阅读说明：本技术 一种用于废气处理功能的环保型炼钢炉 (Environment-friendly steel-making furnace for waste gas treatment function ) 是由 高鹏 于 2021-08-18 设计创作，主要内容包括：本发明提供一种用于废气处理功能的环保型炼钢炉,包括支撑机构；所述支撑机构顶部左侧固定设置有传动机构；支撑机构和传动机构顶部通过连接管道相连通；所述连接管道包括有管道主体、从动轴、连通管、收集箱、锥齿轮组和转动连接凸起,管道主体内部轴心处转动连接有一根从动轴。连接外壳和挡板的设置,有利于提高炼钢炉的实用性,通过过滤网的初步过滤,再通过雾化器雾化后的水雾由主连接管分散到环形管的内部并喷出进行二次处理,二次处理的废气进入到连接外壳内部,因过滤板与挡板配合形成双通道,进而提高滤芯的使用率和废气处理效果,同时增加了滤芯的使用时间降低了滤芯的过滤负担,连接外壳的双通道的设置进一步提高了滤芯的利用率。(The invention provides an environment-friendly steel-making furnace with a waste gas treatment function, which comprises a supporting mechanism; a transmission mechanism is fixedly arranged on the left side of the top of the supporting mechanism; the top parts of the supporting mechanism and the transmission mechanism are communicated through a connecting pipeline; the connecting pipeline comprises a pipeline main body, a driven shaft, a communicating pipe, a collecting box, a bevel gear set and a rotary connecting bulge, wherein the driven shaft is rotatably connected to the axis inside the pipeline main body. Connect the setting of shell and baffle, be favorable to improving the practicality of steel-making stove, prefiltration through the filter screen, the inside and the blowout of toroidal tube are dispersed by main connecting pipe to the water smoke after the rethread atomizer atomizing and carry out secondary treatment, secondary treatment's waste gas enters into inside the connection shell, because of filter and baffle cooperation formation binary channels, and then improve the rate of utilization and the exhaust-gas treatment effect of filter core, the live time that has increased the filter core simultaneously has reduced the filtration burden of filter core, the binary channels of connection shell set up the utilization ratio that has further improved the filter core.)

1. An environment-friendly steelmaking furnace for waste gas treatment function, which is characterized in that: comprises a supporting mechanism (1); a transmission mechanism (3) is fixedly arranged on the left side of the top of the supporting mechanism (1); the supporting mechanism (1) is communicated with the top of the transmission mechanism (3) through a connecting pipeline (2); the connecting pipeline (2) comprises a pipeline main body (201), a driven shaft (202), a communicating pipe (203), a collecting box (204) and a rotary connecting bulge (206), wherein the driven shaft (202) is rotatably connected to the axis inside the pipeline main body (201), the rotary connecting bulge (206) is arranged on the left side and the side inside the pipeline main body (201), the communicating pipe (203) is fixedly welded at the middle position of the outer side of the pipeline main body (201), and the collecting box (204) is fixedly arranged at the bottom of the communicating pipe (203); a water dust removal mechanism (4) is fixedly arranged in the transmission mechanism (3); a secondary filter box (5) is fixedly arranged on the left side of the transmission mechanism (3); four filter plates (6) are fixedly arranged inside the secondary filter box (5).

2. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: the supporting mechanism (1) comprises a supporting frame (101), a connecting frame (102), a steel making furnace (103) and a waste gas connecting port (104), the steel making furnace (103) is fixedly arranged on the inner side of the top of the supporting frame (101), the waste gas connecting port (104) is fixedly arranged on the top of the steel making furnace (103), the connecting frame (102) is arranged on the left side of the supporting frame (101), and a fixing ring is fixedly arranged on the left end of the connecting frame (102).

3. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: connecting tube (2) include with driving shaft (207), spring shape scrapes strip (208) and spliced pole (209), the rotation of left end is connected with a driving shaft (207) bottom rotation, and driven shaft (202) left side and driving shaft (207) top are connected through bevel gear group (205) transmission, driven shaft (202) outside is fixed and is provided with spliced pole (209), and the end of spliced pole (209) is fixed and is provided with spring shape scrapes strip (208), this spring shape scrapes strip (208) bilateral symmetry, under the installation state, pipeline main part (201) right side end and waste gas connector (104) fixed connection.

4. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: the transmission mechanism (3) comprises an outer protective shell (301), a lower collecting box (302), a filter screen (303), an impeller (304), a rotary connecting frame (305) and a rotary connecting shaft (306), the lower collecting box (302) is fixedly arranged at the bottom of the outer protective shell (301), the rotary connecting frame (305) is fixedly arranged on the inner side of the top of the outer protective shell (301), the rotary connecting shaft (306) is rotatably connected onto the rotary connecting frame (305), a scraper is arranged at the bottom of the rotary connecting shaft (306), the impeller (304) is fixedly arranged on the outer side of the bottom of the rotary connecting shaft (306), the filter screen (303) is fixedly arranged on the inner side of the outer protective shell (301), the top of the filter screen (303) is contacted with the scraper of the rotary connecting shaft (306), an annular bulge is arranged on the inner side of the top of the outer protective shell (301), and inclined baffles are annularly arranged on the upper side of the annular bulge, in the installation state, the top of the outer protective shell (301) is fixedly connected with the bottom of the left side of the pipeline main body (201), and the top of the rotating connecting shaft (306) is in transmission connection with the bottom of the driving shaft (207).

5. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: water dust removal mechanism (4) is including dust removal main part (401), ring conduit (402), main connecting pipe (403), atomizer (404) and water pump connector (405), dust removal main part (401) top is the infundibulate, dust removal main part (401) bottom outside equidistance is provided with five ring conduit (402), and it is provided with the water jet to be annular arrangement on ring conduit (402), and ring conduit (402) all are linked together with main connecting pipe (403), main connecting pipe (403) rear side is connected with atomizer (404), and atomizer (404) rear side is fixed and is provided with water pump connector (405), under the mounted state, dust removal main part (401) fixed mounting passes and stretches out the outside of outer protective housing (301) at inside main connecting pipe (403) of outer protective housing (301).

6. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: the secondary filter box (5) comprises a connecting shell (501), a partition plate (502), an air inlet (503) and an air outlet (504), the air inlet (503) is arranged at the bottom of the right side of the connecting shell (501), the partition plate (502) is fixedly arranged in the middle of the inside of the connecting shell (501), the height of the partition board (502) is one tenth of the height of the connecting shell (501), rectangular through holes are arranged at equal intervals on the upper part of the partition board (502), an air outlet (504) is fixedly arranged on the left side of the connecting shell (501), and the outer side of the upper half part of the left end of the connecting shell (501) is also provided with rectangular through holes at equal intervals, and the upper part of the right side inside the connecting shell (501) is provided with rectangular grooves at equal intervals, and in the installation state, the right side of the connecting shell (501) is fixedly connected with the left side of the outer protective shell (301) and communicated with the inside of the outer protective shell (301) through an air inlet (503).

7. The environment-friendly steel making furnace for an exhaust gas treatment function according to claim 1, wherein: the filter plate (6) is including underframe (601), go up frame (602), filter core (603) and limiting plate (604), underframe (601) top inboard is fixed and is provided with frame (602), fixed filter core (603) that is provided with between underframe (601) and last frame (602), underframe (601) left side front and back symmetry is rotated and is connected with limiting plate (604), underframe (601) right side is provided with the recess, it can be embedded into the recess of underframe (601) to go up frame (602) right-hand member inside, under the installation, the whole right-hand member of filter plate (6) runs through and connects inside the rectangular channel of being connected shell (501) left side and baffle (502) and embedding into.

Technical Field

The invention belongs to the technical field of steel furnaces, and particularly relates to an environment-friendly steel furnace with a waste gas treatment function.

Background

Steel is a general name of iron-carbon alloy with carbon content between 0.02 and 2.11 percent by mass, the application and research history of human beings on steel is quite long, but the preparation of steel is a high-cost and low-efficiency work until the invention of 19 th century Behcet's steelmaking method, nowadays, steel becomes one of the most used materials in the world with low price and reliable performance, and is an indispensable component in the building industry, manufacturing industry and daily life of people, and the steel is obtained by smelting pig iron for steelmaking in a steelmaking furnace according to a certain process.

For example, application No.: CN201610955989.0, the invention discloses an environment-friendly steel-making furnace, which comprises a steel-making furnace, wherein a waste gas treatment device is fixedly connected with an opening at the top of the steel-making furnace, the waste gas treatment device comprises an air inlet pipe, one end of the air inlet pipe is fixedly connected with the opening of the steel-making furnace, the other end of the air inlet pipe is fixedly connected with an air inlet of a waste gas treatment box, and a water pipe is fixedly installed at the top of an inner cavity of the waste gas treatment box. According to the invention, through the cooperation of the water pipe, the spray head and the water tank, air entering the waste gas treatment box is humidified, so that dust in the waste gas is increased in weight due to humidification and falls into the bottom of the inner cavity of the waste gas treatment box, the dust enters the dust collecting box through the guide pipe to achieve the effect of removing the dust, and through the arrangement of the clamping plate, the slaked lime powder in the second through groove formed in the clamping plate can absorb sulfur dioxide in the waste gas, so that the effect of purifying the waste gas is achieved, and the pollution of steel making to the air is reduced.

Based on the retrieval of above-mentioned patent to and combine the equipment discovery among the prior art, above-mentioned equipment is when using, though can handle the produced gas of steelmaking, but the treatment effect remains to be improved, contains a large amount of dusts in the steelmaking waste gas, and pipeline inner wall can produce a large amount of dusts and be difficult for the clearance when using for a long time, and then the live time of the filter core of reduction has increased the filtration burden of filter core, and moreover, the filter core is only put into the single channel and is carried out exhaust-gas treatment, and the utilization ratio of filter core is lower.

Disclosure of Invention

In order to solve the technical problems, the invention provides an environment-friendly steel-making furnace with an exhaust gas treatment function, which aims to solve the problems that although the existing device can treat gas generated by steel-making, the treatment effect is to be improved, a large amount of dust is contained in steel-making exhaust gas, a large amount of dust is generated on the inner wall of a pipeline and is not easy to clean when the device is used for a long time, the service time of a filter element is further reduced, the filtering burden of the filter element is increased, and the filter element is only placed in a single channel for exhaust gas treatment, so that the utilization rate of the filter element is low.

The invention relates to an aim and an effect of an environment-friendly steel furnace with a waste gas treatment function, which are achieved by the following specific technical means:

an environment-friendly steel-making furnace with waste gas treatment function comprises a supporting mechanism; a transmission mechanism is fixedly arranged on the left side of the top of the supporting mechanism; the top parts of the supporting mechanism and the transmission mechanism are communicated through a connecting pipeline; the connecting pipeline comprises a pipeline main body, a driven shaft, a communicating pipe, a collecting box and a rotary connecting bulge, wherein the driven shaft is rotatably connected to the axis inside the pipeline main body; a water dust removal mechanism is fixedly arranged in the transmission mechanism; a secondary filter box is fixedly arranged on the left side of the transmission mechanism; four filter plates are fixedly arranged inside the secondary filter box.

Furthermore, the supporting mechanism comprises a supporting frame, a connecting frame, a steel making furnace and a waste gas connecting port, the steel making furnace is fixedly arranged on the inner side of the top of the supporting frame, the waste gas connecting port is fixedly arranged at the top of the steel making furnace, the connecting frame is arranged on the left side of the supporting frame, and a fixing ring is fixedly arranged on the left end of the connecting frame;

furthermore, the connecting pipeline comprises a driving shaft, a spring-shaped scraping strip and a connecting column, the bottom of a rotary connecting bulge at the left end is rotatably connected with the driving shaft, the left side of a driven shaft is in transmission connection with the top of the driving shaft through a bevel gear set, the outer side of the driven shaft is fixedly provided with the connecting column, the tail end of the connecting column is fixedly provided with the spring-shaped scraping strip, the spring-shaped scraping strips are bilaterally symmetrical, and the bottom of the right side of the pipeline main body is fixedly connected with the waste gas connector in an installation state;

further, the transmission mechanism comprises an outer protection shell, a lower collecting box, a filter screen, an impeller, a rotary connecting frame and a rotary connecting shaft, the lower collecting box is fixedly arranged at the bottom of the outer protection shell, the rotary connecting frame is fixedly arranged on the inner side of the top of the outer protection shell, the rotary connecting shaft is rotatably connected onto the rotary connecting frame, a scraper is arranged at the bottom of the rotary connecting shaft, the impeller is fixedly arranged on the outer side of the bottom of the rotary connecting shaft, the filter screen is fixedly arranged on the inner side of the outer protection shell, the top of the filter screen is in contact with the scraper of the rotary connecting shaft, an annular bulge is arranged on the inner side of the top of the outer protection shell, inclined baffles are arranged on the upper side of the annular bulge in an annular arrangement mode, the top of the outer protection shell is fixedly connected with the bottom of the left side of the pipeline main body in an installation state, and the top of the rotary connecting shaft is in transmission connection with the bottom of the driving shaft;

furthermore, the water dust removal mechanism comprises a dust removal main body, annular pipes, a main connecting pipe, an atomizer and a water pump connecting port, wherein the top of the dust removal main body is funnel-shaped, five annular pipes are equidistantly arranged on the outer side of the bottom of the dust removal main body, water spray nozzles are annularly arranged on the annular pipes, the annular pipes are communicated with the main connecting pipe, the atomizer is connected to the rear side of the main connecting pipe, the water pump connecting port is fixedly arranged on the rear side of the atomizer, and the dust removal main body is fixedly arranged in the outer protective shell, and the main connecting pipe penetrates through and extends out of the outer side of the outer protective shell;

furthermore, the secondary filter box comprises a connecting shell, a partition plate, an air inlet and an air outlet, the air inlet is formed in the bottom of the right side of the connecting shell, the partition plate is fixedly arranged in the middle of the inside of the connecting shell, the height of the partition plate is one tenth of the height of the connecting shell, rectangular through holes are formed in the upper portion of the partition plate at equal intervals, the air outlet is fixedly formed in the left side of the connecting shell, the rectangular through holes are also formed in the outer side of the upper half of the left end of the connecting shell at equal intervals, rectangular grooves are formed in the upper portion of the right side of the inside of the connecting shell at equal intervals, and the right side of the connecting shell is fixedly connected with the left side of the outer protective shell and communicated with the inside of the outer protective shell through the air inlet in an installation state;

further, the filter is including the underframe, go up frame, filter core and limiting plate, and the underframe top inboard is fixed and is provided with the frame, and the fixed filter core that is provided with between underframe and the last frame, the underframe left side front and back symmetry rotate and be connected with the limiting plate, and the underframe right side is provided with the recess, goes up inside the recess that the frame right-hand member can be embedded into the underframe, and under the installation state, the whole right-hand member of filter runs through and connects shell left side and baffle and imbeds the rectangular channel inside connecting the shell.

Compared with the prior art, the invention has the following beneficial effects:

connect the setting of shell and baffle, be favorable to improving the practicality of steel-making stove, after the prefilter through the filter screen, outside water pump water supply of rethread enters into the atomizer and atomizes, then disperse the inside and the blowout of toroidal tube by main connecting pipe again, reduce the burden of filter core, secondary treatment's waste gas enters into inside the connection shell, form the binary channels because of filter and baffle cooperation, and then improve the rate of utilization and the exhaust-gas treatment effect of filter core, the live time that has increased the filter core simultaneously has reduced the filtration burden of filter core, the binary channels of connection shell set up the utilization ratio that has further improved the filter core.

The setting of outer protective housing and impeller, be favorable to improving the clearance effect of steel-making stove, waste gas air current can add with higher speed and produce a rotatory power when the annular of outer protective housing is protruding and the baffle, and drive the rotatory anticlockwise rotation of impeller, the impeller drives and rotates the connecting axle rotation, it drives the rotation of bottom scraper blade and clears up the filter screen to rotate the connecting axle, it is rotatory to rotate the connecting axle simultaneously and drive the driving shaft, the driving shaft drives the driven shaft rotation through the bevel gear group, the strip can be handled the pipeline inner wall through the spring shape of spliced pole connection is scraped to the driven shaft, be convenient for clear up the inside dust of pipeline.

Drawings

FIG. 1 is a schematic side sectional view of the present invention.

Fig. 2 is a schematic axial side structure of the support mechanism of the present invention.

FIG. 3 is a schematic side sectional view of the connecting pipe of the present invention.

Fig. 4 is a schematic side sectional view of the transmission mechanism of the present invention.

FIG. 5 is a schematic side sectional view of the water dust removing mechanism of the present invention.

FIG. 6 is a schematic side sectional view of the secondary filter tank of the present invention.

Fig. 7 is an axial view of the filter plate of the present invention.

FIG. 8 is a schematic side sectional view of the filter plate of the present invention after being disassembled.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a support mechanism; 101. a support frame; 102. a connecting frame; 103. a steel-making furnace; 104. an exhaust gas connection port; 2. connecting a pipeline; 201. a pipe body; 202. a driven shaft; 203. a communicating pipe; 204. a collection box; 205. a bevel gear set; 206. the connecting bulge is rotated; 207. a drive shaft; 208. a spring-shaped wiper strip; 209. connecting columns; 3. a transmission mechanism; 301. an outer protective shell; 302. a lower collection box; 303. a filter screen; 304. an impeller; 305. a rotating connecting frame; 306. rotating the connecting shaft; 4. a water dust removal mechanism; 401. a dust removal main body; 402. an annular tube; 403. a main connection pipe; 404. an atomizer; 405. a water pump connector; 5. a secondary filter box; 501. connecting the shell; 502. a partition plate; 503. an air inlet; 504. an air outlet; 6. a filter plate; 601. a lower frame; 602. an upper frame; 603. a filter element; 604. and a limiting plate.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides an environment-friendly steel-making furnace with a waste gas treatment function, which comprises a supporting mechanism 1; a transmission mechanism 3 is fixedly arranged on the left side of the top of the supporting mechanism 1; the supporting mechanism 1 is communicated with the top of the transmission mechanism 3 through a connecting pipeline 2; the connecting pipeline 2 comprises a pipeline main body 201, a driven shaft 202, a communicating pipe 203, a collecting box 204 and a rotary connecting bulge 206, wherein the driven shaft 202 is rotatably connected to the axis inside the pipeline main body 201, the rotary connecting bulge 206 is arranged on the left side and the side inside the pipeline main body 201, the communicating pipe 203 is fixedly welded at the middle position outside the pipeline main body 201, and the collecting box 204 is fixedly arranged at the bottom of the communicating pipe 203; a water dust removal mechanism 4 is fixedly arranged in the transmission mechanism 3; a secondary filter box 5 is fixedly arranged on the left side of the transmission mechanism 3; four filter plates 6 are fixedly arranged inside the secondary filter box 5.

The supporting mechanism 1 comprises a supporting frame 101, a connecting frame 102, a steel making furnace 103 and a waste gas connecting port 104, the steel making furnace 103 is fixedly arranged on the inner side of the top of the supporting frame 101, the waste gas connecting port 104 is fixedly arranged at the top of the steel making furnace 103, the connecting frame 102 is arranged on the left side of the supporting frame 101, and a fixing ring is fixedly arranged at the left end of the connecting frame 102.

Wherein, connecting tube 2 includes with driving shaft 207, spring shape scraping strip 208 and spliced pole 209, the rotation of the left end is connected protruding 206 bottom and is rotated and be connected with a driving shaft 207, and driven shaft 202 left side and driving shaft 207 top are connected through bevel gear set 205 transmission, the fixed spliced pole 209 that is provided with in driven shaft 202 outside, and the fixed spring shape scraping strip 208 that is provided with in end of spliced pole 209, this spring shape scraping strip 208 bilateral symmetry, under the installation state, at the bottom of pipeline main part 201 right side and waste gas connector 104 fixed connection.

Wherein, the transmission mechanism 3 comprises an outer protective shell 301, a lower collection box 302, a filter screen 303, an impeller 304, a rotary connecting frame 305 and a rotary connecting shaft 306, the lower collection box 302 is fixedly arranged at the bottom of the outer protective shell 301, the rotary connecting frame 305 is fixedly arranged at the inner side of the top of the outer protective shell 301, and a rotating connecting shaft 306 is rotatably connected to the rotating connecting frame 305, a scraper is arranged at the bottom of the rotating connecting shaft 306, an impeller 304 is fixedly arranged on the outer side of the bottom of the rotating connecting shaft 306, a filter screen 303 is fixedly arranged on the inner side of the outer protective shell 301, the top of the filter screen 303 is contacted with a scraper of the rotating connecting shaft 306, an annular bulge is arranged on the inner side of the top of the outer protective shell 301, the upper side of the annular protrusion is provided with inclined baffles in an annular arrangement mode, the top of the outer protective shell 301 is fixedly connected with the bottom of the left side of the pipeline main body 201 in an installation state, and the top of the rotating connecting shaft 306 is in transmission connection with the bottom of the driving shaft 207.

Wherein, water dust removal mechanism 4 is including dust removal main part 401, ring pipe 402, main connecting pipe 403, atomizer 404 and water pump connector 405, dust removal main part 401 top is the infundibulate, dust removal main part 401 bottom outside equidistance is provided with five ring pipes 402, and it is provided with the water jet to be the annular arrangement on the ring pipe 402, and ring pipe 402 all is linked together with main connecting pipe 403, main connecting pipe 403 rear side is connected with atomizer 404, and the fixed water pump connector 405 that is provided with in atomizer 404 rear side, under the installation status, dust removal main part 401 fixed mounting passes and stretches out the outside of outer protective housing 301 at the inside main connecting pipe 403 of outer protective housing 301.

Wherein, secondary filter box 5 is including connecting shell 501, baffle 502, air inlet 503 and gas outlet 504, connect shell 501 right side bottom and seted up air inlet 503, connect the fixed baffle 502 that is provided with of the inside intermediate position of shell 501, and the height of baffle 502 is the tenth of connecting the shell 501 height, the part equidistance is provided with the rectangle through-hole on the baffle 502, connect shell 501 left side fixed and be provided with gas outlet 504, and connect the rectangle through-hole has also been seted up to the equal distance in the upper portion outside of the left end of shell 501, and connect the inside right side upper portion equidistance of shell 501 and seted up the rectangular channel, under the installation status, connect shell 501 right side and outer protective housing 301 left side fixed connection and be linked together through air inlet 503 and outer protective housing 301 inside.

The filter plate 6 comprises a lower frame 601, an upper frame 602, a filter element 603 and a limiting plate 604, the upper frame 602 is fixedly arranged on the inner side of the top of the lower frame 601, the filter element 603 is fixedly arranged between the lower frame 601 and the upper frame 602, the limiting plates 604 are rotationally and symmetrically arranged on the left side of the lower frame 601 in a front-back symmetrical manner, a groove is formed in the right side of the lower frame 601, the right end of the upper frame 602 can be embedded into the groove of the lower frame 601, and in the installation state, the whole right end of the filter plate 6 penetrates through the left side of the shell 501 and the partition plate 502 and is embedded into the rectangular groove of the shell 501.

The specific use mode and function of the embodiment are as follows:

in the invention, when in use, the water pump connecting port 405 is connected with an external water pump, waste gas of the steel making furnace 103 enters the inside of the pipeline main body 201 from the waste gas connecting port 104, and then enters the inside of the outer protective shell 301 from the inside of the pipeline main body 201, because the baffle on the annular bulge is inclined when the waste gas passes through the annular bulge at the top of the outer protective shell 301, the gas flow can be accelerated and generate a rotating force when the waste gas passes through the annular bulge and the baffle of the outer protective shell 301, further the impeller 304 is driven to rotate anticlockwise, the impeller 304 drives the rotating connecting shaft 306 to rotate, the rotating connecting shaft 306 drives the bottom scraper to clean the filter screen 303, meanwhile, the connecting shaft 306 drives the driving shaft 207 to rotate, the driving shaft 207 drives the driven shaft 202 to rotate through the bevel gear set 205, the driven shaft 202 processes the inner wall of the pipeline through the spring-shaped scraper 208 connected with the connecting post 209, the waste gas after secondary treatment enters the right side of the connecting shell 501, the waste gas flows into the left side from the right side of the baffle plate 502, a double channel is formed by the matching of the filter plate 6 and the baffle plate, so that the utilization rate of the filter element 603 is improved, the gas is reacted after passing through the filter element 603 to filter toxic substances and then is discharged from the gas outlet 504, when the filter element 603 needs to be replaced after long-time use, the filter plate 6 is drawn out from the inside of the secondary filter box 5, then the limiting plate 604 is rotated to separate from the upper frame 602, and then the upper frame of the filter element 602 is taken out to replace the filter element 603, then, the upper frame 602 is clamped into the inner side of the lower frame 601, and then the limiting plate 604 is rotated to contact and clamp the upper frame 602, and then the filter plate 6 is embedded into the connecting housing 501.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.