Sampling device and sampling method for ship loader tripper car

Abstract

The invention relates to a sampling device for a ship loader tripper car, and belongs to the technical field of port loading and unloading mechanical equipment. Sampling assemblies are arranged in a layered manner by using a space between a tail vehicle portal platform and a belt conveyor rack; wherein the first-stage sampler is mounted on a belt rack to intercept a material full-section sub-sample, and the sub-sample falls into a sample preparation unit on a tail vehicle portal platform through an inclined hopper; the sample preparation unit conveys materials to a crusher at a low speed through a material receiving belt conveyor to be crushed, division sampling is completed through a division belt conveyor and a secondary division sampler, and samples are stored in a sample collector. And remaining materials are sealed and discharged back to the tail car belt conveyor through the spiral conveyor and the bucket elevator. According to the sampling device, material sampling, sample preparation, sample collection and loss-free recovery of excess materials are achieved under the moving working condition, and the sampling problem that no fixed installation space exists in the ship-to-ship direct installation process is solved.

Description

Technical Field

[0001] The present application relates to the technical field of port loading and unloading machinery and equipment, and in particular to a sampling device and a sampling method for a tail car of a ship loading machine. Background Art

[0002] With the development of bulk cargo loading and unloading technology in ports, the water-to-water direct loading process (or ship-to-ship direct loading process) has emerged. The characteristic of this technology is that after the material (such as coal) is unloaded from the source ship through the ship unloader, it is directly transferred to the ship loader via a belt conveyor system and loaded onto the target ship without being transferred through the rear yard, thereby greatly improving the loading and unloading efficiency and reducing the transfer cost.

[0003] In the relevant technology, for materials that need to be sampled and analyzed (such as coal), the conventional solution is to place the fixed sampling device on the fixed facilities that the materials must pass through, such as inside the transfer building in front of the rear yard, or on a fixed section belt conveyor that is not interfered with by the operation of large mobile equipment; this method is feasible and effective in the traditional "unloading → yard → loading" process flow (that is, the material needs to pass through the transfer building and fixed belt conveyor) because the layout space is relatively sufficient and there are fewer installation restrictions.

[0004] However, the above-mentioned fixed sampling device arrangement has significant limitations when facing the emerging water-to-water transfer and direct loading process:

[0005] Because the material transport path for this process is simplified to "ship → ship unloader → (mobile) belt conveyor → ship loader → ship," the entire belt conveyor system is tightly attached to the mobile ship unloader and loader. This results in a lack of fixed, independent installation space along the conveyor line that isn't disturbed by the movement of equipment. Traditional fixed sampling devices struggle to find suitable locations, making it impossible to sample and analyze materials during the direct loading process. Summary of the Invention

[0006] Based on this, it is necessary to provide a sampling device and sampling method for the tail car of the ship loader to address the above problems, integrate the sampling device into the tail car of the ship loader, and arrange the sampling device in the middle of the tail car of the ship loader for sampling without increasing the lifting height of the tail car belt conveyor and the length of the tail car.

[0007] A sampling device for a tail car of a ship loader, comprising a tail car assembly and a sampling assembly integrated in the middle of the tail car assembly;

[0008] The tail car assembly includes a tail car walking mechanism, a tail car gantry platform, a tail car belt conveyor frame and a tail car belt conveyor, and an installation space is formed between the tail car gantry platform and the tail car belt conveyor frame;

[0009] The sampling assembly comprises:

[0010] The primary sampler is installed on the tail car belt conveyor rack, and the sampling head thereof is suspended above the tail car belt conveyor;

[0011] The inclined hopper is located below the primary sampler;

[0012] The sequentially connected material receiving belt conveyor, the crusher, the dividing belt conveyor, the secondary dividing sampler and the sample collector are all arranged on the tail car portal platform;

[0013] The excess material returning unit is composed of a spiral conveyor and a bucket elevator in series, the feeding port of the bucket elevator is connected with the discharging port of the spiral conveyor, and the discharging port of the bucket elevator is connected with the tail car belt conveyor.

[0014] In one of the embodiments, the hopper axis of the primary sampler forms an angle of 30°-60° with the horizontal plane, and the rotation track of the sampling head is perpendicular to the material flow direction of the tail car belt conveyor.

[0015] In one of the embodiments, the secondary dividing sampler comprises a rotary dividing head and a sample retaining pipe, and the lower end of the sample retaining pipe extends into the sample collecting barrel of the sample collector.

[0016] In one of the embodiments, in the excess material returning unit, the feeding port of the spiral conveyor is connected with the discarded material end of the dividing belt conveyor, and the discharging port is connected with the feeding port of the bucket elevator.

[0017] In one of the embodiments, the sampling head of the primary sampler is of a rotary scraper type structure, and the rotation radius thereof covers the full cross-sectional width of the tail car belt conveyor.

[0018] In one of the embodiments, the crusher is a pair of roller type crusher, and the feeding port height is lower than the discharging end of the material receiving belt conveyor.

[0019] In one of the embodiments, the sample collector comprises a sample collecting barrel, and the top opening of the sample collecting barrel is directly opposite to the sample retaining pipe of the secondary dividing sampler.

[0020] In one of the embodiments, the sampling head of the primary sampler is configured to be driven by a stepping motor, and is reset to the initial position after completing 360° rotation to collect a sub-sample.

[0021] In one of the embodiments, an electrical control cabinet is further included, which is installed on the tail car portal platform, and is internally provided with a PLC controller for controlling the operation of each component.

[0022] On the other hand, the application further provides a sampling method for a ship loader tail car, which is performed by the above sampling device and comprises the following procedures:

[0023] Sampling: when the tail car belt conveyor conveys the material, the sampling head of the primary sampler rotates to intercept a full cross-sectional sub-sample, and the sub-sample is slid into the material receiving belt conveyor through the inclined hopper;

[0024] The sample is prepared, the material is conveyed to the crusher by the receiving belt conveyor, and after crushing, the material falls to the reduction belt conveyor and is reduced by the secondary reduction sampler;

[0025] The sub-sample after reduction by the secondary reduction sampler falls into the collector through the sample retention tube of the secondary reduction sampler;

[0026] The excess material is returned and discharged by the screw conveyor, which pushes the material to the bucket elevator, which vertically lifts the material and returns it to the main material flow of the tail car belt conveyor.

[0027] The above sampling device and sampling method for the ship loader tail car, by utilizing the space between the tail car gantry platform and the belt conveyor rack to arrange the sampling assembly in layers, the primary sampler is integrated in the belt conveyor rack, the sampling head is suspended above the tail car belt conveyor, without occupying additional ground space; the receiving belt conveyor, the crusher, the reduction belt conveyor, the secondary reduction sampler and the collector are fixed on the tail car gantry platform, using the equipment structure as the installation basis, completely avoiding the dependence of the traditional fixed sampling device on independent installation site, realizing sampling on the mobile tail car;

[0028] The present application also includes the following advantages:

[0029] The screw conveyor inlet receives the reduced discharge material, the bucket elevator discharge port is connected to the tail car belt conveyor, and the bucket elevator vertically lifts the discharge material to the height of the tail car belt conveyor; the discharge material is conveyed by the screw conveyor, lifted by the bucket elevator, and returned to the main belt, forming a closed return system, avoiding the dust flying and material spilling caused by the traditional open discharge, and meeting the environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0031] Figure 2 It is a front view of the sampling assembly of the present application.

[0032] Figure 3 It is a side view of Figure 2 .

[0033] Figure 4 It is a process flow diagram of the middle sampling of the tail car belt conveyor of the present application.

[0034] Wherein: 100, tail car assembly; 200, sampling assembly; 300, electrical control cabinet;

[0035] 110, tail car traveling mechanism; 120, tail car gantry platform; 130, tail car belt conveyor rack; 140, tail car belt conveyor;

[0036] 210, a bucket elevator; 220, a primary sampler; 230, a chute; 240, a receiving belt conveyor; 250, a crusher; 260, a splitter belt conveyor; 270, a screw conveyor; 280, a secondary splitter sampler; 290, a collector. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners according to other embodiments, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0040] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" or similar description of the first feature to the second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0043] Referring to Figures 1-3 , Figure 1 The structure of the sampling device for the ship loader tail car in the embodiment of the present application is shown.

[0044] The present application provides a sampling device for a ship loader tail car, comprising a tail car assembly 100, a sampling assembly 200 and an electrical control cabinet 300.

[0045] Referring to Figure 1 In the present embodiment, the tail car assembly 100 comprises a tail car walking mechanism 110, a tail car gantry platform 120 welded above the walking mechanism, and a tail car belt conveyor support 130 supporting the tail car belt conveyor 140; wherein the tail car gantry platform 120 and the tail car belt conveyor support 130 form a three-dimensional mounting space, and the sampling assembly 200 is integrated in layers in the space.

[0046] Referring to Figures 1-3 In the present embodiment, the structure of the sampling assembly is:

[0047] The primary sampler 220 is fixed to the side of the tail car belt conveyor support 130 by bolts, and its rotating scraper sampling head is suspended directly above the tail car belt conveyor 140, with a rotary radius covering the full cross-sectional width of the belt, and the sampling head axis is inclined at an angle of 30°-60° to the horizontal plane, preferably 45°; the rotary track is perpendicular to the flow. The sampling head is driven by a stepping motor, and after each 360° rotation, a full cross-sectional subsample is taken and the sampling head is automatically reset;

[0048] The inclined hopper 230 is welded below the primary sampler 220 to receive the falling sub-sample;

[0049] The receiving belt conveyor 240 is obliquely installed on the tail car gantry platform 120, and the inlet thereof is aligned with the outlet of the inclined hopper 230, and the belt speed is set to 0.3 m / s;

[0050] The crusher 250 adopts a double-roller structure, and the inlet thereof is lower than the height of the discharge end of the receiving belt conveyor 240, and the material is crushed by gravity;

[0051] The dividing belt conveyor 260 is horizontally arranged below the crusher 250 to convey the crushed material to the secondary dividing sampler 280;

[0052] The rotating dividing head of the secondary dividing sampler 280 divides the material, and the sample tube vertically extends into the sample collection barrel of the sample collector 290;

[0053] The rejected material falls into the screw conveyor 270 through the end of the dividing belt conveyor 260, and the screw conveyor 270 is obliquely installed (preferably at an inclination angle of 30°), and the outlet thereof is connected to the inlet of the bucket elevator 210;

[0054] The bucket elevator 210 vertically lifts the rejected material, and the outlet thereof is aligned with the upstream of the material flow of the tail car belt conveyor 140.

[0055] In the embodiment, the electrical control cabinet 300 is installed on the side of the tail car gantry platform 120, and a PLC controller is arranged therein, and each execution unit is connected through a cable.

[0056] Please continue to refer to Figure 4 , in actual work, the work flow of the application is as follows:

[0057] Sampling, when the tail car belt conveyor 140 conveys the material, the sampling head of the primary sampler 220 rotates to intercept a full-section sub-sample, and the sub-sample slides into the receiving belt conveyor 240 through the inclined hopper 230;

[0058] Sample preparation, the receiving belt conveyor 240 conveys the material at a low speed to the crusher 250 for crushing, and the crushed material falls onto the dividing belt conveyor 260, and is divided by the secondary dividing sampler 280;

[0059] Sample collection, the sub-sample divided by the secondary dividing sampler 280 falls into the sample collector 290 through the sample tube of the secondary dividing sampler 280;

[0060] Remaining material return, the rejected material is pushed to the bucket elevator 210 by the screw conveyor 270, and is returned to the main material flow of the tail car belt conveyor 140 after vertical lifting.

[0061] In summary, the structure of the application is reasonable, the sampling assembly 200 is arranged on the upper and lower layers of the tail car gantry platform 120, wherein the first sampler 220 is independently fixed to the belt conveyor rack 130, and the middle space of the tail car is maximally utilized.

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0063] The above-mentioned embodiments only express several implementation manners of the application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, several modifications and improvements can be made, which belong to the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. A sampling device for a tail car of a ship loading machine, characterized in that: It comprises a tail vehicle assembly (100) and a sampling assembly (200) integrated in the middle of the tail vehicle assembly (100); The tail car assembly (100) comprises a tail car running mechanism (110), a tail car gantry platform (120), a tail car belt conveyor frame (130) and a tail car belt conveyor (140), wherein an installation space is formed between the tail car gantry platform (120) and the tail car belt conveyor frame (130); The sampling assembly (200) comprises: A primary sampler (220) is mounted on the tail car belt conveyor frame (130), with its sampling head suspended above the tail car belt conveyor (140); An inclined hopper (230) is located below the primary sampler (220); The material receiving belt conveyor (240), crusher (250), reduction belt conveyor (260), secondary reduction sampler (280) and sample collector (290) connected in sequence are all arranged on the tailgate platform (120); The residual material return unit is composed of a screw conveyor (270) and a bucket elevator (210) connected in series, wherein the feed port of the bucket elevator (210) is connected to the discharge port of the screw conveyor (270), and the discharge port of the bucket elevator (210) is connected to the tail car belt conveyor (140).

2. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: The hopper axis of the first-stage sampler (220) is inclined at an angle of 30° to 60° to the horizontal plane, and the rotation trajectory of the sampling head is perpendicular to the material flow direction of the tail car belt conveyor (140).

3. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: The secondary reduction sampler (280) comprises a rotary reduction head and a sample retention tube, wherein the lower end of the sample retention tube extends into the sample collection barrel of the sample collector (290).

4. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: In the residual material return unit, the feed port of the screw conveyor (270) receives the discarded material end of the reduction belt conveyor (260), and the discharge port is connected to the feed port of the bucket elevator (210).

5. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: The sampling head of the primary sampler (220) is a rotating scraper structure, and its rotation radius covers the full cross-sectional width of the tail car belt conveyor (140).

6. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: The crusher (250) is a double-roll crusher, and the height of the feed port is lower than the discharge end of the receiving belt conveyor (240).

7. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: The sample collector (290) comprises a sample collecting barrel, the top opening of which is directly opposite to the sample retaining tube of the secondary reduction sampler (280).

8. The sampling device for the tail car of a ship loading machine according to claim 2, characterized in that: The sampling head of the primary sampler (220) is configured to be driven by a stepping motor and resets to an initial position after completing a 360° rotation and collecting a sub-sample.

9. The sampling device for the tail car of a ship loading machine according to claim 1, characterized in that: It also includes an electrical control cabinet (300), which is installed on the tailgate platform (120) and has a built-in PLC controller for controlling the operation of various components.

10. A sampling method for a tail car of a ship loading machine, characterized in that: Sampling is performed using the sampling device according to any one of claims 1 to 9, comprising the following steps: Sampling: When the tail car conveyor (140) transports the material, the sampling head of the first-stage sampler (220) rotates to intercept the full-section sub-sample, and the sub-sample slides into the material receiving conveyor (240) through the inclined hopper (230); Sample preparation: the material receiving belt conveyor (240) conveys the material to the crusher (250) for crushing, and the crushed material falls to the reduction belt conveyor (260) and is reduced by the secondary reduction sampler (280); Collecting samples, the sub-samples divided by the secondary dividing sampler (280) fall into the sample collecting device (290) through the sample retaining tube of the secondary dividing sampler (280); The remaining material is returned, and the discarded material is pushed to the bucket elevator (210) by the screw conveyor (270), and then vertically lifted and returned to the main material flow of the tail car belt conveyor (140).

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