CN202909945U

CN202909945U - Vibrating screen

Info

Publication number: CN202909945U
Application number: CN 201220510525
Authority: CN
Inventors: 张善娴; 郭宁; 王冬
Original assignee: ZHANGJIAGANG NEW TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: JIANGSU NEW TECHNOLOGY DEVELOPMENT CO., LTD.
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-05-01
Anticipated expiration: 2022-09-29

Abstract

The utility model discloses a vibrating screen which enables powder to be uniformly distributed on a sieve and comprises an upper casing, a lower casing, the sieve arranged between the upper casing and the lower casing, a support arranged below the lower casing and a vibrating motor used for driving the upper casing and the lower casing to vibrate. A spring is arranged between the lower casing and the support, a material inlet is arranged on the upper casing, a material outlet is arranged on the lower casing, and a buffer homogenization net is arranged on the inner wall of the upper casing and located above the sieve. The vibrating screen has the advantages that after the buffer homogenization net is arranged above the sieve, direct impact of the powder on the sieve is reduced, accordingly the powder uniformly falls on the sieve, and working efficiency of the sieve is improved.

Description

Vibratory sieve

Technical field

The utility model relates to a kind of vibratory sieve for superfine powder.

Background technology

Reciprocating sieve optional equipment in the present known various superfine powder engineerings, all adopt reciprocating sieve, airflow screen and revolve riddler etc., but in actual superfine powder engineering is used, because superfine powder exists proportion little, poor fluidity and easily building bridge, caking, simultaneously, the material of charging aperture skewness on screen cloth, form and pile up, thereby be difficult to make material smooth and easy by screen cloth, probably damage vibratory sieve in case stop up screen cloth, pollute to production environment, directly jeopardize health, and affect screening effeciency, also may cause the generation of the accidents such as motor damage, affect normal manufacturing schedule, economic loss.

The utility model content

Technical problem to be solved in the utility model is: provide a kind of so that the vibratory sieve that powder is evenly distributed at screen cloth.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of vibratory sieve, comprise upper shell, lower house, be arranged on the vibrating motor that the screen cloth between upper shell and the lower house, the support that is arranged on the lower house below and driving upper shell, lower house vibrate, be provided with spring between lower house and the support, be provided with charging aperture on the upper shell, be provided with discharging opening on the lower house, described charging aperture and discharging opening in the vertical direction are positioned at a straight line, are provided with buffering homogenizing net on the upper enclosure inner wall and cushion the homogenizing net to be positioned at the screen cloth top.

Also be provided with the laminar flow plate that begins to be evolvent type from the upper shell center on the described upper shell, the laminar flow plate is between screen cloth and buffering homogenizing net, and laminar flow plate upper end links to each other with the inwall of upper shell;

Be provided with some nozzles on the described upper enclosure inner wall, screen cloth is aimed in the gas outlet of nozzle;

Be provided with bracing frame between the described upper and lower casing, arching upward in the middle of the screen cloth is spheric and is fitted on the bracing frame.

The beneficial effects of the utility model are: after buffering homogenizing net is set above the screen cloth, reduces powder and directly screen cloth is impacted, thereby powder is evenly fallen on the screen cloth, improve the operating efficiency of screen cloth.

Description of drawings

Fig. 1 is the stereogram of the utility model vibratory sieve;

Fig. 2 is the front view of the utility model vibratory sieve,

Fig. 3 is the graph of a relation of laminar flow plate and upper shell.

Among the figure: 1, upper shell, 2, lower house, 3, screen cloth, 4, support, 5, vibrating motor, 6, spring, 7, charging aperture, 8, discharging opening, 9, buffering homogenizing net, 10, the laminar flow plate, 11, nozzle, 12, bracing frame, 13, jet pipe.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As shown in Figure 1 and Figure 2, vibratory sieve described in the utility model, the vibrating motor 5 that comprise upper shell 1, lower house 2, be arranged on the screen cloth 3 between upper shell 1 and the lower house 2, the support 4 that is arranged on lower house 2 belows and driving upper shell 1, lower house 2 vibrates, vibrating motor 5 is two and lays respectively at upper shell 1 both sides.Be provided with spring 6 between lower house 2 and the support 4, be provided with charging aperture 7 on the upper surface of upper shell 1, be provided with discharging opening 8 on the lower surface of lower house 2, described charging aperture 7 and discharging opening 8 in the vertical directions are positioned at a straight line, are provided with buffering homogenizing net 9 on upper shell 1 inwall and cushion homogenizing net 9 to be positioned at screen cloth 3 tops.As shown in Figure 3, pile up in order to prevent that powder from forming at screen cloth 3, also be provided with the laminar flow plate 10 that begins to be evolvent type from upper shell 1 center on the upper shell 1, laminar flow plate 10 is between screen cloth 3 and buffering homogenizing net 9, laminar flow plate 10 upper ends link to each other with the inwall of upper shell 1, laminar flow plate 10 can stop the powder vibrations to be piled up and gradually exploitation is loose, thereby improves the utilization rate of screen cloth.Be provided with some nozzles 11 on upper shell 1 inwall, screen cloth 3 is aimed in the gas outlet of nozzle 11, the powder of poor fluidity forms the steady rest bridge construction in screen cloth 3 surfaces, be provided with and produce air-flow behind the nozzle 11 and puncture the bridge formation powder and be convenient to sub-sieve, when actual production, can go up soldering blow tube 13 in the lower edge of laminar flow plate 10 (limit that laminar flow plate 10 contacts with upper shell 1 inwall is the upper edge), nozzle 11 is arranged on the jet pipe 13.In order to increase circulation screening area, be provided with bracing frame 12 between described upper shell 1 and the lower house 2, arching upward in the middle of the screen cloth 3 is spheric and is fitted on the bracing frame 12.

The course of work of the present utility model is: the screening of superfine powder material, at first enter buffering homogenizing net 9 by charging aperture 7, evenly diffuse to work screen cloth 3 surfaces through buffering homogenizing net 9, fall into screen cloth 3 lip-deep powders under the effect of the exciting force that vibrating motor 5 produces, powder is upwards thrown on compass screen surface 3, moving linearly on the while horizontal direction, the follow-up powder that falls into can produce stack and pile up, affect screening effeciency, cut apart extension and guiding by the powder that the laminar flow plate is piled up stack, make powder again be distributed in screen cloth 3 surfaces, again improve the screen cloth utilization rate.Be aided with nozzle 11 and spray off and on compressed air, making large tracts of land bridge formation powder be punctured porous by moment helps gas body and suitable powder to pass through screen cloth 3 with formation, to prevent that piling up obstruction because of powder causes the equipment damage, therefore, this utility model equipment in powerful disposal ability, reduce the advantage such as energy consumption and fault rate, extension device service life and in various screening plants, occupy and can't replace status and practical value.

Claims

1. vibratory sieve, comprise upper shell, lower house, be arranged on the vibrating motor that the screen cloth between upper shell and the lower house, the support that is arranged on the lower house below and driving upper shell, lower house vibrate, be provided with spring between lower house and the support, be provided with charging aperture on the upper shell, be provided with discharging opening on the lower house, it is characterized in that: be provided with buffering homogenizing net on the described upper enclosure inner wall and buffering homogenizing net is positioned at the screen cloth top.

2. vibratory sieve according to claim 1 is characterized in that: be provided with bracing frame between the described upper and lower casing, arching upward in the middle of the screen cloth is spheric and is fitted on the bracing frame.