Thionyl chloride waste liquid treatment device and treatment equipment thereof

Abstract

The invention relates to a thionyl chloride waste liquid treatment device and treatment equipment thereof, and the thionyl chloride waste liquid treatment device comprises: a housing provided with an accommodating cavity; the water inlet pipe is provided with a water inlet channel, and the water inlet channel is communicated with the containing cavity; the air inlet pipe is provided with an air inlet channel, and the air inlet channel is communicated with the containing cavity; the air outlet pipe is provided with an air outlet channel, and the air outlet channel is communicated with the containing cavity; the spraying assembly is arranged in the accommodating cavity; wherein the spraying assembly is arranged between the water inlet pipe and the air inlet pipe; the shell is further provided with a hydrochloric acid collecting tank, and the hydrochloric acid collecting tank is arranged on the side, away from the water inlet pipe, of the air inlet pipe. According to the technical scheme, thionyl chloride reacts with water to generate hydrogen chloride gas, sulfur dioxide and other sulfurized gases, in the actual generation process, industrial hydrochloric acid with lower cost can be used for resin regeneration of the ion exchange column, meanwhile, sulfur dioxide enters a physical and chemical process, and waste is treated with waste.

Description

Technical Field

[0001] The present application relates to the technical field of thionyl chloride waste liquid treatment, and in particular to a treatment device for thionyl chloride waste liquid. Background Art

[0002] Sulfur oxychloride (Thionyl chloride) is an important basic organic chemical raw material, mainly used for chlorinating agent and chlorination of organic synthesis, and can also be used for closed-loop reaction and catalyst acyl chloride compounds synthesized by thiazoline, amide, etc., and can also be used for the production of pesticides, medicines, dyes, etc. However, thionyl chloride has a strong irritating odor, which is harmful to the body after inhalation, oral administration or percutaneous absorption. Therefore, a large amount of thionyl chloride waste liquid, if not treated and flowing into the environment, causes great harm to humans and the environment. Therefore, thionyl chloride is used to react with water to decompose and release toxic fumes and sulfurous acid that are irritating to hydrogen chloride, and alkali lye is used to absorb hydrogen chloride gas to achieve the purpose of treatment.

[0003] The prior art solution treats acidic gases such as hydrogen chloride by adding substances such as alkali solution or limestone slurry. For example, Chinese patent document: CN213853458U discloses a thionyl chloride waste liquid treatment device, including a body and a groove frame, the upper end of the body is provided with an exhaust port, and the top of the exhaust port is provided with a top cover, the upper end of the top cover is provided with a handle, a first pipe is provided at the lower right side of the body, and a one-way pump is provided on the surface of the first pipe, a movable plate is provided at the lower front end of the body, and bolts are provided around the movable plate, a water inlet is provided at the middle of the left side of the body, and a slurry outlet is provided below the water inlet, a slurry storage rack is provided above the interior of the body, and a nozzle is provided at the lower end of the slurry storage rack. The thionyl chloride waste liquid treatment device is provided with a slurry storage rack, and the limestone slurry inside the slurry storage rack effectively reacts with the thionyl chloride waste liquid and water to form hydrogen chloride and sulfur dioxide to mix to form calcium sulfate slurry and fall into the slurry pool, so as to reduce harmful gases as much as possible.

[0004] However, the existing technical solutions will cause waste of resources. First, the treatment of acidic gases increases the cost of auxiliary materials such as liquid alkali and limestone slurry. Secondly, the large granular secondary waste liquid still needs to be further processed, resulting in waste of resources. Thirdly, the hydrogen chloride and sulfurous acid produced during the treatment of thionyl chloride waste liquid cannot be reused. Summary of the invention

[0005] The embodiment of the present application provides a device and equipment for treating thionyl chloride waste liquid, which improves the resource utilization rate of thionyl chloride waste liquid and at least partially solves the above technical problems.

[0006] In order to achieve the above object, according to the first aspect of the present application, a treatment device for thionyl chloride waste liquid is provided, comprising:

[0007] A housing having a receiving cavity;

[0008] A water inlet pipe, provided with a water inlet channel, wherein the water inlet channel is communicated with the accommodating cavity;

[0009] An air intake pipe, provided with an air intake passage, the air intake passage being in communication with the accommodating cavity;

[0010] An air outlet pipe is provided with an air outlet passage, and the air outlet passage is communicated with the accommodating cavity;

[0011] A spray assembly is arranged in the accommodating cavity;

[0012] Wherein, the spray assembly is arranged between the water inlet pipe and the air inlet pipe;

[0013] The shell is also provided with a hydrochloric acid collecting tank, and the hydrochloric acid collecting tank is arranged on a side of the air inlet pipe away from the water inlet pipe.

[0014] Optionally,

[0015] The treatment device of the thionyl chloride waste liquid also includes:

[0016] The condensation component is arranged in the accommodating cavity and is located between the water inlet pipe and the spray component.

[0017] Optionally,

[0018] The air outlet pipe is arranged between the spray assembly and the condensation assembly.

[0019] Optionally,

[0020] The treatment device of the thionyl chloride waste liquid also includes:

[0021] The hydrochloric acid outlet pipe is provided with a hydrochloric acid channel and is communicated with the hydrochloric acid collecting tank.

[0022] Optionally,

[0023] The treatment device of the thionyl chloride waste liquid also includes:

[0024] A circulation pipe has one end connected to the hydrochloric acid outlet pipe and the other end connected to the shell.

[0025] Optionally,

[0026] The treatment device of the thionyl chloride waste liquid also includes:

[0027] The air distribution assembly is arranged in the accommodating cavity and is located between the water inlet pipe and the air inlet pipe.

[0028] Optionally,

[0029] The spray assembly includes: a plurality of independent spray parts;

[0030] The air distribution assembly includes: a plurality of independent air distribution parts.

[0031] Optionally,

[0032] The spraying part is arranged on a side of the air distribution part close to the air inlet pipe or on a side of the air distribution part close to the water inlet pipe.

[0033] Optionally,

[0034] The spray parts and the air distribution parts are alternately arranged at intervals, and the number of the spray parts is equal to the number of the air distribution parts.

[0035] According to the second aspect of the present application, there is also provided a treatment device for thionyl chloride waste liquid, comprising:

[0036] The device for treating thionyl chloride waste liquid described in the first aspect of the present application;

[0037] A pre-reactor connected to the air inlet pipe;

[0038] A storage device connected to the hydrochloric acid outlet pipe;

[0039] A physicochemical reactor is connected to the gas outlet pipe.

[0040] In the treatment device of thionyl chloride waste liquid of the embodiment of the present application, the shell is provided with a containing cavity; the water inlet pipe is provided with a water inlet channel, the water inlet channel is connected with the containing cavity; the air inlet pipe is provided with an air inlet channel, the air inlet channel is connected with the containing cavity; the air outlet pipe is provided with an air outlet channel, the air outlet channel is connected with the containing cavity; the spray assembly is arranged in the containing cavity; wherein the spray assembly is arranged between the water inlet pipe and the air inlet pipe; the shell is also provided with a hydrochloric acid collecting tank, and the hydrochloric acid collecting tank is arranged on the side of the air inlet pipe away from the water inlet pipe. Through the above technical scheme, thionyl chloride reacts with water to produce sulfide gases such as hydrogen chloride gas and sulfur dioxide. In the actual generation process, industrial hydrochloric acid with lower cost can be used for resin regeneration of ion exchange column, and sulfur dioxide enters the physical and chemical process at the same time, realizing waste treatment with waste, avoiding the secondary pollution caused by the prior art using liquid alkali or limestone slurry as absorbent.

[0041] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0043] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0044] Figure 1 is an internal cross-sectional view of a device for treating thionyl chloride waste liquid provided in an exemplary embodiment of the present disclosure;

[0045] Figure 2 is another internal cross-sectional view of a device for treating thionyl chloride waste liquid provided in an exemplary embodiment of the present disclosure;

[0046] Figure 3 is another internal cross-sectional view of a device for treating thionyl chloride waste liquid provided in an exemplary embodiment of the present disclosure;

[0047] Figure 4 is another internal cross-sectional view of the device for treating thionyl chloride waste liquid provided in an exemplary embodiment of the present disclosure;

[0048] Figure 5 Schematic diagram of the treatment principle of thionyl chloride waste liquid provided in an exemplary embodiment of the present disclosure;

[0049] Figure 6 is a schematic structural diagram of a thionyl chloride waste liquid treatment device provided in an exemplary embodiment of the present disclosure;

[0050] Description of reference numerals:

[0051] 100. Treatment device for thionyl chloride waste liquid;

[0052] 110, housing; 111, receiving cavity; 112, hydrochloric acid collecting tank;

[0053] 120. water inlet pipe; 121. water inlet channel;

[0054] 130. air intake pipe; 131. air intake passage;

[0055] 140, air outlet pipe; 141, air outlet passage;

[0056] 150. spray assembly; 151. spray unit;

[0057] 160. hydrochloric acid outlet pipe; 161. hydrochloric acid channel;

[0058] 170, circulation pipe;

[0059] 180, air distribution assembly; 181, air distribution unit;

[0060] 190, condensation assembly;

[0061] 1. Treatment equipment for thionyl chloride waste liquid;

[0062] 200, pre-reactor;

[0063] 300, storage device;

[0064] 400, physicochemical reactor; DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0066] According to the first aspect of the present application, referring to Figures 1 to 4 The present disclosure provides a treatment device 100 for thionyl chloride waste liquid, comprising: a shell 110, a water inlet pipe 120, an air inlet pipe 130, a water outlet pipe and a spray assembly 140.

[0067] The housing 110 forms a receiving cavity 111, the water inlet pipe 120 is provided with a water inlet channel 121, the water inlet pipe 120 is connected to the housing 110, and the water inlet channel 121 is communicated with the receiving cavity 111; the air inlet pipe 130 is provided with an air inlet channel 131, the air inlet pipe 130 is connected to the housing 110, and the air inlet channel 131 is communicated with the receiving cavity; the air outlet pipe 140 is provided with an air outlet channel 141, the air outlet pipe 140 is connected to the housing 110, and the air outlet channel 141 is communicated with the receiving cavity 111. The spray assembly 140 is disposed in the receiving cavity 111, and more specifically, the spray assembly 140 is disposed between the water inlet pipe 120 and the air inlet pipe 130. The shell 110 also forms a hydrochloric acid collecting tank 112, which is arranged on a side of the air inlet pipe 130 away from the water inlet pipe 120. In other words, the hydrochloric acid collecting tank 112 is arranged on the lower side of the accommodating cavity 111 and forms a corresponding space with the accommodating cavity 111.

[0068] After the pre-reaction, thionyl chloride generates hydrogen chloride and sulfide gas, which enter the accommodating cavity 111 through the air inlet channel 131 of the air inlet pipe 130. Tap water can enter the accommodating space through the water inlet channel 121 of the water inlet pipe 120 and be sprayed through the spray assembly 140. Water reacts with hydrogen chloride gas to generate industrial hydrochloric acid, which is deposited in the hydrochloric acid collection tank 112.

[0069] Industrial hydrochloric acid can be used in the company's actual production process for the exchange resin regeneration process. Because, ion exchange column is a commonly used equipment in the chemical industry for removing ions from the solution or for ion exchange. Resin is the key material in the ion exchange column, which can adsorb or exchange ions in the solution. However, over time, the resin will be saturated or lose its activity and needs to be regenerated to restore its performance. The regeneration process usually involves using acid or alkali to wash the resin to remove impurities attached to it or ions that have been exchanged.

[0070] The industrial hydrochloric acid produced above is used for resin regeneration, which not only saves the cost of purchasing new resin or regeneration agent, but also reduces the generation and emission of waste. This practice is in line with the concept of resource recycling and environmental protection, helps to reduce production costs, improve resource utilization efficiency, and reduce the impact on the environment.

[0071] As for the sulfide gas, it reacts less with the water sprayed by the spray assembly 140 in the containing cavity 111, and the other sulfide gas is discharged through the outlet channel 141 of the outlet pipe 140. The discharged sulfide gas can enter the company's physical and chemical treatment process. The so-called physical and chemical process means that the sulfide gas is introduced into the company's physical and chemical reaction process, as a raw material, reactant or treatment object, and participates in a series of complex physical and chemical processes to achieve specific production or treatment goals. Thereby, the sulfide gas is used as a neutralizer for waste alkali, thereby achieving the purpose of treating waste with waste.

[0072] Through the above technical solution, in the actual generation process of sulfide gas such as hydrogen chloride gas and sulfur dioxide produced by the reaction of thionyl chloride with water, industrial hydrochloric acid with lower cost can be used for resin regeneration of ion exchange column, and sulfur dioxide enters the physical and chemical process at the same time, achieving waste treatment with waste, thus avoiding the problem of secondary pollution caused by the existing technology of using liquid alkali or limestone slurry as absorbent.

[0073] In some embodiments of the present application, the thionyl chloride waste liquid treatment device 100 further includes a condensation assembly 190, which is disposed in the receiving cavity 111 and is located between the water inlet pipe 120 and the water spray pipe. The condensation assembly 190 can change the water entering the receiving cavity 111 to the water temperature required for the reaction, which helps to improve the treatment efficiency, protect the environment and recycle resources, and can also stabilize the process conditions and improve the product purity.

[0074] In some embodiments of the present application, the air outlet pipe 140 is arranged between the spray assembly 140 and the condensation assembly 190. Since the hydrogen chloride gas and sulfide gas to be reacted enter through the air inlet channel 131, the air inlet channel 131 is located at the bottom of the thionyl chloride waste liquid treatment device 100, and the air outlet pipe 140 is located at the upper part of the thionyl chloride waste liquid treatment device 100. The relative positions of the air outlet pipe 140, the spray assembly 140 and the air inlet pipe 130 are limited, so that after the gas to be reacted fully reacts with the water in the accommodating cavity 111, the gas that fails to react is discharged through the air outlet pipe 140.

[0075] In some embodiments of the present application, the treatment device 100 for thionyl chloride waste liquid further includes: a hydrochloric acid outlet pipe 160. The hydrochloric acid outlet pipe 160 is provided with a hydrochloric acid channel 161, and the hydrochloric acid channel 161 is connected to the hydrochloric acid collecting tank 112. After the hydrogen chloride gas reacts with the water sprayed from the spray assembly 140, the generated hydrochloric acid is deposited in the space of the hydrochloric acid collecting tank 112, and the hydrochloric acid in the hydrochloric acid collecting tank 112 is discharged from the treatment device 100 for thionyl chloride waste liquid through the hydrochloric acid channel 161.

[0076] In some embodiments of the present application, the device 100 for treating thionyl chloride waste liquid further includes a circulation pipe 170, which is connected to the cooling assembly. The circulation pipe 170 can effectively take away the heat in the cooling assembly, thereby reducing the temperature.

[0077] In some embodiments of the present application, reference Figures 2 to 4 The thionyl chloride waste liquid treatment device 100 further includes: a gas distribution component 180, which is arranged in the receiving cavity 111 and located between the water inlet pipe 120 and the air inlet pipe 130. The gas distribution component 180 makes the gas entering the receiving cavity 111 through the air inlet pipe 130 more uniform. Through the gas distribution component 180 and the spray component 140, the hydrogen chloride gas and water to be reacted can be fully reacted, thereby improving the reaction efficiency.

[0078] In some embodiments of the present application, the spray assembly 140 includes a plurality of independent spray parts 141, and the gas distribution assembly 180 includes a plurality of independent gas distribution parts 181. By providing the spray parts 141 and the gas distribution parts 181, the hydrogen chloride gas and water to be reacted are made more uniform. As a more specific embodiment, refer to Figure 3 The spraying part 141 is arranged on a side of the air distributing part 181 close to the air inlet pipe 130 or on a side of the air distributing part 181 close to the water inlet pipe 120; as another more specific solution, the spraying parts 141 and the air distributing parts 181 are alternately arranged at intervals, and the number of the spraying parts 141 is equal to the number of the air distributing parts 181. Figure 4For example, there are three spray sections 141 and three air distribution sections 181. The spray sections 141 and the air distribution sections 181 are arranged sequentially from top to bottom. After condensation, the tap water undergoes primary spraying, secondary spraying, and tertiary spraying, respectively, and the gas enters the third-stage air distribution, the second-stage air distribution, and the first-stage air distribution in sequence, making the gas and water more uniform and further improving the reaction efficiency.

[0079] According to the second aspect of the present disclosure, referring to Figure 5 and Figure 6 , a treatment device 1 for thionyl chloride waste liquid is provided, comprising: a treatment device 100 for thionyl chloride waste liquid provided in the first aspect of the present application, a pre-reactor 200, a storage 300 and a physicochemical reactor 400.

[0080] The pre-reactor 200 is connected to the air inlet pipe 130; the storage 300 is connected to the hydrochloric acid outlet pipe 160; and the physicochemical reactor 400 is connected to the outlet pipe 140. The thionyl chloride waste liquid reacts in the pre-reactor 200 to generate hydrogen chloride gas and sulfur dioxide gas, which enter the thionyl chloride waste liquid treatment device 100 through the air inlet pipe 130, and after being treated by the thionyl chloride waste liquid treatment device 100, the generated hydrochloric acid enters the storage 300 through the hydrochloric acid outlet pipe 160, and the sulfide gas enters the physicochemical reactor 400 through the outlet pipe 140.

[0081] The treatment equipment 1 for thionyl chloride waste liquid can automatically treat the thionyl chloride waste liquid, realizes the maximum utilization of resources, and has the technical effect of treating waste with waste.

[0082] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0083] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0085] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A treatment device for thionyl chloride waste liquid, characterized in that, include: A housing having a receiving cavity; A water inlet pipe, provided with a water inlet channel, wherein the water inlet channel is communicated with the accommodating cavity; An air intake pipe, provided with an air intake passage, the air intake passage being in communication with the accommodating cavity; An air outlet pipe is provided with an air outlet passage, and the air outlet passage is communicated with the accommodating cavity; A spray assembly is arranged in the accommodating cavity; Wherein, the spray assembly is arranged between the water inlet pipe and the air inlet pipe; The shell is also provided with a hydrochloric acid collecting tank, and the hydrochloric acid collecting tank is arranged on a side of the air inlet pipe away from the water inlet pipe.

2. The treatment device of thionyl chloride waste liquid according to claim 1, characterized in that, The treatment device of the thionyl chloride waste liquid also includes: The condensation component is arranged in the accommodating cavity and is located between the water inlet pipe and the spray component.

3. The treatment unit of thionyl chloride waste liquid according to claim 2, characterized in that, The air outlet pipe is arranged between the spray assembly and the condensation assembly.

4. The treatment unit of thionyl chloride waste liquid according to claim 2, characterized in that, The treatment device of the thionyl chloride waste liquid also includes: The hydrochloric acid outlet pipe is provided with a hydrochloric acid channel and is communicated with the hydrochloric acid collecting tank.

5. The treatment device for thionyl chloride waste liquid according to claim 4, characterized in that, The treatment device of the thionyl chloride waste liquid also includes: A circulation pipe has one end connected to the hydrochloric acid outlet pipe and the other end connected to the shell.

6. The treatment device for thionyl chloride waste liquid according to any one of claims 1 to 5, characterized in that: The treatment device of the thionyl chloride waste liquid also includes: The air distribution assembly is arranged in the accommodating cavity and is located between the water inlet pipe and the air inlet pipe.

7. The treatment device for thionyl chloride waste liquid according to claim 6, characterized in that, The spray assembly includes: a plurality of independent spray parts; The air distribution assembly includes: a plurality of independent air distribution parts.

8. The treatment device for thionyl chloride waste liquid according to claim 7, characterized in that, The spraying part is arranged on a side of the air distribution part close to the air inlet pipe or on a side of the air distribution part close to the water inlet pipe.

9. The treatment device for thionyl chloride waste liquid according to claim 7, characterized in that, The spray parts and the air distribution parts are alternately arranged at intervals, and the number of the spray parts is equal to the number of the air distribution parts.

10. A treatment device for thionyl chloride waste liquid, characterized in that: include: The device for treating thionyl chloride waste liquid according to any one of claims 1 to 9; A pre-reactor connected to the air inlet pipe; A storage device connected to the hydrochloric acid outlet pipe; A physicochemical reactor is connected to the gas outlet pipe.

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