Steel ball classifying and screening machine

Abstract

The utility model relates to the technical field of coal mills, and particularly discloses a steel ball classifying and screening machine which comprises a base fixing frame. A plurality of floating shafts are inserted into holes in the base fixing frame in a sliding manner; the upper end of the floating shaft is slidably sleeved with a plurality of supporting frames. An inclined panel is in pin connection between the supporting frames; steel balls to be screened roll down from the upper end of the inclined panel through a conveying belt or other conveying mechanisms and then are screened through a plurality of groups of equidistant screening strips with different distances, the steel balls with small diameters are screened out firstly, the steel balls with medium and small diameters are screened out secondly, and then the steel balls with medium and large diameters are screened out; and finally, the large-diameter steel balls fall off through the equal-distance screening strips to be collected, so that a large number of steel balls can be smoothly screened in four size ranges, and the steel balls in different diameter ranges can be repeatedly utilized. The steel ball screening machine solves the problem that an existing screening machine cannot screen out steel balls in more size ranges for accurate recycling.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mill technical field, concretely is a kind of steel ball classification screening machine. BACKGROUND

[0002] Coal mill is important equipment for processing raw coal into coal powder in thermal power plant, and the working principle of coal mill is mainly to crush large raw coal into small particles by mechanical force, which is usually accompanied by drying action to reduce the moisture content of coal;Coal mill is equipped with grinding roller or steel ball and other grinding medium, which rotates under the driving of motor, and uses friction and impact force to crush coal;The steel ball of conventional coal mill is installed according to the ratio of 1:1:1 according to three specifications such as Φ40-Φ50-Φ60, with the operation of coal mill, the small ball in coal mill will be more and more and cannot be discharged, which not only increases the current of equipment, but also reduces the output of coal mill equipment.

[0003] The Chinese invention patent with publication number CN102921624B discloses a kind of steel ball automatic screening machine on May 25, 2016, including conveying device, screening device and dust removal device, the blanking hopper at the end of conveying device is fixedly connected with the feed hopper of screening device, the top of screening device is fixedly connected with the dust collection cover of dust removal device, the outer side of conveying device and screening device is all installed with sealing cover, the conveying device includes at least one belt conveyor.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: the screening machine of prior art can only roughly divide the worn steel balls into two size ranges, so it cannot accurately screen the steel balls, resulting in the need for reclassification when reusing different worn steel balls, thus reducing the classification efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical problem that the screening machine of prior art can only roughly divide the worn steel balls into two size ranges, so it cannot accurately screen the steel balls, resulting in the need for reclassification when reusing different worn steel balls, thus reducing the classification efficiency, and provides a kind of steel ball classification screening machine.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of steel ball classifying screening machine, including base fixed frame;The base fixed frame is slidably inserted with multiple floating shafts on aperture;Multiple support frames are slidably connected on the upper end of the floating shaft;Pitched panel is connected with pin between the support frame;Multiple through grooves are formed in the pitched panel;Multiple sets of equidistance screening strips are fixedly connected with the through groove on the pitched panel;Vibration motor is fixedly connected on the side surface of the pitched panel.

[0008] Further, the pitched panel is detachably fixed with a loading hopper corresponding to the equidistance screening strips.

[0009] Further, a discharge hopper is detachably connected to the support frame corresponding to the through groove.

[0010] Further, an elastic member is connected to the floating shaft; a first fastener is threadedly connected to the base fixed frame corresponding to the floating shaft; and a second fastener is threadedly connected to the support frame corresponding to the floating shaft.

[0011] Further, a material collecting container is inserted into the base fixed frame; multiple universal wheels are fixedly connected to the lower surface of the material collecting container; a forklift groove is symmetrically formed in the lower surface of the material collecting container; and a handle is symmetrically fixedly connected to the outer surface of the material collecting container.

[0012] Further, a moving container is placed on the side surface of the base fixed frame corresponding to the position where the steel balls fall.

[0013] The steel ball classifying screening machine provided by the utility model has the following advantages:

[0014] 1. The steel balls to be screened are rolled from the upper end of the pitched panel through the conveying belt or other conveying mechanism, and then screened through multiple sets of equidistance screening strips with different distances. First, small-diameter steel balls are screened out, then medium-small-diameter steel balls are screened out, then medium-large-diameter steel balls are screened out, and finally large-diameter steel balls are screened out and collected through the equidistance screening strips. At the same time, the vibration motor is powered on to move and drive the pitched panel to vibrate when the steel balls move, so that the steel balls will not be stacked on the equidistance screening strips to cause blockage, and thus a large number of steel balls can be smoothly screened into four size ranges, so that steel balls with different diameter ranges can be reused, solving the problem that the existing screening machine cannot screen more size ranges of steel balls for accurate reuse.

[0015] 2. The utility model discloses a first fastener and second fastener are rotated to the distance that can be fixed floating axle coincides in base fixed frame to realize the support frame and floating axle of same structure, can carry out inclined elastic support fixed with inclined plane board, can utilize gravity to make steel ball can move on inclined plane board through equidistant screening strip and carry out screening of different interval size in different size range of steel ball, make not need to adopt power structure and drive steel ball to move, make more energy -conserving, can through the elastic deformation of elastic member to absorb the kinetic energy of steel ball when a large amount of steel ball is poured into loading hopper, can effectively protect equidistant screening strip, reduce noise simultaneously, prolong the service life of equipment, solve the problem that the existing screening machine cannot screen steel ball into multiple size range. BRIEF DESCRIPTION OF DRAWINGS

[0016] The specific embodiments of the utility model will be further described in detail below in combination with the drawings.

[0017] Fig. 1 It is the first axis measurement structure schematic diagram of the utility model;

[0018] Fig. 2 It is the second axis measurement structure schematic diagram of the utility model;

[0019] Fig. 3 It is the front view structure schematic diagram of the utility model.

[0020] Mark explanation in drawing: 1, base fixed frame, 2, floating axle, 3, support frame, 4, elastic member, 5, inclined plane board, 6, unloading hopper, 7, through groove, 8, equidistant screening strip, 9, first fastener, 10, second fastener, 11, material receiving container, 12, forklift groove, 13, handle, 14, universal wheel, 15, vibration motor, 16, mobile container, 17, loading hopper. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are merely intended to explain the present utility model, and are not intended to limit the present utility model.

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] It should be noted that all directional indications (such as up-down-left-right-front-rear...) in the embodiments of the present application are only used to explain the relative position relationship between the components and the movement condition in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly, and the connection can be direct connection or indirect connection.

[0024] Please refer to Figs. 1-3 As shown in the drawings, a steel ball classification and screening machine, including base fixed frame 1, the base fixed frame 1 is opened and slidably inserted with a plurality of floating shafts 2, the upper end of the floating shaft 2 is slidably sleeved with a plurality of support frames 3, the inclined plane plate 5 is connected with the inclined plane plate 5 between the support frame 3, the inclined plane plate 5 is provided with a plurality of through grooves 7, the inclined plane plate 5 is correspondingly provided with a plurality of groups of equidistant screening strips 8, the side surface of the inclined plane plate 5 is fixedly connected with a vibration motor 15, in working, the steel balls to be screened are rolled from the upper end of the inclined plane plate 5 through the conveying belt or other conveying mechanism, then screened through a plurality of groups of equidistant screening strips 8 with different distances, first, small-diameter steel balls are screened out, second, small-to-medium-diameter steel balls are screened out, then medium-to-large-diameter steel balls are screened out, finally, large-diameter steel balls are collected through the equidistant screening strips 8, at the same time, the vibration motor 15 is energized to move to drive the inclined plane plate 5 to vibrate when the steel balls move, so that the steel balls do not accumulate on the equidistant screening strips 8 to cause blockage, so that the steel balls can be smoothly screened in four size ranges, so that the steel balls in different diameter ranges can be reused, and the problem that the existing screening machine cannot screen more size ranges of steel balls for accurate reuse is solved.

[0025] The inclined plane plate 5 is detachably fixedly connected with a loading hopper 17 corresponding to the equidistant screening strip 8, in working, a large number of steel balls can be collected through the loading hopper 17 for one-time screening, so that the screening efficiency is further improved, and the problem of low transfer efficiency of a large number of steel balls in the prior art is solved.

[0026] The support frame 3 is detachably sleeved with a discharging hopper 6 corresponding to the through groove 7, in working, the steel balls falling in a large area can be collected by the discharging hopper 6 to become a small area falling state, so that the steel balls can be accurately dropped into a small-diameter container, so that the steel balls can be collected more conveniently and efficiently, and the problem that the existing screening machine cannot conveniently and centrally collect the steel balls is solved.

[0027] The floating shaft 2 is sleeved with an elastic member 4; the base fixing frame 1 is screw-connected with a first fastener 9 corresponding to the opening of the floating shaft 2; the support frame 3 is screw-connected with a second fastener 10 corresponding to the opening of the floating shaft 2; during operation, the first fastener 9 and the second fastener 10 are rotated to fix the distance between the floating shaft 2 and the base fixing frame 1, so that the support frame 3 and the floating shaft 2 of the same structure can be used to elastically support and fix the inclined plane 5, so that the steel balls can be moved on the inclined plane 5 by the gravity and screened by the equidistant screening strips 8 according to different intervals to obtain steel balls in different size ranges, so that the steel balls do not need to be driven to move by a power structure, which is more energy-saving, and when a large number of steel balls are poured into the loading hopper 17, the kinetic energy of the steel balls can be absorbed by the elastic deformation of the elastic member 4, so that the equidistant screening strips 8 can be effectively protected, the noise is reduced, the service life of the equipment is prolonged, and the problem that the existing screening machine cannot screen the steel balls into multiple size ranges is solved.

[0028] The base fixing frame 1 is inserted with a material collecting container 11; a plurality of universal wheels 14 are fixedly connected to the lower surface of the material collecting container 11; a forklift groove 12 is symmetrically formed in the lower surface of the material collecting container 11; handles 13 are symmetrically fixedly connected to the outer surface of the material collecting container 11; during operation, the universal wheels 14 can move the material collecting container 11 on the plane, so that the material collecting container 11 can be moved to the corresponding position for repeated use as needed, and then the forklift groove 12 can be used to transfer the material collecting container 11 upward and downward after the material collecting container 11 is filled with steel balls, so that the height of the material collecting container 11 can be quickly changed for repeated use, and the problem that the existing container cannot be moved by a forklift and rolled on a plane is solved.

[0029] The side surface of the base fixing frame 1 is provided with a moving container 16 corresponding to the position where the steel balls fall; during operation, the moving container 16 can receive the steel balls with the maximum diameter falling from the inclined plane 5, so that the steel balls with the maximum diameter can be collected and reused later.

[0030] Adopt above scheme, the utility model discloses in use, through the loading hopper 17 collection a large number of steel ball to be screened to carry out screening, the steel ball to be screened rolls down from the upper end of the inclined plane plate 5, then carries out screening through multiple groups of equidistance screening strip 8 of different distance, first, screen out small diameter steel ball, second, screen out small and medium diameter steel ball, then screen out medium and large diameter steel ball, finally, large diameter steel ball falls through equidistance screening strip 8 and is collected, simultaneously, when the steel ball moves, vibration motor 15 energization motion drives the inclined plane plate 5 to vibrate, thereby make steel ball not be accumulated on equidistance screening strip 8 and cause the blockage, thereby make can smoothly carry out four size range screening to a large number of steel ball, thereby can carry out repeated utilization to the steel ball of different diameter range, solve the problem that the existing screening machine cannot screen more size range steel ball and carry out accurate repeated utilization, three equidistance screening strips 8 between respectively 33 millimeters, 43 millimeters and 53 millimeters, thereby can screen out respectively 33 millimeters below steel ball, 33 millimeters to 43 millimeters between steel ball, 43 millimeters to 53 millimeters between steel ball and greater than 53 millimeters above steel ball, after such screening ball can be collected and weighed respectively, conveniently re-proportioning and loading to steel ball, to improve work efficiency and improve equipment output.

[0031] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples as appropriate.

[0032] The basic principles, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A steel ball sorting and screening machine, characterized in that; The invention comprises a base fixing frame (1); a plurality of floating shafts (2) are slidably inserted into holes on the base fixing frame (1); a plurality of support frames (3) are slidably sleeved on the upper ends of the floating shafts (2); inclined panels (5) are pin-connected between the support frames (3); a plurality of through slots (7) are opened on the inclined panels (5); a plurality of groups of equidistant screening strips (8) are fixedly connected to the corresponding through slots (7) on the inclined panels (5); and a vibration motor (15) is fixedly connected to the side of the inclined panels (5).

2. The steel ball sorting and screening machine according to claim 1, characterized in that: A charging hopper (17) is detachably fixedly connected to the inclined panel (5) corresponding to the equidistant screening strips (8).

3. The steel ball sorting and screening machine according to claim 2, characterized in that: The support frame (3) is detachably sleeved with a lower hopper (6) corresponding to a slot (7).

4. The steel ball sorting and screening machine according to claim 3, characterized in that: An elastic member (4) is sleeved on the floating shaft (2); a first fastener (9) is threadedly connected to an opening corresponding to the floating shaft (2) on the base fixing frame (1); and a second fastener (10) is threadedly connected to an opening corresponding to the floating shaft (2) on the support frame (3).

5. The steel ball sorting and screening machine according to claim 4, characterized in that: A material receiving container (11) is inserted into the base fixing frame (1); a plurality of universal wheels (14) are fixedly connected to the lower surface of the material receiving container (11); forklift slots (12) are symmetrically opened on the lower surface of the material receiving container (11); and a handle (13) is symmetrically fixedly connected to the outer surface of the material receiving container (11).

6. The steel ball sorting and screening machine according to claim 5, characterized in that: A movable container (16) is placed on the side of the base fixing frame (1) corresponding to the falling position of the steel ball.

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