Chlorate decomposition device

Abstract

This invention provides a chlorate decomposition device, including a chlorate decomposition tank. The tank is divided into multiple decomposition cells by horizontal baffles from top to bottom. Each cell has a reactant inlet, a liquid outlet, and a gas outlet. Each gas outlet is connected to an exhaust port at the top of the tank. The device also includes a hydrochloric acid tank and a brine tank. Each tank is connected to a mixer via a pump and a flow valve. A flow meter is installed at the mixer outlet, and the flow meter outlet is connected to the reactant inlet via multiple branch lines. Each branch line is equipped with a solenoid valve. The flow meter and each solenoid valve are electrically connected to a controller. A heater is also provided between the brine tank and the corresponding pump. This invention allows control of the chlorate decomposition device's operation based on the required amount of chlorate to be processed, thereby improving the decomposition efficiency of chlorate in brine.

Description

Technical Field

[0001] This utility model relates to the field of chlorate decomposition technology, and in particular to a chlorate decomposition device. Background Technology

[0002] In the electrolysis process of caustic soda production via ion-exchange membranes, a series of side reactions occur within the electrolytic cell due to factors such as the dissolution of anode products and the migration and diffusion of cathode and anode products during energization, resulting in the formation of chlorate. When the concentration of chlorate in the anode system is too high, some chlorate will pass through the ion-exchange membrane into the cathode chamber, leading to an increase in the chlorate content in the product caustic soda and affecting its quality. Furthermore, high chlorate content in caustic soda can corrode equipment and pipelines in subsequent evaporation and concentration processes, and generate hypochlorous acid during the regeneration of the chelating resin tower, causing serious damage to the resin. Therefore, it is essential to decompose and remove chlorate from the brine and control the chlorate content in the system within a certain range to ensure stable system operation.

[0003] Currently, chlorate decomposition devices are commonly used to decompose chlorate in brine. The principle of this method is to heat the brine containing chlorate produced in the electrolytic cell and mix it with hydrochloric acid of a certain concentration. The mixed liquid is then sent into the chlorate decomposition tank for reaction, thereby decomposing the chlorate.

[0004] However, in actual production, during the initial stage of operation of the ion-exchange membrane system for producing caustic soda, the amount of chlorate produced by side reactions is relatively small, and the corresponding throughput of the chlorate decomposition unit is also small. But as the ion-exchange membrane system progresses, the number of side reactions within the electrolyzer increases, resulting in a corresponding increase in the amount of chloric acid solution produced, and consequently, a greater throughput of the chlorate decomposition unit. Existing chlorate decomposition units often use a single, fixed-volume vertical or horizontal reaction vessel (or tank) as the site for chlorate decomposition. The throughput of such units is fixed and cannot be flexibly adjusted according to changes in chlorate production. When the amount of chlorate increases in the later stages of system operation, the insufficient processing capacity of the unit leads to a decrease in decomposition efficiency. Utility Model Content

[0005] This invention provides a chlorate decomposition device to solve the problem that the processing capacity of existing chlorate decomposition devices cannot be flexibly adjusted according to changes in the amount of chlorate generated.

[0006] This invention provides a chlorate decomposition device, including a chlorate decomposition tank. The chlorate decomposition tank is divided into multiple decomposition tanks from top to bottom by multiple horizontal baffles. Each decomposition tank has a reactant inlet, a liquid outlet, and a gas outlet. Each gas outlet is connected to an exhaust port at the top of the chlorate decomposition tank. The device also includes a hydrochloric acid tank and a brine tank. Each hydrochloric acid tank and brine tank is connected to a mixer via a delivery pump and a flow valve. A flow meter is installed at the outlet of the mixer. The outlet of the flow meter is connected to the reactant inlet via multiple branch lines, each branch line equipped with a solenoid valve. The flow meter and each solenoid valve are electrically connected to a controller. A heater is also provided between the brine tank and the corresponding delivery pump.

[0007] Optionally, a gas collecting pipe is vertically installed inside the chlorate decomposition tank. The gas collecting pipe passes through multiple decomposition tanks from bottom to top and is connected to the exhaust port. Multiple gas collecting branch pipes are horizontally installed in the upper half of each decomposition tank. One end of the gas collecting branch pipe is connected to the gas collecting pipe, and the other end is connected to the gas phase outlet.

[0008] Optionally, the reactant inlet is located at the upper end of the side wall of the decomposition tank, and the liquid phase outlet is located at the lower end of the side wall away from the reactant inlet; each decomposition tank is also provided with multiple baffles on the bottom plate, the baffles include multiple alternating central plates and multiple double side plates, the maximum cross-section of the central plates and double side plates is perpendicular to the overall flow direction of the material, and the height of the baffles is lower than the height of the reactant inlet.

[0009] Optionally, the baffles located at the reactant inlet and the liquid phase outlet are both central plates.

[0010] Optionally, each decomposition tank has two bubbling tubes arranged in parallel. The portion of the bubbling tube located inside the decomposition tank has multiple air holes evenly distributed. The length direction of the bubbling tube is consistent with the overall flow direction of the material. The bubbling tube passes through the side wall of the decomposition tank and multiple baffles in sequence along the material flow direction and abuts against the inner side wall of the decomposition tank. The inlet ends of the two bubbling tubes in each decomposition tank are connected to a bubbling branch pipe. Each bubbling branch pipe is connected to a bubbling main pipe. The inlet end of the bubbling main pipe is connected to a steam heat pipe. Each bubbling branch pipe is equipped with a steam valve.

[0011] Optionally, each steam valve is electrically connected to a uniform controller.

[0012] Optionally, each liquid outlet is connected to the dechlorination tower via a drain pump and a drain valve, and each drain valve is also electrically connected to the controller.

[0013] The beneficial effects of the chlorate decomposition device provided by this utility model are as follows:

[0014] 1. The interior of the chlorate decomposition tank is divided into multiple decomposition tanks by horizontal baffles, each capable of decomposing chlorate independently. Simultaneously, a flow meter detects the flow rate of the mixture, and a controller, based on the detection results, opens solenoid valves on one or more corresponding branch lines, allowing the mixture to enter different decomposition tanks for decomposition. The synergistic effect of these structures allows for control of the chlorate decomposition device's operating state according to the required amount of chlorate to be processed, thereby improving the decomposition efficiency of chlorate in brine.

[0015] 2. Through the coordinated action of the gas phase outlet, gas collecting branch pipe and gas collecting pipe, chlorine gas in each decomposition tank can be collected and discharged, avoiding the situation where excessive accumulation of chlorine gas in the decomposition tank leads to a decrease in the decomposition efficiency of chlorate.

[0016] 3. The flow-blocking effect of the baffles can prolong the residence time of the mixture in the decomposition tank, thereby improving the decomposition efficiency of chlorate. At the same time, the flow-blocking effect of the center plate and the double side plates in different directions can also increase the turbulence of the material, thereby further improving the decomposition efficiency of chlorate.

[0017] 4. By installing bubbling pipes with vents in the decomposition tank, high-temperature steam can be introduced into the decomposition tank through steam heating pipes after the material enters the tank. The high-temperature steam enters the decomposition tank through the vents, heating the material on one hand and stirring it on the other. Both of these effects can improve the efficiency of chlorate decomposition. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 One of the structural schematic diagrams of the chlorate decomposition device provided in the embodiments of this utility model;

[0020] Figure 2 One of the three-dimensional structural schematic diagrams of the chlorate decomposition tank provided in the embodiment of this utility model;

[0021] Figure 3 A second three-dimensional structural schematic diagram of the chlorate decomposition tank provided for an embodiment of this utility model;

[0022] Figure 4 A front sectional view of the chlorate decomposition tank provided in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the decomposition tank provided in an embodiment of the present utility model;

[0024] Figure 6 A top sectional view of the decomposition groove provided in an embodiment of this utility model;

[0025] Figure 7 This is the second schematic diagram of the chlorate decomposition device provided in the embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Chlorate decomposition tank, 2-Hydrochloric acid tank, 3-Dilute brine tank, 4-Mixer, 5-Heater, 6-Dechlorination tower, 21-Transfer pump, 22-Flow valve, 41-Flow meter, 42-Diverter line, 43-Solenoid valve, 44-Controller, 101-Horizontal baffle, 102-Decomposition tank, 103-Reactant inlet, 104-Liquid phase outlet, 105-Gas phase outlet, 106-Exhaust port, 107-Gas collecting pipe, 108-Gas collecting branch pipe, 109-Baffle plate, 110-Center plate, 111-Double side plate, 112-Bubble pipe, 113-Vacuum vent, 114-Bubble branch pipe, 115-Bubble main pipe, 116-Steam valve, 117-Drain pump, 118-Drain valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this utility model.

[0029] like Figure 1-6As shown, this utility model provides a chlorate decomposition device, including a chlorate decomposition tank 1. The chlorate decomposition tank 1 is divided into multiple decomposition tanks 102 by multiple horizontal partitions 101 from top to bottom. Each decomposition tank 102 is provided with a reactant inlet 103, a liquid outlet 104, and a gas outlet 105. Each gas outlet 105 is connected to an exhaust port 106 at the top of the chlorate decomposition tank 1. It also includes a hydrochloric acid tank 2 and a brine tank 3. The hydrochloric acid tank 2 and the brine tank 3 are each connected to a mixer 4 through a delivery pump 21 and a flow valve 22. A flow meter 41 is provided at the outlet of the mixer 4. The outlet side of the flow meter 41 is connected to the reactant inlet 103 one by one through multiple branch lines 42. Each branch line 42 is equipped with a solenoid valve 43. The flow meter 41 and each solenoid valve 43 are electrically connected to a controller 44. A heater 5 is also provided between the brine tank 3 and the corresponding delivery pump 21.

[0030] In operation, the brine from the electrolytic cell enters the brine tank 3 for buffering to stabilize its pressure and flow. Before decomposing the chlorate in the brine, the brine is discharged from the brine tank 3 and heated by the heater 5. The heated brine is then pumped by the transfer pump 21, with the flow rate controlled by the flow valve 22, and then sent to the mixer 4. Simultaneously, hydrochloric acid flows from the hydrochloric acid tank 2 and is pumped by the corresponding transfer pump 21 and flow valve 22 to the mixer 4 to mix with the brine.

[0031] The mixed brine and hydrochloric acid materials are discharged from mixer 4 and then sent to chlorate decomposition tank 1 for reaction and decomposition. Before the mixture is discharged from mixer 4 and enters chlorate decomposition tank 1, the flow rate of the material is first detected by a flow meter 41. The flow meter 41 feeds back the detected material flow rate to the controller 44, which controls the opening and closing of the corresponding solenoid valves 43 on each branch line 42 according to the material flow rate, thereby controlling the mixture to enter one or more decomposition tanks 102 for reaction and decomposition.

[0032] Specifically, the flow meter 41 detects the flow rate of the mixture and feeds the result back to the controller 44. When the flow rate of the mixture is low, the controller 44 controls the corresponding solenoid valve 43 on a branch line 42 to open, and the mixture enters the corresponding decomposition tank 102 for reaction. The chlorine gas generated during the reaction is discharged from the decomposition tank 102 through the gas phase outlet 105, and finally discharged from the chlorate decomposition tank 1 through the exhaust port 106 and enters the chlorine discharge main pipe. The dilute brine after chlorate removal is discharged from the liquid phase outlet 104 for further processing. When the flow rate of the mixture measured by the flow meter 41 is too high, the controller 44 controls the opening of two or more corresponding solenoid valves 43 on the branch lines 42 according to the set value, thereby allowing the mixture to enter multiple decomposition tanks 102 for reaction and decomposition. The specific decomposition process is consistent with the process of opening one solenoid valve 43, and will not be described in detail here.

[0033] The chlorate decomposition device provided by this invention divides the interior of the chlorate decomposition tank 1 into multiple decomposition tanks 102 by a horizontal partition 101, each of which can decompose chlorate independently. Simultaneously, a flow meter 41 detects the flow rate of the mixture, and a controller 44 controls the opening of solenoid valves 43 on one or more corresponding branch lines 42 based on the detection results, allowing the mixture to enter different decomposition tanks 102 for decomposition. The synergistic effect of these structures allows the operating state of the chlorate decomposition device to be controlled according to the amount of chlorate to be processed, thereby improving the decomposition efficiency of chlorate in brine.

[0034] Meanwhile, when the amount of chlorate to be processed is large, it is distributed to multiple decomposition tanks 102 for simultaneous decomposition, which further improves the decomposition efficiency of chlorate.

[0035] like Figure 4 As shown, further, a gas collecting pipe 107 is vertically arranged inside the chlorate decomposition tank 1. The gas collecting pipe 107 passes through multiple decomposition tanks 102 from bottom to top and is connected to the exhaust port 106. Multiple gas collecting branch pipes 108 are horizontally arranged in the upper half of each decomposition tank 102. One end of the gas collecting branch pipe 108 is connected to the gas collecting pipe 107, and the other end is connected to the gas phase outlet 105.

[0036] Chlorine gas is generated during the decomposition of chlorate. The chlorine gas generated in each decomposition tank 102 is collected through the gas phase outlet 105 set at the top of the decomposition tank 102, and sent to the gas collection pipe 107 through the gas collection branch pipe 108. Finally, it is sent to the exhaust port 106 through the gas collection pipe 107 and discharged from the chlorate decomposition tank 1.

[0037] Through the coordinated action of the gas phase outlet 105, the gas collecting branch pipe 108 and the gas collecting pipe 107, chlorine gas in each decomposition tank 102 can be collected and discharged, avoiding the situation where excessive accumulation of chlorine gas in the decomposition tank 102 leads to a decrease in the decomposition efficiency of chlorate.

[0038] like Figure 4-6 As shown, further, the reactant inlet 103 is located at the upper end of the side wall of the decomposition tank 102, and the liquid phase outlet 104 is located at the lower end of the side wall away from the reactant inlet 103; each decomposition tank 102 is also provided with a plurality of baffles 109 on its bottom plate. The baffles 109 include a plurality of alternating central plates 110 and a plurality of double-side plates 111. The maximum cross-section of the central plates 110 and the double-side plates 111 is perpendicular to the overall flow direction of the material, and the height of the baffles 109 is lower than the height of the reactant inlet 103. Further, the baffles 109 located at the reactant inlet 103 and the liquid phase outlet 104 are both central plates 110.

[0039] When the mixture enters the decomposition tank 102 from the reactant inlet 103, it will be deflected by the baffle 109 to prolong the residence time of the mixture in the decomposition tank 102, thereby improving the decomposition efficiency of chlorate.

[0040] The specific flow diversion process is as follows: The mixture enters the decomposition tank 102 from the reactant inlet 103, and is first blocked by the central plate 110, thus diverting it to both sides. After the mixture flows along the side wall of the decomposition tank 102 and bypasses the central plate 110, it is blocked by the double side plates 111, and then flows back towards the center of the decomposition tank 102 to bypass the double side plates 111. After bypassing the double side plates 111, the material will encounter the next central plate 110, and this process is repeated multiple times until it bypasses the last central plate 110. Then, the mixture flows along the side wall of the decomposition tank 102 to the liquid phase outlet 104, and flows out from the liquid phase outlet 104 to enter the next stage for processing.

[0041] The mixture is blocked and deflected by the baffle plate 109, which not only increases the residence time of the material in the decomposition tank 102, but also, in conjunction with the deflection effect of the center plate 110 and the double side plates 111 in different directions, increases the turbulence of the material, thereby further improving the decomposition efficiency of chlorate.

[0042] like Figure 2-6As shown, further, two bubbling pipes 112 are arranged in parallel within each decomposition tank 102. Multiple air holes 113 are evenly distributed on the portion of the bubbling pipe 112 located within the decomposition tank 102. The length direction of the bubbling pipe 112 is consistent with the overall flow direction of the material. The bubbling pipe 112 sequentially penetrates the side wall of the decomposition tank 102 and multiple baffles 109 along the material flow direction, and abuts against the inner side wall of the decomposition tank 102. The inlet ends of the two bubbling pipes 112 in each decomposition tank 102 are connected to a bubbling branch pipe 114, and each bubbling branch pipe 114 is connected to a bubbling main pipe 115. The inlet end of the bubbling main pipe 115 is connected to a steam heat pipe. A steam valve 116 is installed on each bubbling branch pipe 114. Further, each steam valve 116 is electrically connected to a controller 44.

[0043] Each decomposition tank 102 is equipped with a bubbling pipe 112 with vents 113. When the material enters the decomposition tank 102, high-temperature steam can be introduced into it through a steam heat pipe (not shown in the figure). The high-temperature steam enters the decomposition tank 102 through the vents 113, heating the material on one hand and stirring it on the other. Both of these effects can improve the efficiency of chlorate decomposition.

[0044] The inlet end of the bubbling pipe 112 is connected to the bubbling branch pipe 114, and the inlet end of each bubbling branch pipe 114 is connected to the bubbling main pipe 115. Each bubbling branch pipe 114 is also equipped with a steam valve 116 electrically connected to the controller 44. The controller 44 controls the opening and closing of each steam valve 116 synchronously with the solenoid valve 43. That is, when the controller 44 opens the solenoid valve 43 on one or more branch pipes 42, the mixture enters the corresponding decomposition tank 102. Then, the controller 44 controls the steam valve 116 on the bubbling branch pipe 114 connected to the bubbling pipe 112 in the corresponding decomposition tank 102 to open, allowing steam to enter the decomposition tank 102 containing the mixture for heating and stirring.

[0045] like Figure 7 As shown, each liquid outlet 104 is further connected to the dechlorination tower 6 via a drain pump 117 and a drain valve 118, and each drain valve 118 is also electrically connected to the controller 44.

[0046] Once the chlorate in the mixture has decomposed, the controller 44 activates the corresponding drain pump 117 and drain valve 118, thereby discharging the brine from the decomposition tank 102 through the liquid outlet 104. The discharged brine is then sent to the dechlorination tower 6 for further processing.

[0047] The complete working principle and process of the chlorate decomposition device provided by this utility model are as follows:

[0048] like Figure 1-7 As shown, during operation of the chlorate decomposition device, brine from the electrolytic cell enters the brine tank 3 for buffering to stabilize its pressure and flow. Before decomposing chlorate in the brine, the brine is discharged from the brine tank 3 and heated by the heater 5. The heated brine is then pumped by the transfer pump 21, with its flow rate controlled by the flow valve 22, and finally sent to the mixer 4. Simultaneously, while the brine is discharged from the brine tank 3 and heated and flow-controlled to the mixer 4, hydrochloric acid also flows from the hydrochloric acid tank 2 and is pumped by the corresponding transfer pump 21 and flow valve 22 to the mixer 4 to mix with the brine.

[0049] The mixed brine and hydrochloric acid materials are discharged from the mixer 4. The flow rate of the mixture is detected by the flow meter 41, and the result is fed back to the controller 44. When the flow rate of the mixture is low, the controller 44 controls the corresponding solenoid valve 43 on a branch line 42 to open, and the mixture enters the corresponding decomposition tank 102 for reaction. The chlorine gas generated during the reaction is discharged from the decomposition tank 102 through the gas phase outlet 105, and finally discharged from the chlorate decomposition tank 1 through the exhaust port 106 and enters the chlorine discharge main pipe. The brine after chlorate removal is discharged from the liquid phase outlet 104 for further processing. When the flow rate of the mixture measured by the flow meter 41 is too high, the controller 44 controls the opening of two or more corresponding solenoid valves 43 on the branch lines 42 according to the set value, so that the mixture enters multiple decomposition tanks 102 for reaction and decomposition.

[0050] When the mixture enters the chlorate decomposition tank 1, specifically the decomposition tank 102, it is blocked by the central plate 110, thus diverting it to both sides. After the mixture flows along the side wall of the decomposition tank 102 and around the central plate 110, it is blocked again by the double side plates 111, and then flows back towards the center of the decomposition tank 102 to bypass the double side plates 111. After bypassing the double side plates 111, the material encounters the next central plate 110, and this process repeats multiple times until it bypasses the last central plate 110. The mixture then flows along the side wall of the decomposition tank 102 to the liquid phase outlet 104 and exits from there. While the baffle plate 109 deflects the material, the controller 44 controls the corresponding steam valve 116 of the decomposition tank 102 to open, and high-temperature steam from the steam heat pipe enters the decomposition tank 102 through the vent 113 to heat and stir the material.

[0051] Excess steam and chlorine produced from chlorate decomposition are collected through gas phase outlet 105 and sent to gas collection pipe 107 via gas collection branch pipe 108. Finally, the gas is discharged from chlorate decomposition tank 1 via exhaust port 106 through gas collection pipe 107. After the chlorate in the mixture has been decomposed, controller 44 controls the corresponding drain pump 117 and drain valve 118 to open, thereby discharging the brine in the corresponding decomposition tank 102 through liquid phase outlet 104. The discharged brine is sent to dechlorination tower 6 for further processing.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chlorate salt decomposition apparatus, characterized by, The chlorate decomposition tank (1) is divided into multiple decomposition tanks (102) from top to bottom by multiple horizontal partitions (101). Each decomposition tank (102) is provided with a reactant inlet (103), a liquid phase outlet (104) and a gas phase outlet (105). Each gas phase outlet (105) is connected to the exhaust port (106) at the top of the chlorate decomposition tank (1). It also includes a hydrochloric acid tank (2) and a saline tank (3). The hydrochloric acid tank (2) and the saline tank (3) are each connected to the mixer (4) through a delivery pump (21) and a flow valve (22). A flow meter (41) is provided at the outlet of the mixer (4). The outlet side of the flow meter (41) is connected to the reactant inlet (103) one by one through multiple branch lines (42). A solenoid valve (43) is installed on each branch line (42). The flow meter (41) and each solenoid valve (43) are electrically connected to the controller (44). A heater (5) is also provided between the brine tank (3) and the corresponding transfer pump (21).

2. The chlorate salt decomposition apparatus of claim 1, wherein The chlorate decomposition tank (1) is vertically equipped with a gas collecting pipe (107), which passes through multiple decomposition tanks (102) from bottom to top and is connected to the exhaust port (106). Each of the decomposition tanks (102) has a plurality of gas collecting branch pipes (108) horizontally arranged in the upper half. One end of the gas collecting branch pipe (108) is connected to the gas collecting pipe (107), and the other end is connected to the gas phase outlet (105).

3. The chlorate salt decomposition apparatus of claim 1, wherein, The reactant inlet (103) is located at the upper end of the side wall of the decomposition tank (102), and the liquid phase outlet (104) is located at the lower end of the side wall away from the reactant inlet (103). Each of the decomposition tanks (102) is also provided with a plurality of baffles (109) on its bottom plate. The baffles (109) include a plurality of alternating center plates (110) and a plurality of double side plates (111). The maximum cross-section of the center plates (110) and the double side plates (111) is perpendicular to the overall flow direction of the material, and the height of the baffles (109) is lower than the height of the reactant inlet (103).

4. The chlorate salt decomposition apparatus of claim 3, wherein The baffles (109) located at the reactant inlet (103) and the liquid phase outlet (104) are both central plates (110).

5. The chlorate decomposition apparatus according to claim 3, characterized in that, Two bubbling tubes (112) are arranged in parallel in each decomposition tank (102). Multiple air holes (113) are evenly opened on the part of the bubbling tube (112) located in the decomposition tank (102). The length direction of the bubbling tube (112) is consistent with the overall flow direction of the material. The bubbling tube (112) passes through the side wall of the decomposition tank (102) and multiple baffles (109) in sequence along the material flow direction and abuts against the inner side wall of the decomposition tank (102). The inlet ends of the two bubbling tubes (112) in each of the decomposition tanks (102) are connected to a bubbling branch tube (114), and each bubbling branch tube (114) is connected to a bubbling main tube (115), the inlet end of which is connected to a steam heat pipe. Each of the bubbling branch pipes (114) is equipped with a steam valve (116).

6. The chlorate salt decomposition apparatus of claim 5, wherein, Each of the steam valves (116) is electrically connected to the controller (44).

7. The chlorate salt decomposition apparatus of claim 1, wherein, Each of the liquid outlets (104) is connected to the dechlorination tower (6) via a drain pump (117) and a drain valve (118), and each drain valve (118) is also electrically connected to the controller (44).

Images