Sludge drying device utilizing low-temperature waste heat

Abstract

The utility model relates to the technical field of sludge treatment, in particular to a sludge drying device utilizing low-temperature waste heat, which can utilize heat in discharged sludge and improve the utilization rate of heat energy, and comprises a sludge drying machine and a conveyor, the conveyor penetrates through the interior of the sludge drying machine from a feeding port and a discharging port and extends towards the two ends, an air inlet cover is arranged above one end of the conveyor, an air exhaust cover is arranged above the other end of the conveyor, the air exhaust cover is located in front of the feeding port of the sludge drying machine, and the air inlet cover is located behind the discharging port of the sludge drying machine. The two sides of the air inlet cover and the exhaust cover and the conveyor are supported through supporting columns, an air inlet pipe is arranged on the air inlet cover, an exhaust pipe is arranged on the exhaust cover, a fan is arranged between the air inlet pipe and the exhaust pipe, a cross beam is arranged between the corresponding supporting columns on the two sides, a plurality of connecting rods are arranged at the bottom of the cross beam, and a check block is arranged at the bottom of each connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge drying device utilizing low-temperature waste heat. Background Art

[0002] As we all know, in recent years, while my country's economy has been developing rapidly, the environment has also suffered increasingly significant damage. The management of the disposal of "three wastes" has always been the top priority of environmental protection management. The disposal management of wastewater, waste gas and waste residue is gradually changing towards rationalization, standardization and scientification. Among them, the disposal of residual sludge in sewage treatment plants is a prominent problem facing the current environmental protection management. All sewage treatment plants are faced with the problem of how to dispose of the large amount of residual sludge generated every day. Due to the large amount of residual sludge generated, the difficulty of transfer and disposal, and the high cost of disposal, it is the focus of the work of enterprises and environmental protection departments at all levels.

[0003] Sludge drying is done by filtration or evaporation. Sludge is dried by sludge drying equipment. After the sludge is discharged, there is still low-temperature heat in the sludge, which will cause heat waste and is not conducive to environmental protection. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a sludge drying device which utilizes low-temperature waste heat, which can utilize the heat in the discharged sludge and improve the utilization rate of thermal energy.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge drying device utilizing low-temperature waste heat, comprising a sludge dryer and a conveyor, wherein a feed port and a discharge port are respectively arranged at both ends of the sludge dryer, and the conveyor passes through the interior of the sludge dryer from the feed port and the discharge port and extends to both ends, an air inlet hood is arranged above one end of the conveyor, and an exhaust hood is arranged above the other end of the conveyor, the exhaust hood is located in front of the feed port of the sludge dryer, and the air inlet hood is located behind the discharge port of the sludge dryer, the air inlet hood, the two sides of the air inlet hood and the conveyor are supported by support columns, an air inlet pipe is arranged on the air inlet hood, an exhaust pipe is arranged on the exhaust hood, and a fan is arranged between the air inlet pipe and the exhaust pipe.

[0008] Furthermore, a crossbeam is arranged between the corresponding support columns on both sides, a plurality of connecting rods are arranged at the bottom of the crossbeam, and a stopper is arranged at the bottom of each connecting rod.

[0009] Furthermore, the front portion of the stopper is pointed, and the width of the stopper gradually increases from front to back.

[0010] Furthermore, the stoppers located on the front and rear different cross beams are arranged in a staggered manner.

[0011] Furthermore, soft curtains are hung at the feed inlet and the discharge outlet of the sludge dryer.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a sludge drying device utilizing low-temperature waste heat, which has the following beneficial effects:

[0014] The sludge drying device utilizing low-temperature waste heat is provided with an air inlet hood, an exhaust hood, an air inlet pipe, an exhaust pipe and a fan. When the fan is operated, air enters from the air inlet hood and is discharged from the exhaust hood. During the air flow, the heat in the dried sludge is transported to the undried sludge, and the undried sludge is preliminarily heated and dried, so that the heat in the discharged sludge can be utilized, thereby improving the utilization rate of thermal energy and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the air inlet cover of the utility model;

[0017] Figure 3 This is a front view structural diagram of the air inlet cover of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the air inlet cover of the utility model when viewed from above.

[0019] In the figure: 1. sludge dryer; 2. conveyor; 3. support column; 4. air inlet hood; 5. exhaust hood; 6. air inlet pipe; 7. exhaust pipe; 8. fan; 9. crossbeam; 10. connecting rod; 11. block; 12. soft curtain. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4The utility model is a sludge drying device using low-temperature waste heat, comprising a sludge dryer 1 and a conveyor 2. The two ends of the sludge dryer 1 are respectively provided with a feed port and a discharge port. The conveyor 2 passes through the interior of the sludge dryer 1 from the feed port and the discharge port and extends to both ends. An air inlet hood 4 is provided above one end of the conveyor 2, and an air exhaust hood 5 is provided above the other end of the conveyor 2. The air exhaust hood 5 is located in front of the feed port of the sludge dryer 1, and the air inlet hood 4 is located behind the discharge port of the sludge dryer 1. The air inlet hood 4 and the exhaust hood 5 are supported on both sides and the conveyor 2 by support columns 3. An air inlet pipe 6 is arranged on the air inlet hood 4, and an exhaust pipe 7 is arranged on the exhaust hood 5. A fan 8 is arranged between the air inlet pipe 6 and the exhaust pipe 7. The fan 8 plays a role in conveying air. When the fan 8 works, the air enters from the air inlet hood 4 and is discharged from the exhaust hood 5. During the air flow, the heat in the dried sludge will be transported to the undried sludge, so that the undried sludge is preliminarily heated and dried.

[0022] A crossbeam 9 is arranged between the corresponding support columns 3 on both sides, a plurality of connecting rods 10 are arranged at the bottom of the crossbeam 9 , and a stopper 11 is arranged at the bottom of each connecting rod 10 .

[0023] The front portion of the stopper 11 is pointed, and the width of the stopper 11 gradually increases from the front to the back.

[0024] The blocks 11 on the front and rear different cross beams 9 are arranged in a staggered manner, and the blocks 11 turn over the sludge to increase the contact area between the sludge and the air.

[0025] Among them, soft curtains 12 are hung and installed at the feed inlet and the discharge outlet of the sludge dryer 1 to prevent the heat loss inside the sludge dryer.

[0026] To sum up, in this sludge drying device utilizing low-temperature waste heat, when in use, the sludge is conveyed through the conveyor 2, the sludge is dried when passing through the sludge dryer 1, and when the sludge passes through the block 11, the block 11 turns over the sludge to increase the contact area between the sludge and the air, and when the sludge passes under the air inlet hood 4 and the exhaust hood 5, the fan 8 works to allow air to enter from the air inlet hood 4 and be discharged from the exhaust hood 5. During the air flow, the heat in the dried sludge will be transported to the undried sludge, and the undried sludge will be preliminarily heated and dried.

[0027] The technical terms or scientific terms used in the description of this application should be the common meanings understood by ordinary technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance.

[0028] The words "one", "an" or "the" and the like used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The words "include" or "comprise" and the like used in the description of this application mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge drying device utilizing low-temperature waste heat, comprising a sludge dryer (1) and a conveyor (2), wherein the sludge dryer (1) is provided with a feed inlet and a discharge outlet at both ends, respectively, and the conveyor (2) passes through the interior of the sludge dryer (1) from the feed inlet and the discharge outlet and extends toward both ends, characterized in that: An air inlet hood (4) is arranged above one end of the conveyor (2), and an air exhaust hood (5) is arranged above the other end of the conveyor (2). The air exhaust hood (5) is located in front of the feed port of the sludge dryer (1), and the air inlet hood (4) is located behind the discharge port of the sludge dryer (1). The air inlet hood (4), the exhaust hood (5) and the conveyor (2) are supported by support columns (3). An air inlet pipe (6) is arranged on the air inlet hood (4), and an exhaust pipe (7) is arranged on the exhaust hood (5). A fan (8) is arranged between the air inlet pipe (6) and the exhaust pipe (7).

2. The sludge drying device using low-temperature waste heat according to claim 1, characterized in that: A crossbeam (9) is arranged between the corresponding support columns (3) on both sides, a plurality of connecting rods (10) are arranged at the bottom of the crossbeam (9), and a stopper (11) is arranged at the bottom of each connecting rod (10).

3. The sludge drying device using low-temperature waste heat according to claim 2 is characterized in that: The front part of the stopper (11) is arranged in a pointed shape, and the width of the stopper (11) gradually increases from front to back.

4. The sludge drying device using low-temperature waste heat according to claim 2, characterized in that: The stoppers (11) located on the front and rear different cross beams (9) are arranged in a staggered manner.

5. The sludge drying device using low-temperature waste heat according to claim 1, characterized in that: Soft curtains (12) are hung and installed at the feed inlet and the discharge outlet of the sludge dryer (1).

Images