Cooling device for double-cone rotary vacuum drier

Abstract

The utility model provides a cooling device for a double-cone rotary vacuum dryer, which relates to the technical field of double-cone rotary vacuum dryers and comprises a hot water circulating mechanism, a circulating water cooling mechanism and a switching mechanism. The hot water circulating mechanism comprises a hot water tank, a hot water inlet pipe and a hot water outlet pipe; one end of the hot water inlet pipe is connected with an outlet of the hot water tank, and the other end is connected with an inlet of a jacket of the double-cone rotary vacuum dryer; the other end of the hot water outlet pipe is connected with the inlet of the hot water tank; the circulating water cooling mechanism comprises a circulating water input pipe and a circulating water return pipe which are connected with each other; the conversion mechanism comprises a cooling water inlet pipe and a cooling water outlet pipe; one end of the cooling water inlet pipe is connected with the circulating water input pipe, and the other end is connected with an inlet of the jacket; one end of the cooling water outlet pipe is connected with the circulating water return pipe, and the other end is connected with the outlet of the jacket. When the double-cone rotary vacuum dryer needs to be cooled, hot water in the jacket is replaced with cold water, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-cone rotary vacuum dryers, in particular to a cooling device used for double-cone rotary vacuum dryers. Background Art

[0002] The double-cone rotary vacuum dryer currently used in the workshop is only connected to a hot water circulation system, which is used to provide circulating hot water to the jacket of the double-cone rotary vacuum dryer, and the jacket has a good thermal insulation effect.

[0003] After the product is dried, it is required to cool to room temperature before collecting the material, but the hot water in the jacket cannot be discharged, the cooling time is as long as several hours, and the cooling efficiency is low. Utility Model Content

[0004] In view of the above situation, the utility model provides a cooling device for a double-cone rotary vacuum dryer, aiming to solve the technical problems that the existing double-cone rotary vacuum dryer is only connected to a hot water circulation system, and the product is required to be cooled to room temperature before collecting after drying, but the hot water in the jacket cannot be discharged, the cooling time is as long as several hours, and the cooling efficiency is low.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a cooling device for a double-cone rotary vacuum dryer, comprising a hot water circulation mechanism, a circulating water cooling mechanism and a conversion mechanism;

[0007] The hot water circulation mechanism includes a hot water tank, a hot water inlet pipe and a hot water outlet pipe;

[0008] The hot water tank is used to store hot water;

[0009] One end of the hot water inlet pipe is connected to the outlet of the hot water tank through a circulation pump, and the other end is connected to the inlet of the jacket of the double-cone rotary vacuum dryer;

[0010] One end of the hot water outlet pipe is connected to the outlet of the jacket, and the other end is connected to the inlet of the hot water tank; a hot water outlet valve is arranged on the hot water outlet pipe;

[0011] The circulating water cooling mechanism comprises a circulating water input pipe and a circulating water return pipe connected to each other;

[0012] The conversion mechanism includes a cooling water inlet pipe and a cooling water outlet pipe;

[0013] One end of the cooling water inlet pipe is connected to the circulating water input pipe, and the other end is connected to the inlet of the jacket; a cooling water inlet valve is arranged on the cooling water inlet pipe;

[0014] One end of the cooling water outlet pipe is connected to the circulating water return pipe, and the other end is connected to the outlet of the jacket; a cooling water outlet valve is arranged on the cooling water outlet pipe.

[0015] In some embodiments of the utility model, a water supply pipe is also included, one end of the water supply pipe is connected to the cooling water outlet pipe, and the other end is connected to the hot water outlet pipe, and a water supply valve is arranged on the water supply pipe.

[0016] In some embodiments of the utility model, a buffer tank is further included which is arranged on the path where the water supply pipe is located, the outlet of the buffer tank is connected to the inlet of the hot water tank, and a drain valve is arranged between the outlet of the buffer tank and the inlet of the hot water tank.

[0017] In some embodiments of the utility model, the cooling water inlet pipe is connected to the hot water inlet pipe and the inlet of the jacket through a tee.

[0018] In some embodiments of the utility model, the cooling water outlet pipe is connected to the hot water outlet pipe and the outlet of the jacket through a tee.

[0019] In some embodiments of the present invention, electric heating is provided in the hot water tank.

[0020] In some embodiments of the present invention, multiple electric heaters are evenly distributed in the hot water tank.

[0021] In some embodiments of the present invention, a thermometer is connected to the hot water tank.

[0022] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0023] When the double-cone rotary vacuum dryer needs to be cooled, close the hot water inlet valve, hot water outlet valve and circulation pump, open the cooling water inlet valve and cooling water outlet valve to replace the hot water in the jacket with cold water to improve the cooling efficiency. At the same time, since the cold water in the circulating water input pipe and the circulating water return pipe is flowing, the cold water in the jacket is also flowing, which can take away the heat and further improve the cooling efficiency.

[0024] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of a cooling device for a double-cone rotary vacuum dryer and the structure of the double-cone rotary vacuum dryer.

[0027] icon:

[0028] 11-hot water tank, 111-electric heating, 112-thermometer, 12-hot water inlet pipe, 121-circulating pump, 122-hot water inlet valve, 13-hot water outlet pipe, 131-hot water outlet valve,

[0029] 21-circulating water input pipe, 22-circulating water return pipe,

[0030] 31-cooling water inlet pipe, 311-cooling water inlet valve, 32-cooling water outlet pipe, 321-cooling water outlet valve,

[0031] 41-water supply pipe, 42-water supply valve,

[0032] 51- buffer tank, 52- drain valve,

[0033] 6- double cone rotary vacuum dryer, 621- inlet of jacket, 62- outlet of jacket. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example

[0037] See also Figure 1 This embodiment provides a cooling device for a double-cone rotary vacuum dryer 6, including a hot water circulation mechanism, a circulating water cooling mechanism and a conversion mechanism.

[0038] The hot water circulation mechanism includes a hot water tank 11 , a hot water inlet pipe 12 and a hot water outlet pipe 13 .

[0039] The hot water tank 11 is used to store hot water. In this embodiment, preferably, electric heaters 111 are evenly distributed in the hot water tank 11, the hot water tank 11 has its own heating function, and the hot water tank 11 is connected to a thermometer 112. When the thermometer 112 detects that the water temperature is lower than a preset temperature, the matching control system enables the electric heater 111 to work, so that the water temperature in the hot water tank 11 meets the requirements. In other embodiments, the hot water tank 11 may also not have a heating function, and an external hot water supply method is used.

[0040] One end of the hot water inlet pipe 12 is connected to the outlet of the hot water tank 11 through a circulating pump 121, and the other end is connected to the inlet 621 of the jacket. The jacket is a part of the existing double cone rotary vacuum dryer 6. A hot water inlet valve 122 is provided on the hot water inlet pipe 12.

[0041] One end of the hot water outlet pipe 13 is connected to the outlet 62 of the jacket, and the other end is connected to the inlet of the hot water tank 11. The hot water outlet pipe 13 is provided with a hot water outlet valve 131.

[0042] After opening the hot water inlet valve 122, the hot water outlet valve 131 and the circulating pump 121, the hot water in the hot water tank 11 enters the jacket to keep warm. The same hot water tank 11 can be connected to the jackets of multiple double-cone rotary vacuum dryers 6. In this embodiment, each jacket can be inlet and outlet at the same time.

[0043] The circulating water cooling mechanism includes a circulating water input pipe 21 and a circulating water return pipe 22 connected to each other. In a specific implementation scenario, the circulating water input pipe 21 and the circulating water return pipe 22 are shared by different equipment in the workshop.

[0044] The conversion mechanism includes a cooling water inlet pipe 31 and a cooling water outlet pipe 32 .

[0045] One end of the cooling water inlet pipe 31 is connected to the circulating water input pipe 21, and the other end is connected to the hot water inlet pipe 12 and the inlet of the jacket through a tee. A cooling water inlet valve 311 is provided on the cooling water inlet pipe 31.

[0046] One end of the cooling water outlet pipe 32 is connected to the circulating water return pipe 22, and the other end is connected to the hot water outlet pipe 13 and the outlet 62 of the jacket through a tee. A cooling water outlet valve 321 is provided on the cooling water outlet pipe 32.

[0047] When the double-cone rotary vacuum dryer 6 needs to be cooled, the hot water inlet valve 122, the hot water outlet valve 131 and the circulating pump 121 are closed, and the cooling water inlet valve 311 and the cooling water outlet valve 321 are opened to replace the hot water in the jacket with cold water to improve the cooling efficiency. At the same time, since the cold water in the circulating water input pipe 21 and the circulating water return pipe 22 is flowing, the cold water in the jacket is also flowing, which can take away the heat and further improve the cooling efficiency. Example

[0048] This embodiment is a further improvement made on the basis of Embodiment 1.

[0049] See also Figure 1 In this embodiment, the cooling device for the double-cone rotary vacuum dryer 6 also includes a water supply pipe 41, one end of the water supply pipe 41 is connected to the cooling water outlet pipe 32, and the other end is connected to the hot water outlet pipe 13, and a water supply valve 42 is provided on the water supply pipe 41.

[0050] After the hot water in the jacket is replaced by cold water, the water level in the hot water tank 11 decreases. In order to restore the water level in the hot water tank 11, the water replenishment valve 42 can be opened. After the water level in the hot water tank 11 is restored, the water replenishment valve 42 is closed. When the water temperature in the hot water tank 11 reaches the preset temperature, the cooling water inlet valve 311 and the cooling water outlet valve 321 can be closed, and the hot water inlet valve 122, the hot water outlet valve 131 and the circulation pump 121 can be reopened to replace the cold water in the jacket with hot water for heat preservation of the double-cone rotary vacuum dryer 6.

[0051] This embodiment can reduce the water consumption in the hot water tank 11 to save water resources. Example

[0052] This embodiment is a further improvement made on the basis of Embodiment 2.

[0053] See also Figure 1 In this embodiment, the cooling device for the double-cone rotary vacuum dryer 6 also includes a buffer box 51 arranged on the path where the water supply pipe 41 is located, the outlet of the buffer box 51 is connected to the inlet of the hot water tank 11, and a drain valve 52 is arranged between the outlet of the buffer box 51 and the inlet of the hot water tank 11.

[0054] When the water replenishment valve 42 is opened to restore the water level in the hot water tank 11, the drain valve 52 can be closed to temporarily store the cold water in the buffer tank 51. When all the double-cone rotary vacuum dryers 6 no longer need to be kept warm, the drain valve 52 is opened to replenish the water level in the hot water tank 11.

[0055] This embodiment is applicable to the situation where the working states of the double-cone rotary vacuum dryers 6 are not synchronized (the insulation and cooling requirements are not synchronized), so as to avoid the situation where cold water is passed into the hot water tank when a double-cone rotary vacuum dryer 6 is still in the insulation state, thereby increasing the energy consumption of the electric heater 111.

[0056] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling device for a double-cone rotary vacuum dryer, characterized in that: It includes a hot water circulation mechanism, a circulating water cooling mechanism and a conversion mechanism; The hot water circulation mechanism comprises a hot water tank, a hot water inlet pipe and a hot water outlet pipe; The hot water tank is used to store hot water; One end of the hot water inlet pipe is connected to the outlet of the hot water tank through a circulation pump, and the other end is connected to the inlet of the jacket of the double-cone rotary vacuum dryer; One end of the hot water outlet pipe is connected to the outlet of the jacket, and the other end is connected to the inlet of the hot water tank; a hot water outlet valve is provided on the hot water outlet pipe; The circulating water cooling mechanism comprises a circulating water input pipe and a circulating water return pipe connected to each other; The conversion mechanism includes a cooling water inlet pipe and a cooling water outlet pipe; One end of the cooling water inlet pipe is connected to the circulating water input pipe, and the other end is connected to the inlet of the jacket; a cooling water inlet valve is provided on the cooling water inlet pipe; One end of the cooling water outlet pipe is connected to the circulating water return pipe, and the other end is connected to the outlet of the jacket; a cooling water outlet valve is arranged on the cooling water outlet pipe.

2. The cooling device for a double-cone rotary vacuum dryer according to claim 1, characterized in that: It also includes a water supply pipe, one end of which is connected to the cooling water outlet pipe, and the other end is connected to the hot water outlet pipe, and a water supply valve is arranged on the water supply pipe.

3. The cooling device for a double-cone rotary vacuum dryer according to claim 2, characterized in that: It also includes a buffer tank arranged on the path where the water supply pipeline is located, the outlet of the buffer tank is connected to the inlet of the hot water tank, and a drain valve is arranged between the outlet of the buffer tank and the inlet of the hot water tank.

4. The cooling device for a double-cone rotary vacuum dryer according to claim 1, characterized in that: The cooling water inlet pipe is connected with the hot water inlet pipe and the inlet of the jacket through a tee.

5. The cooling device for a double-cone rotary vacuum dryer according to claim 1, characterized in that: The cooling water outlet pipe is connected with the hot water outlet pipe and the outlet of the jacket through a tee.

6. The cooling device for a double-cone rotary vacuum dryer according to claim 1, characterized in that: The hot water tank is provided with electric heating.

7. The cooling device for a double-cone rotary vacuum dryer according to claim 6, characterized in that: The plurality of electric heaters are evenly distributed in the hot water tank.

8. The cooling device for a double-cone rotary vacuum dryer according to claim 6, characterized in that: The hot water tank is connected with a thermometer.

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