Inlet partition device of converter electrostatic dust collector

Abstract

The utility model relates to a converter electrostatic dust collector inlet partition device, and belongs to the technical field of converter electrostatic dust collector inlet partition devices in the metallurgical industry. According to the technical scheme, the device comprises a baffle (1), a rotating connecting rod (3), a shell (4), rotating shafts (7) and a driving mechanism (8), the shell (4) is of a circular structure matched with an inlet of the electrostatic dust collector, the baffle (1) is a circular baffle formed by combining three plates and matched with the inner diameter of the shell (4), the two sides of each plate are rotationally connected with the shell (4) through the rotating shafts (7) respectively, and the rotating connecting rod (3) is connected with the shell (4) through the rotating shafts (7). Wherein one plate is driven by a driving mechanism (8), and two adjacent plates are connected together through a rotary connecting rod (3); and a limiting stop block (6) matched with the baffle (1) is arranged on the shell (4). The device has the beneficial effects that when the electrostatic dust collector is maintained, high-temperature gas, smoke dust and toxic and harmful gases such as CO, N2 and the like generated by the converter can be prevented from entering the electrostatic dust collector.

Description

Technical Field

[0001] The utility model relates to an inlet partition device for an electrostatic precipitator of a converter, and belongs to the technical field of inlet partition devices for electrostatic precipitators of a converter in the metallurgical industry. Background Art

[0002] The electrostatic precipitator is an important dust removal equipment in the primary dust removal system of the converter. Its internal structure needs regular maintenance. However, the pipelines from the converter to the flue, to the evaporative cooler, and then to the electrostatic precipitator are interconnected, resulting in high-temperature gases, smoke, CO, N2 and other toxic and harmful gases as high as 240-280°C directly passing into the electrostatic precipitator after steelmaking in the converter. Therefore, the internal temperature of the electrostatic precipitator cools down slowly during maintenance, and there are certain safety hazards for maintenance personnel during the maintenance process.

[0003] In the current converter primary dust removal system, the following methods are usually used to cool the electrostatic precipitator: the flue is depressurized and water is released to reduce the heat source, and the 16 DN600 manholes on the evaporative cooler barrel wall and the 5 DN600 manholes on the electrostatic precipitator body are opened, and a DN1200 large manhole on the pipe at the entrance of the electrostatic precipitator is opened. At the same time, the ID fan is operated at a low speed to allow low-temperature gas to enter the electrostatic precipitator. When the internal temperature of the electrostatic precipitator drops to 50°C, personnel can enter for maintenance. The cooling time takes 6-7 hours, and the actual maintenance time is 1-2 hours, resulting in a waste of time, and it is impossible to prevent toxic and harmful gases such as CO and N2 generated by the converter from entering the electrostatic precipitator. However, some partition devices are too bulky, requiring a bracket to be built at the bottom, and occupying a large space, which is difficult to replace and expensive.

[0004] Based on the above reasons, a converter electrostatic precipitator inlet partition device is developed to overcome the technical problems existing in the above-mentioned prior art, which is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] The purpose of the utility model is to provide an inlet partition device for a converter electrostatic precipitator, which can prevent high-temperature gas, smoke and toxic and harmful gases such as CO and N2 generated by the converter from entering the electrostatic precipitator when the electrostatic precipitator is maintained, thereby solving the problems existing in the background technology.

[0006] The technical solution of the utility model is:

[0007] A converter electrostatic precipitator inlet partition device comprises a baffle, a rotating connecting rod, a shell, a rotating shaft and a driving mechanism, wherein the shell is a circular structure matching the electrostatic precipitator inlet, the baffle is a circular baffle composed of three plates and matching the inner diameter of the shell, the two sides of each plate are rotatably connected to the shell through a rotating shaft, one of the plates is driven by the driving mechanism, and two adjacent plates are connected together through a rotating connecting rod.

[0008] The shell body is provided with a limit stopper matched with the baffle.

[0009] The baffle is a circular baffle composed of a middle plate and two side plates and matched with the inner diameter of the shell, wherein one side plate is driven by a driving mechanism, and the two side plates are connected to the middle plate through rotating connecting rods.

[0010] A sleeve matched with the rotating shaft is fixed on the shell.

[0011] The shell is provided with a flange.

[0012] The beneficial effects of the utility model are:

[0013] (1) The utility model has a simple structure and is easy to operate. It does not occupy any space other than the pipeline. When the electrostatic precipitator is maintained, the medium is separated by a baffle, so that the high-temperature gas and smoke generated by the converter and toxic and harmful gases such as CO and N2 cannot reach the electrostatic precipitator, thereby reducing the safety hazards of maintenance personnel during the maintenance process;

[0014] (2) The internal cooling time of the electrostatic precipitator during maintenance is reduced from 6 to 7 hours to 2 to 3 hours, thus reducing the maintenance time;

[0015] (3) It is no longer necessary to drain the flue to relieve pressure, and the manhole on the wall of the evaporative cooling barrel is opened, which reduces the impact on other equipment and reduces the use of manpower and material resources;

[0016] (4) The structure is simple and easy to disassemble and assemble, which reduces the construction and spare parts costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front schematic diagram of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram after the middle baffle is rotated 90 degrees;

[0019] Figure 3 for Figure 2 Schematic diagram of the reverse side;

[0020] Figure 4 This is a schematic diagram of the assembly of the sleeve, housing, flange and stopper of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection between the baffle and the rotating shaft of the utility model;

[0022] Figure 6 It is a cross-sectional view of the rotary connecting rod of the utility model;

[0023] In the figure: 1, baffle, 2, sleeve, 3, rotating connecting rod, 4, housing, 5, flange, 6, stopper, 7, rotating shaft, 8, driving mechanism; DETAILED DESCRIPTION

[0024] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0025] See attached Figure 1-6 A converter electrostatic precipitator inlet partition device comprises a baffle 1, a rotating connecting rod 3, a shell 4, a rotating shaft 7 and a driving mechanism 8. The shell 4 is a circular structure matching the electrostatic precipitator inlet. The baffle 1 is a circular baffle composed of three plates and matching the inner diameter of the shell 4. The two sides of each plate are rotatably connected to the shell 4 through the rotating shaft 7, one of the plates is driven by the driving mechanism 8, and the two adjacent plates are connected together through the rotating connecting rod 3.

[0026] In this embodiment, refer to the attached Figure 1-6 The converter electrostatic precipitator inlet partition device comprises a baffle 1, a sleeve 2, a rotating connecting rod 3, a shell 4, a rotating shaft 7 and a driving mechanism 8, wherein:

[0027] The baffle 1 is composed of a middle plate and two side plates, and its size matches the inner diameter of the housing 4. One of the side plates is driven by a driving mechanism 8, and the two side plates are connected to the middle plate through a rotating connecting rod 3.

[0028] The length of the rotating connecting rod 3 is equal to the vertical distance between the middle plate and the two side plates when they are opened. Figure 1 As shown, rotating the connecting rod 3 can keep the middle plate and the two side plates at the same angle when rotating;

[0029] The sleeve 2 is fixed on the housing 4, and the shaft 7 is inserted into the sleeves 2 at both ends, and the shaft 7 can rotate freely. There are grooves in the sleeve 2 and on the shaft 7, and a torsion spring is placed on the groove. When the baffle 1 is in the same direction as the pipeline, the torsion spring is in a natural state;

[0030] The stopper 6 is fixed on the housing 4, and its position enables the baffle 1 to rotate within a range of 90° from horizontal to vertical, and the stopper 6 does not affect the mutual closure between the three baffles.

[0031] When in use, the device is installed at the entrance of the electrostatic precipitator. When the electrostatic precipitator is maintained, the baffle 1 is rotated by the driving mechanism 8 to put the baffle 1 in a closed state, so that the high-temperature gas and smoke generated by the converter and toxic and harmful gases such as CO and N2 cannot reach the electrostatic precipitator, thereby reducing the safety hazards of maintenance personnel during the maintenance process; when the device is not in use, the baffle 1 is restored to a position horizontal to the pipeline, that is, an open state, under the action of the torsion spring between the sleeve 2 and the rotating shaft 7; and when the internal components are damaged due to long-term use, they can be disassembled and replaced separately without replacing the entire device.

Claims

1. A converter electrostatic precipitator inlet partition device, characterized in that: The invention comprises a baffle (1), a rotating connecting rod (3), a shell (4), a rotating shaft (7) and a driving mechanism (8); the shell (4) is a circular structure matching the inlet of an electrostatic precipitator; the baffle (1) is a circular baffle composed of three plates and matching the inner diameter of the shell (4); both sides of each plate are rotatably connected to the shell (4) via the rotating shaft (7); one of the plates is driven by the driving mechanism (8); and two adjacent plates are connected together via the rotating connecting rod (3).

2. The converter electrostatic precipitator inlet partition device according to claim 1, characterized in that: The housing (4) is provided with a limit stopper (6) which matches the baffle (1).

3. The converter electrostatic precipitator inlet partition device according to claim 1, characterized in that: The baffle (1) is a circular baffle composed of a middle plate and two side plates and matching the inner diameter of the shell (4), wherein one side plate is driven by a driving mechanism (8), and the two side plates are connected to the middle plate via rotating connecting rods (3).

4. The converter electrostatic precipitator inlet partition device according to claim 1, characterized in that: A sleeve (2) matching the rotating shaft (7) is fixed on the housing (4).

5. The converter electrostatic precipitator inlet partition device according to claim 1, characterized in that: The housing (4) is provided with a flange (5).

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