阅读说明：本技术 一种设置在高炉上的移动式布料器 (Movable distributing device arranged on blast furnace ) 是由 周恒� 刘燕军 佘雪峰 王瑞强 牛倩倩 于 2020-03-31 设计创作，主要内容包括：本发明公开了一种设置在高炉上的移动式布料器,包括架设在高炉顶部的支撑架,支撑架上设有纵向驱动机构,在纵向驱动机构的驱动部件上通过横向驱动框架设置有横向驱动机构,布料器的主体内设有由上向下的投料锥斗,投料斗的下端口与投料管的一端连接,投料管的另一端通向高炉的上端口,投料斗的上端口的形状及大小应满足布料器移动到任意极限位置,投料斗的上端口都在原料固定传送设备的原料落下点的范围内；物料由布料器的主体上端投入通过投料锥斗、投料管投入到高炉内,而布料器在横向驱动机构、纵向驱动机构的驱动下投送到高炉内的设定部位,并可通过在每个设定部位的设定投料时间控制设定部位的投料量,从而构成3D打印式的投料布局。(The invention discloses a movable distributing device arranged on a blast furnace, which comprises a supporting frame erected at the top of the blast furnace, wherein a longitudinal driving mechanism is arranged on the supporting frame, a transverse driving mechanism is arranged on a driving part of the longitudinal driving mechanism through a transverse driving frame, a feeding conical hopper from top to bottom is arranged in a main body of the distributing device, a lower port of the feeding hopper is connected with one end of a feeding pipe, the other end of the feeding pipe is communicated with an upper port of the blast furnace, the shape and the size of the upper port of the feeding hopper are in a range of a raw material falling point of a raw material fixing and conveying device, and the shape and the size of the upper port of the feeding hopper are in a range of the raw material falling point of the distributing device; the material is thrown into the blast furnace from the upper end of the main body of the distributing device through the feeding cone hopper and the feeding pipe, the distributing device is driven by the transverse driving mechanism and the longitudinal driving mechanism to be thrown to the set positions in the blast furnace, and the feeding amount of the set positions can be controlled through the set feeding time of each set position, so that the 3D printing type feeding layout is formed.)

1. A movable distributing device arranged on a blast furnace is characterized by comprising a supporting frame erected at the top of the blast furnace, wherein a longitudinal driving mechanism is arranged on the supporting frame, a transverse driving mechanism is arranged on a driving part of the longitudinal driving mechanism through a transverse driving frame or a transverse driving plate, a distributing device is arranged on a driving part of the transverse driving mechanism through a distributing device driving frame or a distributing device driving plate, a feeding conical hopper from top to bottom is arranged in a main body of the distributing device, a lower port of the feeding hopper is connected with one end of a feeding pipe, the other end of the feeding pipe is communicated with an upper port of the blast furnace, the shape and the size of the upper port of the feeding hopper are in a mode that the distributing device moves to any limit position, and the upper port of the feeding hopper is in the range of a raw material falling point of a raw material fixing and conveying device; the material is thrown into the blast furnace through the feeding cone hopper and the feeding pipe from the upper end of the main body of the distributing device, and is thrown into the blast furnace from the feeding port at the lower end of the feeding pipe, the distributing device can be driven by the transverse driving mechanism and the longitudinal driving mechanism to feed the material to the set positions in the blast furnace according to the feeding distribution requirements, and the feeding amount of the set positions can be controlled through the set feeding time of each set position, so that the 3D printing type feeding layout is formed.

2. The mobile distributor installed on the blast furnace as claimed in claim 1, wherein 2-3 fixed material conveying devices are installed at the upper end of the distributor for delivering the sintered ore, pellet and solvent into the blast furnace, respectively.

3. The mobile distributing device installed on the blast furnace as claimed in claim 2, wherein the lateral driving mechanism comprises a lateral driving nut, one side of the lateral driving nut is connected with the distributing device driving frame or the distributing device driving plate, a screw hole of the lateral driving nut is in threaded fit with a lateral screw rod, and two ends of the lateral screw rod are connected with the lateral driving frame or the lateral driving plate through a bearing and a bearing seat, wherein one end of the lateral screw rod is connected with a lateral driving motor, the lateral driving motor is connected with the lateral driving frame or the lateral driving plate through a base, a lateral guide block is installed on the other side of the lateral driving nut, and the lateral guide block is in sliding fit with a lateral guide groove installed on the lateral driving frame or the lateral driving plate.

4. The moving distributor installed on the blast furnace as claimed in claim 3, wherein the longitudinal driving mechanism comprises a longitudinal driving nut, one side of the longitudinal driving nut is connected to the bottom of the transverse driving frame or the transverse driving plate, a screw hole of the longitudinal driving nut is in threaded engagement with a longitudinal screw rod, both ends of the longitudinal screw rod are connected to the supporting frame through a bearing and a bearing seat, wherein one end of the longitudinal screw rod is connected to a longitudinal driving motor, the longitudinal driving motor is connected to the supporting frame through a base, a longitudinal guide block is installed on the other side of the longitudinal driving nut, and the longitudinal guide block is in sliding engagement with a longitudinal guide groove installed on the supporting frame.

5. The mobile distributor provided on the blast furnace as claimed in claim 3 or 4, wherein there are two sets of the transverse driving mechanism and the longitudinal driving mechanism respectively and symmetrically.

6. The mobile distributor provided on the blast furnace as claimed in claim 5, wherein the transverse driving motor and the longitudinal driving motor are servo motors, each servo motor is electrically connected with the P L C controller.

7. The mobile distributor installed on blast furnace as claimed in claim 6, wherein the said feeding pipe is installed with ball valve, one end of the ball valve is connected with the ball valve switch control servo motor, the ball valve switch control servo motor is connected with the P L C controller.

8. The moving distributor provided on a blast furnace as set forth in claim 7, wherein said support frame, said transverse driving frame or said transverse driving plate is made of carbon fiber, or a carbon fiber layer is attached to a surface of said support frame, said transverse driving frame or said transverse driving plate.

9. The mobile distributor provided on a blast furnace as claimed in claim 8 wherein said support frame is supported directly on the top of the blast furnace or said support frame is supported directly on the ground.

10. The mobile distributor installed on the blast furnace as claimed in claim 8, wherein a camera and/or an ultrasonic detector electrically connected to the P L C controller is installed at the bottom of the supporting frame.

Technical Field

The invention relates to the technical field of blast furnace top equipment, in particular to a movable distributing device arranged on a blast furnace.

Background

The blast furnace is the main body of the blast furnace iron-making process, iron ore, fuel and solvent are charged from the upper part of the furnace body, air is blown from the lower part to burn the fuel, a large amount of high-temperature reducing gas is generated to move upwards, and the furnace burden is subjected to a series of physical and chemical processes such as heating, reduction, melting, slagging and the like in the descending process to finally generate liquid slag and pig iron.

The proportion, the placing position and the distribution mode of the materials have important influence on the operation of the blast furnace, and the accurate material distribution has important significance on the operation of the blast furnace. In the prior art, the material flow is controlled by the opening degree of a material flow regulating valve on a bell-less furnace top to control the material speed, and the material distribution position is controlled by the tilting and rotation of a distribution chute, wherein the chute is controlled in a weight and time mode.

The weight mode is characterized in that after a preset material distribution matrix is read, data in the matrix are converted into weight parameters, and materials with set weight are placed at set positions during material distribution. In the time mode, after a preset distribution matrix is read, data in the matrix are converted into the number of rotation turns, and the preset number of turns is rotated at a set angle during distribution, so that the purpose of distributing materials with specific weight at a specific position is achieved.

In practical application, because the weight mode can more accurately lay out the materials, the weight mode is adopted in most cases in production, but the stability of the weighing equipment in the weight mode is very dependent, and in practical production, the pressure of the blast furnace changes, the materials on the charging bucket are stacked, the weighing stability is often influenced, and the material distribution is unstable. The time mode is independent of the weighing equipment, however, the traditional time mode controls the material distribution according to the number of turns, the precision is poor, the form of a distribution matrix is limited, and the effective value must be a reasonable natural number.

In addition, the discharge ports of the existing distributing devices are all arranged at fixed positions, and the purpose of putting materials into the set positions in the blast furnace is achieved through the rotation of the chute and the change of the inclination angle of the chute. However, the feeding mode cannot achieve accurate control, and the materials are distributed and fed into the blast furnace in an assumed mode.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a blast furnace distributor with a movable feeding port, which is simple in structure, convenient to operate, high in automation degree and accurate in control and can be used for feeding materials into a blast furnace according to an arbitrarily set feeding layout structure.

In order to achieve the purpose, the technical scheme of the invention is to provide a movable distributing device arranged on a blast furnace, which comprises a supporting frame erected at the top of the blast furnace, wherein a longitudinal driving mechanism is arranged on the supporting frame, a transverse driving mechanism is arranged on a driving part of the longitudinal driving mechanism through a transverse driving frame or a transverse driving plate, a distributing device is arranged on a driving part of the transverse driving mechanism through a distributing device driving frame or a distributing device driving plate, a feeding conical hopper from top to bottom is arranged in a main body of the distributing device, a lower port of the feeding hopper is connected with one end of a feeding pipe, the other end of the feeding pipe is communicated with an upper port of the blast furnace, the shape and the size of the upper port of the feeding hopper are in the range of a raw material falling point of raw material fixing and conveying equipment, and the shape and the size of the upper port of the feeding hopper are in accordance; the material is thrown into the blast furnace through the feeding cone hopper and the feeding pipe from the upper end of the main body of the distributing device, and is thrown into the blast furnace from the feeding port at the lower end of the feeding pipe, the distributing device can be driven by the transverse driving mechanism and the longitudinal driving mechanism to feed the material to the set positions in the blast furnace according to the feeding distribution requirements, and the feeding amount of the set positions can be controlled through the set feeding time of each set position, so that the 3D printing type feeding layout is formed.

In order to facilitate the feeding of different materials into the blast furnace respectively or simultaneously according to the feeding layout requirements and improve the feeding efficiency, the preferred technical scheme is that 2-3 raw material fixed conveying devices are arranged at the upper end of the distributing device and are respectively used for feeding sintered ores, pellets and solvents into the blast furnace.

In order to ensure that the feeding port of the distributing device can flexibly move along the transverse direction (X direction), simplify a driving mechanism and fix the feeding port of a feeding pipe on a frame or a plate surface so that the feeding port cannot swing randomly, the further preferable technical proposal is that the transverse driving mechanism comprises a transverse driving nut, one side of the transverse driving nut is connected with a distributing device driving frame or a distributing device driving plate, a screw hole of the transverse driving nut is in threaded fit with a transverse screw rod, two ends of the transverse screw rod are connected with the transverse driving frame or the transverse driving plate through a bearing and a bearing seat, wherein one end of the transverse screw rod is connected with a transverse driving motor which is connected with a transverse driving frame or a transverse driving plate through a base, and a transverse guide block is arranged on the other side of the transverse driving nut and is in sliding fit with a transverse guide groove arranged on the transverse driving frame or the transverse driving plate.

In order to ensure that the distributing device can flexibly move along the longitudinal direction (Y direction), simplify a driving mechanism, and fix a transverse driving frame or a transverse driving plate on a longitudinal driving frame or a longitudinal driving plate surface to enable the transverse driving frame or the longitudinal driving plate to stably move, the preferable technical scheme is that the longitudinal driving mechanism comprises a longitudinal driving nut, one side of the longitudinal driving nut is connected with the bottom of the transverse driving frame or the transverse driving plate, a screw hole of the longitudinal driving nut is in threaded fit with a longitudinal screw rod, two ends of the longitudinal screw rod are connected with a supporting frame through a bearing and a bearing seat, one end of the longitudinal screw rod is connected with a longitudinal driving motor, the longitudinal driving motor is connected with the supporting frame through a base, a longitudinal guide block is arranged on the other side of the longitudinal driving nut, and the longitudinal guide block is in sliding fit with a longitudinal.

Because the size and the weight of the distributing device, the feeding pipe, the transverse driving mechanism and the longitudinal driving mechanism are large, in order to ensure the safe and stable operation of each driving mechanism and the feeding pipe, the further preferable technical scheme is that the transverse driving mechanism and the longitudinal driving mechanism are respectively and symmetrically provided with two sets.

In order to control the position of the distributing device to move flexibly and quickly and control the moving speed or the staying time of the feeding port, the further preferable technical scheme is that the transverse driving motor and the longitudinal driving motor are servo motors, and each servo motor is electrically connected with the P L C controller.

In order to facilitate the control of the feeding time of the feeding port and the feeding stop time, a ball valve is mounted on the feeding pipe, one end of the ball valve is connected with a ball valve switch control servo motor, and the ball valve switch control servo motor is electrically connected with a P L C controller.

In order to reduce the overall weight of the distributor support frame, the transverse driving mechanism and the longitudinal driving mechanism and simultaneously enable the distributor support frame, the transverse driving mechanism and the longitudinal driving mechanism to have good high-temperature resistance and corrosion resistance, a further preferable technical scheme is that the support frame, the transverse driving frame or the transverse driving plate is made of carbon fibers, or a carbon fiber layer is attached to the surface of the support frame, the transverse driving frame or the transverse driving plate.

In order to reduce the overall structural size of the support frame and firmly fix the support frame on the top of the blast furnace, a further preferred technical scheme is that the support frame is directly supported on the top of the blast furnace or the support frame is directly supported on the ground.

In order to monitor the condition of charging the furnace burden into the blast furnace at any time and adjust the charging scheme at any time, a camera and/or an ultrasonic detector electrically connected with the P L C controller are arranged at the bottom of the support frame.

The movable distributing device has the advantages and beneficial effects that the movable distributing device arranged on the blast furnace has the characteristics of simple structure, convenience in operation, high automation degree, accurate control of feeding amount in the feeding direction, capability of feeding materials into the blast furnace according to an arbitrarily set feeding layout structure and the like. Different materials can be thrown into the blast furnace in a 3D printing mode, and the feeding mode thoroughly changes the feeding mode of chute selective loading and chute pitch angle adjustment in the prior art.

Drawings

Fig. 1.1, 1.2 and 1.3 are schematic sectional structural views of a movable distributor arranged on a blast furnace in a state of 3 positions;

2.1, 2.2 and 2.3 are schematic structural diagrams of the movable distributor arranged on the blast furnace in a top view and a cross section in 3 positions;

3.1, 3.2 are schematic front and top views of the lateral drive mechanism of FIG. 1;

fig. 4.1 and 4.2 are schematic front and top views of the longitudinal driving mechanism in fig. 1.

The automatic feeding device comprises a blast furnace 1, a blast furnace 2, a distributor driving frame 2.1, a support frame 3, a longitudinal driving mechanism 4, a longitudinal driving nut 4.1, a longitudinal lead screw 4.2, a longitudinal driving frame 4.3, a longitudinal guide block 4.4, a longitudinal guide groove 4.5, a transverse driving mechanism 5.1, a transverse driving nut 5.2, a transverse lead screw 5.3, a transverse driving frame 5.4, a transverse driving motor 5.5, a transverse guide block 5.6, a transverse guide groove 6, a feeding cone hopper 7, a feeding pipe 8, a raw material fixing and conveying device 9, a P L C controller 10, a ball valve 11, a ball valve switch control servo motor 12 and a camera.

Detailed Description

The following description of the embodiments of the present invention will be made 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.

As shown in figures 1.1-4.2, the invention is a movable distributing device 2 arranged on a blast furnace 1, which comprises a supporting frame 3 erected on the top of the blast furnace 1, a longitudinal driving mechanism 4 arranged on the supporting frame 3, a transverse drive mechanism 5 is arranged on the drive part of the longitudinal drive mechanism 4 by means of a transverse drive frame or a transverse drive plate, a distributing device 2 is arranged on a driving part of a transverse driving mechanism 5 through a distributing device driving frame or a distributing device driving plate, a feeding conical hopper 6 from top to bottom is arranged in a main body of the distributing device 2, a lower port of the feeding hopper 6 is connected with one end of a feeding pipe 7, the other end of the feeding pipe 7 is communicated with an upper port of the blast furnace 1, the shape and the size of the upper port of the feeding hopper 6 are such that the distributing device moves to any limit position, and the upper port of the feeding hopper 6 is within the range of a raw material falling point of a raw material fixing and conveying device 8; the material is put into the blast furnace 1 from the main body upper end of the distributing device 2 through the feeding cone hopper 6 and the feeding pipe 7, and is put into the blast furnace 1 from the feeding port at the lower end of the feeding pipe 7, and the distributing device 2 can feed the material to the set position in the blast furnace 1 according to the feeding distribution demand under the drive of the transverse driving mechanism 5 and the longitudinal driving mechanism 4, and can control the feeding amount of the set position through the set feeding time at each set position, thereby forming the 3D printing type feeding layout.

In order to facilitate the separate or simultaneous feeding of different materials into the blast furnace according to the feeding layout and to improve the feeding efficiency, the preferred embodiment of the present invention is that 2-3 raw material fixed conveying devices 8 are arranged at the upper end of the distributor 2 and are respectively used for feeding the sintered ore, the pellet and the solvent into the blast furnace.

In order to ensure that the feeding port of the distributing device 2 can move flexibly along the transverse direction (X direction), simplify a driving mechanism and fix the feeding port of the feeding pipe 7 on a frame or a plate surface so that the feeding port cannot swing freely, the further preferable embodiment of the invention is that the transverse driving mechanism 5 comprises a transverse driving nut 5.1, one side of the transverse driving nut 5.1 is connected with the distributing device driving frame 2.1, a screw hole of the transverse driving nut 5.1 is in threaded fit with a transverse screw rod 5.2, two ends of the transverse screw rod 5.2 are connected with the transverse driving frame 5.3 through a bearing and a bearing seat, wherein one end of the transverse screw rod 5.2 is connected with a transverse driving motor 5.4, the transverse driving motor 5.4 is connected with a transverse driving frame 5.3 through a base, a transverse guide block 5.5 is arranged on the other side of the transverse driving nut 5.1, and the transverse guide block 5.5 is in sliding fit with a transverse guide groove 5.6 arranged on the transverse driving frame 5.3.

In order to ensure that the distributing device 2 can flexibly move along the longitudinal direction (Y direction), simplify a driving mechanism and fix the transverse driving frame 5.3 on a longitudinal driving part to enable the transverse driving part to stably move, the further preferable embodiment of the invention is that the longitudinal driving mechanism 4 comprises a longitudinal driving nut 4.1, one side of the longitudinal driving nut 4.1 is connected with the bottom of the transverse driving frame 5.3, a screw hole of the longitudinal driving nut 4.1 is in threaded fit with a longitudinal screw rod 4.2, two ends of the longitudinal screw rod 4.2 are connected with a supporting frame 3 through a bearing and a bearing seat, one end of the longitudinal screw rod 4.2 is connected with a longitudinal driving motor 4.3, the longitudinal driving motor 4.3 is connected with the supporting frame 3 through a base, the other side of the longitudinal driving nut 4.1 is provided with a longitudinal guide block 4.4, and the longitudinal guide block 3 is in sliding fit with a longitudinal guide groove 4.5 arranged on the supporting frame.

Because the size and the weight of the distributing device 3, the feeding pipe 7, the transverse driving mechanism 5 and the longitudinal driving mechanism 4 are larger, in order to ensure the safe and stable operation of each driving mechanism and the feeding pipe 7, the further preferable embodiment of the invention is that the transverse driving mechanism 5 and the longitudinal driving mechanism 4 are respectively and symmetrically provided with two sets.

In order to facilitate the control of the position of the distributing device 2, the movement is flexible and fast, and the moving speed or the residence time of the feeding port is convenient to control, in a further preferred embodiment of the invention, the transverse driving motor 5.4 and the longitudinal driving motor 4.3 are servo motors, and each servo motor is electrically connected with the P L C controller 9.

In order to control the feeding time of the feeding port and the feeding stopping time, the feeding pipe 7 is provided with a ball valve 10, one end of the ball valve 10 is connected with a ball valve switch control servo motor 11, and the ball valve switch control servo motor 11 is electrically connected with a P L C controller 9.

In order to reduce the overall weight of the support frame 3, the transverse driving mechanism 5 and the longitudinal driving mechanism 4 of the distributing device 2 and to provide good high temperature resistance and corrosion resistance, it is a further preferred embodiment of the present invention that the support frame 3 and the transverse driving frame 5.3 are made of carbon fiber or a carbon fiber layer is attached to the surface of the support frame 3 and the transverse driving frame 5.3.

In order to facilitate the reduction of the overall structural size of the support frame 3 and to enable the support frame 3 to be firmly fixed to the top of the blast furnace 1, it is also a further preferred embodiment of the present invention that said support frame 3 is directly supported on the top of the blast furnace 1, or that said support frame 3 is directly supported on the ground.

In order to monitor the charging condition of the charging material into the blast furnace 1 at any time and to adjust the charging scheme at any time, a further preferred embodiment of the present invention is to provide a camera 12 and/or an ultrasonic detector electrically connected to the P L C controller 9 at the bottom of the supporting frame 3.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.