An internal heating sludge pyrolysis carbonization system

Abstract

The present application discloses an internal heat type sludge pyrolysis carbonization system, which relates to the technical field of pyrolysis carbonization, including a sludge conveying device, including a sludge feed hopper, a screw conveyor and a sludge disperser, wherein the sludge feed hopper is arranged on the screw conveyor; the sludge disperser is arranged on the screw conveyor, and the sludge inlet is connected to the discharge port; a dispersion chamber is formed in the sludge disperser; the sludge disperser is rotatably provided with a rotating shaft, the rotating shaft is provided with a plurality of dispersion leaves, and the sludge disperser is provided with a power part; the sludge disperser is slidably provided with a blocking plate, and the sludge disperser is provided with an opening and closing part; a carbonization reactor is arranged at the bottom of the sludge disperser; a heating chamber is formed in the carbonization reactor, and the heating chamber is respectively connected to the feeding port and the discharge port, and the carbonization reactor is provided with a heating element; a pyrolysis gas recovery device includes a gas transmission pipe and a gas recovery kettle, and the gas transmission pipe connects the gas recovery kettle and the carbonization reactor. The present application can improve the speed of sludge pyrolysis carbonization.

Description

Technical Field

[0001] The present application relates to the technical field of pyrolysis carbonization, and in particular to an internal heating sludge pyrolysis carbonization system. Background Art

[0002] Internal heat sludge pyrolysis carbonization technology is a technology that converts organic matter into carbon products by treating sludge at high temperature. This technology has the characteristics of high efficiency, low emissions and resource utilization, and is of great significance for solving sludge treatment problems, promoting environmental protection and resource recycling.

[0003] At present, the prior art discloses a municipal sludge pyrolysis carbonization treatment system, including a sludge treatment device, a flue gas treatment device, a pyrolysis gas purification device, a heating device, a blower, a heat exchanger and an air mixing tank. After the wet sludge is squeezed by a vertical filter press and dried by an internal heating rotary drying kiln, it is sent to a vertical pyrolysis machine for pyrolysis carbonization; in addition to the sludge-based biochar product output system, the product pyrolysis gas enters a spray tower for separation and purification, and the purified combustible gas is all sent to a burner as a reuse heat source, and the purified and separated heavy components are mixed with the sludge for secondary pyrolysis.

[0004] When the dried sludge is subjected to pyrolysis and carbonization, part of the sludge sticks together into lumps, which easily reduces the speed of pyrolysis and carbonization of the sludge. Summary of the invention

[0005] In order to increase the speed of sludge pyrolysis and carbonization, the present application provides an internal heating sludge pyrolysis and carbonization system.

[0006] The present application provides an internal heating sludge pyrolysis carbonization system, which adopts the following technical solution:

[0007] An internal heating sludge pyrolysis carbonization system, comprising:

[0008] A sludge conveying device, comprising a sludge feed hopper, a screw conveyor and a sludge disperser, wherein the screw conveyor comprises a feed port and a discharge port, and the sludge feed hopper is arranged on the screw conveyor and connected to the feed port;

[0009] The sludge disperser is formed with a sludge inlet and a sludge outlet, and the sludge disperser is arranged on the screw conveyor, and the sludge inlet is communicated with the outlet;

[0010] A dispersion chamber is formed in the sludge disperser, and the dispersion chamber is connected to the sludge inlet and the sludge outlet;

[0011] The sludge disperser is rotatably provided with a rotating shaft located in the dispersion chamber, a plurality of dispersion blades are evenly spaced along the circumferential direction on the outer circumference of the rotating shaft, and the sludge disperser is provided with a power member that drives the rotating shaft to rotate;

[0012] The sludge disperser is slidably provided with a blocking plate for blocking the sludge outlet, and the sludge disperser is provided with an opening and closing member for controlling the blocking plate to block or open the sludge outlet;

[0013] A carbonization reactor is arranged at the bottom of the sludge disperser, and the carbonization reactor is formed with a feed port and a discharge port, and the feed port is connected to the sludge discharge port;

[0014] A heating chamber is formed in the carbonization reactor, the heating chamber is connected to the feeding port and the discharge port respectively, and the carbonization reactor is provided with a heating element;

[0015] The pyrolysis gas recovery device comprises a gas pipeline and a gas recovery kettle, wherein the gas pipeline connects the gas recovery kettle and the carbonization reactor.

[0016] By adopting the above technical solution, this technical solution realizes efficient and continuous pyrolysis and carbonization treatment of sludge by integrating sludge conveying device, sludge disperser, carbonization reactor and pyrolysis gas recovery device. The sludge is sent to the sludge disperser through the conveying device, and the sludge particles are refined through the uniform dispersion effect of the dispersion blades, which increases the contact area between the sludge and the heat source and improves the pyrolysis and carbonization efficiency. The heating element in the carbonization reactor ensures that the sludge is fully pyrolyzed and carbonized at high temperature, and the generated pyrolysis gas is collected and processed by the pyrolysis gas recovery device, realizing the maximum utilization of resources and minimization of environmental pollution.

[0017] Optionally, the dispersion leaf includes a connecting column, a connecting ring and a blade;

[0018] The connecting column is connected to the outer peripheral side of the rotating shaft and is perpendicular to it. The connecting ring is rotatably sleeved on the outer peripheral side of the connecting column. There are multiple connecting rings and they are evenly spaced along the axial direction of the connecting column. There are multiple blades and they are evenly spaced along the circumferential direction on the outer peripheral side of the connecting ring.

[0019] By adopting the above technical solution, the dispersion leaf structure consists of a connecting column, a connecting ring and blades. The connecting ring is evenly spaced along the axial direction of the connecting column and the blades are evenly spaced circumferentially on the outer peripheral side of the connecting ring, which further enhances the dispersion effect of the sludge, making the sludge particles smaller and more uniform, which is beneficial to improving the efficiency and quality of subsequent pyrolysis carbonization.

[0020] Optionally, a receiving groove is formed in the rotating shaft, and the connecting column is provided with a power shaft extending into the receiving groove, and the power shaft rotates on the connecting column and the rotating shaft respectively;

[0021] The sludge disperser is fixedly connected to a fixed column located in the containing tank, and the rotating shaft is provided with a driving assembly. When the rotating shaft rotates, the driving assembly drives the power shaft to rotate;

[0022] The connecting column is provided with a transmission member, and when the power shaft rotates, the transmission member drives the connecting ring to rotate.

[0023] By adopting the above technical solution, by setting a receiving groove in the rotating shaft, the power shaft of the connecting column extends into the receiving groove and is driven to rotate by the driving assembly, thereby realizing effective transmission of power from the rotating shaft to the power shaft. At the same time, the setting of the transmission member enables the connecting ring to rotate, further enhancing the overall dispersion effect of the dispersion leaves and improving the stability and reliability of the system.

[0024] Optionally, the driving assembly includes a driving helical gear and a connecting helical gear;

[0025] The driving bevel gear is arranged on the outer peripheral side of the fixing column and is located in the receiving groove. The connecting bevel gear is arranged on the end of the power shaft and is located in the receiving groove. The connecting bevel gear is meshed with the driving bevel gear.

[0026] By adopting the above technical solution, the meshing transmission mode of the driving helical gear and the connecting helical gear is adopted, which simplifies the transmission structure and improves the transmission efficiency. This design makes the power transmission more stable, reduces the energy loss in the transmission process, and further improves the overall performance of the system.

[0027] Optionally, the transmission member is a transmission coil spring, which is wound around the outer circumference of the power shaft, with one end of the transmission coil spring being clamped to the connecting ring and the other end being clamped to the power shaft.

[0028] By adopting the above technical solution, the design of the transmission coil spring enables the connecting ring to rotate flexibly with the rotation of the power shaft, while maintaining the compactness and reliability of the structure. The elastic characteristics of the transmission coil spring make the transmission process smoother and reduce the noise and wear caused by mechanical vibration.

[0029] Optionally, a control column is coaxially slidable in the power shaft, and the control column is slidably arranged in the connecting column and protrudes out of the connecting column;

[0030] There are multiple groups of connecting rings, each group of connecting rings includes a first ring body and a second ring body, and the opposite side ends of the adjacent first ring bodies and the second ring bodies in the same group are respectively provided with abutment blocks;

[0031] The outer peripheral side of the control column is provided with a limiting column corresponding to the abutment block one by one, the limiting column extends to the end of the connecting ring, and the limiting column slides on the connecting column along the axial direction;

[0032] When the connecting ring rotates until the abutting block abuts against the limiting column, the limiting column limits the rotation of the connecting ring;

[0033] The connecting column is provided with a control component, and when the rotating shaft rotates, the control component controls the control column to slide into and out of the power shaft and perform a cyclic motion;

[0034] When the control column slides into the power shaft, the first ring body rotates freely, and the limiting column limits the rotation of the second ring body;

[0035] When the control column slides out of the power shaft, the second ring body rotates freely, and the limiting column limits the rotation of the first ring body.

[0036] By adopting the above technical solution, the alternating rotation of the connecting ring is achieved by controlling the sliding of the control column in the power shaft and limiting the limiting effect of the limiting column on the connecting ring. This design enables the dispersion blades to produce more complex motion trajectories during the rotation process, thereby further improving the sludge dispersion effect. At the same time, when the connecting ring alternately enters the rotation state, the force of the blades to disperse the sludge increases, thereby improving the dispersion effect.

[0037] Optionally, the control assembly includes a control spring and a control block;

[0038] The control spring is disposed in the power shaft, and the control spring drives the control column to protrude out of the connecting column in a direction away from the rotating shaft;

[0039] The control block is arranged on the peripheral wall of the dispersion cavity, and a sliding surface for the control column to slide is formed on the side of the control block facing the rotating shaft;

[0040] The control block is inclined to form a guide surface for guiding the control column to slide to the sliding surface. When the control column slides on the guide surface, the control column slides into the power shaft.

[0041] By adopting the above technical solution and using the control spring and the control block in combination, the control column can achieve a cyclic motion of sliding in and out of the power shaft under the drive of the rotating shaft.

[0042] Optionally, the facing sides of adjacent blades are in sliding contact.

[0043] By adopting the above technical solution, the sliding contact design of the adjacent blades on the opposite sides increases the area over which the blades break up the sludge, thereby improving the breaking effect.

[0044] Optionally, the opening and closing member is an opening and closing cylinder, which is arranged on the outer wall of the sludge disperser, and the piston rod of the opening and closing cylinder is connected to the sealing plate and slides on the sludge disperser.

[0045] By adopting the above technical solution, the opening and closing cylinder is used as the opening and closing part, and the piston rod of the cylinder pushes the blocking plate to slide to achieve the blocking and opening of the mud outlet. This design makes the opening and closing operation more flexible and convenient, and has higher control accuracy and reliability. At the same time, the automatic control characteristics of the cylinder also make the operation of the entire system more intelligent and convenient.

[0046] Optionally, the power member is a power motor, the power motor is arranged on the top of the sludge disperser, and the output shaft of the power motor is connected to the rotating shaft and is coaxially arranged;

[0047] The output shaft of the power motor rotates on the sludge disperser.

[0048] By adopting the above technical solution, the power motor is used as the power source, and its output shaft is directly connected to drive the rotating shaft to rotate, thus realizing efficient transmission and conversion of power. The stability and reliability of the power motor ensure the continuous and stable operation of the entire system. At the same time, the power motor drive method also has the advantages of convenient adjustment and high control accuracy, which further improves the overall performance of the system.

[0049] In summary, the present application includes at least one of the following beneficial effects:

[0050] 1. The sludge is sent into the disperser through the conveying device. The sludge particles are refined through the uniform dispersion of the dispersing blades, which increases the contact area between the sludge and the heat source and improves the pyrolysis carbonization efficiency;

[0051] 2. The evenly spaced arrangement of the connecting ring along the axial direction of the connecting column and the evenly spaced arrangement of the blades on the outer peripheral side of the connecting ring further enhances the dispersion effect of the sludge, making the sludge particles smaller and more uniform, which is beneficial to improving the efficiency and quality of subsequent pyrolysis carbonization. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic diagram of the external structure of an embodiment of the present application;

[0053] Figure 2 is a schematic diagram of an internal cross-section of an embodiment of the present application;

[0054] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0055] Figure 4 is a schematic diagram of the internal cross section of a disperser in an embodiment of the present application;

[0056] Figure 5 yes Figure 2 An enlarged schematic diagram of part B.

[0057] Figure numerals: 1, sludge conveying device; 2, sludge feeding hopper; 3, screw conveyor; 31, feeding port; 32, discharging port; 4, sludge disperser; 41, sludge feeding port; 42, sludge discharging port; 43, dispersing chamber; 431, control block; 4311, sliding surface; 4312, guiding surface; 44, rotating shaft; 441, containing groove; 45, dispersing blade; 451, connecting column; 4511, power shaft; 4512, control column; 4513, limiting column; 4514, control spring; 45 2. Connecting ring; 4521. First ring body; 4522. Second ring body; 4523. Abutment block; 453. Blade; 46. Power motor; 47. Sealing plate; 48. Opening and closing cylinder; 49. Fixed column; 5. Carbonization reactor; 51. Feeding port; 52. Discharge port; 53. Heating chamber; 54. Heating element; 6. Pyrolysis gas recovery device; 61. Gas transmission pipe; 62. Gas recovery reactor; 7. Driving assembly; 71. Driving bevel gear; 72. Connecting bevel gear; 8. Transmission coil spring. DETAILED DESCRIPTION

[0058] The following is combined with Figure 1-5 This application is described in further detail.

[0059] The embodiment of the present application discloses an internal heating sludge pyrolysis and carbonization system.

[0060] See also Figure 1 The pyrolysis carbonization system includes a sludge conveying device 1, a carbonization reactor 5 and a pyrolysis gas recovery device 6.

[0061] See also Figure 1 and Figure 2 The sludge conveying device 1 includes a sludge feed hopper 2, a screw conveyor 3 and a sludge disperser 4. The sludge feed hopper 2 is located above the screw conveyor 3. The screw conveyor 3 is formed with a feed port 31 and a discharge port 32. The sludge feed hopper 2 is connected to the feed port 31 of the screw conveyor 3. The sludge is put into the sludge feed hopper 2, and then the sludge enters the screw conveyor 3 through the feed port 31, and the sludge is transported from the feed port 31 to the discharge port 32.

[0062] The sludge disperser 4 is connected and installed on one side of the discharge port 32 of the screw conveyor 3. The sludge disperser 4 is formed with a sludge inlet 41 and a sludge outlet 42. The sludge inlet 41 of the sludge disperser 4 is connected with the discharge port 32 of the screw conveyor 3. A dispersion chamber 43 is formed inside the sludge disperser 4. The sludge discharged from the discharge port 32 of the screw conveyor 3 enters the dispersion chamber 43 through the sludge inlet 41, and the sludge is dispersed by the sludge disperser 4.

[0063] See also Figure 2 and Figure 3The sludge disperser 4 is rotatably connected to a rotating shaft 44, which is located in the middle of the dispersion chamber 43. A plurality of dispersion blades 45 are evenly spaced and fixed on the outer peripheral side of the rotating shaft 44 along the circumferential direction. When the rotating shaft 44 rotates, the dispersion blades 45 are driven to rotate, stirring the sludge in the dispersion chamber 43, and evenly dispersing the sludge, effectively reducing the possibility of the sludge sticking into agglomerates, thereby increasing the speed of sludge pyrolysis and carbonization.

[0064] In order to drive the rotating shaft 44 to rotate, the sludge disperser 4 is further provided with a power member. The power member is a power motor 46, which is fixedly connected to the top of the sludge disperser 4, and the output shaft of the power motor 46 is fixedly connected and coaxially arranged with the rotating shaft 44, and the output shaft of the power motor 46 is rotatably connected to the sludge disperser 4. When the power motor 46 is started, the output shaft of the power motor 46 drives the rotating shaft 44 to rotate, thereby driving the dispersion blades 45 to evenly disperse the sludge.

[0065] The sludge disperser 4 is slidably connected with a blocking plate 47 for blocking or opening the mud outlet 42. In addition, the sludge disperser 4 is also provided with an opening and closing member for controlling the sliding of the blocking plate 47 to control the opening and closing of the mud outlet 42. In the embodiment of the present application, the opening and closing member adopts an opening and closing cylinder 48, which is fixedly connected to the outer wall of the sludge disperser 4, and the piston rod of the opening and closing cylinder 48 is fixedly connected to the blocking plate 47, and the piston rod of the opening and closing cylinder 48 slides on the sludge disperser 4, which can realize the opening and closing of the mud outlet 42, thereby controlling the outflow of sludge. When in use, the piston rod of the opening and closing cylinder 48 is controlled to enter the forward stroke, at which time the piston rod pushes the blocking plate 47 to open the mud outlet 42; when the piston rod of the opening and closing cylinder 48 is controlled to enter the reverse stroke, the piston rod drives the blocking plate 47 to block the mud outlet 42.

[0066] See also Figure 1 and Figure 2 , the carbonization reactor 5 is installed below the sludge disperser 4, a heating chamber 53 is formed in the carbonization reactor 5, and a feeding port 51 and a discharge port 52 are formed in the carbonization reactor 5, and the feeding port 51 and the discharge port 52 are respectively connected to the heating chamber 53. At the same time, the feeding port 51 is connected to the mud outlet 42, and the sludge in the sludge disperser 4 is discharged through the mud outlet 42, and then enters the heating chamber 53 through the feeding port 51. A heating element 54 is fixedly installed inside the carbonization reactor 5, and the sludge entering the heating chamber 53 is heated by the heat generated by the heating element 54 to achieve a pyrolysis carbonization reaction. After the carbonization is completed, the carbonized sludge is discharged through the discharge port 52. The carbonization reactor 5 is rotatably connected to a stirring paddle located in the heating chamber 53, and a driving motor is fixed at the bottom of the carbonization reactor 5, and the output shaft of the driving motor is fixed to the stirring paddle, driving the stirring paddle to stir the sludge in the heating chamber 53, thereby improving the heating and carbonization effect of the sludge.

[0067] The pyrolysis gas recovery device 6 includes a gas transmission pipe 61 and a gas recovery kettle 62. The two ends of the gas transmission pipe 61 are fixedly connected to the gas recovery kettle 62 and the carbonization reactor 5. The gas generated during the carbonization reactor 5 heating the carbonized sludge enters the gas recovery kettle 62 through the transmission pipe. Then the gas recovery kettle 62 condenses, separates and stores the collected gas, effectively recovers and processes the gas generated during the carbonization process, realizes the recycling of resources, and improves the environmental protection and economy of the overall system.

[0068] The pyrolysis carbonization system also includes a control system, which includes a controller and a control panel. There are multiple controllers, which are respectively mounted and fixed on the screw conveyor 3, the sludge disperser 4, the sludge disperser 4 and the gas recovery kettle 62, and are respectively electrically connected to the screw conveyor 3, the sludge disperser 4, the sludge disperser 4 and the gas recovery kettle 62. The controller stores a control program for controlling the working states of the screw conveyor 3, the sludge disperser 4, the sludge disperser 4 and the gas recovery kettle 62.

[0069] See also Figure 2 and Figure 3 In order to further improve the effect of dispersing the sludge by the sludge disperser 4 and thus increase the speed of heating the carbonized sludge by the carbonization reactor 5 , the dispersing blade 45 includes a connecting column 451 , a connecting ring 452 and a blade 453 .

[0070] See also Figure 3 and Figure 4 , the connecting column 451 is fixedly connected to the rotating shaft 44, and the connecting column 451 and the rotating shaft 44 are perpendicular to each other. The connecting ring 452 is rotatably connected to the connecting column 451, and there are multiple groups of connecting rings 452 and they are evenly spaced along the axial direction of the connecting column 451. The connecting column 451 is fixedly connected with a limiting ring, which is symmetrically arranged and rotatably connected to the two ends of the connecting ring 452 respectively, and the vertical section of the limiting ring is a "T"-shaped structure. Each group of connecting rings 452 includes a first ring body 4521 and a second ring body 4522. The first ring body 4521 of each group of connecting rings 452 is located on the side of the second ring body 4522 away from the rotating shaft 44. The blades 453 are fixed on the outer peripheral side wall of the connecting ring 452. There are multiple blades 453 and they are evenly spaced along the circumferential direction. The blades 453 of adjacent connecting rings 452 are in sliding contact with each other.

[0071] See also Figure 4 and Figure 5, a receiving groove 441 is formed in the rotating shaft 44, a power shaft 4511 extending into the receiving groove 441 is coaxially arranged in the connecting column 451, and the power shaft 4511 is rotatably connected with the connecting column 451 and the rotating shaft 44. The sludge disperser 4 is fixedly connected with a fixed column 49, which is located in the receiving groove 441. The fixed column 49 is coaxially arranged with the rotating shaft 44 and rotates relatively. A driving assembly 7 is also provided inside the sludge disperser 4, and the driving assembly 7 includes a driving bevel gear 71 and a connecting bevel gear 72. The driving bevel gear 71 is fixed on the outer peripheral side wall of the fixed column 49, and the driving bevel gear 71 corresponds to the power shaft 4511 one by one, while the connecting bevel gear 72 is fixedly connected to the end of the power shaft 4511 and is located in the receiving groove 441, and the connecting bevel gear 72 is meshed with the driving bevel gear 71. When the rotating shaft 44 rotates, the connecting bevel gear 72 cooperates with the driving bevel gear 71 to drive the power shaft 4511 to rotate.

[0072] See also Figure 3 In addition, a transmission part is provided on the connecting column 451. When the power shaft 4511 rotates, power can be transmitted through the transmission part to drive the connecting ring 452 to rotate on the connecting column 451, so that the blades 453 rotate to break up the sludge, thereby improving the dispersion effect of the sludge.

[0073] In the embodiment of the present application, the transmission member is a transmission spring 8, which is wound around the outer peripheral side of the power shaft 4511. The transmission spring 8 corresponds one-to-one to the connecting ring 452. One end of the transmission spring 8 is clamped and fixed on the outer peripheral side of the power shaft 4511, and the other end is clamped and fixed on the inner peripheral side wall of the connecting ring 452.

[0074] When the power shaft 4511 rotates, the transmission coil spring 8 enters a contracted state, and then the transmission coil spring 8 transmits power to the connecting ring 452, driving the connecting ring 452 to rotate, so that the blades 453 rotate with the connecting ring 452 to break up the sludge.

[0075] See also Figure 5 A control column 4512 is coaxially arranged inside the power shaft 4511, and the control column 4512 extends outside the connecting column 451, and the control column 4512 is slidably connected to the power shaft 4511 and the connecting column 451 respectively.

[0076] See also Figure 4 and Figure 5A control assembly is also provided on the connecting column 451. The control assembly can control the control column 4512 to slide in or out of the connecting column 451 and perform a cyclic reciprocating motion during the rotation of the rotating shaft 44. The control assembly includes a control spring 4514 and a control block 431. The control spring 4514 is installed in the power shaft 4511. One end of the control spring 4514 abuts against one end of the control column 4512 close to the rotating shaft 44, and the other end abuts against the power shaft 4511. When the control spring 4514 is elastically released, it pushes the control column 4512 to protrude out of the connecting column 451, so that the control column 4512 slides on the inner peripheral side wall of the dispersion chamber 43 away from the rotating shaft 44. There are multiple groups of control blocks 431 that are evenly spaced up and down and fixed on the circumferential wall of the dispersion chamber 43. Each group of control blocks 431 is adapted to the control columns 4512 on the same plane. Each group of control blocks 431 has multiple control blocks that are evenly spaced along the circumferential direction. The side of the control block 431 facing the rotating shaft 44 is a sliding surface 4311. At the same time, the control block 431 is inclined to form a guide surface 4312, which connects the wall of the dispersion chamber 43 and the sliding surface 4311. When the rotating shaft 44 rotates, the control column 4512 first slides on the wall of the dispersion chamber 43, and then the control column 4512 slides on the guide surface 4312. At this time, the control column 4512 slides into the connecting column 451 until the control column 4512 slides to the sliding surface 4311. The rotating shaft 44 continues to move, so that the control column 4512 slides on the sliding surface 4311. At this time, the control column 4512 and the connecting column 451 are in a relatively static state until the control column 4512 slides off the sliding surface 4311, and the control spring 4514 pushes the control column 4512 to slide out of the connecting column 451 until it abuts against the wall of the dispersion chamber 43.

[0077] See also Figure 3 and Figure 4 The opposite side ends of the adjacent first ring body 4521 and the second ring body 4522 in the same group are respectively fixedly connected with abutment blocks 4523, and the outer peripheral side of the control column 4512 is fixedly connected with a limiting column 4513, the limiting column 4513 corresponds to the abutment blocks 4523 one by one, and the limiting column 4513 extends to the end position of the connecting ring 452, and at the same time, the limiting column 4513 slides axially on the connecting column 451 and the power shaft 4511.

[0078] When sliding on the guide surface 4312, the control column 4512 slides into the connecting column 451. At this time, the limiting column 4513 corresponding to the first ring body 4521 approaches the end of the first ring body 4521, so that the limiting column 4513 can enter into an abutment state with the corresponding abutment block 4523, and the first ring body 4521 enters a restricted rotation state. When the power shaft 4511 rotates, the transmission coil spring 8 corresponding to the first ring body 4521 enters a contracted state; the limiting column 4513 corresponding to the second ring body 4522 gradually moves away from the corresponding abutment block 4523 until the control column 4512 slides on the surface, and the second ring body 4522 enters a free rotation state. At this time, the transmission coil spring 8 is released instantly, so that the connecting ring 452 drives the blades 453 to break up the sludge, and when the transmission coil spring 8 is released, the force of the blades 453 to break up the sludge increases, thereby improving the sludge breaking effect.

[0079] See also Figure 4 and Figure 5 When the control column 4512 slides off the sliding surface 4311, the control spring 4514 pushes the control column 4512 to abut against the wall of the dispersion chamber 43, and the limiting column 4513 corresponding to the first ring body 4521 moves away from the corresponding abutting block 4523 (the abutting block 4523 is Figure 3 ), the limiting column 4513 corresponding to the second ring body 4522 abuts against the corresponding abutment block 4523. At this time, the first ring body 4521 is in a free rotation state, the second ring body 4522 is in a restricted rotation state, and the transmission coil spring 8 (transmission coil spring 8 is in Figure 3 The first ring body 4521 drives the blades 453 to break up the sludge, thereby improving the breaking effect.

[0080] See also Figure 3 and Figure 4 During the rotation of the rotating shaft 44, the first ring body 4521 and the second ring body 4522 alternately enter the rotation state, so that the blades 453 can rotate continuously, and the effect of the blades 453 in breaking up the sludge is improved.

[0081] The implementation principle of an internal heating sludge pyrolysis carbonization system in the embodiment of the present application is:

[0082] When the sludge pyrolysis carbonization work starts, the sludge is fed into the sludge feed hopper 2, and then the screw conveyor 3 conveys the sludge to the sludge disperser 4, and then the dispersing blades 45 disperse the sludge. After dispersion, the sludge enters the carbonization reactor 5 for heating and carbonization, and the carbonized sludge is discharged from the discharge port 52. At the same time, the gas generated during the sludge carbonization process is input into the gas recovery reactor 62 through the gas pipe 61 for recovery.

[0083] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An internal heating sludge pyrolysis carbonization system, characterized by: include A sludge conveying device (1) comprises a sludge feed hopper (2), a screw conveyor (3) and a sludge disperser (4), wherein the screw conveyor (3) comprises a feed port (31) and a discharge port (32), and the sludge feed hopper (2) is arranged on the screw conveyor (3) and is connected to the feed port (31); The sludge disperser (4) is formed with a sludge inlet (41) and a sludge outlet (42); the sludge disperser (4) is arranged on the screw conveyor (3); the sludge inlet (41) is connected to the outlet (32); A dispersion chamber (43) is formed in the sludge disperser (4), and the dispersion chamber (43) is connected to the sludge inlet (41) and the sludge outlet (42); The sludge disperser (4) is rotatably provided with a rotating shaft (44) located in the dispersion chamber (43); a plurality of dispersion blades (45) are evenly spaced along the circumferential direction on the outer peripheral side of the rotating shaft (44); and the sludge disperser (4) is provided with a power member for driving the rotating shaft (44) to rotate; The sludge disperser (4) is slidably provided with a blocking plate (47) for blocking the sludge outlet (42), and the sludge disperser (4) is provided with an opening and closing member for controlling the blocking plate (47) to block or open the sludge outlet (42); A carbonization reaction kettle (5) is arranged at the bottom of the sludge disperser (4), and the carbonization reaction kettle (5) is formed with a feed port (51) and a discharge port (52), and the feed port (51) is connected to the sludge discharge port (42); A heating chamber (53) is formed in the carbonization reaction kettle (5), the heating chamber (53) is respectively connected to the feeding port (51) and the discharge port (52), and the carbonization reaction kettle (5) is provided with a heating element (54); A pyrolysis gas recovery device (6), comprising a gas delivery pipe (61) and a gas recovery kettle (62), wherein the gas delivery pipe (61) is connected to the gas recovery kettle (62) and the carbonization reaction kettle (5); The dispersion blade (45) comprises a connecting column (451), a connecting ring (452) and a blade (453); The connecting column (451) is connected to the outer peripheral side of the rotating shaft (44) and is perpendicular to the connecting column (44); the connecting ring (452) is rotatably sleeved on the outer peripheral side of the connecting column (451); there are a plurality of connecting rings (452) which are evenly spaced along the axial direction of the connecting column (451); and there are a plurality of blades (453) which are evenly spaced along the circumferential direction on the outer peripheral side of the connecting ring (452); The rotating shaft (44) has a receiving groove (441) formed therein, the connecting column (451) is provided with a power shaft (4511) extending into the receiving groove (441), and the power shaft (4511) rotates on the connecting column (451) and the rotating shaft (44) respectively; The sludge disperser (4) is fixedly connected to a fixed column (49) located in the containing groove (441); the rotating shaft (44) is provided with a driving assembly (7); when the rotating shaft (44) rotates, the driving assembly (7) drives the power shaft (4511) to rotate; The connecting column (451) is provided with a transmission member, and when the power shaft (4511) rotates, the transmission member drives the connecting ring (452) to rotate; The driving assembly (7) comprises a driving bevel gear (71) and a connecting bevel gear (72); The driving bevel gear (71) is arranged on the outer peripheral side of the fixing column (49) and is located in the receiving groove (441); the connecting bevel gear (72) is arranged at the end of the power shaft (4511) and is located in the receiving groove (441); the connecting bevel gear (72) is meshed with the driving bevel gear (71); The transmission member is a transmission coil spring (8), the transmission coil spring (8) is wound around the outer circumference of the power shaft (4511), one end of the transmission coil spring (8) is clamped to the connecting ring (452), and the other end is clamped to the power shaft (4511); A control column (4512) is coaxially slidably disposed inside the power shaft (4511), and the control column (4512) is slidably disposed through the connecting column (451) and protrudes out of the connecting column (451); There are multiple groups of the connecting rings (452), each group of the connecting rings (452) comprises a first ring body (4521) and a second ring body (4522), and the facing side ends of the adjacent first ring bodies (4521) and second ring bodies (4522) in the same group are respectively provided with abutment blocks (4523); The outer peripheral side of the control column (4512) is provided with a limiting column (4513) corresponding to the abutment block (4523) one by one, the limiting column (4513) extends to the end of the connecting ring (452), and the limiting column (4513) slides axially on the connecting column (451); When the connecting ring (452) rotates until the abutting block (4523) abuts against the limiting column (4513), the limiting column (4513) limits the rotation of the connecting ring (452); The connecting column (451) is provided with a control component, and when the rotating shaft (44) rotates, the control component controls the control column (4512) to slide in and out of the power shaft (4511) and to perform a cyclic motion; When the control column (4512) slides into the power shaft (4511), the first ring body (4521) rotates freely, and the limiting column (4513) limits the rotation of the second ring body (4522); When the control column (4512) slides out of the power shaft (4511), the second ring body (4522) rotates freely, and the limiting column (4513) limits the rotation of the first ring body (4521); The control assembly comprises a control spring (4514) and a control block (431); The control spring (4514) is disposed in the power shaft (4511), and the control spring (4514) drives the control column (4512) to protrude out of the connecting column (451) in a direction away from the rotating shaft (44); The control block (431) is arranged on a peripheral cavity wall of the dispersion cavity (43), and a sliding surface (4311) for the control column (4512) to slide is formed on a side of the control block (431) facing the rotating shaft (44); The control block (431) is inclined to form a guide surface (4312) for guiding the control column (4512) to slide to the sliding surface (4311); when the control column (4512) slides on the guide surface (4312), the control column (4512) slides into the power shaft (4511).

2. The internal heating sludge pyrolysis carbonization system according to claim 1 is characterized in that: The facing sides of adjacent blades (453) are in sliding contact.

3. The internal heating sludge pyrolysis carbonization system according to claim 1 is characterized by: The opening and closing member is an opening and closing cylinder (48), which is arranged on the outer wall of the sludge disperser (4), and the piston rod of the opening and closing cylinder (48) is connected to the sealing plate (47) and slides on the sludge disperser (4).

4. The internal heating sludge pyrolysis carbonization system according to claim 1 is characterized in that: The power component is a power motor (46), the power motor (46) is arranged on the top of the sludge disperser (4), and the output shaft of the power motor (46) is connected to the rotating shaft (44) and is coaxially arranged; The output shaft of the power motor (46) rotates on the sludge disperser (4).

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