CN210560464U

CN210560464U - Organic waste fermentation and biogas slurry purification integrated device

Info

Publication number: CN210560464U
Application number: CN201921509413.7U
Authority: CN
Inventors: 李平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-05-19
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses an organic waste fermentation and integrative device of natural pond liquid purification belongs to organic waste treatment engineering, fermentation engineering field, and it includes that retort body, stirring unit, ejection of compact unit, circulation spray unit, marsh gas heating unit, heating device etc.. This application can carry out fermentation treatment to organic waste, and through the repeated circulation flow of natural pond liquid, the fermentation process's that accelerates goes on, shortens organic waste's fermentation period. Meanwhile, based on self-heating generated by biogas slurry fermentation and heat generated by biogas, water in the biogas slurry can be evaporated, and the fermentation product in the device is dried through condensation and discharge of an upper end cover of the evaporation tank. The reduction treatment based on the application can effectively reduce the amount of biogas slurry and obtain semi-dry or dry biogas residues, thereby facilitating transportation and treatment. Meanwhile, the biogas slurry reduction treatment device can realize biogas slurry reduction treatment with low cost by using biogas generated by organic waste fermentation and heat generated by fermentation as a steam heating source.

Description

Organic waste fermentation and biogas slurry purification integrated device

Technical Field

The utility model relates to an organic waste treatment engineering, fermentation engineering field specifically are an organic waste fermentation and integrative device of natural pond liquid purification. The method can realize the fermentation of the organic waste, treats the fermented biogas residues, realizes the biogas slurry-free treatment, and has important improvement significance for realizing the recycling of the organic waste.

Background

In the environment of vegetable wholesale market, etc., a great amount of organic waste such as vegetable leaves, vegetable sides, etc. is generated every day. Such organic wastes are mostly plant fibers, are difficult to recycle as animal feeds, and are generally disposed of as garbage. According to rough measurement and calculation, the annual organic waste production of a large vegetable wholesale market in a turn reaches more than ten thousand tons. On one hand, a large amount of organic wastes are treated as garbage for landfill, and a large amount of landfill sites are occupied; on the other hand, the landfill disposal of organic waste as garbage is also a great waste of resources.

In rural areas, a matched biogas digester is usually built. Farmers usually add organic wastes into the biogas pool, the organic wastes can generate biogas and biogas slurry after anaerobic fermentation, the biogas is usually used for fire generation, and the biogas slurry is used as fertilizer to return to the field. However, when the existing biogas digester is used for treating organic waste in urban environment, the following problems can occur: 1) the prior methane tank usually adopts standing fermentation, and the fermentation period is long, so that the amount of organic waste treated by the methane tank is limited; 2) the biogas slurry in rural environment is generally returned to the field, while the biogas slurry in the city can be treated only in a way of outward transportation, and the transportation cost is extremely high due to the extremely large amount of the biogas slurry; 3) in addition, if the biogas slurry is directly discharged into the environment, the environment is also seriously polluted.

At present, people have carried out a great deal of research on purification and reduction treatment of biogas slurry. Chinese patent CN101602538B discloses an ecological purification device and method of biogas slurry, wherein the purification of biogas slurry is carried out by cultivating water hyacinth in a facultative tank, cultivating bacteria and algae, plankton and mussel in an aerobic tank, cultivating fish in a fish cultivating tank, using the bacteria and algae and plankton as fish bait, and finally clarifying effluent, which meets the national standard of sewage comprehensive discharge standard.

Chinese patent CN105000739B discloses a biogas slurry reduction treatment and biogas synergistic purification system and purification method, which can enhance the alkalinity and pH value of biogas slurry, reduce COD (chemical oxygen demand) and suspended matter concentration of the biogas slurry by adding plant ash into the biogas slurry, and then recover ammonia from the biogas slurry and concentrate the biogas slurry by a membrane decompression concentration technology, thereby realizing the purposes of controlling the ammonia nitrogen content in the biogas slurry and reducing and treating the biogas slurry.

Chinese patent CN106883982B discloses a method for synchronously purifying biogas slurry by algal bacteria symbionts of a pot-type photobioreactor, which not only cultures the algal bacteria symbionts, but also synchronously purifies diluted biogas slurry and biogas, so that biogas slurry wastewater meets the discharge standard and the quality of the biogas is improved.

Chinese patent CN104445816B discloses a method for treating high-concentration ammonia nitrogen pig-raising biogas slurry, which utilizes zeolite adsorption combined with microalgae purification technology to realize deep purification of the high-concentration ammonia nitrogen pig-raising biogas slurry and low-cost production of microalgae biomass.

Chinese patent CN102765996B discloses a method for resource utilization of ammonia nitrogen in biogas slurry, which 1) firstly separates biogas residues from biogas slurry and introduces the biogas slurry into a reaction tank; 2) adding the modified fly ash into the reaction tank, and fully mixing the modified fly ash and the biogas slurry, and keeping the reaction time to be 5-200 min; 3) after the reaction is finished, separating the modified fly ash from the biogas slurry, wherein the ammonia nitrogen compounds in the biogas slurry are adsorbed on the separated modified fly ash; 4) the modified fly ash absorbing the ammonia nitrogen compound is used as a base fertilizer of the fertilizer, and other nutrient components are added into the base fertilizer to be granulated together to prepare the fertilizer. The invention realizes resource recycling of ammonia nitrogen in the fly ash and the biogas slurry, reduces burden for purifying and treating the biogas slurry by a subsequent biological treatment method, and realizes harmlessness by resource.

As described above, a great deal of research has been conducted on purification and reduction treatment of biogas slurry, and various solutions have been proposed. Therefore, the application also provides an organic waste fermentation and biogas slurry purification integrated device to realize effective treatment of organic waste.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an organic waste fermentation and biogas slurry purification integrated device. The device of this application can carry out fermentation treatment to organic waste, and through the circulation flow repeatedly of natural pond liquid, the fermentation process goes on with higher speed, shortens organic waste's fermentation period. Meanwhile, based on self-heating generated by biogas slurry fermentation and heat generated by biogas, water in the biogas slurry can be evaporated, and the fermentation product in the device is dried through condensation and discharge of an upper end cover of the evaporation tank. The reduction treatment based on the application can effectively reduce the amount of biogas slurry and obtain semi-dry or dry biogas residues, thereby facilitating transportation and treatment. Meanwhile, the biogas slurry is subjected to reduction treatment at low cost by using biogas generated by organic waste fermentation and heat generated by fermentation as a heat source for evaporation, so that the effective treatment of the organic waste is facilitated, the method is environment-friendly, and has practical progressive significance and social benefit.

The utility model adopts the technical scheme as follows:

an organic waste fermentation and biogas slurry purification integrated device comprises a reaction tank body, a stirring unit, a discharging unit, a circulating spraying unit, a biogas heating unit, a heating device and a control system;

the reaction tank body comprises a lower tank body, an upper end cover, a condensate water tank and a condensate water outlet pipe, wherein the upper end cover is arranged on the lower tank body, the lower tank body is in a cylindrical shape with one open end, the upper end cover is in a conical shape, the upper end cover is respectively provided with a feed inlet and a methane gas outlet pipe, the lower tank body is detachably connected with the upper end cover, the condensate water tank is positioned below the lower edge of the upper end cover, condensate water on the inner wall of the upper end cover can fall into the condensate water tank along the inner wall of the upper end cover under the action of gravity, the condensate water tank is connected with the condensate water outlet pipe, and liquid in the condensate;

the stirring unit comprises a stirring assembly and a stirring driving device, wherein the stirring assembly comprises a connecting shaft arranged along the axial direction of the lower tank body and a stirring paddle arranged on the connecting shaft, the connecting shaft and the stirring paddle arranged on the connecting shaft are respectively arranged in the reaction tank body, the connecting shaft is connected with the stirring driving device, and the stirring driving device can drive the stirring paddle to rotate through the connecting shaft;

or the stirring component is a first spiral stirring rod, the stirring driving device is connected with the first spiral stirring rod, and the stirring driving device can drive the first spiral stirring rod to rotate;

the discharging unit comprises a separation partition plate arranged in the lower tank body, a second spiral conveying rod, a discharging pipe arranged on the lower tank body and a discharging driving device, the section of the separation partition plate along the vertical direction is U-shaped or V-shaped, a plurality of through holes are formed in the separation partition plate, the separation partition plate can realize solid-liquid separation of materials in the lower tank body, and the second spiral conveying rod is positioned on one side of the opening of the separation partition plate; one end of the second spiral conveying rod is connected with the discharging driving device, the discharging driving device can drive the second spiral conveying rod to rotate so as to convey the solid materials on the separation partition plate, the other end of the second spiral conveying rod is connected with the discharging pipe, and the solid materials on the separation partition plate can be output through the discharging pipe under the action of the second spiral conveying rod;

the circulating spraying unit comprises a first biogas slurry conveying pipe, a circulating pump and a second biogas slurry conveying pipe, a first space is formed between the lower end of the separation partition plate and the inner wall of the lower tank body, liquid in materials in the reaction tank body can enter the first space after solid-liquid separation is carried out on the liquid through the separation partition plate, the first biogas slurry conveying pipe is connected with the first space, the second biogas slurry conveying pipe is communicated with the inside of the reaction tank body, the first biogas slurry conveying pipe, the circulating pump and the second biogas slurry conveying pipe are sequentially connected, and the liquid in the first space can return to the reaction tank body through the first biogas slurry conveying pipe, the circulating pump and the second biogas slurry conveying pipe in sequence;

the biogas heating unit comprises a heating layer, a heating water inlet pipe and a heating water outlet pipe which are arranged on the outer wall of the lower tank body, the heating layer and the outer wall of the lower tank body form a second space, the heating water inlet pipe and the heating water outlet pipe are respectively connected with the second space, the biogas outlet pipe is connected with the heating device, and biogas in the reaction tank body can be used as a heat source of the heating device; the heating device is respectively connected with the heating water outlet pipe and the heating water inlet pipe and can heat the liquid flowing out of the heating water outlet pipe and return the liquid to the second space through the heating water inlet pipe;

and the stirring driving device, the discharging driving device and the circulating pump are respectively connected with the control system.

And a thermometer for measuring the temperature in the reaction tank body.

The section of the lower tank body in the horizontal direction is in a ring shape, the condensate water tank is connected with the lower tank body, and the condensate water tank is located below the upper end cover.

The lower tank body is connected with the upper end cover through a flange plate.

The connecting shaft is superposed with the central shaft of the lower tank body.

The stirring driving device is a motor.

Still including being located the internal nozzle of retort, the nozzle links to each other with second natural pond liquid conveyer pipe and the intraductal liquid of second natural pond liquid conveyer can spout into the retort internally through the nozzle.

The section of the separation partition plate in the vertical direction is V-shaped, the separation partition plate is formed by connecting two side plates, and the second spiral conveying rod is located at the joint of the two side plates.

The heating device is a thermoelectric coupling device, the biogas outlet pipe is connected with the thermoelectric coupling device, biogas in the reaction tank body can be used as a heat source of the thermoelectric coupling device, the thermoelectric coupling device is respectively connected with the heating water outlet pipe and the heating water inlet pipe, the heating device can heat liquid flowing out of the heating water outlet pipe and return the liquid to the second space through the heating water inlet pipe, and the thermoelectric coupling device is connected with the control system.

At least two organic waste fermentation and biogas slurry purification integrated devices are connected in parallel.

Adopts a mode that a single heating device is matched with at least two methane heating units.

Use of the aforementioned apparatus in the treatment of organic waste.

The method comprises the following steps:

(1) adding organic waste into the reaction tank body through the feed inlet, and adjusting the solid-liquid ratio in the reaction tank body to a set value; materials in the reaction tank body are stirred through the stirring unit, liquid in the reaction tank body is pumped out from the first biogas slurry conveying pipe through the circulating spraying unit, and then returns to the reaction tank body again through the second biogas slurry conveying pipe; the biogas generated in the reaction tank body is sent into a heating device, and the liquid in the biogas heating unit is heated by the heating device, so that a proper reaction temperature is provided for the fermentation of the organic waste in the reaction tank body; water vapor generated by materials in the reaction tank body is condensed on the inner wall of the upper end cover, falls into the condensed water tank along the inner wall of the upper end cover and is discharged through a condensed water pipe;

(2) after the moisture of the material in the reaction tank body is evaporated, the discharging unit drives the second spiral conveying rod to move through the discharging driving device, and then the material on the separation partition plate is driven to be discharged from the discharging pipe;

(3) repeating the steps 1 and 2, and carrying out the next organic waste treatment.

To aforementioned problem, the application provides an organic waste fermentation and integrative device of natural pond liquid purification, and it includes that retort body, stirring unit, discharge unit, circulation spray unit, marsh gas heating unit, heating device, control system. In this application, the retort body is including lower jar of body, upper end cover, condensate flume, condensation outlet pipe, and lower jar of body is one end open-ended tube-shape, and the upper end cover is toper or round platform shape and sets up under on jar of body, adopts to dismantle between lower jar of body and the upper end cover to be connected, is provided with feed inlet, marsh gas outlet duct on the upper end cover respectively. The condensate water tank is positioned below the lower edge of the upper end cover and is connected with the condensate water outlet pipe.

Meanwhile, the stirring unit comprises a stirring assembly and a stirring driving device, the stirring assembly comprises a connecting shaft and a stirring paddle, the connecting shaft is axially arranged along the lower tank body, the stirring paddle is arranged on the connecting shaft, the connecting shaft and the stirring paddle arranged on the connecting shaft are respectively arranged in the reaction tank body, and the connecting shaft is connected with the stirring driving device. As an alternative mode, the stirring component is a first spiral stirring rod, and the stirring driving device is connected with the first spiral stirring rod.

The discharging unit comprises a separation partition plate arranged in the lower tank body, a second spiral conveying rod, a discharging pipe arranged on the lower tank body and a discharging driving device. The section of separation baffle along vertical direction is U type or V type, is provided with a plurality of through-hole on the separation baffle, and second auger delivery pole is located separation baffle opening one side, and second auger delivery pole is located the U type or the V type opening inboard of separation baffle promptly. One end of the second spiral conveying rod is connected with the discharging driving device, and the other end of the second spiral conveying rod is connected with the discharging pipe; in the structure, the second spiral conveying rod is mainly used for outputting solid materials on the separation partition plate through the discharge pipe. In the structure, the separation clapboard is used for realizing solid-liquid separation of materials in the lower tank body, liquid in the materials flows out through the through holes on the separation clapboard, and solid is physically left on the separation clapboard; and the second spiral conveying rod can output the solid materials on the separation partition plate through the discharge pipe.

The circulation sprays the unit and includes first natural pond liquid conveyer pipe, circulating pump, second natural pond liquid conveyer pipe, forms first space between separation baffle lower extreme and the lower internal wall of jar, and first natural pond liquid conveyer pipe links to each other with first space, and second natural pond liquid conveyer pipe and the internal portion intercommunication of retort, first natural pond liquid conveyer pipe, circulating pump, second natural pond liquid conveyer pipe link to each other in proper order. In the structure, liquid circulation is formed by the first biogas slurry conveying pipe, the circulating pump, the second biogas slurry conveying pipe and the reaction tank body; liquid in the materials in the reaction tank body enters a first space after passing through a separation partition plate; and liquid in the first space returns to the reaction tank body through the first biogas slurry conveying pipe, the circulating pump and the second biogas slurry conveying pipe in sequence to perform fermentation treatment.

The biogas heating unit comprises a heating layer, a heating water inlet pipe and a heating water outlet pipe which are arranged on the outer wall of the lower tank body, the heating layer and the outer wall of the lower tank body form a second space, the heating water inlet pipe and the heating water outlet pipe are respectively connected with the second space, the biogas air outlet pipe is connected with a heating device, and the heating device is respectively connected with the heating water outlet pipe and the heating water inlet pipe. In this application, regard as the heat source with the marsh gas that retort body fermentation produced, through the antithetical couplet use with heating device, utilize heating device to heat water to through the second space to the internal material of retort intensification processing, thereby improve the fermentation efficiency of the internal material of retort. Meanwhile, the stirring driving device, the discharging driving device and the circulating pump are respectively connected with the control system, the stirring driving device is used for providing power for the stirring assembly, the discharging driving device is used for providing power for the second spiral conveying rod, and the circulating pump is used for providing power for the circulating flow of the liquid.

Based on the structure, the device works as follows.

(1) And adding organic waste into the reaction tank body through a feed inlet on the upper end cover, and adjusting the solid-liquid ratio in the reaction tank body to a set value. Materials in the reaction tank body are stirred through the stirring unit, liquid in the reaction tank body is pumped out from the first biogas slurry conveying pipe through the circulating spraying unit, and then returns to the reaction tank body again through the second biogas slurry conveying pipe; by adopting the mode, the circulation of the biogas slurry can accelerate the fermentation process of the organic waste. The biogas generated in the reaction tank body is sent into a heating device, and the liquid in the biogas heating unit is heated by the heating device, so that a proper reaction temperature is provided for the fermentation of the organic waste in the reaction tank body; in the structure, methane generated by organic waste fermentation is used as a heat source, so that the reaction tank body is heated, and the smooth fermentation process is ensured.

Simultaneously, the produced steam of the internal material of retort can be at the upper end cover inner wall condensation (in this application, the upper end cover outer wall does not set up corresponding zone of heating or heat preservation, and this makes the steam of upper end cover inner wall catch cold and take place the condensation), then falls into the condensate water inslot along the inner wall of upper end cover (under the action of gravity, the condensate water can fall into the condensate water inslot along the inner wall of upper end cover) to finally discharge through the condensate pipe.

(2) After the water of the material in the reaction tank body is evaporated (in the application, the material on the separation baffle plate can meet the drying requirement based on continuous heating of the heating device on the reaction tank body and continuous discharge of condensed water, the generation of biogas slurry is effectively avoided, and the effective drying of the material in the reaction tank body can be realized in twenty days or so through practical tests), the discharge unit drives the second spiral conveying rod to move through the discharge driving device, so that the material on the separation baffle plate is driven to be discharged from the discharge pipe.

(3) Repeating the steps 1 and 2, and carrying out the next organic waste treatment. In the application, only dry biogas residues are finally obtained through fermentation and biogas slurry purification treatment of the reaction tank body, and the generation of biogas slurry is effectively avoided.

The application also comprises a thermometer, and the thermometer is used for measuring the internal temperature of the reaction tank body, so that the smooth proceeding of the fermentation process is ensured. Further, the section of the lower tank body along the horizontal direction is in a ring shape, the condensate water tank is connected with the lower tank body, and the condensate water tank is located below the upper end cover. Preferably, the lower tank body is connected with the upper end cover through a flange. Further, the connecting shaft is superposed with the central shaft of the lower tank body; by adopting the mode, the stirring component can be better matched with the reaction tank body.

Further, the biogas slurry reactor also comprises a nozzle positioned in the reaction tank body, and the nozzle is connected with the second biogas slurry conveying pipe; through the nozzle, the liquid in the second biogas slurry conveying pipe can be uniformly sprayed into the reaction tank body, and the fermentation efficiency of biogas slurry is effectively improved. Preferably, the section of the separation partition plate along the vertical direction is V-shaped, the separation partition plate is formed by connecting two side plates, and the second spiral conveying rod is positioned at the joint of the two side plates.

Further, still including setting up the heat preservation on the zone of heating outer wall, the heat preservation is rock wool layer, polyethylene layer, polyurethane layer, polyphenyl insulation board layer or glass fiber heat preservation. In this application, set up the heat preservation and be favorable to reducing the internal thermal scattering and disappearing of retort, reduce energy resource consumption.

Further, the heating device is preferably a thermoelectric device, the biogas outlet pipe is connected with the thermoelectric device, the thermoelectric device is respectively connected with the heating water outlet pipe and the heating water inlet pipe, and the thermoelectric device is connected with the control system. In this application, heating outlet pipe, heating inlet tube cooperate with the thermoelectric coupling device to the realization is to the heating of liquid in the second space. Based on the improvement, the use cost of the system can be greatly reduced, and the system has better cost performance and corresponding practicability.

Further, at least two organic waste fermentation and biogas slurry purification integrated devices are connected in parallel. Preferably, a mode that a single heating device is matched with two or more methane heating units can be adopted, namely, a mode that one heating device is matched with a plurality of reaction tank bodies can be adopted; when the reaction tank body A is in the early stage process, the other reaction tank body B which generates the methane can provide a heat source for the heating device, so that the proper temperature is provided for the fermentation of the reaction tank body A, and the smooth proceeding of the fermentation process is ensured. Based on the structure, the continuous fermentation and purification treatment of the organic waste can be realized by connecting a plurality of devices in parallel, and the requirements of industrial application are met.

To sum up, this application provides an organic waste fermentation and integrative device of natural pond liquid purification, and it can be used for handling organic waste to realize fermentation, natural pond liquid purification integration and handle, and can effectively reduce the consumption to the energy, have energy-conservation, consumption reduction's advantage. By adopting the method, the production of biogas slurry can be greatly reduced, the secondary pollution to the environment is effectively avoided, and the produced biogas residues can also be used as fertilizer and feed, so that the effective utilization of organic waste is realized. Meanwhile, the transportation and treatment cost of the organic waste can be effectively reduced based on the great reduction of the biogas slurry. In addition, based on the fermentation and purification integrated treatment of the organic waste, the volume of the organic waste can be greatly reduced, and the requirement of the industrial treatment of the organic waste is met.

Drawings

Fig. 1 is a schematic view of the overall structure of the organic waste fermentation and biogas slurry purification integrated apparatus in example 1.

FIG. 2 is a partial sectional view of the integrated apparatus for organic waste fermentation and biogas slurry purification of example 1.

3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 2 3. 3

Fig. 4 is a sectional view taken along line B-B of fig. 3.

The labels in the figure are: 1. the reaction tank body, 2, lower tank body, 3, upper end cover, 4, condensate water tank, 5, condensation outlet pipe, 6, feed inlet, 7, marsh gas outlet pipe, 10, stirring subassembly, 11, stirring drive arrangement, 20, separation baffle, 21, second auger delivery pole, 22, discharging pipe, 23, ejection of compact drive arrangement, 30, first natural pond liquid conveyer pipe, 31, second natural pond liquid conveyer pipe, 40, zone of heating, 41, heating inlet tube, 42, heating outlet pipe.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in the figure, the organic waste fermentation and biogas slurry purification integrated device of the embodiment comprises a reaction tank body, a stirring unit, a discharging unit, a circulating spraying unit, a biogas heating unit, a heating device and a control system.

The reaction tank body comprises a lower tank body, an upper end cover arranged on the lower tank body, a condensate water tank and a condensate water outlet pipe. The lower tank body is in a cylindrical shape with an opening at one end, the upper end cover is in a conical shape, the upper end cover is respectively provided with a feed inlet and a biogas outlet pipe, and the lower tank body is detachably connected with the upper end cover. The condensate water tank is positioned below the lower edge of the upper end cover and is connected with the condensate water outlet pipe. Preferably in this embodiment, the section of lower jar of body along the horizontal direction is ring shape, and the condensate tank links to each other with lower jar of body, and the condensate tank is located the upper end cover below. Based on the structure, the condensed water on the inner wall of the upper end cover falls into the condensed water tank along the inner wall of the upper end cover under the action of gravity and is discharged through the condensed water outlet pipe.

The stirring unit comprises a stirring assembly and a stirring driving device, the stirring assembly comprises a connecting shaft and a stirring paddle, the connecting shaft and the stirring paddle are arranged on the connecting shaft in the axial direction of the lower tank body, the connecting shaft and the stirring paddle are arranged on the connecting shaft and are arranged in the reaction tank body respectively, and the connecting shaft is connected with the stirring driving device. As an alternative mode, the stirring component is a first spiral stirring rod, and the stirring driving device is connected with the first spiral stirring rod. In this application, stirring subassembly mainly used drives the internal material motion of retort.

The discharging unit comprises a separation partition plate arranged in the lower tank body, a second spiral conveying rod, a discharging pipe arranged on the lower tank body and a discharging driving device. In this embodiment, the section of separation baffle along vertical direction preferably is the V type, and the equipartition has a plurality of through-hole on the separation baffle, and second auger delivery pole is located separation baffle opening one side. Meanwhile, one end of the second spiral conveying rod is connected with the discharging driving device, and the other end of the second spiral conveying rod is connected with the discharging pipe. In this embodiment, the separation baffle is used for realizing the solid-liquid separation to the internal material of lower jar, and ejection of compact drive arrangement is used for driving the rotation of second auger delivery pole to the realization is to the transport of solid-state material on the separation baffle, and finally exports through the discharging pipe.

The circulation sprays the unit and includes first natural pond liquid conveyer pipe, circulating pump, second natural pond liquid conveyer pipe, forms first space between separation baffle lower extreme and the lower internal wall of jar, and first natural pond liquid conveyer pipe links to each other with first space, and second natural pond liquid conveyer pipe and the internal portion intercommunication of retort, first natural pond liquid conveyer pipe, circulating pump, second natural pond liquid conveyer pipe link to each other in proper order.

The biogas heating unit comprises a heating layer, a heating water inlet pipe and a heating water outlet pipe which are arranged on the outer wall of the lower tank body, the heating layer and the outer wall of the lower tank body form a second space, the heating water inlet pipe and the heating water outlet pipe are respectively connected with the second space, the biogas air outlet pipe is connected with a heating device, and the heating device is respectively connected with the heating water outlet pipe and the heating water inlet pipe.

In the embodiment, a biogas slurry circulating spraying member is arranged for realizing circulating spraying of biogas slurry; the self-heating component of the reaction tank body is adopted to provide proper temperature for the fermentation of organic waste in the reaction tank body.

In this embodiment, stirring drive arrangement, ejection of compact drive arrangement, circulating pump link to each other with control system respectively. Preferably, the stirring drive device and the discharging drive device are respectively motors.

Further, this embodiment also includes a thermometer for measuring the temperature inside the reaction tank body.

Preferably, the embodiment further comprises a nozzle positioned in the reaction tank body, the nozzle is connected with the second biogas slurry conveying pipe, and liquid in the second biogas slurry conveying pipe can be sprayed into the reaction tank body through the nozzle.

Further, the heating device of this embodiment is a thermoelectric device. The biogas outlet pipe is connected with the thermoelectric coupling device, the thermoelectric coupling device is respectively connected with the heating water outlet pipe and the heating water inlet pipe, and the thermoelectric coupling device is connected with the control system. In the structure, biogas generated in the reaction tank body is used as a heat source of the thermoelectric combination device, and liquid flowing out of the heating water outlet pipe is heated by the heating device, so that temperature guarantee is provided for fermentation of the reaction tank body.

The use procedure of the aforementioned device is as follows.

(3) Repeating the steps 1 and 2, and carrying out the next organic waste treatment. In the embodiment, only dry biogas residues are finally obtained through fermentation and biogas slurry purification treatment of the reaction tank body, so that the generation of biogas slurry is effectively avoided.

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 modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An organic waste fermentation and biogas slurry purification integrated device is characterized by comprising a reaction tank body, a stirring unit, a discharging unit, a circulating spraying unit, a biogas heating unit, a heating device and a control system;

2. The apparatus of claim 1, further comprising a thermometer for measuring the temperature inside the reaction tank body.

3. The apparatus of claim 1, wherein the lower tank is circular in horizontal cross section, the condensate trough is circular, the condensate trough is connected to the lower tank, and the condensate trough is located below the upper cover.

4. The apparatus of claim 1, wherein the lower tank is connected to the upper end cap by a flange.

5. The apparatus of claim 1, wherein the connecting axis coincides with a central axis of the lower tank.

6. The device as claimed in claim 1, further comprising a nozzle positioned in the reaction tank body, wherein the nozzle is connected with the second biogas slurry conveying pipe, and the liquid in the second biogas slurry conveying pipe can be sprayed into the reaction tank body through the nozzle.

7. The device according to any one of claims 1 to 6, wherein the separation partition plate is V-shaped in vertical section, the separation partition plate is formed by connecting two side plates, and the second spiral conveying rod is positioned at the joint of the two side plates.

8. The device according to any one of claims 1 to 6, wherein the heating device is a thermoelectric device, the biogas outlet pipe is connected with the thermoelectric device, biogas in the reaction tank body can be used as a heat source of the thermoelectric device, the thermoelectric device is respectively connected with the heating water outlet pipe and the heating water inlet pipe, the heating device can heat liquid flowing out of the heating water outlet pipe and return the liquid to the second space through the heating water inlet pipe, and the thermoelectric device is connected with the control system.

9. The device as claimed in claim 7, wherein the heating device is a cogeneration device, the biogas outlet pipe is connected with the cogeneration device and the biogas in the reaction tank body can be used as a heat source of the cogeneration device, the cogeneration device is respectively connected with the heating water outlet pipe and the heating water inlet pipe, the heating device can heat the liquid flowing out of the heating water outlet pipe and return the liquid to the second space through the heating water inlet pipe, and the cogeneration device is connected with the control system.

10. The apparatus of claim 1, wherein at least two organic waste fermentation and biogas slurry purification integrated apparatuses are connected in parallel.

11. The apparatus according to claim 10, characterized in that a single heating device is used in cooperation with at least two biogas heating units.