Charging tray frame rail fixing mobile dryer based on side ventilation structure
阅读说明：本技术 一种基于侧通风结构的料盘架定轨移动干燥机 (Charging tray frame rail fixing mobile dryer based on side ventilation structure ) 是由 谢焕雄 颜建春 吴惠昌 魏海 纪龙龙 张会娟 王建楠 刘敏基 高学梅 游兆延 于 2020-07-13 设计创作，主要内容包括：本发明涉及农产品干燥技术领域的一种基于侧通风结构的料盘架定轨移动干燥机,其设置的风机室、入风室、干燥室、回风室按照循环气流的顺序连通,在入风室与干燥室之间设置进风侧冲孔板,在干燥室与回风室之间设置出风侧冲孔板,进风侧冲孔板的水平方向上均布有若干打开角度可自动调节的导风板,以使干燥气流能够在水平方向上达到相对均匀的状态,由于风机室的竖直剖面结构为矩形结构,所有风机沿风机室高度方向等间距排列为一竖直列,使干燥气流能够在竖直方向上保持相对均匀的状态。采用轴流风机组竖列通风、多级导风板组合的分风匀风、料盘架沿导轨移动等方案解决竖直方向和水平方向上的通风、干燥不均匀问题。(The invention relates to a fixed-track mobile drier of a material tray frame based on a side ventilation structure, which belongs to the technical field of agricultural product drying. The problems of uneven ventilation and drying in the vertical direction and the horizontal direction are solved by adopting the schemes of vertical ventilation of an axial flow fan set, air distribution and air homogenization of a multi-stage air deflector combination, movement of a material tray frame along a guide rail and the like.)
1. The utility model provides a charging tray frame fixed rail removes desiccator based on side ventilation structure, includes the main storehouse body (1) of closed structure, be equipped with the wind channel in the main storehouse body (1) be equipped with the fan subassembly in the wind channel, still be equipped with heating device (3) that correspond fan subassembly air-out side position, its characterized in that:
an air channel in the main bin body (1) is a circulating air channel structure for guiding dry air flow to perform horizontal circulating motion, the circulating air channel structure comprises a fan chamber (101), an air inlet chamber (102), a drying chamber (104) and an air return chamber (106), the fan chamber (101), the air inlet chamber (102), the drying chamber (104) and the air return chamber (106) are communicated and arranged according to the sequence of the circulating air flow, a vertical air inlet side punching plate (103) with a plurality of air holes uniformly distributed is arranged between the air inlet chamber (102) and the drying chamber (104), and a vertical air outlet side punching plate (105) with a plurality of air holes uniformly distributed is arranged between the drying chamber (104) and the air return chamber (106);
the drying chamber (104), the air inlet chamber (102) and the air return chamber (106) are all of cuboid structures, the long sides of the air inlet chamber (102) and the air return chamber (106) are parallel to the long side of the drying chamber (104) with the aerial view as a standard, and the fan chamber (101) extends in the length direction parallel to the short side of the drying chamber (104);
the vertical section structures of the fan room (101), the air inlet room (102) and the air return room (106) are rectangular structures, the long sides of the fan room are vertically arranged, the fan assembly is an axial flow fan set (2) consisting of a plurality of fans (2a), all the fans (2a) are arranged in a vertical straight line at equal intervals along the height direction of the fan room (101), and the arrangement range of the axial flow fan set (2) covers the vertical section of the whole fan room (101);
a plurality of air deflectors (7) which are rotatably adjusted and have a door-shaped structure are uniformly distributed on the air inlet side punching plate (103) in the horizontal direction, each air deflector (7) is provided with an opening control assembly for controlling the opening angle of the air deflector, the rotation adjusting axis of each air deflector (7) is vertically arranged and is positioned on one side of each air deflector (7), the other side of each air deflector (7) faces to dry air flow, and the opening angle of each air deflector (7) is sequentially increased along the long side direction of the air inlet chamber (102) by taking a bird's eye view as a reference;
a guide rail (10) is fixedly arranged in the drying chamber (104), the guide rail (10) is in a horizontally arranged runway shape, and the straight edge part of the guide rail (10) is parallel to the long edge side of the air inlet chamber (102) by taking a overlooking view as a standard;
the drying device is characterized in that a chain (12) is movably arranged on the guide rail (10), the chain (12) is set to be in a track shape matched with the guide rail (10), a plurality of material tray frames (15) which are arranged at equal intervals along the length direction of the chain (12) and are positioned below the guide rail (10) are hung on the chain (12), the material tray frames (15) vertically extend and are provided with a plurality of material bearing laminated plates at equal intervals from top to bottom, and a chain driving mechanism (11) driving the chain (12) to move along the length direction of the guide rail (10) is arranged in the drying chamber (104).
2. The tray rack rail-fixed mobile dryer based on the side ventilation structure as claimed in claim 1, wherein an air valve combination is arranged in the main bin body (1), and the air valve combination comprises:
the first air valve (4) is opened when rapid moisture removal is needed and is arranged at the position, facing the air inlet side of the axial flow fan set (2), of the side wall of the main bin body (1);
the second air valve (5) is opened during working and is arranged at the air outlet position of the air return chamber (106);
and a third air valve (6) which is opened in work and is used for moisture discharge is arranged on the top wall of the main cabin body (1) and is opposite to the drying chamber (104).
3. The tray rack rail-fixed mobile dryer based on the side ventilation structure is characterized in that the opening degree control assembly comprises an electric push rod (8) and a pull wire sensor (9) used for detecting the opening angle of the air deflector (7), the telescopic rod of the electric push rod (8) is hinged with the air deflector (7), the cylinder part of the electric push rod (8) is hinged on the fixed base in the main bin body (1), the pull wire sensor (9) is fixedly arranged, and the pull wire part of the pull wire sensor is connected with the air deflector (7).
4. A tray rack rail-fixed mobile dryer based on a side ventilation structure as claimed in claim 1, wherein a plurality of groups of hooks (13) extending downwards are connected to the lower side of the chain (12), each group of hooks (13) corresponds to one tray rack (15), two hooks (13) are arranged at intervals in each group, and two hanging ropes (14) hung on the two hooks (13) in the corresponding group are connected to the top of each tray rack (15); the material tray frame (15) is of a cuboid frame structure, and when the material tray frame (15) moves to the straight edge part of the guide rail (10), two opposite side faces of the material tray frame (15) are parallel to and close to the air inlet side punching plate (103).
5. The tray rack rail-fixing mobile dryer based on the side ventilation structure is characterized in that the chain (12) comprises a plurality of pairs of chain plates (121), a connecting block (123) is rotatably connected between any two adjacent pairs of chain plates (121), the guide rail (10) is in a hollow tube structure, and the chain (12) is movably arranged in an inner cavity of the guide rail (10);
the bottom of the guide rail (10) is of an open structure, and by taking the cross-sectional view angle of the guide rail (10) as a reference, two sides of the bottom opening of the guide rail (10) are respectively provided with a support flange (10a) which horizontally extends inwards, two sides of each connecting block (123) of the chain (12) are respectively and rotatably connected with a bearing (124), and the bearings (124) on two sides of each connecting block (123) respectively roll on the upper surfaces of the two support flanges (10 a);
a pin shaft (122) which is vertically arranged penetrates through the middle part of each pair of chain plates (121), and the pin shaft (122) downwards penetrates through the chain plates (121) and makes part of the pin shaft protrude below the guide rail (10);
the chain driving mechanism (11) comprises a thumb wheel (118) with a wheel-shaped structure and a rotary driving assembly which drives the thumb wheel (118) to rotate and is arranged on the fixed base of the main bin body (1), the central axis of the thumb wheel (118) is vertically arranged, the thumb wheel (118) is rotatably arranged on the fixed base of the main bin body (1) and driven by the rotary driving assembly to rotate, a plurality of convex protrusions (118a) are uniformly distributed along the outer peripheral side of the thumb wheel (118), an engaging groove (118b) with an outward opening is formed in the outer side of each protrusion (118a), the part of the pin shaft (122) protruding below the guide rail (10) is movably inserted into any engaging groove (118b), and during transmission, any engaging groove (118b) of the thumb wheel (118) is in transmission fit with any pin shaft (122) of the chain (12).
6. The tray rack orbit determination mobile dryer based on the side ventilation structure is characterized in that the rotary driving component for driving the dial wheel (118) to rotate comprises a motor (111), a speed reducer (112), a driving bevel gear (113), a driven bevel gear (114), a first belt pulley (115), a belt (116) and a second belt pulley (117) which are sequentially driven, and the second belt pulley (117) is coaxially linked with the dial wheel (118).
7. The tray rack rail-fixed mobile dryer based on the side ventilation structure is characterized in that the heating device (3) comprises a heat pump outer unit (301) arranged outside the main bin body (1), a condenser (302) in the fan chamber (101) and used for releasing heat into the fan chamber (101) is arranged at the heat energy output side of the heat pump outer unit (301), and the condenser (302) is opposite to and close to the air outlet side of the axial flow fan set (2).
8. The tray rack rail-fixed mobile dryer based on the side ventilation structure is characterized in that the heating device (3) further comprises an electric auxiliary heater (303) for heating the drying air flow, the electric auxiliary heater (303) is installed in the fan chamber (101), and the condenser (302) and the electric auxiliary heater (303) are sequentially arranged at intervals along the moving direction of the drying air flow.
9. The tray rack rail-fixed mobile dryer based on the side ventilation structure is characterized in that the rotary driving component for driving the thumb wheel (118) to rotate further comprises a tension wheel (119) rotatably arranged on the fixed base of the main bin body (1), and the tension wheel (119) is used for tensioning the belt (116).
10. The tray rack rail-fixed mobile dryer based on the side ventilation structure as claimed in any one of claims 1-9, wherein an online moisture content detection unit (16) for detecting moisture content of the dried material is arranged in the drying chamber (104).
Technical Field
The invention relates to the technical field of agricultural product drying, in particular to a drying machine.
Background
The drying uniformity is always a technical problem in the field of agricultural product drying, and particularly, due to the fact that the drying room type hot air drying equipment is not uniform in ventilation and heating, the problem of non-uniform drying in two dimensions such as the vertical direction and the horizontal direction of a drying room exists.
Disclosure of Invention
The invention aims to provide a tray frame rail-fixed mobile dryer based on a side ventilation structure, which aims to solve the problem of uneven drying in the vertical direction and the horizontal direction in the prior art.
The purpose of the invention is realized as follows: a tray frame rail-fixed mobile dryer based on a side ventilation structure comprises a main bin body with a closed structure, wherein an air duct is arranged in the main bin body, a fan assembly is arranged in the air duct, and a heating device corresponding to the position of the air outlet side of the fan assembly is further arranged;
the air duct in the main bin body is a circulating air duct structure for guiding drying air flow to perform horizontal circulating motion, the circulating air duct structure comprises a fan chamber, an air inlet chamber, a drying chamber and an air return chamber, the fan chamber, the air inlet chamber, the drying chamber and the air return chamber are communicated and arranged according to the sequence of the circulating air flow, a vertical air inlet side punching plate with a plurality of air holes uniformly distributed is arranged between the air inlet chamber and the drying chamber, and a vertical air outlet side punching plate with a plurality of air holes uniformly distributed is arranged between the drying chamber and the air return chamber;
the drying chamber, the air inlet chamber and the air return chamber are all of cuboid structures, the long sides of the air inlet chamber and the air return chamber are parallel to the long side of the drying chamber with the view angle overlooked as the standard, and the fan chamber extends in the length direction parallel to the short side of the drying chamber;
the vertical section structures of the fan chamber, the air inlet chamber and the air return chamber are rectangular structures, the long sides of the fan chamber, the air inlet chamber and the air return chamber are vertically arranged, the fan assembly is an axial flow fan set consisting of a plurality of fans, all the fans are arranged in a vertical line at equal intervals along the height direction of the fan chamber, and the arrangement range of the axial flow fan set covers the vertical section of the whole fan chamber;
a plurality of air deflectors which are rotatably adjusted and have a door-shaped structure are uniformly distributed on the air inlet side punching plate in the horizontal direction, each air deflector is provided with an opening control assembly for controlling the opening angle of the air deflector, the rotation adjusting axis of the air deflector is vertically arranged and is positioned on one side of the air deflector, the other side of the air deflector faces to dry air, and the opening angle of the air deflector is sequentially increased along the long side direction of the air inlet chamber by taking a overlooking visual angle as a reference;
a guide rail is fixedly arranged in the drying chamber, the guide rail is in a horizontally arranged runway shape, and the straight edge part of the guide rail is parallel to the long side of the air inlet chamber by taking the overlooking visual angle as a standard;
the drying chamber is internally provided with a chain driving mechanism driving the chain to move along the length direction of the guide rail.
Further, be equipped with the blast gate combination in the main storehouse body, the blast gate combination includes:
the first air valve is opened when rapid moisture removal is needed and is arranged at the position, facing the air inlet side of the axial flow fan unit, of the side wall of the main bin body;
the second air valve is opened during working and is arranged at the air outlet of the air return chamber;
and the third air valve which is opened during working and is used for moisture removal is arranged on the top wall of the main cabin body and is right opposite to the drying chamber.
Furthermore, the opening control assembly comprises an electric push rod and a stay wire sensor for detecting the opening angle of the air deflector, a telescopic rod of the electric push rod is hinged with the air deflector, a cylinder barrel part of the electric push rod is hinged on a fixed base in the main bin body, and the stay wire sensor is fixedly arranged and a stay rope part of the stay wire sensor is connected with the air deflector.
Furthermore, the lower side of the chain is connected with a plurality of groups of hooks extending downwards, each group of hooks corresponds to one tray frame, two hooks are arranged at intervals in each group, and the top of each tray frame is connected with two hanging ropes respectively hung on the two hooks in the corresponding group; the material tray frame is of a cuboid frame structure, and when the material tray frame moves to the straight edge part of the guide rail, two opposite side faces of the material tray frame are parallel to and close to the air inlet side punching plate.
Furthermore, the chain comprises a plurality of pairs of chain plates, a connecting block is rotatably connected between any two adjacent pairs of chain plates, the guide rail is of a hollow pipe structure, and the chain is movably arranged in the inner cavity of the guide rail;
the bottom of the guide rail is of an open structure, two sides of an opening in the bottom of the guide rail are respectively provided with a supporting flange extending inwards and horizontally, two sides of each connecting block of the chain are rotatably connected with bearings, and the bearings on two sides of each connecting block roll on the upper surfaces of the two supporting flanges respectively;
a pin shaft which is vertically arranged penetrates through the middle part of each pair of chain plates, and the pin shaft penetrates through the chain plates downwards and makes part of the pin shaft protrude below the guide rail;
the chain driving mechanism comprises a shifting wheel with a wheel-shaped structure and a rotary driving assembly driving the shifting wheel to rotate and arranged on the fixed base of the main bin body, the central axis of the shifting wheel is vertically arranged, the shifting wheel is rotatably arranged on the fixed base of the main bin body and driven by the rotary driving assembly to rotate, a plurality of convex protrusions are uniformly distributed along the peripheral side of the shifting wheel, an engaging groove with an outward opening is formed in the outer side of each protrusion, the part of the pin shaft protruding below the guide rail is movably inserted into any engaging groove, and when the chain driving mechanism is used for driving, any engaging groove of the shifting wheel is in transmission fit with any pin shaft of the chain.
Further, the rotary driving component for driving the shifting wheel to rotate comprises a motor, a speed reducer, a driving bevel gear, a driven bevel gear, a first belt pulley, a belt and a second belt pulley which are sequentially driven, wherein the second belt pulley and the shifting wheel are coaxially arranged in a linkage manner.
Furthermore, the heating device comprises a heat pump outer unit arranged outside the main bin body, a condenser which is arranged in the fan chamber and used for releasing heat into the fan chamber is arranged on the heat energy output side of the heat pump outer unit, and the condenser is opposite to and close to the air outlet side of the axial flow fan unit.
Further, the heating device further comprises an electric auxiliary heater for heating the drying airflow, the electric auxiliary heater is installed in the fan chamber, and the condenser and the electric auxiliary heater are sequentially arranged at intervals along the movement direction of the drying airflow.
Further, the rotary driving component for driving the thumb wheel to rotate further comprises a tension wheel which is rotatably arranged on the fixed base of the main bin body, and the tension wheel is used for tensioning the belt.
Furthermore, a moisture content online detection unit for detecting the moisture content of the dried material is arranged in the drying chamber.
The invention has the beneficial effects that:
1. the problem of uneven drying in the vertical direction and the horizontal direction in the prior art can be solved simultaneously, and the drying machine can enable drying air flow to be uniformly distributed in the vertical direction and the horizontal direction due to the integral structure arrangement;
2. the vertical section structure of the fan chamber is a rectangular structure, the long sides of the fan chamber are vertically arranged, all fans are arranged in a vertical line at equal intervals along the height direction of the fan chamber, the arrangement range of the axial flow fan set covers the vertical section of the whole fan chamber, so that the axial flow fan set can output dry air flow which is uniformly distributed in the vertical direction, and the output dry air flow can keep the air flow in a relatively uniform state in the vertical direction;
3. the invention adopts the pull wire sensor to detect the opening angle of the air deflectors, can feed back the opening angle of the air deflectors to an electric control system in time and can regulate and control the opening angle of the air deflectors more accurately by considering that the flow of the dry air flow is gradually reduced along the horizontal length direction of the air inlet chamber;
4. the shape of the guide rail is beneficial to the tray rack to uniformly receive the drying airflow in the horizontal direction, the guide rail is in a horizontal runway shape, and the guide rail and the air inlet side punching plate are parallel to each other in the length direction, so that the tray rack can be uniformly subjected to the drying action of the drying airflow in the horizontal direction;
5. the material tray frame is of a cuboid frame structure, when the material tray frame moves to the straight edge part of the guide rail, two opposite side surfaces of the material tray frame are parallel and close to the air inlet side punching plate, so that dry airflow can be quickly acted on materials on the material tray frame, and the material tray frame can ensure that the materials on the material tray frame can be uniformly dried in the vertical direction by considering that the material tray frame vertically extends and a plurality of material bearing laminated plates are arranged at equal intervals from top to bottom;
6. the transmission mode of the chain is favorable for the conveying motion of the tray racks, the tray racks can move at a relatively constant speed along the guide rail to fully guarantee the time of drying action, and each tray rack can be guaranteed to be under the same drying action, specifically, the motor outputs power, the shifting wheel rotates through a series of transmission, the meshing grooves uniformly distributed on the periphery of the shifting wheel are in transmission fit with any one pin shaft to drive the whole chain to move along the guide rail, so that the tray racks are driven to move along the guide rail and switch drying positions, all the tray racks can better receive the drying action of drying air flow, the drying quality of materials is guaranteed, and the meshing grooves are uniformly distributed along the periphery of the shifting wheel, so that the meshing grooves are meshed with the pin shafts, the separation time ranges are in equal periodic states, and the motion of the chain can be maintained at a relatively constant speed, finally, the time interval of the switching positions of the material tray frames is always in the equal state, so that the drying efficiency and the uniformity are accelerated on the basis of ensuring the drying quality, and the materials on each material tray frame can be uniformly dried.
Drawings
Fig. 1 is a layout diagram based on an overhead view.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of the moving principle of the tray rack.
Fig. 4 is a perspective view of the guide rail.
Fig. 5 is a schematic view of the overhead direction of the guide rail.
Fig. 6 is a rear view of fig. 5.
Fig. 7 is a schematic view of the chain drive mechanism.
Fig. 8 is an enlarged view of a portion B in fig. 4.
Fig. 9 is an enlarged view of a portion C in fig. 6.
Fig. 10 is a schematic layout of all fans of the axial flow fan unit based on a vertical sectional view.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-10 and the specific embodiments.
As shown in figure 1, a charging tray frame rail-fixed mobile dryer based on side ventilation structure, including the main storehouse body 1 of closed structure, having the heat preservation, be equipped with the wind channel in the main storehouse body 1, be equipped with the fan subassembly in the wind channel, still be equipped with the heating device 3 that corresponds fan subassembly air-out side position.
The air duct in the main bin body 1 is a circulating air duct structure for guiding the drying air flow to perform horizontal circulating motion, the circulating air duct structure comprises a fan chamber 101, an air inlet chamber 102, a drying chamber 104 and an air return chamber 106, the fan chamber 101, the air inlet chamber 102, the drying chamber 104 and the air return chamber 106 are communicated and arranged according to the sequence of the circulating air flow, a vertical air inlet side punching plate 103 with a plurality of air holes uniformly distributed is arranged between the air inlet chamber 102 and the drying chamber 104, and a vertical air outlet side punching plate 105 with a plurality of air holes uniformly distributed is arranged between the drying chamber 104 and the air return chamber 106.
The heating device 3 comprises a heat pump outer unit 301 arranged outside the main bin body 1, a condenser 302 which is arranged in the fan chamber 101 and used for releasing heat into the fan chamber 101 is arranged at the heat energy output side of the heat pump outer unit 301, and the condenser 302 is opposite to and close to the air outlet side of the axial flow fan set 2; the heating device 3 further comprises an electric auxiliary heater 303 for heating the drying air flow, the electric auxiliary heater 303 is installed in the fan chamber 101, and the condenser 302 and the electric auxiliary heater 303 are sequentially arranged at intervals along the movement direction of the drying air flow.
The drying chamber 104, the air inlet chamber 102 and the air return chamber 106 are all of rectangular parallelepiped structures, the long sides of the air inlet chamber 102 and the air return chamber 106 are parallel to the long side of the drying chamber 104 with respect to the overhead view, and the fan chamber 101 extends in the length direction parallel to the short side of the drying chamber 104; the vertical section structures of the fan room 101, the air inlet room 102 and the air return room 106 are rectangular structures, the long sides of the fan room are vertically arranged, the fan assembly is an axial flow fan set 2 formed by a plurality of
As shown in fig. 1 and 2, a plurality of wind deflectors 7 with a rotatable and adjustable door-shaped structure are uniformly distributed on the air inlet side punching plate 103 in the horizontal direction, each wind deflector 7 is provided with an opening control component for controlling the opening angle of the wind deflector 7, the rotation adjustment axis of the wind deflector 7 is vertically arranged and is positioned on one side of the wind deflector 7, the other side of the wind deflector 7 faces the dry air flow, and the opening angle of the wind deflector 7 increases along the long side direction of the air inlet chamber 102 with the overlooking angle as the standard; the opening control assembly comprises an electric push rod 8 and a stay wire sensor 9 for detecting the opening angle of the air deflector 7, a telescopic rod of the electric push rod 8 is hinged with the air deflector 7, a cylinder barrel part of the electric push rod 8 is hinged on the fixed basis in the main bin body 1, and the stay wire sensor 9 is fixedly arranged and a stay rope part of the stay wire sensor is connected with the air deflector 7.
As shown in fig. 1, 3, 4, 5, and 6, the drying chamber 104 is fixedly provided with a guide rail 10, and the guide rail 10 is formed in a horizontally arranged racetrack shape, such that a straight edge portion of the guide rail 10 is parallel to a long side of the intake chamber 102 in a bird's eye view.
The guide rail 10 is movably provided with a chain 12, the chain 12 is in a track shape matched with the guide rail 10, the chain 12 is hung with a plurality of material tray frames 15 which are arranged along the length direction at equal intervals and are positioned below the guide rail 10, the material tray frames 15 vertically extend and are provided with a plurality of material bearing laminates at equal intervals from top to bottom, and a
As shown in fig. 3 and 4, a plurality of groups of hooks 13 extending downwards are connected to the lower side of the chain 12, each group of hooks 13 corresponds to one material tray frame 15, two hooks 13 are arranged at intervals in each group, and two hanging ropes 14 hung on the two hooks 13 of the corresponding group are connected to the top of each material tray frame 15; as shown in fig. 3, the tray rack 15 is provided in a rectangular parallelepiped frame structure, and when moving to the straight edge portion of the guide rail 10, two opposite side surfaces of the tray rack 15 are parallel and close to the air inlet side punching plate 103. Can be so that dry air current can be used rapidly to the material on the charging tray frame 15 for drying efficiency, consider that charging tray frame 15 is vertical to be extended and from the top down the equidistant a plurality of plywoods that bear the weight of the material of laying, can ensure that the material on the charging tray frame 15 can obtain even drying action in vertical direction.
As shown in fig. 4 and 8, the chain 12 includes a plurality of pairs of link plates 121, a connecting block 123 is rotatably connected between any two adjacent pairs of link plates 121, as shown in fig. 4, any one of the hooks 13 is suspended and connected to the lower side of one of the connecting blocks 123, the guide rail 10 is configured as a hollow pipe structure, and the chain 12 is movably disposed in the inner cavity of the guide rail 10.
As shown in fig. 8, the bottom of the guide rail 10 is provided with an opening structure, and two sides of the opening of the bottom of the guide rail 10 are provided with support flanges 10a extending horizontally inwards, based on the sectional view of the guide rail 10, two sides of each connecting block 123 of the chain 12 are rotatably connected with bearings 124, and the bearings 124 on two sides of each connecting block 123 roll on the upper surfaces of the two support flanges 10a, respectively, so as to reduce the resistance encountered by the whole chain 12 when moving in the inner cavity of the guide rail 10.
The drying principle of this example is as follows:
during the drying operation, the material is placed in the material tray frame 15, the material tray frame 15 is hung on the hook 13, the
The purpose of this embodiment is to drive the drying air flow to be evenly distributed both in the vertical direction and in the horizontal direction.
In order to enable a uniform distribution of the drying air flow in the vertical direction, the principle is set as follows: as shown in fig. 1 and 10, since the vertical cross-sectional structure of the fan chamber 101 is a rectangular structure and the long sides thereof are vertically arranged, all the
In order to enable a uniform distribution of the drying air flow in the horizontal direction, the principle is set as follows: as shown in fig. 1 and 2, the opening angle of the air deflectors 7 can be flexibly adjusted and controlled according to the distribution of the air flow on the air inlet side punching plate 103, so that the flow of the drying air flow entering the drying chamber 104 is kept in a relatively uniform state in the horizontal direction, and considering that the flow of the drying air flow is gradually reduced along the horizontal length direction of the air inlet chamber 102, the opening angle of the air deflectors 7 is sequentially increased progressively, so that the air volume passing through all the air deflectors 7 in a relatively balanced state in unit time is kept relatively balanced, and importantly, the opening angle of each air deflector 7 can be detected. In the embodiment, the opening angle of the air deflector 7 is calculated according to a cosine function, and the opening angle of each air deflector 7 is automatically adjusted according to the ventilation volume or the wind speed entering the wind chamber 102, so as to achieve the purpose of uniform ventilation.
The air inlet side punching plate 103 also plays a certain flow equalizing role for the drying air flow, and during air return, the drying air flow passes through the air outlet side punching plate 105 for secondary flow equalizing role so as to better keep the uniform state of the drying air flow in the vertical direction and the horizontal direction.
In order to accelerate drying efficiency and uniformity on the basis of guaranteeing dry quality for the material on each tray rack 15 can both receive even drying effect, the transmission scheme of chain 12 in this embodiment sets up as follows: as shown in fig. 4, 8 and 9, a vertically arranged pin shaft 122 is penetrated through the middle of each pair of link plates 121, and the pin shaft 122 penetrates the link plates 121 downwards and makes a part of the pin shaft protrude below the guide rail 10; the chain driving mechanism 11 comprises a thumb wheel 118 with a wheel-shaped structure and a rotary driving component which drives the thumb wheel 118 to rotate and is arranged on the fixed base of the main bin body 1, the central axis of the thumb wheel 118 is vertically arranged, the thumb wheel 118 is rotationally arranged on the fixed base of the main bin body 1 and is driven by the rotary driving component to rotate, a plurality of convex protrusions 118a are uniformly distributed along the outer circumferential side of the thumb wheel 118, an engaging groove 118b with an outward opening is formed in the outer side of each protrusion 118a, the part of a pin shaft 122 protruding below the guide rail 10 is movably inserted into any engaging groove 118b, and during transmission, any engaging groove 118b of the thumb wheel 118 is in transmission fit with any pin shaft 122 of the chain 12.
As shown in fig. 6, 7 and 9, the rotary driving assembly for driving the
In this embodiment, in order to ensure that the chain 12 can drive the tray racks 15 to perform a relatively uniform motion, the
As shown in fig. 1, in order to discharge moisture during the drying process, an air valve assembly is provided in the main cartridge body 1, and the air valve assembly includes:
the first air valve 4 is opened when rapid moisture removal is needed and is arranged at the position, facing the air inlet side of the axial flow fan set 2, of the side wall of the main bin body 1;
the second air valve 5 is opened in work and is arranged at the air outlet of the air return chamber 106;
and a third air valve 6 which is opened in operation and is used for moisture discharge is arranged on the top wall of the main cabin body 1 at a position opposite to the drying chamber 104.
The method for removing humidity during drying is as follows:
in the drying and temperature rising stage, the first air valve 4 is closed, the second air valve 5 is completely opened, and the third air valve 6 is opened at a certain angle to discharge a small amount of wet air, so that the phenomenon that the internal wet air pressure is too high due to the increase of the temperature and the humidity in the main bin body 1 is avoided;
when the drying temperature rises to a set value and is kept stable, the opening angle of the third air valve 6 is properly increased, the first air valve 4 is kept closed, and the third air valve 6 is kept open and used for moisture removal in the drying process;
when the humidity of a plurality of drying processes is too high and the moisture needs to be rapidly exhausted, the third air valve 6 is completely opened, the first air valve 4 is opened, and the second air valve 5 is closed. Several humidity sensors are usually provided in the main silo 1 to monitor the humidity and thus control the opening of the associated valves for the purpose of dehumidification.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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