Inhibitor batching and conveying system for silicon steel production spraying and batching method

Abstract

The invention discloses an inhibitor ingredient conveying system for silicon steel production spraying. The inhibitor ingredient conveying system comprises a feeding system, an automatic metering storage system and a stirring system. The feeding system comprises a feeding box body, an ultrasonic rotary vibration sieve and a discharging pipe; the automatic metering storage system comprises a storage tank, a storage sealing cover plate, a storage stirring motor, an anchor frame type stirrer, a spiral conveyor and an ingredient conveying motor, a feeding one-way valve is installed on the storage sealing cover plate, and the feeding one-way valve is connected with a discharging pipe; the stirring system comprises a stirring barrel, an ingredient stirring motor and a bent blade disc turbine connected with an output shaft of the ingredient stirring motor, and the feeding guide connecting pipe and the ingredient water pipe are both communicated with the stirring barrel. Related process parameters in the ingredient stirring process are controlled in combination with the hydration characteristics of the inhibitor, the inhibitor powder is prevented from caking in the storage and use processes, the ingredient amount can be accurately measured, stable and reliable raw material guarantee is provided for an automatic spraying system, and the problem that the inhibitor ingredients are prone to caking to block a pipeline is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of silicon steel production, and particularly relates to an inhibitor batching conveying system and a batching method for spraying during silicon steel production. Background Art

[0002] During the annealing process of silicon steel coils in an annular furnace, in order to inhibit the risk of edge cracking caused by the coarsening of edge grains during annealing, generally a layer of inhibitor is applied before annealing on the end faces of the coils. The inhibitor is a mixture of various materials such as magnesium oxide and boric acid, and when mixed with water, it is a non-Newtonian fluid, which is prone to rapid solidification, and its viscosity and physical property parameters are uncontrollable, and it is easy to block systems such as batching tanks, pipelines, and spraying nozzles. In recent years, the Technology Center of WISCO Co., Ltd. has explored and developed automatic spraying equipment related to inhibitors, and encountered great challenges. Especially due to the precipitation of inhibitors when reacting with air, water, etc., the precipitates will be transported together with the materials, resulting in these precipitates remaining inside the batching pipeline, thus affecting the normal use of the pipeline. At present, there is no stable and reliable automatic spraying device on the silicon steel production line. Manual application of inhibitors has a high labor intensity, poses risks to human occupational health, and the application quality is inconsistent, affecting the quality of silicon steel. There is an urgent need to develop an automated batching system for mixed inhibitors for spraying on the end faces of silicon steel coils and related batching methods to solve the problem that inhibitor batching is prone to caking and blocking pipelines. Summary of the Invention

[0003] The purpose of the present invention is to solve the above technical problems and provide an inhibitor batching conveying system and a batching method for spraying during silicon steel production, in which the inhibitor is not prone to caking and does not block pipelines.

[0004] To achieve the above purpose, the present invention provides an inhibitor batching conveying system for spraying during silicon steel production, including a feeding system, an automatic metering and storage system, and a stirring system; the feeding system includes a feeding box body, an ultrasonic rotary vibrating screen located directly below the screen of the feeding box body, and a feeding pipe connected to the fine discharge port of the ultrasonic rotary vibrating screen; the automatic metering and storage system includes a storage tank, a storage sealing cover plate installed above the storage tank, a storage stirring motor installed on the storage sealing cover plate, an anchor frame type stirrer built in the storage tank, a screw conveyor communicated with the lower part of the storage tank, and a batching conveying motor for driving the screw conveyor. An inlet one-way valve is installed on the storage sealing cover plate, and the inlet one-way valve is connected to the feeding pipe; the output end of the storage stirring motor is connected to the anchor frame type stirrer, and the screw conveyor quantitatively sends the inhibitor powder into the stirring system through a feeding guide pipe under the drive of the batching conveying motor; the stirring system includes a stirring barrel, a batching stirring motor, a curved blade disk turbine connected to the output shaft of the batching stirring motor, and a three-way discharge valve arranged at the bottom of the stirring barrel. The feeding guide pipe and the batching water pipe are both communicated with the stirring barrel.

[0005] Further, a dust removal fan is arranged on the feeding box body, and a dust removal cloth bag is arranged at the air inlet of the dust removal fan; an air receiver is arranged on the outer side wall of the feeding box body, one end of the back blowing pipe is communicated with the air receiver, and the other end extends into the feeding box body and is close to the dust removal cloth bag; when the dust removal cloth bag is cleaned by back blowing, the solenoid valve on the back blowing pipe is opened, and the air flow in the air receiver blows the dust on the outer surface of the dust removal cloth bag through the back blowing pipe.

[0006] Further, three weighing brackets are evenly installed on the tank body of the storage tank, and are pressed above three metering sensors through the weighing brackets for weighing and metering the inhibitor powder in the storage tank.

[0007] Further, a spiral air pipe is installed on the inner wall of the storage tank, and a number of small holes are opened at different positions of the spiral air pipe in the storage tank body. The spiral air pipe is connected with the air inlet pipe, and a gas shut-off valve is arranged on the air inlet pipe; a gas safety valve is also installed on the storage sealing cover plate.

[0008] Further, the guiding connecting pipe passes through the stirring barrel cover and the anti-spray plate of the stirring barrel to connect the screw conveyor with the stirring barrel, and the inhibitor powder is fed into the stirring barrel through the guiding connecting pipe; the dosing water pipe passes through the stirring barrel cover and the anti-spray plate to inject water into the stirring barrel to be mixed with the inhibitor powder, and a water distribution flow meter for controlling the water injection amount is arranged on the dosing water pipe.

[0009] Further, a stirring barrel seal is installed between the stirring barrel cover and the stirring barrel for sealing, and the anti-spray plate is located between the stirring barrel cover and the stirring barrel.

[0010] Further, the dosing stirring motor is fixed on the support platform, the stirring barrel is fixed on the lifting connecting block, and can move up and down under the drive of the lifting motion device; the dosing water pipe is fixed on the support platform.

[0011] A dosing method for the inhibitor dosing and conveying system for silicon steel production spraying as described above is also provided, which is specifically as follows:

[0012] 1) Before operation, preliminarily calculate the inhibitor loading amount according to the coil diameter of the silicon steel coil on the production line and the production efficiency of the current shift, and load the inhibitor into the feeding box body; the total inhibitor loading amount = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor * number of steel coils produced in the current shift, the empirical coefficient is 1.3 - 1.5 m, and the reference amount of inhibitor is 5 - 7 kg;

[0013] 2) After the steel coil on the production line is planned to be taken off the line, calculate the dosing weight of the inhibitor, the inhibitor dosing weight = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor;

[0014] 3) The stirring process of the inhibitor ingredients in the stirring tank is carried out in three steps: pre-dissolution stirring, full mixing stirring, and stirring tank flushing.

[0015] Further, the specific process of step 3) is as follows: During pre-dissolution stirring, water with a temperature below 5°C is injected into the stirring tank in an appropriate amount according to the weight ratio of inhibitor to water of 3:1 to 3:3, controlled by the water distribution flowmeter. The mixing and stirring motor is started to drive the curved vane disc turbine to rotate. The circumferential speed of the vane disc turbine is 0.5 - 1.0 m / s. The screw conveyor connected to the bottom of the storage tank is started, and under the drive of the ingredient conveying motor set, the inhibitor powder is quantitatively sent into the stirring tank through the feeding guide connecting pipe, and the weight of the storage tank is dynamically monitored by the metering sensor. When the weight of the inhibitor ingredients sent into the stirring tank reaches the target requirement, the screw conveyor feeding is stopped, and the pre-dissolution stirring time is 5 - 10 minutes.

[0016] During the full mixing stirring stage, water with a temperature below 5°C is supplemented into the stirring tank through the control of the water distribution flowmeter. When the total weight ratio of the inhibitor ingredients to water reaches 3:4 to 3:5, the mixing and stirring motor is started to drive the curved vane disc turbine to rotate. The circumferential speed of the vane disc turbine is 1.0 - 2.0 m / s, and the full mixing stirring time is 8 - 12 minutes. After stirring is completed, the inhibitor ingredients stirring and mixing solution is sent into the spraying system through the three-way discharge valve.

[0017] After the spraying of the inhibitor mixed solution in the stirring tank is completed, it enters the stirring tank flushing stage. Water with a temperature below 5°C is injected into the stirring tank through the control of the water distribution flowmeter, and the injection volume is 8 - 10 L. The mixing and stirring motor is started to drive the curved vane disc turbine to rotate. The circumferential speed of the vane disc turbine is 2.0 - 3.0 m / s. After stirring for 3 - 5 minutes, the water is discharged into the sewage system through the three-way discharge valve.

[0018] Further, during the pre-dissolution stirring in step 3), the inlet pipe is connected to industrial nitrogen. During the operation process, every 1 - 2 hours, the gas shut-off valve is opened to inject industrial nitrogen into the storage tank through several small holes in the spiral gas pipe. At the same time, the storage stirring motor is started, and the anchor frame stirrer rotates in the storage tank driven by the storage stirring motor to stir the inhibitor powder. The circumferential speed of the outer edge of the anchor frame stirrer is 0.2 - 0.5 m / s. After 8 - 12 minutes of opening the gas shut-off valve and the anchor frame stirrer, they are stopped.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention combines the hydration characteristics of the inhibitor to control the relevant process parameters of the ingredient stirring process, prevents the inhibitor powder from caking during storage and use, and can accurately measure the ingredient quantity, providing a stable and reliable raw material guarantee for the automatic spraying system, and solving the problem that the inhibitor ingredients are prone to caking and blocking the pipeline. Description of the Drawings

[0020] Figure 1 Schematic diagram of the inhibitor batching conveying system for silicon steel production spraying

[0021] Figure 2 is Figure 1 schematic diagram in another direction of

[0022] Figure 3 is Figure 1 sectional schematic diagram of

[0023] In the figure: 1 dust removal fan; 2 feeding box body; 3 upward turning door; 4 screen; 5 dust removal cloth bag; 6 air bag; 7 back blowing pipe; 8 solenoid valve; 9 ultrasonic vibrating screen; 10 coarse discharge port; 11 fine discharge port; 12 blanking pipe; 13 inlet check valve; 14 storage material sealing cover plate; 15 storage material stirring motor; 16 gas safety valve; 17 weighing support; 18 metering sensor; 19 storage tank; 20 gas shut-off valve; 21 inlet pipe; 22 batching conveying motor; 23 screw conveyor; 24 feeding guide connection pipe; 25 batching stirring motor; 26 water distribution flowmeter; 27 batching water pipe; 28 stirring barrel cover; 29 stirring barrel seal; 30 stirring barrel; 31 three-way discharge valve; 32 lifting connection block; 33 support platform; 34 lifting motion device; 35 spiral air pipe; 36 anchor frame type stirrer; 37 anti-spray plate; 38 curved blade disk turbine Specific embodiments

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments

[0025] As Figures 1 to 3 shown, the inhibitor batching conveying system for silicon steel production spraying includes a feeding system, an automatic metering and storage system and a stirring system

[0026] The feeding system includes a feeding box body 2, a dust removal fan 1 arranged on the feeding box body 2, a dust removal cloth bag 5 arranged at the air inlet of the dust removal fan 1, an ultrasonic rotary vibrating screen 9 (single layer) located directly below the screen 4 of the feeding box body 2, and a feeding pipe 12 connected to the fine discharge port 11 of the ultrasonic rotary vibrating screen 9; for the bagged inhibitor powder, during the feeding operation, open the upward-opening door 3 of the feeding box body 2 and the dust removal fan set 1, unpack the inhibitor powder by manual or robotic arm, and load the inhibitor powder into the feeding box body 2. The dust removal fan 1 acts through the dust removal cloth bag 5 to prevent dust from flying. The inhibitor powder sinks into the ultrasonic vibrating screen (single layer) 9 under the action of gravity through the screen 4 of the feeding box body 2. After loading is completed, close the upward-opening door 3 and start the ultrasonic rotary vibrating screen (single layer) 9, so that the fine particulate matter in the inhibitor powder can quickly pass through the screen 4 and enter the feeding pipe 12 from the fine discharge port 11. The coarse discharge port 10 of the ultrasonic rotary vibrating screen 9 is used to discharge the inhibitor powder with a larger particle size that has not passed through the screen after screening and is not used for production. An air bag 6 is arranged on the outer side wall of the feeding box body 2. One end of the backflush pipe 7 is connected to the air bag 6, and the other end extends into the feeding box body 2 near the dust removal cloth bag 5. When the dust removal cloth bag 5 needs to be backflushed and cleaned, open the solenoid valve 8 on the backflush pipe 7, and the air flow in the air bag 6 blows the dust on the outer surface of the dust removal cloth bag 5 through the backflush pipe 7.

[0027] The automatic metering and storage system includes a storage tank 19, a storage sealing cover plate 14 installed above the storage tank 19, a storage stirring motor 15 installed on the storage sealing cover plate 14, an anchor frame type stirrer 36 built in the storage tank 19, a screw conveyor 23 communicated with the lower part of the storage tank 19, and a batching conveying motor 22 for driving the screw conveyor 23. Three weighing brackets 17 are evenly installed on the tank body of the storage tank 19 and are pressed above three metering sensors 18 for weighing and metering the inhibitor powder in the storage tank 19. A gas safety valve 16 and a feed check valve 13 are installed on the storage sealing cover plate 14. The feed check valve 13 is connected to a feed pipe 12. The inhibitor powder flowing through the feed pipe 12 enters the storage tank 19 through the feed check valve 13 and cannot flow back under the action of the check valve 13. The output end of the storage stirring motor 15 is connected to the anchor frame type stirrer 36. The anchor frame type stirrer 36 rotates in the storage tank 19 driven by the storage stirring motor 15 to stir the inhibitor powder (the peripheral speed of the outer edge of the anchor frame type stirrer 36 is 0.2 - 0.5 m / s). The screw conveyor 23 quantitatively sends the inhibitor powder into the stirring bucket 30 of the stirring system through a feed guiding connecting pipe 24 under the drive of the batching conveying motor 22. The feed guiding connecting pipe 24 and the stirring bucket 30 are of flexible connection and do not affect the automatic metering of the weight of the storage system. A spiral air pipe 35 is installed on the inner wall of the storage tank 19. A number of tiny holes are opened at different positions of the spiral air pipe 35 in the storage tank 19 body. The spiral air pipe 35 is connected to an air inlet pipe 21. A gas shut-off valve 20 is arranged on the air inlet pipe 21. By opening the gas shut-off valve 20, a certain flow of industrial nitrogen is controlled to enter the spiral air pipe 35, and the air flow enters the storage tank 19 through a number of tiny holes on the spiral air pipe 35 to dry the inhibitor powder. When the gas pressure in the storage tank 19 is too high, the gas safety valve 16 on the storage sealing cover plate 14 automatically opens to relieve the pressure.

[0028] The mixing system includes a mixing barrel 30, a batching and mixing motor 25, a curved vane disc turbine 38 connected to the output shaft of the batching and mixing motor 25, and a three-way discharge valve 31 arranged at the bottom of the mixing barrel 30. The batching and mixing motor 25 is fixed on a support platform 33, and the mixing barrel 30 is fixed on a lifting connection block 32 and can move up and down under the drive of a lifting motion device 34; a guide pipe 24 passes through the mixing barrel cover 28 of the mixing barrel 30 and a splash guard 37 to connect the screw conveyor 23 with the mixing barrel 30, and the inhibitor powder is fed into the mixing barrel 30 through the guide pipe 24; a batching water pipe 27 is fixed on the support platform 33, and the batching water pipe 27 passes through the mixing barrel cover 28 and the splash guard 37 to inject water into the mixing barrel 30 to mix with the inhibitor powder. A water distribution flow meter 26 for controlling the water injection amount is arranged on the batching water pipe 27. In this embodiment, a mixing barrel seal 29 is installed between the mixing barrel cover 28 and the mixing barrel 30 for sealing, and at the same time, the splash guard 37 is located between the mixing barrel cover 28 and the mixing barrel 30 to prevent the inhibitor powder and water mixture from splashing during the mixing process.

[0029] The specific batching method is as follows:

[0030] In the production of silicon steel, the inhibitor is sprayed on the end face of the silicon steel coil to improve the insulation performance, magnetic performance and subsequent processing performance of the silicon steel.

[0031] 1) Before operation, the inhibitor is composed of powders such as magnesium oxide and boric acid mixed in a certain proportion and transported to the production site in 20-kg bags. According to the coil diameter of the silicon steel coil on the production line and the production efficiency of the current shift, the inhibitor loading amount is preliminarily calculated, and the inhibitor is loaded into the feeding box 2. The total inhibitor loading amount = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor * number of silicon steel coils produced in the current shift. The empirical coefficient is 1.3 - 1.5 m, and the reference amount of inhibitor is 5 - 7 kg.

[0032] 2) After the steel coil on the production line is planned to be taken off the line, calculate the batching weight of the inhibitor. The batching weight of the inhibitor = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor.

[0033] 3) The mixing process of the inhibitor batching in the mixing barrel 30 is carried out in three steps: pre-dissolution mixing, full mixing and mixing barrel flushing.

[0034] During pre-dissolution stirring, according to the weight ratio of inhibitor to water of 3:1 to 3:3, through the control of the water distribution flowmeter 26, an appropriate amount of water with a temperature below 5°C is injected into the stirring tank 30, and the batching stirring motor 25 is started to drive the curved vane disc turbine 38 to rotate. The speed of the curved vane disc turbine 38 is set to medium and low speed to prevent the magnesium oxide powder from flying and agglomerating. The circumferential speed is 0.5 to 1.0 m / s, and the screw conveyor 23 connected to the lower part of the storage tank 19 is started. Under the drive of the batching conveyor motor set 22, the inhibitor powder is quantitatively sent into the stirring tank 30 through the feeding guide pipe 24, and the weighing sensor 18 is used to dynamically monitor the weight of the storage tank 19 to accurately control the weight of the inhibitor sent into the stirring tank 30. When the weight of the inhibitor batching sent into the stirring tank 30 reaches the target requirement, the feeding of the screw conveyor 23 is stopped. The pre-dissolution stirring time is generally 5 to 10 minutes.

[0035] During the full mixing and stirring stage, through the control of the water distribution flowmeter 26, water with a temperature below 5°C is supplemented into the stirring tank 30 until the total weight ratio of the inhibitor batching to water reaches 3:4 to 3:5. Then, the batching stirring motor 25 is started to drive the curved vane disc turbine 38 to rotate. The speed of the curved vane disc turbine 38 can be set to medium and high speed, and the circumferential speed is 1.0 to 2.0 m / s. The full mixing and stirring time is generally 8 to 12 minutes. After stirring is completed, the inhibitor batching stirring and mixing solution is sent into the spraying system through the three-way discharge valve 31.

[0036] After the spraying of the inhibitor mixed solution in the stirring tank 30 is completed, it enters the stirring tank flushing stage. Through the control of the water distribution flowmeter 26, water with a temperature below 5°C is injected into the stirring tank 30, and the injection volume is 8 to 10 L. Then, the batching stirring motor 25 is started to drive the curved vane disc turbine 38 to rotate. The speed of the curved vane disc turbine 38 can be set to medium and high speed, and the circumferential speed is 2.0 to 3.0 m / s. After stirring for 3 to 5 minutes, the water is discharged into the sewage system through the three-way discharge valve 31.

[0037] To prevent the inhibitor powder from caking during storage and use, the inlet pipe 21 is connected to industrial nitrogen (0.4 bar, 10 to 25°C). During the operation process, every 1 to 2 hours, the gas cut-off valve 20 is opened to inject industrial nitrogen into the storage tank 19 through several small holes of the spiral gas pipe 35. At the same time, the storage stirring motor 15 is started, so that the anchor frame stirrer 36 rotates in the storage tank 19 under the drive of the storage stirring motor 15 to stir the inhibitor powder. The circumferential speed of the outer edge of the anchor frame stirrer 36 is 0.2 to 0.5 m / s. After the gas cut-off valve 20 and the anchor frame stirrer 36 are opened for 8 to 12 minutes, they are stopped.

Claims

1. An inhibitor batching and conveying system for silicon steel production spraying, characterized in that: It includes a feeding system, an automatic metering and storage system, and a mixing system; the feeding system includes a feeding box body (2), an ultrasonic rotary vibrating screen (9) located directly below the screen (4) of the feeding box body (2), and a feeding pipe (12) connected to the fine discharge port (11) of the ultrasonic rotary vibrating screen (9); the automatic metering and storage system includes a storage tank (19), a storage sealing cover plate (14) installed above the storage tank (19), a storage stirring motor (15) installed on the storage sealing cover plate (14), an anchor frame type stirrer (36) built in the storage tank (19), a screw conveyor (23) connected to the lower part of the storage tank (19), and a batching and conveying motor (22) for driving the screw conveyor (23). An inlet check valve (13) is installed on the storage sealing cover plate (14), and the inlet check valve (13) is connected to the feeding pipe (12); the output end of the storage stirring motor (15) is connected to the anchor frame type stirrer (36). The screw conveyor (23) feeds the inhibitor powder into the mixing system through a feeding guide connecting pipe (24) under the drive of the batching and conveying motor (22); the mixing system includes a mixing barrel (30), a batching and mixing motor (25), a curved blade disk turbine (38) connected to the output shaft of the batching and mixing motor (25), and a three-way discharge valve (31) arranged at the bottom of the mixing barrel (30). The feeding guide connecting pipe (24) and the batching water pipe (27) are both connected to the mixing barrel (30).

2. The inhibitor batching and conveying system for silicon steel production spraying according to claim 1, characterized in that: A dust removal fan (1) is arranged on the feeding box body (2), and a dust removal cloth bag (5) is arranged at the air inlet of the dust removal fan (1); an air bag (6) is arranged on the outer side wall of the feeding box body (2), one end of a back blowing pipe (7) is connected to the air bag (6), and the other end extends into the feeding box body (2) near the dust removal cloth bag (5); when the dust removal cloth bag (5) is back blown and cleaned, the solenoid valve (8) on the back blowing pipe (7) is opened, and the air flow in the air bag (6) blows the dust on the outer surface of the dust removal cloth bag (5) through the back blowing pipe (7).

3. The inhibitor batching and conveying system for silicon steel production spraying according to claim 1, characterized in that: Three weighing brackets (17) are evenly installed on the tank body of the storage tank (19), and are pressed above three weighing sensors (18) through the weighing brackets (17) for weighing and metering the inhibitor powder in the storage tank (19).

4. The inhibitor ingredient conveying system for silicon steel production spraying according to claim 1, characterized in that: A spiral air pipe (35) is installed on the inner wall of the storage tank (19). A number of small holes are opened at different positions of the spiral air pipe (35) in the storage tank (19). The spiral air pipe (35) is connected to an air inlet pipe (21), and a gas cut-off valve (20) is arranged on the air inlet pipe (21); a gas safety valve (16) is also installed on the storage sealing cover plate (14).

5. The inhibitor batching and conveying system for silicon steel production spraying according to claim 1, characterized in that: The connecting pipe (24) passes through the mixing barrel cover (28) and the anti-spray plate (37) of the mixing barrel (30) to connect the screw conveyor (23) with the mixing barrel (30). The inhibitor powder is fed into the mixing barrel (30) through the connecting pipe (24); the batching water pipe (27) passes through the mixing barrel cover (28) and the anti-spray plate (37) to inject water into the mixing barrel (30) to be mixed with the inhibitor powder. A water distribution flowmeter (26) for controlling the water injection amount is arranged on the batching water pipe (27).

6. The inhibitor batching and conveying system for silicon steel production spraying according to claim 5, characterized in that: A mixing barrel seal (29) for sealing is installed between the mixing barrel cover (28) and the mixing barrel (30), and the anti-spray plate (37) is located between the mixing barrel cover (28) and the mixing barrel (30).

7. The inhibitor batching and conveying system for silicon steel production spraying according to claim 5, wherein: The batching and mixing motor (25) is fixed on the support platform (33), and the mixing barrel (30) is fixed on the lifting connection block (32) and can move up and down under the drive of the lifting device (34); the batching water pipe (27) is fixed on the support platform (33).

8. A batching method for the inhibitor batching and conveying system for silicon steel production spraying according to any one of claims 1 to 7, characterized in that: The specific batching method is as follows: 1) Before operation, preliminarily calculate the inhibitor loading amount according to the coil diameter of the silicon steel coil on the production line and the production efficiency of the current shift, and load the inhibitor into the feeding box body (2); total inhibitor loading amount = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor * number of coils produced in the current shift, the empirical coefficient is 1.3 - 1.5 m, and the reference amount of inhibitor is 5 - 7 kg; 2) After the coil on the production line is planned to be taken off the line, calculate the batching weight of the inhibitor, batching weight of inhibitor = (coil radius * coil radius - coil core radius * coil core radius) / (empirical coefficient * empirical coefficient - coil core radius * coil core radius) * reference amount of inhibitor; 3) The mixing process of the inhibitor batching in the mixing barrel (30) is carried out in three steps: pre-dissolution mixing, full mixing, and mixing barrel flushing.

9. The batching method according to claim 8, characterized in that: The specific process of step 3) is as follows: During pre-dissolution mixing, according to the weight ratio of inhibitor to water of 3:1 - 3:3, under the control of the water distribution flowmeter (26), inject an appropriate amount of water with a temperature below 5°C into the mixing barrel (30), start the batching and mixing motor (25) to drive the curved vane disc turbine (38) to rotate, the circumferential speed of the vane disc turbine (38) is 0.5 - 1.0 m / s, and start the screw conveyor (23) connected to the bottom of the storage tank (19). Under the drive of the batching conveyor motor group (22), quantitatively send the inhibitor powder into the mixing barrel (30) through the feeding guide connecting pipe (24), and use the metering sensor (18) to dynamically monitor the weight of the storage tank (19); when the weight of the inhibitor batching sent into the mixing barrel (30) reaches the target requirement, stop the feeding of the screw conveyor (23), and the pre-dissolution mixing time is 5 - 10 minutes; During the full mixing stage, under the control of the water distribution flowmeter (26), supplement water with a temperature below 5°C into the mixing barrel (30) until the total weight ratio of the inhibitor batching to water reaches 3:4 - 3:5, start the batching and mixing motor (25) to drive the curved vane disc turbine (38) to rotate, the circumferential speed of the vane disc turbine (38) is 1.0 - 2.0 m / s, and the full mixing time is 8 - 12 minutes; after mixing is completed, send the inhibitor batching and mixing solution into the spraying system through the three-way discharge valve (31); After the spraying of the inhibitor mixed solution in the stirring tank (30) is completed, the stirring tank flushing stage is entered. Under the control of the water distribution flowmeter (26), water with a temperature lower than 5°C is injected into the stirring tank (30) with an injection volume of 8 - 10 L, and the batching and stirring motor (25) is started to drive the curved vane disk turbine (38) to rotate. The circumferential speed of the vane disk turbine (38) is 2.0 - 3.0 m / s. After stirring for 3 - 5 minutes, the water is discharged into the sewage system through the three-way discharge valve (31).

10. The batching method according to claim 9, characterized in that: During the pre-dissolution stirring in step 3), the intake pipe (21) is connected to industrial nitrogen. During the operation process, every 1 - 2 hours, the gas shut-off valve (20) is opened so that a number of small holes in the spiral gas pipe (35) inject industrial nitrogen into the storage tank (19). At the same time, the storage stirring motor (15) is started, and the anchor frame stirrer (36) rotates in the storage tank (19) driven by the storage stirring motor (15) to stir the inhibitor powder. The circumferential speed of the outer edge of the anchor frame stirrer (36) is 0.2 - 0.5 m / s. After the gas shut-off valve (20) and the anchor frame stirrer (36) are opened for 8 - 12 minutes, they are stopped.

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