Blast furnace top distribution chute orientation correcting and positioning device

Abstract

The utility model discloses a blast furnace top material distribution chute orientation correcting and positioning device, which comprises a blast furnace material distributor beta angle gear box provided with a driven gear, an intermediate gear and a follow-up gear, the intermediate gear is respectively meshed with the driven gear and the follow-up gear, and the driven gear is meshed with a material distributor upper gear; the distributor beta angle gear box coaxial car cam is coaxially arranged on the driven gear; the material distributor beta angle zero position proximity switch is arranged at one end, opposite to the driven gear, of the blast furnace material distributor beta angle gear box, and the position of the material distributor beta angle zero position proximity switch corresponds to the direction, facing an iron notch, of the material distribution chute; when the distributor beta-angle gear box coaxial car cam rotates to the distributor beta-angle zero position proximity switch along with the driven gear, the distributor beta-angle zero position proximity switch is triggered, and the distributor beta-angle zero position proximity switch sends a signal to a blast furnace top operation room.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace top equipment, in particular to a blast furnace top material distribution chute orientation calibration and positioning device. Background Art

[0002] Blast furnace production is a continuous and relatively complex process, and the blast furnace top equipment is the key control link of blast furnace charging. The bell-less top distributor can realize circular, spiral, fan-shaped and fixed-point distribution. Among them, the charging system for fan-shaped and fixed-point distribution requires accurate positioning of the distribution chute, which is specifically achieved by accurately corresponding the position of the throat chute to the β angle on the operation screen. The angle display of the distribution chute is realized through the encoder. The long-term cumulative error of the encoder causes the chute zero position to shift. When executing fan-shaped and fixed-point distribution, it cannot be accurately distributed to the corresponding position, resulting in misoperation of the upper adjustment of the blast furnace, causing the blast furnace to be difficult to operate and suspended material accidents. Therefore, a device is needed to position the distribution chute online, abandoning the previous method of positioning by opening the throat manhole after the encoder fails, and positioning the distributor. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a device for calibrating and positioning the orientation of a material distribution chute on a blast furnace roof.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A device for aligning and positioning a blast furnace top material distribution chute, comprising:

[0006] The β-angle gearbox of the blast furnace distributor is provided with a driven gear, an intermediate gear and a follower gear, wherein the intermediate gear is meshed with the driven gear and the follower gear respectively, and the driven gear is meshed with the upper gear of the distributor;

[0007] The β-angle gearbox of the distributor is coaxial with the iron and is coaxially installed on the driven gear;

[0008] The β angle zero position proximity switch of the distributor is arranged on the end of the β angle gear box of the blast furnace distributor opposite to the driven gear, and its position corresponds to the direction of the distribution chute toward the iron mouth;

[0009] Among them, when the coaxial contact iron of the β angle gear box of the feeder rotates with the driven gear to the β angle zero position proximity switch of the feeder, the β angle zero position proximity switch of the feeder is triggered, and the β angle zero position proximity switch of the feeder sends a signal to the blast furnace top operation room.

[0010] The utility model also comprises two distributor beta angle encoders which are respectively arranged on the driven gear and the follower gear rotating shaft and are connected with the PLC of the blast furnace top operating room.

[0011] The distributor β angle zero position proximity switch is installed on the β angle gear box of the blast furnace distributor through a proximity switch bracket.

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

[0013] 1. The utility model solves the problem of accurate sector-shaped and fixed-point material distribution when the chute zero position offset failure is caused by the long-term cumulative error of the β angle encoder of the material distribution device, and finally realizes remote online automatic and regular calibration to maintain the accuracy of the material distribution chute and provide guarantee for accurate sector-shaped and fixed-point material distribution.

[0014] 2. The utility model installs a touch iron and a proximity switch on the β angle detection device of the material distributor to position the material distribution chute on site, and transmits the positioning zero position to the computer screen during operation through the proximity switch and the touch iron, so as to realize regular weekly cleaning operations, change the previous problem of inaccurate sector-shaped and fixed-point material distribution caused by the error of the β angle encoder, and position the material distribution chute online to maintain accuracy, thus providing guarantee for accurate sector-shaped and fixed-point material distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Figure 1 It is the principle diagram of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] like Figure 1 As shown, a device for calibrating and positioning the position of a blast furnace top charging chute comprises: a β-angle gearbox 1 of a blast furnace charging device, which is provided with a driven gear 5, an intermediate gear 7 and a follower gear 8, wherein the intermediate gear 7 is respectively meshed with the driven gear 5 and the follower gear 8, and the driven gear 5 is meshed with the upper gear of the charging device; a coaxial contact iron 3 of the β-angle gearbox of the charging device, which is coaxially installed on the driven gear 5; a β-angle zero position proximity switch 4 of the charging device, which is arranged on the end of the β-angle gearbox 1 of the blast furnace charging device opposite to the driven gear 5, and its position corresponds to the position of the charging chute toward the iron mouth;

[0019] Among them, when the coaxial iron contact 3 of the β angle gear box of the feeder rotates with the driven gear 5 to the β angle zero position proximity switch 4 of the feeder, the β angle zero position proximity switch 4 of the feeder is triggered, and the β angle zero position proximity switch 4 of the feeder sends a signal to the blast furnace top operating room.

[0020] like Figure 1 As shown, the utility model further comprises two distributor β angle encoders 2, which are respectively arranged on the rotating shafts of the driven gear 5 and the follower gear 8, and are connected to the PLC of the blast furnace top operating room.

[0021] like Figure 1 As shown, the distributor β angle zero position proximity switch 4 is installed on the blast furnace distributor β angle gear box 1 through the proximity switch bracket 6.

[0022] When the utility model is in use, the distributor moves, and the distribution chute faces the iron mouth orientation, the upper gear of the distributor drives the driven gear 5 to rotate, and the driven gear 5 drives the follower gear 8 to rotate through the intermediate gear 7. At this time, the rotation amount of the driven gear 5 and the follower gear 8 is transmitted to the PLC of the blast furnace top operating room through two distributor β angle encoders 2. At the same time, the distributor β angle gear box coaxial iron contact 3 rotates with the driven gear 5 to the distributor β angle zero position proximity switch 4, triggering the distributor β angle zero position proximity switch 4, and the distributor β angle zero position proximity switch 4 sends a signal to the blast furnace top operating room. Since the position of the distributor β angle zero position proximity switch 4 is set to the iron mouth orientation, that is, the distribution chute β angle zero position, therefore, at this time, the distribution chute and the iron mouth orientation are positioned relative to each other.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for aligning and positioning the chute of a blast furnace top distribution chute, characterized in that: include: A β-angle gearbox (1) for a blast furnace distributor, comprising a driven gear (5), an intermediate gear (7) and a follower gear (8), wherein the intermediate gear (7) is meshed with the driven gear (5) and the follower gear (8) respectively, and the driven gear (5) is meshed with an upper gear of the distributor; The distributor β angle gear box is coaxial with the iron (3), which is coaxially mounted on the driven gear (5); A β angle zero position proximity switch (4) for the distributor is arranged on the end of the β angle gear box (1) of the blast furnace distributor opposite to the driven gear (5), and its position corresponds to the direction of the distribution chute toward the iron mouth; When the β angle gearbox coaxial contact iron (3) of the distributor rotates with the driven gear (5) to the β angle zero position proximity switch (4) of the distributor, the β angle zero position proximity switch (4) of the distributor is triggered, and the β angle zero position proximity switch (4) of the distributor sends a signal to the blast furnace top operating room.

2. A device for aligning and positioning the blast furnace top material distribution chute according to claim 1, characterized in that: It also includes two distributor β angle encoders (2), which are respectively arranged on the rotating shafts of the driven gear (5) and the follower gear (8), and are connected to the PLC of the blast furnace top operating room.

3. The device for aligning and positioning the blast furnace top material distribution chute according to claim 1, characterized in that: The distributor β angle zero position proximity switch (4) is mounted on the blast furnace distributor β angle gear box (1) via a proximity switch bracket (6).

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