CN2083076U

CN2083076U - Double-layer revolving drum screen

Info

Publication number: CN2083076U
Application number: CN 90224832
Authority: CN
Inventors: 李家曙
Original assignee: Guiyang City Environmental Sanitation Machinery Repair And Spare Parts Works (cn
Current assignee: Guiyang City Environmental Sanitation Machinery Repair And Spare Parts Works (cn
Priority date: 1990-12-11
Filing date: 1990-12-11
Publication date: 1991-08-21

Abstract

The utility model discloses a double-layer revolving drum screen which is a treating device for the urban refuse. An existing drum screen is only provided with a single layer of screen mesh. The components of the urban refuse is complicated; the water ratio of the urban refuse is high, so the screen mesh is easy to block up, affecting the screening effect. The utility model adopts that double layer meshes and a screen drum body coaxially rotate. The refuse passing through the coarse screening is made with the second screening through a fine screen, so the refuse is divided into fine materials, middle materials and coarse materials which are respectively and simultaneously discharged from three discharge hoppers. In addition, the utility model is provided with a hole clearing round brush which can continuously clear the fine screen mesh, so the blocking phenomenon is not existed; the screening efficiency is high. The utility model has the advantages of simple structure, low cost, good reliability and convenient operation and maintenance. The utility model can also be used in the way of the multiple uses of one machine. For example, the double-layer revolving drum screen is used for the screening of the products of mineral dressing, coals, etc.

Description

Double-layer revolving drum screen

The utility model is a kind of urban rubbish treatment unit.Also can be used for industries such as ore dressing, coal separation.

Handling municipal refuse with compost method, is a kind of fairly simple method, yet, even if the simplest composting process also be unable to do without screening plant.At present, be used for the screening plant of garbage disposal both at home and abroad, mostly be and roll the letter sieve, and be the simple sieve of rolling of individual layer screen cloth.Because municipal refuse composition complexity, the moisture content height often causes screened port to stop up in screening process easily, and classification is few.If adopt active sieve plate, though can change screen cloth, also can select the screen cloth of different apertures as required, use and still feel not too convenient.

In view of there are the problems referred to above in prior art, the objective of the invention is to, a kind of rotary screen with double-deck screen cloth is provided, make the eye diameter of the eye diameter of inner screen in the design greater than outer screen, during screening, rubbish at first enters internal layer and rolls letter sieve and carry out the scalping sorting, and the more fine-grained rubbish level under the sieve is carried out regrading through outer screen again, can reduce clogging on the one hand, reach the purpose of three grades of screenings simultaneously.

The utility model is mainly by frame (2), screen drum body (4), the anistree tube of scalping (11), dusting cover garden net (10), support roller (6), transmission mechanism (comprising motor, pulley concial disk, decelerator etc.) (7), feed hopper (3), coarse fodder discharge bucket (9), middle material discharge bucket (8), fines discharge bucket (1), upper shell (5), lower house (13) and clear hole round brush (12) etc. are partly formed.As depicted in figs. 1 and 2, clear hole round brush (12) is installed in upper shell (5) side, and brush is near dusting cover garden net (10), and its roller is connected with supporting-roller shaft by flat belt.Discharge bucket is pressed the order of fines discharge bucket (1), middle material discharge bucket (8), coarse fodder discharge bucket (9), is installed in the below of lower house (13) respectively.The anistree tube of scalping (11) is installed among the dusting cover garden net (10), has muscle that it is fixed, so that keep certain space between the two-layer screen cloth, this double-deck screen cloth is fixed on again in the screen drum body (4), and the anistree tube of scalping (11), dusting cover garden net (10).The longitudinal center line of screen drum body (4) coincides, coaxial rotation when making its work.The concrete structure of screen cloth as shown in Figure 3 and Figure 4, dusting cover garden net (10) is shorter than the anistree tube of scalping (11), for guaranteeing the screening of dusting cover, the anistree tube of scalping (11) is slightly littler than the eyelet of being longer than dusting cover garden wet end part with the screened port of dusting cover garden net (10) intersection.During the utility model work, the motor of transmission mechanism (7) rotates through pulley concial disk and decelerator, drive support roller (6), and support roller (6) frictionally drives screen drum body (4) rotation, is fixed on double-deck screen cloth on the screen drum body (4) then with screen drum body (4) coaxial rotation.The rubbish level enters the anistree tube of internal layer scalping (11) from feed hopper (3) and carries out the scalping sorting, in the following rubbish level major part of coarseness fall to arrive on the outer field dusting cover garden net (10) and carry out regrading, the fine-grained rubbish level that obtains through regrading is through the discharging of fines discharge bucket; Stay on the dusting cover garden net (10) middle granularity granulated garbage then with scalping latter half of the rescreening of anistree tube middle granularity granulated garbage down by middle material discharge bucket (8) discharging, the thick rubbish of staying at last more than the middle granularity that does not sift in the anistree tube of scalping (11) then axially enters coarse fodder discharge bucket (9) discharging by screen drum body (4).In the sieving garbage process, because the drive of supporting-roller shaft, clear hole round brush (12) and dusting cover garden net (10) counter-rotation are cleaned with water the mesh of dusting cover garden net (10), stop up to avoid mesh, improve screening efficiency.

The utility model is mainly used in environmental sanitation and carries out composition sorting and organic matter primary election in the treatment of urban garbage of many kinds, is a kind of ideal equipment of city compost Screening Treatment, also can be used for other industry such as ore dressing, the sorting of products such as coal simultaneously.Since scalping, dusting cover and screen drum body coaxial rotation on same body, and be provided with hole round brush clearly, thus no clogging, the screening efficiency height.Complete machine structure is simple, cost is low, good reliability, and operating maintenance is convenient, but and a tractor serves several purposes.Simultaneously, also have the condition of adjusting various technical parameters, the rotating speed of screen drum body (4) can be by changing the pulley concial disk adjustment; The inclination angle can be by the cushion block adjustment; Delivery rate can be by the conveyer adjustment.Be convenient to by test, thereby select rational technical parameter to adapt to the characteristics of different garbage disposals.

Description of drawings and embodiment.

Accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is the utility model A-A generalized section;

Accompanying drawing 3 is the utility model mesh structure schematic diagram;

Accompanying drawing 4 is the utility model mesh structure cutaway view,

Among the figure:

1---the fines discharge bucket;

2---frame

3---feed hopper;

4---the screen drum body;

5---upper shell;

6---support roller;

7---transmission mechanism (comprising motor, pulley concial disk, decelerator);

8---middle material discharge bucket

9---the coarse fodder discharge bucket;

10---dusting cover garden net;

11---the anistree tube of scalping;

12---clear hole round brush;

13---lower house.

Claims

1, the two-layer cylinder sieve is a kind of urban rubbish treatment unit, mainly by frame, the screen drum body, screen cloth, housing, support roller, transmission mechanism and discharge bucket etc. are partly formed, its technical characterictic of the utility model is: the internal layer of double-deck screen cloth is the anistree tube of scalping (11), be installed in the dusting cover garden net (10), make it fixing with muscle, keep between the two-layer screen cloth certain interval being arranged, this double-deck screen cloth is fixed on again on the screen drum body (4), and the anistree tube of scalping (11), dusting cover garden net (10), the longitudinal center line of screen drum body (4) overlaps, hole round brush (12) clearly is equipped with in the side of upper shell (5), its brush is near dusting cover garden net, its round brush wheel is connected with supporting-roller shaft by belt, the below of lower house (13) is provided with fines discharge bucket (1), middle material discharge bucket (8), coarse fodder discharge bucket (9).