CN210367401U - Integrated sludge drying and reducing device - Google Patents
Integrated sludge drying and reducing device Download PDFInfo
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- CN210367401U CN210367401U CN201920673879.4U CN201920673879U CN210367401U CN 210367401 U CN210367401 U CN 210367401U CN 201920673879 U CN201920673879 U CN 201920673879U CN 210367401 U CN210367401 U CN 210367401U
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Abstract
The utility model discloses a sludge drying decrement device integrates belongs to sludge treatment equipment technical field. The utility model discloses a guipure formula sludge drying machine, shell and tube heat exchanger, dust collector, water cooler, catch water, filter equipment, spray column, defroster, UV photodissociation reactor and hydroxyl reaction tower. The utility model discloses an energy cyclic utilization's mode, the heat energy that the solar energy that collects dry tail gas and heat exchanger surface solar energy collection coating turns into is as shell and tube heat exchanger's heat source, to removing dust, steam-water separation, filtering and spray the dry air after the purification and heat, let in it again to the mud drying-machine in to through UV photodissociation and micro-nano bubble generating device's organic combination, realized getting rid of the synthesis of macromolecule and micro-molecule organic matter, improved tail gas purification efficiency. The utility model discloses greatly improve the energy utilization of equipment and rateed, reduced manufacturing cost.
Description
Technical Field
The utility model relates to a sludge drying decrement device integrates belongs to sludge treatment equipment technical field.
Background
With the continuous acceleration of the urbanization process, China can generate huge amounts of municipal domestic sludge and industrial sludge every year. With the annual increase of the amount of sludge, the sludge treatment process gradually becomes diversified, such as sludge drying and incineration, sludge drying and landfill or sludge fertilizer.
In recent years, the new trend of zero emission and high efficiency in the environmental protection field marks the improvement of the requirement of harmless sludge reduction, and the drying treatment process needs to realize low-cost operation on the basis of ensuring the drying treatment effect of the sludge.
SUMMERY OF THE UTILITY MODEL
To the environmental requirement trend of zero release and high efficiency, the utility model provides a sludge drying decrement treatment facility that resource utilization efficiency is high.
The integrated sludge drying and reducing device comprises a mesh belt type sludge dryer, a tube type heat exchanger, a dust removal device, a water cooler, a steam-water separator, a filtering device, a spray tower, a demister, a UV photolysis reactor and a hydroxyl reaction tower; the mesh belt type sludge dryer is in bidirectional connection with the tube type heat exchanger; the dust removal device is respectively connected with a waste heat outlet of the tube type heat exchanger and an inlet of the water cooler; cooling water of the water cooler can be taken from the cooling tower; the water cooler is connected with a steam-water separator to separate gas and liquid into two phases; liquid is conveyed to a filtering device through a pipeline, and gas is conveyed to a spray tower; the spray tower is provided with air from the lower part and air from the top, and pall ring packing is arranged inside the spray tower; demisting wires are arranged in the demister and used for filtering acid and oily gases in the tail gas; the bottom of the hydroxyl reaction tower is provided with a micro-nano bubble generator, the micro-nano bubble generator is connected with an ozone generator through a pipeline, and a circulating water pipeline is arranged inside the hydroxyl reaction tower and is connected with the hydroxyl reaction tower through a circulating pump; the exhaust end of the hydroxyl reaction tower is connected with a fresh air inlet of the tube type heat exchanger, and gas exhausted from the hydroxyl reaction tower is used as an object for heating the tube type heat exchanger.
In one embodiment of the present invention, a plurality of layers of fillers are disposed in the filtering device, and the fillers are pebbles, ceramsite, zeolite, and quartz sand from bottom to top; the filtering device is connected with the spray tower through a pump and a pipeline.
In an embodiment of the present invention, an activated carbon layer is disposed near the outlet of the hydroxyl reaction tower for adsorbing the residual odor.
In one embodiment of the utility model, a material distributor is arranged at the material port of the mesh belt type sludge dryer, so that the discharged material of the material distributor can directly enter the mesh belt type sludge dryer; a plurality of groups of mesh belt transmission devices are arranged in the mesh belt type sludge dryer, the end parts of the adjacent mesh belt transmission devices are staggered, the discharging position of the upper group of mesh belt transmission devices corresponds to the feeding position of the lower group of mesh belt transmission devices, and the projection of the movement path of the sludge on the mesh belt in the direction vertical to the mesh belt transmission is S-shaped; the mesh belt type sludge dryer is provided with a hot air inlet and a hot air outlet; the hot air inlet is arranged at the lower part of the dryer, and the hot air outlet is arranged at the upper part of the dryer; the hot air inlet is connected with the fresh air outlet of the tube type heat exchanger through a pipeline.
In one embodiment of the present invention, the bottom of the tube type heat exchanger is provided with a waste heat outlet, and is connected with the dust removing device through a pipeline; the top of the heat exchanger is provided with a waste heat inlet which is communicated with a hot air outlet of the mesh belt type sludge dryer, and the fresh air inlet and the fresh air outlet on the tubular heat exchanger are arranged in the area between the waste heat outlet and the top end of the heat exchanger and can be arranged on the same side wall, so that the waste heat inlet and the fresh air outlet are conveniently communicated with the mesh belt type sludge dryer; the heat exchanger is internally provided with a tube array, the tube array is arranged along the vertical direction, and the top of the tube array is flush with the highest position of the fresh air outlet; the lowest part of the tube array is flush with the highest position of the waste heat outlet; the outer side wall of the tubular heat exchanger is coated with a solar heat collecting coating, and a black chromium coating or a black nickel coating can be selected.
In one embodiment of the present invention, a plurality of rows of UV lamps perpendicular to the air inlet direction are disposed inside the UV photolysis reactor, and two adjacent rows of UV lamps are arranged in a staggered manner to disturb the entering air; the UV lamp tube is a straight tube or a U-shaped tube, and the lamp holder is a ceramic lamp holder, so that the phenomenon that a metal or plastic lamp holder is easy to age due to photolysis reaction is avoided; the TiO is2The photocatalytic plate is vertical to the air inlet direction, and air holes are distributed on the plate; a plurality of TiO blocks which are parallel to each other are arranged in the atomizer2The photocatalysis board divides the interior of the demister into a plurality of layer areas, and the top of each layer area is provided with an atomizing spray head.
The utility model discloses an in an embodiment, the inherent top of defroster sets up spray line, and the bottom sets up sewage pipes, is convenient for wash, the blowdown to the defogging silk.
In an embodiment of the present invention, the dust removing device can be an impact dust remover or a particle layer dust remover.
In an embodiment of the present invention, the steam-water separator is a cyclone-type steam-water separator.
In an embodiment of the present invention, the defogging wires are a stainless steel wire mesh and a PP wire mesh.
The utility model has the advantages of as follows:
1. the utility model utilizes the exhausted damp and hot air by arranging the tube type heat exchanger; through setting up solar energy collection coating, turn into solar energy heat energy, utilize the heat of damp and hot air itself to heat the new trend.
2. The utility model discloses an energy cyclic utilization's mode, the heat energy that turns into the solar energy that dry tail gas and heat exchanger surface solar energy collection coating collected heats the dry air after removing dust, vapor-water separation, filtration and spraying purification as tubular heat exchanger's heat source, lets in it again to the sludge drying machine in, only needs to mend very little fresh air can realize hot-blast inner loop process. The water brought out along with the tail gas is subjected to steam-water separation and filtration, and the filtered clear liquid can be partially used as a spraying reaction liquid solvent required by a spray tower for a spraying process, so that water circulation is realized.
3. The utility model is made of TiO2The photocatalysis plate and the UV lamp tube realize strong photocatalysis effect; and through the organic combination of UV photodissociation and micro-nano bubble generating device, the comprehensive removal of macromolecular and micromolecular organic matters is realized, and the tail gas purification efficiency is improved.
4. The utility model discloses still make the improvement to the detailed defect of traditional equipment, include: pall ring packing is added in the spray tower to enhance the mass transfer efficiency in the tower; the lamp holder of the UV lamp tube is replaced by the ceramic lamp holder instead of the traditional lamp holder made of metal (copper), so that the service life of the lamp tube is prolonged, and the aging of the lamp tube caused by the oxidation environment inside the photolysis reactor is effectively avoided.
5. The utility model discloses greatly improve the energy utilization of equipment and rateed, reduced manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of an integrated sludge drying and reducing device of the present invention;
FIG. 2 is a front view of the tube type heat exchanger of the integrated sludge drying and reducing device of the present invention;
FIG. 3 is a left side view of the tube type heat exchanger of the integrated sludge drying and reducing device of the present invention;
FIG. 4 is a cross-sectional view along A-A' of the tube type heat exchanger of the integrated sludge drying and reducing device of the present invention;
FIG. 5 is a schematic structural view of a UV photolysis reactor of the integrated sludge drying and reducing device of the present invention;
wherein, 1, the mesh belt type sludge dryer; 2, a shell and tube heat exchanger; 3, a dust removal device; 4, a water cooler; 5, a steam-water separator; 6, a filtering device; 7, a spray tower; 8, a demister; 9, a UV photolysis reactor; 10, a hydroxyl reaction tower; 21, a fresh air outlet; 22, a waste heat outlet; 23, a waste heat inlet; 24, a fresh air inlet, 25 and a tube array; 91, UV lamp tube; 92, an atomizer; 93, TiO2A photocatalytic plate; 94, waste liquid valve.
Detailed Description
To achieve the above objects, features and advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the integrated sludge drying and reducing device of the present invention comprises a mesh belt type sludge dryer 1, a tubular heat exchanger 2, a dust removing device 3, a water cooler 4, a steam-water separator 5, a filtering device 6, a spray tower 7, a demister 8, a UV photolysis reactor 9 and a hydroxyl reaction tower 10; the mesh belt type sludge dryer 1 is in bidirectional connection with the tube type heat exchanger 2; the dust removing device 3 can be an impact dust remover or a particle layer dust remover; the dust removal device 3 is respectively connected with the waste heat outlet 22 of the tube type heat exchanger 2 and the inlet of the water cooler 4; the water cooler 4 and the steam-water separator 5 are two-stage steam-water separation devices, and effluent is respectively connected with the filtering device 6; cooling water for the water cooler 4 can be taken from the cooling tower; the water cooler 4 is connected with a steam-water separator 5, a cyclone steam-water separator can be selected, and gas and liquid are respectively conveyed to next-stage treatment equipment under the negative pressure action of a vacuum pump; the liquid is conveyed to a filtering device 6 through a pipeline, and the gas is conveyed to a spray tower 7; an exhaust pipeline of the filtering device 6 is communicated with an air inlet of the spray tower 7; the liquid outlet pipe of the filtering device is communicated with the liquid storage device of the spray tower 7 through a pipeline; the spray tower 7 is provided with air from the lower part and air from the top, and pall ring packing is arranged in the spray tower for improving the mass transfer efficiency in the spray tower; a stainless steel wire net and a PP wire net are arranged in the demister 9 and are used for filtering acid and oily gases in tail gas; the bottom of the hydroxyl reaction tower 10 is provided with a micro-nano bubble generator, the micro-nano bubble generator is connected with an ozone generator through a pipeline, a circulating water pipeline is arranged in the hydroxyl reaction tower and is connected through a circulating pump, so that liquid in the reaction tower can be recycled, and the utilization rate of water resources in the reaction tower is improved; the exhaust end of the hydroxyl reaction tower is connected with a fresh air inlet 24 of the tube type heat exchanger 2 and is used as a heating object of the tube type heat exchanger.
Furthermore, a plurality of layers of fillers are arranged in the filtering device 6 and sequentially comprise pebbles, ceramsite, zeolite and quartz sand from bottom to top; the filtering device 6 is connected with a spray tower 7 through a pump and a pipeline.
Further, an activated carbon layer is arranged at a position close to the outlet of the hydroxyl reaction tower 8 and is used for adsorbing residual gas with peculiar smell.
Furthermore, a material distributor is arranged at a material port of the mesh belt type sludge dryer, so that the discharged material of the material distributor can directly enter the mesh belt type sludge dryer 1; a plurality of groups of mesh belt transmission devices are arranged in the mesh belt type sludge dryer, the end parts of the adjacent mesh belt transmission devices are staggered, the discharging position of the upper group of mesh belt transmission devices corresponds to the feeding position of the lower group of mesh belt transmission devices, and the projection of the movement path of the sludge on the mesh belt in the direction vertical to the mesh belt transmission is S-shaped; the mesh belt type sludge dryer is provided with a hot air inlet and a hot air outlet; the hot air inlet is arranged at the lower part of the dryer, and the hot air outlet is arranged at the upper part of the dryer; the hot air inlet is connected with a fresh air outlet 21 of the tube type heat exchanger through a pipeline.
Further, a waste heat outlet 22 is arranged at the bottom of the tube type heat exchanger 2 and is connected with the dust removal device 3 through a pipeline; the top of the heat exchanger is provided with a waste heat inlet 23 which is communicated with a hot air outlet of the mesh-belt sludge dryer, and a fresh air inlet 24 and a fresh air outlet 21 on the tube type heat exchanger are arranged in the area between the waste heat outlet 22 and the top end of the heat exchanger and can be arranged on the same side wall, so that the waste heat inlet is conveniently communicated with the mesh-belt sludge dryer; the tubes 25 are arranged in the heat exchanger, the tubes 25 are arranged in the vertical direction, and the top of the tubes 25 is flush with the highest position of the fresh air outlet 21; the lowest part of the tube array is flush with the highest position of the waste heat outlet 22; the outer side wall of the tubular heat exchanger is coated with a solar heat collection coating, a black chromium coating or a black nickel coating can be selected, and the hot air can be heated by utilizing natural energy in an efficient and environment-friendly manner.
Furthermore, a plurality of rows of UV lamp tubes 91 perpendicular to the air inlet direction are arranged in the UV photolysis reactor 9, and two adjacent rows of UV lamp tubes are arranged in a staggered manner to disturb the entering air; the UV lamp tube 91 can be a straight tube or a U-shaped tube, and the lamp holder is a ceramic lamp holder, so that the phenomenon that a metal or plastic lamp holder is easy to age due to photolysis reaction is avoided; the TiO is2The photocatalytic plate 93 is perpendicular to the air inlet direction, and air is distributed on the plateAn aperture; a plurality of TiO2 photocatalytic plates 93 which are parallel to each other are arranged in the atomizer, the interior of the demister is divided into a plurality of layer areas, and the top of each layer area is provided with an atomizing nozzle 92;
further, a spraying pipeline is arranged at the top of the demister 8, and a sewage discharge pipeline is arranged at the bottom of the demister, so that the demisting wires can be cleaned and discharged conveniently.
The utility model discloses a theory of operation does: the sludge enters the mesh belt type sludge drying machine 1 from the material distributor, the hot air is introduced from the air inlet below the mesh belt type sludge drying machine to exchange heat with the wet sludge moving along with the mesh belt transmission mechanism, the moisture of the wet sludge is taken away, and the wet air containing the moisture is discharged from the air outlet above the mesh belt type sludge drying machine under the action of the fan. The exhausted damp and hot air enters from a waste heat inlet 23 at the top of the heat exchanger, passes through the tubes 25 and heats the tubes 25, and finally is exhausted from a waste heat outlet 22. The solar heat collection coating arranged on the side wall of the tubular heat exchanger 2 is converted into heat energy by absorbing solar energy, and plays a role in heating the heat exchanger, so that the heat exchanger keeps higher temperature, and the loss of heat energy is reduced. The air discharged from the waste heat outlet 22 is dedusted by the dedusting device 3, and then is separated from the liquid by the water cooler 4 and the steam-water separator 5. The separated gas enters a spray tower 7 from the bottom of the spray tower 7, the liquid is filtered into tiny particles through a filtering device 6, one part of the filtered liquid is used as a solvent and is introduced into the spray tower 7, and the other part of the filtered liquid is used for the subsequent wastewater nitrogen and phosphorus removal process; the gas introduced into the spray tower 7 from the steam-water separator 5 is sprayed with an alkaline or weakly alkaline solution through the spray tower 7 to adsorb acidic gas including HCl in the hot and humid air. The air treated by the spray tower 7 enters a demister 8, and is adsorbed by the stainless steel wire mesh and the PP wire mesh to form oily gas and a small amount of residual acid gas. The gas treated by the demister enters a UV photolysis reactor 9 and undergoes UV light and TiO2Under the strong catalytic action of the catalyst, macromolecular organic matters in the gas are decomposed by UV photolysis. When the concentration of the macromolecular organic matters is higher, H is atomized by an atomizer2O2Atomizing, releasing the atomized water in the UV photolysis reactor 3 through an atomizing nozzle 92 to ensure that the humidity in the reactor reaches 30-65 percent, and further carrying out atomization treatmentEnhancing the efficiency of photolytic reactions. The waste valve 34 is opened while the atomizer is operating to facilitate the flow of the products formed by the photolytic reaction. The gas after the photolysis reaction enters the hydroxyl reaction tower 10, the micro-nano bubble generator forms micro-nano bubbles, liquid with a large amount of micro-nano bubbles is released in the hydroxyl reaction tower, small molecular organic matters in the gas entering the hydroxyl reaction tower are decomposed through the cavitation of the micro-nano bubbles, if necessary, the ozone generating device is started, the micro-nano bubble generator releases the micro-nano bubbles containing ozone, and the decomposition efficiency of the small molecular organic matters is enhanced through the oxidation of the ozone. Under the drive of the induced draft fan, the treated tail gas is absorbed by the activated carbon layer, filtered and discharged after peculiar smell, then is introduced into a fresh air inlet 54 of the tube type heat exchanger 2 under the action of the pump, is heated by the area where the tube array 25 is positioned, leaves from a fresh air outlet 21, and is returned to the mesh belt type sludge dryer 1.
The protection scope of the present invention is not limited to the above embodiments, and any modifications, equivalent replacements, and improvements that can be made by a person skilled in the art within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The integrated sludge drying and reducing device is characterized by comprising a mesh belt type sludge dryer, a tube type heat exchanger, a dust removal device, a water cooler, a steam-water separator, a filtering device, a spray tower, a demister, a UV photolysis reactor and a hydroxyl reaction tower; the mesh belt type sludge dryer is in bidirectional connection with the tube type heat exchanger; the dust removal device is respectively connected with a waste heat outlet of the tube type heat exchanger and an inlet of the water cooler; the dust removal device can be an impact dust remover or a particle layer dust remover; the rear part of the water cooler is connected with a steam-water separator, gas and liquid are divided into two phases, the liquid is conveyed to a filtering device through a pipeline, and the gas is conveyed to a spray tower; the spray tower is provided with air from the lower part and air from the top, and pall ring packing is arranged inside the spray tower; demisting wires are arranged in the demister; the bottom of the hydroxyl reaction tower is provided with a micro-nano bubble generator, the micro-nano bubble generator is connected with an ozone generator through a pipeline, and a circulating water pipeline is arranged inside the hydroxyl reaction tower and is connected with the hydroxyl reaction tower through a circulating pump; the exhaust end of the hydroxyl reaction tower is connected with a fresh air inlet of the tube type heat exchanger.
2. The integrated sludge drying and reducing device as claimed in claim 1, wherein a material distributor is arranged at a material port of the mesh belt type sludge dryer; a plurality of groups of mesh belt transmission devices are arranged in the mesh belt type sludge dryer, the end parts of the adjacent mesh belt transmission devices are staggered, the discharging position of the upper group of mesh belt transmission devices corresponds to the feeding position of the lower group of mesh belt transmission devices, and the projection of the movement path of the sludge on the mesh belt in the direction vertical to the mesh belt transmission is S-shaped; the mesh belt type sludge dryer is provided with a hot air inlet and a hot air outlet; the hot air inlet is arranged at the lower part of the dryer, and the hot air outlet is arranged at the upper part of the dryer; the hot air inlet is connected with the fresh air outlet of the tube type heat exchanger through a pipeline.
3. The integrated sludge drying and reducing device according to claim 1, wherein a waste heat outlet is arranged at the bottom of the tube type heat exchanger and is connected with a dust removal device through a pipeline; the top of the heat exchanger is provided with a waste heat inlet which is communicated with a hot air outlet of the mesh belt type sludge dryer, and a fresh air inlet and a fresh air outlet on the tube type heat exchanger are arranged in a region between the waste heat outlet and the top end of the heat exchanger; the top of the tube array is flush with the highest position of the fresh air outlet, and the lowest part of the tube array is flush with the highest position of the waste heat outlet; the outer side wall of the tubular heat exchanger is coated with a solar heat collection coating, and the solar heat collection coating is a black chromium coating or a black nickel coating.
4. The integrated sludge drying and reducing device according to claim 1, wherein a plurality of rows of UV lamp tubes perpendicular to the air inlet direction are arranged in the UV photolysis reactor, and two adjacent rows of UV lamp tubes are arranged in a staggered manner; the UV lamp tube is a straight tube or a U-shaped tube, and the lamp holder is a ceramic lamp holder; TiO is also arranged in the UV photolysis reactor2A photocatalytic plate; the TiO is2Photocatalytic plateAir holes are distributed on the plate and are vertical to the air inlet direction; the atomizer is internally provided with a plurality of TiO2 photocatalytic plates which are parallel to each other, the interior of the demister is divided into a plurality of layer areas, and the top of each layer area is provided with an atomizing nozzle.
5. The integrated sludge drying and reducing device according to claim 1, wherein a plurality of layers of fillers are arranged in the filtering device, and the fillers are pebbles, ceramsite, zeolite and quartz sand from bottom to top in sequence; the filtering device is connected with the spray tower through a pump and a pipeline.
6. The integrated sludge drying and reducing device as claimed in claim 1, wherein an activated carbon layer is disposed near the outlet of the hydroxyl reaction tower.
7. The integrated sludge drying and reducing device as claimed in claim 1, wherein the demister is internally provided with a spray pipeline at the top and a sewage pipeline at the bottom.
8. The integrated sludge drying and reducing device according to claim 1, wherein the dust removing device is an impact dust remover or a particle layer dust remover.
9. The integrated sludge drying and reducing device according to claim 1, wherein the steam-water separator is a cyclone-type steam-water separator.
10. The integrated sludge drying and reducing device according to claim 1, wherein the defogging wires are a stainless steel wire mesh and a PP wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920673879.4U CN210367401U (en) | 2019-05-13 | 2019-05-13 | Integrated sludge drying and reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920673879.4U CN210367401U (en) | 2019-05-13 | 2019-05-13 | Integrated sludge drying and reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210367401U true CN210367401U (en) | 2020-04-21 |
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ID=70260747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920673879.4U Active CN210367401U (en) | 2019-05-13 | 2019-05-13 | Integrated sludge drying and reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210367401U (en) |
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2019
- 2019-05-13 CN CN201920673879.4U patent/CN210367401U/en active Active
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