Vehicle-mounted fully automatic sampling system

Abstract

The present invention belongs to the technical field of sampling equipment, and relates to a sampling, sample preparation and analysis and detection system for bulk materials. The vehicle-mounted mobile fully automatic sampling and preparation system comprises: a vehicle chassis; a sampling device, which is connected to a control system and realizes sampling of the object to be tested through the control system; a sample preparation device, which receives the sample collected by the sampling device and performs sample preparation on the sample; a control system, which is installed on the vehicle chassis and controls the operation and parameter setting of each device. The vehicle-mounted mobile fully automatic sampling and preparation system of the present invention has the advantages of convenient mobility, simple operation, and various control methods. It can realize full-section sampling, crushing, reduction, and integrated sample collection, and has the advantages of high sampling efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sampling equipment and relates to a sampling, sample preparation and analysis detection system for bulk bulk materials. Background Art

[0002] The sampling system is a device used for sampling and sample preparation of bulk materials in the testing and inspection of ports, electricity, chemical industry, geology, metallurgy, cement, analytical testing services, scientific research and other industry departments. The traditional manual sampling method is easily affected by objective factors such as the selection of sampling points, sampling quality, sample mixing and reduction, and is prone to introduce large sampling and sample preparation deviations. The sampling process requires workers to climb stacks or get on the car to collect samples, which poses a great safety hazard. In order to ensure the safety of the sampling process, samples can usually only be taken on the surface of trains, cars or stacks, which will result in poor representativeness of the sampled products and low controllability of the sampling process. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides an automatic sampling system with high automation, high sampling efficiency and high safety.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a vehicle-mounted mobile fully automatic sampling system, comprising:

[0005] Automobile chassis;

[0006] The sampling device is connected to the control system and realizes the sampling of the object to be tested through the control system;

[0007] A sample preparation device, receiving the sample collected by the sampling device and performing sample preparation on the sample;

[0008] The control system is installed on the automobile chassis and connected with the sampling device and the sample preparation device to control the operation and parameter setting of each device.

[0009] As a further improvement of the present invention, the sampling device comprises a hydraulic sampling arm and a sampler, the hydraulic sampling arm is connected to the control system, and the sampler is connected to the hydraulic sampling arm.

[0010] As a further improvement of the present invention, the sampler includes a grab sampler and a spiral sampler; the grab sampler or the spiral sampler is fixed to the front end of the hydraulic sampling arm by a fixing pin.

[0011] As a further improvement of the present invention, the spiral sampler is mainly composed of a spiral sampling drill bit, a rotating shaft, and a hydraulic spiral driving mechanism; the upper end of the spiral sampling drill bit is connected to the lower end of the rotating shaft through a sleeve; a rotating shaft outer cylinder is provided on the outside of the rotating shaft, and a connecting sleeve is provided on the outside of the sleeve; the connecting sleeve is connected to the lower end of the rotating shaft outer cylinder and is fixed by a fixing sleeve and bolts; the hydraulic spiral driving mechanism is installed at the upper end of the rotating shaft.

[0012] As a further improvement of the present invention, the sample preparation device includes an automatic feeding device, an automatic shrinking device, a sample crushing device, and an automatic sample collecting device; the automatic feeding device is installed above the main frame by bolts; the automatic shrinking device is installed downstream of the automatic feeding device, and its shrinking incision corresponds horizontally and vertically to the discharge port of the upstream automatic feeding device; the material crushing device is installed above the automobile chassis, and its feed port is connected to the sample retention incision of the automatic shrinking device through a stainless steel chute; the automatic sample collecting device is suspended below the automobile chassis, and its feed port is connected to the discharge port below the sample crushing device through a stainless steel chute.

[0013] As a preferred embodiment of the present invention, the vehicle-mounted mobile fully automatic sampling system of the present invention also includes a sample discarding device, which is installed above the vehicle chassis and connected to the sample discarding incision of the automatic shrinking device through a stainless steel chute.

[0014] Compared with the prior art, the vehicle-mounted mobile fully automatic sampling system of the present invention has the following beneficial effects: (1) Flexible transfer and application to different types of work sites

[0015] The movable structure allows for flexible transfer to various types of work sites for sampling and collection, enabling shallow sampling, deep sampling, and full-section sampling. The sampling has a high height and a large range, and is particularly suitable for manual sampling situations where there is no mechanized sampling equipment or where mechanized sampling is inconvenient.

[0016] (2) Automation of the sampling process

[0017] The PLC is controlled by a touch screen computer to realize fully automatic, semi-automatic or manual operation of the sampling process, integrating sampling, crushing, reduction and collection. The sampling process is automatically completed by randomly selecting sampling points based on the set sampling point number, depth and other parameters.

[0018] (3) Short sampling period

[0019] A complete sampling cycle of the mobile sampling vehicle only takes 300 seconds. Compared with the current manual sampling, the mobile sampling vehicle has the outstanding characteristics of scientific accuracy, time-saving and labor-saving, and high work efficiency.

[0020] (4) Can be used normally in harsh environments

[0021] The temperature in northern my country is low in winter, and it is common for ore and coal to have thick frozen layers in winter. In response to this special working condition, a heavy-duty spiral sampler can be used as the sampler, and special steel and special welding technology can be used to ensure that the sampling vehicle can work normally even in extremely harsh environments (-30°C), which is very suitable for the sampling requirements of ore and coal in northern my country during the severe winter.

[0022] (5) Fully enclosed automatic sample preparation

[0023] After sample preparation is completed, the automatic sample collection device will automatically seal the sample and seal the sample in time after the sample barrel is full, reducing water loss and other contamination caused by long exposure time of the sample, ensuring the accuracy of the test sample.

[0024] (6) Record the entire sampling process

[0025] Equipped with a monitoring camera system, the sampling operation can be monitored through the on-board LCD screen, and the whole process can be intelligently controlled. During sampling, there is a camera at the sampling sub-sampling point, which can record and save the image during sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the vehicle-mounted mobile fully automatic sampling system of the present invention;

[0027] Figure 2 is an overall structural diagram of another embodiment;

[0028] Figure 3 It is a schematic diagram of the structure of the spiral sampler;

[0029] Figure 4 is a schematic diagram of a spiral sampling drill;

[0030] Figure 5 yes Figure 3 A partial enlarged view. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] A vehicle-mounted mobile fully automatic sampling system according to one embodiment of the present invention is as follows: Figure 1As shown in FIG. 2 , the vehicle chassis 101 is mainly composed of a hydraulic sampling arm 102, an automatic feeding device 104, an automatic dividing device 105, a material crushing device 106, a sample collecting device 107, a sample discarding device 108, a power supply device 109, and a control system 110. The control system 110 controls the operation and parameter setting of each device in the system. The hydraulic sampling arm 2 realizes 360-degree full rotation and telescopic operation through the hydraulic control system.

[0033] A sampler is installed at the front end of the hydraulic sampling arm 102. The sampler of the present invention is designed and installed with two types of samplers that meet the sampling standards of relevant materials (iron ore, coal) (ISO3082-2009 Iron Ore - Sampling and Sample Preparation Procedure, ISO13909-2016 Coal - Sampling and Sample Preparation Procedure), namely, a grab sampler 103 and a spiral sampler 111. The grab sampler 103 or the spiral sampler 111 is fixed to the front end of the hydraulic sampling arm 102 by a fixing pin, and the sampling grab or spiral sampling is realized by the control system 110.

[0034] like Figure 3 , 4 As shown in Figure 5, in one embodiment of the present invention, the spiral sampler 111 is mainly composed of a spiral sampling drill bit 1, a drill bit connecting sleeve 2, a bearing 3, a pressure cover 4, a fixed parallel key 5, a nut 6, a fixed sleeve 7, a drill pipe connecting sleeve 8, a fixed nut 9, a sleeve 10, a rotating shaft outer cylinder 11, a rotating shaft 12, and a hydraulic spiral drive mechanism 13.

[0035] The upper section of the spiral sampling drill 1 is provided with a bearing 3, and a pressure cap 4 is provided above the bearing 3. The upper end of the spiral sampling drill 1 is connected to the lower end of the rotating shaft 12 through a sleeve 10, and a drill bit connecting sleeve 2 is provided outside the upper section of the spiral sampling drill 1 and the sleeve 10, and a rotating shaft outer cylinder 11 is provided outside the rotating shaft 12. A fixed parallel key 5 is provided inside the drill bit connecting sleeve 2, and the fixed parallel key 5 is connected and fixed with the lower end keyway of the rotating shaft outer cylinder 11. A fixed sleeve 7 is provided above the drill bit connecting sleeve 2, and the fixed sleeve 7 is connected to the drill bit connecting sleeve 2 by a bolt 6. Above the fixed sleeve 7, a connecting sleeve 8 is provided, and the connecting sleeve 8 is fixed to the lower part of the rotating shaft outer cylinder 11 by a screw 9, so that the drill bit connecting sleeve 2 and the rotating shaft outer cylinder 11 are connected together. The lower end of the rotating shaft outer cylinder 11 is pressed against the pressure cap 4, thereby limiting the axial movement of the bearing 3.

[0036] The rotating shaft 12 is connected to the hydraulic screw driving mechanism 13 through a pin. The hydraulic screw driving mechanism 13 is connected to the control system 110, and under the control of the control system 110, the rotating shaft 12 is driven to rotate, driving the spiral sampling drill 1 to complete sampling.

[0037] During the rotating sampling process of the spiral sampler 111, the drill bit connecting sleeve 2, the fixing sleeve 7, the connecting sleeve 8 and the rotating shaft outer cylinder 11 play a protective role and do not rotate.

[0038] In the embodiment of the present invention, the spiral sampling drill bit 1 is composed of a middle drill rod and a spiral groove arranged on the drill rod.

[0039] The sample obtained by the sampler is sent to the sample preparation device through the hydraulic sampling arm for preliminary sample preparation. Figure 1 As shown in Figure 2, the sample preparation equipment includes an automatic feeding device 4, an automatic shrinking device 5, a sample crushing device 6, and an automatic sample collecting device 7. The automatic feeding device 4 is installed on the upper part of the main frame of the system equipment by bolts; the automatic shrinking device 5 is installed downstream of the automatic feeding device 4, and its shrinking cutout corresponds horizontally and vertically to the discharge port of the upstream automatic feeding device 4. The sample crushing device 6 is installed above the automobile chassis 101, and its feed port is connected to the sample retention cutout of the automatic shrinking device 5 through a stainless steel chute.

[0040] The sample put into the automatic feeding device 4 is shaped by the automatic feeding device 4 and then sent to the automatic shrinking device 5 at a uniform speed to shrink the sample. The shrunken sample enters the sample crushing device 6 through the chute to be crushed.

[0041] like Figure 1 As shown, the automatic sample collecting device 7 is suspended below the automobile chassis 101 by installing bolts, and the upper feed port of the automatic sample collecting device 7 is connected to the lower discharge port of the sample crushing device 6 through a stainless steel chute. The sample crushed by the sample crushing device 6 enters the stainless steel sample collecting barrel in the automatic sample collecting device 7 through the chute and is sealed.

[0042] The sample discarding device 8 is installed above the automobile chassis 101 and is connected to the sample discarding cutout of the automatic shrinking device 5 through a stainless steel chute. After the shrinking and discarding samples fall into the sample discarding device 8 through the chute, the sample discarding device 8 operates to return the samples to the sampling stack. In some embodiments of the present invention, the sample discarding device 8 is a telescopic sample discarding belt conveyor.

[0043] like Figure 1 As shown, the power supply device 109 is a generator set, and a generator set with a corresponding load is selected according to the power load of the entire system.

[0044] The vehicle-mounted mobile fully automatic sampling system of the embodiment of the present invention has the following working process:

[0045] 1. Select a suitable sampler according to the material to be sampled; connect the sampler to the hydraulic sampling arm;

[0046] 2. The control system controls the hydraulic sampling arm to move to the top of the material pile to be sampled, and controls the sampler to collect samples;

[0047] 3. The portion samples obtained by the sampler are sent to the sample preparation device through the hydraulic sampling arm for preliminary sample preparation;

[0048] 4. After sample preparation is completed, the samples will be sealed and stored, and the excess samples will be sent back to the yard through the sample disposal device.

[0049] The vehicle-mounted mobile fully automatic sampling system of the embodiment of the present invention is mainly suitable for sampling and preparing large bulk materials such as ore and coal. Compared with manual sampling, it has the following advantages:

[0050] The mechanized sampling operation of the material pile is realized. It replaces the manual climbing of the material pile for sampling. It ensures the effective implementation of the mechanical sampling work according to the regulations, and does not affect the material pile operation. It has a very significant advantage over manual sampling.

[0051] In order to meet the requirements of port safety production operations, manual sampling operations basically have to wait until the unloading (unloading) and stacking work is completed before entering the material yard for sampling operations. This cannot meet the sampling coverage rate in a larger range. At the same time, due to the limitations of manual sampling tools and factors such as safety production, manual sampling is usually limited to sampling operations at the root of the pile below 2.5 meters in height. The vehicle-mounted mobile fully automatic sampling and preparation system of the present invention is far higher and better than manual sampling in terms of sampling quality, sampling points and the distribution structure of sampling areas.

Claims

1. The vehicle-mounted fully automatic sampling system is characterized by: include: Automobile chassis; The sampling device is connected to the control system and realizes the sampling of the object to be tested through the control system; A sample preparation device, receiving the sample collected by the sampling device and performing sample preparation on the sample; A control system, installed on the automobile chassis, controls the operation and parameter setting of each device; The sampling device comprises a hydraulic sampling arm and a sampler, wherein the hydraulic sampling arm is connected to the control system, and the sampler is connected to the hydraulic sampling arm; The sampler is fixed to the front end of the hydraulic sampling arm by a fixing pin, and the sampler is a spiral sampler; the spiral sampler is mainly composed of a spiral sampling drill, a rotating shaft, and a hydraulic spiral driving mechanism; the upper end of the spiral sampling drill is connected to the lower end of the rotating shaft by a sleeve; a rotating shaft outer cylinder is provided on the outside of the rotating shaft, and a connecting sleeve is provided on the outside of the sleeve; the connecting sleeve is connected to the lower end of the rotating shaft outer cylinder and fixed by a fixing sleeve and bolts; the hydraulic spiral driving mechanism is installed at the upper end of the rotating shaft; during the rotating sampling process of the spiral sampler, the drill connecting sleeve, the fixing sleeve, the connecting sleeve and the rotating shaft outer cylinder play a protective role and do not rotate; The sample preparation device comprises an automatic feeding device, an automatic shrinking device, a sample crushing device, and an automatic sample collecting device; the automatic feeding device is installed on the top of the main frame by bolts; the automatic shrinking device is installed downstream of the automatic feeding device, and its shrinking incision corresponds horizontally and vertically to the discharge port of the upstream automatic feeding device; the material crushing device is installed above the chassis of the automobile, and its feeding port is connected to the sample retention incision of the automatic shrinking device through a stainless steel chute; the automatic sample collecting device is suspended below the chassis of the automobile, and its feeding port is connected to the discharge port below the sample crushing device through a stainless steel chute.

2. The vehicle-mounted mobile fully automatic sampling system according to claim 1 is characterized in that: It also includes a sample discarding device, which is installed above the automobile chassis and is connected to the sample discarding incision of the automatic shrinking device through a stainless steel chute.

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