Dryer with discharging cover sealing device

Abstract

The utility model discloses a dryer with a discharge cover sealing device, which comprises a sealing device main body and a dryer, a discharge cover mounting cylinder is arranged at the end of the dryer, and the sealing device main body is arranged on the discharge cover mounting cylinder. A rubber sealing ring, an outer sealing ring and an inner sealing ring which are of a coaxial structure are sequentially arranged on the sealing device body from outside to inside, the rubber sealing ring is filled with sealing filler, a sealing plate and a discharging cover side sealing plate, a fixing ring plate is arranged on a drying cylinder of the drying machine in a sleeving mode, and an air guide ring pipe is arranged on the face, away from the fixing ring plate, of the rubber sealing ring. And inclined air outlet nozzles are uniformly arranged on one surface, far away from the rubber sealing ring, of the air guide ring pipe at intervals. According to the drying machine with the discharging cover sealing device, the movable sealing structure is arranged between the discharging cover and the drying machine, rigid sealing and elastic sealing are combined, protection treatment of a sealing part is conducted in cooperation with gas, the sealing effect is effectively improved, and the sludge drying treatment effect of the drying machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machines, in particular to a drying machine with a discharge cover sealing device. Background Art

[0002] In the process of sewage sludge treatment, sludge drying can evaporate a large amount of water in the sludge, thereby significantly reducing the volume and weight of the sludge, which is convenient for reducing the cost of subsequent treatment, transportation and disposal. And some organic matter will be decomposed by drying, which helps to improve the stability of the sludge, reduce the risk of odor and pathogens that may be generated during its disposal or utilization, and facilitate resource recovery and reuse, which has important economic and environmental significance.

[0003] When the existing dryer is drying sludge, the discharge hood and the drying cylinder are relatively rotated and connected, resulting in an inadequate seal, thereby allowing the gas generated by the drying to escape, and sludge to leak out, causing environmental pollution and other problems. Utility Model Content

[0004] The purpose of the utility model is to provide a dryer with a discharge hood sealing device to solve the problem raised in the above background technology that when the dryer on the market is performing sludge drying, the discharge hood and the drying cylinder are relatively rotated and connected, resulting in an insufficient seal, thereby allowing the gas generated by the drying to escape, and sludge to leak out, causing environmental pollution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dryer with a discharge hood sealing device, comprising a sealing device main body and a dryer main body, a discharge hood mounting cylinder is provided at the end of the dryer main body, and the sealing device main body is arranged on the discharge hood mounting cylinder, a rubber sealing ring, a sealing outer ring and a sealing inner ring of a coaxial structure are arranged on the sealing device main body from the outside to the inside, and the rubber sealing ring is filled with sealing filler, a fixed ring plate and a discharge hood side sealing plate are respectively provided at both ends of the discharge hood mounting cylinder, and the fixed ring plate is sleeved on the drying cylinder of the dryer main body, so that the sealing device main body is positioned by the fixed ring plate and the discharge hood mounting cylinder, an air guide ring tube is provided on a side of the rubber sealing ring away from the fixed ring plate, and an inclined air outlet nozzle is evenly spaced on a side of the air guide ring tube away from the rubber sealing ring, so that the air outlet nozzle faces the gap between the discharge hood mounting cylinder and the dryer main body.

[0006] Preferably, a support frame is welded and fixed to the lower end of the discharge hood mounting tube, and an air pump is bolted to the support frame. The air outlet end of the air pump is connected to an air inlet pipe, and the air inlet pipe is connected to the bottom of the fixed ring plate through a clamp.

[0007] Preferably, a connecting pipe is fixed to the other end of the air intake pipe through a pipe fitting, and the connecting pipe runs through the rubber sealing ring, and the other end of the connecting pipe is sealed and plugged with the air guide ring pipe.

[0008] Preferably, the size of the discharge hood mounting cylinder is larger than the size of the drying cylinder of the dryer body, a discharge channel is welded at the bottom of the discharge hood mounting cylinder, and a material receiving mechanism is placed below the discharge channel.

[0009] Preferably, the side sealing plate of the discharge hood is a conical structure, and a connecting cylinder is welded on the outside of the side sealing plate of the discharge hood, and an exhaust pipe is fixed to the other end of the connecting cylinder through a flange structure, a sealing ring is provided between the connecting cylinder and the exhaust pipe, and a filter screen cover with a conical structure is clamped and fastened in the connecting cylinder.

[0010] Preferably, the sealing outer ring is made of U-shaped steel, and the sealing outer ring is rotatably clamped with the sealing inner ring, and balls are clamped at even intervals on the outer side of the sealing inner ring, and the balls are in contact with the sealing outer ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the dryer with the discharge hood sealing device is provided with a movable sealing structure between the discharge hood and the dryer, the hard seal and the elastic seal are combined, and the sealing part is protected by gas, so as to effectively improve the sealing effect and ensure the drying effect of the dryer on the sludge. The dryer with the discharge hood sealing device forms a hard seal through a sealing inner ring and a sealing outer ring, and performs a rotation process through a ball, while the elastic seal is composed of a rubber sealing ring and a sealing filler made of rubber material, the hard seal is coated in the rubber sealing ring, and the hard seal and the elastic seal are respectively fixed to the dryer and the discharge hood to ensure the tightness of the rotating seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a drying machine with a discharge cover sealing device according to the utility model;

[0013] Figure 2 The utility model is a drying machine with a discharge cover sealing device Figure 1 The enlarged structural diagram at A in the middle;

[0014] Figure 3 This is a side view of a drying machine with a discharge cover sealing device according to the utility model;

[0015] Figure 4 This is a schematic diagram of a structure in which an air guide ring pipe of a dryer with a discharge cover sealing device is connected to an air inlet pipe through a connecting pipe;

[0016] Figure 5 The utility model is a schematic diagram of the structure of the position of the air outlet nozzle arranged on the air guide ring tube of the dryer with a discharge cover sealing device.

[0017] In the figure: 1. Sealing device body; 2. Fixed ring plate; 3. Rubber sealing ring; 4. Discharge hood mounting cylinder; 5. Discharge hood side sealing plate; 6. Air guide ring tube; 7. Connecting cylinder; 8. Filter screen cover; 9. Exhaust pipe; 10. Sealing ring; 11. Discharge channel; 12. Material receiving mechanism; 13. Dryer body; 14. Inlet pipe; 15. Air pump; 16. Support frame; 17. Connecting pipe; 18. Sealing outer ring; 19. Ball; 20. Sealing inner ring; 21. Sealing filler; 22. Air outlet nozzle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5The utility model provides a technical solution: a dryer with a discharge cover sealing device, comprising a sealing device body 1 and a dryer body 13, a discharge cover mounting cylinder 4 is provided at the end of the dryer body 13, and the sealing device body 1 is arranged on the discharge cover mounting cylinder 4, and a rubber sealing ring 3, a sealing outer ring 18 and a sealing inner ring 20 of a coaxial structure are arranged on the sealing device body 1 from the outside to the inside, and a sealing filler 21 is filled in the rubber sealing ring 3, and the sealing filler 21 and the rubber sealing ring 3 form a flexible sealing structure. The sealing filler 21 is made of asbestos, PTFE and other materials, and has a shock-absorbing effect, allowing a small rotation deviation between the dryer body 13 and the discharge cover mounting cylinder 4, and the two ends of the discharge cover mounting cylinder 4 are respectively provided with a fixing ring plate 2 to And the side sealing plate 5 of the discharge hood, the lower end of the discharge hood mounting cylinder 4 is welded and fixed with a support frame 16, and the air pump 15 is bolted on the support frame 16, the air outlet end of the air pump 15 is connected with the air inlet pipe 14, and the air inlet pipe 14 is connected to the bottom of the fixed ring plate 2 through a clamp, this structure makes the discharge hood mounting cylinder 4 structure stable through the support frame 16, so that the drying cylinder of the dryer body 13 can be rotated and positioned through the discharge hood mounting cylinder 4, the air pump 15 is an existing electric air pump structure, and a filter is set at the air inlet part, the other end of the air inlet pipe 14 is fixed with a connecting pipe 17 through a pipe fitting, and the connecting pipe 17 runs through the rubber sealing ring 3, and the other end of the connecting pipe 17 is sealed and plugged with the air guide ring pipe 6, this structure enables the air pump 15 to introduce compressed air into the air guide ring pipe 6, the air guide The annular tube 6 sprays compressed gas to the gap between the discharge hood mounting cylinder 4 and the dryer body 13 through the air outlet nozzle 22 to prevent dust-containing gas from entering the gap between the discharge hood mounting cylinder 4 and the dryer body 13 to prevent rotation jamming, and the sealing structure is treated with dust protection, and the fixed ring plate 2 is sleeved on the drying cylinder of the dryer body 13, so that the sealing device body 1 is positioned through the fixed ring plate 2 and the discharge hood mounting cylinder 4. The size of the discharge hood mounting cylinder 4 is larger than the size of the drying cylinder of the dryer body 13, and a discharge channel 11 is welded at the bottom of the discharge hood mounting cylinder 4, and a material receiving mechanism 12 is placed under the discharge channel 11. This structure allows the material to smoothly enter the discharge hood mounting cylinder 4 after being discharged through the dryer body 13, and be discharged from the discharge channel 11 for drying. The material of the discharge hood side sealing plate 5 is a conical structure, and a connecting cylinder 7 is welded on the outer side of the discharge hood side sealing plate 5, and an exhaust pipe 9 is fixed to the other end of the connecting cylinder 7 through a flange structure, and a sealing ring 10 is arranged between the connecting cylinder 7 and the exhaust pipe 9, and a filter screen cover 8 with a conical structure is clamped and fastened in the connecting cylinder 7. The side sealing plate 5 of the discharge hood and the discharge hood mounting cylinder 4 of this structure are sealed and fixed with bolts to form a discharge hood structure for material discharge processing, and by setting the exhaust pipe 9, the dryer body 13 can be subjected to hot air circulation processing, and the filter screen cover 8 is used for filtering the discharged gas, and the filter screen cover 8 is arranged by clamping, which is easy to be taken down for cleaning, and the rubber sealing ring 3 is fixed to the discharge hood mounting cylinder 4 by bolts,An air guide ring tube 6 is provided on one side of the rubber sealing ring 3 away from the fixed ring plate 2, and an air guide ring tube 6 is evenly spaced and obliquely arranged on one side of the rubber sealing ring 3, so that the air outlet nozzles 22 face the gap between the discharge cover mounting cylinder 4 and the dryer body 13. The sealing outer ring 18 is made of U-shaped steel, and the sealing outer ring 18 is rotatably connected with the sealing inner ring 20. Balls 19 are evenly spaced and engaged with the outer side of the sealing inner ring 20, and the balls 19 are contacted with the sealing outer ring 18. This structure allows the sealing outer ring 18 to be fixed by bolts by forming two semicircular structures, so that the sealing outer ring 18 can smoothly fix the sealing inner ring 20, so that the sealing inner ring 20 and the sealing outer ring 18 form a hard sealing structure, and the sealing inner ring 20 and the sealing outer ring 18 can move with each other through the balls 19. The sealing inner ring 20 is fixed to the drying cylinder of the dryer body 13 by bolts.

[0020] Working principle: When using the dryer with the discharge cover sealing device, first, when the sludge passes through the dryer body 13 for drying, the dried sludge is discharged from the discharge cover mounting cylinder 4 through the discharge channel 11 into the material receiving mechanism 12, and the heat flow in the dryer body 13 is discharged through the exhaust pipe 9 and then enters the circulation pipeline, and the exhausted gas is filtered by the filter screen 8, the discharge cover side sealing plate 5 is fixed to the exhaust pipe 9 through the connecting cylinder 7, and the sealing ring 10 is used for sealing connection. The fixed ring plate 2 is fixed to the discharge cover mounting cylinder 4, and the sealing device body 1 is dust-proof. During the rotation of the drying cylinder of the dryer body 13, the sealing device body 1 is sealed by the rubber seal. The flexible sealing structure composed of the ring 3 and the sealing filler 21 and the hard sealing structure composed of the sealing outer ring 18 and the sealing inner ring 20 are sealed, and the ball 19 makes the sealing structures rotate relative to each other to realize the rotation sealing. At the same time, the air pump 15 passes the filtered compressed gas into the connecting pipe 17 through the air inlet pipe 14, and then sends it into the air guide ring pipe 6, and finally sprays it into the gap between the discharge hood mounting cylinder 4 and the dryer body 13 through the air outlet nozzle 22 to prevent dust-containing gas from entering the gap between the discharge hood mounting cylinder 4 and the dryer body 13 to prevent rotation jamming, and the sealing structure is dust-proof protected. The support frame 16 makes the discharge hood mounting cylinder 4 structure stable, thereby completing a series of tasks.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dryer with a discharge hood sealing device, comprising a sealing device body (1) and a dryer body (13), wherein a discharge hood mounting cylinder (4) is provided at the end of the dryer body (13), and the sealing device body (1) is arranged on the discharge hood mounting cylinder (4), characterized in that: The sealing device body (1) is provided with a coaxial rubber sealing ring (3), a sealing outer ring (18) and a sealing inner ring (20) in sequence from the outside to the inside, and the rubber sealing ring (3) is filled with sealing filler (21). The two ends of the discharge hood mounting cylinder (4) are provided with a fixed ring plate (2) and a discharge hood side sealing plate (5), respectively, and the fixed ring plate (2) is sleeved on the drying cylinder of the dryer body (13), so that the sealing device body (1) is positioned by the fixed ring plate (2) and the discharge hood mounting cylinder (4). The rubber sealing ring (3) is provided with an air guide ring tube (6) on a side away from the fixed ring plate (2), and the air guide ring tube (6) is provided with inclined air outlet nozzles (22) at even intervals on a side away from the rubber sealing ring (3), so that the air outlet nozzles (22) face the gap between the discharge hood mounting cylinder (4) and the dryer body (13).

2. A drying machine with a discharge cover sealing device according to claim 1, characterized in that: A support frame (16) is welded and fixed to the lower end of the discharge cover mounting cylinder (4), and an air pump (15) is bolted to the support frame (16); an air outlet end of the air pump (15) is connected to an air inlet pipe (14), and the air inlet pipe (14) is connected to the bottom of the fixed ring plate (2) via a clamp.

3. A drying machine with a discharge cover sealing device according to claim 2, characterized in that: The other end of the air intake pipe (14) is fixed with a connecting pipe (17) via a pipe fitting, and the connecting pipe (17) penetrates the rubber sealing ring (3), and the other end of the connecting pipe (17) is sealed and plugged with the air guide ring pipe (6).

4. A drying machine with a discharge cover sealing device according to claim 1, characterized in that: The size of the discharge cover mounting cylinder (4) is larger than the size of the drying cylinder of the dryer body (13), a discharge channel (11) is welded to the bottom of the discharge cover mounting cylinder (4), and a material receiving mechanism (12) is placed below the discharge channel (11).

5. A drying machine with a discharge cover sealing device according to claim 1, characterized in that: The discharge hood side sealing plate (5) is of a conical structure, and a connecting cylinder (7) is welded to the outside of the discharge hood side sealing plate (5), and an exhaust pipe (9) is fixed to the other end of the connecting cylinder (7) via a flange structure, a sealing ring (10) is provided between the connecting cylinder (7) and the exhaust pipe (9), and a filter screen cover (8) of a conical structure is clamped and fastened inside the connecting cylinder (7).

6. A drying machine with a discharge cover sealing device according to claim 1, characterized in that: The sealing outer ring (18) is made of U-shaped steel, and is rotatably engaged with the sealing inner ring (20). Ball bearings (19) are evenly spaced and engaged with the outer side of the sealing inner ring (20), and the ball bearings (19) are in contact with the sealing outer ring (18).

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