CN219984179U - Reverse jet ash removal device in filter bag - Google Patents

Abstract

The utility model relates to the field of flue gas treatment, in particular to a reversely spraying ash removal device in a filter bag, which comprises a plurality of first movable branch air pipes, wherein the first movable branch air pipes are driven by a lifting device to move up and down; the first movable branch air pipe is communicated with the high-pressure fan through the connecting pipe mechanism; the first movable branch air pipe is also communicated with a plurality of blowing pipes with closed lower ends and positioned in the corresponding filter bags, and the blowing pipes are provided with a plurality of rows of blowing holes along the height direction of the blowing pipes. The utility model can realize the ash removal of the long filter bag with small moving stroke because the blowing holes are arranged in a plurality of rows and the blowing pipe provided with the blowing holes can move up and down. Meanwhile, the first movable branch air pipe is matched with the first movable branch air pipe sleeve, and the second first branch air pipe and the second movable branch air pipe sleeve are matched, so that the regional blowing can be divided, the air quantity and the pressure can be regulated, and the soot blowing intensity can be regulated.

Description

Reverse jet ash removal device in filter bag

Technical Field

The utility model belongs to the field of flue gas treatment, and particularly relates to a reverse jet ash removal device in a filter bag.

Background

The stripping cake capability of the reverse jet sootblowing is superior to that of the pulse airflow sootblowing. The air ring back blowing mode of the filter bag dust collector is a reverse jet soot blowing mode, at the moment, air flow is vertically blown to filter materials, the capability of stripping dust cakes is strong, and the soot cleaning effect is strong. However, because the transmission of the back blowing of the air ring is too complicated, the stroke is small, and the long filter bag is not suitable, the air ring is easy to collide with the filter bag to cause damage, so that the popularization and application of the back blowing of the air ring are hindered. There is no better reverse jet sootblower design at present.

The current application is widely pulse blowing ash removal. The pleated filter cylinder, the pleated filter bag and the large-caliber filter bag are used, the filtering area of a single filter bag is increased, the size of a dust collector body can be reduced, the occupied area of the dust collector is reduced, and the lower filtering wind speed is easy to realize, so that the resistance is reduced, the electric energy consumption is reduced, and huge social benefits are brought, however, according to the soot blowing capability of the traditional pulse soot blower, the filtering area of the single filter bag of the filter bag is lower than 5 square meters. Therefore, in order to increase the filtering area of a single filter bag, a blowing device capable of sufficiently blowing dust to the filter bag with an ultra-large filtering area needs to be provided.

Disclosure of Invention

The utility model provides a reverse jet ash removal device in a filter bag, which is used for solving the defects in the prior art.

The utility model is realized by the following technical scheme:

the filter bag inner reverse spraying ash removing device comprises a plurality of first movable branch air pipes, wherein the first movable branch air pipes are driven by a lifting device to move up and down; the first movable branch air pipe is communicated with the high-pressure fan through the connecting pipe mechanism; the first movable branch air pipe is also communicated with a plurality of blowing pipes with closed lower ends, the blowing pipes are positioned in the corresponding filter bags, and a plurality of rows of blowing holes are formed in the blowing pipes along the height direction of the blowing pipes.

When ash cakes need to be removed, the high-pressure fan ventilates the first movable branch air pipe through the connecting pipe mechanism, the first movable branch air pipe is driven to move up and down through the lifting device so as to drive the blowing pipe to move up and down in the filter bag, wherein air flow in the first movable branch air pipe is nearly vertically blown on the filter bag through the blowing hole on the blowing pipe, and the filter bag can be fully blown in a certain height range under the driving of the upward and downward movement of the blowing pipe, so that the filter bag is fully cleaned, and the filtering area of a single filter bag is increased.

Preferably, the connecting pipe mechanism comprises a fixed branch inner pipe and a movable branch outer pipe, wherein the fixed branch inner pipe is communicated with the high-pressure fan, the movable branch outer pipe is communicated with the first movable branch air pipe, and the fixed branch inner pipe is inserted into the movable branch outer pipe and is connected through a sliding sealing device. The movable branch outer pipe can move up and down along with the first movable branch air pipe, and because the movable branch outer pipe and the fixed branch inner pipe are sealed in a sliding mode, air supply to the first movable branch air pipe can still be achieved through the combination of the movable branch outer pipe and the fixed branch inner pipe when the first movable branch air pipe moves up and down.

Preferably, the connecting pipe mechanism is a hose, and two ends of the hose are respectively communicated with the high-pressure fan and the first movable branch air pipe. The hose can move along with the movement of the first movable branch air pipe, so that the air supply to the first movable branch air pipe is realized.

Preferably, the first movable branch air pipe is sleeved with a coaxial first movable branch air pipe sleeve, the first movable branch air pipe sleeve is sealed with the first movable branch air pipe, the front end of the first movable branch air pipe sleeve is an air inlet, the rear end of the first movable branch air pipe sleeve is closed, air enters the air inlet through a connecting pipe mechanism, the first movable branch air pipe sleeve is provided with first blowing pipe holes, and when any part of the first blowing pipe holes are right opposite to the corresponding blowing pipes, the rest of the first blowing pipe holes are closed through the first movable branch air pipe; the first transmission shaft is driven by the first rotary driving device to repeatedly rotate along the axis line of the first transmission shaft, and the first movable branch air pipe is fixedly connected with the first rotary driving device through the frame.

The first transmission shaft is driven by the first rotary driving device to repeatedly rotate so as to drive the first branch air pipe sleeve to rotate, wherein when only a part of first air blowing pipe holes are opposite to the corresponding air blowing pipes in each rotation of the first branch air pipe sleeve, the rest of first air blowing pipe holes are sealed by the first movable branch air pipes, so that air flows out of the through first air blowing pipe holes and flows into the corresponding air blowing pipes, air blowing is carried out on the filter bag, the partition soot blowing of the filter bag is realized, and meanwhile, as other holes are sealed, the through holes can generate larger air flow, and better jetting effect is ensured.

Preferably, the first movable branch air pipe is communicated with the second movable branch air pipe, the second movable branch air pipe is communicated with the connecting pipe mechanism, a coaxial second movable branch air pipe sleeve is sleeved in the second movable branch air pipe, the second movable branch air pipe sleeve is sealed with the second movable branch air pipe, the front end of the second movable branch air pipe sleeve is an air inlet, the rear end of the second movable branch air pipe sleeve is closed, air enters the air inlet of the second movable branch air pipe sleeve through the connecting pipe mechanism, the second movable branch air pipe sleeve is provided with a second air blowing pipe hole, and when the corresponding part of the second air blowing pipe holes are right opposite to the corresponding first movable branch air pipe, the rest of the second air blowing pipe holes are closed through the second movable branch air pipe; the second transmission shaft is fixedly connected with a second transmission shaft in the second movable branch air pipe sleeve in a coaxial manner, the second transmission shaft penetrates out of the second movable branch air pipe and is in rotary connection with the second movable branch air pipe through a sealing bearing, the second transmission shaft is driven by a second rotary driving device to repeatedly rotate along the axial lead of the second transmission shaft, and the second movable branch air pipe is fixedly connected with a second rotary driving device of a corresponding frame. The second rotary driving device drives the second transmission shaft to reciprocate, and then drives the second movable branch air pipe sleeve to rotate, so that when a part of second blowing pipe holes are right opposite to the corresponding first movable branch air pipes, the rest of second blowing pipe holes are closed through the second movable branch air pipes, and then air flows through the through second blowing pipe holes to enter the first movable branch air pipes, further refinement of partition soot blowing is achieved, and the blowing effect is further enhanced.

Preferably, the first rotary driving device and the second rotary driving device are ratchet devices, the ratchet devices are fixedly arranged on the corresponding frames, ratchet wheels in the ratchet devices are respectively sleeved on the corresponding first transmission shaft and second transmission shaft, the dust remover is fixedly connected with a boosting mechanism, and the boosting mechanism is respectively positioned in a track line formed by swinging of swinging ends of rocking rods of the corresponding first ratchet devices and second ratchet devices. When the first driving device and the second driving device follow the corresponding first moving branch air pipe and the corresponding second moving branch air pipe to move upwards, the rocking bars of the first ratchet device and the second ratchet device can touch the corresponding boosting mechanism respectively, the rocking bars are driven to swing, the rocking bars swing to drive and drive the corresponding ratchet wheels to rotate through the pawls, so that the rotation corresponding to the first transmission shaft and the second transmission shaft is realized, the first ratchet device and the second ratchet device can ensure that the rotation angles of the corresponding first transmission shaft and the corresponding second transmission shaft are the same every time, and a part of corresponding first blowing pipe holes and corresponding second blowing pipe holes are in a through state every time of rotation.

Preferably, the boosting mechanism is a fixed stop iron.

Preferably, the boosting mechanism is a cylinder with a downward movable end, the movable end of the cylinder is positioned above a track line formed by the swinging end of the rocker when the cylinder contracts, and the movable end of the cylinder is positioned within the track line formed by the swinging end of the rocker when the cylinder extends. When the cylinder stretches, the movable end of the cylinder can play a role in boosting the swing end of the rocker, when the cylinder retracts, the rocker cannot touch the movable end of the cylinder, and when the rocker cannot touch the movable end of the cylinder, the movable end of the cylinder can keep running in the state, so that the corresponding first transmission shaft and second transmission shaft can be adjusted as required without rotating.

Preferably, the blowing pipe is sleeved with a horn-shaped fan cover, the fan cover can close the inlet of the corresponding filter bag through the driving of the blowing pipe, and the fan cover is provided with a pressure release valve. The fan housing can play the effect of blockking to the wind that gets into the filter bag, prevents that wind from flowing out from the filter bag export, and then increases the pressure in the filter bag, realizes better soot blowing effect, and the relief valve can guarantee to carry out the pressure release when the inside pressure of filter bag is too high.

Preferably, a columnar honeycomb catalyst is fixedly arranged on the flower plate at the outlet of the filter bag, and the blowing pipe penetrates through the columnar honeycomb catalyst. The catalyst is directly arranged in the dust remover, and the occupied space is small. No more denitration tower is arranged, no more ventilation flue is arranged, the occupied area is reduced, the weight is reduced, the smoke resistance is reduced, and the heat dissipation area is reduced

The beneficial effects of the utility model are as follows: the utility model has the advantages that the blowing holes are almost vertical to reversely spray and blow ash to the filter cloth, so that the ash cake stripping capability is strong; the spray holes are in a certain distance from the filter cloth and are not contacted with the filter cloth, so that the filter cloth is not damaged; because the blowing holes are arranged in a plurality of rows and the blowing pipes provided with the blowing holes can move up and down, the ash removal of the whole length of the long filter bag can be realized with small moving stroke. Meanwhile, the first movable branch air pipe is matched with the first movable branch air pipe sleeve, and the second first branch air pipe and the second movable branch air pipe sleeve are matched, so that the regional blowing can be divided, the air quantity and the pressure can be regulated, and the soot blowing intensity can be regulated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural view of embodiment 1;

fig. 2 is a schematic structural view of embodiment 2;

FIG. 3 is a schematic view of the first moving bronchus mated with the first moving bronchus sleeve;

FIG. 4 is a schematic diagram of the cooperation of the second moving branch air pipe and the first moving branch air pipe;

FIG. 5 is a schematic view of the pawl device;

FIG. 6 is a schematic diagram of the assembly of a catalyst in a filter bag;

FIG. 7 is a schematic diagram of the structure of the catalyst;

fig. 8 is a schematic structural view of embodiment 3;

FIG. 9 is a schematic view of a filter bag for several blow tubes.

The figure shows:

1. the device comprises a first movable branch air pipe, 2, a high-pressure fan, 3, a blowing pipe, 4, a blowing hole, 5, a fixed branch inner pipe, 6, a movable branch outer pipe, 7, a hose, 8, a first movable branch air pipe sleeve, 9, a first blowing pipe hole, 10, a first transmission shaft, 11, a first rotary driving device, 12, a second movable branch air pipe, 13, a boosting mechanism, 14, a fan housing, 15, a pressure relief valve, 16, a columnar honeycomb catalyst, 17, an air bag, 18, a gear, 19, a rack, 20, a screw, 21, a nut, 22 and a second rotary driving device.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

an in-filter-bag reverse jet ash removing device is shown in figures 1, 2-7 and 9. The device comprises a high-pressure fan 2 and a plurality of first movable branch air pipes 1 with two closed ends, wherein the first movable branch air pipes 1 are driven by a lifting device to move up and down; the high-pressure fan 2 or compressed air is connected with the air bag 17 through a pipeline and a valve, the air bag 17 is communicated with the first movable branch air pipe 1 through a connecting pipe mechanism, the connecting pipe mechanism comprises a fixed branch inner pipe 5 and a movable branch outer pipe 6, the fixed branch inner pipe 5 is communicated with the air bag 17, the movable branch outer pipe 6 is communicated with the first movable branch air pipe 1, and the fixed branch inner pipe 5 is inserted into the movable branch outer pipe 6 and is connected through a sliding sealing device.

The lifting mechanism is characterized in that the screw rod 20 is matched with the nut 21, the nut 21 is fixedly connected with the first movable branch air pipe 1, the nut 21 is vertically and slidably connected to the dust remover, the screw rod 20 penetrates through the nut 21 and is in threaded fit with the nut 21, the screw rod 20 is driven by a motor to rotate, and then the rotation of the screw rod 20 drives the nut 21 to move up and down.

The first movable branch air pipe 1 is also communicated with a plurality of blowing pipes 3 with closed lower ends, the blowing pipes 3 are positioned in the corresponding filter bags, and a plurality of rows of blowing holes 4 are formed in the blowing pipes 3 along the height direction of the blowing pipes. Several blow pipes can be correspondingly inserted into one filter bag, so that the filter bag can be suitable for filter bags with various shapes.

When ash cakes need to be removed, the high-pressure fan 2 or compressed air ventilates the first movable branch air pipe 1 through the connecting pipe mechanism, the first movable branch air pipe 1 is driven to move up and down through the lifting device so as to drive the blowing pipe 3 to move up and down in the filter bag, wherein the movable branch outer pipe 6 can move up and down along with the first movable branch air pipe 1, and the movable branch outer pipe 6 and the fixed branch inner pipe 5 are sealed in a sliding mode, so that the air supply to the first movable branch air pipe 1 can still be realized through the combination of the movable branch outer pipe 6 and the fixed branch inner pipe 5 when the first movable branch air pipe 1 moves up and down. And the air flow in the first movable branch air pipe 1 is vertically blown on the filter bag through the blowing holes 4 on the blowing pipe 3, and the filter bag can be fully blown in a certain height range under the driving of the up-and-down movement of the blowing pipe 3, so that the filter bag can be fully cleaned, and the filtering area of the single filter bag is increased.

A coaxial first movable branch air pipe sleeve 8 is sleeved in the first movable branch air pipe 1, the first movable branch air pipe sleeve 8 is sealed with the first movable branch air pipe 1, the front end of the first movable branch air pipe sleeve 8 is an air inlet, the rear end of the first movable branch air pipe sleeve is closed, air enters the air inlet through a connecting pipe mechanism, a first blowing pipe hole 9 is formed in the first movable branch air pipe sleeve 8, and when any part of the first blowing pipe holes 9 are opposite to the corresponding blowing pipes 3, the rest of the first blowing pipe holes 9 are closed through the first movable branch air pipe 1; the first movable branch air pipe sleeve 8 is internally and fixedly connected with a first transmission shaft 10 in a coaxial manner, the first transmission shaft 10 penetrates out of the first movable branch air pipe 1 and penetrates out of the first movable branch air pipe 1 to be rotationally connected with the first movable branch air pipe 1 through a sealing bearing, the first transmission shaft 10 is driven by a first rotary driving device 11 to repeatedly rotate along the axial lead of the first transmission shaft 10, and the first movable branch air pipe 1 is fixedly connected with the first rotary driving device 11 through a frame.

The first movable branch air pipe 1 is communicated with the second movable branch air pipe 12, the second movable branch air pipe 12 is communicated with the connecting pipe mechanism, a coaxial second movable branch air pipe 12 sleeve is sleeved in the second movable branch air pipe 12, the second movable branch air pipe 12 sleeve is sealed with the second movable branch air pipe 12, the front end of the second movable branch air pipe 12 sleeve is an air inlet, the rear end of the second movable branch air pipe 12 sleeve is closed, air enters the air inlet of the second movable branch air pipe 12 sleeve through the connecting pipe mechanism, a second blowing pipe hole is formed in the second movable branch air pipe 12 sleeve, and when any part of the second blowing pipe holes are right opposite to the corresponding first movable branch air pipe 1, the rest of the second blowing pipe holes are closed through the second movable branch air pipe 12. The second movable branch air pipe 12 is fixedly connected with a second transmission shaft in a sleeve pipe coaxially, the second transmission shaft penetrates out of the second movable branch air pipe 12 and penetrates out of the second movable branch air pipe 12 to be rotationally connected with the second movable branch air pipe 12 through a sealing bearing, the second transmission shaft is driven by a second rotary driving device 22 to repeatedly rotate along the axial lead of the second transmission shaft, and the second movable branch air pipe 12 is fixedly connected with the second rotary driving device 22 through a corresponding frame.

The first transmission shaft 10 is driven by the first rotary driving device 11 to repeatedly rotate so as to drive the first branch air pipe sleeve to rotate, wherein when only a part of the first air blowing pipe holes 9 are opposite to the corresponding air blowing pipes 3, the rest of the first air blowing pipe holes 9 are sealed by the first movable branch air pipes 1, so that air flows out from the through first air blowing pipe holes 9 and flows into the corresponding air blowing pipes 3, air blowing is carried out on the filter bag, the partition soot blowing of the filter bag is realized, and meanwhile, as other holes are sealed, the through holes can generate larger air flow, and the better blowing effect is ensured.

And the second rotary driving 22 device drives the second transmission shaft to rotate reciprocally, and then drives the second movable branch air pipe 12 to rotate, so that when a part of second blowing pipe holes are opposite to the corresponding first movable branch air pipe 1, the rest of second blowing pipe holes are closed through the second movable branch air pipe 12, and then air flows through the through second blowing pipe holes to enter the first movable branch air pipe 1, thereby realizing further refinement of partition soot blowing and further strengthening the blowing effect.

The first rotary driving device 11 and the second rotary driving device 22 are ratchet devices, the ratchet devices are fixedly arranged on the corresponding frames, ratchet wheels in the ratchet devices are respectively sleeved on the corresponding first transmission shaft 10 and the corresponding second transmission shaft, the dust remover is fixedly connected with a boosting mechanism 13, and the boosting mechanism 13 is respectively positioned in a track line formed by swinging of swinging ends of rocking rods of the corresponding first ratchet devices and the corresponding second ratchet devices. When the first driving device and the second driving device follow the corresponding first movable branch air pipe 1 and the corresponding second movable branch air pipe 12 to move upwards, rocking bars of the first ratchet device and the second ratchet device can touch corresponding boosting mechanisms 13 respectively, the rocking bars are driven to swing, the rocking bars swing to drive and drive corresponding ratchets to rotate through pawls, and accordingly rotation of the corresponding first transmission shaft 10 and the corresponding second transmission shaft is achieved, the first ratchet device and the second ratchet device can ensure that the corresponding first transmission shaft 10 and the corresponding second transmission shaft have the same rotation angle each time, and a part of corresponding first blowing pipe holes 9 and corresponding second blowing pipe 3 holes are in a through state each time.

The boosting mechanism 13 can be a fixed stop iron or a cylinder with a downward movable end. When the air cylinder is in a cylinder, the air cylinder moving end is positioned above a track line formed by the swinging end of the rocker when the air cylinder is contracted, and the air cylinder moving end is positioned in the track line formed by the swinging end of the rocker when the air cylinder is extended. When the cylinder extends, the movable end of the cylinder can play a role in boosting the swing end of the rocker, when the cylinder is retracted, the rocker cannot touch the cylinder, and when the rocker cannot touch the cylinder, the cylinder can keep running in the state, so that the corresponding first transmission shaft 10 and the corresponding second transmission shaft can be adjusted as required without rotating.

The blowing pipes are sleeved with the horn-shaped air hoods 14, the air hoods 14 can close the inlets of the corresponding filter bags through the driving of the blowing pipes, the air hoods 14 are provided with pressure relief valves 15, and when the blowing pipes are a plurality of blowing pipes, the blowing pipes are sleeved with one air hood 14. The fan housing 14 can play a role in blocking wind entering the filter bag, prevents wind from flowing out of the outlet of the filter bag, further increases the pressure in the filter bag, enables the filter bag to expand, achieves a better soot blowing effect, and the pressure release valve 15 can ensure pressure release when the pressure in the filter bag is too high.

The cylindrical honeycomb catalyst 16 is fixedly arranged on the flower plate at the outlet of the filter bag, and the blowing pipe 3 passes through the cylindrical honeycomb catalyst 16. For convenient installation of the catalyst, the catalyst is of the combined formula: the strip honeycomb catalysts with different specifications are assembled together, and the binding belt is tightly fixed. A sealing means is arranged in the middle to seal the gap between the catalyst and the lance tube 3. The catalyst is directly arranged in the dust remover, and the occupied space is small. No more denitration tower is arranged, no more ventilation flue is arranged, the occupied area is reduced, the weight is reduced, the smoke resistance is reduced, and the heat dissipation area is reduced

The beneficial effects of the utility model are as follows: the utility model is used, because the blowing holes 4 jet and blow the dust reversely to the filter cloth almost vertically, the dust cake stripping capability is strong; the spray holes are in a certain distance from the filter cloth and are not contacted with the filter cloth, so that the filter cloth is not damaged; because the blowing holes 4 are arranged in a plurality of rows and the blowing pipe 3 provided with the blowing holes 4 can move up and down, the ash removal of the long filter bag can be realized with a small moving stroke. Meanwhile, the first movable branch air pipe 1 is matched with the first movable branch air pipe sleeve 8, and the second first branch air pipe and the second movable branch air pipe 12 are matched, so that regional blowing can be divided, air quantity and pressure can be regulated, and soot blowing strength can be regulated.

Example 2:

as shown in fig. 2, compared with embodiment 1, the connection pipe mechanism is a hose 7 and both ends of the hose 7 are respectively communicated with the high-pressure fan 2 and the first moving branch air pipe 1. The hose 7 can move along with the movement of the first movable branch air pipe 1, so that the air supply to the first movable branch air pipe 1 is realized.

Example 3:

as shown in fig. 8, compared with embodiment 1, the lifting device is located in such a way that the gear 18 is matched with the rack 19, wherein the rack 19 is slidably connected to the dust remover and the rack 19 is fixedly connected to the first moving branch air pipe 1, the gear 18 is meshed with the rack 19, and the gear 18 drives the rack 19 to move up and down through the driving motor.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The utility model provides a reverse spraying ash removal device in filter bag which characterized in that: the device comprises a plurality of first movable branch air pipes, wherein the first movable branch air pipes are driven by a lifting device to move up and down; the first movable branch air pipe is communicated with the high-pressure fan through the connecting pipe mechanism; the first movable branch air pipe is also communicated with a plurality of blowing pipes with closed lower ends and positioned in the corresponding filter bags, and the blowing pipes are provided with a plurality of rows of blowing holes along the height direction of the blowing pipes.

2. The in-filter bag reverse jet ash removal device according to claim 1, wherein: the connecting pipe mechanism comprises a fixed branch inner pipe and a movable branch outer pipe, the fixed branch inner pipe is communicated with the high-pressure fan, the movable branch outer pipe is communicated with the first movable branch air pipe, and the fixed branch inner pipe is inserted into the movable branch outer pipe and connected through a sliding sealing device.

3. The in-filter bag reverse jet ash removal device according to claim 1, wherein: the connecting pipe mechanism is a hose, and two ends of the hose are respectively communicated with the high-pressure fan and the first movable branch air pipe.

4. A reverse jet ash removal device in a filter bag according to claim 2 or 3, wherein: the first movable branch air pipe is sleeved with a coaxial first movable branch air pipe sleeve, the first movable branch air pipe sleeve is sealed with the first movable branch air pipe, the front end of the first movable branch air pipe sleeve is an air inlet, the rear end of the first movable branch air pipe sleeve is closed, air enters the air inlet through a connecting pipe mechanism, the first movable branch air pipe sleeve is provided with first blowing pipe holes, and when any part of the first blowing pipe holes are opposite to the corresponding blowing pipes, the other first blowing pipe holes are closed through the first movable branch air pipe; the first transmission shaft is driven by the first rotary driving device to repeatedly rotate along the axis line of the first transmission shaft, and the first movable branch air pipe is fixedly connected with the first rotary driving device through the frame.

5. The filter bag in-situ reverse jet ash removal device of claim 4, wherein: the first movable branch air pipe is communicated with the second movable branch air pipe, the second movable branch air pipe is communicated with the connecting pipe mechanism, a coaxial second movable branch air pipe sleeve is sleeved in the second movable branch air pipe, the second movable branch air pipe sleeve is sealed with the second movable branch air pipe, the front end of the second movable branch air pipe sleeve is an air inlet, the rear end of the second movable branch air pipe sleeve is closed, air enters the air inlet of the second movable branch air pipe sleeve through the connecting pipe mechanism, a second blowing pipe hole is formed in the second movable branch air pipe sleeve, and when any part of the second blowing pipe holes are right opposite to the corresponding first movable branch air pipe, the rest of second blowing pipe holes are closed through the second movable branch air pipe; the second transmission shaft is fixedly connected with a second transmission shaft in the second movable branch air pipe sleeve in a coaxial manner, the second transmission shaft penetrates out of the second movable branch air pipe and is in rotary connection with the second movable branch air pipe through a sealing bearing, the second transmission shaft is driven by a second rotary driving device to repeatedly rotate along the axial lead of the second transmission shaft, and the second movable branch air pipe is fixedly connected with a second rotary driving device of a corresponding frame.

6. The in-filter bag reverse jet ash removal device according to claim 5, wherein: the first rotary driving device and the second rotary driving device are ratchet devices, the ratchet devices are fixedly arranged on the corresponding frames, ratchet wheels in the ratchet devices are respectively sleeved on the corresponding first transmission shaft and second transmission shaft, the dust remover is fixedly connected with a boosting mechanism, and the boosting mechanism is respectively positioned in a track line formed by swinging swing ends of rocking rods of the corresponding first ratchet devices and second ratchet devices.

7. The in-filter bag reverse jet ash removal device according to claim 6, wherein: the boosting mechanism is a fixed stop iron.

8. The in-filter bag reverse jet ash removal device according to claim 6, wherein: the boosting mechanism is a cylinder with a downward movable end, the movable end of the cylinder is positioned above a track line formed by the swinging end of the rocker when the cylinder contracts, and the movable end of the cylinder is positioned in the track line formed by the swinging end of the rocker when the cylinder extends.

9. The in-filter bag reverse jet ash removal device according to claim 1, wherein: the blowing pipe is sleeved with a horn-shaped fan cover, the fan cover can close the inlet of the corresponding filter bag through the driving of the blowing pipe, and the fan cover is provided with a pressure release valve.

10. The filter bag in-situ reverse jet ash removal device of claim 9, wherein: the cylindrical honeycomb catalyst is fixedly arranged on the flower plate at the outlet of the filter bag, and the blowing pipe penetrates through the cylindrical honeycomb catalyst.