CN201419158Y

CN201419158Y - Horizontal-type automatic-discharging coal powder sieve

Info

Publication number: CN201419158Y
Application number: CN2009200637048U
Authority: CN
Inventors: 卿笃礼
Original assignee: HENGYANG TAIHE MACHINERY INDUSTRY Co Ltd
Current assignee: HENGYANG TAIHE MACHINERY INDUSTRY Co Ltd
Priority date: 2009-03-13
Filing date: 2009-03-13
Publication date: 2010-03-10
Anticipated expiration: 2019-03-13

Abstract

The utility model relates to a horizontal-type automatic-discharging coal powder sieve used for blast-furnace coal powder injection. The coal powder sieve comprises a shell and a motor, wherein the shell is provided with a feeding hole and a discharging hole. The coal powder sieve is characterized in that the shell is internally provided with a cone frustum shaped horizontal-type sieve drum that is slant to the feeding hole; the two ends of the central shaft of the sieve drum are respectively arranged on bearings that are arranged on the outer side surface of the shell; a purging hole is arranged on an upper cover at the top part of the shell; and a deslagging hole is arranged on the shell that corresponds to the lower surface of the big end of the sieve drum. By improving the traditionalvertical sieve basket into the horizontal-type cone frustum shaped sieve drum, the area of the sieve surface is large, the coal powder sieve can realize on-line automatic deslagging, the sieving effect is good, and the sieving quality is high; the sieve surface can be purged at any time by adopting the purging hole arranged on the upper cover, so that the sieve surface can be prevented from beingblocked, and the manpower cleaning and maintenance can also be convenient; as the sieve drum is supported by the axial double bearings, the running is more table; the bearings are arranged outside theshell, therefore, the burnt out of the motor caused by the corrosion of coal powder can be avoided, and the working can be safe and reliable.

Description

Horizontal automatic discharge formula pulverized coal sieve

Technical field

The utility model relates to the pulverized coal sieve subset in a kind of pulverized coal injection powder craft, particularly a kind of horizontal automatic discharge formula pulverized coal sieve.

Background technology

In the pulverized coal injection powder craft, can spray into blast furnace smoothly, not cause plugging to block up the rifle phenomenon in order to guarantee coal dust, need to adopt special pulverized coal sieve that the foreign material in the coal dust are screened out.At present, the pulverized coal sieve of employing mainly contains rotary screen, vibratory sieve, reciprocating screen, gravity flow screen etc., and wherein rotary screen generally drives the compass screen surface rotation and screening continuously by the deadweight of motor or powder stream, but because compass screen surface designs for integral planar, cover surface is little, and screening effect is poor, changes the compass screen surface inconvenience; Foreign material are easily got rid of to the edge blocks the stifled motor bearings of compass screen surface or card, causes it can't rotate even burn out motor, and tiny foreign material easily fall down from the edge influences screening quality; Compass screen surface very easily stops up compass screen surface not from cleaning function, increases labor cleaning's number of times, influences ordinary production, must stir motor with hand during the labor cleaning, and cleaning speed is slow, effort, dangerous.

Summary of the invention

The purpose of this utility model is in order to overcome the above-mentioned weak point of prior art, and a kind of screening effect is good, quality is high and provide, and is convenient to cleaning, maintenance, and steady, safe horizontal automatic discharge formula pulverized coal sieve turns round.

The purpose of this utility model is achieved in that horizontal automatic discharge formula pulverized coal sieve comprises that the side has charging aperture, bottom that the shell of discharging opening is arranged, motor, it is characterized in that being equipped with in the shell the horizontal screen drum of truncated cone that tilts to charging aperture, the central shaft two ends of screen drum are installed in respectively on the bearing on the shell lateral surface, motor and screen drum axle one end are in transmission connection, covered purge hole on the cover top portion, on the shell below the big end of corresponding screen drum slag-drip opening has been arranged.

The utility model changes traditional vertical basket into horizontal taper type screen drum owing to adopt above architecture advances, and cover surface is big, can on-line automatic scarfing cinder, and screening effect is good, quality is high.Use compressed air blow spray cleaning pipe by on the purge hole that covers can clean compass screen surface at any time, prevent that screen drum from stopping up, enhance productivity, only need open loam cake when labor cleaning, maintenance and can conveniently carry out, reduce production costs.Screen drum is supported by axial duplex bearing, and it is more steady to turn round, and bearing is installed in outside the shell, can avoid the coal dust erosion and cause motor to burn out, and is safe and reliable.

Description of drawings

Fig. 1 is existing rotary screen structural representation;

Fig. 2 is the utility model structural representation.

The specific embodiment

Now illustrated embodiment is made detailed description to the utility model in conjunction with the accompanying drawings.

As shown in Figure 2, horizontal automatic discharge formula pulverized coal sieve comprises that the side has charging aperture 1, bottom that the shell 5 of discharging opening 9 is arranged, motor 7, the horizontal screen drum 4 of truncated cone that tilts, connected and composed by the fritter combination of screens to charging aperture 1 is installed in the shell 5, the screen drum angle of inclination of present embodiment is chosen 12 °, the central shaft two ends of screen drum 4 are installed in respectively on the bearing 10 on shell 5 lateral surfaces, motor 7 is connected with screen drum axle one end belt transmission by decelerator 6, on the loam cake 2 at shell 5 tops purge hole 3 is arranged, corresponding screen drum 4 big ends on the following shell have slag-drip opening 8.During work, drive screen drum 4 rotations by motor 7 by decelerator 6 deceleration backs, powder falls in the screen drum 4 from charging aperture 1, and the qualified powder after screening enters in the shell 5, flowed out by discharging opening 9, the light weight sundries in the powder is discharged from slag-drip opening 8 automatically by bevel-type screen drum 4 again.

Claims

1, a kind of horizontal automatic discharge formula pulverized coal sieve, comprise that the side has charging aperture (1), bottom that the shell (5) of discharging opening (9) is arranged, motor (7), it is characterized in that being equipped with in the shell (5) the horizontal screen drum of truncated cone (4) that tilts to charging aperture (1), the central shaft two ends of screen drum (4) are installed in respectively on the bearing (10) on shell (5) lateral surface, motor (7) is in transmission connection with screen drum axle one end, on the loam cake (2) at shell (5) top purge hole (3) is arranged, the big end on the following shell of corresponding screen drum (4) has slag-drip opening (8).

2, horizontal automatic discharge formula pulverized coal sieve as claimed in claim 1 is characterized in that screen drum (4) is connected and composed by the fritter combination of screens.