CN201760405U - Feeding valve for vertical helical vibrating screen - Google Patents
Feeding valve for vertical helical vibrating screen Download PDFInfo
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- CN201760405U CN201760405U CN2010205027648U CN201020502764U CN201760405U CN 201760405 U CN201760405 U CN 201760405U CN 2010205027648 U CN2010205027648 U CN 2010205027648U CN 201020502764 U CN201020502764 U CN 201020502764U CN 201760405 U CN201760405 U CN 201760405U
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- Prior art keywords
- cone
- burden
- sieve
- guiding cone
- screen cloth
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- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 21
- 238000012216 screening Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a feeding valve for a vertical helical vibrating screen, which has reduced manufacture cost as well as reduced use and maintenance cost. The feeding valve is arranged in a storage bin and comprises a guide cone, a stirrer, an eccentric block and a regulating cone, wherein the guide cone is a big end down cone, the middle of the cone is provided with an axial through hole, and the cone is fixed on the upper end of a middle upright post; the stirrer comprises a rotating shaft rotatably inserted into the through hole of the guide cone and a stirring rod arranged at the upper end of the rotating shaft along the horizontal direction; the eccentric block is arranged at the lower end of the rotating shaft and positioned below the guide cone; and the regulating cone is a cone cylinder with a big end down structure, the inner diameter of the lower end of the regulating cone is more than the outer diameter of the lower end of the guide cone, the regulating cone is sleeved at the periphery of the guide cone and detachably arranged on the inner wall of a cover plate of a shell so as to ensure that a horizontal gap is formed between the inner peripheral wall of the regulating cone and the outer peripheral wall of the guide cone, and the gap and a vertical inlet of the screen form a volute shaped discharging hole.
Description
Technical field
The utility model relates to a kind of charging valve that is used for vibratory sieve, is specifically related to a kind of charging valve that is used for the vertical spiral vibration sieve.
Technical background
The screening plant that is applied in the powder field now mainly adopts and revolves the sieve that shakes.Vibratory sieve is a principle of utilizing the vibrating motor exciting, makes material make the great-jump-forward rectilinear motion on compass screen surface, reaches the purpose of screening with the screen cloth of reasonable coupling.This equipment screening precision is higher relatively, can reach 95%.But find that in actual applications there is following deficiency in it:
1) will improve screening precision to 97% even when higher, treating capacity can decline to a great extent, be its nominal output 1/3 in addition lower, thin especially more powder descends serious more;
2) owing to revolve the structural limitations of the sieve that shakes, the thin-walled of its sheet metal structural is difficult to bear long tired vibration, only is 2 meters so revolve the screen cloth diameter maximum of the sieve that shakes, and this just makes its treating capacity be difficult to improve, and can't adapt to the powder industry demand growing to production capacity.
From existing situation, improve treating capacity and exist bigger contradiction with improving screening precision, promptly under the certain situation of screen area, inlet amount is crossed conference and is made the part powder also not touch screen cloth just to have discharged; Powder (size ratio is near mesh size) for the near mesh particle footpath will increase the probability that it sees through screen cloth in addition, just must increase its number of times with the screen cloth contact, concrete implementation method is exactly to prolong the movement travel of powder on screen cloth, so also just prolong the time of screening, thereby reduced treating capacity.So adopt existing revolve shake the sieve this be insurmountable to contradiction.
In view of the foregoing, the applicant has developed a kind of vertical spiral vibration sieve again, and it adopts spiral mesh structure, and the area of screen cloth is significantly improved, and the movement travel that has therefore prolonged powder, makes disposal ability and screening precision improve a lot.
Traditional revolving shaken sieve in use, in order to regulate and control the blanking velocity of powder, makes it to mate the screening speed of revolving the sieve that shakes, and be general at feed bin with revolve between the charging aperture of the sieve that shakes and must be furnished with an oscillating feeder; Powder is thin more in addition, accumulation angle in feed bin will be big more, occurs " chimney phenomenon " easily, and promptly only mid portion can flow, have to be equipped with equipment such as the hopper wall vibrator powder that loosens, these corollary equipments can increase the energy consumption and the working service cost of whole system for this reason.Therefore demand urgently developing and a kind ofly can and can reduce cost and can regulate the charging valve of blanking velocity well with vertical spiral vibration sieve coupling.
Summary of the invention
The utility model has overcome deficiency of the prior art, and a kind of charging valve that is used for the vertical spiral vibration sieve is provided, and it can not only make the structure of whole vibratory sieve be simplified, and can also reduce energy consumption.
Realize that the above-mentioned purpose technical scheme is: a kind of charging valve that is used for the vertical spiral vibration sieve, described vibratory sieve comprises a base, one is installed in sieve on the base by some support springs, one is connected with the lower end of sieve and the vibrating device and that is positioned at base is installed in the feed bin of sieve upper end, described sieve comprises shell, middle standing pillar and screen cloth, described shell is one to have the cylinder of cover plate and base plate, described screen cloth is a trapezoidal screen cloth of spiral under spiraling around described middle standing pillar, described charging valve is installed in the described feed bin, and it comprises a burden-guiding cone, one agitator, one eccentric block and one is adjusted awl.Wherein:
Described burden-guiding cone is up-small and down-big and middle cone with an axially extending bore, and it is fixed on the upper end of described middle standing pillar;
Described agitator comprise one intert rotationally level that rotating shaft and in the through hole of described burden-guiding cone is installed in the rotating shaft upper end to stirring rod;
Described eccentric block is installed in the lower end of described rotating shaft and is positioned at the below of described burden-guiding cone;
Described adjustment awl is up big and down small circular cone tube, its bottom diameter is greater than the lower end external diameter of described burden-guiding cone, it is sleeved on the peripheral of described burden-guiding cone and is removably mounted on the inwall of cover plate of described shell, so that between the periphery wall of the internal perisporium of described adjustment awl and described burden-guiding cone the formation level to the space, this space and screen cloth vertical to the feed opening of going into interruption-forming one scroll casing shape.
The above-mentioned charging valve that is used for the vertical spiral vibration sieve, wherein, described adjustment awl is by on the inwall of cover plate of adjusting bolt and liftably being installed in described shell, with the size in the space between the periphery wall of the internal perisporium of adjusting described adjustment awl and described burden-guiding cone.
The above-mentioned charging valve that is used for the vertical spiral vibration sieve wherein, connects by a canvas dirt-proof boot between the lower end of described feed bin and the cover plate of described shell.
The technical scheme that is used for the charging valve of vertical spiral vibration sieve of the present utility model, itself need not power source, only utilize the vibration of vibratory sieve, drive the rotation of agitator again by eccentric block, not only reduced energy consumption, can also save two auxiliary devices of the prior art, make that the structure of whole vertical spiral vibration sieve is simplified, thereby reduced manufacturing cost and working service cost.
Description of drawings
Fig. 1 is the structural representation of vertical spiral vibration sieve;
Fig. 2 is the structural representation that is used for the charging valve of vertical spiral vibration sieve of the present utility model;
Fig. 3 is the powder flow path schematic diagram that is used for the charging valve of vertical spiral vibration sieve of the present utility model.
The specific embodiment
In order to understand the technical solution of the utility model better, also be described in detail in conjunction with the accompanying drawings below by specific embodiment.
See also Fig. 1, vertical spiral vibration sieve comprises that a base 1, is installed in the charging valve 8 of feed bin 7 by the feed bin 7 and that some support springs 6 are installed in that sieve 3, on the base 1 is connected with the lower end of sieve 3 and the vibrating device 2, that is arranged in base 1 is installed in sieve 3 upper ends.Sieve 3 is made of shell 4, middle standing pillar 51 and screen cloth 5.Shell 4 is one to have the cylinder of cover plate 40 and base plate.Middle standing pillar 51 vertically stands on the central authorities of shell 4; Spiral under screen cloth 5 is around middle standing pillar 51 spirals is trapezoidal, it comprises bottom surface screen cloth 52, side screen cloth 53 and top board 54, the inner edge of bottom surface screen cloth 52 is fixed on the middle standing pillar 51 and around middle standing pillar 51 spirals, and the outer rim of bottom surface screen cloth 52 is connected with the lower end of side screen cloth 53; The inner edge of top board 54 is fixed on the middle standing pillar 51 and around middle standing pillar 51 spirals, and the outer rim of top board 54 is connected with the upper end of side screen cloth 53, makes side screen cloth 53 and middle standing pillar 51 coaxial settings.
See also Fig. 2 and Fig. 3 again, the direction of arrow is represented the flow path of powder among the figure.The charging valve that is used for the vertical spiral vibration sieve of the present utility model comprises a burden-guiding cone 81, an agitator, an eccentric block 84 and an adjustment awl 85, wherein:
Burden-guiding cone 81 is up-small and down-big and middle cone with an axially extending bore, and it is fixed on the upper end of middle standing pillar 51;
Agitator comprise one intert rotationally level that rotating shaft 82 and in the through hole of burden-guiding cone 814 is installed in rotating shaft 82 upper ends to stirring rod 83;
Adjusting awl 85 is up big and down small circular cone tube, its bottom diameter is greater than the lower end external diameter of burden-guiding cone 81, it is sleeved on the peripheral of burden-guiding cone 81 and is removably mounted on the inwall of cover plate 40 of shell 4, so that adjust formation level between the periphery wall of the internal perisporium of awl 85 and burden-guiding cone 81 to the space, this space and screen cloth vertical to the feed opening 86 of going into interruption-forming one scroll casing shape.Adjust awl 85 by on the inwall of cover plate 40 of adjusting bolt and liftably being installed in shell 4, with the pore size between the periphery wall of regulating the internal perisporium of adjusting awl 85 and guide 81.
Connect by a canvas dirt-proof boot 87 between the cover plate 40 of the lower end of feed bin 7 and shell 4.
The operation principle that is used for the charging valve of vertical spiral vibration sieve of the present utility model is:
Vertical spiral vibration sieve has along the circumferential direction a turning moment when work, under this turning moment effect, drive stirring bars 83 rotations by eccentric block 84, and the powders in the feed bin 7 are loosened, and makes its smooth blanking.Powder flows to screen cloth from the gap between burden-guiding cone 81 and the adjustment awl 85.Because burden-guiding cone 81 fixes, can oscilaltion and adjust awl 85 by adjusting bolt, adjust awl 85 space of rising then and strengthen, to adjust awl 85 and descend then that the space reduces, the also change thereupon of the flow of powder is complementary flow and sieve treating capacity.Utilize the whirling vibration of vibratory sieve simultaneously, the effect of loosening powder is also played in this space.
Since the space be level to, and the inlet of the screen cloth that is attached thereto be vertically to, both spatially are the rotation relationships of 90 degree, thereby form the feed opening 86 of a scroll casing shape, and powder can be smoothly transitted.Turning moment when utilizing sieve 3 work, powder track in the shape of a spiral is descending, the feed opening 86 of scroll casing shape also with the helical trajectory coupling of screen cloth, thereby reduce the wearing and tearing of powder to apparatus casing.
The effect of stirring rod 83 is the hopper wall vibrators that replace available technology adopting, is used to dredge flowing of feed bin 7 interior powders, and adjusting awl 85 and burden-guiding cone 81 is to play the effect of regulating powder flow rate, is used for replacing the oscillating feeder of available technology adopting,
Above embodiment has been described in detail the utility model, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details in the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection domain of the present utility model.
Claims (3)
1. one kind is used for the charging valve that vertical spiral vibration sieves, described vibratory sieve comprises a base, one is installed in sieve on the base by some support springs, one is connected with the lower end of sieve and the vibrating device and that is positioned at base is installed in the feed bin of sieve upper end, described sieve comprises shell, middle standing pillar and screen cloth, described shell is one to have the cylinder of cover plate and base plate, described screen cloth is a trapezoidal screen cloth of spiral under spiraling around described middle standing pillar, it is characterized in that, described charging valve is installed in the described feed bin, it comprises a burden-guiding cone, one agitator, one eccentric block and one is adjusted awl
Described burden-guiding cone is up-small and down-big and middle cone with an axially extending bore, and it is fixed on the upper end of described middle standing pillar;
Described agitator comprise one intert rotationally level that rotating shaft and in the through hole of described burden-guiding cone is installed in the rotating shaft upper end to stirring rod;
Described eccentric block is installed in the lower end of described rotating shaft and is positioned at the below of described burden-guiding cone;
Described adjustment awl is up big and down small circular cone tube, its bottom diameter is greater than the lower end external diameter of described burden-guiding cone, it is sleeved on the peripheral of described burden-guiding cone and is removably mounted on the inwall of cover plate of described shell, so that between the periphery wall of the internal perisporium of described adjustment awl and described burden-guiding cone the formation level to the space, this space and screen cloth vertical to the feed opening of going into interruption-forming one scroll casing shape.
2. the charging valve that is used for the vertical spiral vibration sieve according to claim 1, it is characterized in that, described adjustment awl is by on the inwall of cover plate of adjusting bolt and liftably being installed in described shell, with the size in the space between the periphery wall of the internal perisporium of adjusting described adjustment awl and described burden-guiding cone.
3. the charging valve that is used for the vertical spiral vibration sieve according to claim 1 is characterized in that, connects by a canvas dirt-proof boot between the lower end of described feed bin and the cover plate of described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205027648U CN201760405U (en) | 2010-08-24 | 2010-08-24 | Feeding valve for vertical helical vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205027648U CN201760405U (en) | 2010-08-24 | 2010-08-24 | Feeding valve for vertical helical vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760405U true CN201760405U (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205027648U Expired - Fee Related CN201760405U (en) | 2010-08-24 | 2010-08-24 | Feeding valve for vertical helical vibrating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007854A (en) * | 2011-09-23 | 2013-04-03 | 中国石油化工股份有限公司 | Stirring tank |
-
2010
- 2010-08-24 CN CN2010205027648U patent/CN201760405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007854A (en) * | 2011-09-23 | 2013-04-03 | 中国石油化工股份有限公司 | Stirring tank |
| CN103007854B (en) * | 2011-09-23 | 2015-04-29 | 中国石油化工股份有限公司 | Stirring tank |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20120824 |