Ore screening device for mining

Abstract

The invention discloses an ore screening device for mine mining, and relates to the technical field of ore screening. The ore screening device comprises an alternate lifting screening mechanism and an ore boosting mechanism. The alternate lifting screening mechanism comprises a screening rack, an upper-layer fluctuation assembly, a lower-layer fluctuation assembly and a screening hinge plate. The screening rack is provided with a lifting sliding groove and is in sliding fit with the two ends of the upper-layer fluctuation assembly and the two ends of the lower-layer fluctuation assembly. A fixing shaft is fixed to the inner side face of the screening rack. A central shaft seat A and a central shaft seat B are fixed on the upper-layer fluctuation assembly and the lower-layer fluctuation assembly, and central shafts are fixed on the central shaft seat A and the central shaft seat B; the two ends of the screening hinge plate are in rotating fit and sliding fit with the center shaft and the fixing shaft correspondingly, and the alternate lifting screening mechanism is provided with an ore boosting mechanism. Under the action of the alternate lifting screening mechanism and the ore boosting mechanism, screening equipment with the size of screen holes changing in a small range is combined, and therefore the screening function is achieved; and the advantages of difficulty in blockage and crushing and crushing to a certain extent are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ore screening, and in particular relates to an ore screening device for mining. Background Art

[0002] Ore refers to a mineral aggregate from which useful components can be extracted or which has certain properties that can be utilized. It can be divided into metallic minerals and non-metallic minerals. The unit content of useful components in ore is called ore grade. Precious metal ores such as gold and platinum are expressed in grams per ton, and other ores are often expressed in percentages. Among them, because ore is mined from underground, the mined ore is mixed with useless components such as soil or sand and gravel. At the same time, ore debris is inevitably produced during mining. The mining and screening process of ore is mostly a relatively slow process. It is necessary to clean the mixed soil first, and then the ore is sliced ​​and tested.

[0003] At present, most ore screening equipment uses drum screens or vibrating screens. This type of equipment is the simplest and most convenient for ore screening, but it not only has low screening efficiency, but also has problems such as easy clogging. In addition, most drum screens need to be loaded and then screened before replenishing materials during screening, so that each round of screening will have low screening efficiency if sufficient time is used; if the screening efficiency is high due to less time, the screening will be insufficient. In view of the above-mentioned problems of poor screening efficiency and easy clogging, the present invention designs an ore screening device for mining. Summary of the invention

[0004] The object of the present invention is to provide an ore screening device for mining. By alternating the lifting and lowering of the screening mechanism and the ore boosting mechanism, a screening device with a sieve hole size that can be changed in a small range is combined, thereby screening ores of a certain size within a certain range; achieving the effect of not being easy to be blocked and also having a certain degree of crushing and crushing, thereby solving the above-mentioned problems of poor screening efficiency and easy clogging.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention discloses an ore screening device for mining, comprising an alternating lifting and screening mechanism and an ore boosting mechanism; the alternating lifting and screening mechanism comprises a screening frame, an upper wave assembly, a lower wave assembly and a screening hinge plate; lifting slide grooves are arranged at both ends of the screening frame, and both ends of the upper wave assembly and the lower wave assembly are slidably matched with the two end portions of the screening frame; a plurality of fixed shafts are fixedly installed between the opposite inner side surfaces of the screening frame; a plurality of groups of central shaft seats A and central shaft seats B are respectively fixedly installed between the upper wave assembly and the lower wave assembly, and the central shaft seats A and the central shaft seats B are alternately arranged, and the inner side surfaces of each group of the central shaft seats A and each group of the central shaft seats B are fixed with a central shaft; a central hole and a slideway are respectively arranged at both ends of the screening hinge plate; the inner wall of the central hole of each group of the screening hinge plates is rotatably matched with the peripheral side surface of the central shaft, and the inner side wall of the slideway of each group of the screening hinge plates is slidably matched with the peripheral side surface of the fixed shaft; the alternating lifting and screening mechanism is assembled above the screening hinge plate There is an ore boosting mechanism for pushing the main ore; wherein the ore boosting mechanism is used to push the ore on the alternate lifting and screening mechanism, so that the mined ore passes through the alternate lifting and screening mechanism and undergoes screening operations; the upper wave assembly and the lower wave assembly perform alternate vertical sliding operations up and down, and the screening hinge plates, central axis and fixed axis thereon are combined into a screening device whose sieve hole size can vary in a small range; at the same time, since the angle between each group of screening hinge plates will also change, the ore is not easy to get blocked; that is, since the angle of each group of screening hinge plates not only changes at all times, but also the position of the screening hinge plates and the central axis relative to the fixed axis also changes at all times, if the ore is stuck here, the ore may be crushed or it may be screened and dropped when the gap becomes larger; thus, the function of not being easy to get blocked is achieved; it also has the effect of crushing and crushing to a certain extent; the ore boosting mechanism roughly controls the moving speed of the ore, thereby ensuring the screening efficiency; the present invention is suitable for the screening function of relatively large ores.

[0007] As a preferred technical solution of the present invention, the screening rack is an inclined H-shaped structure when viewed from the side, and the screening rack includes mounting columns and beams; mounting columns are fixed to both ends of the two groups of beams, and the lifting slide is located on the inner side surface of the top of each mounting column; the fixed axis is located on an opposite inner side surface of the two groups of beams.

[0008] As a preferred technical solution of the present invention, an inclined base is fixedly installed at the bottom of the screening frame, and an inclined mounting surface is provided on the top surface of the inclined base; the bottom of the mounting column is fixedly installed on the inclined mounting surface; the alternating lifting and screening mechanism is in a slightly inclined state as a whole, which is beneficial for the ore on the alternating lifting and screening mechanism to realize the pushing and screening functions under the joint action of multiple forces such as tilting, pushing, and gravity, and its inclined state is beneficial to the smooth passage of the ore and the passing efficiency.

[0009] As a preferred technical solution of the present invention, the fixed shaft on the screening frame includes two layers, the fixed shaft located on the upper layer is the fixed shaft A, and the fixed shaft located on the lower layer is the fixed shaft B; the fixed shaft A is slidably matched with the screening hinge plate on the central shaft seat A; the fixed shaft B is slidably matched with the screening hinge plate on the central shaft seat B.

[0010] As a preferred technical solution of the present invention, the upper wave assembly and the lower wave assembly are U-shaped structures when viewed from a top perspective, and guide sliding blocks are provided at both ends of the back side of the upper wave assembly and the lower wave assembly; the guide sliding blocks are slidably matched with the lifting slide grooves.

[0011] As a preferred technical solution of the present invention, the ore boosting mechanism includes a driving motor, a chain, a boosting rod and a mounting frame; sprockets are installed at both ends of the mounting frame, chains are mounted on the sprockets, a boosting rod is installed between the two groups of chains, the output shaft of the driving motor is transmission-connected with the sprocket, and the driving motor controls the two groups of chains to run synchronously.

[0012] As a preferred technical solution of the present invention, a mounting bracket is fixedly mounted on a relatively inner side surface of the screening frame; the mounting bracket is fixedly mounted to the bottom of the mounting frame.

[0013] As a preferred technical solution of the present invention, the alternating lifting and screening mechanism also includes a servo motor; the middle parts of the upper and lower wave assemblies are respectively hinged with power rods A and B; the power rods A and B; both ends of the servo motor are fixedly installed with rotating wheels, and the outer sides of the two rotating wheels are respectively equipped with rotating shafts A and B at non-center positions; the rotating shafts A and B are respectively hinged with the ends of the power rods A and B; the servo motor provides lifting power for the two groups of upper and lower wave assemblies, and performs synchronous control.

[0014] The present invention has the following beneficial effects:

[0015] The present invention combines a screening device with a screen hole size that can vary in a small range through the action of alternating lifting and lowering the screening mechanism and the ore boosting mechanism, thereby screening ores of a certain size within a certain range; it has the advantages of being not easy to be blocked and also having the advantages of crushing and crushing the ore to a certain extent.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of an ore screening device for mining of the present invention;

[0019] Figure 2 A top view of the structure of an ore screening device for mining according to the present invention;

[0020] Figure 3 It is a schematic structural diagram of an ore screening device for mining in a side view according to the present invention;

[0021] Figure 4 It is a structural schematic diagram of the alternating lifting and screening mechanism in lifting and lowering fluctuation state 1;

[0022] Figure 5 It is a structural schematic diagram of the alternating lifting and screening mechanism in the lifting and lowering fluctuation state 2;

[0023] Figure 6 It is a top view of the structure of the alternating lifting and lowering screening mechanism;

[0024] Figure 7 It is a structural schematic diagram of the screening rack;

[0025] Figure 8 It is a schematic diagram of the structure of the upper wave component;

[0026] Fig. 9 This is a schematic diagram of the structure of the ore booster mechanism;

[0027] Fig.10 It is a structural schematic diagram of the screening hinge plate;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-alternating lifting and screening mechanism, 2-ore boosting mechanism, 3-tilted base, 101-screening frame, 102-upper wave assembly, 103-lower wave assembly, 104-screening hinge plate, 105-lifting slide, 106-fixed shaft, 107-center shaft seat A, 108-center shaft seat B, 109-center shaft, 110-center hole, 111-slideway, 112-guide slide block, 113-mounting support Frame, 114-servo motor, 115-power rod A, 116-power rod B, 117-rotating wheel, 118-rotating axis A, 201-driving motor, 202-chain, 203-boost rod, 204-mounting frame, 205-sprocket, 301-inclined mounting surface, 302-ore feeding plate, 1011-mounting column, 1012-beam, 1061-fixed axis A, 1062-fixed axis B. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-10As shown, the present invention is an ore screening device for mining, comprising an alternating lifting screening mechanism 1 and an ore boosting mechanism 2; the alternating lifting screening mechanism 1 comprises a screening frame 101, an upper wave assembly 102, a lower wave assembly 103 and a screening hinge plate 104; lifting slides 105 are arranged at both ends of the screening frame 101, and both ends of the upper wave assembly 102 and the lower wave assembly 103 are slidably matched with both ends of the screening frame 101; a plurality of fixed shafts 106 are fixedly installed between opposite inner side surfaces of the screening frame 101; the upper wave assembly 102 and the lower wave assembly 103 are arranged to slide and match ... Several groups of center shaft seats A107 and center shaft seats B108 are fixedly installed between the wave components 103, and the center shaft seats A107 and the center shaft seats B108 are alternately arranged. The inner side surfaces of each group of center shaft seats A107 and each group of center shaft seats B108 are fixed with center shafts 109; the two ends of the screening hinge plate 104 are respectively provided with center holes 110 and slideways 111; the inner wall of the center hole 110 of each group of screening hinge plates 104 is rotationally matched with the side surface of the center shaft 109, and the inner wall of the slideway 111 of each group of screening hinge plates 104 is slidingly matched with the side surface of the fixed shaft 106 The alternating lifting and screening mechanism 1 is equipped with an ore boosting mechanism 2 for pushing the main ore above the screening hinge plate 104; wherein the ore boosting mechanism 2 is used to push the ore on the alternating lifting and screening mechanism 1, so that the mined ore passes through the alternating lifting and screening mechanism 1 and is screened; the upper wave assembly 102 and the lower wave assembly 103 perform alternating vertical sliding operations up and down, and the screening hinge plate 104, the central shaft 109, and the fixed shaft 106 thereon are combined into a screening device with a small range of sieve hole size changes; at the same time, since each group of screening hinge plates 104 The angle between them will also change, making it difficult for the ore to get stuck; that is, since the angle of each set of screening hinge plates 104 not only changes at all times, but also the position of the screening hinge plates 104 and the central axis 109 relative to the fixed axis 106 also changes at all times, if the ore is stuck here, the ore may be crushed or it may be screened out when the gap becomes larger; therefore, the function of not being easy to get stuck is achieved; it also has the effect of crushing and crushing to a certain extent; the ore booster mechanism 2 roughly controls the moving speed of the ore, thereby ensuring the screening efficiency; the present invention is suitable for the screening function of relatively large ores.

[0032] Among them Figure 1 and Figure 7As shown, the screening frame 101 is an H-shaped structure when it is in a side view, and the screening frame 101 includes mounting columns 1011 and beams 1012; mounting columns 1011 are fixed at both ends of the two groups of beams 1012, and the lifting slide 105 is located on the inner side of the top of each mounting column 1011; the fixed shaft 106 is located on an opposite inner side of the two groups of beams 1012; an inclined base 3 is fixedly installed at the bottom of the screening frame 101, and an inclined mounting surface 301 is provided on the top surface of the inclined base 3; the bottom of the mounting column 1011 is fixedly installed on the inclined mounting surface 301; an ore feeding plate 302 is fixedly installed on the front side of the alternating lifting and screening mechanism 1; the alternating lifting and screening mechanism 1 is in a slightly inclined state as a whole, which is conducive to the ore on the alternating lifting and screening mechanism 1 to realize the functions of pushing and screening under the joint action of multiple forces such as tilting, pushing, gravity, etc., and its inclined state is conducive to the smooth passage of the ore and the passing efficiency.

[0033] Among them Figure 7-8 As shown, the fixed axis 106 on the screening frame 101 includes two layers, the fixed axis 106 located on the upper layer is the fixed axis A1061, and the fixed axis 106 located on the lower layer is the fixed axis B1062; the fixed axis A1061 is slidably matched with the screening hinge plate 104 on the central axis seat A107; the fixed axis B1062 is slidably matched with the screening hinge plate 104 on the central axis seat B108; the upper wave assembly 102 and the lower wave assembly 103 are U-shaped structures when viewed from a top perspective, and guide slide blocks 112 are provided at both ends of the back of the upper wave assembly 102 and the lower wave assembly 103; the guide slide blocks 112 are slidably matched with the lifting slide 105.

[0034] Among them Fig. 9 As shown, the ore boosting mechanism 2 includes a driving motor 201, a chain 202, a boosting rod 203 and a mounting frame 204; sprockets 205 are installed at both ends of the mounting frame 204, and the chains 202 are mounted on the sprockets 205. A boosting rod 203 is installed between the two groups of chains 202. The output shaft of the driving motor 201 is connected to the sprocket 205 for transmission, and the driving motor 201 controls the two groups of chains 202 to run synchronously; a mounting bracket 113 is also fixedly installed on a relative inner side surface of the screening frame 101; the mounting bracket 113 is fixedly installed on the bottom of the mounting frame 204.

[0035] Among them Figure 1 and Figure 3As shown, the alternating lifting and screening mechanism 1 also includes a servo motor 114; the middle parts of the upper wave assembly 102 and the lower wave assembly 103 are respectively hinged with power rod A115 and power rod B116; power rod A115, power rod B116; both ends of the servo motor 114 are fixedly installed with rotating wheels 117, and the outer sides of the two rotating wheels 117 are respectively equipped with rotating shafts A118 and rotating shafts B at non-center positions; rotating shafts A118 and rotating shafts B are respectively hinged with the ends of power rods A115 and power rods B116; the servo motor 114 provides lifting power for the two groups of upper wave assemblies 102 and lower wave assemblies 103, and performs synchronous control.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation 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 in a suitable manner.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An ore screening device for mining, characterized in that: It comprises an alternating lifting and screening mechanism (1) and an ore boosting mechanism (2); The alternating lifting and screening mechanism (1) comprises a screening frame (101), an upper wave component (102), a lower wave component (103) and a screening hinge plate (104); Both ends of the screening frame (101) are provided with lifting slides (105), and both ends of the upper wave assembly (102) and the lower wave assembly (103) are slidably matched with both ends of the screening frame (101); a plurality of fixed shafts (106) are fixedly installed between opposite inner side surfaces of the screening frame (101); A plurality of groups of central axis seats A (107) and central axis seats B (108) are respectively fixedly installed between the upper wave assembly (102) and the lower wave assembly (103), the central axis seats A (107) and the central axis seats B (108) are alternately arranged, and a central axis (109) is fixed on the inner side surface of each group of the central axis seats A (107) and each group of the central axis seats B (108); The two ends of the screening hinge plate (104) are respectively provided with a central hole (110) and a slideway (111); the inner wall of the central hole (110) of each group of the screening hinge plates (104) is rotationally matched with the peripheral side surface of the central shaft (109), and the inner wall of the slideway (111) of each group of the screening hinge plates (104) is slidingly matched with the peripheral side surface of the fixed shaft (106); The alternating lifting and screening mechanism (1) is equipped with an ore boosting mechanism (2) for pushing the main ore above the screening hinge plate (104).

2. The ore screening device for mining according to claim 1, characterized in that: The screening frame (101) is an H-shaped structure when viewed from the side, and comprises mounting columns (1011) and crossbeams (1012); mounting columns (1011) are fixed to both ends of the two groups of crossbeams (1012); the lifting chute (105) is located on the inner side surface of the top of each mounting column (1011); and the fixed shaft (106) is located on an opposite inner side surface of the two groups of crossbeams (1012).

3. The ore screening device for mining according to claim 2, characterized in that: The bottom of the screening frame (101) is fixedly mounted with an inclined base (3), and the top surface of the inclined base (3) is provided with an inclined mounting surface (301); the bottom of the mounting column (1011) is fixedly mounted on the inclined mounting surface (301).

4. The ore screening device for mining according to claim 1, characterized in that: The fixed shaft (106) on the screening frame (101) comprises two layers, the fixed shaft (106) located at the upper layer is the fixed shaft A (1061), and the fixed shaft (106) located at the lower layer is the fixed shaft B (1062); the fixed shaft A (1061) is in sliding cooperation with the screening hinge plate (104) on the central shaft seat A (107); and the fixed shaft B (1062) is in sliding cooperation with the screening hinge plate (104) on the central shaft seat B (108).

5. The ore screening device for mining according to claim 1, characterized in that: The upper wave assembly (102) and the lower wave assembly (103) are U-shaped structures when viewed from a top view. Guide slide blocks (112) are provided at both ends of the back of the upper wave assembly (102) and the lower wave assembly (103); the guide slide blocks (112) are in sliding cooperation with the lifting slide groove (105).

6. The ore screening device for mining according to claim 1, characterized in that: The ore boosting mechanism (2) comprises a driving motor (201), a chain (202), a boosting rod (203) and a mounting frame (204); sprockets (205) are mounted on both ends of the mounting frame (204); the chains (202) are mounted on the sprockets (205); a boosting rod (203) is mounted between two groups of the chains (202); the output shaft of the driving motor (201) is transmission-connected to the sprockets (205); and the driving motor (201) controls the two groups of chains (202) to run synchronously.

7. The ore screening device for mining according to claim 6, characterized in that: A mounting bracket (113) is also fixedly mounted on an opposite inner side surface of the screening frame (101); the mounting bracket (113) is fixedly mounted on the bottom of the mounting frame (204).

8. The ore screening device for mining according to claim 1, characterized in that: The alternating lifting and screening mechanism (1) also includes a servo motor (114); the middle parts of the upper wave assembly (102) and the lower wave assembly (103) are respectively hinged with a power rod A (115) and a power rod B (116); the power rod A (115) and the power rod B (116); both ends of the servo motor (114) are fixedly mounted with rotating wheels (117), and the outer sides of the two rotating wheels (117) are respectively equipped with a rotating shaft A (118) and a rotating shaft B at non-central positions; the rotating shaft A (118) and the rotating shaft B are respectively hinged with the ends of the power rod A (115) and the power rod B (116).

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