Extrusion type sludge deep dehydration granulator

Abstract

The invention discloses an extrusion type sludge deep dehydration granulator, which belongs to the technical field of sludge treatment, and comprises a base and a master console, a driving motor is arranged above the master console, the driving motor is connected with a transmission assembly through a gearbox, the transmission assembly is provided with two extrusion screws for sludge dehydration in a transmission manner, and the two extrusion screws are connected with the master console. A plurality of extrusion boxes used for sludge treatment are arranged on the outer side of the extrusion screw, and a feeding hopper is arranged above the extrusion box located at the front end. Through the arrangement of the water locking pricking needles, micropores can be punctured by the water locking pricking needles at the instant of particle forming, and when water in particles seeps outwards, the water can be locked in pore channels by capillary force in the micropores, so that migration of the water to the surfaces of the particles is greatly delayed, and continuous water films causing adhesion cannot be formed on the surfaces of the particles; the initial viscosity of the particles is fundamentally reduced, the water locking pricking needles are wiped and residual water on the surfaces of the particles is absorbed when the water locking pricking needles are reset by separating from the sponge pad, the surface viscosity is further reduced, and double guarantees are formed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge treatment, and particularly relates to an extrusion type sludge deep dewatering granulator. BACKGROUND

[0002] Sludge extrusion deep dewatering granulation is a common sludge reduction and resource pretreatment process, which is mainly used for preparing granular products with low water content (which can be reduced to 50%-65%) and certain strength by combining mechanical dewatering and granulation, so as to facilitate subsequent incineration, building material utilization or landfill.

[0003] However, in the actual operation of the process, especially when treating sludge with high organic matter and high oil content, a series of outstanding challenges are faced. First, in the initial stage of dewatering and granulation, when the sludge enters the double screw extruder, due to the difference in solid-liquid specific gravity and shearing effect, "solid-liquid stratification" is prone to occur: the upper layer is thick sewage and slurry with good fluidity, and the lower layer is viscous solid. This stratification leads to uneven feeding of the double screw, difficulty in establishing dewatering pressure, not only increases the operation energy consumption and the screw torque fluctuation is severe, but also seriously affects the stability and uniformity of the dewatering effect of the whole system.

[0004] Secondly, in the sludge forming stage, the high-viscosity sludge itself has strong adhesion, and after high-pressure extrusion forming, the particles often have low strength and are easy to deform. More importantly, the water in the extruded particles will continue to migrate to the surface, resulting in the attachment of "free water" or the formation of a high-moisture thin layer. When the particles contact each other, the capillary force generated by the water film causes the particles to be seriously adhered and caked. This not only brings great difficulty to the subsequent collection, transportation and storage, and easily causes equipment blockage, but also seriously affects the quality of the granular product and the subsequent resource utilization, based on which an extrusion type sludge deep dewatering granulator is proposed. SUMMARY

[0005] The present application aims at solving the problems in the prior art and provides an extrusion type sludge deep dewatering granulator.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: An extrusion type sludge deep dewatering granulator, comprising a base and a general control console, a drive motor is arranged above the general control console, the drive motor is connected with a transmission assembly through a gear box, two extrusion screws for sludge dewatering are driven by the transmission assembly, an extrusion box for sludge treatment is arranged outside the extrusion screws, an inlet hopper is arranged above the extrusion box at the front end, and a mixing assembly for uniformly mixing the added sludge is arranged below the inlet hopper; The top of the extrusion box is provided with a mixing groove. The inner side wall of the mixing groove is connected to a U-shaped cylinder through a fixed seat. An impact hydraulic cylinder is fixedly installed on the top of the U-shaped cylinder. The output end of the impact hydraulic cylinder is connected to an arc-shaped impact seat through a propulsion assembly. Multiple electromagnetic plates for controlling the rotation of the arc-shaped impact seat are provided in the cavity of the U-shaped cylinder. A forming seat is connected to the side wall of the extrusion box at the rear end. A forming template is fixed to the inner side wall of the forming seat. A vertical plate is connected to the side wall of the forming seat through two hydraulic push rods. A water-locking needle for piercing the sludge forming particles is connected to the side wall of the vertical plate. A release assembly is provided on one side of the water-locking needle.

[0007] Preferably, the transmission assembly includes a bearing housing fixed on the base, a gear set for driving the two extrusion screws to rotate is provided inside the gear housing, a reducer is provided on one side of the bearing housing, and the gear housing is connected to the extrusion screws through the bearing housing and the reducer.

[0008] Preferably, the extrusion box is fixedly installed on the base, the inner sidewall of the extrusion box is adapted to the extrusion screw, and the main control panel is fixedly installed on the base.

[0009] Preferably, the mixing assembly includes a feeding channel fixed to the front extrusion box, the top of the feeding channel being connected to the feeding hopper, a mixing motor being fixedly installed on the side wall of the feeding channel, and an agitator blade for mixing and pushing the sludge being fixedly connected to the output end of the mixing motor via a rotating shaft.

[0010] Preferably, the inner wall of the fixed seat is fixedly connected to the outer wall of the U-shaped cylinder, and an annular sealing plate is rotatably connected to the bottom end of the U-shaped cylinder. The bottom end of the annular sealing plate is fixedly connected to the arc-shaped impact seat through a corrugated sleeve.

[0011] Preferably, the propulsion assembly includes a propulsion plate that rotates on the output end of the impact hydraulic cylinder. Two symmetrically arranged adjustment magnetic blocks are fixed on the outer wall of the propulsion plate. The bottom end of the propulsion plate is fixedly connected to the arc-shaped impact seat via a fixing rod. The side wall of the arc-shaped impact seat has multiple oblique holes. The oblique holes are connected to a receiving ring via an oblique flexible hose. The receiving ring is connected to a U-shaped cylinder, and the U-shaped cylinder contains a coagulant.

[0012] Preferably, the forming template is densely provided with extrusion holes for forming sludge particles, the water-locking needles and the extrusion holes are located on the same horizontal plane and correspond one-to-one, and the water-locking needles are fixedly connected to the vertical plate.

[0013] Preferably, the detachment assembly includes a detachment sponge pad located between the vertical plate and the molding template. The detachment sponge pad is rotatably mounted on the side wall of the molding seat via a pin, and a drive motor for driving the detachment sponge pad to deflect is fixed at the end of the pin.

[0014] Preferably, a vibrating screen is provided below the vertical plate, and the bottom of the vibrating screen has ventilation holes for blowing and drying sludge particles.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution, through the setting of the arc-shaped impact seat, can actively and powerfully impact the upper thin mud slurry layer by using the magnetically driven rotating arc-shaped impact seat, breaking it up and remixing it with the lower thick sludge, directly destroying the layered structure. At the moment of impact, the generated near-vacuum effect is used to directly and at high speed inject coagulant into the core area of ​​screw meshing, causing the upper thin mud slurry to solidify rapidly, making the properties of the upper and lower materials quickly become consistent, allowing the twin screws to start effective dewatering from the feeding section.

[0016] 2. This solution, through the setting of water-locking needles, can pierce micropores at the moment of particle forming. When the water inside the particle seeps outward, it is "locked" in the channel by the capillary force (tension) in the micropore, thereby greatly delaying the migration of water to the particle surface. The particle surface cannot form a continuous water film that causes adhesion, fundamentally reducing the initial viscosity of the particle. When the sponge pad is removed and the water-locking needles are reset, the water-locking needles are wiped and the residual water on the particle surface is absorbed, further reducing the surface viscosity and forming a double protection. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an extrusion-type deep dewatering and granulation machine for sludge proposed in this invention; Figure 2 This is an overall assembly drawing of an extrusion-type sludge deep dewatering granulator proposed in this invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the gear set in an extrusion-type deep dewatering granulator for sludge proposed in this invention; Figure 5 This is a schematic diagram of the structure inside the feeding channel of an extrusion-type sludge deep dewatering granulator proposed in this invention; Figure 6 This is a schematic diagram of the extrusion screw in an extrusion-type deep dewatering granulator for sludge proposed in this invention; Figure 7 This is a schematic diagram of the fixed seat position in an extrusion-type sludge deep dewatering granulator proposed in this invention; Figure 8 This is a schematic diagram of the connection between the fixed seat and the rotary cylinder in an extrusion-type deep dewatering granulator for sludge proposed in this invention. Figure 9This is a partial cross-sectional view of the rotary drum in an extrusion-type sludge deep dewatering granulator proposed in this invention; Figure 10 This is an assembly diagram of the rotary drum in an extrusion-type deep dewatering granulator for sludge, as proposed in this invention. Figure 11 This is a schematic diagram of the detachment component in an extrusion-type sludge deep dewatering granulator proposed in this invention.

[0018] In the diagram: 1. Base; 2. Control panel; 3. Drive motor; 4. Gearbox; 5. Bearing housing; 6. Reducer; 7. Extrusion box; 8. Extrusion screw; 9. Mixing motor; 10. Feed hopper; 11. Discharge channel; 12. Agitator blades; 13. Fixing seat; 14. Retractable cylinder; 15. Impact hydraulic cylinder; 16. Electromagnetic plate; 17. Annular sealing plate; 18. Corrugated sleeve; 19. Adjusting magnetic block; 20. Receiving ring; 21. Arc-shaped impact seat; 22. Forming seat; 23. Forming template; 24. Hydraulic push rod; 25. Vertical plate; 26. Water-locking needle; 27. Detachable sponge pad; 28. Vibrating screen. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Example, refer toFigures 1 to 11 An extrusion-type sludge deep dewatering granulator includes a base 1 and a main control panel 2. A drive motor 3 is installed above the main control panel 2. The drive motor 3 is connected to a transmission assembly via a gearbox 4. The transmission assembly drives two extrusion screws 8 for sludge dewatering. Multiple extrusion boxes 7 for sludge treatment are installed on the outside of the extrusion screws 8. A feed hopper 10 is installed above the front end of the extrusion box 7. A mixing assembly for uniformly mixing the added sludge is installed below the feed hopper 10. Furthermore, the transmission assembly includes a bearing housing 5 fixed on the base 1, a gearbox 4 containing a gear set for driving the two extrusion screws 8 to rotate, a reducer 6 on one side of the bearing housing 5, and the gearbox 4 being connected to the extrusion screws 8 via the bearing housing 5 and the reducer 6. The extrusion box 7 is fixedly installed on the base 1, and the inner sidewall of the extrusion box 7 is adapted to the extrusion screws 8. The main control panel 2 is fixedly installed on the base 1. The mixing assembly includes a feeding channel 11 fixed on the front extrusion box 7, the top of the feeding channel 11 being connected to the feed hopper 10, and a mixing motor 9 fixedly installed on the sidewall of the feeding channel 11. The output end of the mixing motor 9 is fixedly connected to an agitator blade 12 for mixing and pushing the sludge via a rotating shaft. It should be noted that: the sludge that has undergone preliminary dewatering treatment, along with a low proportion of coagulant and flocculant, is poured into the feed hopper 10 on the feeding channel 11. At the same time, the mixing motor 9 is started to drive multiple stirring blades 12 to rotate. The rotating stirring blades 12 will mix the poured sludge evenly and push it into the extrusion box 7 below the feeding channel 11. Before this, the drive motor 3 on the main control panel 2 is started. The drive motor 3 drives two extrusion screws 8 to rotate through the gear set. Under the transmission action of the bearing box 5 and the reducer 6, the extrusion screws 8 rotate in a stable and slow state. This is a well-known technical means and will not be elaborated on here. The two rotating extrusion screws 8 will continuously compact the sludge flowing into the extrusion box 7 and push it forward. The top of the extrusion box 7 is provided with a mixing groove. The inner side wall of the mixing groove is connected to a spiral cylinder 14 through a fixed seat 13. An impact hydraulic cylinder 15 is fixedly installed on the top of the spiral cylinder 14. The output end of the impact hydraulic cylinder 15 is connected to an arc-shaped impact seat 21 through a propulsion assembly. Multiple sets of electromagnetic plates 16 for controlling the rotation of the arc-shaped impact seat 21 are provided in the cavity of the spiral cylinder 14. Furthermore, the inner wall of the fixed seat 13 is fixedly connected to the outer wall of the U-shaped cylinder 14, and the bottom end of the U-shaped cylinder 14 is rotatably connected to an annular sealing plate 17. The bottom end of the annular sealing plate 17 is fixedly connected to the arc-shaped impact seat 21 through a corrugated sleeve 18. The propulsion assembly includes a propulsion plate that rotates on the output end of the impact hydraulic cylinder 15. Two symmetrically arranged adjusting magnetic blocks 19 are fixed on the outer wall of the propulsion plate. The bottom end of the propulsion plate is fixedly connected to the arc-shaped impact seat 21 through a fixing rod. The side wall of the arc-shaped impact seat 21 is provided with multiple oblique holes. The oblique holes are connected to a receiving ring 20 through an oblique flexible hose. The receiving ring 20 is connected to the U-shaped cylinder 14. The U-shaped cylinder 14 is filled with coagulant. It should be noted that in the initial stage when the sludge enters the extrusion box 7, the sludge tends to settle under the rotation of the extrusion screw 8, resulting in the sludge in the front section of the extrusion box 7 being in a stratified state, with the upper layer being thick sewage and slurry, and the lower layer being viscous sludge. During the continuous extrusion process of the extrusion screw 8, the impact hydraulic cylinder 15 on the fixed seat 13 is activated. Simultaneously, alternating current is supplied to multiple sets of electromagnetic plates 16 in the cavity of the return cylinder 14, causing the magnetic field of the multiple electromagnetic plates 16 arranged in a ring to continuously change. When the impact hydraulic cylinder 15 pushes the propulsion plate downward, the two adjusting magnetic blocks 19 on the side wall of the propulsion plate are affected by the changing magnetic field of the electromagnetic plates 16. The rotation occurs under the action of the field, which in turn drives the receiving ring 20 and the arc-shaped impact seat 21 to rotate through the fixed rod. This causes the rotating arc-shaped impact seat 21 to rotate rapidly and impact the thick sewage and slurry in the upper layer of the extrusion box 7. During the downward impact of the arc-shaped impact seat 21, the corrugated sleeve 18 will be stretched, allowing the receiving ring 20, which was originally stored in the contracted state of the corrugated sleeve 18, to expand outward. The coagulant in the spiral cylinder 14 is centrifugally thrown out during the rotation. At the moment when the arc-shaped impact seat 21 impacts the thick sewage and slurry, it will be in a near-vacuum state, allowing the thrown coagulant to quickly break through to the middle part of the two extrusion screws 8. The benefits mentioned above are: it facilitates the coagulant to continuously solidify the upper layer of sludge, allows the extrusion screw 8 to quickly dewater the sludge in the front section, avoids the sludge from continuously maintaining a layered state, and allows the sludge to be continuously and evenly compacted in the subsequent stages. This greatly improves the uniformity and stability of the feeding of the twin-screw structure, ensures that the extrusion dewatering efficiency is in the optimal state from the beginning, and avoids equipment fluctuations, uneven dewatering, and increased energy consumption caused by layering. The extrusion box 7 located at the rear end is connected to a forming seat 22 on its side wall. A forming template 23 is fixed on the inner side wall of the forming seat 22. A vertical plate 25 is connected to the side wall of the forming seat 22 through two hydraulic push rods 24. A water-locking needle 26 for piercing the sludge forming particles is connected to the side wall of the vertical plate 25. A release component is provided on one side of the water-locking needle 26. Furthermore, the forming template 23 is densely provided with extrusion holes for forming sludge particles. The water-locking needles 26 are located on the same horizontal plane as the extrusion holes and correspond one-to-one. The water-locking needles 26 are fixedly connected to the vertical plate 25. The detachment assembly includes a detachment sponge pad 27 located between the vertical plate 25 and the forming template 23. The detachment sponge pad 27 is rotatably mounted on the side wall of the forming base 22 by a pin. The end of the pin is fixed with a drive motor for driving the detachment sponge pad 27 to deflect. A vibrating screen 28 is provided below the vertical plate 25. The bottom of the vibrating screen 28 is provided with ventilation holes for blowing and drying sludge particles. It should be noted that: during the dewatering and extrusion of sludge into the forming seat 22, and the slow extrusion of granules through the forming template 23, in the initial stage of sludge granule extrusion, the hydraulic pusher 24 pulls the vertical plate 25 towards the forming template 23, causing the vertical plate 25 to drive multiple water-locking needles 26 to pierce the extruded sludge granules, leaving tiny pores in the middle of the sludge granules. Water then seeps out along these tiny pores, and under tension, the water within the tiny pores is locked inside the sludge granules, making it difficult for water inside the sludge granules to penetrate to the sludge surface, thus preventing water from seeping between the sludge granules. During the process of the vertical plate 25 driving the water-locking needle 26 to reset, the detached sponge pad 27 will push the sludge particles on the water-locking needle 26 to the vibrating screen 28 for collection. During the process of the detached sponge pad 27 contacting and squeezing the sludge particles, it will absorb the water on the sludge particles and reduce the viscosity of the sludge particle surface. After the detached sponge pad 27 separates from the water-locking needle 26, the detached sponge pad 27 is controlled to deflect at a certain angle, so that the vibrating airflow generated on the vibrating screen 28 can dry the detached sponge pad 27 to a certain extent, so that the detached sponge pad 27 can maintain good absorbency. The advantages mentioned above are: this allows for puncturing during the extrusion molding process of sludge particles, locking the moisture in the tiny pores and preventing a water film from seeping onto the sludge surface, thus reducing the likelihood of sludge particles sticking together. In use, the sludge that has undergone preliminary dewatering, along with a low proportion of coagulant and flocculant, is poured into the feed hopper 10 on the feeding channel 11. At the same time, the mixing motor 9 is started to drive multiple stirring blades 12 to rotate. The rotating stirring blades 12 will mix the poured sludge evenly and push it into the extrusion box 7 below the feeding channel 11. Before this, the drive motor 3 on the main control panel 2 is started. The drive motor 3 drives two extrusion screws 8 to rotate through the gear set. Under the transmission action of the bearing box 5 and the reducer 6, the extrusion screws 8 rotate in a stable and slow state. This is a known technical means and will not be described in detail here. The two rotating extrusion screws 8 will continuously compact the sludge flowing into the extrusion box 7 and push it forward. In the initial stage when the sludge enters the extrusion box 7, the sludge tends to settle under the rotation of the extrusion screw 8, resulting in a stratified state of the sludge in the front section of the extrusion box 7. The upper layer is thick sewage and slurry, and the lower layer is viscous sludge. As the extrusion screw 8 continues to push and extrude, the impact hydraulic cylinder 15 on the fixed seat 13 is activated. At the same time, alternating current is supplied to multiple sets of electromagnetic plates 16 in the cavity of the revolute cylinder 14, causing the magnetic field of the multiple electromagnetic plates 16 in a ring array to change continuously. When the impact hydraulic cylinder 15 pushes the push plate downward, the two adjusting magnetic blocks 19 on the side wall of the push plate rotate under the action of the changing magnetic field of the electromagnetic plates 16. This, in turn, drives the receiving ring 20 and the arc-shaped impact seat 21 to rotate through the fixed rod, causing... The rapidly rotating arc-shaped impact seat 21 impacts the upper layer of thick sewage and sludge in the extrusion box 7. During the downward impact, the arc-shaped impact seat 21 stretches the corrugated sleeve 18, allowing the storage ring 20, which was originally stored in the contracted state of the corrugated sleeve 18, to expand outward. The coagulant in the rotary cylinder 14 is centrifugally thrown out during the rotation. At the moment of impacting the thick sewage and sludge, the arc-shaped impact seat 21 will be in a near-vacuum state, allowing the thrown coagulant to quickly break through to the middle part of the two extrusion screws 8. This facilitates the coagulant to continuously solidify the upper layer of sludge, allowing the extrusion screws 8 to quickly dehydrate the sludge in the front section, preventing the sludge from continuously maintaining a layered state, and allowing the sludge to be continuously and evenly compacted in the subsequent stages. The sludge is dewatered and extruded into the forming seat 22, and then slowly extruded into particles through the forming template 23. In the initial stage of sludge particle extrusion, the hydraulic push rod 24 pulls the vertical plate 25 towards the forming template 23, causing the vertical plate 25 to drive multiple water-locking needles 26 to pierce the extruded sludge particles, leaving tiny pores in the middle of the sludge particles. Water in the middle of the sludge particles seeps out along the tiny pores, and the water in the tiny pores is locked inside the sludge particles under the action of tension, thus making it difficult for water in the sludge particles to penetrate to the sludge surface and avoiding adhesion between the sludge particles. During the process of the vertical plate 25 driving the water-locking needles 26 to reset, they disengage from the sponge pad 27 and release the water-locking needles. The sludge particles on the needle 26 are pushed onto the vibrating screen 28 for collection. During the process of contact and compression between the detached sponge pad 27 and the sludge particles, the needle absorbs the moisture on the sludge particles, reducing the viscosity of the sludge particle surface. After the detached sponge pad 27 separates from the water-locking needle 26, the detached sponge pad 27 is controlled to deflect at a certain angle, so that the vibrating airflow generated on the vibrating screen 28 can dry the detached sponge pad 27 to a certain extent, so that the detached sponge pad 27 can maintain good absorbency. This allows the needle to puncture the sludge particles during the extrusion molding process, locking the moisture of the sludge particles in the tiny pores, preventing the water film from penetrating the sludge surface, and reducing the adhesion of sludge particles.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An extrusion-type sludge deep dewatering granulator, comprising a base (1) and a main control panel (2), characterized in that, A drive motor (3) is provided above the main control panel (2). The drive motor (3) is connected to a transmission assembly through a gearbox (4). The transmission assembly drives two extrusion screws (8) for sludge dewatering. An extrusion box (7) for sludge treatment is provided on the outside of the extrusion screws (8). A feed hopper (10) is provided above the extrusion box (7) at the front end. A mixing assembly for mixing the added sludge evenly is provided below the feed hopper (10). The top of the extrusion box (7) is provided with a mixing groove. The inner side wall of the mixing groove is connected to a spiral cylinder (14) through a fixed seat (13). The top of the spiral cylinder (14) is fixedly installed with an impact hydraulic cylinder (15). The output end of the impact hydraulic cylinder (15) is connected to an arc-shaped impact seat (21) through a propulsion assembly. The cavity of the spiral cylinder (14) is provided with multiple sets of electromagnetic plates (16) for controlling the rotation of the arc-shaped impact seat (21). The side wall of the extrusion box (7) at the rear end is connected to a forming seat (22). The inner side wall of the forming seat (22) is fixed with a forming template (23). The side wall of the forming seat (22) is connected to a vertical plate (25) through two hydraulic push rods (24). The side wall of the vertical plate (25) is connected to a water-locking needle (26) for piercing the sludge forming particles. A release assembly is provided on one side of the water-locking needle (26).

2. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The transmission assembly includes a bearing housing (5) fixed on a base (1), a gearbox (4) is provided with a gear set for driving the two extrusion screws (8) to rotate, a reducer (6) is provided on one side of the bearing housing (5), and the gearbox (4) is connected to the extrusion screws (8) through the bearing housing (5) and the reducer (6).

3. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The extrusion box (7) is fixedly installed on the base (1), the inner wall of the extrusion box (7) is adapted to the extrusion screw (8), and the main control panel (2) is fixedly installed on the base (1).

4. The extrusion-type deep dewatering and granulation machine for sludge according to claim 1, characterized in that, The mixing assembly includes a feeding channel (11) fixed on the front extrusion box (7). The top of the feeding channel (11) is connected to the feed hopper (10). A mixing motor (9) is fixedly installed on the side wall of the feeding channel (11). The output end of the mixing motor (9) is fixedly connected to an agitator (12) for mixing and pushing sludge through a rotating shaft.

5. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The inner wall of the fixed seat (13) is fixedly connected to the outer wall of the spiral tube (14), and the bottom end of the spiral tube (14) is rotatably connected to an annular sealing plate (17). The bottom end of the annular sealing plate (17) is fixedly connected to the arc-shaped impact seat (21) through a corrugated sleeve (18).

6. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The propulsion assembly includes a propulsion plate that rotates on the output end of the impact hydraulic cylinder (15). Two symmetrically arranged adjustment magnetic blocks (19) are fixed on the outer wall of the propulsion plate. The bottom end of the propulsion plate is fixedly connected to the arc-shaped impact seat (21) through a fixing rod. The side wall of the arc-shaped impact seat (21) is provided with multiple oblique holes. The oblique holes are connected to a receiving ring (20) through an oblique flexible hose. The receiving ring (20) is connected to a spiral cylinder (14). The spiral cylinder (14) is filled with coagulant.

7. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The forming template (23) is densely provided with extrusion holes for forming sludge particles. The water-locking needles (26) are located on the same horizontal plane as the extrusion holes and correspond one-to-one. The water-locking needles (26) are fixedly connected to the vertical plate (25).

8. The extrusion-type sludge deep dewatering and granulation machine according to claim 1, characterized in that, The detachment assembly includes a detachment sponge pad (27) located between the vertical plate (25) and the molding template (23). The detachment sponge pad (27) is rotatably mounted on the side wall of the molding seat (22) by a pin. The end of the pin is fixed with a drive motor for driving the detachment sponge pad (27) to deflect.

9. The extrusion-type deep dewatering and granulation machine for sludge according to claim 1, characterized in that, A vibrating screen (28) is provided below the vertical plate (25), and the bottom of the vibrating screen (28) is provided with ventilation holes for blowing and drying sludge particles.

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