Sintering optimization device

Abstract

The utility model relates to the technical field of sintering, and discloses a sintering optimizing device which comprises a preheating box, a circulating mechanism and a filtering mechanism, the circulating mechanism is arranged at the position, close to one side, of the upper end face of the preheating box, the filtering mechanism is arranged at the position of the upper end face of the circulating mechanism, and an inner shell is fixedly arranged in the preheating box; and the circulating mechanism comprises a water tank, a water pump, an air guide pipe, a water outlet pipe and a water inlet pipe, the water tank is fixedly arranged at the position, close to one side, of the upper end face of the preheating box, and a plurality of cooling fins are fixedly arranged on the outer side of the air guide pipe at equal intervals. According to the energy-saving sintering furnace, the circulating mechanism and the filtering mechanism are arranged, so that heat of hot air discharged from the sintering furnace can be recycled, raw materials are effectively preheated, subsequent sintering processing is facilitated, heat waste is reduced, temperature loss is reduced, the energy utilization rate is increased, and energy is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a sintering optimization device. Background Art

[0002] In the process of steel production, sintering devices are often used to process ore raw materials. Sintering devices usually mix raw materials such as iron ore, coke, limestone, etc. evenly and sinter them under high temperature conditions to form sintered ore with certain strength and suitable for smelting. Sintering into sintered ore can make the raw materials easier to smelt in blast furnaces and improve the fluidity and smelting efficiency of the raw materials in the furnace.

[0003] During sintering, a common sintering furnace usually needs to burn materials to heat up the sintering furnace so as to sinter the ore raw materials in the sintering furnace. During sintering, the combustion materials generally need to be ventilated to allow air to circulate. However, when the gas circulates, the gas in the sintering furnace usually takes away a large amount of heat when it flows out. This heat directly diffuses into the air, which can easily lead to heat loss, low thermal energy utilization efficiency, and energy waste.

[0004] Therefore, the utility model provides a sintering optimization device to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sintering optimization device, which effectively reutilizes the heat of the hot gas discharged in the sintering furnace and preheats the raw materials, thereby helping to reduce heat waste, reduce temperature loss, improve energy utilization, and optimize energy.

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

[0007] A sintering optimization device comprises a preheating box, a circulation mechanism and a filtering mechanism, wherein the circulation mechanism is arranged at one side of the upper end surface of the preheating box, and the filtering mechanism is arranged at the upper end surface of the circulation mechanism;

[0008] An inner shell is fixedly arranged inside the preheating box, and an auger is rotatably arranged inside the inner shell;

[0009] The circulation mechanism includes a water tank, a water pump, an air guide pipe, a water outlet pipe and a water inlet pipe. The water tank is fixedly arranged on one side of the upper end surface of the preheating box, and a plurality of heat sinks are fixedly arranged at equal intervals on the outside of the air guide pipe.

[0010] The filtering mechanism comprises a filter box, a No. 1 filter screen, a circulation pipe, a filtrate chamber, a vent pipe, a partition plate, and a No. 2 filter screen, and the filter box is fixedly arranged at the upper end surface of the water tank;

[0011] Through the above technical scheme, the raw materials to be sintered can be placed in the inner shell by setting up a preheating box, the gas discharged from the sintering furnace is passed into the air guide pipe, and part of the heat is dissipated into the water tank through the heat sink to heat the water in the water tank. The heated water is passed through the water pump, the water outlet pipe and the water inlet pipe to cooperate with each other to preheat the inner shell, thereby preheating the raw materials in the inner shell. At the same time, the air guide pipe passes the gas into the filter box, and the gas is filtered through the No. 1 filter and the No. 2 filter, and then filtered through the liquid in the filter liquid cavity to filter out impurities in the gas. The gas can continue to pass to the inner shell through the circulation pipe, so that the gas can directly heat the raw materials.

[0012] Furthermore, the air guide pipe is fixedly arranged inside the water tank, the water pump is fixedly arranged at a lower position on the other side of the water tank, the water outlet pipe is fixedly arranged at a lower end on the other side of the water tank, and the water pump is arranged between the water outlet pipes;

[0013] Through the above technical solution, the air duct is used to discharge the gas dissipated in the sintering furnace, so that the heat in the gas is diffused into the water in the water tank, and the water pump is used to introduce the heated water into the chamber between the preheating box and the inner shell, so as to heat the inner shell, which is convenient for preheating the raw materials in the inner shell.

[0014] Furthermore, the water inlet pipe is fixedly arranged at one side of the lower end of the water tank, the water inlet pipe respectively penetrates the water tank and the preheating box and reaches the inner position of the preheating box, and the water outlet pipe respectively penetrates the water tank and the preheating box and reaches the inner position of the preheating box;

[0015] Through the above technical solution, the water inlet pipe is used to introduce the water flowing between the water tank and the preheating tank into the water tank, so as to reheat the water, and the water outlet pipe is used to introduce the heated water into the chamber between the water tank and the preheating tank.

[0016] Furthermore, the No. 1 filter screen, the No. 2 filter screen and the partition are fixedly arranged in sequence inside the filter box, and the circulation pipe is fixedly arranged between the filter box and the inner shell;

[0017] Through the above technical solution, filter No. 1 and filter No. 2 are used to filter large impurities in the gas, and the circulation pipe is used to continue to pass the treated gas into the inner shell, so that the heat in the gas can be used to ventilate and preheat the raw materials in the inner shell.

[0018] Furthermore, the filtrate chamber is arranged between the partition plate and the filter box at one side, and the ventilation pipe is fixedly arranged between the partition plate and the filter box near the filtrate chamber;

[0019] Through the above technical solution, the filtrate cavity is used to add the filtering solution to filter the impurities in the gas, and the ventilation pipe is used to introduce the gas into the filtering solution to facilitate the gas to fully contact with the solution.

[0020] Furthermore, a feed hopper is fixedly provided at the other side of the upper end of the preheating box, and a discharge hopper is fixedly provided at the one side of the lower end of the preheating box;

[0021] Through the above technical solution, the feed hopper is used to add raw materials into the inner shell in the preheating box, and the discharge hopper is convenient for introducing the raw materials from the inner shell into the sintering furnace.

[0022] Furthermore, a motor is fixedly arranged at the middle position on the other side of the preheating box, and the output end of the motor is fixedly arranged at the other end of the auger;

[0023] Through the above technical solution, the motor can drive the auger to rotate, so that the raw materials in the inner shell are pushed to the discharge hopper, which makes it easier for the raw materials to be evenly heated and moved.

[0024] The utility model has the following beneficial effects:

[0025] 1. The utility model proposes a sintering optimization device, which can recover the heat of the hot air discharged in the sintering furnace by setting a circulation mechanism, and heat the water in the water tank through the air guide pipe and the heat dissipation plate, and then use the hot water to preheat the raw materials to be sintered, which is convenient for subsequent sintering processing, helps to reduce heat waste, reduce temperature loss, improve energy utilization, and optimize energy.

[0026] 2. The utility model proposes a sintering optimization device, which can filter impurities in hot air by setting a filtering mechanism. The filtered hot air can continue to pass into the inner shell through a circulation pipe, so that the hot air can fully contact with the raw materials to be sintered, thereby effectively preheating the raw materials, effectively improving the preheating effect and reducing heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0028] Figure 2 It is a front cross-sectional schematic diagram of the utility model;

[0029] Figure 3 It is a schematic diagram of the internal structure of the circulation mechanism in the utility model;

[0030] Figure 4 It is a schematic diagram of the internal structure of the filtering mechanism in the utility model.

[0031] Legend:

[0032] 1. Preheating box; 2. Circulation mechanism; 3. Filter mechanism; 4. Feed hopper; 5. Motor; 6. Inner shell; 7. Discharge hopper; 8. Auger; 201. Water tank; 202. Water pump; 203. Air duct; 204. Heat sink; 205. Water outlet pipe; 206. Water inlet pipe; 301. Filter box; 302. Filter screen No. 1; 303. Circulation pipe; 304. Filtrate chamber; 305. Ventilation pipe; 306. Partition; 307. Filter screen No. 2. DETAILED DESCRIPTION

[0033] 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.

[0034] Example

[0035] Reference Figure 1-4 The utility model provides an embodiment: a sintering optimization device, comprising a preheating box 1, a circulation mechanism 2 and a filtering mechanism 3, wherein the circulation mechanism 2 is arranged at a side position of the upper end surface of the preheating box 1, and the filtering mechanism 3 is arranged at a position of the upper end surface of the circulation mechanism 2;

[0036] An inner shell 6 is fixedly arranged inside the preheating box 1, and an auger 8 is rotatably arranged inside the inner shell 6. A feed hopper 4 is fixedly arranged at the other side of the upper end of the preheating box 1, and a discharge hopper 7 is fixedly arranged at one side of the lower end of the preheating box 1. A motor 5 is fixedly arranged at the middle position of the other side of the preheating box 1, and the output end of the motor 5 is fixedly arranged at the other end of the auger 8.

[0037] The inner shell 6 is fixedly arranged inside the preheating box 1. A corresponding chamber is arranged between the preheating box 1 and the inner shell 6 for the flow of water. The hot water circulates to heat the inner shell 6, which is beneficial to preheating the ore raw materials and improves the utilization rate of thermal energy. The feed hopper 4 is used to add raw materials into the inner shell 6 in the preheating box 1. The discharge hopper 7 is convenient for introducing the raw materials from the inner shell 6 into the sintering furnace. The motor 5 can drive the auger 8 to rotate, which is convenient for pushing the raw materials in the inner shell 6 from the feed hopper 4 to the discharge hopper 7. As the auger 8 rotates, the raw materials can be driven to move and stirred at the same time, so that the raw materials are evenly heated.

[0038] The circulation mechanism 2 includes a water tank 201, a water pump 202, an air guide pipe 203, a water outlet pipe 205 and a water inlet pipe 206. The water tank 201 is fixedly arranged at one side of the upper end surface of the preheating box 1. A plurality of heat sinks 204 are fixedly arranged at equal intervals on the outer side of the air guide pipe 203. The air guide pipe 203 is fixedly arranged inside the water tank 201. The water pump 202 is fixedly arranged at the lower end surface of the other side of the water tank 201. The water outlet pipe 205 is fixedly arranged at the lower end of the other side of the water tank 201. The water pump 202 is arranged between the water outlet pipes 205. The water inlet pipe 206 is fixedly arranged at one side of the lower end of the water tank 201. The water inlet pipe 206 penetrates the water tank 201 and the preheating box 1 respectively and reaches the inner position of the preheating box 1. The water outlet pipe 205 penetrates the water tank 201 and the preheating box 1 respectively and reaches the inner position of the preheating box 1.

[0039] The air guide pipe 203 is used to discharge the gas in the sintering furnace, so that the heat in the gas is diffused into the water in the water tank 201. The water pump 202 and the water outlet pipe 205 cooperate with each other to introduce the heated water into the chamber between the preheating box 1 and the inner shell 6, so as to heat the inner shell 6, which is convenient for preheating the raw materials in the inner shell 6. The water inlet pipe 206 is used to introduce the water flowing between the water tank 201 and the preheating box 1 into the water tank 201, so as to reheat the water.

[0040] The filter mechanism 3 includes a filter box 301, a No. 1 filter screen 302, a circulation pipe 303, a filtrate chamber 304, a ventilation pipe 305, a partition 306, and a No. 2 filter screen 307. The filter box 301 is fixedly arranged at the upper end surface of the water tank 201, the No. 1 filter screen 302, the No. 2 filter screen 307 and the partition 306 are fixedly arranged in the inner position of the filter box 301 in sequence, the circulation pipe 303 is fixedly arranged at a position between the filter box 301 and the inner shell 6, the filtrate chamber 304 is arranged at a side position between the partition 306 and the filter box 301, and the ventilation pipe 305 is fixedly arranged between the partition 306 and the filter box 301 near the filtrate chamber 304;

[0041] The air guide pipe 203 introduces the gas into the filter box 301, and the No. 1 filter 302 and the No. 2 filter 307 are set to filter large impurities in the gas. The filtrate cavity 304 is used to add the filter solution. The ventilation pipe 305 is provided with multiple holes at the lower end. The ventilation pipe 305 is used to introduce the gas into the filter solution to facilitate the full contact between the gas and the solution and to filter the impurities in the gas again. The circulation pipe 303 is used to continue to pass the treated gas into the inner shell 6 to facilitate the heat in the gas to ventilate and preheat the raw materials in the inner shell 6.

[0042] Working principle: By setting up the preheating box 1, the raw materials to be sintered can be put from the feed hopper 4 into the inner shell 6. The motor 5 is used to drive the auger 8 to rotate, so as to push the raw materials in the inner shell 6 from the feed hopper 4 to the discharge hopper 7. As the auger 8 rotates, the raw materials can be stirred while being driven to move, so that the raw materials are evenly heated. The gas discharged from the sintering furnace is passed into the air guide pipe 203. Through the heat sink 204, part of the heat of the gas in the air guide pipe 203 can be dissipated into the water tank 201, and the water in the water tank 201 is heated. The heated water cooperates with the water pump 202, the water outlet pipe 205 and the water inlet pipe 206 to preheat the inner shell 6, so that the raw materials in the inner shell 6 can be preheated. At the same time, the air guide pipe 203 passes the gas into the filter box 301, and the gas is filtered by the first filter screen 302 and the second filter screen 307, and then filtered by the liquid in the filter liquid cavity 304, so that the impurities in the gas can be filtered out. The gas can continue to be passed to the inside of the inner shell 6 through the circulation pipe 303, so that the gas can directly heat the raw materials, effectively improve the preheating effect, and is beneficial to the utilization of thermal energy.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sintering optimization device, comprising a preheating box (1), a circulation mechanism (2) and a filtering mechanism (3), characterized in that: The circulation mechanism (2) is arranged at a side position of the upper end surface of the preheating box (1), and the filtering mechanism (3) is arranged at a position of the upper end surface of the circulation mechanism (2); An inner shell (6) is fixedly arranged inside the preheating box (1), and an auger (8) is rotatably arranged inside the inner shell (6); The circulation mechanism (2) comprises a water tank (201), a water pump (202), an air guide pipe (203), a water outlet pipe (205) and a water inlet pipe (206); the water tank (201) is fixedly arranged on one side of the upper end surface of the preheating box (1); and a plurality of heat sinks (204) are fixedly arranged at equal intervals on the outside of the air guide pipe (203); The filtering mechanism (3) comprises a filtering box (301), a first filter screen (302), a circulation pipe (303), a filtrate chamber (304), a ventilation pipe (305), a partition plate (306), and a second filter screen (307); the filtering box (301) is fixedly arranged at an upper end surface of the water tank (201).

2. A sintering optimization device according to claim 1, characterized in that: The air guide pipe (203) is fixedly arranged at a position inside the water tank (201), the water pump (202) is fixedly arranged at a position below the end surface of the other side of the water tank (201), the water outlet pipe (205) is fixedly arranged at a position near the lower end of the other side of the water tank (201), and the water pump (202) is arranged between the water outlet pipes (205).

3. The sintering optimization device according to claim 1, characterized in that: The water inlet pipe (206) is fixedly arranged at a side position of the lower end of the water tank (201); the water inlet pipe (206) respectively penetrates the water tank (201) and the preheating box (1) to reach the interior of the preheating box (1); and the water outlet pipe (205) respectively penetrates the water tank (201) and the preheating box (1) to reach the interior of the preheating box (1).

4. The sintering optimization device according to claim 1, characterized in that: The first filter screen (302), the second filter screen (307) and the partition plate (306) are fixedly arranged in sequence inside the filter box (301), and the circulation pipe (303) is fixedly arranged between the filter box (301) and the inner shell (6).

5. The sintering optimization device according to claim 1, characterized in that: The filtrate chamber (304) is disposed between the partition plate (306) and the filter box (301) at a side position, and the ventilation pipe (305) is fixedly disposed between the partition plate (306) and the filter box (301) at a position close to the filtrate chamber (304).

6. The sintering optimization device according to claim 1, characterized in that: A feed hopper (4) is fixedly provided at the other side of the upper end of the preheating box (1), and a discharge hopper (7) is fixedly provided at one side of the lower end surface of the preheating box (1).

7. The sintering optimization device according to claim 1, characterized in that: A motor (5) is fixedly arranged at a middle position on the other side of the preheating box (1), and an output end of the motor (5) is fixedly arranged at the other end of the auger (8).

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