CN219463400U - Continuous liquid-solid reaction device - Google Patents

Abstract

The utility model discloses a continuous liquid-solid reaction device, wherein an outlet of a liquid-solid mixer is connected with a first flowmeter and then is connected with a liquid-solid mixing feed pipe in a reactor; the liquid feed inlet is connected with a liquid feed pipe in the reactor, and the outlet of the liquid feed pipe is connected to the liquid-solid mixing feed pipe; the gas outlet is connected with a reflux condenser, the liquid phase outlet of the reflux condenser is connected with a reflux port, and the reflux port is connected with a reflux pipe in the reactor; the overflow port is connected with the post-treatment assembly, the solid outlet of the post-treatment assembly is connected with the liquid-solid mixer, the liquid outlet is divided into two branches, one branch is connected with the finished product bin, and the other branch is connected with the semi-finished product feeding pipe; the liquid-solid mixing feeding pipe and the semi-finished product feeding pipe are vertically inserted into the reactor and are arranged on two sides of the stirring equipment. The scheme provided by the utility model can be suitable for the continuous reaction of a large amount of liquid-solid reaction materials, and the liquid-solid mixed system after the reaction continuously enters the designed post-treatment system, so that the liquid-solid is rapidly and effectively separated continuously, and the yield is improved.

Description

Continuous liquid-solid reaction device

Technical Field

The utility model belongs to the technical field of chemical reaction equipment, and particularly relates to a continuous liquid-solid reaction device.

Background

The liquid-solid reaction is one of the common reaction types in fine chemical production, and the requirement of the reaction is that the solid and the liquid participating in the reaction are in sufficient contact. At present, when the material treatment capacity of the liquid-solid reaction is large, intermittent reaction is usually adopted, time is consumed in stopping, feeding and reactor cleaning, and the treatment efficiency is low; meanwhile, the intermittent reaction stopping, cleaning, feeding and other stages all need to be operated on site by people, so that labor is consumed, and uncontrollable safety risks are increased; because different liquid-solid materials react for different time, the equipment universality is poor, the equipment cannot be effectively applied to different liquid-solid reactions, the reaction is easy to be incomplete, continuous production cannot be ensured, and the productivity is low. The continuous reactor can achieve continuous raw material feeding and continuous product discharging, and has the advantages of high production efficiency, high productivity, less equipment investment, easy control of product quality and the like.

Chinese patent publication No. CN107537419a discloses an overflow type liquid-solid phase reactor and liquid-solid reaction method, which comprises adding solid phase reactant into hopper, making it fall into open screen basket, introducing liquid phase reactant from liquid phase feeder, making solid and liquid phase reactants contact and react in open screen basket, discharging liquid phase product from overflow port of liquid phase product, and discharging gas from gas outlet. Although this patent can be used for liquid-solid to take place the reaction, realizes that liquid-solid phase reactant fully contacts, and the reaction steadily goes on to can avoid the solid phase reactant deposit to lead to the fact the sieve mesh to block up in the sieve basket bottom, but when using in the reaction of big liquid-solid material in batches, especially solid raw materials takes up more, and under the condition that intermediate state material is more sticky, then show inefficiency, can't realize the continuous dynamic reaction of big batch material, the commonality is poor, the application range is little, consume the manpower.

Disclosure of Invention

The utility model aims to: the utility model aims to overcome the defects of the prior art, and provides a continuous liquid-solid reaction device which can be suitable for continuous reaction of a large amount of liquid-solid reaction materials and is suitable for relatively sticky reaction of intermediate substances. The reacted liquid-solid mixed system continuously enters a designed post-treatment system to achieve rapid and effective continuous separation of liquid and solid, thereby achieving recycling of solid raw materials and transferring the liquid raw materials of the product into the next reaction.

The technical scheme is as follows: the utility model relates to a continuous liquid-solid reaction device, which is characterized in that: comprises a liquid-solid mixer, a reactor, stirring equipment, a reflux condenser and a post-treatment component; the stirring equipment is arranged in the reactor; a liquid-solid mixed liquid feed inlet and a liquid feed inlet are formed in one side of the reactor, a gas outlet, a reflux port and an overflow port are sequentially formed in the other side of the reactor from top to bottom, an outlet of the liquid-solid mixer is connected with a first flowmeter and then connected with the liquid-solid mixed liquid feed inlet on the reactor, and the liquid-solid mixed liquid feed inlet is connected with a liquid-solid mixed feed pipe in the reactor; the liquid feeding hole is connected with a liquid feeding pipe in the reactor, and an outlet of the liquid feeding pipe is connected to the liquid-solid mixing feeding pipe; the gas outlet is connected to the reflux condenser, the liquid phase outlet of the reflux condenser is connected to the reflux port, and the reflux port is connected with a reflux pipe in the reactor; the overflow port is connected with the post-treatment assembly, the outlet of the post-treatment assembly is divided into a solid outlet and a liquid outlet, the solid outlet is connected with the liquid-solid mixer, the liquid outlet of the post-treatment assembly is divided into two branches, one branch is connected with the finished product bin, the other branch is connected with a semi-finished product feeding port at the top of the reactor, and the semi-finished product feeding port is connected with a semi-finished product feeding pipe in the reactor; the liquid-solid mixing feeding pipe and the semi-finished product feeding pipe are vertically inserted into the reactor and are arranged on two sides of the stirring equipment.

Further, in order to facilitate the regulation of the temperature of the reaction system, a heat-preserving jacket is arranged at the periphery of the reactor; the bottom of the heat preservation jacket is provided with a temperature-adjusting medium inlet, and the top of the heat preservation jacket is provided with a temperature-adjusting medium outlet.

Further, in order to monitor the condition of the reaction system in real time, the top of the reactor is provided with a pressure sensor and a temperature sensor.

Further, as a preferred embodiment, the stirring device comprises a stirring motor, a stirring rod and a stirring paddle, wherein the stirring motor is arranged outside the reactor, the stirring motor is connected to the top of the stirring rod, the stirring paddle is connected to the bottom of the stirring rod, and the outlets of the liquid-solid mixing feed pipe and the semi-finished product feed pipe are positioned above the stirring paddle.

Further, as a preferred embodiment, the post-treatment assembly comprises at least one group of centrifuges, when the reaction system in the reactor reaches dynamic balance, the reacted materials are led into the centrifuges from the overflow port, the centrifuges separate solid from liquid, and the separated solid is led into a liquid-solid mixer for application; the liquid outlet separated by the centrifugal machine is divided into two branches, one branch is connected into a finished product bin through a pump, and the other branch is connected into a semi-finished product feeding port at the top of the reactor through the pump.

The beneficial effects are that: the scheme provided by the utility model can be applicable in a large amount of liquid-solid reaction material continuous reaction to be applicable to the more sticky reaction of intermediate state material, the continuous aftertreatment system who gets into the design of liquid-solid mixing system after the reaction reaches the quick, effectual continuous separation of liquid-solid, thereby reaches solid raw materials and recycles, and the product liquid raw materials shifts into the reaction of next step, has improved material reaction efficiency greatly, helps improving output.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the solution of the present utility model;

wherein: 1. 2, a reactor, 3, a stirring device, 4, a reflux condenser, 5, a liquid-solid mixed liquid feed inlet, 6, a liquid feed inlet, 7, a gas outlet, 8, a reflux inlet, 9, an overflow port, 10, a first flowmeter, 11, a liquid-solid mixed feed pipe, 12, a liquid feed pipe, 13, a reflux pipe, 14, a first centrifugal machine, 15, a second centrifugal machine, 16, a pump, 17, a semi-finished product feed inlet, 18, a semi-finished product feed pipe, 19, a heat preservation jacket, 191, a temperature regulating medium inlet, 192, a temperature regulating medium outlet, 20, a pressure sensor, 21 and a temperature sensor.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Example 1: a continuous liquid-solid reaction device comprises a liquid-solid mixer 1, a reactor 2, a stirring device 3, a reflux condenser 4 and a post-treatment component; the stirring device 3 is arranged in the reactor 2; a liquid-solid mixed liquid feed inlet 5 and a liquid feed inlet 6 are formed in one side of the reactor 2, a gas outlet 7, a reflux inlet 8 and an overflow port 9 are sequentially formed in the other side of the reactor from top to bottom, an outlet of the liquid-solid mixer 1 is connected with a first flowmeter 10 and then connected with the liquid-solid mixed liquid feed inlet 5 on the reactor 2, and the liquid-solid mixed liquid feed inlet 5 is connected with a liquid-solid mixed feed pipe 11 in the reactor 2; the liquid feed inlet 6 is connected with a liquid feed pipe 12 in the reactor 2, and the outlet of the liquid feed pipe 12 is connected to the liquid-solid mixing feed pipe 11; the gas outlet 7 is connected to the reflux condenser 4, the liquid phase outlet of the reflux condenser 4 is connected to the reflux port 8, and the reflux port 8 is connected with a reflux pipe 13 in the reactor 2; the overflow port 9 is connected with a post-treatment assembly, the post-treatment assembly comprises two groups of centrifuges, the two groups of centrifuges comprise a first centrifuge 14 and a second centrifuge 15, when the reaction system in the reactor 2 reaches dynamic balance, the reacted materials are divided into two branches from the overflow port 9 and are led into the first centrifuge 14 and the second centrifuge 15, the first centrifuge 14 and the second centrifuge 15 separate solid from liquid, and the separated solid is led into the liquid-solid mixer 1 for use; the separated liquid outlet is divided into two branches, one branch is connected into a finished product bin through a pump 16, and the other branch is connected into a semi-finished product feeding port 17 at the top of the reactor 2 through the pump; the semi-finished product feeding port 17 is connected with a semi-finished product feeding pipe 18 inside the reactor; the liquid-solid mixing feed pipe 11 and the semi-finished product feed pipe 18 are vertically inserted into the reactor 2 and are arranged at two sides of the stirring equipment 3;

in order to facilitate the regulation of the temperature of the reaction system, the periphery of the reactor is provided with a heat-preserving jacket 19; the bottom of the heat preservation jacket is provided with a temperature-adjusting medium inlet 191, and the top of the heat preservation jacket is provided with a temperature-adjusting medium outlet 192.

For monitoring the condition of the reaction system in real time, the top of the reactor is provided with a pressure sensor 20 and a temperature sensor 21.

The stirring equipment comprises a stirring motor, a stirring rod and a stirring paddle, wherein the stirring motor is arranged outside the reactor, the stirring motor is connected to the top of the stirring rod, the stirring paddle is connected to the bottom of the stirring rod, and the outlets of the liquid-solid mixing feed pipe and the semi-finished product feed pipe are located above the stirring paddle.

When the reactor is practically applied, liquid and solid are respectively and continuously added into the reactor from a liquid feed inlet and a liquid-solid mixed liquid feed inlet, the liquid-solid two phases can be rapidly dispersed and mixed by stirring, and the reaction can be rapidly carried out, when the reaction system reaches dynamic balance, the materials in the reactor are continuously discharged from an overflow port, the solid and the liquid are obtained after separation by a centrifugal machine, the solid is often solid raw materials which are not completely reacted, a catalyst or a mixture of the two materials, the solid is returned to a liquid-solid mixer and is applied to the reaction, when the continuous liquid-solid reactor is started or the reaction is unstable, the liquid product obtained by the centrifugal separation can be unqualified, and the semi-finished liquid material at the moment is transferred into the reactor by a pump to continue the reaction. When the reaction system is stable and the product is qualified, the liquid product separated by the centrifugal machine is discharged to a finished product bin and is not returned to the reactor. Since the continuous reaction is carried out in the reactor, and the continuous centrifugal process is influenced by the discharging process in the operation of the centrifugal machines, two centrifugal machines are designed here to ensure that the centrifugal treatment process is not interrupted.

The scheme provided by the utility model can be applicable in a large amount of liquid-solid reaction material continuous reaction to be applicable to the more sticky reaction of intermediate state material, the continuous aftertreatment system who gets into the design of liquid-solid mixing system after the reaction reaches the quick, effectual continuous separation of liquid-solid, thereby reaches solid raw materials and recycles, and the product liquid raw materials shifts into the reaction of next step, has improved material reaction efficiency greatly, helps improving output.

As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. A continuous liquid-solid reaction device is characterized in that: comprises a liquid-solid mixer, a reactor, stirring equipment, a reflux condenser and a post-treatment component; the stirring equipment is arranged in the reactor; a liquid-solid mixed liquid feed inlet and a liquid feed inlet are formed in one side of the reactor, a gas outlet, a reflux port and an overflow port are sequentially formed in the other side of the reactor from top to bottom, an outlet of the liquid-solid mixer is connected with a first flowmeter and then connected with the liquid-solid mixed liquid feed inlet on the reactor, and the liquid-solid mixed liquid feed inlet is connected with a liquid-solid mixed feed pipe in the reactor; the liquid feeding hole is connected with a liquid feeding pipe in the reactor, and an outlet of the liquid feeding pipe is connected to the liquid-solid mixing feeding pipe; the gas outlet is connected to the reflux condenser, the liquid phase outlet of the reflux condenser is connected to the reflux port, and the reflux port is connected with a reflux pipe in the reactor; the overflow port is connected with the post-treatment assembly, the outlet of the post-treatment assembly is divided into a solid outlet and a liquid outlet, the solid outlet is connected with the liquid-solid mixer, the liquid outlet of the post-treatment assembly is divided into two branches, one branch is connected with the finished product bin, the other branch is connected with a semi-finished product feeding port at the top of the reactor, and the semi-finished product feeding port is connected with a semi-finished product feeding pipe in the reactor; the liquid-solid mixing feeding pipe and the semi-finished product feeding pipe are vertically inserted into the reactor and are arranged on two sides of the stirring equipment.

2. The continuous liquid-solid reaction apparatus according to claim 1, wherein: the periphery of the reactor is provided with a heat-insulating jacket; the bottom of the heat preservation jacket is provided with a temperature-adjusting medium inlet, and the top of the heat preservation jacket is provided with a temperature-adjusting medium outlet.

3. The continuous liquid-solid reaction apparatus according to claim 2, wherein: the top of the reactor is provided with a pressure sensor and a temperature sensor.

4. A continuous liquid-solid reaction apparatus according to claim 3, characterized in that: the stirring equipment comprises a stirring motor, a stirring rod and a stirring paddle, wherein the stirring motor is arranged outside the reactor, the stirring motor is connected to the top of the stirring rod, the stirring paddle is connected to the bottom of the stirring rod, and the outlets of the liquid-solid mixing feed pipe and the semi-finished product feed pipe are located above the stirring paddle.

5. The continuous liquid-solid reaction apparatus according to any one of claims 1 to 4, wherein: the post-treatment assembly comprises at least one group of centrifuges, when the reaction system in the reactor reaches dynamic balance, the reacted materials are led into the centrifuges from the overflow port, the centrifuges separate solid from liquid, and the separated solid is led into a liquid-solid mixer for use; the liquid outlet separated by the centrifugal machine is divided into two branches, one branch is connected into a finished product bin through a pump, and the other branch is connected into a semi-finished product feeding port at the top of the reactor through the pump.