CN216764599U - Wastewater recovery processing apparatus is used in MOCA production - Google Patents
Wastewater recovery processing apparatus is used in MOCA production Download PDFInfo
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- CN216764599U CN216764599U CN202123366903.6U CN202123366903U CN216764599U CN 216764599 U CN216764599 U CN 216764599U CN 202123366903 U CN202123366903 U CN 202123366903U CN 216764599 U CN216764599 U CN 216764599U
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Abstract
The utility model relates to the technical field of chemical product production, in particular to a wastewater recovery treatment device for MOCA production, which comprises a wastewater collection pool, wherein a wastewater outlet of the wastewater collection pool is communicated with a first filter press, a filtrate outlet of the first filter press is communicated with a neutralization pool, a water outlet of the neutralization pool is communicated with a complexation kettle, a water outlet of the complexation kettle is communicated with a second filter press, a filtrate outlet of the second filter press is communicated with a cache tank, a wastewater outlet of the cache tank is communicated with a triple-effect evaporation device, an exhaust port of the triple-effect evaporation device is communicated with a first condenser, a condensate outlet of the first condenser is communicated with a water storage tank, an exhaust port of the water storage tank is communicated with a vacuum pump, a water outlet of the water storage tank is communicated with a filtering device, and a water outlet of the filtering device is communicated with a clear water collection pool; the filter cake outlet of the second filter press is communicated with the condensation kettle. Above-mentioned waste water recovery processing apparatus, reasonable in design has realized effective treatment and recycle to waste water.
Description
Technical Field
The utility model relates to the technical field of chemical product production, in particular to a wastewater recovery treatment device for MOCA production.
Background
3, 3 '-dichloro-4, 4' -diaminodiphenylmethane (MOCA), is mainly used for polyurethane and epoxy resin bridging agents. The o-chloroaniline used in the synthesis of 3, 3 '-dichloro-4, 4' -diaminodiphenylmethane (MOCA) cannot be completely reacted, the production water is used for cleaning materials in the production process to take out impurities, free amine, salt and the like to form production wastewater, and the production water has large usage amount, so that great production pressure is brought if the materials cannot be well treated, and even the problem of environmental pollution is caused. Therefore, a set of wastewater recovery and treatment device for MOCA production is designed aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to prior art's not enough, provide MOCA production and use waste water recovery processing device, utilized this recovery processing device to realize the recycle to waste water, reduced the pollution to the environment and the waste of resource.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the wastewater recovery treatment device for MOCA production comprises a wastewater collection pool, wherein a wastewater outlet of the wastewater collection pool is communicated with a first filter press, a filtrate outlet of the first filter press is communicated with a neutralization pool, a water outlet of the neutralization pool is communicated with a complexing kettle, a water outlet of the complexing kettle is communicated with a second filter press, a filtrate outlet of the second filter press is communicated with a cache tank, a wastewater outlet of the cache tank is communicated with a triple-effect evaporation device, an exhaust port of the triple-effect evaporation device is communicated with a first condenser, a condensate outlet of the first condenser is communicated with a water storage tank, an evacuation port of the water storage tank is communicated with a vacuum pump, an drainage port of the water storage tank is communicated with a filtering device, and a drainage port of the filtering device is communicated with a clear water collection pool; and a filter cake outlet of the second filter press is communicated with the condensation kettle.
As an improved technical scheme, a sealing plate is arranged at the top of the neutralization tank, a water inlet and a hydrochloric acid inlet are formed in the sealing plate, a stirring shaft is arranged inside the neutralization tank, one end of the stirring shaft is connected with a motor on the sealing plate, and a plurality of stirring blades are arranged on the stirring shaft.
As an improved technical scheme, the complexing kettle comprises a kettle body, a jacket is arranged outside the kettle body, a rotating shaft is arranged inside the kettle body, one end of the rotating shaft is connected with a motor at the top of the kettle body, and a plurality of stirring rods are arranged on the rotating shaft.
As an improved technical scheme, the triple-effect evaporation device comprises a first evaporator, a discharge port of the first evaporator is communicated with a second evaporator, a discharge port of the second evaporator is communicated with a third evaporator, a discharge port of the third evaporator is communicated with a thickener, a discharge port of the thickener is communicated with a centrifuge, a liquid outlet of the centrifuge is communicated with a collecting tank, and a liquid outlet of the collecting tank is communicated with the first evaporator of the triple-effect evaporation device; the exhaust ports of the first evaporator, the second evaporator and the third evaporator are communicated with a first condenser, and a condensate outlet of the first condenser is communicated with a water storage tank.
As an improved technical scheme, the filtering device comprises a body, wherein an inlet is formed in one end of the body, an outlet is formed in the other end of the body, and an activated carbon layer is arranged inside the body.
As an improved technical scheme, the thickener comprises a body, wherein a stirring shaft is arranged in the body and is connected with a motor at the top of the body, a drain port of the body is communicated with a second condenser, and a condensate outlet of the second condenser is communicated with a water storage tank.
As an improved technical scheme, a preheater is arranged between the cache tank and the triple-effect evaporation device, the interior of the preheater is of a hollow structure, a water inlet is formed in the bottom of the preheater, a water outlet is formed in the top of the preheater, and a jacket is arranged outside the preheater.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the wastewater recovery treatment device for MOCA production comprises a wastewater collection pool, wherein a wastewater outlet of the wastewater collection pool is communicated with a first filter press, a filtrate outlet of the first filter press is communicated with a neutralization pool, a water outlet of the neutralization pool is communicated with a complexing kettle, a water outlet of the complexing kettle is communicated with a second filter press, a filtrate outlet of the second filter press is communicated with a cache tank, a wastewater outlet of the cache tank is communicated with a triple-effect evaporation device, an exhaust port of the triple-effect evaporation device is communicated with a first condenser, a condensate outlet of the first condenser is communicated with a water storage tank, an evacuation port of the water storage tank is communicated with a vacuum pump, an evacuation port of the water storage tank is communicated with a filtering device, and an evacuation port of the filtering device is communicated with a clear water collection pool; the filter cake outlet of the second filter press is communicated with the condensation kettle. The waste water in the waste water collecting pool is conveyed to a first filter press through a conveying pump, filter liquor after filter pressing enters a neutralization pool through the conveying pump, hydrochloric acid is added to adjust the pH value of the waste water to be neutral, the waste water is stirred and mixed and then enters a complexing kettle through the conveying pump, carbon dioxide is introduced, the waste water is kept warm at the temperature of 30 ℃ and is subjected to complexing reaction for a period of time, feed liquid after the complexing reaction is conveyed to a second filter press through the conveying pump, the filter liquor after filter pressing enters a buffer tank and then enters a triple-effect evaporation device through the conveying pump, after evaporation and concentration, moisture in the filter liquor is discharged in a steam form and then is condensed through a first condenser, the condensate enters a water storage tank, then enters a filtering device through a liquid level difference, and after the filtrate is filtered by the filtering device, the condensate water enters a clear water collecting pool to serve as production water. The filter cake in the second filter press enters a condensation kettle, acid is added to adjust the pH value, water is added for heating decomposition, carbon dioxide enters an alkali liquor spray tower from a drain port to be absorbed, and o-chloroaniline hydrochloride is obtained inside the condensation kettle; above-mentioned waste water recovery processing apparatus, reasonable in design has realized effective treatment and recycle to waste water, has avoided the pollution to the environment, has still realized the recycle to raw materials in the waste water simultaneously.
Because the top in the neutralization pond is equipped with the closing plate, inlet port and hydrochloric acid import on the closing plate, the inside in neutralization pond is equipped with the (mixing) shaft, and the one end and the motor on the closing plate of (mixing) shaft are connected, are equipped with a plurality of stirring paddle leaf on the (mixing) shaft. And the filtrate pressed out by the first filter press enters a neutralization tank through a delivery pump, hydrochloric acid is added to adjust the pH value to be neutral, and a motor drives a stirring shaft to stir and mix the wastewater in the neutralization tank. By adopting the neutralization tank with the structure, the pH value of the wastewater can be effectively adjusted.
Because the complex cauldron includes the cauldron body, and the outside of the cauldron body is equipped with presss from both sides the cover, and the inside of the cauldron body is equipped with the pivot, and the one end of pivot is connected with the motor at cauldron body top, is equipped with a plurality of puddlers in the pivot. And (3) enabling a waste water copper drum delivery pump in the neutralization tank to enter the interior of the complexing kettle, introducing carbon dioxide, preserving heat at 30 ℃, starting a motor, stirring the waste water and the carbon dioxide by using a rotating shaft and a stirring rod, and carrying out complexing reaction on components such as raw materials in the waste water and the carbon dioxide. Above-mentioned complex cauldron reasonable in design, simple structure promotes ingredients such as raw materials in the waste water and carbon dioxide complex reaction and obtains the complex, passes through the filter-pressing of second pressure filter again, has realized the effective separation to complex and waste water.
The triple-effect evaporation device comprises a first evaporator, a discharge port of the first evaporator is communicated with a second evaporator, a discharge port of the second evaporator is communicated with a third evaporator, a discharge port of the third evaporator is communicated with a thickener, a discharge port of the thickener is communicated with a centrifugal machine, a liquid outlet of the centrifugal machine is communicated with a collecting tank, and a discharge port of the collecting tank is communicated with the first evaporator of the triple-effect evaporation device; the exhaust ports of the first evaporator, the second evaporator and the third evaporator are communicated with the first condenser, and a condensate outlet of the first condenser is communicated with the water storage tank. The filtrate in the cache tank enters a first evaporator through a delivery pump, enters a second evaporator after being heated and concentrated, continues to be heated and concentrated, enters a third evaporator through the delivery pump, enters a thickener after being heated and concentrated, then is filtered through a filter, the obtained solid-phase salt is collected through a collection tank, the filtered filtrate enters a collection tank from a liquid outlet, and enters the first evaporator again through the delivery pump to continue to be concentrated; and the water vapor in the first evaporator, the second evaporator and the third evaporator enters the water storage tank after passing through the first condenser along the pipeline for cold energy. Adopt above-mentioned device, realized the effective separation and the collection of salinity in the collection and the waste water of waste water.
Because filter equipment includes the body, the one end of body is equipped with the import, and the other end of body is equipped with the export, and the inside of body is equipped with the activated carbon layer. Waste water in the water storage tank enters the body of the filtering device by virtue of liquid level difference, and pigment and other components in the waste water can be further removed by filtering and adsorbing the waste water by virtue of the activated carbon layer, so that the waste water is effectively filtered.
Because the stiff ware includes the body, the inside of body is equipped with the (mixing) shaft, and the (mixing) shaft is connected with the motor at body top, and the evacuation mouth of body communicates the second condenser, and the condensate outlet of second condenser communicates the water storage tank. The saline solution can be concentrated through the thickener, and part of steam in the saline solution enters the second condenser through the emptying port and is collected through the water storage tank.
Because be equipped with the preheater between buffer tank and the triple effect evaporation device, the inside of preheater is hollow structure, and the bottom of preheater is equipped with the water inlet, and the top of preheater is equipped with the delivery port, and the outside of preheater is equipped with presss from both sides the cover. Waste water in the buffer tank is preheated by the preheater and then enters the triple-effect evaporation device, and the preheating by the preheater is more favorable for subsequent evaporation and concentration of the waste water.
Drawings
FIG. 1 is a schematic structural diagram of a wastewater recovery and treatment device for MOCA production according to the present invention;
the method comprises the following steps of 1-a wastewater collecting tank, 2-a first filter press, 3-a neutralizing tank, 4-a complexing kettle, 5-a second filter press, 6-a cache tank, 7-a preheater, 8-a triple-effect evaporation device, 80-a first evaporator, 81-a second evaporator, 82-a third evaporator, 9-a thickener, 10-a centrifuge, 11-a collecting tank, 12-a first condenser, 13-a water storage tank, 14-a vacuum pump, 15-a filtering device, 150-an activated carbon layer, 16-a clear water collecting tank, 17-a condensing kettle, 18-a second condenser and 19-a water storage tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The wastewater recovery processing device for MOCA production comprises a wastewater collection pool 1, wherein a wastewater outlet of the wastewater collection pool 1 is communicated with a first filter press 2, a filtrate outlet of the first filter press 2 is communicated with a neutralization pool 3, a water outlet of the neutralization pool 3 is communicated with a complexation kettle 4, a water outlet of the complexation kettle 4 is communicated with a second filter press 5, a filtrate outlet of the second filter press 5 is communicated with a cache tank 6, a wastewater outlet of the cache tank 6 is communicated with a preheater 7, an outlet of the preheater 7 is communicated with a first evaporator 80 of a triple-effect evaporator 8, a discharge port of the first evaporator 80 is communicated with a second evaporator 81, a discharge port of the second evaporator 81 is communicated with a third evaporator 82, a discharge port of the third evaporator 82 is communicated with a thickener 9, a discharge port of the thickener 9 is communicated with a centrifuge 10, a liquid outlet of the centrifuge 10 is communicated with a collection tank 11, and the collection tank 11 is communicated with the first evaporator of the triple-effect evaporator through a conveying pump; the exhaust ports of the first evaporator 80, the second evaporator 81 and the third evaporator 82 are communicated with the first condenser 12, the condensate outlet of the first condenser 12 is communicated with the water storage tank 13, the evacuation port of the water storage tank 13 is communicated with the vacuum pump 14, the water discharge port of the water storage tank 13 is communicated with the filtering device 15, and the water discharge port of the filtering device 15 is communicated with the clean water collecting pool 16; the filter cake export of second pressure filter 5 communicates condensation cauldron 17 (including the cauldron body, the top of the cauldron body is equipped with feed inlet and water inlet, and the inside of the cauldron body is equipped with the (mixing) shaft, is equipped with stirring vane on the (mixing) shaft, and the outside of the cauldron body is equipped with presss from both sides the cover, and condensation cauldron's evacuation mouth communicates alkali lye spray column, including the tower body, and bottom one side of tower body is equipped with the air inlet, and the inside of tower body is equipped with the multilayer alkali lye shower, and the alkali lye shower passes through delivery pump intercommunication alkali lye storage tank).
The waste water in the waste water collecting pool is conveyed to a first filter press (plate and frame filter press, filter cakes after filter pressing are put into production and neutralization process) through a conveying pump, filtrate after filter pressing enters a neutralization pool through the conveying pump, hydrochloric acid is added to adjust the pH value of the waste water to be neutral, the waste water enters a complexing kettle through the conveying pump after being stirred and mixed, carbon dioxide is introduced, feed liquid after complexing reaction is heated for a period of time and conveyed to a second filter press (plate and frame filter press) through the conveying pump, filtrate after filter pressing enters a buffer tank and then enters a preheater through the conveying pump, the filtrate after preheating enters a first evaporator of a triple effect evaporation device, the filtrate after heating and concentration enters a second evaporator through the conveying pump, the filtrate after continuous heating and concentration enters a third evaporator through the conveying pump, salt solution after heating and concentration enters a thickener, then filtering the salt solution by a filter, collecting the obtained solid salt by a collection tank, and feeding the filtered and collected mother solution into a triple-effect evaporation device by a delivery pump for continuous concentration; water vapor in the first evaporator, the second evaporator and the third evaporator passes through the first condenser along the pipeline to enter the water storage tank after cold energy, then enters the filtering device by utilizing the liquid level difference, is filtered by the filtering device, and then enters the clear water collecting tank to be used as production water. The filter cake in the second filter press enters a condensation kettle, acid is added to adjust the pH value, water is added for heating decomposition, carbon dioxide enters an alkali liquor spray tower from a drain port to be absorbed, and o-chloroaniline hydrochloride is obtained inside the condensation kettle; above-mentioned waste water recovery processing apparatus, reasonable in design has realized effective treatment and recycle to waste water, has avoided the pollution to the environment, has still realized the recycle to raw materials in the waste water simultaneously.
Wherein the top in neutralization pond 3 is equipped with the closing plate, inlet port and hydrochloric acid import on the closing plate, and the inside in neutralization pond is equipped with the (mixing) shaft, and the one end and the motor on the closing plate of (mixing) shaft are connected, are equipped with a plurality of stirring paddle leaf on the (mixing) shaft. And (3) enabling filtrate pressed out by the first filter press to enter a neutralization tank through a delivery pump, adding hydrochloric acid to adjust the pH value to be neutral, and driving a stirring shaft by a motor to stir and mix wastewater in the neutralization tank. By adopting the neutralization tank with the structure, the pH value of the wastewater can be effectively adjusted.
The complexing kettle 4 comprises a kettle body, a jacket is arranged outside the kettle body, a rotating shaft is arranged inside the kettle body, one end of the rotating shaft is connected with a motor at the top of the kettle body, and a plurality of stirring rods are arranged on the rotating shaft; the inside of the kettle body is provided with a gas distributor (a circular coil pipe, and the pipe wall of the coil pipe is provided with a plurality of gas distribution holes) near the bottom. The waste water bronze drum transfer pump in the neutralization pond gets into the inside of complex cauldron, lets in carbon dioxide, keeps warm under the 30 ℃ condition, and the motor drives pivot and puddler and stirs waste water and carbon dioxide, and composition and carbon dioxide complex reaction such as the raw materials in the waste water. Above-mentioned complex cauldron reasonable in design, simple structure promotes ingredients such as raw materials in the waste water and carbon dioxide complex reaction and obtains the complex, passes through the filter-pressing of second pressure filter again, has realized the effective separation to complex and waste water.
Wherein the filtering device 15 comprises a body, one end of the body is provided with an inlet, the other end of the body is provided with an outlet, and the inside of the body is provided with an activated carbon layer 150. Waste water in the water storage tank enters the body of the filtering device by virtue of liquid level difference, and pigment and other components in the waste water can be further removed by filtering and adsorbing the waste water by virtue of the activated carbon layer, so that the waste water is effectively filtered.
The thickener 9 comprises a body, a stirring shaft is arranged in the body and connected with a motor at the top of the body, a drain port of the body is communicated with a second condenser 18, and a condensate outlet of the second condenser 18 is communicated with a water storage tank 19. The saline solution can be concentrated through the thickener, and part of steam in the saline solution enters the second condenser through the emptying port and is collected through the water storage tank.
Wherein the inside of preheater 7 is hollow structure, and the bottom of preheater is equipped with the water inlet, and the top of preheater is equipped with the delivery port, and the outside of preheater is equipped with the cover that presss from both sides. The waste water in the buffer tank enters the triple-effect evaporation device after being preheated by the preheater, and the preheating by the preheater is more favorable for subsequent evaporation and concentration of the waste water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
- Waste water recovery processing apparatus is used in MOCA production which characterized in that: the device comprises a wastewater collecting pool, wherein a wastewater outlet of the wastewater collecting pool is communicated with a first filter press, a filtrate outlet of the first filter press is communicated with a neutralization pool, a water outlet of the neutralization pool is communicated with a complexing kettle, a water outlet of the complexing kettle is communicated with a second filter press, a filtrate outlet of the second filter press is communicated with a cache tank, a wastewater outlet of the cache tank is communicated with a triple-effect evaporation device, an exhaust port of the triple-effect evaporation device is communicated with a first condenser, a condensate outlet of the first condenser is communicated with a water storage tank, an evacuation port of the water storage tank is communicated with a vacuum pump, an evacuation port of the water storage tank is communicated with a filtering device, and an evacuation port of the filtering device is communicated with a clear water collecting pool; and a filter cake outlet of the second filter press is communicated with the condensation kettle.
- 2. The wastewater recovery and treatment device for MOCA production according to claim 1, wherein: the top in neutralization pond is equipped with the closing plate, be equipped with water inlet and hydrochloric acid import on the closing plate, the inside in neutralization pond is equipped with the (mixing) shaft, the one end of (mixing) shaft with motor on the closing plate is connected, be equipped with a plurality of stirring paddle leaf on the (mixing) shaft.
- 3. The wastewater recovery and treatment device for MOCA production according to claim 1, wherein: the complexing kettle comprises a kettle body, a jacket is arranged outside the kettle body, a rotating shaft is arranged inside the kettle body, one end of the rotating shaft is connected with a motor at the top of the kettle body, and a plurality of stirring rods are arranged on the rotating shaft.
- 4. The wastewater recovery and treatment device for MOCA production according to claim 1, wherein: the triple-effect evaporation device comprises a first evaporator, a discharge port of the first evaporator is communicated with a second evaporator, a discharge port of the second evaporator is communicated with a third evaporator, a discharge port of the third evaporator is communicated with a thickener, a discharge port of the thickener is communicated with a centrifugal machine, and a liquid outlet of the centrifugal machine is communicated with a collecting tank; the exhaust ports of the first evaporator, the second evaporator and the third evaporator are communicated with a first condenser, and a condensate outlet of the first condenser is communicated with a water storage tank.
- 5. The wastewater recovery and treatment device for MOCA production according to claim 1, wherein: the filtering device comprises a body, wherein one end of the body is provided with an inlet, the other end of the body is provided with an outlet, and an activated carbon layer is arranged inside the body.
- 6. The wastewater recovery processing device for MOCA production according to claim 4, characterized in that: the thickener comprises a body, wherein a stirring shaft is arranged in the body and is connected with a motor at the top of the body, a drain port of the body is communicated with a second condenser, and a condensate outlet of the second condenser is communicated with a water storage tank.
- 7. The wastewater recovery and treatment device for MOCA production according to claim 1, wherein: the novel energy-saving type solar energy water heater is characterized in that a preheater is arranged between the cache tank and the triple-effect evaporation device, the inside of the preheater is of a hollow structure, a water inlet is formed in the bottom of the preheater, a water outlet is formed in the top of the preheater, and a jacket is arranged outside the preheater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123366903.6U CN216764599U (en) | 2021-12-29 | 2021-12-29 | Wastewater recovery processing apparatus is used in MOCA production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123366903.6U CN216764599U (en) | 2021-12-29 | 2021-12-29 | Wastewater recovery processing apparatus is used in MOCA production |
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| CN216764599U true CN216764599U (en) | 2022-06-17 |
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| CN202123366903.6U Active CN216764599U (en) | 2021-12-29 | 2021-12-29 | Wastewater recovery processing apparatus is used in MOCA production |
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2021
- 2021-12-29 CN CN202123366903.6U patent/CN216764599U/en active Active
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