System for producing byproduct sodium hypochlorite from chlorine-containing hydrochloric acid tail gas

Abstract

The utility model relates to the technical field of sodium hypochlorite preparation, in particular to a chlorine-containing hydrochloric acid tail gas byproduct sodium hypochlorite system which comprises a salt dissolving mechanism, a storage mechanism, a reaction mechanism, a feeding mechanism and a control mechanism, the control mechanism is fixedly connected with the salt dissolving mechanism, the reaction mechanism is fixedly connected with the salt dissolving mechanism, and the storage mechanism is fixedly connected with the salt dissolving mechanism. The feeding mechanism comprises a mounting frame, a feeding pipe and an electromagnetic valve, the arranged electromagnetic valve can be controlled in advance according to requirements of users and actual production, opening and closing of the valve in the feeding pipe are adjusted, and therefore the speed of tail gas entering the pretreater and stop of tail gas entering are controlled, and the design is simple to operate and convenient to operate. The problems that manual control is inconvenient when tail gas is conveyed to a preprocessor, quick response cannot be achieved when tail gas conveying needs to be stopped, and the control effect is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium hypochlorite preparation, in particular to a system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas as a by-product. Background Art

[0002] Sodium hypochlorite generator is a type of water treatment disinfection and sterilization equipment. This equipment uses salt water as raw material and produces sodium hypochlorite solution through electrolysis reaction. The exhaust gas discharged by existing hydrochloric acid processing equipment is not treated. The chlorine-containing hydrochloric acid exhaust gas can be used as raw material for the preparation of sodium hypochlorite and cannot be recycled, resulting in waste of resources and increased processing costs.

[0003] In the prior art, patent (CN206666648U) proposes a system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas as a by-product, comprising a chlorine-containing hydrochloric acid tail gas interface, a salt dissolving pump, a base, a preprocessor, a salt dissolving conduit, a salt dissolving tank, a sodium hypochlorite storage tank, a console, a salt dissolving chamber, a precision filter, a dilute brine tank, a sodium hypochlorite generator, a control panel, an online residual chlorine detector and an electrolysis power supply. The utility model first uses a chlorine processor in a preprocessor to react chlorine in the tail gas to produce sodium chloride, sodium hypochlorite and water, and then the sodium hypochlorite and hydrochloric acid in the tail gas are processed through a hydrochloric acid processor to produce hypochlorous acid and sodium chloride. Excess sodium hypochlorite and hypochlorous acid enter the storage tank, and sodium chloride and water enter the salt dissolving tank. After electrolysis by a sodium hypochlorite generator, sodium hypochlorite is produced and stored in the sodium hypochlorite storage tank. The chlorine-containing hydrochloric acid tail gas is fully utilized, resources are not wasted, and raw materials for preparing sodium hypochlorite are saved, thereby reducing processing costs.

[0004] However, in the above-mentioned prior art, it is not convenient to perform manual control when the exhaust gas is transported to the pre-processor, and a quick response cannot be achieved when the exhaust gas transport needs to be stopped, resulting in a low control effect. Utility Model Content

[0005] The purpose of the utility model is to provide a system for producing sodium hypochlorite as a by-product from chlorine-containing hydrochloric acid tail gas, which solves the problems of inconvenience in manual control when the tail gas is transported to a preprocessor, inability to respond quickly when the tail gas transport needs to be stopped, and low control effect by providing components.

[0006] To achieve the above-mentioned objectives, the utility model provides a system for producing sodium hypochlorite as a by-product from chlorine-containing hydrochloric acid tail gas, comprising a salt dissolving mechanism, a storage mechanism, a reaction mechanism, a feeding mechanism and a control mechanism, wherein the control mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, the reaction mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, the storage mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, the feeding mechanism comprises a mounting frame, a feeding pipe and a solenoid valve, the solenoid valve is fixedly connected to the feeding pipe and is located on the circumference of the feeding pipe, the feeding pipe is fixedly connected to the mounting frame and is located above the mounting frame, and the mounting frame is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism.

[0007] Wherein, the salt dissolving mechanism includes a base plate, a preprocessor, a salt dissolving tank, a salt dissolving conduit, a salt dissolving pump and a salt dissolving tank. The salt dissolving tank is fixedly connected to the base plate and is located above the base plate. The salt dissolving pump is fixedly connected to the salt dissolving tank and is located above the salt dissolving tank. One end of the salt dissolving conduit is fixedly connected to the salt dissolving pump and is located above the salt dissolving pump. The other end of the salt dissolving conduit is fixedly connected to the salt dissolving tank and is located on one side of the salt dissolving tank. The salt dissolving tank is fixedly connected to the base plate and is located above the base plate. The preprocessor is fixedly connected to the salt dissolving tank and is located on one side of the salt dissolving tank.

[0008] Wherein, the storage mechanism includes a storage tank and a storage conduit, one end of the storage conduit is fixedly connected to the storage tank and located above the storage tank, and the other end of the storage conduit is fixedly connected to the preprocessor and located above the preprocessor.

[0009] Wherein, the reaction mechanism includes a filter, a dilute brine tank and a generator, the generator is fixedly connected to the bottom plate and is located above the bottom plate, one side of the dilute brine tank is fixedly connected to the generator and is located on one side of the generator, the other side of the dilute brine tank is fixedly connected to the filter and is located on one side of the filter, and the filter is fixedly connected to the bottom plate and is located above the bottom plate.

[0010] Wherein, the control mechanism includes a console, an electrolysis power supply and a brine dosing pump, the brine dosing pump is fixedly connected to the console and located below the console, the electrolysis power supply is fixedly connected to the console and located on the inner wall of the console, and the console is fixedly connected to the base plate and located above the base plate.

[0011] The utility model discloses a system for producing sodium hypochlorite by-product from chlorine-containing hydrochloric acid tail gas. The solenoid valve currently provided can be pre-controlled according to the needs of the user and actual production, and the opening and closing of the valve in the feed pipe are adjusted to control the rate at which the tail gas enters the preprocessor and the stopping of the tail gas entry. The design is simple to operate and solves the problems of inconvenience in manual control when the tail gas is transported to the preprocessor, inability to achieve quick response when the tail gas transport needs to be stopped, and low control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas.

[0014] Figure 2 This is a front view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention.

[0015] Figure 3 It is a top view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention.

[0016] Figure 4 It is a right view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention.

[0017] In the figure: 101-salt dissolving mechanism, 102-storage mechanism, 103-reaction mechanism, 104-feeding mechanism, 105-control mechanism, 106-mounting frame, 107-feeding pipe, 108-solenoid valve, 109-base plate, 110-preprocessor, 111-salt dissolving tank, 112-salt dissolving conduit, 113-salt dissolving pump, 114-salt dissolving box, 115-storage tank, 116-storage conduit, 117-filter, 118-dilute brine tank, 119-generator, 120-control console, 121-electrolysis power supply, 122-brine dosing pump. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] See also Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention. Figure 2 This is the main view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention. Figure 3This is a top view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention. Figure 4 It is a right view of the system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas according to the present invention.

[0020] The utility model provides a system for producing sodium hypochlorite as a by-product from chlorine-containing hydrochloric acid tail gas, which comprises a salt dissolving mechanism 101, a storage mechanism 102, a reaction mechanism 103, a feeding mechanism 104 and a control mechanism 105. The feeding mechanism 104 comprises a mounting frame 106, a feeding pipe 107 and a solenoid valve 108. The salt dissolving mechanism 101 comprises a base plate 109, a pre-processor 110, a salt dissolving tank 111, a salt dissolving conduit 112, a salt dissolving pump 113 and a salt dissolving box 114. The storage mechanism 102 comprises a storage tank 115 and a storage conduit 116. The reaction mechanism 103 comprises a filter 117, a dilute brine tank 118 and a generator 119. The control mechanism 105 comprises a console 120, an electrolysis power supply 121 and a brine dosing pump 122.

[0021] According to this specific embodiment, the control mechanism 105 is fixedly connected to the salt dissolving mechanism 101, the reaction mechanism 103 is fixedly connected to the salt dissolving mechanism 101, the storage mechanism 102 is fixedly connected to the salt dissolving mechanism 101, the solenoid valve 108 is fixedly connected to the feeding pipe 107, the feeding pipe 107 is fixedly connected to the mounting bracket 106, the mounting bracket 106 is fixedly connected to the salt dissolving mechanism 101, the salt dissolving box 114 is fixedly connected to the bottom plate 109, the salt dissolving pump 113 is fixedly connected to the salt dissolving box 114, one end of the salt dissolving conduit 112 is fixedly connected to the salt dissolving pump 113, the other end of the salt dissolving conduit 112 is fixedly connected to the salt dissolving tank 111, the salt dissolving tank 111 is fixedly connected to the bottom plate 109, the preprocessor 110 is fixedly connected to the salt dissolving tank 111, one end of the storage conduit 116 is fixedly connected to the storage tank 115, and the other end of the storage conduit 116 is fixedly connected to the storage tank 115. One end is fixedly connected to the preprocessor 110, the generator 119 is fixedly connected to the base plate 109, one side of the dilute brine tank 118 is fixedly connected to the generator 119, the other side of the dilute brine tank 118 is fixedly connected to the filter 117, the filter 117 is fixedly connected to the base plate 109, the brine dosing pump 122 is fixedly connected to the console 120, the electrolysis power supply 121 is fixedly connected to the console 120, and the console 120 is fixedly connected to the base plate 109. The solenoid valve 108 currently provided can be pre-controlled according to the user and actual production needs, and the opening and closing of the valve in the feed pipe 107 can be adjusted to control the rate at which the exhaust gas enters the preprocessor 110 and the stopping of the exhaust gas entry. The design is simple to operate, and solves the problem that it is inconvenient to perform manual control when the exhaust gas is transported to the preprocessor 110, and it cannot respond quickly when the exhaust gas transport needs to be stopped, resulting in low control effect.

[0022] Among them, the control mechanism 105 is located above the salt dissolving mechanism 101, the reaction mechanism 103 is located above the salt dissolving mechanism 101, the storage mechanism 102 is located above the salt dissolving mechanism 101, the solenoid valve 108 is located on the peripheral side of the feed pipe 107, the feed pipe 107 is located above the mounting bracket 106, and the mounting bracket 106 is located above the salt dissolving mechanism 101. In order to prevent corrosion and leakage, the base plate 109 is made of anti-corrosion material, and an anti-corrosion sealing ring is provided at the interface of the preprocessor 110. A fastening sealing ring is provided at the connection between the feed pipe 107 and the preprocessor 110 to ensure the tightness of the connection between the feed pipe 107 and the preprocessor 110.

[0023] Secondly, the dissolved salt tank 114 is located above the bottom plate 109, the dissolved salt pump 113 is located above the dissolved salt tank 114, one end of the dissolved salt conduit 112 is located above the dissolved salt pump 113, the other end of the dissolved salt conduit 112 is located on one side of the dissolved salt tank 111, the dissolved salt tank 111 is located above the bottom plate 109, the pre-processor 110 is located on one side of the dissolved salt tank 111, one end of the storage conduit 116 is located above the storage tank 115, and the storage The other end of the conduit 116 is located above the pre-processor 110. The exhaust gas enters the pre-processor 110 through the feed pipe 107, and reacts with the chlorine processor in the pre-processor 110 to produce sodium chloride, sodium hypochlorite and water. The sodium hypochlorite and the hydrochloric acid in the exhaust gas are processed by the hydrochloric acid processor to produce hypochlorous acid and sodium chloride. The excess sodium hypochlorite and hypochlorous acid enter the storage tank 115 through the storage conduit 116, and the sodium chloride and water enter the salt dissolving tank 111.

[0024] At the same time, the generator 119 is located above the bottom plate 109, one side of the dilute brine tank 118 is located on one side of the generator 119, and the other side of the dilute brine tank 118 is located on one side of the filter 117. The filter 117 is located above the bottom plate 109, the brine dosing pump 122 is located below the console 120, the electrolysis power supply 121 is located on the inner wall of the console 120, and the console 120 is located above the bottom plate 109. The dissolved salt pump 113 pumps brine into the dissolved salt tank 114 through the dissolved salt conduit 112 to prepare dilute brine, and after being filtered by the filter 117, it enters the dilute brine tank 118. The brine dosing pump 122 transports the brine to the generator 119, and sodium hypochlorite is prepared after electrolysis. The electrolysis pump pumps the sodium hypochlorite into the storage tank 115, so that the chlorine-containing hydrochloric acid tail gas is fully utilized, resources are not wasted, and processing costs are reduced.

[0025] In the present embodiment, a chlorine-containing hydrochloric acid tail gas by-product sodium hypochlorite system is used to prevent corrosion and leakage. The bottom plate 109 is made of an anti-corrosion material component, and an anti-corrosion sealing ring is provided at the interface of the pre-processor 110. A fastening sealing ring is provided at the connection between the feed pipe 107 and the pre-processor 110 to ensure the tightness of the connection between the feed pipe 107 and the pre-processor 110. The tail gas enters the pre-processor 110 through the feed pipe 107, and reacts with the chlorine processor in the pre-processor 110 to prepare sodium chloride, sodium hypochlorite and water. The sodium hypochlorite and hydrochloric acid in the tail gas are reacted with the hydrochloric acid processor. Hypochlorous acid and sodium chloride are prepared, and excess sodium hypochlorite and hypochlorous acid enter the storage tank 115 through the storage conduit 116, and sodium chloride and water enter the salt dissolving tank 111. The salt dissolving pump 113 pumps brine into the salt dissolving tank 114 through the salt dissolving conduit 112 to prepare dilute brine. After being filtered by the filter 117, the brine enters the dilute brine tank 118. The brine dosing pump 122 transports the brine to the generator 119, and sodium hypochlorite is prepared after electrolysis. The electrolysis pump pumps the sodium hypochlorite into the storage tank 115. The chlorine-containing hydrochloric acid tail gas is fully utilized, resources are not wasted, and processing costs are reduced.

[0026] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas, comprising a salt dissolving mechanism, a storage mechanism, a reaction mechanism, and a control mechanism, wherein the control mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, the reaction mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, and the storage mechanism is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism, characterized in that: Also included is a feeding mechanism; The feeding mechanism includes a mounting frame, a feeding pipe and a solenoid valve. The solenoid valve is fixedly connected to the feeding pipe and is located on the peripheral side of the feeding pipe. The feeding pipe is fixedly connected to the mounting frame and is located above the mounting frame. The mounting frame is fixedly connected to the salt dissolving mechanism and is located above the salt dissolving mechanism.

2. The chlorine-containing hydrochloric acid tail gas by-product sodium hypochlorite system according to claim 1, characterized in that: The salt dissolving mechanism includes a base plate, a pre-processor, a salt dissolving tank, a salt dissolving conduit, a salt dissolving pump and a salt dissolving tank. The salt dissolving tank is fixedly connected to the base plate and is located above the base plate. The salt dissolving pump is fixedly connected to the salt dissolving tank and is located above the salt dissolving tank. One end of the salt dissolving conduit is fixedly connected to the salt dissolving pump and is located above the salt dissolving pump. The other end of the salt dissolving conduit is fixedly connected to the salt dissolving tank and is located on one side of the salt dissolving tank. The salt dissolving tank is fixedly connected to the base plate and is located above the base plate. The pre-processor is fixedly connected to the salt dissolving tank and is located on one side of the salt dissolving tank.

3. The chlorine-containing hydrochloric acid tail gas by-product sodium hypochlorite system as claimed in claim 2, characterized in that: The storage mechanism includes a storage tank and a storage conduit, one end of the storage conduit is fixedly connected to the storage tank and located above the storage tank, and the other end of the storage conduit is fixedly connected to the preprocessor and located above the preprocessor.

4. The system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas as a by-product as claimed in claim 3, wherein: The reaction mechanism includes a filter, a dilute brine tank and a generator. The generator is fixedly connected to the bottom plate and is located above the bottom plate. One side of the dilute brine tank is fixedly connected to the generator and is located on one side of the generator. The other side of the dilute brine tank is fixedly connected to the filter and is located on one side of the filter. The filter is fixedly connected to the bottom plate and is located above the bottom plate.

5. The system for producing sodium hypochlorite from chlorine-containing hydrochloric acid tail gas as a by-product as claimed in claim 4, wherein: The control mechanism includes a console, an electrolysis power supply and a brine dosing pump. The brine dosing pump is fixedly connected to the console and located below the console. The electrolysis power supply is fixedly connected to the console and located on the inner wall of the console. The console is fixedly connected to the base plate and located above the base plate.

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