Rectification device for recycling alcohol-based waste liquid

Abstract

The utility model relates to the technical field of rectification equipment, and discloses a rectification device for alcohol-based waste liquid recovery treatment, which comprises a rectification box, an exhaust pipe and a feed pipe are arranged at the top of the rectification box, a discharge pipe is connected to the bottom of the rectification box, a transversely placed hollow shaft is rotatably arranged in the rectification box, and a guide pipe is connected to the center of the hollow shaft in a penetrating manner. The end, away from the hollow shaft, of the guide pipe is connected with the scraper, multiple sets of liquid drainage holes are formed in the hollow shaft, a liquid collecting groove is formed in the side face of the scraper, the guide pipe is communicated with the liquid collecting groove, the end, close to the hollow shaft, of the guide pipe is provided with a one-way control assembly, and multiple stirring rods are arranged between the scraper and the hollow shaft. According to the utility model, the influence on internal heat conduction and rectification effects due to long-time deposition of material slag and high-boiling-point waste liquid at the bottom of the distillation device is avoided, and the interior of the liquid is stirred by the plurality of stirring rods, so that the interior is uniformly heated; meanwhile, the material slag is collected in the hollow shaft, so that the material slag is prevented from being adhered to the distillation device.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectification equipment technical field especially relates to a rectification device for alcohol base waste liquid recycling treatment. BACKGROUND

[0002] In the chemical industry, the recycling of alcohol base waste liquid mainly reflects the resourceful treatment of ethanol, methanol and other waste, and the alcohol base waste liquid contains a large amount of ethanol and methanol. The recovery of alcohol base needs to use a rectification device. The principle of the rectification device is to use the different volatility of each component in the mixture, that is, the different vapor pressure of each component at the same temperature, to transfer the light component (low boiling point substance) in the liquid phase to the gas phase, and transfer the heavy component (high boiling point substance) in the gas phase to the liquid phase, so as to realize the purpose of separation.

[0003] The alcohol base waste liquid contains part of residue, and when the rectification operation is carried out, the residue and high boiling point waste liquid are deposited at the bottom of the distillation device. Because the liquid is heated for a long time, the residue is easy to stick to the distillation device, which increases the workload of subsequent cleaning, and the deposition of waste liquid and residue is not conducive to the heat conduction of the internal liquid, which reduces the distillation efficiency.

[0004] Therefore, those skilled in the art need to develop a rectification device for alcohol base waste liquid recycling treatment. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a rectification device for alcohol base waste liquid recycling treatment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a rectification device for alcohol base waste liquid recycling treatment, comprising a rectification tank, an exhaust pipe and a feed pipe are arranged at the top of the rectification tank, a discharge pipe is connected to the bottom of the rectification tank, a hollow shaft is rotatably arranged in the rectification tank, a conduit is connected through the center of the hollow shaft, one end of the conduit away from the hollow shaft is connected with a scraper, a plurality of liquid discharge holes are formed in the hollow shaft, a liquid collecting groove is formed in the side of the scraper, the conduit and the liquid collecting groove are in communication with each other, a one-way control assembly is arranged at one end of the conduit close to the hollow shaft, and a plurality of stirring rods are arranged between the scraper and the hollow shaft.

[0007] Preferably, the one-way control assembly comprises a baffle rotatably connected with the inner wall of the conduit, the baffle and the conduit are connected through a hinge, a stop block is connected to the side of the inner wall of the conduit away from the hinge, and the stop block is located between the baffle and the scraper and close to one side of the baffle.

[0008] Preferably, the right end of the hollow shaft is sealed and the left end is provided with an opening, the left end of the hollow shaft extends out of the rectifying tank and is sealingly connected with the plug, and a sealing ring is arranged at the connection between the left end of the hollow shaft and the rectifying tank.

[0009] Preferably, a motor is fixedly connected to the outer side wall of the rectifying tank, the output end of the motor extends into the rectifying tank and is connected with the hollow shaft, and a sealing ring is arranged on the output end of the motor.

[0010] Preferably, a scraping piece is arranged at the right end of the inner part of the hollow shaft, and the scraping piece and the plug are connected through a connecting rod.

[0011] Preferably, the number of the guide pipes and the scraping plates is multiple, the guide pipes and the scraping plates are one-to-one corresponding and are uniformly distributed on the hollow shaft, and the liquid collecting groove of each scraping plate opens outward when the scraping plate rotates to the highest point.

[0012] Preferably, an inclined surface is arranged on the side close to the guide pipe of each liquid collecting groove, and the lowest point of the inclined surface is the connection position of the scraping plate and the guide pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the material slag and the bottom waste liquid are scraped up by the scraping plate and are collected by the liquid collecting groove, so that the material slag and the high-boiling-point waste liquid are prevented from being deposited at the bottom of the distillation device for a long time, the internal heat conduction and the rectification effect are affected, the liquid inside is stirred by the multiple stirring rods, the internal heating is ensured to be uniform, and the material slag is collected in the hollow shaft, and is prevented from being adhered to the distillation device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the front view structure sectional view of the utility model;

[0017] Figure 3 It is the connecting structure view of the scraping plate and the guide pipe of the utility model;

[0018] Figure 4 It is the connecting sectional view of the hollow shaft, the guide pipe and the scraping plate of the utility model;

[0019] Figure 5 It is the internal structure sectional view of the hollow shaft of the utility model.

[0020] In the drawing: 1-rectifying tank; 2-exhaust pipe; 3-feeding pipe; 4-discharging pipe; 5-motor; 6-hollow shaft; 61-plug; 62-scraping piece; 63-connecting rod; 7-guide pipe; 8-scraping plate; 9-stirring rod; 10-baffle; 11-stop block. DETAILED DESCRIPTION

[0021] The utility model is clearly described below in combination with the drawings and specific embodiments in the embodiments of the utility model, the description herein is only used to explain the utility model, but not as a limitation on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts, any modification, equivalent replacement, improvement etc. should be included in the protection scope of the utility model.

[0022] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-5 The utility model provides a kind of rectifying column for alcohol-based waste liquid recovery treatment, including rectifying tank 1, the top of rectifying tank 1 is equipped with exhaust pipe 2 and feed pipe 3, the bottom of rectifying tank 1 is connected with discharge pipe 4, control valve is equipped on exhaust pipe 2, feed pipe 3 and discharge pipe 4, hollow shaft 6 is rotatably arranged in the inside of rectifying tank 1, hollow shaft 6 is connected with the center of pipe 7, pipe 7 is connected with scraper 8 at the end away from hollow shaft 6, a plurality of liquid discharge holes are formed in hollow shaft 6, liquid collection groove is formed in the side of scraper 8, pipe 7 and liquid collection groove are interconnected, one-way control assembly is arranged at the end of pipe 7 close to hollow shaft 6, a plurality of stirring rods 9 are arranged between scraper 8 and hollow shaft 6, the number of pipe 7 and scraper 8 is multiple, pipe 7 and scraper 8 are one-to-one corresponding and evenly distributed on hollow shaft 6, when each scraper 8 rotates to the highest point, the opening of liquid collection groove in it is all towards outside, inclined surface is arranged on the side of each liquid collection groove close to pipe 7, and the lowest point of inclined surface is the connection between scraper 8 and pipe 7.

[0025] The rectification tank 1 further comprises a heating assembly and a condensing assembly, the heating assembly is used for heating the liquid inside the rectification tank 1, and the condensing assembly is used for cooling and liquefying the volatilized gas for recovery. Since the heating assembly and the condensing assembly are both conventional technologies in the industry, details are not repeated. For reference, please refer to the ethanol extraction waste liquid ethanol recovery device disclosed in patent No. CN216808468U and the ethanol extraction waste liquid ethanol recovery device disclosed in patent No. CN212712817U.

[0026] Further, the right end of the hollow shaft 6 is sealed and the left end is provided with an opening. The left end of the hollow shaft 6 extends out of the rectification tank 1 and is sealingly connected with the plug 61. The connection between the left end of the hollow shaft 6 and the rectification tank 1 is provided with a sealing ring. The inner right end of the hollow shaft 6 is provided with a scraper 62, and the scraper 62 is connected with the plug 61 through a connecting rod 63.

[0027] When the material residue inside the hollow shaft 6 needs to be cleaned, the plug 61 is only pulled outwards. The plug 61 is connected with the scraper 62 through the connecting rod 63, so as to scrape out the material residue inside.

[0028] Further, the outer side wall of the rectification tank 1 is fixedly connected with the motor 5. The output end of the motor 5 extends into the rectification tank 1 and is connected with the hollow shaft 6. The output end of the motor 5 is sleeved with a sealing ring.

[0029] When the motor 5 drives the scraper 8 to rotate through the hollow shaft 6 and the conduit 7, the end of the scraper 8 away from the conduit 7 is attached to the bottom of the rectification tank 1, so as to scrape up the residue at the bottom.

[0030] Further, the one-way control assembly comprises a baffle 10 rotationally connected with the inner wall of the conduit 7. The baffle 10 is connected with the conduit 7 through a hinge. The inner wall of the conduit 7 away from the hinge is connected with a stop block 11. The stop block 11 is located between the baffle 10 and the scraper 8 and close to one side of the baffle 10.

[0031] The residue and the bottom waste liquid are scraped up by the scraper 8 and collected by the liquid collecting groove. When the scraper 8 rotates to the highest point, it flows into the conduit 7 along the inclined surface of the scraper 8. Due to the action of gravity, the baffle 10 rotates, and then falls into the hollow shaft 6. The liquid flows out through the multiple liquid discharge holes on the hollow shaft 6, and the residue remains in the hollow shaft 6. Since the other side of the baffle 10 is provided with the stop block 11, the baffle 10 can only rotate in one direction, so as to avoid the residue in the hollow shaft 6 from running out. At the same time, the multiple stirring rods 9 stir the liquid inside, so as to ensure uniform heating inside.

[0032] The utility model discloses a working principle: the utility model discloses when using, the staff adds the rectifying tank 1 through the feed pipe 3 to the liquid to be rectified, starts motor 5, and when the scraper 8 is rotated by motor 5 through the hollow shaft 6, the guide pipe 7 drives, the scraper 8 is away from the one end of guide pipe 7 and the bottom of rectifying tank 1 and is pasted together, thereby scraping up the bottom residue, and the residue and bottom waste liquid are scraped up by the scraper 8 and are collected through the liquid collecting groove, when the scraper 8 rotates to the highest point, along the inclined plane of scraper 8 and flows into the guide pipe 7, because the gravity effect drives the baffle 10 to rotate, and then drops to the inside of hollow shaft 6, and the liquid flows out through the multiple groups of liquid discharge holes on the hollow shaft 6, and the residue remains to the inside of hollow shaft 6, because the baffle 10 is equipped with the fender 11 on the other side, therefore the baffle 10 can only rotate unidirectionally, thereby avoiding the residue in the inside of hollow shaft 6 to run out, and multiple stirring rods 9 agitate inside the liquid, guarantee the even heating in the inside.

[0033] The above, only for the preferable specific implementation of the utility model, but the protection scope of the utility model does not limit to this, any skilled in the art technical personnel in the utility model discloses the technical range of the utility model, according to the utility model technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should cover in the protection scope of the utility model.

Claims

1. A rectification device for recovering and processing alcohol-based waste liquid, comprising a rectification tank (1), a gas discharge pipe (2) and a feed pipe (3) are arranged at the top of the rectification tank (1), a discharge pipe (4) is connected to the bottom of the rectification tank (1), characterized in that: The inside of the rectifying box (1) is provided with a transversely placed hollow shaft (6), the center of the hollow shaft (6) is connected with a conduit (7), one end of the conduit (7) away from the hollow shaft (6) is connected with a scraper (8), a plurality of liquid discharge holes are formed in the hollow shaft (6), a liquid collecting groove is formed in the side of the scraper (8), the conduit (7) and the liquid collecting groove are in communication with each other, the conduit (7) is provided with a one-way control assembly at the end close to the hollow shaft (6), and a plurality of stirring rods (9) are arranged between the scraper (8) and the hollow shaft (6).

2. The rectifying device for recovering and treating alcohol-based waste liquid according to claim 1, characterized in that: The one-way control assembly comprises a baffle (10) rotatably connected with the inner wall of the conduit (7), the baffle (10) and the conduit (7) are connected through a hinge, the inner wall of the conduit (7) is connected with a stop block (11) away from the hinge, and the stop block (11) is located between the baffle (10) and the scraper (8) and close to one side of the baffle (10).

3. The rectifying device for recovering and treating alcohol-based waste liquid according to claim 1, characterized in that: The right end of the hollow shaft (6) is sealed, and the left end is provided with an opening, the left end of the hollow shaft (6) extends out of the rectifying box (1) and is sealingly connected with a plug (61), and a sealing ring is arranged at the connection between the left end of the hollow shaft (6) and the rectifying box (1).

4. The rectifying device for recovering and treating alcohol-based waste liquid according to claim 3, characterized in that: The outer wall of the rectifying box (1) is fixedly connected with a motor (5), the output end of the motor (5) extends into the rectifying box (1) and is connected with the hollow shaft (6), and the output end of the motor (5) is provided with a sealing ring.

5. The rectifying device for recovering and treating alcohol-based waste liquid according to claim 4, characterized in that: The right end of the hollow shaft (6) is provided with a scraper blade (62), and the scraper blade (62) and the plug (61) are connected through a connecting rod (63).

6. The rectifying device for recovering and treating alcohol-based waste liquid according to claim 1, characterized in that: The number of the conduit (7) and the scraper (8) is multiple, the conduit (7) and the scraper (8) are one-to-one corresponding and uniformly distributed on the hollow shaft (6), and the liquid collecting groove opening in each scraper (8) is outward when the scraper (8) rotates to the highest point.

7. The rectifying device for recovering alcohol-based waste liquid according to claim 6, characterized in that: The side of each liquid collecting groove close to the conduit (7) is provided with an inclined surface, and the lowest point of the inclined surface is the connection between the scraper (8) and the conduit (7). The side of each liquid collecting groove close to the conduit (7) is provided with an inclined surface, and the lowest point of the inclined surface is the connection between the scraper (8) and the conduit (7).

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