CN103521452B - A kind of environment-friendly type compound grain cleaner - Google Patents
A kind of environment-friendly type compound grain cleaner Download PDFInfo
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- CN103521452B CN103521452B CN201310483371.5A CN201310483371A CN103521452B CN 103521452 B CN103521452 B CN 103521452B CN 201310483371 A CN201310483371 A CN 201310483371A CN 103521452 B CN103521452 B CN 103521452B
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 27
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Abstract
The invention discloses a kind of environment-friendly type compound grain cleaner, comprise multi-layer cylinder sieve, negative pressure dust removal of pneumatic separation device, organic assorted treating apparatus and bag-type dust collector, bag-type dust collector comprises blower fan and sack cleaner, negative pressure dust removal of pneumatic separation device is arranged on grain charging aperture and grain discharge outlet, and negative-pressure air duct connects with the inlet ductwork of sack cleaner.Environment-friendly type compound grain cleaner of the present invention has the features such as grain cleaning efficiency grain that is high, that clean gained is clean, airborne dust is few, environmental protection, and can clear up organic light mixing, and guarantees the security of stored grain.
Description
Technical field
The present invention relates to grain processing field, the environment-friendly type grain cleaner that especially a kind of screen drum and selection by winnowing combine.
Background technology
The cereal crops such as wheat, corn, cereal are before warehouse entry storage, need to clean grain, assorted greatly containing the stone, stalk etc. that are greater than grain in usual grain, and it is little assorted to be less than the rubble of grain, broken grain etc., but also have dust in addition and mix or gently mix with the organic of the basically identical lighter in weight of grain size, such as mouldy grain, the grain etc. of damaging by worms.By cleaner, above-mentioned impurity is removed from raw material, obtain clean grain finished product, facilitate following process, the hidden danger such as when also can prevent from storing, grain is inflammable, grain goes mouldy, damage by worms.
Application number disclosed in 2002 is the Chinese utility model patent " novel cylindrical grain cleaner " of 02232451.8, describe a kind of dressing machine of screening of rolling based on circular screen drum, comprise interior screen drum, middle screen drum and outer screen drum, three screen drums are low early and high after in aggregates on screen drum frame with an inclination angle arranged in co-axial alignment, the rear end of inclination screen drum relies on outer screen drum to be fixed on backing roll, front end drives screen drum axle to rotate by transmission mechanism, realizes the unitary rotation of screen drum.Clean in grain process at drum sieve, the mesh being circumferentially evenly equipped with different scale of different screen drums, thus realize the cleaning of the impurity of different size size, grain is entered by interior screen drum, and then is flowed out by outer screen drum, grain phase mutual friction under the rolling effect of cylinder, the dust of grain surface adhesion is dropped in rolling, and with other little assorted together with by the little assorted outlet drain of outer screen drum outer setting, to be assortedly then separated by inner core greatly, the impurities outlet arranged by screen drum front end is discharged.
This mode Problems existing of cleaning have employed single screen drum to clean mode, not thorough to eliminating of dust, and little assorted and dust is directly disposed in air in addition, easily causes airborne dust, causes environmental pollution.In follow-up improvement opportunity, also compound that screen drum combines with selection by winnowing cleans mode to have other equipment have employed, such as in the process of grain vertical drop, add horizontal negative pressure wind and carry out dedusting, but because selection by winnowing patten's design is unreasonable, cause dust removing effects all bad, and easily cause larger environmental pollution.In addition in the same size with grain but that proportion is lighter organic light mixing then is difficult to remove, brings hidden danger to foodstuff preservation.
Summary of the invention
The present invention proposes a kind of environment-friendly type compound grain and clean scheme, adopt selection by winnowing and screen the mode combined, there is the features such as grain cleaning efficiency grain that is high, that clean gained is clean, airborne dust is few, environmental protection.
Concrete scheme of the present invention is:
A kind of environment-friendly type compound grain cleaner, comprise feed hopper, discharge bucket, impurity collecting box and low early and high after many coaxial circles shaft screens be obliquely installed, multi-layer cylinder sieve can rotate around the central axis of cylinder, pending grain enters screen drum in drum sieve by feed hopper, the impurity be separated by drum sieve enters impurity collecting box, grain after process is exported by discharge bucket through the outer screen drum of drum sieve, its special character is: also comprise the bag-type dust collector connected by pipeline, bag-type dust collector comprises blower fan and sack cleaner, the import of described blower fan connects with the export pipeline of sack cleaner, described grain charging aperture and grain discharge outlet are provided with negative pressure dust removal of pneumatic separation device, and the negative-pressure air duct of described negative pressure dust removal of pneumatic separation device connects with the inlet ductwork of sack cleaner.
In above-mentioned environment-friendly type compound grain cleaner, the negative pressure dust removal of pneumatic separation device of grain charging aperture comprises receiving hopper, negative-pressure air duct, receiving hopper contains an inclination headwall, the outlet of feed hopper is just to the upper edge of described inclination headwall, the grain that feed hopper flows out flows downward to interior screen drum along described inclination headwall, have air inlet at the middle part of described inclination headwall, described negative-pressure air duct is vertically set on above inclination headwall just to the position of air inlet.
In above-mentioned environment-friendly type compound grain cleaner, the negative pressure dust removal of pneumatic separation device of grain discharging opening comprises negative-pressure air duct, described discharge bucket contains an inclination headwall, the grain that outer screen drum flows out flows downward along described inclination headwall, have air inlet at the middle part of inclination headwall, described negative-pressure air duct is vertically set on above inclination headwall just to the position of air inlet.
In above-mentioned environment-friendly type compound grain cleaner, the front portion of drum sieve is provided with blower, the outlet of described blower is arranged on the position that between interior screen drum and outer screen drum, in just external screen drum, grain flows out, and the blowing direction of described blower is consistent with the incline direction of screen drum; Described blower connects with the outlet of blower fan, and the pipeline between described blower and blower fan is provided with damper.
In above-mentioned environment-friendly type compound grain cleaner, the frame of outer screen drum rear end is provided with deep bead, just to the outlet of blower in the middle part of described deep bead, the below of deep bead is provided with light assorted collecting box; The top of deep bead is provided with exhaust duct, and described exhaust duct connects with the inlet ductwork of sack cleaner.
In above-mentioned environment-friendly type compound grain cleaner, gently assorted, assorted greatly and little mixing is discharged by the wind closing type discharge auger of correspondence.
In above-mentioned environment-friendly type compound grain cleaner, grain cleaner entirety is closed structure, only leaves air inlet, air outlet, food import and grain-export.
In above-mentioned environment-friendly type compound grain cleaner, the pipeline of fan outlet is divided into two, and a road connects blower after damper, and another road is directly discharged.
In above-mentioned environment-friendly type compound grain cleaner, sack cleaner is pulse blowing type sack cleaner, the pipeline portion of described fan outlet is three, the first via is directly discharged, second tunnel connects blower after damper, gas, then after presser unit, is inputted the high pressure gas bag into sack cleaner self by the 3rd tunnel.
In above-mentioned environment-friendly type compound grain cleaner, on outer screen drum, the yardstick of mesh and/or density increase from front to back successively along screen drum axis direction.
The Advantageous Effects that the present invention has is as follows:
1, traditional cylinder sieve-type grain cleaner combines with sack cleaner by the present invention, clean air is only had just directly to discharge, overcome the deficiency that dust is directly carried out airborne release by traditional cleaner, improve working environment, reduce the harm to staff's health, there is the feature of environmental protection; The present invention simultaneously can distinguish centralized collection packing to large assorted, little assorted, the light assorted and dust in grain, reduces manual labor amount, increases work efficiency.
2, the present invention is all provided with negative pressure dust removal of pneumatic separation device at the charging aperture of grain cleaner and discharging opening, ensure that the cleanliness factor exporting grain, and does not cause airborne dust; The negative pressure dust removal of pneumatic separation device adopted takes full advantage of the immixture of negative-pressure sucking and grain gravity, and the little and dust of high, the required negative-pressure sucking of good dedusting effect, operating efficiency is all sucked in sack cleaner by negative pressure, reduces the pollution to surrounding environment.
3, the present invention is provided with blower in the front end of drum sieve, drum sieve is difficult to that be separated, identical with grain size light mixing remove, improve the output quality of grain, reduce the risk of going mouldy of stored grain, improve the security that grain is preserved, and this is gently mixed and directly can be used as poultry and livestock feed, reduces waste.
4, the present invention adopts wind closing type discharge auger to discharge to the impurity in impurity collecting box, avoids airborne dust, reduces the pollution to working environment.
5, the fan outlet pipeline of bag-type dust collector of the present invention adopts the mode of one-to-two or a point three, has carried out secondary utilization, simplify the structure of cleaner, reduce production cost air-flow.
6, grain cleaner entirety of the present invention is closed structure, only leaves air inlet, air outlet, food import and grain-export, reduces grain and cleans pollution to surrounding enviroment in work, have the feature of environment protection clean.
7, the mesh of the present invention China and foreign countries screen drum is nonuniform mutation operator, adapts to the content of grain impurity in screen drum from front to back, improves efficiency.
Accompanying drawing illustrates:
Fig. 1 is conventional air classification dust-cleaning principle schematic diagram;
Fig. 2 is efficient dust removal of pneumatic separation principle schematic of the present invention;
Fig. 3 is environment-friendly type compound grain cleaner operation principle schematic diagram of the present invention;
Fig. 4 is the operation principle schematic diagram of bag-type dust collector of the present invention;
Fig. 5 is the operation principle schematic diagram of pulse blowing type bag-type dust collector of the present invention;
Fig. 6 is the structural representation of the outer screen drum of the present invention;
Fig. 7 is the side view of Fig. 6 of the present invention China and foreign countries screen drum;
Reference numeral is as follows:
1-feed hopper; 2-grain; 3-negative-pressure air duct; 4-receiving hopper; 5-air inlet; 6-air-flow; 11-interior screen drum; 12-outer screen drum; 13-discharge bucket; 14-little assorted collecting box; 15-discharge auger; 16-2# negative-pressure air duct; 17-blower; 18-deep bead; 19-3# exhaust duct; 20-negative pressure house steward; 21-sack cleaner; 22-presser unit; 23-blower fan; 24-discharge duct; 25-damper; 31-backing roll; 32-front support stand; The rotating shaft of 33-screen drum; 34-mesh.
Detailed description of the invention
The present invention improves on the basis of existing cylinder sieve-type grain cleaner, and main content of improving comprises following a few part:
One, dust removal of pneumatic separation unit
Traditional dust removal of pneumatic separation all adopts grain Vertical Free to fall, the dust removal port of pneumatic separator is just to the grain fallen, as shown in Figure 1, grain 2 free-falling in feed hopper 1, in the direction fallen perpendicular to grain, be provided with negative-pressure air duct 3, the dust in grain is siphoned away, just air inlet 5 is provided with to the position of negative-pressure air duct at feed hopper 1.This method is not thorough because the barrier effect in grain whereabouts causes dust to be cleared up.
Dust removal of pneumatic separation device of the present invention is as shown in Figure 2: the outlet of feed hopper 1 is flat, grain 2 is routed in a thin-layered way on the inclination headwall of receiving hopper 4, the centre of inclination headwall is provided with air inlet 5, negative-pressure air duct 3 is provided with directly over air inlet 5, the below of grain 2 first negative-pressure air duct 3 has become the arrangement of uniform thin layer, under the effect of negative-pressure sucking and grain gravity, eddy current can be formed on inclination headwall, and cause the rolling of thin layer grain, the effect of clean dust can be reached like this, simultaneously due to suction function, a part of dust in feed hopper 1, will with air-flow inspiration negative-pressure air duct, therefore can when at very little wind-force, realize clean dedusting, and dust is all siphoned away to dust collecting installation by negative-pressure air duct 3, reduce the pollution to environment.
As shown in Figure 2, air inlet is some the apertures that cloth becomes face battle array, and wherein the yardstick of aperture is less than grain, and the inclined-plane of inclination headwall and horizontal direction angle are 45 °-75 °, and preferred angle is 60 °.
Two, mode cleaned by combined type grain
As shown in Figure 3, compound grain cleaner of the present invention mainly comprises screening unit, dust removal of pneumatic separation unit, dry organic assorted removal unit and gas purification units.
Wherein screen unit and comprise the double-deck screen drum or multilayer screen drum that rotate around central shaft, comprise interior screen drum 11 and outer screen drum 12, the mesh of interior screen drum 11 is greater than the size of grain 2, is mainly used in removing being greater than mixing greatly in grain 2, such as stalk, stone etc.; The mesh of outer screen drum 12 is less than the size of grain, is mainly used in removing being less than the little assorted of grain, such as rubble, grain chip etc.Interior screen drum 11 and outer screen drum 12 are coaxially arranged, and low early and high after with an inclination angle arranged in co-axial alignment on screen drum frame, the rear end of inclination screen drum is fixed on rotating backing roll, front end drives screen drum rotating shaft 33 by transmission mechanism, realize the high-speed rotation of screen drum, and then the cleaning reached the large small impurities of different size, the large assorted outlet that the large assorted and grain that cleaning obtains then is arranged by screen drum front end respectively and product outlet enter in respective gathering-device, the little assorted little assorted collecting box then entering outer screen drum 12 bottom and arrange.The assorted greatly and little assorted wind discharge auger that closes by correspondence is discharged.
For simplicity, this description does not provide the concrete mechanism section of above-mentioned common practise, just depict the block diagram such as interior screen drum 11 and outer screen drum 12, concrete structure can be the Chinese utility model patent " novel cylindrical grain cleaner " of 02232451.8 see application number.
After first entering interior screen drum 11 containing impurity grain, under the rotation of screen drum, large mixing is stayed in interior screen drum 11, and enter in the large assorted collecting box of screen drum front end setting along inclination angle, in remaining grain and the little assorted outer screen drum 12 entered by the mesh of interior screen drum 11, its medium and small mixing then enters in little assorted collecting box 14 along the mesh of outer screen drum 12, and grain 2 then enters grain discharge bucket 13 along the inclination angle of outer screen drum 12.Little assorted collecting box 14 is connected with wind closing type discharge auger 15, can avoid the environmental pollution caused in little assorted discharge like this.
Dust removal of pneumatic separation unit arranges the inlet and outlet of screening unit respectively, as shown in Figure 3, be mixed with large assorted, little assorted, the pending grain 2 of dust is transported to feed hopper 1 by conveyer belt, after the flat outlet of feed hopper 1, be laid on the inclination headwall of receiving hopper 4, the middle part of inclination headwall is provided with air inlet 5, 1# negative-pressure air duct 3 is provided with directly over air inlet 5, grain 2 is under the effect of negative-pressure sucking and grain gravity, eddy current can be formed, and cause the rolling of thin layer grain, dust is driven to roll and be inhaled into in 1# negative-pressure air duct 3, the grain eliminating dust then enters in interior screen drum 11 and carries out size selection.
On the grain discharge bucket 13 of screen drum 12 equally outside, also dust removal of pneumatic separation unit is provided with, its principle is consistent with the principle of import, discharge bucket 13 is containing an inclination headwall, the grain exported through outer screen drum 12 is laid on the sloped sidewall of discharge bucket 13 with thin layer, have air inlet at the middle part of inclination headwall, negative-pressure air duct 16 is vertically set on above inclination headwall just to the position of air inlet.
Dust removal of pneumatic separation unit is set respectively in the outlet of screen drum and entrance and further increases dust removing effects, and worked by negative pressure, dust is siphoned away, greatly can reduce the pollution to environment, reduce labor strength, pneumatic separation device of the present invention takes full advantage of the immixture of negative-pressure sucking and grain gravity simultaneously, little to the requirement of wind-force, and good dedusting effect, operating efficiency are high.
Three, organicly reason is lived together
The object of organic assorted removal unit of drying is in the same size to some and grain, but the impurity that density is lighter again processes, device mainly comprises blower 17, exhaust duct 19, deep bead 18 and collecting box of gently mixing, the outlet of blower is arranged between interior screen drum 11 and outer screen drum 12, grain discharge bucket 13 place, and near the bottom of outer screen drum 12, the blowing direction of blower 17 is consistent with the incline direction of screen drum; When the grain screened flows into discharge bucket 13 through the inclination angle of outer screen drum 12, under the airflow function of blower 13, organic the mixing of lightweight is blown afloat, and it is reverse by the rear end of blowing to outer screen drum 12 along the inclination angle of outer screen drum 12, the frame of outer screen drum 12 rear end is provided with deep bead 18, and light assorted collision, to deep bead 18, relies on gravity fall, enter in light assorted collecting box, and collect auger discharge by the wind closing type of correspondence; The 3# exhaust duct 19 that blowing air-flow is then arranged above deep bead 18 is discharged.
But organic assorted generally include with grain yardstick basically identical but than the impurity of grain light as the grain that goes mouldy, stalk, damaged by worms or irregular grain, and through dust removing units, only containing a small amount of dust, directly can be used as poultry, feed stripped.In addition by light the mixing of going mouldy, damaging by worms is removed, reduce the risk of going mouldy of stored grain, improve the security that grain is preserved.
Four, bag-type dust collector
As shown in Figure 3, enter the negative pressure house steward 20 arranged above cleaner after 1# negative-pressure air duct 3,2# negative-pressure air duct 16 and 3# exhaust duct 19 gather and discharge, and enter gas purification units as shown in Figure 4.
Gas purification units comprises sack cleaner 21, blower fan 23 and connecting pipeline.Sack cleaner 21 is air cleaners that the industrial circles such as a kind of power plant, steel mill are conventional, and its operation principle is after many non-woven bag attract dust of dust laden air through arranging in sack cleaner, then discharges through outlet purification.As shown in Figure 4, negative pressure house steward 20 in the import of sack cleaner 21 and Fig. 3 is connected, the outlet of sack cleaner 21 and the input of blower fan 23 are connected, blower fan 23 output is divided into two, purification rear section air venting is directly entered air by one tunnel feed channel 24 of running in, the blower 17 in Fig. 3 is then accessed on another road through damper 25, like this, the dirty air containing impurity such as dusts flowed into by negative pressure house steward 20 will be purified by sack cleaner 21, a part is used to light assorted blowing process in grain, another part is then directly discharged in air, the reason of such setting is because the stream pressure of fan outlet is much larger than the stream pressure of gently living together reason, therefore a part of cleaned air is directly discharged, before this external blower 17, damper 25 is set, be convenient to the adjustment of stream pressure in producing, and select suitable air door parameter according to the parameter of grain by debugging test repeatedly, guarantee that the air-flow of blower 17 just blows afloat gently assorted, and have and be unlikely to finished product grain to blow away.
The sack cleaner 21 that above gas purification units adopts is traditional mechanical rapping cleaning dust modes, when dust is long-pending to be abound with bag time, by the dust removing on cloth bag, the dust collection bag of bottom can be dropped down onto, realizes long dedusting work by the mode of mechanical vibrator; And for the sack cleaner of pulse jetting deashing mode work, need during work to provide a high-pressure gas bag to sack cleaner, when dust is long-pending to be abound with bag time, the magnetic valve of pulsed operation opens high-pressure gas packet switch with cycle regular hour, gases at high pressure then blow cloth bag in a pulsed fashion, the dust of cloth bag is shaken off, drops down onto the dust collection bag of bottom, realize long dedusting work.
For the sack cleaner of pulse jetting deashing mode work, gas purification units can adopt the working method as Fig. 5.The air-flow exported from blower fan 23 is divided into three tunnels, purification rear section air venting is directly entered air by first via feed channel 24 of running in, the blower 17 in Fig. 3 is accessed on second tunnel through damper 25,3rd tunnel is then after presser unit 22, gas is inputted the high pressure gas bag into sack cleaner self, for the dedusting of sack cleaner.Why the 3rd road air-flow will be pressurizeed, be that the air pressure owing to blowing grey high pressure gas bag used requires higher, and only reaching certain pressure could remove in a pulsed fashion by the dust that sack cleaner adsorbs.Presser unit 22 can adopt booster fan or air compressor machine to realize.Like this, the air of discharge is the clean air through dedusting, maintains the cleaning of working environment, in addition, by utilizing the secondary of discharging air-flow, simplifying the structure of cleaner, reducing production cost.
Grain cleaner entirety of the present invention is closed structure, only has air inlet, air outlet, grain imports and exports and the outlet of impurity, can prevent the environmental pollution that in watering and separation procedure, airborne dust causes.
Five, non-homogeneous mesh
As shown in Figure 6 and Figure 7, outer screen drum unit comprises rotating shaft 33, front support stand 32, backing roll 31, outer screen drum 12, rotating shaft 33 is coaxially fixed by several the front support stands distributed at an angle 32 and outer screen drum 12, the rear end of outer screen drum 12 cylindrical shell is then fixed on 3 uniform rotatable backing rolls 31, in figure for the sake of simplicity, eliminate interior screen drum 11, transmission mechanism drive rotating shaft 33 and outer screen drum 12, interior screen drum 11 rotates with angular speed, realize grain by Scale separation.
In order to enhance productivity, mesh 34 on outer screen drum 12 is in non-uniform arrangement, be divided into I from front to back, II, III section, in every section, the density of mesh 34 is consistent with distributed number, but the sieve size of the sieve size < III section of the sieve size < of I section II section, this is mainly because grain is from rear to front motion and magazins' layout, impurity content reduces gradually, when originally impurity content is more, macropore is adopted to be separated more effective, afterwards along with the minimizing of impurity, adopt aperture to be separated can meet the demands, adopt this non-uniform structure can guarantee that efficiency is higher.As shown in Figure 4, the little assorted collecting box 14 that each different section of outer screen drum 12 is corresponding different, collects respectively.
As a kind of preferred embodiment, the yardstick of mesh 34 also can be adopted consistent, and just the density of mesh 34 from small to large, in non-uniform setting, so also can play similar effect from front to back.Certainly, the mode that density and yardstick also can be adopted simultaneously to increase from front to back.
The present invention is by cleaning mode, organicly living together the improvement such as reason, the process of bag-type dust formula dust, non-homogeneous mesh to above-mentioned dust removal of pneumatic separation unit, combined type, develop the grain cleaner obtained and there is the features such as cleaning efficiency grain that is high, that clean gained is clean, airborne dust is few, environmental protection, meet the requirement of Modern New agricultural development.
Claims (9)
1. an environment-friendly type compound grain cleaner, comprise feed hopper (1), discharge bucket (13), impurity collecting box (14) and the low early and high after drum sieve be obliquely installed, described drum sieve comprises coaxial setting, and can in central axis rotates screen drum (11) and outer screen drum (12), pending grain (2) enters interior screen drum (11) by feed hopper (1), grain after process is exported by discharge bucket (13) through outer screen drum (12), the impurity be separated enters impurity collecting box (14), it is characterized in that: also comprise the bag-type dust collector connected by pipeline, described bag-type dust collector comprises blower fan (23) and sack cleaner (21), the import of described blower fan (23) connects with the export pipeline of sack cleaner (21), grain charging aperture and grain discharge outlet are provided with negative pressure dust removal of pneumatic separation device, and the negative-pressure air duct (3,16) of described negative pressure dust removal of pneumatic separation device connects with the inlet ductwork of sack cleaner (21),
The negative pressure dust removal of pneumatic separation device of described grain charging aperture comprises receiving hopper (4), negative-pressure air duct (3), described receiving hopper (4) is containing an inclination headwall, the outlet of feed hopper (1) is just to the upper edge of described inclination headwall, the grain (2) that feed hopper (1) flows out flows downward to interior screen drum (11) along described inclination headwall, have air inlet (5) at the middle part of described inclination headwall, described negative-pressure air duct (3) is vertically set on above inclination headwall just to the position of air inlet (5);
The outlet of described feed hopper (1) is flat, is routed to by grain (2) on the inclination headwall of receiving hopper (4) in a thin-layered way; Described air inlet is some the apertures that cloth becomes face battle array, and wherein the yardstick of aperture is less than grain.
2. environment-friendly type compound grain cleaner according to claim 1, it is characterized in that: the negative pressure dust removal of pneumatic separation device of described grain discharging opening comprises negative-pressure air duct (16), described discharge bucket (13) is containing an inclination headwall, the grain that outer screen drum (12) flows out flows downward along described inclination headwall, have air inlet (5) at the middle part of inclination headwall, described negative-pressure air duct (16) is vertically set on above inclination headwall just to the position of air inlet (5).
3. environment-friendly type compound grain cleaner according to claim 1 and 2, it is characterized in that: the front portion of described drum sieve is provided with blower (17), the outlet of described blower (17) is arranged on the position of the just externally interior grain outflow of screen drum (12) between interior screen drum (11) and outer screen drum (12), and the blowing direction of described blower (17) is consistent with the incline direction of screen drum; Described blower (17) connects with the outlet of blower fan (23), and the pipeline between described blower (17) and blower fan (23) is provided with damper (25).
4. environment-friendly type compound grain cleaner according to claim 3, it is characterized in that: the frame of described outer screen drum (12) rear end is provided with deep bead (18), described deep bead (18) middle part is just to the outlet of blower (17), and the below of deep bead (18) is provided with light assorted collecting box; The top of deep bead (18) is provided with exhaust duct (19), and described exhaust duct (19) connects with the inlet ductwork of sack cleaner (21).
5. environment-friendly type compound grain cleaner according to claim 4, is characterized in that: described light assorted, large assorted and little mixing is discharged by the wind closing type discharge auger of correspondence.
6. environment-friendly type compound grain cleaner according to claim 1, is characterized in that: described grain cleaner entirety is closed structure, only leaves air inlet, air outlet, food import and grain-export.
7. environment-friendly type compound grain cleaner according to claim 3, it is characterized in that: the pipeline that described blower fan (23) exports is divided into two, one tunnel connects blower (17) after damper (25), and another road is directly discharged.
8. environment-friendly type compound grain cleaner according to claim 3, it is characterized in that: described sack cleaner (21) is pulse blowing type sack cleaner, the pipeline one dividing into three that described blower fan (23) exports, the first via is directly discharged, second tunnel connects blower (17) after damper (25), gas, then after presser unit (22), is inputted the high pressure gas bag into sack cleaner (21) self by the 3rd tunnel.
9. environment-friendly type compound grain cleaner according to claim 3, is characterized in that: yardstick and/or the density of the upper mesh (34) of described outer screen drum (12) increase from front to back successively along screen drum axis direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310483371.5A CN103521452B (en) | 2013-10-15 | 2013-10-15 | A kind of environment-friendly type compound grain cleaner |
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| CN201310483371.5A CN103521452B (en) | 2013-10-15 | 2013-10-15 | A kind of environment-friendly type compound grain cleaner |
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| CN103521452A CN103521452A (en) | 2014-01-22 |
| CN103521452B true CN103521452B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Denomination of invention: An environmentally friendly composite grain cleaning machine Effective date of registration: 20231213 Granted publication date: 20160120 Pledgee: Shaanxi credit re Company Limited by Guarantee Pledgor: XI'AN XIN GU CORN PRODUCT CO.,LTD. Registration number: Y2023610000765 |