CN203565373U - Cloth bag dust removal device used for grain cleaner - Google Patents

Cloth bag dust removal device used for grain cleaner Download PDF

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Publication number
CN203565373U
CN203565373U CN201320636513.2U CN201320636513U CN203565373U CN 203565373 U CN203565373 U CN 203565373U CN 201320636513 U CN201320636513 U CN 201320636513U CN 203565373 U CN203565373 U CN 203565373U
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grain
cleaner
blower
bag
negative
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杨建华
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Xi'an Segotep Corn Product Co Ltd
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Xi'an Segotep Corn Product Co Ltd
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Abstract

The utility model discloses a cloth bag dust removal device used for a grain cleaner. The cloth bag dust removal device comprises a fan and a cloth bag dust collector, wherein an inlet of the fan is connected with an outlet pipeline of the cloth bag dust collector, a grain inlet and a grain outlet of the grain cleaner are respectively provided with a negative pressure air sieving dust removal device, and a negative pressure air pipe of each negative pressure air sieving dust removal device is connected with an inlet pipeline of the cloth bag dust collector. According to the cloth bag dust removal device, a traditional drum-sieve-type grain cleaner is combined with the cloth bag dust collector, only clean air can be directly exhausted, the defect that dust is directly discharged into atmosphere by the traditional cleaner is overcome, the working environment is improved, and the cloth bag dust removal device has the advantage of being environmentally friendly.

Description

Bag-type dust collector for grain cleaner
Technical field
The utility model relates to grain processing field, especially a kind of environment-friendly type grain cleaner that sack cleaner is processed for dust.
Background technology
The cereal crops such as wheat, corn, cereal are before warehouse entry storage, need to clean grain, conventionally in grain, contain that to be greater than the stone, stalk etc. of grain large assorted, and it is little assorted to be less than the rubble of grain, broken grain etc., in addition also has dust and basically identical with grain size, but lighter organic assorted of weight, such as mouldy grain, the grain of damaging by worms etc.By cleaner, above-mentioned impurity is removed from raw material, obtained clean grain finished product, facilitate following process, the hidden danger such as in the time of also can preventing from storing, grain be inflammable, grain goes mouldy, damage by worms.
The Chinese utility model patent " novel cylindrical grain cleaner " that disclosed application number in 2002 is 02232451.8, introduced a kind of dressing machine that rolls and screen 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.At drum sieve, clean in grain process, on the circumference of different screen drums, be evenly equipped with the mesh of different scale, thereby realize the cleaning of the impurity of different size size, grain is entered by interior screen drum, and then flowed out by outer screen drum, the large assorted impurity outlet being arranged by screen drum front end is discharged.
The problem that this mode of cleaning exists is to have adopted single screen drum to clean mode, thorough not to eliminating of dust, and in addition little mixing is directly disposed in air with dust, easily causes airborne dust, causes environmental pollution.In follow-up improvement technology, also the compound mode of cleaning that has other equipment to adopt screen drum to combine with selection by winnowing, in the process in grain vertical drop, add horizontal negative pressure wind to carry out dedusting, but because selection by winnowing mode designs unreasonable, cause dust removing effects all bad, and easily cause larger environmental pollution.
Summary of the invention
The utility model proposes a kind of bag-type dust collector for grain cleaner, the dust after adopting sack cleaner to selection by winnowing is processed, and has the features such as grain cleaning efficiency grain high, that clean gained is clean, airborne dust is few, environmental protection.
Concrete scheme of the present utility model is:
Bag-type dust collector for grain cleaner, comprise blower fan and sack cleaner, the import of blower fan connects with the export pipeline of sack cleaner, the grain charging aperture of grain cleaner and grain discharging opening place 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.
The above-mentioned bag-type dust collector for grain cleaner, the negative pressure dust removal of pneumatic separation device of grain charging aperture comprises receiving hopper, negative-pressure air duct, described receiving hopper contains an inclination headwall, the outlet of feed hopper is over against the upper edge of described inclination headwall, the grain that feed hopper flows out flows downward to interior screen drum along described inclination headwall, middle part at described inclination headwall has air inlet, and described negative-pressure air duct is vertically set on inclination headwall top over against the position of air inlet.
The above-mentioned bag-type dust collector for 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, middle part at inclination headwall has air inlet, and described negative-pressure air duct is vertically set on inclination headwall top over against the position of air inlet.
The above-mentioned bag-type dust collector for grain cleaner, the front portion of grain cleaner drum sieve is provided with the light assorted unit of cleaning, the light assorted unit of cleaning comprises blower, deep bead, exhaust duct and the collecting box of gently mixing, blower output gas flow will gently be mixed and be advanced along drum sieve bottom, after collision deep bead, enter in light assorted collecting box, the exhaust duct that the air-flow of blower output is arranged by deep bead top is discharged, described blower connects with the outlet of blower fan, and described exhaust duct connects with the inlet ductwork of sack cleaner.
The above-mentioned bag-type dust collector for grain cleaner, is provided with damper on the pipeline between blower and blower fan.
The above-mentioned bag-type dust collector for grain cleaner, the pipeline of fan outlet is divided into two, and a road connects blower after damper, and directly discharge on another road.
The above-mentioned bag-type dust collector for grain cleaner, sack cleaner is pulse blowing type sack cleaner, the pipeline one of described fan outlet is divided into three, the first via is directly discharged, the second tunnel connects blower after damper, Third Road, after presser unit, is inputted the high pressure gas bag into sack cleaner self by gas.
The useful technique effect the utlity model has is as follows:
1, the utility model combines traditional drum sieve type grain cleaner with sack cleaner, only has the just directly discharge of clean air, has overcome traditional cleaner dust is directly carried out to the deficiency of airborne release, has improved working environment, has the feature of environmental protection.
2, the utility model is all provided with negative pressure dust removal of pneumatic separation device at charging aperture and the discharging opening of grain cleaner, has guaranteed the cleanliness factor of output grain, and has not caused airborne dust; The negative pressure dust removal of pneumatic separation device adopting 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, has reduced the pollution to surrounding environment.
3, the utility model is provided with blower at the front end of drum sieve, drum sieve is difficult to separated, identical with grain size light assorted removing, improved the output quality of grain, reduced the risk of going mouldy of stored grain, improved the security that grain is preserved, and this is gently mixed and can directly be used as poultry and livestock feed, has reduced waste.
4, the fan outlet pipeline of bag-type dust collector of the present utility model adopts the mode of one-to-two or a minute three, and air-flow has been carried out to secondary utilization, has simplified the structure of cleaner, has reduced production cost.
5, grain cleaner integral body of the present utility model is closed structure, only leaves air inlet, air outlet, food import and grain-export, has reduced grain and has cleaned the pollution to surrounding enviroment in work, has the feature of environment protection clean.
Accompanying drawing explanation:
Fig. 1 is traditional dust removal of pneumatic separation principle schematic;
Fig. 2 is efficient dust removal of pneumatic separation principle schematic of the present utility model;
Fig. 3 is the compound grain cleaner operation principle of the utility model environment-friendly type schematic diagram;
Fig. 4 is the operation principle schematic diagram of the utility model bag-type dust collector;
Fig. 5 is the operation principle schematic diagram of the utility model pulse blowing type bag-type dust collector;
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; 32-front support stand; The rotating shaft of 33-screen drum.
The specific embodiment
The utility model is to improve on the basis of existing drum sieve type grain cleaner, mainly improves content and 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 dedusting mouth of pneumatic separator is over against the grain falling, as shown in Figure 1, grain 2 free-fallings in feed hopper 1, in the direction falling perpendicular to grain, be provided with negative-pressure air duct 3, the dust in grain is siphoned away, at feed hopper 1, over against the position of negative-pressure air duct, be provided with air inlet 5.This method is because the barrier effect in grain whereabouts causes dust cleaning not thorough.
Dust removal of pneumatic separation device of the present invention is as shown in Figure 2: the outlet of feed hopper 1 is flat, mode by grain 2 with thin layer is routed on the inclination headwall of receiving hopper 4, in the centre of inclination headwall, be provided with air inlet 5, directly over air inlet 5, be provided with negative-pressure air duct 3, the grain 2 first below of negative-pressure air duct 3 has become uniform thin layer and has arranged, under the effect of negative-pressure sucking and grain gravity, can on inclination headwall, form eddy current, and cause the rolling of thin layer grain, can reach like this effect of clean dust, simultaneously due to suction function, a part of dust in feed hopper 1, will be with air-flow inspiration negative-pressure air duct 3, therefore can be at very little wind-force in the situation that, realize clean dedusting, and dust is all siphoned away to dust collecting installation by negative-pressure air duct 3, reduced 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 preferably angle is 60 °.
Two, combined type grain is cleaned mode
As shown in Figure 3, compound grain cleaner of the present utility model mainly comprises screening unit, dust removal of pneumatic separation unit, dry organic assorted removal unit and gas purification units.
Wherein screen unit and comprise double-deck screen drum or the multilayer screen drum rotating 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 large the mixing being greater than 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 coaxially arrange, 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 rotating of screen drum, and then reach the cleaning to the large small impurities of different size, large assorted outlet and product outlet large assorted and that grain is arranged by screen drum front end respectively that cleaning obtains enter in gathering-device separately, the little assorted little assorted collecting box that outer screen drum 12 bottoms arrange that enters.Large mixing discharged by the wind auger that closes of correspondence with little mixing.
For simplicity, this description does not provide the concrete mechanism part of above-mentioned common practise, the block diagram such as interior screen drum 11 and outer screen drum 12 have just been drawn, the Chinese utility model patent that concrete structure can be 02232451.8 referring to application number " novel cylindrical grain cleaner ".
When containing impurity grain, first enter after interior screen drum 11, under the rotation of screen drum, large assorted staying in interior screen drum 11, and in inclination angle enters the large assorted collecting box of screen drum front end setting, in remaining grain and the little assorted outer screen drum 12 entering by the mesh of interior screen drum 11, its medium and small assorted entered in little assorted collecting box 14 along the mesh of outer screen drum 12, grain 2 has entered 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 like this environmental pollution causing in little assorted discharge.
Dust removal of pneumatic separation unit arranges respectively the inlet and outlet of screening unit, 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, at the middle part of inclination headwall, be provided with some air inlets 5, directly over air inlet 5, be provided with 1# negative-pressure air duct 3, grain 2 is under the effect of negative-pressure sucking and grain gravity, can form eddy current, and cause the rolling of thin layer grain, drive dust roll and be inhaled in 1# negative-pressure air duct 3, the grain of having removed dust enters in interior screen drum 11 and carries out size selection.
Equally outside on the grain discharge bucket 13 of screen drum 12, also be provided with dust removal of pneumatic separation unit, its principle is consistent with the principle of import, discharge bucket 13 contains an inclination headwall, grain through outer screen drum 12 outputs is laid on the sloped sidewall of discharge bucket 13 with thin layer, middle part at inclination headwall has air inlet, and negative-pressure air duct 16 is vertically set on inclination headwall top over against the position of air inlet.
At the outlet of screen drum and entrance, dust removal of pneumatic separation unit is set respectively and has further increased dust removing effects, and work by negative pressure, dust is siphoned away, can greatly reduce the pollution to environment, reduce labor strength, simultaneously pneumatic separation device of the present utility model takes full advantage of the immixture of negative-pressure sucking and grain gravity, little to the requirement of wind-force, and good dedusting effect, operating efficiency are high.
Three, organic reason of living together
The object of organic assorted removal unit of drying is in the same size to some and grain, but density again lighter impurity is processed, device mainly comprises blower 17, exhaust duct 19, deep bead 18 and the 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 places, 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 inclination angle of the outer screen drum 12 of grain process having screened flows into discharge bucket 13, under the airflow function of blower 13, organic assorted being blown afloat of lightweight, and along reverse being blown to the rear end of outer screen drum 12 in inclination angle of outer screen drum 12, in the frame of outer screen drum 12 rear ends, be provided with deep bead 18, light assorted collision to deep bead 18, relies on gravity fall, enter in light assorted collecting box, and by corresponding wind closing type, collect auger and discharge; The 3# exhaust duct 19 that blowing air-flow arranges along deep bead 18 tops is discharged.
Organic assorted generally include basically identical with grain yardstick, but but than the impurity of grain light as the grain that goes mouldy, stalk, damaged by worms or irregular grain, and passed through dust removing units, only contain a small amount of dust, can directly be used as poultry, feed stripped.In addition by by light assorted removing of going mouldy, damaging by worms, reduce the risk of going mouldy of stored grain, improved the security that grain is preserved.
Four, bag-type dust collector
As shown in Figure 3, after 1# negative-pressure air duct 3,2# negative-pressure air duct 16 and 3# exhaust duct 19 gather, enter negative pressure house steward's 20 discharges that cleaner top arranges, and entered 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 the conventional air cleaners of industrial circle such as a kind of power plant, steel mill, after its operation principle is many non-woven bag absorption dusts of dust laden air through arranging in sack cleaner, then purifies and discharges through outlet.As shown in Figure 4, import and the negative pressure house steward in Fig. 3 20 of sack cleaner 21 are connected, the input of the outlet of sack cleaner 21 and blower fan 23 is connected, blower fan 23 outputs are divided into two, the one tunnel feed channel 24 of running in is directly entered atmosphere by purification rear section air venting, another road is through the blower 17 in damper 25 access Fig. 3, like this, the dirty air that contains the impurity such as dust being flowed into by negative pressure house steward 20 will be purified by sack cleaner 21, a part is used to light assorted blowing in grain and processes, another part is directly discharged in air, the reason arranging is like this that stream pressure due to fan outlet is much larger than the stream pressure of gently living together reason, therefore a part of cleaned air is directly discharged, damper 25 is set before this external blower 17, be convenient to the adjusting of stream pressure in producing, and by debugging test repeatedly, select suitable air door parameter according to the parameter of grain, guarantee that the air-flow of blower 17 just will gently mix and blow afloat, and have, 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 while being abound with bag, by the mode of mechanical vibrator, the dust on cloth bag can be removed, and drops down onto the dust collection bag of bottom, realizes long dedusting work; And for the sack cleaner of pulse jetting deashing mode work, during work, need to provide a high-pressure gas bag to sack cleaner, when dust is long-pending while being abound with bag, the magnetic valve of pulse mode work is opened high-pressure gas packet switch with cycle regular hour, gases at high pressure blow cloth bag in the mode of pulse, the dust of cloth bag is shaken off, dropped 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.From the air-flow of blower fan 23 outlets, be divided into three tunnels, the first via feed channel 24 of running in is directly entered atmosphere by purification rear section air venting, the second tunnel is through the blower 17 in damper 25 access Fig. 3, Third Road is after presser unit 22, gas is inputted to the high pressure gas bag into sack cleaner self, for the dedusting of sack cleaner.Why Third Road air-flow will be pressurizeed, be to have relatively high expectations owing to blowing the air pressure of grey high pressure gas bag used, and only reaching certain pressure could remove the dust adsorbing on sack cleaner in the mode of pulse.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, has kept the cleaning of working environment, in addition, by utilizing discharging the secondary of air-flow, has simplified the structure of cleaner, has reduced production cost.
Grain cleaner integral body of the present utility model is closed structure, only has the outlet of air inlet, air outlet, grain import and export and impurity, can prevent the environmental pollution that in watering and separation procedure, airborne dust causes.
The utility model is by cleaning mode, organicly living together the improvement such as reason, the processing of bag-type dust formula dust to above-mentioned dust removal of pneumatic separation unit, combined type, the grain cleaner that development obtains has the features such as cleaning efficiency grain high, that clean gained is clean, airborne dust is few, environmental protection, has met the requirement of Modern New agricultural development.

Claims (7)

1. for the bag-type dust collector of grain cleaner, it is characterized in that: comprise blower fan (23) and sack cleaner (21), the import of described blower fan (23) connects with the export pipeline of sack cleaner (21), the grain charging aperture of described grain cleaner and grain discharging opening place 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 (3,16) connects with the inlet ductwork of sack cleaner (21).
2. the bag-type dust collector for grain cleaner according to claim 1, it is characterized in that: 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) contains an inclination headwall, the outlet of feed hopper (1) is over against 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, at the middle part of described inclination headwall, have air inlet (5), described negative-pressure air duct (3) is vertically set on inclination headwall top over against the position of air inlet (5).
3. the bag-type dust collector for 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) contains an inclination headwall, the grain that outer screen drum (12) flows out flows downward along described inclination headwall, at the middle part of inclination headwall, have air inlet (5), described negative-pressure air duct (16) is vertically set on inclination headwall top over against the position of air inlet (5).
4. according to one of any described bag-type dust collector for grain cleaner of claims 1 to 3, it is characterized in that: the front portion of described grain cleaner drum sieve is provided with the light assorted unit of cleaning, described gently assortedly clean unit and comprise blower (17), deep bead (18), exhaust duct (19) and light assorted collecting box, described blower (17) output gas flow will gently be mixed and be advanced along drum sieve bottom, after collision deep bead (18), enter in light assorted collecting box, the exhaust duct (19) that the air-flow of blower (17) output is arranged by deep bead (18) top is discharged, described blower (17) connects with the outlet of blower fan (23), described exhaust duct (19) connects with the inlet ductwork of sack cleaner (21).
5. the bag-type dust collector for grain cleaner according to claim 4, is characterized in that: on the pipeline between described blower (17) and blower fan (23), be provided with damper (25).
6. the bag-type dust collector for grain cleaner according to claim 4, is characterized in that: the pipeline of described blower fan (23) outlet is divided into two, and a road connects blower (17) after damper (25), and directly discharge on another road.
7. the bag-type dust collector for grain cleaner according to claim 4, it is characterized in that: described sack cleaner (21) is pulse blowing type sack cleaner, the pipeline one of described blower fan (23) outlet is divided into three, the first via is directly discharged, the second tunnel connects blower (17) after damper (25), Third Road, after presser unit (22), is inputted gas into the high pressure gas bag of sack cleaner (21) self.
CN201320636513.2U 2013-10-15 2013-10-15 Cloth bag dust removal device used for grain cleaner Active CN203565373U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104738158A (en) * 2015-03-27 2015-07-01 常熟市广汇机械设备有限公司 Grain-drying dust collector
CN104772176A (en) * 2014-12-04 2015-07-15 贵州茅贡米业有限公司 Grain processing method and grain processing system
CN110604489A (en) * 2018-06-15 2019-12-24 九阳股份有限公司 Automatic material cleaning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772176A (en) * 2014-12-04 2015-07-15 贵州茅贡米业有限公司 Grain processing method and grain processing system
CN104738158A (en) * 2015-03-27 2015-07-01 常熟市广汇机械设备有限公司 Grain-drying dust collector
CN110604489A (en) * 2018-06-15 2019-12-24 九阳股份有限公司 Automatic material cleaning device

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