Self-cleaning double-barrel spiral-belt sludge conditioning and concentration integrated device

Abstract

The present application relates to sludge treatment technical field, disclose a kind of self-cleaning double-barrelled screw belt type sludge conditioning concentration integrated device, including processing tank, motor being arranged on processing tank and stirring rod being fixed with motor output end, processing tank is composed of outer barrel and inner barrel, stirring rod extends to inner barrel, further include multiple groups of first blade group being arranged on stirring rod, extension rod being fixed at the bottom end of stirring rod, sealing sleeve column being sleeved on the outer surface of extension rod, multiple groups of second blade group being rotatably arranged on sealing sleeve column and capsule type extrusion mechanism being arranged between stirring rod and extension rod.The present application is by being provided with first blade group and second blade group, first blade group uses fixed angle of inclination, second blade group can be adjusted to angle of inclination, initial state is in larger angle of inclination, can assist upper layer mud medicine mixing, when sludge downlink to inner barrel middle lower part and form dense flocculation, by adjusting to smaller angle of inclination, avoid the problem that flocculation has been formed and is broken.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and in particular to a self-cleaning dual-barrel ribbon sludge conditioning and concentration integrated device. Background Technology

[0002] Sludge, an inevitable byproduct of wastewater treatment, is large in volume, complex in composition, and contains a large amount of harmful substances. It must undergo effective reduction, stabilization, and harmless treatment before final disposal. Sludge conditioning and thickening is a key pre-treatment step in the entire process. Its core purpose is to change the colloidal structure of sludge through physical or chemical methods, thereby disrupting its stability and releasing bound water. Currently, this process usually relies on integrated sludge conditioning and thickening equipment. As an important product of the environmental protection equipment manufacturing industry, this equipment works primarily based on the combination of mechanical stirring and chemical reaction. In this process, flocculants (such as high molecular weight polyacrylamide PAM) and other chemical agents are usually added to the sludge. Utilizing their adsorption bridging and charge neutralization effects, the fine sludge particles aggregate into large, dense, easily settling, and dewatered flocs, thereby achieving solid-liquid separation of the sludge.

[0003] However, in existing technologies, when the agent is first added to the conditioning tank, it forms a muddy mixture with the sludge. At this point, the agent molecules have not yet fully interacted with the sludge particles. The spiral blades on the stirring rod need to be kept at a specific angle to provide strong shear force, ensuring the agent is quickly and evenly dispersed throughout the sludge. At this fixed angle, the spiral blades, while rotating continuously, also generate a downward axial thrust, pushing the upper mud-drug mixture gradually down to the lower concentration zone. However, once the sludge in the lower concentration zone forms dense, coarse flocs under the action of the agent, if the spiral blade angle remains at its initial state, its transmission... The shear force intensity in the lower layer will remain unchanged. The continuous strong shear force will directly break up the large flocs that have already formed in the lower layer, causing the floc structure to be destroyed and re-dissociated into small, non-settling dispersed particles. This will reverse the solid-liquid separation process that has already started, and the sludge thickening effect will be significantly reduced. In subsequent operations, if the mechanical force is weakened by reducing the overall speed of the stirring rod in order to protect the lower layer of flocs, the turbulence intensity in the upper mixing zone will be insufficient, which will not meet the mixing requirements of the newly added sludge and reagents, thus causing uneven mixing and further affecting the subsequent flocculation and thickening efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cleaning dual-barrel spiral ribbon sludge conditioning and concentration integrated device to solve the problem mentioned in the background art that the strong shear force continuously generated by the fixed-angle spiral ribbon blades in the prior art can easily damage the formed flocs.

[0005] The present invention provides a self-cleaning dual-barrel ribbon sludge conditioning and concentration integrated device, which adopts the following technical solution:

[0006] A self-cleaning dual-barrel spiral ribbon sludge conditioning and concentration integrated device includes a treatment tank, a motor mounted on the treatment tank, and a stirring rod fixed to the output end of the motor. The treatment tank consists of an outer barrel and an inner barrel. The stirring rod extends into the inner barrel. The device also includes multiple sets of first blades mounted on the stirring rod, an extension rod fixed to the bottom end of the stirring rod, a sealing sleeve sleeved on the outer surface of the extension rod, multiple sets of second blades rotatably mounted on the sealing sleeve, and a bladder-type extrusion mechanism mounted between the stirring rod and the extension rod.

[0007] Multiple sets of the second blade group are equidistantly distributed along the circumference of the sealing sleeve column and uniformly arranged along the axial direction of the sealing sleeve column. Each set of the second blade group includes a rotating shaft rotatably connected to the sealing sleeve column through a bearing, a connecting rod fixed to the rotating shaft, and a second spiral blade fixed on the connecting rod. The bladder-type extrusion mechanism can deform according to the change in the viscosity of the sludge in the inner tank, drive the second spiral blade to rotate around the rotating shaft, and realize the adjustment of the tilt angle of the second blade group.

[0008] Furthermore, the bladder-type extrusion mechanism includes a flexible bladder sleeve fixedly fitted to the outer surface of the stirring rod, a sealed liquid cavity opened within the flexible bladder sleeve, and an overflow cavity opened on the inner wall of the stirring rod near the extension rod end. The sealed liquid cavity is filled with hydraulic oil, and an oil passage is provided between the inner walls of the sealed liquid cavity and the overflow cavity. A piston block is slidably arranged in the overflow cavity, and an extension shaft is fixed on the piston block. The extension shaft passes through the bottom end of the stirring rod and is fixed with a sliding block. A sliding groove is opened on the inner wall of the top end of the extension rod, and the sliding block is slidably connected in the sliding groove and a return spring is fixed between the sliding groove and the sliding groove.

[0009] Furthermore, the two ends of the sealing sleeve are fixed to the stirring rod and the extension rod, respectively. An annular cavity is formed between the outer wall of the extension rod and the inner wall of the sealing sleeve. A variable angle mechanism is provided in the annular cavity. The variable angle mechanism includes a hollow sleeve that is slidably disposed in the annular cavity. The hollow sleeve is slidably sleeved on the outer surface of the extension rod. Multiple sets of connecting columns are fixed at equal intervals along the circumferential direction on the sliding block. All sets of connecting columns extend into the annular cavity and are fixed to the hollow sleeve. The hollow sleeve has arc-shaped slides that correspond one-to-one with the rotating shaft. A toothed plate is fixed in each set of arc-shaped slides. The end of the rotating shaft away from the connecting rod extends into the arc-shaped slide and is fixed with a driven gear. The driven gear meshes with the corresponding toothed plate.

[0010] Furthermore, the extension rod is provided with a track corresponding to the connecting post, and the connecting post is slidably connected in the track.

[0011] Furthermore, a sealing gasket is provided at the bottom of the inner wall of the overflow cavity, and a sealing gasket is provided at the bottom of the piston block corresponding to the sealing gasket.

[0012] Furthermore, the oil passage is located near the top of the inner wall of the sealed liquid cavity and the overflow cavity, and the oil passage is inclined.

[0013] Furthermore, the extension shaft is limited by a spline and extends through the bottom end of the stirring rod and the top end of the extension rod.

[0014] Furthermore, multiple sets of the first blade groups are equidistantly distributed along the circumference of the stirring rod and uniformly arranged along the axial direction of the stirring rod. Each set of the first blade groups includes a fixed rod fixed to the stirring rod and a first spiral blade fixed to the fixed rod. The cross-section of the first spiral blade is smaller than the cross-section of the second spiral blade.

[0015] Furthermore, the edge of the second spiral blade is provided with a rubber sheet, which contacts the side wall of the inner barrel.

[0016] Furthermore, the treatment tank also includes a sludge inlet on the inner barrel and extending to the outer barrel, multiple sets of mesh holes evenly opened along the lower side wall of the inner barrel, a drain outlet near the lower part of the outer barrel, a sludge outlet at the bottom of the inner barrel, and an overflow outlet near the upper part of the inner barrel.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up a first blade group and a second blade group, the first blade group adopts a fixed tilt angle. The first spiral blade has a smaller cross-section, which can generate strong radial flow and shear force when driven by the stirring rod to rotate. It can fully and efficiently mix the sludge and agent newly added from the sludge inlet, ensuring that the agent is quickly and evenly dispersed, and avoiding the problem of uneven mixing caused by insufficient stirring intensity. The second blade group can adjust the tilt angle. In the initial state, it has a larger tilt angle, which can assist the mixing of the upper sludge and agent. When the sludge descends to the lower part of the inner tank and forms a dense floc, it is adjusted to a smaller tilt angle. At this time, the axial pushing ability of the second spiral blade is enhanced and the shearing effect is weakened, which can effectively avoid the problem of the formed floc being broken.

[0019] 2. By setting up a bladder-type extrusion mechanism and a variable angle mechanism, when the sludge thickens and forms flocs, causing an increase in local resistance, the flexible bladder can deform through pressure extrusion, extruding hydraulic oil into the overflow chamber, pushing the piston block, extension shaft, and sliding block to slide, causing the hollow sleeve rod to move along the extension rod axially, ultimately realizing the tilt angle adjustment of the second spiral blade. This allows the second spiral blade to autonomously adjust its tilt angle according to the sludge state without reducing the overall speed of the stirring rod, and also allows the second blade group to switch to a low-shear, high-push mode, achieving a dynamic response to changes in sludge viscosity. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a front view cross-sectional view of the processing tank of the present invention;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the outer and inner barrels of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the stirring rod, the first blade group, the extension rod, the sealing sleeve, the second blade group, and the bladder-type extrusion mechanism of the present invention.

[0024] Figure 5 This is a three-dimensional cross-sectional view of the stirring rod, extension rod, sealing sleeve, and bladder-type extrusion mechanism of the present invention.

[0025] Figure 6 This is a front view cross-sectional diagram of the stirring rod, extension rod, sealing sleeve, and flexible bladder of the present invention.

[0026] Figure 7 This is a three-dimensional cross-sectional view of the stirring rod and the angle-changing mechanism of the present invention;

[0027] Figure 8 This is a three-dimensional cross-sectional view of the stirring rod, extension rod, and flexible bladder of the present invention.

[0028] Figure 9 This is an exploded three-dimensional structural diagram of the piston block, extension shaft, sliding block, and hollow sleeve rod of the present invention.

[0029] Figure 10 This is a three-dimensional cross-sectional view of the sealing sleeve column, rotating shaft, connecting rod, extension shaft, sliding block, and angle-changing mechanism of the present invention;

[0030] Figure 11 This is a partial cross-sectional schematic diagram of the three-dimensional structure of the sealing sleeve column and hollow sleeve rod of the present invention.

[0031] In the picture:

[0032] 1. Processing tank; 11. Outer tank; 12. Inner tank; 13. Sludge inlet; 14. Mesh; 15. Drain outlet; 16. Sludge outlet; 17. Overflow outlet; 2. Motor; 3. Agitator rod; 4. First blade group; 41. Fixing rod; 42. Spiral ribbon blade one; 5. Extension rod; 6. Sealing sleeve; 7. Second blade group; 71. Rotating shaft; 72. Connecting rod; 73. Spiral ribbon blade two; 731. Rubber sheet; 8. 81. Bladder-type compression mechanism; 82. Flexible bladder sleeve; 83. Sealed liquid chamber; 84. Overflow chamber; 85. Sealing gasket one; 86. Oil passage; 87. Piston block; 88. Sealing gasket two; 99. Extension shaft; 100. Sliding block; 11. Sliding groove; 12. Return spring; 13. Variable angle mechanism; 14. Hollow sleeve rod; 15. Connecting column; 16. Track; 17. Arc-shaped slide; 18. Gear plate; 19. Driven gear. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Reference Figures 1-2 This invention provides a self-cleaning dual-barrel spiral ribbon sludge conditioning and concentration integrated device, including a treatment tank 1. The treatment tank 1 includes an outer barrel 11, an inner barrel 12 disposed inside the outer barrel 11, a sludge inlet 13 disposed on the inner barrel 12 and extending to the outside of the outer barrel 11, multiple sets of mesh holes 14 evenly opened along the lower side wall of the inner barrel 12, a drain outlet 15 disposed near the lower position of the outer barrel 11, a sludge outlet 16 disposed at the bottom of the inner barrel 12, and an overflow outlet 17 disposed near the upper position of the inner barrel 12. A motor 2 is disposed on the treatment tank 1, and a stirring rod 3 is fixed to the output end of the motor 2. The stirring rod 3 extends into the inner barrel 12. By setting the outer barrel 11 and the inner barrel 12, the flocculation reaction and hydraulic separation are carried out simultaneously. The multiple sets of mesh holes 14 opened on the lower side wall of the inner barrel 12 allow water to quickly precipitate out to the outer barrel 11 and be discharged in a concentrated manner through the drain outlet 15, effectively improving the concentration efficiency.

[0035] Reference Figures 2-4 It also includes multiple sets of first blades 4 disposed on the stirring rod 3, an extension rod 5 fixed to the bottom end of the stirring rod 3, a sealing sleeve 6 sleeved on the outer surface of the extension rod 5, multiple sets of second blades 7 rotatably disposed on the sealing sleeve 6, and a bladder-type extrusion mechanism 8 disposed between the stirring rod 3 and the extension rod 5.

[0036] Specifically, refer to Figure 4Multiple sets of second blade groups 7 are equidistantly distributed along the circumference of the sealing sleeve column 6 and uniformly arranged along the axial direction of the sealing sleeve column 6. Each set of second blade groups 7 includes a rotating shaft 71 rotatably connected to the sealing sleeve column 6 via a bearing, a connecting rod 72 fixed to the rotating shaft 71, and a spiral blade 73 fixed on the connecting rod 72. When the spiral blade 73 is at a large inclination angle, it generates a strong axial diversion and shearing effect on the sludge fluid, which is suitable for the rapid mixing stage of the upper sludge and the agent. The edge of the spiral blade 73 is provided with a rubber sheet 731. The rubber sheet 731 contacts the side wall of the inner tank 12. During the rotation, the rubber sheet 731 can effectively scrape off the sludge attached to the wall of the inner tank 12 to prevent sludge accumulation, and at the same time clean up particles that may clog the mesh 14, keeping the mesh 14 unobstructed.

[0037] When the sludge concentrates into flocs in the inner tank 12, causing an increase in local resistance, the deformation generated by the bladder-type extrusion mechanism 8 drives the second spiral blade 73 to rotate to a smaller angle. At this time, the axial pushing ability of the second spiral blade 73 is enhanced while the shearing effect is weakened, thereby effectively preventing the breakage of the formed flocs.

[0038] It should be noted that the bladder-type extrusion mechanism 8 is located in the lower middle part of the inner barrel 12. The bladder-type extrusion mechanism 8 can deform according to the change in the viscosity of the sludge in the inner barrel 12, driving the second spiral blade 73 to rotate around the rotating shaft 71, thereby adjusting the tilt angle of the second blade group 7. For details, refer to... Figures 5-9The bladder-type compression mechanism 8 includes a flexible bladder 81 fixedly sleeved on the outer surface of the stirring rod 3, a sealed liquid chamber 82 opened within the flexible bladder 81, and an overflow chamber 83 opened on the inner wall of the stirring rod 3 near the extension rod 5. The flexible bladder 81 is made of a corrosion-resistant material, such as fluororubber or hydrogenated nitrile rubber, but not limited to the aforementioned materials. The flexible bladder 81 can directly sense the pressure difference caused by the change in the viscosity of the sludge in the inner tank 12 and convert the pressure into its own deformation. The sealed liquid chamber 82 is filled with hydraulic oil, and an oil passage 84 is opened between the inner walls of the sealed liquid chamber 82 and the overflow chamber 83. When the flexible bladder 81 is compressed due to the increased external sludge pressure, the hydraulic oil in the sealed liquid chamber 82 can be transmitted to the overflow chamber 83 through the oil passage 84. A piston block 85 is slidably mounted, and an extension shaft 86 is fixed on the piston block 85. The extension shaft 86 passes through the bottom end of the stirring rod 3 and a sliding block 87 is fixed thereon. A sliding groove 88 is opened on the inner wall of the top end of the extension rod 5. The sliding block 87 is slidably connected in the sliding groove 88 and a return spring 89 is fixed between the sliding groove 88 and the sliding block 87. The sliding block 87 can slide in the sliding groove 88 under the push of the piston block 85 and the extension shaft 86. When the pressure of the external sludge on the flexible sleeve 81 decreases, the elastic force of the return spring 89 can drive the sliding block 87 to move in the opposite direction, drive the piston block 85 to reset in the overflow chamber 83, and push the hydraulic oil back to the sealed liquid chamber 82 through the oil passage 84, so that the flexible sleeve 81 returns to its original state. At the same time, the piston block 85 will only start to move when the thrust generated by the pressure on the flexible sleeve 81 can overcome the initial elastic force of the return spring 89.

[0039] The two ends of the sealing sleeve 6 are fixed to the stirring rod 3 and the extension rod 5, respectively. The top end of the sealing sleeve 6 is fixed to the bottom end of the stirring rod 3, and the bottom end of the sealing sleeve 6 is fixed to the extension rod 5. The bottom end of the extension rod 5 is rotatably connected to the inner barrel 12 through a waterproof bearing. An annular cavity is formed between the outer wall of the extension rod 5 and the inner wall of the sealing sleeve 6. An angle-changing mechanism 9 is provided in the annular cavity. For details, refer to... Figures 7-11The variable angle mechanism 9 includes a hollow sleeve rod 91 slidably disposed within the annular cavity. The hollow sleeve rod 91 is slidably sleeved on the outer surface of the extension rod 5 and slides along the axial direction of the extension rod 5. Through the action of the sealing sleeve 6, it can effectively isolate the interference of external sludge. Multiple sets of connecting columns 92 are equidistantly fixed on the sliding block 87 along the circumferential direction. All sets of connecting columns 92 extend into the annular cavity and are fixed to the hollow sleeve rod 91. The extension rod 5 has a track 921 corresponding to each connecting column 92. The track 921 passes through the sliding groove 88 to the annular cavity. The connecting columns 92 are slidably connected within the track 921. The linear motion of the sliding block 87 within the sliding groove 88 can be transmitted to the annular cavity through the connecting columns 92. On the hollow sleeve rod 91, multiple sets of connecting pins 92 serve to limit the movement of the hollow sleeve rod 91, thereby preventing the hollow sleeve rod 91 from deviating or jamming during its up and down sliding. The hollow sleeve rod 91 has arc-shaped slides 93 that correspond one-to-one with the rotating shaft 71. Each set of arc-shaped slides 93 has a toothed plate 94 fixed inside. The end of the rotating shaft 71 away from the connecting rod 72 extends into the arc-shaped slide 93 and is fixed with a driven gear 95. The driven gear 95 meshes with the corresponding toothed plate 94. When the toothed plate 94 moves axially with the hollow sleeve rod 91, it drives the driven gear 95 to rotate, thereby driving the rotating shaft 71 and the connecting rod 72 and the second spiral blade 73 to rotate synchronously, realizing the adjustment of the tilt angle of the second spiral blade 73.

[0040] Among them, reference Figures 7-8 A sealing gasket 831 is provided at the bottom of the inner wall of the overflow chamber 83, and a sealing gasket 851 corresponding to the sealing gasket 831 is provided at the bottom of the piston block 85. When the piston block 85 moves to the bottom of the overflow chamber 83, the sealing gasket 831 and the sealing gasket 851 fit tightly together, which can effectively prevent hydraulic oil from leaking from the bottom of the overflow chamber 83.

[0041] Oil passage 84 is located near the top of the inner wall of the sealed liquid chamber 82 and the overflow chamber 83. Oil passage 84 is inclined, which helps to improve the continuity and stability of hydraulic oil during the flow process.

[0042] It should be noted that the extension shaft 86 is limited by a spline through the bottom end of the stirring rod 3 and the top end of the extension rod 5. The spline connection limits the extension shaft 86 in the circumferential direction of the stirring rod 3 and the extension rod 5, ensuring that the extension shaft 86 can rotate synchronously with the stirring rod 3. At the same time, the spline connection allows the extension shaft 86 to slide freely in the axial direction, which facilitates the transmission of the linear movement of the piston block 85 to the sliding block 87.

[0043] Multiple sets of first blade groups 4 are equidistantly distributed along the circumference of the stirring rod 3 and uniformly arranged along the axial direction of the stirring rod 3. For details, refer to... Figure 4Each first blade group 4 includes a fixed rod 41 fixed to the stirring rod 3 and a spiral blade 42 fixed to the fixed rod 41. Multiple first blade groups 4 are fixedly installed on the stirring rod 3. The blade inclination angle of the first blade group 4 is set to a fixed value, which can form a continuous and stable flow field in the upper area of ​​the inner tank 12, thereby fully mixing the sludge and chemicals newly added from the sludge inlet 13.

[0044] Among them, the cross-section of the first ribbon blade 42 is smaller than that of the second ribbon blade 73. The smaller cross-section of the first ribbon blade 42 is mainly used to generate strong radial flow and shear force to meet the high-intensity stirring requirements of the upper mixing zone, while the larger cross-section of the second ribbon blade 73 provides a larger working area and is mainly used to generate strong axial pushing force in the lower concentration zone, and to achieve gentle conveying of materials through variable angle to avoid floc breakage.

[0045] The present invention provides a working principle of a self-cleaning dual-barrel spiral ribbon sludge conditioning and concentration integrated device: During operation, the motor 2 starts, driving the stirring rod 3, the first blade group 4, the extension rod 5, the sealing sleeve column 6, and the second blade group 7 to rotate synchronously. The sludge after adding the medicine continuously enters the upper part of the inner barrel 12 from the sludge inlet 13. The spiral ribbon blade 42 with a fixed inclination angle generates a high-intensity shear flow, ensuring that the sludge and the medicine are quickly and evenly mixed. Under the initial large inclination angle of the spiral ribbon blade 73, the mixed material continues to be stirred and pushed downward. Under the action of gravity and compression, the water is separated through the mesh 14 on the side wall of the inner barrel 12 to the outer barrel 11, and finally discharged from the drain outlet 15, thus achieving preliminary concentration.

[0046] As the material descends to the lower part of the inner barrel 12 and gradually concentrates to form large flocs, the viscosity of the local sludge increases, putting pressure on the flexible sleeve 81, causing it to deform under pressure. This compresses the hydraulic oil in the sealed liquid chamber 82 and squeezes it into the overflow chamber 83 through the inclined oil passage 84. This pushes the piston block 85 to move downwards against the elastic force of the return spring 89. The piston block 85 pushes the sliding block 87 to slide in the sliding groove 88 through the extension shaft 86. The sliding block 87 drives the hollow sleeve rod 91 in the annular cavity to move axially along the extension rod 5 through multiple sets of connecting columns 92. The movement of the hollow sleeve rod 91 causes the toothed plate 94 fixed on it to move accordingly, thereby driving the driven gear 95 meshing with it to rotate. This drives the rotating shaft 71 and the second spiral blade 73 to rotate to a smaller angle. The smaller angle reduces the shearing effect of the second spiral blade 73 on the material, enhances the axial conveying capacity, and effectively protects the flocs already formed in the lower layer from damage.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A self-cleaning double-barrel spiral belt sludge conditioning and concentration integrated device, comprising a treatment tank (1), a motor (2) arranged on the treatment tank (1), and a stirring rod (3) fixed with the output end of the motor (2), wherein the treatment tank (1) is composed of an outer barrel (11) and an inner barrel (12), and the stirring rod (3) extends into the inner barrel (12), characterized in that, Also include a plurality of first blade group (4) set on the stirring rod (3), fixed at the bottom end of the extension rod (5) of stirring rod (3), sleeve set in the outer surface of the extension rod (5) of sealing sleeve column (6), a plurality of second blade group (7) rotationally arranged on the sealing sleeve column (6) and set between the stirring rod (3) and the extension rod (5) of capsule type extrusion mechanism (8); A plurality of the second blade group (7) is equidistantly distributed along the circumferential direction of the sealing sleeve column (6) and uniformly arranged along the axial direction of the sealing sleeve column (6), each of the second blade group (7) comprises a rotating shaft (71) rotationally connected with the sealing sleeve column (6) through a bearing, a connecting rod (72) fixed with the rotating shaft (71), and a screw blade two (73) fixed on the connecting rod (72), wherein the capsule type extrusion mechanism (8) can be deformed according to the change of the sludge viscosity in the inner barrel (12), drive the screw blade two (73) to rotate around the rotating shaft (71), and adjust the inclination angle of the second blade group (7); The sealing sleeve column (6) comprises a flexible capsule sleeve (81) fixedly sleeved on the outer surface of the stirring rod (3), a sealed liquid cavity (82) opened in the flexible capsule sleeve (81), and an overflow cavity (83) opened in the inner wall of the stirring rod (3) near one end of the extension rod (5), the sealing liquid cavity (82) is filled with hydraulic oil, the oil channel (84) is throughly opened between the inner wall of the sealing liquid cavity (82) and the overflow cavity (83), the piston block (85) is slidably arranged in the overflow cavity (83), the extension shaft (86) is fixed on the piston block (85), the extension shaft (86) penetrates the bottom end of the stirring rod (3) and is fixed with the sliding block (87), the top end inner wall of the extension rod (5) is provided with a sliding groove (88), the sliding block (87) is slidably connected in the sliding groove (88) and is fixed with the return spring (89) between the sliding groove (88); The two ends of the sealing sleeve column (6) are fixed on the stirring rod (3) and the extension rod (5) respectively, and the annular cavity is formed between the outer wall of the extension rod (5) and the inner wall of the sealing sleeve column (6), wherein the variable angle mechanism (9) is arranged in the annular cavity, the hollow sleeve rod (91) is slidably arranged in the annular cavity, the hollow sleeve rod (91) is slidably arranged on the outer surface of the extension rod (5), a plurality of connecting columns (92) are equidistantly fixed on the sliding block (87) along the circumferential direction, the plurality of connecting columns (92) extend into the annular cavity and are fixed with the hollow sleeve rod (91), the hollow sleeve rod (91) is provided with an arc-shaped sliding groove (93) corresponding to the rotating shaft (71), each of the arc-shaped sliding grooves (93) is fixed with a toothed plate (94), and the end of the rotating shaft (71) away from the connecting rod (72) extends into the arc-shaped sliding groove (93) and is fixed with a driven gear (95), the driven gear (95) is engaged with the corresponding toothed plate (94); The extension rod (5) is provided with a track (921) corresponding to the connecting column (92), and the connecting column (92) is slidably connected in the track (921).

2. The self-cleaning twin barrel spiral-belt sludge conditioning and thickening integrated device according to claim 1, characterized in that, The inner wall bottom end of the overflow cavity (83) is provided with a sealing gasket I (831), and the bottom end of the piston block (85) is provided with a sealing gasket II (851) corresponding to the sealing gasket I (831).

3. The self-cleaning twin barrel spiral-belt sludge conditioning and thickening integrated device according to claim 1, characterized in that, The oil channel (84) is arranged in the upper position of the inner wall of the closed liquid cavity (82) and the overflow cavity (83), and is arranged in an inclined manner.

4. The self-cleaning twin barrel spiral-belt sludge conditioning and thickening integrated device according to claim 1, characterized in that, The extension shaft (86) penetrates the bottom end of the stirring rod (3) and the top end of the extension rod (5) through the spline limiting.

5. The self-cleaning twin barrel ribbon screw sludge conditioning concentration integrated device according to claim 1, characterized in that, A plurality of groups of the first blade groups (4) are equidistantly distributed along the circumferential direction of the stirring rod (3) and are uniformly arranged along the axial direction of the stirring rod (3), each group of the first blade groups (4) comprises a fixed rod (41) fixed to the stirring rod (3) and a screw belt blade I (42) fixed to the fixed rod (41), and the cross section of the screw belt blade I (42) is smaller than the cross section of the screw belt blade II (73).

6. The self-cleaning twin barrel spiral-belt sludge conditioning and thickening integrated device according to claim 1, wherein, The edge of the screw belt blade II (73) is provided with a rubber sheet (731), and the rubber sheet (731) is in contact with the side wall of the inner barrel (12).

7. The self-cleaning twin barrel spiral-belt sludge conditioning and thickening integrated device according to claim 1, characterized in that, The processing tank (1) further comprises a mud inlet (13) arranged on the inner barrel (12) and extending to the outside of the outer barrel (11), a plurality of groups of mesh holes (14) uniformly arranged at the lower position of the side wall of the inner barrel (12), a drainage port (15) arranged at the lower position of the outer barrel (11), a mud outlet (16) arranged at the bottom of the inner barrel (12), and an overflow port (17) arranged at the upper position of the inner barrel (12).

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