CN111841318A - Device and method for installing catalyst module in SCR (Selective catalytic reduction) denitration reactor - Google Patents
Device and method for installing catalyst module in SCR (Selective catalytic reduction) denitration reactor Download PDFInfo
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- CN111841318A CN111841318A CN202010509509.4A CN202010509509A CN111841318A CN 111841318 A CN111841318 A CN 111841318A CN 202010509509 A CN202010509509 A CN 202010509509A CN 111841318 A CN111841318 A CN 111841318A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 94
- 238000003825 pressing Methods 0.000 claims description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0233—Other waste gases from cement factories
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Abstract
The invention relates to a device and a method for installing a catalyst module in an SCR (selective catalytic reduction) denitration reactor, belonging to the technical field of catalyst module installation, wherein the catalyst module installation device comprises a sliding rail and an installation trolley, the installation trolley is connected on the sliding rail in a sliding way and is positioned above an installation position of the catalyst module, the installation trolley comprises a lifting platform, wheels and a driving part, the catalyst module to be installed is placed on the lifting platform, the wheels are arranged on two sides of the lifting platform, and the wheels are connected on the sliding rail in a sliding way through the driving part. The potential safety hazard in the operation process is reduced.
Description
Technical Field
The invention relates to the technical field of installation of catalyst modules in an SCR (selective catalytic reduction) denitration reactor, in particular to an installation device and method of the catalyst modules in the SCR denitration reactor.
Background
The tightening of the NOx emission index in cement production is a big trend of the future industry development. The SCR denitration technology meeting the 'ultralow emission' denitration requirement of the cement kiln flue gas is remarkable in advantages and is a technical direction for cement kiln flue gas denitration. The weight of a single catalyst module in the SCR denitration reactor is about 1.2t, the single catalyst module is limited by the inner space of the reactor, the operation of installing and replacing the catalyst module mostly adopts a chain block operation, and some catalyst modules are installed in a mode of pushing a catalyst trolley by hand, so that the degree of automation is low, the operation efficiency is low, the labor intensity of installation workers is high, and the safety is poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device for installing a catalyst module in an SCR denitration reactor, wherein a sliding rail is arranged above a catalyst module installation position in the SCR denitration reactor, an installation trolley for bearing the catalyst module to be installed is connected to the sliding rail in a sliding mode, the installation trolley can finish forward and backward movement through a driving part, and a lifting platform arranged on the installation trolley can lift the catalyst module to finish automatic installation and disassembly, so that the automation level of installation and disassembly of the catalyst module is improved, the installation efficiency is high, the labor intensity of workers is reduced, and the potential safety hazard in operation is reduced.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the device for installing the catalyst module in the SCR denitration reactor comprises a sliding rail and an installation trolley, wherein the sliding rail is detachably installed in the SCR denitration reactor, the installation trolley is connected to the sliding rail in a sliding mode and located above an installation position of the catalyst module, the installation trolley comprises a lifting platform, wheels and a driving part, the catalyst module to be installed is placed on the lifting platform, the wheels are arranged on two sides of the lifting platform, and the wheels are connected to the sliding rail in a sliding mode through the driving part.
Further, the lifting platform comprises an installation frame, a lifting arm and a bearing support plate, wherein two sides of the middle part of the installation frame are connected with the bearing support plate through the lifting arm, a catalyst module to be installed is placed on the bearing support plate, and the wheels are respectively installed on two sides of the end part of the installation frame.
Furthermore, the lifting arm comprises a hydraulic cylinder and cross arms, the hydraulic cylinder is connected with a hydraulic pipeline for installing the reversing electromagnetic valve, two sides of the installation frame are hinged to the cross arms respectively, the two groups of cross arms are connected through a connecting shaft, and the end part of the installation frame is connected with the connecting shaft through the hydraulic cylinder.
Further, the installation position of the catalyst module is located above the installation frame, and the reversing solenoid valve is set to be a three-position four-way reversing solenoid valve.
Further, the wheel includes action wheel and follow driving wheel, the action wheel sets up the relative both sides of installation frame one end, just the drive part that links to each other is installed to the top of action wheel, follow driving wheel setting and be in the relative both sides of installation frame other end.
Further, the inboard of wheel is provided with the rim, the rim with the inboard joint cooperation of slip track.
Further, the driving part comprises a speed reducing motor, an electromagnetic brake, a universal coupling and a gear transmission mechanism, the speed reducing motor comprises an output shaft I and an output shaft II, the output shaft I and the output shaft II are respectively connected with the electromagnetic brake, the output shaft I is connected with one driving wheel through the universal coupling and the gear transmission mechanism in sequence, and the output shaft II is connected with the other driving wheel through the gear transmission mechanism.
Furthermore, the device also comprises a remote controller and a control box arranged on the mounting trolley, wherein a function control key, a main control chip and a wireless transmitting module are arranged in the remote controller, a wireless receiving module and a PLC control unit connected with the wireless receiving module are arranged in the control box, and the signal output end of the PLC control unit is electrically connected with the speed reducing motor, the electromagnetic brake and the reversing electromagnetic valve; the function control key is electrically connected with the wireless transmitting module through the main control chip and transmits a control signal to the wireless receiving module, and the wireless receiving module controls the PLC control unit to output a control instruction to control the forward and reverse rotation of the speed reducing motor, the action of the electromagnetic brake and the reversing action of the reversing electromagnetic valve.
Furthermore, the function control keys in the remote controller comprise a control button I for controlling the speed reducing motor to rotate forwards, a control button II for controlling the speed reducing motor to rotate backwards, a control button III for controlling the electromagnetic brake to act, a control button IV for controlling the reversing electromagnetic valve to enable the piston rod of the hydraulic cylinder to extend and retract for a certain distance and maintain pressure, and a control button V.
A method for installing a catalyst module in an SCR denitration reactor, which applies the device for installing the catalyst module in the SCR denitration reactor, comprises the following steps:
1) installing the sliding rail above a supporting steel beam of an upper catalyst module of the reactor, hoisting the installation trolley to the end part of the sliding rail, then hoisting the catalyst module to be installed to a lifting platform of the installation trolley, and pressing a control button IV to enable the lifting platform to drive the catalyst module to ascend so that the catalyst module to be installed is located a distance above the supporting steel beam;
2) pressing a control button I to enable a speed reduction motor to drive a mounting trolley to run on a sliding guide rail, when the mounting trolley reaches a mounting position of a catalyst module, pressing a control button III to brake the mounting trolley, pressing a control button V to enable a lifting platform to drive the catalyst module to descend until the catalyst module is placed at the mounting position, and enabling the lifting platform to drive the catalyst module to continuously descend for a certain distance to enable the mounted catalyst module to be separated from the lifting platform;
3) Pressing a control button III to stop braking the installation trolley, and pressing a control button I to enable the installation trolley to continue to run along the sliding guide rail until the rear end of the installation trolley is far away from the installed catalyst module;
4) pressing a control button III to brake the installation trolley, then pressing a control button IV to enable the unloaded lifting platform to ascend to a distance above the supporting steel beam, pressing a control button III to stop braking the installation trolley, then pressing a control button II to enable the installation trolley to move reversely to the end part of the sliding track, and then installing the residual catalyst modules on the upper layer in the reactor according to the methods of the steps 1) -4);
5) and (3) disassembling the sliding rail, installing the sliding rail above a lower catalyst module supporting steel beam of the reactor, and installing the catalyst modules of the rest layers in the reactor according to the methods of the steps 1) to 4).
The invention has the beneficial effects that:
1. according to the invention, the sliding rail is arranged above the catalyst module mounting position in the SCR denitration reactor, the sliding rail is connected with the mounting trolley for bearing the catalyst module to be mounted in a sliding manner, the mounting trolley can complete the forward and backward movement action through the driving part, and the lifting platform arranged on the mounting trolley can lift the catalyst module to complete automatic mounting and can also complete the dismounting and transportation of the failed catalyst module, so that the automation level of the mounting and dismounting of the catalyst module is improved, the mounting efficiency is high, the labor intensity of workers is reduced, and the potential safety hazard in operation is reduced.
2. Wherein the advance of installation dolly, retreat, the lift and the position of parking and lift platform keep, the function control button that all can operate the remote controller comes the control box of control installation on the dolly to realize, make the whole installation of catalyst module observe the running state of installation dolly by the installer at safe position, realize the installation and the dismantlement operation of long-range remote control completion catalyst module through the remote controller, it is more convenient to operate, the operating efficiency is higher, the automation level of catalyst module installation and dismantlement has further been improved, the potential safety hazard in installation and the dismantlement process has been reduced.
In summary, the invention enables the mounting trolley to move in the direction of the catalyst module mounting position in a wireless remote control mode, so that the catalyst module is lifted, the mounting and dismounting operation of the catalyst module is realized, the operation is more convenient, the operation efficiency is higher, the automation level of the mounting and dismounting of the catalyst module is further improved, the labor intensity of mounting workers is reduced, and the potential safety hazard in the mounting and dismounting process is reduced.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic view showing the construction of a catalyst module mounting apparatus according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the driving member of FIG. 1;
FIG. 4 is an electrical schematic diagram of a catalyst module installation apparatus of the present invention;
the labels in the above figures are: 1. the system comprises a sliding rail, 2, a mounting trolley, 21, a lifting platform, 211, a mounting frame, 212, a lifting arm, 213, a bearing support plate, 22, a driving wheel, 23, a driven wheel, 24, a wheel rim, 25, a driving part, 251, a speed reducing motor, 252, an electromagnetic brake, 253, a universal coupling, 254, a gear transmission mechanism, 3, a catalyst module, 4, a control box and 5, a supporting steel beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The specific implementation scheme of the invention is as follows: the SCR denitration reactor that relates to in this scheme is provided with multilayer catalyst module installation position in, fixed a set of support girder steel 5 on the catalyst module installation position, bears a plurality of catalyst modules of installation on a set of support girder steel 5, is the installation position of catalyst module promptly. As shown in fig. 1 and 2, an installation apparatus for a catalyst module in an SCR denitration reactor comprises a sliding rail 1 and an installation trolley 2, wherein the sliding rail 1 is detachably installed above a group of supporting steel beams 5 in the SCR denitration reactor, the installation trolley 2 is slidably connected to the sliding rail 1 and located above an installation position of the catalyst module 3, the installation trolley 2 comprises a lifting platform 21, wheels and a driving part 25, the catalyst module 3 to be installed is placed on the lifting platform 21, the lifting platform can be lifted to realize transportation and positioning before the installation of the catalyst module 3, the lifting platform 21 drives the catalyst module 3 to descend and place the catalyst module 3 on the supporting steel beams 5 to complete the installation, the lifting platform 21 is continuously descended after the installation to separate the installed catalyst module 3 from the installed catalyst module 3, so that the catalyst module can be conveniently moved to a lifting position of the catalyst module 3 in a no-load manner, and the installation of the rest catalyst modules, the lifting platform can be used for lifting the catalyst module to complete automatic installation and can also complete the removal and transportation of the failed catalyst module, the automation level of the installation and the removal of the catalyst module is improved, the installation efficiency is high, the labor intensity of workers is reduced, and the potential safety hazard in the operation is reduced.
Specifically, as shown in fig. 1, the lifting platform 21 includes a mounting frame 211, a lifting arm 212 and a supporting plate 213, two sides of a middle portion of the mounting frame 211 are connected to the supporting plate 213 through the lifting arm 212, a catalyst module 3 to be mounted is placed on the supporting plate 213, two sides of an end portion of the mounting frame 211 are respectively provided with wheels, a structure diagram of the lifting arm 212 is not shown, the structure of the lifting platform includes a hydraulic cylinder and a cross arm, the hydraulic cylinder is connected to a hydraulic pipeline provided with a reversing solenoid valve, the hydraulic pipeline includes a hydraulic pump and a switch valve, when the lifting arm 212 is lifted, the hydraulic pump and the switch valve need to be started, the hydraulic pump and the switch valve can be started manually or electrically, the reversing solenoid valve is set as a three-position four-way reversing solenoid valve, the position function is pressure maintaining, pressure maintaining locking on a corresponding structure after reversing is completed, the length of the piston rod of the hydraulic cylinder is fixed after pressure maintaining, and the position of the bearing supporting plate 213 is fixed; the two sides of the mounting frame 211 are respectively hinged with the cross arms, the two groups of cross arms are connected through a connecting shaft, the end part of the mounting frame 211 is connected with the connecting shaft through a hydraulic cylinder, and the extension and retraction of a piston rod of the hydraulic cylinder can extend or compress the cross arms, so that the bearing supporting plate 213 can ascend and descend relative to the mounting frame 211. Specifically, the mounting position of the catalyst module 3 is located above the mounting frame 211, and when the two sets of cross arms are compressed to be in the same plane as the mounting frame 211, the support pallet 213 is located below the mounting position of the catalyst module 3, so that after the catalyst module 3 is mounted, the support pallet 213 can be separated from the mounted catalyst module 3 and can move to the lifting position of a new catalyst module 3 in a no-load manner.
Specifically, as shown in fig. 1 and fig. 2, the wheels include a driving wheel 22 and a driven wheel 23, the driving wheel 22 is disposed on two opposite sides of one end of the mounting frame 211, a driving part 25 connected to the driving wheel 22 is mounted above the driving wheel 22, the driven wheel 23 is disposed on two opposite sides of the other end of the mounting frame 211, the driving wheel 22 is driven by the driving part 25 to rotate, so that the driven wheel 23 is driven to rotate along with the driving wheel 22, and movement of the mounting cart on the sliding track 1 is achieved; in addition, the inner sides of the driving wheel 22 and the driven wheel 23 are provided with a flange 24, and the flange 24 is in clamping fit with the inner side of the sliding track 1 to play a role of sliding guide.
Specifically, as shown in fig. 2 and fig. 3, the driving component 25 includes a speed reducing motor 251, an electromagnetic brake 252, a universal joint 253 and a gear transmission mechanism 254, the speed reducing motor 251 is formed by connecting a motor and a speed reducer, the speed reducing motor 251 can use a worm gear speed reducing motor with model number 5840-31ZYS, the speed reducing motor is provided with two output shafts including an output shaft i and an output shaft ii, the output shaft i and the output shaft ii are respectively connected with the electromagnetic brake 252, and the electromagnetic brake 252 is used for stopping the rotation of the two output shafts of the speed reducing motor 251 to realize the braking of the mounting trolley 2; because gear motor 251 among them installs in the top of wheel, for making the removal of wheel more smooth and easy, output shaft I loops through universal joint 253, gear drive 254 and links to each other with a action wheel 22, and the setting of universal joint 253 has guaranteed that the wheel can not be because of the dead circumstances of structure restriction card when rotating, and output shaft II passes through gear drive 254 and links to each other with another action wheel 22.
Specifically, as shown in fig. 4, the device further comprises a remote controller and a control box 4 arranged on the mounting trolley 2, wherein the remote controller is internally provided with a function control key, a main control chip and a wireless transmitting module, the control box 4 is internally provided with a wireless receiving module and a PLC control unit connected with the wireless receiving module, and a signal output end of the PLC control unit is electrically connected with the speed reducing motor 251, the electromagnetic brake 252 and the reversing electromagnetic valve; the function control key is electrically connected with the wireless transmitting module through the main control chip and transmits a control signal to the wireless receiving module, and the wireless receiving module controls the PLC control unit to output a control instruction to control the forward and reverse rotation of the speed reducing motor 251, the action of the electromagnetic brake 252 and the reversing action of the reversing electromagnetic valve. The function control keys in the remote controller comprise a control button I for controlling the speed reducing motor 251 to rotate forwards, a control button II for controlling the speed reducing motor 251 to rotate backwards, a control button III for controlling the electromagnetic brake 252 to act, a control button IV for controlling the reversing electromagnetic valve to enable the piston rod of the hydraulic cylinder to extend and retract for a certain distance and maintain pressure and a control button V. Certainly, in order to further improve the automation level of control, the signal output end of the PLC control unit is electrically connected with a hydraulic pump and a switch valve in a hydraulic pipeline, and the function control keys in the remote controller further comprise control buttons for controlling the opening and closing of the hydraulic pump and the switch valve.
The method for installing the catalyst module in the SCR denitration reactor by using the installation device comprises the following steps:
1) installing a sliding rail 1 above a supporting steel beam 5 of an upper catalyst module 3 of the reactor, hoisting a mounting trolley 2 to a hoisting position at the end part of the sliding rail 1, then hoisting a catalyst module 3 to be mounted to a lifting platform 21 of the mounting trolley 2, and pressing a control button IV to enable the lifting platform 21 to drive the catalyst module 3 to ascend so that the catalyst module 3 to be mounted is located a distance above the supporting steel beam;
2) pressing a control button I to enable a speed reducing motor 251 to drive a mounting trolley 2 to run on a sliding guide rail, when the mounting trolley reaches a mounting position of a catalyst module 3, pressing a control button III to brake the mounting trolley 2, pressing a control button V to enable a lifting platform 21 to drive the catalyst module 3 to descend until the catalyst module 3 is placed at the mounting position, and enabling the lifting platform 21 to drive the catalyst module 3 to continuously descend for a certain distance to enable the mounted catalyst module 3 to be separated from the lifting platform 21;
3) pressing the control button III to stop braking the installation trolley 2, and pressing the control button I to enable the installation trolley 2 to continue to run along the sliding guide rail until the rear end of the installation trolley 2 is far away from the installed catalyst module 3;
4) Pressing a control button III to brake the installation trolley 2, then pressing a control button IV to lift the unloaded lifting platform 21 to a distance above the supporting steel beam 5, pressing the control button III to stop braking the installation trolley 2, then pressing a control button II to reversely move the installation trolley 2 to a lifting position at the end part of the sliding rail 1, and then installing the residual catalyst modules 3 on the upper layer in the reactor according to the methods of the steps 1) -4);
5) and (3) disassembling the sliding rail 1, installing the sliding rail above a supporting steel beam of a lower catalyst module 3 of the reactor, and installing the catalyst modules 3 of the rest layers in the reactor according to the methods of the steps 1) to 4).
According to the same principle, when the failed catalyst module 3 needs to be dismantled and transported, firstly, a sliding rail 1 is installed above a supporting steel beam of the corresponding failed catalyst module 3 in the reactor, an installation trolley 2 is hoisted to a hoisting position at the end part of the sliding rail 1, and then a control button V is pressed down to enable a lifting platform 21 to drive the catalyst module 3 to descend to a distance below the catalyst module 3; then, pressing a control button I to enable a speed reduction motor 251 to drive the installation trolley 2 to move to the position of the invalid catalyst module 3 on the sliding guide rail, pressing a control button III to enable the installation trolley 2 to brake, pressing a control button IV to enable the no-load lifting platform 21 to ascend and enable the invalid catalyst module 3 to be lifted upwards and to be separated from the supporting steel beam by a certain distance; and finally, pressing the control button III to stop braking the mounting trolley 2, pressing the control button II to reversely move the mounting trolley 2 to a lifting position at the end part of the sliding rail 1, and removing the failed catalyst module 3 by using a lifting tool.
In summary, the invention enables the mounting trolley to move in the direction of the catalyst module mounting position in a wireless remote control mode, so that the catalyst module is lifted, the mounting and dismounting operation of the catalyst module is realized, the operation is more convenient, the operation efficiency is higher, the automation level of the mounting and dismounting of the catalyst module is further improved, the labor intensity of mounting workers is reduced, and the potential safety hazard in the mounting and dismounting process is reduced.
While the foregoing is directed to the principles of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. The utility model provides a catalyst module installation device in SCR denitration reactor, its characterized in that, includes slip track (1) and installation dolly (2), slip track (1) demountable installation is in SCR denitration reactor, installation dolly (2) sliding connection be in on slip track (1) and be located the top of the installation position of catalyst module (3), installation dolly (2) are including lift platform (21), wheel and driver part (25), place catalyst module (3) of treating the installation on lift platform (21), the both sides of lift platform (21) are provided with the wheel, the wheel passes through driver part (25) sliding connection be in on slip track (1).
2. The apparatus of claim 1, wherein: the lifting platform (21) comprises a mounting frame (211), a lifting arm (212) and a bearing support plate (213), wherein the two sides of the middle part of the mounting frame (211) are connected with the bearing support plate (213) through the lifting arm (212), a catalyst module (3) to be mounted is placed on the bearing support plate (213), and the wheels are respectively mounted on the two sides of the end part of the mounting frame (211).
3. The apparatus of claim 2, wherein: the lifting arm (212) comprises a hydraulic cylinder and cross arms, the hydraulic cylinder is connected with a hydraulic pipeline for installing the reversing electromagnetic valve, two sides of the installation frame (211) are hinged to the cross arms respectively, the two groups of cross arms are connected through a connecting shaft, and the end part of the installation frame (211) is connected with the connecting shaft through the hydraulic cylinder.
4. The apparatus of claim 3, wherein: the installation position of the catalyst module (3) is located above the installation frame (211), and the reversing solenoid valve is set to be a three-position four-way reversing solenoid valve.
5. The apparatus of claim 3 or 4, wherein: the wheel includes action wheel (22) and follows driving wheel (23), action wheel (22) set up installation frame (211) one end relative both sides, just drive part (25) that link to each other is installed to the top of action wheel (22), follow driving wheel (23) set up installation frame (211) other end relative both sides.
6. The apparatus of claim 5, wherein: the inboard of wheel is provided with rim (24), rim (24) with the inboard joint cooperation of slip track (1).
7. The apparatus of claim 5, wherein: the driving part (25) comprises a speed reducing motor (251), an electromagnetic brake (252), a universal coupling (253) and a gear transmission mechanism (254), the speed reducing motor (251) comprises an output shaft I and an output shaft II, the output shaft I and the output shaft II are respectively connected with the electromagnetic brake (252), the output shaft I is connected with one driving wheel (22) sequentially through the universal coupling (253) and the gear transmission mechanism (254), and the output shaft II is connected with the other driving wheel (22) through the gear transmission mechanism (254).
8. The apparatus of claim 7, wherein: the device also comprises a remote controller and a control box (4) arranged on the mounting trolley (2), wherein a function control key, a main control chip and a wireless transmitting module are arranged in the remote controller, a wireless receiving module and a PLC control unit connected with the wireless receiving module are arranged in the control box (4), and the signal output end of the PLC control unit is electrically connected with the speed reducing motor (251), the electromagnetic brake (252) and the reversing electromagnetic valve; the function control key is electrically connected with the wireless transmitting module through the main control chip and transmits a control signal to the wireless receiving module, and the wireless receiving module controls the PLC control unit to output a control instruction to control the forward and reverse rotation of the speed reducing motor (251), the action of the electromagnetic brake (252) and the reversing action of the reversing electromagnetic valve.
9. The apparatus of claim 8, wherein: the function control keys in the remote controller comprise a control button I for controlling the speed reducing motor (251) to rotate forwards, a control button II for controlling the speed reducing motor (251) to rotate backwards, a control button III for controlling the electromagnetic brake (252) to act, a control button IV and a control button V for controlling the reversing electromagnetic valve to enable a piston rod of the hydraulic cylinder to extend out and retract for a certain distance and then maintain pressure.
10. An installation method of a catalyst module in an SCR denitration reactor, which applies the installation device of the catalyst module in the SCR denitration reactor according to any one of claims 1 to 9, and is characterized in that: the method comprises the following steps:
1) the method comprises the steps that the sliding rail (1) is installed above a supporting steel beam (5) of a catalyst module (3) on the upper layer of a reactor, an installation trolley (2) is lifted to the end part of the sliding rail (1), then the catalyst module (3) to be installed is lifted to a lifting platform (21) of the installation trolley (2), and a control button IV is pressed down to enable the lifting platform (21) to drive the catalyst module (3) to ascend, so that the catalyst module (3) to be installed is located above the supporting steel beam (5) for a certain distance;
2) pressing a control button I to enable a speed reducing motor (251) to drive a mounting trolley (2) to run on a sliding guide rail, pressing a control button III to brake the mounting trolley (2) when the mounting trolley reaches a mounting position of a catalyst module (3), pressing a control button V to enable a lifting platform (21) to drive the catalyst module (3) to descend until the catalyst module (3) is placed at the mounting position, and enabling the lifting platform (21) to drive the catalyst module (3) to continuously descend for a certain distance to enable the mounted catalyst module (3) to be separated from the lifting platform (21);
3) pressing a control button III to stop braking the installation trolley (2), and pressing a control button I to enable the installation trolley (2) to continue to run along the sliding guide rail until the rear end of the installation trolley (2) is far away from the installed catalyst module (3);
4) Pressing a control button III to brake the installation trolley (2), then pressing a control button IV to enable an unloaded lifting platform (21) to ascend to a position above a supporting steel beam (5) for a certain distance, pressing a control button III to stop braking the installation trolley (2), then pressing a control button II to enable the installation trolley (2) to move reversely to the end part of the sliding track (1), and then installing the residual catalyst modules (3) on the upper layer in the reactor according to the methods of the steps 1) to 4);
5) and (3) disassembling the sliding rail (1) and installing the sliding rail above a supporting steel beam (5) of the lower catalyst module (3) of the reactor, and installing the catalyst modules (3) in the rest layers in the reactor according to the methods from the step 1) to the step 4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509509.4A CN111841318A (en) | 2020-06-05 | 2020-06-05 | Device and method for installing catalyst module in SCR (Selective catalytic reduction) denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN114713027A (en) * | 2022-03-16 | 2022-07-08 | 中国华电科工集团有限公司 | System and method for installing catalyst module in SCR (Selective catalytic reduction) denitration reactor |
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