阅读说明：本技术 一种高效焚烧清洁焚烧生活垃圾的燃烧炉 (Combustion furnace for efficiently incinerating clean incineration of household garbage ) 是由 不公告发明人 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种高效焚烧清洁焚烧生活垃圾的燃烧炉,它包括工作台(1)、设置于工作台(1)下方的焚烧装置(2)、设置于工作台(1)顶部的换热装置(3)和布袋除尘器(4),所述布袋除尘器(4)的底部设置有贯穿工作台(1)的尾气进口端(5),所述引风机(9)的出口与空气加热器(8)的入口端经管卡连接；换热装置(3)包括水槽(17)、设置于水槽(17)内的转筒(18),水槽(17)固设于工作台(1)的台面上,空心轴A(21)和空心轴B(22)分别旋转安装于水槽(17)的左右侧壁上。本发明的有益效果是：提高换热效率、能够充分利用尾气热量、减轻工人劳动强度、焚烧垃圾彻底、操作简单。(The invention discloses a combustion furnace for efficiently incinerating, cleaning and incinerating domestic garbage, which comprises a workbench (1), an incinerating device (2) arranged below the workbench (1), a heat exchange device (3) arranged at the top of the workbench (1) and a bag-type dust collector (4), wherein the bottom of the bag-type dust collector (4) is provided with a tail gas inlet end (5) penetrating through the workbench (1), and the outlet of an induced draft fan (9) is connected with the inlet end of an air heater (8) through a pipe; the heat exchange device (3) comprises a water tank (17) and a rotary drum (18) arranged in the water tank (17), the water tank (17) is fixedly arranged on the table top of the workbench (1), and a hollow shaft A (21) and a hollow shaft B (22) are respectively rotatably arranged on the left side wall and the right side wall of the water tank (17). The invention has the beneficial effects that: the heat exchange efficiency is improved, the heat of the tail gas can be fully utilized, the labor intensity of workers is reduced, the garbage is thoroughly incinerated, and the operation is simple.)

1. The utility model provides a high-efficient burning furnace that burns clean incineration domestic waste which characterized in that: it includes workstation (1), sets up in burning device (2) of workstation (1) below, sets up in heat transfer device (3) and sack cleaner (4) at workstation (1) top, the bottom of sack cleaner (4) is provided with tail gas entrance point (5) that run through workstation (1), and the side of sack cleaner (4) is provided with tail gas exit end (6), burning device (2) is including furnace body (7), air heater (8) and draught fan (9), be provided with grate (10) that incline to the declivity in furnace body (7), the bottom of furnace body (7) has set firmly air inlet storehouse (11), and the top of furnace body (7) is provided with rubbish dog-house (12) and exhaust pipe (13), and the top of exhaust pipe (13) is managed with tail gas entrance point (5) card, and the filter screen (14) have set firmly in exhaust pipe (13), an air cylinder (15) is fixedly mounted on the outer cylindrical surface of the smoke exhaust pipe (13), a piston rod of the air cylinder (15) penetrates through the smoke exhaust pipe (13) and extends into the smoke exhaust pipe (13), a scraping plate (16) is fixedly arranged at the extending end of the piston rod, the scraping plate (16) is positioned below the filter screen (14), the upper edge of the scraping plate (16) is in contact with the bottom surface of the filter screen (14), the outlet of the induced draft fan (9) is connected with the inlet end of the air heater (8) through a pipe card, and the outlet of the air heater (8) is connected with the bottom of the air inlet bin (11) through a pipe card;

the heat exchange device (3) comprises a water tank (17) and a rotary drum (18) arranged in the water tank (17), the water tank (17) is fixedly arranged on the table top of the workbench (1), a left conical drum (19) and a right conical drum (20) are respectively welded at the left end and the right end of the rotary drum (18), hollow shafts A (21) and B (22) are respectively welded on the small end faces of the left conical drum (19) and the right conical drum (20), the hollow shafts A (21) and B (22) are respectively rotatably arranged on the left side wall and the right side wall of the water tank (17) and extend to the outside of the water tank (17), rotary joints A (23) and B (24) are respectively connected at the other ends of the hollow shafts A (21) and B (22), a plurality of blades (25) are welded on the cylindrical surface of the rotary drum (18) and in the circumferential direction of the rotary joints A (23), and the other end of the rotary joints A (23) is connected, the heat exchange device (3) further comprises a motor I (26) fixedly arranged on the table top of the workbench (1), and a transmission device is arranged between an output shaft of the motor I (26) and the hollow shaft A (21); the rotary drum is characterized in that flange plates (37) are welded at two ends of the rotary drum (18), a plurality of branch pipes (38) distributed around the circumference of the flange plates (37) are welded between the two flange plates (37), the branch pipes (38) are in contact with the inner wall of the rotary drum (18), and the left end and the right end of each branch pipe (38) are respectively communicated with a left conical cylinder (19) and a right conical cylinder (20).

2. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the other end of the rotary joint A (23) is connected with a tail gas outlet end (6) through a high-temperature resistant pipeline (27).

3. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the transmission device comprises a driving gear (28), a driven gear (29) and a speed reducer (30), wherein the speed reducer (30) is fixedly installed on the table top of the workbench (1), an input shaft of the speed reducer (30) is connected with an output shaft of the motor I (26) through a coupler, an output shaft is arranged at the top of the speed reducer (30), the driving gear (28) is installed on an output shaft of the speed reducer (30), the driven gear (29) is installed on a hollow shaft A (21), and the driven gear (29) is meshed with the driving gear (28).

4. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the hollow shaft A (21), the hollow shaft B (22), the left conical cylinder (19), the right conical cylinder (20) and the rotating cylinder (18) are coaxially arranged.

5. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: bearing blocks (31) are fixedly arranged on the outer walls of the left side plate and the right side plate of the water tank (17), and the hollow shaft A (21) and the hollow shaft B (22) are rotatably arranged in the two bearing blocks (31) respectively.

6. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the furnace body (7) is internally provided with a cylinder (32) in a rotating mode on the front side wall and the rear side wall, the cylinder (32) is positioned above the fire grate (10), a plurality of rotating plates (33) are welded on the cylindrical surface of the cylinder (32) in the circumferential direction of the cylinder, and the rotating plates (33) are axially arranged along the cylinder (32).

7. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the furnace body is characterized in that a motor II (34) is fixedly mounted on the rear end face of the furnace body (7), and an output shaft of the motor II (34) penetrates through the furnace body (7) and is connected with a rotating shaft of the cylinder (32) through a coupler.

8. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the bottom of furnace body (7) and workstation (1) all sets firmly a plurality of supporting legs that support in subaerial.

9. The combustion furnace for efficiently incinerating and cleaning incinerated domestic garbage according to claim 1, wherein: the slag discharging port (35) is formed in the right end of the furnace body (7), the combustor (36) is arranged on the right outer wall of the furnace body (7), and a flame outlet of the combustor (36) faces the fire grate (10).

Technical Field

The invention relates to the technical field of household garbage incineration, in particular to a combustion furnace for efficiently incinerating, cleaning and incinerating household garbage.

Background

At present, with the rapid development of economic society, the living of residents is steadily improved, the yield of household garbage (especially urban household garbage) is sharply increased, and the garbage disposal requirement cannot be met by a simple garbage landfill mode, so most of household garbage at present is mainly incinerated by a garbage incinerator. When the garbage incinerator is burning domestic waste, a large amount of tail gas is discharged from the chimney, and because a large amount of heat is carried in the tail gas, in order to utilize the heat on the tail gas, workers utilize the tail gas to heat the tap water, and the tap water after heating can be supplied to the workers to use, thereby making full use of the heat of the tail gas.

Current recycle tail gas thermal device includes the cell body, set up the coil pipe in the cell body, the splendid attire has the running water that floods the coil pipe in the cell body, the both ends mouth of coil pipe runs through the lateral wall setting about the cell body respectively, a port of coil pipe and the inlet tube pipe piping connection of absorption tower, another port of coil pipe is connected through both ends with the exhaust pipe that burns burning furnace, when waste incinerator is burning domestic waste, the exhaust tail gas of following chimney department discharge is in order through the exhaust pipe, a port of coil pipe, the coil pipe, another port of coil pipe enters into in the absorption tower, wherein tail gas is when the coil pipe of flowing through, tail gas and coil pipe heat exchange take place, thereby heat the running water in the cell body, the running water after the heating alright. However, the heat of tail gas is big, even increase the length of coil pipe, the tail gas that flows still contains the waste heat, causes the tail gas heat not by make full use of, and the main reason is that the pipe diameter of coil pipe is big, causes the tail gas in the coil pipe and the interior running water area of contact of cell body little to heat exchange efficiency has been reduced.

In addition, when utilizing the tail gas heat, need utilize the sack cleaner in order to detach the dust in the tail gas, however, the discharge amount of dust is big, can cause the sack in the sack cleaner to stop up in the short time, leads to the sack to normally filter the dust that carries in the tail gas, in order to solve the frequent phenomenon of blockking up of sack in the sack cleaner, workman and people need frequent change the sack, this is undoubtedly that the intensity of labour who has increased the workman. In addition, when the garbage incinerator is used for incinerating household garbage, a large amount of household garbage is accumulated on the grate, so that the contact area of the household garbage and air is small, and the household garbage is further not completely incinerated. Therefore, a combustion furnace for efficiently burning, cleaning and incinerating domestic garbage, which can improve heat exchange efficiency, fully utilize tail gas heat, reduce labor intensity of workers and thoroughly incinerate garbage, is urgently needed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the combustion furnace for efficiently burning and cleaning the household garbage, which has the advantages of compact structure, improved heat exchange efficiency, capability of fully utilizing the heat of tail gas, reduced labor intensity of workers, thorough garbage burning and simple operation.

The purpose of the invention is realized by the following technical scheme: a combustion furnace for efficiently incinerating, cleaning and incinerating domestic garbage comprises a workbench, an incineration device arranged below the workbench, a heat exchange device arranged at the top of the workbench and a bag-type dust remover, wherein a tail gas inlet end penetrating through the workbench is arranged at the bottom of the bag-type dust remover, a tail gas outlet end is arranged on the side surface of the bag-type dust remover, the incineration device comprises a furnace body, an air heater and a draught fan, a fire grate inclining downwards towards the right is arranged in the furnace body, an air inlet bin is fixedly arranged at the bottom of the furnace body, a garbage feeding port and a smoke exhaust pipe are arranged at the top of the furnace body, the top of the smoke exhaust pipe is connected with the tail gas inlet end through a pipe connector, a filter screen is fixedly arranged in the smoke exhaust pipe, an air cylinder is fixedly arranged on the outer cylindrical surface of the smoke exhaust pipe, the upper edge of the scraping plate is contacted with the bottom surface of the filter screen, the outlet of the induced draft fan is connected with the inlet end of the air heater through a pipe card, and the outlet of the air heater is connected with the bottom of the air inlet bin through a pipe card;

the heat exchange device comprises a water tank and a rotary drum arranged in the water tank, the water tank is fixedly arranged on the table top of the workbench, a left conical drum and a right conical drum are welded at the left end and the right end of the rotary drum respectively, a hollow shaft A and a hollow shaft B are welded on the small end faces of the left conical drum and the right conical drum respectively, the hollow shaft A and the hollow shaft B are rotatably arranged on the left side wall and the right side wall of the water tank respectively and extend out of the water tank, the other ends of the hollow shaft A and the hollow shaft B are connected with a rotary joint A and a rotary joint B respectively, a plurality of blades are welded on the cylindrical surface of the rotary drum and in the circumferential direction of the cylindrical surface, the other end of the rotary joint A is connected with a tail gas outlet end through a pipe card, the heat exchange device; the rotary drum is characterized in that the two ends of the rotary drum are welded with flange plates, a plurality of branch pipes distributed around the circumference of the flange plates are welded between the two flange plates, the branch pipes are in contact with the inner wall of the rotary drum, and the left end and the right end of each branch pipe are communicated with the left conical cylinder and the right conical cylinder respectively.

The other end of the rotary joint A is connected with the tail gas outlet end through a high-temperature resistant pipeline.

The transmission device comprises a driving gear, a driven gear and a speed reducer, the speed reducer is fixedly installed on the table top of the workbench, an input shaft of the speed reducer is connected with an output shaft of the motor I through a coupler, an output shaft is arranged at the top of the speed reducer, the driving gear is installed on the output shaft of the speed reducer, the driven gear is installed on the hollow shaft A, and the driven gear is meshed with the driving gear.

The hollow shaft A, the hollow shaft B, the left conical cylinder, the right conical cylinder and the rotary cylinder are coaxially arranged.

Bearing blocks are fixedly arranged on the outer walls of the left side plate and the right side plate of the water tank, and the hollow shaft A and the hollow shaft B are rotatably arranged in the two bearing blocks respectively.

The furnace body is internally provided with a cylinder body which is rotatably arranged on the front side wall and the rear side wall of the furnace body, the cylinder body is arranged above the fire grate, a plurality of rotating plates are welded on the cylindrical surface of the cylinder body and around the circumferential direction of the cylinder body, and the rotating plates are axially arranged along the cylinder body.

And a motor II is fixedly mounted on the rear end face of the furnace body, and an output shaft of the motor II penetrates through the furnace body and is connected with a rotating shaft of the barrel through a coupling.

The bottom of furnace body and workstation all sets firmly a plurality of supporting legs that support in subaerial.

The slag discharging port is formed in the right end portion of the furnace body, the combustor is arranged on the right outer wall of the furnace body, and a flame outlet of the combustor is arranged towards the fire grate.

The invention has the following advantages:

1. the furnace body is internally provided with a cylinder body in a rotating mode on the front side wall and the rear side wall of the furnace body, the cylinder body is positioned above the fire grate, a plurality of rotating plates are welded on the cylindrical surface of the cylinder body in the circumferential direction of the cylinder body, the rotating plates are arranged along the axial direction of the cylinder body, when the domestic garbage is driven to the cylinder body by the fire grate, the domestic garbage is turned over by the rotating plates on the cylinder body, along with the continuous movement of the domestic garbage, flame sprayed by a burner burns the domestic garbage, and the burned furnace slag is discharged to the outside from a slag discharge; because the rotating plate on the barrel body turns the household garbage, the contact area between the household garbage and hot air is increased, and the household garbage can be thoroughly burnt when being burnt in a burning area.

2. A filter screen is fixedly arranged in a smoke exhaust pipe, an air cylinder is fixedly arranged on the outer cylindrical surface of the smoke exhaust pipe, a piston rod of the air cylinder penetrates through the smoke exhaust pipe and extends into the smoke exhaust pipe, a scraper blade is fixedly arranged on the extending end of the piston rod and is positioned below the filter screen, the upper edge of the scraper blade is contacted with the bottom surface of the filter screen, when tail gas flows through the filter screen, the filter screen intercepts large particle dust carried in the tail gas below, the tail gas and small particle dust sequentially pass through meshes of the filter screen and a tail gas inlet end to enter a bag-type dust collector, and a bag in the bag-type dust collector filters the small particle dust carried in the tail gas, so that the dust is thoroughly removed; because the filter screen filters the large granule impurity in the tail gas in advance, and the mesh that the sack can be covered to the tiny particle dust need long time, consequently need not frequent change sack of workman, very big reduction workman's intensity of labour. In addition, after the lower surface of the filter screen is covered with a large amount of dust, the meshes of the filter screen are shielded, tail gas is prevented from passing through, a worker only needs to operate the air cylinder to enable the piston rod of the air cylinder to stretch out at the moment, the piston rod drives the scraper blade to move, the scraper blade scrapes off the attached dust completely at one time in the movement process, and the tail gas is ensured to be discharged smoothly from the furnace body.

3. The heat exchange device comprises a rotary drum, a tail gas outlet end, a motor I, a transmission device and a heat exchange device, wherein a plurality of blades are welded on the cylindrical surface of the rotary drum in the circumferential direction of the rotary drum, the other end of the rotary joint A is connected with the tail gas outlet end through a pipe card, the motor I is fixedly arranged on the table surface of a workbench, and the transmission device is arranged between an output shaft of the motor I and a; the rotary drum is characterized in that flange plates are welded at two ends of the rotary drum, a plurality of branch pipes distributed around the circumference of the flange plates are welded between the two flange plates, the branch pipes are in contact with the inner wall of the rotary drum, and the left end and the right end of each branch pipe are respectively communicated with the left conical cylinder and the right conical cylinder; when the rotating drum drives the blades to rotate, the blades stir water in the water tank, when tail gas flows through the branch pipes, the tail gas transfers heat to the branch pipes, the branch pipes transfer the heat to the rotating drum, the rotating drum transfers the heat to water, so that heat exchange is realized, the heated water can be used by workers, and the heat on the tail gas is utilized; because the branch pipe shunts tail gas, increased the area of contact of heat and running water on the tail gas to improved heat exchange efficiency, the blade stirs the water in the basin simultaneously, has further increased the area of contact of heat on water and the tail gas, thereby very big improvement tail gas heat exchange efficiency, realized can make full use of the tail gas heat.

Drawings

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

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic view of the structure of an incineration apparatus;

FIG. 4 is a schematic main section view of FIG. 3;

FIG. 5 is a schematic view of the installation of the cylinder and the furnace body;

FIG. 6 is a schematic structural diagram of a heat exchange device;

FIG. 7 is a schematic main section view of FIG. 6;

FIG. 8 is a schematic cross-sectional view A-A of FIG. 7;

in the figure, 1-workbench, 2-incinerator, 3-heat exchanger, 4-bag dust collector, 5-tail gas inlet end, 6-tail gas outlet end, 7-furnace body, 8-air heater, 9-draught fan, 10-fire grate, 11-air inlet bin, 12-garbage feed inlet, 13-smoke exhaust pipe, 14-filter screen, 15-cylinder, 16-scraper, 17-water tank, 18-rotary drum, 19-left conical drum, 20-right conical drum, 21-hollow shaft A, 22-hollow shaft B, 23-rotary joint A, 24-rotary joint B, 25-blade, 26-motor I, 27-high temperature resistant pipeline, 28-driving gear, 29-driven gear, 30-speed reducer, 31-bearing seat, 32-cylinder, 33-rotating plate, 34-motor II, 35-slag discharge port, 36-burner, 37-flange plate, 38-branch pipe.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in figures 1-4, a high-efficient burning furnace that burns clean incineration domestic waste, it includes workstation 1, sets up in the incineration device 2 of workstation 1 below, sets up in heat transfer device 3 and the sack cleaner 4 at workstation 1 top, the bottom of sack cleaner 4 is provided with the tail gas entrance point 5 that runs through workstation 1, and the side of sack cleaner 4 is provided with tail gas exit end 6, incineration device 2 includes furnace body 7, air heater 8 and draught fan 9, the bottom of furnace body 7 and workstation 1 all sets firmly a plurality of supporting legs that support in subaerial. The utility model discloses a garbage incinerator, including furnace body 7, exhaust pipe 13, tail gas inlet end 5, filter screen 14, air inlet bin 11, air exhaust pipe 13, air inlet end 12, draught fan 9, air heater 8, air inlet bin 11, exhaust pipe 13, fixed mounting has a cylinder 15 on the outer cylinder, the piston rod of cylinder 15 runs through exhaust pipe 13 and stretches into in exhaust pipe 13, the extension of piston rod is served and is set firmly scraper blade 16, scraper blade 16 is located filter screen 14 below, the top edge of scraper blade 16 contacts with the basal surface of filter screen 14, the export of draught fan 9 is connected with air heater 8's entry end through the pipe card, air heater 8's export is connected with air inlet bin 11's bottom through the pipe card.

As shown in fig. 6 to 8, the heat exchanging device 3 includes a water tank 17 and a rotating drum 18 disposed in the water tank 17, the water tank 17 is fixedly disposed on a table top of the workbench 1, a left conical drum 19 and a right conical drum 20 are respectively welded at left and right ends of the rotating drum 18, hollow shafts a21 and B22 are respectively welded on small end surfaces of the left conical drum 19 and the right conical drum 20, the hollow shafts a21, B22, the left conical drum 19, the right conical drum 20 and the rotating drum 18 are coaxially disposed, the hollow shafts a21 and B22 are respectively rotatably mounted on left and right side walls of the water tank 17 and extend outside the water tank 17, rotary joints a23 and B24 are respectively connected at the other ends of the hollow shafts a21 and B22, a plurality of blades 25 are welded on a cylindrical surface of the rotating drum 18 and around a circumferential direction thereof, the other end of the rotary joint a23 is connected with the tail gas outlet end 6 via a pipe, the heat exchanging device 3 further includes a motor I26 fixedly mounted on, be provided with transmission between motor I26's output shaft and hollow shaft A21, transmission includes driving gear 28, driven gear 29 and reduction gear 30, reduction gear 30 fixed mounting is on the mesa of workstation 1, and the input shaft of reduction gear 30 and motor I26's output shaft pass through the coupling joint, and the top of reduction gear 30 is provided with the output shaft, and installs driving gear 28 on the output shaft of reduction gear 30, driven gear 29 is installed on hollow shaft A21, and driven gear 29 and driving gear 28 mesh. (ii) a The flange plates 37 are welded at two ends of the rotary drum 18, a plurality of branch pipes 38 distributed around the circumference of the flange plates 37 are welded between the two flange plates 37, the branch pipes 38 are in contact with the inner wall of the rotary drum 18, and the left end and the right end of each branch pipe 38 are respectively communicated with the left conical drum 19 and the right conical drum 20.

The other end of the rotary joint A23 is connected with the tail gas outlet end 6 through a high temperature resistant pipeline 27. Bearing seats 31 are fixedly arranged on the outer walls of the left side plate and the right side plate of the water tank 17, and the hollow shaft A21 and the hollow shaft B22 are rotatably arranged in the two bearing seats 31 respectively. The furnace body 7 is internally provided with a cylinder 32 in a rotating way on the front side wall and the rear side wall, the cylinder 32 is positioned above the fire grate 10, a plurality of rotating plates 33 are welded on the cylindrical surface of the cylinder 32 in the circumferential direction, and the rotating plates 33 are axially arranged along the cylinder 32.

As shown in fig. 1 and 5, a motor II34 is fixedly mounted on the rear end surface of the furnace body 7, and an output shaft of the motor II34 penetrates through the furnace body 7 and is connected with the rotating shaft of the cylinder 32 through a coupling.

The working process of the invention is as follows:

s1, throwing a certain amount of domestic garbage into the furnace body 7 through the garbage feeding port 12, and conveying the domestic garbage to the slag discharging port 35 by the grate 10; meanwhile, a worker turns on the burner 36, the draught fan 9 and the motor II34, the draught fan 9 sucks outside air into the air heater 8, the air heater 8 heats the air, and the heated air enters the furnace body 7 through the air inlet bin 11 to be used as combustion-supporting gas for burning garbage; the motor II34 drives the rotating drum 18 to rotate, and further drives the rotating plate 33 to rotate;

s2, when the domestic garbage is driven to the cylinder 32 by the fire grate 10, the rotating plate 33 on the cylinder 32 turns the domestic garbage open, the flame sprayed by the burner 36 burns the domestic garbage along with the continuous movement of the domestic garbage, and the burned slag is discharged to the outside from the slag discharge port 35; the rotating plate 33 on the cylinder 32 turns the household garbage open, so that the contact area of the household garbage and hot air is increased, and the household garbage can be thoroughly burnt when being burnt in a burning area;

s3, the tail gas generated by combustion in the step S2 flows out of the smoke exhaust pipe 13, when the tail gas flows through the filter screen 14, the filter screen 14 intercepts large particle dust carried in the tail gas below, the tail gas and small particle dust sequentially pass through the meshes of the filter screen 14 and the tail gas inlet end 5 and enter the bag-type dust collector 4, and a bag in the bag-type dust collector 4 filters small particle dust carried in the tail gas, so that the dust is completely removed; since the filter screen 14 filters large-particle impurities in the tail gas in advance, and the small-particle dust can cover the meshes of the cloth bag for a long time, the cloth bag does not need to be frequently replaced by workers, and the labor intensity of the workers is greatly reduced;

s4, the high-temperature tail gas with dust filtered in the step S3 sequentially passes through the tail gas outlet end 6, the high-temperature resistant pipeline 27, the rotary joint A23, the inner cavity of the hollow shaft A21, the left conical cylinder 19, one port of the branch pipe 38, the other port of the branch pipe 38 and the right conical cylinder 20 and finally flows out from the rotary joint B24, meanwhile, a worker turns on the motor I26, the torque of the motor I26 is decelerated by the decelerator 30 to drive the driving gear 28 to rotate, the driving gear 28 drives the driven gear 29 to rotate, the driven gear 29 drives the hollow shaft A21 to rotate around the axis of the hollow shaft A21, the hollow shaft A21 drives the rotary cylinder 18 to rotate, the rotary cylinder 18 drives the blades 25 to rotate, the blades 25 stir the water in the water tank 17, when the tail gas passes through the branch pipe 38, the tail gas transfers heat to the branch pipe 38, the heat to the rotary cylinder 18, the rotary, thereby utilizing the heat on the tail gas; the branch pipe 38 divides the tail gas, so that the contact area between heat on the tail gas and tap water is increased, the heat exchange efficiency is improved, meanwhile, the blades 25 stir water in the water tank 17, the contact area between the water and the heat on the tail gas is further increased, the heat exchange efficiency of the tail gas is greatly improved, and the heat on the tail gas can be fully utilized;

s5, after working for a period of time, after the lower surface of the filter screen 14 is covered with a large amount of dust, the meshes of the filter screen 14 are shielded to prevent the tail gas from passing through, at the moment, a worker only needs to operate the air cylinder 15 to extend the piston rod of the air cylinder, the piston rod drives the scraper 16 to move, the scraper 16 scrapes off all the attached dust at one time in the moving process, and the tail gas is ensured to be smoothly discharged from the furnace body 7.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.