A fermentation device for sludge resource treatment

Abstract

The present invention belongs to the field of fermentation technology for sludge resource treatment, and in particular relates to a fermentation device for sludge resource treatment, comprising a fermentation bin, a collecting bin connected to the bottom of the fermentation bin, and used for collecting leachate produced by fermentation sludge in the fermentation bin, and the collecting bin is connected to a sewage discharge bin for discharging leachate and sludge; a filter plate is arranged at a bin port connected to the collecting bin and the fermentation bin, and is used for separating fermentation sludge and leachate; a scraping mechanism moves linearly in the collecting bin to scrape the collected leachate from the collecting bin; an expansion sealing mechanism is arranged on the collecting bin, and when the spiral blade turns over the sludge in the fermentation bin, the expansion sealing mechanism expands and adheres to the lower surface of the filter plate during the driving of the scraping mechanism; the present invention can prevent a large amount of sludge particles from falling into the collecting bin when the fermentation sludge is turned over, thereby causing unnecessary waste.

Description

Technical Field

[0001] The invention belongs to the technical field of fermentation for sludge resource treatment, and in particular relates to a fermentation device for sludge resource treatment. Background Art

[0002] Sludge fermentation is an important technology for treating sludge and realizing resource utilization. It decomposes and transforms organic matter in sludge through the action of microorganisms, reduces sludge volume and produces valuable products.

[0003] However, since the sludge to be fermented, especially the sludge to be fermented aerobically, has a high moisture content (>65%), leachate (accounting for about 10%-20% of the sludge volume) will be produced during fermentation. If the leachate is not discharged from the sludge fermentation equipment in time, it is easy for the fermented sludge to be discharged from the fermentation equipment, and the leachate will be discharged simultaneously with the fermented sludge, which may easily cause pollution risks to the surrounding environment.

[0004] In the existing sludge fermentation equipment, when treating the leachate generated in the fermented sludge, most of them set up a simple collection tank and simply install a percolation plate in the fermentation equipment to collect the leachate, and then discharge it through a collection pipe. Obviously, this design can only collect and discharge the generated leachate. Since the aerobically fermented sludge needs to be continuously turned over in the sludge fermentation equipment, and the percolation plate has a certain mesh, when the fermented sludge is turned over, some sludge particles will inevitably fall into the collection area below, which will not only cause blockage of the collection pipe, but also make it difficult to quickly collect and treat the fallen sludge, which will affect the rapid and accurate collection and treatment of the leachate generated during the sludge fermentation. Summary of the Invention

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a fermentation device for sludge resource processing, comprising a fermentation chamber, a feed hopper connected to the fermentation chamber, a spiral blade arranged in the fermentation chamber for conveying and turning the sludge, an aeration unit connected to the fermentation chamber, and a power unit located outside the fermentation chamber for driving the spiral blade to rotate, and further comprising:

[0007] A collecting tank is connected to the bottom of the fermentation tank and is used to collect the leachate produced by the fermentation sludge in the fermentation tank. The collecting tank is connected to a sewage discharge tank for discharging the leachate and sludge.

[0008] The filter plate is arranged at the port connecting the collecting chamber and the fermentation chamber, and is used to separate the fermentation sludge and leachate;

[0009] A scraping mechanism moves linearly in the collecting chamber to scrape the collected leaked liquid from the collecting chamber;

[0010] and an expansion sealing mechanism, wherein the expansion sealing mechanism is arranged on the collection bin, and when the spiral blade turns over the sludge in the fermentation bin, the expansion sealing mechanism is driven by the scraping mechanism to expand and adhere to the lower surface of the filter plate.

[0011] As a preferred embodiment of the present invention, the scraping mechanism includes:

[0012] A ball screw is rotatably mounted on the walls of the collection bin and the sewage discharge bin, and one end of the ball screw is connected to the output shaft of the drive motor fixed on the sewage discharge bin;

[0013] The ball nut is sleeved on the ball screw and a connecting ring is installed on the ball nut;

[0014] and a scraper member, the scraper member being movably disposed in the collection bin to scrape the leachate and sludge collected in the collection bin to the sewage discharge bin;

[0015] The scraper piece is sleeved on the connecting ring, and the scraper piece and the connecting ring are transmission-connected to each other via a connecting and separating assembly.

[0016] As a preferred embodiment of the present invention, the expansion sealing mechanism includes:

[0017] Support frames are symmetrically placed on the side wall of the collection bin away from the sewage discharge bin, and two of the support frames are provided with rotating winding drums;

[0018] A long through groove is provided on the side wall of the collection bin away from the sewage discharge bin;

[0019] The supporting long grooves are symmetrically opened on the inner walls of both sides of the collecting bin along the length direction of the collecting bin, and the supporting long grooves are connected to the through long grooves, and the slot width of the supporting long grooves is greater than the slot width of the through long grooves;

[0020] An air bag is wound on the winding drum, and a free end of the air bag passes through the long slot and is connected to the scraper member;

[0021] The expansion strips are placed on both side walls of the airbag and are synchronously wound onto the reel following the airbag, and the free ends of the expansion strips pass through the through long slots and slide into the supporting long slots;

[0022] and a soft air pipe, wherein the soft air pipe is arranged on the side wall of the scraper member, and one end of the pipe opening is connected to the end of the air bag close to the scraper member, and the other end of the pipe opening extends out of the collection bin and is connected to the air pump component that provides the air source.

[0023] As a preferred solution of the present invention, a movable spiral conveying component is provided in the sewage discharge bin, and the spiral conveying component includes:

[0024] A shaft tube is sleeved on the ball screw located in the sewage discharge bin, and a key groove is provided on the inner wall of the shaft tube along its length direction;

[0025] A blocking block is detachably placed at the open end of the keyway to seal the keyway;

[0026] The key block is fixed on the ball screw located inside the shaft tube, and the key block and the key slot cooperate with each other;

[0027] A spiral sheet and a connecting plate, wherein the spiral sheet is sleeved on the shaft tube, and the connecting plate is arranged at the end of the shaft tube close to the direction of connecting and separating components;

[0028] The connecting plate is detachably connected to the connecting and separating assembly. When the connecting plate is connected to the connecting and separating assembly, the scraper member slides in the collecting bin and drives the spiral blade from the sewage discharge bin into the collecting bin.

[0029] As a preferred solution of the present invention, the connection and separation component includes:

[0030] Semicircular slots are arranged in a circumferential array at the locations where the connecting ring and the scraper member are connected to each other;

[0031] The limiting rod is movably placed in the semicircular slot, and the limiting rod is provided with a notch corresponding to the semicircular slot on the connecting ring;

[0032] The first elastic element is sleeved on the limiting rod, and one end of the first elastic element contacts the scraper member, and the other end of the first elastic element is connected to the contact ring provided at the end of the limiting rod;

[0033] A limiting ring is sleeved on the limiting rod and contacts the other side surface of the scraper member;

[0034] The electromagnetic suction block is placed at the end of the limiting rod away from the interference ring through an insulating pad;

[0035] An insulating ring and a metal ring, wherein the insulating ring is movably mounted on the side of the connecting disk close to the scraper member, and a metal ring is provided on the insulating ring to cooperate with the electromagnetic suction block.

[0036] As a preferred solution of the present invention, the connection and separation assembly further includes a limiting plate, and a plurality of the limiting plates are respectively mounted on the scraper member by bolts, and the limiting plates are in contact with the outer side surface of the connection ring.

[0037] As a preferred solution of the present invention, a mobile sewage discharge assembly is provided near the sewage discharge bin on the filter plate, and the mobile sewage discharge assembly includes:

[0038] The sewage outlet is opened through the filter plate near the sewage discharge bin, and the two side walls of the sewage outlet are respectively provided with a receiving cavity and a supporting cavity;

[0039] A movable mesh plate is movable through the support cavity and inserted into the sewage outlet, and the movable mesh plate extends into the receiving cavity;

[0040] Push strips, two push strips are placed on the outer side of the movable mesh plate, and the outer ends of the two push strips are movable through the collection bin and extend into the sewage discharge bin;

[0041] and a push plate, wherein the push plate is sleeved on the end of the shaft tube away from the connecting disk through a bearing member, and the push plate is detachably connected to the push strip.

[0042] As a preferred solution of the present invention, the bottom of the sewage discharge bin is open, and a sealing plate and a screen are slidably connected to the bottom of the bin through a support member.

[0043] The above solution of the present invention includes at least the following beneficial effects:

[0044] This solution cleverly arranges an expansion sealing mechanism and a scraping mechanism in the collection bin and below the filter plate. The expansion sealing mechanism can generate an expansion seal on the lower surface of the filter plate under the drive of the scraping mechanism, thereby sealing the filter plate. The movement of the scraping mechanism can scrape and discharge the falling leachate, preventing the fermented sludge in the fermentation bin from falling into the collection bin when the material is turned over, thereby preventing a large amount of sludge particles from falling into the collection bin and causing unnecessary waste. After the expansion sealing mechanism is detached from the lower surface of the filter plate, the filter plate can separate the fermented sludge and the generated leachate, allowing the leachate to fall into the collection bin for rapid collection and treatment.

[0045] This solution cleverly sets a sliding shaft tube and spiral blade on the ball screw. When the spiral blade is located in the sewage discharge bin, the rotating spiral blade can stir the sludge particles intercepted by the screen to prevent the mesh of the screen from being blocked. When the separation component is connected to the connecting disk, the movement of the scraper can pull the spiral blade into the collection bin. At this time, the rotation of the spiral blade can automatically transport and discharge the fermented sludge that falls into the collection bin. Therefore, there is no need to open a separate sewage outlet on the fermentation bin to discharge the fermented sludge. The fermented sludge can be quickly discharged from the fermentation bin through the cooperation of the collection bin and the sewage discharge bin.

[0046] This solution cleverly connects the movable mesh plate with the shaft tube through a sliding strip and a sliding plate, so that the movable mesh plate can follow the synchronous movement of the spiral blade to open the sewage outlet, and the size of the sewage outlet opening is similar to the size of the spiral blade entering the collection bin, which makes it easier for the rotating spiral blade to accurately and quickly transport and discharge the falling fermented sludge. The cooperation of the sliding plate and the scraper can block other positions of the sewage bin and the collection bin, preventing the fermented sludge from entering the collection bin or other positions of the sewage bin, which requires secondary cleaning.

[0047] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 This is a schematic diagram of the three-dimensional structure of the fermentation device disclosed in the present invention;

[0050] Figure 2 This is a schematic diagram of the explosion of the fermentation bin disclosed in the present invention;

[0051] Figure 3 This is a schematic diagram of the matching structure of the collection bin and the filter plate disclosed in the present invention;

[0052] Figure 4 This is a schematic diagram of the internal structure of the collection bin and sewage discharge bin disclosed in the present invention;

[0053] Figure 5 This is a schematic structural diagram of the airbag disclosed in the present invention being deployed in a collection bin;

[0054] Figure 6 An exploded schematic diagram of the scraper member and the connection and separation assembly disclosed in the present invention;

[0055] Figure 7 This is a diagram showing the matching state of the shaft tube and the push plate disclosed in the present invention;

[0056] Figure 8 It is a cross-sectional view of the shaft tube disclosed in the present invention.

[0057] In the picture:

[0058] 1. Fermentation chamber; 101. Feed hopper; 102. Spiral blade; 103. Aeration unit;

[0059] 2. Collection chamber; 21. Through-long slot; 22. Supporting long slot;

[0060] 3. Sewage discharge bin; 31. Support member; 32. Sealing plate; 33. Screen;

[0061] 4. Filter plate;

[0062] 5. Scraping mechanism; 51. Ball screw; 52. Ball nut; 53. Connecting ring; 54. Scraper; 55. Semicircular slot;

[0063] 6. Expansion sealing mechanism; 61. Support frame; 62. Winding drum; 63. Air bag; 64. Expansion strip; 65. Soft air tube;

[0064] 7. Screw conveying component; 71. Shaft tube; 72. Keyway; 73. Block; 74. Key block; 75. Screw piece; 76. Connecting plate;

[0065] 8. Connecting and separating assembly; 81. Limiting rod; 811. Long notch; 82. First elastic element; 83. Interference ring; 84. Limiting ring; 85. Electromagnetic suction block; 86. Insulating ring; 87. Metal ring; 88. Limiting piece;

[0066] 9. Mobile sewage discharge assembly; 91. Sewage outlet; 92. Storage cavity; 93. Support cavity; 94. Movable mesh plate; 95. Push strip; 96. Push plate. DETAILED DESCRIPTION

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0068] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0069] See also Figures 1-8 As shown, the present invention is a fermentation device for sludge resource processing, comprising a fermentation chamber 1, a feed hopper 101 connected to the fermentation chamber 1, a spiral blade 102 disposed in the fermentation chamber 1 for conveying and turning the sludge, an aeration unit 103 connected to the fermentation chamber 1, and a power unit located outside the fermentation chamber 1 for driving the spiral blade 102 to rotate, and further comprising:

[0070] The collecting chamber 2 is connected to the bottom of the fermentation chamber 1 and is used to collect the leachate produced by the fermentation sludge in the fermentation chamber 1. The collecting chamber 2 is connected to a sewage discharge chamber 3 for discharging the leachate and sludge.

[0071] The filter plate 4 is provided at the port where the collecting chamber 2 communicates with the fermentation chamber 1 and is used to separate the fermentation sludge and the leachate;

[0072] A scraping mechanism 5 moves linearly in the collecting chamber 2 to scrape the collected leakage liquid from the collecting chamber 2;

[0073] and an expansion sealing mechanism 6, the expansion sealing mechanism 6 being provided on the collecting bin 2, and when the spiral blade 102 stirs the sludge in the fermentation bin 1, the expansion sealing mechanism 6 is driven by the scraping mechanism 5, and the expansion sealing mechanism 6 expands and adheres to the lower surface of the filter plate 4;

[0074] It should be noted that the fermentation bin 1 is suspended by a base body, and the aeration unit 103 is composed of an aeration main pipe and a nozzle arranged above the fermentation bin 1, and the power unit is preferably a drive motor connected to the shaft through a coupling (not shown in the figure), and the collecting bin 2 can be fixed to the bottom of the fermentation bin 1 by welding, and the spiral blades 102 can be installed in the space below the fermentation bin 1 and the feed hopper 101 in an integral manner, or in a segmented manner. If the spiral blades 102 are segmented, the sizes of the two sections of the spiral blades 102 can be designed according to the internal space of the fermentation bin 1 and the size of the space below the feed hopper 101, so that the sludge put into the feed hopper 101 can be transported to the fermentation bin 1, or the sludge fermented in the fermentation bin 1 can be transported to the tail of the fermentation bin 1;

[0075] In a preferred embodiment of this scheme, the sludge to be fermented is fed into the fermentation bin 1 through a feed hopper 101 located on the right side of the fermentation bin 1, and the spiral blade 102 is rotatably installed in the fermentation bin 1 through the cooperation of a shaft and a bearing, so that the spiral blade 102 rotates in the fermentation bin 1 to transport the fed sludge into the fermentation bin 1. In addition, the spiral blade 102 can turn over the fermented sludge in the fermentation bin 1 in the forward and reverse rotation states. The aeration unit 103 can supply oxygen and the like to the fermentation bin 1, so that the sludge can be fully fermented in the fermentation bin 1.

[0076] When the sludge is continuously transported and turned over in the fermentation bin 1, the scraping mechanism 5 works to pull the expansion sealing mechanism 6 and spread it flat under the filter plate 4, and then inflate the parts of the expansion sealing mechanism 6 to expand and fit the lower surface of the filter plate 4, so as to achieve a sealing treatment on the mesh holes on the filter plate 4, thereby preventing a large number of fine sludge particles from passing through the mesh holes of the filter plate 4 and falling into the collection bin 2 during the sludge transportation and turning, and then the fallen sludge particles need to be cleaned up;

[0077] When the sludge is in a static fermentation state in the fermentation bin 1, the expansion sealing mechanism 6 will discharge the gas charged and slowly withdraw it from the lower surface of the filter plate 4, and the scraping mechanism 5 will slowly move in the reverse direction, so that the mesh of the filter plate 4 is in an open state, so that the leachate generated on the upper surface of the filter plate 4 falls through the mesh to the collection bin 2 for collection, and when the scraping mechanism 5 pulls the expansion sealing mechanism 6 again to spread it flat in the collection bin 2, the movement of the scraping mechanism 5 will scrape the leachate falling into the collection bin 2 to the sewage discharge bin 3, and then pass through the The sludge particles are discharged through the drain outlet 91 at the bottom of the drain bin 3. Even when the expansion sealing mechanism 6 is separated from the lower surface of the filter plate 4, some sludge particles fall into the collection bin 2. At this time, the movable scraping mechanism 5 can also scrape the fallen sludge particles to the drain bin 3. At this time, a screen 33 can be installed at the bottom of the drain bin 3 as needed to separate and discharge the mixed leachate and sludge particles, thereby facilitating the rapid and independent discharge and collection of the leachate generated by the fermentation sludge in the fermentation bin 1 without causing unnecessary pollution risks.

[0078] This solution cleverly arranges an expansion sealing mechanism 6 and a scraping mechanism 5 in the collecting bin 2 and below the filter plate 4. The expansion sealing mechanism 6 can generate an expansion seal on the lower surface of the filter plate 4 under the drive of the scraping mechanism 5, thereby sealing the filter plate 4. The movement of the scraping mechanism 5 can scrape and discharge the falling leachate, preventing the fermented sludge in the fermentation bin 1 from falling into the collecting bin 2 when the material is turned over, causing unnecessary waste due to a large amount of sludge particles. After the expansion sealing mechanism 6 is detached from the lower surface of the filter plate 4, the filter plate 4 can separate the fermented sludge and the generated leachate, so that the leachate falls into the collecting bin 2 for rapid collection and treatment.

[0079] See Figure 5 and Figure 6 As shown, the scraping mechanism 5 includes:

[0080] The ball screw 51 is rotatably mounted on the walls of the collection bin 2 and the sewage discharge bin 3, and one end of the ball screw 51 is connected to the output shaft of the drive motor fixed to the sewage discharge bin 3;

[0081] The ball nut 52 is sleeved on the ball screw 51, and a connecting ring 53 is installed on the ball nut 52;

[0082] and a scraper member 54 movably disposed in the collecting bin 2 to scrape the leachate and sludge collected in the collecting bin 2 to the sewage discharge bin 3;

[0083] The scraper member 54 is sleeved on the connecting ring 53, and the scraper member 54 and the connecting ring 53 are connected to each other through the connecting and separating assembly 8;

[0084] In a preferred implementation manner of this scheme, the ball screw will rotate forward and backward in the collection bin 2 and the discharge bin 3 under the drive of the drive motor fixed on the left side wall of the discharge bin 3, and the ball nut 52 is connected to the scraper member 54 through the connecting ring 53 and the connecting and separating component 8, so that the scraper member 54 can move back and forth in the collection bin 2, thereby scraping and discharging the leachate and some sludge particles falling in the collection bin 2.

[0085] See Figure 3-Figure 5 As shown, the expansion sealing mechanism 6 includes:

[0086] The support frames 61 are symmetrically placed on the side wall of the collection bin 2 away from the sewage discharge bin 3, and the two support frames 61 are provided with a rotating winding drum 62;

[0087] A through long groove 21 is provided on the side wall of the collecting bin 2 away from the sewage discharge bin 3;

[0088] The supporting long grooves 22 are symmetrically provided on the inner walls of the collecting bin 2 on both sides along the length direction of the collecting bin 2, and the supporting long grooves 22 are connected to the through long grooves 21, and the slot width of the supporting long grooves 22 is greater than the slot width of the through long grooves 21;

[0089] The airbag 63 is wound on the winding drum 62, and the free end of the airbag 63 passes through the long slot 21 and is connected to the scraper member 54;

[0090] The expansion strips 64 are placed on both side walls of the airbag 63 and are synchronously wound onto the reel 62 along with the airbag 63. The free ends of the expansion strips 64 pass through the through slots 21 and are slidably placed in the supporting slots 22.

[0091] and soft air tubes 65, a portion of the two soft air tubes 65 is fixedly arranged on the side wall of the scraper member 54, and one end of the fixed portion is connected to the end of the air bag 63 near the scraper member 54, and the other end of the fixed portion is extended out of the collection chamber 2 and connected to the air pump assembly providing the air source;

[0092] In the preferred embodiment of this scheme, when the filter plate 4 needs to be fitted and sealed, the scraper member 54 slides toward the direction of the sewage discharge bin 3, and the servo motor fixed to the back of the support frame 61 drives the winding drum 62 to rotate counterclockwise, so that it releases the rolled-up film-like airbag 63, and the expansion strips 64 integrally formed on the front and rear sides of the airbag 63 slide in the supporting long groove 22. When the scraper member 54 slides to the connection point with the sewage discharge bin 3 and the collection bin 2, the film-like airbag 63 is completely located on the lower surface of the filter plate 4, and the sliding The scraper 54 will simultaneously scrape and discharge the leachate and a small amount of sludge particles that fall into the collection bin 2, and then inflate the flat airbag 63 through one of the connected soft air pipes 65, causing it to expand and fit on the lower surface of the filter plate 4. The expansion strip 64 will simultaneously expand in the supporting long groove 22 to support the expanded airbag 63, and then the expanded airbag 63 will seal the mesh of the filter plate 4, preventing a large amount of sludge particles from falling into the collection bin 2 through the mesh of the filter plate 4 when the sludge in the fermentation bin 1 is turned over for fermentation.

[0093] When the mixed leachate in the sludge after turning over and standing needs to continue to fall into the collection bin 2 through the filter plate 4, the air valve on the other soft air pipe 65 is opened first, and then the scraper member 54 is driven from left to right in the collection bin 2. At this time, the winding drum 62 will rotate clockwise to pull the air bag 63 and the expansion strip 64 out of the collection bin 2. When the expanded air bag 63 and the expansion strip 64 pass through the small-diameter through-long groove 21, the through-long groove 21 will squeeze the gas in the air bag 63 and the expansion strip 64 into the air bag 63 and the expansion strip 64 still on the lower surface of the filter plate 4, so that the air that has not been pulled out continues to It is attached to the lower surface of the filter plate 4 and sealed to prevent a certain gap between the filter plate 4 and the air bag 63, which causes the leachate to fall into the gap and cannot be collected in a centralized manner. When the air bag 63 slowly separates from the lower surface of the filter plate 4, the leachate produced by the sludge after standing continues to fall through the mesh holes of the filter plate 4 into the collection bin 2 for collection. The length of the air bag 63 attached to the surface of the filter plate 4 can also be controlled to make the filter plate 4 in a non-fully open state, thereby allowing the fermentation bin 1 to be heat-insulated. The laying of the soft air pipe 65 prevents it from interfering with the normal sliding of the scraper member 54.

[0094] This solution cleverly connects the film-like airbag 63 with the movable scraper member 54, so that when the scraper member 54 pulls the film-like airbag 63 to expand in the collection bin 2, the scraper member 54 can simultaneously scrape off the leachate and a small amount of sludge particles that have fallen, and the inflated airbag 63 can fit tightly to the lower surface of the filter plate 4, which can not only seal the filter plate 4 and prevent a large amount of sludge particles from falling into the collection bin 2 during the turning process, but also can insulate the sludge fermented in the fermentation bin 1.

[0095] See Figure 7 and Figure 8 As shown, a movable screw conveying component 7 is provided in the sewage discharge bin 3, and the screw conveying component 7 includes:

[0096] The shaft tube 71 is sleeved on the ball screw 51 located in the sewage discharge bin 3, and the inner wall of the shaft tube 71 is provided with a key groove 72 along its length direction;

[0097] A blocking block 73 is detachably placed at the open end of the key slot 72 to block the key slot 72;

[0098] The key block 74 is fixed on the ball screw 51 located inside the shaft tube 71, and the key block 74 and the key slot 72 cooperate with each other;

[0099] A spiral piece 75 and a connecting plate 76, wherein the spiral piece 75 is sleeved on the shaft tube 71, and the connecting plate 76 is arranged at the end of the shaft tube 71 close to the direction of the connection and separation component 8;

[0100] The connecting plate 76 is detachably connected to the connecting and separating assembly 8. When the connecting plate 76 is connected to the connecting and separating assembly 8, the scraper member 54 slides in the collecting bin 2, driving the spiral piece 75 from the sewage discharge bin 3 into the collecting bin 2.

[0101] It should be noted that the section of ball screw 51 located in the sewage discharge bin 3 can be set as a shaft with a smooth outer surface, and the key block 74 is installed at a position where the outer surface of the ball screw 51 is smooth and close to the connection between the collection bin 2 and the sewage discharge bin 3, and the number of key blocks 74 and the number of key slots 72 match each other, preferably two, and the length of the shaft tube 71 is similar to the length of the sewage discharge bin 3;

[0102] In a preferred embodiment of this solution, when the ball screw 51 rotates, the shaft tube 71 drives the spiral piece 75 to rotate synchronously through the cooperation of the key block 74 and the key slot 72, thereby stirring the sludge particles scraped into the sewage discharge bin 3 and intercepted by the screen 33, preventing the sludge particles from clogging the mesh of the screen 33 and affecting the discharge of the leachate;

[0103] When it is necessary to discharge the fermented sludge in the fermentation bin 1, the scraper member 54 is moved to the connection between the collection bin 2 and the sewage discharge bin 3, and then the separation component 8 is connected to the connecting plate 76. Then, when the scraper member 54 slides in the collection bin 2 in the direction away from the sewage discharge bin 3, the scraper member 54 will drive the shaft tube 71 and the spiral piece 75 from the sewage discharge bin 3 into the collection bin 2, and at this time the key block 74 will slide relatively in the key groove 72. When the key block 74 hits the block 73 at the left notch of the key groove 72, the smaller part of the spiral piece 75 is located at the bin opening of the sewage discharge bin 3, and the larger part of the spiral piece 75 is located in the collection bin 2. At this time, as the scraper member 54 continues to move in the opposite direction When the shaft tube 71 stops sliding, the connecting plate 76 will generate a leftward pulling force on the connecting and separating component 8, so that the connecting and separating component 8 is disconnected from the scraper member 54 and the connecting ring 53. Then, when the ball screw 51 continues to rotate, it will only drive the spiral piece 75 to rotate in the collecting bin 2. At this time, the ball nut 52 and the connecting ring 53 will only rotate on the scraper member 54. Then, the spiral piece 75 rotating in the collecting bin 2 can transport and discharge the fermented sludge in the fermentation bin 1. There is no need to separately open a sewage outlet 91 for discharging the fermented sludge on the fermentation bin 1. The fermented sludge can be quickly discharged from the fermentation bin 1 through the cooperation of the collecting bin 2 and the sewage discharge bin 3.

[0104] When the fermented sludge in the fermentation bin 1 is completely discharged, the connecting and separating component 8 connects the connecting ring 53 and the scraper member 54, and simultaneously disconnects the connecting and separating component 8 from the connection plate 76. Then, when the scraper member 54 slides toward the sewage discharge bin 3, it will simultaneously push the shaft tube 71 and the spiral piece 75 toward the sewage discharge bin 3. When the key block 74 hits the block 73 at the right notch of the key groove 72, it means that the shaft tube 71 and the spiral piece 75 have slid to the extreme position toward the sewage discharge bin 3. When the scraper member 54 slides in the collection bin 2, the fermented sludge remaining in the collection bin 2 can be scraped into the sewage discharge bin 3 for full cleaning, and the operator does not need to clean the fermented sludge remaining in the collection bin 2 separately.

[0105] This solution cleverly sets a sliding shaft tube 71 and a spiral piece 75 on the ball screw 51. When the spiral piece 75 is located in the sewage discharge bin 3, rotating the spiral piece 75 can stir the sludge particles intercepted by the screen 33 to prevent the mesh of the screen 33 from being blocked. When the connecting separation component 8 is connected to the connecting disk 76, the movement of the scraper member 54 can pull the spiral piece 75 into the collection bin 2. At this time, the rotation of the spiral piece 75 can automatically transport and discharge the fermented sludge that falls into the collection bin 2. Therefore, there is no need to open a separate sewage outlet 91 for discharging the fermented sludge on the fermentation bin 1. The fermented sludge can be quickly discharged from the fermentation bin 1 through the cooperation of the collection bin 2 and the sewage discharge bin 3.

[0106] See Figure 6-Figure 8 As shown, the connection and separation component 8 includes:

[0107] Semicircular slots 55 are provided in a circumferential array at the locations where the connecting ring 53 and the scraper member 54 are connected to each other;

[0108] The limiting rod 81 is movably placed in the semicircular slot 55, and the limiting rod 81 is provided with a notch 811 corresponding to the semicircular slot 55 on the connecting ring 53;

[0109] The first elastic element 82 is sleeved on the limiting rod 81, and one end thereof contacts the scraper member 54, and the other end thereof is connected to the contact ring 83 provided at the end of the limiting rod 81;

[0110] The limiting ring 84 is sleeved on the limiting rod 81 and contacts the other side surface of the scraper member 54;

[0111] The electromagnetic suction block 85 is placed at the end of the limiting rod 81 away from the abutment ring 83 through an insulating pad;

[0112] An insulating ring 86 and a metal ring 87 , wherein the insulating ring 86 is movably mounted on the side of the connecting plate 76 close to the scraper member 54 , and a metal ring 87 is provided on the insulating ring 86 to cooperate with the electromagnetic suction block 85 ;

[0113] It should be noted that the circumferential array of semicircular slots 55 is preferably 4, and the semicircular slots 55 opened on the outer surface of the connecting ring 53 correspond to the openings of the semicircular slots 55 at the center hole of the scraper member 54. The number of the limiting rods 81 corresponds to the number of the semicircular slots 55. The notched long groove 811 is opened along the central axis line of the limiting rod 81, and the length of the notched long groove 811 is greater than the thickness of the scraper member 54. In the initial state, the notched long groove 811 is located inside the first elastic element 82, which is preferably spring-shaped. The insulating ring 86 can be rotatably embedded in the surface of the connecting disk 76, and the metal ring 87 can be embedded in the surface of the insulating ring 86. The wire for energizing the electromagnetic suction block 85 can be laid on the soft air pipe 65 or other wires or power supplies that can provide power to the electromagnetic suction block 85 (not shown in the figure);

[0114] In a preferred embodiment of this solution, when the scraper member 54 needs to slide in the collection bin 2, the portion of the limiting rod 81 away from the notched long groove 811 will be located in the two aligned semicircular slots 55, so that the limiting rod 81 can play a role in limiting the rotation of the connecting ring 53 and the ball nut 52. Then, when the ball screw 51 rotates, it will be connected to the scraper member 54 through the cooperation of the ball nut 52, the connecting ring 53 and the limiting rod 81, thereby facilitating the scraper member 54 to slide in the collection bin 2.

[0115] When the scraper 54 slides to the side close to the connecting plate 76, the four electromagnetic suction blocks 85 will come into contact with the metal ring 87, and then the energized electromagnetic suction blocks 85 will be adsorbed and connected with the metal ring 87. Then, when the scraper 54 slides in the direction away from the sewage discharge bin 3, the scraper 54 will drive the shaft tube 71 and the spiral piece 75 to move into the collection bin 2 through the limit plug rod 81, the metal ring 87 and the connecting plate 76. At this time, the first elastic element 82 on the back side will contact the limit plug through the friction ring 83. The rod 81 generates a certain thrust, so that the limit rod 81 will not slide freely in the semicircular groove hole 55. When the shaft tube 71 and the spiral piece 75 slide to the limit position, that is, the key block 74 contacts the block 73 at the left end of the key groove 72, the continued sliding of the scraper member 54 will generate a certain pulling force on the multiple limit rods 81, causing the limit rods 81 to slide relatively in the direction away from the scraper member 54. At this time, the first elastic element 82 will be compressed. When the limit rod 81 is opened When the notched long groove 811 is aligned with the semicircular groove hole 55 opened on the outer ring surface of the connecting ring 53, the limiting rod 81 no longer plays the role of axial limiting on the connecting ring 53, and the continued rotation of the ball screw 51 will only drive the ball nut 52 and the connecting ring 53 to rotate in the center opening of the scraper member 54, so that the ball screw 51 can continuously drive the spiral piece 75 to rotate in the collection bin 2 and the sewage discharge bin 3, thereby realizing the automatic and rapid discharge of the sludge that continues to fall and ferment. When it is no longer axially connected to the ball nut 52, the rolled-up airbag 63 can exert a certain pulling force on the scraper 54, so that the scraper 54 will not slide toward the connecting plate 76 due to the reverse thrust of the first elastic element 82, thereby causing the limiting rod 81 to continue to be inserted into the two semicircular slots 55. As a result, when the ball screw 51 rotates, the scraper 54 continues to slide in the collection bin 2, thereby affecting the spiral piece 75 from quickly discharging and cleaning the falling sludge.

[0116] When the sludge in the fermentation bin 1 is completely discharged, the ball screw 51 is controlled to rotate slowly so that the semicircular slot 55 on the connecting ring 53 is aligned with the semicircular slot 55 on the scraper 54, and then the multiple electromagnetic suction blocks 85 are controlled to be powered off and separated from the adsorption of the metal ring 87, and then the first elastic element 82 will apply a thrust to the resistance ring 83, so that the part of the limiting rod 81 away from the notch long groove 811 slides into the aligned semicircular slot 55, and the limiting ring 84 will limit the limiting rod 81 sliding to the left to prevent the limiting rod from sliding to the left. The insertion rod 81 is disengaged from the semicircular groove hole 55, realizing the axial connection between the connecting ring 53 and the scraper member 54, and then the reverse rotation of the ball screw 51 will drive the scraper member 54 to slide toward the sewage discharge bin 3, and the sliding of the scraper member 54 will contact the side of the metal ring 87 through the power-off electromagnetic suction block 85, and then the shaft tube 71 and the spiral sheet 75 located in the collection bin 2 can be pushed into the sewage discharge bin 3, so that they will not interfere with the normal sliding of the scraper member 54 in the collection bin 2 to scrape and discharge the leaked permeate.

[0117] See Figure 6 As shown, the connection and separation assembly 8 further includes a limiting piece 88, and a plurality of the limiting pieces 88 are respectively mounted on the scraper member 54 by bolts, and the limiting pieces 88 are in contact with the outer side surface of the connection ring 53;

[0118] It should be noted that there are preferably four limit plates 88, and each limit plate 88 is located between two limit rods 81 so that it will not interfere with the sliding of the limit rods 81. The limit plates 88 set on both sides of the scraper member 54 can limit the free-rotating connecting ring 53 in the left and right horizontal straight directions, preventing the connecting ring 53 and the ball nut 52 from detaching from the center hole of the scraper member 54 during free rotation, thereby affecting the re-transmission connection between the scraper member 54 and the connecting ring 53.

[0119] See Figure 5 and Figure 7 As shown, the filter plate 4 is provided with a mobile sewage discharge component 9 near the sewage discharge bin 3, and the mobile sewage discharge component 9 includes:

[0120] The sewage outlet 91 is provided through the filter plate 4 near the sewage bin 3, and the two side walls of the sewage outlet 91 are respectively provided with a receiving cavity 92 and a supporting cavity 93;

[0121] The movable mesh plate 94 is movable through the support cavity 93 and inserted into the sewage outlet 91, and the movable mesh plate 94 extends into the receiving cavity 92;

[0122] Push strips 95, two push strips 95 are placed on the outer side of the movable mesh plate 94, and the outer ends of the two push strips 95 are movable through the collection chamber 2 and extend into the sewage discharge chamber 3;

[0123] and a push plate 96, wherein the push plate 96 is sleeved on the end of the shaft tube 71 away from the connecting plate 76 through a bearing member, and the push plate 96 is detachably connected to the push strip 95;

[0124] It should be noted that the storage cavity 92 and the supporting cavity opening 93 are respectively located on the left and right side walls of the sewage outlet 91, and the two sliding strips 95 are respectively connected to the left side wall of the movable mesh plate 94 near the front and rear sides;

[0125] In a preferred embodiment of this scheme, in order to facilitate the rapid discharge of the sludge that has been fermented in the fermentation bin 1, this scheme opens a sewage outlet 91 on the filter plate 4 near the connection between the sewage bin 3 and the collecting bin 2. When the shaft tube 71 and the spiral blade 75 slide toward the collecting bin 2, the shaft tube 71 will drive the push plate 96 to slide synchronously toward the connection direction of the sewage bin 3 and the collecting bin 2 through the bearing member, and then the push plate 96 will push the movable mesh plate 94 to slide toward the storage chamber 92 through the push strip 95, thereby facilitating the opening of the sewage outlet 91, so that the fermented sludge in the fermentation bin 1 can fall into the collecting bin 2 through the sewage outlet 91, and the sludge located at other positions of the fermentation bin 1 will be transported to the sewage outlet 91 through the continuously rotating spiral blade 102 inside, and then transported to the sewage bin 3 for discharge through the continuously rotating spiral blade 75;

[0126] When the shaft tube 71 and the spiral sheet 75 slide in the opposite direction into the sewage discharge bin 3, the push plate 96 will drive the movable mesh plate 94 to slide to the sewage discharge port 91 to block it by pushing the long strip 95. Since the size of the movable mesh plate 94 is larger than that of the sewage discharge port 91, the other parts of the movable mesh plate 94 can be supported in the storage cavity 92 and the support cavity 93, preventing the large amount of sludge to be fermented in the fermentation bin 1 from squeezing and deforming the movable mesh plate 94, thereby affecting the normal filtration and separation of the leachate produced in the sludge by the filter plate 4;

[0127] This solution cleverly connects the movable mesh plate 94 to the shaft tube 71 through the pushing strip 95 and the pushing plate 96, so that the movable mesh plate 94 can follow the synchronous movement of the spiral piece 75 to open the sewage outlet 91, and the opening size of the sewage outlet 91 is similar to the size of the spiral piece 75 entering the collection bin 2, thereby facilitating the rotating spiral piece 75 to accurately and quickly transport and discharge the falling fermented sludge, and the cooperation of the pushing plate 96 and the scraper member 54 can block the sewage bin 3 and other positions of the collection bin 2, preventing the fermented sludge from entering the collection bin 2 or other positions of the sewage bin 3, which requires secondary cleaning.

[0128] See Figure 7 As shown, the bottom of the sewage discharge bin 3 is open, and a sealing plate 32 and a screen 33 are slidably inserted into the bottom through a support 31; it should be noted that the sealing plate 32 and the screen 33 are in mutual contact and can be detachably inserted into the support 31 of the L-shaped structure. Therefore, when it is necessary to separate the leachate and a small amount of sludge particles, it is only necessary to pull out the sealing plate 32 from the support 31 to separate it, so as to facilitate the filtration and separation of the leachate and a small amount of sludge particles by the screen 33; and when it is necessary to discharge the fermented sludge, it is necessary to simultaneously pull out the sealing plate 32 and the screen 33 from the support 31, so as to facilitate the opening of the lower bin port of the sewage discharge bin 3, so as to facilitate the rapid transportation and discharge of the sludge transported by the spiral blade 75 from the collection bin 2.

[0129] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0130] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fermentation device for sludge resource processing, comprising a fermentation chamber, a feed hopper connected to the fermentation chamber, a spiral blade arranged in the fermentation chamber for conveying and turning the sludge, an aeration unit connected to the fermentation chamber, and a power unit located outside the fermentation chamber for driving the spiral blade to rotate, characterized in that: Also includes: A collecting tank is connected to the bottom of the fermentation tank and is used to collect the leachate produced by the fermentation sludge in the fermentation tank. The collecting tank is connected to a sewage discharge tank for discharging the leachate and sludge. The filter plate is arranged at the port connecting the collecting chamber and the fermentation chamber, and is used to separate the fermentation sludge and leachate; A scraping mechanism moves linearly in the collecting chamber to scrape the collected leaked liquid from the collecting chamber; and an expansion sealing mechanism, the expansion sealing mechanism being arranged on the collection bin, and when the spiral blade turns over the sludge in the fermentation bin, the expansion sealing mechanism is driven by the scraping mechanism to expand and adhere to the lower surface of the filter plate; The expansion sealing mechanism comprises: Support frames are symmetrically placed on the side wall of the collection bin away from the sewage discharge bin, and two of the support frames are provided with rotating winding drums; A long through groove is provided on the side wall of the collection bin away from the sewage discharge bin; The supporting long grooves are symmetrically opened on the inner walls of both sides of the collecting bin along the length direction of the collecting bin, and the supporting long grooves are connected to the through long grooves, and the slot width of the supporting long grooves is greater than the slot width of the through long grooves; An air bag is wound on the winding drum, and a free end of the air bag passes through the long slot and is connected to the scraper member; The expansion strips are placed on both side walls of the airbag and are synchronously wound onto the reel following the airbag, and the free ends of the expansion strips pass through the through long slots and slide into the supporting long slots; and a soft air pipe, wherein the soft air pipe is arranged on the side wall of the scraper member, and one end of the pipe opening is connected to the end of the air bag close to the scraper member, and the other end of the pipe opening extends out of the collection bin and is connected to the air pump component that provides the air source.

2. A fermentation device for sludge resource processing according to claim 1, characterized in that: The scraping mechanism comprises: A ball screw is rotatably mounted on the walls of the collection bin and the sewage discharge bin, and one end of the ball screw is connected to the output shaft of the drive motor fixed on the sewage discharge bin; The ball nut is sleeved on the ball screw and a connecting ring is installed on the ball nut; and a scraper member, the scraper member being movably disposed in the collection bin to scrape the leachate and sludge collected in the collection bin to the sewage discharge bin; The scraper piece is sleeved on the connecting ring, and the scraper piece and the connecting ring are transmission-connected to each other via a connecting and separating assembly.

3. A fermentation device for sludge resource processing according to claim 2, characterized in that: A movable screw conveying component is provided in the sewage discharge bin, and the screw conveying component includes: A shaft tube is sleeved on the ball screw located in the sewage discharge bin, and a key groove is provided on the inner wall of the shaft tube along its length direction; A blocking block is detachably placed at the open end of the keyway to seal the keyway; The key block is fixed on the ball screw located inside the shaft tube, and the key block and the key slot cooperate with each other; A spiral sheet and a connecting plate, wherein the spiral sheet is sleeved on the shaft tube, and the connecting plate is arranged at the end of the shaft tube close to the direction of connecting and separating components; The connecting plate is detachably connected to the connecting and separating assembly. When the connecting plate is connected to the connecting and separating assembly, the scraper member slides in the collecting bin and drives the spiral blade from the sewage discharge bin into the collecting bin.

4. A fermentation device for sludge resource processing according to claim 3, characterized in that: The connection and separation component comprises: Semicircular slots are arranged in a circumferential array at the locations where the connecting ring and the scraper member are connected to each other; The limiting rod is movably placed in the semicircular slot, and the limiting rod is provided with a notch corresponding to the semicircular slot on the connecting ring; The first elastic element is sleeved on the limiting rod, and one end of the first elastic element contacts the scraper member, and the other end of the first elastic element is connected to the contact ring provided at the end of the limiting rod; A limiting ring is sleeved on the limiting rod and contacts the other side surface of the scraper member; The electromagnetic suction block is placed at the end of the limiting rod away from the interference ring through an insulating pad; An insulating ring and a metal ring, wherein the insulating ring is movably mounted on the side of the connecting disk close to the scraper member, and a metal ring is provided on the insulating ring to cooperate with the electromagnetic suction block.

5. A fermentation device for sludge resource treatment according to claim 4, characterized in that: The connection and separation assembly further comprises a limiting piece, and a plurality of the limiting pieces are respectively mounted on the scraper member through bolts, and the limiting pieces are in contact with the outer side surface of the connection ring.

6. A fermentation device for sludge resource processing according to claim 3, characterized in that: The filter plate is provided with a mobile sewage discharge assembly near the sewage discharge bin, and the mobile sewage discharge assembly includes: The sewage outlet is opened through the filter plate near the sewage discharge bin, and the two side walls of the sewage outlet are respectively provided with a receiving cavity and a supporting cavity; A movable mesh plate is movable through the support cavity and inserted into the sewage outlet, and the movable mesh plate extends into the receiving cavity; Push strips, two push strips are placed on the outer side of the movable mesh plate, and the outer ends of the two push strips are movable through the collection bin and extend into the sewage discharge bin; and a push plate, wherein the push plate is sleeved on the end of the shaft tube away from the connecting disk through a bearing member, and the push plate is detachably connected to the push strip.

7. The fermentation device for sludge resource processing according to claim 1, characterized in that: The bottom of the sewage discharge bin is in an open state, and a sealing plate and a screen are slidably inserted into the bottom of the bin through a support member.

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