Extraction device at bottom of rectifying tower

Abstract

The utility model provides an extraction device at the bottom of a rectifying tower. The extraction device comprises a liquid slag receiving channel, a liquid slag separation box and a first valve body, the liquid-slag receiving channel is positioned at the upper part of the liquid-slag separating box; one end of the liquid-slag receiving channel is communicated with the liquid-slag separating box; the liquid slag receiving channel is provided with a first valve body, and the first valve body is communicated with the liquid slag receiving channel; the liquid-slag separation box comprises a box body, a filter plate, a push plate, an air bag, a first air pump, a second air pump, an air passing pipe and an air vent; the filter plate, the push plate, the air bag and the first air pump are all located in the box body, and the filter plate and the push plate are vertically arranged at the two ends in the box body respectively. Through the arrangement of the filter plate, the push plate, the air bag, the first air pump, the second air pump, the air passing pipe and the air vent, liquid slag is fully pressed to the filter plate under the action of controlled air pressure, and the solid-liquid separation process is rapid and thorough. Meanwhile, the liquid discharging pipe and the residue discharging cover arranged on the device can independently discharge separated liquid and solid impurities respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to an extraction device, concretely relates to a rectifying column bottom extraction device, belongs to the technical field of chemical equipment. BACKGROUND

[0002] The rectifying column is a kind of equipment using the relative volatility of each component in liquid mixture to separate, mainly used to separate light component and heavy component in mixture.It is widely used in chemical industry, petroleum refining, pharmaceutical and food industry.

[0003] The utility model discloses a rectifying column of convenient collection waste residue discloses a kind of rectifying column, and it is related to rectifying equipment technical field, including rectifying column body, the bottom of the rectifying column body is provided with liquid residue outlet, the bottom of the liquid residue outlet is fixedly installed with liquid residue separation tank, the inside installation of the liquid residue separation tank is with filter plate, the both sides of the filter plate are fixedly installed with positioning strip, the positioning strip is opened with sliding slot in one side, the inner wall of the both sides of the liquid residue separation tank is fixedly installed with guide rail, the guide rail is slidably connected with sliding slot, the one side of the filter plate is fixedly installed with sealing strip, the one side of the liquid residue separation tank is opened with installation groove, the utility model has the beneficial effects that: through filter plate, positioning strip, sliding slot, guide rail, sealing strip, installation groove, fixed block, pinhole and bolt, after use, filter plate can be removed from the liquid residue separation tank to clean and replace its surface, avoid the situation that waste residue is accumulated on filter plate to affect liquid discharge and waste residue separation. However, the device still mainly relies on gravity to separate liquid residue in actual application, this separation mode has the problem of long time consumption, and separation effect is not ideal, and a large amount of liquid is often still entrained in solid residue, which affects subsequent processing efficiency and resource recycling. UTILITY MODEL CONTENTS

[0004] Based on the above background, the purpose of the utility model is to provide a rectifying column bottom extraction device capable of quickly separating liquid residue and fully separating liquid residue, to solve the problems in the background art.

[0005] In order to realize the above-mentioned utility model purpose, the utility model provides the following technical scheme:

[0006] A rectifying column bottom extraction device, comprising a liquid residue receiving channel, a liquid residue separation tank and a first valve body; the liquid residue receiving channel is located at the upper part of the liquid residue separation tank, and one end of the liquid residue receiving channel is communicated with the liquid residue separation tank; the liquid residue receiving channel is provided with the first valve body, and the first valve body is communicated with the liquid residue receiving channel;

[0007] The liquid residue separation tank comprises a tank body, a filter plate, a push plate, an air bag, a first air pump, a second air pump, a gas pipe and a vent;

[0008] The filter plate, the push plate, the air bag and the first air pump are located inside the box body, the filter plate and the push plate are respectively vertically arranged at two ends inside the box body, the filter plate is connected with the box body, the air bag is arranged between the push plate and the inner wall of the box body, the air bag is connected with the push plate, the air bag is in sliding fit with the box body, the first air pump is arranged on the side of the push plate away from the filter plate, the first air pump is connected with the box body, and the first air pump is communicated with the air bag through a pipe;

[0009] The second air pump is located on one side outside the box body, the air pipe is communicated with one end of the box body adjacent to the filter plate, and the second air pump is communicated with the air pipe.

[0010] The box body is provided with a vent on one end adjacent to the push plate, and the inside of the box body is communicated with the outside of the box body through the vent.

[0011] Preferably, the box body is provided with a liquid discharge pipe and a second valve body, the liquid discharge pipe is located between the filter plate and the air pipe, the liquid discharge pipe is communicated with the bottom of the box body, the liquid discharge pipe is provided with the second valve body, and the second valve body is communicated with the liquid discharge pipe.

[0012] Preferably, the box body is provided with a residue discharge cover, the residue discharge cover is located between the filter plate and the push plate, the residue discharge cover is connected with the box body, and the residue discharge cover has two states of opening and closing relative to the box body.

[0013] Preferably, an electric push rod is arranged between the push plate and the inner wall of the box body, and the push plate is connected with the box body through the electric push rod.

[0014] Preferably, the air pipe is located at the upper portion of the box body.

[0015] Preferably, the box body is provided with a groove, and the groove is located at the upper portion of the liquid discharge pipe.

[0016] Preferably, the residue discharge cover is located at the lower portion of the box body.

[0017] Preferably, a sealing ring is arranged between the residue discharge cover and the box body.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The rectifying tower bottom extraction device of the present application is provided with a filter plate, a push plate, an air bag, a first air pump, a second air pump, an air pipe and a vent, so that liquid residue is fully pressed to the filter plate under the action of controlled air pressure, and the solid-liquid separation process is rapid and complete. Meanwhile, the liquid discharge pipe and the residue discharge cover arranged in the device can independently discharge the separated liquid and solid impurities. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0021] Fig. 1 is a use schematic diagram of the present application;

[0022] Fig. 2 is a liquid slag separation tank structure schematic diagram of the present application;

[0023] Fig. 3 is a position structure schematic diagram of the push plate and the air bag of the present application.

[0024] In the figure: 1, liquid slag receiving channel; 2, liquid slag separation tank; 201, tank body; 202, filter plate; 203, push plate; 204, air bag; 205, first air pump; 206, second air pump; 207, air pipe; 208, air vent; 3, first valve body; 4, liquid discharge pipe; 5, second valve body; 6, slag discharge cover; 7, electric push rod; 8, groove; 9, sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be further described in detail below by specific embodiments and in combination with the drawings. It should be understood that the implementation of the present application is not limited to the following embodiments, and any form of modification and / or change of the present application will fall within the scope of protection of the present application.

[0026] In the present application, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or commonly used in the art. The methods in the following examples are conventional methods in the art, unless otherwise specified. The components or equipment in the following examples are general standard components or components known to those skilled in the art, and their structure and principle can be known to the skilled person through technical manuals or obtained through conventional experimental methods.

[0027] The embodiments of the present application will be described in detail below in combination with the drawings. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0028] As Figs. 1-3As shown, a rectifying tower bottom extraction device includes a liquid residue receiving channel 1, a liquid residue separation tank 2 and a first valve body 3. The liquid residue receiving channel 1 is arranged at the upper portion of the liquid residue separation tank 2, and one end thereof is connected with the liquid residue outlet of the rectifying tower bottom, and the other end thereof is communicated with the liquid residue separation tank 2. The first valve body 3 is arranged on the liquid residue receiving channel 1, and is used for controlling the flow or on-off state of the liquid residue entering the liquid residue separation tank 2.

[0029] The liquid residue separation tank 2 includes a tank body 201, a filter plate 202, a push plate 203, an air bag 204, a first air pump 205, a second air pump 206, a gas passage pipe 207 and a gas vent 208. The filter plate 202, the push plate 203, the air bag 204 and the first air pump 205 are arranged in the tank body 201. The filter plate 202 and the push plate 203 are vertically arranged at opposite ends of the tank body 201. The filter plate 202 is mounted on the tank body 201, and functions as a liquid filter. The push plate 203 is slidable in the tank body 201, and is used for pressing the liquid residue towards the filter plate 202. The air bag 204 is arranged between the push plate 203 and the inner wall of the tank body 201. One side of the air bag 204 is connected with the push plate 203, and the other side thereof is slidably connected with the inner wall of the tank body 201. The first air pump 205 is arranged on the side of the push plate 203 away from the filter plate 202, and is connected with the air bag 204 through a communication pipe. The first air pump 205 is used for inflating the air bag 204, so that the air bag 204 is always in an inflated state, and the push plate 203 is tightly connected with the tank body 201.

[0030] When the liquid residue enters the liquid residue receiving channel 1 from the rectifying tower bottom, and enters the liquid residue separation tank 2 through the first valve body 3, the liquid residue flows into the space region between the filter plate 202 and the push plate 203. First, the second air pump 206 arranged outside the tank body 201 is started. The second air pump 206 draws air from the end of the tank body 201 adjacent to the filter plate 202 through the gas passage pipe 207 connected therewith. Preferably, the gas passage pipe 207 is arranged at the upper portion of the tank body 201, so as to avoid liquid entering the air passage.

[0031] Under the action of the air pressure, the liquid residue is effectively pressed to the surface of the filter plate 202. The liquid part in the liquid residue passes through the filter plate 202 and collects in the region behind the filter plate 202 in the process, and the solid impurities are retained on the surface of the filter plate 202 because they cannot pass through the filter plate 202, so that the solid-liquid separation of the liquid residue is realized. An electric push rod 7 is arranged between the push plate 203 and the inner wall of the tank body 201. The push plate 203 is connected with the tank body 201 through the electric push rod 7. Preferably, the electric push rod 7 is connected with the middle region of the push plate 203. The electric push rod 7 not only guides the push plate 203, but also provides a pushing and pulling force for the push plate 203, so as to assist the push plate 203 to move smoothly along the predetermined track, and avoid the push plate 203 from deviating or being stuck during the movement.

[0032] The drain pipe 4 is located at the bottom of the housing 201 and communicates with the interior of the housing 201. Its position is between the filter plate 202 and the air passage pipe 207, facilitating the collection of liquid that has passed through the filter plate 202 after filtration. Simultaneously, a second valve 5 is installed on the drain pipe 4, communicating with it. The second valve 5 controls the opening and closing of the liquid discharge, ensuring that the housing 201 remains effectively sealed before the liquid is completely separated or discharged, preventing air and liquid leakage from the housing 201.

[0033] To clean the solid impurities on the surface of the filter plate 202, the second air pump 206 is restarted. At this time, the second air pump 206 inflates the housing 201, and under the action of air pressure, the push plate 203 retracts to the side away from the filter plate 202. At the same time, under the action of air disturbance, the solid impurities attached to the filter plate 202 are blown off and fall naturally into the space between the filter plate 202 and the push plate 203.

[0034] The housing 201 is equipped with a slag discharge cover 6, which is located between the filter plate 202 and the push plate 203. Residual solid impurities can be discharged from the housing 201 by opening the slag discharge cover 6. Preferably, the slag discharge cover 6 is located at the bottom of the housing 201. During slag cleaning, opening the slag discharge cover 6 allows solid impurities inside the housing 201 to be discharged directly under gravity. A sealing ring 9 is provided between the slag discharge cover 6 and the housing 201 to ensure the airtightness of the housing 201.

[0035] During this process, the vent 208 continuously adjusts the gas balance between the push plate 203 inside the box 201 and the outside of the box 201.

[0036] The implementation principle of the bottom extraction device of the distillation column of this utility model is as follows:

[0037] Liquid sludge from the bottom of the distillation column enters the liquid sludge separation box 2 through the liquid sludge receiving channel 1. The liquid sludge first flows into the space between the filter plate 202 and the pusher plate 203. The second air pump 206 and the electric pusher rod 7 are started. The second air pump 206 draws air outward, and at the same time, the electric pusher rod 7 extends. At this time, under the action of air pressure and the electric pusher rod 7, the pusher plate 203 will drive the liquid sludge to move and squeeze towards one side of the filter plate 202, so that the liquid part of the liquid sludge slowly passes through the filter plate 202 and enters the area behind it, while solid impurities are intercepted because they cannot pass through the filter plate 202, thus achieving liquid sludge separation.

[0038] The separated liquid portion will flow into the groove 8 located behind the filter plate 202.

[0039] After ensuring that no liquid can be squeezed out, the second air pump 206 switches to inflate the box 201, and the electric push rod 7 is retracted. Under the action of air pressure and the electric push rod 7, the push plate 203 retreats away from the filter plate 202, and the solid impurities adhering to the surface of the filter plate 202 are blown off to the bottom of the box 201 by air flow disturbance. At this time, the solid impurities are concentrated and accumulated between the filter plate 202 and the push plate 203.

[0040] When liquid and solid impurities need to be discharged, it is ensured that the push plate 203 has retreated to the original position, and the liquid and solid impurities can be discharged from the box 201 through the second valve body 5 and the slag discharge cover 6, respectively.

[0041] The principles and implementation modes of the present application are described by using specific examples in the present application. The above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A rectifier bottom extraction apparatus characterized by: The rectification tower bottom extraction device comprises a liquid residue receiving channel (1), a liquid residue separation tank (2) and a first valve body (3); the liquid residue receiving channel (1) is located at the upper portion of the liquid residue separation tank (2), and one end of the liquid residue receiving channel (1) is communicated with the liquid residue separation tank (2); the liquid residue receiving channel (1) is provided with the first valve body (3), and the first valve body (3) is communicated with the liquid residue receiving channel (1); The liquid residue separation tank (2) comprises a tank body (201), a filter plate (202), a push plate (203), an air bag (204), a first air pump (205), a second air pump (206), a gas passing pipe (207) and a vent (208); The filter plate (202), the push plate (203), the air bag (204) and the first air pump (205) are all located inside the tank body (201), the filter plate (202) and the push plate (203) are respectively vertically arranged at two ends inside the tank body (201); the filter plate (202) is connected with the tank body (201); the air bag (204) is arranged between the push plate (203) and the inner wall of the tank body (201), the air bag (204) is connected with the push plate (203), the air bag (204) is in sliding fit with the tank body (201); the first air pump (205) is arranged on the side of the push plate (203) away from the filter plate (202), the first air pump (205) is connected with the tank body (201), and the first air pump (205) is communicated with the air bag (204); The second air pump (206) is located on one side outside the tank body (201), the gas passing pipe (207) is communicated with one end of the tank body (201) adjacent to the filter plate (202), and the second air pump (206) is communicated with the gas passing pipe (207); The vent (208) is arranged at one end of the tank body (201) adjacent to the push plate (203), and the inside of the tank body (201) is communicated with the outside of the tank body (201) through the vent (208).

2. The rectifier bottom extract device of claim 1, wherein: The tank body (201) is provided with a liquid discharging pipe (4) and a second valve body (5), the liquid discharging pipe (4) is located between the filter plate (202) and the gas passing pipe (207), the liquid discharging pipe (4) is communicated with the bottom of the tank body (201), the liquid discharging pipe (4) is provided with the second valve body (5), and the second valve body (5) is communicated with the liquid discharging pipe (4).

3. The rectifier bottom extraction apparatus of claim 1, wherein: The tank body (201) is provided with a residue discharging cover (6), the residue discharging cover (6) is located between the filter plate (202) and the push plate (203), the residue discharging cover (6) is connected with the tank body (201), and the residue discharging cover (6) has two states of opening and closing relative to the tank body (201).

4. The rectifier bottom extraction apparatus of claim 1, wherein: An electric push rod (7) is arranged between the push plate (203) and the inner wall of the tank body (201), and the push plate (203) and the tank body (201) are connected through the electric push rod (7).

5. The rectifier bottom extraction apparatus of claim 1, wherein: The gas passing pipe (207) is located at the upper portion of the tank body (201).

6. The rectifier bottom extract device of claim 2, wherein: The tank body (201) is provided with a groove (8), and the groove (8) is located at the upper portion of the liquid discharging pipe (4).

7. The rectifier bottom extract device of claim 3, wherein: The residue discharging cover (6) is located at the lower portion of the tank body (201).

8. The rectifier bottom extract device of claim 7, wherein: A sealing ring (9) is arranged between the slag discharge cover (6) and the box body (201).

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