Internal and external temperature control type reaction device for modified starch

Abstract

The utility model relates to an internal and external temperature control type reaction device for modified starch, which is characterized in that the upper port of a reaction tank body is connected with an upper end cover through a flange, one side of the upper end cover is provided with a feed pipe, the middle part of the upper end cover is provided with an assembly plane, and at least two vertically arranged electric push rods are uniformly distributed on the edge part opposite to the assembly plane; an inner heat exchange part is mounted in the reaction tank body, the inner heat exchange part at least comprises three annular heat exchange pipes which are concentrically arranged up and down, the annular heat exchange pipes are mutually communicated through vertical pipes, a butt joint plate is arranged on the surface of the annular heat exchange pipe at the upper part, and the lower end of a telescopic rod of the electric push rod extends into the reaction tank body and is connected with the butt joint plate; spiral heat exchange tubes are densely wound on the outer side surface of the reaction tank body; the spiral heat exchange pipe outside the device exchanges heat with the side wall of the reaction tank body, and directly exchanges heat with materials through the internal heat exchange piece inside, so that the heat exchange efficiency can be effectively improved and the reaction time can be shortened in an internal and external combined manner.

Description

Technical Field

[0001] The utility model relates to the field of production and processing of modified starch, in particular to an internal and external temperature controlled reaction device for modified starch. Background Art

[0002] The modified starch reactor is a key equipment for the production of modified starch. It uses physical, chemical or biological methods to change the natural properties of starch to adapt to specific industrial application needs. In the production process of modified starch, the design of the reactor is crucial to ensuring product quality and improving production efficiency. The modified starch reactor requires precise control of the reaction temperature. Usually, the starch milk and chemicals need to be mixed and heated to a suitable temperature to promote the reaction. Therefore, a temperature regulating device is set in the design of the reactor to directly transfer heat to the raw materials. At present, the tank body is usually heat-exchanged by setting a heating layer and an insulation layer on the outside of the reactor body, and the heat is transferred to the raw materials inside through the tank body. This external heat exchange method has a long heat conduction time, so it requires a long reaction time and has low efficiency, which needs to be optimized. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a modified starch internal and external temperature controlled reaction device.

[0004] The technical solution of the utility model is: a modified starch internal and external temperature control type reaction device, comprising a reaction tank body installed in a platform bracket, a discharge pipe is provided in the middle of the bottom of the reaction tank body, the upper port of the reaction tank body is connected to the upper end cover through a flange, a feed pipe is provided on one side of the upper end cover, and a manhole for maintenance is provided on the upper end cover, an assembly plane is provided in the middle of the upper end cover, the assembly plane and the surface of the platform bracket are arranged parallel to each other, at least two vertically arranged electric push rods are evenly distributed on the edge portion opposite to the assembly plane, the telescopic rods of the electric push rods pass through the through holes on the end cover and extend into the reaction tank body, an internal heat exchange member is installed in the reaction tank body, the internal heat exchange member includes at least three annular heat exchange tubes arranged concentrically up and down, the annular heat exchange tubes are the same spacing between the annular heat exchange tubes, the annular heat exchange tubes are connected to each other by vertical tubes, a docking plate is provided on the surface of the upper annular heat exchange tube, the lower end of the telescopic rod of the electric push rod extends into the reaction tank body and is connected to the docking plate; the outer side surface of the reaction tank body is densely wound with a spiral heat exchange tube, and the two ends of the spiral heat exchange tube extend to the two ends of the reaction tank body.

[0005] Preferably, the inner wall of the reaction tank body is evenly distributed with at least three guide slides, which are arranged along the busbar direction of the reaction tank body pair. Both ends of the vertical tube are provided with sliders, which are slidably mounted in the guide slides.

[0006] Preferably, a guiding slope is provided between the outer side surface of the guiding slideway and the inner side wall of the reaction tank body.

[0007] Preferably, an outer shell is coaxially sleeved on the outer side of the reaction tank body, and the outer shell and the reaction tank body are welded and fixed as a whole. A closed chamber is formed between the outer shell and the reaction tank body, and the spiral heat exchange tube is located in the closed chamber.

[0008] Preferably, a reduction motor is installed in the middle of the upper end cover, and the reduction motor is fixedly connected to the upper end cover through a bracket. A stirring paddle is installed in the reaction tank body, and the upper end of the paddle rod of the stirring paddle is coaxially fixedly connected to the output shaft of the reduction motor, and the paddle rod and the output shaft are fixedly connected through a coupling.

[0009] Preferably, at least two groups of blades are installed on the stirring paddle, and the blades are fixedly connected to the paddle rod through a shaft sleeve and a top screw. The shaft sleeve is sleeved on the paddle rod, and the top screw is threadedly connected to the threaded hole on the side of the shaft sleeve.

[0010] Preferably, the platform bracket includes an upper platform plate and a lower platform plate fixedly connected between the legs, a socket hole is provided in the middle of the two platform plates, and the reaction tank body is sleeved between the upper platform plate and the lower platform plate.

[0011] The beneficial technical effect of the present invention is that the spiral heat exchange tube on the outside of the device exchanges heat with the side wall of the reaction tank body, and directly exchanges heat with the material through the internal heat exchange element. The combination of the inside and the outside can effectively improve the heat exchange efficiency and shorten the reaction time. Moreover, the internal heat exchange element can be driven by the upper electric push rod to adjust its position up and down in the tank body in a stable state to adapt to the changes in the liquid level inside the tank body under different production loads, reduce the heat exchange energy consumption, and help save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 3 yes Figure 2 AA-direction cross-sectional structural diagram;

[0015] Figure 4 yes Figure 3 BB-direction cross-sectional structural diagram;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model after removing the outer shell;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the utility model after removing the upper end cover;

[0018] Figure 7 A schematic diagram of the three-dimensional structure of the internal heat exchange component of the present utility model.

[0019] In the figure, 11. reaction tank body, 111. discharge pipe, 12. upper end cover, 121. assembly plane, 122. feed pipe, 13. electric push rod, 131. telescopic rod, 141. annular heat exchange tube, 142. vertical tube, 143. slider, 144. guide slide, 15. spiral heat exchange tube, 16. outer shell, 17. reduction motor, 181. paddle rod, 182. blade, 191. upper platform plate, 192. lower platform plate, 193. support leg. DETAILED DESCRIPTION

[0020] Example 1, see attached Figure 1-5 , a modified starch internal and external temperature control reaction device, including a reaction tank body 11 installed in a platform bracket, a discharge pipe 111 is provided in the middle of the bottom of the reaction tank body, the upper port of the reaction tank body 11 is connected to the upper end cover 12 through a flange, and a feed pipe 122 is provided on one side of the upper end cover, so that the material enters the reaction tank body 11 from the top through the feed pipe, and an assembly plane 121 is provided in the middle of the upper end cover 12. The assembly plane 121 is designed to facilitate the installation of various drive components to ensure the stability of the drive component on the surface of the upper end cover 12. An internal heat exchange component is installed in the reaction tank body 11, and the internal heat exchange component includes at least three annular heat exchange tubes 141 arranged concentrically up and down, and the annular heat exchange tubes are connected to each other through vertical tubes 142. A heat exchange medium inlet pipe and a discharge pipe are provided on the upper annular heat exchange tube 141. The upper ends of the heat exchange medium inlet pipe and the discharge pipe are led out from the upper end cover 12, and the outer side of the reaction tank body 11 is densely wound with spiral heat exchange tubes 15. The spiral heat exchange tube 15 outside the device exchanges heat with the side wall of the reaction tank body 11, and directly exchanges heat with the material through the internal heat exchange component. The combination of internal and external methods can effectively improve the heat exchange efficiency and shorten the reaction time.

[0021] An outer shell 16 is coaxially mounted on the outer side of the reaction tank body 11, and a closed chamber is formed between the outer shell and the reaction tank body 11. The spiral heat exchange tube 15 is located in the closed chamber. The closed chamber is used to maintain the temperature so that most of the heat of the spiral heat exchange tube can act on the reaction tank body 11. A medium inlet pipe is provided at the upper part of the spiral heat exchange tube 15 and a medium outlet pipe is provided at the lower end. The medium can be water or steam.

[0022] like Figure 3 and Figure 4As shown, a reduction motor 17 is installed in the middle of the upper end cover 12, and a stirring paddle is installed in the reaction tank body 11. The upper end of the paddle rod 181 of the stirring paddle is coaxially fixedly connected to the output shaft of the reduction motor. The stirring paddle is driven by the reduction motor 17 to rotate and stir the liquid in the reaction tank body 11 to improve the uniformity of heat exchange of the liquid. At least two groups of blades 182 are installed on the stirring paddle, and the blades 182 are fixedly connected to the paddle rod 181 through a shaft sleeve and a top screw. The shaft sleeve and the top screw connection structure facilitates the assembly or disassembly of the stirring paddle, and can conveniently adjust the height of the blade 182 in the tank body to match its stirring state with the production state.

[0023] The platform bracket includes an upper platform plate 191 and a lower platform plate 192 fixedly connected between the support legs 193. The reaction tank body 11 is mounted between the upper platform plate 191 and the lower platform plate 192. The platform bracket can stably and fixedly support the reaction tank body 11 to ensure that the reaction tank body is in a vertically stable state.

[0024] Example 2, see attached Figure 3-4 , 6-7, this embodiment is basically the same as the first embodiment, except that: three vertically arranged electric push rods 13 are evenly distributed on the edge of the assembly plane 121, a docking plate is provided on the surface of the upper annular heat exchange tube 141, and the lower end of the telescopic rod 131 of the electric push rod 13 extends into the reaction tank body 11 and is connected to the docking plate. The three evenly distributed electric push rods 13 can ensure that the internal heat exchange element is in a balanced state in the reaction tank body 11, and the three electric push rods 13 are synchronously driven to drive the internal heat exchange element to rise or fall. At least three guide slides 144 are evenly distributed on the inner wall of the reaction tank body 11, and sliders 143 are provided at both ends of the vertical tube 142. The sliders 143 are slidably mounted in the guide slides 144. The three guide slides 144 provide guide support for the internal heat exchange component, so that the internal heat exchange component is in a stable state during the up and down movement, avoiding the phenomenon of swinging and conflicting with the stirring paddle inside the tank body. The height adjustment of the internal heat exchange component can adapt to the changes in the liquid level inside the tank body under different production loads, thereby reducing the energy consumption of heat exchange.

[0025] A guide slope is provided between the outer side surface of the guide slide 144 and the inner side wall of the reaction tank body 11, which provides guidance for the flow of the liquid inside the reaction tank body 11, thereby preventing the raised guide slide 144 from having too much influence on the flow and stirring effect of the liquid.

Claims

1. A modified starch internal and external temperature controlled reaction device, comprising a reaction tank body mounted on a platform support, with a discharge pipe provided in the middle of the bottom of the reaction tank body, characterized by: The upper port of the reaction tank body is connected to the upper end cover through a flange, a feed pipe is provided on one side of the upper end cover, and an assembly plane is provided in the middle of the upper end cover. At least two vertically arranged electric push rods are evenly distributed on the edge of the assembly plane. An internal heat exchange component is installed in the reaction tank body, and the internal heat exchange component includes at least three annular heat exchange tubes arranged concentrically up and down. The annular heat exchange tubes are connected to each other through vertical tubes. A docking plate is provided on the surface of the upper annular heat exchange tube, and the lower end of the telescopic rod of the electric push rod extends into the reaction tank body and is connected to the docking plate; a spiral heat exchange tube is provided on the outer side of the reaction tank body.

2. The modified starch internal and external temperature controlled reaction device according to claim 1, characterized in that: The inner side wall of the reaction tank body is evenly distributed with at least three guide slideways, and both ends of the vertical tube are provided with sliders, which are slidably sleeved in the guide slideways.

3. The modified starch internal and external temperature controlled reaction device according to claim 2, characterized in that: A guiding slope is provided between the outer side surface of the guiding slideway and the inner side wall of the reaction tank body.

4. The modified starch internal and external temperature controlled reaction device according to claim 1, characterized in that: An outer shell is coaxially sleeved on the outer side of the reaction tank body, and a closed chamber is formed between the outer shell and the reaction tank body. The spiral heat exchange tube is located in the closed chamber.

5. The modified starch internal and external temperature controlled reaction device according to claim 1, characterized in that: A reduction motor is installed in the middle of the upper end cover, a stirring paddle is installed in the reaction tank body, and the upper end of the paddle rod of the stirring paddle is coaxially fixedly connected to the output shaft of the reduction motor.

6. The modified starch internal and external temperature controlled reaction device according to claim 5, characterized in that: At least two groups of blades are installed on the stirring paddle, and the blades are fixedly connected to the paddle rod through a shaft sleeve and a top screw.

7. The modified starch internal and external temperature controlled reaction device according to claim 1, characterized in that: The platform bracket comprises an upper platform plate and a lower platform plate which are fixedly connected between the legs, and the reaction tank body is sleeved between the upper platform plate and the lower platform plate.

Images