Method for using adjustable signal feedback connecting rod of blast furnace axial flow blower

Abstract

The present invention discloses an adjustable signal feedback connecting rod for a blast furnace axial flow blower, comprising a buckle groove, a transmitter transmission shaft interface and a fixed pin hole, wherein the buckle groove is arranged at the top of the adjustable signal feedback connecting rod, a plurality of transmitter transmission shaft interfaces are arranged below the buckle groove, and are vertically evenly spaced and distributed on the adjustable signal feedback connecting rod, and a plurality of fixed pin holes are arranged on the side of the adjustable signal feedback connecting rod and are connected to the transmitter transmission shaft interface. By using the adjustable signal feedback connecting rod of the present invention, the stationary blade feedback signal can be increased or decreased according to actual needs without replacing components such as the transmitter, thereby realizing the setting of the stationary blade feedback signal.

Description

Technical Field

[0001] The invention belongs to the technical field of axial flow blowers, and more specifically relates to an adjustable signal feedback connecting rod of a blast furnace axial flow blower and a use method thereof. Background Art

[0002] When the axial flow blower unit of the blast furnace is in operation, the air volume needs to be adjusted at any time according to the needs of the blast furnace. During the adjustment, the oil motor pushes the stator blades to move, and the stator blades change their angles, while changing the flow space and compression ratio inside the blower to achieve the purpose of adjusting the air volume. When the stator blade angle is adjusted by the oil motor, the oil motor moves back and forth horizontally, and the displacement scale of the oil motor drives the feedback signal connecting rod to swing. The lower end of the connecting rod is connected to the transmitter drive shaft through an interface. The swing of the connecting rod will drive the transmitter drive shaft to rotate a certain angle. The size of the rotation angle of the drive shaft forms a stator blade feedback signal in the transmitter. The fan control system controls the production and operation of the blower based on the stator blade feedback signal.

[0003] In the prior art, when the blower stator system needs to be adjusted, only the oil motor and the electro-hydraulic converter can be adjusted; there is no adjustment means for the control and adjustment of the stator feedback signal, and the stator feedback signal cannot be adjusted. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an adjustable signal feedback connecting rod for a blast furnace axial flow blower, comprising a snap groove, a transmitter drive shaft interface and a fixing pin hole, the snap groove being arranged at the top of the adjustable signal feedback connecting rod, a plurality of the transmitter drive shaft interfaces being arranged below the snap groove, and being vertically evenly spaced on the adjustable signal feedback connecting rod, a plurality of the fixing pin holes being arranged on the side of the adjustable signal feedback connecting rod and being connected to the transmitter drive shaft interface.

[0005] Preferably, in the above-mentioned adjustable signal feedback connecting rod of the blast furnace axial flow blower, the position of the fixing pin hole corresponds one-to-one to the position of the transmitter drive shaft interface, and the number of the fixing pin holes is equal to the number of the transmitter drive shaft interfaces.

[0006] Preferably, in the above-mentioned adjustable signal feedback connecting rod of the blast furnace axial flow blower, the number of the transmitter drive shaft interfaces is 5, and the number of the fixing pin holes is 5 accordingly.

[0007] Preferably, in the above-mentioned adjustable signal feedback connecting rod of the blast furnace axial flow blower, the oil motor displacement scale of the blast furnace axial flow blower unit is inserted into the said buckle groove, and the transmitter drive shaft of the blast furnace axial flow blower unit is inserted into the said fixing pin hole and fixed by the positioning pin.

[0008] In another aspect of the present invention, a method for using an adjustable signal feedback connecting rod of a blast furnace axial flow blower is also provided, wherein the adjustable signal feedback connecting rod of the blast furnace axial flow blower includes a buckle groove, a transmitter drive shaft interface and a fixed pin hole, the buckle groove is arranged at the top of the adjustable signal feedback connecting rod, a plurality of the transmitter drive shaft interfaces are arranged below the buckle groove, and are vertically evenly spaced and distributed on the adjustable signal feedback connecting rod, a plurality of the fixed pin holes are arranged on the side of the adjustable signal feedback connecting rod and are connected to the transmitter drive shaft interface, the position of the fixed pin hole corresponds to the position of the transmitter drive shaft interface one by one, and the number of the fixed pin holes is equal to the number of the transmitter drive shaft interfaces, and the method for using the adjustable signal feedback connecting rod of the blast furnace axial flow blower includes:

[0009] In normal use, the displacement scale of the oil motor of the blast furnace axial flow blower unit is inserted into the buckle groove, and the transmitter drive shaft of the blast furnace axial flow blower unit is inserted into the fixed pin hole and fixed by the positioning pin. When the air volume needs to be adjusted according to the requirements of the blast furnace, the oil motor moves back and forth horizontally, and the displacement scale of the oil motor drives the adjustable signal feedback connecting rod to swing. The swing of the adjustable signal feedback connecting rod drives the transmitter drive shaft to rotate, thereby changing the angle of the stationary blade. The size of the rotation angle of the transmitter drive shaft forms a stationary blade feedback signal in the transmitter, and the fan control system adjusts the air volume of the blower based on the stationary blade feedback signal.

[0010] When it is necessary to adjust the stationary blade feedback signal, different transmitter drive shaft interfaces are selected to install the transmitter drive shaft according to the stationary blade feedback signal adjustment requirements, so as to adjust the effective working length of the adjustable signal feedback connecting rod. Therefore, when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft changes, thereby amplifying or reducing the stationary blade feedback signal to achieve the adjustment of the stationary blade feedback signal. Among them, if it is necessary to increase the stationary blade feedback signal, the transmitter drive shaft interface located on the upper part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby The effective working length of the adjustable signal feedback connecting rod is shortened, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft increases, and the stationary blade feedback signal is correspondingly increased; if the stationary blade feedback signal needs to be reduced, the transmitter drive shaft interface located at the lower part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby lengthening the effective working length of the adjustable signal feedback connecting rod, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft decreases, and the stationary blade feedback signal is correspondingly reduced.

[0011] The adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention and the use method thereof can be applied to various large-scale electric blowers and pneumatic blowers supporting blast furnace smelting. According to the setting requirements of the stator blade feedback signal, a reasonable transmitter drive shaft interface is selected and the transmitter drive shaft is installed in the selected transmitter drive shaft interface, and the transmitter drive shaft is fixed by a locating pin, thereby realizing the length adjustment of the feedback connecting rod and correspondingly increasing or decreasing the rotation angle of the transmitter drive shaft, thereby increasing or decreasing the stator blade feedback signal according to actual needs without replacing components such as the transmitter, thereby realizing the setting of the stator blade feedback signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a front view of the adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention.

[0014] Figure 2 It is a front sectional view of an adjustable signal feedback connecting rod of a blast furnace axial flow blower of the present invention.

[0015] Figure 3 The invention discloses a side view of an adjustable signal feedback connecting rod of a blast furnace axial flow blower.

[0016] Figure 4 The invention discloses a side cross-sectional view of an adjustable signal feedback connecting rod of a blast furnace axial flow blower.

[0017] Explanation of the reference numerals: 1- snap groove, 2- transmitter drive shaft interface, 3- fixing pin hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention comprises a buckle groove 1, a transmitter drive shaft interface 2 and a fixing pin hole 3. The buckle groove 1 is arranged at the top of the adjustable signal feedback connecting rod, and the displacement scale of the oil motor can be inserted into the buckle groove 1 to be connected to each other. A plurality of transmitter drive shaft interfaces 2 are arranged below the buckle groove 1 and are vertically evenly spaced on the adjustable signal feedback connecting rod. A plurality of fixing pin holes 3 are arranged on the side of the adjustable signal feedback connecting rod and are connected to the transmitter drive shaft interface 2. The transmitter drive shaft can be inserted into any one of the plurality of fixing pin holes 3, and the positioning pin can be inserted into the fixing pin hole 3 to fix the transmitter drive shaft in the transmitter drive shaft interface 2.

[0020] The positions of the fixing pin holes 3 correspond to the positions of the transmitter transmission shaft interfaces 2 one by one, and the number of the fixing pin holes 3 is equal to the number of the transmitter transmission shaft interfaces 2 .

[0021] Preferably, the number of the transmitter transmission shaft interfaces 2 is 5, and the number of the fixing pin holes 3 is 5 accordingly.

[0022] The method for using the adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention is as follows:

[0023] In normal use, the displacement scale of the oil motor is inserted into the buckle groove 1 to connect with each other, the transmitter drive shaft is inserted into the transmitter drive shaft interface 2, and the fixing pin is inserted into the fixing pin hole 3 to fix the transmitter drive shaft in the transmitter drive shaft interface 2. When the air volume needs to be adjusted according to the requirements of the blast furnace, the oil motor moves back and forth horizontally, and the displacement scale of the oil motor drives the adjustable signal feedback connecting rod to swing. The swing of the adjustable signal feedback connecting rod will drive the transmitter drive shaft to rotate a certain angle, change the angle of the stator blade, and the size of the rotation angle of the transmitter drive shaft forms a stator blade feedback signal in the transmitter. The fan control system adjusts the air volume of the blower based on the stator blade feedback signal;

[0024] When it is necessary to adjust the stator blade feedback signal, different transmitter drive shaft interfaces 2 are selected to install the transmitter drive shaft according to the stator blade feedback signal adjustment requirements, thereby adjusting the effective working length of the adjustable signal feedback connecting rod. When the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft changes, thereby amplifying or reducing the stator blade feedback signal, thereby achieving the adjustment of the stator blade feedback signal. For example, if it is necessary to increase the stator blade feedback signal, the transmitter drive shaft interface 2 located at the upper part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby shortening the effective working length of the adjustable signal feedback connecting rod, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft increases, and the stator blade feedback signal is correspondingly increased; if it is necessary to reduce the stator blade feedback signal, the transmitter drive shaft interface 2 located at the lower part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby lengthening the effective working length of the adjustable signal feedback connecting rod, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft decreases, and the stator blade feedback signal is correspondingly reduced.

[0025] The adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention and the method of using the same can be applied to various large electric blowers and steam-driven blowers supporting blast furnace smelting. According to the setting requirements of the stationary blade feedback signal, a reasonable transmitter transmission shaft interface can be selected and the transmitter transmission shaft can be installed in the selected transmitter transmission shaft interface, and the transmitter transmission shaft can be fixed by a locating pin, thereby realizing the adjustment of the length of the feedback connecting rod, and correspondingly increasing or decreasing the rotation angle of the transmitter transmission shaft, thereby increasing or decreasing the stationary blade feedback signal, and realizing the setting of the stationary blade feedback signal. Therefore, by using the adjustable signal feedback connecting rod of the blast furnace axial flow blower of the present invention, there is no need to replace components such as the transmitter, and the installation can be adjusted at any time according to actual needs. It is flexible and easy to use, and the setting of the stationary blade feedback signal can be realized.

[0026] It should be noted that, in this article, the term "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such article or device. At the same time, the term "connection" and the like used in this article should be understood in a broad sense, and can be a fixed connection or a detachable connection, and can be directly connected or indirectly connected through an intermediate component. In addition, the terms "front", "back", "left", "right", "up", "down", "inside", "outside", "top", "bottom", etc. in this article are all referenced to the placement state shown in the accompanying drawings.

[0027] It should also be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the present invention.

Claims

1. A method for using an adjustable signal feedback connecting rod of a blast furnace axial flow blower, wherein the adjustable signal feedback connecting rod of the blast furnace axial flow blower comprises a buckle groove, a transmitter drive shaft interface and a fixed pin hole, the buckle groove is arranged at the top of the adjustable signal feedback connecting rod, a plurality of the transmitter drive shaft interfaces are arranged below the buckle groove, and are vertically evenly spaced and distributed on the adjustable signal feedback connecting rod, a plurality of the fixed pin holes are arranged on the side of the adjustable signal feedback connecting rod and are connected to the transmitter drive shaft interface, the position of the fixed pin hole corresponds to the position of the transmitter drive shaft interface one by one, and the number of the fixed pin holes is equal to the number of the transmitter drive shaft interfaces, characterized in that The method for using the adjustable signal feedback connecting rod of the blast furnace axial flow blower comprises: In normal use, the displacement scale of the oil motor of the blast furnace axial flow blower unit is inserted into the buckle groove, and the transmitter drive shaft of the blast furnace axial flow blower unit is inserted into the fixed pin hole and fixed by the positioning pin. When the air volume needs to be adjusted according to the requirements of the blast furnace, the oil motor moves back and forth horizontally, and the displacement scale of the oil motor drives the adjustable signal feedback connecting rod to swing. The swing of the adjustable signal feedback connecting rod drives the transmitter drive shaft to rotate, thereby changing the angle of the stationary blade. The size of the rotation angle of the transmitter drive shaft forms a stationary blade feedback signal in the transmitter, and the fan control system adjusts the air volume of the blower based on the stationary blade feedback signal. When it is necessary to adjust the stationary blade feedback signal, different transmitter drive shaft interfaces are selected to install the transmitter drive shaft according to the stationary blade feedback signal adjustment requirements, so as to adjust the effective working length of the adjustable signal feedback connecting rod. Therefore, when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft changes, thereby amplifying or reducing the stationary blade feedback signal to achieve the adjustment of the stationary blade feedback signal. Among them, if it is necessary to increase the stationary blade feedback signal, the transmitter drive shaft interface located on the upper part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby The effective working length of the adjustable signal feedback connecting rod is shortened, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft increases, and the stationary blade feedback signal is correspondingly increased; if the stationary blade feedback signal needs to be reduced, the transmitter drive shaft interface located at the lower part of the adjustable signal feedback connecting rod is selected to install the fixed transmitter drive shaft, thereby lengthening the effective working length of the adjustable signal feedback connecting rod, so that when the swing amplitude of the adjustable signal feedback connecting rod remains unchanged, the rotation angle of the transmitter drive shaft decreases, and the stationary blade feedback signal is correspondingly reduced.

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