Rapid and automatic sample taking and preparing device in middle of belt

Abstract

The utility model relates to a rapid and automatic sampling device in the middle of a belt, which belongs to the technical field of metal smelting equipment and comprises a sampling mechanism arranged in a copper mine metering station, and the sampling mechanism comprises a middle sampling machine arranged at the top end of a primary main belt at an inlet of the copper mine metering station and used for sampling copper mine on the primary main belt; the riffle division machine is fixedly arranged on one side of the middle sampling machine and is used for receiving the copper ore sample collected by the middle sampling machine and dividing the copper ore sample into a sample material and a rejected sample material; a sample charging barrel is arranged at a certain distance from the lower end of the riffle divider, a sampling chute and a rejected sample chute are connected between the riffle divider and the sample charging barrel, a sample material enters the sample charging barrel through the sampling chute, and the rejected sample material flows into a secondary main belt in the copper mine metering station through the rejected sample chute. According to the utility model, the sampling speed is high, on the premise that the sampling work can be completed, the composition of the mechanism is greatly simplified, and the use cost is saved.

Description

Technical Field

[0001] The utility model relates to a rapid automatic sampling and sample preparation device in the middle of a belt, belonging to the technical field of metal smelting equipment. Background Art

[0002] The ore conveying belt sampling adopts an artificial timing sampling mode. When sampling, a shovel is used to sample at the sampling port of the belt head. This artificial sampling mode has the following problems:

[0003] First, there are safety hazards. The sampling point is a moving belt device, with a high sampling frequency and high labor intensity. Especially when copper concentrate powder is diffused, vision and hearing are limited after wearing a respirator and protective glasses. Working in a high-intensity and complex environment has a risk of mechanical injury and great safety hazards.

[0004] Second, a large number of operators are required for high-frequency continuous artificial sampling and sample transfer, resulting in low labor efficiency.

[0005] Third, it is impossible to implement full-section sampling, with poor representativeness, easy to produce inspection deviation, and poor result accuracy.

[0006] In view of the problems existing in artificial sampling, a belt middle sampling machine is currently widely used to complete automatic sampling and sample preparation.

[0007] A sampling system for belt-conveyed ore powder disclosed in a Chinese invention patent with the publication number of CN115557220A. The rotating shaft in the middle of the sampling rotating frame is connected to the motor drive. The sampling arm is arranged radially in the middle of the rotating shaft. There is a sampling bucket at the free end of the sampling arm. There is an aggregate hopper for receiving the sampled material on the path where the sampling bucket drops the material. The aggregate hopper guides the material to the reduction conveyor belt through a conveying pipe. A reduction sampling rotating frame is arranged in the middle section of the reduction conveyor belt. The sampled material dropped by the reduction sampling bucket on the reduction sampling rotating frame is received and sent to the sample packaging station C. The discharging end of the reduction conveyor belt is connected to a bucket elevator to lift and convey the excess ore to the conveying belt B.

[0008] To complete one sampling in the above reference example, it is necessary to cooperate with the sampling rotating frame, sampling arm, sampling bucket, aggregate hopper, reduction conveyor belt, reduction sampling rotating frame, reduction sampling bucket, and bucket elevator in sequence. The mechanism is redundant and complex, with a large volume, high cost, long sampling time. And because the sampling medium is ore powder, the operating environment is poor, the equipment failure rate is high, and the maintenance cost is high. Therefore, improvement is urgently needed. Utility Model Content

[0009] In order to overcome the above disadvantages in the prior art, the utility model designs a rapid automatic sampling and sample preparation device in the middle of a belt, which has a fast sampling speed. On the premise of being able to complete the sampling work, the composition of the mechanism is greatly simplified, and the use cost is saved.

[0010] To achieve the above object, the utility model adopts the following technical solutions:

[0011] A rapid automatic sampling and sample preparation device for the middle part of a belt, comprising a sampling mechanism arranged in a copper ore metering station, and the sampling mechanism includes:

[0012] A middle sampler: arranged at the top of the primary main belt at the entrance of the copper ore metering station, and used for sampling the copper ore on the primary main belt;

[0013] A riffle splitter: fixedly arranged on one side of the middle sampler, used for receiving the copper ore samples collected by the middle sampler, and used for splitting the copper ore samples into sample materials and reject materials;

[0014] A sample barrel is arranged at a certain distance below the riffle splitter, and a sampling chute and a reject chute are connected between the riffle splitter and the sample barrel. The sample materials enter the sample barrel through the sampling chute, and the reject materials flow into the secondary main belt in the copper ore metering station through the reject chute.

[0015] Further, a material flow detector is also arranged on the primary main belt for detecting whether the copper ore material flow on the primary main belt is continuous.

[0016] Further, both the sampling chute and the reject chute are inclined.

[0017] Further, the end of the sampling chute is sleeved inside the sample barrel.

[0018] Further, the length of the sampling chute is greater than the length of the reject chute.

[0019] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0020] Through the arrangement of the middle sampler and the riffle splitter, the utility model can directly split the copper ore samples by the riffle splitter after sampling, eliminating the process of the splitting belt transportation. It can effectively improve the splitting efficiency after sampling, greatly streamline the mechanism, save costs, and at the same time, by using the height difference to install the riffle splitter and the sample barrel, the sample materials can be quickly transported directly to the sample barrel by using the gravitational potential energy, improving the sample collection efficiency. At the same time, the reject materials are directly transported to the secondary main belt through the reject chute. Compared with the existing method of transporting the reject materials by a bucket elevator, it not only further streamlines the mechanism, saves the cost of the device, but also improves the transportation efficiency. On the premise of ensuring the representativeness of the samples, the utility model cancels the bucket elevator, the splitting belt conveyor, etc. The reduction of auxiliary equipment makes the equipment volume of the device greatly reduced, more suitable for installation and use in narrow spaces, and greatly reduces the installation cost and maintenance cost. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the working structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the installation structure of the present utility model.

[0023] Among them, the reference numerals are: 100, sampling mechanism; 1, middle sampler; 2, material flow detector; 3, riffle splitter; 4, reject chute; 5, sampling chute; 6, sample bin; 7, first-stage main belt; 8, second-stage main belt. Detailed implementation manners

[0024] The present utility model will be described in more detail below in conjunction with embodiments.

[0025] Please refer to Figure 1 and Figure 2 , the rapid automatic sampling and sample preparation device in the middle of the belt of this embodiment includes a sampling mechanism 100 arranged in the copper ore metering station. Among them, a first-stage main belt 7 is arranged at the entrance of the copper ore metering station for inputting copper ore into the copper ore metering station, and a static metering and weighing system is arranged in the metering station, mainly used for metering the transported copper concentrate.

[0026] Specifically, the sampling mechanism 100 includes:

[0027] Middle sampler 1: arranged at the top of the first-stage main belt 7 at the entrance of the copper ore metering station, used for sampling the copper ore on the first-stage main belt 7; among them, the specific working mode of the middle sampler 1 is to control the collection arm of the middle sampler 1 to sweep the copper ore on the first-stage main belt 7 regularly through a timer, collect copper ore samples during the sweeping process, and then the collection arm of the middle sampler 1 throws the collected copper ore samples into the aggregate pipe;

[0028] In this embodiment, the model of the middle sampler 1 is WLCY-Z1400.

[0029] Riffle splitter 3: fixedly arranged on one side of the middle sampler 1, used for receiving the copper ore samples collected by the middle sampler 1 and for splitting the copper ore samples into sample materials and reject materials;

[0030] In this embodiment, the model of the riffle splitter 3 is ZDSF.

[0031] Specifically, the aggregate pipe is connected to the riffle splitter 3, and the copper ore samples enter the riffle splitter 3 through the aggregate pipe. The riffle splitter 3 splits the copper ore samples, and the splitting ratio of the riffle splitter 3 can be adjusted manually. The copper ore samples are split into sample materials and reject materials by the riffle splitter 3, and the sample materials are used for subsequent chemical analysis;

[0032] A sample cylinder 6 is provided at a certain distance below the lower end of the riffle splitter 3. A sampling chute 5 and a reject chute 4 are connected between the riffle splitter 3 and the sample cylinder 6. The sample material enters the sample cylinder 6 through the sampling chute 5, and the reject material flows into the secondary main belt 8 in the copper ore metering station through the reject chute 4. A metering and weighing system is provided at the rear end of the secondary main belt 8, that is, the reject material is directly returned to the process. Since the loss of the sample material is very small, the metering error can be effectively reduced.

[0033] As can be seen from the above description, the beneficial effects of the present utility model are as follows: By setting the middle sampler 1 and the riffle splitter 3, the copper ore sample can be directly riffled by the riffle splitter 3 after sampling, eliminating the transportation process, which can effectively improve the riffle efficiency after sampling. At the same time, the transportation of the sample is also cancelled, greatly streamlining the mechanism and saving costs. At the same time, by installing the riffle splitter 3 and the sample cylinder 6 using the height difference, the sample material can be quickly transported directly to the sample cylinder 6 by using the gravitational potential energy, improving the sample collection efficiency. At the same time, the reject material is directly transported to the secondary main belt 8 through the reject chute 4. Compared with the existing method of transporting the reject material by a bucket elevator, it not only further streamlines the mechanism and saves the cost of the device, but also improves the transportation efficiency. On the premise of ensuring the representativeness of the sample, the present utility model cancels the bucket elevator, the riffle belt conveyor, etc. The reduction of auxiliary equipment makes the equipment volume of the device greatly reduced, more suitable for installation and use in narrow spaces, and the installation cost and maintenance cost are greatly reduced.

[0034] Furthermore, a material flow detector 2 for detecting whether the copper ore material flow on the primary main belt 7 is continuous is also provided on the primary main belt 7.

[0035] Furthermore, both the sampling chute 5 and the reject chute 4 are inclined to prevent the copper ore material after riffling from directly impacting the sample cylinder 6 or the secondary main belt 8.

[0036] Furthermore, the end of the sampling chute 5 is sleeved inside the sample cylinder 6, which is convenient for the sample cylinder 6 to collect the copper ore sample material, and the sealed design can effectively prevent sample contamination.

[0037] Furthermore, the length of the sampling chute 5 is greater than the length of the reject chute 4.

[0038] The working principle of the present utility model: The copper ore is input by the primary main belt 7 provided at the entrance of the copper ore metering station, and then the collection arm of the middle sampler 1 is controlled by a timer to periodically sweep the copper ore on the primary main belt 7, and the copper ore sample is collected during the sweeping process. Then, the collection arm of the middle sampler 1 throws the collected copper ore sample into the aggregate pipe;

[0039] The copper ore sample enters the riffle splitter 3 through the aggregate pipe. The riffle splitter 3 divides the copper ore sample, and the copper ore sample is divided into a sample material and a waste sample material by the riffle splitter 3;

[0040] The sample material enters the sample cylinder 6 through the sampling chute 5 to complete the sample collection, and the waste sample material flows into the secondary main belt 8 in the copper ore metering station through the waste sample chute 4.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to specific circumstances.

[0043] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

Claims

1. A fast automatic sampling device for the middle of a belt, comprising a sampling mechanism (100) arranged in a copper mine metering station, characterized in that: The sampling mechanism (100) comprises: A middle sampler (1) is arranged at the top of the primary main belt (7) at the entrance of the copper mine metering station and is used to sample the copper ore on the primary main belt (7); A binary divider and reducer (3): fixedly arranged on one side of the middle sampler (1), used for receiving the copper ore sample collected by the middle sampler (1), and used for reducing the copper ore sample into sample material and discarded sample material; A sample barrel (6) is provided at a certain distance below the lower end of the two-part divider (3), and a sampling chute (5) and a discarded sample chute (4) are connected between the two-part divider (3) and the sample barrel (6). The sample material enters the sample barrel (6) through the sampling chute (5), and the discarded sample material flows into the secondary main belt (8) in the copper mine metering station through the discarded sample chute (4).

2. A belt middle fast automatic sampling device according to claim 1, characterized in that: The primary main belt (7) is also provided with a material flow detector (2) for detecting whether the copper ore material flow on the primary main belt (7) is continuous.

3. A belt middle fast automatic sampling device according to claim 1, characterized in that: The sampling chute (5) and the sample discarding chute (4) are both arranged at an inclination.

4. A belt middle fast automatic sampling device according to claim 1, characterized in that: The end of the sampling slide tube (5) is inserted into the interior of the sample barrel (6).

5. The belt middle fast automatic sampling device according to claim 1, characterized in that: The length of the sampling chute (5) is greater than the length of the sample discarding chute (4).

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