Continuous distillation device

Abstract

The utility model discloses a continuous distillation device which comprises a raw material temporary storage tank, a filtering tank, a continuous distillation kettle, a condenser, a receiving tank, a raw material leading-in pump, a raw material leading-out pump, a raw material circulating pump, a thickener, a thinner circulating pump and an intermittent distillation kettle, the filtering tank is connected with the continuous distillation kettle; according to the device, continuous distillation can be carried out through the continuous distillation still, shutdown is not needed, the operation efficiency is higher, the intermittent distillation still is matched, the intermittent distillation still can be shut down, shutdown does not affect work of the continuous distillation still, terminal waste discharge is carried out through the intermittent distillation still, and the device is simple in structure, low in energy consumption and high in productivity.

Description

Technical Field

[0001] The utility model relates to a continuous distillation device. Background Art

[0002] Intermittent distillation, feeding the distillation kettle intermittently. After a certain period of time, the bottom residue of the kettle is pulled away and re-fed. This process is accompanied by the operation of the vacuum unit. Intermittent distillation consumes high energy, has low output, and consumes manpower.

[0003] Based on the above problems, we designed a continuous distillation device that can perform continuous distillation without stopping. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a continuous distillation device which can continuously distill without stopping.

[0005] The utility model is realized by the following technical solutions:

[0006] A continuous distillation device comprises a raw material temporary storage tank, a filter tank, a continuous distillation kettle, a condenser, a receiving tank, a raw material introduction pump, a raw material outlet pump, a raw material circulation pump, a thickener, a thin material circulation pump and an intermittent distillation kettle, wherein the raw material temporary storage tank is connected to the filter tank via the raw material introduction pump, the filter tank is connected to the continuous distillation kettle, the upper end of the continuous distillation kettle is connected to the receiving tank via the condenser, the bottom of the receiving tank is connected to the thickener via the raw material outlet pump, the bottom of the continuous distillation kettle is connected to the thickener via the raw material circulation pump, the thin material produced at the upper part of the thickener is refluxed to the continuous distillation kettle via the thin material circulation pump, the thick material at the bottom of the thickener is introduced into the intermittent distillation kettle, the upper end of the intermittent distillation kettle is connected to the condenser, and the bottom of the intermittent distillation kettle is provided with a waste discharge pipe.

[0007] Preferably, a reboiler is installed between the diluent circulation pump and the continuous distillation kettle.

[0008] Preferably, two or more raw material outlet pumps are arranged in parallel.

[0009] Preferably, two or more raw material circulation pumps are arranged in parallel.

[0010] Preferably, there are two or more diluent circulation pumps connected in parallel.

[0011] The beneficial effects of the utility model are:

[0012] The device can perform continuous distillation through a continuous distillation kettle without stopping, and has higher operating efficiency. It is also equipped with an intermittent distillation kettle, which can be shut down without affecting the operation of the continuous distillation kettle. The terminal waste is discharged through the intermittent distillation kettle. The device has a simple structure, low energy consumption and high production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0016] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0017] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1A continuous distillation device shown in the figure comprises a raw material temporary storage tank 1, a filter tank 2, a continuous distillation kettle 3, a condenser 4, a receiving tank 5, a raw material introduction pump 6, a raw material outlet pump 7, a raw material circulation pump 8, a thickener 9, a thin material circulation pump 10 and an intermittent distillation kettle 11, wherein the raw material temporary storage tank 1 is connected to the filter tank 2 via the raw material introduction pump 6, the filter tank 2 is connected to the continuous distillation kettle 3, the upper end of the continuous distillation kettle 3 is connected to the receiving tank 5 via the condenser 4, the bottom of the receiving tank 5 is connected to the raw material outlet pump 7, the bottom of the continuous distillation kettle 3 is connected to the thickener 9 via the raw material circulation pump 8, the thin material produced at the upper part of the thickener 9 is refluxed to the continuous distillation kettle 3 via the thin material circulation pump 10, the thick material at the bottom of the thickener 9 is introduced into the intermittent distillation kettle 11, the upper end of the intermittent distillation kettle 11 is connected to the condenser 4, and the bottom of the intermittent distillation kettle 11 is provided with a waste pipe 12.

[0021] Here’s how it works:

[0022] The raw material in the raw material temporary storage tank 1 is pumped to the filter tank 2 through the raw material introduction pump 6, and the material filtered by the filter tank 2 is sent to the continuous distillation kettle 3, and distillation is carried out through the continuous distillation kettle 3. The distilled water vapor goes upward into the condenser 4, and the liquid condensed by the condenser 4 is stored in the receiving tank 5, and can be discharged through the raw material discharge pump 7.

[0023] The thick material produced at the bottom of the continuous reactor 3 is pumped into the thickener 9 via the raw material circulation pump 8, and the thin material re-enters the continuous distillation reactor 3 from above for continuous distillation after passing through the thin material circulation pump 10, and the thick material enters the intermittent distillation reactor 11 for intermittent distillation, and the waste is discharged regularly through the waste discharge pipe 12, and the generated steam is condensed by the condenser 4 and then sent to the receiving tank 5.

[0024] See also Figure 1 As shown, a reboiler 13 is installed between the diluent circulation pump 10 and the continuous distillation kettle 3.

[0025] The reboiler 13 is used to heat the thin material, and the heated thin material enters the continuous distillation kettle 3, thereby avoiding lowering the working temperature of the continuous distillation kettle 3 and ensuring that the continuous distillation kettle 3 is always at the optimal internal working temperature.

[0026] See also Figure 1 As shown, two raw material outlet pumps 7 are arranged in parallel.

[0027] Two parallel raw material outlet pumps 7 are used, and when one of them is damaged, the other can continue to be used.

[0028] See also Figure 1 As shown, two raw material circulation pumps 8 are arranged in parallel.

[0029] Two parallel raw material circulation pumps 8 are used, and when one of them is damaged, the other can continue to be used.

[0030] See also Figure 1 As shown, two thin material circulation pumps 10 are connected in parallel.

[0031] Two parallel thin material circulation pumps 10 are used, and when one of them is damaged, the other can continue to be used.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A continuous distillation apparatus, characterized in that: The invention comprises a raw material temporary storage tank, a filter tank, a continuous distillation kettle, a condenser, a receiving tank, a raw material introduction pump, a raw material outlet pump, a raw material circulation pump, a thickener, a thin material circulation pump and an intermittent distillation kettle. The raw material temporary storage tank is connected to the filter tank via the raw material introduction pump, the filter tank is connected to the continuous distillation kettle, the upper end of the continuous distillation kettle is connected to the receiving tank via the condenser, the bottom of the receiving tank is connected to the raw material outlet pump, the bottom of the continuous distillation kettle is connected to the thickener via the raw material circulation pump, the thin material produced at the upper part of the thickener is refluxed to the continuous distillation kettle via the thin material circulation pump, the thick material at the bottom of the thickener is introduced into the intermittent distillation kettle, the upper end of the intermittent distillation kettle is connected to the condenser, and the bottom of the intermittent distillation kettle is provided with a waste discharge pipe.

2. The continuous distillation apparatus according to claim 1, characterized in that: A reboiler is installed between the dilute material circulation pump and the continuous distillation kettle.

3. The continuous distillation apparatus according to claim 1, characterized in that: More than two raw material outlet pumps are arranged in parallel.

4. The continuous distillation apparatus according to claim 1, characterized in that: More than two raw material circulation pumps are arranged in parallel.

5. The continuous distillation apparatus according to claim 1, characterized in that: There are more than two thin material circulation pumps connected in parallel.

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