An asphalt sludge concentration apparatus

Abstract

The application relates to the technical field of sludge concentration, and discloses an asphalt sludge concentration device, which comprises an extruder main body, a belt pulley group is arranged at the side wall of the extruder main body, a motor one is fixedly connected to the side wall of the extruder main body, the output end of the side wall of the motor one is fixedly connected to the side wall of the belt pulley group, the gear rod is driven to rotate by starting the motor two, the gear ring is driven to rotate, the screen cylinder is slowly rotated, the connecting ring and the sliding ring are driven to rotate, the extrusion connecting rod of the concave-convex groove is moved away from the screen cylinder, a negative pressure is generated in the air pressure frame through the adsorption assembly, the inner wall and the outer wall of the screen cylinder form a pressure difference, the outflow speed of sewage is accelerated, the sewage is rapidly discharged from the screen cylinder, the gathering of the sewage in the screen cylinder is reduced, the asphalt sludge is effectively prevented from being relatively viscous, the outflow speed of the sewage is slow, more sewage is accumulated in the screen cylinder, the extrusion of solid substances in the sludge is affected, and therefore the good concentration effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of sludge thickening equipment technology, specifically to an asphalt sludge thickening device. Background Technology

[0002] Asphalt sludge is a complex, difficult-to-treat oily solid waste, mainly originating from petroleum refining, asphalt production, storage, transportation, and use processes. Its core characteristics are high viscosity, high water content, and high hydrocarbon content, possessing both pollutant and resource recovery value. An asphalt sludge thickening device is an industrial equipment specifically designed to reduce the volume of asphalt sludge to facilitate subsequent transportation, disposal (such as incineration or landfill), or resource recovery (such as asphalt or heat recovery).

[0003] In the treatment of asphalt sludge, screw presses are often used to concentrate the asphalt sludge. Usually, the screw extrusion squeezes out the water in the sludge to concentrate it. However, when concentrating asphalt sludge with a high water content, because the asphalt sludge is relatively viscous and has a binding force on water, water may slowly flow out from the screen cylinder during screw extrusion. This results in a large amount of water remaining in the press, which may make it difficult to squeeze out the solid matter in the sludge and affect the concentration effect of the sludge. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an asphalt sludge thickening device, including an extruder body, a pulley set provided on the side wall of the extruder body, a motor fixedly connected to the side wall of the extruder body, and the output end of the motor fixedly connected to the side wall of the pulley set.

[0005] The thickening mechanism has a spiral assembly fixedly installed on its top and a separation assembly rotatably installed on its inner wall. The spiral assembly is used to squeeze the asphalt sludge.

[0006] A dewatering mechanism, installed on the inner wall of the thickening mechanism, is used to accelerate the discharge of wastewater from the asphalt sludge; and

[0007] The conversion mechanism, located on the inner wall of the concentration unit, is used to change the dehydration position;

[0008] A screen cylinder is rotatably connected to the inner wall of the extruder body, a connecting ring is fixedly connected to the outer wall of the screen cylinder, and a sliding ring is slidably connected to the inner wall of the spiral assembly, with grooves and protrusions on the inner wall of the sliding ring.

[0009] The process involves feeding asphalt sludge into the main body of the extruder, then squeezing the asphalt sludge through a thickening mechanism to remove water from the sludge, thereby reducing the accumulation of wastewater in the screen cylinder. This effectively prevents the asphalt sludge from being too viscous, causing the wastewater to flow out slowly and accumulating a lot of wastewater in the screen cylinder, which would affect the squeezing of solid matter in the sludge. Afterward, the water in the sludge is quickly discharged from the screen cylinder through a dewatering mechanism, and finally, the dewatering position of the dewatering mechanism is changed through a switching mechanism.

[0010] Preferably, the concentration mechanism includes:

[0011] The spiral assembly is fixed to the top of the extruder body at its outer wall and is used to extrude asphalt sludge.

[0012] The separation component is rotatably mounted on the outer wall of the separation component and the inner wall of the extruder body, and is used to remove wastewater from the asphalt sludge;

[0013] The process involves squeezing the asphalt sludge using a spiral assembly to expel wastewater from the sludge, followed by separating the wastewater from the sludge using a separation assembly, thus concentrating the sludge.

[0014] Preferably, the dehydration mechanism includes:

[0015] The drive assembly is fixedly mounted on the side wall of the extruder body by fasteners and is used to rotate the screen cylinder.

[0016] The fasteners include a motor 2 fixedly connected to the side wall of the extruder body, and a gear ring fixedly connected to the outer wall of the screen cylinder;

[0017] The adsorption component is fixedly installed on the inner wall of the extruder body by a support member, and is used to draw the sewage out of the screen cylinder.

[0018] The support components include two pneumatic frames fixedly connected to the inner wall of the extruder body, and piston plates are slidably connected to the inner walls of both pneumatic frames;

[0019] The system uses a drive component to rotate the screen cylinder. During this rotation, the sludge adhering to the inner wall of the screen cylinder rotates synchronously with it. The adsorption component generates negative pressure, which attracts the wastewater in the sludge and causes it to drain quickly. This effectively prevents the asphalt sludge from becoming too viscous and the wastewater from flowing out slowly, thus preventing the accumulation of a lot of wastewater in the screen cylinder and affecting the compression of solid matter in the sludge. This ensures a good concentration effect.

[0020] Preferably, the conversion mechanism includes:

[0021] The pushing component is fixedly installed on the outer wall of the screen cylinder via a connector, and is used to push the sliding ring to separate from the connecting ring;

[0022] The connector includes a convex ring fixedly connected to the outer wall of the screen cylinder, and two fixing blocks fixedly connected to the inner wall of the extruder body;

[0023] The extrusion assembly is slidably mounted on the inner wall of the screen cylinder via a sliding member, and is used to extrude sludge.

[0024] The sliding component includes an extrusion block that is slidably connected to the inner wall of the screen cylinder, and a spring rod is fixedly connected to the side wall of the extrusion block;

[0025] When the screen cylinder rotates, it drives the pushing component to rotate, causing the pushing component to push the sliding ring to separate from the connecting ring, changing the contact position between the adsorption component and the screen cylinder. This prevents negative pressure or high pressure from acting on the same area of ​​the screen cylinder for a long time, which would cause blockage of the negative pressure adsorption area of ​​the screen cylinder. When the pushing component moves, it causes the squeezing block to move and squeeze the sludge, increasing the squeezing force and forcing the water wrapped in the sludge to separate and permeate towards the screen cylinder.

[0026] Preferably, the screw assembly includes a screw rod rotatably connected to the inner wall of the extruder body, and the outer wall of the screw rod is fixedly connected to the inner wall of the pulley assembly;

[0027] The separation assembly includes a spring stop block that is slidably connected to the inner wall of the extruder body, and a pressure regulating cover is provided on the side wall of the extruder body, with the inner wall of the pressure regulating cover slidably connected to the outer wall of the spring stop block.

[0028] The operator feeds the asphalt sludge to be concentrated into the extruder body through the feeding port. Then, the motor is started, driving the pulley set to rotate. The pulley set drives the screw rod to rotate, which in turn transports the sludge towards the spring stop. The spring stop blocks the sludge. When the sludge transported by the screw rod comes into contact with the spring stop, the subsequent sludge pushes the sludge in front, squeezing the spring stop and squeezing out the water. The pressure regulating cover can be moved by rotating the nut, which then presses against the spring on the side wall of the spring stop, adjusting the squeezing pressure of the spring stop. The wastewater in the sludge is filtered through the screen and enters the extruder body. It then flows from the inclined surface inside the extruder body into the drain outlet and is discharged through the drain outlet. During the process of the sludge pushing the spring stop, the spring stop separates from the screen, and the sludge is discharged through the gap between the two, falling into the slag discharge port, thus concentrating the sludge.

[0029] Preferably, the drive assembly includes a gear rod fixedly connected to the output end of the motor on both side walls, the outer wall of the gear rod meshing with the outer wall of the gear ring, and a plurality of engaging grooves are provided on the inner wall of the sliding ring, the inner walls of the plurality of engaging grooves slidingly connected with the outer wall of the connecting ring.

[0030] During the sludge compression process of the screw, the starting motor drives the gear rod to rotate. The gear rod meshes with the gear ring, causing the gear ring to rotate, which in turn causes the screen cylinder to rotate slowly. The rotation speed of the screen cylinder is lower than that of the screw. When the screen cylinder rotates, it drives the connecting ring to rotate. The outer wall of the connecting ring contacts the inner wall of the locking groove, which in turn drives the sliding ring to rotate.

[0031] Preferably, the adsorption assembly includes connecting rods fixedly connected to the sidewalls of the piston plates, with the outer walls of both connecting rods slidably connected to the inner walls of the grooves, and a blocking rod fixedly connected to the side of each piston plate away from the connecting rods.

[0032] Preferably, the adsorption assembly further includes an exhaust groove formed on the inner wall of the pressure frame, the outer walls of the two blocking rods are slidably connected to the inner wall of the exhaust groove, and the inner walls of the two pressure frames are provided with drainage grooves.

[0033] During the rotation of the sliding ring, the protruding part of the groove contacts the connecting rod, pushing the connecting rod away from the screen cylinder. This causes the piston plate and the blocking rod to move. When the blocking rod moves into the exhaust groove, the side of the piston plate closest to the screen cylinder is sealed. As the piston plate continues to move, negative pressure is generated in the air pressure frame until the blocking rod separates from the exhaust groove. The negative pressure in the air pressure frame then connects with the outside, creating a pressure difference between the inner and outer walls of the screen cylinder. This attracts wastewater from the sludge in the screen cylinder towards the screen cylinder, accelerating the outflow of wastewater. The outflowing wastewater enters the air pressure frame. As the piston plate continues to move, the drain groove is opened, allowing the wastewater in the air pressure frame to be discharged. By accelerating the flow of wastewater, it quickly flows out of the screen cylinder, reducing the accumulation of wastewater in the screen cylinder. This effectively prevents the accumulation of wastewater in the screen cylinder due to the viscous asphalt sludge and slow outflow, which would affect the compression of solid matter in the sludge and ensure a good concentration effect.

[0034] Preferably, the pushing assembly includes a pushing rod disposed at the top of the screen cylinder, the outer wall of the pushing rod being slidably connected to the inner wall of two fixed blocks, and a fixing ring being fixedly connected to the inner wall of the extruder body;

[0035] Five spring rods are slidably connected to the inner wall of the fixed ring, and the side walls of the five spring rods are in contact with the side wall of the sliding ring.

[0036] When the screen cylinder rotates, it drives the convex ring to rotate. As the convex ring continues to rotate, the protruding part of the convex ring will contact the push rod, squeezing the push rod to move towards the gear ring. The push rod will then contact the sliding ring, pushing the sliding ring to move and separating it from the connecting ring. When the sliding ring moves, it will squeeze the spring rod, allowing the spring rod to accumulate rebound force. As the convex ring continues to rotate, the protruding part of the convex ring will separate from the push rod. At this time, the pushing force on the sliding ring disappears, and the sliding ring will be blocked by the connecting ring. Because the screen cylinder rotates at a relatively slow speed, as the connecting ring continues to rotate and the size of the locking groove is relatively large, the protruding part of the connecting ring will align with the locking groove again.

[0037] Preferably, the extrusion assembly includes a fixed frame fixedly connected to the inner wall of the fixed ring, a rocker arm rotatably connected to the inner wall of the fixed frame, and the outer wall of the spring rod two slidably connected to the inner wall of the spring stop.

[0038] When spring rod one moves, the spring rod one on the back will contact the rocker, pushing the rocker to rotate. This causes the side of the rocker that is in contact with spring rod one to move away from the fixed ring, and the other side to move closer to spring rod two. Since the rotation center of the rocker is closer to spring rod one and farther away from the other side, according to the lever principle, the longer the lever arm, the greater the distance the endpoint moves. The side farther away from the rotation center of the rocker has a longer distance. Therefore, the side closer to spring rod two will move a greater distance. During the rotation of the rocker, it will squeeze spring rod two to move, allowing it to accumulate rebound force. Spring rod two will push the squeezing block to move towards the spiral rod, squeezing the sludge. By actively moving the squeezing block forward, squeezing the sludge, and increasing the squeezing force, the water wrapped in the sludge is forced to separate and permeate towards the screen cylinder. This effectively prevents the air pressure frame from attracting water from the sludge when the sliding ring and connecting ring separate, thus affecting the continuous and rapid discharge of water from the sludge.

[0039] The present invention has the following beneficial effects:

[0040] (1) When using this invention, the operator puts the asphalt sludge to be concentrated into the extruder body through the feeding port. The sludge is squeezed by the screw assembly, and the water in the sludge is separated by the separation assembly. Then, the motor is started to drive the gear rod to rotate, which drives the gear ring to rotate, so that the screen cylinder rotates slowly, and drives the connecting ring and sliding ring to rotate. This causes the extrusion connecting rod of the groove to move away from the screen cylinder. Through the adsorption assembly, a negative pressure is generated in the air pressure frame, which creates a pressure difference between the inner wall and the outer wall of the screen cylinder, speeding up the outflow of sewage and allowing the sewage to flow out of the screen cylinder quickly. This reduces the accumulation of sewage in the screen cylinder and effectively prevents the asphalt sludge from being too viscous and the sewage from flowing out slowly, which would cause a lot of sewage to accumulate in the screen cylinder and affect the squeezing of solid substances in the sludge, thus ensuring a good concentration effect.

[0041] (2) During the continuous rotation of the sliding ring, when the recessed position of the drain groove contacts the connecting rod again, it will squeeze the connecting rod to move towards the screen cylinder, causing the piston plate and the blocking rod to move. This allows the piston plate to squeeze the gas in the air pressure frame. At this time, the squeezed gas will be blocked by the blocking rod, so the gas pressure will increase until the blocking rod separates from the exhaust groove, removing the obstruction to the gas. The high-pressure gas will then spray out onto the screen cylinder, back-blowing the screen cylinder and clearing the screen cylinder, keeping the screen holes of the screen cylinder unobstructed. This effectively prevents the sludge from being too viscous and causing the screen holes on the screen cylinder to become clogged, thus affecting the discharge of sewage.

[0042] (3) When the screen cylinder rotates, the convex ring will rotate, and the protruding position of the convex ring will squeeze the push rod to push the sliding ring to move, so that the sliding ring and the connecting ring will separate. When the sliding ring moves, it will squeeze the spring rod until the convex ring and the push rod separate. At this time, the thrust on the sliding ring will disappear. At this time, the spring rod will push the sliding ring back to its original position, so that when the connecting ring rotates, it will continue to drive the sliding ring to rotate. By pushing the sliding ring and the connecting ring to separate, the screen cylinder continues to rotate during the separation process, while the sliding ring stops moving, which will cause the piston plate to stop moving. After that, the connecting ring will drive the sliding ring to rotate again, changing the contact area between the negative pressure and the high pressure generated in the screen cylinder and the air pressure frame, avoiding the negative pressure or high pressure acting on the same area of ​​the screen cylinder for a long time, which will cause blockage of the negative pressure adsorption area of ​​the screen cylinder.

[0043] (4) When the spring rod moves, the spring rod on the back side will contact the rocker plate, pushing the rocker plate to rotate, so that the side of the rocker plate that contacts the spring rod moves away from the fixed ring, and the other side moves closer to the spring rod. The spring rod moves by squeezing the spring rod, allowing it to accumulate rebound force. The spring rod pushes the squeezing block to move towards the spiral rod, squeezing the sludge. By actively moving the squeezing block forward, squeezing the sludge, the squeezing force is increased, forcing the water wrapped in the sludge to separate and penetrate towards the screen cylinder. This effectively prevents the air pressure frame from attracting the water in the sludge when the sliding ring and the connecting ring separate, thus affecting the continuous and rapid discharge of water in the sludge. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a cross-sectional view of the overall structure of the present invention;

[0046] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 3 This is a cross-sectional schematic diagram of the main body of the extruder of the present invention;

[0048] Figure 4 This is a schematic cross-sectional view of the sieve cylinder of the present invention;

[0049] Figure 5 This is a top sectional view of the sieve cylinder of the present invention;

[0050] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0051] Figure 7 This is a schematic cross-sectional view of the pneumatic frame of the present invention from the right side;

[0052] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0053] Figure 9 This is a schematic diagram of the right-side structure of the sliding ring of the present invention;

[0054] Figure 10 This is a schematic diagram of the convex ring structure of the present invention;

[0055] Figure 11 This is a schematic cross-sectional view of the main body of the extruder of the present invention;

[0056] Figure 12 For the present invention Figure 11 Enlarged diagram of point C in the middle.

[0057] The attached diagram lists the components represented by each number as follows:

[0058] In the diagram: 1. Concentration mechanism; 11. Screw assembly; 12. Separation assembly; 111. Extruder body; 112. Pulley assembly; 113. Motor 1; 114. Screw rod; 121. Screen cylinder; 122. Spring stop; 123. Pressure regulating cover; 2. Dewatering mechanism; 21. Drive assembly; 22. Adsorption assembly; 211. Motor 2; 212. Gear ring; 213. Gear rod; 214. Connecting ring; 215. Sliding ring; 216. Concave... 217. Engaging groove; 221. Air pressure frame; 222. Piston plate; 223. Connecting rod; 224. Blocking rod; 225. Exhaust groove; 226. Drainage groove; 3. Conversion mechanism; 31. Pushing assembly; 32. Extrusion assembly; 311. Protruding ring; 312. Fixing block; 313. Pushing rod; 314. Fixing ring; 315. Spring rod one; 321. Extrusion block; 322. Spring rod two; 323. Fixing frame; 324. Rocker. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Example 1, please refer to Figures 1-4 The present invention is an asphalt sludge thickening device, including an extruder body 111, a pulley group 112 is provided on the side wall of the extruder body 111, a motor 113 is fixedly connected to the side wall of the extruder body 111, and the output end of the motor 113 is fixedly connected to the side wall of the pulley group 112.

[0061] A thickening mechanism 1 is provided, with a spiral assembly 11 fixedly installed on the top of the thickening mechanism 1 and a separation assembly 12 rotatably installed on the inner wall of the thickening mechanism 1. The spiral assembly 11 is used to squeeze the asphalt sludge.

[0062] Dewatering unit 2, installed on the inner wall of thickening unit 1, is used to accelerate the discharge of wastewater from asphalt sludge; and

[0063] The conversion mechanism 3 is located on the inner wall of the concentration mechanism 1 and is used to change the dehydration position;

[0064] A screen cylinder 121 is rotatably connected to the inner wall of the extruder body 111, a connecting ring 214 is fixedly connected to the outer wall of the screen cylinder 121, and a sliding ring 215 is slidably connected to the inner wall of the spiral assembly 11, with a groove 216 provided on the inner wall of the sliding ring 215.

[0065] In this process, asphalt sludge is fed into the main body 111 of the extruder, and then the asphalt sludge is squeezed by the thickening mechanism 1 to squeeze out the water in the sludge, thereby reducing the accumulation of sewage in the screen cylinder 121. This effectively prevents the asphalt sludge from being too viscous and the sewage from flowing out slowly, which would cause a lot of sewage to accumulate in the screen cylinder 121 and affect the squeezing of solid matter in the sludge. After that, the water in the sludge is quickly discharged from the screen cylinder 121 by the dewatering mechanism 2. Finally, the dewatering position of the dewatering mechanism 2 is changed by the conversion mechanism 3.

[0066] Concentration unit 1 includes:

[0067] The spiral assembly 11 is fixedly installed on the top of the extruder body 111 at its outer wall and is used to extrude asphalt sludge.

[0068] The separation component 12 is rotatably disposed on the outer wall of the separation component 12 and the inner wall of the extruder body 111, and is used to remove wastewater from the asphalt sludge.

[0069] In this process, the asphalt sludge is squeezed by the spiral assembly 11 to expel the wastewater from the sludge, and then the wastewater is separated from the sludge by the separation assembly 12 to concentrate the sludge.

[0070] Dehydration mechanism 2 includes:

[0071] The drive assembly 21 is fixedly mounted on the side wall of the extruder body 111 by a fastener, and is used to rotate the screen cylinder 121.

[0072] The fasteners include a motor 211 fixedly connected to the side wall of the extruder body 111, and a gear ring 212 fixedly connected to the outer wall of the screen cylinder 121.

[0073] Adsorption component 22 is fixedly installed on the inner wall of the extruder body 111 by a support member, and is used to attract the sewage flowing out of the screen cylinder 121.

[0074] The support includes two pneumatic frames 221 fixedly connected to the inner wall of the extruder body 111, and piston plates 222 are slidably connected to the inner walls of the two pneumatic frames 221.

[0075] The drive component 21 drives the screen cylinder 121 to rotate. During the rotation of the screen cylinder 121, the sludge attached to the inner wall of the screen cylinder 121 will rotate synchronously with the screen cylinder 121. The adsorption component 22 generates negative pressure, which attracts the sewage in the sludge to be discharged quickly. This effectively prevents the asphalt sludge from being too viscous and the sewage from flowing out slowly, which would cause a lot of sewage to accumulate in the screen cylinder 121 and affect the compression of solid matter in the sludge, thus ensuring a good concentration effect.

[0076] The conversion mechanism 3 includes:

[0077] A pushing component 31 is fixedly installed on the outer wall of the screen cylinder 121 via a connector, and is used to push the sliding ring 215 to separate from the connecting ring 214.

[0078] The connecting parts include a protruding ring 311 fixedly connected to the outer wall of the screen cylinder 121, and two fixing blocks 312 fixedly connected to the inner wall of the extruder body 111;

[0079] The extrusion assembly 32 is slidably disposed on the inner wall of the screen cylinder 121 via a sliding member, and is used to extrude sludge.

[0080] The sliding component includes a pressing block 321 that is slidably connected to the inner wall of the screen cylinder 121, and a spring rod 322 is fixedly connected to the side wall of the pressing block 321.

[0081] When the screen cylinder 121 rotates, it drives the pushing component 31 to rotate, causing the pushing component 31 to push the sliding ring 215 to separate from the connecting ring 214, changing the contact position between the adsorption component 22 and the screen cylinder 121. This prevents negative pressure or high pressure from acting on the same area of ​​the screen cylinder 121 for a long time, which would cause blockage of the negative pressure adsorption area of ​​the screen cylinder 121. When the pushing component 31 moves, it causes the squeezing block 321 to move and squeeze the sludge, increasing the squeezing force and forcing the water wrapped in the sludge to separate and permeate towards the screen cylinder 121.

[0082] Example 2, please refer to Figures 1-12 The present invention is an asphalt sludge thickening device. Based on Example 1, the screw assembly 11 includes a screw rod 114 rotatably connected to the inner wall of the extruder body 111, and the outer wall of the screw rod 114 is fixedly connected to the inner wall of the pulley assembly 112.

[0083] The separation assembly 12 includes a spring stop 122 that is slidably connected to the inner wall of the extruder body 111, and a pressure regulating cover 123 is provided on the side wall of the extruder body 111. The inner wall of the pressure regulating cover 123 is slidably connected to the outer wall of the spring stop 122.

[0084] The operator feeds the asphalt sludge to be concentrated into the extruder body 111 through the feeding port, for example: Figure 3 As shown in position G, then start motor 113, which drives pulley assembly 112 to rotate. Pulley assembly 112 drives screw rod 114 to rotate. Screw rod 114 rotates, conveying sludge towards spring stop 122. Spring stop 122 blocks the sludge. When the sludge conveyed by screw rod 114 contacts spring stop 122, subsequent sludge pushes the preceding sludge, squeezing spring stop 122 and causing it to move. This squeezing removes water from the sludge. The pressure regulating cover 123 can be moved by rotating the nut. Figure 3 As shown in position F, the pressure regulating cover 123 presses the spring on the side wall of the spring stop 122, adjusting the pressing force of the spring stop 122. Wastewater in the sludge will be filtered through the screen cylinder 121 and enter the extruder body 111. It will then flow from the inclined surface inside the extruder body 111 into the drain outlet and be discharged through the drain outlet. Figure 3 As shown in position I, during the process of the sludge pushing the spring stop 122 to move, the spring stop 122 will separate from the screen cylinder 121, and the sludge will be discharged through the gap between the two and fall into the sludge discharge port, as shown in: Figure 3 The position of H in the diagram indicates that the sludge is being concentrated.

[0085] The drive assembly 21 includes a gear rod 213 fixedly connected to the output end of the side wall of the motor 211. The outer wall of the gear rod 213 meshes with the outer wall of the gear ring 212. The inner wall of the sliding ring 215 is provided with a plurality of engagement grooves 217, and the inner walls of the plurality of engagement grooves 217 are slidably connected to the outer wall of the connecting ring 214.

[0086] During the process of the screw rod 114 squeezing the sludge, the starting motor 211 drives the gear rod 213 to rotate. The gear rod 213 meshes with the gear ring 212, causing the gear ring 212 to rotate, which in turn causes the screen cylinder 121 to rotate slowly. The rotation speed of the screen cylinder 121 is lower than that of the screw rod 114. When the screen cylinder 121 rotates, it drives the connecting ring 214 to rotate. The outer wall of the connecting ring 214 contacts the inner wall of the locking groove 217, which in turn drives the sliding ring 215 to rotate.

[0087] The adsorption assembly 22 includes connecting rods 223 fixedly connected to the side wall of piston plate 222. The outer walls of the two connecting rods 223 are slidably connected to the inner wall of the groove 216. A blocking rod 224 is fixedly connected to the side of the two piston plates 222 away from the connecting rods 223.

[0088] The adsorption assembly 22 also includes an exhaust groove 225 opened on the inner wall of the air pressure frame 221, the outer walls of the two blocking rods 224 are slidably connected to the inner wall of the exhaust groove 225, and the inner walls of the two air pressure frames 221 are provided with a drain groove 226.

[0089] During the rotation of the sliding ring 215, the protruding part of the groove 216 contacts the connecting rod 223, which pushes the connecting rod 223 away from the screen cylinder 121, causing the piston plate 222 and the blocking rod 224 to move. When the blocking rod 224 moves into the exhaust groove 225, the side of the piston plate 222 closest to the screen cylinder 121 is in a sealed state, such as: Figure 6 As shown, as the piston plate 222 continues to move, it creates negative pressure within the air pressure frame 221 until the blocking rod 224 separates from the exhaust groove 225. The negative pressure within the air pressure frame 221 then connects with the outside, creating a pressure difference between the inner and outer walls of the screen cylinder 121. This attracts wastewater from the sludge within the screen cylinder 121 towards the screen cylinder 121, accelerating the outflow of wastewater. The outflowing wastewater enters the air pressure frame 221. As the piston plate 222 continues to move, it leaks out the drain groove 226, allowing the wastewater within the air pressure frame 221 to be discharged. By accelerating the flow of wastewater, it quickly flows out of the screen cylinder 121, reducing the accumulation of wastewater within the screen cylinder 121. This effectively prevents the asphalt sludge from becoming too viscous, causing the wastewater to flow out slowly and accumulating a large amount of wastewater within the screen cylinder 121, which would affect the compression of solid matter in the sludge and thus ensure a good concentration effect.

[0090] The pushing assembly 31 includes a pushing rod 313 disposed on the top of the screen cylinder 121. The outer wall of the pushing rod 313 is slidably connected to the inner wall of the two fixed blocks 312. A fixing ring 314 is fixedly connected to the inner wall of the extruder body 111.

[0091] Five spring rods 315 are slidably connected to the inner wall of the fixed ring 314, and the side walls of the five spring rods 315 are in contact with the side wall of the sliding ring 215.

[0092] When the screen cylinder 121 rotates, it drives the convex ring 311 to rotate. As the convex ring 311 continues to rotate, the protruding part of the convex ring 311 will contact the push rod 313, such as: Figure 9 As shown in state J, the push rod 313 moves towards the gear ring 212, and the push rod 313 will contact the sliding ring 215, pushing the sliding ring 215 to move, causing the sliding ring 215 to separate from the connecting ring 214. When the sliding ring 215 moves, it will squeeze the spring rod 315, allowing the spring rod 315 to accumulate rebound force. As the convex ring 311 continues to rotate, the protruding position of the convex ring 311 will separate from the push rod 313. At this time, the pushing force on the sliding ring 215 disappears, and the sliding ring 215 will be blocked by the connecting ring 214. Since the rotation speed of the screen cylinder 121 is relatively slow, as the connecting ring 214 continues to rotate and the size of the engaging groove 217 is large, the protruding position of the connecting ring 214 will align with the engaging groove 217 again.

[0093] The extrusion assembly 32 includes a fixed frame 323 fixedly connected to the inner wall of the fixed ring 314, a rocker plate 324 rotatably connected to the inner wall of the fixed frame 323, and a spring rod 322 slidably connected to the inner wall of the spring stop 122.

[0094] When spring rod 315 moves, the side of spring rod 315 located on the back will contact rocker 324, pushing rocker 324 to rotate. This causes the side of rocker 324 in contact with spring rod 315 to move away from the fixed ring 314, while the other side moves closer to spring rod 322. Since the rotation center of rocker 324 is closer to spring rod 315 and farther away from spring rod 315, according to the lever principle, the longer the lever arm, the greater the distance the endpoint moves. The side farther from the rotation center of rocker 324 will move a longer distance. Therefore, the side closer to spring rod 322 will move a greater distance. During the rotation of the rocker arm 324, the spring rod 322 is squeezed and moved, accumulating rebound force. The spring rod 322 pushes the squeezing block 321 towards the spiral rod 114, squeezing the sludge. The squeezing block 321 actively moves forward, squeezing the sludge and increasing the squeezing force, forcing the water wrapped in the sludge to separate and permeate towards the screen cylinder 121. This effectively prevents the air pressure frame 221 from attracting water from the sludge when the sliding ring 215 separates from the connecting ring 214, thus preventing the continuous and rapid discharge of water from the sludge.

[0095] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0096] A specific application of this embodiment is as follows: When using this invention, the operator feeds the asphalt sludge to be concentrated into the extruder body 111 through the feeding port, for example: Figure 3 As shown in position G, then start motor 113, which drives pulley assembly 112 to rotate. Pulley assembly 112 drives screw rod 114 to rotate. Screw rod 114 rotates, conveying sludge towards spring stop 122. Spring stop 122 blocks the sludge. When the sludge conveyed by screw rod 114 contacts spring stop 122, subsequent sludge pushes the preceding sludge, squeezing spring stop 122 and causing it to move. This squeezing removes water from the sludge. The pressure regulating cover 123 can be moved by rotating the nut. Figure 3 As shown in position F, the pressure regulating cover 123 presses the spring on the side wall of the spring stop 122, adjusting the pressing force of the spring stop 122. Wastewater in the sludge will be filtered through the screen cylinder 121 and enter the extruder body 111. It will then flow from the inclined surface inside the extruder body 111 into the drain outlet and be discharged through the drain outlet. Figure 3 As shown in position I, during the process of the sludge pushing the spring stop 122 to move, the spring stop 122 will separate from the screen cylinder 121, and the sludge will be discharged through the gap between the two and fall into the sludge discharge port, as shown in: Figure 3 As shown by the position of H in the middle, the sludge is concentrated;

[0097] During the sludge compression process of the screw rod 114, the starting motor 211 drives the gear rod 213 to rotate. The gear rod 213 meshes with the gear ring 212, causing the gear ring 212 to rotate, which in turn causes the screen cylinder 121 to rotate slowly. The rotation speed of the screen cylinder 121 is lower than that of the screw rod 114. As the screen cylinder 121 rotates, it drives the connecting ring 214 to rotate. The outer wall of the connecting ring 214 contacts the inner wall of the engaging groove 217, which in turn drives the sliding ring 215 to rotate. During the rotation of the sliding ring 215, the protruding part of the groove 216 contacts the connecting rod 223, pushing the connecting rod 223 away from the screen cylinder 121. This causes the piston plate 222 and the blocking rod 224 to move. When the blocking rod 224 moves into the exhaust groove 225, the side of the piston plate 222 closest to the screen cylinder 121 is in a sealed state. Figure 6 As shown;

[0098] As the piston plate 222 continues to move, it creates negative pressure within the pneumatic frame 221 until the blocking rod 224 separates from the exhaust groove 225. The negative pressure within the pneumatic frame 221 then connects with the outside, creating a pressure difference between the inner and outer walls of the screen cylinder 121. This attracts wastewater from the sludge within the screen cylinder 121 towards the screen cylinder 121, accelerating the outflow of wastewater. The outflowing wastewater enters the pneumatic frame 221. As the piston plate 222 continues to move, it leaks out the drain groove 226, allowing the wastewater within the pneumatic frame 221 to be discharged. By accelerating the flow of wastewater, it quickly flows out of the screen cylinder 121, reducing the accumulation of wastewater within the screen cylinder 121. This effectively prevents the asphalt sludge from becoming too viscous, causing the wastewater to flow out slowly and accumulating a large amount of wastewater within the screen cylinder 121, which would affect the compression of solid matter in the sludge and thus ensure a good concentration effect.

[0099] Secondly, during the continuous rotation of the sliding ring 215, when the recessed position of the drain trough 226 contacts the connecting rod 223 again, it will squeeze the connecting rod 223 to move towards the screen cylinder 121, driving the piston plate 222 and the blocking rod 224 to move. When the piston plate 222 covers the drain trough 226 and the blocking rod 224 re-enters the exhaust trough 225, the piston plate 222 continues to move, squeezing the gas in the air pressure frame 221. At this time, the squeezed gas will be blocked by the blocking rod 224, so the gas pressure will increase until the blocking rod 224 separates from the exhaust trough 225, removing the obstruction to the gas. The high-pressure gas will then spray out towards the screen cylinder 121, back-blowing the screen cylinder 121, clearing the screen cylinder 121, keeping the screen holes of the screen cylinder 121 unobstructed, and effectively preventing the sludge from being too sticky and easily causing the screen holes on the screen cylinder 121 to be blocked, affecting the discharge of sewage.

[0100] Secondly, when the screen cylinder 121 rotates, it will drive the convex ring 311 to rotate. As the convex ring 311 continues to rotate, the protruding part of the convex ring 311 will contact the push rod 313, such as: Figure 9 As shown in state J, the push rod 313 moves towards the gear ring 212, and the push rod 313 will contact the sliding ring 215, pushing the sliding ring 215 to move, so that the sliding ring 215 separates from the connecting ring 214. When the sliding ring 215 moves, it will squeeze the spring rod 315, allowing the spring rod 315 to accumulate rebound force. As the convex ring 311 continues to rotate, the convex position of the convex ring 311 will separate from the push rod 313. At this time, the pushing force on the sliding ring 215 disappears, and the sliding ring 215 will be blocked by the connecting ring 214. Since the rotation speed of the screen cylinder 121 is relatively slow, as the connecting ring 214 continues to rotate and the size of the locking groove 217 is large, the convex position of the connecting ring 214 will align with the locking groove 217 again.

[0101] At this time, the restoring force of spring rod 315 is released, pushing sliding ring 215 back to its original position, causing the engaging groove 217 to re-enter the protruding position of connecting ring 214. As connecting ring 214 rotates, it continues to drive sliding ring 215 to rotate, pushing sliding ring 215 to separate from connecting ring 214. During the separation process, screen cylinder 121 continues to rotate, while sliding ring 215 stops moving, causing piston plate 222 to stop moving. Then, connecting ring 214 drives sliding ring 215 to rotate again, causing piston plate 222 to reciprocate, changing the position of screen cylinder 121 and connecting ring 214. The contact area between the negative pressure and high pressure generated inside the air pressure frame 221 effectively prevents the sliding ring 215 from rotating synchronously with the screen cylinder 121. Because the protruding and recessed positions of the groove 216 will regularly squeeze the connecting rod 223 to move, when negative pressure and high pressure are generated inside the air pressure frame 221, they will contact the same position of the screen cylinder 121. This makes it difficult to clean the negative pressure adsorption position of the air pressure frame 221 when the high pressure gas is ejected. This avoids the negative pressure or high pressure acting on the same area of ​​the screen cylinder 121 for a long time, which would cause blockage of the negative pressure adsorption area of ​​the screen cylinder 121.

[0102] Secondly, when spring rod 315 moves, the spring rod 315 on the back side will contact rocker 324, pushing rocker 324 to rotate. This causes the side of rocker 324 in contact with spring rod 315 to move away from the fixed ring 314, and the other side to move closer to spring rod 322. Since the rotation center of rocker 324 is closer to spring rod 315 and farther away from spring rod 315, according to the lever principle, the longer the lever arm, the greater the distance the endpoint moves. The side farther from the rotation center of rocker 324 will move a longer distance. Therefore, the side closer to spring rod 322 will move a greater distance. During the rotation of the rocker arm 324, the spring rod 322 is squeezed and moved, accumulating rebound force. The spring rod 322 pushes the squeezing block 321 towards the spiral rod 114, squeezing the sludge. The squeezing block 321 actively moves forward, squeezing the sludge and increasing the squeezing force, forcing the water wrapped in the sludge to separate and permeate towards the screen cylinder 121. This effectively prevents the air pressure frame 221 from attracting water from the sludge when the sliding ring 215 separates from the connecting ring 214, thus preventing the continuous and rapid discharge of water from the sludge.

[0103] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An asphalt sludge thickening device, comprising an extruder body (111), wherein a pulley assembly (112) is provided on the side wall of the extruder body (111), and a motor (113) is fixedly connected to the side wall of the extruder body (111), wherein the output end of the motor (113) is fixedly connected to the side wall of the pulley assembly (112), characterized in that, Also includes: A concentration mechanism (1) is provided with a spiral assembly (11) fixedly installed on the top of the concentration mechanism (1), and a separation assembly (12) is rotatably installed on the inner wall of the concentration mechanism (1). The spiral assembly (11) is used to squeeze asphalt sludge. Dewatering mechanism (2), which is installed on the inner wall of the concentration mechanism (1) to accelerate the discharge of wastewater from the asphalt sludge; as well as The conversion mechanism (3) is located on the inner wall of the concentration mechanism (1) and is used to change the dehydration position; The inner wall of the extruder body (111) is rotatably connected to a screen cylinder (121), the outer wall of the screen cylinder (121) is fixedly connected to a connecting ring (214), the inner wall of the spiral assembly (11) is slidably connected to a sliding ring (215), and the inner wall of the sliding ring (215) is provided with a groove (216). The process involves feeding asphalt sludge into the body of the extruder (111), then extruding the asphalt sludge through the thickening mechanism (1) to squeeze out the water in the sludge. After that, the water in the sludge is quickly discharged from the screen cylinder (121) through the dewatering mechanism (2). Finally, the dewatering position of the dewatering mechanism (2) is changed through the conversion mechanism (3). The concentration mechanism (1) includes: A spiral assembly (11) is fixedly installed on the outer wall of the spiral assembly (111) to the top of the extruder body (111) for extruding asphalt sludge; The separation component (12) is rotatably disposed on the outer wall of the separation component (12) and the inner wall of the extruder body (111), and is used to remove wastewater from the asphalt sludge; In this process, the asphalt sludge is squeezed by the spiral component (11) to squeeze out the sewage in the sludge, and then the sewage is separated from the sludge by the separation component (12) to concentrate the sludge. The dehydration mechanism (2) includes: The drive assembly (21) is fixedly mounted on the side wall of the extruder body (111) by a fastener and is used to rotate the screen cylinder (121); The fasteners include a second motor (211) fixedly connected to the side wall of the extruder body (111), and a gear ring (212) fixedly connected to the outer wall of the screen cylinder (121). Adsorption component (22), which is fixedly installed on the inner wall of the extruder body (111) by a support member, is used to attract the sewage in the screen cylinder (121) to flow out; The support includes two pneumatic frames (221) fixedly connected to the inner wall of the extruder body (111), and a piston plate (222) is slidably connected to the inner wall of each of the two pneumatic frames (221). In this process, the screen cylinder (121) is driven to rotate by the drive component (21). During the rotation of the screen cylinder (121), the sludge attached to the inner wall of the screen cylinder (121) will rotate synchronously with the screen cylinder (121). The negative pressure generated by the adsorption component (22) will attract the sewage in the sludge to be discharged quickly.

2. The asphalt sludge thickening device according to claim 1, characterized in that: The conversion mechanism (3) includes: A pushing component (31) is fixedly installed on the outer wall of the screen cylinder (121) by a connector, and is used to push the sliding ring (215) to separate from the connecting ring (214); The connector includes a protruding ring (311) fixedly connected to the outer wall of the screen cylinder (121), and two fixing blocks (312) fixedly connected to the inner wall of the extruder body (111). The extrusion assembly (32) is slidably disposed on the inner wall of the screen cylinder (121) via a sliding member, and is used to extrude sludge; The sliding component includes a pressing block (321) that is slidably connected to the inner wall of the screen cylinder (121), and a spring rod (322) is fixedly connected to the side wall of the pressing block (321). When the screen cylinder (121) rotates, it will drive the push component (31) to rotate, so that the push component (31) pushes the sliding ring (215) to separate from the connecting ring (214), changing the contact position between the adsorption component (22) and the screen cylinder (121). When the push component (31) moves, it will cause the squeezing block (321) to move and squeeze the sludge.

3. The asphalt sludge thickening device according to claim 2, characterized in that: The spiral assembly (11) includes a spiral rod (114) rotatably connected to the inner wall of the extruder body (111), and the outer wall of the spiral rod (114) is fixedly connected to the inner wall of the pulley assembly (112). The separation assembly (12) includes a spring stop (122) slidably connected to the inner wall of the extruder body (111), and a pressure regulating cover (123) is provided on the side wall of the extruder body (111), with the inner wall of the pressure regulating cover (123) slidably connected to the outer wall of the spring stop (122). The asphalt sludge that needs to be concentrated is put into the body of the extruder (111), and then the motor (113) is started to drive the pulley group (112) to rotate. The screw rod (114) is rotated through the pulley group (112) to squeeze the asphalt sludge.

4. The asphalt sludge thickening device according to claim 3, characterized in that: The drive assembly (21) includes a gear rod (213) fixedly connected to the output end of the side wall of the motor (211). The outer wall of the gear rod (213) meshes with the outer wall of the gear ring (212). The inner wall of the sliding ring (215) is provided with a plurality of engaging grooves (217). The inner walls of the plurality of engaging grooves (217) are slidably connected to the outer wall of the connecting ring (214). When the screw rod (114) squeezes the asphalt sludge, the second motor (211) is started, which causes the gear rod (213) and the connecting ring (214) to rotate, which drives the screen cylinder (121) to rotate, causing the connecting ring (214) to rotate. Through the protruding position of the outer wall of the connecting ring (214), the sliding ring (215) is driven to rotate.

5. The asphalt sludge thickening device according to claim 4, characterized in that: The adsorption assembly (22) includes connecting rods (223) fixedly connected to the side wall of the piston plate (222). The outer walls of the two connecting rods (223) are slidably connected to the inner wall of the groove (216). A blocking rod (224) is fixedly connected to the side of the two piston plates (222) away from the connecting rods (223).

6. The asphalt sludge thickening device according to claim 5, characterized in that: The adsorption assembly (22) also includes an exhaust groove (225) opened on the inner wall of the pressure frame (221), the outer walls of the two blocking rods (224) are slidably connected to the inner wall of the exhaust groove (225), and the inner walls of the two pressure frames (221) are provided with a drain groove (226). When the sliding ring (215) rotates, the groove (216) will squeeze the connecting rod (223) to move, causing the connecting rod (223) to move away from the screen cylinder (121), which will drive the piston plate (222) to move, creating negative pressure in the air pressure frame (221) and attracting the liquid in the sludge in the screen cylinder (121) to be discharged quickly.

7. The asphalt sludge thickening device according to claim 6, characterized in that: The pushing assembly (31) includes a pushing rod (313) disposed at the top of the screen cylinder (121). The outer wall of the pushing rod (313) is slidably connected to the inner wall of two fixed blocks (312). A fixing ring (314) is fixedly connected to the inner wall of the extruder body (111). Five spring rods (315) are slidably connected to the inner wall of the fixed ring (314), and the side walls of the five spring rods (315) are in contact with the side wall of the sliding ring (215). When the screen cylinder (121) rotates, it will drive the convex ring (311) to rotate, causing the convex position of the convex ring (311) to press the push rod (313) to move, causing the push rod (313) to push the sliding ring (215) to separate from the connecting ring (214), changing the adsorption position of the air pressure frame (221) and the screen cylinder (121).

8. The asphalt sludge thickening device according to claim 7, characterized in that: The extrusion assembly (32) includes a fixed frame (323) fixedly connected to the inner wall of the fixed ring (314), a rocker plate (324) rotatably connected to the inner wall of the fixed frame (323), and the outer wall of the spring rod (322) slidably connected to the inner wall of the spring stop (122). When the sliding ring (215) moves, it will squeeze the first spring rod (315), causing the first spring rod (315) located on the back to squeeze the rocker (324) to rotate, causing the rocker (324) to squeeze the second spring rod (322) and the squeezing block (321), causing the squeezing block (321) to squeeze the sludge.

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