System for preparing alpha-type high-strength gypsum from attapulgite associated gypsum
By designing a continuous production system, the problem of preparing high-strength gypsum from attapulgite-associated gypsum was solved, realizing efficient and low-cost production of α-type high-strength gypsum, thereby improving product quality and enterprise competitiveness.
Patent Information
- Application Number
- CN202422903918.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing technologies are difficult to effectively utilize attapulgite-associated gypsum to prepare high-strength gypsum, resulting in low production efficiency, high costs, and complex equipment, making industrial-scale production difficult.
Design a continuous production system that includes equipment such as storage silos, crushing devices, screening devices, drying and dehydration devices, crystal converters, and ball mills. Through continuous crushing, precise screening, and crystal conversion process control, achieve efficient utilization of raw materials and energy recovery.
It has improved production efficiency, reduced production costs and energy consumption, enhanced product quality and corporate competitiveness, and achieved efficient preparation of attapulgite-associated gypsum.
Smart Images
Figure CN223576368U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building materials, and concretely relates to a system for preparing alpha type high-strength gypsum with attapulgite associated gypsum. BACKGROUND
[0002] Gypsum is a truly green, low-carbon, environmentally friendly cementitious material, which can be recycled, and is known as one of the three inorganic cementitious materials together with lime and cement, and has a long application history. The earliest human beings found that gypsum has cementitious property after heating it by accident, and then processed it into cementitious material for use in the construction industry. In ancient China, gypsum was used as one of the medicinal materials by traditional Chinese medicine. At present, gypsum can be processed into high-strength gypsum, building gypsum, gypsum whisker and other products according to different purposes, and is applied in the fields of precision casting, medicine, pottery, rubber and papermaking, etc. It can be seen that the application range of gypsum is quite wide, and it has important economic and social status.
[0003] At present, the raw material mainly used for producing high-strength gypsum is high-purity gypsum, and the production processes mainly include traditional autoclaved process, pressurized hydrothermal process and atmospheric solution process. The traditional autoclaved process is a method commonly used in China at present, which generally uses blocky gypsum as raw material, heats it in a stationary autoclave, and then dehydrates, crystallizes, dries and grinds to form a product. The production cycle is as long as 18h-20h, the production efficiency is low, the yield and quality are poor, and the compressive strength is generally 25MPa-30MPa. The pressurized hydrothermal process is derived from Europe, which processes blocky gypsum into powder, or directly uses desulfurization gypsum, adds it into a solution mixed with an additive, and then autoclaves, dehydrates, crystallizes, dries and grinds to form a product. The process is complex, the equipment investment is large, the waste water treatment amount is large, and the production cost is high, but the product quality is good, and the compressive strength can reach 60MPa. The atmospheric solution process adds gypsum powder into a hydrochloric acid solution, and then dehydrates and crystallizes under atmospheric pressure. Since the hydrochloric acid solution has strong corrosiveness to equipment and the product has poor stability, it is difficult to realize industrialized production.
[0004] The associated gypsum has the characteristics of high attached water content and small particle size, and it is difficult to prepare high-strength gypsum therefrom. Therefore, it is an urgent technical problem for those skilled in the art to provide a system for preparing alpha type high-strength gypsum with attapulgite associated gypsum. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to solve at least one of the above technical problems in the prior art to some extent.
[0006] To this end, one object of the utility model is to provide a system for preparing alpha type high-strength gypsum with attapulgite associated gypsum, which comprises a storage bin, a crushing device, a screening device, a first drying and dehydrating device, a crystal converter, a second drying and dehydrating device, an intermediate bin and a finished product bin.
[0007] The storage bin, the crushing device, the screening device, the first drying and dewatering device, the crystal transformation device, the second drying and dewatering device, the intermediate bin and the finished product bin are sequentially connected through a conveying belt.
[0008] The crystal transformation device is further provided with a crystal transformation liquid spraying device and a water adding device, both of which are connected with the crystal transformation device through pipelines.
[0009] Preferably, the crushing device is a continuous-stage crushing device.
[0010] More preferably, the continuous-stage crushing device is provided with a plurality of crushers.
[0011] The plurality of crushers are sequentially connected in series through a conveying belt.
[0012] The above further scheme has the beneficial effects that the connection of the storage bin, the continuous-stage crushing device, the screening device, the drying and dewatering device, the crystal transformation device and the finished product bin realizes the continuous and automatic production from raw materials to finished products, and effectively improves the production efficiency. The continuous-stage crushing device is provided to ensure the sufficient crushing of raw materials through the series connection of a plurality of crushers, and provides a uniform particle basis for subsequent processing.
[0013] Preferably, the screening device is provided with a screening plate, and the aperture of the screening plate is 0.2-2mm.
[0014] More preferably, the screening plate includes a first screening plate and a second screening plate.
[0015] The first screening plate is fixed directly above the second screening plate, and the aperture of the first screening plate is larger than that of the second screening plate.
[0016] More preferably, the oversize of the first screening plate is conveyed to the crushing device through a conveying belt.
[0017] The oversize of the second screening plate is conveyed to the first drying and dewatering device through a conveying belt.
[0018] The above further scheme has the beneficial effects that the screening device in the present application is provided with a screening plate with an aperture of 0.2-2mm, and is divided into a first screening plate and a second screening plate. The design of the two-layer screening plates can more accurately control the particle size and ensure that the gypsum particles entering the subsequent processing stage meet the requirements. At the same time, the backflow treatment of the oversize further improves the utilization rate of raw materials and the product quality.
[0019] Preferably, a ball mill device is further arranged between the second drying and dewatering device and the intermediate bin.
[0020] The ball mill device is arranged in the application, and the fineness of the product can be adjusted according to requirements, so that the flexibility and adaptability of the product are increased, and the requirements of different customers on the fineness of the gypsum product are met.
[0021] Preferably, the crystal transformation device is internally provided with a stirring device.
[0022] The stirring device is horizontally arranged in the crystal transformation device and connected with the motor of the crystal transformation device.
[0023] The crystal transformation liquid spraying device and the water adding device arranged on the crystal transformation device can effectively promote the crystal transformation of the gypsum by precisely controlling the liquid and water during the crystal transformation process, so that the preparation efficiency and product quality of the alpha-type high-strength gypsum are improved.
[0024] Further, the stirring device comprises a stirring shaft and stirring blades.
[0025] The stirring blades are fixed on the stirring shaft, and a plurality of stirring blades are uniformly distributed on the stirring shaft.
[0026] Further, each stirring blade comprises at least three blades, and the included angle of any two adjacent blades on each stirring blade is the same.
[0027] The blades are scraper blades.
[0028] The special stirring device can effectively improve the crystal transformation rate and thus improve the production efficiency.
[0029] Further, the crystal transformation device is internally coated with a polytetrafluoroethylene layer.
[0030] The inlet of the crystal transformation device is provided with a check valve.
[0031] The water adding device comprises a liquid adding bin and a pressurizing bin, and a check valve is arranged at the interface between the water adding device and the crystal transformation device.
[0032] The crystal transformation liquid spraying device is provided with a check valve at the interface between the crystal transformation liquid spraying device and the crystal transformation device.
[0033] The crystal transformation device has the following beneficial effects:
[0034] The whole system of the present application realizes efficient utilization of raw materials and effective recovery of energy by optimizing equipment configuration and process design, reduces production cost and energy consumption, and improves economic benefit and environmental benefit of enterprises. The system for preparing alpha-type high-strength gypsum from attapulgite associated gypsum provided by the present application exhibits significant beneficial effects in many aspects, not only improves production efficiency and product quality, but also enhances the flexibility and adaptability of products, while reducing production cost and energy consumption and the impact on the environment, and improves the image and market competitiveness of enterprises. These advantages make the system have broad application prospect and market potential in the field of gypsum preparation. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.
[0036] Figure 1 The accompanying drawings are schematic structural diagrams of the system for preparing alpha-type high-strength gypsum from attapulgite associated gypsum provided by the present application.
[0037] In the drawings, the structure list represented by each reference numeral is as follows: 1-stored bin, 2-pulverizing device, 3-screening device, 4-first drying and dewatering device, 5-crystal converter, 6-second drying and dewatering device, 7-intermediate bin, 8-finished product bin, 9-ball milling device;
[0038] 31-first screening plate, 32-second screening plate, 51-crystal conversion liquid spraying device, 52-water adding device, 53-agitating device. DETAILED DESCRIPTION
[0039] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0041] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, features referring to "first", "second" etc. can include one or more of the features, explicitly or implicitly.
[0042] In the present application, unless specifically defined otherwise, the terms "mounting", "connection", "connecting", "fixed", and the like are to be construed broadly, for example, they can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate media, or the communication or interaction between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0043] In the present application, unless specifically defined otherwise, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0044] A system for preparing alpha-type high-strength gypsum from attapulgite associated gypsum, comprising: a storage bin 1, a crushing device 2, a screening device 3, a first drying and dewatering device 4, a crystal transformation device 5, a second drying and dewatering device 6, an intermediate bin 7 and a finished product bin 8.
[0045] Among them, the storage bin 1, the crushing device 2, the screening device 3, the first drying and dewatering device 4, the crystal transformation device 5, the second drying and dewatering device 6, the intermediate bin 7 and the finished product bin 8 are connected in turn through the conveying belt.
[0046] The crystal transformation device 5 is further provided with a crystal transformation liquid spraying device 51 and a water adding device 52, and the crystal transformation liquid spraying device 51 and the water adding device 52 are connected with the crystal transformation device through pipelines.
[0047] In some embodiments, the crushing device 2 is a continuous stage crushing device.
[0048] In other embodiments, the continuous stage crushing device is provided with a plurality of crushers.
[0049] The several pulverizers are connected in series by a conveying belt.
[0050] In some embodiments, the screening device 3 is provided with a screening plate with a pore size of 0.2-2 mm.
[0051] In other embodiments, the screening plate includes a first screening plate 31 and a second screening plate 32.
[0052] The first screening plate 31 is fixed directly above the second screening plate 32, and the pore size of the first screening plate 31 is larger than that of the second screening plate 32.
[0053] In other embodiments, the oversize of the first screening plate 31 is conveyed to the pulverizing device 2 by a conveying belt.
[0054] The oversize of the second screening plate 32 is conveyed to the first drying and dewatering device 4 by a conveying belt.
[0055] In some embodiments, a ball milling device 9 is further provided between the second drying and dewatering device 6 and the intermediate bin 7.
[0056] In some embodiments, the crystallization converter 5 is provided with a stirring device 53.
[0057] The stirring device 53 is horizontally arranged inside the crystallization converter 5 and connected to the motor of the crystallization converter 5.
[0058] In some embodiments, the stirring device 53 includes a stirring shaft and stirring blades.
[0059] The stirring blades are fixed on the stirring shaft, and there are several stirring blades, which are evenly distributed on the stirring shaft.
[0060] In other embodiments, each stirring blade includes at least three blades, and the included angle of any two adjacent blades on each stirring blade is the same.
[0061] The blades are scraper blades.
[0062] In some embodiments, the crystallization converter 5 is coated with a polytetrafluoroethylene layer inside.
[0063] The inlet of the crystallization converter 5 is provided with a check valve.
[0064] The water adding device 52 includes a liquid adding bin and a pressurizing bin, and the interface between the water adding device 52 and the crystallization converter 5 is provided with a check valve.
[0065] The interface between the crystallization liquid spraying device 51 and the crystallization converter 5 is provided with a check valve.
[0066] The utility model discloses a scheme, the attapulgite associated gypsum is transported to the smashing device from the storage bin, and the continuous smashing is screened after the screening device, and the first screening board sieve returns the smashing device to the second screening board sieve, and the crystallization water is dried and removed through the first drying dehydration device, then the metacryl agent is added in the metacryl device and who carries out metacryl, and then the water is removed through the second drying dehydration device after metacryl, and then the target product granularity is obtained through the ball mill, and then in turn through the intermediate bin and finished product bin, and the storage is carried out in the finished product bin.
[0067] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.
[0068] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.
Claims
1. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum, characterized in that, The application relates to a crystal transformation device. The device comprises a storage bin, a crushing device, a screening device, a first drying and dewatering device, a crystal transformation device, a second drying and dewatering device, an intermediate bin and a finished product bin. The storage bin, the crushing device, the screening device, the first drying and dewatering device, the crystal transformation device, the second drying and dewatering device, the intermediate bin and the finished product bin are sequentially connected through a conveying belt. The crystal transformation device is further provided with a crystal transformation liquid spraying device and a water adding device, and the crystal transformation liquid spraying device and the water adding device are connected with the crystal transformation device through pipelines.
2. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum according to claim 1, characterized in that, The crushing device is a continuous-stage crushing device.
3. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum according to claim 2, characterized in that, The continuous-stage crushing device is provided with a plurality of crushers. The plurality of crushers are sequentially connected through a conveying belt.
4. A system for preparing high strength gypsum of alpha type using pisolitic associated gypsum according to claim 1, characterized in that, The screening device is provided with a screening plate, and the aperture of the screening plate is 0.2-2 mm.
5. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum according to claim 4, characterized in that, The screening plate comprises a first screening plate and a second screening plate. The first screening plate is fixed above the second screening plate, and the aperture of the first screening plate is larger than that of the second screening plate.
6. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum according to claim 5, characterized in that, The oversize of the first screening plate is conveyed to the crushing device through a conveying belt. The oversize of the second screening plate is conveyed to the first drying and dewatering device through a conveying belt.
7. A system for preparing high strength gypsum of alpha type using pisolitic associated gypsum according to claim 1, characterized in that, A ball mill device is further arranged between the second drying and dewatering device and the intermediate bin.
8. A system for preparing high strength gypsum of alpha type using pisolitic associated gypsum according to claim 1, characterized in that, The crystal transformation device is provided with a stirring device. The stirring device is horizontally arranged in the crystal transformation device and is connected with a motor of the crystal transformation device. The stirring device comprises a stirring shaft and stirring blades. The stirring blades are fixed on the stirring shaft, and a plurality of stirring blades are uniformly distributed on the stirring shaft.
9. A system for preparing high strength gypsum of alpha type from palygorskite associated gypsum according to claim 8, characterized in that, Each stirring blade comprises at least three blades, and the included angle of any two adjacent blades on each stirring blade is the same. The blades are scraper blades.
10. A system for preparing high strength gypsum of alpha type using pisolitic associated gypsum according to claim 1, characterized in that, The crystal transformation device is coated with a polytetrafluoroethylene layer. The inlet of the crystal transformation device is provided with a non-return sealing valve. The water adding device comprises a liquid adding bin and a pressurizing bin, and a non-return sealing valve is arranged at the interface between the water adding device and the crystal transformation device. A non-return sealing valve is arranged at the interface between the crystal transformation liquid spraying device and the crystal transformation device.