Sodium chlorate evaporator

Abstract

The utility model discloses a sodium chlorate evaporation crystallizer, including casing, support frame, filter assembly, condenser and stirring mechanism, support frame is connected with the lower part of casing and fixes the casing, the condenser sets up at the top of casing and is in the intercommunication of casing, filter assembly sets up in the inside of casing and is located below the condenser, and the condenser is used to provide condensate to filter assembly, be provided with the fairlead in the casing, and the stirring mechanism includes driving motor and fan blade, and driving motor sets up at the bottom of casing, and the end of fan blade extends into the fairlead, and its bottom passes through the casing and is connected with driving motor, through setting up filter assembly in the casing, and filter assembly is communicated with condenser through the pipeline, and condenser provides the washing water source to filter assembly, and the crystal in steam can be adhered on the filter screen of filter assembly, and is washed from the bottom through the spray nozzle of filter assembly, can make crystal and impurity drop, can clean the filter screen, can avoid the condenser being adhered by crystal simultaneously, improves the service life of condenser.

Description

Technical Field

[0001] This utility model belongs to the field of evaporation crystallization technology, specifically relating to a sodium chlorate evaporator crystallizer. Background Technology

[0002] The core of sodium chlorate production lies in the crystallization process. Sodium chlorate production involves electrolyzing refined brine to obtain an electrolyte solution (containing NaClO3, NaCl, and water), which then undergoes evaporation and crystallization to separate the solid product. The crystallization process directly affects product purity, crystal morphology, and energy efficiency, making it a key area for process optimization. Traditional high-temperature evaporation crystallization methods have been phased out due to their small scale and high energy consumption, while vacuum evaporation crystallization technology has become mainstream due to its energy-saving advantages. However, existing vacuum evaporation crystallization devices, such as the one with application number CN201420091260.X, named "Vacuum Low-Temperature Evaporation Crystallizer," lack a filtration system between the condenser and the shell. This causes crystals in the vapor to condense in the top condenser, requiring frequent cleaning, affecting processing efficiency, and easily damaging the condenser. Utility Model Content

[0003] The purpose of this invention is to provide a sodium chlorate evaporator crystallizer. By setting a filter assembly in the shell, the filter assembly is connected to the condenser through a pipeline. The condenser provides a flushing water source to the filter assembly. The crystals in the steam will adhere to the filter screen of the filter assembly. The filter assembly is flushed from the bottom through the spray nozzles, which can make the crystals and impurities fall off and clean the filter screen. At the same time, it can prevent the condenser from being adhered to by crystals and improve the service life of the condenser.

[0004] This utility model is achieved through the following technical solution: A sodium chlorate evaporator crystallizer includes a shell, a support frame, a filter assembly, a condenser, and a stirring mechanism. The support frame is connected to the lower part of the shell to fix the shell. The condenser is located at the top of the shell and communicates with the shell. The filter assembly is located inside the shell and below the condenser. The condenser is used to provide condensate to the filter assembly. A guide tube is provided in the shell. The stirring mechanism includes a drive motor and fan blades. The drive motor is located at the bottom of the shell. The end of the fan blades extends into the guide tube, and the bottom of the fan blades passes through the shell and is connected to the drive motor.

[0005] Preferably, the filter assembly includes a water inlet pipe and a filter screen. The water inlet pipe is disposed below the filter screen and spaced apart from the filter screen. The water inlet pipe is connected to the condenser. The water inlet pipe has a plurality of spaced-apart spray nozzles, which are oriented toward the filter screen.

[0006] Preferably, the water inlet pipe includes a main pipe and a spray pipe. The main pipe is connected to the condenser and extends into the housing. The spray pipe is connected to the main pipe, and the spray nozzle is disposed on the spray pipe.

[0007] Preferably, the spray pipe has a cross-shaped structure.

[0008] Preferably, a fixing member is provided inside the housing at the position of the filter screen. The fixing member has a circular structure, and the filter screen has a disc-shaped structure. The fixing member is used to support and fix the filter screen.

[0009] Preferably, an inspection port is provided on the housing above the filter assembly.

[0010] Preferably, the housing has at least one supernatant collection port in the middle.

[0011] Preferably, a feed pipe is provided at the lower part of the housing, and the feed pipe is connected to the guide cylinder.

[0012] Preferably, a feeding pipe is provided in the middle of the shell, and the feeding pipe is connected to the middle of the guide tube.

[0013] Preferably, the bottom of the housing is provided with a crystal extraction port, and the crystal extraction port is hinged with a sealing door.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1) In this utility model, by setting a filter assembly in the housing, the filter assembly is connected to the condenser through a pipeline. The condenser provides a flushing water source to the filter assembly. Crystals in the steam will adhere to the filter screen of the filter assembly. The filter assembly is flushed from the bottom through the spray nozzles of the filter assembly, which can make the crystals and impurities fall off and clean the filter screen. At the same time, it can prevent the condenser from being adhered to by crystals and improve the service life of the condenser.

[0015] 2) In this utility model, the main pipe of the water inlet pipe in the filter assembly is connected to the condenser. The main pipe extends into the housing and is connected to a spray pipe. The spray pipe has a cross-shaped structure and multiple spray nozzles are provided on the spray pipe, which can fully cover the filter screen and thus fully rinse the filter screen. In addition, the spray nozzles are set upwards to avoid crystals in the steam from condensing at the spray nozzles and causing them to become clogged. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the sodium chlorate evaporator crystallizer of this utility model.

[0018] Figure 2 This is a top view of the sodium chlorate evaporator crystallizer of this utility model.

[0019] Wherein: 1-shell, 11-inspection port, 12-supernatant intake port, 13-feed pipe, 14-feeding pipe, 15-crystal extraction port, 16-sampling port, 2-condenser, 3-filter screen, 31-fixed component, 4-water inlet pipe, 41-main pipe, 42-spray pipe, 43-spray nozzle, 5-guide tube, 6-stirring mechanism, 61-drive motor, 62-fan blade, 7-support frame. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] Example 1: A sodium chlorate evaporator crystallizer, such as Figure 1 and Figure 2As shown, the device includes a housing 1, a support frame 7, a filter assembly, a condenser 2, and a stirring mechanism 6. The support frame 7 is connected to the lower part of the housing 1 to fix the housing 1. The housing 1 has a cylindrical structure. The condenser 2 is located at the top of the housing 1 and communicates with the housing 1. The filter assembly is located inside the housing 1 and below the condenser 2. The condenser 2 is used to supply condensate to the filter assembly. A guide tube 5 is provided in the housing 1. The guide tube 5 has a conical structure and is fixed in the housing 1 by a fixing member 31. Both the upper and lower ends of the guide tube 5 are open structures, with a larger diameter at the top and a smaller diameter at the bottom. The stirring mechanism 6 includes a drive motor 61 and a fan blade 62. The drive motor 61 is located at the bottom of the housing 1, and the end of the fan blade 62 extends into the guide tube 5, with its bottom penetrating through... The housing 1 is connected to the drive motor 61, which drives the fan blades 62 to rotate in the guide tube 5. A feed pipe 13 is located at the bottom of the housing 1, communicating with the guide tube 5. Liquid is added to the guide tube 5 through the feed pipe 13. The liquid rotates and churns in the guide tube 5, overflowing from the top of the guide tube 5 into the housing 1, and then circulating back into the bottom of the guide tube 5. As the liquid evaporates, crystals are deposited at the bottom of the housing 1. A crystal collection port 15 is located at the bottom of the housing 1, hinged to a sealing door. After the liquid has evaporated, the sealing door can be opened to collect the deposited sodium chlorate crystals. A sampling port 16 is located opposite the crystal collection port 15, allowing for crystal sampling and analysis to determine if crystal collection is possible. An inspection port 11 is located above the filter assembly on the housing 1, allowing observation of the degree of crystal adhesion on the filter assembly to determine if rinsing is necessary. The shell 1 has three supernatant extraction ports 12 in the middle, through which the supernatant can be extracted for testing and analysis. The shell 1 also has a feeding pipe 14 in the middle, which is connected to the middle of the guide cylinder 5, allowing auxiliary materials to be added directly into the guide cylinder 5, so that the auxiliary materials can be quickly diffused in the liquid.

[0022] Example 2: This embodiment further defines the filtering component based on the above embodiments, such as... Figure 1As shown, the filter assembly includes an inlet pipe 4 and a filter screen 3. A fixing member 31 is provided inside the housing 1 at the position of the filter screen 3. The fixing member 31 has a circular structure and is welded or bolted to the inner wall of the housing 1. The filter screen 3 has a disc-shaped structure and is set on the fixing member 31. The fixing member 31 is used to support and fix the filter screen 3. The water inlet pipe 4 is positioned below and spaced apart from the filter screen 3. The water inlet pipe 4 is connected to the condenser 2 and has multiple spaced-apart spray nozzles 43 facing the filter screen 3. The water inlet pipe 4 includes a main pipe 41 and a spray pipe 42. The main pipe 41 is connected to the condenser 2 and extends into the housing 1. The spray pipe 42 is connected to the main pipe 41 and positioned above it. The spray nozzles 43 are positioned on the spray pipe 42, which has a cross-shaped structure. The spray nozzles 43 are arranged in an array on the spray pipe 42 to ensure that the spray range covers the entire filter screen 3, thereby thoroughly rinsing the crystals on the filter screen 3 and ensuring its cleanliness. Other parts of this embodiment are the same as those in the above embodiment and will not be repeated here.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A sodium chlorate evaporator crystallizer, characterized in that, The device includes a housing, a support frame, a filter assembly, a condenser, and a stirring mechanism. The support frame is connected to the lower part of the housing to fix the housing. The condenser is located at the top of the housing and communicates with the housing. The filter assembly is located inside the housing and below the condenser. The condenser is used to provide condensate to the filter assembly. A guide tube is provided in the housing. The stirring mechanism includes a drive motor and fan blades. The drive motor is located at the bottom of the housing. The end of the fan blades extends into the guide tube, and the bottom of the fan blades passes through the housing and is connected to the drive motor.

2. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, The filter assembly includes a water inlet pipe and a filter screen. The water inlet pipe is located below the filter screen and spaced apart from it. The water inlet pipe is connected to the condenser. The water inlet pipe has multiple spray nozzles arranged at intervals, and the spray nozzles are oriented towards the filter screen.

3. The sodium chlorate evaporator crystallizer as described in claim 2, characterized in that, The water inlet pipe includes a main pipe and a spray pipe. The main pipe is connected to the condenser and extends into the housing. The spray pipe is connected to the main pipe, and the spray nozzle is installed on the spray pipe.

4. The sodium chlorate evaporator crystallizer as described in claim 3, characterized in that, The spray pipe has a cross-shaped structure.

5. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, A fixing component is provided inside the housing at the location of the filter screen. The fixing component has a circular structure, and the filter screen has a disc-shaped structure. The fixing component is used to support and fix the filter screen.

6. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, An inspection port is provided on the housing above the filter assembly.

7. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, The housing has at least one supernatant extraction port in its middle section.

8. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, The lower part of the housing is provided with a feed pipe, which is connected to the guide tube.

9. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, A feeding pipe is provided in the middle of the shell, and the feeding pipe is connected to the middle of the guide tube.

10. The sodium chlorate evaporator crystallizer as described in claim 1, characterized in that, The bottom of the housing is provided with a crystal extraction port, which is hinged to a sealing door.

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