Efficient energy-saving type converter coal gas recovery device for steel production

Abstract

The application discloses a kind of high-efficiency energy-saving converter gas recovery device for steel production, and relates to the technical field of steel production, including converter gas conveying pipe, one end of converter gas conveying pipe is fixedly connected with gas cooling bin, the output end of gas cooling bin is fixedly connected with dust removal bin, and the output end of dust removal bin is fixedly connected with gas storage tank.The electric telescopic rod drives water supply and a plurality of spray pipes to reciprocate periodically, so that the plurality of spray pipes evenly spray normal temperature water through the spray head on the inner side of the cooling sub-bin.The water droplets sprayed on the inner side of the cooling sub-bin transfer heat with the high-temperature converter gas through the cooling sub-bin, transferring heat from the converter gas to the water, recycling the heat in the gas, achieving high efficiency and energy saving.The water droplets do not directly contact the converter gas, ensuring that the water droplets do not contain other impurities, facilitating subsequent recycling and reuse of water resources.

Description

Technical Field

[0001] This invention relates to the field of steel production technology, specifically to a high-efficiency and energy-saving converter gas recovery device for steel production. Background Technology

[0002] Converter gas recovery devices are environmentally friendly and energy-saving equipment used in the converter steelmaking process of the iron and steel smelting industry. Through specific process flow and equipment combination, they collect, purify, cool, store and transport the gas (i.e., converter gas) rich in combustible components such as carbon monoxide generated during converter blowing, realizing the recovery and reuse of this secondary energy source. This not only reduces environmental pollution and energy waste caused by direct emissions of gas, but also provides enterprises with alternative fuel resources, reducing production energy consumption and costs. It is an important facility for steel enterprises to achieve clean production and a circular economy.

[0003] For example, a converter gas recovery device, as disclosed in Chinese Patent Publication No. CN119061231B, includes: a furnace hood, which is fitted over the outside of the furnace body and has an installation platform located above the furnace body; a first pipe that is annular and mounted on the installation platform, the diameter of the first pipe being larger than the diameter of the furnace opening, the first pipe being used to introduce inert gas, the first pipe having several first air holes facing the furnace body; and a second pipe that is annular and located below the first pipe and above the furnace body, the diameter of the second pipe being larger than the diameter of the first pipe, the second pipe being connected to the first pipe, the second pipe having several second air holes facing the furnace body, and the inert gas ejected from the second air holes intersecting with the inert gas ejected from the first air holes.

[0004] Traditional cooling methods, such as direct water mist spraying, can achieve rapid cooling by utilizing the latent heat of vaporization of water, but they have significant drawbacks. Firstly, solid particles carried in the converter gas contaminate the sprayed water mist, forming difficult-to-treat wastewater. This wastewater, due to its high impurity content, fails to meet the water quality standards for reuse, leading to water waste. Secondly, recovering the heat contained in the wastewater is challenging. Conventional heat recovery equipment struggles to effectively separate solid impurities from the heat in the wastewater, resulting in low heat recovery efficiency and hindering the efficient utilization and recycling of heat. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency and energy-saving converter gas recovery device for steel production, in order to solve the problems mentioned in the background art, such as the solid particles carried in converter gas contaminating the sprayed water mist, forming wastewater that is difficult to treat, and the difficulty in recovering the heat contained in the wastewater. Conventional heat recovery equipment is unable to effectively separate solid impurities and heat in wastewater, resulting in low heat recovery efficiency and difficulty in achieving efficient utilization and recycling of heat.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving converter gas recovery device for steel production, comprising a converter gas conveying pipe, one end of which is fixedly connected to a gas cooling chamber, the output end of which is fixedly connected to a dust removal chamber, the output end of which is fixedly connected to a gas storage tank, water mist spraying components on both sides of the gas cooling chamber, and hot water collection chambers fixedly installed on both sides of the gas cooling chamber.

[0007] The gas cooling chamber includes a chamber body and a chamber cover, which are fixedly connected to each other by bolts. Several cooling sub-chambers are fixedly installed inside the chamber body and the chamber cover. The cooling sub-chambers are made of brass. Water droplet attachment nets are symmetrically fixedly installed on the inner side of the cooling sub-chambers. Water droplets are attached to the inner side of the cooling sub-chambers for cooling. The outer side of the cooling sub-chambers comes into contact with the high-temperature converter gas to transfer heat.

[0008] The water mist spraying assembly includes a water supply unit, several spray pipes, and a reciprocating drive assembly. The drive end of the reciprocating drive assembly is fixedly connected to one side of the water supply unit, and the other side of the water supply unit is fixedly connected to one side of several spray pipes. Several nozzles are fixedly connected to the outside of the several spray pipes. The reciprocating drive assembly drives the water supply unit and several spray pipes to perform periodic reciprocating motion, so that the several spray pipes spray room temperature water evenly onto the inside of the cooling sub-compartment through the nozzles.

[0009] Preferably, the water droplet attachment net includes an installation frame and several metal wires. The two ends of the several metal wires are fixedly installed on the inner side of the installation frame. The several metal wires are interlaced and attached to one side of the cooling sub-compartment. The fine water droplets sprayed by the water mist spraying component can adhere to the inside of the metal wires for a long time, so that the original water droplets and subsequent water droplets form a continuous water film.

[0010] Preferably, the reciprocating drive assembly includes a mounting frame and an electric telescopic rod. One side of one end of the mounting frame is fixedly connected to one end of the electric telescopic rod, and the drive end of the electric telescopic rod is fixedly connected to one side of the water supply unit. The mounting frame is fixedly installed on the outside of the gas cooling chamber by bolts.

[0011] Preferably, the water supply device includes a water supply pipe and a support frame. The water supply pipe is fixedly installed inside the support frame. Several branch pipes are fixedly connected to one side of the water supply pipe. The other end of the several branch pipes is fixedly connected to one side of the spray pipe. A water supply hose is fixedly connected to the other side of the water supply pipe. Room temperature water is supplied to the inside of the water supply pipe through the water supply hose.

[0012] Preferably, a number of support steel cables are fixedly connected to one side of the support frame, and an adapter is fixedly connected to the other end of the support steel cables. The adapter is fixedly installed on the outside of the other end of the diversion pipe.

[0013] Preferably, the hot water collection chamber includes a water-blocking frame and a water-inlet channel. The water-blocking frame is fixedly welded to one side of the gas cooling chamber, and the water-inlet channel is fixedly installed on one side of the water-blocking frame. The water-blocking frame is used to prevent hot water from flowing into the external environment.

[0014] Preferably, a water outlet is provided on one side of the water-blocking frame, and the water outlet is located directly above the water inlet channel. A drain outlet is provided at one end of the water inlet channel, and a drain pipe is fixedly connected to one end of the drain outlet. The hot water collected in the water inlet channel flows into the interior of the drain pipe through the drain outlet.

[0015] Preferably, the bottom of the inner side of the water inlet tank is an inclined slope, and the lowest point of the slope is located on one side of the drain outlet. The hot water falling into the bottom of the water inlet tank flows to one side of the drain outlet under the guiding effect of the inclined slope.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, the electric telescopic rod in the reciprocating drive assembly drives the water supply device and several spray pipes to perform periodic reciprocating motion, so that the several spray pipes spray room temperature water evenly on the inner side of the cooling sub-compartment through the nozzles. The water droplets sprayed on the inner side of the cooling sub-compartment transfer heat through the cooling sub-compartment to the high temperature converter gas, so that the heat in the converter gas is transferred to the water, and the heat in the gas is recovered and utilized to achieve the purpose of high efficiency and energy saving. At the same time, the water droplets do not directly contact the converter gas, ensuring that the water droplets do not contain other impurities, which facilitates the subsequent recycling and reuse of water resources.

[0018] 2. In this invention, the nozzles mounted on the spray pipe assembly can spray room temperature water in a uniform mist onto the inner side of the cooling sub-compartment. Based on the metal wire mesh structure of the water droplet adhesion net, the water mist can preferentially adhere to the surface of the metal wires and form a continuous water film with the existing droplets. This design transforms the spherical droplet contact mode of traditional planar spraying into a mesh structure planar contact mode, which significantly increases the effective heat exchange area between the brass wall surface of the inner side of the cooling sub-compartment and the cooling medium, significantly reduces the air gap thermal resistance, and enhances the heat conduction efficiency from the metal wall surface to the water film.

[0019] 3. In this invention, the inclined slope design at the bottom of the inner side of the water inlet tank creates a gravity-based drainage system without power, which allows the hot water dripping from the inner wall of the cooling sub-chamber to automatically converge towards the drain outlet under the action of gravity, avoiding the heat loss and impurity deposition problems caused by liquid stagnation in traditional flat-bottomed water tanks. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention;

[0022] Figure 3 This is a schematic diagram showing the connection relationship between the bin body and the bin cover in a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention.

[0023] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0024] Figure 5 This is a three-dimensional structural diagram of the water droplet attachment mesh in a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention.

[0025] Figure 6 This is a schematic diagram showing the positional relationship between the water mist spraying component and the hot water collection chamber in a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the water mist spraying component in a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention.

[0027] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle;

[0028] Figure 9 This is a three-dimensional structural diagram of the hot water collection chamber in a high-efficiency and energy-saving converter gas recovery device for steel production according to the present invention.

[0029] In the diagram: 1. Converter gas conveying pipe; 2. Gas cooling chamber; 21. Chamber body; 22. Chamber cover; 23. Cooling sub-chamber; 24. Water droplet attachment net; 241. Mounting frame; 242. Metal wire; 3. Water mist spraying assembly; 31. Water supply unit; 311. Water supply pipe; 312. Support frame; 313. Support cable; 314. Diverter pipe; 315. Adapter; 32. Spraying pipe; 321. Nozzle; 33. Reciprocating drive assembly; 331. Mounting frame; 332. Electric telescopic rod; 4. Hot water collection chamber; 41. Water baffle frame; 411. Water outlet; 42. Water inlet trough; 421. Drain outlet. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Refer to Figures 1-8As shown: A high-efficiency and energy-saving converter gas recovery device for steel production, wherein one end of the converter gas conveying pipe 1 is fixedly connected to a gas cooling chamber 2, the output end of the gas cooling chamber 2 is fixedly connected to a dust removal chamber, the output end of the dust removal chamber is fixedly connected to a gas storage tank, water mist spraying components 3 are provided on both sides of the gas cooling chamber 2, and hot water collection chambers 4 are fixedly installed on both sides of the gas cooling chamber 2 respectively.

[0032] The gas cooling chamber 2 includes a chamber body 21 and a chamber cover 22. The chamber body 21 and the chamber cover 22 are fixedly connected to each other by bolts. Several cooling sub-chambers 23 are fixedly installed inside the chamber body 21 and the chamber cover 22 respectively. The cooling sub-chambers 23 are made of brass. Water droplet attachment nets 24 are symmetrically fixedly installed on the inner side of the several cooling sub-chambers 23. Water droplets are attached to the inner side of the cooling sub-chambers 23 for cooling. The outer side of the cooling sub-chambers 23 is in contact with the high temperature converter gas to transfer heat.

[0033] The water mist spraying assembly 3 includes a water supply unit 31, several spray pipes 32, and a reciprocating drive assembly 33. The drive end of the reciprocating drive assembly 33 is fixedly connected to one side of the water supply unit 31, and the other side of the water supply unit 31 is fixedly connected to one side of the several spray pipes 32. Several nozzles 321 are fixedly connected to the outside of the several spray pipes 32. The reciprocating drive assembly 33 drives the water supply unit 31 and the several spray pipes 32 to perform periodic reciprocating motion, so that the several spray pipes 32 spray room temperature water evenly onto the inside of the cooling sub-compartment 23 through the nozzles 321.

[0034] The reciprocating drive assembly 33 includes a mounting frame 331 and an electric telescopic rod 332. One side of the mounting frame 331 is fixedly connected to one end of the electric telescopic rod 332. The drive end of the electric telescopic rod 332 is fixedly connected to one side of the water supply unit 31. The mounting frame 331 is fixedly installed on the outside of the gas cooling chamber 2 by bolts. The water supply unit 31 includes a water supply pipe 311 and a support frame 312. The water supply pipe 311 is fixedly installed inside the support frame 312. One side of the water supply pipe 311 is fixedly connected to several branch pipes 314. The other end of the several branch pipes 314 is fixedly connected to one side of the spray pipe 32. The other side of the water supply pipe 311 is fixedly connected to a water supply hose. Room temperature water is supplied to the inside of the water supply pipe 311 through the water supply hose. One side of the support frame 312 is fixedly connected to several support steel cables 313. The other end of the several support steel cables 313 is fixedly connected to an adapter 315. The adapter 315 is fixedly installed on the outside of the other end of the branch pipe 314.

[0035] In this embodiment, high-temperature converter gas enters the gas cooling chamber 2 through the converter gas delivery pipe 1. Several cooling sub-chambers 23 are fixedly installed inside the chamber body 21 and the chamber cover 22 of the gas cooling chamber 2. These cooling sub-chambers 23 form an arc-shaped heat dissipation duct inside the gas cooling chamber 2, increasing the contact area between the high-temperature converter gas and the cooling sub-chambers 23. The electric telescopic rod 332 in the reciprocating drive assembly 33 drives the water supply device 31 and several spray pipes 32 to perform periodic reciprocating motion, causing the spray pipes 32 to deliver room-temperature water through the nozzles. 321 is evenly sprayed on the inner side of the cooling sub-compartment 23. The water droplets sprayed on the inner side of the cooling sub-compartment 23 transfer heat to the high-temperature converter gas through the cooling sub-compartment 23, so that the heat in the converter gas is transferred to the water, and the heat in the gas is recovered and utilized to achieve the purpose of high efficiency and energy saving. At the same time, the water droplets do not directly contact the converter gas, ensuring that the water droplets do not contain other impurities, which facilitates the subsequent recycling and reuse of water resources. The hot water is effectively collected by the hot water collection compartment 4, and a very small amount of water vapor escapes through the opening on one side of the hot water collection compartment 4. This part of water vapor can be ignored.

[0036] The cooled converter gas then enters the dust removal chamber, where specialized dry electrostatic precipitators remove residual iron oxide dust, unburned carbon particles, and other solid impurities. The dry dust removal technology, with its highly efficient particulate matter capture capability, can reduce the dust content of the gas to below 10 mg / m³.

[0037] The purified converter gas is ultimately transported to a dedicated gas storage tank via a pressure control system. These storage tanks are either dry gas holders or wet gas tanks with excellent sealing performance, equipped with comprehensive pressure monitoring, leak alarms, and nitrogen protection devices to ensure the safety and stability of the gas storage process. This completes the entire process of gas recovery, from collection, cooling, and dust removal to storage, laying the foundation for subsequent energy utilization of the gas.

[0038] Example 2: Figure 1-8 As shown, the high-efficiency and energy-saving converter gas recovery device for steel production in this invention includes a converter gas conveying pipe 1, one end of which is fixedly connected to a gas cooling chamber 2, the output end of the gas cooling chamber 2 is fixedly connected to a dust removal chamber, the output end of the dust removal chamber is fixedly connected to a gas storage tank, water mist spraying components 3 are provided on both sides of the gas cooling chamber 2, and hot water collection chambers 4 are fixedly installed on both sides of the gas cooling chamber 2 respectively.

[0039] The gas cooling chamber 2 includes a chamber body 21 and a chamber cover 22. The chamber body 21 and the chamber cover 22 are fixedly connected to each other by bolts. Several cooling sub-chambers 23 are fixedly installed inside the chamber body 21 and the chamber cover 22 respectively. The cooling sub-chambers 23 are made of brass. Water droplet attachment nets 24 are symmetrically fixedly installed on the inner side of the several cooling sub-chambers 23. Water droplets are attached to the inner side of the cooling sub-chambers 23 for cooling. The outer side of the cooling sub-chambers 23 is in contact with the high temperature converter gas to transfer heat.

[0040] The water mist spraying assembly 3 includes a water supply unit 31, several spray pipes 32, and a reciprocating drive assembly 33. The drive end of the reciprocating drive assembly 33 is fixedly connected to one side of the water supply unit 31, and the other side of the water supply unit 31 is fixedly connected to one side of the several spray pipes 32. Several nozzles 321 are fixedly connected to the outside of the several spray pipes 32. The reciprocating drive assembly 33 drives the water supply unit 31 and the several spray pipes 32 to perform periodic reciprocating motion, so that the several spray pipes 32 spray water at room temperature... Water is evenly sprayed onto the inner side of the cooling sub-compartment 23 through the nozzle 321. The water droplet attachment net 24 includes a mounting frame 241 and several metal wires 242. The two ends of the several metal wires 242 are fixedly installed on the inner side of the mounting frame 241. The several metal wires 242 are interlaced and attached to one side of the cooling sub-compartment 23. The fine water droplets sprayed by the water mist spraying component 3 can adhere to the inside of the metal wires 242 for a long time, so that the original water droplets and subsequent water droplets form a continuous water film.

[0041] In this embodiment, room temperature water is sprayed in a uniform mist onto the inner side of the cooling sub-compartment 23 via the nozzle 321 mounted on the spray pipe 32. Based on the mesh structure of the metal wires 242 of the water droplet attachment mesh 24, the water mist preferentially adheres to the surface of the metal wires 242 and forms a continuous water film with the existing droplets. This design transforms the spherical droplet contact mode of traditional planar spraying into a mesh structure planar contact mode, significantly increasing the effective heat exchange area between the brass wall surface of the inner side of the cooling sub-compartment 23 and the cooling medium, significantly reducing the air gap thermal resistance, and enhancing the heat conduction efficiency from the metal wall surface to the water film. At the same time, the local low-temperature area formed during the evaporation of the initially attached droplets can prolong the liquid residence time of subsequent droplets, achieving continuous and efficient cooling through a dual exchange mechanism of sensible heat and latent heat.

[0042] The reciprocating drive component 33 drives the spray pipe 32 through periodic reciprocating motion, realizing the dynamic adjustment of the water mist coverage area of ​​the nozzle 321, forming a dynamic coverage of staggered spray trajectory. This design, through the optimized design of the motion trajectory, ensures that there are no spray blind spots on the inner wall of the cooling sub-compartment 23 and the entire area of ​​the water droplet attachment net 24, avoiding the problem of heat exchange efficiency reduction caused by the lack of local coverage in traditional fixed spray systems. Compared with the static spray structure, the dynamic spray mode can improve the uniformity of wetting on the inner surface of the cooling sub-compartment 23.

[0043] Example 3: According to Figures 1-9 As shown, the high-efficiency and energy-saving converter gas recovery device for steel production in this invention includes a converter gas conveying pipe 1, one end of which is fixedly connected to a gas cooling chamber 2, the output end of the gas cooling chamber 2 is fixedly connected to a dust removal chamber, the output end of the dust removal chamber is fixedly connected to a gas storage tank, water mist spraying components 3 are provided on both sides of the gas cooling chamber 2, and hot water collection chambers 4 are fixedly installed on both sides of the gas cooling chamber 2 respectively.

[0044] The gas cooling chamber 2 includes a chamber body 21 and a chamber cover 22. The chamber body 21 and the chamber cover 22 are fixedly connected to each other by bolts. Several cooling sub-chambers 23 are fixedly installed inside the chamber body 21 and the chamber cover 22 respectively. The cooling sub-chambers 23 are made of brass. Water droplet attachment nets 24 are symmetrically fixedly installed on the inner side of the several cooling sub-chambers 23. Water droplets are attached to the inner side of the cooling sub-chambers 23 for cooling. The outer side of the cooling sub-chambers 23 is in contact with the high temperature converter gas to transfer heat.

[0045] The water mist spraying assembly 3 includes a water supply unit 31, several spray pipes 32, and a reciprocating drive assembly 33. The drive end of the reciprocating drive assembly 33 is fixedly connected to one side of the water supply unit 31, and the other side of the water supply unit 31 is fixedly connected to one side of the several spray pipes 32. Several nozzles 321 are fixedly connected to the outer side of the several spray pipes 32. The reciprocating drive assembly 33 drives the water supply unit 31 and the several spray pipes 32 to perform periodic reciprocating motion, so that the several spray pipes 32 spray room temperature water evenly onto the inner side of the cooling sub-chamber 23 through the nozzles 321. The hot water collection chamber 4 includes a water-blocking frame 41 and a water inlet trough 42. The water-blocking frame 41 is fixedly welded to the gas cooling chamber 2. On one side, the water inlet trough 42 is fixedly installed on one side of the water-blocking frame 41. The water-blocking frame 41 is used to prevent hot water from flowing to the outside environment. A water outlet 411 is opened on one side of the water-blocking frame 41. The water outlet 411 is located directly above the water inlet trough 42. A drain outlet 421 is opened at one end of the water inlet trough 42. One end of the drain outlet 421 is fixedly connected to a drain pipe. The hot water collected by the water inlet trough 42 flows into the interior of the drain pipe through the drain outlet 421. The bottom of the inner side of the water inlet trough 42 is an inclined slope. The lowest point of the slope is located on one side of the drain outlet 421. The hot water falling into the bottom of the water inlet trough 42 flows to one side of the drain outlet 421 under the guidance of the inclined slope.

[0046] In this embodiment, hot water flows out from one end of the cooling sub-compartment 23, is blocked and drawn by the water-blocking frame 41 to one side of the outlet 411, and flows into the interior of the water inlet trough 42 through the outlet 411. The bottom of the inner side of the water inlet trough 42 is an inclined slope. The hot water falling into the bottom of the water inlet trough 42 flows to one side of the drain outlet 421 under the guidance of the inclined slope, thus completing the collection of hot water. The inclined slope design at the bottom of the inner side of the water inlet trough 42 constructs a gravity-based drainage system, so that the hot water dripping from the inner wall of the cooling sub-compartment 23 automatically converges to the drain outlet 421 under the action of gravity, avoiding the heat loss and impurity deposition problems caused by liquid stagnation in traditional flat-bottomed water tanks.

[0047] The operating method and working principle of this device: High-temperature converter gas enters the gas cooling chamber 2 through the converter gas delivery pipe 1. Several cooling sub-chambers 23 are fixedly installed inside the chamber body 21 and the chamber cover 22 of the gas cooling chamber 2. These cooling sub-chambers 23 form an arc-shaped heat dissipation air duct inside the gas cooling chamber 2, increasing the contact area between the high-temperature converter gas and the cooling sub-chambers 23. The electric telescopic rod 332 in the reciprocating drive assembly 33 drives the water supply device 31 and several spray pipes 32 to perform periodic reciprocating motion, causing the spray pipes 32 to dissipate ambient temperature gas. Water is evenly sprayed onto the inner side of the cooling chamber 23 through nozzle 321. The water droplets sprayed on the inner side of the cooling chamber 23 transfer heat with the high-temperature converter gas through the cooling chamber 23, so that the heat in the converter gas is transferred to the water. Based on the mesh structure of the metal wire 242 of the water droplet attachment net 24, the water mist can preferentially adhere to the surface of the metal wire 242 and form a continuous water film with the original droplets, thus recovering and utilizing the heat in the gas. The cooled converter gas then enters the dust removal chamber. After purification, the converter gas is finally transported to the special gas storage tank through the pressure control system.

[0048] Hot water flows out from one end of the cooling chamber 23, is blocked by the water-blocking frame 41, and converges on one side of the outlet 411. It then flows into the interior of the water inlet trough 42 through the outlet 411. The bottom of the inner side of the water inlet trough 42 is an inclined surface. The hot water falling into the bottom of the water inlet trough 42 flows to one side of the drain outlet 421 under the guidance of the inclined surface, thus completing the collection of hot water.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving converter gas recovery device for steel production, comprising a converter gas conveying pipe (1), characterized in that: One end of the converter gas conveying pipe (1) is fixedly connected to a gas cooling chamber (2), the output end of the gas cooling chamber (2) is fixedly connected to a dust removal chamber, the output end of the dust removal chamber is fixedly connected to a gas storage tank, water mist spraying components (3) are provided on both sides of the gas cooling chamber (2), and hot water collection chambers (4) are fixedly installed on both sides of the gas cooling chamber (2). The gas cooling chamber (2) includes a chamber body (21) and a chamber cover (22). The chamber body (21) and the chamber cover (22) are fixedly connected to each other by bolts. Several cooling sub-chambers (23) are fixedly installed inside the chamber body (21) and the chamber cover (22). The cooling sub-chambers (23) are made of brass. Water droplet attachment nets (24) are symmetrically fixedly installed on the inner side of several cooling sub-chambers (23). Water droplets are attached to the inner side of the cooling sub-chambers (23) for cooling. The outer side of the cooling sub-chambers (23) is in contact with the high temperature converter gas to transfer heat. The water mist spraying assembly (3) includes a water supply unit (31), several spray pipes (32) and a reciprocating drive assembly (33). The drive end of the reciprocating drive assembly (33) is fixedly connected to one side of the water supply unit (31). The other side of the water supply unit (31) is fixedly connected to one side of several spray pipes (32). Several nozzles (321) are fixedly connected to the outside of several spray pipes (32). The reciprocating drive assembly (33) drives the water supply unit (31) and several spray pipes (32) to perform periodic reciprocating motion, so that several spray pipes (32) spray room temperature water evenly on the inside of the cooling sub-compartment (23) through the nozzles (321). The water droplet attachment net (24) includes a mounting frame (241) and several metal wires (242). The two ends of the several metal wires (242) are fixedly installed on the inner side of the mounting frame (241). The several metal wires (242) are intertwined and attached to one side of the cooling sub-compartment (23). The fine water droplets sprayed by the water mist spraying component (3) can adhere to the inside of the metal wires (242) for a long time, and make the original water droplets and subsequent water droplets form a continuous water film.

2. The high-efficiency and energy-saving converter gas recovery device for steel production according to claim 1, characterized in that: The reciprocating drive assembly (33) includes a mounting bracket (331) and an electric telescopic rod (332). One side of one end of the mounting bracket (331) is fixedly connected to one end of the electric telescopic rod (332). The drive end of the electric telescopic rod (332) is fixedly connected to one side of the water supply unit (31). The mounting bracket (331) is fixedly installed on the outside of the gas cooling chamber (2) by bolts.

3. The high-efficiency and energy-saving converter gas recovery device for steel production according to claim 1, characterized in that: The water supply device (31) includes a water supply pipe (311) and a support frame (312). The water supply pipe (311) is fixedly installed inside the support frame (312). One side of the water supply pipe (311) is fixedly connected to several branch pipes (314). The other end of the several branch pipes (314) is fixedly connected to one side of the spray pipe (32). The other side of the water supply pipe (311) is fixedly connected to a water supply hose. Normal temperature water is supplied to the inside of the water supply pipe (311) through the water supply hose.

4. The high-efficiency and energy-saving converter gas recovery device for steel production according to claim 3, characterized in that: A number of support cables (313) are fixedly connected to one side of the support frame (312), and an adapter (315) is fixedly connected to the other end of the support cables (313). The adapter (315) is fixedly installed on the outside of the other end of the diversion pipe (314).

5. The high-efficiency and energy-saving converter gas recovery device for steel production according to claim 1, characterized in that: The hot water collection chamber (4) includes a water-blocking frame (41) and a water-inlet channel (42). The water-blocking frame (41) is fixedly welded to one side of the gas cooling chamber (2), and the water-inlet channel (42) is fixedly installed on one side of the water-blocking frame (41). The water-blocking frame (41) is used to prevent hot water from flowing to the outside environment.

6. A high-efficiency and energy-saving converter gas recovery device for steel production according to claim 5, characterized in that: A water outlet (411) is provided on one side of the water-blocking frame (41). The water outlet (411) is located directly above the water inlet trough (42). A drain outlet (421) is provided at one end of the water inlet trough (42). A drain pipe is fixedly connected to one end of the drain outlet (421). The hot water collected by the water inlet trough (42) flows into the interior of the drain pipe through the drain outlet (421).

7. A high-efficiency and energy-saving converter gas recovery device for steel production according to claim 6, characterized in that: The bottom of the inner side of the water inlet trough (42) is an inclined slope. The lowest point of the slope is located on one side of the drain outlet (421). The hot water falling into the bottom of the water inlet trough (42) flows to one side of the drain outlet (421) under the guidance of the inclined slope.

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