Handheld simple wet screening device

Abstract

The utility model belongs to the technical field of mineral separation experiment equipment, and particularly discloses a handheld simple wet screening device, a screen comprises a screen surface and a screen frame, a base is of a circular ring structure, a ring groove I capable of being in sliding fit with the outer cylindrical surface of the screen frame is coaxially formed in the base, a vibrator is arranged in a handle, and the driving end of the vibrator is connected with the outer wall of the base; the fixing cover is of a circular ring structure, a ring groove II capable of being in sliding fit with the outer cylindrical face of the screen frame is coaxially formed in the fixing cover, the fixing cover is buckled on the base in the mode that the ring groove II faces the ring groove I, at least two buckles are evenly distributed on the base on the outer side of the ring groove I, the buckles are elastic bodies, and the sides, facing the circle center of the base, of the buckles can be in interference fit with the outer cylindrical face of the fixing cover. The annular base and the fixing cover which are matched with the screen mesh are arranged, the buckle capable of clamping and fixing the screen frame is arranged on the base, and the vibrator driving the base to vibrate in the handle is matched, so that wet screening of mineral particles is achieved, and the wet screening device has the advantages of being simple in structure, easy and convenient to operate, low in labor intensity and high in screening efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral processing experimental equipment, in particular to a handheld simple wet screening device with simple structure, easy operation, low labor intensity and high screening efficiency. Background Art

[0002] Ore crushing and grinding is the preparatory stage of various mineral processing operations, which aims to provide ore particles with particle sizes suitable for the operation requirements. Analyzing the particle size composition of ore particles in the slurry after crushing and grinding is an important indicator for evaluating the crushing and grinding effect and the quality of the operation feeding. At the same time, when abnormalities occur in each link of the operation, the changes in the particle size composition within the link can also be analyzed to analyze the causes and optimize them. Therefore, screening analysis is an important method for analyzing the particle size composition of materials in the field of mineral processing.

[0003] At present, screening and grading in the laboratory usually adopt dry screening and wet screening. Since wet screening and grinding are commonly used in the mineral processing process, the grinding products have fine particle size, muddling phenomenon and high water content, so dry screening is generally suitable for screening coarse particles (+0.074mm), and is mostly used as an auxiliary operation after screening operation; for particle size (-0.1mm), mesh screens with different mesh sizes are often used for grading. At present, laboratories usually use hand screening to generate physical and mechanical vibration for wet screening, which is not only time-consuming and labor-intensive, but also has low screening efficiency, especially for some fine materials (-0.037mm). Due to the low frequency of artificial physical and mechanical vibration, fine particles are also prone to flocculation, making the screening efficiency particularly low, and continuous hand screening is also a great test for the skills and physical strength of the operator. Manual operation will also cause large errors in the experimental results, resulting in unsatisfactory final screening effect.

[0004] For wet screening, the prior art has a method of stacking multiple layers of filter screens on a filter screen base, and then placing the material to be screened in the top filter screen, and then driving the filter screen and the material on it to vibrate through a vibration motor, and spraying water through a water inlet pipe to filter and screen the material; although the aforementioned technical solution can effectively improve the screening efficiency and reduce the labor intensity compared to manual screening, its structure is relatively complex, and the equipment is large, which is not conducive to laboratory use. For this reason, there is also a method of arranging a vibration component in the base, and then arranging a chassis connected to the vibration component on the base, and fixing a screen assembly on the chassis through a fixing component, and the screen assembly includes a plurality of annular enclosures and a mesh body fixed in the annular enclosure, and the fixing component includes an upper cover pressed on the top of the screen assembly and a bracket assembly for adjusting the upper cover; thus, more screen sizes can be provided through the screen assembly, which is convenient for selection, and the base and the vibration component make the structure more compact and convenient for miniaturization, but its structure is still relatively complex, and the screen replacement is inconvenient. In addition, there is also a double-layer machine base, an ultrasonic generator is arranged in the lower closed structure of the machine base, a hanging basin is arranged in the upper box of the machine base, a rigid bracket is arranged horizontally on the hanging basin, a sieve extending into the hanging basin is arranged on the rigid bracket, and a slide groove is opened on the opposite sides of the upper box of the machine base, a reciprocating motor and a connecting converter are arranged in the upper box connected to the slide groove, so that the rigid bracket extending into the slide groove is connected through the connecting converter to drive the sieve to realize reciprocating motion, and finally the ultrasound, reciprocating motion and wet screening process are well combined, so that the material is always kept in a suspended and dispersed state during the wet screening process, effectively avoiding the occurrence of fine particle floccules, and allowing the screened particles to pass through the screen surface quickly, thereby significantly improving the wet screening efficiency and screening effect; but because it involves ultrasound and reciprocating motion, its overall structure and operation control are relatively complicated, and the sieve needs to be specially made because it needs to be connected to the rigid bracket, which makes the cost of the sieve high. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a handheld simple wet screening device with simple structure, easy operation, low labor intensity and high screening efficiency.

[0006] The utility model is implemented as follows: it includes a base, a fixed cover, a handle, and a screen mesh, wherein the screen mesh includes a screen surface, a circular ring structure and a screen frame fixed on the outside of the screen surface, and also includes a vibrator. The base is a circular ring structure and is coaxially provided with a ring groove I that can slide with the outer cylindrical surface of the screen frame. The vibrator is arranged inside the handle and the driving end of the driver is fixedly connected to the outer wall of the base. The fixed cover is a circular ring structure and is coaxially provided with a ring groove II that can slide with the outer cylindrical surface of the screen frame. The fixed cover is buckled on the base in a manner that the ring groove II faces the ring groove I. At least two buckles extending toward the opening side of the ring groove I are evenly distributed on the base outside the ring groove I. The buckle is an elastic body and the side facing the center of the base can be interference-fitted with the outer cylindrical surface of the fixed cover.

[0007] Furthermore, the buckle includes a connecting handle and a clamping head, the connecting handle is fixedly connected to the base, the clamping head is fixedly arranged on the connecting handle and extends toward the opening side of the ring groove I, and the side of the clamping head facing the center of the base is interference fit with the outer cylindrical surface of the fixed cover; the cross-section of the side of the clamping head facing the center of the base is a “>” shape or a “∠” shape structure with the hypotenuse facing the fixed cover, or the clamping head is a straight rod and the side facing the center of the base is inclined inward.

[0008] Furthermore, the side of the clamping head facing the center of the base is an arc surface concentric with the outer cylindrical surface of the fixed cover.

[0009] Furthermore, the top end of the “>”-shaped structure of the clamp presses against the outer cylindrical surface of the fixed cover, the hypotenuse of the “∠”-shaped structure presses against the outer edge of the top surface of the fixed cover, or the straight rod presses against the outer edge of the top surface of the fixed cover.

[0010] Furthermore, the connecting handle is integrally connected to the base, or the connecting handle is fixedly connected to the base via screws.

[0011] Furthermore, the utility model also includes a side frame, which is a hollow frame with an inner diameter larger than the base, at least three hooks are evenly distributed on the outer cylindrical surface of the base, and the inner side of the side frame is connected to a plurality of springs corresponding to the number of hooks on the outer cylindrical surface of the base, and the springs are detachably connected to the hooks.

[0012] Furthermore, a plurality of supporting legs are arranged at intervals at the bottom end of the side frame, and a fixing seat is also arranged between the spring connection points of the side frame, and the handle is detachably fixed on the fixing seat.

[0013] Furthermore, a screw hole or a fixing nut with a center line extending toward the center of the side frame is provided at a position corresponding to the hook on the side frame, an adjusting screw is provided in the screw hole or the fixing nut, the screw rod of the adjusting screw extends toward the inside of the side frame and a hanging hole for connecting a spring is provided at the top.

[0014] Furthermore, a fixing nut which is pressed against the side frame is sleeved on the screw rod of the adjusting screw.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model realizes wet screening of mineral particles by providing an annular base and a fixed cover adapted to the screen, and providing a buckle on the base that can be engaged with the fixed screen frame, and cooperating with a vibrator in the handle that drives the base to vibrate. The utility model has not only a simple structure and is easy to operate, but also its connection structure can well fix the ordinary screen or the special screen for screening, so it has strong adaptability, and can use the ordinary screen, expand the selection range of the screen mesh and reduce the cost of the screen.

[0017] 2. The utility model realizes wet screening by installing a conventional micro-vibrator in the handle and driving the base and the screen thereon to vibrate through the driving end of the vibrator. Compared with the current conventional manual physical mechanical vibration, the vibration frequency is significantly improved. Therefore, not only can the screening efficiency be significantly improved, but the high-frequency vibration can also effectively slow down or even destroy the flocculation of fine particles. The screen is vibrated by the vibrator, which can not only significantly reduce the labor intensity of the operator, but also reduce the error of the experimental results caused by manual operation.

[0018] 3. The utility model further arranges a side frame, and realizes elastic suspension by connecting the side frame with the base through multiple springs on the side frame. At the same time, a fixed seat fixing handle and a plurality of supporting feet are arranged on the side frame at the bottom, so that unattended wet screening can be realized to liberate the operator, and the experimental result error caused by manual operation can be completely avoided; in particular, a plurality of screw holes or nuts with center lines extending toward the center of the side frame are arranged on the side frame, and screws are arranged in the screw holes or nuts, the screw rods of the screws extend toward the inner side of the side frame and the top end is provided with hanging holes that can be connected to the springs, so that the springs can be adjusted by the screws to realize the level of the screen on the elastically suspended base, thereby effectively reducing the error of the screening experiment results.

[0019] Therefore, the utility model has the characteristics of simple structure, easy operation, low labor intensity and high screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0021] Figure 2 for Figure 1 Exploded view;

[0022] Figure 3 for Figure 1 A top view of

[0023] Figure 4 for Figure 3 AA rotated section view;

[0024] Figure 5This is the second schematic diagram of the three-dimensional structure of the utility model;

[0025] In the figure: 1-base, 11-ring groove I, 12-hook, 2-fixed cover, 21-ring groove II, 3-handle, 4-screen, 41-screen surface, 42-screen frame, 5-buckle, 51-connecting handle, 52-clamp, 6-side frame, 61-support foot, 62-fixed seat, 7-spring, 8-screw, 9-nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] like Figures 1 to 4 As shown, the utility model includes a base 1, a fixed cover 2, a handle 3, and a screen 4, wherein the screen 4 includes a screen surface 41, a circular ring structure and a screen frame 42 fixed on the outside of the screen surface 41; and also includes a vibrator, wherein the base 1 is a circular ring structure and is coaxially provided with an annular groove Ⅰ11 which can slide with the outer cylindrical surface of the screen frame 42, the vibrator is arranged inside the handle 3 and the driving end of the driver is fixedly connected to the outer wall of the base 1, the fixed cover 2 is a circular ring structure and is coaxially provided with an annular groove Ⅱ21 which can slide with the outer cylindrical surface of the screen frame 42, the fixed cover 2 is buckled on the base 1 in a manner that the annular groove Ⅱ21 faces the annular groove Ⅰ11, and at least two buckles 5 extending toward the opening side of the annular groove Ⅰ11 are evenly distributed on the base 1 outside the annular groove Ⅰ11, and the buckle 5 is an elastomer and the side facing the center of the base 1 can be interference fit with the outer cylindrical surface of the fixed cover 2.

[0028] The buckle 5 includes a connecting handle 51 and a clamping head 52. The connecting handle 51 is fixedly connected to the base 1. The clamping head 52 is fixedly arranged on the connecting handle 51 and extends toward the opening side of the annular groove Ⅰ11. The side of the clamping head 52 facing the center of the base 1 is interference fit with the outer cylindrical surface of the fixed cover 2; the cross-section of the side of the clamping head 52 facing the center of the base 1 is a “>” shape or a “∠” shape structure with the hypotenuse facing the fixed cover 2, or the clamping head 52 is a straight rod and the side facing the center of the base 1 is inclined inward.

[0029] The vibrator is any form of commercially available micro vibrator that can drive the base 1, and the screen 4 is a common experimental circular screen or a special circular screen. Of course, a square or elliptical screen can also be used, and the shapes of the annular groove Ⅰ11 of the base 1 and the annular groove Ⅱ21 of the fixed cover 2 are adapted to the screen 4.

[0030] The side of the clamping head 52 facing the center of the base 1 is an arc surface concentric with the outer cylindrical surface of the fixing cover 2 .

[0031] The top end of the “>”-shaped structure of the clamp head 52 presses against the outer cylindrical surface of the fixed cover 2 , the hypotenuse of the “∠”-shaped structure presses against the outer edge of the top surface of the fixed cover 2 , or the straight rod presses against the outer edge of the top surface of the fixed cover 2 .

[0032] The connecting handle 51 is integrally connected to the base 1 , or the connecting handle 51 is fixedly connected to the base 1 via screws.

[0033] The handle 3 is also provided with a battery or power connection port, and the vibrator is electrically connected to the battery or power connection port. The handle 3 is also provided with a control switch electrically connected to the vibrator.

[0034] like Figure 5 As shown, the utility model further includes a side frame 6, which is a hollow frame with an inner diameter larger than the base 1, and at least three hooks 12 are evenly distributed on the outer cylindrical surface of the base 1. The inner side of the side frame 6 is connected to a plurality of springs 7 corresponding to the number of hooks 12 on the outer cylindrical surface of the base 1, and the springs 7 are detachably connected to the hooks 12. The setting of the spring 7 will not affect the vibration of the base 1 and the screen 4 thereon under the drive of the driver, and the pulling of the base 1 by the spring 7 can also reduce the force acting on the drive end of the driver, thereby enhancing the service life of the driver.

[0035] The bottom end of the side frame 6 is provided with a plurality of legs 61 at intervals. The side frame 6 is also provided with a fixing seat 62 between the connection points of the spring 7 , and the handle 3 is detachably fixed on the fixing seat 62 .

[0036] The position corresponding to the hook 12 on the side frame 6 is provided with a screw hole or a fixing nut 9 whose center line extends toward the center of the side frame 6, and an adjusting screw 8 is provided in the screw hole or the fixing nut 9, and the screw rod of the adjusting screw 8 extends toward the inside of the side frame 6 and a hanging hole for connecting a spring 7 is provided at the top. The level of the screen surface 41 can be adjusted by adjusting the screw 8 via the spring 7.

[0037] The screw rod of the adjusting screw 8 is sleeved with a fixing nut which abuts against the side frame 6 .

[0038] The working principle and working process of the utility model are as follows:

[0039] like Figures 1 to 5 As shown, the base 1 is immersed in the container by holding the handle 3, and then the 200-mesh ordinary screen 4 is placed in the annular groove Ⅰ11 of the base 1, and then the annular groove Ⅱ21 of the fixed cover 2 is aligned with the outer cylindrical surface of the screen frame 42 of the screen 4 and pressed down, so that the end surface of the annular groove Ⅱ21 is pressed against the top surface of the screen frame 42, and at the same time, the clamp head 52 of the buckle 5 is pressed against the fixed cover 2 to prevent the screen 4 from loosening (such as Figure 5, then it is necessary to place the side frame 6 in the container, then hang each spring 7 on each hook 12 respectively, then fix the handle 3 to the fixing seat 62, and then connect the other end of each spring 7 to the screw of the corresponding adjusting screw 8, adjust the adjusting screw 8 to keep the screen surface 41 horizontal through the spring 7), then add 200g of ore powder into the screen 4, and add clean water into the container to submerge it to 1 / 3 of the height of the screen frame 42; start the switch on the handle 3 to vibrate the vibrator, and the driving end of the vibrator drives the screen 4 and the ore powder to vibrate in the water through the base 1, and continuously replace the clean water in the container until the clean water is no longer turbid, stop the vibrator and end the screening, finally squeeze the buckle 5 outward with force and take out the fixing cover 2 and the screen 4, collect the +200 mesh particles on the screen surface 41, and the -200 mesh particles in the container, and complete the screening of the ore powder.

[0040] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A handheld simple wet screening device, comprising a base (1), a fixed cover (2), a handle (3), and a screen (4), wherein the screen (4) comprises a screen surface (41), and a screen frame (42) having a circular ring structure and fixed on the outside of the screen surface (41), characterized in that The invention also comprises a vibrator, wherein the base (1) is a circular ring structure and is coaxially provided with an annular groove I (11) which can slide with the outer cylindrical surface of the sieve frame (42); the vibrator is arranged inside the handle (3) and the driving end of the driver is fixedly connected to the outer wall of the base (1); the fixed cover (2) is a circular ring structure and is coaxially provided with an annular groove II (21) which can slide with the outer cylindrical surface of the sieve frame (42); the fixed cover (2) is buckled on the base (1) in a manner that the annular groove II (21) faces the annular groove I (11); at least two buckles (5) extending toward the opening side of the annular groove I (11) are evenly distributed on the base (1) outside the annular groove I (11); the buckles (5) are elastic and the side facing the center of the base (1) can be interference-fitted with the outer cylindrical surface of the fixed cover (2).

2. The handheld simple wet screening device according to claim 1 is characterized in that The buckle (5) comprises a connecting handle (51) and a clamping head (52); the connecting handle (51) is fixedly connected to the base (1); the clamping head (52) is fixedly arranged on the connecting handle (51) and extends toward the opening side of the annular groove I (11); the side of the clamping head (52) facing the center of the base (1) is interference-fitted with the outer cylindrical surface of the fixed cover (2); the cross-section of the side of the clamping head (52) facing the center of the base (1) is a ">" shape or a "∠"-shaped structure with the bevel facing the fixed cover (2); or the clamping head (52) is a straight rod and the side facing the center of the base (1) is inclined inwards.

3. The handheld simple wet screening device according to claim 2 is characterized in that The side of the clamping head (52) facing the center of the base (1) is an arc surface that is concentric with the outer cylindrical surface of the fixed cover (2).

4. The handheld simple wet screening device according to claim 2 is characterized in that The top end of the ">"-shaped structure of the clamp (52) presses against the outer cylindrical surface of the fixed cover (2), the hypotenuse of the "∠"-shaped structure presses against the outer edge of the top surface of the fixed cover (2), or the straight rod presses against the outer edge of the top surface of the fixed cover (2).

5. The handheld simple wet screening device according to claim 2 is characterized in that The connecting handle (51) is integrally connected to the base (1), or the connecting handle (51) is fixedly connected to the base (1) via screws.

6. The handheld simple wet screening device according to any one of claims 1 to 5, characterized in that The invention also comprises a side frame (6), the side frame (6) being a hollow frame having an inner diameter greater than that of the base (1), at least three hooks (12) being evenly distributed on the outer cylindrical surface of the base (1), a plurality of springs (7) corresponding to the number of hooks (12) on the outer cylindrical surface of the base (1) being connected to the inner side of the side frame (6), the springs (7) being detachably connected to the hooks (12).

7. The handheld simple wet screening device according to claim 6, characterized in that A plurality of legs (61) are arranged at intervals at the bottom end of the side frame (6), and a fixing seat (62) is also arranged on the side frame (6) between the connection points of the spring (7), and the handle (3) is detachably fixed on the fixing seat (62).

8. The handheld simple wet screening device according to claim 7, characterized in that A screw hole or a fixing nut (9) whose center line extends toward the center of the side frame (6) is provided at a position on the side frame (6) corresponding to the hook (12), and an adjusting screw (8) is provided in the screw hole or the fixing nut (9). The screw rod of the adjusting screw (8) extends toward the inside of the side frame (6) and a hanging hole for connecting a spring (7) is provided at the top end.

9. The handheld simple wet screening device according to claim 8, characterized in that A fixing nut is sleeved on the screw rod of the adjusting screw (8) and is pressed against the side frame (6).

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