CN110773091A

CN110773091A - Chemical reaction kettle capable of improving reaction rate

Info

Publication number: CN110773091A
Application number: CN201810851854.9A
Authority: CN
Inventors: 熊贱林
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-30
Filing date: 2018-07-30
Publication date: 2020-02-11

Abstract

The invention discloses a chemical reaction kettle capable of improving reaction rate, which comprises a kettle body, wherein the bottom of the kettle body is sequentially connected with an air pump, an air drying device and a protective air source through an air inlet pipe; the stirring device comprises a stirring shaft and a stirring paddle arranged at the bottom end of the stirring shaft, the outer side of the upper half shaft of the stirring shaft is coaxially sleeved with a shaft barrel, a spring is arranged in the shaft barrel, the lower end of the spring is connected with the upper end of the lower half shaft of the stirring shaft, a silica gel layer used for sealing the spring is filled in the shaft barrel, and the upper part of the shaft barrel is welded and fixed with the side wall of the upper half shaft through a reinforcing rib. The invention ensures that the raw materials are carried out in the oxygen-isolated environment, prevents back suction, is uniformly mixed, improves the reaction rate and effect and leads the reaction to be more thorough.

Description

Chemical reaction kettle capable of improving reaction rate

Technical Field

The invention relates to chemical equipment, in particular to a chemical reaction kettle capable of improving reaction rate.

Background

The reaction kettle is a common chemical device, multiple chemical raw materials are usually added into the reaction kettle, and the multiple chemical raw materials are allowed to perform chemical reaction in the reaction kettle, so that a required reaction product is obtained. In the prior art, some reactants can react with substances in the air, such as oxygen, so that the chemical reaction which needs the reactants to participate in the reaction but does not need the oxygen needs to be carried out under the condition of isolating the air so as to avoid the influence of the air on the reaction.

Simultaneously, the agitator in reation kettle sets up the motor in the cauldron body top mostly, drives the rotatory stirring of the (mixing) shaft that stretches into in the agitator, and the manpower has been saved to this kind of stirring mode, but at the stirring in-process, when great to the stirring volume, the (mixing) shaft stirring is unstable, the phenomenon of rocking of non-stirring appears easily, influences the stirring quality, leads to stirring inhomogeneous.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provide a chemical reaction kettle which has the advantages of isolating oxygen from raw materials, preventing back suction, uniformly mixing, improving the reaction rate and effect and enabling the reaction to be more thorough.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a can improve reaction rate's chemical industry reation kettle, includes the cauldron body, is different with prior art: still be equipped with protection air supply, air pump, gaseous drying device and tail gas absorbing device, wherein:

cauldron body bottom is connected with air pump, gaseous drying device, protection air supply in proper order through the intake pipe, is equipped with the check valve between gaseous drying device and protection air supply, is equipped with gaseous flow control valve between air pump and the intake pipe, and cauldron body top is passed through the outlet duct and is connected with tail gas absorbing device, and fixed inverter motor that is provided with in the middle of cauldron body top, through the internal agitating unit of inverter motor drive cauldron, wherein:

the stirring device comprises a stirring shaft and a stirring paddle arranged at the bottom end of the stirring shaft, the outer side of the upper half shaft of the stirring shaft is coaxially sleeved with a shaft barrel, a spring is arranged in the shaft barrel, the spring is fixedly clamped inside the shaft barrel, the lower end of the spring is connected with the upper end of the lower half shaft of the stirring shaft, a silica gel layer used for sealing the spring is filled inside the shaft barrel, and the upper part of the shaft barrel is welded and fixed with the side wall of the upper half shaft through a reinforcing rib.

The protective gas in the protective gas source is nitrogen, argon or helium.

Compared with the prior art, the invention has the beneficial effects that:

1. protective gas enters the kettle body, and air in the kettle body is exhausted from the air outlet pipe to exhaust the air, so that the chemical reaction is carried out in an oxygen-isolated environment; the one-way valve prevents gas from flowing back, the gas flow control valve prevents mixed gas in the kettle from flowing back to the protective gas source, and meanwhile, the size of gas flow can be controlled;

2. the gas exhausted from the kettle body firstly passes through the tail gas absorption device, harmful gas is absorbed and then exhausted into the air, when the ventilation is stopped, the switch valve is firstly closed, and then the air pump is closed, so that the gas flow path is closed, and the phenomenon that the back suction occurs due to the fact that the pressure in the kettle body is too low is prevented;

3. the material enters the kettle body, the motor drives the upper half shaft to rotate, the upper half shaft drives the shaft barrel to rotate, the shaft barrel drives the lower half shaft to rotate through the spring, and finally the stirring paddle works and drives the raw materials to be uniformly mixed; when the rotating speed of the motor is reduced, the curling force applied to the spring is reduced, so that the length of the spring is extended to drive the lower half shaft and the stirring paddle to move downwards; similarly, when the rotational speed accelerates, the stirring rake up motion, and reciprocating of stirring rake, not only can turn the raw materials at horizontal position, can turn in the position from top to bottom moreover for mix more evenly, effectual reaction rate and the effect of having improved, make the reaction more thorough.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the chemical reaction kettle capable of increasing the reaction rate of the invention comprises a kettle body 1, a protective gas source 2, a gas pump 3, a gas drying device 4 and a tail gas absorption device 6; the bottom of the kettle body 1 is connected with an air inlet pipe 8, and the top of the kettle body 1 is connected with an air outlet pipe 7; the gas inlet pipe 8 is sequentially connected with the gas pump 3, the gas drying device 4 and the protective gas source 2 through pipelines, a one-way valve 5 is arranged between the gas drying device 4 and the protective gas source 2, and the gas outlet pipe 7 is also provided with the one-way valve 5; before the reaction, the protective gas in the protective gas source 2 enters the kettle body 1, and the air in the kettle body 1 is exhausted from the air outlet pipe 7 to exhaust the air, so that the chemical reaction is carried out in an air-isolated environment; wherein the check valve 5 prevents gas backflow; a gas flow control valve is arranged between the gas pump 3 and the gas inlet pipe 8; when in use, the gas flow control valve prevents the mixed gas in the kettle body 1 from reversely flowing into the protective gas return source 2, and simultaneously can control the gas flow; the protective gas in the protective gas source 2 is nitrogen, argon or helium; the gas outlet pipe 7 is connected with a tail gas absorption device 6; in the work, the gas exhausted from the kettle body 1 firstly passes through the tail gas absorption device 6, harmful gas is absorbed and then exhausted into the air, when the ventilation is stopped, the switch valve 5 is firstly closed, then the air pump 3 is closed, so that the gas flow path is closed, and the phenomenon that the back suction is caused by the over-low air pressure in the kettle body 1 is prevented; a motor 9 is fixedly arranged at the middle position of the top of the kettle body 1, the motor 9 is a variable frequency motor, and the motor 9 drives a stirring device, wherein the stirring device comprises a stirring shaft and a stirring paddle 15, and the stirring shaft comprises an upper half shaft 10 and a lower half shaft 16; a shaft barrel 12 is coaxially sleeved outside the upper half shaft 10, a spring 14 is arranged inside the shaft barrel 12, wherein the upper end of a lower half shaft 16 is inserted into an inner barrel of the spring 14, the spring 14 is fixedly clamped inside the shaft barrel 12, the lower end of the spring 14 is connected with the upper end of the lower half shaft 16, and a silica gel layer 13 for sealing the spring is filled inside the shaft barrel 12; a reinforcing rib 7 is arranged above the shaft barrel 12, and the reinforcing rib 7 is welded and fixed with the side wall of the upper half shaft 10; the bottom end of the lower half shaft 16 is provided with two groups of stirring paddles 15; in the working process, materials enter the kettle body 1, the motor 9 drives the upper half shaft 10 to rotate, the upper half shaft 10 drives the shaft barrel 12 to rotate, the shaft barrel 12 drives the lower half shaft 16 to rotate through the spring 14, finally, the stirring paddle 15 works, and the stirring paddle 15 drives the raw materials to be uniformly mixed; when the rotating speed of the motor 9 is reduced, the force of the spring 14 subjected to the rolling is reduced, so that the length of the spring 14 is extended, and the lower half shaft 16 and the stirring paddle 15 are driven to move downwards; similarly, when the rotational speed accelerates, the stirring paddle 15 moves upwards, and the stirring paddle 15 reciprocates, not only can turn over the raw materials at horizontal position, can turn over at the position from top to bottom in addition for mix more evenly, the effectual reaction rate and effect that has improved, make the reaction more thorough.

Claims

1. The utility model provides a can improve reaction rate's chemical industry reation kettle, includes cauldron body, characterized by: still be equipped with protection air supply, air pump, gaseous drying device and tail gas absorbing device, wherein:

the bottom of the kettle body is sequentially connected with an air pump, an air drying device and a protective air source through an air inlet pipe, a one-way valve is arranged between the air drying device and the protective air source, an air flow control valve is arranged between the air pump and the air inlet pipe, the top of the kettle body is connected with a tail gas absorption device through an air outlet pipe, a variable frequency motor is fixedly arranged in the middle of the top of the kettle body, and a stirring device in the kettle body is driven by the variable frequency motor; the stirring device comprises a stirring shaft and a stirring paddle arranged at the bottom end of the stirring shaft, the outer side of the upper half shaft of the stirring shaft is coaxially sleeved with a shaft barrel, a spring is arranged in the shaft barrel, the spring is fixedly clamped inside the shaft barrel, the lower end of the spring is connected with the upper end of the lower half shaft of the stirring shaft, a silica gel layer used for sealing the spring is filled inside the shaft barrel, and the upper part of the shaft barrel is welded and fixed with the side wall of the upper half shaft through a reinforcing rib.

2. The chemical reaction kettle of claim 1, wherein: the protective gas in the protective gas source is nitrogen, argon or helium.