CN2251439Y

CN2251439Y - Jig organ with sieve side air chamber

Info

Publication number: CN2251439Y
Application number: CN 96208655
Authority: CN
Inventors: 王宏; 钟会平; 刘宗时; 李均贵; 刘福泉
Original assignee: 王宏
Priority date: 1996-04-02
Filing date: 1996-04-02
Publication date: 1997-04-09
Anticipated expiration: 2006-04-02

Abstract

The utility model relates to a jigger body with an air chamber at a sieve side, which is used for coal washing. The utility model is improved on an old sieve side type jigger body. The utility model especially carries out hydroelectric simulation tests for a bending circular arc radius r of a partition wall, a circular arc radius R of a tapered head, the distance alpha of the lower end of the partition wall and a central line of the body and an included angle beta of tangential tangents of a tapered bucket and a tapered bucket circular arc, and the radius r, the radius R, the distance alpha and the included angle beta influence pulsating currents and wave heights; a point value is optimized, through field experiments, the pulsating currents are consistent, the wave heights are equal, the loose degrees of material bed layers are consistent, and stratification and selection effects are good. Compared with an old body, the utility model can effectively enhance coal washing quality and output.

Description

The Baum jig body

The utility model relates to the jig body that a kind of coal washing is used, particularly a kind of Baum jig body.

The sieve side jigger body of always continuing to use at coal washing industry, its air chamber places jigging machine one side, demarcate by partition wall between air chamber and the jigging chamber, the air of compression is pressed to the air chamber bottom with liquid, walk around the partition wall lower end and enter jigging chamber, jigging chamber produces fluctuating flow under compressed-air actuated interrupted supply, the material above the sieve plate is carried out layering and sorting.Unbalanced with this body long-term existence bed, the inconsistent problem of layering, have a strong impact on coal washing output and quality, for this reason, the spy carries out clear water water power simulation test to this kind body, find this jigging chamber fluctuating flow broad ways skewness, away from the fluctuating flow of air chamber one side than smooth sea higher primary school; Fluctuating flow near air chamber one side is tall and big than high-amplitude wave, and this is to cause material bed loose inequality on whole width, the inconsistent main cause of layering, simultaneously, on width, there is water-head, makes material produce transverse movement and pollution mutually, directly influence the quality of coal washing.

The purpose of this utility model is to provide a kind of preferred point value about sieve side jigger body structural dimensions that obtains through the water power simulation test, be evenly distributed to reach the fluctuating flow broad ways, the loose unanimity of bed, the Baum jig body that layering and separating effect are desirable.

The technical solution of the utility model is achieved in that on the basis of existing sieve side jigger body carries out advantageous embodiment, and on the body width, the bottom of partition wall is to the bending of jigging chamber direction, and partition wall bottom and crooked circular arc are tangent; The awl bucket of underpart is by tangent with it awl bucket circular arc and body upper is tangent is connected as a single entity.Through repeatedly changing partition wall bending radius r, distance alpha between partition wall lower end and the body center's line, bore the size of the tangent line angle β of bucket arc radius R and awl bucket and awl bucket circular arc, the following table of pairing preferred point value between size r, α, R and the β (unit of r, α, R is a millimeter in the table):

Type	I	II	III	IV
Type	I	II	III	IV	r	153	345	444	644
α	0	172	150	50	r	153	345	444	644
α	0	172	150	50	R	467	855	1056	1556
β	30°	30°	30°	30°	R	467	855	1056	1556

By the Baum jig body that the pairing point value of above-mentioned type is manufactured, through clear water water power simulated test, jigging chamber fluctuating flow broad ways branch is deposited evenly the wave height unanimity.In the test, the material bed is loose even on whole width at the scene, and the type ideal before layering and concentration criterion are transformed can improve the output and the quality of coal washing effectively.

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

With reference to Fig. 1.The utility model be on old-fashioned sieve side jigger body, carry out improved, between air chamber (2) and jigging chamber (4), demarcate by partition wall (6), the bottom of partition wall that is in sieve plate (1) below is to jigging chamber (4) direction bending, and partition wall bottom circular arc crooked with it (3) is tangent.The awl bucket (9) of body (5) bottom is connected as a single entity with body upper is tangent by tangent with it awl bucket circular arc (8).The horizontal center line of the center of radius O of the crooked circular arc of dividing plate (3) is by awl bucket circular arc (8) and the tangent point of contact conllinear of body upper, and vertical center line (7) overlaps with the lateral symmetry face of body (5).Crooked arc radius center O also is simultaneously the center of awl bucket circular arc R.According to the preferred point value of described each size, compressed air enters jigging chamber with the liquid of internal body through the partition wall lower end through air chamber (2), can obtain uniform fluctuating flow, obtains consistent wave height near sieve plate (1).The material on sieve plate top is able to good layering and sorting, and can material not polluted.

Claims

1, a kind of Baum jig body, it is advantageous embodiment on the basis of existing sieve side jigger body, on body (5) width, the bottom of partition wall (6) is characterized in that to the bending of jigging chamber direction: the awl bucket of body (5) bottom is by tangent with it awl bucket circular arc and body upper is tangent is connected as a single entity; The bending radius r of partition wall (6), distance alpha between partition wall lower end and the center line (7), the following table of pairing preferred point value between the tangent line angle β of awl bucket circular arc (8) radius R and awl bucket (9) and awl bucket circular arc (8) (unit of r, α, R is a millimeter in the table): Type I II III IV r 153 345 444 644 α 0 172 150 50 R 467 855 1056 1556 β 30° 30° 30° 30°