Glauberite mineral powder screening device
By designing a multi-stage screening device and utilizing a reciprocating drive mechanism, multi-stage screening of calcium nitrate powder is achieved, solving the problems of limited screening specifications and low efficiency in existing technologies, and realizing the effects of multi-specification screening and cost reduction.
Patent Information
- Application Number
- CN202520227665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing calcium nitrate powder screening devices can only screen a small number of different specifications, which cannot meet the screening needs of multiple specifications, and the screening efficiency is low and the cost is high.
Design a calcium nitrate ore powder screening device, including a machine box, screening box, storage hopper, feed inlet, multi-layer screening module and reciprocating drive mechanism, to achieve multi-stage screening through reciprocating motion, with the screening specifications decreasing in size sequentially. Equipped with discharge bag and discharge pipe, the controller is electrically connected to the drive mechanism to realize the synchronous screening of ore powder of various specifications.
It enables the screening of multiple mineral powders of different specifications at the same time, meets the requirements of various working conditions, improves screening efficiency, reduces the number of equipment, and lowers production costs.
Smart Images

Figure CN223832819U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of screening equipment technology, specifically to a screening device for calcium mirabilite powder. Background Technology
[0002] Glauber's salt is the only primary ore mineral in glauber's salt deposits. The occurrence and associated minerals of glauber's salt vary across different geological strata. During mining, a large amount of mineral powder is generated. To conserve resources, this powder can be screened for further utilization. However, current screening devices typically only allow for screening a small number of different sizes. When multiple sizes of screening are required, multiple different screening devices need to be configured, resulting in high costs and low screening efficiency. Utility Model Content
[0003] The main purpose of this application is to provide a calcium nitrate powder screening device, which aims to solve the defect of the limited screening size in the existing technology.
[0004] This application achieves the above objectives through the following technical solutions:
[0005] A screening device for calcium mirabilite powder includes a casing;
[0006] A screening box is slidably disposed within a machine housing; a storage hopper is provided on the top of the machine housing, and a feed inlet is provided on the top of the screening box, with the outlet of the storage hopper always facing the feed inlet; several layers of screening modules are sequentially arranged inside the screening box along the height direction of the machine housing, and the particle size of each screening module decreases sequentially along the height direction of the machine housing; the screening box is also provided with several discharge bags for discharging mineral powder of different specifications.
[0007] A reciprocating drive mechanism is disposed inside the housing and is poweredly connected to the screening box to control the screening box to slide back and forth inside the housing.
[0008] A plurality of discharge pipes are provided, each discharge pipe being disposed on the machine housing and each discharge pipe being connected to each discharge bag;
[0009] A controller is mounted on the chassis and is electrically connected to the reciprocating drive mechanism.
[0010] Optionally, an adjusting plate is slidably provided at the outlet end of the storage hopper, with one end of the adjusting plate located outside the storage hopper; a support ring is also provided inside the storage hopper, and the support ring is in contact with the adjusting plate.
[0011] Optionally, the bottom of the machine casing is provided with several sliding grooves, and the bottom of the screening box is provided with several rollers, each of which is engaged in the sliding groove.
[0012] Optionally, each of the slides is provided with a limit block at both ends, and the limit block is also provided with a micro switch electrically connected to the controller.
[0013] Optionally, along the movement direction of the screening box, a limit rod is also provided inside the casing, and a limit sleeve is provided on the screening box. The limit sleeve and the limit rod are slidably connected through a linear motion bearing.
[0014] Optionally, the screening module includes a fixed plate and screening screens. The fixed plate has an annular structure, and each side of the fixed plate is connected to the inner wall of the screening box. Along the height direction of the box, the screening particle size of each screening screen decreases sequentially.
[0015] Optionally, the edge of the screening screen is provided with a connecting piece, the fixing plate is provided with a plurality of connecting screws, the connecting piece is provided with a plurality of connecting screw holes, each of the connecting screw holes is inserted and connected to each of the connecting screws, and each of the connecting screws is threaded with a connecting nut.
[0016] Optionally, a material-gathering plate is also provided at the end of the fixing plate that is directly opposite the discharge bag. The material-gathering plate is arranged in a figure-eight shape, and a connecting pipe is provided at the outlet end of the material-gathering plate. The discharge bag is connected to the connecting pipe.
[0017] Optionally, each of the fixing plates is inclinedly arranged inside the screening box; the discharge bag is provided with a connector, which is plugged into the connecting pipe.
[0018] Optionally, the reciprocating drive mechanism includes a drive motor and an eccentric disk connected by a power source. A drive link is connected to the eccentric disk, and the drive link is rotatably connected to the screening box.
[0019] Compared with the prior art, this application has the following beneficial effects:
[0020] This application includes a chassis, within which a screening box is slidably disposed. A storage hopper is disposed on the top of the chassis, and a feed inlet is disposed on the top of the screening box. The outlet end of the storage hopper is always directly opposite the feed inlet. Along the height direction of the screening box, several layers of screening modules are sequentially disposed within the screening box, and the screening particle size of each screening module decreases sequentially along the height direction of the chassis. The screening box is also provided with several discharge bags for discharging mineral powder of different specifications. A reciprocating drive mechanism connected to the screening box is also disposed within the chassis. The chassis is also provided with a controller and several discharge pipes, each of which is connected to a discharge bag. The controller is electrically connected to the reciprocating drive mechanism.
[0021] In use, the calcium sulfate powder to be screened enters the screening box through the feed inlet. At the same time, the screening box is continuously reciprocated within the machine by the reciprocating drive mechanism, thereby achieving the screening of the mineral powder. Since the particle size of each screening module decreases sequentially along the height of the machine, multi-stage synchronous screening of the mineral powder is achieved. The residual material after screening will gradually move towards the discharge bag under its own inertia and will eventually be discharged through the discharge pipe.
[0022] Compared with the prior art, the screening device described in this application can screen multiple mineral powders of different specifications at the same time, not only screening more specifications to meet various working conditions, but also effectively improving screening efficiency.
[0023] Secondly, this application can achieve screening of various mineral powders of different specifications with a single device, effectively reducing the number of screening machines and thus reducing production costs. Attached Figure Description
[0024] Figure 1 A schematic diagram of a calcium mirabilite powder screening device provided in this application;
[0025] Figure 2 An exploded view of a calcium nitrate powder screening device provided in this application;
[0026] Figure 3 A cross-sectional view of a calcium mirabilite powder screening device provided in this application;
[0027] Figure 4 This application provides a side sectional view of a calcium mirabilite powder screening device;
[0028] Reference numerals: 1-Chassis, 2-Screening box, 3-Storage hopper, 4-Inlet, 5-Discharge bag, 6-Discharge pipe, 7-Controller, 8-Adjusting plate, 9-Support ring, 10-Slide groove, 11-Roller, 12-Limit block, 13-Micro switch, 14-Limit rod, 15-Limit sleeve, 16-Linear motion bearing, 17-Fixed plate, 18-Screwing screen, 19-Connecting piece, 20-Connecting screw, 21-Connecting screw hole, 22-Connecting nut, 23-Gathering plate, 24-Connecting pipe, 25-Plug, 26-Drive motor, 27-Eccentric disc, 28-Drive connecting rod.
[0029] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0034] Implementation Method 1
[0035] Reference Figures 1 to 4This embodiment, as an optional embodiment of this application, discloses a calcium nitrate powder screening device, including a housing 1 and a screening box 2. Along the length direction of the housing 1, a plurality of sliding grooves 10 are provided on the bottom surface of the housing 1, and a plurality of rollers 11 are provided on the bottom of the screening box 2. Each roller 11 is respectively engaged in each of the sliding grooves 10, thereby realizing the sliding connection between the screening box 2 and the housing 1.
[0036] Meanwhile, along the length of the chute 10, limit blocks 12 are provided at both ends of the chute 10. Micro switches 13 are provided on the limit blocks 12. The cooperation of the limit blocks 12 and the micro switches 13 can limit the movement position of the screening box 2, thereby improving the safety and reliability of the equipment operation.
[0037] Furthermore, along the movement direction of the screening box 2, at least one limiting rod 14 is also provided on the side wall of the housing 1, and the screening box 2 is provided with the same number of limiting sleeves 15, and each of the limiting sleeves 15 is slidably connected to each of the limiting rods 14 through a linear motion bearing 16.
[0038] The position of the screening box 2 can be further limited by the limiting rod 14, ensuring that it can only move back and forth along the length of the chute 10, thereby improving the stability of the equipment operation.
[0039] Furthermore, a storage hopper 3 is provided on the top of the casing 1, with the bottom of the storage hopper 3 being its outlet end. An adjusting plate 8 is slidably inserted into the outlet end of the storage hopper 3, and the other end of the adjusting plate 8 extends out of the storage hopper 3.
[0040] Meanwhile, a support ring 9 is also provided inside the storage hopper 3, and the support ring 9 is in close contact with the adjusting plate 8;
[0041] The size of the outlet end of the storage hopper 3 can be controlled by manually pulling the adjustment plate 8, thereby controlling the speed at which calcium nitrate powder enters the screening box 2, meeting various adjustment requirements. Moreover, its structure is simple and easy to adjust.
[0042] A feed inlet 4 is provided at the top of the screening box 2, and the outlet end of the storage hopper 3 is always directly facing the feed inlet 4. Along the height direction of the screening box 2, several layers of screening modules are arranged sequentially inside the screening box 2. The screening module includes a fixed plate 17 and a screening screen 18. The fixed plate 17 is a flat plate with a material feeding hole in the middle, so the fixed plate 17 has an overall annular structure. The edge of the fixed plate 17 is connected to the inner wall of the screening box. The edge of the screening screen 18 is provided with a connecting piece 19. Several connecting screws 20 are provided on the fixed plate 17, and several connecting screw holes 21 are provided on the connecting piece 19. Each connecting screw hole 21 is inserted and connected to each connecting screw 20. Each connecting screw 20 is threaded with a connecting nut 22.
[0043] The above structure enables quick connection between the fixed plate 17 and the screening screen 18, while reducing the difficulty of equipment maintenance; secondly, different specifications of screening screens can be replaced according to actual conditions.
[0044] Furthermore, along the height direction of the screening box 2, the screening particle size of each screening screen 18 decreases sequentially;
[0045] It should be noted that the cavity between any two adjacent fixed plates 17 is a screening cavity. Along the length of the screening box 2, a number of discharge bags 5 are also provided at one end of the screening box 2. Each discharge bag 5 adopts a soft cloth bag structure to avoid breakage during the movement of the screening box 2.
[0046] The end of each fixing plate 17 facing the discharge bag 5 is inclined toward the bottom of the screening box 2, that is, each fixing plate 17 is inclined in the screening box 2 to discharge material by gravity.
[0047] Meanwhile, each of the fixed plates 17 is also provided with a material gathering plate 23 at the end opposite to the discharge bag 5. The material gathering plate 23 is arranged in a figure-eight shape. The outlet end of the material gathering plate 23 is provided with a connecting pipe 24. One end of each discharge bag 5 is provided with a plug 25. The plug 25 is threadedly connected to the connecting pipe 24, thereby ensuring that each discharge bag 5 is connected to each screening chamber to realize material discharge.
[0048] Furthermore, along the length of the housing 1, a plurality of discharge pipes 6 are provided at one end of the housing 1. Along the height of the housing 1, the discharge pipes 6 are arranged sequentially. Furthermore, along the width of the housing 1, each discharge pipe 6 can be staggered to avoid interference. Each discharge pipe 6 is connected to each discharge bag 5 at the same height.
[0049] A reciprocating drive mechanism is also provided inside the casing 1. The reciprocating drive mechanism includes a drive motor 26 and an eccentric disk 27 connected to the power. A drive connecting rod 28 is connected to the eccentric disk 27. The drive connecting rod 28 is rotatably connected to the screening box 2.
[0050] The chassis 1 is also equipped with a controller 7, which is an electric switch and is electrically connected to the drive motor 26.
[0051] In use, the calcium sulfate powder to be screened enters the screening box through the feed inlet, and at the same time, the drive motor rotates. Then, the eccentric disc and the drive connecting rod pull the screening box to move back and forth continuously in the machine box, thereby realizing the screening of the mineral powder. Since the particle size of each screening module decreases sequentially along the height direction of the machine box, multi-stage synchronous screening of the mineral powder is achieved. The residual material after screening will gradually move towards the discharge bag under its own inertia and finally be discharged through the discharge pipe.
[0052] Compared with the prior art, the screening device described in this application can screen multiple mineral powders of different specifications at the same time, not only screening more specifications to meet various working conditions, but also effectively improving screening efficiency.
[0053] Secondly, this application can achieve screening of various mineral powders of different specifications with a single device, effectively reducing the number of screening machines and thus reducing production costs.
[0054] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A screening device for calcium sulfate powder, characterized in that, Includes chassis (1); A screening box (2) is slidably disposed inside the housing (1); a storage hopper (3) is provided on the top of the housing (1), and a feed inlet (4) is provided on the top of the screening box (2), with the outlet end of the storage hopper (3) always facing the feed inlet (4); along the height direction of the screening box (2), several layers of screening modules are arranged in sequence inside the screening box (2), and along the height direction of the housing (1), the screening specifications of each screening module decrease in sequence; the screening box (2) is also provided with several discharge bags (5) for discharging mineral powder of different specifications. A reciprocating drive mechanism is provided inside the housing (1) and is poweredly connected to the screening box (2) to control the screening box (2) to slide back and forth inside the housing (1). A plurality of discharge pipes (6) are provided on the machine box (1), and each discharge pipe (6) is connected to each discharge bag (5); A controller (7) is mounted on the chassis (1) and is electrically connected to the reciprocating drive mechanism.
2. The calcium sulfate powder screening device according to claim 1, characterized in that, An adjusting plate (8) is slidably provided at the outlet end of the storage hopper (3), with one end of the adjusting plate (8) located outside the storage hopper (3); a support ring (9) is also provided inside the storage hopper (3), and the support ring (9) is in close contact with the adjusting plate (8).
3. The calcium sulfate powder screening device according to claim 1, characterized in that, The bottom of the casing (1) is provided with several sliding grooves (10), and the bottom of the screening box (2) is provided with several rollers (11), each of the rollers (11) being inserted into each of the sliding grooves (10).
4. The calcium sulfate powder screening device according to claim 3, characterized in that, Each of the slide grooves (10) is provided with a limit block (12) at both ends, and a micro switch (13) electrically connected to the controller (7) is also provided on the limit block (12).
5. A calcium sulfate powder screening device according to claim 1 or 4, characterized in that, Along the direction of movement of the screening box (2), a limiting rod (14) is also provided inside the casing (1), and a limiting sleeve (15) is provided on the screening box (2). The limiting sleeve (15) and the limiting rod (14) are slidably connected through a linear motion bearing (16).
6. The calcium sulfate powder screening device according to claim 1, characterized in that, The screening module includes a fixed plate (17) and screening mesh (18). The fixed plate (17) has an annular structure. Each side of the fixed plate (17) is connected to the inner wall of the screening box (2). Along the height direction of the machine box (1), the screening particle size of each screening mesh (18) decreases sequentially.
7. A calcium sulfate powder screening device according to claim 6, characterized in that, The edge of the screening mesh (18) is provided with a connecting piece (19), and a plurality of connecting screws (20) are provided on the fixing plate (17). A plurality of connecting screw holes (21) are provided on the connecting piece (19). Each connecting screw hole (21) is inserted and connected to each connecting screw (20). Each connecting screw (20) is threaded with a connecting nut (22).
8. A calcium sulfate powder screening device according to claim 6 or 7, characterized in that, The fixed plate (17) is also provided with a material gathering plate (23) at the end opposite to the discharge bag (5). The material gathering plate (23) is arranged in a figure-eight shape. The outlet end of the material gathering plate (23) is provided with a connecting pipe (24). The discharge bag (5) is connected to the connecting pipe (24).
9. A calcium sulfate powder screening device according to claim 8, characterized in that, Each of the fixed plates (17) is inclinedly arranged inside the screening box (2); the discharge bag (5) is provided with a plug (25), and the plug (25) is plugged into the connecting pipe (24).
10. A calcium sulfate powder screening device according to claim 1, characterized in that, The reciprocating drive mechanism includes a drive motor (26) and an eccentric disk (27) connected to the power source. A drive link (28) is connected to the eccentric disk (27), and the drive link (28) is rotatably connected to the screening box (2).