Preboiled rice drying air duct structure

Abstract

The utility model provides a parboiled rice drying air duct structure, and belongs to the technical field of drying air ducts. Comprising an air duct body, the whole air duct body is in an L shape, an air guide cavity allowing airflow to pass through is formed in the air duct body, a heat exchange cavity is formed in the position, corresponding to the outer edge of the air guide cavity, of the horizontal section of the air duct body, water guide pipes are symmetrically installed at the top of the air duct body, and the water guide pipes are communicated with the interior of the heat exchange cavity; a water pipe is mounted at the water guide pipe; an inserting cavity is formed in the vertical section of the air duct body, an inserting frame is installed at the inserting cavity in an inserting mode, a filtering cavity is formed in the inserting frame, and a filtering net is installed in the filtering cavity. When air flow passes through the inserting frame in the working process, impurities in the air flow can be effectively cleaned through the filter screen on the inserting frame, and the situation that the whole exhaust position is turbid due to the fact that many impurities are exhausted along with the air flow can be avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of drying air ducts, in particular to a parboiled rice drying air duct structure. Background Art

[0002] A parboiled rice dryer is a piece of agricultural machinery designed specifically for processing parboiled rice. Its primary function is to efficiently and quickly dry the parboiled grain, preserving its quality and flavor. These dryers typically utilize advanced hot air circulation technology, which distributes heat quickly and evenly, effectively shortening drying time while preventing overdrying or underdrying of grain. The parboiled rice dryer's rational internal design and spacious drying chamber can accommodate large quantities of grain for drying, significantly improving production efficiency.

[0003] The existing parboiled rice drying duct structure cannot effectively filter and clean the impurities contained in the exhaust air flow when the air flow is discharged. Since the grains need to be turned over during the drying process, the air flow is prone to contain a large amount of impurities generated by drying, causing the entire air to be turbid when it is discharged. Therefore, the present application provides a parboiled rice drying duct structure to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a parboiled rice drying duct structure to solve the problem that the existing parboiled rice drying duct structure cannot effectively filter and clean impurities contained in the discharged air flow when the air flow is discharged. Since the grains need to be turned over during the drying process, it is easy for the air flow to contain a large amount of impurities generated during drying, which causes the overall air to be turbid when discharged.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A parboiled rice drying air duct structure comprises an air duct body, the air duct body being L-shaped as a whole, an air guide cavity for airflow to pass through the air duct body, a heat exchange cavity being provided at a horizontal section of the air duct body corresponding to the outer edge of the air guide cavity, water guide pipes being symmetrically installed at the top of the air duct body, the water guide pipes being in communication with the interior of the heat exchange cavity, and a water pipe being installed on the water guide pipes;

[0007] An inserting cavity is provided on the vertical section of the air duct body, a plug-in frame is plugged and installed at the inserting cavity, a filter cavity is provided on the plug-in frame, and a filter screen is installed in the filter cavity.

[0008] Optionally, a receiving box is installed on the plug-in frame at both ends corresponding to the filter screen, a groove is provided at one end of the receiving box, and a cleaning component for assisting in cleaning the top of the filter screen is installed inside the filter cavity of the plug-in frame corresponding to the top of the filter screen.

[0009] Optionally, the cleaning assembly includes a reciprocating screw that is rotatably arranged in the filter chamber, a cleaning plate is mounted on the reciprocating screw, the bottom of the cleaning plate is attached to the bottom of the filter screen, and a cleaning motor is installed on the plug-in frame to assist the rotation of the reciprocating screw.

[0010] Optionally, the vertical cross-section of the cleaning plate is an isosceles trapezoid, and both ends of the cleaning plate are fitted on the inner side of the filter cavity.

[0011] Optionally, positioning cavities are symmetrically provided on the outer side of the plug-in frame, positioning holes are provided on the plug-in cavities, and positioning components are installed in the positioning cavities to cooperate with the positioning holes for positioning.

[0012] Optionally, the positioning assembly includes a sliding plate slidably arranged in the positioning cavity, a positioning pin is fixed to one end of the sliding plate, the positioning pin extends through the positioning cavity, the positioning pin cooperates with the positioning hole for positioning, and an ejection spring is installed in the positioning cavity to assist the sliding plate in pushing.

[0013] Optionally, limit bars are horizontally protruded at the top and bottom of the positioning cavity, sliding holes for the limit bars to slide are opened on the sliding plate, and a protruding rod is fixed on the outer side of the sliding plate.

[0014] Optionally, a blocking block is protruding from the interior of the heat exchange cavity, and a plurality of blocking blocks are staggeredly arranged inside the heat exchange cavity.

[0015] Optionally, an air guide plate is obliquely installed inside the air guide cavity, and a plurality of the air guide plates are provided. A protruding plate is symmetrically protruded on a section of the air guide plate, and the protruding plate is fixed to the air duct body by bolts.

[0016] Optionally, protruding rings are fixedly mounted on the outer edges of both ends of the air duct body, and mounting holes are symmetrically drilled on the protruding rings.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above solution, by cooperating with the plug-in frame and the filter screen that are laterally plugged into the air duct body, when the air flows through the plug-in frame during operation, the filter screen on the plug-in frame can effectively clean the impurities in the air flow, thereby minimizing the possibility that a large amount of impurities are discharged with the air flow, causing overall turbidity in the exhaust position.

[0019] By cooperating with the cleaning assembly and the receiving box, etc., the cleaning motor is started, the cleaning motor drives the reciprocating screw to rotate as a whole, the reciprocating screw is threadedly engaged with the cleaning plate, and then the cleaning plate as a whole moves laterally. During the lateral movement of the cleaning plate, the impurities on the filter screen are driven to move, and then the impurities on the filter screen are pushed onto the receiving box in sequence, thereby completing the overall cleaning of the impurities accumulated on the top of the filter screen, and can avoid as much impurities as possible from accumulating on the top of the filter screen during operation, causing poor ventilation effect, etc.

[0020] By cooperating between the heat exchange chamber arranged inside the air duct body and the blocking block and the water pipe, the excess heat in the exhaust process can be effectively recovered through the flowing heat exchange fluid during operation, thereby effectively reducing the overall heat consumption and avoiding excessive heat loss as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the parboiled rice drying duct;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the parboiled rice drying duct;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the parboiled rice drying duct;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the parboiled rice drying duct.

[0026] Reference numerals:

[0027] 1. Air duct body; 2. Protruding ring; 3. Air guide cavity; 4. Air guide plate; 41. Protruding plate; 5. Heat exchange cavity; 6. Blocking block; 7. Water guide pipe; 8. Plug-in frame; 9. Filter screen; 10. Socket box; 101. Groove; 11. Positioning assembly; 12. Ejection spring; 13. Sliding plate; 131. Protruding rod; 132. Limiting strip; 14. Positioning pin; 15. Cleaning assembly; 16. Reciprocating screw; 17. Cleaning plate; 18. Cleaning motor.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, devices and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following describes in detail a parboiled rice drying duct structure provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0030] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0033] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0034] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a steamed rice drying air duct structure, including an air duct body 1, which is L-shaped as a whole, and an air guide cavity 3 for air flow to pass through is opened inside the air duct body 1, and protruding rings 2 are fixed on the outer edges of both ends of the air duct body 1, and mounting holes are symmetrically drilled and installed on the protruding rings 2. An insertion cavity is opened in the vertical section of the air duct body 1, and a plug-in frame 8 is plugged and installed at the insertion cavity. A filter cavity is opened on the plug-in frame 8, and a filter screen 9 is installed in the filter cavity.

[0035] By cooperating with the plug-in frame 8 and the filter screen 9 that are laterally plugged in inside the air duct body 1, when the airflow passes through the plug-in frame 8 during operation, the impurities in the airflow can be effectively cleaned through the filter screen 9 thereon, which can avoid as much impurities as possible from being discharged with the airflow, causing the overall turbidity of the exhaust position.

[0036] The above-mentioned plug-in frame 8 is plugged with a socket box 10 at both ends of the corresponding filter screen 9, and a groove 101 is provided at one end of the socket box 10. A cleaning component 15 for assisting in cleaning the top of the filter screen 9 is installed at the top of the filter screen 9 inside the filter cavity of the plug-in frame 8. The cleaning component 15 includes a reciprocating screw rod 16 rotatably arranged in the filter cavity, and a cleaning plate 17 is sleeved on the reciprocating screw rod 16. The vertical section of the cleaning plate 17 is an isosceles trapezoid, and both ends of the cleaning plate 17 are attached to the inner side edge of the filter cavity, and the bottom of the cleaning plate 17 is attached to the bottom of the filter screen 9. A cleaning motor 18 for assisting the rotation of the reciprocating screw rod 16 is installed on the plug-in frame 8.

[0037] Through the cooperation between the cleaning component 15 and the receiving box 10, the cleaning motor 18 is started, and the cleaning motor 18 drives the reciprocating screw 16 to rotate as a whole. The reciprocating screw 16 is threadedly engaged with the cleaning plate 17, so that the cleaning plate 17 moves laterally as a whole. During the lateral movement of the cleaning plate 17, the impurities on the filter screen 9 are driven to move, and the impurities on the filter screen 9 are pushed onto the receiving box 10 in turn, thereby completing the overall cleaning of the impurities accumulated on the top of the filter screen 9. During operation, it can avoid as much impurities as possible from accumulating on the top of the filter screen 9, causing poor ventilation effect, etc.

[0038] A positioning cavity is symmetrically provided on the outer side of the plug-in frame 8, a positioning hole is provided on the plug-in cavity, and a positioning component 11 is installed in the positioning cavity for cooperating with the positioning hole for positioning. The positioning component 11 includes a sliding plate 13 slidably arranged in the positioning cavity, and a positioning pin 14 is fixed at one end of the sliding plate 13. The positioning pin 14 extends through the positioning cavity, and the positioning pin 14 cooperates with the positioning hole for positioning. An ejection spring 12 is installed in the positioning cavity to assist the sliding plate 13 in pushing. Limiting strips 132 are horizontally protruded at the top and bottom of the positioning cavity. A sliding hole for the limiting strip 132 to slide is provided on the sliding plate 13, and a protruding rod 131 is fixed on the outer side of the sliding plate 13.

[0039] By setting the positioning assembly 11, the protruding rod 131 is pressed to push the protruding rod 131 outward, and the protruding rod 131 pushes the sliding plate 13 to move as a whole. During the movement of the sliding plate 13, the positioning pin 14 is driven to withdraw from the positioning hole, which can ensure that the plug-in frame 8 can be fixed at the corresponding position during work.

[0040] like Figure 1 、 Figure 3 and Figure 4 As shown, a heat exchange chamber 5 is provided at the outer edge of the air guide chamber 3 in a horizontal section of the air duct body 1, and a water pipe 7 is symmetrically installed at the top of the air duct body 1. The water pipe 7 is connected to the inside of the heat exchange chamber 5, and a water pipe is installed at the water pipe 7. A blocking block 6 is protruding from the inside of the heat exchange chamber 5, and several blocking blocks 6 are staggered inside the heat exchange chamber 5.

[0041] By cooperating between the heat exchange chamber 5 arranged inside the air duct body 1 and the blocking block 6 and the water conduit 7, the excess heat in the exhaust process can be effectively recovered through the flowing heat exchange fluid during operation, thereby effectively reducing the overall heat consumption and avoiding excessive heat loss as much as possible. By staggering a number of blocking blocks 6, the heat exchange fluid can be evenly mixed when it flows, avoiding the situation where some heat exchange fluids are unevenly heated and cooled.

[0042] An air guide plate 4 is obliquely installed inside the air guide cavity 3 . There are several air guide plates 4 . A section of the air guide plate 4 is symmetrically protruded with a protruding plate 41 . The protruding plate 41 is fixed to the air duct body 1 by bolts.

[0043] By providing the air guide plate 4, it can be ensured that the airflow can stay in the air guide cavity 3 for a longer time during operation, thereby ensuring better heat exchange with the heat exchange fluid.

[0044] The working principle of the technical solution provided by this utility model is as follows:

[0045] When the air duct body 1 needs to be installed, align the protruding ring 2 with the air outlet of the drying channel, and fix the air duct body 1 at the corresponding position with bolts, and install the hot water exchange pipe on the water guide pipe 7. When the air is discharged, the air flow flows through the air guide cavity 3 in turn, and the air flow is allowed to stay in the air guide cavity 3 for a longer time through the air guide plate 4. At the same time, the hot water exchange pipe injects the heat exchange liquid into the heat exchange cavity 5, and the flowing heat exchange liquid can effectively exchange the heat in the drying gas.

[0046] When the airflow passes through the plug-in frame 8, the impurities in the airflow are effectively cleaned through the filter 9 thereon, and the cleaning motor 18 is started at the same time. The cleaning motor 18 drives the reciprocating screw 16 to rotate as a whole, and the reciprocating screw 16 is threadedly engaged with the cleaning plate 17, so that the cleaning plate 17 moves horizontally as a whole. In the process of the horizontal movement of the cleaning plate 17, the impurities on the filter 9 are driven to move, and then the impurities on the filter 9 are pushed onto the receiving box 10 in turn, thereby completing the overall cleaning of the impurities accumulated on the top of the filter 9.

[0047] When it is necessary to clean impurities on the receiving box 10, press the protruding rod 131 to push the protruding rod 131 outward, and the protruding rod 131 pushes the sliding plate 13 to move as a whole. During the movement of the sliding plate 13, the positioning pin 14 is driven to withdraw from the positioning hole. At this time, the plug-in frame 8 is pulled out as a whole to achieve the overall cleaning of the receiving box 10.

[0048] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A parboiled rice drying duct structure, characterized in that: The air duct body comprises an L-shaped air duct body, an air guide cavity for air flow to pass through the air duct body, a heat exchange cavity is provided at a horizontal section of the air duct body corresponding to the outer edge of the air guide cavity, and water pipes are symmetrically installed at the top of the air duct body, the water pipes are connected to the interior of the heat exchange cavity, and a water pipe is installed on the water pipes; An inserting cavity is provided on the vertical section of the air duct body, a plug-in frame is plugged and installed at the inserting cavity, a filter cavity is provided on the plug-in frame, and a filter screen is installed in the filter cavity.

2. The parboiled rice drying air duct structure according to claim 1, characterized in that: A receiving box is installed on the plug-in frame at both ends corresponding to the filter screen, and a groove is provided at one end of the receiving box. A cleaning component for assisting in cleaning the top of the filter screen is installed inside the filter cavity of the plug-in frame corresponding to the top of the filter screen.

3. The parboiled rice drying air duct structure according to claim 2, characterized in that: The cleaning assembly includes a reciprocating screw rod rotatably arranged in the filter cavity, a cleaning plate is mounted on the reciprocating screw rod, the bottom of the cleaning plate is attached to the bottom of the filter screen, and a cleaning motor is installed on the plug-in frame to assist the rotation of the reciprocating screw rod.

4. The parboiled rice drying air duct structure according to claim 3, characterized in that: The vertical cross section of the cleaning plate is an isosceles trapezoid, and both ends of the cleaning plate are fitted on the inner side of the filter cavity.

5. The parboiled rice drying air duct structure according to claim 1, characterized in that: A positioning cavity is symmetrically provided on the outer side of the plug-in frame, a positioning hole is provided on the plug-in cavity, and a positioning component is installed in the positioning cavity to cooperate with the positioning hole for positioning.

6. The parboiled rice drying air duct structure according to claim 5, characterized in that: The positioning assembly includes a sliding plate slidably arranged in the positioning cavity, a positioning pin is fixed to one end of the sliding plate, the positioning pin extends through the positioning cavity, the positioning pin cooperates with the positioning hole for positioning, and an ejection spring is installed in the positioning cavity to assist the sliding plate in pushing.

7. The parboiled rice drying air duct structure according to claim 6, characterized in that: Limiting bars are horizontally protruded from the top and bottom of the positioning cavity, sliding holes for the limiting bars to slide are opened on the sliding plate, and a protruding rod is fixed on the outer side of the sliding plate.

8. The parboiled rice drying air duct structure according to claim 1, characterized in that: A blocking block is protruding from the interior of the heat exchange cavity, and a plurality of blocking blocks are staggeredly arranged inside the heat exchange cavity.

9. The parboiled rice drying air duct structure according to claim 1, characterized in that: An air guide plate is obliquely installed inside the air guide cavity. There are a plurality of air guide plates. A protruding plate is symmetrically protruded on one section of the air guide plate. The protruding plate is fixed to the air duct body by bolts.

10. The parboiled rice drying air duct structure according to claim 1, characterized in that: The outer edges of both ends of the air duct body are sleeved and fixed with protruding rings, and the protruding rings are symmetrically drilled with mounting holes.

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