Skid-mounted platform and dilution fan system

Abstract

The utility model relates to the technical field of skid-mounted platforms, in particular to a skid-mounted platform and dilution fan system which comprises a skid-mounted platform, a fan support is slidably connected to the skid-mounted platform, a dilution fan is fixedly mounted on the fan support, a front-end sliding block is slidably connected to the skid-mounted platform, a first end of a front-end telescopic rod is fixedly connected to the front-end sliding block, and a second end of the front-end telescopic rod is fixedly connected to the front-end telescopic rod. The second end of the front-end telescopic rod is slidably connected with a front-end supporting frame, the skid-mounted platform is provided with a rear-end buffering and limiting assembly and a front-end buffering and limiting assembly, and the dilution fan in use is buffered by arranging the rear-end buffering and limiting assembly and the front-end buffering and limiting assembly; according to the dilution fan skid-mounted device, vibration generated during work of the dilution fan is prevented from affecting operation of the dilution fan, the fan support and the dilution fan are transferred and installed in a unified mode through the skid-mounted platform, stable support is provided for the dilution fan in various complex and changeable scenes, and it is ensured that goods or personnel are safely transported.

Description

Technical Field

[0001] The utility model relates to the technical field of skid-mounted platforms, in particular to a skid-mounted platform and a dilution fan system. Background Art

[0002] Skid-mounted equipment refers to installing a complete set of equipment on a platform for transportation or use as a base. Skid-mounted equipment has a compact structure and occupies a small area, which greatly saves space. Skid-mounted equipment can be moved as a whole, with a high equipment reuse rate. At the same time, it saves a lot of construction work for equipment relocation and transformation in the factory.

[0003] In coal-fired unit projects, flue gas denitrification devices are often used to reduce the emission of nitrogen oxides. In such devices, ammonia is often used as a denitrification agent to react with nitrogen oxides in the flue gas to form harmless nitrogen and water vapor. The dilution fan system can evenly disperse the ammonia in the flue gas to ensure an effective reaction with nitrogen oxides and not form excessive ammonia in the flue gas, thereby avoiding the problem of excessive ammonia concentration. In addition, the dilution fan system can also control the addition rate of ammonia so that it can be adjusted according to actual conditions.

[0004] The utility model with announcement number CN217999976U relates to a vibration reduction base for a dilution fan, including a vibration reduction assembly, which includes a fan body, a plug rod, a bottom plate, a groove, a spring, a damper and a buffer block, the plug rod is fixedly connected to the side of the fan body, the bottom plate is arranged on the lower side of the fan body, a groove is provided on the top surface of the bottom plate, the lower end of the plug rod is movably plugged into the inner wall of the groove, and the two ends of the spring are respectively fixedly connected to the lower end of the plug rod and the bottom surface of the inner wall of the groove. First, the fixing rod is inserted into the inside of the mounting plate and into the hole pre-opened in the main steel beam, and then the interference rod is loosened, and the interference rod is pushed upward by the compression spring and conflicts with the limit rod, thereby prompting the limit rod to pop out from the fixing rod and plug into the hole pre-opened in the main steel beam, thereby facilitating the reduction of the possibility of separation of the fixing rod and the main steel beam, so that the connection between the bottom plate and the main steel beam is more firmly.

[0005] The vibration-damping base in the above patent cannot be used for dilution fans of center specifications, and the dilution fan does not need to be installed on a skid-mounted platform in all cases. Therefore, a skid-mounted platform that is suitable for dilution fans of various specifications and easy to disassemble and assemble is needed. Utility Model Content

[0006] The utility model aims to provide a skid-mounted platform and a dilution fan system, so as to achieve the adaptation and disassembly of the dilution fan system.

[0007] The utility model is realized through the following technical scheme: a skid-mounted platform comprises a machine body component, the machine body component comprises a mounting platform, and a rear end buffer limit component and a front end buffer limit component are arranged on the machine body component.

[0008] The rear end buffer limit assembly includes a rear end support plate arranged on the mounting platform, a plurality of rear end buffer rods are slidably connected to the rear end support plate, a rear end buffer rod is fixedly connected to a rear end connecting plate, a first end of a rear end buffer spring is fixedly connected to the rear end connecting plate, and a second end of the rear end buffer spring is fixedly connected to the rear end support plate.

[0009] The front end buffer limit assembly includes a front end sliding block slidably connected to the mounting platform, the front end sliding block is fixedly connected to the first end of the front end telescopic rod, the second end of the front end telescopic rod is slidably connected to the front end support frame, the front end sliding block is fixedly connected to the first end of the front end buffer spring, the second end of the front end buffer spring is fixedly connected to the front end telescopic rod, an upper limit plate is provided on the front end support frame, the upper limit plate is provided with a plurality of inclined elastic friction parts, the upper limit plate is fixedly connected to the front end support frame, the front end support frame is slidably connected to the sliding rod, the sliding rod is fixedly connected to the extrusion threaded ring, and the front end support frame is also rotatably connected to an upper transmission gear ring, the upper transmission gear ring is threadedly connected to the extrusion threaded ring, and the upper transmission gear ring drives the extrusion threaded ring to extrude the inclined elastic friction part on the upper limit plate, so that the elastic friction part is tightly fitted with the front end telescopic rod and fixed by friction force.

[0010] In order to better realize the utility model, further, the first end of the rear end side telescopic rod is fixedly connected to the rear end support plate, the second end of the rear end side telescopic rod is fixedly connected to the rear end base, the rear end base is fixedly installed on the skid-mounted platform, the first end of the rear end side spring is fixedly connected to the rear end base, the second end of the rear end side spring is fixedly connected to the rear end support plate, and the rear end of the dilution fan is longitudinally buffered by the extension and contraction of the rear end side telescopic rod.

[0011] In order to better realize the utility model, further, the rear end base is fixedly connected with a rear end horizontal axis, and the first ends of two rear end oblique connecting rods are slidably connected to the rear end horizontal axis. The second ends of the rear end oblique connecting rods are rotatably connected to the rear end support plate, and the first ends of the two rear end oblique connecting rods are respectively fixedly connected with the two ends of the rear end transverse spring, so that the rear end of the dilution fan is laterally buffered by the rear end transverse spring.

[0012] In order to better realize the utility model, further, the front end sliding block is rotatably connected to the first end of the driving telescopic rod, the second end of the driving telescopic rod is fixedly connected to a turntable, the driving telescopic rod is also rotatably connected to the front end support frame, the first end of the driving telescopic rod is fixedly connected to a lower driving gear, and the end of the driving telescopic rod close to the upper transmission gear ring is fixedly connected to an upper driving gear, the upper driving gear is meshed with the upper transmission gear ring, and the upper transmission gear ring is driven by the driving gear, thereby controlling the extrusion thread ring to extrude the upper limit plate, thereby fixing the position of the front end support frame.

[0013] In order to better realize the utility model, further, the front end sliding block is transferred and connected with a lower transmission gear ring, the lower transmission gear ring is meshed with the lower driving gear, the front end sliding block is slidably connected with two lower limit sliders, the end of the lower limit slider away from the front end sliding block is fixedly connected with a connecting ring, and a plurality of protrusions are provided on the end of the lower limit slider close to the front end sliding block, and a plurality of grooves are provided in the slide groove on the skid-mounted platform, and the grooves match the protrusions on the lower limit slider, the lower transmission gear ring and the lower limit slider are threadedly connected, and the position of the front end sliding block is fixed by controlling the lower limit slider to contact with the groove on the skid-mounted platform.

[0014] In order to better realize the utility model, further, both ends of the front end support frame are provided with a driving telescopic rod and a turntable, and the two driving telescopic rods are connected by a belt.

[0015] A dilution fan system comprises a skid-mounted platform and a dilution fan mechanism arranged on the skid-mounted platform.

[0016] In order to better realize the utility model, further, the dilution fan mechanism includes a fan bracket and a dilution fan, the dilution fan is arranged on the front end buffer limit assembly, and the fan bracket is connected to the rear end buffer limit assembly.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] 1. The utility model converts the kinetic energy of the fan bracket on the rear end buffer rod into the elastic potential energy of the rear end buffer spring by setting the rear end buffer rod and the rear end buffer spring, thereby buffering the impact force when the fan bracket moves and reducing the speed to avoid damage to parts.

[0019] 2. The utility model provides a rear-end buffer limit assembly and a front-end buffer limit assembly to buffer the dilution fan in use, thereby preventing the vibration generated when the dilution fan is working from affecting the operation of the dilution fan.

[0020] 3. The utility model provides a skid-mounted platform to uniformly transport and install the fan bracket and the dilution fan, and provides stable support for the dilution fan in various complex and changing scenarios to ensure safe transportation of goods or personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 It is a side view of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the skid-mounted platform of the utility model;

[0025] Figure 5 This is a structural schematic diagram of the rear end buffer limit assembly of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the turntable of the utility model;

[0027] Figure 7 for Figure 6 A magnified view of the local structure at point A in the middle;

[0028] Figure 8 It is a structural schematic diagram of the sliding rod of the utility model;

[0029] Fig. 9 The structure of the upper limit plate of the utility model is integrated;

[0030] Fig.10 It is a cross-sectional view of the front telescopic rod of the utility model;

[0031] Among them, 1-body assembly; 2-rear end buffer limit assembly; 3-front end buffer limit assembly; 101-fan bracket; 102-dilution fan; 103-skid-mounted platform; 104-front end telescopic rod; 105-front end support frame; 106-front end sliding block; 107-front end buffer spring; 201-rear end support plate; 202-rear end buffer rod; 203-rear end buffer spring; 204-rear end connecting plate; 205-rear end base; 2 06-rear end side telescopic rod; 207-rear end side spring; 208-rear end oblique connecting rod; 209-rear end horizontal axis; 210-rear end horizontal spring; 301-turntable; 302-drive telescopic rod; 303-upper drive gear; 304-lower transmission gear ring; 305-lower limit slider; 306-connecting ring; 307-upper transmission gear ring; 308-extrusion threaded ring; 309-upper limit plate; 310-sliding rod; 311-lower drive gear. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0033] Embodiment body component 1:

[0034] like Figures 1 to 10 As shown, a skid-mounted platform includes a body component 1, wherein the body component 1 includes a mounting platform 103, and a rear-end buffer limit component 2 and a front-end buffer limit component 3 are arranged on the body component 1.

[0035] The rear end buffer limit assembly 2 includes a rear end support plate 201 arranged on the mounting platform, and a plurality of rear end buffer rods 202 are slidably connected to the rear end support plate 201, and a rear end connecting plate 204 is fixedly connected to the second end of the rear end buffer rod 202, and a first end of a rear end buffer spring 203 is fixedly connected to the rear end connecting plate 204, and the second end of the rear end buffer spring 203 is fixedly connected to the rear end support plate 201.

[0036] The front end buffer limit assembly 3 includes a front end sliding block 106 slidably connected to the mounting platform 103, the front end sliding block 106 is fixedly connected to the first end of the front end telescopic rod 104, the second end of the front end telescopic rod 104 is slidably connected to the front end support frame 105, the front end sliding block 106 is fixedly connected to the first end of the front end buffer spring 107, the second end of the front end buffer spring 107 is fixedly connected to the front end telescopic rod 104, and the front end support frame 105 is provided with an upper limit plate 309, and the upper limit plate 309 is provided with a plurality of inclined elastic The friction part, the upper limit plate 309 is fixedly connected to the front end support frame 105, the front end support frame 105 is slidably connected with a sliding rod 310, the sliding rod 310 is fixedly connected with an extrusion threaded ring 308, and the front end support frame 105 is also rotatably connected with an upper transmission gear ring 307, the upper transmission gear ring 307 is threadedly connected with the extrusion threaded ring 308, and the upper transmission gear ring 307 drives the extrusion threaded ring 308 to extrude the inclined elastic friction part on the upper limit plate 309, so that the elastic friction part and the front end telescopic rod 104 are tightly fitted and fixed by friction.

[0037] Rollers are provided on the skid-mounted platform 103 for moving the wind turbine support 101 on the skid-mounted platform 103 .

[0038] When in use, first push the front support frame 105 to drive the front telescopic rod 104 and the front buffer limit assembly 3 to separate from the skid-mounted platform 103, and then place the fan bracket 101 and the dilution fan 102 on the skid-mounted platform 103, so that they can move on the skid-mounted platform 103 by relying on the rollers on the skid-mounted platform 103. When the fan bracket 101 contacts the rear buffer rod 202, continue to move the rear buffer rod 202 to insert it into the hole on the fan bracket 101, so that the rear buffer rod 202 can limit the fan. The fan bracket 101 moves sideways, and when the rear end buffer rod 202 is fully inserted into the fan bracket 101, the fan bracket 101 continues to move, and the fan bracket 101 pushes the rear end buffer rod 202 to slide on the rear end support plate 201, thereby stretching the rear end buffer spring 203 on the rear end buffer rod 202, thereby buffering the fan bracket 101 to prevent the fan bracket 101 from moving too fast and being unable to stop in time, or from reaching the end point of the skid-mounted platform 103 and causing excessive impact force to damage parts.

[0039] When the fan bracket 101 reaches the end point of the skid-mounted platform 103, the front sliding block 106 and other parts are reinserted into the skid-mounted platform 103, and the front sliding block 106 is controlled to slide on the skid-mounted platform 103, so that the arc-shaped groove on the front support frame 105 is tightly fitted with the dilution fan 102, and then the upper transmission gear ring 307 is controlled to rotate by the turntable 301, and the upper transmission gear ring 307 drives the extrusion thread ring 308 through the thread drive. Due to the restriction of the sliding rod 310, the extrusion thread ring 308 moves to the side away from the front support frame 105, thereby The threaded ring 308 is squeezed to approach and squeeze the upper limit plate 309, so that the upper limit plate 309 is tightly fitted to the front end telescopic rod 104, and finally the horizontal height of the front end support frame 105 on the front end telescopic rod 104 is fixed by the friction force between the upper limit plate 309 and the front end telescopic rod 104, and at the same time, the lower transmission gear ring 304 is controlled to slide on the front end sliding block 106, so that the protrusion on the lower transmission gear ring 304 is inserted into the groove in the slide groove on the skid-mounted platform 103, thereby controlling the position of the front end sliding block 106 and the front end support frame 105 on the skid-mounted platform 103.

[0040] Embodiment 2:

[0041] like Figure 5 As shown, the first end of the rear end side telescopic rod 206 is fixedly connected to the rear end support plate 201, the second end of the rear end side telescopic rod 206 is fixedly connected to the rear end base 205, the rear end base 205 is fixedly installed on the skid-mounted platform 103, the first end of the rear end side spring 207 is fixedly connected to the rear end base 205, the second end of the rear end side spring 207 is fixedly connected to the rear end support plate 201, and the rear end of the dilution fan is longitudinally buffered by the extension and retraction of the rear end side telescopic rod 206.

[0042] The rear end base 205 is fixedly connected to a rear end transverse axis 209, and the first ends of two rear end oblique connecting rods 208 are slidably connected to the rear end transverse axis 209. The second ends of the rear end oblique connecting rods 208 are rotatably connected to the rear end support plate 201. The first ends of the two rear end oblique connecting rods 208 are respectively fixedly connected to the two ends of a rear end transverse spring 210, and the rear end of the dilution fan is laterally buffered by the rear end transverse spring 210.

[0043] When in use, the fan bracket 101 and the dilution fan 102 are transported and supported by the skid-mounted platform 103, and the fan bracket 101 and the dilution fan 102 can also be removed from the skid-mounted platform 103 and placed separately for use. When the fan bracket 101, the dilution fan 102 and the skid-mounted platform 103 are used as a whole, the dilution fan 102 will generate vibration when working, and the vibration will be transmitted to the skid-mounted platform 103 through the fan bracket 101, and then to the rear buffer rod 202 and the front telescopic rod 104. When the rear buffer rod 202 is vibrated, the rear buffer rod 202 transmits the vibration to the rear support plate 201, and the rear support plate 201 compresses the rear side springs 207 on both sides downward, and pushes the rear transverse spring 210 on the rear transverse axis 209 through the rear oblique connecting rod 208, and the rear oblique connecting rods 208 on both sides jointly squeeze the rear transverse spring 210, thereby buffering the vibration of the dilution fan 102 when working.

[0044] Embodiment 3:

[0045] like Figures 7 to 10 As shown, the front end sliding block 106 is rotatably connected to the first end of the driving telescopic rod 302, and the second end of the driving telescopic rod 302 is fixedly connected to the turntable 301. The driving telescopic rod 302 is also rotatably connected to the front end support frame 105, and the first end of the driving telescopic rod 302 is fixedly connected to the lower driving gear 311, and the end of the driving telescopic rod 302 close to the upper transmission gear ring 307 is fixedly connected to the upper driving gear 303, and the upper driving gear 303 is meshed with the upper transmission gear ring 307. The upper transmission gear ring 307 is driven by the driving gear 303, and then the extrusion thread ring 308 is controlled to extrude the upper limit plate 309, thereby fixing the position of the front end support frame 105.

[0046] When it is necessary to fix the front end support frame 105, that is, to fix the horizontal height of the front end support frame 105 on the front end telescopic rod 104, the turntable 301 is manually rotated to transmit power by driving the telescopic rod 302 to drive the upper driving gear 303 and the lower driving gear 311 to rotate. Because the telescopic rod 302 is driven to mesh with the upper transmission gear ring 307, the telescopic rod 302 drives the upper transmission gear ring 307 to rotate, and then the upper transmission gear ring 307 is connected to the extrusion thread ring 308 through a threaded connection, and under the limiting action of the sliding rod 310 on the extrusion thread ring 308, the upper transmission gear ring 307 drives the extrusion thread ring 308 and the sliding rod 310 to move downward on the front end support frame 105, so that the extrusion thread ring 308 contacts and squeezes the upper limit plate 309, and then the upper limit plate 309 is tightly fitted with the front end telescopic rod 104 to fix the position of the front end support frame 105.

[0047] The front end sliding block 106 is transfer-connected with a lower transmission gear ring 304, which meshes with a lower driving gear 311, and the front end sliding block 106 is slidably connected with two lower limit sliders 305, and the end of the lower limit slider 305 away from the front end sliding block 106 is fixedly connected with a connecting ring 306, and the end of the lower limit slider 305 close to the front end sliding block 106 is provided with a plurality of protrusions, and the slide groove on the skid-mounted platform 103 is provided with a plurality of grooves, and the grooves match the protrusions on the lower limit slider 305, and the lower transmission gear ring 304 is threadedly connected to the lower limit slider 305, and the position of the front end sliding block 106 is fixed by controlling the lower limit slider 305 to contact with the groove on the skid-mounted platform 103.

[0048] When it is necessary to fix the position of the front-end sliding block 106 on the skid-mounted platform 103, the rotation of the turntable 301 drives the lower driving gear 311 to rotate. Due to the meshing relationship between the lower driving gear 311 and the lower transmission gear ring 304, the lower driving gear 311 drives the lower transmission gear ring 304 to rotate. Since the lower transmission gear ring 304 is threadedly connected to the lower limit slider 305, the lower transmission gear ring 304 drives the lower limit slider 305 to slide downward on the front-end sliding block 106, and then the protrusion on the lower limit slider 305 is inserted into the groove in the slide groove of the front-end sliding block 106, thereby fixing the position of the front-end sliding block 106 on the skid-mounted platform 103.

[0049] Both ends of the front end support frame 105 are provided with a driving telescopic rod 302 and a rotating disk 301 , and the two driving telescopic rods 302 are connected by a belt.

[0050] When in use, the vibration generated by the dilution fan 102 during operation drives the front support frame 105 and the front telescopic rod 104 to shake up and down, so that the front telescopic rod 104 compresses the front buffer spring 107 downwards for buffering.

[0051] The stable structure and large base of the skid-mounted platform 103 enable the dilution fan 102 to work on uneven ground and provide stable support to ensure safe transportation of the dilution fan 102 or personnel.

[0052] A dilution fan system comprises the skid-mounted platform and a dilution fan mechanism arranged on the skid-mounted platform.

[0053] The dilution fan mechanism comprises a fan support 101 and a dilution fan 102 . The dilution fan 102 is arranged on the front buffer limit assembly 3 . The fan support 101 is connected to the rear buffer limit assembly 1 .

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A skid-mounted platform, comprising a body assembly (1), characterized in that: The machine body component (1) comprises a mounting platform (103), and a rear end buffer limiter component (2) and a front end buffer limiter component (3) are arranged on the machine body component (1); The rear end buffer limit assembly (2) comprises a rear end support plate (201) arranged on the mounting platform, a plurality of rear end buffer rods (202) are slidably connected to the rear end support plate (201), a rear end buffer rod (202) is fixedly connected to a rear end connecting plate (204) at the second end, a first end of a rear end buffer spring (203) is fixedly connected to the rear end connecting plate (204), and a second end of the rear end buffer spring (203) is fixedly connected to the rear end support plate (201); The front end buffer limit assembly (3) comprises a front end sliding block (106) slidably connected to the mounting platform (103); the front end sliding block (106) is fixedly connected to the first end of the front end telescopic rod (104); the second end of the front end telescopic rod (104) is slidably connected to the front end support frame (105); the front end sliding block (106) is fixedly connected to the first end of the front end buffer spring (107); the second end of the front end buffer spring (107) is fixedly connected to the front end telescopic rod (104); an upper limit plate (309) is provided on the front end support frame (105); the upper limit plate (309) is provided with a plurality of inclined elastic The friction piece, the upper limit plate (309) is fixedly connected to the front end support frame (105), the front end support frame (105) is slidably connected to a sliding rod (310), the sliding rod (310) is fixedly connected to an extrusion threaded ring (308), and the front end support frame (105) is also rotatably connected to an upper transmission gear ring (307), the upper transmission gear ring (307) is threadedly connected to the extrusion threaded ring (308), and the upper transmission gear ring (307) drives the extrusion threaded ring (308) to squeeze the inclined elastic friction piece on the upper limit plate (309), so that the elastic friction piece and the front end telescopic rod (104) are closely fitted and fixed by friction force.

2. A skid-mounted platform according to claim 1, characterized in that: The rear end support plate (201) is fixedly connected to a first end of a rear end telescopic rod (206), the second end of the rear end telescopic rod (206) is fixedly connected to a rear end base (205), the rear end base (205) is fixedly mounted on the skid-mounted platform (103), the rear end base (205) is fixedly connected to a first end of a rear end spring (207), the second end of the rear end spring (207) is fixedly connected to the rear end support plate (201), and longitudinal buffering is performed on the rear end of the dilution fan through the extension and retraction of the rear end telescopic rod (206).

3. A skid-mounted platform according to claim 2, characterized in that: The rear end base (205) is fixedly connected to a rear end transverse axis (209), the rear end transverse axis (209) is slidably connected to the first ends of two rear end oblique connecting rods (208), the second ends of the rear end oblique connecting rods (208) are rotatably connected to the rear end support plate (201), and the first ends of the two rear end oblique connecting rods (208) are respectively fixedly connected to the two ends of a rear end transverse spring (210), so that the rear end of the dilution fan is buffered laterally by the rear end transverse spring (210).

4. A skid-mounted platform according to claim 3, characterized in that: The front end sliding block (106) is rotatably connected to the first end of the driving telescopic rod (302), and the second end of the driving telescopic rod (302) is fixedly connected to the turntable (301). The driving telescopic rod (302) is also rotatably connected to the front end support frame (105), and the first end of the driving telescopic rod (302) is fixedly connected to the lower driving gear (311). An end of the driving telescopic rod (302) close to the upper transmission gear ring (307) is fixedly connected to the upper driving gear (303). The upper driving gear (303) is meshed with the upper transmission gear ring (307), and the upper transmission gear ring (307) is driven by the driving gear (303), thereby controlling the extrusion thread ring (308) to extrude the upper limit plate (309), thereby fixing the position of the front end support frame (105).

5. The skid-mounted platform according to claim 4, characterized in that: The front end sliding block (106) is connected to a lower transmission gear ring (304), which meshes with a lower driving gear (311). The front end sliding block (106) is slidably connected to two lower limit sliders (305). An end of the lower limit slider (305) away from the front end sliding block (106) is fixedly connected to a connecting ring (306). An end of the lower limit slider (305) close to the front end sliding block (106) is provided with a plurality of protrusions. A plurality of grooves are provided in the slide groove on the prying platform (103), and the grooves match the protrusions on the lower limit slider (305). The lower transmission gear ring (304) and the lower limit slider (305) are threadedly connected. The position of the front end sliding block (106) is fixed by controlling the lower limit slider (305) to contact with the groove on the prying platform (103).

6. The skid-mounted platform according to claim 5, characterized in that: Both ends of the front end support frame (105) are provided with a driving telescopic rod (302) and a rotating disk (301), and the two driving telescopic rods (302) are connected by a belt.

7. A dilution fan system, characterized in that: It comprises the skid-mounted platform according to any one of claims 1 to 6 and a dilution fan mechanism arranged on the skid-mounted platform.

8. A dilution fan system according to claim 7, characterized in that: The dilution fan mechanism comprises a fan support (101) and a dilution fan (102); the dilution fan (102) is arranged on a front buffer stop assembly (3); and the fan support (101) is connected to a rear buffer stop assembly (2).

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