CN104176503B - Platoon type continuous vacuum feeder - Google Patents
Platoon type continuous vacuum feeder Download PDFInfo
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- CN104176503B CN104176503B CN201310192604.6A CN201310192604A CN104176503B CN 104176503 B CN104176503 B CN 104176503B CN 201310192604 A CN201310192604 A CN 201310192604A CN 104176503 B CN104176503 B CN 104176503B
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Abstract
The embodiment of the invention discloses a kind of platoon type continuous vacuum feeder, including feeding warehouse and the blanking bin being arranged on its underpart, the side of feeding warehouse is provided with charging aperture, charging aperture is provided with pneumatic suction butterfly valve, between feeding warehouse and blanking bin, is provided with drain hopper, bottom drain hopper, be movably provided with convex top board valve, discharging opening it is provided with bottom blanking bin, being provided with pneumatic blanking butterfly valve on discharging opening, feeding warehouse top is additionally provided with filtering cabin, is provided with left and right two bins in filtering cabin；Left room blowback air bag and rapid escape valve, left room filter element, left air door, left cylinder form left air channel, right ventricle's blowback air bag and rapid escape valve, right ventricle's filter element, right air door, right cylinder form right air channel, it is an object of the invention to provide one can friction feeding, transfer efficiency want height, do not waste vacuum source, allow suction and discharging all remain a constant speed row's type continuous vacuum feeder between unimpeded state.
Description
Technical field
The present invention relates to vacuum feeder field, particularly relate to a kind of platoon type continuous vacuum feeder.
Background technology
Vacuum feeder is also referred to as powder delivery system (being called for short PTS), now it is 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 force.But current vacuum feeder employed both at home and abroad is clearance-type, there is blanking and has some setbacks, and material sucking port is regurgitated, and fed distance is short, inefficient problem.And farsighted distance or large-tonnage powder conveying often adopt malleation to carry, carry out malleation air blast to the lower section long pipeline equipped with Blowing stopper even feeding with high pressure positive blower or compression air and realize diluted phase transport, conveying end also needs to join cyclone separator, Blowing stopper and cleaner unit and completes, therefore, not only equipment is various, takes up an area space greatly, and cost is also quite high, pipe joint place also easily occurs that dust is revealed and serious environment pollution, and dust explosion even 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 big yield conveying of the farsighted distance of malleation, also want economical and practical and be absent from potential safety hazard) and develop CVF continuous vacuum feeder (also referred to as continuous negative pressure conveying equipment) specially.
No matter it is plate valve formula or butterfly valve type vacuum feeder, broadly fall into clearance-type vacuum feeder, it is all lean on the captivation of vacuum to be first drawn onto by material in feeder container when baiting valve is closed, again when vacuum is closed the material in feeder container when baiting valve is opened by be gravitationally fallen to lower section equipment or container in, then vacuum intake state is entered again under after complete material, the alternate cycles vacuum intake so gone round and begun again and self-weight blanking action, reach the purpose of conveying, so up to the present, the no matter that vacuum conveying apparatus in home and abroad, it it is all clearance-type vacuum feeding.
The efficiency of clearance-type vacuum feeder is low, the not blanking when suction, the not suction when blanking, discontinuous conveying material on the time but staggered.
Conveying yield is unstable, particularly air driven jet vacuum generator does vacuum source, produce because vacuum depends on compression air, and compressed-air actuated pressure often fluctuates at 0.4～0.8MPa, when so the vacuum of vacuum generator is also just with the fluctuation of compressed air pressure low during height, the transporting velocity of respective clearance formula vacuum feeder also just with vacuum height change and sometimes fast and sometimes slow.The square structure of jet type vacuum generator own also can only bear clearance-type and produce vacuum, it is impossible to long-time vacuum-resistant.The only electric vacuum pump of most economical material benefit.
Electric vacuum pump does clearance-type vacuum feeder and there is also the defect of two aspects: 1) bigger if existing for vacuum source waste at vacuum feeder top vacuum tube equipped with Pneumatic three-way ball valve, when suction, vacuum source is just utilized acting, and the air that vacuum pump is also just switched to suction extraneous by tee ball valve when being switched to blanking does not do work, i.e. the wasting of resources；2) if existing for feed blocking filter element group at vacuum feeder top vacuum tube equipped with pneumatic ball valve, because when being switched to blanking, vacuum pump can not be inhaled outside air and results in vacuum pipe, the vacuum of vacuum tank etc. increases to-80 to-90KPa, than suction time vacuum (general-45～-60KPa) much higher, result in fine vacuum to change to coarse vacuum when again switching to suction, the material that firm inspiration is gone just gets lodged in tightly around filter element group and equipment barrel and causes suction to have some setbacks, during blanking, air accumulator compresses air in a large number with regard to moment blowback or nitrogen also is difficult to fall clearly the material of blocking.If the vacuum done vacuum source with high pressure positive blower and produce relatively low (general-23KPa), high conveying at a distance cannot be realized at all.
Plain type continuous vacuum feeding is exactly the interface being provided with material sucking port and evacuation on the equipment (such as wet granulator, mixer, reactor etc.) wanting suction; material sucking port connects suction flexible pipe and is used for charging; vacuum interface is that first filter element group through installing, to carry out gas solid separation, then receives Motorized vacuum source (such as water ring vacuum pump, repeatedly vacuum pump, rotary-vane vaccum pump etc.) with pipeline.First airtight for equipment container and only allow material sucking port and vacuum port unimpeded before conveying, equipment under the effect of vacuum just material from suction tube introducing equipment container, after carrying out gas solid separation then through filter element group, air-flow being drained into Motorized vacuum source.
Occurring as soon as after carrying a short time material can not suction, (material of filter opening and periphery is blown down with compression air because filter element cannot complete self-cleaning when vacuum intake, filter element is allowed to remain unimpeded state) result in blockage, vacuum in blocking suction tube slowly reduces, just progressively causing cannot suction, want again unimpeded conveying continually filter element taking-up to be cleaned up or changes filter element, this makes troubles to user, and medicine is also exposed and frequently contacts with operator, cannot normally use at all and reach GMP requirement.
Summary of the invention
Embodiment of the present invention technical problem to be solved is in that, it is provided that one friction feeding, transfer efficiency can want height, does not waste vacuum source, allows suction and discharging all remain a constant speed the platoon type continuous vacuum feeder of unimpeded state.
Described platoon type continuous vacuum feeder, including feeding warehouse and the blanking bin being arranged on its underpart, the side of described feeding warehouse is provided with charging aperture, described charging aperture is provided with pneumatic suction butterfly valve, it is provided with drain hopper between described feeding warehouse and blanking bin, convex top board valve it is movably provided with bottom described drain hopper, it is provided with discharging opening bottom described blanking bin, described discharging opening is provided with pneumatic blanking butterfly valve, described feeding warehouse top is additionally provided with filtering cabin, is provided with a left side in described filtering cabin, right two bins, a described left side, it is respectively arranged with left room filter element inside right two bins, right ventricle's filter element, a described left side, right two bin tops are correspondingly arranged on left air door and right air door respectively, and the top of described left air door and right air door is connected with left cylinder and right cylinder, a described left side respectively, the side of right two bins is connected with left room blowback air bag and rapid escape valve and right ventricle's blowback air bag and rapid escape valve, described left room blowback air bag and rapid escape valve respectively, left room filter element, left air door, left cylinder forms left air channel, described right ventricle's blowback air bag and rapid escape valve, right ventricle's filter element, right air door, right cylinder form right air channel, also include main control centre, described main control centre respectively with described left air door, right air door, convex top board valve and pneumatic blanking butterfly valve connect, and are used for controlling left air door, right air door, the switch of convex top board valve and pneumatic blanking butterfly valve and switch time.
Cyclonic separation cone bucket it is provided with between described feeding warehouse and filtering cabin.
Described feeding warehouse and periphery, filtering cabin junction are provided with cylinder clip.
In inverted cone bottom described blanking bin, bottom described blanking bin, the conical surface is provided with vibrator.
Described filtering cabin and its periphery, top cover junction are provided with cylinder sealing ring.
Described pneumatic blanking butterfly valve periphery is provided with butterfly valve seal circle.
Described feeding warehouse charging aperture is arranged below level-sensing device, and described level-sensing device is used for detecting and completing automatic feedback control, then proves that when level-sensing device has detected material discharge velocity is partially slow, and program will point out the switching frequency reported to the police and automatically accelerate twice valve.
Implement the embodiment of the present invention, have the advantages that
The Motorized vacuum source of embodiment of the present invention low cost is used as power, allow material no matter in short low distance or all can realize continuously lasting vacuum (negative pressure) under farsighted distance carries (by distance limit), and transfer efficiency is high, do not waste vacuum source, suction and discharging is allowed all to remain a constant speed unimpeded state, allow this continuous way feeding function better be combined with equipment such as reactors, form the excellent system engineering of continuous suction and gap discharge.And then can replace malleation conveying eliminate dust reveal and eliminate safe hidden trouble, realize carrying material continuously, the effective discharges material of clearance-type, improve transfer efficiency, significantly make use of Motorized vacuum source, there is no the wasting of resources, it is achieved that long term distance is carried, large-tonnage conveying, dustless equalization, avoid dust pollution and solve the hidden danger of smashed district, economical and practical, durable in use.
Accompanying drawing explanation
Fig. 1 is platoon type continuous vacuum feeder example structure schematic diagram of the present invention.
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.
Embodiments provide a kind of platoon type continuous vacuum feeder, as shown in Figure 1, including feeding warehouse 16 and the blanking bin 20 being arranged on its underpart, the side of feeding warehouse 16 is provided with charging aperture, charging aperture is provided with pneumatic suction butterfly valve 1, drain hopper 17 it is provided with between feeding warehouse 16 and blanking bin 20, convex top board valve 19 and plate valve sealing ring 18 it is movably provided with bottom drain hopper 17, it is provided with discharging opening bottom blanking bin 20, discharging opening is provided with pneumatic blanking butterfly valve 22, pneumatic blanking butterfly valve 22 periphery is provided with butterfly valve seal circle 23, feeding warehouse 16 top is additionally provided with filtering cabin 13, feeding warehouse 16 and periphery, filtering cabin 13 junction are provided with cylinder clip 2, filtering cabin 13 and its periphery, top cover 11 junction are provided with cylinder sealing ring 5, filtering cabin 13 is internally provided with a left side, right two bins, left, it is respectively arranged with left room filter element 4 inside right two bins, right ventricle's filter element 12, left, right two bin tops are correspondingly arranged on left air door 6 and right air door 10 respectively, the top of left air door 6 and right air door 10 is connected with left cylinder 7 and right cylinder 8 respectively, left, the side of right two bins is connected with left room blowback air bag and rapid escape valve 14 and right ventricle's blowback air bag and rapid escape valve 14 respectively；Left room blowback air bag and rapid escape valve 14, left room filter element 4, left air door 6, left cylinder 7 forms left air channel, right ventricle's blowback air bag and rapid escape valve 14, right ventricle's filter element 12, right air door 10, right cylinder 8 forms right air channel, filtering cabin 13 top is additionally provided with vacuum tube interface 9, realize air channel, left and right and switch switching in turn to ensure that vacuum pneumatic is unimpeded, and then reach the purpose of continuous feed, again by drain hopper 17, convex top board valve 19, blanking bin 20 and the mutual close fit of pneumatic blanking butterfly valve 22 realize the material continuously entered and discharge outside feeder with gap discharging method on the spot.
Continuous feed: pneumatic suction butterfly valve 1 valve that equipment feeding warehouse 16 is installed open with device bottom wherein together with valve convex top board valve 19 or pneumatic blanking butterfly valve 22 close tight time, the suction tube that powder body is connect by outside under vacuum tangentially enters through the pneumatic suction butterfly valve 1 of feeder equipment, drain hopper 17 or blanking bin 20 is fallen in the shape of a spiral along feeding warehouse 16 barrel, under the attraction of vacuum, compartment filtering cabin 13 is entered in cyclonic separation cone bucket 15 centrifugation downstream and a small amount of dust, filtering cabin 13 and top constitute the air channel that each cuff filters around, two set air channel rotation forked workings respectively complete the blowback cleaning of filter element and vacuum is continuous, when the left air door 6 of vacuum valve chamber is opened, right air door 10 is shut off, right ventricle's filter element 12 is carried out blowback self-cleaning by right ventricle's blowback air bag and rapid escape valve 14；When the right air door 10 that Automatic Program is switched to vacuum valve chamber is opened, left air door 6 is closed, left room filter element 4 is carried out blowback self-cleaning by left room blowback air bag 3, left air door 6, right air door 10 automatic alternate replace to keep vacuum continuous like this, it is alternately accomplished filter element self-cleaning voluntarily and remains that air channel, left and right is unimpeded, vacuum in obvious suction tube is also at continuous steady state, then the material inhaled also is at feeding in continuous material state.The switching in air channel, left and right controlled by the setting time, and the time of different material respective settings also differs.
Gap discharge: material that continuous vacuum feeder is inhaled at first first along feeding warehouse 16 barrel in the shape of a spiral through drain hopper 17, pneumatic unlatching convex top board valve 19, drop in the blanking bin 20 that pneumatic blanking butterfly valve 22 is closed tight, program is run the convex top board valve 19 in top when reaching to set N1 second and is closed, and bottom when convex top board valve 19 is closed tight after, pneumatic blanking butterfly valve 22 is opened and carried out discharge；Again when program is run and reached to set N2 second, the pneumatic blanking butterfly valve 22 in bottom is closed back upper place convex top board valve 19 tight and is opened and dropped to again by the material of Sheng in the blanking bin 20 closed tight of pneumatic blanking butterfly valve 22 of bottom, going up lower valve one open-one close forked working like this and complete discharging work, this blowing mode is referred to as gap discharge.Gap discharge is also control by the setting time.Fluidizer 21, vibrator or pneumatic hammer etc. is needed to solve material bridging too according to different material characteristic.
Reach the speed that vacuum feeding in continuous material and continuous pulp discharge smoothly are necessary for matching charging with discharge, that is charging rate is only had to can be only achieved continuous negative pressure conveying effect less than or equal to discharge velocity, to be on the safe side, detect equipped with level-sensing device at equipment charging aperture close beneath and complete automatic feedback control, then proving that when level-sensing device has detected material discharge velocity is partially slow, program will point out the switching frequency reported to the police and automatically accelerate twice valve.
The Motorized vacuum source of embodiment of the present invention low cost is used as power, allow material no matter in short low distance or all can realize continuously lasting vacuum (negative pressure) under farsighted distance carries (by distance limit), and transfer efficiency is high, do not waste vacuum source, suction and discharging is allowed all to remain a constant speed unimpeded state, allow this continuous way feeding function better be combined with equipment such as reactors, form the excellent system engineering of continuous suction and gap discharge.And then can replace malleation conveying eliminate dust reveal and eliminate safe hidden trouble, realize carrying material continuously, the effective discharges material of clearance-type, improve transfer efficiency, significantly make use of Motorized vacuum source, there is no the wasting of resources, it is achieved that long term distance is carried, large-tonnage conveying, dustless equalization, avoid dust pollution and solve the hidden danger of smashed district, economical and practical, durable in use.
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the claims in the present invention with this, still belong to the scope that the present invention contains.
Claims (7)
1. a platoon type continuous vacuum feeder, including feeding warehouse (16) and the blanking bin (20) being arranged on its underpart, the side of described feeding warehouse (16) is provided with charging aperture, described charging aperture is provided with pneumatic suction butterfly valve (1), drain hopper (17) it is provided with between described feeding warehouse (16) and blanking bin (20), described drain hopper (17) bottom is movably provided with convex top board valve (19), described blanking bin (20) bottom is provided with discharging opening, described discharging opening is provided with pneumatic blanking butterfly valve (22), it is characterized in that, described feeding warehouse (16) top is additionally provided with filtering cabin (13), described filtering cabin is provided with a left side in (13), right two bins, a described left side, it is respectively arranged with left room filter element (4) inside right two bins, right ventricle's filter element (12), a described left side, right two bin tops are correspondingly arranged on left air door (6) and right air door (10) respectively, the top of described left air door (6) and right air door (10) is connected with left cylinder (7) and right cylinder (8) respectively, a described left side, the side of right two bins is connected with left room blowback air bag and rapid escape valve (14) and right ventricle's blowback air bag and rapid escape valve (14) respectively, described left room blowback air bag and rapid escape valve (14), left room filter element (4), left air door (6), left cylinder (7) forms left air channel, described right ventricle's blowback air bag and rapid escape valve (14), right ventricle's filter element (12), right air door (10), right cylinder (8) forms right air channel, also include main control centre, described main control centre respectively with described left air door (6), right air door (10), convex top board valve (19) and pneumatic blanking butterfly valve (22) connect, for controlling left air door (6), right air door (10), the switch of convex top board valve (19) and pneumatic blanking butterfly valve (22) and switch time.
2. platoon type continuous vacuum feeder according to claim 1, it is characterised in that be provided with cyclonic separation cone bucket (15) between described feeding warehouse (16) and filtering cabin (13).
3. platoon type continuous vacuum feeder according to claim 1, it is characterised in that described feeding warehouse (16) and filtering cabin (13) periphery, junction are provided with cylinder clip (2).
4. platoon type continuous vacuum feeder according to claim 1, it is characterised in that described blanking bin (20) bottom, in inverted cone, described blanking bin (20) the bottom conical surface is provided with vibrator (21).
5. platoon type continuous vacuum feeder according to claim 1, it is characterised in that described filtering cabin (13) and its periphery, top cover junction are provided with cylinder sealing ring (5).
6. platoon type continuous vacuum feeder according to claim 1, it is characterised in that described pneumatic blanking butterfly valve (22) periphery is provided with butterfly valve seal circle (23).
7. platoon type continuous vacuum feeder according to claim 1, it is characterized in that, described feeding warehouse (16) charging aperture is arranged below level-sensing device, described level-sensing device is used for detecting and completing automatic feedback control, then proving that when level-sensing device has detected material discharge velocity is partially slow, program will point out the switching frequency reported to the police and automatically accelerate twice valve.
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| CN201310192604.6A CN104176503B (en) | 2013-05-22 | 2013-05-22 | Platoon type continuous vacuum feeder |
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| CN201310192604.6A CN104176503B (en) | 2013-05-22 | 2013-05-22 | Platoon type continuous vacuum feeder |
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| CN104176503A CN104176503A (en) | 2014-12-03 |
| CN104176503B true CN104176503B (en) | 2016-06-29 |
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| CN113276378B (en) * | 2021-06-28 | 2022-02-08 | 江苏金韦尔机械有限公司 | Exempt from granulation rich mineral paper production line |
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