CN103859019B - Large output low temperature circulating grain products drying means, drying equipment and installation method thereof - Google Patents
Large output low temperature circulating grain products drying means, drying equipment and installation method thereof Download PDFInfo
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- CN103859019B CN103859019B CN201410127259.2A CN201410127259A CN103859019B CN 103859019 B CN103859019 B CN 103859019B CN 201410127259 A CN201410127259 A CN 201410127259A CN 103859019 B CN103859019 B CN 103859019B
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Abstract
A kind of large output low temperature circulating grain products drying means, drying equipment and installation method thereof, comprise bottom stand, drying machine body is installed on its top, and its top is the section of storing, and middle part is the drying section of storing, and bottom is grain discharging section; The intrinsic both sides of drying machine are respectively hot-air channel and air exhaust passage, air exhaust passage inside is provided with elevator, elevator runs through whole air exhaust passage, elevator head is installed on the top of air exhaust passage, elevator afterbody is installed on the bottom of air exhaust passage, and drying machine body bottom portion connects discharges EGR; The outside being positioned at air exhaust passage is also provided with the pressure fan be communicated with it; Be positioned at elevator head place and be also provided with pneumatic separation device, the exit of pneumatic separation device connects even tossed device, and even tossed device is positioned at the top of drying machine body; The drying section of storing being positioned at drying machine body is provided with air inlet ventilation pipe and air draft ventilation duct, and it is between the upper and lower every being crisscross arranged; Switch board is installed in stand bottom, bottom.Operating efficiency is high.
Description
Technical field
The present invention relates to grain dry technical field, especially a kind of large output low temperature circulating grain products drying means, drying equipment and installation method thereof.
Background technology
When carrying out grain dry, not only require high rate of drying, and require high quality, circulating drying machine generally adopts oven dry-tempering drying process, first cereal is preserved a period of time, evaporation portion of water, then cereal is incubated a period of time, cereal internal moisture is diffused to the surface, reduces the gradation of moisture of cereal inside, then enter next step drying process.This technique can improve the quality of cereal, reduces energy consumption, but increases a tempering process in dry run, certainly will reduce the productivity ratio of drying machine.
Japan circulation grain drier inside is provided with delay section, and the ratio of its delay section time and drying time is 5:1 ~ 8:1.The tempering time of US corn processing space has and reaches 24h.The crop dryer of the various models that China produces at present, is provided with long delay section substantially.Therefore, under the prerequisite that output is fixing, delay section just occupies the very large ratio of complete machine, due to body can not be unlimited increase or expand, limit the development of large throughput cycles crop dryer all the time.
Large output grain drying of the prior art, its floor space is large, inefficiency.
Summary of the invention
The applicant, for the shortcoming in above-mentioned existing production technology, provides large output method for drying cereal, drying equipment and installation method thereof, thus improves drying efficiency, take up room little.
The technical solution adopted in the present invention is as follows:
A kind of large output low temperature circulating grain products drying equipment, comprise bottom stand, described bottom stand is provided with drying machine body, three parts are divided into from top to bottom in described drying machine body, top is the section of storing, middle part is the drying section of storing, and bottom is grain discharging section, and described grain discharging section is positioned at above the stand of bottom; Be positioned at the intrinsic both sides of drying machine and be respectively arranged with hot-air channel and air exhaust passage, described air exhaust passage inside is provided with elevator, described elevator runs through whole air exhaust passage, elevator head is installed on the top of air exhaust passage, elevator afterbody is installed on the bottom of air exhaust passage, and at elevator afterbody place, feed hopper being installed, drying machine body bottom portion connects discharges EGR; The outside being positioned at air exhaust passage is also provided with the pressure fan be communicated with it; Be positioned at elevator head place and be also provided with pneumatic separation device, the exit of pneumatic separation device connects even tossed device, and described even tossed device is positioned at the top of drying machine body; The drying section of storing being positioned at drying machine body is provided with air inlet ventilation pipe and air draft ventilation duct, and described air inlet ventilation pipe and air draft ventilation duct are between the upper and lower every being crisscross arranged; Switch board is installed in stand bottom, described bottom.
Further improvement as technique scheme:
The structure of described pneumatic separation device is: comprise selection by winnowing body, described selection by winnowing body is provided with charging aperture, described charging aperture is connected with the outlet of elevator head, and described selection by winnowing body is also provided with impurity outlet and discharging opening, and described discharging opening is connected with even tossed device by elephant trunk; Described impurity outlet is connected with air exhaust passage by dust removing tube, and described dust removing tube head is reducer pipe; The both sides of described selection by winnowing body are provided with ventilative net, and the front of selection by winnowing body is provided with air-flow plate;
The structure of described even tossed device is: comprise the charging housing exporting with pneumatic separation device and be connected, one end of described charging housing is provided with motor, the output of described motor installs rotating shaft by reductor, and the bottom of described rotating shaft is installed and shed dish, described in shed dish and be positioned at drying machine body interior;
The top of described drying machine body is provided with the hot blast adjusting device and cold wind adjusting device that are connected with hot-air channel;
The section of storing being positioned at drying machine body is provided with top and completely measures warning device, and the drying section of storing being positioned at drying machine body is provided with low material level warning device, and the grain discharging section being positioned at drying machine body is provided with blockage alarming device and grain temperature sensing device; Be positioned at discharge EGR place and be provided with grain moisture on-line detector;
The import department of described hot-air channel is provided with hot blast temperature sensing device;
Be multiple-layer stacked body in the drying section of storing of drying machine body, every layer is assembled by side plate and the air inlet ventilation pipe be arranged on side plate and air draft ventilation duct;
Be positioned at hot-air channel side and be provided with multiple heat absorbing device, the structure of described heat absorbing device is: comprise and be arranged at drying machine body interior side plate, described side plate is provided with slide rail, and described slide rail is provided with the baffle plate slided along it, described baffle plate is driven by control cylinder.
Utilize a drying means for large output low temperature circulating grain products drying equipment, comprise the steps:
The first step: first start power supply, switch board sets hot blast temperature desired value, grain temperature limit value, moisture target value;
Second step: open cold wind adjusting device, open pressure fan, enter air supply pattern;
3rd step: setting hot blast temperature and grain temperature, in drying regime, the measured value of hot blast temperature sensing device and grain temperature sensing device can compare currency and setting value automatically, and the adjustment of cold wind adjusting device open degree is once carried out in action in every three minutes, adjustment hot blast temperature;
4th step: elevator, evenly tossed device are started working, and enter feed mode, treat that warning device outgoing signal is completely measured at top, charging terminates;
5th step: enter cyclic drying pattern, in recurrent state, grain moisture on-line detector measures a moisture in every 30 minutes, records moisture data lower than Target moisture, then carry out shutdown process, and point out Target moisture to reach, and green alarm lamp is long bright;
6th step: in drying regime, measures a moisture, records double moisture data lower than Target moisture for every ten minutes, then carry out shutdown process, and point out Target moisture to reach, and green alarm lamp is long bright;
7th step: under grain moisture on-line detector wait state, carries out manual measurement moisture, and under sampling sufficient situation, measuring process continues five minutes; Dry run to be recycled terminates, and drying machine automatically reverts to halted state;
8th step: manually opened discharge mode, discharge EGR and enter discharge state, dried cereal is discharged by bottom, and discharge terminates to shut down.
A kind ofly utilize the installation method of large output low temperature circulating grain products drying equipment: comprise the steps:
The first step: equipment preparation: be divided into from top to bottom by equipment and organize module more, is respectively the first module, the second module, the 3rd module, four module, the 5th module, the 6th module and the 7th module;
Described first module is bottom stand and bottom aggregate bin;
Described second module, multiple 3rd module, four module, the 5th module superposition composition drying machine body; Described second module is drying machine body lower part assembly, and it comprises grain discharging section, the air inlet ventilation pipe that assembled by side plate and air draft ventilation duct, and is positioned at air exhaust passage section and the hot-air channel section of both sides; Multiple 3rd module assembled becomes parts in drying machine body, and the structure of described 3rd module is: comprise the air inlet ventilation pipe and air draft ventilation duct that are assembled by side plate and the air exhaust passage section being positioned at its both sides and hot-air channel section, be positioned at the elevator interlude of air exhaust passage section; Described four module is the upper element of drying machine body, and its structure is identical with the 3rd module; Described 5th module is the cover plate assembly of drying machine body, and it comprises part four module and cover plate, is assembled by side plate;
Described 6th module comprises pneumatic separation device, evenly tossed device and elevator top section;
Described 7th module is elevator bottom stage;
Second step: use horizontal measuring instrument to find Horizon accurately, according to the size of bottom stand, utilizes four anchor points of tape measure and bottom, scriber location stand;
3rd step: fixed by bottom stand with foundation bolt, completes the installment work of whole stand, is fixed on the stand of bottom by bottom aggregate bin by crane, completes the installation of the first module, has been assisted by fork truck in artificial and factory;
4th step: drive division, ventilation duct, elevator interlude and side plate are completed assembling in early stage by workman on the ground, then be arranged on the stand of bottom under crane is auxiliary, the grain discharging section of the second module and bottom aggregate bin are connected, complete the installation of the second module;
5th step: the installation procedure of the 3rd module, four module, the 5th module adopts method identical in the 4th step, successively each module is completed respective assembling on the ground, then multiple 3rd module is arranged in the second module successively, again four module is fixed on the 3rd module top, finally the 5th module is fixed on four module top, junction between modules is fastened by bolts in channel interior, namely completes the installation of drying machine body; After modules assembling, its respective air exhaust passage section and hot-air channel section form through air exhaust passage and hot-air channel;
6th step: the 6th module is arranged on drying machine bodies top by crane;
7th step: the 7th module is arranged on elevator bottom by fork truck.
Beneficial effect of the present invention is as follows:
(1) compact conformation of the present invention, rationally, and there is the advantage that output is large, precipitation speed is fast, intelligence degree is high, operating maintenance is convenient, energy-conservation, efficient, safe.
(2) the present invention by hoist installation in air exhaust passage, make drying machine and elevator integrated design, greatly save and take up room, and the hot blast of discharging has carried out contact drying to cereal, the secondary achieving waste heat utilizes, and in addition, elevator is arranged on the installation security performance that inner structure also improves elevator, avoid the potential risk of elevator integral installation, grain dry excellent in efficiency.
(3) the present invention arranges pneumatic separation device at elevator head grain outlet, and what utilize cereal sheds process, and timely, lasting carries out impurity cleaning to cereal, reduces the dust pollution caused in follow-up row's grain process, improves " stirring up a cloud of dust " work present situation.
(4) design of heat absorbing device of the present invention, in real time, the intelligent size controlling drying machine body interior air quantity and temperature, prevent the generation of the percent cracked rice caused because hot blast temperature is too high on the one hand, on the other hand, fast, heat demand information is controlled timely, while ensureing to meet grain dry demand, reduce the waste of heat as much as possible, effectively saved thermal loss.
(5) design of the even tossed device of the present invention, effectively achieve storehouse inner top cereal after grain to be evenly distributed, there is not cereal accumulation and occur drop phenomenon, after guaranteeing that full amount warning device is reported to the police, enter flow vector and reach normal storage amount, realize drying machine " to make the best use of everything ", also prevent into flow vector excessive and cause drying machine overload operation.
(6) put out cereal the design of mode in bottom of the present invention, realizes putting out cereal fast function, compare top and put out cereal, and reduces lifting operation of once putting out cereal, and saves and put out cereal the time, and the bottom mode of putting out cereal operate, easy to maintenance.
(7) drying equipment of the present invention changes the ratio of tempering time in the past and drying time, shorten the ratio of tempering time in whole dry run, under the condition that output is identical, the ratio of tempering time and drying time is about 1:4, improve the contact area of cereal and hot blast greatly, and the ventilation duct arrangement mode by misplacing up and down, add the vent passages quantity of hot blast, cereal carries out in the drying section of storing can natural transformation orientation, angle, the self-transposition of omnidirectional drop point, slowly, flow downward uniformly, enhance the ability that hot blast penetrates grain layer, realize the combination drying mode of cross-current drying and concurrent drying, achieve the ability that hot blast penetrates grain layer, while grain dry, the air exhaust passage of Wind Volume serves the effect of of short duration tempering to the cereal in dry run, so in guarantee output, after grain dry quality prerequisite under, improve rate of drying, prevent percent cracked rice from increasing.
(8) the present invention adopts intelligent automatic control technology, according to the temperature of cereal in dry run, humidity, moisture, adopt general PLC remote control program, on-line real time monitoring grain moisture, adopt wind-warm syndrome, paddy temperature alarm device and chain control device, make drying machine substantially realize full automation, reduce workman's field labor time and labour intensity, save labour.
(9) drying machine operating system is simple, intelligent, and operation pages is directly perceived, be easy to grasp, and function screen is provided with password, prevents non-working person's maloperation, ensures that drying machine normally runs.
(10) drying means of the present invention, its operation full-automation completes, and save workman labour, operating efficiency is high, and drying effect is good.
(11) equipment installation method of the present invention, it is easy and simple to handle, quick, and security is high, and workman, without the need to crossing equipment in high-altitude, avoids site operation accident to occur, and ensures the safety in utilization of workman.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of pneumatic separation device of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the workflow diagram of pneumatic separation device of the present invention.
Fig. 6 is the front view of heat absorbing device of the present invention.
Fig. 7 is the right view of Fig. 6.
Fig. 8 is the front view of the even tossed device of the present invention.
Fig. 9 is the right view of Fig. 8.
Figure 10 is that the present invention discharges EGR periodic duty flow chart.
Figure 11 is that the present invention discharges EGR discharge workflow diagram.
Figure 12 is the installation procedure figure of drying equipment of the present invention.
Wherein: 1, drying machine body; 2, bottom stand; 3, elevator; 4, hot-air channel; 5, air exhaust passage; 6, pressure fan; 7, air inlet ventilation pipe; 8, air draft ventilation duct; 9, hot blast adjusting device; 10, cold wind adjusting device; 11, heat absorbing device; 12, pneumatic separation device; 13, feed hopper; 14, even tossed device; 15, EGR is discharged; 16, grain moisture on-line detector; 17, hot blast temperature sensing device; 18, grain temperature sensing device; 19, warning device is completely measured in top; 20, low material level warning device; 21, blockage alarming device; 22, switch board; 23, the section of storing; 24, the drying section of storing; 25, grain discharging section; 26, elevator head; 27, elevator afterbody; 28, elephant trunk; 29, winnowing pan; 30, charging aperture; 31, selection by winnowing body; 32, impurity outlet; 33, discharging opening; 34, dust removing tube; 35, reducer pipe; 36, air-flow plate; 37, control cylinder; 38, baffle plate; 39, slide rail; 40, charging housing; 41, rotating shaft; 42, dish is shed; 43, motor; 44, cylinder; 45, deflector.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As depicted in figs. 1 and 2, the large output low temperature circulating grain products drying equipment of the present embodiment, comprise bottom stand 2, bottom stand 2 is provided with drying machine body 1, be divided into three parts from top to bottom in drying machine body 1, top is the section of storing 23, and middle part is the drying section of storing 24, bottom is grain discharging section 25, and grain discharging section 25 is positioned at above bottom stand 2; The both sides being positioned at drying machine body 1 are respectively arranged with hot-air channel 4 and air exhaust passage 5, air exhaust passage 5 inside is provided with elevator 3, elevator 3 runs through whole air exhaust passage 5, elevator head 26 is installed on the top of air exhaust passage 5, elevator afterbody 27 is installed on the bottom of air exhaust passage 5, and at elevator afterbody 27 place, feed hopper 13 is installed, connect bottom drying machine body 1 and discharge EGR 15; The outside being positioned at air exhaust passage 5 is also provided with the pressure fan 6 be communicated with it; Be positioned at elevator head 26 place and be also provided with pneumatic separation device 12, the exit of pneumatic separation device 12 connects even tossed device 14, and even tossed device 14 is positioned at the top of drying machine body 1; The drying section of storing 24 being positioned at drying machine body 1 is provided with air inlet ventilation pipe 7 and air draft ventilation duct 8, and air inlet ventilation pipe 7 and air draft ventilation duct 8 are between the upper and lower every being crisscross arranged; Switch board 22 is installed in bottom stand 2 bottom.
Control device is except switch board 22, also comprise control program and control circuit, detected and control device by online data, pretreatment in advance can be carried out to dry run, solve or reduce Grain Drying Process lag issues, automatic adjustment hot blast enters temperature, thus makes hot blast temperature balanced, reaches better drying effect.
The present invention also comprises conventional heating plant, it comprises the common apparatus such as hot-blast pipe line, heat exchanger, hot-blast stove, air is heated through hot-blast stove, heat exchanger the temperature set, under the effect of pressure fan 6, be mixed into hot-air channel 4 through hot blast adjusting device 9, cold wind adjusting device 10.
As shown in Fig. 3, Fig. 4 and Fig. 5, the structure of pneumatic separation device 12 is: comprise selection by winnowing body 31, selection by winnowing body 31 is provided with charging aperture 30, charging aperture 30 is connected with the outlet of elevator head 26, selection by winnowing body 31 is also provided with impurity outlet 32 and discharging opening 33, discharging opening 33 is connected with even tossed device 14 by elephant trunk 28; Impurity outlet 32 is connected with air exhaust passage 5 by dust removing tube 34, and dust removing tube 34 head is reducer pipe 35; The both sides of selection by winnowing body 31 are provided with ventilative net, and the front of selection by winnowing body 31 is provided with air-flow plate 36.In the operation process that the winnowing pan 29 of elevator head 26 from top to bottom turns to, cereal is shed enters pneumatic separation device 12, utilize the negative pressure that pressure fan 6 pairs of pneumatic separation devices 12 are formed, via dust removing tube 34, air exhaust passage 5 is entered to the impurity kicked up in the process of shedding, finally discharge body and enter dust storage chamber, according to the actual requirements, regulate the air-flow plate 36 in pneumatic separation device 12 front, regulate the pressure size of pneumatic separation device 12 inside, the impurity in cereal is thoroughly removed.
As shown in Figure 8 and Figure 9, the structure of even tossed device 14 is: comprise and export with pneumatic separation device 12 the charging housing 40 be connected, one end of charging housing 40 is provided with motor 43, the output of motor 43 installs rotating shaft 41 by reductor, the bottom of rotating shaft 41 is installed and is shed dish 42, sheds dish 42 and is positioned at drying machine body 1 inside.Ensure shedding uniformity and preventing mountain peak shape cereal from piling up of cereal.
The top of drying machine body 1 is provided with the hot blast adjusting device 9 and cold wind adjusting device 10 that are connected with hot-air channel 4.Be positioned at discharge EGR 15 place and be provided with grain moisture on-line detector 16.
The section of storing 23 being positioned at drying machine body 1 is provided with top and completely measures warning device 19, the drying section of storing 24 being positioned at drying machine body 1 is provided with low material level warning device 20, and the grain discharging section 25 being positioned at drying machine body 1 is provided with blockage alarming device 21 and grain temperature sensing device 18.
The import department of hot-air channel 4 is provided with hot blast temperature sensing device 17.
Be multiple-layer stacked body in the drying section of storing 24 of drying machine body 1, every layer is assembled by side plate and the air inlet ventilation pipe 7 be arranged on side plate and air draft ventilation duct 8.
As shown in Figure 6 and Figure 7, be positioned at hot-air channel 4 side and be provided with multiple heat absorbing device 11, the structure of heat absorbing device 11 is: comprise and be arranged at the inner side plate of drying machine body 1, side plate is provided with slide rail 39, slide rail 39 is provided with the baffle plate 38 slided along it, baffle plate 38 is driven by control cylinder 37.
The basic structure of drying machine body 1 of the present invention belongs to steel construction warehouse.
The drying section of storing 24 of the present invention sets gradually transversely arranged air inlet ventilation pipe 7 layers from bottom to top, air draft ventilation duct 8 layers, air inlet ventilation pipe 7 layers and air draft ventilation duct about 8 layers Heterogeneous Permutations, one end of air inlet ventilation pipe 7 is arranged on hot-air channel 4 side to be had on the drying section of storing 24 side plate of opening, communicate with hot-air channel 4, the other end is arranged on air exhaust passage 5 side not to be had on the drying section of storing 24 side plate of opening, hot-air channel 4 side of air inlet ventilation pipe 7 layers is provided with heat absorbing device 11, when cereal to be dried in drying machine body 1 does not reach this layer height material level, switch board 22 obtains signal input, start heat absorbing device 11 immediately, the air inlet of this layer of air inlet ventilation pipe 7 layers is closed along the planned orbit arranged, one end of air draft ventilation duct 8 is arranged on air exhaust passage 5 side to be had on the drying section of storing 24 side plate of opening, communicate with air exhaust passage 5, the other end is arranged on hot-air channel 4 side not to be had on the drying section of storing 24 side plate of opening.This structural change in the past cereal in the time of staying ratio of the section of storing 23 with the dry section of storing 24, add the area that the height of the drying section of storing 24 and cereal contact with hot blast, grain carry out in the drying section of storing 24 natural transformation orientation, angle, omnidirectional drop point self-transposition slowly, uniformly flow downward, realize the combination drying mode of cross-current drying and concurrent drying, under the prerequisite ensureing Quality of Grain Drying, substantially increase drying uniformity and rate of drying, control heat demand information fast, timely, effectively save thermal loss.
It is inner that elevator 3 of the present invention is arranged on air exhaust passage 5, elevator head 26 is arranged on air exhaust passage 5 top, be connected with pneumatic separation device 12, elevator afterbody 27 is arranged on the side of bottom stand 2, be connected with discharge EGR 15, the interlude of elevator 3 is connected with air exhaust passage 5 by pull bar, pass the hot blast of the dry section of storing 24 under the effect of pressure fan 6, waste heat is utilized to carry out post bake to the cereal of cyclic drying in elevator 3, finally discharge outside machine by pressure fan 6, complete the dry run of hot blast.It is inner that elevator 3 is arranged on air exhaust passage 5, substantially increases the installation security performance of elevator 3.
Heat absorbing device 11 of the present invention, comprises control cylinder 37, slide rail 39, baffle plate 38.Heat absorbing device 11 designs the hot wind inlet place in hot-air channel 4 inside, is fixed by bolts on the side plate of the drying section of storing 24.When the installation amount of cereal to be dried does not reach the height of this air inlet ventilation pipe 7 layers, material level warning device is to switch board 22 transmission information, switch board 22 pairs of control cylinders 37 send instruction, the baffle plate 38 be connected with control cylinder 37 runs forward along slide rail 39 under the thrust of control cylinder 37, until the air inlet of air inlet ventilation pipe 7 layers is blocked completely by baffle plate 38.This device, under the prerequisite of satisfied dry demand, effectively avoids heat waste, prevents the super-dry that heat too much causes, reduce the generation of grain crack rate, and achieve real-time intelligentized control method.
Be provided with below grain discharging section 25 of the present invention and discharge EGR 15, grain moisture on-line detector 16, the core of discharging EGR 15 is the deflectors 45 automatically controlled by cylinder 44, detect through grain moisture on-line detector 16, cereal miss the mark moisture, moisture data feed back to switch board 22, switch board 22 sends instruction, the recurrent state of cereal through discharging EGR 15 enters elevator 3 and proceeds drying cycles, detect through grain moisture on-line detector 16, cereal reaches Target moisture, moisture data feed back to switch board 22, switch board 22 sends instruction, cylinder 44 runs to drain position by circulation position, the discharge state of cereal through discharging EGR 15 discharges drying machine, complete drying.
The drying means of the utilization large output low temperature circulating grain products drying equipment of the present embodiment, comprises the steps:
The first step: first start power supply, switch board 22 sets hot blast temperature desired value, grain temperature limit value, moisture target value;
Second step: open cold wind adjusting device 10, opens pressure fan 6, enters air supply pattern;
3rd step: setting hot blast temperature and grain temperature, in drying regime, the measured value of hot blast temperature sensing device 17 and grain temperature sensing device 18 can compare currency and setting value automatically, and the adjustment of cold wind adjusting device 10 open degree is once carried out in action in every three minutes, adjustment hot blast temperature;
4th step: elevator 3, evenly tossed device 14 are started working, and enter feed mode, treat that warning device 19 outgoing signal is completely measured at top, charging terminates;
5th step: enter cyclic drying pattern, in recurrent state, grain moisture on-line detector 16 measures a moisture in every 30 minutes, records moisture data lower than Target moisture, then carry out shutdown process, and point out Target moisture to reach, and green alarm lamp is long bright;
6th step: in drying regime, measures a moisture, records double moisture data lower than Target moisture for every ten minutes, then carry out shutdown process, and point out Target moisture to reach, and green alarm lamp is long bright;
7th step: under grain moisture on-line detector 16 wait state, carries out manual measurement moisture, and under sampling sufficient situation, measuring process continues five minutes; Dry run to be recycled terminates, and drying machine automatically reverts to halted state;
8th step: manually opened discharge mode, discharge EGR 15 and enter discharge state, dried cereal is discharged by bottom, and discharge terminates to shut down.
Large output low temperature circulating grain products drying equipment each principal organ course of work order is as follows:
| Title | Air-supply | Charging | Circulation | Dry | Discharge |
| Pressure fan 6 | 2 | 2 | 2 | 2 | 3 |
| Elevator 3 | 3 | 3 | 3 | 4 | |
| Even tossed device 14 | 4 | 4 | 4 | 5 | |
| Grain discharging section drive unit 25 | 5 | 5 | 6 | ||
| Cold wind adjusting device 10(2) | 1 | 1 | 1 | 6 | 2 |
| Discharge EGR 15 | 1 | ||||
| Hot blast adjusting device 9 | 1 | ||||
| The online Moisture Meter 16 of cereal | OFF | OFF | ON | ON | ON |
Cereal motion process of the present invention describes as follows:
As depicted in figs. 1 and 2, cereal to be dried enters elevator 3 by feed hopper 13, cereal enters pneumatic separation device 12 through elevator head 26 outlet, in the operation process that the winnowing pan 29 of elevator head 26 from top to bottom turns to, cereal is shed enters pneumatic separation device 12, utilize the negative pressure that pressure fan 6 pairs of pneumatic separation device 12 inside are formed, pneumatic separation device 12 pairs of cereal are shed the impurity kicked up in process and are entered air exhaust passage 5 via dust removing tube 34, finally discharge body and enter dust storage chamber.
Cereal through removal of impurities enters even tossed device 14 along elephant trunk 28, under the centrifugal action of even tossed device 14, cereal is shed in the body of drying machine body 1 uniformly, the cereal abundance of each point can be balanced voluntarily along with rotation, the blade completely measuring warning device 19 when the top of the automatic control feed entrance point being arranged on the top section of storing 23 top touches cereal when can not rotate, top is completely measured warning device 19 and is sent signal, by the design of electric control loop, this signal can make material level indicator lamp flicker corresponding on switch board 22, and send sound and light alarm, represent that charging is full, switch board 22 sends and stops charging instruction, charging terminates.
When cereal material level to be dried does not reach X material level device, X material level device sends signal, by the design of electric control loop, this signal can make material level indicator lamp flicker corresponding on switch board 22, and sending sound and light alarm, switch board 22 sends instruction, and heat absorbing device 11 runs, until the air inlet of air inlet ventilation pipe 7 layers is blocked completely by heat absorbing device 11, enter the cereal cyclic drying stage.
Cereal is under gravity successively by the section of storing 23, the drying section of storing 24, grain discharging section 25, because air inlet ventilation pipe 7 layers and air draft ventilation duct about 8 layers are dislocatedly distributed, when cereal is by the drying section of storing 24, the natural constantly changing location of cereal, balanced flows downward, and local cereal-granules can not be caused to pile up, and can not produce local cereal and hurtle down, therefore ensure that grain moisture is even, reduces cereal percentage of damage.Cereal flows through the discharge EGR 15 below grain discharging section 25, detect through grain moisture on-line detector 16, cereal miss the mark moisture, the recurrent state of cereal through discharging EGR 15 enters elevator 3 and proceeds drying cycles, detect through grain moisture on-line detector 16, cereal reaches Target moisture, and the discharge state of cereal through discharging EGR 15 discharges drying machine, completes cereal cyclic drying process.When the blockage alarming device 21 being arranged on grain discharging section 25 can not rotate, blockage alarming device 21 transmits " putty " signal to switch board 22, and switch board 22 sends signal for "cut motor" immediately, investigation putty reason.
In row's grain process, when material level is down to the installation site of low material level warning device 20, pressure fan 6 quits work, the impurity suspended because of suction function, dust depart from dryer inner body structure surface under gravity, drop in inner bottom surface, achieve the function of the inner impurity of Automatic clearance under prosthetic participation condition, dust, save labor cost, improve working environment.
Hot blast motion process describes as follows:
The hot blast mixed with cold wind adjusting device 10 through hot blast adjusting device 9 enters hot-air channel 4, under the suction function of pressure fan 6, hot blast enters air inlet ventilation pipe 7, hot blast lateral flow, because air inlet ventilation pipe 7 opposite side is closed, hot blast is forced to move downward through grain layer, air inlet ventilation pipe 7 layers and air draft ventilation duct 8 faulted layer are arranged, through the hot blast of grain layer, enter air exhaust passage 5 through air draft ventilation duct 8, discharge body finally by pressure fan 6 and enter dust storage chamber.
As shown in figure 12, the installation method of the utilization of the present embodiment large output low temperature circulating grain products drying equipment: comprise the steps:
The first step: equipment preparation: be divided into from top to bottom by equipment and organize module more, is respectively the first modules A, the second module B, the 3rd module C, four module D, the 5th module E, the 6th module F and the 7th module G;
First modules A is bottom stand 2 and bottom aggregate bin;
Second module B, multiple 3rd module C, four module D, the 5th module E superposition composition drying machine body 1; Second module B is drying machine body 1 lower component, and it comprises grain discharging section 25, the air inlet ventilation pipe 7 that assembled by side plate and air draft ventilation duct 8, and is positioned at air exhaust passage section and the hot-air channel section of both sides; Multiple 3rd module C is assembled into parts in drying machine body 1, and the structure of the 3rd module C is: comprise the air inlet ventilation pipe 7 and air draft ventilation duct 8 that are assembled by side plate and the air exhaust passage section being positioned at its both sides and hot-air channel section, be positioned at elevator 3 interlude of air exhaust passage section; Four module D is the upper element of drying machine body 1, and its structure is identical with the 3rd module C; 5th module E is the cover plate assembly of drying machine body 1, and it comprises part four module D and cover plate, is assembled by side plate;
6th module F comprises pneumatic separation device 12, evenly tossed device 14 and elevator 3 top section;
7th module G is elevator 3 bottom stage;
Second step: use horizontal measuring instrument to find Horizon accurately, according to the size of bottom stand 2, utilizes four anchor points of tape measure and bottom, scriber location stand 2;
3rd step: fixed by bottom stand 2 with foundation bolt, completes the installment work of whole stand, is fixed on bottom stand 2 by bottom aggregate bin by crane, completes the installation of the first modules A, has been assisted by fork truck in artificial and factory;
4th step: drive division, ventilation duct, elevator 3 interlude and side plate are completed assembling in early stage by workman on the ground, then be arranged on bottom stand 2 under crane is auxiliary, the grain discharging section 25 of the second module B is connected with bottom aggregate bin, completes the installation of the second module B;
5th step: the installation procedure of the 3rd module C, four module D, the 5th module E adopts method identical in the 4th step, successively each module is completed respective assembling on the ground, then multiple 3rd module C is arranged on the second module B successively, again four module D is fixed on the 3rd module C top, finally the 5th module E is fixed on four module D top, junction between modules is fastened by bolts in channel interior, namely completes the installation of drying machine body 1; After modules assembling, its respective air exhaust passage section and hot-air channel section form through air exhaust passage 5 and hot-air channel 4;
6th step: the 6th module F is arranged on drying machine body 1 top by crane;
7th step: the 7th module G is arranged on elevator 3 bottom by fork truck.
Equipment, in order to easy for installation, carried out modularization installation, greatly improves installation effectiveness by the present invention.
Of the present inventionly assemble air inlet ventilation pipe 7 and air draft ventilation duct 8 by side plate, its mounting means is prior art, laterally with is longitudinally staggered installation of by side plate, thus forms air inlet ventilation pipe 7 and air draft ventilation duct 8.
The present invention when mounted, in the installation process of whole high-altitude, the workman being positioned at high-altitude stays in mounted device interior all the time, a workman is positioned on the tie-strut of hot-air channel 4 inside, a workman is positioned at air exhaust passage 4(elevator 3 side) on inner tie-strut, when next installation kit lifting is to installation site, the joint bolt of upper and lower two-layer installation kit only need be fixed by workman.
When this mounting means avoids top work high above the ground, workman needs to roll over to the risk of device external, ensures the life security of workman, avoids the generation of site operation accident.Ground installment work and high-altitude installation work are carried out simultaneously, shorten the site operation duration, and ground is installed also convenient, fast.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention, see claim, within protection scope of the present invention, can do any type of amendment.
Claims (2)
1. utilize a drying means for large output low temperature circulating grain products drying equipment, it is characterized in that:
The structure of large output low temperature circulating grain products drying equipment is: comprise bottom stand (2), described bottom stand (2) is provided with drying machine body (1), the top of described drying machine body (1) is provided with the hot blast adjusting device (9) and cold wind adjusting device (10) that are connected with hot-air channel (4), three parts are divided into from top to bottom in described drying machine body (1), top is the section of storing (23), middle part is the drying section of storing (24), bottom is grain discharging section (25), described grain discharging section (25) is positioned at above bottom stand (2), described grain discharging section (25) is provided with blockage alarming device (21) and grain temperature sensing device (18), the described section of storing (23) is provided with top and completely measures warning device (19), the both sides being positioned at drying machine body (1) are respectively arranged with hot-air channel (4) and air exhaust passage (5), the import department of described hot-air channel (4) is provided with hot blast temperature sensing device (17), described air exhaust passage (5) inside is provided with elevator (3), described elevator (3) runs through whole air exhaust passage (5), elevator head (26) is installed on the top of air exhaust passage (5), elevator afterbody (27) is installed on the bottom of air exhaust passage (5), and at elevator afterbody (27) place, feed hopper (13) is installed, drying machine body (1) bottom connects discharges EGR (15), be positioned at discharge EGR (15) place and be provided with grain moisture on-line detector (16), the outside being positioned at air exhaust passage (5) is also provided with the pressure fan (6) be communicated with it, be positioned at elevator head (26) place and be also provided with pneumatic separation device (12), the exit of pneumatic separation device (12) connects even tossed device (14), and described even tossed device (14) is positioned at the top of drying machine body (1), the drying section of storing (24) being positioned at drying machine body (1) is provided with air inlet ventilation pipe (7) and air draft ventilation duct (8), and described air inlet ventilation pipe (7) and air draft ventilation duct (8) are between the upper and lower every being crisscross arranged, switch board (22) is installed in stand (2) bottom, described bottom,
Its drying means comprises the steps:
The first step: first start power supply, in switch board (22) upper setting hot blast temperature desired value, grain temperature limit value, moisture target value;
Second step: open cold wind adjusting device (10), opens pressure fan (6), enters air supply pattern;
3rd step: setting hot blast temperature and grain temperature, in drying regime, the measured value of hot blast temperature sensing device (17) and grain temperature sensing device (18) can compare currency and setting value automatically, the adjustment of cold wind adjusting device (10) open degree is once carried out in action in every three minutes, adjustment hot blast temperature;
4th step: elevator (3), evenly tossed device (14) are started working, and enter feed mode, treat that warning device (19) outgoing signal is completely measured at top, charging terminates;
5th step: enter cyclic drying pattern, in recurrent state, grain moisture on-line detector (16) measures a moisture in every 30 minutes, record moisture data lower than Target moisture, then carry out shutdown process, and point out Target moisture to reach, green alarm lamp is long bright;
6th step: in drying regime, measures a moisture, records double moisture data lower than Target moisture for every ten minutes, then carry out shutdown process, and point out Target moisture to reach, and green alarm lamp is long bright;
7th step: under grain moisture on-line detector (16) wait state, carries out manual measurement moisture, and under sampling sufficient situation, measuring process continues five minutes; Dry run to be recycled terminates, and drying machine automatically reverts to halted state;
8th step: cereal is discharged, manually opened discharge mode, discharge EGR (15) and enter discharge state, dried cereal is discharged by bottom, and discharge terminates to shut down.
2. one kind utilizes the installation method of large output low temperature circulating grain products drying equipment: it is characterized in that:
The structure of large output low temperature circulating grain products drying equipment is: comprise bottom stand (2), described bottom stand (2) is provided with drying machine body (1), the top of described drying machine body (1) is provided with the hot blast adjusting device (9) and cold wind adjusting device (10) that are connected with hot-air channel (4), three parts are divided into from top to bottom in described drying machine body (1), top is the section of storing (23), middle part is the drying section of storing (24), bottom is grain discharging section (25), described grain discharging section (25) is positioned at above bottom stand (2), described grain discharging section (25) is provided with blockage alarming device (21) and grain temperature sensing device (18), the described section of storing (23) is provided with top and completely measures warning device (19), the both sides being positioned at drying machine body (1) are respectively arranged with hot-air channel (4) and air exhaust passage (5), the import department of described hot-air channel (4) is provided with hot blast temperature sensing device (17), described air exhaust passage (5) inside is provided with elevator (3), described elevator (3) runs through whole air exhaust passage (5), elevator head (26) is installed on the top of air exhaust passage (5), elevator afterbody (27) is installed on the bottom of air exhaust passage (5), and at elevator afterbody (27) place, feed hopper (13) is installed, drying machine body (1) bottom connects discharges EGR (15), be positioned at discharge EGR (15) place and be provided with grain moisture on-line detector (16), the outside being positioned at air exhaust passage (5) is also provided with the pressure fan (6) be communicated with it, be positioned at elevator head (26) place and be also provided with pneumatic separation device (12), the exit of pneumatic separation device (12) connects even tossed device (14), and described even tossed device (14) is positioned at the top of drying machine body (1), the drying section of storing (24) being positioned at drying machine body (1) is provided with air inlet ventilation pipe (7) and air draft ventilation duct (8), and described air inlet ventilation pipe (7) and air draft ventilation duct (8) are between the upper and lower every being crisscross arranged, switch board (22) is installed in stand (2) bottom, described bottom,
Its installation method comprises the steps:
The first step: equipment preparation: be divided into from top to bottom by equipment and organize module more, is respectively the first module (A), the second module (B), the 3rd module (C), four module (D), the 5th module (E), the 6th module (F) and the 7th module (G);
Described first module (A) is bottom stand (2) and bottom aggregate bin;
Described second module (B), multiple 3rd module (C), four module (D), the 5th module (E) superposition composition drying machine body (1); Described second module (B) is drying machine body (1) lower component, and it comprises grain discharging section (25), the air inlet ventilation pipe (7) that assembled by side plate and air draft ventilation duct (8), and is positioned at air exhaust passage section and the hot-air channel section of both sides; Multiple 3rd module (C) is assembled into parts in drying machine body (1), and the structure of described 3rd module (C) is: comprise the air inlet ventilation pipe (7) and air draft ventilation duct (8) that are assembled by side plate and the air exhaust passage section being positioned at its both sides and hot-air channel section, be positioned at elevator (3) interlude of air exhaust passage section; The upper element that described four module (D) is drying machine body (1), its structure is identical with the 3rd module (C); The cover plate assembly that described 5th module (E) is drying machine body (1), it comprises part four module (D) and cover plate, is assembled by side plate;
Described 6th module (F) comprises pneumatic separation device (12), evenly tossed device (14) and elevator (3) top section;
Described 7th module (G) is elevator (3) bottom stage;
Second step: use horizontal measuring instrument to find Horizon accurately, according to the size of bottom stand (2), utilizes four anchor points of tape measure and scriber bottom stand, location (2);
3rd step: fixed by bottom stand (2) with foundation bolt, complete the installment work of whole stand, be fixed on bottom stand (2) by bottom aggregate bin, complete the installation of the first module (A) by crane, has been assisted by fork truck in artificial and factory;
4th step: drive division, ventilation duct, elevator (3) interlude and side plate are completed assembling in early stage by workman on the ground, then be arranged on bottom stand (2) under crane is auxiliary, the grain discharging section of the second module (B) (25) and bottom aggregate bin are connected, complete the installation of the second module (B);
5th step: the installation procedure of the 3rd module (C), four module (D), the 5th module (E) adopts method identical in the 4th step, successively each module is completed respective assembling on the ground, then multiple 3rd module (C) is arranged in the second module (B) successively, again four module (D) is fixed on the 3rd module (C) top, finally the 5th module (E) is fixed on four module (D) top, junction between modules is fastened by bolts in channel interior, namely completes the installation of drying machine body (1); After modules assembling, its respective air exhaust passage section and hot-air channel section form through air exhaust passage (5) and hot-air channel (4);
6th step: the 6th module (F) is arranged on drying machine body (1) top by crane;
7th step: the 7th module (G) is arranged on elevator (3) bottom by fork truck.
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