Device for concentrating and recovering nutrients in distiller's waste liquid by membrane separation

Abstract

The utility model belongs to the technical field of vinasse waste liquid, concretely relates to a kind of nutrient substance membrane separation concentration recovery device in vinasse waste liquid, including separator, the liquid outlet of separator is communicated with the one end of conveying pipe, the other end of conveying pipe is communicated with the liquid inlet of concentrator, the liquid outlet of concentrator is communicated with recovery tank;The utility model, electric heating strip is installed on the outer wall of conveying pipe vertical section by first limit strip, second limit strip, first chuck and second chuck, then the plug of electric heating strip is docked with external power supply equipment, along with the temperature of electric heating strip constantly increasing, the heat generated by electric heating strip will be absorbed by conveying pipe at this time, and then the temperature of conveying pipe will increase.Nutrient solution will not be absorbed excessive heat when passing through conveying pipe, so as to guarantee the temperature of nutrient solution entering concentrator, so as to guarantee the use effect of the equipment under cold condition.

Description

Technical Field

[0001] This utility model belongs to the field of technology of distillery waste liquid, specifically relating to a membrane separation, concentration and recovery device for nutrients in distillery waste liquid. Background Technology

[0002] Distillery wastewater is wastewater generated during the brewing process. If directly discharged into the environment, the high concentration of organic matter in this wastewater will consume dissolved oxygen in the water, leading to oxygen deficiency and making it difficult for aquatic organisms to survive. Simultaneously, the pollutants will also cause soil and surface water acidification, increase the risk of soil salinization, and lead to eutrophication of water bodies.

[0003] To prevent environmental damage from direct discharge of distiller's grains waste, current processes involve separating, concentrating, and recovering nutrients from the waste. After separation, most of the nutrients have already been extracted from the waste, so the nutrient solution is transported to a concentrator via a conveyor pipe for further concentration and purification. However, in cold conditions, the temperature of the conveyor pipe can be very low. As the separated nutrient solution passes through the conveyor pipe, it absorbs a significant amount of heat, resulting in a low temperature of the nutrient solution entering the concentrator. To ensure effective concentration, the concentration time is often extended, thus increasing production costs. Utility Model Content

[0004] The purpose of this invention is to provide a membrane separation, concentration, and recovery device for nutrients in distiller's grains waste liquid. This addresses the current process of separating, concentrating, and recovering nutrients from distiller's grains waste liquid to prevent environmental damage from direct discharge. After separation, most of the nutrients in the waste liquid have already been purified, and the nutrient solution is then transported to a concentrator for further concentration and purification via a conveying pipe. However, in cold conditions, the temperature of the conveying pipe can be very low. As the separated nutrient solution passes through the conveying pipe, it absorbs a significant amount of heat, resulting in a low temperature of the nutrient solution entering the concentrator. To ensure effective concentration, the concentration time is often extended, thus increasing production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a membrane separation, concentration and recovery device for nutrients in distiller's grains waste liquid, comprising a separator, wherein the outlet of the separator is connected to one end of a conveying pipe, the other end of the conveying pipe is connected to the inlet of the concentrator, and the outlet of the concentrator is connected to a recovery tank;

[0006] The outer wall of the conveying pipe is spirally wound with an electric heating strip. A first limiting strip and a second limiting strip are symmetrically installed on the outer walls of both sides of the conveying pipe. A set of oblique holes are opened at equal intervals on the first limiting strip and the second limiting strip. When the electric heating strip is spirally wound upward, it passes through the corresponding oblique holes on the first limiting strip and the second limiting strip in sequence.

[0007] In order to ensure that the first and second limiting strips can be fixedly installed on the outer wall of the conveying pipe, as a nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to this utility model, preferably, a first chuck is installed on the outer wall of the upper and lower ends of the first limiting strip, and a second chuck is installed on the outer wall of the upper and lower ends of the second limiting strip. A notch is opened on the inner wall of the first chuck and the second chuck at the horizontal midline, and an inner pad is fixedly installed on the inner wall on both sides of the notch of the first chuck and the second chuck.

[0008] In order to ensure that the first chuck and the second chuck can be confined to the predetermined installation area on the conveying pipe, as a nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to this utility model, preferably, a C-shaped groove is opened on the outer wall of the upper and lower sides of the vertical end of the conveying pipe, and the interior of each groove is engaged with an inner pad on the same side of the first chuck and the second chuck, respectively. The notches on the first chuck and the second chuck are engaged with the outer wall of the first limiting strip and the second limiting strip near the top.

[0009] In order to enable the first chuck and the second chuck to be docked together, as a preferred embodiment of the nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid of this utility model, a plug plate is respectively glued to the outer wall on both sides of the opening end of the first chuck, and a protrusion is integrally installed on the outer wall of the other end of the plug plate. Each set of plug plates and protrusions is interference-fitted into the corresponding socket, and one socket is respectively opened on the outer wall on both sides of the opening of each second chuck.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The heating element is installed on the outer wall of the vertical section of the delivery pipe via a first limiting strip, a second limiting strip, a first chuck, and a second chuck. The plug of the heating element is then connected to an external power supply. As the temperature of the heating element increases, the heat generated is absorbed by the delivery pipe, further increasing its temperature. This prevents excessive heat absorption by the nutrient solution as it passes through the delivery pipe, thus maintaining the temperature of the nutrient solution entering the concentrator. This ensures a longer concentration time in cold conditions, thereby reducing production costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the installation structure of the heating strip, the first limiting strip, and the second limiting strip provided in the embodiments of this application.

[0015] Figure 3 This is a schematic diagram of the first limiting strip structure provided in an embodiment of this application.

[0016] Figure 4 This is a schematic diagram of the conveying pipe structure provided in an embodiment of this application.

[0017] Figure 5 A side view cross-sectional structural diagram of the first chuck and the second chuck provided in the embodiments of this application.

[0018] Figure 6 This is a schematic diagram of the distribution structure of the insert plate and socket provided in the embodiments of this application.

[0019] In the diagram: 1. Separator; 2. Conveying pipe; 21. Slot; 3. Concentrator; 4. Recovery tank; 5. Heating bar; 6. First limiting bar; 61. Inclined hole; 7. Second limiting bar; 8. First chuck; 81. Inner pad; 82. Notch; 83. Insert plate; 84. Raised bar; 9. Second chuck; 91. Insertion port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 The present invention provides the following technical solution: a membrane separation, concentration and recovery device for nutrients in distillers' grains waste liquid, including a separator 1, the discharge port of the separator 1 is connected to one end of a conveying pipe 2, the other end of the conveying pipe 2 is connected to the inlet of a concentrator 3, and the outlet of the concentrator 3 is connected to a recovery tank 4.

[0022] The outer wall of the conveying pipe 2 is spirally wound with an electric heating strip 5. The outer walls on both sides of the conveying pipe 2 are symmetrically equipped with a first limiting strip 6 and a second limiting strip 7. A set of oblique holes 61 are opened at equal intervals on the first limiting strip 6 and the second limiting strip 7. When the electric heating strip 5 spirals upward, it passes through the corresponding oblique holes 61 on the first limiting strip 6 and the second limiting strip 7 in sequence.

[0023] In use, connect the inlet of separator 1 to the outlet of the waste liquor. When the waste liquor enters separator 1, the nutrients in the waste liquor can be separated by separator 1. Then the nutrients enter the concentrator 3 through the conveying pipe 2. The concentrator 3 will further concentrate the nutrients. Finally, the concentrated nutrients are conveyed to the recovery tank 4 for recycling.

[0024] Preferably, a first chuck 8 is installed on the outer wall of the upper and lower ends of the first limiting strip 6, and a second chuck 9 is installed on the outer wall of the upper and lower ends of the second limiting strip 7. A notch 82 is opened on the inner wall of the first chuck 8 and the second chuck 9 at the horizontal midline. An inner pad 81 is fixedly installed on the inner wall on both sides of the notch 82 of the first chuck 8 and the second chuck 9.

[0025] Preferably, a C-shaped slot 21 is provided on the outer wall of the upper and lower sides of the vertical end of the conveying pipe 2, and the interior of each slot 21 is engaged with an inner pad 81 on the same side of the first chuck 8 and the second chuck 9, and the notches 82 on the first chuck 8 and the second chuck 9 are engaged with the outer wall of the first limiting strip 6 and the second limiting strip 7 near the top.

[0026] In practical use, the notches 82 on one side of the first chuck 8 and the second chuck 9 are aligned with the corresponding first limit strip 6 and the second limit strip 7, respectively. The first chuck 8 and the second chuck 9 are moved so that the corresponding notches 82 are engaged with the corresponding first limit strip 6 and the second limit strip 7.

[0027] After docking, the inner pads 81 on the inner walls of the first chuck 8 and the second chuck 9 will also engage with the C-shaped groove 21 on the conveying pipe 2, so that the first chuck 8 and the second chuck 9 can install the first limiting strip 6 and the second limiting strip 7 on the outer wall of the conveying pipe 2.

[0028] After the first limiting strip 6 and the second limiting strip 7 are installed on the conveying pipe 2, the heating strip 5 is wound along the trajectory of the inclined hole 61 on the first limiting strip 6 and the second limiting strip 7. In this way, the heating strip 5 can be wound on the outer wall of the conveying pipe 2 at equal intervals, so that the heating strip 5 can heat the outer wall of the conveying pipe 2 evenly during use.

[0029] Preferably, a plug plate 83 is glued to the outer walls on both sides of the opening end of the first chuck 8. A protrusion 84 is integrally installed on the outer wall of the other end of the plug plate 83. Each set of plug plates 83 and protrusions 84 is interference-fitted into the corresponding socket 91. A socket 91 is opened on the outer wall on both sides of the opening of each second chuck 9.

[0030] When the first chuck 8 and the second chuck 9 are docked, the two insert plates 83 and the protrusions 84 at the open end of the first chuck 8 are respectively docked with the corresponding sockets 91 on the second chuck 9. During the docking process, the insert plates 83 and the protrusions 84 deform to adapt to the sockets 91. When the insert plates 83 and the protrusions 84 are fully installed in the sockets 91, a stable docking structure is formed between the insert plates 83 and the protrusions 84 and the sockets 91, thereby docking the first chuck 8 and the second chuck 9 together.

[0031] In practical use, after separator 1 has separated the nutrients in the lees waste liquid, the nutrient solution will be sent to concentrator 3 through conveyor pipe 2 for concentration. If the temperature on conveyor pipe 2 is low, the temperature of the nutrient solution entering concentrator 3 will be lower, thus affecting the concentration efficiency of concentrator 3. At this time, the following operations can be performed:

[0032] The heating element 5 is installed on the outer wall of the vertical section of the delivery pipe 2 via the first limiting strip 6, the second limiting strip 7, the first chuck 8, and the second chuck 9. Then, the plug of the heating element 5 is connected to an external power supply. As the temperature of the heating element 5 increases, the heat generated by it is absorbed by the delivery pipe 2, further increasing its temperature. This prevents excessive heat absorption by the nutrient solution as it passes through the delivery pipe 2, thus maintaining the temperature of the nutrient solution entering the concentrator 3 and ensuring the device's effectiveness in cold conditions.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A membrane separation, concentration, and recovery device for nutrients in distiller's grains waste liquid, comprising a separator (1), characterized in that, The drain port of the separator (1) is connected to one end of the conveying pipe (2), the other end of the conveying pipe (2) is connected to the inlet of the concentrator (3), and the outlet of the concentrator (3) is connected to the recovery tank (4). The outer wall of the conveying pipe (2) is spirally wound with an electric heating strip (5). The outer walls of both sides of the conveying pipe (2) are symmetrically equipped with a first limiting strip (6) and a second limiting strip (7). A set of oblique holes (61) are opened at equal intervals on the first limiting strip (6) and the second limiting strip (7). When the electric heating strip (5) spirals upward, it passes through the corresponding oblique holes (61) on the first limiting strip (6) and the second limiting strip (7) in sequence.

2. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 1, characterized in that: A first chuck (8) is installed on the outer wall of the upper and lower ends of the first limiting strip (6), and a second chuck (9) is installed on the outer wall of the upper and lower ends of the second limiting strip (7).

3. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 2, characterized in that: A notch (82) is provided on the inner wall at the horizontal midline of the first chuck (8) and the second chuck (9), and an inner pad (81) is fixedly installed on the inner wall on both sides of the notch (82) of the first chuck (8) and the second chuck (9).

4. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 1, characterized in that: A C-shaped slot (21) is provided on the outer wall of the upper and lower sides of the vertical end of the conveying pipe (2), and the interior of each slot (21) is engaged with an inner pad (81) on the same side of the first chuck (8) and the second chuck (9).

5. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 2, characterized in that: The notches (82) on the first chuck (8) and the second chuck (9) respectively engage with the outer walls of the first limiting strip (6) and the second limiting strip (7) near the top.

6. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 2, characterized in that: A plug plate (83) is glued to the outer walls on both sides of the opening end of the first chuck (8), and a protrusion (84) is integrally installed on the outer wall of the other end of the plug plate (83).

7. The nutrient membrane separation, concentration and recovery device for distiller's grains waste liquid according to claim 6, characterized in that: Each set of insert plates (83) and protrusions (84) are interference-fitted into the corresponding sockets (91), and each socket (91) is provided on the outer wall on both sides of the opening of each second chuck (9).

Images