CN217409776U

CN217409776U - Improved acetanilide rectification vacuum equipment

Info

Publication number: CN217409776U
Application number: CN202220051419.XU
Authority: CN
Inventors: 秦建华; 秦开极; 秦捷; 李志文; 王利敏
Original assignee: Puyang Xinyu Chemical Co ltd
Current assignee: Puyang Xinyu Chemical Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-09-13
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a modified acetanilide rectification vacuum apparatus relates to chemical industry equipment technical field, this modified acetanilide rectification vacuum apparatus, include: rectifying column and tail gas processing case, the vacuum pump is installed at the top of tail gas processing case, the intercommunication has the vacuum suction pipe between vacuum pump and the rectifying column top, tail gas processing storehouse has been seted up to the inside of tail gas processing case, the blast pipe that stretches into tail gas processing storehouse bottom is installed to the gas vent of vacuum pump, the internally mounted in tail gas processing storehouse has the circulation condensation mechanism that is used for carrying out the endothermic condensation to tail gas, the intercommunication has the reinforced mechanism that is used for adding the rectifying column with the raw materials of collecting between one side bottom of tail gas processing case and the rectifying column. The raw materials and the heat contained in the exhaust gas discharged during vacuum pumping can be collected, and the atmospheric pollution caused by the emission of the raw materials to the air along with the exhaust gas is avoided.

Description

Improved acetanilide rectification vacuum equipment

Technical Field

The utility model relates to a chemical industry equipment technical field specifically is a modified acetanilide rectification vacuum apparatus.

Background

The acetanilide rectification tower is vacuum rectification, which is also called vacuum rectification, and is one of the rectification methods, some compounds have very high boiling points, and the boiling of the compounds is preferably carried out by reducing the pressure of the compounds during boiling rather than increasing the temperature, so that once the pressure is reduced to the vapor pressure of the compounds, the compounds begin to boil, and the rectification can be carried out, and the technology is called vacuum distillation.

However, the existing acetanilide rectification vacuum equipment has the following defects that the existing acetanilide rectification vacuum equipment is not convenient for collecting heat and raw materials contained in the exhaust gas discharged during vacuumizing, so that part of the raw materials are discharged into the air along with the exhaust gas to cause atmosphere pollution, and meanwhile, the heat diameter of the exhaust gas is dissipated into the air to cause energy waste.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modified acetanilide rectification vacuum apparatus, the raw materials that contain in the current acetanilide rectification vacuum apparatus who aims at solving among the prior art emission tail gas when evacuation is not convenient for carry out and the heat is collected for partial raw materials cause the atmosphere pollution in discharging the air along with tail gas, and the heat diameter of tail gas gives off the problem that the energy was extravagant in the air simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the improved acetanilide rectification vacuum equipment comprises: rectifying column and tail gas processing case, the vacuum pump is installed at the top of tail gas processing case, the intercommunication has the vacuum suction pipe between vacuum pump and the rectifying column top, tail gas processing storehouse has been seted up to the inside of tail gas processing case, the blast pipe that stretches into tail gas processing storehouse bottom is installed to the gas vent of vacuum pump, the internally mounted in tail gas processing storehouse has the circulation condensation mechanism that is used for carrying out the endothermic condensation to tail gas, the intercommunication has the reinforced mechanism that is used for adding the rectifying column with the raw materials of collecting between one side bottom of tail gas processing case and the rectifying column.

The utility model discloses a further technical scheme does, circulation condensation mechanism is including installing the circulating pump that the tail gas treatment case is close to reinforced mechanism one side top and installing at the inside spiral condenser pipe in tail gas treatment storehouse, the one end that the spiral condenser pipe is located the top is stretched out tail gas treatment storehouse and is linked together with the import of circulating pump.

The utility model discloses a further technical scheme does, reinforced mechanism includes that fixed mounting is close to the feed liquor pump of rectifying column one side bottom at the tail gas treatment case, the intercommunication has the inlet pipe between the liquid outlet of feed liquor pump and the rectifying column, circulation condensation mechanism is still including installing the heating jacket at the inlet pipe outer wall, fixedly connected with inlet tube between the outer wall of the export of circulating pump and heating jacket, the one end that the spiral condenser pipe is located the bottom stretch out the tail gas treatment storehouse and with the heating jacket between the outer wall fixedly connected with drain pipe.

The utility model discloses a further technical scheme does, the heating chamber has been seted up to the inside of heating jacket, inlet tube and drain pipe all are linked together with the heating chamber.

The utility model discloses a further technical scheme does, the inside fixed mounting in tail gas treatment storehouse has and is used for carrying out filterable multilayer filter screen to tail gas, the multilayer filter screen is the activated carbon adsorption filter screen.

The utility model discloses a further technical scheme does, the tail gas discharge pipe who is used for exhaust emission is installed to top one side of tail gas treatment box.

The utility model has the advantages that:

when the device is operated, the vacuum pump vacuumizes the rectifying tower through the vacuum suction pipe, and discharges air containing acetanilide into the tail gas treatment bin through the exhaust pipe, at the moment, the circulating condensation mechanism condenses and cools the tail gas, condensing the acetanilide in the tail gas into liquid, discharging the liquid into a rectifying tower through a charging mechanism for rectification, meanwhile, the circulating condensation mechanism heats the acetanilide in the feeding mechanism by absorbing the heat in the tail gas, thereby avoiding the large temperature difference between the temperature of the acetanilide entering the rectifying tower and the inner part of the rectifying tower, thereby influencing the rectification of the acetanilide, leading the device to collect the raw materials and heat contained in the tail gas discharged during the vacuum pumping, avoiding the atmospheric pollution caused by the discharge of the raw materials into the air along with the tail gas, meanwhile, the heat of the tail gas can be recovered, and the raw materials contained in the collected tail gas are heated, so that the practicability of the device is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the tail gas treatment tank of the present invention.

Fig. 3 is a schematic top sectional view of the raw material heating pipe of the present invention.

In the figure: 1. a rectifying tower; 2. a tail gas treatment tank; 3. a vacuum pump; 4. a vacuum suction pipe; 5. a tail gas treatment bin; 6. a tail gas discharge pipe; 7. an exhaust pipe; 8. a plurality of layers of filter screens; 9. a spiral condenser tube; 10. a liquid inlet pump; 11. a feed pipe; 12. heating a jacket; 13. a heating cavity; 14. a circulation pump; 15. a water inlet pipe; 16. and a water discharge pipe.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1-3, an improved acetanilide rectification vacuum apparatus includes: rectifying column 1 and tail gas treatment case 2, vacuum pump 3 is installed at the top of tail gas treatment case 2, the intercommunication has vacuum suction pipe 4 between vacuum pump 3 and the rectifying column 1 top, tail gas treatment storehouse 5 has been seted up to the inside of tail gas treatment case 2, the blast pipe 7 of stretching into 5 bottoms in tail gas treatment storehouse is installed to the gas vent of vacuum pump 3, the internally mounted in tail gas treatment storehouse 5 has the circulation condensation mechanism that is used for carrying out the heat absorption condensation to tail gas, the intercommunication has the reinforced mechanism that is used for adding the raw materials of collecting into rectifying column 1 between one side bottom of tail gas treatment case 2 and rectifying column 1.

In the embodiment, when the device is operated, the vacuum pump 3 vacuumizes the rectifying tower 1 through the vacuum suction pipe 4, and the air containing acetanilide is discharged into a tail gas treatment bin 5 through an exhaust pipe 7, at the moment, a circulating condensation mechanism carries out condensation and temperature reduction on tail gas, condensing the acetanilide in the tail gas into liquid, discharging the liquid into a rectifying tower 1 through a charging mechanism for rectification, meanwhile, the circulating condensation mechanism heats the acetanilide in the feeding mechanism by absorbing the heat in the tail gas, thereby avoiding the temperature difference between the acetanilide entering the rectifying tower 1 and the inner part of the rectifying tower 1, thereby influencing the rectification of the acetanilide, leading the device to collect the raw materials and heat contained in the discharged tail gas during the vacuum pumping, avoiding the atmospheric pollution caused by the discharge of the raw materials into the air along with the tail gas, meanwhile, the heat of the tail gas can be recovered, and the raw materials contained in the collected tail gas are heated, so that the practicability of the device is improved.

Specifically, circulation condensing mechanism is including installing at tail gas treatment case 2 and being close to circulating pump 14 at reinforced mechanism one side top and installing at the inside spiral condenser pipe 9 in tail gas treatment storehouse 5, and the one end that spiral condenser pipe 9 is located the top stretches out tail gas treatment storehouse 5 and is linked together with circulating pump 14's import.

Specifically, reinforced mechanism includes that fixed mounting is close to the feed liquor pump 10 of rectifying column 1 one side bottom at tail gas treatment case 2, the intercommunication has inlet pipe 11 between the liquid outlet of feed liquor pump 10 and the rectifying column 1, circulation condensation mechanism is still including installing the heating jacket 12 at inlet pipe 11 outer wall, fixedly connected with inlet tube 15 between the export of circulating pump 14 and the outer wall of heating jacket 12, spiral condenser pipe 9 is located the one end of bottom stretch out tail gas treatment storehouse 5 and with the outer wall of heating jacket 12 between fixedly connected with drain pipe 16.

Further, heating chamber 13 has been seted up to the inside of heating jacket 12, and inlet tube 15 all is linked together with heating chamber 13 with drain pipe 16, circulating pump 14 discharges the condensate behind the inside absorption tail gas heat of spiral condenser pipe 9 into heating chamber 13 of heating jacket 12 inside through inlet tube 15, makes it heat the raw materials of inlet tube 11 inside, and the condensate after giving the inside raw materials of inlet tube 11 with the heat transfer simultaneously discharges spiral condenser pipe 9 and carries out the condensation to tail gas through drain pipe 16.

Further, the inside fixed mounting in tail gas treatment storehouse 5 has and is used for carrying out filterable multilayer filter screen 8 to tail gas, and multilayer filter screen 8 is the activated carbon adsorption filter screen.

Further, a tail gas discharge pipe 6 for discharging tail gas is installed on one side of the top of the tail gas treatment box 2.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An improved acetanilide rectification vacuum apparatus comprising: rectifying column (1) and tail gas processing case (2), its characterized in that, vacuum pump (3) are installed at the top of tail gas processing case (2), the intercommunication has vacuum suction pipe (4) between vacuum pump (3) and rectifying column (1) top, tail gas processing case (2) has been seted up to inside and has been handled storehouse (5), blast pipe (7) that stretch into tail gas processing storehouse (5) bottom are installed to the gas vent of vacuum pump (3), the internally mounted of tail gas processing storehouse (5) has the circulation condensation mechanism that is used for carrying out the endothermic condensation to tail gas, the intercommunication has the reinforced mechanism that is used for adding rectifying column (1) with the raw materials of collecting between one side bottom of tail gas processing case (2) and rectifying column (1).

2. The improved acetanilide rectification vacuum equipment as claimed in claim 1, wherein the circulating condensing mechanism comprises a circulating pump (14) arranged at the top of one side of the tail gas treatment tank (2) close to the feeding mechanism and a spiral condensing pipe (9) arranged inside the tail gas treatment bin (5), and one end, located at the top, of the spiral condensing pipe (9) extends out of the tail gas treatment bin (5) and is communicated with an inlet of the circulating pump (14).

3. The improved acetanilide rectification vacuum equipment as claimed in claim 2, wherein the feeding mechanism comprises a liquid inlet pump (10) fixedly installed at the bottom of the tail gas treatment box (2) close to one side of the rectification tower (1), a feeding pipe (11) is communicated between a liquid outlet of the liquid inlet pump (10) and the rectification tower (1), the circulating condensation mechanism further comprises a heating jacket (12) installed on the outer wall of the feeding pipe (11), a water inlet pipe (15) is fixedly connected between an outlet of the circulating pump (14) and the outer wall of the heating jacket (12), and a water outlet pipe (16) is fixedly connected between one end of the spiral condensation pipe (9) located at the bottom, which extends out of the tail gas treatment bin (5) and the outer wall of the heating jacket (12).

4. The improved acetanilide rectification vacuum equipment as recited in claim 3, wherein the heating cavity (13) is formed in the heating jacket (12), and the water inlet pipe (15) and the water outlet pipe (16) are both communicated with the heating cavity (13).

5. The improved acetanilide rectification vacuum equipment as claimed in any one of claims 1 to 4, wherein a plurality of layers of filter screens (8) for filtering tail gas are fixedly installed inside the tail gas treatment bin (5), and the plurality of layers of filter screens (8) are activated carbon adsorption filter screens.

6. The improved acetanilide rectification vacuum equipment as set forth in any one of claims 1-4, characterized in that a tail gas discharge pipe (6) for tail gas discharge is installed at one side of the top of the tail gas treatment tank (2).