Online detection device for oxygen partial pressure of pressurized oxygen immersion

Abstract

The utility model provides a pressurized oxygen immersion oxygen partial pressure on-line detection device which comprises an autoclave, a thermocouple is arranged on the autoclave, a plurality of partition plates are arranged in the autoclave, the autoclave is divided into a plurality of reaction compartments by the partition plates, an oxygen main pipe is arranged below the autoclave and connected with a plurality of oxygen branch pipes, and the oxygen branch pipes are communicated with the reaction compartments. The oxygen branch pipes penetrate into the corresponding reaction compartments from the bottom of the autoclave, the oxygen main pipe is provided with an oxygen pressure transmitter, the thermocouple is connected with a controller, and the controller is respectively connected with the oxygen pressure transmitter and the oxygen regulating valve. According to the utility model, the thermocouple is arranged at the corresponding position of the autoclave, the saturated vapor pressure in the autoclave is obtained by detecting the temperature of the vapor phase in the autoclave, and the saturated vapor pressure is compared with the oxygen pressure in the oxygen branch pipe to obtain the accurate oxygen partial pressure in the autoclave under the temperature condition; meanwhile, an existing operator can directly observe through the display screen, and the use mode is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure autoclave equipment and relates to an online detection device for oxygen partial pressure during pressurized oxygen immersion. Background Art

[0002] In the nickel-cobalt pressurized oxygen leaching process, the size of the oxygen partial pressure is crucial to the safe and stable operation of the autoclave. If the oxygen partial pressure is too low, it is easy to cause the oxygen pipe to be blocked by backflow of slurry. If the oxygen partial pressure is too high, it increases the risk of explosion of metal materials in the autoclave.

[0003] The traditional method of controlling oxygen partial pressure is to manually find the corresponding saturated vapor pressure based on the detected vapor phase temperature of the autoclave, and then calculate the oxygen partial pressure by observing the oxygen pressure passing through the autoclave. The vapor phase temperature detection of the autoclave varies slightly depending on the installation position of the thermocouple, which directly leads to a large deviation in the calculation of the oxygen partial pressure and has little guiding significance for the precise control of the oxygen partial pressure. Utility Model Content

[0004] The purpose of the utility model is to provide an online detection device for oxygen partial pressure in pressurized oxygen immersion in order to solve the problems existing in the prior art.

[0005] To this end, the present invention adopts the following technical solutions:

[0006] A pressurized oxygen immersion oxygen partial pressure online detection device includes a pressure kettle, a thermocouple is provided on the pressure kettle, a plurality of partitions are provided in the pressure kettle, the partitions divide the pressure kettle into a plurality of reaction compartments, an oxygen main pipe is provided below the pressure kettle, the oxygen main pipe is connected to a plurality of oxygen branch pipes corresponding one to one with the reaction compartments, the oxygen branch pipes penetrate into the corresponding reaction compartments from the bottom of the pressure kettle, an oxygen regulating valve is provided on the oxygen branch pipe, the oxygen main pipe is provided with an oxygen pressure transmitter, the thermocouple is connected to a controller, and the controller is connected to the oxygen pressure transmitter.

[0007] Furthermore, the thermocouple is located at a position corresponding to the maintenance of the intense reaction compartment in the middle of the autoclave.

[0008] Furthermore, the controller is connected to a display screen.

[0009] Furthermore, a stirring device is provided in the reaction compartment.

[0010] The beneficial effects of the present invention are as follows: a thermocouple is arranged at a corresponding position of the autoclave, and the saturated vapor pressure in the autoclave is obtained by detecting the temperature of the vapor phase in the autoclave, and compared with the oxygen pressure in the oxygen branch pipe to obtain the precise oxygen partial pressure in the autoclave under the temperature condition. At the same time, the existing operator can directly observe it through the display screen, and the use method is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is the control principle diagram of the utility model;

[0013] In the figure, 1-autoclave, 2-thermocouple, 3-partition, 4-reaction compartment, 5-oxygen main pipe, 6-oxygen branch pipe, 7-oxygen regulating valve, 8-oxygen pressure transmitter, 9-controller, 10-display screen, 11-stirring device, 111-stirring shaft, 112-motor, 113-stirring blade. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings:

[0015] like Figure 1 As shown, a pressurized oxygen immersion oxygen partial pressure online detection device includes a pressure vessel 1, and a plurality of partitions 3 are provided in the pressure vessel 1. The partitions 3 divide the pressure vessel 1 into a plurality of reaction compartments 4. In this embodiment, three partitions 3 are provided to divide the pressure vessel 1 into four reaction compartments 4. The upper parts of the four reaction compartments 4 are connected. A thermocouple 2 is provided on the pressure vessel 1, and the thermocouple 2 is arranged at the top of the pressure vessel 1. Specifically, in this embodiment, the thermocouple 2 is located in the reaction compartment 4 where the reaction is most intense in the pressure vessel 1, that is, the reaction compartment 4 in the middle of the pressure vessel. Being arranged here can make the detection result more accurate. The thermocouple 2 is used to detect the temperature of the vapor phase in the pressure vessel 1. By detecting the temperature of the vapor phase in the pressure vessel 1, the saturated vapor pressure in the pressure vessel 1 under the temperature environment can be determined. An oxygen main pipe 5 is provided at the bottom of the pressure vessel 1. The oxygen main pipe 5 is connected to a plurality of oxygen branch pipes 6 corresponding to the reaction compartments 4 one by one. The oxygen branch pipe 6 penetrates the corresponding In the reaction compartment 4, oxygen can be input into the reaction compartment 4 through the oxygen branch pipe 6. The oxygen branch pipe 6 is provided with an oxygen regulating valve 7, which can adjust the amount of oxygen input into the reaction compartment 4 by the oxygen branch pipe 6. The oxygen main pipe 5 is provided with an oxygen pressure transmitter 8, which can detect the oxygen pressure in the oxygen main pipe 5. Since the oxygen pressure in the oxygen main pipe 5 and the oxygen branch pipe 6 is consistent, the oxygen pressure of the oxygen branch pipe 6 can be measured by the oxygen pressure transmitter 8 on the oxygen main pipe 5. The thermocouple 2 is connected to a controller 9, which can use an existing conventional controller. The thermocouple 2 can transmit the detected temperature signal to the controller 9. The corresponding saturated vapor pressure value can be directly obtained based on relevant experience through calculation by the controller 9. The controller 9 is connected to the oxygen pressure transmitter 8. The controller 8 is also connected to a display screen 10. The detected saturated vapor pressure and the oxygen pressure in the oxygen main pipe 5 can be displayed on the display screen 10 for observation by the operator.

[0016] Each reaction compartment 4 is provided with a stirring device 11. Specifically, the stirring device 11 includes a stirring shaft 111. The stirring shaft 111 is located in the reaction compartment 4. The top end of the stirring shaft 111 is connected to a motor 112 for driving the stirring shaft 111 to rotate. The bottom end of the stirring shaft 111 is provided with a stirring blade 113. The stirring device 11 can be used to stir the slurry in the reaction compartment 4.

[0017] The usage of this utility model is as follows:

[0018] During the pressurized oxygen immersion of nickel and cobalt, the vapor phase temperature in the autoclave 1 is first detected by the thermocouple 2, and the temperature information is transmitted to the controller 9. The corresponding saturated vapor pressure value in the autoclave 1 is directly obtained by the controller 9. At the same time, the oxygen pressure transmitter 8 transmits the detected oxygen pressure value in the oxygen main pipe 5 to the controller 9. The controller 9 compares the corresponding saturated vapor pressure value in the autoclave 1 with the oxygen pressure value detected by the oxygen pressure transmitter 8, and then obtains the oxygen partial pressure in the autoclave 1 under the temperature condition. The oxygen partial pressure value is displayed on the display screen 10. The operator can determine whether the oxygen partial pressure value is within the set range. In this embodiment, the oxygen partial pressure value is 0.05~0.30MPa. The operator can then adjust the oxygen main pipe 5 according to the value to adjust the oxygen partial pressure value to within the set range.

Claims

1. A pressurized oxygen immersion oxygen partial pressure online detection device, characterized in that: The invention comprises a pressure vessel (1), wherein a thermocouple (2) is provided on the pressure vessel (1), a plurality of partitions (3) are provided in the pressure vessel (1), the partitions (3) divide the pressure vessel (1) into a plurality of reaction compartments (4), an oxygen main pipe (5) is provided below the pressure vessel (1), the oxygen main pipe (5) is connected to a plurality of oxygen branch pipes (6) corresponding one to one with the reaction compartments (4), the oxygen branch pipes (6) penetrate into the corresponding reaction compartments (4) from the bottom of the pressure vessel (1), an oxygen regulating valve (7) is provided on the oxygen branch pipe (6), the oxygen main pipe (5) is provided with an oxygen pressure transmitter (8), the thermocouple (2) is connected to a controller (9), and the controller (9) is connected to the oxygen pressure transmitter (8).

2. The pressurized oxygen immersion oxygen partial pressure online detection device according to claim 1, characterized in that: The thermocouple (2) is located at a corresponding maintenance position of the intense reaction compartment (4) in the middle of the autoclave (1).

3. The pressurized oxygen immersion oxygen partial pressure online detection device according to claim 1, characterized in that: The controller (9) is connected to a display screen (10).

4. The pressurized oxygen immersion oxygen partial pressure online detection device according to claim 1, characterized in that: A stirring device (11) is provided in the reaction compartment (4).

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