Sludge dewatering equipment heat energy circulation structure with waste heat recovery function

Abstract

The utility model relates to the technical field of sludge dewatering equipment, and discloses a sludge dewatering equipment heat energy circulation structure with a waste heat recovery function, which adopts a heat plate conduction type heat exchange structure and is arranged at the lower part of the inner side of a dewatering box seat of a dewatering machine body; heat in the water liquid can be efficiently conducted through the auxiliary heat conduction plate while flow guiding is conducted on the separated water liquid, heat is guided, conveyed and stored through the heat conduction plate structure, heat exchange recovery of the heat can be efficiently completed through cooperation of the heat exchange bent pipe arranged in the interlayer of the heat conduction plate and circulating water liquid flowing, and the heat exchange efficiency is improved. The auxiliary heat conducting plate is of a split type installation structure, disassembly and assembly operation is convenient, later cleaning and maintenance of the device are facilitated, heat exchange fins are arranged on the upper portion of the auxiliary heat conducting plate, the distribution direction of the heat exchange fins is the same as the flowing direction of water, the heat conducting contact area between the auxiliary heat conducting plate and the water can be increased while directional flow guiding is conducted on the water, and heat exchange efficiency is improved. Efficient conduction and recovery of heat in sewage can be achieved, and the heat recovery efficiency of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge dewatering equipment, specifically to a thermal energy circulation structure for sludge dewatering equipment with waste heat recovery. Background Technology

[0002] In daily life and industrial production, a large amount of wastewater is generated. When wastewater is treated in an environmentally friendly manner, a large amount of sludge will accumulate. For example, sedimentation tanks and biological treatment tanks in wastewater treatment systems will accumulate a large amount of sludge. Even after concentration and digestion treatment, the water content is still very high, generally 97%-99%. When treating sludge, it is often necessary to pre-treat the sludge by dewatering in order to reduce the water content of the sludge.

[0003] Before sludge dewatering, in order to decompose harmful substances and bacteria in sewage, it is often necessary to heat and hydrolyze the sludge-containing sewage. During sludge dewatering, a large amount of residual heat will remain in the sludge. After dewatering, the residual heat will be lost with the waste liquid and cannot be effectively recovered and utilized, resulting in a waste of thermal energy. Therefore, a thermal energy circulation structure for sludge dewatering equipment with residual heat recovery is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a thermal energy circulation structure for sludge dewatering equipment with waste heat recovery, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermal energy circulation structure for sludge dewatering equipment with waste heat recovery, including a heat exchange mechanism for recovering working waste heat inside the dewatering machine body, a dewatering tank seat is provided on the upper part of the dewatering machine body, and the heat exchange mechanism is installed inside the dewatering tank seat;

[0006] The heat exchange mechanism includes a heat-conducting top plate, a heat-conducting bottom plate, a heat exchange bend, and an auxiliary heat-conducting plate. The heat-conducting bottom plate is fixedly installed on the lower inner side of the dehydration tank base. The heat exchange bend is embedded between the heat-conducting top plate and the heat-conducting bottom plate. The auxiliary heat-conducting plate is detachably installed on the upper part of the heat-conducting top plate, and heat exchange fins are provided on the upper part of the auxiliary heat-conducting plate.

[0007] Preferably, a drive motor is provided on the side of the dewatering tank base, and a conical screen cylinder is provided inside the dewatering tank base. A spiral worm gear is installed inside the conical screen cylinder through the drive motor.

[0008] Preferably, the rear of the aforementioned dehydration tank is provided with a pair of push cylinders, and the push rod end of the push cylinder is equipped with a sealing plate seat.

[0009] Preferably, the aforementioned heat-conducting base plate is fixedly installed on the inner bottom of the dehydration tank seat by bolts, and the heat-conducting top plate is fixedly installed on the upper part of the heat-conducting base plate by bolts.

[0010] Preferably, the heat exchange bend is continuously bent, and the joint surfaces of the heat-conducting top plate and the heat-conducting bottom plate are provided with bend mounting grooves. The heat exchange bend is fixedly embedded in the inner side of the bend mounting groove, and the two ends of the heat exchange bend are respectively provided with liquid inlet and liquid outlet.

[0011] Preferably, the upper center of the above-mentioned heat-conducting top plate is provided with a plate base mounting groove, and the auxiliary heat-conducting plate is fitted into the inner side of the plate base mounting groove. The auxiliary heat-conducting plate is fixedly installed to the heat-conducting top plate by bolts.

[0012] Preferably, the heat exchange fins are evenly and uniformly fixed on the upper part of the auxiliary heat-conducting plate at equal intervals. The top heat-conducting plate, the bottom heat-conducting plate, and the auxiliary heat-conducting plate are all provided with drainage openings through the middle, and the drainage openings are connected to the drainage pipe at the bottom of the dehydration tank.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This thermal energy circulation structure adopts a heat exchange structure with a heat plate conduction. The thermal energy circulation structure is located on the lower inner side of the dewatering tank of the dewatering machine. While guiding the flow of the separated water, the auxiliary heat conduction plate can efficiently conduct heat in the water. The heat is conducted and stored through the heat conduction plate structure. The heat exchange bend set between the heat conduction plate layers, in conjunction with the circulating water flow, can efficiently complete heat exchange and recovery. The auxiliary heat conduction plate adopts a split installation structure, which is convenient for disassembly and assembly, and facilitates the later cleaning and maintenance of the device. Heat exchange fins are set on the upper part. The distribution direction of the heat exchange fins is the same as that of the water flow direction. While guiding the water flow in a directional manner, it can increase the heat conduction contact area between itself and the water, which can realize the efficient conduction and recovery of heat in the wastewater, and improve the heat recovery efficiency of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0016] Figure 1 This is a three-dimensional structural diagram of the front side of the installation of the present invention and the dehydrator body;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention and the dehydrator body after installation;

[0018] Figure 3This is a three-dimensional structural diagram of the heat exchange mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the upper structure of the heat exchange mechanism of this utility model after disassembly.

[0020] Figure 5 This is a schematic diagram of the lower structure of the heat exchange mechanism of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Heat-conducting top plate; 2. Heat-conducting bottom plate; 3. Heat exchange bend; 4. Auxiliary heat-conducting plate; 5. Plate seat mounting groove; 6. Heat exchange fins; 7. Drainage opening; 8. Drive motor; 9. Conical screen cylinder; 10. Push cylinder. Detailed Implementation

[0022] 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.

[0023] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0024] Example

[0025] Please see Figure 1-5 This utility model provides a technical solution: a thermal energy circulation structure for a sludge dewatering device with waste heat recovery, including a heat exchange mechanism for recovering working waste heat within the dewatering machine body. The dewatering machine body is a worm gear type dewatering device, as shown in the attached figure. Figure 1As shown, a dewatering tank is provided on the upper part of the dewatering machine body. The dewatering tank is a relatively closed tank structure. To facilitate sludge feeding, a feed inlet is provided on the upper part of the dewatering tank. A drive motor 8 is provided on the side of the dewatering tank. A conical screen cylinder 9 is provided inside the dewatering tank. A spiral worm gear is installed inside the conical screen cylinder 9 through the drive motor 8. During operation, the drive motor 8 drives the spiral worm gear to complete the directional conveying of sludge material. To facilitate the control of the closure of the conical screen cylinder 9, a pair of push cylinders 10 are provided at the rear of the dewatering tank. A sealing disc is installed at the push rod end of the push cylinder 10. During dewatering, the sealing disc can be used to seal the port of the conical screen cylinder 9, and the sludge discharge can be controlled.

[0026] The heat exchange mechanism is installed inside the dehydration tank base. The heat exchange mechanism includes a heat-conducting top plate 1, a heat-conducting bottom plate 2, a heat exchange bend 3, and an auxiliary heat-conducting plate 4. Both the heat-conducting top plate 1 and the heat-conducting bottom plate 2 can be made of copper. (See attached...) Figure 2 As shown, the heat-conducting base plate 2 is fixedly installed to the inner bottom of the dehydration tank base with bolts, and the heat-conducting top plate 1 is fixedly installed to the upper part of the heat-conducting base plate 2 with bolts. The heat exchange elbow 3 is a copper elbow, as shown in the attached figure. Figure 4 As shown, the heat exchange bend 3 is continuously bent. To facilitate the connection and installation of the heat exchange bend 3, bend mounting grooves are provided on the joint surfaces of the heat-conducting top plate 1 and the heat-conducting bottom plate 2. The heat exchange bend 3 is fixedly embedded in the inner side of the bend mounting groove. By utilizing the heat exchange bend 3 set between the heat-conducting plate layers in conjunction with the circulating water flow, heat exchange and recovery can be efficiently completed. To facilitate the circulation of cold water, inlet and outlet are respectively provided at both ends of the heat exchange bend 3. Through circulating heat exchange, cold water can be heated for use as production water in the plant area.

[0027] The auxiliary heat-conducting plate 4 is made of aluminum and can be detachably installed on the upper part of the heat-conducting top plate 1, as detailed in the attached document. Figure 4As shown, to facilitate the connection and installation of the auxiliary heat-conducting plate 4, a plate base mounting groove 5 is provided in the upper middle part of the heat-conducting top plate 1. The auxiliary heat-conducting plate 4 is fitted into the inner side of the plate base mounting groove 5 and fixed to the heat-conducting top plate 1 by bolts. To improve the heat conduction efficiency, heat exchange fins 6 are provided on the upper part of the auxiliary heat-conducting plate 4. The heat exchange fins 6 are evenly fixed on the upper part of the auxiliary heat-conducting plate 4 at equal intervals, adopting a heat exchange structure of heat plate conduction. The heat energy circulation structure is set in the lower inner part of the dehydration box seat of the dehydrator body. The auxiliary heat-conducting plate 4 is a split type. The installation structure is convenient for disassembly and assembly, facilitating later cleaning and maintenance of the device. Heat exchange fins 6 are installed on the upper part, with their distribution direction aligned with the water flow direction. This not only directs the water flow but also increases the thermal contact area between the fins and the water, enabling efficient heat transfer and recovery from the wastewater and improving the device's heat recovery efficiency. To facilitate the discharge of separated wastewater, drain openings 7 are provided through the middle of the heat-conducting top plate 1, heat-conducting bottom plate 2, and auxiliary heat-conducting plate 4. These drain openings 7 are connected to the drain pipe at the bottom of the dewatering tank.

[0028] Working principle or structural principle: During operation, sludge is fed into the upper part of the dewatering tank. Simultaneously, driven by the drive motor 8, the worm gear rotates at a constant speed inside the conical screen cylinder 9. At this time, the conical screen cylinder 9 is in a closed state under the pushing force of the pushing cylinder 10. The sludge entering the conical screen cylinder 9 is squeezed towards the constricted part at the rear of the conical screen cylinder 9 by the rotation of the worm gear. During the movement, the sludge is efficiently squeezed by the narrowing of the inner cavity, causing the water in the sludge to separate and flow out from the filter holes on the periphery of the conical screen cylinder 9. The flowing water... The liquid flows through the heat exchange fins 6 above the auxiliary heat-conducting plate 4. During the process, the heat in the liquid is conducted and stored to the heat-conducting plate side through the heat exchange fins 6. At the same time, cold water enters through one end of the heat exchange bend 3 and circulates within the heat exchange bend 3. The cold water exchanges and recovers the heat in the heat-conducting plate. The drain port of the dewatering machine opens periodically, allowing the liquid after heat exchange to be discharged and recovered through the drain opening 7. Then, the push cylinder 10 moves backward, causing the rear of the conical screen cylinder 9 to open, discharging the sludge and completing the treatment.

[0029] In summary, this thermal energy circulation structure adopts a heat exchange structure with a heat plate conduction. The thermal energy circulation structure is located on the lower inner side of the dehydration tank of the dehydrator. While guiding the flow of the separated water, the auxiliary heat-conducting plate 4 can efficiently conduct heat in the water and store it through the heat-conducting plate structure. The heat exchange bend 3 set between the heat-conducting plate layers, in conjunction with the circulating water flow, can efficiently complete heat exchange and recovery. Furthermore, the auxiliary heat-conducting plate 4 adopts a split installation structure, which is convenient for disassembly and assembly, and facilitates the later cleaning and maintenance of the device. Heat exchange fins 6 are set on the upper part. The distribution direction of the heat exchange fins 6 is the same as that of the water flow direction. While guiding the water flow in a directional manner, it can increase the heat conduction contact area between itself and the water, which can realize the efficient conduction and recovery of heat in the wastewater and improve the heat recovery efficiency of the device.

[0030] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A sludge dewatering equipment with waste heat recovery thermal energy circulation structure, including a heat exchange mechanism for recovering working waste heat within the dewatering machine, characterized in that: The upper part of the dehydration machine body is provided with a dehydration tank base, and the heat exchange mechanism is installed inside the dehydration tank base; The heat exchange mechanism includes a heat-conducting top plate (1), a heat-conducting bottom plate (2), a heat exchange bend (3), and an auxiliary heat-conducting plate (4). The heat-conducting bottom plate (2) is fixedly installed on the lower inner side of the dehydration tank seat. The heat exchange bend (3) is embedded between the heat-conducting top plate (1) and the heat-conducting bottom plate (2). The auxiliary heat-conducting plate (4) is detachably installed on the upper part of the heat-conducting top plate (1). The upper part of the auxiliary heat-conducting plate (4) is provided with heat exchange fins (6).

2. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 1, characterized in that: A drive motor (8) is provided on the side of the dehydration tank base, and a conical screen cylinder (9) is provided inside the dehydration tank base. A spiral worm gear is installed inside the conical screen cylinder (9) through the drive motor (8).

3. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 2, characterized in that: The rear part of the dehydration tank is provided with a pair of push cylinders (10), and the push rod end of the push cylinder (10) is equipped with a sealing plate seat.

4. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 3, characterized in that: The heat-conducting base plate (2) is fixedly installed on the inner bottom of the dehydration tank seat by bolts, and the heat-conducting top plate (1) is fixedly installed on the upper part of the heat-conducting base plate (2) by bolts.

5. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 4, characterized in that: The heat exchange bend (3) is continuously bent. The heat-conducting top plate (1) and the heat-conducting bottom plate (2) are both provided with bend installation grooves. The heat exchange bend (3) is fixedly embedded in the inner side of the bend installation groove. The two ends of the heat exchange bend (3) are respectively provided with liquid inlet and liquid outlet.

6. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 5, characterized in that: The upper middle part of the heat-conducting top plate (1) is provided with a plate base mounting groove (5), and the auxiliary heat-conducting plate (4) is fitted and installed inside the plate base mounting groove (5). The auxiliary heat-conducting plate (4) is fixedly installed to the heat-conducting top plate (1) by bolts.

7. The thermal energy circulation structure of the sludge dewatering equipment with waste heat recovery according to claim 6, characterized in that: The heat exchange fins (6) are evenly and uniformly fixed on the upper part of the auxiliary heat-conducting plate (4) at equal intervals. The heat-conducting top plate (1), the heat-conducting bottom plate (2) and the auxiliary heat-conducting plate (4) are all provided with a drain opening (7) through the middle. The drain opening (7) is connected to the drain pipe at the bottom of the dehydration tank seat.

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