CN217173502U - Cyanide waste water ammonia nitrogen desorption system - Google Patents
Cyanide waste water ammonia nitrogen desorption system Download PDFInfo
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- CN217173502U CN217173502U CN202220576846.XU CN202220576846U CN217173502U CN 217173502 U CN217173502 U CN 217173502U CN 202220576846 U CN202220576846 U CN 202220576846U CN 217173502 U CN217173502 U CN 217173502U
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Abstract
The utility model discloses an ammonia nitrogen removal system for cyanide production wastewater, which relates to the technical field of ammonia nitrogen removal, wherein a first atomizing nozzle is arranged in a first-stage deamination tower, and the first-stage deamination tower is provided with a first waste gas inlet, a first waste gas outlet and a first waste water outlet; a second atomizing nozzle is arranged in the second-stage deamination tower, and a second waste gas inlet, a second waste gas outlet and a second waste water outlet are arranged on the second-stage deamination tower; one end of the first pipeline is connected with the first wastewater outlet, and the other end of the first pipeline is connected with the water inlet of the second atomizing nozzle; and a third waste gas inlet and a third waste gas outlet are arranged on the pickling tower, one end of a second pipeline is connected with the first waste gas outlet, and the other end of the second pipeline is connected with the third waste gas inlet. The beneficial effects of the utility model reside in that: the utility model discloses need not to set up air-blower and packing layer, utilize the technology waste gas in the cyanide production, ammonia nitrogen desorption efficiency is to 96% ~ 98%.
Description
Technical Field
The utility model relates to an ammonia nitrogen desorption technical field, concretely relates to cyanide waste water ammonia nitrogen desorption system.
Background
The main pollution factors in the cyanide production wastewater are cyanogen and ammonia nitrogen, for example, the cyanide-containing wastewater produced by solid sodium cyanide mainly comes from secondary steam condensate water of an evaporator in an evaporation process, steam condensate water of a steam jet pump and the like, and after the cyanide-containing wastewater is collected, cyanogen is broken through heating, and cyanogen in the wastewater is also completely decomposed into ammonia; the total content of ammonia in the industrial production wastewater of cyanide is low, ammonia in the industrial production wastewater can be removed by adopting a stripping method, but the ammonia nitrogen removal efficiency of the conventional stripping method is only 60-70%.
The patent with the publication number of CN205442695U discloses an ammonia nitrogen stripping tower, including the stripping tower body, the stripping tower body divide into blast area, spraying area and exhaust area by supreme down in proper order, the blast area is including setting up tuyere and the delivery port in stripping tower body lower part, the blast opening is linked together with the air-blower, and the spraying area is including setting gradually first grid layer, liquid distributor, first packing layer, air current balancing layer, second packing layer and the second grid layer at stripping tower body middle part from top to bottom to carry out the desorption to the ammonia nitrogen, but current ammonia nitrogen removal system need set up air-blower and packing layer, and the packing layer is in the stripping tower easy emergence jam problem of long-time use, and inconvenient clearance, influence the stripping effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the existing ammonia nitrogen removal system needs to be provided with an air blower and a packing layer, the packing layer is easy to block in a stripping tower after being used for a long time, and the stripping tower is inconvenient to clean, influences the stripping effect, and needs to provide the ammonia nitrogen removal system for cyanide production wastewater.
The utility model discloses a following technical means realizes solving above-mentioned problem:
the utility model provides an ammonia nitrogen removal system for cyanide production wastewater, which comprises a primary deamination tower, a secondary deamination tower, an acid washing tower, a first circulating pump, a first pipeline and a second pipeline;
a first atomizing nozzle is arranged in the primary deamination tower, and a first waste gas inlet, a first waste gas outlet and a first wastewater outlet are arranged on the primary deamination tower; the first waste gas inlet is positioned below the first atomizing nozzle, and the first waste gas outlet is positioned above the first atomizing nozzle;
a second atomizing nozzle is arranged in the secondary deamination tower, and a second waste gas inlet, a second waste gas outlet and a second waste water outlet are arranged on the secondary deamination tower; the second waste gas inlet is positioned below the second atomizing nozzle, and the second waste gas outlet is positioned above the second atomizing nozzle; one end of the first pipeline is connected with the first wastewater outlet, the other end of the first pipeline is connected with the water inlet of the second atomizing nozzle, and the first pipeline is provided with a first circulating pump;
and a third waste gas inlet and a third waste gas outlet are formed in the pickling tower, one end of the second pipeline is connected with the first waste gas outlet, and the other end of the second pipeline is connected with the third waste gas inlet.
The working principle is as follows: industrial waste gas containing cyanide radicals in the cyanide production process is introduced from the first waste gas inlet, cyanide industrial waste water which is heated, decomposed, broken in cyanide and adjusted to pH value of 11-12 is introduced from the first waste water inlet, ammonia nitrogen in the waste water exists in the form of ammonia at the moment, the ammonia-containing waste water is atomized into particles by the first atomizing nozzle from top to bottom, the particles are exchanged with process waste gas generated in the cyanide production from bottom to top, the ammonia is transferred from liquid phase to gas phase, the ammonia enters the acid washing tower from the third waste gas inlet through the second pipeline, concentrated sulfuric acid in the acid washing tower is recovered, and the waste gas after the ammonia removal through the acid washing is discharged from the third waste gas outlet.
The wastewater without most ammonia enters the water inlet of the second atomizing nozzle from the first circulating pump through the first pipeline, the industrial waste gas containing cyanide generated in the production process of cyanide is introduced from the second waste gas inlet, the wastewater is atomized into particles by the second atomizing nozzle and exchanges with the cyanide-containing waste gas from bottom to top, the ammonia in the wastewater further migrates from the liquid phase to the gas phase, the content of ammonia nitrogen removed for the second time is lower, the ammonia nitrogen is discharged from the second waste gas outlet along with the waste gas, and the wastewater without ammonia nitrogen is discharged from the second waste water outlet.
Has the advantages that: the utility model provides a cyanide waste water ammonia nitrogen desorption system need not to set up air-blower and packing layer, utilizes the technology waste gas in the cyanide production, and once deamination efficiency reaches 80 ~ 85%, and twice ammonia nitrogen desorption efficiency reaches 96% ~ 98%; and simultaneously, the alkaline deamination wastewater is used for washing the cyanide process waste gas to remove the pollution factor cyanide in the process waste gas.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises a chimney, a third pipeline and a fourth pipeline, wherein one end of the third pipeline is connected with a third waste gas outlet, the other end of the third pipeline is connected with the chimney, one end of the fourth pipeline is connected with a second waste gas outlet, and the other end of the fourth pipeline is connected with the chimney.
Has the advantages that: and ammonia in the waste gas is discharged into the chimney from the third waste gas outlet after being washed for high-altitude discharge, the ammonia nitrogen content in the secondary removal is lower, and the ammonia nitrogen is discharged into the chimney from the second waste gas outlet for high-altitude discharge.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises a heat exchanger, wherein one end of the heat exchanger is connected with a water outlet of the first circulating pump, and the other end of the heat exchanger is connected with one end of the first pipeline.
Preferably, the heat exchanger is a spiral plate heat exchanger.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises a fifth pipeline, a sixth pipeline and a seventh pipeline, the first atomizing nozzle comprises a first atomizing nozzle A and a first atomizing nozzle B, and the center of the first atomizing nozzle A and the center of the first atomizing nozzle B are located on the same horizontal plane; the water inlet of the first atomizing nozzle A is connected with one end of a fifth pipeline, the water inlet of the first atomizing nozzle B is connected with one end of a sixth pipeline, the other end of the fifth pipeline penetrates through the side wall of the primary deamination tower to be connected with the seventh pipeline, and the other end of the sixth pipeline penetrates through the side wall of the primary deamination tower to be connected with the seventh pipeline.
Preferably, a first pressure sensor and a first electrically controlled switch ball valve are arranged on each of the first atomizing nozzle A and the first atomizing nozzle B.
Has the advantages that: two groups of first atomizing nozzles are arranged, and when one group of first atomizing nozzles A or one group of first atomizing nozzles B are blocked, the dredging nozzle assembly can be cleaned in batches under the condition that the system does not stop so as to keep the continuous operation of the primary deamination tower.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises an eighth pipeline and a ninth pipeline, the second atomizing nozzle comprises a second atomizing nozzle A and a second atomizing nozzle B, and the center of the second atomizing nozzle A and the center of the second atomizing nozzle B are located on the same horizontal plane; the water inlet of second atomizing nozzle A is connected with the one end of eighth pipeline, the water inlet of second atomizing nozzle B is connected with the one end of ninth pipeline, the other end of eighth pipeline passes second grade deamination tower lateral wall and first pipe connection.
Preferably, a second pressure sensor and a second electrically-controlled switch ball valve are arranged on the second atomizing nozzle A and the second atomizing nozzle B respectively.
Has the advantages that: two groups of second atomizing nozzles are arranged, and when one group of the second atomizing nozzles A or the second atomizing nozzles B are blocked, the dredging nozzle assembly can be cleaned in batches under the condition that the system does not stop so as to keep the continuous operation of the secondary deamination tower.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises a second circulating pump and a tenth pipeline, wherein one end of the tenth pipeline is connected with the bottom end of the pickling tower, the other end of the tenth pipeline is connected with the top end of the pickling tower, and the second circulating pump is located on the tenth pipeline.
Preferably, the ammonia nitrogen removal system for the cyanide production wastewater further comprises a wastewater tank, and the second wastewater outlet is connected with the wastewater tank.
Has the advantages that: after the wastewater after the secondary deamination exchanges with the waste gas, trace cyanogen in the waste gas is washed, and the wastewater is discharged into a wastewater pool for treatment.
Preferably, the ammonia nitrogen removal system for cyanide production wastewater further comprises a heating decomposition tank, the heating decomposition tank is connected with the second wastewater outlet through an eleventh pipeline, and a third circulating pump is installed on the eleventh pipeline.
Has the advantages that: and introducing the wastewater into the wastewater in the heating decomposition tank to heat and break cyanogen.
The utility model discloses a theory of operation: industrial waste gas containing cyanide radicals in the cyanide production process is introduced from the first waste gas inlet, cyanide industrial waste water which is heated, decomposed, broken in cyanide and adjusted to pH value of 11-12 is introduced from the first waste water inlet, ammonia nitrogen in the waste water exists in the form of ammonia at the moment, the ammonia-containing waste water is atomized into particles by the first atomizing nozzle from top to bottom, the particles and process waste gas in the cyanide production from bottom to top are subjected to countercurrent exchange, ammonia is transferred from a liquid phase to a gas phase and enters the acid washing tower from the third waste gas inlet through the second pipeline for absorption, and after the ammonia in the waste gas is washed by the waste water, the waste gas is discharged from the third waste gas outlet.
The wastewater without most ammonia enters the water inlet of the second atomizing nozzle through the first circulating pump and the first pipeline, industrial waste gas containing cyanide in the cyanide production process is introduced from the second waste gas inlet, the wastewater is atomized into particles by the second atomizing nozzle and exchanges with cyanide-containing waste gas from bottom to top, ammonia in the wastewater further migrates from a liquid phase to a gas phase, the ammonia nitrogen content of secondary removal is low, the ammonia nitrogen is discharged from the second waste gas outlet together with the waste gas, and the wastewater without the ammonia nitrogen is discharged from the second waste water outlet.
The utility model has the advantages that: the utility model provides a cyanide waste water ammonia nitrogen desorption system need not to set up air-blower and packing layer, and the technology waste gas in the make full use of cyanide production, and once deamination efficiency reaches 80 ~ 85%, and twice ammonia nitrogen desorption efficiency reaches 96% ~ 98%; and meanwhile, the cyanide process waste gas is washed by using the alkaline deamination waste water, so that a pollution factor cyanide in the process waste gas is removed, and the blockage of the first atomizing nozzle and the second atomizing nozzle can be reduced.
The utility model provides a deamination tower replaces traditional packed tower, can reduce the quantity of equipment, practices thrift a large amount of equipment funds and place.
The utility model provides a cyanide waste water ammonia nitrogen desorption system can wash mediation nozzle assembly in batches under the condition that the device does not stop to keep the continuous operation of ammonia nitrogen desorption system.
Drawings
FIG. 1 is a schematic structural diagram of an ammonia nitrogen removal system for cyanide production wastewater in example 1 of the present invention;
FIG. 2 is a schematic structural diagram of an ammonia nitrogen removal system for cyanide production wastewater in embodiment 2 of the present invention;
in the figure: a primary deamination tower 111; a first atomizing nozzle 1111; a first exhaust inlet 1112; a first exhaust outlet 1113; a first waste water outlet 1114; a secondary deamination tower 112; a second atomizing nozzle 1121; a second exhaust inlet 1122; a second exhaust outlet 1123; a second waste water outlet 1124; an acid wash tower 113; a third exhaust gas inlet 1131; a third waste gas outlet 1132; a liquid outlet 1134; an inlet port 1135; the first circulation pump 114; a first duct 115; a second conduit 116; a chimney 117; a first inlet 1171; a third conduit 118; a fourth pipe 119; a heat exchanger 120; a fifth pipe 121; a seventh pipe 122; an eighth conduit 123; a tenth conduit 124; a second circulation pump 125; a heating decomposition tank 126; an eleventh conduit 1264; a third circulation pump 1265.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described below in combination, clearly and completely, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Example 1
A cyanide production wastewater ammonia nitrogen removal system is shown in figure 1 and comprises a primary deamination tower 111, a secondary deamination tower 112, an acid washing tower 113, a first circulating pump 114, a first pipeline 115 and a second pipeline 116.
As shown in fig. 1, a first atomizing nozzle 1111 is installed in the primary deamination tower 111, and the first atomizing nozzle 1111 is installed in a conventional manner. A first waste gas inlet 1112, a first waste gas outlet 1113 and a first waste water outlet 1114 are formed in the side wall of the primary deamination tower 111; the first exhaust inlet 1112 is located below the first atomizing nozzle 1111 and the first exhaust outlet 1113 is located above the first atomizing nozzle 1111.
A second atomizing nozzle 1121 is installed in the secondary deamination tower 112, the installation mode of the second atomizing nozzle 1121 is the prior art, and a second waste gas inlet 1122, a second waste gas outlet 1123 and a second waste water outlet 1124 are formed in the side wall of the secondary deamination tower 112; the second waste gas inlet 1122 is located below the second atomizing nozzle 1121, and the second waste gas outlet 1123 is located above the second atomizing nozzle 1121.
One end of the first pipeline 115 is fixedly connected with the first wastewater outlet 1114, the other end of the first pipeline 115 penetrates through the side wall of the secondary deamination tower 112, the other end of the first pipeline 115 is fixedly connected with the water inlet of the second atomizing nozzle 1121, the first pipeline 115 is provided with the first circulating pump 114, and the fixed connection mode of the first pipeline 115 and the installation mode of the first circulating pump 114 in this embodiment are the prior art.
The third waste gas inlet 1131 and the third waste gas outlet 1132 are formed in the side wall of the pickling tower 113, one end of the second pipeline 116 is fixedly connected with the first waste gas outlet 1113, the other end of the second pipeline 116 is fixedly connected with the third waste gas inlet 1131, and the fixed mounting mode of the second pipeline 116 and the pickling tower 113 in this embodiment are both in the prior art. The acid washing tower 113 contains concentrated sulfuric acid, which washes and recovers ammonia in the exhaust gas to generate an ammonium sulfate solution.
In order to facilitate the discharge of the exhaust gas, the present embodiment further includes a chimney 117, a third pipeline 118, and a fourth pipeline 119, wherein a first gas inlet 1171 is formed in a side wall of the chimney 117, one end of the third pipeline 118 is fixedly connected to a third exhaust gas outlet 1132, the other end of the third pipeline 118 is fixedly connected to the first gas inlet 1171, one end of the fourth pipeline 119 is fixedly connected to a second exhaust gas outlet 1123, and the other end of the fourth pipeline 119 is fixedly connected to a side wall of the third pipeline 118. In this embodiment, the height of the chimney 117 is set according to actual requirements, and the fixing manner of the third duct 118 and the fourth duct 119 is the prior art.
For heating the wastewater after the first-stage deamination, the present embodiment further includes a heat exchanger 120, the heat exchanger 120 is specifically a spiral plate heat exchanger 120, the spiral plate heat exchanger 120 is prior art, one end of the heat exchanger 120 is fixedly connected with a water outlet of the first circulation pump 114 through a pipeline, and the other end of the heat exchanger 120 is connected with the second atomizing nozzle 1121 through a pipeline.
In order to clean the dredging nozzle assembly in batches without stopping the system, the embodiment further comprises a fifth pipeline 121, a sixth pipeline (not shown), a seventh pipeline 122, an eighth pipeline 123 and a ninth pipeline (not shown), wherein the seventh pipeline 122 is positioned outside the primary deamination tower 111.
The first atomizing nozzles 1111 include a plurality of first atomizing nozzles a (not shown) and a plurality of first atomizing nozzles B (not shown), the number of the first atomizing nozzles a and the number of the first atomizing nozzles B are all five, the plurality of first atomizing nozzles a are arranged in series, and the plurality of first atomizing nozzles B are arranged in series.
The center of the first atomizing nozzle A and the center of the first atomizing nozzle B are positioned on the same horizontal plane; a water inlet 1261 of the first atomizing nozzle a is fixedly connected with one end of the fifth pipeline 121, a water inlet 1261 of the first atomizing nozzle B is fixedly connected with one end of the sixth pipeline, the other end of the fifth pipeline 121 penetrates through the side wall of the primary deamination tower 111 and is fixedly connected with the seventh pipeline 122, and the other end of the sixth pipeline penetrates through the side wall of the primary deamination tower 111 and is fixedly connected with the seventh pipeline 122.
The second atomizing nozzles 1121 include a second atomizing nozzle a (not shown) and a second atomizing nozzle B (not shown), the number of the second atomizing nozzles a and the number of the second atomizing nozzles B are plural, the plural second atomizing nozzles a are arranged in series, the plural second atomizing nozzles B are arranged in series, the number of the first atomizing nozzles 1111 and the number of the second atomizing nozzles 1121 are adjusted according to the total amount of the wastewater, under the condition that the pipeline is unblocked, the flow rate of the wastewater is constant under a certain pressure, and the flow rate is not lower than 2m under the pressure of 0.3MPa 3 H is used as the reference value. In this embodiment, the number of the second atomizing nozzles a and the number of the second atomizing nozzles B are all five.
The center of the second atomizing nozzle A and the center of the second atomizing nozzle B are positioned on the same horizontal plane; the water inlet of second atomizing nozzle A and the one end fixed connection of eighth pipeline 123, the water inlet 1261 of second atomizing nozzle B and the one end fixed connection of ninth pipeline, the other end of eighth pipeline 123 passes second grade deamination tower 112 lateral wall and first pipeline 115 fixed connection.
A first pressure sensor (not shown) and a first electric control switch ball valve (not shown) are arranged on the first atomizing nozzle A and the first atomizing nozzle B, the first pressure sensor is electrically connected with the first electric control switch ball valve, a second pressure sensor (not shown) and a second electric control switch ball valve (not shown) are arranged on the second atomizing nozzle A and the second atomizing nozzle B, the second pressure sensor is electrically connected with the second electric control switch ball valve, and the first pressure sensor, the first electric control switch ball valve, the second pressure sensor, the second electric control switch ball valve and the installation mode are all in the prior art. When the first pressure sensor and the second pressure sensor detect that the pressure of the first atomizing nozzle and the pressure of the second atomizing nozzle rise to 0.4MPa, the nozzles are indicated to be seriously blocked, and the sensors transmit pressure signals to the first electric control switch ball valve or the second electric control switch ball valve to close the corresponding nozzles.
For carrying out cyclic utilization to the pickle, this embodiment still includes second circulating pump 125 and tenth pipeline 124, and liquid outlet 1134 is seted up to 113 bottoms of pickling tower, and inlet 1135 is seted up on 113 tops of pickling tower, the one end and the liquid outlet fixed connection of tenth pipeline 124, the other end and the inlet fixed connection of tenth pipeline 124, installation second circulating pump 125 on the tenth pipeline 124, the mounting means of second circulating pump 125 is prior art.
The working principle of the embodiment is as follows: introducing industrial waste gas containing cyanide during cyanide production from a first waste gas inlet 1112, introducing cyanide industrial wastewater which is heated, decomposed to break cyanide and adjusted to pH value 11-12 from a seventh pipeline 122, introducing the wastewater into a first atomizing nozzle A and a first atomizing nozzle B through a fifth pipeline 121 and a sixth pipeline, wherein ammonia nitrogen in the wastewater exists in the form of ammonia, the ammonia-containing wastewater is atomized from top to bottom through the nozzles, atomized into particles by the first atomizing nozzle 1111 and subjected to countercurrent exchange with process waste gas in the cyanide production from bottom to top, and the amount of the wastewater is adjusted (m is 3 H) and amount of exhaust gas (m) 3 The volume ratio of the ammonia to the ammonia is not less than 1:3000, ammonia is transferred from a liquid phase to a gas phase, waste gas enters the acid washing tower 113 through the second pipeline 116 and the third waste gas inlet 1131 to be absorbed, and ammonia in the waste gas is washed and then discharged from the third pipeline 118 to the chimney 117 through the third waste gas outlet 1132.
The wastewater from which a part of ammonia is removed is heated by the first circulating pump 114 through the heat exchanger 120, and then enters the second atomizing nozzle a and the second atomizing nozzle B through the eighth pipeline 123 and the ninth pipeline through the first pipeline 115, industrial waste gas containing cyanide during cyanide production is introduced from the second waste gas inlet 1122, the wastewater is atomized into particles by the second atomizing nozzle 1121 and exchanges with cyanide-containing waste gas from bottom to top, ammonia in the wastewater further migrates from a liquid phase to a gas phase, the content of ammonia nitrogen removed for the second time is low, the ammonia nitrogen removed for the second time is discharged from the second waste gas outlet 1123 to the chimney 117 through the fourth pipeline 119, and the wastewater from which ammonia nitrogen is removed is discharged from the second waste water outlet 1124.
The beneficial effects of the embodiment are as follows: an ammonia nitrogen removal system for cyanide production wastewater does not need to be provided with a blower and a packing layer, and by utilizing process waste gas in cyanide production, the primary deamination efficiency reaches 80-85%, and the secondary ammonia nitrogen removal efficiency reaches 96-98%; meanwhile, the cyanide process waste gas is washed by the alkaline deamination waste water, pollution factors cyanide in the process waste gas are removed, and the blockage of the first atomizing nozzle 1111 and the second atomizing nozzle 1121 can be reduced.
The ammonia nitrogen removal system for cyanide production wastewater in the embodiment can clean and dredge the nozzle assembly in batches under the condition that the device does not stop so as to keep the continuous operation of the ammonia nitrogen removal system.
Example 2
This embodiment is different from embodiment 1 in that: as shown in fig. 2, the system further includes a thermal decomposition tank 126, the thermal decomposition tank 126 is fixedly connected to the second waste water outlet 1124 through an eleventh pipe 1264, and a third circulation pump 1265 is installed on the eleventh pipe 1264, which is a conventional thermal decomposition tank in this embodiment.
The beneficial effects of this embodiment: the wastewater is introduced into a thermal decomposition tank 126, and the wastewater is heated to break cyanogen.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a cyanide waste water ammonia nitrogen desorption system which characterized in that: the device comprises a primary deamination tower, a secondary deamination tower, an acid washing tower, a first circulating pump, a first pipeline and a second pipeline;
a first atomizing nozzle is arranged in the first-stage deamination tower, and a first waste gas inlet, a first waste gas outlet and a first waste water outlet are arranged on the first-stage deamination tower; the first waste gas inlet is positioned below the first atomizing nozzle, and the first waste gas outlet is positioned above the first atomizing nozzle;
a second atomizing nozzle is arranged in the secondary deamination tower, and a second waste gas inlet, a second waste gas outlet and a second waste water outlet are arranged on the secondary deamination tower; the second waste gas inlet is positioned below the second atomizing nozzle, and the second waste gas outlet is positioned above the second atomizing nozzle; one end of the first pipeline is connected with the first wastewater outlet, the other end of the first pipeline is connected with the water inlet of the second atomizing nozzle, and the first pipeline is provided with a first circulating pump;
and a third waste gas inlet and a third waste gas outlet are arranged on the acid washing tower, one end of the second pipeline is connected with the first waste gas outlet, and the other end of the second pipeline is connected with the third waste gas inlet.
2. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises a chimney, a third pipeline and a fourth pipeline, wherein one end of the third pipeline is connected with a third waste gas outlet, the other end of the third pipeline is connected with the chimney, one end of the fourth pipeline is connected with a second waste gas outlet, and the other end of the fourth pipeline is connected with the chimney.
3. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises a heat exchanger, one end of the heat exchanger is connected with a water outlet of the first circulating pump, and the other end of the heat exchanger is connected with one end of the first pipeline.
4. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 3, characterized in that: the heat exchanger is a spiral plate heat exchanger.
5. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises a fifth pipeline, a sixth pipeline and a seventh pipeline, the first atomizing nozzle comprises a first atomizing nozzle A and a first atomizing nozzle B, and the center of the first atomizing nozzle A and the center of the first atomizing nozzle B are located on the same horizontal plane; the water inlet of the first atomizing nozzle A is connected with one end of a fifth pipeline, the water inlet of the first atomizing nozzle B is connected with one end of a sixth pipeline, the other end of the fifth pipeline penetrates through the side wall of the primary deamination tower to be connected with the seventh pipeline, and the other end of the sixth pipeline penetrates through the side wall of the primary deamination tower to be connected with the seventh pipeline.
6. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 5, characterized in that: and the first atomizing nozzle A and the first atomizing nozzle B are both provided with a first pressure sensor and a first electric control switch ball valve.
7. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises an eighth pipeline and a ninth pipeline, the second atomizing nozzle comprises a second atomizing nozzle A and a second atomizing nozzle B, and the center of the second atomizing nozzle A and the center of the second atomizing nozzle B are located on the same horizontal plane; the water inlet of second atomizing nozzle A is connected with the one end of eighth pipeline, the water inlet of second atomizing nozzle B is connected with the one end of ninth pipeline, the other end of eighth pipeline passes second grade deamination tower lateral wall and first pipe connection.
8. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 7, characterized in that: and a second pressure sensor and a second electric control switch ball valve are arranged on the second atomizing nozzle A and the second atomizing nozzle B.
9. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises a second circulating pump and a tenth pipeline, one end of the tenth pipeline is connected with the bottom end of the pickling tower, the other end of the tenth pipeline is connected with the top end of the pickling tower, and the second circulating pump is located on the tenth pipeline.
10. The ammonia nitrogen removal system for cyanide production wastewater as claimed in claim 1, characterized in that: the ammonia nitrogen removal system for the cyanide production wastewater further comprises a wastewater tank, and the second wastewater outlet is connected with the wastewater tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220576846.XU CN217173502U (en) | 2022-03-16 | 2022-03-16 | Cyanide waste water ammonia nitrogen desorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220576846.XU CN217173502U (en) | 2022-03-16 | 2022-03-16 | Cyanide waste water ammonia nitrogen desorption system |
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| CN217173502U true CN217173502U (en) | 2022-08-12 |
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| CN202220576846.XU Active CN217173502U (en) | 2022-03-16 | 2022-03-16 | Cyanide waste water ammonia nitrogen desorption system |
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- 2022-03-16 CN CN202220576846.XU patent/CN217173502U/en active Active
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