CN111871348A - Sulfamic acid apparatus for producing - Google Patents
Sulfamic acid apparatus for producing Download PDFInfo
- Publication number
- CN111871348A CN111871348A CN202010804826.9A CN202010804826A CN111871348A CN 111871348 A CN111871348 A CN 111871348A CN 202010804826 A CN202010804826 A CN 202010804826A CN 111871348 A CN111871348 A CN 111871348A
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- urea
- rotating
- feeding device
- acid storage
- servo motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/087—Compounds containing nitrogen and non-metals and optionally metals containing one or more hydrogen atoms
- C01B21/093—Compounds containing nitrogen and non-metals and optionally metals containing one or more hydrogen atoms containing also one or more sulfur atoms
- C01B21/096—Amidosulfonic acid; Salts thereof
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A sulfamic acid production device comprises a sulfuric acid storage tank, wherein a reaction kettle is arranged below the sulfuric acid storage tank, the sulfuric acid storage tank is connected with the reaction kettle through a pipeline, a positive displacement flowmeter and a first electromagnetic valve are arranged on the pipeline between the sulfuric acid storage tank and the reaction kettle, the top of the sulfuric acid storage tank is communicated with a sulfuric acid liquid inlet pipe, the top of the reaction kettle is connected with the bottom of a urea feeding device through a pipeline, the urea feeding device is provided with an opening at the top, a urea pool is arranged below the urea feeding device, urea in the urea pool is fed into the urea feeding device through a spiral feeder, and a urea quantitative feeding device is arranged in the urea feeding device. Not only ensures the healthy production environment, but also ensures the smooth proceeding of the reaction.
Description
Technical Field
The invention belongs to the field of sulfamic acid production, and particularly relates to a sulfamic acid production device.
Background
Sulfamic acid, also known as solid sulfuric acid, has strong acidity equal to that of hydrochloric acid and sulfuric acid in aqueous solution, is an important fine chemical product, and is widely applied to various fields such as efficient bleaching agents, fibers, flame retardants for paper, softeners, sodium cyclamate, detergents, herbicides, anti-withering agents, standard analytical reagents and the like.
At present, the production process of sulfamic acid mainly adopts a fuming sulfuric acid method taking fuming sulfuric acid and urea as raw materials and a sulfuric acid method taking urea, sulfur trioxide and sulfuric acid as raw materials. The urea required by the reaction is conveyed by the motor-driven conveying device, the urea at the feeding hole is added by manpower, the labor intensity of workers is increased, the danger of sulfur trioxide leakage is caused by adding one bag of urea, the environment is polluted, and the health of the workers is threatened. Fuming sulfuric acid and sulfuric acid are added into the reaction kettle once before urea is added, side reaction is easy to be aggravated, and the yield is reduced.
Disclosure of Invention
The invention provides a sulfamic acid production device, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a sulfamic acid production device comprises a sulfuric acid storage tank, wherein a reaction kettle is arranged below the sulfuric acid storage tank, the sulfuric acid storage tank is connected with the reaction kettle through a pipeline, a positive displacement flowmeter and a first electromagnetic valve are arranged on the pipeline between the sulfuric acid storage tank and the reaction kettle, the top of the sulfuric acid storage tank is communicated with a sulfuric acid liquid inlet pipe, the top of the reaction kettle is connected with the bottom of a urea feeding device through a pipeline, the urea feeding device is provided with an opening at the top, a urea pool is arranged below the urea feeding device, urea in the urea pool is fed into the urea feeding device through a spiral feeder, a urea quantitative feeding device is arranged in the urea feeding device, the urea quantitative feeding device comprises a funnel-shaped collecting barrel, the bottom of the collecting barrel is communicated with the top of a cylinder, the cylinder top set up fixed stop, fixed stop below set up rotating baffle, fixed stop and rotating baffle's corresponding position on set up sectorial through-groove, through-groove in set up the filter screen, rotating baffle's upper portion be connected with the inner circle of bearing, the outer lane of bearing and the inner wall fixed connection of cylinder, rotating baffle's lower part periphery set up the annular rack, the inner wall of cylinder on set up horizontal rotating motor chamber, horizontal rotating motor chamber set up first servo motor, the output shaft of first servo motor and the bottom central point fixed connection of the gear that the level set up, horizontal rotating motor chamber and the corresponding position of gear set up rectangular groove, the gear can pass rectangular groove and rotating baffle lower part rack toothing, rotating baffle's below set up can vertical pivoted commentaries on classics board, one end of the rotating plate is connected with an output shaft of a second servo motor, the second servo motor is arranged in a vertical rotating motor cavity formed in the inner wall of the cylinder, a through hole is formed in the vertical rotating motor cavity, the output shaft of the second servo motor penetrates through the through hole to be fixedly connected with one end of the rotating plate, the other end of the rotating plate is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the end part of a rotating shaft groove formed in the inner wall of the cylinder, a weighing device is arranged below the cylinder, the upper surface of the weighing device is obliquely arranged, the lowest end of the weighing device is arranged on the same side with the top end of a pipeline between the reaction kettle and the urea feeding device, a second electromagnetic valve is arranged on the pipeline between the reaction kettle and the urea feeding device, and the volumetric flowmeter, the first electromagnetic valve, the spiral feeder and the urea feeding device are arranged on the same side of the pipeline between the reaction, The first servo motor, the second servo motor, the weighing device and the second electromagnetic valve are electrically connected with the processor.
According to the sulfamic acid production device, the sulfuric acid storage tank is internally provided with the buoy type liquid level meter, the top of the sulfuric acid storage tank is provided with the liquid level alarm, and the buoy type liquid level meter and the liquid level alarm are electrically connected with the processor.
According to the device for producing sulfamic acid, the urea feeding check valve is arranged on the pipeline between the urea feeding device and the reaction kettle.
The invention has the advantages that: the invention can realize the continuous and automatic addition of urea, ensure the normal reaction, and simultaneously avoid sulfur trioxide from leaking into the air to pollute the environment, thereby not only ensuring the healthy production environment, but also ensuring the smooth reaction. The accuracy of the added sulfuric acid amount is ensured through the positive displacement flow meter and the first electromagnetic valve, the positive displacement flow meter transmits signals to the processor in real time when the sulfuric acid is added, when the sulfuric acid addition amount approaches to a preset addition amount, the opening degree of the first electromagnetic valve is adjusted to be small, when the preset addition amount is reached, the processor controls the first electromagnetic valve to be closed, so that the accuracy of the added sulfuric acid amount is ensured, urea is fed into the urea feeding device from a urea pool through the spiral feeder, the processor controls the first servo motor to rotate to drive the rotary baffle to rotate to enable the fan-shaped opening of the rotary baffle to correspond to the fan-shaped opening of the fixed baffle when the urea is fed, the processor controls the second servo motor to drive the rotary plate to rotate to the horizontal position, the processor controls the spiral feeder to be opened to feed the urea into the urea feeding device, after a certain amount of the urea is fed, the processor controls the spiral feeder to be closed, and simultaneously controls the first servo motor to rotate The mouth sets up that staggers mutually, treater control second servo motor drives and changes the board and rotate to vertical position, urea material feeding unit bottom is sent into to urea, after weighing through weighing device and give the treater with data transfer, then open treater control second solenoid valve and open and send into urea in reation kettle, set up in the urea material feeding unit and assist material feeding unit and be convenient for send into reation kettle with the urea on the weighing device is whole in, the treater control second solenoid valve is closed after the pay-off is accomplished, wait for the pay-off of second time and repeat above-mentioned operation can.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the architecture of the present invention;
FIG. 3 is a schematic structural view of a retainer plate of the present invention;
FIG. 4 is a partial enlarged view of section I of FIG. 1;
FIG. 5 is a partial enlarged view of section II of FIG. 1;
fig. 6 is a partially enlarged view of the section III in fig. 1.
Reference numerals: 1. a sulfuric acid storage tank; 2. a reaction kettle; 3. a positive displacement flow meter; 4. a first solenoid valve; 5. a sulfuric acid inlet pipe; 6. a urea feeding device; 7. a urea tank; 8. a screw feeder; 9. a collection canister; 10. a cylinder; 11. fixing a baffle plate; 12. rotating the baffle; 13. a filter screen; 14. a bearing; 15. a rack; 16. horizontally rotating the motor cavity; 17. a first servo motor; 18. a gear; 19. rotating the plate; 20. a second servo motor; 21. a motor cavity is vertically rotated; 22. a rotating shaft; 23. a rotating shaft groove; 24. a weighing device; 25. a second solenoid valve; 26. a processor; 27. a float level gauge; 28. a liquid level alarm; 29. the urea is fed into the one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A sulfamic acid production device comprises a sulfuric acid storage tank 1, wherein a reaction kettle 2 is arranged below the sulfuric acid storage tank 1, the sulfuric acid storage tank 1 is connected with the reaction kettle 2 through a pipeline, a positive displacement flowmeter 3 and a first electromagnetic valve 4 are arranged on the pipeline between the sulfuric acid storage tank 1 and the reaction kettle 2, the top of the sulfuric acid storage tank 1 is communicated with a sulfuric acid liquid inlet pipe 5, the top of the reaction kettle 2 is connected with the bottom of a urea feeding device 6 through a pipeline, the urea feeding device 6 is arranged, the top opening of the urea feeding device 6 is arranged, a urea pool 7 is arranged below the urea feeding device 6, urea in the urea pool 7 is fed into the urea feeding device 6 through a spiral feeder 8, a urea quantitative feeding device is arranged in the urea feeding device 6 and comprises a funnel-shaped collecting barrel 9, the bottom of the collecting cylinder 9 is communicated with the top of the cylinder 10, the top of the cylinder 10 is provided with a fixed baffle 11, a rotary baffle 12 is arranged below the fixed baffle 11, a fan-shaped through groove is arranged at the corresponding position of the fixed baffle 11 and the rotary baffle 12, a filter screen 13 is arranged in the through groove, the upper part of the rotary baffle 12 is connected with the inner ring of a bearing 14, the outer ring of the bearing 14 is fixedly connected with the inner wall of the cylinder 10, the periphery of the lower part of the rotary baffle 12 is provided with a circular rack 15, the inner wall of the cylinder 10 is provided with a horizontal rotary motor cavity 16, the horizontal rotary motor cavity 16 is provided with a first servo motor 17, the output shaft of the first servo motor 17 is fixedly connected with the bottom central position of the horizontally arranged gear 18, the horizontal rotary motor cavity 16 is provided with a long groove at the corresponding position of the gear 18, the gear 18 can penetrate through the long groove to be meshed with the rack 15 at the lower part of the rotary baffle 12, a rotary plate 19 capable of vertically rotating is arranged below the rotary baffle 12, one end of the rotary plate 19 is connected with an output shaft of a second servo motor 20, the second servo motor 20 is arranged in a vertical rotary motor cavity 21 formed in the inner wall of the cylinder 10, a through hole is formed in the vertical rotary motor cavity 21, an output shaft of the second servo motor 20 penetrates through the through hole to be fixedly connected with one end of the rotary plate 19, the other end of the rotary plate 19 is fixedly connected with a rotary shaft 22, the rotary shaft 22 is rotatably connected with the end part of a rotary shaft groove 23 formed in the inner wall of the cylinder 10, a weighing device 24 is arranged below the cylinder 10, the upper surface of the weighing device 24 is obliquely arranged, the lowest end of the weighing device 24 is arranged on the same side with the top end of a pipeline between the obliquely arranged reaction kettle 2 and the urea feeding device 6, the pipeline between the reaction kettle 2 and the urea feeding device 6 is provided with a second electromagnetic valve 25, and the volumetric flowmeter 3, the first electromagnetic valve 4, the spiral feeder 8, the first servo motor 17, the second servo motor 20, the weighing device 24, the second electromagnetic valve 25 and the processor 26 are electrically connected. In the invention, the accuracy of the added amount of the sulfuric acid is ensured through the volumetric flow meter 3 and the first electromagnetic valve 4, the volumetric flow meter 3 transmits signals to the processor 26 in real time when the sulfuric acid is added, when the added amount of the sulfuric acid approaches to the preset added amount, the opening degree of the first electromagnetic valve 4 is reduced, when the added amount reaches the preset added amount, the processor 26 controls the first electromagnetic valve 4 to be closed, so that the accuracy of the added amount of the sulfuric acid is ensured, meanwhile, the urea is fed into the urea feeding device 6 from the urea pool 7 through the spiral feeder 8, when in blanking, the processor 26 controls the first servo motor 17 to rotate to drive the rotary baffle 12 to rotate so that the fan-shaped opening of the rotary baffle 12 corresponds to the fan-shaped opening of the fixed baffle 11, the processor 26 controls the second servo motor 20 to drive the rotary plate 19 to rotate to the horizontal position, the processor 26 controls the spiral feeder 8 to be opened, the spiral feeder 8 is controlled to close by the processor 26, meanwhile, the processor 26 controls the first servo motor 17 to rotate to drive the rotary baffle 12 to rotate to enable the fan-shaped opening of the rotary baffle 12 to be staggered with the fan-shaped opening of the fixed baffle 11, the processor 26 controls the second servo motor 20 to drive the rotary baffle 19 to rotate to a vertical position, urea is fed into the bottom of the urea feeding device 6, after being weighed by the weighing device 24, data is transmitted to the processor 26, then the processor 26 is opened to control the second electromagnetic valve 25 to be opened to feed the urea into the reaction kettle 2, the auxiliary feeding device is arranged in the urea feeding device 6, so that the urea on the weighing device 24 is completely fed into the reaction kettle 2, the processor 26 controls the second electromagnetic valve 25 to be closed after feeding is completed, and the operation is repeated after feeding is completed.
Specifically, this embodiment set up buoy type level gauge 27 in sulphuric acid storage jar 1, sulphuric acid storage jar 1 top set up liquid level alarm 28, buoy type level gauge 27 and liquid level alarm 28 and treater 26 electric connection. The processor 26 can accurately know the liquid level in the sulfuric acid storage tank 1 through the float type liquid level meter 27, and when the liquid level is too low, the processor 26 controls the alarm 28 to give an alarm to prompt relevant personnel to replenish sulfuric acid in the sulfuric acid storage tank 1.
Specifically, a urea feeding check valve 29 is disposed on a pipeline between the urea feeding device 6 and the reaction kettle 2. Check valve 29 can effectually avoid having sulfur trioxide to get into the external world along the pipeline between reation kettle 2 and the urea material feeding unit 6 at the reinforced in-process of urea, ensures production environment's environmental protection.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. A sulfamic acid apparatus for producing, its characterized in that: including sulphuric acid storage jar (1), the below of sulphuric acid storage jar (1) set up reation kettle (2), sulphuric acid storage jar (1) pass through the tube coupling with reation kettle (2), sulphuric acid storage jar (1) and reation kettle (2) between the pipeline on set up positive displacement flowmeter (3) and first solenoid valve (4), the top and sulphuric acid feed liquor pipe (5) intercommunication of sulphuric acid storage jar (1), the top of reation kettle (2) and the bottom of urea material feeding unit (6) pass through the tube coupling, urea material feeding unit (6) open-top set up, urea material feeding unit (6) below set up urea pond (7), urea pond (7) in urea send into urea material feeding unit (6) through spiral feeder (8), urea material feeding unit (6) in set up urea and throw quantitative material device, the urea quantitative feeding device comprises a funnel-shaped collecting barrel (9), the bottom of the collecting barrel (9) is communicated with the top of a cylinder (10), the top of the cylinder (10) is provided with a fixed baffle (11), a rotary baffle (12) is arranged below the fixed baffle (11), a fan-shaped through groove is formed in the corresponding position of the fixed baffle (11) and the rotary baffle (12), a filter screen (13) is arranged in the through groove, the upper part of the rotary baffle (12) is connected with the inner ring of a bearing (14), the outer ring of the bearing (14) is fixedly connected with the inner wall of the cylinder (10), the periphery of the lower part of the rotary baffle (12) is provided with a circular rack (15), the inner wall of the cylinder (10) is provided with a horizontal rotary motor cavity (16), the horizontal rotary motor cavity (16) is provided with a first servo motor (17), an output shaft of the first servo motor (17) is fixedly connected with the central position of the bottom of a horizontally arranged gear (18), a long groove is formed in the corresponding position of a horizontal rotating motor cavity (16) and the gear (18), the gear (18) can penetrate through the long groove to be meshed with a rack (15) at the lower part of a rotating baffle plate (12), a rotating plate (19) capable of vertically rotating is arranged below the rotating baffle plate (12), one end of the rotating plate (19) is connected with an output shaft of a second servo motor (20), the second servo motor (20) is arranged in a vertical rotating motor cavity (21) formed in the inner wall of a cylinder (10), a through hole is formed in the vertical rotating motor cavity (21), the output shaft of the second servo motor (20) penetrates through the through hole to be fixedly connected with one end of the rotating plate (19), and the other end of the rotating plate (19) is fixedly connected with a rotating shaft (22), the improved urea feeding device is characterized in that the rotating shaft (22) is rotatably connected with the end part of a rotating shaft groove (23) formed in the inner wall of the cylinder (10), the weighing device (24) is arranged below the cylinder (10), the upper surface of the weighing device (24) is obliquely arranged, the lowest end of the weighing device (24) and the top end of a pipeline between the reaction kettle (2) and the urea feeding device (6) which are obliquely arranged are arranged on the same side, the second electromagnetic valve (25) is arranged on the pipeline between the reaction kettle (2) and the urea feeding device (6), and the positive displacement flow meter (3), the first electromagnetic valve (4), the spiral feeding machine (8), the first servo motor (17), the second servo motor (20), the weighing device (24) and the second electromagnetic valve (25) are electrically connected with the processor (26).
2. The sulfamic acid production plant according to claim 1, characterized in that: sulphuric acid storage jar (1) in set up buoy type level gauge (27), sulphuric acid storage jar (1) top set up liquid level alarm (28), buoy type level gauge (27) and liquid level alarm (28) and treater (26) electric connection.
3. The sulfamic acid production plant according to claim 1, characterized in that: and a urea feeding one-way valve (29) is arranged on a pipeline between the urea feeding device (6) and the reaction kettle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804826.9A CN111871348A (en) | 2020-08-12 | 2020-08-12 | Sulfamic acid apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804826.9A CN111871348A (en) | 2020-08-12 | 2020-08-12 | Sulfamic acid apparatus for producing |
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| Publication Number | Publication Date |
|---|---|
| CN111871348A true CN111871348A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010804826.9A Pending CN111871348A (en) | 2020-08-12 | 2020-08-12 | Sulfamic acid apparatus for producing |
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| CN (1) | CN111871348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808171A (en) * | 2020-12-30 | 2021-05-18 | 邓会秋 | Pump valve-free corrosive liquid feeding system and process |
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| CN206810232U (en) * | 2017-04-10 | 2017-12-29 | 山东远联化工有限公司 | A kind of automation charging control system for preparing iminodisuccinic acid |
| CN208098045U (en) * | 2018-02-06 | 2018-11-16 | 开平市富丽雅实业有限公司 | A kind of automatic control reaction kettle for pigment production |
| CN108607388A (en) * | 2018-05-18 | 2018-10-02 | 安徽工程大学 | A kind of isolated material agitator |
| CN208427011U (en) * | 2018-06-26 | 2019-01-25 | 潍坊强奥化工有限公司 | A kind of calcium chloride solution production equipment |
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| CN211098368U (en) * | 2019-06-14 | 2020-07-28 | 湖南浩润科技有限公司 | Desulfurizer adding device with volume-controlled multidirectional adding function |
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| CN112808171A (en) * | 2020-12-30 | 2021-05-18 | 邓会秋 | Pump valve-free corrosive liquid feeding system and process |
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Application publication date: 20201103 |