A power plant sludge direct injection system and method of use thereof

Abstract

This invention relates to the field of sludge treatment technology and discloses a direct blending system for power plant sludge, including a shell. A hydraulic cylinder is fixedly connected to the top outer wall of the shell. A heat-conducting plate is provided inside the shell, and one end of the hydraulic rod of the hydraulic cylinder is fixed to the heat-conducting plate. A second heating wire is installed inside the heat-conducting plate. A feed pipe is inserted and fixed to the top of the shell. Two connecting blocks are fixedly connected to the inner walls on both sides of the shell. The invention also discloses a method for using the direct blending system for power plant sludge, including the following steps: S1: First, the sludge enters the shell through the feed pipe, placing it above a perforated plate. The perforated plate filters the water in the sludge. This invention not only makes the dewatering effect of the device more efficient and saves dewatering time, but also facilitates automatic feeding through the spiral blades, and maintains close contact between the slide and the perforated plate through a spring.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a direct blending system for power plant sludge and its application method. Background Technology

[0002] With the rapid development of urbanization in my country, how to deal with the waste gas and sludge generated by sewage treatment plants has gradually become an increasingly difficult problem. As a type of biomass, sludge has the characteristic of zero carbon dioxide emission when burned. It can also achieve low-cost large-scale treatment of sludge that is harmless, reduced in volume, and resource-oriented. Using existing coal-fired power plant systems for sludge co-firing has good social and economic benefits.

[0003] Existing thermal power plant sludge needs to be dewatered before co-firing, then dried and crushed, and finally co-firing. However, most dewatering devices dewater the sludge by heating and stirring it from the outside, which has problems such as low efficiency and long time. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a direct blending system for power plant sludge and its usage method, primarily to solve the problems of low efficiency and long dewatering time for sludge.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A direct blending system for power plant sludge includes a housing. A hydraulic cylinder is fixedly connected to the top outer wall of the housing. A heat-conducting plate is provided inside the housing, and one end of the hydraulic rod of the hydraulic cylinder is fixed to the heat-conducting plate. A second heating wire is installed inside the heat-conducting plate. A feed pipe is inserted and fixedly connected to the top of the housing. Two connecting blocks are fixedly connected to the inner walls of both sides of the housing. A perforated plate is provided inside the housing, and a first heating wire is installed inside the perforated plate. Multiple connecting posts are fixedly connected to the bottom outer wall of the perforated plate, and the connecting posts are inserted into the connecting blocks. A motor is fixedly connected to one outer wall of the housing. A reciprocating screw is movably connected to the inside of one side of the housing, and one end of the motor output shaft is fixed to the reciprocating screw. A slide is threaded to the outside of the reciprocating screw. Two second telescopic rods are fixedly connected to the bottom of the slide. A slide block is fixedly connected between the extended ends of the two second telescopic rods. A spring is sleeved on the outside of the second telescopic rod, and both ends of the spring are fixed to the slide and the slide block, respectively. Multiple protrusions are fixedly connected to one side of the slide block. A feeding assembly is provided on one side of the housing.

[0009] Furthermore, the feeding assembly includes a discharge port located on one side of the housing. A connecting barrel is fixedly connected inside the discharge port. A second rotating shaft is movably connected to the inner wall of one side of the connecting barrel. A spiral blade is fixedly connected to the outer side of the second rotating shaft. A feeding pipe is fixedly connected to the bottom of the connecting barrel. One end of the second rotating shaft passes through the connecting barrel and is keyed to a large gear. Two fixing blocks are fixedly connected to the top outer wall of the connecting barrel. A first rotating shaft is inserted and fixed between the two fixing blocks. The first rotating shaft passes through the housing and is fixed to a reciprocating lead screw. A small gear is keyed to one end of the first rotating shaft, and the small gear meshes with the large gear.

[0010] Based on the aforementioned scheme, a fixing rod is fixedly connected to one side of the inner wall of the housing, and the fixing rod is slidably connected to the slide. An inclined surface is provided on one side of the slide.

[0011] As a further embodiment of the present invention, a discharge pipe is fixedly connected to the top of the housing, and a valve is installed at the bottom of the discharge pipe.

[0012] Furthermore, a groove is provided in the middle of the heat-conducting plate, and the feed pipe passes through the groove.

[0013] Based on the aforementioned scheme, a first telescopic rod is inserted and fixed to the top of the shell, and the extended end of the first telescopic rod passes through the shell and is fixed to the heat-conducting plate.

[0014] As a further embodiment of the present invention, an installation port is provided on one side of the housing, and two rotating doors are movably connected within the installation port, with a handle fixedly connected to one side of each rotating door.

[0015] Furthermore, the heat-conducting plate is located above the sprue plate.

[0016] This invention also proposes a method for using a direct blending system for power plant sludge, comprising the following steps:

[0017] S1: First, the sludge enters the shell through the feed pipe, so that the sludge is located above the filter plate, and the filter plate filters the water in the sludge;

[0018] S2: Start the hydraulic cylinder, extend the hydraulic cylinder to move the heat conduction plate downward and close to the sludge, start the first heating wire and the second heating wire, so that the first heating wire and the second heating wire simultaneously heat and dehydrate the bottom and top of the sludge;

[0019] S3: Start the motor. The motor rotation causes the reciprocating screw to rotate clockwise, which in turn causes the slide to move back and forth along the reciprocating screw. This, in turn, causes the slide to move the protrusions to disturb and turn the sludge, making the dewatering effect more efficient.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention provides a direct blending system for power plant sludge and its usage method, which has the following beneficial effects:

[0022] 1. This invention can not only heat and dewater sludge through the first heating wire and the second heating wire, but also move the slide block to disturb and turn the sludge, thereby making the dewatering effect more uniform and efficient and improving the dewatering efficiency of the device.

[0023] 2. The present invention has a feeding component, which makes the spiral blade rotate and move the dewatered sludge inside the shell, so as to facilitate automatic feeding of the device, save the time of the staff and improve the convenience of the device.

[0024] 3. In this invention, the second telescopic rod can guide the slide block, enabling it to move stably. At the same time, the spring can keep the slide block and the sluice plate in close contact, improving the effectiveness of the device.

[0025] 4. In this invention, the fixed rod can guide the slide, enabling the slide to move stably, and the inclined surface can guide the overturned sludge. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front three-dimensional structure of a power plant sludge direct blending system proposed in this invention;

[0027] Figure 2 This is a schematic cross-sectional view of the shell structure of a power plant sludge direct blending system proposed in this invention;

[0028] Figure 3 This is a schematic diagram of the rear three-dimensional structure of a power plant sludge direct blending system proposed in this invention;

[0029] Figure 4 This is a schematic diagram of the protrusion assembly structure of a direct blending system for power plant sludge proposed in this invention;

[0030] Figure 5 This is a partially enlarged structural diagram of a direct blending system for power plant sludge proposed in this invention;

[0031] Figure 6 This is a schematic cross-sectional view of the perforated plate structure of a direct sludge blending system for power plants proposed in this invention.

[0032] Figure 7 This is a schematic diagram of the connecting block assembly structure of a power plant sludge direct blending system proposed in this invention.

[0033] In the diagram: 1. Shell; 2. Hydraulic cylinder; 3. Feed pipe; 4. First telescopic rod; 5. Rotating door; 6. Handle; 7. Fixed rod; 8. Reciprocating screw; 9. Groove; 10. Heat-conducting plate; 11. Discharge port; 12. Strainer plate; 13. Valve; 14. Discharge pipe; 15. Fixed block; 16. First rotating shaft; 17. Small gear; 18. Large gear; 19. Connecting barrel; 20. Feed pipe; 21. Protrusion; 22. Slide seat; 23. Inclined surface; 24. Spring; 25. Second telescopic rod; 26. Slide frame; 27. First heating wire; 28. Second heating wire; 29. ​​Second rotating shaft; 30. Spiral blade; 31. Connecting column; 32. Connecting block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figures 1-7A direct sludge blending system for power plants includes a housing 1. A hydraulic cylinder 2 is bolted to the top outer wall of the housing 1. A heat-conducting plate 10 is provided inside the housing 1, and one end of the hydraulic rod of the hydraulic cylinder 2 is fixed to the heat-conducting plate 10. A second heating wire 28 is installed inside the heat-conducting plate 10. A feed pipe 3 is inserted and fixed to the top of the housing 1. Two connecting blocks 32 are bolted to the inner walls of both sides of the housing 1. A perforated plate 12 is provided inside the housing 1. Sludge enters the housing 1 through the feed pipe 3, so that the sludge is located above the perforated plate 12. The perforated plate 12 filters the water in the sludge. A first heating wire 27 is installed inside the perforated plate 12. When the hydraulic cylinder 2 extends, it moves the heat-conducting plate 10 downward, bringing it closer to the sludge. The first heating wire 27 and the second heating wire 28 are activated, so that the first heating wire 27 and the second heating wire 28 heat and dehydrate the sludge. Multiple connecting posts 31 are bolted to the bottom outer wall of the perforated plate 12, and the connecting posts 31 are inserted into the connecting blocks 32. A motor is bolted to one side of the outer wall. A reciprocating screw 8 is rotatably connected to the inside of one side of the housing 1, and one end of the motor output shaft is fixed to the reciprocating screw 8. A slide 26 is threaded to the outside of the reciprocating screw 8. Two second telescopic rods 25 are bolted to the bottom of the slide 26. A slide seat 22 is bolted between the extended ends of the two second telescopic rods 25. The second telescopic rods 25 can guide the slide seat 22 to move stably. A spring 24 is sleeved on the outside of the second telescopic rods 25. The spring 24 can keep the slide seat 22 in contact with the sluice plate 12, and the two ends of the spring 24 are fixed to the slide 26 and the slide seat 22 respectively. Multiple protrusions 21 are bolted to one side of the slide seat 22. The rotation of the motor causes the reciprocating screw 8 to rotate clockwise, thereby causing the slide seat 22 to move back and forth along the reciprocating screw 8. This causes the slide seat 22 to move the protrusions 21 to disturb and turn the sludge, thereby making the dewatering effect more efficient. A feeding assembly is provided on one side of the housing 1.

[0036] In this invention, it should be noted that the feeding assembly includes a discharge port 11, which is located on one side of the housing 1. A connecting barrel 19 is fixedly connected inside the discharge port 11. A second rotating shaft 29 is rotatably connected to the inner wall of one side of the connecting barrel 19. A spiral blade 30 is fixed to the outer side of the second rotating shaft 29 by bolts. A feeding pipe 20 is fixedly connected to the bottom of the connecting barrel 19. One end of the second rotating shaft 29 passes through the connecting barrel 19 and is keyed to a large gear 18. The top outer wall of the connecting barrel 19 is fixed by bolts. Two fixed blocks 15 are fixed together, and a first rotating shaft 16 is inserted and fixed between the two fixed blocks 15. The first rotating shaft 16 passes through the housing 1 and is fixed to the reciprocating screw 8. One end of the first rotating shaft 16 is keyed to a small gear 17, which meshes with a large gear 18. When material needs to be discharged, the motor drives the reciprocating screw 8 to reverse, which in turn causes the small gear 17 to drive the large gear 18 to rotate clockwise. This, in turn, causes the second rotating shaft 29 to drive the spiral blade 30 to rotate, allowing the sludge inside the housing 1 to enter. The sludge is fed into the connecting bucket 19 and discharged through the discharge pipe 20. A fixing rod 7 is fixed to one side of the inner wall of the housing 1 by bolts, and the fixing rod 7 is slidably connected to the slide 26. The fixing rod 7 can guide the slide 26 to move stably. A slope 23 is provided on one side of the slide 22, which can guide the tumbling sludge. The top of the housing 1 is connected to and fixed with the discharge pipe 14. A valve 13 is installed at the bottom of the discharge pipe 14 to facilitate the discharge of filtered sewage. A groove 9 is provided in the middle of the heat-conducting plate 10, and the feed pipe 3 passes through the groove 9. A first telescopic rod 4 is inserted and fixed to the top of the housing 1, and the extended end of the first telescopic rod 4 passes through the housing 1 and is fixed to the heat-conducting plate 10. The first telescopic rod 4 can guide the heat-conducting plate 10 to move stably. An installation port is provided on one side of the housing 1. Two rotating doors 5 are rotatably connected in the installation port. A handle 6 is fixed to one side of the rotating door 5 by bolts. The heat-conducting plate 10 is located above the strainer plate 12.

[0037] The working principle of this embodiment is as follows: When sludge needs to be dried, the sludge first enters the housing 1 through the feed pipe 3, placing it above the strainer plate 12. The strainer plate 12 filters the water in the sludge. Then, the hydraulic cylinder 2 is activated, extending to move the heat-conducting plate 10 downwards, bringing it closer to the sludge. The first heating wire 27 and the second heating wire 28 are activated, heating and dehydrating the sludge. Then, the motor is started, causing the reciprocating screw 8 to rotate clockwise, thus moving the slide 22 back and forth along the reciprocating screw 8, thereby driving the slide 22... The moving protrusion 21 disturbs and flips the sludge, making the dewatering effect more efficient. At the same time, the reciprocating screw 8 rotates, causing the first rotating shaft 16 to drive the small gear 17 to rotate, which in turn causes the large gear 18 to drive the spiral blade 30 on the second rotating shaft 29 to rotate counterclockwise, pushing the material entering the connecting bucket 19 onto the strainer 12 inside the shell 1. When it is necessary to discharge the material, the motor drives the reciprocating screw 8 to reverse, which in turn causes the small gear 17 to drive the large gear 18 to rotate clockwise, which in turn causes the second rotating shaft 29 to drive the spiral blade 30 to rotate, allowing the sludge inside the shell 1 to enter the connecting bucket 19 and be discharged through the discharge pipe 20.

[0038] A method for using a direct blending system for power plant sludge includes the following steps:

[0039] S1: First, the sludge enters the interior of the shell 1 through the feed pipe 3, so that the sludge is located above the strainer plate 12, and the strainer plate 12 filters the water in the sludge.

[0040] S2: Start hydraulic cylinder 2, extend hydraulic cylinder 2 to move heat conduction plate 10 downward and close to sludge, start first heating wire 27 and second heating wire 28, so that first heating wire 27 and second heating wire 28 simultaneously heat and dehydrate the bottom and top of sludge;

[0041] S3: Start the motor. The motor rotation causes the reciprocating screw 8 to rotate clockwise, which in turn causes the slide 22 to move back and forth along the reciprocating screw 8. This causes the slide 22 to move the protrusion 21 to disturb and turn the sludge, thereby making the dewatering effect more efficient.

[0042] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0043] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely 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. Furthermore, 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 process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct blending system for power plant sludge, comprising a shell (1), characterized in that, A hydraulic cylinder (2) is fixedly connected to the top outer wall of the housing (1). A heat-conducting plate (10) is provided inside the housing (1), and one end of the hydraulic rod of the hydraulic cylinder (2) is fixed to the heat-conducting plate (10). A second heating wire (28) is installed inside the heat-conducting plate (10). A feed pipe (3) is inserted and fixed to the top of the housing (1). Two connecting blocks (32) are fixedly connected to the inner walls on both sides of the housing (1). A sluice plate (12) is provided inside the housing (1). A first heating wire (27) is installed inside the sluice plate (12). The bottom outer wall of the housing (1) is fixedly connected with multiple connecting columns (31), and the connecting columns (31) are inserted into the inside of the connecting block (32). A motor is fixedly connected to one side outer wall of the housing (1), and a reciprocating screw (8) is movably connected to one side of the housing (1). One end of the motor output shaft is fixed to the reciprocating screw (8). A slide (26) is threaded to the outside of the reciprocating screw (8). Two second telescopic rods (25) are fixedly connected to the bottom of the slide (26). A slide block (22) is fixedly connected between the extended ends of the two second telescopic rods (25). A spring (24) is sleeved on the outside of the telescopic rod (25), and the two ends of the spring (24) are fixed to the slide (26) and the slide seat (22) respectively. A plurality of protrusions (21) are fixedly connected to one side of the slide seat (22). A feeding assembly is provided on one side of the housing (1). The feeding assembly includes a discharge port (11). The discharge port (11) is opened on one side of the housing (1). A connecting barrel (19) is fixedly connected inside the discharge port (11). A second rotating shaft (29) is movably connected to the inner wall of one side of the connecting barrel (19). A spiral is fixedly connected to the outside of the second rotating shaft (29). The bottom of the connecting barrel (19) is connected to the feed pipe (20), one end of the second rotating shaft (29) passes through the connecting barrel (19) and is keyed to a large gear (18). The top outer wall of the connecting barrel (19) is fixedly connected to two fixing blocks (15), and a first rotating shaft (16) is inserted and fixed between the two fixing blocks (15). The first rotating shaft (16) passes through the housing (1) and is fixed to the reciprocating screw (8). One end of the first rotating shaft (16) is keyed to a small gear (17), and the small gear (17) meshes with the large gear (18).

2. The power plant sludge direct blending system according to claim 1, characterized in that, A fixing rod (7) is fixedly connected to one side of the inner wall of the housing (1), and the fixing rod (7) is slidably connected to the slide (26). An inclined surface (23) is provided on one side of the slide (22).

3. The power plant sludge direct blending system according to claim 1, characterized in that, The top of the housing (1) is connected to and fixed with a discharge pipe (14), and a valve (13) is installed at the bottom of the discharge pipe (14).

4. The power plant sludge direct blending system according to claim 1, characterized in that, The heat-conducting plate (10) has a groove (9) in the middle position, and the feed pipe (3) passes through the groove (9).

5. A direct blending system for power plant sludge according to claim 1, characterized in that, The top of the housing (1) is fixedly connected to a first telescopic rod (4), and the extended end of the first telescopic rod (4) passes through the housing (1) and is fixed to the heat-conducting plate (10).

6. The power plant sludge direct blending system according to claim 1, characterized in that, The housing (1) has an installation opening on one side, and two rotating doors (5) are movably connected inside the installation opening. A handle (6) is fixedly connected to one side of the rotating door (5).

7. A direct blending system for power plant sludge according to claim 1, characterized in that, The heat-conducting plate (10) is located above the sprue plate (12).

8. The method of using a power plant sludge direct blending system according to claim 1, characterized in that, Includes the following steps: S1: First, the sludge enters the shell (1) through the feed pipe (3), so that the sludge is located above the filter plate (12), and the filter plate (12) filters the water in the sludge; S2: Start the hydraulic cylinder (2), extend the hydraulic cylinder (2) to move the heat-conducting plate (10) downward and bring it close to the sludge, start the first heating wire (27) and the second heating wire (28) to simultaneously heat and dehydrate the bottom and top of the sludge; S3: Start the motor. The motor rotation causes the reciprocating screw (8) to rotate clockwise, which causes the slide (22) to move back and forth along the reciprocating screw (8). This causes the slide (22) to move the protrusion (21) to disturb and turn the sludge, making the dewatering effect more efficient.

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