CN213856257U - Modularized organic garbage treatment system - Google Patents

Abstract

The utility model belongs to the technical field of organic refuse treatment, a organic refuse treatment system of modularization is disclosed, it includes: a garbage pretreatment device, an extrusion dehydration device, a subcritical hydrolysis treatment device, a centrifugal separation device, an exhaust gas treatment device and a wastewater treatment device. The garbage pretreatment device is used for screening and crushing garbage materials; the extrusion dehydration device is used for dehydrating the garbage materials; the subcritical hydrolysis treatment device is used for organically decomposing the garbage materials, and waste gas generated by the organically decomposing enters the waste gas treatment device; the centrifugal separation device is used for carrying out solid-liquid separation on the garbage materials, and wastewater generated by the solid-liquid separation and wastewater generated by the extrusion dehydration device enter the wastewater treatment device. The utility model discloses a modularization organic waste processing system can convenient and fast realize quick minimizing to kitchen garbage, realizes the purpose of dealing with on the spot, and the risk of the distributed processing of tradition that can also significantly reduce simultaneously has effectively improved kitchen garbage's treatment effeciency.

Description

Modularized organic garbage treatment system

Technical Field

The utility model belongs to the technical field of organic refuse treatment, concretely relates to organic refuse treatment system of modularization.

Background

The kitchen waste is food waste generated in daily business and living processes of catering units and families, and is one of main components of urban organic waste. Because the components of the kitchen waste are complex, if the kitchen waste is mixed with domestic waste for sanitary landfill treatment, the output of leachate is large, if the kitchen waste is directly composted, the product impurities are difficult to be high, and if the kitchen waste is incinerated, the calorific value is low, so that the kitchen waste is subjected to a separate treatment process. The existing kitchen waste treatment generally adopts a centralized anaerobic fermentation mode so as to further recycle resources such as methane and the like generated in the treatment process. However, as the sources of the kitchen waste are relatively dispersed, the existing centralized treatment method usually causes the following disadvantages: on one hand, the concentrated treatment of the scattered kitchen waste brings higher transportation cost; on the other hand, secondary spilling of the garbage is easily caused in the transportation process, so that secondary pollution to the environment is easily caused. In addition, the centralized treatment of the kitchen waste directly reduces the efficiency of the kitchen waste treatment system (or equipment) for treating the waste. Therefore, modular in-situ processing is a good choice.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned whole or partial problem, the utility model aims to provide a modularization organic waste processing system to can convenient and fast realize quick minimizing to kitchen garbage, realize the purpose of dealing with on the spot, the risk of the distributed processing of tradition that can also significantly reduce simultaneously has effectively improved kitchen garbage's treatment effeciency.

The utility model discloses an organic refuse treatment system of modularization includes: a garbage pretreatment device, an extrusion dehydration device, a subcritical hydrolysis treatment device, a centrifugal separation device, an exhaust gas treatment device and a wastewater treatment device. The garbage pretreatment device is used for screening and crushing garbage materials; the extrusion dehydration device is used for dehydrating the screened and crushed garbage materials; the subcritical hydrolysis treatment device is used for organically decomposing the dewatered garbage materials, and the waste gas generated by the organic decomposition enters the waste gas treatment device for harmless treatment; the centrifugal separation device is used for carrying out solid-liquid separation on the garbage materials after organic decomposition, and wastewater generated by the solid-liquid separation and wastewater generated by the extrusion dehydration device enter the wastewater treatment device for harmless treatment.

Further, the garbage pretreatment device comprises a vibration screening device and a shearing and crushing device, wherein the vibration screening device is used for receiving garbage materials and screening the garbage materials into kitchen garbage and non-kitchen garbage; the shearing and crushing device is used for receiving the kitchen waste and crushing the kitchen waste into material particles with preset sizes.

Furthermore, the particle size of the material particles is less than or equal to 10 mm.

Further, the shearing and crushing device is multi-shaft shearing and crushing equipment or multi-stage shearing and crushing equipment.

Further, the wastewater treatment device comprises an oil-water separation device and an electric flocculation wastewater treatment device, wherein the oil-water separation device is used for receiving wastewater generated by the extrusion dehydration device and carrying out oil-water separation on the wastewater, and grease generated after the oil-water separation is recycled; the electric flocculation wastewater treatment device is used for receiving and treating wastewater generated after oil-water separation of the oil-water separation device and receiving wastewater generated by the centrifugal separation device so as to enable the wastewater to reach the discharge standard.

Further, the electrode in the electrolysis area of the electric flocculation wastewater treatment device adopts a coating anode structure or a three-dimensional electrode structure.

Further, the Ph value range of the electric flocculation wastewater treatment device during working is 5-9, the electrode plate spacing range is 10-30 mm, and the current intensity range is 2-25 mA/cm²The retention time of the wastewater is 20-60 min.

Furthermore, the inner container of the subcritical hydrolysis treatment device is made of polytetrafluoroethylene, the retention time of the garbage is not less than 30min, the working temperature is not less than 150 ℃, and the working pressure is not less than 0.5 MPa.

Furthermore, the extrusion dehydration device is a variable diameter screw extrusion dehydration device.

Further, the exhaust gas treatment device comprises a UV photolysis unit and an activated carbon adsorption unit.

The utility model discloses organic refuse treatment system of modularization has the following advantage in several aspects:

1) the modularized organic waste treatment system of the utility model can realize complete organic waste treatment process through the combination of each device, and the final discharge can be realized harmlessly, thereby effectively realizing a mobile disposal mode, avoiding the problems of higher transportation cost caused by the relatively dispersed sources of kitchen waste of the kitchen waste treatment system (or equipment) in the prior art and the problem of secondary pollution caused by secondary spilling in the transportation process;

2) the modularized organic garbage treatment system of the utility model can realize the rapid decomposition of organic matters in the garbage materials by adopting the subcritical hydrolysis treatment device to treat the garbage materials, and has high treatment efficiency, thereby avoiding the generation of harmful substances such as viruses, pathogenic bacteria and pathogenic microorganisms in the garbage materials;

3) the modularized organic garbage treatment system of the utility model only needs to plug in electricity to each device for operation, and does not need other external energy, thereby effectively saving the use of other energy sources;

4) the modularized organic garbage treatment system of the utility model can effectively remove metal ions and ammonia nitrogen by adopting the electric flocculation wastewater treatment device, thereby effectively realizing the standard discharge of wastewater;

5) the utility model discloses an organic refuse treatment system of modularization is through adopting the mode of "UV photodissociation + active carbon adsorption" to deodorize waste gas, can get rid of the peculiar smell in the waste gas effectively, eliminates gustatory pollution.

Drawings

Fig. 1 is a schematic view of a system connection of a modular organic waste treatment system according to an embodiment of the present invention.

Detailed Description

For better understanding of the purpose, structure and function of the present invention, the following description will be made in detail with reference to the accompanying drawings.

Fig. 1 shows a system connection schematic diagram of a modular organic waste processing system 100 according to an embodiment of the present invention. As shown in fig. 1, the modular organic waste processing system 100 includes: garbage pretreatment device 1, squeezing dehydration device 2, subcritical hydrolysis treatment device 3, centrifugal separation device 4, exhaust gas treatment device 5, and wastewater treatment device 6. The garbage pretreatment device 1 is used for screening and crushing garbage materials; the extrusion dehydration device 2 is used for dehydrating the screened and crushed garbage materials; the subcritical hydrolysis treatment device 3 is used for organically decomposing the dewatered garbage materials, and waste gas generated by the organic decomposition enters the waste gas treatment device 5 for harmless treatment; the centrifugal separation device 4 is used for carrying out solid-liquid separation on the garbage materials after organic decomposition, and wastewater generated by the solid-liquid separation and wastewater generated by the extrusion dehydration device 2 enter the wastewater treatment device 6 for harmless treatment.

The utility model discloses modularization organic waste processing system 100 is when using, collect the back with pending waste material (like kitchen garbage, kitchen garbage), get into rubbish preprocessing device 1 among the modularization organic waste processing system 100, rubbish preprocessing device 1 can separate organic kitchen garbage and other non-kitchen debris in the waste material after screening and breakage the waste material, and broken to the graininess of predetermineeing the size, the waste material after the breakage is sent into extrusion dewatering device 2 and is dewatered, owing to break into the bold material fritter material, thereby can improve the dewatering effect through extrusion dewatering device 2 effectively. The dewatered solid waste material is sent into a subcritical hydrolysis treatment device 3 for mechanical treatment, so that organic matters in the waste material can be rapidly decomposed. And gas generated in the heating treatment process of the garbage material by the subcritical hydrolysis treatment device 3 is discharged into the waste gas treatment device 5 for harmless treatment and then is discharged. The solid waste material and the liquid treated by the subcritical hydrolysis treatment device 3 are subjected to solid-liquid separation by a centrifugal separation device 4, the solid residue and the non-kitchen sundries are sent to an external waste incineration plant for final treatment, and the waste liquid is discharged into a waste water treatment device 6 for harmless treatment and then is discharged. The waste liquid generated by the squeezing and dewatering device 2 is also discharged to the waste water treatment device 6 for harmless treatment and then discharged.

Through the above arrangement, the modular organic waste treatment system 100 of the embodiment of the present invention has the following advantages:

1) the utility model discloses organic refuse treatment system of modularization 100 of embodiment can make it have complete organic refuse treatment process through the combination of each device, and final emission all can realize innoxiously. Thus, the organic waste treatment system 100 is used in a modularized manner, so that a mobile disposal mode can be effectively realized, and the problems of higher transportation cost caused by the dispersion of the sources of the kitchen waste treatment system (or equipment) and secondary pollution caused by secondary spilling in the transportation process in the prior art can be avoided;

2) the modularized organic garbage treatment system 100 provided by the embodiment of the utility model can realize the rapid decomposition of organic matters in garbage materials by adopting the subcritical hydrolysis treatment device 3 to treat the garbage materials, and has high treatment efficiency, thereby avoiding the generation of harmful substances such as viruses, pathogenic bacteria and pathogenic microorganisms in the garbage materials;

3) the utility model discloses organic refuse treatment system of modularization 100 only needs to insert the electricity operation to each device, does not need other external energy to can practice thrift the use of other energy effectively.

Here, the subcritical hydrolysis treatment apparatus 3 should be understood to be capable of heating the water in the waste material to a temperature higher than the boiling point and lower than the critical point, and controlling the system pressure to keep the water in the waste material in a liquid state, so that the water in the waste material becomes subcritical water. Thus, under normal conditions, at high temperatures and pressures, the polarity of the water decreases, allowing the extraction of non-polar compounds, whereas the organic substances are generally non-polar or weakly polar and are poorly soluble in water with a relatively high polarity. Subcritical water has properties of strong dissolution of organic matter in water and strong decomposition power. The extraction can be completed in a short time of several seconds to several minutes, and thus has an advantage that continuous treatment can be performed.

Preferably, the modular organic waste processing system 100 can be set to an intermittent operation mode through the control system, so as to implement the processing of the waste materials in batches, ensure the processing effect of each batch of waste materials, and simultaneously prolong the service life of the modular organic waste processing system 100.

Preferably, as shown in fig. 1, the waste pre-treatment device 1 may comprise a vibratory screening device 11 and a shear crushing device 12. The vibration screening device 11 is used for receiving garbage materials and screening the garbage materials into kitchen garbage and non-kitchen garbage; the shearing and crushing device 12 is used for receiving the kitchen waste and crushing the kitchen waste into material particles with preset sizes. The vibrating sieving device 11 and the shearing and crushing device 12 can be selected from a kitchen waste vibrating sieving machine and a shearing and crushing device which are conventionally used in the prior art, and the structure and the using mode are not repeated. Wherein, preferably, the shearing and crushing device 12 can be selected from a multi-shaft shearing and crushing device or a multi-stage shearing and crushing device. A multi-axis shear crushing apparatus is to be understood as having a plurality of rotating cutter shafts for shear crushing, which may for example comprise biaxial, triaxial or peripheral rotating cutter shafts, preferably a biaxial shear crushing apparatus. A multistage shear crushing plant is to be understood as a combination of a plurality of plants, preferably a two-stage shear crushing plant, which can carry out shear crushing continuously.

Preferably, the particle size of the material particles may be 10mm or less. Namely, the garbage materials crushed by the shearing and crushing device 12 can form material particles with the particle size less than or equal to 10mm, so as to facilitate the subsequent treatment. It should be noted that the particle size of the material particles should be understood as the diameter of the garbage material crushed by the shearing and crushing device 12 when the shape of the garbage material is approximately spherical particles.

Preferably, as shown in fig. 1, the wastewater treatment apparatus 6 may include an oil-water separation apparatus 61 and an electric flocculation wastewater treatment apparatus 62. The oil-water separation device 61 is used for receiving the wastewater generated by the extrusion dehydration device 2 and performing oil-water separation on the wastewater, and the grease generated after the oil-water separation is recycled; the electric flocculation wastewater treatment device 62 is used for receiving and treating wastewater generated after the oil-water separation of the oil-water separation device 61 and wastewater generated by the centrifugal separation device 4 so as to enable the wastewater to reach the discharge standard. Specifically, according to the utility model discloses effluent treatment plant 6 is when using, and the waste liquid that extrusion dewatering device 2 produced gets into oil water separator 61 and separates, and the grease after the separation can carry out recycle, and the waste water after the separation is then sent into electric flocculation effluent treatment plant 62 and is handled, discharges after electric flocculation effluent treatment plant 62 handles waste water is up to standard. Through this setting, metal ion and ammonia nitrogen can effectively be got rid of to electric flocculation effluent treatment plant 62 to can realize effectively that waste water discharge to reach standard.

In a preferred embodiment, the oil-water separation device 61 and the electric flocculation wastewater treatment device 62 can be both kitchen waste oil-water separation equipment and electric flocculation wastewater treatment equipment which are conventionally used in the prior art, and the structure and the use mode thereof are not described herein again. Further, the electric flocculation wastewater treatment apparatus 62 may include a sewage treatment apparatus in which an electrolysis region is formed. The electrolysis region is filled with an electrolysis polar plate which is connected with an external power supply.

Preferably, the electrodes (electrolysis plates) in the electrolysis zone of the electric flocculation wastewater treatment device 62 can adopt a coated anode structure (such as a titanium coated anode plate) or a three-dimensional electrode structure. Wherein, the coating anode structure can be a titanium coating anode plate; the three-dimensional electrode structure can be constructed into a porous electrode, a packed bed electrode and the like, can effectively increase the effective area of the electrode, and has high electrolysis efficiency.

Still preferably, the electric flocculation wastewater treatment device 62 has a working Ph value ranging from 5 to 9, a plate gap ranging from 10 to 30mm, and a current intensity ranging from 2 to 25mA/cm²The retention time of the wastewater can be 20-60 min. Through this setting, can guarantee the treatment effect of waste water effectively.

In a preferred embodiment, subcritical hydrolysis treatment apparatus 3 may be selected from subcritical hydrolysis treatment devices conventionally used in the art. Preferably, the utility model discloses the subcritical hydrolysis treatment device 3 of implementing still is provided with the inner bag that is used for filling the rubbish material in jar internal portion, and subcritical hydrolysis treatment device 3's inner bag can adopt the polytetrafluoroethylene material, and rubbish dwell time is not less than 30min, and operating temperature is not less than 150 degrees, and operating pressure is not less than 0.5 MPa. The inner container is made of polytetrafluoroethylene, so that the inner container has the characteristics of excellent heat resistance and cold resistance, acid resistance, alkali resistance and various organic solvents resistance, can be used at the temperature of minus 180-260 ℃ for a long time, and is almost insoluble in all solvents. Therefore, the organic decomposition of the waste material in the subcritical hydrolysis treatment apparatus 3 can be facilitated.

In a preferred embodiment, the press dewatering device 2 may be a variable diameter screw press dewatering device. The reducing screw extruding and dewatering device can be a reducing screw extruder which is conventionally used in the prior art, and the structure of the reducing screw extruder is only briefly described below. The extrusion dehydration device 2 can comprise a frame and a driving mechanism, a screw is rotatably arranged on the frame, the driving mechanism is in transmission connection with the screw, and a cover body is arranged on the periphery of the screw; a screen cylinder is arranged between the cover body and the screw rod, and a liquid outlet is arranged at the bottom of the screen cylinder; the device also comprises a feed inlet communicated with one end of the screen drum and a slag outlet communicated with the other end of the screen drum; from the feed end to the discharge end, the diameter of the screw increases gradually, and the pitch of the screw thread on the screw decreases gradually. So, through the adjustment of screw rod diameter and screw thread pitch for from feed end to discharge end, the space that can hold the material between a sieve section of thick bamboo and screw rod reduces gradually, guarantees along with moisture loss, and the solid phase material still can receive great extrusion force, thereby can promote the solid-liquid separation effect effectively.

In a preferred embodiment, the exhaust gas treatment device 5 may include a UV photolysis unit and an activated carbon adsorption unit. The exhaust gas received by the exhaust gas treatment device 5 according to the present invention contains a certain amount of odorous components, typically predominantly ammonia, followed by traces of carbon disulphide, possibly other traces of odorous components than the above mentioned gas components. The waste gas treatment device 5 of the embodiment of the invention adopts a mode of 'UV photolysis + activated carbon adsorption' to deodorize waste gas, the UV photolysis unit is provided with a UV lamp tube, the UV lamp tube can release high-energy UV light beams, the light beams can break chemical bonds of waste gas components on one hand to form free atoms or groups, on the other hand, oxygen in the waste gas can be cracked, then the oxygen is combined to generate ozone, and the ozone participates in the reaction, so that odor components are finally cracked and oxidized into simple stable compounds. The waste gas may still contain trace amount of odor components after passing through the UV photolysis unit, and finally, the waste gas is subjected to activated carbon adsorption treatment, and activated carbon is filled in the activated carbon adsorption unit and can adsorb the residual odor components. After the treatment, the waste gas can reach the standard emission.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (9)

1. A modular organic waste management system, comprising: the device comprises a garbage pretreatment device, an extrusion dehydration device, a subcritical hydrolysis treatment device, a centrifugal separation device, a waste gas treatment device and a wastewater treatment device, wherein the garbage pretreatment device is used for screening and crushing garbage materials; the extrusion dehydration device is used for dehydrating the screened and crushed garbage materials; the subcritical hydrolysis treatment device is used for organically decomposing the dewatered garbage materials, and the waste gas generated by the organic decomposition enters the waste gas treatment device for harmless treatment; the centrifugal separation device is used for carrying out solid-liquid separation on the garbage materials after organic decomposition, and wastewater generated by the solid-liquid separation and wastewater generated by the extrusion dehydration device enter the wastewater treatment device for harmless treatment.

2. The modular organic waste treatment system of claim 1, wherein the waste pretreatment device comprises a vibratory screening device and a shear crushing device, wherein the vibratory screening device is configured to receive waste material and screen the waste material into kitchen waste and non-kitchen waste; the shearing and crushing device is used for receiving the kitchen waste and crushing the kitchen waste into material particles with preset sizes.

3. The modular organic waste management system of claim 2, wherein the material particles have a particle size of 10mm or less.

4. The modular organic waste management system of claim 2, wherein the shear crushing device is a multi-shaft shear crushing apparatus or a multi-stage shear crushing apparatus.

5. The modular organic waste treatment system according to any one of claims 1 to 4, wherein the waste water treatment device comprises an oil-water separation device and an electric flocculation waste water treatment device, wherein the oil-water separation device is used for receiving the waste water generated by the extrusion dehydration device and performing oil-water separation on the waste water, and grease generated after the oil-water separation is recycled; the electric flocculation wastewater treatment device is used for receiving and treating wastewater generated after oil-water separation of the oil-water separation device and receiving wastewater generated by the centrifugal separation device so as to enable the wastewater to reach the discharge standard.

6. The modular organic waste treatment system of claim 5, wherein the electrodes in the electrolysis zone of the electrocoagulation waste water treatment apparatus are in a coated anode structure or a three-dimensional electrode structure.

7. The modular organic waste treatment system according to any one of claims 1 to 4, wherein the inner container of the subcritical hydrolysis treatment device is made of polytetrafluoroethylene.

8. The modular organic waste management system of any one of claims 1 to 4, wherein the press dehydration apparatus is a variable diameter screw press dehydration apparatus.

9. The modular organic waste treatment system according to any one of claims 1 to 4, wherein the exhaust gas treatment device comprises a UV photolysis unit and an activated carbon adsorption unit.

Images