An oil sludge pyrolysis residue-based environment-friendly brick and a preparation method thereof

Abstract

The application provides an oil sludge pyrolysis residue-based environment-friendly brick and a preparation method thereof. The preparation method comprises the following steps: adding the oil sludge into a pyrolysis furnace, pyrolyzing the oil sludge at high temperature, separating combustible gas and liquid fuel, and leaving the residual carbonaceous material as a base material on a pyrolysis disc; an electric door uniformly controls the opening of a residue discharge port on a conveying pipe corresponding to the pyrolysis disc, the residue base material left on the pyrolysis disc is sent into the conveying pipe through the residue discharge port, and the residue base material is sent into a mixing box through the conveying pipe; when the third electric push rod moves each time, the connecting frame drives the top column to move, the top column corresponds to the last group of the four groups of square frames, after the top column is in extrusion contact with the baffle of the last group of square frames, the two baffles carry the internally formed bricks out of the square frame, the spring expansion plate is elongated, the baffle at the other end is limited, the pyrolysis furnace can be loaded into the mixing box at the same time, the bricks prepared in the square frame are sent out, and the efficient preparation process is realized.

Description

Technical Field

[0001] This disclosure relates to the field of oil sludge pyrolysis technology, and in particular to an environmentally friendly brick based on oil sludge pyrolysis residue and its preparation method. Background Technology

[0002] Oil sludge pyrolysis is an environmentally friendly process that converts oily sludge into pyrolyzed oil, slag, and non-condensable gas through high-temperature pyrolysis technology. Its core process includes four main steps: pretreatment, thermal pyrolysis, condensation separation, and tail gas treatment. The residue base material produced by sludge pyrolysis can be used for brick making after being discharged. The comprehensive utilization of the residue base material for solid waste requires the use of special environmental protection equipment. The comprehensive utilization of solid waste also includes the treatment and comprehensive utilization of domestic waste and road waste, the recycling of construction and transportation waste, and the comprehensive utilization of construction waste, bridge and rail demolition waste.

[0003] In the existing technology, the pyrolysis residue base material needs to be mixed with clay in a certain proportion, and then prepared into bricks after stirring, pressing and calcining. This process involves the transfer of pyrolysis base material and the mixing of clay, as well as the preparation and delivery of bricks. It requires the operation of multiple equipment, and the transfer in the middle takes a lot of time, which affects the efficiency of recycling the residue base material. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide an environmentally friendly brick based on sludge pyrolysis residue and a method for preparing the same.

[0006] To achieve the above objectives, this disclosure provides a method for preparing environmentally friendly bricks based on sludge pyrolysis residue, the method comprising the following steps: (1) The oil sludge is added into the pyrolysis furnace. The oil sludge is cracked at high temperature to separate combustible gas and liquid fuel. The remaining carbonaceous material is left on the cracking plate as a base material. (2) The electric door opens the slag discharge port on the conveying pipe corresponding to the pyrolysis plate under unified control. The residual base material left on the pyrolysis plate is sent into the conveying pipe through the slag discharge port and then sent into the mixing box along the inside of the conveying pipe. (3) Clay can be added from the feeding pipe and mixed with the pyrolysis residue sent in by the conveying pipe in the mixing box in a certain proportion. The brick mixture that has been mixed in the mixing box is sent out from the discharge pipe. (4) The fourth set of boxes moves alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, the needle continues to rotate to compress and shape the mixture between the mixing box and the oven. (5) The square frame rotates into the baking area, and the upper and lower ovens are combined to wrap the inner square frame. The bricks inside the square frame are baked by heating. (6) When the frame is rotated to the delivery position, the two baffles at both ends of the frame carry the internally formed bricks out of the frame.

[0007] Optionally, in step (2), four slag discharge ports are equidistantly opened on the surface of the conveying pipe corresponding to the pyrolysis plate, and an electric door is installed on the outside of the slag discharge ports. Four scrapers are equidistantly slidably installed on the outer edge of the pyrolysis plate, and the bottom of the scrapers slides in contact with the surface of the pyrolysis plate. An elastic band is fixed between adjacent scrapers. A first electric push rod is fixed on the outer wall of the pyrolysis furnace corresponding to the position of each scraper, and the extended end of the first electric push rod is fixedly connected to the scraper. After the electric door opens the slag discharge port, the first electric push rod drives the scraper to move along the surface of the pyrolysis plate toward the slag discharge port of the conveying pipe, thereby sending the residual base material left on the pyrolysis plate into the inside of the conveying pipe.

[0008] Optionally, in step (2), a push plate is slidably connected inside the conveying pipe, a ring rope extends through the inside of the conveying pipe, the push plate is fixed on the ring rope, a guide cylinder is fixed at one end of the conveying pipe that extends out of the top of the pyrolysis furnace, and the ring rope extends through the inside of the guide cylinder. A base is provided at the bottom of one side of the mixing box, a third electric push rod is fixed at one end of the base facing the pyrolysis furnace, and a moving frame is fixed at the extended end of the third electric push rod. Two electric clamps are slidably installed inside the moving frame at the upper and lower ends of the ring rope. The two electric clamps are clamped on the ring rope. The third electric push rod pushes the electric clamps and the ring rope to move horizontally. The third electric push rod resets the moving frame, and the ring rope is clamped again by the electric clamps. The rope is pushed forward a distance again to discharge the residue generated by the pyrolysis inside the conveying pipe.

[0009] Optionally, in step (3), a feeding pipe is provided at the other end of the mixing box away from the conveying pipe. A stirring frame is rotatably installed on the inner wall of the top of the mixing box through a bearing. A first motor is fixed on the top of the mixing box, and the output end of the first motor is fixedly connected to the stirring frame. Clay is added through the feeding pipe, and the pyrolysis residue sent in by the conveying pipe is mixed and stirred in the mixing box in a certain proportion by the stirring frame driven by the first motor.

[0010] Optionally, in step (3), a delivery pipe is provided at the bottom of the mixing box, a circular plate is provided at the top of the mixing box, two second electric push rods are fixed at the top of the mixing box, and the extended ends of the second electric push rods are fixedly connected to the circular plate. A movable notch is provided on the surface of the circular plate corresponding to the position of the stirring rack. The second electric push rod pushes the circular plate down. Because the movable notch is provided on the surface of the circular plate, the circular plate can pass through the stirring rack and deliver the brick mixture that has been mixed inside the mixing box out through the delivery pipe.

[0011] Optionally, in step (4), a base is provided at the bottom of one side of the mixing box, and a frame assembly is provided at the top of the base. The frame assembly includes a third motor, the output end of the third motor is fixed on the base, and a rotating frame is fixed at the output end of the third motor. Four square frames are fixed at equal intervals at the top of the rotating frame, and an inlet pipe is provided at the top of the square frame. Baffles are provided at the front and rear ends of the square frame. An extrusion plate is provided inside the square frame. A bracket is slidably inserted into the bottom of the square frame, and the bracket is fixedly connected to the extrusion plate. The third motor drives the rotating frame to rotate, and the four sets of square frames move alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, the needle continues to rotate to compress and shape the mixture between the mixing box and the oven.

[0012] Optionally, in step (5), a vertical frame is fixed at the end of the base away from the pyrolysis furnace, and a bidirectional screw is rotatably installed inside the vertical frame through a bearing. A second motor is fixed at the top of the vertical frame, and the output end of the second motor is fixedly connected to the bidirectional screw. Two screw seats are threaded onto the surface of the bidirectional screw. An upper oven is fixed on the outer surface of the screw seat at the upper end of the vertical frame, and a lower oven is fixed on the outer surface of the screw seat at the lower end of the vertical frame. The second motor drives the bidirectional screw to rotate, and the upper oven and the lower oven are combined to wrap the inner square frame. The bricks inside the square frame are baked by heating and baking.

[0013] Optionally, in step (4), a pressure frame is fixed on one side of the two screw seats. The pressure frame corresponds to the top and bottom of the square frame. The pressure frame is provided with a pressing circular plate at the position of the inlet tube. The pressure frame is provided with vertical limiting plates on both sides of the square frame. When the upper oven and the lower oven move, the two pressure frames will also move synchronously. The top of the square frame between the mixing box and the oven corresponds to the two pressure frames. When the upper oven and the lower oven are combined, the pressing circular plate provided at the position of the inlet tube is inserted into the tube. At the same time, the lower pressure frame presses the insert frame, so that the pressing plate moves from the bottom to the top, pressing and shaping the bricks inside the square frame, keeping it synchronized with the baking of the bricks.

[0014] Optionally, in step (6), a connecting frame is fixed on one side of the extended end of the third electric push rod, and a top column is fixed on one side of the connecting frame located on the vertical frame. The top column corresponds to the position of the square frame baffle. Each time the extended end of the third electric push rod moves, the connecting frame drives the top column to move. The top column corresponds to the last group of four square frames. After the top column and the baffle of the last group of square frames are pressed and contacted, the two baffles carry the internally formed bricks out of the square frame.

[0015] An environmentally friendly brick based on sludge pyrolysis residue, wherein the environmentally friendly brick is composed of clay and residue base material, wherein the residue addition is 15%, the water addition is 13%, and the compressive stress is 30MPa.

[0016] The technical solution provided in this disclosure may include the following beneficial effects: 1. The present invention uses a first electric push rod to drive a scraper to move along the surface of the pyrolysis disc toward the slag discharge port of the conveying pipe, thereby sending the residual base material left on the pyrolysis disc into the conveying pipe. The pusher is driven by a ring rope to move along the inside of the conveying pipe, which can intermittently send the residual base material into the mixing box, automatically send out the residual base material generated by pyrolysis, and then complete the mixing with clay and subsequent preparation of bricks. 2. In this invention, a first motor drives a stirring frame to mix and stir the residue and clay inside the mixing box. Then, a second electric push rod pushes a circular plate down. Because there is a moving notch on the surface of the circular plate, the circular plate can pass through the stirring frame, thereby sending the brick mixture that has been mixed inside the mixing box out through the delivery pipe. Both the delivery pipe and the feeding pipe are equipped with valves. Clay can be added to the feeding pipe and mixed with the pyrolysis residue sent in through the conveying pipe in a certain proportion inside the mixing box. Then, it is sequentially sent into each square to prepare bricks. 3. In this invention, a third motor drives the rotating frame to rotate, and four sets of square frames move alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, the needle continues to rotate, compressing and shaping the mixture between the mixing box and the oven. After entering the upper and lower ovens for baking, the brick is finally pushed out from the position of the last set of square frames from the position of one side baffle. Here, the two baffles are slidably installed inside the square frame by springs. The spring extension plates on both sides play a role in limiting the baffles, which can prevent the baffles from moving outward to a certain extent. Under the action of external force, the two baffles can move and be sent out together with the bricks. After the bricks are sent out, the baffles return to the two ends of the square frame. 4. The second motor of this invention drives the bidirectional screw to rotate. The two screw seats are threadedly engaged with the bidirectional screw and move along the inside of the vertical frame, separating or merging the upper and lower ovens. When separated, the four sets of square frames can be rotated alternately to enter the baking area. Then the upper and lower ovens are merged together to wrap the inner square frames. The bricks inside the square frames are baked by heating. As the upper and lower ovens move, the two pressure frames also move synchronously. The top of the square frame between the mixing box and the oven corresponds to the two pressure frames. When the upper and lower ovens are merged, the extrusion circular plate set at the position of the pressure frame corresponding to the entry tube is inserted into the tube. At the same time, the lower pressure frame extrudes the insertion frame, so that the extrusion plate moves from the bottom to the top, extruding and shaping the bricks inside the square frames, keeping the baking process synchronized with the bricks. 5. In this invention, each time the third electric push rod extends, the connecting frame drives the top column to move. The top column corresponds to the last set of four sets of square frames. After the top column and the baffle of the last set of square frames are pressed and contacted, the two baffles carry the internally formed bricks out of the square frames. The spring telescopic plate extends and limits the baffle at the other end. This can realize that while the pyrolysis furnace is feeding materials into the mixing box, the bricks prepared inside the square frames are sent out, thus achieving an efficient preparation process. 6. This invention uses two electric clamping blocks to hold the ring rope. After moving the ring rope at the bottom of the guide cylinder to the bottom of the conveying pipe, the electric clamping blocks release the clamping blocks from the ring rope. Then, the moving frame is reset by the third electric push rod, and the electric clamping blocks are used again to hold the ring rope and advance it a certain distance again, thereby completing the intermittent movement of the ring rope. The movement of the ring rope will also drive the push plate to move along the inside of the conveying pipe, discharging the residue generated by the pyrolysis inside the conveying pipe. The amount of residue discharged can be controlled according to the movement distance of the ring rope.

[0017] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the preparation process of an environmentally friendly brick based on sludge pyrolysis residue according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the overall structure of a method for preparing environmentally friendly bricks based on sludge pyrolysis residue, as proposed in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the internal structure of the pyrolysis furnace in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 4This is a schematic diagram of the surface structure of the pyrolysis disk in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 5 This is a schematic diagram of the base surface structure in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 6 This is a schematic diagram of the internal structure of the mixing box in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 7 This is a schematic diagram of the frame component structure in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 8 This is a schematic diagram of the internal structure of the vertical frame in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; Figure 9 This is a schematic diagram of the outer end structure of a block in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue, as proposed in an embodiment of this disclosure; Figure 10 This is a schematic diagram of the internal structure of a box in a method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to an embodiment of this disclosure; As shown in the figure: 1. Pyrolysis furnace; 11. Conveying pipe; 12. Exhaust pipe; 13. Drain pipe; 14. Cracking disc; 15. First electric push rod; 16. Electric door; 17. Slag discharge port; 18. Push plate; 19. Scraper; 110. Elastic belt; 111. Guide cylinder; 112. Ring rope; 113. Moving frame; 114. Electric clamping block; 2. Mixing box; 21. Feeding pipe; 22. First motor; 23. Second electric push rod; 24. Stirring frame; 25. Circular plate; 26. Moving notch; 27. Discharge pipe; 3. Base; 31. Third electric push rod; 32. Connecting frame; 33. Top column; 4. Upper oven; 41. Lower oven; 42. Vertical frame; 43. Second motor; 44. Double-acting screw; 45. Screw seat; 5. Enclosure assembly; 51. Third motor; 52. Rotating frame; 53. Square frame; 54. Inlet pipe; 55. Pressure frame; 56. Baffle; 57. Spring telescopic plate; 58. Insert frame; 59. Return spring; 510. Extrusion plate. Detailed Implementation

[0019] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] An environmentally friendly brick based on sludge pyrolysis residue is provided. The brick is composed of clay and residue base material, wherein the residue content is 15%, the water content is 13%, the compressive stress is 30MPa, and the compressive strength of the resulting permeable brick reaches 32.20MPa (Cc30 standard) and the permeability coefficient is 1.80×10⁻²cm / s.

[0021] like Figure 1 As shown, a method for preparing environmentally friendly bricks based on sludge pyrolysis residue includes the following steps: (1) The oil sludge is added into the pyrolysis furnace. The oil sludge is cracked at high temperature to separate combustible gas and liquid fuel. The remaining carbonaceous material is left on the cracking plate as a base material. (2) The electric door opens the slag discharge port on the conveying pipe corresponding to the pyrolysis plate under unified control. The residual base material left on the pyrolysis plate is sent into the conveying pipe through the slag discharge port and then sent into the mixing box along the inside of the conveying pipe. (3) Clay can be added from the feeding pipe and mixed with the pyrolysis residue sent in by the conveying pipe in the mixing box in a certain proportion. The brick mixture that has been mixed in the mixing box is sent out from the discharge pipe. (4) The fourth set of boxes moves alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, the needle continues to rotate to compress and shape the mixture between the mixing box and the oven. (5) The square frame rotates into the baking area, and the upper and lower ovens are combined to wrap the inner square frame. The bricks inside the square frame are baked by heating. (6) When the frame is rotated to the delivery position, the two baffles at both ends of the frame carry the internally formed bricks out of the frame.

[0022] like Figure 2 , Figure 3 and Figure 4As shown in this embodiment, the pyrolysis furnace 1 has an exhaust pipe 12 at its top and a drain pipe 13 at its bottom. A conveying pipe 11 is fixed at the axis of the pyrolysis furnace 1. A pyrolysis disk 14 is fixed inside the pyrolysis furnace 1. The conveying pipe 11 extends from the axis of the pyrolysis disk 14. Four slag discharge ports 17 are equidistantly provided on the surface of the conveying pipe 11 corresponding to the surface through which the pyrolysis disk 14 extends. An electric door 16 is installed on the outer side of the slag discharge ports 17. Four scrapers 19 are equidistantly slidably installed on the outer edge of the pyrolysis disk 14. The bottom of plate 19 slides in contact with the surface of the pyrolysis disk 14. An elastic band 110 is fixed between adjacent scrapers 19. A first electric push rod 15 is fixed on the outer wall of the pyrolysis furnace 1 at the position corresponding to each scraper 19, and the extended end of the first electric push rod 15 is fixedly connected to the scraper 19. A push plate 18 is slidably connected inside the conveying pipe 11. A ring rope 112 extends through the inside of the conveying pipe 11, and the push plate 18 is fixed to the ring rope 112. A guide cylinder 111 is fixed to one end of the conveying pipe 11 that extends out of the top of the pyrolysis furnace 1, and the ring rope... 112 passes through the inside of the guide cylinder 111. The pyrolysis furnace 1 of this scheme is based on the same principle as the equipment used in the prior art for oil sludge pyrolysis. The oil sludge is added into the pyrolysis furnace 1, where it is pyrolyzed at high temperature, separating combustible gas and liquid fuel. The remaining carbonaceous material is left on the pyrolysis plate 14 as a base material. With proper heat insulation protection, the four electric doors 16 can be opened under unified control, exposing the slag discharge port 17. Then, the first electric push rod 15 drives the scraper 19 to move along the surface of the pyrolysis plate 14 toward the slag discharge port 17 of the conveying pipe 11, thereby... The residue base material remaining on the pyrolysis plate 14 is fed into the conveying pipe 11. The pusher plate 18 is driven by the ring rope 112 to move along the inside of the conveying pipe 11, which can intermittently feed the residue base material into the mixing box 2. The residue base material generated by pyrolysis is automatically discharged, and then the mixing with clay and subsequent brick preparation are completed. Here, the elastic band 110 is an arc structure in the figure, but it is actually a straight line. The arc plate moves towards the center of the pyrolysis plate 14 and the four scrapers 19 gradually approach. The elastic band 110 contracts and pushes the residue in the moving path towards the slag discharge port 17.

[0023] like Figure 2 and Figure 6As shown, in some embodiments, a mixing box 2 is fixed to one side of the top of the pyrolysis furnace 1, and the top side of the mixing box 2 is fixedly connected to the conveying pipe 11. A feeding pipe 21 is provided at the other end of the mixing box 2 away from the conveying pipe 11. A stirring frame 24 is rotatably installed on the inner wall of the top of the mixing box 2 through a bearing. A first motor 22 is fixed to the top of the mixing box 2, and the output end of the first motor 22 is fixedly connected to the stirring frame 24. A discharge pipe 27 is provided at the bottom of the mixing box 2. A circular plate 25 is provided at the top of the mixing box 2. Two second electric push rods 23 are fixed to the top of the mixing box 2, and the extended ends of the second electric push rods 23 are fixedly connected to the circular plate 25. A movable notch 26 is provided on the surface of the circular plate 25 corresponding to the position of the stirring frame 24.

[0024] Understandably, the first motor 22 drives the stirring frame 24 to mix and stir the residue and clay inside the mixing box 2. Then, the second electric push rod 23 pushes the circular plate 25 down. Because the circular plate 25 has a moving notch 26 on its surface, the circular plate 25 can pass through the stirring frame, thereby sending the brick mixture that has been mixed inside the mixing box 2 out through the delivery pipe 27. Here, both the delivery pipe 27 and the feeding pipe 21 are equipped with valves. Clay can be added to the feeding pipe 21 and mixed and stirred with the pyrolysis residue sent in by the conveying pipe 11 inside the mixing box 2 in a certain proportion. Then, it is sequentially sent into each square 53 to be made into bricks.

[0025] like Figure 5 , Figure 7 , Figure 9 and Figure 10 As shown, in some embodiments, a base 3 is provided at the bottom of one side of the mixing box 2, and a frame assembly 5 is provided at the top of the base 3. The frame assembly 5 includes a third motor 51, the output end of the third motor 51 is fixed on the base 3, and a rotating frame 52 is fixed at the output end of the third motor 51. Four square frames 53 are fixed at equal intervals on the top of the rotating frame 52, and an inlet pipe 54 is provided on the top of the square frames 53. Baffles 56 are provided at the front and rear ends of the square frames 53, and two sets of spring telescopic plates 57 are fixed on both sides of the square frames 53. The two ends of the spring telescopic plates 57 are in contact with the two baffles 56. An extrusion plate 510 is provided inside the square frame 53. A bracket 58 is slidably inserted into the bottom of the square frame 53, and the bracket 58 is fixedly connected to the extrusion plate 510. A return spring 59 is sleeved on the surface of the two insert rods of the bracket 58, and the two ends of the return spring 59 are fixedly connected to the bracket 58 and the square frame 53.

[0026] Understandably, the third motor 51 drives the rotating frame 52 to rotate, and the four sets of square frames 53 move alternately to the bottom of the mixing box 2 to receive the mixture that has been stirred inside the mixing box 2. Then, following the needle's rotation, the mixture is compressed and shaped between the mixing box 2 and the oven. After entering the upper oven 4 and the lower oven 41 for baking, the brick is finally pushed out from the position of the last set of square frames 53 from the position of the side baffle 56. Here, the two baffles 56 are slidably installed inside the square frame 53 by springs. The spring telescopic plates 57 on both sides play the role of limiting the baffles 56, which can prevent the baffles 56 from moving outward to a certain extent. Under the action of external force, the two baffles 56 can move and be sent out together with the brick. After the brick is sent out, the baffles 56 return to both ends of the square frame 53.

[0027] like Figure 7 and Figure 8 As shown, in some embodiments, a vertical frame 42 is fixed to the end of the base 3 away from the pyrolysis furnace 1, and a bidirectional screw 44 is rotatably installed inside the vertical frame 42 via a bearing. A second motor 43 is fixed to the top of the vertical frame 42, and the output end of the second motor 43 is fixedly connected to the bidirectional screw 44. Two screw seats 45 are threaded onto the surface of the bidirectional screw 44. An upper oven 4 is fixed to the outer surface of the screw seat 45 at the upper end of the vertical frame 42, and a lower oven 41 is fixed to the outer surface of the screw seat 45 at the lower end of the vertical frame 42. A pressure frame 55 is fixed to one side of the two screw seats 45. The pressure frame 55 corresponds to the top and bottom of the square frame 53. A pressing circular plate is provided at the position of the pressure frame 55 at the inlet pipe 54. Vertical limiting plates are provided on both sides of the pressure frame 55 corresponding to the square frame 53.

[0028] It should be noted that the second motor 43 drives the bidirectional screw 44 to rotate, and the two screw seats 45 are threadedly engaged with the bidirectional screw 44 to move along the inside of the vertical frame 42, separating or merging the upper oven 4 and the lower oven 41. When separated, the four sets of square frames 53 can rotate alternately to enter the baking area. Then the upper oven 4 and the lower oven 41 merge together to wrap the inner square frame 53, and bake the bricks inside the square frame 53 by heating. As the upper oven 4 and the lower oven 41 move, the two pressure frames 55 also move synchronously. The top of the square frame 53 located between the mixing box 2 and the oven corresponds to the two pressure frames 55. When the upper oven 4 and the lower oven 41 merge, the extrusion circular plate set at the position of the pressure frame 55 corresponding to the entry tube 54 is inserted into the tube 54. At the same time, the lower pressure frame 55 presses the insert 58, so that the extrusion plate 510 moves from the bottom to the top, extruding and shaping the bricks inside the square frame 53, keeping it synchronized with the baking of the bricks.

[0029] like Figure 7 and Figure 8As shown, in some embodiments, a third electric push rod 31 is fixed to one end of the base 3 facing the pyrolysis furnace 1, and a movable frame 113 is fixed to the extended end of the third electric push rod 31. Two electric clamping blocks 114 are slidably installed inside the movable frame 113 at the upper and lower ends of the ring rope 112. The two electric clamping blocks 114 are clamped on the ring rope 112. A connecting frame 32 is fixed to one side of the extended end of the third electric push rod 31, and a top column 33 is fixed to one side of the connecting frame 32 located on the vertical frame 42. The top column 33 corresponds to the position of the baffle 56 of the square frame 53.

[0030] It should be noted that the electric clamping blocks 114 can be understood as small bidirectional electric push rods fixedly connected to the clamping blocks and installed on both sides of the moving frame 113. The ring rope 112 can be clamped by the two electric clamping blocks 114. After the ring rope 112 at the bottom of the guide cylinder 111 is moved to the bottom of the conveying pipe 11, the electric clamping blocks 114 release the clamping of the ring rope 112. Then, the moving frame 113 is reset by the third electric push rod 31, and the ring rope 112 is clamped by the electric clamping blocks 114 again, and pushed forward a distance again, thereby completing the intermittent movement of the ring rope 112. The movement of the ring rope 112 will also drive the push plate 18. Moving along the inside of the conveying pipe 11, the residue generated by the pyrolysis inside the conveying pipe 11 is discharged. Each time the third electric push rod 31 moves, the connecting frame 32 drives the top column 33 to move. The top column 33 corresponds to the last set of four sets of square frames 53. After the top column 33 and the baffle 56 of the last set of square frames 53 are pressed into contact, the two baffles 56 carry the internally formed bricks out of the square frames 53. The spring telescopic plate 57 extends and limits the baffle 56 at the other end. This can realize that while the pyrolysis furnace 1 feeds the material into the mixing box 2, the bricks prepared inside the square frames 53 are sent out, realizing an efficient preparation process.

[0031] Working principle: In operation, oil sludge is added to the pyrolysis furnace 1. The oil sludge is pyrolyzed at high temperature, separating combustible gas and liquid fuel. The remaining carbonaceous material is retained on the pyrolysis plate 14 as a base material. With proper heat insulation, the four electric doors 16 can be opened under unified control, exposing the slag discharge port 17. Then, the first electric push rod 15 drives the scraper 19 to move along the surface of the pyrolysis plate 14 toward the slag discharge port 17 of the conveying pipe 11, thereby feeding the residual base material remaining on the pyrolysis plate 14 into the conveying pipe 11. The push plate 18 is moved along the conveying pipe 11 by the ring rope 112, which can intermittently feed the residual base material into the mixing box 2. The first motor 22 drives the stirrer 24 to mix and stir the residue and clay inside the mixing box 2. Then, the second electric push rod 23 pushes the circular plate 25 down. Because the circular plate 25 has a moving notch 26 on its surface, it can pass through the mixing frame, thereby sending the brick mixture that has been mixed inside the mixing box 2 out through the delivery pipe 27. Both the delivery pipe 27 and the feeding pipe 21 are equipped with valves. Clay can be added to the feeding pipe 21 and mixed with the pyrolysis residue sent in by the conveying pipe 11 in a certain proportion inside the mixing box 2. Then, it is sequentially sent into each square frame 53 to be made into bricks. The third motor 51 drives the rotating frame 52 to rotate, and the four sets of square frames 53 move alternately to the bottom of the mixing box 2 to receive the mixture that has been mixed inside the mixing box 2. Then, the needle continues to rotate, and the mixture is mixed between the mixing box 2 and the oven. The material is compressed and shaped, then baked inside the upper oven 4 and lower oven 41. Finally, at the last set of squares 53, the brick is pushed out from the position of one side baffle 56. Here, the two baffles 56 are slidably installed inside the squares 53 by springs. The spring-loaded telescopic plates 57 on both sides limit the movement of the baffles 56, preventing them from moving outward to a certain extent. Under external force, the two baffles 56 can move and be delivered together with the brick. After the brick is delivered, the baffles 56 return to both ends of the squares 53. The second motor 43 drives the bidirectional screw 44 to rotate. The two screw seats 45 are threadedly engaged with the bidirectional screw 44 and move along the inside of the vertical frame 42, separating or bringing the upper oven 4 and lower oven 41 closer together. During separation, the four sets of square frames 53 can easily rotate alternately into the baking area. Then, the upper oven 4 and lower oven 41 merge together to enclose the inner square frames 53, baking the bricks inside through heating. As the upper oven 4 and lower oven 41 move, the two pressure racks 55 also move synchronously. The top of the square frame 53, located between the mixing chamber 2 and the oven, corresponds to the two pressure racks 55. When the upper oven 4 and lower oven 41 merge, the extrusion circular plate positioned at the entry tube 54 of the pressure rack 55 is inserted into the tube 54. Simultaneously, the lower pressure rack 55 presses against the insert 58, causing the extrusion plate 510 to move upwards from the bottom, extruding and shaping the bricks inside the square frame 53, maintaining synchronization with the brick baking process.The electric clamping blocks 114 can be understood as small bidirectional electric push rods fixedly connected to the clamping blocks on both sides of the moving frame 113. The ring rope 112 can be clamped by the two electric clamping blocks 114. After the ring rope 112 at the bottom of the guide cylinder 111 is moved to the bottom of the conveying pipe 11, the electric clamping blocks 114 release the clamping of the ring rope 112. Then, the moving frame 113 is reset by the third electric push rod 31, and the ring rope 112 is clamped by the electric clamping blocks 114 again, and pushed forward a distance again, thus completing the intermittent movement of the ring rope 112. The movement of the ring rope 112 will also drive the push plate 18 along the conveying path. The internal movement of pipe 11 discharges the residue generated by pyrolysis inside the conveying pipe 11. Each time the extended end of the third electric push rod 31 moves, the connecting frame 32 drives the top column 33 to move. The top column 33 corresponds to the last of the four sets of square frames 53. After the top column 33 comes into contact with the baffle 56 of the last set of square frames 53, the two baffles 56 carry the internally formed bricks out of the square frames 53. The spring telescopic plate 57 extends, limiting the baffle 56 at the other end. This allows the pyrolysis furnace 1 to feed material into the mixing box 2 while simultaneously sending out the prepared bricks inside the square frames 53, achieving a highly efficient preparation process.

[0032] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0033] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0034] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for preparing environmentally friendly bricks based on sludge pyrolysis residue, characterized in that, The preparation method includes the following steps: (1) The oil sludge is added into the pyrolysis furnace. The oil sludge is cracked at high temperature to separate combustible gas and liquid fuel. The remaining carbonaceous material is left on the cracking plate as a base material. (2) The electric door opens the slag discharge port on the conveying pipe corresponding to the pyrolysis plate under unified control. The residual base material left on the pyrolysis plate is sent into the conveying pipe through the slag discharge port and then sent into the mixing box along the inside of the conveying pipe. (3) Add clay through the feeding pipe and mix it with the pyrolysis residue sent through the conveying pipe in the mixing box in a certain proportion. Then, send the brick mixture that has been mixed in the mixing box out through the discharge pipe. (4) The four sets of squares move alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, they continue to rotate counterclockwise to compress and shape the mixture between the mixing box and the upper oven. (5) The square frame rotates into the baking area, and the upper and lower ovens are combined to wrap the inner square frame. The bricks inside the square frame are baked by heating. (6) When the frame is rotated to the delivery position, the two baffles at both ends of the frame carry the internally formed bricks out of the frame; In step (2), four slag discharge ports are equidistantly opened on the surface of the conveying pipe corresponding to the pyrolysis plate, and an electric gate is installed on the outside of the slag discharge ports. Four scrapers are equidistantly slidably installed on the outer edge of the pyrolysis plate, and the bottom of the scrapers slides in contact with the surface of the pyrolysis plate. An elastic band is fixed between adjacent scrapers. A first electric push rod is fixed on the outer wall of the pyrolysis furnace corresponding to the position of each scraper, and the extended end of the first electric push rod is fixedly connected to the scraper. After the electric gate opens the slag discharge port, the first electric push rod drives the scraper to move along the surface of the pyrolysis plate toward the slag discharge port of the conveying pipe, thereby sending the residual base material left on the pyrolysis plate into the interior of the conveying pipe. In step (2), a push plate is slidably connected inside the conveying pipe, and a ring rope extends through the inside of the conveying pipe. The push plate is fixed to the ring rope. A guide cylinder is fixed to one end of the conveying pipe that extends out of the top of the pyrolysis furnace, and the ring rope extends through the inside of the guide cylinder. A base is provided at the bottom of one side of the mixing box. A third electric push rod is fixed to one end of the base facing the pyrolysis furnace, and a moving frame is fixed to the extended end of the third electric push rod. Two electric clamps are slidably installed inside the moving frame at the upper and lower ends of the ring rope. The two electric clamps are clamped on the ring rope. The third electric push rod pushes the electric clamps and the ring rope to move horizontally, and the third electric push rod resets the moving frame. The electric clamp is used again to clamp the ring rope and push it a certain distance to discharge the residue generated by the cracking inside the conveying pipe. In step (4), a base is set at the bottom of one side of the mixing box, and a frame assembly is set at the top of the base. The frame assembly includes a third motor, which is fixed on the base. A rotating frame is fixed at the output end of the third motor. Four square frames are fixed at equal intervals at the top of the rotating frame, and an inlet pipe is set at the top of the square frame. Baffles are set at the front and rear ends of the square frame. An extrusion plate is set inside the square frame. A bracket is slidably inserted into the bottom of the square frame, and the bracket is fixedly connected to the extrusion plate. The third motor drives the rotating frame to rotate. The moving frame rotates, and the four sets of square frames move alternately to the bottom of the mixing box to receive the mixture that has been stirred inside the mixing box. Then, it continues to rotate counterclockwise to compress and shape the mixture between the mixing box and the upper oven. In step (6), a connecting frame is fixed on one side of the extended end of the third electric push rod, and a top column is fixed on one side of the connecting frame located on the vertical frame. The top column corresponds to the position of the square frame baffle. Each time the extended end of the third electric push rod moves, the connecting frame drives the top column to move. The top column corresponds to the last set of the four sets of square frames. After the top column and the baffle of the last set of square frames are pressed and contacted, the two baffles carry the internally formed bricks out of the square frame.

2. The method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to claim 1, characterized in that, In step (3), a feeding pipe is provided at the other end of the mixing box away from the conveying pipe. A stirring frame is rotatably installed on the inner wall of the top of the mixing box through a bearing. A first motor is fixed on the top of the mixing box, and the output end of the first motor is fixedly connected to the stirring frame. Clay is added through the feeding pipe, and the pyrolysis residue sent in by the conveying pipe is mixed and stirred in the mixing box in a certain proportion by the stirring frame driven by the first motor.

3. The method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to claim 2, characterized in that, In step (3), a delivery pipe is provided at the bottom of the mixing box, a circular plate is provided at the top of the mixing box, and two second electric push rods are fixed at the top of the mixing box. The extended ends of the second electric push rods are fixedly connected to the circular plate. A movable notch is provided on the surface of the circular plate corresponding to the position of the stirring frame. The second electric push rod pushes the circular plate down. Because the movable notch is provided on the surface of the circular plate, the circular plate passes through the stirring frame and delivers the brick mixture that has been mixed inside the mixing box out through the delivery pipe.

4. The method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to claim 3, characterized in that, In step (5), a vertical frame is fixed at the end of the base away from the pyrolysis furnace, and a bidirectional screw is rotatably installed inside the vertical frame through a bearing. A second motor is fixed at the top of the vertical frame, and the output end of the second motor is fixedly connected to the bidirectional screw. Two screw seats are threaded onto the surface of the bidirectional screw. An upper oven is fixed to the outer surface of the screw seat at the upper end of the vertical frame, and a lower oven is fixed to the outer surface of the screw seat at the lower end of the vertical frame. The second motor drives the bidirectional screw to rotate, and the upper oven and the lower oven are combined to wrap the inner square frame. The bricks inside the square frame are baked by heating and baking.

5. The method for preparing environmentally friendly bricks based on sludge pyrolysis residue according to claim 4, characterized in that, In step (4), a pressure frame is fixed on one side of the two screw seats. The pressure frame corresponds to the top and bottom of the square frame. The pressure frame is provided with a pressing circular plate at the position of the inlet tube. The pressure frame is provided with vertical limiting plates on both sides of the square frame. When the upper oven and the lower oven move, the two pressure frames will also move synchronously. The top of the square frame between the mixing box and the oven corresponds to the two pressure frames. When the upper oven and the lower oven are combined, the pressing circular plate provided at the position of the inlet tube is inserted into the tube. At the same time, the lower pressure frame presses the insert frame, so that the pressing plate moves from the bottom to the top, pressing and shaping the bricks inside the square frame, keeping it synchronized with the baking of the bricks.

6. An environmentally friendly brick based on sludge pyrolysis residue, achieved by the method according to claim 1, characterized in that: The environmentally friendly brick is composed of clay and residue base material, wherein the residue base material content is 15%, the water content is 13%, and the compressive stress is 30MPa.

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