Water sieve device for laboratory solid particle size analysis

Abstract

The utility model discloses a water screen device for analyzing the particle size of solid particles in a laboratory, which relates to the technical field of chemical experiment determination and comprises a water collecting tank, a screen, a screen fixing disc and a control box, wherein an L-shaped supporting hook is arranged at the top of the water collecting tank, the screen fixing disc is fixed to the top of the water collecting tank through the L-shaped supporting hook, and the top of the screen is fixed to the lower portion of the screen fixing disc; a water inlet pipe is arranged in the middle of the screen fixing disc; the screen is of a cylindrical structure with an opening in the upper part, and screen holes are formed in the cylinder wall and the cylinder bottom; the number of the screens is multiple, the different screens are different in size, the screens are arranged in a layered and nested mode, screen holes of the screens are arranged from large to small and from the inner layer to the outer layer, and a sample to be screened is placed in from the innermost layer of screen. The control box is arranged on the upper portion of the outer wall of the water collecting pool and used for controlling the inclination angle of the L-shaped supporting hooks. According to the utility model, the technical problems of low efficiency and low measurement data precision of manual water screening experiments in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of chemical experimental determination technology, specifically a water sieve device for laboratory solid particle size analysis. Background Technology

[0002] In chemical experiments, sieving machines are often used to determine the particle size of solid particles. For easily adhering solid particles, only water sieving tests can be performed, using hydraulic washing to separate solid particles of different sizes. Existing water sieving tests generally rely on manual operation, which is inefficient, wasteful of water resources, labor-intensive, and results in low accuracy of measurement data. Utility Model Content

[0003] The purpose of this invention is to provide a water sieve device for laboratory solid particle size analysis in order to solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, this utility model provides a water sieve device for laboratory solid particle size analysis, comprising: a water collection tank, a sieve, a sieve fixing plate, and a control box; wherein, an L-shaped support hook is provided at the top of the water collection tank, the sieve fixing plate is fixed to the top of the water collection tank by the L-shaped support hook, and the top of the sieve is fixed below the sieve fixing plate; a water inlet pipe is provided in the middle of the sieve fixing plate; the sieve is a cylindrical structure with an open top, and sieve holes are provided on both the cylindrical wall and the bottom of the cylindrical tube; there are multiple sieves of different sizes, and the multiple sieves are nested in layers, with the sieve holes arranged from large to small and from the inner layer to the outer layer, and the sample to be screened is placed into the innermost sieve; the control box is located on the upper part of the outer wall of the water collection tank and is used to control the tilt angle of the L-shaped support hook.

[0005] Furthermore, the water collection pool has a cylindrical structure, and the bottom of the water collection pool has a sloping structure.

[0006] Furthermore, a drainage pipe is installed at the bottom of the water collection tank, and a drainage valve is installed on the drainage pipe.

[0007] Furthermore, a sealing gasket is provided at the connection between the screen fixing plate and the water inlet pipe.

[0008] Furthermore, the top of the screen fixing plate is provided with a handle, and the bottom is fixed with a plurality of concentrically arranged external threaded discs; the top inner side of the screen is provided with an internal thread, and the screen is installed at the bottom of the screen fixing plate through the cooperation of the internal thread and the external threaded discs.

[0009] Furthermore, the L-shaped support hook is a round rod, the free end of the horizontal rod of the L-shaped support hook is connected to the drive motor installed inside the control box, the vertical rod of the L-shaped support hook is an externally threaded screw, the screen fixing plate is provided with fixing holes on both sides, the vertical rod of the L-shaped support hook passes through the fixing holes and is fixed by a nut.

[0010] Furthermore, the bottom of the water inlet pipe is provided with multiple sieve holes.

[0011] Furthermore, the control box has a hollow metal ring structure.

[0012] Furthermore, it also includes a placement rack for placing the screen fixing plate.

[0013] Furthermore, the placement frame includes a circular base and a plurality of support rods fixed on the circular base, the plurality of support rods having the same height; the screen fixing plate is placed horizontally at the top of the plurality of support rods.

[0014] This invention provides a water sieve device for laboratory solid particle size analysis. Compared with the prior art, it increases the sieving area of ​​the sieve and improves the sieving efficiency; it adds automatic water inlet, automatic sieving and automatic drainage functions, improving the degree of automation; and it uses hydraulic sieving and washing to separate solid particles, resulting in more thorough separation and improved accuracy of measurement data. This alleviates the technical problems of low efficiency and low accuracy of measurement data in existing manual water sieving experiments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A three-dimensional view of a water sieve device for laboratory solid particle size analysis provided in this embodiment of the present invention;

[0017] Figure 2 A side view of a water sieve device for laboratory solid particle size analysis provided in an embodiment of this utility model;

[0018] Figure 3 A three-dimensional view of a sieve provided for an embodiment of this utility model;

[0019] Figure 4 A side view of a sieve provided for an embodiment of this utility model;

[0020] Figure 5 A top view of a sieve provided for an embodiment of this utility model;

[0021] Figure 6 A top view of the upper surface of a screen fixing plate provided in an embodiment of this utility model;

[0022] Figure 7 A top view of the lower surface of a screen fixing plate provided in an embodiment of this utility model;

[0023] Figure 8 A schematic diagram illustrating the connection between a screen fixing plate and a screen provided in an embodiment of this utility model;

[0024] Figure 9 A schematic diagram of the structure of a placement rack provided in an embodiment of this utility model;

[0025] Figure 10 A schematic diagram of a screen tilting state provided for an embodiment of this utility model;

[0026] Figure 11 This is a schematic diagram of a screen returning to its normal position, provided for an embodiment of the present utility model.

[0027] In the diagram: 1. Water collection tank, 2. Screen, 3. Screen fixing plate, 4. Control box, 5. L-shaped support hook, 6. Water inlet pipe, 7. Fixing hole, 8. Drainage pipe, 9. Drainage valve, 10. Sealing gasket, 11. Handle, 12. External threaded disc, 13. Placement rack, 131. Circular base, 132. Support rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 protection scope of the present utility model.

[0029] Figure 1 This is a three-dimensional view of a water sieve device for laboratory solid particle size analysis according to an embodiment of the present invention. Figure 2 This is a side view of a water sieve device for laboratory solid particle size analysis according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the device includes: a water collection tank 1, a screen 2, a screen fixing plate 3, and a control box 4.

[0030] Specifically, an L-shaped support hook 5 is installed on the top of the water collection tank 1, and the screen fixing plate 3 is fixed to the top of the water collection tank 1 by the L-shaped support hook 5. The top of the screen 2 is fixed below the screen fixing plate 3; a water inlet pipe 6 is installed in the middle of the screen fixing plate 3.

[0031] Figure 3 This is a three-dimensional view of a sieve according to an embodiment of the present invention. Figure 4 This is a side view of a sieve according to an embodiment of the present utility model. Figure 5 This is a top view of a sieve according to an embodiment of the present utility model. Figure 3-5 As shown, screen 2 is a cylindrical structure with an open top, and screen holes are provided on both the cylinder wall and the bottom of the cylinder.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, there are multiple sieves 2, and the sizes of the different sieves 2 are different. The multiple sieves 2 are nested in layers, and the sieve holes of the multiple sieves 2 are arranged from large to small and from the inner layer to the outer layer. The sample to be screened is put into the innermost sieve 2.

[0033] The control box 4 is located on the upper part of the outer wall of the water collection tank 1 and is used to control the tilt angle of the L-shaped support hook 5.

[0034] Specifically, such as Figure 1 As shown, the control box 4 is a hollow metal ring structure, which contains a control module, an actuating motor, switches and other modules to control the tilt angle and time of the L-shaped support hook 5, as well as the water inlet and outlet processes.

[0035] Specifically, the L-shaped support hook 5 is a round rod. The free end of the horizontal rod of the L-shaped support hook 5 is connected to the drive motor inside the control box 4. The vertical rod of the L-shaped support hook 5 is an external threaded screw. Fixing holes 7 are provided on both sides of the screen fixing plate 3. The vertical rod of the L-shaped support hook 5 passes through the fixing holes 7 and is fixed by a nut.

[0036] Specifically, such as Figure 1 and Figure 2 As shown, the water collection tank 1 has a cylindrical structure, and the bottom of the water collection tank 1 has a sloping structure.

[0037] Specifically, a drainage pipe 8 is installed at the bottom of the water collection tank 1, and a drainage valve 9 is installed on the drainage pipe 8. The connection port of the drainage pipe 8 is located at the bottom of the sloping structure at the bottom of the water collection tank 1, so that the collected liquid can be discharged from the drainage pipe 8.

[0038] Specifically, the inlet pipe 6 and the outlet pipe 8 are used for inputting and discharging screening water, respectively. The inlet pipe 6 is used to spray water into the screen 2 to wash solids, and the outlet pipe 8 is used to discharge the liquid collected in the collection tank 1 during the screening process.

[0039] Specifically, such as Figure 2 As shown, a sealing gasket 10 is provided at the connection between the screen fixing plate 3 and the water inlet pipe 6.

[0040] Figure 6 This is a top view of the upper surface of a screen fixing plate according to an embodiment of the present invention. Figure 7 This is a top view of the lower surface of a screen fixing plate according to an embodiment of the present invention. Figure 8 This is a schematic diagram illustrating the connection between a screen fixing plate and a screen according to an embodiment of the present utility model. Figure 6-8 As shown, the top of the screen fixing plate 3 is provided with a handle 11, and the bottom is fixed with a plurality of concentrically arranged external threaded discs 12; the top inner side of the screen 2 is provided with an internal thread, and the screen 2 is installed at the bottom of the screen fixing plate 3 through the cooperation of the internal thread and the external threaded discs 12.

[0041] Specifically, such as Figure 8 As shown, multiple sieve holes are provided at the bottom of the water inlet pipe 6.

[0042] Specifically, the screen fixing plate 3 is used to install and fix the screen 2 and close the upper opening of the screen 2. The screen fixing plate 3 is a disc-shaped stainless steel plate with three evenly distributed fixing holes 7; the upper part is provided with two handles 11 for taking out and placing the screen fixing plate 3; the lower part is provided with three external threaded discs 12 for connecting with the screen 2; and a water inlet pipe 6 and a sealing gasket 10 are provided in the center.

[0043] In this embodiment of the utility model, three L-shaped support hooks 5 are provided, each corresponding to one of the three fixing holes 7.

[0044] In one optional embodiment of this utility model, the device provided by this utility model further includes a placement rack 13 for placing the screen fixing plate 3.

[0045] Figure 9 This is a structural schematic diagram of a placement rack according to an embodiment of the present utility model. Figure 9 As shown, the placement rack 13 includes a circular base 131 and multiple support rods 132 fixed on the circular base 131, with the multiple support rods 132 having the same height; the screen fixing plate 3 is placed horizontally at the top of the multiple support rods 132.

[0046] Specifically, the placement rack 13 is used to place the screen fixing plate 3 during the installation and removal of the screen 2. For example... Figure 9 As shown, there are three support rods 132, which are evenly distributed on the circumference of the circular base 131. The angle between two adjacent support rods 132 and the center of the circle is 120°.

[0047] Figure 10This is a schematic diagram of a screen tilting state according to an embodiment of the present utility model. Figure 11 This is a schematic diagram of a screen returning to its normal position according to an embodiment of the present utility model. Figure 10 and Figure 11 As shown in the figure, the working process of the water sieve device for laboratory solid particle size analysis provided by this utility model embodiment is as follows:

[0048] (1) Install the sieve: Select a sieve 2 with a suitable aperture according to the experimental needs, weigh the sample, and add it to the sieve 2. (If determining the particle size distribution of solid particles, select multiple sieves and install them from the inside out, from large to small, according to the experimental needs, with the sample placed in the innermost large aperture sieve.) Place the sieve fixing plate 3 on the sieve fixing plate holder 13 (e.g., Figure 9 (As shown) Screw the internal thread of screen 2 into the external thread disk 12 (as shown). Figure 8 (As shown).

[0049] (2) Install the screen fixing plate: Hold the upper handle 11 of the screen fixing plate 3, align the fixing hole 7 on the screen fixing plate 3 with the upper screw of the L-shaped support hook 5, gently insert it, and tighten the nut. Align the water inlet pipe 6 with the water inlet pipe through hole and insert it into the screen 2.

[0050] (3) Soaking and rinsing: Turn on the switch on the control box 4. At this time, water enters through the water inlet pipe 6 and is sprayed through the water nozzle to rinse the sample. The control module controls the three L-shaped support hooks 5 to tilt at a certain angle and then reset, driving the screen fixing plate 3 to move, so that the screen 2 rotates to sieve the internal solid particle sample (such as...). Figure 10 , Figure 11 (As shown). When the water level in the collection tank 1 rises to the inner thread position of the screen 2, the water inlet pipe 6 stops supplying water, and the drain pipe 8 opens to discharge the liquid from the collection tank 1. During this step, as the water level rises, the solid sample undergoes a soaking and rinsing process within the screen 2, which is more conducive to the separation of small particles. The soaking and rinsing process can be set to 1-2 times as needed.

[0051] (4) Screening and washing: After the liquid in the collection tank 1 is drained, water is introduced through the inlet pipe 6. The control module still controls the three L-shaped support hooks 5 to tilt at a certain angle in sequence and then reset, driving the screen fixing plate 3 to move, so that the screen 2 rotates to screen the internal solid particle samples (such as... Figure 10 , Figure 11 (as shown), until the water discharged from drain pipe 8 is clear and transparent.

[0052] (5) Remove the sieve and transfer the sample: Pull out the water inlet pipe 6, unscrew the nut, lift the handle 11, remove the sieve fixing plate 3 and place it on the placement rack 13, unscrew the sieve 2, rinse the sieve 2 with water, and transfer the remaining sample on the sieve 2 to the container to be filled. This completes the water sieving experiment steps.

[0053] As described above, this utility model provides a water sieve device for laboratory solid particle size analysis, which has the following technical advantages compared with the prior art:

[0054] (1) It increases the screening area of ​​the screen and improves screening efficiency;

[0055] (2) Automatic water inlet, automatic screening and automatic drainage functions have been added, which improves the degree of automation;

[0056] (3) The solid particles are separated by hydraulic screening and washing, which makes the separation more thorough and improves the accuracy of the measurement data.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water sieve device for laboratory solid particle size analysis, characterized in that, include: The water collection tank, screen, screen fixing plate, and control box; among which, The top of the water collection tank is provided with an L-shaped support hook, and the screen fixing plate is fixed to the top of the water collection tank by the L-shaped support hook. The top of the screen is fixed to the bottom of the screen fixing plate. A water inlet pipe is provided in the middle of the screen fixing plate. The screen is a cylindrical structure with an open top, and the cylinder wall and bottom are provided with screen holes; there are multiple screens with different sizes, and the multiple screens are nested in layers. The screen holes of the multiple screens are arranged from large to small and from the inner layer to the outer layer. The sample to be screened is put into the innermost screen. The control box is located on the upper part of the outer wall of the water collection tank and is used to control the tilt angle of the L-shaped support hook.

2. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: The water collection tank has a cylindrical structure, and the bottom of the water collection tank has a sloping structure.

3. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: A drainage pipe is installed at the bottom of the water collection tank, and a drainage valve is installed on the drainage pipe.

4. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: A sealing gasket is provided at the connection between the screen fixing plate and the water inlet pipe.

5. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: The screen fixing plate has a handle at the top and multiple concentric external threaded discs fixed at the bottom; the screen has an internal thread on the top inner side, and the screen is installed at the bottom of the screen fixing plate through the cooperation of the internal thread and the external threaded discs.

6. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: The L-shaped support hook is a round rod. The free end of the horizontal rod of the L-shaped support hook is connected to the drive motor installed inside the control box. The vertical rod of the L-shaped support hook is an externally threaded screw. Fixing holes are provided on both sides of the screen fixing plate. The vertical rod of the L-shaped support hook passes through the fixing holes and is fixed by a nut.

7. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: The bottom of the water inlet pipe is provided with multiple sieve holes.

8. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: The control box is a hollow metal ring structure.

9. The water sieve device for laboratory solid particle size analysis according to claim 1, characterized in that: It also includes a placement rack for placing the screen fixing plate.

10. The water sieve apparatus for laboratory solid particle size analysis according to claim 9, characterized in that: The placement frame includes a circular base and multiple support rods fixed to the circular base, the multiple support rods having the same height; the screen fixing plate is placed horizontally at the top of the multiple support rods.

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