CN212476784U - Device for accelerated convection of massecuite in crystallizing tank - Google Patents
Device for accelerated convection of massecuite in crystallizing tank Download PDFInfo
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- CN212476784U CN212476784U CN202021455143.9U CN202021455143U CN212476784U CN 212476784 U CN212476784 U CN 212476784U CN 202021455143 U CN202021455143 U CN 202021455143U CN 212476784 U CN212476784 U CN 212476784U
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Abstract
本实用新型属于工业制糖领域，具体涉及一种用于结晶罐糖膏加速对流的装置，其特征为，结晶罐内还设有环形气管，环形气管与加热体同心并水平设置在加热体的正下方，环形气管上部设有孔径为0.005‑1mm的微孔，沿环形气管的管路方向上设置的微孔数量密集度不低于2000个/m，环形气管设有与结晶罐外连通的支气管，不凝结气体排出管道连接气水分离器，所述支气管连接气水分离器的气体输出口。该装置通过回收利用加热体排出的不凝气体用于煮糖结晶罐糖膏强对流气体，既可搅拌糖膏，又可利用热能加热糖膏，节约了能量。当不凝气体不足时，可以补充处理后的空气对糖膏进行喷吹。
The utility model belongs to the field of industrial sugar production, and in particular relates to a device for accelerating convection of massecuite in a crystallizing tank. The utility model is characterized in that an annular gas pipe is also arranged in the crystallizing tank. Directly below, the upper part of the annular trachea is provided with micropores with a diameter of 0.005-1mm, the number of micropores set along the pipeline direction of the annular trachea is not less than 2000/m, and the annular trachea is provided with a connection to the outside of the crystallizing tank. The bronchus, the non-condensable gas discharge pipeline is connected to the gas-water separator, and the bronchus is connected to the gas output port of the gas-water separator. The device uses the non-condensable gas discharged from the heating body to be used for the strong convection gas of the massecuite in the sugar crystallization tank, which can not only stir the massecuite, but also heat the massecuite with thermal energy, thereby saving energy. When the non-condensable gas is insufficient, the massecuite can be sprayed with supplementary air.
Description
Technical Field
The utility model belongs to industry sugaring field, concretely relates to a device that is used for crystallizer massecuite to convect with higher speed.
Background
In the sugar production process, sugar boiling and crystallization are a crucial link in the process flow. A traditional sugar boiling mode adopts a natural circulation crystallizing tank, sugar liquor is continuously heated and concentrated in a crystallizing tank with vacuum, crystals are formed after a certain saturated concentration is reached (or fine sugar particles are added), liquid must keep convection in the boiling process, the convection speed is higher, the concentration is higher, the crystallization is accelerated, the boiling time is shorter, and the convection of the sugar liquor in the existing crystallizing tank is formed by depending on vacuum, gravity and heating temperature difference.
In recent years, with the progress of sugar manufacturing technology, under the condition that the heating temperature of a crystallization tank is limited, mechanical forced stirring is added in the crystallization tank to accelerate sugar solution convection, a propeller principle is adopted to push down sugar paste, and referring to fig. 3, the sugar paste is accelerated in convection by external force, but the mechanical forced stirring has many defects, such as high power consumption (each set of forced stirring is provided with a 55kw/75kw motor), vacuum leakage of a dynamic and static mechanical connection part, mechanical faults (large resistance of a stirring blade, deformation and bending, and heating of the motor), and other safe operation and maintenance problems, and influences the normal use of the crystallization tank. In addition, the heating body in the existing sugar crystallizing tank discharges non-condensing gas (ammonia gas as the main component) in the working process, the condensing gas has certain pressure (more than or equal to 0.006 mPa) and temperature (more than or equal to 90 ℃), and the heat energy is wasted when the condensing gas is extracted and discharged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device that is used for crystallizer massecuite convection current with higher speed to solve and use the high technical problem of the high maintenance cost of mechanical stirring power consumption in the current sugar crystallization process of boiling.
The technical proposal for realizing the purpose of the utility model is that,
the utility model provides a device for crystallizer massecuite convection with higher speed, including the heating member, be equipped with the noncondensable gas discharge pipe with the heating member intercommunication outside the crystallizer, different with prior art, still be equipped with annular trachea in the crystallizer, annular trachea and heating member concentric and the level setting is under the heating member, annular trachea upper portion is equipped with the micropore that the aperture is 0.005-1mm, the micropore quantity intensity that sets up on the tracheal pipeline direction of edge annular is not less than 2000/m, annular trachea is equipped with the bronchus with the crystallizer intercommunication outward, noncondensable gas discharge pipe connects the gas-water separator, the gas delivery outlet of gas-water separator is connected to the bronchus.
Furthermore, the device also comprises an air input pipeline, wherein a purification and sterilization device and a constant temperature heating device are arranged in the air pipeline along the air input direction, an air regulating valve is arranged on the air input pipeline, and the air input pipeline is communicated with the bronchus.
Furthermore, the distance between the annular air pipe and the heating body is 0-1000 mm.
Furthermore, 1-6 annular gas pipes with different diameters are arranged in the crystallizing tank.
Further, set up 2 annular trachea in the crystallizer, 2 annular trachea settings are on same horizontal plane, and 2 annular trachea's diameter is one-third and two-thirds of crystallizer internal diameter respectively, be equipped with the input governing valve in the bronchus.
Further, the micropores are taper micropores.
Further, the specification of the annular air pipe is DN15-DN 300.
When the device for the sugar mass accelerated convection of the crystallizing tank is used, the gas-water separator dries the non-condensable gas discharged by the heating body and then outputs the dry gas, the dry gas enters the annular gas pipe in the crystallizing tank and is discharged from the micropores on the wall of the annular gas pipe, the volume of the dry gas is continuously increased in the lifting process under the combined action of vacuum and self pressure at the upper part in the sugar boiling crystallizing tank, the sugar mass is driven to flow in extrusion and lifting, and the sugar mass is continuously stirred. When the non-condensing gas is insufficient, the annular air pipe can be mixed with input air, and the input air is firstly purified, sterilized and heated to the same temperature as the massecuite in the sugar boiling crystallizing tank. A plurality of annular air pipes with different diameters are arranged below the heating body, so that the action range of gas for accelerating the convection of massecuite is enlarged. The input regulating valve is arranged on the bronchus, which is favorable for accurately regulating the strength of convection of gas acceleration massecuite in each area. The micropore is set to be a taper hole, which is beneficial to preventing massecuite from entering the annular air pipe.
The device for accelerating the convection of the massecuite of the sugar boiling crystallizing tank is used for strong convection gas of the massecuite of the sugar boiling crystallizing tank by recycling the non-condensable gas discharged by the heating body, can be used for stirring the massecuite, can be used for heating the massecuite by using heat energy, does not waste the heat energy, accords with the food safety, and does not influence the quality of the massecuite. When the non-condensable gas is insufficient, the treated air can be supplemented to blow the massecuite. The use of the gas injection device utilizes the exhausted waste heat, thus saving energy.
The air consists of 78% nitrogen and 21% oxygen, 0.94% rare gas, 0.03% carbon dioxide, 0.03% water vapor, and impurities such as air. From the above composition of air it can be demonstrated that:
1. firstly, the air contains few impurities, and the impurities can be filtered and removed by adopting an air purification device, so that clean air can enter a sugar boiling tank;
2. the water content in the air is 0.03%, and the average water content in the air can be calculated according to the average air temperature of 25 ℃ and the average relative humidity of 80% in the Guangxi squeezing season: 80% × 20.356 × 1.185=0.019 kg/cubic meter, negligible;
3. after the air is purified, the air in a normal temperature state can be heated to more than 110 ℃ in an electric heating mode, so that the effects of disinfection and sterilization are achieved, and the food safety is ensured; keeping the air temperature the same as the massecuite temperature in the sugar boiling crystallizing tank to ensure input;
4. except nitrogen, oxygen, water vapor and carbon dioxide, the rest gases in the air belong to inert gases, and the quality of the massecuite is not influenced.
Because the effect that can also reach the energy saving simultaneously as the strong convection gas of massecuite of noncondensable gas in the steam of adoption, can preferentially use noncondensable gas in the scheme, not enough part air of resupplying again, with the mode of the mechanical stirring massecuite among the prior art, this technical scheme energy-conserving effect is obvious, uses gaseous jetting massecuite, promotes the massecuite convection current effect better.
It should be noted that, the most commonly used cylindrical crystallization tank in the field correspondingly adopts a cylindrical heating body, and the technical solutions of non-invasive property made by the skilled person according to the disclosure of the present invention for crystallization tanks of other shapes all belong to the present invention.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a crystallization tank according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a prior art sugar boiling crystallizer;
in the figure, 1, a crystallizing tank; 2. a heating body; 3. an annular air pipe; 3-1, bronchi; 3-10, inputting a regulating valve; 4. a gas-water separator; 5. an air regulating valve; 6. a purification and sterilization device; 7. a constant temperature heating device.
Detailed Description
The present invention will be described in detail with reference to examples.
Referring to fig. 1 to 3, the boiled sugar of the present embodiment is 55m3The crystallization tank (1) is provided with a crystallization tank,
a device for accelerating convection of massecuite in a crystallizing tank comprises a heating body 2, a noncondensable gas discharge pipe communicated with the heating body 2 is arranged outside the crystallizing tank 1, 2 annular air pipes 3 of DN76 are arranged in the crystallizing tank 1, the diameters of the 2 annular air pipes 3 are respectively one third and two thirds of the inner diameter of the crystallizing tank 1, the 2 annular air pipes 3 and the heating body 2 are concentric and horizontally arranged under the heating body 2, the diameters of the 2 annular air pipes are reasonably arranged to ensure that the annular air pipes are uniformly distributed in the crystallizing tank, the upper part of the annular air pipe 3 is provided with taper micropores with the aperture of 0.02mm, the reasonable arrangement of the pore diameter and the shape of the micropores is favorable for ensuring proper spray intensity and effectively preventing the massecuite from flowing into the annular air pipes, the number concentration of the taper micropores is 50000 per meter in the pipeline direction, the number of the micropores with high density is favorable for improving the uniformity of acting force for accelerating convection of the massecu, so that the convection effect of massecuite is better, 2 annular gas pipes 3 are respectively provided with a bronchus 3-1 communicated with the outside of the crystallizing tank 1, an input adjusting valve 3-10 is arranged in the bronchus 3-1, a non-condensable gas discharge pipeline is connected with a gas-water separator 4, the bronchus 3-1 is connected with a gas output port of the gas-water separator 4,
the branch air pipe 3-1 is also communicated with an air input pipeline, a purifying and sterilizing device 6 and a constant temperature heating device 7 are arranged in the air pipeline along the air input direction, an air regulating valve 5 is arranged on the air input pipeline,
the annular gas tube 3 is spaced from the heating body 2 by a distance of 250mm, which is the best distance for accelerating the convection of massecuite through the heating body 2.
When the device for accelerating convection of the massecuite in the crystallizing tank is used, the gas-water separator 4 performs gas-water separation and drying on input non-condensable gas and outputs dry gas, the dry gas enters the annular gas pipe 3 and is discharged from the taper micropores, and under the combined action of the self pressure of the gas and the vacuum on the upper part of the crystallizing tank 1, the volume of the gas is continuously increased in the rising process, the massecuite is driven to flow in extrusion and lifting, and the massecuite is continuously stirred. The boiling intensity of the massecuite and the vacuum degree in the crystallization tank 1 can be observed through a sight glass to judge that the gas amount in the tank is proper, and when the non-condensed gas is not enough, the air regulating valve 5 can be opened simultaneously, and proper amount of treated air is mixed and input into the bronchus 3-1 to ensure the boiling intensity of the massecuite. The input regulating valve 3-10 in the bronchus 3-1 can be regulated to respectively regulate the boiling degree of the massecuite at the center and the periphery in the crystallizing tank 1, so as to improve the crystallization effect of the massecuite and be beneficial to improving the product quality. The device replaces mechanical stirring, can effectively improve the maintainability of the sugar crystallizing tank, has better effect of accelerating the convection of massecuite and has obvious effect of saving energy. With one 55m3For example, the power distribution machine of the gas strong convection device of the crystallization tank is about 3-5 kw, which is 50kw less than that of the forced stirring 55kw motor, and the power consumption is 50 every day60 percent x 20 hours x 0.65 yuan/degree =390 yuan, the squeezing season is about 39000 yuan per 100 days, and the electricity-saving effect is obvious. The device can replace a forced stirring device, reduce the power consumption, has remarkable energy-saving effect and considerable economic benefit, and is an energy-saving reconstruction project with less investment and quick effect for sugar manufacturing enterprises.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021455143.9U CN212476784U (en) | 2020-07-22 | 2020-07-22 | Device for accelerated convection of massecuite in crystallizing tank |
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| CN202021455143.9U CN212476784U (en) | 2020-07-22 | 2020-07-22 | Device for accelerated convection of massecuite in crystallizing tank |
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| CN212476784U true CN212476784U (en) | 2021-02-05 |
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| CN202021455143.9U Expired - Fee Related CN212476784U (en) | 2020-07-22 | 2020-07-22 | Device for accelerated convection of massecuite in crystallizing tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733299A (en) * | 2020-07-22 | 2020-10-02 | 广西飞鹏节能环保科技有限公司 | Apparatus and method for accelerated convection of massecuite in crystallization tank |
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2020
- 2020-07-22 CN CN202021455143.9U patent/CN212476784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733299A (en) * | 2020-07-22 | 2020-10-02 | 广西飞鹏节能环保科技有限公司 | Apparatus and method for accelerated convection of massecuite in crystallization tank |
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Granted publication date: 20210205 |