CN214861993U

CN214861993U - Flue gas preprocessing device that flue gas measurement accuracy is high

Info

Publication number: CN214861993U
Application number: CN202120302752.9U
Authority: CN
Inventors: 付作伟
Original assignee: China Creation Precise Instrument Tianjin Technology Co ltd
Current assignee: China Creation Precise Instrument Tianjin Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-26
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a flue gas preprocessing device that flue gas measurement accuracy is high belongs to flue gas purification technical field. The flue gas preprocessing device with high flue gas measurement precision comprises a filtering mechanism and a cleaning mechanism. Filtering mechanism is including handling case, filter screen, anti-backflow subassembly, ash discharge assembly, baffle, intake pipe and outlet duct, the filter screen connect in handle incasement wall the utility model discloses an intake pipe, handling case, filter screen, motor, axostylus axostyle, rotatory case, extension board, second guide rail, arc board, brush, third spring, ring, collection ash box, the sealed piece of third, round bar and the sealed effect of piece of second to reached the mesh of being convenient for clear up dust in the flue gas, can carry out the dust to the flue gas for a long time through dust removal structure, detach the dust in the flue gas, thereby make the difficult jam of electronic equipment in the flue gas preprocessing device, improve flue gas treatment effect, extension electronic equipment's life.

Description

Flue gas preprocessing device that flue gas measurement accuracy is high

Technical Field

The utility model relates to a flue gas purification field particularly, relates to a flue gas preprocessing device that flue gas measurement accuracy is high.

Background

In the flue gas treatment process, need carry out the preliminary treatment to the flue gas earlier, the harmful effects that interference material caused to the flue gas detection can be eliminated to present device though, the corruption of acid material to the system has been avoided, the measurement accuracy of flue gas concentration has been improved, the life of equipment has been prolonged, and the high flue gas preliminary treatment device of current flue gas measurement accuracy is not convenient for clear up the dust in the flue gas, because a large amount of dust that contain in the flue gas, if these dusts if do not detach and directly let in the preliminary treatment device, can block up electronic equipment, influence the flue gas treatment effect, reduce electronic equipment life.

Therefore, the technical personnel in the field provide a flue gas pretreatment device with high flue gas measurement precision to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a flue gas preprocessing device that flue gas measurement accuracy is high aims at improving the problem of the dust in the clearance flue gas of not being convenient for.

The utility model discloses a realize like this:

the utility model provides a flue gas preprocessing device that flue gas measurement accuracy is high, including filtering mechanism and clearance mechanism.

The filter mechanism comprises a treatment box, a filter screen, a backflow prevention assembly, an ash discharge assembly, a baffle, an air inlet pipe and an air outlet pipe, wherein the filter screen is connected to the inner wall of the treatment box, the air inlet pipe and the air outlet pipe are respectively communicated with two sides of the treatment box, the backflow prevention assembly is arranged on the inner wall of the treatment box, the backflow prevention assembly can block the air inlet pipe, the ash discharge assembly is connected to one side of the treatment box, the ash discharge assembly is communicated with one side of the treatment box, the baffle is arranged on the inner wall of the treatment box, the cleaning mechanism comprises a motor, a rotating assembly, a third spring, a circular ring, a second guide rail, an arc plate, a brush and a shaft lever, the motor is connected to one side of the treatment box, the shaft lever is arranged on an output shaft of the motor, the shaft lever penetrates through and extends into the treatment box, and the rotating assembly is connected to one end of the shaft lever, the third spring both ends with rotating component with the ring is connected, ring fixed mounting in the second guide rail surface, the second guide rail runs through to extend to the rotating component is outside, the arc board sets up to four, the arc board install in second guide rail one end, the brush connect in the arc board outside, the third spring cup joint in the second guide rail surface.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, the filter screen is the arc structure, the arc board with the brush is the arc structure, the brush with the filter screen is laminated mutually.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, rotating assembly includes rotatory case and extension board, rotatory case is cylindric, rotatory case connect in axostylus axostyle one end, the extension board install in rotatory incasement wall, third spring coupling in extension board week side.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, extension board week side is seted up flutedly, second guide rail one end peg graft in the recess, the third through-hole has been seted up to rotatory case week side, the second guide rail slide run through in the third through-hole.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, handle incasement wall fixedly connected with sealing washer, the sealing washer cup joint in the axostylus axostyle surface, handle case one side and seted up first through-hole, the axostylus axostyle with first through-hole clearance fit.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, prevent that the subassembly that flows backwards includes first spring, first layer board, first sealed piece and first guide rail, first spring both ends with handle the incasement wall with first layer board one side is connected, first sealed piece install in first layer board one side, first sealed piece is the round platform type, first sealed piece with the intake pipe is laminated mutually, first guide rail install in handle the incasement wall.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, the second through-hole has been seted up to first layer board internal surface, first guide rail slide run through in the second through-hole, first spring cup joint in first guide rail surface.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, arrange grey subassembly including collection ash case, second spring, second layer board, round bar, the sealed piece of second and the sealed piece of third, collection ash case connect in handle case one side, second spring both ends with collection ash incasement wall with the second layer board is connected, the second layer board install in the round bar both sides, the sealed piece of second with the sealed piece of third connect in the round bar both ends.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, the ash hole has been seted up to collection ash bin one side, the ash hole with the sealed piece of third is laminated mutually.

The utility model discloses a flue gas preprocessing device embodiment that flue gas measurement accuracy is high, it has seted up into ash hole to handle case one side, advance the ash hole with ash collection box intercommunication, advance the ash hole with the sealed piece of second is laminated mutually.

The utility model has the advantages that: the utility model discloses a flue gas preprocessing device that flue gas measurement accuracy is high that obtains through above-mentioned design, when using, people let in the flue gas to the processing incasement through the intake pipe, the filter screen can filter the dust in the flue gas, make the dust blocked by the filter screen, when the dust on the filter screen is too much, turn on the motor, the motor can drive the rotatory case through the axostylus axostyle and rotate, the rotatory case can drive the extension board and rotate, the extension board can drive the arc board through the second guide rail and rotate, the arc board can drive the brush rotation, the elasticity of third spring makes the brush hug closely on the filter screen surface through the ring, sweep the dust on the filter screen surface down between baffle and the filter screen, and enter into the ash collecting box through the ash inlet, when the ash collecting box is full of dust, people promote the third seal block upwards, the third seal block breaks away from with the ash outlet, the third seal block can drive the second seal block through the round bar and upwards move, the ash inlet can be plugged up by the second sealing block, the ash collecting box can be discharged from the ash outlet at the moment, the pretreatment device can remove dust from flue gas for a long time, and therefore the purpose of conveniently cleaning the dust in the flue gas is achieved, the dust can be removed from the flue gas for a long time through the dust removing structure, the dust in the flue gas is removed, electronic equipment in the flue gas pretreatment device is difficult to block, the flue gas treatment effect is improved, and the service life of the electronic equipment is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a flue gas pretreatment device with high measurement accuracy according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filtering mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a backflow prevention assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an ash discharge assembly according to an embodiment of the present invention;

fig. 5 is a schematic view of a first view angle structure of a cleaning mechanism according to an embodiment of the present invention;

fig. 6 is a schematic view of a second perspective structure of a cleaning mechanism according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a rotating assembly according to an embodiment of the present invention.

In the figure: 10-a filtering mechanism; 110-a treatment tank; 120-a filter screen; 130-a backflow prevention assembly; 131-a first spring; 132-a first pallet; 133 — a first sealing block; 134-a first guide rail; 135-a second through hole; 140-ash discharge assembly; 141-ash collection box; 142-a second spring; 143-a second pallet; 144-round bar; 145-a second sealing block; 146-a third sealing block; 147-an ash outlet; 150-a baffle; 160-air inlet pipe; 170-air outlet pipe; 180-a first via; 190-an ash inlet; 20-a cleaning mechanism; 210-a motor; 220-a rotating assembly; 221-a rotating box; 222-a plate; 223-third via; 224-a groove; 230-a third spring; 240-ring; 250-a second guide rail; 260-arc plate; 270-a brush; 280-shaft lever; 290-sealing ring.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a flue gas pretreatment device with high flue gas measurement accuracy, which includes a filtering mechanism 10 and a cleaning mechanism 20.

Wherein, clearance mechanism 20 fixed connection is on filtering mechanism 10, and filtering mechanism 10 is arranged in filtering the dust in the flue gas, and clearance mechanism 20 is used for the dust on the clearance filter core, makes preprocessing device can remove dust to the flue gas for a long time.

Referring to fig. 1 and 2, the filtering mechanism 10 includes a processing box 110, a filtering net 120, a backflow preventing assembly 130, an ash discharging assembly 140, a baffle 150, an air inlet pipe 160 and an air outlet pipe 170, the filtering net 120 is connected to the inner wall of the processing box 110, specifically, the filtering net 120 is fixedly connected to the inner wall of the processing box 110 by welding, the air inlet pipe 160 and the air outlet pipe 170 are respectively communicated with two sides of the processing box 110, the backflow preventing assembly 130 is installed on the inner wall of the processing box 110, the backflow preventing assembly 130 can block the air inlet pipe 160, the ash discharging assembly 140 is connected to one side of the processing box 110, the ash discharging assembly 140 is communicated with one side of the processing box 110, the baffle 150 is installed on the inner wall of the processing box 110, specifically, the baffle 150 is fixedly installed on the inner wall of the processing box 110 by welding, the filtering net 120 is used for filtering dust in flue gas, so that the dust is left on the filtering net 120, clean flue gas passes through the filtering net 120, the baffle 150 is used for limiting the dust, the dust is located between the filter screen 120 and the baffle 150, and the inlet pipe 160 and the outlet pipe 170 are used to pass the flue gas through the treatment tank 110 and to discharge the flue gas out of the treatment tank 110, respectively.

Referring to fig. 2 and 3, the backflow prevention assembly 130 includes a first spring 131, a first supporting plate 132, a first sealing block 133 and a first guide rail 134, two ends of the first spring 131 are connected to one side of the inner wall of the processing chamber 110 and one side of the first supporting plate 132, specifically, two ends of the first spring 131 are fixedly connected to one side of the inner wall of the processing chamber 110 and one side of the first supporting plate 132 by welding, the first sealing block 133 is mounted to one side of the first supporting plate 132, specifically, the first sealing block 133 is fixedly mounted to one side of the first supporting plate 132 by gluing, the first sealing block 133 is a rubber block, the first sealing block 133 is a circular table shape, the first sealing block 133 is attached to the air inlet pipe 160, the first guide rail 134 is mounted to the inner wall of the processing chamber 110, specifically, the first guide rail 134 is fixedly mounted to the inner wall of the processing chamber 110 by welding, the first sealing block 133 is located in the air inlet pipe 160 by the elastic force of the first supporting plate 132, so that the flue gas is not easily backflow into the air inlet pipe 160, the first guide rail 134 guides the first spring 131 so that the first spring 131 is not easily biased.

In some specific embodiments, the inner surface of the first supporting plate 132 is provided with a second through hole 135, the first guide rail 134 slidably penetrates through the second through hole 135, and the first spring 131 is sleeved on the outer surface of the first guide rail 134.

Referring to fig. 2 and 4, the dust discharging assembly 140 includes a dust collecting box 141, a second spring 142, a second supporting plate 143, a circular rod 144, a second sealing block 145 and a third sealing block 146, the dust collecting box 141 is connected to one side of the processing box 110, specifically, the dust collecting box 141 is fixedly connected to one side of the processing box 110 by welding, two ends of the second spring 142 are connected to an inner wall of the dust collecting box 141 and the second supporting plate 143, specifically, two ends of the second spring 142 are fixedly connected to an inner wall of the dust collecting box 141 and the second supporting plate 143 by welding, the second supporting plate 143 is mounted to two sides of the circular rod 144, specifically, the second supporting plate 143 is fixedly mounted to two sides of the circular rod 144 by welding, the second sealing block 145 and the third sealing block 146 are connected to two ends of the circular rod 144, specifically, the second sealing block 145 and the third sealing block 146 are fixedly connected to two ends of the circular rod 144 by gluing, and the dust collecting box 141 is used for collecting dust falling off the filter screen 120.

In some specific embodiments, an ash outlet 147 is formed in one side of the ash collection box 141, the ash outlet 147 is attached to the third sealing block 146, an ash inlet 190 is formed in one side of the treatment box 110, the ash inlet 190 is communicated with the ash collection box 141, the ash inlet 190 is attached to the second sealing block 145, the second spring 142 enables the third sealing block 146 to be tightly attached to the ash outlet 147 through the second supporting plate 143 and the round rod 144, the ash outlet 147 is sealed, the sealing performance of the ash collection box 141 is improved, the treatment box 110 is not prone to air leakage, when the second sealing block 145 blocks the ash inlet 190, the third sealing block 146 is separated from the ash outlet 147, and people can conveniently discharge dust from the ash outlet 147.

Referring to fig. 1, 2, 5 and 6, the cleaning mechanism 20 includes a motor 210, a rotating member 220, a third spring 230, a circular ring 240, a second guide rail 250, an arc plate 260, a brush 270 and a shaft 280, the motor 210 is connected to one side of the treatment tank 110, specifically, the motor 210 is fixedly connected to one side of the treatment tank 110 by screws, the shaft 280 is mounted to an output shaft of the motor 210, specifically, the shaft 280 is fixedly mounted to an output shaft of the motor 210 by welding, the shaft 280 extends into the treatment tank 110 by penetrating, the rotating member 220 is connected to one end of the shaft 280, two ends of the third spring 230 are connected to the rotating member 220 and the circular ring 240, the circular ring 240 is fixedly mounted to an outer surface of the second guide rail 250, specifically, the circular ring 240 is fixedly mounted to an outer surface of the second guide rail 250 by welding, the second guide rail 250 extends to an outer portion of the rotating member 220 by penetrating, the arc plates 260 are four, the arc plates 260 are mounted to one end of the second guide rail 250, specifically, arc plate 260 passes through welded fastening and installs in second guide rail 250 one end, and brush 270 is connected in the arc plate 260 outside, and is specific, and brush 270 is through gluing fixed connection in the arc plate 260 outside, and third spring 230 cup joints in second guide rail 250 surface.

In some embodiments, the filter screen 120 has an arc structure, the arc plate 260 and the brush 270 have an arc structure, and the brush 270 is attached to the filter screen 120.

Referring to fig. 5, 6 and 7, the rotating assembly 220 includes a rotating box 221 and a support plate 222, the rotating box 221 is cylindrical, the rotating box 221 is connected to one end of a shaft 280, specifically, the rotating box 221 is fixedly connected to one end of the shaft 280 by welding, the support plate 222 is installed on an inner wall of the rotating box 221, specifically, the support plate 222 is fixedly installed on an inner wall of the rotating box 221 by welding, a third spring 230 is connected to a peripheral side of the support plate 222, specifically, the third spring 230 is fixedly connected to a peripheral side of the support plate 222 by welding, a groove 224 is formed on the peripheral side of the support plate 222, one end of a second guide rail 250 is inserted into the groove 224, a third through hole 223 is formed on the peripheral side of the rotating box 221, the second guide rail 250 slidably penetrates through the third through hole 223, a sealing ring 290 is fixedly connected to an inner wall of the processing box 110, specifically, the inner wall of the processing box 110 is fixedly connected to a sealing ring 290 by gluing, the sealing ring 290 is sleeved on an outer surface of the shaft 280, first through hole 180 is opened on one side of processing box 110, shaft lever 280 and first through hole 180 clearance fit, motor 210 can drive rotatory case 221 through shaft lever 280 and rotate, rotatory case 221 can drive extension board 222 and rotate, extension board 222 can drive arc 260 through second guide rail 250 and rotate, arc 260 can drive brush 270 rotatoryly, the elasticity of third spring 230 makes brush 270 hug closely on the filter screen 120 surface through ring 240, sweep the dust on filter screen 120 surface between baffle 150 and the filter screen 120.

The working principle of the flue gas pretreatment device with high flue gas measurement precision is as follows: when the dust collecting box 141 is full of dust, people push the third sealing block 146 upwards, the third sealing block 146 is separated from the dust outlet 147, the third sealing block 146 drives the second sealing block 145 to move upwards through the round rod 144, the ash inlet 190 can be plugged up by the second sealing block 145, the ash collection box 141 can be discharged from the ash outlet 147 at the moment, so that the pretreatment device can remove dust from the flue gas for a long time, the aim of conveniently cleaning the dust in the flue gas is achieved, the dust can be removed from the flue gas for a long time through the dust removal structure, the dust in the flue gas is removed, the electronic equipment in the flue gas pretreatment device is difficult to block, the flue gas treatment effect is improved, and the service life of the electronic equipment is prolonged.

It should be noted that the specific model specification of the motor 210 needs to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the motor 210 and its principle will be clear to a person skilled in the art and will not be described in detail here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Flue gas preprocessing device with high flue gas measurement accuracy is characterized by comprising

The filter mechanism (10) comprises a treatment box (110), a filter screen (120), a backflow prevention assembly (130), an ash discharge assembly (140), a baffle (150), an air inlet pipe (160) and an air outlet pipe (170), wherein the filter screen (120) is connected to the inner wall of the treatment box (110), the air inlet pipe (160) and the air outlet pipe (170) are respectively communicated with two sides of the treatment box (110), the backflow prevention assembly (130) is installed on the inner wall of the treatment box (110), the backflow prevention assembly (130) can block the air inlet pipe (160), the ash discharge assembly (140) is connected to one side of the treatment box (110), the ash discharge assembly (140) is communicated with one side of the treatment box (110), and the baffle (150) is installed on the inner wall of the treatment box (110);

the cleaning mechanism (20), the cleaning mechanism (20) comprises a motor (210), a rotating assembly (220), a third spring (230), a circular ring (240), a second guide rail (250), an arc plate (260), a brush (270) and a shaft lever (280), the motor (210) is connected to one side of the treatment box (110), the shaft lever (280) is mounted on an output shaft of the motor (210), the shaft lever (280) extends into the treatment box (110) in a penetrating manner, the rotating assembly (220) is connected to one end of the shaft lever (280), two ends of the third spring (230) are connected with the rotating assembly (220) and the circular ring (240), the circular ring (240) is fixedly mounted on the outer surface of the second guide rail (250), the second guide rail (250) extends to the outside of the rotating assembly (220) in a penetrating manner, the arc plates (260) are four, and the arc plates (260) are mounted at one end of the second guide rail (250), the brush (270) is connected to the outer side of the arc plate (260), and the third spring (230) is sleeved on the outer surface of the second guide rail (250).

2. The flue gas pretreatment device with high flue gas measurement precision according to claim 1, wherein the filter screen (120) is of an arc structure, the arc plate (260) and the brush (270) are of an arc structure, and the brush (270) is attached to the filter screen (120).

3. The flue gas pretreatment device with high flue gas measurement precision according to claim 1, wherein the rotating assembly (220) comprises a rotating box (221) and a support plate (222), the rotating box (221) is cylindrical, the rotating box (221) is connected to one end of the shaft rod (280), the support plate (222) is mounted on the inner wall of the rotating box (221), and the third spring (230) is connected to the periphery of the support plate (222).

4. The flue gas pretreatment device with high flue gas measurement precision according to claim 3, wherein a groove (224) is formed on the periphery of the support plate (222), one end of the second guide rail (250) is inserted into the groove (224), a third through hole (223) is formed on the periphery of the rotating box (221), and the second guide rail (250) penetrates through the third through hole (223) in a sliding manner.

5. The flue gas pretreatment device with high flue gas measurement precision according to claim 1, wherein a sealing ring (290) is fixedly connected to the inner wall of the treatment box (110), the sealing ring (290) is sleeved on the outer surface of the shaft rod (280), a first through hole (180) is formed in one side of the treatment box (110), and the shaft rod (280) is in clearance fit with the first through hole (180).

6. The flue gas pretreatment device with high flue gas measurement accuracy according to claim 1, wherein the backflow prevention assembly (130) comprises a first spring (131), a first supporting plate (132), a first sealing block (133) and a first guide rail (134), two ends of the first spring (131) are connected with the inner wall of the treatment box (110) and one side of the first supporting plate (132), the first sealing block (133) is installed on one side of the first supporting plate (132), the first sealing block (133) is in a circular truncated cone shape, the first sealing block (133) is attached to the air inlet pipe (160), and the first guide rail (134) is installed on the inner wall of the treatment box (110).

7. The flue gas pretreatment device with high flue gas measurement accuracy according to claim 6, wherein a second through hole (135) is formed in the inner surface of the first supporting plate (132), the first guide rail (134) penetrates through the second through hole (135) in a sliding manner, and the first spring (131) is sleeved on the outer surface of the first guide rail (134).

8. The flue gas pretreatment device with high flue gas measurement accuracy according to claim 1, wherein the ash discharge assembly (140) comprises an ash collection box (141), a second spring (142), a second supporting plate (143), a round rod (144), a second sealing block (145) and a third sealing block (146), the ash collection box (141) is connected to one side of the treatment box (110), two ends of the second spring (142) are connected with the inner wall of the ash collection box (141) and the second supporting plate (143), the second supporting plate (143) is installed on two sides of the round rod (144), and the second sealing block (145) and the third sealing block (146) are connected to two ends of the round rod (144).

9. The flue gas pretreatment device with high flue gas measurement accuracy according to claim 8, wherein an ash outlet (147) is formed in one side of the ash collection box (141), and the ash outlet (147) is attached to the third sealing block (146).

10. The flue gas pretreatment device with high flue gas measurement accuracy according to claim 8, wherein an ash inlet (190) is formed in one side of the treatment box (110), the ash inlet (190) is communicated with the ash collection box (141), and the ash inlet (190) is attached to the second sealing block (145).