Working method and feed flow control method of drying equipment for grain materials
阅读说明：本技术 一种用于谷料的干燥设备的工作方法、进料流量控制方法 (Working method and feed flow control method of drying equipment for grain materials ) 是由 杨斌 于 2020-06-28 设计创作，主要内容包括：本发明涉及一种用于谷料的干燥设备的工作方法、进料流量控制方法,设计要点在于,在筒体的外侧均匀间隔设置分隔板,所述筒体、端部板以及分隔板之间构成多个间隔的储料槽；分隔板的表面、筒体的表面设置有加热单元；在进料斗的出料口的两侧的下部设置有左侧截流板、右侧截流板；导流烘干转动器设置在左侧截流板、右侧截流板的中间部位、且为顺时针转动；左侧截流板、右侧截流板均采用圆弧状构造,且分别与导流烘干转动器的分隔板的转动轨迹适配。采用本发明的一种用于谷料的干燥设备的工作方法、进料流量控制方法,能够有效的控制进料流量以及其他设计来保证干燥效果。(The invention relates to a working method and a feed flow control method of grain drying equipment, which are characterized in that partition plates are uniformly arranged at intervals on the outer side of a cylinder, and a plurality of spaced storage tanks are formed among the cylinder, an end plate and the partition plates; heating units are arranged on the surface of the partition plate and the surface of the cylinder; the lower parts of the two sides of the discharge hole of the feed hopper are provided with a left side cut-off plate and a right side cut-off plate; the diversion drying rotator is arranged in the middle of the left intercepting plate and the right intercepting plate and rotates clockwise; the left cut-off plate and the right cut-off plate are both of arc-shaped structures and are respectively matched with the rotating track of the partition plate of the diversion drying rotator. By adopting the working method and the feeding flow control method of the grain material drying equipment, the feeding flow can be effectively controlled and other designs can be adopted to ensure the drying effect.)
1. The working method of the drying equipment for the grain materials is characterized in that the grain materials enter a storage trough of a diversion drying rotator of a first drying box from a feeding port of a feeding hopper, then the storage trough of the diversion drying rotator rotates and is heated for a period of time, then the grain materials in the storage trough enter the first drying box, then slide down to a second drying box along a wave groove of a bottom plate and then slide to a third drying box, and the advancing path of the grain materials is S-shaped; a diversion drying rotator is arranged at an inlet of each drying box so as to tumble the grain materials; simultaneously, the air inlet-air suction hole works to discharge the water vapor in the drying box to the outside of the box body; and finally, the grain materials fall into a storage box for storage.
2. A grain feed flow control method for grain drying equipment, comprising: the drying device, the controller, the diversion drying rotator rotating module, the input module and the display module;
the input module is used for inputting grain feeding flow Q, and the output end of the input module is connected with the input end of the controller;
the output end of the controller is connected with the output ends of the diversion drying rotator rotating module and the display module;
the display module displays: the angular speed of the diversion drying rotator is w0And the heating temperature of the diversion drying rotator;
the controller controls the rotation speed and the heating temperature of the diversion drying rotator through the diversion drying rotator rotation module;
at the input of the grain feed rate QPreset ofWhen the angular speed reaches w, the controller controls the rotation of the diversion drying rotator0 preset；
Flow rate QPreset ofThe angular speed of the rotary device for drying and guiding the flow is w0 presetThe relationship of (a) is as follows:
the discharge volume of each storage tank is marked as V0The unit is m3(ii) a The diversion drying rotator is provided withx stock chest; the angular velocity of the diversion drying rotator during rotation is w0In units of rad/s;
flow rate Q of grain fallingPreset ofUnit is m3/min，QPreset ofAnd w0 presetThe relationship of (1) is:
wherein the radius of the central rotating shaft is r0The distance between the two end plates is l; the upper and lower surfaces of the partition board are both arc-shaped, and the radius of the lower surface is r0The radius of the upper surface of the partition plate is r, the circle centers of the circular arcs of the upper surface and the lower surface of the partition plate are the centers of the central rotating shafts, the middle points of the upper surface and the lower surface of the partition plate are in bilateral symmetry, the connecting line of the middle points of the upper surface and the lower surface passes through the circle centers of the circular arcs of the upper surface, the phase difference between the upper surfaces of the adjacent partition plates is β, and the phase difference between the lower surfaces of the adjacent partition plates is β0；β、β0Has the unit of rad, r0And l has the unit m.
Technical Field
The invention relates to the field of agricultural product equipment, in particular to a working method and a feed flow control method of grain drying equipment.
Background
CN107677047A provides a grain drying device, which comprises a cyclone cap, a cyclone bin, a bin cap, a drying bin, supporting legs and a wind gathering port; the drying bin is supported by supporting legs, the bin cap is arranged above the drying bin, the cyclone bin is arranged above the bin cap, and the cyclone cap is arranged above the cyclone bin; the air gathering port is arranged at the lower part of the drying bin, the drying bin is used for storing grains, air enters the drying bin through the air gathering port and then goes out of the cyclone cap through the cyclone bin, and a chimney effect is formed to upwards pump out the air in the drying bin, so that the aim of drying the grains in the drying bin is fulfilled. A plurality of air holes are formed in the drying bin; a fan is arranged in the cyclone bin, the fan is connected with a cyclone cap at the top of the cyclone bin through a fan shaft, and the cyclone cap drives the fan to rotate to accelerate the air in the drying bin to flow upwards; the air gathering port is designed into a horn shape, so that the air gathering amount is increased, the flow rate of gas entering the drying bin is increased, and the drying efficiency is improved.
CN 208901793U discloses a grain drying machine with go mould function, including the stoving jar, the top of stoving jar inner chamber cup joints with the one end activity of bracing piece, and the other end of bracing piece cup joints with the middle part activity on support frame top, is connected through drive gear I and driving motor's output shaft transmission between the two sets of friction plates in top. This grain drying machine with go mould function, through the friction plate, drive gear I and driving motor's cooperation, be convenient for better take place relative rolling friction between some slightly mildly mildewed cereal and the friction plate, thereby effectual getting rid of the mildewing on cereal surface, simultaneously through the setting of air-blower and electric heat room, can be going to cereal not to get simultaneously, carry out drying process to it, thereby avoided cereal to take place the problem of mildening once more, the effectual work efficiency and the practicality that improve the device when handling mildening and mildewing cereal.
CN 208620764U discloses stirring formula drying device of cereal, including the stoving storehouse, first mounting panel and second mounting panel are installed respectively to the both ends of stoving storehouse bottom, and the bottom of second mounting panel articulates there are two sets of electric putter, two sets of slide rails are installed to the bottom of first mounting panel, the slider is installed to the bottom of slide rail, and the bottom of slider articulates there is the bracing piece, the intermediate position department of stoving storehouse bottom installs the hot plate, and the stoving storehouse lateral wall is close to the one end of first mounting panel and installs control panel, the top of stoving storehouse lateral wall is provided with two sets of exhaust bins, and installs the outlet duct on the inside top in storehouse of airing exhaust, and the bottom of outlet duct evenly installs one row of gas outlet, the air pump is installed near the one end of first mounting panel to stoving storehouse top.
CN 208846875U discloses a multifunctional agricultural grain drying device, comprising a bottom plate, wherein the two sides of the bottom plate are provided with slideways, the slideways comprise a first slideway and a second slideway, the first slideway is internally threaded with a push rod, the second slideway is provided with a cushion block in a sliding way, the cushion block is rotatably connected with the push rod, the bottom of the bottom plate is provided with a universal wheel, a drying cylinder is fixedly arranged on a bracket, the drying cylinder is provided with a feed hopper, the upper end of the drying cylinder is provided with a first motor, the first motor is connected with a grinding roller, the lower end of the drying cylinder is provided with a second motor, the second motor is connected with a fixed shaft, the fixed shaft is provided with a turnover plate, the bottom of the drying cylinder is connected with a guide hopper, the joint of the drying cylinder and the guide hopper is provided with a sealing plate, the outer side of the sealing plate is provided with a blanking hole, the middle part of the sealing plate is, the bottom of the conduit is connected with a collecting bag, and the outer side of the conduit is provided with an air blower.
From the above documents, it is known that: drying of grains has been a focus of attention in the field of agricultural machinery. The problems mainly come down to the following points:
1) how to increase the heating time of the grain;
2) how to increase the heated surface of the grain (i.e., isotropy when heated);
3) how to effectively remove the moisture evaporated from the grains to the outside of the equipment.
Disclosure of Invention
The invention aims to provide a working method of grain drying equipment, which can effectively dry grains.
Another object of the present invention is to provide a method for controlling a feed flow rate of grain drying equipment, which can effectively control the feed flow rate of grain.
The technical purpose of the invention is realized by the following technical scheme:
a flow-directing drying rotor, comprising: the device comprises a central rotating shaft and a cylindrical barrel arranged on the central rotating shaft; the outer side of the cylinder body is uniformly provided with partition plates at intervals, the short side direction of each partition plate is the radius direction of the central rotating shaft, and the long side direction of each partition plate is parallel to the central line of the central rotating shaft;
end plates are arranged at two ends of the cylinder; the height of the cylinder body and the end plate is flush with the height of the partition plate;
a plurality of spaced storage tanks are formed among the cylinder, the end plates and the partition plates;
the surface of the partition plate and the surface of the cylinder are provided with heating units.
Furthermore, the heating units arranged on the surface of the partition plate and the surface of the cylinder are electric heaters.
Furthermore, the outer surface of the cylinder between the partition plates is concave.
A feed hopper is provided, wherein a left side cut-off plate and a right side cut-off plate are arranged at the lower parts of two sides of a discharge hole of the feed hopper; the diversion drying rotator is arranged in the middle of the left intercepting plate and the right intercepting plate and rotates clockwise;
the left cut-off plate and the right cut-off plate are both of arc-shaped structures and are respectively matched with the rotating track of the partition plate of the diversion drying rotator of the first drying box; the distance between the partition plates and the center of the central rotating shaft away from the cylinder is recorded as r, the phase difference between the adjacent partition plates is recorded as beta, and the length of the left intercepting plate is not less than beta r.
Furthermore, the discharge hole formed by the left cut-off plate and the right cut-off plate corresponds to the size of a single storage tank of the diversion drying rotator.
Further, the length of the right side closure plate is not more than (pi-beta) r, beta is rad.
A drying apparatus for grain, comprising: a feed hopper and a first drying box;
the feed hopper is arranged at the top of the first drying box;
an opening is arranged at the top of the left end of the first drying box and matched with a discharge hole of the feed hopper; a diversion drying rotator is arranged at the upper part of the left opening of the first drying box;
the upper surface of the bottom plate of the first drying box is inclined towards the opening and the right side of the bottom plate is provided with an opening; the upper surface of the bottom plate of the first drying box is provided with a wave groove, the wave groove extends along the length direction of the box body, and the valley peak-valley bottom direction of the wave groove extends along the width direction of the box body;
the upper surface of the bottom plate of the first drying box is provided with a heating unit.
Further, the bottom plate of the first drying box is provided with air injection holes; the top plate of the first drying box is provided with an air suction hole.
Further, still include: a second drying box, a third drying box and a material storage box; the first drying box is arranged at the upper part of the second drying box, and the second drying box is arranged at the upper part of the third drying box;
a second drying box is arranged right below the first drying box, and a flow guide drying rotator of the second drying box is correspondingly arranged below an opening on the right side of a bottom plate of the first drying box; a bottom plate of the second drying box is provided with air injection holes; a top plate of the second drying box is provided with an air suction hole; the upper surface of the bottom plate of the second drying box is inclined towards the opening, and the lower part of the left side of the bottom plate of the second drying box is provided with an opening;
a third drying box is arranged right below the second drying box, and a diversion drying rotator of the third drying box is correspondingly arranged below an opening on the left side of a bottom plate of the second drying box; a bottom plate of the third drying box is provided with air injection holes; a top plate of the third drying box is provided with an air suction hole; the upper surface of the bottom plate of the third drying box is inclined towards the opening, and the lower part of the middle area is provided with a blanking port;
the upper surfaces of the bottom plates of the second drying box and the third drying box are provided with wave grooves, the wave grooves extend along the length direction of the box body, and the valley peak-valley bottom directions of the wave grooves extend along the width direction of the box body; the upper surfaces of the bottom plates of the second drying box and the third drying box are provided with heating units;
and a material storage box is arranged below the third drying box.
A working method of drying equipment for grain materials is characterized in that the grain materials enter a material storage groove of a diversion drying rotator of a first drying box from a material inlet of a feed hopper, then the material storage groove of the diversion drying rotator rotates, the grain materials in the material storage groove enter the first drying box after being heated for a period of time, then the grain materials in the material storage groove slide down into a second drying box along a wave groove of a bottom plate and then slide into a third drying box, and the advancing path of the grain materials is S-shaped; a diversion drying rotator is arranged at an inlet of each drying box so as to tumble the grain materials; simultaneously, the air inlet-air suction hole works to discharge the water vapor in the drying box to the outside of the box body; and finally, the grain materials fall into a storage box for storage.
A working method of a drying device for grain materials is characterized in that the flow rate Q of grain entering a first dryer is adjusted according to the flow rate of the grain flowing in the first dryer, a second dryer and a third dryer;
specifically, the angular speed of the diversion drying rotator during rotation is adjusted to be w0To adjust the falling flow rate Q of the grains;
the flow Q and the angular velocity of the diversion drying rotator during rotation are w0The relationship of (a) is as follows:
the discharge volume of each storage tank is marked as V0The unit is m3(ii) a The diversion drying rotator is provided with x stock chutes; the angular velocity of the diversion drying rotator during rotation is w0In units of rad/s;
flow rate Q of grain falling in m3Min, Q and w0The relationship of (1) is:
wherein the radius of the central rotating shaft is r0The distance between the two end plates is l; the upper and lower surfaces of the partition board are both arc-shaped, and the radius of the lower surface is r0The radius of the upper surface is r; the circle centers of the circular arcs of the upper surface and the lower surface of the partition plate are all central rotating shaftsThe center of the partition board is symmetrical about the midpoints of the upper surface and the lower surface, the connecting line of the midpoints of the upper surface and the lower surface passes through the center of the circular arc of the upper surface, the phase difference between the upper surfaces of the adjacent partition boards is recorded as β, and the phase difference between the lower surfaces of the adjacent partition boards is recorded as β0；β、β0Has the unit of rad, r0And l has the unit m.
A grain feed flow control method for grain drying equipment, comprising: the device comprises a controller, a diversion drying rotator rotating module, an input module and a display module;
the input module is used for inputting grain feeding flow Q, and the output end of the input module is connected with the input end of the controller;
the output end of the controller is connected with the output ends of the diversion drying rotator rotating module and the display module;
the display module displays: the angular speed of the diversion drying rotator is w0And the heating temperature of the diversion drying rotator;
the controller controls the rotation speed and the heating temperature of the diversion drying rotator through the diversion drying rotator rotation module;
at the input of the grain feed rate QPreset ofWhen the angular speed reaches w, the controller controls the rotation of the diversion drying rotatorPresetting 0;
flow rate QPreset ofThe angular speed of the rotary device for drying and guiding the flow is w0 presetThe relationship of (a) is as follows:
the discharge volume of each storage tank is marked as V0The unit is m3(ii) a The diversion drying rotator is provided with x stock chutes; the angular velocity of the diversion drying rotator during rotation is w0In units of rad/s;
flow rate Q of grain fallingPreset ofUnit is m3/min，QPreset ofAnd w0 presetThe relationship of (1) is:
wherein, inRadius of the central axis of rotation being r0The distance between the two end plates is l; the upper and lower surfaces of the partition board are both arc-shaped, and the radius of the lower surface is r0The radius of the upper surface of the partition plate is r, the circle centers of the circular arcs of the upper surface and the lower surface of the partition plate are the centers of the central rotating shafts, the middle points of the upper surface and the lower surface of the partition plate are in bilateral symmetry, the connecting line of the middle points of the upper surface and the lower surface passes through the circle centers of the circular arcs of the upper surface, the phase difference between the upper surfaces of the adjacent partition plates is β, and the phase difference between the lower surfaces of the adjacent partition plates is β0；β、β0Has the unit of rad, r0And l has the unit m.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1) in the invention (the equipment is applied for another case), grain materials enter a material storage groove of a diversion drying rotating device 2 of a first drying box 3 from a material inlet of a feed hopper 1, then are heated for a period of time, enter the first drying box, then slide down to a second drying box along a wave groove of a bottom plate, and then slide into a third drying box, and the advancing path of the grain materials is S-shaped; a diversion drying rotator is arranged at an inlet of each drying box so as to tumble the grain materials; meanwhile, the arrangement of air inlet-outlet (better, air suction) holes is matched, and the water vapor in the drying box is discharged to the outside of the box body; finally, the grain materials fall into a material storage box 6 for storage; can be effectual to the millet material dry.
2) The invention provides (the equipment is applied for another application): the design of the left intercepting plate 1-1 and the right intercepting plate 1-2 ensures the flow control function of the diversion drying rotator.
3) In the invention: the outer surface of the cylinder between the partition plates 2-3 is concave, namely the lower side of the storage tank 2-5 is concave; the design aims at better storing and better heating the grains in the storage tanks 2-5.
4) The invention provides a flow calculation method of a diversion drying rotator, which is specifically represented as follows:
the above formula can be the foundation of the progress control of millet material feed flow (not only can know the flow that the millet material got into first stoving case, also can know the whole required time of accomplishing of millet material), and on the other hand also is the foundation of the design of parameters such as the relevant shape of division board and stock chest quantity.
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is a schematic structural view of a drying apparatus for grain materials according to the first embodiment.
Fig. 2 is a schematic three-dimensional design diagram of the flow-guiding drying rotator according to the first embodiment.
Fig. 3 is a design view of a flow guide drying rotator in the first embodiment.
FIG. 4 is a drawing showing the combination of the first embodiment of the deflector drying rotor with the left and right cut-off plates.
FIG. 5 is a three-dimensional design view of the wave grooves on the upper surface of the bottom plate of the drying box in the first embodiment.
Fig. 6 is a schematic cross-sectional view of the flow-guiding drying rotator according to the second embodiment.
Fig. 7 is a schematic view of several designs of the separator plate.
FIG. 8 shows the discharge volume V of each storage tank0Schematic design calculation of (1).
Detailed Description
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种岩棉生产用节能冲天炉设备及布料工艺