CN210505666U

CN210505666U - Phenol removing device for phenol-containing mother liquor

Info

Publication number: CN210505666U
Application number: CN201921148419.6U
Authority: CN
Inventors: 刘超; 师红亮
Original assignee: Henan Newland Pharmaceutical Co Ltd
Current assignee: Xintiandi Pharmaceutical Co.,Ltd.
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-12
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to a phenol removing device for phenol-containing mother liquor, which belongs to the technical field of environmental protection equipment and is formed by combining an extractant dripping tank, a primary extraction tank, a secondary extraction tank and a light-heavy phase separator; the utility model discloses technical scheme a phenol removing device that contains phenol mother liquor can effectively get rid of organic impurities such as phenols in the mother liquor, can the continuous operation, it has the advantage that simple operation, running cost hang down.

Description

Phenol removing device for phenol-containing mother liquor

Technical Field

The utility model belongs to the technical field of chemical industry and environmental protection equipment, in particular to a phenol removing device for phenol-containing mother liquor.

Background

With the rapid development of coal chemical industry, petrochemical industry, plastic fiber, pharmaceutical synthesis and other industries, the amount of various phenol-containing wastewater discharged to the environment is correspondingly increased. Phenols are becoming of high interest to researchers due to their high toxicity and long latency.

As phenolic wastewater poses serious threat to the health of animals, plants and human beings, the national supervision on wastewater in high-phenol-value production is continuously strengthened, and the phenolic wastewater must be strictly treated. The method can eliminate or reduce the content of phenolic pollutants in water, and not only relates to the safety of aquatic organisms and human beings, but also relates to the safety of water resources. Therefore, the research on the high-efficiency treatment technology and the device of the phenol-containing wastewater has great practical significance for protecting the environment.

The common methods for treating phenol-containing wastewater at home and abroad include three major methods, namely a physicochemical method, a chemical oxidation method and a biochemical method. The industrial application proves that the advantages and the limitations of any single method are realized, and the combination of the advantages of the methods for forming a new combined process for treating the phenolic wastewater is a development direction of phenolic wastewater treatment technology.

Taking a common biochemical treatment mode as an example, when high-concentration phenol-containing wastewater enters a biochemical tank, a great amount of microorganisms in the biochemical treatment tank die or lose activity due to strong toxicity of phenols, and the biochemical tank cannot work; when the high-concentration phenol-containing wastewater is subjected to phenol removal pretreatment before entering the biochemical pool, the phenol content in the water is greatly reduced, and the normal treatment of the biochemical system on the wastewater can be ensured.

Disclosure of Invention

The utility model discloses technical scheme is solving the purpose of above problem, has designed and made a phenol removal device of phenol-containing mother liquor, and it takes continuous extraction and continuous separation method to make the phenol value of high concentration phenol-containing waste water can reduce by a wide margin before getting into biochemical system, and then has guaranteed biochemical system's normal operating.

The utility model provides a phenol removing device of phenol-containing mother liquor, by phenol-containing mother liquor house steward, extractant dropwise add jar, the premixer, once extract jar, the secondary extract jar, light heavy phase separator, phenol phase overflow pipe, heavy phase overflow pipe, pressure balancer, blow-down pipe combination forms, a serial communication port, extractant dropwise add jar and phenol-containing wastewater pipe link to each other with the premixer, and stretch into once extract jar lower part through the premixer, once extract jar communicates secondary extraction tank bottom through the overflow pipe on its upper portion, the secondary extract jar links to each other with light heavy phase separator through the overflow pipe on its upper portion, heavy phase overflow pipe is connected to light heavy phase separator bottom, phenol phase overflow pipe is connected to light heavy phase separator top, phenol-containing mother liquor house steward, extractant dropwise add jar, the premixer, once extract jar, the secondary extract jar, light heavy phase separator, phenol phase overflow pipe, The heavy phase overflow pipe, the pressure balancer and the emptying pipe are organically combined together to form the phenol removing device for the phenol-containing mother liquor.

Preferably, the utility model discloses technical scheme a phenol device that removes of phenol-containing mother liquor, a serial communication port, the premixer be cylindrical tube structure, the extractant dropwise add jar is connected to the side opening, phenol-containing mother liquor house steward is connected to the open-top, the lower part opening passes through the pipeline and stretches into once extraction jar lower part.

Preferably, the phenol removing device for the phenol-containing mother liquor in the technical scheme of the utility model is characterized in that the light-heavy phase separator is formed by connecting 2-8 light-heavy phase separators with the same structure in parallel, the light-heavy phase separator is in a conical structure with a thin upper part and a thick lower part, and 2 layers of wave-blocking plates and 1 fluid disperser are arranged inside the light-heavy phase separator; the purpose of this design is to ensure that there is no fluctuation in the separation of the light and heavy phases and that the heavy phase is not carried over when the phenol phase overflows.

Preferably, the phenol removing device for the phenol-containing mother liquor in the technical scheme of the utility model is characterized in that the fluid disperser consists of a stainless steel pipe or a PP pipe with the diameter of 25-50mm, and the side surface and the lower surface of the pipeline are provided with 100 and 150 micropores with the diameter of 2-5 mm.

Preferably, the utility model discloses technical scheme a dephenolization device of phenol-containing mother liquor, its characterized in that, heavy phase overflow pipe be anti-U type structure, its top is provided with pressure balancer and blow-down pipe, pressure balancer's effect breaks siphon phenomenon and makes the overflow of light heavy phase can keep balance.

The utility model has the advantages that 1, the phenol removing device of the phenol-containing mother liquor can effectively reduce the concentration of organic impurities such as phenols in wastewater to a great extent, thereby ensuring the normal operation of a subsequent biochemical system; 2. the continuous operation can be realized, and the normal operation of industrial production is guaranteed; 3. the method has the advantages of convenient operation and low operation cost.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic view of the structure and the flow of a phenol removing device for phenol-containing mother liquor according to an embodiment of the present invention.

In fig. 1: the system comprises a phenol-containing mother liquid header pipe 01, a premixer 02, an extractant dripping tank 03, a primary extraction tank 04, a primary extraction overflow pipe 05, a secondary extraction tank 06, a secondary extraction overflow pipe 07, a light-heavy phase separator 08, a fluid disperser 09, a wave-blocking plate 10, a phenol phase area 11, a phenol phase overflow pipe 12, a phenol phase outlet 13, a phenol phase area vent pipe 14, a heavy phase overflow pipe 15, a pressure balancer 16, a heavy phase vent pipe 17 and a heavy phase outlet 18.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

The phenol removing device for mother liquor containing phenol comprises: the system comprises a phenol-containing mother liquid header pipe 01, a premixer 02, an extractant dripping tank 03, a primary extraction tank 04, a primary extraction overflow pipe 05, a secondary extraction tank 06, a secondary extraction overflow pipe 07, a light-heavy phase separator 08, a fluid disperser 09, a wave-blocking plate 10, a phenol phase area 11, a phenol phase overflow pipe 12, a phenol phase outlet 13, a phenol phase area vent pipe 14, a heavy phase overflow pipe 15, a pressure balancer 16, a heavy phase vent pipe 17 and a heavy phase outlet 18.

The phenol removing device for phenol-containing mother liquor in the embodiment of the specific embodiment is characterized in that an extractant dripping tank 03 and a phenol-containing mother liquor header pipe 01 are connected with a premixer 02, the phenol phase removing device is characterized in that the phenol phase removing device extends to the lower part of a primary extraction tank 04 through a premixer 02, the primary extraction tank 04 is communicated with the bottom of a secondary extraction tank 06 through an extraction overflow pipe 05 at the upper part of the primary extraction tank, the secondary extraction tank 06 is connected with a light-heavy phase separator 08 through a second extraction overflow pipe 07 at the upper part of the secondary extraction tank, the bottom of the light-heavy phase separator 08 is connected with a heavy phase overflow pipe 15, a phenol phase area 11 at the top of the light-heavy phase separator 08 is connected with a phenol phase overflow pipe 12, and a phenol-containing mother liquor header pipe 01, an extractant dropping tank 03, the premixer 02, the primary extraction tank 04, the secondary extraction tank 06, the light-heavy phase separator 08, the phenol phase overflow pipe 12, the heavy phase overflow pipe 15, a pressure balancer 16, a phenol phase.

The working flow of the phenol removing device for the phenol-containing mother liquor in the embodiment of the specific embodiment is as follows: opening an extractant dripping tank 03, mixing an extractant and phenolic wastewater in a premixer 02, then entering the bottom of a primary extraction tank 04, strongly stirring and mixing in the primary extraction tank, entering the bottom of a secondary extraction tank 06 through a primary extraction overflow pipe 05, strongly stirring and mixing in the secondary extraction tank, entering 2-8 light-heavy phase separators 08 connected in parallel through a secondary extraction overflow pipe 07 and a fluid disperser 09, gradually separating phases in the light-heavy phase separators after shunting and decelerating secondary extraction liquid, slowly allowing a phenol phase serving as a light phase to upwards pass through a wave-blocking plate to enter a phenol phase area 11, and further treating the phenol phase by a phenol phase overflow pipe 12 in a next process; the heavy phase flows downwards through the heavy phase overflow pipe 15 and slowly flows into the next working procedure for biochemical treatment.

Further, the phenol removing device for phenol-containing mother liquor in the embodiment of the present embodiment is characterized in that the premixer is a cylindrical tube structure, the opening on the side surface is connected with the extractant dropping tank, the opening on the top is connected with the phenol-containing mother liquor header pipe, and the opening on the lower portion extends into the lower portion of the primary extraction tank through a pipeline.

Furthermore, the phenol removing apparatus for mother liquor containing phenol according to the embodiment of the present invention is characterized in that the light-heavy phase separator is formed by connecting 2 to 8 light-heavy phase separators with the same structure in parallel, the light-heavy phase separator has a tapered structure with a thin upper part and a thick lower part, and 2 layers of wave-blocking plates and 1 fluid disperser are arranged inside the light-heavy phase separator; the purpose of this design is to ensure that there is no fluctuation in the separation of the light and heavy phases and that the phenol phase as the light phase overflows without carrying the heavy phase over.

Further, the phenol removing apparatus for mother liquor containing phenol in the embodiment of this embodiment is characterized in that the fluid disperser is composed of a stainless steel pipe or a PP pipe with a diameter of 25-50mm, and 100 and 150 micropores with a diameter of 2-5mm are formed on the side surface and the lower surface of the pipe.

Further, according to the phenol removal device for phenol-containing mother liquor in the embodiment of the present invention, the heavy phase overflow pipe is in an inverted U-shaped structure, and a pressure balancer and an emptying pipe are disposed at the top of the heavy phase overflow pipe, where the pressure balancer is used to break a siphon phenomenon so that the overflow of the light phase and the heavy phase can be kept balanced.

By the design, the phenol removing device for the phenol-containing mother liquor has the obvious beneficial effects that 1, the concentration of organic impurities such as phenols in wastewater can be effectively reduced greatly, so that the normal operation of a subsequent biochemical system is ensured; 2. the continuous operation can be realized, and the normal operation of industrial production is guaranteed; 3. the operation is convenient and fast, and the operation cost is low.

Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the present invention is to be accorded the widest scope consistent with the principles and novel features described herein.

Claims

1. A phenol removing device for phenol-containing mother liquor is formed by combining a phenol-containing mother liquor header pipe, an extractant dripping tank, a premixer, a primary extraction tank, a secondary extraction tank, a light-heavy phase separator, a phenol phase overflow pipe, a heavy phase overflow pipe pressure balancer and an emptying pipe The emptying pipes are organically combined together to form the phenol removing device for the phenol-containing mother liquor.

2. The phenol removing device for phenol-containing mother liquor according to claim 1, wherein the premixer has a cylindrical barrel structure, the side opening is connected with the extractant dripping tank, the top opening is connected with the phenol-containing mother liquor main pipe, and the lower opening extends into the lower part of the primary extraction tank through a pipeline.

3. The phenol removing device for the mother liquor containing phenol according to claim 1, wherein the light-heavy phase separator is formed by connecting 2-8 light-heavy phase separators with the same structure in parallel, the appearance of the light-heavy phase separator is fine at the top and coarse at the bottom, and 2 layers of wave-blocking plates and 1 fluid disperser are arranged in the light-heavy phase separator.

4. The phenol removing device for mother liquor containing phenol as claimed in claim 3, wherein said fluid disperser is made of stainless steel tube or PP tube with diameter of 25-50mm, and the side and bottom of the tube are provided with 100 and 150 micropores with diameter of 2-5 mm.

5. The phenol removal device for mother liquor containing phenol according to claim 1, wherein the heavy phase overflow pipe is of an inverted U-shaped structure, and a pressure balancer and a blow-down pipe are arranged at the top of the heavy phase overflow pipe.