A wet sand making water control and leak-proof hopper
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-14
AI Technical Summary
建筑用砂（尤其是混凝土用砂）对含水率有严格标准（如《建筑用砂》GB/T14684-2022规定，干砂含水率≤0.5%，湿砂含水率宜控制在3%-5%），控水是确保砂料质量达标的核心手段：避免含水率超标导致的质量缺陷若成品砂含水率过高（如＞8%），储存时易出现“结块”“搭桥”现象，导致后续配料时砂量计量不准（如混凝土配比中砂量偏少，会降低混凝土强度）；含水率波动过大，会直接影响混凝土、干混砂浆的工作性（如含水率过高易导致混凝土离析、泌水，过低则需额外加水调整，破坏配比稳定性）
[0010]本实用新型的有益效果在于：当插板阀关闭料斗，水洗砂料储存在料斗中，其含有的水分在重力的作用下，经滤水孔被吸水滤棉过滤进入环形导水槽，再经滤网过滤，由出水孔和出水管排出，实现防漏砂，降低砂中含水率的目的，避免“结块”、“搭桥”现象的情况发生，使得后续配料时砂量计量准确，保证混凝土强度，保持混凝土、干混砂浆的工作性。
Smart Images
Figure CN224632346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ore processing equipment, specifically a wet sand making water control and leak-proof hopper. Background Technology
[0002] In wet sand making, "water control" is a crucial link connecting sand making, sand washing, and subsequent finished product storage, transportation, and application. Its necessity permeates the entire process, including ensuring sand quality, improving production efficiency, controlling costs, and adapting to downstream applications. Construction sand (especially concrete sand) has strict standards for moisture content (e.g., GB / T14684-2022, "Construction Sand," stipulates that dry sand moisture content should be ≤0.5%, and wet sand moisture content should be controlled between 3% and 5%). Water control is the core means to ensure sand quality meets standards: avoiding quality defects caused by excessive moisture content. If the finished sand moisture content is too high (e.g., >8%), "caking" and "bridging" phenomena are likely to occur during storage, leading to inaccurate sand measurement during subsequent batching (e.g., insufficient sand in concrete mix will reduce concrete strength); excessive moisture content fluctuations will directly affect the workability of concrete and dry-mixed mortar (e.g., excessively high moisture content can easily lead to concrete segregation and bleeding, while excessively low moisture content requires additional water adjustment, disrupting mix stability). The existing hopper structure is too heavy due to the sand-water mixture, which seriously affects the operation of the conveyor belt. A large amount of sand-water mixture will overflow on the site, which is inconvenient to clean up. There is an urgent need for a hopper that can control water and prevent sand leakage. Utility Model Content
[0003] The purpose of this utility model is to solve the existing problems by providing a wet sand making water control and leak-proof hopper.
[0004] The technical solution of this utility model is as follows:
[0005] A wet sand making water control and leakage prevention hopper, the hopper having a hopper body, an annular water guide groove is inclinedly arranged on the outer side of the outlet of the hopper body, a plurality of water filter holes are opened on the inner wall of the hopper body corresponding to the annular water guide groove, a filter screen is fixed at the bottom of the annular water guide groove, water-absorbing filter cotton is arranged above the filter screen, a pressing component is arranged above the water-absorbing filter cotton, and a water outlet hole is opened at the lowest point of the annular water guide groove, the water outlet hole is connected to a water outlet pipe.
[0006] Preferably, the slope of the annular water guide channel is 0.5°.
[0007] Preferably, the top edge of the bucket body is provided with an upper flange, and the bottom edge is provided with a lower flange.
[0008] Preferably, a wear-resistant plate is fixed on the inner wall of the bucket body.
[0009] Preferably, the clamping assembly includes a pressure strip, a clamping plate, and a clamping bolt. The pressure strip is attached to the surface of the absorbent filter cotton, the clamping plate is sleeved on the outside of the annular water guide groove, and the clamping bolt is screwed to the top surface of the clamping plate and abuts against the pressure strip.
[0010] The beneficial effects of this utility model are as follows: when the slide valve closes the hopper, the washed sand is stored in the hopper. Under the action of gravity, the water it contains is filtered through the filter holes by the absorbent filter cotton and enters the annular water guide groove. After being filtered by the filter screen, it is discharged through the water outlet and the water outlet pipe, which achieves the purpose of preventing sand leakage and reducing the water content in the sand, avoiding the occurrence of "clumping" and "bridging" phenomena, so that the sand quantity is accurately measured during subsequent batching, ensuring the strength of concrete and maintaining the workability of concrete and dry-mixed mortar. Attached Figure Description
[0011] Figure 1 This is a front view schematic diagram of the hopper and slide gate valve of this utility model;
[0012] Figure 2 This is a three-dimensional schematic diagram of the hopper of this utility model;
[0013] Figure 3 This is a half-sectional schematic diagram of the hopper of this utility model;
[0014] Figure 4 for Figure 3 Enlarged view of part A;
[0015] In the attached diagram: 1. Hopper; 2. Slide valve; 3. Hopper body; 4. Annular water guide groove; 5. Filter hole; 6. Filter screen; 7. Water-absorbing filter cotton; 8. Pressing assembly; 9. Water outlet; 10. Upper flange; 11. Lower flange; 12. Wear-resistant plate; 13. Pressure strip; 14. Clamping plate; 15. Pressing bolt. Detailed Implementation
[0016] 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.
[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0018] 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 utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0021] like Figure 1-4As shown, a wet sand making water control and leakage prevention hopper is provided. The hopper 1 has a hopper body 3. An annular water guide groove 4 is inclinedly arranged on the outer side of the outlet of the hopper body 3. A plurality of water filter holes 5 are opened on the inner wall of the hopper body 3 corresponding to the annular water guide groove 4. A filter screen 6 is fixed at the bottom of the annular water guide groove 4. A water-absorbing filter cotton 7 is arranged above the filter screen 6. A pressing component 8 is arranged above the water-absorbing filter cotton 7. A water outlet hole 9 is opened at the lowest point of the annular water guide groove 4. The water outlet hole 9 is connected to a water outlet pipe.
[0022] Specifically, the slope of the annular water guide channel 4 is 0.5°, and the water outlet 9 is located at the lowest point of the annular water guide channel 4, which is conducive to the rapid and automatic discharge of accumulated water.
[0023] Specifically, the top edge of the bucket body 3 is provided with an upper flange 10, and the bottom edge is provided with a lower flange 11.
[0024] Specifically, a wear-resistant plate 12 is fixed on the inner wall of the bucket body 3.
[0025] Specifically, the clamping assembly 8 includes a pressure strip 13, a clamping plate 14, and a clamping bolt 15. The pressure strip 13 fits against the surface of the absorbent filter cotton 7, the clamping plate 14 is sleeved on the outside of the annular water guide groove 4, and the clamping bolt 15 is screwed to the top surface of the clamping plate 14 and abuts against the pressure strip 13. This arrangement is used to install and position the absorbent filter cotton 7, which is convenient for later replacement.
[0026] The hopper 1 and the slide valve 2 are used together. The slide valve 2 is used to open and close the outlet of the hopper 1. When the slide valve 2 closes the hopper 1, the washed sand is stored in the hopper 1. The water contained in the sand is filtered by the water-absorbing filter cotton 7 through the water filter hole 5 under the action of gravity and enters the annular water guide groove 4. It is then filtered by the filter screen 6 and discharged through the water outlet hole 9 and the water outlet pipe. This achieves the purpose of preventing sand leakage and reducing the moisture content in the sand, avoiding the occurrence of "clumping" and "bridging" phenomena, so that the sand quantity is accurately measured during subsequent batching, ensuring the strength of concrete and maintaining the workability of concrete and dry-mixed mortar.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wet sand manufacturing water control leakproof hopper, characterized in that: The hopper has a hopper body, and an annular water guide groove is inclinedly arranged on the outer side of the outlet of the hopper body. A plurality of water filter holes are opened on the inner wall of the hopper body corresponding to the annular water guide groove. A filter screen is fixed at the bottom of the annular water guide groove, and water-absorbing filter cotton is arranged above the filter screen. A pressing component is arranged above the water-absorbing filter cotton. A water outlet hole is opened at the lowest point of the annular water guide groove, and the water outlet hole is connected to a water outlet pipe.
2. The wet method sand manufacturing water leakage prevention hopper according to claim 1, wherein: The slope of the annular water guide channel is 0.5°.
3. The wet method sand manufacturing water leakage prevention hopper according to claim 1, characterized in that: The top edge of the bucket body is provided with an upper flange, and the bottom edge is provided with a lower flange.
4. The wet method sand manufacturing water leakage prevention hopper according to claim 1, characterized in that: Wear-resistant plates are fixed to the inner wall of the bucket.
5. The wet method sand manufacturing water leakage prevention hopper according to claim 1, wherein: The clamping assembly includes a pressure strip, a clamping plate, and a clamping bolt. The pressure strip is attached to the surface of the absorbent filter cotton, the clamping plate is sleeved on the outside of the annular water guide groove, and the clamping bolt is screwed to the top surface of the clamping plate and abuts against the pressure strip.