CN101869981A - A microwave heating spray fluidized decarburization device - Google Patents

Abstract

The invention relates to a microwave-heated spouted fluidized decarbonization device. The device is provided with a circular fluidized bed body and a straight spouted fluidized pipe; a stirrer, a temperature sensor, a barometer and an outlet valve are arranged on the spouted fluidized pipe; the upper left part of the fluidized bed body is provided with a dust collector, and the peripheral side part is provided with an observation window and a microwave heater; the spouted fluidized pipe is made of a ceramic refractory material; the bottom left of the spouted fluidized pipe is communicated with blown fluidizing gas CO2+H2O, and the bottom right is communicated with N2+Ar inertia protective gas; fluidized powder in the spouted fluidized pipe is subjected to fluidized separation; and the fluidized bed is controlled by a complete program of an electric cabinet circuit microcomputer processor. The microwave-heated spouted fluidized decarbonization device has the advantages of advanced and reasonable design, compact structure, complete functions, safe, reliable and stable microwaving heating, convenient installation and use, good effect and high efficiency of decarbonization, desulfuration and dephosphorization, and the decarbonization rate of 70 to 90 percent, improves the efficiency by 90 percent compared with the prior art, and is an ideal spouted fluidized decarbonization device.

Description

A microwave heating spray fluidized decarburization device

technical field

The invention relates to a microwave heating spray fluidized decarburization device, which belongs to the technical field of decarburization, desulfurization and dephosphorization equipment in solid state of ferrous metals.

Background technique

Ferromanganese, ferrochrome, and iron powder in ferrous metals all contain harmful substances such as carbon, sulfur, and phosphorus in varying degrees. These substances have disadvantages in the industrial application of ferrous metals, which greatly affect ferrous metals and other products. Chemical physical properties and mechanical properties.

The removal of carbon, sulfur, phosphorus and other substances from ferrous metals has always been a subject of research in the field of metallurgical science and technology. Conventional methods include high-temperature heating decarburization, desulfurization, flue gas decarbonization Carbon, desulfurization, etc. Although these methods can also remove carbon, sulfur, phosphorus, etc. in ferrous metals, there are some technical deficiencies, such as resistance heating, for powdery materials, the heat and mass transfer efficiency is low, and energy waste Large, serious pollution, low safety factor; some decarbonization and desulfurization process is complex, long cycle, high cost; some decarbonization and desulfurization technology is simple, but the decarbonization and desulfurization rate is low, can not meet the technical requirements.

Contents of the invention

purpose of invention

The purpose of the present invention is to aim at the deficiencies in the background technology, and to design a new jet fluidization decarburization device, which adopts microwave heating, jet fluidization, carbon dioxide+water vapor bottom blowing, nitrogen+argon bottom blowing protection, and agitation , Dust suction, observation mechanism, microcomputer program control functions, make the spray fluidized decarburization device more advanced, to meet the needs of decarburization, desulfurization and dephosphorization of various ferrous metals in solid state.

Technical solutions

The main structure of the present invention consists of: fluidized bed body, opening and closing door, base, microwave heater, agitator, vacuum cleaner, air pressure gauge, temperature sensor, observation window, spray fluidized pipe, pipe cover, pipe seat, _CO2 gas bottle, steam generator, gas heater, nitrogen bottle, argon bottle, gas pipe, gas valve, gas flow meter, water pipe, water valve, electric control box, circuit board, liquid crystal display, indicator light, control switch, Composed of microwave controller, wiring board and wires;

The fluidized bed body is a circular body, the lower part is the bed seat, and the inside of the fluidized bed body is a fluidization chamber, and the middle position of the fluidization chamber is provided with a spray fluidization pipe. It is the pipe seat, and the inside of the spray fluidized tube is fluidized powder; the top of the sprayed fluidized tube is equipped with an agitator, which goes deep into the sprayed fluidized tube for stirring, and the top of the sprayed fluidized tube is also equipped with an air outlet valve, temperature Sensors, air pressure gauges; a vacuum cleaner is provided on the upper left part of the fluidized bed body; observation windows are provided on the left and right sides of the fluidized bed body; several microwave heaters are installed outside the fluidized bed body; Material pipe, discharge valve, the upper part of the discharge pipe is connected to the spray fluidization pipe, and the discharge valve is aligned with the lower material box; the left and right main gas pipes are arranged in the bed body, and the left and right branch gas pipes are connected to the spray fluidization pipe. At the bottom of the tube, there is also a wiring board in the bed body seat, which is connected with the electric control box, microwave controller, agitator, vacuum cleaner, temperature sensor, gas heater, water vapor generator, and microwave heater;

The left part of the fluidized bed is equipped with a steam generator, and the steam generator is equipped with an indicator light and a control switch. The steam generator is connected to the gas heater through a gas valve, a steam flow meter, and a gas pipe. It is connected with the left main gas pipe through the left main gas valve; the lower part of the steam generator is provided with a water inlet pipe and a water inlet valve, and is connected with an external water source;

The left part of the fluidized bed is also equipped with a _CO2 gas bottle, which is connected to the gas heater through the gas pipe, gas valve and _CO2 flowmeter. The gas heater passes through the left main gas valve, the left main gas pipe and the left branch inlet pipe. The bottom of the Unicom spray fluidized pipe;

The right part of the fluidized bed is equipped with a nitrogen cylinder, which is connected with the right main gas valve through a nitrogen valve, a nitrogen flow meter, and a gas pipe. The bottom of the spray fluidized pipe is connected;

The right part of the fluidized bed is also equipped with an argon cylinder, which is connected with the right main gas valve through the argon valve, argon flow meter and gas pipe. The bronchus communicates with the bottom of the jet fluidized tube;

The right part of the fluidized bed body is also equipped with an electric control box. The front of the electric control box is equipped with a liquid crystal display, an indicator light, a control switch, and a microwave controller. There is a circuit board inside the electric control box. It is connected with the wiring board in the bed seat of the fluidized bed and connected with each part.

The microwave heater has a microwave heating power of 10-100kw.

The spray fluidized pipe is a wave-transparent refractory pipe made of mullite ceramics or corundum ceramics.

The spray gas at the bottom of the spray fluidization tube is CO ₂ +H ₂ O(g) mixed gas on the left, and N ₂ +Ar mixed gas on the right.

The circuit board is composed of microcomputer control circuit IC1, signal indication circuit IC2, control switch circuit IC3, microwave heating control circuit IC4, liquid crystal display circuit IC5, oscillation circuit IC6, agitator control circuit IC7, vacuum cleaner control circuit IC8, water The heater control circuit IC9, the oscillation circuit IC10, the information communication circuit IC11, the information communication circuit IC12, and the reset circuit IC13 form an integral circuit, and the sub-circuits are connected by wires.

Beneficial effect

Compared with the background technology, the present invention has obvious advances. It is designed for the actual situation that ferrous metals are difficult to decarburize, desulfurize and dephosphorize. The upper left part of the bed is equipped with a vacuum cleaner, and the surrounding side is equipped with a microwave heater, observation window, opening and closing door, and the left bottom of the spraying fluidization pipe is connected with the spraying fluidization gas CO ₂ +H ₂ O(g) gas, N ₂ +Ar inert protective gas connected to the right bottom, the fluidized bed is controlled by the overall program of the microcomputer processor on the circuit board of the electric control box, the design of this device is advanced and reasonable, the structure is compact, and the microwave heating is safe, stable and reliable. It has complete functions, convenient installation and use, good decarbonization effect, high efficiency, and the decarburization rate can reach 70-90%, which can improve the efficiency by 90% compared with the existing technology. It is a very ideal jet fluidized decarbonization device.

Description of drawings

Figure 1 is the overall structure of the spray fluidized decarburization device

Figure 2 is a block diagram of the circuit board

Figure 3 is the circuit diagram of the circuit board

As shown in the figure, the list of reference signs is as follows:

1. Fluidized bed body, 2. Microwave heater, 3. Stirrer, 4. Vacuum cleaner, 5. Left observation window, 6. Right observation window, 7. Bed seat, 8. Tube cover, 9. Tube seat, 10. Spray fluidized pipe, 11. Steam generator, 12. Gas heater, 13. Water inlet pipe, 14. Water inlet valve, 15. _CO2 gas bottle, 16. Gas pipe, 17. _CO2 gas valve , 18, water gas valve, 19, left total gas valve, 20, right total gas valve, 21, nitrogen cylinder, 22, nitrogen valve, 23, argon gas cylinder, 24, argon gas valve, 25, fluidization chamber, 26 , Fluidizing powder, 27, left branch air intake pipe, 28, right branch air intake pipe, 29, wiring board, 30, electric control box, 31, liquid crystal display screen, 32, indicator light, 33, control switch, 34, microwave control Device, 35, left opening and closing door, 36, right opening and closing door, 37, left main gas pipe, 38, right main gas pipe, 39, temperature sensor, 40, barometer, 41, circuit board, 42, discharge pipe , 43, discharge valve, 44, material box, 45, observation window, 46, observation window, 47, wire, 48, water and gas pipe, 49, water and gas indicator light, 50, water and gas switch, 51, gas outlet valve, 52 . Water vapor flowmeter, 53. CO ₂ flowmeter, 54. Nitrogen flowmeter, 55. Argon flowmeter.

IC1, microcomputer control circuit, IC2, signal indication circuit, IC3, control switch circuit, IC4, microwave heating control circuit, IC5, liquid crystal display circuit, IC6, oscillation circuit, IC7, agitator control circuit, IC8, vacuum cleaner control circuit, IC9, water heater control circuit, IC10, oscillation circuit, IC11, information communication circuit, IC12, information communication circuit, 13, reset circuit.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figure 1, it is the overall structure diagram of the fluidized bed. The position and connection relationship of each part must be correct and the installation should be firm.

The fluidized bed body 1 is a circular body, the lower part of which is the bed seat 7, and the interior of the fluidized bed body 1 is a fluidization chamber 25, and the middle position of the fluidization chamber 25 is provided with a spray fluidization pipe 10, and the spray fluidization pipe 10. The upper part is the pipe cover 8, the lower part is the pipe seat 9, and the inside of the spray fluidized pipe 10 is the fluidized powder 26; the top of the sprayed fluidized pipe 10 is provided with an agitator 3, a temperature sensor 39, an air pressure gauge 40, and an air outlet valve 51. The agitator 3 goes deep into the spray fluidized pipe 10 for stirring; the upper left part of the fluidized bed body 1 is provided with a vacuum cleaner 4; Open and close doors 35, 36 are set; several microwave heaters 2 are arranged outside the fluidized bed body 1; a discharge pipe 42, a discharge valve 43, and a discharge pipe 42 are arranged in the bed seat 7 at the bottom of the fluidized bed body 1; 41 The upper part communicates with the spray fluidization pipe 10, and the discharge valve 43 is aligned with the lower material box 44; the left and right main gas pipes 37, 38 are arranged in the bed body seat 7, and the spray flow is connected through the left and right branch gas pipes 27, 28 Bottom of chemical pipe 10; bed body seat 7 is also provided with wiring board 27, wiring board 27 and electric control box 30, microwave controller 34, agitator 3, temperature sensor 39, vacuum cleaner 4, gas heater 12, steam generation Device 11, microwave heater 2 are connected;

The left part of the fluidized bed body 1 is provided with a steam generator 11, and the steam generator 11 is provided with an indicator light 49 and a control switch 50. The steam generator 11 passes through a gas valve 18, a steam flow meter 52, and a gas pipe 48 Connected with the gas heater 12, the gas heater 12 is connected with the left total gas pipe 37 through the total left gas valve 19; the lower part of the steam generator 11 is provided with a water inlet pipe 13 and a water inlet valve 14, and is connected with an external water source;

The left part of the fluidized bed body 1 is also provided with a _CO2 gas bottle 15, and is connected with the gas heater 12 through the gas valve 17, the gas pipe 16, the _CO2 flowmeter 53; the gas heater 12 passes through the left main gas valve 19, the left The total gas pipe 37 communicates with the left branch air intake pipe 27 at the bottom of the jet fluidized pipe 10;

The right part of the fluidized bed body 1 is provided with a nitrogen cylinder 21, which is connected with the right main gas valve 20 and the right main gas pipe 38 through the nitrogen valve 22, the nitrogen flow meter 54, and the gas pipe, and the right general gas pipe 38 goes deep into the bed seat 7 , and communicate with the bottom of the jet fluidized pipe 10 through the right branch gas pipe 28;

The right part of the fluidized bed body 1 is also provided with an argon cylinder 23, which is connected with the right main gas valve 20 through the argon valve 24, the argon flow meter 55, and the gas pipe, and the right general gas valve 20 goes deep into the bed through the right general gas pipe 38. In the body seat 7, communicate with the bottom of the jet fluidized tube 10 through the right bronchus;

The right part of the fluidized bed body 1 is also provided with an electric control box 30, the front of the electric control box 30 is provided with a liquid crystal display 31, an indicator light 32, a control switch 33, a microwave controller 34, and the inside of the electric control box 30 is provided with a circuit board 41 , the electric control box 30, the circuit board 41 are connected with the wiring board 27 in the bed base 7 by wires, and are connected with each part.

Figures 2 and 3 show the block diagram and circuit diagram of the circuit board of the electric control box. The control circuit is composed of 13 sub-circuits to form an overall control circuit and complete various functions. The sub-circuits are connected by wires.

Claims (5)

1. A microwave heating spray fluidized decarburization device, characterized in that: the main structure is composed of: fluidized bed body, opening and closing door, base, microwave heater, stirrer, vacuum cleaner, air pressure gauge, temperature sensor, observation window , spray fluidized tube, tube cap, tube seat, CO ₂ gas bottle, steam generator, gas heater, nitrogen bottle, argon bottle, gas tube, gas valve, gas flow meter, water pipe, water valve, electric Control box, circuit board, liquid crystal display, indicator light, control switch, microwave controller, wiring board, wire; The fluidized bed body is a circular body, the lower part is the bed seat, and the inside of the fluidized bed body is a fluidization chamber, and the middle position of the fluidization chamber is provided with a spray fluidization pipe. It is the pipe seat, and the inside of the spray fluidized tube is fluidized powder; the top of the sprayed fluidized tube is equipped with an agitator, which goes deep into the sprayed fluidized tube for stirring, and the top of the sprayed fluidized tube is also equipped with an air outlet valve, temperature Sensors, air pressure gauges; a vacuum cleaner is provided on the upper left part of the fluidized bed body; observation windows are provided on the left and right sides of the fluidized bed body; several microwave heaters are installed outside the fluidized bed body; Material pipe, discharge valve, the upper part of the discharge pipe is connected to the spray fluidization pipe, and the discharge valve is aligned with the lower material box; the left and right main gas pipes are arranged in the bed body, and the left and right branch gas pipes are connected to the spray fluidization pipe. At the bottom of the tube, there is also a wiring board in the bed body seat, which is connected with the electric control box, microwave controller, agitator, vacuum cleaner, temperature sensor, gas heater, water vapor generator, and microwave heater; The left part of the fluidized bed is equipped with a steam generator, and the steam generator is equipped with an indicator light and a control switch. The steam generator is connected to the gas heater through a gas valve, a steam flow meter, and a gas pipe. It is connected with the left main gas pipe through the left main gas valve; the lower part of the steam generator is provided with a water inlet pipe and a water inlet valve, and is connected with an external water source; The left part of the fluidized bed is also equipped with a _CO2 gas bottle, which is connected to the gas heater through the gas pipe, gas valve and _CO2 flowmeter. The gas heater passes through the left main gas valve, the left main gas pipe and the left branch inlet pipe. The bottom of the Unicom spray fluidized pipe; The right part of the fluidized bed is equipped with a nitrogen cylinder, which is connected with the right main gas valve through a nitrogen valve, a nitrogen flow meter, and a gas pipe. The bottom of the spray fluidized pipe is connected; The right part of the fluidized bed is also equipped with an argon cylinder, which is connected with the right main gas valve through the argon valve, argon flow meter and gas pipe. The bronchus communicates with the bottom of the jet fluidized tube; The right part of the fluidized bed body is also equipped with an electric control box. The front of the electric control box is equipped with a liquid crystal display, an indicator light, a control switch, and a microwave controller. There is a circuit board inside the electric control box. It is connected with the wiring board in the bed seat of the fluidized bed and connected with each part. 2. A microwave heating spout fluidized decarburization device according to claim 1, characterized in that the microwave heating power of the microwave heater is 10-100kw. 3. A microwave heating spray fluidization decarburization device according to claim 1, characterized in that: said spray fluidization tube is a wave-transparent refractory tube made of mullite ceramics or corundum ceramics . 4. A microwave heating spray fluidized decarburization device according to claim 1, characterized in that: the spray gas at the bottom of the spray fluidized tube is CO ₂ +H ₂ O (g ) mixed gas, and the right part is N ₂ +Ar mixed gas. 5. A microwave heating spray fluidized decarburization device according to claim 1, characterized in that: the circuit board is composed of a microcomputer control circuit (IC1), a signal indicating circuit (IC2), and a control switch circuit (IC3), microwave heating control circuit (IC4), liquid crystal display circuit (IC5), oscillation circuit (IC6), agitator control circuit (IC7), vacuum cleaner control circuit (IC8), water heater control circuit (IC9), oscillation The circuit (IC10), the information communication circuit (IC11), the information communication circuit (IC12), and the reset circuit (IC13) form an integral circuit, and the sub-circuits are connected by wires.

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