Optimized lime slaking system

Abstract

The utility model discloses an optimized lime slaking system, which belongs to the technical field of sugar manufacturing equipment and comprises a lime powder storage tank, at least two spiral conveying grooves, a slaking barrel, a lime milk storage barrel A, a lime milk storage barrel B and at least two lime emulsifying pumps. Lime powder falling from the lime powder storage tank is conveyed to the digestion barrel through the spiral conveying groove. The digestion barrel is connected with a lime milk storage barrel A through at least two overflow conveying pipes, and the lime milk storage barrel A is connected with a lime milk storage barrel B through a first overflow pipe. Lime in the lime milk storage barrel A is pumped by the lime emulsification pump, is emulsified and then is conveyed to the lime milk storage barrel B; lime is emulsified through the lime emulsifying pump, and a conveying line between the lime powder storage tank and the sterilizing barrel and a conveying line between the lime milk storage barrels are added, so that the problem of poor quality of lime milk is avoided, and the problem of shutdown maintenance risk caused by single lime powder and lime milk conveying lines is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sugar making equipment, in particular to an optimized lime smelting system. Background Art

[0002] In a sugar mill, the lime milk disinfection system is a key component, which provides the sugar mill with stable, high-quality lime milk, ensuring good sugarcane juice purification effect, thereby improving the purity and quality of sugar.

[0003] Chinese patent CN 214881150 U discloses a lime smelting system. Multiple lime milk dissolution tanks are arranged in series, and the hydrolyzed lime water is discharged through overflow between adjacent tanks. This prolongs the hydrolysis time of the lime milk in each tank, achieving the effect of fully hydrolyzing the lime raw material. At the same time, the concentration of the output emulsion is ensured to be stable. After reacting with the neutralizing juice, the pH value of the neutralizing juice can be easily controlled, reducing the proportion of uncontrollable post-reactions in the rapid settler.

[0004] Chinese patent CN 209946727 U discloses an intelligent control device for sugar lime emulsification, comprising a screw conveyor, a lime powder storage tank, and a slurry tank. The inlet of the screw conveyor is connected to the lower outlet of the lime powder storage tank, the outlet of the screw conveyor is connected to the top of the slurry tank, the bottom outlet of the slurry tank is connected to the inlet of the secondary reaction tank via a pipeline, the bottom outlet of the secondary reaction tank is connected to a feed pump via a pipeline, the feed pump is connected to the top inlet of the tertiary reaction tank via a pipeline, the bottom outlet of the tertiary reaction tank is connected to a delivery pump via a pipeline, and the delivery pump is connected to the pipeline to output lime milk. This device automates the entire emulsification process, achieving unmanned operation, reducing labor costs and improving production efficiency.

[0005] However, none of the above structures use an emulsifying pump to emulsify the lime milk, resulting in poor purging and dissolving effects. Consequently, these structures are prone to poor lime milk quality. Furthermore, the conveying lines between the lime powder storage tank and the purging and dissolving tank, as well as between the lime milk storage tanks, are single lines. Failure of this single line requires downtime for maintenance, which means purging and dissolving are halted, significantly impacting production. First, this increases the difficulty of production operations. Second, during maintenance, after purging has been suspended for a long time, the lime milk has insufficient time to be purged again when it is re-purged, resulting in poor lime milk quality. This impacts the clarification effect of the clarification stage, and consequently, product quality. Therefore, it is necessary to optimize and improve the existing technology. Utility Model Content

[0006] The utility model proposes an optimized lime smelting system, which emulsifies lime through a lime emulsifying pump, and adds a conveying line between a lime powder storage tank and a smelting barrel, as well as a conveying line between lime milk storage barrels, so as to solve the problem of poor quality of lime milk produced by the existing lime smelting system and the risk of shutdown for maintenance due to the single conveying line of lime powder and lime milk.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0008] An optimized lime smelting system comprising:

[0009] The lime powder storage tank is installed on the support frame with its discharge port facing downward;

[0010] At least two spiral conveying troughs, the feed ends of the spiral conveying troughs being connected to the discharge port of the lime powder storage tank;

[0011] A disinfection barrel is located directly below the discharge ends of the at least two spiral conveying troughs, and the upper side of the disinfection barrel is connected to at least two overflow conveying pipes;

[0012] A lime milk storage tank A, the lower portion of which is connected to at least two of the overflow delivery pipes, and the upper portion of which is connected to a first overflow pipe;

[0013] a lime milk storage tank B, the lower side of which is connected to the first overflow pipe;

[0014] At least two lime emulsification pumps, wherein the feed port of the lime emulsification pump is connected to the lime milk storage tank A through a first pipeline, and the discharge port of the lime emulsification pump is connected to the lime milk storage tank B through a second pipeline.

[0015] Furthermore, it also includes a lime milk storage barrel C and a lime milk storage barrel D; the upper side of the lime milk storage barrel B is connected to a second overflow pipe, and the lower side of the lime milk storage barrel C is connected to the second overflow pipe; the upper side of the lime milk storage barrel C is connected to a third overflow pipe, the lower side of the lime milk storage barrel D is connected to the third overflow pipe, and the upper side of the lime milk storage barrel D is connected to a discharge pipe.

[0016] Furthermore, the decontamination tank, lime milk storage tank A, lime milk storage tank B, lime milk storage tank C and lime milk storage tank D are all provided with stirring devices.

[0017] Furthermore, a water inlet pipe is provided on the top of the disinfection barrel.

[0018] Furthermore, a lime milk concentration sensor is provided in the lime milk storage barrel B, a hot water pipe is connected to the upper part of the lime milk storage barrel B, a solenoid valve is provided on the hot water pipe, and both the lime milk concentration sensor and the solenoid valve are connected to a controller.

[0019] Furthermore, the number of the lime emulsification pumps is three.

[0020] Furthermore, the pump flow rate of the emulsification pump is 20-30m 3 / h, with a power of 40-50kW.

[0021] Furthermore, the diameter of the overflow delivery pipe is 150-250 mm.

[0022] Furthermore, the spiral conveying troughs are arranged horizontally, and there are two of them.

[0023] Furthermore, a fixing frame for supporting the spiral conveying trough is provided above the disinfection barrel.

[0024] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0025] 1. The present invention uses a lime emulsification pump to emulsify lime, thus avoiding the problem of poor quality of lime milk. The lime emulsification pump is different from a conventional material conveying pump. The lime emulsification pump mixes and emulsifies solid particles such as lime with liquid to form a uniform emulsion. Through its special impeller structure and working principle, it can fully disperse lime and other materials in the liquid, break up particle agglomeration, and improve the mixing effect. Conventional material conveying pumps mainly promote the flow of liquid by generating a pressure difference, transporting liquid or material from one place to another. Therefore, the present application uses a lime emulsification pump to emulsify lime, which can effectively improve the quality of lime milk.

[0026] 2. This utility model adds additional conveying lines between the lime powder storage tank and the smelting tank, as well as between the lime milk storage tanks, eliminating the risk of downtime for maintenance due to a single lime powder and lime milk conveying line. When lime milk production efficiency needs to be improved, all conveying lines can be opened simultaneously to meet the lime smelting rate requirements during peak production periods. When lime milk production efficiency is not needed, some conveying lines can be opened, with the remaining lines serving as backup. In the event of a failure, a conveying line can be immediately replaced to ensure normal lime milk production.

[0027] 3. The utility model is provided with a lime milk concentration sensor and a hot water pipe in the lime milk storage barrel B. During the production process, when the lime milk concentration sensor senses that the lime milk in the lime milk storage barrel B is too concentrated, it generates a feedback signal and sends it to the controller. The controller controls the solenoid valve to open, and the hot water pipe adds hot water into the lime milk storage barrel B to adjust the lime milk concentration. When the lime milk concentration sensor senses that the lime milk concentration reaches the set value, the controller controls the solenoid valve to close to stabilize the lime milk concentration.

[0028] 4. The horizontal arrangement of the spiral conveyor trough in this utility model prevents lime powder from easily entering the trough's bearings, potentially damaging or jamming them. Existing lime smelting systems typically have lime powder conveying structures arranged at an angle, with the feed end lower and the discharge end higher. As lime powder falls along the conveyor structure, some of it can enter the bearings. This utility model employs a horizontal conveyor system to avoid this problem.

[0029] 5. This utility model is equipped with four lime milk storage tanks. An overflow pipe is installed between two adjacent lime milk storage tanks. The lime milk flows out from the upper part of the previous storage tank and flows into the lower part of the next storage tank. This ensures that the lime milk is mixed more evenly and increases the residence time of the lime milk. Combined with multi-stage storage and transportation, it can further improve the quality of the lime milk. This utility model is flexible and controllable, ensuring the stable quality of the lime milk. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the plan layout diagram of the lime smelting system proposed in this utility model;

[0031] Figure 2 This is a schematic diagram of the installation of the spiral conveyor trough proposed in the present utility model;

[0032] Among them, the markings in the attached figure are: 1-lime powder storage tank, 2-spiral conveying trough, 3-disinfection barrel, 4-overflow conveying pipe, 5-lime milk storage barrel A, 6-first overflow pipe, 7-lime milk storage barrel B, 8-second overflow pipe, 9-lime milk storage barrel C, 10-third overflow pipe, 11-lime milk storage barrel D, 12-discharge pipe, 13-lime emulsification pump, 14-first pipeline, 15-second pipeline, 16-hot water pipe, 17-support frame, 18-fixed frame, 19-emulsification room. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example

[0035] like Figure 1-2 As shown, an optimized lime smelting system includes a lime powder storage tank 1, at least two spiral conveying troughs 2, a smelting tank 3, lime milk storage tanks A5, B7, C9, and D11, and at least two lime emulsification pumps 13. The smelting tank 3, the four lime milk storage tanks, and the lime emulsification pumps 13 are all installed in the emulsification room 19, and the lime powder storage tank 1 is set outside the emulsification room 19. The pump flow rate of the emulsification pump is 20-30m 3 / h, with a power of 40-50kW.

[0036] In this embodiment, there are two spiral conveying troughs 2 and three lime emulsification pumps 13, model HEX3-220, manufactured by Ningbo Ouming Machinery Co., Ltd., with a pump flow rate of 25m 3 / h, power 45kW, speed 2900r / min, equipped with 45kw three-phase asynchronous variable frequency speed regulating motor.

[0037] The lime powder storage tank 1 is mounted on a support frame 17, with its discharge port facing downward. The feed end of the spiral conveying trough 2 receives the discharge port of the lime powder storage tank 1. The smelting barrel 3 is located directly below the discharge ends of the two spiral conveying troughs 2. A fixing frame 18 for supporting the spiral conveying trough 2 is provided above the smelting barrel 3, and the spiral conveying trough 2 is arranged horizontally. The spiral conveying trough 2 is arranged horizontally to avoid the situation where the bearings of the spiral conveying trough 2 are damaged or stuck due to the lime powder easily entering the bearings. In the existing lime smelting system, the lime powder conveying structure is generally tilted, with the feed end being lower and the discharge end being higher. When the lime powder falls along the conveying structure, some of the lime powder will enter the bearings. The utility model adopts a method of conveying lime powder in a horizontal direction to avoid this problem.

[0038] The top of the quenching and quenching barrel 3 is equipped with a water inlet pipe. At least two overflow pipes 4 are connected to the upper side of the quenching and quenching barrel 3. The overflow pipes 4 have a diameter of 150-250 mm. In this embodiment, there are two overflow pipes 4, each with a diameter of 200 mm. The lime mixture produced by the quenching and quenching barrel 3 enters the lime milk storage tank A5 through the overflow pipes 4.

[0039] The lower side of lime milk storage tank A5 is connected to two overflow pipes 4, and the upper side of lime milk storage tank A5 is connected to a first overflow pipe 6. The lower side of lime milk storage tank B7 is connected to the first overflow pipe 6. The upper side of lime milk storage tank B7 is connected to a second overflow pipe 8, and the lower side of lime milk storage tank C9 is connected to the second overflow pipe 8. The upper side of lime milk storage tank C9 is connected to a third overflow pipe 10, and the lower side of lime milk storage tank D11 is connected to the third overflow pipe 10. The upper side of lime milk storage tank D11 is connected to a discharge pipe 12. Stirring devices are installed in the decontamination tank 3, lime milk storage tanks A5, B7, C9, and D11. The resulting lime milk that meets the requirements is transported to the next process via the discharge pipe 12.

[0040] The utility model is provided with four lime milk storage barrels, and an overflow pipe is provided between two adjacent lime milk storage barrels. The lime milk flows out from the upper part of the front lime milk storage barrel and flows into the lower part of the rear lime milk storage barrel, so that the lime milk is mixed more evenly and the residence time of the lime milk is increased. Combined with multi-stage storage and transportation, the quality of the lime milk can be further improved.

[0041] The feed port of the lime emulsification pump 13 is connected to the lime milk storage tank A5 via a first pipe 14, and the discharge port of the lime emulsification pump 13 is connected to the lime milk storage tank B7 via a second pipe 15. The lime emulsification pump 13 extracts lime from the lime milk storage tank A5, and after emulsification, it is transported to the lime milk storage tank B7. The present invention uses the lime emulsification pump 13 to emulsify the lime, avoiding the problem of poor quality of the lime milk. The lime emulsification pump 13 is different from conventional material conveying pumps. The lime emulsification pump 13 mixes and emulsifies solid particles such as lime with liquid to form a uniform emulsion. Its special impeller structure and working principle can fully disperse materials such as lime in the liquid, break up particle agglomeration, and improve the mixing effect. Conventional material conveying pumps mainly promote the flow of liquid by generating a pressure difference, transporting liquid or material from one place to another. Therefore, the present application uses the lime emulsification pump 13 to emulsify the lime, which can effectively improve the quality of the lime milk.

[0042] In addition, a lime milk concentration sensor is installed in the lime milk storage tank B7. A hot water pipe 16 is connected to the top of the tank, which is equipped with a solenoid valve. Both the lime milk concentration sensor and the solenoid valve are connected to a controller. During production, when the lime milk concentration sensor detects that the lime milk in tank B7 is too concentrated, a feedback signal is generated and sent to the controller. The controller opens the solenoid valve, and hot water pipe 16 adds hot water to the tank B7 to adjust the lime milk concentration. When the lime milk concentration sensor detects that the lime milk concentration has reached the set value, the controller closes the solenoid valve to stabilize the lime milk concentration. This automated control reduces operator workload and allows for immediate adjustment of the lime milk concentration, ensuring lime milk quality.

[0043] This utility model adds a conveying line between the lime powder storage tank 1 and the smelting tank 3, as well as a conveying line between the lime milk storage tanks, thus avoiding the risk of downtime for maintenance caused by a single conveying line for lime powder and lime milk. When lime milk production efficiency needs to be improved, all conveying lines can be activated simultaneously to meet the lime smelting rate requirements during peak production periods. When lime milk production efficiency is not required, some conveying lines can be activated, with the remaining lines serving as backup. In the event of a failure, a conveying line can be immediately replaced to ensure normal lime milk production.

[0044] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. An optimized lime smelting system, characterized in that: include: The lime powder storage tank is installed on the support frame with its discharge port facing downward; At least two spiral conveying troughs, the feed ends of the spiral conveying troughs being connected to the discharge port of the lime powder storage tank; A disinfection barrel is located directly below the discharge ends of the at least two spiral conveying troughs, and the upper side of the disinfection barrel is connected to at least two overflow conveying pipes; A lime milk storage tank A, the lower portion of which is connected to at least two of the overflow delivery pipes, and the upper portion of which is connected to a first overflow pipe; a lime milk storage tank B, the lower side of which is connected to the first overflow pipe; At least two lime emulsification pumps, wherein the feed port of the lime emulsification pump is connected to the lime milk storage tank A through a first pipeline, and the discharge port of the lime emulsification pump is connected to the lime milk storage tank B through a second pipeline.

2. An optimized lime smelting system according to claim 1, characterized in that: It also includes a lime milk storage barrel C and a lime milk storage barrel D; the upper side of the lime milk storage barrel B is connected to a second overflow pipe, and the lower side of the lime milk storage barrel C is connected to the second overflow pipe; the upper side of the lime milk storage barrel C is connected to a third overflow pipe, and the lower side of the lime milk storage barrel D is connected to the third overflow pipe, and the upper side of the lime milk storage barrel D is connected to a discharge pipe.

3. An optimized lime smelting system according to claim 2, characterized in that: The desiccant, lime milk storage tank A, lime milk storage tank B, lime milk storage tank C and lime milk storage tank D are all provided with stirring devices.

4. An optimized lime smelting system according to claim 1, characterized in that: A water inlet pipe is provided on the top of the disinfection barrel.

5. An optimized lime smelting system according to claim 1, characterized in that: A lime milk concentration sensor is provided in the lime milk storage barrel B. A hot water pipe is connected to the upper portion of the lime milk storage barrel B. A solenoid valve is provided on the hot water pipe. Both the lime milk concentration sensor and the solenoid valve are connected to a controller.

6. An optimized lime smelting system according to claim 2, characterized in that: The number of the lime emulsification pumps is three.

7. An optimized lime smelting system according to claim 6, characterized in that: The pump flow rate of the emulsification pump is 20-30m 3 / h, with a power of 40-50kW.

8. An optimized lime smelting system according to claim 1, characterized in that: The diameter of the overflow conveying pipe is 150-250 mm.

9. An optimized lime smelting system according to claim 1, characterized in that: The spiral conveying troughs are arranged horizontally, and there are two of them.

10. An optimized lime smelting system according to claim 1, characterized in that: A fixing frame for supporting the spiral conveying trough is provided above the disinfection barrel.

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