Ore reduction degree detection equipment
By utilizing the high-temperature tail gas generated by the ore reduction reaction in the ore reduction degree detection equipment for heat exchange and providing heat energy for the drying box, the problem of high power consumption in the ore reduction degree detection is solved and the cost is reduced.
Patent Information
- Application Number
- CN202422598846.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The high power consumption during the ore reduction degree detection process leads to high costs.
The combined structure of reduction furnace, tail gas pipe, heating box, upper chamber, lower chamber, drying box and heating pipe is adopted. The high temperature tail gas generated by the ore reduction reaction is used for heat exchange to provide heat energy for the drying box and reduce electricity consumption.
The power consumption of ore reduction degree detection is reduced, and the detection cost is reduced.
Smart Images
Figure CN223389742U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ore drying, in particular to ore reduction degree detection equipment. Background Art
[0002] The reduction performance of ore has a great influence on the technical and economic indicators of blast furnace smelting. Therefore, the detection of ore reduction degree is an important link in the blast furnace smelting process.
[0003] Currently, when testing the reduction degree of ore, the ore is first dried in an electric oven. The dried ore is then placed in a reduction furnace, which heats the furnace to a high temperature. Gas is then introduced to react with the ore, obtaining weight loss data and subsequently determining the ore's reduction degree. Because both the electric oven and the reduction furnace convert electrical energy into heat through internal heating elements, this process consumes a significant amount of electricity, making the testing process costly. Utility Model Content
[0004] In order to reduce the cost of ore reduction degree detection, the present application provides an ore reduction degree detection device.
[0005] The present application provides an ore reduction degree detection device that adopts the following technical solution:
[0006] A device for detecting the degree of ore reduction comprises a reduction furnace, wherein an exhaust pipe is connected to the reduction furnace, a heating box is provided on one side of the reduction furnace, an upper chamber and a lower chamber are provided in the heating box, the upper chamber is located above the lower chamber, the upper chamber is used to accommodate heating gas, and the lower chamber is used to accommodate heating liquid, a drying box is detachably provided in the upper chamber, a drying chamber is provided in the drying box, and the drying chamber is used to accommodate ore, a drying port is provided on the top of the drying box, the drying port and the drying chamber are connected to each other, a group of heating pipes are provided in the lower chamber, and the heating pipes are connected to the exhaust pipe.
[0007] By adopting the above technical solution, heating liquid is added to the lower chamber of the heating box. When the reduction degree of the ore is tested, the ore to be dried is placed into the drying chamber through the drying port, and the dried ore is placed in the reduction furnace. The reduction furnace is powered on to heat the dried ore, and then gas is introduced to cause the dried ore to undergo a reduction reaction. The high-temperature exhaust gas generated in the reduction furnace enters the heating pipe through the exhaust pipe, and the high-temperature exhaust gas flows in the heating pipe, exchanges heat with the heating liquid in the lower chamber, and forms heated gas after the heating liquid boils. The heated gas drifts into the upper chamber and exchanges heat with the drying box, so that the temperature of the drying box is increased, thereby heating and drying the ore in the drying chamber. The high-temperature exhaust gas generated in the ore reduction reaction is used to provide heat energy to the drying box, thereby replacing the situation where the drying box converts electrical energy into heat energy through the internal electric heating elements, reducing the power consumption of the ore reduction degree detection, and reducing the cost of the ore reduction degree detection.
[0008] Preferably, a diversion pipe is provided at one end of the heating tube, the diversion pipe passes through the side wall of the heating box, the end of the diversion pipe away from the heating tube is connected to the end of the exhaust pipe away from the furnace body, the end of the heating tube away from the air inlet pipe is connected to a junction pipe, the junction pipe passes through the side wall of the heating box, and the end of the junction pipe away from the heating tube is connected to an exhaust pipe.
[0009] By adopting the above technical solution, the high-temperature gas in the tail pipe enters the heating pipe through the diverter pipe, uniformly heating the heating medium, and then the gas in the heating pipe enters the exhaust pipe through the confluence pipe, and the exhaust pipe discharges the gas into the exhaust gas treatment device.
[0010] Preferably, a water inlet pipe and a water outlet pipe are provided through the heating box, a water inlet valve is provided on the water inlet pipe, a water outlet valve is provided on the water outlet pipe, both the water inlet pipe and the water outlet pipe are connected to the lower chamber, and a liquid level gauge is provided in the drying box.
[0011] By adopting the above technical solution, the liquid level height of the lower chamber is monitored by a liquid level gauge. When the liquid level height in the lower chamber is lower than the set minimum liquid level, the water inlet valve is opened and the heated liquid is replenished into the lower chamber through the water inlet pipe until the liquid level in the lower chamber reaches the set maximum liquid level. The water inlet valve is closed. When the heated liquid in the lower chamber is to be discharged, the water outlet valve is opened and the heated liquid in the lower chamber is discharged through the water outlet pipe.
[0012] Preferably, a heating port is provided on the top of the heating box, the drying box is inserted into the heating port, a carrying plate is fixedly provided on the side wall of the drying box, and the bottom of the carrying plate abuts against the top of the heating box.
[0013] By adopting the above technical solution, the drying box is set up on the heating box through the carrying plate, so that the drying box is suspended in the upper chamber through the heating port. When the inside of the drying box needs to be cleaned, the drying box is directly removed from the heating box, so that the drying box and the heating box are easy to disassemble and assemble.
[0014] Preferably, a snap ring groove is provided in the drying port, a butt ring groove is provided in the top wall of the snap ring groove, a number of snap hooks are provided in the snap ring groove and the butt ring groove, one end of the snap hook is located in the butt ring groove, a snap arm is provided on the other end of the snap hook, an elastic frame is provided on the top end of the snap arm, and the elastic frame is used to deform.
[0015] By adopting the above technical solution, the elastic frame is pressed to deform, so that the clamping arm drives the clamping hooks to move closer to each other, and the elastic frame is loosened and stretched to deform, so that the clamping arm drives the clamping hooks to move away from each other, thereby making it easier to hook the clamping hooks in the clamping ring groove and the abutting ring groove. When taking or placing the drying box, the clamping hooks are hung in the clamping ring groove and the abutting ring groove, and the drying box is moved by lifting the elastic frame, thereby achieving the effect of facilitating the removal of the high-temperature drying box.
[0016] Preferably, a sealing ring is provided on the inner wall of the heating port, and the sealing ring is in contact with the outer wall of the drying box. A discharge pipe is provided through the heating box, and a discharge valve is provided on the discharge pipe.
[0017] By adopting the above technical solution, when the drying box is hung in the upper chamber, the sealing ring seals the gap between the inner wall of the heating port and the outer wall of the drying box, so that the heated gas in the upper chamber is not easy to overflow from the gap between the inner wall of the heating port and the outer wall of the drying box. On the one hand, it is not easy for high-temperature gas to burn the skin. On the other hand, it is not easy for the heated gas to enter the drying chamber from the drying port, and the heated gas in the upper chamber overflows from the vent pipe.
[0018] Preferably, one end of the discharge pipe is connected to the upper chamber, the other end of the discharge pipe is connected to a condensation box, a condensation pipe is connected to the condensation box, and a condensation valve is provided on the condensation pipe.
[0019] By adopting the above technical solution, the heated gas in the discharge pipe condenses to form heated liquid and then enters the condensation box. When the condensation valve is opened, the heated liquid in the condensation box is discharged from the condensation pipe.
[0020] Preferably, a sealing ring is inserted into the drying port, the side wall of the sealing ring fits into the inner wall of the drying port, a sealing cover is fixed on the top of the sealing ring, the bottom of the sealing cover abuts against the top of the drying box, an air outlet pipe is passed through the sealing cover, and an air outlet one-way valve is provided on the air outlet pipe.
[0021] By adopting the above technical solution, during the ore drying process, the sealing cover is installed on the drying box, and the sealing ring is inserted into the drying port. At this time, the sealing tube and the sealing ring seal the drying port, making it difficult for external gas to enter the drying chamber and affect the ore drying. The water vapor generated in the drying chamber is discharged through the outlet pipe.
[0022] Preferably, one end of the air outlet pipe is connected to the drying chamber, the other end of the air outlet pipe is connected to a second condensation box, the second condensation box is connected to a second condensation pipe, and the second condensation valve is provided on the second condensation pipe.
[0023] By adopting the above technical solution, the water vapor in the outlet pipe forms condensed water and is discharged into the second condensation box. When the second condensation valve is opened, the condensed water in the second condensation box is discharged from the second condensation pipe.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. By setting up a reduction furnace, tail gas pipe, heating box, upper chamber, lower chamber, drying box, drying cavity, drying port and heating pipe, the high-temperature tail gas generated during the ore reduction reaction is used to provide heat energy to the drying box, thereby replacing the situation where the drying box converts electrical energy into thermal energy through the internal electric heating elements, reducing the power consumption of ore reduction degree detection and lowering the cost of ore reduction degree detection;
[0026] 2. By setting the heating port and the carrying plate, the drying box and the heating box can be easily disassembled and assembled;
[0027] 3. By arranging the clamping ring groove, the abutting ring groove, the clamping hook, the clamping arm and the elastic frame, the high-temperature drying box can be easily taken out. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a structural diagram of an ore reduction degree detection device in an embodiment of the present application.
[0029] Figure 2 It is a cross-sectional view showing the positional relationship between the upper chamber and the lower chamber in the embodiment of the present application.
[0030] Figure 3 It is a cross-sectional view showing the connection relationship between the drying box and the heating box in the embodiment of the present application.
[0031] Figure 4 It is a cross-sectional view showing the connection relationship between the drying box and the snap hook in the embodiment of the present application.
[0032] Figure 5 It is a schematic diagram showing the positional relationship between the first condensation box and the second condensation box in the embodiment of the present application.
[0033] Explanation of reference numerals: 1. reduction furnace; 11. tail gas pipe; 2. heating box; 21. upper chamber; 22. lower chamber; 23. heating port; 24. sealing ring; 3. drying box; 31. drying chamber; 32. drying port; 33. mounting plate; 4. heating pipe; 41. diverter pipe; 42. manifold; 43. exhaust pipe; 5. liquid level gauge; 51. water inlet pipe; 511. water inlet valve; 52. water outlet Pipe; 521, water outlet valve; 6, elastic frame; 61, snap-on arm; 62, snap-on hook; 63, snap-on ring groove; 64, abutting ring groove; 7, vent pipe; 71, vent valve; 73, condensation box 1; 74, condensation valve 1; 75, condensation pipe 1; 8, sealing cover; 81, sealing ring; 9, air outlet pipe; 91, air outlet non-return valve; 93, condensation box 2; 94, condensation valve 2; 95, condensation pipe 2. DETAILED DESCRIPTION
[0034] The following is combined with Figure 1-5 This application is described in further detail.
[0035] The present application embodiment discloses an ore reduction degree detection device. Figures 1 to 3 The reduction furnace 1 comprises a reduction furnace 1, with an exhaust pipe 11 connected to the top. A heating box 2 is installed on one side of the reduction furnace 1. The interior of the heating box 2 is divided into an upper chamber 21 and a lower chamber 22. The upper chamber 21 is located above the lower chamber 22. The upper chamber 21 is used to hold heating gas, while the lower chamber 22 is used to hold heating liquid. A drying box 3 is suspended within the upper chamber 21. The drying box 3 contains a drying chamber 31 for holding ore. A drying port 32 is provided at the top of the drying box 3, connecting the drying port 32 to the drying chamber 31. A set of heating pipes 4 is installed within the lower chamber 22. The heating pipes 4 are arranged to bend back and forth along the height of the upper chamber 21 and are connected to the exhaust pipe 11. When testing the reduction degree of the ore, the ore to be dried is placed into the drying chamber 31 through the drying port 32. The dried ore is then placed into the reduction furnace 1, and water is added to the lower chamber 22 of the heating box 2 as the heating liquid. The reduction furnace 1 is powered on to heat the dried ore, and then gas is introduced to cause the dried ore to undergo a reduction reaction. The high-temperature exhaust gas generated in the reduction furnace 1 enters the heating tube 4 through the exhaust pipe 11. The high-temperature exhaust gas flows in the heating tube 4, exchanging heat with the water in the lower chamber 22, causing the water to boil and form water vapor. The water vapor then drifts into the upper chamber 21 and exchanges heat with the drying box 3, raising the temperature of the drying box 3, thereby heating and drying the ore in the drying chamber 31. The high-temperature exhaust gas generated by the ore reduction reaction is used to provide thermal energy to the drying box 3, thereby replacing the drying box 3's internal electric heating elements that convert electrical energy into thermal energy. This reduces the power consumption of the ore reduction degree detection and lowers the cost of the ore reduction degree detection.
[0036] Reference Figures 1 to 3One end of the heating tube 4 is connected to a diverter pipe 41, and the other end is connected to a manifold 42. Both the diverter pipe 41 and the manifold 42 extend through the side wall of the heating box 2. The end of the diverter pipe 41, which is remote from the heating tube 4, is connected to the end of the tail gas pipe 11, which is remote from the furnace body. The end of the manifold 42, which is remote from the heating tube 4, is connected to an exhaust pipe 43, which is connected to the exhaust gas treatment device. The high-temperature gas in the tail gas pipe 11 enters the heating tube 4 through the diverter pipe 41, uniformly heating the heating medium. The gas in the heating tube 4 then enters the exhaust pipe 43 through the manifold 42. The exhaust pipe 43 discharges the gas into the exhaust gas treatment device.
[0037] Reference Figures 1 to 3 A water inlet pipe 51 and a water outlet pipe 52 are provided through the heating box 2. A water inlet valve 511 is installed on the water inlet pipe 51, and a water outlet valve 521 is installed on the water outlet pipe 52. Both the water inlet pipe 51 and the water outlet pipe 52 are connected to the lower chamber 22. A liquid level gauge 5 is provided in the drying box 3 to monitor the liquid level in the lower chamber 22. When the liquid level in the lower chamber 22 is lower than the set minimum liquid level, the water inlet valve 511 is opened, and the heated liquid is replenished into the lower chamber 22 through the water inlet pipe 51. When the liquid level in the lower chamber 22 reaches the set maximum liquid level, the water inlet valve 511 is closed. When the heated liquid in the lower chamber 22 needs to be discharged, the water outlet valve 521 is opened, and the heated liquid in the lower chamber 22 is discharged through the water outlet pipe 52.
[0038] In order to facilitate the disassembly and assembly of the heating box 2 and the drying box 3, refer to Figures 2 to 4 A heating port 23 is provided at the top of the heating box 2, and the drying box 3 is inserted into the heating port 23. A carrying plate 33 is installed on the side wall of the drying box 3, and the bottom of the carrying plate 33 abuts against the top of the heating box 2. A snap ring groove 63 is provided in the drying port 32, and an abutting ring groove 64 is provided on the top wall of the snap ring groove 63. A plurality of snap hooks 62 are provided in the snap ring groove 63 and the abutting ring groove 64, and the snap hooks 62 are U-shaped. One end of the snap hook 62 is located in the abutting ring groove 64, and a snap arm 61 is installed on the other end of the snap hook 62, and the snap arm 61 is inserted between the drying ports 32. An elastic frame 6 is installed on the top of the snap arm 61, and the elastic frame 6 is made of bendable steel wire. The drying box 3 is mounted on the heating box 2 through the carrying plate 33, so that the drying box 3 is suspended in the upper chamber 21 through the heating port 23. By bending the elastic frame 6, the clamping arms 61 drive the clamping hooks 62 toward or away from each other, making it easier to hook the clamping hooks 62 into the clamping grooves 63 and the abutting grooves 64. When the interior of the drying box 3 needs to be cleaned, the clamping hooks 62 are hooked into the clamping grooves 63 and the abutting grooves 64, and the drying box 3 is moved by lifting the elastic frame 6. The drying box 3 can be directly removed from the heating box 2, making it easier to remove the high-temperature drying box 3.
[0039] In order to prevent the heated gas from entering the drying chamber 31, Figures 2 to 5A sealing ring 24 is installed on the inner wall of the heating port 23. The sealing ring 24 is made of rubber. When the drying box 3 is suspended in the upper chamber 21, the sealing ring 24 fits against the outer wall of the drying box 3. A vent pipe 7 is provided through the top of the heating box 2, and a vent valve 71 is installed on the vent pipe 7. One end of the vent pipe 7 is connected to the upper chamber 21, and the other end of the vent pipe 7 is connected to a condensation box 73. The condensation box 73 is installed at the bottom of the heating box 2. A condensation pipe 75 is provided near the bottom of the condensation box 73, and a condensation valve 74 is installed on the condensation pipe 75. When the drying box 3 is suspended in the upper chamber 21, the sealing ring 24 seals the gap between the inner wall of the heating port 23 and the outer wall of the drying box 3. This prevents heated gas in the upper chamber 21 from escaping through the gap between the inner wall of the heating port 23 and the outer wall of the drying box 3. This not only prevents the high-temperature gas from burning the skin, but also prevents heated gas from entering the drying chamber 31 through the drying port 32. The heated gas in the upper chamber 21 overflows from the vent pipe 7, condenses into heated liquid, and then enters the condensation box 73. When the condensation valve 74 is opened, the heated liquid in the condensation box 73 is discharged from the condensation pipe 75.
[0040] In order to prevent the heated gas from entering the drying chamber 31, Figures 2 to 5 A sealing ring 81 is inserted into the drying port 32, and the side wall of the sealing ring 81 fits against the inner wall of the drying port 32. A sealing cover 8 is installed on the top of the sealing ring 81, and the bottom of the sealing cover 8 abuts against the top of the drying box 3. An air outlet pipe 9 is passed through the sealing cover 8, and the air outlet pipe 9 is a bendable hose. An air outlet check valve 91 is installed on the air outlet pipe 9. One end of the air outlet pipe 9 is interconnected with the drying chamber 31, and the other end of the air outlet pipe 9 is connected to a condensation box 2 93, which is installed at the bottom of the heating box 2. A condensation pipe 2 95 is connected to the condensation box 2 near the bottom, and a condensation valve 2 94 is installed on the condensation pipe 2 95. During the ore drying process, the sealing cover 8 is placed on the drying box 3, and the sealing ring 81 is inserted into the drying port 32. At this time, the sealing pipe and the sealing ring 81 seal the drying port 32, making it difficult for external gas to enter the drying chamber 31 and affect the ore drying. The water vapor generated in the drying chamber 31 is discharged through the outlet pipe 9. The water vapor in the outlet pipe 9 forms condensed water and is discharged into the condensation box 93. When the condensation valve 94 is opened, the condensed water in the condensation box 93 is discharged through the condensation pipe 95.
[0041] The implementation principle of an ore reduction degree detection device according to an embodiment of the present application is as follows: when the reduction degree of the ore is detected, the ore to be dried is placed into the drying chamber 31 through the drying port 32, the dried ore is placed into the reduction furnace 1, and water is added as a heating liquid into the lower chamber 22 in the heating box 2. The reduction furnace 1 is powered on to heat the dried ore, and then gas is introduced to cause the dried ore to undergo a reduction reaction, and the high-temperature exhaust gas generated in the reduction furnace 1 enters the heating tube 4 through the exhaust pipe 11. The high-temperature exhaust gas flows in the heating tube 4, exchanges heat with the water in the lower chamber 22, causing the water to boil and form water vapor. The water vapor drifts into the upper chamber 21 to exchange heat with the drying box 3, causing the temperature of the drying box 3 to rise, thereby heating and drying the ore in the drying chamber 31. The high-temperature exhaust gas generated in the ore reduction reaction is used to provide heat energy to the drying box 3, thereby replacing the drying box 3 that converts electrical energy into heat energy through the internal electric heating elements, reducing the power consumption of ore reduction degree detection and lowering the cost of ore reduction degree detection.
[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An ore reduction degree detection device, comprising a reduction furnace (1), wherein the reduction furnace (1) is connected to a tail gas pipe (11), and characterized in that: A heating box (2) is provided on one side of the reduction furnace (1), and an upper chamber (21) and a lower chamber (22) are provided in the heating box (2), wherein the upper chamber (21) is located above the lower chamber (22), and the upper chamber (21) is used to accommodate heating gas, and the lower chamber (22) is used to accommodate heating liquid. A drying box (3) is detachably provided in the upper chamber (21), and a drying chamber (31) is provided in the drying box (3), and the drying chamber (31) is used to accommodate ore. A drying port (32) is provided on the top of the drying box (3), and the drying port (32) and the drying chamber (31) are communicated with each other. A group of heating pipes (4) are provided in the lower chamber (22), and the heating pipes (4) are communicated with the tail gas pipe (11).
2. The ore reduction degree detection device according to claim 1, characterized in that: One end of the heating tube (4) is connected to a shunt tube (41), which penetrates the side wall of the heating box (2). The end of the shunt tube (41) away from the heating tube (4) is connected to the end of the tail gas pipe (11) away from the furnace body. The end of the heating tube (4) away from the air inlet pipe is connected to a converging tube (42), which penetrates the side wall of the heating box (2). The end of the converging tube (42) away from the heating tube (4) is connected to an exhaust pipe (43).
3. The ore reduction degree detection device according to claim 1, characterized in that: A water inlet pipe (51) and a water outlet pipe (52) are provided through the heating box (2); a water inlet valve (511) is provided on the water inlet pipe (51); a water outlet valve (521) is provided on the water outlet pipe (52); both the water inlet pipe (51) and the water outlet pipe (52) are in communication with the lower chamber (22); and a liquid level gauge (5) is provided in the drying box (3).
4. The ore reduction degree detection device according to claim 1, characterized in that: A heating port (23) is provided on the top of the heating box (2), the drying box (3) is inserted into the heating port (23), a carrying plate (33) is fixedly provided on the side wall of the drying box (3), and the bottom of the carrying plate (33) abuts against the top of the heating box (2).
5. The ore reduction degree detection device according to claim 4, characterized in that: A snap ring groove (63) is provided in the drying port (32), an abutting ring groove (64) is provided on the inner top wall of the snap ring groove (63), a plurality of snap hooks (62) are provided in the snap ring groove (63) and the abutting ring groove (64), one end of the snap hook (62) is located in the abutting ring groove (64), a snap arm (61) is provided on the other end of the snap hook (62), an elastic frame (6) is provided at the top end of the snap arm (61), and the elastic frame (6) is used for deformation.
6. The ore reduction degree detection device according to claim 4, characterized in that: A sealing ring (24) is provided on the inner wall of the heating port (23), and the sealing ring (24) is in contact with the outer wall of the drying box (3). A discharge pipe (7) is provided through the heating box (2), and a discharge valve (71) is provided on the discharge pipe (7).
7. The ore reduction degree detection device according to claim 6, characterized in that: One end of the discharge pipe (7) is communicated with the upper chamber (21), and the other end of the discharge pipe (7) is connected to a condensation box (73), and a condensation pipe (75) is connected to the condensation box (73), and a condensation valve (74) is provided on the condensation pipe (75).
8. The ore reduction degree detection device according to claim 4, characterized in that: A sealing ring (81) is inserted into the drying port (32), the side wall of the sealing ring (81) and the inner wall of the drying port (32) are in contact with each other, a sealing cover (8) is fixedly provided on the top of the sealing ring (81), the bottom of the sealing cover (8) is in contact with the top of the drying box (3), an air outlet pipe (9) is provided through the sealing cover (8), and an air outlet one-way valve (91) is provided on the air outlet pipe (9).
9. The ore reduction degree detection device according to claim 8, characterized in that: One end of the air outlet pipe (9) is connected to the drying chamber (31), and the other end of the air outlet pipe (9) is connected to a second condensation box (93), and the second condensation box (93) is connected to a second condensation pipe (95), and the second condensation pipe (95) is provided with a second condensation valve (94).