621, a pull rod 622, a seal groove 623, and a plurality of brackets 624 provided at the bottom of the sidewall of the furnace body 3. The bottom of the side wall of the furnace body 3 is provided with a plurality of brackets 624. In this embodiment, nine supports 624 are provided at the bottom of the side wall of the furnace body 3. The support 624 is disposed perpendicular to the side wall of the furnace body 3. Each bracket 624 can be rotatably provided with a tug boat device. The tug boat arrangement comprises two parallel arranged turning bars 625. Two mounting blocks 6241 are provided at the top of the bracket 624. The mounting block 6241 is provided with a connecting through hole, the bottom of the rotating rod 625 is provided with a connecting through hole, the rotating shaft 6251 sequentially passes through the connecting through hole of one of the mounting blocks 6241, the connecting through hole of one of the rotating rods 625, the connecting through hole of the other rotating rod 625 and the connecting through hole of 6241 of the other mounting block, the diameter of the rotating shaft 6251 is smaller than the aperture of the connecting through hole of the rotating rod 625, the diameter of the rotating shaft 6251 is smaller than the aperture of the connecting through hole of the mounting seat, and therefore the rotatable connection of the rotating rod and the mounting block 6241 is realized. One end of the rotary shaft 6251 is provided with a stopper having a diameter larger than that of the coupling through-hole of the rotary rod, and the other end of the rotary shaft 6251 is screwed into the nut, thereby restricting the axial movement of the rotary shaft 6251. A connecting shaft 626 is provided between the two rotating levers 625, and the connecting manner between the rotating lever 625 and the connecting shaft 626 is the same as the connecting manner between the rotating lever 625 and the rotating shaft 6251. A plurality of through holes are formed in the pull rod 622, and a plurality of rotating shafts 6251 of the plurality of brackets 624 are rotatably inserted into the plurality of through holes of the pull rod 622, respectively. The bottom of the rear end of the furnace body 3 is provided with a cylinder base 6211. The cylinder block of the cylinder 621 is rotatably mounted on a cylinder base 6211. The cylinder head of the cylinder 621 is rotatably connected to one end of the rod 622 via a rotating shaft 626. Specifically, one end of the pull rod 622 located at the rear end of the furnace body 3 is rotatably connected with the cylinder head through a cylinder rotating shaft. The through hole of the other end of the pull rod 622 located at the front end of the furnace body 3 is sleeved on the rotating shaft 6251. The tops of the two rotating rods 625 are rotatably connected with a sealing groove 627 through a rotating shaft. The rotating shaft is rotatably arranged between the two rotating rods. The bottom of the seal groove 623 is fixedly connected to the seal groove rotation shaft. The seal groove 623 is located between the two rotation rods 625. The cylinder head of the cylinder 621 extends out of the cylinder seat to push the pull rod 622 to move towards the front end of the furnace body 3, the movement of the pull rod 622 drives the rotating rod 625 to move towards the front end of the furnace body 3 relative to the support 624, and the movement of the rotating rod 625 enables the sealing groove 623 to be separated from the bottom of the side wall of the furnace body 3; the cylinder head of cylinder retracts the cylinder block, promotes pull rod 622 and moves towards the rear end of furnace body 3, and the removal of pull rod 622 drives dwang 625 and moves towards the rear end of furnace body 3 for support 624, and the removal of dwang 625 makes seal groove 623 and the bottom laminating of furnace body 3 lateral wall, plays the effect of side seal.

As shown in fig. 15-17, the oven door includes a front oven door 4 and a middle oven door. The front end of the furnace body is provided with a front furnace door, and the middle part of the furnace body is provided with a middle furnace door close to the rear end. The middle furnace door divides the cavity of the furnace body into two cavities, and the two chimneys are respectively communicated with the two cavities. The front door 4 includes a door frame 41 and an inner case 42. The door frame is including setting up in frame rectangular pipe all around and setting up horizontal rectangular pipe and the vertical rectangular pipe in frame rectangular pipe. A plurality of longitudinal rectangular tubes which are longitudinally arranged are arranged between the two transverse frame plates. A plurality of transverse rectangular tubes which are transversely arranged are arranged between the two longitudinal frame plates. The frame rectangular pipe, the transverse rectangular pipe, and the longitudinal rectangular pipe form the door frame 41. One side of the door frame 41 is bonded with a steel plate 43. The outer partition 44 is provided around the inner surface of the door frame 41 inward in the vertical direction, and the outer partition 44 has a rectangular shape identical to the shape of the door frame 41. An inner partition 45 is further provided on the inner surface of the door frame 41 inward in the vertical direction, and the inner partition 45 has a rectangular shape identical to the shape of the door frame 41. The inner partition 45 is located within the outer partition 44. A frame fiber lining 46 is filled between the outer partition 44 and the inner partition 45. The rectangular parallelepiped formed by the inner partition is filled with an inner fiber lining 47. The thickness of the border fibrous lining is greater than the thickness of the inner fibrous lining. The inner casing 42 includes an inner panel and four side frames extending from the periphery of the inner panel in the vertical direction thereof. The four frames are connected in sequence. The inner sleeve 42 is sleeved on the door frame 41 provided with the fiber lining, the frame 41 is connected with the inner sleeve 42 through a bolt and a nut, and a gasket is arranged between the nut and the inner sleeve 42 and used for protecting the front door 4. The front oven door 4 is provided with a peep pipe 48 penetrating through the body thereof for observing the condition of the exposed part of the body. In this embodiment, two sight tubes 48 are provided.

As shown in fig. 18 to 20, the oven door lifting device 5 includes a cross beam 51, a column 52, and a sprocket gear. The top of the furnace body 3 is provided with a cross beam 51 along its transverse direction. The beam 51 includes two parallel beam webs 511, and a plurality of connecting plates 512 for reinforcing the structure are disposed between the two beam webs 511. The two ends of the beam 51 are respectively connected with a column 52 for supporting. The cross beam 51 is provided above the furnace body 3 via two vertical columns 52. The cross beam 51 is provided with a chain wheel transmission device. The sprocket assembly comprises two single sprocket assemblies 53, one double sprocket assembly 54 and two sleeve roller chains 55. The single sprocket 53 includes a single chain drive gear 531 and a single chain rotation shaft 532. The single chain drive gear 531 is fixedly sleeved on the single chain rotation shaft 532. Both ends of the single-chain rotating shaft 532 are rotatably mounted on the cross member 51 through bearings. The single chain turning shaft 532 is inclined at an angle with respect to the vertical direction of the cross member 51. In this embodiment, the single-stranded-bar rotational axis 532 is inclined by 1 ° with respect to the vertical direction of the cross beam 51. The double sprocket assembly 54 includes two double chain drive gears 541 and a double chain rotating shaft 542. Two double-chain transmission gears 541 are fixedly sleeved on the double-chain rotating shaft 542. A key 544 is provided between the two double-chain transmission gears 541 and the double-chain rotating shaft 542 for circumferentially fixing the two double-chain transmission gears 541 and the double-chain rotating shaft 542. Both ends of the double chain rotating shaft 542 are rotatably mounted on the cross member 51 through bearings 543. Specifically, both ends of the double-chain rotating shaft 542 are mounted on the two beam webs 511 through bearings 543, respectively. The bearing 543 is a seated bearing. The bearing 543 is mounted in the bearing mount 5431. The bearing mount 5431 includes a bearing mounting portion 5432 for mounting a bearing and bearing fixing portions 5433 extended from the bearing mounting portion to both sides thereof. The bearing fixing portion 5433 is connected to the beam web 511 by a bolt 5434 and a nut 5435. The bolt 5435 is further sleeved with a square washer 5436, which is positioned between the nut 5435 and the bottom of the cross beam 51, thereby improving the firmness of the cross beam 51 and the bearing fixing portion 5433. The double chain rotation shafts 542 are inclined at an angle with respect to the vertical direction of the cross member 51. The single chain rotation shaft 532 and the double chain rotation shaft 542 are inclined at the same angle and direction with respect to the vertical direction of the cross member 51. In this embodiment, the double chain rotation shaft 542 is inclined by 1 ° with respect to the vertical direction of the cross member 51. Thereby, the transmission of the sleeve roller chain 55 is facilitated. The outer side wall of the furnace body 3 is provided with a placing plate 36 along the vertical direction thereof, and the upper surface of the placing plate 36 is connected with an electric hoist 56 through bolts and nuts. One of the bush roller chains 55 is engaged and connected to the single chain drive gear 531 of one of the single sprockets 53 and one of the double chain drive gears 541 of the double sprocket 54. One end of the sleeve roller chain 55 is connected to the top of the oven door 3. The end of the muffle roller chain 55 connected to the top of the oven door 3 is provided with a connecting pull bar 551, and the connecting pull bar 551 is screwed into a nut through the top frame of the oven door 3, thereby connecting the muffle roller chain 55 to the top of the oven door 3. The other end of the sleeve roller chain 55 is connected to an electric block 56. The other sleeve roller chain 55 is engaged with the single chain drive gear 531 of the other single sprocket 53 and the other double chain drive gear 541 of the double sprocket 54. One end of the sleeve roller chain 55 is connected to the top of the oven door 3. The other end of the sleeve roller chain 55 is connected to an electric block 56. The electric block 56 drives the sleeve roller chain 55 to drive, thereby driving the oven door 4 to move upwards or downwards.

As shown in fig. 21, a front end furnace door sealing assembly 71 is arranged at the joint of the front end furnace door and the furnace body 3. The front end oven door seal assembly 71 includes a seal cylinder 711, an upper guide wheel 712, and a lower guide wheel 713. The upper guide 712 and the lower guide 713 are respectively provided on both side surfaces of the door 3. The upper guide pulley 712 is near the top of the oven door 3 and the lower guide pulley 713 is near the bottom of the oven door 3. The seal cylinder 711 is mounted on the column 52. The column 52 is provided with a bracket 521 extending in a direction perpendicular to the rear end of the furnace body 3. The cylinder block of the sealing cylinder 711 is mounted on the bracket 521. The cylinder head of the sealing cylinder 711 is provided with a fixing groove 7111. The notches of the fixing groove 7111 face upward, and particularly, the notches of the fixing groove 7111 face the cross beam 51. An upper sealing cylinder is provided on the column 52 corresponding to each upper guide wheel 712. A lower sealing cylinder is provided on the column 52 corresponding to each lower guide wheel 713. The upper guide wheel 712 includes a connecting portion 7121, and a clamping portion 7122 and a fixing portion 7123 extending from both ends of the connecting portion 7121 in a vertical direction thereof. The clamping portion 7122 is adjacent to an inner surface of the door 4 while being adjacent to the fixing groove 7111, the fixing portion 7123 is adjacent to an outer surface of the door 4, and the connecting portion 7121 is disposed perpendicular to both surfaces of the door 4. The end of the clamping portion 7122 is an upper circular roller which can be placed in the notch of the fixing groove 7111. Therefore, when the cylinder head of the upper sealing cylinder 711 retracts, the furnace door 4 can be pulled to move towards the furnace body 3, and the sealing effect is further enhanced. The inner surface of the notch of the fixing groove 7111 is formed in a circular arc shape so as to fit the end of the clamping portion 7122. The lower guide wheel 713 is a lower round roller. The lower circular roller may be placed in a notch of the fixing groove 7111 to which the lower sealing cylinder 711 is connected. Therefore, when the cylinder head of the lower sealing cylinder 711 retracts, the furnace door 4 can be pulled to move towards the furnace body 3, and the sealing effect is further enhanced. The lower round roller corresponds to the position of the fixing portion 7123, near the outer surface of the door 4. Specifically, the fixing part 7123 has a round roller shape, and the distance from the center thereof to the outer surface of the door 4 is the same as the distance from the lower round roller to the outer surface of the door 4. A connecting rod 7112 is arranged between the cylinder head of the sealing cylinder 711 and the lower round roller and is used for lengthening the distance between the lower round roller and the cylinder head of the sealing cylinder 711, so that when the furnace door 4 is lifted, the lower guide wheel 713 can smoothly pass through the fixing groove 7111 connected with the upper sealing cylinder, and the blocking phenomenon cannot occur.

The lifting device lowers the oven door, an upper guide wheel 712 on the side face of the oven door is clamped in the upper fixing groove 7111, a lower guide wheel 713 on the side face of the oven door is clamped in the lower fixing groove 7111, the cylinder head of the upper sealing cylinder 711 and the cylinder head of the lower sealing cylinder 711 retract at the same time, and the oven door is pulled to move towards the oven body, so that the oven door and the oven body 3 are sealed.

When the furnace door needs to be opened, the cylinder head of the upper sealing cylinder and the cylinder head of the lower sealing cylinder extend out simultaneously, the furnace door is pushed to move in a direction departing from the furnace body 3, a certain distance is reserved between the furnace door and the furnace body 3, and the lifting device lifts the furnace door 4 to open the combustion furnace.

As shown in fig. 22-23, an intermediate oven door seal assembly 72 is provided between the intermediate oven door and the top of the oven body 3. The intermediate oven door seal assembly 72 includes an intermediate oven door seal cylinder 721 and an intermediate oven door seal block 722. The middle furnace door seal cylinder 721 includes a cylinder block and a cylinder head. The cylinder block 7211 of the intermediate furnace door seal cylinder 721 is connected to a cylinder mount 7213 on the top of the furnace body. The end of the cylinder head 7212 of the intermediate oven door seal cylinder 721 is connected to the intermediate oven door seal block 722. To facilitate connection of the cylinder head 7212 to the seal block 722, the intermediate oven door seal block 722 includes a connector 7221 and a seal 7222. The coupling 7221 is a metal member that is easily coupled to the cylinder head 7212. The sealing member 7222 is made of a fiber material that can perform a sealing function. The sealing member 7222 includes a first sealing part 72221 attached to one surface of the middle oven door and a second sealing part 72222 coated on both sides of the middle oven door. Two second seals 72222 are connected at both ends of the first seal 72221 and are located on the same side of the first seal 72221. The connector 7221 includes a first connector 72211 for over-gripping the first seal 72221 and a second connector 72212 for over-gripping the second seal 72222. Two second connectors 72212 are located at both ends of first connector 72211 and on the same side of first connector 72211. The coupling member 7221 is provided with a cavity, the sealing member 7222 is housed in the cavity of the coupling member 7221, and the sealing member 7222 protrudes from the coupling member 7221, thereby enabling the sealing block 722 to perform a sealing function. The top of the middle furnace door is higher than the top of the furnace body 3. In this embodiment, in order to provide sufficient pushing force to the sealing blocks, the middle oven door sealing cylinder 722 is provided in plurality. The middle furnace door sealing cylinders are arranged in parallel. When the furnace door and the furnace body 3 are sealed, the cylinder head 7212 of the sealing cylinder 721 of the middle furnace door extends out, the sealing block is pushed to enable the first sealing part 72221 to be attached to the contact position of the surface of the middle furnace door and the top of the furnace body, and the second sealing part 72222 is attached to the contact position of the side surface of the middle furnace door and the top of the furnace body 3 and used for sealing the gap of the contact position of the middle furnace door and the furnace body 3.

As shown in fig. 24 and 25, a chimney mount 36 is provided on the top of the furnace body 3. The chimney 8 is mounted on the chimney mount 36 by a flange 361. The chimney 8 is formed by connecting a plurality of sections of chimney pipelines in sequence. The multi-section chimney pipe comprises a first chimney pipe 81, a second chimney pipe 82, a third chimney pipe 83, a fourth chimney pipe 84 and a fifth chimney pipe 85 which are connected in sequence from bottom to top. The inner walls of the first chimney 81, the second chimney 82 and the third chimney 83 are provided with pipe linings made of fiber materials. In this embodiment, the chimney duct is tubular. The bottom of the first chimney pipe 81 is mounted to the chimney mount 36 via a flange 361. The top of the first chimney 81 is flanged to the bottom of the second chimney 82. Two air outlets 802 for outputting hot air heated by the preheater are formed in the side wall of the pipe body of the first chimney pipe 81 close to the bottom. An air inlet 801 for cold air inlet is formed in the side wall of the first chimney pipe 81 close to the top. A preheater is installed in the first chimney duct, and is located between the air inlet 801 and the air outlet 802. And the ports of the air inlet 801 and the air outlet 802 are both provided with connecting flanges for connecting external pipelines. An electric adjusting device is arranged at the connecting flange of the first chimney pipe 81 and the second chimney pipe 82. The outer side wall of the second chimney duct 82 is sleeved with a rain cap 821 for draining rainwater. The top of the second chimney 82 is flanged to the bottom of the third chimney 83. The top of the third chimney 83 is flanged to the bottom of the fourth chimney 84. The top of the fourth chimney 84 is flanged to the bottom of the fifth chimney 85. An umbrella-shaped blast cap 851 is arranged at the top of the fifth chimney pipe 85.

As shown in fig. 26 to 28, the combustion air duct assembly 9 includes a fan 91, a cold air duct 92, and a hot air duct 93. The air inlet pipe 911 is connected with an air inlet of the fan 91 through a flange. The air outlet of the fan 91 is connected with the small-caliber opening of the special pipe 912 through a flange. The large-diameter opening of the reducing pipe 912 is flanged to one end of a flexible rubber joint 913. The other end of the windable rubber joint 913 is flanged to a small-diameter port of the reducer joint 914. The large-diameter opening of the reducer union 914 is connected with one end of a communicating steel pipe 915 in a welding mode. The other end of the communicating steel tube 915 is welded with one end of the elbow 916, and the other end of the elbow 916 is welded with one end of the cold air tube 92. In this embodiment, the cold air duct 92 is provided with two cold air branch ducts 921, and the cold air duct 92 is connected to the two air inlets 801 of the chimney 8 through the two cold air branch ducts 921. The end of the cold air branch pipe 921 is flanged with the air inlet 801. The air outlet 802 of the chimney 8 is connected with a hot blast pipe 93 through a flange. The hot air duct 93 is connected to a hot air flow duct 931. The outside cover of hot-blast main 93 is equipped with the cotton rock sleeve pipe, plays the heat retaining effect. The thickness of the cotton rock sleeve pipe is 50mm, and the cotton rock sleeve pipe is wrapped with a 3003 aluminum plate with the thickness of 0.5mm, so that the heat preservation effect is further achieved. Flange type closing plates 932 are respectively arranged at two ends of the hot air circulation pipe 93. An explosion-proof membrane 933 is fixedly arranged at the end part of the hot air circulation pipe 931 through a flange type closing plate 932. The hot air pipe 93 is welded to the hot air flowing pipe 931. The hot air flow pipe 931 is connected to the low-nitride burner 33 through a connecting steel pipe 934. Thereby directing the hot air to the low nitride burner 33. The connecting steel tube 934 is connected with one end of the welded expansion joint 935 through a flange. The other end of the welded expansion joint 935 is connected to the low nitride burner 33 by a pneumatic two-position butterfly valve 936. The welded expansion joint 935 effectively compensates for axial deformation effects. The pneumatic two-position butterfly valve 936 can control the air volume and realize the automatic control of the temperature. The connecting steel pipe 934 is wrapped by a cotton rock sleeve 937 to play a role in heat preservation. The thickness of the cotton rock sleeve pipe is 50mm, and the cotton rock sleeve pipe is wrapped with a 3003 aluminum plate with the thickness of 0.5mm, so that the heat preservation effect is further achieved. After each pipeline in the combustion air pipeline assembly 9 is installed, impurities in the pipeline are removed completely by using 0.2MPa of compressed air, and instruments on the pipeline need to be isolated during blowing. The flange bolt holes used in the combustion air duct assembly 9 need to be arranged in a span manner. Asbestos gaskets with the thickness of 3mm are padded at the joints of the flanges, and the function of heat preservation is achieved.

As shown in fig. 29 to 31, the natural gas pipeline assembly 10 includes a first seamless steel pipe 101, a first bleeding pipe 1011 communicating with the first seamless steel pipe 101, a pressure gauge 1012 disposed on the first seamless steel pipe 101, a clamp-type turbine butterfly valve 1013 connected to the first seamless steel pipe 101, a second seamless steel pipe 102, a second bleeding pipe 1021 communicating with the second seamless steel pipe 102, a pneumatic butterfly valve 1022 disposed on the second seamless steel pipe 102, a bellows pressure gauge 1023 disposed on the second seamless steel pipe 102, a third bleeding pipe 1024 communicating with the second seamless steel pipe 102, a gas turbine flowmeter 1025 disposed on the second seamless steel pipe 102, and a gas pipeline connected to the second seamless steel pipe 102. The second diffusing pipe 1021 and the third diffusing pipe 1024 are connected to share one outlet. The first section of seamless steel pipe 101 is connected to the inlet end of a pressure regulator 1027 via a first reducer union 1026. Specifically, the first seamless steel tube 101 is welded to a large-diameter port of the first reducer 1026, and a small-diameter port of the first reducer 1026 is connected to an inlet end of the pressure regulator 1027 through a flange. The outlet end of the pressure regulator 1027 is connected to the second seamless steel tube 102 through a second reducer 1028. Specifically, a small-diameter opening of the second reducer 1028 is connected to an outlet end of the pressure regulator 1027 through a flange, and a large-diameter opening of the second reducer 1028 is welded to the second seamless steel tube 102. The second diffusing pipe 1021 is arranged perpendicular to the second seamless steel tube 102. A second valve is arranged on the second diffusing pipe 1021. Two ends of the pneumatic butterfly valve 1022 are respectively connected with the second seamless steel pipe 102 through flanges. The third diffusing pipe is arranged perpendicular to the second seamless steel pipe 102. A third valve is arranged on the third diffusing pipe 1024. The second diffusing pipe 1021 is communicated with the third diffusing pipe 1024 through a bent pipe and a connecting pipe. Specifically, the end of the second diffusing pipe 1021 is provided with a 90-degree elbow, the 90-degree elbow is communicated with one end of a connecting pipe, and the other end of the connecting pipe is communicated with the third diffusing pipe 1024. Two ends of the gas turbine flowmeter 1025 are respectively connected with the second section of seamless steel pipe 102 through flanges. The rear end part and two side parts of the furnace body 3 are wound with a gas pipeline 103, two end parts of the gas pipeline 103 are provided with flange type sealing plates, and the second section of seamless steel pipe 102 is communicated with the middle part of the gas pipeline 103 through an equal-diameter three-way pipe 1031. Specifically, the second seamless steel pipe 102 is connected by one end of a connecting pipe, the other end of the connecting pipe is connected with one end of an elbow pipe, and the other end of the elbow pipe is connected with the middle of the gas pipeline.

The gas pipeline 103 is provided with a plurality of connecting components, and the gas pipeline 103 is connected with the low-nitride burner 33 through the connecting components. The connection assembly includes a first seamless steel tube 1031, a second seamless steel tube 1032, a third seamless steel tube 1033, and a fourth seamless steel tube 1034. The first seamless steel pipe 1031 is sequentially provided with a pipe clamp 10311 and a first two-piece ball valve 10312. The second seamless connection steel pipe 1032 is sequentially provided with a second two-piece ball valve 10321, a loose joint 10322 and an electromagnetic valve 10323. The third seamless connection steel pipe 1033 is provided with a third two-piece ball valve 10331, a loose joint 10332 and an electromagnetic valve 10333. The first seamless steel pipe 1031 and the second seamless steel pipe 1032 are connected by a bent pipe and are vertically arranged. The second seamless steel tube 1032 is connected to one end of a fourth seamless steel tube 1034 via a bent tube and is vertically disposed. The other end of the fourth seamless steel pipe 1034 is connected to the low-nitride burner 33 through an adjustable joint 10341. One end of the third seamless steel pipe 1033 is connected to the side wall of the first seamless steel pipe 1031 by welding. The joint of the third seamless steel tube 1033 and the first seamless steel tube 1031 is located between the first two-piece ball valve 10312 and the elbow. The other end of the third seamless steel pipe 1033 is connected to the side wall of the fourth seamless steel pipe 1034 by welding. The joint of the third seamless steel pipe 1033 and the fourth seamless steel pipe 1034 is located between the elbow of the fourth seamless steel pipe 1034 and the loose joint 10341. The third seamless steel pipe 1033 is arranged in parallel with the fourth seamless steel pipe 1034. The pipe diameter of the second seamless steel pipe 1032 is larger than the pipe diameter of the fourth seamless steel pipe 1034.

The above description is only some embodiments of the present invention, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.

Claims (8)

1. A burner, comprising:

the base comprises a base frame formed by pouring edge turning bricks and corner turning bricks, a turning frame coated outside the outermost edge turning bricks and a steel plate laid on the upper surface of the base frame;

the furnace body is provided with a cavity and covers the base;

the furnace door comprises a front end furnace door arranged at the front end part of the furnace body in a lifting way and a middle furnace door arranged at the position close to the rear end part of the furnace body in a lifting way;

two chimneys are arranged and are arranged at the top of the furnace body and communicated with the two cavities of the furnace body, the chimney comprises a first chimney pipe, a second chimney pipe, a third chimney pipe, a fourth chimney pipe and a fifth chimney pipe which are connected in sequence from bottom to top, the inner walls of the first chimney pipe, the second chimney pipe and the third chimney pipe are adhered with pipe linings made of fiber materials, the bottom of the first chimney pipe is arranged on the chimney mounting seat, a first air inlet and a first air outlet are arranged on the side wall of the pipe body of the first chimney pipe close to the bottom of the first chimney pipe, a second air inlet is arranged on the side wall of the pipe body of the first chimney pipe close to the top of the first chimney pipe, a preheater is arranged in the first chimney pipe, the preheater is located between first air inlet and the second air inlet, the cover is equipped with the rain cap on the lateral wall of second chimney pipe, the top of fifth chimney pipe is equipped with the umbrella-type hood.

2. The burner of claim 1, wherein the top of the furnace body is provided with a chimney mount, and the bottom of the chimney is flanged to the chimney mount.

3. The burner of claim 1, wherein there are two chimneys, one on each side of the axial centerline of the burner body.

4. The burner of claim 1, wherein the first chimney, the second chimney, the third chimney, the fourth chimney, and the fifth chimney are sequentially flanged.

5. The burner of claim 1, wherein the first inlet port, the first outlet port, and the second inlet port are provided with attachment flanges at their ends.

6. The combustion furnace as claimed in claim 1, further comprising a combustion air line and a natural gas line, wherein a burner is disposed on a side wall of the furnace body, and the combustion air line and the natural gas line are respectively connected to the burner.

7. The burner of claim 6, wherein a preheater is disposed in the stack, and air in the combustion air line is delivered to the burner via the preheater.

8. The furnace of claim 1 wherein the furnace body is lined on its inner surface with a fabric structure.

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