CN212663539U

CN212663539U - Solvent reflux dehydration far infrared heating resin reaction device

Info

Publication number: CN212663539U
Application number: CN202021058381.6U
Authority: CN
Inventors: 王文利; 邓英全
Original assignee: Ningxia Xingbang Baofeng Coating Technology Co ltd
Current assignee: Ningxia Xingbang Baofeng Coating Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-03-09
Anticipated expiration: 2030-06-10

Abstract

A far infrared heating resin reaction device for solvent reflux dehydration comprises a reaction kettle and a reflux unit, wherein a jacket is arranged on the outer side of the annular wall of the kettle body, the jacket and the outer wall of the kettle body are integrally formed, an interlayer is formed between the jacket and the kettle body, a far infrared heating plate is inserted in the jacket, a spiral ascending cooling coil is arranged in the kettle body, the reflux unit comprises a tubular cooler and a separation tank, in the reaction device, a solvent can be added into the kettle through a raw material inlet, the boiling point of the solvent is lower than that of water, the solvent and water are condensed into liquid in the tubular cooler in the volatilization process of the solvent, and enter the separation tank, the solvent and the water are layered in the separation tank, the solvent is positioned above a water layer, then the solvent enters the kettle body from an outlet at the upper part of the separation tank again, so that the circular dehydration is realized, no heat is output after the infrared heating plate is powered off, and the cooling medium in the cooling coil synchronously cools, the design of bidirectional cooling improves the cooling speed of the materials in the kettle.

Description

Solvent reflux dehydration far infrared heating resin reaction device

Technical Field

The utility model relates to a paint production facility technical field, in particular to solvent backward flow dehydration far infrared heating resin reaction unit.

Background

The resin is a core raw material of the synthetic paint, the quality of the resin directly determines the quality of the paint, and the reaction kettle of the synthetic resin is a key device for determining the quality of the resin. The synthetic reation kettle of current resin adopts the conduction oil heating usually, installation serpentine coil in reation kettle, the conduction oil circulates in the dress serpentine coil, with the material in the heating reation kettle, owing to adopt the heating methods of conduction oil, reation kettle stops the back of heating, the conduction oil of circulation is blocked, and the conduction oil of surviving in serpentine coil still can continuously be the material in the reation kettle provides the heat, make the temperature in the reation kettle can not reduced rapidly, and then influence synthetic resin's quality. Water is generated in the process of resin synthesis, and the water needs to be drained in time in the reaction process.

Disclosure of Invention

In view of the above, it is necessary to provide a far infrared heating resin reaction apparatus for solvent reflux dehydration.

The utility model provides a solvent backward flow dehydration far infrared heating resin reaction unit, includes reation kettle, backward flow unit, reation kettle includes the cauldron body, presss from both sides the cover, far infrared hot plate, cooling coil, evacuation pipeline, the rampart outside of the cauldron body is equipped with presss from both sides the cover, press from both sides the outer wall integrated into one piece of cover and the cauldron body, it is equipped with far infrared hot plate to press from both sides to form between the cover and the cauldron body, is equipped with spiral rising's cooling coil in the cauldron body, is equipped with the coolant export on the upper portion of the cauldron body, is equipped with the coolant entry in the lower part of the cauldron body, the upper end export and the coolant exit linkage of cooling coil, the lower extreme entry and the coolant entry linkage of cooling coil, still be equipped with raw materials entry, resin outlet at the top of the cauldron body, evacuation pipeline is located the top of the cauldron body, the lower extreme and the cauldron body inner chamber intercommunication of evacuation pipeline, the knockout drum, the exit linkage of entry and the evacuation pipeline upper end of tubulation cooler installs first valve on the pipeline between tubulation cooler and evacuation pipeline, the exit of tubulation cooler and the entry linkage of knockout drum, the export on knockout drum upper portion and the raw materials entry linkage of the cauldron body install the second valve on the pipeline between knockout drum and the cauldron body, and the export of knockout drum lower part is connected with the one end of drain pipe, installs the third valve on the drain pipe.

Preferably, the reflux unit further comprises a solvent replenishing tank, an outlet of the solvent replenishing tank is connected with an inlet of the separation tank, and a fourth valve is installed on a pipeline between the solvent replenishing tank and the separation tank.

Preferably, a sampling pipe is arranged at the top of the kettle body, and a sampling valve is arranged on the sampling pipe.

Preferably, a searchlight is installed at the upper part of the inner side of the kettle body.

Preferably, a sight glass is arranged at the top of the kettle body.

Preferably, a manhole is arranged at the top of the kettle body, and a manhole cover covers the manhole.

Preferably, a thermometer is arranged at the top of the kettle body.

Preferably, the far infrared hot plate is a plurality of, and a plurality of far infrared hot plates are along the circumference equipartition of intermediate layer.

Preferably, reation kettle still includes the stirring part, the stirring part is installed at cauldron body top, the stirring part includes (mixing) shaft, stirring subassembly, the (mixing) shaft stretches into cauldron internal chamber from the top of the cauldron body, the upper end of (mixing) shaft is rotated by motor drive, the stirring subassembly is installed to the lower extreme of (mixing) shaft, the (mixing) shaft sets up with the cooling coil is coaxial.

Preferably, solvent backward flow dehydration far infrared heating resin reaction unit still includes negative-pressure air fan, the upper end of evacuation pipeline has two exports, an export of evacuation pipeline and the entry linkage of shell and tube cooler, another export of evacuation pipeline and negative-pressure air fan's entry linkage.

The utility model discloses in, accessible raw materials entry adds the solvent to the cauldron in, the boiling point of solvent is lower than the boiling point of water, and in the volatile in-process of solvent will carry aqueous vapor entering tubulation cooler, the solvent condenses into liquid with the water to get into the knockout drum, in the knockout drum, solvent and moisture layering, the solvent is located the top of water layer, then the export reentrant cauldron body on solvent follow knockout drum upper portion again realizes the cycle dehydration.

The utility model discloses in, install the far infrared hot plate and heat the internal material of cauldron in the intermediate layer between the cover and the cauldron body of pressing from both sides, the internal cooling coil who is equipped with spiral shell screwing in of cauldron, cooling coil circulation cooling medium cools off the internal material of cauldron, after the infrared hot plate outage, there is not heat output, compare with current conduction oil heating mode, there is not the heat source to reserve, the cooling medium in the cooling coil cools down to the material in the cauldron in step simultaneously, the material cooling rate in the cauldron has been improved greatly in this kind of two-way design of cooling.

Drawings

FIG. 1 is a schematic structural diagram of the solvent reflux dehydration far infrared heating resin reaction device.

In the figure: the reaction kettle comprises a reaction kettle 10, a kettle body 11, a cooling medium outlet 111, a cooling medium inlet 112, a raw material inlet 113, a resin outlet 114, a jacket 12, a far infrared heating plate 13, a cooling coil 14, an emptying pipeline 15, a sampling pipe 16, a sampling valve 161, a searchlight 17, a sight glass 18, a manhole cover 19, a stirring part 110, a stirring shaft 1101, a stirring assembly 1102, a first stirrer 11021, a second stirrer 11022, a reflux unit 20, a tubular cooler 21, a separation tank 22, a solvent supplementing tank 23 and a negative pressure fan 30.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1, an embodiment of the present invention provides a solvent reflux dehydration far infrared heating resin reaction apparatus, including a reaction kettle 10 and a reflux unit 20, the reaction kettle 10 includes a kettle body 11, a jacket 12, a far infrared heating plate 13, a cooling coil 14 and an evacuation pipeline 15, the jacket 12 is arranged on the outer side of the annular wall of the kettle body 11, the jacket 12 and the outer wall of the kettle body 11 are integrally formed, an interlayer is formed between the jacket 12 and the kettle body 11, the far infrared heating plate 13 is inserted into the jacket 12, the kettle body 11 is internally provided with the spiral ascending cooling coil 14, the upper portion of the kettle body 11 is provided with a cooling medium outlet 111, the lower portion of the kettle body 11 is provided with a cooling medium inlet 112, the upper end outlet of the cooling coil 14 is connected with the cooling medium outlet 111, the lower end inlet of the cooling coil 14 is connected with the cooling medium inlet 112, the top of the kettle body 11 is further provided with, the evacuation pipeline 15 is located the top of the kettle body 11, the lower extreme of evacuation pipeline 15 communicates with the 11 inner chambers of the kettle body, the backward flow unit 20 includes a tubular cooler 21, the knockout drum 22, the entry of tubular cooler 21 and the exit linkage of evacuation pipeline 15 upper end, install first valve on the pipeline between tubular cooler 21 and evacuation pipeline 15, the export of tubular cooler 21 and the entry linkage of knockout drum 22, the export on knockout drum 22 upper portion is connected with the raw materials entry 113 of the kettle body 11, install the second valve on the pipeline between knockout drum 22 and the kettle body 11, the export of knockout drum 22 lower part is connected with the one end of drain pipe, install the third valve on the drain pipe.

The utility model discloses in, accessible raw materials entry 113 adds the solvent in to the cauldron, and the boiling point of solvent is lower than the boiling point of water, and in the volatile in-process of solvent will carry aqueous vapor entering tubulation cooler 21, the solvent condenses into liquid with water to get into knockout drum 22, in knockout drum 22, solvent and moisture layer, solvent are located the top of water layer, then the solvent reentries cauldron body 11 from the export on knockout drum 22 upper portion again, realizes the cycle dehydration.

The utility model discloses in, install the material of far infrared heating board 13 in to the cauldron body 11 in the intermediate layer between the cover 12 of pressing from both sides and the cauldron body 11 and heat, be equipped with spiral shell screwing in's cooling coil 14 in the cauldron body 11, cooling coil 14 circulation cooling medium cools off the material in the cauldron body 11, after the infrared heating board outage, there is not heat output, compare with current conduction oil heating mode, there is not the heat source to reserve, cooling medium in the cooling coil 14 simultaneously cools down to the material in the cauldron in step, the material cooling rate in the cauldron has been improved greatly in this kind of two-way design of cooling.

Referring to fig. 1, further, the reflux unit 20 further includes a solvent replenishing tank 23, an outlet of the solvent replenishing tank 23 is connected to an inlet of the separation tank 22, and a fourth valve is installed on a pipe between the solvent replenishing tank 23 and the separation tank 22.

In this embodiment, in the case where a small amount of solvent needs to be replenished into the autoclave body 11, the solvent may be directly replenished into the autoclave body 11 through the solvent replenishing tank 23.

Referring to fig. 1, further, a sampling pipe 16 is disposed on the top of the kettle 11, and a sampling valve 161 is disposed on the sampling pipe 16.

Referring to fig. 1, a searchlight 17 is further installed at an upper portion of the inner side of the kettle body 11.

Referring to fig. 1, a sight glass 18 is further provided on the top of the kettle 11.

Referring to fig. 1, a manhole is further provided at the top of the kettle 11, and a manhole cover 19 is covered on the manhole.

Referring to fig. 1, further, a thermometer is arranged on the top of the kettle body 11.

Referring to fig. 1, further, the plurality of far infrared heating plates 13 are uniformly distributed along the circumference of the interlayer.

Referring to fig. 1, further, the reaction kettle 10 further includes a stirring component 110, the stirring component 110 is installed at the top of the kettle 11, the stirring component 110 includes a stirring shaft 1101 and a stirring assembly 1102, the stirring shaft 1101 extends into the inner cavity of the kettle 11 from the top of the kettle 11, the upper end of the stirring shaft 1101 is driven by a motor to rotate, the stirring assembly 1102 is installed at the lower end of the stirring shaft 1101, and the stirring shaft 1101 is coaxial with the cooling coil 14.

Referring to fig. 1, further, the solvent reflux dehydration far infrared heating resin reaction device further comprises a negative pressure fan 30, the upper end of the evacuation pipeline 15 is provided with two outlets, one outlet of the evacuation pipeline 15 is connected with the inlet of the tube nest cooler 21, and the other outlet of the evacuation pipeline 15 is connected with the inlet of the negative pressure fan 30.

In a specific embodiment, the outer wall of the jacket 12 is covered with an insulating layer, which is an asbestos plate.

In a specific embodiment, the stirring assembly 1102 includes a first stirrer 11021 and a second stirrer 11022, the lower end of the stirring shaft 1101 is sequentially provided with the first stirrer 11021 and the second stirrer 11022 from top to bottom, the first stirrer 11021 is two first stirring rods, one end of each first stirring rod is connected with the annular wall of the stirring shaft 1101, the other end of each first stirring rod extends along the radial direction of the stirring shaft 1101, the two first stirring rods are uniformly distributed along the circumferential direction of the stirring shaft 1101, the cross section of each first stirring rod is elliptical, the connecting end of each first stirring rod and the connecting end of the stirring shaft 1101 are fixed, the free end of each first stirring rod is twisted by 45 degrees along the axial direction, the second stirrer 11022 is three second stirring rods, the cross section of each second stirring rod is elliptical, the three second stirring rods are uniformly distributed along the circumferential direction of the stirring shaft 1101, one end of each second stirring rod is connected with the annular wall of the stirring shaft 1101, and the other end of each second stirring rod extends along the radial direction of the stirring, and is bent clockwise into an arc shape.

The cooling medium in the cooling coil 14 advances to the height for low, can avoid cooling coil 14 to have the bubble, influences cooling coil 14's refrigeration effect, because the material that the temperature is high in the cauldron is in upper portion all the time, and the material that the temperature is low in the cauldron is in the lower part all the time, and the cooling medium advances to the height and can aggravate this kind of cauldron material temperature distribution.

In this embodiment, the first stirrer 11021 is designed in a shape that allows the materials in the kettle 11 to flow from top to bottom, and the second stirrer 11022 is designed in a shape that allows the materials in the kettle 11 to flow in a horizontal direction, thereby promoting the sufficient mixing of the materials in the kettle 11 and breaking the above-mentioned unfavorable distribution of the temperature in the kettle. Because the cooling medium in the cooling coil 14 flows upwards relative to the kettle body 11, the material in the kettle body 11 flows downwards relative to the kettle body 11, and the cooling medium in the cooling coil 14 and the material in the kettle body 11 flow in the reverse direction, the cooling of the material in the kettle body 11 is facilitated. The relative 11 horizontal directions of cauldron body of material in the cauldron body 11 flow, and the material that is close to cooling coil 14 in the cauldron is by the cooling back, keeps away from cooling coil 14 fast, can accelerate the cooling of the interior material of cauldron body 11.

In a specific embodiment, a far infrared reflection film is applied to the outer wall of the jacket 12, and the far infrared reflection film may be tinfoil paper or aluminum foil paper.

In a specific embodiment, the cooling coil 14 has a helical groove formed therein along the axis of the cooling coil 14, and the helical groove is formed in the inner wall of the cooling coil 14 around the axis thereof to provide turbulence to the cooling medium in the cooling coil 14.

In this embodiment, the spiral groove is formed in the cooling coil 14, so that a turbulent state can be achieved under the condition of low flow velocity of the cooling medium, the heat transfer effect is improved, and the cooling of the material in the kettle body 11 can be accelerated.

In one embodiment, a float is placed in the separator tank 22, the float having a density greater than the density of the solvent and less than the density of the water, and blocks the outlet in the upper portion of the separator tank 22 when the level of the water in the separator tank 22 exceeds a predetermined level, and does not block the outlet in the upper portion of the separator tank 22 when the level of the water in the separator tank 22 is below the predetermined level.

The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a solvent backflow dehydration far infrared heating resin reaction unit which characterized in that: the reaction kettle comprises a kettle body, a jacket, a far infrared heating plate, a cooling coil and an emptying pipeline, wherein the jacket is arranged on the outer side of the annular wall of the kettle body, the jacket and the outer wall of the kettle body are integrally formed, an interlayer is formed between the jacket and the kettle body, the far infrared heating plate is inserted in the jacket, the cooling coil which spirally rises is arranged in the kettle body, a cooling medium outlet is arranged at the upper part of the kettle body, a cooling medium inlet is arranged at the lower part of the kettle body, an upper end outlet of the cooling coil is connected with the cooling medium outlet, a lower end inlet of the cooling coil is connected with the cooling medium inlet, a raw material inlet and a resin outlet are also arranged at the top of the kettle body, the emptying pipeline is positioned at the top of the kettle body, the lower end of the emptying pipeline is communicated with an inner cavity of the kettle body, the refluxing unit comprises a tubular cooler and a separation tank, an inlet of the tubular cooler is connected with an outlet, install first valve on the pipeline between tubulation cooler and evacuation pipeline, the export of tubulation cooler and the entry linkage of knockout drum, the export on knockout drum upper portion and the raw materials entry linkage of the cauldron body install the second valve on the pipeline between knockout drum and the cauldron body, and the export of knockout drum lower part is connected with the one end of drain pipe, installs the third valve on the drain pipe.

2. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: the reflux unit further comprises a solvent supplementing tank, an outlet of the solvent supplementing tank is connected with an inlet of the separation tank, and a fourth valve is installed on a pipeline between the solvent supplementing tank and the separation tank.

3. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: the top of the kettle body is provided with a sampling pipe, and the sampling pipe is provided with a sampling valve.

4. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: a searchlight is arranged on the upper part of the inner side of the kettle body.

5. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: a sight glass is arranged at the top of the kettle body.

6. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: a manhole is arranged at the top of the kettle body, and a manhole cover is covered on the manhole.

7. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: a thermometer is arranged on the top of the kettle body.

8. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: the far infrared hot plate is a plurality of, and a plurality of far infrared hot plates are along interbedded circumference equipartition.

9. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: the reaction kettle further comprises a stirring component, the stirring component is installed at the top of the kettle body, the stirring component comprises a stirring shaft and a stirring assembly, the stirring shaft extends into the inner cavity of the kettle body from the top of the kettle body, the upper end of the stirring shaft is driven by a motor to rotate, the stirring assembly is installed at the lower end of the stirring shaft, and the stirring shaft and the cooling coil are coaxially arranged.

10. The solvent reflux dehydration far infrared heating resin reaction device as set forth in claim 1, characterized in that: solvent backward flow dehydration far infrared heating resin reaction unit still includes negative-pressure air fan, the upper end of evacuation pipeline has two exports, an export of evacuation pipeline and the entry linkage of shell and tube cooler, another export of evacuation pipeline and negative-pressure air fan's entry linkage.