Vibrating screening device for phosphorite beneficiation

Abstract

The utility model discloses a vibrating screening device for phosphorite beneficiation, which comprises a feed port, a vibrating screening mechanism, a discharge port of a crusher correspondingly arranged above the feed port, the feed port is arranged on the right side of the top of the vibrating screening mechanism, the vibrating screening mechanism further comprises a rack, a driving motor, a vibrating mechanism and a screening mechanism, the screening mechanism further comprises a screening box, a coarse-hole screen plate, a fine-hole screen plate and discharging ports, an inner cavity of the screening box is divided into three layers of screening spaces from top to bottom through the coarse-hole screen plate and the fine-hole screen plate, and the three discharging ports corresponding to the three layers of screening spaces are formed in the bottom of the screening box from right to left. Partition plates are arranged among the three discharge holes; the top ends of the partition plates are connected with the left ends of the coarse-hole sieve plate and the fine-hole sieve plate. The utility model provides a vibration screening device which can respectively screen out three kinds of mineral aggregates with different particle size ranges generated by coarse crushing and collect dust-shaped mineral aggregates.

Description

Technical Field

[0001] This utility model patent belongs to the technical field of phosphate ore beneficiation equipment, specifically relating to a vibrating screening device for phosphate ore beneficiation. Background Technology

[0002] Phosphate rock refers to all economically viable phosphate minerals and is an important chemical mineral raw material. It can be used to produce phosphate fertilizers and to manufacture yellow phosphorus, phosphoric acid, phosphides, and other phosphates for use in pharmaceuticals, food, matches, dyes, sugar refining, ceramics, and defense industries. Phosphate rock has been used industrially for over a century. The beneficiation process of phosphate ore requires crushing and screening of the raw ore. Crushing includes coarse crushing, medium crushing, and fine crushing, and screening is necessary after each stage of crushing.

[0003] Currently, jaw crushers are commonly used for primary crushing. During the crushing process, most phosphate ore is crushed to a size that meets the requirements for medium crushing. A smaller portion of the phosphate ore falls into three categories: those requiring further primary crushing, those already meeting the requirements for fine crushing, and those whose particles are too small and are agitated by the airflow, becoming environmentally polluting ash. For jaw crushers, the commonly used screening device in existing technology is a vibrating screen. However, this screen can only separate phosphate ore whose particle size meets the requirements for medium crushing, and phosphate ore with larger particles is screened out for further primary crushing. For phosphate ore whose particle size has reached the requirements for fine crushing, it can only be transported step by step in the crushing process for further crushing and screening. This method actually adds two transportation steps and one unnecessary crushing step (medium crushing) to the phosphate ore whose particle size has reached the requirements for fine crushing in the coarse crushing, reducing the beneficiation efficiency of phosphate ore and increasing the beneficiation cost. At the same time, for cases where the particles are too small and become mineral dust, the existing technology basically just removes them as dust, which wastes the phosphate ore raw material.

[0004] Therefore, this paper proposes a vibrating screen device for phosphate ore beneficiation. Utility Model Content

[0005] To solve the above problems, this utility model provides a vibrating screening device that can separate mineral materials of three different particle size ranges produced by coarse crushing and collect the dusty mineral materials.

[0006] In order to achieve the above technical effects, the utility model discloses a vibrating screen device for phosphorite dressing, including feed inlet, vibrating screen mechanism, the feed inlet top is provided with the discharge port of breaker correspondingly, the feed inlet is installed at the top right side of vibrating screen mechanism, vibrating screen mechanism still includes frame, drive motor, vibrating mechanism, screening mechanism, and the frame is fixedly installed with drive motor, and the screening mechanism is installed with the form of right high left low through the elastic component on the frame and is inclined, and the middle part of screening mechanism is installed with vibrating mechanism, and the front end of vibrating mechanism is connected with the drive end of drive motor with soft connection, the screening mechanism still includes screening box, coarse mesh screen plate, fine mesh screen plate, discharge port, and the inner chamber of screening box is divided into three layers of screening space from top to bottom through coarse mesh screen plate and fine mesh screen plate, and three discharge ports corresponding to three layers of screening space are arranged from right to left on the bottom of screening box, and the baffle is arranged between three discharge ports and is connected with the left end of coarse mesh screen plate and fine mesh screen plate on the top.

[0007] As preferred, the top of the screening box is provided with a dust collecting device.

[0008] As preferred, the dust collecting device further comprises a dust collecting cover, a hose, a dust suction pipe, a fan and a dust collecting bag, the dust collecting cover is installed on the top of the screening box, the top of the dust collecting cover is connected with the dust suction pipe through the hose, the fan is installed on the dust suction pipe, and the dust collecting bag is installed on the rear end pipe of the fan.

[0009] As preferred, the coarse mesh screen plate and the fine mesh screen plate are installed in parallel in the screening box of the screening mechanism.

[0010] As preferred, three discharge ports are correspondingly provided with coarse grain ore bin, medium grain ore bin and fine grain ore bin from left to right below.

[0011] The utility model discloses the beneficial effects are:

[0012] The device can screen out three different diameter particle range of ore respectively, and collect the dust-like ore, so that the phosphorite with diameter particle reaching the requirement of fine crushing in the coarse crushing process can be directly transported to the fine crushing step, the dressing efficiency of the phosphorite is improved, the dressing cost is reduced, and the dust-like ore loss and environmental pollution are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduces, and the person skilled in the art can also obtain other drawings according to these drawings without paying the creative labor.

[0014] Figure 1 It is the structural diagram of the utility model;

[0015] Figure 2The right view of the utility model;

[0016] Figure 3 The utility model Figure 2 The cross section schematic view of A;

[0017] Figure 4 The front view of the utility model;

[0018] Figure 5 The utility model Figure 4 The cross section schematic view of B;

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] 1, feed inlet;2, rack;3, drive motor;4, vibration mechanism;5, flexible connection;6, screening box;7, coarse hole sieve plate;8, fine hole sieve plate;9, discharge port;10, partition;11, dust collecting cover;12, hose;13, dust extraction pipe;14, elastic assembly. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. Embodiment 1

[0022] As Figures 1 to 5 shown, in the prior art in the present embodiment, the following problems exist: the inventor finds that the screening step after coarse breaking will increase the phosphorite in coarse breaking which has reached the requirement of fine breaking by 2 transportation steps and a crushing step (middle breaking) which is not needed originally, thereby reducing the beneficiation efficiency of the phosphorite and increasing the beneficiation cost; meanwhile, for the case that the particle size is too small to become ash, the prior art basically only removes it as dust, so that the phosphorite raw material is wasted;

[0023] Therefore, the inventor provides a vibrating screening device for phosphate ore beneficiation, including a feed inlet 1 and a vibrating screening mechanism. A crusher discharge outlet is correspondingly located above the feed inlet 1. The feed inlet 1 is installed on the top right side of the vibrating screening mechanism. The vibrating screening mechanism also includes a frame 2, a drive motor 3, a vibration mechanism 4, and a screening mechanism. The drive motor 3 is fixedly mounted on the frame 2. The screening mechanism is installed on the frame 2 at an angle with the right side higher than the left side via an elastic component 14. A vibrating mechanism is installed in the middle of the screening mechanism. The front end of the vibration mechanism 4 is softly connected to the drive end of the drive motor 3. The screening mechanism also includes a screening box 6, a coarse-hole screen plate 7, a fine-hole screen plate 8, and a discharge port 9. The screening box 6 divides its inner cavity into three screening spaces from top to bottom through the coarse-hole screen plate 7 and the fine-hole screen plate 8. The bottom of the screening box 6 is provided with three discharge ports 9 from right to left, corresponding to the three screening spaces. A partition plate 10 is provided between the three discharge ports 9, and the top of the partition plate 10 is connected to the left end of the coarse-hole screen plate 7 and the fine-hole screen plate 8.

[0024] As can be seen from the above, this device can separate the three different particle size ranges of ore produced by coarse crushing and collect the dusty ore. This allows phosphate ore whose particle size has reached the requirements of fine crushing during the coarse crushing process to be directly transported to the fine crushing step, thereby improving the beneficiation efficiency of phosphate ore, reducing beneficiation costs, and also preventing the loss of dusty ore and environmental pollution.

[0025] Furthermore, a dust collection device is installed on the top of the screening box 6; this structure can collect the ore that has been crushed into dust.

[0026] Furthermore, the dust collection device also includes a dust collection hood 11, a hose 12, a dust extraction pipe 13, a fan, and a dust collection bag. The dust collection hood 11 is installed on the top of the screening box 6. The top of the dust collection hood 11 is connected to the dust extraction pipe 13 through the hose 12. A fan is installed on the dust extraction pipe 13, and a dust collection bag is installed on the rear pipe of the fan. The hose 12 in this structure can alleviate the vibration of the dust collection hood 11.

[0027] Furthermore, the coarse-hole screen plate 7 and the fine-hole screen plate 8 are installed in parallel in the screening box 6 of the screening mechanism; this structure is parallel to the screening mechanism, so that the ore can easily roll into the discharge port 9 during screening. Example 2

[0028] like Figures 1 to 5 As shown in the above embodiment, the three discharge ports 9 provided in this embodiment are respectively provided with coarse-grained ore bins, medium-grained ore bins and fine-grained ore bins from left to right below them; this structure can facilitate the collection of ore of various particle sizes after screening.

[0029] The utility model discloses a working principle: this device can be in the rough breaking stage through three layer screening space and produce the screening of the mine material of the diameter particle of rough breaking, and the mine material of the diameter particle of more than the requirement of medium breaking, then through three discharge gates 9 corresponding with screening space, the mine material of three different diameter particle range is exported to respective bin, wherein, for the mine material that has been broken into dust, can be collected through the dust collecting device of screening box 6 top to reuse.

[0030] It will be apparent to those skilled in the art that the utility model is not limited to the details of the above-exemplified embodiments but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the utility model. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the above description, and it is therefore intended that all changes and modifications that come within the meaning and range of equivalency of the claims are resolvable thereunder. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although the present specification describes only one embodiment directed to one independent technical solution, the specification is described for the sake of clarity only, and each embodiment contains only one independent technical solution. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vibrating screening device for phosphate ore beneficiation, comprising a feed inlet (1), a vibrating screening mechanism, a discharge outlet of a crusher is correspondingly arranged above the feed inlet (1), and the feed inlet (1) is installed on the top right side of the vibrating screening mechanism, characterized in that: The vibrating screening mechanism further comprises a rack (2), a driving motor (3), a vibrating mechanism (4), a screening mechanism, the rack (2) is fixedly installed with the driving motor (3), the screening mechanism is installed on the rack (2) in a right-high and left-low form through an elastic assembly (14), the vibrating mechanism (4) is installed at the middle part of the screening mechanism, and the front end of the vibrating mechanism (4) is soft-connected (5) with the driving end of the driving motor (3).

2. A vibrating screening apparatus for beneficiation of phosphate ores as claimed in claim 1, wherein: The screening mechanism further comprises a screening box (6), a coarse-hole screen plate (7), a fine-hole screen plate (8) and a discharge port (9), the inner cavity of the screening box (6) is divided into three screening spaces from top to bottom through the coarse-hole screen plate (7) and the fine-hole screen plate (8), three discharge ports (9) corresponding to the three screening spaces are arranged on the bottom of the screening box (6) from right to left, a partition plate (10) is arranged between the three discharge ports (9), and the top end of the partition plate (10) is connected with the left end of the coarse-hole screen plate (7) and the fine-hole screen plate (8).

3. A vibrating screening apparatus for the beneficiation of phosphate ores according to claim 2, characterized in that: The top of the screening box (6) is provided with a dust collecting device.

4. A vibrating screening apparatus for beneficiation of phosphate ores as claimed in claim 1, wherein: The dust collecting device further comprises a dust collecting cover (11), a hose (12), a dust collecting pipe (13), a fan and a dust collecting bag, the dust collecting cover (11) is installed on the top of the screening box (6), the dust collecting cover (11) is connected with the dust collecting pipe (13) through the hose (12), the fan is installed on the dust collecting pipe (13), and the dust collecting bag is installed on the pipeline at the rear end of the fan.

5. A vibrating screening apparatus for beneficiation of phosphate ores as claimed in claim 1, wherein: The coarse-hole screen plate (7) and the fine-hole screen plate (8) are installed in parallel in the screening box (6) of the screening mechanism. The three discharge ports (9) are correspondingly provided with a coarse-grained mineral aggregate bin, a medium-grained mineral aggregate bin and a fine-grained mineral aggregate bin from left to right below.

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