Sludge drying equipment and drying method thereof

Abstract

The invention discloses sludge drying equipment and a sludge drying method, and particularly relates to the technical field of sludge treatment.The sludge drying equipment comprises a sludge drying machine, a stirring mechanism facilitating sludge dewatering is arranged in the sludge drying machine, and a cleaning mechanism facilitating sludge cleaning in the sludge drying machine is arranged in the sludge drying machine; one end of the sludge dryer is provided with an adjusting mechanism convenient for discharging sludge, the stirring mechanism drives the stirring rod on the connecting rod to rotate by utilizing the main gear and the auxiliary gear, the sludge in the sludge dryer 1 can be stirred through the stirring rod, and the coagulated sludge is scattered so as to be better heated; and meanwhile, the drying time can be shortened, and the working efficiency can be improved. The sludge is dried by waste heat flue gas, so that the volume of the sludge is reduced, and biomass such as leaves is recycled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge treatment, and more particularly to a sludge drying device and a sludge drying method. BACKGROUND

[0002] Printing and dyeing, electroplating, food and waterworks will produce sewage containing a large amount of floating impurities and colloidal particles, and these sewage must be purified to reach the standard before being discharged. However, after the extrusion dewatering of the impurities and particles in the sewage by a plate and frame filter press or a stacked screw machine, sludge with a water content of 50% to 80% is formed; In order to facilitate the transportation of sludge and reduce the treatment cost of sludge, it is necessary to dewater the sludge. However, the existing sludge drying device is prone to cause the sludge to coagulate together during the drying process, which makes it difficult to dry the internal sludge, thereby increasing the drying time and reducing the work efficiency. Therefore, the present application provides a sludge drying device and a sludge drying method to solve the above problems. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a sludge drying device and a sludge drying method to solve the problems raised in the background art.

[0004] To achieve the above object, the present application provides the following technical scheme: a sludge drying device, comprising a sludge dryer, an internal stirring mechanism for facilitating dewatering of the sludge, an internal cleaning mechanism for facilitating cleaning of the sludge in the dryer, and an adjusting mechanism at one end of the sludge dryer for facilitating discharge of the sludge.

[0005] Preferably, the stirring mechanism comprises a clamping groove, a first driving motor, a first threaded rod, a first bearing, a fixed block, a connecting frame, a clamping block, a second driving motor, a main pulley, a main gear, an auxiliary gear, an auxiliary pulley, a belt, a connecting rod and a stirring rod, the inside of the sludge dryer is provided with a plurality of clamping grooves, one end of the inside of the sludge dryer is fixedly connected with the first driving motor, one end of the first driving motor is fixedly connected with the first threaded rod, one end of the first threaded rod is fixedly connected with the first bearing, one end of the first bearing is rotatably connected with the sludge dryer, and the surface of the first threaded rod is threadedly connected with the fixed block.

[0006] Preferably, the first threaded rod and the sludge drying mechanism form a rotating structure through the first bearing.

[0007] Preferably, the cleaning mechanism comprises a third driving motor, a second threaded rod, a second bearing, a connecting plate, a scraper and a sliding rod, one end of the inside of the sludge dryer is fixedly connected with the third driving motor, one end of the third driving motor is fixedly connected with the second threaded rod, one end of the second threaded rod is fixedly connected with the second bearing, the surface of the second threaded rod is threadedly connected with the connecting plate, one side of the bottom of the connecting plate is fixedly connected with the scraper, one side of the inside of the sludge dryer is fixedly connected with the sliding rod, and the surface of the sliding rod is slidably connected with the connecting plate.

[0008] Preferably, the adjusting mechanism comprises a limiting groove, an electric push rod, a fixed plate and a limiting block, two groups of limiting grooves are formed in one end of the sludge dryer, the electric push rod is fixedly connected to the top of one end of the sludge dryer, the fixed plate is fixedly connected to one end of the electric push rod, the limiting blocks are fixedly connected to both ends of the fixed plate, and the limiting blocks are slidably connected to the inner walls of the limiting grooves.

[0009] Preferably, the size of the inner wall of the limiting groove is consistent with the size of the outer wall of the limiting block.

[0010] Preferably, one side of the sludge dryer is provided with an air inlet, and the other side is provided with an air outlet, and one end of the air inlet is connected with a fixed bed gasification furnace.

[0011] Preferably, the top of the sludge dryer is provided with a feeding port.

[0012] Preferably, one end of the sludge dryer is slidingly connected with a collection box, and one side of the collection box is fixedly connected with a handle.

[0013] Preferably, a drying method of a sludge drying device, the drying method comprising the following steps: Step one: in use, the water-containing sludge is added into the sludge dryer through the feeding port, and the waste heat flue gas generated by the fixed bed gasification furnace connected with one end of the air inlet is used to heat the sludge in the sludge dryer; Step two: the main gear drives the secondary gear to rotate, the connecting rod drives the stirring rod to rotate, the sludge is stirred by the multiple stirring rods, the sludge can be dispersed, the heating is more uniform, and the sludge is better dehydrated; Step three: when the sludge is dehydrated, the stirring rod is removed from the clamping groove, the third driving motor is started, the third driving motor drives the second threaded rod to rotate, the connecting plate drives the scraper to move, and the sludge on the inner wall of the sludge dryer can be cleaned; Step four: the electric push rod is started, the fixed plate is moved upward, one end of the sludge dryer is opened, and the sludge cleaned by the connecting plate and the scraper is pushed into the collection box; Step five: the dehydrated sludge is collected by the collection box, and the collection box is pulled out by the handle, so that the dehydrated sludge can be treated subsequently.

[0014] The technical effects and advantages of the present application are: 1. Compared with the prior art, the sludge drying device and its drying method, by the stirring mechanism, the stirring rod on the connecting rod is driven to rotate by the main gear and the secondary gear, the sludge in the sludge dryer 1 is stirred by the stirring rod, the sludge condensed together is scattered, the sludge is better heated, and the sludge is more easily dried, the drying time is reduced, and the work efficiency is improved.

[0015] 2. Compared with the prior art, the sludge drying device and its drying method, the sludge is dried by the waste heat flue gas, thereby reducing the volume of the sludge, and the biomass such as leaves is recycled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2Structure diagram of the sludge dryer and the air inlet of the present application; Figure 3 Structure diagram of the stirring mechanism of the present application; Figure 4 Structure diagram of the second driving motor and the main pulley of the present application; Figure 5 Structure diagram of the clamping groove and the clamping block of the present application; Figure 6 Structure diagram of the first threaded rod and the fixed block of the present application; Figure 7 Structure diagram of the connecting frame and the clamping block of the present application; Figure 8 Structure diagram of the cleaning mechanism of the present application; Figure 9 Structure diagram of the adjusting mechanism of the present application.

[0017] The reference signs are as follows: 1, sludge dryer; 2, air inlet; 3, air outlet; 4, feeding port; 5, stirring mechanism; 501, clamping groove; 502, first driving motor; 503, first threaded rod; 504, first bearing; 505, fixed block; 506, connecting frame; 507, clamping block; 508, second driving motor; 509, main pulley; 510, main gear; 511, auxiliary gear; 512, auxiliary pulley; 513, belt; 514, connecting rod; 515, stirring rod; 6, cleaning mechanism; 601, third driving motor; 602, second threaded rod; 603, second bearing; 604, connecting plate; 605, scraper; 606, sliding rod; 7, adjusting mechanism; 701, limiting groove; 702, electric push rod; 703, fixed plate; 704, limiting block; 8, collecting box; 9, handle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] Embodiment 1 As Figures 1 to 9The sludge drying device shown comprises a sludge dryer 1, the inside of the sludge dryer 1 is provided with a stirring mechanism 5 for facilitating sludge dewatering, which is used for stirring and spreading the sludge so as to be heated better, the inside of the sludge dryer 1 is provided with a cleaning mechanism 6 for facilitating cleaning of the sludge inside the dryer, which can clean the sludge adhered to the inner wall of the sludge dryer 1, one end of the sludge dryer 1 is provided with an adjusting mechanism 7 for facilitating sludge discharge, which is used for discharging the sludge from the sludge dryer 1.

[0020] Example 2 On the basis of example 1, the scheme in example 1 is further refined in combination with the specific working mode as follows, such as Figures 1 to 9 As shown, see the following description in detail: As a preferred implementation, the stirring mechanism 5 comprises a clamping groove 501, a first driving motor 502, a first threaded rod 503, a first bearing 504, a fixed block 505, a connecting frame 506, a clamping block 507, a second driving motor 508, a main pulley 509, a main gear 510, an auxiliary gear 511, an auxiliary pulley 512, a belt 513, a connecting rod 514, and a stirring rod 515. The inside of the sludge dryer 1 is provided with a plurality of clamping grooves 501. One end of the inside of the sludge dryer 1 is fixedly connected with the first driving motor 502. One end of the first driving motor 502 is fixedly connected with the first threaded rod 503. One end of the first threaded rod 503 is fixedly connected with the first bearing 504. One end of the first bearing 504 is rotatably connected with the sludge dryer 1. The surface of the first threaded rod 503 is threadedly connected with the fixed block 505. The surface of the fixed block 505 is fixedly connected with the connecting frame 506. The top of the connecting frame 506 is fixedly connected with a plurality of clamping blocks 507. One end of the inside of the connecting frame 506 is fixedly connected with the second driving motor 508. One end of the second driving motor 508 is fixedly connected with the main pulley 509. One end of the main pulley 509 is fixedly connected with the main gear 510. The surface of the main gear 510 is meshingly connected with the auxiliary gear 511. The top of the connecting frame 506 is rotatably connected with a plurality of auxiliary gears 511. One end of the top of the connecting frame 506 is rotatably connected with the auxiliary pulley 512. The surface of the main pulley 509 and the auxiliary pulley 512 is provided with the belt 513. The top of the auxiliary pulley 512 is fixedly connected with one of the auxiliary gears 511. The top of the main gear 510 and the plurality of auxiliary gears 511 is fixedly connected with the connecting rod 514. The inner wall of the clamping block 507 is slidably connected with the connecting rod 514. One end of the connecting rod 514 is fixedly connected with the stirring rod 515. The inner wall of the clamping groove 501 is slidably connected with the clamping block 507 and the stirring rod 515. The clamping groove 501 can be blocked by the clamping block 507 to prevent sludge from falling out of the clamping groove 501 during stirring of the stirring rod 515. Starting the second driving motor 508 can drive the main pulley 509 and the main gear 510 to rotate. The belt 513 on the main pulley 509 can drive the auxiliary pulley 512 to rotate, so that the auxiliary pulley 512 can drive one of the auxiliary gears 511 to rotate, thereby driving the other auxiliary gears 511 to rotate. At the same time, the main gear 510 drives another group of auxiliary gears 511 to rotate, thereby enabling the main gear 510 and the plurality of auxiliary gears 511 to rotate simultaneously, so that the connecting rod 514 can drive the stirring rod 515 to rotate. The stirring rod 515 can stir the sludge in the sludge dryer 1, thereby breaking up the sludge that has coagulated together to facilitate better heating and drying of the sludge, thereby reducing the drying time and improving work efficiency. After the sludge is dried, the plurality of stirring rods 515 are rotated to the starting position, and the first driving motor 502 is started to drive the first threaded rod 503 to rotate, so that the fixed block 505 can move up and down. The connecting frame 506 is driven by the fixed block 505 to move downward,The card block 507 can be removed from the card slot 501, thereby enabling the stirring rod 515 to pass through the card slot 501, and the sludge adhered to the surface of the stirring rod 515 can be cleaned.

[0021] As a preferred embodiment, the first threaded rod 503 is rotatably connected to the sludge dryer 1 through the first bearing 504. When the first threaded rod 503 rotates, the first bearing 504 can support one end of the first threaded rod 503 and prevent the first threaded rod 503 from shaking during rotation.

[0022] As a preferred embodiment, the cleaning mechanism 6 includes a third driving motor 601, a second threaded rod 602, a second bearing 603, a connecting plate 604, a scraper 605, and a sliding rod 606. One end of the sludge dryer 1 is internally fixedly connected with the third driving motor 601. One end of the third driving motor 601 is fixedly connected with the second threaded rod 602. One end of the second threaded rod 602 is fixedly connected with the second bearing 603. The surface of the second threaded rod 602 is threadedly connected with the connecting plate 604. The bottom side of the connecting plate 604 is fixedly connected with the scraper 605. One side of the sludge dryer 1 is internally fixedly connected with the sliding rod 606. The surface of the sliding rod 606 is slidably connected with the connecting plate 604. When the stirring rod 515 moves, the third driving motor 601 is started to drive the second threaded rod 602 to rotate, so that the connecting plate 604 drives the scraper 605 to move forward. The connecting plate 604 and the scraper 605 can clean the sludge adhered to the inner wall of the sludge dryer 1, and simultaneously push the dewatered sludge to move forward.

[0023] As a preferred embodiment, the adjusting mechanism 7 includes a limiting groove 701, an electric push rod 702, a fixed plate 703, and a limiting block 704. Two groups of limiting grooves 701 are formed in one end of the sludge dryer 1. The electric push rod 702 is fixedly connected to the top of one end of the sludge dryer 1. One end of the electric push rod 702 is fixedly connected with the fixed plate 703. The fixed plate 703 is fixedly connected with the limiting block 704 at both ends. The limiting groove 701 is slidably connected with the limiting block 704. The electric push rod 702 is started to drive the fixed plate 703 and the limiting block 704 to move upward, so that one end of the sludge dryer 1 can be opened to push the dewatered sludge into the collecting box 8 through the cleaning mechanism 6.

[0024] As a preferred embodiment, the size of the inner wall of the limiting groove 701 matches the size of the outer wall of the limiting block 704. When the limiting block 704 slides in the limiting groove 701, the limiting groove 701 can limit the sliding of the limiting block 704 to prevent the limiting block 704 from shaking in the limiting groove 701.

[0025] As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification.

[0026] As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification.

[0027] As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification.

[0028] As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification. As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification. As a preferred embodiment, the sludge dryer 1 is provided with an air inlet 2 on one side and an air outlet 3 on the other side for discharging exhaust gas. The air inlet 2 is connected with a fixed bed gasifier. By using the fixed bed gasifier, the pressure in the furnace is controlled at 0.1-0.2 MPa, and the gasification temperature is controlled at 700-1000℃. Palm shell and pine branch biomass with a length of 40-80mm and a water content of less than 30% are added into the gasifier, and a certain amount of calcium oxide (1%-5%) is also added. A certain amount of air or water vapor is used as a gasification agent and is introduced from the lower part of the gasifier, while the biomass is added from the upper part of the gasifier. The high-temperature synthesis gas is used as a heat source for sludge drying and is sent into the sludge dryer 1 through the air inlet 2, so that the sludge can be heated by indirect heat exchange. The water in the sludge is gasified and overflowed after being heated, thereby reducing the water content of the sludge. The produced biochar is discharged from the bottom of the gasifier and can be used for soil improvement and fuel. The synthesis gas can be used for fuel gas after purification. ​​Step five: the dewatered sludge is collected by the collecting box 8, and the collecting box 8 is pulled out by the handle 9, so that the dewatered sludge is subjected to subsequent treatment.

[0029] The working process of the present application is as follows: first, the water-containing sludge is added into the sludge dryer 1 through the feeding port 4, and the high-temperature synthesis gas generated by the fixed-bed gasification furnace is sent into the sludge dryer 1 through the gas inlet 2, the second driving motor 508 is started to drive the main pulley 509 and the main gear 510 to rotate, the secondary pulley 512 is driven to rotate through the belt 513 on the main pulley 509, one group of secondary gears 511 is driven to rotate through the secondary pulley 512, the other group of secondary gears 511 is driven to rotate through the secondary gears 511, the main gear 510 and the plurality of groups of secondary gears 511 are simultaneously driven to rotate, the stirring rods 515 are driven to rotate through the connecting rods 514, the sludge in the sludge dryer 1 is stirred through the stirring rods 515, the agglomerated sludge is broken up for better heating, and the sludge is more easily dried, the drying time is reduced, and the working efficiency is improved, after the sludge is dried, the plurality of stirring rods 515 are rotated to the starting position, the first driving motor 502 is started to drive the first threaded rod 503 to rotate, the fixed block 505 is moved up and down, the connecting frame 506 is moved downward through the fixed block 505, the clamping block 507 is moved out of the clamping groove 501, the stirring rod 515 can pass through the clamping groove 501, and the sludge adhered to the surface of the stirring rod 515 is cleaned, after the stirring rod 515 is moved, the third driving motor 601 is started to drive the second threaded rod 602 to rotate, the connecting plate 604 drives the scraper 605 to move forward, the sludge adhered to the inner wall of the sludge dryer 1 is cleaned through the connecting plate 604 and the scraper 605, and the dewatered sludge is pushed forward, the electric push rod 702 is started again to drive the fixed plate 703 and the limiting block 704 to move upward, one end of the sludge dryer 1 is opened, the dewatered sludge is pushed into the collecting box 8 through the cleaning mechanism 6, the dewatered sludge is collected by the collecting box 8, and the collecting box 8 is pulled out by the handle 9, so that the dewatered sludge is subjected to subsequent treatment, and the working principle of the sludge drying device and the sludge drying method is as described above.

Claims

1. A sludge drying device, comprising a sludge dryer (1), characterized in that: The sludge dryer (1) is equipped with a stirring mechanism (5) to facilitate sludge dewatering, a cleaning mechanism (6) to facilitate cleaning the sludge inside the dryer, and an adjustment mechanism (7) to facilitate sludge discharge at one end of the sludge dryer (1).

2. The sludge drying equipment according to claim 1, characterized in that: The stirring mechanism (5) includes a slot (501), a first drive motor (502), a first threaded rod (503), a first bearing (504), a fixing block (505), a connecting frame (506), a locking block (507), a second drive motor (508), a main pulley (509), a main gear (510), a secondary gear (511), a secondary pulley (512), a belt (513), a connecting rod (514), and a stirring rod (515). The sludge dryer (1) has multiple sets of slots (501) inside. 1) has a first drive motor (502) fixedly connected to one end of its interior. A first threaded rod (503) is fixedly connected to one end of the first drive motor (502). A first bearing (504) is fixedly connected to one end of the first threaded rod (503). A sludge dryer (1) is rotatably connected to one end of the first bearing (504). A fixing block (505) is threadedly connected to the surface of the first threaded rod (503). A connecting frame (506) is fixedly connected to the surface of the fixing block (505). A plurality of... The connecting frame (506) is assembled into a block (507). A second drive motor (508) is fixedly connected to one end of the connecting frame (506). A main pulley (509) is fixedly connected to one end of the second drive motor (508). A main gear (510) is fixedly connected to the top of the main pulley (509). A secondary gear (511) is meshed with the surface of the main gear (510). Multiple sets of secondary gears (511) are rotatably connected to the top of the connecting frame (506). A secondary pulley (512) is rotatably connected to the top of one end of the connecting frame (506). The surfaces of the main pulley (509) and the auxiliary pulley (512) are provided with belts (513). One set of auxiliary gears (511) is fixedly connected to the top of the auxiliary pulley (512). The top of the main gear (510) and multiple sets of auxiliary gears (511) are fixedly connected with connecting rods (514). The inner wall of the locking block (507) is slidably connected with the connecting rods (514). One end of the connecting rods (514) is fixedly connected with a stirring rod (515). The inner wall of the locking groove (501) is slidably connected with the locking block (507) and the stirring rod (515).

3. The sludge drying equipment according to claim 2, characterized in that: The first threaded rod (503) forms a rotating structure with the sludge dryer (1) through the first bearing (504).

4. The sludge drying equipment according to claim 1, characterized in that: The cleaning mechanism (6) includes a third drive motor (601), a second threaded rod (602), a second bearing (603), a connecting plate (604), a scraper (605), and a slide rod (606). The third drive motor (601) is fixedly connected to one end of the sludge dryer (1). The second threaded rod (602) is fixedly connected to one end of the third drive motor (601). The second bearing (603) is fixedly connected to one end of the second threaded rod (602). The connecting plate (604) is threadedly connected to the surface of the second threaded rod (602). The scraper (605) is fixedly connected to one side of the bottom of the connecting plate (604). The slide rod (606) is fixedly connected to one side of the sludge dryer (1). The connecting plate (604) is slidably connected to the surface of the slide rod (606).

5. The sludge drying equipment according to claim 1, characterized in that: The adjustment mechanism (7) includes a limiting groove (701), an electric push rod (702), a fixing plate (703), and a limiting block (704). Two sets of limiting grooves (701) are provided at one end of the sludge dryer (1). An electric push rod (702) is fixedly connected to the top of one end of the sludge dryer (1). A fixing plate (703) is fixedly connected to one end of the electric push rod (702). Limiting blocks (704) are fixedly connected to both ends of the fixing plate (703). Limiting blocks (704) are slidably connected to the inner wall of the limiting groove (701).

6. The sludge drying equipment according to claim 5, characterized in that: The inner wall dimensions of the limiting groove (701) match the outer wall dimensions of the limiting block (704).

7. The sludge drying equipment according to claim 1, characterized in that: The sludge dryer (1) has an air inlet (2) on one side and an air outlet (3) on the other side. One end of the air inlet (2) is connected to a fixed bed gasifier.

8. The sludge drying equipment according to claim 1, characterized in that: The sludge dryer (1) has a feed inlet (4) at the top.

9. The sludge drying equipment according to claim 1, characterized in that: A collection box (8) is slidably connected to one end of the sludge dryer (1), and a handle (9) is fixedly connected to one side of the collection box (8).

10. A method for drying sludge, using the sludge drying equipment according to any one of claims 1-9, characterized in that: The drying method includes the following steps: Step 1: When using the sludge, add the sludge containing water into the sludge dryer (1) through the feed inlet (4), and then use the air inlet (2) to connect one end to the fixed bed gasifier. The waste heat flue gas generated by the gasifier is used to heat the sludge in the sludge dryer (1). Step 2: Use the main gear (510) to drive the secondary gear (511) to rotate, so that the connecting rod (514) drives the stirring rod (515) to rotate. Through multiple sets of stirring rods (515), the sludge is stirred, so that the sludge can be dispersed, so that it is heated more evenly, and thus the sludge can be dewatered better. Step 3: After the sludge dewatering is completed, remove the stirring rod (515) from the slot (501), start the third drive motor (601), the third drive motor (601) drives the second threaded rod (602) to rotate, so that the connecting plate (604) drives the scraper (605) to move, so that it can clean the sludge on the inner wall of the sludge dryer (1); Step 4: Start the electric push rod (702) to move the fixed plate (703) upward, so that one end of the sludge dryer (1) is opened, and then the cleaned sludge is pushed into the collection box (8) through the connecting plate (604) and scraper (605); Step 5: Use the collection box (8) to collect the dewatered sludge, and then pull out the collection box (8) through the handle (9) so that the dewatered sludge can be further processed.

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