CN113385264B - Wet ball milling water separation treatment device and method for garbage - Google Patents
Wet ball milling water separation treatment device and method for garbage Download PDFInfo
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- CN113385264B CN113385264B CN202110716122.0A CN202110716122A CN113385264B CN 113385264 B CN113385264 B CN 113385264B CN 202110716122 A CN202110716122 A CN 202110716122A CN 113385264 B CN113385264 B CN 113385264B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000926 separation method Methods 0.000 title claims abstract description 31
- 238000000498 ball milling Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 41
- 239000004576 sand Substances 0.000 claims abstract description 29
- 239000013049 sediment Substances 0.000 claims description 40
- 238000004062 sedimentation Methods 0.000 claims description 29
- 239000000706 filtrate Substances 0.000 claims description 25
- 238000001556 precipitation Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000010802 sludge Substances 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 11
- 238000006297 dehydration reaction Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- 239000008394 flocculating agent Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000002893 slag Substances 0.000 description 7
- 238000005273 aeration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
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- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000009264 composting Methods 0.000 description 3
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 241000255925 Diptera Species 0.000 description 2
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- 230000007062 hydrolysis Effects 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 239000010893 paper waste Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a wet ball milling water separation treatment device and method for garbage, and belongs to the technical field of garbage treatment. The wet-type ball-milling water separation treatment device for garbage comprises a ball mill, wherein the ball mill is provided with a feeding end for treating garbage, a discharging end of the ball mill is connected with a feeding end of a sand-water separator, light components, slurry and fine sand of the sand-water separator are connected with a double-shaft shredder through an overflow port to be shredded into light components below 30 mm and then enter a slurry pond, a heavy object of the sand-water separator is connected with the feeding end of the ball mill through a large-inclination belt conveyor, a high-pressure fan for absorbing odor is arranged beside the ball mill, an output end of the high-pressure fan is connected with the slurry pond through a pipeline, a slurry pump is arranged at the bottom of the slurry pond, and an output end of the slurry pump is communicated with a cyclone sand remover through a pipeline. The beneficial effects are that: the garbage sorting device has the advantages of effective garbage sorting, resource recycling, simple structure and low treatment cost.
Description
Technical Field
The invention belongs to the technical field of garbage treatment, and particularly relates to a wet ball milling water separation treatment device and method for garbage.
Background
Garbage is produced along with the progress of civilization of human beings, and the quantity of the garbage is rapidly increased along with the development of economy, so that the garbage becomes a great public hazard.
The garbage mentioned in the invention comprises household garbage, kitchen garbage, stale garbage, construction garbage, decoration garbage, livestock dying of illness, medical garbage and the like.
The household garbage has the characteristics of high water content and complex components, and the components can be divided into three types: light component, heavy component, perishable component.
The light components mainly comprise: plastic, bamboo, fabric, etc.
The heavy components mainly comprise: masonry, glass, ceramic, metal, etc.
The perishable components mainly include: food waste, waste paper, and the like.
At present, the main garbage treatment methods at home and abroad include a composting method, a landfill method, an incineration method and a mechanical sorting method.
The composting method has large occupied area, long time consumption, easy breeding of mosquitoes and flies, malodor emission, difficult mass production, more impurities such as glass in the waste composting products, and difficult popularization and use.
The landfill method has large occupied area, needs to perform anti-seepage treatment, also builds a biogas recovery system and a percolate treatment plant, is easy to pollute underground water and surrounding air, cannot recycle resources, and is more and more difficult to implement for China with numerous population and increasingly tense land resources.
The incineration method has the advantages of large investment, high operation cost, low efficiency and influence on the incineration efficiency because a large amount of incombustible substances also enter the hearth, and the stack retting and dehydration are needed before the household garbage is incinerated for power generation.
The mechanical sorting method adopts machinery to sort the garbage into combustible matters, perishable components and inorganic matters, the existing sorting equipment is difficult to adapt to complex garbage components, the sorting efficiency is low, and the large-scale popularization and application are difficult.
Therefore, a wet ball milling water separation treatment device for garbage is provided to solve the defects existing in the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides the wet ball milling water separation treatment device for garbage, wherein iron in garbage is continuously ground in a ball mill, an oxide film is difficult to form, the state of zero-valent iron is always kept, the property is active, and the iron is easy to react with refractory macromolecular organic matters in garbage liquid to decompose the refractory macromolecular organic matters into micromolecules which are easy to biochemically treat; because the particles of the bottom mud are fine, the bottom mud is difficult to independently carry out extrusion dehydration, when the bottom mud is mixed with the scum to carry out extrusion dehydration, the scum becomes a filter aid, and a part of particles in the bottom mud can be trapped; the scum becomes a filler for microorganism growth, and under the action of aeration, microorganisms continuously grow and absorb and decompose pollutants in water and release heat at the same time, so that the temperature of the liquid is raised, and the cyclic utilization in the system is facilitated; the degradation-resistant pollutants (such as grease) in the water float to the liquid level by aeration, and cannot be discharged from a slurry pump at the bottom until hydrolysis acidification occurs to dissolve in the water, so that the biochemical treatment is easy.
The technical scheme for solving the technical problems is as follows: this rubbish wet-type ball-milling water separation processing apparatus includes the ball mill, the ball mill is equipped with the feed end that is used for handling rubbish, the feed end of sand-water separator is connected to the discharge end of ball mill, the light fraction of sand-water separator, mud and fine sand get into biax shredder through the overflow mouth and tear the light fraction down to below 30 millimeters reentrant sediment stuff pond, the heavy object of sand-water separator passes through big inclination band conveyer to be connected the feed end of ball mill, the ball mill next door is equipped with the high-pressure fan that is used for absorbing odor and dust, the output of high-pressure fan passes through the pipeline and lets in sediment stuff pond bottom, the bottom of sediment stuff pond is equipped with the sediment stuff pump, the output of sediment stuff pump passes through pipeline intercommunication cyclone desander, the light fraction of cyclone desander, mud and fine sand all get into the screw extrusion dehydrator through the pipeline, the filter liquor of screw extrusion dehydrator through the extrusion filter liquor entering the precipitation tank, the dense filtrate after the precipitation of precipitation tank with the heavy object of sand separator passes through the pipeline connection the feed end of ball mill, the output of sediment stuff pump passes through the pipeline connection in the sediment stuff pond, the sediment stuff pump passes through the sediment stuff pump is equipped with the overflow end of sediment stuff pump after the sediment sump bottom has been passed through the sediment sump bottom.
The beneficial effects are that:
1. Iron in the garbage is continuously ground in a ball mill, so that an oxide film is difficult to form, the state of zero-valent iron is always kept, the property is active, and the iron is easy to react with refractory macromolecular organic matters in garbage liquid to decompose the refractory macromolecular organic matters into micromolecules which are easy to biochemically treat;
2. Because the particles of the bottom mud are fine, the bottom mud is difficult to independently carry out extrusion dehydration, when the bottom mud is mixed with the scum to carry out extrusion dehydration, the scum becomes a filter aid, and a part of particles in the bottom mud can be trapped;
3. The scum becomes a filler for microorganism growth, and under the action of aeration, microorganisms continuously grow and absorb and decompose pollutants in water and release heat at the same time, so that the temperature of the liquid is raised, and the cyclic utilization in the system is facilitated; the high-pressure fan can absorb odor and dust and can also utilize the odor to provide oxygen required by growth for microorganisms in the slurry pond.
4. The degradation-resistant pollutants (such as grease) in the water float to the liquid level by aeration, and cannot be discharged from a slurry pump at the bottom until hydrolysis acidification occurs to dissolve in the water, so that the biochemical treatment is easy.
Further, an induced draft fan for extracting odor is arranged above the slurry tank, and the input end of the induced draft fan is connected with a pipeline communicated with the sealed space at the upper part of the slurry tank.
The beneficial effects of adopting the further scheme are as follows: can absorb odor, avoid polluting the environment and influence the work of staff.
Further, a baffle plate for separating scum is arranged in the sedimentation tank, so that the scum is prevented from entering the sedimentation tank along with the dilute filtrate.
The beneficial effects of adopting the further scheme are as follows: and separating out scum.
Further, a flocculant is added in a pipeline between the sedimentation tank and the sedimentation tank.
The beneficial effects of adopting the further scheme are as follows: can separate solid and liquid rapidly.
Further, a valve is arranged on a pipeline between the bottom of the precipitation tank and the feeding end of the ball mill.
The beneficial effects of adopting the further scheme are as follows: the dilute filtrate and the dross are made to flow out from the respective overflow ports.
The wet-type ball-milling water separation treatment method for the garbage is characterized by comprising the following steps of:
S1: delivering the garbage into a ball mill for ball milling treatment;
S2: carrying out light-heavy separation on the ball-milled garbage by a sand-water separator to separate light components, slurry and fine sand;
S3: repeating the step S1 by using the heavy objects separated by the sand-water separator, and enabling the separated light components, slurry and fine sand to enter a double-shaft shredder to shred the light components to be less than 30 mm and then enter a slurry tank for sedimentation treatment;
S4: separating heavy objects from the mixture of the dross and the bottom mud after the precipitation treatment through a slurry pump, then, feeding the mixture into a spiral extrusion dehydrator for press filtration and dehydration, and additionally treating the obtained filter residues, wherein the obtained filter liquor enters a precipitation tank for precipitation and dross separation treatment;
S5: and (3) repeating the step (S1) of the concentrated filtrate after the sediment and scum separation treatment, the scum and heavy objects separated by the cyclone desander, wherein the dilute filtrate after the sediment and scum separation treatment enters a sedimentation tank, and the step (S1) of the sediment of the sedimentation tank is repeated, so that the obtained clarified filtrate is subjected to sewage treatment.
The beneficial effects are that: the treatment process is simple, the cost is low, and the garbage can be effectively sorted and recycled.
In step S4, a slurry pump for conveying the mixture of the dross and the bottom sludge to the cyclone sand remover is arranged at the bottom of the slurry tank, and a separator is arranged in the settling tank.
Further, in step S5, a sludge pump for conveying the bottom sludge to the ball mill is provided at the bottom of the sedimentation tank.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
1. Ball mill; 2. a high-pressure fan; 3. a sand-water separator; 4. a biaxial shredder; 5. a slag slurry pool; 6. a slurry pump; 7. a cyclone desander; 8. a screw extrusion dehydrator; 9. a precipitation tank; 10. a partition plate; 11. a sedimentation tank; 12. a sludge pump; 13. and (5) a draught fan.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1
As shown in fig. 1, this embodiment provides a wet ball mill water separation treatment device for garbage, including ball mill 1, ball mill 1 is equipped with the feed end that is used for handling garbage, the feed end of sand-water separator 3 is connected to ball mill 1's discharge end, the light fraction of sand-water separator 3, mud and fine sand get into biax shredder 4 through the overflow mouth connection and tear the light fraction down to 30 millimeters reentrant sediment tank 5, the heavy object of sand-water separator 3 passes through big inclination band conveyer connection ball mill 1's feed end, ball mill 1 next door is equipped with high-pressure fan 2 that is used for absorbing odor and dust, high-pressure fan 2's output is passed through the pipeline and is let in sediment tank 5 bottom, the bottom of sediment tank 5 is equipped with sediment pump 6, the output of sediment pump 6 is through pipeline intercommunication cyclone sand remover 7, the light fraction of cyclone sand remover 7, mud and fine sand all get into screw extrusion dehydration machine 8 through the pipeline, screw extrusion dehydration machine 8 gets into 9 through the filtrate that extrudeed the filter liquor that produces, the heavy object is equipped with through big inclination band conveyer connection in the sediment tank 9 the filter liquor that is equipped with the filter liquor tank 1 is equipped with in the pipeline that is equipped with, the filter liquor separator 1 is connected to the pipeline 13 is equipped with in the sedimentation tank 1 is connected to the sedimentation tank 1 through the pipeline and is equipped with the flocculating agent that is used for the top sediment tank 1 is connected to sediment tank 1, the filter liquor tank is connected to the bottom is equipped with in the sedimentation tank 13 to the filter liquor tank is connected to the end.
The wet-type ball-milling water separation treatment method for the garbage is characterized by comprising the following steps of:
S1: delivering the garbage into a ball mill 1 for ball milling treatment;
S2: carrying out light-heavy separation on the ball-milled garbage by a sand-water separator 3 to separate light components, slurry and fine sand;
S3: repeating the step S1 by the heavy objects separated by the sand-water separator 3, and allowing the separated light components, slurry and fine sand to enter a double-shaft shredder to shred the light components to below 30 mm and then enter a slurry tank 5 for sedimentation treatment;
S4: the mixture of the scum and the bottom mud after the precipitation treatment is sent into a cyclone sand remover 7 through a slurry pump 6 to separate out heavy objects, then enters a spiral extrusion dehydrator to carry out filter pressing dehydration, the obtained filter residues are additionally treated, and the obtained filtrate enters a precipitation tank 9 to carry out precipitation and scum separation treatment;
S5: and (3) repeating the step (S1) of the concentrated filtrate after the sediment and scum separation treatment, the scum and heavy objects separated by the cyclone desander, wherein the dilute filtrate after the sediment and scum separation treatment enters a sedimentation tank, and the step (S1) of the sediment of the sedimentation tank is repeated, so that the obtained clarified filtrate is subjected to sewage treatment.
Further, in step S4, a slurry pump 6 for delivering the mixture of the dross and the bottom sludge to the cyclone sand remover 7 is provided at the bottom of the slurry tank 5; a baffle plate 10 is arranged in the precipitation tank 9.
Further, in step S5, a sludge pump 12 for conveying the bottom sludge to the ball mill 1 is provided at the bottom of the sedimentation tank 11.
The household garbage related to the application has high water content and complex components, and the components can be divided into three types: light component, heavy component, perishable component. The light components mainly comprise: plastics, bamboo, fabrics, etc.; the heavy components mainly comprise: masonry, glass, ceramic, metal, etc.; the perishable components mainly include: food waste, waste paper, and the like.
The operation mode is as follows: the garbage and the circulating liquid are sent into a ball mill together for wet grinding (light components are ground into pieces, heavy components are ground into fine sand, perishable components are ground into slurry), and then the slurry enters a sand-water separator for water separation: overflowing light components, slurry and fine sand into a double-shaft shredder to be shredded to be below 30 mm, and then entering a slurry tank; the un-crushed heavy objects are sunk in the water bottom and extracted by the inclined spiral conveyor and sent back to the ball mill for continuous crushing. In the slurry pond, the material is divided into two parts: the upper part is a floating slag layer formed by light garbage, and the lower layer is a mixture of bottom mud (formed by mud and fine sand sediment) and floating slag; pumping the lower layer material to a cyclone sand remover through a slag slurry pump at the bottom of the tank, separating out non-crushed heavy objects, returning to a ball mill, continuously crushing, and feeding the rest materials into a spiral extrusion dehydrator for extrusion dehydration to form filter residues (which can be used for incineration power generation, carbonization, plastic granule preparation and the like) with the water content lower than 60 percent and filtrate; the filtrate enters a precipitation tank and is divided into upper dilute filtrate, scum and lower concentrated filtrate, a valve on an outlet pipe of the concentrated filtrate is regulated to enable the dilute filtrate and the scum to flow out from respective overflow ports, a baffle plate is arranged in the precipitation tank to prevent the scum from flowing out from the dilute filtrate overflow ports, and the concentrated filtrate is returned to the ball mill together with the scum after passing through the valve on the outlet pipe; mixing the dilute filtrate with a flocculating agent, then entering the lower part of a sedimentation tank for sedimentation, pumping the formed sludge back to a ball mill through a sludge pump at the bottom, and overflowing the supernatant to a sewage treatment device for continuous treatment. The odor and dust generated by garbage treatment are sent to the bottom of a slag slurry pool through a high-pressure fan to carry out aeration treatment on slag slurry, and the odor discharged from the surface of a slag layer is sent to an odor treatment device through a draught fan to be continuously treated.
In the description of the present invention, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (6)
1. The utility model provides a rubbish wet-type ball-milling water separation processing apparatus which characterized in that includes:
The ball mill (1), ball mill (1) is equipped with the feed end that is used for handling rubbish, the feed end of sand-water separator (3) is connected to the discharge end of ball mill (1), the light fraction, mud and the fine sand of sand-water separator (3) pass through overflow mouth and connect and get into biax shredder (4) and tear up light fraction to below 30 millimeters reentrant sediment stuff pond (5), the heavy object of sand-water separator (3) passes through big inclination band conveyer and connects the feed end of ball mill (1), ball mill (1) next door is equipped with high-pressure fan (2) that are used for absorbing odor and dust, the output of high-pressure fan (2) passes through the pipeline and lets in sediment stuff pond (5) bottom, the bottom of sediment stuff pond (5) is equipped with sediment stuff pump (6), the output of sediment stuff pump (6) passes through pipeline intercommunication cyclone sand remover (7), light fraction, sand and the sand of spiral-flow remover (7) all pass through the pipeline and get into spiral-flow squeeze dehydrator (8), the heavy object (8) pass through the sedimentation tank (9) and pass through sediment stuff (9) and pass through sediment separator (11) and sediment stuff separator (11) and sediment tank (9) and sediment trap (9) and separator (9) are passed through together, the bottom of sedimentation tank (11) is equipped with sludge pump (12), the output of sludge pump (12) is through the pipe connection the feed end of ball mill (1), be provided with in sedimentation tank (9) be used for separating dross baffle (10), make the dross avoid entering into along with rare filtrate in sedimentation tank (11) sedimentation tank (9) with add the flocculating agent in the pipeline between sedimentation tank (11).
2. The wet ball milling water separation treatment device for garbage according to claim 1, wherein an induced draft fan (13) for extracting odor is arranged above the slurry tank (5), and the input end of the induced draft fan (13) is connected with a pipeline communicated with the closed space at the upper part of the slurry tank (5).
3. The wet ball milling water separation treatment device for garbage according to claim 1, wherein a valve is arranged on a pipeline between the bottom of the sedimentation tank (9) and the feeding end of the ball mill (1).
4. A wet ball milling water separation treatment method for garbage, which is characterized by adopting the wet ball milling water separation treatment device for garbage according to any one of claims 1-3, comprising the following steps:
s1: delivering the garbage into a ball mill (1) for ball milling treatment;
s2: carrying out light-heavy separation on the ball-milled garbage by a sand-water separator (3) to separate light components, slurry and fine sand;
S3: the heavy objects separated by the sand-water separator (3) are repeatedly subjected to the step S1, and the separated light components, slurry and fine sand enter a double-shaft shredder to be shredded to be less than 30 mm, and then enter a slurry tank (5) for sedimentation treatment;
S4: the mixture of the scum and the bottom mud after the precipitation treatment is sent into a cyclone sand remover (7) through a slurry pump (6) to separate out heavy objects, then enters a spiral extrusion dehydrator to carry out filter pressing dehydration, the obtained filter residues are additionally treated, and the obtained filtrate enters a precipitation tank (9) to carry out precipitation and scum separation treatment;
S5: and (3) repeating the step (S1) of the concentrated filtrate after the sediment and the separation of the scum, the scum and the heavy objects separated by the cyclone sand remover (7), wherein the dilute filtrate after the sediment and the separation of the scum is fed into a sedimentation tank, and the step (S1) of the sediment of the sedimentation tank is repeated, so that the obtained clarified filtrate is treated with sewage.
5. The wet ball milling water separation treatment method for garbage according to claim 4, wherein in the step S4, a slurry pump (6) for conveying the mixture of the scum and the bottom mud to the cyclone sand remover (7) is arranged at the bottom of the slurry tank (5); a baffle plate (10) is arranged in the precipitation tank (9).
6. The wet ball milling water separation treatment method for garbage according to claim 4, wherein in step S5, a sludge pump (12) for conveying the bottom sludge to the ball mill (1) is provided at the bottom of the sedimentation tank (11).
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