CN214936611U - Multifunctional water treatment system of combined fluidized bed - Google Patents
Multifunctional water treatment system of combined fluidized bed Download PDFInfo
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- CN214936611U CN214936611U CN202120594164.7U CN202120594164U CN214936611U CN 214936611 U CN214936611 U CN 214936611U CN 202120594164 U CN202120594164 U CN 202120594164U CN 214936611 U CN214936611 U CN 214936611U
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Abstract
The utility model discloses a combined fluidized bed multifunctional water treatment system, wherein a first water outlet pipe of a chemical crystallization circulating granulation fluidized bed main body device is communicated with a second water inlet pipe of a solid-liquid separation circulating granulation fluidized bed main body device through a first static mixer; the main body device of the chemical crystallization circulating granulation fluidized bed is connected with a seed crystal feeding unit, a medicament feeding unit and a particle discharging unit; a coagulant adding unit is arranged on the first water outlet pipe; the second water inlet pipe is connected with a micro-sand adding unit; the main body device of the solid-liquid separation circulating granulation fluidized bed is connected with a coagulant aid adding unit and a mud-water separation unit; a second static mixer is arranged on the second water outlet pipe, and a pH adjusting unit is arranged on the second water outlet pipe between the main body device of the solid-liquid separation circulating granulation fluidized bed and the second static mixer. The organic combination of the crystallization granulation fluidized bed and the circulating granulation fluidized bed can well perform synergistic treatment on the turbidity and the hardness, and provides an efficient coping and solving method.
Description
Technical Field
The utility model belongs to the water treatment field relates to the granulation fluidized bed, concretely relates to modular multi-functional water treatment system of fluidized bed.
Background
With the development of industry and the increase of population, water as a life source is seriously polluted, and in order to realize the sustainable development of human society, the problem of water pollution is solved firstly, and the composite pollution in water is increasingly serious. Ca is present in water2+、Mg2+、Fe2+、Mn2+、As3+And F-When the plasma exists in excess in water, the plasma can harm human health and reduce the efficiency of production equipment. In general, water plants need to ensure the water outlet effect through combined processes of medicament softening, aeration, filtration, electrodialysis and the like, so that the problems of large occupied area, complex process, difficult operation and management, increased treatment cost and the like are caused. When the turbidity in water changes greatly and the turbidity is higher or lower, the stability and the effect of the water treatment process can be influenced, the existing water quality purification device can treat single high-turbidity water, various technologies are developed at home and abroad, and the device is applied to actual engineering.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a combined fluidized bed multifunctional water treatment system, which solves the technical problem that the water treatment device in the prior art is unsatisfactory in the face of complex water quality treatment effect.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a combined fluidized bed multifunctional water treatment system comprises a chemical crystallization circulating granulation fluidized bed main body device and a solid-liquid separation circulating granulation fluidized bed main body device; a first water inlet pipe and a first water outlet pipe are arranged on the main body device of the chemical crystallization circulating granulation fluidized bed; a second water inlet pipe and a second water outlet pipe are arranged on the main body device of the solid-liquid separation circulating granulation fluidized bed;
the electromagnetic variable-frequency raw water pump and the first main water inlet valve are sequentially arranged on the first water inlet pipe along the water inlet direction; the first water outlet pipe is communicated with the second water inlet pipe through a first static mixer; the electromagnetic flow meter and the second main water inlet valve are sequentially arranged on the second water inlet pipe along the water inlet direction;
the upper part of the main body device of the chemical crystallization circulating granulation fluidized bed is connected with a crystal seed adding unit, the lower part of the main body device of the chemical crystallization circulating granulation fluidized bed is connected with a medicament adding unit, and the lower part of the main body device of the chemical crystallization circulating granulation fluidized bed is also connected with a particle discharging unit;
a coagulant adding unit is arranged on the first water outlet pipe;
a micro-sand feeding unit is connected on a second water inlet pipe between the electromagnetic flowmeter and a second main water inlet valve;
the lower part of the main body device of the solid-liquid separation circulating granulation fluidized bed is connected with a coagulant aid adding unit, and the bottom of the main body device of the solid-liquid separation circulating granulation fluidized bed is provided with a mud-water separation unit;
and a second water outlet pipe is provided with a second static mixer, and a pH adjusting unit is arranged on the second water outlet pipe between the main body device of the solid-liquid separation circulating granulation fluidized bed and the second static mixer.
The utility model discloses still have following technical characteristic:
the seed crystal feeding unit comprises a seed crystal conveying tank water inlet pump, a seed crystal conveying tank, a particle pump and a seed crystal feeding valve which are sequentially connected, and the seed crystal feeding valve is communicated with the chemical crystallization circulating granulation fluidized bed main body device.
The medicament feeding unit comprises a medicament storage tank, a variable-frequency medicament feeding pump and a medicament feeding control valve which are sequentially connected, and the medicament feeding control valve is communicated with the chemical crystallization circulating granulation fluidized bed main body device.
The particle discharge unit comprises a particle discharge valve and a particle collection storage box which are sequentially connected to the main body device of the chemical crystallization circulating granulation fluidized bed along the particle discharge direction.
The coagulant adding unit comprises a coagulant solution tank, a coagulant control valve and a coagulant adding pump which are sequentially arranged on the first water outlet pipe along the water outlet direction.
The micro-sand adding unit comprises a mortar box, a mortar control valve and a mortar adding pump which are sequentially connected, and the mortar adding pump is communicated with the second water inlet pipe.
The coagulant aid adding unit comprises a coagulant aid solution tank, a coagulant aid control valve and a coagulant aid adding pump which are sequentially connected, and the coagulant aid adding pump is communicated with the main body device of the solid-liquid separation circulating granulation fluidized bed.
The mud-water separation unit comprises a mud-water separator arranged at the bottom of the main body device of the solid-liquid separation circulating granulation fluidized bed, the mud-water separator is connected with one end of a mud discharge pipeline, a mud discharge control valve and a mud discharge pump are sequentially arranged on the mud discharge pipeline, and the other end of the mud discharge pipeline is connected with a sludge dewatering workshop.
The pH adjusting unit comprises an acid liquid storage tank, an acid liquid variable-frequency feeding pump and an acid liquid feeding control valve which are sequentially connected, and the acid liquid feeding control valve is communicated with the second water outlet pipe.
The first water inlet pipe is also provided with a water inlet flowmeter and a water inlet pressure gauge; and a second water outlet pipe in front of the pH adjusting unit is provided with a first pH real-time online detector, and a second water outlet pipe behind the second static mixer is provided with a second pH real-time online detector and an online turbidity detector.
Compared with the prior art, the utility model, following technological effect has:
high suspended matters in water can influence the crystallization and granulation process of calcium and magnesium ions, and high concentration of the calcium and magnesium ions can cause high turbidity of effluent. The organic combination of the crystallization granulation fluidized bed and the circulating granulation fluidized bed can well perform synergistic treatment on the turbidity and the hardness, and provides an efficient coping and solving method aiming at the complexity of water quality.
(II) the utility model discloses the system is according to the position of the quality of water adjustment fluidized bed of intaking, mainly can solve numerous water quality problems such as high/low turbidity, high calcium hard, high magnesium hard, high algae, high organic matter and high fluorine, high metal ion, and the range of application is very extensive.
(III) the utility model discloses a system can realize automatic control completely, and operation management is simple, and each functional unit links up compactly, and the plane utilization ratio is high, and area is little, and economic practicality is strong.
(IV) the front and back sequence of the main body device of the chemical crystallization circulating granulation fluidized bed and the main body device of the solid-liquid separation circulating granulation fluidized bed can be adjusted according to the water quality condition. The water inlet turbidity is low, the hardness is high, and the chemical crystallization circulating granulation fluidized bed main body device is in front; the inlet water has high turbidity and low hardness, and the chemical crystallization circulating granulation fluidized bed is arranged behind the main body.
Drawings
FIG. 1 is a schematic view of the overall structure of the combined fluidized bed multifunctional water treatment system of the present invention.
The meaning of the individual reference symbols in the figures is: 1-a chemical crystallization circulating granulation fluidized bed main body device, 2-a solid-liquid separation circulating granulation fluidized bed main body device, 3-a first water inlet pipe, 4-a first water outlet pipe, 5-a second water inlet pipe, 6-a second water outlet pipe, 7-an electromagnetic frequency conversion raw water pump, 8-a first total water inlet valve, 9-a first static mixer, 10-an electromagnetic flow meter, a second total water inlet valve, 12-a crystal seed adding unit, 13-a medicament adding unit, 14-a particle discharging unit, 15-a coagulant adding unit, 16-a micro-sand adding unit, 17-a coagulant aid adding unit, 18-a mud-water separating unit, 19-a second static mixer, 20-a pH adjusting unit, 21-a water inlet flow meter, 22-a water inlet pressure gauge and 23-a first pH real-time online detector, 24-a second pH real-time online detector and 25-an online turbidity detector;
1201-seed crystal conveying tank water inlet pump, 1202-seed crystal conveying tank, 1203-particle pump and 1204-seed crystal feeding valve;
1301-a medicament storage tank, 1302-a variable-frequency medicament feeding pump and 1303-a medicament feeding control valve;
1401-particle discharge valve, 1402-particle collection storage tank;
1501-coagulant solution pool, 1502-coagulant control valve, 1503-coagulant adding pump;
1601-mortar box, 1602-mortar control valve, 1603-mortar adding pump;
1701-coagulant aid solution pool, 1702-coagulant aid control valve, 1703-coagulant aid feeding pump;
1801-mud-water separator, 1802-mud discharge pipeline, 1803-mud discharge control valve, 1804-mud discharge pump, 1805-sludge dewatering workshop;
2001-acid liquor storage tank, 2002-acid liquor variable frequency adding pump, 2003-acid liquor adding control valve.
The following examples are provided to explain the present invention in further detail.
Detailed Description
It should be noted that all the components and devices of the present invention, unless otherwise specified, are all the components known in the art. For example, a chemical crystallization circulating granulation fluid bed main body device 1 and a solid-liquid separation circulating granulation fluid bed main body device 2.
As an optimized scheme of the utility model, the chemical crystallization circulating granulation fluidized bed main body device 1 adopts the chemical crystallization circulating granulation fluidized bed main body in the chinese utility model patent with the patent number ZL 201820576426.5, the publication number of the authorization number CN 208327613U, and the patent name "chemical crystallization circulating granulation fluidized bed water treatment system and carbon dioxide adjusting device".
As a preferred scheme of the utility model, the chemical crystallization circulating granulation fluidized bed main body device 1 adopts a chemical crystallization circulating granulation fluidized bed water treatment device disclosed in the Chinese invention patent with the patent number of ZL 201510864696.7, the publication number of CN 105502692B and the patent name of 'a chemical crystallization circulating granulation fluidized bed water treatment device'.
As an optimized scheme of the utility model, the utility model provides a solid-liquid separation circulating granulation fluidized bed main part device 2 adopts the patent number to be ZL201820584535.1, and the grant bulletin number is CN208265834U, the fluidized bed main part device in the chinese utility model patent of the patent name "a circulating granulation fluidized bed equipment that low temperature is low turbid, high turbid or high algae water treatment".
The utility model discloses quote patent number ZL 201820576426.5, grant notice number CN
208327613U, the patent name "chemical crystallization circulating granulation fluidized bed water treatment system and carbon dioxide adjusting device" in the Chinese utility model patent records the whole content to the utility model of the concrete technical scheme and the technical principle to further explain.
The utility model discloses cite patent number ZL 201510864696.7, grant bulletin number CN 105502692B, the patent name is "a chemical crystallization circulation granulation fluidized bed water treatment facilities" chinese invention patent records the whole contents to the concrete technical scheme and the technical principle of the utility model are explained further.
The utility model discloses quote patent number ZL201820584535.1, grant the bulletin number CN208265834U, the patent name is "a low turbid, high turbid or high algae water treatment's circulation granulation fluidized bed equipment of low temperature whole content that records in the chinese utility model patent is right the utility model discloses a concrete technical scheme and technical principle do further explanation.
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example (b):
the embodiment provides a combined fluidized bed multifunctional water treatment system, as shown in fig. 1, comprising a chemical crystallization circulating granulation fluidized bed main body device 1 and a solid-liquid separation circulating granulation fluidized bed main body device 2; a first water inlet pipe 3 and a first water outlet pipe 4 are arranged on the chemical crystallization circulating granulation fluidized bed main body device 1; a second water inlet pipe 5 and a second water outlet pipe 6 are arranged on the main body device 2 of the solid-liquid separation circulating granulation fluidized bed;
an electromagnetic variable-frequency raw water pump 7 and a first main water inlet valve 8 are sequentially arranged on the first water inlet pipe 3 along the water inlet direction; the first water outlet pipe 4 is communicated with the second water inlet pipe 5 through a first static mixer 9; an electromagnetic flowmeter 10 and a second main water inlet valve 11 are sequentially arranged on the second water inlet pipe 5 along the water inlet direction;
the upper part of the main body device 1 of the chemical crystallization circulating granulation fluidized bed is connected with a crystal seed adding unit 12, the lower part of the main body device 1 of the chemical crystallization circulating granulation fluidized bed is connected with a medicament adding unit 13, and the lower part of the main body device 1 of the chemical crystallization circulating granulation fluidized bed is also connected with a particle discharging unit 14;
a coagulant adding unit 15 is arranged on the first water outlet pipe 4;
a micro-sand adding unit 16 is connected on the second water inlet pipe 5 between the electromagnetic flow meter 10 and the second main water inlet valve 11;
the lower part of the main body device 2 of the solid-liquid separation circulating granulation fluidized bed is connected with a coagulant aid adding unit 17, and the bottom of the main body device 2 of the solid-liquid separation circulating granulation fluidized bed is provided with a mud-water separation unit 18;
a second static mixer 19 is arranged on the second water outlet pipe 6, and a pH adjusting unit 20 is arranged on the second water outlet pipe 6 between the solid-liquid separation circulating granulation fluidized bed main body device 2 and the second static mixer 19.
As a preferable scheme of this embodiment, the seed crystal feeding unit 12 includes a seed crystal conveying tank water inlet pump 1201, a seed crystal conveying tank 1202, a particle pump 1203 and a seed crystal feeding valve 1204, which are connected in sequence, where the seed crystal feeding valve 1204 is communicated with the chemical crystallization circulating granulation fluidized bed main body device 1. The seed crystal adding unit 6 realizes the adding control by controlling the quality of the added seed crystal.
As a preferable scheme of this embodiment, the chemical adding unit 13 includes a chemical storage tank 1301, a variable frequency chemical adding pump 1302 and a chemical adding control valve 1303, which are connected in sequence, and the chemical adding control valve 1303 is communicated with the chemical crystallization circulating granulation fluidized bed main body device 1. The medicine adding unit 13 is used for addingAdding NaOH, Ca (OH)2Or Na2CO3。
As a preferable mode of this embodiment, the granule discharging unit 14 includes a granule discharging valve 1401 and a granule collecting storage tank 1402 which are connected to the chemical crystallization circulating granulation fluid bed main body apparatus 1 in this order in the granule discharging direction.
As a preferable scheme of this embodiment, the coagulant adding unit 15 includes a coagulant solution tank 1501, a coagulant control valve 1502, and a coagulant adding pump 1503, which are sequentially disposed on the first water outlet pipe 4 along the water outlet direction. The coagulant used in the coagulant adding unit 15 can be the conventional coagulant in the field.
As a preferable scheme of this embodiment, the fine sand adding unit 16 includes a mortar box 1601, a mortar control valve 1602 and a mortar adding pump 1603 connected in sequence, and the mortar adding pump 1603 is communicated with the second water inlet pipe 5. The fine sand used in the fine sand adding unit 16 may be conventional fine sand in the art.
As a preferable scheme of the embodiment, the coagulant aid adding unit 17 comprises a coagulant aid solution tank 1701, a coagulant aid control valve 1702 and a coagulant aid adding pump 1703 which are connected in sequence, wherein the coagulant aid adding pump 1703 is communicated with the main body device 2 of the solid-liquid separation circulating granulation fluidized bed. The coagulant aid used in the coagulant aid adding unit 17 can be conventional coagulant aids in the field.
As a preferable mode of this embodiment, the mud-water separation unit 18 includes a mud-water separator 1801 disposed at the bottom of the main body 2 of the solid-liquid separation circulating granulation fluid bed, the mud-water separator 1801 is connected to one end of a mud discharge pipe 1802, the mud discharge pipe 1802 is sequentially provided with a mud discharge control valve 1803 and a mud discharge pump 1804, and the other end of the mud discharge pipe 1802 is connected to a mud dewatering plant 1805.
As a preferable scheme of this embodiment, the pH adjusting unit 20 includes an acid liquid storage tank 2001, an acid liquid variable frequency adding pump 2002, and an acid liquid adding control valve 2003, which are connected in sequence, where the acid liquid adding control valve 2003 is communicated with the second water outlet pipe 6. The acidifying agent used in the pH adjustment unit 20 is HCl or H2SO4。
As a preferable scheme of this embodiment, the first water inlet pipe 3 is further provided with a water inlet flow meter 21 and a water inlet pressure gauge 22; a first real-time online pH detector 23 is arranged on the second water outlet pipe 6 in front of the pH adjusting unit 20, and a second real-time online pH detector 24 and an online turbidity detector 25 are arranged on the second water outlet pipe 6 behind the second static mixer 19. Furthermore, the system of the embodiment can be matched with a corresponding automatic control module according to actual needs to realize automatic control.
The utility model discloses a working process as follows:
when the system of the utility model is used, the seed crystal feeding unit 12 fills the seed crystal at the bottom of the main body device 1 of the chemical crystallization circulating granulation fluidized bed, and high-hardness raw water enters the bottom of the main body device 1 of the chemical crystallization circulating granulation fluidized bed through the electromagnetic frequency conversion raw water pump 7 to enable the seed crystal to be in a fluidized state; the variable-frequency medicament feeding pump 1302 feeds the softening medicament into the chemical crystallization circulating granulation fluidized bed main body device 1, the target component is precipitated and crystallized on the seed crystal, the particles grow and become heavy and gradually sink to the bottom of the chemical crystallization circulating granulation fluidized bed main body device 3, a certain number of large-particle crystals are discharged through the particle discharge valve 1401 regularly, and a certain number of seed crystals are fed through the seed crystal conveying tank 1202, and the cycle is repeated.
The effluent treated by the main body device 1 of the chemical crystallization circulating granulation fluidized bed enters a main body device 2 of the solid-liquid separation circulating granulation fluidized bed, corresponding materials are added into a first water outlet pipe 4 through a coagulant adding pump 1503 and a second water inlet pipe 5 through a mortar adding pump 1603 and a coagulant aid adding pump 1703, the amount of acid liquor is controlled through an acid liquor variable frequency adding pump 2002 by monitoring through a second pH real-time online detector 24, the pH of the effluent is adjusted, and sludge generated by treatment of a mud-water separator 1801 is discharged to a sludge dewatering workshop 1805.
The utility model discloses a system overall structure is clear, and each functional unit links up compactly, and the plane utilization ratio is high, and convenient operation can get rid of aquatic turbidity and hardness simultaneously, also can get rid of the multiple ion of aquatic high-efficiently in step.
According to the above technical scheme, the utility model discloses a water treatment system has perfected the single equipment among the prior art, has compensatied the not enough of equipment application, has provided the new combination mode of two kinds of fluidized bed common operations, and can replace in a flexible way according to quality of water.
Claims (10)
1. A combined fluidized bed multifunctional water treatment system comprises a chemical crystallization circulating granulation fluidized bed main body device (1) and a solid-liquid separation circulating granulation fluidized bed main body device (2); a first water inlet pipe (3) and a first water outlet pipe (4) are arranged on the chemical crystallization circulating granulation fluidized bed main body device (1); a second water inlet pipe (5) and a second water outlet pipe (6) are arranged on the main body device (2) of the solid-liquid separation circulating granulation fluidized bed;
the method is characterized in that:
an electromagnetic variable-frequency raw water pump (7) and a first main water inlet valve (8) are sequentially arranged on the first water inlet pipe (3) along the water inlet direction; the first water outlet pipe (4) is communicated with the second water inlet pipe (5) through a first static mixer (9); an electromagnetic flowmeter (10) and a second main water inlet valve (11) are sequentially arranged on the second water inlet pipe (5) along the water inlet direction;
the upper part of the chemical crystallization circulating granulation fluidized bed main body device (1) is connected with a seed crystal feeding unit (12), the lower part of the chemical crystallization circulating granulation fluidized bed main body device (1) is connected with a medicament feeding unit (13), and the lower part of the chemical crystallization circulating granulation fluidized bed main body device (1) is also connected with a particle discharging unit (14);
a coagulant adding unit (15) is arranged on the first water outlet pipe (4);
a micro-sand adding unit (16) is connected on the second water inlet pipe (5) between the electromagnetic flowmeter (10) and the second main water inlet valve (11);
the lower part of the main body device (2) of the solid-liquid separation circulating granulation fluidized bed is connected with a coagulant aid adding unit (17), and the bottom of the main body device (2) of the solid-liquid separation circulating granulation fluidized bed is provided with a mud-water separation unit (18);
a second static mixer (19) is arranged on the second water outlet pipe (6), and a pH adjusting unit (20) is arranged on the second water outlet pipe (6) between the solid-liquid separation circulating granulation fluidized bed main body device (2) and the second static mixer (19).
2. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the seed crystal feeding unit (12) comprises a seed crystal delivery tank water inlet pump (1201), a seed crystal delivery tank (1202), a particle pump (1203) and a seed crystal feeding valve (1204) which are connected in sequence, and the seed crystal feeding valve (1204) is communicated with the chemical crystallization circulating granulation fluidized bed main body device (1).
3. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the agent adding unit (13) comprises an agent storage tank (1301), a variable frequency agent adding pump (1302) and an agent adding control valve (1303) which are connected in sequence, and the agent adding control valve (1303) is communicated with the chemical crystallization circulating granulation fluidized bed main body device (1).
4. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the granule discharging unit (14) comprises a granule discharging valve (1401) and a granule collecting storage tank (1402) which are connected to the chemical crystallization circulating granulation fluidized bed main body device (1) in sequence along the granule discharging direction.
5. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the coagulant adding unit (15) comprises a coagulant solution tank (1501), a coagulant control valve (1502) and a coagulant adding pump (1503) which are sequentially arranged on the first water outlet pipe (4) along the water outlet direction.
6. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the micro-sand adding unit (16) comprises a mortar box (1601), a mortar control valve (1602) and a mortar adding pump (1603) which are connected in sequence, and the mortar adding pump (1603) is communicated with the second water inlet pipe (5).
7. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the coagulant aid adding unit (17) comprises a coagulant aid solution tank (1701), a coagulant aid control valve (1702) and a coagulant aid adding pump (1703) which are connected in sequence, and the coagulant aid adding pump (1703) is communicated with the main body device (2) of the solid-liquid separation circulating granulation fluidized bed.
8. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the mud-water separation unit (18) comprises a mud-water separator (1801) arranged at the bottom of the solid-liquid separation circulating granulation fluidized bed main body device (2), the mud-water separator (1801) is connected with one end of a mud discharge pipeline (1802), a mud discharge control valve (1803) and a mud discharge pump (1804) are sequentially arranged on the mud discharge pipeline (1802), and the other end of the mud discharge pipeline (1802) is connected with the sludge dewatering plant (1805).
9. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the pH adjusting unit (20) comprises an acid storage tank (2001), an acid variable frequency adding pump (2002) and an acid adding control valve (2003) which are connected in sequence, and the acid adding control valve (2003) is communicated with the second water outlet pipe (6).
10. The combined fluidized bed multifunctional water treatment system as claimed in claim 1, wherein the first water inlet pipe (3) is further provided with a water inlet flow meter (21) and a water inlet pressure gauge (22); a first pH real-time online detector (23) is arranged on a second water outlet pipe (6) in front of the pH adjusting unit (20), and a second pH real-time online detector (24) and an online turbidity detector (25) are arranged on the second water outlet pipe (6) behind the second static mixer (19).
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| CN113149267A (en) * | 2021-03-24 | 2021-07-23 | 西安建筑科技大学 | Multifunctional water treatment system of combined fluidized bed |
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