Sludge carbonization device with dehydration pretreatment structure

Abstract

The utility model relates to the technical field of sludge carbonization, and particularly discloses a sludge carbonization device with a dehydration pretreatment structure, which comprises a carbonization box, the carbonization box is of a cuboid structure with a hollow rear part, a carbonization cylinder is fixedly arranged in the carbonization box, the carbonization cylinder is of a hollow cylinder structure, and the dehydration pretreatment structure is arranged in the carbonization box. And a heating base is arranged on the lower surface of the carbonization barrel and fixedly installed on the inner wall of the carbonization box, a heating module is arranged in the heating base, and a discharging pipe is arranged on the lower edge of the carbonization barrel in a penetrating mode. According to the sludge carbonization device with the dehydration pretreatment structure, the carbonization barrel and the heating base are arranged in the device to realize the carbonization process of sludge, and before entering the carbonization barrel, the sludge firstly enters the dehydration barrel driven by the second motor to be subjected to centrifugal dehydration treatment, so that the moisture content in the sludge is reduced; the dewatered sludge enters the subsequent carbonization process, so that the sludge can be carbonized more efficiently, the carbonization time is shortened, and the carbonization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge carbonization technology, specifically to a sludge carbonization device equipped with a dewatering pretreatment structure. Background Technology

[0002] Sludge carbonization is a treatment technology that converts sludge into stable carbonaceous products, thereby reducing, rendering harmless, and recycling sludge. It effectively solves the environmental problems caused by sludge and creates certain economic value. Therefore, sludge carbonization is increasingly being applied in the field of sludge treatment.

[0003] Sludge typically contains a large amount of water, and high water content increases energy consumption in the carbonization process and reduces carbonization efficiency. Currently, in the carbonization process of sludge, sludge that has not been dewatered is usually put into the carbonization device for carbonization. Therefore, the heating system needs to consume a lot of energy to evaporate the water, which prolongs the carbonization time and also increases the cost of sludge carbonization. Utility Model Content

[0004] The purpose of this invention is to provide a sludge carbonization device with a pre-dewatering treatment structure. This device adds a dewatering treatment step to the sludge before carbonization treatment, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge carbonization device with a dewatering pretreatment structure, comprising a carbonization box, the carbonization box being a hollow cuboid structure, a carbonization cylinder being fixedly installed inside the carbonization box, the carbonization cylinder being a hollow cylindrical structure, a heating seat being provided on the lower surface of the carbonization cylinder, the heating seat being fixedly installed on the inner wall of the carbonization box, a heating module being provided inside the heating seat, a discharge pipe being provided through the lower side of the carbonization cylinder, a valve being provided inside the discharge pipe, a pretreatment structure being provided on one side of the carbonization cylinder, the pretreatment structure including a dewatering structure and a preheating conveying structure to realize the dewatering and preheating process of the sludge, the pretreatment structure including a pretreatment box, the pretreatment box being a hollow cylindrical structure, a partition being fixedly installed on the inner wall of the pretreatment box, the partition being a frustum-shaped structure, the partition dividing the interior of the pretreatment box into an upper chamber and a lower chamber.

[0006] Preferably, the upper chamber of the pretreatment box is provided with a dehydration structure, which includes a dehydration cylinder. The dehydration cylinder is a hollow cylindrical structure, and a circular water inlet is provided on the surface of the dehydration cylinder. The lower surface of the dehydration cylinder is rotatably mounted on the upper surface of the partition. The upper part of the dehydration cylinder is connected to the feed hopper through a pipe. The feed hopper is fixedly mounted on the upper surface of the pretreatment box. A drain pipe is provided through the side surface of the pretreatment box. The drain pipe is in contact with the upper surface of the partition. A driving structure is provided on the outer surface of the dehydration cylinder, which can realize the rotation of the dehydration cylinder.

[0007] Using the above technical solution, the sludge can be centrifugally dewatered using the dewatering structure.

[0008] Preferably, the drive structure includes a second motor, which is fixedly mounted on the upper surface of the pretreatment box. A drive gear is fixedly connected to the extended end of the second motor. The drive gear penetrates the side surface of the pretreatment box. A driven gear meshes with one side of the drive gear. The driven gear has a circular ring structure and is fixedly mounted on the outer surface of the dehydration cylinder.

[0009] Using the above technical solution, the rotation of the dewatering drum can be achieved by using motor No. 2 to dewater the sludge.

[0010] Preferably, the lower chamber of the pretreatment box is provided with a preheating conveying structure, which uses the residual heat from the sludge carbonization process to preheat the sludge during the conveying process.

[0011] By adopting the above technical solution, the sludge can be preheated during the transportation process using a preheating conveying structure.

[0012] Preferably, the preheating conveying structure includes a feeding cylinder, which is a hollow cylindrical structure. The feeding cylinder is fixedly installed on the lower inner wall of the pretreatment box. One end of the feeding cylinder penetrates the surface of the pretreatment box and the carbonization box and is inserted into the interior of the carbonization cylinder. A circular valve is provided on the surface of the end of the feeding cylinder inserted into the carbonization cylinder. A pipe is provided on the upper surface of the feeding cylinder and is connected to the lower surface of the dewatering cylinder. An auger is provided inside the feeding cylinder and is fixedly connected to the output end of a No. 3 motor. The No. 3 motor is fixedly installed on the side surface of the pretreatment box. A conveying pipe is spirally provided on the outer surface of the feeding cylinder. One end of the conveying pipe penetrates the side surface of the pretreatment box, and the other end of the conveying pipe is inserted into the surface of the feeding cylinder.

[0013] By adopting the above technical solution, the waste heat generated during the sludge carbonization process can be reused to preheat the sludge using the conveying pipe.

[0014] Preferably, a No. 1 motor is fixedly installed on the side surface of the carbonization cylinder, and a stirring rod is fixedly installed at the output end of the No. 1 motor, with the stirring rod located inside the feeding cylinder.

[0015] Using the above technical solution, the sludge in the carbonization process can be uniformly stirred by using a rotating stirring rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the sludge carbonization device equipped with a dewatering pretreatment structure:

[0017] 1. This device is equipped with a carbonization cylinder and a heating base to realize the carbonization process of sludge. Before entering the carbonization cylinder, the sludge first enters the dewatering cylinder driven by motor No. 2 for centrifugal dewatering treatment to reduce the water content in the sludge. The dewatered sludge enters the subsequent carbonization process, which can carbonize the sludge more efficiently, shorten the carbonization time, and thus improve the carbonization efficiency.

[0018] 2. This device is equipped with a stirring rod inside the carbonization cylinder, driven by motor No. 1. During the carbonization process of sludge, the stirring rod continuously stirs the sludge, making the sludge heat more evenly and avoiding the impact of local overheating or uneven heating on the carbonization efficiency, thereby ensuring the carbonization quality.

[0019] 3. This device is equipped with a feeding cylinder after sludge dewatering and before sludge carbonization. A spiral conveying pipe is installed on the outer surface of the feeding cylinder, which is connected to the carbonization cylinder. The waste heat generated during the carbonization process in the carbonization cylinder is used to preheat the sludge on the surface of the feeding cylinder, so that the sludge has a certain temperature when it enters the carbonization cylinder, which further improves the carbonization reaction rate, increases the carbonization efficiency, and reduces energy consumption. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the carbonization box of this utility model;

[0023] Figure 4 This is a schematic diagram of the front section structure of the carbonization cylinder of this utility model;

[0024] Figure 5 This is a schematic diagram of the front section structure of the pretreatment box of this utility model;

[0025] Figure 6 This is a schematic diagram of the front section structure of the feeding cylinder of this utility model;

[0026] Figure 7 This is a schematic diagram of the front section structure of the dehydration cylinder of this utility model.

[0027] In the diagram: 1. Carbonization box; 2. Carbonization cylinder; 3. Heating seat; 4. Discharge pipe; 5. Motor No. 1; 6. Stirring rod; 7. Pretreatment box; 8. Baffle plate; 9. Dewatering cylinder; 10. Feed hopper; 11. Drain pipe; 12. Motor No. 2; 13. Drive gear; 14. Driven gear; 15. Feeding cylinder; 16. Screwdriver; 17. Motor No. 3; 18. Conveying pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-7 This utility model provides a technical solution: a sludge carbonization device with a dewatering pretreatment structure, including a carbonization box 1, a carbonization cylinder 2, a heating seat 3, a discharge pipe 4, a first motor 5, a stirring rod 6, a pretreatment box 7, a partition 8, a dewatering cylinder 9, a feeding hopper 10, a drain pipe 11, a second motor 12, a drive gear 13, a driven gear 14, a feeding cylinder 15, an auger 16, a third motor 17, and a conveying pipe 18.

[0030] The carbonization box 1 is a hollow cuboid structure. A carbonization cylinder 2 is fixedly installed inside the carbonization box 1. The carbonization cylinder 2 is a hollow cylindrical structure. A heating seat 3 is provided on the lower surface of the carbonization cylinder 2. The heating seat 3 is fixedly installed on the inner wall of the carbonization box 1. A heating module is provided inside the heating seat 3. A discharge pipe 4 is provided through the lower side of the carbonization cylinder 2. A valve is provided inside the discharge pipe 4. A pretreatment structure is provided on one side of the carbonization cylinder 2. The pretreatment structure includes a dewatering structure and a preheating conveying structure to realize the dewatering and preheating process of sludge. The pretreatment structure includes a pretreatment box 7. The pretreatment box 7 is a hollow cylindrical structure. A partition 8 is fixedly installed on the inner wall of the pretreatment box 7. The partition 8 is a frustum-shaped structure. The partition 8 divides the interior of the pretreatment box 7 into an upper chamber and a lower chamber. A No. 1 motor 5 is fixedly installed on the side surface of the carbonization cylinder 2. A stirring rod 6 is fixedly installed at the output end of the No. 1 motor 5. The stirring rod 6 is located inside the feeding cylinder 15.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, during the carbonization process of the sludge using the device, after pretreatment, the sludge enters the interior of the carbonization cylinder 2. The heating module inside the heating base 3 is activated to heat the carbonization cylinder 2. The first motor 5 is started, and the first motor 5 drives the stirring rod 6 to rotate. The rotating stirring rod 6 rotates inside the carbonization cylinder 2 to stir the sludge, so that the sludge is heated evenly. The sludge undergoes a carbonization reaction inside the carbonization cylinder 2. After the carbonization reaction is completed, it is discharged through the discharge pipe 4.

[0032] The upper chamber of the pretreatment box 7 is equipped with a dehydration structure, which includes a dehydration cylinder 9. The dehydration cylinder 9 is a hollow cylindrical structure, and a circular water inlet is provided on the surface of the dehydration cylinder 9. The lower surface of the dehydration cylinder 9 is rotatably mounted on the upper surface of the partition plate 8. The upper part of the dehydration cylinder 9 is connected to the feed hopper 10 through a pipe. The feed hopper 10 is fixedly mounted on the upper surface of the pretreatment box 7. A drain pipe 11 is provided through the side surface of the pretreatment box 7. The drain pipe 11 is in contact with the upper surface of the partition plate 8. A drive structure is provided on the outer surface of the dehydration cylinder 9. The drive structure can realize the rotation of the dehydration cylinder 9. The drive structure includes a second motor 12. The second motor 12 is fixedly mounted on the upper surface of the pretreatment box 7. A drive gear 13 is fixedly connected to the extended end of the second motor 12. The drive gear 13 penetrates the side surface of the pretreatment box 7. A driven gear 14 meshes on one side of the drive gear 13. The driven gear 14 is a circular structure and is fixedly mounted on the outer surface of the dehydration cylinder 9.

[0033] like Figure 5 and Figure 7 As shown, the sludge undergoes dewatering before carbonization. The sludge to be treated is conveyed into the dewatering cylinder 9 through the feed hopper 10. The second motor 12 is started, which drives the drive gear 13 to rotate. The drive gear 13 rotates, which in turn drives the driven gear 14 to rotate, thereby rotating the dewatering cylinder 9. During the rotation of the dewatering cylinder 9, the water in the sludge is thrown out through the water outlet on the surface of the dewatering cylinder 9 under the action of centrifugal force and discharged into the pretreatment box 7 through the drain pipe 11, thus completing the dewatering process of the sludge.

[0034] A preheating conveying structure is provided in the lower chamber of the pretreatment box 7. The preheating conveying structure uses the residual heat from the sludge carbonization process to preheat the sludge during the conveying process. The preheating conveying structure includes a feeding cylinder 15, which is a hollow cylindrical structure. The feeding cylinder 15 is fixedly installed on the inner wall of the lower chamber of the pretreatment box 7. One end of the feeding cylinder 15 penetrates the surface of the pretreatment box 7 and the carbonization box 1 and is inserted into the interior of the carbonization cylinder 2. A circular valve is provided on the surface of the end of the feeding cylinder 15 inserted into the carbonization cylinder 2. A pipe is provided on the upper surface of the feeding cylinder 15 and is connected to the lower surface of the dewatering cylinder 9. An auger 16 is provided inside the feeding cylinder 15. The auger 16 is fixedly connected to the output end of the No. 3 motor 17. The No. 3 motor 17 is fixedly installed on the side surface of the pretreatment box 7. A conveying pipe 18 is spirally provided on the outer surface of the feeding cylinder 15. One end of the conveying pipe 18 penetrates the side surface of the pretreatment box 7, and the other end of the conveying pipe 18 is inserted into the surface of the feeding cylinder 15.

[0035] like Figure 4 , Figure 5 and Figure 6 As shown, the dewatered sludge falls from below the dewatering cylinder 9 into the feeding cylinder 15 through a pipe. The No. 3 motor 17 is started, which drives the auger 16 to rotate. The auger 16 transports the sludge along the feeding cylinder 15 towards the carbonization cylinder 2. During this process, since one end of the conveying pipe 18 is connected to the carbonization cylinder 2, the residual heat generated during the heating process of the carbonization cylinder 2 flows along the conveying pipe 18 to preheat the sludge in the feeding cylinder 15, so that the sludge entering the carbonization process has a certain temperature, thereby improving the carbonization efficiency of the sludge. The preheated sludge reaches the end of the feeding cylinder 15 under the push of the auger 16. The valve is opened, and the sludge enters the carbonization cylinder 2 from the feeding cylinder 15 for carbonization.

[0036] Working principle: When using this sludge carbonization device with a pre-dewatering treatment structure, sludge is fed into the device from the feed hopper 10 and enters the dewatering cylinder 9. The dewatering cylinder 9 is rotated by the No. 2 motor 12 to centrifuge and dewater the sludge, reducing the water content in the subsequent sludge carbonization process. The dewatered sludge enters the feeding cylinder 15 and is conveyed to the carbonization cylinder 2 by the auger 16 inside the feeding cylinder 15. During the conveying process, the sludge is preheated by the conveying pipe 18. The preheated sludge enters the carbonization cylinder 2 for carbonization, and the carbonized product is discharged from the discharge pipe 4, which increases the overall practicality.

[0037] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge carbonization device with a pre-dewatering treatment structure, comprising a carbonization box (1), wherein the carbonization box (1) is a hollow cuboid structure, characterized in that: The carbonization box (1) is fixedly installed with a carbonization cylinder (2). The carbonization cylinder (2) is a hollow cylindrical structure. A heating seat (3) is provided on the lower surface of the carbonization cylinder (2). The heating seat (3) is fixedly installed on the inner wall of the carbonization box (1). A heating module is provided inside the heating seat (3). A discharge pipe (4) is provided through the lower side of the carbonization cylinder (2). A valve is provided inside the discharge pipe (4). A pretreatment structure is provided on one side of the carbonization cylinder (2). The pretreatment structure includes a dewatering structure and a preheating conveying structure to realize the dewatering and preheating process of sludge. The pretreatment structure includes a pretreatment box (7). The pretreatment box (7) is a hollow cylindrical structure. A partition (8) is fixedly installed on the inner wall of the pretreatment box (7). The partition (8) is a frustum-shaped structure. The partition (8) divides the interior of the pretreatment box (7) into an upper chamber and a lower chamber.

2. The sludge carbonization device with a dewatering pretreatment structure according to claim 1, characterized in that: The upper chamber of the pretreatment box (7) is provided with a dehydration structure, which includes a dehydration cylinder (9). The dehydration cylinder (9) is a hollow cylindrical structure, and a circular water inlet is provided on the surface of the dehydration cylinder (9). The lower surface of the dehydration cylinder (9) is rotatably mounted on the upper surface of the partition plate (8). The upper part of the dehydration cylinder (9) is connected to the feed hopper (10) through a pipe. The feed hopper (10) is fixedly mounted on the upper surface of the pretreatment box (7). A drain pipe (11) is provided through the side surface of the pretreatment box (7). The drain pipe (11) is in contact with the upper surface of the partition plate (8). A driving structure is provided on the outer surface of the dehydration cylinder (9). The driving structure can realize the rotation of the dehydration cylinder (9).

3. A sludge carbonization device with a dewatering pretreatment structure according to claim 2, characterized in that: The drive structure includes a second motor (12), which is fixedly installed on the upper surface of the pretreatment box (7). The extended end of the second motor (12) is fixedly connected to a drive gear (13), which penetrates the side surface of the pretreatment box (7). A driven gear (14) meshes with one side of the drive gear (13). The driven gear (14) has a circular ring structure and is fixedly installed on the outer surface of the dehydration cylinder (9).

4. A sludge carbonization device with a dewatering pretreatment structure according to claim 1, characterized in that: The lower chamber of the pretreatment box (7) is equipped with a preheating conveying structure, which uses the residual heat from the sludge carbonization process to preheat the sludge during the conveying process.

5. A sludge carbonization device with a pre-dewatering treatment structure according to claim 4, characterized in that: The preheating conveying structure includes a feeding cylinder (15), which is a hollow cylindrical structure. The feeding cylinder (15) is fixedly installed on the lower inner wall of the pretreatment box (7). One end of the feeding cylinder (15) penetrates the surface of the pretreatment box (7) and the carbonization box (1) and is inserted into the interior of the carbonization cylinder (2). A circular valve is provided on the surface of the end of the feeding cylinder (15) inserted into the carbonization cylinder (2). A pipe is provided on the upper surface of the feeding cylinder (15) to the dewatering cylinder (9). The lower surface of the feeding cylinder (15) is connected through the feeding cylinder (15). An auger (16) is installed inside the feeding cylinder (15). The auger (16) is fixedly connected to the output end of the No. 3 motor (17). The No. 3 motor (17) is fixedly installed on the side surface of the pretreatment box (7). A conveying pipe (18) is spirally arranged on the outer surface of the feeding cylinder (15). One end of the conveying pipe (18) penetrates the side surface of the pretreatment box (7), and the other end of the conveying pipe (18) is inserted into the surface of the feeding cylinder (15).

6. A sludge carbonization device with a dewatering pretreatment structure according to claim 1, characterized in that: A No. 1 motor (5) is fixedly installed on the side surface of the carbonization cylinder (2), and a stirring rod (6) is fixedly installed at the output end of the No. 1 motor (5). The stirring rod (6) is located inside the feeding cylinder (15).

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