Baijiu brewing vinasse yard anti-leakage structure

Abstract

This utility model belongs to the field of anti-seepage technology for liquor lees storage yards, and provides an anti-seepage structure for liquor brewing lees storage yards, including a protective layer; the protective layer includes a reinforced concrete base slab and an anti-seepage plate; the reinforced concrete base slabs are distributed in a matrix, and a thickened layer is provided on the top surface of the reinforced concrete base slabs; the anti-seepage plate is set between two adjacent reinforced concrete base slabs, and the anti-seepage plate includes a middle section, a first edge section and a second edge section located on both sides of the middle section, the first edge section and the second edge section are respectively embedded in the two reinforced concrete base slabs, and the middle section has a corrugated structure. This structure designs the reinforced concrete base slabs as a segmented structure, effectively avoiding large-size concrete cracking. The anti-seepage plate is set between the reinforced concrete base slabs for connection and sealing to prevent lees leakage, and the corrugated structure of the middle section leaves room for movement to accommodate displacement differences between adjacent blocks. The thickened layer on the top surface of the reinforced concrete base slab can serve as a corrosion allowance for the storage yard, eliminating the need for secondary anti-corrosion layer construction and avoiding secondary damage from later construction machinery.

Description

Technical Field

[0001] This utility model belongs to the field of anti-seepage technology for lees storage yards, specifically relating to an anti-seepage structure for lees storage yards used in liquor brewing. Background Technology

[0002] China is a major producer of baijiu (Chinese liquor). According to national statistics, in 2024, the total output of baijiu from enterprises above a designated size nationwide (converted to 65% ABV, marketable volume) reached 4.145 million kiloliters. Baijiu brewing generally uses raw materials such as sorghum, rice, glutinous rice, wheat, corn, and rice husks. The solid waste extracted after baijiu brewing is called distiller's grains (or lees). Generally, producing 1 kg of liquor requires 2-4 kg of raw materials and generates 2.5-5 kg ​​of distiller's grains. Preliminary estimates suggest that the total output of distiller's grains from enterprises above a designated size nationwide is approximately 10-20 million tons, a very large quantity.

[0003] Baijiu lees have the following characteristics:

[0004] 1. It contains a certain amount of nutrients such as protein and starch, which can be utilized as resources.

[0005] 2. The water content is high, generally above 60%. During storage, a large amount of residue will seep out. The residue contains very high concentrations of organic matter, ammonia nitrogen, etc., and is classified as high-concentration organic wastewater. Once leaked into the environment, it will cause serious pollution to surface water, soil, and groundwater.

[0006] 3. The lees and lees liquid are acidic and highly corrosive.

[0007] Both the brewing of baijiu (Chinese liquor) and the reuse of lees require storage and stacking areas for lees, making the leak-proof design of these storage areas crucial. Compared to traditional storage yards, lees storage yards offer the following functional advantages:

[0008] 1. The volume of distiller's grains is loose, and there is a mismatch between the production process and the resource utilization process. The area of ​​the grain storage is generally very large.

[0009] 2. The load on the storage yard varies greatly, including distiller's grains, transport vehicles, and operating machinery;

[0010] 3. Forklifts are usually used during the dredging process, which can damage the ground.

[0011] Common practices at existing distiller's grains storage sites:

[0012] 1. The entire silo floor is poured to a depth of 250-300m. 2 A single sheet of reinforced concrete;

[0013] 2. Apply anti-corrosion coating to the reinforced concrete surface.

[0014] Problems exist:

[0015] 1. Due to the large area and complex load, ground cracking is common and difficult to control;

[0016] 2. Due to the frequent operation of transport vehicles and loaders, the anti-corrosion layer on the ground is easily damaged and peeled off by vehicles such as forklifts, rendering it ineffective.

[0017] 3. There is a high risk of leakage of the waste liquid. Utility Model Content

[0018] To address the shortcomings of existing technologies, this utility model provides a seepage-proof structure for liquor brewing lees storage yards, which can solve the above-mentioned problems.

[0019] To achieve the above objectives, the present invention adopts the following technical solution: a seepage-proof structure for a liquor brewing lees storage yard, including a protective layer;

[0020] The protective layer includes a reinforced concrete base slab and a waterproof slab;

[0021] The reinforced concrete base plates are arranged in a matrix, with gaps between adjacent reinforced concrete base plates, and a thickened layer is provided on the top surface of the reinforced concrete base plates;

[0022] The anti-seepage plate is installed between two adjacent reinforced concrete base plates. The anti-seepage plate includes a middle section, a first edge section and a second edge section located on both sides of the middle section. The first edge section and the second edge section are respectively embedded in the two reinforced concrete base plates. The middle section has a wavy structure.

[0023] Preferably, the bottom of the protective layer is provided with an impermeable layer, and a pebble filtrate drainage layer is provided between the protective layer and the impermeable layer.

[0024] Preferably, the bottom of the impermeable layer is provided with a compacted clay layer, and the impermeable layer is inclined.

[0025] Preferably, the impermeable layer comprises, from top to bottom, a nonwoven geotextile protective layer, a high-density polyethylene geomembrane layer, and a bentonite waterproof blanket layer.

[0026] Preferably, a crushed stone layer is provided between the pebble filtrate drainage layer and the protective layer.

[0027] Preferably, a plain concrete pad layer is provided between the aggregated crushed stone layer and the protective layer.

[0028] Preferably, the thickened layer is a concrete thickened layer, and the thickness of the thickened layer is 2-3 cm.

[0029] Preferably, the cross-shaped gaps between the four adjacent reinforced concrete base plates are filled with cross-shaped flexible sealant, which is then bonded and fixed to the top surface of the waterproofing board.

[0030] Preferably, the flexible sealant is a silicone sealant.

[0031] Preferably, the impermeable plate is made of stainless steel.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0033] 1. This utility model provides a seepage-proof structure for a liquor brewing lees storage yard. The reinforced concrete base slab is designed as a segmented structure, effectively preventing large-scale concrete cracking. Seepage-proof plates are installed between the reinforced concrete base slabs for connection and sealing, preventing leakage of the lees. The middle section has a corrugated structure with allowance for movement, accommodating displacement differences between adjacent blocks and preventing damage. A thickened layer is provided on the top surface of the reinforced concrete base slab, which serves as a corrosion allowance for the storage yard, eliminating the need for secondary anti-corrosion layer construction and avoiding secondary damage from later machinery operations.

[0034] 2. This utility model provides a seepage-proof structure for a liquor brewing lees storage yard. An HDPE geomembrane layer is installed below the protective layer, along with a filtrate drainage layer on the membrane. This prevents the lees from flowing into the external environment should the upper structure leak. Multiple protective measures reduce environmental risks.

[0035] 3. This utility model provides a seepage-proof structure for a liquor brewing lees storage yard. The cross-shaped gaps between four adjacent reinforced concrete base slabs are sealed with corrosion-resistant materials with high elongation at break, such as silicone sealant. This facilitates inspection and replacement during the storage period. Potential leakage points are clearly located and few in number, which is beneficial for later repairs. Attached Figure Description

[0036] Figure 1 A front view schematic diagram of a seepage-proof structure for a liquor brewing lees storage yard provided in this embodiment of the present invention;

[0037] Figure 2 A front view schematic diagram of the seepage-proof layer of a seepage-proof structure for a liquor brewing lees storage yard, provided as an embodiment of this utility model;

[0038] Figure 3 A front view schematic diagram of the anti-seepage layer and related parts of an anti-seepage structure for a liquor brewing lees storage yard, provided in an embodiment of this utility model;

[0039] Figure 4 A top view of the gap and related parts of a seepage-proof structure for a liquor brewing lees storage yard, provided for an embodiment of this utility model.

[0040] Figure 5 A top view schematic diagram of a flexible sealant and related parts for an anti-leakage structure of a liquor brewing lees storage yard provided in this embodiment of the utility model;

[0041] Figure 6 A top view of the cross-shaped gap between the four reinforced concrete base plates of a seepage-proof structure for a liquor brewing lees storage yard, provided as an embodiment of this utility model.

[0042] Figure 7 This is a top view of the end of the seepage-proof plate of a seepage-proof structure for a liquor brewing lees storage yard, provided as an embodiment of the present invention.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1. Reinforced concrete base slab;

[0045] 2. Impermeable board; 201. First edge section; 202. Middle section; 203. Second edge section;

[0046] 3. Impermeable layer; 301. Non-woven geotextile protective layer; 302. High-density polyethylene geomembrane layer; 303. Bentonite waterproof blanket layer;

[0047] 4. Pebble filtrate drainage layer;

[0048] 5. Compact the clay layer;

[0049] 6. Aggregated crushed stone layer;

[0050] 7. Plain concrete foundation layer;

[0051] 8. Flexible sealant;

[0052] 9. Gap. Detailed Implementation

[0053] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0054] This embodiment provides a seepage-proof structure for a liquor brewing lees storage yard, including a protective layer;

[0055] The protective layer includes a reinforced concrete base slab 1 and a waterproof slab 2.

[0056] Among them, the reinforced concrete base slabs 1 are distributed in a matrix, with gaps between adjacent reinforced concrete base slabs 1, and a thickened layer is provided on the top surface of the reinforced concrete base slabs 1;

[0057] For example, see Figure 1The protective layer is the top layer, consisting of two reinforced concrete base slabs 1, evenly spaced. A thickened layer, which can be made of concrete, is provided on the top surface of each base slab 1. This thickened layer is poured together with the base slabs 1, and its dimensions are the same as the base slabs 1. The thickness of the thickened layer is 2-3 cm. The distiller's grains can be directly stored and stacked on the thickened layer. The thickened layer provides sufficient corrosion allowance for the distiller's grains, eliminating the need for a secondary anti-corrosion layer. This avoids the need to apply anti-corrosion coating to the surface of the thickened layer, preventing secondary damage from machinery during later operations.

[0058] The anti-seepage board 2 is set between two adjacent reinforced concrete base plates 1. The anti-seepage board 2 includes a middle section 202, a first edge section 201 and a second edge section 203 located on both sides of the middle section 202. The first edge section 201 and the second edge section 203 are respectively embedded in the two reinforced concrete base plates 1. The middle section 202 has a wavy structure.

[0059] For example, see Figure 1 The geomembrane 2 can be made of 304 stainless steel and has a thickness of 1.5-2mm. From left to right, the geomembrane 2 comprises a first edge section 201, a middle section 202, and a second edge section 203, all of which are integrally formed. The first edge section 201 is embedded in the left-side reinforced concrete base slab 1, the second edge section 203 is embedded in the right-side reinforced concrete base slab 1, and the middle section 202 is located between the two reinforced concrete base slabs 1. The width of the geomembrane 2 is the same as the width of the reinforced concrete base slab 1 (with the left-right direction as the length direction), allowing the middle section 202 to completely cover the gap between the two reinforced concrete base slabs 1, connecting and sealing them to prevent leakage of the bottom liquid. The middle section 202 features a corrugated design with allowance for movement, accommodating displacement differences between the two reinforced concrete base slabs 1 and preventing damage to the middle section 202.

[0060] In summary, the anti-seepage structure for the liquor brewing lees storage yard provided in this embodiment designs the reinforced concrete base slab 1 as a segmented structure, effectively avoiding large-scale concrete cracking. Impermeable plates 2 are installed between the reinforced concrete base slabs 1 for connection and sealing, preventing leakage of the lees. The middle section 202 has a corrugated structure with allowance for movement, accommodating displacement differences between adjacent blocks and preventing damage. A thickened layer is provided on the top surface of the reinforced concrete base slab 1, which serves as a corrosion allowance for the storage yard, eliminating the need for secondary anti-corrosion layer construction and avoiding secondary damage from subsequent machinery operations.

[0061] Based on the above solution, in the technical solution provided in this embodiment, a seepage-proof layer 3 is provided at the bottom of the protective layer, and a pebble filtrate drainage layer 4 is provided between the protective layer and the seepage-proof layer 3.

[0062] For example, see Figure 1Below the protective layer is a seepage-proof layer 3, with the same planar dimensions as the protective layer. Between the protective layer and the seepage-proof layer 3 is a pebble filtrate drainage layer 4, also with the same planar dimensions as the protective layer. The filtrate can flow within the pebble filtrate drainage layer 4, while the seepage-proof layer 3 prevents further seepage. The seepage-proof plate 2 and the seepage-proof layer 3 work together, providing multiple protective measures to reduce environmental risks.

[0063] Therefore, an impermeable layer 3 is installed below the protective layer. If there is leakage in the upper structure, the impermeable layer 3 can prevent the waste liquid from continuing to seep downwards and into the external environment.

[0064] See Figure 2 The impermeable layer 3, from top to bottom, includes a non-woven geotextile protective layer 301, a high-density polyethylene geomembrane layer 302, and a bentonite waterproof blanket layer 303.

[0065] The nonwoven geotextile protective layer 301 can be made of polyester (PET) or polypropylene (PP) fibers through needle punching, and has high strength, wear resistance, and corrosion resistance. It prevents the upper structure from damaging the lower HDPE membrane.

[0066] High-density polyethylene geomembrane 302, also known as HDPE membrane, can be made from continuous high-density polyethylene resin, with a thickness typically of 1.0~2.0mm, and is black (containing UV inhibitors). It relies on its extremely low permeability coefficient to prevent the seepage of wastewater.

[0067] The bentonite waterproofing blanket layer 303 can be made by wrapping natural sodium-based bentonite particles with two layers of geotextile and fixing them by needle punching or sewing. When bentonite comes into contact with water, it expands (increasing in volume by 15 to 20 times) to form a dense colloid, which further blocks the penetration path of the slurry.

[0068] In the technical solution provided in this embodiment, a compacted clay layer 5 is provided at the bottom of the seepage-proof layer 3, and the seepage-proof layer 3 is inclined.

[0069] For example, see Figure 1 The bottom of the geomembrane 3 is a compacted clay layer 5, which has the same planar dimensions as the protective layer. The compacted clay layer 5 serves as the foundation, bearing the load from above and preventing damage to the upper flexible geomembrane due to uneven settlement. By tilting the surface of the compacted clay layer 5, the geomembrane 3 can be tilted, allowing the effluent to flow along its surface and be collected when it seeps into it. (See also...) Figure 3 The impermeable layer 3 is inclined on the left and on the right with a slope of 2%. A ditch structure is set at the right end of the impermeable layer 3 to collect the sludge flowing down the surface of the impermeable layer 3 for subsequent centralized treatment.

[0070] In the technical solution provided in this embodiment, a crushed stone layer 6 is provided between the pebble filtrate guiding layer 4 and the protective layer;

[0071] For example, see Figure 1 The aggregated crushed stone layer 6 has the same planar dimensions as the protective layer. The aggregated crushed stone layer 6 has high permeability, which can quickly drain the seeping sewage and reduce the damage of static pressure to the underlying structure.

[0072] In the technical solution provided in this embodiment, a plain concrete cushion layer 7 is provided between the aggregate crushed stone layer 6 and the protective layer.

[0073] For example, see Figure 1 The plain concrete cushion layer 7 has the same planar dimensions as the protective layer. The plain concrete cushion layer 7 can provide a uniform support surface and prevent uneven settlement from causing the upper reinforced concrete base slab 1 to tear.

[0074] In the technical solution provided in this embodiment, the cross-shaped gaps between the four adjacent reinforced concrete base plates 1 are filled with cross-shaped flexible sealant 8, and the flexible sealant 8 is bonded and fixed to the top surface of the anti-seepage board 2; the flexible sealant 8 is silicone sealant.

[0075] For example, see Figure 4 The protective layer includes four reinforced concrete base plates 1, which are arranged in a matrix and located at the four corners of a square, forming a cross-shaped gap between them. Correspondingly, the protective layer includes four impermeable plates 2, which are located on the top, bottom, left, and right sides of the cross-shaped gap.

[0076] Since the width of the impermeable plate 2 is the same as the width of the reinforced concrete base slab 1, the middle section 202 can only cover the gap between two adjacent reinforced concrete base slabs 1. Areas extending beyond the gap between the two slabs cannot be covered. This results in a square notch 9 at the center of the cross-shaped gap, with the side length of the notch 9 being the same as the width of the gap between the two slabs 1. To prevent the slurry from flowing away through the notch 9, see... Figure 5 The gap 9 is covered with a cross-shaped flexible sealant 8. The flexible sealant 8 is adapted to the cross-shaped gap and can fully cover the center of the cross-shaped gap, thereby completely covering the gap 9 and preventing the sludge from flowing out of the gap 9. The four sides of the flexible sealant 8 are respectively attached and fixed to the middle section 202 of the four seepage-proof plates 2, which is convenient for disassembly and replacement.

[0077] The flexible sealant 8 can be a silicone sealant, which is corrosion resistant, has high elongation at break, and can deform as the middle section 202 shifts.

[0078] Among them, such as Figure 6 As shown, at the cross-shaped gap, the end of the seepage barrier 2 near the notch 9 is cut to form a triangular structure, which facilitates the welding of adjacent seepage barrier 2 into one piece.

[0079] Taking the left side of the cross-shaped gap as an example, the corresponding seepage barrier 2 is as follows: Figure 7 As shown, two triangular areas are cut off from the right end of the geomembrane 2, thus forming a triangular-like structure on the right end of the geomembrane 2. Similarly, the other three geomembranes 2 are treated in the same way. The two inclined edges of the right end of the geomembrane 2 are fully welded to the inclined edges of the two adjacent geomembranes 2, thus achieving the connection and fixation of the adjacent geomembranes 2. This avoids interference between adjacent geomembranes 2, preventing the ends of the geomembranes 2 from warping.

[0080] It should be noted that only portions of the first edge segment 201 and the second edge segment 203 are cut off. Both the first edge segment 201 and the second edge segment 203 are flat structures, facilitating full welding. The middle segment 202 does not require cutting, and because it has a wavy design, it cannot be welded to the middle segments 202 of adjacent structures. However, when using flexible sealant 8 for sealing, the flexible sealant 8 can deform, adapting to and fully adhering to the wavy structure of the middle segment 202, effectively improving the sealing effect.

[0081] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0084] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A white liquor brewing vinasse yard anti-leakage structure, characterized in that, Including a protective layer; The protective layer includes a reinforced concrete base plate (1) and a seepage-proof plate (2); The reinforced concrete base plate (1) is distributed in a matrix, with gaps between adjacent reinforced concrete base plates (1), and a thickened layer is provided on the top surface of the reinforced concrete base plate (1); The impermeable plate (2) is set between two adjacent reinforced concrete base plates (1). The impermeable plate (2) includes a middle section (202), a first edge section (201) and a second edge section (203) located on both sides of the middle section (202). The first edge section (201) and the second edge section (203) are respectively embedded in the two reinforced concrete base plates (1). The middle section (202) has a wavy structure.

2. The white liquor brewing vinasse yard anti-leakage structure according to claim 1, characterized in that, The bottom of the protective layer is provided with an impermeable layer (3), and a pebble filtrate drainage layer (4) is provided between the protective layer and the impermeable layer (3).

3. The white liquor brewing vinasse yard anti-leakage structure according to claim 2, characterized in that, The bottom of the impermeable layer (3) is provided with a compacted clay layer (5), and the impermeable layer (3) is set at an angle.

4. The seepage-proof structure for a liquor brewing lees storage yard according to claim 2, characterized in that, The impermeable layer (3) includes, from top to bottom, a nonwoven geotextile protective layer (301), a high-density polyethylene geomembrane layer (302), and a bentonite waterproof blanket layer (303).

5. The seepage-proof structure for a liquor brewing lees storage yard according to claim 2, characterized in that, A crushed stone layer (6) is provided between the pebble filtrate drainage layer (4) and the protective layer.

6. The seepage-proof structure for a liquor brewing lees storage yard according to claim 5, characterized in that, A plain concrete cushion layer (7) is provided between the aggregate crushed stone layer (6) and the protective layer.

7. The seepage-proof structure for a liquor brewing lees storage yard according to claim 1, characterized in that, The thickened layer is a concrete thickened layer, and the thickness of the thickened layer is 2-3 cm.

8. The seepage-proof structure for a liquor brewing lees storage yard according to claim 1, characterized in that, The cross-shaped gaps between the four adjacent reinforced concrete base plates (1) are filled with cross-shaped flexible sealant (8), and the flexible sealant (8) is bonded and fixed to the top surface of the anti-seepage board (2).

9. A seepage-proof structure for a liquor brewing lees storage yard according to claim 8, characterized in that, The flexible sealant (8) is a silicone sealant.

10. A seepage-proof structure for a liquor brewing lees storage yard according to claim 1, characterized in that, The impermeable plate (2) is a stainless steel plate.

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