A furnace end with real-time oxygen flow regulation function and a carbon sulfur instrument containing the same

Abstract

The application discloses a furnace head with a function of real-time adjustment of oxygen blowing flow and a carbon and sulfur instrument containing the same, relates to the technical field of carbon and sulfur instrument equipment, and comprises a furnace body, a furnace head part is arranged in the furnace body, a chamber is formed in the furnace body, a cover body is arranged at the top end of the inner wall of the chamber, a gas analysis pipe is arranged on the side wall of the cover body, a filter screen is further arranged on the inner side of the cover body, a crucible is arranged at the middle position of the bottom end of the chamber, and a combustion pipe is arranged on the inner wall of the cover body. Pure oxygen is delivered inwards through an oxygen blowing pipe, the analyzed gas after combustion is filtered to remove dust through an opening and the filter screen, then enters an infrared detection chamber through the gas analysis pipe, so that the concentrations of carbon dioxide and sulfur dioxide are detected, the content of carbon and sulfur in the sample is obtained, the outlet pressure of the analyzed gas is adjusted through an adjusting mechanism, the airflow speed entering the combustion chamber is uniform through an auxiliary mechanism, and the sample is prevented from splashing into the cover body.

Description

Technical Field

[0001] This invention relates to the field of carbon-sulfur meter equipment technology, and more specifically, to a furnace head with real-time adjustment of oxygen blowing flow and a carbon-sulfur meter containing the furnace head. Background Technology

[0002] Carbon and sulfur analyzers are key equipment in the field of modern industrial materials analysis, widely used in industries such as metallurgy, casting, materials, geology, petrochemicals, and new energy. They are used to accurately determine the carbon and sulfur content in various solid samples. The analyzer works by placing the sample in a high-frequency induction furnace and burning it at high temperature in an oxygen-rich environment, converting the carbon and sulfur elements in the sample into carbon dioxide and sulfur dioxide gases, respectively. Then, by utilizing the characteristic absorption of infrared radiation by the gases at specific infrared wavelengths, and based on the Lambert-Beer law, the analyzer measures the change in light intensity after the gases absorb the radiation. After photoelectric conversion, signal amplification, and data processing, the percentage content of carbon and sulfur in the sample is finally calculated.

[0003] Since the furnace head generally adopts a vertical oxygen blowing design, that is, oxygen is blown vertically from above the crucible to the sample surface, improper oxygen blowing flow can lead to abnormal combustion reaction. If the flow is too small, the oxygen supply will be insufficient. Conversely, if the flow is too large, the high-speed oxygen flow may cause a violent impact on the sample surface, resulting in sample splashing. Therefore, we provide a furnace head with real-time adjustment of oxygen blowing flow and a carbon-sulfur analyzer containing the furnace head. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a furnace head with real-time oxygen flow rate adjustment function and a carbon-sulfur meter containing the furnace head.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a furnace body, a furnace head disposed within the furnace body, a chamber formed within the furnace body, a cover disposed at the top of the inner wall of the chamber, a gas separation pipe disposed on the side wall of the cover, a filter screen disposed inside the cover, a crucible disposed at the middle of the bottom end of the chamber, a combustion pipe disposed on the inner wall of the cover, and an adjustment mechanism disposed within the cover for adjusting the oxygen blowing flow rate.

[0006] Preferably, the adjustment mechanism includes a support member disposed inside the hood, an auxiliary member disposed at the bottom of the furnace head, the support member and the auxiliary member cooperating with each other, a fixing member disposed inside the hood, a sliding member disposed inside the fixing member, and one end of the sliding member disposed on the bottom end face of the support member.

[0007] Preferably, the support member includes an annular edge disposed within the cover body, a circular plate disposed within the annular edge, an opening circumferentially disposed within the circular plate, a through-hole disposed in the middle of the circular plate, a vertical groove circumferentially disposed within the inner wall of the through-hole, an annular groove disposed within the through-hole, the vertical groove correspondingly communicating with the annular groove, and the annular groove being recessed downward to form a retaining groove.

[0008] Preferably, the auxiliary component includes an oxygen blowing pipe disposed at the bottom of the furnace head, and a locking block is disposed circumferentially on the outer wall of the oxygen blowing pipe, the locking block correspondingly abutting in the locking groove.

[0009] Preferably, the fixing member includes a fixing plate disposed inside the cover body, the fixing plate is recessed inward to form a through groove, an annular strip is disposed in the through groove, a connecting strip is disposed circumferentially on the inner wall of the annular strip, a sleeve is disposed between multiple sets of the connecting strips, an arc-shaped groove is formed in the sleeve, a positioning block is disposed on the outer wall of the oxygen blowing pipe, and the positioning block is correspondingly slidably connected in the arc-shaped groove.

[0010] Preferably, the sliding member includes a limiting groove on the upper end face of the fixed plate, and electric push rods are symmetrically arranged in the limiting groove, with the output end of the electric push rods located on the lower end face of the annular edge.

[0011] Preferably, the system further includes an auxiliary mechanism, which includes an offset component disposed in the through groove, a limiting component disposed in the connecting strip, the offset component and the limiting component cooperating with each other, a rotating component disposed at the bottom end of the offset component, and a locking component disposed in the fixing plate, the rotating component and the locking component cooperating with each other.

[0012] Preferably, the offset component includes a circumferentially arranged sliding groove at the bottom of the through groove, and a corresponding sliding plate is arranged in the sliding groove. Adjacent sets of sliding plates abut against each other through inclined surfaces, and the sleeve is arranged above the sliding plate.

[0013] Preferably, the limiting member includes a sliding opening provided in the connecting strip, and a sliding rod is provided in the sliding opening and the sliding groove, and the sliding rod is provided on the outer wall of the sliding plate.

[0014] Preferably, the rotating component includes an arc-shaped opening circumferentially disposed on the fixed plate, the annular strip is provided with a connecting part at the arc-shaped opening, an annular plate is provided at the bottom end of multiple sets of the connecting parts, a collar is provided at the bottom end of the annular plate, multiple sets of curved grooves are provided on the outer wall of the collar, the combustion tube is disposed at the bottom end of the fixed plate, and the collar is disposed inside the combustion tube.

[0015] Preferably, the locking component includes an adjustment platform disposed inside the combustion tube. The adjustment platform contains an adjustment cover one and an adjustment cover two, which cooperate with each other. The diameter of adjustment cover one is larger than that of adjustment cover two. A circumferential notch is provided at the bottom end of the adjustment platform. A locking part one is provided inside adjustment cover one, and an insertion block part one is provided at the end of adjustment cover one's inner side away from the locking part one. A locking part two is provided inside adjustment cover two, and an insertion block part two is provided at the end of adjustment cover two's inner side away from the locking part two. The locking part one and the insertion block part two cooperate with each other, and the locking part two cooperates with the insertion block part one. A notch two is provided at corresponding positions on adjustment cover one and adjustment cover two. The insertion block part one and the insertion block two cooperate with corresponding slots two. The locking part one and the locking part two are slidably connected within curved grooves.

[0016] Preferably, a cylinder is provided on the upper end face of the furnace body, and the output end of the cylinder is connected to the furnace head.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the sample is heated by a combustion tube. At this time, the sample is immediately oxidized under high temperature and oxygen-rich conditions to generate CO2 and SO2 gases. Then, pure oxygen is introduced into the sample through an oxygen blowing tube. The analytical gas after combustion is filtered to remove dust through an opening and a filter screen. Then, it enters the infrared detection chamber through a gas separation tube to detect the concentration of CO2 and SO2, thereby obtaining the carbon and sulfur content in the sample.

[0018] 2. In this invention, the oxygen blowing pipe is moved downward by the cylinder. At this time, the locking block on the outer wall of the oxygen blowing pipe is pressed against the locking groove, thereby driving the circular plate to rotate. Since there is only one set of openings on the annular side, when the circular plate rotates, the set of openings on the circular plate corresponds to the openings, thereby achieving the effect of adjusting the outlet pressure of the analytical gas.

[0019] 3. In this invention, two sets of electric push rods are slidably connected on the fixed plate. In the initial state, the locking block on the outer wall of the oxygen blowing pipe will not contact the locking groove. When the electric push rod drives the annular edge to move upward, the locking block moves to the bottom of the vertical groove. Only when the oxygen blowing pipe drives the locking block to move downward will it contact the locking groove, thus ensuring the stability of the device.

[0020] 4. In this invention, by rotating the sleeve, the first cavity increases and the second cavity decreases, thus providing a large amount of oxygen instantly and effectively buffering the sudden pressure drop at the downstream combustion chamber inlet. The small aperture of the second cavity forms a forced damping effect on the airflow, making the airflow velocity entering the combustion chamber uniform.

[0021] 5. In this invention, since vertical airflow can easily cause sample splashing, resulting in metal particles adhering to the inside of the cover and shortening the equipment life, this device sets up an auxiliary mechanism to adjust the inner ring of the adjusting part by rotating the first adjusting cover and the second adjusting cover relative to each other, thereby preventing the sample from splashing into the cover. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main view structure proposed in this invention; Figure 2 This is a partial cross-sectional view of the invention. Figure 3 This is a cross-sectional schematic diagram of the cover body proposed in this invention; Figure 4 This is a schematic diagram of the circular plate proposed in this invention; Figure 5 This is a schematic diagram of the fastener proposed in this invention; Figure 6 This is a top view schematic diagram of the present invention; Figure 7 This is an enlarged schematic diagram of point A proposed in this invention; Figure 8 This is a schematic diagram of the combustion tube proposed in this invention; Figure 9 This is a schematic diagram of the locking component proposed in this invention; Figure 10 This is a schematic diagram of the auxiliary mechanism proposed in this invention; Figure 11 This is a schematic diagram of the rotating component proposed in this invention.

[0023] Figure label: 1. Furnace body; 2. Furnace head; 3. Chamber; 4. Cover; 5. Gas separation pipe; 6. Filter screen; 7. Crucible; 8. Combustion pipe; 9. Cylinder; 10. Adjustment mechanism; 11. Support component; 12. Auxiliary component; 13. Fixing component; 14. Sliding component; 20. Auxiliary mechanism; 21. Offset component; 22. Limiting component; 23. Rotating component; 24. Locking component; 111. Annular edge; 112. Circular plate; 113. Opening; 114. Through port; 115. Vertical groove; 116. Annular groove; 117. Slot; 121. Oxygen blowing pipe; 122. Locking block; 131. Fixing plate; 132. Through groove ; 133, Annular bar; 134, Connecting bar; 135, Sleeve; 136, Arc groove; 137, Positioning block; 141, Limiting groove; 142, Electric push rod; 211, Slide groove; 212, Sliding plate; 221, Slide opening; 222, Slide rod; 231, Arc opening; 232, Connecting part; 233, Annular plate; 234, Collar ring; 235, Curved groove; 241, Adjusting platform; 242, Adjusting cover one; 243, Adjusting cover two; 244, Bayonet one; 245, Locking part one; 246, Insertion block part one; 247, Locking part two; 248, Insertion block part two; 249, Bayonet two. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] Example 1 further illustrates a furnace head with real-time oxygen flow rate adjustment function proposed in this invention, comprising a furnace body 1, a furnace head 2 that moves vertically within the furnace body 1, a cylinder 9 detachably mounted on the upper surface of the furnace body 1, the output end of the cylinder 9 being connected to the furnace head 2, a chamber 3 formed inside the furnace body 1, a cover 4 fixedly connected to the top of the inner wall of the chamber 3, a gas separation pipe 5 seamlessly welded to the side wall of the cover 4, a filter screen 6 installed inside the cover 4, a crucible 7 installed at the middle position of the bottom end of the chamber 3, a combustion pipe 8 installed on the inner wall of the cover 4, and an adjustment mechanism 10 disposed inside the cover 4 for adjusting the oxygen flow rate; The adjustment mechanism 10 includes a support member 11 disposed inside the cover 4, an auxiliary member 12 disposed at the bottom of the furnace head 2, the support member 11 and the auxiliary member 12 cooperate with each other, a fixing member 13 is also disposed inside the cover 4, a sliding member 14 is disposed inside the fixing member 13, and one end of the sliding member 14 is disposed on the bottom end face of the support member 11. It also includes an auxiliary mechanism 20, which includes an offset member 21 disposed in the through groove 132, a limiting member 22 disposed in the connecting strip 134, the offset member 21 and the limiting member 22 cooperating with each other, a rotating member 23 disposed at the bottom end of the offset member 21, and a locking member 24 disposed in the fixing plate 131, the rotating member 23 and the locking member 24 cooperating with each other.

[0030] In use, the sample is placed in crucible 7. Then, the flux tungsten is ignited, releasing a large amount of heat and consuming a large amount of oxygen. The corresponding solenoid valve is opened to introduce oxygen and remove any remaining gas in the tube. When the SO2 content is zero, the sample is heated through combustion tube 8. At this time, the sample is immediately oxidized under high temperature and oxygen-rich conditions to generate CO2 and SO2 gases. Then, pure oxygen is introduced through oxygen blowing tube 121. The analytical gas after combustion is filtered through opening 113 and filter screen 6 to remove dust, and then enters the infrared detection chamber through gas separation tube 5 to detect the concentration of CO2 and SO2. In this way, the carbon and sulfur content in the sample can be obtained. The device adjusts the outlet pressure of the analytical gas through adjustment mechanism 10, and at the same time, the auxiliary mechanism 20 makes the airflow speed entering the combustion chamber uniform and prevents the sample from splashing into the cover 4.

[0031] Example 2 Based on Embodiment 1, the following technical features are added: The support member 11 includes an annular edge 111 fixedly connected inside the cover body 4, a circular plate 112 rotatably connected inside the annular edge 111, an opening 113 circumferentially provided inside the circular plate 112, a through-hole 114 provided in the middle of the circular plate 112, a vertical groove 115 circumferentially provided on the inner wall of the through-hole 114, an annular groove 116 provided inside the through-hole 114, the vertical groove 115 correspondingly communicating with the annular groove 116, and the annular groove 116 being recessed downward to form a slot 117; the auxiliary member 12 includes an oxygen blowing pipe 121 fixedly connected to the bottom end of the furnace head 2, a locking block 122 circumferentially fixedly connected to the outer wall of the oxygen blowing pipe 121, and the locking block 122 correspondingly abutting against the slot 117. Depend on Figures 1 to 5 It can be seen that the cover 4 is rotatably connected to the circular plate 112 through the annular edge 111. The annular edge 111 is a circular plate 112-shaped structure with a diameter larger than the circular plate 112. The upper end face of the circular plate 112 is provided with four sets of openings 113. A through-hole 114 is formed in the middle of the circular plate 112. The through-hole 114 passes through the annular edge 111. The annular edge 111 is provided with an opening, which is a set. When in use, the analytical gas enters the cover 4 from the gas separation tube 5 and then enters the crucible 7 from the opening 113. The structure of the opening 113 is further defined in this device. The size of the opening 113 can be designed to be different sizes as needed. When the circular plate 112 rotates, the opening 113 on the circular plate 112 corresponds to the opening. In this way, the flow rate of the analytical gas can be adjusted according to the different sizes of the opening 113. Furthermore, the inner wall of the opening 114 is provided with a vertical groove 115 in a circular shape. The vertical groove 115 gradually widens from top to bottom, but it is deformable. In the initial state, the oxygen blowing pipe 121 is stuck in the vertical groove 115. At this time, the circular plate 112 cannot rotate. When the cylinder 9 drives the oxygen blowing pipe 121 to move downward, the locking block 122 on its outer wall abuts against the locking groove 117. Since the locking groove 117 is a V-shaped groove, when the locking block 122 abuts against the inclined groove on the locking groove 117, it drives the circular plate 112 to rotate. The fastener 13 includes a fixing plate 131 fixedly connected inside the cover 4. The fixing plate 131 is recessed inward to form a through groove 132. An annular strip 133 is rotatably connected inside the through groove 132. A connecting strip 134 is fixedly connected to the inner wall of the annular strip 133 in a circular shape. A sleeve 135 is fixedly connected between multiple sets of connecting strips 134. An arc-shaped groove 136 is formed inside the sleeve 135. A positioning block 137 is fixedly connected to the outer wall of the oxygen blowing pipe 121. The positioning block 137 is correspondingly slidably connected in the arc-shaped groove 136. Depend on Figures 3 to 7 It can be seen that a cylindrical through groove 132 is formed in the fixed plate 131. An annular bar 133 is rotatably connected in the through groove 132 through a bearing. A sleeve 135 is fixed between multiple sets of connecting bars 134. Since an arc groove 136 is formed in the sleeve 135, and when the oxygen blowing pipe 121 moves in the vertical direction, the positioning block 137 on its outer side is slidably connected in the arc groove 136, thereby driving the sleeve 135 to rotate. The sliding member 14 includes a limiting groove 141 on the upper end face of the fixed plate 131. An electric push rod 142 is symmetrically slidably connected within the limiting groove 141. The output end of the electric push rod 142 is fixed to the lower end face of the annular edge 111. Figures 2 to 6 It can be seen that the limiting groove 141 is provided on the upper end face of the fixed plate 131. The limiting groove 141 is an annular structure, and an electric push rod 142 is slidably connected to it. The electric push rod 142 is adjusted by the corresponding controller. The output end of the electric push rod 142 is fixed to the lower end face of the circular plate 112 of the annular edge 111, thereby driving the annular edge 111 to move vertically. The annular edge 111 drives the circular plate 112 to move downward. At this time, the oxygen blowing pipe 121 locking block 122 moves to the position above the vertical groove 115. At this time, when the cylinder 9 drives the oxygen blowing pipe 121 to move downward, its locking block 122 will not contact the locking groove 117, so the circular plate 112 will not rotate. Working principle: As shown in Example 1, the sample is placed in crucible 7, then the flux tungsten is ignited first, the corresponding solenoid valve is opened, oxygen is introduced into the tube to remove the remaining gas in the tube, and then the sample is heated through combustion tube 8 to detect the concentration of SO2 and obtain the content of carbon and sulfur in the sample. Under normal oxygen blowing conditions, the locking block 122 on the outer wall of the oxygen blowing pipe 121 is positioned above the vertical groove 115. When the cylinder 9 moves the oxygen blowing pipe 121 downwards, the locking block 122 will not contact the groove 117, and the circular plate 112 will not rotate. When it is necessary to change to a different opening 113, the electric push rod 142 is used to move the annular edge 111 upwards, so that the locking block 122 on the outer side of the oxygen blowing pipe 121 moves to the bottom of the vertical groove 115. In this way, the cylinder 9 moves the oxygen blowing pipe 121 downwards, so that the locking block 122 contacts the groove 117. At this time, to adjust the outlet pressure of the analytical gas, the cylinder 9 only needs to drive the oxygen blowing pipe 121 to move downward. At this time, the locking block 122 on the outer wall of the oxygen blowing pipe 121 abuts against the locking groove 117, thereby driving the circular plate 112 to rotate. Since there is only one set of openings on the annular edge 111, when the circular plate 112 rotates, this makes the set of openings 113 on the circular plate 112 correspond to the openings, thereby achieving the effect of adjusting the analytical gas. When the cylinder 9 drives the oxygen blowing pipe 121 to move upward, the locking block 122 abuts against the vertical groove 115, thus restricting the position of the circular plate 112.

[0032] Example 3 Based on Embodiment 2, the following technical features are added: the offset member 21 includes a circumferentially circumferentially arranged sliding groove 211 at the bottom end of the through groove 132, and a corresponding sliding plate 212 is slidably connected in the sliding groove 211. Adjacent sets of sliding plates 212 abut against each other through inclined surfaces. The sleeve 135 is disposed above the sliding plate 212. The limiting member 22 includes a sliding opening 221 disposed in the connecting strip 134. A sliding rod 222 is slidably connected in the sliding opening 221 and the sliding groove 211. The sliding rod 222 is fixed. Connected to the outer wall of the sliding plate 212, the rotating component 23 includes an arc-shaped opening 231 circumferentially disposed on the fixed plate 131, an annular strip 133 is provided with a connecting part 232 at the arc-shaped opening 231, an annular plate 233 is fixedly connected to the bottom end of multiple sets of connecting parts 232, a collar 234 is fixedly connected to the bottom end of the annular plate 233, a collar 234 is provided on the outer wall of the collar 234, a plurality of curved grooves 235 are provided, the combustion tube 8 is fixedly connected to the bottom end of the fixed plate 131, and the collar 234 is disposed inside the combustion tube 8; Depend on Figures 4 to 8 It can be seen that its sliding groove 211 is a straight strip structure with six sets. Sliding plates 212 are slidably connected inside. Adjacent sliding plates 212 are abutted by inclined surfaces. Since the sleeve 135 is provided with an arc groove 136, when the oxygen blowing pipe 121 drives the positioning block 137 to move vertically, it drives the sleeve 135 to rotate. The sleeve 135 drives the annular plate 233 at the bottom of the connecting part 232 to rotate. The bottom of the annular plate 233 is fixed with a collar 234. Four sets of curved grooves 235 are arranged around the outer wall of the collar 234. When the annular plate 233 rotates, it drives the collar 234 to rotate. Therefore, when the sliding plates 212 move in contact with each other, they drive the size of the sleeve 135 channel to be adjusted, thus regulating the pure oxygen flow rate. Locking component 24 includes an adjusting platform 241 fixedly connected inside the combustion tube 8. Adjusting cover one 242 and adjusting cover two 243 are snapped into the adjusting platform 241. Adjusting cover one 242 and adjusting cover two 243 form a set of adjusting parts, and there are two sets in total. Adjusting cover one 242 and adjusting cover two 243 rotate relative to each other. The bottom end of the adjusting platform 241 is provided with a circumferentially circumferentially shaped latch 244. A locking part 245 is fixedly connected to the inner side of adjusting cover one 242. An insert part 246 is fixedly connected to the inner end of adjusting cover one 242 away from the locking part 245. Adjusting cover two 243... 43 is fixedly connected to the inner side of a locking part 247. The inner side of the adjusting cover 243 away from the locking part 247 is fixedly connected to a plug part 248. The locking part 1 245 and the plug part 248 cooperate with each other. The locking part 247 cooperates with the plug part 1 246. The adjusting cover 1 242 and the adjusting cover 243 are provided with a bayonet 249 at corresponding positions. The plug part 1 246 and the plug part 248 cooperate with the slot 117. The locking part 1 245 and the locking part 247 are slidably connected in the curved groove 235. Depend on Figures 4 to 11 It can be seen that adjustment cover 1 242 and adjustment cover 243 form a set of adjustment parts. In this scheme, there are two sets of adjustment parts, one set of adjustment parts has a larger diameter than the other set, and the smaller diameter adjustment part is locked in the larger diameter set. Insertion block part 1 246 and insertion block part 248 are rotatably connected in the slot 117. At the same time, locking part 1 245 and locking part 247 are correspondingly slidably connected in the curved groove 235. Due to the deflection force of the curved groove 136, locking part 1 245 and locking part 247 deflect according to the curvature of the curved groove 136, thus driving the two sets of adjustment parts to rotate relative to each other. Figure 10 It can be seen that when the first adjusting cover 242 and the second adjusting cover 243 rotate relative to each other, the size of the inner ring of the adjusting platform 241 can change with the rotation of the two covers. As can be seen from the above, in actual use, the size of the inner channel of the sleeve 135 and the size of the inner channel of the adjustment part can be adjusted accordingly. The two move synchronously. In the initial state, the channel sizes of the two are the same. Assuming that the size of the inner channel of the sleeve 135 is the first cavity and the size of the inner channel of the adjustment part is the second cavity, when the sleeve 135 rotates, the first cavity increases and the second cavity decreases. In this way, a large amount of oxygen can be provided instantly, effectively buffering the sudden pressure drop at the downstream combustion chamber inlet. The small orifice of the second cavity forms a forced damping on the airflow, making the airflow velocity entering the combustion chamber uniform. Furthermore, since vertical airflow can easily cause sample splashing, resulting in metal particles adhering to the inside of the cover 4 and shortening the equipment life, this device sets up an auxiliary mechanism 20, which adjusts the inner ring of the adjustment part to become smaller by rotating the first adjustment cover 242 and the second adjustment cover 243 relative to each other, thereby preventing the sample from splashing into the cover 4.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A furnace head with real-time adjustable oxygen flow rate, comprising a furnace body, a furnace head disposed within the furnace body, a chamber formed within the furnace body, a cover disposed at the top of the inner wall of the chamber, and a gas separation pipe disposed on the side wall of the cover, characterized in that, It also includes, A filter screen is disposed inside the cover. The crucible is located at the middle of the bottom end of the chamber; The combustion tube is located on the inner wall of the enclosure; The regulating mechanism, located inside the hood, is used to adjust the oxygen flow rate.

2. A furnace head with real-time adjustable oxygen flow rate according to claim 1, characterized in that, The adjustment mechanism includes a support member disposed inside the hood, an auxiliary member disposed at the bottom of the furnace head, the support member and the auxiliary member cooperating with each other, a fixing member disposed inside the hood, a sliding member disposed inside the fixing member, and one end of the sliding member disposed on the bottom end face of the support member.

3. A furnace head with real-time adjustable oxygen flow rate according to claim 2, characterized in that, The support member includes an annular edge disposed within the cover body, a circular plate disposed within the annular edge, an opening circumferentially disposed within the circular plate, a through-hole disposed in the middle of the circular plate, a vertical groove circumferentially disposed within the inner wall of the through-hole, an annular groove disposed within the through-hole, the vertical groove correspondingly communicating with the annular groove, and the annular groove being recessed downward to form a retaining groove.

4. A furnace head with real-time adjustable oxygen flow rate according to claim 3, characterized in that, The auxiliary component includes an oxygen blowing pipe located at the bottom of the furnace head, with a circumferentially arranged locking block on the outer wall of the oxygen blowing pipe, the locking block correspondingly abutting in the locking groove.

5. A furnace head with real-time adjustable oxygen flow rate according to claim 2, characterized in that, The fixing component includes a fixing plate disposed inside the cover body. The fixing plate is recessed inward to form a through groove. An annular strip is disposed in the through groove. A connecting strip is disposed circumferentially on the inner wall of the annular strip. A sleeve is disposed between multiple sets of the connecting strips. An arc-shaped groove is formed inside the sleeve. A positioning block is disposed on the outer wall of the oxygen blowing pipe. The positioning block is correspondingly slidably connected in the arc-shaped groove.

6. A furnace head with real-time adjustable oxygen flow rate according to claim 3, characterized in that, The sliding component includes a limiting groove on the upper surface of the fixed plate, and electric push rods are symmetrically arranged in the limiting groove. The output end of the electric push rod is located on the lower surface of the annular edge.

7. A furnace head with real-time adjustable oxygen flow rate according to claim 5, characterized in that, It also includes an auxiliary mechanism, which includes an offset component disposed in the through groove, a limiting component disposed in the connecting strip, the offset component and the limiting component cooperating with each other, a rotating component disposed at the bottom end of the offset component, and a locking component disposed in the fixing plate, the rotating component and the locking component cooperating with each other.

8. A furnace head with real-time adjustable oxygen flow rate according to claim 7, characterized in that, The offset component includes a circumferentially arranged sliding groove at the bottom of the through groove, and a corresponding sliding plate is arranged in the sliding groove. Adjacent sets of sliding plates abut against each other through an inclined surface, and the sleeve is arranged above the sliding plate.

9. A furnace head with real-time adjustable oxygen flow rate according to claim 8, characterized in that, The limiting component includes a sliding opening provided in the connecting strip, and a sliding rod is provided in the sliding opening and the sliding groove. The sliding rod is provided on the outer wall of the sliding plate.

10. A furnace head with real-time adjustable oxygen flow rate according to claim 9, characterized in that, The rotating component includes an arc-shaped opening circumferentially disposed on the fixed plate. The annular strip is provided with a connecting part at the arc-shaped opening. An annular plate is provided at the bottom end of multiple sets of the connecting parts. A collar is provided at the bottom end of the annular plate. Multiple sets of curved grooves are provided on the outer wall of the collar. The combustion tube is disposed at the bottom end of the fixed plate. The collar is disposed inside the combustion tube.

11. A furnace head with real-time adjustable oxygen flow rate according to claim 9, characterized in that, The locking component includes an adjustment platform disposed inside the combustion tube. The adjustment platform contains an adjustment cover one and an adjustment cover two, which cooperate with each other. The diameter of adjustment cover one is larger than that of adjustment cover two. A circumferential notch is provided at the bottom end of the adjustment platform. A locking part one is provided inside adjustment cover one, and an insertion block part one is provided at the end of adjustment cover one's inner side away from the locking part one. A locking part two is provided inside adjustment cover two, and an insertion block part two is provided at the end of adjustment cover two's inner side away from the locking part two. The locking part one and the insertion block part two cooperate with each other, and the locking part two cooperates with the insertion block part one. A notch two is provided at corresponding positions on adjustment cover one and adjustment cover two. The insertion block part one and the insertion block two cooperate with corresponding slots two. The locking part one and the locking part two are slidably connected within curved grooves.

12. A carbon-sulfur meter, characterized in that, The furnace head includes a furnace head with real-time oxygen flow rate adjustment function as described in any one of claims 1-11, wherein a cylinder is provided on the upper end face of the furnace body, and the output end of the cylinder is connected to the furnace head.

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