CN110357651A - A method of use Dian Chi dredging silt to prepare high-strength ceramic granule for raw material - Google Patents
A method of use Dian Chi dredging silt to prepare high-strength ceramic granule for raw material Download PDFInfo
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- CN110357651A CN110357651A CN201910783831.3A CN201910783831A CN110357651A CN 110357651 A CN110357651 A CN 110357651A CN 201910783831 A CN201910783831 A CN 201910783831A CN 110357651 A CN110357651 A CN 110357651A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention prepares high-strength ceramic granule field, more particularly to a kind of method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, described that Dian Chi dredging silt is used to prepare the method for high-strength ceramic granule the following steps are included: step 1 for raw material: the sieve that Dian Chi dredging silt first passes through 100-200 mesh carries out sand fallout processing；Step 2: it is dried in an oven with 80 DEG C -105 DEG C of temperature；Step 3: mud after drying tails over 10%-30% to 80 μm using ball mill grinding；Step 4: balling-up is granulated, granular size 5-20mm；Step 5: it is cooled to room temperature after the roasting of Muffle furnace high temperature.The present invention provides one kind and prepares high-strength ceramic granule all of Dian Chi dredging silt raw material, it is not only that Dian Chi dredging silt in high volume comprehensively utilizes the new way opened, so that mud is turned waste into wealth, dredging silt stockpiling can also be reduced to the method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material of the pollution level of environment.
Description
Technical field
The present invention prepares high-strength ceramic granule field more particularly to a kind of Dian Chi dredging silt is used to prepare high-strength ceramic granule for raw material
Method.
Background technique
The prior art and defect:
Haydite is commonly called as to artificial light lightweight aggregate, and haydite has excellent performance, as density is low, cylindrical compress strength is high, hole
Gap rate is high, and coefficient of softing is high, frost resistance is good, alkali resistant aggregate reaction is excellent etc..It is internal more particularly because of haydite density is small
Hole, form, ingredient are more uniform, and have some strength and robustness, thus have light, corrosion-resistant, freeze proof, antidetonation and good
The multifunctional characteristics such as insulating.Haydite is widely used in and building materials, gardening, sewage treatment, flame-proof thermal insulation material, chemical industry, petroleum
Equal departments, application field is more and more wider, also is continuing to expand.
Dian Chi dredging silt mainly based on fine grained soil, is rich in organic matter and each pollutant, in addition ship dredging construction
Disturbance, mud are usually broken up the slurry condition to form high-moisture percentage, belong to the solid waste of high-moisture percentage in itself.Inland
Regional usually setting stockyard is stacked, and restores to use after natural evaporation and consolidation settlement form soil, this natural process
Need persistently several years to decades.Main problem existing for dredging silt is that moisture content is high, intensity is low and by different degrees of
Contain toxic heavy metal element in pollution and Dian Chi mud, also limits the disposition of mud from somewhat.By
2013, Dian Chi carried out three phase dredging works in total, was completed from 1998 Nian Zhisan phase dredging works, the dredging of more than ten years by a definite date
In engineering, the trip mud that shuttle goes out about 14,640,000 t is dredged from Dian Chi and periphery river, but this only accounts for the estimated total amount of lake region trip mud
1/10 or so, it is contemplated that there are also 80,000,000 t to 1.2 hundred million t trip mud wait dredging.Since Sediments of Dian Chi Lake total amount is too big, if right
Sediments of Dian Chi Lake does not use minimizing, innoxious, recycling, scale and the terminal disposition side for being not take up or lacking land occupation resource
Formula will hinder going on smoothly for Dianchi Lake Pollution comprehensive treatment.
Chinese patent (application number 201811639296.6) discloses one kind mainly with mud 50%~70%, steel slag 10%
~25%, correction agent 10%~30%, the method that foaming agent 1%~10% prepares haydite, haydite bulk density 450Kg/m3,
Water absorption rate 11.34%, cylindrical compress strength 2.5MPa.Chinese patent (application number 201110421324.9), which discloses, a kind of uses 100%
The method that urban river sediment prepares light ceramic, haydite bulk density are 300-500kg/m3.Chinese patent (application number
201711403528.3) a kind of utilize using bed-silt, Yellow River mud and flyash as prepared by primary raw material is disclosed
The method of slug type haydite, bulk density are 600~700kg/m3, cylindrical compress strength is 4.1~4.5MPa, soaks 1 hour and absorbs water
Rate is 6.8%~7.2%.Chinese patent (application number 201710829615.9) disclose it is a kind of made of Yellow river silt, sludge it is viscous
Tie the high-strength ceramic granule of agent preparation, 400~900kg/m of haydite bulk density3, cylindrical compress strength be 5~9MPa, water absorption rate 5~
15%.Since the requirement in GB/T17431.1-2010 standard to high-strength ceramic granule is: 1 hour Xi Shui Shuai≤10%, 600-
900Kg/m3Tong pressure Du≤4MPa of density rating, but the haydite of above-mentioned preparation or cylindrical compress strength are insufficient or only slightly higher
In 4.0MPa or water absorption rate be unqualified or mud Can Ru Liang≤30%；It is auxiliary to add some flyash steel slags etc.
It helps raw material to carry out ingredient, the basic demand of high-strength ceramic granule is all not achieved.
In conclusion problem of the existing technology is as follows:
(1) high-strength standard requirements are not achieved in the mud ceramic granules cylindrical compress strength of prior art preparation；
(2) high-strength ceramic granule standard requirements are not achieved in mud ceramic granules water absorption rate；
(3) mud Can Ru Liang≤30%；
(4) it needs to add the auxiliary materials such as flyash, steel slag, foaming agent, increases cost of material.
Solve the difficulty and meaning of above-mentioned technical problem:
Therefore, these problems are based on, one kind is provided all of Dian Chi dredging silt raw material and prepares high-strength ceramic granule, be not only
Dian Chi dredging silt in high volume comprehensively utilizes the new way opened, and mud is made to turn waste into wealth, and can also reduce dredging silt heap
Depositing has important reality meaning to the method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material of the pollution level of environment
Justice.
Summary of the invention
It is a kind of thin all of Dian Chi present invention aims at being provided to solve technical problem present in well-known technique
It dredges mud raw material and prepares high-strength ceramic granule, only Dian Chi dredging silt does not comprehensively utilize the new way opened in high volume, makes mud
Turn waste into wealth, can also reduce dredging silt stockpiling is raw material preparation height to the Dian Chi dredging silt that use of the pollution level of environment
The method of strong haydite.
The technical scheme adopted by the present invention to solve the technical problems existing in the known art is that
A method of use Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is described to use Dian Chi dredging silt for original
Material prepare the method for high-strength ceramic granule the following steps are included:
Step 1: Dian Chi dredging silt is subjected to sand fallout processing；
Step 2: the mud after will screen out is dried in an oven with 80 DEG C -105 DEG C of temperature；
Step 3: mud after drying tails over 10%-30% to 80 μm using ball mill grinding；
Step 4: balling-up granulation will be carried out by step 3 treated mud, and will form mud raw material ball, mud raw material ball
Size is 5-20mm；
Step 5: the mud raw material ball is roasted in Muffle furnace high temperature, is cooled to room temperature after high-temperature roasting.
The haydite is all prepared by Dian Chi dredging silt ingredient, and Xi Shui Shuai≤8%, cylindrical compress strength 7.8- are finally obtained
18.6MPa, bulk density 800-1200kg/m3Finished product.
The present invention can also use following technical scheme:
In the above-mentioned method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, further, the step
Sand fallout processing in one is carried out using the sieve of 100-200 mesh.
In the above-mentioned method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, further, the step
Drying time in two is 2-4, until raw material ball Shui Fen≤5%.
In the above-mentioned method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, further, the step
From room temperature to 200 DEG C -220 DEG C, heating-up time 20-25min in five, 15-20min is kept the temperature, then heat up from 200 DEG C -220 DEG C
To 600 DEG C -650 DEG C, heating-up time 35-40min of roasting, 15-20min is kept the temperature, is finally warming up to roasting 1105 by 600 DEG C -650 DEG C
After DEG C -1125 DEG C, heating-up time 55-70min, heat preservation 15-30 minutes, room temperature is naturally cooled to.
In conclusion the present invention has the advantages that:
1, present invention firstly provides being that raw material prepares high-strength ceramic granule all of Dian Chi dredging silt, silt is greatly improved
The usage amount of mud solves a large amount of mud that Dian Chi dredging generates and does not have effective vacant lot to stack, and a large amount of mud stackings pair
The influence of environment.Since temperature increasing schedule of the present invention is more reasonable, it is auxiliary that the present invention does not need addition flyash, steel slag, foaming agent etc.
Raw material is helped, cost of material is saved.
2, the present invention all using mud ingredient in the case where, not only the control of the water absorption rate of haydite within 8%,
The cylindrical compress strength (7.8-18.6MPa) of haydite is also greatly improved simultaneously.
3, the present invention makes full use of Dian Chi dredging silt to contain higher irony element improves haydite in calcination process
The hardness of superficial layer reduces the water absorption rate of haydite.It can be heavy metal harmful element in addition, preparing high-strength ceramic granule using mud
It is solid-solubilized in the compact texture of haydite, efficiently solving light ceramic can not be to effective solid solution problem of heavy metal element.
Specific embodiment
A method of use Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is described to use Dian Chi dredging silt for original
Material prepare the method for high-strength ceramic granule the following steps are included:
Step 1: Dian Chi dredging silt is subjected to sand fallout processing using the sieve of 100-200 mesh；Sand fallout treatment process is reduced
Dissociate haydite clinker particles cracking risk caused by quartz expansion in sand.
Step 2: the mud after will screen out is dried in an oven with 80 DEG C -105 DEG C of temperature, drying time 2-4, until
Raw material ball Shui Fen≤5%；
Step 3: mud after drying tails over 10%-30% to 80 μm using ball mill grinding；
Step 4: balling-up granulation will be carried out by step 3 treated mud, and will form mud raw material ball, mud raw material ball
Size is 5-20mm；
Step 5: the mud raw material ball being roasted in Muffle furnace high temperature, is cooled to room temperature after high-temperature roasting, specific real
Applying method: from room temperature to 200 DEG C -220 DEG C, heating-up time 20-25min, 15-20min is kept the temperature, then from 200 DEG C -220 DEG C
It is warming up to 600 DEG C -650 DEG C, heating-up time 35-40min of roasting, 15-20min is kept the temperature, is finally warming up to roasting by 600 DEG C -650 DEG C
After 1105 DEG C -1125 DEG C, heating-up time 55-70min, heat preservation 15-30 minutes, room temperature is naturally cooled to.
In above scheme, the main chemical compositions range of Dian Chi dredging silt is as shown in table 1 below.
1 primary raw material component list of table
Since temperature increasing schedule of the present invention is more reasonable, the present invention makes full use of temperature increasing schedule to regulate and control organic matter in mud to exist
The amount of gas of the thermal depolymerization rate and formation that occur in temperature-rise period forms the gas of distribution uniform in size inside haydite
Hole finally obtains Xi Shui Shuai≤8%, cylindrical compress strength 7.8-18.6MPa, bulk density 800-1200kg/m3Finished product.
Simultaneously as haydite is all prepared by Dian Chi dredging silt ingredient, for ingredient similar to clay, plasticity is relatively good,
Be conducive to balling-up granulation, be rich in silane agent, advantageously form the skeleton structure of high-strength ceramic granule, furthermore can also make full use of mud
In a small amount of organic mass-energy for containing improve the pore structure inside haydite in haydite high-temperature burning process, i.e., by making full use of
Temperature increasing schedule has regulated and controled the amount of gas of thermal depolymerization rate and formation that organic matter in mud occurs in temperature-rise period, in haydite
Inside forms the stomata of distribution uniform in size.
In view of the problems of the existing technology, the present invention uses 100% Dian Chi dredging silt to prepare high-strength ceramic granule for raw material.
A small amount of organic carbon in the dredging silt of Dian Chi is made full use of to improve the pore structure inside haydite, and contained using its own
Irony member usually improves the hardness for improving haydite superficial layer, and heavy metal element is solid-solubilized in inside haydite by high-temperature calcination, this
The high-strength ceramsite of kind method preparation can be applied to be built in high strength structure concrete, assembled stair, prefabricated components and assembled
It builds.The use of Dian Chi Dredged bed mud is all that raw material prepares high-strength ceramic granule, not only innoxious use solid waste and reduces to environment
Harm, while there is preferable social benefit and environmental benefit.
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, following embodiment
The main chemical compositions range of the Dian Chi dredging silt of use is as shown in table 1, and detailed description are as follows:
Embodiment one:
The sieve that Dian Chi dredging silt first passes through 100 mesh is first subjected to sand fallout processing, then in an oven with 105 DEG C of temperature
Then degree drying, the mud after drying tail over 10%-15% using ball mill grinding to 80 μm with the proportion scale in table 2,
It being granulated through balling-up equipment, granular size is generally 5-20mm, it is cooled to room temperature after the roasting of Muffle furnace high temperature after balling-up drying,
Obtain haydite clinker.
Table 2: the proportion scheme of embodiment one
| Title | Dian Chi dredging silt |
| Proportion | 100% |
It specifically includes and first dries the raw material sphere 4 hours with 105 DEG C in an oven, raw material ball water point≤1%, then
Drying raw material ball is put into Muffle furnace, from room temperature to 200 DEG C, heating-up time 25min, heat preservation 20min, then from
200 DEG C are warming up to 650 DEG C, heating-up time 40min of roasting, keep the temperature 20min, are finally warming up to 1125 DEG C of roasting, heating-up time by 650 DEG C
70min naturally cools to room temperature after heat preservation 30 minutes.It acquires Pottery product in above scheme to be characterized in that: bulk density
For 1026kg/m3, cylindrical compress strength 18.6MPa, 1h water absorption rate is 0.5%.
Embodiment two:
The sieve that Dian Chi dredging silt first passes through 200 mesh is first subjected to sand fallout processing, then in an oven with 80 DEG C of temperature
Then degree drying, the mud after drying tail over 20%-30% using ball mill grinding to 80 μm with the proportion scale in table 3,
It is granulated through balling-up equipment, granular size is generally 5-20mm, is cooled to room after the roasting of Muffle furnace high temperature after raw material ball drying
Temperature obtains haydite clinker.
Table 3: the proportion scheme of embodiment two
| Title | Dian Chi dredging silt |
| Proportion | 100% |
It specifically includes and first dries the raw material sphere 2 hours with 80 DEG C in an oven, raw material ball water point≤5%, then
Drying raw material ball is put into Muffle furnace, from room temperature to 220 DEG C, heating-up time 20min, heat preservation 15min, then from
220 DEG C are warming up to 600 DEG C, heating-up time 35min of roasting, keep the temperature 15min, are finally warming up to 1105 DEG C of roasting, heating-up time by 600 DEG C
55min naturally cools to room temperature after heat preservation 15 minutes.It acquires Pottery product in above scheme to be characterized in that: bulk density
For 823kg/m3, cylindrical compress strength 7.8MPa, 1h water absorption rate is 7.6%.
Comparison one:
Application No. is 00112620.2 patents of invention: haydite sluge from Dianchi Lake and preparation method thereof, uses 100% Yunnan
That pond firing sludge goes out is 300~500kg/m of bulk density3Superlight ceramsites；Use 40~90% sluge from Dianchi Lake, 10-60%
Red, yellow, black earth ingredient burns out 500~800kg/m of bulk density3Structure；Use 60~80% sluge from Dianchi Lake, 20-40%
Pure laterite burn out 800~1100kg/m3High-strength ceramic granule.
Difference: 1. the patent only burnt out using 100% Dian Chi mud belong to light ceramic scope bulk density 300~
500kg/m3Haydite, and what our patent can burn out using 100% Dian Chi mud is high-strength ceramic granule.2. the patent does not have
There is the sand fallout processing for referring to mud, sand content is higher in mud, will lead to haydite clinker and generates quartzy phase in cooling procedure
Become, so as to cause the cracking risk of haydite；3. the furthermore standby 500~800kg/m of density rating of the patent system3Structure ceramisite and close
Spend 800~1100kg/m of grade3Structure ceramisite does not provide the data such as cylindrical compress strength, and especially it is other than using Dian Chi mud
Clay resources also are waited using a large amount of reddish yellow is black, it is potting grain that country, which has been forbidden to use clay resource, at present.And our patent
High-strength ceramic granule can be burnt out using only 100% Dian Chi mud, it is big to Dian Chi mud disposing capacity, do not need addition country
It is forbidden to use clay resource and carrys out auxiliary ingredients.
Comparison two:
Application No. is 201711403528.3 patents of invention: a kind of bed-silt sintering ceramsite and preparation method thereof, institute
The bulk density of the sintering ceramsite of preparation is 600~700kg/m3, cylindrical compress strength is 4.1~4.5MPa, and soak 1 hour water absorption rate
It is 6.8%~7.2%.
Difference: 1. according to the cylinder pressure in GB/T 17431.1-2010 about the graduate high-strength light coarse aggregate of different densities
Intensity is not less than corresponding intensity, i.e. the cylindrical compress strength of 600 density ratings is not lower than 4.0MPa, the cylinder pressure of 700 density ratings
Intensity is not lower than 5.0MPa, the cylindrical compress strength of 700 density rating of invention only 4.5MPa, lower than specified in national standard
5.0MPa, and the minimum 7.8MPa of 800 density ratings that our patent is minimum, much higher than 6.0MPa specified in national standard.2. should
Invention uses bed-silt ratio 70%, additionally to add 30~55% Yellow River mud and 15~30% flyash carries out
Ingredient can just burn out the grindability of haydite, especially Yellow River mud and the grindability of flyash and mud differs greatly, more
When component ingredient, mixing uniformity can also have an adverse effect to properties of product.And our patent uses 100% Dian Chi mud
Burn out haydite, do not add any other auxiliary material, ensure that the stability of material composition.
High-strength ceramic granule is prepared all of Dian Chi dredging silt raw material in conclusion the present invention can provide one kind, is not only
Dian Chi dredging silt in high volume comprehensively utilizes the new way opened, and mud is made to turn waste into wealth, and can also reduce dredging silt heap
Deposit the method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material to the pollution level of environment.
Above embodiments describe the invention in detail, but content is only the preferred embodiment of the present invention, no
It can be believed to be used to limit the scope of the invention.Any changes and modifications in accordance with the scope of the present application,
It should still fall within the scope of the patent of the present invention.
Claims (4)
1. a kind of method for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is characterised in that: described to be dredged using Dian Chi
Dredge mud be raw material prepare high-strength ceramic granule method the following steps are included:
Step 1: Dian Chi dredging silt is subjected to sand fallout processing；
Step 2: the mud after will screen out is dried in an oven with 80 DEG C -105 DEG C of temperature；
Step 3: mud after drying tails over 10%-30% to 80 μm using ball mill grinding；
Step 4: balling-up granulation will be carried out by step 3 treated mud, and will form mud raw material ball, mud raw material ball size
For 5-20mm；
Step 5: the mud raw material ball is roasted in Muffle furnace high temperature, is cooled to room temperature after high-temperature roasting.
2. the method according to claim 1 for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is characterised in that:
Sand fallout processing in the step 1 is carried out using the sieve of 100-200 mesh.
3. the method according to claim 1 for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is characterised in that:
Drying time in the step 2 is 2-4, until raw material ball Shui Fen≤5%.
4. the method according to claim 1 for using Dian Chi dredging silt to prepare high-strength ceramic granule for raw material, it is characterised in that:
From room temperature to 200 DEG C -220 DEG C, heating-up time 20-25min in the step 5, keep the temperature 15-20min, then from 200 DEG C -
220 DEG C are warming up to 600 DEG C -650 DEG C, heating-up time 35-40min of roasting, keep the temperature 15-20min, finally by 600 DEG C of -650 DEG C of heatings
Room temperature is naturally cooled to after heat preservation 15-30 minutes to 1105 DEG C -1125 DEG C, heating-up time 55-70min of roasting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683327A (en) * | 2021-09-03 | 2021-11-23 | 天津水泥工业设计研究院有限公司 | High-surface-activity light aggregate and preparation method thereof |
| CN114031416A (en) * | 2021-12-23 | 2022-02-11 | 镇江市港发绿色资源有限公司 | Method for firing ceramsite by using machine-made sand-mud cake |
| CN115304396A (en) * | 2022-07-29 | 2022-11-08 | 黄河水利委员会黄河水利科学研究院 | Lake and reservoir sludge high-strength ceramsite and preparation method thereof |
| CN117902733A (en) * | 2023-12-04 | 2024-04-19 | 河南省水利勘测设计研究有限公司 | Preparation method and application of water body bottom mud-based filler |
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| CN115304396B (en) * | 2022-07-29 | 2023-09-12 | 黄河水利委员会黄河水利科学研究院 | High-strength ceramsite prepared from sludge in lakes and reservoirs and preparation method of high-strength ceramsite |
| CN117902733A (en) * | 2023-12-04 | 2024-04-19 | 河南省水利勘测设计研究有限公司 | Preparation method and application of water body bottom mud-based filler |
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Application publication date: 20191022 |