Phosphorite crushing and screening device

Abstract

The utility model discloses a phosphorite crushing and screening device which comprises a first-stage crushing and screening device, a second-stage crushing and screening device and a screw conveyor, the second-stage crushing and screening device is arranged above the first-stage crushing and screening device, and the screw conveyor is arranged on the right side of the second-stage crushing and screening device; the primary crushing and screening device further comprises a jaw crusher and a primary vibrating screen; the secondary crushing and screening device further comprises a crushing roller device and a secondary vibrating screen. The device has the functions that the jaw type crushing device is additionally arranged, multi-stage crushing and screening are realized, and the crushing effect on phosphorite is improved; the vibration disc with the crushing function is adopted, phosphorite is further crushed and screened, and the burden of the crushing roller is reduced; buffering connection is added between the devices, resonance of the devices is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore crushing and screening, in particular to a phosphate ore crushing and screening device. Background Art

[0002] Phosphate rock refers to the general term for economically usable phosphate minerals. It is an important chemical raw material. The mined phosphate rock must go through processes such as crushing, screening, grading, sorting, and drying to obtain usable phosphate rock products. The crushing and screening process is the process of processing the mined phosphate ore to meet the requirements of grading and sorting specifications.

[0003] In the prior art, a crushing and screening integrated machine is disclosed in a Chinese patent (CN219291506U), which includes a device box, wherein a vertical plate is fixedly connected to the top and bottom of the inner cavity of the device box near the left side, a first motor is fixedly connected to the left side of the inner cavity of the device box near the top, a rotating shaft is fixedly connected to the power output shaft of the first motor, a first bearing is fixedly connected to the vertical plate near the top, the right end of the rotating shaft passes through the inner cavity of the first bearing and is fixedly connected to an active bevel gear, and the screen plate vibrates through the mutual cooperation between the various components, thereby avoiding the situation where the screen plate is easily blocked by the ore when filtering the ore, thereby improving the screening efficiency of the ore, and at the same time making it easy for the device to screen and filter the crushed ore, so that the ore that does not meet the requirements is automatically sent to the feed box for re-grinding, without the need for manual operation, thereby ensuring the crushing effect of the ore.

[0004] This method has the following defects: 1. The crushing rate of the crushing roller is not high, resulting in a low crushing effect of the phosphate rock; 2. The crushing device has to process two specifications of materials at the same time, which has a large load, affecting the crushing effect and shortening the service life of the device; 3. The vibration mechanism is prone to resonate with the entire device, reducing the service life of the device.

[0005] To this end, this article provides a phosphate rock crushing and screening device. Utility Model Content

[0006] In order to solve the above technical problems, the utility model discloses a phosphate ore crushing and screening device, which adds a jaw crushing device and multi-stage crushing and screening to improve the crushing effect of the phosphate ore; adopts a vibrating plate with a crushing function to further crush and screen the phosphate ore, reducing the burden of the crushing roller; adds a buffer connection between the devices, reduces the resonance of the device, and extends the service life.

[0007] In order to achieve the above technical effects, the utility model provides a phosphate ore crushing and screening device, including a primary crushing and screening device, a secondary crushing and screening device, and a screw conveyor. The secondary crushing and screening device is arranged above the primary crushing and screening device, and the screw conveyor is arranged on the right of the secondary crushing and screening device; the primary crushing and screening device also includes a jaw crusher and a primary vibrating screen, and the primary vibrating screen is connected to the bottom of the jaw crusher through a pipeline; the secondary crushing and screening device also includes a crushing roller device and a secondary vibrating screen, and the secondary vibrating screen is connected to the bottom of the crushing roller device through a pipeline, the inlet of the screw conveyor is connected to the discharge port b of the secondary vibrating screen through a pipeline, and the outlet of the screw conveyor is connected to the feed port b of the secondary vibrating screen through a pipeline.

[0008] Preferably, a crushing cone is provided on the first-stage vibrating screen.

[0009] Preferably, a flexible connection is provided on the pipeline between the crushing and screening device and the conveying device.

[0010] Preferably, the size of the sieve opening on the secondary vibrating screen is smaller than the size of the sieve opening on the primary vibrating screen.

[0011] Preferably, the discharge port a of the first-stage vibrating screen is connected to the feed port a of the second-stage vibrating screen via a pipeline.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the device adopts a primary crushing and screening device and a secondary crushing and screening device to perform multi-stage crushing and screening on the phosphate ore, thereby improving the crushing effect of the phosphate ore; the primary vibrating screen has a crushing function, which can crush part of the phosphate ore and reduce the burden of the crushing roller device; the soft connection reduces the resonance between the devices and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 A partial enlarged view of a;

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0016] 1. Screw conveyor; 2. Jaw crusher; 3. Primary vibrating screen; 4. Crushing roller device; 5. Secondary vibrating screen; 6. Crushing cone; 7. Discharge port b; 8. Feed port b; 9. Flexible connection; 10. Discharge port a; 11. Feed port a. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0018] like Figure 1 to Figure 2 As shown, the prior art in this embodiment has the following problems: The inventors found that the prior art has the following defects: 1. The crushing rate of the crushing roller is not high, resulting in a low crushing effect of the phosphate rock; 2. The crushing device has to process two specifications of materials at the same time, which has a large load, affects the crushing effect, and shortens the service life of the device; 3. The vibration mechanism is easy to resonate with the entire device, reducing the service life of the device;

[0019] Therefore, the inventor provides a phosphate ore crushing and screening device, including a primary crushing and screening device, a secondary crushing and screening device, and a screw conveyor 1. The secondary crushing and screening device is arranged above the primary crushing and screening device, and the screw conveyor 1 is arranged on the right side of the secondary crushing and screening device; the primary crushing and screening device also includes a jaw crusher 2 and a primary vibrating screen 3, and the primary vibrating screen 3 is connected to the bottom of the jaw crusher 2 through a pipeline; the secondary crushing and screening device also includes a crushing roller device 4 and a secondary vibrating screen 5, and the inlet of the screw conveyor 1 is connected to the discharge port b7 of the secondary vibrating screen 5 through a pipeline, and the outlet of the screw conveyor 1 is connected to the feed port b8 of the secondary vibrating screen 5 through a pipeline.

[0020] By adopting the above scheme, coarse ore enters the primary crushing and screening device, and is crushed and screened into finer ore and fine ore. The finer ore will be simply crushed on the primary vibrating screen 3 during the screening process, and the larger ore will be vibrated to make the ore entering the secondary crushing and screening device more uniform, reducing the burden of the crushing roller device 4; the finer ore enters the secondary crushing and screening device for secondary crushing and screening, and the fine ore is directly screened in the secondary crushing and screening device. The secondary crushing and screening device crushes and screens qualified ore and sends it to the next process, and the unqualified ore is screened and sent to the screw conveyor 1. The screw conveyor 1 sends the unqualified ore back to the secondary crushing and screening device for crushing to qualified and then sent out. Multi-stage crushing and screening improves the crushing effect of phosphate ore; buffer connections are set between the devices to reduce the resonance of the devices and extend their service life.

[0021] Furthermore, a crushing cone 6 is provided on the first-stage vibrating screen 3;

[0022] Among them, the ore crushed by the jaw crusher 2 is vibrated and screened on the primary vibrating screen 3. During the vibration process, larger materials hit the crushing cone 6 and are divided into smaller materials, making the specifications of the ore entering the crushing roller device 4 more uniform and reducing the burden on the crushing roller.

[0023] Furthermore, a flexible connection 9 is provided on the pipeline between the crushing and screening device and the conveying device;

[0024] The flexible connection 9 can buffer the resonance of the device caused by the operation of the vibrating screen and extend the service life of the device.

[0025] Further, the size of the sieve opening on the secondary vibrating screen 5 is smaller than the size of the sieve opening on the primary vibrating screen 3;

[0026] Furthermore, the discharge port a10 of the primary vibrating screen 3 and the feed port a11 of the secondary vibrating screen 5 are connected via a pipeline;

[0027] Among them, the finer ore out of the first-level vibrating screen 3 enters the second-level vibrating screen 5 for secondary screening, and the coarser ore is screened out and sent to the crushing roller device 4 for secondary crushing by the screw conveyor 1 to ensure the quality of the ore finally output by the device.

[0028] In summary, the device adopts a primary crushing and screening device and a secondary crushing and screening device to perform multi-stage crushing and screening on the phosphate ore, thereby improving the crushing effect of the phosphate ore; the primary vibrating screen 3 has a crushing function, which can crush part of the phosphate ore and reduce the burden of the crushing roller device 4; the soft connection 9 reduces the resonance between the devices and prolongs the service life.

[0029] The working principle of the utility model is as follows: the coarse ore is fed into the jaw crusher, and after being crushed, it enters the primary vibrating screen 3. Under the action of vibration, the ore is screened into finer materials and enters the secondary vibrating screen 5 downward. The coarser materials enter the crushing roller device 4 along the primary vibrating screen 3. During the process, the larger materials on the primary vibrating screen 3 will be impacted into smaller pieces by the crushing cone 6 under the action of vibration, and the ore entering the crushing roller device 4 will be pre-crushed to reduce the burden of the crushing roller device 4. After the ore is processed by the primary crushing and screening device, the coarser ore is crushed in the crushing roller device 4, and after being crushed, it enters the secondary vibrating The screen 5 is used for screening, and the finer materials directly enter the secondary vibrating screen 5 for screening. The screen hole size on the secondary vibrating screen 5 is smaller than the screen hole on the primary vibrating screen 3, and finer mineral materials can be dried out. The coarser mineral materials are screened out and sent to the screw conveyor 1 from the discharge port b7. The screw conveyor 1 lifts the mineral materials and sends them to the crushing roller from the feed port b8 for crushing. Then, the mineral materials enter the secondary vibrating screen 5 and the qualified mineral materials are dried out. This reciprocating process improves the crushing effect of the phosphate ore. In addition, the pipelines connecting the various devices are provided with soft connections 9, which can reduce the resonance between the devices and extend the service life of the equipment.

[0030] At this point, the crushing process of the coarse ore is completed, and the processed ore is sent to the next process.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A phosphate ore crushing and screening device, comprising a primary crushing and screening device, a secondary crushing and screening device, and a screw conveyor (1), wherein the secondary crushing and screening device is arranged above the primary crushing and screening device, and the screw conveyor (1) is arranged on the right side of the secondary crushing and screening device, characterized in that: The primary crushing and screening device further comprises a jaw crusher (2) and a primary vibrating screen (3), wherein the primary vibrating screen (3) is connected to the lower part of the jaw crusher (2) via a pipeline; the secondary crushing and screening device further comprises a crushing roller device (4) and a secondary vibrating screen (5), wherein the secondary vibrating screen (5) is connected to the lower part of the crushing roller device (4) via a pipeline, an inlet of the screw conveyor (1) and a discharge port b (7) of the secondary vibrating screen (5) are connected via a pipeline, and an outlet of the screw conveyor (1) and a feed port b (8) of the secondary vibrating screen (5) are connected via a pipeline.

2. A crushing and screening device according to claim 1, characterized in that: The first-stage vibrating screen (3) is provided with a crushing cone (6).

3. A crushing and screening device according to claim 1, characterized in that: A flexible connection (9) is provided on the pipeline between the crushing and screening device and the conveying device.

4. A crushing and screening device according to claim 1, characterized in that: The size of the sieve opening on the secondary vibration screen (5) is smaller than the size of the sieve opening on the primary vibration screen (3).

5. A crushing and screening device according to claim 1, characterized in that: The discharge port a (10) of the first-stage vibrating screen (3) and the feed port a (11) of the second-stage vibrating screen (5) are connected via a pipeline.

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