CN201376074Y

CN201376074Y - Chrome sand fine selecting machine

Info

Publication number: CN201376074Y
Application number: CN200920149248U
Authority: CN
Inventors: 孙学忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2010-01-06
Anticipated expiration: 2019-04-16

Abstract

The utility model relates to a chrome sand fine selecting machine relating to the recycling equipment for fine selecting the casting chrome sand. The machine comprises a blower device, a separation sieve and a vibration mechanism; the separation sieve comprises a sieve box, a sieve screen and an air distributing chamber; one side of the sieve screen is provided with strip-shaped blanking holes; the air inlet at the bottom of the air distributing chamber is connected with an air inlet flexible pipe, and the other end thereof is connected with an air storage cabinet to a blower device. The sieve screen 8 is formed by combining and sintering multilayer stainless steel screens. The chrome sand fine selecting machine uses the sieve screen formed by sintering multilayer stainless steel screens, which is excellent in both rigidity and intensity. The height of vibration frame is adjustable in the longitudinal and transverse directions, which can realize the arbitrary inclination of sieve box. The composite eccentric wheel is used so that the amplitude can be multi-level adjustable. The stepless variable speed motor is used so that the vibrational frequency of vibration frame can be adjustable. The air storage cabinet and the air distributing chamber can cause the air pressure on sieve screen to be uniform and stable. The application of the cloth bag for filtering dust can effectively prevent the blockage of sieve screen in blast caused by dust-contained air. The machine according to the different specific gravities of materials uses the pneumatic and vibration separation principle, thereby having scientific and reasonable construction, good fine selection effect and high recovery ratio.

Description

A kind of chrome sand sorter

Technical field:

The utility model relates to foundry engieering, relates generally to foundry sand, the selected recycling equipment of the chromium sand of particularly having used.

Background technology:

When casting large-sized iron casting or steel-casting, to improve the surface quality of foundry goods, often adopt chromium sand, and be equipped with high-quality coating for preventing the liquid metals infiltration.Chromium sand is the high-quality exotic material, has very high refractoriness with its making casting mold and core, and the coefficient of expansion is little, can resist the long-time heat effect of high-temperature liquid metal, the infiltration of impedance high-temperature liquid metal, but, domestic chromite sand natural resources shortage, main cost an arm and a leg by import, be common quartz sand 20 surplus times.Therefore, general during practical application only as facing sand, how will carry out sorting with the chromium sand of crossing and the mixed sand of quartz sand, come out to utilize again with chromium sand is selected, be the important topic of a reality.

Appeared in the newspapers at present and disclosed chromium sand sorting technology, all adopt the magnetic method sorting both at home and abroad, it is the characteristics design that has weak magnetic according to chromite sand, its defective is that sorting index is low, can only roughly select, can not realize selected, its reason is that the quartz sand surface Chang Yizhan that had used dyes ferromagnetic material, thereby also had weak magnetic, cause obscuring of assorting room and chromium sand, inconvenient sorting, moreover, far and near from the distance on magnetic roller surface, also will influence sorting because of the difference of its magnetic attraction degree by its chromium sand in the magnetic roller process.

Summary of the invention:

Goal of the invention of the present utility model is, a kind of chrome sand sorter is provided, and it is to take wind-force and vibrations separating method to realize that chromium sand is selected according to the proportion different characteristics of chromium sand and quartz sand.

The foregoing invention purpose can be achieved by following technical measures, a kind of chrome sand sorter, comprise air-blast device, have percussion mechanism through airduct connection separating sieve, separating sieve, described separating sieve comprises that screen box 7, its middle part fixed grit 8, screen cloth are air compartment 9 down.Screen box 7 front ends have charge door 26, are provided with strip material-dropping hole 28 between screen cloth one side and tank wall, connect blanking funnel 33 down.Air compartment 9 bottoms have fresh air inlet and are connected with blast pipe.Described screen cloth 8 forms by the multilayer stainless (steel) wire is complex sintered.

The described blast pipe that is connected with air compartment bottom air inlet hole is a flexible hose 6, and its other end connects storage wind cabinet 5, and storage wind cabinet connects air-blast devices through wind conveying pipe 4; The percussion mechanism of described separating sieve is by actuating unit 25, driven pulley 24, is connected adjustable vibrations frame with coaxial eccentric wheel 23, the connecting rod of eccentric wheel 22 of belt pulley and the latch plate 21 that fixes with adjustable vibrations frame and storage wind cabinet 5 respectively constitutes; Described eccentric wheel 23 about two the compound formations of eccentric bushing of serving as reasons.

This chrome sand sorter adopts the existing rigidity of multilayer stainless steel sintered screen that intensity is arranged again; The lifting of adjustable vibrations frame vertical, horizontal is adjustable, can realize that screen cloth tilts arbitrarily; Running part adopts the composite eccentric wheel can make the vibrations frame amplitude of oscillation multistage adjustable; It is frequently stepless adjustable that actuating unit adopts stepless speed-change motor that the vibrations frame is shaken; Storage wind cabinet and screen box air compartment are set can make sieve end blast keep even weighing apparatus fixed; Air-blast device adopts cloth bag filter dirt that air intake is blown after filtering through screen cloth again, can effectively avoid the obstruction of dust-laden wind to screen cloth.This machine according to material proportion difference, adopt wind-force and vibrations grading principle, design route is correct, constructs scientific and reasonablely, chromium sand is selected effective, rate of recovery height.This refiner also can be used for casting the selected of usefulness zircon sand.

Description of drawings:

Accompanying drawing 1 the utility model front view

Accompanying drawing 2 the utility model rearviews (removing the air blast part)

Accompanying drawing 3 the utility model left views

Accompanying drawing 4 the utility model vertical views (removing screen box loam cake and air blast part)

The partial enlarged drawing of accompanying drawing 5 the utility model screen clothes 8

Accompanying drawing 6 the utility model classification blanking adjustable plates 29 front views

Accompanying drawing 7 the utility model classification blanking adjustable plates 29 left views

The specific embodiment:

Accompanying

drawing

1,2,3,4 provides a kind of specific embodiment of the present utility model, below in conjunction with above-mentioned accompanying drawing the structure of this refiner is done to describe in detail.This chrome sand sorter comprises air-blast device, has the percussion mechanism three parts through airduct connection separating sieve, separating sieve.Separating sieve comprises that screen box 7, its middle part are fixed with screen cloth 8, screen cloth and are air compartment 9 down, and air compartment 9 bottoms have fresh air inlet and are connected with air intake flexible pipe 6, and air intake flexible pipe 6 its other ends connect storage wind cabinet 5, and storage wind cabinet connects air-blast device through wind conveying pipe 4.Screen box 7 is overlooked and is like triangle, and its front end is established charge door 26, and charge door is established the reinforced flashboard 38 of regulating, and screen box has loam cake, and is provided with exhaust outlet 27, and tank wall is established observation window 40.Be provided with strip material-dropping hole 28 between screen cloth one side and tank wall, and have along rectangular material-dropping hole classification blanking adjustable plate 29 slidably, by regulate fixing card 42, bottom hinge 41 and with the adjustable plate 29 of its hinge ' constitute, it is fixing with screen cloth 8 through bolt 43 to regulate fixing card 42, can prolong material-dropping hole 28 and move adjusting, hinge adjustable plate 29 when mobile ' will change the angle of inclination because of 33 the shelving of top 44 of handing-over of funnel under it.It is blanking funnel 33 down material-dropping hole, and this blanking funnel is made of a plurality of funnel parallel connections, its top inner chamber UNICOM.The position of mobile classification blanking adjustable plate 29, can change near the path that flows down that is in the adjustable plate material on the screen cloth, make it to fall into different funnels, adjustable plate 29 is established two, the previous interface place that is located at quartz sand and mixed sand, a back interface place that is located at mixed sand and chromium sand, the difference of material and condition of work can cause above-mentioned interfacial mobile variation, can make sorting material fall into corresponding funnel by regulating adjustable plate 29 this moment.Also be provided with the chromium sand hopper of 3 classification funnels 34,35,36,34 for choosing under the blanking funnel 33,36 is the quartz sand funnel, and 35 is the mixed sand funnel, and mixed sand is returned charge door and carried out selected again.Screen cloth 8 is by complex sintered the forming of 3-8 layer stainless (steel) wire, see shown in the accompanying drawing 5, its top layer is wear-resisting filter screen 32, mesh 100-150 order, the 1-2 layer is main filter screen 31 under the top layer, mesh 100-250 order, and following all the other multilayers of main filter screen are for supporting time filter screen 30, mesh 8-50 order, multilayer supports time filter screen can guarantee that whole screen cloth has good rigidity and intensity.The percussion mechanism of separating sieve, the latch plate 21 that is connected adjustable vibrations frame by actuating unit 25, driven pulley 24, with coaxial eccentric wheel 23, the connecting rod of eccentric wheel 22 of belt pulley and fixes with vibrations frame and storage wind cabinet 5 respectively constitutes, 2 of latch plate one sides, totally 4.Eccentric wheel 23 constitutes by about two eccentric bushings are compound, eccentric throw divide 9 grades adjustable, to realize adjusting to the vibrations frame amplitude of oscillation.Actuating unit 25 adopts stepless speed-change motor 39, makes the frequency that shakes stepless adjustable.Adjustable vibrations frame comprises underframe 20, middle frame 15 and puts 10 on the shelf.Putting on the shelf 10 fixes with the screen box bottom surface, and the one side is hinged by hinge 11 and middle frame 15, and its opposite side is provided with the governor motion that rises and falls that is made of slotted hole frid 13, regulating handle 12 and clamping screw 14, can realize the lateral inclination of screen box.Middle frame 15 its rear end are (before a left side is in the front view, the right side is the back) be hinged by hinge 16 and underframe 20, its front end is provided with the governor motion that rises and falls that is made of slotted hole frid 18, regulating handle 17 and clamping screw 19, can realize the fore-and-aft tilt of screen box, by the above-mentioned vertical, horizontal governor motion that rises and falls, can realize any direction of screen box, arbitrarily angled inclination.Air-blast device is by sack cleaner 1, bottom air inlet mouth 2, top blower fan 37 and tremble dirt mechanism 3 and constitute, and wind enters cloth bag 1 by air inlet 2, and the gas behind cloth bag filter dirt enters storage wind cabinet 5 through wind conveying pipe 4 under fan action.

The general use that matches with the magnetic method separator of this machine is roughly selected earlier by the magnetic method separator, realizes selected by this refiner again.

This machine course of work, material present boiling, jump state, heavy chromium sand (about 4.5g/cm on vibrations, the screen cloth that tilts, agitate under the effect at the wind-force that sees through mesh ³) forward, eminence jumps the quartz sand of light specific gravity (about 2.5g/cm ³) backward, lower concentrates, between the two for mixing the abrasive band.

Claims

1, a kind of chrome sand sorter, it is characterized in that, comprise air-blast device, have percussion mechanism through airduct connection separating sieve, separating sieve, described separating sieve comprises that screen box (7), its middle part fixed grit (8), screen cloth are air compartment (9) down, screen box (7) front end has charge door (26), be provided with strip material-dropping hole (28) between screen cloth one side and tank wall, under connect blanking funnel (33), air compartment (9) bottom is provided with fresh air inlet and is connected with blast pipe, and screen cloth (8) forms by the multilayer stainless (steel) wire is complex sintered.

According to the described a kind of chrome sand sorter of claim 1, it is characterized in that 2, described multilayer stainless steel mesh (8) is the 3-8 layer, its top layer is a wear-resisting filter screen (32), mesh 100-150 order; The 1-2 layer is main filter screen (31) under the top layer, mesh 100-250 order; Following all the other multilayers of main filter screen are for supporting time filter screen (30), mesh 8-50 order.

3, according to claim 1 or 2 described a kind of chrome sand sorters, it is characterized in that, the strip material-dropping hole (28) of described screen cloth (8) one sides has along material-dropping hole classification blanking adjustable plate (29) slidably, and described funnel (33) is a plurality of funnel parallel connections, its top UNICOM; The described blast pipe that is connected with the air compartment fresh air inlet is flexible hose (6), and its other end connects storage wind cabinet (5), and storage wind cabinet connects air-blast device through wind conveying pipe (4); The percussion mechanism of described separating sieve is to be connected adjustable vibrations frame and to be constituted with adjustable vibrations frame and the latch plate (21) that fixes of storage wind cabinet (5) respectively by actuating unit (25), driven pulley (24), eccentric wheel (23), the connecting rod of eccentric wheel (22) coaxial with belt pulley.

According to the described a kind of chrome sand sorter of claim 3, it is characterized in that 4, described eccentric wheel (23) constitutes by about two eccentric bushings are compound; Described actuating unit (25) adopts stepless speed-change motor (39); Described adjustable vibrations frame comprises underframe (20), middle frame (15) and put on the shelf (10), put on the shelf (10) and screen box bottom surface fixes, the one side is hinged by hinge (11) and middle frame (15), and its opposite side is provided with the governor motion that rises and falls that is made of slotted hole frid (13), regulating handle (12) and clamping screw (14); Middle frame (15) its rear end is hinged by hinge (16) and underframe (20), and its front end is provided with the governor motion that rises and falls that is made of slotted hole frid (18), regulating handle (17) and clamping screw (19); Described classification blanking adjustable plate (29) is by regulating fixing card (42), bottom hinge (41) and constituting with the adjustable plate (29 ') of its hinge; Described air-blast device is by sack cleaner (1), bottom air inlet mouth (2), top blower fan (37) and tremble dirt mechanism (3) formation.