CN108543502B - Control method of modified alkali-making reaction kettle - Google Patents
Control method of modified alkali-making reaction kettle Download PDFInfo
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- CN108543502B CN108543502B CN201810452618.XA CN201810452618A CN108543502B CN 108543502 B CN108543502 B CN 108543502B CN 201810452618 A CN201810452618 A CN 201810452618A CN 108543502 B CN108543502 B CN 108543502B
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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
- B01J19/0006—Controlling or regulating processes
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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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
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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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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/16—Halides of ammonium
- C01C1/164—Ammonium chloride
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/18—Preparation by the ammonia-soda process
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of reaction kettles, in particular to a control method of a modified alkali-making reaction kettle, which comprises the step of adding CO2Introducing CO into the flexible cavity of the telescopic rod through a carbon dioxide inlet channel2The carbon dioxide inlet channel is communicated with the telescopic rod movable cavity and the right side channel is communicated with the reaction cavity, and CO is2Reacting with the aqueous solution of ammonia gas to generate NH4HCO3And (6) finally. The telescopic rod drives the conical plug to continuously descend until the conical plug presses the bottom of the cylindrical baffle support, NaCl solution flows into the reaction cavity from the NaCl cavity, and the filtering device filters out NH4Cl flows into the telescopic rod movable cavity through the right channel and then flows into the telescopic rod movable cavity through NH4Cl outlet pipe flowing out, NaHCO3The precipitate is left in the reaction chamber and decomposed to produce CO2Entering CO through a carbon dioxide outlet channel2And (5) storing the reaction tank for the next reaction. The present invention can realize the self-control propulsion of the reaction process, effectively control the reaction rate, and complete multi-step reaction in one device.
Description
Technical Field
The invention relates to the technical field of reaction kettles, and particularly belongs to a modified alkali-making reaction kettle and a control method thereof.
Background
In the production of soda ash, the ammonia-soda process is gradually replaced by a combined soda production process because of low utilization rate of salt raw materials and difficult production treatment of calcium chloride. The combined soda making method realizes the alternate circulation of producing the main product soda ash and the byproduct ammonium chloride, the existing soda making devices can finish all the reactions in different storage tanks, and the design of a soda making reaction device which can effectively improve the reaction efficiency is very necessary.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a modified alkali-making reaction kettle and a control method thereof, which can realize the self-control propulsion of the reaction process, effectively control the reaction rate and complete multi-step reaction in one device.
In order to achieve the effect, the technical scheme provided by the invention is that the reformed alkali-making reaction kettle comprises an actuating mechanism; the actuating mechanism comprises a telescopic rod and a cylinderThe baffle plate bracket, the cylindrical baffle plate and the elastic mechanism are arranged on the baffle plate bracket; an elastic mechanism is installed at the bottom of the kettle body, a cylindrical baffle support is installed at the upper part of the elastic mechanism, a cylindrical baffle is arranged at the upper part of the cylindrical baffle support, the lower end of a telescopic rod is installed at the bottom of the kettle body, a conical plug is arranged at the upper end of the telescopic rod, and the telescopic rod penetrates through the bottom of the cylindrical baffle support and the elastic mechanism; a NaCl inlet pipeline is communicated with a NaCl cavity at the top of the kettle, a heating device is arranged at the bottom of the reaction cavity, a boss is arranged on the inner surface of the top of the kettle, an inverted cylindrical structure is arranged in the middle of the kettle and is fixedly connected with the outer wall of the kettle, a telescopic rod movable cavity is arranged in the structure, the inner diameter of the uppermost end of the cylindrical baffle is tightly contacted with the outer diameter of the boss, the inverted cylindrical structure is arranged at the inner sides of the cylindrical baffle and the cylindrical baffle bracket, and the inner wall of the cylindrical baffle, the upper surface of the inverted cylindrical structure and the lower surface of the boss form; the upper part of the inverted cylindrical structure is provided with a first channel, and the first channel penetrates through the reaction cavity and the telescopic rod movable cavity; the first channel comprises a left channel and a right channel, the left channel is connected with a carbon dioxide inlet pipe, and a filtering device is arranged at the right channel; a carbon dioxide inlet channel is communicated to the telescopic rod movable cavity, the center of the boss penetrates through a second channel, the second channel is connected with the carbon dioxide inlet channel through a carbon dioxide outlet channel, and the bottom of the telescopic rod movable cavity is connected with NH4A Cl outlet conduit; the right side passageway position sets up first valve, and the second passageway position sets up the second valve, set up the third valve on the carbon dioxide inlet passageway, carbon dioxide outlet passageway sets up the fourth valve, NH4And a fifth valve is arranged on the Cl outlet pipeline, and a sixth valve is arranged on the NaCl inlet pipeline.
The inverted cylindrical structure is fixed on the kettle body through a plurality of fixed connecting rods vertical to the inner wall of the kettle body.
The elastic mechanism is a spring group.
The diameter of the bottom circle of the conical plug is larger than the diameter of the cross section of the telescopic rod.
The heating device is an inductive heater.
The reaction equation is:
NH3+H2O+CO2=NH4HCO3
NH4HCO3+NaCl=NH4Cl+NaHCO3
2NaHCO3=Na2 CO3+H2O+CO2
one reaction cycle of the present invention is divided into three phases:
and (3) putting the aqueous solution of ammonia gas into the reaction cavity, and injecting the NaCl solution into the NaCl cavity at the top of the kettle through a NaCl inlet pipeline.
The first stage is as follows: opening the third valve; closing the first valve, the second valve, the fifth valve and the sixth valve to remove CO2Slowly introducing into the telescopic rod movable cavity through a carbon dioxide inlet channel, slowly descending a conical plug on the telescopic rod from the highest point (a first channel), and introducing CO2The carbon dioxide is introduced into the telescopic rod movable cavity through a carbon dioxide inlet channel and is led into the reaction cavity through a left channel, and CO is2Reacting with the aqueous solution of ammonia gas to generate NH4HCO3Thereafter, the third valve is closed.
And a second stage: the telescopic rod drives the conical plug to continuously descend until the conical plug presses the bottom of the cylindrical baffle support, the elastic mechanism is compressed, the cylindrical baffle support drives the cylindrical baffle to descend, the cylindrical baffle is separated from the boss, NaCl solution flows into the reaction cavity from the NaCl cavity, and NH is added to the NaCl solution4HCO3Reacting with NaCl solution, opening the first valve and the fifth valve, and filtering out NH by the filter4Cl flows into the telescopic rod movable cavity through the right channel and then flows into the telescopic rod movable cavity through NH4Cl outlet pipe flowing out, NaHCO3The precipitate remains in the reaction chamber.
And a third stage: the heating device at the bottom of the reaction chamber starts to work, NaHCO3Decomposition reaction occurs, the second valve and the fourth valve are opened, and CO is added2Entering CO through a carbon dioxide outlet channel2And (5) storing the reaction tank for the next reaction.
The invention has the beneficial effects that: it can realize the self-control propulsion of the reaction process, effectively control the reaction rate, and can complete multi-step reaction in one device.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention when it is not reacted;
FIG. 2 is a schematic structural diagram of a first stage of the present invention;
FIG. 3 is a schematic structural diagram of the second stage of the present invention;
FIG. 4 is an enlarged view of A in FIG. 1;
FIG. 5 is a top view of the position of the fixed link;
in the figure: 1. telescopic rod, 2, cylindrical baffle support, 3, cylindrical baffle, 4, elastic mechanism, 5, conical plug, 6, NaCl inlet pipeline, 7, NaCl chamber, 8, boss, 9, inverted cylindrical structure, 10, telescopic rod movable chamber, 11, reaction chamber, 12, heating device, 13, left side channel, 14, right side channel, 15, carbon dioxide inlet pipe, 16, filtering device, 17, carbon dioxide inlet channel, 18, second channel, 19, carbon dioxide outlet channel, 20, NH4Cl outlet pipeline, 21, second valve, 22, first valve, 23, fourth valve, 24, third valve, 25, fifth valve, 26, sixth valve, 27, fixed connecting rod, 28, CO2And (4) storage tank.
Detailed Description
The reformed alkali-making reaction kettle comprises an actuating mechanism; the actuating mechanism comprises a telescopic rod 1, a cylindrical baffle bracket 2, a cylindrical baffle 3 and an elastic mechanism 4; an elastic mechanism 4 is installed at the bottom of the kettle body, a cylindrical baffle support 2 is installed at the upper part of the elastic mechanism 4, a cylindrical baffle 3 is arranged at the upper part of the cylindrical baffle support 2, the lower end of a telescopic rod 1 is installed at the bottom of the kettle body, a conical plug 5 is arranged at the upper end of the telescopic rod 1, and the telescopic rod 1 penetrates through the bottom of the cylindrical baffle support 2 and the elastic mechanism 4; NaCl inlet pipe 6 communicates to the NaCl chamber 7 at cauldron top, and cauldron top internal surface sets up boss 8, and cauldron body middle part sets up the cylindrical structure 9 of back-off, and this structure and cauldron body outer wall fixed connection, the inside telescopic link activity chamber 10 that is of this structure, the most upper end internal diameter of cylindrical baffle 3 with 8 external diameter in close contact with on the boss, the cylindrical structure 9 of back-off sets up at cylindrical baffle 3 and cylindrical baffle support 2 inboards, the drumThe inner wall of the baffle plate 3, the upper surface of the inverted cylindrical structure 9 and the lower surface of the boss 8 form a reaction cavity 11, and the bottom of the reaction cavity 11 is provided with a heating device 12; the upper part of the inverted cylindrical structure 9 is provided with a first channel which penetrates through the reaction cavity 11 and the telescopic rod movable cavity 10; the first channel comprises a left channel 13 and a right channel 14, the left channel 13 is connected with a carbon dioxide inlet pipe 15, and a filtering device 16 is arranged at the position of the right channel 13; a carbon dioxide inlet channel 17 is communicated with the telescopic rod movable cavity 10, the center of the boss 8 penetrates through a second channel 18, the second channel 18 is connected with the carbon dioxide inlet channel 17 through a carbon dioxide outlet channel 19, and CO is arranged between the carbon dioxide outlet channel 19 and the carbon dioxide inlet channel 172A storage tank 28, the bottom of the telescopic rod movable cavity 10 is connected with NH4A Cl outlet line 20; a first valve 22 is arranged at the position of the right channel 14, a second valve 21 is arranged at the position of the second channel 18, a third valve 24 is arranged on the carbon dioxide inlet channel 17, a fourth valve 23 and NH are arranged on the carbon dioxide outlet channel 194And a fifth valve 25 is arranged on the Cl outlet pipeline 20, and a sixth valve 26 is arranged on the NaCl inlet pipeline 6.
The inverted cylindrical structure 9 is fixed on the kettle body through a plurality of fixed connecting rods 27 vertical to the inner wall of the kettle body.
The elastic mechanism 4 is a spring set.
The diameter of the bottom circle of the conical plug 5 is larger than the diameter of the cross section of the telescopic rod.
The heating device 12 is an induction heater.
The telescopic rod controls the telescopic speed by a computer so as to control the speed of the material entering the reaction kettle, thereby adjusting the reaction speed.
Claims (5)
1. The control method of the reformed alkali-making reaction kettle comprises an actuating mechanism, wherein the actuating mechanism comprises a telescopic rod, a cylindrical baffle bracket, a cylindrical baffle and an elastic mechanism; an elastic mechanism is installed at the bottom of the kettle body, a cylindrical baffle support is installed at the upper part of the elastic mechanism, a cylindrical baffle is arranged at the upper part of the cylindrical baffle support, the lower end of a telescopic rod is installed at the bottom of the kettle body, a conical plug is arranged at the upper end of the telescopic rod, and the telescopic rod penetrates through the bottom of the cylindrical baffle support and the elastic mechanism;
a NaCl inlet pipeline is communicated with a NaCl cavity at the top of the kettle, a boss is arranged on the inner surface of the top of the kettle, an inverted cylindrical structure is arranged at the middle part of the kettle body and is fixedly connected with the outer wall of the kettle body, a telescopic rod movable cavity is arranged inside the structure,
the inner diameter of the uppermost end of the cylindrical baffle is tightly contacted with the outer diameter of the lug boss,
the inverted cylindrical structure is arranged at the inner sides of the cylindrical baffle and the cylindrical baffle bracket,
the inner wall of the cylindrical baffle, the upper surface of the inverted cylindrical structure and the lower surface of the boss form a reaction cavity, and a heating device is arranged at the bottom of the reaction cavity; the upper part of the inverted cylindrical structure is provided with a first channel, and the first channel penetrates through the reaction cavity and the telescopic rod movable cavity; the first channel comprises a left channel and a right channel, the left channel is connected with a carbon dioxide inlet pipe, and a filtering device is arranged at the right channel;
a carbon dioxide inlet channel is communicated to the telescopic rod movable cavity, the center of the boss penetrates through a second channel, the second channel is connected with the carbon dioxide inlet channel through a carbon dioxide outlet channel, and the bottom of the telescopic rod movable cavity is connected with NH4A Cl outlet conduit;
the right side passageway position sets up first valve, and the second passageway position sets up the second valve, set up the third valve on the carbon dioxide inlet passageway, carbon dioxide outlet passageway sets up the fourth valve, NH4A fifth valve is arranged on the Cl outlet pipeline, and a sixth valve is arranged on the NaCl inlet pipeline; the method is characterized in that:
step 1: putting an ammonia water solution into a reaction cavity, and injecting a NaCl solution into a NaCl cavity at the top of the kettle through a NaCl inlet pipeline;
step 2: opening the third valve; closing the first valve, the second valve, the fifth valve and the sixth valve to remove CO2Slowly introducing into the telescopic rod movable cavity through a carbon dioxide inlet channel, slowly descending the conical plug on the telescopic rod from the highest point, and introducing CO2Is led into the expansion pipe through a carbon dioxide inlet channelA rod moving chamber leading to the reaction chamber via a left side passage, CO2Reacting with the aqueous solution of ammonia gas to generate NH4HCO3Then, closing the third valve;
and step 3: the telescopic rod drives the conical plug to continuously descend until the conical plug presses the bottom of the cylindrical baffle support, the elastic mechanism is compressed, the cylindrical baffle support drives the cylindrical baffle to descend, the cylindrical baffle is separated from the boss, NaCl solution flows into the reaction cavity from the NaCl cavity, and NH is added to the NaCl solution4HCO3Reacting with NaCl solution, opening the first valve and the fifth valve, and filtering out NH by the filter4Cl flows into the telescopic rod movable cavity through the right channel and then flows into the telescopic rod movable cavity through NH4Cl outlet pipe flowing out, NaHCO3The precipitate is left in the reaction cavity;
and 4, step 4: the heating device at the bottom of the reaction chamber starts to work, NaHCO3Decomposition reaction occurs, the second valve and the fourth valve are opened, and CO is added2Entering CO through a carbon dioxide outlet channel2And (5) storing the reaction tank for the next reaction.
2. The method for controlling the reformed alkali-making reaction kettle according to claim 1, wherein: the inverted cylindrical structure is fixed on the kettle body through a plurality of fixed connecting rods vertical to the inner wall of the kettle body.
3. The method for controlling the reformed alkali-making reaction kettle according to claim 1, wherein: the elastic mechanism is a spring group.
4. The method for controlling the reformed alkali-making reaction kettle according to claim 1, wherein: the diameter of the bottom circle of the conical plug is larger than the diameter of the cross section of the telescopic rod.
5. The method for controlling the reformed alkali-making reaction kettle according to claim 1, wherein: the heating device is an inductive heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452618.XA CN108543502B (en) | 2016-12-20 | 2016-12-20 | Control method of modified alkali-making reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452618.XA CN108543502B (en) | 2016-12-20 | 2016-12-20 | Control method of modified alkali-making reaction kettle |
| CN201611182680.9A CN106582469B (en) | 2016-12-20 | 2016-12-20 | Improved alkaline reaction kettle |
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| CN201611182680.9A Division CN106582469B (en) | 2016-12-20 | 2016-12-20 | Improved alkaline reaction kettle |
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| CN108543502A CN108543502A (en) | 2018-09-18 |
| CN108543502B true CN108543502B (en) | 2021-02-09 |
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| CN201611182680.9A Active CN106582469B (en) | 2016-12-20 | 2016-12-20 | Improved alkaline reaction kettle |
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| CN112604479A (en) * | 2020-11-25 | 2021-04-06 | 卢振杰 | Chemical processing waste gas purification method |
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| US3974849A (en) * | 1974-09-04 | 1976-08-17 | Dawson Peter L | Diaphragm valves |
| BE875529A (en) * | 1978-05-02 | 1979-07-31 | Tulcea Sa | SAFETY BLOCKING DEVICE FOR PRESSURE CIRCUITS OR PIPING |
| CN201141456Y (en) * | 2007-12-11 | 2008-10-29 | 江苏核电有限公司 | Bypass non-return valve of novel safety casing isolation system |
| CN201236953Y (en) * | 2008-01-25 | 2009-05-13 | 上海富地阀门有限公司 | Quantitative regulation valve |
| CN103062453A (en) * | 2012-12-17 | 2013-04-24 | 浙江盾安阀门有限公司 | Vacuum anti-siphon backflow preventing valve |
| CN103671949A (en) * | 2013-12-31 | 2014-03-26 | 张家港格林沙洲锅炉有限公司 | Flow regulating valve |
| CN205323570U (en) * | 2015-11-20 | 2016-06-22 | 重庆恒宇华顿新能源开发有限公司 | Preparation jar body of mixed petrol adjusting part of coordinated control |
| CN205578760U (en) * | 2016-04-01 | 2016-09-14 | 上海澳升清洁科技有限公司 | Decompression choke valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001159633A (en) * | 1999-12-02 | 2001-06-12 | Sanuki Kogyo Kk | Automatic reaction-treating device |
| CN204611055U (en) * | 2015-03-30 | 2015-09-02 | 天津市易泰柯自动控制设备有限公司 | A kind of altitude valve |
| CN206315772U (en) * | 2016-12-20 | 2017-07-11 | 大连创达技术交易市场有限公司 | A kind of alkaline reactor of transformation |
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2016
- 2016-12-20 CN CN201810452618.XA patent/CN108543502B/en active Active
- 2016-12-20 CN CN201611182680.9A patent/CN106582469B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974849A (en) * | 1974-09-04 | 1976-08-17 | Dawson Peter L | Diaphragm valves |
| BE875529A (en) * | 1978-05-02 | 1979-07-31 | Tulcea Sa | SAFETY BLOCKING DEVICE FOR PRESSURE CIRCUITS OR PIPING |
| CN201141456Y (en) * | 2007-12-11 | 2008-10-29 | 江苏核电有限公司 | Bypass non-return valve of novel safety casing isolation system |
| CN201236953Y (en) * | 2008-01-25 | 2009-05-13 | 上海富地阀门有限公司 | Quantitative regulation valve |
| CN103062453A (en) * | 2012-12-17 | 2013-04-24 | 浙江盾安阀门有限公司 | Vacuum anti-siphon backflow preventing valve |
| CN103671949A (en) * | 2013-12-31 | 2014-03-26 | 张家港格林沙洲锅炉有限公司 | Flow regulating valve |
| CN205323570U (en) * | 2015-11-20 | 2016-06-22 | 重庆恒宇华顿新能源开发有限公司 | Preparation jar body of mixed petrol adjusting part of coordinated control |
| CN205578760U (en) * | 2016-04-01 | 2016-09-14 | 上海澳升清洁科技有限公司 | Decompression choke valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106582469A (en) | 2017-04-26 |
| CN106582469B (en) | 2018-11-23 |
| CN108543502A (en) | 2018-09-18 |
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Effective date of registration: 20210121 Address after: 251909 Chengkou town government station, east of Daji Road, Wudi County, Binzhou City, Shandong Province Applicant after: SHANDONG SANYUE CHEMICAL Co.,Ltd. Address before: 116011 room 2206, 100 Shengli Road, Xigang District, Dalian, Liaoning. Applicant before: DALIAN SHENGDUO EDUCATION CONSULTING Co.,Ltd. |
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