Automatic sampling device for bulk materials

Abstract

The utility model relates to an automatic bulk material sampling device, which belongs to the field of metallurgical device sampling equipment and comprises a material receiving groove, a material guide groove, a material storage box and an air cylinder. A support is arranged at the bottom of the material receiving groove, and the material guide groove is obliquely connected to the left end of the material receiving groove. The material storage box is arranged at the lower end of the material guide groove; a sampling plate is mounted at the top end of the piston rod of the air cylinder; the sampling plate can reciprocate along the material receiving groove, and the air cylinder is provided with a control mechanism used for controlling the movement frequency and the movement time interval of the piston rod in a matched mode. According to the utility model, the technical level of automatic equipment of an enterprise can be improved, the labor intensity and the workload of post personnel are reduced, the problems of large sampling randomness, lack of standard operation, large sample quality fluctuation and the like caused by manual sampling are effectively avoided, timed and quantitative sampling of material samples is realized, and the sampling efficiency and the sampling quality are improved; in addition, the harm to personnel safety and occupational health caused by manual field sampling can be completely eradicated.

Description

Technical Field

[0001] The utility model belongs to the field of sampling equipment for metallurgical devices, and in particular relates to an automatic sampling device for bulk materials. Background Art

[0002] In the pyrometallurgical smelting of lead, zinc, and other metals, sampling incoming materials is a crucial and important step. Timely sampling and analysis of smelting materials allows for the adjustment of production process parameters based on their composition, ensuring safe and stable production. However, current sampling is often performed manually. Manual sampling presents the following problems: On the one hand, due to differences in work attitudes and uneven skill levels among personnel, material sampling operations are highly arbitrary, poorly standardized, with large fluctuations in sample quality and lack of representativeness, resulting in poor service and guidance for production. On the other hand, the work tasks are relatively tedious, and the labor intensity and workload of personnel in these positions are high. In recent years, with the continuous optimization and integration of human resources and a shortage of labor in the market, most companies in the heavy metal pyrometallurgical smelting industry have experienced varying degrees of staff reductions and staff shortages. As a result, the labor intensity and workload of personnel in these positions have also increased. Taking the lead smelting batching position at our company's Isa furnace as an example, there are currently only 2-3 personnel per shift. They not only have to maintain normal production operations, but also take into account safety, environmental protection, equipment inspection and maintenance, and other tasks. At the same time, they are also responsible for material sampling and sample delivery. The incoming materials need to be sampled every 2 hours, and 4-5 samples are taken and mixed every day and sent to the quality inspection center for analysis. The operation procedures are cumbersome and the workload is relatively heavy. Thirdly, manual sampling requires workers to work around running belt conveyors, scraper conveyors and other mechanical equipment, which poses a great safety hazard. There is a risk of workers being injured by running belt conveyors, scraper conveyors and other equipment. Fourthly, when conveying bulk materials such as mineral materials and coal particles, there is more or less overflow or flying dust in the environment around the conveying equipment. Manual sampling cannot avoid the occupational health risks brought by dust, and there are certain occupational health hazards. Summary of the Invention

[0003] In order to overcome the problems existing in the background technology, the utility model provides an automatic sampling device for bulk materials, which can not only improve the technical level of the enterprise's automation equipment, reduce the labor intensity and workload of job personnel, and effectively avoid the problems of random sampling, lack of operation standards, and large fluctuations in sample quality caused by manual sampling, but also realize the timed and quantitative sampling of material samples, improve sampling efficiency and sampling quality, and eliminate the personnel safety and occupational health hazards caused by manual on-site sampling.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions:

[0005] The automatic sampling device for bulk materials includes a material receiving trough, a material guide trough, a material storage box and a cylinder; a bracket is provided at the bottom of the material receiving trough, and the material guide trough is obliquely connected to the left end of the material receiving trough; the material storage box is arranged at the lower end of the material guide trough; the piston rod of the cylinder is arranged toward the material receiving trough, and a sampling plate is installed on the top end of the piston rod of the cylinder; the sampling plate can move back and forth along the material receiving trough.

[0006] Preferably, the cylinder is equipped with a control mechanism for controlling the frequency and time interval of movement of the piston rod.

[0007] Preferably, the control mechanism includes an electromagnetic control valve and a timer, the electromagnetic control valve is connected to the cylinder, and the timer is connected to the electromagnetic control valve.

[0008] Preferably, the cylinder is also equipped with a gas pressure reducer for adjusting the gas source pressure.

[0009] Preferably, the width of the sampling plate matches the width of the material receiving trough, the lower end surface of the sampling plate fits with the groove surface of the material receiving trough, and can slide back and forth along the groove surface of the material receiving trough.

[0010] Preferably, a bracket is provided below the cylinder.

[0011] Preferably, the receiving trough is arranged at the discharge port of the discharging equipment.

[0012] Preferably, the discharging equipment is a belt conveyor, a scraper conveyor, a bucket elevator or a drum granulator.

[0013] Beneficial effects of the utility model:

[0014] The utility model can not only improve the technical level of enterprise automation equipment, effectively avoid the problems of random sampling, lack of operation standardization, large fluctuation of sample quality and so on caused by manual sampling, realize the timed and quantitative sampling of material samples, improve sampling efficiency and sampling quality, but also eliminate the personnel safety and occupational health hazards caused by manual on-site sampling, and reduce the labor intensity and workload of post personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the material receiving trough and material guiding trough structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cylinder structure of the utility model;

[0018] Figure 4 This is a schematic diagram of a control mechanism of an automatic sampling device for bulk materials according to the present invention;

[0019] In the accompanying drawings, 1-receiving trough; 2-cylinder granulator; 3-sampling plate; 4-control mechanism; 5-cylinder; 6-storage box; 7-material guide trough. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0021] In the description of the present invention, unless otherwise specified, the terms "left", "right", "up", "down", etc., indicating directions or state relationships, are based on the directions or state relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0023] like Figure 1-4 As shown, the automatic bulk material sampling device includes a receiving trough 1, a material guide trough 7, a material storage box 6, and a cylinder. A bracket is provided at the bottom of the receiving trough 1 to support the receiving trough 1 next to the discharge port of a discharging device. The discharging device can be a bulk material conveying device such as a belt conveyor, scraper conveyor, bucket elevator, or drum pelletizer. This embodiment uses sampling from the discharge port of the drum pelletizer 2 as an example.

[0024] After the receiving chute 1 is fixed, it is located beside the discharge port of the cylindrical granulator 2, for example, Figure 1 The material on the receiving trough 1 is scraped to the left end by the sampling plate 3 and enters the material storage box 6 along the material guide trough 7.

[0025] The cylinder's piston rod is positioned toward the material receiving trough 1, and a sampling plate 3 is mounted on its top end; this plate 3 can reciprocate along the material receiving trough 1. The width of the sampling plate matches that of the material receiving trough 1, and its lower end surface fits against the surface of the trough 1, allowing it to slide back and forth along the surface. A bracket is located below the cylinder to support the sampling plate 3 at a height consistent with the material receiving trough 1. Before sampling, the cylinder's piston rod moves the sampling plate 3 left and right: first to the right, pushing away any remaining material from the material receiving trough 1, then to the left, scraping the material along the guide trough 7 and into the storage box 6.

[0026] The cylinder 5 is equipped with a control mechanism 4 for controlling the frequency and interval of piston rod movement, and a gas pressure reducer for adjusting the gas source pressure. The control mechanism 4 includes a solenoid control valve and a timer, with the solenoid control valve connected to the cylinder, and the timer connected to the solenoid control valve. The opening and closing of the solenoid control valve controls the extension and retraction of the cylinder piston rod. The timer counts time, and the timer setting controls the sampling period and frequency of the device. The gas pressure reducer adjusts the gas source pressure, thereby controlling the speed of the cylinder piston rod movement.

[0027] Application examples of this utility model:

[0028] The receiving trough 1 is installed at the discharge port of the cylindrical granulator 2, and a cylinder 5 is installed on the outside of the cylindrical granulator as the actuator of the whole device. A sampling plate 3 is installed on the top of the piston rod of the cylinder 5. The sampling plate 3 is driven to move back and forth along the sampling trough 1 by the extension and contraction of the cylinder piston rod, and the material is scraped to the guide trough 7 and collected by the sample storage box 6 to complete the sampling.

[0029] Install a control mechanism 4 as the control system of the entire device. The control mechanism includes an electromagnetic control valve, a timer and a gas pressure reducer. The electromagnetic control valve controls the power gas source of the cylinder 5, and controls the extension and retraction of the cylinder piston rod by opening and closing the electromagnetic control valve. The timer is responsible for counting the time, and the sampling period and frequency of the device are controlled by the time setting of the timer. The gas pressure reducer is used to adjust the size of the gas source pressure, and the speed of the cylinder piston rod movement is controlled by adjusting the size of the gas source pressure. Compressed air with a pressure of about 0.6 MPa is introduced into the control mechanism as the power source of the control mechanism of the entire device. The device is on standby, the piston rod of the cylinder 5 is in a retracted state, the sampling plate 3 stays at the left end of the material receiving trough 1, and the timer in the control mechanism 4 starts the first round of timing (7200s); when the first round of the timer reaches 7200s, the electromagnetic control valve in the control mechanism 4 is actuated, the piston rod of the cylinder 5 extends to drive the sampling plate 3 to move to the right to push down the remaining material in the material receiving trough 1, and stays at the right end position of the material receiving trough 1, the device enters the sampling working state, and the timer starts the second round of timing (60s); after the second round of the timer reaches 60s, the electromagnetic control valve in the control mechanism 4 is actuated, the piston rod of the cylinder 5 contracts to drive the sampling plate 3 to move to the left, pushing the material in the material receiving trough 1 into the material guide trough 7 and into the material storage box 6, and the device re-enters the standby state. In this way, the 7200s device repeats the above steps and takes samples in a cycle. After completing multiple automatic sampling operations, the staff on duty mix the samples and then send them to the sample inspection department for inspection and analysis.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An automatic sampling device for bulk materials, characterized in that: It includes a material receiving trough, a material guiding trough, a material storage box and a cylinder; a bracket is provided at the bottom of the material receiving trough, and the material guiding trough is obliquely connected to the left end of the material receiving trough; the material storage box is arranged at the lower end of the material guiding trough; the piston rod of the cylinder is arranged toward the material receiving trough, and a sampling plate is installed on the top end of the piston rod of the cylinder; the sampling plate can move back and forth along the material receiving trough; the material receiving trough is arranged at the discharge port of the discharging equipment.

2. The automatic sampling device for bulk materials according to claim 1, characterized in that: The cylinder is equipped with a control mechanism for controlling the movement frequency and movement time interval of the piston rod.

3. The automatic sampling device for bulk materials according to claim 2, characterized in that: The control mechanism comprises an electromagnetic control valve and a timer. The electromagnetic control valve is connected to the cylinder, and the timer is connected to the electromagnetic control valve.

4. The automatic sampling device for bulk materials according to claim 3, characterized in that: The cylinder is also equipped with a gas pressure reducer for adjusting the gas source pressure.

5. The automatic sampling device for bulk materials according to claim 1, characterized in that: The width of the sampling plate matches the width of the material receiving trough, the lower end surface of the sampling plate fits with the groove surface of the material receiving trough, and can slide back and forth along the groove surface of the material receiving trough.

6. The automatic sampling device for bulk materials according to claim 1, characterized in that: A bracket is provided below the cylinder.

7. The automatic sampling device for bulk materials according to claim 1, characterized in that: The discharging equipment is a belt conveyor, a scraper conveyor, a bucket elevator or a drum granulator.

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