Environment-friendly polycarboxylate superplasticizer reaction kettle

Abstract

The utility model discloses an environment-friendly polycarboxylate superplasticizer reaction kettle which comprises a kettle body and a heat recovery tank, a feeding port, an exhaust port and a motor are arranged at the top of the kettle body, the heat recovery tank comprises an internal heat exchange cavity and an external heat preservation cavity, the heat exchange cavity is filled with heat exchange liquid, the heat preservation cavity is filled with treatment liquid, an interlayer is arranged on the side wall of the kettle body, and a heating coil is arranged in the interlayer. One end of the heating coil is connected with the water outlet end of the heater, the other end of the heating coil is communicated with the top of the heat exchange cavity, the bottom of the heat exchange cavity is communicated with the water inlet end of the water pump, and the water outlet end of the water pump is communicated with the water inlet end of the heater; a heat exchange coil is arranged in the heat exchange cavity, the top end of the heat exchange coil is communicated with the exhaust port, the bottom end of the heat exchange coil is arranged at the bottom of the heat preservation cavity, a liquid outlet is formed in the bottom of the heat preservation cavity, and a liquid inlet is formed in the top of the heat preservation cavity. The waste gas heat recovery device can exchange heat to recover waste gas heat and effectively filter waste gas, and energy conservation and environmental protection are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of polycarboxylate water-reducing agent reaction kettles, and in particular relates to an environmentally friendly polycarboxylate water-reducing agent reaction kettle. Background Art

[0002] The polycarboxylate water-reducing agent reactor can increase the reaction speed of the raw materials and promote the uniformity of raw material mixing through the stirring mechanism in the reactor. The main synthesis process of polycarboxylate water-reducing agent is carried out in the reactor. During the synthesis process, a large amount of high-temperature organic acid waste gas is usually generated, and heat is also generated.

[0003] If the generated waste gas is directly discharged, it will not only cause serious environmental pollution, but also a large amount of heat energy carried in the waste gas will be directly wasted. Utility Model Content

[0004] The utility model aims to provide an environmentally friendly polycarboxylate water-reducing agent reactor, which can recover the heat of waste gas through heat exchange, and at the same time effectively filter and treat the waste gas, thereby enhancing energy conservation and environmental protection.

[0005] To achieve the above-mentioned purpose, the utility model environmentally friendly polycarboxylate water-reducing agent reactor comprises a reactor body and a heat recovery tank, the top of the reactor body is provided with a feeding port, an exhaust port and a motor, the power output end of the motor is arranged in the reactor body and connected with a stirring rod, the stirring rod is connected with a stirring blade, the bottom of the reactor body is provided with a discharge port, the heat recovery tank comprises an internal heat exchange chamber and an external heat preservation chamber, the heat exchange chamber is filled with a heat exchange liquid, the heat preservation chamber is filled with a treatment liquid, the side wall of the reactor body is provided with an interlayer, a heating coil is arranged in the interlayer, a heater is connected to the outer side wall of the reactor body, the outer wall of the heat recovery tank is connected with a water pump, one end of the heating coil is connected to the water outlet of the heater, and the other end is communicated with the top of the heat exchange chamber, the bottom of the heat exchange chamber is communicated with the water inlet of the water pump, and the water outlet of the water pump is communicated with the water inlet of the heater;

[0006] A heat exchange coil is arranged in the heat exchange cavity, the top end of the heat exchange coil is communicated with the exhaust port, the bottom end is arranged at the bottom of the heat preservation cavity, the bottom of the heat preservation cavity is arranged with a liquid outlet, and the top of the heat preservation cavity is arranged with a liquid inlet.

[0007] As a further solution of the utility model: a purifier is connected above the heat recovery tank, an air outlet is provided at the top of the heat recovery tank corresponding to the insulation cavity, the air outlet is connected to the air inlet end at the bottom of the purifier, and an air outlet is provided at the top of the purifier.

[0008] As a further solution of the utility model: multiple layers of filter cottons are arranged in the purifier, and granular activated carbon is filled between adjacent filter cottons.

[0009] As a further solution of the utility model: the heat exchange coil is provided with evenly distributed heat exchange fins, and the heat exchange fins on each layer of the heat exchange coil are staggered.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The heat exchange coil can form heat exchange in the heat exchange cavity with the exhaust gas introduced from the exhaust port, and the heated heat exchange fluid can be more easily heated to the required temperature by the heater, so as to reasonably utilize the heat energy in the exhaust gas;

[0012] The exhaust gas after replacement by the heat exchange coil still contains a large amount of heat energy. The insulation chamber is filled with treatment liquid, which can purify the exhaust gas and absorb the heat energy in the exhaust gas to form an insulation effect on the heat exchange chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1. exhaust port, 2. motor, 3. feeding port, 4. kettle body, 5. heating coil, 6. stirring blade, 7. stirring rod, 8. discharge port, 9. heater, 10. water pump, 11. liquid outlet, 12. heat recovery tank, 13. insulation chamber, 14. heat exchange chamber, 15. heat exchange coil, 16. heat exchange fins, 17. liquid inlet, 18. air outlet, 19. purifier, 20. filter cotton, 21. granular activated carbon. DETAILED DESCRIPTION

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] like Figure 1 As shown, the environmentally friendly polycarboxylate water-reducing agent reactor comprises a reactor body 4 and a heat recovery tank 12. The top of the reactor body 4 is provided with a feeding port 3, an exhaust port 1 and a motor 2. The power output end of the motor 2 is arranged in the reactor body 4 and is connected to a stirring rod 7. The stirring rod 7 is connected to a stirring blade 6. The bottom of the reactor body 4 is provided with a discharge port 8. The heat recovery tank 12 comprises an internal heat exchange chamber 14 and an external heat preservation chamber 13. The heat exchange chamber 14 is filled with a heat exchange liquid, and the heat preservation chamber 13 is filled with a treatment liquid. The side wall of the reactor body 4 is provided with an interlayer, and a heating coil 5 is arranged in the interlayer. A heater 9 is connected to the outer wall of the reactor body 4. The outer wall of the heat recovery tank 12 is connected to a water pump 10. One end of the heating coil 5 is connected to the water outlet end of the heater 9, and the other end is connected to the top of the heat exchange chamber 14. The bottom of the heat exchange chamber 14 is connected to the water inlet end of the water pump 10, and the water outlet end of the water pump 10 is connected to the water inlet end of the heater 9.

[0017] The exhaust gas in the heat exchange coil 15 can be fully heat exchanged with the heat exchange liquid. The heated heat exchange chamber 14 is sent to the heating coil 5 through the water pump 10 and the heater 9. In this process, the power output of the heater 9 can be reduced and the required temperature can be reached quickly. According to actual usage, a temperature sensor is set in the kettle body 4 to monitor the temperature in the kettle body 4, and then the target temperature of the heater 9 is adjusted according to the temperature in the kettle body 4.

[0018] A heat exchange coil 15 is provided in the heat exchange chamber 14 , the top of the heat exchange coil 15 is connected to the exhaust port 1 , and the bottom of the heat preservation chamber 13 is provided with a liquid outlet 11 at the bottom of the heat preservation chamber 13 , and a liquid inlet 17 at the top of the heat preservation chamber 13 .

[0019] After heat exchange through the heat exchange chamber 14, the exhaust gas still carries a large amount of heat energy, which is directly injected into the treatment liquid in the insulation chamber 13. The treatment liquid can be used to recover heat. Since the insulation chamber 13 is located outside the heat exchange chamber 14, it can provide insulation for the heat exchange liquid in the heat exchange chamber 14.

[0020] Since the waste gas generated during the reaction process of polycarboxylic acid water-reducing agent is organic acid gas, the treatment liquid here is neutralized with alkaline treatment liquid, and finally the treatment liquid is concentrated for secondary recovery to extract usable resources.

[0021] Furthermore, a purifier 19 is connected above the heat recovery tank 12, and an air outlet 18 is provided at the top of the heat recovery tank 12 corresponding to the insulation chamber 13. The air outlet 18 is connected to the air inlet end at the bottom of the purifier 19, and an air outlet end is provided at the top of the purifier 19. The exhaust gas treated with the treatment liquid is further purified by the purifier 19.

[0022] In order to achieve a sufficient purification effect, preferably, multiple layers of spaced filter cotton 20 are provided in the purifier 19, and granular activated carbon 21 is filled between adjacent filter cottons 20 to form multi-level repeated adsorption and filtration of the exhaust gas.

[0023] Furthermore, the heat exchange coil 15 is provided with evenly distributed heat exchange fins 16 , and the heat exchange fins 16 on each layer of the heat exchange coil 15 are staggered, thereby increasing the heat exchange area of ​​the heat exchange coil 15 and improving the heat energy replacement efficiency.

[0024] When the utility model is actually used, raw materials are fed through the feeding port 3, the motor 2 is started to drive the stirring rod 7 and the stirring blade 6 to rotate, and the heater 9 and the water pump 10 are started at the same time to provide the reaction temperature for the kettle body 4; a large amount of high-temperature acid waste gas is generated during the stirring reaction process, and the waste gas is discharged from the exhaust port 1 into the heat exchange coil 15, and heat exchange is formed with the heat exchange liquid through the heat exchange coil 15. When the heat exchange liquid after the heat exchange is extracted by the water pump 10 and sent to the heating coil 5, the power output of the heater 9 can be reduced; the waste gas discharged from the heat exchange coil 15 enters the treated liquid, and a neutralization and purification reaction is carried out, and at the same time, residual heat energy is absorbed, so that the heat preservation chamber 13 achieves the heat preservation effect of the heat exchange chamber 14.

Claims

1. An environmentally friendly polycarboxylate water-reducing agent reactor, comprising a reactor body (4) and a heat recovery tank (12), wherein the top of the reactor body (4) is provided with a feeding port (3), an exhaust port (1) and a motor (2), wherein the power output end of the motor (2) is arranged in the reactor body (4) and is connected to a stirring rod (7), wherein the stirring rod (7) is connected to a stirring blade (6), and the bottom of the reactor body (4) is provided with a discharge port (8), wherein: The heat recovery tank (12) comprises an internal heat exchange chamber (14) and an external heat preservation chamber (13), the heat exchange chamber (14) is filled with heat exchange liquid, and the heat preservation chamber (13) is filled with treatment liquid, the side wall of the kettle body (4) is provided with an interlayer, and the interlayer is provided with a heating coil (5), the outer wall of the kettle body (4) is connected to a heater (9), the outer wall of the heat recovery tank (12) is connected to a water pump (10), one end of the heating coil (5) is connected to the water outlet of the heater (9), and the other end is connected to the top of the heat exchange chamber (14), the bottom of the heat exchange chamber (14) is connected to the water inlet of the water pump (10), and the water outlet of the water pump (10) is connected to the water inlet of the heater (9); A heat exchange coil (15) is provided in the heat exchange chamber (14); the top end of the heat exchange coil (15) is connected to the exhaust port (1), and the bottom end is provided at the bottom of the heat preservation chamber (13); the bottom of the heat preservation chamber (13) is provided with a liquid outlet (11), and the top of the heat preservation chamber (13) is provided with a liquid inlet (17).

2. The environmentally friendly polycarboxylate water-reducing agent reactor according to claim 1, characterized in that: A purifier (19) is connected above the heat recovery tank (12); an air outlet (18) is provided at the top of the heat recovery tank (12) corresponding to the heat preservation chamber (13); the air outlet (18) is connected to the air inlet at the bottom of the purifier (19); and an air outlet is provided at the top of the purifier (19).

3. The environmentally friendly polycarboxylate water-reducing agent reactor according to claim 2, characterized in that: The purifier (19) is provided with multiple layers of filter cotton (20) distributed at intervals, and granular activated carbon (21) is filled between adjacent filter cottons (20).

4. The environmentally friendly polycarboxylate water-reducing agent reactor according to claim 1 or 3, characterized in that: The heat exchange coil (15) is provided with evenly distributed heat exchange fins (16), and the heat exchange fins (16) on each layer of the heat exchange coil (15) are staggered.

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