CN108358413B - Sludge treatment system - Google Patents
Sludge treatment system Download PDFInfo
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- CN108358413B CN108358413B CN201810314542.4A CN201810314542A CN108358413B CN 108358413 B CN108358413 B CN 108358413B CN 201810314542 A CN201810314542 A CN 201810314542A CN 108358413 B CN108358413 B CN 108358413B
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- Prior art keywords
- acid gas
- sludge treatment
- sludge
- communicated
- pipeline
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge treatment system, which comprises a sludge stacking area, a sludge treatment tank and a storage pool, wherein the sludge stacking area is arranged on the sludge stacking area; the feeding mechanism is used for conveying the sludge in the sludge stacking area to the sludge treatment tank; the acid gas pipeline is laid at the bottom of the sludge treatment tank; the acid gas feeding system is communicated with the acid gas pipeline; the pressurization system is communicated with the acid gas pipeline; and the discharge system is communicated between the sludge treatment tank and the storage pool and is used for discharging the treated sludge water in the sludge treatment tank into the storage pool. According to the sludge treatment system, stirring is not needed in the reaction process to promote the reaction, hydrochloric acid permeates from the bottom to the top and promotes the reaction through the pressurization system, the reaction speed is effectively improved through air circulation, and meanwhile, the environmental protection is further promoted.
Description
Technical Field
The invention relates to the fields of sludge treatment containing metal or metal ions, environmental protection equipment and the like, in particular to a sludge treatment system.
Background
In the field of environmental protection, sludge treatment is one of the most important. Generally, sludge is composed of solid matters in raw wastewater and solid matters generated in a wastewater treatment process, such as aluminum and copper, and wastewater also contains metal ions and the like. Sludge treatment is a process of carrying out reduction, stabilization and harmless treatment on sludge. The higher the degree of wastewater treatment, the more sludge residue will be produced to be treated.
Currently, there are a variety of sludge treatment systems, which generally utilize acids, bases or microorganisms to react with the corresponding components of the sludge, and during the reaction, continuous stirring is usually required to mix the reactants thoroughly. However, in the process of reaction, harmful gases are usually present in reactants or products, and the odor is large, which seriously affects the physical health of workers and destroys the ambient air environment.
Disclosure of Invention
The purpose of the invention is: provides a sludge treatment system to solve at least one technical problem in the prior art.
The technical scheme for realizing the purpose is as follows: a sludge treatment system comprises a sludge stacking area, a sludge treatment tank and a storage pool; the feeding mechanism is used for conveying the sludge in the sludge stacking area to the sludge treatment tank; the acid gas pipeline is laid at the bottom of the sludge treatment tank; the acid gas feeding system is communicated with the acid gas pipeline; the pressurization system is communicated with the acid gas pipeline; and the discharge system is communicated between the sludge treatment tank and the storage pool and is used for discharging the treated sludge water in the sludge treatment tank into the storage pool.
Furthermore, the acid gas pipeline is of a net structure and comprises at least one acid gas inlet, at least one gas flow inlet and a plurality of exhaust holes.
Further, the acid gas pipeline is provided with a plurality of pipe bodies, and the exhaust holes are formed in two sides of each pipe body.
Furthermore, the opening direction of each exhaust hole is upward, and the included angle between the exhaust hole and the horizontal plane is 30-85 degrees.
Further, the pressurization system comprises a roots blower which is communicated with the acid gas pipeline through a pipeline; and the cover plate or the cover cloth is covered and connected on the sludge treatment tank.
Further, the pressurization system also comprises a fan which is connected to the cover plate or the cover cloth through a pipeline and is communicated with the sludge treatment tank; and the acid gas absorption tower is communicated with the outlet of the fan.
Further, the air outlet of the acid gas absorption tower is also communicated with an air inlet pipeline of the Roots blower.
Further, the acid gas feeding system comprises an acid liquid storage tank communicated to the acid gas pipeline through an acid gas inlet pipeline, an acid liquid atomizer is arranged in the acid liquid storage tank, and an acid gas inlet valve is arranged on the acid gas inlet pipeline.
Further, the discharge system comprises a sewage discharge pump which is communicated between the sludge treatment tank and the storage pool through a sewage discharge pipeline.
Further, the feeding mechanism comprises a track which is arranged above the sludge stacking area; the sliding assembly is arranged on the track; the lifting hook is arranged on the sliding assembly.
The invention has the advantages that: according to the sludge treatment system, stirring is not needed in the reaction process to promote the reaction, hydrochloric acid permeates from the bottom to the top and promotes the reaction through the pressurization system, the reaction speed is effectively improved through air circulation, and meanwhile, the environmental protection is further promoted.
Drawings
The invention is further explained below with reference to the figures and examples.
FIG. 1 is a plan view of a sludge treatment system according to an embodiment of the present invention.
FIG. 2 is a side partial cutaway view of a sludge treatment system according to an embodiment of the present invention.
Fig. 3 is a partially enlarged view of fig. 1.
Fig. 4 is a top view of the sour gas conduit.
Fig. 5 is a cross-sectional view of a single tube of the sour gas pipeline.
Wherein the content of the first and second substances,
1, a sludge stacking area; 2, a sludge treatment tank;
3, a storage pool; 41 track;
42 a slide assembly; 43 hook;
5 acid gas pipeline; a 51 acid gas inlet;
52 an air flow inlet; 53 exhaust holes;
61 acid liquor storage tank; 62 acid inlet valve;
63 an acid inlet line; 71 roots blower;
72 blower fan; 73 acid gas absorption tower;
74 a cover plate or drape; 75 air suction hood;
8 a sewage pump.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example (b): as shown in fig. 1 to 3, a sludge treatment system includes a sludge stacking area 1, a sludge treatment tank 2, and a storage pool 3; and the feeding mechanism, the acid gas pipeline 5, the acid gas feeding system, the pressurization system and the discharging system.
In this embodiment, the sludge stacking area 1, the sludge treatment tank 2, and the storage pool 3 are designed according to a reasonable plan. A plurality of sludge treatment tanks 2 and storage tanks 3 may be provided.
The feeding mechanism is used for conveying the sludge in the sludge stacking area 1 to the sludge treatment tank 2. The feeding mechanism comprises a rail 41, a sliding assembly 42 and a lifting hook 43, the rail 41 is arranged above the sludge stacking area 1, the rail 41 comprises a transverse rail 41 and a longitudinal rail 41, and the transverse rail 41 is arranged on the longitudinal rail 41 through a roller; the sliding assembly 42 is arranged on the track 41; the lifting hook 43 is arranged on the sliding component 42, the sliding component 42 comprises a roller and a mounting frame, and the lifting hook 43 is arranged below the mounting frame. Lifting hook 43 carries the sludge block to the forklift, and the rethread forklift carries mud to sludge treatment tank 2, feed mechanism's structure is current technique, and is no longer repeated here.
As shown in fig. 4 to 5, an acid gas pipeline 5 is laid at the bottom of the sludge treatment tank 2; the acid gas pipeline 5 is a network structure formed by the horizontal and vertical distribution of the pipe body, and the acid gas pipeline 5 comprises at least one acid gas inlet 51, at least one gas inlet 52 and a plurality of exhaust holes 53. The exhaust holes 53 are formed at both sides of each of the pipe bodies. The opening direction of each exhaust hole 53 is upward, and the included angle between the exhaust holes and the horizontal plane is 30-85 degrees. Preferably 45. This structure can avoid mud to block up exhaust hole 53, can make the sour gas in exhaust hole 53 upwards get into the sludge blanket on upper strata simultaneously again.
The acid gas feeding system is communicated with an acid gas inlet 51 of the acid gas pipeline 5. Specifically, the acid gas feeding system comprises an acid liquid storage tank 61, an acid liquid atomizer, an acid gas inlet valve 62 and an acid gas inlet pipeline 63, wherein the acid liquid storage tank 61 is communicated to the acid gas pipeline 5 through the acid gas inlet pipeline 63, the acid liquid atomizer is arranged in the acid liquid storage tank 61, and the acid gas inlet pipeline 63 is provided with the acid gas inlet valve 62. In this example, hydrochloric acid was used.
The pressurization system is communicated with the acid gas pipeline 5. Specifically, the pressurization system comprises a roots blower 71, a fan 72, an acid gas absorption tower 73, a cover plate or cover cloth 74 and a pipeline for gas flow circulation, wherein the roots blower 71 is communicated with the acid gas pipeline 5 through the pipeline, and the pipeline is provided with a valve; the cover plate or cover cloth 74 is covered on the sludge treatment tank 2, the middle part of the cover plate or cover cloth 74 is provided with an exhaust hole 53, an air suction cover 75 covers the exhaust hole 53, and the air suction cover 75 is connected on the fan 72 through a pipeline. The acid gas absorption tower 73 is communicated with the outlet of the fan 72. The air outlet of the acid gas absorption tower 73 is also communicated with the air inlet pipeline of the Roots blower 71. Because the reaction is exothermic reaction, therefore, the air pumped from the sludge treatment tank 2 by the fan 72 enters the acid gas absorption tower 73 to filter out acid and residual heat, and after the hot air filtered by the acid gas absorption tower 73 is discharged into the sludge treatment tank 2 through the roots blower 71, on one hand, the air pressure of the sludge treatment tank 2 is increased, so that the hydrochloric acid fully reacts with the sludge under the action of air flow and larger air pressure (generally 2 atmospheric pressures), on the other hand, the hot air can accelerate the reaction speed, no heat energy is wasted, and all reactions are carried out in the circulating system.
The discharge system is communicated between the sludge treatment tank 2 and the storage tank 3 and is used for discharging the treated sludge water in the sludge treatment tank 2 into the storage tank 3. The discharge system comprises a sewage pump 8 which is communicated between the sludge treatment tank 2 and the storage tank 3 through a sewage pipeline.
When sludge treatment is performed, the upper layer of the sludge treatment tank 2 is sludge, and the lower layer is an acid gas pipeline 5. The acid gas is sprayed upwards from the exhaust hole 53 of the acid gas pipeline 5 and gradually permeates upwards, and the acid gas reacts with metal substances or metal compounds in the sludge, and the like, which is an exothermic reaction. And then the acid gas feeding system stops working, the pressurizing system works, a valve of the pressurizing system is opened, the Roots blower 71 blows air into the sludge treatment tank 2, the air flow is sprayed upwards from the exhaust hole 53, meanwhile, the fan 72 works, gas on the upper layer of sludge in the sludge treatment tank 2 after reaction is extracted to the acid gas absorption tower 73, the acid gas absorption tower 73 absorbs and filters the gas, then hot air is introduced into the air inlet of the Roots blower 71 again, and the Roots blower 71 blows air to the exhaust hole 53. At this time, the lower layer of the sludge and the upper layer of the sludge form a pressure difference, so that the acid gas is more easily permeated upwards and fully reacted with the sludge.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements 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 sludge treatment system is characterized by comprising a sludge stacking area, a sludge treatment tank and a storage pool; and
the feeding mechanism is used for conveying the sludge in the sludge stacking area to the sludge treatment tank;
the acid gas pipeline is laid at the bottom of the sludge treatment tank;
the acid gas feeding system is communicated with the acid gas pipeline;
the pressurization system is communicated with the acid gas pipeline;
the discharge system is communicated between the sludge treatment tank and the storage pool and is used for discharging the treated sludge water in the sludge treatment tank into the storage pool;
the cover plate or the cover cloth is covered and connected on the sludge treatment tank;
the supercharging system also comprises a fan which is connected to the cover plate or the cover cloth through a pipeline and is communicated with the sludge treatment tank;
the acid gas absorption tower is communicated with the outlet of the fan;
the air outlet of the acid gas absorption tower is also communicated with an air inlet pipeline of the Roots blower, and the Roots blower is communicated with the acid gas pipeline through a pipeline.
2. The sludge treatment system of claim 1 wherein the acid gas conduit is a mesh structure comprising at least one acid gas inlet, at least one gas flow inlet, and a plurality of vents.
3. The sludge treatment system of claim 2 wherein said acid gas conduit is provided with a plurality of tubes, and said vent holes are provided on both sides of each of said tubes.
4. The sludge treatment system of claim 3 wherein each of said louvers is upwardly directed and has an angle of from 30 ° to 85 ° with respect to the horizontal.
5. The sludge treatment system of claim 1, wherein the acid gas feeding system comprises an acid liquid storage tank communicated to the acid gas pipeline through an acid gas inlet pipeline, an acid liquid atomizer is arranged in the acid liquid storage tank, and an acid gas inlet valve is arranged on the acid gas inlet pipeline.
6. The sludge treatment system of claim 1 wherein the discharge system comprises
And the sewage discharge pump is communicated between the sludge treatment tank and the storage pool through a sewage discharge pipeline.
7. The sludge treatment system of claim 1 wherein the feed mechanism comprises
The track is arranged above the sludge stacking area;
the sliding assembly is arranged on the track;
the lifting hook is arranged on the sliding assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314542.4A CN108358413B (en) | 2018-04-10 | 2018-04-10 | Sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314542.4A CN108358413B (en) | 2018-04-10 | 2018-04-10 | Sludge treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108358413A CN108358413A (en) | 2018-08-03 |
| CN108358413B true CN108358413B (en) | 2021-04-06 |
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| CN201810314542.4A Active CN108358413B (en) | 2018-04-10 | 2018-04-10 | Sludge treatment system |
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| CN111020552B (en) * | 2020-01-13 | 2020-11-10 | 西安交通大学 | Preparation method of refractory metal molybdenum protective film resistant to corrosion of liquid lead and bismuth |
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| US3268296A (en) * | 1963-04-08 | 1966-08-23 | Hooker Chemical Corp | Process and apparatus for treating gas streams |
| JP2006116528A (en) * | 2004-09-21 | 2006-05-11 | Takuma Co Ltd | Biomass resource treatment method and its treatment equipment |
| CN101445290A (en) * | 2008-12-09 | 2009-06-03 | 武汉科梦科技发展有限公司 | Environment-friendly high-performance waste water ammonia-removal process and device thereof |
| CN205164469U (en) * | 2015-09-29 | 2016-04-20 | 天津汇禾尚志科技发展有限公司 | Sewage treatment plant waste gas treatment system |
| CN105753263A (en) * | 2016-04-27 | 2016-07-13 | 常州大学 | Large breeding farm waste treatment device and method |
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