Tail gas purification structure of high-carbon ferrochrome smelting furnace

Abstract

The utility model relates to the technical field of smelting furnaces, discloses a tail gas purification structure for a high-carbon ferrochrome smelting furnace, and solves the problems that carbon monoxide resources are wasted and the environment is polluted due to the fact that tail gas generated by smelting of an existing smelting furnace is directly emptied at present. One side of the waste heat utilization component is fixedly connected with a pipeline pump component, the waste heat utilization component comprises a second smoke exhaust pipeline and a heat conduction pipe fixedly connected to the lower end of the second smoke exhaust pipeline, the lower end of the second smoke exhaust pipeline is fixedly connected with a water storage box, and the heat conduction pipe is located in the water storage box; and flue gas heat heats water in the water storage box through the heat conduction pipe, resource utilization of tail gas is achieved, meanwhile, repeated utilization of flue gas preheating is achieved, and energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to an exhaust gas purification structure of a high-carbon ferrochrome smelting furnace. Background Art

[0002] Industrial furnaces that perform heat treatment on various materials or workpieces during metallurgical production. Modern metallurgical industrial furnaces can be divided into three categories according to different heat sources: fuel furnaces, electric furnaces, and self-heating furnaces. Ferrochromium is the most important raw material for the production of stainless steel. It is mainly used in the production of stainless steel, ball bearing steel, tool steel, nitriding steel, heat-resistant steel, quenched and tempered steel, carburizing steel, and hydrogen-resistant steel. This is because chromium plays a decisive role in stainless steel. There is only one element that determines the properties of stainless steel, which is chromium. Each type of stainless steel must contain a certain amount of chromium. A large amount of waste gas, wastewater, and solid waste will be generated during the smelting process. These wastes contain many harmful substances, such as heavy metals and organic matter. If they are not handled properly, they will cause serious pollution to the environment. For example, the emission of waste gas into the atmosphere will have a serious impact on air quality; the discharge of wastewater into rivers and lakes will pollute water sources and affect the survival of aquatic organisms; if solid waste is not properly handled, it will occupy a large amount of land, and the harmful substances in it will penetrate into the soil and pollute groundwater.

[0003] Existing smelting furnaces currently directly discharge tail gas generated during smelting, which results in a waste of carbon monoxide resources and pollutes the environment. Utility Model Content

[0004] The utility model aims to provide a tail gas purification structure for a high carbon ferrochrome smelting furnace. The device is used to work, thereby solving the problem that the tail gas generated by the existing smelting furnace is directly discharged, which leads to waste of carbon monoxide resources and pollutes the environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-carbon ferrochrome smelting furnace exhaust gas purification structure, including a smelting furnace and a feeding component fixedly connected to one side of the smelting furnace, a pipe assembly fixedly connected to the side of the smelting furnace away from the feeding component, a waste heat utilization component fixedly connected to one end of the pipe assembly, a pipe pump component fixedly connected to one side of the waste heat utilization component, the waste heat utilization component includes a second smoke exhaust pipe and a heat conduction pipe fixedly connected to the lower end of the second smoke exhaust pipe, a water storage box fixedly connected to the lower end of the second smoke exhaust pipe, the heat conduction pipe is located inside the water storage box, and a water inlet pipe is fixedly connected to one side of the water storage box.

[0006] Preferably, the smelting furnace includes a furnace shell and an outer shell 1 fixedly connected to the upper end of the furnace shell, an oxygen gun fixedly connected to the outer surface of the furnace shell, and two oxygen guns are provided.

[0007] Preferably, a groove one is provided on the upper surface of the furnace shell, a molten iron outlet is fixedly connected to one side of the furnace shell, a slag outlet is fixedly connected to one side of the furnace shell, a groove two is provided on the upper surface of the furnace shell, a molten iron box is arranged below the molten iron outlet, a slag storage box is arranged below the slag outlet, and a graphite electrode is arranged inside the outer shell one, and the graphite electrode passes through the outer shell one to the bottom of the furnace shell.

[0008] Preferably, the feeding component includes a second shell and a conveyor belt arranged inside the second shell, a support column is fixedly connected to the lower end of the second shell, four support columns are arranged, and one end of the second shell corresponds to the first groove.

[0009] Preferably, the pipe assembly includes a smoke exhaust pipe 1 and a fan fixedly connected to the upper end of the smoke exhaust pipe 1, a transmission pipe fixedly connected to the upper end of the fan, and an end of the smoke exhaust pipe 1 corresponds to the groove 2.

[0010] Preferably, a groove three is provided on one side of the water storage box, an exhaust hole is fixedly connected to one side of the water storage box, and a control valve is provided inside the water inlet pipe.

[0011] Preferably, the pipeline pump component includes a vertical pipeline pump and a drain pipe 1 fixedly connected to one side of the vertical pipeline pump, and a drain pipe 2 fixedly connected to the other side of the vertical pipeline pump, and the drain pipe 1 matches the groove 3.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model proposes an exhaust gas purification structure of a high-carbon ferrochrome smelting furnace, comprising a smelting furnace and a feeding component fixedly connected to one side of the smelting furnace, a pipe assembly fixedly connected to the side of the smelting furnace away from the feeding component, a waste heat utilization component fixedly connected to one end of the pipe assembly, a pipe pump component fixedly connected to one side of the waste heat utilization component, the waste heat utilization component comprising a second smoke exhaust pipe and a heat conduction pipe fixedly connected to the lower end of the second smoke exhaust pipe, a water storage box fixedly connected to the lower end of the second smoke exhaust pipe, the heat conduction pipe is located inside the water storage box, a water inlet pipe is fixedly connected to one side of the water storage box, and the heat of the flue gas heats the water inside the water storage box through the heat conduction pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of a smelting furnace of the utility model;

[0016] Figure 3 It is a schematic diagram of the feeding component of the utility model;

[0017] Figure 4 It is a schematic diagram of a pipeline assembly of the utility model;

[0018] Figure 5It is a schematic diagram of the waste heat utilization component of the utility model;

[0019] Figure 6 This is a schematic diagram of the pipeline pump components of the utility model.

[0020] In the figure: 1. smelting furnace; 11. furnace shell; 111. groove one; 112. iron outlet; 1121. iron box; 113. slag outlet; 1131. slag storage box; 114. groove two; 12. shell one; 121. graphite electrode; 13. oxygen gun; 2. feeding parts; 21. shell two; 22. conveyor belt; 23. support column; 3. pipeline assembly; 31. smoke exhaust pipe one; 32. fan; 33. transmission pipeline; 4. waste heat utilization parts; 41. smoke exhaust pipe two; 42. heat conduction pipe; 43. water storage box; 431. groove three; 432. exhaust hole; 44. water inlet pipe; 5. pipeline pump parts; 51. vertical pipeline pump; 52. drain pipe one; 53. drain pipe two. DETAILED DESCRIPTION

[0021] 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.

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1-Figure 6A high-carbon ferrochrome smelting furnace tail gas purification structure comprises a smelting furnace 1 and a feeding component 2 fixedly connected to one side of the smelting furnace 1, a pipe assembly 3 fixedly connected to the side of the smelting furnace 1 away from the feeding component 2, a waste heat utilization component 4 fixedly connected to one end of the pipe assembly 3, a pipe pump component 5 fixedly connected to one side of the waste heat utilization component 4, the smelting furnace 1 comprises a furnace shell 11 and an outer shell 12 fixedly connected to the upper end of the furnace shell 11, an oxygen gun 13 fixedly connected to the outer surface of the furnace shell 11, two oxygen guns 13 are provided, a groove 111 is provided on the upper surface of the furnace shell 11, a molten iron outlet 112 is fixedly connected to one side of the furnace shell 11, a slag outlet 113 is fixedly connected to one side of the furnace shell 11, a groove 2 114 is provided on the upper surface of the furnace shell 11, a molten iron box 1121 is provided below the molten iron outlet 112, a slag storage box 1131 is provided below the slag outlet 113, and the outer shell 12 is provided inside Graphite electrode 121, graphite electrode 121 penetrates shell 12 to the bottom of furnace shell 11, feeding component 2 comprises shell 21 and a conveyor belt 22 is arranged inside shell 21, a support column 23 is fixedly connected to the lower end of shell 21, four support columns 23 are arranged, one end of shell 21 corresponds to groove 1 111, pipeline assembly 3 comprises exhaust pipe 1 31 and a fan 32 is fixedly connected to the upper end of exhaust pipe 1 31, a transmission pipe 33 is fixedly connected to the upper end of fan 32, one end of exhaust pipe 1 31 corresponds to groove 2 114, high carbon ferrochrome is transported to the inside of smelting furnace 1 through conveyor belt 22, oxygen is blown into furnace shell 11 through oxygen gun 13, molten iron after heating and melting flows into molten iron box 1121 from iron outlet 112, remaining floating slag flows into slag storage box 1131 from slag outlet 113, flue gas flows out from groove 2 114.

[0024] The waste heat utilization component 4 includes a smoke exhaust pipe 41 and a heat conduction pipe 42 fixedly connected to the lower end of the smoke exhaust pipe 41, a water storage box 43 fixedly connected to the lower end of the smoke exhaust pipe 41, the heat conduction pipe 42 is located inside the water storage box 43, a water inlet pipe 44 is fixedly connected to one side of the water storage box 43, a groove 3 431 is provided on one side of the water storage box 43, an exhaust hole 432 is fixedly connected to one side of the water storage box 43, a control valve is arranged inside the water inlet pipe 44, the pipeline pump component 5 includes a vertical pipeline pump 51 and a drain pipe 1 52 fixedly connected to one side of the vertical pipeline pump 51, a drain pipe 2 53 fixedly connected to the other side of the vertical pipeline pump 51, the drain pipe 1 52 matches the groove 3 431, water enters the water storage box 43 by opening the control valve, and exhausts through the exhaust hole 432, the flue gas heat heats the water inside the water storage box 43 through the heat conduction pipe 42, and the vertical pipeline pump 51 is turned on to pump out the heated water for heating the factory area.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Working principle:

[0027] High carbon ferrochrome is transported to the inside of the smelting furnace 1 through the conveyor belt 22, the graphite electrode 121 heats and melts the high carbon ferrochrome, and oxygen is blown into the furnace shell 11 through the oxygen lance 13. The heated and melted molten iron flows into the molten iron box 1121 from the iron outlet 112, and the remaining floating slag flows into the slag storage box 1131 from the slag outlet 113, and the flue gas flows out from the groove 114. The fan 32 pushes the flue gas to the waste heat utilization component 4, and the control valve is opened to allow water to enter the water storage box 43. The heat of the flue gas heats the water inside the water storage box 43 through the heat conduction pipe 42, and the exhaust is carried out through the exhaust hole 432. The vertical pipeline pump 51 is turned on to pump out the heated water for heating the factory area.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[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 high carbon ferrochrome smelting furnace tail gas purification structure, comprising a smelting furnace (1) and a feeding component (2) fixedly connected to one side of the smelting furnace (1), a pipeline component (3) fixedly connected to the side of the smelting furnace (1) away from the feeding component (2), a waste heat utilization component (4) fixedly connected to one end of the pipeline component (3), and a pipeline pump component (5) fixedly connected to one side of the waste heat utilization component (4), characterized in that: The waste heat utilization component (4) comprises a second smoke exhaust pipe (41) and a heat conduction pipe (42) fixedly connected to the lower end of the second smoke exhaust pipe (41); a water storage box (43) fixedly connected to the lower end of the second smoke exhaust pipe (41); the heat conduction pipe (42) is located inside the water storage box (43); and a water inlet pipe (44) is fixedly connected to one side of the water storage box (43).

2. A high carbon ferrochrome smelting furnace tail gas purification structure according to claim 1, characterized in that: The smelting furnace (1) comprises a furnace shell (11) and an outer shell (12) fixedly connected to the upper end of the furnace shell (11); an oxygen gun (13) is fixedly connected to the outer surface of the furnace shell (11); and two oxygen guns (13) are provided.

3. A high carbon ferrochrome smelting furnace tail gas purification structure according to claim 2, characterized in that: The furnace shell (11) is provided with a groove 1 (111) on the upper surface, a molten iron outlet (112) is fixedly connected to one side of the furnace shell (11), a slag outlet (113) is fixedly connected to one side of the furnace shell (11), a groove 2 (114) is provided on the upper surface of the furnace shell (11), a molten iron box (1121) is provided below the molten iron outlet (112), a slag storage box (1131) is provided below the slag outlet (113), and a graphite electrode (121) is provided inside the outer shell 1 (12), and the graphite electrode (121) passes through the outer shell 1 (12) to the bottom of the furnace shell (11).

4. A high carbon ferrochrome smelting furnace tail gas purification structure according to claim 1, characterized in that: The feeding component (2) comprises a second shell (21) and a conveyor belt (22) arranged inside the second shell (21); a support column (23) is fixedly connected to the lower end of the second shell (21); four support columns (23) are arranged; and one end of the second shell (21) corresponds to the first groove (111).

5. The tail gas purification structure of a high carbon ferrochrome smelting furnace according to claim 1, characterized in that: The pipe assembly (3) comprises a smoke exhaust pipe (31) and a fan (32) fixedly connected to the upper end of the smoke exhaust pipe (31), a transmission pipe (33) fixedly connected to the upper end of the fan (32), and one end of the smoke exhaust pipe (31) corresponds to the groove (114).

6. A high carbon ferrochrome smelting furnace tail gas purification structure according to claim 1, characterized in that: A groove three (431) is provided on one side of the water storage box (43), an exhaust hole (432) is fixedly connected to one side of the water storage box (43), and a control valve is provided inside the water inlet pipe (44).

7. The tail gas purification structure of a high carbon ferrochrome smelting furnace according to claim 1, characterized in that: The pipeline pump component (5) comprises a vertical pipeline pump (51) and a drainage pipe 1 (52) fixedly connected to one side of the vertical pipeline pump (51), and a drainage pipe 2 (53) fixedly connected to the other side of the vertical pipeline pump (51), and the drainage pipe 1 (52) matches the groove 3 (431).

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