Online rapid detection device for silicon content of molten iron of blast furnace

Abstract

The invention discloses a blast furnace molten iron silicon content on-line rapid detection device, and relates to the technical field of blast furnace molten iron detection.The blast furnace molten iron silicon content on-line rapid detection device comprises a bottom plate and a spectrograph, the upper side of the bottom plate is fixedly connected with a fixing frame, the lower side of the fixing frame is fixedly connected with a first electric push rod, and the lower end of the first electric push rod is fixedly connected with a laser detection head; a connecting wire is arranged between the spectrograph and the laser detection head, and a through hole is formed in the upper side of the bottom plate. According to the online rapid detection device for the silicon content in the blast furnace molten iron, the bottom plate, the laser detection head and the spectrograph are arranged, so that the silicon content in the blast furnace molten iron can be conveniently detected, and the sample containing box, the bottom box, the rotating rod, the rotating disc, the dispersing plate, the gas box, the first piston plate and the second sliding plate are arranged; the sample containing box can be conveniently controlled to descend before detection, a dispersion plate at the bottom can be conveniently controlled to rotate, molten iron can be conveniently stirred, silicon-containing substances in the molten iron can be uniformly distributed during detection, and the influence of non-uniform distribution on the detection precision is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of blast furnace molten iron detection, and in particular to an online rapid detection device for silicon content in blast furnace molten iron. Background Art

[0002] Blast furnace hot metal refers to the liquid iron produced by the reduction reaction of iron ore during the blast furnace ironmaking process. The silicon (Si) content in blast furnace hot metal is a key indicator in the ironmaking process, directly affecting hot metal quality, furnace stability, and subsequent steelmaking processes. Therefore, silicon content testing is essential.

[0003] After searching, the Chinese patent application number "CN201910304147.2" is specifically an online rapid detection device for the silicon content of blast furnace molten iron, which includes main components such as a pulse laser, a spectrometer and a photodetector, a timing controller, a coaxial acquisition optical path, a molten iron online sampling device and a computer. It uses laser-induced breakdown spectroscopy technology to perform online rapid detection of the silicon content in molten iron. Its characteristics are no need for sample preparation, fast analysis speed and high analysis frequency.

[0004] The above patent detects the silicon content in blast furnace molten iron using laser-induced breakdown spectroscopy technology. Before the test, the molten iron in the molten iron pool is sampled by a rotating sample spoon to facilitate the subsequent laser-induced breakdown spectroscopy test. Since the impurity density in the upper layer of the molten iron is low and mostly accumulates on the surface, direct sampling causes the silicon-containing substances in the molten iron in the sample to be unevenly distributed, affecting the detection accuracy. Since the silicon content distribution of molten iron at different depths in the molten iron pool is different, direct sampling cannot detect the silicon content of molten iron at different depths. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides an online rapid detection device for silicon content in blast furnace molten iron, which solves the problem that impurities floating on the surface of molten iron during molten iron sampling cause uneven distribution of silicon in molten iron and affect the detection results.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The cam is provided with a plurality of control plates, the plurality of control plates are connected to the plurality of control plates, and the plurality of control plates are connected to the plurality of control plates respectively. The plurality of control plates are connected to the plurality of control plates respectively.

[0008] Preferably, the holding component includes a sample holding box, which is arranged on the lower side of the lifting plate, and the uniform component includes a bottom box, which is arranged on the lower side of the sample holding box, and the front and rear sides of the bottom box are fixedly connected with an L-shaped plate, and the L-shaped plate is fixedly connected to the lifting plate. The lower side of the bottom box is rotatably connected with a rotating rod, and the lower end of the rotating rod is fixedly connected with a turntable, and a plurality of slide grooves are provided on the lower side of the turntable, and the inner sides of the plurality of slide grooves are slidably connected with sliders, and the lower sides of the plurality of sliders are fixedly connected with a dispersion Plate, a piston plate 2 is provided on the inner side of the bottom box, the upper end of the rotating rod passes through the inner side of the bottom box and is fixedly connected to a gear on the outer side, the outer side of the piston plate 2 is fixedly connected to a toothed plate meshing with the gear, the left side of the bottom box is fixedly connected to a conveying cavity communicated with the bottom box, the left side of the vertical plate is fixedly connected to an air box, a piston plate 1 is provided on the inner side of the air box, the left side of the lifting block is fixedly connected to a side block, a lifting rod is fixedly connected between the side block and the piston plate 1, and a conveying pipe is fixedly connected between the air box and the conveying cavity.

[0009] Preferably, the outer sides of the plurality of dispersion plates are fixedly connected with a rotating block 1, the outer side of the rotating block 1 is rotatably connected with an inclined plate, the outer side of the upper end of the inclined plate is rotatably connected with a rotating block 2, the upper side of the rotating block 2 is fixedly connected with a control disk, the upper side of the control disk is fixedly connected with a reciprocating rod, and the upper end of the reciprocating rod passes through the upper side of the rotating disk and the rotating rod.

[0010] Preferably, the right side of the piston plate 2 is fixedly connected to the movable plate 2, the lower side of the movable plate 2 is fixedly connected to a plurality of abutment blocks, the upper end of the reciprocating rod is provided with an arc block, the arc block abuts against the abutment block, the outer side of the reciprocating rod is fixedly connected to a reciprocating disk, the upper end of the rotating rod is fixedly connected to a fixed disk, and a spring 2 is fixedly connected between the fixed disk and the reciprocating disk.

[0011] Preferably, a feed port is provided on the front side of the sample holding box, a telescopic groove is provided on the upper inner wall of the feed port, a baffle plate is provided on the inner side of the telescopic groove, two guide plates are fixedly connected to the front side of the sample holding box, the outer sides of the two guide plates are slidably connected to guide blocks, the front sides of the guide blocks are fixedly connected to a movable plate 1, a connecting block is fixedly connected between the movable plate 1 and the baffle plate, the upper side of the guide block is fixedly connected to a movable rod, the upper side of the movable rod is fixedly connected to a control plate, the front side of the sample holding box is fixedly connected to a fixed block, a spring 1 is fixedly connected between the fixed block and the control plate, the left side of the control plate is fixedly connected to a push plate, the upper side of the bottom plate is fixedly connected to a mounting cylinder, and a contact plate is provided on the upper side of the mounting cylinder.

[0012] Preferably, a U-shaped plate is fixedly connected to the lower side of the lifting plate and the front and rear sides of the sample holding box, a card plate is provided on the inner side of the U-shaped plate, the card plate is fixedly connected to the sample holding box, a handle is fixedly connected to the right side of the sample holding box, and the card plate is slidably connected to the U-shaped plate.

[0013] Preferably, mounting holes are provided on the outer sides of the mounting cylinder and the contact plate, and a latch is provided between the mounting cylinder and the contact plate.

[0014] Beneficial effects

[0015] The present invention provides an online rapid detection device for silicon content in molten iron of a blast furnace. Compared with the prior art, it has the following advantages:

[0016] (1) The on-line rapid detection device for silicon content in blast furnace molten iron is convenient for detecting silicon content in blast furnace molten iron by being provided with a bottom plate, a laser detection head, and a spectrometer. Furthermore, the sample holding box, the bottom box, the rotating rod, the rotating disk, the dispersion plate, the air box, the piston plate 1 and the slide plate 2 are convenient for controlling the sample holding box to descend and the dispersion plate at the bottom to rotate before detection, so as to facilitate stirring of the molten iron, so that the silicon content in the molten iron is evenly distributed during detection, thereby avoiding uneven distribution affecting the detection accuracy.

[0017] (2) The online rapid detection device for silicon content in molten iron of a blast furnace is provided with a sample component box, a feed port, a material baffle plate, a control plate, a back plate, a contact plate, a mounting tube, a mounting hole and a lifting plate, so as to facilitate the control of the sample holding box to be lowered into the molten iron pool. By controlling the height between the contact plate and the back plate, it is convenient to sample the molten iron at multiple deep layers and to facilitate the layered detection of the silicon content in the molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall three-dimensional structural diagram of the present invention;

[0019] Figure 23D diagram of the sampling unit of the present invention;

[0020] Figure 3 It is a three-dimensional structural diagram of the holding component in the present invention;

[0021] Figure 4 It is a cross-sectional perspective structural diagram of the holding component in the present invention;

[0022] Figure 5 It is a partial three-dimensional structural diagram of the holding component in the present invention;

[0023] Figure 6 A three-dimensional structural diagram of the cleaning component of the present invention;

[0024] Figure 7 A partial three-dimensional structural diagram of the cleaning component of the present invention;

[0025] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 A partially cutaway perspective structural diagram of a cleaning assembly according to the present invention;

[0027] Figure 10 for Figure 9 Enlarged view of point B in the middle.

[0028] In the figure: 1, bottom plate; 2, perforation; 3, fixing frame; 4, electric push rod 1; 5, laser detection head; 7, spectrometer; 8, connecting line; 9, sampling unit; 91, vertical plate; 92, lifting slot; 93, lifting block; 94, top block; 95, electric push rod 2; 96, lifting plate; 97, detection hole; 98, holding component; 99, uniform component; 910, mounting cylinder; 911, contact plate; 912, mounting hole; 913, latch; 981, U-shaped plate; 982, clamping plate; 983, sample holding box; 984, pull handle; 985, feed port; 986, baffle plate; 987, guide plate; 988, guide block; 989, moving plate 1; 9810, connecting block; 9811, moving rod; 9812, control board; 98 13. Abutment plate; 9814. Spring 1; 9815. Fixed block; 9816. Telescopic slot; 991. Side block; 992. Lifting rod; 993. Piston plate 1; 994. Air box; 995. Delivery pipe; 996. Delivery cavity; 997. L-shaped plate; 998. Bottom box; 999. Rotating rod; 9910. Turntable; 9911. Slide; 9912. Slider; 9913. Dispersion plate; 9914. Rotating block 1; 9915. Inclined plate; 9916. Rotating block 2; 9917. Control plate; 9918. Reciprocating rod; 9919. Gear; 9920. Tooth plate; 9921. Fixed plate; 9922. Spring 2; 9923. Reciprocating plate; 9924. Abutment block; 9925. Moving plate 2; 9926. Piston plate 2. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-10The present invention provides a technical solution: an online rapid detection device for silicon content in blast furnace molten iron, comprising a bottom plate 1 and a spectrometer 7, a fixing frame 3 is fixedly connected to the upper side of the bottom plate 1, an electric push rod 4 is fixedly connected to the lower side of the fixing frame 3, a laser detection head 5 is fixedly connected to the lower end of the electric push rod 4, a connecting line 8 is provided between the spectrometer 7 and the laser detection head 5, a through hole 2 is provided on the upper side of the bottom plate 1, a sampling unit 9 for sampling molten iron in the blast furnace is provided on the upper side of the bottom plate 1, the sampling unit 9 comprises two vertical plates 91, the two vertical plates 91 are fixedly connected to the upper side of the bottom plate 1 and are located on the left and right sides of the through hole 2, a lifting groove 92 is provided on the outer side of the left and right vertical plates 91, a lifting block 93 is slidably connected to the inner side of the lifting groove 92, a lifting plate 96 is fixedly connected between the lifting blocks 93 on the left and right sides, a holding component 98 for holding molten iron is provided on the lower side of the lifting plate 96, and a lifting component 98 for holding molten iron is provided on the lower side of the lifting plate 96. A detection hole 97 is provided in the middle of the descending plate 96, and the holding component 98 is provided with a uniform component 99 for uniformly distributing the molten iron during sampling. A top block 94 is fixedly connected to the upper side of the vertical plate 91, and an electric push rod 2 95 is fixedly connected between the top block 94 and the lifting block 93. When the silicon content in the molten iron is detected, the electric push rod 1 4 is controlled to drive the laser detection head 5 to descend, so that the spectrometer 7 can analyze the silicon content. Before the detection, the bottom plate 1 is installed above the molten iron pool to facilitate online sampling of the molten iron. During sampling, the electric push rod 2 95 is controlled to drive the lifting block 93 to descend, and the lifting block 93 drives the lifting plate 96 to descend, and the lifting plate 96 drives the sample holding box 983 to descend, and passes through the bottom plate 1 through the perforation 2, so that the sample holding box 983 can be conveniently lowered into the molten iron pool for sampling operations, wherein the spectrometer 7 is located outside the molten iron pool to prevent the high temperature of the molten iron pool from damaging the spectrometer 7.

[0031] The holding component 98 includes a sample holding box 983, which is arranged on the lower side of the lifting plate 96. The uniform component 99 includes a bottom box 998, which is arranged on the lower side of the sample holding box 983. The front and rear sides of the bottom box 998 are fixedly connected with an L-shaped plate 997, and the L-shaped plate 997 is fixedly connected to the lifting plate 96. The lower side of the bottom box 998 is rotatably connected with a rotating rod 999, and the lower end of the rotating rod 999 is fixedly connected with a turntable 9910. The lower side of the turntable 9910 is provided with a plurality of slide grooves 9911, and the inner sides of the plurality of slide grooves 9911 are all slidably connected with sliders. 9912, the lower sides of the multiple sliders 9912 are fixedly connected to the dispersion plate 9913, the inner side of the bottom box 998 is provided with a piston plate 9926, the upper end of the rotating rod 999 passes through the inner side of the bottom box 998 and is fixedly connected to the outer side with a gear 9919, the outer side of the piston plate 9926 is fixedly connected to a gear plate 9920 meshing with the gear 9919, the left side of the bottom box 998 is fixedly connected to the conveying cavity 996 connected to the bottom box 998, the left side of the vertical plate 91 is fixedly connected to the air box 994, the inner side of the air box 994 is provided with a piston plate 993, and the lifting block 93 The left side of the device is fixedly connected to a side block 991, a lifting rod 992 is fixedly connected between the side block 991 and the piston plate 1 993, and a delivery pipe 995 is fixedly connected between the air box 994 and the delivery cavity 996. When sampling, the sample holding box 983 is controlled to descend, the sample holding box 983 drives the bottom box 998 to descend, and the bottom box 998 drives the dispersion plate 9913 to descend. At the same time, the lifting block 93 drives the side block 991 to descend, the side block 991 drives the lifting rod 992 to descend, the lifting rod 992 drives the piston plate 1 993 to descend, and the piston plate 1 993 releases the gas in the air box 994. The gas is pushed out of the body and transported to the transport chamber 996 through the transport pipe 995. The gas is then transported to the bottom box 998, pushing the piston plate 2 9926 to move right. The piston plate 2 9926 drives the gear plate 9920 to move. As the gear plate 9920 and the gear 9919 rotate, the gear 9919 drives the rotating rod 999 to rotate. The rotating rod 999 drives the turntable 9910 to rotate. The turntable 9910 drives the dispersion plate 9913 to rotate, making it convenient for the dispersion plate 9913 to stir the molten iron, so that the silicon-containing substance in the molten iron is evenly distributed during sampling, avoiding uneven distribution affecting the detection accuracy.

[0032] The outer sides of the plurality of dispersion plates 9913 are all fixedly connected with a rotating block 1 9914, the outer side of the rotating block 1 9914 is rotatably connected with an inclined plate 9915, the outer side of the upper end of the inclined plate 9915 is rotatably connected with a rotating block 2 9916, the upper side of the rotating block 2 9916 is fixedly connected with a control disk 9917, the upper side of the control disk 9917 is fixedly connected with a reciprocating rod 9918, the upper end of the reciprocating rod 9918 passes through the upper side of the turntable 9910 and the rotating rod 999, the right side of the piston plate 2 9926 is fixedly connected with a movable plate 2 9925, the lower side of the movable plate 2 9925 is fixedly connected with a plurality of abutting blocks 9924, the upper end of the reciprocating rod 9918 is provided with an arc block, the arc block abuts against the abutting block 9924, the outer side of the reciprocating rod 9918 is fixedly connected with Reciprocating disk 9923, the upper end of the rotating rod 999 is fixedly connected with a fixed disk 9921, and a spring 2 9922 is fixedly connected between the fixed disk 9921 and the reciprocating disk 9923. The piston plate 2 9926 drives the multiple blocks 9924 on the movable plate 2 9925 to move. Since the blocks 9924 are in abutment against the reciprocating rod 9918, under the action of the spring 2 9922, the reciprocating rod 9918 is convenient for moving up and down repeatedly. The reciprocating rod 9918 drives the control disk 9917 to move up and down repeatedly, and the control disk 9917 drives the multiple inclined plates 9915 to rotate. Since the multiple inclined plates 9915 are distributed in a circular array, the inclined plates 9915 drive the multiple dispersion plates 9913 to move repeatedly, so that the uniformity of the molten iron distribution is increased, which is helpful for the subsequent detection.

[0033] The front side of the sample holding box 983 is provided with a feed port 985, and the upper inner wall of the feed port 985 is provided with a telescopic groove 9816. The inner side of the telescopic groove 9816 is provided with a baffle plate 986. The front side of the sample holding box 983 is fixedly connected to two guide plates 987. The outer sides of the two guide plates 987 are slidably connected to guide blocks 988. The front side of the guide block 988 is fixedly connected to a movable plate 989. A connecting block 9810 is fixedly connected between the movable plate 989 and the baffle plate 986. The upper side of the guide block 988 is fixedly connected to a movable rod 9811. The upper side of the rod 9811 is fixedly connected to the control board 9812, the front side of the sample holding box 983 is fixedly connected to the fixing block 9815, a spring 9814 is fixedly connected between the fixing block 9815 and the control board 9812, the left side of the control board 9812 is fixedly connected to the back plate 9813, the upper side of the bottom plate 1 is fixedly connected to the mounting cylinder 910, the upper side of the mounting cylinder 910 is provided with a contact plate 911, the outer sides of the mounting cylinder 910 and the contact plate 911 are provided with mounting holes 912, and a latch 91 is provided between the mounting cylinder 910 and the contact plate 911. 3. When sampling, the sample holding box 983 is controlled to descend, and the sample holding box 983 drives the abutment plate 9813 to descend. When the abutment plate 9813 contacts the contact plate 911, the sample holding box 983 is controlled to descend. Due to the position limit of the contact plate 911, the abutment plate 9813 drives the control plate 9812 to rise. The control plate 9812 drives the moving rod 9811 to rise. The moving rod 9811 drives the guide block 988 to rise. The guide block 988 drives the moving plate 1 989 to rise. The moving plate 1 989 drives the material blocking plate 986 on the connecting block 9810. Since the sample holding box 983 is located in the molten iron, the molten iron submerges the feed port 985. At this time, the baffle plate 986 moves to the telescopic groove 9816, and the molten iron enters the sample holding box 983 (the molten iron does not contact the spring 9814), which makes it convenient to sample the molten iron. When it is necessary to sample molten iron at different depths, the pin 913 is pulled out to control the movement of the contact plate 911. Under the action of the mounting hole 912, the height between the contact plate 911 and the abutment plate 9813 is conveniently controlled to control the opening of the baffle plate 986, which facilitates the detection of molten iron at different depths.

[0034] A U-shaped plate 981 is fixedly connected to the lower side of the lifting plate 96 and the front and rear sides of the sample holding box 983. A clamping plate 982 is provided on the inner side of the U-shaped plate 981. The clamping plate 982 is fixedly connected to the sample holding box 983. A handle 984 is fixedly connected to the right side of the sample holding box 983. The clamping plate 982 is slidingly connected to the U-shaped plate 981. By pulling the handle 984, the sample holding box 983 can be easily disassembled and the tested molten iron can be discharged, which is convenient for the next test.

[0035] Working principle: When in use, first install the bottom plate 1 on the molten iron pool, then control the electric push rod 2 95 to drive the lifting block 93 to descend, the lifting block 93 drives the lifting plate 96 to descend, and the lifting plate 96 drives the sample holding box 983 to descend. Under the action of the perforation 2, it is convenient for the sample holding box 983 to move into the molten iron pool. During the descent, the lifting block 93 drives the side block 991 to descend. Under the action of the lifting rod 992, the piston plate 1 993, the gas box 994, the delivery pipe 995, and the delivery cavity 996, the gas enters the bottom box 998 and pushes the piston plate 2 9926 to move. Under the action of the tooth plate 9920, the gear 9919, the rotating rod 999, and the turntable 9910, the multiple dispersion plates 9913 are controlled to rotate, which is convenient for the distribution. The dispersion plate 9913 stirs the molten iron, which facilitates the uniform distribution of silicon-containing substances in the molten iron during sampling, and facilitates subsequent testing. At the same time, under the action of the movable plate 2 9925, the stop block 9924, the reciprocating rod 9918, the control disk 9917, and the inclined plate 9915, the dispersion plate 9913 is controlled to move back and forth horizontally to increase the dispersion effect. When sampling, the sample holding box 983 drives the stop plate 9813 to contact the contact plate 911, and continues to control the sample holding box 983 to descend, so that the baffle plate 986 rises, so that the molten iron enters the sample holding box 983 through the feed port 985. Through the mounting hole 912 and the pin 913, the distance between the stop plate 9813 and the contact plate 911 is conveniently controlled, so that the sampling of molten iron at different depths is convenient.

[0036] During detection, the electric push rod 4 is controlled to drive the laser detection head 5 to descend, and the silicon content in the molten iron is conveniently detected through the spectrometer 7 and the detection hole 97.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An online rapid detection device for silicon content in molten iron of a blast furnace, comprising a base plate (1) and a spectrometer (7), wherein a fixing frame (3) is fixedly connected to the upper side of the base plate (1), an electric push rod (4) is fixedly connected to the lower side of the fixing frame (3), a laser detection head (5) is fixedly connected to the lower end of the electric push rod (4), a connecting line (8) is provided between the spectrometer (7) and the laser detection head (5), and the device is characterized in that: A perforation (2) is provided on the upper side of the bottom plate (1), and a sampling unit (9) for sampling molten iron in a blast furnace is provided on the upper side of the bottom plate (1). The sampling unit (9) comprises two vertical plates (91), and the two vertical plates (91) are fixedly connected to the upper side of the bottom plate (1) and are located on the left and right sides of the perforation (2). A lifting groove (92) is provided on the outer side of the vertical plates (91) on the left and right sides, and a lifting block (93) is slidably connected to the inner side of the lifting groove (92). A lifting plate (96) is fixedly connected between the lifting blocks (93), a holding component (98) for holding molten iron is provided on the lower side of the lifting plate (96), a detection hole (97) is provided in the middle of the lifting plate (96), and a uniform component (99) for uniformly distributing the molten iron during sampling is provided on the holding component (98), a top block (94) is fixedly connected to the upper side of the vertical plate (91), and an electric push rod (95) is fixedly connected between the top block (94) and the lifting block (93).

2. The online rapid detection device for silicon content in molten iron of a blast furnace according to claim 1, characterized in that: The holding component (98) includes a sample holding box (983), and the sample holding box (983) is arranged on the lower side of the lifting plate (96). The uniform component (99) includes a bottom box (998), and the bottom box (998) is arranged on the lower side of the sample holding box (983). The front and rear sides of the bottom box (998) are fixedly connected with an L-shaped plate (997), and the L-shaped plate (997) is fixedly connected to the lifting plate (96). The lower side of the bottom box (998) is rotatably connected with a rotating rod (999), and the lower end of the rotating rod (999) is fixedly connected with a turntable (9910). The lower side of the turntable (9910) is provided with a plurality of slide grooves (9911), and the inner sides of the plurality of slide grooves (9911) are slidably connected with sliders (9912), and the lower sides of the plurality of sliders (9912) are fixedly connected with a dispersion plate (9913). A piston plate 2 (9926) is provided on the inner side of the box (998), the upper end of the rotating rod (999) passes through the inner side of the bottom box (998) and is fixedly connected to a gear (9919) on the outer side, the outer side of the piston plate 2 (9926) is fixedly connected to a gear plate (9920) meshing with the gear (9919), the left side of the bottom box (998) is fixedly connected to a conveying cavity (996) communicating with the bottom box (998), the left side of the vertical plate (91) is fixedly connected to an air box (994), the inner side of the air box (994) is provided with a piston plate 1 (993), the left side of the lifting block (93) is fixedly connected to a side block (991), a lifting rod (992) is fixedly connected between the side block (991) and the piston plate 1 (993), and a conveying pipe (995) is fixedly connected between the air box (994) and the conveying cavity (996).

3. The online rapid detection device for silicon content in molten iron of a blast furnace according to claim 2, characterized in that: The outer sides of the plurality of dispersion plates (9913) are all fixedly connected to a rotating block 1 (9914), the outer side of the rotating block 1 (9914) is rotatably connected to an inclined plate (9915), the outer side of the upper end of the inclined plate (9915) is rotatably connected to a rotating block 2 (9916), the upper side of the rotating block 2 (9916) is fixedly connected to a control disk (9917), the upper side of the control disk (9917) is fixedly connected to a reciprocating rod (9918), and the upper end of the reciprocating rod (9918) passes through the upper side of the rotating disk (9910) and the rotating rod (999).

4. The device for online rapid detection of silicon content in molten iron of a blast furnace according to claim 3, characterized in that: The right side of the piston plate 2 (9926) is fixedly connected to the movable plate 2 (9925), and the lower side of the movable plate 2 (9925) is fixedly connected to multiple abutment blocks (9924). The upper end of the reciprocating rod (9918) is provided with an arc block, and the arc block abuts against the abutment block (9924). The outer side of the reciprocating rod (9918) is fixedly connected to a reciprocating disk (9923). The upper end of the rotating rod (999) is fixedly connected to a fixed disk (9921), and a spring 2 (9922) is fixedly connected between the fixed disk (9921) and the reciprocating disk (9923).

5. The online rapid detection device for silicon content in molten iron of a blast furnace according to claim 2, characterized in that: The front side of the sample holding box (983) is provided with a feed port (985), the upper inner wall of the feed port (985) is provided with a telescopic groove (9816), the inner side of the telescopic groove (9816) is provided with a material blocking plate (986), the front side of the sample holding box (983) is fixedly connected with two guide plates (987), the outer sides of the two guide plates (987) are slidably connected with guide blocks (988), the front side of the guide blocks (988) is fixedly connected with a movable plate (989), and a connecting block (9810) is fixedly connected between the movable plate (989) and the material blocking plate (986). The upper side of the guide block (988) is fixedly connected to a moving rod (9811), the upper side of the moving rod (9811) is fixedly connected to a control panel (9812), the front side of the sample holding box (983) is fixedly connected to a fixed block (9815), a spring 1 (9814) is fixedly connected between the fixed block (9815) and the control panel (9812), the left side of the control panel (9812) is fixedly connected to a stop plate (9813), the upper side of the bottom plate (1) is fixedly connected to a mounting tube (910), and a contact plate (911) is provided on the upper side of the mounting tube (910).

6. The device for online rapid detection of silicon content in molten iron of a blast furnace according to claim 2, characterized in that: A U-shaped plate (981) is fixedly connected to the lower side of the lifting plate (96) and the front and rear sides of the sample holding box (983). A clamping plate (982) is provided on the inner side of the U-shaped plate (981). The clamping plate (982) is fixedly connected to the sample holding box (983). A handle (984) is fixedly connected to the right side of the sample holding box (983). The clamping plate (982) is slidably connected to the U-shaped plate (981).

7. The online rapid detection device for silicon content in molten iron of a blast furnace according to claim 5, characterized in that: The outer sides of the installation tube (910) and the contact plate (911) are both provided with installation holes (912), and a latch (913) is provided between the installation tube (910) and the contact plate (911).

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