Positioning and adjusting device for drainage nozzle in pulse bag type dust collector

Abstract

The invention discloses a positioning and adjusting device for a drainage nozzle in a pulse bag type dust collector, and relates to the technical field of dust removal equipment, the positioning and adjusting device comprises at least two three-dimensional adjusting mechanisms, a detection assembly and a control unit; the three-dimensional adjusting mechanism is fixed to the box frame and detachably connected with the blowing pipe, and three-dimensional posture adjustment of the blowing pipe is achieved. The detection assembly comprises detection units in one-to-one correspondence with the drainage nozzles, each detection unit comprises at least three transmitting and receiving assemblies (comprising laser transmitters and receivers) uniformly distributed in the circumferential direction of the nozzles and an annular marking piece concentric with a pattern plate opening, and the detection units are used for capturing concentricity and perpendicularity deviation; and the control unit receives the detection signal, calculates deviation and drives the three-dimensional adjusting mechanism to adjust the posture of the blowing pipe until the deviation meets the design requirement. According to the device, the relative position of the drainage nozzle and the tubesheet opening can be accurately controlled, so that the pulse bag type dust collector is ensured to maintain high dust cleaning efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust removal equipment, in particular to a positioning and adjusting device for a flow guide nozzle in a pulse bag filter. BACKGROUND

[0002] The core working principle of a pulse bag filter is to filter and retain dust in flue gas through filter bags. As the filtering process continues, a dust layer will gradually adhere to the surface of the filter bags. If not removed in time, it will lead to increased filtering resistance, reduced dust removal efficiency, and even affect the normal operation and energy consumption level of the equipment. The dust removal system of a pulse bag filter mainly relies on a blowing mechanism composed of a blowing pipe and a flow guide nozzle. Its working process is to transport compressed air to the flow guide nozzle through the blowing pipe, and then spray air flow to the filter bag through the flow guide nozzle to achieve the purpose of removing dust on the surface of the filter bag.

[0003] In a pulse bag filter, a large number of filter bag installation holes (i.e. "flower plate openings") are opened on the flower plate at a designed interval. Each flower plate opening corresponds to the installation of a filter bag, which is tightly fixed at the flower plate opening by a clamp, a ring, or other connecting components to prevent the filter bag from shifting or falling off. The flower plate is usually installed with a blowing pipe and a flow guide nozzle above it. The position accuracy of the flower plate opening directly determines the centering effect of the flow guide nozzle and the filter bag. Only when the flower plate opening and the nozzle are accurately aligned, can the compressed air for dust removal be efficiently sprayed into the filter bag to achieve effective dust removal. In addition, the corresponding relative position relationship between the flower plate opening and the flow guide nozzle needs to be maintained to ensure ideal dust removal efficiency.

[0004] However, in actual application, on the one hand, during the on-site assembly of the flower plate, due to factors such as assembly process, construction environment, and skill level of the operator, assembly errors are inevitable, leading to deviations between the actual positions of the filter bag installation holes (i.e. flower plate openings) on the flower plate and the designed positions. On the other hand, the existing positioning device lacks accuracy, and when the prefabricated blowing pipe is assembled with the on-site assembled flower plate, it cannot accurately adjust the relative position of the flow guide nozzle and the flower plate opening, further exacerbating the centering deviation problem. What's worse, when the dust remover is large in size and the number of flow guide nozzles exceeds ten thousand, the slight centering deviation of a single nozzle will be amplified due to the cumulative effect of the number, resulting in a large number of flow guide nozzles that cannot accurately spray dust removal air flow to the filter bag. Some filter bags cannot be effectively cleaned and the resistance continues to rise, while some filter bags are damaged due to excessive cleaning. Ultimately, the dust removal efficiency of the entire dust removal system is greatly reduced, severely affecting the dust removal performance and operating life of the dust remover.

[0005] In addition, the running pulse bag-type dust collector faces extremely complex working conditions: on the one hand, the temperature of flue gas fluctuates greatly, and the thermal expansion and cold shrinkage deformation of metal components such as the flower plate and the blowing pipe will occur in the high-temperature environment; on the other hand, a large amount of dust contained in the flue gas will accumulate inside the equipment, causing wear and erosion to the blowing mechanism; in addition, the relative position of the blowing pipe and the flower plate will deviate due to vibration during equipment operation. Under the long-term effect of the above factors, even if the new equipment achieves accurate centering of the flow guide nozzle and the flower plate opening during initial installation, the centering accuracy will gradually decrease with the extension of the running time. The traditional static positioning method (such as measurement adjustment based on fixed reference) cannot adapt to the dynamic deformation and working condition fluctuations during equipment operation, cannot monitor and correct the accuracy decay problem in real time, causes the centering deviation of the dust removal system to continuously expand, and the dust removal efficiency to continuously decrease, eventually forcing the enterprise to stop and overhaul or replace the equipment, causing huge economic losses and environmental protection pressure. SUMMARY

[0006] The purpose of the present application is to provide a positioning and adjusting device for a flow guide nozzle in a pulse bag-type dust collector to solve the problems existing in the prior art and to achieve accurate control of the relative position of the flow guide nozzle and the flower plate opening to ensure that the pulse bag-type dust collector maintains high dust removal efficiency.

[0007] To achieve the above-mentioned purpose, the present application provides the following solutions: The present application provides a positioning and adjusting device for a flow guide nozzle in a pulse bag-type dust collector, comprising: at least two three-dimensional adjusting mechanisms, each of which is fixedly connected with the box frame of the pulse bag-type dust collector; the blowing pipe where the flow guide nozzle is located is detachably connected with the output end of each three-dimensional adjusting mechanism; a detection assembly, the detection assembly comprising a detection unit corresponding to each flow guide nozzle, each detection unit comprising a laser mechanism and an annular marker, the flow guide nozzle corresponding to the detection unit being a target nozzle, the flower plate opening corresponding to the target nozzle being a target flower plate opening, the laser mechanism comprising at least three emission-reception assemblies uniformly distributed along the circumference of the target nozzle, each emission-reception assembly comprising a laser emitter and a laser receiver, the annular marker being fixedly arranged at the outer peripheral edge of the target flower plate opening and being concentric with the target flower plate opening, the annular marker being used for reflecting the laser emitted by the laser emitter; a control unit, each emission-reception assembly being signal-connected with the control unit, the control unit being used for calculating the concentricity deviation and the perpendicularity deviation of the target nozzle and the target flower plate opening according to the signals fed back by the emission-reception assemblies, controlling the three-dimensional adjusting mechanisms to adjust the attitude of the blowing pipe until the concentricity deviation and the perpendicularity deviation meet the design requirements.

[0008] Preferably, each of the three-dimensional adjustment mechanisms comprises a horizontal longitudinal adjustment mechanism, a vertical height adjustment mechanism and two horizontal transverse adjustment mechanisms; Each of the horizontal transverse adjustment mechanisms comprises a horizontal transverse guide rail fixedly connected with a box frame of the pulse bag-type dust collector, a first sliding block in sliding fit with the horizontal transverse guide rail, and a first driving device for driving the first sliding block to slide along the horizontal transverse guide rail; The horizontal longitudinal adjustment mechanism comprises a horizontal longitudinal guide rail, a second sliding block in sliding fit with the horizontal longitudinal guide rail, and a second driving device for driving the second sliding block to slide along the horizontal longitudinal guide rail, one end of the horizontal longitudinal guide rail being fixedly connected with the first sliding block in one of the horizontal transverse adjustment mechanisms and the other end being fixedly connected with the first sliding block in the other of the horizontal transverse adjustment mechanisms; The vertical height adjustment mechanism adopts a hydraulic cylinder, the extension direction of the hydraulic cylinder being vertical, the cylinder body of the hydraulic cylinder being fixedly connected with the second sliding block, and the free end of the hydraulic rod of the hydraulic cylinder being the output end of the three-dimensional adjustment mechanism.

[0009] Preferably, the three-dimensional adjustment mechanism further comprises a first piezoelectric ceramic component corresponding to the first sliding block, the first piezoelectric ceramic being fixedly connected with the first sliding block, the first piezoelectric ceramic being capable of extending and contracting in the horizontal transverse direction, and the horizontal longitudinal guide rail being fixedly connected with the first sliding block through the first piezoelectric ceramic; the control unit is capable of controlling the first piezoelectric ceramic to extend and contract. Both ends of the horizontal longitudinal guide rail are fixedly provided with a connecting block, one of the connecting blocks being fixedly connected with the output end of one of the first piezoelectric ceramics, and the other of the connecting blocks being fixedly connected with the output end of the other of the first piezoelectric ceramics.

[0010] Preferably, the three-dimensional adjustment mechanism further comprises a second piezoelectric ceramic fixedly connected with the second sliding block, the cylinder body of the hydraulic cylinder being fixedly connected with the second sliding block through the second piezoelectric ceramic, and the cylinder body of the hydraulic cylinder being connected with the output end of the second piezoelectric ceramic, the second piezoelectric ceramic being capable of extending and contracting in the vertical direction; the control unit is capable of controlling the second piezoelectric ceramic to extend and contract.

[0011] Preferably, the second piezoelectric ceramic is fixedly connected with the second sliding block through a third piezoelectric ceramic, the third piezoelectric ceramic being capable of extending and contracting in the horizontal longitudinal direction; the control unit is capable of controlling the third piezoelectric ceramic to extend and contract.

[0012] Preferably, a fourth piezoelectric ceramic and a fifth piezoelectric ceramic are further fixedly connected with the second piezoelectric ceramic respectively, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are horizontally transversely spaced, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are connected with the cylinder body of the hydraulic cylinder through ball hinges respectively, the cylinder body of the hydraulic cylinder is connected with the second piezoelectric ceramic through the ball hinges, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic can be telescoped in the vertical direction, and the control unit can control the telescoping of the fourth piezoelectric ceramic and the fifth piezoelectric ceramic.

[0013] Preferably, the second piezoelectric ceramic is connected with the third piezoelectric ceramic through a translation stage, and the translation stage is longitudinally slidably connected with the second sliding block.

[0014] Preferably, the output end of the three-dimensional adjusting mechanism is provided with a connecting assembly, the connecting assembly comprises a horizontal plate fixedly connected with the output end of the three-dimensional adjusting mechanism and a hoop detachably connected with the horizontal plate through a locking bolt, and the blowing pipe is clamped between the hoop and the horizontal plate.

[0015] Preferably, insulating mounting seats are arranged between the first piezoelectric ceramic and the first sliding block, between the third piezoelectric ceramic and the second sliding block, between the second piezoelectric ceramic and the third piezoelectric ceramic, between the fourth piezoelectric ceramic and the second piezoelectric ceramic, and between the fifth piezoelectric ceramic and the second piezoelectric ceramic respectively.

[0016] Preferably, the control unit adopts a data acquisition controller, and the annular marker is provided with a laser reflection target area for reflecting laser.

[0017] The positioning and adjusting device for the drainage nozzle in the pulse bag-type dust collector of the application has the following technical effects relative to the prior art: The positioning and adjusting device for the drainage nozzle in the pulse bag-type dust collector of the application has the following technical effects relative to the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 Structure diagram of the positioning adjusting device for the flow guide nozzle in the pulse bag-type dust collector according to the present application; Figure 2 Structure diagram of the three-dimensional adjusting mechanism according to the present application; Figure 3 Structure diagram of the positioning adjusting device for the flow guide nozzle in the pulse bag-type dust collector according to the present application; Figure 1 Figure 4 Structure diagram of the laser mechanism according to the present application; Figure 5 Structure diagram of the positioning adjusting device for the flow guide nozzle in the pulse bag-type dust collector according to the present application; Figure 3 Figure 6 Structure diagram of the positioning adjusting device for the flow guide nozzle in the pulse bag-type dust collector according to the present application; Figure 4 Figure 7 Structure diagram of the positioning adjusting device for the flow guide nozzle in the pulse bag-type dust collector according to the present application; Figure 5 In the figure: 1, hoop; 2, three-dimensional adjusting mechanism; 21, horizontal transverse adjusting mechanism; 22, horizontal longitudinal adjusting mechanism; 23, vertical height adjusting mechanism; 24, first sliding block; 25, first piezoelectric ceramic; 26, connecting block; 27, second piezoelectric ceramic; 28, third piezoelectric ceramic; 29, translation stage; 3, transmitting-receiving assembly; 31, laser transmitter; 32, laser receiver; 4, reference marker; 41, laser reflection target area; 51, anti-loosening bolt; 52, elastic buffer pad; 53, nut; 6, blowing pipe; 61, flow guide nozzle; 7, flower plate opening; 8, cross plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0021] ​​​​The purpose of this invention is to provide a positioning and adjustment device for the diversion nozzle in a pulse bag filter, so as to solve the problems existing in the prior art and achieve precise control of the relative position of the diversion nozzle and the tube sheet opening, so as to ensure that the pulse bag filter maintains high-efficiency dust collection.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 7 As shown, this embodiment provides a positioning and adjustment device for the guide nozzle 61 in a pulse bag filter, including two three-dimensional adjustment mechanisms 2, a detection component, and a control unit; the two three-dimensional adjustment mechanisms 2 are spaced apart along the length of the blowpipe 6, and each three-dimensional adjustment mechanism 2 is fixedly connected to the housing frame of the pulse bag filter; the blowpipe 6 where the guide nozzle 61 is located is detachably connected to the output end of each three-dimensional adjustment mechanism 2; the detection component includes detection units corresponding one-to-one with the guide nozzle 61, each detection unit including a laser mechanism and an annular marker, the guide nozzle 61 corresponding to the detection unit is the target nozzle, the tube sheet opening 7 corresponding to the target nozzle is the target tube sheet opening 7, and the laser mechanism... The system includes three transmitting and receiving components 3 evenly distributed around the target nozzle. Each transmitting and receiving component 3 includes a laser emitter 31 and a laser receiver 32. An annular marker is fixedly set on the outer periphery of the target perforated plate 7 and is concentric with the target perforated plate 7. The annular marker is provided with a laser reflection target area 41 for reflecting the laser. Each transmitting and receiving component 3 is connected to a control unit. The control unit is a data acquisition controller used to calculate the concentricity deviation and perpendicularity deviation between the target nozzle and the target perforated plate 7 based on the signals fed back by the transmitting and receiving components 3, and to control the three-dimensional adjustment mechanism 2 to adjust the attitude of the blowpipe 6 until the concentricity deviation and perpendicularity deviation meet the design requirements.

[0024] The detection unit utilizes the triangulation principle to convert spatial deviation into optical signals, with a measurement response time of ≤50ms. It can capture the vibration offset of the dust collector in real time. The 635-650nm wavelength laser beam has good penetration in dusty environments (penetration rate ≥70%). Combined with the high reflectivity coating (reflectivity ≥95%) of the laser reflection target area 41, it solves the measurement failure problem of photoelectric sensors in dusty environments. The calibration and overlap mechanism between the center of the target area and the geometric center of the tube sheet 7 reduces the manual positioning error from ±1.5mm to within ±0.1mm. The surrounding verticality laser receiver 32 array can capture the tilt deviation of the nozzle from all directions, improving the angular resolution by 12 times compared with the single-point measurement method, ensuring that there are no blind spots in the verticality deviation measurement.

[0025] Each three-dimensional adjustment mechanism 2 comprises a horizontal longitudinal adjustment mechanism 22, a vertical height adjustment mechanism 23 and two horizontal transverse adjustment mechanisms 21; each horizontal transverse adjustment mechanism 21 comprises a horizontal transverse guide rail fixedly connected with the box frame of the pulse bag dust collector, a first sliding block 24 in sliding cooperation with the horizontal transverse guide rail and a first driving device for driving the first sliding block 24 to slide along the horizontal transverse guide rail; the horizontal longitudinal adjustment mechanism 22 comprises a horizontal longitudinal guide rail, a second sliding block in sliding cooperation with the horizontal longitudinal guide rail and a second driving device for driving the second sliding block to slide along the horizontal longitudinal guide rail, one end of the horizontal longitudinal guide rail is connected with the first sliding block 24 in one horizontal transverse adjustment mechanism 21 and the other end is connected with the first sliding block 24 in the other horizontal transverse adjustment mechanism 21; the vertical height adjustment mechanism 23 adopts a hydraulic cylinder, the extension direction of the hydraulic cylinder is vertical, the cylinder body of the hydraulic cylinder is connected with the second sliding block and the free end of the hydraulic rod of the hydraulic cylinder is the output end of the three-dimensional adjustment mechanism 2.

[0026] In this embodiment, the first driving device and the second driving device both adopt the form of driving motor combined with belt transmission mechanism, but in actual application, the first driving device and the second driving device can also adopt other forms of driving device, such as servo motor combined with ball screw structure.

[0027] In an alternative of the embodiment, the three-dimensional adjustment mechanism 2 is further provided with a fine adjustment assembly, which specifically comprises a first piezoelectric ceramic 25, a second piezoelectric ceramic 27, a third piezoelectric ceramic 28, a fourth piezoelectric ceramic and a fifth piezoelectric ceramic; wherein the first piezoelectric ceramic 25 is in one-to-one correspondence with the first sliding block 24, and the first piezoelectric ceramic 25 is fixedly connected with the corresponding first sliding block 24; the first piezoelectric ceramic 25 can be stretched and contracted in the horizontal transverse direction, and the horizontal longitudinal guide rail is fixedly connected with the first sliding block 24 through the first piezoelectric ceramic 25; the control unit can control the first piezoelectric ceramic 25 to stretch and contract; the horizontal longitudinal guide rail is provided with a connecting block 26 at each end, one connecting block 26 is fixedly connected with the output end of one first piezoelectric ceramic 25, and the other connecting block 26 is fixedly connected with the output end of the other first piezoelectric ceramic 25. The third piezoelectric ceramic 28 is connected with the second sliding block, the second piezoelectric ceramic 27 is connected with the third piezoelectric ceramic 28, the third piezoelectric ceramic 28 can be stretched and contracted in the horizontal longitudinal direction, and the second piezoelectric ceramic 27 can be stretched and contracted in the vertical direction; the cylinder body of the hydraulic cylinder is connected with the output end of the second piezoelectric ceramic 27; the control unit can control the second piezoelectric ceramic 27 and the third piezoelectric ceramic 28 to stretch and contract. The fourth piezoelectric ceramic and the fifth piezoelectric ceramic are fixedly connected with the second piezoelectric ceramic 27, respectively, and are distributed in the horizontal transverse direction; the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are connected with the cylinder body of the hydraulic cylinder through a spherical hinge, respectively; the cylinder body of the hydraulic cylinder is connected with the second piezoelectric ceramic 27 through the spherical hinge, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic; the fourth piezoelectric ceramic and the fifth piezoelectric ceramic can be stretched and contracted in the vertical direction; and the control unit can control the fourth piezoelectric ceramic and the fifth piezoelectric ceramic to stretch and contract.

[0028] In an alternative of the embodiment, preferably, the second piezoelectric ceramic 27 is connected with the third piezoelectric ceramic 28 through a translation stage 29, and the translation stage 29 is in sliding fit with the second sliding block in the horizontal longitudinal direction.

[0029] In the optional scheme of the embodiment, preferably, the output end of the three-dimensional adjusting mechanism 2 is provided with a connecting assembly, which comprises a cross plate 8 and a hoop 1 fixedly connected with the output end of the three-dimensional adjusting mechanism 2, and flanges are arranged on the cross plate 8 and the hoop 1 respectively, the flange on the hoop 1 is detachably connected with the flange on the cross plate 8 through a lock bolt 51 and a nut 53, and an elastic buffer pad 52 is clamped between the nut 53 and the flange on the cross plate 8, and the blow pipe 6 is clamped between the hoop 1 and the cross plate 8; the combination of the lock bolt 51 and the elastic buffer pad 52 realizes long-term stable maintenance of the positioning state, the stainless steel lock bolt 51 is provided with a triple anti-loosening structure of double nuts 53 + elastic washers, the pre-tightening torque deviation is controlled within ± 5%, the anti-loosening reliability is improved by 3 times compared with the traditional single nut 53 connection, and high-frequency vibration during operation of the dust remover can be effectively resisted (vibration attenuation rate of 10-50 Hz frequency band is greater than or equal to 90%); the elastic buffer pad 52 is embedded with a metal grid, the design of the embedded metal grid in the elastic buffer pad 52 reduces the compression permanent deformation rate of the pure rubber pad from 20% to less than 5%, and when the contact pressure is 0.5-1 MPa, the elastic buffer pad 52 can not only absorb the thermal expansion deformation of the blow pipe 6, but also maintain sufficient rigid support.

[0030] In the optional scheme of the embodiment, preferably, insulating mounting seats are arranged between the first piezoelectric ceramic 25 and the first sliding block 24, between the third piezoelectric ceramic 28 and the second sliding block, between the second piezoelectric ceramic 27 and the third piezoelectric ceramic 28, between the fourth piezoelectric ceramic and the second piezoelectric ceramic 27, and between the fifth piezoelectric ceramic and the second piezoelectric ceramic 27.

[0031] The specific working process of the positioning and adjusting device for the drainage nozzle 61 in the pulse bag-type dust collector is as follows: (1) Artificially install the injection pipe 6 so that the flow guide nozzle 61 on the injection pipe 6 is roughly aligned with the screen plate port 7 on the screen plate, and then fix the injection pipe 6 with the hoop 1 and the horizontal plate 8, start the detection assembly of the control unit, and the laser emitter 31 of the three emission-reception assemblies 3 emits laser to the annular marker, and the reflected laser is received by the laser receiver 32; the control unit calculates the concentricity deviation and the perpendicularity deviation of the target nozzle and the target screen plate port 7 according to the positions of the three receiving points; the control unit, i.e. the data acquisition controller, constructs an intelligent closed-loop control system through the built-in deviation analysis algorithm and multi-stage adjustment strategy, a 10-50 ms interval pulse driving signal synchronous mechanism, so that the time delay of laser measurement data and adjustment action is ≤100 ms, and real-time response under dynamic working conditions is realized; based on the deviation solving of triangulation combined with Kalman filtering algorithm, the random measurement noise is reduced from ±0.2 mm to ±0.05 mm, ensuring data reliability; the multi-stage deviation threshold grading adjustment strategy improves the efficiency of the coarse adjustment stage and the accuracy of the fine adjustment stage, and solves the contradiction between “slow adjustment of large deviation” and “oscillation of small deviation” in the traditional single adjustment mode; the fuzzy logic decision algorithm integrates the deviation, the change rate and the working condition parameters (such as filter bag resistance and injection pressure), so that the accuracy rate of adjustment priority decision is more than 95%, for example, when the perpendicularity deviation is >0.5 mm, the perpendicularity is preferentially processed, which improves the dust removal efficiency by 15-20% compared with the traditional non-differential adjustment.

[0032] (2) Coarse adjustment process: if the deviation is large, the control unit drives the first driving device to drive the first sliding block 24 to slide along the horizontal transverse guide rail to realize horizontal transverse coarse adjustment; drives the second driving device to drive the second sliding block to slide along the horizontal longitudinal guide rail to realize horizontal longitudinal coarse adjustment; controls the hydraulic cylinder to extend and retract to realize vertical height coarse adjustment.

[0033] (3) Fine adjustment process: when the deviation is reduced to a certain range, the control unit starts each piezoelectric ceramic assembly: controls the first piezoelectric ceramic 25 to extend and retract to realize horizontal transverse fine adjustment; controls the third piezoelectric ceramic 28 to extend and retract to realize horizontal longitudinal fine adjustment; controls the second piezoelectric ceramic 27 to extend and retract to realize vertical height fine adjustment; if there is a perpendicularity deviation, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are controlled to extend and retract differently, and the hydraulic cylinder body is slightly tilted through the ball hinge, so as to correct the perpendicularity of the injection pipe 6; when the sampling data of 5 consecutive detection units meet the conditions of concentricity deviation <0.3 mm and perpendicularity deviation <0.2 mm, and the deviation change rate <0.05 mm / s, the countdown judgment mechanism is started; if the deviation does not rebound within 10 seconds, it is judged that the adjustment converges, i.e. the adjustment is in place.

[0034] (4) Dynamic adjustment process: during equipment operation, the detection assembly monitors the deviation change in real time, and the control unit drives each adjustment mechanism to compensate and adjust in real time according to the deviation data to cope with the position deviation caused by factors such as thermal expansion and contraction and vibration.

[0035] (5) Maintenance replacement: when the blowing pipe 6 needs to be replaced, only need to loosen the connection of the hoop 1 and the horizontal plate 8, and the anti-loose bolt 51 can be removed blowing pipe 6, convenient operation.

[0036] The three-dimensional coordinate system formed by the three-dimensional adjustment mechanism 2 in the embodiment changes the "trial and error" adjustment relying on artificial experience in the traditional construction into parameterized accurate control, so that the centering accuracy of each drainage nozzle 61 and the flower plate opening 7 is improved from ±2-5mm in the traditional process to within ±0.5mm, and the vertical accuracy is improved to within ±0.4mm. The cooperation of the laser mechanism and the reference marker 4 builds a non-contact dynamic measurement system, solves the problem of accurate measurement in the high temperature and dust environment in the operation of the dust collector, improves the measurement efficiency by more than 10 times compared with the traditional mechanical gauge, and avoids the secondary damage of mechanical contact to the filter bag. Through the combination of the anti-loose bolt 51 and the elastic buffer pad 52, the vibration energy (amplitude attenuation rate ≥80%) during the operation of the dust collector can be absorbed while locking the position of the blowing pipe 6, so as to prevent the positioning deviation caused by long-term vibration.

[0037] The principles and implementation modes of the present application are described by applying specific examples in the present application. The above examples are only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A positioning adjustment device for a flow directing nozzle in a pulse baghouse, characterized by, The utility model relates to a kind of three-dimensional adjustment mechanism for the pulse bag dust collector, including: At least two three-dimensional adjustment mechanisms, each of the three-dimensional adjustment mechanisms is fixedly connected with the box frame of the pulse bag dust collector;The output end of each three-dimensional adjustment mechanism is detachably connected with the blowing pipe where the flow guide nozzle is located; Detection assembly, the detection assembly includes detection unit corresponding to the flow guide nozzle one by one, each detection unit includes laser mechanism and annular marker, the flow guide nozzle corresponding to the detection unit is target nozzle, the target nozzle corresponding flowerboard mouth is target flowerboard mouth, the laser mechanism includes at least three emission-reception assemblies uniformly distributed along the circumference of the target nozzle, each emission-reception assembly includes laser emitter and laser receiver, the annular marker is fixedly arranged at the outer circumferential edge of the target flowerboard mouth, and the annular marker is concentric with the target flowerboard mouth, and the annular marker is used to reflect the laser emitted by the laser emitter; Control unit, each emission-reception assembly is signal-connected with the control unit, and the control unit is used to calculate the concentricity deviation and perpendicularity deviation of the target nozzle and the target flowerboard mouth according to the signal fed back by the emission-reception assembly, and the attitude of the blowing pipe is adjusted by the three-dimensional adjustment mechanism until the concentricity deviation and the perpendicularity deviation meet the design requirements.

2. The positioning adjustment device for flow guiding nozzle in pulse baghouse according to claim 1, characterized in that: Each three-dimensional adjustment mechanism includes horizontal longitudinal adjustment mechanism, vertical height adjustment mechanism and two horizontal transverse adjustment mechanisms; Each horizontal transverse adjustment mechanism includes horizontal transverse guide rail fixedly connected with the box frame of the pulse bag dust collector, first slider in sliding fit with the horizontal transverse guide rail and first driving device for driving the first slider to slide along the horizontal transverse guide rail; The horizontal longitudinal adjustment mechanism includes horizontal longitudinal guide rail, second slider in sliding fit with the horizontal longitudinal guide rail and second driving device for driving the second slider to slide along the horizontal longitudinal guide rail, one end of the horizontal longitudinal guide rail is fixedly connected with the first slider in one horizontal transverse adjustment mechanism, and the other end is fixedly connected with the first slider in another horizontal transverse adjustment mechanism; The vertical height adjustment mechanism adopts hydraulic cylinder, the extension direction of the hydraulic cylinder is vertical direction, the cylinder body of the hydraulic cylinder is fixedly connected with the second slider, and the free end of the hydraulic rod of the hydraulic cylinder is the output end of the three-dimensional adjustment mechanism.

3. The positioning adjustment device for flow guiding nozzle in pulse baghouse according to claim 2, characterized in that: The three-dimensional adjustment mechanism further includes first piezoelectric ceramic assembly corresponding to the first slider one by one, the first piezoelectric ceramic is fixedly connected with the first slider, the first piezoelectric ceramic can be retracted along horizontal transverse, and the horizontal longitudinal guide rail is fixedly connected with the first slider through the first piezoelectric ceramic;The control unit can control the first piezoelectric ceramic to retract; Two ends of the horizontal longitudinal guide rail are respectively fixedly provided with one connecting block, one connecting block is fixedly connected with the output end of one first piezoelectric ceramic, and the other connecting block is fixedly connected with the output end of another first piezoelectric ceramic.

4. The positioning adjustment device for flow guiding nozzle in pulse bag filter according to claim 3, characterized in that: The three-dimensional adjusting mechanism further comprises a second piezoelectric ceramic fixedly connected with the second sliding block, a cylinder body of the hydraulic cylinder is fixedly connected with the second sliding block through the second piezoelectric ceramic, and the cylinder body of the hydraulic cylinder is connected with an output end of the second piezoelectric ceramic, the second piezoelectric ceramic is capable of stretching and contracting in a vertical direction; and the control unit is capable of controlling the second piezoelectric ceramic to stretch and contract.

5. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 4, characterized in that: The second piezoelectric ceramic is fixedly connected with the second sliding block through a third piezoelectric ceramic, the third piezoelectric ceramic is capable of stretching and contracting in a horizontal longitudinal direction, and the control unit is capable of controlling the third piezoelectric ceramic to stretch and contract.

6. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 5, characterized in that: The three-dimensional adjusting mechanism further comprises a fourth piezoelectric ceramic and a fifth piezoelectric ceramic fixedly connected with the second piezoelectric ceramic respectively, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are spaced apart in a horizontal transverse direction, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are connected with the cylinder body of the hydraulic cylinder through ball hinges respectively, the cylinder body of the hydraulic cylinder is connected with the second piezoelectric ceramic through the ball hinges, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic, the fourth piezoelectric ceramic and the fifth piezoelectric ceramic are capable of stretching and contracting in a vertical direction, and the control unit is capable of controlling the fourth piezoelectric ceramic and the fifth piezoelectric ceramic to stretch and contract.

7. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 5, characterized in that: The second piezoelectric ceramic is connected with the third piezoelectric ceramic through a translation stage, and the translation stage is slidingly fitted with the second sliding block in a horizontal longitudinal direction.

8. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 1, characterized in that: The output end of the three-dimensional adjusting mechanism is provided with a connecting assembly, the connecting assembly comprises a horizontal plate fixedly connected with the output end of the three-dimensional adjusting mechanism and a hoop detachably connected with the horizontal plate through a locking bolt, and the blowing pipe is clamped between the hoop and the horizontal plate.

9. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 6, characterized in that: Insulating mounting seats are arranged between the first piezoelectric ceramic and the first sliding block, between the third piezoelectric ceramic and the second sliding block, between the second piezoelectric ceramic and the third piezoelectric ceramic, between the fourth piezoelectric ceramic and the second piezoelectric ceramic, and between the fifth piezoelectric ceramic and the second piezoelectric ceramic.

10. The positioning adjustment device for flow directing nozzle in pulse baghouse according to claim 1, characterized in that: The control unit adopts a data acquisition controller, and the annular marker is provided with a laser reflection target area for reflecting laser.

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