A method and device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis

Abstract

The invention discloses a method and device for measuring total sulfur in coal by infrared spectrum based on tungsten trioxide catalysis. The incineration box is provided with a sealing crushing structure and a sufficient incineration structure, the dehydration box is provided with a dehydration structure, the inner side of the measuring box is provided with a measuring structure, and the incineration box, the dehydration box and the measuring box are connected to each other through a siphon suction flow structure. The silicon carbon tube responsible for heating in the existing domestic sulfur measuring instrument is easy to crack at 1300°C, and the coal sample measurement temperature is reduced to 1250°C to extend the service life of the silicon carbon tube, the sulfate decomposition temperature is 1250°C, and 1250°C cannot meet the requirement that all sulfur in the coal is burned and decomposed into sulfur dioxide, while tungsten trioxide can reduce the sulfate decomposition temperature, so a thin layer of tungsten trioxide is sprinkled on the coal sample to ensure that the sulfur in the coal sample can be completely decomposed and detected by infrared, and at the same time, the smoke and the dehydrating agent are quickly mixed and stirred through the dehydration structure, and at the same time, quantitative sealing and feeding are performed, thereby avoiding the phenomenon of data error.

Description

Technical Field

[0001] The invention relates to the technical field of total sulfur detection in coal, in particular to a method and a device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis. Background Art

[0002] Infrared spectroscopy, also known as "infrared spectrophotometry", is a type of molecular absorption spectroscopy. It is a method for quantitative and qualitative analysis of various compounds that absorb infrared light, based on the fact that different substances selectively absorb electromagnetic radiation in the infrared region to perform structural analysis.

[0003] The infrared spectroscopy method stipulates that the measurement temperature of coal samples is 1300℃. The silicon carbon tube responsible for heating in the existing domestic sulfur analyzers is prone to cracking at 1300℃ and has a short service life. Lowering the coal sample measurement temperature to 1250℃ can greatly extend the life of the silicon carbon tube. In view of this, in-depth research was conducted on the above issues, which led to this case. Summary of the invention

[0004] The technical scheme of the present invention for achieving the above-mentioned purpose is: a method and device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis, comprising: an incineration box, a dehydration box and a measuring box, the incineration box is equipped with a sealed crushing structure and a sufficient incineration structure, the dehydration box is equipped with a dehydration structure, the inner side of the measuring box is equipped with a measuring structure, and the incineration box, the dehydration box and the measuring box are connected to each other through a siphon suction structure;

[0005] The dehydration structure comprises: a dehydration raw material box, a quantitative transfer pipe, a trumpet-shaped drainage block, a stirring and mixing shaft tube, a stirring driving machine, a stirring gear box, a stirring disc, a plurality of stirring blades, a plurality of side wall stirring shafts, a plurality of stirring side wall discs, two pairs of side wall gear boxes, two pairs of side wall driving machines and a sealed quantitative feeding component;

[0006] The dewatering raw material box is installed on the dewatering box, the quantitative transfer pipe is connected to the dewatering raw material box and the dewatering box, the sealed quantitative feeding assembly is installed on the inner side of the quantitative transfer pipe, the trumpet-shaped drainage block is inserted on the quantitative transfer pipe, the stirring and mixing shaft tube is inserted on the top of the dewatering box through a bearing, and the stirring and mixing shaft tube is sleeved on the outer side of the trumpet-shaped drainage block through a bearing, the stirring gear box is sleeved on the stirring and mixing shaft tube, the stirring driving machine is installed on the stirring gear box, and the stirring disc is sleeved on the stirring gear box. On the mixing shaft tube, several side wall stirring shafts are inserted on the side wall of the dehydration box through bearings, several stirring side wall discs are respectively installed on several side wall stirring shafts, several stirring blades are respectively installed on the stirring discs and several stirring side wall discs, two pairs of side wall gear boxes are respectively installed on the side walls of the dehydration box, and two pairs of side wall gear boxes are respectively sleeved on several side wall stirring shafts, two pairs of side wall driving machines are respectively installed on two pairs of side wall gear boxes, and the dehydration box and the incineration box are provided with a discharge structure;

[0007] The discharge structure comprises: a drainage discharge pipe, a circular inclined drainage block, a disc box, a plurality of shielding arc blocks, a discharge rotating disc, a discharge shaft, a discharge driving machine, a plurality of drainage square pipes, a plurality of collecting membranes, a circular limited discharge pipe, a discharge inclined pipe, a discharge electric push rod and a push plate;

[0008] The disc box is installed on the bottom end of the dehydration box, the drainage unloading pipe is inserted into the dehydration box and the disc box, the unloading shaft is inserted into the disc box through a bearing, the unloading rotating disc is installed on the unloading shaft, a plurality of the drainage square tubes are evenly inserted into the unloading rotating disc, a plurality of the collecting membranes are respectively installed on a plurality of the drainage square tubes, the unloading driving machine is connected to the unloading shaft, a plurality of the shielding arc blocks are respectively connected to a plurality of the drainage square tubes, the circular inclined drainage block is installed on the inner side of the dehydration box, the circular limit unloading pipe is inserted into the disc box, the unloading inclined pipe is inserted into the circular limit unloading pipe, the unloading electric push rod is installed on the disc box, the pushing plate is installed on the pushing end of the unloading electric push rod, and the pushing plate is directly opposite to the circular limit unloading pipe;

[0009] The sealed quantitative feeding assembly comprises: a feeding electric push rod, a spoon-shaped feeding block, a feeding plate and a feeding shaft;

[0010] The feeding electric push rod is installed on the inner side of the quantitative transfer tube, the spoon-shaped feeding block is movably inserted on the inner side of the quantitative transfer tube, and the spoon-shaped feeding block is connected to the pushing end of the feeding electric push rod, the feeding shaft is inserted on the feeding plate, and the feeding shaft is inserted on the spoon-shaped feeding block through a bearing;

[0011] The sealed crushing structure comprises: a crushing box, a crusher, an L-shaped feeding pipe, a lifting shielding concave block, a lifting shielding electric push rod, a concave shielding block and a shielding rubber pad;

[0012] The crushing box is installed on the side wall of the incineration box, the L-shaped feeding pipe is inserted into the crushing box and the incineration box, the crusher is installed on the inner side of the crushing box, the lifting and shielding concave block is inserted into the L-shaped feeding pipe, the lifting and shielding electric push rod is installed on the inner side of the lifting and shielding concave block, the concave shielding block is movably inserted into the inner side of the lifting and shielding concave block, and the concave shielding block is installed on the pushing end of the lifting and shielding electric push rod, and the shielding rubber pad is installed on the concave shielding block;

[0013] The siphon suction and drainage structure comprises: a pair of S-shaped siphon suction and drainage tubes, a pair of set insulation sleeves, a pair of coiled electric heating tubes and two pairs of temperature sensors;

[0014] A pair of S-shaped siphon suction pipes are respectively connected to the incineration box, the dehydration box and the measuring box, a pair of the sheathed insulation sleeves are sheathed on the pair of S-shaped siphon suction pipes, a pair of the coiled electric heating tubes are respectively installed on the inner sides of the pair of sheathed insulation sleeves, and a pair of the temperature sensors are respectively installed on the pair of S-shaped siphon suction pipes, the dehydration box and the inner sides of the measuring box.

[0015] Preferably, the fully incineration structure comprises: an oxygen reaction box, an air pump, an air filling shunt pipe, a plurality of air filling pipes, a plurality of stirring and mixing discs, a plurality of stirring magnet blocks and a stirring and mixing driving machine;

[0016] The oxygen reaction box is installed on the incineration box, the vacuum pump is installed on the oxygen reaction box, a plurality of the inflation tubes are evenly inserted on the inner side of the incineration box, the inflation diversion tube is connected to the vacuum pump, and the inflation diversion tube is connected to a plurality of the inflation tubes, the stirring and mixing driving machine is installed on the incineration box, a plurality of the stirring and mixing discs are inserted on a plurality of the inflation tubes through bearings, and the stirring and mixing discs are installed on the driving end of the stirring and mixing driving machine, a plurality of the stirring magnet blocks are respectively installed on a plurality of the stirring and mixing discs, and a plurality of exhaust ports are respectively opened at the bottom ends of a plurality of the inflation tubes.

[0017] Preferably, the measuring structure comprises: an I-shaped glass tube, an infrared transmitter, an infrared receiver and a data recognition calculator;

[0018] The infrared transmitter and the infrared receiver are installed on the inner side of the measuring box, the I-shaped glass tube is installed on the inner side of the measuring box, and the I-shaped glass tube is sleeved on the infrared transmitter and the infrared receiver, the data recognition calculator is installed on the measuring box, and the data recognition calculator is connected to the infrared receiver.

[0019] Preferably, a stirring and mixing structure is provided inside the dehydrated raw material box;

[0020] The stirring and mixing structure comprises: a stirring and mixing driving machine, a stirring and mixing shaft and a stirring blade;

[0021] The stirring and mixing shaft is inserted on the dewatering raw material box through a bearing, the stirring and mixing driving machine is installed on the stirring and mixing shaft, and the stirring blade is installed on the stirring and mixing shaft.

[0022] A method for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis, comprising the following operating steps: step S1, raw material collection; step S2, raw material crushing; step S3, full combustion; step S4, smoke dehydration; step S5, infrared spectroscopy measurement;

[0023] Step S1: weigh a certain amount of coal sample;

[0024] Step S2: crushing the coal into powder, so as to achieve the goal of guiding the powder to the inner side of the incineration box;

[0025] Step S3: stirring and burning the pulverized coal, and simultaneously oxygenating the pulverized coal so as to completely burn the pulverized coal, thereby avoiding incomplete combustion;

[0026] Step S4: mixing the dehydrating agent and tungsten trioxide and sealing and draining them to the inner side of the dehydration box;

[0027] Step S5: Because sulfur dioxide absorbs infrared rays, while some gas molecules such as oxygen and nitrogen do not absorb infrared rays, and the infrared absorption of gases follows Beer's law, the sulfur content in the coal sample is obtained through computer software processing.

[0028] The temperature of the smoke is controlled by a pair of coiled electric heating tubes, so that the temperature is controlled at 1250℃ and catalyzed by tungsten trioxide.

[0029] The infrared spectrum method for measuring total sulfur in coal based on tungsten trioxide catalysis is made by utilizing the technical solution of the present invention. The silicon carbon tube responsible for heating in the existing domestic sulfur measuring instrument is easy to crack at 1300°C and has a short service life. The coal sample measurement temperature is reduced to 1250°C, which can greatly extend the life of the silicon carbon tube. The sulfate starts to decompose at 1250°C, so 1250°C cannot meet the requirement that all sulfur in the coal is burned and decomposed into sulfur dioxide. Tungsten trioxide can reduce the decomposition temperature of sulfate, so a thin layer of tungsten trioxide is sprinkled on the coal sample to ensure that the sulfur in the coal sample can be completely decomposed and detected by infrared. At the same time, the smoke and the dehydrating agent are quickly mixed and stirred through the dehydration structure, and the quantitative sealing and feeding are performed to avoid the occurrence of data errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main structure of a device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to the present invention.

[0031] Figure 2 This is a schematic diagram of the side structure of a dehydration box of a device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to the present invention.

[0032] Figure 3 This is a schematic diagram of the side structure of the incineration box of the device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to the present invention.

[0033] Figure 4 This is a schematic diagram of the top view of the dehydration box of the device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis described in the present invention.

[0034] Figure 5 This is a schematic diagram of the top view of the structure of the incineration box of the device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis described in the present invention.

[0035] In the figure: 1. Incineration box; 2. Dehydration box; 3. Measuring box; 4. Dehydration raw material box; 5. Quantitative transfer pipe; 6. Trumpet-shaped drainage block; 7. Stirring and mixing shaft tube; 8. Stirring drive; 9. Stirring gear box; 10. Stirring disc; 11. Stirring blade; 12. Side wall stirring shaft; 13. Stirring side wall disc; 14. Side wall gear box; 15. Side wall drive; 16. Drainage discharge pipe; 17. Round inclined drainage block; 18. Disc box; 19. Shielding arc block; 20. Discharge rotation Disc; 21. Discharge shaft; 22. Discharge drive; 23. Drainage square tube; 24. Collecting membrane; 25. Ring-shaped limit discharge tube; 26. Discharge inclined tube; 27. Discharge electric push rod; 28. Push plate; 29. ​​Loading electric push rod; 30. Spoon-shaped loading block; 31. Loading plate; 32. Loading shaft; 33. Crushing box; 34. Crusher; 35. L-shaped loading tube; 36. Blocking rubber pad; 37. Lifting and blocking concave block; 38. Lifting and blocking electric push rod; 39. Concave blocking block. DETAILED DESCRIPTION

[0036] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0037] Example

[0038] like Figure 1-5 As shown, the incineration box 1 is equipped with a sealed crushing structure and a fully incinerated structure, the dehydration box 2 is equipped with a dehydration structure, and the inner side of the measuring box 3 is equipped with a measuring structure. The incineration box 1, the dehydration box 2 and the measuring box 3 are connected to each other through a siphon suction structure.

[0039] Specifically, the dehydration structure includes: a dehydration raw material box 4, a quantitative transfer pipe 5, a trumpet-shaped drainage block 6, a stirring and mixing shaft tube 7, a stirring driving machine 8, a stirring gear box 9, a stirring disc 10, a plurality of stirring blades 11, a plurality of side wall stirring shafts 12, a plurality of stirring side wall discs 13, two pairs of side wall gear boxes 14, two pairs of side wall driving machines 15 and a sealed quantitative feeding component;

[0040] Specifically, the dehydrated raw material box 4 is installed on the dehydrated box 2, the quantitative transfer pipe 5 is connected to the dehydrated raw material box 4 and the dehydrated box 2, the sealed quantitative feeding assembly is installed on the inner side of the quantitative transfer pipe 5, the trumpet-shaped drainage block 6 is inserted on the quantitative transfer pipe 5, the stirring and mixing shaft tube 7 is inserted on the top of the dehydrated box 2 through a bearing, and the stirring and mixing shaft tube 7 is sleeved on the outer side of the trumpet-shaped drainage block 6 through a bearing, the stirring gear box 9 is sleeved on the stirring and mixing shaft tube 7, the stirring driving machine 8 is installed on the stirring gear box 9, and the stirring disc 10 is sleeved on the stirring and mixing shaft On the tube 7, several side wall stirring shafts 12 are inserted on the side walls of the dehydration box 2 through bearings, several stirring side wall discs 13 are respectively installed on several side wall stirring shafts 12, several stirring blades 11 are respectively installed on the stirring discs 10 and several stirring side wall discs 13, two pairs of side wall gear boxes 14 are respectively installed on the side walls of the dehydration box 2, and two pairs of side wall gear boxes 14 are respectively mounted on several side wall stirring shafts 12, two pairs of side wall driving machines 15 are respectively installed on two pairs of side wall gear boxes 14, and the dehydration box 2 and the incineration box 1 are provided with discharge structures.

[0041] When in use, the test coal is sealed and crushed through the sealed crushing structure on the incineration box 1, and the crushed raw materials are fully incinerated inside the incineration box 1 through the fully incineration structure inside the incineration box 1. The smoke after incineration is drained to the inside of the dehydration box 2 through the siphon suction structure, and the dehydrating agent and tungsten trioxide inside the dehydrated raw material box 4 are stably pushed to the stirring and mixing shaft tube 7 through the sealed quantitative feeding component inside the dehydration box 2, and provided to the stirring driving machine 8 to run, driving the stirring gear box 9 on the driving end of the stirring driving machine 8, and driving the stirring and mixing shaft tube 7 inside it to rotate through the stirring gear box 9, and driving the stirring disc 10 on it through the stirring and mixing shaft tube 7, and driving the plurality of stirring plates 11 on it through the rotating stirring disc 10, so as to achieve the dehydration. The dehydrating agent and tungsten trioxide inside the box 2 are mixed by high-speed rotation and are operated by two pairs of side wall driving machines 15, respectively driving the side wall gear boxes 14 on the driving ends of the two pairs of side wall driving machines 15, respectively driving a number of side wall stirring shafts 12 thereon through the two pairs of side wall gear boxes 14, respectively driving a number of stirring side wall discs 13 thereon through the several side wall stirring shafts 12, respectively driving a number of stirring blades 11 thereon through the several rotating stirring side wall discs 13, and respectively driving a number of stirring blades 11 thereon through the stirring blades 11 on the several side walls, thereby generating a rotating airflow in the dehydrating box 2, thereby contacting the smoke with the airflow containing tungsten trioxide and the dehydrating agent, thereby dehydrating the moisture in the smoke, and thereby filtering out the moisture in the smoke.

[0042] like Figure 1-5As shown, the discharge structure includes: a drainage discharge pipe 16, a circular inclined drainage block 17, a disc box 18, a plurality of shielding arc blocks 19, a discharge rotating disc 20, a discharge shaft 21, a discharge driving machine 22, a plurality of drainage square pipes 23, a plurality of collecting membranes 24, a circular limited discharge pipe 25, a discharge inclined pipe 26, a discharge electric push rod 27 and a push plate 28;

[0043] Specifically, the disc box 18 is installed on the bottom end of the dehydration box 2, the drainage discharge pipe 16 is inserted into the dehydration box 2 and the disc box 18, the discharge shaft 21 is inserted into the disc box 18 through a bearing, the discharge rotating disc 20 is installed on the discharge shaft 21, a plurality of drainage square tubes 23 are evenly inserted into the discharge rotating disc 20, a plurality of collection membranes 24 are respectively installed on a plurality of drainage square tubes 23, and the discharge drive machine 22 is connected to the discharge shaft 21, several of the shielding arc blocks 19 are respectively connected to several of the drainage square tubes 23, the circular inclined drainage block 17 is installed on the inner side of the dehydration box 2, the circular limit discharge pipe 25 is inserted on the disc box 18, the discharging inclined pipe 26 is inserted on the circular limit discharge pipe 25, the discharging electric push rod 27 is installed on the disc box 18, the pushing plate 28 is installed on the pushing end of the discharging electric push rod 27, and the pushing plate 28 is opposite to the circular limit discharge pipe 25.

[0044] When in use, the dehydrating agent after burning or dehydration is drained to the inner side of the drainage square tube 23 on the disc box 18 through the drainage discharge pipe 16, and the coal ash and the dehydrating agent are collected through the collection membrane 24 on the drainage square tube 23. The discharge driving machine 22 is operated, and the discharge driving machine 22 drives the discharge shaft 21 thereon, and the discharge rotating disc 20 thereon is driven by the discharge shaft 21. The discharge rotating disc 20 drives the plurality of drainage square tubes 23 thereon to rotate horizontally, and the shielding arc blocks 19 on the plurality of drainage square steel pipes are used. The waste debris falling from the drainage discharge pipe 16 is blocked by draining the drainage square pipe 23 to the top of the discharge electric push rod 27. The discharge electric push rod 27 is extended and retracted to drive the push plate 28 on the pushing end of the discharge electric push rod 27. The waste on the collection membrane 24 is pushed to the inner side of the circular limit discharge pipe 25 through the push plate 28, and the waste is drained out through the discharge inclined pipe 26 on the circular limit discharge pipe 25. When pushing, the collection membrane 24 seals and pushes the circular limit discharge pipe 25 and the drainage square pipe 23.

[0045] like Figure 1-5 As shown, the sealed quantitative feeding assembly includes: a feeding electric push rod 29, a spoon-shaped feeding block 30, a feeding plate 31 and a feeding shaft 32;

[0046] Specifically, the feeding electric push rod 29 is installed on the inner side of the quantitative transfer tube 5, the spoon-shaped feeding block 30 is movably inserted on the inner side of the quantitative transfer tube 5, and the spoon-shaped feeding block 30 is connected to the pushing end of the feeding electric push rod 29, the feeding shaft 32 is inserted on the feeding plate 31, and the feeding shaft 32 is inserted on the spoon-shaped feeding block 30 through a bearing.

[0047] When in use, the dehydration raw material box 4 drains the dehydrating agent and tungsten trioxide to the inner loading plate 31 of the spoon-shaped loading block 30, and the loading electric push rod 29 is extended and retracted to drive the spoon-shaped loading block 30 on the pushing end, and the loading plate 31 on the spoon-shaped loading block 30 is pushed to the inner side of the trumpet-shaped drainage block 6, so that the loading plate 31 is no longer limited, and the loading plate 31 rotates along the loading shaft 32, thereby draining the raw materials to the inner side of the stirring and mixing shaft tube 7.

[0048] like Figure 1-5 As shown, the sealing crushing structure includes: a crushing box 33, a crusher 34, an L-shaped feeding tube 35, a lifting shielding concave block 37, a lifting shielding electric push rod 38, a concave shielding block 39 and a shielding rubber pad 36;

[0049] Specifically, the crushing box 33 is installed on the side wall of the incineration box 1, the L-shaped feeding pipe 35 is inserted into the crushing box 33 and the incineration box 1, the crusher 34 is installed on the inner side of the crushing box 33, the lifting and shielding concave block 37 is inserted into the L-shaped feeding pipe 35, the lifting and shielding electric push rod 38 is installed on the inner side of the lifting and shielding concave block 37, the concave shielding block 39 is movably inserted into the inner side of the lifting and shielding concave block 37, and the concave shielding block 39 is installed on the pushing end of the lifting and shielding electric push rod 38, and the shielding rubber pad 36 is installed on the concave shielding block 39.

[0050] When in use, the coal is crushed by the crusher 34 inside the crushing box 33, and the crushed coal powder inside the crushing box 33 is drained to the inside of the dewatering box 2 through the L-shaped feeding pipe 35. The lifting and shielding electric push rod 38 is extended and retracted to drive the lifting and shielding concave blocks 37 thereon, and the lifting and shielding concave blocks 37 drive the shielding rubber pads 36 thereon, and the L-shaped feeding pipe 35 is squeezed and sealed by the shielding rubber pads 36.

[0051] like Figure 1-5 As shown, the fully incineration structure includes: an oxygen reaction box, an air pump, an air filling shunt pipe, a plurality of air filling pipes, a plurality of stirring and mixing discs, a plurality of stirring magnet blocks and a stirring and mixing driving machine;

[0052] Specifically, the oxygen reaction box is installed on the incineration box 1, the vacuum pump is installed on the oxygen reaction box, a plurality of the inflation tubes are evenly inserted on the inner side of the incineration box, the inflation diversion tube is connected to the vacuum pump, and the inflation diversion tube is connected to a plurality of the inflation tubes, the stirring and mixing driving machine is installed on the incineration box 1, a plurality of the stirring and mixing discs are inserted on a plurality of the inflation tubes through bearings, and the stirring and mixing discs are installed on the driving end of the stirring and mixing driving machine, a plurality of the stirring magnet blocks are respectively installed on a plurality of the stirring and mixing discs, and a plurality of exhaust ports are respectively opened at the bottom ends of a plurality of the inflation tubes.

[0053] When in use, the oxygen generated inside the oxygen reaction box is drained to the inflation diversion pipe through the vacuum pump, and the oxygen flows to the inner sides of several inflation pipes through the inflation diversion pipe respectively, and the oxygen is squeezed into the inner side of the incineration box 1 through the several inflation pipes. The stirring and mixing driving machine is operated to drive the stirring and mixing disk on the driving end of the stirring and mixing driving machine, and the stirring and mixing disk drives several stirring magnet blocks thereon, and the several stirring magnet blocks rotate to achieve magnetic conduction, thereby achieving the purpose of rotating the several stirring and mixing disks through magnetic conduction, and the coal powder inside the incineration box 1 is stirred and burned through the several rotating stirring and mixing disks.

[0054] like Figure 1-5 As shown, the measuring structure includes: an I-shaped glass tube, an infrared transmitter, an infrared receiver and a data recognition calculator;

[0055] Specifically, the infrared transmitter and the infrared receiver are installed on the inner side of the measuring box 3, the I-shaped glass tube is installed on the inner side of the measuring box 3, and the I-shaped glass tube is sleeved on the infrared transmitter and the infrared receiver, the data recognition calculator is installed on the measuring box, and the data recognition calculator is connected to the infrared receiver.

[0056] When in use, the dehydrated smoke inside the measuring box 3 is drained and discharged through the I-shaped glass tube, and the smoke is irradiated and measured through the infrared transmitter and infrared receiver on the I-shaped glass tube. The sulfur dioxide gas concentration is detected at a certain flow rate into the I-shaped glass tube, because sulfur dioxide has an absorption effect on infrared rays, while some gas molecules: oxygen and nitrogen have no absorption effect on infrared rays, and the gas absorption of infrared rays follows Beer's law. After being processed by the data recognition calculator, the sulfur content in the coal sample is obtained. "GB / T25214 Total Sulfur Determination in Coal by Infrared Spectroscopy" stipulates that the coal sample measurement temperature is 1300℃. The silicon carbon tube responsible for heating in the existing domestic sulfur measuring instrument is prone to cracking at 1300℃ and has a short service life. Lowering the coal sample measurement temperature to 1250℃ can greatly extend the life of the silicon carbon tube. However, given that the decomposition temperature of sulfate begins at 1250℃, 1250℃ cannot meet the requirement that all sulfur in coal is burned and decomposed into sulfur dioxide. Tungsten trioxide can reduce the decomposition temperature of sulfate, so a thin layer of tungsten trioxide is sprinkled on the coal sample to ensure that the sulfur in the coal sample can be completely decomposed and detected by infrared.

[0057] like Figure 1-5 As shown, the siphon suction flow structure includes: a pair of S-shaped siphon suction flow tubes, a pair of set insulation sleeves, a pair of coiled electric heating tubes and two pairs of temperature sensors;

[0058] Specifically, a pair of S-shaped siphon suction pipes are respectively connected to the incineration box 1, the dehydration box 2 and the measuring box 3, a pair of the sheathed insulation sleeves are sheathed on the pair of S-shaped siphon suction pipes, a pair of the coiled electric heating tubes are respectively installed on the inner sides of the pair of sheathed insulation sleeves, and a pair of the temperature sensors are respectively installed on the pair of S-shaped siphon suction pipes, the dehydration box 2 and the inner sides of the measuring box 3.

[0059] When in use, siphon suction is performed between the incineration box 1 and the dehydration box 2, and between the dehydration box 2 and the measuring box 3 through the S-shaped siphon suction pipe, and the heat of the smoke is not lost in large quantities by installing the insulation sleeve. The coiled electric heating tube controls the temperature of the S-shaped siphon suction pipe.

[0060] like Figure 1-5 As shown, a stirring and mixing structure is provided inside the dehydrated raw material box 4;

[0061] Specifically, the stirring and mixing structure comprises: a stirring and mixing driving machine, a stirring and mixing shaft and a stirring blade;

[0062] Specifically, the stirring and mixing shaft is inserted into the dewatering raw material box 4 through a bearing, the stirring and mixing driving machine is installed on the stirring and mixing shaft, and the stirring blade is installed on the stirring and mixing shaft.

[0063] When in use, the mixing and stirring driving machine drives the mixing and stirring material to rotate, and the mixing and stirring shaft drives the stirring blades thereon, so as to achieve mixing and stirring of the dehydrating agent and tungsten trioxide.

[0064] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An infrared spectrum device for measuring total sulfur in coal based on tungsten trioxide catalysis, comprising: The incineration box, the dehydration box and the measuring box are characterized in that the incineration box is equipped with a sealing crushing structure and a sufficient incineration structure, the dehydration box is equipped with a dehydration structure, the inner side of the measuring box is equipped with a measuring structure, and the incineration box, the dehydration box and the measuring box are connected to each other through a siphon suction structure; The dehydration structure comprises: a dehydration raw material box, a quantitative transfer pipe, a trumpet-shaped drainage block, a stirring and mixing shaft tube, a stirring driving machine, a stirring gear box, a stirring disc, a plurality of stirring blades, a plurality of side wall stirring shafts, a plurality of stirring side wall discs, two pairs of side wall gear boxes, two pairs of side wall driving machines and a sealed quantitative feeding component; The dewatering raw material box is installed on the dewatering box, the quantitative transfer pipe is connected to the dewatering raw material box and the dewatering box, the sealed quantitative feeding assembly is installed on the inner side of the quantitative transfer pipe, the trumpet-shaped drainage block is inserted on the quantitative transfer pipe, the stirring and mixing shaft tube is inserted on the top of the dewatering box through a bearing, and the stirring and mixing shaft tube is sleeved on the outer side of the trumpet-shaped drainage block through a bearing, the stirring gear box is sleeved on the stirring and mixing shaft tube, the stirring driving machine is installed on the stirring gear box, and the stirring disc is sleeved on the stirring gear box. On the mixing shaft tube, several side wall stirring shafts are inserted on the side wall of the dehydration box through bearings, several stirring side wall discs are respectively installed on several side wall stirring shafts, several stirring blades are respectively installed on the stirring discs and several stirring side wall discs, two pairs of side wall gear boxes are respectively installed on the side walls of the dehydration box, and two pairs of side wall gear boxes are respectively sleeved on several side wall stirring shafts, two pairs of side wall driving machines are respectively installed on two pairs of side wall gear boxes, and the dehydration box and the incineration box are provided with a discharge structure; The discharge structure comprises: a drainage discharge pipe, a circular inclined drainage block, a disc box, a plurality of shielding arc blocks, a discharge rotating disc, a discharge shaft, a discharge driving machine, a plurality of drainage square pipes, a plurality of collecting membranes, a circular limited discharge pipe, a discharge inclined pipe, a discharge electric push rod and a push plate; The disc box is installed on the bottom end of the dehydration box, the drainage unloading pipe is inserted into the dehydration box and the disc box, the unloading shaft is inserted into the disc box through a bearing, the unloading rotating disc is installed on the unloading shaft, a plurality of the drainage square tubes are evenly inserted into the unloading rotating disc, a plurality of the collecting membranes are respectively installed on a plurality of the drainage square tubes, the unloading driving machine is connected to the unloading shaft, a plurality of the shielding arc blocks are respectively connected to a plurality of the drainage square tubes, the circular inclined drainage block is installed on the inner side of the dehydration box, the circular limit unloading pipe is inserted into the disc box, the unloading inclined pipe is inserted into the circular limit unloading pipe, the unloading electric push rod is installed on the disc box, the pushing plate is installed on the pushing end of the unloading electric push rod, and the pushing plate is directly opposite to the circular limit unloading pipe; The sealed quantitative feeding assembly comprises: a feeding electric push rod, a spoon-shaped feeding block, a feeding plate and a feeding shaft; The feeding electric push rod is installed on the inner side of the quantitative transfer tube, the spoon-shaped feeding block is movably inserted on the inner side of the quantitative transfer tube, and the spoon-shaped feeding block is connected to the pushing end of the feeding electric push rod, the feeding shaft is inserted on the feeding plate, and the feeding shaft is inserted on the spoon-shaped feeding block through a bearing; The sealed crushing structure comprises: a crushing box, a crusher, an L-shaped feeding pipe, a lifting shielding concave block, a lifting shielding electric push rod, a concave shielding block and a shielding rubber pad; The crushing box is installed on the side wall of the incineration box, the L-shaped feeding pipe is inserted into the crushing box and the incineration box, the crusher is installed on the inner side of the crushing box, the lifting and shielding concave block is inserted into the L-shaped feeding pipe, the lifting and shielding electric push rod is installed on the inner side of the lifting and shielding concave block, the concave shielding block is movably inserted into the inner side of the lifting and shielding concave block, and the concave shielding block is installed on the pushing end of the lifting and shielding electric push rod, and the shielding rubber pad is installed on the concave shielding block; The siphon suction and drainage structure comprises: a pair of S-shaped siphon suction and drainage tubes, a pair of set insulation sleeves, a pair of coiled electric heating tubes and two pairs of temperature sensors; A pair of S-shaped siphon suction pipes are respectively connected to the incineration box, the dehydration box and the measuring box, a pair of the sheathed insulation sleeves are sheathed on the pair of S-shaped siphon suction pipes, a pair of the coiled electric heating tubes are respectively installed on the inner sides of the pair of sheathed insulation sleeves, and a pair of the temperature sensors are respectively installed on the pair of S-shaped siphon suction pipes, the dehydration box and the inner sides of the measuring box.

2. The device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to claim 1 is characterized in that: The fully incineration structure comprises: an oxygen reaction box, an air pump, an air filling shunt pipe, a plurality of air filling pipes, a plurality of stirring and mixing discs, a plurality of stirring magnet blocks and a stirring and mixing driving machine; The oxygen reaction box is installed on the incineration box, the vacuum pump is installed on the oxygen reaction box, a plurality of the inflation tubes are evenly inserted on the inner side of the incineration box, the inflation diversion tube is connected to the vacuum pump, and the inflation diversion tube is connected to a plurality of the inflation tubes, the stirring and mixing driving machine is installed on the incineration box, a plurality of the stirring and mixing discs are inserted on a plurality of the inflation tubes through bearings, and the stirring and mixing discs are installed on the driving end of the stirring and mixing driving machine, a plurality of the stirring magnet blocks are respectively installed on a plurality of the stirring and mixing discs, and a plurality of exhaust ports are respectively opened at the bottom ends of a plurality of the inflation tubes.

3. The device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to claim 2 is characterized in that: The measuring structure comprises: an I-shaped glass tube, an infrared transmitter, an infrared receiver and a data recognition calculator; The infrared transmitter and the infrared receiver are installed on the inner side of the measuring box, the I-shaped glass tube is installed on the inner side of the measuring box, and the I-shaped glass tube is sleeved on the infrared transmitter and the infrared receiver, the data recognition calculator is installed on the measuring box, and the data recognition calculator is connected to the infrared receiver.

4. The device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to claim 3 is characterized in that: A stirring and mixing structure is provided inside the dehydrated raw material box; The stirring and mixing structure comprises: a stirring and mixing driving machine, a stirring and mixing shaft and a stirring blade; The stirring and mixing shaft is inserted on the dewatering raw material box through a bearing, the stirring and mixing driving machine is installed on the stirring and mixing shaft, and the stirring blade is installed on the stirring and mixing shaft.

5. A method for using a device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to any one of claims 1 to 4, comprising the following operating steps: step S1, collecting raw materials; step S2, crushing raw materials; step S3, fully burning; step S4, dehydrating smoke; step S5, infrared spectroscopy measurement; Step S1: weigh a certain amount of coal sample; Step S2: crushing the coal into powder, so as to achieve the goal of guiding the powder to the inner side of the incineration box; Step S3: stirring and burning the pulverized coal, and simultaneously oxygenating the pulverized coal so as to completely burn the pulverized coal, thereby avoiding incomplete combustion; Step S4: mixing the dehydrating agent and tungsten trioxide and sealing and draining them to the inner side of the dehydration box; Step S5: Because sulfur dioxide absorbs infrared rays, while some gas molecules such as oxygen and nitrogen do not absorb infrared rays, and the infrared absorption of gases follows Beer's law; after being processed by computer software, the sulfur content in the coal sample is obtained.

6. The method for using the device for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis according to claim 5 is characterized in that: The temperature of the smoke is controlled by a pair of coiled electric heating tubes, so that the temperature is controlled at 1250℃ and catalyzed by tungsten trioxide.

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