Ore discharge temperature control device for agglomeration process

Abstract

The utility model relates to the technical field of sinter cooling, in particular to an ore discharge temperature control device for an agglomeration process, which comprises a circular cooler, a support frame mounted on the lower portion of the circular cooler, a heavy chain plate type conveyor mounted on the support frame, a belt conveyor mounted on the outer side of the heavy chain plate type conveyor, and a fixing frame mounted on the lower portion of the circular cooler. The fixing frame is fixedly installed on the heavy chain plate type conveyor, and a first temperature control assembly is installed on the fixing frame. The infrared thermometer is installed above sintering materials and does not make contact with the material surface, data are transmitted to the PLC in real time in an online mode through the temperature transmitter, the PLC feeds back signals to conduct valve opening and closing actions on the water fetching pipe electromagnetic valve, full-automatic control is achieved, labor productivity is improved, the malignant situation that a belt and other devices are damaged by over-high-temperature materials is eradicated, and production efficiency is improved. And the situation that a follow-up chute (screening equipment) is burnt and blocked due to excessive water fetching can be avoided, and the device has systematicness and advancement and is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of sinter cooling technology, specifically to a device for controlling the discharge temperature of ore in the agglomeration process. Background Technology

[0002] Currently, in the iron and steel metallurgical industry, the cooling of finished products in the agglomeration process (metallurgical sinter and pellets) is mainly achieved using annular cooling blowers. These blowers cool the high-temperature red ore placed on the annular cooling machine trolley. The cooled finished ore is then transported to the next process via a heavy-duty chain conveyor belt. Traditional agglomeration cooling control technology cannot improve the cooling effect on high-temperature finished ore under abnormal conditions, which directly affects the lifespan of the finished product belt and the stability of the sintering process.

[0003] In existing technologies, there are two types of devices for controlling the temperature of the finished ore discharge during the cooling process of the novel agglomeration process. One type uses mechanical dampers at the inlet and outlet of the blower to adjust the blower's airflow by controlling the damper opening, thereby controlling the output temperature of the sintered ore discharge. The other type uses a frequency converter to output different speeds for the blower motor, adjusting the blower's airflow by controlling the motor speed. Although these control methods can be automatically controlled by temperature control devices, they can only adjust and control the airflow according to the designed airflow when the sintering process is stable. When the sintering condition is unstable or the designed airflow is insufficient to cool the sintered ore, these adjustment and control methods will be greatly reduced in effectiveness or fail. Utility Model Content

[0004] The purpose of this invention is to provide a temperature control device for ore discharge in the agglomeration process, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature control device for ore discharge in the agglomeration process, comprising an annular cooler, a support frame installed at the lower part of the annular cooler, a heavy-duty chain conveyor installed on the support frame, and a belt conveyor installed on the outer side of the heavy-duty chain conveyor, and further comprising:

[0006] A fixed frame is fixedly installed on a heavy-duty chain conveyor. A first temperature control component is installed on the fixed frame, a second temperature control component is installed on the belt conveyor, and a third temperature control component is installed on the annular cooler.

[0007] Preferably, the first temperature control component includes a first spray pipe and a first infrared thermometer fixedly connected to a fixed frame, and a first solenoid valve is installed on the first spray pipe.

[0008] Preferably, the second temperature control component includes a bracket fixedly connected to the belt conveyor, a second spray pipe and a second infrared thermometer fixedly connected to the bracket, and a second solenoid valve installed on the second spray pipe.

[0009] Preferably, the third temperature control component includes a mounting bracket fixedly connected to the annular cooler, a third spray pipe and a third infrared thermometer fixedly connected to the mounting bracket, and a third solenoid valve installed on the third spray pipe.

[0010] Preferably, a connecting frame is fixedly connected to the belt conveyor, a fourth spray pipe is fixedly connected to the connecting frame, and a fourth solenoid valve is installed on the fourth spray pipe.

[0011] Preferably, a mounting block is installed on one side of the annular cooler, and a temperature transmitter and a PLC controller are fixedly connected to the mounting block.

[0012] Preferably, the heavy-duty chain conveyor is located below the hopper of the annular cooler.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes an infrared thermometer installed above the sintering material without contacting the material surface. Data is transmitted in real-time to a PLC via a temperature transmitter. The PLC feedback signal controls the opening and closing of the water-pumping solenoid valve, achieving fully automatic control. This improves labor productivity, prevents damage to conveyor belts and other equipment caused by excessively high temperatures, and also prevents clogging of subsequent chutes (screening equipment) due to excessive water injection. Furthermore, it is systematic, advanced, safe, and reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is another perspective view of the annular cooler of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first temperature control component of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second temperature control component of this utility model;

[0019] Figure 5 for Figure 2 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Circular cooler; 2. Support frame; 3. Heavy-duty chain conveyor; 4. Belt conveyor; 5. Fixed frame; 6. First temperature control component; 601. First spray pipe; 602. First infrared thermometer; 603. First solenoid valve; 7. Second temperature control component; 701. Bracket; 702. Second spray pipe; 703. Second solenoid valve; 704. Second infrared thermometer; 8. Third temperature control component; 801. Mounting frame; 802. Third infrared thermometer; 803. Third spray pipe; 804. Third solenoid valve; 9. Connecting frame; 10. Fourth spray pipe; 11. Fourth solenoid valve; 12. Mounting block; 13. Temperature transmitter; 14. PLC controller. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Please see Figure 1-5 As shown, a temperature control device for ore discharge in a pelletizing process includes an annular cooler 1, a support frame 2 installed at the lower part of the annular cooler 1, a heavy-duty chain conveyor 3 installed on the support frame 2, and a belt conveyor 4 installed on the outside of the heavy-duty chain conveyor 3. The heavy-duty chain conveyor and the belt conveyor 4 are both existing technologies, and their specific working principles and structures are common knowledge to those skilled in the art and will not be described in detail in this application. The device also includes a fixing frame 5, which is fixedly installed on the heavy-duty chain conveyor 3. A first temperature control component 6 is installed on the fixing frame 5, a second temperature control component 7 is installed on the belt conveyor 4, and a third temperature control component 8 is installed on the annular cooler 1.

[0023] It should be noted that when the temperature control component of the annular cooler 1 or the heavy-duty chain conveyor 3 displays that the material temperature exceeds the upper limit of the specified material temperature for water spraying, the control signal will control the temperature control component on the annular cooler 1 or the heavy-duty chain conveyor 3 to spray water onto the sinter for cooling. When the temperature control component on the belt conveyor 4 displays that the temperature exceeds the upper limit of the material temperature for water spraying, the control signal will simultaneously open the temperature control component on the belt conveyor 4 and spray water onto the sinter on the belt and the surface of the belt for cooling.

[0024] The first temperature control component 6 includes a first spray pipe 601 and a first infrared thermometer 602 fixedly connected to the fixed frame 5. A first solenoid valve 603 is installed on the first spray pipe 601. When the first infrared thermometer 602 detects that the material temperature exceeds the specified upper limit of the material temperature for water spraying, the first solenoid valve 603 opens and sprays water onto the material through the first spray pipe 601 for cooling and temperature reduction.

[0025] The second temperature control component 7 includes a bracket 701 fixedly connected to the belt conveyor 4. A second spray pipe 702 and a second infrared thermometer 704 are fixedly connected to the bracket 701. A second solenoid valve 703 is installed on the second spray pipe 702. A connecting frame 9 is fixedly connected to the belt conveyor 4. A fourth spray pipe 10 is fixedly connected to the connecting frame 9. A fourth solenoid valve 11 is installed on the fourth spray pipe 10. The second infrared thermometer 704 detects the temperature of the material on the belt conveyor 4. The second solenoid valve 703 controls the second spray pipe 702 to open, and the fourth solenoid valve 11 controls the fourth spray pipe 10 to open, thereby spraying water to cool the material.

[0026] The third temperature control component 8 includes a mounting bracket 801 fixedly connected to the annular cooler 1. A third spray pipe 803 and a third infrared thermometer 802 are fixedly connected to the mounting bracket 801. A third solenoid valve 804 is installed on the third spray pipe 803. The third infrared thermometer 802 detects the temperature of the material in the annular cooler 1 and controls the third spray pipe 803 to cool the material through the third solenoid valve 804.

[0027] A mounting block 12 is installed on one side of the ring cooler 1. A temperature transmitter 13 and a PLC controller 14 are fixedly connected to the mounting block 12. The temperature transmitter 13 adopts an integrated design, integrating the sensor and signal conversion module into the same housing to form an independent device. It can directly output standard signals or digital signals. The PLC server calculates through its built-in program and outputs control signals to the solenoid valve.

[0028] Working principle: The PLC controller 14 calculates through its built-in program and outputs control signals to the solenoid valves of the spray pipes to control the opening or closing of the solenoid valves to spray water onto the high-temperature ore. When the infrared thermometer of the annular cooler 1 or the heavy-duty chain conveyor 3 shows that the material temperature exceeds the upper limit of the specified material temperature for water spraying, the control signal will open the solenoid valve of the water spraying pipe above the annular cooler 1 or the heavy-duty chain conveyor 3 to spray water onto the sintered ore for cooling. When the infrared thermometer on the belt conveyor shows that the temperature exceeds the upper limit of the material temperature for water spraying, the control signal will simultaneously open the solenoid valves of the spray pipes above and at the tail of the belt conveyor to spray water onto the sintered ore and the surface of the belt conveyor for cooling. When the temperature value of any infrared thermometer drops to the lower limit of the material temperature for stopping water spraying, the control signal can close the corresponding solenoid valve to stop the water spraying operation.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A temperature control device for ore discharge in a pelletizing process, comprising an annular cooler (1), a support frame (2) installed at the lower part of the annular cooler (1), a heavy-duty chain conveyor (3) installed on the support frame (2), and a belt conveyor (4) installed on the outer side of the heavy-duty chain conveyor (3), characterized in that, Also includes: A fixed frame (5) is fixedly installed on a heavy-duty chain conveyor (3). A first temperature control component (6) is installed on the fixed frame (5), a second temperature control component (7) is installed on the belt conveyor (4), and a third temperature control component (8) is installed on the annular cooler (1).

2. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: The first temperature control component (6) includes a first spray pipe (601) and a first infrared thermometer (602) fixedly connected to the fixing frame (5), and a first solenoid valve (603) is installed on the first spray pipe (601).

3. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: The second temperature control component (7) includes a bracket (701) fixedly connected to the belt conveyor (4), a second spray pipe (702) and a second infrared thermometer (704) fixedly connected to the bracket (701), and a second solenoid valve (703) installed on the second spray pipe (702).

4. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: The third temperature control component (8) includes a mounting bracket (801) fixedly connected to the annular cooler (1), a third spray pipe (803) and a third infrared thermometer (802) fixedly connected to the mounting bracket (801), and a third solenoid valve (804) installed on the third spray pipe (803).

5. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: A connecting frame (9) is fixedly connected to the belt conveyor (4), a fourth spray pipe (10) is fixedly connected to the connecting frame (9), and a fourth solenoid valve (11) is installed on the fourth spray pipe (10).

6. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: A mounting block (12) is installed on one side of the ring cooler (1), and a temperature transmitter (13) and a PLC controller (14) are fixedly connected on the mounting block (12).

7. The ore discharge temperature control device for the agglomeration process according to claim 1, characterized in that: The heavy-duty chain conveyor (3) is located below the hopper of the annular cooler (1).

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