Pneumatic conveying-based fly ash conveying mechanism for dust removal equipment

Abstract

The utility model discloses a fly ash conveying mechanism for dust removal equipment based on pneumatic conveying, and relates to the technical field of pneumatic conveying equipment. The conveying mechanism is located in the fixed box; the outer wall of the filtering mechanism is fixedly connected with the outer wall of the conveying mechanism; the conveying mechanism is arranged, in the conveying process, a conveying pipe transmits the temperature into a fixing box through a heat conduction piece to be cooled, an inner rack is driven to rotate through a knocking mechanism and a gear ring, a limiting rod drives a fixedly-connected knocking block to rotate, the knocking block is driven to rotate, and the conveying mechanism is driven to rotate; and the torsion spring enables the limiting rod to drive the knocking block to rotate and reset and knock the conveying pipe, so that fly ash with high humidity is prevented from being attached in the conveying pipe, and the conveying pipe is blocked due to hardening after long-time use.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic conveying equipment, in particular to a fly ash conveying mechanism for dust removal equipment based on pneumatic conveying. Background Art

[0002] Pneumatic conveying, also known as air flow conveying, uses the energy of air flow to convey granular materials in the direction of air flow in a closed pipe. It is a specific application of fluidization technology. The pneumatic conveying device has a simple structure and is easy to operate. It can be used for horizontal, vertical or inclined conveying. During the conveying process, it can also perform physical operations such as heating, cooling, drying and air flow classification of materials or certain chemical operations.

[0003] However, in the prior art, pneumatic conveying requires that fly ash be transported to dust removal equipment through a conveying pipeline for treatment. When fly ash with high humidity is transported in the pipeline, it may adhere to the inner wall of the pipeline, which may cause compaction or even block the pipeline over time. In addition, existing ash gas dust removal equipment often removes dust through cloth belts or filter screens. Under the action of wind pressure, dust will adhere to the outer wall of the cloth bag or filter screen, blocking the filter holes and affecting the dust removal effect. Frequent cleaning and replacement are required, which is more troublesome. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical solution adopted by the utility model to solve the technical problems thereof is: a fly ash conveying mechanism for dust removal equipment based on pneumatic conveying, comprising: a fixed box; a conveying mechanism, the conveying mechanism being located inside the fixed box; a filtering mechanism, the outer wall of the filtering mechanism being fixedly connected to the outer wall of the conveying mechanism; a centrifugal fan, the centrifugal fan being fixedly connected to the top of the filtering mechanism; the filtering mechanism comprising an air collecting cylinder, the inner wall of the air collecting cylinder being fixedly connected to a filter cylinder, an annular water pipe being arranged at the inner top of the air collecting cylinder, a nozzle being fixedly connected to the outer wall of the annular water pipe, and the nozzle being arranged in an annular array along the central axis of the annular water pipe, and a connecting pipe being fixedly connected to the outer wall of the annular water pipe.

[0005] Preferably, the outer wall of the gas collecting cylinder is fixedly connected to the outer wall of the centrifugal fan, the end of the connecting pipe away from the annular water pipe passes through the gas collecting cylinder and extends to the outside of the gas collecting cylinder, and the end of the connecting pipe away from the gas collecting cylinder is fixedly connected to the inner wall of the fixed box. The ash gas generated by the centrifugal fan is transported through the transport pipe in the transport mechanism and transported into the filter mechanism.

[0006] Preferably, the inner wall of the filter cartridge is rotatably connected to a rotating rod, the top end of the rotating rod is fixedly connected to an impeller, the bottom end of the rotating rod is fixedly connected to a scraper rod, and the outer wall of the scraper rod is slidably connected to the outer wall of the filter cartridge. Under the suction of the centrifugal fan, the impeller is rotated through the rotating rod, and the rotating rod drives the scraper to rotate, thereby scraping off the dust on the outer wall of the filter cartridge.

[0007] Preferably, the conveying mechanism comprises a conveying pipe, the outer wall of the conveying pipe is fixedly connected with a heat conducting sheet, and both ends of the conveying pipe are fixedly connected with a knocking mechanism. The conveying pipe is arranged in a fixed box, cold water is injected into the fixed box, and the temperature of the conveying pipe during transportation is transferred to the fixed box through the heat conducting sheet outside the conveying pipe for cooling through the heat conducting sheet.

[0008] Preferably, the knocking mechanism comprises a fixed ring, the outer wall of the fixed ring is rotatably connected with a toothed ring, the inner wall of the toothed ring is fixedly connected with an inner rack, a transmission gear is arranged outside the toothed ring, the outer wall of the fixed ring is rotatably connected with a limit rod, the outer wall of the limit rod is fixedly connected with a knocking block, the outer wall of the limit rod is fixedly connected with a driving gear, and the outer wall of the driving gear is fixedly connected with a torsion spring. The toothed ring is meshed with the transmission gear, the inner rack is meshed with the driving gear, the end of the torsion spring away from the driving gear is fixedly connected to the fixed ring, and the fixed ring is fixedly connected to the outer wall of the fixed box. Preferably, the outer wall of the delivery pipe is fixedly connected to the inner wall of the fixed box, and the end of the delivery pipe away from the fixed box is fixedly connected to the outer wall of the gas collecting cylinder. The transmission gear drives the meshing gear ring to rotate on the fixed ring, and the rack drives the driving gear to drive the limiting rod to rotate, so that the fixedly connected knocking block rotates. When the inner rack no longer drives the driving gear ring, the torsion spring drives the driving gear to rotate and reset, so that the limiting rod drives the knocking block to rotate and reset, and knocks the conveying pipe to prevent fly ash with high humidity from adhering to and compacting in the conveying pipe.

[0009] The beneficial effects of the utility model are as follows:

[0010] 1. The utility model sets a conveying mechanism. During transportation, the conveying pipe transfers the temperature to the fixed box through the heat conducting sheet for cooling. Through the knocking mechanism, the gear ring drives the inner rack to rotate, so that the limit rod drives the fixedly connected knocking block to rotate. The torsion spring then drives the limit rod to drive the knocking block to rotate and reset, and knock the conveying pipe to prevent fly ash with high humidity from adhering to the conveying pipe, which will be hardened and blocked over time.

[0011] 2. The utility model sets a filtering mechanism, and through the suction of the centrifugal fan, the particles in the gray gas are blocked by the filter cartridge, and the generated air is discharged from the air collecting cylinder through the suction of the centrifugal fan. The connecting pipe transports the water in the fixed box to the nozzle in the annular water pipe for spraying, so that the dust particles are attached to the water and their weight increases and is deposited to the bottom end of the air collecting cylinder. The dust attached to the outer wall of the filter cartridge can also be washed by the sprayed water and finally discharged from the bottom end of the air collecting cylinder. Under the suction of the centrifugal fan, the impeller is rotated by the rotating rod, and the rotating rod drives the scraper to rotate, so as to scrape off the dust on the outer wall of the filter cartridge, thereby avoiding the need to frequently replace and clean the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the filter cartridge of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the knocking mechanism of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the knocking block of the utility model.

[0017] In the figure: 1. fixed box; 2. conveying mechanism; 21. conveying pipe; 22. heat conducting plate; 23. knocking mechanism; 231. fixed ring; 232. gear ring; 233. inner rack; 234. limit rod; 235. knocking block; 236. driving gear; 237. torsion spring; 238. transmission gear; 3. filtering mechanism; 31. air collecting cylinder; 32. connecting pipe; 33. annular water pipe; 34. nozzle; 35. filter cartridge; 36. rotating rod; 37. impeller; 38. scraper rod; 4. centrifugal fan. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0019] Example:

[0020] See also Figure 1 - Figure 5 The utility model provides a technical solution: a fly ash conveying mechanism for dust removal equipment based on pneumatic conveying, comprising: a fixed box 1; a conveying mechanism 2, the conveying mechanism 2 is located inside the fixed box 1; a filtering mechanism 3, the outer wall of the filtering mechanism 3 is fixedly connected to the outer wall of the conveying mechanism 2; a centrifugal fan 4, the centrifugal fan 4 is fixedly connected to the top of the filtering mechanism 3; the filtering mechanism 3 comprises an air collecting cylinder 31, the inner wall of the air collecting cylinder 31 is fixedly connected with a filter cartridge 35, the inner top of the air collecting cylinder 31 is provided with an annular water pipe 33, the outer wall of the annular water pipe 33 is fixedly connected with a nozzle 34, and the nozzle 34 is arranged in a circular array along the central axis of the annular water pipe 33, and the outer wall of the annular water pipe 33 is fixedly connected with a connecting pipe 32.

[0021] The outer wall of the air collecting cylinder 31 is fixedly connected to the outer wall of the centrifugal fan 4, the end of the connecting pipe 32 away from the annular water pipe 33 passes through the air collecting cylinder 31 and extends to the outside of the air collecting cylinder 31, and the end of the connecting pipe 32 away from the air collecting cylinder 31 is fixedly connected to the inner wall of the fixed box 1.

[0022] The inner wall of the filter cartridge 35 is rotatably connected to a rotating rod 36, the top of the rotating rod 36 is fixedly connected to an impeller 37, the bottom of the rotating rod 36 is fixedly connected to a scraper rod 38, and the outer wall of the scraper rod 38 is slidably connected to the outer wall of the filter cartridge 35. Under the suction of the centrifugal fan 4, the impeller 37 is rotated through the fixedly connected rotating rod 36, and the rotating rod 36 drives the fixedly connected scraper rod 38 to rotate, thereby scraping off the dust on the outer wall of the filter cartridge 35.

[0023] The conveying mechanism 2 includes a conveying tube 21, the outer wall of which is fixedly connected to a heat conducting sheet 22, and both ends of the conveying tube 21 are fixedly connected to a knocking mechanism 23. The knocking mechanism 23 includes a fixed ring 231, the outer wall of the fixed ring 231 is rotatably connected to a gear ring 232, the inner wall of the gear ring 232 is fixedly connected to an inner rack 233, a transmission gear 238 is arranged outside the gear ring 232, the outer wall of the fixed ring 231 is rotatably connected to a limit rod 234, the outer wall of the limit rod 234 is fixedly connected to a knocking block 235, the outer wall of the limit rod 234 is fixedly connected to a driving gear 236, and the outer wall of the driving gear 236 is fixedly connected to a torsion spring 237. The external motor drives the fixedly connected transmission gear 238 to rotate, thereby driving the meshing gear ring 232 to rotate on the outer wall of the fixed ring 231, and the gear ring 232 drives the internally fixedly connected inner rack 233 to rotate, and drives the driving gear 236 to drive the limit rod 234 to rotate, so that the fixedly connected knocking block 235 rotates.

[0024] The gear ring 232 is meshed with the transmission gear 238, the inner rack 233 is meshed with the driving gear 236, and the end of the torsion spring 237 away from the driving gear 236 is fixedly connected to the fixing ring 231, and the fixing ring 231 is fixedly connected to the outer wall of the fixing box 1. When the inner rack 233 no longer moves the driving gear 236, the torsion spring 237 drives the fixedly connected driving gear 236 to rotate and reset, so that the limiting rod 234 drives the fixedly connected knocking block 235 to rotate and reset, and knocks the conveying pipe 21.

[0025] The outer wall of the delivery pipe 21 is fixedly connected to the inner wall of the fixed box 1 , and one end of the delivery pipe 21 away from the fixed box 1 is fixedly connected to the outer wall of the gas collecting cylinder 31 .

[0026] Working principle:

[0027] When in use, the ash gas generated by the suction of the centrifugal fan 4 is transported through the conveying pipe 21 in the conveying mechanism 2, and the conveying pipe 21 is arranged in the fixed box 1, and cold water is injected into the fixed box 1. The conveying pipe 21 is transferred to the fixed box 1 through the heat conducting sheet 22 outside the conveying pipe 21 during transportation for cooling. The knocking mechanism 23 is set, and the transmission gear 238 is driven to rotate by the external motor, thereby driving the meshing gear ring 232 to rotate on the fixed ring 231, and the gear ring 232 drives the internal inner rack 233 to rotate, and drives the driving gear 236 to drive the limit rod 234 to rotate, so that the fixedly connected knocking block 235 rotates, and when the inner rack 233 no longer drives the driving gear 236, the torsion spring 237 drives the driving gear 236 to rotate and reset, so that the limit rod 234 drives the knocking block 235 to rotate and reset, and knocks the conveying pipe 21, so as to prevent the fly ash with high humidity from adhering to and hardening in the conveying pipe 21;

[0028] When the ash gas enters the filter mechanism 3 through the conveying pipe 21, the particles in the ash gas are blocked by the filter cartridge 35 through the suction of the centrifugal fan 4, and the generated air is discharged from the air collecting cylinder 31 through the suction of the centrifugal fan 4. In this process, the external water pump is started, and the water in the fixed box 1 is conveyed to the annular water pipe 33 through the connecting pipe 32, and is sprayed out through the nozzle 34. As a result, the dust particles are attached to the water and their weight increases and they are deposited on the bottom end of the air collecting cylinder 31. The dust attached to the outer wall of the filter cartridge 35 can also be washed by the sprayed water, and finally discharged from the bottom end of the air collecting cylinder 31. Under the suction of the centrifugal fan 4, the impeller 37 is rotated through the rotating rod 36, and the rotating rod 36 drives the scraper rod 38 to rotate, thereby scraping off the dust on the outer wall of the filter cartridge 35.

[0029] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A fly ash conveying mechanism for dust removal equipment based on pneumatic conveying, characterized in that: include: Fixed box (1); A conveying mechanism (2), wherein the conveying mechanism (2) is located inside the fixed box (1); A filtering mechanism (3), wherein an outer wall of the filtering mechanism (3) is fixedly connected to an outer wall of the conveying mechanism (2); A centrifugal fan (4), wherein the centrifugal fan (4) is fixedly connected to the top of the filter mechanism (3); The filtering mechanism (3) comprises an air collecting cylinder (31), the inner wall of the air collecting cylinder (31) is fixedly connected to a filter cartridge (35), an annular water pipe (33) is arranged at the inner top of the air collecting cylinder (31), a nozzle (34) is fixedly connected to the outer wall of the annular water pipe (33), and the nozzles (34) are arranged in an annular array along the central axis of the annular water pipe (33), and a connecting pipe (32) is fixedly connected to the outer wall of the annular water pipe (33).

2. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 1, characterized in that: The outer wall of the gas collecting cylinder (31) is fixedly connected to the outer wall of the centrifugal fan (4); one end of the connecting pipe (32) away from the annular water pipe (33) passes through the gas collecting cylinder (31) and extends to the outside of the gas collecting cylinder (31); and one end of the connecting pipe (32) away from the gas collecting cylinder (31) is fixedly connected to the inner wall of the fixed box (1).

3. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 1, characterized in that: The inner wall of the filter cartridge (35) is rotatably connected to a rotating rod (36), the top end of the rotating rod (36) is fixedly connected to an impeller (37), the bottom end of the rotating rod (36) is fixedly connected to a scraper rod (38), and the outer wall of the scraper rod (38) is slidably connected to the outer wall of the filter cartridge (35).

4. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 1, characterized in that: The conveying mechanism (2) comprises a conveying pipe (21), the outer wall of the conveying pipe (21) is fixedly connected with a heat conducting sheet (22), and both ends of the conveying pipe (21) are fixedly connected with a knocking mechanism (23).

5. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 4, characterized in that: The knocking mechanism (23) comprises a fixed ring (231), the outer wall of the fixed ring (231) is rotatably connected to a toothed ring (232), the inner wall of the toothed ring (232) is fixedly connected to an inner rack (233), a transmission gear (238) is arranged outside the toothed ring (232), the outer wall of the fixed ring (231) is rotatably connected to a limit rod (234), the outer wall of the limit rod (234) is fixedly connected to a knocking block (235), the outer wall of the limit rod (234) is fixedly connected to a driving gear (236), and the outer wall of the driving gear (236) is fixedly connected to a torsion spring (237).

6. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 5, characterized in that: The gear ring (232) is meshed with the transmission gear (238), the inner gear rack (233) is meshed with the driving gear (236), one end of the torsion spring (237) away from the driving gear (236) is fixedly connected to the fixing ring (231), and the fixing ring (231) is fixedly connected to the outer wall of the fixing box (1).

7. The fly ash conveying mechanism for dust removal equipment based on pneumatic conveying according to claim 6, characterized in that: The outer wall of the delivery pipe (21) is fixedly connected to the inner wall of the fixed box (1), and one end of the delivery pipe (21) away from the fixed box (1) is fixedly connected to the outer wall of the gas collecting cylinder (31).

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