CN104210852A - Clearance arrangement type continuous vacuum feeding machine - Google Patents
Clearance arrangement type continuous vacuum feeding machine Download PDFInfo
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- CN104210852A CN104210852A CN201310207416.6A CN201310207416A CN104210852A CN 104210852 A CN104210852 A CN 104210852A CN 201310207416 A CN201310207416 A CN 201310207416A CN 104210852 A CN104210852 A CN 104210852A
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Abstract
The embodiment of the invention discloses a clearance arrangement type continuous vacuum feeding machine which comprises a feeding device and a discharging device below the feeding device. The feeding device comprises a feeding bin, a pneumatic material suction butterfly valve, a separation cone hopper, a filer bin and air channel mechanisms, the pneumatic material suction butterfly valve is arranged on the side wall of the feeding bin and used for carrying out feeding, the separation cone hopper is arranged in the feeding bin, the filter bin is arranged above the feeding bin, the air channel mechanisms are arranged above the separation cone hopper and are arranged in a bilateral symmetry mode, the structures of the air channel mechanisms are identical, and the two air channel mechanisms are connected with an electric vacuum pump through vacuum pipes. The electric vacuum pump is electrically connected with a control box. Through the clearance arrangement type continuous vacuum feeding machine, the aim of continuously and permanently conveying materials in a vacuum mode can be achieved without distance limits, the clearance arrangement type continuous vacuum feeding machine has the advantages of being high in conveying efficiency and high in vacuum source utilization rate, meanwhile, material suction and discharging can be kept smooth at constant speed, and dust leakage and potential safety hazards can be eliminated.
Description
Technical field
The present invention relates to a kind of vacuum feeder, particularly relate to row's type continuous vacuum feeder between one.
Background technology
Vacuum feeder is also referred to as powder delivery system (being called for short PTS), now be in the popularity stage both at home and abroad, the application of this equipment instead of man-handling of materials in the past and batch turning, effectively prevent dust from flying, and relatively simple for structure, use and the device reduces dust pollution and save labour power.But current vacuum feeder employed both at home and abroad is clearance-type, and there is blanking and have some setbacks, material sucking port is regurgitated, and fed distance is short, the problem that efficiency is lower.And farsighted distance or large-tonnage powder conveying often adopt malleation to carry, carry out malleation air blast by high pressure positive blower or pressurized air to the below long pipeline that Blowing stopper even feeding is housed and realize diluted phase transport, conveying end also needs to join cyclone, Blowing stopper and dust exhaustor have been come, therefore, not only equipment is various, take up an area space greatly, and cost is also quite high, pipeline connection place also easily occurs that dust is revealed and serious environment pollution, even dust explosion can occur.High efficiency conveying can not be met for clearance-type vacuum handling, and there is this situation of potential safety hazard in malleation conveying cost height, (both there is negative pressure transportation characteristic to meet market widespread demand again, there is again the large output conveying of the farsighted distance of malleation, also want economical and practical and there is not potential safety hazard) and develop CVF continuous vacuum feeder (also claiming continuous negative pressure load transfer device) specially.
No matter be plate valve formula or butterfly valve type vacuum feeder, all belong to clearance-type vacuum feeder, all lean on the attractive force of vacuum to be first drawn onto by material in feeder container when baiting valve is closed, material again when vacuum is closed in feeder container when baiting valve is opened by be gravitationally fallen to below equipment or container in, then vacuum intake state is entered again after having descended material, the alternate cycles vacuum intake gone round and begun again like this and self-weight blanking action, reach the object of conveying, so up to the present, the no matter that vacuum conveying apparatus in home and abroad, it is all clearance-type vacuum feeding, there is following problem:
1. efficiency is low, the not blanking when suction, the not suction when blanking, discontinuous convey materials on the time but staggered;
2. carry output unstable, particularly air driven jet vacuum generator does vacuum source, because vacuum depends on pressurized air to produce, and compressed-air actuated pressure often fluctuates at 0.4 ~ 0.8MPa, low during height when so the degree of vacuum of vacuum generator is also just with the fluctuation of compressed air pressure, the delivery speed of respective clearance formula vacuum feeder is also just sometimes fast and sometimes slow with the height change of degree of vacuum.The square structure of jet type vacuum producer own also can only bear clearance-type and produce vacuum, can not vacuum-resistant for a long time.
The only electric vacuum pump of most economical material benefit, but electric vacuum pump does clearance-type vacuum feeder and also deposits defect both ways: 1) if be equipped with Pneumatic three-way ball valve at vacuum feeder top vacuum lamp, just to there is vacuum source waste larger, when suction, vacuum source is just utilized acting, and vacuum pump is not also just done work by the air that tee ball valve is switched to suction extraneous when being switched to blanking, i.e. the wasting of resources, 2) if be equipped with pneumatic ball valve at vacuum feeder top vacuum lamp just there is feed blocking filter core group, outside air can not be inhaled because of vacuum pump when being switched to blanking and just cause vacuum pipe, the degree of vacuum of vacuum reservoir etc. increases to-80 to-90KPa, more much higher than the degree of vacuum (general-45 ~-60KPa) during suction, just cause high vacuum to change to low vacuum when being again switched to suction, the material that firm inspiration is gone just gets lodged in around filter core group and equipment barrel tightly and causes suction to have some setbacks, during blanking, just a large amount of pressurized air of blowback or nitrogen are also difficult to the material falling clearly blocking to storage tank instantaneously.If the degree of vacuum done vacuum source with high pressure positive blower and produce lower (general-23 KPa), cannot realize high conveying at a distance at all.
With the simple type continous vacuum material loading that there is different structure above; it is the interface being provided with material sucking port He vacuumizing on the equipment wanting suction (as wet granulator, mixer, reactor etc.); material sucking port connects suction flexible pipe and is used for charging; vacuum interface be filter core group first through installing to carry out gas solid separation, then receive Motorized vacuum source (as water ring vacuum pump, repeatedly vacuum pump, rotary-vane vaccum pump etc.) with pipeline.Before conveying first that equipment container is airtight and only allow material sucking port and vacuum port unimpeded, equipment under the effect of vacuum just material from suction tube introducing equipment container, then carry out, after gas solid separation, air-flow is drained into Motorized vacuum source through filter core group.Its convey materials just occurs after a short time can not suction, (material of filter opening and periphery is blown down by pressurized air because filter core cannot complete self-cleaning when vacuum intake, filter core is allowed to remain unimpeded state) result in blockage, degree of vacuum in blocking suction tube slowly reduces, just progressively causing cannot suction, want again unimpeded conveying continually filter core to be taken out and clean up or more renew cartridge, this makes troubles to user, and medicine is also exposed and follow operator frequently to contact, and normally cannot use and reach GMP requirement at all.
Summary of the invention
Technical matters to be solved by this invention is, row's type continuous vacuum feeder between one is provided, the object of lasting vacuum handling material can not be realized continuously by distance restriction, have the advantages that transport efficiency is high, vacuum source degree of utilization is high, the simultaneously good discharging of suction all can remain a constant speed unimpeded state, and can also eliminate dust and reveal and potential safety hazard.
In order to solve the problems of the technologies described above, embodiments provide row's type continuous vacuum feeder between one, comprise feeding device and be positioned at discharge device below feeding device, described feeding device comprises feeding warehouse, be positioned at the pneumatic suction butterfly valve for charging of described feeding warehouse sidewall, be positioned at the separation cone bucket of described feeding warehouse, be positioned at the filtering cabin above described feeding warehouse and be positioned at above described separation cone bucket and the identical air channel mechanism of the structure of point symmetrical arrangement; Two described air channel mechanisms are connected with electric vacuum pump by vacuum lamp; Described feeding device and described discharge device are electrically connected with control box respectively.
For the improvement of technique scheme, the inwall of described feeding warehouse is provided with for detecting material and the level-sensing device be electrically connected with described control box.
For the further improvement of technique scheme, described air channel mechanism comprises blowback air bag, be positioned at the filter core of described filtering cabin, the air door that is positioned at described filtering cabin top and the cylinder be positioned at above described air door.
For the further improvement of technique scheme, described air door place is provided with packing seal.
For the further improvement of technique scheme, described discharge device comprises blanking bin, be positioned at the drain hopper of described blanking bin inner upper, be positioned at plate valve seal ring bottom described drain hopper, be positioned at convex top board valve bottom described plate valve seal ring, be positioned at for the pneumatic blanking butterfly valve of blanking, the butterfly valve seal circle being positioned at described pneumatic blanking butterfly valve place, the atmospheric valve being positioned at described blanking bin sidewall and the respirator be connected with described atmospheric valve below described convex top board valve, and described atmospheric valve is communicated with described pneumatic suction butterfly valve by air suction valve.。
For the further improvement of technique scheme, the sidewall of described blanking bin is provided with vibrator.
For the further improvement of technique scheme, described feeding device and described blanking device adopt anulated connection.
In sum, adopt the Liang Ge air channel mechanism of symmetrical arrangement of the present invention, carry out left and right and switch in turn, ensure that vacuum pneumatic is unimpeded, the air channel mechanism namely when the left side opens, then the air channel mechanism on the right closes; When air channel, the right mechanism opens, then air channel, left side mechanism then closes, thus reaches the object of continuous feed.
Implement the embodiment of the present invention, there is following beneficial effect:
(1) object of continus convergence material is achieved;
(2) improve transport efficiency;
(3) substantially increase the degree of utilization in Motorized vacuum source, do not cause the wasting of resources;
(4) achieve length, carry at a distance;
(5) large-tonnage conveying is achieved;
(6) achieve dustless equalization, avoid dust pollution and the hidden danger solving smashed district;
(7) cost is low, the life-span is long.
Accompanying drawing explanation
Fig. 1 is of the present invention row's type continuous vacuum feeder structural representation in an embodiment.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, of the present invention row's type continuous vacuum feeder, the discharge device 2 comprising feeding device 1 and be positioned at below described feeding device 1, described feeding device 1 is connected by clip 24 cassette with described discharge device 2, ensure that the leak tightness connected therebetween.Described feeding device 1 and described discharge device 2 are electrically connected with control box 10 respectively, and namely the two is respectively by the intelligentized control method of described control box 10.
Wherein, described feeding device 1 comprises feeding warehouse 3, pneumatic suction butterfly valve 4, separation cone bucket 5, filtering cabin 6 and air channel mechanism 7; Described pneumatic suction butterfly valve 4 is positioned at the sidewall of described feeding warehouse 3, as inlet point; The impurity such as described separation cone bucket 5 is positioned at described feeding warehouse 3, and described filtering cabin 6 is positioned at the top of described feeding warehouse 3, the dust that the material for filtering suction is brought into, avoid the generation of dust from flying and dust explosion; Described air channel mechanism 7 is positioned at the top of described separation cone bucket 5, and be provided with two, respectively symmetrical arrangement, it comprises blowback air bag 12, be positioned at the filter core 13 of described filtering cabin 6, the air door 14 that is positioned at described filtering cabin 6 top and the cylinder 15 be positioned at above described air door 14.Meanwhile, two described air channel mechanisms 7 are connected with electric vacuum pump 9 by vacuum lamp 8, and described electric vacuum pump 9 is electrically connected with control box 10, and described control box 10 is PLC control system, has intelligentized control method function.
Described discharge device 2 comprises blanking bin 18, drain hopper 19, plate valve seal ring 20, convex top board valve 21, pneumatic blanking butterfly valve 22, the butterfly valve seal circle 23 being positioned at described pneumatic blanking butterfly valve 22 place, atmospheric valve 26 and respirator 27; Described drain hopper 19 is positioned at the top of described blanking bin 18 inside, described plate valve seal ring 20 is positioned at the bottom of described drain hopper 19, for sealing the effect of described drain hopper 19, described 21, convex top board valve is positioned at the bottom of plate valve seal ring 20, for coordinating the below of material, described pneumatic blanking butterfly valve 22 is positioned at the below of described convex top board valve 21, as the outlet of blanking.Described butterfly valve seal circle 23 is in sealing state as described pneumatic blanking butterfly valve 22, described atmospheric valve 26 is positioned at the sidewall of described blanking bin 18, described respirator 27 is connected with described atmospheric valve 26, and described atmospheric valve 26 is communicated with described pneumatic suction butterfly valve 4 by air suction valve 25.。
Be more than that the structure of of the present invention row's type continuous vacuum feeder is described, below its principle of work illustrated, corresponding with structure, comprise fill process and discharging process:
Fill process: described pneumatic suction butterfly valve 4 is opened, closes described plate valve seal ring 20.Described control box 10 starts described vacuum pump 9 and starts working, and powder is directly tangentially entered by pneumatic suction butterfly valve 4 by outside under vacuum, and falls into described drain hopper 19 in the shape of a spiral along the barrel of feeding warehouse 3.Powder is under the cyclonic separation effect of described separation cone bucket 5, and air-flow and a small amount of dust, under the attraction of vacuum, enter filtering cabin 6, and described filtering cabin 6 and two described air channel mechanisms 7 form two cover air channels.Two cover air channels then respectively rotation forked working complete the blowback cleaning of filter core 13 and vacuum continuous.When the air door 14 being positioned at the left side is opened, be then positioned at air door 14 closedown on the right, the filter core 13 of 12, blowback air bag to the right on the right carries out blowback self-cleaning; When control box 1 changeover program is opened to the air door 14 being positioned at the right, then safeguard that the air door 14 on the left side is closed, the filter core 13 of 12, blowback air bag to the left side on the left side carries out blowback self-cleaning.The replacing of iterative cycles like this ensures that vacuum is continuous, and air channel, two, left and right is unimpeded, also just ensure that the vacuum in feeding warehouse 3 keeps continuous steady state, is therefore also just in the state of feeding in continuous material by the material inhaled.Wherein, the switching in air channel, left and right, according to the difference of material, carries out corresponding time setting by control box 10.The plate valve seal ring 20 of closing also can replace to closes butterfly valve seal circle 23, and namely when closing plate valve seals 20, then material enters described drain hopper 19; When closing described butterfly valve seal circle 23, then material enters described blanking bin 18.
Discharging process: by the material of inspiration in fill process above first along the barrel of feeding warehouse 3 in the shape of a spiral after drain hopper 19, convex top board valve 21, drop to (what now close is described butterfly valve seal circle 23) in blanking bin 18.Described control box 10 is according to the time of run preset, and closed by described convex top board valve 21, and opened by described atmospheric valve 26, realize the pressure balance of blanking bin 2 air pressure inside and external atmosphere pressure, blanking butterfly valve 22 described in time delay is opened and carried out discharge.In this process, the generation of dust avoided by the filtering installation protection material in respirator 27 in discharging process; When after operation Preset Time, first described air suction valve 25 is opened, realize blanking bin 2 air pressure inside and feeding warehouse 1 air pressure inside balances, after then described blanking butterfly valve 22 cuts out, then stop discharge, then described convex top board valve 21 is opened, and material falls into again in described blanking bin 18.One open-one close so repeatedly complete discharging work, namely realize batch (-type) discharge.This kind of batch (-type) discharge is also adjust the step time by described control box 10.
For the improvement of technique scheme, described air door 14 place is provided with packing seal 16.Described packing seal 16 is all adopt different in nature silica gel or viton material with described plate valve seal ring 20, butterfly valve seal circle 23, has good sealing effectiveness.
For the further improvement of technique scheme, the sidewall of described blanking bin 18 is provided with the vibrator 17 being convenient to whereabouts for material.Object is the bridging problem solving material.Meanwhile, described vibrator 17 can also replace to pneumatic hammer, acts on identical.
For the further improvement of technique scheme, the inwall of described feeding warehouse 3 is provided with for detecting material and the level-sensing device 11 be electrically connected with described control box 10.Described level-sensing device 11 is used to detect material, thus judges the relation of feed rate and discharge velocity.Of the present invention row's type continuous vacuum feeder, in order to better realize vacuum feeding in continuous material and batch (-type) discharge, the speed of charging and discharge just must be coordinated, that is, only have feed rate to be less than or equal to discharge velocity, just can reach continuous negative pressure conveying effect.Therefore carry level-sensing device 11 firmly to detect and the transmission control box 10 of automatic feedback information, transmission control box 10 is made adjustment according to information the operation of feed rate or discharge velocity.Such as, when level-sensing device 11 has detected material, then illustrate that the speed of discharge is partially slow, then described control box 10 sends convex top board valve 21 and blanking butterfly valve 22 1 described in quickening discharging process and opens a switching frequency closed.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (7)
1. row's type continuous vacuum feeder between, comprises feeding device (1) and is positioned at the discharge device (2) below feeding device (1), it is characterized in that;
Described feeding device (1) comprises feeding warehouse (3), is positioned at the pneumatic suction butterfly valve (4) for charging of described feeding warehouse (3) sidewall, is positioned at the separation cone bucket (5) of described feeding warehouse (3), is positioned at the filtering cabin (6) of described feeding warehouse (3) top and is positioned at described separation cone bucket (5) top and divides the air channel mechanism (7) that the structure of symmetrical arrangement is identical;
Two described air channel mechanisms (7) are connected with electric vacuum pump (9) by vacuum lamp (8);
Described feeding device (1) and described discharge device (2) are electrically connected with control box (10) respectively.
2. according to claim 1 row's type continuous vacuum feeder, is characterized in that:
The inwall of described feeding warehouse (3) is provided with for detecting material and the level-sensing device (11) be electrically connected with described control box (10).
3. according to claim 1 row's type continuous vacuum feeder, is characterized in that:
Described air channel mechanism (7) comprises blowback air bag (12), is positioned at the filter core (13) of described filtering cabin (6), is positioned at the air door (14) at described filtering cabin (6) top and is positioned at the cylinder (15) above described air door (14).
4. according to claim 3 row's type continuous vacuum feeder, is characterized in that:
Described air door (14) place is provided with packing seal (16).
5. according to claim 1 row's type continuous vacuum feeder, is characterized in that;
Described discharge device (2) comprises blanking bin (18), be positioned at the drain hopper (19) of described blanking bin (18) inner upper, be positioned at the plate valve seal ring (20) of described drain hopper (19) bottom, be positioned at the convex top board valve (21) of described plate valve seal ring (20) bottom, be positioned at the pneumatic blanking butterfly valve (22) that described convex top board valve (21) below is used for blanking, be positioned at the butterfly valve seal circle (23) at described pneumatic blanking butterfly valve (22) place, the atmospheric valve (26) being positioned at described blanking bin (18) sidewall and the respirator (27) be connected with described atmospheric valve (26), and described atmospheric valve (26) is communicated with described pneumatic suction butterfly valve (4) by air suction valve (25).
6. according to claim 5 row's type continuous vacuum feeder, is characterized in that;
The sidewall of described blanking bin (18) is provided with vibrator (17).
7. according to claim 1 row's type continuous vacuum feeder, is characterized in that:
Described feeding device (1) and described blanking device (2) adopt clip (24) to be connected.
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| CN201310207416.6A CN104210852B (en) | 2013-05-30 | 2013-05-30 | Between row's type continuous vacuum feeder |
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| CN201310207416.6A CN104210852B (en) | 2013-05-30 | 2013-05-30 | Between row's type continuous vacuum feeder |
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| CN104210852A true CN104210852A (en) | 2014-12-17 |
| CN104210852B CN104210852B (en) | 2016-12-28 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105936115A (en) * | 2016-05-30 | 2016-09-14 | 张家港市繁昌机械有限公司 | Automatic weighing type main material discharging device |
| CN105936113A (en) * | 2016-05-30 | 2016-09-14 | 张家港市繁昌机械有限公司 | Vacuum feeding device |
| CN106629072A (en) * | 2017-02-24 | 2017-05-10 | 昆山盛纺非织造材料研发中心有限公司 | Separation type vacuum feeding machine and material feeding system |
| CN108176314A (en) * | 2017-12-29 | 2018-06-19 | 宣城万德机械制造有限公司 | A kind of vacuum feeding batch mixing all-in-one machine |
| CN109292457A (en) * | 2018-10-26 | 2019-02-01 | 张家港市格雷斯机械有限公司 | Continuous vacuum feeder |
| CN110156543A (en) * | 2019-06-26 | 2019-08-23 | 浏阳市凯达实业有限责任公司 | A kind of band draws pelletizer and method |
| CN110482232A (en) * | 2019-08-27 | 2019-11-22 | 王从众 | A kind of binary channels continuous vacuum adsorbent equipment |
| CN112551172A (en) * | 2020-04-30 | 2021-03-26 | 章丘丰源机械有限公司 | Environment-friendly pneumatic conveying system |
| CN112707171A (en) * | 2020-12-30 | 2021-04-27 | 杭州富阳东山塑料机械有限公司 | Feeding device combining air exhaust and pressurization and feeding method thereof |
| CN116688870A (en) * | 2023-05-31 | 2023-09-05 | 楚天科技股份有限公司 | Fluidized bed discharging and conveying device, method and system |
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| CN110156543A (en) * | 2019-06-26 | 2019-08-23 | 浏阳市凯达实业有限责任公司 | A kind of band draws pelletizer and method |
| CN110482232A (en) * | 2019-08-27 | 2019-11-22 | 王从众 | A kind of binary channels continuous vacuum adsorbent equipment |
| CN112551172A (en) * | 2020-04-30 | 2021-03-26 | 章丘丰源机械有限公司 | Environment-friendly pneumatic conveying system |
| CN112707171A (en) * | 2020-12-30 | 2021-04-27 | 杭州富阳东山塑料机械有限公司 | Feeding device combining air exhaust and pressurization and feeding method thereof |
| CN116688870A (en) * | 2023-05-31 | 2023-09-05 | 楚天科技股份有限公司 | Fluidized bed discharging and conveying device, method and system |
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