CN203155544U

CN203155544U - Drawer type sieve

Info

Publication number: CN203155544U
Application number: CN 201320190791
Authority: CN
Inventors: 李智; 邓如瑞; 常存福; 王金金
Original assignee: ZHENGZHOU ZHAOFENG COMPLETE SETS OF EQUIPMENT CO Ltd
Current assignee: ZHENGZHOU ZHAOFENG COMPLETE SETS OF EQUIPMENT CO Ltd
Priority date: 2013-04-16
Filing date: 2013-04-16
Publication date: 2013-08-28
Anticipated expiration: 2023-04-16

Abstract

The utility model discloses a drawer type sieve which comprises sieve lattices and sieve frames. The sieve frames are disposed in a sieve body in a drawing mode, and the sieve lattices are disposed in the sieve frames in a drawing mode. According to the drawer type sieve, the position among the sieve body, the sieve lattices and the sieve frames is designed into a movable structure, so that maintenance and cleaning are greatly facilitated, and the labor intensity is effectively reduced. Large-angle inclination can be achieved due to the sieve lattices, so that the material flow speed is accelerated, the risk of equipment material blockage is minimized, and the production efficiency is effectively improved. A mechanical structure and rubber material combined sealing mode is adopted between the sieve lattices and upper frames, so that material jumping and leakage can be effectively prevented. Supporting nets are in horizontal structures, so that the free movement of cleaning apparatuses is facilitated, and a good cleaning effect can be achieved. Bottom plates of the sieve frames are in step structures, so that the whole height is reduced, the equipment gravity center is lowered, and the operation is stable. The drawer type sieve is widely applicable to grading and impurity removal of powder and granules in industries such as flour milling, food, pharmacy, fodder, chemical engineering, starch and mines.

Description

A kind of drawer type sieve

Technical field

The utility model belongs to powder screening plant technical field, particularly a kind of drawer type sieve.Be widely used in the powder of industries such as flour processing, food, pharmacy, feed, chemical industry, starch, mine, classification and the removal of impurities of particulate material.

Background technology

Powder check and removal of impurities are the master operations of the screen classifying equipoment of a lot of industry processing technologys, can realize graininess, granular material are carried out classification and removal of impurities by granularity.In pulverizing process, if can not carry out effective classification by designing requirement, just may make follow-up each flow system flow distribution uneven, cause the increase of follow-up equipment load, output to reduce, move consumption and increase.And in screening, in order to guarantee the normal operation of powder test sieve, just must prevent from sieving bad use phenomenons such as lattice generation putty.

Sieve lattice and the sieve nest of known powder test sieve (as the efficient plansifter of FSFJ type, the closed plansifter of FSFG type, TQLM rotary flat sieve etc.) match, needing to put in order storehouse some layers of sieve lattice stacks together, the employing level compresses and is fixed on the sieve nest or in the sieve nest with the vertical mode that combines that compresses, this has just increased the whole height of equipment, increasing of center of gravity, make equipment operation not steady, and when certain layer sieve lattice generation putty or fault, the sieve lattice on its top disassembling in layer just can need be cleared up and safeguard.Install after operation finishes, lengthy and tedious operation installation process not only greatly reduces operating efficiency, and has increased labour intensity from level to level again.

Summary of the invention

The purpose of this utility model proposes a kind of drawer type sieve at existing weak point in the above-mentioned prior art just, the utility model has solved existing powder test sieve sieve lattice whole height height, the easy drawback of putty, not quick detachable, cleaning, reach the flowing velocity of accelerating material, avoid putty, the purpose of reduce labour intensity, enhancing productivity.

The purpose of this utility model can realize by following technique measures:

Drawer type sieve of the present utility model comprises sieve lattice and screen frame, but described screen frame pull is put into sieve nest, but the sieve lattice also pull put into screen frame.

Screen frame described in the utility model is two-layer, is put in up and down in the sieve nest, is provided with the two layer screen lattice in every layer of screen frame, be obliquely installed with two layer screen lattice that last screen frame cooperates and direction identical; The two layer screen lattice incline direction that cooperates with following screen frame is opposite.

Sieve lattice described in the utility model are formed frame structure by slipway beam and crossbeam, in framework by many horizontal bars being set and vertical muscle constitutes a plurality of grids, in each grid, be provided with five to six cleaning balls, upper surface at the sieve lattice fixedly has screen cloth, the holder net is fixedly arranged at the bottom at the sieve lattice, and the left and right slipway beam of sieve lattice is provided with concave slideway.

The bottom of sieve described in the utility model is multistage grid structure, fixedly there is the left and right sides shrouding shrouding, the left and right sides before and after the front and back of screen frame side fixedly has, two heel posts at screen frame are provided with slideway, upper end at screen frame is provided with diagonal brace, the bottom that cooperates with the sieve lattice in screen frame is provided with protecting wire net, and the bottom of every layer of sieve lattice is provided with the base plate of ridge shape in screen frame.

The set-up mode of sieve lattice described in the utility model on screen frame can be two kinds, and a kind of is that the inclination mode arranges, and its angle of inclination is spent less than 20 greater than 0 degree; Another kind is horizontal mode.

The beneficial effects of the utility model are as follows:

The utility model greatly facilitates and safeguards and cleaning owing to will be designed to bascule between sieve nest, sieve lattice and the screen frame, effectively reduces labour intensity.Because the sieve lattice can be realized the inclination of wide-angle, have so just accelerated the flowing velocity of material, the risk of equipment putty has been dropped to minimum, improved production efficiency effectively.The mode that sealing between sieve lattice and the upper ledge adopts frame for movement and rubber material to combine can be avoided scurrying material effectively and be leaked the material phenomenon.The holder net is horizontal structure, is convenient to the freely-movable of cleaning plant, can reach cleaning effect preferably.The base plate of screen frame adopts hierarchic structure, has reduced whole height, and the center of gravity of equipment is moved down, and it is more steady to turn round.

Description of drawings

Fig. 1 is that the utility model sieve lattice cooperate schematic diagram with screen frame.

Fig. 2 is the utility model sieve lattice structure schematic diagram.

Fig. 3 is the utility model inclination form sieve lattice cutaway views.

Fig. 4 is the utility model horizontal versions sieve lattice cutaway views.

Fig. 5 is screen frame schematic diagram on the utility model.

Fig. 6 is screen frame vertical view on the utility model.

Fig. 7 is screen frame cutaway view on the utility model.

Fig. 8 is screen frame schematic diagram under the utility model.

Fig. 9 is screen frame vertical view under the utility model.

Among the figure: 1, sieve lattice, 2, screen frame, 3, slipway beam, 4, crossbeam, 5, horizontal bar, 6, vertical muscle, 7, the cleaning ball, 8, the holder net, 9, screen cloth, 10, column, 11, diagonal brace, 12, the front and back shrouding, 13, left and right sides shrouding, 14, base plate, 15, slideway, 16, protecting wire net.

The specific embodiment

By reference to the accompanying drawings, it is as follows to provide embodiment of the present utility model:

As shown in Figure 1: drawer type sieve nest described in the utility model is that two-layer screen frame 2 is set in sieve nest, adopts up-down structure to be put in the sieve nest.Every layer of screen frame can be extracted out separately or put in sieve nest.Be provided with two layer screen lattice 1 up and down in every layer of screen frame 2, each sieve lattice also can be extracted out or put in screen frame 2.The structure of upper and lower screen frame 2 such as Fig. 5～shown in Figure 9, every layer of screen frame 2 can realize and the cooperating of two layer screen lattice 1.Two layer screen lattice 1 incline direction that cooperates with last screen frame is identical, material can be divided into two-way, and one the tunnel enters ground floor sieve lattice, and another road enters second layer sieve lattice.The two layer screen lattice incline direction that cooperates with following screen frame is opposite, can make the oversize merging of first and second layer enter the 3rd layer of sieve lattice together, enters the 4th layer of sieve lattice more jointly.Every layer of screen frame and sieve nest are movable connection structure, and what present embodiment adopted is the drawing and pulling type syndeton, and like this, each screen frame just can be extracted out separately or put in sieve nest.All be welded with left and right sides slideway 15 on the left and right directions of every layer of screen frame, match with the left and right sides slipway beam 3 of sieve on the lattice, make the sieve lattice freely pull out or put into screen frame.The sealing of end is that left and right sides slipway beam by the sieve lattice embeds in the left and right sides slideway of screen frame and realizes that the sealing around it is by shrouding 12 before and after the welding and 13 realizations of left and right sides shrouding about sieve lattice and screen frame.Screen frame adopts steel construction, and the sieve lattice adopt wooden structures.The sieve door is positioned on the sieve nest, can freely open or close.Form the passage of oversize and screenings between the sidewall of screen frame 5, sieve door 2 and sieve nest 3, realize the screen operation.Reveal at sieve nest 3 is provided with horizontal hold down gag, and this device uses band iron as press strip, cooperates the compact heap that welds on the sieve nest to hold out against together with two sieve lattice of bolt with a screen frame and Qi Nei, and is for convenience detach and install.

As Fig. 2～shown in Figure 4: sieve lattice 1 are formed frame structure by slipway beam 3 and crossbeam 4, in framework, by being set, many horizontal bars 5 and vertical muscle 6 constitute a plurality of grids, in each grid, be provided with five to six cleaning balls 7, when equipment operation, cleaning ball 7 can freely be beated in grid, reaches the effect that the cleaning compass screen surface avoids sticking with paste sieve.Upper surface at sieve lattice 1 fixedly has screen cloth 9, and the specification of screen cloth can be selected according to operation and technology.In the bottom of sieve lattice 1 holder net 8 is arranged fixedly, the book size of holder net 8 is consistent with screen cloth 9, works to support cleaning ball 7, reinforces sieve lattice 1.The left and right slipway beam 3 of sieve lattice 1 is provided with concave slideway, matches with convex slideway 15 on the screen frame 2, realizes extracting out or putting into.

As Fig. 5～shown in Figure 9: screen frame 2 adopts steel to be welded into frame structure, comprises column 10, shrouding 12, diagonal brace 11, base plate 14 and protecting wire net 16.The bottom of screen frame 2 is multistage grid structure, and the number of plies of ladder is relevant with the number of vertical muscle 6 in the sieve lattice 1, for vertical muscle number adds one.The purpose of stepped design is in order to reduce the whole height of screen frame 2.Fixedly there is left and right sides shrouding 13 shrouding 12, the left and right sides before and after the front and back of screen frame 2 side fixedly has.On two heel posts 10 of screen frame 2, all be welded with sheet metal and be bent into the slideway 15 that the cross section is convex.Side is provided with diagonal brace 11 in the front and back of screen frame 2.The bottom that cooperates with every layer of sieve lattice 1 in screen frame 2 is provided with protecting wire net 16, the upper and lower side of protecting wire net 16 is welded on respectively on screen frame diagonal brace 11 and the screen frame base plate 14, can prevent that expeller (for rhombus, move freely on the base plate 14 with operating at of equipment, but water conservancy diversion screenings) from flowing out with screenings.The bottom of every layer of sieve lattice 1 is provided with the base plate 14 of ridge shape in screen frame 2, be used for accepting screenings and expeller, and can make screenings flow out the passage that enters front and back side screenings along the direction of its inclination, before and after and about shrouding 12,13 oversize is sealed, and its direction that tilts at sieve lattice 1 upper edge sieve lattice is flowed and flow out from the oversize discharging opening, screenings is then by protecting wire net 16, falls from the passage of both sides, front and back and enters the screenings discharging opening.Certainly, in the end on the screen frame 2 that one deck sieve lattice 1 cooperate accessories such as protecting wire net 16, expeller and base plate 14 can be set, because the bottom of last one deck sieve lattice 1 is the screenings discharging opening, the material that sieves can directly fall into the screenings discharging opening, flows out outside the sieve nest.

According to material particles size, proportion difference, the set-up mode of sieve lattice 1 on screen frame 2 can be two kinds, a kind of is inclination mode (as shown in Figure 3), be mainly used in the weaker material of free-running property, its angle of inclination can be greater than 0 degree less than 20 degree, purpose is to accelerate the flowing velocity of material, reduces the risk of equipment putty, enhances productivity.Holder net 8 is horizontal structure, so that cleaning ball 7 can freely be beated, reaches the purpose of cleaning screen cloth 9.Another kind is horizontal mode (as shown in Figure 4), namely sieves lattice and is horizontally disposed with, and is mainly used in free-running property material preferably, relies on this moment the plane rotation motion of equipment self and feed pressure to promote material and travels forward and carry out the screen operation.

During use, rely on feed pressure, angle of inclination and centrifugal force to advance material fast.Because material particles size is different with proportion, the screen cloth 9 that granule sees through in the sieve lattice becomes screenings, and bulky grain can not see through screen cloth then become oversize, thereby they are separated from the discharging opening discharge of the bottom of sieve nest respectively.By using the screen cloth in different apertures, material can be divided into oversize and the screenings of different size.

Claims

1. a drawer type sieve comprises sieve lattice (1) and screen frame (2), and it is characterized in that: described screen frame is put into sieve nest in the pull mode, and the sieve lattice are put into screen frame in the pull mode.

2. drawer type sieve according to claim 1 is characterized in that: described screen frame (2) is put in up and down in the sieve nest for two-layer, is provided with the two layer screen lattice in every layer of screen frame, be obliquely installed with two layer screen lattice (1) that last screen frame cooperates and direction identical; The two layer screen lattice incline direction that cooperates with following screen frame is opposite.

3. drawer type sieve according to claim 1, it is characterized in that: described sieve lattice (1) are formed frame structure by slipway beam (3) and crossbeam (4), in framework by many horizontal bars (5) being set and vertical muscle (6) constitutes a plurality of grids, in each grid, be provided with five to six cleaning balls (7), upper surface at the sieve lattice fixedly has screen cloth (9), holder net (8) is fixedly arranged at the bottom at the sieve lattice, and the left and right slipway beam of sieve lattice is provided with concave slideway.

4. drawer type sieve according to claim 1, it is characterized in that: the bottom of described screen frame (2) is multistage grid structure, fixedly there is left and right sides shrouding (13) shrouding (12), the left and right sides before and after the front and back of screen frame side fixedly has, two heel posts (10) at screen frame are provided with slideway (15), be provided with diagonal brace (11) in the upper end of screen frame, the bottom that cooperates with sieve lattice (1) in screen frame (2) is provided with protecting wire net (16), and the bottom of every layer of sieve lattice is provided with the base plate (14) of ridge shape in screen frame.

5. drawer type sieve according to claim 1, it is characterized in that: the set-up mode of described sieve lattice (1) on screen frame (2) can be two kinds, a kind of is that the inclination mode arranges, its angle of inclination greater than 0 degree less than 20 degree; Another kind is horizontal mode.