CN217912134U - Kitchen waste pyrohydrolysis device - Google Patents
Kitchen waste pyrohydrolysis device Download PDFInfo
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- CN217912134U CN217912134U CN202220707903.3U CN202220707903U CN217912134U CN 217912134 U CN217912134 U CN 217912134U CN 202220707903 U CN202220707903 U CN 202220707903U CN 217912134 U CN217912134 U CN 217912134U
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Abstract
The utility model relates to a kitchen waste pyrohydrolysis device. The device comprises: a feed balancing section configured to receive the material and control the pressure therein to a desired value; the feeding port of the thermal hydrolysis tank is disconnected and controllably connected with the feeding balance joint, and the discharging port of the thermal hydrolysis tank is disconnected and controllably connected with the discharging balance joint and is configured to carry out constant-pressure pyrolysis; and the discharging balance joint is configured to receive the material pyrolyzed in the thermal hydrolysis tank and control the pressure in the thermal hydrolysis tank to be a required value. The utility model provides a scheme can realize rubbish and carry out the preliminary treatment through continuous type pyrohydrolysis mode, overcomes the not enough of batch production, and convenient automated production can improve production efficiency.
Description
Technical Field
The utility model relates to a solid useless processing technology field, concretely relates to kitchen waste pyrohydrolysis device.
Background
The kitchen waste is an important component of household waste and comprises food residues generated in the life of residents and fruit and vegetable waste from farmer markets. The kitchen waste has the characteristics of high water content, high organic matter content, high salt content, easy decay and the like, contains a large amount of pathogenic microorganisms such as salmonella and staphylococcus aureus, can breed pests such as flies and mosquitoes, and seriously affects the body health and the environmental sanitation of residents. Then the kitchen waste contains rich organic matters, and has great potential for resource utilization. The resource utilization of the kitchen waste is an important way for improving the recycling rate of domestic waste in China and an important way for assisting the carbon peaking and carbon neutralization in China. The kitchen waste is subjected to resource treatment, and the first link is to remove impurities through pre-sorting treatment and separate the impurities to obtain recyclable substances.
At present, the pretreatment technology of kitchen waste mainly comprises manual separation, mechanical crushing and screening. The pretreatment of kitchen waste by means of pyrohydrolysis is reported. After the kitchen waste is subjected to thermal hydrolysis treatment, organic matters and water in the waste are broken and dissolved out, microorganisms and ova on the surface of the kitchen waste can be killed in a high-temperature process, and the kitchen waste can be subjected to resource treatment by combining an anaerobic fermentation process and the like while harmlessness and reduction of the kitchen waste are completed. The pyrohydrolysis is used as a pretreatment technology of kitchen garbage, and can effectively replace the sorting, crushing and screening processes.
The pyrohydrolysis device who is applied to other organic waste gas processing at present mainly is intermittent type formula production mode, and this process is during for carrying into pyrohydrolysis jar with a certain amount of kitchen garbage, under temperature and pressure condition predetermineeing, keeps certain time, and the pyrohydrolysis jar is decompressed the back, carries the next section processing procedure with kitchen garbage. The production mode has the advantages of complex control procedure, low steam recovery utilization rate, high potential safety production hazard, intermittent sequencing batch generation mode and low garbage treatment efficiency.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims at providing a surplus rubbish pyrohydrolysis device in kitchen to realize rubbish and carry out the preliminary treatment through continuous type pyrohydrolysis mode, overcome the not enough of formula production of preface, widen the application condition of pyrohydrolysis technique in the aspect of the rubbish pretreatment in kitchen.
The utility model discloses at first provide a surplus rubbish pyrohydrolysis device in kitchen, the device includes:
a feed balancing section configured to receive the material and control the pressure therein to a desired value;
the feeding port of the thermal hydrolysis tank is disconnected and controllably connected with the feeding balance joint, and the discharging port of the thermal hydrolysis tank is disconnected and controllably connected with the discharging balance joint and is configured to carry out constant-pressure pyrolysis;
and the discharging balance joint is configured to receive the material pyrolyzed in the thermal hydrolysis tank and control the pressure in the thermal hydrolysis tank to be a required value.
According to the utility model discloses an embodiment, the device still includes the balance tank, the balance tank includes two air inlets, these two air inlets respectively with the balanced festival of feeding with the balanced festival of ejection of compact is disconnected controllable and is connected, the balance tank is steel pressure vessel, and the balance tank sets up the pressure release mouth, and the jar internal pressure risees after communicating with feeding, the balanced festival of ejection of compact, through pressure release mouth pressure release to ordinary pressure before the intercommunication next time.
According to the utility model discloses an embodiment, the volume of compensating tank does the volumetric 10 times of balanced festival of feeding reaches more than.
According to the utility model discloses an embodiment, the balanced festival of feeding is connected through first ooff valve the feed inlet of pyrohydrolysis jar.
According to the utility model discloses an embodiment, the balanced festival of feeding is through first stop valve the pyrohydrolysis jar is connected, first stop valve is configured to can adjust the pressure that is connected both sides for equal.
According to the utility model discloses an embodiment, the balanced festival of ejection of compact is connected through the second ooff valve the discharge gate of pyrohydrolysis jar.
According to the utility model discloses an embodiment, the balanced festival of ejection of compact pass through the second stop valve with the pyrohydrolysis jar is connected, the second stop valve is configured to can adjust the pressure that is connected both sides for equal.
According to the utility model discloses an embodiment, the pyrohydrolysis jar is horizontal pyrohydrolysis jar.
According to the utility model discloses an embodiment, be equipped with screw conveyor in the pyrohydrolysis jar to from one side conveying pyrolysis material to the opposite side in the pyrohydrolysis jar.
According to the utility model discloses an embodiment, the device still includes feeding storage material festival and ejection of compact storage material festival, feeding storage material festival is disconnected controllable connection the balanced feed inlet of festival of feeding.
According to the utility model discloses an embodiment, ejection of compact storage festival is disconnected controllable connection the balanced festival of ejection of compact discharge gate.
According to the utility model discloses an embodiment, the device still includes feeding conveyor and ejection of compact conveyer, feeding conveyor connects the entry of feeding storage festival, ejection of compact conveyer is connected the export of ejection of compact storage festival.
The utility model discloses still provide a method according to kitchen garbage pyrohydrolysis device carry out the pyrolysis, the method includes:
pyrolyzing the materials through a constant pressure pyrohydrolysis tank;
the method comprises the following steps that a pressure-adjustable feeding balance joint is arranged before feeding of a thermal hydrolysis tank to adjust materials to a required value, so that the materials with proper pressure are input into the thermal hydrolysis tank from the feeding balance joint to be pyrolyzed;
the material is adjusted to a required value by arranging the pressure adjustable discharging balance joint after the discharging of the thermal hydrolysis tank, so that the material with proper pressure is output from the discharging balance joint.
According to the utility model discloses an embodiment, the method still includes:
the air inlet of the balance tank is respectively connected with the feeding balance joint and the discharging balance joint so as to reduce the pressure of the feeding balance joint and the discharging balance joint to a preset value.
According to the utility model discloses an embodiment, the method still includes:
connecting the feeding balance joint with the thermal hydrolysis tank through a first stop valve, and opening the first stop valve to enable the pressure on two sides of the connection to be equal;
connecting the discharging balance joint and the thermal hydrolysis tank through a second stop valve, and opening the second stop valve to enable the pressure on two sides of the connection to be equal;
preferably, the method further comprises: the thermal hydrolysis temperature is 100-180 deg.C, pressure is 0.07-1.0MPa, and time is 10-60min; more preferably, a spiral input mechanism is arranged in the thermal hydrolysis tank, the diameter of the spiral is 0.5-1.5m, the rotating speed is 0-10r/min, and the filling coefficient is 0.3-0.5;
preferably, the method further comprises: the design pressure of a feeding switch valve and a discharging switch valve of the thermal hydrolysis tank is 0.4-1.4MPa, the volume of the balance tank is more than 10 times of the volume of a feeding balance joint, and the design pressure of the balance tank is 1.0MPa.
The utility model discloses to pressurize, pressurize process control in the balanced festival of feeding, with pressurize, pressure release flash process control in the balanced festival of ejection of compact, guaranteed that the pyrohydrolysis jar can realize the continuous business turn over material of constant voltage, the overall process feeding transport can continuous operation, has overcome the not enough of preface formula production, makes things convenient for automated production, can improve production efficiency, has widened the application condition of pyrohydrolysis technique in the aspect of the rubbish preliminary treatment that remains in kitchen.
Drawings
Fig. 1 is a schematic structural view of a pyrohydrolysis apparatus according to an embodiment of the present invention;
reference numerals:
1. feeding conveyor, 2, third stop valve, 3, fourth stop valve, 4, balance tank, 5, first stop valve, 6, feeding storage section, 7, feeding balance section, 8, feeding storage section switch valve, 9, first switch valve, 10, second stop valve, 11, pyrohydrolysis tank, 12, steam inlet, 13, discharging balance section, 14, second switch valve, 15, discharging storage section, 16, discharging storage section switch valve, 17, discharging conveyor.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solutions of the present invention.
The utility model provides a scheme can realize rubbish and carry out the preliminary treatment through continuous type pyrohydrolysis mode, overcomes the not enough of batch production, and convenient automated production can improve production efficiency.
In the mainstream pyrohydrolysis technology, a pyrohydrolysis tank needs to go through the processes of pressurization, pressure maintaining and pressure relief flash evaporation, namely, the pyrohydrolysis tank is pressurized after feeding, the pressure maintaining process is used for pyrohydrolysis, the flash evaporation is completed in the pressure relief process, the discharging is completed after the pressure relief, and then a round of feeding and discharging circulation is started. The utility model discloses to pressurize, pressurize process control in the balanced festival of feeding, with pressurize, pressure release flash process control in the balanced festival of ejection of compact, guaranteed that the pyrohydrolysis jar can realize the continuous business turn over material of constant voltage, the overall process feeding is carried and can continuous operation.
The utility model relates to an embodiment provides a kitchen garbage continuous type pyrohydrolysis device, include:
a feed balancing section configured to receive the material and control the pressure therein to a desired value;
the feeding port of the thermal hydrolysis tank is disconnected and controllably connected with the feeding balance joint, and the discharging port of the thermal hydrolysis tank is disconnected and controllably connected with the discharging balance joint and is configured to carry out constant-pressure pyrolysis;
and the discharging balance joint is configured to receive the material pyrolyzed in the thermal hydrolysis tank and control the pressure in the thermal hydrolysis tank to be a required value.
The disconnection between adjacent devices in the scheme can be realized through a programmable valve.
The program control valve is a cut-off valve driven by pneumatic or hydraulic modes.
According to an embodiment of the utility model, the device further comprises a balance tank, the balance tank comprises two air inlets which are respectively in controllable connection with the feeding balance joint and the discharging balance joint, the balance tank is a steel pressure container, the balance tank is provided with a pressure relief opening, the pressure in the balance tank is increased after the balance tank is communicated with the feeding balance joint and the discharging balance joint, and the pressure is relieved to normal pressure through the pressure relief opening before the balance tank is communicated next time; preferably, the volume of the balancing tank is 10 times or more the volume of the feed balancing section.
According to one embodiment of the utility model, the feeding balance joint is connected with the feeding hole of the thermal hydrolysis tank through a first switch valve; the feed balance joint is connected with the thermal hydrolysis tank through a first stop valve, and the first stop valve is configured to adjust the pressure on two sides of the connection to be equal.
According to an embodiment of the present invention, the discharging balance section is connected to the discharging port of the thermal hydrolysis tank through a second switch valve; the discharge balance joint is connected with the thermal hydrolysis tank through a second stop valve, and the second stop valve is configured to adjust the pressure on two sides of the connection to be equal.
According to an embodiment of the present invention, the thermal hydrolysis tank is a horizontal thermal hydrolysis tank; preferably, a screw conveying mechanism is arranged in the thermal hydrolysis tank to convey the pyrolysis materials from one side to the other side in the thermal hydrolysis tank.
According to an implementation mode of the utility model, the device also comprises a feeding storage section and a discharging storage section, wherein the feeding storage section is disconnected and controllably connected with a feeding hole of the feeding balance section; the discharging and storing section is connected with the discharging port of the discharging balance section in a breaking and controllable manner.
According to the utility model discloses an embodiment, the device still includes feeding conveyor and ejection of compact conveyer, feeding conveyor connects the entry of feeding storage festival, ejection of compact conveyer connects the export of ejection of compact storage festival.
According to the utility model discloses an embodiment, as shown in fig. 1, a rubbish from cooking continuous type pyrohydrolysis device, including feeding conveyer 1, feeding storage festival 6, feeding balance festival 7, horizontal pyrohydrolysis jar 11, the balanced festival 13 of ejection of compact, ejection of compact storage festival 15, ejection of compact conveyer 17 and balance tank 4.
The top of the thermal hydrolysis tank 11 is provided with a feed inlet and a communicating port which is in gas communication with the feed balance joint 7 and the discharge balance joint 13.
The bottom of the thermal hydrolysis tank 11 is provided with a plurality of discharge holes and steam inlets 12.
The interior of the thermal hydrolysis tank 11 is provided with a screw conveying mechanism.
A conveying passage from the feeding conveyor 1 to a feeding hole of the thermal hydrolysis tank 11 is provided with a feeding storage joint 6 and a feeding balance joint 7.
A conveying passage from the discharging conveyor 17 to a discharging port of the thermal hydrolysis tank 11 is provided with a discharging balance joint 13 and a discharging storage joint 15.
The feeding and storing section 6, the feeding balance section 7, the discharging balance section 13 and the discharging and storing section 15 are of steel round or rectangular cylinder structures, one end of the cylinder is open and provided with a connecting flange, and the other end of the cylinder is provided with a switch valve;
the cylinder bodies of the feeding storage section 6 and the feeding balance section 7 are arranged on the upper part, and the switch valve is arranged on the lower part.
The discharging balance section 13 and the discharging storage section 15 are arranged at the lower part of the cylinder body, and the switch valve is arranged at the upper part.
2 communication ports at the top of the thermal hydrolysis tank 11 are respectively connected with the feeding balance joint 7 and the discharging balance joint 13, and a first stop valve and a second stop valve are arranged on the connecting pipeline;
4 tops of balance tank are equipped with 2 air inlets, and the air inlet is connected with balanced 7 sections of feeding and the balanced section 13 of ejection of compact respectively, is equipped with third stop valve 2 and fourth stop valve 3 on the connecting tube.
The balance tank 4 is a steel pressure vessel, is provided with 1 pressure relief opening, and the pressure in the tank rises after being communicated with the feeding and discharging balance section, and is relieved to normal pressure through the pressure relief valve before being communicated next time.
In the horizontal pyrohydrolysis tank, the steam inlet 12 tangentially admits air along the bottom of the tank, and a plurality of air inlets are axially arranged along the tank, so that the steam is evenly introduced.
In the horizontal type pyrohydrolysis tank, the spiral conveying mechanism conveys kitchen waste in the tank from the feeding hole to the discharging hole, and the spiral in the process drives the kitchen waste to turn over, so that the kitchen waste and steam are uniformly mixed, and the pyrohydrolysis reaction is more complete.
In the horizontal pyrohydrolysis tank, the tank top is provided with a pressure and temperature detection device to monitor the working condition in the tank in real time.
Other structures of devices such as a thermal hydrolysis tank can be realized by adopting the prior art, and are not described in detail herein.
The utility model discloses an embodiment still further provides a kitchen garbage's processing method, contains the following step:
1) When the temperature and the pressure in the horizontal pyrohydrolysis tank reach set values, the switch valve and the stop valve are all closed, and the feeding conveyor waits for a feeding signal to be in an initial state;
2) Starting the feeding conveyor, starting feeding, continuously working the feeding conveyor until the whole treatment line is stopped, and continuously receiving materials in a feeding and storage section; opening a switching valve of a feeding and storing section, finishing the preset feeding amount in a feeding balance section, and closing the switching valve of the feeding and storing section;
3) The first stop valve is opened, and after the feeding balance joint and the horizontal type thermal hydrolysis tank are in equal pressure, the first stop valve is closed;
4) Opening a first switch valve, enabling the materials in the feeding balance joint to vertically fall into a horizontal type pyrohydrolysis tank, and closing the first switch valve;
5) The third stop valve is opened, and after the pressure in the feeding balance joint is reduced to be below 70kPa, the third stop valve is closed, and one feeding cycle is finished;
6) And starting the discharging conveyor to discharge, and continuously working the discharging conveyor until the whole treatment line is stopped. The second stop valve is opened, and after the discharging balance joint and the horizontal type thermal hydrolysis tank have equal pressure, the second stop valve is closed;
7) The second switch valve is opened, the preset feeding amount is completed in the discharging balance section, and the second switch valve is closed;
8) The fourth stop valve is opened, and the fourth stop valve is closed after the pressure in the discharging balance joint is reduced to be lower than 70 kPa;
9) Opening a discharging and storing section switch valve, finishing preset feeding amount in a discharging and storing section, closing the discharging and storing section switch valve, and finishing a discharging cycle;
in the above treatment method, the thermal hydrolysis temperature is 100-180 ℃, the pressure is 0.07-1.0MPa, the time is 10-60min, the diameter of the helix in the tank is 0.5-1.5m, the rotating speed is 0-10r/min, and the filling coefficient of the helix of the material in the thermal hydrolysis tank is 0.3-0.5.
In the treatment method, steam in the balance tank is used as a preheating or flushing water temperature-rising heat source of the horizontal type thermal hydrolysis tank, the steam recovery rate is improved, and the steam is subjected to deodorization treatment after heat exchange and then is discharged after reaching the standard.
In the treatment method, after the kitchen waste is subjected to thermal hydrolysis treatment, organic matters in the kitchen waste are broken and dissolved out, microorganisms and ova on the surface of the kitchen waste are killed, and the kitchen waste can be subjected to anaerobic fermentation and the like to realize recycling treatment of the kitchen waste while harmlessness and reduction of the kitchen waste are completed.
In the treatment method, the feeding conveyor and the discharging conveyor continuously convey materials, the conveying capacity is matched with the spiral conveying capacity of the horizontal pyrohydrolysis tank, the whole process from the feeding conveyor to the discharging conveyor is sealed, and odor diffusion and slurry leakage are controlled.
In the treatment method, the designed pressure of the feeding switch valve and the discharging switch valve is 0.4-1.4MPa, the valve parts can resist the temperature of 200 ℃, and the sealing rings are replaced regularly as wearing parts.
In the processing method, the stop valve is controlled to ensure that the spaces at two sides of the switch valve have no pressure difference, so that the abrasion of the sealing ring in the opening and closing process of the switch valve is reduced, and the service life of the switch valve is prolonged.
In the treatment method, the volume of the balance tank is more than 10 times of the volume of the feeding balance joint, and the design pressure of the balance tank is 1.0MPa.
The steps of the method are not all necessarily arranged and can be adjusted according to needs.
The utility model has the advantages of as follows:
(1) Realizes continuous feeding and discharging, reduces the operation difficulty of the treatment process and improves the treatment efficiency.
(2) The automation degree is high, unattended operation can be realized on site, and manpower resources are saved.
(3) The harmless treatment of the kitchen waste is effectively realized, and the reduction and the resource utilization can be realized by combining systems such as solid-liquid separation, anaerobic fermentation and the like.
(4) The process adaptability is strong, and the requirements on the classification of the primary garbage are not high.
(5) The floor space is small, the investment cost is low, and the implementation, management and popularization are easy.
Compare original technique, original technique needs the feeding to finish and begins the pressurization process of heating again, therefore the material is intermittent type business turn over pyrolysis tank, and the utility model discloses a setting up of balanced festival can guarantee that the material gets into the pyrolysis link in succession, only need realize pressure conversion when balanced festival valve is opened and close, that is to say that can not pass in succession the material when the external pressure is unequal in the pyrolysis tank, handled and once carried out the feeding of next time again and heated the pressurization and handle, and the utility model discloses this link is matchd to material pressure and has been accomplished at balanced festival, the material ordinary pressure just can get into processing system in succession, carries out buffer memory and pressure conversion at balanced festival, gets into the pyrolysis link thereupon, and this continuous operation that can guarantee the material production line all, because the pressure conversion time is extremely short, can accomplish in the instant.
Examples
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Embodiment as shown in fig. 1, the utility model provides a continuous pyrohydrolysis device for kitchen waste, which comprises a feeding conveyor 1, a feeding storage section 6, a feeding balance section 7, a horizontal pyrohydrolysis tank 11, a discharging balance section 13, a discharging storage section 15, a discharging conveyor 17 and a balance tank 4.
A screw conveying device is arranged inside the horizontal thermal hydrolysis tank 11. The top of the horizontal thermal hydrolysis tank 11 is provided with a feed inlet and a communicating port communicated with the feed storage section 6 and the feed balance section 7. The bottom of the horizontal thermal hydrolysis tank 11 is provided with a plurality of discharge ports and steam inlets 12. A conveying passage from the feeding conveyor 1 to a feeding hole of the horizontal thermal hydrolysis tank 11 is provided with a feeding storage joint 6 and a feeding balance joint 7; a conveying channel from the discharging conveyor 17 to the discharging port of the horizontal type pyrohydrolysis tank 11 is provided with a discharging balance section 13 and a discharging storage section 15.
The feeding storage section 6, the feeding balance section 7, the discharging balance section 13 and the discharging storage section 15 are of steel round or rectangular cylinder structures, one end of each of the feeding storage section 6, the feeding balance section 7, the discharging balance section 13 and the discharging storage section 15 is open and provided with a connecting flange to be connected with a switch valve, and the other end of each of the feeding storage section 6 and the discharging balance section 7 is arranged above the cylinder body and below the switch valve; the discharging balance section 13 and the discharging storage section 15 are arranged below the cylinder body, and the switch valve is arranged above the cylinder body.
2 communication openings at the top of the horizontal type thermal hydrolysis tank 11 are respectively connected with the feeding balance joint 7 and the discharging balance joint 13, and a first stop valve 5 and a second stop valve 10 are arranged on the connecting pipeline.
4 tops of balance tank are equipped with 2 air inlets, and the air inlet is connected with balanced festival 7 of feeding and the balanced festival 13 of ejection of compact respectively, is equipped with third stop valve 2 and fourth stop valve 3 on the connecting tube.
In the horizontal type thermal hydrolysis tank 11, a steam inlet 12 tangentially admits air along the bottom of the tank, and a plurality of air inlets are axially arranged along the tank, so that the steam is evenly introduced. In the horizontal type pyrohydrolysis tank 11, kitchen waste is conveyed from the feeding hole to the discharging hole by the screw in the tank, and the screw drives the kitchen waste to turn over in the process, so that the kitchen waste and steam are uniformly mixed, and the pyrohydrolysis reaction is more complete. In the horizontal pyrohydrolysis tank 11, the tank deck is provided with a pressure and temperature detection device to monitor the working conditions in the tank in real time.
The process of treating the kitchen waste by using the continuous pyrohydrolysis device is as follows:
when the temperature and the pressure in the horizontal thermal hydrolysis tank 11 reach set values, the switch valve and the stop valve are all closed, and the feeding conveyor 1 waits for a feeding signal to be in an initial state; then starting the feeding conveyor 1, starting feeding, and continuously operating the feeding conveyor 1 until the whole treatment line stops; the material is continuously received in the feeding and storage section 6; the feeding and storing section switch valve 8 is opened, the feeding balance section 7 finishes the preset feeding amount, and the feeding and storing section switch valve 8 is closed; the first stop valve 5 is opened, and after the feeding balance joint 7 and the horizontal type thermal hydrolysis tank 11 are in equal pressure, the first stop valve 5 is closed; the first switch valve 9 is opened, the materials in the feeding balance joint 7 vertically fall into the horizontal thermal hydrolysis tank 11, and the first switch valve 9 is closed; the third stop valve 2 is opened, and after the pressure in the feeding balance joint 7 is reduced to be lower than 70kPa, the third stop valve 2 is closed, and one feeding cycle is finished;
after pyrolysis, starting the discharging conveyor 17 to start discharging, and continuously working the discharging conveyor 17 until the whole treatment line is stopped; the second stop valve 10 is opened, and the second stop valve 9 is closed after the discharging balance joint 13 and the horizontal type thermal hydrolysis tank 11 have equal pressure; the second switch valve 14 is opened, the pyrolysis material enters the discharging balance section 13 from the pyrolysis tank 11, the preset feeding amount is finished in the discharging balance section 13, and the second switch valve 14 is closed; the fourth stop valve 3 is opened, and after the pressure in the discharging balance joint 13 is reduced to be lower than 70kPa, the fourth stop valve 3 is closed; the discharging and storing section switch valve 16 is opened, the material in the discharging balance section 13 enters the discharging and storing section 15, the preset feeding amount is finished in the discharging and storing section 15, the discharging and storing section switch valve 16 is closed, and a discharging cycle is finished; material may fall from the outfeed storage node 15 into an outfeed conveyor 17.
After the kitchen waste is subjected to thermal hydrolysis treatment, organic matters in the kitchen waste are subjected to wall breaking and dissolution, microorganisms and ova on the surface of the kitchen waste are killed, and after pyrolysis, the kitchen waste can be subjected to subsequent anaerobic fermentation and the like to realize recycling treatment of the kitchen waste while harmless treatment and reduction of the kitchen waste are completed.
It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; relational terms such as "first" and "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Furthermore, in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The foregoing embodiments are merely illustrative of the present invention, and various components and devices of the embodiments may be modified, combined or omitted as desired, not all the components in the drawings being required, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application shall not be limited to the embodiments described herein, and all equivalent changes and modifications made on the basis of the technical solutions of the present invention shall not be excluded from the scope of the present invention.
Claims (10)
1. A kitchen waste pyrohydrolysis device, the device comprising:
a feed balancing section configured to receive the material and control the pressure therein to a desired value;
the feeding port of the thermal hydrolysis tank is in on-off controllable connection with the feeding balance section, and the discharging port of the thermal hydrolysis tank is in on-off controllable connection with the discharging balance section and is configured to perform constant-pressure thermal decomposition;
and the discharging balance joint is configured to receive the material pyrolyzed in the thermal hydrolysis tank and control the pressure in the thermal hydrolysis tank to be a required value.
2. The kitchen waste pyrohydrolysis device according to claim 1, further comprising a balance tank, wherein the balance tank comprises two air inlets, the two air inlets are respectively connected with the feeding balance section and the discharging balance section in an on-off controllable manner, the balance tank is configured as a steel pressure container, the balance tank is provided with a pressure relief port, the pressure in the balance tank is increased after the balance tank is communicated with the feeding balance section and the discharging balance section, and the balance tank is relieved to normal pressure through the pressure relief port before the balance tank is communicated next time.
3. The kitchen waste pyrohydrolysis device according to claim 2, wherein the volume of the balancing tank is 10 times or more the volume of the feed balancing section.
4. The kitchen waste pyrohydrolysis device according to any one of claims 1 to 3, wherein the feeding balance section is connected to the feeding port of the pyrohydrolysis tank through a first switching valve.
5. The kitchen waste pyrohydrolysis device according to claim 4, wherein the feeding balance section is connected to the pyrohydrolysis tank through a first shut-off valve, and the first shut-off valve is configured to adjust pressures on both sides of the connection to be equal.
6. The kitchen waste pyrohydrolysis device according to any one of claims 1 to 3, wherein the discharge balancing section is connected to a discharge port of the pyrohydrolysis tank through a second on-off valve.
7. The kitchen waste pyrohydrolysis device according to any one of claims 1 to 3, wherein the outlet balance section is connected to the pyrohydrolysis tank via a second stop valve, the second stop valve being configured to adjust pressures on both sides of the connection to be equal.
8. The kitchen waste pyrohydrolysis device according to any one of claims 1 to 3, wherein the pyrohydrolysis tank is a horizontal pyrohydrolysis tank; and a spiral conveying mechanism is arranged in the thermal hydrolysis tank to convey the pyrolysis material from one side to the other side in the thermal hydrolysis tank.
9. The kitchen waste pyrohydrolysis device according to any one of claims 1 to 3, further comprising a feeding storage section and a discharging storage section, wherein the feeding storage section is controllably connected with the feeding port of the feeding balance section in an open-close manner; the discharging and storing section is connected with the discharging port of the discharging balance section in a breaking and controllable manner.
10. The kitchen waste pyrohydrolysis device of claim 9, further comprising an in-feed conveyor connected to an inlet of the in-feed storage section and an out-feed conveyor connected to an outlet of the out-feed storage section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220707903.3U CN217912134U (en) | 2022-03-29 | 2022-03-29 | Kitchen waste pyrohydrolysis device |
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| CN202220707903.3U CN217912134U (en) | 2022-03-29 | 2022-03-29 | Kitchen waste pyrohydrolysis device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558879A (en) * | 2022-03-29 | 2022-05-31 | 北京洁绿环境科技股份有限公司 | Kitchen waste pyrohydrolysis device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558879A (en) * | 2022-03-29 | 2022-05-31 | 北京洁绿环境科技股份有限公司 | Kitchen waste pyrohydrolysis device and method |
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