CN2170156Y

CN2170156Y - High-frequency hydraulic screening machine

Info

Publication number: CN2170156Y
Application number: CN 93220459
Authority: CN
Inventors: 吴曙光; 许建本
Original assignee: Changsha Research Institute Of Mining And Metallurgy ministry Of Metallurgical Industry
Current assignee: Changsha Research Institute Of Mining And Metallurgy ministry Of Metallurgical Industry
Priority date: 1993-07-27
Filing date: 1993-07-27
Publication date: 1994-06-29
Anticipated expiration: 2003-07-27

Abstract

A high-frequency hydraulic screening machine for industries such as metal ore, non-metal ore, chemical industry and building materials mainly comprises the following structures: the device comprises a high-frequency vibrator (1), a rubber spring (2), a screen frame (6), a double-layer screen (7), a vertical cylinder (8), a hydraulic classification chamber (12), a water replenishing pipe (13) with holes, a water replenishing plate (14) and the like. The screening granularity is 0.5-0.03 mm, and the screening sieve has the advantages of simple structure, high screening efficiency, no blockage of the screen, long service life and the like, and is particularly suitable for flaky difficult-to-screen materials such as graphite, mica and the like.

Description

High-frequency hydrosizer

The utility model relates to the equipment that in the industries such as metallic ore, nonmetallic ore, chemical industry, building materials material is carried out the wet type fine sizing.

Vertical garden shaft screen in the existing wet screening equipment, its primary structure is to stand on complete machine top with the short garden of the major diameter shaft screen that nylon sieve plate is assembled into, the bottom then is the cylindrical shell of taper, the water pipe of adding ascending water is arranged at the cone bottom, shaft screen lower end, garden is connected by the rubber enclosure with cylindrical shell, and the major diameter impeller is installed in the shaft screen of garden.The subject matter that this kind equipment exists is: rotary blade is invested compass screen surface with material, and the coarse-grained material obstruction fine that descends along compass screen surface sieves thoroughly; Used nylon sieve plate minimum-value aperture is 0.15 millimeter.Use the aperture less than 0.15 millimeter woven screen, then sieve aperture easily stops up; Nylon mesh is not suitable for the screening of laminar material; Ascending current speed is inhomogeneous, relatively poor to the grading effect of fine.(seeing " metal mine " 1991 the 5th phases).

The purpose of this utility model provides and a kind ofly is suitable for the various materials wet screening of (comprising laminar material), both used little woven screen, the sieve aperture to 0.03 millimeter in aperture to become to be difficult for obstruction, screen cloth long service life, wet type fine sizing equipment that screening efficiency is high.

For achieving the above object, primary structure of the present utility model comprises following three parts:

One, dither mechanism is made up of parts such as dither, rubber spring, connecting rod and supports.Dither is connected with garden shaft screen screen frame by connecting rod, makes the garden shaft screen produce the dither of frequency 900～3000Hz, is beneficial to ore pulp circulation, the difficult obstruction of sieve aperture, and connecting rod links to each other with support by rubber spring.

Two, the vertical garden shaft screen that is long cartridge type inside and outside is made up of parts such as dispenser, screen frame, screen cloth, cylindrical shell, rubber enclosures.Wherein:

1). the screen frame that forms long tube in the shaft screen of garden is to be connect by some stainless steels garden bar and upper and lower two stainless steel garden boxing to form;

2). the peripheral topped double-layer stainless steel screen cloth of screen frame, its internal layer are the support screen in 3～5 millimeters in aperture, and skin is the screen cloth (pore size is decided by required screen size) in 0.5～0.03 millimeter in aperture;

3). the shaft screen foreign minister tube cylindrical shell top that connects one with support has overfall, makes liquid level keep constant, and the bottom of foreign minister's tube cylindrical shell has valve and gets rid of undersize, and top center is equipped with dispenser.

Three, the hydraulic classiciation chamber is the garden column casing and upwards expands the two parts that are taper by the garden column casing and form.Wherein:

1). the grading room bottom is inserted by the screw thread level and is added water pipe, the two side holes of adding water pipe is injection water and form the Rotating with Uniform ascending current tangentially, fine granular materials arrives compass screen surface rapidly under the effect of current in the river rising in Ningxia and flowing into central Shaanxi, make that fine fraction content significantly reduces in the oversize, screening efficiency is improved, the coarse granule material does not accumulate in compass screen surface in the inner sedimentation of garden shaft screen, material must not bear in dispersion suspension state, screen cloth under dither and does not sieve weight of material thoroughly, and screen cloth is worn and torn little and service life.

2). grading room bottom is connected to the water hole plate of adding with holes, adds water and upwards sprays from plate hole and make oversize handle suspension and discharge by the valve of grading room bottom smoothly.

3). grading room taper top mouth is connected with garden shaft screen screen frame by the rubber enclosure, and one is welded in the outside cylindrical shell bottom with the garden shaft screen of taper.

Accompanying drawing 1 is a basic structure schematic diagram of the present utility model.Its drawing label is: 1-vibrator, 2-rubber spring, 3-connecting rod, 4-support, 5-dispenser, the 6-screen frame, 7-screen cloth, 8-cylindrical shell, the enclosure of 9-rubber, 10-overfall, the 11-valve, the 12-grading room, 13-adds water pipe, 14-water hole plate, 15-discharge valve.

The use step of the present utility model gathers: the interior injection earlier of machine clear water is to overfall ［ 10 ］ before starting, by adding water pipe ［ 13 ］ and adding water hole plate ［ 14 ］ adding and quantitatively add water, make the interior ascending current speed of grading room meet the requirement of partition size, start dither ［ 1 ］, ore pulp feeds the garden shaft screen by dispenser ［ 5 ］, regulating mine-supplying quantity and feed ore concentration makes the concentration water of ore pulp in the shaft screen of garden greater than 40%, carried through the fines material of screen cloth ［ 7 ］ by current radially in the ore pulp and discharge from undersize discharge valve ［ 11 ］, the discharge capacity of control valve ［ 11 ］ makes overfall ［ 10 ］ have a small amount of overflow to flow out, coarse-grained material is settled down to the hydraulic classiciation chamber downwards, the row screening again of garden shaft screen is returned in the ascending current flushing that the fine grained that wherein mixes is subjected to add in the grading room again, and coarse-grained material is settled down to the bottom of hydraulic classiciation chamber ［ 12 ］ and discharges by oversize discharge valve ［ 15 ］.

The utlity model has advantages such as simple structure, screening efficiency height, the difficult obstruction of screen cloth, screen cloth long service life, be not only applicable to the wet screening of industries such as metallic ore, nonmetallic ore, chemical industry, building materials, and be applicable to laminar difficult screened materials such as graphite, mica, its index as:

1) be used for the waterpower screening of graphite concentrate: former material is greater than 0.15 millimeter grain size content 8.08%, this grain size content 85.74% in the oversize that obtains, and 300 kilograms of every square metre of compass screen surface place amount abilities/time;

2) be used for mica powder waterpower screening, former material is medium and small in 0.043 millimeter grain size content 49.29%, this grain size content 93.59% in the undersize that obtains, and screening efficiency 68.60%, 150 kilograms of every square metre of compass screen surface disposal abilities/time;

3) be used for pomegranate stone flour hydraulic screen branch, former material is medium and small gives content 97.80% in 0.043 millimeter particle, screening efficiency 82.96%, and 1500 kilograms of every square metre of compass screen surface disposal abilities/time.

Claims

1, a kind of high frequency waterpower screening machine of being made up of support (4), dispenser (5), cylindrical shell (8) rubber enclosure (9), blow-off valve (11) and parts such as (15) is characterized in that:

1) dither mechanism by dither (1), rubber spring (2), connecting rod (3), support (4), etc. parts form, dither (1) is connected with screen frame (6) by connecting rod (3), the garden shaft screen of making is made dither, connecting rod (3) links by rubber spring (2) and support (4)

2) partly the forming of vertical garden shaft screen that is long cartridge type inside and outside by dispenser (5), screen frame (6), screen cloth (7), cylindrical shell (8), rubber enclosure parts such as (9).Wherein: the screen frame (6) that is connected with connecting rod (3), screen cloth (7) are formed garden shaft screen inner core, the cylindrical shell (8) that connects together with support (4) is a urceolus, cylindrical shell (8) top has overfall (10), the bottom has valve (11), the top center of getting rid of undersize dispenser (5) is installed

3) the hydraulic classiciation chamber (12) that is connected with the garden shaft screen by rubber enclosure (9) be by garden column casing body and by the garden column casing upwards two ones of the cones of expansion be welded, wherein: the bottom of grading room (12) is horizontally installed with the water pipe (13), bottom added with holes by screw thread and is equipped with and with holes adds water plate (14) and oversize is got rid of valve (15), cone is outside and one is welded in cylindrical shell (8) bottom of garden shaft screen.

2, high frequency waterpower screening machine according to claim 1, it is characterized in that: garden shaft screen screen frame (6) is to be connect by some stainless steels garden bar and upper and lower two stainless steel garden boxing to form, and outer topped double-layer stainless steel screen cloth (7), its internal layer of screen frame (6) is the support screen in 3～5 millimeters in aperture, outerly is the screening screen cloth of aperture 0.5～0.0-3 millimeter.