Sludge sintering treatment device

Abstract

The application relates to the technical field of sludge sintering, and particularly discloses a sludge sintering treatment device, which comprises a roller, a frame body and a sludge collecting box, the roller is rotatably installed on the frame body, the sludge collecting box is arranged below the roller, a roller door is arranged on the outer peripheral wall of the roller, a plurality of groups of drainage holes are arranged on the outer peripheral wall of the roller, a dehydration assembly is arranged on the frame body, and a stirring assembly is arranged in the roller; the roller door is opened, sludge is added into the roller, the dehydration assembly on the frame body can centrifugally dehydrate the sludge in the roller, the water in the sludge can be drained out of the roller through the drainage holes, so that the water in the sludge is separated, the water content of the sludge is reduced, in addition, the stirring assembly can stir and crush the sludge while the sludge is centrifugally dehydrated, so that the structure of the sludge is destroyed and the combined water in the sludge is separated, and the water content of the sludge can be further reduced; and the sludge collecting box can collect the sludge after dehydration.

Description

Technical Field

[0001] This application relates to the field of sludge sintering technology, and in particular to a sludge sintering treatment device. Background Technology

[0002] Sludge sintering is a technology that uses high-temperature pyrolysis to decompose organic matter and solidify heavy metals in sludge, transforming them into stable inert products. This technology is mainly used for the harmless disposal of sludge generated by municipal sewage treatment plants, electroplating industry, and printing and dyeing industry. During the sintering process, pathogens in the sludge are completely killed, and toxic substances are encapsulated and fixed through the vitrification effect. The final product can be used as building material aggregate or raw material for sintered bricks, realizing the resource utilization of waste. This technology effectively replaces the traditional landfill method, solves the problems of land occupation and secondary pollution, and has become a key means in the field of solid waste treatment.

[0003] In existing technologies, sludge sintering devices typically consist of three main parts: a pretreatment unit, a sintering furnace body, and a waste gas treatment system. The pretreatment unit includes a drainage structure, with drainage holes at the bottom of the drainage box used for preliminary moisture separation. The sintering furnace body is a sealed furnace body lined with refractory material, and multiple openable bottom plates or limiting tracks are installed inside the furnace. The waste gas treatment system consists of an air pump on top of the furnace cover, a pulse bag filter with activated carbon absorption, and connecting pipes, used to absorb harmful gases generated during the sintering process. All structures are tightly connected to the pipes mechanically. Sludge is added to the drainage box, and an electric telescopic rod drives the extrusion head to achieve extrusion and dewatering. The dewatered sludge falls into the furnace cavity, and combustion air is introduced into the furnace through the side air vents. The sintering flue gas is drawn by the air pump to the pulse bag filter with activated carbon absorption for purification before being discharged into the air.

[0004] Regarding the aforementioned technologies, since the sludge is dewatered by only relying on an electric telescopic rod to drive the extrusion head before sintering, it may not be able to drain the water from the sludge. The excessive moisture content of the sludge leads to increased sintering energy consumption. In addition, the extrusion dewatering may also cause blockage of the draining box, which requires frequent shutdowns for cleaning and increases processing costs. Therefore, improvements are needed. Utility Model Content

[0005] In order to reduce the moisture content of sludge, this application provides a sludge sintering treatment apparatus.

[0006] The sludge sintering treatment device provided in this application adopts the following technical solution: A sludge sintering treatment device includes a drum, a frame, and a sludge collection box. The drum is rotatably mounted on the frame, and the sludge collection box is located below the drum. A drum door is provided on the outer peripheral wall of the drum, and multiple sets of drainage holes are opened on the outer peripheral wall of the drum. A dewatering component for centrifugally dewatering the sludge inside the drum is provided on the frame, and a stirring component for stirring and crushing the sludge is provided inside the drum.

[0007] By adopting the above technical solution, the sludge is added into the drum after the drum door is opened. The dewatering component on the frame in this application can centrifugally dewater the sludge in the drum. The water in the sludge can be discharged to the outside of the drum through the drain hole, thereby removing the water from the sludge and reducing the water content of the sludge. In addition, the stirring component in this application can stir and break the sludge while it is centrifugally dewatering, thereby destroying the sludge structure and removing the bound water from the sludge, further reducing the water content of the sludge. The sludge collection box can collect the sludge after dewatering.

[0008] Optionally, the dehydration assembly includes a first drive motor, a gear, a gear plate, and a roller. The first drive motor is bolted to the frame, the gear is fixedly connected to the output end of the first drive motor, the gear plate is fixedly installed on the side wall of the roller near the first drive motor and meshes with the gear, and the frame is provided with a rotating groove for rotating the roller, and the roller is rotatably installed in the rotating groove.

[0009] By adopting the above technical solution, the first drive motor is started, and the output end of the first drive motor drives the gear to rotate. Since the gear and the toothed disc mesh with each other, and the toothed disc is fixedly installed on the side wall of the drum near the first drive motor, the rotation of the gear can synchronously drive the toothed disc and the drum to rotate, thereby realizing the centrifugal separation of water in the sludge, reducing the water content of the sludge, which is convenient for subsequent sintering treatment of the sludge. In addition, the roller can reduce the friction between the drum and the rotating groove, thereby reducing energy loss.

[0010] Optionally, the stirring assembly includes a second drive motor, a rotating rod, a crushing rod, and a stirring rod. The second drive motor is bolted to the end of the frame away from the first drive motor. The rotating rod is fixedly installed on the output end of the second drive motor. The rotating rod passes through the drum and is rotatably installed on the drum. The crushing rod and the stirring rod are both fixedly installed at intervals on the outer peripheral wall of the rotating rod.

[0011] By adopting the above technical solution, the second drive motor is started. The output end of the second drive motor drives the rotating rod to rotate. The rotation of the rotating rod can drive the crushing rod and the stirring rod to rotate, thereby realizing the centrifugal dewatering of sludge while stirring and crushing it. This destroys the sludge structure and removes the bound water from the sludge, further reducing the water content of the sludge. In addition, stirring and crushing the sludge can also reduce the impact of large-volume sludge on the drainage holes.

[0012] Optionally, a centrifugal fan is provided on one side of the frame, and a hot air pipe is connected to the air outlet of the centrifugal fan. The end of the hot air pipe away from the centrifugal fan is connected to the rotating rod, and the rotating rod is hollow. Multiple sets of hot air holes are provided on the rotating rod, and a first filter screen is provided on the side of each set of hot air holes near the stirring rod.

[0013] By adopting the above technical solution, the centrifugal fan is started, and the centrifugal fan outputs hot air through the hot air pipe to the rotating rod. Since the rotating rod is hollow and has multiple sets of hot air holes, the hot air can be blown into the drum through the multiple sets of hot air holes, thereby realizing the simultaneous stirring and crushing of sludge and hot air drying, further reducing the moisture content of the sludge. In addition, the first filter screen can prevent sludge from entering the rotating rod.

[0014] Optionally, multiple sets of crushing teeth are spaced apart on the outer peripheral wall of the crushing rod.

[0015] By adopting the above technical solution, the crushing teeth can stir and crush the materials mixed in the sludge, thereby improving the crushing capacity and working condition adaptability of the crushing bar, and reducing the possibility of the mixed materials clogging the drainage holes.

[0016] Optionally, a scraper is fixedly installed on the outer peripheral wall of the rotating rod.

[0017] By adopting the above technical solution, the rotating rod rotates while driving the scraper to rotate, thereby scraping off the sludge adhering to the inner wall of the drum, reducing the impact of residual sludge on subsequent sludge dewatering, and preventing sludge from clogging the drain hole.

[0018] Optionally, the end of the hot air duct near the rotating rod is provided with a connecting block for connecting the hot air duct and the rotating rod.

[0019] By adopting the above technical solution, the connecting block can connect the hot air pipe and the rotating rod, thereby preventing hot air leakage and improving the utilization rate of hot air.

[0020] Optionally, a water collection tank is horizontally movable above the sludge collection tank, and a moving groove is provided on the frame for the water collection tank to move horizontally.

[0021] By adopting the above technical solution, the water collection tank can collect the sewage discharged from the drum, thereby avoiding sewage pollution of the external environment. After collection, the water collection tank can be moved, which makes it easy to collect the sludge after dewatering in the drum into the sludge collection box.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The dewatering component in this application can centrifuge and dewater the sludge in the drum. The first drive motor is started, and the output end of the first drive motor drives the gear to rotate. Since the gear and the toothed disc mesh with each other, and the toothed disc is fixedly installed on the side wall of the drum near the first drive motor, the rotation of the gear can synchronously drive the toothed disc and the drum to rotate, thereby realizing the centrifugal removal of water from the sludge, reducing the water content of the sludge, and facilitating the subsequent sintering treatment of the sludge. 2. The stirring assembly in this application can stir and crush the sludge. The second drive motor is started, and the output end of the second drive motor drives the rotating rod to rotate. The rotation of the rotating rod can drive the crushing rod and the stirring rod to rotate, thereby realizing the simultaneous centrifugal dewatering and stirring of the sludge, thereby destroying the sludge structure and removing the bound water in the sludge, and further reducing the moisture content of the sludge. 3. The centrifugal fan and hot air pipe in this application can dry the sludge. When the centrifugal fan is started, the centrifugal fan outputs hot air through the hot air pipe to the rotating rod. Since the rotating rod is hollow and has multiple sets of hot air holes, the hot air can be blown into the drum through the multiple sets of hot air holes, thereby realizing the simultaneous stirring and crushing of the sludge and hot air drying, further reducing the moisture content of the sludge. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of part of the structure; Figure 3 This is a partial structural diagram; Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 5 yes Figure 3 Enlarged schematic diagram of part B.

[0025] Reference numerals: 1. Frame; 11. Drum; 12. Sludge collection box; 13. Drum door; 14. Drain hole; 2. Dewatering assembly; 21. First drive motor; 22. Gear; 23. Gear disc; 24. Roller; 25. Rotating trough; 3. Agitating assembly; 31. Second drive motor; 32. Rotating rod; 321. Scraper; 33. Crushing rod; 331. Crushing teeth; 34. Agitating rod; 4. Centrifugal fan; 41. Hot air pipe; 42. Hot air hole; 43. First filter screen; 5. Connecting block; 6. Water collection tank; 61. Moving trough. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a sludge sintering treatment device, referring to... Figure 1 and Figure 2 The sludge sintering treatment device includes a drum 11, a frame 1, and a sludge collection box 12. The drum 11 is rotatably mounted on the frame 1, and the sludge collection box 12 is fixedly mounted below the drum 11. A drum door 13 is hinged to the outer peripheral wall of the drum 11. Multiple sets of drainage holes 14 are opened on the outer peripheral wall of the drum 11. A dewatering component 2 is installed on the frame 1, and a stirring component 3 is installed inside the drum 11.

[0028] Open the drum door 13 and add sludge into the drum 11. In this embodiment, the dewatering component 2 on the frame 1 can centrifuge and dewater the sludge in the drum 11. The water in the sludge can be discharged to the outside of the drum 11 through the drain hole 14, thereby removing the water from the sludge and reducing the water content of the sludge. In addition, the stirring component 3 in this embodiment can stir and break the sludge while it is centrifuged and dewatered, thereby destroying the sludge structure and removing the bound water in the sludge, further reducing the water content of the sludge. The sludge collection box 12 can collect the sludge after dewatering.

[0029] Reference Figure 2 and Figure 4 In this embodiment, the dewatering component 2 can centrifuge the water in the sludge. It includes a first drive motor 21, a gear 22, a gear disc 23, and a roller 24. The first drive motor 21 is bolted to the frame 1. The gear 22 is welded to the output end of the first drive motor 21. The gear disc 23 is fixedly installed on the side wall of the roller 11 near the first drive motor 21 and meshes with the gear 22. The frame 1 has a rotating groove 25, and the roller 24 is rotatably installed in the rotating groove 25.

[0030] When the first drive motor 21 is started, the output end of the first drive motor 21 drives the gear 22 to rotate. Since the gear 22 meshes with the gear disk 23 and the gear disk 23 is fixedly installed on the side wall of the drum 11 near the first drive motor 21, the rotation of the gear 22 can synchronously drive the gear disk 23 and the drum 11 to rotate, thereby centrifuging the water in the sludge to reduce the water content of the sludge, which is convenient for subsequent sintering treatment of the sludge. In addition, the rollers 24 can reduce the friction between the drum 11 and the rotating groove 25, thereby reducing energy loss. In this embodiment, three sets of rollers 24 are respectively provided at both ends of the drum 11. The three sets of rollers 24 are installed in the rotating groove 25 at intervals, and the three sets of rollers 24 can improve the stability of the drum 11 when rotating.

[0031] Reference Figure 2 , Figure 3 and Figure 4 To further reduce the moisture content of the sludge, the stirring assembly 3 in this embodiment includes a second drive motor 31, a rotating rod 32, a crushing rod 33, and a stirring rod 34. The second drive motor 31 is bolted to the end of the frame 1 away from the first drive motor 21. The rotating rod 32 is welded to the output end of the second drive motor 31. The rotating rod 32 passes through the drum 11 and is rotatably mounted on the drum 11. The crushing rod 33 and the stirring rod 34 are welded to the outer peripheral wall of the rotating rod 32 at intervals.

[0032] The second drive motor 31 is started. The output end of the second drive motor 31 drives the rotating rod 32 to rotate. The rotation of the rotating rod 32 can drive the crushing rod 33 and the stirring rod 34 to rotate, thereby realizing the centrifugal dewatering of sludge while stirring and crushing it. This destroys the sludge structure and removes the bound water from the sludge, further reducing the water content of the sludge. In addition, stirring and crushing the sludge can also reduce the impact of large volume sludge on the drainage hole 14.

[0033] Reference Figure 1 , Figure 2 and Figure 5 While the sludge is being stirred and crushed, it also needs to be dried with hot air. Therefore, in this embodiment, a centrifugal fan 4 is bolted to one side of the frame 1. A hot air pipe 41 is connected to the air outlet of the centrifugal fan 4. The end of the hot air pipe 41 away from the centrifugal fan 4 is connected to the rotating rod 32. The rotating rod 32 is hollow and has multiple sets of hot air holes 42. A first filter screen 43 is fixedly installed on the side of the multiple sets of hot air holes 42 near the stirring rod 34.

[0034] Start the centrifugal fan 4. The centrifugal fan 4 outputs hot air through the hot air pipe 41 to the rotating rod 32. Since the rotating rod 32 is hollow and has multiple sets of hot air holes 42, the hot air can be blown into the drum 11 through the multiple sets of hot air holes 42, thereby realizing the simultaneous stirring and crushing of sludge and hot air drying, further reducing the moisture content of sludge. In addition, the first filter screen 43 can prevent sludge from entering the rotating rod 32.

[0035] Reference Figure 3 and Figure 5 When sludge is stirred and crushed, the mixed materials in the sludge may be difficult to crush. Therefore, in this embodiment, multiple sets of crushing teeth 331 are welded to the outer peripheral wall of the crushing rod 33 at intervals. The crushing teeth 331 can stir and crush the mixed materials in the sludge, thereby improving the crushing capacity and working condition adaptability of the crushing rod 33 and reducing the possibility of the mixed materials clogging the drainage hole 14.

[0036] Reference Figure 2 and Figure 3 When the sludge is dewatered inside the drum 11, it will stick to the inner peripheral wall. In order to scrape off the sludge on the inner peripheral wall, in this embodiment, a scraper 321 is welded to the outer peripheral wall of the rotating rod 32. When the rotating rod 32 rotates, it drives the scraper 321 to rotate, thereby scraping off the sludge sticking to the inner peripheral wall of the drum 11, reducing the impact of residual sludge on subsequent sludge dewatering, and preventing sludge from clogging the drain hole 14.

[0037] Reference Figure 4 When hot air is delivered to the drum 11 through the hot air pipe 41, there may be hot air leakage at the connection between the hot air pipe 41 and the rotating rod 32. Therefore, in this embodiment, a connecting block 5 is fixedly installed at the end of the hot air pipe 41 near the rotating rod 32. The connecting block 5 can connect the hot air pipe 41 and the rotating rod 32, thereby preventing hot air leakage and improving the utilization rate of hot air. In this embodiment, a guide block is fixedly installed inside the connecting block. The guide block can guide the hot air to be delivered to the rotating rod 32, thereby reducing the consumption of hot air at the right-angle bend of the connecting block 5.

[0038] Reference Figure 1 To collect the wastewater inside the drum 11, a water collection tank 6 is horizontally installed above the sludge collection box 12 in this embodiment. A movable groove 61 is provided on the frame 1. The water collection tank 6 can collect the wastewater discharged from the drum 11, thereby avoiding wastewater pollution of the external environment. After collection, the water collection tank 6 can be moved to facilitate the collection of sludge after dewatering in the drum 11 into the sludge collection box 12. In this embodiment, a shell is rotatably installed on the frame 1 to prevent the wastewater inside the drum 11 from splashing to the outside. The shell has an opening for easy addition and removal of sludge. When dewatering the sludge, the opening is vertically downward, and the shell can directly discharge the collected wastewater into the water collection tank 6.

[0039] The implementation principle of a sludge sintering treatment device according to an embodiment of this application is as follows: The first drive motor 21 is started. The output end of the first drive motor 21 drives the gear 22 to rotate. Since the gear 22 meshes with the gear disk 23 and the gear disk 23 is fixedly installed on the side wall of the drum 11 near the first drive motor 21, the rotation of the gear 22 can synchronously drive the gear disk 23 and the drum 11 to rotate, thereby centrifuging the water in the sludge to reduce the water content of the sludge and facilitate the subsequent sintering treatment of the sludge. The second drive motor 31 is started. The output end of the second drive motor 31 drives the rotating rod 32 to rotate. The rotation of the rotating rod 32 can drive the crushing rod 33 and the stirring rod 34 to rotate, thereby realizing the centrifugal dewatering of sludge while stirring and crushing it, thereby destroying the sludge structure and removing the bound water in the sludge, further reducing the water content of the sludge. Start the centrifugal fan 4. The centrifugal fan 4 outputs hot air through the hot air pipe 41 to the rotating rod 32. Since the rotating rod 32 is hollow and has multiple sets of hot air holes 42, the hot air can be blown into the drum 11 through the multiple sets of hot air holes 42, thereby realizing the simultaneous stirring and crushing of sludge and hot air drying, further reducing the moisture content of sludge.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sludge sintering treatment device, characterized in that: The device includes a drum (11), a frame (1), and a sludge collection box (12). The drum (11) is rotatably mounted on the frame (1). The sludge collection box (12) is located below the drum (11). A drum door (13) is provided on the outer peripheral wall of the drum (11). Multiple sets of drainage holes (14) are opened on the outer peripheral wall of the drum (11). A dewatering component (2) for centrifugally dewatering the sludge in the drum (11) is provided on the frame (1). A stirring component (3) for stirring and crushing the sludge is provided inside the drum (11).

2. The sludge sintering treatment device according to claim 1, characterized in that: The dehydration assembly (2) includes a first drive motor (21), a gear (22), a gear disc (23), and a roller (24). The first drive motor (21) is bolted to the frame (1). The gear (22) is fixedly connected to the output end of the first drive motor (21). The gear disc (23) is fixedly installed on the side wall of the roller (11) near the first drive motor (21) and meshes with the gear (22). The frame (1) has a rotating groove (25) for rotating the roller (11). The roller (24) is rotatably installed in the rotating groove (25).

3. The sludge sintering treatment device according to claim 2, characterized in that: The stirring assembly (3) includes a second drive motor (31), a rotating rod (32), a crushing rod (33), and a stirring rod (34). The second drive motor (31) is bolted to the end of the frame (1) away from the first drive motor (21). The rotating rod (32) is fixedly installed on the output end of the second drive motor (31). The rotating rod (32) passes through the drum (11) and is rotatably installed on the drum (11). The crushing rod (33) and the stirring rod (34) are fixedly installed at intervals on the outer peripheral wall of the rotating rod (32).

4. The sludge sintering treatment device according to claim 3, characterized in that: A centrifugal fan (4) is provided on one side of the frame (1). A hot air pipe (41) is connected to the air outlet of the centrifugal fan (4). The end of the hot air pipe (41) away from the centrifugal fan (4) is connected to the rotating rod (32). The rotating rod (32) is hollow. Multiple sets of hot air holes (42) are provided on the rotating rod (32). A first filter screen (43) is provided on the side of the multiple sets of hot air holes (42) near the stirring rod (34).

5. The sludge sintering treatment device according to claim 3, characterized in that: Multiple sets of crushing teeth (331) are spaced apart on the outer peripheral wall of the crushing rod (33).

6. The sludge sintering treatment device according to claim 3, characterized in that: A scraper (321) is fixedly installed on the outer peripheral wall of the rotating rod (32).

7. The sludge sintering treatment device according to claim 4, characterized in that: The hot air pipe (41) is provided with a connecting block (5) at the end near the rotating rod (32) for connecting the hot air pipe (41) and the rotating rod (32).

8. The sludge sintering treatment device according to claim 1, characterized in that: A water collection tank (6) is horizontally movable above the sludge collection box (12), and a moving groove (61) is provided on the frame (1) for the water collection tank (6) to move horizontally.

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