CN212102420U - Low-cost, easy-to-operate desulfurization waste water zero-discharge system - Google Patents
Low-cost, easy-to-operate desulfurization waste water zero-discharge system Download PDFInfo
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- CN212102420U CN212102420U CN202020378373.3U CN202020378373U CN212102420U CN 212102420 U CN212102420 U CN 212102420U CN 202020378373 U CN202020378373 U CN 202020378373U CN 212102420 U CN212102420 U CN 212102420U
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Abstract
The utility model relates to a low-cost, easy-to-operate desulfurization waste water zero discharge system, including first-order reaction tank, first-order sedimentation tank, second grade reaction tank and second grade sedimentation tank, degree of depth reaction tank, degree of depth sedimentation tank and multi-media filter, vaporizer, condensate chamber and communicating pipe, communicating pipe and vaporizer and condensate chamber are connected, set up the condenser pipe in the vaporizer, set up the evaporating pipe in the condensate chamber, condenser pipe one end is connected with the evaporating pipe through the compressor, the other end is connected with the reservoir, the reservoir is connected with the evaporating pipe through the choke valve; the vaporization chamber is connected with a waste water storage tank, the waste water storage tank is connected with a first sewage lifting pump, a spraying device is arranged in the vaporization chamber, the first sewage lifting pump is connected with the spraying device, and a water baffle is arranged above the spraying device; the top of the condensed water chamber is connected with a vacuum pump, and the bottom of the condensed water chamber is connected with a condensed water lifting pump; set up the second honeycomb duct on the second grade sedimentation tank, the waste water storage tank is connected the second sewage elevator pump, and the second sewage elevator pump is connected with degree of depth reaction tank, and this system energy consumption is low.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment technique and specifically relates to a system of desulfurization waste water zero release of low cost, easy operation.
Background
The desulfurization wastewater zero emission technology on the market at present generally concentrates desulfurization wastewater into high-concentration wastewater through an evaporation pond or an ultrafiltration-nanofiltration-reverse osmosis process or a membrane reduction method or a multi-stage low-temperature evaporation or MVR evaporator or electrodialysis and other methods after the desulfurization wastewater is reacted and precipitated by a reaction tank and a precipitation tank, and then completely separates pervaporation salt from water or sprays the high-concentration wastewater into flue gas.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a system of desulfurization waste water zero release of low cost, easy operation to solve foretell at least one technical problem.
One technical scheme of the application is as follows: a low-cost and easy-operation desulfurization wastewater zero-discharge system, which comprises a first reaction precipitation system, a second reaction precipitation system and a wastewater concentration system, the first reaction sedimentation system comprises a first-stage reaction tank, a first-stage sedimentation tank, a second-stage reaction tank and a second-stage sedimentation tank which are arranged in sequence, the second reaction sedimentation system comprises a deep reaction tank, a deep sedimentation tank and a multi-media filter which are arranged in sequence, the wastewater concentration system comprises a vaporization chamber, a water condensation chamber and a communicating pipe, one end of the communicating pipe is connected with the top of the vaporization chamber, the other end of the communicating pipe is connected with the top of the water condensation chamber, a condensing pipe is arranged in the vaporizing chamber, an evaporating pipe is arranged in the water condensing chamber, one end of the condensing pipe with a higher position is connected with one end of the evaporating pipe with a higher position through a compressor, the other end of the condensation pipe is connected with a liquid storage device, and one end of the liquid storage device, which is not connected with the condensation pipe, is connected with the other end of the evaporation pipe through a throttle valve; a first guide pipe is arranged at the bottom end of the vaporization chamber, one end of the first guide pipe, which is not connected with the vaporization chamber, is connected with a wastewater storage tank, the wastewater storage tank is connected with a first sewage lifting pump, a spraying device is arranged in the vaporization chamber above the condensation pipe, the first sewage lifting pump is connected with the spraying device through a water supply pipe, and a water baffle is arranged above the spraying device; the top of the condensed water chamber is connected with a vacuum pump, and the bottom of the condensed water chamber is connected with a condensed water lifting pump; and a second guide pipe for introducing the wastewater of the second-stage sedimentation tank into the wastewater storage tank is arranged on the second-stage sedimentation tank, the wastewater storage tank is further connected with a second sewage lifting pump, and the second sewage lifting pump is connected with the deep reaction tank.
Preferably, the multi-media filter is connected with a filtered water lifting pump, and the filtered water lifting pump is connected with a sodium hypochlorite generator; the first-stage sedimentation tank and/or the second-stage sedimentation tank are provided with a filter press.
Preferably, the bottom of the vaporization chamber is provided with an electric heater.
Preferably, a first support, a second support, a third support and a fourth support are arranged in the vaporizing chamber; the fourth support is horizontally arranged close to the spraying device, and the edge position of the fourth support is spaced from the inner wall of the vaporizing chamber; the second support is positioned above the fourth support, the edge position of the second support is connected with the inner wall of the vaporization chamber, and the middle position of the second support forms a hollow structure; the third support is vertically arranged, one end of the third support is connected with the second support, and the other end of the third support is connected with the fourth support; the first support is positioned above the second support, and the edge position of the first support is connected with the inner wall of the vaporization chamber; and water baffles are uniformly arranged on the first support, the second support, the third support and the fourth support.
Preferably, the spraying device is a spray head; the bottom ends of the vaporization chamber and the water condensation chamber are provided with sewage outlets; and the evaporation pipe and the condensation pipe are filled with refrigerant.
Preferably, a valve is arranged between the wastewater storage tank and the first sewage lifting pump; a valve is arranged on the first flow guide pipe; a plug and/or a valve are/is arranged on the sewage outlet; and a valve is arranged between the condensed water chamber and the condensed water lifting pump.
The utility model provides a system of desulfurization waste water zero release of low cost, easy operation, the use is as follows:
firstly, placing the desulfurization wastewater in a primary reaction tank, and adding NaOH or lime milk into the primary reaction tank to remove most heavy metal ions; then transferring the wastewater in the first-stage reaction tank to a first-stage sedimentation tank for sedimentation, and simultaneously adding a coagulant aid into the first-stage sedimentation tank to remove solid sediment; then the wastewater in the first-stage sedimentation tank is placed in a second-stage reaction tank, and organic sulfur and FeClSO are added into the second-stage reaction tank4Removing heavy metal ions and performing primary flocculation; then transferring the waste water in the secondary reaction tank to a secondary sedimentation tank for sedimentation, simultaneously adding a coagulant aid into the secondary sedimentation tank to remove suspended matters, then transferring the waste water in the secondary sedimentation tank to a waste water storage tank, pumping the waste water in the waste water storage tank to a spraying device by using a first sewage lifting pump, atomizing the waste water by the spraying device, and then carrying out heat exchange with condensed light, wherein in the heat exchange process, most of the waste water is evaporated, a small part of the non-evaporated waste water flows back to the waste water storage tank, the evaporated water vapor bypasses a water baffle plate to a water condensation chamber, the water vapor in the water condensation chamber is condensed into water by heat exchange with an evaporation pipe and stored at the bottom of the water condensation chamber, and finally the water is pumped by a condensed water lifting pump, so that the waste water in the waste water storage tank is continuously concentrated, the operation is stopped after the waste water reaches a preset concentration multiple, at the moment, the waste water is high-concentration, and adding organic sulfur and FeClSO4Removing heavy metal ions, then putting the wastewater in the deep reaction tank into a deep sedimentation tank for sedimentation, simultaneously adding a coagulant aid into the deep sedimentation tank to remove suspended matters, then putting the water in the deep sedimentation tank into a multi-media filter for filtering to form filtered water, and finally producing a sodium hypochlorite product through a sodium hypochlorite generator to sterilize and kill algae or bacteria in systems such as cooling water and the like.
In the process, in order to vaporize the waste water at a low temperature, a vacuum pump pumps non-condensable gas and the like at the top of a condensation chamber to enable the vaporization chamber to be in a low-pressure state, the vaporization chamber vaporizes at the low temperature, generally, the vaporization chamber can be pumped to be vacuum to a pressure of 10kPa, the boiling point of the waste water is below 50 ℃, a heat source in the vaporization process adopts a refrigerant as a heat source, the refrigerant is liquefied by heat absorption in a condensation pipe to provide heat required by vaporization of the waste water, the refrigerant flows through a liquid storage device after being liquefied and is changed into low-temperature low-pressure liquid through a throttle valve, the low-temperature low-pressure gas is contacted with water vapor in the condensation chamber through an evaporation pipe to absorb the heat liquefied by the water vapor and is vaporized into low-temperature low-pressure gas, the low-temperature low-pressure gas is compressed into high-temperature high-pressure gas at a temperature of 60-, and a cold source is provided for the water condensation chamber.
The utility model provides a low cost, the system of desulfurization waste water zero release of easy operation, combine current structure, the application refrigerant provides the heat source (sensible heat and latent heat of vaporization) that the water evaporation needs at the vaporizer, absorb the latent heat and the supercooled sensible heat of taking away the required release of vapor condensation at the water condensing chamber again, and make the low pressure jointly with the vacuum pump, guarantee waste water boiling vaporization at low temperature, concentrated flow only needs the compressor, vacuum pump and elevator pump consume the electric energy, compare with the traditional mode that provides the heat energy with the external heat source, the energy efficiency ratio is high, the energy consumption is low, low cost, and owing to need not set up the external heat source, the overall structure of device has been simplified, area reduces. The process flow is simple, and the overall operation effect of the equipment is good.
Another technical scheme of the application is as follows: a low-cost and easy-operation desulfurization wastewater zero-discharge system, which comprises a first reaction precipitation system, a second reaction precipitation system and a wastewater concentration system, the first reaction sedimentation system comprises a first-stage reaction tank and a first-stage sedimentation tank which are arranged in sequence, the second reaction sedimentation system comprises a deep reaction tank, a deep sedimentation tank and a multi-media filter which are arranged in sequence, the wastewater concentration system comprises a vaporization chamber, a water condensation chamber and a communicating pipe, one end of the communicating pipe is connected with the top of the vaporization chamber, the other end of the communicating pipe is connected with the top of the water condensation chamber, a condensing pipe is arranged in the vaporizing chamber, an evaporating pipe is arranged in the water condensing chamber, one end of the condensing pipe with a higher position is connected with one end of the evaporating pipe with a higher position through a compressor, the other end of the condensation pipe is connected with a liquid storage device, and one end of the liquid storage device, which is not connected with the condensation pipe, is connected with the other end of the evaporation pipe through a throttle valve; a first guide pipe is arranged at the bottom end of the vaporization chamber, one end of the first guide pipe, which is not connected with the vaporization chamber, is connected with a wastewater storage tank, the wastewater storage tank is connected with a first sewage lifting pump, a spraying device is arranged in the vaporization chamber above the condensation pipe, the first sewage lifting pump is connected with the spraying device through a water supply pipe, and a water baffle is arranged above the spraying device; the top of the condensed water chamber is connected with a vacuum pump, and the bottom of the condensed water chamber is connected with a condensed water lifting pump; the one-level sedimentation tank is provided with a second flow guide pipe for introducing the wastewater of the one-level sedimentation tank into the wastewater storage tank, the wastewater storage tank is further connected with a second sewage lifting pump, and the second sewage lifting pump is connected with the deep reaction tank.
The utility model provides a system of desulfurization waste water zero release of low cost, easy operation, the use is as follows:
firstly, placing the desulfurization wastewater in a primary reaction tank, and adding NaOH or lime milk into the primary reaction tank to remove most heavy metal ions; then transferring the waste water in the first-stage sedimentation tank into a waste water storage tank, pumping the waste water in the waste water storage tank into a spraying device by using a first sewage lifting pump, atomizing the waste water by using the spraying device, and then carrying out photothermal exchange with condensation, wherein in the heat exchange process, most of the waste water is evaporated, a small part of the unevaporated waste water flows back into the waste water storage tank, evaporated steam bypasses a water baffle plate to a water condensation chamber, the steam in the water condensation chamber is thermally exchanged with an evaporation pipe to be condensed into water which is stored at the bottom of the water condensation chamber and finally pumped out by using a condensation water lifting pump, so that the waste water in the waste water storage tank is continuously concentrated, the waste water stops running after reaching a preset concentration multiple, at the moment, the waste water is high-concentration waste water, the high-concentration waste water is placed in4Removing heavy metal ions, then putting the wastewater in the deep reaction tank into a deep sedimentation tank for sedimentation, simultaneously adding a coagulant aid into the deep sedimentation tank to remove suspended matters, then putting the water in the deep sedimentation tank into a multi-media filter for filtering to form filtered water, and finally producing a sodium hypochlorite product through a sodium hypochlorite generator to sterilize and kill algae or bacteria in systems such as cooling water and the like.
In the process, in order to vaporize the waste water at a low temperature, a vacuum pump pumps non-condensable gas and the like at the top of a condensation chamber to enable the vaporization chamber to be in a low-pressure state, the vaporization chamber vaporizes at the low temperature, generally, the vaporization chamber can be pumped to be vacuum to a pressure of 10kPa, the boiling point of the waste water is below 50 ℃, a heat source in the vaporization process adopts a refrigerant as a heat source, the refrigerant is liquefied by heat absorption in a condensation pipe to provide heat required by vaporization of the waste water, the refrigerant flows through a liquid storage device after being liquefied and is changed into low-temperature low-pressure liquid through a throttle valve, the low-temperature low-pressure gas is contacted with water vapor in the condensation chamber through an evaporation pipe to absorb the heat liquefied by the water vapor and is vaporized into low-temperature low-pressure gas, the low-temperature low-pressure gas is compressed into high-temperature high-pressure gas at a temperature of 60-, and a cold source is provided for the water condensation chamber.
The utility model provides a low cost, the system of desulfurization waste water zero release of easy operation, combine current structure, the application refrigerant provides the heat source (sensible heat and latent heat of vaporization) that the water evaporation needs at the vaporizer, absorb the latent heat and the supercooled sensible heat of taking away the required release of vapor condensation at the water condensing chamber again, and make the low pressure jointly with the vacuum pump, guarantee waste water boiling vaporization at low temperature, concentrated flow only needs the compressor, vacuum pump and elevator pump consume the electric energy, compare with the traditional mode that provides the heat energy with the external heat source, the energy efficiency ratio is high, the energy consumption is low, low cost, and owing to need not set up the external heat source, the overall structure of device has been simplified, area reduces. The process flow is simple, and the overall operation effect of the equipment is good.
Drawings
FIG. 1 is a schematic structural diagram of a low-cost and easy-to-operate system for zero discharge of desulfurization wastewater provided by the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic structural diagram of another low-cost and easy-to-operate system for zero discharge of desulfurization waste water provided by the present invention;
wherein the reference numbers: the device comprises a vaporization chamber 1, a condensate chamber 2, a communicating pipe 3, a condensation pipe 4, an evaporation pipe 5, a compressor 6, a liquid storage device 7, a throttle valve 8, a first guide pipe 9, a waste water storage tank 10, a first sewage lifting pump 11, a spraying device 12, a water supply pipe 13, a water baffle 14, a vacuum pump 15, a condensed water lifting pump 16, an electric heater 17, a sewage draining outlet 18, a first support 19, a second support 20, a third support 21, a fourth support 22, a second guide pipe 91, a first-level reaction tank 101, a first-level sedimentation tank 102, a second-level reaction tank 103, a second-level sedimentation tank 104, a deep reaction tank 105, a deep sedimentation tank 106 and a multi-medium filter 107, a filtered water lifting pump 108, a sodium hypochlorite generator 109, a filter press 110 and a second sewage lifting pump 111.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The utility model provides a system of desulfurization waste water zero release of low cost, easy operation, the use is as follows:
firstly, placing the desulfurization wastewater in a primary reaction tank, and adding NaOH or lime milk into the primary reaction tank to remove most heavy metal ions; then transferring the wastewater in the first-stage reaction tank to a first-stage sedimentation tank for sedimentation, and simultaneously adding a coagulant aid into the first-stage sedimentation tank to remove solid sediment; then the wastewater in the first-stage sedimentation tank is placed in a second-stage reaction tank, and organic sulfur and FeClSO are added into the second-stage reaction tank4Removing heavy metal ions and performing primary flocculation; then transferring the waste water in the secondary reaction tank to a secondary sedimentation tank for sedimentation, simultaneously adding a coagulant aid into the secondary sedimentation tank to remove suspended matters, then transferring the waste water in the secondary sedimentation tank to a waste water storage tank, pumping the waste water in the waste water storage tank to a spraying device by using a first sewage lifting pump, atomizing the waste water by the spraying device, and then carrying out heat exchange with condensed light, wherein in the heat exchange process, most of the waste water is evaporated, a small part of the non-evaporated waste water flows back to the waste water storage tank, the evaporated water vapor bypasses a water baffle plate to a water condensation chamber, the water vapor in the water condensation chamber is condensed into water by heat exchange with an evaporation pipe and stored at the bottom of the water condensation chamber, and finally the water is pumped by a condensed water lifting pump, so that the waste water in the waste water storage tank is continuously concentrated, the operation is stopped after the waste water reaches a preset concentration multiple, at the moment, the waste water is high-concentration, and adding organic sulfur and FeClSO4Removing heavy metal ions, and then putting the wastewater in the deep reaction tank into deep precipitationPrecipitating in the tank, adding coagulant aid into the deep sedimentation tank to remove suspended matters, then putting the water in the deep sedimentation tank into a multi-media filter for filtering to form filtered water, and finally passing the filtered water through a sodium hypochlorite generator to generate a sodium hypochlorite product for sterilizing and killing algae or bacteria in systems such as cooling water and the like.
In the process, in order to vaporize the waste water at a low temperature, a vacuum pump pumps non-condensable gas and the like at the top of a condensation chamber to enable the vaporization chamber to be in a low-pressure state, the vaporization chamber vaporizes at the low temperature, generally, the vaporization chamber can be pumped to be vacuum to a pressure of 10kPa, the boiling point of the waste water is below 50 ℃, a heat source in the vaporization process adopts a refrigerant as a heat source, the refrigerant is liquefied by heat absorption in a condensation pipe to provide heat required by vaporization of the waste water, the refrigerant flows through a liquid storage device after being liquefied and is changed into low-temperature low-pressure liquid through a throttle valve, the low-temperature low-pressure gas is contacted with water vapor in the condensation chamber through an evaporation pipe to absorb the heat liquefied by the water vapor and is vaporized into low-temperature low-pressure gas, the low-temperature low-pressure gas is compressed into high-temperature high-pressure gas at a temperature of 60-, and a cold source is provided for the water condensation chamber.
The utility model provides a low cost, the system of desulfurization waste water zero release of easy operation, combine current structure, the application refrigerant provides the heat source (sensible heat and latent heat of vaporization) that the water evaporation needs at the vaporizer, absorb the latent heat and the supercooled sensible heat of taking away the required release of vapor condensation at the water condensing chamber again, and make the low pressure jointly with the vacuum pump, guarantee waste water boiling vaporization at low temperature, concentrated flow only needs the compressor, vacuum pump and elevator pump consume the electric energy, compare with the traditional mode that provides the heat energy with the external heat source, the energy efficiency ratio is high, the energy consumption is low, low cost, and owing to need not set up the external heat source, the overall structure of device has been simplified, area reduces. The process flow is simple, and the overall operation effect of the equipment is good.
Through tests, the energy efficiency ratio of the utility model can exceed 3.0, which saves 2/3 energy consumption cost compared with the current multi-stage desulfurization zero-emission system, (because of the comparison between the systems, the data in the comparison table and the comparison items should be different, please provide)
The following is a comparison table of the effect of the system and the effect of the existing multi-stage desulfurization zero-emission system
In a preferred embodiment, an electric heater 17 is further installed at the bottom of the vaporization chamber to supplement energy loss that may be present and to perform secondary evaporation on a small portion of the unevaporated wastewater in the vaporization chamber before returning to the wastewater storage tank, thereby increasing the wastewater concentration efficiency.
In order to facilitate the drainage, a drain outlet 18 is further installed at the bottom end of the vaporization chamber and the water condensation chamber, and the arrangement of the drain outlet is well known to those skilled in the art and will not be described herein.
In order to facilitate control, a valve is arranged between the wastewater storage tank and the first sewage lifting pump; a valve is arranged on the first flow guide pipe; a plug and/or a valve are/is arranged on the sewage outlet; and a valve is arranged between the condensed water chamber and the condensed water lifting pump.
As a preferred embodiment, with reference to fig. 2, inside the vaporization chamber there are provided a first support 19, a second support 20, a third support 21 and a fourth support 22; the fourth support is horizontally arranged close to the spraying device, and the edge position of the fourth support is spaced from the inner wall of the vaporizing chamber; the second support is positioned above the fourth support, the edge position of the second support is connected with the inner wall of the vaporization chamber, the middle position of the second support forms a hollow structure, the third support is vertically arranged, one end of the third support is connected with the second support, and the other end of the third support is connected with the fourth support; the first support is positioned above the second support, and the edge position of the first support is connected with the inner wall of the vaporization chamber; and water baffles are uniformly arranged on the first support, the second support, the third support and the fourth support. This structure, to the water formation multilayer multi-angle that spouts the splash, the manger plate is effectual, and because the baffle that baffle and third support on the fourth support formed hollow structure, does not have the overlap with the baffle on the first support for steam can upwards move in the bottom and the both sides homoenergetic that the fourth supported, when reaching the purpose of manger plate, the efficiency that steam shifted is high. Baffle on the fourth supports and the baffle on the first support can also misplace the setting or to the not equidirectional slope setting, especially slope setting, can increase the space of passing through of steam, and the baffle on the fourth support has the ascending water droplet of slope to block by the baffle on the first support after the process, and the manger plate effect can not influenced to the water droplet more does benefit to the water droplet whereabouts that blocks after the baffle of slope blocks the back along baffle whereabouts gathering at the action of gravity.
The method is based on the existing desulfurization wastewater zero-discharge method, a refrigerant is used for providing a heat source (sensible heat and latent heat of vaporization) required by water evaporation in a vaporization chamber, latent heat required to be released by condensation of carried water vapor and supercooled sensible heat are absorbed in a water condensation chamber, and the low-temperature low-pressure environment of the vaporization chamber is matched, so that the wastewater is boiled and vaporized at a low temperature, the energy efficiency ratio of the whole process is high, an external heat source heating step is not required, and the process flow is simple.
Example 3, example 3 is a modification of example 1, and it is different from example 1 in that the first reactive precipitation system has a second-stage precipitation tank and a second-stage reaction tank, specifically, referring to fig. 3, the present invention provides a system for zero emission of desulfurization waste water with low cost and easy operation, referring to fig. 3, comprising a first reactive precipitation system, a second reactive precipitation system and a waste water concentration system, wherein the first reactive precipitation system comprises a first-stage reaction tank 101 and a first-stage precipitation tank 102, which are sequentially arranged, the second reactive precipitation system comprises a deep reaction tank 105, a deep precipitation tank 106 and a multimedia filter 107, which are sequentially arranged, the waste water concentration system comprises a vaporization chamber 1, a water condensation chamber 2 and a communicating pipe 3, one end of the communicating pipe is connected with the top of the vaporization chamber, the other end is connected with the top of the water condensation chamber, a condensing pipe 4 is arranged in the vaporization chamber, an evaporation pipe 5 is arranged in the water condensation chamber, one end, with a higher position, of a condensation pipe is connected with one end, with a higher position, of the evaporation pipe through a compressor 6, the other end of the condensation pipe is connected with a liquid accumulator 7, and one end, which is not connected with the condensation pipe, of the liquid accumulator is connected with the other end of the evaporation pipe through a throttle valve 8; a first guide pipe 9 is arranged at the bottom end of the vaporizing chamber, one end of the first guide pipe, which is not connected with the vaporizing chamber, is connected with a wastewater storage tank 10, the wastewater storage tank is connected with a first sewage lifting pump 11, a spraying device 12 is arranged in the vaporizing chamber above the condenser pipe, the first sewage lifting pump is connected with the spraying device through a water supply pipe 13, and a water baffle 14 is arranged above the spraying device; the top of the condensed water chamber is connected with a vacuum pump 15, and the bottom of the condensed water chamber is connected with a condensed water lifting pump 16; be provided with on the one-level sedimentation tank and be used for introducing the second honeycomb duct 91 of waste water storage tank with the waste water of one-level sedimentation tank, waste water storage tank still is connected with second sewage elevator pump 111, second sewage elevator pump with degree of depth reaction tank 105 is connected. The scheme principle of this embodiment is the same, can reach the energy efficiency height of example 1 equally and the effectual effect of whole operation of equipment, has just lacked one step of technique that removes heavy metal ion, certainly, in order to satisfy higher requirement that removes heavy metal ion, can also first reaction sedimentation system can also include multistage reaction tank and multistage sedimentation tank, and this is that technical personnel in the field are in the utility model discloses a very easy implementation on the basis all include the utility model discloses a within the protection scope.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. 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.
Claims (7)
1. A low-cost and easy-operation desulfurization wastewater zero-discharge system comprises a first reaction sedimentation system, a second reaction sedimentation system and a wastewater concentration system, wherein the first reaction sedimentation system comprises a first-stage reaction tank (101), a first-stage sedimentation tank (102), a second-stage reaction tank (103) and a second-stage sedimentation tank (104) which are sequentially arranged, the second reaction sedimentation system comprises a deep reaction tank (105), a deep sedimentation tank (106) and a multi-media filter (107) which are sequentially arranged, and the system is characterized in that,
the waste water concentration system comprises a vaporization chamber (1), a water condensation chamber (2) and a communicating pipe (3), wherein one end of the communicating pipe is connected with the top of the vaporization chamber, the other end of the communicating pipe is connected with the top of the water condensation chamber, a condensing pipe (4) is arranged in the vaporization chamber, an evaporating pipe (5) is arranged in the water condensation chamber, one end, with the higher position, of the condensing pipe is connected with one end, with the higher position, of the evaporating pipe through a compressor (6), the other end of the condensing pipe is connected with a liquid storage device (7), and one end, which is not connected with the condensing pipe, of the liquid storage device is connected with the other end of the evaporating pipe through;
a first guide pipe (9) is arranged at the bottom end of the vaporization chamber, one end, which is not connected with the vaporization chamber, of the first guide pipe is connected with a wastewater storage tank (10), the wastewater storage tank is connected with a first sewage lifting pump (11), a spraying device (12) is arranged above the condensation pipe in the vaporization chamber, the first sewage lifting pump is connected with the spraying device through a water supply pipe (13), and a water baffle plate (14) is arranged above the spraying device;
the top of the condensed water chamber is connected with a vacuum pump (15), and the bottom of the condensed water chamber is connected with a condensed water lifting pump (16);
and a second guide pipe (91) for introducing the wastewater of the second-stage sedimentation tank into the wastewater storage tank is arranged on the second-stage sedimentation tank, the wastewater storage tank is further connected with a second sewage lifting pump (111), and the second sewage lifting pump is connected with the deep reaction tank (105).
2. The system for low cost and easy operation with zero emission of wastewater from desulfurization according to claim 1, wherein said multi-media filter is connected with a filtered water lift pump (108) connected with a sodium hypochlorite generator (109);
the first-stage sedimentation tank and/or the second-stage sedimentation tank are provided with a filter press (110).
3. A low cost, easy to operate system with zero emission of wastewater from desulfurization according to claim 1, characterized in that the bottom of the vaporization chamber is equipped with an electric heater (17).
4. A low cost, easy to operate system with zero emission of desulphurized waste water according to claim 1, wherein a first support (19), a second support (20), a third support (21) and a fourth support (22) are provided inside the vaporisation chamber;
the fourth support is horizontally arranged close to the spraying device, and the edge position of the fourth support is spaced from the inner wall of the vaporizing chamber;
the second support is positioned above the fourth support, the edge position of the second support is connected with the inner wall of the vaporization chamber, and the middle position of the second support forms a hollow structure;
the third support is vertically arranged, one end of the third support is connected with the second support, and the other end of the third support is connected with the fourth support;
the first support is positioned above the second support, and the edge position of the first support is connected with the inner wall of the vaporization chamber;
and water baffles are uniformly arranged on the first support, the second support, the third support and the fourth support.
5. The low-cost and easy-to-operate desulfurization wastewater zero-emission system according to claim 1, characterized in that the spraying device is a spray head;
the bottom ends of the vaporization chamber and the water condensation chamber are provided with sewage outlets (18);
and the evaporation pipe and the condensation pipe are filled with refrigerant.
6. The low-cost and easy-to-operate desulfurization waste water zero-discharge system according to claim 5, characterized in that a valve is arranged between the waste water storage tank and the first sewage lift pump;
a valve is arranged on the first flow guide pipe;
a plug and/or a valve are/is arranged on the sewage outlet;
and a valve is arranged between the condensed water chamber and the condensed water lifting pump.
7. A low-cost and easy-operation desulfurization wastewater zero-discharge system comprises a first reaction precipitation system, a second reaction precipitation system and a wastewater concentration system, wherein the first reaction precipitation system comprises a first-stage reaction tank (101) and a first-stage precipitation tank (102) which are sequentially arranged, the second reaction precipitation system comprises a deep reaction tank (105), a deep precipitation tank (106) and a multi-medium filter (107) which are sequentially arranged, and the system is characterized in that,
the waste water concentration system comprises a vaporization chamber (1), a water condensation chamber (2) and a communicating pipe (3), wherein one end of the communicating pipe is connected with the top of the vaporization chamber, the other end of the communicating pipe is connected with the top of the water condensation chamber, a condensing pipe (4) is arranged in the vaporization chamber, an evaporating pipe (5) is arranged in the water condensation chamber, one end, with the higher position, of the condensing pipe is connected with one end, with the higher position, of the evaporating pipe through a compressor (6), the other end of the condensing pipe is connected with a liquid storage device (7), and one end, which is not connected with the condensing pipe, of the liquid storage device is connected with the other end of the evaporating pipe through;
a first guide pipe (9) is arranged at the bottom end of the vaporization chamber, one end, which is not connected with the vaporization chamber, of the first guide pipe is connected with a wastewater storage tank (10), the wastewater storage tank is connected with a first sewage lifting pump (11), a spraying device (12) is arranged above the condensation pipe in the vaporization chamber, the first sewage lifting pump is connected with the spraying device through a water supply pipe (13), and a water baffle plate (14) is arranged above the spraying device;
the top of the condensed water chamber is connected with a vacuum pump (15), and the bottom of the condensed water chamber is connected with a condensed water lifting pump (16);
be provided with on the one-level sedimentation tank and be used for introducing waste water storage tank's second honeycomb duct (91) with the waste water of one-level sedimentation tank, waste water storage tank still is connected with second sewage elevator pump (111), second sewage elevator pump with degree of depth reaction pond (105) are connected.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252990A (en) * | 2020-03-23 | 2020-06-09 | 导洁(北京)环境科技有限公司 | Low-cost and easy-to-operate desulfurization wastewater zero-discharge method |
| CN112979020A (en) * | 2021-02-24 | 2021-06-18 | 安徽同方工程咨询有限公司 | Hydraulic engineering sludge wastewater treatment device and process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252990A (en) * | 2020-03-23 | 2020-06-09 | 导洁(北京)环境科技有限公司 | Low-cost and easy-to-operate desulfurization wastewater zero-discharge method |
| CN112979020A (en) * | 2021-02-24 | 2021-06-18 | 安徽同方工程咨询有限公司 | Hydraulic engineering sludge wastewater treatment device and process |
| CN112979020B (en) * | 2021-02-24 | 2022-10-28 | 安徽同方工程咨询有限公司 | Hydraulic engineering sludge wastewater treatment device and process |
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