CN-224216608-U - Coke primary particle grade temperature reaction inspection device

Abstract

The utility model relates to the technical field of coking and metallurgy, in particular to a coke primary grade temperature reaction inspection device which comprises a furnace body, a certain number of silicon molybdenum rods, thermocouples, an exhaust hood, an exhaust pipe, a fixing frame, a corundum reactor, a lifting support, a variable frequency controller and an air path pipeline, wherein the silicon molybdenum rods are connected in series through silicon molybdenum rod connecting belts, a wedge-shaped rubber plug is arranged at the bottom of the corundum reactor, and a vent pipe is inserted in the middle of the wedge-shaped rubber plug.

Inventors

• SUN JIMIN
• ZHANG SHENGGEN
• XU XUEYONG
• WANG HEWEI
• WEI DAN
• TANG QINGLI
• XU PENG
• SHENG HONGTAO
• LIU DONG

Assignees

• 磐石建龙钢铁有限公司

Dates

Publication Date

20260508

Application Date

20250507

Claims (8)

1. 1. The coke primary grade temperature reaction inspection device is characterized by comprising a furnace body, a certain number of silicon molybdenum rods, thermocouples, exhaust hoods, exhaust pipes, fixing frames, corundum reactors, lifting brackets, variable frequency controllers and air path pipelines, wherein the furnace body is of a middle through structure, the bottom of the furnace body is provided with the fixing frames, the silicon molybdenum rods are axially inserted into the furnace body along the furnace mouth at a certain distance from the furnace mouth, the silicon molybdenum rods are connected in series through silicon molybdenum rod connecting belts, the thermocouples are inserted into the middle of the back of the furnace body, the exhaust hoods are connected with the exhaust pipes in a conducting mode and are arranged at the top of the furnace body, the corundum reactors are fixedly inserted into the center of a furnace chamber, wedge-shaped rubber plugs are arranged at the bottom of the corundum reactors, ventilation pipes are inserted into the middle of the wedge-shaped rubber plugs, two ends of each ventilation pipe are respectively communicated with the outside and the inside of the furnace body, the variable frequency controllers are respectively connected with the silicon molybdenum rods and the thermocouples in an electric mode, and the air path pipelines are connected with the bottom of the furnace body in a conducting mode.
2. 2. The coke primary grade temperature reaction checking device according to claim 1, wherein the variable frequency controller comprises an outer shell, wherein a screen display controller, an ammeter, a voltmeter, a start button, a stop button, a main switch and an indicator lamp are arranged on the outer shell, and a frequency converter, a silicon controlled rectifier and a transformer are further arranged inside the variable frequency controller.
3. 3. The coke primary temperature reaction verification device according to claim 1, wherein the gas path pipeline comprises a nitrogen pipeline, a carbon dioxide pipeline, a gas flowmeter and a tee joint, gas inlets of the nitrogen pipeline, the carbon dioxide pipeline and the gas flowmeter are respectively connected with the tee joint, and a gas outlet of the gas flowmeter is connected with a vent pipe.
4. 4. The coke primary grade temperature reaction inspection device of claim 1, wherein the inner wall of the furnace body is further provided with a ceramic fiber liner.
5. 5. The coke primary grade temperature reaction testing apparatus of claim 1, wherein the silicon molybdenum rod is of a U-shaped configuration.
6. 6. The device for testing the temperature reaction of the raw coke particles according to claim 4, wherein a large-pore refractory brick and a small-pore refractory brick are sequentially arranged on the upper part of the wedge-shaped rubber piston in the furnace body, and a vent hole refractory brick is further arranged on the top of the wedge-shaped rubber piston close to a furnace mouth.
7. 7. The apparatus according to claim 6, wherein the large pore refractory bricks, the small pore refractory bricks and the vent hole refractory bricks are high alumina bricks.
8. 8. The device for testing the primary coke grain temperature reaction according to claim 6, wherein the large-pore refractory brick has a hollow circular truncated cone structure, the small-pore refractory brick has a cylindrical structure, a certain number of ventilation holes penetrating the body of the small-pore refractory brick are formed along the axial direction of the small-pore refractory brick, the ventilation hole refractory brick has a cylindrical structure, and ventilation holes penetrating the body of the small-pore refractory brick are formed along the axial direction of the small-pore refractory brick.

Description

Coke primary particle grade temperature reaction inspection device Technical Field The utility model relates to the technical field of coking and metallurgy, in particular to a coke primary particle grade temperature reaction inspection device. Background At present, the conventional coke thermal reactivity and post-reaction strength test standard (GB/T4000-2017) in the coking and metallurgical industry is used for preparing a sample, common coke is prepared into spherical particles with the particle size of 23-25mm, 200g is reduced and introduced into carbon dioxide for 2 hours at the temperature of 1100 ℃, and the real reaction condition of the coke at different particle sizes in a blast furnace and the temperature of a conventional blast furnace (above 1300 ℃) cannot be completely simulated. According to the design thought, a grain index sample after the coke drum is inspected is adopted, the proportion of the sample is reduced by 2000 g+/-20 g in different grain intervals, and a high-temperature reaction furnace is used for supporting test, so that a simulation experiment corresponding to the actual furnace temperature of blast furnace production is achieved, and the quality difference of metallurgical coke with different thermal properties is evaluated. Different from the prior GB/T4000-2017 coke thermal reactivity and post-reaction strength inspection equipment and method, the prior method is inconsistent with the actual production proportion of the coke size fraction and temperature of the blast furnace, and cannot simulate the actual reaction condition of the coke in the blast furnace production process, and in order to overcome the difficult problem that the experiment corresponds inconsistent with the actual production guidance, a coke primary size fraction temperature reaction inspection device is provided for solving the problems. Disclosure of utility model The utility model is realized by the following technical scheme that the coke primary grade temperature reaction testing device comprises a furnace body, a certain number of silicon molybdenum rods, thermocouples, an exhaust hood, an exhaust pipe, a fixing frame, a corundum reactor, a lifting support, a variable frequency controller and an air path pipeline, wherein the furnace body is of a middle through structure, the bottom of the furnace body is provided with the fixing frame, the silicon molybdenum rods are axially inserted into the furnace body along the furnace mouth at a certain distance from the furnace mouth, the silicon molybdenum rods are connected in series through silicon molybdenum rod connecting belts, the thermocouples are inserted into the middle of the back of the furnace body, the exhaust hood is connected with the exhaust pipe in a conducting manner and is arranged at the top of the furnace body, the corundum reactor is fixedly inserted into the center of the furnace hearth, the corundum reactor is further provided with a wedge-shaped rubber plug, the lifting support is arranged at the bottom of the corundum reactor and the wedge-shaped rubber plug, two ends of the air pipe are respectively communicated with the outside and the inside of the furnace body, the variable frequency controller is respectively electrically connected with the silicon molybdenum rods and the thermocouples, and the air path pipeline is connected with the bottom of the furnace body in a conducting manner. Preferably, the variable frequency controller comprises an outer shell, wherein a screen display controller, an ammeter, a voltmeter, a start button, a stop button, a main switch and an indicator lamp are arranged on the outer shell, and a frequency converter, a silicon controlled rectifier and a transformer are further arranged in the variable frequency controller. Preferably, the gas circuit pipeline comprises a nitrogen pipeline, a carbon dioxide pipeline, a gas flowmeter and a tee joint, wherein the nitrogen pipeline, the carbon dioxide pipeline and the gas flowmeter are respectively connected with the tee joint, and the gas outlet of the gas flowmeter is connected with the vent pipe. Preferably, the inner wall of the furnace body is also provided with a ceramic fiber lining. Preferably, the silicon molybdenum rod is of a U-shaped structure. Preferably, inside the furnace body, the wedge-shaped rubber piston is further provided with a large-pore refractory brick and a small-pore refractory brick in sequence, and the top of the wedge-shaped rubber piston is further provided with a vent hole refractory brick close to the furnace mouth. Preferably, the large pore refractory bricks, the small pore refractory bricks and the vent pore refractory bricks are high alumina bricks. Preferably, the atmospheric hole refractory brick is hollow round platform structure, the little gas pocket refractory brick is the cylinder structure, and it runs through its body to be equipped with a certain amount of air vents along its axial, the bleeder vent refractory