Wet screening device for fine-grained materials

Abstract

The present invention provides a fine-grained material wet screening device, comprising a main frame and a standard screen fixing device, wherein the standard screen fixing device is suspended on the main frame through a first spring, and the standard screen fixing device is connected to a vibration module through a connecting piece; a second spring is arranged below the vibration module, and a water tank is arranged below the standard screen fixing device; a material receiving device is arranged below the water tank, when wet screening is required, the material is placed on the standard screen in the standard screen fixing device, and then clean water is added to the water tank until the material in the standard screen is just covered, the screening time and the screening frequency are set on a numerical control device, and the screening is started, the vibration module not only vibrates in the horizontal direction, but also the standard screen vibrates up and down under the action of the first spring and the second spring, so as to avoid the fine-grained material from being enriched in a certain area on the standard screen, the fine-grained material is quickly screened, and the screening efficiency, screening effect and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the field of metallurgical mineral processing, and more specifically, to a screening device, and in particular to a wet screening device for fine-grained materials. Background Art

[0002] When analyzing the particle size of materials, or in chemical industry, metallurgy, mineral processing and other fields, it is often necessary to analyze and measure the content of fine particle sizes such as -200 mesh, -325 mesh, -400 mesh, -500 mesh, etc. Due to the fine particle size, the error of dry screening is large, so wet screening is generally used for measurement.

[0003] At present, in the existing wet screening devices, the standard screen usually moves in a single direction, such as horizontal vibration or up and down vibration. However, no matter which single movement mode is used, it is easy to cause the fine-grained materials in the standard screen to gather in a certain area, which will cause the screening effect to be unsatisfactory. In some areas, wet screening is still mainly done by manual hand screening, which is not only labor-intensive, but also easy to cause inaccurate screening indicators.

[0004] For example, an existing horizontal vibrating wet vibrating screen machine includes: a bracket; a vibrator, which is installed on the bracket in a vertical direction; a standard screen tray, which is connected to the vibrator. The standard screen tray is used to place a standard screen and vibrates horizontally under the eccentric vibration of the vibrator. This type of vibrating screen machine does not interfere much with the sedimentation of fine particles in the slurry under the action of its own weight when working; another laboratory wet screening and sampling screen includes a screen surface, a screen frame, a handle and a discharge port. The screen surface is connected to the lower edge of the screen frame, and the upper edge of the screen frame has two symmetrically distributed handles. The center of the arc coincides with the center of the screen surface. The beneficial effect is that the arc screen frame can effectively prevent the overflow of large particles on the screen, thereby reducing the error caused by human factors during screening, that is, the manual screening method is still used, which will not only increase the labor intensity of the workers, but also have low screening efficiency and it is difficult to ensure the accuracy of the screening data.

[0005] Therefore, there is an urgent need for a wet screening device for fine-grained materials that can automatically perform wet screening, improve screening efficiency, and ensure screening accuracy. Summary of the invention

[0006] In view of the above problems, the purpose of the present invention is to provide a wet screening device for fine-grained materials to solve the problem that the standard screen in the existing wet screening device only moves in a single direction, such as horizontal vibration or up and down vibration. However, no matter which single movement mode is used, it is easy to cause the fine-grained materials in the standard screen to often gather in a certain area, which will cause unsatisfactory screening effect; even wet screening is often based on manual hand screening, which is not only labor-intensive, but also easy to cause the problem of inaccurate screening indicators.

[0007] The present invention provides a fine-grained material wet screening device, which is characterized by comprising a main frame and a standard screen fixing device, wherein:

[0008] A first spring is hung on the upper part of the main frame, and the standard screen fixing device is hung on the main frame through the first spring;

[0009] The standard screen fixing device is connected to a vibration module via a connecting piece, and the vibration module drives the standard screen fixing device to perform reciprocating vibration via the connecting piece; and a second spring is arranged below the vibration module;

[0010] A water tank is provided below the standard screen fixing device; the water tank is used to temporarily store clean water and screened materials;

[0011] A material receiving device is arranged below the water tank, and the material receiving device is used for collecting clean water and screened materials.

[0012] Preferably, an adjustment fixing assembly is provided on the standard sieve fixing device, and the adjustment fixing assembly is used for buckling standard sieves of different finenesses.

[0013] Preferably, the vibration module and the second spring are arranged on the main frame.

[0014] Preferably, a discharge port is provided below the water tank, and the discharge port is used to discharge the clean water temporarily stored in the water tank and the screened materials;

[0015] A valve is provided at the discharge port, and the valve is used to control the opening and closing of the discharge port.

[0016] Preferably, the water tank is movably fixed on the main frame by a water tank fixing device.

[0017] Preferably, it also includes a numerical control device; wherein,

[0018] The numerical control device is used to control the vibration frequency and screening time of the vibration module and control the up and down position of the water tank; and,

[0019] The numerical control device is arranged on the main frame.

[0020] Preferably, the numerical control device is connected to a motor;

[0021] The motor is connected to the water tank to provide power for the lifting and lowering of the water tank.

[0022] Preferably, the motor is arranged on the main frame.

[0023] Preferably, the number of the first springs is two, and the lower ends of the two first springs are symmetrically arranged on the standard screen fixing device.

[0024] Preferably, it also includes a switch button for turning the power on and off; wherein,

[0025] The power supply provides power support for the motor and the control device;

[0026] The switch button is arranged on the main frame.

[0027] From the above description, it can be known that the fine-grained material wet screening device provided by the present invention includes a main frame and a standard screen fixing device, a first spring is hung on the upper part of the main frame, the first spring is connected to the standard screen fixing device, and the standard screen fixing device is connected to the vibration module through a connecting piece; and a second spring is arranged below the vibration module, and a water tank is arranged below the standard screen fixing device; the water tank is used to temporarily store clean water and screened materials; a material receiving device is arranged below the water tank for collecting clean water and screened materials, and when wet screening is required, the standard screen is buckled onto the standard screen fixing device, Then place the material on the standard screen, then lift the water tank to a suitable height, and add clean water to the water tank until the clean water just covers the material in the standard screen, set the screening time and screening frequency on the CNC device, start the screening, the vibration module not only vibrates in the horizontal direction, but the standard screen also vibrates up and down under the action of the first spring and the second spring, thereby avoiding the enrichment of fine-grained materials in a certain area of ​​the standard screen, and quickly and accurately screening the fine-grained materials, while reducing the labor intensity of workers, improving working conditions, improving screening efficiency and screening effect, and improving screening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By referring to the following description and claims in conjunction with the accompanying drawings, and with a more comprehensive understanding of the invention, other objects and results of the present invention will become more apparent and easier to understand. In the accompanying drawings:

[0029] Figure 1 A fine-grained material wet screening device according to an embodiment of the present invention;

[0030] The accompanying drawings include: 1. motor; 2. vibration module; 3. second spring; 4. main frame; 5. first spring; 6. standard screen fixing device; 7. adjustment fixing structure; 8. connecting piece; 9. water tank; 10. water tank fixing device; 11. discharge port; 12. valve; 13. material receiving device; 14. numerical control device. The same numbers in all the accompanying drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0031] In the existing wet screening device, the standard screen only moves in a single direction, such as horizontal vibration or up and down vibration. However, no matter which single movement mode is used, it is easy to cause the fine-grained materials in the standard screen to gather in a certain area, which will result in unsatisfactory screening effect. Even wet screening is often based on manual hand screening, which is not only labor-intensive, but also easy to cause inaccurate screening indicators.

[0032] In view of the above problems, the present invention provides a wet screening device for fine-grained materials. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] The following description of exemplary embodiments is merely illustrative in nature and is not intended to limit the invention and its application or use. Technologies and devices known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, technologies and devices should be considered as part of the specification.

[0034] like Figure 1 As shown, the present invention provides a fine-grained material wet screening device, which is used to move the standard screen in the horizontal and vertical directions to improve the screening efficiency, avoid the enrichment of fine-grained materials in a certain area of ​​the standard screen, and quickly and accurately screen the fine-grained materials. The device comprises a main frame 4 and a standard screen fixing device 6, wherein the shape and material of the main frame 4 are not specifically limited, and can be any frame or box with a supporting effect. In this embodiment, a metal frame is used, so that it is more convenient to add water and materials to the standard screen in the standard screen fixing device; the standard screen fixing device 6 is used to place the standard screen, and there is no specific limitation on the specific shape and material of the standard screen fixing device 6. In this embodiment, a circular standard screen fixing device is used, and an adjustment fixing component 7 is arranged on the standard screen fixing device 6, and the adjustment fixing component 7 is used to buckle the standard screens of different finenesses. The standard screen can be fixed and tightened each time the standard screen is replaced, which is convenient and quick.

[0035] like Figure 1 The fine-grained material wet screening device shown in the figure has a first spring 5 suspended on the upper part of the main frame 4, and the first spring 5 is connected to the standard screen fixing device 6, that is, through the first spring 5, the standard screen fixing device 6 is suspended on the top of the main frame 4 through the first spring 5. The number and elastic coefficient of the first springs are not specifically limited, and can be any spring that can hang the standard screen fixing device 6 and has considerable elasticity. In this embodiment, two first springs 5 ​​are used, and the lower ends of the two first springs 6 are symmetrically arranged on the standard screen fixing device 6, and the upper ends of the two first springs 6 are correspondingly arranged on the top of the main frame 4, so that the two first springs 4 are arranged in parallel and perpendicular to the horizontal plane. Therefore, under the action of the vibration module and the material, the standard screen fixing device can vibrate up and down, thereby preventing the fine-grained material from being enriched in a certain area of ​​the standard screen, so as to complete the screening quickly and accurately.

[0036] exist Figure 1 In the illustrated embodiment, the standard screen fixture 6 is connected to the vibration module 2 via a connector 8; the vibration module 2 drives the standard screen fixture 6 to perform reciprocating vibration via the connector 8, and the reciprocating vibration is horizontal reciprocating vibration, but is not limited to only horizontal reciprocating vibration. In the present embodiment, the vibration module drives the standard screen fixture 6 to perform only horizontal reciprocating vibration, and a second spring 3 is provided under the vibration module 2; in order to keep the standard screen fixture 6 balanced, in the present embodiment, connectors 8 are symmetrically provided at both ends of the standard screen fixture, and the two ends of the standard screen fixture are respectively connected to two vibration modules via the connector 8.

[0037] exist Figure 1 In the illustrated embodiment, there is no specific restriction on the position at which the connecting member is specifically arranged on the standard screen fixing device 6. In the present embodiment, one end of the two connecting members 8 and the bottom ends of the two first springs 5 ​​divide the standard screen fixing device 6 into four equal parts, wherein one end of the two connecting members 8 is symmetrically arranged, and the bottom ends of the two first springs 5 ​​are symmetrically arranged, so that the entire standard screen fixing device is balanced; a second spring 3 is arranged below the vibration module 2, that is, the bottom of the vibration module 2 is connected to the second spring 3. It should be noted that only one vibration module 2 can be arranged on one side. In this case, at the other end where the vibration module 2 is not arranged, the connecting member 8 can be directly connected to the top of the second spring 3; the specific positions of the vibration module 2 and the second spring 3 are not specifically restricted. In the present embodiment, the vibration module 2 and the second spring 3 are arranged on the main frame 4 to cooperate with the first spring 5, so that the fine-grained material can be moved in the horizontal and vertical directions when the material is screened.

[0038] exist Figure 1 In the illustrated embodiment, a water trough 9 is provided below the standard sieve fixing device 6; the water trough 9 is used to temporarily store clean water and screened materials, that is, when material screening is required, the water trough 9 is lifted to a suitable height, and clean water is added to the water trough 9 until the fine-grained materials just pass through the standard sieve, and then the required screening time and screening frequency are set, and the screening is started. The standard sieve can be vibrated and screened in both horizontal and vertical directions. During the screening process, the materials passing through the standard sieve are temporarily stored in the water trough 9 until the screening is completed.

[0039] exist Figure 1In the illustrated embodiment, the water trough 9 is movably fixed on the main frame 4 by a water trough fixing device 10, and the water trough 9 can move up and down. When screening is required, the water trough is raised to a suitable height, and the water trough is lowered when the screening is finished. The suitable height here refers to a height slightly higher than the standard screen in the standard screen fixing device 6, so that the water in the water trough 9 can just cover the fine-grained materials in the standard screen; a discharge port 11 is provided below the water trough 9, and the discharge port 11 is used to discharge the clean water temporarily stored in the water trough and the screened materials; a valve 12 is provided at the discharge port 11, and the valve 12 is used to control the opening and closing of the discharge port 11 to selectively discharge the clean water temporarily stored in the water trough 9 and the screened materials, that is, when screening is performed, the valve 12 is in a closed state, and the materials and clean water in the water trough 9 will not be discharged through the drain port. After the screening is completed, the valve 12 is opened to discharge the fine-grained materials and clean water after the screen out of the water trough.

[0040] exist Figure 1 In the illustrated embodiment, a material receiving device 13 is provided below the water tank 9, and the material receiving device 13 is used to collect clean water and screened materials. That is, after the screening is completed, the valve 12 is opened to allow the screened fine-grained materials and clean water to be discharged into the material receiving device 13, thereby obtaining the screened fine-grained materials.

[0041] exist Figure 1 In the illustrated embodiment, a numerical control device is also included; wherein the numerical control device is used to control the vibration frequency and screening time of the vibration module 2 and control the upper and lower positions of the water tank 9; the specific position of the numerical control device 14 is not specifically limited. In the present embodiment, the numerical control device 14 is arranged on the main frame 4, and the numerical control device 14 is connected to the motor 1, and the motor 1 is connected to the water tank 9 to provide power for the lifting of the water tank 9, that is, the lifting of the water tank 9 is controlled by the control device. When screening is required, the switch of the motor 1 is turned on, and the motor provides power for the lifting of the water tank 9. The control device 14 controls the water tank 9 to rise. Similarly, when the screening is completed, the control device 14 controls the water tank 9 to descend. The specific position of the motor is also not specifically limited. In the present embodiment, the motor is arranged on the main frame 4; the control device 14 is connected to the vibration module 2 to control the vibration frequency and screening time of the vibration module 2, so as to accurately and stably screen the fine-grained materials.

[0042] also, Figure 1 The fine-grained material wet screening device shown also includes a switch button for turning on and off the power supply (not shown in the figure). The power supply provides power support for the motor and the control device. The switch button is set on the main frame. When the fine-grained material wet screening device needs to be used, just turn on the switch button. If it is not used for a long time, the switch button can be turned off to avoid wasting electricity resources.

[0043] The fine-grained material wet screening device of the present invention comprises a main frame and a standard screen fixing device, a first spring is hung on the upper part of the main frame, the first spring is connected to the standard screen fixing device, and the standard screen fixing device is connected to the vibration module through a connecting piece; and a second spring is arranged below the vibration module, and a water tank is arranged below the standard screen fixing device; the water tank is used to temporarily store clean water and screened materials; a material receiving device is arranged below the water tank, which is used to collect clean water and screened materials. When wet screening is required, the standard screen is buckled onto the standard screen fixing device, and then the material is Place it on the standard screen, then lift the water tank to a suitable height, and add clean water to the water tank until the clean water just covers the material in the standard screen, set the screening time and screening frequency on the CNC device, start screening, the vibration module not only vibrates in the horizontal direction, but the standard screen also vibrates up and down under the action of the first spring and the second spring, thereby avoiding the enrichment of fine-grained materials in a certain area of ​​the standard screen, and quickly and accurately screening the fine-grained materials, while reducing the labor intensity of workers, improving working conditions, improving screening efficiency and screening effect, and improving screening accuracy.

[0044] As described above, the fine-grained material wet screening device according to the present invention is described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the fine-grained material wet screening device proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A wet screening device for fine-grained materials, characterized in that: It includes a main frame and a standard screen fixing device, wherein: A first spring is hung on the upper part of the main frame, and the standard screen fixing device is hung on the main frame through the first spring; The standard screen fixing device is connected to a vibration module through a connecting piece, and the vibration module drives the standard screen fixing device to vibrate back and forth through the connecting piece; and a second spring is arranged below the vibration module; the vibration module and the second spring are arranged on the main frame; and the second spring is arranged on the left and right sides of the main frame; A water tank is provided below the standard screen fixing device; the water tank is used to temporarily store clean water and screened materials; A material receiving device is provided below the water tank, and the material receiving device is used to collect clean water and screened materials; A discharge port is provided below the water tank, and the discharge port is used to discharge the clean water temporarily stored in the water tank and the screened materials; A valve is provided at the discharge port, and the valve is used to control the opening and closing of the discharge port; The water tank is movably fixed on the main frame through a water tank fixing device.

2. The fine-grained material wet screening device according to claim 1, characterized in that: An adjusting and fixing assembly is arranged on the standard screen fixing device, and the adjusting and fixing assembly is used for buckling standard screens of different finenesses.

3. The fine-grained material wet screening device according to claim 2, characterized in that: Also includes a numerical control device; wherein, The numerical control device is used to control the vibration frequency and screening time of the vibration module and control the up and down position of the water tank; and, The numerical control device is arranged on the main frame.

4. The fine-grained material wet screening device according to claim 3, characterized in that: The numerical control device is connected to the motor; The motor is connected to the water tank to provide power for the lifting and lowering of the water tank.

5. The fine-grained material wet screening device according to claim 4, characterized in that: The motor is arranged on the main frame.

6. The fine-grained material wet screening device according to claim 1, characterized in that: The number of the first springs is two, and the lower ends of the two first springs are symmetrically arranged on the standard screen fixing device.

7. The fine-grained material wet screening device according to claim 3, characterized in that: It also includes a switch button for turning the power on and off; wherein, The power supply provides power support for the motor and the numerical control device; The switch button is arranged on the main frame.

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