CN215250198U - Waste water treatment device for furfural production - Google Patents
Waste water treatment device for furfural production Download PDFInfo
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- CN215250198U CN215250198U CN202121019802.9U CN202121019802U CN215250198U CN 215250198 U CN215250198 U CN 215250198U CN 202121019802 U CN202121019802 U CN 202121019802U CN 215250198 U CN215250198 U CN 215250198U
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Abstract
The utility model discloses a wastewater treatment device for furfural production, which comprises two sedimentation tanks, wherein each sedimentation tank is connected with a wastewater evaporator through a wastewater pipeline, each wastewater pipeline is provided with a wastewater pump machine, the top of the sedimentation tank is provided with a wastewater input pipeline, and a wastewater filter plate is arranged in the sedimentation tank below the wastewater input pipeline; the upper end of the side wall of the waste water evaporator is connected with a boiler, and the lower end of the side wall of the waste water evaporator is connected with a condenser; a steam outlet at the upper end of the waste water evaporator is connected with a steam-water separator through a steam exhaust pipeline, the steam outlet end of the steam-water separator is connected with the reaction kettle, and a water outlet at the bottom of the steam-water separator is connected with the sedimentation tank through a pipeline; a sewage outlet at the bottom of the waste water evaporator is connected to the sedimentation tank through a sewage pipeline; and a liquid level meter and a PLC are arranged at the side end of the waste water evaporator. The utility model discloses a waste water reuse of furfural production has practiced thrift manufacturing cost, has reduced environmental pollution.
Description
Technical Field
The utility model relates to a furfural production technical field, especially a effluent treatment plant is used in furfural production.
Background
The furfural is a chemical raw material, is mainly used for the aspects of synthetic resin, metallurgical casting, petroleum smelting, plastic products, anticorrosive materials, pharmacy, food addition and the like, and has wide application. The main in-situ production of the furfural is agricultural waste gas materials such as corncobs or crops, the raw materials are crushed and then added with sulfuric acid to be uniformly stirred for hydrolysis, a large amount of acidic waste water is generated in the hydrolysis process, the waste water mainly contains acetic acid and furfural, the pH value is 2-3, and the concentration of COD is about 16000-. If the acidic waste water is directly discharged, the environment and underground water are seriously polluted, the national emission standard cannot be met, and the discharge amount of the acidic waste water is large, so that the water resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a wastewater treatment device for furfural production, realizing wastewater recycling, saving production cost and reducing environmental pollution.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A wastewater treatment device for furfural production comprises two sedimentation tanks for storing wastewater, wherein each sedimentation tank is connected with a wastewater evaporator through a wastewater pipeline, each wastewater pipeline is provided with a wastewater pump for pumping wastewater into the wastewater evaporator, the top of each sedimentation tank is provided with a wastewater input pipeline, and a wastewater filter plate for filtering impurities in the wastewater is arranged in the sedimentation tank below the wastewater input pipeline; the upper end of the side wall of the waste water evaporator is connected with a boiler through a steam inlet pipeline, and the lower end of the side wall of the waste water evaporator is connected with a condenser for condensing steam through a steam outlet pipeline; a steam outlet at the upper end of the waste water evaporator is connected with a steam-water separator for steam-water separation through a steam outlet pipeline, the steam outlet end of the steam-water separator is connected with the reaction kettle, and a water outlet at the bottom of the steam-water separator is connected with the sedimentation tank through a pipeline; a sewage outlet at the bottom of the waste water evaporator is connected to the sedimentation tank through a sewage pipeline; the side of waste water evaporimeter is provided with the level gauge that is used for gathering liquid level information in the waste water evaporimeter and is used for controlling waste water treatment's PLC controller, and the input of PLC controller is connected to the output of level gauge, and the input of waste water pump machine is connected to the output of PLC controller.
The utility model provides an above-mentioned effluent treatment plant for furfural production, be provided with the waste water input solenoid valve that is used for controlling the waste water addition on the waste water input pipeline, the inside of sedimentation tank is provided with the level sensor who is used for monitoring the waste water volume, and the input of PLC controller is connected to level sensor's output, and the input of waste water input solenoid valve is connected to the output of PLC controller.
Above-mentioned effluent treatment plant is used in furfural production, be provided with the blowdown solenoid valve on the sewage pipes of waste water evaporimeter, the output of PLC controller is connected to the input of blowdown solenoid valve.
Above-mentioned effluent treatment plant is used in furfural production, the bottom of condenser goes out water end and passes through the end of intaking of pipe connection at the boiler, is provided with on the pipeline to be used for the condensate water pump machine in pumping the condensate water in the condenser into the boiler, and the steam outlet end of condenser passes through the pipe connection on steam inlet pipeline, is provided with on the steam inlet pipeline to be used for sending into the fan in the waste water evaporimeter with steam.
Above-mentioned effluent treatment plant is used in furfural production, the top of waste water evaporimeter is provided with the pressure gauge that is used for monitoring the gas pressure in the waste water evaporimeter, and the input of PLC controller is connected to the output of pressure gauge.
Above-mentioned effluent treatment plant is used in furfural production, be provided with the air exhauster that is used for sending into the steam-water separator with the steam that the waste water evaporimeter produced on the exhaust steam pipe, the output of PLC controller is connected to the input of air exhauster.
Above-mentioned effluent treatment plant for furfural production is provided with the exhaust filter that is used for preventing waste water along with steam escape on the inner wall that is located waste water evaporimeter steam extraction mouth below.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses a waste water evaporimeter is with waste water evaporation, gets rid of the acid composition in the waste water, and the water of getting rid of the acid composition continues to participate in the burning in entering the boiler after passing through the condenser condensation, has realized the waste water reuse of furfural production, has practiced thrift manufacturing cost, has reduced environmental pollution.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. the system comprises a sedimentation tank, a waste water pipeline, a waste water pump machine, a waste water input pipeline, a waste water input electromagnetic valve, a waste water filter plate, a waste water evaporator, a boiler, a steam inlet pipeline, a steam outlet pipeline, a condenser, a condensate water pump machine.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A waste water treatment device for furfural production is shown in figure 1 and comprises a sedimentation tank 1, a waste water evaporator 7, a boiler 8, a condenser 11, a steam-water separator 15 and a PLC (programmable logic controller) 20. Sedimentation tank 1 is used for depositing waste water, waste water evaporator 7 passes through waste water pipeline 2 and connects on sedimentation tank 1, be used for carrying out evaporation treatment to waste water, boiler 8 is connected on waste water evaporator 7's steam inlet, be used for accelerating waste water evaporation with the waste water mixture, condenser 11 passes through steam outlet pipeline 10 and connects on waste water evaporator 7, be used for carrying out condensation treatment to the steam after reacting with waste water, catch water 15 passes through the steam outlet of exhaust pipe connection waste water evaporator 7, be used for carrying out catch water to exhaust steam, PLC controller 20 sets up on waste water evaporator's outer wall, be used for controlling waste water treatment.
Be provided with waste water filter 6 in the sedimentation tank 1 of waste water input pipeline 4 below for filter and get into impurity in the sedimentation tank waste water, filter impurity in the top of waste water filter 6, do not get into the inside of sedimentation tank.
Through setting up two sedimentation tanks 1, realized that sedimentation tank one is equipped with one, when carrying out waste water at a sedimentation tank and deposiing, handle the waste water in another sedimentation tank, improved waste water treatment's speed, the time of waste water sedimentation in the sedimentation tank is set for to the accessible PLC controller, after reaching the settling time, can switch the waste water pump machine of sedimentation tank, changes the sedimentation tank that supplies water to the waste water evaporator.
The side wall of the waste water evaporator 7 is provided with a liquid level meter 17 for collecting waste water liquid level information in the waste water evaporator, the output end of the liquid level meter is connected with the input end of the PLC, and when the liquid level in the waste water evaporator is reduced, the waste water pump machine 3 is started to add waste water into the waste water evaporator.
The upper end of the side wall of the waste water evaporator 7 is provided with a steam inlet pipeline 9, the steam inlet pipeline 9 is connected to the boiler 8, the steam inlet pipeline 9 is provided with a fan, steam used for pumping the boiler 8 is sent into the waste water evaporator 7, and the steam entering the waste water evaporator is mixed with waste water to improve the efficiency of waste water evaporation. The lower end of the side wall of the waste water evaporator 7 is provided with a steam outlet pipeline 10, steam and waste water are mixed and then flow out of the steam outlet pipeline, and a condenser 11 is connected to the steam outlet pipeline 10 and is used for condensing the steam after reacting with the waste water.
The condenser 11 condenses the steam, the condensed water flows out through the water outlet end at the bottom, the water outlet end is connected with the water inlet end of the boiler 8 through a pipeline, a condensate water pump 12 is arranged on the pipeline and used for pumping the condensate water in the condenser into the boiler, the steam outlet end of the condenser 11 is connected with the steam inlet pipeline 9 through a pipeline, and the uncondensed steam enters the waste water evaporator to continue working.
The upper end of the waste water evaporator 7 is provided with a steam outlet which is connected to a steam-water separator 15 through a steam exhaust pipeline 13, the steam exhaust pipeline 13 is provided with an exhaust fan 14 for sending steam generated by the waste water evaporator into the steam-water separator 15, and the input end of the exhaust fan 14 is connected with the output end of the PLC.
The top of the waste water evaporator 7 is provided with a pressure gauge 18 for monitoring the pressure of the gas in the waste water evaporator. The output of pressure gauge is connected the input of PLC controller, and when monitoring pressure when too big, the PLC controller opens the air exhauster, extracts the steam in the waste water evaporator and gets into in the catch water and carry out steam-water separation, and pressure reduction back, the air exhauster stops, and catch water pause work reduces the energy consumption.
The inner wall of the waste water evaporator 7 below the steam outlet is provided with a steam discharging filter plate 19 for preventing the waste water from escaping along with the steam.
The steam-water separator 15 is used for separating steam from water, the separated steam is connected into the reaction kettle 16 through the steam outlet end above the steam separator, and the separated water is connected onto the sedimentation tank 1 through a water outlet at the bottom of the steam separator and a pipeline.
The bottom of waste water evaporimeter 7 sets up the drain, and the drain passes through sewage pipes 21 to be connected on sedimentation tank 1, and remaining sewage flows through the drain during waste water evaporation, deposits in getting into the sedimentation tank through sewage pipes. The sewage discharge pipeline is provided with a sewage discharge electromagnetic valve 22 for controlling sewage discharge, and the input end of the sewage discharge electromagnetic valve is connected with the output end of the PLC controller.
The utility model discloses when handling the waste water that produces furfural production, send into the sedimentation tank with waste water earlier and filter the sediment, waste water after the sediment is gone into the waste water evaporimeter through waste water pump machine pump and is mixed the back evaporation with the steam that the boiler sent into, steam after the evaporation carries out steam-water separation in getting into the catch water through the exhaust steam pipe, continue to participate in furfural production in the steam entering reation kettle after the separation, water after the separation continues to participate in sediment and waste water evaporation in getting into the sedimentation tank through the pipeline, the reuse of waste water has been realized.
Claims (7)
1. The utility model provides a waste water treatment device is used in furfural production which characterized in that: the device comprises two sedimentation tanks (1) for storing wastewater, wherein each sedimentation tank (1) is connected with a wastewater evaporator (7) through a wastewater pipeline (2), a wastewater pump (3) for pumping wastewater into the wastewater evaporator is arranged on each wastewater pipeline (2), a wastewater input pipeline (4) is arranged at the top of each sedimentation tank (1), and a wastewater filter plate (6) for filtering impurities in the wastewater is arranged in each sedimentation tank below the wastewater input pipeline (4); the upper end of the side wall of the waste water evaporator (7) is connected with a boiler (8) through a steam inlet pipeline (9), and the lower end of the side wall of the waste water evaporator (7) is connected with a condenser (11) for condensing steam through a steam outlet pipeline (10); a steam outlet at the upper end of the waste water evaporator (7) is connected with a steam-water separator (15) for steam-water separation through a steam outlet pipeline (13), the steam outlet end of the steam-water separator (15) is connected to a reaction kettle (16), and a water outlet at the bottom of the steam-water separator (15) is connected to the sedimentation tank (1) through a pipeline; a sewage discharge outlet at the bottom of the waste water evaporator (7) is connected to the sedimentation tank (1) through a sewage discharge pipeline (21); the side of waste water evaporimeter (7) is provided with level gauge (17) and PLC controller (20) that are used for controlling waste water treatment that are used for gathering liquid level information in the waste water evaporimeter, and the input of PLC controller is connected to the output of level gauge, and the input of waste water pump machine is connected to the output of PLC controller.
2. The wastewater treatment device for furfural production according to claim 1, characterized in that: the waste water input pipeline is provided with a waste water input electromagnetic valve (5) used for controlling the waste water adding amount, the inside of the sedimentation tank is provided with a liquid level sensor used for monitoring the waste water amount, the output end of the liquid level sensor is connected with the input end of the PLC, and the output end of the PLC is connected with the input end of the waste water input electromagnetic valve.
3. The wastewater treatment device for furfural production according to claim 1, characterized in that: a sewage discharge electromagnetic valve (22) is arranged on a sewage discharge pipeline (21) of the waste water evaporator (7), and the input end of the sewage discharge electromagnetic valve is connected with the output end of the PLC controller.
4. The wastewater treatment device for furfural production according to claim 1, characterized in that: the bottom of condenser (11) is gone out the water end and is passed through the end of intaking of pipe connection in boiler (8), is provided with on the pipeline and is used for pumping the condensate water pump machine (12) in the boiler with the condensate water in the condenser, and the steam outlet end of condenser (11) passes through the pipe connection on steam inlet pipeline (9), is provided with on steam inlet pipeline (9) and is used for sending into the fan in waste water evaporator (7) with steam.
5. The wastewater treatment device for furfural production according to claim 1, characterized in that: the top of waste water evaporimeter (7) is provided with pressure gauge (18) that are used for monitoring the gas pressure in the waste water evaporimeter, and the input of PLC controller is connected to the output of pressure gauge.
6. The wastewater treatment device for furfural production according to claim 1, characterized in that: exhaust pipe (13) are last to be provided with air exhauster (14) that are used for sending into catch water (15) with the steam that waste water evaporator produced, and the output of PLC controller is connected to the input of air exhauster.
7. The wastewater treatment device for furfural production according to claim 1, characterized in that: an exhaust steam filter plate (19) for preventing the exhaust water from escaping along with the steam is arranged on the inner wall below the exhaust steam port of the waste water evaporator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019802.9U CN215250198U (en) | 2021-05-13 | 2021-05-13 | Waste water treatment device for furfural production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019802.9U CN215250198U (en) | 2021-05-13 | 2021-05-13 | Waste water treatment device for furfural production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215250198U true CN215250198U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121019802.9U Active CN215250198U (en) | 2021-05-13 | 2021-05-13 | Waste water treatment device for furfural production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215250198U (en) |
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2021
- 2021-05-13 CN CN202121019802.9U patent/CN215250198U/en active Active
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