Waste gas waste heat recycling equipment of sinter cooler

Abstract

The utility model relates to the technical field of waste gas waste heat recycling equipment of sinter coolers, and discloses waste gas waste heat recycling equipment of a sinter cooler, which comprises a smoke exhaust pipe and a waste heat utilization mechanism, the waste heat utilization mechanism comprises a heat preservation box, a gas inlet is formed in the side face of the heat preservation box, and a gas outlet is formed in the side face of the heat preservation box. Two sets of pipe inserting holes are formed in the heat preservation box through a sealing cover plate, the heat preservation box is movably connected with a heat conduction water pipe through a mounting frame, an exhaust hole is formed in the upper portion, close to one end, of the heat conduction water pipe, and a water pump is fixedly mounted at one end of the heat conduction water pipe. Through the arrangement of the heat preservation box, the air inlet, the sealing cover plate, the pipe insertion hole, the mounting frame, the heat conduction water pipe, the exhaust hole and the water pump, cold water in the heat conduction water pipe can be heated through high-temperature flue gas exhausted by the smoke exhaust pipe, then the cold water is pumped out through the water pump for use, then the cold water is added for heating, operation is conducted repeatedly, waste heat in the high-temperature flue gas is recycled and exhausted, and the waste heat utilization efficiency is improved. Energy is saved, and the environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas waste heat recycling equipment of a sintering cooler, in particular to waste gas waste heat recycling equipment of a sintering cooler. Background Art

[0002] The sintering cooler is a process that combines sintering and cooling. When determining the design, the sintered ore must be cooled because the iron-making blast furnace uses a belt conveyor for feeding and requires the supply of cold sintered ore. The vertical sintering cooler device consists of three parts: a feeding device, a cooler body and a conveying device. The research and development of the cooler device, the source equipment of the waste heat recovery system, is the focus of the key technology of the waste heat power generation system. The sintering ore coolers currently in operation generally have problems such as high air leakage rate, low grade of hot exhaust gas and low recovery rate of waste heat resources. Breaking through the framework of traditional heat exchange methods and using a small tank-type closed heat exchange device to replace the bulky conventional horizontal cooler is an important topic for in-depth research in the field of energy saving in the sintering process of steel enterprises.

[0003] In the existing technology, the sintering cooler generates a large amount of waste gas with high heat content. Direct discharge will waste resources and damage the environment. Compared with directly heating domestic water, other methods have higher recovery requirements. Therefore, we propose a waste gas waste heat recovery device for the sintering cooler. Utility Model Content

[0004] The purpose of the utility model is to provide a waste gas waste heat recycling device for a sintering cooler to solve the problem that the sintering cooler generates a large amount of waste gas as mentioned in the background technology. The waste gas has a high heat content and direct discharge will waste resources and damage the environment. Compared with directly heating domestic water, other methods have relatively high recovery requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas waste heat recycling device for a sintering cooler, comprising a smoke exhaust pipe and a waste heat utilization mechanism, the waste heat utilization mechanism comprising an insulation box, an air inlet is provided on the side of the insulation box, the insulation box is provided with two groups of pipe insertion holes through a sealing cover plate, the insulation box is movably connected to a hot water pipe through a mounting frame, an exhaust hole is provided above one end of the hot water pipe, and a water pump is fixedly installed at one end of the hot water pipe.

[0006] As a preferred solution, a plug-in sleeve is inserted into the left end of the smoke exhaust pipe, and the plug-in sleeve is movably connected to a connecting conduit through a purification mechanism.

[0007] As a preferred solution, the right end of the connecting conduit is plugged into the inside of the air inlet, the sealing cover is fixedly installed on the upper end of the insulation box, and the two groups of insertion holes respectively penetrate the surface of the sealing cover near the two sides.

[0008] As a preferred solution, the mounting frame is fixedly mounted on the inner wall of the heat preservation box near the upper end, the two ends of the heat conducting water pipe are respectively inserted into the inside of the two groups of pipe insertion holes, and the heat conducting water pipe is movably mounted on the surface of the mounting frame.

[0009] As a preferred solution, the purification mechanism is arranged on the right side of the smoke exhaust pipe, and the purification mechanism includes a purification box, a purification filter element is arranged inside the purification box, and openings are penetrated on both sides of the purification box.

[0010] As a preferred solution, the smoke exhaust pipe is fixedly installed inside the opening, and a slot is provided on the front side of the purification box near the left side.

[0011] As a preferred solution, a smoke filter is inserted into the interior of the card slot, and a sealing sleeve is fixedly installed at the connection between the smoke filter and the card slot.

[0012] Technical effects and advantages of the utility model:

[0013] 1. Through the setting of the insulation box, air inlet, sealing cover, pipe hole, mounting frame, hot water pipe, exhaust hole and water pump, the high-temperature flue gas discharged from the exhaust pipe can heat the cold water in the hot water pipe, and then pump it out for use through the water pump, and then add cold water for heating, and the back and forth operation can be carried out to recycle the waste heat in the high-temperature flue gas and then discharge it, saving energy and protecting the environment.

[0014] 2. By setting up the purification box, opening, purification filter element, slot, smoke filter and sealing sleeve, the dust and harmful substances in the high-temperature flue gas can be filtered and adsorbed before the waste heat is recovered to avoid entering the air, thereby improving the practicality of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is an exploded view of the utility model.

[0017] Figure 3 It is an exploded diagram of the waste heat utilization mechanism of the utility model.

[0018] Figure 4 It is an exploded view of the purification mechanism of the utility model.

[0019] In the figure: 1. exhaust pipe; 2. plug-in sleeve; 3. connecting duct; 4. waste heat utilization mechanism; 41. insulation box; 42. air inlet; 43. sealing cover; 44. plug-in hole; 45. mounting frame; 46. hot water pipe; 47. exhaust hole; 48. water pump; 5. purification mechanism; 51. purification box; 52. opening; 53. purification filter element; 54. slot; 55. smoke filter; 56. sealing sleeve. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides Figure 1-4 The waste heat recycling device of a sintering cooler shown in the figure includes a smoke exhaust pipe 1 and a waste heat utilization mechanism 4, the waste heat utilization mechanism 4 includes a heat preservation box 41, an air inlet 42 is opened on the side of the heat preservation box 41, and two groups of pipe insertion holes 44 are opened in the heat preservation box 41 through a sealing cover plate 43. The heat preservation box 41 is movably connected to a hot water pipe 46 through a mounting frame 45, and an exhaust hole 47 is opened above the hot water pipe 46 near one end. A water pump 48 is fixedly installed at one end of the hot water pipe 46. The right end of the connecting conduit 3 is plugged into the inside of the air inlet 42, and the sealing cover plate 43 is fixedly installed at the upper end of the heat preservation box 41. The two groups of pipe insertion holes 44 respectively penetrate the surface of the sealing cover plate 43 near both sides. The mounting frame 45 is fixedly mounted on the inner wall of the heat-insulating box 41 near the upper end, and the two ends of the hot water pipe 46 are respectively inserted into the inside of the two groups of pipe insertion holes 44. The hot water pipe 46 is movably mounted on the surface of the mounting frame 45. The hot water pipe 46 is placed on the mounting frame 45 of the heat-insulating box 41, and then the two ends of the hot water pipe 46 are respectively inserted into the pipe insertion holes 44, and then cold water is introduced into the hot water pipe 46 from one end until the entire hot water pipe 46 is filled. After the high-temperature flue gas enters from the air inlet 42, it heats the cold water in the hot water pipe 46. After the preset time is reached, the water pump 48 is turned on to pump out the internal water for use, and the cycle is repeated to heat the cold water for reuse.

[0022] In this embodiment, the purification mechanism 5 is arranged on the right side of the smoke exhaust pipe 1. The purification mechanism 5 includes a purification box 51. A purification filter element 53 is arranged inside the purification box 51. Openings 52 are penetrated on both sides of the purification box 51. The smoke exhaust pipe 1 is fixedly installed inside the opening 52. A card slot 54 is opened on the front of the purification box 51 near the left side. A smoke filter 55 is inserted into the card slot 54. A sealing sleeve 56 is fixedly installed at the connection between the smoke filter 55 and the card slot 54. After the high-temperature smoke is discharged from the smoke exhaust pipe 1, it enters from the opening 52. First, the dust in the smoke will be adsorbed by the smoke filter 55 in the card slot 54, and then the harmful substances in the smoke will be adsorbed by the purification filter element 53, and finally it will be discharged from the connecting duct 3. The smoke filter 55 can be pulled out of the card slot 54 for cleaning at regular intervals, and the purification filter element 53 can be disassembled and replaced.

[0023] In this embodiment, a plug-in sleeve 2 is inserted into the left end of the smoke exhaust pipe 1, and the plug-in sleeve 2 is movably connected to a connecting duct 3 through a purification mechanism 5. The plug-in sleeve 2 is used to connect to the exhaust pipe of the sintering cooler, and the connecting duct 3 is used to connect the purification mechanism 5 and the waste heat utilization mechanism 4.

[0024] Working principle of the utility model: the utility model is a waste gas waste heat recycling device for a sintering cooler. After the high-temperature flue gas is discharged from the exhaust pipe 1, it enters from the opening 52. First, the dust in the flue gas will be adsorbed by the smoke filter 55 in the slot 54, and then the harmful substances in the flue gas will be adsorbed by the purification filter element 53, and finally discharged from the connecting duct 3. At regular intervals, the smoke filter 55 can be pulled out of the slot 54 for cleaning, and the purification filter element 53 can be disassembled and replaced.

[0025] Place the hot water pipe 46 on the mounting frame 45 of the heat preservation box 41, and then insert the two ends of the hot water pipe 46 into the insertion holes 44 respectively, and then introduce cold water into the hot water pipe 46 from one end until the entire hot water pipe 46 is filled. After the high-temperature flue gas enters from the air inlet 42, it heats the cold water in the hot water pipe 46. After the preset time is reached, turn on the water pump 48 to pump out the water inside for use, and repeat the cycle to heat the cold water for reuse.

[0026] 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 waste heat recycling device for a sintering cooler, comprising a smoke exhaust pipe (1) and a waste heat recycling mechanism (4), characterized in that: The waste heat utilization mechanism (4) comprises a heat preservation box (41), an air inlet (42) is provided on the side of the heat preservation box (41), two groups of pipe insertion holes (44) are provided on the heat preservation box (41) through a sealing cover plate (43), the heat preservation box (41) is movably connected to a hot water pipe (46) through a mounting frame (45), an exhaust hole (47) is provided above one end of the hot water pipe (46), and a water pump (48) is fixedly installed at one end of the hot water pipe (46).

2. The waste gas waste heat recycling device of a sintering cooler according to claim 1 is characterized in that: A plug-in sleeve (2) is inserted into the left end of the smoke exhaust pipe (1), and the plug-in sleeve (2) is movably connected to a connecting conduit (3) via a purification mechanism (5).

3. The waste gas waste heat recycling device of a sintering cooler according to claim 2 is characterized in that: The right end of the connecting conduit (3) is inserted into the interior of the air inlet (42), the sealing cover plate (43) is fixedly mounted on the upper end of the heat preservation box (41), and the two groups of pipe insertion holes (44) respectively penetrate the surface of the sealing cover plate (43) near the two sides.

4. The waste gas waste heat recycling device of a sintering cooler according to claim 3 is characterized in that: The mounting frame (45) is fixedly mounted on the inner wall of the heat preservation box (41) near the upper end, and the two ends of the hot water pipe (46) are respectively inserted into the inside of the two groups of pipe insertion holes (44), and the hot water pipe (46) is movably mounted on the surface of the mounting frame (45).

5. The waste gas waste heat recycling device of a sintering cooler according to claim 2 is characterized in that: The purification mechanism (5) is arranged on the right side of the smoke exhaust pipe (1), and comprises a purification box (51). A purification filter element (53) is arranged inside the purification box (51), and openings (52) are penetrated on both sides of the purification box (51).

6. The waste gas waste heat recycling device of a sintering cooler according to claim 5, characterized in that: The smoke exhaust pipe (1) is fixedly installed inside the opening (52), and a slot (54) is provided on the front side of the purification box (51) near the left side.

7. The waste gas waste heat recycling device of a sintering cooler according to claim 6, characterized in that: A smoke filter (55) is inserted into the interior of the card slot (54), and a sealing sleeve (56) is fixedly installed at the connection between the smoke filter (55) and the card slot (54).

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