CN210963999U

CN210963999U - Novel titanium-molybdenum-nickel tower device for butanone oxime

Info

Publication number: CN210963999U
Application number: CN201921989726.7U
Authority: CN
Inventors: 林英; 岳志刚; 王秋文
Original assignee: Shenyang Paisi Titanium Equipment Co ltd
Current assignee: Shenyang Paisi Titanium Equipment Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-10
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a novel titanium molybdenum nickel tower device for butanone oxime, which comprises a skirt, a tower body, a tower tray, a collector, a filler, a distributor, wherein the skirt is arranged at the bottom, the tower body is fixedly arranged above the skirt, and the tower tray is arranged inside the tower body; the collector is arranged in the inner wall of the upper part of the tower body, and a filler, a distributor, a backflow spraying device and a pipe orifice are sequentially arranged above the collector, wherein the pipe orifice comprises a tower kettle product outlet, a heat source inlet, a mixed liquid inlet, a tower top backflow port and a tower top gas phase outlet; the utility model has the advantages that: the gas flow of the tray guiding hole is consistent with the liquid flow direction, so that the tray guiding hole has a certain pushing effect on the liquid flow, the liquid level gradient is favorably reduced, a good gas-liquid contact condition is formed, stable flow between two phases is converted into a turbulent flow state due to the change of the section shape of the guiding area, the mass and heat transfer effects are enhanced, and the pushing effect of the gas on the liquid is enhanced.

Description

Novel titanium-molybdenum-nickel tower device for butanone oxime

Technical Field

The utility model relates to a chemical industry field, a purification device for chemical products specifically says so.

Background

Butanone oxime is generated by the reaction of butanone and hydroxylamine hydrochloride, or by the reaction of butanone and hydroxylamine sulfate, because the reaction process can not reach an ideal complete reaction state, and other media are added in the reaction process as a catalyst or an intermediate carrier, the butanone oxime obtained by the reaction is a mixed solution containing different impurities, and the mixed solution needs to be purified by using tower equipment.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model discloses a tower tray device that reaches purification effect when can increase the purification reaction.

The specific technical scheme is as follows:

the utility model provides a novel titanium molybdenum nickel tower device for butanone oxime, includes skirt, the tower body, the tower tray, the collector, packs, the distributor, backward flow spray set and mouth of pipe, and concrete structure is as follows:

the skirt is arranged at the bottom, the tower body is fixedly arranged above the skirt, and a tower tray is arranged inside the tower body; the collector is arranged in the inner wall of the upper part of the tower body, and the filler, the distributor and the backflow spraying device are sequentially arranged above the collector;

the pipe orifice comprises a tower kettle product outlet, a heat source inlet, a mixed liquid inlet, a tower top reflux opening and a tower top gas phase outlet; one end of a tower kettle product outlet is arranged on the wall body of the skirt stand, and the other end of the tower kettle product outlet is arranged at the bottom of the tower body; the heat source inlet is arranged on the side wall of the middle section of the tower body; the mixed liquid inlet is sequentially arranged on the side wall of the tower body from top to bottom; the nozzle further comprises the tray, and the tray is arranged between each mixed liquid inlet; the tower top reflux port is arranged on the reflux spraying device and is used for collecting the gas-phase medium and then refluxing again; the tower top gas phase outlet is arranged at the top end of the tower body;

the tray comprises an area A, an area B and an area C, wherein the area A consists of a liquid receiving plate and a downcomer; the partition plates are transversely arranged on the central axis of the tray, and the areas B and C comprise guide holes, sieve holes and arc-shaped guide plates; the sieve holes are uniformly arranged in the areas B and C, and the guide holes are arranged at the edges of the areas B and C; the guide hole is provided with a flow guide part which is in a tooth shape, namely, V-shaped grooves are uniformly formed on the upper surface and the lower surface of the flow guide part;

the tray is divided into an odd tray and an even tray, the odd tray and the even tray have the same structure, and the difference is that a B area, a C area and the B area and the C area of the odd tray are symmetrical about the turnover of the partition plate.

The height from the heat source inlet to the skirt is smaller than the height from the lowest position of the mixed liquid inlet to the skirt.

The guide holes are arranged in the area B and the area C along the inner ring of the tray, and the guide holes are arranged in the area C at an oblique angle with the horizontal line.

The utility model discloses further disclose an use above-mentioned device to butanone oxime's purification method, mix liquid including the butanone oxime, include following step:

the mixed liquid containing the butanone oxime flows into the upper part of the tray through the mixed liquid inlet, and the mixed liquid flows downwards layer by layer along the tray and the downcomer;

gas-phase medium is introduced into a heat source inlet and runs from bottom to top, and gas-liquid two phases are contacted on a tower tray and perform mass and heat transfer between the gas-liquid two phases;

the liquefied liquid and the mixed liquid flow downwards together, and finally flow out through a product outlet, the liquid meeting the purity K value serves as a final product, and the liquid less than the purity K flows into a heat source inlet again after being thermally evaporated by a reboiler;

and (3) separating the gas after heat exchange from the mixed liquid, then operating upwards, carrying out liquefaction and concentration reaction in the filler, wherein the liquefied liquid meets the purity K value and flows out from a gas phase outlet at the top of the tower to be the final product, and the liquid with the purity K less than the purity K flows into the tower through a reflux port at the top of the tower to be recycled.

The utility model has the advantages that: the gas flow of the tray guiding hole is consistent with the liquid flow direction, so that the tray guiding hole has a certain pushing effect on the liquid flow, the liquid level gradient is favorably reduced, a good gas-liquid contact condition is formed, stable flow between two phases is converted into a turbulent flow state due to the change of the section shape of the guiding area, the mass and heat transfer effects are enhanced, and the pushing effect of the gas on the liquid is enhanced.

Drawings

FIG. 1 shows a configuration of a pilot hole;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of an odd tray configuration;

FIG. 4 is a schematic diagram of an even tray configuration;

fig. 5 is a front view of the tray.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a novel titanium molybdenum nickel tower device for butanone oxime, comprising a skirt 1, a tower body 2, a tower tray 3, a collector 4, a filler 5, a distributor 6, a reflux spray device 7 and a pipe orifice, the concrete structure is as follows:

the skirt support 1 is arranged at the bottom, the tower body 2 is fixedly arranged above the skirt support 1, and the tower body is internally provided with a tower tray 3; the collector 4 is arranged in the inner wall of the upper part of the tower body, and a filler 5, a distributor 6 and a backflow spraying device 7 are sequentially arranged above the collector;

the pipe orifice comprises a tower bottom product outlet N1, a heat source inlet N2, mixed liquid inlets N3, N4, N8 and N9, a tower top reflux inlet N5 and a tower top gas phase outlet N6; one end of a tower kettle product outlet N1 is arranged on the wall body of the skirt, and the other end is arranged at the bottom of the tower body 2; the heat source inlet N2 is arranged on the side wall of the middle section of the tower body 2; the mixed liquid inlets N3, N4, N8 and N9 are sequentially arranged on the side wall of the tower body 2 from top to bottom; said nozzle further comprising said tray 3, tray 3 being disposed between each mixed liquor inlet N3, N4, N8, N9; the tower top reflux port N5 is arranged on the reflux spray device 7 and is used for collecting the gas-phase medium and then refluxing again; the overhead gas phase outlet N6 is provided at the top end of the tower 2;

the tray comprises a zone A, a zone B and a zone C, wherein the zone A consists of a liquid receiving plate 8 and a downcomer 9; the partition plate 10 is transversely arranged on the central axis of the tray, and the areas B and C comprise guide holes 11, sieve holes 12 and arc-shaped guide plates 13; the sieve holes 12 are uniformly arranged in the areas B and C, and the guide holes are arranged at the edges of the areas B and C; the guide hole 11 is provided with a flow guide part 1101, the flow guide part 1101 is in a tooth shape, namely, the upper surface and the lower surface of the flow guide part are uniformly provided with V-shaped grooves 1101A, when gas-liquid two phases flow through a region, the two phases are converted into a turbulent flow state from a steady flow due to the change of the section shape of the guide region, so that the mass and heat transfer effects are enhanced, meanwhile, the pushing effect of gas on liquid is enhanced, the liquid level gradient is further reduced, and the pressure drop is reduced.

As shown in fig. 3 and 4, the trays are divided into an odd tray and an even tray, and the odd tray and the even tray have the same structure, except that the area B, the area C and the area B and the area C of the even tray of the odd tray are symmetrically inverted with respect to the partition plate 10, so that the purpose of changing the rotation direction increases the reaction time when the mixed liquid flows to the next tray through the downcomer.

The height of the heat source inlet N2 from the skirt is smaller than the height of the lowest part of the mixed liquid inlet from the skirt.

a gas-phase medium is introduced into a heat source inlet N2 to run from bottom to top, and gas-liquid two phases are contacted on a tray and perform mass and heat transfer between the gas-liquid two phases;

the liquefied liquid and the mixed liquid flow downwards together, and finally flow out through a product outlet N1, the liquid meeting the purity K value is taken as a final product, and the liquid less than the purity K is thermally evaporated through a reboiler and then flows into a heat source inlet N2 again;

and (3) separating the gas after heat exchange from the mixed liquid, then operating upwards, carrying out liquefaction and concentration reaction in the filler, wherein the liquefied liquid meets the purity K value and flows out from a gas phase outlet N6 at the top of the tower to be the final product, and the liquid with the purity K is recycled into the tower through a reflux inlet N5 at the top of the tower.

The purity K value is the purity value of the butanone oxime, and when the K is more than or equal to 98 percent, the final product can be regarded.

The reboiler may be a commercially available product such as model D2 of the hexi-glauca petrochemical plant ltd.

Claims

1. A novel titanium molybdenum nickel tower device for butanone oxime, its characterized in that: including skirt, tower body, tower tray, collector, filler, distributor, backward flow spray set and mouth of pipe, concrete structure is as follows:

the pipe orifice comprises a tower kettle product outlet, a heat source inlet, a mixed liquid inlet, a tower top reflux opening and a tower top gas phase outlet; one end of a tower kettle product outlet is arranged on the wall body of the skirt stand, and the other end of the tower kettle product outlet is arranged at the bottom of the tower body; the heat source inlet is arranged on the side wall of the middle section of the tower body; the mixed liquid inlet is sequentially arranged on the side wall of the tower body from top to bottom; the nozzle further comprises the tray, and the tray is arranged between each mixed liquid inlet; the tower top reflux port is arranged on the reflux spraying device; the tower top gas phase outlet is arranged at the top end of the tower body;

the tray comprises an area A, an area B and an area C, wherein the area A consists of a liquid receiving plate and a downcomer; the partition plates are transversely arranged on the central axis of the tray, and the areas B and C comprise guide holes, sieve holes and arc-shaped guide plates; the sieve holes are uniformly arranged in the areas B and C, and the guide holes are arranged at the edges of the areas B and C; the guiding hole is provided with a flow guiding part which is in a tooth shape, namely V-shaped grooves are uniformly formed in the upper surface and the lower surface of the flow guiding part.

2. The novel titanium molybdenum nickel tower device for butanone oxime as claimed in claim 1, characterized in that: the tray is divided into an odd tray and an even tray, the odd tray and the even tray have the same structure, and the difference is that the area B and the area C of the odd tray and the area B and the area C of the even tray are symmetrical about the turnover of the partition plate.

3. The novel titanium molybdenum nickel tower device for butanone oxime as claimed in claim 1, characterized in that: the height from the heat source inlet to the skirt is smaller than the height from the lowest position of the mixed liquid inlet to the skirt.

4. The novel titanium molybdenum nickel tower device for butanone oxime as claimed in claim 1, characterized in that: the guide holes are arranged in the area B and the area C along the inner ring of the tray, and the guide holes are arranged in the area C at an oblique angle with the horizontal line.