A sootblowing device suitable for denitration catalyst module

Abstract

The utility model relates to a soot blowing device suitable for a denitration catalyst module, comprising a frame, a feeding mechanism, a conveying mechanism, a soot blowing mechanism and a plurality of control switches, wherein the feeding mechanism comprises brackets arranged at the head end and the tail end, each of the brackets being connected to the frame via a first push rod; the conveying mechanism comprises a plurality of conveyor belts and a first driving motor; the soot blowing mechanism comprises two gantries arranged at the frame, two trusses are arranged between the two gantries, each of the trusses is slidably connected with a cantilever, the cantilever is slidably connected with a first mounting plate, the first mounting plate is used to install an air blowing head, as well as a second driving motor driving each of the cantilever to slide, and a third driving motor driving the first mounting plate to slide. The soot blowing device suitable for a denitration catalyst module has the beneficial effects of high working efficiency and thorough dust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration catalyst activation, in particular to a soot blowing device suitable for a denitration catalyst module. Background Art

[0002] During the use of denitrification catalyst, the pores are blocked due to the adsorption and bridging of large particles of fly ash or deposited fly ash. Due to the blockage of the pores, the reactants in the flue gas cannot further enter the inner surface of the catalyst pores, resulting in a decrease in activity. At the same time, the local flue gas velocity is too fast, and the insufficient residence time causes the pressure drop to increase and the wear to increase, resulting in the physical deactivation of the catalyst. Since the flue gas fly ash contains more compounds of elements such as K, Na, P, and As, they react with the active sites of the catalyst accordingly, thereby reducing the number of active sites participating in the denitrification reaction, causing the catalyst to be chemically deactivated.

[0003] In the activation process of the denitrification catalyst, soot blowing of the denitrification catalyst before water washing, acid washing and alkali washing is a necessary step for the activation of the denitrification catalyst. However, the denitrification catalyst soot blowing method in the prior art is usually carried out by manually holding an air blowing head. On the one hand, the work efficiency is low, and on the other hand, due to manual operation, the dust cleaning is often not thorough. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a soot blowing device suitable for a denitration catalyst module, which has high working efficiency and can remove dust thoroughly.

[0005] The technical solution of the utility model is:

[0006] A sootblowing device suitable for a denitration catalyst module comprises a frame, a feeding mechanism, a conveying mechanism, a sootblowing mechanism and a plurality of control switches, wherein the feeding mechanism comprises brackets arranged at the head end and the tail end, and each of the brackets is connected to the frame via a first push rod;

[0007] The conveying mechanism comprises a plurality of conveyor belts and a first driving motor, wherein the first driving motor is used to provide power for each of the conveyor belts;

[0008] The soot blowing mechanism comprises two gantries arranged at the frame, two trusses are arranged between the two gantries, each truss is slidably connected with a cantilever, and the cantilever is slidably connected with a first mounting plate, and the first mounting plate is used to install the blowing head, and

[0009] A second driving motor for driving each of the cantilevers to slide, and a third driving motor for driving the first mounting plate to slide;

[0010] Each of the control switches is used to control the feeding mechanism, the conveying mechanism, and the soot blowing mechanism to perform actions.

[0011] Preferably, each of the brackets is provided with a plurality of rollers and a fourth driving motor for driving each of the rollers.

[0012] Preferably, a paddle is provided at the frame, and the paddle is used to adjust the angle of the catalyst module at the conveyor belt.

[0013] Preferably, a torsion spring is provided between each of the paddles and the frame.

[0014] Preferably, an adjusting screw is provided between the two trusses, and the screw of the adjusting screw is provided with threads with opposite rotation directions. Nuts adapted to the positive and negative threads of the adjusting screw are respectively provided at the two trusses, and a fifth driving motor driving the screw is fixedly connected to the second mounting plate between the two trusses.

[0015] Preferably, it also includes a sealing cover and a dust removal mechanism, wherein the sealing cover is used to seal the soot blowing mechanism, and the dust removal mechanism is used to dispose of the smoke and dust gathered by the sealing cover.

[0016] Preferably, the sealing cover is provided with a plurality of viewing windows and inspection ports.

[0017] Preferably, the dust removal mechanism is a bag dust collector.

[0018] Preferably, it also includes a control unit and several sensors, each of the sensors is respectively arranged at the feeding mechanism and the soot blowing mechanism to indicate the material position, and the first drive motor, the second drive motor and the third drive motor and each of the sensors are electrically connected to the control unit respectively.

[0019] Preferably, the chip of the control unit is a single chip microcomputer or a PLC programmable controller.

[0020] Compared with the prior art, the soot blowing device suitable for the denitration catalyst module of the utility model delivers the denitration catalyst module to the conveyor belt through the feeding mechanism, and delivers the denitration catalyst module to the soot blowing mechanism through the conveyor belt. Since the soot blowing mechanism completes the removal of dust in the denitration catalyst duct, during use, only manual operation buttons are required, so it has the beneficial effect of high work efficiency.

[0021] In the process of blowing away the dust in the channel, two cantilevers are provided at the soot blowing mechanism, and a blowing head is installed at each cantilever through the first mounting plate. During use, the cantilever is controlled by the second drive motor to move left and right at the gantry, and the third drive motor controls the blowing head to move 10-15 cm at a time. At the same time, the setting of the two blowing heads can achieve the blowing of the entire area of ​​each end face of the catalyst module, thereby having the beneficial effect of thoroughly removing dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an embodiment of a soot blowing device suitable for a denitration catalyst module of the utility model.

[0023] Figure 2 It is a schematic diagram of an embodiment of the present invention in which a bracket and a conveyor belt of a soot blowing device suitable for a denitration catalyst module cooperate.

[0024] Figure 3 It is a schematic diagram of an embodiment of a soot blowing mechanism of a soot blowing device suitable for a denitration catalyst module of the utility model.

[0025] Figure 4 It is a schematic diagram of an embodiment of the utility model in which a baffle and a conveyor belt of a soot blowing device suitable for a denitration catalyst module cooperate.

[0026] Figure 5 It is a schematic diagram of an embodiment of a sealing cover of a sootblowing device suitable for a denitration catalyst module according to the utility model.

[0027] Description of the numbers in the figure:

[0028] 101-frame; 102-gantry; 103-first mounting plate; 104-cantilever; 105-truss; 106-conveyor belt; 107-bracket; 108-first push rod; 109-support beam; 110-roller; 111-screw; 112-second mounting plate; 113-support column; 114-paddle; 115-sealing cover. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] like Figure 1 , 2In the embodiment shown in FIG. 3 , the frame 101 is used to install various functional components, wherein the frame 101 can be welded with profiles such as channel steel, angle steel or square tube.

[0032] The loading mechanism arranged at the frame 101 is used to deliver the catalyst module to be disposed of to the conveying mechanism. Specifically, the loading mechanism is respectively arranged at the head end and the tail end of the conveying mechanism. The loading mechanism includes a bracket 107. The bracket 107 can be welded with high-strength steel plates. A first push rod 108 is arranged at the bottom of the bracket 107 and is respectively connected to the bracket 107 and the frame 101, and is used to lift the bracket 107. A notch is arranged at the bracket 107, and the notch is used for allowing the upper part of the bracket 107 to protrude from the conveyor belt 106 of the conveying mechanism. When the first push rod 108 lifts the bracket 107 and reaches the maximum stroke, the upper part of the bracket 107 is located on the upper part of the conveyor belt 106. When the first push rod 108 is retracted, the upper part of the bracket 107 is lower than the upper part of the conveyor belt 106. When loading materials onto the conveyor belt 106, the first push rod 108 can be extended to deliver the catalyst module to be disposed of to the upper part of the bracket 107 by a forklift or other conveyor belt 106. When the catalyst module to be disposed of is completed, the first push rod 108 is retracted, so that the catalyst module is delivered to the soot blowing mechanism by the conveyor belt 106.

[0033] The conveying mechanism is used to convey the catalyst module. Specifically, the conveying mechanism includes a plurality of conveyor belts 106, each of which is powered by a first driving motor. In order to ensure that the conveyor belt 106 has sufficient power when conveying the catalyst module, the conveyor belt 106 is provided with a plurality of sections. In order to prevent the conveyor belt 106 from being subjected to excessive tension when the catalyst module is placed on the conveyor belt 106, a support beam 109 is provided at the frame 101. In order to reduce the friction between the conveyor belt 106 and the support beam 109, a roller can be provided on the upper surface of the support beam 109.

[0034] The soot blowing mechanism is used to blow out the dust in the catalyst duct. Specifically, the soot blowing mechanism includes two gantry frames 102 arranged at the frame 101, and the two ends of the two trusses 105 are respectively connected to the two gantry frames 102 by rolling connection or sliding connection. Cantilevers 104 are respectively arranged at the two trusses 105, and the upper part of the cantilever 104 is connected to the truss 105 by rolling connection or sliding connection. The first mounting plate 103 slidably connected at each cantilever 104 is used to fix the air blowing head.

[0035] The second drive motors are respectively arranged at the cantilever 104, and a rack or chain is arranged at the upper part or the side of the truss 105, and a gear or sprocket meshing with the power output shaft of the second drive motor is arranged. The cantilever 104 can be moved left and right at the truss 105 by the second drive motor.

[0036] The third drive motor is respectively fixed at each cantilever 104, a driving wheel is arranged at the power output shaft of the third drive motor, and a driven wheel is also arranged at each cantilever 104, a chain or a belt is arranged between the driving wheel and the driven wheel, and the first mounting plate 103 is fixedly connected to the chain or the belt. When the third drive motor rotates, the first mounting plate 103 can be driven by the belt to slide up and down along the cantilever 104.

[0037] Each control switch is used to control the feeding mechanism, the conveying mechanism, and the soot blowing mechanism to perform actions. In specific use, the staff can choose the feeding time according to the number of denitration catalyst modules at the conveyor belt 106. Specifically, first operate the control switch of the feeding mechanism to place the denitration catalyst module to be disposed of at the conveyor belt 106. When the denitration catalyst module reaches the soot blowing mechanism, control the conveying mechanism to stop the action. At the same time, operate the control switch of the soot blowing mechanism to move the mounting plate to the top or bottom of the denitration catalyst. Control the second drive motor to drive the cantilever 104 to slide once on the truss 105 based on the denitration catalyst. After the sliding action of the cantilever 104 is completed, control the third drive motor to drive the mounting plate to move a distance of 10-15 cm at a time to move from top to bottom or from bottom to top, and reciprocate in this way until the high-speed airflow emitted by the blowing head blows through the end face of the denitration catalyst channel. After the sootblowing mechanism completes its action, it continues to start the conveying mechanism. When the denitration catalyst reaches the tail end of the conveying mechanism, the denitration catalyst that has been disposed of is unloaded through the loading mechanism at the tail end.

[0038] Embodiment 2:

[0039] On the basis of Example 1, Figure 2 In the illustrated embodiment, in order to facilitate the delivery of the denitration catalyst modules to be disposed to the bracket 107 and the removal of the disposed denitration catalyst modules, each bracket 107 is provided with a plurality of rollers 110 and a fourth drive motor for driving each roller 110 .

[0040] When in use, the fourth driving motor drives each roller 110 to rotate, and when the denitration catalyst module is placed on the upper part of the bracket 107 , it is convenient for the denitration catalyst module to move on the bracket 107 .

[0041] Embodiment 3:

[0042] On the basis of Example 1 or 2, Figure 4 In the illustrated embodiment, a paddle 114 is provided at the frame 101, wherein two paddles 114 are provided, and each paddle 114 is installed on both sides of the conveyor belt 106 through a support column 113, and faces the moving direction of the conveyor belt 106, and the two paddles 114 are openly provided. When the catalyst module contacts the two paddles 114, the denitration catalyst module moves to the soot blowing mechanism at the same angle under the action of the two paddles 114.

[0043] In this embodiment, in order to prevent the denitration catalyst module from getting stuck when it reaches the two paddles 114 , a torsion spring is provided between the support column 113 of each paddle 114 and the frame 101 .

[0044] Embodiment 4:

[0045] On the basis of any one of embodiments 1-3, Figure 3 In the illustrated embodiment, in order to make the air blowing head at the soot blowing mechanism closer to the end face of the denitration catalyst module, an adjusting screw is arranged between the two trusses 105, and the screw 111 of the adjusting screw is provided with threads with opposite rotation directions, and nuts matching the positive and negative threads at the adjusting screw are respectively arranged at the two trusses 105, and the fifth driving motor driving the screw 111 is fixedly connected to the second mounting plate 112 between the two trusses 105.

[0046] The fifth drive motor is used to drive the screw 111. When the model of the denitration catalyst module is changed, the rotary motion of the fifth drive motor is converted into relative movement between the two trusses 105 by adjusting the screw, so that the air blowing head at the soot blowing mechanism is as close as possible to the end face of the denitration catalyst.

[0047] Embodiment 5:

[0048] On the basis of any one of embodiments 1-4, Figure 5 In the embodiment shown, dust pollutes the working environment during the movement of the denitration catalyst module and the soot blowing process, making the device more environmentally friendly. This embodiment adds a sealing cover 115 and a dust removal mechanism, and also includes a sealing cover 115 and a dust removal mechanism. The sealing cover 115 adopts an integral structure and is pre-welded and installed on the frame 101. When in use, the sealing cover 115 plays a role in gathering smoke and dust, and the gathered smoke and dust are transmitted to the dust removal mechanism for processing.

[0049] In order to facilitate the inspection of the action execution effect of the sootblowing mechanism and the maintenance of the internal components, a plurality of viewing windows and inspection ports may be provided at the sealing cover 115 .

[0050] In view of the many advantages of bag dust collectors, such as mature technology, good treatment effect and low cost, bag dust collectors can be selected as the dust removal mechanism.

[0051] Embodiment 6:

[0052] On the basis of any one of the embodiments 1-5, in order to improve the automation effect and reduce the use of manual labor, a control unit and several sensors are added in this embodiment, and each sensor is used to detect the position of the denitration catalyst module, the position of each cantilever 104 at the truss 105, and the position of each first mounting plate 103. The control unit is provided with several I / O interfaces, and each sensor, the first drive motor, the second drive motor and the third drive motor are electrically connected to the I / O interface of the control unit.

[0053] In specific use, when the sensor for detecting the position of the denitration catalyst module is triggered, the control unit controls the first drive motor to stop rotating and the conveyor belt 106 to stop moving. According to the feedback of the sensor for detecting the position of the first mounting plate 103, the third drive motor is controlled to drive the first mounting plate 103 to reset. According to the feedback of the sensor for detecting the position of the cantilever 104, the control unit controls the second drive motor to realize the left and right movement of the cantilever 104, and controls the third drive motor to make a single movement of 10-15 cm at the same time, until the air blowing head blows all over the end surface of the denitration catalyst.

[0054] Among them, each sensor can be in the form of a contact switch or an infrared sensor. To ensure the accuracy of the actions of the first drive motor, the second drive motor, and the third drive motor, the first drive motor, the second drive motor, and the third drive motor can be a servo motor or a stepper motor.

[0055] It is understandable that the functions of the control unit are realized by the control unit hardware itself and the program installed in the control unit. It should be noted that the program is written based on the working principle of the soot blowing device of the denitration catalyst module in Example 1. Among them, when writing the program, the specific assembly language, called functions, and data debugging methods used are all prior art, and the program installed in the control unit of this application is not protected by this solution.

[0056] The chip of the control unit may be a single chip microcomputer or a PLC programmable controller.

[0057] The embodiments described above are only preferred specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present utility model according to the technical solution and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A sootblowing device suitable for a denitration catalyst module, comprising a frame (101), a feeding mechanism, a conveying mechanism, a sootblowing mechanism and a plurality of control switches, characterized in that: The feeding mechanism comprises brackets (107) arranged at the head end and the tail end, and each bracket (107) is connected to the frame (101) via a first push rod (108); The conveying mechanism comprises a plurality of conveying belts (106) and a first driving motor, wherein the first driving motor is used to provide power for each conveying belt (106); The soot blowing mechanism comprises two gantries (102) arranged at a frame (101), two trusses (105) are arranged between the two gantries (102), each truss (105) is slidably connected to a cantilever (104), a first mounting plate (103) is slidably connected to the cantilever (104), and the first mounting plate (103) is used to install a blowing head, and A second drive motor for driving each cantilever (104) to slide, and a third drive motor for driving the first mounting plate (103) to slide; Each of the control switches is used to control the feeding mechanism, the conveying mechanism, and the soot blowing mechanism to perform actions.

2. The sootblowing device suitable for a denitration catalyst module according to claim 1, characterized in that: Each bracket (107) is provided with a plurality of rollers (110) and a fourth driving motor for driving each roller (110).

3. The sootblowing device suitable for a denitration catalyst module according to claim 1, characterized in that: A paddle (114) is provided at the frame (101), and the paddle (114) is used to adjust the angle of the catalyst module at the conveyor belt (106).

4. The sootblowing device suitable for a denitration catalyst module according to claim 3, characterized in that: A torsion spring is arranged between each paddle (114) and the frame (101).

5. The sootblowing device suitable for a denitration catalyst module according to claim 1, characterized in that: An adjusting screw rod is arranged between the two trusses (105), and a screw rod (111) of the adjusting screw rod is provided with threads with opposite rotation directions. Nuts adapted to the positive and negative threads on the adjusting screw rod are respectively arranged at the two trusses (105), and a fifth driving motor driving the screw rod (111) is fixedly connected to a second mounting plate (112) between the two trusses (105).

6. The sootblowing device suitable for a denitration catalyst module according to claim 1, characterized in that: It also comprises a sealing cover (115) and a dust removal mechanism, wherein the sealing cover (115) is used to seal the soot blowing mechanism, and the dust removal mechanism is used to dispose of smoke and dust gathered by the sealing cover (115).

7. The sootblowing device suitable for a denitration catalyst module according to claim 6, characterized in that: The sealing cover (115) is provided with a plurality of viewing windows and inspection ports.

8. The sootblowing device suitable for a denitration catalyst module according to claim 6, characterized in that: The dust removal mechanism is a bag dust collector.

9. The sootblowing device suitable for a denitration catalyst module according to claim 1, characterized in that: It also includes a control unit and several sensors, each of which is respectively arranged at the feeding mechanism and the soot blowing mechanism to indicate the material position, and the first drive motor, the second drive motor and the third drive motor and each sensor are electrically connected to the control unit respectively.

10. The sootblowing device suitable for a denitration catalyst module according to claim 9, characterized in that: The chip of the control unit is a single chip microcomputer or a PLC programmable controller.

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