Crushing and screening device for producing fine iron powder

Abstract

The utility model relates to the technical field of crushing and screening devices for fine powder production, and discloses a crushing and screening device for fine iron powder production, which comprises a support, a working table plate fixedly connected with the upper end of the support, a driving device fixedly connected with the upper side of the working table plate, a crushing device arranged on one side of the driving device, and a screening box arranged on the lower side of the working table plate, a shaking screen mechanism and a roller screen mechanism are arranged on the upper side of the working table plate, the shaking screen mechanism is arranged on the lower side of the roller screen mechanism, the shaking screen mechanism comprises a rotating seat, the rotating seat is fixedly connected to the lower surface of the working table plate, a connecting rod is rotationally connected to the interior of the rotating seat, and a rotating table is rotationally connected to the lower end of the connecting rod; the screening box is fixedly connected to one side of the rotary table, the shaking screen mechanism is used for shaking the roller screen mechanism, screening of the device is finer, the mixing probability of crushed materials with different particle sizes is reduced, the roller screen mechanism is used for screening the crushed materials, and the effects of reducing blocking and improving the screening quality are achieved in cooperation with the shaking screen mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of crushing and screening devices for iron concentrate production, specifically a crushing and screening device for iron concentrate production. Background Technology

[0002] Crushing and screening equipment for iron concentrate production is mainly used to crush raw ore to a suitable particle size and separate it into concentrate that meets the requirements. Its core equipment includes two main modules: a crusher and a screening machine. The crushing stage typically uses jaw crushers, cone crushers, or double-roll crushers to break large pieces of iron ore into coarse particles through compression and impact. The screening stage relies on vibrating screens, drum screens, or linear screens, using screens of different mesh sizes to classify the crushed material by particle size. In practical applications, traditional equipment often suffers from problems such as uneven material distribution leading to screen surface accumulation, easy clogging of screen holes by critical particles, and cumbersome screen replacement. For example, a single feed inlet design can cause material to accumulate locally in the screening area, reducing the effective screening area; sticky particles or damp mineral powder can easily clump together and clog screen holes, requiring frequent shutdowns for cleaning; multi-stage screening requires manual replacement of screens or adjustment of screen plate spacing, which is time-consuming and labor-intensive. To improve practicality, some design improvements include the use of spiral guide plates to disperse the feed, the addition of mechanical self-cleaning brushes to prevent screen clogging, and modular quick-release screens to reduce downtime. Furthermore, optimized sealing structures (such as rubber dust covers) reduce dust spillage, while intermittent quantitative feeding mechanisms prevent single-load overload from affecting screening accuracy.

[0003] In the crushing field, there are various crushing combinations, each with its own unique advantages and disadvantages. The patent document with publication number "CN215843405 U" points out that "it does not play a role in collecting the crushed iron concentrate, making it inconvenient to use." This patent document uses the reciprocating motion of a cylinder in conjunction with a vibration device to screen the crushed material. Although it can separate the material, the device has some shortcomings. The crushed stone is always at the same level, which can easily cause blockage. The device does not have multi-stage screening, which can easily lead to a decrease in material uniformity. Utility Model Content

[0004] The purpose of this invention is to provide a crushing and screening device for iron concentrate production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a crushing and screening device for iron concentrate production, comprising a support, a worktable plate fixedly connected to the upper end of the support, a driving device fixedly connected to the upper side of the worktable plate, a crushing device disposed on one side of the driving device, and a screening box disposed on the lower side of the worktable plate. A shaking screen mechanism and a rolling screen mechanism are disposed on the upper side of the worktable plate, and the shaking screen mechanism is disposed on the lower side of the rolling screen mechanism.

[0006] The shaking screen mechanism includes a rotating base, which is fixedly connected to the lower surface of the workbench. A connecting rod is rotatably connected inside the rotating base, and a turntable is rotatably connected to the lower end of the connecting rod. The screening box is fixedly connected to one side of the turntable, and a rotating frame is fixedly connected to the lower surface of the screening box. A hanging seat is fixedly connected to the lower surface of one side of the workbench, and a mounting box is fixedly connected to the lower end of the hanging seat. A shaking motor is fixedly connected inside the mounting box, and a crank is fixedly connected to the output end of the shaking motor. A rocker arm is rotatably connected to the inner wall of the crank, and a collar is fixedly connected to one end of the rocker arm. The collar is sleeved on the outer wall of the rotating frame.

[0007] Preferably, multiple connecting rods are provided, and the connecting rods are distributed on both sides of the screening box.

[0008] Preferably, a gap is provided between the screening box and the workbench.

[0009] Preferably, the rotating frame has an I-shaped cross-section.

[0010] Preferably, the rotary screen mechanism includes a guide bag, which is fixedly connected to the discharge port of the crushing device. A feed inlet is provided at the upper end of the screening box. A rotating shaft is fixedly connected inside one end of the screening box. Multiple discharge outlets are provided on the lower side of the screening box. A support is rotatably connected to the outer wall of the rotating shaft. A screen cylinder is fixedly connected to the outer wall of the support. Multiple screen frames are fixedly connected inside the screen cylinder. A feeding disc is fixedly connected to the inner wall of the screen cylinder. The screen cylinder is rotatably connected inside the screening box. A sleeve is fixedly connected to one side of the screening box. A rotating motor is fixedly connected inside the sleeve, and the rotating motor is rotatably connected inside the support.

[0011] Preferably, the guide bag is made of a flexible material and extends to the upper side of the rotating shaft inside the screening box.

[0012] Preferably, multiple supports are provided, and the supports are distributed at both ends of the screen cylinder.

[0013] Compared with the prior art, this utility model provides a crushing and screening device for iron concentrate production, which has the following beneficial effects:

[0014] 1. The shaking screen mechanism is used to shake the roller screen mechanism. This mechanism can make the broken materials inside the screen cylinder more dispersed, improve the screening efficiency and reduce the probability of clogging. At the same time, this mechanism, together with the roller screen mechanism, extends the time the material spends inside the screen cylinder, making the screening of the device more delicate and reducing the probability of mixing of broken materials of different particle sizes.

[0015] 2. The roller screen mechanism is used to screen crushed materials. This mechanism uses multi-stage roller screening to reduce clogging and disperse materials of different particle sizes. Combined with the shaking screen mechanism, it achieves the effect of reducing clogging and improving screening quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the transfer seat of this utility model;

[0021] Figure 5 This is a schematic diagram of the guide bag structure in this utility model.

[0022] In the diagram: 1. Support; 2. Workbench; 3. Drive unit; 4. Crushing device; 5. Shaking screen mechanism; 501. Rotary seat; 502. Connecting rod; 503. Turntable; 504. Rotating frame; 505. Hanging seat; 506. Mounting box; 507. Shaking motor; 508. Crank; 509. Rocker arm; 510. Collar; 6. Roller screen mechanism; 601. Guide bag; 602. Feed inlet; 603. Rotating shaft; 604. Multi-stage discharge outlet; 605. Support; 606. Screen cylinder; 607. Multi-stage screen frame; 608. Feeding tray; 609. Sleeve; 610. Rotating motor; 7. Screening box. Detailed Implementation

[0023] 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] This mechanism is used to assist in screening and solves the problem of insufficient screening accuracy in existing devices. Please refer to [link / reference needed]. Figure 1-5 This utility model provides a technical solution: a crushing and screening device for iron concentrate production, including a support 1, a worktable 2 fixedly connected to the upper end of the support 1, a driving device 3 fixedly connected to the upper side of the worktable 2, a crushing device 4 set on one side of the driving device 3, and a screening box 7 set on the lower side of the worktable 2. A shaking screen mechanism 5 and a rolling screen mechanism 6 are set on the upper side of the worktable 2, and the shaking screen mechanism 5 is set on the lower side of the rolling screen mechanism 6.

[0027] The shaking screen mechanism 5 includes a rotating base 501, which is fixedly connected to the lower surface of the workbench 2. A connecting rod 502 is rotatably connected inside the rotating base 501. A turntable 503 is rotatably connected to the lower end of the connecting rod 502. A screening box 7 is fixedly connected to one side of the turntable 503. A rotating frame 504 is fixedly connected to the lower surface of the screening box 7. A hanging seat 505 is fixedly connected to the lower surface of one side of the workbench 2. A mounting box 506 is fixedly connected to the lower end of the hanging seat 505. A shaking motor 507 is fixedly connected inside the mounting box 506. A crank 508 is fixedly connected to the output end of the shaking motor 507. A rocker arm 509 is rotatably connected to the inner wall of the crank 508. A collar 510 is fixedly connected to one end of the rocker arm 509. The collar 510 is sleeved on the outer wall of the rotating frame 504.

[0028] Furthermore, multiple connecting rods 502 are provided, and the connecting rods 502 are distributed on both sides of the screening box 7.

[0029] Furthermore, a gap is provided between the screening box 7 and the worktable 2.

[0030] Furthermore, the 504 rotating frame has an I-shaped cross-section.

[0031] Example 2:

[0032] This mechanism is used for multi-stage screening and solves the problem of easy clogging of screening devices in existing equipment. Please refer to [link / reference]. Figure 1-5Furthermore, in conjunction with Embodiment 1, the sieving mechanism 6 includes a guide bag 601, which is fixedly connected to the discharge port of the crushing device 4. The upper end of the screening box 7 has a feed inlet 602. A rotating shaft 603 is fixedly connected inside one end of the screening box 7. A multi-stage discharge port 604 is opened on the lower side of the screening box 7. A bracket 605 is rotatably connected to the outer wall of the rotating shaft 603. A screen cylinder 606 is fixedly connected to the outer wall of the bracket 605. A multi-stage screen frame 607 is fixedly connected inside the screen cylinder 606. A feeding plate 608 is fixedly connected to the inner wall of the screen cylinder 606. The screen cylinder 606 is rotatably connected inside the screening box 7. A sleeve 609 is fixedly connected to one side of the screening box 7. A rotating motor 610 is fixedly connected inside the sleeve 609. The rotating motor 610 is rotatably connected inside the bracket 605. An inclined structure is provided on one side of the screen box 7 to facilitate the entry of crushed material into the screen cylinder 606.

[0033] Furthermore, the guide bag 601 is made of a flexible material and extends to the upper side of the rotating shaft 603 inside the screening box 7.

[0034] Furthermore, multiple supports 605 are provided, and the supports 605 are distributed at both ends of the screen cylinder 606.

[0035] In actual operation, when this device is in use, during the crushing of minerals, the crushed material enters the screening box 7 through the guide bag 601. The user starts the shaking motor 507 and the rotating motor 610. When the rotating motor 610 outputs, it generates rotational force, and the screen cylinder 606 is driven to rotate by the output end of the motor. The crushed material is rolled and screened on the multi-stage screen frame 607. The feeding plate 608 can push the crushed material to move, which facilitates the screening of crushed material into different grades of particle size. At the same time, the output of the shaking motor 507 drives the curved plate to rotate, and the crank 508 drives the rocker arm 509 to swing, which makes the screening box 7 shake, which facilitates the improvement of screening accuracy and reduces congestion. Crushed material of different particle sizes is discharged through the multi-stage discharge port 604 for easy collection.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A crushing and screening device for iron concentrate production, comprising a support (1), a worktable (2) fixedly connected to the upper end of the support (1), a drive device (3) fixedly connected to the upper side of the worktable (2), a crushing device (4) disposed on one side of the drive device (3), and a screening box (7) disposed on the lower side of the worktable (2), characterized in that: The workbench (2) is provided with a shaking screen mechanism (5) and a rolling screen mechanism (6) on its upper side, and the shaking screen mechanism (5) is provided on the lower side of the rolling screen mechanism (6); The shaking screen mechanism (5) includes a rotating base (501), which is fixedly connected to the lower surface of the workbench (2). A connecting rod (502) is rotatably connected inside the rotating base (501). A turntable (503) is rotatably connected to the lower end of the connecting rod (502). The screening box (7) is fixedly connected to one side of the turntable (503). A rotating frame (504) is fixedly connected to the lower surface of the screening box (7). A rotating frame (504) is fixedly connected to the lower surface of one side of the workbench (2). A hanging base (505) is fixedly connected to a mounting box (506) on one side of its lower end. A rocking motor (507) is fixedly connected inside the mounting box (506). A crank (508) is fixedly connected to the output end of the rocking motor (507). A rocker arm (509) is rotatably connected to the inner wall of the crank arm (508). A collar (510) is fixedly connected to one end of the rocker arm (509). The collar (510) is sleeved on the outer wall of the rotating frame (504).

2. The crushing and screening device for iron concentrate production according to claim 1, characterized in that: Multiple connecting rods (502) are provided, and the connecting rods (502) are distributed on both sides of the screening box (7).

3. The crushing and screening device for iron concentrate production according to claim 1, characterized in that: A gap is provided between the screening box (7) and the workbench (2).

4. The crushing and screening device for iron concentrate production according to claim 1, characterized in that: The rotating frame (504) has an I-shaped cross-section.

5. The crushing and screening device for iron concentrate production according to claim 1, characterized in that: The rotary screen mechanism (6) includes a guide bag (601), which is fixedly connected to the discharge port of the crushing device (4). The upper end of the screening box (7) has a feed inlet (602). A rotating shaft (603) is fixedly connected inside one end of the screening box (7). Multiple discharge outlets (604) are opened on the lower side of the screening box (7). A bracket (605) is rotatably connected to the outer wall of the rotating shaft (603). A [missing information - likely a component or component] is fixedly connected to the outer wall of the bracket (605). A screen cylinder (606) is fixedly connected to a multi-stage screen frame (607) inside the screen cylinder (606). A feeding disc (608) is fixedly connected to the inner wall of the screen cylinder (606). The screen cylinder (606) is rotatably connected to the inside of a screening box (7). A sleeve (609) is fixedly connected to one side of the screening box (7). A rotating motor (610) is fixedly connected inside the sleeve (609). The rotating motor (610) is rotatably connected to the inside of a bracket (605).

6. The crushing and screening device for iron concentrate production according to claim 5, characterized in that: The guide bag (601) is made of flexible material and extends to the upper side of the rotating shaft (603) inside the screening box (7).

7. The crushing and screening device for iron concentrate production according to claim 5, characterized in that: Multiple supports (605) are provided, and the supports (605) are distributed at both ends of the screen cylinder (606).

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