CN217922168U

CN217922168U - Material flow regulating valve and blast furnace iron-making equipment thereof

Info

Publication number: CN217922168U
Application number: CN202222021548.7U
Authority: CN
Inventors: 许振东; 魏欢
Original assignee: Beijing Shengding Weiye Metallurgical Equipment Technology Co ltd
Current assignee: Beijing Shengding Weiye Metallurgical Equipment Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-29
Anticipated expiration: 2032-08-02

Abstract

The utility model relates to a material flow regulating valve and blast furnace ironmaking equipment thereof, which comprise a valve box body, a blanking bush, a valve clack assembly and a driving mechanism; the valve box body is a machine body of the material flow adjusting valve; the blanking lining bears the abrasion and impact of materials, the section of an outlet of the blanking lining is a regular hexagon, and the outlet and the cutting edge of the valve clack assembly form a discharge hole which is similar to a regular polygon; the valve clack assembly mainly comprises a left valve clack assembly and a right valve clack assembly, the left valve clack assembly and the right valve clack assembly are symmetrical in structure, are flush and split left and right, and a valve clack cutting edge is provided with a high-wear-resistance material; the driving mechanism is provided with two coaxial rotating output shafts, namely an outer shaft and an inner shaft, the outer shaft and the inner shaft are driven by a driving motor or a driving hydraulic cylinder, the outer shaft and the inner shaft are connected with the driving motor or the driving hydraulic cylinder through a coaxial forward and reverse rotating connecting mechanism, the rotating speeds of the two shafts are the same, the rotating directions of the two shafts are opposite, and the valve clack assembly is driven to be opened and closed.

Description

Material flow regulating valve and blast furnace iron-making equipment thereof

Technical Field

The utility model belongs to the technical field of metallurgical equipment, a material flow regulating valve and blast furnace ironmaking equipment thereof are related to.

Background

The material flow regulating valve is very important equipment used for modern blast furnace ironmaking, can accurately control the opening angle of the valve flap, further control the flow of materials passing through the discharge hole, and meet the requirement of accurate charging of the bell-less top of the blast furnace. After the valve clack is opened to a certain size, the cutting edge of the valve clack and the outlet of the blanking lining sleeve act together to form a discharge hole, and whether the discharge hole is symmetrical relative to the center line of the blast furnace or not and whether the shape is approximate to a regular polygon or a circle are important factors influencing material segregation.

There is a material flow governing valve commonly used in the existing market, and its main structural style is: the valve clack is formed by superposing two partial spheres with different sizes up and down, the section of the outlet of the blanking lining is circular, and the valve clack is controlled to be opened towards two sides by adopting a hydraulic cylinder to drive a forward and reverse four-bar linkage mechanism.

The casting difficulty of part spherical valve clack is relatively great, and manufacturing cost is high and the size is difficult to guarantee. In the actual manufacturing process, the clearance between the upper and lower superimposed valve flaps cannot be ensured, so that the situation of material clamping between the superimposed valve flaps in the operation process of the equipment is caused.

The characteristics of the forward and reverse four-bar linkage mechanism determine that the cutting edges of the two valve clacks are symmetrical relative to the center line of the blast furnace only at a certain specific angle, and if the deviation between the actual use angle and the design angle is large, the material can be deflected to one side.

Under a common opening angle, the shape of a discharge port formed by the outlet of the circular discharging bushing and the cutting edge of the linear valve clack has a larger difference with a regular polygon.

SUMMERY OF THE UTILITY MODEL

Above-mentioned technical shortcoming to this kind of material flow governing valve, the utility model discloses the technical problem that will solve: the valve clack assembly structure which is easy to manufacture, easy to ensure the size and relatively low in cost is designed to replace a spherical valve clack; the material clamping phenomenon in the running process of the equipment is avoided; designing a new driving mechanism to ensure that any angle of the cutting edges of the two valve clacks in the opening interval is symmetrical relative to the center line of the blast furnace; the shape of the cross section of the outlet of the blanking lining is changed, so that the shape of the discharge port is approximate to a regular polygon, and the material falls in the middle. In order to achieve the purpose, the technical scheme is as follows:

the utility model provides a material flow control valve, includes valve box body, unloading bush, valve clack subassembly, actuating mechanism, characterized in that: the valve box body is a body of the material flow adjusting valve; the section of an outlet of the blanking lining is a regular hexagon, and the blanking lining and the cutting edge of the valve clack assembly form a discharge hole which is approximate to a regular polygon; the valve clack assembly comprises a left valve clack assembly and a right valve clack assembly, the left valve clack assembly and the right valve clack assembly are symmetrical in structure and are in left-right flush split; the driving mechanism is provided with two rotating output shafts which are coaxial, the rotating speeds of the two shafts are the same, the rotating directions of the two shafts are opposite, and the valve clacks are driven to be opened and closed.

Preferably, the following components are used: the unloading bush is provided with: a cone section and a cylinder section; the conical cylinder section is used for collecting materials, the cylindrical section is used for further guiding the materials, the materials are not dispersed when flowing, and the hexagonal material guiding pipe is arranged inside the cylindrical section, so that a hexagonal outlet is formed.

Preferably: the unloading bush is provided with: a cone section and a cylinder section; the conical cylinder section is used for collecting materials, the cylindrical section is used for further guiding the materials, the materials are not dispersed when flowing, and the hexagonal material guiding pipe is arranged inside the cylindrical section, so that a hexagonal outlet is formed.

Preferably: the valve clack assembly comprises a left valve clack assembly and a right valve clack assembly, the left valve clack assembly and the right valve clack assembly are symmetrical in structure and are flush and split left and right, and the left valve clack assembly comprises a left wear-resistant lining plate, a left steel shell, a left high wear-resistant cutting edge and a left swing arm; the right valve clack assembly comprises a right wear-resistant lining plate, a right steel shell, a right high wear-resistant cutting edge and a right swing arm; the left wear-resistant lining plate, the right wear-resistant lining plate, the left steel shell, the right steel shell, the left high wear-resistant cutting edge and the right high wear-resistant cutting edge are partially cylindrical, and the upper surface of the left steel shell is attached to the lower surfaces of the left wear-resistant lining plate and the left high wear-resistant cutting edge and fixedly connected in a bolt connection or welding mode; the upper surface of the right steel shell is attached to the lower surfaces of the right wear-resistant lining plate and the right high wear-resistant cutting edge and fixedly connected by adopting a bolt connection or welding mode; the left swing arm and the right swing arm are respectively used as bearing substrates of the left wear-resistant lining plate, the left steel shell, the left high wear-resistant cutting edge, the right wear-resistant lining plate, the right steel shell and the right high wear-resistant cutting edge, and bear the weight load of materials.

Preferably, the following components are used: a first inner shaft sleeve and a second inner shaft sleeve are respectively arranged at two ends of the left swing arm, one or more key grooves are formed in the inner hole wall of the first inner shaft sleeve, and the inner hole of the second inner shaft sleeve is a unthreaded hole; the two ends of the right swing arm are provided with a first outer shaft sleeve and a second outer shaft sleeve, one or more key grooves are formed in the inner hole wall of the first outer shaft sleeve, and the inner hole of the second outer shaft sleeve is a unthreaded hole.

The inner hole walls of the first inner shaft sleeves of the left swing arm and the right swing arm can also be set to be polygonal or adopt structures such as shaft pins and the like which can transmit torque.

Preferably: the driving mechanism is a module part and comprises an outer shaft and an inner shaft, wherein the outer shaft is in a hollow cylindrical shape, the outer shaft is sleeved on the inner shaft through a bearing, the outer shaft and the inner shaft are coaxial, and the outer shaft and the inner shaft can respectively and freely rotate; the output end of the outer shaft is provided with one or more key slots, the number of the key slots is equal to that of the key slots of the first outer shaft sleeve of the right swing arm, the output end of the inner shaft is provided with one or more key slots, and the number of the key slots is equal to that of the key slots of the first inner shaft sleeve of the left swing arm; the outer shaft and the inner shaft are driven by a driving motor or a driving hydraulic cylinder, the outer shaft and the inner shaft are connected with the motor or the hydraulic cylinder through a coaxial forward and reverse rotation connecting mechanism, the rotating speeds of the two shafts are the same, and the rotating directions of the two shafts are opposite; and after the driving mechanism is assembled, the driving mechanism is integrally installed on an installation flange at the active supporting end of the valve box body.

The output ends of the outer shaft and the inner shaft can also be set into structures which can transmit torque, such as polygonal shaft heads or shaft pins and the like, and the structures correspond to the inner hole wall structures of the first inner shaft sleeves of the left swing arm and the right swing arm.

Preferably, the following components are used: the valve clack assembly is arranged in the valve box body, a first inner shaft sleeve of the left valve clack assembly is matched with an inner shaft of a driving mechanism at the driving support end through keys, and the number of the keys is equal to that of key grooves of the inner shaft; the second inner shaft sleeve is matched and mounted with a stepped optical axis at the driven support end through a bearing, and the left valve clack assembly can freely rotate around the central axis of the shaft sleeve; the first outer shaft sleeve of the right valve flap assembly is matched with an outer shaft of a driving mechanism at the driving support end through keys, and the number of the keys is equal to that of keyways of the outer shaft; the second outer shaft sleeve is matched and installed with a stepped optical axis of the driven supporting end through a bearing, and the right valve clack assembly can freely rotate around the central axis of the shaft sleeve.

The first inner shaft sleeve of the left valve clack assembly and the inner shaft of the driving mechanism at the driving support end can also be installed in a matching way through structures which can transmit torque, such as polygonal shafts, holes or shaft pins; the first outer shaft sleeve of the right valve clack assembly and the outer shaft of the driving mechanism at the driving support end can also be installed in a matching way through a polygonal shaft, a hole or a shaft pin and other structures capable of transmitting torque.

Preferably: the blanking bush is arranged in the valve box body and is supported by the supporting bush; in the blanking process, a left valve clack assembly and a right valve clack assembly of the valve clack assembly are oppositely opened to the left and the right to a specified angle, and a discharge port which is approximate to a regular polygon is formed by the regular hexagon outlet cross section of the blanking lining and the left wear-resistant cutting edge and the right wear-resistant cutting edge of the valve clack assembly.

The utility model also discloses a blast furnace ironmaking equipment, characterized in that: including the flow regulating valve described above.

Has the advantages that:

the material flow regulating valve disclosed by the invention has the advantages that part of the spherical valve clacks are replaced by part of cylindrical valve clack assembly structures which are easy to manufacture, easy to ensure the size and relatively low in cost, so that the material clamping phenomenon in the operation process of equipment is avoided; the left valve clack assembly and the right valve clack assembly are respectively driven by an outer shaft and an inner shaft which are coaxial in the driving mechanism, the rotating speeds of the two shafts are the same, the rotating directions are opposite, and the valve clack assemblies are driven to open and close, so that the cutting edges of the two valve clacks are symmetrical relative to the center line of the blast furnace at any angle in an opening interval; the cross section of the outlet of the blanking lining is changed into a regular hexagon, so that a discharge port similar to the regular polygon is formed by the outlet and the cutting edge of the valve clack assembly, and the material falls in the middle.

Drawings

FIG. 1 is a three-dimensional schematic view of a flow regulating valve according to the present invention.

Fig. 2 is a front view cross-sectional view of a flow regulator valve of the present invention.

Fig. 3 is a top view of a flow regulating valve of the present invention.

Fig. 4 is a right side cross-sectional view of a flow regulating valve of the present invention.

Fig. 5 is an enlarged view of a portion of the active support end of the flow control valve of the present invention.

Fig. 6 is an enlarged view of a portion of the driven support end of the flow control valve of the present invention.

FIG. 7 is a three-dimensional view of the material flow regulating valve blanking bushing of the present invention.

FIG. 8 is a top view of the flow control valve blanking bushing of the present invention.

FIG. 9 is an enlarged view of a portion of a flow control valve flap assembly of the present invention.

Fig. 10 is a three-dimensional view of a flow regulating valve flap assembly of the present invention.

FIG. 11 is a discharge hole of an approximate regular polygon formed by the material flow adjusting valve blanking bushing, the left wear-resistant cutting edge and the right wear-resistant cutting edge together.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in fig. 1-4, a flow regulating valve of the present embodiment includes a valve box 1, a blanking bushing 2, a valve flap assembly 3, and a driving mechanism 4; the valve box body is a machine body of the material flow adjusting valve, the blanking lining bears the abrasion and impact of materials, the section of an outlet of the blanking lining is in a regular hexagon shape, and the blanking lining and a high-abrasion-resistant cutting edge of the valve clack assembly form a discharge port which is approximate to a regular polygon; the valve clack assembly is driven by a driving mechanism, the driving mechanism is integrally installed on the valve box body as a module, and the valve clack assembly is driven to open and close.

As shown in fig. 4-6, the valve housing includes a valve housing cylindrical section 11 and a valve housing conical section 12, the valve housing cylindrical section is provided with a first upper flange 111 at the upper end, a first lower flange 112 at the lower end, a driving support end 114 and a driven support end 115 at the side wall, the first upper flange 111 is further provided with a support bushing 113, the upper portion of the support bushing is conical, the lower portion of the support bushing is cylindrical, the support bushing is fixedly connected to the first upper flange by welding or screws, and the support bushing is used for supporting the blanking bushing 2; the driving support end is provided with a mounting flange 1141, the driven support end 115 is arranged at the opposite side of the driving support end, the driven support end is a stepped optical axis, and the stepped optical axis is provided with a driven outer shaft 1151 and a driven inner shaft 1152; the upper end of the valve box body conical cylinder section is provided with a second upper flange 121, the lower end of the valve box body conical cylinder section is provided with a second lower flange 122, the second upper flange 121 is connected with the first upper flange 111 through bolts, and the valve box body cylindrical section 11 and the valve box body conical cylinder section 12 are fixedly connected into a whole.

As shown in fig. 7-8, the blanking lining 2 includes a conical cylinder section 21, a cylindrical cylinder section 22, and a hexagonal outlet 23, the conical cylinder section 21 is used for gathering materials, the cylindrical cylinder section 22 is used for further guiding materials so that the materials do not diverge when flowing, and a hexagonal guide pipe is disposed inside the cylindrical cylinder section 22 to form the hexagonal outlet 23.

As shown in fig. 2, 9 and 10, the valve flap assembly 3 comprises a left valve flap assembly 31 and a right valve flap assembly 32, and the left valve flap assembly 31 and the right valve flap assembly 32 are symmetrical in structure and are flush and opposite to each other left and right; the left valve clack component comprises a left wear-resistant lining plate 311 and a left steel shell 313; a left high wear edge 315, a left swing arm 317; the right valve flap component comprises a right wear-resistant lining plate 312, a right steel shell 314, a right high wear-resistant cutting edge 316 and a right swing arm 318; the left wear-resistant lining plate 311 and the right wear-resistant lining plate 312 are respectively in partial cylinder shapes, the radial cross section of each wear-resistant lining plate is in an arc shape, and the left wear-resistant lining plate and the right wear-resistant lining plate can be integrally manufactured or can be manufactured into a plurality of small blocks in a split mode and are spliced and assembled into partial cylinder shapes; the left steel shell 313 and the right steel shell 314 are respectively in a partial cylinder shape, the radial section of the left steel shell 313 and the right steel shell 314 is in an arc shape, the left steel shell and the right steel shell can be integrally manufactured or can be manufactured into a plurality of small blocks in a split mode, the small blocks are spliced and assembled into the partial cylinder shape, the upper surface of the left steel shell is attached to the lower surface of the left wear-resistant lining plate, and the left steel shell and the right steel shell are fixedly connected in a bolt connection or welding mode; the upper surface of the right steel shell is attached to the lower surface of the right wear-resistant lining plate and fixedly connected with the lower surface of the right wear-resistant lining plate in a bolt connection or welding mode; a left swing arm positioning groove and a right swing arm positioning groove are respectively formed in the lower surfaces of the left steel shell 313 and the right steel shell 314; the middle cross beams of the left swing arm 317 and the right swing arm 318 are respectively embedded into the left swing arm positioning groove and the right swing arm positioning groove and fixedly connected through bolts or welding; a first inner shaft sleeve 3171 and a second inner shaft sleeve 3172 are respectively arranged at two ends of the left swing arm 317, one or more key grooves are formed in the inner hole wall of the first inner shaft sleeve, and the inner hole of the second inner shaft sleeve is a smooth hole; a first outer shaft sleeve 3181 and a second outer shaft sleeve 3182 are arranged at two ends of the right swing arm 318, one or more key slots are formed in the inner hole wall of the first outer shaft sleeve, and the inner hole of the second outer shaft sleeve is a unthreaded hole; the left high wear-resistant cutting edge 315 and the right high wear-resistant cutting edge 316 are partially cylindrical, the radial section of the cutting edge is arc-shaped, and the cutting edge and the right high wear-resistant cutting edge are made of high wear-resistant materials, can be integrally manufactured, can be manufactured into a plurality of small blocks in a split mode, and are spliced and assembled into a partially cylindrical shape; the lower surface of the left high wear-resistant cutting edge is attached to the upper surface of the front end of the left steel shell and fixedly connected with the upper surface of the front end of the left steel shell in a bolt connection or welding mode; the lower surface of the right high wear-resistant cutting edge is attached to the upper surface of the front end of the right steel shell and fixedly connected with the upper surface of the front end of the right steel shell in a bolt connection or welding mode; the left swing arm 317 and the right swing arm 318 are used as a left wear-resistant lining plate 311 and a left steel shell 313; the left high wear-resistant cutting edge 315, the right wear-resistant lining plate 312, the right steel shell 314 and the right high wear-resistant cutting edge 316 bear the load of the materials simultaneously.

As shown in fig. 1, 4 and 5, the driving mechanism 4 is a module component, and includes an outer shaft 41 and an inner shaft 42, the outer shaft is hollow and cylindrical, the outer shaft is sleeved on the inner shaft through a bearing, the outer shaft and the inner shaft are coaxial, and the outer shaft and the inner shaft can rotate freely; one or more key slots are formed in the output end of the outer shaft 41 at equal intervals, the number of the key slots is equal to that of the key slots of the first outer shaft sleeve 3181 of the right swing arm, one or more key slots are formed in the output end of the inner shaft 42 at equal intervals, and the number of the key slots is equal to that of the key slots of the first inner shaft sleeve 3171 of the left swing arm; the outer shaft and the inner shaft are connected with a motor or a hydraulic cylinder through a coaxial forward and reverse rotation connecting structure, the rotating speeds of the two shafts are the same, and the rotating directions are opposite; after the driving mechanism 4 is assembled, the driving mechanism is integrally mounted on the mounting flange 1141 at the active supporting end of the valve housing 1.

The valve clack assembly 3 is arranged in the valve box body 1, a first inner shaft sleeve 3171 of the left valve clack assembly is installed in a matching mode with an inner shaft 42 of a driving mechanism at a driving support end through keys, and the number of the keys is equal to that of inner shaft key grooves, so that the inner shaft can uniformly transmit torque to a left swing arm; the second inner shaft sleeve 3172 is matched and installed with a driven inner shaft 1152 of a stepped optical axis of a driven support end through a bearing, and the left valve clack assembly can freely rotate around the central axis of the first inner shaft sleeve; the first outer shaft sleeve 3181 of the right valve flap assembly is installed in a matched mode through keys and an outer shaft 41 of a driving mechanism located at the driving support end, the number of the keys is equal to that of outer shaft key grooves, so that the outer shaft can evenly transmit torque to the right swing arm, the second outer shaft sleeve 3182 is installed in a matched mode through a driven outer shaft 1151 of a stepped optical axis of the driven support end through a bearing, and the right valve flap assembly can freely rotate around the central axis of the first outer shaft sleeve.

The blanking bush 2 is arranged in the valve box body 1 and supported by the support bush 113, which plays the roles of collecting materials and protecting other parts from being worn by the materials, in the blanking process, the left valve clack assembly and the right valve clack assembly of the valve clack assembly 3 are oppositely opened to the left and right to a specified angle (generally not fully opened), and the regular hexagon outlet cross section 23 of the blanking bush and the left wear-resistant cutting edge 315 and the right wear-resistant cutting edge of the valve clack assembly 3 jointly form a discharge port which is approximate to a regular polygon. When the valve works, a motor or a hydraulic cylinder of the driving mechanism 4 is started, the motor or the hydraulic cylinder is driven by the coaxial forward and reverse rotation connecting structure, and the outer shaft and the inner shaft run in the same speed and reverse direction, so that the left valve clack assembly and the right valve clack assembly of the valve clack assembly 3 are driven to symmetrically open and close in real time, the motor or the hydraulic cylinder rotates in the forward direction, the valve clack assembly is opened, the motor or the hydraulic cylinder rotates in the reverse direction, and the valve is closed.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.

Claims

1. A kind of material flow control valve, including valve box, blanking bush, valve clack assembly, actuating mechanism, its characteristic is: the valve box body is a machine body of the material flow adjusting valve; the section of an outlet of the blanking lining is a regular hexagon, and the blanking lining and the cutting edge of the valve clack assembly form a discharge hole which is approximate to a regular polygon; the valve clack assembly comprises a left valve clack assembly and a right valve clack assembly, the left valve clack assembly and the right valve clack assembly are symmetrical in structure and are in left-right flush split; the driving mechanism is provided with two coaxial rotating output shafts, the rotating speeds of the two shafts are the same, the rotating directions of the two shafts are opposite, and the valve clacks are driven to be opened and closed; the unloading bush is provided with: a cone section and a cylinder section; the conical cylinder section is used for collecting materials, the cylindrical section is used for further guiding the materials, so that the materials are not dispersed when flowing, and a hexagonal material guiding pipe is arranged inside the cylindrical section, so that a hexagonal outlet is formed; the valve clack assembly comprises a left valve clack assembly and a right valve clack assembly, the left valve clack assembly and the right valve clack assembly are symmetrical in structure, are level and split left and right, and comprise a left wear-resistant lining plate, a left steel shell, a left high wear-resistant cutting edge and a left swing arm; the right valve clack assembly comprises a right wear-resistant lining plate, a right steel shell, a right high wear-resistant cutting edge and a right swing arm; the left wear-resistant lining plate, the right wear-resistant lining plate, the left steel shell, the right steel shell, the left high wear-resistant cutting edge and the right high wear-resistant cutting edge are partially cylindrical, and the upper surface of the left steel shell is attached to the lower surfaces of the left wear-resistant lining plate and the left high wear-resistant cutting edge and is fixedly connected in a bolt connection or welding mode; the upper surface of the right steel shell is attached to the lower surfaces of the right wear-resistant lining plate and the right high wear-resistant cutting edge and fixedly connected in a bolt connection or welding mode; the left swing arm and the right swing arm are respectively used as a bearing base body of the left wear-resistant lining plate, the left steel shell, the left high wear-resistant cutting edge, the right wear-resistant lining plate, the right steel shell and the right high wear-resistant cutting edge, and bear the weight load of materials.

2. The flow regulating valve of claim 1, wherein: the valve box body comprises a valve box body cylindrical section and a valve box body conical section, a first upper flange is arranged at the upper end of the valve box body cylindrical section, a first lower flange is arranged at the lower end of the valve box body cylindrical section, a driving supporting end and a driven supporting end are arranged on the side wall of the valve box body cylindrical section, a supporting bushing is further arranged on the first upper flange, the upper part of the supporting bushing is in a conical cylinder shape, the lower part of the supporting bushing is in a cylindrical shape, the supporting bushing is fixedly connected to the first upper flange through a welding mode or a screw, and the supporting bushing is used for supporting a blanking bushing; the driving support end is provided with a mounting flange, the driven support end is arranged at the opposite side of the driving support end, and the driven support end is a stepped optical axis; the upper end of the valve box body conical cylinder section is provided with a second upper flange, the lower end of the valve box body conical cylinder section is provided with a second lower flange, and the first lower flange and the second upper flange are fixedly connected through bolts to fixedly connect the valve box body cylindrical section and the valve box body conical cylinder section into a whole.

3. The flow regulating valve of claim 1, wherein: a first inner shaft sleeve and a second inner shaft sleeve are respectively arranged at two ends of the left swing arm, one or more key slots or a polygonal or shaft pin torque transmission structure are arranged on the inner hole wall of the first inner shaft sleeve, and the inner hole of the second inner shaft sleeve is a smooth hole; the two ends of the right swing arm are provided with a first outer shaft sleeve and a second outer shaft sleeve, one or more key grooves are formed in the inner hole wall of the first outer shaft sleeve, or a polygonal structure or a structure with a shaft pin for transmitting torque is formed, and the inner hole of the second outer shaft sleeve is a unthreaded hole.

4. The flow regulating valve of claim 1, wherein: the driving mechanism is a module part and comprises an outer shaft and an inner shaft, the outer shaft is hollow and columnar, the outer shaft is sleeved on the inner shaft through a bearing, the outer shaft and the inner shaft are coaxial, and the outer shaft and the inner shaft can freely rotate respectively; the output end of the outer shaft is provided with one or more key slots or is set into a structure for transmitting torque by a polygonal shaft head or a shaft pin, the structure corresponds to the structure of the first outer shaft sleeve of the right swing arm, and the output end of the inner shaft is provided with one or more key slots or is set into a structure for transmitting torque by the polygonal shaft head or the shaft pin, and corresponds to the structure of the first inner shaft sleeve of the left swing arm; the outer shaft and the inner shaft are driven by a driving motor or a driving hydraulic cylinder, the outer shaft and the inner shaft are connected with the motor or the hydraulic cylinder through a coaxial forward and reverse rotation connecting mechanism, the rotating speeds of the two shafts are the same, and the rotating directions of the two shafts are opposite; and after the driving mechanism is assembled, the driving mechanism is integrally installed on the installation flange at the active supporting end of the valve box body.

5. The flow regulating valve of claim 3, wherein: the valve clack assembly is arranged in the valve box body, a first inner shaft sleeve of the left valve clack assembly is matched and installed with an inner shaft of a driving mechanism positioned at the driving support end, and the structural forms of the first inner shaft sleeve and the inner shaft correspond to each other; the second inner shaft sleeve is matched and mounted with a stepped optical axis at the driven support end through a bearing, and the left valve clack assembly can freely rotate around the central axis of the shaft sleeve; the first outer shaft sleeve of the right valve flap assembly is matched and installed with an outer shaft of the driving mechanism at the driving support end, and the structures of the first outer shaft sleeve and the outer shaft of the driving mechanism are mutually corresponding; the second outer shaft sleeve is matched and installed with a stepped optical axis of the driven supporting end through a bearing, and the right valve clack assembly can freely rotate around the central axis of the shaft sleeve.

6. The flow regulating valve according to any one of claims 1 to 5, wherein: the blanking bush is arranged in the valve box body and is supported by the supporting bush; in the blanking process, the left valve clack assembly and the right valve clack assembly of the valve clack assembly are oppositely opened to a specified angle from left to right, and the regular hexagonal outlet cross section of the blanking lining and the left wear-resistant cutting edge and the right wear-resistant cutting edge of the valve clack assembly jointly form a discharge port which is approximate to a regular polygon.

7. Blast furnace ironmaking equipment is characterized in that: comprising the flow regulating valve as claimed in any of claims 1 to 6.