Feeding system and working method of honeycomb denitrification catalyst drying process

Abstract

This invention discloses a feeding system for drying a honeycomb denitrification catalyst, comprising a feeding unit, a discharging unit, and a drying furnace. The drying furnace has a through drying tunnel, and a linear conveying device is arranged along the length of the drying tunnel. The starting point of the linear conveying device extends to the feeding unit, and the ending point of the linear conveying device extends to the discharging unit. During the feeding process, several strip-shaped honeycomb denitrification catalysts can be stacked into a stacked structure with multiple layers of open space, thereby improving the drying efficiency.

Description

Technical Field

[0001] This invention belongs to the field of honeycomb denitrification catalyst drying. Background Technology

[0002] In the process of drying stacked honeycomb denitrification catalysts, in order to improve the heating uniformity of the stacked honeycomb denitrification catalysts in the drying furnace, asbestos strips are used to support adjacent upper and lower stacked layers during the stacking process of the strip-shaped honeycomb denitrification catalysts. The final stacked structure is as follows: Figure 1 As shown, this stacking structure forms multiple air gaps. The air gaps allow hot air to seep into the gaps between any two adjacent honeycomb denitrification catalyst strips, thus ensuring that each honeycomb denitrification catalyst strip in the stacked structure is heated evenly. This solution provides a feeding system that can realize this stacking structure during the feeding process. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a feeding system and working method for drying honeycomb denitrification catalysts, which can stack several strip-shaped honeycomb denitrification catalysts into a stacked structure with multiple layers of open space during the feeding process, thereby improving the drying efficiency.

[0004] Technical solution: To achieve the above objectives, the feeding system of the honeycomb denitrification catalyst drying process of the present invention includes a feeding unit, a discharging unit and a drying furnace. The drying furnace has a through drying tunnel. A linear conveying device is arranged along the length of the drying tunnel. The starting point of the linear conveying device extends to the feeding unit and the ending point of the linear conveying device extends to the discharging unit.

[0005] The feeding unit includes a first pair of X-direction guide rails and a first pair of Y-direction guide rails; the first pair of X-direction guide rails are fixedly mounted by a fixed bracket, and a first X-direction traveling vehicle is fixedly installed at both ends of the first pair of Y-direction guide rails. The first X-direction traveling vehicle can actively move and displace along the path of the first pair of X-direction guide rails; it also includes a first gripping and adsorption device that can actively move and displace along the extension direction of the first pair of Y-direction guide rails. The lower end of the first gripping and adsorption device can grip several strips of asbestos, and at the same time, the lower end of the first gripping and adsorption device can also adsorb several strips of honeycomb denitrification catalyst.

[0006] Furthermore, the feeding unit is equipped with a stack of strip-shaped honeycomb denitrification catalysts to be dried and a drawer-type asbestos strip storage unit; the stack of strip-shaped honeycomb denitrification catalysts to be dried is composed of several strip-shaped honeycomb denitrification catalysts stacked from bottom to top; each drawer in the drawer-type asbestos strip storage unit contains several asbestos strips arranged in parallel.

[0007] Furthermore, the first gripping and adsorption device includes a pair of Y-direction traveling vehicles, which actively travel and move along the extension direction of the first pair of Y-direction guide rails; a downwardly extending suspension bracket is fixed to the lower side of the connecting frame between the two Y-direction traveling vehicles, and a pair of longitudinal guide rails are fixedly installed inside the suspension bracket, including a longitudinal rack parallel to the longitudinal guide rails, with a guide block on the back of the longitudinal rack guiding and engaging on the longitudinal guide rails; it also includes a drive gear meshing with the longitudinal rack, causing the longitudinal rack to move up and down; a vertically oriented rotary servo motor is fixedly suspended and connected to the lower end of the pair of longitudinal racks through a fixing member, and a suction cup bracket is fixedly connected to the lower rotating output end of the rotary servo motor, with several strip-shaped industrial suction cups arrayed on the lower side of the suction cup bracket; an asbestos strip gripping robot is fixedly connected to one side of the suction cup bracket through a structural frame; when any drawer on the drawer-type asbestos strip storage unit slides out, the asbestos strip gripping robot can grip the strip-shaped asbestos stored in the slid-out drawer.

[0008] Furthermore, the drawer-type asbestos strip storage unit includes a drawer frame, in which several asbestos storage drawers are arranged in an equidistant array from top to bottom. Several horizontal drawer slides are arranged in an equidistant array from top to bottom on both sides of the drawer frame. Each pair of drawer slides corresponds to a set of asbestos storage drawers. At both ends of the drawer frame of each asbestos storage drawer, drawer slide bars are provided that cooperate with the corresponding drawer slide bars. The drawer slide bars guide and cooperate with the corresponding drawer slide bars.

[0009] Furthermore, the inner side of the drawer frame is fixedly provided with several parallel strip supports, and an asbestos strip can be placed on the upper side of each strip support along its length; when any group of asbestos storage drawers slides out along the drawer slide rail, the tops of each asbestos strip stored in the asbestos storage drawer are exposed.

[0010] Furthermore, each asbestos storage drawer has a coupling female component fixedly installed at the rear of its drawer frame; the drawer-type asbestos strip storage unit also includes a guide rail base, on which a vertical guide rail is fixedly installed, and a lifting slider that can actively move up and down along the vertical guide rail. A lifting cantilever is fixedly connected to the lifting slider, and several sets of linear telescopic devices parallel to the drawer slide rail are fixedly installed on the lifting cantilever. A floating beam is arranged parallel to the side of the lifting cantilever near the drawer frame, and the ends of the telescopic rods of the several sets of linear telescopic devices are all perpendicularly connected to the floating beam; a coupling male component that cooperates with the coupling female component is fixedly installed on the floating beam. When the floating beam moves up and down to the same height as any asbestos storage drawer, the coupling male component on the floating beam and the coupling female component at the rear of the asbestos storage drawer of the same height enter a coupling state. In the coupling state, the coupling female component and the coupling male component are synchronized along the extension direction of the drawer slide rail.

[0011] Furthermore, the coupling component includes a columnar laser emitting tube vertically fixed on the floating beam, with its tail secured by locking bolts. A disc-shaped coupling head is coaxially fixedly connected to the end of the laser emitting tube near the asbestos storage drawer, the outer diameter of which is larger than the outer diameter of the columnar laser emitting tube. The laser emitting end of the columnar laser emitting tube is at the geometric center of the end face of the disc-shaped coupling head. The coupling mother component includes a mother base fixed to the tail of the drawer frame, with parallel side arms vertically connected to the mother base. Each of the two parallel side arms has a section at its end that faces towards each other. A vertically bent section near one side forms a through-hole between the two bent sections. The width of the through-hole is between the outer diameter of the cylindrical laser emitter tube and the outer diameter of the disc-shaped coupling head. The middle of the two arms is fixedly connected by a crossbeam parallel to the base of the parent component. The enclosed area formed by the crossbeam, the two arms, and the two bent sections forms a semi-enclosed, vertically connected bayonet. From a top-down view, the bayonets on each coupling parent component distributed from top to bottom coincide, and the disc-shaped coupling head is semi-enclosed within the bayonet. From a top-down view, the through-holes on each coupling parent component distributed from top to bottom coincide.

[0012] Each asbestos storage drawer is equipped with an electronic locking device. Under normal circumstances, the electronic locking device is locked, preventing the drawer slide rails on the side of the asbestos storage drawer from sliding relative to each other. This avoids the problem of the asbestos storage drawer sliding out due to being pushed or accidentally touched.

[0013] A laser signal receiving unit is installed on one side of the base of the mother component near the crossbeam. A laser through hole is installed horizontally and vertically through the middle of the crossbeam. When the disc-shaped coupling head moves up and down to the center of the bayonet of any coupling mother component, the laser beam emitted by the laser emitting end at the geometric center of the disc-shaped coupling head passes through the laser through hole and is projected onto the laser signal receiving unit on the base of the mother component. When the laser signal receiving unit on the base of the mother component receives the laser signal, the electronic locking device on the corresponding asbestos storage drawer automatically unlocks.

[0014] Furthermore, the working method of the drawer-type asbestos strip storage unit of the feeding system in the honeycomb denitrification catalyst drying process is as follows: When a certain asbestos storage drawer needs to slide out, this asbestos storage drawer is designated as asbestos storage drawer a. The floating beam is controlled to slowly move longitudinally. When the laser signal receiving unit on the parent component base receives the laser signal, the electronic locking device on asbestos storage drawer a is controlled to automatically unlock. At the same time, when the laser signal receiving unit on the parent component base of asbestos storage drawer a receives the laser signal, the controller immediately stops the lifting slider. Then, the telescopic rods of several sets of linear telescopic devices are controlled to extend, and asbestos storage drawer a slides out under the thrust of the forward-moving disc-shaped coupling head.

[0015] Beneficial effects: The present invention can stack several strip-shaped honeycomb denitrification catalysts into a stacked structure with multiple layers of open space during the feeding process of the drying oven, thereby improving the drying efficiency; at the same time, in the specific structure of the drawer-type asbestos strip storage unit, the required drawer can be automatically slid out and returned to its original position, while being locked in a normal state to prevent the asbestos storage drawer from being pushed or accidentally slid out. Attached Figure Description

[0016] Appendix Figure 1 The stacking structure is for items to be dried;

[0017] Appendix Figure 2 This is a schematic diagram of the overall equipment structure in this solution;

[0018] Appendix Figure 3 This is a front view of the overall equipment in this plan;

[0019] Appendix Figure 4 This is the main equipment collection at the material unloading unit;

[0020] Appendix Figure 5 This is a schematic diagram of the first grasping and adsorption device.

[0021] Appendix Figure 6 This is a schematic diagram of a drawer-type asbestos strip storage unit.

[0022] Appendix Figure 7 A schematic diagram of a single asbestos storage drawer structure;

[0023] Appendix Figure 8 For the appendix Figure 7 An enlarged view of mark 14;

[0024] Appendix Figure 9 For the appendix Figure 6 A partial top-view schematic diagram of the coupling component;

[0025] Appendix Figure 10 This is a schematic diagram showing the coupling parent component and the coupling male component before they are coupled.

[0026] Appendix Figure 11 This is a schematic diagram of the coupling between the female component and the male component. Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] As attached Figures 1 to 11 The feeding system of the honeycomb denitrification catalyst drying process shown is as follows: Figure 3It includes a feeding unit 60, a discharging unit 61, and a drying oven 34. The drying oven 34 has a through drying tunnel. A linear conveyor 90 is installed along the length of the drying tunnel. The starting point of the linear conveyor 90 extends to the feeding unit 60, and the ending point of the linear conveyor 90 extends to the discharging unit 61.

[0029] like Figure 1 The feeding unit 60 includes a first pair of X-direction guide rails 28 and a first pair of Y-direction guide rails 30. The first pair of X-direction guide rails 28 are fixedly mounted by a fixed bracket. A first X-direction traveling vehicle 33 is fixedly installed at both ends of the first pair of Y-direction guide rails 30. The first X-direction traveling vehicle 33 can actively move and displace along the path of the first pair of X-direction guide rails 28. It also includes a first gripping and adsorption device 31 that can actively move and displace along the extension direction of the first pair of Y-direction guide rails 30. The lower end of the first gripping and adsorption device 31 can grip several strip-shaped asbestos strips 70. At the same time, the lower end of the first gripping and adsorption device 31 can also adsorb several strip-shaped honeycomb denitrification catalysts 56.

[0030] like Figure 2 The discharge unit 61 includes a second pair of X-direction guide rails 29 and a second pair of Y-direction guide rails 36. The second pair of X-direction guide rails 29 are fixedly mounted by a fixed bracket. A second X-direction traveling vehicle 100 is fixedly installed at both ends of the second pair of Y-direction guide rails 36. The second X-direction traveling vehicle 100 can actively move and displace along the path of the second pair of X-direction guide rails 29. It also includes a second gripping and adsorption device 35 that can actively move and displace along the extension direction of the second pair of Y-direction guide rails 36. The lower end of the second gripping and adsorption device 35 can grip several strip-shaped asbestos strips 70. At the same time, the lower end of the second gripping and adsorption device 35 can also adsorb several strip-shaped honeycomb denitrification catalysts 56.

[0031] The feeding unit 60 is equipped with a strip honeycomb denitrification catalyst stack 52 to be dried, which consists of several strip honeycomb denitrification catalysts 56 stacked from bottom to top.

[0032] The feeding unit 60 is also equipped with a drawer-type asbestos strip storage unit 51, and each drawer in the drawer-type asbestos strip storage unit 51 stores several asbestos strips 70 arranged in parallel.

[0033] The first gripping and adsorption device 31 and the second gripping and adsorption device 35 have the same structure and principle; therefore, this solution mainly introduces the specific structure of one side of the feeding unit 60.

[0034] like Figure 5The first gripping and adsorption device 31 includes a pair of Y-direction traveling vehicles 38, which actively travel and move along the extension direction of the first pair of Y-direction guide rails 30. A downwardly extending suspension bracket 40 is fixed to the lower side of the connecting frame 37 between the two Y-direction traveling vehicles 38. A pair of longitudinal guide rails 41 are fixedly installed inside the suspension bracket 40, including a longitudinal rack 39 parallel to the longitudinal guide rails 41. The guide block on the back of the longitudinal rack 39 guides and engages with the longitudinal guide rails 41 and can slide along the longitudinal guide rails 41. It also includes a drive gear 43 meshing with the longitudinal rack 39. The gear shaft of the drive gear 43 is rotatably mounted on a bearing seat 42 via a bearing. A drive motor 50 is fixedly installed on the suspension bracket 40, and the drive motor 50 drives... A drive gear 43 is connected; under the drive of the drive motor 50, the longitudinal rack 39 moves up and down; the lower ends of a pair of longitudinal racks 39 are fixedly suspended by a fixing member 44 and connected to a vertically oriented rotary servo motor 45. The rotary output end of the rotary servo motor 45 is fixedly connected to a suction cup bracket 47. Several strip-shaped industrial suction cups 46 are arrayed on the lower side of the suction cup bracket 47. Each strip-shaped industrial suction cup 46 can adsorb the strip-shaped honeycomb denitrification catalyst 56; an asbestos strip grasping robot 48 is fixedly connected to one side of the suction cup bracket 47 through a structural frame 49; when any drawer 9 on the drawer-type asbestos strip storage unit 51 slides out, the asbestos strip grasping robot 48 can grasp the strip-shaped asbestos strip 70 stored in the slid-out drawer 9.

[0035] like Figures 7 to 11 As shown, the drawer-type asbestos strip storage unit 51 includes a drawer frame 7, and several asbestos storage drawers 9 are arranged in an equidistant array from top to bottom inside the drawer frame 7. Several horizontal drawer slides 8 are arranged in an equidistant array from top to bottom on both sides of the drawer frame 7. Each pair of drawer slides 8 corresponds to a set of asbestos storage drawers 9. The asbestos storage drawer 9 includes a rectangular drawer frame 11. At both ends of the drawer frame 11 of each asbestos storage drawer 9, drawer slides 10 are provided to cooperate with the corresponding drawer slides 8. The drawer slides 10 are guided and cooperated with the corresponding drawer slides 8.

[0036] Several parallel strip trays 12 are fixedly installed on the inner side of the drawer frame 11, and an asbestos strip 70 can be placed on the upper side of each strip tray 12 along the length direction; when any group of asbestos storage drawers 9 slides out along the drawer slide rail 8, the top of each asbestos strip 70 stored in the asbestos storage drawer 9 is exposed.

[0037] Each asbestos storage drawer 9 has a coupling female part 13 fixedly installed at the end of the drawer frame 11;

[0038] The drawer-type asbestos strip storage unit 51 also includes a guide rail base 3, on which a vertical guide rail 1 is fixedly installed. It also includes a lifting slider 2 that can actively move up and down along the vertical guide rail 1. A lifting cantilever 5 is fixedly connected to the lifting slider 2. Several sets of linear telescopic devices 4 parallel to the drawer slide rail 8 are fixedly installed on the lifting cantilever 5. A floating beam 6 is arranged parallel to the side of the lifting cantilever 5 near the drawer frame 7. The ends of the telescopic rods 161 of the several sets of linear telescopic devices 4 are all vertically connected to the floating beam 6. A coupling male component 14 that cooperates with the coupling female component 13 is fixedly installed on the floating beam 6. When the floating beam 6 moves up and down to the same height as any asbestos storage drawer 9, the coupling male component 14 on the floating beam 6 and the coupling female component 13 at the tail of the asbestos storage drawer 9 of the same height enter the coupling state. In the coupling state, the coupling female component 13 and the coupling male component 14 are synchronous along the extension direction of the drawer slide rail 8.

[0039] The coupling component 14 includes a columnar laser emitting tube 22 vertically fixedly mounted on the floating beam 6. The tail of the laser emitting tube 22 is locked and positioned by a locking bolt. A disc-shaped coupling head 15 is coaxially fixedly connected to one end of the laser emitting tube 22 near the asbestos storage drawer 9. The outer diameter of the disc-shaped coupling head 15 is larger than the outer diameter of the columnar laser emitting tube 22. The laser emitting end 24 of the columnar laser emitting tube 22 is at the geometric center of the end face of the disc-shaped coupling head 15.

[0040] The coupling mother component 13 includes a mother component base 20 fixed to the tail of the drawer frame 11. The mother component base 20 has parallel side arms 27 vertically connected to it. Each of the two parallel side arms 27 has a bent section 17 at its end that bends vertically toward the side that is closer to each other. A through opening 18 is formed between the two bent sections 17. The width of the through opening 18 is between the outer diameter of the cylindrical laser emitting tube 22 and the outer diameter of the disc-shaped coupling head 15. The middle part of the two side arms 27 is fixedly connected by a crossbeam 19 parallel to the mother component base 20. The enclosed area formed by the crossbeam 19, the two side arms 27 and the two bent sections 17 forms a semi-enclosed, vertically and vertically connected bayonet 16.

[0041] From a top-down view, the bayonets 16 on each of the coupling mother parts 13 distributed from top to bottom overlap, and the disc-shaped coupling head 15 is partially enclosed within the bayonets 16; from a top-down view, the through holes 18 on each of the coupling mother parts 13 distributed from top to bottom overlap.

[0042] Each asbestos storage drawer 9 is equipped with an electronic locking device. Under normal circumstances, the electronic locking device is locked, so that the drawer slide 10 on the side of the asbestos storage drawer 9 and the corresponding drawer slide rail 8 cannot slide relative to each other in the locked state, thereby avoiding the problem of the asbestos storage drawer 9 sliding out due to being pushed or accidentally touched.

[0043] A laser signal receiving unit 26 is provided on the side of the mother component base 20 near the crossbeam 19. A laser through hole 25 is provided horizontally and vertically through the middle of the crossbeam 19. When the disc-shaped coupling head 15 moves up and down to the center of the bayonet 16 of any coupling mother component 13, the laser beam emitted by the laser emitting end 24 at the geometric center of the disc-shaped coupling head 15 passes through the laser through hole 25 and is projected onto the laser signal receiving unit 26 on the mother component base 20. When the laser signal receiving unit 26 on the mother component base 20 receives the laser signal, the electronic locking device on the corresponding asbestos storage drawer 9 is automatically unlocked.

[0044] Overall work process:

[0045] Under the action of the drive motor 50 and the rotary servo motor 45 on the first gripping and adsorption device 31, the several strip-shaped industrial suction cups 46 and the asbestos strip gripping robot 48 at the lower end of the first gripping and adsorption device 31 are synchronously raised and lowered and rotated along the rotary servo motor 45; at the same time, under the joint drive of the first X-direction traveling vehicle 33 and the Y-direction traveling vehicle 38, the first gripping and adsorption device 31 can make arbitrary horizontal displacement, so that the several strip-shaped industrial suction cups 46 and the asbestos strip gripping robot 48 can make arbitrary horizontal displacement while making raising and lowering and rotating movements, thus it is possible to control the several strip-shaped industrial suction cups 46 and the asbestos strip gripping robot 48 to reach any target position;

[0046] Includes the following steps:

[0047] Step 1: Control several strip-shaped industrial suction cups 46 to move above the bar honeycomb denitrification catalyst stack 52 to be dried and descend, finally adsorbing several bar honeycomb denitrification catalysts 56 on the top layer of the bar honeycomb denitrification catalyst stack 52 to be dried. Then, control several strip-shaped industrial suction cups 46 to transfer the adsorbed bar honeycomb denitrification catalysts 56 to the conveying starting point of the linear conveying device 90 and release them, thereby forming the first stacking layer at the conveying starting point of the linear conveying device 90.

[0048] Step 2: Control any layer of asbestos storage drawer 9 on the drawer frame 11 to slide horizontally out, so that the top of each asbestos strip 70 stored in the asbestos storage drawer 9 is exposed; then control the asbestos strip gripping robot 48 to move to directly above the horizontally slid-out asbestos storage drawer 9 and descend. Finally, the asbestos strip gripping robot 48 will grab the asbestos strip 70 stored in the horizontally slid-out asbestos storage drawer 9, and then control the asbestos strip gripping robot 48 to transfer the grabbed asbestos strips 70 to the upper side of the first stacking layer at the transmission starting point of the linear conveyor 90 in the previous step.

[0049] Step 3: Following the process in "Step 1", stack the second stacking layer at the starting point of the linear conveyor 90.

[0050] Step 4: Following the process in "Step 2", transfer several asbestos strips 70 to the upper side of the second stacking layer at the starting point of the linear conveyor 90 in the previous step.

[0051] Step 5: Following the process in "Step 1", stack the third stacking layer at the starting point of the linear conveyor 90, ultimately forming a drying stacking structure 102 composed of the first, second, and third stacking layers at the starting point of the conveyor 90, as shown below. Figure 1 As shown, adjacent stacked layers are separated by asbestos strips 70, so that multiple open layers are formed in the stacked structure 102 to be dried, which is conducive to uniform heating in the next step.

[0052] Step six: The linear conveyor 90 conveys the stacked structure 102 to be dried at the starting point to the drying tunnel in the drying oven 34 and performs drying.

[0053] Step 7: The linear conveyor 90 conveys the dried stacked structure 102 in the drying oven 34 to the conveying end point and to the discharge unit 61. Then, the second gripping and adsorption device 35 at the discharge unit 61 removes the dried strip honeycomb denitrification catalyst 56 and asbestos strip 70 from the dried stacked structure 102 at the conveying end point, thus completing one working cycle.

[0054] The specific working method of the drawer-type asbestos strip storage unit 51:

[0055] Under normal circumstances, all asbestos storage drawers 9 are locked by their corresponding electronic locking devices to prevent the asbestos storage drawers 9 from being pushed or accidentally slid out.

[0056] When a certain asbestos storage drawer 9 needs to slide out, this asbestos storage drawer 9 is designated as asbestos storage drawer 9 a. The lifting slider 2 is controlled to slowly move the floating beam 6 longitudinally until the disc-shaped coupling head 15 on the coupling male component 14 is longitudinally moved to the center of the bayonet 16 of the coupling female component 13 at the tail of asbestos storage drawer 9 a. The laser beam emitted by the laser emitting end 24 at the geometric center of the disc-shaped coupling head 15 passes through the laser through hole 25 and is projected onto the laser signal receiving unit 26 on the female component base 20. When the laser signal receiving unit 26 on the female component base 20 receives the laser signal, the electronic locking device on asbestos storage drawer 9 a is controlled to automatically unlock. At the same time, when the laser signal receiving unit 26 on the female component base 20 on asbestos storage drawer 9 a receives the laser signal, the controller immediately stops the lifting slider 2, so that the disc-shaped coupling head 15 and the coupling female component 13 on asbestos storage drawer 9 a enter the coupling state.

[0057] Then, the telescopic rods 161 of several sets of linear telescopic devices 4 are extended, and the asbestos storage drawer 9 slides out under the pushing force of the forward-moving disc-shaped coupling head 15, exposing the tops of each asbestos strip 70 stored in the asbestos storage drawer 9, waiting to be picked up; after the asbestos strips stored in the asbestos storage drawer 9 are taken out, the telescopic rods 161 of several sets of linear telescopic devices 4 are retracted, and the asbestos storage drawer 9 retracts back and returns to its original position under the pulling force of the backward-moving disc-shaped coupling head 15; at this point, the drawer has completed the sliding out and retracting action and returned to its initial state.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A blanking system for a honeycomb denitration catalyst drying process, characterized by: It includes a feeding unit (60), a discharging unit (61) and a drying oven (34). The drying oven (34) has a through drying tunnel. A linear conveying device (90) is arranged along the length of the drying tunnel. The starting point of the linear conveying device (90) extends to the feeding unit (60) and the ending point of the linear conveying device (90) extends to the discharging unit (61). The feeding unit (60) includes a first pair of X-direction guide rails (28) and a first pair of Y-direction guide rails (30); the first pair of X-direction guide rails (28) are fixedly mounted by a fixed bracket, and a first X-direction traveling vehicle (33) is fixedly installed at both ends of the first pair of Y-direction guide rails (30). The first X-direction traveling vehicle (33) can actively travel and move along the path of the first pair of X-direction guide rails (28); it also includes a first gripping and adsorption device (31) that can actively travel and move along the extension direction of the first pair of Y-direction guide rails (30). The lower end of the first gripping and adsorption device (31) can grip several strips of asbestos (70). At the same time, the lower end of the first gripping and adsorption device (31) can also adsorb several strips of honeycomb denitrification catalyst (56). The feeding unit (60) is equipped with a strip-shaped honeycomb denitrification catalyst stack (52) to be dried and a drawer-type asbestos strip storage unit (51); the strip-shaped honeycomb denitrification catalyst stack (52) to be dried is composed of several strip-shaped honeycomb denitrification catalysts (56) stacked from bottom to top; each drawer in the drawer-type asbestos strip storage unit (51) contains several parallel asbestos strips (70). The drawer-type asbestos strip storage unit (51) includes a drawer frame (7), and several asbestos storage drawers (9) are distributed in an equidistant array from top to bottom inside the drawer frame (7). Each asbestos storage drawer (9) has a coupling mother (13) fixedly installed at the tail of the drawer frame (11); the drawer-type asbestos strip storage unit (51) also includes a guide rail base (3), on which a vertical guide rail (1) is fixedly installed, and also includes a lifting slider (2) that can actively move up and down along the vertical guide rail (1), on which a lifting cantilever (5) is fixedly connected, and on which a number of linear telescopic devices (4) parallel to the drawer slide rail (8) are fixedly installed, and on the side of the lifting cantilever (5) near the drawer frame (7) a floating beam is set parallel to it. 6) The ends of the telescopic rods (161) of several sets of linear telescopic devices (4) are all vertically connected to the floating beam (6); the floating beam (6) is fixedly installed with a coupling male component (14) that cooperates with the coupling female component (13). When the floating beam (6) moves up and down to the same height as any asbestos storage drawer (9), the coupling male component (14) on the floating beam (6) and the coupling female component (13) at the tail of the asbestos storage drawer (9) of the same height enter the coupling state. In the coupling state, the coupling female component (13) and the coupling male component (14) that are coupled to each other are synchronized along the extension direction of the drawer slide rail (8).

2. The downer system of the honeycomb de-NOx catalyst drying process according to claim 1, characterized in that: The first gripping and adsorption device (31) includes a pair of Y-direction traveling vehicles (38), which actively travel and move along the extension direction of the first pair of Y-direction guide rails (30); a downwardly extending suspension bracket (40) is fixed on the lower side of the connecting frame (37) between the two Y-direction traveling vehicles (38), and a pair of longitudinal guide rails (41) are fixedly installed inside the suspension bracket (40), including a longitudinal rack (39) parallel to the longitudinal guide rail (41), and a guide block on the back of the longitudinal rack (39) guides and engages with the longitudinal guide rail (41); it also includes a drive gear (43) meshing with the longitudinal rack (39) to make the longitudinal rack (39) move. The movement is up and down; a pair of longitudinal racks (39) are fixedly suspended at the lower end by a fastener (44) and connected to a vertically oriented rotary servo motor (45). The rotary output end of the rotary servo motor (45) is fixedly connected to a suction cup bracket (47). Several strip-shaped industrial suction cups (46) are arrayed on the lower side of the suction cup bracket (47). An asbestos strip grasping robot (48) is fixedly connected to one side of the suction cup bracket (47) by a structural frame (49). When any drawer (9) on the drawer-type asbestos strip storage unit (51) slides out, the asbestos strip grasping robot (48) can grasp the strip-shaped asbestos strip (70) stored in the slid-out drawer (9).

3. The downer system of the honeycomb de-NOx catalyst drying process according to claim 2, characterized in that: The drawer frame (7) has several horizontal drawer slides (8) arranged in an equidistant array from top to bottom on both sides. Each pair of drawer slides (8) corresponds to a set of asbestos storage drawers (9). Each drawer frame (11) of the asbestos storage drawer (9) has drawer slides (10) at both ends that cooperate with the corresponding drawer slides (8). The drawer slides (10) guide and cooperate with the corresponding drawer slides (8).

4. The downer system of the honeycomb de-NOx catalyst drying process according to claim 3, characterized in that: The inner side of the drawer frame (11) is fixedly provided with several parallel strip trays (12), and each strip tray (12) can hold an asbestos strip (70) along its length. When any group of asbestos storage drawers (9) slides out along the drawer slide rail (8), the top of each asbestos strip (70) stored in the asbestos storage drawer (9) is exposed.

5. The feeding system for the honeycomb denitrification catalyst drying process according to claim 1, characterized in that: The coupling male component (14) includes a columnar laser emitting tube (22) vertically fixed on the floating beam (6). The tail of the laser emitting tube (22) is locked and positioned by a locking bolt. A disc-shaped coupling head (15) is coaxially fixed to one end of the laser emitting tube (22) near the asbestos storage drawer (9). The outer diameter of the disc-shaped coupling head (15) is larger than the outer diameter of the columnar laser emitting tube (22). The laser emitting end (24) of the columnar laser emitting tube (22) is at the geometric center of the end face of the disc-shaped coupling head (15). The coupling female component (13) includes a female component base (20) fixed to the tail of the drawer frame (11). Parallel side arms (27) are vertically connected to the female component base (20). The ends of the two parallel side arms (27) each have a section that is vertically bent toward the side that is close to each other. The two bent sections (17) form a through-hole (18), the width of which is between the outer diameter of the cylindrical laser emitter tube (22) and the outer diameter of the disc-shaped coupling head (15); the middle of the two side arms (27) is fixedly connected by a crossbeam (19) parallel to the mother component base (20); the enclosed area formed by the crossbeam (19), the two side arms (27) and the two bent sections (17) forms a semi-enclosed, vertically connected bayonet (16); from a top-down perspective, the bayonet (16) on each coupling mother component (13) distributed from top to bottom coincides, and the disc-shaped coupling head (15) is semi-enclosed within the bayonet (16); from a top-down perspective, the through-hole (18) on each coupling mother component (13) distributed from top to bottom coincides. Each asbestos storage drawer (9) is equipped with an electronic locking device. Under normal circumstances, the electronic locking device is locked, so that the drawer slide (10) on the side of the asbestos storage drawer (9) and the corresponding drawer slide (8) cannot slide relative to each other in the locked state, thereby avoiding the problem of the asbestos storage drawer (9) being pushed or accidentally slid out by human intervention. A laser signal receiving unit (26) is provided on the side of the mother base (20) near the crossbeam (19). A laser through hole (25) is provided in the middle of the crossbeam (19) in a horizontal and vertical direction. When the disc-shaped coupling head (15) moves up and down to the center of the bayonet (16) of any coupling mother (13), the laser beam emitted by the laser emitting end (24) at the geometric center of the disc-shaped coupling head (15) passes through the laser through hole (25) and is projected onto the laser signal receiving unit (26) on the mother base (20). When the laser signal receiving unit (26) on the mother base (20) receives the laser signal, the electronic locking device on the corresponding asbestos storage drawer (9) is automatically unlocked.

6. The working method of the drawer-type asbestos strip storage unit (51) of the feeding system of the honeycomb denitrification catalyst drying process according to claim 5: When a certain asbestos storage drawer (9) needs to slide out, this asbestos storage drawer (9) is denoted as a asbestos storage drawer (9). The floating beam (6) is controlled to slowly move longitudinally. When the laser signal receiving unit (26) on the mother base (20) receives the laser signal, the electronic locking device on a asbestos storage drawer (9) is controlled to automatically unlock. At the same time, when the laser signal receiving unit (26) on the mother base (20) on a asbestos storage drawer (9) receives the laser signal, the controller immediately stops the lifting slider (2). Then, the telescopic rods (161) of several sets of linear telescopic devices (4) are controlled to extend, and a asbestos storage drawer (9) slides out under the thrust of the forward-moving disc coupling head (15).

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