CN211274386U

CN211274386U - Acrylic acid pretreatment device

Info

Publication number: CN211274386U
Application number: CN201922083366.0U
Authority: CN
Inventors: 袁冬玉
Original assignee: Fushun Xinlong Chemical Co ltd
Current assignee: Fushun Xinlong Chemical Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-18
Anticipated expiration: 2029-11-28

Abstract

An acrylic acid pretreatment device comprises a mixing tank and a degassing tank, wherein a vertical center line position in the mixing tank is rotatably connected with a rotating rod through a rotating connecting piece, the surface of the upper part of the rotating rod is fixedly sleeved with an impeller, and the surface of the lower part of the rotating rod is fixedly sleeved with a paddle; the utility model discloses an impeller, acrylic acid advances the pipe, sodium acrylate advances pipe and stirring rake, acrylic acid advances pipe and sodium acrylate advances the pipe, acrylic acid advances pipe and sodium acrylate advances a tub liquid outlet cross-section less, increase acrylic acid and sodium acrylate's liquid discharge pressure, liquid promotes the impeller rotation, impeller pivoted drives the dwang simultaneously and rotates, it rotates to drive the paddle in the dwang pivoted, the paddle rotates the solution in the stirring blending tank, accomplish the stirring and mix, at the stirring in-process motor that does not use, use more energy-concerving and environment-protective, and simultaneously, the paddle stirring has also accelerated the mixing speed, and the mixing efficiency is high.

Description

Acrylic acid pretreatment device

Technical Field

The utility model relates to a chemical production technical field especially relates to an acrylic acid pretreatment device.

Background

Acrylic acid is an important organic synthetic raw material and synthetic resin monomer, which is miscible with water, alcohol, ether and chloroform, is prepared from propylene obtained from an oil refinery, and is mostly used for producing acrylates such as methyl acrylate, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate and the like.

In the process of acrylic acid pretreatment, a sodium acrylate solution is required to be mixed with acrylic acid, the traditional mode is that a motor is used for driving a stirring paddle to stir and mix, electric energy is excessively used, the environment is not protected enough, the name is 201721675150.8, the name is an acrylic acid pretreatment device, in the application, two medicine bins of an acrylic acid medicine bin and a sodium acrylate medicine bin are respectively communicated through a first branch transfusion pipeline and a second branch transfusion pipeline on a reaction solution input mechanism, the transfusion pipelines are communicated with the two branch transfusion pipelines, the tail sections of the transfusion pipelines are gradually inclined outwards, a transfusion outlet of each transfusion pipeline is inserted into a liquid storage cavity of a reaction tank, the reaction solution flows into the reaction tank along the inclined transfusion pipelines, some rotary eddy currents of the reaction solution in the reaction tank flow, the acrylic acid solution and the sodium acrylate solution are uniformly mixed, and the mixed solution of the acrylic acid solution and the sodium acrylate solution is replaced by the existing electric stirring device, the manufacturing cost of the whole machine is reduced, but the reaction tank is of an open structure, acrylic acid has strong pungent smell, the reaction tank cannot be sealed and mixed, a large amount of smell leaks out, the working environment is severe, and workers are easily uncomfortable after being in an environment with the pungent smell for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing: an acrylic acid pretreatment device.

The technical scheme of the utility model: the utility model provides an acrylic acid pretreatment device, includes blending tank and degassing tank, the inside vertical center line position of blending tank rotates through rotating the connecting piece and is connected with the dwang, and dwang upper portion fixed surface has cup jointed the impeller to dwang lower part fixed surface has cup jointed the paddle, blending tank table wall corresponds impeller position through connection and has acrylic acid to advance tub and sodium acrylate and advance the pipe, and acrylic acid advances to manage and advance tub play liquid end off-centre and aim at the impeller, blending tank top cover is equipped with the sealed cowling, and the sealed cowling top surface has the degassing tank through connection of gas-supply pipe through connection.

The inside fixedly connected with lye tank and the active carbon jar of degassing tank, and lye tank and active carbon jar pass through communicating pipe through connections, the gas-supply pipe runs through the lye tank and stretches into inside the lye tank, active carbon jar bottom surface through connections has the blast pipe, and the blast pipe runs through the degassing tank bottom surface and extends to the degassing tank outside.

The mixing tank top surface is located inside through connection of sealed cowling and is connected with the relief valve, and sealed cowling and mixing tank top surface sealing connection.

The bottom surface of the lye tank is connected with a liquid discharge pipe in a through mode, the liquid discharge pipe penetrates through the degassing tank and extends to the outer side of the degassing tank, and the upper surface wall of one side of the lye tank is connected with a liquid inlet pipe in a through mode.

The eccentric angle between the acrylic acid inlet pipe and the sodium acrylate inlet pipe is 15-30 degrees.

The mixing tank, the rotating rod, the rotating connecting piece, the paddle and the impeller are made of acid-resistant materials.

The beneficial effects are that:

1. the utility model discloses an impeller, acrylic acid advance the pipe, sodium acrylate advances pipe and stirring rake, acrylic acid advances pipe and sodium acrylate advances the pipe, acrylic acid advances pipe and sodium acrylate advances a tub liquid outlet cross-section less, increase the liquid pressure of acrylic acid and sodium acrylate, liquid promotes the impeller rotation, the impeller rotates and drives the dwang rotation simultaneously, the dwang rotates and drives the paddle rotation simultaneously, the paddle rotates the solution in the stirring mixing tank, accomplish the stirring and mix, in the stirring process not use the motor, use more energy-concerving and environment-protective, simultaneously, paddle stirring has also accelerated the mixing speed, mixing efficiency is high; 2. the utility model discloses a deaerating box, the gas that flows from the relief valve, in the lye tank in the gas tank is got into through the gas-supply pipe, the alkali solution in the lye tank reacts with the acid that gas contains, acid in the neutralization gas, the pungent smell in the gas is tentatively detached, gas through tentatively removing the flavor gets into the activated carbon tank through communicating pipe, the active carbon has been held in the activated carbon tank, the peculiar smell in the further absorbed gas of active carbon, further get rid of the peculiar smell, the gas of detaching the peculiar smell at last is discharged from the blast pipe, the smell from the relief valve combustion gas has been detached in deaerating box's setting, work environment has been purified, be of value to staff's physical and mental health.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of the present invention;

fig. 3 is a schematic view of the internal structure of the degassing tank of the present invention.

Detailed Description

As shown in fig. 1-2, an acrylic acid pretreatment device comprises a mixing tank 1 and a degassing tank 6, wherein the vertical central line position inside the mixing tank 1 is rotatably connected with a rotating rod 4 through a rotating connecting piece 3, the structure of the rotating connecting piece 3 is similar to that of a rotating disk, which is common and not described herein, an impeller 10 is fixedly sleeved on the upper surface of the rotating rod 4, a plurality of paddles 2 are fixedly sleeved on the lower surface of the rotating rod 4, an acrylic acid inlet pipe 5 and a sodium acrylate inlet pipe 11 are connected through the position of the surface wall of the mixing tank 1 corresponding to the impeller 10, the distance between the liquid outlet ends of the acrylic acid inlet pipe 5 and the sodium acrylate inlet pipe 11 and the outer surface wall of the impeller 10 is not more than 1cm, the pressure of liquid is ensured, the liquid outlet ends of the acrylic acid inlet pipe 5 and the sodium acrylate inlet pipe 11 are eccentrically aligned with the impeller 10, a sealing cover 8 covers the top surface of the mixing tank 1, and the degassing tank, acrylic acid advances pipe 5 and sodium acrylate and advances 11 liquid outlet cross-sections of pipe less, increase acrylic acid and sodium acrylate's play liquid pressure, when going out liquid, liquid promotes impeller 10 and rotates, drive dwang 4 and rotate when impeller 10 rotates, drive 2 rotations of paddle in the dwang 4 pivoted, paddle 2 rotates the solution in the stirring blending tank 1, the completion stirring is mixed, at the stirring in-process not use the motor, use energy-concerving and environment-protective more, and simultaneously, the mixing rate has also been accelerated in 2 stirring of paddle, the mixing efficiency is high.

Preferably, referring to fig. 1 and 3, an alkali liquor tank 64 and an activated carbon tank 62 are fixedly connected inside the degassing tank 6, the alkali liquor tank 64 is of a sealed structure, the alkali liquor tank 64 and the activated carbon tank 62 are in through connection through a communication pipe 61, an alkali solution is stored in the alkali liquor tank 64, activated carbon is stored in the activated carbon tank 62, a gas pipe 7 penetrates through the alkali liquor tank 64 and extends into the alkali liquor tank 64, a gas exhaust pipe 63 is connected through the bottom surface of the activated carbon tank 62, the gas exhaust pipe 63 penetrates through the bottom surface of the degassing tank 6 and extends to the outside of the degassing tank 6, gas enters the alkali liquor tank 64 in the degassing tank 6 through the gas pipe 7, alkali solution in the alkali liquor tank 64 reacts with acid contained in the gas to neutralize the acid in the gas, pungent odor in the gas is preliminarily removed, the preliminarily deodorized gas enters the activated carbon tank 62 through the communication pipe 61, activated carbon is contained in the activated carbon tank 62, and the activated carbon further absorbs peculiar smell in the gas, further remove the peculiar smell, the gas of final removal peculiar smell is discharged from blast pipe 63, and the setting of deaerating box 6 has got rid of the smell of the gas of following mixing tank 1 exhaust, has purified operational environment, is of value to staff's physical and mental health.

Preferably, referring to fig. 1, a pressure relief valve 9 is connected to the top surface of the mixing tank 1 inside the sealing cover 8 in a penetrating manner, the pressure relief valve 9 prevents the risk caused by the excessive pressure inside the mixing tank 1, and the sealing cover 8 is connected to the top surface of the mixing tank 1 in a sealing manner to prevent the gas from leaking from the pressure relief valve 9.

Preferably, referring to fig. 3, a drain pipe is connected to the bottom surface of the lye tank 64 in a penetrating manner, and the drain pipe penetrates through the degassing tank 6 and extends to the outside of the degassing tank 6, and a switch valve is disposed on the surface of the drain pipe on the outside of the degassing tank 6, a liquid inlet pipe is connected to the upper surface wall of one side of the lye tank 64 in a penetrating manner, and a switch valve is also disposed on the surface of the liquid inlet pipe on the outside of the degassing tank 6, the switch valve on the surface of the drain pipe is opened, the aqueous alkali in the lye tank 64 flows out, the switch valve on the surface of the drain pipe is closed, the switch valve on the surface of the liquid inlet pipe is opened, the aqueous alkali is switched.

Preferably, referring to fig. 2, the eccentric angle between the acrylic acid inlet pipe 5 and the sodium acrylate inlet pipe 11 is 15-30 °, so that the liquid ejected from the liquid outlet ends of the acrylic acid inlet pipe 5 and the sodium acrylate inlet pipe 11 can generate thrust on the impeller 10.

Preferably, referring to fig. 1, the mixing tank 1, the rotating rod 4, the rotating connector 3, the paddle 2 and the impeller 10 are made of an acid-resistant material, the acid-resistant material may be ceramic or PVC, and the acrylic acid is prevented from corroding the mixing tank 1, the rotating rod 4, the rotating connector 3, the paddle 2 and the impeller 10 to cause damage, in addition, the discharge pipe is connected to the bottom surface of the mixing tank 1 in a penetrating manner, the structure is common, and redundant description is not repeated herein.

When in use, the device is moved to a proper position, an acrylic acid inlet pipe 5 is communicated with an acrylic acid conveying device, a sodium acrylate inlet pipe 11 is communicated with a sodium acrylate conveying device, the cross sections of liquid outlets of the acrylic acid inlet pipe 5 and the sodium acrylate inlet pipe 11 are smaller, the liquid outlet pressure of acrylic acid and sodium acrylate is increased, when liquid is discharged, liquid pushes an impeller 10 to rotate, the impeller 10 rotates and simultaneously drives a rotating rod 4 to rotate, the rotating rod 4 rotates and simultaneously drives a paddle 2 to rotate, the paddle 2 rotates and stirs the solution in a mixing tank 1 to complete stirring and mixing, a motor is not used in the stirring process, the use is more energy-saving and environment-friendly, meanwhile, the mixing speed is increased by stirring of the paddle 2, the mixing efficiency is high, meanwhile, gas overflows a pressure release valve 9 and enters an alkali liquid tank 64 in a degassing tank 6 through a gas pipe 7, the alkali solution in the alkali tank 64 reacts with acid contained, pungent odor in the gas is preliminarily removed, the gas after preliminary odor removal enters an activated carbon tank 62 through a communicating pipe 61, activated carbon is contained in the activated carbon tank 62, the activated carbon further absorbs peculiar smell in the gas, the peculiar smell is further removed, the gas after the peculiar smell is finally removed is discharged from an exhaust pipe 63, the odor of the gas discharged from a mixing tank 1 is removed by the arrangement of an air removal box 6, the working environment is purified, and the air purification device is beneficial to physical and mental health of workers.

The above, only be the specific implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, according to the present invention and the design of the present invention, the equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an acrylic acid pretreatment device, includes blending tank (1) and deaerating tank (6), its characterized in that: mixing tank (1) inside vertical center line position is rotated through rotating connecting piece (3) and is connected with dwang (4), and dwang (4) upper portion fixed surface cover has connect impeller (10) to dwang (4) lower part fixed surface has cup jointed paddle (2), mixing tank (1) table wall corresponds impeller (10) position through connection and has acrylic acid to advance pipe (5) and sodium acrylate and advance pipe (11), and acrylic acid advances pipe (5) and sodium acrylate and advances pipe (11) play liquid end off-centre and aim at impeller (10), mixing tank (1) top surface cover is equipped with sealed cowling (8), and sealed cowling (8) top surface has degassing tank (6) through gas-supply pipe (7) through connection.

2. The acrylic acid pretreatment device according to claim 1, characterized in that: degassing tank (6) inside fixedly connected with lye tank (64) and active carbon jar (62), and lye tank (64) and active carbon jar (62) are through-connected through communicating pipe (61), and inside gas-supply pipe (7) run through lye tank (64) and stretch into lye tank (64), active carbon jar (62) bottom surface through-connection has blast pipe (63), and blast pipe (63) run through degassing tank (6) bottom surface and extend to the degassing tank (6) outside.

3. The acrylic acid pretreatment device according to claim 1, characterized in that: the top surface of the mixing tank (1) is positioned inside the sealing cover (8) and is connected with a pressure release valve (9) in a through mode, and the sealing cover (8) is connected with the top surface of the mixing tank (1) in a sealing mode.

4. The acrylic acid pretreatment device according to claim 2, characterized in that: the bottom surface of the lye tank (64) is connected with a liquid discharge pipe in a penetrating way, the liquid discharge pipe penetrates through the degassing tank (6) and extends to the outer side of the degassing tank (6), and the upper surface wall of one side of the lye tank (64) is connected with a liquid inlet pipe in a penetrating way.

5. The acrylic acid pretreatment device according to claim 1, characterized in that: the eccentric angle between the acrylic acid inlet pipe (5) and the sodium acrylate inlet pipe (11) is 15-30 degrees.

6. The acrylic acid pretreatment device according to claim 1, characterized in that: the mixing tank (1), the rotating rod (4), the rotating connecting piece (3), the paddle (2) and the impeller (10) are made of acid-resistant materials.