Multi-stage feldspar powder screening equipment

By designing the sliding screening box and collection box structure of the multi-stage screening equipment, the problems of automatic collection of feldspar powder after screening and dust prevention are solved, and the convenience and environmental protection of the equipment are improved.

CN223417704UActive Publication Date: 2025-10-10HEBEI JINGCHENG MINERAL PROD CO LTD
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Patent Information

Application Number
CN202422777363.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-10
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The existing feldspar powder screening equipment accumulates stone powder on the ground during discharge, requiring workers to collect it manually, which is inconvenient to use. In addition, the dust easily floats around during the screening process, polluting the air.

Method used

A multi-stage screening device for feldspar powder is designed, which includes a first and a second slidable screening box, equipped with a drive assembly to make the box shake for screening, an integrated collecting box to collect the screened powder, and a cover to close the opening to prevent dust from spreading.

Benefits of technology

It realizes automatic powder collection, reduces the need for manual cleaning, avoids dust pollution, and improves the convenience of use and the environmental friendliness of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of multi-stage screening equipment, and discloses feldspar powder multi-stage screening equipment which comprises a screening box internally provided with a screening cavity, a discharging port is formed in the lower end of the screening box, and a first screening box and a second screening box are arranged in the screening cavity. A plurality of first filtering holes and second filtering holes are formed in the bottom wall of the first screening box and the bottom wall of the second screening box correspondingly, a dismounting and mounting assembly is arranged on the second screening box, a fixing plate is arranged at an opening of the screening cavity, a driving assembly is arranged on the fixing plate, a vertical plate is arranged at the lower end of the screening box, a collecting box is arranged on the vertical plate, and a mounting assembly is arranged on the vertical plate. By means of the structure, the vertical plate is installed at the discharging port through the installation assembly, screened feldspar powder can be collected in the collecting box, after the collecting box completes collection of the feldspar powder, installation of the installation assembly on the vertical plate is removed, the collecting box slides out of the discharging port, and therefore workers can use the collecting box conveniently.
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Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage screening equipment, in particular to a multi-stage screening equipment for feldspar powder. Background Art

[0002] With the advancement of science and technology and society, equipment in various fields has been greatly developed. Stone powder is the powder of stone, and the types of stone minerals are different, and the types of stone powder are also different, including: limestone, talc, quartz powder, feldspar powder, etc. Among them, after the feldspar powder is ground, it needs to be screened by screening equipment to ensure that the particle size of the feldspar powder is within an appropriate range.

[0003] For example, the patent with announcement number CN213287644U discloses a natural stone powder screening dust protection device for real stone paint production. Although this natural stone powder screening dust protection device for real stone paint production is provided with a vacuum cleaner and a dust suction pipe, and the two are used in conjunction with each other, the vacuum cleaner can adsorb and collect the dust generated during the screening of the natural stone powder for real stone paint production, which effectively prevents the dust from adhering to the inner wall of the device and extends the service life of the device; however, when this natural stone powder screening dust protection device for real stone paint production is actually used, when the sieved stone powder is discharged through the discharge pipe, the stone powder will accumulate on the ground, so that the staff needs to collect the stone powder accumulated on the ground, which makes it inconvenient for the staff to use, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-stage screening device for feldspar powder to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-stage screening device for feldspar powder comprises a screening box with a screening cavity therein, a discharge port connected to the screening cavity is provided at the lower end of the screening box, a slidable first screening box and a second screening box are provided in the screening cavity, a plurality of first filter holes and a second filter hole are provided on the bottom walls of the first screening box and the second screening box respectively, a disassembly assembly for mounting the second screening box on the bottom wall of the first screening box is provided on the second screening box, a fixing plate is provided at the opening of the screening cavity, a driving assembly for driving the first screening box and the second screening box to swing back and forth is provided on the fixing plate, a vertical plate is provided at the lower end of the screening box, a collecting box is provided on the vertical plate which passes through the discharge port and extends into the screening cavity, and a mounting assembly is provided on the vertical plate for mounting it on the outer wall of the screening box.

[0007] Preferably, the bottom end surface of the first screening box extends downward to form an extension portion, and opposite side walls of the second screening box are provided with opposite limiting rods;

[0008] The disassembly and assembly component includes a slide plate arranged outside the opposite side wall of the second screening box. Both ends of the slide plate are provided with limit holes for the corresponding limit rods to pass through. The slide plate is also provided with an insertion rod that can pass through the corresponding extension part. The slide plate is installed on the outer wall of the second screening box by bolts.

[0009] Preferably, opposite handles are provided on the upper end surface of the first screening box.

[0010] Preferably, a support is provided on one side wall of the first screening box, and a protruding rod is provided on the support;

[0011] The driving assembly includes a circular plate which is arranged on the lower end surface of the fixed plate and can rotate. A round rod is provided on the lower end surface of the circular plate near the edge. A hinged rod is provided between the round rod and the convex rod. The two ends of the hinged rod are respectively hingedly connected to the round rod and the convex rod. The rotation of the circular plate is used to drive the support to move back and forth, so as to realize the shaking of the first screening box and the second screening box.

[0012] Preferably, a motor for driving the circular plate to rotate is provided on the upper end surface of the fixed plate.

[0013] Preferably, a positioning block is provided on the side wall of the screening box;

[0014] The mounting assembly includes a box body arranged on the vertical plate, a cavity is provided in the box body, a slidable movable plate is provided in the cavity, a relative positioning rod is provided on the upper end surface of the movable plate, and a spring is relatively provided in the cavity for pushing the positioning rod on the movable plate to insert into the positioning block to realize the installation of the vertical plate on the screening box. A movable part is also provided on the box body for driving the positioning rod to slide out of the positioning block.

[0015] Preferably, a penetrating rod with one end penetrating the box body is provided on the lower end surface of the movable plate;

[0016] The moving part includes a connecting plate arranged on the lower end surface of the box body, the two ends of the connecting plate are respectively connected to the corresponding through rods, and a horizontal plate is provided on the lower end surface of the connecting plate. The horizontal plate is provided with a handle for driving the positioning rod on the moving plate to slide out of the positioning block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model installs the vertical plate at the discharge port through the installation component, so that the feldspar powder after screening will fall into the collection box for collection. When the collection box completes the collection of the feldspar powder, the staff releases the installation of the vertical plate by the installation component, so that the collection box slides out from the discharge port, thereby discharging the feldspar powder from the screening chamber. Compared with the existing one, this kind of feldspar powder multi-stage screening equipment does not require the staff to manually collect the feldspar powder after screening during actual use, thereby facilitating the actual use of the staff.

[0019] 2. In the utility model, when the first screening box and the second screening box are screening the feldspar powder, the cover plate is rotated so that a section of the cover plate overlaps the fixed plate. At this time, the cover plate closes the upper opening of the screening chamber, thereby preventing the dust in the feldspar powder from floating around and polluting the air when the first screening box and the second screening box are screening the feldspar powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a multi-stage screening device for feldspar powder in the present utility model.

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the screening box in the present invention.

[0022] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Figure 4 This is a structural diagram of the second screening box installed on the first screening box in the present invention.

[0024] Figure 5 This is a schematic diagram of the explosion structure of the slide plate on the second screening box in the utility model.

[0025] Figure 6 This is a schematic structural diagram of the collecting box on the vertical plate in the utility model.

[0026] Figure 7 It is a schematic cross-sectional structural diagram of the box body in the present utility model.

[0027] Figure 8 It is a structural diagram of the screening box in the utility model.

[0028] The meaning of each number in the figure is:

[0029] 100, screening box; 101, screening chamber; 102, positioning block; 110, fixing plate; 111, motor; 120, vertical plate; 130, box body; 140, overlapping plate; 150, handle; 160, cover plate; 170, first screening box;

[0030] 201, extension portion; 210, second screening box; 220, circular plate;

[0031] 300, support; 301, convex rod; 310, round rod; 320, hinged rod;

[0032] 400, limit rod; 410, slide plate; 420, bolt; 430, abutment plate;

[0033] 501, limiting hole; 510, insertion rod;

[0034] 600, collection box; 610, positioning rod; 620, connecting plate; 621, horizontal plate; 622, handle;

[0035] 701, cavity; 710, movable plate; 720, spring; 730, penetrating rod;

[0036] 801. Discharge port. DETAILED DESCRIPTION

[0037] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0038] The following is combined with Figures 1-8 This embodiment is further described in detail.

[0039] like Figure 1 As shown, a multi-stage screening device for feldspar powder in this embodiment includes a screening box 100 with a screening cavity 101 therein, a discharge port 801 communicating with the screening cavity 101 is provided at the lower end of the screening box 100, a first slidable screening box 170 and a second slidable screening box 210 are provided in the screening cavity 101, a plurality of first filter holes and a second filter hole are respectively provided on the bottom walls of the first slidable screening box 170 and the second slidable screening box 210, and a plurality of first filter holes and a second filter hole are respectively provided on the bottom walls of the second slidable screening box 210. 0 is installed on the bottom wall of the first screening box 170, a fixed plate 110 is provided at the opening of the screening chamber 101, and a driving assembly for driving the first screening box 170 and the second screening box 210 to rock back and forth is provided on the fixed plate 110. The lower end of the screening box 100 is provided with a vertical plate 120, and the vertical plate 120 is provided with a collecting box 600 that passes through the discharge port 801 and extends into the screening chamber 101. The vertical plate 120 is provided with a mounting assembly for mounting it on the outer wall of the screening box 100.

[0040] In this embodiment, the upper end of the screening chamber 101 is provided with an opening, and the second screening box 210 is installed on the bottom wall of the first screening box 170 by means of an installation and disassembly assembly. Then, the first screening box 170 and the second screening box 210 are slidably overlapped and installed in the screening chamber 101. At this time, the feldspar powder is poured into the first screening box 170 from the opening of the screening chamber 101. Then, the first screening box 170 and the second screening box 210 are driven to shake by the shaking assembly on the fixing plate 110, so that the first screening box 170 can screen the feldspar powder in the first screening box 170 through the first filtering hole, and the second screening box 210 can screen the feldspar powder in the second screening box 210 through the second filtering hole. In this way, multi-stage screening of the feldspar powder is achieved, so that the feldspar powder with the required suitable particle size can be further screened out, and the use effect is better.

[0041] The aperture of the second filtering hole is smaller than the aperture of the first filtering hole, so that the feldspar powder poured into the first screening box 170 from the opening of the screening cavity 101 can be filtered and screened in sequence through the first screening box 170 and the second screening box 210.

[0042] The collecting box 600 is fixedly installed on the vertical plate 120. When the first screening box 170 and the second screening box 210 screen the feldspar powder, the vertical plate 120 is fixedly installed on the side wall of the screening box 100 at the discharge port 801 through the mounting assembly, so that the collecting box 600 on the vertical plate 120 passes through the discharge port 801 and extends into the screening cavity 101. At this time, the feldspar powder screened through the first screening box 170 and the second screening box 210 falls into the collecting box 600 for collection. When the collecting box 600 completes the collection of the feldspar powder, the worker releases the installation of the mounting assembly on the vertical plate 120, so that the worker pulls the vertical plate 120 outward. The vertical plate 120 can drive the collecting box 600 in the screening cavity 101 to slide out of the discharge port 801, so that the feldspar powder can be discharged from the screening cavity 101. Compared with the prior art, the feldspar multi-stage screening device does not need to be manually collected by the worker after screening, so as to facilitate the actual use of the worker.

[0043] The opposite side walls of the screening cavity 101 are fixedly installed with the overlapping plates 140. The overlapping plates 140 are arranged along the shaking direction of the first screening box 170. The upper end of the first screening box 170 extends outward and is provided with the abutting plate 430. The abutting plate 430 is slidably overlapped on the overlapping plate 140, so as to achieve the sliding installation of the first screening box 170 and the second screening box 210 in the screening cavity 101.

[0044] When it is necessary to clean the feldspar powder on the first screening box 170 and the second screening box 210, the first screening box 170 is lifted upward, so that the first screening box 170 and the second screening box 210 slide out of the screening cavity 101. Then, the worker releases the installation of the second screening box 210 on the first screening box 170 through the dismounting assembly, so that the worker can clean the feldspar powder in the first screening box 170 and the second screening box 210 in sequence.

[0045] The opposite handles 150 are fixedly installed on the upper end face of the first screening box 170. The handles 150 facilitate the worker to slide the first screening box 170 out of the screening cavity 101.

[0046] Among them, a rotatable cover plate 160 is hingedly mounted on the upper end surface of the screening box 100 (existing structure). When the first screening box 170 and the second screening box 210 screen the feldspar powder, the cover plate 160 is rotated so that one end of the cover plate 160 overlaps the fixed plate 110. At this time, the cover plate 160 can close the upper end opening of the screening chamber 101, thereby preventing the dust in the feldspar powder from being scattered and polluting the air when the first screening box 170 and the second screening box 210 screen the feldspar powder.

[0047] During actual use, the fixing plate 110 is fixedly mounted at the upper opening of the screening chamber 101 , thereby enabling the installation of the driving assembly on the screening box 100 .

[0048] like Figure 1-5 As shown, in this embodiment, the bottom end surface of the first screening box 170 extends downward to form an extension portion 201, and the opposite side walls of the second screening box 210 are provided with opposite limiting rods 400;

[0049] The disassembly and assembly components include a slide plate 410 provided outside the opposite side wall of the second screening box 210. Both ends of the slide plate 410 are provided with a limiting hole 501 for the corresponding limiting rod 400 to pass through. The slide plate 410 is also provided with an insertion rod 510 that can pass through the corresponding extension part 201. The slide plate 410 is installed on the outer wall of the second screening box 210 by a bolt 420.

[0050] In this embodiment, by setting the extension portion 201, the limiting rod 400, the slide plate 410, the limiting hole 501, the insertion rod 510 and the bolt 420, the extension portion 201 is extended into the second screening box 210 in actual use, and corresponds to the side wall of the second screening box 210 on which the limiting rod 400 is installed. By passing the limiting rod 400 through the corresponding limiting hole 501, the slide plate 410 is installed on the side wall of the second screening box 210 by using the bolt 420. At this time, the insertion rod 510 passes through the side wall of the second screening box 210 and is inserted into the corresponding extension portion 201, thereby realizing the installation of the second screening box 210 on the bottom wall of the first screening box 170;

[0051] The installation of the slide plate 410 on the outer wall of the second screening box 210 is released by the bolt 420, so that the insertion rod 510 slides out from the extension portion 201, thereby releasing the installation of the second screening box 210 on the bottom wall of the first screening box 170.

[0052] like Figure 1-3 As shown, in this embodiment, a support 300 is provided on one side wall of the first screening box 170, and a protruding rod 301 is provided on the support 300;

[0053] The driving assembly includes a circular plate 220 which is arranged on the lower end surface of the fixed plate 110 and can rotate. A round rod 310 is provided on the lower end surface of the circular plate 220 near the edge. A hinged rod 320 is provided between the round rod 310 and the convex rod 301. The two ends of the hinged rod 320 are respectively hingedly connected to the round rod 310 and the convex rod 301. The rotation of the circular plate 220 is used to drive the support 300 to move back and forth, thereby realizing the shaking of the first screening box 170 and the second screening box 210.

[0054] In this embodiment, by setting the support 300, the convex rod 301, the circular plate 220, the round rod 310 and the hinged rod 320, the support 300 is fixed on the first screening box 170, the convex rod 301 is fixedly installed on the support 300, and the round rod 310 is fixedly installed on the circular plate 220. When the circular plate 220 rotates, the round rod 310 rotates along the circumference of the circular plate 220. At this time, the round rod 310 can drive the convex rod 301 to move back and forth through the hinged rod 320. The movement of the convex rod 301 through the support 300 can drive the first screening box 170 to move back and forth, thereby driving the first screening box 170 and the second screening box 210 to shake, thereby screening the feldspar powder;

[0055] One end of the hinged rod 320 is rotatably mounted on the round rod 310 via a bearing, and the other end of the hinged rod 320 is provided with a round hole for the convex rod 301 to be inserted. In actual use, the convex rod 301 is a screw. When the screw is inserted into the round hole and threadedly connected to the support 300, the hinged rod 320 is hingedly mounted on the round rod 310 and the convex rod 301 at both ends.

[0056] The upper end surface of the fixed plate 110 is fixedly mounted with a motor 111 for driving the circular plate 220 to rotate. The output shaft of the motor 111 passes through the fixed plate 110 so that the circular plate 220 can be fixedly mounted on the output shaft of the motor 111. At this time, the circular plate 220 can be driven by the motor 111 to rotate continuously.

[0057] In actual use, when the first screening box 170 is taken out from the opening of the screening chamber 101 , the protruding rod 301 needs to be removed to release the hinge connection between the hinge rod 320 and the support 300 .

[0058] like Figure 1-8 As shown, in this embodiment, a positioning block 102 is provided on the side wall of the screening box 100;

[0059] The mounting assembly includes a box body 130 arranged on the vertical plate 120, a cavity 701 is provided in the box body 130, a slidable movable plate 710 is provided in the cavity 701, a relative positioning rod 610 is provided on the upper end surface of the movable plate 710, and a spring 720 is relatively provided in the cavity 701 for pushing the positioning rod 610 on the movable plate 710 to insert into the positioning block 102, thereby realizing the installation of the vertical plate 120 on the screening box 100, and a movable part for driving the positioning rod 610 to slide out of the positioning block 102 is also provided on the box body 130.

[0060] In this embodiment, by setting the positioning block 102, the box body 130, the cavity 701, the movable plate 710, the positioning rod 610, the spring 720 and the movable member, the positioning block 102 is fixedly mounted on the screening box 100, the box body 130 is fixedly mounted on the vertical plate 120, and the positioning rod 610 is fixedly mounted on the movable plate 710. When the spring 720 pushes the movable plate 710 to move upward, the positioning rod 610 on the movable plate 710 will be inserted into the positioning block 102, thereby realizing the installation of the vertical plate 120 on the screening box 100;

[0061] During actual use, the movable plate 710 is driven downward by the movable member, so that the positioning rod 610 on the movable plate 710 slides out from the positioning block 102, thereby releasing the installation of the vertical plate 120 on the screening box 100, so that the vertical plate 120 can drive the collecting box 600 to slide out of the screening chamber 101.

[0062] like Figure 1-7 As shown, in this embodiment, a penetrating rod 730 is provided on the lower end surface of the movable plate 710, one end of which penetrates the box body 130;

[0063] The moving part includes a connecting plate 620 arranged on the lower end surface of the box body 130, and the two ends of the connecting plate 620 are respectively connected to the corresponding through rods 730. A horizontal plate 621 is provided on the lower end surface of the connecting plate 620, and a handle 622 is provided on the horizontal plate 621 for driving the positioning rod 610 on the moving plate 710 to slide out of the positioning block 102.

[0064] When the handle 622 is pulled downward, the handle 622 drives the connecting plate 620 to move downward, and the connecting plate 620 moves downward through the through-rod 730, thereby driving the movable plate 710 downward through the through-rod 730, so that the positioning rod 610 on the movable plate 710 slides out of the positioning block 102. At this time, the handle 622 is pulled outward to slide the collecting box 600 on the vertical plate 120 out of the discharge port 801.

[0065] During actual use, the spring 720 is sleeved on the corresponding through rod 730 , so that the spring 720 is installed in the cavity 701 .

[0066] Working principle: First, install the second screening box 210 at the bottom end of the first screening box 170 through the disassembly assembly, then slide the first screening box 170 and the second screening box 210 and install them on the overlapping plate 140. At this time, pour the feldspar powder into the first screening box 170, then rotate the cover plate 160 to close the screening chamber 101. At this time, the circular plate 220 is driven to rotate by the motor 111, and the round rod 310 on the circular plate 220 drives the convex rod 301 to move through the hinge rod 320. The first screening box 170 and the second screening box 210 are shaken, so that the feldspar powder is screened in multiple stages, and the screened feldspar powder will fall into the collecting box 600 for collection; when the collecting box 600 completes the collection of the feldspar powder, the handle 622 can be used to drive the positioning rod 610 on the movable plate 710 to slide out of the positioning block 102. At this time, by pulling the handle 622 outward, the vertical plate 120 can be driven to slide the collecting box 600 out of the discharge port 801, that is, the feldspar powder can be discharged from the screening cavity 101.

[0067] In short, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention patent.

Claims

1. A multi-stage screening device for feldspar powder, comprising a screening box (100) with a screening cavity (101) therein, a discharge port (801) communicating with the screening cavity (101) being provided at the lower end of the screening box (100), characterized in that: A slidable first screening box (170) and a second screening box (210) are provided in the screening chamber (101), and a plurality of first filter holes and a second filter hole are respectively provided on the bottom walls of the first screening box (170) and the second screening box (210), and a disassembly assembly for mounting the second screening box (210) on the bottom wall of the first screening box (170) is provided on the second screening box (210), a fixing plate (110) is provided at the opening of the screening chamber (101), and a driving assembly for driving the first screening box (170) and the second screening box (210) to swing back and forth is provided on the fixing plate (110), and a vertical plate (120) is provided at the lower end of the screening box (100), and a collecting box (600) is provided on the vertical plate (120) and extends into the screening chamber (101) through a material outlet (801), and a mounting assembly for mounting it on the outer wall of the screening box (100) is provided on the vertical plate (120).

2. The multi-stage screening device for feldspar powder according to claim 1, characterized in that: The bottom end surface of the first screening box (170) extends downward to form an extension portion (201), and opposite side walls of the second screening box (210) are provided with opposite limiting rods (400); The disassembly assembly comprises a slide plate (410) provided outside the opposite side wall of the second screening box (210), both ends of the slide plate (410) are provided with a limiting hole (501) for allowing the corresponding limiting rod (400) to pass through, and an insertion rod (510) that can pass through the corresponding extension portion (201) is further provided on the slide plate (410), and the slide plate (410) is mounted on the outer side wall of the second screening box (210) by means of bolts (420).

3. The multi-stage screening device for feldspar powder according to claim 2, characterized in that: A corresponding handle (150) is provided on the upper end surface of the first screening box (170).

4. The multi-stage screening device for feldspar powder according to claim 2, characterized in that: A support (300) is provided on one side wall of the first screening box (170), and a protruding rod (301) is provided on the support (300); The driving assembly comprises a circular plate (220) which is arranged on the lower end surface of the fixed plate (110) and is rotatable. A round rod (310) is provided on the lower end surface of the circular plate (220) near the edge. A hinged rod (320) is provided between the round rod (310) and the convex rod (301). The two ends of the hinged rod (320) are respectively hingedly connected to the round rod (310) and the convex rod (301). The rotation of the circular plate (220 is used to drive the support (300) to reciprocate, thereby achieving the shaking of the first screening box (170) and the second screening box (210).

5. The multi-stage screening device for feldspar powder according to claim 4, characterized in that: A motor (111) for driving the circular plate (220) to rotate is provided on the upper end surface of the fixed plate (110).

6. The multi-stage screening device for feldspar powder according to claim 1, characterized in that: A positioning block (102) is provided on the side wall of the screening box (100); The mounting assembly includes a box body (130) arranged on the vertical plate (120), a cavity (701) is provided in the box body (130), a slidable movable plate (710) is provided in the cavity (701), a relative positioning rod (610) is provided on the upper end surface of the movable plate (710), and a spring (720) is relatively provided in the cavity (701) for pushing the positioning rod (610) on the movable plate (710) to insert into the positioning block (102), thereby realizing the installation of the vertical plate (120) on the screening box (100), and a movable member for driving the positioning rod (610) to slide out of the positioning block (102) is also provided on the box body (130).

7. The multi-stage screening device for feldspar powder according to claim 6, characterized in that: A penetrating rod (730) having one end penetrating the box body (130) is provided on the lower end surface of the movable plate (710); The movable member includes a connecting plate (620) provided on the lower end surface of the box body (130), the two ends of the connecting plate (620) are respectively connected to the corresponding through rods (730), a transverse plate (621) is provided on the lower end surface of the connecting plate (620), and a handle (622) is provided on the transverse plate (621) for driving the positioning rod (610) on the movable plate (710) to slide out from the positioning block (102).

Citation Information

Patent Citations

  • Natural stone powder screening dust protection device for real stone paint production

    CN213287644U