CN210113264U - Drying system for sludge and cultivation waste - Google Patents
Drying system for sludge and cultivation waste Download PDFInfo
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- CN210113264U CN210113264U CN201920559025.3U CN201920559025U CN210113264U CN 210113264 U CN210113264 U CN 210113264U CN 201920559025 U CN201920559025 U CN 201920559025U CN 210113264 U CN210113264 U CN 210113264U
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- cultivation waste
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Abstract
The utility model discloses a drying system for sludge and cultivation waste, which comprises a pretreatment tank, a pyrolysis tank, a cooling tank and a filter press which are connected in turn by a pipeline and a sludge and cultivation waste pump; stirring devices are arranged in the pretreatment tank, the high-temperature cracking tank and the cooling tank; the pyrolysis tank is provided with an air inlet and is connected with an oxygen supply device through a booster pump, the pyrolysis tank is provided with a thermometer and a pressure gauge, and the cooling tank is provided with a thermometer.
Description
Technical Field
The utility model relates to a mud and breed discarded object decrement mummification technical field especially relate to a mud and breed mummification system of discarded object.
Background
The rapid development of the large-scale and intensive breeding industry leads to the great increase of the quantity of the livestock and poultry manure, so that environmental problems of different degrees appear in partial areas of China; the research on the potential of the livestock and poultry manure resource utilization is vital to the realization of the resource utilization of the livestock and poultry manure and the sustainable development of the livestock and poultry breeding industry; the total amount of livestock and poultry manure resources in China reaches 623.00 million t, wherein the proportion of pig manure is the largest and reaches 36.71 percent of the total amount of the livestock and poultry manure, the energy conversion efficiency of the livestock and poultry manure is 43.85 to 71.99 percent, and the energy utilization potential of thermochemical conversion is high. Livestock manure is limited by its own properties such as high moisture and high ash content, and is directly and separately combusted rarely successfully.
The sludge and cultivation waste treatment technology is still in the beginning stage of China, and has the phenomena of insufficient basic data, numerous process technology routes, lack of design, construction and management experience and the like. Domestic and foreign sludge and cultivation waste treatment and disposal methods are numerous, and different treatment and disposal methods such as concentration, digestion, dehydration, drying, incineration, composting and landfill are generally adopted. However, the sludge and cultivation waste treatment needs to realize the four-transformation, and the specific contents are as follows: firstly, stabilizing, namely stopping degradation of the sludge and the cultivation waste through treatment to stabilize the sludge and the cultivation waste so as to avoid secondary pollution; secondly, harmlessness is realized, and parasitic ova and pathogenic microorganisms are killed; thirdly, the volume of the sludge and the culture waste for final disposal is reduced, and the cost for the sludge and the culture waste for treatment and final disposal is reduced; and fourthly, recycling, and achieving the purposes of turning harm into benefit, recycling and protecting the environment while treating the sludge and the culture waste.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a mummification system of mud and breed discarded object aims at solving current mud and breed the discarded object and handle the minimizing effect not enough, and mud and breed discarded object contain the microorganism intracellular water treatment effect poor, bring huge pressure's problem for follow-up mud and breed discarded object drying process.
In order to achieve the above object, the utility model provides a following technical scheme: a sludge and cultivation waste drying system comprises a pretreatment tank, a high-temperature cracking tank, a cooling tank and a filter press which are sequentially connected through a pipeline and a sludge and cultivation waste pump; stirring devices are arranged in the pretreatment tank, the high-temperature cracking tank and the cooling tank; the pyrolysis tank is provided with an air inlet and is connected with an oxygen supply device through a booster pump, the pyrolysis tank is provided with a thermometer and a pressure gauge, and the cooling tank is provided with a thermometer.
Preferably, the pyrolysis tank and the pretreatment tank are connected with a preheating tank through a pipeline, sludge and a culture waste pump, a heat exchange coil is installed in the preheating tank, a heat exchange coil is installed in the cooling tank, and the heat exchange coil of the preheating tank is connected with the heat exchange coil of the cooling tank through a circulating pump in a closed loop mode.
Preferably, the high-temperature cracking tank is internally provided with a heat exchange coil and connected with hot steam equipment.
Preferably, a jacking type side descaling scraper is installed in the preheating tank.
Preferably, a mud bucket is arranged below a mud outlet of the filter press, a sewage outlet of the filter press is discharged into a sewage tank through a water pump, and a water outlet is arranged on the upper layer of the sewage tank and is connected into the pretreatment tank through the water pump.
Preferably, the oxygen supply device is a dewar tank filled with liquid oxygen and pumped into the pyrolysis tank.
The utility model has the advantages that: the cell walls of organisms such as bacteria and the like are damaged, intracellular water is released, favorable conditions are created for further reducing the water content of sludge and culture waste through filter pressing, and the device has the effects of high efficiency and energy conservation.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
As shown in fig. 1, a sludge and cultivation waste drying system comprises a pretreatment tank 1, a pyrolysis tank 3, a cooling tank 4 and a filter press 5 which are connected in sequence through a pipeline, a sludge and cultivation waste pump; stirring devices 6 are arranged in the pretreatment tank 1, the high-temperature cracking tank 3 and the cooling tank 4; the oxygen supply device 7 is a Dewar tank filled with liquid oxygen, and the oxygen enters the pyrolysis tank 3 through the pressure regulating device.
The pyrolysis tank 3 is provided with a thermometer and a pressure gauge, and the cooling tank is provided with a thermometer; the pyrolysis tank 3 and the pretreatment tank 1 are also connected with a preheating tank 2 through a pipeline, a sludge pump and a culture waste pump, a heat exchange coil 8 is installed in the preheating tank 2, a heat exchange coil 8 is installed in the cooling tank 4, the heat exchange coil 8 of the preheating tank 2 is connected with the heat exchange coil 8 of the cooling tank 4 through a circulating pump in a closed loop manner, and a desalting water pipe is externally connected with the closed loop pipeline to pre-add desalting water; a heat exchange coil 8 is arranged in the high-temperature cracking tank 3 and connected with hot steam equipment;
a mud bucket is arranged below a mud outlet of the filter press 5, a sewage outlet of the filter press 5 is discharged into a sewage tank 10 through a water pump, and a water outlet is arranged on the upper layer of the sewage tank 10 and is connected into the pretreatment tank 1 through the water pump.
The drying method comprises the following steps:
cutting sludge to be treated and breeding waste (normal temperature, water content is more than or equal to 80%), feeding into a pretreatment tank 1, adding a scale remover, adding water, and stirring by using a stirring device 6; after the pretreated sludge and cultivation waste are preheated (the sludge and the cultivation waste are cooled by the high-temperature section through the heat exchange coil 8 of the preheating tank 2 and the heat exchange coil 8 of the cooling tank 4, two sections of liquid-liquid heat exchangers are connected through a pipeline and a circulating pump, and the sludge entering the high-temperature cracking tank is heated by using the part of energy), the sludge and the cultivation waste are pumped into the high-temperature cracking tank 3 to be heated to a temperature higher than 120 ℃ and a pressure higher than 0.4MPa, oxygen is introduced into the Dewar tank filled with liquid oxygen, and cell walls of the sludge and the cultivation waste are cracked in the high-temperature high-pressure oxygen-containing state, so that water in microbial cells in the sludge and the cultivation waste is released; pumping the sludge and the cultivation waste subjected to high-temperature cracking into a cooling tank 4 for cooling, and realizing waste heat recovery of the cooling tank 4 through a closed loop of a heat exchange coil 8 and a heat exchange coil 8 in a preheating tank 2 to realize a preheating step; and finally, carrying out filter pressing on the cooled sludge and the culture waste (the water content of a mud cake is less than or equal to 50%) by using a filter press 5, sending most of sewage generated by the filter pressing to a pretreatment tank 1 for recycling, and treating a small part of sewage in a sewage plant.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (6)
1. A drying system for sludge and cultivation waste is characterized by comprising a pretreatment tank (1), a pyrolysis tank (3), a cooling tank (4) and a filter press (5) which are sequentially connected through a pipeline and a sludge pump; stirring devices (6) are arranged in the pretreatment tank (1), the pyrolysis tank (3) and the cooling tank (4); the oxygen supply device (7) is connected with the pyrolysis tank (3) through the air inlet by the pressure adjusting device, the thermometer and the pressure gauge are installed on the pyrolysis tank (3), and the thermometer is installed on the cooling tank.
2. The drying system for the sludge and the cultivation waste as claimed in claim 1, wherein the pyrolysis tank (3) and the pretreatment tank (1) are further connected with a preheating tank (2) through a pipeline and a sludge pump, a heat exchange coil (8) is installed in the preheating tank (2), a heat exchange coil (8) is installed in the cooling tank (4), and the heat exchange coil (8) of the preheating tank (2) is connected with the heat exchange coil (8) of the cooling tank (4) through a circulating pump in a closed loop manner.
3. The drying system for sludge and cultivation waste as claimed in claim 1, wherein the pyrolysis tank (3) is provided with a heat exchange coil (8) and connected with a hot steam device.
4. The drying system for sludge and cultivation waste as claimed in claim 2, wherein the preheating tank (2) is provided with a top-in type side descaling scraper (9).
5. The drying system for sludge and cultivation waste as claimed in claim 1, wherein a mud bucket is arranged below a sludge outlet of the filter press (5), a sewage outlet of the filter press (5) is discharged into the sewage tank (10) through a water pump, and a water outlet is arranged on the upper layer of the sewage tank (10) and is connected into the pretreatment tank (1) through the water pump.
6. The drying system for sludge and cultivation waste as claimed in claim 1, wherein the oxygen supply device (7) is a Dewar tank filled with liquid oxygen, and the Dewar tank enters the pyrolysis tank (3) through a pressure regulating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559025.3U CN210113264U (en) | 2019-04-23 | 2019-04-23 | Drying system for sludge and cultivation waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559025.3U CN210113264U (en) | 2019-04-23 | 2019-04-23 | Drying system for sludge and cultivation waste |
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| Publication Number | Publication Date |
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| CN210113264U true CN210113264U (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920559025.3U Active CN210113264U (en) | 2019-04-23 | 2019-04-23 | Drying system for sludge and cultivation waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204165A (en) * | 2019-04-23 | 2019-09-06 | 浙江程润环保工程有限公司 | The anhydration system and drying method of a kind of sludge and breeding waste |
-
2019
- 2019-04-23 CN CN201920559025.3U patent/CN210113264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204165A (en) * | 2019-04-23 | 2019-09-06 | 浙江程润环保工程有限公司 | The anhydration system and drying method of a kind of sludge and breeding waste |
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