CN-224212428-U - High-salt wastewater recycling system for incineration wet method

CN224212428UCN 224212428 UCN224212428 UCN 224212428UCN-224212428-U

Abstract

The utility model relates to the technical field of wastewater reuse, in particular to a high-salt wastewater reuse system by an incineration wet method. The utility model discloses a recycling system for incinerating wet high-salt wastewater, which comprises a wet deacidification tower and a high-salt wastewater treatment tank, wherein a siphon piece which is communicated with the wet deacidification tower and the high-salt wastewater treatment tank is arranged between the wet deacidification tower and the high-salt wastewater treatment tank, and is connected with a filtering piece, so that pretreatment of most suspended matters and partial precipitated salt particles in the high-salt wastewater is realized, the problems of pipeline resistance and rear-end scale formation are solved, the use of a pump body can be effectively reduced by utilizing the siphon piece, the production cost is reduced, the air outlet end of the high-salt wastewater treatment tank is communicated with a buffer tank, the water outlet end of the buffer tank is connected with a flow regulating piece, the water outlet end of the flow regulating piece is connected with a quenching spray tower, and the air inlet end of the quenching spray tower is communicated with the air outlet end of the wet deacidification tower and the buffer tank through a pipeline, thereby the pipeline pressure and the pipeline flow can be regulated, the system load is reduced, and the cooling discharge of high-temperature flue gas is realized.

Inventors

CAI WEIPING
LAN PENG
Zeng Xujin
ZHU LULU
CHEN WEISEN

Assignees

福建兴业东江环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (10)

1. The incineration wet high-salt wastewater recycling system is characterized by comprising a wet deacidification tower and a high-salt wastewater treatment tank, wherein siphoning pieces which are mutually communicated are arranged between the wet deacidification tower and the high-salt wastewater treatment tank, a filtering piece is connected to the siphoning pieces, the air outlet end of the high-salt wastewater treatment tank is communicated with a cache tank, the water outlet end of the cache tank is connected with a flow regulator, the water outlet end of the flow regulator is connected with a quenching spray tower, and the air inlet end of the quenching spray tower is communicated with the air outlet ends of the wet deacidification tower and the cache tank through pipelines.
2. The incineration wet high-salt wastewater recycling system according to claim 1, wherein the siphon piece comprises a siphon pipe, one end of the siphon pipe is communicated with the filter piece, the filter piece comprises a shell, a filter is arranged in the shell, and a plurality of filter holes matched with the filter are formed in the surface of the shell.
3. The incineration wet high-salt wastewater recycling system according to claim 2, wherein the shell comprises an upper shell and a lower shell matched with the upper shell, and the upper shell and the lower shell mutually form a sphere.
4. The incineration wet high-salt wastewater recycling system according to claim 3, wherein the upper shell and the lower shell are detachably connected with each other, a magnetic attraction piece is arranged between the upper shell and the lower shell, and the magnetic attraction piece comprises a magnet and an iron block which are respectively arranged on the upper shell and the lower shell.
5. The incineration wet high-salt wastewater recycling system according to claim 4, further comprising a clamping piece, wherein the clamping piece is a limiting ring, one side of the limiting ring is fixedly connected with the inner wall of the wet deacidification tower, and the siphon pipe penetrates through the limiting ring and is communicated with the upper shell.
6. The incineration wet high-salt wastewater recycling system of claim 1, wherein the flow regulating part comprises a liquid pump communicated with the water outlet end of the high-salt wastewater treatment tank, the output end of the liquid pump is communicated with a spray head and a return pipe communicated with a buffer tank, and the spray head is positioned in the quenching spray tower.
7. The incineration wet high-salt wastewater recycling system of claim 6, wherein the liquid outlet end of the buffer tank is communicated with the liquid inlet end of the liquid pump.
8. The incineration wet high-salt wastewater recycling system according to claim 1, further comprising a salt inhibitor adding part arranged on the high-salt wastewater treatment tank, wherein the salt inhibitor adding part comprises a salt inhibitor storage tank, a discharge pipe is arranged at the discharge end of the salt inhibitor storage tank, and a control valve for controlling the adding amount of the salt inhibitor is arranged on the discharge pipe.
9. The incineration wet high-salt wastewater recycling system of claim 1, further comprising a mixing part arranged in the high-salt wastewater treatment tank, wherein the mixing part comprises a motor arranged on the high-salt wastewater treatment tank, a rotating shaft is arranged at the output end of the motor, a first stirring rod, a second stirring rod, a third stirring rod and a fourth stirring rod are arranged on the rotating shaft, the first stirring rod and the second stirring rod penetrate through the top and the bottom of the rotating shaft, and the third stirring rod and the fourth stirring rod are positioned on the same side of the rotating shaft.
10. The incineration wet high-salt wastewater recycling system of claim 9, wherein the first stirring rod end and the second stirring rod end are connected with first spiral sheets, the second stirring rod, the third stirring rod and the fourth stirring rod are connected with second spiral sheets, and the second spiral sheets are positioned inside the first spiral sheets.

Description

High-salt wastewater recycling system for incineration wet method Technical Field The utility model relates to the technical field of wastewater reuse, in particular to a high-salt wastewater reuse system by an incineration wet method. Background With the rapid development of economy, the amount of hazardous waste (hazardous waste for short) produced increases dramatically. In view of their potential environmental risks and threats to human health, hazardous waste has become one of the major environmental problems currently facing. The incineration can effectively destroy toxic and harmful organic wastes in the hazardous wastes, reduce the volume and the quality of the hazardous wastes, is favorable for the final safe disposal of the hazardous wastes, and is the fastest and most effective technology for realizing the reduction, harmless and recycling treatment of the hazardous wastes. The hazardous waste incineration flue gas purification usually adopts a wet deacidification technology, so that a large amount of high-salt wastewater can be generated in the hazardous waste incineration disposal process. The high-salt wastewater refers to wastewater with the total salt mass fraction of more than or equal to 1 percent, and mainly comprises industrial high-salt wastewater, salt-containing domestic wastewater, other salt-containing wastewater and the like. The high-salt wastewater contains a large amount of soluble inorganic salt, such as Cl -、SO42-、Na+、Ca2+ plasma, and meanwhile, the water also contains a certain amount of organic pollutants, so that the wastewater treatment cost is high. In this regard, patent No. CN215798985U discloses a hazardous waste incineration high-salt wastewater recycling system, under the triple actions of a filter, a conductivity adjusting mechanism and a salt inhibitor adding mechanism, wastewater is hardly deposited and attached on the surface of the tower wall of a quenching spray tower, and salt exists in a powdery or small particle shape, so that the scaling and blocking problems of salt precipitation in the quenching spray tower are effectively avoided, the wastewater treatment cost is saved, the use of fresh water is reduced, but the system has the following problems that 1, the energy consumption is increased when the high-salt wastewater is transferred by utilizing a wastewater lifting pump, 2, the quenching spray tower is connected with a wastewater pump and a metering pump only through pipelines, and the backflow phenomenon of liquid is easy to occur under the action of high-temperature smoke, so that the use of the wastewater pump and the metering pump is affected. Disclosure of utility model The utility model aims to at least solve one of the technical problems in the prior art and provides a high-salt wastewater recycling system by an incineration wet method. The technical scheme includes that the incineration wet high-salt wastewater recycling system comprises a wet deacidification tower and a high-salt wastewater treatment tank, siphoning pieces which are mutually communicated are arranged between the wet deacidification tower and the high-salt wastewater treatment tank, a filtering piece is connected to the siphoning pieces, the air outlet end of the high-salt wastewater treatment tank is communicated with a buffer tank, the water outlet end of the buffer tank is connected with a flow regulating piece, the water outlet end of the flow regulating piece is connected with a quenching spray tower, and the air inlet end of the quenching spray tower is communicated with the air outlet ends of the wet deacidification tower and the buffer tank through pipelines. Further, the siphon piece includes the siphon, siphon one end with the filter piece is linked together, the filter piece includes the casing, the inside filter that is equipped with of casing, the casing surface be equipped with a plurality of with filter assorted filtration pore. Further, the shell comprises an upper shell and a lower shell matched with the upper shell, and the upper shell and the lower shell mutually form a sphere. Further, the upper shell and the lower shell are detachably connected with each other, a magnetic attraction piece is arranged between the upper shell and the lower shell, and the magnetic attraction piece comprises a magnet and an iron block which are respectively arranged on the upper shell and the lower shell. Further, the wet deacidification tower further comprises a clamping piece, wherein the clamping piece is a limiting ring, one side of the limiting ring is fixedly connected with the inner wall of the wet deacidification tower, and the siphon penetrates through the limiting ring and is communicated with the upper shell. Further, the flow regulating part comprises a liquid pump communicated with the water outlet end of the high-salt wastewater treatment tank, a spray head and a return pipe communicated with the buffer tank are communicated with the output end of the liquid pump,