A plow knife dryer with an exhaust gas treatment structure

Abstract

The present invention discloses a plow knife dryer with an exhaust gas treatment structure, which relates to the field of plow knife dryers. In the present invention, a heating component heats and keeps warm the dust removal branch pipe, preventing fine dust in the exhaust gas from condensing into a colloid on the inner wall of the dust removal branch pipe and gradually blocking the dust removal branch pipe, so that the dust removal branch pipe remains unobstructed; when the main body of the plow knife dryer discharges exhaust gas through the branch pipe body, the wind pressure during the exhaust gas discharge drives the wind power driving component to rotate and work, so that the wind power driving component simultaneously drives the inner wall cleaning component in the branch pipe body and the cleaning and conveying component in the main pipe body to rotate and work at the same time. The inner wall cleaning component removes the dust adhering to the inner wall of the branch pipe body, keeping the inside of the branch pipe body unobstructed. The cleaning and conveying component scrapes and cleans the dust and colloid on the inner wall of the main pipe body, and conveys the cleaned dust and colloid towards the direction of the dust collector, preventing the cleaned dust and colloid from adhering to the inner wall of the main pipe body again during the subsequent conveying process.

Description

Technical Field

[0001] The present invention belongs to the field of plow knife dryers. Specifically, it particularly relates to a plow knife dryer with a tail gas treatment structure. Background Art

[0002] A plow knife dryer is a mechanical device that uses heat energy to reduce the moisture content of materials, and is used for drying and stirring operations on objects. By heating, the moisture (generally referring to water or other volatile liquid components) in the materials vaporizes and escapes to obtain solid materials with a specified moisture content.

[0003] During the working process of the plow knife dryer, the tail gas needs to be discharged and transported to the dust collector through the exhaust pipe. The dust collector filters and removes the dust from the tail gas before discharging it to prevent air pollution caused by direct tail gas discharge. Since the tail gas in the plow knife dryer is generated by high-temperature heating, when the tail gas is transported to the exhaust pipe with a lower temperature, the fine dust in the tail gas is easily condensed into larger colloidal particles on the inner wall of the exhaust pipe. As a result, during long-term use of the exhaust pipe, it will be gradually blocked by the colloid, thus affecting the normal transportation and discharge of the tail gas; on the other hand, some of the fine dust in the tail gas will directly adhere to the inner wall of the exhaust pipe during the discharge and transportation process. With the adsorption and accumulation of the dust, it will also gradually cause the blockage of the exhaust pipe. Summary of the Invention

[0004] In view of the problems in the related art, the present invention provides a plow knife dryer with a tail gas treatment structure, which heats and keeps the dust removal branch pipe warm through a heating component to prevent the fine dust in the tail gas from condensing into colloids on the inner wall of the dust removal branch pipe and gradually blocking the dust removal branch pipe. At the same time, a cleaning mechanism is used to scrape and clean the inner walls of the dust removal branch pipe and the dust removal main pipe to overcome the above technical problems existing in the related art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention provides a plow knife dryer with a tail gas treatment structure, including a plow knife dryer main body, dust removal branch pipes, a dust removal main pipe, and a dust collector. A plurality of the dust removal branch pipes are provided, and the plurality of dust removal branch pipes are arranged in sequence and connected and installed at the top end of the plow knife dryer main body. The dust removal main pipe is inclined and arranged above the plow knife dryer main body. The top ends of the plurality of dust removal branch pipes are all communicated with the bottom of the dust removal main pipe. The dust collector is arranged at one end of the plow knife dryer main body, and the air inlet of the dust collector is communicated with the inclined downward end of the dust removal main pipe;

[0007] The dust removal branch pipe includes a branch pipe body, a heating component, a wind drive component, a clutch component and an inner wall cleaning component. The branch pipe body is connected and installed between the plow dryer body and the dust removal main pipe. The heating component is wrapped and installed on the outer ring of the branch pipe body to heat and keep the branch pipe body warm.

[0008] The wind driving assembly is rotatably mounted in the branch pipe body, the inner wall cleaning assembly is rotatably mounted on the inner wall of the branch pipe body, and the inner wall cleaning assembly is transmission-connected to the wind driving assembly via a clutch assembly;

[0009] When the main body of the coulter dryer discharges exhaust gas through the branch pipe body, the wind pressure during exhaust gas discharge drives the wind drive component to rotate and work, and at the same time, the wind pressure drives the clutch component to disconnect, so that the inner wall cleaning component is disconnected from the wind drive component. At this time, the wind drive component does not drive the inner wall cleaning component to work synchronously; and when the branch pipe body is gradually blocked by dust in the exhaust gas so that the wind pressure in the branch pipe body is reduced, the clutch component is reset and closed, so that the inner wall cleaning component is connected to the wind drive component in transmission. At this time, the wind drive component drives the inner wall cleaning component to rotate synchronously, so that the inner wall cleaning component cleans the inner wall of the branch pipe body;

[0010] The dust removal main pipe includes a main pipe body, a transmission assembly and a cleaning and conveying assembly. The cleaning and conveying assembly is rotatably installed on the inner wall of the main pipe body, and the cleaning and conveying assembly is transmission-connected to the corresponding wind-driven assembly through the transmission assembly, so that when the wind-driven assembly rotates, the cleaning and conveying assembly is driven to rotate synchronously on the inner wall of the main pipe body, so that the cleaning and conveying assembly scrapes and cleans the dust and colloid on the inner wall of the main pipe body, and transports the cleaned dust and colloid toward the dust collector.

[0011] Furthermore, the heating component includes an electric heating wire, thermal insulation cotton and an outer protective tube. The electric heating wire is wound and installed on the outer wall of the branch pipe body, the thermal insulation cotton is covered and installed on the surface of the branch pipe body and the electric heating wire, and the outer protective tube is sleeved on the surface of the thermal insulation cotton.

[0012] Furthermore, the wind-driven assembly includes a driving shaft, a turbine, and a support seat, wherein the support seat is fixedly installed inside the branch pipe body, the driving shaft is rotatably installed on the support seat, and the turbine is fixedly installed on the upper end of the driving shaft.

[0013] Furthermore, the clutch assembly includes a spring, a clutch wheel and a first spline, the clutch wheel is rotatably mounted on the bottom end of the drive shaft, and a plurality of circumferentially distributed pins are fixedly mounted on the top surface of the clutch wheel;

[0014] The first spline is fixedly mounted on the surface of the lower end of the driving shaft, and the lower end of the driving shaft is slidably mounted with a pressure plate through the first spline, and the pressure plate is provided with a plurality of pin holes corresponding to the pin shafts one by one;

[0015] The spring is sleeved on the outer ring of the driving shaft, and one end of the spring abuts against the bottom surface of the supporting seat, and the other end of the spring abuts against the top surface of the pressure plate.

[0016] Furthermore, the inner wall cleaning assembly includes multiple scrapers and multiple connecting rods, and the multiple connecting rods are fixedly installed on the outer ring of the clutch wheel along the circumference. The scraper is fixedly installed at the end of each connecting rod, and one side of the scraper is tightly attached to the inner wall of the branch pipe body.

[0017] Furthermore, the cleaning and conveying assembly includes a spiral scraper and a support frame, the support frame is fixedly mounted on the inner wall of the main pipe body, one end of the support frame extends to the axial center position of the main pipe body and is rotatably mounted with a rotating shaft;

[0018] The spiral scraper is rotatably mounted on the inner wall of the main pipe body, and the spiral scraper is fixedly connected to the rotating shaft via a connecting strip.

[0019] Furthermore, the transmission assembly includes a driven bevel gear and a driving bevel gear, the driven bevel gear is fixedly mounted on the rotating shaft, the driving bevel gear is fixedly mounted on the top end of the driving shaft, and the driving bevel gear and the driven bevel gear are meshingly transmission connected.

[0020] Furthermore, the top end of the branch pipe body extends upward to the interior of the main pipe body;

[0021] A scraper ring is rotatably mounted on the outer ring of the upper end of the branch pipe body, and the scraper ring is connected to the drive shaft through a special-shaped connecting rod.

[0022] Furthermore, a No. 2 spline is fixedly installed on the surface of the upper end of the driving shaft, a lifting sleeve is slidably installed on the surface of the driving shaft through the No. 2 spline, one end of the special-shaped connecting rod is fixedly connected to the outer ring of the lifting sleeve, and the other end of the special-shaped connecting rod is rotatably connected to the top surface of the scraper ring;

[0023] A flexible scraper closely attached to the outer surface of the branch pipe body is fixedly mounted on the inner side surface of the lower end of the special-shaped connecting rod.

[0024] The present invention has the following beneficial effects:

[0025] 1. In the present invention, a heating component is installed on the surface of the dust removal branch pipe, which can heat and insulate the dust removal branch pipe through the heating component to increase the temperature inside the dust removal branch pipe, prevent the fine dust in the exhaust gas from condensing into colloid on the inner wall of the dust removal branch pipe and gradually blocking the dust removal branch pipe, so that the dust removal branch pipe remains unobstructed, which is beneficial to the normal transportation and discharge of the exhaust gas in the main body of the coulter dryer.

[0026] 2. When the main body of the plow knife dryer discharges the tail gas through the branch pipe body in the present invention, the wind pressure during the tail gas emission drives the wind power driving assembly to rotate and work, so that the wind power driving assembly simultaneously drives the inner wall cleaning assembly in the branch pipe body and the cleaning and conveying assembly in the main pipe body to rotate and work. Among them, the inner wall cleaning assembly scrapes and cleans the inner wall of the branch pipe body, removes the dust adhering to the inner wall of the branch pipe body, keeps the inside of the branch pipe body unobstructed, the cleaning and conveying assembly scrapes and cleans the dust and colloid on the inner wall of the main pipe body, and conveys the scraped dust and colloid towards the dust collector, preventing the scraped dust and colloid from adhering to the inner wall of the main pipe body again during the subsequent conveying process, and improving the cleaning effect on the inside of the main pipe body.

[0027] 3. In the present invention, since the heating assembly is arranged on the surface of the dust removal branch pipe, the dust in the dust removal branch pipe is not easily condensed into colloid, so that the dust removal branch pipe is not easily blocked by colloid relative to the dust removal main pipe. When the dust removal branch pipe is in an unobstructed state, the wind force passing through it is greater. At this time, the wind pressure drives the clutch assembly to disconnect, disconnecting the connection between the wind power driving assembly and the inner wall cleaning assembly, and no longer driving the inner wall cleaning assembly to rotate and work, but only driving the cleaning and conveying assembly in the main pipe body to rotate and work, thereby reducing the working load of the wind power driving assembly, enabling the wind power driving assembly to drive the cleaning and conveying assembly to rotate and work more quickly, so as to improve the cleaning effect of the cleaning and conveying assembly on the main pipe body.

[0028] 4. In the present invention, the exhaust pipe is jointly composed of the dust removal branch pipe and the dust removal main pipe, and the dust removal branch pipe is heated and insulated by the heating assembly to prevent the fine dust in the tail gas from condensing into large particle colloid in the dust removal branch pipe. No heating assembly is arranged in the dust removal main pipe, so that the dust can condense into large particle colloid in the dust removal main pipe, and then the cleaning and conveying assembly conveys the large particle colloid towards the dust collector for cleaning. Since the large particle colloid has a greater gravity, when it is conveyed to the dust collector, it can directly fall downward under the action of gravity without being filtered and separated by the filter element in the dust collector, thereby reducing the working burden of the filter element and improving the filtering efficiency of the dust collector.

[0029] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is one of the partial sectional structure schematic diagrams of the plow knife dryer with a tail gas treatment structure according to the present invention;

[0032] Figure 2 For the present invention Figure 1 is a schematic diagram of the partially enlarged structure at position A;

[0033] Figure 3 is the second schematic diagram of the partially cut-away structure of the plow knife dryer with a tail gas treatment structure according to the present invention;

[0034] Figure 4 For the present invention Figure 3 is a schematic diagram of the partially enlarged structure at position B;

[0035] Figure 5 For the present invention Figure 3 is a schematic diagram of the partially enlarged structure at position C;

[0036] Figure 6 is the third schematic diagram of the partially cut-away structure of the plow knife dryer with a tail gas treatment structure according to the present invention;

[0037] Figure 7 For the present invention Figure 6 is a schematic diagram of the partially enlarged structure at position D;

[0038] Figure 8 is a three-dimensional structure schematic diagram of the plow knife dryer with a tail gas treatment structure according to the present invention.

[0039] In the figure: 1. Main body of the plow knife dryer; 2. Dust removal branch pipe; 21. Branch pipe body; 22. Electric heating wire; 23. Heat insulation cotton; 24. Outer protection pipe; 25. Driving shaft; 26. Turbine; 27. Support seat; 28. Spring; 29. Pin hole; 210. Pressure plate; 211. Scraper; 212. Clutch wheel; 213. Connecting rod; 214. First spline; 215. Pin shaft; 3. Dust removal main pipe; 31. Main pipe body; 32. Spiral scraping strip; 33. Rotating shaft; 34. Support frame; 35. Driven bevel gear; 36. Driving bevel gear; 37. Connecting strip; 38. Second spline; 39. Lifting sliding sleeve; 310. Scraping ring; 311. Special-shaped connecting rod; 312. Flexible scraping blade; 4. Dust collector. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the invention without making creative efforts shall fall within the scope of protection of the invention.

[0041] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0042] See also Figure 1 , Figure 2 , Figure 8 As shown, the present invention is a plowshare dryer with an exhaust gas treatment structure, comprising a plowshare dryer body 1, a dust removal branch pipe 2, a dust removal main pipe 3 and a dust collector 4, wherein a plurality of dust removal branch pipes 2 are provided, and the plurality of dust removal branch pipes 2 are sequentially arranged and connected and installed on the top of the plowshare dryer body 1, the dust removal main pipe 3 is obliquely arranged above the plowshare dryer body 1, the tops of the plurality of dust removal branch pipes 2 are all connected to the bottom of the dust removal main pipe 3, the dust collector 4 is provided at one end of the plowshare dryer body 1, and the air inlet of the dust collector 4 is obliquely connected to the dust removal main pipe 3 The downward end is connected; the dust removal branch pipe 2 includes a branch pipe body 21, a heating component, a wind drive component, a clutch component and an inner wall cleaning component. The branch pipe body 21 is connected and installed between the plow dryer body 1 and the dust removal main pipe 3. The heating component is wrapped and installed on the outer ring of the branch pipe body 21, which is used to heat and keep the branch pipe body 21 warm; the wind drive component is rotatably installed in the branch pipe body 21, and the inner wall cleaning component is rotatably installed on the inner wall of the branch pipe body 21, and the inner wall cleaning component is transmission-connected to the wind drive component through the clutch component;

[0043] When the plow dryer main body 1 discharges exhaust gas through the branch pipe body 21, the wind pressure during exhaust gas discharge drives the wind drive component to rotate and work, and at the same time, the wind pressure drives the clutch component to disconnect, so that the inner wall cleaning component is disconnected from the wind drive component. At this time, the wind drive component does not drive the inner wall cleaning component to work synchronously; and when the branch pipe body 21 is gradually blocked by dust in the exhaust gas so that the wind pressure in the branch pipe body 21 is reduced, the clutch component is reset and closed, so that the inner wall cleaning component is connected to the wind drive component in transmission. At this time, the wind drive component drives the inner wall cleaning component to rotate synchronously, so that The inner wall cleaning component cleans the inner wall of the branch pipe body 21; the dust removal main pipe 3 includes a main pipe body 31, a transmission component and a cleaning and conveying component, the cleaning and conveying component is rotatably mounted on the inner wall of the main pipe body 31, and the cleaning and conveying component is connected to the corresponding wind driving component through the transmission component, so that when the wind driving component rotates, the cleaning and conveying component is driven to rotate synchronously on the inner wall of the main pipe body 31, so that the cleaning and conveying component scrapes and cleans the dust and colloid on the inner wall of the main pipe body 31, and conveys the cleaned dust and colloid to the direction of the dust collector 4;

[0044] The present invention heats and keeps the dust removal branch pipe 2 warm through a heating component to increase the temperature inside the dust removal branch pipe 2, prevent fine dust in the tail gas from condensing into a colloid on the inner wall of the dust removal branch pipe 2 and gradually block the dust removal branch pipe 2, so that the dust removal branch pipe 2 remains unobstructed, which is beneficial to the normal transportation and emission of the tail gas in the main body 1 of the plow dryer; when the main body 1 of the plow dryer discharges the tail gas through the branch pipe body 21, the wind pressure during the tail gas emission drives the wind power driving component to rotate and work, so that the wind power driving component simultaneously drives the inner wall cleaning component in the branch pipe body 21 and the cleaning and conveying component in the main pipe body 31 to rotate and work at the same time. Among them, the inner wall cleaning component scrapes and cleans the inner wall of the branch pipe body 21 to remove the dust adhered to the inner wall of the branch pipe body 21, so that the inside of the branch pipe body 21 remains unobstructed. The cleaning and conveying component scrapes and cleans the dust and colloid on the inner wall of the main pipe body 31 and conveys the cleaned dust and colloid in the direction of the dust collector 4 to prevent the cleaned dust and colloid from adhering to the inner wall of the main pipe body 31 again during the subsequent transportation process, improving the cleaning effect on the inside of the main pipe body 31;

[0045] When the branch pipe body 21 is in an unobstructed state, the wind force passing through it is greater. At this time, the wind pressure drives the clutch component to disengage, disconnecting the wind power driving component from the inner wall cleaning component and no longer driving the inner wall cleaning component to rotate and work, but only driving the cleaning and conveying component in the main pipe body 31 to rotate and work, thereby reducing the working load of the wind power driving component and enabling the wind power driving component to drive the cleaning and conveying component to rotate and work more quickly to improve the cleaning effect of the cleaning and conveying component on the main pipe body 31; among them, the exhaust pipe is composed of the dust removal branch pipe 2 and the dust removal main pipe 3, and the dust removal branch pipe 2 is heated and kept warm through the heating component to prevent fine dust in the tail gas from condensing into large particle colloids in the dust removal branch pipe 2 and then blocking the dust removal branch pipe 2. No heating component is provided in the dust removal main pipe 3, so that the dust can condense into large particle colloids in the dust removal main pipe 3, and then the cleaning and conveying component conveys the large particle colloids into the dust collector 4 for cleaning and conveying. Since the large particle colloids have a greater gravity, when they are conveyed into the dust collector 4, they can directly fall downward under the action of gravity without being filtered and separated by the filter element in the dust collector 4, thereby reducing the working burden of the filter element and improving the filtering efficiency of the dust collector 4.

[0046] Please refer to Figure 1 、 Figure 2 、 Figure 4 As shown in, in one embodiment, the heating component includes an electric heating wire 22, a heat insulating cotton 23 and an outer protection pipe 24. The electric heating wire 22 is wound and installed on the outer wall of the branch pipe body 21, the heat insulating cotton 23 is coated and installed on the surfaces of the branch pipe body 21 and the electric heating wire 22, and the outer protection pipe 24 is sleeved on the surface of the heat insulating cotton 23;

[0047] When the heating component works, the heating wire 22 is energized to generate heat, heating the branch pipe body 21 to increase the temperature inside the branch pipe body 21, preventing the fine dust in the tail gas from condensing into large particle colloids on the inner wall of the branch pipe body 21. The heat insulation cotton 23 is used to insulate the branch pipe body 21 and the heating wire 22 to prevent heat dissipation, thereby improving the heating effect of the heating wire 22 on the branch pipe body 21.

[0048] Please refer to Figure 6 、 Figure 7 As shown in the figure, in one embodiment, the wind power driving component includes a driving shaft 25, a turbine 26, and a support seat 27. The support seat 27 is fixedly installed inside the branch pipe body 21. The driving shaft 25 is rotatably installed on the support seat 27. The turbine 26 is fixedly installed at the upper end of the driving shaft 25. The clutch component includes a spring 28, a clutch wheel 212, and a first spline 214. The clutch wheel 212 is rotatably installed at the bottom end of the driving shaft 25. A plurality of pin shafts 215 distributed in a circular pattern are fixedly installed on the top surface of the clutch wheel 212. The first spline 214 is fixedly installed on the surface of the lower end of the driving shaft 25. A pressure plate 210 is slidably clamped on the lower end of the driving shaft 25 through the first spline 214. A plurality of pin holes 29 corresponding to the pin shafts 215 one by one are formed in the pressure plate 210. The spring 28 is sleeved on the outer circle of the driving shaft 25. One end of the spring 28 abuts against the bottom surface of the support seat 27, and the other end of the spring 28 abuts against the top surface of the pressure plate 210. The inner wall cleaning component includes a plurality of scraping plates 211 and a plurality of connecting rods 213. The plurality of connecting rods 213 are fixedly installed on the outer circle of the clutch wheel 212 along the circular distribution. A scraping plate 211 is fixedly installed at the end of each connecting rod 213. One side of the scraping plate 211 is closely attached to the inner wall of the branch pipe body 21.

[0049] When the plow dryer body 1 discharges exhaust gas through the branch pipe body 21, the turbine 26 rotates under the drive of the exhaust gas flow, and drives the drive shaft 25 and the pressure plate 210 to rotate. At this time, if the branch pipe body 21 is in a smooth state and the air flow passing therethrough is large, the pressure plate 210 moves upward along the drive shaft 25 under the air pressure of the air flow and separates from the clutch wheel 212. At the same time, the spring 28 is squeezed and contracted to generate a reset elastic force. At this time, the drive shaft 25 does not drive the clutch wheel 212, the connecting rod 213 and the scraper 211 to rotate to reduce the workload of the drive shaft 25. When dust gradually adheres to the inside of the branch pipe body 21, the branch pipe body 21 is gradually blocked. When the pressure plate 210 is blocked, the air flow passing therethrough is reduced, so that the air pressure on the pressure plate 210 is gradually reduced. At this time, the pressure plate 210 moves downward along the drive shaft 25 under the restoring elastic force of the spring 28 to reset and gradually close with the clutch wheel 212, so that the pin shaft 215 on the clutch wheel 212 is inserted into the pin hole 29 on the pressure plate 210, and then when the drive shaft 25 and the pressure plate 210 rotate, the clutch wheel 212, the connecting rod 213 and the scraper 211 are driven to rotate synchronously, and the scraper 211 scrapes and cleans the inner wall of the branch pipe body 21 during the rotation process to remove the dust adhered to the inner wall of the branch pipe body 21, so that the inside of the branch pipe body 21 is restored to be unobstructed.

[0050] See also Figures 1-5 As shown, in one embodiment, the cleaning and conveying assembly includes a spiral scraper 32 and a support frame 34, the support frame 34 is fixedly mounted on the inner wall of the main pipe body 31, one end of the support frame 34 extends to the axial center position of the main pipe body 31 and is rotatably mounted with a rotating shaft 33; the spiral scraper 32 is rotatably mounted on the inner wall of the main pipe body 31, and the spiral scraper 32 and the rotating shaft 33 are fixedly connected by a connecting strip 37; the transmission assembly includes a driven bevel gear 35 and a driving bevel gear 36, the driven bevel gear 35 is fixedly mounted on the rotating shaft 33, the driving bevel gear 36 is fixedly mounted on the top of the driving shaft 25, and the driving bevel gear 36 and the driven bevel gear 35 are meshed and driven.

[0051] When the driving shaft 25 rotates, it drives the active bevel gear 36 to rotate synchronously, and then the active bevel gear 36 engages to drive the driven bevel gear 35 to rotate, thereby driving the rotating shaft 33 and the spiral scraper 32 to rotate. When the spiral scraper 32 rotates, it scrapes and cleans the dust and colloid on the inner wall of the main pipe body 31, and transports the cleaned dust and colloid along the main pipe body 31 toward the dust collector 4.

[0052] See also Figure 6 , Figure 7 As shown, in one embodiment, the top of the branch pipe body 21 extends upward to the inside of the main pipe body 31; a scraper ring 310 is rotatably installed on the outer ring of the upper end of the branch pipe body 21, and the scraper ring 310 is connected to the drive shaft 25 through a special-shaped connecting rod 311;

[0053] By extending the pipe mouth of the branch pipe body 21 upward to the interior of the main pipe body 31, dust and colloid in the main pipe body 31 can be prevented from entering the interior of the branch pipe body 21 along the pipe mouth of the branch pipe body 21 during the transportation process; at the same time, when the driving shaft 25 rotates, the scraper ring 310 can be driven to rotate on the surface of the branch pipe body 21 through the special-shaped connecting rod 311, so that the scraper ring 310 scrapes and cleans the joint between the branch pipe body 21 and the main pipe body 31, preventing dust and colloid from adhering to the joint between the branch pipe body 21 and the main pipe body 31.

[0054] See also Figure 6 , Figure 7 As shown, in one embodiment, a second spline 38 is fixedly installed on the surface of the upper end of the driving shaft 25, and a lifting sleeve 39 is slidably installed on the surface of the driving shaft 25 through the second spline 38. One end of the special-shaped connecting rod 311 is fixedly connected to the outer ring of the lifting sleeve 39, and the other end of the special-shaped connecting rod 311 is rotatably connected to the top surface of the scraper ring 310; the inner side surface of the lower end of the special-shaped connecting rod 311 is fixedly installed with a flexible scraper 312 that is closely attached to the outer surface of the branch pipe body 21;

[0055] Since the main pipe body 31 is tilted, the special-shaped connecting rod 311 drives the scraper ring 310 to rotate, and the special-shaped connecting rod 311 will move up and down with the scraper ring 310. The special-shaped connecting rod 311 is slidably connected to the drive shaft 25 through the lifting sleeve 39 and the second spline 38, which facilitates the special-shaped connecting rod 311 to be synchronously lifted and lowered with the scraper ring 310 during the rotation process; at the same time, the special-shaped connecting rod 311 drives the flexible scraper 312 to rotate on the surface of the branch pipe body 21 during the rotation, scraping and cleaning the outer surface of the branch pipe body 21 to prevent dust and colloid from adhering to the outer surface of the branch pipe body 21.

[0056] Specific working principle:

[0057] When the plow dryer body 1 discharges exhaust gas through the branch pipe body 21, the turbine 26 rotates under the drive of the exhaust gas flow, and drives the drive shaft 25 and the pressure plate 210 to rotate. At this time, if the branch pipe body 21 is in a smooth state and the air flow passing therethrough is large, the pressure plate 210 moves upward along the drive shaft 25 under the air pressure of the air flow and separates from the clutch wheel 212. At the same time, the spring 28 is squeezed and contracted to generate a reset elastic force. At this time, the drive shaft 25 does not drive the clutch wheel 212, the connecting rod 213 and the scraper 211 to rotate, so as to reduce the workload of the drive shaft 25.

[0058] When dust gradually adheres to the inside of the branch pipe body 21, causing the branch pipe body 21 to be gradually blocked, the airflow passing through it decreases, causing the air pressure received by the pressure plate 210 to gradually decrease. At this time, under the reset elastic force of the spring 28, the pressure plate 210 moves downward along the drive shaft 25 to reset and gradually closes with the clutch wheel 212, so that the pin shaft 215 on the clutch wheel 212 is inserted into the pin hole 29 on the pressure plate 210. Then, when the drive shaft 25 and the pressure plate 210 rotate, the clutch wheel 212, the connecting rod 213, and the scraper 211 are driven to rotate synchronously. During the rotation of the scraper 211, the inner wall of the branch pipe body 21 is scraped and cleaned to remove the dust adhering to the inner wall of the branch pipe body 21, making the inside of the branch pipe body 21 unobstructed again;

[0059] When the drive shaft 25 rotates, it also drives the driving bevel gear 36 to rotate synchronously. Then, the driving bevel gear 36 meshes with and drives the driven bevel gear 35 to rotate, thereby driving the rotating shaft 33 and the spiral scraping strip 32 to rotate. When the spiral scraping strip 32 rotates, it scrapes and cleans the dust and colloid on the inner wall of the main pipe body 31, and conveys the scraped dust and colloid along the main pipe body 31 towards the dust collector 4.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] The preferred embodiments of the invention disclosed above are only used to help illustrate the invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the invention, so that those skilled in the art can understand and utilize the invention well.

Claims

1. A plow blade dryer with an exhaust gas treatment structure, comprising a plow blade dryer main body, a dust removal branch pipe, a dust removal main pipe and a dust collector, characterized in that: The dust removal branch pipes are provided in plurality, and the plurality of dust removal branch pipes are sequentially arranged and connected and installed at the top of the plow cutter dryer body, the dust removal main pipe is obliquely arranged above the plow cutter dryer body, and the tops of the plurality of dust removal branch pipes are all connected to the bottom of the dust removal main pipe, the dust collector is arranged at one end of the plow cutter dryer body, and the air inlet of the dust collector is connected to the end of the dust removal main pipe obliquely downward; The dust removal branch pipe includes a branch pipe body, a heating component, a wind drive component, a clutch component and an inner wall cleaning component. The branch pipe body is connected and installed between the plow dryer body and the dust removal main pipe. The heating component is wrapped and installed on the outer ring of the branch pipe body to heat and keep the branch pipe body warm. The wind driving assembly is rotatably mounted in the branch pipe body, the inner wall cleaning assembly is rotatably mounted on the inner wall of the branch pipe body, and the inner wall cleaning assembly is transmission-connected to the wind driving assembly via a clutch assembly; When the main body of the coulter dryer discharges exhaust gas through the branch pipe body, the wind pressure during exhaust gas discharge drives the wind drive component to rotate and work, and at the same time, the wind pressure drives the clutch component to disconnect, so that the inner wall cleaning component is disconnected from the wind drive component. At this time, the wind drive component does not drive the inner wall cleaning component to work synchronously; and when the branch pipe body is gradually blocked by dust in the exhaust gas so that the wind pressure in the branch pipe body is reduced, the clutch component is reset and closed, so that the inner wall cleaning component is connected to the wind drive component in transmission. At this time, the wind drive component drives the inner wall cleaning component to rotate synchronously, so that the inner wall cleaning component cleans the inner wall of the branch pipe body; The dust removal main pipe comprises a main pipe body, a transmission assembly and a cleaning and conveying assembly, wherein the cleaning and conveying assembly is rotatably mounted on the inner wall of the main pipe body, and the cleaning and conveying assembly is transmission-connected with the corresponding wind-driven assembly through the transmission assembly, so that when the wind-driven assembly rotates, the cleaning and conveying assembly is driven to rotate synchronously on the inner wall of the main pipe body, so that the cleaning and conveying assembly scrapes and cleans the dust and colloid on the inner wall of the main pipe body, and conveys the cleaned dust and colloid to the direction of the dust collector; The wind-driven assembly includes a drive shaft, a turbine, and a support seat; The clutch assembly includes a spring, a clutch wheel and a No. 1 spline, the clutch wheel is rotatably mounted on the bottom end of the drive shaft, and a plurality of circumferentially distributed pins are fixedly mounted on the top surface of the clutch wheel; The first spline is fixedly mounted on the surface of the lower end of the driving shaft, and the lower end of the driving shaft is slidably mounted with a pressure plate through the first spline, and the pressure plate is provided with a plurality of pin holes corresponding to the pin shafts one by one; The spring is sleeved on the outer ring of the driving shaft, and one end of the spring abuts against the bottom surface of the supporting seat, and the other end of the spring abuts against the top surface of the pressure plate.

2. The plow dryer with a tail gas treatment structure according to claim 1, characterized in that: The heating component includes an electric heating wire, thermal insulation cotton and an outer protective tube. The electric heating wire is wound and installed on the outer wall of the branch pipe body, the thermal insulation cotton is covered and installed on the surface of the branch pipe body and the electric heating wire, and the outer protective tube is sleeved on the surface of the thermal insulation cotton.

3. The plow dryer with a tail gas treatment structure according to claim 1, characterized in that: The support seat is fixedly installed inside the branch pipe body, the drive shaft is rotatably installed on the support seat, and the turbine is fixedly installed on the upper end of the drive shaft.

4. The plow dryer with a tail gas treatment structure according to claim 1, wherein: The inner wall cleaning assembly includes multiple scrapers and multiple connecting rods. The multiple connecting rods are fixedly installed on the outer ring of the clutch wheel along the circumference. The end of each connecting rod is fixedly installed with the scraper, and one side of the scraper is tightly attached to the inner wall of the branch pipe body.

5. The plow knife dryer with an exhaust gas treatment structure according to claim 1, wherein: The cleaning and conveying assembly comprises a spiral scraper and a support frame, wherein the support frame is fixedly mounted on the inner wall of the main pipe body, and one end of the support frame extends to the axis center position of the main pipe body and is rotatably mounted with a rotating shaft; The spiral scraper is rotatably mounted on the inner wall of the main pipe body, and the spiral scraper is fixedly connected to the rotating shaft via a connecting strip.

6. The plow dryer with a tail gas treatment structure according to claim 5, characterized in that: The transmission assembly comprises a driven bevel gear and a driving bevel gear, wherein the driven bevel gear is fixedly mounted on the rotating shaft, and the driving bevel gear is fixedly mounted on the top end of the driving shaft, and the driving bevel gear and the driven bevel gear are meshingly connected.

7. The plow dryer with a tail gas treatment structure according to claim 3, characterized in that: The top end of the branch pipe body extends upward to the interior of the main pipe body; A scraper ring is rotatably mounted on the outer ring of the upper end of the branch pipe body, and the scraper ring is connected to the drive shaft through a special-shaped connecting rod.

8. The plow dryer with an exhaust gas treatment structure according to claim 7, characterized in that: A second spline is fixedly installed on the surface of the upper end of the driving shaft, a lifting sleeve is slidably installed on the surface of the driving shaft through the second spline, one end of the special-shaped connecting rod is fixedly connected to the outer ring of the lifting sleeve, and the other end of the special-shaped connecting rod is rotatably connected to the top surface of the scraper ring; A flexible scraper closely attached to the outer surface of the branch pipe body is fixedly mounted on the inner side surface of the lower end of the special-shaped connecting rod.

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