Screening device for surface treatment of glass beads

Abstract

The utility model relates to a screening device for surface treatment of glass beads. Comprising a screening drying box, and the lower portion of the screening drying box is provided with a water outlet and a lower control valve; a box cover is mounted at the top of the screening drying box, and a feeding hole and an upper control valve are arranged on the box cover; a first screening structure, a second screening structure, a third screening structure and a fourth screening structure are sequentially arranged in an inner cavity of the screening drying box from bottom to top, wherein screening holes of the screening structures are gradually increased, and the sizes of screening surfaces are gradually reduced. A plurality of windows are formed in the side face of the screening drying box, and a sealing plate is installed on each window in a sealed mode. The vibrating mounting assembly and the rotating motor are used for driving all the screening structures to do longitudinal reciprocating motion; the device further comprises an air blower and a hot air box body, and a heating pipe is installed in the hot air box body. The glass bead screening and drying device can conduct multi-stage screening operation and drying operation on glass beads at the same time, prevents the glass beads from being affected with damp during step-by-step operation, and is high in working efficiency and good in drying effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screening equipment technical field, especially relate to a screening device for glass bead surface treatment. BACKGROUND

[0002] Glass bead is a new type of material with wide application and special performance developed in recent years, which is mainly made of borosilicate raw materials through high-tech processing, has the advantages of light weight, low thermal conductivity, high strength and the like, is very easy to disperse in organic material system, and is often applied to rust removal of aerospace machinery, night reflection of zebra lines, no parking lines and double yellow lines of urban traffic roads, and night reflection device of traffic signboards.

[0003] The production process of glass bead is mainly powder method, which is to crush glass into required particles, melt the glass particles at a certain temperature through uniform heating zone after screening, form microbeads under the action of surface tension, and then cool and form, to naturally form round glass beads.

[0004] In the traditional production process, the above-mentioned drying and multi-stage screening are two steps, which are carried out in different equipment, resulting in low production efficiency of glass beads, and glass beads are easy to be damp during operation and screening, which affects the drying effect of the material. UTILITY MODEL CONTENT

[0005] The utility model discloses a screening device for glass bead surface treatment with reasonable structure design and high working efficiency, which can simultaneously perform multi-stage screening operation and drying operation on glass beads, and has high working efficiency and good drying effect.

[0006] The utility model discloses a technical scheme adopted for solving the technical problems existing in the prior art is: a kind of screening device for glass bead surface treatment includes box support, screening drying box is installed on box support, outlet is opened in the lower part of screening drying box and is installed with lower control valve;Box cover is installed at the top opening of screening drying box, and inlet is provided on the box cover and is installed with upper control valve;First screening structure, second screening structure, third screening structure and fourth screening structure are sequentially arranged in the inner chamber of screening drying box from bottom to top, the screen hole on first screening structure, second screening structure, third screening structure and fourth screening structure gradually increases in turn, and the screen surface size of first screening structure, second screening structure, third screening structure and fourth screening structure gradually decreases in turn;A plurality of windows are opened on the side of screening drying box and are sealedly installed with sealing plate on each window, and multiple sets of sealing plates are respectively and one-to-one corresponding with first screening structure, second screening structure, third screening structure and fourth screening structure;It further includes vibration installation component installed in screening drying box, for driving first screening structure, second screening structure, third screening structure and fourth screening structure to move synchronously vertically reciprocating, and further includes rotary motor for driving vibration installation component;It further includes air blower, hot air box body is installed at the air outlet of air blower, heating pipe is installed in hot air box body, and the air outlet of hot air box body is connected with the inner chamber of screening drying box by pipeline.

[0007] The utility model discloses a screening device for glass bead surface treatment, by setting first screening structure, second screening structure, third screening structure and fourth screening structure of screen hole gradually increasing in turn, can carry out dehydration and grading screening operation to the glass bead that is put into screening drying box, by setting the rotary motor of vibration installation component, can drive first screening structure, second screening structure, third screening structure and fourth screening structure synchronous vibration operation, and accelerate the screening efficiency and dehydration efficiency of screening structure;By setting air blower and the hot air box body of installing heating pipe, high-temperature drying gas can be rushed into screening drying box, and then the material retained in each screening structure is carried out drying operation, wherein, the drying efficiency and drying effect of glass bead material can be accelerated by the up-and-down vibration of each screening structure;By setting multiple sets of sealing plates corresponding to each screening structure, glass bead can be conveniently transferred and collected after completing multistage screening and drying operation.The utility model can carry out multistage screening operation and drying operation to glass bead simultaneously, avoid glass bead from being damp when carrying out drying and multistage screening operation step by step, and the working efficiency is high and drying effect is good.

[0008] Preferably, the vibration mounting assembly comprises two sets of vibration frame assemblies arranged oppositely in the screening drying box, each vibration frame assembly is provided with an upper guide seat and a lower guide seat arranged in an up-down manner, each vibration frame assembly is provided with a reciprocating frame mechanism connected to the upper guide seat and the lower guide seat in a sliding manner, the two sets of reciprocating frame mechanisms are arranged in a 180-degree symmetry, a driving cam in rolling contact with the two sets of reciprocating frame mechanisms is arranged between the two sets of driving cams, and a cam rotating shaft is arranged between the two sets of driving cams; each reciprocating frame mechanism is provided with two sets of slide groove mounting plates arranged in an up-down manner, and two ends of each screening structure are connected to the two sets of slide groove mounting plates in a sliding manner.

[0009] Preferably, the vibration frame assembly comprises two sets of support rod plates arranged in an up-down manner, and the two sets of support rod plates are fixedly connected with two sets of guide support rods arranged in a longitudinal direction.

[0010] Preferably, the reciprocating frame mechanism comprises two sets of lifting guide rods connected to the guide seat in a sliding manner through a linear bearing, a guide rod mounting plate and a roller mounting frame are arranged at two ends of the two sets of lifting guide rods, respectively, a rotating connecting roller in rolling contact with the driving cam is arranged on the roller mounting frame, and a spring limiting piece is threadedly connected to each lifting guide rod and located between the guide seat and the roller mounting frame; a first buffer spring and a second buffer spring are arranged on each lifting guide rod, and the first buffer spring and the second buffer spring are located on two sides of the spring limiting piece and in tight contact with the spring limiting piece.

[0011] Preferably, the driving cam has two sets of far ends, and the two sets of far ends are arranged in a 180-degree symmetry.

[0012] Preferably, the first screening structure comprises a screening mounting plate provided with at least two sets of sliding blocks, the sliding blocks are in a T-shaped structure and are connected to the slide grooves arranged on the vibration mounting assembly in a sliding manner, an installation slot is arranged in the middle of the screening mounting plate, a hole plate mounting box is arranged in the installation slot, a screening hole plate is arranged at the bottom opening of the hole plate mounting box, and two opposite edges of the hole plate mounting box are bent downward to form clamping edges capable of being clamped to edges of the screening mounting plate.

[0013] Preferably, the box cover is provided with a material guide hopper arranged in the inner cavity, the material guide hopper is in a funnel-shaped structure, and an impurity filtering screen is arranged in the material guide hopper to filter impurities in rinsing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view of the utility model;

[0015] Figure 2 is a three-dimensional structure schematic view of the vibration mounting assembly in the utility model;

[0016] Figure 3It is the three-dimensional structure schematic view of the vibration frame assembly and the reciprocating frame mechanism in the utility model.

[0017] Figure 4 It is the three-dimensional structure schematic view of the first screening structure in the utility model.

[0018] In the figure: 1, box support; 2, lower control valve; 3, screening drying box; 4, sealing plate; 5, first screening structure; 5-1, screening mounting plate; 5-2, orifice plate mounting box; 5-3, screening orifice plate; 5-4, clamping flange; 5-5, sliding block; 6, second screening structure; 7, third screening structure; 8, fourth screening structure; 9, material guide hopper; 10, impurity filter screen; 11, feed inlet; 12, upper control valve; 13, box cover; 14, vibration mounting assembly; 14-1, vibration frame assembly; 14-1-1, support plate; 14-1-2, guide support rod; 14-2, lower guide seat; 14-3, cam rotating shaft; 14-4, reciprocating frame mechanism; 14-4-1, guide rod mounting plate; 14-4-2, lifting guide rod; 14-4-3, first buffer spring; 14-4-4, spring limiting piece; 14-4-5, second buffer spring; 14-4-6, roller mounting bracket; 14-4-7, adapter roller; 14-5, driving cam; 14-6, upper guide seat; 14-7, sliding groove mounting plate; 15, rotary motor; 16, heating pipe; 17, hot air box; 18, air blower. DETAILED DESCRIPTION

[0019] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are described in detail as follows:

[0020] Please see Figure 1 The screening device for glass microsphere surface treatment of the utility model includes box support 1, screening drying box 3 is installed on the box support 1, and water outlet is formed in the lower part of screening drying box 3 and lower control valve 2 is installed; box cover 13 is installed at the top opening of screening drying box 3, feed inlet 11 is provided on box cover 13 and upper control valve 12 is installed. In addition, in order to guide the material flowing from feed inlet 11, the embodiment further includes material guide hopper 9 installed on the inner cavity top surface of box cover 13, and material guide hopper 9 is in the form of a funnel structure, impurity filter screen 10 is installed in material guide hopper 9 and is used for filtering impurities in rinsing. The diameter of the filter screen hole formed in the above-mentioned impurity filter screen 10 is greater than the particle size of the maximum particle of glass microsphere.

[0021] In addition, in order to carry out multi-stage screening operation on the glass microsphere after completing the rinsing operation, such as Figure 1As shown, the inner cavity of the sieving and drying chamber 3 is arranged from bottom to top with a first sieving structure 5, a second sieving structure 6, a third sieving structure 7, and a fourth sieving structure 8, wherein the sieve openings on the first sieving structure 5, the second sieving structure 6, the third sieving structure 7, and the fourth sieving structure 8 gradually increase in size. Furthermore, during the sieving process, to ensure that the next sieving structure can completely receive the glass microspheres falling from the previous sieving structure, the sieve surface size of the first sieving structure 5, the second sieving structure 6, the third sieving structure 7, and the fourth sieving structure 8 gradually decreases in size.

[0022] To facilitate the transfer of glass microspheres that have completed sieving and drying operations, such as Figure 1 As shown, multiple windows are provided on the side of the sieving and drying box 3, and sealing plates 4 are installed on each window. The multiple sets of sealing plates 4 are respectively set to correspond one-to-one with the first sieving structure 5, the second sieving structure 6, the third sieving structure 7 and the fourth sieving structure 8.

[0023] In order to drive the vibration of the screening structure, such as Figure 1 As shown, this embodiment also includes a vibration mounting assembly 14 installed in the screening and drying box 3, which is used to drive the first screening structure 5, the second screening structure 6, the third screening structure 7 and the fourth screening structure 8 to move synchronously in the longitudinal direction. It also includes a rotary motor 15 for driving the vibration mounting assembly 14.

[0024] like Figure 2 As shown, the vibration mounting assembly 14 includes two sets of vibrating frame assemblies 14-1 installed opposite to each other inside the screening and drying chamber 3. Each vibrating frame assembly 14-1 is equipped with an upper guide seat 14-6 and a lower guide seat 14-2 arranged vertically. A reciprocating frame mechanism 14-4 is slidably connected to both the upper guide seat 14-6 and the lower guide seat 14-2. The two sets of reciprocating frame mechanisms 14-4 are symmetrically arranged at 180 degrees. A drive cam 14-5 is provided between the two sets of reciprocating frame mechanisms 14-4, making rolling contact with them. The assembly also includes a cam shaft 14-3 installed between the two sets of drive cams 14-5. The output shaft of the rotary motor 15 is connected to the cam shaft 14-3. Each reciprocating frame mechanism 14-4 is equipped with two sets of sliding groove mounting plates 14-7 arranged vertically. Both ends of each screening structure are slidably connected to the two sets of sliding groove mounting plates 14-7 on the same horizontal plane. In addition, the aforementioned drive cam 14-5 has two sets of distal ends, which are symmetrically arranged at 180 degrees.

[0025] like Figure 2As shown, in the embodiment, the two sets of vibration frame assemblies 14-1 are respectively installed on two opposite inner walls of the screening drying box 3, longitudinal strip-shaped holes are formed in the upper guide seat 14-6 and the lower guide seat 14-2, and the upper guide seat 14-6 and the lower guide seat 14-2 are locked and connected with the inner walls of the screening drying box 3 through screws and locking nuts arranged in the strip-shaped holes. In addition, linear bearings are installed on the upper guide seat 14-6 and the lower guide seat 14-2 and are slidably connected with the vibration frame assembly 14-1 through the linear bearings. Through the above arrangement, the distance between the upper guide seat 14-6 and the lower guide seat 14-2 can be adjusted, and then the driving cam 14-5 in the vibration mounting assembly 14 can be conveniently replaced, so that the driving cam 14-5 can be selected in multiple specifications and sizes, the amplitude of the reciprocating frame mechanism 14-4 is different when the specifications and sizes of the driving cam 14-5 are different, and the purpose of adjusting the amplitudes of multiple sets of screening structures is achieved.

[0026] Further, as shown in Figure 3 The vibration frame assembly 14-1 includes two sets of support rod plates 14-1-1 distributed in an up-down manner, and two sets of guide rods 14-1-2 arranged in a longitudinal direction are fixedly connected between the two sets of support rod plates 14-1-1. The upper guide seat 14-6 and the lower guide seat 14-2 are slidably connected with the guide rods 14-1-2 through linear bearings.

[0027] Further referring to Figure 3 In the embodiment, the reciprocating frame mechanism 14-4 includes two sets of lifting guide rods 14-4-2 slidably connected with the guide seats through linear bearings, a guide rod mounting plate 14-4-1 and a roller mounting frame 14-4-6 are respectively installed at two ends of the two sets of lifting guide rods 14-4-2, and a transfer roller 14-4-7 in rolling contact with the driving cam 14-5 is rotatably connected to the roller mounting frame 14-4-6. The reciprocating frame mechanism 14-4 further includes a spring limiting piece 14-4-4 threadedly connected to each lifting guide rod 14-4-2 and located between the corresponding guide seat and the roller mounting frame 14-4-6, a first buffer spring 14-4-3 and a second buffer spring 14-4-5 are arranged on each lifting guide rod 14-4-2, and the first buffer spring 14-4-3 and the second buffer spring 14-4-5 are respectively located on two sides of the spring limiting piece 14-4-4 and in tight contact with the spring limiting piece 14-4-4.

[0028] Further, two slide groove mounting plates 14-7 in the same reciprocating frame mechanism 14-4 are respectively mounted on the guide rod mounting plate 14-4-1 and the roller mounting frame 14-4-6. In the embodiment, the roller mounting frame 14-4-6 described above mainly includes two sets of mounting blocks arranged oppositely, and mounting vertical plates are fixedly connected on both sides of the two sets of mounting blocks. Corresponding adapter rollers 14-4-7 are rotatably connected with the roller mounting frame 14-4-6 through the shafts fixedly connected between the two sets of mounting vertical plates. Among them, the two sets of lifting guide rods 14-4-2 are respectively slidably arranged on the two sets of mounting blocks described above. Both ends of each second buffer spring 14-4-5 are respectively in tight contact with the corresponding spring limiting piece 14-4-4 and the corresponding mounting block. Both ends of each first buffer spring 14-4-3 are respectively in tight contact with the corresponding spring limiting piece 14-4-4 and the corresponding linear bearing.

[0029] In the actual working process, the rotation of the cam shaft 14-3 can drive the rotation of the driving cam 14-5 connected thereto. When the distal end of the driving cam 14-5 rotates and swings towards the direction close to the reciprocating frame mechanism 14-4, in view of the rolling contact between the driving cam 14-5 and the adapter roller 14-4-7, the rotating and swinging driving cam 14-5 can gradually push the roller mounting frame 14-4-6 connected thereto, so that it gradually moves away from the driving cam 14-5, and compresses the second buffer spring 14-4-5 and the first buffer spring 14-4-3 in the moving process. When the distal end of the driving cam 14-5 starts to rotate and swing away from the reciprocating frame mechanism 14-4, the second buffer spring 14-4-5 and the first buffer spring 14-4-3 in the compressed state start to push the roller mounting frame 14-4-6 to gradually move towards the driving cam 14-5. Such reciprocating operation can realize the operation of driving the reciprocating frame mechanism 14-4 to move longitudinally, and further drive the multiple sets of slide groove mounting plates 14-7 mounted on the two reciprocating frame mechanisms 14-4 to move longitudinally synchronously. Since one screening structure is mounted between the two slide groove mounting plates 14-7 on the same horizontal plane, the screening structure can be driven to vibrate up and down, which accelerates the screening operation of the glass beads and further improves the working efficiency of the screening device.

[0030] As Figure 4As shown, in the embodiment, the first screening structure 5 comprises a screening mounting plate 5-1 on which at least two groups of sliding blocks 5-5 are mounted, the sliding blocks 5-5 are in T-shaped structure and are in sliding connection with the sliding grooves formed on the vibrating mounting assembly 14, that is, the top surface of each sliding groove mounting plate 14-7 is provided with a sliding groove in sliding connection with the sliding blocks 5-5, the sliding groove is transversely arranged and its extending direction is perpendicular to the axial direction of the camshaft 14-3. A mounting slot is formed in the middle of the screening mounting plate 5-1, and a perforated plate mounting box 5-2 is inserted and mounted at the mounting slot, the screening perforated plate 5-3 is mounted at the bottom opening of the perforated plate mounting box 5-2, and the clamping folded edges 5-4 which can be clamped with the edges of the screening mounting plate 5-1 are formed by bending the two opposite edges of the perforated plate mounting box 5-2 downward.

[0031] Through the above arrangement, the sealing plate 4 can be opened and the corresponding screening structure can be extracted as a whole after the screening and drying operations are completed, so as to classify, transfer and collect the glass beads which have completed the multi-stage screening and drying operations.

[0032] In order to perform the drying operation on the glass beads screened on each screening structure, as shown, Figure 1 The embodiment further comprises an air blower 18, a hot air box 17 is mounted at the air outlet of the air blower 18, a plurality of heating pipes 16 are mounted in the hot air box 17, and each heating pipe 16 is electrically connected with a power supply; the air outlet of the hot air box 17 is connected in communication with the inner cavity of the screening drying box 3 through a pipeline, and a rainproof cap is mounted at the air outlet of the pipeline extending to the screening drying box 3, so as to prevent liquid from dropping into the pipeline.

[0033] Working process:

[0034] In the actual working process, after the rinsing operation is completed, the mixture of the rinsing liquid and the glass beads can be poured into the screening drying box 3 from the feeding port 11, or after the rinsing operation is completed, the dehydration operation can be performed in advance, and the glass beads after dehydration can be poured into the screening drying box 3 from the feeding port 11, and in the above operation process, the lower control valve 2 is in the open state and is connected in communication with the liquid recovery container or the waste liquid pool through the pipeline;

[0035] The rotating motor 15 is started, and the rotating motor 15 can drive the cam rotating shaft 14-3 to rotate, the rotating cam rotating shaft 14-3 can drive the driving cam 14-5 installed thereon to rotate around the axis of the cam rotating shaft 14-3, and then drive the reciprocating frame mechanism 14-4 in rolling contact with the driving cam 14-5 to move longitudinally, and then drive the first screening structure 5, the second screening structure 6, the third screening structure 7 and the fourth screening structure 8 installed on the reciprocating frame mechanism 14-4 to vibrate up and down, and in the above vibrating process, glass beads of different particle sizes are intercepted on the corresponding screening structures, specifically: the particle size of the glass beads intercepted on the fourth screening structure 8 > the particle size of the glass beads intercepted on the third screening structure 7 > the particle size of the glass beads intercepted on the second screening structure 6 > the particle size of the glass beads intercepted on the first screening structure 5;

[0036] In addition, in the above screening process, the drying gas is blown into the screening drying box 3 by the air blower 18 and the hot air box body 17, and then the materials intercepted on each screening structure are subjected to drying operation, at the same time, the up and down vibration of each screening structure can also speed up the drying process of the glass beads, and the working efficiency of the screening device is improved.

Claims

1. A screening device for surface treatment of glass microbeads, characterized by: The utility model provides a kind of screening drying box, including box support (1), screening drying box (3) is installed on box support (1), outlet is opened in the lower part of screening drying box (3) and lower control valve (2) is installed;Box cover (13) is installed at the top opening of screening drying box (3), inlet (11) is provided on box cover (13) and upper control valve (12) is installed;First screening structure (5), second screening structure (6), third screening structure (7) and fourth screening structure (8) are sequentially arranged in the inner cavity of screening drying box (3) from bottom to top, the screen hole on first screening structure (5), second screening structure (6), third screening structure (7) and fourth screening structure (8) gradually increases in turn, and the screen surface size of first screening structure (5), second screening structure (6), third screening structure (7) and fourth screening structure (8) gradually decreases in turn;A plurality of windows are opened on the side of screening drying box (3) and sealing plate (4) is sealingly installed on each window, and multiple sealing plates (4) are respectively and correspondingly arranged with first screening structure (5), second screening structure (6), third screening structure (7) and fourth screening structure (8);It also includes vibration mounting assembly (14) installed in screening drying box (3), for driving first screening structure (5), second screening structure (6), third screening structure (7) and fourth screening structure (8) to move longitudinally and reciprocally synchronously, and it also includes rotary motor (15) for driving vibration mounting assembly (14);It also includes air blower (18), hot air box (17) is installed at the air outlet of air blower (18), heating pipe (16) is installed in hot air box (17), and the air outlet of hot air box (17) is connected with the inner cavity of screening drying box (3) through pipeline.

2. The screening apparatus for surface treatment of glass microbeads according to claim 1, characterized in that: Vibration mounting assembly (14) includes two sets of vibration frame assemblies (14-1) oppositely arranged in screening drying box (3), upper guide seat (14-6) and lower guide seat (14-2) are arranged on each vibration frame assembly (14-1) in an up-down manner, reciprocating frame mechanism (14-4) is slidingly connected to upper guide seat (14-6) and lower guide seat (14-2), two sets of reciprocating frame mechanisms (14-4) are symmetrically arranged at an angle of 180 degrees, driving cam (14-5) is arranged between the two sets of reciprocating frame mechanisms (14-4) and rolls in contact with the two sets of reciprocating frame mechanisms (14-4), cam shaft (14-3) is installed between the two sets of driving cams (14-5), two sets of slide groove mounting plates (14-7) are arranged on each reciprocating frame mechanism (14-4) in an up-down manner, and the two ends of each screening structure are slidingly connected to the two sets of slide groove mounting plates (14-7) on the same horizontal plane.

3. The screening apparatus for surface treatment of glass microbeads according to claim 2, characterized in that: Vibration frame assembly (14-1) includes two sets of support rod plates (14-1-1) arranged in an up-down manner, and two sets of guide support rods (14-1-2) are fixedly connected between the two sets of support rod plates (14-1-1) and arranged longitudally.

4. The sieving device for surface treatment of glass microspheres as described in claim 2, characterized in that: reciprocating... The frame mechanism (14-4) comprises two groups of lifting guide rods (14-4-2) which are slidably connected with the guide seat through linear bearings, the guide rod mounting plates (14-4-1) and the roller mounting frames (14-4-6) are respectively mounted at the two ends of the two groups of lifting guide rods (14-4-2), the transfer rollers (14-4-7) which are in rolling contact with the driving cam (14-5) are rotatably connected on the roller mounting frames (14-4-6); the spring limiting pieces (14-4-4) which are located between the guide seat and the roller mounting frames (14-4-6) are threadedly connected on each lifting guide rod (14-4-2), the first buffer springs (14-4-3) and the second buffer springs (14-4-5) are respectively arranged on each lifting guide rod (14-4-2), and the first buffer springs (14-4-3) and the second buffer springs (14-4-5) are respectively located on the two sides of the spring limiting piece (14-4-4) and are in tight contact with the top of the spring limiting piece (14-4-4).

5. The screening apparatus for surface treatment of glass microbeads according to claim 1, wherein: The driving cam (14-5) has two groups of far ends, and the two far ends are symmetrically arranged at 180 degrees.

6. The screening apparatus for surface treatment of glass microbeads according to claim 1, wherein: The first screening structure (5) comprises a screening mounting plate (5-1) on which at least two groups of sliding blocks (5-5) are mounted, the sliding blocks (5-5) are in T-shaped structure and are slidably connected with the sliding grooves formed in the vibration mounting assembly (14); the mounting slots are formed in the middle part of the screening mounting plate (5-1), the perforated plate mounting box (5-2) is inserted and mounted at the mounting slots, the screening perforated plate (5-3) is mounted at the bottom opening of the perforated plate mounting box (5-2), and the clamping folded edges (5-4) which can be clamped with the edges of the screening mounting plate (5-1) are formed by bending the two opposite edges of the perforated plate mounting box (5-2) downward.

7. The screening apparatus for surface treatment of glass microbeads according to claim 1, wherein: The material guide hopper (9) is mounted on the inner cavity top surface of the box cover (13), the material guide hopper (9) is in a funnel-shaped structure, the impurity filtering screen (10) is mounted in the material guide hopper (9) for filtering impurities in the rinsing.

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