Sodium sarcosinate hydrolysis reaction chlorine-containing tail gas treatment device
By combining a jet absorber and a plate heat exchanger, the problems of poor treatment effect and large temperature fluctuation in chlorine-containing tail gas in traditional devices are solved, achieving efficient tail gas treatment and temperature control, and improving reaction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YINGKOU YINGXIN CHEM TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional chlorine-containing tail gas treatment devices generally have limited effectiveness in mixing chlorine-containing tail gas with alkaline absorption liquid through liquid distributors, and the internal temperature of the reactor fluctuates significantly, making it impossible to guarantee a suitable reaction temperature.
A jet absorber is used to absorb the chlorine-containing tail gas inside the reactor, and the gas is mixed with the alkali absorption liquid through a liquid distributor. The temperature is controlled by a plate heat exchanger, and packing is used to extend the treatment time. Insulation layers are installed on the outer surfaces of the reactor and hydrolysis vessel to maintain a suitable reaction temperature.
This improved the absorption and treatment effect of alkali solution on chlorine-containing tail gas, ensured a suitable reaction temperature, and increased reaction efficiency.
Smart Images
Figure CN224100381U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tail gas treatment technical field, concretely relates to a kind of sarcosine sodium hydrolysis reaction chlorine-containing tail gas treatment device. BACKGROUND
[0002] Sarcosine sodium is a kind of sodium salt of amino acid derivative, its hydrolysis reaction refers to the process of being decomposed into sarcosine and sodium hydroxide in aqueous solution, and the reaction belongs to the basic hydrolysis of salt, since sarcosine sodium is the salt formed by weak acid and strong base, its aqueous solution is weakly alkaline, reaction is influenced by pH, temperature and concentration, and it can be carried out at normal temperature generally, but high temperature or acidic environment can accelerate hydrolysis, and reaction process can produce chlorine-containing tail gas.The effect of the conventional chlorine-containing tail gas treatment device is general by liquid distributor to mix chlorine-containing tail gas with alkali absorption liquid, and the temperature fluctuation in the reaction kettle is large, and the appropriate reaction temperature cannot be guaranteed. UTILITY MODEL CONTENT
[0003] The utility model aims at providing a kind of sarcosine sodium hydrolysis reaction chlorine-containing tail gas treatment device to solve the problems of the conventional chlorine-containing tail gas treatment device in the above background art, the effect of the conventional chlorine-containing tail gas treatment device is general by liquid distributor to mix chlorine-containing tail gas with alkali absorption liquid, and the temperature fluctuation in the reaction kettle is large, and the appropriate reaction temperature cannot be guaranteed.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of sarcosine sodium hydrolysis reaction chlorine-containing tail gas treatment device, including reaction kettle and hydrolysis kettle, the upper portion of the hydrolysis kettle is equipped with jet absorber, the inside upper end intermediate position of the hydrolysis kettle is equipped with liquid distributor, the output of the jet absorber is connected with the liquid distributor by pipeline, the input of the jet absorber is equipped with pressurizing pipe, the lower portion of the hydrolysis kettle is connected with circulation pipe, plate heat exchanger is equipped between the pressurizing pipe and the circulation pipe, pressurized circulating pump is equipped on the pressurizing pipe, shunt tee valve is equipped on the circulation pipe, and the absorption end of the jet absorber is connected with the reaction kettle by absorption pipe.
[0005] Preferably, the inside of the hydrolysis kettle and below the liquid distributor are equipped with packing, the outer surfaces of the reaction kettle and the hydrolysis kettle are covered with heat insulation layer, and the circulation pipe is connected with the hydrolysis kettle through the heat insulation layer.
[0006] Preferably, the pressurizing pipe is connected with the output and input of the pressurized circulating pump by flange respectively, and alkali liquid charging pipe is arranged on the pressurizing pipe between the plate heat exchanger and the pressurized circulating pump.
[0007] Preferably, the circulation pipe is connected with the input end and one of the output ends of the split three-way valve through flanges respectively, and the other output end of the split three-way valve is provided with a discharge pipe.
[0008] Preferably, the absorption pipe penetrates the upper wall of the reaction kettle and extends to the upper end inside the reaction kettle.
[0009] Compared with the prior art, the beneficial effects of the present application are: replacing the traditional chlorine-containing tail gas treatment device, absorbing the chlorine-containing tail gas inside the reaction kettle through the jet absorber, then mixing the chlorine-containing tail gas with the alkali absorption liquid through the liquid distributor, and spraying it onto the packing, improving the absorption and treatment effect of the alkali liquid on the chlorine-containing tail gas, and controlling the temperature of the chlorine-containing tail gas treatment liquid through the plate heat exchanger, ensuring the appropriate reaction temperature and improving the reaction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is a main view of the main structure of the present application.
[0011] Fig. 2 It is a main view of the main structure of the present application.
[0012] In the figure: 1-reaction kettle, 2-hydrolysis kettle, 3-jet absorber, 4-liquid distributor, 5-pressurizing pipe, 6-circulation pipe, 7-plate heat exchanger, 8-pressurizing circulation pump, 9-split three-way valve, 10-absorption pipe, 11-thermal insulation layer, 12-alkali liquid feeding pipe, 13-discharge pipe, 14-packing. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0014] Please refer to Figs. 1-2The utility model provides a kind of sarcosinate hydrolysis reaction chlorine-containing tail gas processing device, including reaction kettle 1 and hydrolysis kettle 2, the upper portion of hydrolysis kettle 2 is equipped with injection absorber 3, the inside upper end intermediate position of hydrolysis kettle 2 is equipped with liquid distributor 4, the output of injection absorber 3 is connected with the liquid distributor 4 by pipeline and communicates, the input of injection absorber 3 is equipped with pressurizing pipe 5, the lower portion of hydrolysis kettle 2 is connected with circulation pipe 6 and is communicated, plate heat exchanger 7 is equipped between pressurizing pipe 5 and circulation pipe 6, pressurizing pipe 5 is equipped with pressurized circulating pump 8, circulation pipe 6 is equipped with shunt tee valve 9, the absorption end of injection absorber 3 and reaction kettle 1 are connected with absorption pipe 10 and communicate.
[0015] When using, pressurized circulating pump 8 is opened, the solution inside hydrolysis kettle 2 is attracted by circulation pipe 6, the solution is attracted to the inside of plate heat exchanger 7 by circulation pipe 6, the solution is heat exchanged by plate heat exchanger 7, so that the solution is kept at suitable temperature, then is delivered to pressurized circulating pump 8 by pressurizing pipe 5, the solution is pressurized by pressurized circulating pump 8 and is delivered to the input of injection absorber 3 by pressurizing pipe 5, the absorption end of injection absorber 3 absorbs chlorine-containing tail gas inside reaction kettle 1 by absorption pipe 10 and is mixed with the solution, then is delivered to the inside of liquid distributor 4 by the output of injection absorber 3, the solution fused with chlorine-containing tail gas is separated by liquid distributor 4 and is sprayed to the inside of hydrolysis kettle 2, chlorine-containing tail gas is neutralized by lye, the solution after neutralization is delivered to shunt tee valve 9 by circulation pipe 6, the solution that meets the standard is output, the solution that does not meet the standard is delivered to the inside of plate heat exchanger 7 again to repeat the above process.
[0016] The inside of hydrolysis kettle 2 and below liquid distributor 4 are equipped with filler 14, the outer surfaces of reaction kettle 1 and hydrolysis kettle 2 are covered with heat insulation layer 11, circulation pipe 6 is communicated and connected with hydrolysis kettle 2 by penetrating heat insulation layer 11, the solution after distribution by liquid distributor 4 is sprayed on filler 14, the neutralization time of lye is prolonged by filler 14 to improve processing efficiency, and heat insulation layer 11 is arranged on the outer surfaces of reaction kettle 1 and hydrolysis kettle 2 to ensure suitable reaction temperature inside reaction kettle 1 and hydrolysis kettle 2.
[0017] Pressurizing pipe 5 is communicated and connected with the output and input of pressurized circulating pump 8 by flange respectively, lye feeding pipe 12 is equipped on pressurizing pipe 5 and between plate heat exchanger 7 and pressurized circulating pump 8, lye is added to the inside of pressurizing pipe 5 by lye feeding pipe 12, chlorine-containing tail gas is neutralized by lye.
[0018] The circulation pipe 6 is connected with the input end and one of the output ends of the split three-way valve 9 through flanges, and the other output end of the split three-way valve 9 is provided with a discharge pipe 13 for outputting the treated solution meeting the standard.
[0019] The absorption pipe 10 penetrates the upper wall of the reaction kettle 1 and extends to the inner upper end of the reaction kettle 1, and the chlorine-containing tail gas in the reaction kettle 1 is sucked through the absorption pipe 10.
[0020] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A device for treating a chlorine-containing tail gas from a sarcosine sodium hydrolysis reaction, characterized by: It includes a reaction kettle (1) and a hydrolysis kettle (2), the upper part of the hydrolysis kettle (2) is provided with a spray absorber (3), the middle position of the inner upper end of the hydrolysis kettle (2) is provided with a liquid distributor (4), the output end of the spray absorber (3) is connected with the liquid distributor (4) through a pipeline, the input end of the spray absorber (3) is provided with a pressurizing pipe (5), the lower part of the hydrolysis kettle (2) is connected with a circulating pipe (6) through a pipeline, a plate heat exchanger (7) is arranged between the pressurizing pipe (5) and the circulating pipe (6), a pressurizing circulating pump (8) is arranged on the pressurizing pipe (5), a shunt tee valve (9) is arranged on the circulating pipe (6), and an absorption pipe (10) is arranged between the absorption end of the spray absorber (3) and the reaction kettle (1).
2. The device for treating the chlorine-containing tail gas of sarcosine sodium hydrolysis reaction according to claim 1, characterized in that: The inside of the hydrolysis kettle (2) and below the liquid distributor (4) are provided with a filler (14), the outer surfaces of the reaction kettle (1) and the hydrolysis kettle (2) are covered with a heat preservation layer (11), and the circulating pipe (6) penetrates through the heat preservation layer (11) and is connected with the hydrolysis kettle (2).
3. The device for treating the chlorine-containing tail gas of sarcosine sodium hydrolysis reaction according to claim 1, characterized in that: The pressurizing pipe (5) is connected with the output end and the input end of the pressurizing circulating pump (8) through flanges, respectively, and a lye feeding pipe (12) is arranged on the pressurizing pipe (5) between the plate heat exchanger (7) and the pressurizing circulating pump (8).
4. The device for treating the chlorine-containing tail gas of sarcosine sodium hydrolysis reaction according to claim 1, characterized in that: The circulating pipe (6) is connected with the input end and one of the output ends of the shunt tee valve (9) through flanges, respectively, and the other output end of the shunt tee valve (9) is provided with a discharge pipe (13).
5. The device for treating the chlorine-containing tail gas of sarcosine sodium hydrolysis reaction according to claim 1, characterized in that: The absorption pipe (10) penetrates through the upper wall of the reaction kettle (1) and extends into the inner upper end of the reaction kettle (1).