Preparation method of a municipal sludge treatment agent with high efficiency deodorization

Abstract

The present invention provides a method for preparing a municipal sludge treatment agent with high efficiency in deodorization, comprising: adding activated carbon, diatomaceous earth, and ginger extract to the sludge, and carrying out a stirring reaction; adding sodium citrate and ferrous sulfate, and carrying out a stirring reaction; adding allicin, and carrying out a stirring reaction; adding photosynthetic bacteria and Bacillus, and carrying out a stirring reaction, and then standing for a first preset time; adding a cationic flocculant and an iron salt, and carrying out a stirring reaction; the sludge after the reaction is completed enters a filter press mechanism for a pressure filter. The materials of the present invention are mostly biological extractions or microorganisms, which are environmentally friendly materials, do not contain a large amount of inorganic salt products, will not cause sludge to become compacted, and will not affect subsequent treatment processes; from the aspects of odor elimination, excess sludge modification, chemical environment improvement, and microbial type transformation, the combined action of multiple aspects completely changes the mud properties and prevents the sludge from anaerobic odorization; it is environmentally friendly and has a long deodorization duration; it has a good detoxification effect on excess sludge with excessive heavy metals.

Description

Technical Field

[0001] The present invention relates to the field of sludge treatment, in particular to a method for preparing a municipal sludge treatment agent with high efficiency in deodorization, which can be applied to the field of water, wastewater, sewage or sludge treatment. Background Art

[0002] Most sludge treatment agents on the market are mainly polymer flocculants combined with inorganic salts or fragrance deodorants.

[0003] Reducing the moisture content of sludge through a plate and frame filter press requires the addition of large amounts of lime products, which accumulates a significant amount of calcium ions in the sludge, severely impacting subsequent sludge disposal. Inorganic salt deodorizers can temporarily eliminate hydrogen sulfate or ammonia produced during the anaerobic fermentation of sludge. However, the addition of large amounts of inorganic salts can lead to sludge compaction, exacerbating the anaerobic state and making it more susceptible to the subsequent generation of odorous gases. Furthermore, because they fail to inhibit the activity of anaerobic bacteria and do not alter the anaerobic nature of the sludge, inorganic salt products cannot fundamentally address the sludge odor problem.

[0004] Fragrance products temporarily cover and absorb odorous substances through fragrance, without changing the mud properties and anaerobic state of sludge. As a result, fragrance products can only enhance the sensory odor for a short period of time, but cannot eliminate the odor.

[0005] As people's living standards improve, their demands for the environment and air quality are increasing. The requirements for sludge treatment are becoming increasingly stringent. In addition to normal dehydration, the requirements for sludge deodorization are also becoming increasingly stringent. During the treatment and storage process, the excess sludge from sewage treatment plants can easily produce large amounts of ammonia nitrogen, hydrogen sulfide, methyl mercaptan, and ethers due to anaerobic conditions. This can lead to excessive odor concentrations and gas emissions from sewage treatment plants and sludge treatment plants, seriously affecting the normal production and life of surrounding residents. Summary of the Invention

[0006] The present invention provides a method for preparing a municipal sludge treatment agent with high efficiency in deodorization, which is used to solve the problems raised in the background art:

[0007] The existing technology has problems with deodorization using inorganic salt deodorants and fragrance deodorants.

[0008] In order to solve the above technical problems, the present invention discloses a method for preparing a municipal sludge treatment agent with high efficiency deodorization, comprising:

[0009] Step 1: Add activated carbon, diatomaceous earth and ginger extract to the sludge and stir to react;

[0010] Step 2: Add sodium citrate and ferrous sulfate and stir to react;

[0011] Step 3: Add allicin and stir to react;

[0012] Step 4: Add photosynthetic bacteria and Bacillus, stir to react, and then let it stand for a first preset time;

[0013] Step 5: Add cationic flocculant and iron salt and stir to react;

[0014] Step 6: After the reaction in step 5 is completed, the sludge enters the filter press mechanism for filtration.

[0015] Preferably, the mass of each component in step 1 is: activated carbon 1%-5%, diatomaceous earth 1%-5%, ginger extract 1‰

[0016] -5‰;

[0017] The mass of each component in step 2 is: sodium citrate 1%-5%, ferrous sulfate 1%-2%;

[0018] The mass of each component in step 3 is: allicin 0.5%-2.5%.

[0019] Preferably, the concentration of Bacillus in step 4 is 10-100 ppm, and the concentration of iron salt in step 5 is 10-50 ppm.

[0020] Preferably, the method further includes step 7: the sludge discharged from the filter press is crushed by a crushing mechanism, and after the sludge is crushed, it is transported to a drying yard for drying.

[0021] Steps 6 and 7 are performed based on a first preparation device, which includes a filter press mechanism and a crushing mechanism;

[0022] The filter press mechanism comprises: a first housing, an opening being provided at an upper end of the first housing, the first housing being divided into an upper cavity and a lower cavity by a first horizontal partition, a plurality of groups of filter press assemblies being arranged horizontally at intervals on the left and right sides of the upper cavity, the filter press assemblies being slidably connected to the front and rear inner walls of the upper cavity; a first drive assembly being connected to one side of the plurality of groups of filter press assemblies, the first drive assembly being used to drive the filter press assemblies to slide, a plurality of first vertical through holes being horizontally spaced apart in the first horizontal partition, the first vertical through holes being used to insert filter screens;

[0023] The crushing mechanism includes: a second box body, the second box body is fixedly connected to one side of the first box body, the first box body and the second box body are both fixedly connected to the upper end of the base through a first vertical bracket, and a crushing assembly is connected to the second box body.

[0024] Preferably, a driving cavity is provided on the left or right side of the first box body, and the driving component 1 is connected in the driving cavity, and the driving component 1 includes: a vertical guide rod, the vertical guide rod is fixedly connected to the upper and lower inner walls of the driving cavity, and guide blocks are provided on the upper and lower inner walls of the driving cavity close to the filter press assembly, and the upper and lower ends of the pressure plate are respectively slidably connected to the two guide blocks, and two second sliders are slidably sleeved on the vertical guide rod, and the two second sliders are driven by the driving mechanism 1 to approach or move away from each other, and the side of the pressure plate close to the vertical guide rod is slidably connected to a connecting seat, and the two support rods are cross-arranged, and the two ends of the support rod are respectively hinged to the second slider and the connecting seat.

[0025] Preferably, the first preparation device further includes a support and discharge mechanism, which includes: a mounting seat, a plurality of mounting grooves are horizontally spaced apart on the mounting seat, a side of the mounting seat away from the second box body is hinged to the first horizontal partition, the mounting grooves correspond one-to-one to the first vertical through holes, the filter screen is slidably connected in the mounting grooves by an elastic connection mechanism, the upper end of the vertical rod is in contact with a side of the lower end of the mounting seat close to the second box body, the lower end of the vertical rod is fixedly connected to the lifting end of the lifting drive device, and the fixed end of the lifting drive device is fixedly connected to the upper end of the base; the second box body and the lower cavity are connected through a discharge channel;

[0026] The elastic connection mechanism includes: several groups of connection structures, which are arranged at intervals along the circumference of the filter screen, and the connection structure includes: a third slider, which is fixedly arranged on the side wall of the filter screen, and a vertical slide groove is arranged on the inner side of the installation groove. The third slider is slidably connected in the vertical slide groove, and a support spring 1 is fixedly connected between the third slider and the inner wall of the lower end of the installation groove; a driving mechanism 2 is used to drive the third slider to slide downward in the installation groove.

[0027] Preferably, steps 1 to 5 are performed based on a second preparation device, and the second preparation device includes:

[0028] a third box, the upper end of the third box being fixedly connected to the fourth box, the upper end of the fourth box being fixedly connected to the fifth box via a third vertical bracket, the fourth box being divided from top to bottom into a first cavity and a second cavity by a second horizontal partition, the third box being connected to a stirring assembly, the first cavity being connected to the third box via a second pipe, and the second pipe being connected to a second electric valve;

[0029] A plurality of groups of multifunctional sludge treatment components are arranged horizontally at intervals, and the multifunctional sludge treatment components are connected to the first cavity and the second cavity. Each multifunctional sludge treatment component is connected to the fifth box through a first pipe, and the first pipe is connected to a first electric valve.

[0030] Preferably, the multifunctional sludge treatment component includes: a vertical sleeve, the vertical sleeve passes through the upper end of the fourth box body, each vertical sleeve is connected to the fifth box body through the first pipe, and a second vertical through hole is provided on the second horizontal partition directly below each vertical sleeve, the support plate is driven by the driving component 2 to slide in the second cavity along the up and down direction, and a plurality of sealing blocks are provided on the upper end of the support plate, and the sealing blocks correspond one to one with the second vertical through holes; the inner sides of the middle parts of two left and right symmetrical semi-conical screening nets are respectively hinged to the lower part of the vertical sleeve, and a return spring is connected between the upper part of the semi-conical screening net and the vertical sleeve, and the driving sleeve is arranged on the outside of the two semi-conical screening nets, and the inner sides of the left and right sides of the driving sleeve are set as inclined surfaces, and the inclined surface on the left side is higher on the left and lower on the right, and a vertical support rod is fixedly connected between the driving sleeve and the upper end of the support plate, and the vertical support rod slides along the up and down direction and passes through the second horizontal partition, and the vertical support rod is fixedly connected to the upper end of the support plate.

[0031] Preferably, step 6 is controlled based on an intelligent control system, and the intelligent control system includes:

[0032] A plurality of force sensors are arranged at intervals at the contact portion between the pressure plate and the adjacent filter press assembly, and are used to detect the pressure of the pressure plate on the corresponding filter press assembly;

[0033] A plurality of detection modules, one corresponding to each filter press assembly, the detection modules comprising: a speed sensor for detecting the moving speed of the corresponding filter press assembly; a distance sensor for detecting the distance between the filter press assembly where it is located and the filter press assembly on the side of the filter press assembly close to the driving assembly, wherein distance sensors are provided at the four corners of the filter press assembly;

[0034] A control device and an alarm, wherein the control device is electrically connected to the force sensor, the speed sensor, the distance sensor, and the drive component 1 respectively, and the control device controls the drive component 1 and the alarm based on the force sensor, the speed sensor, and the distance sensor.

[0035] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] By setting up a liquid replenishing mechanism and adding acid-base regulating liquid into the stirring chamber, the pH value of the sludge organic fertilizer is adjusted, which can promote the microbial activity and fertilizer fermentation in the sludge organic fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0039] Figure 1 It is a schematic diagram of the process of the present invention;

[0040] Figure 2 It is a structural schematic diagram of the first preparation device of the present invention;

[0041] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0042] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at B in the middle;

[0043] Figure 5 Schematic diagram of the structure of the filter press assembly of the present invention;

[0044] Figure 6 Schematic diagram of the structure of the second preparation device of the present invention;

[0045] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at C in the middle;

[0046] In the figure: 1. Filter press mechanism; 11. First housing; 12. First horizontal partition; 13. Upper chamber; 14. Lower chamber; 15. Filter press assembly; 151. Frame; 152. Filter plate; 153. First slider; 16. Driving assembly 1; 161. Second slider; 162. Vertical guide rod; 163. Guide block; 164. Support rod; 165. Driving mechanism 1; 166. Press plate; 17. Driving chamber; 2. Crushing mechanism; 21. Second housing; 22. Crushing assembly; 3. Support and discharge mechanism; 31. Mounting seat; 32. Mounting groove; 33. Third slider; 34. Support spring 1; 35. Vertical rod; 36. Lifting drive Device; 4. Filter screen; 5. First vertical bracket; 6. Base; 7. Second preparation device; 71. Third box; 72. Fourth box; 73. Fifth box; 74. Second horizontal partition; 75. First cavity; 76. Second cavity; 77. Stirring assembly; 771. Stirring shaft; 772. Stirring motor; 78. Second pipeline; 79. First pipeline; 81. Vertical sleeve; 82. Second vertical through hole; 83. Support plate; 831. Sealing block; 84. Semi-conical screening screen; 85. Inclined surface; 86. Drive sleeve; 87. Vertical support rod; 881. Cam; 882. Support spring 2; 883. Extension plate; 9. Discharge channel. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0048] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] The present invention provides the following embodiments

[0050] Example 1

[0051] The present invention provides a method for preparing a municipal sludge treatment agent with high efficiency deodorization, such as Figure 1 As shown, including:

[0052] Step 1: Add activated carbon, diatomaceous earth, and ginger extract to the sludge and stir for a reaction for 1-5 minutes;

[0053] Step 2: Add sodium citrate and ferrous sulfate and stir to react for 1 minute;

[0054] Step 3: Add allicin and stir to react for 1-3 minutes;

[0055] Step 4: Add photosynthetic bacteria and Bacillus, stir and react (the stirring reaction can be 1 minute), and let it stand for a first preset time (which can be 90 minutes);

[0056] Step 5: Add cationic flocculant and iron salt and stir to react (the stirring reaction can be carried out for 3-9 minutes); after the reaction is completed, the sludge enters the filter press for filtration for 2-4 hours. The moisture content of the sludge discharged from the plate and frame filter press is 50-60%. The sludge discharged from the filter press is crushed by a crusher. After the sludge is crushed, it is transported to the drying yard for drying. After drying for 24 hours, the moisture content can be quickly reduced to 30%. The odor concentration during the sludge drying process meets the "Emission Standards for Odor Pollutants".

[0057] Preferably, the mass of each component in step 1 is: activated carbon 1%-5%, diatomaceous earth 1%-5%, ginger extract 1‰-5‰;

[0058] The mass of each component in step 2 is: sodium citrate 1%-5%, ferrous sulfate 1%-2%;

[0059] The mass fractions of the components in step 3 are: 0.5%-2.5% of allicin. The above mass fractions can be the ratio of the corresponding components to the mass of the sludge;

[0060] Preferably, the concentration of Bacillus in step 4 is 10-100 ppm, and the concentration of iron salt in step 5 is 10-50 ppm.

[0061] Cationic flocculants and iron salts cause the small-molecule bacterial flocs in the residual sludge to flocculate into large-molecule flocs, quickly breaking the cell walls and releasing cell water. The moisture content of the sludge decreases rapidly during the pressing process. Allicin enhances the activity of fibrinolytic enzymes. Ginger extract (gingerol, zingiberene, bisabolene) inhibits the growth of anaerobic bacteria. Activated carbon and diatomaceous earth (absorb the generated hydrogen sulfide, ammonia nitrogen, methyl mercaptan, and ether-type odorous substances). Photosynthetic bacteria and Bacillus (enhance the oxygen production capacity of the sludge, eliminate the anaerobic state of the sludge, and restore the aerobic state of the sludge). Sodium citrate and ferrous sulfate (mineralize, chelate heavy metals, and eliminate biological toxicity).

[0062] The beneficial effects of the above technical solution are:

[0063] 1. Use diatomaceous earth and activated carbon to absorb the generated ammonia, hydrogen sulfide, methyl mercaptan and ether odor substances;

[0064] 2. Inhibit the growth of anaerobic microorganisms through the (gingerol, zingiberene, bisabolene) in ginger extract and eliminate the source of odor;

[0065] 3. By adding sodium citrate and ferrous sulfate, the heavy metals enriched in the residual sludge are eliminated, the biological toxicity is eliminated, and a suitable living environment is provided for the growth of aerobic microorganisms;

[0066] 4. The addition of allicin can enhance the activity of fibrinolytic enzymes, accelerate the decomposition of macromolecular organic matter in biological sludge, and provide a chemical environment suitable for the growth of aerobic microorganisms in the sludge;

[0067] 5. By adding photosynthetic bacteria and Bacillus, the oxygen production capacity of the sludge is accelerated, the anaerobic state of the sludge is fundamentally eliminated, and the problem of anaerobic sludge odor is completely eliminated.

[0068] 6. Adjust the sludge moisture content to approximately 95%. Add sludge treatment agent to the remaining sludge at 95% moisture content. Dry mix the sludge and treatment agent to complete the sludge mineralization treatment. After treatment, the sludge is directly fed into the plate and frame filter press for filtration. The filtration cycle lasts 2-4 hours. After filtration, the sludge is aired in the drying yard. The moisture content of the plate and frame sludge can be quickly reduced to 20% within 24 hours. Throughout the entire production process, the odor concentration can meet the "Emission Standards for Malodorous Pollutants."

[0069] 7. The materials of the present invention are mostly biological extraction or microbial, which are environmentally friendly materials. They do not contain a large amount of inorganic salt products, will not cause sludge compaction, and will not affect the subsequent treatment process;

[0070] 8. The present invention eliminates odor, modifies excess sludge, improves the chemical environment, and transforms microbial types, all of which work together to completely change the sludge properties and prevent anaerobic odor formation in the sludge.

[0071] 9. The present invention is environmentally friendly and has a long deodorization duration; it has a good detoxification effect on excess sludge containing excessive heavy metals;

[0072] 10. The present invention requires little addition and little investment.

[0073] Example 2, based on Example 1, Figure 2-Figure 5 As shown, steps 6 to 7 are performed based on the first preparation device, which includes a filter press mechanism 1 and a crushing mechanism 2;

[0074] The filter press mechanism 1 includes: a first box body 11, an opening is provided at the upper end of the first box body 11, and the first box body 11 is divided into an upper cavity 13 and a lower cavity 14 by a first horizontal partition 12. A plurality of groups of filter press assemblies 15 arranged horizontally at intervals on the left and right are provided in the upper cavity 13, and the filter press assemblies 15 are slidably connected to the front and rear inner walls of the upper cavity 13; a driving assembly 16 is connected to one side of the plurality of groups of filter press assemblies 15, and the driving assembly 16 is used to drive the filter press assemblies 15 to slide. A plurality of first vertical through holes are horizontally spaced in the first horizontal partition 12, and the first vertical through holes are used to insert the filter screen 4;

[0075] The crushing mechanism 2 includes: a second box body 21, which is fixedly connected to one side of the first box body 11. The first box body 11 and the second box body 21 are both fixedly connected to the upper end of the base 6 through the first vertical bracket 5. A crushing assembly 22 is connected to the second box body 21.

[0076] Preferably, the filter press assembly 15 includes: a frame 151, a filter plate 152 is embedded in the frame 151, and the upper and lower parts of the front and rear sides of the frame 151 are fixedly connected with a first slider 153, and the first slider 153 is slidably connected to the front inner wall or the rear inner wall of the upper cavity 13.

[0077] Preferably, a drive chamber 17 is provided on the left or right side of the first housing 11, and the drive assembly 16 is connected to the drive chamber 17. The drive assembly 16 includes: a vertical guide rod 162, the vertical guide rod 162 is fixedly connected to the upper and lower inner walls of the drive chamber 17, and guide blocks 163 are provided on the upper and lower inner walls of the drive chamber 17 near the filter press assembly 15. The upper and lower ends of the pressure plate are respectively slidably connected to the two guide blocks 163. Two second sliders 161 are slidably sleeved on the vertical guide rod 162. The two second sliders 161 are driven by a drive mechanism 165 to move closer to or away from each other. The pressure plate 166 is slidably connected to a connecting seat on the side near the vertical guide rod 162. Two support rods 164 are cross-arranged, and the two ends of the support rods 164 are respectively hinged to the second slider 161 and the connecting seat. Wherein, when the vertical guide rod is a smooth rod, the drive mechanism 165 can be a hydraulic rod; when the vertical guide rod is a bidirectional threaded rod, the drive mechanism 165 can include a drive motor, and the drive motor drives the vertical guide rod to rotate through a transmission mechanism.

[0078] The working principle and beneficial effects of the above technical solution are as follows: when filter press is required, the sludge to be filtered is injected between adjacent filter press assemblies 15, and the two support rods 164 are driven to move by the driving mechanism, so that the pressure plate pushes the filter press assembly 15 in contact with it to move toward the filter press plate, so that the distance between each filter press assembly 15 is shortened, so that the sludge between adjacent filter press assemblies 15 is filtered, and the filtrate obtained by the filtration enters the lower cavity 14; the setting of the first slider 153 makes the movement of the frame 151 and the filter plate 152 stable.

[0079] Example 3, based on Example 2, Figure 3-Figure 5 As shown, the first preparation device also includes a support and discharge mechanism 3, which includes: a mounting seat 31, a plurality of mounting grooves 32 are horizontally spaced on the mounting seat 31, the side of the mounting seat 31 away from the second box body 21 is hinged to the first horizontal partition 12, the mounting grooves 32 correspond one-to-one to the first vertical through holes, the filter screen 4 is slidably connected in the mounting groove 32 by an elastic connection mechanism, the upper end of the vertical rod 35 is in contact with the side of the lower end of the mounting seat 31 close to the second box body 21, the lower end of the vertical rod 35 is fixedly connected to the lifting end of the lifting drive device 36, and the fixed end of the lifting drive device 36 is fixedly connected to the upper end of the base 6; the second box body and the lower cavity are connected through the discharge channel 9;

[0080] The elastic connection mechanism includes: a plurality of connection structures arranged at intervals along the periphery of the filter screen 4; the connection structures include: a third slider 33, the third slider 33 being integrally fixedly mounted on the side wall of the filter screen 4; a vertical slide groove being provided inside the mounting groove 32; the third slider 33 being slidably connected within the vertical slide groove; a support spring 1 34 being fixedly connected between the third slider 33 and the inner wall of the lower end of the mounting groove 32; a second drive mechanism for driving the third slider 33 to slide downward within the mounting groove 32. The second drive mechanism may include: an electromagnet and a permanent magnet, the permanent magnet and the electromagnet being connected to the upper end of the third slider and the upper end of the vertical slide groove, respectively;

[0081] The working principle and beneficial effects of the above technical solution are:

[0082] 1. When filtering, if Figure 6 As shown, the filter screen 4 is located in the first vertical through hole, which is convenient for filtration. The above technical solution can realize the control of the filter screen 4 being located in the first vertical through hole during filtration to ensure the filtration effect and the lifting drive device 36 and the vertical guide rod 162 to reliably support the filter screen 4;

[0083] 2. When the filtration is completed, the electromagnet is first controlled to be energized so that the electromagnet and the permanent magnet repel each other, thereby causing the filter screen 4 to move downward until it is completely accommodated in the mounting groove 32. Then, the lifting drive device 36 is controlled to work so that the support plate 83 rotates counterclockwise under the action of its gravity, so that the sludge blocks on the mounting seat 31 enter the second box body 21 through the discharge channel 9 for automatic crushing. After the filtration is completed, on the one hand, the filter screen 4 is accommodated in the mounting groove 32, and on the other hand, the mounting seat 31 is tilted so that the sludge blocks are automatically discharged into the discharge channel. When the mounting seat 31 is tilted, the filter screen 4 is accommodated in the mounting groove 32 without affecting the discharge of the sludge blocks.

[0084] Example 4, based on any one of Examples 1-3, Figure 6-7 As shown, steps 1 to 5 are performed based on a second preparation device 7, and the second preparation device 7 includes:

[0085] A third box 71 is fixedly connected to a fourth box 72 at its upper end, and a fifth box 73 is fixedly connected to its upper end via a third vertical bracket. The interior of the fourth box 72 is divided from top to bottom into a first cavity 75 and a second cavity 76 by a second horizontal partition 74. A stirring assembly 77 is connected to the third box 71. The first cavity 75 is in communication with the third box 71 via a second pipe 78, and a second electric valve is connected to the second pipe 78.

[0086] Several groups of multifunctional sludge treatment components are arranged horizontally at intervals, and the multifunctional sludge treatment components are connected to the first cavity 75 and the second cavity 76. Each multifunctional sludge treatment component is connected to the fifth box 73 through a first pipe 79, and the first pipe 79 is connected to a first electric valve.

[0087] Preferably, the multifunctional sludge treatment assembly includes: a vertical sleeve 81, the vertical sleeve 81 passes through the upper end of the fourth box body 72, each vertical sleeve 81 is connected to the fifth box body 73 through the first pipe 79, a second vertical through hole 82 is provided on the second horizontal partition 74 directly below each vertical sleeve 81, the support plate 83 is driven by the driving assembly 2 to slide in the second cavity 76 along the up and down direction, and a plurality of sealing blocks 831 are provided on the upper end of the support plate 83, and the sealing blocks 831 correspond one to one with the second vertical through holes 82; two The inner sides of the middle parts of the left-right symmetrical semi-conical screening nets 84 are hinged to the lower parts of the vertical sleeves 81 respectively. A return spring is connected between the upper part of the semi-conical screening nets 84 and the vertical sleeves 81. The driving sleeve 86 is sleeved on the outside of the two semi-conical screening nets 84. The inner sides of the left and right sides of the driving sleeve 86 are set as inclined surfaces 85. The inclined surface 85 on the left is higher on the left and lower on the right. A vertical support rod 87 is fixedly connected between the driving sleeve 86 and the upper end of the support plate 83. The vertical support rod 87 slides in the up and down direction to pass through the second horizontal partition 74. The vertical support rod 87 is fixedly connected to the upper end of the support plate 83.

[0088] The third box body 71 is fixedly connected to the upper end of the base 6 through a second vertical bracket. The stirring assembly 77 includes: a stirring shaft 771, which is rotatably connected to the left and right side walls of the third box body 71. A stirring blade is provided on the stirring shaft 771. The stirring shaft 771 is driven by a stirring motor 772, and the stirring motor 772 is connected to the side wall of the third box body 71 through a support frame.

[0089] Among them, the driving component 2 can be an electric telescopic rod, the telescopic end of the upper end of the electric telescopic rod is fixedly connected to the lower end of the support plate 83, and the lower end of the electric telescopic rod is fixedly connected to the upper end of the third box body 71; or the driving component 2 includes: a support spring 2 882, the upper end of the support spring 2 882 is fixedly connected to the lower end of the support plate 83, the lower end of the support spring 2 882 is fixedly connected to the upper end of the third box body 71 and the fourth box body 72 (wherein the fourth box body 72 is provided with a connecting hole for the support plate 83 to pass through, and the lower end of the support spring 2 882 is fixedly connected to the lower end of the connecting hole), an extension plate 883 is fixedly provided on the left and right sides of the lower end of the support plate 83, the left and right ends of the stirring shaft 771 pass through the left and right sides of the third box body 71, and the left and right ends of the stirring shaft 771 are fixedly connected to cams 881, and the cams 881 are used to drive the extension plate 883 to move upward.

[0090] The working principle and beneficial effects of the above technical solution are:

[0091] 1. The sludge to be dusted is stored in the fifth box 73. When the sludge needs to be deodorized, the first electric valve is controlled to open the first pipe 79 so that the sludge enters the vertical sleeve 81 through the corresponding first pipe 79. Figure 6-7 As shown, under the action of the second driving component and the second supporting spring 882, the sealing block 831 is sealed in the second vertical through hole 82, and the inclined surface 85 of the driving sleeve 86 closes the lower ends of the left and right semi-conical screening nets 84. The sludge passing through the vertical sleeve 81 passes through the semi-conical screening nets 84 to remove impurities. The sludge passing through the semi-conical screening nets 84 flows into the first cavity 75 and can enter the third box 71 through the second pipe 78. The sealing block 831 is sealed in the second vertical through hole 82 to prevent the sludge from entering the second cavity 76. Then, activated carbon, diatomaceous earth, ginger extract, sodium citrate, ferrous sulfate, allicin, photosynthetic bacteria, Bacillus, cationic flocculant, and iron salt are added to the third box 71 to perform the above steps 1 to 5 to achieve deodorization of the sludge; by removing impurities (especially large particles) in the sludge, it is avoided to affect the subsequent treatment of the sludge;

[0092] 2. When there are a lot of impurities in the semi-conical screening net 84, the second driving component is controlled to work, so that the support plate 83 moves downward, on the one hand, the sealing block 831 opens the second vertical through hole 82, and on the other hand, the driving sleeve 86 moves downward, so that the semi-conical screening net 84 opens the lower ends of the two semi-conical screening nets 84 under the elastic force of the return spring, so that the impurities in the two semi-conical screening nets 84 fall into the lower cavity 14 through the second vertical through hole 82 for storage, thereby realizing automatic removal of impurities; and the second driving component can be controlled to periodically drive the support net to move up and down a certain distance, so that under the action of the return spring, the semi-conical screening net 84 swings, which is convenient for removing impurities;

[0093] 3. The above technical solution can realize the closing and opening of the second vertical through hole 82 and the closing and opening and the above-mentioned swing of the lower ends of the two semi-conical screening nets 84 through a second driving component, which is easy to control.

[0094] Example 5, based on any one of Examples 1-4, step 6 is controlled by an intelligent control system, and the intelligent control system includes:

[0095] A plurality of force sensors are arranged at intervals at the contact portion between the pressure plate 166 and the adjacent filter press assembly 15 , for detecting the pressure of the pressure plate 166 on the corresponding filter press assembly 15 ;

[0096] Several detection modules, one corresponding to each filter press assembly 15, the detection modules including: a speed sensor for detecting the moving speed of the corresponding filter press assembly 15; a distance sensor for detecting the distance between the filter press assembly 15 where it is located and the filter press assembly 15 on the side of the filter press assembly 15 close to the drive assembly 16, wherein the distance sensors are provided at the four corners of the filter press assembly 15;

[0097] A control device and an alarm, wherein the control device is electrically connected to the force sensor, the speed sensor, the distance sensor, and the drive component 16 respectively. The control device controls the drive component 16 and the alarm based on the force sensor, the speed sensor, and the distance sensor, including:

[0098] Before each batch filtration, pre-filtration is performed. In the pre-filtration, a certain amount of sludge is placed in each compression area to determine the current sludge filtration state coefficient. Adjacent filter press components 15 are a compression area, and the actual sludge filtration state coefficient is determined based on the results of the pre-filtration.

[0099]

[0100] Wherein, A is the actual filter pressing state coefficient of the sludge, F0 is the pressure of the pressure plate 166 on the filter press assembly 15 during pre-filtering (unit: Pa), obtained based on the force sensor; τ is the viscosity of the sludge (unit: Pa*S), V0 is the total volume of sludge blocks in all compression areas after pre-filtering, V1 is the total volume of sludge placed in all compression areas during pre-filtering; μ is the sludge specific resistance (m / kg); Indicates end, B2 is the total volume of filtrate collected after passing through all the filter screens during the pre-filtering process, B1 is the total volume of filtrate collected after passing through all the filter screens 4 during a certain period of time after the start of pre-filtering (which may be one-third of the total filter time), H is the total number of compression zones, F1 is the unit pressure (in Pa), T is the filtration time of the compression zone, and V2 is the unit volume.

[0101] After pre-filtering and before batch filtration, a first state coefficient is calculated based on the distance sensor. When the first state coefficient is greater than a corresponding preset reference value, the control device controls the alarm to sound an alarm.

[0102]

[0103] Where M is the number of filter press assemblies, N is the number of distance sensors in each filter press assembly, and A ij A is the detection value of the jth distance sensor of the i-th filter press assembly after pre-filtration and before batch filtration; ij0 A ijThe corresponding preset maximum allowable value, A ij1 For |A ij -A ij0 |The corresponding maximum allowed value, ln is the natural logarithm, is the average value of all distance sensor detection values ​​of the ith filter press component after pre-filtration and before batch filtration; θ i is the average value of the detection value of the speed sensor corresponding to the i-th filter press component during the pre-filtering process; θ i0 is θ i Corresponding reference value; θ i1 is |θ i -θ i0 |The corresponding maximum allowed value; ln is the natural logarithm;

[0104] The target pressure is determined based on the sludge filtration state coefficient and the first state coefficient, and the control device controls the driving mechanism 165 to operate so that the pressure of the pressure plate 166 on the filter press assembly 15 is within a preset range of the target pressure;

[0105]

[0106] B0 is the target filtrate discharge of sludge in a single compression zone.

[0107] The beneficial effects of the above technical solution are: intelligent detection of the filter press mechanism, specifically: the force sensor is used to detect the pressure of the pressure plate on the corresponding filter press assembly, each filter press assembly is provided with a detection module to detect: the distance between the filter press assembly and the filter press assembly on the side of the filter press assembly close to the drive assembly 1, and the moving speed of the filter press assembly; the control device controls the operation of the drive assembly 1 and the alarm based on the force sensor, speed sensor, and distance sensor, specifically:

[0108] Before each batch filtration, pre-filtration is carried out. A certain amount of sludge is placed in each compression area in the pre-filtration to determine the current sludge filtration state coefficient. The adjacent filter press components are a compression area, and the actual sludge filtration state coefficient is determined based on the results of the pre-filtration. The actual comprehensive filtration state corresponding to the current pressure (F0), sludge state and the filtration effect of the filter press components and filter screen is obtained. Finally, the filter press state coefficient is obtained;

[0109] Then, after pre-filtering and before batch filtration, the first state coefficient is calculated based on the distance sensor. When the first state coefficient is greater than the corresponding preset reference value, the control device controls the alarm to sound an alarm; the position offset state of each filter press component before batch filtration is obtained. and motion state offset state ( (The actual movement speed may change due to the contact surface or the filter press component itself). When the position offset state and movement state offset state of each filter press component are abnormal, an alarm will be issued and timely adjustments will be made to avoid affecting the filter press speed and quality.

[0110] When the position of each filter press component is offset and the motion state offset state is normal, and then the target pressure is determined based on the sludge filtration state coefficient and the first state coefficient. The control device controls the driving mechanism to work so that the pressure of the pressure plate on the filter press assembly is within the preset range of the target pressure; the filter press force is adjusted to ensure the required filtration effect, and the pressure is adapted to the position offset state of the filter press assembly.

[0111] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for treating municipal sludge with high efficiency deodorization, characterized in that: include: Step 1: Add activated carbon, diatomaceous earth and ginger extract to the sludge and stir to react; Step 2: Add sodium citrate and ferrous sulfate and stir to react; Step 3: Add allicin and stir to react; Step 4: Add photosynthetic bacteria and Bacillus, stir to react, and then let it stand for a first preset time; Step 5: Add cationic flocculant and iron salt and stir to react; Step 6: After the reaction in step 5 is completed, the sludge enters the filter press mechanism (1) for filter pressing; Step 7: The sludge discharged from the filter press is crushed by the crushing mechanism, and then transported to the drying yard for drying; Steps 6 and 7 are performed based on a first preparation device, which includes a filter press mechanism and a crushing mechanism; The filter press mechanism comprises: a first housing, an opening being provided at an upper end of the first housing, the first housing being divided into an upper cavity and a lower cavity by a first horizontal partition, a plurality of groups of filter press assemblies being arranged horizontally at intervals on the left and right sides of the upper cavity, the filter press assemblies being slidably connected to the front and rear inner walls of the upper cavity; a first drive assembly being connected to one side of the plurality of groups of filter press assemblies, the first drive assembly being used to drive the filter press assemblies to slide, a plurality of first vertical through holes being horizontally spaced apart in the first horizontal partition, the first vertical through holes being used to insert filter screens; The crushing mechanism includes: a second box body, the second box body is fixedly connected to one side of the first box body, the first box body and the second box body are both fixedly connected to the upper end of the base through a first vertical bracket, and a crushing assembly is connected to the second box body; The first preparation device also includes a support and discharge mechanism, which includes: a mounting seat, a plurality of mounting grooves are horizontally spaced apart on the mounting seat, a side of the mounting seat away from the second box body is hinged to the first horizontal partition, the mounting grooves correspond one-to-one to the first vertical through holes, the filter screen is slidably connected in the mounting groove by an elastic connection mechanism, the upper end of the vertical rod is in contact with a side of the lower end of the mounting seat close to the second box body, the lower end of the vertical rod is fixedly connected to the lifting end of the lifting drive device, and the fixed end of the lifting drive device is fixedly connected to the upper end of the base; the second box body and the lower cavity are connected through a discharge channel; The elastic connection mechanism includes: several groups of connection structures, which are arranged at intervals along the circumference of the filter screen, and the connection structure includes: a third slider, which is fixedly arranged on the side wall of the filter screen, and a vertical slide groove is arranged on the inner side of the installation groove. The third slider is slidably connected in the vertical slide groove, and a support spring 1 is fixedly connected between the third slider and the inner wall of the lower end of the installation groove; a driving mechanism 2 is used to drive the third slider to slide downward in the installation groove.

2. The method for treating municipal sludge with high efficiency deodorization according to claim 1, characterized in that: The mass of the components in step 1 is: activated carbon 1%-5%, diatomaceous earth 1%-5%, ginger extract 1‰-5‰; The mass of each component in step 2 is: sodium citrate 1%-5%, ferrous sulfate 1%-2%; The mass of each component in step 3 is: allicin 0.5%-2.5%.

3. The method for treating municipal sludge with high efficiency deodorization according to claim 1, characterized in that: The concentration of Bacillus in step 4 is 10-100 ppm, and the concentration of iron salt in step 5 is 10-50 ppm.

4. The method for treating municipal sludge with high efficiency deodorization according to claim 1, characterized in that: A driving chamber is set on the left or right side of the first box body, and the driving component is connected to the driving chamber. The driving component includes: a vertical guide rod, which is fixedly connected to the upper and lower inner walls of the driving chamber, and guide blocks are set on the upper and lower inner walls of the driving chamber close to the filter press assembly. The upper and lower ends of the pressure plate are respectively slidably connected to the two guide blocks, and two second sliders are slidably sleeved on the vertical guide rod. The two second sliders are driven by the driving mechanism to approach or move away from each other. The side of the pressure plate close to the vertical guide rod is slidably connected to a connecting seat, and the two support rods are cross-arranged, and the two ends of the support rod are respectively hinged to the second slider and the connecting seat.

5. The method for treating municipal sludge with high efficiency deodorization according to claim 1, characterized in that: Steps 1 to 5 are performed based on a second preparation device, which includes: a third box, the upper end of the third box being fixedly connected to the fourth box, the upper end of the fourth box being fixedly connected to the fifth box via a third vertical bracket, the fourth box being divided from top to bottom into a first cavity and a second cavity by a second horizontal partition, the third box being connected to a stirring assembly, the first cavity being connected to the third box via a second pipe, and the second pipe being connected to a second electric valve; A plurality of groups of multifunctional sludge treatment components are arranged horizontally at intervals, and the multifunctional sludge treatment components are connected to the first cavity and the second cavity. Each multifunctional sludge treatment component is connected to the fifth box through a first pipe, and the first pipe is connected to a first electric valve.

6. The method for treating municipal sludge with high efficiency deodorization according to claim 5, characterized in that: The multifunctional sludge treatment component includes: a vertical sleeve, the vertical sleeve passes through the upper end of the fourth box body, each vertical sleeve is connected to the fifth box body through the first pipe, and a second vertical through hole is provided on the second horizontal partition directly below each vertical sleeve, and the support plate is driven by the driving component 2 to slide in the second cavity along the up and down direction, and a plurality of sealing blocks are provided on the upper end of the support plate, and the sealing blocks correspond one to one with the second vertical through holes; the inner sides of the middle parts of two left and right symmetrical semi-conical screening nets are respectively hinged to the lower part of the vertical sleeve, and a return spring is connected between the upper part of the semi-conical screening net and the vertical sleeve, and the driving sleeve is arranged on the outside of the two semi-conical screening nets, and the inner sides of the left and right sides of the driving sleeve are set as inclined surfaces, and the inclined surface on the left side is higher on the left and lower on the right, and a vertical support rod is fixedly connected between the driving sleeve and the upper end of the support plate, and the vertical support rod slides along the up and down direction and passes through the second horizontal partition, and the vertical support rod is fixedly connected to the upper end of the support plate.

7. The method for treating municipal sludge with high efficiency deodorization according to claim 1, characterized in that: Step 6 is controlled based on an intelligent control system, which includes: A plurality of force sensors are arranged at intervals at the contact portion between the pressure plate and the adjacent filter press assembly, and are used to detect the pressure of the pressure plate on the corresponding filter press assembly; A plurality of detection modules, one corresponding to each filter press assembly, the detection modules comprising: a speed sensor for detecting the moving speed of the corresponding filter press assembly; a distance sensor for detecting the distance between the filter press assembly where it is located and the filter press assembly on the side of the filter press assembly close to the driving assembly, wherein distance sensors are provided at the four corners of the filter press assembly; A control device and an alarm, wherein the control device is electrically connected to the force sensor, the speed sensor, the distance sensor, and the drive component 1 respectively, and the control device controls the drive component 1 and the alarm based on the force sensor, the speed sensor, and the distance sensor.

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