Energy-saving constant temperature device for vinasse treatment

Abstract

The invention discloses an energy-saving constant temperature device for vinasse treatment, and belongs to the technical field of vinasse treatment. The energy-saving constant temperature device comprises a treatment mechanism, the treatment mechanism comprises a mounting frame, a treatment tank body is fixedly connected to the interior of the mounting frame, and a treatment tank cover is arranged at the top of the treatment tank body. The invention aims to solve the problem that waste gas heat generated in the treatment process is not effectively recovered in the prior art, and achieves the technical effect that the waste gas heat generated by vinasse fermentation or drying can be fully recovered. Waste gas sequentially flows through the first spiral heat energy recovery pipe, the second spiral heat energy recovery pipe and the preheating coil pipe, heat is transmitted to the phase change material in the phase change material storage cavity and water sprayed out of the preheating cavity, and efficient recycling of the heat is achieved. In addition, the spiral preheating water inlet pipeline and the spiral preheating air inlet pipeline utilize recycled heat to preheat water and air, and the heat supply requirement of an external source is further lowered.

Description

Technical Field

[0001] The invention relates to the technical field of lees management, and in particular to an energy-saving constant temperature device for lees management. Background Art

[0002] In the brewing process of liquor, beer, and other products, distiller's grains, a major byproduct, are crucial for their management and resource utilization. Distiller's grains contain a large amount of organic matter, which can easily cause environmental pollution if improperly handled. Currently, distiller's grains treatment typically involves processes such as constant-temperature fermentation, drying, or biodegradation.

[0003] Traditional distiller's grains constant temperature devices mostly rely on external heating sources such as electric heating or steam boilers, and do not effectively recover the heat of the waste gas generated during the treatment process. The waste gas emitted during the fermentation of distiller's grains is directly discharged, resulting in a large amount of heat energy waste. At the same time, the lack of the application of high-efficiency heat storage media such as phase change materials makes it impossible to achieve heat recycling, resulting in high energy consumption costs. Therefore, an energy-saving distiller's grains constant temperature device is proposed. Summary of the Invention

[0004] To this end, the present invention provides an energy-saving constant temperature device for distiller's grains management to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: According to the first aspect of the present invention, an energy-saving constant temperature device for wine lees treatment includes a treatment mechanism, the treatment mechanism includes a mounting frame, the interior of the mounting frame is fixedly connected to the treatment tank body, the top of the treatment tank body is provided with a treatment tank cover, the bottom of the treatment tank body is provided with a treatment tank bottom, and the front of the mounting frame is fixedly connected to a control panel; a stirring mechanism, the stirring mechanism includes a mounting frame, the surface of the mounting frame is fixedly connected to the inner wall of the treatment tank body, the top of the mounting frame is fixedly connected to a motor, and the surface of the motor shaft is fixedly connected to a stirring rod; an energy-saving piping mechanism, the energy-saving piping mechanism includes a multi-stage heat recovery outlet pipeline, a spiral preheating water inlet pipeline and a spiral preheating air inlet pipeline.

[0006] Furthermore, the treatment tank body includes an insulation tank body, a first phase change material storage cavity is provided inside the insulation tank body, a second phase change material storage cavity is provided inside the insulation tank body and on the inner side of the first phase change material storage cavity, a heating plate is fixedly connected to the inner wall of the insulation tank body, and the heating plate is electrically connected to the control panel.

[0007] Furthermore, the treatment tank cover includes an insulated tank cover with a preheating cavity opened inside, a feed pipe is provided inside the insulated tank cover, one end of the feed pipe passes through the insulated tank cover and extends to the inside of the insulated tank body, and the inner cavity of the insulated tank cover is connected to the inside of the insulated tank body.

[0008] Furthermore, the bottom of the treatment tank includes an insulated tank bottom with an installation cavity provided inside, and a discharge pipe is provided inside the insulated tank bottom.

[0009] Furthermore, the multi-stage heat energy recovery outlet pipeline includes a first air outlet, which is arranged at the bottom of the insulation tank cover, and a first spiral heat energy recovery pipe is arranged on the surface of the first air outlet, and one end of the first spiral heat energy recovery pipe is connected to a second spiral heat energy recovery pipe, and the first spiral heat energy recovery pipe is arranged inside the second phase change material storage cavity.

[0010] Furthermore, the second spiral heat recovery pipe is arranged inside the first phase change material storage cavity, one end of the second spiral heat recovery pipe is connected to the preheating coil, one end of the preheating coil is connected to the second air outlet, the preheating coil is arranged inside the insulation tank cover, and the second air outlet is arranged on the surface of the insulation tank cover.

[0011] Furthermore, the spiral preheating water inlet pipeline includes a water inlet pipe of an external water supply device, one end of the water inlet pipe is connected to a first spiral preheating pipe, the first spiral preheating pipe is arranged inside the second phase change material storage cavity, one end of the first spiral preheating pipe is connected to a connecting pipe, one end of the connecting pipe is provided with an atomizing nozzle, and the atomizing nozzle is arranged at the top of the inner cavity of the insulation tank cover.

[0012] Furthermore, the spiral preheating air intake pipeline includes an air intake pipe connected to an external air transmission device, and one end of the air intake pipe is connected to a second spiral preheating pipe.

[0013] Furthermore, the second spiral preheating tube is arranged inside the second phase change material storage cavity, one end of the second spiral preheating tube is connected to the second connecting tube, one end of the second connecting tube is connected to the air intake plate, and the air intake plate is arranged at the top of the inner cavity at the bottom of the insulation tank.

[0014] Furthermore, the stirring mechanism also includes a discharge rod, the interior of the discharge rod is fixedly connected to the lower end of the motor shaft, and the bottom of the discharge rod overlaps the top of the bottom of the insulation tank.

[0015] The present invention has the following advantages: by providing a multi-stage heat recovery outlet pipeline, the waste gas heat generated by the fermentation or drying of the lees can be fully recovered. The waste gas flows through the first spiral heat recovery pipe, the second spiral heat recovery pipe and the preheating coil in sequence, and the heat is transferred to the phase change material in the phase change material storage chamber and the water sprayed out of the preheating chamber, thereby realizing efficient recycling of heat. In addition, the spiral preheating water inlet pipeline and the spiral preheating air inlet pipeline use the recovered heat to preheat the water and air, further reducing the demand for external heating. The multiple heat recovery design greatly reduces energy waste, significantly reduces energy consumption costs, and improves energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of an energy-saving constant temperature device for distiller's grains management provided by the present invention.

[0017] Figure 2 This is a schematic diagram of the decomposed structure of an energy-saving constant temperature device for distiller's grains management provided by the present invention.

[0018] Figure 3 This is a schematic diagram of the decomposed structure of an energy-saving constant temperature device for distiller's grains management provided by the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of the treatment tank body of an energy-saving constant temperature device for distiller's grains treatment provided by the present invention.

[0020] Figure 5 This is a schematic diagram of the decomposed structure of the energy-saving piping mechanism of an energy-saving constant temperature device for distiller's grains treatment provided by the present invention.

[0021] Figure 6 This is a schematic structural diagram of the stirring mechanism of an energy-saving constant temperature device for distiller's grains management provided by the present invention.

[0022] Figure 7 This is a schematic diagram of the multi-stage heat energy recovery outlet pipeline structure of an energy-saving constant temperature device for distiller's grains treatment provided by the present invention.

[0023] Figure 8 This is a schematic diagram of the spiral preheating air intake pipeline structure of an energy-saving constant temperature device for lees treatment provided by the present invention.

[0024] Figure 9 This is a schematic diagram of the spiral preheating water inlet pipeline structure of an energy-saving constant temperature device for distiller's grains treatment provided by the present invention.

[0025] Figure 10 This is a schematic structural diagram of the stirring mechanism of an energy-saving constant temperature device for distiller's grains management provided by the present invention.

[0026] In the figure: 11, mounting frame; 12, treatment tank body; 121, insulation tank body; 122, first phase change material storage chamber; 123, second phase change material storage chamber; 124, heating plate; 13, treatment tank cover; 131, insulation tank cover; 132, feed pipe; 14, treatment tank bottom; 141, insulation tank bottom; 142, discharge pipe; 15, control panel; 21, mounting frame; 22, motor; 23, stirring rod; 24, discharge rod; 31, multi-stage heat recovery outlet Pipeline; 311, first air outlet; 312, first spiral heat recovery pipe; 313, second spiral heat recovery pipe; 314, preheating coil; 315, second air outlet; 32, spiral preheating water inlet pipeline; 321, water inlet pipe; 322, first spiral preheating pipe; 323, connecting pipe; 324, atomizing nozzle; 33, spiral preheating air inlet pipeline; 331, air inlet pipe; 332, second spiral preheating pipe; 333, second connecting pipe; 334, air inlet disk. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention. Example

[0028] like Figures 1 to 10 As shown, an energy-saving constant temperature device for distiller's grains treatment in an embodiment of the first aspect of the present invention includes a treatment mechanism, the treatment mechanism includes a mounting frame 11, the interior of the mounting frame 11 is fixedly connected to a treatment tank body 12, the top of the treatment tank body 12 is provided with a treatment tank cover 13, the bottom of the treatment tank body 12 is provided with a treatment tank bottom 14, and the front of the mounting frame 11 is fixedly connected to a control panel 15; a stirring mechanism, the stirring mechanism includes a mounting frame 21, the surface of the mounting frame 21 is fixedly connected to the inner wall of the treatment tank body 12, the top of the mounting frame 21 is fixedly connected to a motor 22, and the surface of the rotating shaft of the motor 22 is fixedly connected to a stirring rod 23; an energy-saving piping mechanism, the energy-saving piping mechanism includes a multi-stage heat recovery outlet pipeline 31, a spiral preheating water inlet pipeline 32 and a spiral preheating air inlet pipeline 33; In the above embodiment, it should be noted that the wine lees are injected into the interior of the insulation tank body 121 through the feed pipe 132 of the treatment tank cover 13, and the feed pipe 132 is arranged through the insulation tank cover 131, and the residual heat remaining in the pretreatment stage in the tank is used to preliminarily preheat the newly injected wine lees, thereby reducing the impact of the cold material on the constant temperature environment in the tank, and then the stirring mechanism is started: the mounting frame 21 installed on the inner wall of the treatment tank body 12 supports the motor 22, and its rotating shaft drives the stirring rod 23 to rotate at high speed to preliminarily mix the wine lees and ensure that the material is evenly distributed; at the same time, the discharge rod 24 fixedly connected to the lower end of the motor shaft rotates synchronously close to the top of the insulation tank bottom 141 to scrape off the material that may accumulate on the bottom of the tank, thereby avoiding the risk of uneven temperature or deterioration caused by local residues. The heat-insulating tank body 121 of the treatment tank body 12 is internally provided with a double-layer phase change material storage chamber: the outer first phase change material storage chamber 122 is filled with a high-temperature phase change material, such as a fatty acid ester with a melting point of 50-60°C, and the inner second phase change material storage chamber 123 is filled with a medium-temperature phase change material, such as paraffin with a melting point of 30-40°C. When the temperature inside the tank is lower than the set value, the control panel 15 triggers the heating plate 124 to turn on the power for heating. The heat acts directly on the lees through conduction, and heats the inner and outer layers of phase change materials at the same time. The medium-temperature phase change material melts first to absorb heat. When the temperature continues to rise, the high-temperature phase change material further stores heat, forming a "gradient heat storage". Conversely, when the temperature inside the tank is higher than the set value, the phase change material solidifies and releases the stored heat. In conjunction with the power regulation of the heating plate, precise temperature control of "passive heat storage + active compensation" is achieved to avoid energy waste. The technical effect achieved by the above embodiment is that as the temperature continues to rise, the high-temperature phase-change material further stores heat, forming a "gradient heat storage." Conversely, when the temperature inside the tank exceeds the set value, the phase-change material solidifies and releases the stored heat. Combined with the power regulation of the heating plate, this achieves precise temperature control through "passive heat storage + active compensation," avoiding energy waste. Example

[0029] like Figures 1 to 10 As shown, an energy-saving constant temperature device for distiller's grains treatment includes all the contents of Example 1. In addition, the treatment tank body 12 includes an insulation tank body 121, and a first phase change material storage cavity 122 is provided inside the insulation tank body 121. A second phase change material storage cavity 123 is provided inside the insulation tank body 121 and on the inner side of the first phase change material storage cavity 122. A heating plate 124 is fixedly connected to the inner wall of the insulation tank body 121, and the heating plate 124 is electrically connected to the control panel 15. The treatment tank cover 13 includes an insulation tank cover 131 with a preheating cavity provided therein, and a feed pipe 132 is provided inside the insulation tank cover 131. One end of the feed pipe 132 passes through the insulation tank cover 131 and extends to the interior of the insulation tank body 121. The inner cavity of the insulation tank cover 131 is communicated with the interior of the insulation tank body 121. The treatment tank bottom 14 includes an insulation tank bottom 141 with an installation cavity provided therein, and a discharge pipe 142 is provided inside the insulation tank bottom 141. In the above embodiment, it should be noted that the hot waste gas generated during the lees processing is discharged from the first air outlet 311 at the bottom of the insulation tank cover 131 and enters the three-stage recovery structure in sequence: the first stage: the waste gas first flows through the first spiral heat recovery pipe 312 in the second phase change material storage cavity 123, and transfers heat to the medium-temperature phase change material in the range of 30-40°C, thereby improving its heat storage capacity; the second stage: it then enters the second spiral heat recovery pipe 313 in the first phase change material storage cavity 122, heating the high-temperature phase change material in the range of 50-60°C, thereby achieving deep heat extraction; the third stage: finally, the waste gas enters the preheating coil 314 inside the insulation tank cover 131, heats the preheating chamber environment around the feed pipe 132, and preheats the water sprayed to the surface of the preheating coil 314, and finally the low-temperature waste gas is discharged from the second air outlet 315 on the surface of the tank cover; The technical effect achieved by the above embodiment is: the exhaust gas flows through the first spiral heat recovery pipe, the second spiral heat recovery pipe and the preheating coil in sequence, and the heat is transferred to the phase change material in the phase change material storage chamber and the water sprayed out of the preheating chamber, thereby realizing efficient recycling of heat. Example

[0030] like Figures 1 to 10As shown, an energy-saving constant temperature device for wine lees treatment includes all the contents of Example 2. In addition, a multi-stage heat recovery outlet pipeline 31 includes a first air outlet 311, the first air outlet 311 is arranged at the bottom of the heat preservation tank cover 131, and a first spiral heat recovery pipe 312 is arranged on the surface of the first air outlet 311. One end of the first spiral heat recovery pipe 312 is connected to the second spiral heat recovery pipe 313. The first spiral heat recovery pipe 312 is arranged inside the second phase change material storage cavity 123, and the second spiral heat recovery pipe 313 is arranged inside the first phase change material storage cavity 122. One end of the second spiral heat recovery pipe 313 is connected to the preheating coil 314, and one end of the preheating coil 314 is connected to the second air outlet 315. The preheating coil 314 is arranged inside the heat preservation tank cover 131, and the second air outlet 315 is arranged on the surface of the heat preservation tank cover 131. The spiral preheating water inlet pipeline 32 includes a water inlet pipe 321 connected to an external water supply device. The water inlet pipe One end of 321 is connected to the first spiral preheating pipe 322, which is arranged inside the second phase change material storage chamber 123. One end of the first spiral preheating pipe 322 is connected to the connecting pipe 323, and one end of the connecting pipe 323 is provided with an atomizing nozzle 324. The atomizing nozzle 324 is arranged on the top of the inner cavity of the heat preservation tank cover 131. The spiral preheating air intake pipeline 33 includes an air intake pipe 331 connected to the external gas transmission equipment. One end of the air intake pipe 331 is connected to the second spiral preheating pipe 322. Tube 332, the second spiral preheating tube 332 is arranged inside the second phase change material storage chamber 123, one end of the second spiral preheating tube 332 is connected to the second connecting tube 333, one end of the second connecting tube 333 is connected to the air inlet disk 334, the air inlet disk 334 is arranged at the top of the inner cavity of the insulation tank bottom 141, the stirring mechanism also includes a discharge rod 24, the interior of the discharge rod 24 is fixedly connected to the lower end of the rotating shaft of the motor 22, and the bottom of the discharge rod 24 overlaps the top of the insulation tank bottom 141; In the above embodiment, it should be noted that when water needs to be added, external cold water enters the first spiral preheating tube 322 in the second phase change material storage chamber 123 through the water inlet pipe 321, absorbs the heat released by the medium-temperature phase change material and preheats it to 30-35°C, and is transported to the atomizing nozzle 324 on the top of the inner cavity of the insulation tank cover 131 through the connecting pipe 323, and is sprayed into the tank evenly in the form of mist to avoid the sudden drop in temperature caused by the direct injection of cold water. At the same time, the humidity in the tank is adjusted to the process requirements. When air needs to be introduced, the external air enters the second phase change material storage chamber 123 through the air inlet pipe 331. After preheating, the second spiral preheating tube 332 within cavity 123 is transported through a second connecting tube 333 to the air inlet disk 334 at the top of the inner cavity of the insulated tank bottom 141. The air is evenly diffused through its micropores to the tank bottom, providing preheated air for aerobic fermentation. This air also creates an upward airflow, promoting heat and mass transfer within the tank. The stirring rod 23 rotates periodically at a frequency preset by the control panel 15, forcibly mixing the materials in the upper high-temperature area with the lower low-temperature area. This, combined with the scraping action of the bottom discharge rod 24, ensures temperature uniformity within the tank and prevents material crusting or sedimentation. The air inlet disk 334 works in conjunction with the atomizing nozzle 324: preheated air flows upward from the tank bottom, counter-interfering with the atomizing water curtain, improving the efficiency of gas-liquid heat and mass exchange and maintaining stable humidity within the tank. Simultaneously, the airflow causes the lees to churn slightly, enhancing the stirring effect, creating a dual homogenization mechanism of "mechanical stirring + airflow disturbance." After processing, the lees are discharged through discharge pipe 142 inside the insulated tank bottom 141. Driven by motor 22, discharge rod 24 rotates close to the tank bottom, scraping the remaining material to the discharge port, reducing material waste. Simultaneously with discharge, when a new batch of material is ready to be fed, feed pipe 132 again passes through the preheating chamber of the insulated tank cover 131, utilizing the residual heat from the previous cycle to preheat the feed port area, forming a full-process thermal energy closed loop of "heating-heat storage-preheating-discharge."

[0031] The technical effect achieved by the above embodiment is: reducing material waste. While discharging, when a new batch of materials is ready to be fed, the feed pipe 132 passes through the preheating chamber of the insulation tank cover 131 again, and uses the waste heat of the exhaust gas in the previous cycle to preheat the feed port area, forming a full-process thermal energy closed loop of "heating-heat storage-preheating-discharge".

[0032] Working principle: the wine lees are injected into the insulation tank body 121 through the feed pipe 132 of the treatment tank cover 13. The feed pipe 132 is arranged through the insulation tank cover 131, and the residual heat remaining in the pretreatment stage in the tank is used to preliminarily preheat the newly injected wine lees, reducing the impact of cold materials on the constant temperature environment in the tank, and then the stirring mechanism is started: the mounting frame 21 installed on the inner wall of the treatment tank body 12 supports the motor 22, and its rotating shaft drives the stirring rod 23 to rotate at high speed to preliminarily mix the wine lees and ensure that the material is evenly distributed; at the same time, the discharge rod 24 fixedly connected to the lower end of the motor shaft rotates synchronously close to the top of the insulation tank bottom 141 to scrape off the material that may be accumulated on the bottom of the tank, avoiding the risk of uneven temperature or deterioration caused by local residues. A double-layer phase change material storage chamber is provided inside the heat-insulating tank body 121 of the treatment tank body 12: the outer first phase change material storage chamber 122 is filled with high-temperature phase change material, such as fatty acid ester with a melting point of 50-60°C, and the inner second phase change material storage chamber 123 is filled with medium-temperature phase change material, such as paraffin with a melting point of 30-40°C. When the temperature inside the tank is lower than the set value, the control panel 15 triggers the heating plate 124 to turn on the power for heating. The heat acts directly on the lees through conduction, and at the same time heats the inner and outer layers of phase change materials. The medium-temperature phase change material melts first and absorbs heat. When the temperature continues to rise, the high-temperature phase change material further stores heat to form "gradient heat storage". On the contrary, when the temperature in the tank is higher than the set value, the phase change material solidifies and releases the stored heat. Cooperating with the power regulation of the heating plate, the precise temperature control of "passive heat storage + active compensation" is realized to avoid energy waste. The hot waste gas generated during the lees processing is discharged from the first air outlet 311 at the bottom of the insulation tank cover 131 and enters the three-stage recovery structure in sequence: First stage: the waste gas first flows through the first spiral heat recovery pipe 312 in the second phase change material storage cavity 123, and transfers the heat to the medium temperature phase change material 30-4 0℃ range, improving its heat storage capacity; second stage: then entering the second spiral heat recovery pipe 313 in the first phase change material storage cavity 122, heating the high-temperature phase change material in the range of 50-60℃, realizing deep heat extraction; third stage: finally, the exhaust gas enters the preheating coil 314 inside the insulation tank cover 131, heats the preheating cavity environment around the feed pipe 132, and preheats the water sprayed to the surface of the preheating coil 314, and finally the low-temperature exhaust gas is discharged from the second air outlet 315 on the surface of the tank cover.When water needs to be added, external cold water enters the first spiral preheating tube 322 in the second phase change material storage chamber 123 through the water inlet pipe 321, absorbs the heat released by the medium-temperature phase change material and preheats to 30-35°C, and is transported to the atomizing nozzle 324 on the top of the inner cavity of the insulation tank cover 131 through the connecting pipe 323, and is sprayed into the tank evenly in the form of mist to avoid the sudden drop in temperature caused by direct injection of cold water. At the same time, the humidity in the tank is adjusted to the process requirements. When air needs to be introduced, external air enters the first spiral preheating tube 322 in the second phase change material storage chamber 123 through the air inlet pipe 331. After preheating, the two spiral preheating tubes 332 are transported through the second connecting tube 333 to the air inlet disk 334 at the top of the inner cavity of the insulated tank bottom 141. The air is evenly diffused through its micropores to the tank bottom, providing preheated air for aerobic fermentation. This air also creates an upward airflow, promoting heat and mass transfer within the tank. The stirring rod 23 rotates periodically according to a frequency preset by the control panel 15, forcibly mixing the materials in the upper high-temperature area with the lower low-temperature area. This, combined with the scraping action of the bottom discharge rod 24, ensures temperature uniformity within the tank and prevents material crusting or sedimentation. The air inlet disk 334 and the atomizing nozzle 324 work in tandem: preheated air flows upward from the tank bottom, coming into counter-contact with the atomizing water curtain, enhancing the efficiency of gas-liquid heat and mass exchange and maintaining stable humidity within the tank. Simultaneously, the airflow causes the lees to churn slightly, enhancing the stirring effect, creating a dual homogenization mechanism of "mechanical agitation + airflow disturbance." After processing, the lees are discharged through discharge pipe 142 inside the insulated tank bottom 141. Driven by motor 22, discharge rod 24 rotates close to the tank bottom, scraping the remaining material to the discharge port, reducing material waste. Simultaneously with discharge, when a new batch of material is ready to be fed, feed pipe 132 again passes through the preheating chamber of the insulated tank cover 131, utilizing the residual heat from the previous cycle to preheat the feed port area, forming a full-process thermal energy closed loop of "heating-heat storage-preheating-discharge."

Claims

1. An energy-saving constant temperature device for distiller's grains treatment, characterized in that: include A treatment mechanism, the treatment mechanism comprising a mounting frame (11), the interior of the mounting frame (11) being fixedly connected to a treatment tank body (12), the top of the treatment tank body (12) being provided with a treatment tank cover (13), the bottom of the treatment tank body (12) being provided with a treatment tank bottom (14), and the front of the mounting frame (11) being fixedly connected to a control panel (15); A stirring mechanism, the stirring mechanism comprising a mounting frame (21), the surface of the mounting frame (21) being fixedly connected to the inner wall of the treatment tank body (12), the top of the mounting frame (21) being fixedly connected to a motor (22), and the surface of the rotating shaft of the motor (22) being fixedly connected to a stirring rod (23); An energy-saving pipeline mechanism, comprising a multi-stage heat energy recovery outlet pipeline (31), a spiral preheating water inlet pipeline (32), and a spiral preheating air inlet pipeline (33).

2. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The treatment tank body (12) includes an insulation tank body (121), a first phase change material storage cavity (122) is provided inside the insulation tank body (121), a second phase change material storage cavity (123) is provided inside the insulation tank body (121) and on the inner side of the first phase change material storage cavity (122), a heating plate (124) is fixedly connected to the inner wall of the insulation tank body (121), and the heating plate (124) is electrically connected to the control panel (15).

3. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The treatment tank cover (13) includes an insulation tank cover (131) with a preheating cavity provided therein, a feed pipe (132) is provided inside the insulation tank cover (131), one end of the feed pipe (132) passes through the insulation tank cover (131) and extends to the interior of the insulation tank body (121), and the inner cavity of the insulation tank cover (131) is communicated with the interior of the insulation tank body (121).

4. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The treatment tank bottom (14) comprises a heat-insulating tank bottom (141) with an installation cavity provided therein, and a discharge pipe (142) is provided inside the heat-insulating tank bottom (141).

5. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The multi-stage heat energy recovery outlet pipeline (31) comprises a first air outlet (311), the first air outlet (311) being arranged at the bottom of the heat-insulating tank cover (131), a first spiral heat energy recovery pipe (312) being arranged on the surface of the first air outlet (311), one end of the first spiral heat energy recovery pipe (312) being connected to a second spiral heat energy recovery pipe (313), and the first spiral heat energy recovery pipe (312) being arranged inside the second phase change material storage cavity (123).

6. The energy-saving constant temperature device for distiller's grains treatment according to claim 5, characterized in that: The second spiral heat recovery pipe (313) is arranged inside the first phase change material storage cavity (122), one end of the second spiral heat recovery pipe (313) is connected to the preheating coil (314), one end of the preheating coil (314) is connected to the second air outlet (315), the preheating coil (314) is arranged inside the heat preservation tank cover (131), and the second air outlet (315) is arranged on the surface of the heat preservation tank cover (131).

7. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The spiral preheating water inlet pipeline (32) includes a water inlet pipe (321) of an external water delivery device, one end of the water inlet pipe (321) is connected to a first spiral preheating pipe (322), the first spiral preheating pipe (322) is arranged inside the second phase change material storage cavity (123), one end of the first spiral preheating pipe (322) is connected to a connecting pipe (323), one end of the connecting pipe (323) is provided with an atomizing nozzle (324), and the atomizing nozzle (324) is arranged at the top of the inner cavity of the insulation tank cover (131).

8. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The spiral preheating air intake pipeline (33) comprises an air intake pipe (331) connected to an external air transmission device, and one end of the air intake pipe (331) is connected to a second spiral preheating pipe (332).

9. The energy-saving constant temperature device for distiller's grains treatment according to claim 8, characterized in that: The second spiral preheating tube (332) is arranged inside the second phase change material storage cavity (123), one end of the second spiral preheating tube (332) is connected to the second connecting tube (333), and one end of the second connecting tube (333) is connected to the air intake disk (334), and the air intake disk (334) is arranged at the top of the inner cavity of the insulation tank bottom (141).

10. The energy-saving constant temperature device for distiller's grains treatment according to claim 1, characterized in that: The stirring mechanism further comprises a discharge rod (24), the interior of the discharge rod (24) being fixedly connected to the lower end of the rotating shaft of the motor (22), and the bottom of the discharge rod (24) being overlapped with the top of the bottom (141) of the insulation tank.

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