CN210393927U - Mercury-containing wastewater treatment system of chloroethylene production process - Google Patents

Mercury-containing wastewater treatment system of chloroethylene production process Download PDF

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Publication number
CN210393927U
CN210393927U CN201821541096.2U CN201821541096U CN210393927U CN 210393927 U CN210393927 U CN 210393927U CN 201821541096 U CN201821541096 U CN 201821541096U CN 210393927 U CN210393927 U CN 210393927U
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water
communicated
pipeline
water outlet
production process
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CN201821541096.2U
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Chinese (zh)
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李常华
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Inner Mongolia Yidong Group Dongxing Chemical Co ltd
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Inner Mongolia Yidong Group Dongxing Chemical Co ltd
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Abstract

The utility model discloses a mercury-containing wastewater treatment system of chloroethylene production process, which comprises a chloroethylene production process water system, wherein the chloroethylene production process water system is communicated with a water inlet of a comprehensive pool through a wastewater pipeline, a water outlet of the comprehensive pool is communicated with a water inlet of an aeration device, and a water outlet of the aeration device is communicated with a water inlet of a mercury remover; the utility model has the advantages that: the utility model utilizes the waste acid tank which is returned from the production process of the chloroethylene as the sedimentation tank, thereby not only prolonging the service life of the comprehensive tank, but also reasonably utilizing the waste equipment, saving resources and saving cost; on the other hand, when clearing up the precipitation tank, entire system still can normally carry out waste water treatment, very big improvement work efficiency.

Description

Mercury-containing wastewater treatment system of chloroethylene production process
The technical field is as follows:
the utility model relates to a wastewater treatment system especially relates to a mercury-containing wastewater treatment system of chloroethylene production technology.
Background art:
in the chloroethylene production technology, mercury-containing waste water enters the comprehensive pool firstly for preliminary sedimentation, then is aerated in sequence, remove tribute, filter sand, the membrane filters the process and finally enters the clean water pool, a part of water in the clean water pool enters another part of the comprehensive pool and returns to the chloroethylene production technology for recycling, in the process, a large amount of sludge can be generated in the sludge in the comprehensive pool, the normal operation of the whole system can be ensured only by timely cleaning, the waste water cannot be treated during the sludge cleaning, and the work efficiency of waste water treatment is greatly reduced.
The utility model has the following contents:
an object of the utility model is to provide a mercury-containing effluent disposal system of chloroethylene production technology.
The utility model discloses by following technical scheme implement: the mercury-containing wastewater treatment system for the vinyl chloride production process comprises a water system for the vinyl chloride production process, wherein the water system for the vinyl chloride production process is communicated with a water inlet of a comprehensive pool through a wastewater pipeline, a water outlet of the comprehensive pool is communicated with a water inlet of an aeration device, a water outlet of the aeration device is communicated with a water inlet of a de-aerator, a water outlet of the de-aerator is communicated with a water inlet of a sand filter, a water outlet of the sand filter is communicated with a water inlet of a membrane filter, a water outlet of the membrane filter is communicated with a water inlet of a clean water pool, a first water outlet of the clean water pool is communicated with the water system for the vinyl chloride production process, and a second water outlet of the clean water pool is communicated with a water return port of the comprehensive pool; still be provided with the branch road total pipeline that communicates on the waste water pipeline, the branch road total pipeline is linked together with first branch road pipeline and second branch road pipeline, first branch road pipeline is linked together with the water inlet of first precipitation tank, second branch road pipeline is linked together with the water inlet of second precipitation tank, the delivery port and the first outlet conduit of first precipitation tank are linked together, the delivery port and the second outlet conduit of second precipitation tank are linked together, first outlet conduit with the second outlet conduit all is linked together with the total pipeline of play water, the total pipeline of play water with synthesize the pond and be linked together, first branch road pipeline the second branch road pipeline the branch road total pipeline a outlet conduit the second outlet conduit play water all installs the ball valve on the total pipeline of play water.
Further, the first precipitation tank and the second precipitation tank are both replaced waste acid tanks in the vinyl chloride production process.
The utility model has the advantages that: the utility model utilizes the waste acid tank which is returned from the production process of the chloroethylene as the sedimentation tank, thereby not only prolonging the service life of the comprehensive tank, but also reasonably utilizing the waste equipment, saving resources and saving cost; on the other hand, when clearing up the precipitation tank, entire system still can normally carry out waste water treatment, very big improvement work efficiency.
Description of the drawings:
FIG. 1 is a process flow diagram of the present invention;
in the figure, a water system 1 for a vinyl chloride production process, a comprehensive pool 2, a waste water pipeline 3, an aeration device 4, a support removing device 5, a sand filtering device 6, a membrane filtering device 7, a clean water pool 8, a branch main pipeline 9, a first branch pipeline 10, a second branch pipeline 11, a first settling tank 12, a second settling tank 13, a first water outlet pipeline 14, a second water outlet pipeline 15, a water outlet main pipeline 16 and a ball valve 17.
The specific implementation mode is as follows:
as shown in figure 1, the mercury-containing wastewater treatment system of the vinyl chloride production process comprises a water system 1 of the vinyl chloride production process, the water system 1 for the chloroethylene production process is communicated with the water inlet of the comprehensive pool 2 through a waste water pipeline 3, the water outlet of the comprehensive pool 2 is communicated with the water inlet of the aeration device 4, the water outlet of the aeration device 4 is communicated with the water inlet of the water removing device 5, the water outlet of the water removing device 5 is communicated with the water inlet of the sand filtering device 6, the water outlet of the sand filtering device 6 is communicated with the water inlet of the membrane filtering device 7, the water outlet of the membrane filter device 7 is communicated with the water inlet of the clean water tank 8, the first water outlet of the clean water tank 8 is communicated with the water system 1 for the vinyl chloride production process, and the second water outlet of the clean water tank 8 is communicated with the water return port of the comprehensive tank 2; a branch main pipeline 9 is also communicated with the waste water pipeline 3, the branch main pipeline 9 is communicated with a first branch pipeline 10 and a second branch pipeline 11, the first branch pipeline 10 is communicated with the water inlet of a first settling tank 12, the second branch pipeline 11 is communicated with the water inlet of a second settling tank 13, the water outlet of the first sedimentation tank 12 is communicated with a first water outlet pipeline 14, the water outlet of the second sedimentation tank 13 is communicated with a second water outlet pipeline 15, the first outlet conduit 14 and the second outlet conduit 15 are both in communication with a main outlet conduit 16, the water outlet main pipeline 16 is communicated with the comprehensive pool 2, and ball valves 17 are mounted on the first branch pipeline 10, the second branch pipeline 11, the branch main pipeline 9, the water outlet pipeline 14, the second water outlet pipeline 15 and the water outlet main pipeline 16; the first settling tank 12 and the second settling tank 13 are both replaced waste acid tanks in the vinyl chloride production process.
The working principle is as follows: during normal work, wastewater generated in the water system 1 for the vinyl chloride production process firstly enters the first settling tank 12 and the second settling tank 13 for settling, and then enters a subsequent water treatment process, and in the process, a large amount of sludge is settled in the first settling tank 12 or the second settling tank 13, so that the service time of the comprehensive pool is greatly prolonged; when the first sedimentation tank and the second sedimentation tank are cleaned, the machine does not need to be stopped, only the ball valves at the outlets of the branch main pipe 9 and the water outlet main pipe 16 are closed, and the first sedimentation tank 12 or the second sedimentation tank 13 can be cleaned; in addition, during normal operation, only one of the first settling tank 12 and the second settling tank 13 can be used or used simultaneously by opening and closing the ball valve 17, and the control can be flexibly performed during actual use.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A mercury-containing wastewater treatment system of a chloroethylene production process, which comprises a water system (1) of the chloroethylene production process, the water system (1) for the chloroethylene production process is communicated with the water inlet of the comprehensive pool (2) through a waste water pipeline (3), the water outlet of the comprehensive pool (2) is communicated with the water inlet of the aeration device (4), the water outlet of the aeration device (4) is communicated with the water inlet of the tribute removing device (5), the water outlet of the water removing device (5) is communicated with the water inlet of the sand filtering device (6), the water outlet of the sand filtering device (6) is communicated with the water inlet of the membrane filtering device (7), the water outlet of the membrane filtering device (7) is communicated with the water inlet of the clean water tank (8), a first water outlet of the clean water tank (8) is communicated with the water system (1) for the vinyl chloride production process, a second water outlet of the clean water tank (8) is communicated with a water return port of the comprehensive tank (2); the method is characterized in that: the waste water pipeline (3) is further provided with a branch main pipeline (9) in a communicated manner, the branch main pipeline (9) is communicated with a first branch pipeline (10) and a second branch pipeline (11), the first branch pipeline (10) is communicated with a water inlet of a first settling tank (12), the second branch pipeline (11) is communicated with a water inlet of a second settling tank (13), a water outlet of the first settling tank (12) is communicated with a first water outlet pipeline (14), a water outlet of the second settling tank (13) is communicated with a second water outlet pipeline (15), the first water outlet pipeline (14) and the second water outlet pipeline (15) are communicated with a water outlet main pipeline (16), the water outlet main pipeline (16) is communicated with the comprehensive pool (2), and the first branch pipeline (10), the second branch pipeline (11) are communicated with each other, Ball valves (17) are mounted on the branch main pipeline (9), the water outlet pipeline (14), the second water outlet pipeline (15) and the water outlet main pipeline (16).
2. The mercury-containing wastewater treatment system of vinyl chloride production process according to claim 1, characterized in that: the first precipitation tank (12) and the second precipitation tank (13) are both replaced waste acid tanks in the vinyl chloride production process.
CN201821541096.2U 2018-09-20 2018-09-20 Mercury-containing wastewater treatment system of chloroethylene production process Active CN210393927U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821541096.2U CN210393927U (en) 2018-09-20 2018-09-20 Mercury-containing wastewater treatment system of chloroethylene production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821541096.2U CN210393927U (en) 2018-09-20 2018-09-20 Mercury-containing wastewater treatment system of chloroethylene production process

Publications (1)

Publication Number Publication Date
CN210393927U true CN210393927U (en) 2020-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821541096.2U Active CN210393927U (en) 2018-09-20 2018-09-20 Mercury-containing wastewater treatment system of chloroethylene production process

Country Status (1)

Country Link
CN (1) CN210393927U (en)

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