Novel tank top aluminum hydroxide sampling device and use method thereof

Abstract

The invention discloses a novel groove top aluminum hydroxide sampling device and a using method, the novel groove top aluminum hydroxide sampling device comprises a spoon body and a spoon handle, one end of the spoon handle is provided with a handle, the other end of the spoon handle is provided with a hanging hole, and the spoon body is hung on the hanging hole of the spoon handle through a metal wire; the inner diameter of the hanging hole is larger than the diameter of the metal wire, and the handle is of a hollow structure. By adopting the lightweight design, the weight of the sampling spoon is obviously reduced, the labor intensity of operators is reduced, and the working efficiency is improved. By optimizing the structures of the spoon body and the spoon handle and the spoon opening which is specially designed, sampling is more accurate, the reliability of a detection result is improved, material residues can be reduced through the design of the large opening of the spoon body, the sampling accuracy is guaranteed, and meanwhile the cleaning cost and time are saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sampling devices, and particularly relates to a new type of aluminum hydroxide sampling device for the top of a trough and its usage method. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the process of chemical production, sampling aluminum hydroxide is a key link in quality control and production optimization. The decomposition tank is a key device in the production of alumina by the Bayer process, which is used to precipitate aluminum hydroxide crystals from sodium aluminate solution, and its internal conditions have a direct impact on the precipitation and properties of aluminum hydroxide. Therefore, during the production process of aluminum hydroxide, it is necessary to sample the aluminum hydroxide rate to detect the purity, particle size distribution, and impurity content of aluminum hydroxide to ensure compliance with downstream processes. By sampling and analyzing the decomposition rate, the process parameters of the decomposition tank can be adjusted.

[0004] When sampling aluminum hydroxide, the existing sampling devices have the following problems:

[0005] 1. The ordinary sampling spoon not only has a complex structure, but also usually uses heavy materials to ensure strength and corrosion resistance, resulting in a relatively large overall weight. Since the decomposition tank is relatively deep, operators are prone to fatigue after long-term use, and the operation is inconvenient, which affects work efficiency and poses a safety risk at the same time.

[0006] 2. The materials in the decomposition tank have characteristics such as corrosiveness and high temperature. The ordinary sampling spoon is not corrosion-resistant and high-temperature-resistant, has a short service life, and frequent replacement increases production costs and labor intensity.

[0007] 3. The conventional sampling spoon is difficult to clean, and materials are easily attached to the surface of the spoon body. The remaining materials will interfere with the accuracy of subsequent sampling, and cleaning consumes a large amount of time and manpower. Summary of the Invention

[0008] The purpose of the present invention is to provide a new type of aluminum hydroxide sampling device for the top of a trough and its usage method. The spoon handle and the spoon body are designed in a split form, and the spoon body is suspended and connected to the spoon handle through a metal wire, so that the spoon body can swing flexibly and is suitable for use in deep troughs or narrow spaces.

[0009] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0010] In a first aspect, an embodiment of the present invention provides a new type of aluminum hydroxide sampling device for the top of a trough, including a spoon body and a spoon handle. One end of the spoon handle is provided with a handle, and the other end is provided with a suspension hole. The spoon body is suspended on the suspension hole of the spoon handle through a metal wire; the inner diameter of the suspension hole is larger than the diameter of the metal wire, and the handle adopts a hollow structure.

[0011] As a further technical solution, the handle is made of stainless steel, and the spoon body is made of corrosion-resistant and high-temperature-resistant plastic material.

[0012] As a further technical solution, an anti-slip thread is provided on the wall surface of the spoon handle, the handle is circular, and the handle and the spoon handle are provided as an integral structure.

[0013] As a further technical solution, the spoon body is barrel-shaped, and the edge of the spoon mouth is smoothed.

[0014] As a further technical solution, the axis of the hanging hole is arranged perpendicular to the axis of the spoon handle.

[0015] As a further technical solution, the spoon handle is made of a telescopic rod.

[0016] As a further technical solution, the spoon body is provided with two mounting holes, which are symmetrically arranged, and the two mounting holes are respectively fixed to the two ends of the metal wire.

[0017] As a further technical solution, the metal wire is bent at a middle position so that the bent metal wire has a V-shaped structure, and the bent portion of the metal wire is located at the hanging hole.

[0018] As a further technical solution, a nut is welded to the end of the spoon handle, and the threaded hole of the nut serves as a hanging hole.

[0019] In a second aspect, an embodiment of the present invention provides a method for using a novel tank top aluminum hydroxide sampling device, comprising:

[0020] When sampling, insert the spoon through the handle into the appropriate position in the decomposition tank to take samples;

[0021] When transferring materials, hold the spoon handle to remove the spoon body from the decomposition tank, and pour the material into the sample cylinder by tilting the spoon body;

[0022] After cleaning the spoon body, store it with the spoon body facing upwards.

[0023] The beneficial effects of the above embodiments of the present invention are as follows:

[0024] The novel sampling device for aluminum hydroxide at the top of the tank provided by the present invention has a split design for the spoon handle and the spoon body. The spoon handle and the spoon body are connected by a metal wire suspension, enabling the spoon body to swing flexibly, which is suitable for use in deep tanks or narrow spaces. Additionally, since there are solid particles and certain corrosiveness in the decomposition tank, the present invention sets a suspension hole at the end of the spoon handle, with the inner diameter of the suspension hole much larger than the diameter of the metal wire, ensuring that it can still maintain good flexibility after long-term use. Compared with the existing method of rotatably connecting the spoon body and the spoon handle using a mechanical structure, the structure is simple and there is no problem of inflexible rotation caused by blockage and corrosion of solid particles.

[0025] For the novel sampling device for aluminum hydroxide at the top of the tank provided by the present invention, the spoon handle is made of stainless steel, and the spoon body is made of a plastic material that is corrosion-resistant and heat-resistant. At the same time, the spoon handle has a hollow structure, reducing the overall weight while ensuring strength and toughness. Compared with a sampling device made entirely of metal materials, it can minimize the overall weight of the sampling device to the greatest extent. Compared with a sampling device made entirely of plastic materials, the stainless steel spoon handle can avoid deformation of the plastic spoon handle caused by forces at both ends.

[0026] For the novel sampling device for aluminum hydroxide at the top of the tank provided by the present invention, the spoon body uses a bucket-shaped container with a large opening, flexible connection, facilitating rapid sampling under the blowing state of the sample at the sampling port on the top of the tank. Moreover, the capacity can reach the required sample amount at one time. After the sample is taken up, it can be quickly transferred to the sample cylinder, avoiding sample precipitation and contamination. The design of the large opening is more convenient for pouring the sample clean at one time, avoiding sample residue in the spoon.

[0027] For the novel sampling device for aluminum hydroxide at the top of the tank provided by the present invention, the spoon body can be conveniently and stably suspended at a designated position. It is not only convenient to use but also ensures that the spoon body is in a suspended state when not in use, which can prevent the spoon body from contacting other objects, avoiding contamination of the spoon body, and also preventing loss, damage, or affecting the cleanliness of the working area caused by random placement. Description of the Drawings

[0028] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0029] Figure 1 is the front view of the novel sampling device for aluminum hydroxide at the top of the tank of the present invention when in use;

[0030] Figure 2 is the front view of the novel sampling device for aluminum hydroxide at the top of the tank of the present invention when in storage;

[0031] Figure 3 is the side view of the connection between the spoon body and the metal wire of the present invention.

[0032] The schematic diagram is only for illustration purposes;

[0033] Among them, 1 is the spoon handle; 101 is the handle; 102 is the hanging hole; 2 is the spoon body; 201 is the mounting hole; 3 is the wire. Specific embodiments

[0034] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0035] Example 1

[0036] In a typical embodiment of the present invention, as Figures 1-3 shown, a new type of sampling device for top - slot aluminum hydroxide is provided, including a spoon body 2 and a spoon handle 1. One end of the spoon handle 1 is provided with a handle 101, and the other end is provided with a hanging hole 102. The spoon body 2 is suspended on the hanging hole 102 of the spoon handle 1 through a wire 3; the inner diameter of the hanging hole 102 is larger than the diameter of the wire 3, and the handle 101 adopts a hollow structure.

[0037] The new type of sampling device for top - slot aluminum hydroxide of the present invention adopts a separated design of the spoon body 2 and the spoon handle 1. The spoon body 2 is suspended on the hanging hole 102 of the spoon handle 1 through a wire 3. The inner diameter of the hanging hole 102 is larger than the diameter of the wire 3, enabling the spoon body 2 to swing flexibly to adapt to sampling requirements at different angles.

[0038] Specifically, since the spoon body 2 and the spoon handle 1 are connected by suspension rather than rigid fixation, the operator can adjust the angle of the spoon body 2 according to the actual sampling environment, avoiding the problem of limited operation of traditional fixed - type sampling spoons in deep grooves or narrow spaces. For example, when the sampling port at the top of the slot is small or the fluidity of the material is poor, the spoon body 2 can droop naturally to ensure accurate sampling and reduce the situation of material splashing or incomplete sampling.

[0039] The spoon handle 1 adopts a hollow structure, significantly reducing the overall weight. Compared with traditional solid - metal sampling spoons, it can reduce the weight by 30% - 50%, significantly reducing the fatigue of the operator, especially suitable for long - time continuous sampling operations. In addition, the suspended design of the spoon body makes it easy to pour after sampling, reducing material residue and improving work efficiency. In addition, the spoon body 2 can be disassembled separately, facilitating thorough cleaning and avoiding the influence of residual materials on the accuracy of subsequent sampling. The wire 3 suspension structure is simple and not prone to accumulating dirt. Compared with traditional welding or bolt - fixing methods, it is easier to maintain and replace.

[0040] In this embodiment, the handle 101 is made of stainless steel, and the spoon body 2 is made of a plastic material that is corrosion-resistant and high-temperature resistant. The stainless steel spoon handle 1 (such as 304 or 316L) can withstand the strong alkaline corrosion of the aluminum hydroxide slurry, avoiding the problems of easy rusting and deformation of ordinary carbon steel spoon handles 1. The plastic spoon body 2 (such as PTFE or PP) is not only corrosion-resistant but also can withstand high-temperature environments of 80 - 120 °C. Compared with a metal spoon body 2, it is less likely to be adhered to by materials, extending the service life by 3 - 5 times.

[0041] In addition, the density of the plastic spoon body 2 is much lower than that of metal, further reducing the overall weight and making the operation more labor-saving. At the same time, the plastic material will not scald the operator in a high-temperature environment, enhancing safety. The plastic spoon body 2 will not introduce metal ions (such as iron, aluminum, etc.), ensuring that the composition of the sampled material is not contaminated, and it is particularly suitable for the production inspection of high-purity aluminum hydroxide.

[0042] In this embodiment, anti-slip threads are provided on the wall surface of the spoon handle 1. The handle 101 is circular, and the handle 101 and the spoon handle 1 are provided as an integral structure.

[0043] The anti-slip threads (such as knurling or grooves) increase the friction force, enabling a firm grip even when wearing gloves and avoiding slippage during the sampling process. Even if the operator's hand slips while holding the spoon handle 1, due to the presence of the circular handle 101, the spoon handle 1 will not fall into the decomposition tank. In addition, the one-piece molding design avoids the risk of fracture that may occur in welding or bolt connection, ensuring the reliability of the spoon handle 1 under high-frequency use.

[0044] In this embodiment, the spoon body 2 is barrel-shaped, and the edge of the spoon mouth of the spoon body 2 is smoothed; since the aluminum hydroxide sampling is usually above 300 ml, the barrel-shaped design can provide a larger volume, and a single sampling can meet the detection requirements; the smooth edge (such as arc transition or polishing) makes the material pour more thoroughly, reducing the residue by more than 90%, ensuring that the next sampling is not contaminated. In addition, the large-opening spoon body 2 can quickly intercept representative samples under the condition of the decomposition tank being in a blowing state, avoiding the problem of uneven sampling caused by small openings due to turbulence.

[0045] In this embodiment, the axis of the suspension hole 102 is perpendicular to the axis of the spoon handle 1, which can make the suspension more stable, avoid excessive swinging of the spoon body 2 resulting in material spillage, and at the same time facilitate hanging and storage, saving space. [[ID=1,7]]

[0046] As a preferred solution, the spoon handle 1 can be made of a telescopic member. The telescopic spoon handle 1 can adjust the length according to the depth of the tank to adapt to different working conditions, and the telescopic member directly adopts an existing structure.

[0047] In this embodiment, two mounting holes 201 are provided on the spoon body 2. The two mounting holes 201 are respectively fixed to the two ends of the metal wire 3, and the two mounting holes 201 are symmetrically arranged. The design of the double mounting holes 201 of the present invention, combined with the symmetrical fixation of the metal wire 3, keeps the spoon body 2 in a horizontal state all the time, avoiding tilting or tipping caused by the shift of the center of gravity. For example, when extracting high-viscosity aluminum hydroxide slurry from a deep groove, the double fixing points can effectively disperse the force, preventing the spoon body 2 from suddenly tipping over and causing material spillage or scalding of personnel. The two mounting holes 201 are respectively located on both sides of the spoon body 2, and the pulling force of the metal wire 3 is evenly distributed, avoiding deformation of the spoon body 2 or tearing of the hole position caused by excessive single-point force. The metal wire 3 is fixed through the mounting holes 201 without welding or bolt locking. The operator can disassemble the spoon body 2 by hand for deep cleaning or replacement, greatly reducing the maintenance time. In addition, if the spoon body 2 is worn due to long-term use, it can be replaced separately without discarding the entire device, reducing the use cost.

[0048] In this embodiment, the metal wire 3 is bent into a V-shaped structure, and the bent part of the metal wire 3 is located at the suspension hole 102, which can ensure sampling. The elastic characteristic of the V-shaped metal wire 3 enables it to automatically return to the upright position after the spoon body 2 is tilted by an external force, avoiding excessive shaking caused by inertia during the dumping of materials. For example, when the operator quickly lifts the sampling spoon out of the tank, the V-shaped structure can buffer the swinging energy, ensuring the smooth transfer of the material to the sample cylinder and reducing the risk of splashing. The V-shaped bent part is naturally buckled in the suspension hole 102 without additional fixing parts (such as snap rings or nuts), realizing "ready to use with a single hanging". By adjusting the opening angle of the V-shaped metal wire 3, it can be adapted to spoon bodies 2 with different volumes (such as 500 mL or 1000 mL specifications), enhancing the expandability of the device.

[0049] In a specific implementation manner of this embodiment, a nut can be welded to the end of the spoon handle 1, and the threaded hole of the nut serves as the suspension hole 102. Or the end of the spoon handle 1 can be bent to form the suspension hole 102.

[0050] Embodiment 2

[0051] In a typical implementation manner of the present invention, a method for using a new type of aluminum hydroxide sampling device on the top of the tank is provided, including:

[0052] During sampling, insert the spoon body 2 into the appropriate position in the decomposition tank through the spoon handle 1 for sampling;

[0053] During material transfer, hold the spoon handle 1 to take out the spoon body 2 from the decomposition tank, and pour the material into the sample cylinder by tilting the spoon body 2;

[0054] After cleaning the spoon body 2, store the spoon body 2 upward.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A new type of sampling device for aluminum hydroxide at the top of the tank, characterized in that It includes a spoon body and a spoon handle. One end of the spoon handle is provided with a handle, and the other end is provided with a suspension hole. The spoon body is suspended on the suspension hole of the spoon handle by a metal wire; the inner diameter of the suspension hole is larger than the diameter of the metal wire, and the handle adopts a hollow structure.

2. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that, The spoon handle is made of stainless steel, and the spoon body is made of a plastic material that is corrosion-resistant and heat-resistant.

3. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that, Anti-slip threads are provided on the wall surface of the spoon handle. The handle is circular, and the handle and the spoon handle are integrally structured.

4. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that The spoon body is barrel-shaped, and the edge of the spoon mouth of the spoon body is smoothed.

5. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that The axis of the suspension hole is perpendicular to the axis of the spoon handle.

6. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that, The spoon handle is made of a telescopic member.

7. The novel sampling device for aluminum hydroxide at the tank top as described in claim 1, characterized in that, Two mounting holes are provided on the spoon body. The two mounting holes are symmetrically arranged, and the two ends of the metal wire are respectively fixed to the two mounting holes.

8. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 7, characterized in that, The middle position of the metal wire is bent so that the bent metal wire forms a V-shaped structure, and the bent part of the metal wire is located at the suspension hole.

9. The novel sampling device for aluminum hydroxide at the top of the groove according to claim 1, characterized in that, A nut is welded to the end of the spoon handle, and the threaded hole of the nut serves as the suspension hole.

10. A method for using the novel sampling device for aluminum hydroxide at the top of the groove according to any one of claims 1-9, characterized in that, It includes: During sampling, insert the spoon body into the decomposition tank through the spoon handle to a suitable position for sampling; During material transfer, hold the spoon handle to take out the spoon body from the decomposition tank, and pour the material into the sample cylinder by tilting the spoon body; After cleaning the spoon body, store the spoon body upward.

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