A waste liquid recovery device for morpholine production

Abstract

The utility model provides a kind of waste liquid recovery device for morpholine production, including with the discharge pipeline of production sewage being communicated with recovery mechanism, the recovery mechanism includes oil separation pond, with the regulating pond being communicated with oil separation pond, with the first phosphorus removal reaction pond being communicated with regulating pond, with the catalytic oxidation pond being communicated with first phosphorus removal reaction pond, with the biochemical pond being communicated with catalytic oxidation pond, with the discharge port of regulating pond, catalytic oxidation pond and first phosphorus removal reaction pond being communicated with sludge pond and with the discharge port of biochemical pond being communicated with the second phosphorus removal reaction pond, the outside of the second phosphorus removal reaction pond is also provided with the sedimentation tank being communicated therewith, the outside of sedimentation tank is provided with the clean water pond being communicated therewith, the utility model can be by recovery mechanism to realize to the unreacted raw material in production waste liquid, by-product and other impurities carry out reaction to the filter pressing treatment to precipitate after reaction, to the treated waste liquid that meets the standard is recycled, greatly improve the treatment efficiency of waste liquid.

Description

Technical Field

[0001] This utility model relates to the technical field of waste liquid recovery equipment, specifically to a waste liquid recovery device for morpholine production. Background Technology

[0002] Morpholine, also known as morpholin, is an organic compound with the chemical formula C4H9NO. It is a colorless, oily liquid, miscible with water and most organic solvents. It is mainly used as an analytical reagent and a solvent for resins, waxes, shellac, etc. The waste liquid generated during the production of morpholine typically contains unreacted raw materials, byproducts, and other impurities. To reduce environmental pollution and improve resource utilization, this waste liquid is usually treated, and valuable components are recovered as much as possible.

[0003] When recycling and reusing traditional production waste liquids, the byproducts are complex and traditional physicochemical methods (such as distillation and extraction) may be difficult to use efficiently to separate morpholine from the complex mixture, resulting in low efficiency. Utility Model Content

[0004] In view of this, the present invention provides a waste liquid recovery device for morpholine production. The present invention can realize the reaction of unreacted raw materials, by-products and other impurities in the production waste liquid through the recovery mechanism, and then perform centralized pressure filtration treatment on the precipitate. At the same time, the treated waste liquid that meets the standards can be recycled and reused or centrally discharged, which greatly improves the treatment effect and efficiency of waste liquid.

[0005] To solve the above-mentioned technical problems, this utility model provides a wastewater recovery device for morpholine production, including a recovery mechanism connected to a discharge pipe of production wastewater. The recovery mechanism includes an oil separator, an equalization tank connected to the oil separator, a first phosphorus removal reaction tank connected to the equalization tank, a catalytic oxidation tank connected to the first phosphorus removal reaction tank, a biochemical tank connected to the catalytic oxidation tank, a sludge tank connected to the discharge outlets of the equalization tank, the catalytic oxidation tank, and the first phosphorus removal reaction tank, and a second phosphorus removal reaction tank connected to the discharge outlet of the biochemical tank. A sedimentation tank connected to the outside of the second phosphorus removal reaction tank is also provided. The sedimentation tank is connected to a clear water tank on its outer side. This utility model can use a recycling mechanism to react unreacted raw materials, by-products and other impurities in the production waste liquid and then perform centralized pressure filtration treatment on the precipitate. At the same time, the treated waste liquid that meets the standards can be recycled and reused or centrally discharged, which greatly improves the treatment effect and efficiency of the waste liquid. It solves the problem that when recycling and reusing traditional production waste liquid, the complex nature of its by-products makes it difficult to efficiently separate morpholine from the complex mixture using traditional physicochemical methods (such as distillation and extraction), and the efficiency is low.

[0006] The oil separator has one inlet and two outlets, the equalization tank has two inlets and three outlets, the first phosphorus removal reaction tank has one inlet and two outlets, the catalytic oxidation tank has two inlets and two outlets, the sedimentation tank has one inlet and two outlets, and the sludge tank has two inlets and one outlet. The inlet of the oil separator is connected to the outlet of the wastewater discharge pipe. The first outlet of the oil separator is connected to the inlet of the equalization tank through a pipe. An emergency tank is set at the second outlet of the oil separator and connected to it. The first inlet of the emergency tank is connected to the second outlet of the oil separator through a pipe.

[0007] The first inlet of the equalization tank is connected to the outlet of the emergency tank via a pipeline. The first outlet of the equalization tank is connected to the inlet of the first phosphorus removal reaction tank via a pipeline. The second outlet of the equalization tank is connected to the first inlet of the catalytic oxidation tank via a pipeline. A recovery oil tank is installed at the third outlet of the equalization tank and is connected to it via a pipeline. The third outlet of the equalization tank is connected to the inlet of the recovery oil tank via a pipeline.

[0008] The second inlet of the catalytic oxidation tank is connected to the second outlet of the first phosphorus removal reaction tank via a pipeline. The first outlet of the catalytic oxidation tank is connected to the first inlet of the sludge tank via a pipeline. The second outlet of the catalytic oxidation tank is connected to the inlet of the biological treatment tank via a pipeline. The outlet of the biological treatment tank is connected to the inlet of the second phosphorus removal reaction tank via a pipeline. The outlet of the second phosphorus removal reaction tank is connected to the inlet of the sedimentation tank via a pipeline.

[0009] The second inlet of the sludge tank is connected to the first outlet of the sedimentation tank via a pipeline.

[0010] The second outlet of the sedimentation tank is connected to the inlet of the clear water tank via a pipeline.

[0011] A box-type filter press connected to the outlet of the sludge tank is installed.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. This utility model can achieve efficient removal of grease from wastewater by combining an oil separator and an emergency pool. At the same time, the emergency pool can be used to temporarily store and treat wastewater in the event of a leak or other emergency, which greatly enhances the efficiency and stability of the wastewater treatment of the waste liquid recovery device.

[0013] 2. This utility model can perform preliminary phosphating treatment on the waste liquid treated in the regulating tank that enters the catalytic oxidation tank through the first phosphorus removal reaction tank, so that most of the phosphorus in the wastewater is removed and precipitated. Moreover, it can perform further removal and precipitation of a small portion of the phosphorus in the wastewater after the reaction in the biochemical tank through the second phosphorus removal reaction tank. The operation is more convenient and efficient, greatly increasing the treatment efficiency of phosphorus in wastewater and making the operation more convenient.

[0014] 3. This utility model can use a box-type filter press to filter the sludge discharged from the sludge tank, so that it forms a sludge cake which is then collected and processed centrally.

[0015] 4. This utility model can achieve centralized collection of clear water in the sedimentation tank through a clear water tank, and then carry out unified recycling and reuse or discharge in compliance with standards, making the operation more convenient. Attached Figure Description

[0016] Figure 1 This is a process flow diagram of the waste liquid recovery device for morpholine production according to this utility model.

[0017] Explanation of reference numerals in the attached diagram: 100, production wastewater; 200, oil separator; 300, equalization tank; 400, first phosphorus removal reaction tank; 500, catalytic oxidation tank; 600, biochemical tank; 700, second phosphorus removal reaction tank; 800, sludge tank; 900, sedimentation tank; 110, clear water tank; 210, emergency tank; 310, oil recovery tank; 410, box filter press. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0019] like Figure 1As shown: This embodiment provides a wastewater recovery device for morpholine production, including a recovery mechanism connected to the discharge pipeline of production wastewater 100. The recovery mechanism includes an oil separator 200, an equalization tank 300 connected to the oil separator 200, a first phosphorus removal reaction tank 400 connected to the equalization tank 300, a catalytic oxidation tank 500 connected to the first phosphorus removal reaction tank 400, a biochemical tank 600 connected to the catalytic oxidation tank 500, a sludge tank 800 connected to the discharge outlets of the equalization tank 300, the catalytic oxidation tank 500, and the first phosphorus removal reaction tank 400, and a second phosphorus removal reaction tank 700 connected to the discharge outlet of the biochemical tank 600. A sedimentation tank 900 connected to the outer side of the 00 is also provided, and a clear water tank 110 connected to the outer side of the sedimentation tank 900 is provided. This utility model can realize the centralized pressure filtration treatment of the precipitate after the unreacted raw materials, by-products and other impurities in the production waste liquid are reacted through the recycling mechanism. At the same time, the treated qualified waste liquid can be recycled and reused or centrally discharged, which greatly improves the treatment effect and efficiency of the waste liquid. It solves the problem that when traditional production waste liquid is recycled and reused, due to the complex nature of its by-products, it may be difficult to efficiently separate morpholine from the complex mixture using traditional physicochemical methods (such as distillation and extraction), and the efficiency is low.

[0020] According to one embodiment of the present invention, such as Figure 1 As shown, the oil separator 200 has one inlet and two outlets, the equalization tank 300 has two inlets and three outlets, the first phosphorus removal reaction tank 400 has one inlet and two outlets, the catalytic oxidation tank 500 has two inlets and two outlets, the sedimentation tank 900 has one inlet and two outlets, and the sludge tank 800 has two inlets and one outlet. The inlet of the oil separator 200 is connected to the outlet of the discharge pipe of the production wastewater 100. The first outlet of the oil separator 200 is connected to the inlet of the equalization tank 300 through a pipe. An emergency tank 210 is provided at the second outlet of the oil separator 200 and is connected to it. The first inlet of the emergency tank 210 is connected to the second outlet of the oil separator 200 through a pipe. This utility model can realize the isolation and centralized treatment of aromatic oils in the production waste liquid through the oil separator 200, and prevent the oils from affecting the subsequent treatment equipment.

[0021] The first inlet of the equalization tank 300 is connected to the outlet of the emergency tank 210 via a pipeline. The first outlet of the equalization tank 300 is connected to the inlet of the first phosphorus removal reaction tank 400 via a pipeline. The second outlet of the equalization tank 300 is connected to the first inlet of the catalytic oxidation tank 500 via a pipeline. A recovery oil tank 310 is installed at the third outlet of the equalization tank 300 and is connected to the inlet of the recovery oil tank 310 via a pipeline. This utility model can adjust the flow rate and water quality of the homogenized wastewater through the equalization tank 300, and can also allow some suspended solid particles to settle.

[0022] The second inlet of the catalytic oxidation tank 500 is connected to the second outlet of the first phosphorus removal reaction tank 400 via a pipeline. The first outlet of the catalytic oxidation tank 500 is connected to the first inlet of the sludge tank 800 via a pipeline. The second outlet of the catalytic oxidation tank 500 is connected to the inlet of the biological treatment tank 600 via a pipeline. The outlet of the biological treatment tank 600 is connected to the inlet of the second phosphorus removal reaction tank 700 via a pipeline. The outlet of the second phosphorus removal reaction tank 700 is connected to the inlet of the sedimentation tank 900 via a pipeline. This invention can remove phosphorus from wastewater through the first phosphorus removal reaction tank 400, and then remove most of the pollutants in the wastewater through chemical oxidation and decomposition using a catalyst added in the catalytic oxidation tank 500, while also basically completely decomposing the hydrogen peroxide in the wastewater.

[0023] The second inlet of the sludge tank 800 is connected to the first outlet of the sedimentation tank 900 through a pipeline. This utility model can collect the settled sludge from the inside of the sedimentation tank 900 through the sludge tank 800, thereby achieving efficient separation of sewage and sludge.

[0024] The second outlet of the sedimentation tank 900 is connected to the inlet of the clear water tank 110 through a pipe. This utility model can realize the centralized collection of clear water in the sedimentation tank 900 through the clear water tank 110 for unified recycling or discharge in compliance with standards, making the operation more convenient.

[0025] A box-type filter press 410 is connected to the outlet of the sludge tank 800. This utility model can use the box-type filter press 410 to filter the sludge discharged from the sludge tank 800, so that it forms a sludge cake which is then collected and processed centrally.

[0026] How to use this utility model: First, it needs to be clarified that the recycling device involved in this utility model is mainly used for the purification and treatment of wastewater, and the classified collection of treated water and sediment. This utility model takes the wastewater generated in the production process of morpholine as an example to describe its usage method in detail. When it is necessary to recycle the waste liquid generated in the production process of morpholine, micro-air flotation and multi-stage oil separation measures are adopted to improve the oil separation efficiency. Multi-stage oil separation increases the effective height difference of oil-water gravity separation. The removed oil is concentrated in the upper layer of the oil separator 200 and discharged into the oil collection tank. The working fluid is then recovered through a reuse pipeline. The clarified liquid is sent to the catalytic oxidation tank 500, where a catalyst is added. Through advanced chemical oxidation, most pollutants in the wastewater are removed, and the hydrogen peroxide in the wastewater is almost completely decomposed. The settled sludge is discharged into the sludge tank 800, and the clarified water enters the biological treatment tank 600. The biological treatment tank 600 contains a large number of specific beneficial bacteria for treating this wastewater. Through biological reactions, the CODcr of the wastewater is ensured to meet standards. The effluent then passes through a coagulation reaction tank where a high-efficiency phosphorus removal agent is added to convert dissolved phosphorus in the water into insoluble phosphate particles. The wastewater is then transferred to sedimentation for removal through coagulation. The clean water is tested and measured in the clean water tank 110 and discharged after meeting the standards. During this process, the sludge in the sludge tank 800 is pumped into the box filter press 410 by a sludge pump and dewatered after being filtered by plate and frame filter press. The sludge cake is bagged and transported to the solid waste treatment center for treatment. The filtrate is returned to the equalization tank 300 for further treatment. This utility model can realize the reaction of unreacted raw materials, by-products and other impurities in the production waste liquid through the recycling mechanism and then perform centralized filter press treatment on the precipitate. At the same time, the treated waste liquid that meets the standards can be recycled and reused or centrally discharged, which greatly improves the treatment effect and efficiency of the waste liquid.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A waste liquid recovery device for morpholine production, characterized in that: The system includes a recycling mechanism connected to the discharge pipe of the production wastewater (100). The recycling mechanism includes an oil separator (200), an equalization tank (300) connected to the oil separator (200), a first phosphorus removal reaction tank (400) connected to the equalization tank (300), a catalytic oxidation tank (500) connected to the first phosphorus removal reaction tank (400), a biochemical tank (600) connected to the catalytic oxidation tank (500), a sludge tank (800) connected to the discharge outlets of the equalization tank (300), the catalytic oxidation tank (500) and the first phosphorus removal reaction tank (400), and a second phosphorus removal reaction tank (700) connected to the discharge outlet of the biochemical tank (600). A sedimentation tank (900) is also provided outside the second phosphorus removal reaction tank (700) and connected thereto. A clear water tank (110) is provided outside the sedimentation tank (900) and connected thereto.

2. The waste liquid recovery device for morpholine production as described in claim 1, characterized in that: The oil separator (200) has one inlet and two outlets, the equalization tank (300) has two inlets and three outlets, the first phosphorus removal reaction tank (400) has one inlet and two outlets, the catalytic oxidation tank (500) has two inlets and two outlets, the sedimentation tank (900) has one inlet and two outlets, and the sludge tank (800) has two inlets and one outlet. The inlet of the oil separator (200) is connected to the outlet of the discharge pipe of the production wastewater (100). The first outlet of the oil separator (200) is connected to the inlet of the equalization tank (300) through a pipe. An emergency tank (210) is provided at the second outlet of the oil separator (200) and is connected to it. The first inlet of the emergency tank (210) is connected to the second outlet of the oil separator (200) through a pipe.

3. The waste liquid recovery device for morpholine production as described in claim 2, characterized in that: The first inlet of the regulating tank (300) is connected to the outlet of the emergency tank (210) via a pipeline. The first outlet of the regulating tank (300) is connected to the inlet of the first phosphorus removal reaction tank (400) via a pipeline. The second outlet of the regulating tank (300) is connected to the first inlet of the catalytic oxidation tank (500) via a pipeline. A recovery oil tank (310) is provided at the third outlet of the regulating tank (300) and is connected to it via a pipeline. The third outlet of the regulating tank (300) is connected to the inlet of the recovery oil tank (310) via a pipeline.

4. The waste liquid recovery device for morpholine production as described in claim 3, characterized in that: The second inlet of the catalytic oxidation tank (500) is connected to the second outlet of the first phosphorus removal reaction tank (400) via a pipe. The first outlet of the catalytic oxidation tank (500) is connected to the first inlet of the sludge tank (800) via a pipe. The second outlet of the catalytic oxidation tank (500) is connected to the inlet of the biological treatment tank (600) via a pipe. The outlet of the biological treatment tank (600) is connected to the inlet of the second phosphorus removal reaction tank (700) via a pipe. The outlet of the second phosphorus removal reaction tank (700) is connected to the inlet of the sedimentation tank (900) via a pipe.

5. The waste liquid recovery device for morpholine production as described in claim 4, characterized in that: The second inlet of the sludge tank (800) is connected to the first outlet of the sedimentation tank (900) via a pipeline.

6. The waste liquid recovery device for morpholine production as described in claim 5, characterized in that: The second outlet of the sedimentation tank (900) is connected to the inlet of the clear water tank (110) via a pipeline.

7. The waste liquid recovery device for morpholine production as described in claim 6, characterized in that: A box-type filter press (410) connected to the outlet of the sludge tank (800) is provided.

Images