A waste gas purification device for plant air pollution

Abstract

The application relates to the technical field of special equipment for environmental protection, in particular to a waste gas purification device for plant air pollution. The device comprises a shell, air inlet pipes and air outlet pipes are arranged on the two sides of the shell, a lower supporting plate is fixedly connected in the shell, a pulser is arranged on the shell, an upper supporting plate is fixedly connected in the shell, a plurality of groups of filter bags are arranged on the upper supporting plate in a spaced distribution mode, first heavy blocks are fixedly connected to the bottoms of the filter bags, straight gears are fixedly connected to the first heavy blocks, and a plurality of straight racks are slidably connected to the lower supporting plate in a spaced distribution mode. The filter bags are twisted, stubborn stains on the filter bags are cracked and fall off, the probability that the filter bags are difficult to clean due to the adhesion of dry block impurities after being dried after being wet is reduced, the filtering efficiency of the filter bags is ensured, the opportunities for operators to contact harmful dust and chemical substances are reduced, and pneumoconiosis, dermatitis and other occupational diseases are effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment technology, and in particular to a waste gas purification device for factory air pollution. Background Technology

[0002] Baghouse dust collectors are widely used in factory air pollution control. However, during long-term use, the filter bags of baghouse dust collectors will accumulate moist impurities (such as water-containing dust) on their surface. These moist impurities will dry on the filter bags and clump together due to accumulation. Conventional pulse jet cleaning is insufficient to clean these dried and clump-like impurities, which will cause the filter pores on the filter bags to become clogged, resulting in a decrease in filtration efficiency. In order to restore the filtration performance of the filter bags, operators often need to manually knock and replace the filter bags. Frequent exposure to the high concentration of harmful dust and chemicals adsorbed on the filter bags will significantly increase the risk of operators developing occupational diseases such as pneumoconiosis and dermatitis. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a waste gas purification device for factory air pollution.

[0004] The technical solution of the present invention is as follows: a waste gas purification device for factory air pollution, comprising a shell, an air inlet pipe and an exhaust pipe respectively installed on both sides of the shell, a lower support plate fixedly connected inside the shell, a pulse generator installed in the shell, an upper support plate fixedly connected inside the shell, and a plurality of filter bags spaced apart on the upper support plate, each group of filter bags having a plurality of filter bags spaced apart, a first weight fixedly connected to the bottom of each filter bag, a spur gear fixedly connected to the first weight, and a plurality of spur racks spaced apart slidably connected to the lower support plate, the number of spur racks being the same as the number of groups of filter bags, and the spur gear meshing with the corresponding spur rack.

[0005] Preferably, all the straight racks are fixedly connected to a connecting plate that is slidably and sealingly connected to the outer shell. A plurality of first elastic elements are fixedly connected between the connecting plate and the outer shell. A plurality of reciprocating racks are fixedly connected to the connecting plate. An electric roller is rotatably connected to the outer shell. The electric roller is fixedly connected to a number of missing gears that are the same number as the number of reciprocating racks. The missing gears are used to drive the corresponding reciprocating racks.

[0006] Preferably, the first weight is fixedly connected to a limiting pin, and the lower support plate is fixedly connected to a limiting plate with the same number of limiting pins. The limiting plate is provided with a limiting groove, and the limiting pin slides in adjacent limiting grooves.

[0007] Preferably, the lower support plate is fixedly connected with protective shells that are spaced apart and have the same number as the number of spur racks. Both sides of the protective shells are sealed and fitted to the inner wall of the outer shell. The protective shells are used to shield the spur gears, the spur racks, the limiting pins, the limiting plates, and the limiting grooves.

[0008] Preferably, the upper part of the protective shell is provided with symmetrically distributed guide slopes, the lower support plate is provided with a plurality of through holes spaced apart, and the protective shell is located between two adjacent through holes.

[0009] Preferably, the lower support plate is fixed with a number of support blocks that are the same as the number of filter bags.

[0010] Preferably, the support block is made of an elastic material, and the support block is fixedly connected to a sliding plate that is slidably connected to the lower support plate. The sliding plate is used to support the adjacent first weight block.

[0011] Preferably, the filter bag is provided with a deformable part, and the deformable part is fixedly connected to a circumferentially evenly distributed extrusion block, which is used to drive the adjacent deformable parts to move.

[0012] Preferably, the upper support plate is fixedly connected to a number of connecting strips equal to the number of filter bags. The connecting strips are fixedly connected to connecting ropes. The connecting ropes are fixedly connected to a second weight and a trigger block. A second elastic element is fixedly connected between the trigger block and the adjacent connecting strip. The trigger block is used to compress all the compression blocks on the adjacent deformable parts to move.

[0013] Preferably, the upper support plate is fixedly connected with a number of baffles equal to the number of extrusion blocks, and the baffles are used to limit the movement of adjacent extrusion blocks and adjacent deformed parts.

[0014] Compared with the prior art, this application has at least the following beneficial effects: The present invention, through the twisting of the filter bag, causes stubborn stains on the filter bag to crack and fall off, reducing the probability of cleaning the filter bag due to the adhesion of wet and then dried clumps of impurities, thus ensuring the filtration efficiency of the filter bag. This reduces the opportunity for operators to be exposed to harmful dust and chemicals, effectively preventing occupational diseases such as pneumoconiosis and dermatitis. The rapid rotation of the filter bag mimics the process of fabric quickly shaking to remove dust. Furthermore, during the rapid rotation of the filter bag, the guide of the limiting pin by the limiting groove causes the first weight to pull the lower part of the filter bag downwards rapidly, stretching the filter bag. The filter bag is shaken off stubborn impurities, ensuring its filtration efficiency. A sliding plate supports the first weight to reduce deformation caused by long-term suspension, thus ensuring the accuracy of the filter pores. When the filter bag deforms due to the weight of impurities, the first weight moves downwards to stretch it, reducing the probability of dust accumulation and clogging of the filter pores caused by wrinkles, ensuring normal use. During the rotation and stretching process, the deformed parts of the filter bag expand rapidly in all directions, shaking off impurities and ensuring the filter bag's filtration efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the outer casing of the present invention; Figure 3 This is a three-dimensional structural diagram of the support plate and filter bag of the present invention; Figure 4 This is a three-dimensional sectional view of the support plate of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the filter bag of the present invention; Figure 6 This is a three-dimensional structural diagram of the support block and sliding plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the deformable part and the baffle of the present invention.

[0016] The markings in the diagram are as follows: 1-Outer shell, 101-Inlet pipe, 102-Exhaust pipe, 103-Lower support plate, 2-Pulse generator, 3-Upper support plate, 4-Filter bag, 5-First weight, 6-Spur gear, 7-Spur rack, 8-Connecting plate, 801-First elastic element, 9-Reciprocating rack, 10-Electric roller, 11-Missing gear, 12-Limiting pin, 13-Limiting plate, 14-Limiting groove, 15-Protective shell, 16-Through hole, 17-Support block, 18-Sliding plate, 19-Connecting strip, 20-Connecting rope, 21-Second weight, 22-Trigger block, 23-Second elastic element, 24-Squeezing block, 25-Deformation part, 26-Baffle. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] Example 1 A waste gas purification device for factory air pollution, such as Figures 1-7As shown, the device includes a housing 1, which has a control terminal (not shown in the figure). An intake pipe 101 and an exhaust pipe 102 are installed on the right and left sides of the housing 1, respectively. A lower support plate 103 is fixed inside the housing 1. A pulse generator 2, electrically connected to the control terminal, is installed in the housing 1. An upper support plate 3 is fixed inside the housing 1, located between the intake pipe 101 and the exhaust pipe 102. The intake pipe 101 is located below the exhaust pipe 102. Several sets of filter bags 4 are spaced apart on the upper support plate 3. Each set of filter bags 4 contains... The filter bags 4 are arranged in a series of pulse nozzles, each with a number of pulse nozzles that are spaced apart. Each pulse nozzle 4 is located directly below an adjacent pulse nozzle. A first weight 5 is fixedly connected to the bottom of each filter bag 4, and a spur gear 6 is fixedly connected to the first weight 5. A lower support plate 103 is slidably connected to a series of spaced-apart racks 7, the number of which is the same as the number of filter bags 4. The spur gear 6 meshes with the corresponding rack 7. All racks 7 are connected to a connecting plate 8 that is slidably and sealingly connected to the outer casing 1. The connecting plate 8 and the outer casing 1 are... A plurality of first elastic elements 801 are fixedly connected, wherein the first elastic elements 801 are compression springs. A plurality of reciprocating racks 9 are fixedly connected to the connecting plate 8. An electric roller 10 electrically connected to the control terminal is rotatably connected to the outer casing 1. The electric roller 10 is fixedly connected to a number of missing gears 11, the same number as the number of reciprocating racks 9. When the missing gears 11 mesh with the reciprocating racks 9, the missing gears 11 drive the corresponding reciprocating racks 9, causing the reciprocating racks 9 to drive the connecting plate 8 forward. The first elastic elements 801 are compressed. The connecting plate 8 drives all the straight racks 7 through all the straight racks 7. The gear 6, through the first weight 5, drives the lower part of the filter bag 4 to rotate, causing the upper and lower parts of the filter bag 4 to twist relative to each other. At the same time, the pulse generator 2 cleans the filter bag 4. The twisting of the filter bag 4 causes stubborn stains on the filter bag 4 to crack and fall off, reducing the probability of cleaning the filter bag 4 due to the adhesion of wet and then dried clumps of impurities. This ensures the filtration efficiency of the filter bag 4, thereby reducing the opportunity for operators to be exposed to harmful dust and chemicals, and effectively preventing occupational diseases such as pneumoconiosis and dermatitis.

[0019] After the missing gear 11 rotates until it loses engagement with the reciprocating rack 9, the first elastic element 801 rebounds and drives the connecting plate 8 and the reciprocating rack 9 to move backward and reset quickly. This causes the spur rack 7, all the spur gears 6 and the first weight 5 to reverse quickly, and the filter bag 4 to rotate quickly. The rapid rotation of the filter bag 4 mimics the process of the fabric being quickly shaken to remove dust, thus shaking off stubborn impurities (such as wet and dried clumps) adhering to the filter bag 4 and ensuring the filtration efficiency of the filter bag 4.

[0020] like Figures 5-7As shown, the first weight 5 is fixedly connected to a limiting pin 12, and the lower support plate 103 is fixedly connected to a limiting plate 13 with the same number of limiting pins 12. The limiting plate 13 is provided with a limiting groove 14, which is an arc-shaped groove with one end higher than the other. During the rotation of the first weight 5, the first weight 5 drives the limiting pins 12 to rotate. At the same position of the first weight 5, two limiting pins 12, two limiting plates 13, and two limiting grooves 14 can be centrally symmetrically distributed to ensure the stability of the up and down movement of the first weight 5. The limiting pins 12 slide within the adjacent limiting grooves 14, so that the limiting pins 12 slide towards the limit plate 14. The first weight 5 moves upward, causing the first weight 5 to move upward. The first weight 5 causes the spur gear 6 and the lower part of the filter bag 4 to move upward. The height of the spur rack 7 is greater than the height of the spur gear 6 to ensure that the spur gear 6 meshes with the corresponding spur rack 7 during the up-and-down movement. During the reverse rotation of the first weight 5, the first weight 5 causes the limiting pin 12 to slide rapidly downward along the adjacent limiting groove 14, so that the first weight 5 causes the lower part of the filter bag 4 to move rapidly downward, stretching the filter bag 4 and shaking off the stubborn impurities (such as wet and dried clumps) adhering to the filter bag 4, thus ensuring the filtration efficiency of the filter bag 4.

[0021] like Figures 3-6 As shown, the lower support plate 103 is fixedly connected with protective shells 15 spaced apart and in the same number as the spur racks 7. The front and rear sides of the protective shells 15 are sealed to the inner wall of the outer shell 1. The bottom of the filter bag 4 passes through the adjacent protective shell 15. An elastic cloth (not shown in the figure) is fixed between the filter bag 4 and the adjacent protective shell 15. During the movement of the filter bag 4, the elastic cloth is used to seal the gap between the adjacent filter bag 4 and the adjacent protective shell 15. The protective shells 15 are used to protect the spur gears 6, spur racks 7, limit pins 12, limit plates 13 and limit grooves 14. To reduce the probability of damage to parts caused by dust entering between them, thereby extending the service life of the device, the upper part of the protective shell 15 is provided with two symmetrically distributed guide slopes, and the lower support plate 103 is provided with several through holes 16 spaced apart. The protective shell 15 is located between two adjacent through holes 16. When dust falls off the filter bag 4, the dust falls into the bottom of the outer shell 1 through the through holes 16. The dust falling on the protective shell 15 enters the through holes 16 along the guide slopes on it, and finally falls into the bottom of the outer shell 1 as well.

[0022] The specific workflow is as follows: When this device is needed to purify the air in the factory, the exhaust gas enters the outer casing 1 through the inlet pipe 101. The filter bag 4 intercepts impurities (such as dust) in the exhaust gas. The gas filtered by the filter bag 4 is discharged through the exhaust pipe 102. During this process, the pulse generator 2 is turned on through the control terminal. The pulse generator 2 cleans all the filter bags 4 periodically. When the dust on the filter bag 4 falls off, the dust falls into the bottom of the outer casing 1 through the through hole 16. The dust that falls on the protective shell 15 enters the through hole 16 along the guide slope on it, and finally falls into the bottom of the outer casing 1 as well.

[0023] During the dust removal process of filter bag 4, the electric roller 10 is activated by the control terminal. The electric roller 10 drives all the gears 11 to rotate. When the gears 11 mesh with the reciprocating rack 9, the gears 11 drive the reciprocating rack 9, causing the reciprocating rack 9 to drive the connecting plate 8 forward. The first elastic element 801 is compressed. The connecting plate 8 drives all the spur gears 6 through all the spur racks 7. The spur gears 6 drive the lower part of filter bag 4 to rotate through the first weight 5, causing the upper and lower parts of filter bag 4 to twist relative to each other. At the same time, the pulse generator 2 cleans the filter bag 4. By using the twisting of the filter bag 4, stubborn stains on the filter bag 4 crack and fall off, reducing the probability of filter bag 4 being difficult to clean due to the adhesion of wet and then dried clumps of impurities. This ensures the filtration efficiency of filter bag 4, thereby reducing the opportunity for operators to be exposed to harmful dust and chemicals, and effectively preventing occupational diseases such as pneumoconiosis and dermatitis.

[0024] When the missing gear 11 rotates until it loses engagement with the reciprocating rack 9, the first elastic element 801 rebounds and drives the connecting plate 8 and the reciprocating rack 9 to move backward and reset quickly. This causes the spur rack 7, all the spur gears 6 and the first weight 5 to reverse rapidly, and the filter bag 4 to rotate rapidly. The rapid rotation of the filter bag 4 mimics the process of the fabric being shaken quickly to remove dust, thus shaking off stubborn impurities (such as wet and dried clumps) adhering to the filter bag 4 and ensuring the filtration efficiency of the filter bag 4.

[0025] During the rotation of the first weight 5, the first weight 5 drives the limiting pin 12 to rotate. The limiting pin 12 slides in the adjacent limiting groove 14, causing the limiting pin 12 to move upward and drive the first weight 5 to move upward. The first weight 5 drives the spur gear 6 and the lower part of the filter bag 4 to move upward. The height of the spur rack 7 is greater than the height of the spur gear 6 to ensure that the spur gear 6 meshes with the corresponding spur rack 7 during the up and down movement. During the reverse rotation of the first weight 5, the first weight 5 drives the limiting pin 12 to slide rapidly downward along the adjacent limiting groove 14, causing the first weight 5 to drive the lower part of the filter bag 4 to move rapidly downward, stretching the filter bag 4 and shaking off the stubborn impurities (such as wet and dried clumps) adhering to the filter bag 4, thus ensuring the filtration efficiency of the filter bag 4.

[0026] After using the device, no more exhaust gas is injected into the intake pipe 101, and the pulse generator 2 and electric roller 10 are turned off through the control terminal.

[0027] Example 2 Based on Example 1, such as Figures 5-7 As shown, the lower support plate 103 is fixedly connected to a number of support blocks 17 equal to the number of filter bags 4. The support blocks 17 are made of elastic material. The support blocks 17 are fixedly connected to the lower support plate 103 at its lower part. The support blocks 17 are fixedly connected to a sliding plate 18 that is slidably connected to the lower support plate 103. The sliding plate 18 supports the adjacent first weight block 5 to reduce the amount of deformation of the filter bag 4 due to long-term suspension, thereby ensuring the accuracy of the filter holes on the filter bag 4 and improving the filtration effect of the filter bag 4. Furthermore, when the filter bag 4 deforms due to the gravity of the impurities on it, the first weight block 5 moves downward with the deformation of the filter bag 4, stretching the filter bag 4. The sliding plate 18 moves downward (the supporting force of the sliding plate 18 is less than the weight of the first weight block 5), causing the support blocks 17 to deform under pressure. The sliding plate 18 still supports the first weight block 5, and the filter bag 4 remains in a stretched state, reducing the probability of dust accumulation and clogging of the filter holes due to wrinkles on the filter bag 4, thereby ensuring the normal use of the filter bag 4.

[0028] Example 3 Based on Example 2, such as Figures 4-7As shown, the filter bag 4 is provided with a deformable part 25, and the deformable part 25 is fixedly connected to a circumferentially evenly distributed extrusion blocks 24. All opposing sides of the extrusion blocks 24 on the same deformable part 25 are provided with inclined surfaces. The extrusion blocks 24 are used to drive adjacent deformable parts 25 to move, so that the deformable parts 25 expand circumferentially. The upper support plate 3 is fixedly connected to a number of connecting strips 19 equal to the number of filter bags 4. The connecting strips 19 are fixedly connected to connecting ropes 20. The connecting ropes 20 are fixedly connected to a second weight 21 and a trigger block 22. The lower side of the second weight 21 is in contact with the bottom inside the filter bag 4, and the trigger block 22... The lower part of block 22 is frustum-shaped with its diameter gradually decreasing from top to bottom. A second elastic element 23 is fixed between trigger block 22 and the adjacent connecting strip 19. The second elastic element 23 is a tension spring. When trigger block 22 moves downward, it presses the inclined surfaces of all compression blocks 24 on the same deformation part 25, causing all compression blocks 24 to move in all directions, thereby driving the deformation part 25 to expand circumferentially. Initially, the second elastic element 23 is in a stretched and stored state, and the deformation part 25 is in a circumferential expansion state. When the lower part of filter bag 4 moves upward, filter bag 4... The lower part of the filter bag 4 causes the second weight 21 to move upward, the connecting rope 20 to gradually bend, the second elastic element 23 to contract and cause the trigger block 22 to move upward, the deformation part 25 to contract and cause all the compression blocks 24 to move in opposite directions. During the rapid downward movement of the lower part of the filter bag 4, the second weight 21 falls rapidly due to its own gravity and causes the trigger block 22 to move downward through the connecting rope 20. The trigger block 22 moves downward rapidly and squeezes all the compression blocks 24. The deformation part 25 expands rapidly in the circumferential direction. That is, during the rotation and stretching of the filter bag 4, the second weight 21 falls rapidly due to its own gravity and causes the trigger block 22 to move downward. The trigger block 22 moves downward rapidly and squeezes all the compression blocks 24. The deformation part 25 expands rapidly in the circumferential direction. That is, during the rotation and stretching of the filter bag 4, the second weight 21 moves upward, the second elastic element 23 to contract and cause the trigger block 22 to move downward. The ... trigger block 22 moves downward rapidly and squeezes all the compression The deformable part 25 on the filter bag 4 expands rapidly in all directions, shaking off impurities on the filter bag 4 and ensuring the filtration efficiency of the filter bag 4. The upper support plate 3 is fixed with baffles 26 in the same number as the extrusion blocks 24. When the deformable part 25 expands rapidly in all directions, the baffles 26 limit the movement of adjacent extrusion blocks 24 and adjacent deformable parts 25. The extrusion blocks 24 impact the baffles 26 through the deformable part 25, causing the deformable part 25 and the filter bag 4 to vibrate, improving the dust removal efficiency on the filter bag 4 and ensuring the filtration effect of the filter bag 4.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A waste gas purification device for factory air pollution, comprising a housing (1), an inlet pipe (101) and an exhaust pipe (102) respectively installed on both sides of the housing (1), a lower support plate (103) fixedly connected inside the housing (1), a pulse generator (2) installed in the housing (1), an upper support plate (3) fixedly connected inside the housing (1), and a plurality of sets of filter bags (4) spaced apart on the upper support plate (3), each set of filter bags (4) having a plurality of spaced-apart filter bags, characterized in that, It also includes a first weight (5) in the same number as the filter bags (4), the first weight (5) being fixed to the bottom of the corresponding filter bag (4), the first weight (5) being fixed to a spur gear (6), the lower support plate (103) being slidably connected to a plurality of spaced spur racks (7), the number of spur racks (7) being the same as the number of sets of filter bags (4), and the spur gear (6) meshing with the corresponding spur rack (7).

2. The waste gas purification device for factory air pollution according to claim 1, characterized in that, All the straight racks (7) are fixedly connected to a connecting plate (8) that is in a sealed sliding connection with the outer shell (1). A plurality of first elastic elements (801) are fixedly connected between the connecting plate (8) and the outer shell (1). A plurality of reciprocating racks (9) are fixedly connected to the connecting plate (8). An electric roller (10) is rotatably connected to the outer shell (1). A number of missing gears (11) are fixedly connected to the electric roller (10) in the same number as the number of reciprocating racks (9). The missing gears (11) are used to drive the corresponding reciprocating racks (9).

3. The waste gas purification device for factory air pollution according to claim 1, characterized in that, The first weight (5) is fixed with a limiting pin (12), and the lower support plate (103) is fixed with a limiting plate (13) of the same number as the limiting pin (12). The limiting plate (13) is provided with a limiting groove (14), and the limiting pin (12) slides in the adjacent limiting groove (14).

4. The waste gas purification device for factory air pollution according to claim 1, characterized in that, The lower support plate (103) is fixedly connected with protective shells (15) that are spaced apart and have the same number as the spur rack (7). Both sides of the protective shells (15) are sealed and fitted to the inner wall of the outer shell (1). The protective shells (15) are used to shield the spur gear (6), the spur rack (7), the limiting pin (12), the limiting plate (13), and the limiting groove (14).

5. The waste gas purification device for factory air pollution according to claim 4, characterized in that, The upper part of the protective shell (15) is provided with symmetrically distributed guide slopes, and the lower support plate (103) is provided with a number of through holes (16) spaced apart. The protective shell (15) is located between two adjacent through holes (16).

6. The waste gas purification device for factory air pollution according to claim 1, characterized in that, The lower support plate (103) is fixed with a number of support blocks (17) that are the same number as the filter bags (4).

7. The waste gas purification device for factory air pollution according to claim 6, characterized in that, The support block (17) is made of elastic material. The support block (17) is fixedly connected to a sliding plate (18) that is slidably connected to the lower support plate (103). The sliding plate (18) is used to support the adjacent first weight block (5).

8. The waste gas purification device for factory air pollution according to claim 1, characterized in that, The filter bag (4) is provided with a deformation part (25), and the deformation part (25) is fixed with a circumferentially evenly distributed extrusion block (24), which is used to drive the adjacent deformation part (25) to move.

9. A waste gas purification device for factory air pollution according to claim 8, characterized in that, The upper support plate (3) is fixedly connected with a number of connecting strips (19) equal to the number of filter bags (4). The connecting strips (19) are fixedly connected with connecting ropes (20). The connecting ropes (20) are fixedly connected with a second weight (21) and a trigger block (22). The trigger block (22) is fixedly connected with a second elastic element (23) between it and the adjacent connecting strips (19). The trigger block (22) is used to squeeze all the extrusion blocks (24) on the adjacent deformation part (25) to move.

10. A waste gas purification device for factory air pollution according to claim 9, characterized in that, The upper support plate (3) is fixedly connected with a number of baffles (26) equal to the number of extrusion blocks (24). The baffles (26) are used to limit the movement of adjacent extrusion blocks (24) and adjacent deformation parts (25).

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