Pneumatic ash conveying pipeline additionally provided with filter

Abstract

The invention relates to a pneumatic ash conveying pipeline additionally provided with a filter. The problem that much dust is prone to being accumulated on one side of a filter screen is effectively solved. According to the technical scheme, the device comprises a device body, a filter screen is arranged in the device body, a supporting mechanism is arranged on the outer surface of the device body and comprises a supporting strip, a rotating shaft and a first spring, the supporting strip is rotationally arranged on the surface of the device body, the rotating shaft is rotationally arranged in the supporting strip, and the first spring is arranged in the supporting strip. A first spring is arranged between the supporting strip and the device body, and an adjusting mechanism is arranged on the outer surface of the device body. The filter body designed in the scheme can be installed between dust conveying pipelines, the filter screen can be supported through the soft arrangement of the filter screen, the filter screen can be continuously hit in the working process of the filter screen through the arrangement that the supporting strips can rotate and reset, dust on the surface of the filter screen can be conveniently hit down, and the dust conveying efficiency is improved. And the supporting strips are rotatably arranged, so that the filter screen can be supported and raised.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic ash conveying, and in particular to installing a filter on a pneumatic ash conveying pipeline. Background Art

[0002] Coal-fired thermal power generation is the main form of power generation in my country. Its main principle is: coal is sent to the boiler, and the chemical energy of the coal is converted into heat energy in the boiler and absorbed by water and water vapor. The steam does work in the turbine and is converted into mechanical energy. The turbine drives the generator rotor to rotate and converts the mechanical energy into electrical energy and transmits it to the user. In coal-fired thermal power generation technology, a large amount of dust is generated when the fuel is burned. The existing technology of pneumatic ash conveying can be used to circulate the dust and smoke in the pipe body through gas. The method of installing a filter can usually be used at the interface of the ash conveying pipeline to filter the larger dust inside the pipeline. The filter screen has been working during the filtering process, so that one side of the filter screen is prone to accumulate more dust. If it is not cleaned in time, it is easy to cause the surface of the filter screen to be blocked. The dust is easy to adhere to the filter screen, and it is difficult to clean the surface of the filter screen.

[0003] In view of the above, we provide pneumatic ash conveying pipelines with filters to solve the above problems. Summary of the invention

[0004] In view of the above situation, the present invention provides a filter installed in a pneumatic ash conveying pipeline. The body of the device can support the filter through the soft setting of the filter, and can continuously hit the filter during the operation of the filter through the setting of the support bar that can rotate and reset.

[0005] A filter is installed on a pneumatic ash conveying pipeline, including a body, a filter screen is arranged inside the body, a supporting mechanism is arranged on the outer surface of the body, the supporting mechanism includes a supporting bar, a rotating shaft and a No. 1 spring, the supporting bar is rotatably arranged on the surface of the body, a rotating shaft is rotatably arranged inside the supporting bar, a No. 1 spring is arranged between the supporting bar and the body, an adjusting mechanism is arranged on the outer surface of the body, the adjusting mechanism includes a No. 1 ring, a No. 2 ring and a positioning groove, the positioning groove is opened on the outer surface of the No. 2 groove, a lower pressure ring is slidably arranged on the upper surface of the body, a No. 2 spring is arranged between the lower pressure ring and the body, the surface of the positioning groove is overlapped with the lower pressure ring, and an ash discharge mechanism is arranged inside the body.

[0006] The above technical solution has the following beneficial effects:

[0007] The device body designed in this scheme can be installed between ash conveying pipes. The filter can be supported by the soft setting of the filter. The support bar can be rotatable and resettable so that the filter can be continuously hit during the operation of the filter, so that the dust on the surface of the filter can be knocked off conveniently. The rotatable setting of the support bar can support the bulge of the filter, so that air can be blown towards the surface of the filter to blow off the dust on the surface of the filter. The bulge of the filter can drop the dust accumulated on the surface of the filter to the edge, making it convenient for the ash discharge ring to move up and down to clean the ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0009] Figure 2 This is a schematic diagram of a single-side cutting of the device body of the present invention;

[0010] Figure 3 It is a schematic cross-sectional view of the device body of the present invention;

[0011] Figure 4 For the present invention Figure 2 Middle partial schematic diagram;

[0012] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0013] Figure 6 This is a schematic diagram of the support bar of the present invention being suspended in the air;

[0014] Figure 7 This is a schematic diagram of the second circle of the present invention;

[0015] Figure 8 Schematic diagram of the rotating shaft of the present invention.

[0016] In the figure: 1. body; 2. filter screen; 3. support bar; 4. rotating shaft; 5. spring No. 1; 6. ring No. 1; 7. ring No. 2; 8. positioning groove; 9. lower pressure ring; 10. spring No. 2; 11. side block; 12. lifting block; 13. exhaust port; 14. inner groove; 15. moving bar; 16. vertical rod; 17. notch; 18. driving gear; 19. blocking ring; 20. ash discharge ring; 21. spring No. 4; 22. spring No. 5; 23. top ring; 24. fluctuation groove; 25. side wheel; 26. side rod; 27. fitting block; 28. spring No. 3; 29. ​​air supply ring; 30. ash inlet. DETAILED DESCRIPTION

[0017] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 8 It can be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0018] This embodiment provides a pneumatic ash conveying pipeline with a filter installed, as shown in the attached Figure 1-8 As shown in the instruction manual, Figure 1 This is a three-dimensional diagram of the present invention, as shown in the attached manual. Figure 1 It can be seen that the body 1 is in a ring shape. The upper and lower sides of the body 1 need to be connected to the channel, and the channel is the ash conveying channel introduced in the text, and the body 1 is located between the upper and lower ash conveying pipes. The upper and lower ash conveying channels can be connected through the body 1 by existing bolts, so that the body 1 is located between the two ash conveying channels. Figure 2 This is a one-sided cutting of the present invention, because the cross section of the body 1 is a circular ring, the instructions are attached. Figure 2 Cut the cross section of the body 1 into semicircles. Figure 3 The sectional view corresponding to the accompanying drawings of the specification is shown in the accompanying drawings of the specification. Figure 4 Attach the instruction manual Figure 2 The manual is attached. Figure 6 The body 1 is hidden, and the other structures are displayed. Figure 7 This is a three-dimensional diagram of the second circle 7, the instruction manual is attached Figure 8 is a three-dimensional schematic diagram of the rotating shaft 4. The main filtering component of this solution is the filter screen 2. The filter screen 2 is a soft screen that can be deformed. This solution uses the deformation of the filter screen 2 to discharge ash. The air intake channel of this solution is as shown in the attached manual. Figure 2 As shown, the conveyor is transported from top to bottom, the support bar 3 rotates the surface of the setting body 1, and there are springs 5 ​​on both sides of the rotation center. The spring 5 is a torsion spring that can be torsionally reset, as shown in the attached manual Figure 6 As shown in FIG. 1 , the body 1 is provided with a hole for supplying the support bar 3 for rotation. This solution does not introduce the hole. Figure 2 As shown, at this time, the support bar 3 is kept in place under the elastic force of the No. 1 spring 5, and the support bar 3 can be rotated upward or downward. The driving component of this solution is a driving gear 18, and the rotation of the driving gear 18 is set on one side of the device body 1, and a motor is installed on one side of the driving gear 18, that is, the motor drives the driving gear 18 to operate, and the driving gear 18 and the No. 2 ring 7 are engaged (the No. 2 ring 7 and the No. 1 ring 6 are both rotatably set on the surface of the device body 1, and are limited and cannot be separated), as shown in the attached manual Figure 1As shown, at this time, the clockwise rotation of the No. 2 circle 7 will drive the No. 1 circle 6 to rotate, because the No. 1 circle 6 is provided with barbs at the bottom, and the No. 2 circle 7 is slidably provided with a side block 11, and the side block 11 is provided at the bottom for resetting. The side block 11 and the bottom of the No. 1 circle 6 form a one-way rotation mechanism. The clockwise rotation of the No. 2 circle 7 can make the side block 11 drive the No. 1 circle 6 to rotate, and the rotation of the No. 1 circle 6 can make the separate support bar 3 rotate and then reset, because there is a slope provided above the No. 1 circle 6, and this slope is the lifting block 12, and the lifting block 12 can lift the part of the support bar 3 exposed at the edge of the body 1, because the slope of the lifting block 12 is an integral process and has a vertical downward edge, after the lifting block 12 lifts the support bar 3, it will cause the No. 1 spring 5 to twist and store force (the support bar 3 is close to the support bar 3). The end near the filter 2 will slowly move away from the filter 2), and because the edge of the lifting block 12 is vertical, when the number one circle 6 rotates to a certain position, one side of the support strip 3 will be unobstructed. At this time, due to the twisting of the number one spring 5, the support strip 3 is quickly reset and hits the filter 2, hitting the dust above the filter 2, making it convenient for the filter 2 to remove dust. The continuous rotation of the number one circle 6 can make the multiple groups of support strips 3 in this scheme twisted and reset to hit the filter 2 (and the clamping strips can shake the dust on the surface during the resetting process, and the filter 2 is responsible for filtering larger dust), and the number two circle 7 can rotate counterclockwise to move the lower pressure ring 9 to the bottom position, because the number two circle 7 is provided with a positioning groove 8, and the positioning groove 8 is an annular groove frame with an oblique opening reaching the bottom below, as shown in the attached manual Figure 7 The joining instructions are attached. Figure 1It can be understood that the lower pressure ring 9 is slidably arranged above the body 1 and is supported by a No. 2 spring 10. In the figure, the No. 2 spring 10 is in a compressed state, and the oblique opening below the positioning groove 8 makes the No. 2 ring 7 rotate counterclockwise to allow the lower pressure frame to enter the oblique opening and reach below the oblique opening. Since one side of the lower pressure frame is on the positioning groove 8, the lower pressure frame will move downward under the action of the positioning groove 8. As the No. 2 ring 7 continues to rotate counterclockwise, the lower pressure frame will be below the oblique opening, that is, the No. 2 ring 7 has been running, so that the lower pressure ring 9 of this scheme is always in a downward moving position (that is, the No. 2 spring 10 is in an elongated state). The pressure ring 9 moves downward under the drive of the toggle groove, which can make all the support bars 3 of the present scheme rotate. The support bars 3 rotate toward the middle of the filter screen 2, changing the filter screen 2 from a funnel shape to an upward conical protrusion. Because the filter screen 2 is a flexible tube, the support bars 3 rotate to make the filter screen 2 protrude upward, and one side of the filter screen 2 is used to filter dust. The dust accumulated on the top of the filter screen 2 can reach the edge under the protrusion of the filter screen 2 for convenient transportation. The transportation function of this scheme will be introduced in the next paragraph. The positioning groove 8 will be introduced here. Due to the shape characteristics of the positioning groove 8, the positioning groove 8 is fixed. The positioning groove 8 also has an effect. The bottom of the lower pressure ring 9 is a round block on the positioning groove 8, and the positioning groove 8 falls back to the oblique mouth of the positioning groove 8 under the action of the second spring 10 during one rotation. In layman's terms, the second circle 7 continues to rotate counterclockwise (slowly). At this time, the lower pressure ring 9 will fall upward on the oblique mouth for each rotation under the action of the second spring 10, and then move downward. In this way, the support strip 3 of this scheme will first rotate upward to support the filter screen 2 when the second circle 7 continues to rotate counterclockwise, and then all the support strips 3 will move away from the filter screen 2, and finally support the filter screen 2 to make The filter screen 2 is first raised, and then falls down driven by the ash conveying pipeline, and then supported, so that the filter screen 2 has an ups and downs motion. This ups and downs motion relies on the oblique opening of the positioning groove 8, which makes it convenient for the filter screen 2 to shake the dust. In order to prevent the jacking block 12 of this scheme from affecting the support bar 3, when the second circle 7 rotates counterclockwise, the lower pressure ring 9 will drive the jacking block 12 to move downward. Because the edge of the jacking block 12 overlaps the lower pressure ring 9, and the two can rotate relatively, the jacking block 12 of this scheme can be lowered without affecting the support bar 3. This is the effect brought about by the movement of the second circle 7 of this scheme;

[0019] This solution can also be used for cleaning. First, a rotatable rotating shaft 4 is provided inside the supporting bar 3. The rotating shaft 4 and the supporting bar 3 are sealed for rotation, so gas can be transported between the two. A moving bar 15 is slidably provided on one side of the supporting bar 3. The moving bar 15 and the supporting bar 3 are also sealed for sliding. The moving bar 15 can only slide on the supporting bar 3 and cannot rotate. Therefore, when No. 2 rotates counterclockwise, the moving bar 15 will move toward one side of the supporting bar 3 driven by the notch 17. Because the notch 17 adopts a three-section design, the upper and lower ends are arc grooves made by drawing circles based on the rotation center of the supporting bar 3. The radius of the upper arc groove is larger than that of the lower arc groove, and the middle end connects the two arc grooves. In this way, under the action of the notch 17, No. 1 rotates counterclockwise so that the moving bar 15 is inserted into the inside of the supporting bar 3, and one side of the moving bar 15 is overlapped with the inner The groove 14, the inner groove 14 is a spiral opened on one side of the rotating shaft 4, and the movement of the moving bar 15 can change the position of the inner groove 14, that is, the rotating shaft 4 rotates 180 degrees, that is, the exhaust port 13 opened on the rotating shaft 4 itself exhausts downward, and becomes upward exhaust. The exhaust port 13 exhausts downward and can guide the airflow inside the ash conveying pipeline, which is convenient for ash conveying. The exhaust pipe is upward and the support bar 3 rotates, so that it can contact the filter screen 2, blow air on the surface of the filter screen 2, and blow off the dust filtered on the filter screen 2. The arc groove above the groove 17 corresponds to the rotation of the second circle 7 so that the support bar 3 hits the filter screen 2, and the arc groove below the groove 17 corresponds to the counterclockwise rotation of the first circle 6 so that the filter screen 2 bulges upward, falls, and then bulges. The upper part of the support bar 3 is connected to the air supply ring 29, and one side of the air supply ring 29 has a horizontal tube, as shown in the attached manual Figure 1, this pipe is connected to the fan, so as to supply gas to the support strip 3. The fan belongs to the existing structure, so it will not be introduced in detail. The rotating shaft 4 is designed not to block the air intake of the support strip 3. The present scheme also has the effect of cleaning. The cleaning mainly relies on the ash discharge ring 20. The ash discharge ring 20 is slidably arranged inside the device body 1 and can only slide but not rotate. A side rod 26 is overlapped on the edge of the second circle 7. The side rod 26 is rotatably arranged on one side of the device body 1. A gear is provided at the bottom to engage with the second circle 7. A rotatable fitting block 27 is provided at the top to overlap with the bottom of the side wheel 25. The bottom of the side wheel 25 is a ratchet. The ratchet and the fitting block 27 form a ratchet one-way mechanism. The significance of setting the side wheel 25 to rotate in one direction is that the two The rotation in different directions has different meanings, so that when the No. 2 circle 7 rotates counterclockwise, the side rod 26 drives the side wheel 25 to rotate, and there is a No. 3 spring 28 under the fitting block 27 for resetting. The No. 3 spring 28 is also a torsion spring, so the top ring 23 can rotate when the No. 2 circle 7 rotates counterclockwise, and the rotation of the top ring 23 can make the ash discharge ring 20 move up and down, because the top ring 23 is provided with a fluctuation groove 24, and the fluctuation groove 24 is an annular groove, and has the highest point and the lowest point, so that the ash discharge ring 20 moves up and down, and the lower surface of the ash discharge ring 20 is slidingly set on the blocking ring 19, and the function of the blocking ring 19 is to block the ash inlet 30, because the blocking ring 19 is slidingly set inside the device body 1, and the sliding distance is limited, please see the attached instruction manual Figure 4 and 5 There is a sliding limit mechanism inside the blocking ring 19, the bottom of the blocking ring 19 has a right side bar, and the upper part of the body 1 is integrally provided with a left side bar (as shown in the attached manual Figure 5 As shown), there is a sliding restriction between the two strips and a No. 4 spring 21 is connected end to end, and a No. 5 spring 22 is provided between the blocking ring 19 and the ash discharge ring 20. The elastic force of the No. 5 spring 22 is greater than the elastic force of the No. 4 spring 21. Therefore, the ash discharge ring 20 moves upward under the drive of the top ring 23, and the dust accumulated at the bottom of the ash discharge ring 20 is transported upward. After moving a certain distance, the blocking ring 19 reaches the vicinity of the ash inlet 30 and blocks the ash inlet 30, and cannot move upward. At this time, the No. 5 spring 22 is stretched, so that the ash discharge ring 20 continues to move upward. A notch is provided on the edge of the device body 1, as shown in the attached manual. Figure 4As shown, when the dust accumulated on the ash discharge ring 20 reaches a certain position, it will fall under the gap. A fan can also be added at the gap to facilitate dust discharge. The top ring 23 rotates to make the ash discharge ring 20 move downward. During the downward movement of the ash discharge ring 20, due to the large elastic force of the No. 5 spring 22, the blocking ring 19 remains in place until the No. 5 spring 22 recovers its original length, at which time the blocking ring 19 will reset. The purpose of this design is to make the blocking ring 19 block the ash inlet 30 when the ash discharge ring 20 is discharging ash until the ash discharge ring 20 is reset. This is the entire structure of the present invention. A filter screen 2 is provided inside the body 1, and a supporting mechanism is provided on the outer surface of the body 1. The supporting mechanism includes a supporting bar 3, a rotating shaft 4 and a No. 1 spring 5. The supporting bar 3 is rotatably arranged On the surface of the body 1, a rotating shaft 4 is provided for the internal rotation of the support bar 3, a No. 1 spring 5 is provided between the support bar 3 and the body 1, an adjusting mechanism is provided on the outer surface of the body 1, the adjusting mechanism includes a No. 1 ring 6, a No. 2 ring 7 and a positioning groove 8, the positioning groove 8 is provided on the outer surface of the No. 2 ring 7, a lower pressure ring 9 is slidably provided on the upper surface of the body 1, a No. 2 spring 10 is provided between the lower pressure ring 9 and the body 1, the surface of the positioning groove 8 is overlapped with the lower pressure ring 9, an ash discharge mechanism is provided inside the body 1, a side block 11 is slidably provided on the upper surface of the No. 2 ring 7, a lifting block 12 is slidably provided on the upper surface of the No. 1 ring 6, a lower pressure ring 9 is overlapped on one side of the lifting block 12, an exhaust port 13 is provided on the lower surface of the rotating shaft 4, and an inner groove 14 is provided on one side of the rotating shaft 4. The surface of the inner groove 14 is overlapped with a moving bar 15, and the moving bar 15 is slidably set on one side of the supporting bar 3. A vertical rod 16 is integrally set on the upper surface of the device body 1, and a notch 17 is opened on the surface of the vertical rod 16. The surface of the notch 17 is overlapped with the moving bar 15. The No. 1 ring 6 is rotatably set in the middle of the device body 1, and the No. 2 ring 7 is rotatably set at the bottom of the device body 1. The bottom of the No. 2 ring 7 is meshed with a driving gear 18. The ash discharge mechanism includes a blocking ring 19, an ash discharge ring 20, a No. 4 spring 21 and a No. 5 spring 22. The blocking ring 19 is slidably set inside the device body 1, and a No. 4 spring 21 is set between the blocking ring 19 and the device body 1. The ash discharge ring 20 is slidably set on the upper surface of the blocking ring 19, and a No. 5 spring 22 is set between the blocking ring 19 and the ash discharge ring 20. A single spring 22 is set on one side of the device body 1. The unidirectional driving mechanism includes a top ring 23, a wave groove 24, a side wheel 25 and a side rod 26. The top ring 23 is rotatably arranged on the top of the device body 1. The inner side wall of the top ring 23 is provided with a wave groove 24. The surface of the wave groove 24 is overlapped with an ash discharge ring 20. A side wheel 25 is rotatably arranged on one side of the device body 1. One side of the side wheel 25 is meshed with the top ring 23. A side rod 26 is rotatably arranged on one side of the device body 1. The bottom of the side rod 26 is meshed with a No. 2 ring 7. A fitting block 27 is rotatably arranged on the top of the side rod 26. One side of the fitting block 27 is overlapped with the side wheel 25. A No. 3 spring 28 is arranged on the lower surface of the fitting block 27. An air supply ring 29 is arranged on the outer surface of the device body 1. A supporting strip 3 is arranged below the air supply ring 29. An ash inlet 30 is arranged on the inner side wall of the device body 1.

[0020] The above description is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A filter is installed on a pneumatic ash conveying pipeline, comprising a body (1), characterized in that: A filter screen (2) is arranged inside the body (1), and a supporting mechanism is arranged on the outer surface of the body (1), wherein the supporting mechanism comprises a supporting bar (3), a rotating shaft (4) and a first spring (5), wherein the supporting bar (3) is rotatably arranged on the surface of the body (1), and a rotating shaft (4) is rotatably arranged inside the supporting bar (3), and a first spring (5) is arranged between the supporting bar (3) and the body (1), and an adjusting mechanism is arranged on the outer surface of the body (1), wherein the adjusting mechanism comprises a first ring (6), a second ring (7) and a positioning groove (8), and the positioning groove (8) is opened on the outer surface of the second ring (7), and a lower pressure ring (9) is slidably arranged on the upper surface of the body (1), and a second spring (10) is arranged between the lower pressure ring (9) and the body (1), and the surface of the positioning groove (8) is overlapped with the lower pressure ring (9), and an ash discharge mechanism is arranged inside the body (1).

2. The filter installed on the pneumatic ash conveying pipeline according to claim 1 is characterized in that: A side block (11) is slidably provided on the upper surface of the second ring (7), a lifting block (12) is slidably provided on the upper surface of the first ring (6), and a lower pressure ring (9) is overlapped on one side of the lifting block (12).

3. The filter installed in the pneumatic ash conveying pipeline according to claim 1 is characterized in that: The lower surface of the rotating shaft (4) is provided with an exhaust port (13); an inner groove (14) is provided on one side of the rotating shaft (4); a moving bar (15) is overlapped on the surface of the inner groove (14); the moving bar (15) is slidably arranged on one side of the supporting bar (3); a vertical rod (16) is integrally arranged on the upper surface of the device body (1); a notch (17) is provided on the surface of the vertical rod (16); and the moving bar (15) is overlapped on the surface of the notch (17).

4. The filter installed on the pneumatic ash conveying pipeline according to claim 1 is characterized in that: The first ring (6) is rotatably arranged at the middle of the device body (1), and the second ring (7) is rotatably arranged at the bottom of the device body (1), and the bottom of the second ring (7) is meshed with a driving gear (18).

5. The filter installed on the pneumatic ash conveying pipeline according to claim 1 is characterized in that: The ash discharge mechanism comprises a blocking ring (19), an ash discharge ring (20), a No. 4 spring (21) and a No. 5 spring (22); the blocking ring (19) is slidably arranged inside the device body (1); a No. 4 spring (21) is arranged between the blocking ring (19) and the device body (1); an ash discharge ring (20) is slidably arranged on the upper surface of the blocking ring (19); and a No. 5 spring (22) is arranged between the blocking ring (19) and the ash discharge ring (20).

6. The filter installed on the pneumatic ash conveying pipeline according to claim 5 is characterized in that: A one-way driving mechanism is arranged on one side of the device body (1), and the one-way driving mechanism comprises a top ring (23), a wave groove (24), a side wheel (25) and a side rod (26); the top ring (23) is rotatably arranged on the top of the device body (1); the inner side wall of the top ring (23) is provided with a wave groove (24); and the surface of the wave groove (24) is overlapped with an ash discharge ring (20).

7. The filter installed on the pneumatic ash conveying pipeline according to claim 6 is characterized in that: A side wheel (25) is rotatably provided on one side of the device body (1), a top ring (23) is meshed on one side of the side wheel (25), and a side rod (26) is rotatably provided on one side of the device body (1).

8. The filter installed on the pneumatic ash conveying pipeline according to claim 6 is characterized in that: The bottom of the side rod (26) is meshed with a No. 2 ring (7), the top of the side rod (26) is rotatably provided with a fitting block (27), one side of the fitting block (27) is overlapped with a side wheel (25), and the lower surface of the fitting block (27) is provided with a No. 3 spring (28).

9. The filter installed on the pneumatic ash conveying pipeline according to claim 1, characterized in that: An air supply ring (29) is provided on the outer surface of the body (1), and a support strip (3) is provided below the air supply ring (29).

10. The filter installed on the pneumatic ash conveying pipeline according to claim 1, characterized in that: An ash inlet (30) is provided on the inner side wall of the vessel body (1).

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