Odor-resistant plugging structure of sludge receiving bin

Abstract

The utility model provides an odor-resistant plugging structure of a sludge receiving bin, which comprises a steel wire mesh, a steel wire rope, a steel wire rope and a steel wire rope, the waterproof mortar is embedded on the steel wire mesh to form a chamfer and integrally covers the gap to form a first sealing structure; the upper part of the Z-shaped flanged steel plate is flanged and is obliquely spliced and fully welded with the upper part of the receiving bin steel plate, and the lower part of the Z-shaped flanged steel plate is fixed on the concrete floor surface by adopting a rubber pad and a bolt, and the whole circle of the receiving port is enclosed to form a second sealing structure; and sealant is arranged at the joint of the lower part of the Z-shaped edgefold steel plate, the concrete floor surface and the rubber pad. Aiming at the problems that a gap between a material receiving bin and a concrete structure plate surface is not completely blocked, a steel plate of the material receiving bin is influenced by vibration for a long time, conventional blocking is easy to crack, odor is easy to generate and escape, and environmental pollution is caused, a multi-blocking structure is utilized to prevent the odor from overflowing through a material receiving port.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge deodorization construction, in particular to a sludge receiving bin deodorization blocking structure. Background Art

[0002] Sludge has a high moisture content, strong volatility, and contains a large amount of toxic gases. Preventing the escape of odor is the key task of the sludge disposal plant, and the sealing of the sludge receiving silo is of utmost importance. The main function of the sludge receiving silo is to store sludge and transport it to the incinerator for incineration through a cage; the receiving silo is welded with 10mm thick steel plates into a cone bucket with an opening size of 5*5m and a volume of V=40m3; the silo body is erected at 12.5m, embedded in the concrete floor slab all around, 300mm above the floor, and there is a 100mm wide installation gap between the main body plane and the floor slab. Conventional sealing generally uses mortar or concrete sealing. However, it is not convenient to support the bottom mold at the sealing point between the receiving silo body and the concrete floor slab, and it cannot be vibrated. There are many gaps or cold joints after conventional sealing. When the sludge grabber grabs and releases sludge into the receiving silo, impact vibration is generated, and the receiving silo body and the concrete floor are two different materials. Conventional plugging is easily damaged and it is difficult to form an effective plugging.

[0003] Therefore, developing a sludge receiving silo anti-odor plugging structure with better plugging effect is a technical problem that needs to be solved urgently. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, the utility model provides an anti-odor sealing structure for a sludge receiving silo. In order to solve the problems that the gap between the receiving silo and the concrete structure plate is not completely sealed, and the steel plate of the receiving silo is affected by vibration for a long time, conventional sealing is prone to cracking, and odor is prone to escape and cause environmental pollution, a multiple sealing structure is used to prevent the odor from overflowing through the receiving port.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a sludge receiving silo deodorizing plugging structure, which is characterized by comprising:

[0006] The wire mesh is used to completely wrap the gap between the steel plate of the receiving silo and the concrete floor surface and is fixed up and down;

[0007] Waterproof mortar is embedded in the steel wire mesh to form chamfers and covers the gap as a whole to form a first sealing structure;

[0008] The upper part of the Z-shaped folded steel plate is folded and welded to the upper part of the receiving silo steel plate. The lower part is fixed to the concrete floor with rubber pads and bolts, and the whole circle surrounds the receiving port to form a second sealing structure.

[0009] Sealant is provided at the joints of the lower part of the Z-shaped folded edge steel plate, the concrete floor surface and the rubber pad.

[0010] Further, the weld between the Z-shaped flanged steel plate and the receiving bin steel plate and the metal surface of the Z-shaped flanged steel plate are fully coated with anti-corrosion paint.

[0011] Further, the total thickness of the anti-corrosion paint is not less than 240 microns.

[0012] Further, the upper part of the Z-shaped flanged steel plate is fully welded at a 45° angle to the upper part of the receiving bin steel plate.

[0013] Further, the wire mesh is placed in the middle along the gap, the upper part is spot-welded to the side wall steel plate of the receiving bin, and the lower part is fixed to the concrete floor surface with cement nails. The upper and lower sides overlap by not less than 100 mm.

[0014] Further, the Z-shaped flanged steel plate is 6 mm thick, 116 mm wide at the upper part, 100 mm wide at the lower part, and the web height is 300 mm.

[0015] Further, at the corner where the Z-shaped flanged steel plate encloses the receiving opening, a 45-degree angle splicing welding is adopted.

[0016] Further, the rubber pad is 10 mm thick and 100 mm wide; the bolts are expansion bolts with a specification of 10 mm and the spacing is 200 mm.

[0017] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0018] (1) In the utility model, a wire mesh for plastering is used. The upper part is spot-welded to the receiving bin steel plate, and the lower part is fixed to the concrete structure with cement nails; the whole circle wraps the gap between the receiving bin and the concrete structure, and waterproof mortar is plastered on the wire mesh to form the first sealing measure; a Z-shaped flanged steel plate is made according to the gap size. The upper part is welded to the upper edge of the side wall of the receiving bin, and the lower part is fixed to the concrete structure with bolts. The flanged steel plate and the concrete surface are isolated by a rubber sealing strip, and sealant is fully applied on the outside to form the second sealing measure; in addition, the welds and surfaces of the corner angle steel are all coated with anti-corrosion paint, which can also form the third sealing measure; the multiple sealing structures can well prevent the volatilized gas of high-moisture-content sludge from escaping from the receiving opening.

[0019] (2) In the utility model, the wire mesh is used instead of the bottom formwork, and there is no gap after layered plastering; the form of the flanged steel plate plus the rubber pad can reduce the damage of vibration to the sealing measure.

[0020] (3) In the utility model, waterproof mortar, sealant and other components are used, and anti-corrosion treatment measures are taken for the steel plate, which can effectively isolate the sludge water vapor. Description of the Drawings

[0021] The present utility model, its features, shape, and advantages will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The same reference numerals indicate the same parts throughout all the drawings. The drawings are not drawn to scale exactly, and the emphasis is on showing the gist of the present utility model.

[0022] Figure 1 It is a schematic plan view of the odor-proof sealing structure of the receiving bin in an embodiment of the present utility model;

[0023] Figure 2 It is a schematic A-A sectional view of the odor-proof sealing structure of the receiving bin in an embodiment of the present utility model;

[0024] Figure 3 It is a schematic B-B sectional view of the odor-proof sealing structure of the receiving bin in an embodiment of the present utility model;

[0025] Figure 4 is Figure 2 an enlarged view of the circled node area in;

[0026] Among them, 1. Receiving bin steel plate; 2. Concrete floor surface; 11. Steel wire mesh; 12. Waterproof mortar; 21. Z-shaped folded-edge steel plate; 211. Full-welded part; 22. Rubber pad; 23. Bolt; 24. Sealant. Detailed implementation manners

[0027] The following will describe the exemplary embodiments of the present disclosure in more detail with reference to the accompanying drawings. It should be understood that all these described exemplary embodiments are only partial embodiments and examples of the present utility model, rather than all. On the contrary, these exemplary embodiments are provided so that those skilled in the art can understand the present disclosure more thoroughly and can convey the technical content of the present disclosure more completely to those skilled in the art.

[0028] In the description of the present application, the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present utility model.

[0029] Embodiment

[0030] Refer to Figures 1 to 4 , this embodiment provides an odor-proof sealing structure for a sludge receiving bin, including:

[0031] A steel wire mesh 11, which wraps around the gap between the receiving bin steel plate 1 and the concrete floor surface 2 in a whole circle and is fixed up and down;

[0032] A waterproof mortar 12, which is plastered on the steel wire mesh 11 to form a chamfer and integrally covers the gap to form a first sealing structure;

[0033] The Z-shaped flanged steel plate 21 has its upper flange obliquely butted and fully welded to the upper part of the steel plate 1 of the receiving bin, and its lower plane is fixed on the concrete floor slab 2 by means of a rubber gasket 22 and bolts 23, surrounding the receiving opening in a complete circle;

[0034] At the connection of the lower part of the Z-shaped flanged steel plate 21, the concrete floor slab 2 and the rubber gasket 22, a sealant 24 is provided.

[0035] More specifically, the utility model uses a plastering wire mesh folded into an L shape, with the upper part spot-welded to the side wall steel plate of the receiving bin and the lower part fixed to the concrete structure by cement nails; the gap between the receiving bin and the concrete structure is wrapped in a complete circle, and waterproof mortar is plastered on the wire mesh to form the first sealing measure; a Z-shaped flanged steel plate is fabricated according to the size of the gap, with the upper part welded to the upper edge of the side wall of the receiving bin and the lower part fixed to the concrete structure by expansion bolts. The angle steel of the flange is isolated from the concrete surface by a rubber sealing strip, and sealant is fully applied on the outside to form the second sealing measure.

[0036] Preferably, the weld between the Z-shaped flanged steel plate 21 and the steel plate 1 of the receiving bin and the metal surface of the Z-shaped flanged steel plate are fully coated with anti-corrosion paint. The anti-corrosion paint can form the third sealing measure.

[0037] As a preferred technical solution, the upper part of the Z-shaped flanged steel plate 21 is obliquely butted and fully welded to the upper part of the steel plate 1 of the receiving bin at 45°, so that the welding points are not easily damaged.

[0038] As a preferred technical solution, the wire mesh 11 is placed in the middle along the gap, with the upper part spot-welded to the side wall of the steel plate 1 of the receiving bin and the lower part fixed to the concrete floor slab 2 by cement nails. The upper and lower sides overlap by no less than 100 mm. The wire mesh 11 is a retaining net for the waterproof mortar 12 and should be laid flat without wrinkles.

[0039] As a preferred technical solution, at the corner where the Z-shaped flanged steel plate 21 surrounds the receiving opening, 45-degree oblique butt welding is adopted to ensure the integral sealing effect of the second sealing structure in a complete circle.

[0040] As a specific example, refer to Figure 1 , the receiving bin is welded into a conical hopper with a 10-mm-thick steel plate, the opening size is 5 * 5 m, and the volume V = 40 m³; the bin body is erected at 12.5 m, embedded in the concrete floor slab around, 300 mm higher than the floor surface, and there is a 100-mm-wide installation gap between the periphery of the bin body plane and the floor around. The materials and equipment required for the anti-odor plugging construction of the receiving bin include: a flanging machine, steel plates, wire meshes, mortar, sealing strips, sealant, expansion bolts, an electric welding machine, and anti-corrosion paint.

[0041] Refer to Figures 1 to 3 , the specific construction steps of the above anti-odor plugging structure are as follows:

[0042] Step 1: Cut the 300-mm-wide plastering steel wire mesh 11, place it in the middle along the gap, and lay it in a full circle at the place to be sealed. The upper and lower sides should overlap by no less than 100 mm. The upper part is spot-welded to the side wall of the receiving bin steel plate 1 by an electric welding machine, and the lower part is fixed to the concrete floor slab surface 2 by cement nails. This mesh is the retaining mesh for the waterproof mortar 12 and should be laid flat without wrinkles.

[0043] Step 2: The waterproof mortar 12 is plastered in layers at the steel wire mesh to form a chamfer, and the whole gap is covered to form the first sealing measure.

[0044] Step 3: The flanging machine folds the 6-mm-thick steel plate into a Z shape, with the upper width of 116 mm, the lower width of 100 mm, and the web height of 300 mm. The upper part of the Z-shaped flanged steel plate 21 is fully welded (full-welded part 211) to the upper part of the receiving bin, and the longitudinal part at the corner is welded by 45-degree oblique splicing. The whole circle wraps the receiving opening to form a continuous weld.

[0045] Step 4: The lower part of the Z-shaped flanged steel plate 21 is fixed to the concrete floor slab surface 2 with bolts 23 and 10-mm-thick rubber gaskets 22. The width of the rubber gasket 22 is 100 mm, and the corner is welded by 45-degree oblique splicing. The bolts 23 are 10-mm expansion bolts with a spacing of 200 mm. After being firmly fixed, the second sealing measure is formed.

[0046] Step 5: All the welds where the Z-shaped flanged steel plate 21 contacts the receiving bin are ground and two coats of anti-corrosion paint are applied.

[0047] Step 6: Two coats of epoxy anti-corrosion paint are applied to the metal surface layer of the Z-shaped flanged steel plate, with a total thickness of no less than 240 microns.

[0048] Step 7: The joints among the lower part of the Z-shaped flanged steel plate, the concrete structure surface layer, and the rubber gasket are sealed in a full circle with silicone sealant.

[0049] This embodiment aims at the problems that the gap between the receiving bin and the concrete structure slab surface is not thoroughly sealed, and the receiving bin steel plate is affected by long-term vibration. Conventional sealing is prone to cracking and odor leakage, causing environmental pollution. By adding a steel wire mesh at the gap, the first waterproof mortar is made more dense; by adding a flanged steel plate on the receiving bin steel plate to wrap the gap of the receiving bin as a whole to form the second sealing measure; by grinding the welds of the flanged steel plate and applying two coats of anti-corrosion paint, and applying a circle of sealant to the bottom interface of the flanged steel plate, the sealing of the receiving hopper is strengthened to prevent odor leakage.

[0050] In summary, the present utility model provides an anti-odor sealing structure for a sludge receiving bin, including: a wire mesh that wraps around the gap between the receiving bin steel plate and the concrete floor slab and is fixed up and down; waterproof mortar that is plastered on the wire mesh to form a chamfer and integrally covers the gap to form a first sealing structure; a Z-shaped flanged steel plate, the upper flange of which is obliquely butt-welded and fully welded to the upper part of the receiving bin steel plate, and the lower part of which is fixed on the concrete floor slab by rubber pads and bolts, and the whole circle encloses the receiving port to form a second sealing structure; a sealant is provided at the connection of the lower part of the Z-shaped flanged steel plate, the concrete floor slab, and the rubber pad. The present utility model aims at the problems that the gap between the receiving bin and the concrete structural slab is not thoroughly sealed, and the receiving bin steel plate is affected by vibration for a long time, and the conventional sealing is easy to crack and prone to odor leakage, causing environmental pollution. A multiple sealing structure is used to prevent odor from leaking out through the receiving port.

[0051] The preferred embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific implementation manners. The equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes and modifications to the technical solution of the present utility model by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present utility model. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A sludge receiving silo deodorizing and blocking structure, characterized in that: include: The steel wire mesh (11) completely wraps the gap between the receiving silo steel plate (1) and the concrete floor surface (2) and is fixed up and down; Waterproof mortar (12), embedded in the steel wire mesh (11) to form a chamfer, and covering the gap as a whole to form a first sealing structure; The upper part of the Z-shaped folded edge steel plate (21) is folded and welded to the upper part of the receiving bin steel plate (1) at an angle, and the lower part is fixed to the concrete floor surface (2) by a rubber pad (22) and bolts (23), so as to completely enclose the receiving port and form a second sealing structure; Sealant (24) is provided at the connection between the lower part of the Z-shaped folded edge steel plate (21), the concrete floor surface (2) and the rubber pad (22).

2. The sludge receiving silo deodorizing and plugging structure according to claim 1, characterized in that: The weld between the Z-shaped folded edge steel plate (21) and the receiving bin steel plate (1) and the metal surface of the Z-shaped folded edge steel plate are fully coated with anti-corrosion paint.

3. The sludge receiving silo deodorizing and blocking structure according to claim 2 is characterized in that: The total thickness of the anti-corrosion paint is not less than 240 microns.

4. A sludge receiving silo deodorizing plugging structure according to claim 1 or 2, characterized in that: The upper part of the Z-shaped folded edge steel plate (21) is fully welded to the upper part of the receiving bin steel plate (1) at an angle of 45 degrees.

5. A sludge receiving silo deodorizing plugging structure according to claim 1 or 2, characterized in that: The steel wire mesh (11) is placed in the center along the gap, the upper part is spot welded to the side wall of the receiving silo steel plate (1), and the lower part is fixed to the concrete floor surface (2) by cement nails, and the overlap between the upper and lower sides is not less than 100 mm.

6. A sludge receiving silo deodorizing plugging structure according to claim 1 or 2, characterized in that: The Z-shaped folded edge steel plate (21) is 6 mm thick, 116 mm wide at the top, 100 mm wide at the bottom, and 300 mm high at the web.

7. A sludge receiving silo deodorizing plugging structure according to claim 1 or 2, characterized in that: The corners of the Z-shaped folded edge steel plates (21) surrounding the receiving opening are welded at 45 degrees.

8. The sludge receiving silo deodorizing and blocking structure according to claim 6, characterized in that: The rubber pad (22) is 10 mm thick and 100 mm wide; the bolts (23) are expansion bolts with a specification of 10 mm and a spacing of 200 mm.

Images