Steelmaking smelting furnace with waste gas purification function

Abstract

The utility model relates to the technical field of steelmaking smelters, in particular to a steelmaking smelter with a waste gas purification function, which is characterized in that a waste gas treatment component is mounted at the upper part of a smelter main body, and a heat recovery component is mounted at a position outside the smelter main body corresponding to the waste gas treatment component; the waste gas treatment assembly comprises a fixing frame rotationally installed outside the smelting furnace body, a supporting frame is installed outside the fixing frame, a waste gas purification box is fixedly installed at the top of the supporting frame, a dust suction fan is fixedly installed at the external air inlet end of the waste gas purification box, and a ventilation pipe is fixedly installed at the air inlet end of the dust suction fan. A waste gas collecting cover is fixedly mounted at the outer end of the ventilation pipe and erected on the upper portion of the smelting furnace body. According to the steelmaking smelting furnace with the waste gas purification function, waste gas of the smelting furnace can be discharged after being treated, the IDE environmental protection property of waste gas discharge is improved, and better use prospects are brought.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-making furnaces, in particular to a steel-making furnace with a waste gas purification function. Background Art

[0002] The steelmaking process is essentially a refining process with oxidation reaction as the main means. The steelmaking process is to oxidize and separate impurities in molten iron through oxidation reaction, using oxygen as the main oxidant, and controlling the carbon, silicon, manganese, phosphorus, sulfur, etc. in it within the specified range; then add appropriate amount of alloy elements according to the requirements of steel performance to make it have high strength, high toughness or other special properties of steel;

[0003] For example, a Chinese patent discloses a steelmaking furnace with a protective function (authorization announcement number CN217953084U). The patented technology can dump the liquid in the steelmaking furnace to prevent harm to the staff when taking the material. At the same time, a stable driving component is arranged at the bottom, so that the dumped material can be taken out to avoid burns to the staff caused by high temperature;

[0004] However, the steelmaking furnace disclosed above still has some defects when in use: the device can only be simply dumped, and cannot process the exhaust gas of the steelmaking furnace. The exhaust gas of the steelmaking furnace is directly discharged, thereby causing environmental pollution and affecting the environmental friendliness during use. Therefore, those skilled in the art provide a steelmaking furnace with exhaust gas purification function to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a steelmaking furnace with an exhaust gas purification function to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A steelmaking furnace with an exhaust gas purification function comprises a furnace body, an exhaust gas treatment component is installed on the upper part of the furnace body, and a heat recovery component is installed on the outside of the furnace body at a position corresponding to the exhaust gas treatment component;

[0008] The exhaust gas treatment assembly includes a fixed frame rotatably mounted on the outside of the furnace body, a support frame is mounted on the outside of the fixed frame, an exhaust gas purification box is fixedly mounted on the top of the support frame, a dust suction fan is fixedly mounted on the external air inlet end of the exhaust gas purification box, a ventilation pipe is fixedly mounted on the air inlet end of the dust suction fan, an exhaust gas collection cover is fixedly mounted on the outer end of the ventilation pipe, and the exhaust gas collection cover is mounted on the upper part of the furnace body;

[0009] The heat recovery component includes a water storage tank installed at the bottom of the exhaust gas purification box, a water outlet pipe is installed at the water outlet end of the water storage tank, a meandering heat conducting pipe is installed at the water outlet end of the water outlet pipe, and the meandering heat conducting pipe is arranged on the inner side of the exhaust gas purification box, a water inlet pipe is installed at the water outlet end of the meandering heat conducting pipe, and the water outlet end of the water inlet pipe is connected to the water inlet end of the water storage tank.

[0010] As a further solution of the utility model: a liquid storage tank is fixedly installed on the outside of the support frame, and a water filling pipe is installed at the liquid outlet end of the liquid storage tank.

[0011] As a further solution of the utility model: a pressure pump is installed at the external middle section of the water filling pipe and the water outlet pipe, and a connecting water pipe is installed at the end of the water filling pipe.

[0012] As a further solution of the utility model: a spray pipe is installed at the liquid outlet end of the connecting water pipe, and the spray pipe is arranged inside the exhaust gas purification box, connecting partitions are installed inside the exhaust gas purification box at the positions corresponding to the meandering heat conduction pipe and the spray pipe, and a box cover is detachably installed on the top of the exhaust gas purification box.

[0013] As a further solution of the utility model: a filter seat is installed inside the exhaust gas purification box near the connection partition, and connection grooves are equidistantly arranged inside the filter seat.

[0014] As a further solution of the utility model: a cage frame is installed at the position of the filter seat corresponding to the connecting groove, and a filter bag is installed in the middle of the cage frame.

[0015] As a further solution of the utility model: a wind wheel is rotatably connected to the middle of the dust suction fan, an adjusting motor is installed on the outer wall of the exhaust gas purification box near the wind wheel, and a transmission belt is connected between the output shaft of the adjusting motor and the outer end of the wind wheel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When using a steelmaking furnace with exhaust gas purification function, the motor and the transmission belt are adjusted to drive the wind wheel to rotate, and the dust suction fan can absorb the exhaust gas, and the exhaust gas generated by the furnace body is absorbed through the exhaust gas collecting hood at the ventilation pipe. At the same time, the water in the water storage tank is poured into the circular heat conduction pipe through the water outlet pipe, and the heat of the flue gas is transferred to the circular heat conduction pipe. The heated water is poured into the water storage tank with the help of the water inlet pipe, so that the heat can be recovered, which is better than the traditional method.

[0018] The steelmaking furnace with waste gas purification function uses the waste gas after heat recovery to pass through the spray pipe, and the desulfurizer in the liquid storage tank is poured into the spray pipe through the water pipe and the pressure pump. The waste gas is desulfurized through the spray pipe, and then the filter bag at the filter seat is used to filter the waste gas particulate matter, thereby improving the effect of waste gas purification and the precision of waste gas treatment, which is better than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a steelmaking furnace with exhaust gas purification function;

[0020] Figure 2 It is a schematic diagram of the structure of a liquid storage tank in a steelmaking furnace with exhaust gas purification function;

[0021] Figure 3 It is a schematic diagram of the structure of an exhaust gas purification box in a steelmaking furnace with an exhaust gas purification function;

[0022] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0023] In the figure: 1. furnace body; 2. fixing frame; 3. supporting frame; 4. exhaust gas purification box; 5. dust suction fan; 6. ventilation pipe; 7. exhaust gas collecting hood; 8. wind wheel; 9. regulating motor; 10. driving belt; 11. water storage tank; 12. water inlet pipe; 13. water outlet pipe; 14. liquid storage tank; 15. water filling pipe; 16. booster pump; 17. box cover; 18. breathable partition; 19. round heat conduction pipe; 20. connecting water pipe; 21. spray pipe; 22. filter seat; 23. connecting groove; 24. cage frame; 25. filter bag. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4In the embodiment of the utility model, a steelmaking furnace with an exhaust gas purification function includes a furnace body 1, an exhaust gas treatment component is installed on the upper part of the furnace body 1, a heat recovery component is installed at the position of the exhaust gas treatment component on the outside of the furnace body 1, and the exhaust gas treatment component includes a fixed frame 2 rotatably installed on the outside of the furnace body 1, a support frame 3 is installed on the outside of the fixed frame 2, an exhaust gas purification box 4 is fixedly installed on the top of the support frame 3, a dust suction fan 5 is fixedly installed on the external air inlet end of the exhaust gas purification box 4, a ventilation pipe 6 is fixedly installed on the air inlet end of the dust suction fan 5, an exhaust gas collection cover 7 is fixedly installed on the outer end of the ventilation pipe 6, and the exhaust gas collection cover 7 is erected on the upper part of the furnace body 1;

[0026] The heat recovery component includes a water storage tank 11 installed at the bottom of the exhaust gas purification box 4, a water outlet pipe 13 is installed at the water outlet end of the water storage tank 11, a meandering heat conducting pipe 19 is installed at the water outlet end of the water outlet pipe 13, and the meandering heat conducting pipe 19 is arranged on the inner side of the exhaust gas purification box 4, a water inlet pipe 12 is installed at the water outlet end of the meandering heat conducting pipe 19, and the water outlet end of the water inlet pipe 12 is connected to the water inlet end of the water storage tank 11, a wind wheel 8 is rotatably connected to the middle of the dust suction fan 5, and an adjusting motor 9 is installed near the wind wheel 8 on the outer wall of the exhaust gas purification box 4, and the adjusting motor A transmission belt 10 is connected between the output shaft of 9 and the outer end of the wind wheel 8. By adjusting the motor 9 and the transmission belt 10 to drive the wind wheel 8 to rotate, the dust suction fan 5 can absorb the exhaust gas, and the exhaust gas generated by the furnace body 1 is absorbed by the exhaust gas collecting hood 7 at the ventilation pipe 6. At the same time, the water in the water storage tank 11 is poured into the circular heat conduction pipe 19 through the water outlet pipe 13, and the heat of the flue gas is transferred to the circular heat conduction pipe 19, and the heated water is poured into the water storage tank 11 in conjunction with the water inlet pipe 12, so that the heat can be recovered.

[0027] exist Figure 1-4Middle: A liquid storage tank 14 is fixedly installed on the outside of the support frame 3, a water supply pipe 15 is installed at the liquid outlet end of the liquid storage tank 14, a pressure pump 16 is installed on the external middle section of the water supply pipe 15 and the water outlet pipe 13, a connecting water pipe 20 is installed at the end of the water supply pipe 15, a spray pipe 21 is installed at the liquid outlet end of the connecting water pipe 20, and the spray pipe 21 is arranged inside the exhaust gas purification box 4, and a connecting partition 18 is installed at the position of the inner part of the exhaust gas purification box 4 corresponding to the round heat conduction pipe 19 and the spray pipe 21, a box cover 17 is detachably installed on the top of the exhaust gas purification box 4, and the interior of the exhaust gas purification box 4 is close to the connecting partition 18 A filter seat 22 is installed at the position, and connecting grooves 23 are equidistantly arranged inside the filter seat 22. A cage frame 24 is installed inside the filter seat 22 at the position corresponding to the connecting groove 23. A filter bag 25 is installed in the middle of the cage frame 24. The exhaust gas after heat recovery passes through the spray pipe 21, and the desulfurizer in the liquid storage tank 14 is poured into the spray pipe 21 through the water pipe 15 and the pressure pump 16. The exhaust gas is subjected to a desulfurization reaction through the spray pipe 21, and then the exhaust gas particulate matter is filtered with the filter bag 25 at the filter seat 22, thereby improving the exhaust gas purification effect and the precision of exhaust gas treatment.

[0028] The working principle of the utility model is: when in use, by adjusting the motor 9 and the transmission belt 10 to drive the wind wheel 8 to rotate, the dust suction fan 5 can absorb the exhaust gas, and the exhaust gas generated by the furnace body 1 is absorbed by the exhaust gas collecting hood 7 at the ventilation pipe 6. At the same time, the water in the water storage tank 11 is poured into the circular heat conduction pipe 19 through the water outlet pipe 13, and the heat of the flue gas is transferred to the circular heat conduction pipe 19, and the heated water is poured into the water storage tank 11 in conjunction with the water inlet pipe 12, so that the heat can be recovered. The exhaust gas after heat recovery passes through the spray pipe 21, and the desulfurizer in the liquid storage tank 14 is poured into the spray pipe 21 through the water adding pipe 15 and the pressure pump 16, and the exhaust gas is subjected to desulfurization reaction through the spray pipe 21, and then the exhaust gas particles are filtered in conjunction with the filter bag 25 at the filter seat 22, thereby improving the exhaust gas purification effect, improving the precision of exhaust gas treatment, and being convenient for users to use, which is more practical.

Claims

1. A steelmaking furnace with exhaust gas purification function, comprising a furnace body (1), characterized in that: An exhaust gas treatment component is installed on the upper part of the furnace body (1), and a heat recovery component is installed on the outside of the furnace body (1) at a position corresponding to the exhaust gas treatment component; The exhaust gas treatment assembly comprises a fixed frame (2) rotatably mounted on the outside of the furnace body (1); a support frame (3) is mounted on the outside of the fixed frame (2); an exhaust gas purification box (4) is fixedly mounted on the top of the support frame (3); a dust suction fan (5) is fixedly mounted on the external air inlet end of the exhaust gas purification box (4); a ventilation pipe (6) is fixedly mounted on the air inlet end of the dust suction fan (5); an exhaust gas collection cover (7) is fixedly mounted on the outer end of the ventilation pipe (6); and the exhaust gas collection cover (7) is mounted on the upper part of the furnace body (1); The heat recovery assembly comprises a water storage tank (11) installed at the bottom of the exhaust gas purification box (4); a water outlet pipe (13) is installed at the water outlet end of the water storage tank (11); a meandering heat conducting pipe (19) is installed at the water outlet end of the water outlet pipe (13); the meandering heat conducting pipe (19) is arranged on the inner side of the exhaust gas purification box (4); a water inlet pipe (12) is installed at the water outlet end of the meandering heat conducting pipe (19); and the water outlet end of the water inlet pipe (12) is connected to the water inlet end of the water storage tank (11).

2. The steelmaking furnace with exhaust gas purification function according to claim 1, characterized in that: A liquid storage tank (14) is fixedly mounted on the outside of the support frame (3), and a water supply pipe (15) is mounted on the liquid outlet end of the liquid storage tank (14).

3. The steelmaking furnace with exhaust gas purification function according to claim 2, characterized in that: A pressure pump (16) is installed at the outer middle section of the water supply pipe (15) and the water outlet pipe (13), and a connecting water pipe (20) is installed at the end of the water supply pipe (15).

4. The steelmaking furnace with exhaust gas purification function according to claim 3, characterized in that: A spray pipe (21) is installed at the liquid outlet end of the connecting water pipe (20), and the spray pipe (21) is arranged inside the exhaust gas purification box (4). Connecting partitions (18) are installed at positions corresponding to the meandering heat conducting pipe (19) and the spray pipe (21) inside the exhaust gas purification box (4), and a box cover (17) is detachably installed on the top of the exhaust gas purification box (4).

5. The steelmaking furnace with exhaust gas purification function according to claim 4, characterized in that: A filter seat (22) is installed inside the exhaust gas purification box (4) near the connection partition (18), and connection grooves (23) are arranged at equal intervals inside the filter seat (22).

6. The steelmaking furnace with exhaust gas purification function according to claim 5, characterized in that: A cage frame (24) is installed at a position inside the filter seat (22) corresponding to the connection groove (23), and a filter bag (25) is installed in the middle of the cage frame (24).

7. The steelmaking furnace with exhaust gas purification function according to claim 1, characterized in that: A wind wheel (8) is rotatably connected to the middle of the dust suction fan (5), an adjustment motor (9) is installed on the outer wall of the exhaust gas purification box (4) near the wind wheel (8), and a transmission belt (10) is connected between the output shaft of the adjustment motor (9) and the outer end of the wind wheel (8).

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