Endothermic spreading device for pyrolysis of chain plate-transported oily sludge

Abstract

The present invention discloses an endothermic spreading device for pyrolyzing oil sludge by chain plate transmission, comprising: a segmented cavity, which is a stepped sealing structure with high and low dislocation, the inner wall of the cavity is covered with heat insulation cotton, a feeding port is arranged at the top of the upper section of the cavity, and a discharging port is arranged at the bottom of the lower section of the cavity; a multi-stage chain plate transmission mechanism, and multiple chain plates are respectively installed in the segmented cavity; a shunting baffle plate, which is arranged above the chain plate; a spiral mixing mechanism, which is arranged above the chain plate; a transfer turning roller, which is arranged at the material falling place at the intersection of adjacent two-stage chain plate transmissions; and a horizontal pushing and pulling plate mechanism, which is arranged above the chain plate. The device of the present invention is beneficial to improving the even covering property and mixing property of the oil sludge on the chain plate, increasing the specific surface area of the oil sludge, and optimizing the endothermic reaction conditions through the combined actions of spreading, mixing, turning, squeezing and vibrating the oil sludge transmitted by the chain plate, so as to enable the oil sludge to be pyrolyzed efficiently and sufficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of oily sludge treatment equipment, and particularly to an endothermic spreading device for pyrolyzing oily sludge by chain plate transmission. Background Art

[0002] In the process of oilfield exploitation and petrochemical production, a large amount of oily solid waste, namely oily sludge, will be generated. Oily sludge is rich in petroleum hydrocarbons and is a multi-phase organic hazardous solid waste mainly composed of mineral oil, minerals, water and sediment, and must be treated harmlessly and resourcefully. Oily sludge has poor fluidity, serious emulsification state and complex composition. Pyrolysis reaction is an important treatment method for solid-liquid-gas phase separation. Among them, the indirect heating high-temperature pyrolysis reaction furnace adopts technical features such as continuous feeding of materials, non-condensable gas recovery treatment, indirect heating by multi-roller heat sources, and flue gas waste heat recycling. Therefore, the heat receiving performance of the materials is more dispersed and uniform than that of the direct heating type. However, in the indirect heating feeding scheme, compared with the rotary kiln type, when using chain plate transmission, due to the continuous feeding, the oily sludge accumulates in a certain shape in the middle of the chain plate, and the even covering property is poor, and the heating surface is single during the transmission process, resulting in problems such as insufficient pyrolysis reaction and low thermal energy efficiency of the equipment, which affects the comprehensive economic benefits. Therefore, there is an urgent need to develop an efficient endothermic spreading device for pyrolyzing oily sludge by chain plate transmission.

[0003] The information disclosed in this background art section is only for enhancing the understanding of the overall background of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide an endothermic spreading device for pyrolyzing oily sludge by chain plate transmission, so as to overcome the disadvantages such as easy accumulation, poor even covering property, uneven heating, and insufficient pyrolysis reaction during the process of transmitting oily sludge.

[0005] To achieve the above object, the present invention provides an endothermic spreading device for pyrolyzing oil sludge by chain plate transmission, comprising: a segmented cavity, which is a stepped sealed structure with high and low dislocation, the inner wall of the cavity is covered with heat-insulating cotton, the top of the upper section of the cavity is provided with a feeding port, and the bottom of the lower section of the cavity is provided with a discharging port; a multi-stage chain plate transmission mechanism, which includes multi-stage chain plates, and the multi-stage chain plates are respectively installed in the segmented cavity for hierarchical transmission and transportation of oil sludge, and each stage of the chain plate is correspondingly arranged in the sealed structure of each segmented cavity; a shunt scraping baffle, which is arranged above the chain plate and close to the feeding port for guiding the oil sludge; a spiral mixing mechanism, which is arranged above the chain plate for stirring the oil sludge; a transfer turning roller, which is arranged at the falling place where adjacent two-stage chain plate transmissions meet for turning the upper surface of the oil sludge during the falling process of the oil sludge; and a horizontal push-pull plate mechanism, which is arranged above the chain plate, and the direction of movement of the push-pull plate in the horizontal push-pull plate mechanism forms a certain angle with the feeding direction of the oil sludge to extrude and mix the moving oil sludge.

[0006] Preferably, in the above technical solution, the shunt scraping baffle is in the structure of a V-shaped plate body, and there is a gap between the shunt scraping baffle and the chain plate.

[0007] Preferably, in the above technical solution, the shunt scraping baffle includes a cross beam and a V-shaped plate body, the two ends of the cross beam are fixedly arranged on the segmented cavity, horizontally arranged on the chain plate, and there is a gap between the lower surface and the chain plate, and the V-shaped plate body is arranged on the cross beam, and its orientation is opposite to the moving direction of the chain plate.

[0008] Preferably, in the above technical solution, the spiral mixing mechanism includes at least a pair of stirring augers with opposite rotation directions, and the stirring augers are horizontally arranged on the chain plate.

[0009] Preferably, in the above technical solution, the rotation directions of the spiral blades on each section of the stirring auger are different, and the rotation directions of the spiral blades between adjacent sections are opposite.

[0010] Preferably, in the above technical solution, the transfer turning roller includes a rotating shaft and a rotating motor, the rotating shaft is horizontally arranged on the chain plate and is at the falling place where adjacent two-stage chain plate transmissions meet, the rotating motor is connected to the rotating shaft to drive the rotating shaft to rotate, and a plurality of blades are uniformly arranged along the axial direction of the rotating shaft.

[0011] Preferably, in the above technical solution, the horizontal push-pull plate mechanism includes: a first connecting rod, which is horizontally arranged above the chain plate, and the first connecting rod is connected to a first driving component, and the first driving component drives the first connecting rod to horizontally reciprocate in the horizontal direction; a plurality of first push-pull plates, which are longitudinally distributed on the first connecting rod, and there is a gap between the lower plate surface of the first push-pull plate and the chain plate; a second connecting rod, which is horizontally arranged above the chain plate and is arranged parallel to the first connecting rod, and the second connecting rod is connected to a second driving component, and the second driving component drives the second connecting rod to horizontally reciprocate in the horizontal direction; and a plurality of second push-pull plates, which are longitudinally distributed on the second connecting rod, and the second push-pull plates are arranged at intervals with the first push-pull plates, and there is a gap between the lower plate surface of the second push-pull plate and the chain plate; wherein, in the working state, the horizontal movement directions of the first connecting rod and the second connecting rod are opposite or opposite, and the interval between the first push-pull plate and the second push-pull plate forms a squeezing and conveying space for oil sludge.

[0012] Preferably, in the above technical solution, the first driving component is a first crank driving component, the second driving component is a second crank driving component, and there is a 180° phase difference between the two rotating cranks of the first crank driving component and the second crank driving component.

[0013] Preferably, in the above technical solution, the number of the first push-pull plates is the same as that of the second push-pull plates, and the first push-pull plates and the second push-pull plates are equally spaced.

[0014] Preferably, in the above technical solution, along the transmission direction of the chain plate, the flow dividing and scraping baffle, the spiral mixing and stirring mechanism, the transfer turning roller and the horizontal push-pull plate mechanism are arranged in sequence.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The endothermic spreading and covering device for pyrolyzing oil sludge by chain plate transmission of the present invention adopts a segmented cavity design and hierarchical transmission and transportation, which can reduce the transmission distance of each stage of chain drive under a certain reaction residence time required for the full pyrolysis of oil sludge, thereby improving the operation stability and service life of the transmission mechanism.

[0017] (2) The endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate can increase the covering area of the fed oil sludge in contact with the chain plate through a shunt scraping baffle structure, so as to improve the even covering property of the material during the chain plate transmission and feeding process and increase the specific surface area. At the same time, through the multi-rotation-direction spiral mixing, intermediate turning, and horizontal push-pull plate mechanisms, the up-and-down conversion of the heat-receiving surface of the oil sludge and the longitudinal and horizontal stirring and mixing are realized, so as to improve the material mixing property and make the endothermic reaction of the oil sludge in contact with the intermediate heat-transfer air medium more uniform and sufficient. In summary, it has the beneficial effects of improving the pyrolysis energy efficiency of the oil sludge treatment equipment and reducing the working cost of high-temperature heat treatment.

[0018] (3) The device of the present invention, through the combined actions of spreading, mixing, turning, squeezing and vibrating on the oil sludge carried by the chain plate, is beneficial to improving the even covering property and mixing property of the oil sludge on the chain plate, increasing the specific surface area of the oil sludge, and optimizing the slow endothermic reaction conditions, so as to efficiently and fully pyrolyze the oil sludge. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the internal structure of the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate;

[0020] Figure 2 is a schematic diagram of the structure of the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate;

[0021] Figure 3 is a schematic diagram of the structure of the chain plate transmission mechanism in the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate;

[0022] Figure 4 is a schematic diagram of the structure of the shunt scraping baffle in the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate, that is Figure 1 the enlarged view of part A in;

[0023] Figure 5 is a schematic diagram of the structure of the multi-rotation-direction spiral mixing mechanism in the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate, that is Figure 1 the enlarged view of part B in;

[0024] Figure 6 is a schematic diagram of the structure of the intermediate turning roller in the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate;

[0025] Figure 7 is a schematic diagram of the structure of the horizontal push-pull plate mechanism in the endothermic spreading and covering device of the present invention for pyrolyzing oil sludge carried by a chain plate, that is Figure 1 the enlarged view of part C in.

[0026] Main Reference Numeral Description:

[0027] 1 - Segmented cavity, 11 - Outer box body of the segmented cavity, 12 - Feeding port, 13 - Discharging port, 14 - Thermal insulation cotton, 15 - Support structure.

[0028] 2 - Chain plate transmission mechanism, 21 - Chain shaft, 22 - Side support track, 23 - Chain plate track, 24 - Chain plate, 25 - Sprocket, 26 - Rolling chain plate support rod, 27 - Support pedestal, 28 - Bearing.

[0029] 3 - Diverting scraping baffle, 31 - Cross beam, 32 - V - shaped plate body.

[0030] 4 - Spiral mixing mechanism, 41 - End shaft support, 42 - Main shaft, 43 - Clockwise stirring auger, 44 - Bearing, 45 - Rotating motor, 46 - Motor bracket, 47 - Counter - clockwise stirring auger.

[0031] 5 - Transfer turning roller, 51 - Rotating shaft, 52 - Rotating motor, 53 - End shaft support, 54 - Bearing, 55 - Motor bracket, 56 - Blade.

[0032] 6 - Transverse push - pull plate mechanism, 61 - First connecting rod, 62 - First driving assembly, 621 - Rotating motor, 622 - Crank, 623 - Connecting rod, 624 - Crank fixing bracket, 625 - Connecting hinge; 63 - First push - pull plate, 64 - Second connecting rod, 65 - Second driving assembly, 66 - Second push - pull plate; 67 - End shaft support, 68 - Sliding bearing Detailed implementation manners

[0033] The following combines with the attached drawings to describe in detail the specific implementation manners of the present invention. However, it should be understood that the protection scope of the present invention is not limited by the specific implementation manners.

[0034] Unless otherwise clearly stated, in the whole specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0035] Such as Figures 1 to 7As shown in the figure, an endothermic spreading device for pyrolysis of oil sludge by chain plate transmission according to a specific embodiment of the present invention includes a segmented cavity 1, a multi-stage chain plate transmission mechanism 2, a shunting baffle plate 3, a spiral mixing mechanism 4, a transfer turning roller 5 and a transverse push-pull plate mechanism 6. Along the transmission direction of the chain plate, the shunting baffle plate, the spiral mixing mechanism, the transfer turning roller and the transverse push-pull plate mechanism are arranged in sequence. An inlet is provided at the upper end of the segmented cavity 1, and an outlet is provided at the lower section. The multi-stage chain plate transmission mechanism 2 is installed in the segmented cavity 1. The oil sludge is fed from the inlet of the segmented cavity 1, driven by the multi-stage chain plate transmission mechanism 2, and successively passes through the shunting baffle plate 3, the spiral mixing mechanism 4, the transfer turning roller 5 and the transverse push-pull plate mechanism 6 arranged above the chain plate transmission mechanism 2 for mixing and stirring. Finally, the oil sludge is discharged from the outlet at the lower section of the segmented cavity 1. The specific structure is as follows:

[0036] The segmented cavity 1 includes an outer box body 11, an inlet 12 and an outlet 13. The segmented cavity 1 is a stepped sealed structure with high and low dislocation. The segmented cavity 1 in this embodiment is composed of two cavities, namely an upper cavity and a lower cavity. The upper cavity and the lower cavity are arranged in a stepped shape with high and low dislocation, and the cavity is a sealed structure. A support structure 15 is provided at the bottom of the upper cavity for supporting the upper cavity. The inner wall of the segmented cavity 1 is covered with heat-insulating cotton 14, and mounting holes for positioning other mechanisms are provided on both side walls. The inlet 12 is provided at the top of the upper cavity, and the outlet 13 is provided at the bottom of the lower cavity.

[0037] The segmented cavity 1 is provided with a multi-stage chain plate transmission mechanism 2. The multi-stage chain plate transmission mechanism 2 includes two-stage chain plate transmission mechanisms, namely a first chain plate transmission mechanism and a second chain plate transmission mechanism. The structures of the first-stage chain plate transmission mechanism and the second chain plate transmission mechanism are the same. The first chain plate transmission mechanism is installed in the upper-stage cavity of the segmented cavity 1, and the second chain plate transmission mechanism is installed in the lower-stage cavity of the segmented cavity 1. Taking the first chain plate transmission mechanism as an example for illustration. The first chain plate transmission mechanism includes chain shafts 21, side support tracks 22, chain plate tracks 23, chain plates 24, sprockets 25, and rolling chain plate support rods 26. There are two chain shafts 21, and both ends of the chain shafts 21 are fixedly installed on the inner side walls of the segmented cavity 1. The sprockets 25 are sleeved on the chain shafts 21. A chain plate 24 is covered between the two chain shafts 21. Side support tracks 22 are provided on both sides of the chain plate 24, and the side support tracks 22 are fixed on the inner wall of the segmented cavity 1. Chain plate tracks 23 are installed on the side support tracks 22, and the chain plate 22 is placed between the two chain plate tracks 23. A plurality of spaced rolling chain plate support rods 26 are provided below the chain plate 24. Support brackets 27 are provided at both ends of the rolling chain plate support rods 26, and bearings 28 are provided on the support brackets 27. The support brackets 27 are installed on both sides of the segmented cavity 1. The sprocket 25 is driven to rotate by a motor to drive the chain plate 24 to transmit. The oily sludge enters the chain plate of the first chain plate transmission mechanism from the feed inlet 12, is conveyed to the chain plate of the second chain plate transmission mechanism, and is discharged through the discharge outlet 13.

[0038] A diversion scraping baffle 3 is provided above the chain plate 24 of the first chain plate transmission mechanism and is arranged close to the feed inlet 12. The diversion scraping baffle 3 has a V-shaped plate body structure, and there is a gap between the diversion scraping baffle and the chain plate. The diversion scraping baffle 3 is a V-shaped thin plate structure. Its installation position is close to the feed inlet. It is fixedly connected to the side wall of the segmented cavity 1 through a cross beam and is higher than the chain plate 24 with a certain gap therebetween. The size of this gap is determined according to the appropriate heat-absorbing flat thickness of the oily sludge, and it is used to spread the piled-up oily sludge of the newly fed material through the scraping action and play a role in laterally diverting the redundant oily sludge higher than the gap.

[0039] Preferably, the diversion scraping baffle 3 includes a cross beam 31 and a V-shaped plate body 32. Both ends of the cross beam are fixedly provided on the segmented cavity 1, horizontally arranged above the chain plate 24, and there is a gap between its lower surface and the chain plate. The V-shaped plate body is arranged on the cross beam 31, and its orientation is opposite to the moving direction of the chain plate 24. The V-shaped plate body is used to spread the piled-up oily sludge of the newly fed material through the scraping action and play a role in laterally diverting the redundant oily sludge higher than the gap.

[0040] The spiral mixing mechanism 4 is arranged above the chain plate 24 of the first chain plate transmission mechanism and is used for stirring and mixing oily sludge. After being stirred by the spiral mixing mechanism 4, it is conveyed to the second chain plate transmission mechanism. At the material falling place where the chain plate transmissions of the first chain plate transmission mechanism and the second chain plate transmission mechanism meet, there is a transfer turning roller 5, which is placed at the material falling position where the two-stage chain plate transmissions meet and is used to turn the upper surface during the falling process of the oily sludge. After the oily sludge is turned by the transfer turning roller 5, it falls onto the second chain plate transmission mechanism, and a transverse push-pull plate mechanism 6 is arranged on the second chain plate transmission mechanism. The transverse push-pull plate mechanism 6 is horizontally arranged on the chain plate 24, and the moving direction of the push-pull plate in the transverse push-pull plate mechanism 6 forms a certain angle with the feeding direction of the oily sludge to extrude the moving and mixed oily sludge, so that the oily sludge is subjected to a transverse extrusion and mixing effect.

[0041] Preferably, the spiral mixing mechanism 4 includes a pair of stirring augers with opposite rotation directions, and the stirring augers are horizontally arranged above the chain plate 24. The stirring augers are installed close to the horizontal height of the chain plate. The stirring augers stir on the chain plate, so that the stirring flow directions of the oily sludge moving on the chain plate cross and mix.

[0042] The spiral mixing mechanism 4 includes a pair of stirring augers with opposite rotation directions, namely a clockwise stirring auger 43 and a counterclockwise stirring auger 47. The clockwise stirring auger 43 and the counterclockwise stirring auger 47 have the same structure. Taking the structure of the clockwise stirring auger as an example for description, each stirring auger mechanism includes an end shaft support 41, a main shaft 42, a stirring auger 43, a bearing 44, a motor 45 and a motor bracket 46. The stirring auger 43 is wound around the main shaft 42. End shaft supports 41 are provided at both ends of the main shaft 42, and the end shaft supports 41 are installed inside the segmented cavity 1. Bearings are provided on the end shaft supports 41, and one end is connected to the motor 45. The motor 45 is arranged on the motor bracket 46. The main shaft 42 is driven to rotate by the motor 45.

[0043] Preferably, the spiral directions of the spiral blades of each section on the stirring auger 43 are different, and the spiral directions of the spiral blades between adjacent sections are opposite. The stirring auger is of a segmented type, and the spiral directions of the spiral blades between adjacent sections are opposite, so that the stirring flow directions of the oily sludge cross and mix.

[0044] Preferably, the transfer turning roller 5 includes a rotating shaft 51 and a rotating motor 52. End shaft supports 53 are provided at both ends of the rotating shaft 51, and the end shaft supports 53 are arranged inside the segmented cavity 1. One of the end shaft supports 53 is connected to a bearing 54, the rotating shaft 51 is connected to the rotating motor 52, and the rotating motor 52 is arranged on the motor bracket 55. The rotating shaft 51 is driven to rotate by the rotating motor 52. A plurality of blades 56 are arranged along the axial direction of the rotating shaft 51. The oily sludge conveyed last time falls on the transfer turning roller 5, and the rotating shaft 51 rotates, which is used to turn the upper surface during the falling process of the oily sludge.

[0045] Preferably, in the above technical solution, the horizontal push-pull plate mechanism 6 includes: a first connecting rod 61, which is horizontally arranged above the chain plate 24, and the first connecting rod 61 is connected to a first driving component 62. The first connecting rod 61 is driven by the first driving component 62 to horizontally reciprocate in the transverse direction. Both ends of the first connecting rod 61 are provided with end shaft supports, one end of which is provided with a sliding bearing, and the other end is connected to the first driving component 62. A plurality of first push-pull plates 63 are longitudinally distributed on the first connecting rod 61, and there is a gap between the lower plate surface of the first push-pull plate 63 and the chain plate 24.

[0046] A second connecting rod 64 is horizontally arranged above the chain plate 24 and is arranged parallel to the first connecting rod 61. The second connecting rod 64 is connected to a second driving component 65. The second connecting rod 64 is driven by the second driving component 65 to horizontally reciprocate in the transverse direction. Both ends of the second connecting rod 64 are provided with end shaft supports 67, one end of which is provided with a sliding bearing 68, and the other end is connected to the second driving component 65. A plurality of second push-pull plates 66 are longitudinally distributed on the second connecting rod 64. The second push-pull plates 66 are arranged at intervals with the first push-pull plates 63, and there is a gap between the lower plate surface of the second push-pull plate 66 and the chain plate.

[0047] Among them, in the working state, the transverse movement directions of the first connecting rod 61 and the second connecting rod 64 are opposite or relative, and the interval between the first push-pull plate 63 and the second push-pull plate 66 forms an extrusion and transfer space for oil sludge. Preferably, in the above technical solution, the number of the first push-pull plates 63 and the second push-pull plates 66 is the same, and the first push-pull plates 63 and the second push-pull plates 66 are equally spaced. The longitudinally fed oil sludge is simultaneously subjected to a transverse extrusion and mixing action.

[0048] Preferably, in the above technical solution, the first driving component is a first crank driving component, the second driving component is a second crank driving component, and there is a 180° phase difference between the two rotating cranks of the first crank driving component and the second crank driving component. The first crank driving component and the second crank driving component have the same structure. Taking the first crank driving component as an example for illustration, it includes a rotating motor 621, a crank 622, and a connecting rod 623. The output shaft of the rotating motor 621 is connected to the crank 622. The crank 622 and the rotating motor are installed on a crank fixing bracket 624. The crank 622 is connected to the connecting rod 623, and the other end of the connecting rod 623 is hinged to the end shaft support 67 through a connecting hinge 625. The rotating motor 621 drives the crank to rotate, and the crank 622 drives the first connecting rod 61 to horizontally move in the transverse direction through the connecting rod 623. Due to the 180° phase difference between the two rotating cranks of the first crank driving component and the second crank driving component, the longitudinally fed oil sludge is simultaneously subjected to a transverse extrusion and mixing action.

[0049] The endothermic spreading device of the present invention for pyrolyzing oil sludge by chain plates has the following working process:

[0050] (1) First, the oil sludge is continuously fed into the segmented cavity from the feeding port, and the oil sludge falls on the first-stage chain plate.

[0051] (2) The chain plate is driven to move by the driving main shaft and the driving sprocket. The oil sludge feeding longitudinally on the first-stage chain plate passes through the shunting scraping baffle plate. By scraping and blocking the piled-up oil sludge of the newly fed material and laterally diverting the redundant oil sludge higher than the gap, the oil sludge is in a paved state after passing through the shunting scraping baffle plate.

[0052] (3) The oil sludge feeding longitudinally on the first-stage chain plate passes through the multi-rotation-direction spiral mixing mechanism. Through the longitudinal turning and the intersection of different transverse flows generated by the spiral blades with opposite rotation directions, the oil sludge is cross-stirred and mixed.

[0053] (4) When the oil sludge is conveyed to the end of the first-stage chain plate, it falls onto the distributed blades of the transfer turning roller during the falling process. After being subjected to the rotating turning action, the original upper and lower surfaces of the oil sludge are mutually converted, and it falls onto the front end of the second-stage chain plate.

[0054] (5) The oil sludge feeding longitudinally on the second-stage chain plate passes through the transverse push-pull plate mechanism. The crank is driven to rotate and the connecting rod moves by the rotating motor, and then the transverse push-pull plate mechanism is driven to reciprocate horizontally. And because there is a 180° phase difference between the two rotating cranks, the transverse push-pull plate mechanism has different movement directions, so that the oil sludge feeding longitudinally is simultaneously subjected to the extrusion and mixing action of the push-pull plates.

[0055] (6) The oil sludge that has undergone sufficient pyrolysis reaction is conveyed to the end of the second-stage chain plate and discharged from the discharge port, and the pyrolysis reaction process is completed more evenly and sufficiently.

[0056] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An endothermic spreading device for pyrolyzing oil sludge by chain plate transmission, characterized in that, Comprising: A segmented cavity, which is a stepped sealing structure with high and low dislocation. The inner wall of the cavity is covered with thermal insulation cotton. The top of the upper section of the cavity is provided with a feeding port, and the bottom of the lower section of the cavity is provided with a discharging port; A multi-stage chain plate transmission mechanism, which includes multi-stage chain plates. The multi-stage chain plates are respectively installed in the segmented cavity for the hierarchical conveying and transportation of oily sludge. Each stage of the chain plate is correspondingly arranged in the sealing structure of each segmented cavity; A shunting scraping baffle, which is arranged above the chain plate and close to the feeding port for spreading and guiding redundant oily sludge; A spiral mixing mechanism, which is arranged above the chain plate for mixing oily sludge; A transfer turning roller, which is arranged at the material falling place where adjacent two-stage chain plate transmissions meet, for turning the upper surface of the oily sludge during the falling process of the oily sludge; And A horizontal push-pull plate mechanism, which is arranged above the chain plate. The moving direction of the push-pull plate in the horizontal push-pull plate mechanism forms a certain angle with the feeding direction of the oily sludge to extrude and mix the moving oily sludge; The shunting scraping baffle has a V-shaped plate structure, and there is a gap between the shunting scraping baffle and the chain plate; The spiral mixing mechanism includes at least a pair of stirring augers with opposite rotation directions. The stirring augers are horizontally arranged on the chain plate; The transfer turning roller includes a rotating shaft and a rotating motor. The rotating shaft is horizontally arranged on the chain plate and is at the material falling place where adjacent two-stage chain plate transmissions meet. The rotating motor is connected to the rotating shaft to drive the rotating shaft to rotate. A plurality of blades are evenly arranged along the axial direction of the rotating shaft.

2. The endothermic spreading device for pyrolysis of oil sludge conveyed by chain plates according to claim 1, wherein, The shunting scraping baffle includes a cross beam and a V-shaped plate body. The two ends of the cross beam are fixedly arranged on the segmented cavity, horizontally arranged on the chain plate, and there is a gap between the lower surface and the chain plate. The V-shaped plate body is arranged on the cross beam, and its orientation is opposite to the moving direction of the chain plate.

3. The endothermic spreading device for pyrolyzing oil sludge by chain plate transmission according to claim 1, wherein The spiral directions of the spiral blades on each section of the stirring auger are different, and the spiral directions of the adjacent sections of the spiral blades are opposite.

4. The endothermic spreading device for pyrolysis of oil sludge carried by chain plates according to claim 1, characterized in that, The horizontal push-pull plate mechanism includes: A first connecting rod, which is horizontally arranged above the chain plate. The first connecting rod is connected to a first driving component, and the first driving component drives the first connecting rod to horizontally reciprocate in the horizontal direction; A plurality of first push-pull plates, which are longitudinally distributed on the first connecting rod. There is a gap between the lower plate surface of the first push-pull plate and the chain plate; A second connecting rod, which is horizontally arranged above the chain plate and is arranged parallel to the first connecting rod. The second connecting rod is connected to a second driving component, and the second driving component drives the second connecting rod to horizontally reciprocate in the horizontal direction; and A plurality of second push-pull plates, which are longitudinally distributed on the second connecting rod. The second push-pull plates are arranged at intervals with the first push-pull plates. There is a gap between the lower plate surface of the second push-pull plate and the chain plate; Wherein, in the working state, the horizontal movement directions of the first connecting rod and the second connecting rod are opposite or relative, and the interval between the first push-pull plate and the second push-pull plate forms an extrusion conveying space for the oily sludge.

5. The endothermic spreading device for chain plate heat transfer and pyrolysis of oil sludge according to claim 4, wherein The first driving component is a first crank driving component, the second driving component is a second crank driving component, and there is a 180° phase difference between the two rotating cranks of the first crank driving component and the second crank driving component.

6. The endothermic spreading device for pyrolysis of oil sludge carried by chain plates according to claim 4, wherein, The number of the first push-pull plates and the second push-pull plates is the same, and the first push-pull plates and the second push-pull plates are evenly distributed at equal intervals.

7. The endothermic spreading device for chain plate conveying and pyrolyzing oil sludge according to claim 1, wherein Along the transmission direction of the chain plate, there are successively arranged the shunting scraping baffle plate, the spiral mixing mechanism, the transfer turning roller and the transverse push-pull plate mechanism.

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