CN201094936Y

CN201094936Y - Feeding apparatus of centrifugal discharge centrifuge

Info

Publication number: CN201094936Y
Application number: CNU2007200467743U
Authority: CN
Inventors: 顾坤一; 张海; 张威; 陈伟; 陈亚东
Original assignee: JIANGSU MUDAN CENTRIFUGE MANUFACTURING Co Ltd
Current assignee: JIANGSU MUDAN CENTRIFUGE MANUFACTURING Co Ltd
Priority date: 2007-09-18
Filing date: 2007-09-18
Publication date: 2008-08-06
Anticipated expiration: 2017-09-18

Abstract

The utility model discloses a feeding device of a centrifugal unloading centrifuge that can uniformly distribute suspension along the circle of the small end of a revolving drum. The feeding device comprises a shell; a rotary spindle is arranged in the shell and is provided with the revolving drum; the external side of the bottom of the revolving drum forms an inward sagged so as to form a bunker; the bunker bottom is communicated with a plurality of material through-holes that are arranged on the same circle of the bottom of the revolving drum; the inner wall of the shell is provided with a collecting hopper that matches the bunker; and the collecting hopper is communicated with a plurality of feeding tubes that are arranged in the shell. The feeding device of the utility model can lead to the smooth operation of the centrifuge in the working process, so as to ensure the normal filtering, drying and discharging and other processes of the centrifuge. Thus the feeding device greatly reduces the mechanical failures.

Description

Feed arrangement in the centrifugal discharging type centrifugal machine

Technical field

The utility model relates to centrifugal discharging type centrifugal machine, refers more particularly to the feed arrangement in the centrifugal discharging type centrifugal machine.

Background technology

Centrifugal discharging type centrifugal machine is a kind of automatic continuous discharge centrifuge that does not have mechanical device for discharging.Its rotary drum is conical, and filter residue is in conical rotor drum, and the suffered centrifugal force of dependence itself overcomes itself and the frictional force of screen cloth, makes filter residue move to the big end of rotary drum along screen surface, discharges rotary drum at last voluntarily, finishes separation and discharging in mobile.Because this kind centrifuge is finished processes such as charging, separation, drying and discharging automatically continuously under full speed, have advantages such as simple in structure, that efficient is high, treating capacity is big, running and maintenance cost are low, obtained utilization widely in industries such as chemical industry, food, mining.At present, feed arrangement in the centrifugal discharging type centrifugal machine generally includes: be located in the feed pipe in the cover, be provided with conical distributing device in the bowl, its big or small extreme direction is opposite with rotary drum, be the small end of the big end of distributing device near rotary drum, described feed pipe stretches in the distributing device.The course of work that the centrifugal discharging type centrifugal machine of above-mentioned feed arrangement is installed is: suspension enters into distributing device along feed pipe, and by distributing device promptly big end port spills cloth on the screen cloth of the rotary drum body inwall of rotary drum small end with suspension from its exit, along with constantly entering of suspension, the suspension that arrives in advance on the screen cloth moves to the big end of rotary drum under the extruding of the suspension that arrives soon after, under centrifugal action, most of liquid phase is discharged rotary drum through the filter opening of screen cloth areola and rotary drum body, contains the filter residue that retains liquid on a small quantity and is trapped within on the screen cloth.This filter residue is subjected to centrifugal action in rotary drum (cone-element), produce along the component of rotary drum bus towards the big end of rotary drum, and this power is as if the frictional force greater than filter residue and screen cloth, and filter residue just slides to big end along compass screen surface.Along with roller diameter increases, the centrifugal force that filter residue is subjected to also increases gradually, so filter residue is attenuation gradually, proceeds to take off liquid, and is last, and filter residue moves on to the promptly big end port in rotary drum exit, is thrown out of rotary drum, thereby finishes the course of work of centrifuge.This shows that suspension is carried out to big end by the rotary drum small end continuously from the process that is separated to discharging; Suspension and filter residue are to be the thin layer state along the rotary drum body conical surface to pass through fast simultaneously.Can suspension just become the key of separation and discharge process in the even distribution of rotary drum small end like this, if suspension can not evenly distribute along the rotary drum body circumference of rotary drum small end, will certainly make entire work process discontinuous, more seriously: if suspension and filter residue skewness on the rotary drum body circumference, centrifuge under running up will high vibration, is very easy to take place mechanical breakdown and jeopardizes personal safety.In fact, because the impossible stable and consistent of concentration, inlet and the flow velocity etc. of suspension in the most technological process, also may there be error in the assembling of distributing device, and therefore this feed arrangement is difficult to accomplish that suspension evenly distributes along the rotary drum body circumference of rotary drum small end.

The utility model content

Technical problem to be solved in the utility model is: provide a kind of suspension that makes along the feed arrangement in the equally distributed centrifugal discharging type centrifugal machine of rotary drum small end drum wall circumference.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the feed arrangement in the centrifugal discharging type centrifugal machine, comprise: casing, be provided with the main shaft of rotation in the casing, main shaft is provided with rotary drum, lateral sunken inside at the bottom of the rotary drum, form feed bin, the feed bin bottom be arranged on rotary drum at the bottom of same circumference on several evenly material paths of layouts communicate; The inwall of described casing is provided with the remittance hopper that matches with feed bin, and the hopper that converges is connected with some feed pipes in being located in casing.

Some above-mentioned feed pipes are that the center is located in the casing equably with the main shaft.

The beneficial effects of the utility model are: because some material paths of feed bin are opened on the same circumference, the centrifugal force that suspension bears in this place is identical, enter the bottom of rotary drum small end simultaneously, and evenly distribute along the rotatory drum wall circumference, form the uniform circular filter cake layer at rotary drum small end inwall, make centrifuge turn round in the course of the work steadily, thereby guaranteed normally the carrying out of processes such as filtration, drying and discharging of centrifuge, significantly reduced the generation of mechanical breakdown.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Among the figure: 1, feed pipe, 2, converge hopper, 3, feed bin, 4, rotary drum, 5, screen cloth, 6, cover, 7, lotion pipeline, 8, slag-drip opening, 9, leakage fluid dram, 10, casing, 11, material path, 12, main shaft.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As shown in Figure 1, feed arrangement in the centrifugal discharging type centrifugal machine described in the utility model, comprise: casing 10, be movably set with the main shaft 12 that drives by spindle motor in the casing 10, main shaft 12 is provided with rotary drum 4, lateral sunken inside at the bottom of the rotary drum, form feed bin 3, several on the bottom of feed bin 3 and the same circumference that is arranged on rotary drum 4 bottoms evenly material paths 11 of layouts communicate; The inwall of casing 10 is provided with the remittance hopper 2 that matches with feed bin 3, and the hopper 2 that converges is connected with some feed pipes 1 in being located in casing 10.In the present embodiment, described some feed pipes 1 are that the center is located in the casing 10 equably with main shaft 12.

The course of work that is provided with centrifuge of the present utility model is: centrifuge principal axis 12 drives rotary drum 4 and feed bin 3 rotation at a high speed.Suspension is imported, is collected in the feed bin 3 through remittance hopper 2 by some feed pipe 1, under centrifugal action, suspension is conical small end one side via the inboard that feed bin 3 bottoms several material paths 11 by rotary drum 4 bottoms pour in rotary drum 4 bottoms simultaneously, under action of centrifugal force, most of liquid phase in the suspension is discharged rotary drum 4 through the filter opening of screen cloth 5 areolas, rotary drum 4, and the leakage fluid dram from casing 10 9 is discharged to outside the machine; The filter residue that contains a small amount of liquid phase then is trapped within on the screen cloth 5, and centrifugal force promotes filter residues along the bus of rotary drum 4 to the component of rotary drum 4 big ends, filter residue is overcome and screen cloth 5 between frictional force, slide to rotary drum 4 big ends along compass screen surface.At this moment, cleaning solution is imported by the lotion pipeline 7 that is located on the cover 6, and cleaning solution is spilt on the cloth filter residue that 4 big ends slide along screen cloth towards rotary drum in rotary drum 4, reaches the purpose that eccysis impurity improves the quality of products; Filter residue through washing continues to slide to rotary drum 4 big ends, and the further contained liquid phase of filtering, and last, filter residue throws away rotary drum 4 by the promptly big end port in the exit of rotary drum 4, outside the slag-drip opening 8 discharge machines on casing 10, thereby finishes the entire work process of centrifuge.

Because several material paths 11 of feed bin 3 are opened on the same circumference, the centrifugal force that suspension bears in this place is identical, enter the bottom of rotary drum 4 small ends simultaneously, and evenly distribute along rotary drum 4 bottom circumference, make centrifuge turn round in the course of the work steadily, thereby guaranteed normally the carrying out of processes such as filtration, drying and discharging of centrifuge, significantly reduced the generation of mechanical breakdown.

Claims

1. the feed arrangement in the centrifugal discharging type centrifugal machine, comprise: casing, be provided with the main shaft of rotation in the casing, main shaft is provided with rotary drum, it is characterized in that: the lateral sunken inside at the bottom of the rotary drum, form feed bin, the feed bin bottom be arranged on rotary drum at the bottom of same circumference on several evenly material paths of layouts communicate; The inwall of described casing is provided with the remittance hopper that matches with feed bin, and the hopper that converges is connected with some feed pipes in being located in casing.

2. feed arrangement as claimed in claim 1 is characterized in that: described some feed pipes are that the center is located in the casing equably with the main shaft.