Fuel tank and fine powder transport system

Abstract

The utility model discloses a fuel tank and fine powder transportation system relates to fuel tank weighing technical field, wherein, fuel tank includes mounting bracket, tank body, weighing mechanism and stop gear, the tank body is suspended in the mounting bracket, and is set up with the cavity for storing fine powder, the weighing mechanism is located the mounting bracket, and is connected with tank body, is used for the tank body weighing, the stop gear is located the mounting bracket, and is along the circumference of tank body setting, is used for along the horizontal direction to the tank body limit. The utility model aims at improving the accuracy of the data obtained.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank weighing technology, and in particular to a fuel tank and fine powder transportation system. Background Technology

[0002] In industries such as chemical, energy, and metallurgy, fine solid powders such as pulverized coal, petroleum coke, and mineral powder are commonly used as fuels or reducing agents. During production, the fine powders are first stored in a large silo and then transported through pipelines to fuel tanks until the fuel tanks contain enough fine powder for the reaction. Therefore, the fuel tanks must be weighed continuously during fuel transportation. Once the weight of the fine powder in the fuel tanks reaches a preset value, the discharge valve of the large silo is immediately closed, and feeding is stopped. Simultaneously, the weight of the fuel tanks must also be monitored in real time when discharging fine powder to obtain the weight of the fine powder participating in the reaction.

[0003] In the existing technology, the fuel tank is suspended on the mounting frame, and a weighing sensor is installed at the connection between the mounting frame and the fuel tank to weigh the fuel tank, thereby obtaining the total weight of the fuel tank and the fine powder fuel inside.

[0004] However, with this setup, when the fine powder in the bulkhead flows at high speed towards the fuel tank, the powder impacts the inner wall of the tank, causing it to shift horizontally. At this point, the outer wall of the fuel tank may come into contact with the mounting bracket, which applies a supporting force. This results in the load cell reading being lower than the actual weight, leading to an error. Utility Model Content

[0005] The main objective of this invention is to propose a fuel tank and fine powder transportation system, which aims to improve the accuracy of the acquired data.

[0006] To achieve the above objectives, this utility model proposes a fuel tank, the fuel tank comprising: Mounting rack; The tank body is suspended from the mounting frame and has a cavity for storing fine powder; A weighing mechanism, wherein the weighing mechanism is mounted on the mounting frame and connected to the tank body, is used to weigh the tank body; and A limiting mechanism is provided on the mounting frame and along the periphery of the tank body, for limiting the tank body in the horizontal direction.

[0007] In one embodiment, the mounting bracket has a weighing platform and a through hole, the through hole being formed in the weighing platform; The weighing mechanism is located on the weighing platform and is arranged along the periphery of the through hole. The tank body passes through the through hole, and the side wall of the tank body is formed with a hanging ear. The hanging ear is supported by the weighing mechanism, and the limiting mechanism is arranged along the periphery of the through hole.

[0008] In one embodiment, the limiting mechanism is disposed on the inner wall of the through hole and flexibly connected to the tank body in the horizontal direction, and the limiting mechanism has free travel in the vertical direction.

[0009] In one embodiment, the radial stiffness of the limiting mechanism in the horizontal direction is no greater than 50 N / mm.

[0010] In one embodiment, the free travel of the limiting mechanism in the vertical direction is within ±10 mm.

[0011] In one embodiment, the top of the tank is provided with a feed inlet communicating with the cavity, and the feed inlet is softly connected to the main tank.

[0012] In one embodiment, the weighing mechanism includes a plurality of weighing mechanisms arranged along the periphery of the tank.

[0013] In one embodiment, the fuel tank further includes a junction box, which is connected to a plurality of the weighing mechanisms for obtaining the weight of the tank.

[0014] In one embodiment, the bottom of the tank is provided with a discharge port and an air inlet communicating with the cavity. The discharge port is used to discharge fine powder, and the air inlet is used to supply compressed air to the cavity.

[0015] This utility model also proposes a fine powder transport system, which includes a fuel tank, the fuel tank comprising: Mounting rack; The tank body is suspended from the mounting frame and has a cavity for storing fine powder; A weighing mechanism, wherein the weighing mechanism is mounted on the mounting frame and connected to the tank body, is used to weigh the tank body; and A limiting mechanism is provided on the mounting frame and along the periphery of the tank body, for limiting the tank body in the horizontal direction.

[0016] In this invention, the tank is suspended from the mounting frame only by a weighing mechanism. The weighing mechanism can weigh vertically, while a limiting mechanism is fixed to the mounting frame along the periphery of the tank and limits the tank's position horizontally. When material is discharged from the hopper, the high-speed fine powder impacts the inner wall of the tank, generating a horizontal thrust. At this time, the limiting mechanism prevents the tank from shifting horizontally. Because the tank remains vertically suspended and is not supported by the mounting frame, the value measured by the weighing mechanism is always equal to the actual weight of the tank and the fine powder inside, ensuring that the reading matches the actual weight. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the fuel tank provided by this utility model.

[0019] Explanation of icon numbers: 100. Fuel tank; 1. Mounting bracket; 11. Weighing platform; 12. Through hole; 2. Tank body; 21. Hanging lug; 22. Feed inlet; 23. Cavity; 3. Weighing mechanism; 4. Limiting mechanism; 5. Junction box.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] In industries such as chemical, energy, and metallurgy, fine solid powders such as pulverized coal, petroleum coke, and mineral powder are commonly used as fuels or reducing agents. During production, the fine powders are first stored in a large silo and then transported through pipelines to fuel tanks until the fuel tanks contain enough fine powder for the reaction. Therefore, the fuel tanks must be weighed continuously during fuel transportation. Once the weight of the fine powder in the fuel tanks reaches a preset value, the discharge valve of the large silo is immediately closed, and feeding is stopped. Simultaneously, the weight of the fuel tanks must also be monitored in real time when discharging fine powder to obtain the weight of the fine powder participating in the reaction.

[0025] In the existing technology, the fuel tank is suspended on the mounting frame, and a weighing sensor is installed at the connection between the mounting frame and the fuel tank to weigh the fuel tank, thereby obtaining the total weight of the fuel tank and the fine powder fuel inside.

[0026] However, with this setup, when the fine powder in the bulkhead flows at high speed towards the fuel tank, the powder impacts the inner wall of the tank, causing it to shift horizontally. At this point, the outer wall of the fuel tank may come into contact with the mounting bracket, which applies a supporting force. This results in the load cell reading being lower than the actual weight, leading to an error.

[0027] This invention proposes a fuel tank 100 and a fine powder transportation system, aiming to improve the accuracy of the acquired data.

[0028] Please see Figure 1 In one embodiment of the present invention, the fuel tank 100 includes a mounting frame 1, a tank body 2, a weighing mechanism 3, and a limiting mechanism 4. The tank body 2 is suspended on the mounting frame 1 and has a cavity 23 for storing fine powder. The weighing mechanism 3 is located on the mounting frame 1 and connected to the tank body 2 for weighing the tank body 2. The limiting mechanism 4 is located on the mounting frame 1 and is arranged along the periphery of the tank body 2 for limiting the tank body 2 in the horizontal direction.

[0029] In this embodiment, the top of the tank 2 is connected to the main silo via a pipe to transport fine powder from the main silo to the tank 2. The weighing mechanism 3 is fixedly installed on the mounting, and the tank 2 is directly supported on the weighing structure's support surface, thus allowing the total weight of the tank 2 and the fine powder to be directly obtained. The limiting mechanism 4 is arranged on the outer periphery of the tank 2 and fixedly connected to the mounting bracket 1 to limit the horizontal movement of the tank 2.

[0030] Understandably, when the large silo discharges material, the high-speed fine powder impacts the inner wall of tank 2, generating a horizontal thrust. At this time, the limiting mechanism 4 can prevent tank 2 from undergoing horizontal displacement. Since tank 2 always remains vertical and is not supported by the mounting frame 1, the value measured by the weighing mechanism 3 is always equal to the actual weight of tank 2 and the fine powder inside, ensuring that the reading is consistent with the actual weight.

[0031] Optionally, the weighing mechanism 3 can be a weighing sensor, such as a shear beam weighing sensor, an S-type tension sensor, or a ring force sensor.

[0032] In one embodiment, the mounting bracket 1 has a weighing platform 11 and a through hole 12, the through hole 12 being formed in the weighing platform 11; the weighing mechanism 3 is provided on the weighing platform 11 and is arranged along the periphery of the through hole 12; the tank body 2 passes through the through hole 12, and the side wall of the tank body 2 has a hanging ear 21, the hanging ear 21 being supported by the weighing mechanism 3; and the limiting mechanism 4 is arranged along the periphery of the through hole 12.

[0033] It should be noted that the specific structure of the mounting frame 1 is not limited here. It can be assembled from a welded steel frame, a cast base or modular aluminum profiles. It can also be designed as a gantry type, column type or hanging type, as long as the weighing platform 11 formed therein is parallel to the horizontal plane after assembly. The tilt angle of the weighing platform 11 should be controlled to be no more than 0.1° to meet the weighing requirements of the weighing mechanism 3.

[0034] In this embodiment, the side wall of the tank 2 is provided with a hanging lug 21, which overlaps the weighing mechanism 3 so that the tank 2 itself is suspended in the through hole 12. Multiple limiting mechanisms 4 are provided, arranged circumferentially along the tank 2 and equidistant from the side wall of the tank 2, thereby preventing horizontal displacement of the tank 2.

[0035] Optionally, the lug 21 can be a frame connected to the side wall of the tank 2, with a bearing surface at the bottom of the frame that matches the weighing mechanism 3. Optionally, a shim can also be provided on the bearing surface to prevent the frame from sliding relative to the weighing mechanism 3.

[0036] In one embodiment, the weighing mechanism 3 includes a plurality of weighing mechanisms 3 arranged along the periphery of the tank body 2.

[0037] In this embodiment, three weighing mechanisms 3 are configured, and the three weighing mechanisms 3 are evenly distributed along the circumference of the tank body 2, with an included angle of 120° between them to form an equilateral triangle layout. This ensures that the tank body 2 is subjected to balanced forces in the circumferential direction, avoids eccentric loads, reduces lateral moments caused by uneven forces at a single point, and thus improves weighing accuracy. At the same time, three hanging ears 21 are provided on the side wall of the tank body 2, and the hanging ears 21 are respectively connected to the corresponding weighing mechanism 3 to realize a three-point suspension structure.

[0038] Optionally, the weighing mechanism 3 can also be set to four, five or more. In order to ensure balanced force, the multiple weighing mechanisms 3 are arranged at equal intervals along the circumference of the tank body 2.

[0039] In one embodiment, the limiting mechanism 4 is disposed on the inner wall of the through hole 12 and is flexibly connected to the tank body 2 in the horizontal direction, and the limiting mechanism 4 has free travel in the vertical direction.

[0040] In this embodiment, a flexible connecting element is used to constrain the limiting mechanism 4 and the tank 2. When the tank 2 is horizontally displaced due to high-speed feeding or airflow impact, the flexible element first undergoes elastic deformation, converting kinetic energy into potential energy, thereby gently absorbing the impact energy and limiting the horizontal displacement of the tank 2, avoiding the instantaneous collision force caused by traditional rigid blocks. The flexible connecting element can be a rubber sleeve, an elastic pin, or a bellows, etc.

[0041] Understandably, as the weight of the fine powder inside tank 2 changes, and as temperature changes cause tank 2 to expand or contract, relative displacement will occur between tank 2 and the limiting mechanism 4 in the vertical direction. Therefore, the flexible connection needs to reserve a certain sliding gap to allow tank 2 to move freely in the vertical direction, preventing the limiting mechanism 4 from applying a component force to tank 2 in the vertical direction, thereby ensuring that tank 2 is fully supported by the weighing mechanism 3.

[0042] In one embodiment, the radial stiffness of the limiting mechanism 4 in the horizontal direction is no greater than 50 N / mm.

[0043] In this embodiment, the limiting mechanism 4 moves 1 mm in the horizontal direction, and the applied reaction force does not exceed 50 N. This ensures rapid suppression of the horizontal displacement of the tank 2, while also preventing the reaction force from being too large and avoiding the introduction of additional horizontal force that could cause the weighing signal to drift.

[0044] In one embodiment, the free travel of the limiting mechanism 4 in the vertical direction is within ±10mm.

[0045] In this embodiment, the limiting mechanism 4 is provided with a free travel of ±10mm in the vertical direction to compensate for the vertical displacement of the tank 2 during loading or unloading and temperature changes.

[0046] In one embodiment, the top of the tank body 2 is provided with a feed inlet 22 that communicates with the cavity 23, and the feed inlet 22 is softly connected to the large silo.

[0047] In this embodiment, the feed inlet 22 is connected to the discharge outlet of the large silo using a canvas hose or corrugated pipe. The hose only transmits the material and does not transmit axial force, so that the vibration, thermal displacement or installation error of the large silo will not act on the tank 2 through the pipe, further ensuring that the weighing mechanism 3 only detects the weight of the tank 2 itself and the fine powder inside.

[0048] In one embodiment, the fuel tank 100 further includes a junction box 5, which is connected to a plurality of weighing mechanisms 3 to obtain the weight of the tank 2.

[0049] In this embodiment, the junction box 5 has a built-in high-precision signal conditioning circuit, which can summarize the voltage signals output by multiple weighing mechanisms 3 to obtain the weight of the tank 2. At the same time, the junction box 5 can also supply power to multiple weighing mechanisms 3.

[0050] In one embodiment, the bottom of the tank 2 is provided with a discharge port and an air inlet communicating with the cavity 23. The discharge port is used to discharge fine powder, and the air inlet is used to deliver compressed air to the cavity 23.

[0051] In this embodiment, the air inlet at the bottom of the tank 2 continuously supplies compressed air into the cavity 23 so that the fine powder is in a fluidized state during storage, making it convenient for the fine powder to be discharged from the outlet.

[0052] This utility model also proposes a fine powder transportation system, which includes a large warehouse, a fuel tank 100 and a reaction device. The specific structure of the fuel tank 100 is as described in the above embodiments. Since this fine powder transportation system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0053] The large storage compartment is used to store solid fine fuel powder and is flexibly connected to the fuel tank 100. Simultaneously, the reaction device is flexibly connected to the outlet of the fuel tank 100 to allow the solid fine fuel powder to react within the reaction device. Understandably, the flexible connection avoids interference with the weighing mechanism 3, thereby improving weighing accuracy.

[0054] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A fuel tank, characterized in that, The fuel tank includes: Mounting rack; The tank body is suspended from the mounting frame and has a cavity for storing fine powder; A weighing mechanism, wherein the weighing mechanism is mounted on the mounting frame and connected to the tank body, is used to weigh the tank body; and A limiting mechanism is provided on the mounting frame and along the periphery of the tank body, for limiting the tank body in the horizontal direction.

2. The fuel tank as described in claim 1, characterized in that, The mounting bracket has a weighing platform and a through hole, and the through hole is formed in the weighing platform; The weighing mechanism is located on the weighing platform and is arranged along the periphery of the through hole. The tank body passes through the through hole, and the side wall of the tank body is formed with a hanging ear. The hanging ear is supported by the weighing mechanism, and the limiting mechanism is arranged along the periphery of the through hole.

3. The fuel tank as described in claim 2, characterized in that, The limiting mechanism is located on the inner wall of the through hole and is flexibly connected to the tank body in the horizontal direction, and the limiting mechanism has free travel in the vertical direction.

4. The fuel tank as described in claim 3, characterized in that, The radial stiffness of the limiting mechanism in the horizontal direction is no greater than 50 N / mm.

5. The fuel tank as described in claim 3, characterized in that, The free travel of the limiting mechanism in the vertical direction is within ±10mm.

6. The fuel tank as claimed in claim 1, characterized in that, The top of the tank is provided with a feed inlet that communicates with the cavity, and the feed inlet is softly connected to the main tank.

7. The fuel tank according to any one of claims 1 to 6, characterized in that, The weighing mechanism includes multiple weighing mechanisms, which are arranged along the periphery of the tank.

8. The fuel tank as claimed in claim 7, characterized in that, The fuel tank also includes a junction box, which is connected to multiple weighing mechanisms to obtain the weight of the tank.

9. The fuel tank according to any one of claims 1 to 6, characterized in that, The bottom of the tank is provided with a discharge port and an air inlet that communicate with the cavity. The discharge port is used to discharge fine powder, and the air inlet is used to supply compressed air into the cavity.

10. A fine powder transport system, characterized in that, Includes the fuel tank as described in any one of claims 1 to 9.

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