A skid-mounted integrated garbage thermal hydrolysis treatment device and method

Abstract

The invention relates to the technical field of kitchen waste treatment, and discloses a skid-mounted integrated garbage thermal hydrolysis treatment device and method. A first skid-mounted unit and a second skid-mounted unit are integrated into a garbage thermal hydrolysis treatment device. The first skid-mounted unit and the second skid-mounted unit can be placed on two transport vehicles respectively and transported to a destination for garbage treatment. The garbage at the destination can be effectively and quickly treated without the need to transport the garbage to a landfill for treatment, thereby saving transportation costs. In the process of thermal hydrolysis of garbage, cellulose, starch, and fat organic matter in the garbage are made into slurry through a pretreatment unit in the first skid-mounted unit, and oil-water separation is performed in the first thermal hydrolysis unit and the second thermal hydrolysis unit in turn, and the oil phase product is recovered, and the water phase product is prepared to produce fertilizer, thereby improving the garbage treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste treatment, and in particular to a skid-mounted integrated garbage thermal hydrolysis treatment device and method. Background Art

[0002] Catering waste refers to the leftovers from restaurants, canteens and other catering industries. It is characterized by large production volume, relatively concentrated quantity and wide distribution. Due to the complex composition of catering waste, on the one hand, it has a high water content and is easy to cause environmental pollution, so it is not suitable for direct landfill and incineration; on the other hand, grease seeps into the leachate system, which will affect the operation of the relevant treatment membrane system.

[0003] At present, the treatment method for catering waste is scattered point collection + centralized treatment, that is, the barreled catering waste generated daily from various catering service points is collected in catering waste transport vehicles, and then transported to catering waste treatment stations for centralized treatment. At present, the mainstream treatment methods in my country include biological transformation and anaerobic digestion.

[0004] Biological conversion refers to the conversion of solid organic matter after three-phase separation of food waste into a humified pile and obtaining specific organisms with economic value. This method has a long treatment cycle, occupies a large amount of land, and is prone to cause environmental pollution. Anaerobic digestion treatment refers to the multiple decomposition of organic matter in food waste by the synergistic action of a variety of anaerobic microbial flora under anaerobic or anoxic conditions, and finally produces methane and carbon dioxide. The generated biogas can be used for heating, power generation, and purification of natural gas, and the generated biogas residues and liquid can be used as biological organic fertilizers. This method has a short treatment cycle, but requires a large number of supporting equipment (such as biogas storage tanks, liquid biogas storage tanks, and wastewater treatment equipment).

[0005] With the continuous growth of my country's urban population and the improvement of people's living standards, the output of catering waste in urban areas has increased year by year, and the catering waste treatment load has also increased year by year. However, in urban areas where every inch of land is valuable, the construction of large-scale catering waste treatment equipment requires a large amount of land, and because of the odor generated, residents in the project area are often very disgusted and protest collectively, making it difficult to select a site for catering waste treatment plants. If the device is built in suburban areas, the transportation distance of catering waste will be too long and the cost of transportation will increase. Under the existing technology, the use of a large number of transport vehicles to collect catering waste from all over the city and transport it to the suburbs for treatment is obviously contrary to the purpose of energy conservation and carbon reduction.

[0006] Generally speaking, the current technical problems in the treatment of catering waste include the following:

[0007] 1. Difficulty in site selection: The core reaction process of the entire treatment device is carried out in a storage tank, which has a large treatment volume and a long reaction time, so a large amount of land is required. In addition, since the centralized treatment point of this kind of domestic waste is set up near residential areas, the construction of the project requires approval from multiple functional departments such as environmental protection, health, and urban management. Therefore, the site is limited, it is difficult to start construction, and it is difficult to select a site in urban areas;

[0008] 2. Limited processing capacity: This type of centralized large-scale processing device is generally designed and constructed in the early stage, and the processing scale and maximum processing capacity are uniquely determined, and the processing capacity cannot be expanded or reduced. With the increase in the proportion of urban population in my country, the fixed-scale processing devices that have been built cannot meet the demand for increased catering waste processing.

[0009] 3. Long transportation distance: For urban catering waste treatment, if the centralized treatment device is built in the suburbs, a large number of transport vehicles will use high-value energy (electricity, gasoline) to transport low-value products (catering waste), resulting in serious waste of resources and not conducive to the realization of carbon neutrality goals. For rural areas, since the daily output of catering waste in each village is limited, and the population density of each village is low, the point sources of catering waste are more dispersed. No matter where the centralized treatment device is built, a large amount of transportation will occur. Summary of the invention

[0010] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a skid-mounted integrated garbage thermal hydrolysis treatment device and method to solve the technical problem in the prior art that garbage cannot be processed quickly and centrally.

[0011] The present invention is achieved through the following technical solutions:

[0012] A skid-mounted integrated garbage thermal hydrolysis treatment device comprises a first skid-mounted unit and a second skid-mounted unit, wherein the first skid-mounted unit comprises a first frame, a pretreatment unit, a thermal oil heating unit and a first thermal hydrolysis unit; the second skid-mounted unit comprises a second frame, a second thermal hydrolysis unit, an odor treatment unit, a fertilizer blending unit, a recovered oil storage area and a control system; the pretreatment unit, the thermal oil heating unit and the first thermal hydrolysis unit are all mounted on a bottom plate in the first frame; the second thermal hydrolysis unit, the odor treatment unit, the fertilizer blending unit and the control system are all mounted on the bottom plate in the second frame; the output end of the pretreatment unit is connected to the first thermal hydrolysis unit; the output end of the first thermal hydrolysis unit is connected to the input end of the second thermal hydrolysis unit, and the output end of the second thermal hydrolysis unit is connected to the fertilizer blending unit; the thermal oil heating unit and the odor treatment unit are respectively connected to the pretreatment unit, the first thermal hydrolysis unit and the second thermal hydrolysis unit; the control end of the control system is respectively connected to the control ends of the pretreatment unit, the thermal oil heating unit, the first thermal hydrolysis unit, the second thermal hydrolysis unit, the odor treatment unit and the fertilizer blending unit, and the output oil of the first thermal hydrolysis unit and the second thermal hydrolysis unit are both placed in the recovered oil storage area.

[0013] Preferably, the pretreatment unit includes a discharge hopper, a shredder, a screw conveyor, a crushing pulping machine and a slurry delivery pump; the shredder is located at the lower outlet of the discharge hopper, one end of the screw conveyor is located at the output end of the shredder, and the other end is placed at the input end of the crushing pulping machine, and the output end of the crushing pulping machine is connected to the first thermal hydrolysis unit through a slurry delivery pump; the heat exchange port of the discharge hopper is connected to the thermal oil heating unit, and the odor discharge end of the discharge hopper is connected to the odor treatment unit.

[0014] Preferably, the first thermal hydrolysis unit includes a slurry tank transfer pump, a slurry tank, a grinding pump, a cache tank and a No. 1 oil tank; the input end of the cache tank is connected to the output end of the pretreatment unit, the output end of the cache tank is connected to the input end of the slurry tank through the grinding pump, the output end of the slurry tank is connected to the second thermal hydrolysis unit through the slurry tank transfer pump, the cache tank is provided with an oil separation port, the oil separation port is connected to the No. 1 oil tank, and the recovered oil in the No. 1 oil tank is placed in the recovered oil storage area; the heat exchange ports of the slurry tank and the cache tank are connected to the thermal oil heating unit, and the odor emission ends of the slurry tank and the cache tank are connected to the odor treatment unit.

[0015] Preferably, the second thermal hydrolysis unit comprises a hydrolysis product delivery pump, a hydrolysis tank, a No. 2 oil tank, an oil separator and a delivery pump, the input end of the hydrolysis tank is connected to the output end of the first thermal hydrolysis unit, the output end of the hydrolysis tank is connected to the input end of the oil separator through the hydrolysis product delivery pump, the output end of the oil separator is connected to the fertilizer blending unit through the delivery pump, the oil separator is provided with an oil separation end, the oil separation end is connected to the No. 2 oil tank, the recovered oil in the No. 2 oil tank is placed in a recovered oil storage area, the heat exchange port of the hydrolysis tank is connected to the thermal oil heating unit, and the odor discharge end of the hydrolysis tank is connected to the odor treatment unit.

[0016] Preferably, the fertilizer mixing unit comprises a fertilizer storage area, a fertilizer mixing tank and a raw material storage area; the input end of the fertilizer mixing tank is connected to the output end of the second thermal hydrolysis unit, the top of the fertilizer mixing tank is provided with a fertilizer mixing tank input port, the fertilizer mixing tank input port is located at the raw material storage area, and a quantitative dosing machine is placed in the raw material storage area; the output end at the bottom of the fertilizer mixing tank is connected to the fertilizer storage area.

[0017] Preferably, the thermal oil heating unit comprises a thermal oil pump, a heater and a thermal oil tank, wherein the heater is mounted on the thermal oil tank, and the output end of the thermal oil tank is respectively connected to the heat exchange ends of the pretreatment unit, the first thermal hydrolysis unit and the second thermal hydrolysis unit through the thermal oil pump.

[0018] Preferably, the odor treatment unit comprises an alkali washing tower, an induced draft fan and an activated carbon adsorption box, and the input ends of the activated carbon adsorption box and the alkali washing tower are respectively connected to the pretreatment unit, the first thermal hydrolysis unit and the second thermal hydrolysis unit through the induced draft fan.

[0019] Preferably, the control system includes a controller, an input end of the controller is connected to a signal input module, an output end of the controller is connected to a signal output end, the signal input end is connected to a signal acquisition module, the signal acquisition module is arranged in a pretreatment unit, a thermal oil heating unit, a first thermal hydrolysis unit, a second thermal hydrolysis unit, an odor treatment unit and a fertilizer blending unit, and a signal output end is connected to a drive module, and the drive module is respectively connected to the drive ends of the pretreatment unit, the thermal oil heating unit, the first thermal hydrolysis unit, the second thermal hydrolysis unit, the odor treatment unit and the fertilizer blending unit.

[0020] Preferably, the first skid-mounted unit and the second skid-mounted unit are connected via pipelines and circuits.

[0021] A skid-mounted integrated garbage thermal hydrolysis treatment method, based on the above-mentioned skid-mounted integrated garbage thermal hydrolysis treatment device, comprises the following steps:

[0022] Step 1: The garbage first enters the pretreatment unit to crush and separate inorganic substances such as metals, glass bottles, and rags in the garbage, and make cellulose, starch, and fat organic substances in the garbage into slurry;

[0023] Step 2, after the garbage is pulped in the pretreatment unit, it enters the first thermal hydrolysis unit and the second thermal hydrolysis unit in sequence, first performs preliminary buffer sand removal, then performs preliminary oil separation, and then performs high-temperature thermal hydrolysis to thermally hydrolyze the cellulose, starch, fat, and protein organic matter in the garbage into monosaccharides and amino acid small molecule compounds; during the reaction process, a thermal oil heating unit is used to efficiently exchange heat between the pretreatment unit, the first thermal hydrolysis unit, and the second thermal hydrolysis unit, and the odor generated by the pretreatment unit, the first thermal hydrolysis unit, and the second thermal hydrolysis unit is treated by an odor treatment unit;

[0024] Step 3, performing preliminary oil-water separation on the products after the first thermal hydrolysis unit and the second thermal hydrolysis unit, recovering the oil phase product, blending the water phase product to produce fertilizer, and filling and storing it.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] The present invention provides a skid-mounted integrated garbage thermal hydrolysis treatment device, which is integrated into a garbage thermal hydrolysis treatment device through a first skid-mounted unit and a second skid-mounted unit. The first skid-mounted unit and the second skid-mounted unit can be placed on two transport vehicles respectively and transported to a destination for garbage treatment. The garbage at the destination can be effectively and quickly treated without the need to transport the garbage to a landfill for treatment, thereby saving transportation costs. During the garbage thermal hydrolysis process, cellulose, starch, and fat organic matter in the garbage are made into slurry through the pretreatment unit in the first skid-mounted unit, and the first thermal hydrolysis unit and the second thermal hydrolysis unit are used in turn for oil-water separation, and the oil phase product is recovered, and the water phase product is prepared to produce fertilizer, thereby improving the garbage treatment efficiency.

[0027] Furthermore, the pretreatment unit can effectively convert cellulose, starch, fat and other organic matter in the garbage into slurry, so that the slurry can flow into the first thermal hydrolysis unit and the second thermal hydrolysis unit for oil-water separation.

[0028] Furthermore, the first thermal hydrolysis unit and the second thermal hydrolysis unit effectively separate the slurry into oil and water, wherein the oil phase is recovered and the water phase product is blended to produce fertilizer, thereby improving the efficiency of centralized waste treatment.

[0029] Furthermore, the fertilizer preparation unit facilitates the preparation of fertilizer for the aqueous phase product, thereby improving the utilization rate of fertilizer after garbage treatment.

[0030] Furthermore, the thermal oil heating unit improves the heat exchange efficiency of the pretreatment unit, the first thermal hydrolysis unit and the second thermal hydrolysis unit respectively.

[0031] Furthermore, the odor treatment unit is fully sealed during the entire operation process, and all odors generated by each tank are discharged after being treated, thus avoiding air pollution during the treatment process.

[0032] The present invention also provides a skid-mounted integrated garbage thermal hydrolysis treatment device, which takes hydrothermal liquefaction technology as the core, optimizes the structure of each device in the system and arranges the system space compactly, and adopts a modular installation concept. Hydrothermal liquefaction is a process of thermally cracking biomass with a macromolecular structure into small molecular liquid fuel under high temperature (180-280°C), high pressure (5-20MPa), and water as a reaction medium (or other organic solvents or other catalytic aqueous solutions). The hydrothermal liquefaction method is used to treat catering waste, which has the advantages of fast reaction speed, wide adaptability of raw materials, energy saving and thorough harmlessness. It is an excellent process with thorough harmlessness and maximum resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of a skid-mounted integrated garbage thermal hydrolysis treatment device in the present invention;

[0034] Figure 2 It is a structural schematic diagram of one side of the first skid-mounted unit in the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the other side of the first skid-mounted unit in the present invention;

[0036] Figure 4 A top view of the first skid-mounted unit in the present invention;

[0037] Figure 5 It is a structural schematic diagram of one side of the second skid-mounted unit in the present invention;

[0038] Figure 6 It is a schematic diagram of the structure of the other side of the second skid-mounted unit in the present invention;

[0039] Figure 7 is a top view of the second skid-mounted unit in the present invention;

[0040] Figure 8 It is a schematic diagram of transporting the skid-mounted integrated garbage thermal hydrolysis treatment device of the present invention.

[0041] In the figure: 1-discharging hopper; 2-shredder; 3-screw conveyor; 4-crushing pulping machine; 5-slurry delivery pump; 6-thermal oil module; 61 thermal oil pump; 62 heater; 63 thermal oil tank; 7-slurry tank delivery pump; 8-slurry tank; 9-grinding pump; 10- cache tank; 11- No. 1 oil tank; 12- hydrolysis product delivery pump; 13- hydrolysis tank; 14- No. 2 oil tank; 15- oil separator; 16- delivery pump; 17- fertilizer storage area; 18- recovered oil storage area; 19- locker; 20- induced draft fan; 21- activated carbon adsorption box; 22- alkali washing tower; 23- fertilizer mixing tank; 24- quantitative dosing machine; 25- raw material storage area; 26- control box; 27- pretreatment unit; 28- heat transfer oil heating unit; 29- first thermal hydrolysis unit; 30- second thermal hydrolysis unit; 31- odor treatment unit; 32- fertilizer mixing unit; 33- control system; 34- first frame; 35- second frame; 231- fertilizer mixing tank input port. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0045] The object of the present invention is to provide a skid-mounted integrated garbage thermal hydrolysis treatment device and method to solve the technical problem in the prior art that garbage cannot be processed quickly and centrally.

[0046] Specifically, according to Figure 1As shown, the skid-mounted integrated garbage thermal hydrolysis treatment device includes a first skid-mounted unit and a second skid-mounted unit. The first skid-mounted unit includes a first frame 34, a pretreatment unit 27, a thermal oil heating unit 28 and a first thermal hydrolysis unit 29. Figure 2 , Figure 3 and Figure 4 The second skid-mounted unit includes a second frame 35, a second thermal hydrolysis unit 30, an odor treatment unit 31, a fertilizer blending unit 32, a recovered oil storage area 18 and a control system 33, as shown Figure 5 , Figure 6 and Figure 7 As shown; the pretreatment unit 27, the thermal oil heating unit 28 and the first thermal hydrolysis unit 29 are all assembled on the bottom plate in the first frame 34; the second thermal hydrolysis unit 30, the odor treatment unit 31, the fertilizer mixing unit 32 and the control system 33 are all assembled on the bottom plate in the second frame 35; the output end of the pretreatment unit 27 is connected to the first thermal hydrolysis unit 29; the output end of the first thermal hydrolysis unit 29 is connected to the input end of the second thermal hydrolysis unit 30, and the output end of the second thermal hydrolysis unit 30 is connected to the fertilizer mixing unit 32; the thermal oil heating unit 28 and the odor treatment unit 31 are respectively connected to the pretreatment unit 27, the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30; the control end of the control system 33 is respectively connected to the control end of the pretreatment unit 27, the thermal oil heating unit 28, the first thermal hydrolysis unit 29, the second thermal hydrolysis unit 30, the odor treatment unit 31 and the fertilizer mixing unit 32, and the output oil of the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30 are both placed in the recovered oil storage area 18.

[0047] Specifically, according to Figure 2 and Figure 3 As shown, the pretreatment unit 27 includes a discharge hopper 1, a shredder 2, a screw conveyor 3, a crushing pulping machine 4 and a slurry conveying pump 5; the shredder 2 is located at the lower outlet of the discharge hopper 1, one end of the screw conveyor 3 is located at the output end of the shredder 2, and the other end is placed at the input end of the crushing pulping machine 4, and the output end of the crushing pulping machine 4 is connected to the first thermal hydrolysis unit 29 through the slurry conveying pump 5; the heat exchange port of the discharge hopper 1 is connected to the thermal oil heating unit 28, and the odor discharge end of the discharge hopper 1 is connected to the odor treatment unit 31.

[0048] Specifically, according to Figure 2 , Figure 3 and Figure 4As shown; the first thermal hydrolysis unit 29 includes a slurry tank delivery pump 7, a slurry tank 8, a grinding pump 9, a buffer tank 10 and a No. 1 oil tank 11; the input end of the buffer tank 10 is connected to the output end of the pretreatment unit 27, the output end of the buffer tank 10 is connected to the input end of the slurry tank 8 through the grinding pump 9, and the output end of the slurry tank 8 is connected to the second thermal hydrolysis unit 29 through the tank delivery pump 7, the buffer tank 10 is provided with an oil separation port, the oil separation port is connected to the No. 1 oil tank 11, the buffer tank 10 performs preliminary oil-water separation, and the separated recovered oil flows into the No. 1 oil tank 11 by gravity, so the bottom height of the buffer tank 10 is higher than the material inlet of the No. 1 oil tank 11. The recovered oil in the No. 1 oil tank 11 is placed in the recovered oil storage area 18; the heat exchange ports of the slurry tank 8 and the buffer tank 10 are connected to the thermal oil heating unit 28, and the odor discharge ends of the slurry tank 8 and the buffer tank 10 are connected to the odor treatment unit 31.

[0049] Specifically, according to Figure 5 As shown, the second thermal hydrolysis unit 30 includes a hydrolyzate delivery pump 12, a hydrolysis tank 13, a No. 2 oil tank 14, an oil separator 15 and a delivery pump 16. The input end of the hydrolysis tank 13 is connected to the output end of the first thermal hydrolysis unit 29. The output end of the hydrolysis tank 13 is connected to the input end of the oil separator 15 through the hydrolysis product delivery pump 12. The output end of the oil separator 15 is connected to the fertilizer blending unit 32 through the delivery pump 16. The oil separator 15 is provided with an oil separation end, which is connected to the No. 2 oil tank 14. The oil separator 15 separates the oil and water in the hydrolyzate, and the separated recovered oil flows into the No. 2 oil tank 11 by gravity. Therefore, the bottom height of the oil separator 15 is higher than the material inlet of the No. 2 oil tank 14. The recovered oil in the No. 2 oil tank 14 is placed in the recovered oil storage area 18. The heat exchange port of the hydrolysis tank 13 is connected to the thermal oil heating unit 28. The odor discharge end of the hydrolysis tank 13 is connected to the odor treatment unit 31.

[0050] Specifically, according to 5. Figure 6 and Figure 7 As shown, the fertilizer preparation unit 32 includes a fertilizer storage area 17, a fertilizer preparation tank 23 and a raw material storage area 25; the input end of the fertilizer preparation tank 23 is connected to the output end of the second thermal hydrolysis unit 30, and a fertilizer preparation tank input port 231 is provided on the top of the fertilizer preparation tank 23, and the fertilizer preparation tank input port 231 is located in the raw material storage area 25, and a quantitative dosing machine 24 is placed in the raw material storage area 25; the output end at the bottom of the fertilizer preparation tank 23 is connected to the fertilizer storage area 17.

[0051] Specifically, according to Figure 4As shown, the thermal oil heating unit 28 includes a thermal oil pump 61, a heater 62 and a thermal oil tank 63. The heater 62 is assembled on the thermal oil tank 63. The output end of the thermal oil tank 63 is connected to the heat exchange ends of the pretreatment unit 27, the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30 respectively through the thermal oil pump 61.

[0052] Specifically, according to Figure 6 As shown, the odor treatment unit 31 includes an alkali washing tower 22, an induced draft fan 20 and an activated carbon adsorption box 21, and the input ends of the activated carbon adsorption box 21 and the alkali washing tower 22 are respectively connected to the pretreatment unit 27, the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30 through the induced draft fan 20. Wherein, under the attraction of the fan, the odor generated by the discharge hopper 1, the buffer tank 10, the slurry tank 7 and the hydrolysis tank 13 is sucked into the activated carbon adsorption box 21 and the alkali washing tower 22 for treatment.

[0053] Specifically, the control system 33 includes a controller, an input end of the controller is connected to a signal input module, an output end of the controller is connected to a signal output end, the signal input end is connected to a signal acquisition module, the signal acquisition module is arranged in the pretreatment unit 27, the thermal oil heating unit 28, the first thermal hydrolysis unit 29, the second thermal hydrolysis unit 30, the odor treatment unit 31 and the fertilizer blending unit 32, and the signal output end is connected to a drive module, and the drive module is respectively connected to the drive ends of the pretreatment unit 27, the thermal oil heating unit 28, the first thermal hydrolysis unit 29, the second thermal hydrolysis unit 30, the odor treatment unit 31 and the fertilizer blending unit 32.

[0054] Specifically, the first skid-mounted unit and the second skid-mounted unit are directly connected via pipelines and circuits, and two independent units are obtained by splitting the pipelines and circuits.

[0055] In the present invention, a storage cabinet 19 is further provided in the second skid-mounted unit for storing articles.

[0056] A skid-mounted integrated garbage thermal hydrolysis treatment method, based on the above-mentioned skid-mounted integrated garbage thermal hydrolysis treatment device, comprises the following steps:

[0057] Step 1, the garbage first enters the pre-treatment unit 27, the metal, glass bottles, rags and other inorganic substances in the garbage are crushed and separated, and the cellulose, starch, fat organic substances in the garbage are made into slurry;

[0058] Step 2, after the garbage is pulped in the pretreatment unit 27, it enters the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30 in sequence, firstly performs preliminary buffering and sand removal, then performs preliminary oil separation, and then performs high-temperature thermal hydrolysis to thermally hydrolyze the cellulose, starch, fat, and protein organic matter in the garbage into monosaccharides and amino acid small molecule compounds; during the reaction process, the thermal oil heating unit 28 is used to efficiently exchange heat between the pretreatment unit 27, the first thermal hydrolysis unit 29, and the second thermal hydrolysis unit 30, and the odor generated by the pretreatment unit 27, the first thermal hydrolysis unit 29, and the second thermal hydrolysis unit 30 is treated by the odor treatment unit 31;

[0059] Step 3, the products after the first thermal hydrolysis unit 29 and the second thermal hydrolysis unit 30 are subjected to preliminary oil-water separation, the oil phase product is recovered, the water phase product is blended to produce fertilizer, and then bottled and stored.

[0060] Example

[0061] This embodiment provides a skid-mounted integrated garbage thermal hydrolysis treatment device, which is transported from location A to location B for garbage treatment. Figure 8 As shown, the specific process is as follows:

[0062] 1) At present, the catering waste thermal hydrolysis treatment skid-mounted device is treating catering waste at site A. After the treatment is completed, it is planned to move to site B to carry out work.

[0063] 2) Shut down the system, remove the connecting pipes between the first skid-mounted unit and the second skid-mounted unit, and remove all power wires, supporting water supply pipelines, etc.

[0064] 3) Lift the first skid-mounted unit and the second skid-mounted unit onto two van trucks respectively and send them to site B.

[0065] 4) After arriving at site B, the first skid-mounted unit and the second skid-mounted unit are hoisted down from the van truck respectively, and the two are arranged end to end.

[0066] 5) The connecting pipes between the first skid-mounted unit and the second skid-mounted unit are removed, and the power wires, supporting water supply pipelines, etc. are all reinstalled.

[0067] 6) After the transfer is completed, the skid-mounted device for thermal hydrolysis of catering waste can continue to operate at site B.

[0068] In summary, the present invention provides a skid-mounted integrated garbage thermal hydrolysis treatment device that can be produced as a whole in a processing plant. After arriving at the site, it can be used normally by simply connecting skid 1 and skid 2 together. The construction period is greatly shortened. Moreover, each device in the system can be ordered from upstream manufacturers in large quantities and single specifications. On the one hand, it can lower the purchase price, and on the other hand, it is conducive to the formation of standardized devices, avoiding the system from being unable to operate due to incorrect equipment selection.

[0069] The device can be flexibly moved, which is very suitable for the current catering waste treatment in urban areas of my country: the catering industry in urban areas is scattered, and it is difficult to find large-scale land to build a centralized catering waste treatment device in urban areas where every inch of land is valuable. The device is installed on two skids that meet the conditions of road transportation, and can be flexibly transferred between various districts in urban areas. In the future, multiple catering waste recovery and storage stations (completely sealed, no odor) will be set up in the urban area. When the catering waste storage volume of storage station A reaches a certain amount, the catering waste thermal hydrolysis treatment skid-mounted device of the present invention will be transported to storage station A. Only an open space and simple water and electricity conditions are needed to realize the catering waste treatment of storage station A. After the treatment is completed, the device will be transported to another storage station to continue working. Through the above method, not only the space occupied is small, but also the complicated procedures required for the construction of a centralized treatment device are eliminated, which effectively improves efficiency and reduces costs.

[0070] Similarly, this device is suitable for the treatment of catering waste in rural areas. Since the daily output of catering waste in each village and town is limited, and the population density of each village and town is low, the point sources of catering waste are more dispersed. No matter where a centralized treatment device is built, long-distance transportation will occur. Therefore, a catering waste recycling and storage station (completely sealed, no odor) can be set up in each village and town, and the catering waste in various places can be treated in turn by transporting and treating the device. Moreover, the fertilizer produced by this device is suitable for crops in rural areas. The device can be directly arranged in the fields, and the fertilizer produced after treatment can be directly applied, which effectively reduces the cost of fertilizer transportation and benefits farmers.

[0071] The device is equipped with an odor treatment device, and the entire operation process is fully sealed. The odors generated by each tank are all discharged after odor treatment, avoiding air pollution during the treatment process. It will not cause rejection and solutions from nearby residents.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A skid-mounted integrated garbage thermal hydrolysis treatment device, characterized in that: The invention comprises a first skid-mounted unit and a second skid-mounted unit, wherein the first skid-mounted unit comprises a first frame (34), a pretreatment unit (27), a thermal oil heating unit (28) and a first thermal hydrolysis unit (29); the second skid-mounted unit comprises a second frame (35), a second thermal hydrolysis unit (30), an odor treatment unit (31), a fertilizer preparation unit (32), a recovered oil storage area (18) and a control system (33); the pretreatment unit (27), the thermal oil heating unit (28) and the first thermal hydrolysis unit (29) are all mounted on a bottom plate in the first frame (34); the second thermal hydrolysis unit (30), the odor treatment unit (31), the fertilizer preparation unit (32) and the control system (33) are all mounted on a bottom plate in the second frame (35); the output end of the pretreatment unit (27) is connected to the a first thermal hydrolysis unit (29); an output end of the first thermal hydrolysis unit (29) is connected to an input end of a second thermal hydrolysis unit (30), and an output end of the second thermal hydrolysis unit (30) is connected to a fertilizer preparation unit (32); a thermal oil heating unit (28) and an odor treatment unit (31) are respectively connected to a pretreatment unit (27), the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30); a control end of a control system (33) is respectively connected to control ends of the pretreatment unit (27), the thermal oil heating unit (28), the first thermal hydrolysis unit (29), the second thermal hydrolysis unit (30), the odor treatment unit (31) and the fertilizer preparation unit (32); and the output oils of the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30) are both placed in a recovered oil storage area (18); The pretreatment unit (27) comprises a discharge hopper (1), a shredder (2), a screw conveyor (3), a crushing pulping machine (4) and a slurry delivery pump (5); the shredder (2) is located at the lower outlet of the discharge hopper (1); one end of the screw conveyor (3) is located at the output end of the shredder (2) and the other end is placed at the input end of the crushing pulping machine (4); the output end of the crushing pulping machine (4) is connected to the first thermal hydrolysis unit (29) via the slurry delivery pump (5); the heat exchange port of the discharge hopper (1) is connected to the thermal oil heating unit (28); the odor discharge end of the discharge hopper (1) is connected to the odor treatment unit (31); The first thermal hydrolysis unit (29) comprises a slurry tank delivery pump (7), a slurry tank (8), a grinding pump (9), a buffer tank (10) and a No. 1 oil tank (11); the input end of the buffer tank (10) is connected to the output end of the pretreatment unit (27), the output end of the buffer tank (10) is connected to the input end of the slurry tank (8) through the grinding pump (9), the output end of the slurry tank (8) is connected to the second thermal hydrolysis unit (30) through the slurry tank delivery pump (7), the buffer tank (10) is provided with an oil separation port, the oil separation port is connected to the No. 1 oil tank (11), and the recovered oil in the No. 1 oil tank (11) is placed in a recovered oil storage area (18); the heat exchange ports of the slurry tank (8) and the buffer tank (10) are connected to the thermal oil heating unit (28), and the odor discharge ends of the slurry tank (8) and the buffer tank (10) are connected to the odor treatment unit (31); The second thermal hydrolysis unit (30) comprises a hydrolysis product delivery pump (12), a hydrolysis tank (13), a second oil tank (14), an oil separator (15) and a delivery pump (16); the input end of the hydrolysis tank (13) is connected to the output end of the first thermal hydrolysis unit (29); the output end of the hydrolysis tank (13) is connected to the input end of the oil separator (15) via the hydrolysis product delivery pump (12); the output end of the oil separator (15) is connected to the fertilizer blending unit (32) via the delivery pump (16); the oil separator (15) is provided with an oil separation end, which is connected to the second oil tank (14); the recovered oil in the second oil tank (14) is placed in a recovered oil storage area (18); the heat exchange port of the hydrolysis tank (13) is connected to the thermal oil heating unit (28); and the odor discharge end of the hydrolysis tank (13) is connected to the odor treatment unit (31); The fertilizer preparation unit (32) comprises a fertilizer storage area (17), a fertilizer preparation tank (23) and a raw material storage area (25); the input end of the fertilizer preparation tank (23) is connected to the output end of the second thermal hydrolysis unit (30); a fertilizer preparation tank input port (231) is provided on the top of the fertilizer preparation tank (23); the fertilizer preparation tank input port (231) is located at the raw material storage area (25), and a quantitative dosing machine (24) is placed in the raw material storage area (25); the output end at the bottom of the fertilizer preparation tank (23) is connected to the fertilizer storage area (17); The thermal oil heating unit (28) comprises a thermal oil pump (61), a heater (62) and a thermal oil tank (63); the heater (62) is mounted on the thermal oil tank (63); and the output end of the thermal oil tank (63) is respectively connected to the heat exchange ends of the pretreatment unit (27), the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30) through the thermal oil pump (61).

2. A skid-mounted integrated garbage thermal hydrolysis treatment device according to claim 1, characterized in that: The odor treatment unit (31) comprises an alkali washing tower (22), an induced draft fan (20) and an activated carbon adsorption box (21), wherein the input ends of the activated carbon adsorption box (21) and the alkali washing tower (22) are respectively connected to the pretreatment unit (27), the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30) through the induced draft fan (20).

3. The skid-mounted integrated garbage thermal hydrolysis treatment device according to claim 1, characterized in that: The control system (33) comprises a controller, wherein an input end of the controller is connected to a signal input module, an output end of the controller is connected to a signal output end, the signal input end is connected to a signal acquisition module, the signal acquisition module is arranged in a pre-processing unit (27), a thermal oil heating unit (28), a first thermal hydrolysis unit (29), a second thermal hydrolysis unit (30), an odor treatment unit (31) and a fertilizer preparation unit (32), and the signal output end is connected to a drive module, and the drive module is respectively connected to the drive ends of the pre-processing unit (27), the thermal oil heating unit (28), the first thermal hydrolysis unit (29), the second thermal hydrolysis unit (30), the odor treatment unit (31) and the fertilizer preparation unit (32).

4. The skid-mounted integrated garbage thermal hydrolysis treatment device according to claim 1, characterized in that: The first skid-mounted unit and the second skid-mounted unit are connected via pipelines and circuits.

5. A skid-mounted integrated waste thermal hydrolysis treatment method, based on a skid-mounted integrated waste thermal hydrolysis treatment device according to any one of claims 1 to 4, characterized in that: The steps include: Step 1, the garbage first enters the pre-treatment unit (27), the metal, glass bottles, rags and inorganic substances in the garbage are crushed and separated, and the cellulose, starch, fat and organic substances in the garbage are made into slurry; Step 2, after the garbage is pulped in the pretreatment unit (27), it enters the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30) in sequence, firstly performs preliminary buffering and sand removal, then performs preliminary oil separation, and then performs high-temperature thermal hydrolysis to thermally hydrolyze the cellulose, starch, fat, and protein organic matter in the garbage into monosaccharides and amino acid small molecule compounds; during the reaction process, a thermal oil heating unit (28) is used to efficiently exchange heat between the pretreatment unit (27), the first thermal hydrolysis unit (29), and the second thermal hydrolysis unit (30), and the odor generated by the pretreatment unit (27), the first thermal hydrolysis unit (29), and the second thermal hydrolysis unit (30) is treated by an odor treatment unit (31); Step 3, the products after the first thermal hydrolysis unit (29) and the second thermal hydrolysis unit (30) are subjected to preliminary oil-water separation, the oil phase product is recovered, the water phase product is blended to produce fertilizer, and the fertilizer is bottled and stored.

Images