CN215947069U - Farm excess sludge semi-drying equipment - Google Patents
Farm excess sludge semi-drying equipment Download PDFInfo
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- CN215947069U CN215947069U CN202122423008.7U CN202122423008U CN215947069U CN 215947069 U CN215947069 U CN 215947069U CN 202122423008 U CN202122423008 U CN 202122423008U CN 215947069 U CN215947069 U CN 215947069U
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Abstract
The utility model provides a half-drying device for surplus sludge in a farm, which comprises a drying cavity, a heating system, a spiral stirring device and a temperature and humidity sensor, wherein a spiral stirring blade of the spiral stirring device is arranged in the drying cavity; the spiral direction of the spiral stirring paddle is carried out towards the direction of the discharge port, the temperature and humidity sensor is arranged at the position of the exhaust port in the drying cavity, and the heating system heats and dries the drying cavity. The device is used for treating the sludge, the operation cost can be reduced by more than 80%, meanwhile, the sludge obtained by semi-drying is easy to compost after being mixed with the manure residues, organic fertilizer or organic nutrient soil is obtained, the environment of a pig farm is improved, and the resource utilization of solid waste is realized.
Description
Technical Field
The utility model belongs to the technical field of livestock production waste treatment equipment, and particularly relates to residual sludge semi-drying equipment for a farm.
Background
A large amount of liquid dung generated by the large-scale farm is treated by an industrial sewage treatment process, and is returned to the field to be consumed after reaching the agricultural irrigation water standard, and a large amount of residual sludge can be generated in the sewage treatment process. The water content of the excess sludge is generally up to more than 98%, and the commonly adopted process is to dehydrate the excess sludge by a screw stacking machine, wherein the water content of the dehydrated sludge is still more than 85%. After the sludge is mixed with the manure residue obtained after solid-liquid separation, the sludge has poor air permeability, cannot form piles and is difficult to compost because of large water content and more medicaments contained in the sludge. Therefore, it is necessary to primarily dry the sludge to reduce the water content to 65% or less. The sludge drying by the heating mode is a feasible and effective mode by combining the characteristics and the yield of water in the sludge.
At present, a plurality of sludge drying and semi-drying devices are common, the devices are mainly suitable for drying sludge and mainly comprise a belt type device, a blade type device, a vacuum rake type device and the like, the devices are mainly applied to municipal sludge treatment and industrial sewage treatment, and heat sources mainly comprise electric energy, waste heat of a hot air system of a power plant, steam and the like. But the main disadvantages are that the current sludge drying operation cost is high and the sludge drying is excessive.
At present, in the market, drying equipment which utilizes external energy sources such as tail gas, steam and the like of a power plant is almost used for removing all color, electric energy is used as a heat source, the running cost is 80-200kw/h, and meanwhile, the dried sludge needs to be further treated.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a farm residual sludge semi-drying device, which solves the technical problems of high sludge drying operation cost and excessive sludge drying in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme that:
the semi-drying equipment for the excess sludge in the farm comprises a drying cavity, a heating system, a spiral stirring device and a temperature and humidity sensor, wherein a spiral stirring blade of the spiral stirring device is arranged in the drying cavity, the head and the tail of the drying cavity are provided with a feeding hole and an exhaust hole, the tail of the drying cavity is provided with a discharging hole, and the discharging hole is positioned below the exhaust hole; the spiral direction of the spiral stirring paddle is carried out towards the direction of the discharge port, the temperature and humidity sensor is arranged at the position of the exhaust port in the drying cavity, and the heating system heats and dries the drying cavity.
According to the semi-drying equipment for the excess sludge in the farm, preferably, the heating system comprises a heating device and a heat conduction oil circulating pump, and the heat conduction oil circulating pump is communicated with the heating device.
Further, the heating system comprises a heating device and a heat conduction oil circulating pump, and the heat conduction oil circulating pump is communicated with the heating device.
The above semi-drying equipment for excess sludge in a farm preferably comprises a spiral stirring blade, a fixed shaft and a speed reducing motor, wherein the speed reducing motor is arranged outside the drying cavity, the spiral stirring blade is fixed on the fixed shaft and arranged in the drying cavity, one end of the fixed shaft is connected with the speed reducing motor, the other end of the fixed shaft is connected with a heat conducting oil pipeline of a heating system, and the fixed shaft in the drying cavity is hollow and is used for containing heating oil.
According to the semi-drying equipment for the excess sludge in the farm, preferably, the outer wall of the drying cavity is set to be a jacket, the jacket is hollow between two layers of walls and used for containing heat conducting oil, and a jacket oil inlet and a jacket oil outlet are formed in the outer side wall of the jacket on the outer wall; a fixed shaft oil inlet is formed in one end, close to the heating system, of the fixed shaft, and a fixed shaft oil outlet is formed in the other end of the fixed shaft; and the oil outlet of the fixed shaft is connected with the oil inlet of the jacket through a pipeline. Heat conducting oil enters from the oil inlet of the fixed shaft and flows out from the oil outlet of the jacket, so that the fixed shaft and the outer wall jacket are heated.
According to the semi-drying equipment for the excess sludge in the farm, preferably, the oil inlet of the jacket is arranged at the bottom of the outer side wall of the drying cavity, and the oil outlet of the jacket is arranged at the upper part of the outer side wall of the drying cavity.
In the above semi-drying equipment for excess sludge in a farm, preferably, two or more screw conveyors are provided and arranged in parallel.
In the above semi-drying device for excess sludge in a farm, preferably, a cooling system and a deodorizing system may be further provided at the outer end of the exhaust port as needed.
According to the utility model, the temperature and humidity sensor is arranged at the exhaust port and is communicated with the heating system and the spiral stirring device, and the drying degree of the material is determined according to the humidity and the temperature of the tail gas air, so that whether heating is stopped or started is judged.
The utility model has the beneficial effects that:
the semi-drying equipment for the excess sludge of the farm is used for treating the sludge, the operation cost can be reduced by more than 80%, meanwhile, the sludge obtained by semi-drying is easy to perform composting treatment after being mixed with the manure residues, organic fertilizers or organic nutrient soil are obtained, the environment of the pig farm is improved, and the resource utilization of solid waste is realized. The sludge drying operation cost can be reduced to the maximum extent, and the sludge is treated by utilizing the methane generated by the liquid dung as fuel, so that the purpose of waste treatment by waste is realized; the methane is effectively recycled.
The semi-drying equipment for the excess sludge in the farm can reduce the water content of the discharged sludge to about 65 percent, can realize continuous feeding and continuous discharging, does not need manual operation, can realize automatic control operation, can realize continuous sludge semi-drying, can greatly reduce the volume of the sludge, and the reduction range can reach more than 30 percent.
Drawings
FIG. 1 is a schematic diagram of a preferred structure of the present invention.
Description of reference numerals:
1: a drying chamber is arranged in the cavity body,
2: a feeding hole is arranged on the upper surface of the shell,
3: an air outlet is arranged on the air inlet,
4: a discharge hole is arranged on the bottom of the container,
5: a cooling system and a deodorizing system, wherein,
6: a helical stirring blade;
7: a fixed shaft is fixed on the upper end of the frame,
8: a speed-reducing motor is arranged on the front end of the motor,
9: a heating device is arranged on the base plate,
10: and a heat conducting oil circulating pump.
Detailed Description
The current pig farm has extremely low methane utilization rate, basically mainly uses torch combustion and natural emission, and few pig farms with methane power generation equipment and processes hardly start up due to low methane power generation efficiency; there are also a few ways of using biogas to heat boilers, heating water, and using hot water to heat biogas tanks. By adopting the utility model, the biogas resource is fully utilized, the sludge drying operation cost is reduced to the maximum extent, and the sludge is treated by utilizing the biogas generated by the liquid dung as the fuel, so that the purpose of preparing waste from waste is realized; the methane is effectively recycled. The sludge semi-drying in the utility model means that the water content of the discharged sludge is reduced to about 65% after the sludge is treated by equipment from the initial 85% to the final product, and the discharged sludge and the manure are subjected to composting treatment.
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
Example 1
The utility model provides a farm excess sludge semidrying equipment, as shown in figure 1, it includes dry cavity 1, a heating system, spiral agitating unit and temperature and humidity inductor, spiral agitating unit's spiral stirring paddle leaf is located in dry cavity 1, heating system heats in with dry cavity and carries out the drying, dry cavity 1 is semi-enclosed, feed inlet 2 has been seted up to dry cavity 1's head, gas vent 3, dry cavity 1's afterbody sets up discharge gate 4, spiral agitating paddle leaf's spiral direction goes on to discharge gate direction 4, the temperature and humidity inductor sets up the position of gas vent 3 in dry cavity, the outer end department of gas vent 3 still can be equipped with cooling system and deodorization system 5 as required.
The spiral stirring device comprises a spiral stirring blade 6, a fixed shaft 7 and a speed reducing motor 8, and the spiral stirring blade, the fixed shaft and the speed reducing motor form a spiral conveying device, so that sludge can be discharged towards the direction of the discharge hole. The speed reducing motor 8 can be arranged on the outer side of the drying cavity, the speed reducing motor 8 is connected with the control fixing shaft 7 to rotate, the spiral stirring blade 6 is fixed on the fixing shaft 7 and can be set to be a spiral blade, the spiral stirring blade 6 is arranged in the drying cavity 1, and the fixing shaft in the drying cavity 1 is hollow and used for containing heating oil. The outer wall of the drying cavity is set as a jacket, namely the space between two layers of walls is hollow, the hollow part is used for internally placing heat conducting oil, and a jacket oil inlet and a jacket oil outlet are formed in the outer side wall of the jacket; a fixed shaft oil inlet is formed in one end, close to the heating device, of the fixed shaft, and a fixed shaft oil outlet is formed in the other end of the fixed shaft; the oil outlet of the fixed shaft is connected with the oil inlet of the jacket through a pipeline; heat conduction oil enters from the oil inlet of the fixed shaft, and flows out from the oil outlet of the jacket, so that the heating circulation of the fixed shaft and the jacket on the outer wall is realized under the action of the heat conduction oil circulating pump. The spiral stirring blade obtains heat from the central shaft by means of metal heat transfer so as to heat the material.
The heating system comprises a heating device 9 and a heat-conducting oil circulating pump 10, wherein the heating device 9 can be an independent methane heating device or an independent electric heating device, and the methane heating device and the electric heating device can be arranged at the same time and can be freely converted for use. The heat device 9 is connected with a heat-conducting oil circulating pump 10, the heat-conducting oil circulating pump 10 is communicated with the fixed shaft and a jacket of the drying cavity through a pipeline, the heat-conducting oil mainly enters from an oil inlet of the fixed shaft, and then enters the jacket after coming out from an oil outlet of the fixed shaft, the oil inlet of the jacket below the tail part of the jacket enters the jacket, the oil outlet of the jacket at the upper part (2/3 part) of the head part of the drying cavity flows out and enters the heat-conducting oil circulating pump, and then the methane heating device 9 and/or the electric heating device are used for heating, so that a circulation is formed.
Preferably, the spiral stirring devices can also be provided in two or more, parallel arrangement.
Preferably, the methane heating device adopts a methane boiler, and the methane boiler and the drying equipment are integrated; electric heating is used as an aid for preparing unstable biogas output in winter; the temperature range of the heat conducting oil is between 150 ℃ and 300 ℃, and the temperature setting range of the equipment during operation is between 100 ℃ and 150 ℃. When the equipment runs, the drying cavity is in a semi-closed state, and the sludge inlet, the sludge outlet and the exhaust port are opened; the air outlet is externally connected with an air cooling system and a deodorization system.
When the equipment is in operation, the reduction of the water content of the sludge can be accelerated in a discharging back mixing mode; after the material that will partly dry mixes with wet material, the water content of material totality obtains diluting on the one hand, and on the other hand dry material mixes the back with wet material, breaks up original gelatinous paste mud, is favorable to improving the heated area of wet material for the evaporation of water.
The temperature and humidity sensor is mainly connected with the speed reducing motor, the heat conducting oil circulating pump and the methane starting device to realize automatic control; when the water content of the sludge is higher than a certain value, the biogas heating is started, and the speed reducing motor and the hot oil circulating system are started; when the temperature in the drying cavity is higher than a certain temperature, the circulating pump and the heating are suspended, the heat exchange time is prolonged, and the power consumption is reduced.
Utilize this utility model equipment to handle mud, can reduce the working costs more than 80%, the mud that the while semi-drying obtained, after mixing with the excrement sediment, easily compost is handled, obtains fertilizer or organic nutrient soil, improves the environment in pig farm, realizes the utilization of solid useless resources.
The utility model has the advantages that: 1. biogas is used as a heat source, 2, the sludge drying degree is low, the retention time in the drying cavity is short, and the treatment capacity is large; 3. can be continuously fed and continuously discharged; 4. the automatic control operation can be realized without manual operation.
Claims (9)
1. The semi-drying equipment for the excess sludge in the farm is characterized by comprising a drying cavity, a heating system, a spiral stirring device and a temperature and humidity sensor, wherein a spiral stirring blade of the spiral stirring device is arranged in the drying cavity, the head and the tail of the drying cavity are provided with a feeding hole and an exhaust hole, the tail of the drying cavity is provided with a discharging hole, and the discharging hole is positioned below the exhaust hole; the spiral direction of the spiral stirring paddle is carried out towards the direction of the discharge port, the temperature and humidity sensor is arranged at the position of the exhaust port in the drying cavity, and the heating system heats and dries the drying cavity.
2. The semi-drying equipment for excess sludge in a farm according to claim 1, wherein the heating system comprises a heating device and a heat conduction oil circulating pump, and the heat conduction oil circulating pump is communicated with the heating device.
3. The semi-drying equipment for excess sludge in a farm according to claim 2, wherein the heating device is a methane heating device and/or an electric heating device.
4. The semi-drying equipment for the excess sludge in the farm according to claim 2, wherein the spiral stirring device comprises a spiral stirring blade, a fixed shaft and a speed reducing motor, the speed reducing motor is arranged outside the drying cavity, the spiral stirring blade is fixed on the fixed shaft and arranged in the drying cavity, one end of the fixed shaft is connected with the speed reducing motor, and the other end of the fixed shaft is connected with a heat conducting oil pipeline of the heating system.
5. The semi-drying equipment for the residual sludge in the farm according to claim 4, wherein the outer wall of the drying cavity is set to be a jacket, the jacket is hollow between two layers of walls, and a jacket oil inlet and a jacket oil outlet are formed in the outer side wall of the jacket; a fixed shaft oil inlet is formed in one end, close to the heating system, of the fixed shaft, and a fixed shaft oil outlet is formed in the other end of the fixed shaft; and the oil outlet of the fixed shaft is connected with the oil inlet of the jacket through a pipeline.
6. The semi-drying equipment for excess sludge in a farm according to claim 5, wherein the jacket oil inlet is formed in the bottom of the outer side wall of the drying cavity, the jacket oil outlet is formed in the 2/3, close to the upper portion, of the outer side wall of the drying cavity, and the jacket oil outlet is communicated with a conduction oil circulating pump through a pipeline.
7. The semi-drying equipment for excess sludge in a farm according to claim 1, wherein two or more of the helical stirring devices are provided and arranged in parallel.
8. The semi-drying equipment for excess sludge in a farm according to claim 1, wherein the drying cavity is a cylinder or a semi-cylinder with a circular bottom.
9. The semi-drying apparatus for surplus sludge in a farm according to claim 1, wherein a cooling system and a deodorizing system are provided at an outer end of the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122423008.7U CN215947069U (en) | 2021-10-09 | 2021-10-09 | Farm excess sludge semi-drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122423008.7U CN215947069U (en) | 2021-10-09 | 2021-10-09 | Farm excess sludge semi-drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215947069U true CN215947069U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122423008.7U Active CN215947069U (en) | 2021-10-09 | 2021-10-09 | Farm excess sludge semi-drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215947069U (en) |
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2021
- 2021-10-09 CN CN202122423008.7U patent/CN215947069U/en active Active
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