CN210891624U

CN210891624U - Natural gas composite combustion furnace

Info

Publication number: CN210891624U
Application number: CN201921471504.6U
Authority: CN
Inventors: 李红兵; 黄后辉; 王明
Original assignee: Yancheng City Jishengda Environmental Protection Engineering Co ltd
Current assignee: Yancheng City Jishengda Environmental Protection Engineering Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-30
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a natural gas composite combustion furnace belongs to the field of burning furnace, including frame and burner block, burner block inner medial side is equipped with receives the hot plate, it is equipped with the boiler to receive the hot plate upper end, the internal bottom medial side of burner block is equipped with burner, burner comprises ring shape locating rack, ring shape support frame, ignition frame, aerifys hole, air duct and some firearm, it is equipped with annular mount to receive the hot plate lower extreme, the vertical cylindric baffle and the cylindric filter stand that is equipped with of annular mount lower extreme, cylindric baffle outer end wall with it dries the chamber to fire to form between the internal end wall of burner, it is equipped with first scraper blade to dry the intracavity, it is equipped with the second scraper blade to receive the hot plate lower extreme, should fire energy-concerving and environment-protective, and high work efficiency realizes.

Description

Natural gas composite combustion furnace

Technical Field

The utility model relates to a fire the burning furnace field, concretely relates to natural gas composite combustion furnace.

Background

With the rapid development of scientific technology, the application of combustion furnaces is more and more extensive, coal is mostly used as fuel in the combustion furnaces, and a large amount of sulfide, nitride, smoke dust and the like are generated during the combustion of the coal, so that the environment is seriously polluted. The combustion point position in the combustion furnace is usually set by positioning, the working efficiency of the combustion furnace needs to be controlled by controlling the amount of fuel, the amount of introduced air and the like, the amount of fuel, the amount of introduced air and the like are increased for improving the working efficiency of the combustion furnace, not only is the processing cost increased, but also the equipment (a fan, and the like) is in a high-load motion state for a long time, and the service life of the equipment is shortened. The combustion waste gas contains a large amount of smoke and dust, and waste gas usually needs to be filtered by a filter screen when being led out, and the meshes of the filter screen are extremely easy to block when in use, so that equipment can be stopped, maintained and cleaned. The waste gas is often produced in the fields of industrial production and the like, some waste gases need to be burned again for purification treatment, some waste gases have combustibility, and the emission of the waste gases can not only cause the damage of the environment, but also cause the waste of combustible resources. The existing combustion furnace has single functionality, and cannot meet the multifunctional requirement of the combustion furnace in the modern society. Therefore, a new solution is now needed.

Disclosure of Invention

For solving the problem, the utility model discloses a natural gas composite combustion furnace, this fire manual regulation and control that burning point position can be realized to fire burning furnace, improve the work efficiency who fires burning furnace, adopt and cross the filtration derivation that the filter frame realized burning waste gas, and cross the filter frame and realize in good time mechanized clearance, when guaranteeing the equipment operation, equipment shutdown maintenance cleaning cost has still been reduced, reduce artifical burden, carry out the processing of burning once more to produced waste gas in fields such as industrial production, when realizing waste gas burning purification treatment, the combustible property of still make full use of's waste gas, realize the reuse of abandonment resource, increase drying function, increase the functionality who fires burning furnace.

In order to achieve the above purpose, the utility model provides a following technical scheme: a natural gas composite combustion furnace comprises a base and a combustion furnace body arranged at the upper end of the base, wherein the combustion furnace body is hollow and cylindrical, a heated plate is arranged at the middle side of the inner end of the combustion furnace body, a boiler is arranged at the upper end of the heated plate, a combustion device is arranged at the middle side of the inner bottom end of the combustion furnace body, the combustion device consists of a circular ring-shaped positioning frame, a circular ring-shaped supporting frame, an ignition frame, an air charging hole, an air guide pipe and an igniter, the circular ring-shaped supporting frame is sleeved at one end of the circular ring-shaped supporting frame, the ignition frame is arranged at the other end of the circular ring-shaped supporting frame, the end wall of the ignition frame is provided with the air charging hole, the air guide pipe is connected with the air charging hole at one end of the air guide pipe, the igniter is arranged on the outer end wall of the ignition frame, an annular, the drying cavity is internally provided with an annular rolling groove, an annular roller is arranged in the annular rolling groove, the lower end of the annular roller is uniformly and vertically provided with a first scraper, and the lower end of the heated plate is tightly attached to the inner end wall of the cylindrical filter frame and is vertically provided with a second scraper. The annular mount is fixed the setting, and even intensive the opening has the filtration hole on the cylindric filter stand end wall, and the second scraper blade is used for the clearance of cylindric filter stand, and first scraper blade plays stirring and clearance stoving intracavity end wall effect.

As an improvement of the utility model, the even vertical supporting leg that is equipped with of frame lower extreme, the bottom mid side is opened annular positioning groove in the combustion furnace body, the vertical setting of ring shape locating rack, it has the thread groove to equally divide respectively on the inboard end wall of annular positioning groove, ring shape locating rack length direction both sides outer end wall and the ring shape support frame length direction one side inner end wall, the ignition frame is cavity round platform shape, ignition frame upper end opening and its upper end cross sectional area are greater than its lower extreme cross sectional area, are the down trapezoidal setting, the outer bottom of ignition frame is equipped with some firearm, some firearm ignition head runs through ignition frame bottom end wall and stretches into the ignition frame inner chamber, the last equal radian of port outer end wall on the ignition frame evenly is equipped with the fixture block, the equal radian of ring shape support frame length direction evenly opens there is the draw-in groove, it includes natural gas inlet port, waste gas inlet port and air inlet port, radian such as the inner end wall of ignition frame upside is evenly opened there is the natural gas inlet port, radian such as the inner end wall of ignition frame middle side is evenly opened there is the waste gas inlet port, radian such as the inner end wall of ignition frame downside is evenly opened there is the air inlet port, the frame lower extreme is equipped with air main, air main includes natural gas air main, waste gas air main and air main, air duct one end with aerify the hole intercommunication, the other end is vertical run through the frame inner chamber and stretch out with air main is linked together. In the annular locating rack was twisted annular positioning groove through the thread groove, realize being connected through the thread groove between annular locating rack and the annular support frame, the fixture block inserted the draw-in groove during ignition rack installation, natural gas main feeder one end and external natural gas supply equipment intercommunication, waste gas main feeder one end and waste gas supply equipment intercommunication, air main feeder one end and the air feed organism end intercommunication of giving vent to anger, the air duct is located annular locating rack, annular support frame inboard.

As an improvement of the utility model, the top end of the cylindrical partition board is fixedly connected with the lower end of the annular fixing frame, the bottom end is fixedly connected with the inner bottom wall of the combustion furnace body, the inner side of the cylindrical partition board is provided with a cylindrical filter frame, the lower end of the annular fixing frame is provided with an annular chute, an annular slider is movably arranged in the annular chute, the lower end of the annular slider is fixedly arranged on the cylindrical filter frame, a gap is left between the bottom end of the cylindrical filter frame and the inner bottom wall of the combustion furnace body, the bottom end of the cylindrical filter frame is uniformly provided with a cleaning frame along the equal radian of the bottom end of the cylindrical filter frame, the cleaning frame is arranged along the caliber direction of the inner end of the cylindrical partition board, the length of the cleaning frame is less than the length of the distance between the inner end wall of the cylindrical partition board and the outer end wall of the annular positioning frame, the length, the bottom of the combustion furnace body is provided with a strip-shaped slag discharging port, the machine base corresponds to the strip-shaped slag discharging port and is provided with a strip-shaped slag guiding port, the lower end of the machine base corresponds to the strip-shaped slag guiding port, a slag collecting box body is detachably arranged on the position of the strip-shaped slag discharging port, the strip-shaped slag discharging port is arranged along the length direction of the distance between the inner end wall of the cylindrical partition plate and the outer end wall of the annular positioning frame, one end of the exhaust pipe is communicated with the exhaust port, the other end of the exhaust pipe penetrates through the inner end wall of the combustion furnace and extends out, a rotating shaft is vertically arranged in the middle of the inner cavity of the air inlet end of the exhaust pipe, two side ends of the rotating shaft in the length direction movably penetrate through the inner end wall of. The cylindrical filter frame can rotate freely, the air outlet end of the exhaust pipe is communicated with an external waste gas treatment device, and the external waste gas treatment device can be manufactured and used by adopting the prior art.

As an improvement of the utility model, a transmission shaft is vertically and movably arranged between the extending end at the upper side of the rotating shaft and the outer end wall of the annular fixing frame, a grooved wheel is sleeved outside the transmission shaft and corresponding to the position of the driving plate, a transmission gear is sleeved outside the transmission shaft and corresponding to the position of the annular fixing frame, an arc-shaped notch is arranged at the edge end of the driving plate, a driving rod is connected with the middle part of the inner end of the arc-shaped notch, the non-connecting end of the driving rod is provided with a driving pin, radial grooves are uniformly arranged on the grooved wheel in equal radian, locking arcs are respectively arranged between the circumferential end wall at the outer side of the grooved wheel and positioned in the radial grooves, the driving rod and the radial grooves are respectively designed along the radial direction of the horizontal cross section of the driving plate and the grooved wheel, a transmission tooth, the opening is communicated with the annular sliding groove, the transmission gear partially extends into the opening, and gear teeth outside the transmission gear are meshed with the transmission tooth grooves for transmission. Rotation of the dial causes the drive pin to move along the length of the radial slot, thereby intermittently rotating the sheave.

As an improvement of the utility model, the annular rolling slot corresponds drive gear position sets up, the first isoplanar of annular gyro wheel inner end wall evenly opens has the drive tooth's socket, the outside teeth of a cogwheel of drive gear with the drive tooth's socket meshes the transmission each other, first scraper blade is hugged closely the inboard end wall setting of stoving intracavity, it has feed inlet, downside to open to dry the outer end wall upside of chamber and to have the discharge opening, it just corresponds to fire outer end wall of burning furnace feed inlet, discharge opening position are equallyd divide and do not are equipped with the passage, feed inlet, discharge opening inner are equallyd divide and do not are equipped with automatically controlled switch.

Compared with the prior art, the utility model has the advantages of as follows: the combustion furnace is provided with a combustion device which can realize manual regulation and control of the position of a combustion point, the working efficiency of the combustion furnace is improved, the movable installation of the combustion device is realized, the disassembly, the maintenance and the cleaning are convenient, the filtration and the derivation of combustion waste gas are realized by adopting a cylindrical filter frame, the timely mechanical cleaning of the filter frame is realized by a second scraper plate, the equipment shutdown maintenance and cleaning cost is reduced while the operation of equipment is ensured, the labor burden is reduced, the fuel of the combustion furnace is natural gas, air and waste gas, the waste gas generated in the fields of industrial production and the like is subjected to secondary combustion treatment, the combustible property of the waste gas is fully utilized while the waste gas combustion purification treatment is realized, the reutilization of waste resources is realized, the drying cavity can realize the drying and drying of wet materials, and the cleaning of the end wall at the inner side of the drying cavity can also be realized while the first scraper plate sti, the cleanliness in the stoving intracavity portion is ensured, the functionality of burning furnace is fired in the increase.

Drawings

Fig. 1 is a schematic view of the overall structure of a natural gas composite combustion furnace of the present invention;

FIG. 2 is a schematic view of the ignition stand;

fig. 3 is a schematic plan view of the position of the latch;

FIG. 4 is a schematic view of the lower end structure of the inner cavity of the combustion furnace body;

FIG. 5 is a schematic view of the transmission structure of the rotating shaft;

list of reference numerals: 1. a machine base; 2. a burner body; 3. a heated plate; 4. a boiler; 5. a combustion device; 6. a circular ring-shaped positioning frame; 7. a circular ring-shaped support frame; 8. an ignition frame; 9. an inflation hole; 10. an air duct; 11. an igniter; 12. an annular fixing frame; 13. a cylindrical partition plate; 14. a cylindrical filter frame; 15. an exhaust pipe; 16. a drying cavity; 17. an annular roller; 18. a first squeegee; 19. a second squeegee; 20. a clamping block; 21. a card slot; 22. a gas supply main pipe; 23. cleaning the rack; 24. a rotating shaft; 25. a guide vane; 26. a dial; 27. a drive gear; 28. a drive shaft; 29. a grooved wheel; 30. a transmission gear; 31. an arc-shaped notch; 32. a drive rod; 33. a drive pin; 34. a radial slot; 35. and locking the arc.

Detailed Description

Example 1: referring to fig. 1, 2, 3, 4, and 5, the natural gas composite combustion furnace provided by the present invention is now described, which includes a frame 1 and a combustion furnace body 2 disposed at the upper end of the frame 1, the combustion furnace body 2 is hollow cylindrical, a heated plate 3 is disposed at the middle side of the inner end of the combustion furnace body 2, a boiler 4 is disposed at the upper end of the heated plate 3, a combustion device 5 is disposed at the middle side of the inner bottom end of the combustion furnace body 2, the combustion device 5 is composed of a circular ring-shaped positioning frame 6, a circular ring-shaped supporting frame 7 with one end sleeved outside the circular ring-shaped positioning frame 6, an ignition frame 8 disposed at the other end of the circular ring-shaped supporting frame 7, an inflation hole 9 formed on the end wall of the ignition frame 8, an air duct 10 with one end connected with the inflation hole 9, and an igniter 11 disposed on the outer end wall of the ignition frame 8, an annular fixing frame 12 is disposed at the middle side of the lower end of the, the outer side of the upper end of the cylindrical partition plate 13 is provided with an exhaust port, the exhaust port is connected with an external exhaust pipe 15, the outer end wall of the cylindrical partition plate 13 is provided with a drying cavity 16 formed between the inner end walls of the combustion furnace body 2, an annular rolling groove is formed in the inner end wall of the drying cavity 16, an annular roller 17 is arranged in the annular rolling groove, the lower end of the annular roller 17 is uniformly and vertically provided with a first scraper 18, the lower end of the heated plate 3 is tightly attached to the inner end wall of the cylindrical filter rack 14, and a second scraper 19 is vertically arranged at the position of.

Example 2: referring to fig. 1, 2, 3 and 4, the natural gas composite combustion furnace provided by the present invention is now described, wherein the lower end of the frame 1 is uniformly and vertically provided with support legs, the middle side of the bottom end in the combustion furnace body 2 is provided with an annular positioning groove, the annular positioning frame 6 is vertically arranged, the inner side end wall of the annular positioning groove, the outer end wall of the two sides of the length direction of the annular positioning frame 6 and the inner end wall of one side of the length direction of the annular support frame 7 are respectively provided with a thread groove, the ignition frame 8 is hollow round table-shaped, the upper end of the ignition frame 8 is open and has an upper cross-sectional area larger than a lower cross-sectional area, and is arranged in an inverted trapezoid shape, the outer bottom end of the ignition frame 8 is provided with an igniter 11, the igniter 11 penetrates through the bottom end wall of the ignition frame 8 and extends into the inner cavity of the ignition frame 8, the outer end wall of the upper, the equal radian of 7 length direction opposite sides of ring shape support frame evenly opens and has draw-in groove 21, it includes natural gas inlet port, waste gas inlet port and air inlet port to aerify hole 9, radian such as 8 upside inner end walls of ignition frame evenly open has the natural gas inlet port, radian such as 8 middle side inner end walls of ignition frame evenly open has the waste gas inlet port, radian such as 8 downside inner end walls of ignition frame evenly open has the air inlet port, 1 lower extreme of frame is equipped with air main 22, air main 22 includes natural gas air main, waste gas air main and air main, 10 one end of air duct with aerify the hole 9 intercommunication, the other end is vertical to run through 1 inner chamber of frame and stretch out with air main 22 is linked together.

Example 3: referring to fig. 1, 4 and 5, the natural gas composite combustion furnace provided by the present invention is now described, wherein the top end of the cylindrical partition 13 is fixedly connected to the lower end of the annular fixing frame 12, the bottom end of the cylindrical partition 13 is fixedly connected to the inner bottom wall of the combustion furnace body 2, the cylindrical filter frame 14 is disposed inside the cylindrical partition 13, the lower end of the annular fixing frame 12 is provided with an annular chute, an annular slider is movably disposed in the annular chute, the lower end of the annular slider is fixedly disposed on the cylindrical filter frame 14, a gap is left between the bottom end of the cylindrical filter frame 14 and the inner bottom wall of the combustion furnace body 2, the bottom end of the cylindrical filter frame 14 has a uniform radian such as a bottom end, and is provided with a cleaning frame 23, the cleaning frame 23 is disposed along the caliber direction of the inner end of the cylindrical partition 13, the length of the cleaning frame 23 is smaller than the distance between the inner end wall of the, the length of the cleaning frame 23 is greater than the distance between the inner end wall of the cylindrical filter frame 14 and the outer end wall of the circular ring-shaped positioning frame 6, the bottom of the combustion furnace body 2 is provided with a bar-shaped slag discharging port, the machine base 1 corresponds to the position of the bar-shaped slag discharging port and is provided with a bar-shaped slag guiding port, the lower end of the machine base 1 is detachably provided with a slag collecting box body corresponding to the position of the bar-shaped slag guiding port, the bar-shaped slag discharging port is arranged along the length direction of the distance between the inner end wall of the cylindrical partition plate 13 and the outer end wall of the circular ring-shaped positioning frame 6, one end of the exhaust pipe 15 is communicated with the exhaust port, the other end of the exhaust pipe penetrates through the inner end wall of the combustion furnace body 2 and extends out, the middle side of the inner cavity of the air inlet end of the exhaust pipe 15 is vertically provided with a rotating shaft 24, the outside of the extending end of the upper side of the rotating shaft 24 is sleeved with a dial 26, and the outside of the extending end of the lower side is sleeved with a driving gear 27.

Example 4: referring to fig. 4 and 5, a transmission shaft 28 is vertically and movably disposed between an upper side extending end of the rotation shaft 24 and an outer end wall of the annular fixing frame 12, a grooved pulley 29 is sleeved outside the transmission shaft 28 and corresponding to a position of the driving plate 26, a transmission gear 30 is sleeved outside the transmission shaft 28 and corresponding to a position of the annular fixing frame 12, an arc-shaped recess 31 is formed at an edge end of the driving plate 26, a driving rod 32 is connected to a middle portion of an inner side end of the arc-shaped recess 31, a non-connecting end of the driving rod 32 is provided with a driving pin 33, radial grooves 34 are uniformly formed in the grooved pulley 29 in an equal radian manner, locking arcs 35 are respectively formed between outer side circumferential end walls of the grooved pulley 29 and positions located in the radial grooves 34, and the driving rod 32 and the radial grooves 34 are respectively designed along a radial direction of a horizontal cross, the equal radian of annular slider outside end wall is evenly opened there is the transmission tooth's socket, 12 outer end walls of annular mount just correspond drive gear 30 position division has the opening, the opening with the annular spout is linked together, drive gear 30 part stretches into in the opening, drive gear 30 outside teeth of a cogwheel with the transmission tooth's socket mesh transmission each other.

Example 5: referring to fig. 1, fig. 4, it is right now that the utility model provides a pair of natural gas composite combustion furnace explains, the annular rolling slot corresponds drive gear 27 position sets up, radian such as on 17 inner end walls of annular gyro wheel is evenly opened has the drive tooth's socket, the outside teeth of a cogwheel of drive gear 27 with the transmission of meshing each other of drive tooth's socket, first scraper blade 18 is hugged closely 16 inboard end wall settings in stoving chamber, 16 outer end walls upsides in stoving chamber are opened there is the feed inlet, the downside is opened there is the discharge opening, 2 outer end walls of furnace body and correspondence feed inlet, discharge opening position are equallyd divide and do not are equipped with the passage, feed inlet, discharge opening inner are equallyd divide and do.

The utility model discloses can also form new implementation mode with embodiment 1 combination with at least one in

embodiment

2, 3, 4, 5 among the technical characterstic.

The working principle is as follows: the movable mounting that the position was realized in the annular constant head tank was twisted through the thread groove to ring shape locating rack, realizes swing joint through the thread groove between ring shape locating rack and the ring shape support frame, and the detachable installation is realized in the draw-in groove to the ignition frame card was gone into through the fixture block card, and the position height of ring shape support frame can be regulated and control to realize the regulation and control of the height of ignition frame position. The gas supply main pipe and the gas guide pipe realize the leading-in combustion of natural gas, combustible waste gas and air, and the igniter is used for ignition combustion. The boiler is arranged above the heated plate, and the combustion device continuously provides heat to heat the boiler. The combustion device is characterized in that combustion waste gas is filtered through the cylindrical filter frame and is led out through the exhaust pipe, the combustion waste gas is led into the exhaust pipe to urge the guide vanes to rotate, the rotation of the guide vanes drives the rotating shaft to rotate, the rotating shaft drives the driving plate and the driving gear to rotate, and the driving plate rotates to enable the driving pin to slide along the length direction of the radial groove through the driving rod, so that the grooved wheel is driven to rotate intermittently. The grooved pulley rotates to drive the transmission shaft to rotate, the transmission shaft rotates to drive the transmission gear to rotate, gear teeth outside the transmission gear and the transmission tooth socket are meshed with each other for transmission to drive the annular sliding block to intermittently rotate, and the cylindrical filter rack intermittently rotates due to the rotation of the annular sliding block. The clearance that the frame was crossed to the cylindric is realized to the second scraper blade, and the rotation that the frame was crossed to the cylindric drives the motion of clearance frame, and the clearance of the interior bottom end wall of burner body is realized to the clearance frame, realizes that the clearance of the cylindric frame of crossing filters debris, and the debris that the frame was crossed to the cylindric is filtered unloads the sediment mouth through the bar, the discharge of bar slag guide mouth, and the collection that filters debris is realized to the collection sediment box body that is equipped with. The stoving intracavity can be used to the stoving drying of damp material etc, thereby drive the outside teeth of a cogwheel of drive gear and the transmission of meshing each other of drive tooth's socket and drive the annular gyro wheel and rotate, and the rotation of annular gyro wheel drives first scraper blade circular motion, and first scraper blade can also realize the clearance of the inboard end wall in stoving chamber when playing material stirring stoving, and damp material etc. are discharged through the leading-in of feed inlet, discharge opening.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. A natural gas composite combustion furnace comprises a base (1) and a combustion furnace body (2) arranged at the upper end of the base (1), and is characterized in that the combustion furnace body (2) is hollow and cylindrical, a heated plate (3) is arranged at the middle side of the inner end of the combustion furnace body (2), a boiler (4) is arranged at the upper end of the heated plate (3), a combustion device (5) is arranged at the middle side of the inner bottom end of the combustion furnace body (2), the combustion device (5) consists of a circular ring-shaped positioning frame (6), a circular ring-shaped supporting frame (7) with one end sleeved outside the circular ring-shaped positioning frame (6), an ignition frame (8) arranged at the other end of the circular ring-shaped supporting frame (7), an inflation hole (9) formed in the end wall of the ignition frame (8), a gas guide tube (10) with one end connected with the inflation hole (9), and an igniter (11) arranged on the outer end wall of the ignition frame (8), and a, annular mount (12) lower extreme is vertical to be equipped with cylindric baffle (13) and cylindric filter stand (14), open cylindric baffle (13) upper end outside has the gas vent just external blast pipe (15) of gas vent, cylindric baffle (13) outer end wall with form stoving chamber (16) between burner body (2) inner end wall, it has annular rolling groove just to open on stoving chamber (16) inner end wall the annular rolling inslot is equipped with annular gyro wheel (17), the even vertical first scraper blade (18) that is equipped with of annular gyro wheel (17) lower extreme, it just hugs closely to receive hot plate (3) lower extreme the vertical second scraper blade (19) that is equipped with in cylindric filter stand (14) inner wall position.

2. The natural gas composite combustion furnace as claimed in claim 1, wherein the lower end of the frame (1) is uniformly and vertically provided with support legs, the middle part of the inner bottom end of the combustion furnace body (2) is provided with an annular positioning groove, the annular positioning frame (6) is vertically arranged, the end wall of the inner side of the annular positioning groove, the outer end wall of the two sides of the length direction of the annular positioning frame (6) and the inner end wall of the one side of the length direction of the annular supporting frame (7) are respectively provided with a thread groove, the ignition frame (8) is hollow and truncated cone-shaped, the upper end of the ignition frame (8) is open and has a cross section area larger than that of the lower end thereof and is arranged in an inverted trapezoid shape, the outer bottom end of the ignition frame (8) is provided with an igniter (11), an ignition head of the igniter (11) penetrates through the bottom end wall of the ignition frame (8) and extends into the inner cavity of the ignition frame (8), the outer end wall of the, the equal radian of ring shape support frame (7) another side of length direction evenly opens and has draw-in groove (21), aerify hole (9) and include natural gas inlet port, waste gas inlet port and air inlet port, radian such as the inner end wall of ignition frame (8) upside evenly opens and has the natural gas inlet port, radian such as the inner end wall of ignition frame (8) downside evenly opens and has the air inlet port, frame (1) lower extreme is equipped with air main (22), air main (22) include natural gas air main, waste gas air main and air main, air duct (10) one end with aerify hole (9) intercommunication, the other end is vertical run through frame (1) inner chamber stretch out with air main (22) are linked together.

3. The natural gas composite combustion furnace as claimed in claim 1, wherein the top end of the cylindrical partition (13) is fixedly connected with the lower end of the annular fixing frame (12), the bottom end of the cylindrical partition is fixedly connected with the inner bottom end wall of the combustion furnace body (2), a cylindrical filter frame (14) is arranged inside the cylindrical partition (13), the lower end of the annular fixing frame (12) is provided with an annular chute, an annular slide block is movably arranged in the annular chute, the lower end of the annular slide block is fixedly arranged on the cylindrical filter frame (14), a gap is left between the bottom end of the cylindrical filter frame (14) and the inner bottom end wall of the combustion furnace body (2), the bottom end of the cylindrical filter frame (14) is uniformly provided with cleaning frames (23) at equal radians, the cleaning frames (23) are arranged along the caliber direction of the inner end of the cylindrical partition (13), and the length of the cleaning frames (23) is smaller than that of the inner end wall of the cylindrical partition (13) and the annular The distance length between the outer end wall, clearance frame (23) length is greater than the distance length between the inner end wall of cylindric filter frame (14) and the outer end wall of ring shape locating rack (6), burner body (2) bottom is opened the bar and is unloaded the cinder notch, frame (1) corresponds the strip is unloaded the cinder notch position and is opened there is the bar and leads the cinder notch, frame (1) lower extreme just corresponds the detachable collection sediment box body that is equipped with in strip guide cinder notch position, the strip is unloaded the cinder notch and is followed the distance length direction between the inner end wall of cylindric baffle (13) and the outer end wall of ring shape locating rack (6) is seted up, blast pipe (15) one end with the gas vent intercommunication, the other end run through burner body (2) inner end wall and stretch out, the vertical axis of rotation (24) that is equipped with of side in blast pipe (15) inlet end inner chamber, both sides of axis of rotation (24) length direction all move about to run through the inner end wall in, the exhaust pipe (15) is internally provided with guide vanes (25) which are uniformly arranged outside the rotating shaft (24) at equal radian, a drive plate (26) is sleeved outside the extending end of the upper side of the rotating shaft (24), and a drive gear (27) is sleeved outside the extending end of the lower side.

4. The natural gas composite combustion furnace as claimed in claim 3, wherein a transmission shaft (28) is vertically and movably arranged between an upper side extending end of the rotating shaft (24) and an outer end wall of the annular fixing frame (12), a grooved wheel (29) is sleeved outside the transmission shaft (28) and corresponding to the dial plate (26), a transmission gear (30) is sleeved outside the transmission shaft (28) and corresponding to the annular fixing frame (12), an arc-shaped notch (31) is formed at an edge end of the dial plate (26), a driving rod (32) is connected to the middle part of an inner side end of the arc-shaped notch (31), a non-connecting end of the driving rod (32) is provided with a driving pin (33), radial grooves (34) are uniformly formed in the grooved wheel (29) in an equal radian manner, and locking arcs (35) are respectively formed between outer side circumferential end walls of the grooved wheel (29) and positions, drive bar (32), radial groove (34) are equallyd divide and are followed drive plate (26), horizontal cross section radius direction design of sheave (29), the isoplanar evenly opens has the transmission tooth's socket on the annular slider outside end wall, annular mount (12) outer end wall just corresponds drive gear (30) position is opened there is the opening, the opening with the annular chute is linked together, drive gear (30) part is stretched into in the opening, drive gear (30) outside teeth of a cogwheel with the transmission tooth's socket meshes the transmission each other.

5. The natural gas composite combustion furnace as claimed in claim 3, wherein the annular roller groove is arranged corresponding to the position of the driving gear (27), the inner end wall of the annular roller (17) is uniformly provided with driving tooth grooves with equal radian, gear teeth outside the driving gear (27) and the driving tooth grooves are in meshing transmission mutually, the first scraper (18) is arranged close to the inner end wall of the drying cavity (16), the upper side of the outer end wall of the drying cavity (16) is provided with a feeding hole, the lower side of the outer end wall of the combustion furnace body (2) is provided with a discharging hole, the outer end wall of the combustion furnace body (2) is provided with a material guide pipe corresponding to the positions of the feeding hole and the discharging hole, and the inner ends of the feeding hole and the discharging hole are provided with.