CN205393004U - Suction formula air current sieve - Google Patents
Suction formula air current sieve Download PDFInfo
- Publication number
- CN205393004U CN205393004U CN201620173207.3U CN201620173207U CN205393004U CN 205393004 U CN205393004 U CN 205393004U CN 201620173207 U CN201620173207 U CN 201620173207U CN 205393004 U CN205393004 U CN 205393004U
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- screen box
- dust
- screen
- sieve
- suction
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Abstract
The utility model provides a suction formula air current sieve, relates to material sieving technology field, and that solve is the technical problem who improves screening efficiency and grade quality. This air current sieve reaches and installs the sieve case on the base frame respectively including base frame, centrifugal fan for the vibrating device of drive sieve case vibration, and install the at least one deck screen cloth at the sieve incasement, its characterized in that: the feed inlet has been seted up to the upper end of sieve case to be equipped with suction gas flow tube way in the feed inlet department of sieve case, the feed inlet of the air inlet orientation sieve case that suction gas flow tube said, but centrifugal fan's air inlet is received through an electronic air register in the gas outlet that suction gas flow tube said, and the bottom of sieve case is equipped with and is used for drawing the dust absorption pipeline that the dust was leaked in sieve bottom of the case portion, the dust absorption pipeline is said with suction gas flow tube and is communicate each other. The utility model provides an air current sieve is little to the influence of all ring edge borders.
Description
Technical field
This utility model relates to material screening technical field, particularly relates to the sucking type airflow screen of a kind of efficiently big ability.
Background technology
Vibrosieve is to utilize produced by oscillator exciting the vibration of reciprocating rotary type to work, it is achieved to granule, the screening of powder material and classification, be widely used in the fields such as building materials, metallurgy, mine, colliery.Existing vibrosieve is generally made up of vibrator, screen box, supporting or the part such as suspension arrangement, actuating device, and essentially unenclosed construction, operating noise is big, dust is heavier；Separate unit vibrating screen classifier can be assigned to 4 layers of screen cloth, can go out 2-5 grade by continuous sorting, and screening production capacity is less than 400t/h.Along with technological progress, and the pay attention to day by day that people are to environmental protection, existing vibrosieve can not meet demand well, can also realize the new product of bigger sieving capacity in the urgent need to a kind of both environment-friendly high-efficiencies.Find through research and experiment, although existing Colophonium sieve also can sieve the material of 6 grades, but the most great talent 300t/h of production capacity, iff passing through increasing screen cloth face, overall dimensions, and the mode of oscillation power increases production capacity, it is very huge that the problem brought is not only overall dimensions, and screen life-span sharply declines, and the reliability of equipment can not be guaranteed.It addition, often have dust leakage bottom the screen box of vibrosieve, thus surrounding enviroment are impacted, it is necessary to human at periodic intervals clears up.
Utility model content
For drawbacks described above, this utility model provides one that screening usefulness and grade quality and sucking type airflow screen that surrounding enviroment impact is little can be greatly improved.
For achieving the above object, the technical solution of the utility model is: a kind of sucking type airflow screen, including base frame, centrifugal blower, and it is separately mounted to the screen box on base frame, for the vibrating device driving screen box to vibrate, and it is arranged at least one of which screen cloth in screen box, it is characterized in that: the upper end of described screen box offers charging aperture, and it is provided with suction airstream pipeline at the charging aperture place of screen box, the air inlet of suction airstream pipeline is towards the charging aperture of screen box, the air inlet of centrifugal blower is received by an electronic adjustable ventilation door in the gas outlet of suction airstream pipeline, the bottom of screen box is provided with the dust sucting pipeline for drawing screen box bottom leakage dust, described dust sucting pipeline and suction airstream pipeline are interconnected.
Further, the bottom surface of described dust sucting pipeline is curved, and offers the dust suction air port being made up of multiple air suction openings in the bottom surface of dust sucting pipeline, and is provided with the dust suction shrouding for regulating dust suction air port aperture in the bottom surface of dust sucting pipeline.
Further, five layers of screen cloth that laying and sieve aperture reduce successively successively from top to bottom are installed in described screen box.
Further, it is provided with integral type dust cover outside described screen box.
Further, described vibrating device includes the vibrating motor being fixed on dust cover, is fixed on the vibrator on screen box, and described vibrating motor is connected by belt with vibrator.
Further, being provided with cutting plate in described screen box, described cutting plate is laid in the underface of charging aperture, and cutting plate is a flat board, and the upper face of cutting plate is fixed with multiple baffle plates that uniform intervals is laid.
Further, the exit side of described screen box is provided with the guide case of translatable separation.
The sucking type airflow screen that this utility model provides, the air-flow produced by suction airstream pipeline is stirred and jointly coordinates with the vibration of screen box, the tiny dust of part or granule (less than 0.025mm particle diameter) is made to be directly separating in nearly feeding mouth section, thus the screening usefulness of equipment is greatly improved, maximum can arrive 600t/h, the quality of each grade after simultaneously also improving screening, can by dust content in material about 5%, it is achieved powder containing quantity controls；And when material is sieved, it is also with dust sucting pipeline and siphons away the leakage dust bottom screen box, the impact on surrounding enviroment can be reduced, and below charging aperture, adopt the cutting plate of cellular-type, it is achieved that the uniformity of charging, be favorably improved screening usefulness；And adopt separable guide case, easy to maintenance, there is hommization；And adopting Integral dust cover, decrease dust emission during production, environmental benefit is notable.
Accompanying drawing explanation
Fig. 1 is the front view of the sucking type airflow screen of this utility model embodiment；
Fig. 2 is the top view of the sucking type airflow screen of this utility model embodiment；
Fig. 3 is the left view of the sucking type airflow screen of this utility model embodiment；
Fig. 4 is the structure upward view of the dust sucting pipeline in the sucking type airflow screen of this utility model embodiment；
Fig. 5 is the sectional view after the line A-A cutting along Fig. 4 of the dust sucting pipeline in the sucking type airflow screen of this utility model embodiment；
Fig. 6 is the sectional view after the line B-B cutting along Fig. 4 of the dust sucting pipeline in the sucking type airflow screen of this utility model embodiment；
Fig. 7 is the sectional view of the cutting plate in the sucking type airflow screen of this utility model embodiment；
Fig. 8 is the top view of the cutting plate in the sucking type airflow screen of this utility model embodiment；
Fig. 9 is the service mode schematic diagram of the sucking type airflow screen of this utility model embodiment.
Detailed description of the invention
Illustrate embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing; but the present embodiment is not limited to this utility model; every employing analog structure of the present utility model and similar change thereof; all should listing protection domain of the present utility model in, the pause mark in this utility model all represents the relation of sum.
As shown in Figure 1-Figure 3, a kind of sucking type airflow screen that this utility model embodiment provides, including base frame 10, centrifugal blower (not shown), and it is arranged on the screen box 1 on base frame 10 by a support arrangement 5, for the vibrating device 3 driving screen box 1 to vibrate, and it is arranged at least one of which screen cloth 2 in screen box 1, it is characterized in that: the upper end of described screen box 1 offers charging aperture 6, and it is provided with suction airstream pipeline 7 at charging aperture 6 place of screen box, the air inlet of suction airstream pipeline 7 is towards the charging aperture 6 of screen box, the air inlet of centrifugal blower is received by an electronic adjustable ventilation door 13 in the gas outlet of suction airstream pipeline 7, the bottom of screen box 1 is provided with the dust sucting pipeline 8 for drawing screen box bottom leakage dust, described dust sucting pipeline 8 is interconnected with suction airstream pipeline 7.
In this utility model embodiment, five layers of screen cloth 2 that laying and sieve aperture reduce successively successively from top to bottom are installed in described screen box 1.
In this utility model embodiment, integral type dust cover 4 it is provided with outside described screen box, described vibrating device includes the vibrating motor being fixed on dust cover 4, it is fixed on the vibrator on screen box 1, described vibrating motor and vibrator are connected by belt and realize transmission, are driven screen cloth 2 to carry out vibrosieve by screen box 1 during work；
In this utility model embodiment, the exit side of described screen box 1 is provided with the guide case 11 of translatable separation, guide case 11 is guided to corresponding discharge point for each specification pellet sieving out by screen box, base frame 10 is provided with track, guide case 11 is arranged on the track of base frame 10 by roller, when airflow screen needs to carry out internal maintenance and maintenance, guide case 11 is moved along guide rail, so as to separate (as shown in Figure 9) with screen box, maintainer can enter from casing end, convenient for maintaining, has hommization.
As shown in Figure 7, Figure 8, in this utility model embodiment, cutting plate 12 it is provided with in described screen box, described cutting plate 12 is laid in the underface of charging aperture, cutting plate 12 is a flat board, the upper face of cutting plate 12 is fixed with multiple baffle plates 15 that uniform intervals is laid, cutting plate can form backing strap on the one hand, material is avoided to be directly impinging on screen cloth, improve the service life of screen cloth, on the other hand uniform baffle plate can make the material can as homogeneously as possible to compass screen surface feeding, it is to avoid material is concentrated and affected screening efficiency.
As Figure 4-Figure 6, in this utility model embodiment, the bottom surface of described dust sucting pipeline 8 is curved, and offers the dust suction air port being made up of multiple air suction openings in the bottom surface of dust sucting pipeline 8, and is provided with the dust suction shrouding 14 for regulating dust suction air port aperture in the bottom surface of dust sucting pipeline.
The method for sieving of the sucking type airflow screen of this utility model embodiment, it is characterised in that specifically comprise the following steps that
The first step, calculates granule suspension gas speed according to the density of pellet to be sieved, mean diameter；
Theoretical according to particles settling, have:
For the quasi-number of Archimedes, Re is Reynolds number, and when Re is within the scope of pressure drag district (500 < Re < 2x105), granule suspension gas speed formula is:
Wherein,It is fast for granule suspension gas,For acceleration of gravity,For the mean diameter of pellet to be sieved,For the density of pellet to be sieved,For atmospheric density；
Second step, utilize the gas in centrifugal blower suction suction airstream pipeline and dust sucting pipeline, suction airstream conduit air inlet and dust sucting pipeline dust suction air port is made to produce suction airstream, and the air-flow velocity of suction airstream conduit air inlet and the air-flow velocity in dust sucting pipeline dust suction air port is regulated respectively by electronic adjustable ventilation door and dust suction shrouding, the air-flow velocity making suction airstream conduit air inlet keeps consistent with the granule suspension gas speed calculated, and screen box bottom leakage dust can be sucked dust sucting pipeline by the air-flow in dust sucting pipeline dust suction air port；
The suction airstream of suction airstream conduit air inlet can stir the fine granular materials in screen box, makes fine granular materials produce to suspend, by coordinating of suction airstream and vibration, it is possible to improves material screening efficiency, removal dust.
Claims (7)
1. a sucking type airflow screen, including base frame, centrifugal blower, and it is separately mounted to the screen box on base frame, for the vibrating device driving screen box to vibrate, and it is arranged at least one of which screen cloth in screen box, it is characterized in that: the upper end of described screen box offers charging aperture, and it is provided with suction airstream pipeline at the charging aperture place of screen box, the air inlet of suction airstream pipeline is towards the charging aperture of screen box, the air inlet of centrifugal blower is received by an electronic adjustable ventilation door in the gas outlet of suction airstream pipeline, the bottom of screen box is provided with the dust sucting pipeline for drawing screen box bottom leakage dust, described dust sucting pipeline and suction airstream pipeline are interconnected.
2. sucking type airflow screen according to claim 1, it is characterized in that: the bottom surface of described dust sucting pipeline is curved, and offer the dust suction air port being made up of multiple air suction openings in the bottom surface of dust sucting pipeline, and be provided with the dust suction shrouding for regulating dust suction air port aperture in the bottom surface of dust sucting pipeline.
3. sucking type airflow screen according to claim 1, it is characterised in that: five layers of screen cloth that laying and sieve aperture reduce successively successively from top to bottom are installed in described screen box.
4. sucking type airflow screen according to claim 1, it is characterised in that: it is provided with integral type dust cover outside described screen box.
5. sucking type airflow screen according to claim 4, it is characterised in that: described vibrating device includes the vibrating motor being fixed on dust cover, is fixed on the vibrator on screen box, and described vibrating motor is connected by belt with vibrator.
6. sucking type airflow screen according to claim 1, it is characterised in that: being provided with cutting plate in described screen box, described cutting plate is laid in the underface of charging aperture, and cutting plate is a flat board, and the upper face of cutting plate is fixed with multiple baffle plates that uniform intervals is laid.
7. sucking type airflow screen according to claim 1, it is characterised in that: the exit side of described screen box is provided with the guide case of translatable separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173207.3U CN205393004U (en) | 2016-03-07 | 2016-03-07 | Suction formula air current sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173207.3U CN205393004U (en) | 2016-03-07 | 2016-03-07 | Suction formula air current sieve |
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| CN205393004U true CN205393004U (en) | 2016-07-27 |
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| CN201620173207.3U Active CN205393004U (en) | 2016-03-07 | 2016-03-07 | Suction formula air current sieve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750202A (en) * | 2016-03-07 | 2016-07-13 | 上海岚致环保科技有限公司 | Suction type gas flow screen and screening method thereof |
| CN111217079A (en) * | 2019-12-02 | 2020-06-02 | 姚笑笑 | Mineral carrier convenient to unload powdered particles |
-
2016
- 2016-03-07 CN CN201620173207.3U patent/CN205393004U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750202A (en) * | 2016-03-07 | 2016-07-13 | 上海岚致环保科技有限公司 | Suction type gas flow screen and screening method thereof |
| CN111217079A (en) * | 2019-12-02 | 2020-06-02 | 姚笑笑 | Mineral carrier convenient to unload powdered particles |
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| GR01 | Patent grant |