Top dust removal system for high-rise frame of converter steelmaking workshop

Abstract

The utility model provides a converter steelmaking workshop high-rise frame top dust removal system which comprises a high-rise frame, a smoke gathering cover, a dust removal branch pipe and a dust removal header pipe, the smoke gathering cover is arranged on the top of the high-rise frame, and a closed gathering cavity is defined by a corresponding area of the smoke gathering cover and the top of the high-rise frame through a steel plate. According to the utility model, the roof flue gas collecting cover in a high-rise frame area and a roof steel structure are designed and combined into a whole, flue gas is effectively collected into a dust removal system in time, the investment cost is reduced, and the construction is safe and efficient.

Description

Technical Field

[0001] The present application relates to the technical field of industrial ventilation and dust removal, and in particular to a dust removal system on the top of a high-rise frame of a converter steelmaking workshop. Background Art

[0002] In order to improve the operating environment of operators and meet the requirements of ultra-low emissions, the converter workshop is equipped with a converter primary dust removal system, a secondary dust removal system and a tertiary dust removal system. The converter primary dust removal system collects the smoke generated during the converter blowing, and most of the CO in the smoke is recycled; the converter secondary dust removal system is mainly used to collect the smoke generated when the converter is adding iron, adding scrap steel and tapping steel, and can also collect the smoke escaping from the furnace mouth during the smelting process. The converter tertiary dust removal system mainly sets up hanging flue gas capture hoods on the charging span roof in front of the converter and under the high-rise frame roof directly above the furnace, respectively, to further collect the smoke escaping from the primary and secondary dust removal systems.

[0003] The conventional suspended flue gas collection hoods installed under the roof have the following disadvantages: 1. The smoke collection hood body is heavy and is installed under the roof. In order to meet the force requirements, a special supporting structure needs to be set up on the roof. The dead weight is often tens of tons or even hundreds of tons, consuming a large amount of steel; 2. The smoke collection hood has poor dust removal effect. For instantaneous explosive smoke, once it escapes from the hood body, it will emerge from the factory roof, which is not conducive to the protection of the surrounding environment of the factory; 3. The construction of the smoke collection hood is difficult and dangerous. After the roof construction is completed, the hood needs to be hoisted to a high altitude by a pulley for assembly and welding. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dust removal system on the top of a high-rise frame of a converter steelmaking workshop in response to the above-mentioned problems, which combines the roof smoke collection hood of the high-rise frame area with the roof steel structure design into a whole, so as to effectively solve the problems of poor smoke dust removal effect, difficult and dangerous construction in the existing process scheme.

[0005] The embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a dust removal system for the top of a high-rise frame of a converter steelmaking workshop, characterized in that it includes a high-rise frame, a smoke collection hood, a dust removal branch pipe and a dust removal main pipe. The smoke collection hood is installed on the top of the high-rise frame, and the corresponding area of ​​the smoke collection hood and the top of the high-rise frame is surrounded by a steel plate to form a closed collection cavity. A plurality of dust removal branch pipes are evenly distributed along the length direction of the smoke collection hood, and the dust removal branch pipes are connected to the dust removal main pipe.

[0007] In some optional implementation schemes, the high-rise frame includes a roof steel structure and exterior walls on both sides, and an interior wall is provided between the roof steel structure and the converter high-level silo platform.

[0008] In some optional embodiments, the smoke capture hood is installed at the highest point of the roof steel structure.

[0009] In some optional embodiments, the smoke collection hood is a single-slope roof structure, and the bottom of the smoke collection hood is connected to the roof steel structure.

[0010] In some optional implementation schemes, the dust removal main pipe is provided with an electric valve, or the plurality of dust removal branch pipes are respectively provided with electric valves.

[0011] In some optional embodiments, a through-length gutter is provided on the lowest side of the smoke collection hood.

[0012] The beneficial effects of the present application are as follows: the present application provides a dust removal system for the top of a high-rise frame of a converter steelmaking workshop, which combines the smoke collection hood on the top of the high-rise frame with the roof steel structure design into a whole, and utilizes the closed space formed by the slope of the top surface of the high-rise frame roof and the walls on both sides to divert and collect the smoke, which can effectively and timely collect the smoke into the dust removal system, and the dust removal effect is better; the conventional hanging smoke collection hood is eliminated, which can effectively reduce the use of steel and make the investment more economical; the construction is safe and efficient, and the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a side view of a specific embodiment of the utility model.

[0015] Figure 2 It is a front view of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0020] like Figure 1 , Figure 2 As shown, the utility model provides a dust removal system on the top of a high-rise frame of a converter steelmaking workshop, comprising a high-rise frame 1, a smoke collecting hood 2, a dust removal branch pipe 3 and a dust removal main pipe 4. The smoke collecting hood is installed on the top of the high-rise frame, and the corresponding area of ​​the smoke collecting hood and the top of the high-rise frame is surrounded by a steel plate to form a closed collection cavity. A plurality of dust removal branch pipes are evenly distributed along the length direction of the smoke collecting hood, and the dust removal branch pipes are connected to the dust removal main pipe. The dust removal main pipe is connected to a fan to discharge the smoke in the smoke collecting hood in time.

[0021] The high-rise frame includes a roof steel structure 5 and two side exterior walls 6. An inner wall 8 is provided between the roof steel structure and the converter high-level silo platform 7. The inner wall is a steel structure consisting of columns, purlins and steel plates. The inner wall can effectively block the smoke diffusion path, forcing the smoke to flow upward and eventually enter the smoke collection hood. A through-length gutter is provided at the lowest side of the smoke collection hood to facilitate the collection and discharge of rainwater.

[0022] The smoke collection hood is installed at the highest point of the roof steel structure to collect the upward hot air flow. The smoke collection hood is a single-slope roof structure, and the bottom of the smoke collection hood is connected to the roof steel structure. The slope of the top surface of the high-rise frame roof steel structure and the inner and outer walls form an effective closed space for smoke diversion and collection.

[0023] The smoke collection hood on the top of the high-rise frame and the roof steel structure are formed into an integral structure, and the roof steel structure is used as the supporting structure of the smoke collection hood.

[0024] An electric valve is provided on the dust removal main pipe, or electric valves 9 are provided on several dust removal branch pipes respectively, and the dust removal branch pipes and / or the dust removal main pipe are controlled by the electric valves to control the on-off of the dust removal branch pipes and / or the dust removal main pipe, thereby controlling the discharge of smoke.

[0025] When splashing occurs during smelting in converter 10, the instantaneous explosive flue gas generated will pass through the platforms of each floor of the high-rise frame to reach the upper area if it cannot be extracted by the secondary and tertiary dust removal systems in time. It will be guided into the flue gas collection hood through the effective closed space formed by the slope of the top surface of the roof steel structure and the inner and outer walls, and will be finally discharged through the dust removal branch pipe, the dust removal main pipe and the fan.

Claims

1. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop, characterized in that: It includes a high-rise frame, a smoke collection hood, a dust removal branch pipe and a dust removal main pipe. The smoke collection hood is installed on the top of the high-rise frame. The corresponding area of ​​the smoke collection hood and the top of the high-rise frame is surrounded by steel plates to form a closed collection cavity. A plurality of dust removal branch pipes are evenly distributed on the smoke collection hood along the length direction. The dust removal branch pipes are connected to the dust removal main pipe.

2. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop according to claim 1, characterized in that: The high-rise frame comprises a roof steel structure and exterior walls on both sides, and an interior wall is arranged between the roof steel structure and the converter high-level silo platform.

3. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop according to claim 2, characterized in that: The smoke collecting hood is arranged at the highest point of the roof steel structure.

4. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop according to claim 3, characterized in that: The smoke collecting hood is a single-slope roof structure, and the bottom of the smoke collecting hood is connected to the roof steel structure.

5. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop according to claim 1 or 4, characterized in that: The dust removal main pipe is provided with an electric valve, or the plurality of dust removal branch pipes are respectively provided with electric valves.

6. A dust removal system for the top of a high-rise frame of a converter steelmaking workshop according to claim 4, characterized in that: The lowest side of the smoke collection hood is provided with a through-length gutter.

Images