CN217829951U

CN217829951U - Organized waste gas absorption device of resin reaction kettle

Info

Publication number: CN217829951U
Application number: CN202122025418.6U
Authority: CN
Inventors: 施林生; 陈增红; 宋康群; 何刚
Original assignee: Changzhou Hualing New Material Co ltd
Current assignee: Changzhou Hualing New Material Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-11-18
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to a resin reation kettle organized waste gas absorbing device belongs to the technical field of coating production processing equipment, it includes reation kettle and the blast pipe that communicates with the reation kettle inner chamber, be equipped with the condenser pipe on the blast pipe, one section that reation kettle was kept away from to the blast pipe is the outlet duct, the mouth of pipe of outlet duct is equipped with the breathing pipe, the mouth of pipe of outlet duct orientation breathing pipe is located the mouth of pipe of breathing pipe towards the outlet duct, form the clearance that communicates with the external environment between the inner wall of breathing pipe and the outer wall of outlet duct, the one end that the blast pipe was kept away from to the breathing pipe is connected with negative-pressure air fan. This application is through the mouth of pipe that makes the breathing pipe simultaneously with outside air and outlet duct intercommunication, and under the stable condition of reation kettle internal gas pressure, the negative pressure kinetic energy major part in the breathing pipe unloads to the exterior space through the gap between breathing pipe and outlet duct, and is minimum to reation kettle to the effect in the buffer tank, has the gas that makes in the exhaust pipe and obtains abundant time and carry out the condensation and retrieve to improve the effect of the rate of recovery of raw materials.

Description

Organized waste gas absorption device of resin reaction kettle

Technical Field

The application relates to the technical field of coating production and processing equipment, in particular to an organized waste gas absorption device of a resin reaction kettle.

Background

Resin reaction is an important link in the production process of the coating, and the resin reaction is usually carried out under the heating condition, so that a large amount of small-molecular organic waste gas is easily generated, and the risk of causing air environmental pollution is caused.

In order to improve the environmental protection of paint production, the resin reaction kettle in the related art is usually provided with an exhaust pipe for discharging waste gas, one end of the exhaust pipe is connected with a negative pressure fan, and the negative pressure fan provides negative pressure wind energy for the exhaust pipe so that the organic waste gas generated by the reaction can timely and quickly leave the reaction kettle. Besides organic waste gas, part of the gas in the reaction kettle still contains gasified molecules formed by heating the resin raw material, so that the exhaust pipe is also provided with a condenser at one end.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the negative pressure wind energy can make the air in the reaction kettle quickly enter the exhaust pipe and leave the reaction kettle, the gasified molecules of part of the resin raw materials are sucked away by the negative pressure before condensation and backflow, and are treated together with the organic waste gas, so that the loss and waste of the resin raw materials are caused, and when the yield is large, the waste of the raw materials is larger.

SUMMERY OF THE UTILITY MODEL

In order to improve the extravagant problem of raw materials that negative pressure wind energy caused, this application provides an organized waste gas absorbing device of resin reation kettle.

The application provides a organized waste gas absorbing device of resin reation kettle adopts following technical scheme:

the utility model provides an organized waste gas absorbing device of resin reaction cauldron, its includes reation kettle and the blast pipe that communicates with the reation kettle inner chamber, be equipped with the condenser pipe on the blast pipe, reation kettle's one section is kept away from to the blast pipe is the outlet duct, the mouth of pipe of outlet duct is equipped with the breathing pipe, the mouth of pipe that the outlet duct was towards the breathing pipe is located the mouth of pipe of breathing pipe towards the outlet duct, form the clearance that communicates with the external environment between the inner wall of breathing pipe and the outer wall of outlet duct, the one end that the blast pipe was kept away from to the breathing pipe is connected with negative-pressure air fan.

Through adopting above-mentioned technical scheme, the mouth of pipe of breathing pipe communicates with outside air and outlet duct simultaneously, so under the stable condition of reation kettle internal gas pressure, the negative pressure kinetic energy in the breathing pipe mostly unloads to the outside space through the gap between breathing pipe and outlet duct, and is minimum to reation kettle to the effect in the buffer tank for gas obtains abundant time to carry out the condensation and retrieves, has improved the rate of recovery of raw materials effectively.

Optionally, a support frame is arranged at the pipe orifice of the air suction pipe facing the air discharge pipe, one end of the support frame far away from the air suction pipe is fixed relative to the air outlet pipe, and the air outlet pipe and the air suction pipe are coaxially arranged through the support frame.

Through adopting above-mentioned technical scheme, make the relative position relatively fixed of breathing pipe and blast pipe to the relative position stability of the two during operation has been improved.

Optionally, a buffer tank is communicated between the exhaust pipe and the air outlet pipe.

By adopting the technical scheme, the organic gas can be further kept still and liquefied in the buffer tank, so that the recovery rate of the raw material is further improved.

Optionally, the buffer tank is communicated with a plurality of reaction kettles.

By adopting the technical scheme, the utilization efficiency of equipment is improved, and the production of large-batch resin coatings is facilitated.

Optionally, the bottom of the buffer tank is provided with a liquid collecting hopper, and the bottom of the liquid collecting hopper is provided with a liquid outlet.

Through adopting above-mentioned technical scheme, can collect so that reutilization through opening the liquid outlet with liquefied organic raw materials in the buffer tank after single batch production.

Optionally, the condenser pipe has a plurality of capillaries running through along length direction, a cavity for the circulation of the condensate is formed between the capillaries and the inner wall of the condenser pipe, and each capillary is communicated with the exhaust pipe.

By adopting the technical scheme, the contact area of the gas and the condensate is enlarged so as to improve the condensation recovery rate of the raw material.

Optionally, the capillary tube is corrugated.

By adopting the technical scheme, the contact area of the gas and the condensate is further enlarged, and the interaction time of the gas and the condensate is prolonged so as to improve the condensation recovery rate of the raw material.

Optionally, the height of the exhaust pipe between one end of the condensation pipe, which is far away from the reaction kettle, and the buffer tank is monotonically decreased, and the highest point of the exhaust pipe at this section is provided with a cleaning pipe.

Through adopting above-mentioned technical scheme, after batch production, the accessible scavenge pipe washs the blast pipe to wash away the organic waste material of blast pipe inside adhesion.

Optionally, the cleaning pipe is rotatably connected with an adjusting ball valve, the adjusting ball valve includes a valve core and a plug, a rotation plane of the valve core is parallel to a plane where an axis of the exhaust pipe is located, and the plug is used for plugging a passage in the valve core.

Through adopting above-mentioned technical scheme, when the shutoff stopper is connected with the case, adjust the ball valve and play the effect of closing the scavenge pipe, take off the shutoff stopper alright wash through adjusting the ball valve and injecting into the clear water in to the blast pipe, rotate the direction or the angle of adjusting the ball valve in order to adjust the rivers that get into the blast pipe among the cleaning process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the communication but unsealed arrangement of the air suction pipe and the air outlet pipe, the negative pressure wind energy in the air suction pipe cannot directly and effectively absorb the gas in the inner cavity of the reaction kettle, so that the condensation time of the organic gas is delayed, the organic gas raw material is conveniently recovered, and the recovery rate of the raw material is improved;

2. through the arrangement of the capillary tube, the contact area of the gas and the condensate is enlarged, so that the condensation recovery rate of the raw material is improved.

Drawings

FIG. 1 is a schematic structural diagram of an organized exhaust gas absorption device for embodying a resin reaction vessel in the example of the present application.

Fig. 2 is a schematic view of a mounting structure for embodying an air outlet pipe and an air suction pipe in the embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying a condenser tube in the embodiment of the present application.

Description of reference numerals: 1. a reaction kettle; 11. an exhaust pipe; 111. an air outlet pipe; 12. cleaning the tube; 13. adjusting a ball valve; 131. a valve core; 132. blocking; 2. a condenser tube; 21. a capillary tube; 3. a buffer tank; 31. a liquid collecting hopper; 32. a liquid outlet; 4. an air intake duct; 41. a support frame; 5. and a nitrogen pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses organized waste gas absorbing device of resin reation kettle, as shown in fig. 1, including reation kettle 1 and buffer tank 3, the intercommunication has blast pipe 11 between the two, and blast pipe 11 is used for transmitting the organic waste gas that produces in reation kettle 1 to buffer tank 3. The buffer tank 3 is provided with an air outlet pipe 111 and an air suction pipe 4, the air outlet pipe 111 is fixedly connected with the buffer tank 3, one end of the air suction pipe 4, which is far away from the buffer tank 3, is connected with a negative pressure fan (not shown in the figure), and the negative pressure fan provides negative pressure wind energy into the air suction pipe 4.

As shown in fig. 1 and 2, a supporting frame 41 is fixedly connected to one end of the air suction pipe 4 facing the buffer tank 3, one end of the supporting frame 41 far away from the air suction pipe 4 is fixed to the buffer tank 3 through a bolt, at this time, the air outlet pipe 111 is coaxial with the air suction pipe 4, and the pipe orifice of the air outlet pipe 111 extends into the pipe orifice of the air suction pipe 4 by about 15cm, and a gap between the air outlet pipe and the air suction pipe is communicated with the outside air. In order to improve the utilization rate of the equipment, a single buffer tank 3 is communicated with a plurality of reaction kettles 1 through a plurality of exhaust pipes 11, and organic gas generated in the reaction kettles 1 flows from the reaction kettles 1 to the buffer tank 3 through the exhaust pipes 11 under the influence of air pressure and temperature, and is finally collected in the buffer tank 3. In the process, the gas is not communicated with the outside air before reaching the air outlet pipe 111, so that the negative pressure air in the air inlet pipe 4 has almost no air pressure influence on the chamber between the reaction kettle 1 and the air outlet pipe 111, the negative pressure kinetic energy is discharged into the outside air through the gap between the air outlet pipe 111 and the air inlet pipe 4, and the air pressure power for driving the gas to advance is mainly the positive pressure generated by increasing the gas in the reaction kettle 1 or expanding the gas due to heating.

As shown in fig. 1 and 3, a condensation pipe 2 is externally fitted to the exhaust pipe 11 near the reaction vessel 1, and the condensation pipe 2 is used to re-liquefy and reflux the gasified resin raw material escaping from the reaction vessel 1. One end of the condensation pipe 2 close to the reaction kettle 1 is provided with a water inlet for flowing in condensed water, and the other end of the condensation pipe far away from the reaction kettle 1 is provided with a water outlet for flowing out the condensed water. The part of the exhaust pipe 11 in the condensation pipe 2 is divided into a plurality of corrugated capillaries 21, and the capillaries 21 can strengthen the contact between the gas discharged from the reaction kettle 1 and the condensed water, thereby improving the recovery rate of the resin raw material.

As shown in fig. 1, the gasified resin raw material cannot be completely recovered by condensation liquefaction, in order to further reduce the raw material loss, the height of the exhaust pipe 11 located between the condensation pipe 2 and the buffer tank 3 tends to decrease monotonically, part of the resin raw material in the gas leaving the condensation pipe 2 continues to liquefy before reaching the exhaust pipe 111, the bottom of the buffer tank 3 is an integrally formed liquid collecting hopper 31, the bottom of the liquid collecting hopper 31 is provided with a liquid outlet 32, when the production is normally performed, the liquid outlet 32 is in a closed state, when the batch production is finished, the liquid collecting hopper 31 has accumulated some liquefied raw material mixture, and the liquefied raw material mixture is discharged through the liquid outlet 32 to be recycled.

As shown in fig. 1 and 3, the position of the exhaust pipe 11 directly above the condensation pipe 2 is the highest point of the exhaust pipe 11, a cleaning pipe 12 is communicated with the exhaust pipe, an adjusting ball valve 13 is arranged in the cleaning pipe 12, and the adjusting ball valve 13 comprises a valve core 131 and a blocking plug 132; the valve core 131 is spherical and can rotate in the cleaning pipe 12, the rotation plane of the valve core is parallel to the axis of the exhaust pipe 11, and the blocking plug 132 is screwed into the valve core 131 to realize the detachable connection of the valve core 131 and is used for blocking a passage in the valve core 131. While the reaction is proceeding, the purge pipe 12 is in a closed state. After mass production is finished, the plugging plug 132 is opened, the inner wall of the exhaust pipe 11 is cleaned by injecting water into the adjusting ball valve 13, and the adjusting ball valve 13 is rotated to adjust the direction or angle of water flow entering the exhaust pipe 11 in the cleaning process.

As shown in fig. 1, a nitrogen pipe 5 penetrates through the reaction kettle 1, the nitrogen pipe 5 is used for infusing nitrogen into the reaction kettle 1, the nitrogen can be used as a protective gas to improve the stability of the reaction in the reaction kettle 1, and the pressure in the reaction kettle 1 can be adjusted. After the reaction finishes and the coating is discharged, the reaction kettle 1 is closed, and then nitrogen is poured into the reaction kettle 1 to pressurize the reaction kettle, so that the organic waste gas in the reaction kettle 1 can be discharged.

The implementation principle of the organized waste gas absorption device of the resin reaction kettle in the embodiment of the application is as follows:

organic waste gas generated by resin reaction in the reaction kettle 1 is affected by air pressure and mixed with gasified resin raw material molecules to flow out of the reaction kettle 1 through the exhaust pipe 11, under the condensation action of the condensation pipe 2, part of the resin raw material is liquefied when meeting cold and flows back into the reaction kettle 1, the other part of the gasified raw material is continuously discharged to the buffer tank 3 along with the waste gas, a plurality of exhaust pipes 11 collect the gas into the buffer tank 3, the liquefied raw material from the condensation pipe 2 to the buffer tank 3 is accumulated at the bottom of the buffer tank 3, and the organic waste gas continuously flows to the exhaust pipe 111 and overflows from the exhaust pipe 111, and is sucked by negative pressure air flow of the air suction pipe 4 and conveyed to a waste gas treatment facility. The mouth of the air suction pipe 4 is simultaneously communicated with the outside air and the air outlet pipe 111, so that under the condition that the air pressure in the reaction kettle 1 is stable, most of the negative pressure kinetic energy in the air suction pipe 4 is discharged to the outside space through the gap between the air suction pipe 4 and the air outlet pipe 111, the effect on the reaction kettle 1 to the buffer tank 3 is extremely small, and the gas is condensed and recovered in sufficient time. The organic gas is in the air suction pipe 4 after flowing out of the air outlet pipe 111, so that air pollution is avoided. After the reaction in the reactor 1 is completed, water is introduced into the exhaust pipe 11 through the cleaning pipe 12 to clean the exhaust pipe 11, thereby removing part of the organic impurities in the exhaust pipe 11 and keeping the inside of the exhaust pipe 11 clean.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a organized waste gas absorbing device of resin reaction cauldron, includes reation kettle and blast pipe (11) with the reation kettle inner chamber intercommunication, be equipped with condenser pipe (2) on blast pipe (11), its characterized in that: one section that reation kettle was kept away from in blast pipe (11) is outlet duct (111), the mouth of pipe of outlet duct (111) is equipped with breathing pipe (4), the mouth of pipe of outlet duct (111) towards breathing pipe (4) is located breathing pipe (4) towards the mouth of pipe of outlet duct (111), form the clearance with the external environment intercommunication between the inner wall of breathing pipe (4) and the outer wall of outlet duct (111), the one end that blast pipe (11) were kept away from in breathing pipe (4) is connected with negative-pressure air fan.

2. The resin reactor organized exhaust gas absorption device according to claim 1, wherein: the mouth of pipe of breathing pipe (4) orientation blast pipe (11) is equipped with support frame (41), the one end that breathing pipe (4) were kept away from in support frame (41) is relatively fixed with outlet duct (111), outlet duct (111) pass through support frame (41) coaxial setting with breathing pipe (4).

3. The resin reactor organized exhaust gas absorption device according to claim 1, wherein: and a buffer tank (3) is communicated between the exhaust pipe (11) and the exhaust pipe (111).

4. A resin reactor organized exhaust gas absorption device according to claim 3, wherein: the buffer tank (3) is communicated with a plurality of reaction kettles.

5. A resin reactor organized exhaust gas absorption device according to claim 3, wherein: a liquid collecting hopper (31) is arranged at the bottom of the buffer tank (3), and a liquid outlet (32) is arranged at the bottom of the liquid collecting hopper (31).

6. The resin reactor organized exhaust gas absorption device according to claim 1, wherein: condenser pipe (2) link up along length direction and are equipped with a plurality of capillaries (21), form the cavity that supplies the condensate circulation between capillary (21) and condenser pipe (2) inner wall, every capillary (21) all communicate with blast pipe (11).

7. The resin reactor organized exhaust gas absorption device according to claim 6, wherein: the capillary (21) is corrugated.

8. A resin reactor organized waste gas absorption device according to claim 3, wherein: the height of an exhaust pipe (11) between one end of the condensation pipe (2) far away from the reaction kettle and the buffer tank (3) is monotonically decreased, and a cleaning pipe (12) is arranged at the highest point of the exhaust pipe (11).

9. The resin reactor organized exhaust gas absorption device according to claim 8, wherein: the cleaning pipe (12) is rotatably connected with an adjusting ball valve (13), the adjusting ball valve (13) comprises a valve core (131) and a blocking plug (132), the rotating plane of the valve core (131) is parallel to the plane where the axis of the exhaust pipe (11) is located, and the blocking plug (132) is used for blocking a passage in the valve core (131).