CN113577815A - Acetaldehyde production equipment and production method - Google Patents
Acetaldehyde production equipment and production method Download PDFInfo
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- CN113577815A CN113577815A CN202110998534.8A CN202110998534A CN113577815A CN 113577815 A CN113577815 A CN 113577815A CN 202110998534 A CN202110998534 A CN 202110998534A CN 113577815 A CN113577815 A CN 113577815A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
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- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
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Abstract
The invention discloses an acetaldehyde production device and a production method in the technical field of acetaldehyde production, which sequentially comprise an ethanol evaporator, an ethanol oxidizer, an acetaldehyde absorption tower, an acetaldehyde collection tank and an acetaldehyde rectifying tower according to a production sequence, wherein an acetaldehyde product is prepared from the acetaldehyde rectifying tower, the production device also comprises a wine tank and an alcohol recovery tank, the wine tank is used for placing raw materials used in the ethanol evaporator, the alcohol recovery tank is used for recovering residual alcohol in the acetaldehyde rectifying tower, the time for stopping the device when the residual material is discharged is replaced and reduced greatly, the alternate rectifying of the material can be realized, the intelligent control is realized, the operation efficiency of the acetaldehyde rectifying tower is greatly improved, the device is stable in the alternate rectifying process, the timed and quantitative addition of the material can be realized, the timed and quantitative discharge of the material can be ensured, and a worker is not required to frequently check that no gasification exists in the device, the labor intensity of workers is reduced, and the manual use is also saved.
Description
Technical Field
The invention relates to the technical field of acetaldehyde production, in particular to acetaldehyde production equipment and a production method.
Background
Acetaldehyde, a aldehyde also known as acetaldehyde, is a colorless, flowable liquid with an irritating odor. Has pungent and ether-like odor, and has fruit flavor, coffee flavor, wine flavor, and green flavor after dilution.
For example, chinese patent application No. CN201310077293.9 is an acetaldehyde production process, which comprises the following specific contents: the dilute acetaldehyde gas after the reaction of the ethanol oxidizer enters an acetaldehyde absorption tower, and dilute acetaldehyde solution is at the bottom of the acetaldehyde absorption tower; feeding the dilute acetaldehyde solution at the bottom of the tower into an acetaldehyde rectifying tower for refining, and feeding the acetaldehyde gas at the top of the acetaldehyde rectifying tower into a tank area as a finished product after condensation; and the waste liquor solution at the bottom of the acetaldehyde rectifying tower enters an alcohol recovery tower for refined recovery. The acetaldehyde production process is a method for preparing acetaldehyde by adopting ethanol oxidation, has simple production process, effectively solves the problems of relatively difficult sources of raw materials and high production cost, has good process flow control and operation performance and high heat utilization rate, and completely recycles waste wine.
For example, chinese patent application No. CN201710018919.7 relates to an acetaldehyde recovery process and an acetaldehyde rectification column, which specifically include: stripping acetaldehyde and 2-methyl-1, 3-dioxolane in the esterification wastewater to form mixed gas of the acetaldehyde, the 2-methyl-1, 3-dioxolane and water vapor, and directly sending the esterification wastewater from which the acetaldehyde and the 2-methyl-1, 3-dioxolane are removed to a sewage treatment station for further biochemical treatment; the mixed gas is condensed and cooled to below 30 ℃, and then is sent to the middle part of an acetaldehyde rectifying tower for acetaldehyde purification, the acetaldehyde rectifying tower is divided into a stripping section at the lower part and a rectifying section at the upper part, the stripping section adopts a plate tower structure, 2-methyl-1, 3-dioxolane is decomposed in the stripping section, ethylene glycol enters an acetaldehyde rectifying tower kettle along with a liquid phase at the top of the acetaldehyde rectifying tower, and an aqueous solution containing 6% of ethylene glycol is formed in the acetaldehyde rectifying tower kettle; the rectification section adopts high-efficiency structured packing, and acetaldehyde is purified in the rectification section; and discharging the purified acetaldehyde from the top of the acetaldehyde rectifying tower, refluxing a part of acetaldehyde and taking a part of acetaldehyde as a product, sampling the acetaldehyde by an acetaldehyde intermediate tank to be qualified, and conveying the acetaldehyde to an acetaldehyde storage tank.
According to the acetaldehyde production equipment and the production method, in the using process, acetaldehyde generates waste liquid when being treated by the rectifying tower, so that the waste liquid in the rectifying tower needs to be discharged at a certain interval, and the rectifying tower is suspended for rectifying until the waste liquid is discharged and closed in the process of discharging the waste liquid of the rectifying tower, so that the time in the liquid discharging process is wasted, the acetaldehyde is difficult to put into production for use, the rectifying efficiency of a device is difficult to effectively improve, and the defects exist in use.
Disclosure of Invention
The invention aims to provide acetaldehyde production equipment and a production method, which aim to solve the problems that in the background technology, acetaldehyde generates waste liquid when being treated by a rectifying tower, so that the waste liquid in the rectifying tower needs to be discharged at a certain end, and the rectifying tower is suspended for rectification until the waste liquid is discharged and closed in the process of discharging the waste liquid in the rectifying tower, so that the time in the liquid discharging process is wasted, the acetaldehyde is difficult to be put into production for use, and the rectification efficiency of the device is difficult to effectively improve.
In order to achieve the purpose, the invention provides the following technical scheme: an acetaldehyde production device sequentially comprises an ethanol evaporator, an ethanol oxidizer, an acetaldehyde absorption tower, an acetaldehyde collection tank and an acetaldehyde rectifying tower according to a production sequence, wherein an acetaldehyde product is prepared from the acetaldehyde rectifying tower;
an air outlet pipe is arranged at the upper end of the acetaldehyde rectifying tower and used for separating acetaldehyde products, a moving mechanism is arranged inside the acetaldehyde rectifying tower, an air outlet mechanism is arranged at the upper end of the moving mechanism, a containing and feeding mechanism is arranged at one side of the acetaldehyde rectifying tower, and a driving mechanism is arranged inside the containing and feeding mechanism;
the moving mechanism comprises a moving frame body, supporting slide bars, balls, a discharging pipe and an electromagnetic valve A, the moving frame body is positioned in the acetaldehyde rectifying tower, the supporting slide bars are fixedly connected to two sides of the acetaldehyde rectifying tower, the balls are embedded into the lower end of the moving frame body in a sliding mode, the discharging pipe is fixedly connected to one side of the moving frame body, and the electromagnetic valve A is arranged in the discharging pipe;
the accommodating and feeding mechanism comprises a frame body, a feeding pipe II is arranged at the upper end of the frame body, an electric flow valve B is arranged inside the feeding pipe II, a pump body is arranged at the position, located at the upper end of the electric flow valve B, inside the feeding pipe II, a pressure sensor A is arranged at one side position inside the frame body, and a through hole is formed in the position, corresponding to the discharge pipe, inside the frame body;
the mechanism of giving vent to anger is including the division board, the equal fixedly connected with drainage baffle of a side of division board and the inner wall of acetaldehyde rectifying column, drainage baffle on a side of division board and the inner wall of acetaldehyde rectifying column is crisscross setting from top to bottom, the spout has been seted up to drainage baffle's up end, a side lower extreme position of division board is provided with pressure sensor B.
Preferably, another side upper end position of acetaldehyde rectifying column is provided with filling tube one the inside of filling tube one is provided with electronic flow valve A, the opposite side lower extreme position of acetaldehyde rectifying column is provided with the delivery pipe, the inside of delivery pipe is provided with the solenoid valve and is B, filling tube two all is connected with the acetaldehyde collection tank with filling tube one.
Preferably, the driving mechanism comprises a motor, two chain wheels, a chain and a screw rod, the motor is arranged on one side face of the frame body, the output shafts of the motor are fixedly connected with the screw rod, the number of the screw rods is two, the chain wheels are fixedly connected to the outer surface of the screw rod, and the screw rod penetrates through the inside of the movable frame body.
Preferably, the control system in the acetaldehyde rectification tower further comprises a controller, a power supply module, a rectification timing unit, a circulation unit, an electric flow valve B timing module, an electric flow valve A timing module, an electromagnetic valve A timer and an electromagnetic valve B timer, wherein the rectification timing unit is used for limiting rectification time for materials in the movable frame body and materials at the bottom end in the acetaldehyde rectification tower, the power supply module provides energy for the device, and the controller is used for controlling the action execution of the whole electric control system;
the timing module of the electric flow valve A is used for limiting the opening time of the electric flow valve A, the timing module of the electric flow valve B is used for limiting the opening time of the electric flow valve B, and the flow opening processes of the electric flow valve A and the electric flow valve B are always kept in a stable state.
Preferably, the motor is controlled by the controller to be opened and closed directly according to the rectification timing unit.
Preferably, the opening time of the solenoid valve a is time-limited by a solenoid valve a timer, and the opening time of the solenoid valve B is time-limited by a solenoid valve B timer.
Preferably, a pump is arranged among the processes of the production sequence of the ethanol evaporator, the ethanol oxidizer, the acetaldehyde absorption tower and the acetaldehyde collection tank.
Preferably, be provided with the passageway between division board and the inner wall of acetaldehyde rectifying column, the inside of acetaldehyde rectifying column is provided with the heater strip, the top position of acetaldehyde rectifying column is provided with the exhaust accent, for the intercommunication setting between exhaust accent and the outlet duct.
A method for producing acetaldehyde comprising the steps of:
s1: alcohol in the wine tank enters the interior of an ethanol evaporator through a pump, and air and preheated qualified feed ethanol are evaporated in the ethanol evaporator;
s2: the mixture enters an ethanol oxidizer, an oxidation bed layer is arranged in the ethanol oxidizer, and a catalyst is paved for material treatment;
s3: then the waste gas enters an acetaldehyde absorption tower, and absorption waste gas is discharged from the top of the acetaldehyde absorption tower;
s4: then the acetaldehyde is collected in an acetaldehyde collection tank to feed an acetaldehyde rectifying tower;
s5: then the material enters an acetaldehyde rectifying tower for rectification and heating treatment, the product is discharged through an air outlet pipe after being gasified, and the residual material in the acetaldehyde rectifying tower is treated and enters an alcohol recovery tank for collection.
Preferably, the treatment process inside the acetaldehyde rectification column is as follows: before use, the interior of the movable frame body and the bottom end of the acetaldehyde rectifying tower are in a material-free state, the controller judges the opening and closing of the first feeding pipe and the second feeding pipe according to the position of the movable frame body, when the movable frame body is located in the frame body and extrudes the pressure sensor A, the controller receives signals to control the opening of the pump body, the electric flow valve B and the electric flow valve A, meanwhile, the electric flow valve B timing module times the opening time of the electric flow valve B, the electric flow valve A timing module times the opening time of the electric flow valve A, and the pump body is opened and closed simultaneously along with the electric flow valve;
meanwhile, the rectification timing unit times the material rectification time at the bottom end of the acetaldehyde rectification tower, after the limited rectification time is reached, the controller receives a signal to operate a motor, the motor drives a lead screw to rotate, the lead screw is in threaded connection with a movable frame body, so that the movable frame body can move from the frame body to the acetaldehyde rectification tower, the movable frame body is in contact movement with a supporting slide bar through a ball after entering the acetaldehyde rectification tower, the moving stability of the movable frame body can be ensured, when the movable frame body is in contact with a partition plate and extrudes a pressure sensor B, the controller receives the signal to control the opening of an electromagnetic valve B, the controller receives the signal to control the discharge of residual materials at the bottom of the acetaldehyde rectification tower through a discharge pipe, meanwhile, the electromagnetic valve B timer times the opening time of the electromagnetic valve B, and after the limited rectification time is reached, the controller controls the closing of the electromagnetic valve B;
meanwhile, the rectification timing module times the rectification time of the materials in the movable frame, after the limited time is reached, the controller controls the motor to rotate reversely, the movable frame is moved to the inside of the frame again, when the movable frame is moved to extrude the pressure sensor A, the controller controls the motor to stop rotating, the discharge pipe corresponds to the perforation on the frame all the time, the electromagnetic valve A is opened, the materials are discharged through the discharge pipe, the timer of the electromagnetic valve A times the opening time of the electromagnetic valve A, the electromagnetic valve A is closed after the time is reached, and then the actions are repeated under the action of the circulation module to form a closed loop.
Compared with the prior art, the invention has the beneficial effects that: the treatment process in the acetaldehyde rectifying tower comprises the following steps: before use, the interior of the movable frame body and the bottom end of the acetaldehyde rectifying tower are in a material-free state, the controller judges the opening and closing of the first feeding pipe and the second feeding pipe according to the position of the movable frame body, when the movable frame body is located in the frame body and extrudes the pressure sensor A, the controller receives signals to control the opening of the pump body, the electric flow valve B and the electric flow valve A, meanwhile, the electric flow valve B timing module times the opening time of the electric flow valve B, the electric flow valve A timing module times the opening time of the electric flow valve A, and the pump body is opened and closed simultaneously along with the electric flow valve;
meanwhile, the rectification timing unit times the material rectification time at the bottom end of the acetaldehyde rectification tower, after the limited rectification time is reached, the controller receives a signal to operate a motor, the motor drives a lead screw to rotate, the lead screw is in threaded connection with a movable frame body, so that the movable frame body can move from the frame body to the acetaldehyde rectification tower, the movable frame body is in contact movement with a supporting slide bar through a ball after entering the acetaldehyde rectification tower, the moving stability of the movable frame body can be ensured, when the movable frame body is in contact with a partition plate and extrudes a pressure sensor B, the controller receives the signal to control the opening of an electromagnetic valve B, the controller receives the signal to control the discharge of residual materials at the bottom of the acetaldehyde rectification tower through a discharge pipe, meanwhile, the electromagnetic valve B timer times the opening time of the electromagnetic valve B, and after the limited rectification time is reached, the controller controls the closing of the electromagnetic valve B;
meanwhile, the rectification timing module times the rectification time of the materials in the movable frame body, after the limited time is reached, the controller controls the motor to rotate reversely, the movable frame body is moved to the inside of the frame body again, when the movable frame body is moved to extrude the pressure sensor A, the controller controls the motor to stop rotating, the discharge pipe corresponds to the perforation on the frame body all the time, then the electromagnetic valve A is opened, the materials are discharged through the discharge pipe, the electromagnetic valve A timer times the opening time of the electromagnetic valve A, after the time is reached, the electromagnetic valve A is closed, the actions are repeated under the action of the circulation module to form a closed loop, the time for stopping the device when the residual materials are discharged can be greatly reduced, the materials can be rectified alternately, the intelligent control is carried out, the operating efficiency of the acetaldehyde rectification tower is greatly improved, and the rectification alternation process of the device is stable, the material can be added at regular time and quantity, the material discharge can be guaranteed at regular time and quantity, the condition that frequent checking devices are internally gasified or not is not required to be carried out by workers, the labor intensity of the workers is reduced, and manual use is saved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of an operating system for an acetaldehyde rectification column in accordance with the present invention;
FIG. 2 is a view showing the internal structure of an acetaldehyde rectification column according to the present invention;
FIG. 3 is a view of the motor and frame combination of the present invention;
FIG. 4 is a view of the combination of the moving frame and the support slide of the present invention;
FIG. 5 is a combination view of the heater wire and the flow directing baffle of the present invention;
FIG. 6 is a flow chart of the apparatus of the present invention;
FIG. 7 is an overall flow block diagram of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an ethanol evaporator; 2. a wine tank; 3. an ethanol oxidizer; 4. an acetaldehyde absorption column; 5. an acetaldehyde collection tank; 6. an acetaldehyde rectification column; 7. an alcohol recovery tank; 8. a pump machine; 9. an air outlet pipe; 91. an exhaust cavity port; 10. a separator plate; 11. heating wires; 101. a drainage baffle; 102. a channel; 103. a chute; 12. a first feeding pipe; 13. an electric flow valve A; 14. moving the frame body; 141. a support runner; 142. a ball bearing; 143. a discharge pipe; 144. an electromagnetic valve A; 15. a pressure sensor B; 16. a discharge pipe; 17. a solenoid valve B; 18. a motor; 181. a frame body; 182. a screw rod; 183. a chain; 184. a sprocket; 19. a feeding pipe II; 191. a pump body; 192. an electric flow valve B; 20. and a pressure sensor A.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention provides an acetaldehyde production apparatus and a production method thereof: an acetaldehyde production device comprises an ethanol evaporator 1, an ethanol oxidizer 3, an acetaldehyde absorption tower 4, an acetaldehyde collection tank 5 and an acetaldehyde rectification tower 6 in sequence according to a production sequence, acetaldehyde products are prepared from the acetaldehyde rectification tower 6, the production device also comprises a wine tank 2 and an alcohol recovery tank 7, the wine tank 2 is used for placing raw materials used in the ethanol evaporator 1, the alcohol recovery tank 7 is used for recovering residual alcohol in the acetaldehyde rectification tower 6, and pump machines 8 are arranged among the ethanol evaporator 1, the ethanol oxidizer 3, the acetaldehyde absorption tower 4 and the acetaldehyde collection tank 5 in the production sequence;
an air outlet pipe 9 is arranged at the upper end of the acetaldehyde rectifying tower 6 and used for separating acetaldehyde products, a moving mechanism is arranged inside the acetaldehyde rectifying tower 6, an air outlet mechanism is arranged at the upper end of the moving mechanism, a containing and feeding mechanism is arranged at one side of the acetaldehyde rectifying tower 6, and a driving mechanism is arranged inside the containing and feeding mechanism;
the moving mechanism comprises a moving frame 14, supporting slide bars 141, balls 142, a discharge pipe 143 and an electromagnetic valve A144, wherein the moving frame 14 is positioned inside the acetaldehyde rectifying tower 6, the supporting slide bars 141 are fixedly connected to two side positions inside the acetaldehyde rectifying tower 6, the balls 142 are embedded in the lower end position inside the moving frame 14 in a sliding manner, the discharge pipe 143 is fixedly connected to one side position inside the moving frame 14, and the electromagnetic valve A144 is arranged inside the discharge pipe 143;
the accommodating and feeding mechanism comprises a frame body 181, a feeding pipe II 19 is arranged at the upper end of the frame body 181, an electric flow valve B192 is arranged inside the feeding pipe II 19, a pump body 191 is arranged at the position, located at the upper end of the electric flow valve B192, inside the feeding pipe II 19, a pressure sensor A20 is arranged at one side position inside the frame body 181, and a through hole is formed in the position, corresponding to the position of the discharge pipe 143, inside the frame body 181;
the air outlet mechanism comprises a partition plate 10, one side surface of the partition plate 10 and the inner wall of the acetaldehyde rectifying tower 6 are fixedly connected with a drainage baffle plate 101, one side surface of the partition plate 10 and the drainage baffle plate 101 on the inner wall of the acetaldehyde rectifying tower 6 are arranged in a vertically staggered manner, the upper end surface of the drainage baffle plate 101 is provided with a chute 103, a channel 102 is arranged between the partition plate 10 and the inner wall of the acetaldehyde rectifying tower 6, a heating wire 11 is arranged inside the acetaldehyde rectifying tower 6, the top end position of the acetaldehyde rectifying tower 6 is provided with an exhaust cavity port 91, the exhaust cavity port 91 is communicated with an air outlet pipe 9, the lower end position of one side surface of the partition plate 10 is provided with a pressure sensor B15, the upper end position of the other side surface of the acetaldehyde rectifying tower 6 is provided with a feeding pipe I12, the inside of the feeding pipe I12 is provided with an electric flow valve A13, the lower end position of the other side of the acetaldehyde rectifying tower 6 is provided with a discharge pipe 16, the inside of the discharge pipe 16 is provided with an electromagnetic valve B17, the second feeding pipe 19 and the first feeding pipe 12 are both connected with the acetaldehyde collection tank 5.
The driving mechanism comprises a motor 18, chain wheels 184, a chain 183 and a screw rod 182, wherein the motor 18 is arranged on one side surface of the frame body 181, the output shafts of the motor 18 are fixedly connected with the screw rod 182, the number of the screw rods 182 is two, the chain wheels 184 are fixedly connected on the outer surface of the screw rod 182, and the screw rod 182 penetrates through the inner part of the movable frame body 14.
The control system in the acetaldehyde rectifying tower 6 further comprises a controller, a power supply module, a rectifying timing unit, a circulating unit, an electric flow valve B timing module, an electric flow valve A timing module, an electromagnetic valve A timer and an electromagnetic valve B timer, wherein the rectifying timing unit is used for limiting rectifying time for materials in the movable frame 14 and materials at the bottom end in the acetaldehyde rectifying tower 6, the power supply module provides energy for the device, and the controller is used for controlling the action execution of the whole electric control system; the timing module of the electric flow valve A is used for limiting the opening time of the electric flow valve A13, the timing module of the electric flow valve B is used for limiting the opening time of the electric flow valve B192, the flow opening processes of the electric flow valve A13 and the electric flow valve B192 are always kept in a stable state, the motor 18 is directly controlled to be opened and closed by the controller according to the rectification timing unit, the opening time of the electromagnetic valve A144 is limited by the timer of the electromagnetic valve A, and the opening time of the electromagnetic valve B17 is limited by the timer of the electromagnetic valve B.
A method for producing acetaldehyde comprising the steps of:
s1: alcohol in the wine tank enters the interior of an ethanol evaporator 1 through a pump 8, and air and preheated qualified feed ethanol are evaporated in the ethanol evaporator;
s2: the mixture enters an ethanol oxidizer, an oxidation bed layer is arranged in the ethanol oxidizer, and a catalyst is paved for material treatment;
s3: then the reaction product enters an acetaldehyde absorption tower 4, and absorption waste gas is discharged from the top of the acetaldehyde absorption tower 4;
s4: then the acetaldehyde is collected in an acetaldehyde collection tank 5 to feed an acetaldehyde rectifying tower 6;
s5: then the material enters an acetaldehyde rectifying tower 6 for rectification and heating treatment, the product is discharged through an air outlet pipe 9 after being gasified, the residual material of the acetaldehyde rectifying tower 6 is treated and enters an alcohol recovery tank 7 for collection, and the treatment process inside the acetaldehyde rectifying tower 6 is as follows: before use, the interior of the movable frame body 14 and the bottom end of the acetaldehyde rectifying tower 6 are in a material-free state, the controller judges the opening and closing of the first feeding pipe 12 and the second feeding pipe 19 according to the position of the movable frame body 14, when the movable frame body 14 is located in the frame body 181 and extrudes the pressure sensor A20, the controller receives signals to control the opening of the pump body 191, the electric flow valve B192 and the electric flow valve A13, the electric flow valve B timing module times the opening time of the electric flow valve B192, the electric flow valve A timing module times the opening time of the electric flow valve A, and the pump body 191 follows the electric flow valve 192 to open and close simultaneously;
meanwhile, the rectification timing unit times the rectification time of the material at the bottom end of the acetaldehyde rectification tower 6, and after reaching the limited rectification time, the controller receives the signal to drive the motor 18 to operate, the motor 18 drives the screw rod 182 to rotate, the screw rod 182 is in threaded connection with the movable frame 14, and then the movable frame 14 can move from the frame 181 to the acetaldehyde rectifying tower 6, after entering the acetaldehyde rectification column 6, the moving frame 14 moves in contact with the supporting slide bars 141 through the balls 142, so that the moving stability of the moving frame 14 can be ensured, when the movable frame 14 contacts the partition plate 10 and presses the pressure sensor B15, the controller receives a signal to control the opening of the electromagnetic valve B17, the residual material at the bottom of the acetaldehyde rectification tower 6 is discharged through the discharge pipe 16, meanwhile, the timer of the electromagnetic valve B times the opening time of the electromagnetic valve B17, and after the limited time is reached, the controller controls the electromagnetic valve B17 to close;
meanwhile, the rectification timing module times the rectification time of the material in the movable frame 14, after the limited time is reached, the controller controls the motor 18 to rotate reversely, the movable frame 14 is moved into the frame 181 again, when the movable frame 14 is moved to extrude the pressure sensor A20, the controller controls the motor 18 to stop rotating, the discharge pipe 143 always corresponds to the perforation on the frame 181, then the electromagnetic valve A144 is opened, the material is discharged through the discharge pipe 143, meanwhile, the electromagnetic valve A timer times the opening time of the electromagnetic valve A144, after the time is reached, the electromagnetic valve A is closed, then the actions are repeated under the action of the circulation module to form a closed loop, the time for stopping the device can be greatly reduced when the residual material is discharged, the material can be rectified alternately, the intelligent control is carried out, and the operation efficiency of the acetaldehyde rectification tower 6 is greatly improved, the device is stable in rectification alternation, the timed and quantitative addition of materials can be realized, the timed and quantitative discharge of the materials can be ensured, a worker does not need to frequently check whether the device is internally gasified or not, the labor intensity of the worker is reduced, the manual use is saved, the limitation on the flow size and the time of the electric flow valve and the time limitation of the electromagnetic valve can be formulated according to actual materials, the addition amount of the materials and the rectification time are determined, the discharge time of excess materials can be further determined, and stable cyclic processing is formed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The acetaldehyde production equipment is characterized by sequentially comprising an ethanol evaporator (1), an ethanol oxidizer (3), an acetaldehyde absorption tower (4), an acetaldehyde collection tank (5) and an acetaldehyde rectification tower (6) according to a production sequence, wherein an acetaldehyde product is prepared in the acetaldehyde rectification tower (6), the production equipment also comprises a wine tank (2) and an alcohol recovery tank (7), the wine tank (2) is used for placing raw materials used in the ethanol evaporator (1), and the alcohol recovery tank (7) is used for recovering residual alcohol in the acetaldehyde rectification tower (6);
an air outlet pipe (9) is arranged at the upper end of the acetaldehyde rectifying tower (6) and used for separating acetaldehyde products, a moving mechanism is arranged inside the acetaldehyde rectifying tower (6), an air outlet mechanism is arranged at the upper end of the moving mechanism, a containing and feeding mechanism is arranged at one side position of the acetaldehyde rectifying tower (6), and a driving mechanism is arranged inside the containing and feeding mechanism;
the moving mechanism comprises a moving frame body (14), a supporting slide bar (141), balls (142), a discharging pipe (143) and an electromagnetic valve A (144), the moving frame body (14) is located inside the acetaldehyde rectifying tower (6), the supporting slide bar (141) is fixedly connected to two side positions inside the acetaldehyde rectifying tower (6), the balls (142) are embedded into the lower end position inside the moving frame body (14) in a sliding mode, the discharging pipe (143) is fixedly connected to one side position inside the moving frame body (14), and the electromagnetic valve A (144) is arranged inside the discharging pipe (143);
the accommodating and feeding mechanism comprises a frame body (181), a feeding pipe II (19) is arranged at the upper end of the frame body (181), an electric flow valve B (192) is arranged inside the feeding pipe II (19), a pump body (191) is arranged at the position, located at the upper end of the electric flow valve B (192), inside the feeding pipe II (19), a pressure sensor A (20) is arranged at one side of the inside of the frame body (181), and a through hole is formed in the inside of the frame body (181) corresponding to the position of the discharge pipe (143);
air outlet mechanism is including division board (10), the equal fixedly connected with drainage baffle (101) of the inner wall of a side of division board (10) and acetaldehyde rectifying column (6), drainage baffle (101) on a side of division board (10) and the inner wall of acetaldehyde rectifying column (6) are crisscross setting from top to bottom, spout (103) have been seted up to the up end of drainage baffle (101), a side lower extreme position of division board (10) is provided with pressure sensor B (15).
2. The acetaldehyde production facility of claim 1, wherein: another side upper end position of acetaldehyde rectifying column (6) is provided with filling tube (12) the inside of filling tube (12) is provided with electric flow valve A (13), the opposite side lower extreme position of acetaldehyde rectifying column (6) is provided with delivery pipe (16), the inside of delivery pipe (16) is provided with the solenoid valve and is B (17), filling tube two (19) all are connected with acetaldehyde collection tank (5) with filling tube (12).
3. The acetaldehyde production facility of claim 1, wherein: the driving mechanism comprises a motor (18), a chain wheel (184), a chain (183) and a screw rod (182), wherein the motor (18) is arranged on one side face of the frame body (181), an output shaft of the motor (18) is fixedly connected with the screw rod (182), the number of the screw rods (182) is two, the chain wheel (184) is fixedly connected to the outer surface of the screw rod (182), and the screw rod (182) penetrates through the inside of the movable frame body (14).
4. An acetaldehyde production facility as claimed in claim 3, wherein: the control system in the acetaldehyde rectifying tower (6) further comprises a controller, a power supply module, a rectifying timing unit, a circulating unit, an electric flow valve B timing module, an electric flow valve A timing module, an electromagnetic valve A timing device and an electromagnetic valve B timing device, wherein the rectifying timing unit is used for limiting rectifying time for materials in the movable frame body (14) and materials at the bottom end in the acetaldehyde rectifying tower (6), the power supply module provides energy for the device, and the controller is used for controlling the action execution of the whole electric control system;
the timing module of the electric flow valve A is used for limiting the opening time of the electric flow valve A (13), the timing module of the electric flow valve B is used for limiting the opening time of the electric flow valve B (192), and the flow opening processes of the electric flow valve A (13) and the electric flow valve B (192) are always kept in a stable state.
5. An acetaldehyde production facility as claimed in claim 4, wherein: the motor (18) is controlled by the controller to be opened and closed directly according to the rectification timing unit.
6. An acetaldehyde production facility as claimed in claim 4, wherein: the opening time of the solenoid valve A (144) is time-limited by a solenoid valve A timer, and the opening time of the solenoid valve B (17) is time-limited by a solenoid valve B timer.
7. The acetaldehyde production facility of claim 1, wherein: and pump machines (8) are arranged among the processes of the production sequence of the ethanol evaporator (1), the ethanol oxidizer (3), the acetaldehyde absorption tower (4) and the acetaldehyde collection tank (5).
8. The acetaldehyde production facility of claim 1, wherein: be provided with passageway (102) between the inner wall of division board (10) and acetaldehyde rectifying column (6), the inside of acetaldehyde rectifying column (6) is provided with heater strip (11), the top position of acetaldehyde rectifying column (6) is provided with exhaust chamber mouth (91), be the intercommunication setting between exhaust chamber mouth (91) and outlet duct (9).
9. A method for producing acetaldehyde, comprising: the method comprises the following steps:
s1: alcohol in the wine tank enters the interior of an ethanol evaporator (1) through a pump (8), and air and preheated qualified feed ethanol are evaporated in the ethanol evaporator;
s2: the mixture enters an ethanol oxidizer, an oxidation bed layer is arranged in the ethanol oxidizer, and a catalyst is paved for material treatment;
s3: then the reaction product enters an acetaldehyde absorption tower (4), and absorption waste gas is discharged from the top of the acetaldehyde absorption tower (4);
s4: then the acetaldehyde is collected in an acetaldehyde collection tank (5) to feed an acetaldehyde rectifying tower (6);
s5: then the material enters an acetaldehyde rectifying tower (6) for rectification and heating treatment, the product is discharged through an air outlet pipe (9) after being gasified, and the residual material in the acetaldehyde rectifying tower (6) is treated and enters an alcohol recovery tank (7) for collection.
10. The method of claim 9, wherein: the treatment process inside the acetaldehyde rectifying tower (6) comprises the following steps: before the device is used, the interior of a movable frame body (14) and the bottom end of an acetaldehyde rectifying tower (6) are in a material-free state, a controller judges the opening and closing of a first feeding pipe (12) and a second feeding pipe (19) through the position of the movable frame body (14), when the movable frame body (14) is located in the frame body (181) and extrudes a pressure sensor A (20), the controller receives signals to control a pump body (191), an electric flow valve B (192) and an electric flow valve A (13) to be opened, meanwhile, an electric flow valve B timing module times the opening time of the electric flow valve B (192), the electric flow valve A timing module times the opening time of the electric flow valve A, and the pump body (191) is opened and closed simultaneously along with the electric flow valve (192);
meanwhile, the rectification timing unit times the material rectification time at the bottom end of the acetaldehyde rectification tower (6), after the limited rectification time is reached, the controller receives a signal to operate the motor (18), the motor (18) drives the screw rod (182) to rotate, the screw rod (182) is in threaded connection with the movable frame body (14), so that the movable frame body (14) can move into the acetaldehyde rectification tower (6) from the frame body (181), the movable frame body (14) is in contact movement with the supporting slide bar (141) through the ball (142) after entering the acetaldehyde rectification tower (6), when the movable frame body (14) is in contact with the partition plate (10) and extrudes the pressure sensor B (15), the controller receives the signal to control the opening of the electromagnetic valve B (17), the residual material at the bottom of the acetaldehyde rectification tower (6) is discharged through the discharge pipe (16), and the electromagnetic valve B timer times the opening time of the electromagnetic valve B (17), after the limited time is reached, the controller controls the electromagnetic valve B (17) to close;
meanwhile, the rectification timing module times the rectification time of the material in the movable frame body (14), after the limited time is reached, the controller controls the motor (18) to rotate reversely, the movable frame body (14) is moved into the frame body (181) again, when the movable frame body (14) moves to extrude the pressure sensor A (20), the controller controls the motor (18) to stop rotating, the discharge pipe (143) corresponds to the through hole in the frame body (181) all the time, then the electromagnetic valve A (144) is opened, discharge is carried out through the discharge pipe (143), meanwhile, the electromagnetic valve A timer times the opening time of the electromagnetic valve A (144), after the time is reached, the electromagnetic valve A is closed, and then the above actions are repeated under the action of the circulation module to form a closed loop.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242259A (en) * | 1924-10-31 | 1926-04-15 | Evaporation Procedes Prache & | An improved evaporating process and apparatus therefor |
| CN1149553A (en) * | 1995-06-16 | 1997-05-14 | 埃卡·诺贝尔公司 | Method for evaporating technological waste water |
| DE19860598A1 (en) * | 1998-12-29 | 2000-07-06 | Basf Ag | Device for carrying out distillation and heterogeneously catalyzed reactions |
| CN101687751A (en) * | 2007-06-26 | 2010-03-31 | 巴斯夫欧洲公司 | Continuous method for manufacturing neral in pure or enriched form |
| CN103113201A (en) * | 2013-03-12 | 2013-05-22 | 江苏凯茂石化科技有限公司 | Production process of acetaldehyde |
| CN111437620A (en) * | 2020-04-24 | 2020-07-24 | 山东瀚文仪器仪表有限公司 | Distillation plant with ration adds reagent function |
-
2021
- 2021-08-27 CN CN202110998534.8A patent/CN113577815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242259A (en) * | 1924-10-31 | 1926-04-15 | Evaporation Procedes Prache & | An improved evaporating process and apparatus therefor |
| CN1149553A (en) * | 1995-06-16 | 1997-05-14 | 埃卡·诺贝尔公司 | Method for evaporating technological waste water |
| DE19860598A1 (en) * | 1998-12-29 | 2000-07-06 | Basf Ag | Device for carrying out distillation and heterogeneously catalyzed reactions |
| CN101687751A (en) * | 2007-06-26 | 2010-03-31 | 巴斯夫欧洲公司 | Continuous method for manufacturing neral in pure or enriched form |
| CN103113201A (en) * | 2013-03-12 | 2013-05-22 | 江苏凯茂石化科技有限公司 | Production process of acetaldehyde |
| CN111437620A (en) * | 2020-04-24 | 2020-07-24 | 山东瀚文仪器仪表有限公司 | Distillation plant with ration adds reagent function |
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| CN113577815B (en) | 2022-05-03 |
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Denomination of invention: An acetaldehyde production equipment and production method Effective date of registration: 20230106 Granted publication date: 20220503 Pledgee: Bank of Nanjing Co.,Ltd. Lianyungang Branch Pledgor: JIANGSU JINMAOYUAN BIOCHEMICAL ENGINEERING CO.,LTD. Registration number: Y2023980030467 |