CN116852489B - Preparation method for preparing energy-saving ceramsite light wallboard by using fly ash - Google Patents
Preparation method for preparing energy-saving ceramsite light wallboard by using fly ash Download PDFInfo
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- CN116852489B CN116852489B CN202310978637.7A CN202310978637A CN116852489B CN 116852489 B CN116852489 B CN 116852489B CN 202310978637 A CN202310978637 A CN 202310978637A CN 116852489 B CN116852489 B CN 116852489B
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- fly ash
- balling
- top cover
- spiral groove
- improved
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- 239000010881 fly ash Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000003756 stirring Methods 0.000 claims abstract description 46
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000013078 crystal Substances 0.000 claims abstract description 23
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 22
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000005469 granulation Methods 0.000 claims abstract description 4
- 230000003179 granulation Effects 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 25
- 230000009467 reduction Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 229910001868 water Inorganic materials 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 239000004567 concrete Substances 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a preparation method for preparing an energy-saving ceramsite light wallboard by using fly ash, which aims to solve the technical problems of uneven pore size and high screening strength of particle size on the surface of the current fly ash ceramsite, and is realized based on an improved granulating device, wherein the device has a balling state and a volleyball state and comprises a base, a carrier plate, a hydraulic cylinder, a machine case, a balling mechanism, a top cover, a lifting mechanism, a stirring mechanism and a valve group; in the balling state, the return stroke of the hydraulic cylinder causes the balling mechanism to be arranged on the base in a forward tilting structure; under the volleyball state, the stroke of the hydraulic cylinder causes the balling mechanism to be arranged on the base in a backward structure. According to the invention, the sodium bicarbonate crystal which is easy to decompose by heating, the fly ash and the auxiliary materials are mixed and added into the improved granulating device for granulation for a plurality of times, and the improved granulating device can ensure that the spherical shape and the spherical diameter of the ball are relatively consistent, so that the production quality of the improved ceramsite is improved.
Description
Technical Field
The invention relates to the technical field of wallboard preparation, in particular to a preparation method for preparing an energy-saving ceramsite light wallboard by using fly ash.
Background
The ceramsite has excellent properties such as low density, high cylinder pressure, high porosity, high softening coefficient, good freezing resistance, excellent alkali-resistant aggregate reaction performance and the like, and can be widely applied to building materials, gardening, food and beverage, fire-resistant heat-insulating materials, chemical industry, petroleum and other departments. The fly ash haydite is one kind of artificial light aggregate produced with fly ash as main material and through mixing, pre-wetting, stirring, pelletizing, pre-heating, baking and sintering with small amount of supplementary material. The composite material has the advantages of light weight, corrosion resistance, freezing resistance, earthquake resistance, good insulativity and the like, and can be widely applied to concrete members, refractory casting members and building heat insulation materials, and can also be applied to the fields of garden flowers, sewage treatment and the like. Although the ceramsite preparation technology gradually tends to be mature and the application field is continuously expanded, the ceramsite preparation technology still faces problems in industrial production, such as high water absorption rate, high bulk density, low raw material ball strength and the like.
The Chinese patent of the prior art with the publication number of CN110835240B provides a fly ash ceramsite and a preparation method thereof, and the technical scheme provides the fly ash ceramsite which has a cavity structure, uniform air holes are distributed in the area outside the cavity, and the inner wall of the cavity is obtained by high-temperature decomposition of low-melting-point solid wastes containing crystal water, structural water or hydroxyl groups. Specifically, low-melting-point solid waste is nucleated, fly ash and auxiliary materials are mixed, the obtained nucleated is coated by using the mixture, and the obtained nucleated is baked after being dried, and cooled to obtain the fly ash ceramsite with the cavity. The method has the defects that when the prepared ceramsite is nucleated by low-melting-point solid waste and flows out of the pellets in the roasting process, the sizes of the heated and stressed solid waste are difficult to ensure that the sizes of the pores on the surfaces of the pellets are uniform; secondly, in the process of nucleation and balling by using a granulator, the method is difficult to control the size of granulation, improves screening strength and has low manufacturing efficiency. In view of the above, we propose a method for preparing energy-saving ceramsite light wall boards by using fly ash.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to the actual needs, and provide a preparation method for preparing an energy-saving ceramsite light wallboard by using fly ash, so as to solve the technical problems of uneven pore size and high particle size screening strength of the surface of the current fly ash ceramsite.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the method is realized based on an improved granulating device, wherein the improved granulating device is provided with a balling state and a volleyball state and comprises a base, a carrier plate, a hydraulic cylinder, a machine case, a balling mechanism, a top cover, a lifting mechanism, a stirring mechanism and a valve group; the support plate is arranged at the top of the base in a forward tilting structure, the high end of the support plate is hinged with the high end of the base, the hydraulic cylinder is arranged at the low end of the support plate which is connected with the inside of the base, the case is arranged at the top end of the support plate, the ball forming mechanism is arranged on the support plate in a penetrating way to be connected with the case, the top cover is arranged above the ball forming mechanism, the lifting mechanism is arranged on the case in a penetrating way to be connected with the top cover, the stirring mechanism is arranged on the top cover in a penetrating way relative to the position of the ball forming mechanism, and the valve group is arranged on the top cover relative to the position of the ball forming mechanism;
In a balling state, the return stroke of the hydraulic cylinder causes the balling mechanism to be arranged on the base in a forward tilting structure;
in a volleyball state, the stroke of the hydraulic cylinder causes the balling mechanism to be arranged on the base in a backward tilting structure;
The preparation method for preparing the energy-saving ceramsite light wallboard by using the fly ash comprises the following steps of:
s100, preparing a mixture, wherein the mixture comprises fly ash, auxiliary materials and sodium bicarbonate crystals, and the mixture is divided into a plurality of parts;
s200, adjusting the improved granulating device to a balling state;
S300, mixing a first part of fly ash, a first part of auxiliary materials and a first part of sodium bicarbonate crystal, and then adding the mixture into an improved granulating device to carry out granulation to obtain a first step of balls;
s400, continuously adding a second part of fly ash, a second part of auxiliary materials and a second part of sodium bicarbonate crystal into the improved granulating device on the basis of the first step of material balls, and mixing to obtain a second step of material balls;
s500, repeatedly feeding and mixing for N times to obtain an N-th step material ball;
S600, adjusting the improved granulating device to a volleyball state;
S700, guiding out the balls in the N step from the improved granulating device, drying, roasting, and cooling to obtain improved ceramsite;
s800, mixing concrete fillers with filling components including cement, mixing water, river sand, improved ceramsite, a water reducing agent, cellulose, a water reducing agent and an early strength agent, and then injecting the mixture into a mould to manufacture the energy-saving ceramsite light wallboard.
Preferably, the hydraulic cylinder is arranged in the base in a backward tilting structure, and two ends of the hydraulic cylinder are hinged with the base bottom plate and the lower end of the carrier plate respectively through hinged supports.
Preferably, the balling mechanism comprises a balling cylinder, a speed reducer, a driving motor A and a spiral volleyball assembly; the ball forming cylinder consists of a rotary cylinder body positioned at the lower part and a guide cylinder body positioned at the upper part, and a sealing check ring for covering the opening of the rotary cylinder body is fixedly arranged on the guide cylinder body; the guide ring is fixedly connected with the side wall of the case, the fastening ring is fixedly sleeved on the outer side of the guide cylinder, and the fastening ring is fixedly connected with the side wall of the case; the speed reducer is arranged on the carrier plate in a penetrating way and connected with the bottom of the rotary cylinder; the driving motor A is fixedly arranged at the input end of the speed reducer; the spiral volleyball subassembly wears to locate on the guide barrel connect inside the quick-witted case.
Preferably, the spiral volleyball assembly comprises a shell and a turntable; the shell is fixedly arranged on the guide cylinder in a penetrating manner; the turntable is rotationally arranged in the shell; the front surface of the rotary table is aligned with the inner wall of the guide cylinder, the back surface of the rotary table and the inner wall of the shell enclose a collecting cavity, and a discharge pipe communicated with the outside is arranged at the lower end of the collecting cavity in a penetrating manner; the front surface of the rotary table is provided with a planar spiral groove A, a heating sheet with a spiral structure is embedded in the wide distance of the planar spiral groove, a planar spiral groove B is arranged in the rotary table interlayer, the feeding end of the planar spiral groove B is communicated with the discharging end of the planar spiral groove A, and the discharging end of the planar spiral groove B is communicated with the interior of the collecting cavity; the plane spiral grooves B and the plane spiral grooves A are distributed in a central symmetry mode.
Preferably, the spiral volleyball assembly further comprises a driving motor B and a speed reduction wheel set A; the driving motor B is arranged inside the case; the output end of the driving motor B penetrates out of the interior of the case and is connected with driving teeth; the speed reduction wheel set A is fixedly arranged on the back of the shell in a penetrating way; the input end of the speed reduction wheel set A is connected with driven teeth, the driven teeth are in transmission connection with the driving teeth, and the output end of the speed reduction wheel set A is coaxially connected with the rotary table.
Preferably, the heating temperature of the heating plate is 50-100 ℃.
Preferably, the size of the top cover is larger than that of the guide cylinder, and a feed inlet with a flip cover is arranged on the top cover at the position opposite to the guide cylinder; the valve group is arranged on the top cover at the position opposite to the material guiding cylinder body and comprises a liquid inlet valve and an exhaust valve.
Preferably, the stirring mechanism comprises a driving motor C, a stirring rod and a stirring head; the position of the driving motor C, which is far away from the guide cylinder body, is penetrated on the top cover; the stirring rod is penetrated on the top cover at a position opposite to the material guide cylinder; the output end of the driving motor C is in transmission connection with the input end of the stirring rod through a synchronous wheel set; the stirring head is sleeved at the output end of the stirring rod; the stirring head is provided with a double-screw extrusion assembly on the minor arc of the feeding end of the planar spiral groove A, and a plurality of stirring columns are arranged on the major arc of the feeding end of the planar spiral groove A, which is far away from the stirring head, in an annular equidistant manner.
Preferably, the double-screw extrusion assembly comprises a mounting seat, a driving motor D and two screw extrusion rods; the mounting seat is sleeved on the stirring rod at the position opposite to the turntable; the driving motor D is fixedly arranged on the mounting seat; the two spiral extrusion rods are arranged on one side of the feeding end of the plane spiral groove A in a parallel structure; one end of the spiral extrusion rod is rotationally connected with the stirring head, the other end of the spiral extrusion rod is sleeved with a synchronous gear, the two synchronous gears are in meshed connection, and one spiral extrusion rod is in transmission connection with the driving motor D through a reduction gear set B; the size of a gap formed by the thread grooves of the two spiral extrusion rods is matched with the size of the gap of the plane spiral groove A.
Preferably, the sodium bicarbonate crystals are one or more of orthorhombic or monoclinic or hexagonal or cubic.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the sodium bicarbonate crystals which are easy to decompose by heating are mixed with the fly ash and auxiliary materials, and are added into the improved granulating device for balling for a plurality of times, the preparation mode is mainly based on that the sodium bicarbonate crystals begin to decompose gradually to generate sodium carbonate, carbon dioxide and water at 50 ℃, so that the decomposition of the sodium bicarbonate crystals is accelerated by the machine heat of the improved granulating device, the generated water is prevented from strengthening the adhesion of balls and damaging the mixture which is not balled (sodium bicarbonate crystals in the mixture), and therefore, the mixture is required to be added into the improved granulating device for balling in batches, and the improved ceramsite which is uniformly mixed and coated is formed.
2. The improved granulating device is provided with a balling state and a volleyball state, when the improved granulating device is required to be adjusted to the balling state, the hydraulic cylinder returns to enable the balling mechanism to be arranged on the base in a forward tilting structure, and the mixture continuously rolls to form balls under the action of rotating force and gravity; after many times of balling operation, when the improved granulating device is required to be adjusted to a volleyball state, the stroke of the hydraulic cylinder causes the balling mechanism to be arranged on the base in a backward tilting structure, and the rough ceramsite embryo with uniform pores on the surface can be obtained after the balls are initially heated.
Drawings
FIG. 1 is a schematic diagram of an application structure of the present invention in a balling state;
FIG. 2 is a schematic view of an application structure of the present invention in a volleyball state;
FIG. 3 is a schematic view of the top cover and its connection structure according to the present invention;
FIG. 4 is a schematic view of a ball forming mechanism according to the present invention;
FIG. 5 is a schematic view of a cross section of a ball cylinder and its connection structure to illustrate the mating relationship of a double screw extrusion assembly and a screw volleyball assembly in accordance with the present invention;
FIG. 6 is a schematic view showing the disassembly of the double screw extrusion assembly and its connection structure according to the present invention;
FIG. 7 is a schematic plan view showing the mating structure of the double screw extrusion assembly and the spiral volleyball assembly according to the present invention;
FIG. 8 is a schematic side sectional view of a spiral volleyball assembly of the present invention;
FIG. 9 is a schematic diagram of a rotor structure of the present invention to show the mating relationship of planar spiral groove A and planar spiral groove B;
in the figure: 1. a base; 2. a carrier plate; 3. a hydraulic cylinder; 4. a chassis; 5. a balling mechanism; 6. a top cover; 7. a lifting mechanism; 8. a stirring mechanism; 9. a valve group;
501. a balling cylinder; 502. a speed reducer; 503. a driving motor A; 504. a spiral volleyball assembly;
5011. rotating the cylinder; 5012. a material guiding cylinder; 5013. a sealing retainer ring; 5014. a guide ring; 5015. a fastening ring;
5041. a housing; 5042. a turntable; 5043. a discharge pipe; 5044. a planar spiral groove A; 5045. a heating sheet; 5046. a planar spiral groove B; 5047. a driving motor B; 5048. a drive tooth; 5049. a speed reducing wheel group A; 50410. driven teeth;
801. A driving motor C; 802. a stirring rod; 803. a synchronous wheel set; 804. a stirring head; 805. a double screw extrusion assembly;
8051. A mounting base; 8052. a screw extrusion rod; 8053. a driving motor D; 8054. a synchronizing gear; 8055. and a speed reducing wheel group B.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
example 1: the preparation method for preparing the energy-saving ceramsite light wallboard by using the fly ash comprises the following steps:
S100, preparing a mixture, wherein the mixture comprises 70-90 parts of fly ash, 5-10 parts of auxiliary materials and 5-10 parts of sodium bicarbonate crystals, and the mixture is formed by stirring and mixing the fly ash, the auxiliary materials and the sodium bicarbonate crystals, wherein the auxiliary materials can be one or more of feldspar, clay and silicon carbide, and the mixture is uniformly divided into three parts;
s200, adjusting the improved granulating device to a balling state;
S300, mixing a first part of fly ash, a first part of auxiliary material and a first part of sodium bicarbonate crystal, and then adding the mixture into an improved granulating device to form balls, so as to obtain a first step of balls, wherein the diameter of each ball is 2-5 mm;
S400, continuously adding a second part of fly ash, a second part of auxiliary materials and a second part of sodium bicarbonate crystal into the improved granulating device on the basis of the first step of material balls, and mixing to obtain a second step of material balls, wherein the spherical diameter is 4-10 mm;
s500, repeating the feeding and mixing twice to obtain a third-step ball, wherein the diameter of the ball is 6-15 mm;
S600, adjusting the improved granulating device to a volleyball state;
S700, discharging the balls from the improved granulating device, drying, roasting, and cooling to obtain improved ceramsite with the particle size of 5-15 mm;
S800, mixing concrete fillers with filling components including cement, mixing water, river sand, improved ceramsite, a water reducing agent, cellulose, a water reducing agent and an early strength agent, and then injecting the mixture into a mould to manufacture the energy-saving ceramsite light wallboard, wherein the concrete fillers comprise the following components in parts by weight: 1 part of cement, 1.32 parts of river sand, 1.37 parts of ceramsite, 0.007 part of water reducer, 0.3 part of mixing water, 0.12 part of fly ash, 0.08 part of slag, 0.005 part of cellulose and 0.001 part of early strength agent; the manufacturing steps can refer to the technical scheme disclosed in the preparation method of the energy-saving ceramsite light wallboard provided by the Chinese patent with the publication number of CN 109435011B.
According to the invention, the sodium bicarbonate crystals which are easy to decompose by heating are mixed with the fly ash and auxiliary materials, and are added into the improved granulating device for balling for a plurality of times, the preparation mode is mainly based on that the sodium bicarbonate crystals begin to decompose gradually to generate sodium carbonate, carbon dioxide and water at 50 ℃, so that the decomposition of the sodium bicarbonate crystals is accelerated by the machine heat of the improved granulating device, the generated water is prevented from strengthening the adhesion of balls and damaging the mixture which is not balled (sodium bicarbonate crystals in the mixture), and therefore, the mixture is required to be added into the improved granulating device for balling in batches, and the improved ceramsite which is uniformly mixed and coated is formed.
Example 2: as shown in fig. 1 to 9, the method is realized based on an improved granulating device which has a balling state and a volleyball state and comprises a base 1, a carrier plate 2, a hydraulic cylinder 3, a machine case 4, a balling mechanism 5, a top cover 6, a lifting mechanism 7, a stirring mechanism 8 and a valve group 9; the support plate 2 is forward structure activity and arranges in base 1 top, and support plate 2 high end is articulated with base 1 high end, and the upset of being convenient for, and the hydraulic cylinder 3 activity is arranged in base 1 internal connection support plate 2 low end, specifically, as shown in fig. 2, and the hydraulic cylinder 3 is backward structure activity and arranges in base 1 inside, and its both ends all are articulated with base 1 bottom plate and support plate 2 low end respectively through the free bearing.
As shown in fig. 1, the chassis 4 is fixedly arranged at the top end of the carrier plate 2, the balling mechanism 5 is arranged on the carrier plate 2 in a penetrating way to be connected with the chassis 4, the top cover 6 is movably arranged above the balling mechanism 5, and specifically, as shown in fig. 4, the balling mechanism 5 comprises a balling cylinder 501, a speed reducer 502, a driving motor A503 and a spiral volleyball component 504; as shown in fig. 5, the ball forming cylinder 501 is composed of a rotary cylinder 5011 positioned at the lower part and a guide cylinder 5012 positioned at the upper part, wherein a sealing retainer ring 5013 for covering the opening of the rotary cylinder 5011 is fixedly arranged on the guide cylinder 5012; wherein, a guiding ring 5014 is movably sleeved outside the rotary cylinder 5011, the guiding ring 5014 is fixedly connected with the side wall of the case 4, a fastening ring 5015 is fixedly sleeved outside the guiding cylinder 5012, and the fastening ring 5015 is fixedly connected with the side wall of the case 4; The speed reducer 502 is arranged on the carrier plate 2 in a penetrating way and is connected with the bottom of the rotary cylinder 5011; as shown in fig. 4 and 5, a driving motor a503 is fixedly arranged at the input end of the speed reducer 502; the spiral volleyball component 504 penetrates through the guide cylinder 5012 and is connected with the inside of the case 4. Further, as shown in fig. 5, 8 and 9, the spiral volleyball assembly 504 includes a housing 5041 and a turntable 5042; the shell 5041 is fixedly arranged on the guide cylinder 5012 in a penetrating way; the turntable 5042 is rotatably arranged inside the shell 5041; wherein, the front surface of the rotary table 5042 is aligned with the inner wall of the material guiding cylinder 5012, the back surface of the rotary table 5042 and the inner wall of the shell 5041 enclose a collecting cavity, and a material discharging pipe 5043 communicated with the outside is arranged at the lower end of the collecting cavity in a penetrating way; The front surface of the turntable 5042 is provided with a planar spiral groove A5044, a heating plate 5045 with a spiral structure is embedded in the wide distance of the planar spiral groove 5044, the heating plate 5045 is connected with an external control mechanism, and when the turntable 5042 can be heated during power connection, it is worth noting that the heating temperature of the heating plate 5045 is 50-100 ℃, the sodium bicarbonate crystals in the balls output through the turntable 5042 can be decomposed by heating, so that preliminary pores can be generated from inside to outside during the output of the balls, and the ball deformation caused by subsequent high-temperature roasting is avoided. A plane spiral groove B5046 is formed in the interlayer of the turntable 5042, the feeding end of the plane spiral groove B5046 is communicated with the discharging end of the plane spiral groove A5044, and the discharging end of the plane spiral groove B5046 is communicated with the interior of the collecting cavity; The plane spiral groove B5046 and the plane spiral groove a5044 are distributed in a central symmetry manner, so that in the process of outputting the balls by rotating the turntable 5042, the balls are guided to move towards the center through the plane spiral groove a5044, and then are output through reverse spiral when falling into the plane spiral groove B5046, on one hand, the balls are favorably kept in the preliminary heating process, and on the other hand, the preliminary heating time can be prolonged. Further, as shown in fig. 8, the spiral volleyball assembly 504 further includes a driving motor B5047 and a reduction gear set a5049; drive motor B5047 is disposed inside the cabinet 4; wherein, the output end of the driving motor B5047 penetrates out of the interior of the case 4 and is connected with driving teeth 5048; The speed reduction wheel set A5049 is fixedly arranged on the back surface of the shell 5041 in a penetrating way; the input end of the reduction gear set a5049 is connected with a driven tooth 50410, the driven tooth 50410 is in transmission connection with a driving tooth 5048, the output end of the reduction gear set a5049 is coaxially connected with a turntable 5042, and the reduction gear set a5049 in the invention is a gear reduction structure in the prior common knowledge, which is not described in detail herein, and is mainly used for converting high-speed rotation of a driving motor B5047 into low-speed rotation.
The lifting mechanism 7 is arranged on the chassis 4 in a penetrating way and connected with the top cover 6, specifically, as shown in fig. 3, the size of the top cover 6 is larger than that of the guide cylinder 5012, and a feed inlet with a flip cover is arranged on the top cover 6 at a position opposite to the guide cylinder 5012; the valve group 9 is arranged on the top cover 6 relative to the position of the ball forming mechanism 5, specifically, the valve group 9 is arranged on the top cover 6 relative to the position of the material guiding barrel 5012, and the valve group comprises a liquid inlet valve and an exhaust valve, wherein the liquid inlet valve is used for spraying water in proper amount to enable the mixture to form balls with adhesive force in rotation, and the exhaust valve is used for the discharge of carbon dioxide generated by the ball heating and decomposition of the ball of the improved granulating device in the volleyball state through the ball forming mechanism 5.
The stirring mechanism 8 is arranged on the top cover 6 in a penetrating manner relative to the position of the balling mechanism 5, and specifically, as shown in fig. 5 and 6, the stirring mechanism 8 comprises a driving motor C801, a stirring rod 802 and a stirring head 804; the driving motor C801 is arranged on the top cover 6 in a penetrating way at a position far away from the material guide cylinder 5012; the stirring rod 802 is arranged on the top cover 6 in a penetrating way relative to the material guide cylinder 5012; the output end of the driving motor C801 is in transmission connection with the input end of the stirring rod 802 through a synchronous wheel set 803; the stirring head 804 is sleeved at the output end of the stirring rod 802; wherein, the inferior arc of the stirring head 804 opposite to the feeding end of the planar spiral groove A5044 is provided with a double-screw extrusion component 805, and the major arc of the stirring head 804 far away from the feeding end of the planar spiral groove A5044 is provided with a plurality of stirring columns in an annular equidistant manner. Further, the double-screw extrusion assembly 805 includes a mounting seat 8051, a driving motor D8053, and two screw extrusion rods 8052; the mounting seat 8051 is sleeved on the stirring rod 802 relative to the rotary table 5042; the driving motor D8053 is fixedly arranged on the mounting seat 8051; the two screw extrusion rods 8052 are arranged on one side of the feeding end of the plane spiral groove A5044 in a parallel structure; one end of the screw extrusion rod 8052 is rotationally connected with the stirring head 804, the other end of the screw extrusion rod 8052 is sleeved with a synchronous gear 8054, the two synchronous gears 8054 are in meshed connection, one screw extrusion rod 8052 is in transmission connection with the driving motor D8053 through a reduction gear set B8055, the reduction gear set B8055 in the invention is a gear reduction structure in the prior common knowledge, and the reduction gear set B8055 is mainly used for converting high-speed rotation of the driving motor D8053 into low-speed rotation. It is noted that, as shown in fig. 7, the size of the gap surrounded by the thread grooves of the two screw extrusion rods 8052 is adapted to the size of the gap of the plane screw groove a5044, and the thread grooves on the surface of the screw extrusion rods 8052 can enclose a gap similar to a round cavity during splicing.
Working principle: when the improved granulating device needs to be adjusted to a granulating state, the hydraulic cylinder 3 returns, the whole length is shortened, the granulating mechanism 5 is arranged on the base 1 in a forward tilting structure, as shown in a state diagram of fig. 1, a mixture is poured into a feed inlet of the top cover 6, the rotary cylinder 5011 is driven by the speed reducer 502 and the driving motor A503 to rotate, the mixture is rotated by the inclined rotary cylinder 5011, and the mixture is continuously rolled to balls by utilizing the action of gravity; after many times of balling operation, when the improved granulating device needs to be adjusted to a volleyball state, the hydraulic cylinder 3 is in a stroke, the whole length is stretched, so that the balling mechanism 5 is arranged on the base 1 in a backward structure, as shown in a state diagram shown in fig. 2, at the moment, the spiral volleyball assembly 504 and the double-spiral extrusion assembly 805 are synchronously driven to act, so that formed balls are extruded and conveyed through the double-spiral extrusion assembly 805 and enter the spiral volleyball assembly 504, are heated by the heating plate 5045 in the outward output process, form coarse ceramsite blanks with uniform pores on the surfaces, and are dried, baked and cooled to obtain the improved ceramsite.
The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present invention.
Claims (8)
1. A method for preparing an energy-saving ceramsite light wallboard by using fly ash, which is realized based on an improved granulating device, and is characterized in that the improved granulating device has a balling state and a volleyball state and comprises the following steps: the device comprises a base (1), a carrier plate (2), a hydraulic cylinder (3), a case (4), a balling mechanism (5), a top cover (6), a lifting mechanism (7), a stirring mechanism (8) and a valve group (9); the support plate (2) is arranged at the top of the base (1) in a forward tilting structure, the high end of the support plate (2) is hinged with the high end of the base (1), the hydraulic cylinder (3) is arranged at the low end of the support plate (2) which is connected with the inside of the base (1), the case (4) is arranged at the top end of the support plate (2), the ball forming mechanism (5) is arranged on the support plate (2) in a penetrating way and is connected with the case (4), the top cover (6) is arranged above the ball forming mechanism (5), the lifting mechanism (7) is arranged on the case (4) in a penetrating way and is connected with the top cover (6), the stirring mechanism (8) is arranged on the top cover (6) relative to the ball forming mechanism (5), and the valve group (9) is arranged on the top cover (6) relative to the ball forming mechanism (5).
In a balling state, the return stroke of the hydraulic cylinder (3) causes the balling mechanism (5) to be arranged on the base (1) in a forward tilting structure;
in a volleyball state, the stroke of the hydraulic cylinder (3) causes the balling mechanism (5) to be arranged on the base (1) in a backward tilting structure;
the balling mechanism (5) comprises:
A balling cylinder (501);
The ball forming cylinder (501) consists of a rotary cylinder (5011) positioned at the lower part and a guide cylinder (5012) positioned at the upper part, wherein a sealing retainer ring (5013) for covering an opening of the rotary cylinder (5011) is fixedly arranged on the guide cylinder (5012);
the guide device comprises a rotary cylinder body (5011), a guide ring (5014) is movably sleeved on the outer side of the rotary cylinder body (5011), the guide ring (5014) is fixedly connected with the side wall of the machine case (4), a fastening ring (5015) is fixedly sleeved on the outer side of the guide cylinder body (5012), and the fastening ring (5015) is fixedly connected with the side wall of the machine case (4);
the speed reducer (502) is arranged on the carrier plate (2) in a penetrating way and connected with the bottom of the rotary cylinder body (5011);
The driving motor A (503) is fixedly arranged at the input end of the speed reducer (502);
The spiral volleyball assembly (504) is arranged on the guide cylinder body (5012) in a penetrating way and is connected with the inside of the chassis (4);
The spiral volleyball assembly (504) comprises:
a housing (5041) fixedly penetrating through the guide cylinder (5012);
a turntable (5042) rotatably provided inside the housing (5041);
The front surface of the rotary table (5042) is aligned with the inner wall of the material guide cylinder (5012), the back surface of the rotary table (5042) and the inner wall of the shell (5041) enclose a collecting cavity, and a material discharging pipe (5043) communicated with the outside is arranged at the lower end of the collecting cavity in a penetrating way;
The front surface of the rotary table (5042) is provided with a plane spiral groove A (5044), a heating sheet (5045) with a spiral structure is embedded in the wide distance of the plane spiral groove (5044), a plane spiral groove B (5046) is arranged in the interlayer of the rotary table (5042), the feeding end of the plane spiral groove B (5046) is communicated with the discharging end of the plane spiral groove A (5044), and the discharging end of the plane spiral groove B (5046) is communicated with the interior of the collecting cavity;
wherein the plane spiral groove B (5046) and the plane spiral groove A (5044) are distributed in a central symmetry manner;
The preparation method for preparing the energy-saving ceramsite light wallboard by using the fly ash comprises the following steps of:
s100, preparing a mixture, wherein the mixture comprises fly ash, auxiliary materials and sodium bicarbonate crystals, and the mixture is divided into a plurality of parts;
s200, adjusting the improved granulating device to a balling state;
S300, mixing a first part of fly ash, a first part of auxiliary materials and a first part of sodium bicarbonate crystal, and then adding the mixture into an improved granulating device to carry out granulation to obtain a first step of balls;
s400, continuously adding a second part of fly ash, a second part of auxiliary materials and a second part of sodium bicarbonate crystal into the improved granulating device on the basis of the first step of material balls, and mixing to obtain a second step of material balls;
s500, repeatedly feeding and mixing for N times to obtain an N-th step material ball;
S600, adjusting the improved granulating device to a volleyball state;
S700, guiding out the balls in the N step from the improved granulating device, drying, roasting, and cooling to obtain improved ceramsite;
s800, mixing concrete fillers with filling components including cement, mixing water, river sand, improved ceramsite, a water reducing agent, cellulose, a water reducing agent and an early strength agent, and then injecting the mixture into a mould to manufacture the energy-saving ceramsite light wallboard.
2. The method for preparing the energy-saving ceramsite light wallboard by using the fly ash according to claim 1, wherein the hydraulic cylinder (3) is arranged in the base (1) in a backward tilting structure, and two ends of the hydraulic cylinder are respectively hinged with the bottom plate of the base (1) and the lower end of the carrier plate (2) through hinged supports.
3. The method of making an energy efficient ceramic lightweight wallboard from fly ash according to claim 2, wherein the spiral volleyball assembly (504) further comprises:
A driving motor B (5047) disposed inside the cabinet (4);
Wherein the output end of the driving motor B (5047) penetrates out of the interior of the case (4) and is connected with driving teeth (5048);
A speed reduction wheel set A (5049) fixedly penetrating through the back of the shell (5041);
The input end of the speed reduction wheel set A (5049) is connected with a driven tooth (50410), the driven tooth (50410) is in transmission connection with the driving tooth (5048), and the output end of the speed reduction wheel set A (5049) is coaxially connected with the rotary table (5042).
4. A method for preparing an energy-saving ceramsite light wallboard by using fly ash according to claim 3, wherein the heating temperature of the heating sheet (5045) is 50-100 ℃.
5. The method for preparing the energy-saving ceramsite light wallboard by using the fly ash according to claim 4, wherein the size of the top cover (6) is larger than that of the material guiding barrel (5012), and a feed inlet with a turnover cover is formed in the position of the top cover (6) relative to the material guiding barrel (5012);
the valve group (9) is arranged on the top cover (6) at a position opposite to the material guiding cylinder (5012) and comprises a liquid inlet valve and an exhaust valve.
6. The method for preparing the energy-saving ceramsite light wallboard by using the fly ash according to claim 5, wherein the stirring mechanism (8) comprises:
the driving motor C (801) is arranged on the top cover (6) in a penetrating way at a position far away from the material guide cylinder body (5012);
the stirring rod (802) is arranged on the top cover (6) in a penetrating way relative to the material guide cylinder (5012);
The output end of the driving motor C (801) is in transmission connection with the input end of the stirring rod (802) through a synchronous wheel set (803);
the stirring head (804) is sleeved at the output end of the stirring rod (802);
The stirring head (804) is provided with a double-screw extrusion assembly (805) on a minor arc of the feeding end of the planar spiral groove A (5044), and a plurality of stirring columns are arranged on a major arc of the feeding end of the planar spiral groove A (5044) far away from the stirring head (804) in an annular equidistant manner.
7. The method of preparing an energy efficient ceramsite lightweight wallboard from fly ash as defined in claim 6, wherein the twin screw extrusion assembly (805) comprises:
The mounting seat (8051) is sleeved on the stirring rod (802) at a position opposite to the rotary disc (5042);
the driving motor D (8053) is fixedly arranged on the mounting seat (8051);
Two screw extrusion rods (8052) which are arranged on one side of the feeding end of the plane spiral groove A (5044) in a parallel structure;
One end of the screw extrusion rod (8052) is rotationally connected with the stirring head (804), the other end of the screw extrusion rod is sleeved with a synchronous gear (8054), the two synchronous gears (8054) are in meshed connection, and one screw extrusion rod (8052) is in transmission connection with the driving motor D (8053) through a reduction gear set B (8055);
Wherein, the size of the gap enclosed by the thread grooves of the two screw extrusion rods (8052) is matched with the size of the gap of the plane screw groove A (5044).
8. The method for preparing the energy-saving ceramsite light wallboard by using the fly ash according to claim 1, wherein the sodium bicarbonate crystal is one or more of orthorhombic system, monoclinic system, hexagonal system and cubic system.
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| CN108162134A (en) * | 2017-11-13 | 2018-06-15 | 神华集团有限责任公司 | The preparation facilities and method of lytag |
| CN111087213A (en) * | 2019-12-27 | 2020-05-01 | 南京理工大学 | Method for preparing high-strength slag silicate ceramsite by spraying pre-hydrated cement slurry into balls |
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| JP2003340260A (en) * | 2002-05-27 | 2003-12-02 | Taiheiyo Kiko Kk | Apparatus for mixing/granulating bulk material and method for granulating bulk material using coal ash as main raw material |
| CN209338409U (en) * | 2018-11-19 | 2019-09-03 | 西安建筑科技大学 | A kind of system preparing high-strength ceramic granule using municipal sludge |
| CN111847938B (en) * | 2020-07-06 | 2022-08-05 | 上海大学 | Method for producing environment-friendly ceramsite by utilizing biogas residue hydrothermal carbon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162134A (en) * | 2017-11-13 | 2018-06-15 | 神华集团有限责任公司 | The preparation facilities and method of lytag |
| CN111087213A (en) * | 2019-12-27 | 2020-05-01 | 南京理工大学 | Method for preparing high-strength slag silicate ceramsite by spraying pre-hydrated cement slurry into balls |
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