Temperature control device of anode roasting furnace

Abstract

The utility model belongs to the technical field of temperature control, and particularly relates to a temperature control device of an anode roasting furnace, which comprises a furnace body, a kiln car, a temperature measuring assembly, a gas heating assembly, a cooling assembly and an exhaust assembly, the furnace body comprises a furnace body shell, a heat preservation layer and a furnace door, the kiln car comprises a carriage and wheels, the temperature measuring assembly comprises a thermocouple, a fourth conduction wire and a temperature controller, the gas heating assembly comprises a gas storage tank, a gas pipeline, an electromagnetic valve, an electric spark device, an electric spark device switch and a gas valve, and the cooling assembly comprises a water tank, an electric valve, a water pipeline and a water nozzle. The exhaust assembly comprises a fan, a first ventilation pipe and a second ventilation pipe; the device can control the temperature to realize stepped change, preset roasting time and the like in addition to common heating and cooling, so that automatic control of the temperature in the anode roasting furnace is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature control, and in particular relates to a temperature control device for an anode baking furnace. Background Art

[0002] Roasting is a key process that greatly affects the physical and chemical properties of carbon products. It is to heat-treat the pressed carbon blocks under air-isolated conditions to convert the binder into coke. Since the asphalt in the green block is firmly wrapped in the transition layer between the carbon particles, when it is converted into coke at high temperature, it forms an interface carbon grid layer in the semi-finished product, which has the effect of bridging and reinforcement. The mechanical strength of the baked carbon anode is stable, and its thermal conductivity, electrical conductivity and high temperature resistance can be significantly improved. The anode baking furnace is commonly used in factories to produce anode carbon blocks. Its temperature detection and control system has the following problems: uneven temperature in the furnace body, poor temperature control effect, low degree of control automation, and inability to achieve automatic control of the temperature in the furnace body. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a temperature control device for an anode baking furnace, comprising a furnace body, a kiln car, a temperature measuring component, a gas heating component, a cooling component and an exhaust component. The furnace body comprises a furnace body shell, an insulation layer arranged on the inner side of the furnace body shell and a furnace door detachably connected to the furnace body shell by bolts; the kiln car comprises wheels and a carriage.

[0004] The temperature measuring component comprises a thermocouple arranged through the furnace body, a temperature controller arranged outside the furnace body and a fourth conducting wire connecting the thermocouple and the temperature controller.

[0005] The gas heating assembly includes a gas storage tank, a gas pipeline and a solenoid valve. One end of the gas pipeline is connected to the gas storage tank arranged outside the furnace body, and the other end leads to the inner side of the furnace body. The solenoid valve is arranged on the gas pipeline. An electric sparker is arranged at the gas outlet end of the gas pipeline. The electric sparker is electrically connected to the sparker switch arranged outside the furnace body. A gas valve is arranged at the end of the gas pipeline connected to the gas storage tank.

[0006] The gas heating assembly includes a gas distribution pipe, which is evenly distributed horizontally in a vertical plane 50 cm away from the front and rear of the kiln car. The right end of the gas distribution pipe is interconnected through a U-shaped pipe, and the left end of the gas distribution pipe is a blind end. The bottom center of the U-shaped pipe is connected to the outlet end of the gas pipeline through a connecting pipe. A nozzle is provided on the side of the gas distribution pipe close to the kiln car, and a support frame is provided at the bottom of the gas distribution pipe.

[0007] The cooling component includes a water tank, an electric valve, a water pipe and a water nozzle. One end of the water pipe is connected to the water tank arranged outside the furnace body, and the other end leads to the inner side of the furnace body. The electric valve is arranged on the pipe section of the water pipe located outside the furnace body, and the water nozzle is arranged at the outlet end of the water pipe.

[0008] The exhaust assembly includes a fan, a first ventilation duct and a second ventilation duct. One end of the first ventilation duct is connected to the air outlet of the fan outside the furnace body, and the other end is connected to the atmosphere. One end of the second ventilation duct is connected to the air inlet of the fan, and the other end is connected to the furnace body. A filter is provided in the second ventilation duct, and a start-stop switch is provided on the fan.

[0009] The temperature controller is electrically connected to the solenoid valve, the electric valve and the start-stop switch through the first conduction line, the second conduction line and the third conduction line respectively.

[0010] Furthermore, the furnace shell, insulation layer, kiln car, gas distribution pipe and water nozzle are all made of high temperature refractory materials.

[0011] Furthermore, the gas valve is a one-way valve, and the gas pipeline is provided with a pressure gauge and a gas flow meter to monitor the gas consumption.

[0012] Furthermore, the temperature controller includes a temperature display screen for displaying the temperature of the air in the furnace.

[0013] Furthermore, one end of the first ventilation pipe connected to the atmosphere is a trumpet-shaped pipe opening, which is convenient for discharging the exhaust gas in the furnace body to the outside.

[0014] The utility model also includes other devices or components that can enable the temperature control device of the anode baking furnace to be used normally, which are all conventional technical means in the art. In addition, the pipelines or conducting lines not limited in the utility model all adopt conventional technical means in the art.

[0015] The working principle of the utility model is that when the device is used, the kiln car is pushed into the furnace body through the furnace door, and then the furnace door is closed, and the combustion temperature in the furnace body is set on the temperature controller. The temperature controller sends an electrical signal to the solenoid valve on the gas pipeline, the solenoid valve opens, and the gas is passed into the furnace body and sprayed out through the gas distribution pipe. Under the action of the spark device, it is ignited and starts to burn. The solenoid valve can control the gas feed amount until the temperature in the furnace body rises to a preset temperature; after the roasting is completed, the preset temperature is lowered, and the temperature controller will send an electrical signal to the solenoid valve, the electric valve, and the start-stop switch. The solenoid valve is closed, and the electric valve and the start-stop switch are opened, and the temperature in the furnace body is lowered by spraying water into the furnace body and extracting hot air from the furnace body.

[0016] The beneficial effects of the utility model are that the device has a simple structure, is easy to operate, and has a wide range of applications. In addition to ordinary heating and cooling, it can also control the temperature to achieve step changes, preset baking time, etc., to achieve automatic temperature control in the anode baking furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the utility model gas distribution pipe DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0021] Example

[0022] like Figures 1-2 As shown, the utility model provides a temperature control device for an anode baking furnace, comprising a furnace body 1, a kiln car, a temperature measuring component, a gas heating component, a cooling component and an exhaust component. The furnace body 1 comprises a furnace body shell 2, a heat preservation layer 3 arranged on the inner side of the furnace body shell 2 and a furnace door 4 detachably connected to the furnace body shell 2 by bolts; the kiln car comprises wheels 5 and a carriage 6.

[0023] The temperature measuring component includes a thermocouple 7 arranged through the furnace body 1, a temperature controller 8 arranged outside the furnace body 1 and a fourth conducting wire 9 connecting the thermocouple 7 and the temperature controller 8; the gas heating component includes a gas storage tank 10, a gas pipeline 11 and a solenoid valve 12, one end of the gas pipeline 11 is connected to the gas storage tank 10 arranged outside the furnace body 1, and the other end is connected to the inner side of the furnace body 1, the solenoid valve 12 is arranged on the pipe section of the gas pipeline 11 located outside the furnace body 1, and an electric spark valve is arranged at the gas outlet end of the gas pipeline 11 The spark device 13 is electrically connected to the spark switch 14 arranged outside the furnace body 1. A gas valve 15 is arranged at one end of the gas pipeline 11 connected to the gas storage tank 10; the gas heating assembly includes a gas distribution pipe 28, and the gas distribution pipe 28 is evenly distributed in a vertical plane 50 cm away from the front and rear of the kiln car. The right end of the gas distribution pipe 28 is interconnected through a U-shaped pipe 29, and the left end of the gas distribution pipe 28 is a blind end. The bottom center of the U-shaped pipe 29 is connected to the outlet end of the gas pipeline 11 through a connecting pipe 30. A nozzle 31 is provided on the side of the gas distribution pipe 28 close to the kiln car, and a support frame 32 is provided at the bottom of the gas distribution pipe 28; the cooling component includes a water tank 16, an electric valve 17, a water pipe 18 and a water nozzle 19, one end of the water pipe 18 is connected to the water tank 16 arranged outside the furnace body 1, and the other end is connected to the inside of the furnace body 1, the electric valve 17 is arranged on the pipe section of the water pipe 18 located outside the furnace body 1, and the water nozzle 19 is arranged at the outlet end of the water pipe 18; the exhaust component includes a fan 20, a first ventilation pipe 2 1 and a second ventilation duct 22, one end of the first ventilation duct 21 is connected to the air outlet of the fan 20 outside the furnace body 1, and the other end is connected to the atmosphere, one end of the second ventilation duct 22 is connected to the air inlet of the fan 20, and the other end is passed into the furnace body 1, and a filter 23 is arranged in the second ventilation duct 22, and a start-stop switch 24 is arranged on the fan 20; the temperature controller 8 is electrically connected to the solenoid valve 12, the electric valve 17, and the start-stop switch 24 through a first conduction line 25, a second conduction line 26, and a third conduction line 27, respectively.

[0024] As a further measure of this embodiment, the furnace body shell 2, the insulation layer 3, the kiln car, the gas distribution pipe 28 and the water nozzle 19 are all made of high-temperature refractory materials; the gas valve 15 is a one-way valve, and a pressure gauge and a gas flow meter are provided on the gas pipeline to monitor the gas consumption; the temperature controller 8 includes a temperature display screen for displaying the temperature of the air in the furnace body 1; the end of the first ventilation pipe 21 connected to the atmosphere is a trumpet-shaped pipe mouth, which is convenient for discharging the exhaust gas in the furnace body 1 to the outside.

[0025] The working principle of the utility model is that when the device is used, the kiln car is pushed into the furnace body through the furnace door 4, and then the furnace door 4 is closed, and the combustion temperature in the furnace body 1 is set on the temperature controller 8. The temperature controller 8 sends an electrical signal to the solenoid valve 12 on the gas pipeline 11, and the solenoid valve 12 is opened. The gas is passed into the furnace body 1 and sprayed out through the gas distribution pipe 28. Under the action of the spark device 13, it is ignited and starts to burn. The solenoid valve 12 can control the gas feed amount until the temperature in the furnace body 1 rises to a preset temperature; after the roasting is completed, the preset temperature is lowered, and the temperature controller 8 will send an electrical signal to the solenoid valve 12, the electric valve 17, and the start-stop switch 24, the solenoid valve 12 is closed, and the electric valve 17 and the start-stop switch 24 are opened, and the temperature in the furnace body 1 is lowered by spraying water into the furnace body 1 and extracting hot air from the furnace body 1.

[0026] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A temperature control device for an anode baking furnace, comprising a furnace body, a kiln car, a temperature measuring component, a gas heating component, a cooling component and an exhaust component, wherein the furnace body comprises a furnace shell, a heat-insulating layer arranged inside the furnace shell and a furnace door detachably connected to the furnace shell by bolts; the kiln car comprises wheels and a carriage; and characterized in that: The temperature measuring assembly includes a thermocouple arranged through the furnace body, a temperature controller arranged outside the furnace body, and a fourth conducting wire connecting the thermocouple and the temperature controller; The gas heating assembly includes a gas storage tank, a gas pipeline and a solenoid valve. One end of the gas pipeline is connected to the gas storage tank arranged outside the furnace body, and the other end leads to the inner side of the furnace body. The solenoid valve is arranged on the gas pipeline. An electric sparker is arranged at the gas outlet end of the gas pipeline. The electric sparker is electrically connected to the sparker switch arranged outside the furnace body. A gas valve is arranged at one end of the gas pipeline connected to the gas storage tank. The gas heating assembly includes a gas distribution pipe, which is evenly distributed horizontally in a vertical plane 50 cm away from the front and rear of the kiln car. The right end of the gas distribution pipe is interconnected through a U-shaped pipe, and the left end of the gas distribution pipe is a blind end. The bottom center of the U-shaped pipe is connected to the outlet end of the gas pipeline through a connecting pipe. A nozzle is arranged on the side of the gas distribution pipe close to the kiln car, and a support frame is arranged at the bottom of the gas distribution pipe; The cooling component includes a water tank, an electric valve, a water pipeline and a water nozzle, one end of the water pipeline is connected to the water tank arranged outside the furnace body, and the other end leads to the inner side of the furnace body, the electric valve is arranged on the pipe section of the water pipeline located outside the furnace body, and the water nozzle is arranged at the outlet end of the water pipeline; The exhaust assembly includes a fan, a first ventilation pipe and a second ventilation pipe, one end of the first ventilation pipe is connected to the air outlet of the fan outside the furnace body, and the other end is connected to the atmosphere, one end of the second ventilation pipe is connected to the air inlet of the fan, and the other end is connected to the furnace body, and a filter is provided in the second ventilation pipe, and a start-stop switch is provided on the fan; The temperature controller is electrically connected to the solenoid valve, the electric valve, and the start-stop switch through a first conduction line, a second conduction line, and a third conduction line, respectively.

2. The temperature control device of an anode baking furnace according to claim 1, characterized in that: The furnace shell, insulation layer, kiln car, gas distribution pipe and water nozzle are all made of high-temperature refractory materials.

3. The temperature control device of an anode baking furnace according to claim 1, characterized in that: The gas valve is a one-way valve, and a pressure gauge and a gas flow meter are provided on the gas pipeline.

4. The temperature control device of an anode baking furnace according to claim 1, characterized in that: The temperature controller includes a temperature display screen.

5. The temperature control device of an anode baking furnace according to claim 1, characterized in that: One end of the first ventilation pipe communicating with the atmosphere is a trumpet-shaped pipe opening.

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