CN211999534U - Purification device is used in production of diethyl toluene diamine - Google Patents

Abstract

A purification device for producing diethyltoluenediamine comprises a gas-liquid separation device and a filtering device; the gas-liquid separation device comprises a kettle body, a central shaft is vertically and rotatably connected in the kettle body, a heat conducting cavity is formed in the central shaft, an upper connecting box and a lower connecting box are respectively arranged at the upper end and the lower end of the central shaft, the upper connecting box and the lower connecting box are communicated through a connecting pipe, a circulating pump and a heater are arranged on the connecting pipe, at least two groups of radiating assemblies are arranged on the central shaft, and an air outlet pipe is arranged at the top of the kettle body; filter equipment includes the unloading pipe, and unloading pipe right-hand member flange joint has the filter tube, and filter tube concentric fixedly connected with filters a sieve section of thick bamboo, and unloading pipe lower part level is rotated and is connected with the pivot, and the slag notch has been seted up to unloading pipe bottom, and the backwash mouth has been seted up at the filter tube top, and the liquid outlet has been seted up to the filter tube bottom, and the pivot outer wall is provided with the scrubbing subassembly that is located a filter sieve section of thick bamboo. The utility model discloses simple structure, job stabilization, purification are effectual, purification efficiency is high.

Description

Purification device is used in production of diethyl toluene diamine

Technical Field

The utility model belongs to the technical field of chemical production, especially, relate to a diethyl toluene diamine production is with purification device.

Background

The diethyl toluene diamine is a rapid amine chain extender, is mainly applied to polyurethane and epoxy resin curing agents, and can also be used as an antioxidant of an oil product chemical intermediate. When preparing the diethyltoluenediamine, diaminotoluene and a catalyst are added into a reaction kettle, then ethylene is introduced, the alkylation reaction starts, and after the alkylation reaction is finished, the synthetic substance is pressed into a distillation kettle for distillation to obtain a main fraction diethyltoluenediamine, a front fraction and the residual catalyst. The mixture needs to be purified after reaction, and the existing purification device has low purification efficiency and poor purification effect and is difficult to meet the existing production requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide a simple structure, job stabilization, purification are effectual, the efficient purification device is used in diethyl toluene diamine production of purification.

In order to solve the technical problem, the utility model adopts the following technical scheme: a purification device for producing diethyltoluenediamine comprises a gas-liquid separation device and a filter device communicated with the gas-liquid separation device; the gas-liquid separation device comprises a kettle body, a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the top and the bottom of the kettle body, a central shaft is vertically and rotatably connected in the kettle body, the lower end of the central shaft is rotatably connected in the kettle body through a mounting frame, a first driving motor for driving the central shaft to rotate is arranged at the top of the kettle body, a heat conduction cavity is formed in the central shaft, an upper connecting box and a lower connecting box which are communicated with the heat conduction cavity are respectively arranged at the upper end and the lower end of the central shaft, the upper connecting box and the lower connecting box are communicated through a connecting pipe, a circulating pump and a heater are arranged on the connecting pipe, a liquid storage box is arranged between the circulating pump and the heater, at least two groups of heat dissipation; filter equipment includes the unloading pipe, unloading pipe upper end and drain pipe lower extreme flange joint, unloading pipe right-hand member flange joint has the filter tube, a concentric fixedly connected with filter sieve section of thick bamboo in the filter tube, filter sieve section of thick bamboo lateral wall array has seted up a plurality of filtration pores of crossing, unloading pipe lower part level is rotated and is connected with the pivot, pivot right-hand member portion stretches into to filter sieve section of thick bamboo in, unloading outside of tubes portion is provided with and is used for driving pivot pivoted second driving motor, the pivot outer wall is located the helical blade of unloading intraductal along its length direction fixedly connected with, the slag notch has been seted up to the unloading bottom, the backwash mouth has been seted up at the filter tube top, the liquid outlet has been seted up to the filter tube.

The radiating assembly comprises an upper radiating box and a lower radiating box which are fixedly connected to the outer wall of the central shaft, the upper radiating box and the lower radiating box are respectively communicated with the heat conducting cavity through heat conducting holes, and the upper radiating box and the lower radiating box are respectively communicated with each other through a plurality of radiating pipes along the circumferential direction.

The cleaning brush assembly comprises cleaning brushes fixedly connected to the upper side and the lower side of the rotating shaft through connecting rods respectively, and the cleaning brushes are in contact with the inner wall of the filtering screen cylinder respectively.

And a gas collecting hood is arranged at the top in the kettle body, and a gas outlet pipe is communicated with the gas collecting hood.

The upper portion of the blanking pipe is rotatably connected with a filter screen, the middle portion of the filter screen is downwards sunken to form a hemispherical structure, two sides of the filter screen are respectively rotatably connected onto the blanking pipe through rotating rods, and a knob located outside the blanking pipe is arranged at the end portion of the rotating rod on one side of the filter screen.

An activated carbon layer is arranged in the liquid outlet.

By adopting the technical proposal, when the utility model works and is used, the feed liquid is guided into the kettle body by the feed liquor pipe, the first driving motor drives the central shaft to stir the feed liquid in the kettle body, under the action of the circulating pump, heating liquid in the liquid storage tank is heated by the heater and then is guided into the heat conduction cavity through the connecting pipe and the upper connecting tank, and respectively enter the upper heat dissipation box and the lower heat dissipation box through the heat conduction holes, and flow through the heat dissipation pipes, finally flow back to the lower connecting box, and are guided into the liquid storage box through the connecting pipe to realize circulation, and the heat dissipation pipes stir the material liquid in the kettle body under the rotation action of the central shaft on one hand and heat the material liquid in the kettle body on the other hand, the feed liquid is fully heated, the separation rate of gas phase and liquid phase is improved, and the gas phase is guided into the gas storage box through the gas outlet pipe through the gas collecting hood, so that gas-liquid separation is realized; the mixed feed liquid after the internal reaction of cauldron is leading-in to the unloading intraductal through the drain pipe, filter the large granule material through the filter screen, second driving motor drives the pivot and rotates, under helical blade's effect in the pivot, the feed liquid is carried to in the filter pipe, under the filtering action of filtering a sieve section of thick bamboo, filter out the small granule material in the feed liquid, the feed liquid is derived through the liquid outlet after filtering, the pivot drives the cleaning brush at the pivoted in-process and carries out the brushwork to filtering a sieve section of thick bamboo inner wall, avoid the material to block up the filtration pore, after filtering, through backwash mouth to filter intraductal water injection to the filter, and enter filtering a sieve section of thick bamboo, carry out the back flush with the filter residue in filtering a sieve section of thick bamboo, and discharge by the slag notch, and can twist the knob, pour out in the filter screen, and to pouring water in the unloading.

Drawings

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

Detailed Description

As shown in figure 1, the purification device for producing diethyltoluenediamine of the utility model comprises a gas-liquid separation device and a filter device communicated with the gas-liquid separation device; the gas-liquid separation device comprises a kettle body 1, a liquid inlet pipe 2 and a liquid outlet pipe 3 are respectively arranged at the top and the bottom of the kettle body 1, a central shaft 4 is vertically and rotatably connected in the kettle body 1, the lower end of the central shaft 4 is rotatably connected in the kettle body 1 through a mounting frame 5, a first driving motor 6 for driving the central shaft 4 to rotate is arranged at the top of the kettle body 1, a heat conduction cavity 7 is formed in the central shaft 4, an upper connecting box 8 and a lower connecting box 9 which are communicated with the heat conduction cavity 7 are respectively arranged at the upper end and the lower end of the central shaft 4, the upper connecting box 8 and the lower connecting box 9 are communicated through a connecting pipe 10, a circulating pump 11 and a heater 12 are arranged on the connecting pipe 10, a liquid storage box 13 is arranged between the circulating pump 11 and the heater 12, at least two groups of heat dissipation assemblies are arranged on the central shaft; filter equipment includes unloading pipe 16, unloading pipe 16 upper end and 3 lower extreme flange joint of drain pipe, unloading pipe 16 right-hand member flange joint has filter tube 17, concentric fixedly connected with filters a section of thick bamboo 18 in the filter tube 17, filter a section of thick bamboo 18 lateral wall array and seted up a plurality of filtration holes, unloading pipe 16 lower part level is rotated and is connected with pivot 19, 19 right-hand member portions of pivot stretch into to filtering in a section of thick bamboo 18, unloading pipe 16 outside is provided with and is used for driving pivot 19 pivoted second driving motor 20, 19 outer walls of pivot are located the helical blade 21 of unloading pipe 16 along its length direction fixedly connected with, the slag notch 22 has been seted up to unloading pipe 16 bottom, backwash mouth 23 has been seted up at filter tube 17 top, liquid outlet 24 has been seted up to filter tube 17 bottom, 19 outer walls of pivot are provided with the clean brush subassembly that is.

The heat dissipation assembly comprises an upper heat dissipation box 25 and a lower heat dissipation box 26 which are fixedly connected to the outer wall of the central shaft 4, the upper heat dissipation box 25 and the lower heat dissipation box 26 are respectively communicated with the heat conduction cavity 7 through heat conduction holes, and the upper heat dissipation box 25 and the lower heat dissipation box 26 are respectively communicated with each other through a plurality of heat dissipation pipes 27 along the circumferential direction.

The cleaning assembly comprises cleaning brushes 29 fixedly connected to the upper side and the lower side of the rotating shaft 19 through connecting rods 28 respectively, and the cleaning brushes 29 are in contact with the inner wall of the filter screen cylinder 18 respectively.

The top in the kettle body 1 is provided with a gas-collecting hood 30, and the gas outlet pipe 14 is communicated with the gas-collecting hood 30.

The upper part of the blanking pipe 16 is rotatably connected with a filter screen 31, the middle part of the filter screen 31 is sunken downwards to form a hemispherical structure, two sides of the filter screen 31 are respectively rotatably connected to the blanking pipe 16 through rotating rods 32, and a knob positioned outside the blanking pipe 16 is arranged at the end part of the rotating rod 32 at one side of the filter screen 31.

An activated carbon layer 33 is arranged in the liquid outlet 24.

When the utility model is used, the feed liquid is guided into the kettle body 1 through the feed liquid pipe 2, the first driving motor 6 drives the central shaft 4 to stir the feed liquid in the kettle body 1, under the action of the circulating pump 11, the heating liquid in the liquid storage tank 13 is heated by the heater 12, and is guided into the heat conduction cavity 7 through the upper connecting tank 8 through the connecting pipe 10, and respectively enters the upper heat dissipation tank 25 and the lower heat dissipation tank 26 through the heat conduction hole, and flows through each heat dissipation pipe 27, and finally flows back to the lower connecting tank 9, and is guided into the liquid storage tank 13 through the connecting pipe 10, so as to realize circulation, each heat dissipation pipe 27 on the one hand stirs the feed liquid in the kettle body 1 under the rotating action of the central shaft 4, on the other hand heats the feed liquid in the kettle body 1, so that the feed liquid is fully heated, the separation rate of gas phase and liquid phase is improved, the gas phase is guided into the gas storage tank through the gas, thereby realizing gas-liquid separation; the mixed material liquid after reaction in the kettle body 1 is guided into the blanking pipe 16 through the liquid outlet pipe 3, large granular substances are filtered by the filter screen 31, the second driving motor 20 drives the rotating shaft 19 to rotate, under the action of the helical blade 21 on the rotating shaft 19, the feed liquid is conveyed into the filtering pipe 17, under the filtering action of the filtering screen drum 18, small particle substances in the feed liquid are filtered out, the feed liquid is led out through the liquid outlet 24 after being filtered, the rotating shaft 19 drives the cleaning brush 29 to clean the inner wall of the filtering screen drum 18 in the rotating process, the material is prevented from blocking the filtering holes, after the filtering is finished, injecting water into the filter pipe 17 through a backwashing hole 23 and entering the filter screen cylinder 18, reversely washing filter residues in the filter screen cylinder 18 and discharging the filter residues from a slag hole 22, and can twist the knob, pour the filter residue in the filter screen 31 to pour water into to the unloading pipe 16 and wash, be convenient for clear away the slag charge.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (6)

1. A purification device for producing diethyl toluene diamine is characterized in that: comprises a gas-liquid separation device and a filter device communicated with the gas-liquid separation device; the gas-liquid separation device comprises a kettle body, a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the top and the bottom of the kettle body, a central shaft is vertically and rotatably connected in the kettle body, the lower end of the central shaft is rotatably connected in the kettle body through a mounting frame, a first driving motor for driving the central shaft to rotate is arranged at the top of the kettle body, a heat conduction cavity is formed in the central shaft, an upper connecting box and a lower connecting box which are communicated with the heat conduction cavity are respectively arranged at the upper end and the lower end of the central shaft, the upper connecting box and the lower connecting box are communicated through a connecting pipe, a circulating pump and a heater are arranged on the connecting pipe, a liquid storage box is arranged between the circulating pump and the heater, at least two groups of heat dissipation; filter equipment includes the unloading pipe, unloading pipe upper end and drain pipe lower extreme flange joint, unloading pipe right-hand member flange joint has the filter tube, a concentric fixedly connected with filter sieve section of thick bamboo in the filter tube, filter sieve section of thick bamboo lateral wall array has seted up a plurality of filtration pores of crossing, unloading pipe lower part level is rotated and is connected with the pivot, pivot right-hand member portion stretches into to filter sieve section of thick bamboo in, unloading outside of tubes portion is provided with and is used for driving pivot pivoted second driving motor, the pivot outer wall is located the helical blade of unloading intraductal along its length direction fixedly connected with, the slag notch has been seted up to the unloading bottom, the backwash mouth has been seted up at the filter tube top, the liquid outlet has been seted up to the filter tube.

2. The purification apparatus for production of diethyltoluenediamine according to claim 1, characterized in that: the radiating assembly comprises an upper radiating box and a lower radiating box which are fixedly connected to the outer wall of the central shaft, the upper radiating box and the lower radiating box are respectively communicated with the heat conducting cavity through heat conducting holes, and the upper radiating box and the lower radiating box are respectively communicated with each other through a plurality of radiating pipes along the circumferential direction.

3. The purification apparatus for production of diethyltoluenediamine according to claim 2, characterized in that: the cleaning brush assembly comprises cleaning brushes fixedly connected to the upper side and the lower side of the rotating shaft through connecting rods respectively, and the cleaning brushes are in contact with the inner wall of the filtering screen cylinder respectively.

4. The purification apparatus for production of diethyltoluenediamine according to claim 3, characterized in that: and a gas collecting hood is arranged at the top in the kettle body, and a gas outlet pipe is communicated with the gas collecting hood.

5. The purification apparatus for diethyltoluenediamine production according to claim 4, characterized in that: the upper portion of the blanking pipe is rotatably connected with a filter screen, the middle portion of the filter screen is downwards sunken to form a hemispherical structure, two sides of the filter screen are respectively rotatably connected onto the blanking pipe through rotating rods, and a knob located outside the blanking pipe is arranged at the end portion of the rotating rod on one side of the filter screen.

6. The purification apparatus for production of diethyltoluenediamine according to claim 5, characterized in that: an activated carbon layer is arranged in the liquid outlet.

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