A material sampling device for a belt conveyor

Abstract

This invention discloses a material sampling device for a belt conveyor, comprising: a support spanning above the belt conveyor, with a sampling port on the support and a sample collection box on a crossbeam along one side of the sampling port; a drive unit fixed to the support, with a rotating disk fixed to the drive end of the drive unit, and multiple limiting rods evenly distributed and fixed on the side of the rotating disk away from the drive unit; multiple sampling rods, one end of which is rotatably connected to one side of the rotating disk and can be stopped by the limiting rods, and the other end of the sampling rod is fixed to a sampling cylinder located above the belt conveyor, with one end of the sampling cylinder closed and the other end serving as a material inlet / outlet; and a control box electrically connected to the drive unit via a cable. This invention employs automatic control and mechanized operation during the sampling process, keeping personnel away from operating equipment. Compared with the original method relying on manual sampling, it offers higher safety, more accurate sampling, saves labor, and improves the reliability of smelting metal balance statistics.

Description

Technical Field

[0001] This invention relates to the field of tin smelting and production technology, and more specifically to a material sampling device for a belt conveyor. Background Technology

[0002] Tin smelting typically generates recycled tin-containing materials and fumes. These fumes often have a high tin content and are also rich in toxic arsenic trioxide. Therefore, centralized recycling and processing of these materials and fumes are necessary. To facilitate storage, transportation, and further smelting, the tin smelting fumes must be granulated. First, the fumes are granulated into particles using a granulator. Then, these particles, along with the recycled tin-containing materials, are conveyed via belt conveyor to a cylindrical mixer to be properly mixed with tin concentrate before being transported to a top-blown furnace for further smelting. During this process, samples of the recycled tin-containing materials and tin fumes need to be taken and sent to a quality control department for tin content analysis. However, because the equipment for recycling tin fumes and granulation is fully enclosed, sampling cannot be performed directly on the belt conveyor.

[0003] Traditional sampling methods mainly rely on manual sampling (such as...) Figure 1 As shown in the diagram, the sampling personnel 100 use a sampling spoon 200 to take samples. During sampling, they must cross the protective barrier 300 and crouch beside the belt conveyor 400 to use the sampling spoon. This not only poses a serious safety hazard of being injured by the machinery, but also causes fatigue and reduced concentration due to the long crouching time. Furthermore, because it is manual sampling, various uncertainties exist, and the accuracy of the sampling is questionable, seriously affecting the statistical analysis of smelting metal balance.

[0004] Therefore, given that traditional sampling methods pose significant safety risks, involve long labor hours, and have low sampling accuracy, it is crucial to develop an advanced equipment that can replace manual labor, has a simple structure, and meets the requirements for sampling accuracy to solve production problems, thereby achieving cost reduction, efficiency improvement, and rational optimization of human resources. This is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides an advanced equipment that can replace manual labor, has a simple structure, and can meet the requirements of sampling accuracy to solve production problems, so as to achieve the purpose of reducing costs, increasing efficiency, and rationally optimizing human resources.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A material sampling device for a belt conveyor includes:

[0008] A support frame spans above the belt conveyor, and a sampling port is provided on the support frame. A sample collection box is provided on a crossbeam along one side of the sampling port.

[0009] A driving unit is fixed on the bracket. A rotating disk is fixed on the driving end of the driving unit. The rotating disk is located at the sampling port. Multiple limiting rods are evenly distributed and fixed on the side of the rotating disk away from the driving unit.

[0010] The sampling rods, which are multiple in number, have one end rotatably connected to one side of the rotating disk and can be stopped by the limiting rod. The other end of the sampling rod is fixed with a sampling cylinder, which is located above the belt conveyor. One end of the sampling cylinder is closed, and the other end is a material inlet / outlet. The material on the belt conveyor enters the sampling cylinder through the material inlet / outlet. When the sampling rod rotates to the position of the collection box, the sampling rod strikes the crossbeam, causing the material in the sampling cylinder of the sampling rod to be released into the collection box through the material inlet / outlet.

[0011] A control box, which is electrically connected to the drive unit via a cable.

[0012] As can be seen from the above technical solution, compared with the prior art, the material conveying work of the tin smelting batching process is inseparable from the conveying of materials by the belt conveyor. The present invention utilizes the existing equipment on the production site, combined with an automatic sampling device designed for safe sampling, to complete the sampling work. That is, the present invention discloses a material sampling device on the belt conveyor. The specific process is as follows: the bracket of the device of the present invention is straddling the belt conveyor on the production site. The drive unit is started by controlling the control box. The rotating disk rotates clockwise, driving the sampling rod and sampling cylinder to rotate clockwise synchronously. When the sampling rod moves to the top of the belt conveyor, corresponding to the 7 o'clock position, the sampling rod abuts against it. On one side, the limiting rod restricts the sampling rod, preventing it from moving counterclockwise and forcing it to continue moving clockwise. This forces the dust particles and tin-containing materials from the conveyor belt into the sampling cylinder, completing the sampling process. As the rotating disc continues to rotate to the 4 o'clock position, the sampling rod falls rapidly under gravity, striking the crossbeam. The material in the sampling cylinder then falls into the collection box, completing one sampling cycle. Subsequently, driven by the clockwise rotating disc, the sampling rod continues to move downwards to the 7 o'clock position, allowing the sampling cylinder to repeat the sampling action.

[0013] Therefore, in its design, this invention combines practical production experience and makes full use of existing equipment on the production site, greatly reducing equipment investment and improving the utilization rate of existing equipment. The device of this invention has a simple structure, small size, and light weight, making it easy to use and maintain, and reducing the space occupied on the production site. In the sampling process, this invention adopts an automatic control method, mechanized operation, and personnel are far away from operating equipment. Compared with the original method of relying on manual sampling, it is safer, more accurate in sampling, saves labor, and improves the reliability of smelting metal balance statistics.

[0014] Furthermore, multiple mounting rods are evenly distributed and fixed on one side of the rotating disk, and each mounting rod is equipped with a bearing. The outer ring of the bearing is fixedly connected to one end of the sampling rod.

[0015] The beneficial effects of adopting the above technical solution are: it enables the sampling rod to be rotatably connected to the mounting rod, and allows the sampling rod to continue to rotate with the rotating disk after striking the crossbeam.

[0016] Furthermore, a mounting sleeve is fixed to one end of the sampling rod, and the mounting sleeve is fitted onto the outer ring of the bearing.

[0017] The beneficial effects of adopting the above technical solution are: it facilitates the installation of sampling rods and installation rods.

[0018] Furthermore, a support frame is fixed on the crossbeam, and the sample collection box is placed inside the support frame.

[0019] The beneficial effects of adopting the above technical solution are: it facilitates the placement of sample collection boxes.

[0020] Furthermore, a handle is fixed to the sample collection box.

[0021] The beneficial effects of adopting the above technical solution are as follows: after sampling is completed, the sample collection box can be removed from the support frame by the handle and transferred to the quality inspection department for subsequent testing.

[0022] Furthermore, the drive end of the drive unit is fixedly connected to the rotating disk by screws and a pressure ring.

[0023] The beneficial effects of adopting the above technical solution are as follows: When installing the rotating disk, the rotating disk is placed on the drive end of the drive unit, then the pressure ring is put on, and finally the screw is tightened on the drive end, so that the pressure ring presses the rotating disk on the drive end, preventing the rotating disk from falling off during the movement and improving safety.

[0024] Furthermore, the drive unit is a cycloidal pinwheel reducer. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 The attached figure is a schematic diagram of sampling in the prior art.

[0027] Figure 2 The attached figure is a structural schematic diagram of a material sampling device on a belt conveyor provided by the present invention. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 2 As shown, an embodiment of the present invention discloses a material sampling device for a belt conveyor, comprising:

[0030] Support 1 spans above belt conveyor 400. Sampling port 101 is provided on support 1. A sample collection box 2 is provided on the crossbeam 102 on one side of the sampling port 101.

[0031] The drive unit 3 is fixed on the bracket 1. A rotating disk 4 is fixed on the drive end of the drive unit 3. The rotating disk 4 is located at the sampling port 101. Multiple limiting rods 5 are evenly distributed and fixed on the side of the rotating disk 4 away from the drive unit 3.

[0032] Sampling rod 6, there are multiple sampling rods 6, one end of which is rotatably connected to one side of the rotating disk 4 and can be stopped on the limiting rod 5. The other end of the sampling rod 6 is fixed with a sampling cylinder 7. The sampling cylinder 7 is located above the belt conveyor 400. One end of the sampling cylinder 7 is closed, and the other end is a material inlet / outlet 701. The material on the belt conveyor 400 enters the sampling cylinder 7 through the material inlet / outlet 701. When the sampling rod 6 rotates to the position of the collection sample box 2, the sampling rod 6 strikes the crossbeam 102, so that the material in the sampling cylinder 7 on the sampling rod 6 is put into the collection sample box 2 through the material inlet / outlet 701.

[0033] Control box 8 is electrically connected to drive unit 3 via cable 9.

[0034] Multiple mounting rods 10 are evenly distributed and fixed on one side of the rotating disk 4. Each mounting rod 10 is equipped with a bearing, and the outer ring of the bearing is fixedly connected to one end of the sampling rod 6.

[0035] One end of the sampling rod 6 is fixed with an installation sleeve 11, which is fitted onto the outer ring of the bearing.

[0036] A support frame 12 is fixed on the crossbeam 102, and the sample collection box 2 is placed inside the support frame 12.

[0037] A handle 13 is fixed on the sample collection box 2.

[0038] The drive end of the drive unit 3 is fixedly connected to the rotating disk 4 by screws 14 and pressure rings 15.

[0039] Drive unit 3 is a cycloidal pinwheel reducer.

[0040] In the above embodiments, (1) the bracket of the present invention is welded from multiple No. 10 channel steels of different lengths. (2) There are 3 or 6 sampling rods and sampling cylinders, or other quantities, which can be selected according to actual needs. The sampling rod is a φ20mm steel bar with a length of 250mm, and the sampling cylinder is a φ50mm steel pipe with a length of 60mm and a sealed bottom. One end of the sampling rod is welded to the top edge of the sampling cylinder, and the other end of the sampling rod is movably connected to the rotating disk. The minimum distance between the sampling cylinder and the belt conveyor is 3-6mm. (3) The rotating disk is a φ500mm thick metal disc, and the rotating disk can be adjusted within the range of φ400-700mm. (4) The limiting rod is a φ16mm long steel bar. (5) The pressure ring is a φ60mm thick metal disc with an inner hole of φ13mm. (6) The support frame is a 340x340mm hollow square metal bracket. (7) The sample collection box is a steel square box with a length of 300mm, a width of 300mm, and a height of 200mm. It can be stacked and placed in the support frame and is equipped with a handle for easy transfer of samples after sampling. (8) The control box is equipped with a frequency converter to control the rotation speed of the cycloidal pinwheel reducer to adjust the sampling frequency.

[0041] The specific steps for sampling operations using the device of this invention on a conveyor belt are as follows:

[0042] (1) Place the support of the device of the present invention across the belt conveyor;

[0043] (2) The cycloidal pinwheel reducer is connected to the control box with frequency converter via a cable, and then the power is turned on.

[0044] (3) When the belt conveyor is running, press the start button on the control box. The device will start and begin sampling. The cycloidal pinwheel reducer drives the rotating disk to rotate clockwise 6-12 revolutions per minute. The rotating disk then drives the sampling rod and sampling cylinder to rotate clockwise synchronously. When the sampling rod moves to the top of the belt conveyor, corresponding to the 7 o'clock position, the sampling rod abuts against the limit rod on one side. At this time, the limit rod limits the sampling rod, preventing it from moving counterclockwise and allowing it to continue moving clockwise, thus controlling the belt conveyor's rotation. Dust particles and recycled tin-containing materials on the conveyor are forced into the sampling cylinder to complete the sampling process from the belt conveyor. As the rotary table continues to rotate to the 4 o'clock position, the sampling rod falls rapidly under the action of gravity and strikes the crossbeam. At this time, the material in the sampling cylinder falls into the collection box, completing a complete sampling process. Then, driven by the clockwise rotation of the rotary table, the sampling rod continues to move downward to the 7 o'clock position, so that the sampling cylinder repeats the previous sampling action to continue sampling.

[0045] (4) After multiple sampling cylinders rotate continuously, the continuous sampling work is completed.

[0046] (5) After the belt conveyor stops working, press the stop button on the control box to stop the device from working. Open the protective net, take out the sample collection box, and transfer it to the quality inspection department for testing.

[0047] Application examples of this invention:

[0048] In a top-blown furnace with an annual production capacity of 80,000 tons of crude tin, over 55,000 tons of tin fumes and tin-containing materials are generated annually. A sampling device, consisting of a cycloidal pinwheel reducer with a speed ratio of 1:100, a rotary disc, a sampling rod and sampling box, and a frequency converter (model FR-E74-2.2K-CHT), is used in conjunction with a belt conveyor on the production line for sampling. After adopting this device, the sampling accuracy improved by 70% (assuming an average tin content of 50%, a 1% sampling error results in a loss of 550 tons of metal). The number of personnel required for the operation was reduced from four to two, and the sampling accuracy was significantly improved.

[0049] In an electric furnace producing 6,000 tons of crude tin annually, 150 tons of tin-containing fumes are generated each year. A sampling device, consisting of a cycloidal pinwheel reducer with a speed ratio of 1:150, a rotating disk, a sampling rod, and a frequency converter (model FR-E74-0.75K-CHT), is used in conjunction with a belt conveyor on the production line for sampling. After adopting this device, the sampling accuracy improved by 80%, and the number of personnel required for each operation was reduced from two to one.

[0050] In a fuming furnace with an annual processing capacity of 160,000 tons, 2,500 tons of tin-containing fumes are generated annually. A sampling device, consisting of a cycloidal pinwheel reducer with a speed ratio of 1:120, a rotating disk, a sampling rod, and a frequency converter (model FR-E74-1.5K-CHT), is used in conjunction with a belt conveyor on the production line for sampling. After adopting this device, the sampling accuracy improved by 80%, and the number of personnel required for each operation was reduced from two to one.

[0051] Therefore, this sampling device, in conjunction with the rotation of the belt conveyor, enables safe and efficient uniform sampling from the conveyor belt during equipment operation, and placement of samples into sample boxes. Because the device can operate at multiple speeds and perform mechanized operations, it can safely, efficiently, and uniformly achieve automated sampling for the recovery of tin fume particles and tin-containing materials.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material sampling device for a belt conveyor, characterized in that, include: A support (1) spans above a belt conveyor (400), and a sampling port (101) is provided on the support (1). A sample collection box (2) is provided on a crossbeam (102) on one side of the sampling port (101). The driving part (3) is fixed on the bracket (1). A rotating disk (4) is fixed on the driving end of the driving part (3). The rotating disk (4) is located at the sampling port (101). Multiple limiting rods (5) are evenly distributed and fixed on the side of the rotating disk (4) away from the driving part (3). Sampling rod (6), there are multiple sampling rods (6), one end of which is rotatably connected to one side of the rotating disk (4) and can be stopped on the limiting rod (5). The other end of the sampling rod (6) is fixed with a sampling cylinder (7). The sampling cylinder (7) is located above the belt conveyor (400). One end of the sampling cylinder (7) is closed, and the other end is a material inlet / outlet (701). The material on the belt conveyor (400) enters the sampling cylinder (7) through the material inlet / outlet (701). When the sampling rod (6) rotates to the position of the collection sample box (2), the sampling rod (6) strikes the crossbeam (102), so that the material in the sampling cylinder (7) on the sampling rod (6) is put into the collection sample box (2) through the material inlet / outlet (701). The control box (8) is electrically connected to the drive unit (3) via a cable (9); A support frame (12) is fixed on the crossbeam (102), and the sample collection box (2) is placed inside the support frame (12); The sample collection box (2) is fixed with a handle (13).

2. The material sampling device for a belt conveyor according to claim 1, characterized in that, Multiple mounting rods (10) are evenly distributed and fixed on one side of the rotating disk (4). Each mounting rod (10) is equipped with a bearing, and the outer ring of the bearing is fixedly connected to one end of the sampling rod (6).

3. The material sampling device for a belt conveyor according to claim 2, characterized in that, One end of the sampling rod (6) is fixed with an installation sleeve (11), which is sleeved on the outer ring of the bearing.

4. A material sampling device for a belt conveyor according to any one of claims 1-3, characterized in that, The drive end of the drive unit (3) is fixedly connected to the rotating disk (4) by screws (14) and pressure ring (15).

5. A material sampling device for a belt conveyor according to any one of claims 1-3, characterized in that, The drive unit (3) is a cycloidal pinwheel reducer.

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