CN201183044Y

CN201183044Y - Block-resistant drum sieve

Info

Publication number: CN201183044Y
Application number: CNU2007201784810U
Authority: CN
Inventors: 冯金晔; 林健
Original assignee: WEIFANG HUIYING HEAVY MACHINERY CO Ltd
Current assignee: WEIFANG HUIYING HEAVY MACHINERY CO Ltd
Priority date: 2007-10-24
Filing date: 2007-10-24
Publication date: 2009-01-21
Anticipated expiration: 2017-10-24

Abstract

The utility model discloses an anti-blockage drum screen which includes a gradient machine frame and a drive mechanism installed on the machine frame. Bearing seats are installed on both ends of the machine frame; a screen body is installed on the bearing seats by a middle structure thereof; a protection cover is arranged along the length direction of the screen body and is installed on the machine frame; the middle structure of the screen body is connected with the drive mechanism through shaft couplings; a comb-shape teeth-type cleaner is installed on the machine frame through an adjusting mechanism; the comb-shape teeth-type cleaner rotates along with the screen body through a transmission mechanism, clears the screen holes and engulfs the sundries into sundries collecting room. The utility model can effectively avoid the disadvantage of screen holes blockage caused by the material being screened containing too much of water or by the material or sundries blocking at the screen holes, therefore ensures the unblocking of the screen holes, lightens the working intensity of the worker and reduces the production cost.

Description

Anti-blocking rotary screen

Technical field

The utility model relates to a kind of granule materials screening plant, is the anti-blocking rotary screen of a kind of self-cleaning specifically.

Background technology

Be widely used in the screening plant of the granule materials of industries such as power plant, colliery, cement plant, building materials at present, general vibratory sieve or the rotary screen of adopting, screen cloth is to design sieve aperture by the granularity requirements that is sized material, and this screening plant is had relatively high expectations to the moisture content that is sized material, generally be not more than 10%, humidity is excessive, can increase the viscosity that is sized material, stop up easily sieve aperture, thereby cause that screening efficiency is low, energy consumption is high, have a strong impact on operate as normal.Particularly in rainy season, the humidity of the outdoor material of depositing is bigger, and easier obstruction sieve aperture reduces screening efficiency, and is unimpeded in order to make sieve aperture, have to manually clear up blocked sieve aperture, increased labor strength, improved production cost.

Summary of the invention

Goal of the invention of the present utility model provides a kind of anti-blocking rotary screen, this rotary screen can prevent effectively and eliminate be sized material because of water content excessive or bulk materials and braid etc. fill in the drawback of stopping up sieve aperture in the sieve aperture, improve screening efficiency.

For solving the problems of the technologies described above, a kind of anti-blocking rotary screen of the present utility model, the frame (1) that comprises inclination, be installed in frame (1) and go up drive unit (2), frame (1) two ends, the left and right sides are equipped with bearing block (10), sieve nest (6) is installed on the bearing block (10) by intermediate frame (11), be provided with guard shield (5) along sieve nest (6) length direction, guard shield (5) is installed on the frame (1), it is characterized in that: the intermediate frame (11) of described sieve nest (6) is connected by shaft coupling (3) with drive unit (2), inherent sieve nest (6) one sides of described guard shield (5) are installed the tooth-like sweeper of comb shape (7) with it abreast, the tooth-like sweeper of comb shape (7) is by transmission mechanism (9) transmission, and foreign material collecting chamber (13) is installed in the tooth-like sweeper of comb shape (7) bottom, one side of rotary screen material-falling hopper (12).

Further, the tooth-like sweeper of described comb shape (7) is made on the axle for wear-resisting be arranged in parallel within alternate with spacer (15) of tooth-like cleaning blade (14), and tooth-like cleaning blade (14) is corresponding with sieve aperture.

As to improvement of the present utility model, described sieve nest is that grating is being arranged in parallel within on the axial direction of sieve nest on the sieve nest intermediate frame, and the gap of adjacent grating constitutes sieve aperture.

As to improvement of the present utility model, the tooth-like sweeper of described comb shape is that tooth-like cleaning blade and spacer spaced and parallel are arranged on the axle, and makes tooth-like cleaning blade corresponding with the sieve aperture on the sieve nest.

As to improvement of the present utility model, described transmission mechanism is that the rotation of sieve nest is delivered on the tooth-like sweeper of comb shape by gear drive or chain transmission or its combination transmission.

As to improvement of the present utility model, the space of the described foreign material collecting chamber foreign material that to be the tooth-like sweeper of collection comb shape that isolates in material-falling hopper one side clean out from sieve aperture.

After adopting said structure, be sized material in the process of rotary screen of flowing through, qualified material is gone into thin discharging opening by the sieve aperture screening is laggard; The material of the larger particles that can not sieve flows out from thick discharging opening; If excessive or large granular materials is stuck in when stopping up sieve aperture in the sieve aperture because of water content to be sized material, then in the rotary screen rotation process, can in time clear up blocked sieve aperture with the tooth-like sweeper of the corresponding comb shape of sieve aperture, simultaneously big gun line and the braid of clamp-oning sieve aperture can in time be torn it and be involved in the foreign material collecting chamber, guarantee the unimpeded of sieve aperture, avoided manually-operated, alleviated working strength of workers, reduced production costs, increased work efficiency.

Description of drawings:

Fig. 1 is the structural representation of the utility model side-looking;

Fig. 2 removes the structural representation that guard shield and feed hopper are overlooked for the utility model;

Fig. 3 is the structural representation of the utility model Fig. 1 midship section.

The specific embodiment

Now in conjunction with the accompanying drawings and embodiments spirit of the present utility model is done to describe in further detail:

A kind of anti-blocking rotary screen shown in the drawings, the frame 1 that comprises inclination, drive unit 2 is installed on frame 1, the two ends, the left and right sides of support 1 are equipped with bearing block 10, sieve nest 6 is installed on the bearing block 10 by framework 11 in the middle of it, drive unit 2 is connected with intermediate frame 11 on the sieve nest 6 by shaft coupling 3, be provided with guard shield 5 along sieve nest 6 length directions, guard shield 5 is installed on the frame 1, and sieve nest 6 wrapped in the guard shield 5, the high-end feed hopper 4 that is provided with in inclination frame 1, low side and sieve nest 6 bottoms in inclination frame 1 are provided with material-falling hopper 12, near material-falling hopper 12 1 sides foreign material collecting chamber 13 is installed, feed hopper 4 is higher than material-falling hopper 12, the axis and the horizontal plane that are sieve nest 6 have certain included angle, in guard shield 5, sieve nest 6 one sides and with the sieve nest 6 parallel tooth-like sweepers 7 of comb shape that are equipped with, the tooth-like cleaning blade 14 of the tooth-like sweeper 7 of comb shape is corresponding with the sieve aperture on the sieve nest 6, the tooth-like sweeper 7 of comb shape is regulated the gap of the tooth-like sweeper 7 of comb shape and sieve nest 6 by being installed in guiding mechanism 8 on the frame 1, intermediate frame 11 is by transmission mechanism 9 and tooth-like sweeper 7 transmissions of comb shape, in screening process, the tooth-like sweeper 7 of the comb shape of parallel installation rotates with the rotation of sieve nest 6, thereby cleaning sieve aperture and collection foreign material reach anti-blocking purpose.

The tooth-like sweeper of described comb shape (7) is made on the axle for wear-resisting be arranged in parallel within alternate with spacer (15) of tooth-like cleaning blade (14), and tooth-like cleaning blade (14) is corresponding with sieve aperture.

This anti-blocking rotary screen is widely used in industries such as power plant, colliery, cement plant, building materials, carries out the screening of granule materials.

Present embodiment only is a kind of exemplary illustration, and the simple change that those skilled in the art makes on the basis of the present utility model thought according to general knowledge also should fall into protection domain of the present utility model.

Claims

1, a kind of anti-blocking rotary screen, the frame (1) that comprises inclination, be installed in the drive unit (2) on the frame (1), frame (1) two ends, the left and right sides are equipped with bearing block (10), sieve nest (6) is installed on the bearing block (10) by intermediate frame (11), be provided with guard shield (5) along sieve nest (6) length direction, guard shield (5) is installed on the frame (1), it is characterized in that: the intermediate frame (11) of described sieve nest (6) is connected by shaft coupling (3) with drive unit (2), inherent sieve nest (6) one sides of described guard shield (5) are installed the tooth-like sweeper of comb shape (7) with it abreast, the tooth-like sweeper of comb shape (7) is by transmission mechanism (9) transmission, and foreign material collecting chamber (13) is installed in the tooth-like sweeper of comb shape (7) bottom, one side of rotary screen material-falling hopper (12).

2, anti-blocking rotary screen according to claim 1, the tooth-like sweeper of described comb shape (7) is made on the axle for wear-resisting be arranged in parallel within alternate with spacer (15) of tooth-like cleaning blade (14), and tooth-like cleaning blade (14) is corresponding with sieve aperture.

3, anti-blocking rotary screen according to claim 1 and 2, described foreign material collecting chamber (13) are foreign material parking spaces that isolates in material-falling hopper (12) one sides.

4, anti-blocking rotary screen according to claim 1 and 2, described spiral clearing apparatus (7) is installed on the frame (1) by guiding mechanism (8), and guiding mechanism (8) is used to adjust the distance of spiral clearing apparatus (7) with respect to sieve nest (6).

5, anti-blocking rotary screen according to claim 1 and 2, described transmission mechanism (9) are positioned between sieve nest (6) and the described spiral clearing apparatus (7), are driven the rotation of spiral clearing apparatus (7) by the rotation of sieve nest (6).

6, anti-blocking rotary screen according to claim 4, described transmission mechanism (9) are positioned between sieve nest (6) and the described spiral clearing apparatus (7), are driven the rotation of spiral clearing apparatus (7) by the rotation of sieve nest (6).

7, anti-blocking rotary screen according to claim 5, described transmission mechanism (9) is by gear drive or chain transmission or its combination realization transmission.

8, anti-blocking rotary screen according to claim 6, described transmission mechanism (9) is by gear drive or chain transmission or its combination realization transmission.