CN211871991U - Municipal administration mud and kitchen garbage concurrent processing system - Google Patents
Municipal administration mud and kitchen garbage concurrent processing system Download PDFInfo
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- CN211871991U CN211871991U CN202020189640.2U CN202020189640U CN211871991U CN 211871991 U CN211871991 U CN 211871991U CN 202020189640 U CN202020189640 U CN 202020189640U CN 211871991 U CN211871991 U CN 211871991U
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Abstract
The utility model discloses a municipal administration mud and kitchen garbage concurrent processing system relates to environmental engineering municipal refuse treatment technical field. The co-processing system comprises a crushing device, a stirring device, a sludge stirring tank, a blending tank and an anaerobic membrane reaction device. The crushing device is used for crushing the kitchen waste; the stirring device is connected with the crushing device and is used for stirring the crushed kitchen waste to form dissolving pulp; the sludge stirring tank is used for stirring municipal sludge; the blending tank is communicated with the stirring device and the sludge stirring tank and is used for mixing the municipal sludge conveyed by the sludge stirring tank and the dissolved slurry conveyed by the stirring device; the anaerobic membrane reaction device is connected with the blending tank and is used for carrying out anaerobic fermentation on the mixed municipal sludge and the dissolving pulp. This synergistic processing system is through the mixed fermentation to municipal sludge and kitchen garbage, synergistic effect between the reinforcing microorganism, and stirs municipal sludge and kitchen garbage respectively in advance to improve municipal sludge and kitchen garbage and mix the homogeneity degree, improve fermentation efficiency.
Description
Technical Field
The utility model relates to an environmental engineering municipal refuse treatment technical field, concretely relates to municipal sludge and kitchen garbage concurrent processing system.
Background
With the development of national economy, the living standard of people is improved, the yield of municipal solid waste is increased year by year, and municipal sludge and kitchen waste are main components of the municipal solid waste. Municipal sludge has poor dehydration performance, contains toxic and harmful substances such as refractory organic matters, pathogenic bacteria, heavy metals and the like, and the kitchen waste has complex composition and is easy to decay and deteriorate, smelly and breed parasites and other harmful substances, and if the toxic and harmful substances and the harmful substances are not reasonably treated, the municipal sludge brings great threat to the urban environment. At present, municipal sludge and kitchen waste are treated mainly by landfill, incineration, composting, anaerobic digestion and the like. The anaerobic digestion technology is utilized to ferment the municipal sludge and the kitchen waste to generate methane, so that the energy recovery rate is improved.
However, because the content of easily degradable organic matters in the municipal sludge is low, the biodegradable substances are difficult to dissolve out, the anaerobic fermentation hydrolysis acidification rate is slow, and the efficiency of producing biogas in the anaerobic digestion of the municipal sludge is limited to a greater extent; meanwhile, the kitchen waste is subjected to independent anaerobic digestion, so that a large amount of volatile organic acid is easily accumulated in an acid production stage, the pH value of the system is reduced, the activity of methanogens is inhibited, and the methane production efficiency is reduced. The kitchen waste has the advantages of high biomass energy, easy microbial degradation and the like. Carry out mixed fermentation with municipal administration mud and kitchen garbage, not only can dilute the toxic substance that produces among the municipal administration mud fermentation process, balance the nutrition of both, strengthen the synergism between the microorganism, also can reduce the branch flow of both independent processings, improve municipal solid waste's treatment effeciency.
Therefore, a municipal sludge and kitchen waste co-processing system is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of municipal administration mud and kitchen garbage concurrent processing system through the mixed fermentation to municipal administration mud and kitchen garbage, has strengthened synergism between the microorganism, and stirs municipal administration mud and kitchen garbage respectively in advance to improve municipal administration mud and the mixed homogeneity degree of kitchen garbage, improved fermentation efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a municipal sludge and kitchen garbage concurrent processing system, includes:
the crushing device is used for crushing the kitchen waste;
the stirring device is connected with the crushing device and is used for stirring the crushed kitchen waste to form dissolving pulp;
the sludge stirring tank is used for storing and stirring municipal sludge;
the blending tank is communicated with the stirring device and the sludge stirring tank and is used for mixing the municipal sludge conveyed by the sludge stirring tank and the dissolved slurry conveyed by the stirring device;
and the anaerobic membrane reaction device is connected with the blending tank and is used for carrying out anaerobic fermentation on the mixed municipal sludge and the dissolving pulp.
Optionally, the stirring device is further connected with a water inlet pipeline.
Optionally, the co-processing system further comprises a compression device for compressing and dehydrating the light garbage in the stirring device;
the compression device is connected with the crushing device so as to transfer the compressed light garbage to the crushing device for secondary crushing;
the compression device is connected with the stirring device so as to reflux the water which is dehydrated by compression into the stirring device.
Optionally, municipal sludge and kitchen garbage concurrent processing system still includes collects harrow device, collect harrow device and be used for salvaging in the agitating unit light waste transfer to compressor arrangement.
Optionally, the collection rake apparatus comprises:
the raking gripper is used for scooping the light garbage suspended in the stirring device;
the guide rod, the harrow tongs install in the guide rod, just the harrow tongs can follow guide rod axial displacement and circumferential direction.
Optionally, a multi-layer paddle type stirrer is arranged in the blending tank.
Optionally, a first heat exchanger is arranged on a sludge pipeline between the sludge stirring tank and the blending tank, a first temperature sensing instrument is arranged in the blending tank and connected with the first heat exchanger, and the first heat exchanger is configured to heat municipal sludge in the sludge pipeline when the first temperature sensing instrument detects that the temperature in the blending tank is lower than a first preset temperature.
Optionally, a second heat exchanger is arranged on a blend conveying pipeline between the anaerobic membrane reaction device and the blending tank, a second temperature sensing instrument is arranged in the anaerobic membrane reaction device, the second temperature sensing instrument is connected with the second heat exchanger, and the second heat exchanger is configured to heat the blend in the blend conveying pipeline when the second temperature sensing instrument detects that the temperature in the anaerobic membrane reaction device is lower than a second preset temperature.
Optionally, the anaerobic membrane reaction device comprises:
the reaction tank is connected with the blending tank;
the first gas collecting pipeline is communicated with the reaction tank and is used for outputting the generated methane;
the membrane assembly is arranged in the reaction tank and is connected with a biogas slurry output pipeline;
the aeration disc is arranged in the reaction tank and is positioned below the membrane component;
and one end of the second gas collection pipeline is communicated with the reaction tank, and the other end of the second gas collection pipeline is communicated with the aeration disc, and the second gas collection pipeline is provided with an aeration pump.
Optionally, the anaerobic membrane reaction device further comprises a gas storage tank, the gas storage tank is communicated with one end of the second gas collecting pipeline, and the aeration pump is arranged between the gas storage tank and the aeration disc.
The utility model has the advantages that:
the utility model provides a pair of municipal administration mud and kitchen garbage coprocessing system, stir kitchen garbage through setting up agitating unit, set up mud stirring pond and stir municipal administration mud, and the kitchen garbage after will stirring and municipal administration mud input mix in the pond, carry out anaerobic fermentation with mixture input anaerobic membrane reaction unit, realize the mixed fermentation to municipal administration mud and kitchen garbage, the synergism between the microorganism has been strengthened, and stir municipal administration mud and kitchen garbage respectively in advance, with improvement municipal administration mud and kitchen garbage mixed homogeneity degree, the fermentation efficiency is improved.
Drawings
FIG. 1 is the overall structure schematic diagram of the municipal sludge and kitchen waste co-processing system provided by the embodiment of the utility model.
In the figure:
100. a slurry conduit; 200. a sludge pipeline; 300. a blend delivery conduit;
1. a crushing device; 2. a stirring device; 21. a first mixer; 22. a water inlet pipe; 221. a water inlet valve; 23. a sand discharge pipeline; 231. a sand discharge valve; 3. a sludge stirring tank; 31. a second mixer; 4. a blending tank; 41. a multi-layer blade mixer; 42. a first temperature sensing instrument; 5. an anaerobic membrane reaction device; 51. a reaction tank; 52. a first gas collection line; 521. a gas collection valve; 53. a membrane module; 54. an aeration disc; 55. a second gas collection pipeline; 551. an aeration pump; 56. a gas storage tank; 561. a pressure gauge; 57. a biogas residue output pipeline; 571. a slag discharge pump; 572. a slag discharge valve; 58. a biogas slurry output pipeline; 581. a liquid discharge pump; 6. a compression device; 61. a light garbage discharge passage; 611. a light garbage discharge valve; 62. a water return channel; 7. a collection rake device; 71. raking the tongs; 72. a guide bar; 8. a first heat exchanger; 9. a sludge pump; 10. a second heat exchanger; 101. a lift pump; 102. a second temperature sensing instrument; 103. a slurry pump; 104. and a slurry discharge valve.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a municipal administration mud and kitchen garbage coprocessing system includes reducing mechanism 1, agitating unit 2, mud stirring pond 3, blend pond 4 and anaerobic membrane reaction unit 5. The crushing device 1 is connected with the stirring device 2, the stirring device 2 is connected with the blending tank 4, the sludge stirring tank 3 is connected with the blending tank 4, and the blending tank 4 is connected with the anaerobic membrane reaction device 5. Specifically, reducing mechanism 1 is used for smashing kitchen garbage, and reducing mechanism 1 specifically can be channel formula crushing type grid. The crushed kitchen waste is conveyed to a stirring device 2 to be stirred to form dissolved slurry, and the dissolved slurry is conveyed to a blending pool 4. Simultaneously, mud stirring pond 3 is used for storing and stirs municipal sludge, and municipal sludge after the stirring is carried to in blending pond 4 through mud pipeline 200. The blending tank 4 is used for mixing the municipal sludge conveyed by the sludge stirring tank 3 and the dissolving pulp conveyed by the stirring device 2. The blend in the blending tank 4 is conveyed into an anaerobic membrane reaction device 5 through a blend conveying pipeline 300, and the mixed municipal sludge and dissolved pulp are subjected to anaerobic fermentation in the anaerobic membrane reaction device 5 to generate biogas. This coprocessing system has strengthened synergism between the microorganism through the mixed fermentation to municipal sludge and kitchen garbage, and stirs municipal sludge and kitchen garbage respectively in advance to improve municipal sludge and kitchen garbage mixed homogeneity degree, improved fermentation efficiency.
Specifically, in order to accelerate the dissolution of the crushed kitchen waste, the stirring device 2 is further connected with a water inlet pipe 22 to inject hot water into the stirring device 2. Optionally, a water inlet valve 221 is provided on the water inlet pipe 22 to facilitate control of the hot water injection amount.
Optionally, in order to further accelerate the dissolution of the kitchen waste, a first stirrer 21 is further disposed in the stirring device 2, the first stirrer 21 is disposed on the axial center of the stirring device 2 to stir the chopped kitchen waste, and preferably, the first stirrer 21 is a screw stirrer. When the device is used, the water inlet valve 221 is opened firstly, a proper amount of hot water (submerging the kitchen waste is appropriate) is injected into the stirring device 2, the water inlet valve 221 is closed, and the first stirring machine 21 is started to stir, so that the kitchen waste is quickly dissolved. Wherein, the kitchen waste micromolecules with the water density similar to that of the water are dissolved in the water to form a dissolving pulp, the light waste is suspended on the upper layer of the dissolving pulp, and the heavy sand stone is deposited at the bottom of the stirring device 2.
Specifically, for collecting heavy grit better, agitating unit 2 bottom is the infundibulate, and installs the screen cloth in the funnel region, collects the large granule grit of deposit on the screen cloth, dissolves the thick liquid then filters out through the screen cloth.
The filtered slurry is transported to the blending tank 4 through a slurry pipe 100, and a slurry discharge valve 104 is provided at an end of the slurry pipe 100 to control the discharge amount of the slurry. Further, a slurry pump 103 is provided on the slurry pipe 100 to provide a power source for the transportation of the slurry.
Further, a sand discharge pipe 23 is provided at the bottom of the stirring device 2, and a nozzle is provided at the screen to discharge the heavy sand deposited on the screen. Further, a sand discharge valve 231 is provided on the sand discharge pipe 23 so as to periodically discharge sand to the stirring device 2.
For further processing the light garbage, the cooperative processing system also comprises a compression device 6, and the compression device 6 is used for compressing and dehydrating the light garbage in the stirring device 2. Preferably, the compressing device 6 is connected to the crushing device 1 to transfer the compressed light garbage to the crushing device 1 for secondary crushing to reduce the generation of garbage. Alternatively, to reduce the machine loss, a light garbage storage bin may be provided to stack the compressed light garbage, and when the light garbage is stored to a certain amount, the light garbage is moved to the crushing apparatus 1. Preferably, the compressing device 6 is connected with the stirring device 2 to reflux the water after compression and extraction into the stirring device 2 to improve the resource utilization rate. Specifically, one end of the compressing device 6 is connected to a light garbage discharging passage 61, and a light garbage discharging valve 611 is provided on the light garbage discharging passage 61 to periodically discharge the compressed light garbage. The other end of the compression device 6 is also communicated with a water return channel 62, and the water return channel 62 returns the water which is compressed and removed to the stirring device 2.
Further, the cooperative processing system further comprises a collecting rake device 7, wherein the collecting rake device 7 is used for fishing the light garbage in the stirring device 2 and transferring the light garbage to the compressing device 6. Specifically, the collecting rake device 7 comprises a raking hand grip 71 and a guide rod 72, the raking hand grip 71 is mounted on the guide rod 72, and the raking hand grip 71 is used for scooping the light garbage suspended in the stirring device 2; and the raking hand grip 71 can axially move and circumferentially rotate along the guide rod 72 so as to flexibly scoop and transfer the light garbage suspended in the stirring device 2 to the compressing device 6.
Optionally, in order to facilitate pre-stirring of the municipal sludge, a second stirrer 31 is provided in the sludge stirring tank 3, and the second stirrer 31 is provided at the center of the sludge stirring tank 3 to sufficiently stir the municipal sludge.
Optionally, in order to facilitate conveying the stirred municipal sludge into the blending tank 4, the co-processing system further comprises a sludge pipeline 200, wherein one end of the sludge pipeline 200 is communicated with the sludge stirring tank 3, and the other end is communicated with the blending tank 4. Further, a sludge pump 9 is also provided on the sludge pipeline 200 to power sludge delivery.
Further, a multilayer paddle type stirrer 41 is arranged in the blending tank 4 to stir municipal sludge and dissolving slurry, so that homogeneous mixing is realized, the synergistic effect among microorganisms is enhanced, and the subsequent fermentation efficiency is improved.
Optionally, the blending tank 4 is operated within a predetermined temperature range to ensure the activity of the microorganisms. Be equipped with first heat exchanger 8 on the sludge conduit 200 between sludge stirring pond 3 and the pool 4 that blends, be equipped with first temperature sensing appearance 42 in the pool 4 that blends, first temperature sensing appearance 42 is connected with first heat exchanger 8, and first heat exchanger 8 is configured to be when first temperature sensing appearance 42 detects that the temperature in the pool 4 that blends is less than first preset temperature (can be 4 +/-0.5 ℃), heats the municipal sludge in the sludge conduit 200.
Alternatively, the blend in the blending tank 4 is sent to an anaerobic membrane reaction device 5 for anaerobic fermentation. The co-processing system also includes a blend delivery conduit 300. One end of the blend conveying pipeline 300 is communicated with the blend tank 4, and the other end is communicated with the anaerobic membrane reaction device 5. Further, a lift pump 101 is also provided on the blend delivery pipe 300 to power the blend delivery.
Preferably, in order to enable the anaerobic membrane reactor 5 to perform fermentation within a certain preset temperature range all the time and ensure that the anaerobic reaction efficiency is highest, the second heat exchanger 10 is arranged on the blend conveying pipeline 300 between the anaerobic membrane reactor 5 and the blending tank 4, the second temperature sensing instrument 102 is arranged in the anaerobic membrane reactor 5, the second temperature sensing instrument 102 is connected with the second heat exchanger 10, and the second heat exchanger 10 is configured to heat the blend in the blend conveying pipeline 300 when the second temperature sensing instrument 102 detects that the temperature in the anaerobic membrane reactor 5 is lower than a second preset temperature (which may be 35 ℃).
Optionally, the anaerobic membrane reaction device 5 specifically comprises a reaction tank 51, a first gas collecting pipeline 52, a membrane module 53, an aeration disc 54 and a second gas collecting pipeline 55, wherein the reaction tank 51 is connected with the blending tank 4; the first gas collecting pipeline 52 is communicated with the reaction tank 51 and is used for outputting the generated methane for resource utilization; the membrane module 53 is arranged in the reaction tank 51, and the membrane module 53 is connected with a biogas slurry output pipeline 58 so as to collect and convey biogas slurry generated by anaerobic reaction; the aeration disc 54 is arranged in the reaction tank 51, and the aeration disc 54 is positioned below the membrane module 53, so that the membrane module 53 is cleaned by regular aeration, and the pollution of the membrane module 53 is reduced; one end of the second gas collecting pipeline 55 is communicated with the reaction tank 51, the other end is communicated with the aeration disc 54 to perform cyclic aeration by using the generated biogas, and an aeration pump 551 is arranged on the second gas collecting pipeline 55 to control the aeration of the aeration disc 54.
Specifically, in order to control the output of biogas, a gas collecting valve 521 is disposed on the first gas collecting pipeline 52.
Further, a liquid discharge pump 581 is provided on the biogas slurry output line 58 to pump out the biogas slurry generated in the membrane module 53 after the anaerobic reaction. Preferably, the drain pump 581 is a constant flow pump, and is periodically opened to discharge the biogas slurry generated by the anaerobic membrane reactor 5.
Optionally, the anaerobic membrane reactor 5 further comprises an air storage tank 56, the air storage tank 56 is communicated with one end of the second air collecting pipeline 55, and the aeration pump 551 is arranged between the air storage tank 56 and the aeration disc 54. The gas storage tank 56 is used for storing biogas for use when the aeration disc 54 is aerated. When the biogas aeration disc 54 is used, the gas collecting valve 521 on the first gas collecting pipeline 52 is periodically closed, and after the gas collecting valve 521 is closed, biogas enters the second gas collecting pipeline 55 and flows into the gas storage tank 56 through the second gas collecting pipeline 55 to be stored for the aeration disc 54 to use.
Further, in order to control the aeration pressure, a pressure gauge 561 is further provided in the air tank 56 to detect the pressure in the air tank 56, and when the pressure in the air tank 56 reaches a preset value, the aeration pump 551 is turned on for aeration, so that the membrane module 53 is cleaned by the aeration disc 54 and the muddy water in the reaction tank 51 is mixed. The mode of adopting the generated methane to carry out circular aeration avoids the intervention of external gas, ensures the anaerobic digestion environment and improves the anaerobic fermentation efficiency.
For the convenience of understanding the present invention, the working process of the cooperative processing system is described as follows:
1. the kitchen waste pretreatment process comprises the following steps: delivering the kitchen waste supplied materials to the smashing device 1 through a spiral elevator for smashing, delivering the smashed kitchen waste into the stirring device 2 for dissolving, opening the water inlet valve 221 to inject hot water, closing the water inlet valve 221 when the hot water submerges the kitchen waste, and simultaneously starting the first stirring machine 21 to rotate at a low speed to help the blocky waste to be separated and dissolved, and uniformly distributing the blocky waste to all positions in the stirring device 2. Then the first stirrer 21 rotates with high speed, the organic garbage with the density similar to that of water in the kitchen garbage solution forms suspended light garbage, and the sand and stone are deposited on the screen of the funnel part at the bottom of the stirring device 2 under the double actions of centrifugal force and gravity.
When more than 80% of kitchen waste is dissolved, the first stirrer 21 stops running, the collection rake device 7 is started, the rake hand 71 moves up and down along the guide rod 72 to the liquid level of the dissolving pulp, the light waste on the upper layer of the liquid level is fished and collected through rotation and movement, the collected light waste is sent to the compression device 6, the light waste is compressed and dehydrated by the compression device 6 and then sent to the light waste collection bin through the light waste discharge channel 61, the moisture extracted through compression flows back to the stirring device 2 through the backflow channel for recycling, and the light waste is sent back to the crushing device 1 for secondary crushing. After the above steps are completed, the slurry discharge valve 104 is opened, the slurry pump 103 is started, and the dissolved slurry is pumped into the blending tank 4 through the sieve plate by the slurry pump 103.
2. The municipal sludge pretreatment process comprises the following steps: the municipal sludge produced is input into the sludge stirring tank 3, the first stirrer 21 is started, the municipal sludge is guaranteed to be uniformly mixed through continuous stirring of the first stirrer 21, favorable conditions are created for subsequent uniform mixing with the kitchen waste in the blending tank 4, and then the sludge is pumped into the blending tank 4 through the sludge pump 9.
3. Mixing of kitchen waste and municipal sludge: a multilayer paddle type stirrer 41 is arranged in the blending tank 4, and the kitchen waste dissolving slurry and the municipal sludge are uniformly mixed through the stirring function of the multilayer paddle type stirrer 41. The first temperature sensing instrument 42 in the blending tank 4 detects the temperature of the blending tank 4 in real time to enable the temperature to be maintained at 4 +/-0.5 ℃, and when the detected temperature is lower than the temperature, the first heat exchanger 8 is started to heat the municipal sludge in the sludge pipeline 200, so that the temperature in the blending tank 4 is maintained at 4 +/-0.5 ℃. In addition, the flow rates of the slurry pump 103 and the sludge pump 9 are adjusted during the blending treatment to control the mixing proportion of the kitchen waste and the volatile organic compounds of the municipal sludge and enhance the synergistic effect among microorganisms.
4. Anaerobic digestion reaction: the blend mixed by the blending tank 4 is transferred to the anaerobic membrane reaction device 5 through the lift pump 101, the temperature in the device is detected through the second temperature sensing instrument 102, when the temperature in the anaerobic membrane reaction device 5 is lower than 35 ℃, the second heat exchanger 10 is started to heat the blend in the blend conveying pipeline 300, and when the temperature in the anaerobic membrane reaction device 5 is higher than 35 ℃, the heating of the second heat exchanger 10 is stopped, so that the anaerobic membrane reaction device 5 is always maintained in a proper temperature range.
Biogas generated by the anaerobic membrane reaction device 5 is conveyed out through the first gas collecting pipeline 52 for resource utilization, the gas collecting valve 521 on the first gas collecting pipeline 52 is periodically closed, the biogas enters the second gas collecting pipeline 55 after the gas collecting valve 521 is closed, the biogas enters the gas storage tank 56 through the second gas collecting pipeline 55, when the gas storage tank 56 reaches a certain upper pressure limit, the pressure gauge 561 sends a starting signal to the aeration pump 551 through the control system, so that circular aeration is performed on the diaphragm of the membrane component 53 in the reaction tank 51, the mixing of muddy water in the reaction tank 51 is promoted, and membrane pollution is reduced by utilizing the shearing action of the gas.
The biogas slurry generated after fermentation in the anaerobic membrane reactor 5 is discharged from the membrane module 53 through the biogas slurry output pipeline 58 by the liquid discharge pump 581 at regular intervals. The biogas residues generated after fermentation in the anaerobic membrane reactor 5 are discharged periodically through the biogas residue output pipeline 57 at the bottom of the reaction tank 51 by opening the slag discharge valve 572 and starting the slag discharge pump 571.
It can be understood that the kitchen waste pretreatment process and the municipal sludge pretreatment process are carried out synchronously, and then the mixing and anaerobic digestion reaction of the kitchen waste and the municipal sludge are carried out.
The utility model provides a municipal administration mud and kitchen garbage coprocessing system, stir kitchen garbage through setting up agitating unit 2, set up mud stirring pond 3 and stir municipal administration mud, and the kitchen garbage after will stirring and municipal administration mud input mix in the pond 4, input anaerobic membrane reaction unit 5 with the mixture and carry out anaerobic fermentation, the realization is to municipal administration mud and kitchen garbage's mixed fermentation, synergism between the microorganism has been strengthened, and stir municipal administration mud and kitchen garbage respectively in advance, with improvement municipal administration mud and kitchen garbage mixed homogeneity degree, fermentation efficiency is improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a municipal administration mud and kitchen garbage concurrent processing system which characterized in that includes:
the kitchen waste crushing device comprises a crushing device (1), wherein the crushing device (1) is used for crushing kitchen waste;
the stirring device (2) is connected with the crushing device (1) and is used for stirring the crushed kitchen waste to form dissolving pulp;
the sludge stirring tank (3) is used for storing and stirring municipal sludge;
the blending tank (4) is communicated with the stirring device (2) and the sludge stirring tank (3) and is used for mixing the municipal sludge conveyed by the sludge stirring tank (3) and the dissolving slurry conveyed by the stirring device (2);
the anaerobic membrane reaction device (5), the anaerobic membrane reaction device (5) with blend pond (4) are connected, be used for with after the mixing municipal sludge with the dissolving pulp carries out anaerobic fermentation.
2. The municipal sludge and kitchen waste co-processing system according to claim 1, wherein the stirring device (2) is further connected with a water inlet pipe (22).
3. The municipal sludge and kitchen waste co-processing system according to claim 1, further comprising a compression device (6), wherein the compression device (6) is used for compressing and dehydrating the light waste in the stirring device (2);
the compression device (6) is connected with the crushing device (1) so as to transfer the compressed light garbage to the crushing device (1) for secondary crushing;
the compression device (6) is connected with the stirring device (2) so as to reflux the water which is dehydrated by compression into the stirring device (2).
4. The municipal sludge and kitchen waste co-processing system according to claim 3, further comprising a collection rake device (7), wherein the collection rake device (7) is used for fishing the light waste in the stirring device (2) and transferring the light waste to the compressing device (6).
5. The municipal sludge and kitchen waste co-processing system according to claim 4, wherein said collection rake means (7) comprises:
the raking gripper (71), the raking gripper (71) is used for fishing the light garbage suspended in the stirring device (2);
the guide rod (72), the raking hand grip (71) is installed on the guide rod (72), and the raking hand grip (71) can axially move and circumferentially rotate along the guide rod (72).
6. The municipal sludge and kitchen waste co-processing system according to claim 1, wherein a multi-layer paddle type stirrer (41) is arranged in the blending tank (4).
7. The municipal sludge and kitchen waste co-processing system according to claim 1, wherein a first heat exchanger (8) is disposed on a sludge pipeline (200) between the sludge stirring tank (3) and the blending tank (4), a first temperature sensing instrument (42) is disposed in the blending tank (4), the first temperature sensing instrument (42) is connected to the first heat exchanger (8), and the first heat exchanger (8) is configured to heat the municipal sludge in the sludge pipeline (200) when the first temperature sensing instrument (42) detects that the temperature in the blending tank (4) is lower than a first preset temperature.
8. The municipal sludge and kitchen waste co-processing system according to claim 1, wherein a second heat exchanger (10) is arranged on the blend conveying pipeline (300) between the anaerobic membrane reaction device (5) and the blending tank (4), a second temperature sensor (102) is arranged in the anaerobic membrane reaction device (5), the second temperature sensor (102) is connected with the second heat exchanger (10), and the second heat exchanger (10) is configured to heat the blend in the blend conveying pipeline (300) when the second temperature sensor (102) detects that the temperature in the anaerobic membrane reaction device (5) is lower than a second preset temperature.
9. The municipal sludge and kitchen waste co-processing system according to claim 1, wherein said anaerobic membrane reaction device (5) comprises:
a reaction tank (51), wherein the reaction tank (51) is connected with the blending pool (4);
the first gas collecting pipeline (52), the first gas collecting pipeline (52) is communicated with the reaction tank (51) and is used for outputting the generated biogas;
the membrane module (53) is arranged in the reaction tank (51), and the membrane module (53) is connected with a biogas slurry output pipeline;
an aeration disc (54), wherein the aeration disc (54) is arranged in the reaction tank (51), and the aeration disc (54) is positioned below the membrane module (53);
one end of the second gas collection pipeline (55) is communicated with the reaction tank (51), one end of the second gas collection pipeline (55) is communicated with the aeration disc (54), and an aeration pump (551) is arranged on the second gas collection pipeline (55).
10. The municipal sludge and kitchen waste co-processing system according to claim 9, wherein the anaerobic membrane reaction device (5) further comprises a gas storage tank (56), the gas storage tank (56) is communicated with one end of the second gas collection pipeline (55), and the aeration pump (551) is arranged between the gas storage tank (56) and the aeration disc (54).
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| CN202020189640.2U CN211871991U (en) | 2020-02-20 | 2020-02-20 | Municipal administration mud and kitchen garbage concurrent processing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113634581A (en) * | 2021-08-16 | 2021-11-12 | 江苏泓润生物质能科技有限公司 | Multi-source waste composite treatment system and method |
| CN114032255A (en) * | 2022-01-11 | 2022-02-11 | 中国农业科学院农业环境与可持续发展研究所 | Anaerobic digestion method for improving biogas production efficiency |
| CN115193883A (en) * | 2022-06-09 | 2022-10-18 | 昭通市世和物业管理有限公司 | Method and device for treating liquid waste garbage |
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2020
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113634581A (en) * | 2021-08-16 | 2021-11-12 | 江苏泓润生物质能科技有限公司 | Multi-source waste composite treatment system and method |
| CN113634581B (en) * | 2021-08-16 | 2022-06-24 | 江苏泓润生物质能科技有限公司 | Multi-source waste composite treatment system and method |
| CN114032255A (en) * | 2022-01-11 | 2022-02-11 | 中国农业科学院农业环境与可持续发展研究所 | Anaerobic digestion method for improving biogas production efficiency |
| CN115193883A (en) * | 2022-06-09 | 2022-10-18 | 昭通市世和物业管理有限公司 | Method and device for treating liquid waste garbage |
| CN115193883B (en) * | 2022-06-09 | 2024-04-19 | 昭通市世和物业管理有限公司 | Liquid waste garbage treatment method and device |
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