A silicomanganese ore heat furnace tail gas step-by-step utilization device

Abstract

The utility model discloses a kind of silicon manganese ore heat furnace tail gas step utilization device, belong to tail gas processing technical field, including heating furnace, the heating furnace upper end is fixedly connected with tail gas pipe, tail gas pipe one side is fixedly connected with conveyor, tail gas pipe one end is provided with heat exchanger, heat exchanger one side is provided with dust collector, valve assembly is provided on the surface of tail gas pipe, tail gas pipe upper end is fixedly connected with safety assembly;The utility model can be when reaction is violent in furnace, by pressure relief, effectively prevent the large amount of gas generated does not cause damage to pipeline, prevent the burst of pipeline, ensure the safety of operator, reduce economic loss, strong practicality, by setting valve assembly, gas flow can be controlled, because furnace reaction can be different with the amount of reaction, control gas entry amount and speed, can make instrument working condition keep well, improve utilization efficiency, strong practicality.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust gas treatment technology, specifically relating to a cascade utilization device for exhaust gas from a ferrosilicon manganese submerged arc furnace. Background Technology

[0002] The cascade utilization device for tail gas from ferrosilicon manganese submerged arc furnace is an integrated industrial system specifically designed for the tail gas emitted from submerged arc furnaces during the production of ferrosilicon manganese alloys. It aims to achieve efficient utilization of thermal energy, chemical energy, and potentially harmful components in the tail gas through multi-stage energy conversion and material recovery. With "temperature matching and cascade utilization" as its core concept, the device treats the tail gas in layers according to its energy grade, combining physical purification, chemical absorption, heat exchange, and power generation technologies to construct a multi-level utilization chain from high temperature to low temperature and from thermal energy to electrical energy, ultimately achieving a near-zero emission target.

[0003] Existing technologies, when reacting excessively in the furnace, produce a large amount of gas that can lead to excessive gas pressure inside the pipes, causing damage to pipes and instruments, resulting in cost losses, danger, and failure to guarantee worker safety. They are not very practical, and cannot control the amount of gas entering the instrument, which can lead to the instrument not reaching its optimal working efficiency and thus reducing work efficiency. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace, which features the ability to prevent excessive gas pressure and control gas flow rate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace, comprising a heating furnace, a tail gas pipe fixedly connected to the upper end of the heating furnace, a conveyor fixedly connected to one side of the tail gas pipe, a heat exchanger provided at one end of the tail gas pipe, a dust collector provided on one side of the heat exchanger, a valve assembly provided on the surface of the tail gas pipe, and a safety component fixedly connected to the upper end of the tail gas pipe.

[0006] Preferably, the safety component includes a cone-shaped block, a housing, and a telescopic component, wherein the housing is fixedly connected to the upper end of the exhaust pipe, the telescopic component is fixedly connected to the inner surface of the housing, and the cone-shaped block is fixedly connected to the lower end of the telescopic component.

[0007] Preferably, the upper end of the box is provided with a box top plate, and the box has a through hole.

[0008] Preferably, the telescopic assembly includes a telescopic plate, a damping rod, a return spring, and a fixed plate, wherein the damping rod is fixedly connected to the inner surface of the housing, the fixed plate is fixedly connected to the upper end of the damping rod, the return spring is provided on the surface of the damping rod, and the telescopic plate is slidably connected to the middle of the damping rod.

[0009] Preferably, the valve assembly includes a cylinder, a bearing handle, a receiving tube, and a connecting tube, wherein the connecting tube is provided on the surface of the exhaust pipe, the receiving tube is provided at the upper end of the connecting tube, the bearing handle is fixedly connected to the upper end of the receiving tube, and the cylinder is provided at the upper end of the bearing handle.

[0010] Preferably, the cylinder output end is fixedly connected to a blocking handle, and the receiving tube has a slot inside.

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

[0012] 1. By incorporating safety components, this utility model can effectively prevent the large amount of gas generated from damaging the pipelines when the reaction inside the furnace is violent, thus preventing pipeline rupture, ensuring the safety of operators, reducing economic losses, and demonstrating strong practicality.

[0013] 2. This utility model can control the gas flow rate by setting a valve assembly. Since the reaction inside the furnace will be different depending on the amount, controlling the amount and speed of gas entering can keep the instrument in good working condition, improve utilization efficiency, and make it highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the safety component of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the telescopic component of this utility model;

[0017] Figure 4 This is a schematic diagram of the valve assembly of this utility model.

[0018] In the diagram: 1. Heating furnace; 2. Exhaust pipe; 3. Safety component; 31. Conical block; 32. Box body; 33. Telescopic component; 331. Telescopic plate; 332. Damping rod; 333. Return spring; 334. Fixing plate; 4. Valve assembly; 41. Cylinder; 42. Bearing handle; 43. Receiving pipe; 44. Connecting pipe; 5. Heat exchanger; 6. Dust collector; 7. Conveyor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figure 1-4 The present invention provides the following technical solution: a cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace, comprising a heating furnace 1, a tail gas pipe 2 fixedly connected to the upper end of the heating furnace 1, a conveyor 7 fixedly connected to one side of the tail gas pipe 2, a heat exchanger 5 provided at one end of the tail gas pipe 2, a dust collector 6 provided on one side of the heat exchanger 5, a valve assembly 4 provided on the surface of the tail gas pipe 2, and a safety component 3 fixedly connected to the upper end of the tail gas pipe 2.

[0022] Specifically, the safety component 3 includes a cone block 31, a housing 32, and a telescopic component 33. The upper end of the exhaust pipe 2 is fixedly connected to the housing 32, the inner surface of the housing 32 is fixedly connected to the telescopic component 33, and the lower end of the telescopic component 33 is fixedly connected to the cone block 31.

[0023] By adopting the above technical solution, the conical block 31 cooperates with the tailpipe 2 port. When the air pressure is too high, it will push open the conical block 31, allowing the gas to enter the box 32, effectively preventing the air pressure inside the pipe from being too high. The telescopic component 33 controls the resetting of the conical block 31 and ensures closure when the air pressure is normal through elastic force.

[0024] Specifically, a top plate is provided at the upper end of the box 32, and a through hole is provided on the box 32.

[0025] By adopting the above technical solution, the upper end of the box 32 is provided with a box top plate, which can be opened to discharge the collected gas. The box 32 is provided with a through hole, which can cooperate with the conical block 31.

[0026] Specifically, the telescopic assembly 33 includes a telescopic plate 331, a damping rod 332, a return spring 333, and a fixing plate 334. The damping rod 332 is fixedly connected to the inner surface of the housing 32, the fixing plate 334 is fixedly connected to the upper end of the damping rod 332, the return spring 333 is provided on the surface of the damping rod 332, and the telescopic plate 331 is slidably connected to the middle of the damping rod 332.

[0027] By adopting the above technical solution, the telescopic plate 331 is slidably connected to the damping rod 332, directly bearing the cone block 31. The damping rod 332 provides guidance and damping effect for the telescopic movement. After the pressure is released, the return spring 333 pushes the cone block 31 to reset and block the exhaust pipe 2. The fixed plate 334 serves as the mounting base for the return spring 333.

[0028] In this embodiment, when in use: the conical block 31 cooperates with the tailpipe 2 port. When the air pressure is too high, it will push open the conical block 31, allowing gas to enter the box 32, effectively preventing the air pressure inside the pipe from being too high. The telescopic component 33 controls the resetting of the conical block 31 and ensures closure when the air pressure is normal through elastic force.

[0029] The telescopic plate 331 is slidably connected to the damping rod 332 and directly bears the cone block 31. The damping rod 332 provides guidance and damping effect for the telescopic movement. After the pressure is released, the return spring 333 pushes the cone block 31 to reset and block the exhaust pipe 2. The fixed plate 334 serves as the mounting base for the return spring 333.

[0030] The top of the box 32 is provided with a box top plate, which can be opened to discharge the collected gas. The box 32 has a through hole, which can be used to cooperate with the cone block 31.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that, specifically, the valve assembly 4 includes a cylinder 41, a bearing handle 42, a receiving tube 43, and a connecting tube 44. The surface of the exhaust pipe 2 is provided with a connecting tube 44, the upper end of the connecting tube 44 is provided with a receiving tube 43, the upper end of the receiving tube 43 is fixedly connected with a bearing handle 42, and the upper end of the bearing handle 42 is provided with a cylinder 41.

[0033] By adopting the above technical solution, the valve assembly 4 controls the flow rate of the exhaust gas in the exhaust pipe 2, the cylinder 41 provides power, and the output end controls the flow rate of the exhaust gas through the blocking handle. The bearing handle 42 connects the cylinder 41 and the receiving pipe 43. The receiving pipe 43 has a slot inside for the blocking handle of the cylinder 41 to slide. The connecting pipe 44 connects the exhaust pipe 2 and the receiving pipe 43, serving as the installation interface of the valve assembly 4.

[0034] Specifically, a blocking handle is fixedly connected to the output end of cylinder 41, and a slot is opened inside the receiving tube 43.

[0035] By adopting the above technical solution, a blocking handle is fixedly connected to the output end of the cylinder 41. The blocking handle can be pushed by the cylinder 41 to control the gas flow. A slot is opened inside the receiving tube 43 so that the blocking handle can move inside it.

[0036] In this embodiment, when in use: valve assembly 4 controls the flow rate of exhaust gas in exhaust pipe 2, cylinder 41 provides power, and the output end controls the flow rate of exhaust gas through the blocking handle. The bearing handle 42 connects cylinder 41 and receiving pipe 43. The receiving pipe 43 has a slot inside for the blocking handle of cylinder 41 to slide. The connecting pipe 44 connects exhaust pipe 2 and receiving pipe 43, serving as the installation interface of valve assembly 4.

[0037] A blocking handle is fixedly connected to the output end of the cylinder 41. The blocking handle can be pushed by the cylinder 41 to control the gas flow. A slot is opened inside the receiving tube 43 so that the blocking handle can move inside it.

[0038] The structure and operating principle of the heating furnace 1, heat exchanger 5, dust collector 6 and conveyor 7 in this utility model have been disclosed in a cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace disclosed in Chinese patent application number 202223487574.5.

[0039] The working principle and usage process of this utility model are as follows: When this utility model is in use, it is necessary to treat and utilize the tail gas of the heating furnace 1. The main body of the heating furnace 1, the ferrosilicon manganese submerged arc furnace, generates high-temperature tail gas, which provides a gas source for the tail gas treatment system. The tail gas pipe 2 transports the tail gas generated by the heating furnace 1 to the subsequent treatment unit and is the main channel for tail gas flow. The safety component 3 prevents the tail gas pipe 2 from being over-pressurized and causing an explosion. The overpressure is automatically relieved through a mechanical structure. The valve component 4 controls the flow rate of the tail gas in the tail gas pipe 2. The heat exchanger 5 recovers the waste heat in the tail gas for preheating air, steam generation, or other thermal energy utilization scenarios. The dust collector 6 removes dust particles from the tail gas to achieve gas purification and meet emission standards or subsequent utilization requirements. The conveyor 7 transports the raw materials to the submerged arc furnace.

[0040] The conical block 31 is matched with the exhaust pipe 2 port. When the air pressure is too high, it will push open the conical block 31, allowing the gas to enter the box 32, effectively preventing the air pressure inside the pipe from being too high. The telescopic component 33 controls the resetting of the conical block 31 and ensures closure when the air pressure is normal through elastic force.

[0041] The telescopic plate 331 is slidably connected to the damping rod 332 and directly bears the cone block 31. The damping rod 332 provides guidance and damping effect for the telescopic movement. After the pressure is released, the return spring 333 pushes the cone block 31 to reset and block the exhaust pipe 2. The fixed plate 334 serves as the mounting base for the return spring 333.

[0042] Valve assembly 4 controls the flow rate of exhaust gas in exhaust pipe 2. Cylinder 41 provides power, and the output end controls the flow rate of exhaust gas through a blocking handle. Carrying handle 42 connects cylinder 41 and receiving pipe 43. A slot is opened inside the receiving pipe 43 for the blocking handle of cylinder 41 to slide. Connecting pipe 44 connects exhaust pipe 2 and receiving pipe 43, serving as the installation interface of valve assembly 4.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for the cascade utilization of tail gas from a ferrosilicon manganese submerged arc furnace, comprising a heating furnace (1), wherein a tail gas pipe (2) is fixedly connected to the upper end of the heating furnace (1), a conveyor (7) is fixedly connected to one side of the tail gas pipe (2), a heat exchanger (5) is provided at one end of the tail gas pipe (2), and a dust collector (6) is provided on one side of the heat exchanger (5), characterized in that: A valve assembly (4) is provided on the surface of the exhaust pipe (2), and a safety assembly (3) is fixedly connected to the upper end of the exhaust pipe (2).

2. The device for the cascade utilization of tail gas from a ferrosilicon manganese submerged arc furnace according to claim 1, characterized in that: The safety component (3) includes a cone block (31), a housing (32) and a telescopic component (33), wherein the upper end of the exhaust pipe (2) is fixedly connected to the housing (32), the inner surface of the housing (32) is fixedly connected to the telescopic component (33), and the lower end of the telescopic component (33) is fixedly connected to the cone block (31).

3. The device for the cascade utilization of tail gas from a ferrosilicon manganese submerged arc furnace according to claim 2, characterized in that: The box body (32) is provided with a top plate at the upper end, and a through hole is provided on the box body (32).

4. The device for the cascade utilization of tail gas from a ferrosilicon manganese submerged arc furnace according to claim 3, characterized in that: The telescopic assembly (33) includes a telescopic plate (331), a damping rod (332), a return spring (333), and a fixing plate (334). The damping rod (332) is fixedly connected to the inner surface of the housing (32), the fixing plate (334) is fixedly connected to the upper end of the damping rod (332), the return spring (333) is provided on the surface of the damping rod (332), and the telescopic plate (331) is slidably connected to the middle of the damping rod (332).

5. A cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace according to claim 1, characterized in that: The valve assembly (4) includes a cylinder (41), a bearing handle (42), a receiving tube (43), and a connecting tube (44). The surface of the exhaust pipe (2) is provided with a connecting tube (44), the upper end of the connecting tube (44) is provided with a receiving tube (43), the upper end of the receiving tube (43) is fixedly connected with a bearing handle (42), and the upper end of the bearing handle (42) is provided with a cylinder (41).

6. A cascade utilization device for tail gas from a ferrosilicon manganese submerged arc furnace according to claim 5, characterized in that: The cylinder (41) has a fixed stop handle at its output end, and the receiving tube (43) has a slot inside.

Images