CN2485055Y

CN2485055Y - Drum screen

Info

Publication number: CN2485055Y
Application number: CN 01229735
Authority: CN
Inventors: 李保元
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-05
Filing date: 2001-07-05
Publication date: 2002-04-10
Anticipated expiration: 2011-07-05

Abstract

The utility model relates to a drum screen which comprises a shell, a chute, a main shaft and a screen device arranged in the shell; wherein, the screen device comprises a support ring of terminal screen propped on the shell and a screen which is arranged between the support ring of terminal screen through take-up screw and nut. The screen device also comprises pluralities of middle screen support rings which are arranged on the take-up screw, a helix thruster of material positioned at the front end of the main shaft and a packing auger of material arranged at the lower part of the shell. The external cylinder of the helix thruster of material is communicated with the chute and is provided with pluralities of material outlet ports and switches. Pluralities of screens with different screen numbers are respectively arranged between the two adjacent support rings of screen. And pluralities of flour ports are arranged on the shell below the packing auger of material.

Description

Drum sieve

Technical field

The utility model is put it briefly and is related to a kind of drum sieve, relates in particular to a kind of drum sieve that integrates scalping, middle sieve, dusting cover.

Background technology

At present aspect the flour making, the drum sieve that is used for the separate unit flour mill has only a kind of screen cloth of order number usually, in the screen process, can only crude separation maybe can only segment from flour, thereby make the wheat bran of flour many, pink colour is poor, ash is big, perhaps flour extraction is low, power consumption is high.

The utility model content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and the drum sieve that a kind of flour extraction height, quality are good, power consumption is low is provided.

The utility model drum sieve comprises the housing that is made of screen drum, drive end bearing bracket and rear end cap, be installed in hopper on the housing, be arranged on main shaft in the housing, whitewash poking device and screening plant.The wherein said poking device that whitewashes comprises the bracing frame that is fixed on the main shaft rear portion and is fixed on whitewashing and switch-plate on the support frame as described above.Described screening plant comprises end screen cloth filler ring and the screen cloth that is supported on respectively on drive end bearing bracket and the rear end cap.Described screen cloth is fixed between the screen cloth filler ring of both ends by tensioning screw, nut tensioning.Wherein also comprise several middle screen cloth filler rings, the emptying auger that is arranged on the feed auger of main shaft front portion and is positioned at lower housing portion.Described feed auger comprises the charging screw feeder urceolus outer with being sleeved on the charging screw feeder that is positioned at the main shaft front portion and fuses with it.Urceolus is communicated with feed hopper bottom, which is provided with at least one discharging opening and with the discharging opening switch of its perisporium top discharge mouth cooperating.The screen cloth filler ring is set in parallel on two tensioning screws between the screen cloth filler ring of end in the middle of described.Described screen cloth comprises several that the order number is different, reaches between screen cloth filler ring and the end screen cloth filler ring in the middle of they are separately positioned between adjacent two middle screen cloth filler rings.On the housing below the described emptying auger, be provided with several flour outlets.Two installation bearing bars are equipped with in the bottom in housing.

The utility model drum sieve, wherein said bracing frame comprise two disks on the main shaft that vertically is fixed in charging screw feeder rear, be arranged on having the dull and stereotyped of elongated slot and being arranged on the frame that whitewashes on the flat board by bolt of disk periphery.

The utility model drum sieve, wherein said switch-plate are provided with the identical helical teeth in several angles of inclination.

The utility model drum sieve, wherein said charging screw feeder is opposite with the rotation direction of emptying auger.

The utility model drum sieve, wherein said middle screen cloth filler ring and discharging opening switch are two, and screen cloth, discharging opening, flour outlet are three.

The utility model drum sieve is owing to the screen cloth that has been equipped with multiple different meshes such as wide-meshed screen, middle screen cloth, fine screen mesh, so the material that different operations produce in pulverizing process can come screen with the screen cloth of different meshes.For example at the preliminary stage of wheat flour milling, wheat bran is big, flour is many, opaque is good, be fit to coarse fraction from; And at the later stage of wheat flour milling, wheat bran is little, flour is few, opaque is poor, is fit to separate with dusting cover, so the utility model drum sieve has flour extraction height, quality is good, power consumption is low characteristics.

Other details of the utility model drum sieve and characteristics can just can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the utility model drum sieve;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the switch-plate structural representation of the utility model drum sieve;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the slab construction schematic diagram of the utility model drum sieve.

The specific embodiment

Comprise the housing that constitutes by screen drum 1, drive end bearing bracket 2 and rear end cap 3 as Fig. 1 to the utility model drum sieve shown in Figure 5.Be provided with hopper 21 on drive end bearing bracket 2 tops, be provided with main shaft 4 and screening plant 6 in housing, be provided with feed auger 10 in main shaft 4 front portions, the rear portion is equipped with and is whitewashed poking device 5.The bottom is provided with emptying auger 11 in housing.Wherein feed auger 10 comprises with the charging screw feeder 101 of main shaft 4 one and is sleeved on the outer urceolus 102 of charging screw feeder 101, one end of urceolus 102 is communicated with hopper 21 bottoms, its perisporium is provided with two discharging openings 131,132, is set with the discharging opening switch 141,142 with discharging opening 131,132 cooperatings outside urceolus 102.Screening plant 6 comprises by tensioning screw 8 and is supported on screen cloth filler rings 71 in the middle of end screen cloth filler ring 7 on drive end bearing bracket 2 and the rear end cap 3, screen cloth 9 and two respectively.The screen cloth 9

different screen cloth

91,92,93 of thin three kinds of order numbers that comprises slightly, neutralizes, they by nut 8 ' in turn tensioning be fixed on the end screen cloth filler ring 7 of drive end bearing bracket 2 and in the middle of first between screen cloth filler ring 71, in the middle of first screen cloth filler ring 71 with second in the middle of between the screen cloth filler ring 71, in the middle of second on the tensioning screw 8 between screen cloth filler ring 71 and the rear end cap 3.Scalping district I, middle sieve district II and dusting cover district III have so just been formed.Whitewash poking device 5 and comprise that the bracing frame 51 that is fixed on main shaft 4 rear portions and fixed interval whitewash 510 and switch-plate 511 (see figure 2)s on bracing frame 51.510 the effect of whitewashing is to guarantee the permeability of screen cloth 9, prevents sieve pore blockade.Switch-plate 511 is provided with the identical helical teeth in several angles of inclination 516 (seeing Fig. 3 Fig. 4), plays the effect of stirring and pushing material.Bracing frame 51 comprises two disks 512 on the main shaft 4 that all vertically is fixed in feed auger 10 rears, be arranged on disk 512 peripheries the flat board 513 with elongated slot 517 (see figure 5)s and by bolt 514 be arranged on being equipped with on dull and stereotyped 513 whitewash 510 and switch-plate 511 whitewash frame 515.The effect of dull and stereotyped 513 elongated slot 517 is conveniently to whitewash the installation of frame 515.The bracing frame 51 of this kind design can be regulated the distance of whitewashing frame 515 relative screen clothes 9 by turning bolt 514, thus guarantee to whitewash 510 and switch-plate 511 give full play to separately function.When being provided with three flour with a lid outlets 151,152,153 on the housing below emptying auger 11 and using, open one, and close that two emptying augers 11 are opposite with the rotation direction of charging screw feeder 101 in addition.For the ease of installing, two installation bearing bars 16 are equipped with in the contiguous tensioning screw in bottom 8 positions in housing.During installation, can easily main shaft 4 be pushed housing together with whitewashing poking device 5 and screening plant 6 rear end along two installation bearing bars 16 from screen drum 1, drum sieve described in the utility model also is applicable to other kind flour mill.

For example when using wheat flour milling, at first open the discharging opening 131 of scalping district I and the discharging opening 132 of middle scalping district II by Drawing switch 141,142, add preceding road material after the grinding in the material bin 21 under the effect of feed auger 10, fall into through discharging opening 131 on the screen cloth 91 of scalping district I, rotation at a high speed whitewash 510 and the brush sieve and impetus of switch-plate 511 under, flour in the material sees through

screen cloth

91,92,93 along with emptying auger 11 flows out through discharging opening 151, and the wheat bran in the material can not see through screen cloth, is flowed out by bran outlet 17.The preceding 2 road grinding materials of screen according to said method; Then, close the discharging opening 131 of scalping district I, the middle road grinding material that adds material bin 21 like this, under the effect of feed auger 10, fall into through discharging opening 132 on the screen cloth 92 of scalping district II, rotation at a high speed whitewash 510 and the brush sieve and impetus of switch-plate 511 under, the flour in the material sees through

screen cloth

92,93 along with emptying auger 11 flows out through discharging opening 151, and the wheat bran in the material is by bran outlet 17 outflows.The ensuing 3-4 of screen according to said method road grinding material; Then, the discharging opening 132 of scalping district II in closing, the way of escape grinding material that adds material bin 21, under the effect of feed auger 10, fall into through discharging opening 133 on the screen cloth 93 of dusting cover district III, rotation at a high speed whitewash 510 and the brush sieve and impetus of switch-plate 511 under, the flour in the material sees through screen cloth 93 along with emptying auger 11 flows out through discharging opening 151, and the wheat bran in the material is by bran outlet 17 outflows.The ensuing 5-6 of screen according to said method road grinding material.The flour quality of making through this kind process is good, the productive rate height.In addition in pulverizing process, discharging opening the 152, the 153rd uses when producing grade flour, use is such, at first the carse, medium and small screen cloth in three screen districts be replaced with carefully, in, fine screen mesh, discharging opening 151,152,153 is opened simultaneously, or only open discharging opening 151,152, close 153 flour that just can produce different brackets.By changing screen cloth, also can be used to other material of screen in addition, for example Mai Xin etc.

Claims

1, a kind of drum sieve, comprise by screen drum (1), the housing that drive end bearing bracket (2) and rear end cap (3) constitute, be installed in the hopper (21) on the housing, be arranged on the main shaft (4) in the housing, whitewash poking device (5) and screening plant (6), the wherein said poking device (5) that whitewashes comprises the bracing frame (51) that is fixed on main shaft (4) rear portion and is fixed on and whitewashes (510) and switch-plate (511) on the support frame as described above (51), described screening plant (6) comprises end screen cloth filler ring (7) and the screen cloth (9) that is supported on respectively on drive end bearing bracket (2) and the rear end cap (3), described screen cloth (9) is by tensioning screw (8), nut (8 ') tensioning is fixed between the both ends screen cloth filler rings (7), it is characterized in that also comprising several middle screen cloth filler rings (711,712), be arranged on the anterior feed auger (10) of main shaft (4) and be positioned at the emptying auger (11) of lower housing portion, described feed auger (10) comprises and is positioned at the anterior and charging screw feeder (101) that fuses with it of main shaft (4) and is sleeved on charging screw feeder (101) urceolus (102) outward, urceolus (102) is communicated with hopper (21) bottom, which is provided with at least one discharging opening (131,132,133) and with perisporium top discharge mouth (131,132) the discharging opening switch (141 of cooperating, 142), screen cloth filler ring (711 in the middle of described, 712) be set in parallel on the tensioning screw (8) between two end screen cloth filler rings (7), described screen cloth (9) is different several of order number, screen cloth filler ring (711 in the middle of they are separately positioned on, 712) screen cloth filler rings (711 and between the end screen cloth filler ring (7) and in the middle of adjacent two, 712) between, on the housing of described emptying auger (11) below, be provided with several flour outlets (151,152,153), two installation bearing bars (16) are equipped with in the contiguous screen cloth bracing frame (8) in bottom position in housing.

2, drum sieve according to claim 1, it is characterized in that support frame as described above (51) comprises two disks (512) on the main shaft (4) that vertically is fixed in charging screw feeder (10) rear, be arranged on the flat board with elongated slot (517) (513) of disk (512) periphery and be arranged on and whitewash frame (515) on the flat board (513) by bolt (514).

3, drum sieve according to claim 2 is characterized in that described switch-plate (511) is provided with the identical helical teeth in several angles of inclination (516).

4, drum sieve according to claim 3 is characterized in that described charging screw feeder (101) is opposite with the rotation direction of emptying auger (11).

5, according to claim 1,2,3 or 4 described drum sieves, it is characterized in that described middle screen cloth filler ring is two (711), (712), the discharging opening switch is two (141), (142), screen cloth is three (91), (92), (93), discharging opening is three (131), (132), (133), and the flour outlet is three (151), (152), (153).