Sludge steam drying mixing drum structure

Abstract

According to the sludge steam drying mixing drum structure, a mixing drum comprises a drum bottom part and a plurality of drum wall parts, the drum wall parts are encircled and are detachably welded and fixed with the drum bottom part to form a mixing drum body together, a bulge part is arranged on the peripheral surface of each drum wall part, and the contour of each bulge part is detachably welded and sealed with the peripheral surface of the corresponding drum wall part. A steam gap is formed between the bulge part and the peripheral surface of the cylinder wall part, and an air inlet pipe and an air outlet pipe are arranged on the bulge part. The structure of the mixing drum is modularly designed, so that corresponding worn parts can be conveniently detached, replaced and maintained, and compared with integral replacement or integral maintenance, the maintenance cost is remarkably reduced, and the downtime is shortened. Meanwhile, a steam heating structure of the mixing drum is improved, and the structure of the bulge piece is designed.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge drying, in particular to a sludge steam drying mixing drum structure. Background Art

[0002] When sewage treatment is carried out in sewage treatment plants, a large amount of sludge is generated, and the sludge needs to be dried and disposed of. Sludge drying, also known as sludge dehydration, refers to the process of removing most of the water content from the sludge through infiltration or evaporation, and generally refers to the use of self-evaporation facilities such as sludge drying fields. After the sludge is concentrated, the water content of the sludge is further reduced by physical methods to facilitate the transportation, accumulation, utilization or further treatment of the sludge. In the process of sludge drying, the sludge generally needs to be stirred to accelerate the volatilization of water in the sludge.

[0003] The problem with the prior art is that when the sludge is stirred in the mixing drum, the steam generated by the sludge incineration needs to be used to heat the mixing drum to improve the sludge drying efficiency in the mixing drum. However, during the stirring process, the sludge continuously scrapes the inner wall of the mixing drum, causing steam to leak into the mixing drum, resulting in overall damage to the mixing drum and significantly increased operating costs.

[0004] Therefore, it is necessary to improve the structure of the sludge steam drying mixing drum so that it can be easily repaired when part of the structure is damaged, thus reducing the downtime that affects the overall production of the plant. Utility Model Content

[0005] In order to solve the deficiencies of the above-mentioned technology, the utility model provides a sludge steam dry working mixing drum structure.

[0006] The technical solution of the utility model: a sludge steam-dried mixing drum structure, the mixing drum comprising a drum bottom piece and a plurality of drum wall pieces, the plurality of drum wall pieces are surrounded and detachably fixed to the drum bottom piece by welding to form a mixing drum body, each drum wall piece is provided with a bulge piece on its outer circumferential surface, the contour of the bulge piece is detachably welded and sealed to the outer circumferential surface of the drum wall piece, a steam gap is provided between the bulge piece and the outer circumferential surface of the drum wall piece, and an air inlet pipe and an air outlet pipe are provided on the bulge piece.

[0007] By adopting the above technical solution, the mixing drum is divided into several drum wall parts and a modular design of drum bottom parts, which are then detachably fixed by welding. When a leakage point appears somewhere on the inner wall of the drum due to mixing wear during the use of the mixing drum, the machine can be stopped to disassemble the corresponding damaged drum wall parts, quickly replace the spare parts, perform welding repairs, and quickly resume production.

[0008] The damaged cylinder wall parts can be repaired and restored easily.

[0009] At the same time, the structure of the drum wall parts has been improved. By welding bulge parts on the outer wall of the drum wall parts and utilizing the welding seal at the edge of the bulge parts, a closed steam gap is formed. Then the plant steam is input into the air inlet pipe, and the steam enters the steam gap to heat the drum wall parts and bulge parts, thereby increasing the temperature and improving the sludge drying efficiency in the mixing drum.

[0010] Similarly, the bulge parts are fixed by detachable welding, and when the bulge parts are damaged, they are disassembled, replaced and repaired.

[0011] A further configuration of the utility model is that a plurality of recessed portions are arranged on the bulge component.

[0012] By adopting the above technical solution, a recessed portion is provided on the bulge component, and the overall weight is reduced by utilizing the concave-convex structure while improving the overall structural strength of the bulge component.

[0013] The utility model is further configured as follows: the recessed portion is recessed toward one side of the barrel wall member, and the recessed portion includes a bottom surface of the recessed portion that abuts against the outer peripheral surface of the barrel wall member.

[0014] By adopting the above technical solution, the bottom surface of the recessed part is against the outer peripheral surface of the cylinder wall part, so that the recessed part is heated by steam and the temperature is transferred to the cylinder wall part, thereby increasing the heated area of ​​the cylinder wall part.

[0015] A further configuration of the utility model is that the plurality of cylinder wall components are equally spaced around the cylinder bottom component.

[0016] A further configuration of the utility model is that the cylinder wall member and the bulge member are made of heat-conducting material.

[0017] The above technical solution is adopted to enhance the thermal conductivity efficiency.

[0018] The beneficial effects of the utility model are as follows: by modularizing the structure of the mixing drum, it is convenient to disassemble, replace and repair the corresponding worn parts, which significantly reduces the maintenance cost and shortens the downtime compared with overall replacement or overall repair. At the same time, the steam heating structure of the mixing drum is improved and the structure of the bulge is designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the embodiment of the utility model Figure 1 ;

[0020] Figure 2 The structure of the embodiment of the utility model Figure 2 ;

[0021] Figure 3 The structure of the embodiment of the utility model Figure 3 ;

[0022] Figure 4 The structure of the embodiment of the utility model Figure 4 ;

[0023] Figure 5 for Figure 4 Sectional view at AA;

[0024] The reference numerals in the accompanying drawings are: 1-bottom part of the cylinder, 2-wall part of the cylinder, 3-bulge part, 31-steam gap, 32-inlet pipe, 33-outlet pipe, 34-recessed part

[0025] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. DETAILED DESCRIPTION

[0026] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0027] The following is a detailed description of the utility model inlet line in conjunction with the accompanying drawings. Figure 1-5 As shown, a sludge steam-dried mixing drum structure is shown, wherein the mixing drum comprises a drum bottom member 1 and a plurality of drum wall members 2, wherein the plurality of drum wall members 2 surround and are detachably welded and fixed to the drum bottom member 1 to form a mixing drum body, wherein a bulge member 3 is arranged on the outer circumference of each drum wall member 2, wherein the contour of the bulge member 3 is detachably welded and sealed to the outer circumference of the drum wall member 2, wherein a steam gap 31 is arranged between the bulge member 3 and the outer circumference of the drum wall member 2, and an air inlet pipe 32 and an air outlet pipe 33 are arranged on the bulge member 3.

[0028] The mixing drum is divided into a modular design of several drum wall parts 2 and drum bottom parts 1, which are then detachably fixed by welding. When a leakage point appears somewhere on the inner wall of the drum due to mixing wear during the use of the mixing drum, the machine can be stopped to disassemble the corresponding damaged drum wall part 2, and the spare parts can be quickly replaced and welded for repair, so as to quickly resume production.

[0029] The damaged cylinder wall member 2 can be repaired and restored without any hassle.

[0030] At the same time, the structure of the drum wall member 2 is improved by welding the bulge member 3 to the outer wall of the drum wall member 2 and utilizing the welding seal at the edge of the bulge member 3 to form a closed steam gap 31. Then, the plant steam is input into the air inlet pipe 32, and the steam enters the steam gap 31 to heat the drum wall member 2 and the bulge member 3. The temperature is increased to improve the sludge drying efficiency in the mixing drum.

[0031] Similarly, the bulge component 3 is fixed by detachable welding, and when the bulge component 3 is damaged, it can be disassembled, replaced and repaired.

[0032] The bulge component 3 is provided with a plurality of recessed portions 34 .

[0033] By providing the recessed portion 34 on the bulge component 3 , the overall weight is reduced by utilizing the concave-convex structure, while the overall structural strength of the bulge component 3 is improved.

[0034] The recessed portion 34 is recessed toward one side of the cylinder wall member 2 , and the recessed portion 34 includes a bottom surface of the recessed portion 34 that contacts the outer peripheral surface of the cylinder wall member 2 .

[0035] The bottom surface of the recessed portion 34 is made to abut against the outer peripheral surface of the cylinder wall member 2, so that the recessed portion 34 is heated by steam and the temperature is transferred to the cylinder wall member 2, thereby increasing the heated area of ​​the cylinder wall member 2.

[0036] The plurality of cylinder wall parts 2 are equally spaced around the cylinder bottom part 1 .

[0037] The cylinder wall member 2 and the bulge member 3 are made of heat-conducting material.

[0038] Enhance thermal conductivity.

[0039] By modularizing the structure of the mixing drum, it is easy to disassemble, replace and repair the corresponding worn parts, which significantly reduces the maintenance cost and shortens the downtime compared with overall replacement or overall repair. At the same time, the steam heating structure of the mixing drum is improved, and the structure of the bulge 3 is designed.

[0040] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and the concept of the utility model should fall within the protection scope of the claims attached to the utility model.

Claims

1. The sludge steam dry working mixing drum structure is characterized by: The mixing drum includes a drum bottom piece and a plurality of drum wall pieces, which are surrounded and detachably fixed to the drum bottom piece by welding to form a mixing drum body. A bulge is provided on the outer circumference of each drum wall piece, and the contour of the bulge is detachably welded and sealed to the outer circumference of the drum wall piece. A steam gap is provided between the bulge and the outer circumference of the drum wall piece, and an air inlet pipe and an air outlet pipe are provided on the bulge.

2. The sludge steam dry working mixing drum structure according to claim 1 is characterized by: The bulge component is provided with a plurality of recessed parts.

3. The sludge steam dry working mixing drum structure according to claim 2 is characterized by: The recessed portion is recessed toward one side of the barrel wall member, and includes a bottom surface of the recessed portion that contacts the outer peripheral surface of the barrel wall member.

4. The sludge steam dry working mixing drum structure according to any one of claims 1 to 3, characterized in that: The plurality of cylinder wall parts are equally spaced around the cylinder bottom part.

5. The sludge steam dry working mixing drum structure according to claim 4 is characterized by: The cylinder wall component and the bulge component are made of heat-conducting material.

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