A kitchen waste resource utilization system

Abstract

The invention discloses a kitchen waste resource utilization system, which belongs to the technical field of kitchen waste, and includes a crushing system: the crushing system is connected with a filter pressing and sorting system; the filter pressing and sorting system is connected with a material pretreatment system, the material pretreatment system is connected with a hydrogen peroxide adding system, a heating tank and a heat exchanger, and the heat exchanger is connected with the heating tank; the heating tank is connected with a steam generator and a three-phase separator; the oil separated by the three-phase separator is sold directly, the solid enters a solid temporary storage system for temporary storage of solids, and the wastewater enters a butterfly separator for demulsification and filtration; the solid temporary storage system is connected with a butterfly separator, the solid temporary storage system is connected with a solid fermentation system for solid fermentation, and the solid temporary storage system is used to store solids. Through the above-mentioned method, the present invention realizes the maximum utilization of resources, and there is no product to be further processed, and at the same time, the water resources and heat sources in the system are recycled, saving water resources and energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste, and in particular to a kitchen waste resource utilization system. Background Art

[0002] Kitchen waste has a high content of organic matter, which accounts for about 80% to 90% of the dry matter mass. It is also rich in nitrogen, phosphorus, potassium, calcium and various trace elements. It has the characteristics of complete nutrients and high recycling value. At the same time, kitchen waste has the characteristics of complex foreign matter composition and high salt and oil content.

[0003] At present, the main kitchen waste (restaurant kitchen) waste treatment technologies in my country include anaerobic treatment, aerobic treatment and feed conversion. Among them, anaerobic treatment is the mainstream technology, which is widely advocated due to its mature technology, but it has high requirements for pretreatment technology and debugging; the biggest disadvantage of aerobic treatment technology is that there are problems such as excessive investment costs and poor product sales channels; feed conversion technology is currently hindered by safety issues.

[0004] Chinese patent CN113200768B discloses a kitchen waste treatment system in which a large amount of impurities are not further processed. The sewage needs to be discharged to the sewage treatment plant through pipelines or transportation equipment for treatment. Regardless of whether it is transported by the original route or by transportation equipment, the treatment cost will increase and resource utilization cannot be achieved. Chinese patent CN113955863B discloses a kitchen waste treatment system and treatment process that does not effectively pre-treat the garbage, which can easily cause high salt and oil content to impact the biochemical process. The wet heat pre-treatment uses a pressurized container that must be regularly calibrated and maintained, which is a safety issue. At the same time, the wastewater is not effectively recycled.

[0005] Based on this, the present invention designs a kitchen waste resource utilization system to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a kitchen waste resource utilization system.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A kitchen waste resource utilization system, comprising a crushing system for crushing kitchen waste:

[0009] The crushing system is connected to a filter press sorting system for solid-liquid separation and solid residue composting;

[0010] The filter press sorting system is connected to a material pretreatment system for changing material properties, the material pretreatment system is connected to a hydrogen peroxide adding system for adding hydrogen peroxide, a heating tank for hydrothermal pretreatment and a heat exchanger for preheating the filtrate, and the heat exchanger is connected to the heating tank;

[0011] The heating tank is connected to a steam generator for adding water vapor and a three-phase separator for three-phase separation;

[0012] The oil separated by the three-phase separator is sold directly, the solid enters the solid temporary storage system for solid temporary storage, and the wastewater enters the butterfly separator for demulsification and filtration;

[0013] The solid temporary storage system is connected to the butterfly separator, and the solid temporary storage system is connected to a solid fermentation system for solid fermentation. The solid temporary storage system is used to store solids and prepare slurry from the solids;

[0014] The solid fermentation system is connected to an enzyme adding system and an evaporation system for adding enzymes;

[0015] The evaporation system is connected with the heating tank, the solid temporary storage system and the steam generator. The water vapor passes through the heating tank to form hot condensed water which enters the evaporation system as the evaporation heat source. The condensed water passing through the evaporation system enters the solid temporary storage system for water replenishment and enters the steam generator for secondary utilization.

[0016] The butterfly separator is connected to a demulsifier adding system for adding demulsifier, an oil storage tank for oil storage, and an MVR evaporator for evaporation separation;

[0017] The heat exchanger is connected with the butterfly separator, MVR evaporator and evaporation system;

[0018] The MVR evaporator is connected with a scraped surface evaporator.

[0019] Furthermore, the material pretreatment system has a pretreatment time of 38-42 minutes and a stirring rate of 350-420 r / min.

[0020] Furthermore, the temperature of the heating tank is controlled at 88-92°C.

[0021] Furthermore, the hydrogen peroxide addition system stores hydrogen peroxide at a concentration of 10%.

[0022] Furthermore, the ratio of solid to condensed water in the solid temporary storage system is 3-3.3:1, and the stirring rate is 450-550r / min.

[0023] Furthermore, the filter press sorting system includes a housing;

[0024] The box is connected with an extrusion filter assembly for pressure filtration and a cleaning assembly for clearing blockage of the extrusion filter assembly;

[0025] A follow-up liquid guide component is connected below the extrusion filter component and moves with the extrusion filter component for draining liquid. When the extrusion filter component is in a filter pressing state, the follow-up liquid guide component is fully unfolded to completely cover the bottom of the extrusion filter component.

[0026] The box body is connected with a slag discharge assembly for guiding solid waste. When the follow-up liquid guide assembly is fully expanded to completely cover the bottom of the extrusion filter assembly, the follow-up liquid guide assembly seals the upper end of the slag discharge assembly located in the box body.

[0027] Furthermore, the extrusion filtering assembly includes filter holes, a feed cylinder, a transverse cylinder, a first hydraulic press, a side baffle, a second hydraulic press, a guide rod and a fixed ring. The first and second hydraulic presses are fixedly connected to the upper right end of the box body, and the first hydraulic press is symmetrically arranged on the outside of the second hydraulic press. The second hydraulic press driving end is fixedly connected to a pressure plate, the first hydraulic press driving end is fixedly connected to the right end of the transverse cylinder, the middle end of the transverse cylinder is fixedly connected to a fixing ring, the feed cylinder for adding materials is fixedly connected to the feed port at the top of the right side of the fixing ring, and the transverse cylinder is provided with filter holes for liquid discharge at equal intervals along the circumferential direction at the top of the left end of the fixing ring, the left end of the box body is connected, and the guide rods are symmetrically fixedly connected to the left side wall of the side baffle and the right inner wall of the box body, and the fixing ring is fitted and slidably connected to the guide rod, the pressure plate is fitted and slidably connected to the inner wall of the transverse cylinder, the bottom of the left end of the transverse cylinder is connected to the left end of the follow-up liquid guide assembly, and the outer wall of the transverse cylinder is fitted and slidably connected to the inner wall of the cleaning assembly.

[0028] Furthermore, the cleaning assembly includes a water inlet pipe, an annular pipe and a first support plate, the first support plate is symmetrically fixedly connected to the top of the box body, the annular pipe is fixedly connected between the first support plates, the water inlet pipe is fixedly connected to the top of the annular pipe, the annular pipe is located on the left side of the fixing ring, and the inner wall of the annular pipe is fitted and slidably connected to the outer wall of the horizontal cylinder;

[0029] The water inlet pipe is connected to the water source through a water pump.

[0030] Furthermore, the follow-up liquid guiding assembly includes a liquid outlet pipe, a connecting seat, a first inclined U-shaped material guiding groove and a second inclined U-shaped material guiding groove. The liquid outlet pipe is fixedly installed at the lower end of the right side wall of the box body, the right inner wall of the liquid outlet pipe is fixedly connected with the second inclined U-shaped material guiding groove, the inner wall of the second inclined U-shaped material guiding groove is slidingly connected with the outer wall of the first inclined U-shaped material guiding groove, the left end of the first inclined U-shaped material guiding groove is fixedly connected with the connecting seat, and the connecting seat is fixedly installed and fixedly connected to the lower side of the left end of the horizontal cylinder.

[0031] Furthermore, the slag discharge assembly includes a transverse hole and a third inclined U-shaped material guide trough. The bottom of the side baffle is provided with a transverse hole, and the inner wall of the transverse hole is fixedly connected to the third inclined U-shaped material guide trough.

[0032] The present invention has the following technical effects:

[0033] The hydrogen peroxide adding system of the present invention adds hydrogen peroxide to the filtrate in the material pretreatment system to precipitate lignin, hemicellulose and cellulose of fiber substances in the filtrate, and breaks the molecular chains of starch substances, which is helpful for heating tank water treatment;

[0034] The pre-treated filtrate enters the heating tank and the heat exchanger, and the steam generator generates high-temperature steam through tap water or cold condensed water. After the steam enters the heating tank, the steam becomes high-temperature condensed water after use. The hot water generated by the butterfly separator enters the heat exchanger to heat the pre-treated filtrate in the heat exchanger. The heated pre-treated filtrate enters the heating tank, and the pre-treated filtrate in the heating tank is reheated, which is beneficial to the secondary utilization of the heat of the butterfly separator. At the same time, the amount of steam generated by the steam generator is reduced. In addition, the heating tank quickly disconnects the bond chains between lignin, hemicellulose and cellulose in the filtrate, so as to sterilize and hydrolyze the pre-treated filtrate in the heating tank, which helps to improve the rapid fermentation of the solid fermentation system, shorten the fermentation time, and is beneficial to the elimination of kitchen waste odor;

[0035] The cooling water in the exchanger can be used as the refrigerant of the steam system, eliminating the need to use other refrigerants.

[0036] After the condensed water from the heating tank passes through the evaporation system, part of it enters the fixed temporary storage system for use as pure water to prevent water impurities from affecting subsequent fermentation treatment. At the same time, the other part of the water enters the steam generator for secondary use, which is conducive to resource recycling. The wastewater uses the MVR evaporator, and the condensed water produced has the characteristics of high COD and low salt, which can be directly sold as a carbon source. The concentrated liquid produced by the MVR evaporator enters the scraper evaporator for crystallization to form a by-product.

[0037] In summary, this system achieves maximum resource utilization without further product processing. At the same time, the water resources and heat sources in the system are recycled, saving water resources and energy consumption.

[0038] The present invention adjusts the extrusion filter assembly to a feeding state, the extrusion filter assembly drives the follower liquid guiding assembly to fully expand, and the follower liquid guiding assembly completely covers the bottom of the extrusion filter assembly. When the bottom of the extrusion filter assembly is completely covered, the follower liquid guiding assembly seals the upper end of the end of the slag discharge assembly located in the box body, so as to prevent the filtrate from being discharged from the slag discharge assembly, add the crushed garbage into the extrusion filter assembly, the extrusion filter assembly performs pressure filtration, and the filtrate is directly discharged through the follower liquid guiding assembly. After the pressure filtration is completed, the extrusion filter assembly opens the material for discharge, and during the discharge, the extrusion filter assembly drives the follower liquid guiding assembly to recover and open the top of the slag discharge assembly. At the same time, the fixed waste of the extrusion filter assembly enters the slag discharge assembly for discharge, so as to prevent the fixed waste from entering the follower liquid guiding assembly; the extrusion filter assembly adjusts the feeding state again, and during this process, the cleaning assembly performs a blockage clearing treatment on the extrusion filter assembly, which is beneficial for the extrusion filter assembly to perform pressure filtration, realizes rapid pressure filtration, facilitates the separate derivation of solid and liquid, and facilitates blockage clearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 This is a process flow chart of a kitchen waste resource utilization system of the present invention;

[0041] Figure 2 The filter press separation system of the present invention is a three-dimensional Figure 1 ;

[0042] Figure 3 It is a front view of the filter press sorting system of the present invention;

[0043] Figure 4 It is a left view of the filter press sorting system of the present invention;

[0044] Figure 5 The filter press separation system of the present invention is a three-dimensional Figure 2 ;

[0045] Figure 6 For along Figure 3 AA direction cross-sectional view;

[0046] Figure 7 For along Figure 3 Cross-sectional view of the BB direction Figure 1 ;

[0047] Figure 8 For along Figure 3Cross-sectional view of the BB direction Figure 2 .

[0048] The numbers in the figure represent:

[0049] 1. Box body 2. Cleaning assembly 21. Water inlet pipe 22. Ring pipe 23. First support plate 3. Extrusion filter assembly 31. Filter hole 32. Feed cylinder 33. Horizontal cylinder 34. First hydraulic press 35. Side baffle 36. Second hydraulic press 37. Guide rod 38. Fixed ring 39. Press plate 4. Follow-up liquid guide assembly 41. Liquid outlet pipe 42. Connecting seat 43. First oblique U-shaped guide trough 44. Second oblique U-shaped guide trough 5. Slag discharge assembly 51. Horizontal hole 52. Third oblique U-shaped guide trough. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 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 are within the scope of protection of the present invention.

[0051] The present invention will be further described below in conjunction with the embodiments.

[0052] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view. Example

[0053] Please refer to the instruction manual Figure 1 , a kitchen waste resource utilization system, including a crushing system for crushing kitchen waste:

[0054] The crushing system is connected to a filter press sorting system for solid-liquid separation and solid residue composting;

[0055] The filter press sorting system is connected to a material pretreatment system for changing material properties, the material pretreatment system is connected to a hydrogen peroxide adding system for adding hydrogen peroxide, a heating tank for hydrothermal pretreatment and a heat exchanger for preheating the filtrate, and the heat exchanger is connected to the heating tank;

[0056] The heating tank is connected to a steam generator for adding water vapor and a three-phase separator for three-phase separation;

[0057] The oil separated by the three-phase separator is sold directly, the solid enters the solid temporary storage system for solid temporary storage, and the wastewater enters the butterfly separator for demulsification and filtration;

[0058] The solid temporary storage system is connected to the butterfly separator, and the solid temporary storage system is connected to a solid fermentation system for solid fermentation. The solid temporary storage system is used to store solids and prepare slurry from the solids;

[0059] The solid fermentation system is connected to an enzyme adding system and an evaporation system for adding enzymes;

[0060] The evaporation system is connected with the heating tank, the solid temporary storage system and the steam generator. The water vapor passes through the heating tank to form hot condensed water which enters the evaporation system as the evaporation heat source. The condensed water passing through the evaporation system enters the solid temporary storage system for water replenishment and enters the steam generator for secondary utilization.

[0061] The butterfly separator is connected to a demulsifier adding system for adding demulsifier, an oil storage tank for oil storage, and an MVR evaporator for evaporation separation;

[0062] The heat exchanger is connected with the butterfly separator, MVR evaporator and evaporation system;

[0063] The MVR evaporator is connected to a scraper evaporator;

[0064] The hydrogen peroxide addition system adds hydrogen peroxide to the filtrate in the material pretreatment system to precipitate lignin, hemicellulose and cellulose in the filtrate, and break the molecular chain of starch substances to produce pretreated filtrate. The pretreated filtrate enters the heating tank and the heat exchanger. The steam generator generates high-temperature steam through tap water or cold condensed water. After the steam enters the heating tank, it becomes high-temperature condensed water after use. The hot water generated by the butterfly separator enters the heat exchanger to heat the pretreated filtrate in the heat exchanger. The heated pretreated filtrate enters the heating tank and reheats the pretreated filtrate in the heating tank, which is beneficial to the secondary utilization of the heat of the butterfly separator. At the same time, the amount of steam generated by the steam generator is reduced, so that the pretreated filtrate in the heating tank can be sterilized and water-treated. Solution, which helps to improve the solid fermentation system for rapid fermentation, shorten the fermentation time, and is conducive to the elimination of kitchen waste odor. The filtrate heated by the heating tank is separated by a three-phase separator, and the oil is used to produce biodiesel. The solid enters the fixed temporary storage system, and the wastewater enters the butterfly separator. The demulsifier adding system adds demulsifier to the butterfly separator for demulsification treatment. The butterfly separator continues to separate and treat. A part of the separated hot water enters the heat exchanger as a heat source, and the oil is stored in the oil storage tank. The other part of the separated hot water enters the MVR evaporator, and the MVR evaporator performs evaporation treatment. The water generated by cooling is sold as a carbon source or subjected to AOAO+MBR treatment. The concentrated liquid generated by the MVR evaporator enters the scraper evaporator for continued evaporation. The scraper evaporator evaporates and crystallizes to prepare by-products.

[0065] After the slurry is prepared in the fixed temporary storage system, it enters the solid fermentation system. The enzyme adding system adds enzymes to the solid fermentation system. The slurry in the solid fermentation system undergoes ethanol fermentation. The fermented material enters the evaporation system. The hot condensed water in the heating tank enters the evaporation system as an evaporation heat source. Part of the condensed water generated after the evaporation system is used enters the solid temporary storage system for water replenishment, and the other part enters the steam generator for secondary use. The hot water in the heat exchanger becomes cooling water after use. Part of the cooling water enters the evaporation system to condense ethanol vapor. The cooling water used by the evaporation system and another part of the cooling water from the heat exchanger enter the MVR for further processing.

[0066] The hydrogen peroxide addition system adds hydrogen peroxide to the filtrate in the material pretreatment system to precipitate lignin, hemicellulose and cellulose of fiber substances, break the molecular chain of starch substances, etc., which is helpful for heating tank water treatment;

[0067] The pre-treated filtrate enters the heating tank and the heat exchanger, and the steam generator generates high-temperature steam through tap water or cold condensed water. After the steam enters the heating tank, the steam becomes high-temperature condensed water after use. The hot water generated by the butterfly separator enters the heat exchanger to heat the pre-treated filtrate in the heat exchanger. The heated pre-treated filtrate enters the heating tank, and the pre-treated filtrate in the heating tank is reheated, which is beneficial to the secondary utilization of the heat of the butterfly separator. At the same time, the amount of steam generated by the steam generator is reduced. In addition, the heating tank quickly disconnects the bond chains between lignin, hemicellulose and cellulose in the filtrate, so as to sterilize and hydrolyze the pre-treated filtrate in the heating tank, which helps to improve the rapid fermentation of the solid fermentation system, shorten the fermentation time, and is beneficial to the elimination of kitchen waste odor;

[0068] The cooling water in the exchanger can be used as the refrigerant of the steam system, eliminating the need to use other refrigerants.

[0069] After the condensed water from the heating tank passes through the evaporation system, part of it enters the fixed temporary storage system for use as pure water to prevent water impurities from affecting subsequent fermentation treatment. At the same time, the other part of the water enters the steam generator for secondary use, which is conducive to resource recycling. The wastewater uses the MVR evaporator, and the condensed water produced has the characteristics of high COD and low salt, which can be directly sold as a carbon source. The concentrated liquid produced by the MVR evaporator enters the scraper evaporator for crystallization to form a by-product.

[0070] In summary, this system achieves maximum resource utilization without further product processing. At the same time, the water resources and heat sources in the system are recycled, saving water resources and energy consumption.

[0071] The water produced by the MVR evaporator is sold through carbon sources or discharged in compliance with AOAO+MBR standards;

[0072] The carbon source for sale is COD30000mg / L, ammonia nitrogen 0.5mg / L, total nitrogen 30 mg / L, and total salt 200 mg / L;

[0073] Scraper evaporator crystallizes salts to produce by-products;

[0074] The material pretreatment system has a pretreatment time of 38-42 minutes and a stirring rate of 350-420 r / min;

[0075] The temperature of the heating tank is controlled at 88-92℃

[0076] The hydrogen peroxide addition system stores 10% hydrogen peroxide;

[0077] The ratio of solid to condensed water in the solid temporary storage system is 3-3.3:1, and the stirring rate is 450-550r / min.

[0078] A solar energy system is installed at the processing station where the kitchen waste resource utilization system of the present application is installed to supplement electric energy. Example

[0079] like Figure 2-8 As shown, the filter press sorting system includes a box 1;

[0080] The box body 1 is connected with an extrusion filter assembly 3 for pressure filtration and a cleaning assembly 2 for clearing blockage of the extrusion filter assembly 3;

[0081] A follow-up liquid guide component 4 is connected below the extrusion filter component 3 and moves with the extrusion filter component 3 for draining liquid. When the extrusion filter component 3 is in the filter pressing state, the follow-up liquid guide component 4 is fully unfolded to completely cover the bottom of the extrusion filter component 3.

[0082] The box body 1 is connected to a slag discharge assembly 5 for conducting solid waste. When the follower liquid guide assembly 4 is fully unfolded to completely cover the bottom of the extrusion filter assembly 3, the follower liquid guide assembly 4 seals the upper end of the slag discharge assembly 5 located in the box body 1.

[0083] The extrusion filter assembly 3 is adjusted to the feeding state, the extrusion filter assembly 3 drives the follower liquid guiding assembly 4 to be fully expanded, and the follower liquid guiding assembly 4 completely covers the bottom of the extrusion filter assembly 3. When the bottom of the extrusion filter assembly 3 is completely covered, the follower liquid guiding assembly 4 seals the upper end of the end of the slag discharge assembly 5 located in the box body 1, which can prevent the filtrate from being discharged from the slag discharge assembly 5, add the crushed garbage into the extrusion filter assembly 3, the extrusion filter assembly 3 is subjected to pressure filtration treatment, and the filtrate is directly discharged through the follower liquid guiding assembly 4. After the pressure filtration is completed, the extrusion filter assembly 3 opens the material for discharge. During the discharge, the extrusion filter assembly 3 drives the follower liquid guiding assembly 4 to recycle and open the top of the slag discharge assembly 5. At the same time, the fixed waste of the extrusion filter assembly 3 enters the slag discharge assembly 5 for discharge, which can prevent the fixed waste from entering the follower liquid guiding assembly 4; the extrusion filter assembly 3 is adjusted to the feeding state again. During this process, the cleaning assembly 2 clears the blockage of the extrusion filter assembly 3, which is beneficial to the extrusion filter assembly 3 for pressure filtration, realizes rapid pressure filtration, facilitates the separate derivation of solid and liquid, and facilitates clearing of blockage.

[0084] The extrusion filter assembly 3 includes a filter hole 31, a feed cylinder 32, a transverse cylinder 33, a first hydraulic press 34, a side baffle 35, a second hydraulic press 36, a guide rod 37 and a fixing ring 38. The first hydraulic press 34 and the second hydraulic press 36 are fixedly connected to the upper right end of the box body 1, and the first hydraulic press 34 is symmetrically arranged on the outside of the second hydraulic press 36. The driving end of the second hydraulic press 36 is fixedly connected to a pressing plate 39. The driving end of the first hydraulic press 34 is fixedly connected to the right end of the transverse cylinder 33. The middle end of the transverse cylinder 33 is fixedly connected to the fixing ring 38. The transverse cylinder 33 is on the right side of the fixing ring 38. A feed cylinder 32 for adding materials is fixedly connected to the feed port at the top of the cross cylinder 33, and filter holes 31 for discharging liquid are opened at equal intervals along the circumferential direction at the top of the left end of the fixed ring 38. A side baffle 35 is connected to the left end of the box body 1, and a guide rod 37 is symmetrically fixedly connected to the left wall of the side baffle 35 and the right inner wall of the box body 1, and the fixed ring 38 is fitted and slidably connected to the guide rod 37, and the pressure plate 39 is fitted and slidably connected to the inner wall of the cross cylinder 33, and the bottom of the left end of the cross cylinder 33 is connected to the left end of the follower liquid guide component 4, and the outer wall of the cross cylinder 33 is fitted and slidably connected to the inner wall of the cleaning component 2;

[0085] The first hydraulic press 34 pushes the horizontal cylinder 33 to move to the left until it is in contact with the side baffle 35. The second hydraulic press 36 drives the pressure plate 39 to move to the right to the right end of the horizontal cylinder 33. The extrusion and filtration component 3 is adjusted to the feeding state, and then the crushed garbage is added to the horizontal cylinder 33 through the feeding cylinder 32. The second hydraulic press 36 pushes the pressure plate 39 to move to the left. The pressure plate 39, the horizontal cylinder 33 and the side baffle 35 cooperate to extrude the crushed garbage. The filtrate is discharged through the follower liquid guide component 4. After the extrusion is completed, the first hydraulic press 34 drives the horizontal cylinder 33 Move to the right. When the horizontal cylinder 33 moves to the right, the left end of the follower liquid guide component 4 moves with the horizontal cylinder 33, gradually opening the top of the slag discharge component 5. When the pressure plate 39 remains in position, the fixed waste is gradually exposed to the outside of the horizontal cylinder 33. The solid waste automatically falls into the slag discharge component 5 by its own gravity and is discharged. Then the first hydraulic press 34 pushes the horizontal cylinder 33 to move to the left until it is in contact with the side baffle 35. The second hydraulic press 36 drives the pressure plate 39 to move to the right end of the horizontal cylinder 33, and adjusts the extrusion filter component 3 to the feeding state, which is convenient for rapid pressure filtration.

[0086] The cleaning assembly 2 includes a water inlet pipe 21, an annular pipe 22 and a first support plate 23. The first support plate 23 is symmetrically fixedly connected to the top of the box body 1. The annular pipe 22 is fixedly connected between the first support plates 23. The top of the annular pipe 22 is fixedly connected to the water inlet pipe 21. The annular pipe 22 is located on the left side of the fixing ring 38, and the inner wall of the annular pipe 22 is slidably connected to the outer wall of the horizontal cylinder 33.

[0087] The water inlet pipe 21 is connected to the water source through a water pump;

[0088] When the first hydraulic press 34 pushes the horizontal cylinder 33 to move to the left, water is added into the water inlet pipe 21 through the water pump, and then enters the annular pipe 22. The water enters the horizontal cylinder 33 through the filter hole 31, clearing the filter hole 31 and ensuring the filtering performance of the filter hole 31.

[0089] The follow-up liquid guide assembly 4 includes a liquid outlet pipe 41, a connecting seat 42, a first oblique U-shaped material guide groove 43 and a second oblique U-shaped material guide groove 44. The liquid outlet pipe 41 is fixedly installed at the lower end of the right side wall of the box body 1, and the right inner wall of the liquid outlet pipe 41 is fixedly connected with the second oblique U-shaped material guide groove 44. The inner wall of the second oblique U-shaped material guide groove 44 is slidably connected with the outer wall of the first oblique U-shaped material guide groove 43. The left end of the first oblique U-shaped material guide groove 43 is fixedly connected with the connecting seat 42, and the connecting seat 42 is fixedly installed and fixedly connected to the lower side of the left end of the horizontal cylinder 33;

[0090] When the horizontal cylinder 33 moves to the left, the horizontal cylinder 33 drives the connecting seat 42 of the follower liquid guiding assembly 4 to move to the left, and the connecting seat 42 drives the first oblique U-shaped guide groove 43 to move to the left. The first oblique U-shaped guide groove 43 blocks the top of the slag discharge assembly 5, and the pressing plate 39 performs pressure filtration. The filtrate passes through the filter hole 31 and falls into the first oblique U-shaped guide groove 43, and then enters the second oblique U-shaped guide groove 44, and is discharged from the liquid outlet pipe 41, which is convenient for collecting and discharging the filtrate. At the same time, the first oblique U-shaped guide groove 43 can prevent the filtrate from falling into the slag discharge assembly 5.

[0091] When the horizontal cylinder 33 moves to the right to discharge solid waste, the horizontal cylinder 33 drives the connecting seat 42 to move to the right, and the connecting seat 42 moves to the top of the second inclined U-shaped guide groove 44. The connecting seat 42 opens the top of the slag discharge assembly 5, and the solid waste falls into the slag discharge assembly 5, preventing the solid waste from entering the follower liquid guide assembly 4;

[0092] The slag discharge assembly 5 includes a transverse hole 51 and a third oblique U-shaped material guide trough 52. The bottom of the side baffle 35 is provided with the transverse hole 51, and the inner wall of the transverse hole 51 is fixedly connected with the third oblique U-shaped material guide trough 52.

[0093] When the extrusion filter assembly 3 moves to the left, the horizontal cylinder 33 drives the connecting seat 42 of the follower liquid guide assembly 4 to move to the left, and the connecting seat 42 drives the first oblique U-shaped guide groove 43 to move to the left. The first oblique U-shaped guide groove 43 blocks the top of the third oblique U-shaped guide groove 52 at the inner wall of the box body 1, thereby preventing the filtrate from falling into the slag discharge assembly 5;

[0094] When the extrusion filter assembly 3 moves to the right, the connection seat 42 opens the top of the slag discharge assembly 5 at the inner wall of the box body 1, and the solid waste falls into the horizontal hole 51. The solid waste is directly discharged from the horizontal hole 51, which is convenient for direct discharge of solid waste.

[0095] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A kitchen waste resource utilization system, comprising a crushing system for crushing kitchen waste, characterized in that: The crushing system is connected to a filter press sorting system for solid-liquid separation; The filter press sorting system is connected to a material pretreatment system for changing material properties, the material pretreatment system is connected to a hydrogen peroxide adding system for adding hydrogen peroxide, a heating tank for hydrothermal pretreatment and a heat exchanger for preheating the filtrate, and the heat exchanger is connected to the heating tank; The heating tank is connected to a steam generator for adding water vapor and a three-phase separator for three-phase separation; The oil separated by the three-phase separator is sold directly, the solid enters the solid temporary storage system for solid temporary storage, and the wastewater enters the butterfly separator for demulsification and filtration; The solid temporary storage system is connected to the butterfly separator, and the solid temporary storage system is connected to a solid fermentation system for solid fermentation; The solid fermentation system is connected to an enzyme adding system and an evaporation system for adding enzymes; The evaporation system is connected with the heating tank, the solid temporary storage system and the steam generator; The butterfly separator is connected to a demulsifier adding system for adding demulsifier, an oil storage tank for oil storage, and an MVR evaporator for evaporation separation; The heat exchanger is connected with the butterfly separator, MVR evaporator and evaporation system; The MVR evaporator is connected to a scraper evaporator; The material pretreatment system has a pretreatment time of 38-42 minutes and a stirring rate of 350-420 r / min; The temperature of the heating tank is controlled at 88-92℃; The hydrogen peroxide addition system stores 10% hydrogen peroxide; The ratio of solid to condensed water in the solid temporary storage system is 3-3.3:1, and the stirring rate is 450-550r / min; The filter press sorting system comprises a box (1); The box body (1) is connected to an extrusion filter assembly (3) for pressure filtration and a cleaning assembly (2) for clearing blockage of the extrusion filter assembly (3); A follower-type liquid guide component (4) is connected below the extrusion filter component (3) and moves with the extrusion filter component (3) and is used for draining liquid. When the extrusion filter component (3) is in a filter pressing state, the follower-type liquid guide component (4) is fully unfolded to completely cover the bottom of the extrusion filter component (3); The box body (1) is connected to a slag discharge assembly (5) for conducting solid waste, and when the follower liquid guide assembly (4) is fully extended to completely cover the bottom of the extrusion filter assembly (3), the follower liquid guide assembly (4) seals the upper end of the slag discharge assembly (5) located in the box body (1); The extrusion filter assembly (3) comprises a filter hole (31), a feed cylinder (32), a transverse cylinder (33), a first hydraulic press (34), a side baffle (35), a second hydraulic press (36), a guide rod (37) and a fixing ring (38). The upper right end of the housing (1) is fixedly connected to the first hydraulic press (34) and the second hydraulic press (36), and the first hydraulic press (34) is symmetrically arranged outside the second hydraulic press (36). The driving end of the second hydraulic press (36) is fixedly connected to a pressing plate (39). The driving end of the first hydraulic press (34) is fixedly connected to the right end of the transverse cylinder (33). The middle end of the transverse cylinder (33) is fixedly connected to the fixing ring (38). The transverse cylinder (33) is fixedly connected to the fixing ring (38). A feed cylinder (32) for feeding is fixedly connected to a feed port at the top of the right side of the fixing ring (38), a filter hole (31) for discharging liquid is opened at equal intervals along the circumferential direction at the top of the left end of the fixing ring (38), a side baffle (35) is connected to the left end of the box body (1), a guide rod (37) is symmetrically fixedly connected to the left side wall of the side baffle (35) and the right inner wall of the box body (1), and the fixing ring (38) is slidably connected to the guide rod (37), the pressure plate (39) is slidably connected to the inner wall of the horizontal cylinder (33), the bottom of the left end of the horizontal cylinder (33) is connected to the left end of the follower liquid guide component (4), and the outer wall of the horizontal cylinder (33) is slidably connected to the inner wall of the cleaning component (2); The cleaning assembly (2) comprises a water inlet pipe (21), an annular pipe (22) and a first support plate (23); the first support plate (23) is symmetrically fixedly connected to the top of the box body (1); the annular pipe (22) is fixedly connected between the first support plates (23); the top of the annular pipe (22) is fixedly connected to the water inlet pipe (21); the annular pipe (22) is located on the left side of the fixing ring (38); and the inner wall of the annular pipe (22) is slidably connected to the outer wall of the horizontal cylinder (33); The water inlet pipe (21) is connected to a water source via a water pump; The follow-up liquid guide assembly (4) comprises a liquid outlet pipe (41), a connecting seat (42), a first oblique U-shaped material guide groove (43) and a second oblique U-shaped material guide groove (44), wherein the liquid outlet pipe (41) is fixedly mounted on the lower end of the right side wall of the box body (1), the right inner wall of the liquid outlet pipe (41) is fixedly connected to the second oblique U-shaped material guide groove (44), the inner wall of the second oblique U-shaped material guide groove (44) is slidably connected to the outer wall of the first oblique U-shaped material guide groove (43), the left end of the first oblique U-shaped material guide groove (43) is fixedly connected to the connecting seat (42), and the connecting seat (42) is fixedly mounted on the lower side of the left end of the horizontal cylinder (33) and fixedly connected; The slag discharge assembly (5) comprises a transverse hole (51) and a third oblique U-shaped material guide trough (52). The bottom of the side baffle (35) is provided with the transverse hole (51), and the inner wall of the transverse hole (51) is fixedly connected to the third oblique U-shaped material guide trough (52).

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