CN2677375Y

CN2677375Y - Parachloroanilinum reduction, distilling still

Info

Publication number: CN2677375Y
Application number: CN 03214022
Authority: CN
Inventors: 杨春峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-14
Filing date: 2003-07-14
Publication date: 2005-02-09
Anticipated expiration: 2013-07-14

Abstract

The utility model provides a distilling still used for chloroaniline deoxidization in chemical machinery field. A still cover is arranged on a still body provided with a heat exchange jacket and a heat exchange pipe through a connecting flange; the lower part of the still body is connected with a bracket, a discharge opening and a lower heat exchange inlet and outlet; a discharging tube is arranged between the still body wall in the still body and the lower discharge opening; a human body inlet and outlet, a feed inlet, a machine frame, a speed reducer and a stirring motor are arranged on the still cover, and a sealing device is arranged in the machine frame. The speed reducer is connected with a stirring shaft through a shaft connector, and a stirring rake provided with rake teeth is arranged on the lower part of the stirring shaft. The inner wall of the still body is provided with an anticorrosion lining. Compared with the existing single wall and steam blowing still, the utility model can prolong service life, enhance production efficiency, reduce working procedure and energy consumption and avoid the discharging of wastewater. The utility model is suitable for the reduction and the distillation of chloroaniline and the production of similar chemical products.

Description

P-Chlorobenzoic acid amide reduction, still kettle

Technical field

The utility model proposes the chemical reaction kettle of chemical machinery field, specifically a kind of p-Chlorobenzoic acid amide reduction, still kettle.

Background technology

Before the utility model proposes, what the production of p-Chlorobenzoic acid amide was adopted is the single wall reactor of cylinder iron making, and kettle has charging and discharging mouth and steam access port and waste water outlet, and mechanical stirring device is installed in kettle.The thermal source condition of still internal reaction material is to realize by the mode that steam directly is blown into.Because steam directly is blown in the material, when thermal source is provided, has also produced a large amount of waste water, contain objectionable impurities in the waste water, directly discharging does not meet the emission standard of environmental requirement, need carry out purifying treatment, increase production cost, simultaneously, also environment has been produced destruction.The discharging of waste water has also been taken away certain heat simultaneously, does not also meet requirement energy-conservation, water saving.This kind reactor is after finishing reaction, and reactant is directly discharged from relief outlet, enters distillation and separation circuit again, and operation sequence is loaded down with trivial details, and production efficiency is low, and the production cycle is long, the comprehensive cost height.

Summary of the invention

The utility model proposes a kind of p-Chlorobenzoic acid amide reduction, still kettle of new texture at existing shortcoming of producing the used still of p-Chlorobenzoic acid amide.Organization plan is, is provided with kettle cover on kettle top, is provided with the heat exchange chuck on kettle, is provided with heat exchanger tube in kettle, and is connected with the heat exchange chuck.Be connected with support in the kettle bottom, on the kettle wall, be connected with discharge gate and following heat exchange import and export.Be provided with drainage conduit between intravital kettle wall of still and following discharge gate, the one end forms pipe connecting on the discharge gate by the kettle wall, and the lower end is connected with following discharge gate.Between kettle and kettle cover, be provided with joint flange.Being provided with human body on kettle cover imports and exports and charging opening, upper middle position at kettle cover is equipped with frame, step-down gear and agitator motor are installed on frame, in frame, be provided with sealer, between the power output shaft of step-down gear and stir shaft, be provided with shaft joint, lower end at stir shaft is equipped with raker stirrer, is provided with rake teeth on raker stirrer.Inner wall of kettle is provided with anticorrosion lining.

Owing on the stir shaft of the present utility model raker stirrer is installed, when stirring, can prevent the deposition of material, help the even of reaction mass, and can improve speed of response.

Because kettle of the present utility model is provided with heat exchange chuck and heat exchanger tube, strengthened heat exchange area and the harmony of conducting heat, helped the raising of the speed of reaction of reaction mass, thermal cycling working medium can reuse, can't produce the waste water that contains source of pollution, realize water saving and prevented polluting.

Owing in the kettle of the present utility model drainage conduit is installed, can realize discharge, help the separation of material.

Owing to be provided with anticorrosion lining in the utility model kettle, can prevent the corrosion of inner wall of kettle, improve the work-ing life of kettle.

Description of drawings

Fig. 1 is the utility model structure iron

Among Fig. 1,1 is kettle, is provided with heat exchange chuck 1A on kettle 1, and heat exchanger tube 1A2 is installed in kettle, its top is passed the kettle wall and is connected with Link Port 1A1 on the heat exchanger tube, and the bottom is passed through inner wall of kettle by Link Port 1A3 under the heat exchanger tube and is connected with kettle heat exchange chuck.In the kettle bottom support 2 is installed.Be provided with discharge 4 down in the kettle bottom, and with the kettle intracavity inter-connection, on kettle heat exchange chuck, be provided with Link Port 1A4 under the heat exchange chuck.Be provided with drainage conduit 3, one ends and be connected with the kettle wall and form Link Port 3A on the drainage conduit in kettle, the other end is Link Port 3B under the drainage conduit, is connected with following discharge gate 4.By joint flange 1C kettle cover 1B is installed on kettle top, on kettle cover, is provided with human body import and export 6 and opening for feed 5.In the mid-way on kettle cover top frame 7 is installed, step-down gear 10 is installed, agitator motor 11 is installed on step-down gear at upper rack.On the power output shaft of the bottom of step-down gear, be connected with stir shaft 12, be provided with sealer 8 between stir shaft in frame and the kettle cover upper wall, raker stirrer 13 is installed on stir shaft, on raker stirrer, be provided with rake teeth 13A by shaft joint 9.On inner wall of kettle, be provided with anticorrosion lining 14.

Embodiment

Adopt the reduction of the utility model scheme system p-Chlorobenzoic acid amide, still kettle.

Kettle and heat exchange mechanism: make kettle 1 by the method for curling and weld with sheet metal, and formation heat exchange chuck 1A, arrange arrangement heat exchanger tube 1A2 in kettle inner chamber spiral, its upper end is passed the kettle wall and is formed Link Port 1A1 on the heat exchanger tube, Link Port 1A3 is connected with the inner wall of kettle of heat exchange chuck position under the heat exchanger tube of lower end, and communicate, be provided with Link Port 1A4 under the heat exchange chuck in the kettle bottom.The rotten lining 14 of on inner wall of kettle, setting up defences.In the bottom of kettle, connect through metal 2, be generally 3-foot.Discharge gate 4 under the bottom of kettle connects, and with the kettle intracavity inter-connection.In the inside edge of kettle the piped metal tube is installed and is formed Link Port 3A on the drainage conduit as drainage conduit 3, one ends by the kettle wall, Link Port 3B is connected with following discharge gate 4 under the drainage conduit of the other end.By the joint flange 1C that is located at respectively on kettle and the kettle cover kettle cover 1B is being installed on the kettle.Constitute human body import and export 6 and opening for feed 7 in the kettle cover upper shed, be provided with lid on human body is imported and exported, opening for feed can be connected with the material supply line.

Whipping appts mechanism: frame 7 is installed in the mid-way on kettle top, and step-down gear 10 and agitator motor 11 are installed on frame.On the power output shaft of step-down gear, connect stir shaft 12, raker stirrer 13 is installed on stir shaft, connect several rake teeths 13A in the bottom of raker stirrer by shaft joint.

The utility model is used and working process:

Reduction: will carry out the reductive material in advance and join in the kettle, Link Port under Link Port on the heat exchanger tube and the kettle heat exchange is connected with the thermal source pipeline respectively, and constitute circulation loop.Material carries out reduction reaction through heat effect.After reaction is finished,, enter next process or directly distill processing, separate finished product and reductive agent residue by descending discharge gate or under the effect of pressure, discharging by drainage conduit.

Distillation: will carry out the distillatory material in advance and inject or be deposited in the kettle, and connect heat exchanger, and carry out material and heat up, and make to slip in the material part to enter by the opening for feed evaporation to cool back receiving apparatus, residue is discharged by discharge gate down, finishes still-process.

Show that through practical probation the utility model still can improve work-ing life than existing still in the production process of p-Chlorobenzoic acid amide, enhance productivity, and reduces operation, reduces energy consumption, the discharging of stopping waste water.

Claims

1, a kind of p-Chlorobenzoic acid amide reduction, still kettle, constitute by kettle (1) and kettle cover (1B), be connected with support (2) in kettle (1) bottom, following discharge gate (4), on kettle cover, be provided with human body and import and export (6) and charging opening (5), frame (7) is installed in the mid-way on kettle cover top, step-down gear (10) and agitator motor (11) are installed on frame, in frame, be provided with sealer (8), on the power output shaft of step-down gear, be connected with stir shaft (12) by shaft joint (9), it is characterized in that: raker stirrer (13) is installed in the lower end of stir shaft (12), raker stirrer is provided with rake teeth (13A), on kettle, be provided with heat exchange chuck (1A), heat exchanger tube (1A2) is installed in kettle, heat exchanger tube one end forms Link Port (1A1) by the kettle wall, the other end is connected with the heat exchange chuck, be provided with Link Port under the heat exchange (1A3) in the bottom of heat exchange chuck, side at the intravital kettle wall of still is provided with drainage conduit (3), one end forms Link Port (3A) on the drainage conduit by the kettle wall, the lower end is connected with following discharge gate (3B), is provided with preservative coat (14) on inner wall of kettle.