Briquetting and slag breaking device and method for pyrolysis furnace

Abstract

The application discloses a sludge distribution and slag breaking device and method for a pyrolysis furnace, which comprises a hollow support fixed in the pyrolysis furnace, a transmission mechanism arranged at the top of the hollow support, a lifting adjuster arranged in the hollow support, a support rod arranged below the lifting adjuster, and a slag breaking rod vertically connected to the bottom of the support rod, wherein the transmission mechanism comprises a motor, a cylindrical speed reducer connected to the motor through a shaft coupling, and a turbine speed reducer arranged above the motor and fixed to the top of the hollow support; the lifting adjuster comprises a worm matched with the turbine speed reducer, a counterweight arranged above the worm, and a limit switch seat arranged above the counterweight; a sludge distribution disc is mounted to the outer side of the support rod; and a plurality of slag breaking heads are arranged at the bottom of the slag breaking rod; the sludge distribution and slag breaking device can uniformly distribute sludge and break slag, and solves the problems of high-temperature coking sludge hardness and uneven combustion caused by high temperature in the pyrolysis furnace and easy coking of sludge raw materials.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment, and particularly relates to a sludge feeding and breaking device and method for a pyrolysis furnace. Background Technology

[0002] With the increasing population and global urbanization, the amount of urban sewage generated is growing rapidly, leading to a dramatic increase in the quantity of sludge, a byproduct of urban sewage treatment. Sewage sludge is a heterogeneous substance composed of organic debris, microorganisms, inorganic particles, and colloids. It contains toxic organic matter, pathogenic microorganisms, and heavy metals, posing a serious threat to the environment. As sludge production increases dramatically, its treatment is receiving increasing attention. Currently, the main sludge treatment processes include deep dewatering and drying, composting, and incineration. Deep dewatering and drying reduces the water content of sludge through mechanical and chemical methods, and most of it is then landfilled. While this achieves some volume reduction, it does not truly realize resource recovery. Sludge composting can achieve resource recovery, but due to high investment, large land area requirements, high operating costs, and the potential for foul odors, coupled with the environmental risks posed by heavy metals in the sludge, it cannot be used for agricultural planting and can only be used as fertilizer for landscaping, making such projects difficult to implement. Sludge incineration requires external energy, and the dioxins produced during incineration require strict end-of-pipe environmental protection measures for treatment. It has high operating costs, causes great harm to human health, and causes serious environmental pollution.

[0003] In existing technologies, sludge pyrolysis furnace systems can completely solve the problem of sludge treatment, achieving sludge reduction, harmlessness, and resource recovery. However, in the sludge pyrolysis furnace, after the sludge undergoes a dry distillation reaction under high-temperature incandescent gas, the main residues are coke and a small amount of non-combustible materials such as clay. These non-combustible materials undergo an oxidation-reduction reaction at high temperatures of 1000–1300℃ to form inorganic slag. The slag at high temperatures has a high adhesion index of up to 50, a high-temperature slag diameter of 300 mm–400 mm, and high hardness, leading to uneven sludge distribution and incomplete combustion within the furnace. The slag often stagnates in the middle of the gasifier, hindering effective sludge pyrolysis and slag removal. Therefore, there is an urgent need for a device that can uniformly distribute and break up sludge to solve the problem of high-temperature slag formation in sludge pyrolysis furnaces. Summary of the Invention

[0004] To address some or all of the technical problems existing in the prior art, the present invention provides a sludge-feeding and slag-breaking device and method for a pyrolysis furnace.

[0005] The sludge-breaking device for a pyrolysis furnace provided by the present invention includes a hollow support fixed inside the pyrolysis furnace, a transmission mechanism disposed on the top of the hollow support, a lifting adjuster disposed inside the hollow support, a support rod disposed below the lifting adjuster, and a sludge-breaking rod vertically connected to the bottom of the support rod, wherein: The transmission mechanism includes a motor, a cylindrical reducer connected to the motor via a coupling, and a turbine reducer disposed above the motor and fixed to the top of the hollow support. The lifting adjuster includes a worm gear connected to and matched to the worm gear reducer, a counterweight block disposed above the worm gear, and a limit switch seat disposed above the counterweight block. The limit switch seat is electrically connected to the motor. The support rod is connected to the bottom of the worm and a mud-distributing plate is installed on its outer side. A liquid seal pipe is provided between the mud-distributing plate and the worm. A sealing sleeve is provided below the liquid seal pipe. Multiple slag-breaking heads are provided at the bottom of the slag-breaking rod. The hollow support includes a water storage section and a mud inlet connected to each other. The mud distribution plate is located directly below the mud inlet. The liquid seal tube is sleeved on the outside of the support rod inside the mud inlet and fixed to the top of the mud inlet.

[0006] Furthermore, in the aforementioned sludge-breaking device for a pyrolysis furnace, water supply pipes are sequentially connected within the worm gear, the support rod, the sludge-breaking rod, and the sludge-breaking head. A first pipe gap exists between the worm gear and the water supply pipe; a second pipe gap exists between the support rod and the water supply pipe; a third pipe gap exists between the sludge-breaking rod and the water supply pipe; and a fourth pipe gap exists between the sludge-breaking head and the water supply pipe. The first, second, third, and fourth pipe gaps are interconnected. A water inlet pipe is located above the counterweight. The top of the water supply pipe within the worm gear is connected to the water inlet pipe, and the water supply pipe is connected to the fourth pipe gap. Multiple drainage holes are opened on the support rod within the water storage section. The second pipe gap is connected to the water storage section through the drainage holes. A drainage pipe is opened on the side of the water storage section.

[0007] Furthermore, in the above-mentioned mud-dispensing and slag-breaking device for a pyrolysis furnace, the liquid seal pipe includes an inner pipe and an outer pipe that are interconnected. The outer pipe is disposed outside the inner pipe. The inner pipe is fixed to the outer wall of the support rod by fasteners. One end of the outer pipe is fixed to the top of the mud inlet by fasteners, and the other end is sealed to the sealing sleeve. The liquid seal pipe contains sealing liquid.

[0008] In one specific embodiment, in the above-mentioned mud-closing and slag-breaking device for a pyrolysis furnace, the sealing liquid is water.

[0009] Furthermore, in the above-mentioned sludge feeding and slag breaking device for pyrolysis furnace, the water inlet pipe interface is matched and connected to the steam-water separator inlet, the drain pipe interface is matched and connected to the steam-water separator outlet, and the sludge inlet is matched and connected to the sludge feeding inlet.

[0010] In one specific embodiment, in the above-mentioned sludge-breaking device for a pyrolysis furnace, a plurality of sludge-breaking heads are threadedly connected to the sludge-breaking rod, and the plurality of sludge-breaking heads are staggered at a predetermined angle.

[0011] In one specific embodiment, in the above-mentioned slag-breaking device for pyrolysis furnace, the slag-breaking head is made of nickel-based alloy Incoloy 825, and its surface is plasma-sprayed with hard alloy cobalt-based No. 1.

[0012] Furthermore, in the above-mentioned mud-spreading and slag-breaking device for a pyrolysis furnace, the included angle between the mud-spreading disc and the axis of the support rod is a preset angle and matches the length of the slag-breaking rod.

[0013] In one specific embodiment, in the above-mentioned mud-spreading and slag-breaking device for a pyrolysis furnace, a plurality of drainage holes are opened on the outer wall of the support rod above the inner tube.

[0014] The sludge-dissolving method for pyrolysis furnaces provided by this invention includes: Step 1: Connect the water inlet pipe to the steam-water separator inlet, and connect the drain pipe to the steam-water separator outlet; Step 2: Fix the hollow support in the designated position inside the pyrolysis furnace, then adjust the weight of the counterweight according to the high-temperature slagging of the sludge, adjust the height of the worm gear through the turbine reducer, and then adjust the height of the slag breaking rod so that the slagging in the middle of the pyrolysis furnace is within the effective stroke of the slag breaking rod; Step 3: After the limit switch seat detects that the height of the slag breaking rod is within the specified stroke, the motor is started and the transmission mechanism starts to operate. Then, in conjunction with the lifting adjuster, the support rod is controlled to rotate at a preset speed, thereby driving the mud spreading plate and the slag breaking rod to rotate at a preset speed. Step 4: The shaped sludge is filled into the sludge inlet through the sludge feeding port. Then the sludge falls from the lower end of the hollow support into the rotating sludge distribution plate. It is evenly distributed to the position of the slag breaking rod through the sludge distribution plate. The rotating slag breaking rod is used to stir and break the sludge. The height of the slag breaking rod can also be adjusted by increasing or decreasing the weight of the counterweight to break the high-temperature coking sludge. Step 5: After the mud-breaking and slag-breaking work is completed, adjust the weight of the counterweight block, adjust the height of the worm gear through the turbine reducer, and then adjust the height of the slag-breaking rod so that the slag-breaking rod is outside the effective stroke. After the limit switch seat detects that the height of the slag-breaking rod is outside the specified stroke, turn off the motor. Finally, disconnect the water inlet pipe from the steam-water separator inlet and the drain pipe from the steam-water separator outlet.

[0015] The sludge-dispensing and slag-breaking device and method for pyrolysis furnaces of the present invention have the following advantages and positive effects: (1) Through the cooperation between the transmission mechanism and the lifting regulator, the height of the slag breaking rod can be flexibly adjusted by extending and retracting according to the high temperature slag formation of sludge in the pyrolysis furnace. Furthermore, by driving the rotation of the worm gear, the mud distribution plate and the slag breaking rod can be rotated, thereby achieving the effect of uniformly distributing sludge and breaking slag. This solves the problem of high temperature coking sludge with high hardness and uneven combustion caused by the high temperature in the sludge pyrolysis furnace and the easy coking of sludge raw materials. (2) By setting up a liquid cooling system with cooling effect, the present invention reduces the working temperature of components such as transmission mechanism, lifting regulator, support rod, mud plate, slag breaking rod, and slag breaking head, so that each component is heated evenly. By reducing the temperature of the slag breaking head, the wear of the slag breaking head is greatly reduced. Moreover, the slag breaking head is easy to disassemble and assemble. When the slag breaking head is severely worn, only a new slag breaking head needs to be replaced. In addition, a secondary seal is formed by the sealing sleeve and the liquid sealing pipe, which prevents the gas in the pyrolysis furnace from overflowing upward to the transmission mechanism. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the sludge-dissolving and slag-breaking device for a pyrolysis furnace according to the present invention. Figure 2 This is a diagram showing the usage state of the slag breaking rod at the top of the stroke in the slag breaking device for a pyrolysis furnace of the present invention. Figure 3 This is a side view of the sludge-dissolving and slag-breaking device for a pyrolysis furnace according to the present invention; Figure 4 yes Figure 3 A magnified view of a section of section I; Figure 5 yes Figure 1 Enlarged view of a section of section II; Figure 6 yes Figure 2 A magnified view of a section of section III; Explanation of reference numerals in the attached figures: 1-Hollow support, 11-Water storage section, 12-Sludge inlet, 2-Transmission mechanism, 21-Motor, 22-Coupling, 23-Cylindrical reducer, 24-Turbine reducer, 3-Lifting adjuster, 31-Worm gear, 32-Counterweight, 33-Limit switch seat, 4-Support rod, 41-Sealing sleeve, 42-Drainage hole, 5-Slag breaking rod, 6-Slag breaking head, 7-Sludge distribution plate, 8-Liquid seal pipe, 81-Inner pipe, 82-Outer pipe, 9-Water supply pipe, 91-Water inlet pipe, 92-Drainage pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0018] like Figures 1 to 6 As shown, the sludge-breaking device for a pyrolysis furnace of the present invention includes a hollow support 1 fixed inside the pyrolysis furnace, a transmission mechanism 2 disposed on the top of the hollow support 1, a lifting adjuster 3 disposed inside the hollow support 1, a support rod 4 disposed below the lifting adjuster 3, and a sludge-breaking rod 5 vertically connected to the bottom of the support rod 4. The transmission mechanism 2 includes a motor 21, a cylindrical reducer 23 connected to the motor 21 via a coupling 22, and a worm gear reducer 24 disposed above the motor 21 and fixed to the top of the hollow support 1. The lifting adjuster 3 includes a worm gear 31 connected to and matched to the worm gear reducer 24. A counterweight 32 is placed above the worm gear 31, and a limit switch seat 33 is set above the counterweight 32. The limit switch seat 33 is electrically connected to the motor 21. The support rod 4 is connected to the bottom of the worm gear 31 and a mud-distributing plate 7 is installed on its outer side. A liquid seal pipe 8 is set between the mud-distributing plate 7 and the worm gear 31. A sealing sleeve 41 is set below the liquid seal pipe 8. Multiple slag-breaking heads 6 are set at the bottom of the slag-breaking rod 5. The hollow support 1 includes a water storage part 11 and a mud inlet 12 that are connected to each other. The mud-distributing plate 7 is set directly below the mud inlet 12. The liquid seal pipe 8 is sleeved on the outside of the support rod 4 inside the mud inlet 12 and fixed to the top of the mud inlet 12.

[0019] After the motor 21 is reduced in two stages by the cylindrical reducer 23 and the worm gear reducer 24, it drives the worm 31 to rotate, which in turn drives the support rod 4, the mud plate 7, and the slag breaking rod 5 to rotate in sequence. The worm gear 31 can also be raised and lowered by the worm gear reducer 24, which in turn drives the support rod 4 and the slag breaking rod 5 to rise and fall in sequence.

[0020] During the slag breaking process of this device, the vertical displacement of the rotating slag breaking rod 5 can be controlled by adjusting the lifting and lowering of the worm 31, thereby breaking the high-temperature coking sludge. However, when the slag breaking head 6 encounters hard high-temperature coking sludge, it will move upward and deviate from the planned operating trajectory. At this time, the weight of the counterweight 32 is increased. Due to the increased pressure applied by the counterweight 32, the position of the slag breaking rod 5 moves downward and continues to operate according to the planned operating trajectory.

[0021] Furthermore, in the sludge-breaking device for a pyrolysis furnace of the present invention, water supply pipes 9 are sequentially connected inside the worm gear 31, the support rod 4, the sludge-breaking rod 5, and the sludge-breaking head 6. There is a first pipe gap between the worm gear 31 and the water supply pipe 9, a second pipe gap between the support rod 4 and the water supply pipe 9, a third pipe gap between the sludge-breaking rod 5 and the water supply pipe 9, and a fourth pipe gap between the sludge-breaking head 6 and the water supply pipe 9. The first, second, third, and fourth pipe gaps are interconnected. A water inlet pipe 91 is provided above the counterweight 32. The top of the water supply pipe 9 inside the worm gear 31 is connected to the water inlet pipe 91. The water supply pipe 9 is connected to the fourth pipe gap. Multiple drainage holes 42 are provided on the support rod 4 inside the water storage section 11. The second pipe gap is connected to the water storage section through the drainage holes 42. 11. A drain pipe 92 is provided on the side of the water storage section 11. During the sludge distribution and slag breaking process of this device, cooling water is pressurized and flows into the inlet pipe 91 from the steam-water separator inlet. It then flows through the water supply pipe 9 in sequence through the worm gear 31, support rod 4, slag breaking rod 5, and slag breaking head 6. After that, it flows into the fourth pipe gap through the water supply pipe 9 inside the slag breaking head 6 and then flows through the third pipe gap, the second pipe gap, and the first pipe gap in sequence. At this time, the cooling water enters the water storage section 11 through the drain hole 42 and then flows into the steam-water separator outlet from the drain pipe 92. This arrangement forms a liquid cooling system with a cooling effect, which reduces the working temperature of components such as the transmission mechanism 2, lifting regulator 3, support rod 4, sludge distribution plate 7, slag breaking rod 5, and slag breaking head 6, so that each component is heated evenly. Moreover, by reducing the temperature of the slag breaking head 6, the wear of the slag breaking head 6 is greatly reduced.

[0022] Furthermore, in the sludge-dispensing and slag-breaking device for a pyrolysis furnace of the present invention, the liquid seal pipe 8 includes an inner pipe 81 and an outer pipe 82 that are interconnected. The outer pipe 82 is disposed outside the inner pipe 81. The inner pipe 81 is fixed to the outer wall of the support rod 4 by fasteners. One end of the outer pipe 82 is fixed to the top of the sludge inlet 12 by fasteners, and the other end is sealed with a sealing sleeve 41. The liquid seal pipe 8 contains sealing liquid. During the operation of this device, a large amount of gas will be generated in the pyrolysis furnace. The sealing sleeve 41 provided on the support rod 4 prevents this gas from entering the transmission mechanism 2 along the gap between the outer wall of the support rod 4 and the sludge inlet 12 when the support rod 4 moves up and down, thus affecting the normal operation of the device. In addition, the secondary sealing of the liquid seal pipe 8 further prevents the gas in the pyrolysis furnace from overflowing upward.

[0023] In one specific embodiment, in the sludge-closing and slag-breaking device for a pyrolysis furnace of the present invention, the sealing liquid is water. Of course, the sealing liquid can also be machine oil, ethylene glycol, or other sealing fluids, as long as it serves as a secondary seal for the support rod 4.

[0024] Furthermore, in the sludge feeding and slag breaking device for the pyrolysis furnace of the present invention, the water inlet pipe 91 is matched and connected to the steam-water separator inlet, the drain pipe 92 is matched and connected to the steam-water separator outlet, and the sludge inlet 12 is matched and connected to the sludge feeding inlet.

[0025] In one specific embodiment, in the sludge-breaking device for a pyrolysis furnace of the present invention, multiple sludge-breaking heads 6 are connected to the sludge-breaking rod 5 by threads. The multiple sludge-breaking heads 6 are staggered at a preset angle, more specifically, the staggered angle is 50°~70°. This setting greatly facilitates the disassembly and assembly of the sludge-breaking heads 6. When the sludge-breaking heads 6 are severely worn, only a new sludge-breaking head 6 needs to be replaced.

[0026] In one specific embodiment, in the slag breaking device for a pyrolysis furnace of the present invention, the slag breaking head 6 is made of nickel-based alloy Incoloy 825 and has a hard alloy cobalt-based No. 1 plasma-sprayed coating on its surface. This configuration greatly improves the service life of the slag breaking head 6.

[0027] Furthermore, in the sludge-distributing and slag-breaking device for a pyrolysis furnace of the present invention, the included angle between the sludge-distributing disc 7 and the axis of the support rod 4 is a preset angle and matches the length of the slag-breaking rod 5. This setting ensures that when the sludge is distributed onto the rotating slag-breaking rod 5 by the rotating sludge-distributing disc 7, the sludge can fall into the stirring range of the slag-breaking rod 5, thereby improving the stirring efficiency of the sludge. More specifically, the shorter the length of the slag-breaking rod 5, the greater the inclination of the sludge-distributing disc 7 should be designed. Of course, the specific length of the slag-breaking rod 5 and the included angle between the sludge-distributing disc 7 and the axis of the support rod 4 should be designed according to the actual usage requirements.

[0028] In one specific embodiment, in the sludge-dispensing and slag-breaking device for a pyrolysis furnace of the present invention, a plurality of drainage holes 42 are opened on the outer wall of the support rod 4 above the inner tube 81. The plurality of drainage holes 42 are evenly distributed radially to the outer wall of the support rod 4 with the axis of the support rod 4 as the center. This arrangement can reduce the stress concentration of the high-pressure water flow to one side and extend the service life of the support rod 4.

[0029] Furthermore, in the slag breaking device for a pyrolysis furnace of the present invention, the number of slag breaking heads 6 and drainage holes 42 is not limited, for example, the number of slag breaking heads 6 and drainage holes 42 is 4 or more.

[0030] The sludge-feeding and slag-breaking method for a pyrolysis furnace of the present invention is implemented using the above-mentioned sludge-feeding and slag-breaking device for a pyrolysis furnace, and specifically includes the following steps: Step 1: Connect the inlet pipe 91 to the steam-water separator inlet and the outlet pipe 92 to the steam-water separator outlet; Step 2: Fix the hollow support 1 in the designated position inside the pyrolysis furnace, then adjust the weight of the counterweight 32 according to the high temperature slagging of the sludge, adjust the height of the worm gear 31 through the turbine reducer 24, and then adjust the height of the slag breaking rod 5 so that the slagging in the middle of the pyrolysis furnace is within the effective stroke of the slag breaking rod 5. Step 3: After the limit switch seat 33 detects that the height of the slag breaking rod 5 is within the specified stroke, the motor 21 is started, the transmission mechanism 2 starts to operate, and then the lifting regulator 3 controls the support rod 4 to rotate at the preset speed, thereby driving the mud plate 7 and the slag breaking rod 5 to rotate at the preset speed. Step 4: Fill the shaped sludge into the sludge inlet 12 through the sludge feeding port. Then the sludge falls from the lower end of the hollow support 1 into the rotating sludge distribution plate 7. It is evenly distributed to the position of the slag breaking rod 5 through the sludge distribution plate 7. The rotating slag breaking rod 5 is used for stirring and crushing. The height of the slag breaking rod 5 can also be adjusted by increasing or decreasing the weight of the counterweight 32, so that the slag breaking head 6 can crush the high-temperature coking sludge. Step 5: After the mud-breaking and slag-breaking work is completed, adjust the weight of the counterweight 32, adjust the height of the worm gear 31 through the turbine reducer 24, and then adjust the height of the slag-breaking rod 5 so that the slag-breaking rod 5 is outside the effective stroke. After the limit switch seat 33 detects that the height of the slag-breaking rod 5 is outside the specified stroke, turn off the motor 21. Finally, disconnect the water inlet pipe 91 from the steam-water separator inlet and the drain pipe 92 from the steam-water separator outlet.

[0031] In summary, compared with the prior art, the sludge-dispensing and slag-breaking device and method for pyrolysis furnaces of the present invention have the following advantages and positive effects: (1) The present invention, through the cooperation between the transmission mechanism 2 and the lifting regulator 3, can flexibly extend and retract to adjust the height of the slag breaking rod 5 according to the high temperature slag formation of sludge in the pyrolysis furnace. Furthermore, by driving the rotation of the worm gear 31, the mud distribution plate 7 and the slag breaking rod 5 are driven to rotate, thereby achieving the effect of uniformly distributing sludge and breaking slag. This solves the problem of high temperature coking sludge with high hardness and uneven combustion caused by the high temperature in the sludge pyrolysis furnace and the easy coking of sludge raw materials. (2) By setting up a liquid cooling system with cooling effect, the present invention reduces the working temperature of components such as transmission mechanism 2, lifting regulator 3, support rod 4, mud plate 7, slag breaking rod 5, and slag breaking head 6, so that each component is heated evenly. By reducing the temperature of slag breaking head 6, the wear of slag breaking head 6 is greatly reduced. Moreover, slag breaking head 6 is easy to disassemble and assemble. When slag breaking head 6 is severely worn, only a new slag breaking head 6 needs to be replaced. In addition, a secondary seal is formed between sealing sleeve 41 and liquid seal pipe 8, which prevents gas in pyrolysis furnace from overflowing upward to transmission mechanism 2.

[0032] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sludge-dispensing and slag-breaking device for a pyrolysis furnace, characterized in that, The system includes a hollow support fixed inside the pyrolysis furnace, a transmission mechanism disposed on top of the hollow support, a lifting adjuster disposed inside the hollow support, a support rod disposed below the lifting adjuster, and a slag-breaking rod vertically connected to the bottom of the support rod, wherein: The transmission mechanism includes a motor, a cylindrical reducer connected to the motor via a coupling, and a turbine reducer disposed above the motor and fixed to the top of the hollow support. The lifting adjuster includes a worm gear connected to and matched to the worm gear reducer, a counterweight block disposed above the worm gear, and a limit switch seat disposed above the counterweight block. The limit switch seat is electrically connected to the motor. The support rod is connected to the bottom of the worm and a mud-distributing plate is installed on its outer side. A liquid seal pipe is provided between the mud-distributing plate and the worm. A sealing sleeve is provided below the liquid seal pipe. Multiple slag-breaking heads are provided at the bottom of the slag-breaking rod. The hollow support includes a water storage section and a mud inlet connected to each other. The mud distribution plate is located directly below the mud inlet. The liquid seal tube is sleeved on the outside of the support rod inside the mud inlet and fixed to the top of the mud inlet. Water supply pipes are sequentially connected within the worm gear, the support rod, the slag-breaking rod, and the slag-breaking head. A first pipe gap exists between the worm gear and the water supply pipe; a second pipe gap exists between the support rod and the water supply pipe; a third pipe gap exists between the slag-breaking rod and the water supply pipe; and a fourth pipe gap exists between the slag-breaking head and the water supply pipe. The first, second, third, and fourth pipe gaps are interconnected. A water inlet pipe is located above the counterweight. The top of the water supply pipe within the worm gear is connected to the water inlet pipe, and the water supply pipe is connected to the fourth pipe gap. Multiple drainage holes are opened on the support rod within the water storage section. The second pipe gap is connected to the water storage section through the drainage holes. A drainage pipe is opened on the side of the water storage section. The water inlet pipe interface is matched and connected to the steam-water separator inlet, the drain pipe interface is matched and connected to the steam-water separator outlet, and the sludge inlet is matched and connected to the sludge feeding inlet.

2. The sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 1, characterized in that, The liquid seal tube includes an inner tube and an outer tube that are interconnected. The outer tube is located outside the inner tube. The inner tube is fixed to the outer wall of the support rod by fasteners. One end of the outer tube is fixed to the top of the mud inlet by fasteners, and the other end is sealed to the sealing sleeve. The liquid seal tube contains sealing liquid.

3. The sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 2, characterized in that, The sealing liquid is water.

4. The sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 1, characterized in that, Multiple slag breaking heads are threadedly connected to the slag breaking rod, and the multiple slag breaking heads are staggered at a preset angle.

5. A sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 4, characterized in that, The slag breaking head is made of nickel-based alloy Incoloy 825, and its surface is plasma-sprayed with hard alloy cobalt-based No.

1.

6. A sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 1, characterized in that, The angle between the mud-distributing disc and the axis of the support rod is a preset angle and matches the length of the slag-breaking rod.

7. A sludge-dispensing and slag-breaking device for a pyrolysis furnace according to claim 2, characterized in that, Multiple drainage holes are formed on the outer wall of the support rod above the inner tube.

8. A method for sludge feeding and breaking in a pyrolysis furnace, wherein the method is implemented using the sludge feeding and breaking device for a pyrolysis furnace as described in any one of claims 1 to 7, comprising: Step 1: Connect the water inlet pipe to the steam-water separator inlet, and connect the drain pipe to the steam-water separator outlet; Step 2: Fix the hollow support in the designated position inside the pyrolysis furnace, then adjust the weight of the counterweight according to the high-temperature slagging of the sludge, adjust the height of the worm gear through the turbine reducer, and then adjust the height of the slag breaking rod so that the slagging in the middle of the pyrolysis furnace is within the effective stroke of the slag breaking rod; Step 3: After the limit switch seat detects that the height of the slag breaking rod is within the specified stroke, the motor is started and the transmission mechanism starts to operate. Then, in conjunction with the lifting adjuster, the support rod is controlled to rotate at a preset speed, thereby driving the mud spreading plate and the slag breaking rod to rotate at a preset speed. Step 4: The shaped sludge is filled into the sludge inlet through the sludge feeding port. Then the sludge falls from the lower end of the hollow support into the rotating sludge distribution plate. It is evenly distributed to the position of the slag breaking rod through the sludge distribution plate. The rotating slag breaking rod is used to stir and break the sludge. The height of the slag breaking rod can also be adjusted by increasing or decreasing the weight of the counterweight to break the high-temperature coking sludge. Step 5: After the mud-breaking and slag-breaking work is completed, adjust the weight of the counterweight block, adjust the height of the worm gear through the turbine reducer, and then adjust the height of the slag-breaking rod so that the slag-breaking rod is outside the effective stroke. After the limit switch seat detects that the height of the slag-breaking rod is outside the specified stroke, turn off the motor. Finally, disconnect the water inlet pipe from the steam-water separator inlet and the drain pipe from the steam-water separator outlet.

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