A dewatering device for preparation of coal briquettes coupled with municipal sludge and gasification slag washing and separation carbon

Abstract

The application discloses a kind of gasification slag washing and selecting carbon and municipal sludge coupling type coal preparation dehydration device, it is related to filter-pressing dehydration technical field, including: rack, the inner side of rack is provided with filter plate, the both ends of rack are provided with material conveying pump and hydraulic cylinder respectively, two pull plate mechanisms are arranged on the rack;Help clean component, help clean component includes anti-sticking piece and vibration piece, anti-sticking piece includes two slide rails fixed in the inner side of rack and load-bearing rail, two slide rails are all provided with lifting piece, and swing blowing piece is arranged between two lifting pieces.The help clean component of the application can blow out warm or natural temperature airflow to filter cake and filter cloth when filter plate is pulled open by pull plate car to unload, blow off water film to eliminate surface tension and ice adhesion, reduce the adsorption between filter cake and filter cloth, while vibration piece knocks filter plate to generate high-frequency vibration, destroy adhering interface, make filter cake fall off, improve the high efficiency and automation of device unloading process.

Description

Technical Field

[0001] This invention relates to the field of pressure filtration and dewatering technology, specifically to a dewatering device for the preparation of coal briquettes by coupling carbon washing of gasification slag with municipal sludge. Background Technology

[0002] With the acceleration of industrialization and urbanization, the amount of industrial solid waste and municipal sludge generated is increasing year by year. The gasification slag produced during coal gasification contains a certain amount of residual carbon, and the refined carbon components can be recovered through washing and beneficiation processes, which have certain calorific value utilization value. At the same time, the residual sludge produced by municipal sewage treatment plants has a high water content, large volume, and high disposal costs, becoming a challenge for environmental governance. Currently, co-processing the carbon from gasification slag washing with municipal sludge, and preparing briquettes through processes such as compounding, dewatering, and molding, has become an effective resource utilization approach. The core of this process lies in the dewatering process, which typically uses a high-pressure diaphragm filter press to separate the solid and liquid components of the mixture, reducing the water content to below 30% to meet the requirements for subsequent briquette preparation.

[0003] In existing technologies, the dewatering process of high-pressure diaphragm filter presses mainly includes steps such as pressing, feeding, pressing, backflushing, loosening, and unloading. Among these, the unloading stage is crucial to the continuous operating efficiency and automation level of the equipment. In existing equipment, after the filter plates are opened, the filter cake mainly falls naturally due to its own gravity. However, due to the high viscosity of the mixture of gasification slag washing carbon and municipal sludge, strong adhesion is easily generated between the filter cake and the filter cloth. Furthermore, the surface tension generated by the residual water film on the filter cake will attract the filter cake to the filter cloth. In winter, the residual moisture on the filter cake will also freeze, forming ice adhesion, which inevitably leads to the filter cake not being able to fall off naturally and the phenomenon of incomplete unloading due to the filter cake adhering to the filter cloth. Summary of the Invention

[0004] The purpose of this invention is to provide a dewatering device for the preparation of briquettes from gasification slag washing carbon and municipal sludge coupled together. This device solves the problems of traditional high-pressure diaphragm filter presses, which suffer from the high viscosity of the mixture of gasification slag washing carbon and municipal sludge. This results in strong adhesion between the filter cake and the filter cloth, and the surface tension generated by the residual water film on the filter cake will also cause the filter cake to stick to the filter cloth. In winter, the residual moisture on the filter cake will freeze, forming ice adhesion, which will prevent the filter cake from falling off naturally and result in incomplete unloading due to the filter cake sticking to the filter cloth.

[0005] This invention solves the above-mentioned technical problems through the following technical solution: A dewatering device for preparing coal briquettes by coupling carbon washing and municipal sludge from gasification slag, comprising: The frame has a filter plate installed on its inner side, a material conveying pump and a hydraulic cylinder installed at both ends of the frame, and two plate pulling mechanisms installed on the frame. The cleaning aid component includes an anti-sticking component and a shaking component. The anti-sticking component includes two slide rails fixed to the inner side of the frame and a load-bearing rail. Each of the two slide rails is provided with a lifting component, and a swing blowing component is provided between the two lifting components. The lifting components are used to change the height of the swing blowing component. A supply and demand component is provided on the load-bearing rail, and the supply and demand component provides airflow to the swing blowing component.

[0006] Preferably, the lifting component includes a support column and a sliding seat that slides on a slide rail. One end of the support column has a rotating steel cable winding wheel with a steel cable wound on it. The other end of the support column has two traction wheels fixed on it. The support column has a groove with an mounting arm sliding inside the groove. One end of the steel cable passes through the two traction wheels and is fixed to the top of the mounting arm. A first gear is fixed at the central shaft of the cable winding reel. The cable winding reel and the sliding seat are slidably connected. An inner groove is provided on the sliding seat. A toothed plate is fixed on the inner side of the inner groove. The first gear extends to the inner side of the inner groove and meshes with the toothed surface of the toothed plate.

[0007] Preferably, the oscillating blowing component includes a connecting pipe, two first side plates, and two second side plates. The two ends of the connecting pipe are respectively rotatable to one end of the mounting arm in the two lifting components. A second gear is fixed to both ends of the connecting pipe. The two first side plates are respectively fixed to one side of the support column in the two lifting components. The two second side plates are respectively fixed to the other side of the support column in the two lifting components. A first side rack is fixed to one side of each of the two first side plates. A second side rack is fixed to one side of each of the two second side plates. A nozzle is provided on the connecting pipe.

[0008] Preferably, the supply component includes a hot air box that slides on a load-bearing rail, a heating wire is provided on the inner side of the hot air box, an air pump is fixed on the top of the hot air box, a corrugated telescopic pipe is fixed to the air outlet end of the air pump through a flexible hose, an air supply pipe is fixed to one end of the corrugated telescopic pipe, and one end of the air supply pipe is connected to a connecting pipe.

[0009] Preferably, the vibrating component includes a distribution duct and a rotating rod. One end of the distribution duct is fixed to one end of the mounting arm in one of the lifting components. The two ends of the rotating rod are respectively rotated to one end of the mounting arm in the two lifting components. One end of the rotating rod is located inside the distribution duct. A fan blade and a soft tapping strip are fixed on the rotating rod.

[0010] Preferably, the air distribution duct is connected to the air supply duct via an end duct, and one end of the air distribution duct is connected to the connecting duct via a ventilation duct.

[0011] Preferably, the plate pulling mechanism includes a connecting plate fixed on the frame, with sprockets rotating at both ends of the inner side of the connecting plate, a chain meshing between the two sprockets, and a plate pulling cart sliding on the connecting plate.

[0012] Preferably, the support columns in the two lifting members are fixedly connected by a fixing plate and a pulling plate carriage in the two pulling plate mechanisms, respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The cleaning aid components can blow warm or ambient temperature airflow onto the filter cake and filter cloth when the filter plates are pulled apart by the trolley for unloading. This disperses the water film, eliminates surface tension and ice adhesion, and reduces the adhesion between the filter cake and filter cloth. At the same time, the vibrating components strike the filter plates to generate high-frequency vibration, which breaks the adhesion interface and causes the filter cake to fall off, thus improving the efficiency and automation of the unloading process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the frame, the pull plate mechanism, and the cleaning aid assembly in this invention; Figure 3 This is a schematic diagram of the structure of the frame, the pulling plate mechanism, and the filter plate in this invention; Figure 4 This is a schematic diagram of the structure of the plate pulling mechanism and the cleaning aid assembly in this invention; Figure 5 This is a partial structural diagram of the cleaning aid component in this invention; Figure 6 for Figure 5 Enlarged diagram of section A in the middle; Figure 7 This is a partial disassembly diagram of the lifting component and the supply / demand component in this invention; Figure 8 for Figure 7 Structural diagram of the supply and demand components; Figure 9 This is a partial cross-sectional view of the partial swing blowing component and the shaking component in this invention.

[0015] 1. Frame; 2. Filter plate; 3. Material conveying pump; 4. Hydraulic cylinder; 5. Plate pulling mechanism; 51. Connecting plate; 52. Sprocket; 53. Chain; 54. Plate pulling trolley; 6. Cleaning aid assembly; 61. Slide rail; 62. Load-bearing rail; 63. Support column; 64. Sliding seat; 65. Steel cable winding wheel; 66. Steel cable; 67. Traction wheel; 68. Slide groove; 69. Mounting arm; 610. First gear; 611. Inner groove; 612. Toothed plate; 613. Connecting pipe; 614. First side plate; 615. Second side plate; 616. Second gear; 617. First side rack; 618. Second side rack; 619. Nozzle; 620. Hot air box; 621. Heating wire; 622. Air pump; 623. Corrugated telescopic pipe; 624. Air supply pipe; 625. Air distribution pipe; 626. Rotating rod; 627. Fan blade; 628. Soft knocking bar. Detailed Implementation

[0016] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0017] This invention provides a technical solution: a dewatering device for the coupled production of coal briquettes from gasification slag washing and municipal sludge, such as... Figures 1-9 As shown, the assembly includes a frame 1 and a cleaning aid assembly 6. Filter plates 2 are installed on the inner side of the frame 1, and two hanging ears are fixed on each filter plate 2. The filter plates 2 are supported on the inner side of the frame 1 by the two hanging ears. The filter plates 2 can move from one side to the other as pressure is applied to one side of the frame 1. The number of filter plates 2 can be set arbitrarily. However, it should be noted that when all filter plates 2 are in the separated state, the distance between any two adjacent filter plates 2 is the same. This distance allows the connecting pipe 613, rotating rod 626, air distribution pipe 625, and rotating soft tapping strip 628 in the cleaning aid assembly 6 to pass through, and also allows the rotating soft tapping strip 628 to pass through. The striking bar 628 will not strike the filter cloth between the two filter plates 2, but it can strike the edges around the filter cloth on the two filter plates 2. A material conveying pump 3 and a hydraulic cylinder 4 are respectively installed at both ends of the frame 1. Two plate-pulling mechanisms 5 are installed on the frame 1. Each plate-pulling mechanism 5 includes a connecting plate 51 fixed to the frame 1. Both ends of the inner side of the connecting plate 51 have rotating chain wheels 52. A chain 53 meshes between the two chain wheels 52. A plate-pulling carriage 54 slides on the connecting plate 51. The plate-pulling carriage 54 is fixedly connected to the chain 53. When the chain 53 rotates, it drives the plate-pulling carriage 54 to move. Figure 4As shown, this embodiment is provided with two sets of chain wheels 52 and chains 53 corresponding to the front and rear. One of the chain wheels 52 is driven to rotate by a servo motor. Since this embodiment does not improve the filter plate 2 and other functions of the equipment (i.e., dewatering and filtration function), the filter plate 2, material conveying pump 3, hydraulic cylinder 4, plate pulling mechanism 5 and other structures in this embodiment are all existing mechanisms well known to those skilled in the art. The working principles and wiring methods of each mechanism are commonplace and belong to conventional means or common knowledge. Moreover, the dewatering process is also a mature working process of existing equipment, so it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0018] The cleaning aid component 6 includes an anti-sticking component and a shaking component. The anti-sticking component includes two slide rails 61 fixed to the inside of the frame 1 and a load-bearing rail 62. The two slide rails 61 are symmetrically distributed at the front and back of the frame 1. The load-bearing rail 62 is located below one of the slide rails 61. Each of the two slide rails 61 is equipped with a lifting component. A swing blowing component is located between the two lifting components. The lifting components are used to change the height of the swing blowing component. A supply and demand component is provided on the load-bearing rail 62. The supply and demand component provides airflow to the swing blowing component.

[0019] Two lifting components are symmetrically arranged. Each lifting component includes a support column 63 and a sliding seat 64 that slides on a slide rail 61. The support column 63 of the two lifting components is fixedly connected to the fixed plate and the pulling carriage 54 of the two pulling mechanisms 5, respectively. The support column 63 can move together with the pulling carriage 54. A steel cable winding wheel 65 rotates at the lower end of the support column 63. A steel cable 66 is wound on the steel cable winding wheel 65. The diameter of the steel cable winding wheel 65 should be large to ensure that a sufficiently long steel cable 66 can be released in one rotation. The sufficient length of the steel cable 66 released in one rotation is enough to allow the blowing component to fall from above the filter plate 2 to the lower edge of the filter plate 2 when the pulling carriage 54 moves a certain distance. Two traction wheels 67 are fixed at the other end (i.e., the upper end) of the support column 63. The positions of the two traction wheels 67 are as follows: Figure 7 As shown, a groove 68 is provided on the support column 63, and an mounting arm 69 slides along the inner side of the groove 68. One end of the steel cable 66 passes through two traction wheels 67 and is fixed to the top of the mounting arm 69. The two traction wheels 67 are used to support the part of the steel cable 66 passing through the edge of one end of the support column 63, thereby limiting the movement of the steel cable 66 and preventing the steel cable 66 from being worn by the edge. A first gear 610 is fixed at the central shaft of the steel cable winding wheel 65. The steel cable winding wheel 65 and the sliding seat 64 are slidably connected. Figure 8As shown, in this embodiment, a groove is opened on the sliding seat 64, and a slider is fixed on the cable winding reel 65. The slider is slidably connected in the groove to connect the cable winding reel 65 and the sliding seat 64. The sliding seat 64 has an inner groove 611 on the side facing the cable winding reel 65. A toothed plate 612 is fixed on the inner side of the inner groove 611. The first gear 610 extends to the inner side of the inner groove 611 and meshes with the tooth surface of the toothed plate 612. When the support column 63 is driven by the trolley 54, the first gear 610 will move in the inner groove 611 and rotate through the teeth meshing with the toothed plate 612, thereby causing the cable winding reel 65 to rotate and release the cable 66 or The winding of the steel cable 66 is limited by the connection between the groove on the sliding seat 64 and the steel cable winding wheel 65, which determines the distance that the first gear 610 will move on the toothed plate 612. When the slider moves to one end that is in contact with the groove, it will drive the sliding seat 64 to move on the slide rail 61 under the continued movement of the support column 63. The size and number of teeth of the first gear 610, as well as the number and length of the teeth of the toothed plate 612, determine how many times the first gear 610 can rotate after the slider moves in the groove. The length of the steel cable 66 that can be released after the first gear 610 rotates is the length of the connecting pipe 613 from above the filter plate 2 to near the lower edge of the filter plate 2.

[0020] The oscillating blowing component includes a connecting pipe 613, two first side plates 614, and two second side plates 615. Both ends of the connecting pipe 613 are rotatably connected to one end of the mounting arm 69 in each of the two lifting components. A second gear 616 is fixed to both ends of the connecting pipe 613. Both ends of the connecting pipe 613 pass through the two mounting arms 69, and the rotational connection at the penetration point has a certain resistance to prevent the connecting pipe 613 from easily deflecting, ensuring that the connecting pipe 613 can only be deflected by the movement of the second gear 616. The second gears 616 at both ends of the connecting pipe 613 are positioned between the two mounting arms 69 and the two support columns 63, respectively. Nozzles 619 are provided on the connecting pipe 613; the number of nozzles 619 can be set arbitrarily, as long as the gas ejected from all nozzles 619 can cover the filter cloth on the filter plate 2. The two first side plates 614 are fixed to one side of the support column 63 in each of the two lifting components, and the two second side plates 615 are fixed to the other side of the support column 63 in each of the two lifting components. Figure 6 As shown, the first side plate 614 and the second side plate 615 have different heights. In this embodiment, the first side plate 614 is positioned lower than the second side plate 615. Alternatively, the first side plate 614 can be positioned higher than the second side plate 615. A first side rack 617 is fixed to one side of each of the two first side plates 614, and a second side rack 618 is fixed to one side of each of the two second side plates 615. Figure 6As shown, the first side rack 617 and the second side rack 618 are staggered one-to-one. This staggering is both in height (i.e., on the vertical plane) and in the front-to-back direction (i.e., on the horizontal plane). The second gear 616 is located between the first side plate 614 and the second side plate 615, and the thickness of the second gear 616 is the sum of the thicknesses of the first side rack 617 and the second side rack 618. When the second gear 616 moves to the position corresponding to the first side rack 617, it will be in a meshing state with the first side rack 617. When it passes the first side rack 617, it will rotate in one direction. After rotating, the second gear 616 will be in a meshing state with the second side rack 618 when it contacts the second side rack 618. When it passes the second side rack 618, it will deflect in another direction.

[0021] The supply and demand components include a hot air box 620 that slides on a load-bearing rail 62. The hot air box 620 is fixedly connected to a vertical plate and a sliding seat 64, such as... Figure 8 As shown, an air inlet pipe is fixedly installed at the bottom of the hot air box 620. A removable filter screen can be installed at one end of the air inlet pipe. This filter screen needs to be cleaned regularly to prevent external dust from entering the hot air box 620 and then spraying onto the filter cloth of the filter plate 2, causing contamination. A heating wire 621 is installed inside the hot air box 620, and an air pump 622 is fixed at the top of the hot air box 620. The working principle and wiring method of the air pump 622, heating wire 621, hydraulic cylinder 4, and material conveying pump 3 are common and conventional, and will not be described in detail here. Those skilled in the art can select and match them arbitrarily according to their needs or convenience. Air pump 622 The air outlet is fixed with a corrugated telescopic tube 623 via a flexible hose. The lower end of the corrugated telescopic tube 623 is fixed to the support column 63 via a fixing ring. The length of the hose is fixed. Fixing the lower end of the corrugated telescopic tube 623 also prevents the hose from snagging on other structures and affecting its use. When the support column 63 moves, it will be misaligned with the sliding seat 64 and the hot air box 620. The characteristics of the hose can maintain the connection when misalignment occurs. One end of the corrugated telescopic tube 623 is fixed with an air supply pipe 624. The air supply pipe 624 is fixedly connected to the mounting arm 69 via a connecting arm. One end of the air supply pipe 624 is connected to the connecting pipe 613.

[0022] The vibrating element includes a distribution duct 625 and a rotating rod 626. One end of the distribution duct 625 is fixed to one end of the mounting arm 69 in one of the lifting elements. The distribution duct 625 is connected to the air supply duct 624 via an end pipe. The other end of the distribution duct 625 is connected to the connecting pipe 613 via a ventilation pipe. The two ends of the rotating rod 626 rotate at one end of the mounting arm 69 in each of the two lifting elements. One end of the rotating rod 626 is located inside the distribution duct 625, and the point where this end passes through the distribution duct 625 is... The rotating rod 626 is fixed with a fan blade 627 and a soft tapping strip 628. The fan blade 627 is located inside the air distribution pipe 625. The number of soft tapping strips 628 can be set by the user. It should be noted that when the soft tapping strips 628 rotate, they will tap on the edge of the filter plate 2. However, the soft tapping strips 628 located at the filter cloth position will not tap on the filter cloth because the filter cloth is located inside the filter plate 2. The soft tapping strips 628 are made of an elastic material, such as rubber or silicone.

[0023] In operation: Upon starting the equipment, hydraulic cylinder 4 will begin to push the movable head to move. The movable head will then push the filter plates 2 until all the filter plates 2 are tightly pressed together, applying a certain pressure to the pressed filter plates 2. At this time, material conveying pump 3 will transport gasified slag washing carbon and municipal sludge to the spaces between the filter plates 2. The sludge will sequentially fill the gaps between each filter plate 2, and the pressure from material conveying pump 3 will perform a first filling and dewatering process. Then, high-pressure water or compressed air will be injected into the diaphragm in the middle of the filter plates 2, causing the diaphragm to bulge and perform a second pressing and dewatering of the filter cake. This physical extrusion method can remove most of the free water, resulting in a blocky filter cake with significantly reduced moisture content and a certain strength. Then, unloading can begin (i.e., the filter plates 2 are pulled apart by the plate-pulling mechanism 5 so that the filter cake can fall out). During unloading, the plate-pulling mechanism 5 is activated. The rotation of the chain wheel 52 and the chain 53 will cause the chain 53 to drive the plate-pulling carriage 54 to move. The plate-pulling carriage 54 moves to a filter plate 2 and is limited by the hanging lug of the filter plate 2 before moving back. In this way, the tightly attached filter plates 2 are opened one by one, allowing the filter cake to fall out.

[0024] When the trolley 54 moves, it moves the support column 63 connected to it. The support column 63, in turn, moves the sliding seat 64 and the hot air box 620 together through the connection of the first gear 610 and the sliding seat 64. When the trolley 54 pulls the filter plate 2 (i.e., pulls the filter plate 2 away from the mating filter plate 2), it moves the support column 63. At this time, the support column 63 drives the first gear 610 to move in the inner groove 611 through the cable winding wheel 65. The first gear 610 passes over the toothed plate 612 and rotates through the meshing teeth, thereby driving the cable winding wheel 65 to rotate and release the cable 66. The cable 66 release mounting arm 69 slides down the slide groove 68, thereby causing the connecting pipe 613 and the rotating rod 626 to slide down the filter plate 2. At the same time, the air pump 622 starts to draw outside air into the hot air box. In 620, if the weather is cold and the temperature is low, the heating wire 621 can be turned on to heat the air. If the weather is not cold, the heating wire 621 can be turned off. The air passing through the hot air box 620 will enter the connecting pipe 613 and the distribution pipe 625 through the air supply pipe 624. The air in the connecting pipe 613 will be sprayed out through the nozzle 619 to blow the filter cake and replace the moisture as much as possible. The drier the filter cake, the easier it is to fall off. In winter, the heated air will melt the ice adhesion between the filter cake and the filter cloth and dry it. The air entering the distribution pipe 625 will drive the fan blade 627 to rotate. The fan blade 627 will drive the rotating rod 626 to rotate, so that the soft knocking strip 628 rotates and knocks on the edge of the filter plate 2, causing the filter cloth to vibrate automatically. The vibration force assists the gravity to unload the cake. The airflow passing through the fan blade 627 will re-enter the connecting pipe 613 and blow it out. As the connecting pipe 613 and the air distribution pipe 625 slide down, the air supply pipe 624 will press down on the corrugated telescopic pipe 623. During this downward movement, the second gear 616 will pass through the first side rack 617 and the second side rack 618. When passing the first side rack 617, the meshing teeth will cause the second gear 616 to deflect in one direction, thereby causing the connecting pipe 613 to deflect and change the airflow direction. Subsequently, after passing the second side rack 618, the second gear 616 will cause the connecting pipe 613 to deflect in another direction. When the filter cloth deflects in one direction and slides down, the swinging connecting pipe 613 will repeatedly cover and blow the entire filter cloth. The repeated blowing of the filter cloth can better ensure the drying effect. When the puller 54 pulls the filter plate 2 to the designated position, it will drive the support column 63 to move back. When the support column 63 moves back, the steel cable 66 is retrieved through the rotation of the toothed plate 612 via the first gear 610. In this way, the connecting pipe 613 and the rotating rod 626 are raised to the top of the filter plate 2 for the next use. This process is repeated to help each pulled-out filter plate 2 unload material.

[0025] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A dewatering device for the coupled production of coal briquettes from gasification slag washing and municipal sludge, characterized in that, include: The frame (1) has a filter plate (2) on its inner side, and a material conveying pump (3) and a hydraulic cylinder (4) are respectively provided at both ends of the frame (1). Two plate pulling mechanisms (5) are provided on the frame (1). The cleaning aid component (6) includes an anti-sticking component and a shaking component. The anti-sticking component includes two slide rails (61) fixed to the inside of the frame (1) and a load-bearing rail (62). Each of the two slide rails (61) is provided with a lifting component, and a swing blowing component is provided between the two lifting components. The lifting component is used to change the height of the swing blowing component. The load-bearing rail (62) is provided with a supply and demand component, which provides airflow to the swing blowing component.

2. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 1, characterized in that, The lifting component includes a support column (63) and a sliding seat (64) that slides on a slide rail (61). One end of the support column (63) has a rotating steel cable winding wheel (65) with a steel cable (66) wound on it. The other end of the support column (63) has two traction wheels (67) fixed on it. The support column (63) has a groove (68) with an mounting arm (69) sliding inside the groove (68). One end of the steel cable (66) passes through the two traction wheels (67) and is fixed to the top of the mounting arm (69). A first gear (610) is fixed at the central shaft of the cable winding reel (65). The cable winding reel (65) and the sliding seat (64) are slidably connected. An inner groove (611) is provided on the sliding seat (64). A toothed plate (612) is fixed on the inner side of the inner groove (611). The first gear (610) extends to the inner side of the inner groove (611) and meshes with the toothed surface of the toothed plate (612).

3. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 2, characterized in that, The oscillating blowing component includes a connecting pipe (613), two first side plates (614) and two second side plates (615). The two ends of the connecting pipe (613) are respectively rotated to one end of the mounting arm (69) in the two lifting components. A second gear (616) is fixed to both ends of the connecting pipe (613). The two first side plates (614) are respectively fixed to one side of the support column (63) in the two lifting components. The two second side plates (615) are respectively fixed to the other side of the support column (63) in the two lifting components. A first side rack (617) is fixed to one side of each of the two first side plates (614). A second side rack (618) is fixed to one side of each of the two second side plates (615). A nozzle (619) is provided on the connecting pipe (613).

4. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 3, characterized in that, The supply and demand components include a hot air box (620) that slides on a load-bearing rail (62). A heating wire (621) is provided on the inner side of the hot air box (620). An air pump (622) is fixed on the top of the hot air box (620). A corrugated telescopic pipe (623) is fixed to the air outlet end of the air pump (622) through a flexible hose. An air supply pipe (624) is fixed to one end of the corrugated telescopic pipe (623). One end of the air supply pipe (624) is connected to a connecting pipe (613).

5. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 4, characterized in that, The vibrating component includes a distribution pipe (625) and a rotating rod (626). One end of the distribution pipe (625) is fixed to one end of the mounting arm (69) in one of the lifting components. The two ends of the rotating rod (626) are respectively rotated to one end of the mounting arm (69) in the two lifting components. One end of the rotating rod (626) is located inside the distribution pipe (625). A fan blade (627) and a soft knocking strip (628) are fixed on the rotating rod (626).

6. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 5, characterized in that, The distribution duct (625) is connected to the air supply duct (624) through the end pipe, and one end of the distribution duct (625) is connected to the connecting pipe (613) through the ventilation pipe.

7. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 2, characterized in that, The plate pulling mechanism (5) includes a connecting plate (51) fixed on the frame (1). Both ends of the inner side of the connecting plate (51) are equipped with sprockets (52). A chain (53) is meshed between the two sprockets (52). A plate pulling cart (54) slides on the connecting plate (51).

8. The dewatering device for co-firing carbon from gasification slag washing and municipal sludge coal preparation according to claim 7, characterized in that, The support columns (63) in the two lifting components are fixedly connected by a fixed plate and a pull plate carriage (54) in the two pull plate mechanisms (5).

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