CN207237328U - The rectifying separator of benzene chloride production - Google Patents

Abstract

The utility model discloses the rectifying separator of benzene chloride production,Including rectifying tower body,The rectifying tower body bottom is provided with slag-drip opening,The gas-guide tube and drain pipe for stretching into inside are provided with rectifying tower body bottom sidewall,At least two groups of heat exchange rectifying components are disposed with inside rectifying column body above gas-guide tube from bottom to up,Heat exchange rectifying component includes the coil pipe that fitting is fixed on wall in rectifying column body,Upper fixed disk,Lower fixed disk and filler,The coil pipe upper end is connected with being pierced by the heat conduction outlet pipe of rectifying column body sidewall,Coil pipe lower end is connected with being pierced by the heat conduction inlet pipe of rectifying column body sidewall,Fixed disk surrounding is fixed in the rectifying column body above coil pipe on wall,The lower fixed disk surrounding is fixed in the rectifying column body below coil pipe on wall,Coil pipe,Filler has been filled with the cavity that upper fixed disk and lower fixed disk surround,The structure design of the utility model is reasonable,Take into account material filling type rectifying advantage,Greatly improve rectifying purity.

Description

The rectifying separator of benzene chloride production

Technical field

Benzene Chloride technical field of rectification is the utility model is related to, is specially the rectifying separator of benzene chloride production.

Background technology

The production of Benzene Chloride (monochloro-benzene) generally uses benzene and chlorine to be mixed under the effect of catalyst iron hoop in chlorination reactor Close reaction to produce, chlorated liquid is generated after chlorination reaction, wherein containing a small amount of polystream, micro chlorine, dilute hydrochloric acid (mass content 0 one 0.5%), ferric trichloride and the complete benzene of unreacted.Chlorated liquid through washing, alkali cleaning remove chlorated liquid in ferric trichloride, acid and After the inorganic impurities such as chlorine, then the chloride through rectifying and separating benzene He other benzene, monochloro-benzene finished product is finally made.

However, in the chloride separation process of existing Benzene Chloride and other benzene, it is not thorough enough due to separating, it frequently can lead to The purity of the Benzene Chloride of gained causes product quality to be affected there are bad after distillation；In addition, existing benzene chloride production Rectifying device, is required to liquid phase working fluid and carries out mass heat transfer with gas-phase working medium, carry out rectifying in the above described manner, the chlorination after rectifying Benzene cannot meet quality requirements, this will seriously affect the stability of unit performance.

Utility model content

The purpose of this utility model is to provide a kind of reasonable in design, material filling type rectifying advantage is taken into account, is greatly improved The rectifying separator of the benzene chloride production of rectifying purity, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides following technical solution：

The rectifying separator of benzene chloride production, including rectifying tower body, the rectifying tower body bottom are provided with slag-drip opening, essence Evaporate the gas-guide tube and drain pipe for being provided with tower body bottom sidewall and stretching into inside, inside the rectifying column body above gas-guide tube from Under it is supreme be disposed with least two groups of heat exchange rectifying components, heat exchange rectifying component includes fitting and is fixed on wall in rectifying column body Coil pipe, upper fixed disk, lower fixed disk and filler, the coil pipe upper end are connected with being pierced by the heat conduction outlet pipe of rectifying column body sidewall, disk Pipe lower end is connected with being pierced by the heat conduction inlet pipe of rectifying column body sidewall, and fixed disk surrounding is fixed on the rectifying column above coil pipe On internal wall, the lower fixed disk surrounding is fixed in the rectifying column body below coil pipe on wall, coil pipe, upper fixed disk and lower fixation Armor into cavity in be filled with filler, be disposed with liquid point in the rectifying column body above heat exchange rectifying component Cloth device and condensation removal of impurities component, the drain stretched into inside rectifying column body is provided between liquid distribution trough and condensation removal of impurities component Pipe, the rectifying tower body top are provided with exhaust pipe.

Preferably, the installation site of the gas-guide tube is higher than the installation site of drain pipe, and drain pipe stretches to rectifying tower body Internal nose end extends downwardly setting.

Preferably, the condensation removal of impurities component includes the condensate tank(trap) for being fixed on wall in rectifying column body, and condensation groove center runs through The first condensation pipe vertically extended is provided with, the upper end of first condensation pipe is provided with multiple extensions The second condensation pipe into condensate tank(trap), is both provided with condensation among the inner wall of first condensation pipe and the second condensation pipe Chuck, condensation chuck inside are filled with condensed water, and the condensate temperature condensed in chuck of the first condensation pipe is cold more than second Condensate temperature in the condensation chuck of solidifying pipeline.

Preferably, the height of the condensate tank(trap) bottom end face gradually reduces set again from left to right in horizontal direction, condensation Its lowest position of slot bottom end surface is provided with the removal of impurities pipe for being pierced by rectifying column body sidewall.

Preferably, cloth is divided equally on fixed disk and lower fixed disk and is provided with mesh.

Compared with prior art, the beneficial effects of the utility model are：Mixed liquor is imported in rectifying column body by catheter Portion, meanwhile, heat conduction inlet pipe imports heat exchange liquid phase, carries out continuous contact heat-exchanging with mixed liquor, the Benzene Chloride of gasification is in gas pressure Lower to be flowed to top, remaining liquid under the effect of gravity, constantly gathers to lower end, is finally discharged from drain pipe；Due to heat exchange Liquid phase, without directly contacting, is conducted heat with gas phase by filler, and Benzene Chloride heating gasification is very fast, in the case where pressure is constant, takes into account The advantages of material filling type rectifier, greatly improve rectifying purity；Using the progressive of the first condensation pipe and the second condensation pipe Formula condensation can ensure that the impurity in Benzene Chloride is separated, and cause the separation accuracy of Benzene Chloride further to be improved.This reality It is reasonable with new structural design, material filling type rectifying advantage is taken into account, greatly improves rectifying purity.

Brief description of the drawings

Fig. 1 is the structure diagram of the rectifying separator of benzene chloride production.

In figure：1- rectifying tower bodies, 2- exhaust pipes, 3- catheters, 4- gas-guide tubes, 5- slag-drip openings, 6- drain pipes are fixed under 7- Disk, 8- heat conduction inlet pipes, 9- fillers, 10- coil pipes, 11- heat conduction outlet pipes, the upper fixed disks of 12-, 13- liquid distribution troughs, 14- inducing covers, 15- condensate tank(trap)s, the second condensation pipes of 16-, 17- removal of impurities pipes, the first condensation pipes of 18-.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

Referring to Fig. 1, the utility model provides a kind of technical solution：The rectifying separator of benzene chloride production, including essence Tower body 1 is evaporated, 1 bottom of rectifying tower body is provided with slag-drip opening 5, is provided with 1 bottom sidewall of rectifying tower body and stretches into leading for inside Tracheae 4 and drain pipe 6, are disposed with least two groups of heat exchange essences from bottom to up inside the rectifying tower body 1 above gas-guide tube 4 Component is evaporated, heat exchange rectifying component includes coil pipe 10, upper fixed disk 12,7 and of lower fixed disk that fitting is fixed on 1 inner wall of rectifying tower body Filler 9,10 upper end of coil pipe are connected with being pierced by the heat conduction outlet pipe 11 of 1 side wall of rectifying tower body, and 10 lower end of coil pipe is with being pierced by rectifying The heat conduction inlet pipe 8 of 1 side wall of tower body connects, and fixed 12 surrounding of disk is fixed on 1 inner wall of rectifying tower body of the top of coil pipe 10, 7 surrounding of lower fixed disk is fixed on 1 inner wall of rectifying tower body of the lower section of coil pipe 10, coil pipe 10, upper fixed disk 12 and lower fixation Filler 9 has been filled with the cavity that disk 7 surrounds, liquid is disposed with the rectifying tower body 1 above heat exchange rectifying component Body distributor 13 and condensation removal of impurities component, are provided between liquid distribution trough 13 and condensation removal of impurities component and stretch into rectifying tower body 1 The catheter 3 in portion, the top of rectifying tower body 1 are provided with exhaust pipe 2；It is distributed on fixed disk 12 and lower fixed disk 7 It is provided with mesh.

Wherein, the installation site of the gas-guide tube 4 is higher than the installation site of drain pipe 6, and drain pipe 6 stretches to rectifying tower body Nose end inside 1 extends downwardly setting, avoids directing gas flow from being discharged from drain pipe；The condensation removal of impurities component includes being fixed on The condensate tank(trap) 15 of 1 inner wall of rectifying tower body, 15 center of condensate tank(trap) are provided through the first condenser pipe vertically extended Road 18, the bottom of the first condensation pipe 18 are provided with inducing cover 14, and the upper end of first condensation pipe 18 is provided with more A the second condensation pipe 16 extended in condensate tank(trap) 15, the inner wall of 18 and second condensation pipe 16 of the first condensation pipe it In be both provided with condensation chuck, condensed water, the condensation condensed in chuck of the first condensation pipe 18 be filled with inside condensation chuck Coolant-temperature gage is more than the condensate temperature in the condensation chuck of the second condensation pipe 16；The height of 15 bottom end face of condensate tank(trap) is again Gradually reduce and set from left to right in horizontal direction, its lowest position of 15 bottom end face of condensate tank(trap), which is provided with, is pierced by rectifying tower body The removal of impurities pipe 17 of 1 side wall.

The operation principle of the utility model is：Mixed liquor is imported inside rectifying tower body 1 by catheter 3, meanwhile, heat conduction into Pipe 8 imports heat exchange liquid phase, and continuous contact heat-exchanging is carried out with mixed liquor, and the Benzene Chloride of gasification flows under gas pressure to top, Remaining liquid under the effect of gravity, constantly gathers to lower end, is finally discharged from drain pipe 6；Due to heat exchange liquid phase and gas phase without Directly contact, conduct heat by filler, Benzene Chloride heating gasification is very fast, in the case where pressure is constant, has taken into account material filling type rectifying The advantages of device, greatly improve rectifying purity；Can using the gradual condensation of the first condensation pipe 18 and the second condensation pipe 16 Ensure that the impurity in Benzene Chloride is separated, cause the separation accuracy of Benzene Chloride further to be improved.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.

Claims (5)

1. the rectifying separator of benzene chloride production, including rectifying tower body, it is characterised in that：The rectifying tower body bottom is provided with Slag-drip opening, the gas-guide tube and drain pipe for stretching into inside, the rectifying above gas-guide tube are provided with rectifying tower body bottom sidewall At least two groups of heat exchange rectifying components are disposed with inside tower body from bottom to up, heat exchange rectifying component is fixed on rectifying including fitting The coil pipe of tower body inner wall, upper fixed disk, lower fixed disk and filler, heat conduction of the coil pipe upper end with being pierced by rectifying column body sidewall go out Pipe connects, and coil pipe lower end is connected with being pierced by the heat conduction inlet pipe of rectifying column body sidewall, and fixed disk surrounding is fixed on coil pipe In the rectifying column body of side on wall, the lower fixed disk surrounding is fixed in the rectifying column body below coil pipe on wall, coil pipe, upper fixation Filler has been filled with the cavity that disk and lower fixed disk surround, has been set successively in the rectifying column body above heat exchange rectifying component Liquid distribution trough and condensation removal of impurities component are equipped with, is provided with and is stretched into rectifying column body between liquid distribution trough and condensation removal of impurities component The catheter in portion, the rectifying tower body top are provided with exhaust pipe.

2. the rectifying separator of benzene chloride production according to claim 1, it is characterised in that：The installation of the gas-guide tube Position is higher than the installation site of drain pipe, and the nose end that drain pipe is stretched to inside rectifying column body extends downwardly setting.

3. the rectifying separator of benzene chloride production according to claim 1, it is characterised in that：The condensation removal of impurities component Condensate tank(trap) including being fixed on wall in rectifying column body, condensation groove center are provided through vertically being extended first cold Solidifying pipeline, the upper end of first condensation pipe are provided with multiple the second condensation pipes extended in condensate tank(trap), and described the Condensation chuck is both provided among the inner wall of one condensation pipe and the second condensation pipe, condensed water is filled with inside condensation chuck, Condensate temperature in the condensation chuck of first condensation pipe is more than the condensate temperature in the condensation chuck of the second condensation pipe.

4. the rectifying separator of benzene chloride production according to claim 3, it is characterised in that：The condensate tank(trap) bottom end The height in face gradually reduces set again from left to right in horizontal direction, and its lowest position of condensate tank(trap) bottom end face, which is provided with, to be pierced by The removal of impurities pipe of rectifying column body sidewall.

5. the rectifying separator of benzene chloride production according to claim 1, it is characterised in that：Fixed disk is with Divide equally cloth on fixed disk and be provided with mesh.