CN204234351U - Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate - Google Patents
Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate Download PDFInfo
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- CN204234351U CN204234351U CN201420225314.7U CN201420225314U CN204234351U CN 204234351 U CN204234351 U CN 204234351U CN 201420225314 U CN201420225314 U CN 201420225314U CN 204234351 U CN204234351 U CN 204234351U
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- negative pressure
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- pressuren zone
- pressure air
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Abstract
The utility model discloses a kind of Apparatus and method for utilizing negative pressure air system to improve feed separation rate, the below of the described sieve that shakes is provided with negative pressure air system, described negative pressure air system comprises negative pressure air chamber, and described negative pressure air chamber comprises first negative pressuren zone with the first negative pressure and second negative pressuren zone with the second negative pressure, the first described negative pressuren zone connects with the described sieve that shakes, the second described negative pressuren zone connects with the first negative pressuren zone, and described conveyer is positioned at the second negative pressuren zone, the absolute value of the first described negative pressure is less than the absolute value of the second negative pressure, material is by entering the first negative pressuren zone through sieve aperture after the sieve that shakes, major part drops on conveyer and sends equipment.The material that small part bulk specific gravity is little passes the first negative pressuren zone afterwards to the second negative pressuren zone, and stall drops on described conveyer in the second negative pressuren zone.<b/>
Description
Technical field
The utility model belongs to feed separation apparatus field, is specifically related to a kind of Apparatus and method for utilizing negative pressure air system to carry out feed separation.
Background technology
In prior art, the general sieve that shakes that adopts sieves material, rejects the defective material that form has larger difference, to improve materials quality.But for some light weights, crisp fritter, frangible material, bulk material is usually concentrated to be stacked on and is shaken on sieve, after vibration, qualified material is difficult to pass rapidly through sieve aperture by Action of Gravity Field, thus is screened by complete, but only has part by complete screening, after repeatedly vibrating, originally complete material (tobacco leaf, pipe tobacco) may be shaken broken, thus reduces product quality, causes loss of material.
Such as, in current domestic redrying, fiber tow production technique, in feed separation technique, different shape feed separation method is the core link in tobacco processing.Drop on shake on sieve when large quantities of pipe tobaccos is stacking, constantly material is thrown obliquely screen by the up-down vibration of the sieve that shakes.Because pipe tobacco can not at the complete drawout in sieve that shakes, therefore overlaying state is serious mutually, and pipe tobacco is too low by the First Pass Yield of sieve aperture, can only be separated, or the amplitude adding good sieve is separated with frequency by the process of falling of throwing repeatedly.So not only separation rate is low, and cause make in a large number broken, loss increase.In the making that same situation is also present in the unclassified stores such as tealeaves and separating technology.
Summary of the invention
The purpose of this utility model is the technical deficiency for above-mentioned existence, provides a kind of Apparatus and method for utilizing negative pressure system to carry out feed separation, can improve material once by the separation rate of the sieve that shakes, reduce material and make broken, increase production capacity.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the Apparatus and method for utilizing negative pressure air system to carry out feed separation comprises the material casting storehouse with feeding mouth, the material conveying device, the negative pressure air system that are arranged on the sieve that shakes below described material casting storehouse, are positioned at the described sieve below that shakes, it is characterized in that: the below of the described sieve that shakes is provided with negative pressure air system, described negative pressure air system comprises negative pressure air chamber, and described negative pressure air chamber comprises first negative pressuren zone with the first negative pressure and second negative pressuren zone with the second negative pressure, the first described negative pressuren zone connects with the described sieve that shakes, the second described negative pressuren zone connects with the first negative pressuren zone, and described conveyer is positioned at the second negative pressuren zone, the absolute value of the first described negative pressure is less than the absolute value of the second negative pressure, material is by entering the first negative pressuren zone through sieve aperture after the sieve that shakes, major part drops on conveyer and sends equipment.The material that small part bulk specific gravity is little passes the first negative pressuren zone afterwards to the second negative pressuren zone, and stall drops on described conveyer in the second negative pressuren zone.
Described negative pressure air chamber is sieved by shaking and wallboard surrounds, a pair baffle plate that bottom is close is gradually provided with in described negative pressure cavity, described negative pressure cavity is separated to form the first described negative pressuren zone and the second negative pressuren zone by the baffle plate described in a pair, described shaking surrounds described first negative pressuren zone of lower openings between sieve lower surface and the upper surface of the baffle plate described in a pair, form the second described negative pressuren zone between the lower surface of the medial surface of described wallboard and the baffle plate described in a pair.
Described negative pressure air system comprises the negative-pressure air duct being separately positioned on the second described negative pressuren zone for a pair, and described negative-pressure air duct is positioned at the middle and upper part of the second described negative pressuren zone, i.e. distance material transmitting device 5mm ~ 500mm.
Described negative-pressure air duct is provided with the cumulative aperture of size, and before and after ensureing in described negative pressure air chamber, blast is basically identical, and described orifice center direction of principal axis departs from vertical direction angle is 0 ° ~ 90 °.
Described negative pressure cavity is airtight space, also comprise the double-plate gas lock with discharging opening be connected with described negative pressure air chamber, described double-plate gas lock has the first jam plate and the second jam plate that only can open to the direction contrary with negative pressure, the first described jam plate is positioned at the below of described conveyer end, the second described jam plate be positioned at the first described jam plate below and for by described discharging opening shutoff.
Described baffle plate becomes 20 ° ~ 60 ° angles with vertical direction.
Negative pressure air system described in the utility model is a kind of important component part of feed separation equipment.This separation equipment comprises the material casting storehouse with feeding mouth, the material conveying device being arranged on the sieve that shakes below material casting storehouse, being positioned at the sieve below that shakes, between the below that negative pressure air system is then arranged on the sieve that shakes and the top of described conveyer.
Negative pressure air system comprises negative pressure air chamber, and negative pressure air chamber comprises first negative pressuren zone with the first negative pressure and second negative pressuren zone with the second negative pressure, first negative pressuren zone connects with the sieve that shakes, second negative pressuren zone connects with the first negative pressuren zone, and conveyer is positioned at the second negative pressuren zone, the absolute value of the first negative pressure is greater than the absolute value of the second negative pressure, material accelerates across sieve aperture under gravity and downward negative-pressure sucking acting in conjunction, enter the first negative pressuren zone, from the first negative pressuren zone out after, come the second negative pressuren zone, air pressure reduces suddenly, speed reduces, and stall drops on conveyer in the second negative pressuren zone.
The utility model can improve the First Pass Yield of material, reduces the vibration number in feed separation process, thus reduction is made broken, improves production capacity and quality of finished.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that route schematic diagram shed by material of the present utility model.
Fig. 3 is the profile in the direction of A-A shown in Fig. 1.
In accompanying drawing: 1, feeding mouth; 2, material casting storehouse; 3, shake sieve; 4, lifting winding-up mouth; 5, negative pressure cavity; 51, base plate; 52, side plate; 6, blast regulates mouth; 7, negative pressure air channel; 8, negative-pressure air fan; 9, bypass pipe; 10, double-plate gas lock; 11, hair round brush; 12, conveyer; 13, baffle plate; 14, positive pressure ventilation pipe; 15, loading head; 16, garbage collector; 21, exhaust outlet; 101, the first jam plate; 102, the second jam plate; 103, discharging opening.
Detailed description of the invention
The Apparatus and method for that the utility model utilizes negative pressure air system to improve feed separation rate comprises the material casting storehouse with feeding mouth, be arranged on the sieve that shakes below described material casting storehouse, be positioned at the material conveying device of the described sieve below that shakes, described negative pressure air Operation system setting is in shaking between sieve and conveyer, described negative pressure air system comprises negative pressure air chamber, and described negative pressure cavity comprises first negative pressuren zone with the first negative pressure and second negative pressuren zone with the second negative pressure, the first described negative pressuren zone connects with the described sieve that shakes, the second described negative pressuren zone connects with the first negative pressuren zone, and described conveyer is positioned at the second negative pressuren zone, due to above-mentioned design, the less material of wind speed directly falls on conveyer through the sieve that shakes, partial material enters the second negative pressuren zone, controlling sections size can ensure that material cannot by this face.
Further, described negative pressure cavity sieves by shaking and wallboard surrounds, a pair baffle plate that bottom is close is gradually provided with in described negative pressure cavity, described negative pressure cavity is separated to form the first described negative pressuren zone and the second negative pressuren zone by the baffle plate described in a pair, described shaking surrounds described first negative pressuren zone of lower openings between sieve lower surface and the upper surface of the baffle plate described in a pair, form the second described negative pressuren zone between the lower surface of the medial surface of described wallboard and the baffle plate described in a pair.By a pair baffle plate, negative pressure cavity is divided into two, is arranged so that structure of the present utility model is more compact, exquisite like this, both achieved functional requirement, do not take larger space again simultaneously.
Furthermore, for avoiding material to enter in negative pressure air system with air-flow, described negative pressure system comprises the negative pressure air channel being separately positioned on described negative pressure cavity both sides for a pair, and described negative pressure air channel is positioned at the second described negative pressuren zone.
Preferably, close gradually a pair baffle plate in lower end is the boundary of first, second negative pressuren zone, and described baffle plate can ensure that material drops on conveyer further, and can not enter into negative pressure system.
Preferably, described negative pressure system also comprises negative-pressure air fan, and described negative pressure cavity is positioned at the inlet side of described negative-pressure air fan, and described lifting winding-up mouth is positioned at the air side of described negative-pressure air fan.
Further, described negative pressure system also comprises the double-plate gas lock with discharging opening be connected with described negative pressure cavity, described double-plate gas lock has the first jam plate and the second jam plate that only can open to the direction contrary with negative pressure, the first described jam plate is positioned at the below of described conveyer end, the second described jam plate be positioned at the first described jam plate below and for by described discharging opening shutoff.
Below in conjunction with embodiment shown in the drawings, the utility model is described in detail below, wherein described in this description " on ", D score position relationship is corresponding with the upper and lower position relation shown in accompanying drawing 1, corresponding " front " side described in description, right side in accompanying drawing 1, correspondingly, left side in accompanying drawing 1 is " afterwards " side described in description, and the left and right side in accompanying drawing 2 is the "left", "right" side described in corresponding description respectively.
Shown in accompanying drawing 1, the separation equipment belonging to this negative pressure system comprises: have the material casting storehouse 2 of feeding mouth 1, be arranged on the sieve 3 that shakes below described material casting storehouse 2, be positioned at material conveying device 12 below the described sieve 3 that shakes.In the present embodiment, this separation equipment is long 4.8 meters, the thin-and-long equipment of wide 1.2 meters, and feeding mouth 1 is positioned at the rear end in material casting storehouse 2, and the rear end in material casting storehouse 2 also has lifting winding-up mouth 4, and described feeding mouth 1 is positioned at the top of described lifting winding-up mouth 4.For the air pressure in balance material casting storehouse, the front upper in material casting storehouse 2, offers the exhaust outlet 21 communicated with the external world.
See accompanying drawing 2, for improving the separation rate of material, the below of the described sieve 3 that shakes is provided with negative pressure system.Described negative pressure system comprises negative pressure cavity 5, is separately positioned on the negative pressure air channel 7 of described negative pressure cavity 5 arranged on left and right sides for a pair, and described material conveying device 12 is positioned at described negative pressure cavity 5.In the present embodiment, conveyer adopts belt transport structure.Negative pressure cavity 5 is surrounded jointly by shake sieve 3 and wallboard, negative pressure cavity 5 only on top by sieve aperture and material casting storehouse 2 air-flow UNICOM.The wallboard being used for surrounding negative pressure cavity in the present embodiment comprises base plate 51, is positioned at the pair of side plates 52 of base plate both sides and is positioned at the end plates of rear end, and in other embodiments, this wallboard also can be integrally formed.A pair baffle plate 13 that bottom is close is gradually provided with in described negative pressure cavity 5, described negative pressure cavity 5 is separated to form the first negative pressuren zone and the second negative pressuren zone by the baffle plate 13 described in a pair, the first negative pressuren zone of lower openings is surrounded between the upper surface of the described baffle plate 13 described in sieve 3 lower surface and a pair that shakes, its complementary space of negative pressure cavity 5 forms the second negative pressuren zone, the first negative pressuren zone and the second negative pressuren zone airflow connection.
The first described negative pressuren zone connects with the described sieve 3 that shakes, and the second described negative pressuren zone connects with the first negative pressuren zone.Therefore material is through sieve aperture under negative pressure effect, enters the first negative pressuren zone, directly drops on conveyer.Because the bottom of a pair baffle plate 13 is close gradually, therefore material can not directly be taken away by negative pressure wind after entering the first negative pressuren zone through the sieve that shakes.Part slight small item material then enter the second negative pressuren zone with negative pressure wind after negative pressure reduce suddenly, material gravitate drops on conveyer 12, and material is fed forward to front equipment end by conveyer 12 then.And defective material is through the continuous vibration of the sieve that shakes, finally come forward material casting storehouse 2 garbage collector 16 foremost.
Be inhaled in negative pressure air channel 7 for preventing material, described negative pressure air channel 7 is positioned at the second described negative pressuren zone top, the distance of lower end to described conveyer and the distance to described side plate must ensure that isobaris surface that between described baffle plate and described side plate, sectional area is maximum does not have qualified material and passes through, and material can drop on conveyer 12.Meanwhile, negative pressure system of the present utility model also comprises the design of air current composition in negative pressure cavity.Negative-pressure air duct arranges the aperture that row's diameter is gradually large, and the central axis direction in aperture departs from vertical direction certain angle towards side, make the wind speed on baffle plate lower end vertical plane described in whole negative pressure cavity basically identical.In feed separation process, stable and good air current composition can improve feed separation efficiency.
Described negative pressure system also comprises negative-pressure air fan 8, in the present embodiment, negative pressure air channel 7 and lifting winding-up mouth 4 adopt circulation wind path to design, and described negative pressure cavity 5 is positioned at the inlet side of described negative-pressure air fan 8, and described lifting winding-up mouth 4 is positioned at the air side of described negative-pressure air fan 8.For ease of regulating the blast at lifting winding-up mouth 4 place, the pipeline between the upstream of the downstream of negative-pressure air fan 8 and lifting winding-up mouth 4 being also provided with pressure and regulating bypass pipe 9, to regulate the air quantity needed for lifting.
Described negative pressure system also comprises the double-plate gas lock 10 with discharging opening 103 be connected with described negative pressure cavity 5, described double-plate gas lock 10 has the first jam plate 101 and the second jam plate 102 only can opened to the direction contrary with negative pressure, the first described jam plate 101 is positioned at the below of described conveyer 12 end, the second described jam plate 102 be positioned at the first described jam plate 101 below and for by described discharging opening 103 shutoff.The below of the end of conveyer 12 also arranges hairiness round brush 11, and the bristle of hair round brush 11 is close to the lower surface of conveyer belt, avoids again bringing material into negative pressure cavity.
During separation equipment work, the space, upside of the first jam plate 101 is connected with negative pressure cavity, first jam plate 101 is in normally off by suction function, and the pressure in space between the first jam plate 101 and the second jam plate 102 is identical with atmospheric pressure, and the second jam plate 102 is in open mode.For avoiding negative pressure system air inlet release, when the qualified material weight that the first jam plate 101 is piled up reaches certain value, overcome the negative pressure in negative pressure cavity, first jam plate 101 is opened downwards, second jam plate 102 rapid closing under negative pressure, therefore material can be discharged on the second jam plate 102, after the material release on the first jam plate 101 is complete, first jam plate 101 is closed again by negative pressure effect, second jam plate 102 is opened, material falls from discharging opening 103, the below of discharging opening 103 is provided with loading head 15, qualified material finally transfers to downstream by loading head 15.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (6)
1. utilize negative pressure air system to improve an equipment for feed separation rate, comprise there is feeding mouth material casting storehouse, be arranged on the sieve that shakes below described material casting storehouse, be positioned at material conveying device, negative pressure air system below the described sieve that shakes, it is characterized in that: the below of the described sieve that shakes is provided with negative pressure air system, described negative pressure air system comprises negative pressure air chamber, and described negative pressure air chamber comprises first negative pressuren zone with the first negative pressure and second negative pressuren zone with the second negative pressure, the first described negative pressuren zone connects with the described sieve that shakes, the second described negative pressuren zone connects with the first negative pressuren zone, and described conveyer is positioned at the second negative pressuren zone, the absolute value of the first described negative pressure is less than the absolute value of the second negative pressure, material is by entering the first negative pressuren zone through sieve aperture after the sieve that shakes, major part drops on conveyer and sends equipment, the material that small part bulk specific gravity is little passes the first negative pressuren zone afterwards to the second negative pressuren zone, and stall drops on described conveyer in the second negative pressuren zone.
2. the equipment utilizing negative pressure air system to improve feed separation rate according to claim 1, it is characterized in that: described negative pressure air chamber is sieved by shaking and wallboard surrounds, a pair baffle plate that bottom is close is gradually provided with in described negative pressure air chamber, described negative pressure cavity is separated to form the first described negative pressuren zone and the second negative pressuren zone by the baffle plate described in a pair, described shaking surrounds described first negative pressuren zone of lower openings between sieve lower surface and the upper surface of the baffle plate described in a pair, the second described negative pressuren zone is formed between the lower surface of the medial surface of described wallboard and the baffle plate described in a pair.
3. the equipment utilizing negative pressure air system to improve feed separation rate according to claim 2, it is characterized in that: described negative pressure air system comprises the negative-pressure air duct being separately positioned on the second described negative pressuren zone for a pair, described negative-pressure air duct is positioned at the middle and upper part of the second described negative pressuren zone, i.e. distance material transmitting device 5mm ~ 500mm.
4. the equipment utilizing negative pressure air system to improve feed separation rate according to claim 3, it is characterized in that: described negative-pressure air duct is provided with the cumulative aperture of size, before and after ensureing in described negative pressure air chamber, blast is basically identical, and described orifice center direction of principal axis departs from vertical direction angle is 0 ° ~ 90 °.
5. the equipment utilizing negative pressure air system to improve feed separation rate according to claim 1, it is characterized in that: described negative pressure cavity is airtight space, also comprise the double-plate gas lock with discharging opening be connected with described negative pressure air chamber, described double-plate gas lock has the first jam plate and the second jam plate that only can open to the direction contrary with negative pressure, the first described jam plate is positioned at the below of described conveyer end, the second described jam plate be positioned at the first described jam plate below and for by described discharging opening shutoff.
6. the equipment utilizing negative pressure air system to improve feed separation rate according to claim 2, is characterized in that: described baffle plate becomes 20 ° ~ 60 ° angles with vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225314.7U CN204234351U (en) | 2014-05-05 | 2014-05-05 | Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225314.7U CN204234351U (en) | 2014-05-05 | 2014-05-05 | Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate |
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| CN204234351U true CN204234351U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420225314.7U Withdrawn - After Issue CN204234351U (en) | 2014-05-05 | 2014-05-05 | Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949400A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Device and method for increasing material separation rate through negative-pressure air system |
| CN104785449A (en) * | 2015-04-30 | 2015-07-22 | 成都桐林铸造实业有限公司 | Filtering device |
| CN112122098A (en) * | 2020-09-04 | 2020-12-25 | 中国矿业大学 | Airflow step reinforced vibration screening system |
-
2014
- 2014-05-05 CN CN201420225314.7U patent/CN204234351U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949400A (en) * | 2014-05-05 | 2014-07-30 | 红塔烟草(集团)有限责任公司 | Device and method for increasing material separation rate through negative-pressure air system |
| CN103949400B (en) * | 2014-05-05 | 2016-07-06 | 红塔烟草(集团)有限责任公司 | Negative pressure air system is utilized to improve the Apparatus and method for of feed separation rate |
| CN104785449A (en) * | 2015-04-30 | 2015-07-22 | 成都桐林铸造实业有限公司 | Filtering device |
| CN112122098A (en) * | 2020-09-04 | 2020-12-25 | 中国矿业大学 | Airflow step reinforced vibration screening system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20160706 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |