Booster fan for ammonia desulfurization

Abstract

The booster fan comprises a drying bed and a fan body, a front exhaust pipe, a rear exhaust pipe and a supporting seat are fixedly arranged at the top of the drying bed, the bottom end of the front exhaust pipe is communicated with the top of the drying bed, and the top end of the front exhaust pipe is communicated with a front hose. A partition plate is fixedly arranged in the lower portion of the front exhaust pipe, a plurality of electric push rods are fixedly arranged on the inner side wall of the upper portion of the front exhaust pipe, the telescopic ends of the electric push rods are downwards and fixedly connected with a lifting disc, a plurality of inverted conical plugs are arranged at the bottom of the lifting disc, ventilation holes are formed in the partition plate corresponding to the inverted conical plugs, and the head end of the rear exhaust pipe communicates with a rear hose. The front hose is communicated with an air inlet of the fan body through a front quick connector, and the rear hose is communicated with an air outlet of the fan body through a rear quick connector. According to the utility model, the air pressure of the fan body can be flexibly adjusted, and the fan body can be conveniently disassembled and assembled, so that the fan is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a booster fan for ammonia-based desulfurization. Background Art

[0002] At present, in the ammonia desulfurization process of flue gas, the byproduct ammonium sulfate usually needs to be dried in a fluidized drying bed before it can be packaged and sold. During the drying process, the wet ammonium sulfate enters from the feed port of the drying bed, mixes with the hot air entering from the air inlet of the drying bed to achieve drying, and then the air after heat exchange is taken out by the induced draft fan. However, in actual use, the wind pressure of the induced draft fan is not easy to adjust, and the negative pressure of the drying bed cannot be effectively guaranteed according to the actual situation, which is not conducive to the uniform mixing of the material and the hot air, and has a certain impact on the drying quality. In addition, the exhausted air contains gaseous moisture and some corrosive gases, which will cause corrosion and damage to the induced draft fan after long-term use. The induced draft fan is mostly connected to the system through flanges, which is inconvenient to disassemble and assemble, and is not conducive to the convenient replacement of the induced draft fan, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a booster fan for ammonia desulfurization, which can realize flexible adjustment of the wind pressure of the fan body and can be conveniently disassembled and assembled to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a booster fan for ammonia desulfurization, comprising a drying bed and a fan body, the top of the drying bed is fixedly provided with a front exhaust pipe, a rear exhaust pipe and a support seat, the bottom end of the front exhaust pipe is connected with the top of the drying bed, and the top end is connected with a front hose, a partition is fixedly provided in the lower part of the front exhaust pipe, and a plurality of electric push rods uniformly distributed at circumferential intervals are fixedly provided on the inner side wall of the upper part, the telescopic end of each electric push rod is downward and fixedly connected with a lifting plate, a plurality of uniformly distributed inverted cone plugs are fixedly provided at the bottom of each lifting plate, a ventilation hole is provided on the partition corresponding to each inverted cone plug, and the inverted cone plug can be extended into the corresponding ventilation hole, the head end of the rear exhaust pipe is connected with the rear hose, the top of the support seat is provided with a plurality of positioning grooves, and the lower part is provided with a cavity, a double-axis extension motor is fixedly provided in the cavity, and the two ends of the double-axis extension motor The output ends are coaxially fixedly connected with a screw, the tail end of the screw is rotatably connected to the support seat and a slider is threadedly sleeved on it, the support seat corresponding to the slider is provided with a slide groove connected to the cavity, the bottom end of the slide block passes through the corresponding slide groove to the bottom of the support seat and the bottom end is fixedly connected with an L-shaped locking plate. The vertical part of the locking plate is located at the side of the support seat and a plurality of evenly distributed locking rods are fixed on the upper inner side of the vertical part. The fan body is fixed on a mounting seat, the bottom of the mounting seat is fixed with a plurality of positioning blocks, and a plurality of blind holes are opened on the left and right sides. The mounting seat abuts against the top of the support seat, the positioning blocks correspond to the positioning grooves one by one and are plugged in, and the locking rods correspond to the blind holes on the same side one by one and are plugged in, the front hose is connected with the air inlet of the fan body through the front quick connector, and the rear hose is connected with the air outlet of the fan body through the rear quick connector.

[0005] Preferably, the diameter of the large diameter end of the inverted cone plug is matched with the aperture of the corresponding ventilation hole.

[0006] Preferably, the sliding block is matched with the corresponding sliding groove.

[0007] Preferably, the positioning block is matched with the corresponding positioning groove.

[0008] Preferably, the locking rod is matched with the corresponding blind hole.

[0009] Preferably, the support seat is made of foam aluminum.

[0010] The beneficial effect of the utility model is that when the drying bed is working to dry the ammonium sulfate material, the fan body can be operated, and the air after heat exchange in the drying bed can be discharged to the subsequent process through the front exhaust duct, the front hose, the fan body, the rear hose and the rear exhaust duct through the air induction effect of the fan body. During the process, by adjusting the extension degree of the telescopic end of each electric push rod, the height of the corresponding lifting plate can be flexibly adjusted, so that the length of the inverted cone plug extending into the corresponding ventilation hole can be flexibly adjusted, and the size of the gap between the inverted cone plug and the corresponding ventilation hole can be flexibly changed, thereby realizing the flexible adjustment of the air outlet of the front exhaust duct, that is, the air intake of the fan body, and realizing the flexible adjustment of the wind pressure of the fan body by the flexible adjustment of the air intake of the fan body. The operation is simple and more conducive to ensuring the negative pressure inside the drying bed, which is more conducive to the mixed heat exchange of hot air and materials, and ensures the drying quality;

[0011] When the fan body has a problem and needs to be replaced, it is only necessary to disconnect the connection between the front hose and the air inlet of the fan body through the front quick connector, and disconnect the connection between the rear hose and the air outlet of the fan body through the rear quick connector in the shutdown state, and then run the double-axis extension motor to drive the two screws to rotate forward, so that the slider connected to the screw thread can move in the direction away from the double-axis extension motor under the guide limit of the corresponding slide groove, thereby driving the locking plate away from the mounting seat until the locking rod withdraws from the corresponding blind hole, and the plug-in lock of the mounting seat can be released, and then the positioning block can be pulled out to remove the original fan body. Next, after taking the new fan body, first place the mounting seat on it on the support seat, and align and plug the positioning block into the corresponding positioning slot to achieve the initial positioning and installation of the fan body. After that, run the double-axle extension motor again to drive the two screws to rotate in the opposite direction, so that the slider moves toward the direction of the double-axle extension motor, thereby driving the locking plate close to the mounting seat until the locking rod is inserted into the corresponding blind hole, and the mounting seat is plugged and locked, so that the fan body can be further fixed and installed firmly without affecting subsequent use. Finally, connect the front hose to the air inlet of the fan body through the front quick connector, and connect the rear hose to the air outlet of the fan body through the rear quick connector, and then continue to use it. In this way, the fan body can be flexibly and conveniently disassembled and replaced, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the front exhaust duct of the utility model;

[0014] Figure 3 It is a schematic diagram of the top view structure of the partition of the utility model;

[0015] Figure 4 This is a schematic diagram of the main structure of the electric push rod and the lifting plate of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the lifting plate of the utility model when viewed from above;

[0017] Figure 6 This is a schematic diagram of the main structure of the support seat of the utility model;

[0018] Figure 7 This is a schematic diagram of the main structure of the mounting seat of the utility model;

[0019] Figure 8 It is a schematic diagram of the main structure when the mounting seat and the supporting seat of the utility model are connected.

[0020] Numbers in the figure: 1 is a drying bed, 2 is a fan body, 3 is a front exhaust duct, 4 is a rear exhaust duct, 5 is a support seat, 6 is a front hose, 7 is a partition, 8 is an electric push rod, 9 is a lifting plate, 10 is an inverted cone plug, 11 is a ventilation hole, 12 is a rear hose, 13 is a positioning groove, 14 is a cavity, 15 is a double-axis extension motor, 16 is a screw, 17 is a slider, 18 is a slide groove, 19 is a locking plate, 20 is a locking rod, 21 is a mounting seat, 22 is a positioning block, 23 is a blind hole, 24 is a front quick connector, and 25 is a rear quick connector. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0022] like Figures 1 to 8As shown, a booster fan for ammonia desulfurization includes a drying bed 1 and a fan body 2. A front exhaust pipe 3, a rear exhaust pipe 4 and a support seat 5 are fixed on the top of the drying bed 1. The bottom end of the front exhaust pipe 3 is connected to the top of the drying bed 1, and the top end is connected to the front hose 6. A partition 7 is fixed in the lower part of the front exhaust pipe 3, and a plurality of electric push rods 8 are fixed on the inner side wall of the upper part. The telescopic end of each electric push rod 8 is downward and fixedly connected to a lifting plate 9. A plurality of evenly distributed inverted cone plugs 10 are fixed at the bottom of each lifting plate 9. A ventilation hole 11 is opened on the partition 7 corresponding to each inverted cone plug 10, and the inverted cone plug 10 can extend into the corresponding ventilation hole 11. The head end of the rear exhaust pipe 4 is connected to the rear hose 12. A plurality of positioning grooves 13 are provided on the top of the support seat 5, and a cavity 14 is provided in the lower part. A double-axis extension motor 15 is fixedly provided in the cavity 14. Both output ends of the double-axis extension motor 15 are coaxially fixedly connected with a screw 16. The tail end of the screw 16 is rotatably connected to the support seat 5 and a slider 17 is threadedly sleeved thereon. A slide groove 18 communicating with the cavity 14 is provided at the bottom of the support seat 5 corresponding to the slider 17. The bottom end of the slider 17 passes through the corresponding slide groove 18 to the bottom of the support seat 5 and an L-shaped locking plate 19 is fixedly connected to the bottom end. The vertical part of the locking plate 19 is located on the side of the support seat 5 and a plurality of evenly distributed locking rods 20 are fixedly provided on the upper inner side of the vertical part. The fan body 2 is fixed on a mounting seat 21. A plurality of positioning blocks 22 are fixed on the bottom of the mounting seat 21. A plurality of blind holes 23 are opened on both the left and right sides. The mounting seat 21 abuts against the top of the support seat 5. The positioning blocks 22 correspond to and are plugged into the positioning grooves 13 one by one. The locking rods 20 correspond to and are plugged into the blind holes 23 on the same side one by one. The front hose 6 is connected to the air inlet of the fan body 2 through the front quick connector 24. The rear hose 12 is connected to the air outlet of the fan body 2 through the rear quick connector 25.

[0023] When the drying bed is working to dry the ammonium sulfate material, the fan body 2 can be operated, and the air after heat exchange in the drying bed 1 can be discharged to the subsequent process through the front exhaust pipe 3, the front hose 6, the fan body 1, the rear hose 12 and the rear exhaust pipe 4 through the air induction effect of the fan body 2. During the process, by adjusting the extension degree of the telescopic end of each electric push rod 8, the height of the corresponding lifting plate 9 can be flexibly adjusted, so that the length of the inverted cone plug 10 extending into the corresponding ventilation hole 11 can be flexibly adjusted, and the gap size between the inverted cone plug 10 and the corresponding ventilation hole 11 can be flexibly changed, thereby realizing the flexible adjustment of the air outlet of the front exhaust pipe 3, that is, the air intake of the fan body 2, and realizing the flexible adjustment of the wind pressure of the fan body 2 by flexibly adjusting the air intake of the fan body 2. The operation is simple and more conducive to ensuring the negative pressure inside the drying bed, which is more conducive to the mixed heat exchange of hot air and materials and ensures the drying quality;

[0024] When the fan body 2 has a problem and needs to be replaced, it is only necessary to disconnect the connection between the front hose 6 and the air inlet of the fan body 2 through the front quick connector 24, and disconnect the connection between the rear hose 12 and the air outlet of the fan body 2 through the rear quick connector 25, and then run the double-axis extension motor 15 to drive the two screws 16 to rotate forward, so that the slider 17 threadedly sleeved with the screw 16 can move in the direction away from the double-axis extension motor 15 under the guide limit of the corresponding slide groove 18, thereby driving the locking plate 19 away from the mounting seat 21 until the locking rod 20 withdraws from the corresponding blind hole 23, and the plug-in lock of the mounting seat 21 can be released, and then the positioning block 22 can be pulled out, and the original fan body 2 can be disassembled. Next, after taking the new fan body 2, first place the mounting seat 21 on it on the support seat 5, and align and plug the positioning block 22 into the corresponding positioning groove 13, so as to achieve the preliminary positioning and installation of the fan body 2. After that, run the double-axle extension motor 15 again, drive the two screws 16 to rotate in the opposite direction, and move the slider 17 toward the direction of the double-axle extension motor 15, thereby driving the locking plate 19 to approach the mounting seat 21, until the locking rod 20 is inserted into the corresponding blind hole 23, and the mounting seat 21 is inserted and locked, so that the fan body 2 can be further fixed and installed, and the installation is stable and does not affect subsequent use. Finally, connect the front hose 6 to the air inlet of the fan body 2 through the front quick connector 24, and connect the rear hose 12 to the air outlet of the fan body 2 through the rear quick connector 25, and then continue to use it. In this way, the fan body 2 can be flexibly and conveniently disassembled and replaced, which is more practical. The drying bed 1, the fan body 2, the electric push rod 8, the double-axle extension motor 15, the front quick connector 24, and the rear quick connector 25 can all use the existing technology. The front quick connector 24 and the rear quick connector 25 are generally composed of a male head and a female head. When using, you only need to preset the male head or female head on the corresponding hose, and then preset the corresponding female head or male head on the air inlet and outlet of the fan body, and then they can be used together.

[0025] In this embodiment, the diameter of the large diameter end of the inverted cone plug 10 is matched with the aperture of the corresponding ventilation hole 11 to ensure that the inverted cone plug 10 can be smoothly inserted into the corresponding ventilation hole 11 and can completely block the corresponding ventilation hole 11.

[0026] In this embodiment, the slider 17 is matched with the corresponding slide groove 18 to ensure smooth left-right movement of the slider 17 .

[0027] In this embodiment, the positioning block 22 is matched with the corresponding positioning groove 13 to ensure smooth insertion of the positioning block 22 and cooperate to achieve positioning and installation of the fan body 2.

[0028] In this embodiment, the locking rod 20 is matched with the corresponding blind hole 23 to ensure that the locking rod 20 is smoothly inserted into place, thereby realizing the locking installation of the fan body 2.

[0029] In this embodiment, the support seat 5 is made of foam aluminum. Foam aluminum is an existing material with excellent damping and shock absorption characteristics. It can play a certain buffering and shock absorption role, making the fan body 2 more stable and practical during operation.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A booster fan for ammonia desulfurization, comprising a drying bed and a fan body, characterized in that: A front exhaust duct, a rear exhaust duct and a support seat are fixedly provided on the top of the drying bed. The bottom end of the front exhaust duct is connected with the top of the drying bed, and the top end is connected with a front hose. A partition is fixedly provided in the lower part of the front exhaust duct, and a plurality of electric push rods evenly distributed at circumferential intervals are fixedly provided on the inner side wall of the upper part. The telescopic end of each electric push rod is downward and fixedly connected with a lifting plate. A plurality of evenly distributed inverted cone plugs are fixedly provided at the bottom of each lifting plate. A ventilation hole is provided on the partition corresponding to each inverted cone plug, and the inverted cone plug can be extended into the corresponding ventilation hole. The head end of the rear exhaust duct is connected with a rear hose. A plurality of positioning grooves are provided on the top of the support seat, and a cavity is provided in the lower part. A double-axis extension motor is fixedly provided in the cavity. The two output ends of the double-axis extension motor are coaxially fixedly connected with a screw, and the tail end of the screw is connected to the support seat. The seat is rotatably connected and a slider is threadedly sleeved on it, and a slide groove connected to the cavity is opened at the bottom of the support seat corresponding to the slide groove, and the bottom end of the slide slide passes through the corresponding slide groove to the bottom of the support seat and is fixedly connected with an L-shaped locking plate, the vertical part of the locking plate is located at the side of the support seat and a plurality of evenly distributed locking rods are fixed on the upper inner side of the vertical part, the fan body is fixed on a mounting seat, a plurality of positioning blocks are fixed on the bottom of the mounting seat, and a plurality of blind holes are opened on the left and right sides, the mounting seat abuts against the top of the support seat, the positioning blocks correspond to the positioning grooves one by one and are plugged in, the locking rods correspond to the blind holes on the same side one by one and are plugged in, the front hose is connected with the air inlet of the fan body through the front quick connector, and the rear hose is connected with the air outlet of the fan body through the rear quick connector.

2. The booster fan for ammonia desulfurization according to claim 1, characterized in that: The diameter of the large diameter end of the inverted cone plug is matched with the aperture of the corresponding ventilation hole.

3. The booster fan for ammonia desulfurization according to claim 1, characterized in that: The sliding block is matched with the corresponding sliding groove.

4. The booster fan for ammonia desulfurization according to claim 1, characterized in that: The positioning block is matched with the corresponding positioning groove.

5. The booster fan for ammonia desulfurization according to claim 1, characterized in that: The locking rod is matched with the corresponding blind hole.

6. The booster fan for ammonia desulfurization according to claim 1, characterized in that: The support seat is made of foam aluminum.

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