CN112390469A - Municipal sludge thermalization equipment and process - Google Patents

Municipal sludge thermalization equipment and process Download PDF

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Publication number
CN112390469A
CN112390469A CN202011262661.3A CN202011262661A CN112390469A CN 112390469 A CN112390469 A CN 112390469A CN 202011262661 A CN202011262661 A CN 202011262661A CN 112390469 A CN112390469 A CN 112390469A
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CN
China
Prior art keywords
sludge
tank
sewage
filter plate
treatment
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CN202011262661.3A
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Chinese (zh)
Inventor
王磊
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Guangdong Qingjing Shijia Environmental Technology Co ltd
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Guangdong Qingjing Shijia Environmental Technology Co ltd
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Priority to CN202011262661.3A priority Critical patent/CN112390469A/en
Publication of CN112390469A publication Critical patent/CN112390469A/en
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C02F3/347—Use of yeasts or fungi

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a device and a process for thermalizing municipal sludge, which have the technical scheme that: the device comprises a treatment device, a fine grid, a sludge tank, a sedimentation tank, a sludge pump, a biochemical tank, a disinfection tank and a sludge dryer, wherein the treatment device comprises a treatment kettle, the top of the treatment kettle is provided with a liquid injection port, the inner wall of the liquid injection port is fixedly provided with a separation plate, the inner wall of the treatment kettle is in threaded connection with a pin rod, one end of the pin rod is fixedly provided with a split plate, the inner cavity of the treatment kettle is internally provided with a separation plate, and the treatment kettle is provided with a chute, a medicine outlet, a sludge outlet and a water outlet, and the device has the beneficial effects that: the sewage treatment device is arranged to pretreat sewage, the sewage is preliminarily filtered by the filter plate, when the sludge on the filter plate is too much, the filter plate automatically moves downwards, the filter plate is enabled to remove the blockage of the medicine outlet, a flocculating agent and an auxiliary material are injected into the sewage, the sewage is pretreated, the standing time of the sedimentation tank is shortened, and the treatment efficiency is accelerated.

Description

Municipal sludge thermalization equipment and process
Technical Field
The invention relates to the technical field, in particular to municipal sludge thermalization equipment and a municipal sludge thermalization process.
Background
The domestic sewage, the industrial wastewater and the runoff sewage within the urban area range are generally collected by urban pipelines and treated by an urban sewage treatment plant and then discharged into a water body, the urban sewage contains a large amount of organic matters, germs and viruses, and due to the advanced development of the industry, the water quality of the industrial wastewater (about 60-80 percent of the total amount of the urban sewage) is increasingly complex and the pollution of the runoff sewage is increasingly serious, so that the urban sewage contains various toxic and harmful pollutants with various types and different degrees, the treatment of the urban sewage relates to various aspects, and the system of a sewer, the position and the treatment process of the sewage treatment plant, the utilization and the discharge requirements of the treated sewage and the like are comprehensively planned; the sewage contains sludge and other solid impurities.
When the existing urban sludge is treated, biochemical substances are required to be added into a sedimentation tank, the sedimentation tank needs to be kept still for a long time, and then sediments and sludge are conveyed to sludge thermalization equipment together for treatment.
Therefore, the invention of the municipal sludge thermalization equipment and process is necessary.
Disclosure of Invention
Therefore, the invention provides municipal sludge thermalization equipment and a municipal sludge thermalization process, wherein a treatment device is arranged to treat municipal sludge sewage in advance, sludge is filtered out firstly, and a flocculating agent and auxiliary materials are reacted with the sewage firstly, so that organic matters and inorganic matters in the sewage are precipitated, the standing time in a sedimentation tank is shortened, the sludge treatment speed is accelerated, and the problem of low treatment efficiency of the traditional sludge is solved.
In order to achieve the above purpose, the invention provides the following technical scheme:
the municipal sludge thermalization equipment comprises a treatment device, a fine grid, a sludge tank, a sedimentation tank, a sludge pump, a biochemical tank, a disinfection tank and a sludge dryer, wherein the treatment device comprises a treatment kettle, the top of the treatment kettle is provided with a liquid injection port, the inner wall of the liquid injection port is fixedly provided with a baffle plate, the inner wall of the treatment kettle is in threaded connection with a pin rod, one end of the pin rod is fixedly provided with a split plate, the inner cavity of the treatment kettle is provided with a baffle plate, the treatment kettle is provided with a chute, a medicine outlet, a sludge outlet and a water outlet, the inner wall of the chute is in sliding connection with a filter plate, the top of the filter plate is fixedly provided with a cylinder, one end of the cylinder is fixedly provided with a U-shaped scraper, the outer wall of the U-shaped scraper is fixedly provided with a hairbrush, the inner wall of the filter plate is inserted with a slide, the utility model discloses a liquid injection port, including servo motor output fixed connection puddler, division board both ends fixed mounting dog, annotate liquid mouth top fixed mounting flange, form the diffluence pass between baffler and the open-close plate.
Preferably, the sludge outlet is fixedly connected with a sludge tank through a guide pipe, the water outlet is fixedly connected with a sedimentation tank through a guide pipe, and a fine grid is arranged inside the sedimentation tank.
Preferably, the upper part of the sedimentation tank is fixedly connected with a sludge tank through a sludge pump and a guide pipe, the lower part of the sedimentation tank is fixedly connected with a biochemical tank through a water pump and a guide pipe, and the biochemical tank is fixedly connected with a disinfection tank through a guide pipe and a water pump.
Preferably, a flocculating agent and an auxiliary material are arranged in the medicine storage box, and the weight ratio of the flocculating agent to the auxiliary material is 19: 20.
Preferably, the flocculating agent is ferric trichloride, polymeric silicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric phosphate and polymeric ferric chloride, and the flocculating agent is prepared from the following components in percentage by weight of 7-9: 3-5: 4-6: 5-11: 8-12 weight ratio.
Preferably, the auxiliary material is provided as expanded fiber.
Preferably, the method specifically comprises the following steps:
s1, connecting a flange by a guide pipe, pumping the municipal sewage into the treatment kettle by a water pump at a liquid injection port, stopping the sludge in the sewage on a filter plate by the filter plate, moving the sludge and the filter plate downwards to compress a spring when the sludge is more and more gathered, moving the filter plate downwards to an abutting stop block, and losing the blockage of the sludge outlet and the medicine outlet at the two ends of the filter plate;
s2, enabling a mixture of the flocculating agent and the auxiliary materials in the medicine storage tank to enter a treatment kettle, driving a stirring rod by a servo motor to stir sewage, enabling the mixture of the flocculating agent and the auxiliary materials to be uniformly mixed with the sewage, and enabling the sewage to enter a sedimentation tank through a water outlet;
s3, the air cylinder pushes the U-shaped scraper to move, sludge on the filter plate is pushed out of the treatment kettle, and the sludge is conveyed into a sludge tank through a guide pipe and a sludge pump and then is treated by a sludge dryer;
s4, stirring the sewage in the sedimentation tank in the step S2 by an air floatation machine, removing oil on the surface, pumping the sewage in the sedimentation tank into a biochemical tank, discharging the sediment at the bottom of the sedimentation tank into a sludge tank through a sludge pump, adding a lactic acid bacteria group, a yeast bacteria group, a bacillus bacteria group and a photosynthetic bacteria group into the biochemical tank, and discharging the sewage in the biochemical tank into a disinfection tank after 2 hours;
s5, adding a mixture of ferric sulfate and aluminum sulfate in a weight ratio of 1:2 into the disinfection tank, and reacting for 2 hours.
Preferably, the weight ratio of the lactic acid bacteria flora to the yeast flora to the bacillus flora to the photosynthetic bacteria flora is 5-8: 4-7: 18-28: 2-4.
The invention has the beneficial effects that:
the sewage treatment device is arranged to pretreat the sewage, the sewage is preliminarily filtered by the filter plate, when the sludge on the filter plate is excessive, the filter plate automatically moves downwards to enable the filter plate to remove the blockage of the medicine outlet, and a flocculating agent and auxiliary materials are injected into the sewage to pretreat the sewage, so that the standing time of the sedimentation tank is shortened, and the treatment efficiency is accelerated;
the arranged cylinder and the scraper can push the filtered sludge out of the treatment kettle, so that most of the sludge in the sewage is filtered out, and the burden of a sedimentation tank is reduced;
the servo motor and the stirring rod are arranged, so that sewage entering the treatment kettle, ferric trichloride, polysilicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric phosphate and polymeric ferric chloride are fully and uniformly stirred, the stirring time of the sedimentation tank is shortened, and the treatment efficiency is accelerated
Drawings
FIG. 1 is a schematic structural diagram of a processing apparatus according to the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is a schematic view of the connection between the pin and the plate according to the present invention;
FIG. 4 is an enlarged view of the invention at B;
FIG. 5 is an enlarged view of the slide bar and spring provided by the present invention;
FIG. 6 is a flow chart provided by the present invention.
In the figure: the device comprises a processing device 1, a processing kettle 2, a liquid injection port 3, a flange 4, a pin rod 5, a blocking plate 6, a flow dividing port 7, an opening plate 8, a medicine storage box 10, a mud outlet 11, a stirring rod 12, a sliding chute 13, a filter plate 14, a sliding rod 15, a spring 16, a medicine outlet 17, a water outlet 18, a servo motor 19, an air cylinder 20, a U-shaped scraper 21, a hairbrush 22, a sludge tank 23, a sludge dryer 24, a disinfection tank 25, a biochemical tank 26, a sludge pump 27, a sedimentation tank 28, a fine grid 29, a partition plate 30 and a stop block 31.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
referring to the attached figures 1-6 of the specification, the municipal sludge thermalization equipment and process of the embodiment comprises a treatment device 1, a fine grid 29, a sludge tank 23, a sedimentation tank 28, a sludge pump 27, a biochemical tank 26, a disinfection tank 25 and a sludge dryer 24, wherein the treatment device 1 comprises a treatment kettle 2, the top of the treatment kettle 2 is provided with a liquid injection port 3, the inner wall of the liquid injection port 3 is fixedly provided with a baffle plate 6, the inner wall of the treatment kettle 2 is in threaded connection with a pin rod 5, one end of the pin rod 5 is fixedly provided with an opening plate 8, the inner cavity of the treatment kettle 2 is provided with the baffle plate 30, the treatment kettle 2 is provided with a chute 13, a medicine outlet 17, a sludge outlet 11 and a water outlet 18, the inner wall of the chute 13 is in sliding connection with a filter plate 14, the top of the filter plate 14 is fixedly provided with a cylinder 20, one end of the cylinder 20 is fixedly provided with a U-shaped, a slide rod 15 is inserted into the inner wall of the filter plate 14, a spring 16 is sleeved on the outer wall of the slide rod 15, the medicine outlet 17 is fixedly connected with the medicine storage box 10 through a guide pipe, a servo motor 19 is arranged below the treatment kettle 2, the output end of the servo motor 19 is fixedly connected with the stirring rod 12, stop blocks 31 are fixedly installed at two ends of the partition plate 30, a mounting flange 4 is fixed at the top of the liquid injection port 3, and a shunting port 7 is formed between the blocking plate 6 and the opening plate 8; the treatment device 1 is used for filtering most of sludge, so that the sludge is conveniently treated, and sewage is treated; the liquid injection port 3 is used for injecting a mixture of municipal sewage and sludge, and the flange 4 is used for facilitating the connection of a guide pipe; the pin rod 5 is used for driving the opening plate 8 to move, so that the size of the diversion port 7 is changed, the flow entering the treatment kettle 2 is changed, the baffle plate 6 is used for being matched with the opening plate 8 to form the diversion port 7 so as to change the diversion port 7, the medicine storage box 10 is used for storing flocculating agents and auxiliary materials so as to conveniently inject ferric trichloride, polysilicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric chloride and extruded fibers into the treatment kettle 2, sewage is pretreated, the later-stage sedimentation tank is used for precipitating 28 more quickly, and the burden of the sedimentation tank 28 is reduced; the sludge outlet 11 is used for discharging sludge on the filter plate 14 to the outside of the treatment kettle 2, and the stirring rod 12 is used for uniformly stirring ferric trichloride, polysilicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric chloride, expanded fibers and sewage for better reaction; the chute 13 is used for sliding two ends of the filter plate 14, the filter plate 14 is used for filtering sewage and blocking the sludge above so as to separate the sludge, the water outlet 18 is used for discharging the sewage into the sedimentation tank 28, the servo motor 19 is set to be JSF 57-15-30-BF-1000, the servo motor 19 is used for driving the stirring rod 12 to rotate, the air cylinder 20 is used for driving the U-shaped scraper 21 to move and pushing the sludge on the filter plate 14 out of the treatment kettle 2, the hairbrush 22 is used for strongly driving the filter plate 14 so as to avoid blockage of the filter plate 14, the disinfection tank 25 is used for disinfecting the sewage, the biochemical tank 26 is used for fermenting and degrading the sewage, the sludge pump 27 is set to be 25ZW8-15, and the sludge pump 27 is used for pumping sediment at the bottom of the sedimentation tank 28 into the sludge tank 23.
Further, the sludge outlet 11 is fixedly connected with a sludge tank 23 through a conduit, the water outlet 18 is fixedly connected with a sedimentation tank 28 through a conduit, and a fine grid 29 is arranged in the sedimentation tank 28; the fine grid 29 functions to filter fine particles in the sewage.
Further, the upper part of the sedimentation tank 28 is fixedly connected with the sludge tank 23 through a sludge pump 27 and a guide pipe, the lower part of the sedimentation tank 28 is fixedly connected with the biochemical tank 26 through a water pump and a guide pipe, and the biochemical tank 26 is fixedly connected with the disinfection tank 25 through a guide pipe and a water pump.
Further, a flocculating agent and an auxiliary material are arranged in the medicine storage box 10, and the weight ratio of the flocculating agent to the auxiliary material is 19: 20.
Further, the flocculating agent is ferric trichloride, polymeric silicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric phosphate and polymeric ferric chloride, and the ratio of the polymeric ferric phosphate to the polymeric ferric chloride is 10: 7: 3: 4: 5: 8 in a weight ratio.
Further, the auxiliary material is set to be expanded fiber.
Further, the method specifically comprises the following steps:
s1, connecting the flange 4 with a guide pipe, pumping the urban sewage into the treatment kettle 2 through the liquid injection port 3 and a water pump, wherein the sludge in the sewage is blocked on the sludge by the filter plate 14, when the more the sludge is gathered, the sludge and the filter plate 14 move downwards to compress the spring 16, the filter plate 14 moves downwards to abut against the stop block 31, and the two ends of the filter plate 14 lose the blockage of the sludge outlet 11 and the medicine outlet 17;
s2, enabling a mixture of the flocculating agent and the auxiliary materials in the medicine storage box 10 to enter the treatment kettle 2, driving the stirring rod 12 by the servo motor 19 to stir the sewage, enabling the mixture of the flocculating agent and the auxiliary materials to be uniformly mixed with the sewage, and enabling the sewage to enter the sedimentation tank 28 through the water outlet 18;
s3, the air cylinder 20 pushes the U-shaped scraper 21 to move, sludge on the filter plate 14 is pushed out of the treatment kettle 2, and the sludge is conveyed into a sludge pool 23 through a guide pipe and a sludge pump 27 and then is treated by a sludge dryer 24;
s4, stirring the sewage in the sedimentation tank 28 in the step S2 by an air floatation machine, removing oil on the surface, pumping the sewage in the sedimentation tank 28 into the biochemical tank 26, discharging the sediment at the bottom of the sedimentation tank 28 into a sludge tank 23 through a sludge pump 27, adding lactic acid bacteria flora, yeast bacteria flora, bacillus bacteria flora and photosynthetic bacteria flora into the biochemical tank 26, and discharging the sewage in the biochemical tank 26 into the disinfection tank 25 after 2 h;
s5, adding a mixture of ferric sulfate and aluminum sulfate in a weight ratio of 1:2 into the disinfection tank 25, and reacting for 2 hours.
Further, the weight ratio of the lactic acid bacteria group, the yeast bacteria group, the bacillus bacteria group and the photosynthetic bacteria group is 5:5:16: 3.
Example 2:
referring to the attached drawings 1-6 of the specification, the difference from the embodiment 1 is that: the weight ratio of ferric trichloride to polymeric silicic acid to polymeric ferric sulfate to polymeric aluminum phosphate to polymeric ferric chloride is 9:5:4:7:9, and the weight ratio of the lactobacillus group, the yeast group, the bacillus group and the photosynthetic bacteria group is 6:5:23: 2.
Removal rates for removing ammonia nitrogen compounds and sulfides in examples 1 and 2
Example 1 Example 2
Ammonia nitrogen compound 98.3％ 97.7％
Sulfide compound 96.3％ 97.3％
As can be seen from the above table, examples 1 and 2 both performed well on the removal of the ammonia nitrogen compound and the sulfide, and the removal rate of the ammonia nitrogen compound in example 1 was higher than that in example 2, and the removal rate of the sulfide in example 2 was higher than that in example 1.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims (8)

1. Municipal sludge thermalization equipment, including processing apparatus (1), fine grid (29), sludge impoundment (23), sedimentation tank (28), sludge pump (27), biochemical pond (26), disinfection pond (25) and sludge drying machine (24), its characterized in that: the treatment device (1) comprises a treatment kettle (2), wherein the top of the treatment kettle (2) is provided with a liquid injection port (3), the liquid injection port (3) is provided with an inner wall fixed mounting baffle plate (6), the treatment kettle (2) is provided with an inner wall threaded connection pin rod (5), one end of the pin rod (5) is fixedly mounted with an opening plate (8), the treatment kettle (2) is provided with a separation plate (30) in an inner cavity, the treatment kettle (2) is provided with a chute (13), a medicine outlet (17), a mud outlet (11) and a water outlet (18), the chute (13) is slidably connected with a filter plate (14) in the inner wall, the top of the filter plate (14) is fixedly mounted with an air cylinder (20), one end of the air cylinder (20) is fixedly mounted with a U-shaped scraper (21), the outer wall of the U-shaped scraper (21) is fixedly mounted with a brush (22, slide bar (15) outer wall cup joints spring (16), go out medicine mouth (17) and pass through pipe fixed connection explosive box (10), it is equipped with servo motor (19) to handle cauldron (2) below, servo motor (19) output end fixed connection puddler (12), division board (30) both ends fixed mounting dog (31), annotate liquid mouth (3) top fixed mounting flange (4), form between baffler (6) and opening plate (8) diffluence pass (7).
2. The municipal sludge thermalization apparatus and process of claim 1, wherein: the sludge outlet (11) is fixedly connected with a sludge tank (23) through a guide pipe, the water outlet (18) is fixedly connected with a sedimentation tank (28) through a guide pipe, and a fine grid (29) is arranged in the sedimentation tank (28).
3. The municipal sludge thermalization apparatus of claim 1, wherein: the device is characterized in that a sludge pump (27) and a guide pipe are fixedly connected to a sludge tank (23) above the sedimentation tank (28), a water pump and a guide pipe fixedly connected to a biochemical tank (26) are arranged below the sedimentation tank (28), and the biochemical tank (26) is fixedly connected to a disinfection tank (25) through the guide pipe and the water pump.
4. The municipal sludge thermalization apparatus of claim 1, wherein: a flocculating agent and an auxiliary material are arranged in the medicine storage box (10), and the weight ratio of the flocculating agent to the auxiliary material is 19-21: 20-24.
5. The municipal sludge thermalization apparatus of claim 4, wherein: the flocculating agent is prepared from ferric trichloride, polysilicic acid, polymeric ferric sulfate, polymeric aluminum phosphate, polymeric ferric phosphate and polymeric ferric chloride according to the ratio of 8-10: 7-9: 3-5: 4-6: 5-11: 8-12 weight ratio.
6. The municipal sludge thermalization apparatus of claim 4, wherein: the auxiliary material is set as expanded fiber.
7. The municipal sludge thermalization process is characterized by comprising the following steps:
s1, connecting a flange (4) with a guide pipe, pumping the urban sewage into a treatment kettle (2) through a liquid injection port (3) and a water pump, wherein the sludge in the sewage is blocked on the sludge by a filter plate (14) by the filter plate (14), when the sludge is more and more gathered, the sludge and the filter plate (14) move downwards to compress a spring (16), the filter plate (14) moves downwards to an abutting stop block (31), and the two ends of the filter plate (14) lose the blockage of a sludge outlet (11) and a medicine outlet (17);
s2, enabling a mixture of the flocculating agent and the auxiliary materials in the medicine storage box (10) to enter a treatment kettle (2), driving a stirring rod (12) by a servo motor 19 to stir sewage, enabling the mixture of the flocculating agent and the auxiliary materials to be uniformly mixed with the sewage, and enabling the sewage to enter a sedimentation tank (28) through a water outlet (18);
s3, the air cylinder (20) pushes the U-shaped scraper (21) to move, sludge on the filter plate 14 is pushed out of the treatment kettle (2), and the sludge is conveyed into a sludge pool (23) through a guide pipe and a sludge pump (27) and then is treated by a sludge dryer (24);
s4, stirring the sewage in the sedimentation tank (28) in the step S2 by an air floatation machine, removing oil on the surface, pumping the sewage in the sedimentation tank (28) into a biochemical tank (26), discharging the sediment at the bottom of the sedimentation tank (28) into a sludge tank (23) through a sludge pump (27), adding lactic acid bacteria flora, yeast bacteria flora, bacillus bacteria flora and photosynthetic bacteria flora into the biochemical tank (26), and discharging the sewage in the biochemical tank (26) into a disinfection tank (25) after 2 hours;
s5, adding a mixture of ferric sulfate and aluminum sulfate in a weight ratio of 1:2 into the disinfection tank (25), and reacting for 2 hours.
8. The municipal sludge thermalization process of claim 7, wherein: the weight ratio of the lactic acid bacteria flora to the yeast flora to the bacillus flora to the photosynthetic bacteria flora is 5-8: 4-7: 18-28: 2-4.
CN202011262661.3A 2020-11-12 2020-11-12 Municipal sludge thermalization equipment and process Withdrawn CN112390469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011262661.3A CN112390469A (en) 2020-11-12 2020-11-12 Municipal sludge thermalization equipment and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011262661.3A CN112390469A (en) 2020-11-12 2020-11-12 Municipal sludge thermalization equipment and process

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Publication Number Publication Date
CN112390469A true CN112390469A (en) 2021-02-23

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CN202011262661.3A Withdrawn CN112390469A (en) 2020-11-12 2020-11-12 Municipal sludge thermalization equipment and process

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114275930A (en) * 2021-12-16 2022-04-05 李鑫虎 Multistage sedimentation tank is used in chalcopyrite ore dressing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114275930A (en) * 2021-12-16 2022-04-05 李鑫虎 Multistage sedimentation tank is used in chalcopyrite ore dressing

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Application publication date: 20210223