Fault detection equipment for aluminum electrolysis flue gas purification device

Abstract

The utility model discloses fault detection equipment for an aluminum electrolysis flue gas purification device, and solves the problem of poor applicability of fault detection equipment for flue gas purification devices at different heights in the prior art. The device comprises a crawling rail arranged on the pipe wall of the exhaust pipeline, a crawling seat capable of moving up and down along the crawling rail is arranged on the crawling rail, a transmission supporting box is arranged on the crawling seat, a rotating shaft is arranged on the transmission supporting box, and a cantilever beam is arranged on the rotating shaft. And a smoke sensor and a wind power dust removal mechanism corresponding to the smoke sensor are arranged on the cantilever beam. According to the device, the crawling seat is matched with the crawling track, so that the device can freely move in the height direction of the exhaust pipe so as to adapt to exhaust ports with different heights, and the adaptability of the device is improved; and meanwhile, the equipment can flexibly move up and down through the self-crawling crawling seat, so that detection and overhaul under different height working conditions are facilitated, and the overhaul safety and timeliness are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum electrolysis technical field, especially point to a flue gas purification overhauling device. BACKGROUND

[0002] The main pollutants of aluminum electrolysis process are fluorides and a small amount of SO2 and hydrocarbons, and secondly, some alumina dust, therefore, aluminum electrolysis flue gas needs to be purified before being discharged. In the past two years, the aluminum smelting flue gas system has begun to be equipped with desulfurization systems to further purify the aluminum smelting flue gas; such as the flue gas purification treatment device for aluminum electrolysis disclosed in CN 118925362 A, which uses a bag-type dust collector and a spraying process to solve the problem of incomplete purification of the existing flue gas purification treatment device.

[0003] However, to further ensure that the treated flue gas meets the standards, the air discharged from the exhaust port of the flue gas purification device still needs to be monitored after flue gas purification to ensure that the internal dust content reaches the standard value. Usually, sensors are used for sensing detection, and the same sensor detection data can be used to determine whether there is anything unusual or failure in the purification device. However, the sensor stays in the exhaust port of the purification device for a long time, which is easily shielded by dust, reducing the detection accuracy. Moreover, due to the single installation method, the applicability is limited for exhaust ports of different heights. In the prior art, such as the flue gas purification device fault detection equipment disclosed in CN217085124 U, a connecting seat is used to connect the lifting support and the power fault detection equipment main body, and the plug-in fastener is pulled for quick disassembly and assembly. However, it cannot adapt to quick disassembly and assembly at different heights. SUMMARY

[0004] In view of the deficiencies in the above background art, the utility model provides a flue gas purification device fault detection equipment for aluminum electrolysis, which solves the problem of poor applicability of the flue gas purification device fault detection equipment at different heights in the prior art.

[0005] The technical scheme of the utility model is as follows: a flue gas purification device fault detection equipment for aluminum electrolysis, comprising a crawling track arranged on the wall of an exhaust pipe, a crawling seat capable of moving up and down along the crawling track is arranged on the crawling track, a transmission support box is arranged on the crawling seat, a rotating shaft is arranged on the transmission support box, a cantilever beam is arranged on the rotating shaft, a dust sensor and a wind dust removal mechanism corresponding to the dust sensor are arranged on the cantilever beam.

[0006] Further preferably, the crawling track comprises an I-shaped track, a rack rail is arranged on the front cross beam of the I-shaped track; a guide rail groove is formed between the front cross beam and the rear cross beam of the I-shaped track; to ensure smooth directional crawling of the crawling seat.

[0007] Further preferably, the crawling seat comprises a U-shaped seat, both ends of the U-shaped seat are provided with guide wheels matched with the guide rail groove, the inside of the U-shaped seat is provided with a gear meshing with the rack rail, and the gear is in transmission connection with a driving motor arranged on the U-shaped seat. The driving motor drives the gear to move along the rack, so as to realize the up-down movement of the crawling seat along the crawling track.

[0008] Further preferably, the inside of the U-shaped seat is provided with an ear seat, the gear is rotatably arranged on the ear seat, the wheel shaft of the gear is connected with the driving motor, and the driving motor is arranged on one side of the ear seat; the back of the front cross beam and the front of the rear cross beam are provided with corresponding limiting grooves, and the guide wheels move along the limiting grooves.

[0009] Further preferably, the crawling seat further comprises a jacking mechanism, which is symmetrically arranged on both sides of the crawling seat and corresponds to the front cross beam of the I-shaped rail. Specifically, the jacking mechanism comprises a sleeve arranged on the U-shaped seat, a push cylinder is fixedly arranged in the sleeve, a jacking plate is arranged at the telescopic end of the push cylinder, and when the telescopic end of the push cylinder is extended, the jacking plate passes through the through hole arranged on the U-shaped seat and is jacked against the front cross beam of the I-shaped rail; to ensure the stability of the crawling seat at the fixed point.

[0010] Further preferably, a rotating disc is rotatably arranged on the transmission support box, a rotating shaft is fixed on the rotating disc, the bottom of the rotating disc is in transmission connection with a first motor arranged in the transmission support box through a gear pair, and an encoder is arranged on the first motor.

[0011] Further preferably, at least one cantilever beam is arranged on the rotating shaft; the rotating shaft is a hollow pipe shaft, an axial guide groove is arranged on one side of the pipe shaft, and a screw rod arranged in the axial direction is rotatably arranged in the inside of the pipe shaft; one end of the cantilever beam facing the rotating shaft is provided with a connecting arm, the connecting arm passes through the axial guide groove and extends into the pipe shaft, and one end of the connecting arm extending into the pipe shaft is provided with a threaded sleeve threadedly matched with the screw rod; the screw rod is in transmission connection with a second motor arranged in the pipe shaft.

[0012] Further preferably, the wind power dust removal mechanism comprises air outlet nozzles arranged on the cantilever beam, the air outlets of the air outlet nozzles face the smoke dust sensor, and the air outlet nozzles are in communication with a gas pump arranged on the cantilever beam through a pipeline. Specifically, the cantilever beam is symmetrically provided with a front arc-shaped seat and a rear arc-shaped seat, the front arc-shaped seat and the rear arc-shaped seat are arranged on the front and rear sides of the smoke dust sensor respectively, and the air outlet nozzles are uniformly embedded in the front arc-shaped seat and the rear arc-shaped seat.

[0013] The utility model discloses beneficial effect is: the utility model discloses through the cooperation of the crawling seat and the crawling track, realize the free movement of the equipment in the exhaust pipe height direction, to adapt to the exhaust port of different height, improve the adaptability of the device, and realize the flexible movement of the equipment up and down through the crawling seat of self -climbing, be convenient for the detection and overhaul under different height working condition, improve the security and timeliness of overhaul.

[0014] The utility model discloses crawling seat utilize the structure of guide wheel + gear and I -beam rail matching, ensure the stability of equipment crawling, in addition the jacking mechanism further improved the stability of crawling seat and the security of whole equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is the whole side view schematic diagram of the utility model;

[0017] Figure 2 It is the crawling seat and crawling track cooperation state planar view schematic diagram;

[0018] Figure 3 It is the internal structure schematic diagram of the utility model;

[0019] Figure 4 It is the wind power dust removal mechanism elevation view schematic diagram. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiment of the utility model will be described clearly and completely in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without paying the creative labor belong to the scope of the utility model protection.

[0021] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] As shown in Figure 1 As shown in Figure 1, an aluminum electrolysis flue gas purification device fault detection equipment, comprising a crawling track 3 arranged on the pipe wall of the exhaust pipe 1, the crawling track can be segmented and spliced, the crawling track is arranged along the height direction of the exhaust pipe, which can adapt to the detection of exhaust ports of different heights. The crawling track 3 is provided with a crawling seat 2 capable of moving up and down along the crawling track 3, the crawling seat crawls along the crawling track, and the detection and flexible repair of exhaust ports of different heights are carried out. The transmission support box 4 is arranged on the crawling seat 2, the transmission support box serves as a support and has the function of a transmission box at the same time, providing power for the rotation of the shaft; the transmission support box 4 is provided with a shaft 5, and the shaft 5 is provided with a cantilever beam 6; the power output of the transmission support box 4 is transmitted to the shaft, and the shaft drives the cantilever beam to rotate, changing its direction. The cantilever beam 6 is provided with a smoke dust sensor 7 and a wind dust removal mechanism 8 corresponding to the smoke dust sensor 7. The smoke dust sensor 7 can monitor the smoke dust content in the exhaust gas, and judge whether there is anything unusual and fault in the purification device according to the detection data. The wind dust removal mechanism 8 is used for wind dust removal of the smoke dust sensor 7, so as to avoid that the sensor is sheltered by smoke dust for a long time at the exhaust port of the purification device, and improve the detection and measurement accuracy. It should be pointed out that the utility model detection equipment also includes a controller, the crawling seat, the smoke dust sensor and the wind dust removal mechanism are connected with the controller, realizing automatic crawling, detection and dust removal, improving the intelligence of the equipment; at the same time, the detection requirements of exhaust pipes of different heights are met.

[0024] It should be noted that the utility model is improved to the equipment component, and does not involve the improvement of circuit, control program, the utility model only controls the operation and stop of each electronic device through PLC control system, since PLC control system belongs to mature automatic control system in industry, the circuit and control program content of the present application are not repeated.

[0025] As Figure 2 As shown in Fig. 2, embodiment 2, an aluminum electrolysis flue gas purification device fault detection equipment, on the basis of embodiment 1, this embodiment is further optimized, the crawling track 3 in the embodiment includes I-shaped rail 31, the rear beam of the I-shaped rail 31 is fixed on the outer wall of the corresponding exhaust pipe by welding or bolt connection or magnetic attraction connection and the like, to ensure the stability of the I-shaped rail. The I-shaped rail can be spliced in multiple sections to adapt to exhaust pipes of different heights. The front beam of the I-shaped rail 31 is provided with a rack rail 32, the rack rail 32 is arranged along the I-shaped rail, and the height thereof is consistent with the height of the I-shaped rail; the guide rail groove 34 is formed between the front beam and the rear beam of the I-shaped rail 31; the guide rail groove 34 is used for limiting the stable climbing of the crawling seat along the I-shaped rail.

[0026] The crawling seat 2 in the embodiment includes a U-shaped seat 21, which is matched with the I-shaped rail, and the two ends of the U-shaped seat 21 are provided with guide wheels 22 matched with the guide rail groove 34, the guide wheels are located in the guide rail groove 34, the guide groove can limit the guide wheels to move up and down and prevent the guide wheels from being deflected, thereby ensuring the stability. The U-shaped seat 21 is internally provided with a gear 23 engaged with the rack rail 32, and the gear 23 is in transmission connection with a driving motor 24 arranged on the U-shaped seat 21. The driving motor can be electrically connected with a controller, and the driving motor drives the gear to rotate while engaging with the rack rail, thereby driving the U-shaped seat to move up and down, realizing the stable climbing of the crawling seat, adapting to exhaust pipes of different heights, and being good in flexibility and convenient for maintenance.

[0027] In order to improve the stability of the crawling seat as a whole, the U-shaped seat 21 is internally provided with an ear seat 25, and the gear 23 is rotatably arranged on the ear seat 25. The ear seat adopts a double-ear seat, the gear is rotatably connected to the ear seat through a bearing, the shaft of the gear 23 is connected with the driving motor 24, and the driving motor can also be connected with the shaft of the gear through a speed reducer for driving the rotation of the gear. The driving motor 24 is arranged on one side of the ear seat 25, thereby ensuring the stability of the driving motor. In order to ensure the stability of the entire crawling seat, a counterweight can also be arranged on the other side of the ear seat. In order to further improve the stability of the upward and downward movement of the crawling seat, corresponding limiting grooves 33 are arranged on the back of the front beam and the front of the rear beam, thereby limiting the guide wheels, so that the guide wheels 22 can only move along the limiting grooves 33. Since the gear and the rack have self-locking function, the crawling seat can be stabilized at the height after crawling to the moving height, and is good in flexibility and can realize fault maintenance at any time.

[0028] The embodiment 3 is a kind of aluminum electrolysis flue gas purification device fault detection equipment, based on the further optimization of embodiment 1 or 2, the crawling seat 2 in the embodiment also includes top mechanism, top mechanism is symmetrically arranged at the both sides of crawling seat 2 and corresponds with the front beam of I-shaped rail 31;To further improve the stability of crawling seat and the safety of the whole equipment, when crawling seat moves to the appropriate height, top mechanism is supported on I-shaped rail, to ensure the stability of crawling seat.

[0029] As Figure 2 Shown in the embodiment, the top mechanism includes the sleeve 26 arranged on the U-shaped seat 21, and the sleeve is connected to the both sides of the U-shaped seat by flange and bolt. The sleeve 26 is fixedly provided with a push cylinder 27 inside, which can be a telescopic oil cylinder or a telescopic air cylinder. In this embodiment, a telescopic air cylinder is taken as an example. The telescopic end of the push cylinder 27 is provided with a tightening plate 28, which increases the contact area of the cylinder with the I-shaped rail. When the telescopic end of the push cylinder 27 is extended, the tightening plate 28 passes through the through hole in the U-shaped seat 21 and is tightly pressed against the front beam of the I-shaped rail 31. At this time, the U-shaped seat 21 is locked by the meshing of the gear and the rack, and is secondarily locked by the tightening of the push cylinder, so as to ensure that the crawling seat and the whole equipment can be stably positioned at a certain height of the exhaust pipe.

[0030] In the embodiment, the transmission support box 4 is rotatably provided with a rotating disc 41, and the rotating disc is rotatably connected to the wall of the support box through a connecting shaft and a bearing. The rotating shaft 5 is fixed on the rotating disc 41 and can rotate synchronously with the rotating disc. The bottom of the rotating disc 41 is drivingly connected to a first motor 43 arranged in the transmission support box 4 through a gear pair 42. The gear pair includes a driven gear arranged on the rotating shaft of the rotating disc and a driving motor arranged on the output shaft of the first motor. The first motor 43 is provided with an encoder, and a controller controls the rotation of the first motor. In the specific use process, the cantilever beam 6 on the rotating shaft is located at the zero-degree position in the initial position. When the crawling seat drives the equipment to crawl to the preset position, the first motor drives the rotating disc to rotate, thereby driving the rotating shaft and the cantilever beam to rotate. At this time, the cantilever beam 6 is rotated into the exhaust pipe, so that the smoke sensor 7 can work normally.

[0031] It should be noted that the rotating shaft 5 is provided with at least one cantilever beam 6, and the cantilever beam can be provided with one or two or more cantilever beams according to the need. In this embodiment, one cantilever beam is taken as an example. Figure 3As shown, the rotating shaft 5 is a hollow pipe shaft, one side of the pipe shaft is provided with an axial guide groove 52, and an axial screw rod 51 is rotatably arranged in the pipe shaft; that is, the upper and lower ends of the screw rod are rotatably arranged in the pipe shaft through bearings, one end of the cantilever beam 6 towards the rotating shaft 5 is provided with a connecting arm 61, the connecting arm 61 extends into the pipe shaft through the axial guide groove 52, and the axial guide groove serves to limit the connecting arm, so that it can only move up and down along the axial direction; in this embodiment, one end of the connecting arm 61 extending into the pipe shaft is provided with a threaded sleeve 62 threadedly matched with the screw rod 51; the screw rod 51 is in transmission connection with a second motor 53 arranged in the pipe shaft. The second motor drives the screw rod to rotate, and the connecting arm and the cantilever beam are driven to move up and down through the threaded sleeve while the screw rod rotates, so as to adjust the height of the cantilever beam to adapt to exhaust ports of different heights.

[0032] In this embodiment, as a preferred mode, the wind force dust removal mechanism 8 comprises air outlet nozzles 81 arranged on the cantilever beam 6, air outlets of the air outlet nozzles 81 are towards the smoke dust sensor 7, and the air outlet nozzles 81 are in communication with a gas pump 82 arranged on the cantilever beam 6 through a pipeline; the gas pump delivers compressed air to the air outlet nozzles through the pipeline, the nozzles spray air on the smoke dust sensor 7 to remove dust on the surface thereof and ensure the measurement accuracy.

[0033] As shown in the drawings, Figure 4 Specifically, the cantilever beam 6 is symmetrically provided with a front arc-shaped seat 83 and a rear arc-shaped seat 84, the front arc-shaped seat 83 and the rear arc-shaped seat 84 are arranged on the front and rear sides of the smoke dust sensor 7 respectively, and the air outlet nozzles 81 are uniformly embedded in the front arc-shaped seat 83 and the rear arc-shaped seat 84. The front arc-shaped seat 83 and the rear arc-shaped seat 84 wrap the smoke dust sensor 7 as the center, and the air outlet nozzles can spray air on the smoke dust sensor 7 in 360°, so as to achieve omnidirectional dust removal and improve the wind force dust removal efficiency.

[0034] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fault detection device for an aluminum electrolysis flue gas purification apparatus, characterized in that: It includes a crawling track (3) set on the wall of the exhaust pipe (1), a crawling seat (2) that can move up and down along the crawling track (3) is provided on the crawling track (3), a transmission support box (4) is provided on the crawling seat (2), a rotating shaft (5) is provided on the transmission support box (4), a cantilever beam (6) is provided on the rotating shaft (5), a dust sensor (7) and a wind-powered dust removal mechanism (8) corresponding to the dust sensor (7) are provided on the cantilever beam (6).

2. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 1, characterized in that: The crawling track (3) includes an I-beam rail (31), and a rack rail (32) is provided on the front crossbeam of the I-beam rail (31); a guide rail groove (34) is formed between the front crossbeam and the rear crossbeam of the I-beam rail (31).

3. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 2, characterized in that: The crawling seat (2) includes a U-shaped seat (21), with guide wheels (22) at both ends of the U-shaped seat (21) that cooperate with the guide rail groove (34). The U-shaped seat (21) has a gear (23) inside that meshes with the rack rail (32), and the gear (23) is connected to the drive motor (24) on the U-shaped seat (21).

4. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 3, characterized in that: The U-shaped seat (21) is provided with an ear seat (25) inside. The gear (23) is rotatably mounted on the ear seat (25). The axle of the gear (23) is connected to the drive motor (24). The drive motor (24) is located on one side of the ear seat (25). The back of the front crossbeam and the front of the rear crossbeam are provided with corresponding limiting grooves (33). The guide wheel (22) moves along the limiting groove (33).

5. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 3 or 4, characterized in that: The crawler seat (2) also includes a clamping mechanism, which is symmetrically arranged on both sides of the crawler seat (2) and corresponds to the front crossbeam of the I-beam rail (31).

6. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 5, characterized in that: The clamping mechanism includes a sleeve (26) set on the U-shaped seat (21), and a push cylinder (27) is fixedly provided inside the sleeve (26). The telescopic end of the push cylinder (27) is provided with a clamping plate (28). When the telescopic end of the push cylinder (27) extends, the clamping plate (28) passes through the through hole opened on the U-shaped seat (21) and clamps against the front crossbeam of the I-beam rail (31).

7. The fault detection equipment for the aluminum electrolysis flue gas purification device according to any one of claims 1 to 4 or 6, characterized in that: The transmission support box (4) is rotatably provided with a turntable (41), and the rotating shaft (5) is fixed on the turntable (41). The bottom of the turntable (41) is connected to the first motor (43) provided in the transmission support box (4) through a gear pair (42). The first motor (43) is provided with an encoder.

8. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 7, characterized in that: The rotating shaft (5) is provided with at least one cantilever beam (6); the rotating shaft (5) is a hollow tube shaft, and an axial guide groove (52) is provided on one side of the tube shaft. The tube shaft is provided with a lead screw (51) arranged axially inside; the cantilever beam (6) is provided with a connecting arm (61) at one end facing the rotating shaft (5). The connecting arm (61) passes through the axial guide groove (52) and extends into the tube shaft. The end of the connecting arm (61) extending into the tube shaft is provided with a threaded sleeve (62) that is threaded with the lead screw (51); the lead screw (51) is connected to a second motor (53) provided inside the tube shaft.

9. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 1 or 8, characterized in that: The wind-powered dust removal mechanism (8) includes an air outlet nozzle (81) installed on the cantilever beam (6). The air outlet of the air outlet nozzle (81) faces the dust sensor (7). The air outlet nozzle (81) is connected to the air pump (82) installed on the cantilever beam (6) through a pipe.

10. The fault detection equipment for the aluminum electrolysis flue gas purification device according to claim 9, characterized in that: The cantilever beam (6) is symmetrically provided with a front arc-shaped seat (83) and a rear arc-shaped seat (84). The front arc-shaped seat (83) and the rear arc-shaped seat (84) are respectively set on the front and rear sides of the dust sensor (7). The exhaust nozzle (81) is evenly embedded in the front arc-shaped seat (83) and the rear arc-shaped seat (84).

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