A mixed material spraying device based on the visualization of material and flow field state

Abstract

The present invention discloses a mixed material blowing device based on the visualization of material and flow field state, comprising a furnace body, a feeding module, a blowing system, a visualization monitoring module and a control system, wherein the feeding module is used to convey raw materials into the furnace body, the visualization monitoring module adopts laser detection technology to detect the flow field state in the furnace body, the control system controls the blowing system to change the blowing angle and strength according to the flow field information in the furnace body monitored by the visualization monitoring module, the blowing system comprises a hot air surrounding pipe, a main pipe, a spherical connection component, a blowing pipe and a driving mechanism, wherein the hot air surrounding pipe is installed on the outside of the furnace body, a plurality of main pipes are arranged on the hot air surrounding pipe, the main pipe extends into the inside of the furnace body and is connected to the blowing pipe through two spherical connection components, and a driving mechanism for driving the blowing pipe to deflect is arranged on the furnace body.

Description

Technical Field

[0001] The invention relates to the technical field of blast furnace injection, in particular to a mixed material injection device based on the visualization of material and flow field states. Background Art

[0002] In the blast furnace ironmaking process, the injection system is of great significance for improving production efficiency, reducing energy consumption and reducing environmental pollution. The principle is to use the injection system to inject coal powder into the furnace body. The coal powder is gasified at the tuyere to release more hydrogen than coke, thereby improving the reduction ability and penetration and diffusion ability of the coal gas, which is beneficial to the improvement of ore reduction and blast furnace operating indicators.

[0003] Furthermore, it is necessary to monitor the flow field in the furnace during the injection, so as to more accurately control the iron-making process and improve the smelting efficiency. However, the injection pipes of the existing injection systems are all fixedly arranged, and there are injection dead angles in the furnace during the injection, and vortices are easily formed, which reduces the reducibility of the iron powder and affects the smelting efficiency. Moreover, the flow field state can only be adjusted by changing the injection intensity, and it cannot be guaranteed that all the iron powder in the furnace will obtain a uniform and effective reduction effect.

[0004] Therefore, it is necessary to provide a mixed material blowing device based on the visualization of the material and flow field state to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mixed material blowing device based on the visual material and flow field state, comprising a furnace body, a feeding module, a blowing system, a visual monitoring module and a control system, wherein the feeding module is used to transport raw materials into the furnace body, the visual monitoring module uses laser detection technology to detect the flow field state in the furnace body, and the control system controls the blowing system to change the blowing angle and strength according to the flow field information in the furnace body monitored by the visual monitoring module;

[0006] The blowing system includes a hot blast surrounding pipe, a main pipe, a spherical connection assembly, a blowing pipe and a driving mechanism, wherein the hot blast surrounding pipe is installed on the outside of the furnace body, a plurality of main pipes are arranged on the hot blast surrounding pipe, the main pipes extend into the inside of the furnace body and are connected to the blowing pipe through two spherical connection assemblies, and a driving mechanism for driving the blowing pipe to deflect is arranged on the furnace body.

[0007] Further, as a preference, the two spherical connection components are respectively arranged vertically and horizontally;

[0008] The spherical connection assembly includes a first connection part, a second connection part, an arc plate group 1 and an arc plate group 2, wherein an arc connection body 1 is fixedly provided on the first connection part, and connection discs are fixedly provided on both sides of the arc connection body 1, and an arc connection body 2 is fixedly provided on the second connection part, and circular grooves are opened on both sides of the arc connection body 2, and arc plate group 1 and arc plate group 2 are respectively provided on both sides of the connection disc for sealing and rotation, and the arc plate group 1 and the arc plate group 2 are inserted into the circular grooves and rotate along the circular grooves in a sealed manner.

[0009] Further, as a preference, the arc plate group one is composed of a plurality of arc plates one which are gradually decreased and sealed and slidably arranged, the arc plate group two is composed of a plurality of arc plates two which are gradually increased and sealed and slidably arranged, and the first-level arc plate one and the last-level arc plate one are respectively fixedly connected to the upper parts of the arc connector one and the arc connector two, and the first-level arc plate two and the last-level arc plate two are respectively fixedly connected to the lower parts of the arc connector one and the arc connector two.

[0010] Further, as a preference, the driving mechanism includes a fixed ring, a rotating ring, a pneumatic ring and a lifting ring, wherein the fixed ring is fixedly arranged on the furnace body, the rotating ring is rotatably arranged in the fixed ring, a plurality of support rods are fixedly arranged in a circle on the rotating ring, the pneumatic ring is fixedly connected to the plurality of support rods, and a lifting ring is slidably arranged on the pneumatic ring.

[0011] Further, as a preference, a driving ring is slidably provided on the blowing tube, a spherical groove 1 is fixedly provided on the driving ring, and the driving ring is connected to the lifting ring via a plurality of driving rods;

[0012] The lifting ring is provided with a plurality of spherical grooves 2 fixedly arranged in a circumference;

[0013] Spherical clamping blocks are fixedly arranged at both ends of the driving rod, and the two spherical clamping blocks are respectively clamped into the spherical groove one and the spherical groove two and slide along the spherical groove one and the spherical groove two.

[0014] Further, as a preference, a plurality of pneumatic rods are fixedly arranged in a circle at the bottom of the lifting ring;

[0015] The pneumatic ring is provided with a plurality of air pressure chambers in a circumferential manner, and the air pressure rods slide sealingly along the air pressure chambers.

[0016] Further, as a preference, a pneumatic groove is fixedly provided on the fixed ring, the pneumatic groove and the rotating ring form a sealed sliding cavity, and the pneumatic cavity is connected to an external pneumatic device;

[0017] A gas pressure block is fixedly arranged on the rotating ring, and the gas pressure block slides along the sliding cavity sealingly.

[0018] Further, as a preference, a sealing groove is provided on the fixing ring, the sealing groove and the rotating ring form a sealed air supply cavity, and the air supply cavity is connected to an external air pressure device;

[0019] An air supply channel is provided in the support rod, and the air supply channel passes through the rotating ring and the pneumatic ring and connects the air supply cavity and the air pressure cavity.

[0020] Compared with the prior art, the present invention provides a mixed material spraying device based on the visualization of the material and flow field state, which has the following beneficial effects:

[0021] In the present invention, the flow field state in the furnace body is monitored in real time by a visualization monitoring module, and the controller is used to control the injection system to change the injection angle and strength according to the monitored information, thereby effectively avoiding the formation of injection dead angles and vortices, so that the iron powder in the furnace body can be effectively reduced, thereby improving the smelting efficiency, and the two spherical connecting components arranged vertically and horizontally enable the injection pipe to deflect up and down without dead angles, thereby making the injection surface of the injection pipe wider, and further adjusting the flow field state in real time and accurately according to the smelting needs, thereby effectively improving the uniformity of iron powder reduction, in addition, a driving mechanism is equipped, which uses air pressure to drive the injection pipe to deflect, so that the driving mechanism is not affected by the high temperature in the furnace, that is, the injection pipe can be driven to deflect regardless of the temperature conditions, thereby ensuring precise control of the flow field in the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall process of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 Schematic diagram of the spherical connection component structure in the present invention Figure 1 ;

[0025] Figure 4 Schematic diagram of the spherical connection component structure in the present invention Figure 2 ;

[0026] Figure 5 The structure of the driving mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 6 The structure of the driving mechanism of the present invention is shown in FIG. Figure 2 ;

[0028] In the figure: 1, furnace body; 2, hot air surrounding pipe; 3, main pipe; 4, spherical connection assembly; 41, first connection part; 411, arc connection body 1; 412, connecting disc; 42, second connection part; 421, arc connection body 2; 422, circular clamping groove; 43, arc plate group 1; 44, arc plate group 2; 5, blowing pipe; 51, driving ring; 52, driving rod; 521, spherical clamping block; 6, driving mechanism; 61, fixing ring; 611, pneumatic groove; 62, rotating ring; 612, sealing groove; 621, air pressure block; 63, pneumatic ring; 631, air pressure chamber; 64, lifting ring; 641, spherical groove 2; 642, air pressure rod; 65, support rod; 651, air supply channel. DETAILED DESCRIPTION

[0029] Example: See Figure 1 to Figure 6 In an embodiment of the present invention, a mixed material blowing device based on the visualization of material and flow field state includes a furnace body 1, a feeding module, a blowing system, a visualization monitoring module and a control system, wherein the feeding module is used to transport raw materials into the furnace body 1, the visualization monitoring module uses laser detection technology to detect the flow field state in the furnace body 1, and the control system controls the blowing system to change the blowing angle and strength according to the flow field information in the furnace body 1 monitored by the visualization monitoring module;

[0030] The blowing system includes a hot blast surrounding pipe 2, a main pipe 3, a spherical connection component 4, a blowing pipe 5 and a driving mechanism 6, wherein the hot blast surrounding pipe 2 is installed on the outside of the furnace body 1, and a plurality of main pipes 3 are arranged on the hot blast surrounding pipe 2. The main pipes 3 extend into the inside of the furnace body 1 and are connected to the blowing pipe 5 through two spherical connection components 4. The furnace body 1 is provided with a driving mechanism 6 for driving the blowing pipe 5 to deflect.

[0031] In addition, the spherical connection assembly 4, the blowing pipe 5 and the driving mechanism 6 are all made of high temperature resistant alloy materials.

[0032] During implementation, the feeding module is used to transport raw materials into the furnace body 1, and then the blowing system is used to blow into the furnace body. Then, the visual monitoring module is used to monitor the flow field state in the furnace body 1, and the monitored information is transmitted to the control system. The control system controls the blowing system according to the information monitored by the visual monitoring module, that is, controls the driving mechanism 6 to change the blowing angle of the blowing pipe 5 and the overall blowing strength of the blowing system, and then adjusts the flow field state in the furnace body 1 according to the smelting needs, thereby avoiding the formation of blowing dead corners and vortices in the furnace body 1, so that the iron powder in the furnace body 1 is evenly and effectively reduced, and the smelting efficiency is further improved.

[0033] In this embodiment, Figure 3 and Figure 4 , the two spherical connection components 4 are respectively arranged in vertical and horizontal directions;

[0034] The spherical connection assembly 4 includes a first connection part 41, a second connection part 42, an arc plate group 1 43 and an arc plate group 2 44, wherein an arc connection body 1 411 is fixedly provided on the first connection part 41, and connection disks 412 are fixedly provided on both sides of the arc connection body 1 411, and an arc connection body 2 421 is fixedly provided on the second connection part 42, and circular grooves 422 are opened on both sides of the arc connection body 2 421, and arc plate group 1 43 and arc plate group 2 44 are respectively provided on both sides of the connection disk 412 for sealing and rotation, and the arc plate group 1 43 and arc plate group 2 44 are inserted into the circular grooves 422 and rotate along the circular grooves 422 for sealing.

[0035] During implementation, the two spherical connecting components 4 arranged vertically and horizontally enable the blowing pipe 5 to deflect up, down, left and right, thereby accurately controlling the flow field in the furnace body 1 according to smelting needs, thereby ensuring that the iron powder is effectively and evenly reduced.

[0036] In this embodiment, Figure 3 and Figure 4 The arc plate group 1 43 is composed of a plurality of arc plates 1 which are gradually decreased and sealed and slidably arranged, and the arc plate group 2 44 is composed of a plurality of arc plates 2 which are gradually increased and sealed and slidably arranged, and the first-stage arc plate 1 and the last-stage arc plate 1 are respectively fixedly connected to the upper parts of the arc connector 1 411 and the arc connector 2 421, and the first-stage arc plate 2 and the last-stage arc plate 2 are respectively fixedly connected to the lower parts of the arc connector 1 411 and the arc connector 2 421.

[0037] In particular, a spherical connection assembly 4 is formed by arc plate 1 and arc plate 2 and arc connector 1 411 and arc connector 2 421 which are arranged to slide step by step, so that when the first connection part 41 and the second connection part 42 rotate, the first connection part 41 and the second connection part 42 always maintain a sealed connection state through the sliding of arc plate 1 and arc plate 2, so that when the angle of the blow pipe 5 changes, the blow pipe 5 can effectively spray coal powder into the furnace body.

[0038] In this embodiment, Figure 5 The driving mechanism 6 includes a fixed ring 61, a rotating ring 62, a pneumatic ring 63 and a lifting ring 64, wherein the fixed ring 61 is fixedly arranged on the furnace body 1, the rotating ring 62 is rotatably arranged in the fixed ring 61, a plurality of support rods 65 are fixedly arranged on the rotating ring 62 in a circular shape, the pneumatic ring 63 is fixedly connected to the plurality of support rods 65, and a lifting ring 64 is slidably arranged on the pneumatic ring 63.

[0039] In addition, the fixed ring 61, the rotating ring 62, the pneumatic ring 63, the lifting ring 64 and the support rod 65 are all made of high temperature resistant alloy materials, so that the driving mechanism 6 is not affected by high temperature when driving the blowing tube 5 to deflect.

[0040] In this embodiment, Figure 5 and Figure 6 A driving ring 51 is slidably provided on the blowing tube 5, a spherical groove 1 is fixedly provided on the driving ring 51, and the driving ring 51 is connected to the lifting ring 64 via a plurality of driving rods 52;

[0041] The lifting ring 64 is provided with a plurality of spherical grooves 641 fixedly arranged in a circumference;

[0042] Spherical clamping blocks 521 are fixedly provided at both ends of the driving rod 52 . The two spherical clamping blocks 521 are respectively inserted into the first spherical groove 641 and the second spherical groove 641 and slide along the first spherical groove 641 .

[0043] During implementation, the rotation of the rotating ring 62 drives the pneumatic ring 63 to rotate, and further drives the lifting ring 64 to rotate. The rotation of the lifting ring 64 further drives the blow pipe 5 to deflect left and right through the driving rod 52 and the driving ring 51. The driving ring 51 slides along the blow pipe 5 and the driving rod 52 rotates around the spherical groove 1 and the spherical groove 2 641, so that when the blow pipe 5 deflects, that is, the orientation of the blow pipe 5 changes, the pneumatic ring 63 can drive the blow pipe 5 to deflect in a disk.

[0044] In this embodiment, Figure 5 and Figure 6 The bottom of the lifting ring 64 is fixedly provided with a plurality of gas pressure rods 642 in a circumferential manner;

[0045] The pneumatic ring 63 is provided with a plurality of pneumatic cavities 631 in a circumferential shape, and the pneumatic rods 642 slide sealingly along the pneumatic cavities 631 .

[0046] During implementation, the air pressure rod 642 is driven to slide by air pressure, thereby driving the lifting ring 64 to slide up and down, and driving the blowing tube 5 to deflect up and down.

[0047] In this embodiment, Figure 5 and Figure 6 The fixed ring 61 is provided with a pneumatic groove 611, the pneumatic groove 611 and the rotating ring 62 form a sealed sliding cavity, and the pneumatic cavity is connected to an external pneumatic device;

[0048] A gas pressure block 621 is fixedly disposed on the rotating ring 62 , and the gas pressure block 621 slides along the sliding cavity sealingly.

[0049] During implementation, the air pressure is used to drive the air block 621 to slide along the sliding cavity, thereby driving the rotating ring 62 to rotate along the fixed ring 61, and further driving the pneumatic ring 63 to rotate through the support rod, thereby driving the blowing tube 5 to deflect left and right.

[0050] In this embodiment, Figure 5 and Figure 6 The fixing ring 61 is provided with a sealing groove 612, and the sealing groove 612 and the rotating ring 62 form a sealed air supply cavity, and the air supply cavity is connected to an external air pressure device;

[0051] An air supply channel 651 is defined in the support rod 65 , and the air supply channel 651 passes through the rotating ring 62 and the pneumatic ring 63 and connects the air supply cavity and the air pressure cavity 631 .

[0052] During implementation, air is supplied to the air pressure chamber 631 through the air supply channel 651 arranged in the support rod 65, and an air supply chamber is arranged in the fixed ring 61, so that when the rotating ring 62 rotates, the air pressure equipment can supply air pressure to the air pressure chamber 631.

[0053] To sum up, when the present invention is implemented, the feeding module is used to transport raw materials into the furnace body 1, and then the blowing system is used to blow into the furnace body, and then the flow field state in the furnace body 1 is monitored by the visualization monitoring module, and the blowing system is controlled by the controller to change the blowing angle and strength according to the monitoring information, so as to effectively avoid the formation of blowing dead corners and vortices, so that the iron powder in the furnace body can be effectively reduced, thereby improving the smelting efficiency.

[0054] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mixed material spraying device based on the visual state of materials and flow fields, characterized in that: The invention comprises a furnace body (1), a feeding module, a blowing system, a visual monitoring module and a control system, wherein the feeding module is used to convey raw materials into the furnace body (1), the visual monitoring module uses laser detection technology to detect the flow field state in the furnace body (1), and the control system controls the blowing system to change the blowing angle and strength according to the flow field information in the furnace body (1) monitored by the visual monitoring module; The blowing system comprises a hot blast surrounding pipe (2), a main pipe (3), a spherical connection assembly (4), a blowing pipe (5) and a driving mechanism (6), wherein the hot blast surrounding pipe (2) is installed outside the furnace body (1), a plurality of main pipes (3) are arranged on the hot blast surrounding pipe (2), the main pipes (3) extend into the inside of the furnace body (1) and are connected to the blowing pipe (5) via two spherical connection assemblies (4), and the furnace body (1) is provided with a driving mechanism (6) for driving the blowing pipe (5) to deflect; The two spherical connection components (4) are respectively arranged in a vertical direction and a horizontal direction; The spherical connection assembly (4) comprises a first connection part (41), a second connection part (42), an arc plate group 1 (43) and an arc plate group 2 (44), wherein an arc connection body 1 (411) is fixedly arranged on the first connection part (41), and connection disks (412) are fixedly arranged on both sides of the arc connection body 1 (411), and an arc connection body 2 (421) is fixedly arranged on the second connection part (42), and circular grooves (422) are provided on both sides of the arc connection body 2 (421), and arc plate group 1 (43) and arc plate group 2 (44) are respectively provided on both sides of the connection disk (412) for sealing and rotation, and the arc plate group 1 (43) and the arc plate group 2 (44) are inserted into the circular grooves (422) and seal and rotate along the circular grooves (422); The arc plate group 1 (43) is composed of a plurality of arc plates 1 which are gradually reduced and sealed and slidably arranged, and the arc plate group 2 (44) is composed of a plurality of arc plates 2 which are gradually increased and sealed and slidably arranged, and the first-stage arc plate 1 and the last-stage arc plate 1 are respectively fixedly connected to the upper parts of the arc connector 1 (411) and the arc connector 2 (421), and the first-stage arc plate 2 and the last-stage arc plate 2 are respectively fixedly connected to the lower parts of the arc connector 1 (411) and the arc connector 2 (421); The driving mechanism (6) comprises a fixed ring (61), a rotating ring (62), a pneumatic ring (63) and a lifting ring (64), wherein the fixed ring (61) is fixedly arranged on the furnace body (1), the rotating ring (62) is rotatably arranged in the fixed ring (61), a plurality of support rods (65) are fixedly arranged on the rotating ring (62) in a circular shape, the pneumatic ring (63) is fixedly connected to the plurality of support rods (65), and a lifting ring (64) is slidably arranged on the pneumatic ring (63).

2. A mixed material spraying device based on the visualization of material and flow field state according to claim 1, characterized in that: A driving ring (51) is slidably provided on the blowing tube (5), a spherical groove (1) is fixedly provided on the driving ring (51), and the driving ring (51) is connected to the lifting ring (64) via a plurality of driving rods (52); The lifting ring (64) is provided with a plurality of spherical grooves (641) fixedly arranged in a circumferential manner; Spherical clamping blocks (521) are fixedly provided at both ends of the driving rod (52), and the two spherical clamping blocks (521) are respectively clamped into the first spherical groove and the second spherical groove (641) and slide along the first spherical groove and the second spherical groove (641).

3. A mixed material spraying device based on the visualization of material and flow field state according to claim 1, characterized in that: A plurality of gas pressure rods (642) are fixedly arranged in a circle at the bottom of the lifting ring (64); The pneumatic ring (63) is provided with a plurality of pneumatic cavities (631) in a circumferential manner, and the pneumatic rod (642) slides sealingly along the pneumatic cavities (631).

4. A mixed material spraying device based on the visualization of material and flow field state according to claim 3, characterized in that: The fixed ring (61) is fixedly provided with a pneumatic groove (611), the pneumatic groove (611) and the rotating ring (62) form a sealed sliding cavity, and the pneumatic cavity is connected to an external pneumatic device; An air pressure block (621) is fixedly arranged on the rotating ring (62), and the air pressure block (621) slides sealingly along the sliding cavity.

5. The mixed material spraying device based on the visualization of material and flow field state according to claim 3, characterized in that: The fixed ring (61) is provided with a sealing groove (612), the sealing groove (612) and the rotating ring (62) form a sealed air supply cavity, and the air supply cavity is connected to an external air pressure device; An air supply channel (651) is provided in the support rod (65), and the air supply channel (651) passes through the rotating ring (62) and the pneumatic ring (63) and connects the air supply cavity and the air pressure cavity (631).

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