CN2426388Y

CN2426388Y - Blowby preventing wheat flour screen

Info

Publication number: CN2426388Y
Application number: CN 00206194
Authority: CN
Inventors: 祝天锁
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-19
Filing date: 2000-03-19
Publication date: 2001-04-11
Anticipated expiration: 2010-03-19

Abstract

The utility model discloses a blowby preventing wheat flour screen, which comprises an insert frame and a bottom plate frame. The insert frame and the bottom plate frame are both in wooden frame structure. The top and the bottom of the insert frame are separately provided with a flour screening net and a metal screen net. The bottom plate frame is composed of an inner frame and an outer frame which are fixed by a reinforcing plate. Half of the width outer side of the lower part of frames on the circumference of the insert frame is bulged downwards. The thickness of the inner frame of the base plate frame is the same as the width of the border of the insert frame. Half of the thickness inner side of the upper part is bulged upwards. The insert frame and the inner frame of the base plate frame are mutually inserted and fixed. An accumulating base plate in the inner frame of the base plate frame is a bevel. The utility model has the advantages of low manufacture cost, and high screening efficiency.

Description

Anti-blowby flour bolt lattice

The utility model belongs to the powder manufacturing apparatus member, relates generally to a kind of anti-blowby flour bolt lattice.

The flour bolt lattice are widely used in the screen process of wheat flour milling, comprise insert frame and collecting tray two parts.At present, both cooperations are fixing mainly to be the inboard that the insert frame frame is plugged on deckle board in the collecting tray, plug joint is positioned on the compass screen surface material movement circulation footpath down in vertical state, although add in the plug joint fit clearance and be equipped with sealing strip, but because timber itself is in process of production because of absorbing moisture or dehydration meeting generation flexural deformation in various degree, cause fit clearance increase between collecting tray and the insert frame, when body is in high-speed motion state, all-pervasive screen material is scurried under increase has fit clearance, with mixing of materials under the compass screen surface, influence screening amount.After particularly producing a period of time, this phenomenon can be more serious because of the body wearing and tearing.Because connected structure in insert frame adopts, half of its frame timber is connected structure, pegs graft with deckle board in the collecting tray, second half can only tie up surrounding in the insert frame, thereby cause available sifting surface to be tied up, dwindled effective area for sieving, influence sifting efficiency.The existing in addition screenings that is positioned at collecting tray is collected base plate and is the level of state; rely on and collect the expeller that is provided with on the base plate; promote material stream passed by means of body movement; usually increase because of the undersize material circulation or material to contain amount of moisture excessive; and water conservancy diversion does not freely produce obstruction, causes the trouble and the economic loss of shutdown maintenance to manufacturer.

The purpose of this utility model provides a kind of low cost of manufacture, sifting efficiency height, the high anti-blowby flour bolt lattice of sieve back flour quality.

The purpose of this utility model adopts following technical scheme to realize: described flour bolt lattice comprise insert frame and collecting tray, the main body of insert frame is a timber structure, be frame all around, top is provided with one deck compass screen surface net, the bottom is the mild steel woven wire cloth, abnormity cleaning piece is set between mild steel metallic sieve bottom insert frame and the compass screen surface net, the collecting tray main body is a timber structure, form by inside casing and housing, the housing height is greater than the inside casing height, fixation when the fixed block at four angles plays the combination of levels sieve lattice, play the structure booster action by stiffener between inside casing and the housing, half downward protrusion of the frame lower width outside around the insert frame, the thickness of collecting tray inside casing is identical with the width of insert frame frame, half of its upper inner thickness is protruding upward, and insert frame and collecting tray inside casing are pegged graft fixing mutually, and a collection base plate that is the inclined-plane is set in the collecting tray inside casing.

For the enhanced leaktightness effect, the outside joint in insert frame and the collecting tray between the cabinet is provided with sealing strip.

As from the foregoing, insert frame of the present utility model and collecting tray inside casing be combined into extrapolation access node structure, inboard joint is higher than outside joint, avoided because of timber in process of production because of suction or dehydration when deforming fit clearance become the oversize blowby that produces greatly and obscure in the generation of the phenomenon of screenings, and the side engagement place sets up sealing strip outside, prevent move last blowby when dirty of oversize material to greatest extent, can ensure the quality of flour effectively.Owing to be the vertical level stack after deckle board is pegged graft in insert frame frame and the collecting tray, dwindled invalid screen district again, it is about 20% to have increased effective area for sieving, raising sifting efficiency about 20%.In addition, it is the inclined-plane that screenings of the present utility model is collected base plate, undersize material body rotatablely move and the natural gravity double action under, proper motion is flowed out, can adapt to the needs of the screenings circulation of different throughputs and different in moisture content, save expeller, reduce the manufacturing process link, reduce cost, eliminated the blockage problem that material stream passed does not freely cause again.

Below in conjunction with embodiment the utility model is further described:

Fig. 1 removes the structural representation of insert frame upper surface compass screen surface net for the utility model.

Fig. 2 adds the A-A cutaway view of compass screen surface net for insert frame upper surface among relative Fig. 1.

Fig. 3 is a B shown in Figure 2 position partial enlarged drawing.

Shown in the figure: described flour bolt lattice comprise insert frame 2, collecting tray, and insert frame 2 is positioned at the top of collecting tray.The main body of insert frame 2 is a wood frame construction, adopt the mortise inserting mode, be timber structure frame 10 all around, insert frame top is one deck compass screen surface net 1, the bottom is a mild steel metal wire knitted mesh screen 12, be provided with abnormity cleaning piece 3 in the space between metallic sieve 12 and compass screen surface net 1, it rotates and freely-movable by body, by reach the purpose of the retentate on the cleaning compass screen surface 1 in the motion with the collision of compass screen surface net 1.The collecting tray main body is a timber structure, form by inside casing 4 and housing 14, housing 14 is higher than inside casing 4, four angles will be sieved the lattice secure bond up and down with fixed block 8, position between inside casing 4 and the housing 14 is fixing by stiffener 9, add in the bottom of housing 14 and inside casing 4 and to put sealing strip 7, the bonding crack of sealing levels sieve lattice.Space between housing 14 and the inside casing 4 is a material whereabouts passage, and the flour after top oversize and the bottom screen is different according to production technology, divides to walk different passages.One oblique collection base plate 5 is set in the middle and upper part of collecting tray inside casing 4, is provided with meal outlet with the low corresponding right side of a side, collection base plate inclined-plane inside casing 4.Half downward protrusion of the frame lower width outside around the insert frame 2, the thickness of collecting tray inside casing 4 tops is identical with the width of compass screen surface edges of boards frame, half of its thickness inboard, top is protruding upward, insert frame 2 is pegged graft fixing with collecting tray inside casing 4 mutually, both are provided with sealing strip 11 by outside joint, be connected with outer card plate 13 with insert frame frame 10, outer card plate 13 is stuck between the inside casing 4 and housing 14 of collecting tray.

The flour bolt lattice are the screen equipment object of flour machinery, when the good material of mill drops on the insert frame top compass screen surface net 1 downwards, because the flour bolt lattice move with body, material on the compass screen surface net 1 moves along direction 15 shown in Fig. 1 arrow, is not entered in the space between bottom sieve frame inside casing 4 and the housing 14 by the oversize of screen.Flour drops into from compass screen surface net 1 on the collection base plate 5 of insert frame bottom, under the effect of gravity and body movement, drops into the purpose that reaches screen in the collection container of bottom between inside casing 4 and the housing 14 along direction shown in the arrow among Fig. 2 16.

Claims

1, a kind of anti-blowby flour bolt lattice, comprise insert frame (2) and collecting tray, the main body of insert frame (2) is a timber structure, be frame (10) all around, top is provided with one deck compass screen surface net (1), the bottom is metallic sieve (12), abnormity cleaning piece (3) is set in the space between metallic sieve (12) and compass screen surface net (1), the collecting tray main body is a timber structure, form by inside casing (4) and housing (14), four angles are provided with fixed block (8), position between inside casing (4) and the housing (14) is fixing by stiffener (9), in collecting tray inside casing (4), be provided with one and collect base plate (5), it is characterized in that: insert frame (2) is half downward protrusion of frame (10) the lower width outside all around, and the thickness of collecting tray inside casing (4) is identical with the width of insert frame (2) frame (10), and half of its thickness inboard, top is protruding upward, insert frame (2) frame (10) is pegged graft mutually with collecting tray inside casing (4) and is fixed, and the collection base plate (5) in the collecting tray inside casing (4) is the inclined-plane.

2, anti-blowby flour bolt lattice according to claim 1, it is characterized in that: the outside joint between insert frame (2) frame (10) and the collecting tray inside casing (4) is provided with sealing strip (7).