Environment-friendly dust collecting device for steel slag pool type hot disintegration process

Abstract

The invention discloses an environment-friendly dust collecting device for a steel slag pool type hot disintegration process. The environment-friendly dust collecting device comprises a slag disintegration pool; the dust collecting cover is arranged at the position of a pool opening of the slag disintegrating pool in a sealing and covering mode, and the dust collecting cover can be rotationally opened relative to the slag disintegrating pool through a rotary driving device; the dust collection assembly is communicated with the dust collection cover and is used for collecting dust into the slag disintegrating tank; and the dust suppression assembly is arranged on the side, facing the slag disintegrating pool, of the dust collection cover and used for suppressing dust when the dust collection cover is rotationally opened. Through the innovative design of the dust collection assembly, effective dust collection in the slag disintegrating tank is successfully achieved. By means of the function, the cleanliness of the operation environment is remarkably improved, emission of dust-containing steam flow wet flue gas is effectively reduced, and a cleaner and safer working environment is provided for steel slag pool type hot disintegration operation.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgy, and in particular relates to an environmentally friendly dust collecting device for a slag pool type hot stuffing process. Background Art

[0002] As a cutting-edge slag pretreatment method in the current steel industry, the slag pool hot stuffing process has been widely used in the industry due to its unique advantages. This process cleverly utilizes the waste heat resources of molten slag. By pumping water into the slag, the water vapor evaporates rapidly under high temperature conditions to form high-temperature and high-pressure saturated water vapor. These water vapors react chemically with the active components in the slag, especially with unstable components such as free calcium oxide (f-CaO), to generate stable substances such as calcium hydroxide (Ca(OH)2), thereby achieving effective stabilization of the slag.

[0003] However, although the slag pool hot stuffing process has performed well in improving the stability of slag, it has also exposed some problems that need to be solved in the actual operation process. In particular, while the process produces high-temperature and high-pressure saturated water vapor, it is also accompanied by the emission of a large amount of dust-containing steam flow wet flue gas. These wet flue gases contain not only water vapor, but also a large amount of fine particles and harmful gases, such as sulfur dioxide and nitrogen oxides, which pose a potential threat to the environment and human health.

[0004] Existing slag hot stuffing devices often have problems such as low processing efficiency and poor purification effect in treating these dusty steam flow wet flue gases. Although some devices are equipped with dust removal facilities, the dust removal effect is limited and it is difficult to completely remove fine particles and harmful gases in the flue gas. In addition, some devices also have shortcomings such as high operating costs and complex maintenance, which limits their wide application in actual production.

[0005] Therefore, the development of an efficient, environmentally friendly and economical treatment device and technology to address the problem of dusty steam flow and wet flue gas generated in the slag pool hot stuffing process has become a technical problem that needs to be urgently solved in the current steel industry. Summary of the invention

[0006] To solve the above problems, the purpose of the present invention is to provide an environmentally friendly dust collection device for the steel slag pool type hot stuffing process, which not only meets the production operation requirements of the steel slag pool type hot stuffing process, but also effectively realizes the dust collection function of the entire process of the steel slag pool type hot stuffing operation.

[0007] To achieve the above object, the technical solution of the present invention is: An environmentally friendly dust collecting device for a slag pool type hot stuffing process, comprising: Slag pool; A dust collecting hood and a sealing hood are arranged at the pool opening of the slag pool, and the dust collecting hood can be rotated and opened relative to the slag pool by a rotating driving device; A dust collecting assembly, connected to the dust collecting hood, for collecting dust into the slag pool; A dust suppression component is arranged on a side of the dust collecting hood facing the slag pool, and is used for suppressing dust when the dust collecting hood is rotated and opened.

[0008] According to an embodiment of the present invention, the dust suction component includes a dust suction pipe connected to the vacuum generating device, and the dust suction port of the dust suction pipe is connected to the dust collecting hood for sucking dust into the slag pool.

[0009] According to an embodiment of the present invention, a plurality of dust suction pipes are provided, and the dust suction assembly includes a main flue, and the dust outlets of the respective dust suction pipes are connected to the main flue.

[0010] According to an embodiment of the present invention, two dust suction ducts are provided, namely a first dust suction duct and a second dust suction duct.

[0011] According to an embodiment of the present invention, the dust collection assembly includes a wet dust removal device, and the smoke exhaust port of the main flue is connected to the wet dust removal device.

[0012] According to one embodiment of the present invention, a cooling water pipeline is included. A plurality of water spraying ports are provided on the cooling water pipeline. The water spraying ports are arranged in the dust collecting hood and are used to spray water into the slag pool.

[0013] According to one embodiment of the present invention, the rotary drive device includes a winch unit, a fixed pulley and a movable pulley, including a fixed bracket, which is arranged on one side of the slag pool, the fixed pulley is arranged on the top of the fixed bracket, and the movable pulley is arranged on the dust collecting hood, and the cable of the winch unit is sequentially wound around the fixed pulley and the movable pulley and then fixedly connected to the fixed bracket.

[0014] According to an embodiment of the present invention, a base is included, the fixed bracket and the hoisting unit are both arranged on the base, and one end of the dust collecting hood is rotatably connected to the base.

[0015] According to an embodiment of the present invention, the dust suppression component is a dry mist dust suppression device.

[0016] According to an embodiment of the present invention, a thermometer and a pressure gauge are provided in the slag simmering pool.

[0017] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: The present invention successfully realizes effective dust collection inside the slag pool through the innovative design of dust collection components. This function significantly improves the cleanliness of the working environment, effectively reduces the emission of dust-containing steam flow wet flue gas, and provides a cleaner and safer working environment for slag pool hot stuffy operations.

[0018] When the dust collecting hood rotates and opens, the dust suppression component can respond quickly and effectively suppress dust. This design not only ensures the air quality during the operation, but also avoids the pollution of the surrounding environment by smoke, reflecting the outstanding contribution of the invention in environmental protection.

[0019] By integrating cooling water pipelines, the present invention successfully meets the process production requirements of hot molten slag in the slag pool. The design of comprehensive dust collection, dust suppression and cooling water pipelines realizes dust suppression and dust collection of dust-containing steam flow wet flue gas generated during the hot slag pool operation, while meeting the process requirements of the hot slag pool production operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein: Figure 1 A top view of the present invention; Figure 2 It is a schematic diagram of the hoisting unit of the present invention; Figure 3 A side view of the dust collecting hood of the present invention when it is closed; Figure 4 It is a side view of the dust collecting hood of the present invention when it is opened.

[0021] Description of reference numerals: 1. Slag tank; 2. Dust hood; 3. First dust suction duct; 4. Second dust suction duct; 5. Main flue; 6. Wet dust removal device; 7. Cooling water pipeline; 8. Winch unit; 9. Fixed pulley; 10. Movable pulley; 11. Fixed bracket; 12. Cable; 13. Base; 14. Dry mist dust suppression device. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] See also Figures 1 to 4 The core of the present invention is to provide an environmentally friendly dust collection device for the steel slag pool hot stuffing process, which is used to suppress and collect dust from the dust-containing steam flow wet flue gas generated during the steel slag pool hot stuffing operation to achieve standard emissions and at the same time meet the process requirements of the steel slag pool hot stuffing production operation.

[0025] The environmentally friendly dust collecting device for the steel slag pool hot stuffing process of the present invention comprises a slag stuffing pool 1, a dust collecting hood 2, a dust suction assembly and a dust suppression assembly. The dust collecting hood 2 sealing cover is arranged at the pool mouth of the slag stuffing pool 1, and the dust collecting hood 2 can be rotated and opened relative to the slag stuffing pool 1 by a rotating driving device. The dust suction assembly is connected to the dust collecting hood 2 and is used to suck dust into the slag stuffing pool 1. The dust suppression assembly is arranged on the side of the dust collecting hood 2 facing the slag stuffing pool 1, and is used to suppress dust when the dust collecting hood 2 is rotated and opened, and the dust suppression assembly in this embodiment is a dry mist dust suppression device 14.

[0026] Specifically, the dust suction component includes a dust suction pipe connected to the vacuum generating device, and the dust suction port of the dust suction pipe is connected to the dust collecting hood 2, which is used to suck dust into the slag pool 1. There are several dust suction pipes, and the dust suction component includes a main flue 5, and the dust outlet of each dust suction pipe is connected to the main flue 5. In this embodiment, there are two dust suction pipes, namely a first dust suction pipe 3 and a second dust suction pipe 4.

[0027] The dust collection assembly also includes a wet dust removal device 6. The smoke outlet of the main flue 5 is connected to the wet dust removal device 6. The dust-containing steam flow wet flue gas extracted from the slag pool passes through the wet dust removal device 6 for flue gas treatment to meet the standards before being discharged. The wet dust removal device 6 can be designed and selected according to the specific emission standard target value to be achieved.

[0028] It also includes a cooling water pipeline 7, which is provided with a plurality of water spraying ports, which are arranged in the dust collecting hood 2 and are used to spray water into the slag pool 1. The cooling water pipeline 7 is used to meet the production needs of the hot slag process in the pit, such as: cooling of the initial slag, hot stuffing in the intermediate process, and adjusting the water volume over time.

[0029] The rotary drive device includes a winch unit 8, a fixed pulley 9 and a movable pulley 10, including a fixed bracket 11, which is arranged on one side of the slag pool 1, the fixed pulley 9 is arranged on the top of the fixed bracket 11, and the movable pulley 10 is arranged on the dust collecting hood 2. The cable 12 of the winch unit 8 is sequentially wound around the fixed pulley 9 and the movable pulley 10 and then fixedly connected to the fixed bracket 11.

[0030] The utility model comprises a base 13 , on which the fixing bracket 11 and the hoisting unit 8 are both arranged, and one end of the dust collecting hood 2 is rotatably connected to the base 13 .

[0031] A thermometer and a pressure gauge are also provided in the slag pool 1 for detecting the temperature and pressure in the slag pool 1 in real time.

[0032] The working process of the present invention is further described below: When the slag is turned into the slag pool 1 by lifting the can by a crane, the dust collecting hood 2 is driven to rotate and open by the hoisting unit 8, the first dust suction pipe 3 and the second dust suction pipe 4 are opened at the same time, the dry mist dust suppression device 14 is turned on, and the overflowed smoke and dust are sucked through the first dust suction pipe 3 and the second dust suction pipe 4, and the dust is suppressed by the dry mist dust suppression device 14.

[0033] During the slag sealing operation, the winch unit 8 drives the dust collecting hood 2 to rotate and close. The edge of the dust collecting hood 2 needs to be inserted into the slag sealing pool 1. The first dust suction pipe 3 and the second dust suction pipe 4 are closed to meet the process requirements of micro-pressure in the pit. At the same time, the cooling water pipeline 7 is opened. According to actual production needs, the temperature and pressure detection in the slag sealing pool 1 are linked to control and adjust the flow of the cooling water pipeline 7, and the dry mist dust suppression device 14 is closed.

[0034] When the excavator is performing shoveling and slag removal operations, the dust collecting hood 2 is opened by the hoisting unit 8, the first dust suction duct 3 and the second dust suction duct 4 are opened at the same time, and the dry mist dust suppression device 14 is opened synchronously.

[0035] After the dust is collected during the whole process of hot stuffing operation in the slag pool, it is discharged into the atmosphere through the discharge tube after being treated by the wet dust removal device 6 through the main flue 5 and meeting the standards.

[0036] The present invention provides an environmentally friendly dust collecting device for a slag pool type hot stuffing process, which not only meets the production operation requirements of the slag pool type hot stuffing process, but also effectively realizes the dust collecting function of the whole process of the slag pool type hot stuffing operation.

[0037] The present invention reasonably utilizes site space and occupies a small area. It not only meets the needs of machine operation space during the steel slag pool hot stuffing operation, but also meets the process requirements of water pumping during the steel slag pool hot stuffing production. At the same time, it maximizes the functions of dust suppression, dust collection and dust removal in the whole process of steel slag pool hot stuffing.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. An environmentally friendly dust collecting device for a slag pool hot stuffing process, characterized in that: include: Slag pool; A dust collecting hood and a sealing hood are arranged at the pool opening of the slag pool, and the dust collecting hood can be rotated and opened relative to the slag pool by a rotating driving device; A dust collecting assembly, connected to the dust collecting hood, for collecting dust into the slag pool; A dust suppression component is arranged on a side of the dust collecting hood facing the slag pool, and is used for suppressing dust when the dust collecting hood is rotated and opened.

2. The environmentally friendly dust collecting device for the slag pool hot stuffy process according to claim 1 is characterized in that: The dust suction component comprises a dust suction pipe which is connected to a vacuum generating device. The dust suction port of the dust suction pipe is connected to the dust collecting hood for sucking dust into the slag pool.

3. The environmentally friendly dust collecting device for the slag pool hot stuffy process according to claim 2 is characterized in that: There are a plurality of dust suction pipes, and the dust suction assembly comprises a main flue, and the dust outlets of the respective dust suction pipes are connected to the main flue.

4. The environmentally friendly dust collecting device for the slag pool hot stuffy process according to claim 3 is characterized in that: The dust suction pipes are provided with two, namely a first dust suction pipe and a second dust suction pipe.

5. The environmentally friendly dust collecting device for the slag pool hot stuffy process according to claim 3 is characterized in that: The dust collection assembly comprises a wet dust removal device, and the smoke exhaust port of the main flue is connected to the wet dust removal device.

6. The environmentally friendly dust collecting device for the slag pool hot stuffy process according to claim 1, characterized in that: It comprises a cooling water pipeline, on which a plurality of water spraying ports are arranged, and the water spraying ports are arranged in the dust collecting hood and are used for spraying water into the slag pool.

7. The environmentally friendly dust collecting device for the slag pool hot stuffing process according to claim 1 is characterized in that: The rotary drive device includes a winch unit, a fixed pulley and a movable pulley, and includes a fixed bracket, which is arranged on one side of the slag pool, the fixed pulley is arranged on the top of the fixed bracket, and the movable pulley is arranged on the dust collecting hood. The cable of the winch unit is sequentially wound around the fixed pulley and the movable pulley and then fixedly connected to the fixed bracket.

8. The environmentally friendly dust collecting device for the slag pool hot stuffing process according to claim 7 is characterized in that: It comprises a base, the fixing bracket and the hoisting unit are both arranged on the base, and one end of the dust collecting hood is rotatably connected to the base.

9. The environmentally friendly dust collecting device for the slag pool hot stuffing process according to claim 1, characterized in that: The dust suppression component is a dry mist dust suppression device.

10. The environmentally friendly dust collecting device for the slag pool hot stuffing process according to any one of claims 1 to 9, characterized in that: A thermometer and a pressure gauge are arranged in the slag simmering pool.

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