CN201091864Y

CN201091864Y - Grading sieve with plane reciprocally-moving screen surface

Info

Publication number: CN201091864Y
Application number: CNU2007201703758U
Authority: CN
Inventors: 腊贵平; 杨和平
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-27
Filing date: 2007-08-27
Publication date: 2008-07-30
Anticipated expiration: 2017-08-27

Abstract

The utility model discloses a classifying screen, in particular to a classifying screen which is used for ore material slurry and is provided with a screen face which can reciprocate horizontally. The utility model comprises a rectangle screen frame, a screen mesh (6) which is fixedly connected with four edges of the bottom of the rectangle screen frame, a vibration device (11) fixed on the rectangle screen frame and a vertical column (13) supporting four angles of the rectangle screen frame. The utility model is characterized in that the rectangle screen frame is split structure and is horizontally divided into an upper screen frame (1) and a lower screen frame (3) from the middle part of the rectangle screen frame; a connecting part (2) is arranged between the corresponding positions in the length direction of the upper screen frame (1) and the lower screen frame (3); at least two beams (9) are arranged on the top of the upper screen frame (1); a plurality of bearing bars (12) are horizontally and vertically fixed at the bottom of the lower screen frame (3); at least one vibration device (11) is arranged on one side of the lower screen fame (3). The classifying screen can effectively enhance the classifying effect and screening efficiency of materials and can avoid jam of screen meshes, and the classifying screen has safety and maneuverability and is good for popularization and implementation.

Description

But a kind of classifying screen of compass screen surface planar reciprocating

Technical field

The utility model relates to a kind of sieve, but specifically is the classifying screen of the compass screen surface planar reciprocating used of a kind of ore slip.

Background technology

In the metallurgical mine field, used ore slip classifying screen mostly is vibratory sieve greatly at present, and the drive motors of installing on the screen frame has eccentric block, and eccentric block and screen frame are fixedly connected.During the drive motors running, drive the screen frame motion by eccentric block, screen cloth mainly moves up and down, thus screening ore slip.Because slip enters screen cloth by top, qualified thin mineral aggregate falls into the screen cloth below by screen cloth, in actual use, because the direction of motion of screen cloth is consistent with the direction of motion of ore slip, easily causes the obstruction of screen cloth, influences screening efficiency.

The utility model content

In order to overcome above-mentioned defective of the prior art, the purpose of this utility model is to provide a kind of change screen movement direction, make the direction of motion of screen cloth vertical, avoid or reduce the obstruction of screen cloth, but improve the classifying screen of the compass screen surface planar reciprocating of screening efficiency with the direction of motion of ore slip.

To achieve these goals, the utility model adopts following technical scheme: but a kind of classifying screen of compass screen surface planar reciprocating, it comprises rectangular sieve frame, screen cloth, this screen cloth is fixedlyed connected with edge, rectangular sieve frame bottom; Be fixed in the vibrating device on this rectangular sieve frame; 4 root posts that support this rectangular sieve frame and fix with ground; Its characteristics are: described rectangular sieve frame is laterally disconnected by this rectangular sieve frame middle part for dividing body structure, is divided into screen frame and following screen frame; On this screen frame and following screen frame length to relative position between be provided with connector; Described top sieve arch length vertical fixing between both sides has crossbeam, and this crossbeam is provided with 2 at least; Described screen frame down bottom is fixed with the load-bearing bar, the load-bearing bar is provided with many, its vertical each other formation is netted, wherein, be fixed in down the wide on frame of screen frame with following screen frame length to the load-bearing bar two ends that be arranged in parallel, be fixed in down the length of screen frame on frame to the load-bearing bar two ends that be arranged in parallel with following screen frame is wide; Described vibrating device is provided with 1 at least, is positioned at the described outside of screen frame one side down.

Above-mentioned connector can be selected the flexible glue plate for use, also can select spring for use; During with flexible offset plate, this flexibility offset plate is provided with 2, its length and last screen frame and following screen frame length to length identical, fixedlying connected with the relative position of following screen frame ipsilateral with last screen frame respectively in one side at the two ends up and down of this flexibility offset plate, and leaves the gap between the last screen frame that joins of this flexibility offset plate and the following screen frame.Best connected mode: be to be fixedlyed connected with the relative position of following screen frame medial surface with last screen frame medial surface respectively in the outside of this flexibility offset plate.When using spring, spring is made as many, interval and uniform being fixed between screen frame and the following screen frame, and fixedly connected with the relative position of following screen frame with the described screen frame of going up respectively in the two ends up and down of every spring.

The optional electromagnetic vibration machine of using of above-mentioned vibrating device also can be selected cam crank mechanism for use; The 1-6 platform can be set, and the best is provided with 2, all is installed on down the position, front and back of screen frame one side more than 2.

Before laying screen cloth, install angle steel in following screen frame length earlier to both sides, widely install the upper side angle steel to one side, lay screen cloth then, the length of screen cloth lays respectively on the angle steel to both sides, widely be positioned on one side on the angle steel of side to both sides, the screen cloth upper surface on the angle steel position is covered with press strip, is fixed together with bolt and nut then; In like manner, the screen cloth upper surface on angle steel position, side is covered with the side press strip.

Length at the top sieve arch has back-up block to the four jiaos of arranged outside in both sides, and 4 back-up blocks are affixed with above-mentioned column top respectively.

The utility model adopts as above technical scheme, its beneficial effect is as follows: 1) rectangular sieve frame is set to the branch body structure, be fixed with connector between following screen frame and the last screen frame, when driving the electromagnetic vibration machine operation, or driving cam crank mechanism when running, drive screen frame motion down, at this moment, last screen frame is motionless, following screen frame is subjected to the restriction of screen frame by connector, make it do planar reciprocating, slip drops on the motion state that still is in the whereabouts on the screen cloth, at this moment, the direction of motion of screen cloth is vertical with the direction of motion of ore slip, screen cloth makes material produce acceleration of gravity with respect to material as cutting movement, thereby makes material carry out layering by grade, reaches the purpose of material high-effective classifying.2), adopt cycle frequency conversion campaign, make ore particulate generation acceleration of gravity, help improving the percent opening of screen cloth, avoid or reduce the obstruction of screen cloth; Simultaneously, can also make ore particles by the grade layering, the granule ore moves to below the bed of material, forms the effect of macropore screening granule level, thereby improves its screening efficiency.3) go up screen frame and be welded with back-up block along long respectively to 4 angles on both sides, back-up block is fixedlyed connected with the column that is fixed in ground, and the sieve nest of classifying screen is supported, and the height of adjusting column can be regulated the height of classifying screen; Last screen frame and following screen frame all adopt the steel plate manufacturing, both connect by flexible offset plate, following screen frame three limits are welded with angle steel respectively, the horizontal sides of angle steel is formed " door " type, add the load-bearing bar that is provided with in length and breadth in the middle of the door type again, screen cloth is tiled on the angle steel of a type, adds press strip at the screen cloth upper surface, final mode by bolt or welding is fixedly connected with angle steel, screen cloth, press strip, strengthened being connected between screen cloth and the screen frame; This structural variation, simple, quantities is little, has solved in the prior art, because the up-down vibration of screen cloth material easily takes place stops up sieve aperture, the problem of shutting down maintenance is produced in damage equipment and delay, has improved production efficiency.4) electromagnetic vibration machine or cam crank mechanism are installed in down screen frame one side, drive electric and magnetic oscillation machine vibration or cam crank mechanical operation, screen frame is done planar reciprocating under driving, screen cloth is along with following screen frame is done planar reciprocating synchronously, both strengthen security, also strengthened the service life of this classifying equipoment.

Description of drawings

The overall structure schematic diagram that Fig. 1 overlooks for the utility model classifying screen

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view

Fig. 3 is that the B-B of Fig. 1 is to structural representation

The specific embodiment

The utility model laterally disconnects whole rectangular sieve frame from the middle part, is divided into upper and lower screen frame, last screen frame by connector be connected with following screen frame, connector can be selected flexible glue plate or spring for use, vibrating device is installed in down screen frame one side, when vibrating device is worked, drives screen frame motion down; At this moment, last screen frame is motionless, and flexible offset plate involves down screen frame and makes planar reciprocating, and material from top to bottom falls on the screen cloth, screen cloth relatively and material do cutting movement, the difference of the proportion of material, weight etc. make material produce acceleration, owing to can cause the speed of material also different, thereby quicken the layering that material is pressed proportion, grade, make material quicken to pass screen cloth, not only can improve screening efficiency, also can improve the grade of material.Simultaneously, screen cloth is done the high-speed plane motion, makes relative cutting movement with material, forms the effect of macropore screening granule level, has effectively improved net hole rate of screen cloth.

As Fig. 1, Fig. 2, shown in Figure 3, the utility model includes a rectangular sieve frame, the screen cloth 6 that the edge is fixed bottom rectangular sieve frame, the vibrating device 11 of driving rectangular sieve frame motion, wherein, rectangular sieve frame is for dividing body structure, laterally disconnect by the rectangular sieve frame middle part, be divided into screen frame 1 and following screen frame 3; Between last screen frame 1 and the following screen frame 3 connector 2 is installed.

Connector 2 can be selected the flexible glue plate for use, flexible offset plate is provided with 2, its length is identical to the length of two frames with rectangular sieve frame length, width is 1/3 of a length, every flexible offset plate length to both sides up and down lateral surface respectively with last screen frame 1 long to following inboard and following screen frame 3 length to the relative position of inboard, top affixed, and leave the gap between the bottom of the last screen frame 1 that flexible offset plate joins and the top of following screen frame 3, being convenient to down, screen frame 3 moves under the driving of vibrating device; Also can select spring for use, spring can be selected many for use, is provided with at interval and evenly, and the two ends up and down of every spring are individually fixed in screen frame 1 long bottom and following screen frame 3 long tops to the limit to the limit.

Flexible offset plate is optional, and its thickness is not less than the thickness of screen frame 1 and following screen frame 3 with elastomeric materials such as natural rubber, butadiene-styrene rubber or butadiene rubbers, and last screen frame 1 is identical with the thickness of following screen frame 3.

For the periphery that guarantees screen cloth 6 has the good effect that is connected with following screen frame 3 bases, can not make between screen cloth and the screen frame and throw off because of the weight influence of material; Before screen cloth is installed, on three limits of following screen frame 3 bottoms, angle steel is set respectively earlier, length is installed angle steel 4 respectively to both sides, one side wide to side angle steel 7 is installed; And then with screen cloth 6 tiling on it, press corresponding to angle steel 4 places at the upper surface of screen cloth 6 and to establish press strip 5, press corresponding to side angle steel 7 places and establish press strip 8; Fixedly connected by angle steel 4, press strip 5, side angle steel 7, press strip 8 screen cloth 6 with screw bolt and nut in the back with the edge of following screen frame 3; Also can adopt welding manner or other connected mode that screen cloth 6 is fixedlyed connected with the edge of following screen frame 3 by angle steel 4, press strip 5, side angle steel 7, press strip 8.

Be fixed with the load-bearing bar in following screen frame 3 bottoms; The load-bearing bar is provided with many, and it vertically constitutes bearing net each other, and the rectangular two ends of its bearing net and its wide of screen frame down weld to frame, and billet two ends and its length of screen frame down weld to frame;

Vibrating device 11 is provided with 1 at least, be installed on down screen frame 3 long to side outside; The best is provided with 2, and 2 are installed on down screen frame 3 long positions, front and back to a side; Can also be provided with many as required, can be provided with 6 at most; The vibrating device 11 optional electromagnetic vibration machines of using also can be selected cam crank mechanism for use.

Last screen frame 1 top length to both sides between vertically be provided with crossbeam 9, crossbeam 9 is established 2 at least, at interval and the length that is distributed in screen frame 1 between the frame on both sides, crossbeam 9 and last screen frame 1 are long to being connected of frame adopting welding, being spirally connected or mode such as riveted joint, the best is to weld.

Back-up block 10 is provided with 4 at least, be welded in the four jiao outsides of screen frame 1 top length respectively to both sides, affixed column perpendicular to the ground 13 tops are fixedly connected respectively for this back-up block 10, column 13 supports by the sieve nest of back-up block 10 with classifying screen of the present invention, regulate the height of column 13, can regulate the height of classifying screen.

Operation principle of the present utility model is as follows

Drive electromagnetic vibration machine or cam crank mechanism and drive screen frame 3 down, last screen frame 1 is motionless, connector 2 between last screen frame 1 and the following screen frame 3 is involving screen frame 3 planar reciprocatings, screen cloth 6 is done planar reciprocating along with the motion of following screen frame 3, material falls into screen cloth 6 from top to bottom, the material that falls into screen cloth 6 obtains certain kinetic energy perpendicular to the former direction of motion, thereby make material carry out layering by grade, screen cloth is done cutting movement with respect to material, make material produce acceleration of gravity, reach the purpose of material high-effective classifying.

Adopt converter technique to make electromagnetic vibration machine or the property performance period variable motion of cam crank mechanism, can effectively improve screen cloth percent opening, guarantee its screening efficiency and prevent the obstruction of sieve aperture.

Claims

But 1. the classifying screen of a compass screen surface planar reciprocating, it comprises rectangular sieve frame, screen cloth (6), this screen cloth (6) is fixedlyed connected with edge, rectangular sieve frame bottom; Be fixed in the vibrating device (11) on this rectangular sieve frame; And the column (13) that supports these 4 angles of rectangular sieve frame; It is characterized in that: described rectangular sieve frame is laterally disconnected by this rectangular sieve frame middle part for dividing body structure, is divided into screen frame (1) and following screen frame (3); Screen frame on this (1) and following screen frame (3) grow to relative position be provided with connector (2); Described screen frame (1) the top length vertical fixing between both sides that goes up has crossbeam (9); Described screen frame (3) down bottom is fixed with load-bearing bar (12); Described vibrating device (11) is provided with 1 at least, is positioned at the described outside of screen frame (3) one sides down.
But 2. the classifying screen of compass screen surface planar reciprocating according to claim 1, it is characterized in that: described crossbeam (9) is established 2 at least; Described load-bearing bar (12) is provided with many, and the intersection vertical fixing to frame and wide on frame, forms latticed in long.
3. but as the classifying screen of compass screen surface planar reciprocating as described in the claim 2, it is characterized in that: described connector (2) is flexible offset plate, and this flexibility offset plate is provided with 2, and its length is identical to length with the described length that goes up screen frame (1) and following screen frame (3); Fixedly connected with the relative position of following screen frame (3) ipsilateral with the described screen frame (1) of going up respectively in one side at the two ends up and down of this flexibility offset plate, and described the going up between screen frame (1) and the following screen frame (3) that this flexibility offset plate joins left the gap.
4. but as the classifying screen of compass screen surface planar reciprocating as described in the claim 3, it is characterized in that: the described flexible offset plate lateral surface at two ends is up and down fixedlyed connected with the relative position of following screen frame (3) medial surface with the described screen frame (1) of going up respectively.
5. but as the classifying screen of compass screen surface planar reciprocating as described in the claim 2, it is characterized in that: described connector (2) is a spring, this spring is provided with many, at interval and be distributed in described going up between screen frame (1) and the following screen frame (3), the two ends up and down of every spring respectively with this on screen frame (1) fixedly connected with the relative position of following screen frame (3).
6. but the classifying screen of compass screen surface planar reciprocating according to claim 1, it is characterized in that: described vibrating device (11) is an electromagnetic vibration machine, and this electromagnetic vibration machine is provided with the 1-6 platform.
7. but the classifying screen of horizontal reciprocating movement according to claim 1, it is characterized in that: described vibrating device (11) is cam crank mechanism, and this cam crank mechanism is provided with the 1-6 platform.
8. but as the classifying screen of compass screen surface planar reciprocating as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that: the length between described screen cloth (6) and described down screen frame (3) base is provided with angle steel (4) to the joint, and wide between this screen cloth (6) and following screen frame (3) base is provided with side angle steel (7) to the joint.
9. but as the classifying screen of compass screen surface planar reciprocating as described in the claim 8, it is characterized in that: screen cloth (6) upper surface that is positioned on described angle steel (4) position is equipped with press strip (5); Screen cloth (6) upper surface that is positioned on side angle steel (7) position is equipped with side press strip 8.
10. but as the classifying screen of compass screen surface planar reciprocating as described in the claim 9, it is characterized in that: the outside that the described length that goes up screen frame (1) top is four jiaos to both sides is respectively equipped with back-up block (10), and this back-up block (10) is affixed with the top of described column (13).