CN111486706A - Automatic balling device and method in drying kiln - Google Patents
Automatic balling device and method in drying kiln Download PDFInfo
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- CN111486706A CN111486706A CN202010285426.1A CN202010285426A CN111486706A CN 111486706 A CN111486706 A CN 111486706A CN 202010285426 A CN202010285426 A CN 202010285426A CN 111486706 A CN111486706 A CN 111486706A
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- balling
- kiln
- desicator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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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
- C04B33/00—Clay-wares
- C04B33/30—Drying methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses an automatic balling device in a drying kiln and a method thereof, and relates to the technical field of pug treatment. Including drying kiln barrel, interlink chain desicator, comb formula balling plate, turn over board desicator and U type desicator, drying kiln barrel sets up for the slope installation, and one side of interlink chain desicator is provided with comb formula balling plate, and one side of comb formula balling plate is provided with turns over the board desicator, and the one side of turning over the board desicator is provided with U type desicator, turns right from a left side in proper order to have set gradually interlink chain desicator, comb formula balling plate, turns over board desicator and U type desicator in the inside of drying kiln barrel. After the pug is put into the kiln, the material enters from a high end, and respectively passes through the interlinkage chain dryer, the comb-type balling plate, the turning plate dryer and the U-shaped dryer, and rolls and exchanges heat on the cylindrical metal liner all the way to reach a low end, and a finished product of the ceramsite sintered by balling in the kiln is generally round, automatically balling, and can treat and reutilize raw materials such as silt and the like, thereby creating higher economic benefit.
Description
Technical Field
The invention relates to the technical field of pug treatment, in particular to an automatic balling device in a drying kiln and a method thereof.
Background
The river channel treatment industry in China is vigorously developed, in recent years, a large number of black and odorous water comprehensive treatment projects across the country are brought to the market, the treatment of dredging sludge accompanied with the black and odorous water comprehensive treatment projects is more and more concerned by people, the river channel sludge generally contains pollutants such as heavy metals, nutrient elements, refractory organic matters and the like, the dredging soil has poor mechanical properties and is rich in pollutants such as heavy metals and the like, the pollutants in the sludge can be fixed only after the sludge is effectively treated, the dissolution of the heavy metals is reduced, the mechanical property of products is enhanced, the sludge is finally used as a renewable geotechnical material and a building material for engineering construction, and the dredging substrate sludge treatment modes which are widely applied in China mainly comprise three modes of dehydration (airing and mechanical dehydration), solidification and sintering.
The sludge is treated by the airing method, although the construction is simple and the cost is low, the airing needs to occupy a large area of field and is easily influenced by weather, and the mechanical dewatering equipment has higher price and low treatment efficiency and is difficult to meet the requirements of large-scale dredging engineering; the effect of sealing pollutants in the sludge by adopting a curing mode is unstable, the obtained resource product has low added value of engineering soil, the production cost of the curing agent is high, and the curing period is long, so that the using effect is general.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic balling device in a drying kiln and a method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a balling automation equipment in drying kiln, includes drying kiln barrel, interlink chain desicator, comb formula balling plate, turns over board desicator and U type desicator, drying kiln barrel sets up for the slope installation, one side of interlink chain desicator is provided with comb formula balling plate, one side of comb formula balling plate is provided with turns over the board desicator, the one side that turns over the board desicator is provided with U type desicator, turn right from a left side in the inside of drying kiln barrel and set gradually interlink chain desicator, comb formula balling plate, turn over board desicator and U type desicator, balling automation equipment fixes the inner wall at the kiln in this drying kiln, rotates along with the kiln together.
Further optimizing the technical scheme, the selection of the drying kiln cylinder body is as follows: the dumbbell-shaped kiln is selected as the drying kiln cylinder, the dumbbell-shaped kiln is adopted as the starting point, the energy consumption is reduced, the heat exchange efficiency is improved, and when hot air reaches the large end of the rotary kiln, the flow rate of the gas is slowed down, so that the heat exchange time is prolonged.
Further optimize this technical scheme, the catenated chain desicator is mainly broken up the mud pie and dries, opens the propulsive effect simultaneously, makes the mud pie impel by the high end of dry kiln to the low end, and the number of rings of chain increases according to the increase of kiln diameter, and the number of rings is the odd number, and the chain is fixed on the link plate with the U template, hangs and is the star.
Further optimizing the technical scheme, the comb type balling plate mainly controls the size of the material balls through the distance between the round rods.
The technical scheme is further optimized, the flap dryer is mainly characterized in that mud is dispersed on a transverse interface of the kiln after being agglomerated into balls, the flap equally divides the space in the kiln into four equal parts in a circular section, and the flap is fixed through an arc-shaped plate and an outer connecting plate which are positioned in the center of the kiln.
Further optimize this technical scheme, U type desicator absorbs a large amount of heats and is used for the material ball thoroughly to dry mainly, and the section of U-shaped desicator is "U" shape, has the round hole on the flange of both ends for through drying the stick, several U-shaped desicators piece together a whole circle in the kiln.
Further optimizing the technical scheme, the drying kiln cylinder body is obliquely installed, materials enter from the high end and respectively pass through the interlink chain dryer, the comb type balling plate, the turning plate dryer and the U-shaped dryer, and one way of materials rolls and exchanges heat on the cylindrical metal inner container to reach the low end.
Further optimizing the technical scheme, the metal inner container improves the heat exchange area and simultaneously protects the refractory bricks, so that the metal inner container is prevented from being damaged due to the change of temperature and material moisture, and flanges are arranged on two sides of each metal inner container and fixed with the connecting plate through bolts.
A use method of an automatic balling device in a drying kiln comprises the following steps:
s1, the mud enters from the high end, the mud enters into a link chain dryer after entering into the kiln, the link chain dryer is used for breaking up mud clusters, and the broken-up mud clusters are pushed from the high end to the low end;
s2, pushing the scattered mud balls into a comb-type balling plate, and controlling the size of the material balls through the distance between the round rods; drying can be carried out while granulating, so that a balling process in the kiln is finished by utilizing a link chain dryer and a comb-type balling plate;
s3, processing the pug by a link chain dryer and a comb-type balling plate, then putting the pug into a flap dryer, balling the pug into balls, and dispersing the balls on a transverse interface of the kiln to improve the heat exchange efficiency;
s4, the mud pie is pushed into the U-shaped dryer from the high end to the low end, and a large amount of heat is absorbed for thoroughly drying the pellets;
s5, pushing out from the lower end after the completion of the balling in the kiln, wherein the finished ceramsite baked in the balling in the kiln is generally round, and thus the balling processing of the pug can be completed;
further optimizing the technical scheme, in the step S1, the water content of the mud material fed into the kiln is allowed to be 40-60% or higher, and the method is particularly suitable for the production of raw materials with large initial water content, such as domestic sludge, sea mud and the like.
Advantageous effects
Compared with the prior art, the invention provides an automatic balling device in a drying kiln and a method thereof, which have the following beneficial effects:
after the mud materials are fed into the kiln, the materials enter from the high end and respectively pass through a chain dryer, a comb type balling plate, a flap dryer and a U-shaped dryer, all the way rolls and exchanges heat on a cylindrical metal inner container to reach the low end, and the finished ceramsite baked by balling in the kiln is generally round, automatically balling, has high thermal efficiency, can treat raw materials such as silt for secondary utilization and creates high economic benefit.
Drawings
FIG. 1 is a schematic structural diagram of an automatic balling device in a drying kiln according to the present invention;
FIG. 2 is a schematic flow chart of a method for using the automatic balling device in the drying kiln according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides an automatic balling device in a drying kiln, which comprises a drying kiln cylinder, a link chain dryer 1, a comb-type balling plate 2, a flap dryer 3 and a U-shaped dryer 4, the drying kiln cylinder is arranged in an inclined way, one side of the interlinked chain dryer 1 is provided with a comb-type balling plate 2, a turning plate dryer 3 is arranged on one side of the comb type balling plate 2, a U-shaped dryer 4 is arranged on one side of the turning plate dryer 3, the interior of the drying kiln barrel is sequentially provided with a link chain dryer 1, a comb type balling plate 2, a flap dryer 3 and a U-shaped dryer 4 from left to right, the automatic balling device in the drying kiln is fixed on the inner wall of the kiln and rotates along with the kiln, and is characterized in that a set of device integrating efficient heat exchange, automatic balling and particle size control is arranged in the drying preheating kiln.
Design of the drying kiln: according to the principle of heat exchange, a large number of metal components are arranged in the drying kiln for heat exchange, and specifically, 5 components are provided: the plate forming machine comprises a chain, a comb type ball forming plate 2, a plate turning dryer 3, a U-shaped dryer 4 and a metal inner container, wherein the functions of all components are different but are mutually connected, the materials of the components are different according to different temperatures, and the functions of all the components are as follows:
as a specific optimization scheme of the invention, the dumbbell-shaped kiln is selected as the drying kiln cylinder, the dumbbell-shaped kiln is adopted as the starting point for reducing energy consumption and improving heat exchange efficiency, when hot air reaches the large end of the rotary kiln, the flow rate of the gas is slowed down, so that the heat exchange time is prolonged, and the heat efficiency is further improved.
As a specific optimization scheme of the invention, the chain link dryer 1 mainly breaks up mud lumps for drying, and simultaneously starts a propelling function to propel the mud lumps from the high end to the low end of the drying kiln, the number of the rings of the chain is increased according to the increase of the diameter of the kiln, the number of the rings is odd, and the chain is fixed on a connecting plate by a U-shaped plate and is hung in a star shape.
As a specific optimization scheme of the invention, the comb type balling plate 2 mainly controls the size of the material balls through the distance between the round rods, and plays a role in drying while granulating.
As a specific optimization scheme of the invention, the flap dryer 3 mainly disperses the agglomerated mud on the cross-sectional interface of the kiln to improve the heat exchange efficiency, the flaps equally divide the space in the kiln into four equal parts in the circular section, and the flaps are fixed by an arc-shaped plate and an outer connecting plate which are positioned in the center of the kiln.
As a specific optimization scheme of the invention, the U-shaped dryer 4 mainly absorbs a large amount of heat to thoroughly dry the pellets, the section of the U-shaped dryer is U-shaped, circular holes are formed in flanges at two ends of the U-shaped dryer and used for enabling the U-shaped dryer to pass through a drying rod, and a plurality of the U-shaped dryers are spliced into a whole circle in the kiln.
As a specific optimization scheme of the invention, the drying kiln cylinder body is obliquely installed, materials enter from the high end and respectively pass through the interlink chain dryer 1, the comb type balling plate 2, the flap plate dryer 3 and the U-shaped dryer 4, and one path of materials rolls and exchanges heat on the cylindrical metal inner container to reach the low end.
As a specific optimization scheme of the invention, the metal liner improves the heat exchange area and simultaneously protects the refractory bricks, so that the metal liner is prevented from being damaged due to the change of temperature and material moisture, and flanges are arranged on two sides of each metal liner and are fixed with the connecting plate through bolts.
A use method of an automatic balling device in a drying kiln comprises the following steps:
s1, the mud enters from the high end, the mud enters the link chain dryer 1 after entering the kiln, the link chain dryer 1 is used for scattering mud clusters, and the scattered mud clusters are pushed from the high end to the low end;
s2, pushing the scattered mud balls into the comb-type balling plate 2, and controlling the size of the material balls through the distance between the round rods; drying can be carried out while granulating, so that a balling process in the kiln is finished by utilizing the link chain dryer 1 and the comb-type balling plate 2;
s3, processing the pug by the link chain dryer 1 and the comb type balling plate 2, then putting the pug into the flap dryer 3, balling the pug into balls, dispersing the balls on a transverse interface of the kiln, and improving the heat exchange efficiency;
s4, the mud pie is pushed into the U-shaped dryer 4 from the high end to the low end, and a large amount of heat is absorbed for thoroughly drying the pellets;
and S5, pushing out from the lower end after the balling in the kiln is finished, wherein the ceramsite finished product fired by the balling in the kiln is generally round, and thus the balling processing of the pug can be finished.
As a specific optimization scheme of the invention, in the step S1, the water content of the mud fed into the kiln is allowed to be 40-50% or higher, and the method is particularly suitable for the production of raw materials with large initial moisture, such as domestic sludge, sea mud and the like.
The invention has the beneficial effects that: after the pug is put into the kiln, the material enters from high end, and respectively passes through the interlinkage chain dryer 1, the comb type balling plate 2, the turning plate dryer 3 and the U-shaped dryer 4, and one way of the material rolls and exchanges heat on the cylindrical metal liner to reach the low end, the finished ceramsite baked in the kiln by balling is generally round, the ceramsite is automatically balling, the heat efficiency is high, the raw materials such as silt can be treated and secondarily utilized, and the high economic benefit is created.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a balling automation equipment in drying kiln, includes drying kiln barrel, interlink chain desicator (1), comb formula balling plate (2), turns over board desicator (3) and U type desicator (4), its characterized in that, the drying kiln barrel sets up for the slope installation, one side of interlink chain desicator (1) is provided with comb formula balling plate (2), one side of comb formula balling plate (2) is provided with turns over board desicator (3), one side of turning over board desicator (3) is provided with U type desicator (4), the inside of drying kiln barrel is turned right from a left side and is set gradually interlink chain desicator (1), comb formula balling plate (2), turns over board desicator (3) and U type desicator (4), and balling automation equipment fixes the inner wall at the kiln in this drying kiln, rotates along with the kiln together.
2. The automated pellet formation device in a drying kiln according to claim 1, wherein the selection of the drying kiln cylinder: the dumbbell-shaped kiln is selected as the drying kiln cylinder, the dumbbell-shaped kiln is adopted as the starting point, the energy consumption is reduced, the heat exchange efficiency is improved, and when hot air reaches the large end of the rotary kiln, the flow rate of the gas is slowed down, so that the heat exchange time is prolonged.
3. An automatic balling device in a drying kiln according to claim 1, characterized in that the chain link dryer (1) mainly breaks up the mud mass to dry and simultaneously acts as a propulsion to propel the mud mass from the high end to the low end of the drying kiln, the number of the chain loops increases according to the increase of the kiln diameter, the number of the chain loops is odd, and the chain loops are fixed on the connecting plate by a U-shaped plate and are suspended in a star shape.
4. An automatic balling device in a drying kiln according to claim 1, characterized in that the comb balling plate (2) mainly controls the size of the pellets by the distance between the round rods.
5. The automatic balling device in the drying kiln according to claim 1, characterized in that the flap dryer (3) disperses the balls of mud on the cross section of the kiln, the flap equally divides the space in the kiln into four equal parts in the circular section, and the flap is fixed by an arc plate and an outer connecting plate at the center of the kiln.
6. The automatic balling device in the drying kiln according to claim 1 is characterized in that the U-shaped dryer (4) mainly absorbs a large amount of heat for completely drying pellets, the section of the U-shaped dryer is U-shaped, circular holes are formed in flanges at two ends of the U-shaped dryer for allowing drying rods to pass through, and a plurality of U-shaped dryers are spliced into a whole circle in the kiln.
7. The automatic balling device in a drying kiln according to claim 1 is characterized in that the obliquely installed drying kiln cylinder body is used for feeding materials from the high end to the low end through the interlinking chain dryer (1), the comb-type balling plate (2), the turning plate dryer (3) and the U-shaped dryer (4) respectively, and all the way rolls and exchanges heat on the cylindrical metal inner container.
8. The automatic balling device and the method thereof in the drying kiln according to claim 7, wherein the metal liner increases the heat exchange area and protects the refractory bricks to avoid damage caused by changes of temperature and material moisture, and flanges are arranged on two sides of each metal liner and fixed with the connecting plate through bolts.
9. The use method of the balling automation device in the drying kiln is characterized by comprising the following steps:
s1, the mud enters from the high end, the mud enters the link chain dryer (1) after entering the kiln, the link chain dryer (1) is used for scattering mud clusters, and the scattered mud clusters are pushed from the high end to the low end;
s2, pushing the scattered mud balls into the comb-type balling plate (2), and controlling the size of the material balls through the distance between the round rods; drying can be carried out while granulating, so that a balling process in the kiln is finished by utilizing the link chain dryer (1) and the comb-type balling plate (2);
s3, processing the pug by the link chain dryer (1) and the comb type balling plate (2), then entering the turning plate dryer (3), and dispersing the pug on the transverse interface of the kiln after balling to improve the heat exchange efficiency;
s4, the mud pie is pushed into the U-shaped dryer (4) from the high end to the low end, and a large amount of heat is absorbed for completely drying the pellets;
and S5, pushing out from the lower end after the balling in the kiln is finished, wherein the ceramsite finished product fired by the balling in the kiln is generally round, and thus the balling processing of the pug can be finished.
10. The use method of the automatic balling device in the drying kiln according to the claim 9, wherein in the step S1, the water content of the mud fed into the kiln is allowed to be 40-60% or higher, and the method is particularly suitable for the production of raw materials with large initial moisture such as domestic sludge, sea mud and the like.
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| CN202010285426.1A CN111486706A (en) | 2020-04-13 | 2020-04-13 | Automatic balling device and method in drying kiln |
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| CN202010285426.1A CN111486706A (en) | 2020-04-13 | 2020-04-13 | Automatic balling device and method in drying kiln |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3803234A1 (en) * | 1988-02-04 | 1989-08-24 | Harald M Schmidt | Process and apparatus for dewatering water-containing wastes |
| CN103030376A (en) * | 2012-12-11 | 2013-04-10 | 甘永雄 | Treatment apparatus and process for in-kiln balling and firing ceramsite from industrial waste residue and sludge |
| CN206085301U (en) * | 2016-07-11 | 2017-04-12 | 河南郑矿机器有限公司 | Pelletization device in gyration drying kiln kiln |
| CN106830890A (en) * | 2017-01-20 | 2017-06-13 | 衡阳绿陶环保陶粒设备有限公司 | A kind of sludge ceramsite formula and preparation method thereof |
| CN206420306U (en) * | 2017-01-20 | 2017-08-18 | 衡阳绿陶环保陶粒设备有限公司 | A kind of novel energy-conserving Expanded Clay Rotary Kilns |
-
2020
- 2020-04-13 CN CN202010285426.1A patent/CN111486706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3803234A1 (en) * | 1988-02-04 | 1989-08-24 | Harald M Schmidt | Process and apparatus for dewatering water-containing wastes |
| CN103030376A (en) * | 2012-12-11 | 2013-04-10 | 甘永雄 | Treatment apparatus and process for in-kiln balling and firing ceramsite from industrial waste residue and sludge |
| CN206085301U (en) * | 2016-07-11 | 2017-04-12 | 河南郑矿机器有限公司 | Pelletization device in gyration drying kiln kiln |
| CN106830890A (en) * | 2017-01-20 | 2017-06-13 | 衡阳绿陶环保陶粒设备有限公司 | A kind of sludge ceramsite formula and preparation method thereof |
| CN206420306U (en) * | 2017-01-20 | 2017-08-18 | 衡阳绿陶环保陶粒设备有限公司 | A kind of novel energy-conserving Expanded Clay Rotary Kilns |
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Application publication date: 20200804 |