Simple screening machine suitable for on-site detection of granularity of coarse-fraction ore

Abstract

The simple screening machine comprises a machine frame, a motor is arranged at the top of the machine frame, a rotating wheel is arranged on the side portion of the motor, the rotating wheel and the motor are connected through a connecting shaft, a first connecting rod is arranged on the side portion of the rotating wheel, and the rotating wheel and the first connecting rod are connected through a second connecting rod. A push-pull frame is arranged at the end of the first connecting rod, the push-pull frame and the first connecting rod are connected through a movable shaft sleeve, limiting sliding rails which are symmetrically arranged are arranged on the inner wall of the push-pull frame, a movable shaft is arranged between the two limiting sliding rails, the two limiting sliding rails and the movable shaft are connected through ball bearings, and a screen fixing frame is arranged at the top of the movable shaft. The screen fixing frame is provided with a plurality of layers of screens, and the screens are connected through fixing bolts. The device is used for on-site detection of the granularity of the coarse-fraction ore in an ore crushing system of an ore dressing plant, errors caused by manual operation are avoided, and the screening efficiency and the detection accuracy are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mineral processing machinery and equipment, and relates to a simple screening machine suitable for on-site detection of coarse-grained ore particle size. Background Art

[0002] In the process of mineral processing, controlling the ore crushing particle size and particle size composition of the crushing system is an important indicator that affects subsequent production. Large crushing particle size will easily lead to a large proportion of grinding energy consumption in the subsequent grinding process, and the grinding will be more difficult and take a long time. It is difficult to grind coarse particles of ore, which is not conducive to subsequent flotation operations; small crushing particle size will lead to over-grinding of ore in the grinding stage, and it will also cause fine particles of ore to be unable to float effectively, reducing the recovery rate of useful minerals; therefore, in the production process, it is an indispensable link to detect the ore particle size of the crushing system of the beneficiation plant and analyze the composition of each particle size.

[0003] The traditional screening process is manually operated, and a large amount of ore needs to be sampled and screened from the belt. If the sampling is too small, accurate data cannot be obtained, so the labor intensity of the position is relatively high. The traditional screening method: two people are required to lift the screens of various particle sizes and shake them continuously to classify the mineral particles, which is time-consuming and laborious. In addition, the dust raised during the screening and detection process is extremely harmful to the human body, and the accuracy and consistency of the detection are also difficult to guarantee. Therefore, it is necessary to design a simple screening machine with a simple structure and easy operation to solve the technical problems of the existing mineral processing plant production process. Utility Model Content

[0004] The purpose of the utility model is to provide a simple screening machine suitable for on-site detection of coarse-grained ore particle size in response to the problems existing in the prior art, thereby solving the problem of dust harming the human body during the traditional screening process. In addition, the manual operation of the traditional screening detection process is not only inefficient, but also difficult to ensure the accuracy and consistency of the detection.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A simple screening machine suitable for on-site detection of the particle size of coarse-grained ore comprises a frame, a motor is provided on the top of the frame, a rotating wheel is provided on the side of the motor, and the two are connected by a connecting shaft, a first connecting rod is provided on the side of the rotating wheel, and the two are connected by a second connecting rod, a push-pull frame is provided at the end of the first connecting rod, and the two are connected by a movable shaft sleeve, a symmetrically arranged limiting slide rails are provided on the inner wall of the push-pull frame, a movable shaft is provided between the two limiting slide rails, and the three are connected by a ball bearing, a screen fixing frame is provided on the top of the movable shaft, the screen fixing frame is provided with a plurality of layers of screens, and the two are connected by fixing bolts.

[0007] Furthermore, fixing screw holes are provided at the four corners of the screen, which are connected with fixing bolts.

[0008] Furthermore, an anti-spill cover is provided above the screen.

[0009] Furthermore, a ore receiving tray is provided below the screen.

[0010] The beneficial effects of the utility model are:

[0011] The utility model can realize efficient screening and particle size detection of coarse-grained ore at the production site, improve screening efficiency and detection accuracy, and reduce job labor intensity. At the same time, the utility model has the advantages of simple structure, easy operation, easy manufacture and maintenance, and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 2 It is a side view structural schematic diagram of the utility model;

[0014] In the figure, 1-frame, 2-motor, 3-connecting shaft, 4-rotating wheel, 5-second connecting rod, 6-first connecting rod, 7-screen fixing frame, 8-anti-spill cover, 9-screen, 10-fixing bolt, 11-ball bearing, 12-ore receiving plate, 13-limiting slide rail, 14-push-pull frame, 15-movable shaft sleeve, 16-fixing screw hole, 17-movable shaft. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.

[0016] like Figure 1 and 2 As shown, a simple screening machine suitable for on-site detection of coarse-grained ore particle size includes a frame 1, a motor 2 is provided on the top of the frame 1, a rotating wheel 4 is provided on the side of the motor 2, and the two are connected by a connecting shaft 3, and the rotation of the motor 2 can drive the rotating wheel 4 to rotate; a first connecting rod 6 is provided on the side of the rotating wheel 4, and the two are connected by a second connecting rod 5, and a push-pull frame 14 is provided at the end of the first connecting rod 6, and the two are connected by a movable shaft sleeve 15.

[0017] The inner wall of the push-pull frame 14 is provided with symmetrically arranged limit slide rails 13, a movable shaft 17 is provided between the two limit slide rails 13, and the three are connected by a ball bearing 11, a screen fixing frame 7 is provided on the top of the movable shaft 17, the screen fixing frame 7 is provided with several layers of screens 9, the four corners of the screen 9 are provided with fixing screw holes 16, and the two are connected by fixing bolts 10, a spill-proof cover 8 is provided above the screen 9, and a ore receiving plate 12 is provided below the screen 9.

[0018] The operation process of the utility model is as follows: a number of screens 9 of the required particle size are installed in place to form a screen group, the ore to be screened is fed into the uppermost screen 9, the anti-spill cover 8 is installed, the ore receiving plate 12 is placed, the motor 2 is started, the motor 2 drives the rotating wheel 4 to rotate, and the movable shaft 17 is made to perform horizontal reciprocating motion in the limiting slide rail 13 through the first connecting rod 6 and the push-pull frame 14. During the horizontal motion, the screen group is tilted and swung, and the ore keeps moving on the screen 9 to accelerate the classification process. Finally, the mineral particles with the smallest particle size fall into the ore receiving plate 12, and the remaining screens 9 have graded products of each particle size; when the screening operation is completed, the layers of screens are disassembled and weighed separately, so that the particle size classification sampling test of large particle materials in the crushing system can be completed, and accurate detection data can be obtained after calculation.

Claims

1. A simple screening machine suitable for on-site detection of coarse-grained ore particle size, characterized in that: The invention comprises a frame (1), wherein a motor (2) is provided on the top of the frame (1), a rotating wheel (4) is provided on the side of the motor (2), and the two are connected via a connecting shaft (3), a first connecting rod (6) is provided on the side of the rotating wheel (4), and the two are connected via a second connecting rod (5), a push-pull frame (14) is provided at the end of the first connecting rod (6), and the two are connected via a movable shaft sleeve (15), a symmetrically arranged limiting slide rails (13) are provided on the inner wall of the push-pull frame (14), a movable shaft (17) is provided between the two limiting slide rails (13), and the three are connected via a ball bearing (11), a screen fixing frame (7) is provided on the top of the movable shaft (17), the screen fixing frame (7) is provided with a plurality of layers of screens (9), and the two are connected via fixing bolts (10).

2. A simple screening machine suitable for on-site detection of coarse-grained ore particle size according to claim 1, characterized in that: The four corners of the screen (9) are provided with fixing screw holes (16) which are matched and connected with fixing bolts (10).

3. A simple screening machine suitable for on-site detection of coarse-grained ore particle size according to claim 1, characterized in that: A spill prevention cover (8) is provided above the screen (9).

4. A simple screening machine suitable for on-site detection of coarse-grained ore particle size according to claim 1, characterized in that: A ore receiving tray (12) is also provided below the screen (9).

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