A purifier for sugar beet

Abstract

The utility model discloses a beet sugar making is with clarifying device relates to beet sugar making industry technical field. It includes the pre -ash box, main ash box, one carbon satiation jar, filter no.

Description

Technical Field

[0001] This utility model relates to the field of beet sugar production technology, and in particular to a device for the cleaning process in beet sugar production. Background Technology

[0002] Beet sugar production involves a series of processes including leaching, purification, concentration, crystallization, and separation. Among these, the purification process of the leaching juice is crucial, directly determining the final quality of the granulated sugar. The main purpose of the purification process is to remove non-sucrose impurities such as pigments, pigment precursors, starch, pectin, proteins, amino acids, colloids, and inorganic salts from the leaching juice, providing high-quality raw syrup for the subsequent sugar boiling process.

[0003] For a long time, my country's sugar beet industry has used the carbonation process as a purification technique. As shown in Figure 1, the carbonation purification process mainly utilizes the reaction of lime milk with carbon dioxide to generate calcium carbonate precipitate, which removes impurities from the sugar juice through adsorption and co-precipitation. Key steps include pre-ashing, main ashing, first-carbon saturation, and second-carbon saturation. In the pre-ashing stage, lime milk is added to neutralize the acidity of the sugar juice, causing some colloids to coagulate; the main ashing stage further adjusts the chemical environment of the sugar juice; during first-carbon saturation, carbon dioxide is introduced to generate calcium carbonate precipitate to adsorb impurities; and second-carbon saturation further reduces the alkalinity of the sugar juice, removing residual calcium salts.

[0004] However, with the sugar industry's ever-increasing demands for product quality, the limitations of the carbonation purification process have become increasingly apparent. For example, in practice, although the pre-ashing process is considered a core element, requiring guaranteed sedimentation efficiency and sufficient reaction, the results are often unsatisfactory. Experiments have shown that adding flocculants to the pre-ash juice produces a certain amount of sediment; however, this sediment is not effectively separated and removed, instead entering the subsequent main ashing stage along with the sugar juice, undergoing a carbon saturation process until saturation is complete before sediment separation. This process arrangement has serious drawbacks. A large amount of stable agglomerated precipitate is repeatedly re-dissolved in subsequent processes, causing impurities to redisperse in the sugar juice. This not only interferes with key indicators such as ash addition and saturation parameters, affecting the stability of the entire sugar-making process and the consistency of product quality, but also significantly increases the difficulty of subsequent treatment. Furthermore, because more lime milk and carbon dioxide are required to reform precipitates for removal, production costs and energy consumption increase, and purification efficiency is significantly reduced.

[0005] The drawbacks of the carbonate purification process are more pronounced when using beet raw materials of relatively poor quality or with significant quality fluctuations. These raw materials contain more hydrophilic colloids produced by microbial degradation of sucrose, such as pectin, hemicellulose, dextran, and levulin. These colloids possess unique physicochemical properties that significantly influence the size and particle size distribution of calcium carbonate crystals during the saturation process. Hydrophilic colloids may adsorb onto the surface of calcium carbonate crystals, hindering normal crystal growth and aggregation, resulting in fine, dispersed calcium carbonate precipitates that are difficult to settle and filter. This, in turn, reduces the filtration performance and impurity removal efficiency of the sugar juice, leaving more impurities and affecting the quality of the final granulated sugar. Furthermore, it can trigger a series of serious production problems. For example, a significant increase in limestone usage leads to higher production costs; thickening filters and plate and frame filters operate under overload conditions, causing sediment to clog the filter media, slowing down the filtration speed, shortening equipment lifespan, and increasing equipment maintenance costs; a substantial increase in the calcium salt content of the secondary clarifier affects the purity and quality of the sugar juice, and excessive calcium salts may form scale during subsequent concentration and crystallization processes, affecting the normal operation of equipment and product quality; increased honey production results in raw material waste and decreased production efficiency; and the quality of the finished sugar declines, making it difficult to meet market demand and affecting the company's market competitiveness.

[0006] Currently, although the industry is exploring some improvement measures, most of them are local optimizations based on the existing carbonate process, failing to fundamentally solve core problems such as precipitate re-dissolution and low cleaning efficiency. For example, some companies have tried adjusting parameters such as the amount of ash added, temperature, and time in pre-ash and main ash processes, but the effects are limited, and the differences between different batches of raw materials make the adjustment of process parameters lack stability and universality.

[0007] In summary, existing beet sugar refining processes have many shortcomings and fail to meet the modern sugar industry's requirements for product quality and production efficiency. Therefore, developing a beet sugar refining device that can remove non-sugar sediments generated during pre-ashing is of significant practical importance. Summary of the Invention

[0008] This utility model provides a cleaning device for beet sugar production, which can remove non-sugar sediment generated during pre-ashing in advance, thereby avoiding the adverse effects of non-sugar sediment on subsequent processes and improving the quality of raw syrup.

[0009] To solve the above problems, the technical solution adopted by this utility model is: It includes a pre-ash box, a main ash box, a carbon saturation tank, a filter one, a carbon saturation tank two, and a filter two, which are connected in sequence; in addition, it also includes a gas dispersion box and a sedimentation tank. The gas dispersion box and the sedimentation tank are connected and combined to form a sedimentation device, and in the material flow sequence, the gas dispersion box is located upstream of the sedimentation tank.

[0010] One more specific technical solution among the above technical solutions may be: the gas dispersion box and the sedimentation tank are installed between the pre-ash box and the main ash box; wherein, the gas dispersion box is provided with a gas dispersion box inlet, a gas dispersion box outlet, and a gas dispersion port; the sedimentation tank is provided with a sedimentation tank inlet and a sedimentation tank outlet, and the gas dispersion box outlet is connected to the sedimentation tank inlet; the pre-ash box is provided with a pre-ash box outlet, and the pre-ash box outlet is connected to the gas dispersion box inlet; the main ash box is provided with a main ash box inlet, and the main ash box inlet is connected to the sedimentation tank outlet.

[0011] Another more specific technical solution could be: the gas dissipation box and the sedimentation tank are installed between the main ash box and the carbon saturation tank; wherein, the gas dissipation box is provided with a gas dissipation box inlet, a gas dissipation box outlet, and a gas dissipation port; the sedimentation tank is provided with a sedimentation tank inlet and a sedimentation tank outlet, and the gas dissipation box outlet is connected to the sedimentation tank inlet; the main ash box is provided with a main ash box outlet, and the main ash box outlet is connected to the gas dissipation box inlet; the carbon saturation tank is provided with a carbon saturation tank inlet, and the carbon saturation tank inlet is connected to the sedimentation tank outlet.

[0012] In the two technical solutions mentioned above, regarding the structure of the gas diffuser box, preferably, the middle section of the gas diffuser box is a cylindrical structure, and the top and bottom ends are both frustoconical structures. The gas diffuser port is installed at the top of the gas diffuser box, the liquid inlet of the gas diffuser box is installed at the upper end of the middle section of the gas diffuser box, and the liquid outlet of the gas diffuser box is installed at the bottom of the gas diffuser box.

[0013] Regarding the structure of the sedimentation tank, preferably, the sedimentation tank is divided into three sections: upper, middle, and lower. The upper section is cylindrical, the middle section is frustum-shaped, the upper end of the lower section is cylindrical, and the lower end is frustum-shaped. The large end of the frustum-shaped structure in the middle section is connected to the upper section, and the small end is connected to the lower section.

[0014] To improve sedimentation and separation efficiency, flocculants can be added during the sedimentation process of pre-lime or main lime. Regarding the addition of flocculants and their mixing method with pre-lime or main lime, Option 1 is as follows: A mixer is provided between the gas diffuser and the sedimentation tank. The mixer has a mixer inlet, a mixer outlet, and a flocculant inlet, and a stirrer is installed inside the mixer. The mixer inlet is connected to the outlet of the gas diffuser, and the mixer outlet is connected to the inlet of the sedimentation tank. Inside the upper section of the sedimentation tank, there is a distribution ring pipe that connects to the sedimentation tank inlet and a juice outlet ring pipe that connects to the sedimentation tank outlet. The distribution ring pipe has several openings; a central guide channel is provided below the perimeter of each opening, and a distribution baffle is provided below the bottom of the central guide channel.

[0015] Option 2: The sedimentation tank is equipped with a flocculant inlet at the top and a stirrer inside the sedimentation tank.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. This utility model can improve the quality of raw syrup: by setting up an aeration box and a sedimentation tank between the pre-ash box and the main ash box or between the main ash box and the carbon saturation tank, the pre-ash juice or main ash juice is first aerated in the aeration box and then enters the sedimentation tank for settling. The non-sugar sediment generated by the pre-ash or main ash treatment is removed in advance, avoiding these sediments from entering the subsequent process with the syrup, reducing the situation of impurities redispersing in the syrup, thereby improving the quality of raw syrup.

[0017] 2. This utility model can ensure the stability of the sugar-making process: by removing non-sugar sediments in advance, it prevents them from interfering with key indicators such as ash addition and saturation parameters, thus ensuring the stability of the entire sugar-making process and the consistency of product quality.

[0018] 3. This utility model can reduce the difficulty of subsequent processing: it reduces the problem of impurities redispersing due to repeated redissolution of precipitates in subsequent processes, thus reducing the difficulty of subsequent processing.

[0019] 4. This utility model can save production costs and energy: it avoids the need to consume more lime milk and carbon dioxide to remove impurities by reforming the sediment, thus reducing production costs and energy consumption.

[0020] 5. This utility model can improve cleaning efficiency: It effectively solves the core problems of precipitate re-dissolution and low cleaning efficiency in the existing carbonic acid cleaning process, thereby improving the cleaning efficiency.

[0021] 6. This utility model can adapt to raw materials of different qualities: For beet raw materials with relatively poor quality or large quality fluctuations, this device can reduce the obstruction of hydrophilic colloids in the raw materials to the growth and aggregation of calcium carbonate crystals during the saturation process, reduce the negative impact on the filtration performance and impurity removal efficiency of sugar juice, and avoid causing a series of serious production problems, such as increased limestone usage, overloaded operation of filtration equipment, affected purity and quality of sugar juice, increased honey production, and decreased quality of finished sugar.

[0022] 7. This utility model optimizes the sedimentation tank structure to facilitate sedimentation and separation: the sedimentation tank is designed in sections, with an upper cylindrical section, a middle frustum-shaped section, and a lower cylindrical section with a lower frustum-shaped section. The large end of the middle section connects to the upper section, and the small end connects to the lower section. This structure is conducive to the sedimentation and separation of sediments. The upper section of the sedimentation tank is equipped with a distribution ring pipe, a central guide channel, and a distribution baffle, which can make the liquid entering the sedimentation tank evenly distributed, further improving the sedimentation and separation effect.

[0023] 8. This utility model can enhance the flocculation effect: Option 1, a mixer is set between the gas dispersion box and the sedimentation tank. The mixer is equipped with a flocculant inlet and an agitator. The flocculant can be added and fully mixed before the pre-ash juice or main ash juice enters the sedimentation tank, thereby enhancing the flocculation effect; Option 2, a flocculant inlet is directly set at the top of the sedimentation tank, along with an agitator, so that the pre-ash juice or main ash juice is fully mixed with the added flocculant in the sedimentation tank by the agitator. The flocculation effect can be adjusted according to the actual situation to improve the separation efficiency of the sediment. Attached Figure Description

[0024] Figure 1 This is a flow chart of the existing carbonic acid purification process.

[0025] Figure 2 This is a schematic diagram of the structure of the present invention, in which the gas dispersion box and sedimentation tank are installed between the pre-ash box and the main ash box, and a mixer is set between the gas dispersion box and the sedimentation tank.

[0026] Figure 3 This is a schematic diagram of the structure of the present invention, in which the gas dispersion box and sedimentation tank are installed between the pre-ash box and the main ash box, and a flocculant inlet is provided at the top of the sedimentation tank and a stirrer is provided inside the sedimentation tank.

[0027] Figure 4 This is a schematic diagram of the structure of the present invention, in which a gas diffuser and a sedimentation tank are installed between the main ash box and a carbon saturation tank, and a mixer is set between the gas diffuser and the sedimentation tank.

[0028] Figure 5 This is a schematic diagram of the structure of the present invention, in which the gas dissipation box and sedimentation tank are installed between the main ash box and a carbon saturation tank, and a flocculant inlet is provided at the top of the sedimentation tank and a stirrer is provided inside the sedimentation tank.

[0029] Figure 6 This is a schematic diagram of the sedimentation tank structure in the preferred embodiment of this utility model.

[0030] Figure 7 According to the present invention Figure 2 and 3 The purification process flow chart.

[0031] Figure 8 According to the present invention Figure 4 and 5 The purification process flow chart.

[0032] Figures 2-6In the diagram, the following labels represent different parts of the ash tank: 1 – Pre-ash box, 1-1 – Pre-ash box outlet, 2 – Main ash box, 2-1 – Main ash box inlet, 2-2 – Main ash box outlet, 3 – Carbon saturation tank, 3-1 – Carbon saturation tank inlet, 4 – Aeration box, 4-1 – Aeration box inlet, 4-2 – Aeration box outlet, 4-3 – Aeration port, 5 – Sedimentation tank, 5-1 – Sedimentation tank inlet, 5-2 – Sedimentation tank outlet. 5-3 – Distribution ring pipe; 5-4 – Juice outlet ring pipe; 5-5 – Central guide channel; 5-6 – Distribution baffle; 5-7 – Flocculant inlet; 5-8 – Stirrer; 6 – Mixer; 6-1 – Mixer inlet; 6-2 – Mixer outlet; 6-3 – Flocculant inlet; 6-4 – Stirrer; 7 – Filter 1; 8 – Carbon dioxide saturation tank; 9 – Filter 2; 10 – Suction filter. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings: Option 1 like Figure 2 and Figure 3 The purification device for sugar beet production shown includes a pre-ash box 1, a gas dispersing box 4, a sedimentation tank 5, a main ash box 2, a primary carbon saturation tank 3, a primary filter 7, a secondary carbon saturation tank 8, and a secondary filter 9, which are connected in sequence. The gas dispersing box 4 has a gas dispersing box inlet 4-1, a gas dispersing box outlet 4-2, and a gas dispersing port 4-3. The sedimentation tank 5 has a sedimentation tank inlet 5-1 and a sedimentation tank outlet 5-2, with the gas dispersing box outlet 4-2 connected to the sedimentation tank inlet 5-1. The pre-ash box 1 has a pre-ash box outlet 1-1, which is connected to the gas dispersing box inlet 4-1. The main ash box 2 has a main ash box inlet 2-1, which is connected to the sedimentation tank outlet 5-2. In this technical solution, by setting up an aeration box 4 and a sedimentation tank 5 between the pre-ash box 1 and the main ash box 2, the pre-ash juice is first aerated in the aeration box 4 and then enters the sedimentation tank 5 for settling. This removes the non-sugar sediment generated during the pre-ash treatment in advance, preventing these sediments from entering the subsequent processes with the sugar juice and reducing the redispersibility of impurities in the sugar juice, thereby improving the quality of the raw syrup.

[0034] Option 2 like Figure 4 and Figure 5The purification device for sugar beet production shown includes a pre-ash box 1, a main ash box 2, a gas dissipation box 4, a sedimentation tank 5, a primary carbon saturation tank 3, a first filter 7, a second carbon saturation tank 8, and a second filter 9, which are connected in sequence. The gas dissipation box 4 has a gas dissipation box inlet 4-1, a gas dissipation box outlet 4-2, and a gas outlet 4-3. The sedimentation tank 5 has a sedimentation tank inlet 5-1 and a sedimentation tank outlet 5-2, with the gas dissipation box outlet 4-2 connected to the sedimentation tank inlet 5-1. The main ash box 2 has a main ash box outlet 2-2, which is connected to the gas dissipation box inlet 4-1. The primary carbon saturation tank 3 has a primary carbon saturation tank inlet 3-1, which is connected to the sedimentation tank outlet 5-2. In this technical solution, an aeration box 4 and a sedimentation tank 5 are set between the main ash box 2 and the carbon saturation tank 3. The pre-ash juice is first aerated in the aeration box 4 and then enters the sedimentation tank 5 for settling. The non-sugar sediment generated by the pre-ash treatment is removed in advance, avoiding these sediments from entering the subsequent process with the sugar juice. This reduces the situation where impurities are redispersed in the sugar juice, thereby improving the quality of the raw syrup.

[0035] In the two purification device schemes for beet sugar production described above, regarding the structure of the aeration box 4, preferably, the middle section of the aeration box 4 is cylindrical, and the top and bottom ends are both frustoconical. The aeration port 4-3 is installed at the top of the aeration box 4, the liquid inlet 4-1 is installed at the upper end of the middle section of the aeration box, and the liquid outlet 4-2 is installed at the bottom of the aeration box 4. The frustoconical structure at the top and bottom of the aeration box 4 facilitates the upward discharge of gas from the pre-lime solution and the downward discharge of remaining liquid into the next process.

[0036] Regarding the structure of sedimentation tank 5, preferably, sedimentation tank 5 is divided into three sections: upper, middle, and lower. The upper section has a cylindrical structure, the middle section has a frustum-shaped structure, and the upper end of the lower section has a cylindrical structure, while the lower end has a frustum-shaped structure. The larger end of the frustum-shaped structure in the middle section connects to the upper section, and the smaller end connects to the lower section. This structural design is more conducive to the sedimentation and separation of sediments within sedimentation tank 5, improving its sedimentation and separation efficiency and effect.

[0037] Preferably, to improve the sedimentation and separation effect, a flocculant can be added during the sedimentation of the pre-lime or main lime. Regarding the addition of the flocculant and its mixing method with the pre-lime or main lime, in one embodiment, it can be as follows: Figure 2 and Figure 4As shown, a mixer 6 is installed between the aeration box 4 and the sedimentation tank 5. The mixer 6 has a mixer inlet 6-1, a mixer outlet 6-2, and a flocculant inlet 6-3. An agitator 6-4 is installed inside the mixer 6. The mixer inlet 6-1 is connected to the aeration box outlet 4-2, and the mixer outlet 6-2 is connected to the sedimentation tank inlet 5-1. This design ensures that the pre-ash or main ash from the aeration box 4 and the added flocculant are thoroughly mixed in the mixer 6. The agitator 6-4 enhances the mixing effect, allowing the flocculant to fully contact the impurities in the pre-ash or main ash, forming larger flocs, which is beneficial for subsequent sedimentation and separation in the sedimentation tank 5, thus improving sedimentation efficiency. In this scheme, the structural diagram of the sedimentation tank 5 can be shown as follows. Figure 6 As shown, in the upper section inside the sedimentation tank 5, there is a distribution ring pipe 5-3 connected to the sedimentation tank inlet 5-1 and a juice outlet ring pipe 5-4 connected to the sedimentation tank outlet 5-2. The distribution ring pipe 5-3 has several openings, and a central guide channel 5-5 is provided below the perimeter of the openings. This channel can further guide the flow direction of the pre-ash juice or main ash juice, so that the pre-ash juice or main ash juice flows downward along a predetermined path, avoiding disorderly diffusion of the pre-ash juice or main ash juice in the sedimentation tank 5. This helps to form a stable water flow state and improve the treatment effect of the sedimentation tank 5. A distribution baffle 5-6 is provided below the bottom of the central guide channel 5-5, which can further adjust the flow rate and direction of the pre-ash juice or main ash juice, so that the pre-ash juice or main ash juice forms a more favorable hydraulic condition for sedimentation in the sedimentation tank 5, such as slowing down the water flow rate, prolonging the sedimentation time, and promoting better sedimentation of impurities. Overall, the above structural design can evenly distribute the pre-ash juice or main ash juice entering the sedimentation tank 5 to various areas of the sedimentation tank 5, avoiding the pre-ash juice or main ash juice from flowing into a certain part in a concentrated manner, making the distribution of pre-ash juice or main ash juice in the sedimentation tank 5 more uniform, which is conducive to improving sedimentation efficiency and ensuring the consistency of sedimentation effect.

[0038] Preferably, regarding the addition of the flocculant and its mixing method with the pre-lime or main lime, in another embodiment, it can be as follows: Figure 3 and Figure 5 As shown, a flocculant inlet 5-8 is provided at the top of the sedimentation tank 5, and a stirrer 5-8 is installed inside the sedimentation tank 5. Although this structural design is relatively simple, the stirrer 5-8 inside the sedimentation tank 5 can still mix the added flocculant with the pre-ash slurry or main ash slurry to a certain extent, promoting the formation of flocs and meeting basic sedimentation treatment requirements. For some applications where the sedimentation effect requirements are not particularly high, or where the treatment scale is small, this technical solution can be considered an economical and practical option.

[0039] Example 1 like Figure 6 The purification method for sugar production shown herein employs the method described in this utility model. Figure 2 The specific method for purification shown includes the following steps: The beet juice from the beet extractor enters the pre-ash tank 1, where lime slurry is added for pre-ash treatment. The pre-ash juice after pre-ash treatment first enters the aeration tank 4 for aeration treatment, and then enters the sedimentation tank 5 for sedimentation separation treatment. The clear juice obtained from sedimentation separation enters the next process. The mud juice from the sedimentation tank 5 is separated into mud and clear juice by the suction filter 10. The mud leaves the factory, while the clear juice is mixed with the clear juice from the sedimentation tank 5 and enters the main ash tank 2, where lime slurry is added for main ash treatment. The main ash juice from the main ash tank 2 enters the first carbon saturation tank 3, where CO2 is introduced for first carbon saturation treatment. The first carbon juice from the first carbon saturation tank 3 is filtered through filter 7, and the resulting first carbon clear juice enters the second carbon saturation tank 8, where CO2 is introduced for second carbon saturation treatment. The second carbon juice from the second carbon saturation tank 8 is filtered through filter 9 to obtain second carbon clear juice.

[0040] Example 2 like Figure 8 The purification method for sugar production shown herein employs the method described in this utility model. Figure 5 The specific method for purification shown includes the following steps: The beet juice from the beet extractor enters the pre-ash box 1, where lime slurry is added for pre-ash treatment. The pre-ash juice from the pre-ash treatment enters the main ash box 2, where lime slurry is added for main ash treatment. The main ash juice from the main ash box 2 first enters the aeration box 4 for aeration treatment, and then enters the sedimentation tank 5 for sedimentation separation treatment. The clear juice obtained from sedimentation separation enters the next process, while the mud juice from the sedimentation tank 5 is separated into mud and clear juice by the suction filter 10. The mud leaves the factory, while the clear juice is mixed with the clear juice from the sedimentation tank 5 and enters the first carbon saturation tank 3, where CO2 is introduced for first carbon saturation treatment. The first carbon juice from the first carbon saturation tank 3 is filtered through filter 7, and the resulting first carbon clear juice enters the second carbon saturation tank 8, where CO2 is introduced for second carbon saturation treatment. The second carbon juice from the second carbon saturation tank 8 is filtered through filter 9 to obtain second carbon clear juice.

[0041] Comparative example like Figure 1 As shown, the same batch of beet juice as in the example is fed into the pre-ash box 1, where lime slurry is added for pre-ash treatment. The pre-ash juice that comes out after pre-ash treatment enters the main ash box 2, where lime slurry is added for main ash treatment. The main ash juice that comes out of the main ash box 2 enters the first carbon saturation tank 3, where CO2 is introduced for first carbon saturation treatment. The first carbon juice that comes out of the first carbon saturation tank 3 is filtered through filter 7, and the resulting first carbon clear juice enters the second carbon saturation tank 8, where CO2 is introduced for second carbon saturation treatment. The second carbon juice that comes out of the second carbon saturation tank 8 is filtered through filter 9 to obtain second carbon clear juice.

[0042] To better demonstrate the effects of this utility model, the carbon dioxide-purified juice obtained from Examples 1, 2 and the comparative example was tested, and the test results are shown in Table 1 below.

[0043] To better demonstrate the effects of the present invention, the carbon-1 and carbon-2 clear juices obtained in Examples 1, 2 and the comparative example were tested, and the test results are shown in Table 1 below.

[0044] Table 1 .

[0045] Note: In the test items in Table 1 above, "dilute juice" usually refers to "one-carbon juice" mentioned in this invention, and "two-carbon clear juice" usually refers to "two-carbon clear juice" mentioned in this invention.

[0046] As can be seen from the test results in Table 1 above, the beet syrup made from the dicarbonate juice prepared in Examples 1 and 2 of this invention is of higher quality than that prepared in Comparative Example 1.

[0047] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A purification device for sugar beet production, comprising a pre-ash box, a main ash box, a primary carbon saturation tank, a first filter, a second carbon saturation tank, and a second filter, connected in sequence, characterized in that: It also includes a gas diffuser and a sedimentation tank, which are connected and combined to form a settling device, and the gas diffuser is located upstream of the sedimentation tank in the material flow sequence.

2. The purification device for beet sugar production according to claim 1, characterized in that: The gas dispersion box and the sedimentation tank are installed between the pre-ash box and the main ash box; wherein, the gas dispersion box is provided with a gas dispersion box inlet, a gas dispersion box outlet and a gas dispersion port, the sedimentation tank is provided with a sedimentation tank inlet and a sedimentation tank outlet, and the gas dispersion box outlet is connected to the sedimentation tank inlet; the pre-ash box is provided with a pre-ash box outlet, and the pre-ash box outlet is connected to the gas dispersion box inlet; the main ash box is provided with a main ash box inlet, and the main ash box inlet is connected to the sedimentation tank outlet.

3. The purification device for beet sugar production according to claim 1, characterized in that: The gas dissipation box and the sedimentation tank are installed between the main ash box and the carbon saturation tank; wherein, the gas dissipation box is provided with a gas dissipation box inlet, a gas dissipation box outlet and a gas dissipation port, the sedimentation tank is provided with a sedimentation tank inlet and a sedimentation tank outlet, and the gas dissipation box outlet is connected to the sedimentation tank inlet; the main ash box is provided with a main ash box outlet, and the main ash box outlet is connected to the gas dissipation box inlet; the carbon saturation tank is provided with a carbon saturation tank inlet, and the carbon saturation tank inlet is connected to the sedimentation tank outlet.

4. The purification device for beet sugar production according to claim 2 or 3, characterized in that: The middle section of the gas diffuser box is cylindrical, and the top and bottom ends are both frustoconical. The gas diffuser port is installed at the top of the gas diffuser box, the liquid inlet of the gas diffuser box is installed at the upper end of the middle section of the gas diffuser box, and the liquid outlet of the gas diffuser box is installed at the bottom of the gas diffuser box.

5. The purification device for beet sugar production according to claim 4, characterized in that: The sedimentation tank is divided into three sections: upper, middle, and lower. The upper section is cylindrical, and the middle section is frustum-shaped. The upper end of the lower section is cylindrical, and the lower end is frustum-shaped. The larger end of the frustum-shaped middle section connects to the upper section, and the smaller end connects to the lower section.

6. The purification device for beet sugar production according to claim 5, characterized in that: Inside the upper section of the sedimentation tank, there is a distribution ring pipe connected to the liquid inlet of the sedimentation tank and a juice outlet ring pipe connected to the liquid outlet of the sedimentation tank. The distribution ring pipe has several openings. A central guide channel is provided below the perimeter of the openings, and a distribution baffle is provided below the bottom of the central guide channel.

7. The purification device for beet sugar production according to claim 6, characterized in that: A mixer is provided between the gas diffuser and the sedimentation tank. The mixer has a mixer inlet, a mixer outlet, and a flocculant inlet. An agitator is provided inside the mixer. The mixer inlet is connected to the gas diffuser outlet, and the mixer outlet is connected to the sedimentation tank inlet.

8. The purification device for beet sugar production according to claim 5, characterized in that: The sedimentation tank is equipped with a flocculant inlet at the top and a stirrer inside the sedimentation tank.

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