Device and method for determining the content of calcium sulfite hemihydrate in fly ash

Abstract

The invention discloses a measuring device and a measuring method for the content of hemihydrate calcium sulfite in fly ash, and relates to the technical field of measuring devices for calcium sulfate content. To solve the problem that the measuring device for the content of hemihydrate calcium sulfite in fly ash comprises an analytical balance, a magnetic stirrer, a glass vessel, etc., if the magnetic stirrer is not in the correct position during stirring, the stirrer will jump when rotating, resulting in a poor mixing effect, one side of the analytical balance is provided with a magnetic stirrer, one side above the magnetic stirrer is provided with a cleaning and alignment mechanism, both sides of the cleaning and alignment mechanism are symmetrically provided with cleaning and alignment mechanism screw rods, the upper end of the cleaning and alignment mechanism screw rod is provided with a fixing plate, the lower end of the middle position of the cleaning and alignment mechanism screw rod is provided with a cleaning mechanism, the middle position of the cleaning and alignment mechanism screw rod is provided with a driving rod, and both sides above the cleaning mechanism are symmetrically provided with alignment push plates.

Description

Technical Field

[0001] The invention relates to the technical field of devices for measuring calcium sulfate content, in particular to a device and method for measuring the content of calcium sulfite hemihydrate in fly ash. Background Art

[0002] Fly ash is a coal combustion product, mainly fine ash collected from the flue gas after coal combustion. It is the main solid waste discharged by coal-fired power plants. Fly ash contains a portion of calcium sulfite hemihydrate. Fly ash calcium sulfite hemihydrate is a sulfite with reduced form and instability. It is one of the important reasons for the abnormal hydration process and strength loss of cement concrete. The accuracy of the existing fly ash calcium sulfite hemihydrate detection method will affect the quality of cement concrete.

[0003] The above-mentioned prior art solutions have the following defects: the device for determining the content of calcium sulfite hemihydrate in fly ash includes an analytical balance, a magnetic stirrer and glassware, etc. If the magnetic stirrer is not in the correct position during stirring, the stirrer will jump when rotating, resulting in poor mixing effect. Therefore, we propose a device and method for determining the content of calcium sulfite hemihydrate in fly ash to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a device and method for determining the content of calcium sulfite hemihydrate in fly ash, so as to solve the problem that the device for determining the content of calcium sulfite hemihydrate in fly ash proposed in the above background technology includes an analytical balance, a magnetic stirrer and glassware, etc. If the magnetic stirrer is not in the correct position during stirring, the stirrer will jump when rotating, resulting in a poor mixing effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a device for determining the content of calcium sulfite hemihydrate in fly ash, comprising an analytical balance and a magnetic stirrer, wherein the magnetic stirrer is arranged on one side of the analytical balance, a stirring workbench is arranged at the middle position of the upper end of the magnetic stirrer, a cleaning and alignment mechanism is installed on one side above the magnetic stirrer, a cleaning and alignment mechanism screw rod is symmetrically installed on both sides of the cleaning and alignment mechanism, a fixing plate is arranged on the upper end of the cleaning and alignment mechanism screw rod, a cleaning mechanism is arranged at the lower end at the middle position of the cleaning and alignment mechanism screw rod, a driving rod is arranged at the middle position of the cleaning and alignment mechanism screw rod, and alignment push plates are symmetrically arranged on both sides above the cleaning mechanism.

[0006] Preferably, leakproof covers are fixedly installed around the mixing workbench, and sound insulation cover limit plates are symmetrically arranged on both sides of the upper end of the magnetic stirrer. The sound insulation cover limit plates are arc-shaped structures, and the upper ends of the sound insulation cover limit plates are inclined toward the side away from the mixing workbench, and the lower end of the cleaning and alignment mechanism screw rod is fixedly connected to the magnetic stirrer.

[0007] Preferably, a soundproof cover is provided above the magnetic stirrer, and a sealing gasket is provided between the inner wall of the soundproof cover limit plate and the outer wall of the lower end of the soundproof cover, and the sealing gasket is in contact with the outer wall of the lower end of the soundproof cover, and a soundproof pad is provided at the upper end of the inner side of the soundproof cover, and a temperature sensor is installed inside the soundproof cover, and the upper end of the temperature sensor extends to the outside of the soundproof cover.

[0008] Preferably, a driving block is provided on the upper end of the cleaning and alignment mechanism screw rod, and a first electric telescopic cylinder is provided between the lower part of both sides of the fixed plate and the driving block, and the first electric telescopic cylinder is respectively fixedly connected to the lower part of both sides of the fixed plate and the upper end of the driving block.

[0009] Preferably, a servo motor is arranged at the middle position above the fixed plate, the output end of the servo motor extends to the inside of the fixed plate and is transmission-connected to the driving rod through a coupling, a positioning plate is fixedly installed on the outside of the upper end of the driving rod, a movable ring is arranged below the positioning plate, and the movable ring is slidingly connected to the driving rod, a second electric telescopic cylinder is arranged between the movable ring and the positioning plate, and the upper and lower parts of the second electric telescopic cylinder are respectively fixedly connected to the movable ring and the positioning plate.

[0010] Preferably, the outer end of the movable ring is fixedly connected to the inner side of the alignment push plate through a third electric telescopic cylinder, and both ends of the third electric telescopic cylinder are respectively fixedly connected to the outer end of the movable ring and the upper end of the inner side of the alignment push plate, and the alignment push plate is an arc plate.

[0011] Preferably, a conical flask is arranged above the stirring workbench, and the lower end of the temperature sensor extends to the interior of the conical flask, and a stirring bar is arranged inside the conical flask.

[0012] Preferably, a cleaning fixed plate is provided at the middle position of the cleaning mechanism, and scrapers are symmetrically arranged on the front side of one end of the cleaning fixed plate and the rear side of the other end, and the scraper is an arc-shaped plate, and the inner wall of the scraper is in contact with the outer wall of the mixing workbench, and ten liquid guide plates are equidistantly arranged on the half side of the front side of the cleaning fixed plate close to the scraper and the half side of the rear side close to the scraper, and the end of the liquid guide plate away from the cleaning fixed plate is inclined toward the scraper direction, and sponge pads are respectively in contact with both sides of the cleaning fixed plate.

[0013] The method for determining the content of calcium sulfite hemihydrate in fly ash comprises the following steps:

[0014] Step 1: Place fly ash on an analytical balance, weigh out 1-2 grams of fly ash, place the fly ash in a dry conical flask, add 40-110 mL of water, and disperse the fly ash in the water by shaking to obtain solution 1;

[0015] Step 2: Mix concentrated hydrochloric acid and pure water in a ratio of 1:1 to obtain a hydrochloric acid solution;

[0016] Step 3: Add 15-45 mL of iodine standard titration solution to solution 1 and shake to mix thoroughly, then add 15-45 mL of hydrochloric acid solution again;

[0017] Step 4: Place the conical flask on the mixing table of the magnetic stirrer, extend the first electric telescopic cylinder, the first electric telescopic cylinder drives the fixed plate to move upward, drives the cleaning alignment mechanism screw to drive the driving block to move toward the mixing table, the driving block drives the fixed plate to move to the top of the mixing table through the first electric telescopic cylinder, and makes the center of the servo motor coincide with the center of the mixing table. At this time, extend the second electric telescopic cylinder, the second electric telescopic cylinder drives the movable ring to move downward, and the movable ring drives the alignment push plate to move downward through the third electric telescopic cylinder. At the same time, extend the third electric telescopic cylinder so that the alignment push plate is located on both sides of the upper end of the conical flask, retract the third electric telescopic cylinder to make the alignment push plate gradually approach the conical flask, and when the alignment push plate fits the conical flask, the alignment push plate pushes the conical flask. Adjust the center of the conical flask, extend the third electric telescopic cylinder to move the alignment push plate away from the conical flask, start the servo motor to drive the driving rod to rotate forty-five degrees clockwise, retract the third electric telescopic cylinder to allow the alignment push plate to push the conical flask, adjust the center of the conical flask again, extend the third electric telescopic cylinder to move the alignment push plate away from the conical flask, allow the servo motor to drive the driving rod to rotate forty-five degrees clockwise, retract the third electric telescopic cylinder to allow the alignment push plate to push the conical flask, adjust the center of the conical flask again, after three adjustments, the conical flask corresponds to the center of the stirring workbench, start the magnetic stirrer to allow the magnet in the magnetic stirrer to drive the stirrer in the conical flask to rotate, stir the solution in the conical flask, stir for 10 minutes, and then place it in a dark place for 5 minutes;

[0018] Step 5: Rinse the stopper and bottle wall with water, titrate with sodium thiosulfate standard titration solution until it turns light yellow, add 1.8-4.2mL of 10g / L starch solution, and continue titrating until the blue color disappears.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention places a conical flask on a stirring workbench of a magnetic stirrer, extends the first electric telescopic cylinder, the first electric telescopic cylinder drives the fixed plate to move upward, drives the cleaning alignment mechanism screw rod to drive the driving block to move toward the stirring workbench, and the driving block drives the fixed plate to move to the top of the stirring workbench through the first electric telescopic cylinder, so that the center of the servo motor coincides with the center of the stirring workbench. At this time, the second electric telescopic cylinder is extended, the second electric telescopic cylinder drives the movable ring to move downward, and the movable ring drives the alignment push plate to move downward through the third electric telescopic cylinder, and at the same time, the third electric telescopic cylinder is extended to make the alignment push plate located on both sides of the upper end of the conical flask, and the third electric telescopic cylinder is retracted to make the alignment push plate gradually approach the conical flask. When the alignment push plate fits the conical flask, the alignment push plate pushes the conical flask to move the center of the conical flask. Adjustment is made, and the third electric telescopic cylinder is extended to move the alignment push plate away from the conical flask. The servo motor is started to drive the driving rod to rotate forty-five degrees clockwise, and the third electric telescopic cylinder is retracted to allow the alignment push plate to push the conical flask, and the center of the conical flask is adjusted again. The third electric telescopic cylinder is extended to move the alignment push plate away from the conical flask, and the servo motor drives the driving rod to rotate forty-five degrees clockwise, and the third electric telescopic cylinder is retracted to allow the alignment push plate to push the conical flask, and the center of the conical flask is adjusted again. After three adjustments, the conical flask corresponds to the center of the mixing workbench, which solves the problem that the determination device of the hemihydrate calcium sulfite content in fly ash includes analytical balance, magnetic stirrer and glassware. If the magnetic stirrer is not in the correct position during stirring, the stirrer will jump when it rotates, resulting in poor mixing effect.

[0021] 2. After the magnetic stirrer of the present invention completes mixing, the first electric telescopic cylinder is extended, and the first electric telescopic cylinder drives the fixed plate to move upward, driving the cleaning alignment mechanism screw rod to drive the driving block to move toward the mixing workbench, and the driving block drives the fixed plate to move to the top of the mixing workbench through the first electric telescopic cylinder, so that the center of the servo motor coincides with the center of the mixing workbench, and the first electric telescopic cylinder is retracted to make the lower end of the cleaning mechanism fit with the upper end surface of the mixing workbench, and the servo motor is driven. The servo motor drives the driving rod to rotate slowly, and the driving rod drives the cleaning fixed plate to rotate counterclockwise, and the scraper of the cleaning fixed plate scrapes the outer edge of the mixing workbench to prevent the liquid dripping on the mixing workbench from flowing out. The liquid on the mixing workbench is guided by the liquid guide plate to flow to a position close to the center of the mixing workbench until the liquid contacts the sponge pad and is absorbed by the sponge pad, thereby realizing automatic treatment of the liquid remaining on the mixing workbench. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 A top view of the magnetic stirrer of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the cleaning and alignment mechanism in the present invention;

[0025] Figure 4 For the present invention Figure 3 AA direction cross-sectional view;

[0026] Figure 5 For the present invention Figure 1 A partial enlarged view of area B.

[0027] In the figure: 1. analytical balance; 2. magnetic stirrer; 3. stirring table; 4. leakproof cover; 5. sound insulation cover; 6. temperature sensor; 7. sound insulation pad; 8. cleaning and alignment mechanism; 9. sound insulation cover limit plate; 10. cleaning and alignment mechanism screw; 11. fixed plate; 12. cleaning mechanism; 13. alignment push plate; 14. stirring rod; 15. driving block; 16. first electric telescopic cylinder; 17. servo motor; 18. driving rod; 19. positioning plate; 20. second electric telescopic cylinder; 21. movable ring; 22. third electric telescopic cylinder; 24. cleaning fixed plate; 25. liquid guide plate; 26. scraper; 27. sponge pad; 28. sealing pad; 30. conical flask. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-5 An embodiment of the present invention provides: a device for determining the content of hemihydrate calcium sulfite in fly ash, comprising an analytical balance 1 and a magnetic stirrer 2, wherein the magnetic stirrer 2 is arranged on one side of the analytical balance 1, a stirring workbench 3 is arranged at the middle position of the upper end of the magnetic stirrer 2, a cleaning and alignment mechanism 8 is installed on one side above the magnetic stirrer 2, cleaning and alignment mechanism screw rods 10 are symmetrically installed on both sides of the cleaning and alignment mechanism 8, a fixing plate 11 is arranged at the upper end of the cleaning and alignment mechanism screw rod 10, a cleaning mechanism 12 is arranged at the lower end at the middle position of the cleaning and alignment mechanism screw rod 10, a driving rod 18 is arranged at the middle position of the cleaning and alignment mechanism screw rod 10, and alignment push plates 13 are symmetrically arranged on both sides above the cleaning mechanism 12.

[0030] When in use, place the conical flask on the mixing table 3 of the magnetic stirrer 2, extend the first electric telescopic cylinder 16, the first electric telescopic cylinder 16 drives the fixed plate 11 to move upward, drives the cleaning alignment mechanism screw 10 to drive the driving block 15 to move toward the mixing table 3, the driving block 15 drives the fixed plate 11 to move to the top of the mixing table 3 through the first electric telescopic cylinder 16, and makes the center of the servo motor 17 coincide with the center of the mixing table 3. At this time, extend the second electric telescopic cylinder 20, the second electric telescopic cylinder 20 drives the movable ring 21 to move downward, the movable ring 21 drives the alignment push plate 13 to move downward through the third electric telescopic cylinder 22, and at the same time, extend the third electric telescopic cylinder 22 so that the alignment push plate 13 is located on both sides of the upper end of the conical flask 30, and retract the third electric telescopic cylinder 22 so that the alignment push plate 13 gradually approaches the conical flask. 30. When the alignment push plate 13 fits with the conical flask 30, the alignment push plate 13 pushes the conical flask 30 to adjust the center of the conical flask 30, and then the third electric telescopic cylinder 22 is extended to move the alignment push plate 13 away from the conical flask 30. The servo motor 17 is started to drive the driving rod 18 to rotate forty-five degrees clockwise, and then the third electric telescopic cylinder 22 is retracted to push the alignment push plate 13 to push the conical flask 30 to adjust the center of the conical flask 30 again. The third electric telescopic cylinder 22 is extended again to move the alignment push plate 13 away from the conical flask 30, and the servo motor 17 drives the driving rod 18 to rotate forty-five degrees clockwise, and then the third electric telescopic cylinder 22 is retracted to push the alignment push plate 13 to push the conical flask 30 to adjust the center of the conical flask 30 again. After three adjustments, the conical flask 30 corresponds to the center of the mixing workbench 3.

[0031] See also Figure 1-2 A leakproof cover 4 is fixedly installed around the stirring workbench 3, and sound insulation cover limit plates 9 are symmetrically arranged on both sides of the upper end of the magnetic stirrer 2. The sound insulation cover limit plates 9 are arc-shaped structures, and the upper ends of the sound insulation cover limit plates 9 are inclined to the side away from the stirring workbench 3, and the lower end of the cleaning and alignment mechanism screw rod 10 is fixedly connected to the magnetic stirrer 2.

[0032] See also Figure 1 and Figure 5 A soundproof cover 5 is arranged above the magnetic stirrer 2, and a sealing gasket 28 is arranged between the inner wall of the soundproof cover limit plate 9 and the outer wall of the lower end of the soundproof cover 5, and the sealing gasket 28 is in contact with the outer wall of the lower end of the soundproof cover 5, and a soundproof pad 7 is arranged at the upper end of the inner side of the soundproof cover 5, and a temperature sensor 6 is installed inside the soundproof cover 5, and the upper end of the temperature sensor 6 extends to the outside of the soundproof cover 5.

[0033] See also Figure 2-4A driving block 15 is provided at the upper end of the cleaning and alignment mechanism screw rod 10, and a first electric telescopic cylinder 16 is provided between the lower part of both sides of the fixed plate 11 and the driving block 15. The first electric telescopic cylinder 16 is respectively fixedly connected to the lower part of both sides of the fixed plate 11 and the upper end of the driving block 15. A servo motor 17 is provided at the middle position above the fixed plate 11. The output end of the servo motor 17 extends to the interior of the fixed plate 11 and is connected to the driving rod 18 through a coupling. A positioning plate 19 is fixedly installed on the outside of the upper end of the driving rod 18, and a movable ring 21 is provided below the positioning plate 19, and the movable ring 21 is slidably connected to the driving rod 18. A second electric telescopic cylinder 20 is provided between the movable ring 21 and the positioning plate 19, and the upper and lower parts of the second electric telescopic cylinder 20 are respectively fixedly connected to the movable ring 21 and the positioning plate 19.

[0034] See also Figure 2-4 The outer end of the movable ring 21 is fixedly connected to the inner side of the alignment push plate 13 through the third electric telescopic cylinder 22. The two ends of the third electric telescopic cylinder 22 are respectively fixedly connected to the outer end of the movable ring 21 and the upper end of the inner side of the alignment push plate 13. The alignment push plate 13 is an arc plate.

[0035] See also Figure 1 A conical flask 30 is disposed above the stirring workbench 3 , and the lower end of the temperature sensor 6 extends to the interior of the conical flask 30 , and a stirring bar 14 is disposed inside the conical flask 30 .

[0036] See also Figure 2-4 A cleaning fixed plate 24 is provided at the middle position of the cleaning mechanism 12, and scrapers 26 are symmetrically provided on the front side of one end of the cleaning fixed plate 24 and the rear side of the other end, and the scraper 26 is an arc-shaped plate, and the inner wall of the scraper 26 is in contact with the outer wall of the mixing workbench 3. Ten liquid guide plates 25 are equidistantly provided on the half side of the front side of the cleaning fixed plate 24 close to the scraper 26 and the half side of the rear side close to the scraper 26. The end of the liquid guide plate 25 away from the cleaning fixed plate 24 is inclined toward the scraper 26, and sponge pads 27 are respectively in contact with both sides of the cleaning fixed plate 24.

[0037] The method for determining the content of calcium sulfite hemihydrate in fly ash comprises the following steps:

[0038] Step 1: Place fly ash on an analytical balance 1, weigh out 1-2 grams of fly ash, place the fly ash in a dry conical flask, add 40-110 mL of water, and disperse the fly ash in the water by shaking to obtain a solution 1;

[0039] Step 2: Mix concentrated hydrochloric acid and pure water in a ratio of 1:1 to obtain a hydrochloric acid solution;

[0040] Step 3: Add 15-45 mL of iodine standard titration solution to solution 1 and shake to mix thoroughly, then add 15-45 mL of hydrochloric acid solution again;

[0041] Step 4: Place the conical flask on the mixing table 3 of the magnetic stirrer 2, extend the first electric telescopic cylinder 16, the first electric telescopic cylinder 16 drives the fixed plate 11 to move upward, drives the cleaning alignment mechanism screw 10 to drive the driving block 15 to move toward the mixing table 3, the driving block 15 drives the fixed plate 11 to move to the top of the mixing table 3 through the first electric telescopic cylinder 16, and makes the center of the servo motor 17 coincide with the center of the mixing table 3. At this time, extend the second electric telescopic cylinder 20, the second electric telescopic cylinder 20 drives the movable ring 21 to move downward, the movable ring 21 drives the alignment push plate 13 to move downward through the third electric telescopic cylinder 22, and at the same time extend the third electric telescopic cylinder 22 so that the alignment push plate 13 is located on both sides of the upper end of the conical flask 30, retract the third electric telescopic cylinder 22 so that the alignment push plate 13 gradually approaches the conical flask 30, and when the alignment push plate 13 fits the conical flask 30, the alignment push plate 13 is pressed against the conical flask 30 Push to adjust the center of the conical flask 30, then extend the third electric telescopic cylinder 22 to let the alignment push plate 13 away from the conical flask 30, start the servo motor 17 to drive the driving rod 18 to rotate forty-five degrees clockwise, and then retract the third electric telescopic cylinder 22 to let the alignment push plate 13 push the conical flask 30, and adjust the center of the conical flask 30 again, then extend the third electric telescopic cylinder 22 to let the alignment push plate 13 away from the conical flask 30, let the servo motor 17 drive the driving rod 18 to rotate forty-five degrees clockwise, retract the third electric telescopic cylinder 22 to let the alignment push plate 13 push the conical flask 30, and adjust the center of the conical flask 30 again. After three adjustments, the conical flask 30 corresponds to the center of the stirring workbench 3, start the magnetic stirrer 2, let the magnet in the magnetic stirrer 2 drive the stirrer 14 in the conical flask 30 to rotate, and stir the solution in the conical flask 30 for 10 minutes, and then place it in a dark place for 5 minutes;

[0042] Step 5: Rinse the stopper and bottle wall with water, titrate with sodium thiosulfate standard titration solution until it turns light yellow, add 1.8-4.2mL of 10g / L starch solution, and continue titrating until the blue color disappears.

[0043] Working principle: After the mixing is completed, the first electric telescopic cylinder 16 is extended, and the first electric telescopic cylinder 16 drives the fixed plate 11 to move upward, and drives the cleaning alignment mechanism screw rod 10 to drive the driving block 15 to move toward the mixing table 3. The driving block 15 drives the fixed plate 11 to move to the top of the mixing table 3 through the first electric telescopic cylinder 16, so that the center of the servo motor 17 coincides with the center of the mixing table 3, and the first electric telescopic cylinder 16 is retracted to make the lower end of the cleaning mechanism 12 fit with the upper end surface of the mixing table 3, and drive the servo motor 17. The servo motor 17 drives the driving rod 18 to rotate slowly, and the driving rod 18 drives the cleaning fixed plate 24 to rotate counterclockwise. The scraper 26 of the cleaning fixed plate 24 scrapes the outer edge of the mixing table 3 to prevent the liquid dripping on the mixing table 3 from flowing out. The liquid on the mixing table 3 is guided by the liquid guide plate 25 to flow to a position close to the center of the mixing table 3 until the liquid contacts the sponge pad 27 and is absorbed by the sponge pad 27, thereby realizing automatic processing of the residual liquid on the mixing table 3.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for determining the content of calcium sulfite hemihydrate in fly ash, comprising an analytical balance (1) and a magnetic stirrer (2), characterized in that: A magnetic stirrer (2) is arranged on one side of the analytical balance (1), a stirring workbench (3) is arranged at the middle position of the upper end of the magnetic stirrer (2), a cleaning and alignment mechanism (8) is installed on one side above the magnetic stirrer (2), cleaning and alignment mechanism screw rods (10) are symmetrically installed on both sides of the cleaning and alignment mechanism (8), a fixing plate (11) is arranged at the upper end of the cleaning and alignment mechanism screw rod (10), a cleaning mechanism (12) is arranged at the lower end of the middle position of the cleaning and alignment mechanism screw rod (10), a driving rod (18) is arranged at the middle position of the cleaning and alignment mechanism screw rod (10), and alignment push plates (13) are symmetrically arranged on both sides above the cleaning mechanism (12); The upper end of the cleaning and alignment mechanism screw rod (10) is provided with a driving block (15), and a first electric telescopic cylinder (16) is provided between the lower part of both sides of the fixed plate (11) and the driving block (15), and the first electric telescopic cylinder (16) is respectively fixedly connected to the lower part of both sides of the fixed plate (11) and the upper end of the driving block (15); A servo motor (17) is arranged at a middle position above the fixed plate (11); an output end of the servo motor (17) extends to the inside of the fixed plate (11) and is transmission-connected to a driving rod (18) via a coupling; a positioning plate (19) is fixedly mounted on the outside of the upper end of the driving rod (18); a movable ring (21) is arranged below the positioning plate (19), and the movable ring (21) is slidably connected to the driving rod (18); a second electric telescopic cylinder (20) is arranged between the movable ring (21) and the positioning plate (19); the upper and lower parts of the second electric telescopic cylinder (20) are fixedly connected to the movable ring (21) and the positioning plate (19), respectively; The outer end of the movable ring (21) is fixedly connected to the inner side of the alignment push plate (13) via a third electric telescopic cylinder (22), and the two ends of the third electric telescopic cylinder (22) are respectively fixedly connected to the outer end of the movable ring (21) and the upper end of the inner side of the alignment push plate (13), and the alignment push plate (13) is an arc plate; A cleaning fixed plate (24) is arranged at the middle position of the cleaning mechanism (12); a scraper (26) is symmetrically arranged on the front side of one end of the cleaning fixed plate (24) and the rear side of the other end; the scraper (26) is an arc-shaped plate, and the inner wall of the scraper (26) is in contact with the outer wall of the stirring workbench (3); ten liquid guide plates (25) are equidistantly arranged on the half side of the front side of the cleaning fixed plate (24) close to the scraper (26) and the half side of the rear side close to the scraper (26); one end of the liquid guide plate (25) away from the cleaning fixed plate (24) is inclined toward the scraper (26); and sponge pads (27) are respectively in contact with the two sides of the cleaning fixed plate (24).

2. The device for measuring the content of calcium sulfite hemihydrate in fly ash according to claim 1, characterized in that: A conical flask (30) is arranged above the stirring workbench (3), and the lower end of the temperature sensor (6) extends into the interior of the conical flask (30). A stirring rod (14) is arranged inside the conical flask (30).

3. The measuring method based on the measuring device of calcium sulfite hemihydrate content in fly ash according to claim 2 is characterized in that: The following steps are involved: Step 1: Place fly ash on an analytical balance (1), weigh out 1-2 g of fly ash, place the fly ash in a dry conical flask, add 40-110 mL of water, and disperse the fly ash in the water by shaking to obtain a solution 1; Step 2: Mix concentrated hydrochloric acid and pure water in a ratio of 1:1 to obtain a hydrochloric acid solution; Step 3: Add 15-45 mL of iodine standard titration solution to solution 1 and shake to mix thoroughly, then add 15-45 mL of hydrochloric acid solution again; Step 4: Place the conical flask on the stirring table (3) of the magnetic stirrer (2), extend the first electric telescopic cylinder (16), and the first electric telescopic cylinder (16) drives the fixed plate (11) to move upward, driving the cleaning alignment mechanism screw rod (10) to drive the driving block (15) to move toward the stirring table (3). The driving block (15) drives the fixed plate (11) to move to the top of the stirring table (3) through the first electric telescopic cylinder (16), so that the center of the servo motor (17) coincides with the center of the stirring table (3). At this time, The second electric telescopic cylinder (20) is extended, and the second electric telescopic cylinder (20) drives the movable ring (21) to move downward. The movable ring (21) drives the alignment push plate (13) to move downward through the third electric telescopic cylinder (22). At the same time, the third electric telescopic cylinder (22) is extended to allow the alignment push plate (13) to be located on both sides of the upper end of the conical bottle (30). The third electric telescopic cylinder (22) is retracted to allow the alignment push plate (13) to gradually approach the conical bottle (30). When the alignment push plate (13) and the conical bottle (30) are in contact, the alignment push plate (13) is pressed against the conical bottle ( The third electric telescopic cylinder (22) is extended to move the alignment push plate (13) away from the conical bottle (30), the servo motor (17) is started to drive the driving rod (18) to rotate forty-five degrees clockwise, and the third electric telescopic cylinder (22) is retracted to move the alignment push plate (13) to push the conical bottle (30), and the center of the conical bottle (30) is adjusted again, and the third electric telescopic cylinder (22) is extended to move the alignment push plate (13) away from the conical bottle (30), and the servo motor (17) is started to move the driving rod (18) clockwise. ) while driving the driving rod (18) to rotate forty-five degrees clockwise, the third electric telescopic cylinder (22) is retracted to allow the alignment push plate (13) to push the conical flask (30), and the center of the conical flask (30) is adjusted again. After three adjustments, the conical flask (30) corresponds to the center of the stirring workbench (3), and the magnetic stirrer (2) is started to allow the magnet in the magnetic stirrer (2) to drive the stirring rod (14) in the conical flask (30) to rotate, and the solution in the conical flask (30) is stirred for 10 minutes, and then placed in a dark place to stand for 5 minutes; Step 5: Rinse the stopper and bottle wall with water, titrate with sodium thiosulfate standard titration solution until it turns light yellow, add 1.8-4.2mL of 10g / L starch solution, and continue titrating until the blue color disappears.

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