Pyrolysis treatment device for oily sludge

Abstract

The invention discloses a pyrolysis treatment device for oily sludge, and relates to the technical field of oily sludge pyrolysis treatment, the pyrolysis treatment device comprises a support frame, an inner cylinder, a hinge piece and an oily sludge pyrolysis efficiency improving mechanism, the oily sludge pyrolysis efficiency improving mechanism comprises a main body group, an internal and external synergistic targeted temperature control hot air transmission assembly and a hot air oily impurity interception treatment assembly, and the pyrolysis efficiency of the device can be effectively improved through the design of the internal and external synergistic targeted temperature control hot air transmission assembly; the efficient heat transfer mode that the capsule columns and the hot air pipelines are effectively communicated is achieved, oily sludge in the inner barrel can be heated more rapidly and evenly, the pyrolysis reaction is accelerated, and therefore the overall pyrolysis efficiency is improved, the pyrolysis time is shortened, the treatment capacity of equipment is improved, and the energy consumption is reduced. And the quality difference of pyrolysis products caused by non-uniform heating is reduced, so that the quality of gas, liquid and solid products generated by pyrolysis is more stable and superior, and subsequent separation and recycling are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pyrolysis treatment of oily sludge, and specifically to a pyrolysis treatment device for oily sludge. Background Art

[0002] During the production processes of the petroleum and chemical industries, a large amount of oily sludge is generated. If these oily sludges are not properly treated, they will not only occupy a large amount of land resources, but also cause serious pollution to the soil, water bodies and atmospheric environment. As an efficient method for treating oily sludge, the pyrolysis treatment technology can crack the organic matter in the oily sludge into recyclable gas, liquid and solid products under anaerobic or anoxic conditions, realizing the reduction, harmlessness and resource utilization of the oily sludge.

[0003] Currently, the rotary kiln type pyrolysis treatment device is one of the commonly used equipment for pyrolysis treatment of oily sludge. The device mainly consists of a rotating inner cylinder, a hot gas channel and a burner sleeved outside the inner cylinder, and auxiliary components. During operation, the burner generates high-temperature gas, and when the high-temperature gas flows through the hot gas channel, it heats the inner cylinder. The oily sludge is put into the inner cylinder, and the inner cylinder rotates itself to make the oil sludge tumble in the cylinder, so as to promote the uniform heating of the oil sludge and complete the pyrolysis process.

[0004] However, there are many problems with the existing rotary kiln type pyrolysis treatment device. On the one hand, the overall equipment is relatively large. When the size of the inner cylinder is large, due to the inefficient heat transfer method between the hot gas channel and the inner cylinder, the heating of each part of the inner cylinder is uneven; this will cause local incomplete pyrolysis or over-pyrolysis of the oily sludge during the pyrolysis process, not only reducing the quality and yield of the pyrolysis products, but also generating a large amount of difficult-to-treat residues, increasing the subsequent treatment cost and environmental risk.

[0005] On the other hand, during the long-term use of the hot gas channel, impurities carried by the high-temperature gas, such as unburned carbon particles and ash generated by fuel combustion, as well as high-boiling tar substances generated by the pyrolysis of oily sludge, will gradually deposit inside the channel, resulting in channel blockage, which seriously affects the flow and heat transfer efficiency of the hot gas, further exacerbating the problem of uneven heating of the inner cylinder; at the same time, the heat transfer method between the hot gas channel and the inner cylinder is relatively single, mainly relying on heat conduction and natural convection, which is difficult to meet the requirements of efficient pyrolysis treatment, resulting in high energy consumption and low efficiency in the entire pyrolysis process.

[0006] Therefore, it is urgent to improve the existing pyrolysis treatment device for oily sludge to solve the problems of large equipment floor area, uneven heating of the inner cylinder, blockage of the hot gas channel and low heat transfer efficiency, and improve the effect and economy of the pyrolysis treatment of oily sludge.

[0007] Therefore, the present invention proposes a pyrolysis treatment device for oily sludge to solve the above problems. Summary of the invention

[0008] In view of this, the technical problem to be solved by the present invention is to propose a pyrolysis treatment device for oily sludge to solve the problems existing in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pyrolysis treatment device for oily sludge, comprising: a support frame, and also comprising: an oily sludge pyrolysis efficiency improvement mechanism, the oily sludge pyrolysis efficiency improvement mechanism comprising a main body group, an internal and external coordinated targeted temperature control hot air transmission component, and a hot air oily impurity interception and treatment component, the internal and external coordinated targeted temperature control hot air transmission component and the hot air oily impurity interception and treatment component are both arranged in the main body group; the internal and external coordinated targeted temperature control hot air transmission component is used for fixed-point temperature control to assist the oily sludge Pyrolysis work ensures the uniformity of heating during pyrolysis of oily sludge; the hot air oil-containing impurity interception and treatment component is used to reduce the influence of oil-containing impurities attached to the heat transfer pipeline on the pyrolysis efficiency; the internal and external coordinated targeted temperature control hot air transmission component includes a hinge, a capsule column is fixedly connected to the hinge, and a counterweight chain is hinged at one end of the capsule column away from the hinge; the hot air oil-containing impurity interception and treatment component includes an inner cylinder, a corrugated compensation pipe fitting is fixedly connected to the inner cylinder, and a metal hose is fixedly connected to the corrugated compensation pipe fitting.

[0010] Preferably, the main body group includes a bevel gear drive group fixedly connected to the support frame, one side of the bevel gear drive group is meshingly connected to an outer cylinder, the outer column shaft end of the outer cylinder is rotatably connected to an external cylinder column of the burner, and the bevel gear drive group includes a drive group body composed of two lateral bevel gears, and large and small double gear rings located on the side walls of the outer cylinder.

[0011] Preferably, the inner wall of the outer tube is fixedly connected with an auxiliary connecting piece, and an L-shaped pipe is symmetrically fixedly connected to the auxiliary connecting piece, one end of the L-shaped pipe is located in the external tube column of the burner, and the other end is located in the outer tube, the inner tube is fixedly connected to the inner wall of the auxiliary connecting piece, and a hot air pipe is fixedly connected to the L-shaped pipe, and the hot air pipe is arranged around the inner tube.

[0012] Preferably, the internal and external coordinated targeted temperature controlled hot air transmission component includes a U-shaped frame fixedly connected to the inner wall of the inner cylinder, the U-shaped frame is symmetrically provided with disturbance inclined grooves, the outer end of the U-shaped frame is rotatably connected to a adapter, and the hinge is rotatably connected to the adapter.

[0013] Preferably, a flow control valve is fixedly connected inside the capsule column, and heat dissipation fins are fixedly connected to the capsule column at equal intervals.

[0014] Preferably, the hot air oil impurity interception and treatment assembly includes a threaded ring threadedly connected to the hot air duct. A guiding ring is fixedly connected to the inner cavity of the threaded ring. A rotating ring is rotatably connected to the guiding ring, and springs are fixedly connected to the rotating ring at equal intervals.

[0015] Preferably, an inner embedded ring is rotatably connected to the inner cavity of the threaded ring. A gear ring is fixedly connected to the end of the inner embedded ring away from the spring. A filter sieve plate is fixedly connected to the gear ring, and an annular groove is formed in the filter sieve plate.

[0016] Preferably, an auxiliary frame is fixedly connected to the inner wall of the inner cylinder, and a screw rod is rotatably connected to the auxiliary frame.

[0017] Compared with the prior art, the present invention provides a pyrolysis treatment device for oily sludge, which has the following beneficial effects: 1. Through the design of the internal and external collaborative target temperature control hot gas transmission assembly, the following benefits can be brought to the overall work: Improve pyrolysis efficiency: Through a more efficient heat transfer method in which the capsule column is effectively connected to the hot air duct, the oily sludge in the inner cylinder can be heated more quickly and evenly, accelerating the pyrolysis reaction, thereby improving the overall pyrolysis efficiency, shortening the pyrolysis time, and increasing the processing capacity of the equipment.

[0018] Improve the quality of pyrolysis products: Uniform heating avoids the situation of local overheating or overcooling of the oily sludge, reduces the quality difference of pyrolysis products caused by uneven heating, and makes the quality of gas, liquid and solid products produced by pyrolysis more stable and excellent, which is beneficial to subsequent separation and recycling.

[0019] Reduce equipment maintenance costs: Uniform heating helps to reduce the problems of deformation and wear of the inner cylinder caused by local overheating, extends the service life of the inner cylinder and other related components, reduces the maintenance and replacement frequency of the equipment, and thus reduces the equipment maintenance costs.

[0020] Reduce environmental pollution: A more efficient pyrolysis process can make the oily sludge be more fully treated, reduce the emission of incompletely pyrolyzed organic matter, and reduce the environmental pollution risk; at the same time, a stable pyrolysis process also helps to reduce the occurrence of accidental leakage accidents caused by unstable operation.

[0021] 2. Through the design of the capsule column and the flow control valve, the present invention can bring the following benefits to the temperature control work inside the inner cylinder: significantly improve the quality of pyrolysis products: by installing a viscosity sensor and a temperature sensor at the bottom of the capsule column, the pyrolysis requirements of the oily sludge in different areas of the inner cylinder can be accurately identified, and hot gas with an appropriate flow rate can be targeted for delivery, effectively avoiding the problems of insufficient pyrolysis or over-pyrolysis due to uneven heating in local areas; for example, in areas where the oily sludge accumulates thickly, increasing the supply of hot gas can ensure that the sludge in this area is fully pyrolyzed; while in areas where the pyrolysis reaction is relatively fast, reducing the input of hot gas can prevent the sludge from being over-pyrolyzed; this makes the composition of the pyrolysis products more uniform and stable, greatly improving the quality of gas, liquid and solid products, and enhancing the value of resource recovery and utilization.

[0022] Greatly improve the pyrolysis yield: This design can dynamically adjust the hot gas supply according to the real-time pyrolysis state of the oily sludge, enabling each part of the sludge in the inner cylinder to be in the optimal pyrolysis temperature environment, fully stimulating the pyrolysis reaction; especially for areas where the pyrolysis reaction is relatively slow, sufficient heat can be supplemented in a timely manner to accelerate the reaction rate, thereby shortening the overall pyrolysis time, increasing the processing capacity of the equipment per unit time, and significantly improving the pyrolysis yield.

[0023] Enhance the system adaptability: The pyrolysis characteristics of oily sludge with different properties and sources vary. The targeted temperature control design in the internal and external collaborative targeted temperature control hot gas transmission component can flexibly adjust the temperature and flow rate of the hot gas according to the actual situation of the oily sludge at different positions in the inner cylinder to adapt to diverse pyrolysis requirements; whether it is treating sludge with high viscosity and high oil content or sludge with low oil content and easy pyrolysis, it can ensure that the pyrolysis process proceeds efficiently and stably, enhancing the adaptability and versatility of the pyrolysis system to different working conditions.

[0024] 3. By specifically solving the root cause of the blockage of the hot gas channel, the hot air oily impurity interception and treatment component of the present invention can bring the following benefits to the overall work of the oily sludge pyrolysis treatment from multiple dimensions: extend the service life of the equipment: effectively intercept unburned carbon particles, ash and tar substances, avoid the long-term erosion and corrosion of the inner wall of the hot air pipeline by these impurities, reduce the problems of pipeline wear and thinning caused by impurity deposition, lower the risk of pipeline leakage, extend the service life of the hot air pipeline and related equipment, and reduce the equipment replacement frequency and maintenance cost.

[0025] Ensure the stability of pyrolysis efficiency: Prevent impurities from depositing and blocking in the hot air pipeline, ensure the smooth flow of hot gas, and stably maintain the heating temperature and heat supply required inside the inner cylinder; avoid the problems of decreased heat transfer efficiency and uneven heating of the inner cylinder caused by channel blockage, ensure that the oily sludge reacts under stable pyrolysis conditions, thereby maintaining the stability and continuity of the pyrolysis treatment efficiency, and increasing the processing capacity of the equipment per unit time.

[0026] Enhance system security: Prevent the abnormal increase in internal pressure caused by the blockage of the hot air duct, reduce the probability of safety accidents such as pipeline rupture and leakage due to excessive pressure; at the same time, reduce the accumulation of unburned carbon particles and flammable impurities in the channel, reduce the fire hazard, ensure the safety of the pyrolysis treatment system operation, and provide reliable protection for operators and the production environment.

[0027] Improve energy utilization efficiency: The smooth flow of hot air enables heat to be transferred from the hot air duct to the inner cylinder more efficiently, reducing heat loss caused by channel blockage, and improving the energy utilization efficiency; under the condition of achieving the same pyrolysis effect, reduce the consumption of fuel energy.

[0028] 4. The present invention designs the filter sieve plate to achieve dynamic interception, centrifugal interception for temporary impurity storage and flow disturbance, which brings the following significant benefits to the pyrolysis treatment of oily sludge in multiple aspects: Efficient impurity interception: The dynamic interception method can more comprehensively intercept impurities in the hot air through the rotating filter sieve plate; compared with static interception, it reduces the fixed interception dead angle in the static interception method, can effectively capture impurities in all directions, greatly improves the impurity interception efficiency, and reduces the possibility of unburned carbon particles, ash and tar substances entering the downstream of the hot air duct.

[0029] Effective impurity storage: Use centrifugal force to throw impurities away from the center of the filter sieve plate and temporarily restrict and store them in the annular groove, realizing the temporary storage of impurities; the above method avoids the large accumulation of impurities on the filter sieve plate, prevents the influence on the filtering effect and hot air flow due to excessive impurities; and the design of the annular groove provides a relatively stable storage space, can accommodate a certain amount of impurities, and reduces the frequency of cleaning impurities.

[0030] Optimize hot air distribution: The rotating filter sieve plate performs a flow disturbance action on the transmitted hot air, making the distribution of hot air in the filter sieve plate more uniform; the flow disturbance effect breaks the laminar state of the hot air, promotes the mixing of the hot air, enables each part of the inner cylinder to be heated more evenly, further solves the problem of uneven heating of the inner cylinder, reduces the phenomenon of insufficient pyrolysis or over-pyrolysis caused by local overheating or overcooling, and improves the consistency and quality of the pyrolysis products.

[0031] Reduce maintenance difficulty: Impurities can be effectively collected and temporarily stored, and the rotation of the filter sieve plate helps to prevent impurities from adhering to the sieve plate, making the work of cleaning impurities more convenient; at the same time, the hot air duct adopts a segmented connection method, and in terms of maintenance, maintenance personnel only need to regularly clean the impurities in specific pipelines and the annular groove of the filter sieve plate, without frequently disassembling and cleaning complex filtering devices, reducing the maintenance workload and maintenance time, and improving the operation efficiency and maintainability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the appearance view of the present invention.

[0033] Figure 2 This is the top view of the outer cylinder of the present invention after sectioning.

[0034] Figure 3 This is the three-dimensional view of the partial section structure of the outer cylinder in the present invention.

[0035] Figure 4 This is the present invention Figure 3 The enlarged view of the structure at position A in the present invention.

[0036] Figure 5 This is the present invention Figure 3 The enlarged view of the structure at position B in the present invention.

[0037] Figure 6 This is the position distribution diagram of the main body group and the internal and external collaborative target temperature control hot air transmission component of the present invention.

[0038] Figure 7 This is the main structure diagram of the internal and external collaborative target temperature control hot air transmission component of the present invention.

[0039] Figure 8 This is the working state diagram of the internal and external collaborative target temperature control hot air transmission component of the present invention.

[0040] Figure 9 This is the position distribution diagram of the main body group and the hot air oil-containing impurity interception and treatment component of the present invention.

[0041] Figure 10 This is the disassembly diagram of the hot air oil-containing impurity interception and treatment component in the present invention.

[0042] Figure 11 This is the sectional view of the hot air oil-containing impurity interception and treatment component of the present invention.

[0043] Figure 12 This is the schematic diagram of the working state of the hot air oil-containing impurity interception and treatment component of the present invention.

[0044] Figure 13 This is the related structure diagram of the corrugated compensator pipe fitting and the hot air pipeline of the present invention.

[0045] In the figure: 1. Support frame; Oil-containing sludge pyrolysis efficiency improvement mechanism: 2. Main body group; 201. Bevel gear drive group; 202. Burner external cylinder column; 203. Outer cylinder; 204. Auxiliary connecting piece; 205. L-shaped pipeline; 206. Inner cylinder; 207. Hot air pipeline.

[0046] 3. Internal and external collaborative targeted temperature-controlled hot air transmission component: 301. U-shaped frame; 302. Disturbing chute; 303. Adapter; 304. Hinge; 305. Bladder column; 306. Counterweight chain; 307. Corrugated compensating pipe fitting; 308. Metal hose; 309. Flow control valve; 310. Heat dissipation fin.

[0047] 4. Hot air oil-containing impurity interception and treatment component: 401. Threaded ring; 402. Guide ring; 403. Rotating ring; 404. Spring; 405. Embedded ring; 406. Gear ring; 407. Filter sieve plate; 408. Annular groove; 409. Auxiliary frame; 410. Screw. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0050] Embodiment: Please refer to Figures 1 to 4 、 Figures 6 to 8 As shown in the figure: To solve the problems mentioned in the technical solution, the embodiment of the present application provides a pyrolysis treatment device for oily sludge, including: a support frame 1, and further including: an oily sludge pyrolysis efficiency improvement mechanism, the oily sludge pyrolysis efficiency improvement mechanism includes a main body group 2, an internal and external collaborative targeted temperature-controlled hot air transmission component 3, and a hot air oil-containing impurity interception and treatment component 4. The internal and external collaborative targeted temperature-controlled hot air transmission component 3 and the hot air oil-containing impurity interception and treatment component 4 are both arranged in the main body group 2.

[0051] The main body group 2 includes a bevel gear drive group 201 fixedly connected to the support frame 1. On one side of the bevel gear drive group 201, there is an externally engaged transmission connection with an outer cylinder 203. The outer end of the column shaft of the outer cylinder 203 is rotatably connected to a burner external connection cylinder column 202. The bevel gear drive group 201 includes a drive group body composed of two lateral bevel gears, and large and small double gear rings located on the side wall of the outer cylinder 203. An auxiliary connecting piece 204 is fixedly connected to the inner wall of the outer cylinder 203. Symmetrically fixed to the auxiliary connecting piece 204 are L-shaped pipes 205. One end of the L-shaped pipe 205 is located inside the burner external connection cylinder column 202, and the other end is located inside the outer cylinder 203. An inner cylinder 206 is fixedly connected to the inner wall of the auxiliary connecting piece 204. A hot air pipe 207 is fixedly connected to the L-shaped pipe 205, and the hot air pipe 207 is arranged around the inner cylinder 206. The internal and external collaborative targeted temperature control hot gas transmission assembly 3 is used for fixed-point temperature control, assisting the pyrolysis of oily sludge, and ensuring the uniform heating of the oily sludge during pyrolysis. The internal and external collaborative targeted temperature control hot gas transmission assembly 3 includes a hinge piece 304. The internal and external collaborative targeted temperature control hot gas transmission assembly 3 also includes a U-shaped frame 301 fixedly connected to the inner wall of the inner cylinder 206. Disturbing inclined slots 302 are symmetrically arranged on the U-shaped frame 301. The outer end of the U-shaped frame 301 is rotatably connected to a swivel joint 303. The hinge piece 304 is rotatably connected to the swivel joint 303. A bladder column 305 is fixedly connected to the hinge piece 304. One end of the bladder column 305 away from the hinge piece 304 is hinged with a counterweight chain 306. A corrugated compensating pipe fitting 307 is fixedly connected to the inner cylinder 206. A metal hose 308 is fixedly communicated with the corrugated compensating pipe fitting 307. A flow control valve 309 is fixedly connected inside the bladder column 305. Heat dissipation fins 310 are equidistantly fixedly connected to the bladder column 305.

[0052] Among them: The oily sludge pyrolysis efficiency improvement mechanism can achieve fixed-point temperature control, assist the pyrolysis of oily sludge, ensure the uniform heating of the oily sludge during pyrolysis, and reduce the influence of the attachment of oily impurities on the heat transfer pipeline on the pyrolysis efficiency.

[0053] The bevel gear drive group 201 includes: a drive group body composed of two lateral bevel gears. In the present invention, two drive group bodies are symmetrically arranged; in addition, it also includes large and small double gear rings located on the side wall of the outer cylinder; the large and small double gear rings are respectively meshed and matched with the two lateral bevel gears mentioned above; it should be noted that during operation, only one of the two drive group bodies will operate, and the other will be used as a stable auxiliary to achieve one-way rotation. Conversely, the same is true.

[0054] The L-shaped pipe 205 is used for assisting the hot gas transmission cycle manufactured by an external burner. In this way, the L-shaped pipe 205 and the hot air pipe 207 can cooperate to heat the inner cylinder 206.

[0055] The internal and external collaborative target temperature control hot air transmission component 3 is used for fixed-point temperature control, assisting the pyrolysis of oily sludge, and ensuring the uniform heating of oily sludge during pyrolysis.

[0056] The disturbance chute 302 can assist in the movement and transfer of the oily sludge under the action of the weight of the oily sludge during the rotation of the inner cylinder 206.

[0057] A viscosity sensor and a temperature sensor are installed at the bottom end of the bladder column 305, which are used to feedback the viscosity of the oily sludge at the position where the sensor is located during the working process, so as to conduct subsequent temperature regulation.

[0058] The corrugated compensating pipe fitting 307 can absorb the displacement generated by thermal expansion, effectively alleviating the influence of thermal stress on the connection part.

[0059] The inner cylinder 206 is provided with a through auxiliary groove, which is used to assist in the placement of the auxiliary pipe connecting the corrugated compensating pipe fitting 307 and the hot air pipeline 207. For reference, please refer to the appendix Figure 13 .

[0060] The metal hose 308 is made of an alloy material with high flexibility and low expansion coefficient, such as Inconel alloy, which can better adapt to the change of thermal stress.

[0061] The flow control valve 309 can assist in regulating the amount of hot air entering the bladder column 305 per unit time by adjusting the opening and closing size.

[0062] The heat dissipation fins 310 are used for auxiliary heat conduction.

[0063] Further embodiments: Please refer to Figure 3 , Figure 5 , Figures 9 to 13 As shown in the figure: The hot air oily impurity interception and treatment component 4 is used to reduce the influence of the attachment of oily impurities on the heat transfer pipeline on the pyrolysis efficiency. The hot air oily impurity interception and treatment component 4 includes the inner cylinder 206. The hot air oily impurity interception and treatment component 4 further includes a threaded ring 401 threadedly connected to the hot air pipeline 207. A guide ring 402 is fixedly connected to the inner cavity of the threaded ring 401. A rotating ring 403 is rotatably connected to the guide ring 402. Springs 404 are fixedly connected to the rotating ring 403 at equal intervals. An inner embedded ring 405 is rotatably connected to the inner cavity of the threaded ring 401. One end of the inner embedded ring 405 away from the spring 404 is fixedly connected to a gear ring 406. A filter sieve plate 407 is fixedly connected to the gear ring 406. An annular groove 408 is opened on the filter sieve plate 407. An auxiliary bracket 409 is fixedly connected to the inner wall of the inner cylinder 206. A screw 410 is rotatably connected to the auxiliary bracket 409.

[0064] Among them: The hot air oily impurity interception and treatment component 4 is used to reduce the influence of the attachment of oily impurities on the heat transfer pipeline on the pyrolysis efficiency.

[0065] There are multiple sets of hot air oil - containing impurity interception and treatment components 4, which can divide the hot air pipeline 207 into multiple segments. Specifically, the number can be increased or decreased according to actual usage. The segmented design is conducive to the cleaning of impurities on the inner wall of the pipeline and replacement and maintenance.

[0066] The spring 404 is used to provide stroke redundancy for the installation of the gear ring 406.

[0067] The embedded ring 405 is adapted to the annular groove opened in the threaded ring 401.

[0068] The gear ring 406 is used in cooperation with the screw 410.

[0069] There are multiple sets of hot air oil - containing impurity interception and treatment components 4. Starting from the hot air source, the aperture of the filter screen 407 in the hot air oil - containing impurity interception and treatment component 4 that is farther away from the hot air source is smaller, so as to achieve impurity partition filtration; effectively realizing segmented filtration.

[0070] The annular groove 408 provides a temporary space for the collection of impurities under the action of centrifugal force during the rotation of the filter screen 407.

[0071] The working principle of all the contents in the above - mentioned embodiments is as follows: The following is the working process of the main body group 2 and the internal - external collaborative target - controlled temperature hot - air transmission component 3: First, connect the burner external cylinder column 202 to an external burner. Then, start the main body group 2. After starting, the two lateral bevel gears in the bevel gear drive group 201 will be engaged with the large and small double gear rings on the outer wall of the outer cylinder and driven by the drive shaft fixedly connected to the lateral bevel gears and arranged in the support frame 1 to make the outer cylinder 203 rotate. And because the inner cylinder 206 is fixedly connected to the outer cylinder 203 through the auxiliary connecting piece 204, and the L - shaped pipeline 205 is fixedly connected to the auxiliary connecting piece 204, reference can be made to the attached Figure 3 To the attached Figure 4 , at this time, except for the burner external cylinder column 202 connected to the burner, all other components rotate under the drive of the bevel gear drive group 201; it should be noted that the L - shaped pipeline 205 fixedly connected to the auxiliary connecting piece 204 also rotates, but it does not affect the L - shaped pipeline 205 receiving the heating gas introduced by the burner external cylinder column 202.

[0072] Furthermore, since it is known that the bladder column 305 is connected to the hot air duct 207 through the corrugated compensating pipe fitting 307 and the flexible metal hose 308, after the L-shaped duct 205 receives hot air perfusion into the hot air duct 207, the bladder column 305 will also be filled with hot air. And further, with the rotation of the inner cylinder 206, with the assistance of the adapter 303 rotatably connected to the U-shaped frame 301 and the hinge 304 hinged to the adapter 303, the bladder column 305 can be driven by the counterweight chain 306 to swing disorderly during the rotation of the inner cylinder 206. During this swinging process, the counterweight chain 306, the bladder column 305, and the heat dissipation fins 310 on the bladder column 305 will all disturb the oily sludge in the inner cylinder 206 and transfer heat to the disturbed oily sludge during this process. During this process, the disturbance chute 302 also provides disturbance assistance.

[0073] Furthermore, as known, a viscosity sensor and a temperature sensor are installed at the bottom end of the bladder column 305 to feedback the viscosity of the oily sludge at the position where the sensor is located during the working process, so as to perform subsequent temperature regulation. If during the disturbance of the oily sludge, the temperature sensor and the viscosity sensor at the bottom end of the bladder column 305 detect that the temperature is too low or the viscosity is too high at this time, the opening and closing degree of the flow control valve 309 in the bladder column 305 will be controlled, so as to control the amount of hot air entering the bladder column 305 per unit time, so as to perform temperature control and achieve precise targeted temperature control.

[0074] Furthermore, through the design of the internal and external collaborative targeted temperature control hot air transmission component 3, the following benefits can be brought to the overall work: improving the pyrolysis efficiency; through a more efficient heat transfer method in which the bladder column 305 is effectively connected to the hot air duct 207, the oily sludge in the inner cylinder 206 can be heated more quickly and evenly, accelerating the pyrolysis reaction, thereby improving the overall pyrolysis efficiency, shortening the pyrolysis time, and increasing the processing capacity of the equipment.

[0075] Improving the quality of pyrolysis products: Uniform heating avoids the situation of local overheating or overcooling of the oily sludge, reduces the quality difference of pyrolysis products caused by uneven heating, makes the quality of gas, liquid and solid products produced by pyrolysis more stable and high-quality, and is conducive to subsequent separation and recycling.

[0076] Reducing the equipment maintenance cost: Uniform heating helps to reduce the problems of deformation and wear of the inner cylinder 206 caused by local overheating, extends the service life of the inner cylinder 206 and other related components, reduces the maintenance and replacement frequency of the equipment, and thus reduces the equipment maintenance cost.

[0077] Reduce environmental pollution: A more efficient pyrolysis process can enable more thorough treatment of oily sludge, reduce the emission of incompletely pyrolyzed organic matter, and lower the environmental pollution risk. At the same time, a stable pyrolysis process also helps reduce the occurrence of accidental leakage accidents caused by unstable operation.

[0078] Furthermore, through the design of the bladder column 305 and the flow control valve 309, the following benefits can be brought to the temperature control work in the inner cylinder 206: significantly improve the quality of pyrolysis products; by installing a viscosity sensor and a temperature sensor at the bottom of the bladder column 305, the pyrolysis requirements of oily sludge in different regions of the inner cylinder 206 can be accurately identified, and hot gas with an appropriate flow rate can be targeted for delivery, effectively avoiding the problems of insufficient pyrolysis or over-pyrolysis due to uneven heating in local areas. For example, in areas where the oily sludge accumulates thickly, increasing the supply of hot gas can ensure sufficient pyrolysis of the sludge in this area; while in areas where the pyrolysis reaction is relatively fast, reducing the input of hot gas can prevent over-pyrolysis of the sludge. This makes the composition of the pyrolysis products more uniform and stable, greatly improving the quality of gas, liquid, and solid products, and enhancing the value of resource recovery and utilization.

[0079] Greatly improve the pyrolysis yield: This design can dynamically adjust the hot gas supply according to the real-time pyrolysis state of oily sludge, enabling each part of the sludge in the inner cylinder 206 to be in the optimal pyrolysis temperature environment, fully stimulating the pyrolysis reaction. Especially for areas where the pyrolysis reaction is relatively slow, sufficient heat can be supplemented in a timely manner to accelerate the reaction rate, thereby shortening the overall pyrolysis time, increasing the processing capacity of the equipment per unit time, and significantly improving the pyrolysis yield.

[0080] Enhance the system adaptability: The pyrolysis characteristics of oily sludge with different properties and sources vary. The targeted temperature control design in the internal and external collaborative targeted temperature control hot gas transmission component 3 can flexibly adjust the temperature and flow rate of hot gas according to the actual situation of oily sludge at different positions in the inner cylinder 206 to adapt to diverse pyrolysis requirements. Whether it is treating sludge with high viscosity and high oil content or sludge with low oil content and easy pyrolysis, it can ensure the efficient and stable progress of the pyrolysis process, enhancing the adaptability and versatility of the pyrolysis system to different working conditions.

[0081] Please refer to the above working process Figures 1 to 4 , Figures 6 to 8 .

[0082] The following is the working process of the hot air oily impurity interception and treatment component 4: Furthermore, when the internal and external collaborative targeted temperature control hot gas transmission component 3 pyrolyzes the oily sludge in the inner cylinder 206, the hot air oily impurity interception and treatment component 4 will treat the hot air impurities introduced into the hot air pipeline 207. Specifically, the hot air transported from the L-shaped pipeline 205 to the hot air pipeline 207 will pass through the filter screen plate 407 installed on the gear ring 406, and at this time, the filter screen plate 407 will filter the hot air impurities.

[0083] Furthermore, since the gear ring 406 meshes with the screw 410 on the auxiliary frame 409, the screw 410 can drive the gear ring 406 to rotate. At this time, the embedded ring 405 on the side wall of the gear ring 406 will rotate stably with the assistance of the spring 404, the rotating ring 403, and the guiding ring 402. At this time, the filter sieve plate 407 installed on the gear ring 406 will perform a dynamic rotating filtration action. Further, during the rotation of the filter sieve plate 407, the impurities doped in the hot air will be thrown to the outer periphery of the filter sieve plate 407 under the centrifugal force of the rotation of the filter sieve plate 407 after impacting the central part of the filter sieve plate 407, and thus be temporarily restricted in the annular groove 408 opened on the filter sieve plate 407.

[0084] Furthermore, the hot air oil-containing impurity interception and treatment component 4 can bring the following benefits to the overall work of the oil-containing sludge pyrolysis treatment from multiple dimensions by specifically solving the root cause of the blockage of the hot gas channel: extending the service life of the equipment; effectively intercepting unburned carbon particles, ash, and tar substances, preventing these impurities from scouring and corroding the inner wall of the hot air pipeline 207 for a long time, reducing the problems of pipeline wear and thinning caused by impurity deposition, reducing the risk of pipeline leakage, extending the service life of the hot air pipeline 207 and related equipment, and reducing the equipment replacement frequency and maintenance cost.

[0085] Guarantee the stability of pyrolysis efficiency: prevent impurities from depositing in the hot air pipeline 207 and causing blockage, ensure that the hot gas can flow smoothly, and stably maintain the heating temperature and heat supply required by the inner cylinder 206; avoid the problems of decreased heat transfer efficiency and uneven heating of the inner cylinder 206 caused by channel blockage, ensure that the oil-containing sludge reacts under stable pyrolysis conditions, and thus maintain the stability and continuity of the pyrolysis treatment efficiency, and improve the unit time processing capacity of the equipment.

[0086] Enhance the system safety: prevent the abnormal increase of the internal pressure caused by the blockage of the hot air pipeline 207, reduce the probability of safety accidents such as pipeline rupture and leakage caused by excessive pressure; at the same time, reduce the accumulation of unburned carbon particles and flammable impurities in the channel, reduce the fire hazard, guarantee the safety of the operation of the pyrolysis treatment system, and provide reliable guarantee for the operators and the production environment.

[0087] Improve the energy utilization efficiency: the smooth flow of the hot gas enables the heat to be transferred from the hot air pipeline 207 to the inner cylinder 206 more efficiently, reduces the heat loss caused by channel blockage, and improves the energy utilization efficiency; under the condition of achieving the same pyrolysis effect, reduces the consumption of fuel energy.

[0088] Furthermore, by designing the filter sieve plate 407 to achieve dynamic interception, centrifugal interception for temporary impurity storage, and flow disturbance, the following significant benefits are brought to the pyrolysis treatment of oily sludge in multiple aspects: efficient impurity interception; the dynamic interception method can more comprehensively intercept impurities in the hot gas through the rotating filter sieve plate 407; compared with static interception, it reduces the fixed interception dead corners in the static interception method, can effectively capture impurities in all directions, greatly improves the impurity interception efficiency, and reduces the possibility of unburned carbon particles, ash, and tar substances entering the downstream of the hot air pipeline 207.

[0089] Effective impurity storage: The centrifugal force is used to throw the impurities away from the center of the filter sieve plate 407 and temporarily store them in the annular groove 408, realizing the temporary storage of impurities; the above method avoids the large accumulation of impurities on the filter sieve plate 407, prevents the filtration effect and hot gas flow from being affected due to excessive impurities; and the design of the annular groove 408 provides a relatively stable storage space, can accommodate a certain amount of impurities, and reduces the frequency of cleaning impurities.

[0090] Optimize the hot air distribution: The rotating filter sieve plate 407 performs a flow disturbance action on the transmitted hot air, making the distribution of the hot air in the filter sieve plate 407 more uniform; the flow disturbance effect breaks the laminar flow state of the hot gas, promotes the mixing of the hot gas, enables each part of the inner cylinder 206 to be heated more evenly, further solves the problem of uneven heating of the inner cylinder 206, and reduces the phenomena of insufficient pyrolysis or over-pyrolysis caused by local overheating or over-cooling, improving the consistency and quality of the pyrolysis products.

[0091] Reduce the maintenance difficulty: The impurities can be effectively collected and temporarily stored, and the rotation of the filter sieve plate 407 helps to prevent the impurities from adhering to the sieve plate, making the work of cleaning impurities more convenient; at the same time, the hot air pipeline 207 adopts a segmented connection method. In terms of maintenance, the maintenance personnel only need to regularly clean the impurities in the specific pipeline and the annular groove 408 of the filter sieve plate 407, without frequently disassembling and cleaning complex filtering devices, reducing the maintenance workload and maintenance time, and improving the operation efficiency and maintainability of the equipment.

[0092] Please refer to the above working process Figure 3 、 Figure 5 、 Figures 9 to 13 。

[0093] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0094] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pyrolysis treatment device for oily sludge, comprising: The support frame (1) is characterized in that it also includes: an oily sludge pyrolysis efficiency improvement mechanism, the oily sludge pyrolysis efficiency improvement mechanism includes a main body group (2), an internal and external coordinated targeted temperature control hot air transmission component (3), and a hot air oily impurity interception and processing component (4), the internal and external coordinated targeted temperature control hot air transmission component (3) and the hot air oily impurity interception and processing component (4) are both arranged in the main body group (2); the internal and external coordinated targeted temperature control hot air transmission component (3) is used for fixed-point temperature control to assist the pyrolysis of the oily sludge and ensure the uniformity of heating during the pyrolysis of the oily sludge; the hot air oily impurity interception and processing component (4) 4) Used to reduce the influence of oil-containing impurities attached to the heat transfer pipeline on the pyrolysis efficiency; the internal and external coordinated targeted temperature control hot air transmission component (3) comprises a hinge (304), a capsule column (305) is fixedly connected to the hinge (304), and a counterweight chain (306) is hinged at one end of the capsule column (305) away from the hinge (304); the hot air oil-containing impurity interception and processing component (4) comprises an inner cylinder (206), a corrugated compensation pipe (307) is fixedly connected to the inner cylinder (206), and a metal hose (308) is fixedly connected to the corrugated compensation pipe (307).

2. The pyrolysis treatment device for oily sludge according to claim 1, characterized in that: The main body group (2) comprises a bevel gear drive group (201) fixedly connected to the support frame (1); one side of the bevel gear drive group (201) is meshingly connected to an outer cylinder (203); the outer column shaft end of the outer cylinder (203) is rotatably connected to a burner external cylinder column (202); the bevel gear drive group (201) comprises a drive group body composed of two lateral bevel gears, and large and small double gear rings located on the side wall of the outer cylinder (203).

3. The pyrolysis treatment device for oily sludge according to claim 2, wherein: An auxiliary connecting piece (204) is fixedly connected to the inner wall of the outer tube (203); an L-shaped pipe (205) is symmetrically fixedly connected to the auxiliary connecting piece (204); one end of the L-shaped pipe (205) is located in the burner external connection tube column (202), and the other end is located in the outer tube (203); the inner tube (206) is fixedly connected to the inner wall of the auxiliary connecting piece (204); a through auxiliary through groove is provided on the inner tube (206); a hot air pipe (207) is fixedly connected to the L-shaped pipe (205); and the hot air pipe (207) is arranged around the inner tube (206).

4. The pyrolysis treatment device for oily sludge according to claim 1, wherein: The internal and external coordinated targeted temperature-controlled hot gas transmission component (3) comprises a U-shaped frame (301) fixedly connected to the inner wall of the inner cylinder (206), the U-shaped frame (301) is symmetrically provided with disturbance skew grooves (302), the outer end of the U-shaped frame (301) is rotatably connected to an adapter (303), and the hinge (304) is rotatably connected to the adapter (303).

5. The pyrolysis treatment device for oily sludge according to claim 1, wherein: A flow control valve (309) is fixedly connected inside the capsule column (305), and heat dissipation fins (310) are fixedly connected at equal intervals on the capsule column (305).

6. The pyrolysis treatment device for oily sludge according to claim 3, characterized in that: The hot air oil and impurity interception and treatment component (4) includes a threaded ring (401) threadedly connected to the hot air duct (207). A guiding ring (402) is fixedly connected to the inner cavity of the threaded ring (401). A rotating ring (403) is rotatably connected to the guiding ring (402), and springs (404) are fixedly connected to the rotating ring (403) at equal intervals.

7. The pyrolysis treatment device for oily sludge according to claim 6, characterized in that: An inner embedded ring (405) is rotatably connected to the inner cavity of the threaded ring (401). A gear ring (406) is fixedly connected to one end of the inner embedded ring (405) away from the spring (404). A filter sieve plate (407) is fixedly connected to the gear ring (406), and an annular groove (408) is formed in the filter sieve plate (407).

8. The pyrolysis treatment device for oily sludge according to claim 1, wherein: An auxiliary bracket (409) is fixedly connected to the inner wall of the inner cylinder (206), and a screw rod (410) is rotatably connected to the auxiliary bracket (409).

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