Recovery processing device for slag discharged by clinker mill

Abstract

The utility model discloses a recovery processing device for slag discharged by a clinker mill, which relates to the technical field of spodumene milling and comprises a receiving hopper, a belt conveyor, a ball mill, a bucket elevator, a grader, a cyclone collector, a first dust collector and a receiving bin. A belt conveyor is arranged below a discharge port of the receiving hopper, and the tail end of the belt conveyor is located at a feed port of the ball mill; the lower end of the bucket elevator is located at a discharging port of the ball mill, the higher end of the bucket elevator is located at a feeding port of the classifier, a discharging port of the classifier is communicated with a feeding port of the cyclone collector, a discharging port of the cyclone collector is communicated with a feeding port of the receiving bin through the first dust collector, and a first induced draft fan is further arranged on the first dust collector. According to the utility model, the discharged slag is primarily processed, the granularity of the discharged slag is reduced, the subsequent recovery work is facilitated, the recovery rate of lithium is improved, the loss of lithium during recovery is reduced, the environmental protection problem of open-air stacking of the discharged slag is solved, the field space is saved, and the field environment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spodumene grinding, in particular to a recycling and processing device for clinker grinding slag. Background Art

[0002] The slag is the material whose particle size does not meet the standard after grinding after the clinker of spodumene is roasted at high temperature. At present, some factories have piled up a large amount of clinker grinding slag, which has reached more than 10,000 tons. There is no condition for stacking on site, which seriously affects normal production and urgently needs to be recycled to ensure normal production; the clinker grinding slag also contains about 1% lithium oxide. If it is not crushed and directly processed in the acidification roasting system, it will lead to low conversion efficiency, only about 78%. Not only can the lithium in it not be fully recycled, but also the total lithium content in the silicon-calcium slag will exceed the standard.

[0003] Therefore, how to provide a clinker grinding slag recovery and processing device with the function of grinding and crushing, which can perform primary processing on the clinker grinding slag and improve the lithium conversion rate and recovery rate during subsequent recycling and processing has become a technical problem that needs to be urgently solved by personnel in this field. Utility Model Content

[0004] The utility model aims to provide a recycling and processing device for slag material produced by grinding clinker, so as to solve the problem of low lithium conversion rate and recovery rate of slag material.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a recycling and processing device for clinker grinding spitting slag, comprising a receiving hopper, a belt conveyor, a ball mill, a bucket elevator, a classifier, a cyclone collector, a first dust collector and a receiving bin;

[0007] The belt conveyor is arranged below the discharge port of the receiving hopper, and the end of the belt conveyor is located at the inlet of the ball mill; the lower end of the bucket elevator is located at the discharge port of the ball mill, and the high end of the bucket elevator is located at the inlet of the classifier, and the discharge port of the classifier is connected with the inlet of the cyclone collector, and the discharge port of the cyclone collector is connected with the inlet of the receiving bin through the first dust collector, and the first dust collector is connected with the first induced draft fan for providing power.

[0008] Preferably, a rod valve is also provided at the discharge port of the receiving hopper.

[0009] Preferably, a second dust collector is provided between the end of the belt conveyor and the feed port of the ball mill, and the second dust collector is connected to a second induced draft fan for providing power.

[0010] Preferably, a load sensor is also provided on the belt conveyor.

[0011] Preferably, the discharge port of the ball mill is provided with an electric flow valve.

[0012] Preferably, an air charging chute is installed at the discharge port of the ball mill, the high end of the air charging chute is located below the discharge port of the ball mill, and the low end of the air charging chute is located above the low end of the bucket elevator.

[0013] Preferably, a discharge screw is provided inside the pipeline connecting the first dust collector and the material receiving bin, and the discharge screw is driven by a motor.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] The utility model discloses a recycling and processing device for clinker grinding spitting slag, comprising a receiving hopper, a rod valve, a belt conveyor, a second dust collector, a second induced draft fan, a ball mill, a bucket elevator, a classifier, a cyclone collector, a first dust collector, a first induced draft fan, a discharging screw and a receiving bin; a load sensor, an electric flow valve and an air charging chute are arranged on the ball mill.

[0016] 1) Equipped with multiple dust removal devices, which can reduce pollutant emissions during production and improve air quality;

[0017] 2) A ball mill and a classifier are provided to grind and classify the slag material, thereby improving the conversion rate of lithium in the slag material in the subsequent recovery process.

[0018] The utility model discloses a recycling and processing device for clinker grinding slag material, which performs primary processing on the slag material and reduces the particle size of the slag material, which is beneficial to subsequent recycling work and improves the recovery rate of lithium. It not only reduces the loss of lithium during recycling, but also solves the environmental protection problem of open-air stacking of slag material, saves on-site space and improves the on-site environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 The utility model is a schematic diagram of a device for recycling and processing clinker grinding slag.

[0021] Explanation of the reference numerals: 1. Receiving hopper; 2. Rod valve; 3. Belt conveyor; 4. Load sensor; 5. Second dust collector; 6. Second induced draft fan; 7. Ball mill; 8. Electric flow valve; 9. Inflating chute; 10. Bucket elevator; 11. Classifier; 12. Cyclone collector; 13. First dust collector; 14. First induced draft fan; 15. Discharging screw; 16. Receiving bin. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] like Figure 1 As shown, a recycling and processing device for clinker grinding slag includes a receiving hopper 1, a belt conveyor 3, a ball mill 7, a bucket elevator 10, a classifier 11, a cyclone collector 12, a first dust collector 13 and a receiving bin 16;

[0024] The belt conveyor 3 is arranged below the discharge port of the receiving hopper 1, and the end of the belt conveyor 3 is located at the inlet of the ball mill 7; the lower end of the bucket elevator 10 is located at the discharge port of the ball mill 7, and the high end of the bucket elevator 10 is located at the inlet of the classifier 11, and the discharge port of the classifier 11 is connected with the inlet of the cyclone collector 12, and the discharge port of the cyclone collector 12 is connected with the inlet of the receiving bin 16 through the first dust collector 13, and the first dust collector 13 is connected with the first induced draft fan 14 for power supply.

[0025] Specifically, a rod valve 2 is further provided at the discharge port of the receiving hopper 1 ; the rod valve 2 is used to control the discharge amount of the receiving hopper 1 .

[0026] Specifically, a second dust collector 5 is provided between the end of the belt conveyor 3 and the feed port of the ball mill 7, and the second dust collector 5 is connected to a second induced draft fan 6 for providing power; it is used to reduce the dust contained in the slag material entering the ball mill 7, and a plurality of dust removal devices are provided as a whole, which can reduce pollutant emissions and improve air quality.

[0027] Specifically, the belt conveyor 3 is also provided with a load sensor 4 ; the load sensor 4 is used to detect the weight of the slag material on the belt conveyor 3 , and is combined with the rod valve 2 for adjustment, so that the slag material is continuously and evenly added to the ball mill 7 .

[0028] Specifically, the discharge port of the ball mill 7 is provided with an electric flow valve 8 ; the flow rate of the discharge of the ball mill 7 is controlled and monitored by the electric flow valve 8 .

[0029] Specifically, an air chute 9 is installed at the discharge port of the ball mill 7, the high end of the air chute 9 is located below the discharge port of the ball mill 7, and the low end of the air chute 9 is located above the low end of the bucket elevator 10; the air chute 9 plays a guiding role, and sends the slag material ground by the ball mill 7 into the bucket elevator 10, which can avoid the slag material from spilling out during operation and ensure the fluidity of the slag material.

[0030] Specifically, a discharging screw 15 is provided inside the pipeline connecting the first dust collector 13 and the receiving bin 16 , and the discharging screw 15 is driven by a motor; the discharging speed is further controlled by the discharging screw 15 by adjusting the rotation speed of the motor.

[0031] In addition, it also includes an external PLC controller, and each electrical component is electrically connected to the PLC controller and is uniformly controlled by the PLC controller to achieve automated operation.

[0032] The use process of the utility model is as follows:

[0033] First, the slag material to be processed is put into the receiving hopper 1, and the slag material is put onto the belt conveyor 3 through the rod valve 2. After that, the dust is collected by the second dust collector 5. After the air purified by the second dust collector 5 is emptied through the second induced draft fan 6, the slag material is sent to the ball mill 7 for grinding. During this process, the load sensor 4 detects the weight of the slag material on the belt conveyor 3, and is adjusted in combination with the rod valve 2 so that the slag material is continuously and evenly added to the ball mill 7; after grinding, the discharge amount is controlled and monitored by the electric flow valve 8, and the ground slag material is sent to the classifier 11 through the bucket elevator 10, and the slag material is graded by particle size, and the fine particle powder that meets the requirements is sent to the cyclone collector 12, and the centrifugal force generated by the rotating airflow is used, and the first dust collector 13 and the first induced draft fan 14 are cooperated to separate the fine powder of the slag material from the dusty airflow, and the gas is further purified. The fine powder of the slag material is then sent to the receiving bin 16 through the discharging screw 15.

[0034] The utility model discloses a clinker grinding slag recovery and processing device, which reduces the particle size of the slag material and performs primary processing, which is beneficial to subsequent recovery work and increases the lithium recovery rate by more than 12%. It not only reduces lithium loss and improves the recovery rate, but also solves the environmental protection problem of open-air stacking of slag material, saves on-site space and improves the on-site environment.

[0035] 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.

[0036] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for recovering and treating clinker grinding slag, characterized in that: It comprises a receiving hopper (1), a belt conveyor (3), a ball mill (7), a bucket elevator (10), a classifier (11), a cyclone collector (12), a first dust collector (13) and a receiving bin (16); The belt conveyor (3) is arranged below the discharge port of the receiving hopper (1), and the end of the belt conveyor (3) is located at the inlet of the ball mill (7); the lower end of the bucket elevator (10) is located at the discharge port of the ball mill (7), and the upper end of the bucket elevator (10) is located at the inlet of the classifier (11); the discharge port of the classifier (11) is connected to the inlet of the cyclone collector (12), and the discharge port of the cyclone collector (12) is connected to the inlet of the receiving bin (16) through the first dust collector (13), and the first dust collector (13) is connected to a first induced draft fan (14) for providing power.

2. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: A rod valve (2) is also provided at the discharge port of the receiving hopper (1).

3. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: A second dust collector (5) is also provided between the end of the belt conveyor (3) and the feed port of the ball mill (7), and the second dust collector (5) is connected to a second induced draft fan (6) for providing power.

4. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: The belt conveyor (3) is also provided with a load sensor (4).

5. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: The discharge port of the ball mill (7) is provided with an electric flow valve (8).

6. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: An air charging chute (9) is installed at the discharge port of the ball mill (7), the upper end of the air charging chute (9) is located below the discharge port of the ball mill (7), and the lower end of the air charging chute (9) is located above the lower end of the bucket elevator (10).

7. The recycling and processing device for clinker grinding slag according to claim 1 is characterized in that: A discharge screw (15) is arranged inside the pipeline connecting the first dust collector (13) and the material receiving bin (16), and the discharge screw (15) is driven by a motor.

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