CN-224215692-U - Quick cooling reaction kettle for melamine resin production

CN224215692UCN 224215692 UCN224215692 UCN 224215692UCN-224215692-U

Abstract

The application relates to the technical field of melamine resin production, and discloses a rapid cooling reaction kettle for melamine resin production. The multiple cooling effect of cooling the reaction kettle is realized through the cooperation of the first heat exchange coil, the second heat exchange coil, the first water supply pipe, the second water supply pipe and other parts, and the cooling of the reaction kettle is guaranteed to be rapidly completed. The cooling water tank is arranged, the refrigerating equipment can be arranged at the position of the cooling water tank to realize continuous cooling of water in the cooling water tank, the process occurs in the reaction stage of the reaction kettle, so that the cooling water tank can continuously pre-store low-temperature cooling water in the reaction stage of the reaction kettle, and then water in the cooling water tank is introduced into the first heat exchange coil pipe for heat exchange through the second water pump and the second water supply pipe in the application. The application has a plurality of heat exchange modes with different efficiencies, and the plurality of heat exchange modes can be conveniently converted and adjusted only through the valve body.

Inventors

MA XUEJIAN
Ma Xuesheng
MA HUI
Zhan Zhongbin
YANG XIAOMEI
ZHOU GUI
ZHANG QIYANG
Wang Wangxiong
WANG YANXIA
ZHAO YONG

Assignees

宁夏大禹新材料科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250613

Claims (7)

1. The rapid cooling reaction kettle for melamine resin production is characterized by comprising a reaction kettle body, a water storage tank and a cooling water tank, wherein a cooling jacket is arranged on the periphery of the reaction kettle body, a heat exchange cavity is formed by encircling the inner wall of the cooling jacket and the outer wall of the reaction kettle body together, a first heat exchange coil and a second heat exchange coil are arranged in the heat exchange cavity in a spiral manner, the head end of the first heat exchange coil extends to the periphery of the cooling jacket and is communicated with a first water inlet joint, the head end of the second heat exchange coil extends to the periphery of the cooling jacket and is communicated with a second water inlet joint, and the tail ends of the first heat exchange coil and the second heat exchange coil extend to the outer end of the cooling jacket respectively and are communicated with a first water outlet pipe and a second water outlet pipe respectively; The one end intercommunication of first water inlet joint has the three-way pipe, the still intercommunication of three-way pipe has first delivery pipe and second delivery pipe, first delivery pipe with be provided with first solenoid valve and second solenoid valve on the second delivery pipe respectively, the end of first delivery pipe extends to in the cistern and be provided with first water pump, the end of second delivery pipe extends to cooling water pond department and communicates there is the second water pump, second water inlet joint department intercommunication has the third delivery pipe, the third delivery pipe extends to cistern department and communicates there is the third water pump.
2. The rapid cooling reaction kettle for melamine resin production according to claim 1, wherein one end of the second water inlet joint, which is far away from the cooling jacket, is communicated with a multi-way joint, the third water supply pipe is communicated with an inner cavity of the multi-way joint, the multi-way joint is also communicated with a fourth water supply pipe, the tail end of the fourth water supply pipe extends to the cooling water tank and is communicated with a fourth water pump, and the third water supply pipe and the fourth water supply pipe are respectively provided with a third electromagnetic valve and a fourth electromagnetic valve.
3. The rapid cooling reaction kettle for melamine resin production according to claim 1, wherein a spiral heat dissipation fin ring matched with the first heat exchange coil and the second heat exchange coil is arranged on the periphery of the reaction kettle body.
4. The rapid cooling reaction kettle for melamine resin production according to claim 1, wherein the cross-sectional area of the first heat exchange coil is smaller than the cross-sectional area of the second heat exchange coil.
5. The rapid cooling reaction kettle for melamine resin production according to claim 1, comprising a pump, wherein the suction end of the pump is communicated with the bottom end of the reaction kettle body.
6. The rapid cooling reaction kettle for melamine resin production according to claim 1, comprising a plurality of thermocouple, wherein the plurality of thermocouple are respectively arranged on the outer side wall of the reaction kettle body.
7. The rapid cooling reaction kettle for melamine resin production according to claim 1, wherein the reservoir extends to the cooling water tank through an overflow pipe, and an overflow valve is arranged at the overflow pipe.

Description

Quick cooling reaction kettle for melamine resin production Technical Field The application relates to the technical field of melamine resin production, in particular to a rapid cooling reaction kettle for melamine resin production. Background Melamine resins have a variety of uses, such as decorative laminates, tableware and food packaging, coatings and adhesives, etc., and require raw material preparation, methylolation, polycondensation, termination and modification, post-treatment, and cure molding during production. The final stage after the polycondensation reaction usually needs rapid cooling, which is a key control step in the production process of melamine resin, whether cooling can be rapidly realized directly affects the quality of products, if not timely cooling, the reaction can be continuously carried out, so that the premature crosslinking of the resin (the molecular weight of the prepolymer is too large) is caused, the subsequent processing performance (such as poor flowability) is affected, the viscosity of the resin is rapidly increased, and even gelation (solidification) is possible, so that the products are scrapped. But the existing reaction kettle can not realize rapid cooling. Disclosure of utility model In view of the above problems, the embodiment of the application provides a rapid cooling reaction kettle for melamine resin production, which can realize rapid cooling of the inside of the reaction kettle, thereby avoiding a series of problems caused by failure in-time cooling in the melamine resin production process. According to one aspect of the embodiment of the application, a rapid cooling reaction kettle for melamine resin production is provided. The melamine resin production is with quick cooling reation kettle includes the reation kettle body, cistern and cooling water pond, the periphery of reation kettle body is provided with the cooling jacket, the inner wall of cooling jacket with enclose jointly between the outer wall of reation kettle body and form the heat transfer chamber, the heat transfer intracavity is the heliciform and is provided with first heat transfer coil and second heat transfer coil, first heat transfer coil's head end extends to the periphery of cooling jacket and communicates there is first water inlet connector, the second heat transfer coil's head end extends to the periphery of cooling jacket and communicates there is the second water inlet connector, first heat transfer coil with the end of second heat transfer coil extends to the outer end of cooling jacket and communicates there is first outlet pipe and second outlet pipe respectively, the one end intercommunication of first water inlet connector has the three-way pipe, first delivery pipe with be provided with first solenoid valve and second solenoid valve on the second delivery pipe respectively, the end of first delivery pipe extends to in the cistern and communicates there is the second delivery pipe, the second delivery pipe extends to the third water pump and communicates there is the third water pump to the third water pump. In some embodiments, one end of the second water inlet joint, which is far away from the cooling jacket, is communicated with a multi-way joint, the third water supply pipe is communicated with an inner cavity of the multi-way joint, a fourth water supply pipe is also communicated at the multi-way joint, the tail end of the fourth water supply pipe extends to the cooling water tank and is communicated with a fourth water pump, and a third electromagnetic valve and a fourth electromagnetic valve are respectively arranged on the third water supply pipe and the fourth water supply pipe. In some embodiments, a spiral heat dissipation fin ring matched with the first heat exchange coil and the second heat exchange coil is arranged on the periphery of the reaction kettle body. In some embodiments, the cross-sectional area of the first heat exchange coil is smaller than the cross-sectional area of the second heat exchange coil. In some embodiments, the reaction kettle comprises a pumping pump, wherein the suction end of the pumping pump is communicated with the bottom end of the reaction kettle body. In some embodiments, the reaction kettle comprises a plurality of thermocouple assemblies, wherein the thermocouple assemblies are respectively arranged on the outer side wall of the reaction kettle body. In some embodiments, the reservoir extends to the cooling water basin through an overflow pipe, where an overflow valve is provided. The cooling device has the beneficial effects that multiple cooling effects on cooling the reaction kettle are realized through the cooperation of the first heat exchange coil, the second heat exchange coil, the first water supply pipe, the second water supply pipe and other parts, and the cooling of the inside of the reaction kettle is ensured to be completed rapidly. According to the application, the cooling water tank is arranged, the refrigerating