Multi-type garbage collaborative incineration power generation system

Abstract

The utility model provides a multi-type garbage collaborative incineration power generation system which is characterized in that firstly, kitchen garbage is pretreated through a pretreatment module, and then the kitchen garbage and garbage leachate are subjected to percolation treatment through a percolation module; then the kitchen garbage, the garbage leachate and the municipal sludge are dried through the sludge drying module, and finally the kitchen garbage, the household garbage, the garbage leachate and the municipal sludge are subjected to collaborative incineration power generation treatment through the incineration power generation module. Therefore, cooperative recycling of the kitchen garbage, the household garbage, the garbage leachate and the municipal sludge is realized, and the treatment cost of the municipal wastes is reduced while the recycling efficiency of the municipal wastes is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid waste treatment technical field especially, relates to a kind of multiple kinds of garbage synergic incineration power generation system. BACKGROUND

[0002] Current urban waste includes kitchen garbage, landfill leachate, municipal sludge and household garbage etc., the processing system in prior art usually separates the above-mentioned urban waste and processes, thus reducing the recycling efficiency of urban waste, and increasing the processing cost of urban waste. Therefore, a multiple kinds of garbage synergic incineration power generation system is needed to synchronously process urban waste, ultimately achieving the purpose of guaranteed waste treatment, recyclable renewable resources, and integrated vein and artery industries. SUMMARY

[0003] Therefore, the present application provides a multiple kinds of garbage synergic incineration power generation system to solve the technical problem of low recycling efficiency of urban waste in existing garbage treatment system.

[0004] The utility model aims to realize by following technical scheme:

[0005] To achieve the above technical purpose, the present application adopts the following technical scheme:

[0006] The utility model provides a multiple kinds of garbage synergic incineration power generation system, including pretreatment module, percolation module, sludge drying module and incineration power generation module, percolation module is connected with pretreatment module, sludge drying module is connected with percolation module, and incineration power generation module is connected with pretreatment module, percolation module and sludge drying module respectively;

[0007] The incineration power generation module is used for synergic incineration power generation treatment of kitchen garbage, household garbage, landfill leachate and municipal sludge.

[0008] Preferably, the pretreatment module includes material receiving unit, crushing unit and garbage separation unit connected in sequence.

[0009] The garbage separation unit is connected with the incineration power generation module and the percolation module respectively.

[0010] Preferably, the material receiving unit is used for receiving kitchen garbage, the crushing unit is used for crushing treatment of kitchen garbage, and the garbage separation unit is used for forming sludge and kitchen sewage after separating treatment of kitchen garbage after crushing treatment, and conveying sludge to the incineration power generation module, and conveying kitchen sewage to the percolation module.

[0011] Preferably, the garbage separation unit includes screening subunit, dewatering subunit, sand removing subunit and solid-liquid separation subunit connected in sequence.

[0012] The screening subunit is used for screening the kitchen waste after the crushing treatment to form a first waste slurry and sundries; the dewatering subunit is used for dewatering the first waste slurry to form a second waste slurry and a first solid residue; the sand removing subunit is used for removing sand from the second waste slurry to form a third waste slurry and sand; and the solid-liquid separation subunit is used for separating the third waste slurry to form kitchen sewage and a second solid residue.

[0013] Preferably, the screening subunit is a butterfly-shaped screen, and the biogas residue includes the sundries, the first solid residue, the sand, and the second solid residue.

[0014] Preferably, the leachate treatment station, the UASB unit, the A / O unit, the ultrafiltration unit, the nanofiltration unit, and the reverse osmosis unit are connected in sequence.

[0015] The leachate treatment station is connected with the solid-liquid separation subunit, the UASB unit is connected with the incineration power generation module and the sludge drying module respectively, the A / O unit and the ultrafiltration unit are connected with the sludge drying module, and the nanofiltration unit and the reverse osmosis unit are connected with the incineration power generation module.

[0016] Preferably, the leachate treatment station is used for leaching the kitchen sewage and the waste leachate respectively to obtain a first leachate; the UASB unit is used for anaerobically treating the first leachate to obtain a second leachate, biogas, and anaerobic sludge; the A / O unit is used for denitrifying the second leachate to obtain a third leachate and biochemical sludge; the ultrafiltration unit is used for ultrafiltrating the third leachate to obtain ultrafiltration water and ultrafiltration sludge; the nanofiltration unit is used for nanofiltrating the ultrafiltration water to obtain nanofiltration water and a first concentrated liquid; and the reverse osmosis unit is used for reverse osmosis treating the nanofiltration water to obtain a second concentrated liquid.

[0017] Preferably, the sludge drying module includes a sludge receiving unit and a drying unit connected in sequence.

[0018] The sludge receiving unit is connected with the UASB unit, the A / O unit, and the ultrafiltration unit respectively, and the drying unit is connected with the A / O unit, the ultrafiltration unit, and the incineration power generation module respectively.

[0019] Preferably, the sludge receiving unit is used for mixing municipal sludge, anaerobic sludge, biochemical sludge, and ultrafiltration sludge to obtain mixed sludge, and the mixed sludge is delivered to the drying unit; and the drying unit is used for drying the mixed sludge to obtain dried sludge and dewatering clear liquid, and the dewatering clear liquid is delivered to the A / O unit and the ultrafiltration unit respectively.

[0020] Preferably, the incineration power generation module is used to perform coordinated incineration power generation treatment on the first concentrated liquid, the second concentrated liquid, biogas, biogas residue, dried sludge and domestic waste.

[0021] Beneficial effect: The utility model provides a multi-type garbage collaborative incineration power generation system, which first pre-treats kitchen waste through a pretreatment module, then performs infiltration treatment on kitchen waste and garbage leachate through a infiltration module, and then performs drying treatment on kitchen waste, garbage leachate and municipal sludge respectively through a sludge drying module, and finally performs collaborative incineration and power generation treatment on kitchen waste, domestic waste, garbage leachate and municipal sludge through an incineration power generation module, thereby realizing collaborative recycling of kitchen waste, domestic waste, garbage leachate and municipal sludge, thereby improving the recycling efficiency of urban waste and reducing the treatment cost of urban waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural framework diagram of a multi-type garbage collaborative incineration power generation system provided in an embodiment of the present application;

[0023] Figure 2 This is a process flow chart of a multi-type garbage collaborative incineration power generation system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Aiming at the technical problem that the existing garbage disposal system has too low efficiency in recycling and utilizing urban waste, the utility model can solve the above technical problem.

[0026] See also Figure 1 , Figure 1 This is a structural framework diagram of a multi-type garbage collaborative incineration power generation system provided in an embodiment of the present application; the present invention provides a multi-type garbage collaborative incineration power generation system, including a pretreatment module, a percolation module, a sludge drying module, and an incineration power generation module. The percolation module is connected to the pretreatment module, the sludge drying module is connected to the percolation module, and the incineration power generation module is connected to the pretreatment module, the percolation module, and the sludge drying module, respectively.

[0027] Among them, the incineration power generation module is used for the coordinated incineration and power generation of kitchen waste, domestic waste, leachate and municipal sludge.

[0028] In the embodiment of the utility model, the pretreatment module is used for pretreating the kitchen garbage; because the kitchen garbage has the characteristics of high water content, high organic matter content, high grease and high salt content, therefore, after the kitchen garbage is pretreated before garbage incineration, the kitchen garbage is incinerated with the domestic garbage, the garbage treatment capacity and efficiency can be effectively improved, and the kitchen garbage is fully recycled.

[0029] Please refer to Figure 2 , Figure 2 The process flow chart of the multiple types of garbage synergic incineration power generation system provided by the embodiment of the application; wherein the pretreatment module comprises a material receiving unit, a crushing unit and a garbage separation unit connected in sequence; wherein the garbage separation unit is connected with the incineration power generation module and the leaching module.

[0030] Specifically, the material receiving unit is used for receiving the kitchen garbage, the crushing unit is used for crushing the kitchen garbage (coarse crushing), and the garbage separation unit is used for separating the kitchen garbage after the crushing treatment to form biogas residue and kitchen sewage, and conveying the biogas residue to the incineration power generation module, and conveying the kitchen sewage to the leaching module.

[0031] Specifically, the garbage separation unit comprises a screening subunit, a dewatering subunit, a sand removing subunit and a solid-liquid separation subunit connected in sequence; wherein the screening subunit is used for screening the kitchen garbage after the crushing treatment to form first garbage slurry and sundries; the dewatering subunit is used for extruding and dewatering the first garbage slurry to form second garbage slurry and first solid residue; the sand removing subunit is used for removing sand from the second garbage slurry to form third garbage slurry and sand; and the solid-liquid separation subunit is used for separating the third garbage slurry to form kitchen sewage and second solid residue.

[0032] Preferably, the screening subunit is a butterfly-shaped screen, and the biogas residue comprises the sundries, the first solid residue, the sand and the second solid residue.

[0033] In the embodiment, the leaching module comprises a leachate treatment station, a UASB unit (Upflow Anaerobic Sludge Blanket), an A / O unit, an ultrafiltration unit, a nanofiltration unit and a reverse osmosis unit connected in sequence;

[0034] Wherein, the leachate treatment station is connected with the solid-liquid separation subunit, the UASB unit is connected with the incineration power generation module and the sludge drying module, the A / O unit and the ultrafiltration unit are connected with the sludge drying module, and the nanofiltration unit and the reverse osmosis unit are connected with the incineration power generation module.

[0035] In the embodiment, the leachate treatment station is used to obtain the first leachate by performing leachate treatment on the kitchen wastewater and the landfill leachate respectively; wherein the landfill leachate is derived from the domestic waste.

[0036] In the embodiment, the UASB (Upflow Anaerobic Sludge Blanket) unit is a commonly used high-efficiency anaerobic biological treatment unit, which has a high organic load bearing capacity and can treat high-concentration organic wastewater, and has a good sludge interception capacity. Specifically, the UASB unit is used to obtain the second leachate, biogas and anaerobic sludge by performing anaerobic treatment on the first leachate.

[0037] In the embodiment, the A / O unit is a commonly used wastewater treatment process unit, which is composed of an anoxic tank (A tank) and an aerobic tank (O tank).

[0038] In the anoxic tank, denitrifying bacteria use organic matter in wastewater as a carbon source to reduce nitrate nitrogen in the refluxed mixed liquid to nitrogen gas, thereby achieving the purpose of denitrification. After the anoxic treatment, the wastewater enters the aerobic tank, and under aerobic conditions, aerobic microorganisms use oxygen in the air to further oxidize and decompose organic matter in the wastewater, and at the same time, ammonia nitrogen is converted into nitrate nitrogen. Through the alternating operation of the anoxic tank and the aerobic tank, the nitrification and denitrification processes are realized, which can effectively remove nitrogen elements in the wastewater.

[0039] Specifically, the A / O unit does not need to add additional carbon source, and uses organic matter in wastewater as a carbon source for denitrification, which reduces the operating cost. At the same time, the power consumption of this process is relatively low, and the operating cost is relatively economical. It can effectively remove organic matter, nitrogen, phosphorus and other pollutants in wastewater, and meet the national emission standards.

[0040] In the embodiment, the ultrafiltration unit is used to obtain ultrafiltration product water and ultrafiltration sludge by performing ultrafiltration treatment on the third leachate; the nanofiltration unit is used to obtain nanofiltration product water and the first concentrated liquid by performing nanofiltration treatment on the ultrafiltration product water; and the reverse osmosis unit is used to obtain the second concentrated liquid by performing reverse osmosis treatment on the nanofiltration product water.

[0041] In the embodiment, the sludge drying module includes a sludge receiving unit and a drying unit connected in sequence.

[0042] The sludge receiving unit is connected with the UASB unit, the A / O unit and the ultrafiltration unit respectively, and the drying unit is connected with the A / O unit, the ultrafiltration unit and the incineration power generation module respectively.

[0043] Specifically, the sludge receiving unit is used to transport the mixed sludge obtained by mixing municipal sludge, anaerobic sludge, biochemical sludge and ultrafiltration sludge to the drying unit; the drying unit is used to obtain dried sludge and dewatering clear liquid after drying treatment of the mixed sludge, and the dewatering clear liquid is transported to the A / O unit and the ultrafiltration unit respectively; wherein the drying unit is preferably a disc dryer.

[0044] Preferably, the incineration power generation module is used for synergistic incineration power generation treatment of the first concentrated liquid, the second concentrated liquid, the biogas, the biogas residue, the dried sludge and the household garbage.

[0045] Please continue to refer to Figure 1 The operation process of the garbage synergistic incineration power generation system provided by the embodiment is as follows:

[0046] Firstly, the kitchen garbage is received by the material receiving unit and then subjected to coarse crushing treatment, and then subjected to butterfly screen separation treatment to form first garbage slurry and large sundries with large particles, the first garbage slurry is subjected to extrusion dewatering treatment to form second garbage slurry and first solid residue, the second garbage slurry is subjected to sand removal treatment to form third garbage slurry and sand and gravel, and the third garbage slurry is subjected to solid-liquid separation to form kitchen sewage and second solid residue; wherein the large sundries, the first solid residue, the sand and gravel and the second solid residue are mixed to form biogas residue which is transported to the incinerator in the incineration power generation module for incineration power generation treatment.

[0047] Then, the kitchen garbage and the landfill leachate are subjected to leachate treatment station for leachate treatment to obtain first leachate, and the first leachate is subjected to anaerobic treatment by the UASB unit to obtain second leachate, biogas and anaerobic sludge; wherein the biogas is transported to the incinerator in the incineration power generation module for incineration power generation treatment, and the anaerobic sludge is transported to the sludge drying module for drying treatment.

[0048] Then, the second leachate is subjected to denitrification treatment by the A / O unit to obtain third leachate and biochemical sludge, and the biochemical sludge is transported to the sludge drying module for drying treatment.

[0049] Then, the third leachate is subjected to ultrafiltration treatment by the ultrafiltration unit to obtain ultrafiltration water and ultrafiltration sludge, and the ultrafiltration sludge is transported to the sludge drying module for drying treatment.

[0050] At the same time, the municipal sludge, the anaerobic sludge, the biochemical sludge and the ultrafiltration sludge are mixed to obtain mixed sludge which is transported to the drying unit for drying treatment to obtain dried sludge and dewatering clear liquid, the dried sludge is transported to the incinerator in the incineration power generation module for incineration power generation treatment, and the dewatering clear liquid is transported to the A / O unit and the ultrafiltration unit respectively to achieve the purpose of saving water resources.

[0051] After that, the ultrafiltration water is subjected to nanofiltration treatment by the nanofiltration unit to obtain nanofiltration water and a first concentrated liquid, and the first concentrated liquid is transported into the incinerator in the incineration power generation module for incineration power generation treatment.

[0052] Finally, the nanofiltration water is subjected to reverse osmosis treatment by the reverse osmosis unit to obtain a second concentrated liquid, and the second concentrated liquid is transported into the incinerator in the incineration power generation module for incineration power generation treatment, and the domestic waste is transported into the incinerator in the incineration power generation module for incineration power generation treatment.

[0053] The utility model discloses a kitchen garbage pretreatment, municipal sludge resource and percolate treatment etc. multiple technology synergic coupling domestic waste incineration power generation, full amount consumption solid waste, waste water, waste gas, form circular economy, efficient recycling energy, and it can improve garbage incineration efficiency, effectively consumption solid waste, waste water, waste gas, realize " waste " full comprehensive utilization.

[0054] In summary, the utility model has the following advantages compared with prior art:

[0055] 1, the multiple garbage synergic incineration power generation system of the utility model cooperates domestic waste incineration after the kitchen garbage with high water content, high organic matter content, high grease pretreatment, greatly improves the incineration efficiency, and full amount consumption kitchen garbage, improves the urban living environment and ecological environment.

[0056] 2, the multiple garbage synergic incineration power generation system of the utility model sends the municipal sludge with low calorific value and high water content into the incinerator after drying, and long-term, effectively solves the outlet problem of municipal sludge.

[0057] 3, the multiple garbage synergic incineration power generation system of the utility model sends garbage leachate and kitchen wastewater to the leachate treatment station, sends the concentrated water generated in treatment to the incinerator for incineration or to the flue gas purification system for pulping, sends the sludge generated after drying by the sludge drying system to the incinerator for incineration, sends the biogas generated to the incinerator for incineration, fully recycles heat energy resources, no pollutant emission, realizes the circular economy of garbage incineration industrial park.

[0058] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of the change or replacement within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multi-waste synergic incineration power generation system, characterized in that, The module includes a pretreatment module, a leachate module, a sludge drying module and a incineration power generation module, the leachate module is connected with the pretreatment module, the sludge drying module is connected with the leachate module, and the incineration power generation module is connected with the pretreatment module, the leachate module and the sludge drying module respectively; The incineration power generation module is used for synergistic incineration power generation treatment of kitchen garbage, household garbage, landfill leachate and municipal sludge.

2. The multi-waste incineration power generation system of claim 1, wherein, The pretreatment module includes a material receiving unit, a crushing unit and a garbage separation unit connected in sequence; The garbage separation unit is connected with the incineration power generation module and the leachate module respectively.

3. The multi-waste incineration power generation system of claim 2, wherein, The material receiving unit is used for receiving the kitchen garbage, the crushing unit is used for crushing the kitchen garbage, and the garbage separation unit is used for separating the kitchen garbage after crushing to form sludge and kitchen sewage, and conveying the sludge to the incineration power generation module, and conveying the kitchen sewage to the leachate module.

4. The multi-waste incineration power generation system of claim 3, wherein The garbage separation unit includes a screening subunit, a dewatering subunit, a sand removal subunit and a solid-liquid separation subunit connected in sequence; The screening subunit is used for screening the kitchen garbage after crushing to form a first garbage slurry and sundries; the dewatering subunit is used for dewatering the first garbage slurry to form a second garbage slurry and a first solid residue; the sand removal subunit is used for removing sand from the second garbage slurry to form a third garbage slurry and sand; and the solid-liquid separation subunit is used for solid-liquid separation of the third garbage slurry to form the kitchen sewage and a second solid residue.

5. The multi-waste incineration power generation system of claim 4, wherein, The screening subunit is a butterfly-shaped screen, and the sludge includes the sundries, the first solid residue, the sand and the second solid residue.

6. The multi-waste incineration power generation system of claim 4, wherein, The leachate module includes a leachate treatment station, a UASB unit, an A / O unit, an ultrafiltration unit, a nanofiltration unit and a reverse osmosis unit connected in sequence; The leachate treatment station is connected with the solid-liquid separation subunit, the UASB unit is connected with the incineration power generation module and the sludge drying module respectively, the A / O unit and the ultrafiltration unit are connected with the sludge drying module, and the nanofiltration unit and the reverse osmosis unit are connected with the incineration power generation module.

7. The multi-waste incineration power generation system of claim 6, wherein, The leachate treatment station is used for leachate treatment of the kitchen sewage and the landfill leachate to obtain a first leachate; the UASB unit is used for anaerobic treatment of the first leachate to obtain a second leachate, biogas and anaerobic sludge; the A / O unit is used for denitrification treatment of the second leachate to obtain a third leachate and biochemical sludge; the ultrafiltration unit is used for ultrafiltration treatment of the third leachate to obtain ultrafiltration water and ultrafiltration sludge; the nanofiltration unit is used for nanofiltration treatment of the ultrafiltration water to obtain nanofiltration water and a first concentrated solution; and the reverse osmosis unit is used for reverse osmosis treatment of the nanofiltration water to obtain a second concentrated solution.

8. The multi-waste incineration power generation system of claim 7, wherein, The sludge drying module includes a sludge receiving unit and a drying unit connected in sequence; The sludge receiving unit is connected with the UASB unit, the A / O unit and the ultrafiltration unit respectively, and the drying unit is connected with the A / O unit, the ultrafiltration unit and the incineration power generation module respectively.

9. The multi-waste incineration power generation system of claim 8, wherein The sludge receiving unit is used for conveying the mixed sludge obtained by mixing the municipal sludge, the anaerobic sludge, the biochemical sludge and the ultrafiltration sludge to the drying unit; the drying unit is used for drying the mixed sludge to obtain dried sludge and dewatering clear liquid, and conveying the dewatering clear liquid to the A / O unit and the ultrafiltration unit respectively.

10. The multi-waste incineration power generation system of claim 9, wherein, The incineration power generation module is used for performing synergistic incineration power generation treatment on the first concentrated liquid, the second concentrated liquid, the biogas, the biogas residue, the dried sludge and the household garbage.

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