Sludge dewatering device for sewage treatment

Abstract

The utility model discloses a sludge dewatering device for sewage treatment, which belongs to the technical field of sludge dewatering devices and comprises a main body, a sludge dewatering cavity is arranged in the main body, the bottom end of the main body is connected with a bottom sealing frame, the sludge dewatering cavity comprises a cavity body, and a rotating shaft frame is arranged at the middle end of the cavity body. Extrusion plates are connected to the periphery of the rotating shaft frame, permeation holes are formed in the extrusion plates, and water flowing grooves are formed in the bottom ends of the permeation holes. According to the sludge dewatering device, the rotating shaft frame is combined with the extrusion plates on the periphery, the dewatering process is formed by extruding the pressed tables on the periphery, each set of extrusion plates are each of an arc-shaped structure, and the sludge can be gradually extruded and ground by attaching the extrusion plates to the cambered surfaces of the pressed tables, so that water in the sludge is more easily extruded and dewatered, and the sludge dewatering efficiency is improved. Sewage generated by extrusion can be drained to the bottom of the device to be drained through cooperation of permeation holes and water flowing grooves formed in the extrusion plates, the efficiency is high, and the drying quality is thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage sludge dewatering devices, in particular to a sludge dewatering device used for sewage treatment. Background Art

[0002] Sewage mostly refers to wastewater generated by daily life or production and processing. Because it is polluted and no longer has its previous efficacy, and it is rich in organic matter, garbage, and sludge, it needs to be treated in batches before it can be discharged. Too much sludge can easily cause pipe blockage. Domestic waste and industrial waste are mixed with a large amount of sewage sludge. Since the sludge needs to be dehydrated before discharge and treatment, so that the sludge can be better buried, additional dehydration treatment should be carried out. Most of the existing sewage processing equipment directly dries and heats the sludge or dehydrates the sewage by extrusion.

[0003] When existing sewage processing equipment is performing sludge dewatering operations, if the sludge is dehydrated by extrusion, there will still be residual moisture in the sludge blocks that are not completely squeezed out, so the efficiency is low and the dehydration effect is not thorough. If drying is used, the sewage will be completely evaporated, which is not conducive to subsequent utilization. For this reason, we propose a sludge dehydration device for sewage treatment. Utility Model Content

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] The purpose of the utility model is to provide a sludge dewatering device for sewage treatment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sludge dewatering device for sewage treatment, comprising a main body, a sludge dewatering chamber is arranged inside the main body, and the bottom end of the main body is connected to a bottom sealing frame, the sludge dewatering chamber comprises a cavity, and a rotating shaft frame is arranged at the middle end of the cavity, an extrusion plate is connected around the rotating shaft frame, and a penetration hole is opened inside the extrusion plate, a water flow trough is opened at the bottom end of the penetration hole, and pressure platforms are distributed around the inner walls of the cavity.

[0007] Furthermore, the pressure platforms are distributed in a ring shape along the inner walls around the cavity, and the number of the pressure platforms is aligned with the number of the extrusion plates.

[0008] Furthermore, the extrusion plate forms a rotating structure with the cavity through a rotating shaft frame, and the penetration holes are opened at equal intervals along the periphery of the extrusion plate.

[0009] Furthermore, the main body includes an outer frame, and brackets are distributed around the bottom end of the outer frame, the top end of the outer frame is connected to a top frame, and the middle end of the top frame is connected to a motor, and the bottom end of the motor is connected to the rotating shaft frame.

[0010] Furthermore, the outer frame is fixed to the bracket and the top frame by welding.

[0011] Furthermore, the bottom sealing frame includes a cylinder, and the bottom end of the cylinder is connected to a chassis, the top surface of the chassis is fitted with grooves around, and a filter opening is opened at the middle end of the chassis.

[0012] Furthermore, the chassis forms a telescopic structure with the main body through the cylinder, and the clamping groove is opened in a ring shape along the top surface of the chassis.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The sludge dewatering device is composed of a rotating shaft frame and extrusion plates on all sides, and the dehydration process is formed by squeezing the pressure platforms on all sides. Each set of extrusion plates is an arc-shaped structure, and the extrusion plates and the arc surfaces of the pressure platforms are fitted together to form a gradual extrusion and grinding of the sludge, so that the moisture inside the sludge can be squeezed out and dehydrated more easily. The infiltration holes and water troughs opened inside the extrusion plates can be used to drain the sewage generated by the extrusion to the bottom of the device for discharge, which is efficient and has a thorough dehydration quality.

[0015] The sludge dewatering device is mainly composed of an outer frame, and the brackets welded around the bottom of the outer frame are used as the base for stable placement. The top of the device provides a rotating drive force for the rotating shaft frame through the top frame and the motor, so as to keep the sludge stable and squeezed to dry.

[0016] The bottom of the outer frame of this equipment is closed by the chassis and the card slot to maintain the sealing of the bottom of the equipment. The chassis can discharge the sewage in the drying operation through the middle filter port. After the drying is completed, the chassis can be opened by telescoping the cylinder to clear the sludge inside after drying, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the sludge dewatering chamber of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the extrusion plate in the sludge dewatering chamber of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the bottom sealing frame of the utility model.

[0021] In the figure: 1. main body; 101. outer frame; 102. bracket; 103. top frame; 104. motor; 2. sludge dewatering chamber; 201. chamber; 202. rotating shaft frame; 203. extrusion plate; 204. penetration hole; 205. water flow trough; 206. pressure platform; 3. bottom frame; 301. cylinder; 302. chassis; 303. slot; 304. filter screen port. DETAILED DESCRIPTION

[0022] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0023] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0027] The utility model provides Figure 1-4 A sludge dewatering device for sewage treatment shown in the figure comprises a main body 1, a sludge dewatering chamber 2 is arranged inside the main body 1, and a bottom sealing frame 3 is connected to the bottom end of the main body 1, the main body 1 comprises an outer frame 101, and brackets 102 are distributed around the bottom end of the outer frame 101, the top end of the outer frame 101 is connected to a top frame 103, and a motor 104 is connected to the middle end of the top frame 103, and the bottom end of the motor 104 is connected to the rotating shaft frame 202;

[0028] In order to improve the structural stability of the sludge dewatering device during use, Figure 1As shown, the sludge dewatering device is composed of an outer frame 101 as the main body, and a bracket 102 welded around the bottom of the outer frame 101 is used as a base for stable placement, while the top end provides a rotational driving force for the rotating shaft frame 202 through a top frame 103 and a motor 104, thereby maintaining stable squeezing and dehydration of the sludge.

[0029] like Figure 2-3 As shown, the sludge dewatering chamber 2 includes a chamber 201, and a rotating shaft frame 202 is provided at the middle end of the chamber 201, and a squeezing plate 203 is connected to the periphery of the rotating shaft frame 202, and a permeation hole 204 is provided inside the squeezing plate 203, and a water flow trough 205 is provided at the bottom end of the permeation hole 204, and pressure platforms 206 are distributed on the inner walls around the chamber 201;

[0030] In order to improve the de-drying efficiency and quality, Figure 2-3 As shown, this sludge dewatering device is composed of a rotating shaft frame 202 and extrusion plates 203 on all sides, and a dehydration process is formed by squeezing the pressure platforms 206 on all sides. Each group of extrusion plates 203 is an arc-shaped structure, and the arc surface of the extrusion plates 203 and the pressure platforms 206 fit together to form a gradual extrusion and grinding of the sludge, so that the moisture inside the sludge can be squeezed out and dried more easily. The infiltration holes 204 and the water flow troughs 205 opened inside the extrusion plates 203 can drain the sewage generated by the extrusion to the bottom of the device for discharge, which has high efficiency and thorough dehydration quality.

[0031] like Figure 4 As shown, the bottom sealing frame 3 includes a cylinder 301, and the bottom end of the cylinder 301 is connected to a bottom plate 302, the top surface of the bottom plate 302 is fitted with a card slot 303 around, and the middle end of the bottom plate 302 is provided with a filter opening 304;

[0032] Finally, in order to facilitate the discharge of sewage and sludge after drying, Figure 4 As shown, the bottom end of the outer frame 101 of the device is closed by the chassis 302 and the card slot 303 to maintain the sealing of the bottom of the device, and the chassis 302 can discharge the sewage in the drying operation through the middle filter port 304. After the drying is completed, the chassis 302 can be opened by extending and retracting the cylinder 301 to clear the sludge inside after drying, which is convenient and quick.

[0033] In summary, when the environmentally friendly sludge dewatering device is in use, the user can pour the sludge to be processed into the outer frame 101, and then turn on the motor 104 to drive, and the motor 104 drives the bottom end connected to the rotating shaft frame 202 to rotate synchronously. At this time, the extrusion plates 203 around the rotating shaft frame 202 rotate and push the sludge around. When the sludge is pushed to one side of the pressure platform 206, the sludge is in the arc surface of the pressure platform 206 and the arc surface of the extrusion plate 203. As the extrusion plate 203 rotates and the arc surface of the pressure platform 206 gradually fits, synchronous grinding of both sides of the sludge is formed, so that every part of the sludge is evenly stressed, thereby maximizing the dehydration. A part of the extruded sludge is squeezed out along the penetration hole 204 in the extrusion plate 203, and the generated sewage penetrates downward along the water trough 205 and is discharged through the bottom filter screen port 304. After dehydration is completed, the cylinder 301 is started again to open the closed chassis 302, and the sludge can be taken out.

[0034] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A sludge dewatering device for sewage treatment, comprising a main body (1), characterized in that: A sludge dewatering chamber (2) is arranged inside the main body (1), and a bottom sealing frame (3) is connected to the bottom end of the main body (1), the sludge dewatering chamber (2) comprises a chamber (201), and a rotating shaft frame (202) is arranged at the middle end of the chamber (201), an extrusion plate (203) is connected to the four sides of the rotating shaft frame (202), and a penetration hole (204) is provided inside the extrusion plate (203), a water flow trough (205) is provided at the bottom end of the penetration hole (204), and pressure platforms (206) are distributed on the four inner walls of the chamber (201).

2. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The pressure platforms (206) are distributed in a ring shape along the inner walls around the cavity (201), and the number of the pressure platforms (206) is aligned with the number of the extrusion plates (203).

3. The sludge dewatering device for sewage treatment according to claim 1, characterized in that: The extrusion plate (203) forms a rotating structure with the cavity (201) through the rotating shaft frame (202), and the penetration holes (204) are opened at equal intervals along the periphery of the extrusion plate (203).

4. A sludge dewatering device for sewage treatment according to claim 1, characterized in that: The main body (1) comprises an outer frame (101), and brackets (102) are distributed around the bottom end of the outer frame (101), the top end of the outer frame (101) is connected to a top frame (103), and the middle end of the top frame (103) is connected to a motor (104), and the bottom end of the motor (104) is connected to a rotating shaft frame (202).

5. A sludge dewatering device for sewage treatment according to claim 4, characterized in that: The outer frame (101) is fixed to the bracket (102) and the top frame (103) by welding.

6. The sludge dewatering device for sewage treatment according to claim 1, characterized in that: The bottom sealing frame (3) comprises a cylinder (301), and the bottom end of the cylinder (301) is connected to a bottom plate (302), the top surface of the bottom plate (302) is fitted with slots (303) around the periphery, and a filter opening (304) is provided at the middle end of the bottom plate (302).

7. A sludge dewatering device for sewage treatment according to claim 6, characterized in that: The chassis (302) forms a telescopic structure with the main body (1) through the cylinder (301), and the clamping groove (303) is opened in a ring shape along the top surface of the chassis (302).

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