Biodiesel by-product glycerol recovery device

Abstract

The utility model relates to the technical field of biodiesel production, and particularly discloses a biodiesel byproduct glycerol recovery device, which is characterized in that an electromagnetic coil for generating a high-frequency alternating magnetic field is fixedly arranged in a recovery separation barrel, and heating rods for heating mixed liquid are uniformly and fixedly arranged in the recovery separation barrel; a waste liquid condensation cone used for cooling high-temperature gas is fixedly installed in the condensation box. After the electromagnetic coil is electrified, a changing magnetic field is formed in the recycling and separating barrel, at the moment, a plurality of heating rods can generate eddy current in the magnetic field, due to the fact that the heating rods have certain resistance, the heating rods can rapidly emit heat under the action of the eddy current, the heating rods can heat mixed liquid located on the periphery, and the heating effect of the heating rods is improved. And the uniformly distributed heating rods directly heat in the mixed liquid, so that the heating speed is increased, the heating is more uniform, and the effect of improving the recovery efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to biodiesel production technical field, especially a kind of biodiesel byproduct glycerol recovery device. BACKGROUND

[0002] In biodiesel production, it is crucial to effectively recover biodiesel byproduct glycerol; in practical applications, biodiesel byproduct glycerol recovery device usually needs the following technologies:

[0003] 1. Separation mechanism, such as centrifugal separator, membrane separation device, etc., which can preliminarily separate glycerol from complex mixtures.

[0004] 2. Purification mechanism, such as rectifying column, which purifies the preliminarily separated glycerol.

[0005] 3. Heating mechanism, such as steam heating device, which provides appropriate heat to maintain temperature conditions during the recovery process and ensures recovery efficiency.

[0006] Existing glycerol recovery devices usually purify glycerol with substandard purity again through rectifying column after preliminary separation, i.e. using electric heating wire or flame to heat the storage barrel containing glycerol mixture, taking advantage of the higher boiling point of glycerol to evaporate other substances with lower boiling points and leave glycerol with higher boiling point.

[0007] However, during the implementation of the above technical solution, at least the following technical problems are found: glycerol and impurities form a water body composed of a mixture inside the separation device; existing recovery devices can only heat the water body from the outside to the inside; due to the low thermal conductivity of glycerol, heating is slow; and heating from the outside to the inside gradually raises the temperature of the water body from the outside to the inside, making it difficult to evenly heat the mixture, thus reducing recovery efficiency. INVENTION CONTENTS

[0008] To overcome the shortcomings of the prior art, the utility model provides a biodiesel byproduct glycerol recovery device, which solves the problem of glycerol and impurities forming a water body composed of a mixture inside the separation device; existing recovery devices can only heat the water body from the outside to the inside; due to the low thermal conductivity of glycerol, heating is slow; and heating from the outside to the inside gradually raises the temperature of the water body from the outside to the inside, making it difficult to evenly heat the mixture, thus reducing recovery efficiency.

[0009] To achieve the above purposes, the utility model is implemented by the following technical solutions:

[0010] The utility model provides a kind of biodiesel byproduct glycerol recovery device, including recovery separation bucket, the inside fixed mounting of recovery separation bucket is used for the electromagnetic coil for generating high-frequency alternating magnetic field, the inside fixed mounting of recovery separation bucket is uniformly used for the heating rod for heating mixed solution, the side end of recovery separation bucket is fixedly installed with feeding pipe, the inside screw thread of feeding pipe is installed with the filter screen cylinder for filtering impurities, the top of recovery separation bucket is fixedly installed with waste liquid confluence taper, the top of waste liquid confluence taper is fixedly installed with condensing box, the inside fixed mounting of condensing box is with waste liquid condensing taper for cooling high-temperature gas, recovery separation bucket is quartz material, and glycerol outlet is set in the bottom of recovery separation bucket, heating rod is nickel-iron alloy material, and waste liquid condensing taper is aluminum nitride ceramic.

[0011] Preferably: waste liquid confluence taper is set with confluence groove for confluence waste liquid.

[0012] Preferably: the bottom of waste liquid confluence taper is fixedly installed with waste liquid guide pipe for discharging waste liquid, and waste liquid guide pipe penetrates recovery separation bucket and communicates with outside.

[0013] Preferably: the top of condensing box is set with liquid injection port for injecting cooling liquid, and liquid injection port is connected with liquid delivery pipeline of refrigeration mechanism.

[0014] Preferably: both ends of condensing box are symmetrically set with backflow port for cooling liquid backflow, and backflow port is connected with backflow pipeline of refrigeration mechanism.

[0015] Compared with prior art, the utility model has the following beneficial effects:

[0016] I. Feeding mechanism will send mixed solution containing glycerol into feeding pipe, and then into recovery separation bucket, in the process, solid impurities in mixed solution will be filtered by filter screen cylinder, when mixed solution is injected into the inside of recovery separation bucket, electromagnetic coil is energized, electromagnetic coil will form a changing magnetic field in the inside of recovery separation bucket after being energized, at this time, multiple heating rods will generate eddy current in magnetic field, when eddy current flows in the inside of heating rod, heating rod will quickly heat under the action of eddy current because heating rod has certain resistance, heating heating rod will heat mixed solution located in the periphery, and evenly distributed heating rod heats in the inside of mixed solution, which not only improves heating speed, but also makes heating more uniform, to achieve the effect of improving recovery efficiency.

[0017] The evaporated substance will contact the waste liquid converging cone and the waste liquid condensing cone, the refrigeration mechanism will send the cooling liquid into the condensing box, the refrigeration liquid entering the condensing box will flow down along the top end of the waste liquid condensing cone, in the process, the waste liquid condensing cone will be cooled, the high-temperature evaporated substance will contact the low-temperature waste liquid condensing cone, so that the other gaseous substances are condensed into liquid waste liquid, the waste liquid will flow into the converging groove under the wall flow effect, the waste liquid condensing cone can increase the contact area with the evaporated substance, and the waste liquid condensing cone can increase the contact area with the cooling liquid, so that the condensing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings.

[0019] Figure 1 The structure diagram of the recycling separation barrel of the present application is shown in the figure.

[0020] Figure 2 The structure diagram of the recycling separation barrel of the present application is shown in the figure.

[0021] Figure 3 The structure diagram of the heating rod of the present application is shown in the figure.

[0022] Figure 4 The structure diagram of the condensing box of the present application is shown in the figure.

[0023] Figure 5 The structure diagram of the condensing box of the present application is shown in the figure.

[0024] Legend: 1, recycling separation barrel; 2, electromagnetic coil; 3, heating rod; 4, feeding pipe; 5, filter screen cylinder; 6, waste liquid converging cone; 7, waste liquid guide pipe; 8, converging groove; 9, condensing box; 11, waste liquid condensing cone; 12, liquid inlet; 13, backflow port. DETAILED DESCRIPTION

[0025] The embodiment of the present application provides a biodiesel byproduct glycerol recovery device, effectively solves that glycerol and impurities form a water body composed of a mixture in the separation device, the existing recovery device can only heat the water body from outside to inside, because the thermal conductivity of glycerol is low, therefore, heating is slow, and the water body temperature gradually rises from outside to inside, it is difficult to heat the mixture uniformly, therefore, the recovery efficiency is low, the feeding mechanism will send the mixed liquid containing glycerol into the feeding pipe, and then the mixed liquid is sent into the recovery separation barrel, in the process, the solid impurities in the mixed liquid will be filtered by the filter screen cylinder, when the mixed liquid is injected into the recovery separation barrel, the electromagnetic coil is energized, after the electromagnetic coil is energized, a changing magnetic field is formed in the recovery separation barrel, the plurality of heating rods will generate eddy current in the magnetic field, when the eddy current flows in the heating rod, because the heating rod has a certain resistance, therefore, the heating rod will quickly heat under the action of the eddy current, the heating heating rod will heat the mixed liquid around, the uniformly distributed heating rod heats in the mixed liquid, not only improves the heating speed, but also heats more uniformly, achieves the effect that the recovery efficiency is improved, the evaporated substance will contact the waste liquid condensing cone, the refrigeration mechanism will send the cooling liquid into the condensing box, the refrigeration liquid in the condensing box will flow down along the top end of the waste liquid condensing cone, in the process, the waste liquid condensing cone is cooled, the high-temperature evaporated substance will contact the low-temperature waste liquid condensing cone, so that the gasified other substances are condensed into liquid waste liquid again, the waste liquid will flow into the flow groove under the action of the wall flow effect, the waste liquid condensing cone can improve the contact area with the evaporated substance, and the waste liquid condensing cone can improve the contact area with the cooling liquid, achieves the effect that the condensing effect is improved.

[0026] Embodiment

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 indicated, the technical scheme in the embodiment of the present application effectively solves that glycerol and impurities form a water body composed of a mixture in the separation device, the existing recovery device can only heat the water body from outside to inside, because the thermal conductivity of glycerol is low, therefore, heating is slow, and the water body temperature gradually rises from outside to inside, it is difficult to heat the mixture uniformly, therefore, the recovery efficiency is low, the overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a biodiesel byproduct glycerol recovery device, including a recovery separation tank 1. An electromagnetic coil 2 for generating a high-frequency alternating magnetic field is fixedly installed inside the recovery separation tank 1. A heating rod 3 for heating the mixture is uniformly fixedly installed inside the recovery separation tank 1. A feeding pipe 4 is fixedly installed on the side end of the recovery separation tank 1. A filter screen 5 for filtering impurities is installed in the internal thread of the feeding pipe 4.

[0029] The top of the recycling separation tank 1 is fixedly installed with a waste liquid collection cone 6, the top of the waste liquid collection cone 6 is fixedly installed with a condenser 9, and the inside of the condenser 9 is fixedly installed with a waste liquid condenser cone 11 for cooling high-temperature gas. The recycling separation tank 1 is made of quartz, and the bottom of the recycling separation tank 1 is provided with a glycerin outlet. The heating rod 3 is made of nickel-iron alloy.

[0030] The waste liquid condensation cone 11 is made of aluminum nitride ceramic. The waste liquid manifold cone 6 is provided with a manifold 8 for collecting waste liquid. The bottom end of the waste liquid manifold cone 6 is fixedly installed with a waste liquid guide pipe 7 for discharging waste liquid. The top end of the condensation box 9 is provided with a liquid injection port 12 for injecting coolant. The two ends of the condensation box 9 are symmetrically provided with return ports 13 for coolant return.

[0031] Recycling Separation Tank 1: As the main part of the device, it provides space for the entire recycling process. Its quartz material properties ensure the thermal conductivity, high temperature resistance and chemical stability of the device. The glycerin outlet at the bottom facilitates the discharge of the recycled glycerin.

[0032] Electromagnetic coil 2: generates a high-frequency alternating magnetic field, causing eddy currents in the heating rod 3 to generate heat. By connecting to an AC frequency converter, the temperature of the heating rod 3 can be precisely adjusted, providing an energy source for heating the mixture and thus achieving the separation of different substances in the mixture.

[0033] Heating rod 3: Made of nickel-iron alloy, it generates eddy currents in a magnetic field when energized. The heating rod 3, which is evenly distributed inside the recovery and separation tank 1, can quickly and evenly heat the mixture, improve heating efficiency, and promote the subsequent recovery of glycerol.

[0034] Feeding pipe 4: connects the feeding mechanism to the main body of the device, the recovery and separation tank 1, and plays the role of conveying the mixture containing glycerin. At the same time, during the feeding process, it works with the filter screen 5 to perform preliminary filtration of solid impurities in the mixture.

[0035] Filter cylinder 5: Installed inside the feed pipe 4, it is used to filter solid impurities in the mixture to prevent impurities from entering the subsequent recovery process, affecting the purity of glycerin and the normal operation of the device. When there are many impurities in the filter cylinder 5, the filter cylinder 5 can be unscrewed and removed for cleaning.

[0036] Waste liquid flow convergence cone 6: located at the top end of the recovery separation barrel 1, on the one hand, the flow convergence groove 8 is opened for the convergence of waste liquid, so that the waste liquid recondensed after gasification can be collected; on the other hand, the waste liquid flow guide pipe 7 at the bottom end is used to guide the waste liquid out of the device, ensuring the smooth discharge of the waste liquid in the device;

[0037] Waste liquid flow guide pipe 7: installed at the bottom end of the waste liquid flow convergence cone 6, discharging the waste liquid converged in the waste liquid flow convergence cone 6 from the device, preventing the accumulation of waste liquid in the device and affecting the normal progress of the recovery process;

[0038] Convergence groove 8: opened on the waste liquid flow convergence cone 6, as a convergence channel for waste liquid, so that the condensed waste liquid can flow into it under the action of wall flow effect, facilitating subsequent centralized treatment and discharge;

[0039] Condensing box 9: internally installed with a waste liquid condensing cone 11, with a liquid injection port 12 opened at the top end for injecting cooling liquid, and with a reflux port 13 symmetrically opened at both ends for cooling liquid reflux, providing cooling conditions for the waste liquid condensing cone 11 through the circulating flow of cooling liquid therein, so that the high-temperature evaporated substances recondense into liquid waste liquid when cooled;

[0040] Waste liquid condensing cone 11: made of aluminum nitride ceramic material, with good thermal conductivity and corrosion resistance, in the shape of a cone to increase the contact area with evaporated substances and cooling liquid, effectively improving the condensing effect and quickly condensing other gaseous substances into liquid waste liquid.

[0041] Working principle:

[0042] Firstly, connect the feeding pipe 4 with the feeding mechanism, connect the glycerol outlet at the bottom end of the recovery separation barrel 1 with the storage device, connect the liquid injection port 12 with the liquid feeding pipeline of the refrigeration mechanism, connect the reflux port 13 with the reflux pipeline of the refrigeration mechanism, and connect the electromagnetic coil 2 with the AC frequency converter. During use, the feeding mechanism will send the mixed liquid containing glycerol into the feeding pipe 4, and then into the recovery separation barrel 1. In this process, the solid impurities in the mixed liquid will be filtered by the filter screen 5. When the mixed liquid is injected into the recovery separation barrel 1, the electromagnetic coil 2 is energized. After the electromagnetic coil 2 is energized, a changing magnetic field will be formed in the recovery separation barrel 1. At this time, multiple heating rods 3 will generate eddy currents in the magnetic field. When the eddy currents flow in the heating rods 3, the heating rods 3 will quickly heat up due to their electrical resistance. The heated heating rods 3 will heat the mixed liquid around them.

[0043] Second, the mixture of low boiling point below glycerol substances evaporated, evaporated substances will be in contact with the waste liquid through the conical 6 and waste liquid condenser 11, the refrigeration mechanism will be cooled to the condenser 9 into the condenser 9 will be along the top of the waste liquid condenser 11 down in the process will be cooled to the waste liquid condenser 11, high temperature evaporated material will be in contact with the low temperature waste liquid condenser 11, so that the gasification of other substances re-condensed into liquid waste, waste will be under the action of wall flow effect into the flow tank 8, and then by the flow tank 8 to the waste liquid flow pipe 7, and then by the waste liquid flow pipe 7 discharge, so that the recovery of the separation bucket 1 inside only glycerol, complete the recovery of glycerol.

[0044] Finally, it should be noted that: apparently, the above examples are merely for the purpose of clearly illustrating the utility model made, and not limited to the implementation. For those of ordinary skill in the art, on the basis of the above description can also be made other different forms of changes or variations. Here do not need to and can not be exhausted to all the implementation. The obvious changes or variations derived from still within the scope of the utility model.

Claims

1. A biodiesel by-product glycerol recovery device comprising a recovery separation tank (1), characterized in that, The inside of the recycling separation barrel (1) is fixedly installed with an electromagnetic coil (2) for generating high-frequency alternating magnetic field, the inside of the recycling separation barrel (1) is uniformly fixedly installed with a heating rod (3) for heating mixed solution, the side end of the recycling separation barrel (1) is fixedly installed with a feeding pipe (4), the inside of the feeding pipe (4) is screwedly installed with a filter screen cylinder (5) for filtering impurities, the top end of the recycling separation barrel (1) is fixedly installed with a waste liquid confluence taper (6), the top end of the waste liquid confluence taper (6) is fixedly installed with a condensation box (9), and the inside of the condensation box (9) is fixedly installed with a waste liquid condensation taper (11) for cooling high-temperature gas.

2. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, The recycling separation barrel (1) is made of quartz, and a glycerol outlet is formed in the bottom end of the recycling separation barrel (1).

3. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, The heating rod (3) is made of nickel-iron alloy.

4. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, The waste liquid condensation taper (11) is made of aluminum nitride ceramic.

5. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, A confluence groove (8) for confluencing waste liquid is formed in the waste liquid confluence taper (6).

6. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, A waste liquid guide pipe (7) for guiding waste liquid is fixedly installed at the bottom end of the waste liquid confluence taper (6).

7. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, A liquid injection port (12) for injecting cooling liquid is formed in the top end of the condensation box (9).

8. A biodiesel coproduct glycerol recovery apparatus as defined in claim 1, wherein, Symmetrical return ports (13) for the return of cooling liquid are formed at the two ends of the condensation box (9).

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