Efficient purification equipment for calcium hydroxide production wastewater
Patent Information
- Application Number
- CN202521897674.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-04
AI Technical Summary
[0003]在对其废水进行处理过程中存在一些不足，传统氢氧化钙生产废水净化设备的滤网拆卸过程繁琐，需借助工具拆卸多个螺栓，耗时费力且易导致滤网破损，影响废水处理效率，同时，滤网长期使用后堵塞难以快速清理，需停机维护，增加设备运行成本，难以满足环保要求和企业的生产需求，为此，我们提出一种氢氧化钙生产用废水高效净化设备解决上述问题
本装置通过旋转驱动柄带动丝杆转动，方螺纹板沿滑动柱平移，定位插杆从定位筒中脱离，即可卸下连接板及过滤件，相比传统螺栓固定方式，大大提高拆卸效率，维护时无需停机过长时间，确保废水处理流程连续运行，实现了快速便捷的拆卸滤网，提升维护效率，通过预处理箱内的搅拌机构通过打散杆和搅拌叶混合废水与药剂，方格栅拦截大颗粒杂质，减轻滤网负担，满足环保要求和企业的生产需求。
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Figure CN224832414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calcium hydroxide wastewater treatment, and in particular to a high-efficiency purification device for wastewater from calcium hydroxide production. Background Technology
[0002] Calcium hydroxide can be produced by reacting calcium oxide with water in a carbon dioxide-free environment, or by reacting calcium salts (such as calcium nitrate) with strong bases (such as potassium hydroxide) in a carbon dioxide-free environment, followed by filtration and drying. Calcium hydroxide can be used to manufacture cement and furnace linings, and is used as a binding material in the construction industry. During the production of calcium hydroxide, a large amount of wastewater is generated. This wastewater usually contains high concentrations of calcium ions, suspended solids, alkaline substances, and small amounts of heavy metal ions.
[0003] There are some shortcomings in the treatment of wastewater from calcium hydroxide production. The filter screen disassembly process of traditional calcium hydroxide production wastewater purification equipment is cumbersome, requiring the use of tools to remove multiple bolts, which is time-consuming, labor-intensive, and prone to filter screen damage, affecting wastewater treatment efficiency. At the same time, the filter screen becomes clogged after long-term use and is difficult to clean quickly, requiring downtime for maintenance, increasing equipment operating costs, and failing to meet environmental protection requirements and enterprise production needs. Therefore, we propose a high-efficiency wastewater purification equipment for calcium hydroxide production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency wastewater purification device for calcium hydroxide production, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency wastewater purification device for calcium hydroxide production includes a pretreatment tank. A filter box is fixedly connected to the right side of the pretreatment tank. A square grid and a stirring mechanism are fixedly connected to the inner wall of the pretreatment tank. A connecting plate is provided above the filter box. A filter element is fixedly installed on the bottom surface of the connecting plate. Two positioning cylinders are fixedly connected to the upper surface of the connecting plate. A fixing box is fixedly connected to the outer surface of the filter box. A lead screw is rotatably connected to the inner wall of the fixing box via a bearing. A square threaded plate is threaded to the outer surface of the lead screw. Both ends of the square threaded plate extend to the outside of the fixing box. Two positioning rods are fixedly connected to the outer surface of the square threaded plate. A drive handle is fixedly connected to one end of the lead screw. A drain pipe is fixedly connected to the right side of the filter box.
[0006] In a further embodiment, a pump body is fixedly installed on the upper surface of the filter box, and the input end of the pump body is connected to the pretreatment box through a conduit.
[0007] In a further embodiment, the filter element includes a quartz sand filter media layer fixedly installed on the bottom surface of the connecting plate, and an activated carbon adsorption layer is fixedly installed on the bottom surface of the connecting plate.
[0008] In a further embodiment, a base plate with an opening is fixedly connected to the bottom surface of the pretreatment box, a liquid dosing hopper is provided on the upper surface of the pretreatment box, a square cover plate is fixedly installed on the upper surface of the pretreatment box, and a dosing tube is fixedly embedded on the left side of the pretreatment box.
[0009] In a further embodiment, the stirring mechanism includes a rotary motor fixedly installed on the left side of the pretreatment tank. The output end of the rotary motor is fixedly connected to a circular shaft, and the outer surface of the circular shaft is fixedly connected to a plurality of dispersing rods and a plurality of stirring blades.
[0010] In a further embodiment, the inner wall of the fixed box is fixedly connected to two sliding columns, the square threaded plate is slidably connected to the two sliding columns, and the outer surface of the fixed box is provided with an opening adapted to the square threaded plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This device uses a rotating drive handle to rotate a lead screw, causing the square threaded plate to slide along a sliding column. The positioning rod then disengages from the positioning cylinder, allowing the connecting plate and filter components to be removed. Compared to traditional bolt fixing methods, this significantly improves disassembly efficiency and eliminates the need for prolonged downtime during maintenance, ensuring continuous operation of the wastewater treatment process. It also enables quick and convenient removal of the filter screen, enhancing maintenance efficiency. The mixing mechanism within the pretreatment tank mixes wastewater and chemicals using a dispersing rod and stirring blades. The square grid intercepts large particles of impurities, reducing the burden on the filter screen and meeting environmental protection requirements and the production needs of enterprises. Attached Figure Description
[0012] Figure 1 A frontal three-dimensional structural diagram of a high-efficiency wastewater purification equipment for calcium hydroxide production; Figure 2 A side view schematic diagram of a high-efficiency wastewater purification equipment for calcium hydroxide production; Figure 3 A top-section schematic diagram of the fixed box in a high-efficiency wastewater purification device for calcium hydroxide production; Figure 4 This is a schematic diagram of the front section of the pretreatment tank in a high-efficiency purification equipment for wastewater from calcium hydroxide production.
[0013] In the diagram: 1. Pretreatment box; 2. Plate with opening; 3. Filter box; 4. Dosing pipe; 5. Liquid dosing hopper; 6. Square cover plate; 7. Drain pipe; 8. Stirring mechanism; 81. Rotary motor; 82. Circular shaft; 83. Dispersing rod; 84. Stirring blade; 9. Square grid; 10. Connecting plate; 11. Filter element; 111. Quartz sand filter media layer; 112. Activated carbon adsorption layer; 12. Positioning cylinder; 13. Pump body; 14. Fixing box; 15. Lead screw; 16. Drive handle; 17. Square threaded plate; 18. Positioning rod; 19. Sliding column. Detailed Implementation
[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., 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.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.
[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] Please see Figure 1-4In this utility model, a high-efficiency wastewater purification device for calcium hydroxide production includes a pretreatment tank 1. A filter tank 3 is fixedly connected to the right side of the pretreatment tank 1. A square grid 9 and a stirring mechanism 8 are fixedly connected to the inner wall of the pretreatment tank 1. A connecting plate 10 is provided above the filter tank 3. A filter element 11 is fixedly installed on the bottom surface of the connecting plate 10. Two positioning cylinders 12 are fixedly connected to the upper surface of the connecting plate 10. A fixing box 14 is fixedly connected to the outer surface of the filter tank 3. A lead screw 15 is rotatably connected to the inner wall of the fixing box 14 through a bearing. The outer surface of the lead screw 15 is threaded. There is a square threaded plate 17, with both the front and rear ends of the square threaded plate 17 extending to the outside of the fixed box 14. Two positioning rods 18 are fixedly connected to the outer surface of the square threaded plate 17. One end of the screw 15 is fixedly connected to the drive handle 16. The right side of the filter box 3 is fixedly connected to the drain pipe 7. The filter element 11 is quickly positioned and disassembled through the transmission structure of the screw 15 and the square threaded plate 17. The drain pipe 7 discharges the purified wastewater. The pretreatment box 1 and the filter box 3 work together to improve the purification efficiency. The wastewater passes through the square grid 9, which can initially intercept and remove large particulate impurities to facilitate subsequent wastewater treatment.
[0018] A pump body 13 is fixedly installed on the upper surface of the filter box 3. The input end of the pump body 13 is connected to the pretreatment box 1 through a conduit. The pump body 13 pressurizes and delivers the pretreated wastewater to the filter box 3, ensuring that the wastewater passes through the filter screen at a certain pressure, thereby increasing the filtration speed and avoiding low treatment efficiency due to gravity flow. The filter element 11 includes a quartz sand filter media layer 111 fixedly installed on the bottom surface of the connecting plate 10. An activated carbon adsorption layer 112 is fixedly installed on the bottom surface of the connecting plate 10. The quartz sand filter media layer 111 has a particle size of 0.5-1mm, effectively intercepting particles in the wastewater, while the activated carbon adsorption layer 112 can adsorb heavy metal ions such as lead, cadmium, and phenol. The double-layer structure of the pretreatment tank significantly reduces the heavy metal content of the purified wastewater. A base plate 2 with an opening is fixedly connected to the bottom of the pretreatment tank 1. A dosing hopper 5 is installed on the upper surface of the pretreatment tank 1, and a square cover plate 6 is fixedly installed on the upper surface of the pretreatment tank 1. A dosing pipe 4 is fixedly embedded on the left side of the pretreatment tank 1. The base plate 2 with an opening facilitates the fixing of the equipment to the concrete ground. The dosing hopper 5 allows for the batch addition of wastewater. The square cover plate 6 prevents wastewater splashing and also facilitates the opening of the square cover plate 6 to clean debris intercepted on the square screen 9. The dosing pipe 4 allows for the precise addition of flocculants such as PAC. The pretreatment stage treats the wastewater with chemicals, reducing the load on the filter screen.
[0019] The stirring mechanism 8 includes a rotary motor 81 fixedly installed on the left side of the pretreatment box 1. The output end of the rotary motor 81 is fixedly connected to a circular shaft 82. Multiple dispersing rods 83 and multiple stirring blades 84 are fixedly connected to the outer surface of the circular shaft 82. The dispersing rods 83 of the stirring mechanism 8 break up the clumps of impurities in the wastewater, and the stirring blades 84 drive the wastewater to circulate, so that the agent and the wastewater are fully mixed, greatly improving the utilization rate of the agent. Two sliding columns 19 are fixedly connected to the inner wall of the fixed box 14. The square threaded plate 17 is slidably connected to the two sliding columns 19. The outer surface of the fixed box 14 has an opening that matches the square threaded plate 17. The sliding fit between the sliding column 19 and the square threaded plate 17 ensures that the positioning rod 18 does not deviate when it moves, improves the positioning accuracy, avoids the rod from getting stuck with the positioning cylinder 12, and does not require extra force when disassembling, thus protecting the filter screen from damage.
[0020] The working principle of this utility model is as follows: Calcium hydroxide wastewater can be added to the pretreatment tank 1 through the dosing hopper 5, and a certain amount of reagent can be added through the dosing pipe 4. The stirring mechanism 8 stirs the wastewater that has been initially filtered by the square grid 9 at a certain speed. After the wastewater and the reagent are mixed for a period of time, the wastewater is transported from the pretreatment tank 1 to the filter tank 3 by the pump body 13. The wastewater passes through the filter element 11 quickly under pressure. The quartz sand filter layer 111 intercepts the suspended particles in the wastewater, and the activated carbon adsorption layer 112 removes heavy metal ions and organic pollutants. The double-layer filtration enables the wastewater to be purified. When the filter element 11 needs to be disassembled, the operator rotates the drive handle 16 to rotate, causing the lead screw 15 to move the square thread plate 17 backward under the action of the thread, and the positioning rod 18 is completely disengaged from the positioning cylinder 12. Then, the connecting plate 10 is lifted upward to remove the filter screen. After replacing the new filter screen, the drive handle 16 is rotated in the opposite direction, and the positioning rod 18 is inserted into the positioning cylinder 12 for fixation, which greatly improves the disassembly efficiency and ensures the continuous operation of the wastewater treatment process.
[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-efficiency wastewater purification device for calcium hydroxide production, characterized in that: The pretreatment box (1) is fixedly connected to the right side of the pretreatment box (1). A square grid (9) and a stirring mechanism (8) are fixedly connected to the inner wall of the pretreatment box (1). A connecting plate (10) is provided above the filter box (3). A filter element (11) is fixedly installed on the bottom surface of the connecting plate (10). Two positioning cylinders (12) are fixedly connected to the upper surface of the connecting plate (10). A fixing box (14) is fixedly connected to the outer surface of the filter box (3). A lead screw (15) is rotatably connected to the inner wall of the fixing box (14) through a bearing. A square thread plate (17) is threadedly connected to the outer surface of the lead screw (15). Both ends of the square thread plate (17) extend to the outside of the fixing box (14). Two positioning rods (18) are fixedly connected to the outer surface of the square thread plate (17). A drive handle (16) is fixedly connected to one end of the lead screw (15). A drain pipe (7) is fixedly connected to the right side of the filter box (3).
2. The high-efficiency wastewater purification equipment for calcium hydroxide production according to claim 1, characterized in that: A pump body (13) is fixedly installed on the upper surface of the filter box (3), and the input end of the pump body (13) is connected to the pretreatment box (1) through a conduit.
3. The high-efficiency wastewater purification equipment for calcium hydroxide production according to claim 1, characterized in that: The filter element (11) includes a quartz sand filter media layer (111) fixedly installed on the bottom surface of the connecting plate (10), and an activated carbon adsorption layer (112) fixedly installed on the bottom surface of the connecting plate (10).
4. The high-efficiency wastewater purification equipment for calcium hydroxide production according to claim 1, characterized in that: The bottom surface of the pretreatment box (1) is fixedly connected to a base plate (2) with an opening, the upper surface of the pretreatment box (1) is provided with a liquid dosing hopper (5), the upper surface of the pretreatment box (1) is fixedly installed with a square cover plate (6), and the left side of the pretreatment box (1) is fixedly embedded with a dosing tube (4).
5. The high-efficiency wastewater purification equipment for calcium hydroxide production according to claim 1, characterized in that: The stirring mechanism (8) includes a rotary motor (81) fixedly installed on the left side of the pretreatment box (1). The output end of the rotary motor (81) is fixedly connected to a circular shaft (82). The outer surface of the circular shaft (82) is fixedly connected to a plurality of dispersing rods (83) and a plurality of stirring blades (84).
6. The high-efficiency wastewater purification equipment for calcium hydroxide production according to claim 1, characterized in that: The inner wall of the fixed box (14) is fixedly connected to two sliding columns (19), and the square thread plate (17) is slidably connected to the two sliding columns (19). The outer surface of the fixed box (14) is provided with an opening that is compatible with the square thread plate (17).