Train sampling machine capable of reducing coal dust in sampling process

Abstract

The utility model relates to a train sampling machine capable of reducing coal dust in the sampling process, and relates to the field of train sampling machines. It comprises a rack and a sampling head, the sampling head is installed on the rack, a dust cover is installed at the upper cavity position of the sampling head, and a protective cover is installed at the hollow position around the sampling head. The utility model can greatly reduce dust in the sampling process of the sampling machine, reduce pollution to the surrounding environment, and reduce harm to construction personnel.

Description

Technical Field

[0001] This utility model relates to the field of train sampling machines, specifically a train sampling machine that can reduce coal dust during the sampling process. Background Technology

[0002] The SDCY-H type gantry-type coal sampling device for trains operates as follows: After the train arrives at the designated sampling location, a sampling point is manually or automatically selected. Once the selection mechanism reaches above the predetermined material sampling point, it automatically unlocks at that point. At this time, the spiral sampling head system is activated, the collection hopper closes to store the sample, and the spiral sampling head rotates and descends to a pre-set depth to begin sampling. After reaching the sampling depth, the spiral sampling head automatically rises back to its original upper position. Then, the selection mechanism moves to the discharge point, the collection hopper automatically opens to discharge the material, and the material is fed into the sample preparation system via the feeding mechanism. After crushing and reducing, the required material fractions enter the sample collection bottle, while the remaining material is directly discharged back to the train car through the coal drop pipe. Simultaneously, after the sampling head has discharged its sample, the selection mechanism moves to the next sampling point for further sampling.

[0003] The product design described above did not consider the dust generation issue that arises during the operation of the sampling device. According to the company's specifications for collecting raw coal delivered by train, 450 sampling points need to be collected daily, and each sampling process will result in coal dust generation.

[0004] Environmental pollution may lead to complaints from nearby residents and factories, and also pose occupational health hazards to on-site workers. Dust generation occurs in three stages during the sampling process: dust during the lifting of the sampling head from the train carriage carrying coal powder, dust during the transfer of the coal sample to the crusher, and dust during the crushing of the coal sample within the crusher.

[0005] Therefore, how to provide a train sampling machine that can reduce coal dust during the sampling process has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to design a train sampling machine that can reduce coal dust during the sampling process. This can significantly reduce dust during the sampling process, thereby reducing pollution to the surrounding environment and harm to construction workers.

[0007] To achieve the above objectives, this utility model provides a train sampling machine that can reduce coal dust during sampling, comprising: a frame and a sampling head, wherein the sampling head is mounted on the frame, a dust cover is installed at the upper cavity of the sampling head, and a protective cover is installed at the hollow positions around the sampling head.

[0008] Furthermore, a screw conveyor and a crusher are installed on the frame. One end of the screw conveyor is connected to the sampling head, and the other end is connected to the crusher through a pipeline.

[0009] Furthermore, a coal retaining curtain is installed at the receiving hopper of the crusher.

[0010] Furthermore, a sample collector is provided below the discharge port of the crusher.

[0011] Furthermore, counterweights are installed on both sides of the bottom of the frame.

[0012] Furthermore, the height of the dust cover is 43cm.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention adds a dust cover to the upper cavity of the sampling head, effectively reducing the excessive coal dust caused by the coal falling from the cavity when the sampling head of the train sampler rises; it also adds a protective cover around the sampling head of the train sampler, reducing the excessive coal dust concentration during the waste disposal process; and it adds a coal-blocking curtain at the crusher receiving hopper of the train sampler, so that the coal sample is crushed while being fed, and the coal-blocking curtain can block the coal dust in real time during the crushing process, reducing the excessive coal dust in the coal sample during the crushing process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1-Frame, 2-Sampling head, 3-Dust cover, 4-Protective cover, 5-Screw conveyor, 6-Crusher, 7-Receiving hopper, 8-Coal curtain, 9-Sample collector, 10-Counterweight. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0020] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] See Figure 1 This embodiment discloses a train sampling machine that can reduce coal dust during sampling, including: a frame 1 and a sampling head 2. The sampling head 2 is mounted on the frame 1. A dust cover 3 is installed at the upper cavity of the sampling head 2, and a protective cover 4 is installed at the hollow positions around the sampling head 2.

[0023] To further optimize the technical solution, a screw conveyor 5 and a crusher 6 are installed on the frame 1. One end of the screw conveyor 5 is connected to the sampling head 2, and the other end is connected to the crusher 6 through a pipeline.

[0024] To further optimize the technical solution, a coal baffle curtain 8 is installed at the receiving hopper 7 of the crusher 6, which can significantly reduce coal ash dust near the receiving hopper 7.

[0025] To further optimize the technical solution, a sample collector 9 is installed below the discharge port of the crusher 6.

[0026] To further optimize the technical solution, counterweights 10 are installed on both sides of the bottom of the frame 1.

[0027] The technical solution has been further optimized. The height of the dust cover 3 is 43cm, which can improve the effect of preventing coal ash.

[0028] This invention adds a dust cover 3 to the upper cavity of the sampling head 2, which effectively reduces the excessive coal dust caused by the coal falling from the cavity when the sampling head 2 of the train sampler rises; it adds a protective cover 4 around the sampling head 2 of the train sampler, which reduces the excessive coal dust concentration during the waste disposal process; and it adds a coal-blocking curtain 8 at the receiving hopper 7 of the crusher 6 of the train sampler, which can block the coal dust in real time during the crushing process of the crusher 6 while the coal sample is being fed, thus reducing the excessive coal dust during the crushing process.

[0029] This utility model underwent testing and experiments, as follows:

[0030] (1) After adding a 43cm dust cover to the upper cavity of the train sampling head for the experiment, the equipment was put into operation, and 50 sampling processes were counted. The number of times the coal powder concentration exceeded the standard is shown in Table 1:

[0031] 1 50 2

[0032] Table 1

[0033] The results showed that adding a 43cm dust cover to the upper cavity of the train sampling head significantly reduced the number of times the coal dust concentration exceeded the standard during the sampling process (only 2 times).

[0034] (2) A protective cover was installed around the sampling head of the train, and a skirt was added below the protective cover. The falling coal returned to the carriage. After the implementation, the improved equipment was put into operation, and 50 samplings were carried out. The number of times the coal powder concentration exceeded the standard is shown in Table 2.

[0035] 1 50 0

[0036] Table 2

[0037] The results showed that after installing a protective cover around the sampling head, the coal powder concentration exceeded the standard 0 times during the sampling process, meeting the target requirements.

[0038] (3) A coal retaining curtain was installed at the feed hopper of the train mining machine crusher. After the implementation, the improved equipment was put into operation, and 50 sampling processes were counted. The number of times the coal powder concentration exceeded the standard is shown in Table 3.

[0039] 1 50 1

[0040] Table 3

[0041] The results showed that after installing a coal curtain at the crusher's feed hopper, the number of times the coal powder concentration exceeded the standard during the sampling process was reduced to only 1, which was a significant improvement.

[0042] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A train sampler that can reduce coal dust emissions during sampling, characterized in that, include: The sampling head is mounted on the frame, a dust cover is installed in the upper cavity of the sampling head, and a protective cover is installed in the hollow area around the sampling head.

2. The train sampler as described in claim 1, which can reduce coal dust emission during sampling, is characterized in that, The frame is equipped with a screw conveyor and a crusher. One end of the screw conveyor is connected to the sampling head, and the other end is connected to the crusher through a pipeline.

3. A train sampler as described in claim 2, characterized in that, A coal retaining curtain is installed at the receiving hopper of the crusher.

4. A train sampler as described in claim 3, characterized in that, A sample collector is installed below the discharge port of the crusher.

5. A train sampler as described in claim 1, characterized in that, Counterweights are installed on both sides of the bottom of the frame.

6. A train sampler as described in claim 1, characterized in that, The dust cover is 43cm high.

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