Stirring system of vertical crystallization assisting machine

Abstract

The utility model discloses a vertical assistant crystallization machine stirring system which comprises an assistant crystallization machine tank body, a plurality of control chambers are arranged in the assistant crystallization machine tank body, a stirring shaft is arranged in each control chamber, a plurality of stirring blades are arranged on the stirring shaft, a stirring motor is arranged at the upper end, penetrating through the control chambers, of the stirring shaft, and a plurality of stirring blades are arranged on the stirring motor. A massecuite output port is formed in the bottom of each control chamber, a massecuite feeding port is formed in the upper end of the crystallization assisting machine tank body, and the outer wall of the crystallization assisting machine tank body is spirally sleeved with a cooling water sleeve assembly. The cooling water pipe is provided with the flow meter and the thermometer to adjust the temperature of the control chamber, and the stirring shaft and the stirring blades in the control chamber are combined to improve the heat and mass transfer efficiency of massecuite, so that the massecuite crystallization assisting device adapts to the characteristics of high-viscosity massecuite, reduces the overweight stirring load and improves the crystallization assisting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal-aiding machines, in particular to a stirring system of a vertical crystal-aiding machine. Background Art

[0002] A crystal-aiding machine is a mechanical device used for cooling and crystallizing sugar paste. At the end of the sugar paste boiling process, the sugar paste has low purity, high concentration, high viscosity, poor fluidity, and an extremely slow crystallization rate. In order to improve the sugar recovery rate, the sugar paste needs to be poured into the crystal-aiding machine, and by controlling the temperature inside the crystal-aiding machine, during the gradual cooling process of the sugar paste, more sugar is further precipitated, enabling the sugar paste to crystallize quickly and improving the crystallization efficiency of the sugar paste.

[0003] When the temperature of the C molasses for sugar discharging is 65 - 68°C and it cools naturally, the temperature of the sugar paste can only drop to 50 - 55°C. At this time, the supersaturation of the sugar paste mother liquor is above 1.18, the molasses purity is relatively high, and the sugar precipitation rate is low. Research shows that when the crystal-aiding sugar paste cools down to 40°C, the supersaturation of the mother liquor can reach above 1.2, and the sucrose precipitation rate is relatively high. Therefore, the lower the temperature, the more sucrose is precipitated. Practice has proved that the optimal cooling rate of the final sugar paste in a cane sugar factory is 0.8 - 1.5°C / h. Since the lower the temperature, the more sucrose is precipitated, but it should also be noted that the lower the temperature, the greater the viscosity of the sugar paste and the greater the resistance to sucrose crystallization. When the temperature drops to a certain extent, the crystallization rate is slow and the crystal-aiding effect is poor. At the same time, when the viscosity is relatively large, the stirring load is too heavy, affecting the safety of the equipment.

[0004] How to effectively control the temperature and crystallization effect inside the crystal-aiding machine to enable the sugar paste inside the crystal-aiding machine to crystallize quickly and efficiently and reduce the stirring load has become an urgent problem for many manufacturers. Content of the Utility Model

[0005] In order to solve the problems existing in the prior art, the utility model provides a stirring system of a vertical crystal-aiding machine. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stirring system of a vertical crystal-aiding machine includes a crystal-aiding machine tank body. A plurality of control chambers are arranged inside the crystal-aiding machine tank body. A stirring shaft is arranged in each control chamber. A plurality of stirring blades are arranged on the stirring shaft. A stirring motor is arranged at the upper end of the stirring shaft penetrating through the control chamber. A sugar paste output port is arranged at the bottom of each control chamber. A sugar paste feeding port is arranged at the upper end of the crystal-aiding machine tank body. A cooling water sleeve assembly is spirally sleeved on the outer wall of the crystal-aiding machine tank body.

[0007] Preferably, a temperature sensor is arranged in each control chamber, and a display is arranged on the outer wall of the crystal-aiding machine tank body. Each temperature sensor is electrically connected to the display.

[0008] Preferably, the cooling water jacket assembly includes a cooling water pipe, a flow meter, a thermometer, and a control valve. A plurality of thermometers, flow meters, and control valves are sequentially arranged on the cooling water pipe.

[0009] Preferably, a thermometer, a flow meter, and a control valve are provided at each node of the cooling water pipe in each control room.

[0010] Preferably, a pumping pump is provided at the bottom of the mother liquor crystallizer tank and at the bottom of one of the control rooms. The pumping pump is connected to a material discharge port provided at the bottom of the mother liquor crystallizer tank.

[0011] Preferably, the number of the control rooms is set to four.

[0012] In summary, since the present utility model adopts the above technical solutions, the present utility model has the following technical effects:

[0013] 1. By setting four control rooms and arranging a cooling water pipe outside the control rooms, the present utility model controls the residence time and temperature of the sugar paste in each control room by regulating the temperature of the cooling water. Through four different control temperatures, the crystal growth and precipitation efficiency are improved. Through four different control temperatures and an automated control of the stirring process, the interference of human factors is reduced. The design of the stirring blades improves the uniformity of stirring.

[0014] 2. By arranging a flow meter and a thermometer on the cooling water pipe to adjust the temperature of the control room, and combining the stirring shaft and stirring blades in the control room, the present utility model improves the heat and mass transfer efficiency of the sugar paste, thereby adapting to the characteristics of high-viscosity sugar paste, reducing the overloading of the stirring load, and improving the mother liquor crystallization effect. The design of the control room of the mother liquor crystallizer tank can be cleaned and maintained without stopping the machine, reducing the production interruption time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a vertical mother liquor crystallizer stirring system of the present utility model;

[0016] Figure 2 is a schematic diagram of removing the cooling water jacket of a vertical mother liquor crystallizer stirring system of the present utility model.

[0017] Figure 3 is another schematic diagram of removing the cooling water jacket of a vertical mother liquor crystallizer stirring system of the present utility model.

[0018] In the attached drawings, 1 is the tank body of the crystal-aiding machine; 2 is the control room; 201 is the first control room; 202 is the second control room; 203 is the third control room; 204 is the fourth control room; 205 is the temperature sensor; 2051 is the first temperature sensor; 2052 is the second temperature sensor; 2053 is the third temperature sensor; 2054 is the fourth temperature sensor; 206 is the display; 3 is the stirring shaft; 301 is the first stirring shaft; 302 is the second stirring shaft; 303 is the third stirring shaft; 304 is the fourth stirring shaft; 4 is the stirring blade; 401 is the first stirring blade; 402 is the second stirring blade; 403 is the third stirring blade; 404 is the fourth stirring blade; 5 is the stirring motor; 501 is the first stirring motor; 502 is the second stirring motor; 503 is the third stirring motor; 504 is the fourth stirring motor; 6 is the molasses outlet; 601 is the first molasses outlet; 602 is the second molasses outlet; 603 is the third molasses outlet; 604 is the fourth molasses outlet; 7 is the molasses inlet; 8 is the pumping pump; 9 is the material outlet; 10 is the cooling water sleeve assembly; 101 is the cooling water pipe; 102 is the flowmeter; 103 is the thermometer; 104 is the control valve; 105 is the water collecting tower. Detailed implementation mode

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following preferred embodiments are given with reference to the attached drawings for further detailed description of the present utility model. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the present utility model, and these aspects of the present utility model can be realized even without these specific details.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] The present utility model provides a vertical crystal-aiding machine stirring system, as Figures 1 - 3As shown in the figure, it includes a crystal growth assisting machine tank body 1. Inside the crystal growth assisting machine tank body 1, multiple control rooms 2 are arranged, which are successively the first control room 201, the second control room 202, the third control room 203, and the fourth control room 204 from top to bottom. Inside each control room 2, a stirring shaft 3 is arranged. Inside the first control room 201, a first stirring shaft 301 is arranged. Inside the second control room 202, a second stirring shaft 302 is arranged. Inside the third control room 203, a third stirring shaft 303 is arranged. Inside the fourth control room 204, a fourth stirring shaft 304 is arranged. Multiple stirring blades 4 are arranged on the stirring shaft 3, that is, a first stirring blade 401 is arranged on the first stirring shaft 301, a second stirring blade 402 is arranged on the second stirring shaft 302, a third stirring blade 403 is arranged on the third stirring shaft 303, and a fourth stirring blade 404 is arranged on the fourth stirring shaft 304. A stirring motor 5 is arranged at the upper end of the stirring shaft 3 penetrating through the control room 2, that is, a first stirring motor 501 is arranged at the upper end of the first stirring shaft 301 penetrating through the first control room 201, a second stirring motor 502 is arranged at the upper end of the second stirring shaft 302 penetrating through the second control room 202, a third stirring motor 503 is arranged at the upper end of the third stirring shaft 303 penetrating through the third control room 203, and a fourth stirring motor 504 is arranged at the upper end of the fourth stirring shaft 304 penetrating through the fourth control room 204; at the bottom of each control room 2, a sugar paste outlet 6 is arranged, that is, a first sugar paste outlet 601 is arranged at the bottom of the first control room 201, a second sugar paste outlet 602 is arranged at the bottom of the second control room 202, a third sugar paste outlet 603 is arranged at the bottom of the third control room 203, and a fourth sugar paste outlet 604 is arranged at the bottom of the fourth control room 204. The fourth sugar paste outlet 604 is connected to a pumping pump 8. At the upper end of the crystal growth assisting machine tank body 1, a sugar paste feeding port 7 is arranged. The outer wall of the crystal growth assisting machine tank body 1 is spirally sleeved with a cooling water sleeve assembly 10. Inside each control room 2, a temperature sensor 205 is arranged, that is, a first temperature sensor 2051 is arranged inside the first control room 201, a second temperature sensor 2052 is arranged inside the second control room 202, a third temperature sensor 2053 is arranged inside the third control room 203, and a fourth temperature sensor 2054 is arranged inside the fourth control room 204. A display 206 is arranged on the outer wall of the crystal growth assisting machine tank body 1. The first temperature sensor 2051, the second temperature sensor 2052, the third temperature sensor 2053, the fourth temperature sensor 2054, and the display 206 are electrically connected. The temperature inside each control room 2 is displayed through the display 206, and then the stirring speed of the stirring shaft 3 of the stirring motor 5 inside each control room 2 is controlled through the control system in combination with the temperature change. The control system sets the temperature change range of each control room 2, so as to control the residence time and residence temperature of the sugar paste.

[0022] Furthermore, the cooling water jacket assembly 10 includes a cooling water pipe 101, a flowmeter 102, a thermometer 103, and a control valve 104. A plurality of thermometers 103, flowmeters 102, and control valves 104 are sequentially arranged on the cooling water pipe 101, that is, the cooling water pipe 101 outside the first control room 201 is provided with a thermometer 103, a flowmeter 102, and a control valve 104; the cooling water pipe 101 outside the second control room 202 is provided with a thermometer 103, a flowmeter 102, and a control valve 104; the cooling water pipe 101 outside the third control room 203 is provided with a thermometer 103, a flowmeter 102, and a control valve 104; the cooling water pipe outside the fourth control room 204 is provided with a thermometer 103, a flowmeter 102, and a control valve 104; by combining the temperature changes in the control system of the control room 2, the flowmeters 102, thermometers 103, and control valves 104 outside each control room 2 are controlled, so that the temperature of each control room 2 is within a preset range. Through the temperature control systems and stirring rate controls of the four different control rooms 2, the efficiency of sugar precipitation from the sugar paste is improved. The cooling water pipe 101 flows from the bottom of the crystal growth machine tank 1 to the top of the crystal growth machine tank 1, and the heat-exchanged cooling water is stored in the water collecting tower 105. The sugar paste flows into the crystal growth machine tank 1 from the sugar paste inlet 7 provided at the upper end of the crystal growth machine tank 1 and is discharged from the material discharge port 9 of the crystal growth machine tank 1. The flow direction of the cooling water is just opposite to that of the sugar paste, thereby improving the heat dissipation efficiency of the sugar paste.

[0023] Furthermore, a pumping pump 8 is provided at the bottom of the crystal growth machine tank 1 and at the bottom of the fourth control room 204. The pumping pump 8 is connected to the material discharge port 9 provided at the bottom of the crystal growth machine tank 1. The sugar paste after passing through the 4 control rooms 2 has a higher viscosity. The sugar paste is pumped out by the pumping pump 8 and discharged from the material discharge port 9, and the pumping speed of the pumping pump 8 can also control the residence time of the sugar paste in the control room 2.

[0024] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vertical crystal-assisting machine stirring system, comprising a crystal-assisting machine tank, characterized in that: A plurality of control rooms are arranged in the crystal-assisting machine tank body, each of which is provided with a stirring shaft, on which a plurality of stirring blades are arranged, a stirring motor is arranged at the upper end of the stirring shaft which passes through the control room, a sugar paste output port is arranged at the bottom of each control room, a sugar paste inlet is arranged at the upper end of the crystal-assisting machine tank body, and a cooling water jacket assembly is spirally sleeved on the outer wall of the crystal-assisting machine tank body.

2. According to claim 1, a vertical crystal assist machine stirring system is characterized in that: Each of the control rooms is provided with a temperature sensor, the inner wall of the auxiliary crystal machine tank is provided with a display, and each of the temperature sensors is electrically connected to the display.

3. A vertical crystal assist machine stirring system according to claim 1, characterized in that: The cooling water jacket assembly comprises a cooling water pipe, a flow meter, a thermometer and a control valve, and a plurality of thermometers, flow meters and control valves are sequentially arranged on the cooling water pipe.

4. A vertical crystal assist machine stirring system according to claim 3, characterized in that: The cooling water pipe is provided with a thermometer, a flow meter and a control valve at the node of each control room.

5. A vertical crystal assist machine stirring system according to claim 1, characterized in that: A material extraction pump is arranged at the bottom of the crystal-assisting machine tank body and at the bottom of one of the control chambers, and the material extraction pump is connected to a material discharge port arranged at the bottom of the crystal-assisting machine tank body.

6. A vertical crystal assist machine stirring system according to claim 1, characterized in that: The number of control rooms is 4.

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