Sintering cup device for sintering test

Abstract

The utility model discloses a sintering cup device for a sintering test, which comprises a support table, an outer wall is arranged in the middle of the support table, an inner container is arranged in the outer wall, the inner container is obliquely arranged, a containing grate is arranged in the inner container, the lower part of the inner container is communicated with a negative pressure pipe, an ignition nozzle is arranged at the upper end of the inner container, and the ignition nozzle is connected with an air pipe and a gas pipe. A supporting column is installed on the surface of the support table, a swing frame is rotationally connected to the upper end of the supporting column, a lifting chain block is installed on the swing frame, the lifting chain block is connected with an ignition nozzle, combustion-supporting gas and combustible gas are provided through an air pipe and a gas pipe, and air heated by a combustion-supporting fan serves as ignition combustion-supporting gas for the combustion-supporting gas. Combustion-supporting gas and combustible gas are premixed in the ignition nozzle, the inner container has a certain length and is matched with the heat insulation layer to form the heat preservation channel, sintering cup ignition is carried out after sufficient combustion is carried out through the heat preservation channel, sufficient combustion of the combustible gas in the inner container is guaranteed, and combustion of iron ore is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical sintering, in particular to a sintering cup device used for sintering tests. Background Art

[0002] The sintering cup device is one of the commonly used equipment for iron ore sintering to explore sintering process parameters, improve sintering process flow and detect sintered ore performance.

[0003] In the related art, sintering cups mostly use an ignition nozzle to ignite the combustible gas. After the ignition command is issued, the electronic ignition device in the ignition nozzle ignites the gas. However, the size of the sintering cup used in the experiment is limited. When the combustible gas enters the sintering cup, there are problems such as uneven gas distribution, short gas mixing time, and easy gas overflow, which wastes energy. In addition, most of the existing sintering cups are cylindrical, and the iron sintered cakes in the iron ore sintering process are stuck, and the resistance to removal is large, which is not convenient. Utility Model Content

[0004] The purpose of the utility model is to provide a sintering cup device for sintering test to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sintering cup device for sintering test, comprising a support platform, an outer wall is installed in the middle of the support platform, an inner tank is arranged inside the outer wall, and the inner tank is arranged obliquely, and a containing grate is installed in the inner tank;

[0006] The inclined inner tank makes it easy to take out the sintered cake from the inner tank. The sintered cake is placed on the grate, which can control the position of the sintered cake in the inner tank, so that the sintered cake is in a better combustion position, improving the sintering effect.

[0007] The lower part of the inner tank is connected with a negative pressure pipe, the upper end of the inner tank is equipped with an ignition nozzle, the ignition nozzle is connected with an air duct and a gas pipe, the waste gas in the inner tank is extracted through the negative pressure pipe, and the air duct and the gas pipe provide oxygen and combustible gas;

[0008] A support column is installed on the surface of the bracket table, and the upper end of the support column is rotatably connected to a swing frame. A lifting chain is installed on the swing frame, and the lifting chain is connected to the ignition nozzle. The lifting and lowering of the ignition nozzle is controlled by the lifting chain to open the sintering cup. The rotation of the swing frame can offset the ignition nozzle to facilitate the removal of the sintered cake.

[0009] Furthermore, a first adjusting valve is connected to the other end of the air duct, the first adjusting valve is connected to the air inlet main pipe, and a second adjusting valve is installed on the upper surface of the negative pressure pipe. The amount of air entering can be adjusted through the first adjusting valve, and the negative pressure of the inner tank can be adjusted through the second adjusting valve.

[0010] Furthermore, a temperature gauge measuring thermocouple and a negative pressure gauge sensor connected to the inner tank are installed at the lower part of the outer wall surface, and a display is installed on the bracket, and the display is electrically connected to the temperature gauge measuring thermocouple and the negative pressure gauge sensor, so as to facilitate real-time viewing of the temperature and air pressure of the inner tank and make adaptive adjustments.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) Combustion-supporting gas and combustible gas are provided through air ducts and gas pipes. The combustion-supporting gas uses air heated by a combustion-supporting fan as the ignition combustion-supporting gas. The combustion-supporting gas and the combustible gas are premixed in the ignition nozzle. The inner tank has a certain length and cooperates with the thermal insulation layer to form a heat preservation channel. After the heat preservation channel is fully burned, the sintering cup is ignited to ensure that the combustible gas in the inner tank is fully burned, and the combustion of the iron ore is also more complete.

[0013] (2) The ignition nozzle can be lifted by lifting the fall chain, and the ignition nozzle can be offset by rotating the swing frame to prevent the ignition nozzle from affecting the removal of the sintered cake. The inner wall of the inner tank is slightly inclined, so the sintered cake will not be stuck in the inner tank during the removal process, reducing the resistance to the removal of the sintered cake. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the connection between the outer wall and the negative pressure gauge sensor of the utility model;

[0016] Figure 3 It is a top view of the inner container of the utility model.

[0017] In the figure: 1. bracket; 2. outer wall; 3. ignition nozzle; 4. gas pipe; 5. negative pressure pipe; 6. first adjustment valve; 7. air duct; 8. support column; 9. swing frame; 10. lifting chain; 11. main air inlet pipe; 12. negative pressure gauge sensor; 13. thermometer measuring thermocouple; 14. sealing flange; 15. thermal insulation layer; 16. liner; 17. holding grate; 18. second adjustment valve; 19. display. DETAILED DESCRIPTION

[0018] 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.

[0019] Example:

[0020] See also Figure 1-3 The utility model provides a technical solution: a sintering cup device for sintering test, comprising a support table 1, an outer wall 2 is installed in the middle of the support table 1, an inner liner 16 is arranged inside the outer wall 2, and the inner liner 16 is arranged obliquely, and a containing grate 17 is installed in the inner liner 16, and the diameter of the inner liner 16 decreases from top to bottom, so that the sintered cake will not be stuck when taking out the sintered cake, and the sintered iron ore is placed on the containing grate 17;

[0021] The lower part of the inner tank 16 is connected to a negative pressure pipe 5, and the upper end of the inner tank 16 is provided with an ignition nozzle 3, and the ignition nozzle 3 is connected to an air duct 7 and a gas pipe 4. The combustible gas sent by the gas pipe 4 can be propane gas, and the combustion-supporting gas sent by the air duct 7 is mixed with the propane gas by convection, and the ignition nozzle 3 ignites the propane gas;

[0022] A support column 8 is installed on the surface of the bracket platform 1, and the upper end of the support column 8 is rotatably connected to a swing frame 9. A lifting chain 10 is installed on the swing frame 9. The lifting chain 10 is connected to the ignition nozzle 3. The lifting and lowering of the ignition nozzle 3 can be controlled by pulling the lifting chain 10, and the inner tank 16 is sealed by the dead weight of the ignition nozzle 3.

[0023] In this embodiment, if Figure 1 As shown, the other end of the air duct 7 is connected to a first regulating valve 6, which is connected to an air inlet main pipe 11, and the air inlet main pipe 11 is connected to a combustion-supporting fan, which accelerates the air entering the inner tank 16 and heats the air, and adjusts the ratio of the combustion-supporting air volume to the propane gas through the first regulating valve 6.

[0024] In this embodiment, if Figure 1 As shown, a second regulating valve 18 is installed on the upper surface of the negative pressure tube 5. The function of the second regulating valve 18 is to control the cutting off of the negative pressure tube 5 so that the negative pressure of the inner tank 16 can be adjusted between -1 and -15Mpa.

[0025] In this embodiment, if Figure 3 As shown, a heat insulating layer 15 is provided between the inner liner 16 and the outer wall 2. The heat insulating layer 15 can improve the heat preservation effect of the sintering cup and prevent the outer wall 2 from being overheated to avoid scalding.

[0026] In this embodiment, if Figure 2 As shown, a thermometer measuring thermocouple 13 and a negative pressure gauge sensor 12 connected to the inner tank 16 are installed on the lower part of the surface of the outer wall 2, and a display 19 is installed on the support table 1, and the display 19 is electrically connected to the thermometer measuring thermocouple 13 and the negative pressure gauge sensor 12. The temperature and negative pressure of the inner tank 16 are digitally displayed visually through the display 19, which is convenient for checking the temperature and negative pressure.

[0027] In this embodiment, if Figure 1 and Figure 3 As shown, a sealing flange 14 is connected to the upper end of the outer wall 2, and the sealing flange 14 abuts against the ignition nozzle 3. The ignition nozzle 3 has a certain weight, and the contact area between the sealing flange 14 and the ignition nozzle 3 is large, thereby improving the sealing effect between the ignition nozzle 3 and the inner tank 16.

[0028] Specifically, when in use, the lifting chain 10 is pulled to lift the ignition nozzle 3, and then the iron ore is placed in the inner tank 16. The iron ore is supported by the containing grate 17, and the lifting chain 10 is pulled in the opposite direction to make the ignition nozzle 3 dock with the inner tank 16. The propane gas is sent to the inside of the ignition nozzle 3 through the gas pipe 4, and the combustion-supporting air sends the heated air to the air inlet main pipe 11. The air is then sent to the inside of the ignition nozzle 3 through the air duct 7, so that the propane gas and the hot air are fully mixed. After the ignition nozzle 3 ignites the propane gas, the flame burns from top to bottom in the inner tank 16, and the negative pressure pipe 5 extracts the exhaust gas generated by the combustion to ensure that the flame continues to burn from top to bottom in the inner tank 16 to smelt the iron ore. After sintering is completed, the ignition nozzle 3 is lifted. When taking out the sintered cake formed by the combustion of the iron ore, the space of the inner tank 16 increases from bottom to top during the taking out process, and it is more convenient to take out the sintered cake.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sintering cup device for sintering test, characterized in that: It comprises a support platform (1), an outer wall (2) is installed in the middle of the support platform (1), an inner container (16) is arranged inside the outer wall (2), and the inner container (16) is arranged in an inclined manner, and a containing grate (17) is installed in the inner container (16); The lower part of the inner container (16) is connected to a negative pressure pipe (5), the upper end of the inner container (16) is equipped with an ignition nozzle (3), and the ignition nozzle (3) is connected to an air duct (7) and a gas pipe (4); A support column (8) is installed on the surface of the support platform (1), the upper end of the support column (8) is rotatably connected to a swing frame (9), a lifting chain (10) is installed on the swing frame (9), and the lifting chain (10) is connected to the ignition nozzle (3).

2. A sintering cup device for sintering test according to claim 1, characterized in that: The other end of the air duct (7) is connected to a first regulating valve (6), and the first regulating valve (6) is connected to an air inlet main pipe (11).

3. A sintering cup device for sintering test according to claim 1, characterized in that: A second regulating valve (18) is installed on the upper surface of the negative pressure pipe (5).

4. A sintering cup device for sintering test according to claim 1, characterized in that: A heat insulation layer (15) is provided between the inner container (16) and the outer wall (2).

5. A sintering cup device for sintering test according to claim 1, characterized in that: A thermometer measuring thermocouple (13) and a negative pressure gauge sensor (12) connected to the inner container (16) are installed on the lower part of the surface of the outer wall (2); a display (19) is installed on the support platform (1), and the display (19) is electrically connected to the thermometer measuring thermocouple (13) and the negative pressure gauge sensor (12).

6. A sintering cup device for sintering test according to claim 1, characterized in that: The upper end of the outer wall (2) is connected to a sealing flange (14), and the sealing flange (14) abuts against the ignition nozzle (3).

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