A multi-detection head detection system for filter bag detection

Abstract

A multi-detection head detection system for filter bag detection, the multi-detection head detection system for filter bag detection includes a detection platform, a detection pool, a mounting plate, a frame, a hollow column and a ventilation column; a detection pool is provided at the top center of the detection platform, and wax liquid is provided in the detection pool; a mounting plate is provided on the detection platform, the mounting plate and the detection platform are slidably matched, the right side of the mounting plate is connected to the left side of the frame, a bag body is sleeved on the side of the frame, and the left end of the bag body is connected to the bottom ring of the frame; the left side of the mounting plate is connected to the right side of the hollow column, the mounting plate rotates with the hollow column, the left side of the ventilation column is connected to the right side of the mounting plate, the hollow column is connected to the ventilation column, and the side of the ventilation column is evenly provided with multiple ventilation holes. This design can accurately locate the damaged position of the filter bag, and the positioning is more convenient and quick.

Description

Technical Field

[0001] The invention relates to an improvement of a filter bag detection technology, belongs to the field of exhaust gas filtration, and in particular to a multi-detection head detection system for filter bag detection. Background Art

[0002] At present, thermal power plants need to discharge exhaust gas into the air during use, and need to use filter bags to filter the exhaust gas. The filter bags work continuously under high temperature conditions. During use, the filter bags will contact with the cage frame to produce mechanical wear and damage. At the same time, during the use of the filter bags, it is necessary to use a spray gun to spray and clean the filter bag body. During the spraying process, the filter bag body will be physically damaged. The filter bag needs to be replaced in time after three to four years of use. However, for thermal power plants, if the filter bag needs to be replaced, the thermal generator must be shut down to replace the filter bag, which will lead to huge economic losses and inconvenience in residents' lives. Therefore, it is urgent to test the filter bags in power plants. First, determine the degree of damage to the filter bag and whether it meets the repair standards; second, determine the location of the filter bag damage and determine the repair location.

[0003] The Chinese patent application with application number CN202011491697.9 and application date December 16, 2020 discloses a system for detecting filter bag damage based on the charge method, which relates to the technical field of bag dust collectors and is used to monitor in real time whether the filter bag is damaged. It includes a charge sensing module, a signal transmission module and a signal processing module; the charge sensing module continuously detects the charge signal; the signal transmission module transmits the detected charge signal to the signal processing module; the data processing module includes a charge amplifier, a filter circuit, and an analog-to-digital conversion circuit, which amplifies, filters, and converts the charge signal in turn to obtain a digital signal; and also includes a controller, which obtains the dust concentration change curve on the outlet side of each filter bag according to the corresponding relationship between the digital signal and the dust concentration, and determines whether the filter bag is damaged according to the dust concentration change curve corresponding to each filter bag. The present invention is suitable for relatively narrow bag dust collectors to monitor the damage of their filter bags in real time, but the comparative documents rely too much on the charge size carried by the dust after collision, resulting in a reduced detection accuracy and the inability to accurately locate the damaged position of the filter bag.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem in the prior art that the damaged position of the filter bag cannot be accurately located, and to provide a multi-detection head detection system for filter bag detection that can accurately locate the damaged position of the filter bag.

[0006] To achieve the above objectives, the technical solution of the present invention is: a multi-detection head detection system for filter bag detection, the multi-detection head detection system for filter bag detection comprising a detection table, a detection pool, a mounting plate, a frame, a hollow column and a ventilation column;

[0007] A detection pool is provided in the center of the top of the detection platform, and wax liquid is provided in the detection pool;

[0008] The detection table is provided with a mounting plate, the mounting plate and the detection table are slidably matched, the right side of the mounting plate is connected to the left side of the frame, a bag body is sleeved on the side of the frame, and the left end of the bag body is connected to the bottom ring of the frame;

[0009] The left side of the mounting plate is connected to the right side of the hollow column, the mounting plate rotates with the hollow column, the left side of the ventilation column is connected to the right side of the mounting plate, the hollow column is connected to the ventilation column, and a plurality of ventilation holes are evenly opened on the side of the ventilation column.

[0010] Two lifting mechanisms are arranged on the side periphery of the hollow column, and the two lifting mechanisms are located on the left side of the testing platform.

[0011] The wax liquid includes vegetable wax, animal wax, mineral wax or synthetic wax.

[0012] The frame includes a bracket and a support ring, the left side of the bottom ring is connected to the right side of the mounting plate, the right side of the bottom ring is connected to the left side of the bracket, the right side of the bracket is connected to the left side of the support ring, and the right side of the ventilation column is connected to the left center of the support ring;

[0013] The left end of the bag body is sleeved on the bottom ring, and the right end of the bag body is sleeved on the support ring. A fastening mechanism is arranged on the right side of the support ring, and the left side of the fastening mechanism is engaged with the support ring, and the fastening mechanism clamps and fixes the bag body and the support ring.

[0014] The fastening mechanism comprises a fastening ring and a conical cover, the right side of the fastening ring is connected to the left side of the conical cover, the left side of the fastening ring is engaged with the supporting ring, and the right side of the conical cover is connected to the auxiliary shaft.

[0015] A stabilizing mechanism is sleeved on the side periphery of the auxiliary shaft, and the length of the auxiliary shaft is the same as that of the hollow column.

[0016] The stabilizing mechanism includes a stabilizing block and a connecting bar. A mounting hole is provided on the lower side of the stabilizing block. The right end of the auxiliary shaft passes through the mounting hole and extends to the right side of the testing platform. The top of the stabilizing block is connected to the bottom of the connecting bar.

[0017] The height of the stabilizing block is smaller than the height of the connecting strip, and the length and width of the stabilizing block are both larger than the length and width of the connecting strip.

[0018] The top of the detection platform is located on the left side of the detection pool and has a groove, and the top of the detection platform is located on the right side of the detection pool and has two grooves. The hollow column is embedded in one groove, and the auxiliary shaft is embedded in the two grooves.

[0019] The first groove and the second groove are both connected to the detection pool, the first groove and the second groove are of the same size, and their depths are less than the depth of the detection pool, and the diameter of the hollow column is adapted to the caliber of the first groove;

[0020] The longitudinal section of the detection pool is in the shape of an arc, the curvature of the detection pool is the same as the curvature of the mounting plate, and the sum of the lengths of the mounting plate, the frame, and the fastening mechanism is the same as the length of the detection pool.

[0021] The frame also includes a cylinder and a plurality of through holes. The side of the cylinder is equidistantly and circumferentially distributed with a plurality of through holes. One end of the cylinder is connected to the mounting plate, and the other end of the cylinder is connected to the fastening mechanism. The bag body is sleeved on the cylinder.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In a multi-detection head detection system for filter bag detection of the present invention, a detection pool is provided in the center of the top of the detection platform, and wax liquid is provided in the detection pool; a mounting plate is provided on the detection platform, the mounting plate and the detection platform are slidably matched, the right side of the mounting plate is connected to the left side of the frame, and a bag body is sleeved on the side of the frame; the left side of the mounting plate is connected to the right side of the hollow column, the mounting plate rotates with the hollow column, the left side of the ventilation column is connected to the right side of the mounting plate, the hollow column is connected to the ventilation column, and a plurality of ventilation holes are evenly provided on the side of the ventilation column, the bag body is sleeved on the frame, and the hollow column is immediately driven Rotate, thereby driving the mounting plate and the bag on the frame to move toward the detection pool. When it moves to the top of the detection pool, lower the bag on the frame into the detection pool, and then rotate the hollow column no more than three times so that the surface of the bag is fully in contact with the wax liquid. After the paraffin is completely solidified, drive the hollow column to move to the front end of the detection table, and finally inject gas into the hollow column. The gas fills the bag into a cylindrical shape through the vent holes on the vent column. Observe the paraffin cracks on the surface of the bag and the degree of rupture to determine the broken position of the bag. The damaged position of the filter bag can be accurately located, and the positioning is more convenient and quick. Therefore, this design can accurately locate the damaged position of the filter bag, and the operation is simple.

[0024] 2. In a multi-detection head detection system for filter bag detection of the present invention, a fastening mechanism includes a fastening ring and a conical cover, the right side of the fastening ring is connected to the left side of the conical cover, the left side of the fastening ring is engaged with the support ring, the right side of the conical cover is connected to the auxiliary shaft, and a stabilizing mechanism is sleeved on the side of the auxiliary shaft. The stabilizing mechanism includes a stabilizing block and a connecting strip. A mounting hole is provided on the lower side of the stabilizing block. The right end of the auxiliary shaft extends to the right side of the detection table after passing through the mounting hole. The top of the stabilizing block is connected to the bottom of the connecting strip. The fastening mechanism can ensure a better clamping and fixing effect of the bag body, and it is more uniform when it is dipped in wax liquid. The setting of the stabilizing mechanism can balance the weight of the hollow columns and the auxiliary shaft on the left and right sides of the frame, so that the frame remains stable when rotating, and the operation of the device is more stable. Therefore, this design runs smoothly and is safe to use.

[0025] 3. In a multi-detection head detection system for filter bag detection of the present invention, the fastening mechanism includes a fastening ring and a conical cover, the right side of the fastening ring is connected to the left side of the conical cover, the left side of the fastening ring is engaged with the support ring, and the right side of the conical cover is connected to the auxiliary shaft. After the filter bag is inflated, it will swell up and change its shape. The setting of the conical cover reserves more space to prevent the fastening ring from being too tightly connected to the filter bag, which is not conducive to subsequent separation. At the same time, after waxing, the conical cover can make the wax liquid fall off faster to avoid pollution. Therefore, the design is reasonable and easy to connect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a detection schematic diagram of the bag body and the detection pool in the present invention.

[0028] Figure 3 It is a motion trajectory diagram of the bag body in the present invention.

[0029] Figure 4 It is a connection schematic diagram of the bag body in the present invention.

[0030] Figure 5 It is a structural schematic diagram of the framework in the present invention.

[0031] Figure 6 It is a structural schematic diagram of the stabilizing mechanism in the present invention.

[0032] Figure 7 It is a structural schematic diagram of the cylinder in the present invention.

[0033] Figure 8 It is a side view of the cylinder in the present invention.

[0034] Fig. 9 It is a schematic diagram of the running track of the present invention.

[0035] In the figure: a test table 1, a test pool 2, wax liquid 21, a first groove 3, a second groove 4, a mounting plate 5, an auxiliary shaft 6, a frame 7, a bottom ring 71, a bracket 72, a support ring 73, a bag body 8, a hollow column 9, a ventilation column 10, a ventilation hole 11, a fastening mechanism 12, a fastening ring 121, a conical cover 122, a lifting mechanism 13, a through hole 14, a stabilizing mechanism 15, a stabilizing block 151, a connecting strip 152, a mounting hole 153, and a cylinder 16. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figures 1 to 9 , a multi-detection head detection system for filter bag detection, the multi-detection head detection system for filter bag detection comprises a detection platform 1, a detection pool 2, a mounting plate 5, a frame 7, a hollow column 9 and a ventilation column 10;

[0038] A detection pool 2 is provided at the top center of the detection platform 1, and wax liquid 21 is provided in the detection pool 2;

[0039] The detection platform 1 is provided with a mounting plate 5, the mounting plate 5 and the detection platform 1 are slidably matched, the right side of the mounting plate 5 is connected to the left side of the frame 7, the side of the frame 7 is sleeved with a bag body 8, and the left end of the bag body 1 is connected to the bottom ring 71 of the frame 7;

[0040] The left side of the mounting plate 5 is connected to the right side of the hollow column 9, and the mounting plate 5 rotates with the hollow column 9. The left side of the ventilation column 10 is connected to the right side of the mounting plate 5, and the hollow column 9 is connected to the ventilation column 10. The side of the ventilation column 10 is evenly provided with multiple ventilation holes 11.

[0041] Two lifting mechanisms 13 are arranged on the side of the hollow column 9 , and the two lifting mechanisms 13 are located on the left side of the testing platform 1 .

[0042] The wax liquid 21 includes plant wax, animal wax, mineral wax or synthetic wax.

[0043] The frame 7 includes a bracket 72 and a support ring 73, the left side of the bottom ring 71 is connected to the right side of the mounting plate 5, the right side of the bottom ring 71 is connected to the left side of the bracket 72, the right side of the bracket 72 is connected to the left side of the support ring 73, and the right side of the ventilation column 10 is connected to the left center of the support ring 73;

[0044] The left end of the bag body 1 is sleeved on the bottom ring 71, and the right end of the bag body 8 is sleeved on the support ring 73. A fastening mechanism 12 is provided on the right side of the support ring 73. The left side of the fastening mechanism 12 is engaged with the support ring 73, and the fastening mechanism 12 clamps and fixes the bag body 8 and the support ring 73.

[0045] The fastening mechanism 12 includes a fastening ring 121 and a conical cover 122 . The right side of the fastening ring 121 is connected to the left side of the conical cover 122 . The left side of the fastening ring 121 is engaged with the support ring 73 . The right side of the conical cover 122 is connected to the auxiliary shaft 6 .

[0046] A stabilizing mechanism 15 is sleeved on the side of the auxiliary shaft 6 , and the length of the auxiliary shaft 6 is the same as that of the hollow column 9 .

[0047] The stabilizing mechanism 15 includes a stabilizing block 151 and a connecting bar 152. A mounting hole 153 is provided on the lower side of the stabilizing block 151. The right end of the auxiliary shaft 6 passes through the mounting hole 153 and extends to the right side of the testing platform 1. The top of the stabilizing block 151 is connected to the bottom of the connecting bar 152.

[0048] The height of the stabilizing block 151 is smaller than the height of the connecting bar 152 , and the length and width of the stabilizing block 151 are larger than the length and width of the connecting bar 152 .

[0049] The top of the detection platform 1 is located on the left side of the detection pool 2 and has a groove 3 , and the top of the detection platform 1 is located on the right side of the detection pool 2 and has two grooves 4 . The hollow column 9 is embedded in one groove 3 , and the auxiliary shaft 6 is embedded in the two grooves 4 .

[0050] The first groove 3 and the second groove 4 are both connected to the detection pool 2. The first groove 3 and the second groove 4 are of the same size, and their depths are less than the depth of the detection pool 2. The diameter of the hollow column 9 is adapted to the caliber of the first groove 3.

[0051] The longitudinal section of the detection pool 2 is in an arc shape. The curvature of the detection pool 2 is the same as that of the mounting plate 5 . The sum of the lengths of the mounting plate 5 , the frame 7 , and the fastening mechanism 12 is the same as the length of the detection pool 2 .

[0052] The frame 7 also includes a cylinder 16 and a plurality of through holes 14 . The side of the cylinder 16 is equidistantly distributed with a plurality of through holes 14 . One end of the cylinder 16 is connected to the mounting plate 5 , and the other end of the cylinder 16 is connected to the fastening mechanism 12 . The bag body 8 is sleeved on the cylinder 16 .

[0053] The principle of the present invention is described as follows: when the hollow column 9 is located above the detection platform 1, the bag body 8 is sleeved on the frame 7, so that the left end of the bag body 8 is sleeved on the bottom ring 71, and the right end is clamped and fixed by the fastening mechanism 12, and then the hollow column 9 is driven to translate, thereby driving the mounting plate 5 and the bag body 8 on the frame 7 to move toward the detection pool 2. When it moves to the top of the detection pool 2, the lifting mechanism 13 is started to lower the bag body 8 on the frame 7 into the detection pool 2, so that the hollow column 9 enters a groove 3, and the auxiliary shaft 6 enters into the second groove 4, then rotates the hollow column 9 for no more than three turns, so that the surface of the bag body 8 is fully in contact with the wax liquid 21, and drives the lifting mechanism 13 again to drive the mounting plate 5 to rise to the detection table 1. After the wax liquid solidifies, drive the hollow column 9 to move to the front end of the detection table 1, and finally inject gas into the hollow column 9. The gas fills the bag body 8 into a cylindrical shape through the vent hole 11 on the vent column 10. Observe the paraffin cracks on the surface of the bag body 8 and the degree of rupture to determine the broken position of the bag body 8.

[0054] Embodiment 1:

[0055] A multi-detection head detection system for filter bag detection, the multi-detection head detection system for filter bag detection comprises a detection platform 1, a detection pool 2, a mounting plate 5, a frame 7, a hollow column 9 and a ventilation column 10; a detection pool 2 is provided at the top center of the detection platform 1, and wax liquid 21 is provided in the detection pool 2; a mounting plate 5 is provided on the detection platform 1, the mounting plate 5 and the detection platform 1 are slidably matched, the right side of the mounting plate 5 is connected to the left side of the frame 7, a bag body 8 is sleeved on the side of the frame 7, and the left end of the bag body 1 is connected to the bottom ring 71 of the frame 7; the left side of the mounting plate 5 is connected to the right side of the hollow column 9, the mounting plate 5 rotates with the hollow column 9, the left side of the ventilation column 10 is connected to the right side of the mounting plate 5, the hollow column 9 is connected to the ventilation column 10, and the side of the ventilation column 10 is evenly provided with a plurality of ventilation holes 11.

[0056] During application: when the hollow column 9 is higher than the detection table 1, the bag body 8 is placed on the bottom ring 71 of the frame 7 to ensure that the bag mouth of the bag body 1 is in a sealed state, and then the bag body 8 is driven to move horizontally to the top of the detection pool 2, and the bag body 8 on the frame 7 is lowered into the detection pool 2, and then the bag body 8 is rotated no more than three times so that the surface of the bag body 8 is in full contact with the wax liquid 21, and then it is raised. After the paraffin is completely solidified, the hollow column 9 is driven to move to the rear end of the detection table 1, and then gas is injected into the hollow column 9. The gas fills the bag body 8 into a cylindrical shape through the vent hole 11 on the ventilation column 10, and the paraffin cracks on the surface of the bag body 8 and the degree of rupture are observed to determine the broken position of the bag body 8. There are two ways to deal with the degree of paraffin rupture:

[0057] The first method is to compare the wax cracks in the tested area of ​​a certain surface of the bag body 8. When the cracks in a certain part are obviously enlarged or directly damaged, it is determined that the corresponding position is damaged;

[0058] The second method is to first record the cracks in each area to obtain the average crack degree of each area, record the relevant data, and then observe the area where the average crack degree increases, which is the damaged area.

[0059] Embodiment 2:

[0060] Embodiment 2 is substantially the same as Embodiment 1, except that:

[0061] A multi-detection head detection system for filter bag detection, wherein two lifting mechanisms 13 are arranged on the side of the hollow column 9, and the two lifting mechanisms 13 are located on the left side of the detection platform 1; the wax liquid 21 comprises plant wax, animal wax, mineral wax or synthetic wax; the frame 7 comprises a bracket 72 and a support ring 73, the left side of the bottom ring 71 is connected to the right side of the mounting plate 5, the right side of the bottom ring 71 is connected to the left side of the bracket 72, the right side of the bracket 72 is connected to the left side of the support ring 73, and the right side of the ventilation column 10 is connected to the left center of the support ring 73; the left end of the bag body 1 is sleeved on the bottom ring 71, the right end of the bag body 8 is sleeved on the support ring 73, and a fastening mechanism 12 is arranged on the right side of the support ring 73, and the left side of the fastening mechanism 12 is connected to the support ring 7 3 snap fit, the bag mouth part of the bag body 1 is tightly connected and fixed with the side of the bottom ring 71 to ensure that no air leakage occurs when air is taken in, and the fastening mechanism 12 clamps and fixes the bag body 8 and the support ring 73; the fastening mechanism 12 includes a fastening ring 121 and a conical cover 122, the right side of the fastening ring 121 is connected with the left side of the conical cover 122, the left side of the fastening ring 121 is snapped with the support ring 73, and the right side of the conical cover 122 is connected with the auxiliary shaft 6. After the filter bag 8 is inflated, it will swell up and its shape will change. The setting of the conical cover 122 reserves more space to prevent the fastening ring 121 from being too tightly snapped with the filter bag 8, which is not conducive to subsequent separation. At the same time, after wax dyeing, the conical cover 122 can make the wax liquid fall off faster to avoid pollution.

[0062] Embodiment 3:

[0063] Embodiment 3 is substantially the same as Embodiment 1, except that:

[0064] A multi-detection head detection system for filter bag detection, wherein a stabilizing mechanism 15 is sleeved on the side of the auxiliary shaft 6, and the length of the auxiliary shaft 6 is the same as the length of the hollow column 9; the stabilizing mechanism 15 includes a stabilizing block 151 and a connecting strip 152, and a mounting hole 153 is opened on the lower end side of the stabilizing block 151, and the right end of the auxiliary shaft 6 passes through the mounting hole 153 and extends to the right side of the detection platform 1, and the top of the stabilizing block 151 is connected to the bottom of the connecting strip 152; the height of the stabilizing block 151 is less than the height of the connecting strip 152, and the length and width of the stabilizing block 151 are greater than the length and width of the connecting strip 152, and the connecting strip 152 can be increased in weight to make the entire device more stable; the top of the detection platform 1 A groove 3 is provided on the left side of the detection pool 2, and two grooves 4 are provided on the top of the detection platform 1 on the right side of the detection pool 2. The hollow column 9 is embedded in the one groove 3, and the auxiliary shaft 6 is embedded in the two grooves 4; the one groove 3 and the two grooves 4 are both connected to the detection pool 2, the one groove 3 and the two grooves 4 are the same size, and their depths are less than the depth of the detection pool 2. The diameter of the hollow column 9 is adapted to the caliber of the one groove 3, so that the rotation of the auxiliary shaft 6 and the hollow column 9 can be more stable, and the wax dyeing effect can be better; the longitudinal section of the detection pool 2 is arc-shaped, the curvature of the detection pool 2 is the same as the curvature of the mounting plate 5, and the sum of the lengths of the mounting plate 5, the frame 7, and the fastening mechanism 12 is the same as the length of the detection pool 2.

[0065] Embodiment 4:

[0066] Embodiment 4 is substantially the same as Embodiment 1, except that:

[0067] A multi-detection head detection system for filter bag detection, the frame 7 also includes a cylinder 16 and a plurality of through holes 14, the side of the cylinder 16 is equidistantly distributed with a plurality of through holes 14, one end of the cylinder 16 is connected to the mounting plate 5, the other end of the cylinder 16 is connected to the fastening mechanism 12, and the bag body 8 is sleeved on the cylinder 16.

[0068] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A multi-detection head detection system for filter bag detection, characterized in that The multi-detection head detection system for filter bag detection comprises a detection platform (1), a detection pool (2), a mounting plate (5), a frame (7), a hollow column (9) and a ventilation column (10); A detection pool (2) is provided at the center of the top of the detection platform (1), and wax liquid (21) is provided in the detection pool (2); The detection platform (1) is provided with a mounting plate (5), the mounting plate (5) and the detection platform (1) are slidably matched, the right side of the mounting plate (5) is connected to the left side of the frame (7), a bag body (8) is sleeved on the side of the frame (7), and the left end of the bag body (8) is connected to the bottom ring (71) of the frame (7); The left side of the mounting plate (5) is connected to the right side of the hollow column (9), the mounting plate (5) rotates with the hollow column (9), the left side of the ventilation column (10) is connected to the right side of the mounting plate (5), the hollow column (9) is connected to the ventilation column (10), and the side periphery of the ventilation column (10) is evenly provided with a plurality of ventilation holes (11); The multi-detection head detection system for filter bag detection adopts the following method for detection, which is as follows: The bag body (8) is mounted on the frame (7), and the hollow column (9) is then driven to rotate, thereby driving the mounting plate (5) and the bag body (8) on the frame (7) to move toward the detection pool (2). When the bag body (8) moves to the top of the detection pool (2), the bag body (8) on the frame (7) is lowered into the detection pool (2). The hollow column (9) is then rotated no more than three times so that the surface of the bag body (8) is fully in contact with the wax liquid. After the paraffin wax is completely solidified, the hollow column (9) is driven to move to the front end of the detection platform (1). Finally, gas is injected into the hollow column (9). The gas fills the bag body (8) into a cylindrical shape through the vent hole (11) on the vent column (10). The paraffin wax cracks and the degree of rupture on the surface of the bag body (8) are observed to determine the broken position of the bag body (8) and accurately locate the damaged position of the filter bag.

2. The multi-detection head detection system for filter bag detection according to claim 1, characterized in that: Two lifting mechanisms (13) are arranged on the side periphery of the hollow column (9), and the two lifting mechanisms (13) are located on the left side of the detection platform (1).

3. The multi-detection head detection system for filter bag detection according to claim 1, characterized in that: The wax liquid (21) includes plant wax, animal wax, mineral wax or synthetic wax.

4. The multi-detection head detection system for filter bag detection according to claim 1, characterized in that: The frame (7) comprises a bracket (72) and a support ring (73), the left side of the bottom ring (71) is connected to the right side of the mounting plate (5), the right side of the bottom ring (71) is connected to the left side of the bracket (72), the right side of the bracket (72) is connected to the left side of the support ring (73), and the right side of the ventilation column (10) is connected to the left center of the support ring (73); The left end of the bag body (8) is sleeved on the bottom ring (71), and the right end of the bag body (8) is sleeved on the support ring (73). A fastening mechanism (12) is provided on the right side of the support ring (73). The left side of the fastening mechanism (12) is engaged with the support ring (73), and the fastening mechanism (12) clamps and fixes the bag body (8) and the support ring (73).

5. The multi-detection head detection system for filter bag detection according to claim 4, characterized in that: The fastening mechanism (12) comprises a fastening ring (121) and a conical cover (122); the right side of the fastening ring (121) is connected to the left side of the conical cover (122); the left side of the fastening ring (121) is engaged with the support ring (73); and the right side of the conical cover (122) is connected to the auxiliary shaft (6).

6. A multi-detection head detection system for filter bag detection according to claim 5, characterized in that: A stabilizing mechanism (15) is sleeved on the side periphery of the auxiliary shaft (6), and the length of the auxiliary shaft (6) is the same as that of the hollow column (9).

7. The multi-detection head detection system for filter bag detection according to claim 6, characterized in that: The stabilizing mechanism (15) comprises a stabilizing block (151) and a connecting bar (152); a mounting hole (153) is provided on the side surface of the lower end of the stabilizing block (151); the right end of the auxiliary shaft (6) passes through the mounting hole (153) and extends to the right side of the detection platform (1); and the top of the stabilizing block (151) is connected to the bottom of the connecting bar (152); The height of the stabilizing block (151) is smaller than the height of the connecting strip (152), and the length and width of the stabilizing block (151) are both larger than the length and width of the connecting strip (152).

8. The multi-detection head detection system for filter bag detection according to any one of claims 4 to 7, characterized in that: The top of the detection platform (1) is located on the left side of the detection pool (2) and has a groove (3), and the top of the detection platform (1) is located on the right side of the detection pool (2) and has two grooves (4), the hollow column (9) is embedded in one groove (3), and the auxiliary shaft (6) is embedded in the second groove (4).

9. A multi-detection head detection system for filter bag detection according to claim 8, characterized in that: The first groove (3) and the second groove (4) are both connected to the detection pool (2); the first groove (3) and the second groove (4) are of the same size, and their depths are less than the depth of the detection pool (2); and the diameter of the hollow column (9) is compatible with the caliber of the first groove (3); The longitudinal section of the detection pool (2) is in the shape of an arc, the curvature of the detection pool (2) is the same as the curvature of the mounting plate (5), and the sum of the lengths of the mounting plate (5), the frame (7) and the fastening mechanism (12) is the same as the length of the detection pool (2).

10. The multi-detection head detection system for filter bag detection according to claim 3, characterized in that: The frame (7) further comprises a cylinder (16) and a plurality of through holes (14); the side surface of the cylinder (16) is provided with a plurality of through holes (14) distributed around the cylinder at equal distances; one end of the cylinder (16) is connected to the mounting plate (5); the other end of the cylinder (16) is connected to the fastening mechanism (12); and the bag body (8) is sleeved on the cylinder (16).

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