CN210140526U - Energy-saving sludge freeze dehydration system - Google Patents
Energy-saving sludge freeze dehydration system Download PDFInfo
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- CN210140526U CN210140526U CN201920486143.6U CN201920486143U CN210140526U CN 210140526 U CN210140526 U CN 210140526U CN 201920486143 U CN201920486143 U CN 201920486143U CN 210140526 U CN210140526 U CN 210140526U
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Abstract
The utility model discloses an energy-saving sludge freeze dehydration system, which comprises a refrigerating unit, a freezing tank, a thawing tank, a cold accumulation tank, a heat accumulation tank, a control system and a filter pressing device, wherein the cold accumulation tank is connected with the refrigerating unit through a first stainless steel heat preservation and refrigeration pipeline, the cold accumulation tank is connected with the freezing tank through a second stainless steel heat preservation and refrigeration pipeline, and the heat accumulation tank is connected with the refrigerating unit through a first stainless steel heat preservation and heating pipeline, the freezing tank of the utility model takes refrigerating fluid as a heat exchange medium, and thawing takes water as a thawing medium, compared with the freezing and thawing of air medium in a refrigeration house, the speed can be improved by 5-10 times, the operation efficiency is greatly improved, the night cold accumulation and heat accumulation process is adopted, the energy consumption can be well reduced through the electricity price difference of the peak valley level, the maximum energy consumption can be reduced by about 40 percent, and the sludge treatment in long-term operation is, and an automatic production line is adopted, so that the labor intensity of personnel and the labor cost are reduced.
Description
Technical Field
The utility model relates to a mud freeze dehydration system, in particular to energy-saving mud freeze dehydration system belongs to sludge treatment technical field.
Background
Sludge is a by-product formed during the biochemical treatment of sewage. Generally, the sludge not only has high water content and high organic matter content, but also contains a large amount of pathogenic bacteria, parasites and other toxic and harmful substances which are difficult to degrade, such as heavy metals, and the like, so that the proper treatment of the sludge is always a very concerned research subject in all countries in the world at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-saving sludge freeze dehydration system has solved at present, when dehydrating mud, need carry out freezing and unfreezing many times to mud usually, and consequently the energy of this process, the consumption of time is great, and if mud moisture content is too big, because the specific heat capacity of water is very big, compares with the mud that the moisture content is low, and energy consumption and time consumption also further strengthen, and degree of automation is low, the easy contaminated air's of peculiar smell that produces among the dehydration process problem.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to an energy-saving sludge freeze dehydration system, including refrigerating unit, freezing groove, the groove of unfreezing, cold-storage tank, heat accumulation groove, control system and filter-pressing equipment, cold-storage tank and refrigerating unit are through first stainless steel heat preservation refrigeration pipe connection, the cold-storage tank passes through second stainless steel heat preservation refrigeration pipe connection with the freezing groove, the heat accumulation tank heats the pipe connection through first stainless steel heat preservation with refrigerating unit, the heat accumulation tank heats the pipe connection through second stainless steel heat preservation with the groove of unfreezing.
As an optimal technical scheme of the utility model, be equipped with the cryogenic cycle pump on the stainless steel heat preservation pipeline of refrigeration of second, be equipped with the water pump on the stainless steel heat preservation pipeline of heating of second, be provided with first filter on the stainless steel heat preservation pipeline of refrigeration, be provided with the second filter on the stainless steel heat preservation pipeline of heating.
As a preferred technical scheme of the utility model, control system sets up on refrigerating unit, control system comprises touch-sensitive screen, PLC module, converter, ac contactor, relay, temperature sensor and pressure sensor, touch-sensitive screen, converter, ac contactor, relay, temperature sensor and pressure sensor all with PLC module electric connection.
As a preferred technical scheme of the utility model, the inside and outside wall of cold-storage tank and heat accumulation groove all adopts stainless steel or cold-rolled sheet welding to form, the peripheral fixedly connected with vibrating device of freezing groove, vibrating device is a vibrator.
As a preferred technical scheme of the utility model, the peripheral fixedly connected with refrigeration pipeline of freezing groove, refrigeration pipeline passes the upper end of freezing groove and extends to the lower extreme of freezing groove, the equal fixed connection in both ends of refrigeration pipeline is on refrigerating unit, the refrigeration pipeline density of freezing groove upper end is big than the refrigeration pipeline density of freezing groove lower extreme.
As an optimal technical scheme of the utility model, be equipped with the heat preservation that thickness is 50-100mm between the outer wall in the cold-storage tank, be equipped with the heat preservation that thickness is 50mm between the outer wall in the heat storage tank.
As a preferred technical scheme of the utility model, the inside packing of cold-storage tank has the cold-storage material, the inside packing of heat-storage tank has water.
As the utility model discloses a preferred technical scheme, groove one side that unfreezes is equipped with filter-pressing equipment, freezing groove one side, filter-pressing equipment one side, freezing groove and unfreeze between the groove and unfreeze between groove and the filter-pressing equipment all be equipped with autoloading discharge apparatus, autoloading discharge apparatus is a screw conveyer, filter-pressing equipment is a spiral shell formula sludge dewaterer that folds.
The utility model discloses the beneficial effect who reaches is:
1. the freezing tank uses cold storage materials as heat exchange media, unfreezes and uses water as unfreezing media, compared with air media freezing and unfreezing in a refrigeration house, the speed can be improved by 5-10 times, and the operation efficiency is greatly improved.
2. By adopting the night cold and heat accumulation process and the electricity price difference of the peak valley level, the energy consumption can be well reduced, about 40 percent of the energy consumption can be reduced to the maximum extent, and the method has great benefit for sludge treatment running for a long time.
3. And an automatic production line is adopted, so that the labor intensity of personnel and the labor cost are reduced.
4. Under the low-temperature treatment, the taste in the sludge dehydration process is greatly inhibited, and the secondary air pollution emission in the dehydration process is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a block diagram of the control system of the present invention.
In the figure: 1. a refrigeration unit; 2. a freezing tank; 3. a thawing tank; 4. a cold storage tank; 5. a heat storage tank; 6. a first stainless steel heat-insulating refrigeration pipeline; 7. an automatic feeding and discharging device; 8. a control system; 81. a touch screen; 82. a PLC module; 83. a frequency converter; 84. an AC contactor; 85. a relay; 86. a temperature sensor; 87. a pressure sensor; 9. a second stainless steel heat-preservation refrigeration pipeline; 10. a first stainless steel heat-insulating heating pipeline; 11. the second stainless steel heat-preservation heating pipeline; 12. a low temperature circulation pump; 13. a first filter; 14. a water pump; 15. a filter pressing device; 16. a second filter; 17. a vibrating device; 18. a refrigeration pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): as shown in fig. 1-2, the utility model relates to an energy-saving sludge freeze dehydration system, including refrigerating unit 1, freezing groove 2, the groove 3 that unfreezes, cold-storage tank 4, heat accumulation tank 5, control system 8 and filter-pressing equipment 15, cold-storage tank 4 is connected through first stainless steel heat preservation pipeline 6 with refrigerating unit 1, cold-storage tank 4 is connected through second stainless steel heat preservation pipeline 9 with freezing groove 2, heat accumulation tank 5 is connected through first stainless steel heat preservation pipeline 10 with refrigerating unit 1, heat accumulation tank 5 is connected through second stainless steel heat preservation pipeline 11 with the groove 3 that unfreezes.
A low-temperature circulating pump 12 is arranged on the second stainless steel heat-preservation refrigerating pipeline 9, a water pump 14 is arranged on the second stainless steel heat-preservation heating pipeline 11, a first filter 13 is arranged on the first stainless steel heat-preservation refrigerating pipeline 6, a second filter 16 is arranged on the first stainless steel heat-preservation heating pipeline 10, a control system 8 is arranged on the refrigerating unit 1, the control system 8 consists of a touch screen 81, a PLC module 82, a frequency converter 83, an AC contactor 84, a relay 85, a temperature sensor 86 and a pressure sensor 87, the touch screen 81, the frequency converter 83, the AC contactor 84, the relay 85, the temperature sensor 86 and the pressure sensor 87 are electrically connected with the PLC module 82, the inner and outer walls of the cold storage tank 4 and the heat storage tank 5 are formed by welding stainless steel or cold rolling plates, a vibrating device 17 is fixedly connected to the periphery of the refrigerating tank 2, the vibrating device 17 is a vibrator, the refrigerating pipeline 18 is fixedly connected to the periphery of the, the refrigerating pipeline 18 passes through the upper end of the freezing tank 2 and extends to the lower end of the freezing tank 2, the density of the refrigerating pipeline 18 at the upper end of the freezing tank 2 is higher than that of the refrigerating pipeline 18 at the lower end of the freezing tank 2, and the heat dissipation effect of the upper end of the freezing tank 2 is higher than that of the lower end of the freezing tank 2, so that more refrigerating pipelines 18 need to be arranged at the upper end of the freezing tank 2 to ensure the refrigerating effect of the freezing tank 2.
A heat preservation layer with the thickness of 50-100mm is arranged between the inner wall and the outer wall of the cold storage tank 4, a heat preservation layer with the thickness of 50mm is arranged between the inner wall and the outer wall of the heat storage tank 5, cold storage materials are filled in the cold storage tank 4, water is filled in the heat storage tank 5, a filter pressing device 15 is arranged on one side of the thawing tank 3, an automatic feeding and discharging device 7 is arranged on one side of the freezing tank 2, one side of the filter pressing device 15, between the freezing tank 2 and the thawing tank 3 and between the thawing tank 3 and the filter pressing device 15, the automatic feeding and discharging device 7 is a screw conveyor, and the filter pressing device 15 is a.
Specifically, when the utility model is used, the refrigerating unit 1 adopts two units or a system above two units according to the design of the specific sludge freezing amount, firstly, the reliability is ensured, secondly, the valley bottom electric refrigeration cold accumulation of the unit capable of utilizing the night peak valley flat electricity price is ensured, the flat section and peak section cost is saved, generally, the valley bottom electric refrigeration cold accumulation of the unit capable of utilizing the night peak valley flat electricity price is ensured, the refrigerating unit 1 utilizes the cold energy of the valley bottom electric refrigeration to be stored in the cold accumulation groove 4, the all-weather thawing heat demand is provided through the night low-cost electricity charge heat accumulation, when in work, the LS100-1250 type automatic feeding and discharging device 7 conveys the sludge to be dehydrated to the inside of the freezing groove 2, the cold accumulation groove 4 conveys the cold accumulation material to the inside of the freezing groove 2 through a second stainless steel heat preservation refrigerating pipeline 9 and a low-temperature circulating pump 12, the sludge is frozen, the internal water in the sludge is changed into the, during the freezing process, the GL41H type first filter 13 and the LZF-3 type vibration device 17 start to work, the GL41H type first filter 13 filters impurities in the returned cold storage material, the LZF-3 type vibration device 17 is convenient for the sludge to fall off from the freezing tank 2, then the frozen sludge is put into the unfreezing tank 3, the heat storage tank 5 conveys hot water to the interior of the unfreezing tank 3 through the second stainless steel heat preservation and heating pipeline 11 and the water pump 14 to unfreeze the sludge, during the unfreezing process, the GL41H type second filter 16 starts to work to filter the impurities in the returned water, and then the unfrozen sludge is guided into the HDL-202 type filter pressing equipment 15 by the LS100-1250 type automatic feeding and discharging device 7 to be subjected to filter pressing, so as to remove the moisture in the sludge, the control system 8 of the utility model comprises a touch screen 81, a PLC module 82, an MM420 type frequency converter 83, an LC1-5011 type AC contactor 84, and an HDL-type AC contactor 15, The TK-029-13A type relay 85, the WRM2-101 type temperature sensor 86 and the S-11 type pressure sensor 87 can be operated on the touch screen 81 in the whole process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an energy-saving sludge freeze dehydration system, its characterized in that, includes refrigerating unit (1), freezing groove (2), unfreezes groove (3), cold-storage tank (4), heat accumulation groove (5), control system (8) and filter pressing equipment (15), cold-storage tank (4) are connected through first stainless steel heat preservation refrigerating pipeline (6) with refrigerating unit (1), cold-storage tank (4) are connected through second stainless steel heat preservation refrigerating pipeline (9) with freezing groove (2), heat accumulation groove (5) are connected through first stainless steel heat preservation heating pipeline (10) with refrigerating unit (1), heat accumulation groove (5) are connected through second stainless steel heat preservation heating pipeline (11) with unfreezing groove (3).
2. The energy-saving sludge freeze-dehydration system according to claim 1, wherein a low-temperature circulating pump (12) is arranged on the second stainless steel heat-preservation refrigeration pipeline (9), a water pump (14) is arranged on the second stainless steel heat-preservation heating pipeline (11), a first filter (13) is arranged on the first stainless steel heat-preservation refrigeration pipeline (6), and a second filter (16) is arranged on the first stainless steel heat-preservation heating pipeline (10).
3. The energy-saving sludge freeze-dehydration system according to claim 1, wherein the control system (8) is arranged on the refrigerating unit (1), the control system (8) is composed of a touch screen (81), a PLC module (82), a frequency converter (83), an AC contactor (84), a relay (85), a temperature sensor (86) and a pressure sensor (87), and the touch screen (81), the frequency converter (83), the AC contactor (84), the relay (85), the temperature sensor (86) and the pressure sensor (87) are all electrically connected with the PLC module (82).
4. The energy-saving sludge freeze-dehydration system according to claim 1, characterized in that the inner and outer walls of the cold storage tank (4) and the heat storage tank (5) are welded by stainless steel or cold rolled plates, the periphery of the freezing tank (2) is fixedly connected with a vibration device (17), and the vibration device (17) is a vibrator.
5. The energy-saving sludge freeze-dehydration system according to claim 1, characterized in that a refrigeration pipeline (18) is fixedly connected to the periphery of the freezing tank (2), the refrigeration pipeline (18) passes through the upper end of the freezing tank (2) and extends to the lower end of the freezing tank (2), and the density of the refrigeration pipeline (18) at the upper end of the freezing tank (2) is higher than that of the refrigeration pipeline (18) at the lower end of the freezing tank (2).
6. The energy-saving sludge freeze-dehydration system according to claim 1, characterized in that a heat insulation layer with a thickness of 50-100mm is arranged between the inner wall and the outer wall of the cold storage tank (4), and a heat insulation layer with a thickness of 50mm is arranged between the inner wall and the outer wall of the heat storage tank (5).
7. An energy-saving sludge freeze-drying system according to claim 1, wherein the inside of the cold storage tank (4) is filled with cold storage material, and the inside of the heat storage tank (5) is filled with water.
8. The energy-saving sludge freeze-dehydration system according to claim 1, wherein a filter pressing device (15) is arranged on one side of the thawing tank (3), an automatic feeding and discharging device (7) is arranged on one side of the freezing tank (2), one side of the filter pressing device (15), between the freezing tank (2) and the thawing tank (3) and between the thawing tank (3) and the filter pressing device (15), the automatic feeding and discharging device (7) is a screw conveyor, and the filter pressing device (15) is a stacked screw type sludge dehydrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486143.6U CN210140526U (en) | 2019-04-11 | 2019-04-11 | Energy-saving sludge freeze dehydration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920486143.6U CN210140526U (en) | 2019-04-11 | 2019-04-11 | Energy-saving sludge freeze dehydration system |
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| CN210140526U true CN210140526U (en) | 2020-03-13 |
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| CN201920486143.6U Active CN210140526U (en) | 2019-04-11 | 2019-04-11 | Energy-saving sludge freeze dehydration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200290A (en) * | 2022-07-04 | 2022-10-18 | 珠海格力电器股份有限公司 | Refrigerator control method and refrigerator |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200290A (en) * | 2022-07-04 | 2022-10-18 | 珠海格力电器股份有限公司 | Refrigerator control method and refrigerator |
| CN115200290B (en) * | 2022-07-04 | 2023-10-27 | 珠海格力电器股份有限公司 | Control method of refrigerator and refrigerator |
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