Auxiliary dam support device for a smelting furnace

Abstract

The utility model discloses a kind of auxiliary smoke gate supporting devices of smelting furnace, including flue, auxiliary smoke gate and drive cylinder, flange is provided outside the flue, support plate is provided at the left side of flange, positioning plate is provided at the left end of support plate, drive cylinder is provided at the left side of positioning plate, the push rod of drive cylinder is sequentially penetrated positioning plate, flange, and extend into flue, auxiliary smoke gate is provided at the right end of drive cylinder push rod, support bearing is provided at the middle of drive cylinder. The utility model can reduce the friction between transmission shaft and steel structure by setting support bearing on the push rod of drive cylinder, make smoke gate rotate more smoothly, effectively solve the transmission shaft wear, deformation and jamming caused by friction in prior art, realize transmission shaft lubrication, reduce maintenance cost, prolong the service life of equipment, improve the operation efficiency and reliability of smelting furnace auxiliary smoke gate device.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for an auxiliary smoke damper, and more particularly to a support device for an auxiliary smoke damper of a smelting furnace, belonging to the technical field of industrial furnace equipment. Background Technology

[0002] During the heating process of a smelting furnace, the auxiliary smoke damper needs to be frequently switched on and off to control the pressure inside the furnace. However, existing auxiliary smoke dampers have revealed some significant problems in actual operation: ① The transmission of the auxiliary smoke damper mainly relies on a drive shaft, which has direct friction with the steel structural components. This long-term friction not only accelerates the wear of the drive shaft but also significantly reduces its service life; ② During each switching operation, the drive shaft is prone to deformation due to continuous friction. This deformation further exacerbates equipment malfunctions, especially frequent jamming, which seriously affects the normal operation and reliability of the auxiliary smoke damper. These problems not only increase equipment maintenance costs but also reduce the operating efficiency of the smelting furnace. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary smoke damper support device for a smelting furnace. By setting a support bearing on the push rod of the drive cylinder, the wear of the transmission shaft is reduced, the operational stability and service life of the equipment are improved, and the maintenance cost is reduced.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] A supporting device for an auxiliary smoke damper in a smelting furnace includes a flue, an auxiliary smoke damper, and a driving cylinder. A flange is provided on the outside of the flue, a support plate is provided on the left side of the flange, a positioning plate is provided on the left end of the support plate, and a driving cylinder is provided on the left side of the positioning plate. The push rod of the driving cylinder passes through the positioning plate and the flange in sequence and extends into the flue. An auxiliary smoke damper is provided on the right end of the push rod of the driving cylinder, and a supporting bearing is provided in the middle of the driving cylinder.

[0006] There are two support plates, which are respectively set at the upper and lower parts between the positioning plate and the flange.

[0007] The support bearing is slidably connected to the push rod of the drive cylinder and is fixedly connected to the support plate by bolts.

[0008] The auxiliary smoke damper is located inside the smoke duct.

[0009] The drive cylinder is connected to the controller via wiring.

[0010] The positive and beneficial effects of this utility model are:

[0011] 1. This utility model provides a support bearing on the push rod of the drive cylinder, and the support bearing is bolted to the positioning plate, which makes the opening and closing action of the auxiliary smoke damper smoother, reduces jamming, improves the operating efficiency of the equipment, significantly reduces the direct friction between the drive shaft and the steel structure, and extends the service life of the drive shaft.

[0012] 2. This utility model reduces the maintenance frequency and lowers the maintenance cost of the equipment by setting a support bearing on the push rod of the drive cylinder, and the support bearing has its own lubrication system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a diagram showing the usage state of this utility model;

[0015] Among them: 1- flue, 2- auxiliary smoke damper, 3- flange, 4- support plate, 5- positioning plate, 6- drive cylinder, 7- support bearing. Detailed Implementation

[0016] The present invention will be further explained and described below with reference to the accompanying drawings:

[0017] See the example. Figure 1 Figure - shows an auxiliary smoke damper support device for a smelting furnace, including a flue 1, an auxiliary smoke damper 2, and a drive cylinder 6. A flange 3 is provided outside the flue 1, a support plate 4 is provided on the left side of the flange 3, a positioning plate 5 is provided at the left end of the support plate 4, and a drive cylinder 6 is provided on the left side of the positioning plate 5. The push rod of the drive cylinder 6 passes through the positioning plate 5 and the flange 3 in sequence and extends into the flue 1. The auxiliary smoke damper 2 is provided at the right end of the push rod of the drive cylinder 6, and a support bearing 7 is provided in the middle of the drive cylinder 6.

[0018] In the above description, the push rod of the drive cylinder is slidably connected to the flange.

[0019] There are two support plates 4, which are respectively set at the upper and lower parts between the positioning plate 5 and the flange 3.

[0020] The support bearing 7 is fixedly connected to the support plate 4 by bolts.

[0021] The auxiliary smoke damper 2 is located inside the smoke duct 1.

[0022] The drive cylinder 6 is connected to the controller via wiring.

[0023] In the above description, the drive cylinder is fixedly connected to the positioning plate by bolts.

[0024] In the above description, there is an opening on one side of the flue, and a flange is bolted to the opening. The flange has a hole for the horizontal movement of the cylinder push rod.

[0025] In the above description, the support bearing is concentric with the cylinder push rod, and the inner diameter of the support bearing matches the outer diameter of the cylinder push rod.

[0026] In the above description, the bolts used to fix the support bearing consist of an M10 screw and an M10 nut.

[0027] Working principle:

[0028] Start-up process: When the smelting furnace needs to adjust the furnace pressure, the drive cylinder 6 receives a control signal and starts working; the push rod of the drive cylinder 6 extends and retracts under the action of air pressure. The direction of movement of the push rod is horizontal, moving from the left side to the right of the drive cylinder 6, or retracting from the right side to the left; when the push rod of the drive cylinder 6 retracts to the left, the auxiliary smoke damper 2 is pulled back, the passage in the flue 1 is opened, and the flue gas can be discharged smoothly; when the push rod of the drive cylinder 6 extends to the right, the auxiliary smoke damper 2 is pushed into the flue 1, closing the passage of the flue 1, thereby controlling the pressure in the furnace.

[0029] During operation, the push rod of the drive cylinder contacts the support plate through the support bearing. The support bearing, through its rolling friction characteristics, significantly reduces the direct friction between the push rod and the support plate. Due to the reduced friction, the wear of the push rod and the support plate is greatly reduced, thereby extending the service life of the entire device. The support bearing has its own lubrication system, ensuring that it maintains good lubrication during frequent operation, further reducing wear.

[0030] This invention reduces friction between the drive shaft and the steel structure by installing a support bearing on the push rod of the drive cylinder, making the smoke damper rotate more smoothly. It effectively solves the problems of wear, deformation, and jamming of the drive shaft caused by friction in the prior art, realizes lubrication of the drive shaft, reduces maintenance costs, extends the service life of the equipment, and improves the operating efficiency and reliability of the auxiliary smoke damper device for smelting furnaces.

Claims

1. A support device for an auxiliary smoke damper in a smelting furnace, comprising a flue (1), an auxiliary smoke damper (2), and a drive cylinder (6), characterized in that: A flange (3) is provided on the outside of the flue (1). A support plate (4) is provided on the left side of the flange (3). A positioning plate (5) is provided on the left end of the support plate (4). A driving cylinder (6) is provided on the left side of the positioning plate (5). The push rod of the driving cylinder (6) passes through the positioning plate (5) and the flange (3) in sequence and extends into the flue (1). An auxiliary smoke damper (2) is provided on the right end of the push rod of the driving cylinder (6). A support bearing (7) is provided in the middle of the driving cylinder (6).

2. The auxiliary smoke damper support device for a smelting furnace according to claim 1, characterized in that: There are two support plates (4), which are respectively set at the upper and lower parts between the positioning plate (5) and the flange (3).

3. The auxiliary smoke damper support device for a smelting furnace according to claim 1, characterized in that: The support bearing (7) is fixedly connected to the support plate (4) by bolts.

4. The auxiliary smoke damper support device for a smelting furnace according to claim 2, characterized in that: The auxiliary smoke damper (2) is located inside the flue (1).

5. The auxiliary smoke damper support device for a smelting furnace according to claim 1, characterized in that: The drive cylinder (6) is connected to the controller via a circuit.

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