CN112549252A - Preparation process of ecological brick taking household garbage incinerator slag as raw material - Google Patents
Preparation process of ecological brick taking household garbage incinerator slag as raw material Download PDFInfo
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- CN112549252A CN112549252A CN202011451568.7A CN202011451568A CN112549252A CN 112549252 A CN112549252 A CN 112549252A CN 202011451568 A CN202011451568 A CN 202011451568A CN 112549252 A CN112549252 A CN 112549252A
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- 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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
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- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- 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
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/026—Feeding the moulding material in measured quantities from a container or silo by using a movable hopper transferring the moulding material to the moulding cavities
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- 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
- B28B13/06—Removing the shaped articles from moulds
- B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
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- 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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- 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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a preparation process of an ecological brick taking household garbage incinerator slag as a raw material, which comprises the following steps: step one, drying, ball milling and sieving the furnace slag; step two, preparing a water strength agent aqueous solution, uniformly stirring all the raw materials, and then passing through a wheel mill to prepare a brick raw material; thirdly, pressing and molding the brick raw materials into green bricks by using a green brick molding machine; step four, moving the green bricks into a steam curing room for curing, and then transferring the green bricks into a finished product warehouse for storage to obtain the finished ecological bricks; the green brick forming machine comprises a feeding part, a pushing part, a forming part, a pressing part, a base and a rack assembly, wherein the pushing part is positioned on one side of the rack assembly, the feeding part is positioned above the pushing part, the pressing part is positioned above the inner part of the rack assembly, the forming part is positioned inside the rack assembly, the forming part is positioned below the pressing part, and the base is positioned below the forming part; the invention solves the problems of low strength and poor durability of ecological bricks prepared by using the domestic garbage incinerator slag in the prior art.
Description
Technical Field
The invention belongs to the technical field of ecological brick preparation, and particularly relates to a preparation process of an ecological brick taking household garbage incinerator slag as a raw material.
Background
After each ton of domestic garbage is incinerated, 0.2 ton of slag can be produced, and the domestic garbage incineration slag mainly comprises ceramics, glass, metal, incompletely combusted organic matters and non-combustible inorganic matters. The density of the domestic garbage incineration slag is about 2.3g/cm3pH 8-13, contains about 38% SiO222% of CaO, 10% of Al2O34.6% of Fe2O33% of MgO, and a small amount of K2O、Na2O, and the like. In addition, the contents of Pd, Cu and Zn in the incineration slag of the household garbage are 26, 14 and 13 times of the average content of the soil. Therefore, the direct landfill or utilization of the slag pollutes the environment, the generation amount of the household garbage incineration slag is increased along with the acceleration of the construction of a household garbage incineration power plant, and the regeneration treatment of the household garbage incineration slag becomes a problem to be solved.
With the continuous popularization of the concept of environmental protection, the change of the domestic garbage into valuable becomes a trend. The domestic waste incineration slag generated by the waste incineration power plant can not be recycled and is only used for extracting metals, and the slag after metal extraction is accumulated in a large amount, thereby causing great secondary pollution. The ecological brick is a very good choice to be manufactured by processing the slag generated after the domestic garbage is burnt to generate electricity. However, the domestic garbage has a lot of impurities, the slag after incineration cannot be directly made into bricks, and particularly, iron in the domestic garbage incineration slag easily causes the formed bricks to rust, so that the strength and the durability of the manufactured ecological bricks are influenced.
Disclosure of Invention
The invention aims to provide a preparation process of an ecological brick taking household garbage incinerator slag as a raw material, and solves the problems of low strength and poor durability of the ecological brick prepared from the household garbage incinerator slag in the prior art.
The purpose of the invention can be realized by the following technical scheme:
a preparation process of an ecological brick taking household garbage incinerator slag as a raw material specifically comprises the following steps:
firstly, putting 40-60 parts by weight of slag into a drying box for drying, adding the dried slag into a ball mill, sieving the dried slag through a 100-fold 300-mesh sieve after ball milling, taking the slag at the bottom of the sieve for later use, and returning the slag on the sieve to the ball mill for ball milling again;
step two, dissolving 0.1-0.2 part by weight of water intensifier in water to prepare a water intensifier aqueous solution with the mass fraction of 0.5-1% for later use, uniformly mixing 3-5 parts by weight of cement, 4-6 parts by weight of gypsum powder, 10-12 parts by weight of lime powder and 2-3 parts by weight of sodium silicate, and then sieving with a 200-mesh sieve to obtain mixed powder, adding the slag sieved in the step one into the mixed powder, then adding the water intensifier aqueous solution for stirring and mixing, transferring the mixture into a wheel mill after mixing, and performing wheel milling treatment to obtain a brick raw material for later use;
step three, adding the brick raw materials after wheel rolling into a feed hopper of a green brick forming machine, rotating to open a sealing baffle plate at the bottom end of the feed hopper, enabling the brick raw materials to fall into a material pushing frame from the bottom end of the feed hopper, rotating to close the sealing baffle plate at the bottom end of the feed hopper after the brick raw materials are fully stacked in the material pushing frame, controlling a material pushing cylinder, enabling a material pushing big arm and a material pushing small arm to push the material pushing frame to move towards a direction close to a forming female die, enabling the material pushing frame to move right above the forming female die, pushing the brick raw materials in the material pushing frame into a forming cavity of the forming female die, controlling the material pushing cylinder after the forming cavity is fully filled with the brick raw materials, pulling the material pushing frame back to a material pushing support plate from right above the forming female die, simultaneously bringing the redundant brick raw materials on the forming female die back to the material pushing support plate by the material pushing frame, controlling a material pressing cylinder to press and compact the brick, controlling a forming lifting cylinder to lift the forming female die upwards, pushing the green bricks in the forming cavity out by the material pressing head, then controlling the material pressing cylinder to lift the material pressing head upwards, controlling the forming lifting cylinder to lift the forming female die upwards, and placing the formed green bricks on the upper surface of the base in order;
and step four, transferring the green bricks into a steam curing chamber for placing neatly, heating the temperature in the curing chamber to 110 ℃ at the heating rate of 15 ℃/h, then preserving the heat at the temperature of 90-100 ℃ for 18-20h, reducing the temperature in the curing chamber to 30-35 ℃ at the cooling rate of 15-20 ℃/h after heat preservation, discharging the indoor steam, taking out the bricks, and delivering the bricks to a finished product storage for two days to obtain the ecological bricks.
Further, the slag is generated by a household garbage incineration power plant and subjected to metal extraction.
Further, the water-strengthening agent is one or more of polyvinyl alcohol, hydroxypropyl methyl cellulose, polyacrylamide and sodium polyacrylate which are mixed according to any proportion.
Further, in the third step, the pressing and forming pressure of the green brick forming machine is 20MPa, the pressurizing time is 60s, and the pressure maintaining time is 120 s.
Furthermore, the green brick forming machine in the third step comprises a feeding part, a pushing part, a forming part, a pressing part, a base and a rack assembly, wherein the pushing part is positioned on one side of the rack assembly, the feeding part is positioned above the pushing part, the pressing part is positioned above the inside of the rack assembly, the forming part is positioned inside the rack assembly, the forming part is positioned below the pressing part, and the base is positioned below the forming part;
the material pushing part comprises a material pushing support, a material pushing support plate, a material pushing frame, a material pushing guide rail, a frame body support rod, a roller, a material pushing support, a large material pushing arm, a small material pushing arm and a material pushing cylinder, the material pushing support plate is fixedly mounted on the material pushing support, the material pushing frame is positioned above the material pushing support plate, the bottom end of the material pushing frame is in sliding connection with the upper surface of the material pushing support plate, two frame body support rods which are oppositely arranged are respectively arranged on two sides of the material pushing frame, one end of each frame body support rod is fixedly connected with the outer wall of the material pushing frame, the roller is mounted at the other end of each frame body support rod and is rotationally connected with the frame body support rod, two material pushing guide rails which are oppositely arranged up and down are respectively arranged on two sides inside the material pushing support, one end of each material pushing guide rail is fixedly connected with, the device comprises a pushing support, a pushing big arm, two pushing small arms, two pushing cylinders and a pushing frame, wherein the pushing support is fixedly connected with the pushing support, the pushing big arm is arranged between the two pushing supports, the top end of the pushing big arm is rotatably connected with the pushing support, the bottom end of the pushing big arm is provided with the two opposite pushing small arms, one end of the pushing small arm is rotatably connected with the bottom end of the pushing big arm, the other end of the pushing small arm is rotatably connected with the outer wall of the pushing frame, the two opposite pushing cylinders are arranged above the pushing frame, the bottom ends of the pushing cylinders are hinged with the pushing support, and the;
the frame subassembly includes frame body, frame bottom plate, top mounting panel and traveller, frame bottom plate installation is fixed in frame body bottom, top mounting panel installation is fixed in frame body top center, and frame body both sides opposition respectively are provided with two travelers, the bottom and the frame bottom plate fixed connection of traveller, the top and the frame body fixed connection of traveller, the other end that pushes away the material guide rail and the inside both sides center fixed connection of frame body, the center of frame bottom plate upper surface is fixed in the pedestal mounting, and the installation is fixed with the striker plate above the base both sides.
Further, the feed portion includes the feeder hopper, the both sides opposition of feeder hopper is fixed with fixed lug, the bottom of fixed lug and the top fixed connection who pushes away the material support, the feeder hopper bottom is equipped with the sealing baffle, the upper surface and the feeder hopper bottom of sealing baffle cooperate, and the both sides opposition of sealing baffle is fixed with the rotation mounting panel, the top and the feeder hopper outer wall rotation of rotation mounting panel are connected.
Further, the shaping portion includes link, connecting rod, lower slider, shaping die and shaping lift cylinder, the link is located the top of frame subassembly, shaping lift cylinder is located link center below, the output and the link fixed connection of shaping lift cylinder, the bottom and the roof mounting board fixed connection of shaping lift cylinder, two the connecting rod is located the both ends of link respectively, the top and the link fixed connection of connecting rod, the top and the lower slider fixed connection of frame body are run through to the bottom of connecting rod, the both sides and the traveller sliding connection of slider down, the shaping die is located between two lower sliders, shaping die both sides and lower slider fixed connection, and inside the opening of shaping die has a plurality of evenly distributed's shaping chamber, the shaping chamber runs through the shaping die.
Further, press material portion to include sliding base, mounting bracket, pressure stub bar, yielding rubber piece, base support and press the material cylinder, sliding base's both sides and traveller sliding connection, sliding base's top center installation is fixed with the base support that two opposition set up, two press the material cylinder to be located the top of base support, press the cylinder body and the top mounting panel fixed connection of material cylinder, press the output of material cylinder to articulate with the base support, the mounting bracket is installed to sliding base's below, installs the yielding rubber piece between sliding base and the mounting bracket, the bottom installation of mounting bracket is fixed with a plurality of evenly distributed's pressure stub bar, press stub bar and become the die cavity and cooperate.
Further, the height of the upper surface of the pushing support plate is the same as the height of the upper surface of the forming female die when the lower surface of the forming female die and the upper surface of the base are attached to each other, and one side edge of the pushing support plate, which is close to the forming female die, is matched with the forming female die.
The invention has the beneficial effects that:
the invention changes the waste of the domestic garbage incineration slag into valuable by taking the slag produced by the domestic garbage incineration power plant as the main raw material, can relieve the over-exploitation of natural stone and is beneficial to protecting the ecological environment; firstly, drying slag, ball-milling the slag into powder with uniform particle size, dissolving a water strengthening agent in water to prepare a water strengthening agent aqueous solution, uniformly mixing cement, gypsum powder, lime powder and sodium silicate, adding the water strengthening agent aqueous solution and the slag, stirring and mixing to prepare a brick raw material, pressing and molding the brick raw material by using a brick blank molding machine to prepare a brick blank, transferring the brick blank into a steam curing chamber for steam curing, wherein the addition of the water strengthening agent can accelerate the condensation and hardening processes of a cementing material in the brick blank, accelerate the hydration and hydrothermal reaction between an active ingredient in the brick blank and the lime to generate hydrate with strength, improve the durability, increase the crystallinity, shorten the hardening time and enable the brick blank to reach the expected performance in a shorter time; sodium silicate is added as an activating agent to excite the activity of the domestic garbage incinerator slag and improve the strength of the product, and the strength of the prepared ecological brick is 2-3 times that of a common brick;
according to the invention, the green brick forming machine is used for pressing and forming the brick raw materials to prepare the green bricks, and the sealing baffle plate is arranged at the bottom end of the feed hopper, so that the amount of the brick raw materials entering the material pushing frame can be effectively controlled, the feeding process of the feed hopper is not influenced, and the production efficiency can be improved; through the arrangement of the material pushing part, the brick raw materials can be pushed into the forming female die, and meanwhile, redundant brick raw materials can be brought back, so that the brick raw materials are effectively prevented from being scattered and wasted on the forming female die, and the cleanness of the production environment can be improved; through the mutual matching of the pressing part and the forming part, the green brick can be easily separated from the forming female die while being pressed and formed, so that the production efficiency is greatly improved; the green brick forming machine has the advantages of simple structure, convenience in operation and high reliability, and can greatly improve the brick making efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a green brick molding machine of the present invention;
FIG. 2 is a schematic view of the structure of the feed section of the present invention;
FIG. 3 is a schematic structural view of the pushing section according to the present invention;
FIG. 4 is a schematic structural view of the forming section, pressing section, base and frame assembly of the present invention;
FIG. 5 is a front view of the forming section, pressing section, base and frame assembly of the present invention;
FIG. 6 is a side view of the forming section, pressing section, base and frame assembly of the present invention;
FIG. 7 is a schematic structural view of the forming die of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a feeding section; 101. a feed hopper; 102. a material sealing baffle plate; 103. a fixing lug; 2. a material pushing section; 201. a material pushing bracket; 202. a material pushing supporting plate; 203. a material pushing frame; 204. a material pushing guide rail; 205. a frame body support rod; 206. a roller; 207. a material pushing support; 208. a pushing big arm; 209. a material pushing small arm; 210. a material pushing cylinder; 3. a molding section; 301. a connecting frame; 302. a connecting rod; 303. a lower slide block; 304. forming a female die; 3041. a molding cavity; 305. forming a lifting cylinder; 4. a material pressing part; 401. a slide base; 402. a mounting frame; 403. pressing the material head; 404. a shock-absorbing rubber block; 405. a base support; 406. a material pressing cylinder; 5. a base; 501. a striker plate; 6. a rack assembly; 601. a frame body; 602. a chassis base plate; 603. a top mounting plate; 604. a slide column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Example 1
A preparation process of an ecological brick taking household garbage incinerator slag as a raw material specifically comprises the following steps:
step one, putting 40 parts by weight of slag into a drying box, drying, adding into a ball mill after drying treatment, sieving with a 100-mesh sieve after ball milling, taking slag at the bottom of the sieve for later use, and returning slag on the sieve to the ball mill for ball milling treatment again;
step two, dissolving 0.1 part by weight of water intensifier in water to prepare a water intensifier aqueous solution with the mass fraction of 0.5% for later use, uniformly mixing 3 parts by weight of cement, 4 parts by weight of gypsum powder, 10 parts by weight of lime powder and 2 parts by weight of sodium silicate, and then sieving the mixture through a 200-mesh sieve to obtain mixed powder, adding the slag sieved in the step one into the mixed powder, then adding the water intensifier aqueous solution for stirring and mixing, transferring the mixture into a wheel mill after mixing, and preparing a brick raw material for later use after wheel milling treatment;
step three, adding the brick raw material after wheel rolling into a feed hopper 101 of a green brick forming machine, rotating to open a sealing baffle plate 102 at the bottom end of the feed hopper 101, so that the brick raw material falls into a pushing frame 203 from the bottom end of the feed hopper 101, rotating to close the sealing baffle plate 102 at the bottom end of the feed hopper 101 after the brick raw material is fully stacked in the pushing frame 203, controlling a pushing cylinder 210, enabling a pushing big arm 208 and a pushing small arm 209 to push the pushing frame 203 to move towards a direction close to a forming female die 304, moving the pushing frame 203 to be right above the forming female die 304, pushing the brick raw material in the pushing frame 203 into a forming cavity 3041 of the forming female die 304, controlling the pushing cylinder 210 after the forming cavity 3041 is fully filled with the brick raw material, pulling the pushing frame 203 back to the pushing supporting plate 202 from right above the forming female die 304, simultaneously bringing redundant brick raw material on the forming female die 304 back to the pushing supporting plate 202, controlling a material pressing cylinder 406, pressing the pressing head 403 downwards, compacting and molding the brick raw material in the molding cavity 3041, after pressurization and pressure maintaining, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, pushing out the green brick in the molding cavity 3041 by the pressing head 403, then controlling the pressing cylinder 406 to lift the pressing head 403 upwards, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, and placing the molded green brick on the upper surface of the base 5 in order;
and step four, transferring the green bricks into a steam curing chamber, placing the green bricks in order, heating the temperature in the curing chamber to 100 ℃ at the heating rate of 15 ℃/h, then preserving the heat at 90 ℃ for 18h, reducing the temperature in the curing chamber to 30 ℃ at the cooling rate of 15 ℃/h after heat preservation, discharging the indoor steam, taking out the bricks, and delivering a finished product stock for two days to obtain the ecological brick.
The slag is produced by a domestic waste incineration power plant and is subjected to metal extraction.
The water-strengthening agent is polyvinyl alcohol.
And in the third step, the pressing and forming pressure of the green brick forming machine is 20MPa, the pressurizing time is 60s, and the pressure maintaining time is 120 s.
Example 2
A preparation process of an ecological brick taking household garbage incinerator slag as a raw material specifically comprises the following steps:
step one, 50 parts by weight of furnace slag is put into a drying box and dried firstly, the furnace slag is added into a ball mill after drying treatment, the furnace slag is sieved by a 200-mesh sieve after ball milling, the furnace slag at the bottom of the sieve is taken for standby, and the furnace slag on the sieve is returned into the ball mill for ball milling treatment again;
step two, dissolving 0.15 part by weight of water intensifier in water to prepare a water intensifier aqueous solution with the mass fraction of 0.8% for later use, uniformly mixing 4 parts by weight of cement, 5 parts by weight of gypsum powder, 11 parts by weight of lime powder and 2 parts by weight of sodium silicate, and then sieving with a 200-mesh sieve to obtain mixed powder, adding the slag sieved in the step one into the mixed powder, then adding the water intensifier aqueous solution for stirring and mixing, transferring the mixture into a wheel mill after mixing, and preparing a brick raw material for later use after wheel milling treatment;
step three, adding the brick raw material after wheel rolling into a feed hopper 101 of a green brick forming machine, rotating to open a sealing baffle plate 102 at the bottom end of the feed hopper 101, so that the brick raw material falls into a pushing frame 203 from the bottom end of the feed hopper 101, rotating to close the sealing baffle plate 102 at the bottom end of the feed hopper 101 after the brick raw material is fully stacked in the pushing frame 203, controlling a pushing cylinder 210, enabling a pushing big arm 208 and a pushing small arm 209 to push the pushing frame 203 to move towards a direction close to a forming female die 304, moving the pushing frame 203 to be right above the forming female die 304, pushing the brick raw material in the pushing frame 203 into a forming cavity 3041 of the forming female die 304, controlling the pushing cylinder 210 after the forming cavity 3041 is fully filled with the brick raw material, pulling the pushing frame 203 back to the pushing supporting plate 202 from right above the forming female die 304, simultaneously bringing redundant brick raw material on the forming female die 304 back to the pushing supporting plate 202, controlling a material pressing cylinder 406, pressing the pressing head 403 downwards, compacting and molding the brick raw material in the molding cavity 3041, after pressurization and pressure maintaining, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, pushing out the green brick in the molding cavity 3041 by the pressing head 403, then controlling the pressing cylinder 406 to lift the pressing head 403 upwards, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, and placing the molded green brick on the upper surface of the base 5 in order;
and step four, transferring the green bricks into a steam curing chamber, placing the green bricks in order, heating the temperature in the curing chamber to 105 ℃ at the heating rate of 15 ℃/h, then preserving the heat at 95 ℃ for 19h, reducing the temperature in the curing chamber to 33 ℃ at the cooling rate of 18 ℃/h after heat preservation, discharging the indoor steam, taking out the bricks, and delivering a finished product stock for two days to obtain the ecological bricks.
The slag is produced by a domestic waste incineration power plant and is subjected to metal extraction.
The water-strengthening agent is formed by mixing polyvinyl alcohol and hydroxypropyl methyl cellulose in a ratio of 1: 1.
And in the third step, the pressing and forming pressure of the green brick forming machine is 20MPa, the pressurizing time is 60s, and the pressure maintaining time is 120 s.
Example 3
A preparation process of an ecological brick taking household garbage incinerator slag as a raw material specifically comprises the following steps:
step one, putting 60 parts by weight of slag into a drying oven for drying, adding the dried slag into a ball mill, performing ball milling, sieving the slag with a 300-mesh sieve, taking the slag at the bottom of the sieve for later use, and returning the slag on the sieve to the ball mill for ball milling again;
step two, dissolving 0.2 part by weight of water intensifier in water to prepare a water intensifier aqueous solution with the mass fraction of 1% for later use, uniformly mixing 5 parts by weight of cement, 6 parts by weight of gypsum powder, 12 parts by weight of lime powder and 3 parts by weight of sodium silicate, and then sieving the mixture through a 200-mesh sieve to obtain mixed powder, adding the slag sieved in the step one into the mixed powder, then adding the water intensifier aqueous solution for stirring and mixing, transferring the mixture into a wheel mill after mixing, and performing wheel milling treatment to obtain a brick raw material for later use;
step three, adding the brick raw material after wheel rolling into a feed hopper 101 of a green brick forming machine, rotating to open a sealing baffle plate 102 at the bottom end of the feed hopper 101, so that the brick raw material falls into a pushing frame 203 from the bottom end of the feed hopper 101, rotating to close the sealing baffle plate 102 at the bottom end of the feed hopper 101 after the brick raw material is fully stacked in the pushing frame 203, controlling a pushing cylinder 210, enabling a pushing big arm 208 and a pushing small arm 209 to push the pushing frame 203 to move towards a direction close to a forming female die 304, moving the pushing frame 203 to be right above the forming female die 304, pushing the brick raw material in the pushing frame 203 into a forming cavity 3041 of the forming female die 304, controlling the pushing cylinder 210 after the forming cavity 3041 is fully filled with the brick raw material, pulling the pushing frame 203 back to the pushing supporting plate 202 from right above the forming female die 304, simultaneously bringing redundant brick raw material on the forming female die 304 back to the pushing supporting plate 202, controlling a material pressing cylinder 406, pressing the pressing head 403 downwards, compacting and molding the brick raw material in the molding cavity 3041, after pressurization and pressure maintaining, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, pushing out the green brick in the molding cavity 3041 by the pressing head 403, then controlling the pressing cylinder 406 to lift the pressing head 403 upwards, controlling the molding lifting cylinder 305 to lift the molding female die 304 upwards, and placing the molded green brick on the upper surface of the base 5 in order;
and step four, transferring the green bricks into a steam curing chamber, placing the green bricks in order, heating the temperature in the curing chamber to 110 ℃ at the heating rate of 15 ℃/h, then preserving the heat at 100 ℃ for 20h, reducing the temperature in the curing chamber to 35 ℃ at the cooling rate of 20 ℃/h after heat preservation, discharging the indoor steam, taking out the bricks, and delivering a finished product stock for two days to obtain the ecological brick.
The slag is produced by a domestic waste incineration power plant and is subjected to metal extraction.
The water-strengthening agent is formed by mixing polyacrylamide and sodium polyacrylate in a ratio of 2: 1.
And in the third step, the pressing and forming pressure of the green brick forming machine is 20MPa, the pressurizing time is 60s, and the pressure maintaining time is 120 s.
Referring to fig. 1-7, the green brick forming machine in the above embodiment includes a feeding portion 1, a pushing portion 2, a forming portion 3, a pressing portion 4, a base 5 and a frame assembly 6, where the pushing portion 2 is located at one side of the frame assembly 6, the feeding portion 1 is located above the pushing portion 2, the pressing portion 4 is located above the inside of the frame assembly 6, the forming portion 3 is located inside the frame assembly 6, the forming portion 3 is located below the pressing portion 4, and the base 5 is located below the forming portion 3;
the material pushing part 2 comprises a material pushing support 201, a material pushing support plate 202, a material pushing frame 203, a material pushing guide rail 204, a frame body support rod 205, a roller 206, a material pushing support 207, a material pushing big arm 208, a material pushing small arm 209 and a material pushing cylinder 210, wherein the material pushing support plate 202 is fixedly arranged on the material pushing support 201, the material pushing frame 203 is positioned above the material pushing support plate 202, the bottom end of the material pushing frame 203 is connected with the upper surface of the material pushing support plate 202 in a sliding manner, two frame body support rods 205 which are oppositely arranged are respectively arranged on two sides of the material pushing frame 203, one end of each frame body support rod 205 is fixedly connected with the outer wall of the material pushing frame 203, the roller 206 is arranged at the other end of each frame body support rod 205, the roller 206 is rotatably connected with the frame body support rods 205, two material pushing guide rails 204 which are oppositely arranged up and down, the roller 206 is connected with the pushing guide rail 204 in a rolling manner, two opposite pushing supports 207 are arranged above one side of the pushing support 201 far away from the rack assembly 6, the pushing supports 207 are fixedly connected with the pushing support 201, a pushing large arm 208 is installed between the two pushing supports 207, the top end of the pushing large arm 208 is rotatably connected with the pushing supports 207, two opposite pushing small arms 209 are arranged at the bottom end of the pushing large arm 208, one end of each pushing small arm 209 is rotatably connected with the bottom end of the pushing large arm 208, the other end of each pushing small arm 209 is rotatably connected with the outer wall of the pushing frame 203, two opposite pushing cylinders 210 are arranged above the pushing frame 203, the bottom ends of the pushing cylinders 210 are hinged with the pushing support 201, and the output ends of the pushing cylinders 210 are hinged with the center of the pushing large arm 208;
The feeding portion 1 comprises a feeding hopper 101, two opposite sides of the feeding hopper 101 are fixed with fixing lugs 103, the bottom of the fixing lugs 103 is fixedly connected with the top end of a material pushing support 201, a material sealing baffle plate 102 is arranged at the bottom end of the feeding hopper 101, the upper surface of the material sealing baffle plate 102 is matched with the bottom end of the feeding hopper 101, two opposite sides of the material sealing baffle plate 102 are fixed with rotating mounting plates, and the top end of each rotating mounting plate is connected with the outer wall of the feeding hopper 101 in a rotating mode.
The forming part 3 comprises a connecting frame 301, a connecting rod 302, a lower sliding block 303, a forming female die 304 and a forming lifting cylinder 305, the connecting frame 301 is positioned above the frame assembly 6, the forming lifting cylinder 305 is positioned below the center of the connecting frame 301, the output end of the forming lifting cylinder 305 is fixedly connected with the connecting frame 301, the bottom end of the forming lifting cylinder 305 is fixedly connected with the top mounting plate 603, the two connecting rods 302 are respectively positioned at two ends of the connecting frame 301, the top end of each connecting rod 302 is fixedly connected with the connecting frame 301, the bottom end of each connecting rod 302 penetrates through the top end of the frame body 601 to be fixedly connected with the lower sliding block 303, the two sides of the lower sliding blocks 303 are slidably connected with the sliding columns 604, the forming female die 304 is located between the two lower sliding blocks 303, the two sides of the forming female die 304 are fixedly connected with the lower sliding blocks 303, a plurality of forming cavities 3041 which are uniformly distributed are formed in the forming female die 304, and the forming cavities 3041 penetrate through the forming female die 304.
The material pressing portion 4 comprises a sliding base 401, a mounting frame 402, a material pressing head 403, a damping rubber block 404, a base support 405 and a material pressing cylinder 406, two sides of the sliding base 401 are connected with a sliding column 604 in a sliding mode, the top end center of the sliding base 401 is fixedly provided with the two oppositely arranged base supports 405 and two material pressing cylinders 406 are located above the base supports 405, a cylinder body of each material pressing cylinder 406 is fixedly connected with a top mounting plate 603, the output end of each material pressing cylinder 406 is hinged to the base support 405, the mounting frame 402 is mounted below the sliding base 401, the damping rubber block 404 is mounted between the sliding base 401 and the mounting frame 402, the material pressing heads 403 which are uniformly distributed are fixedly mounted at the bottom end of the mounting frame 402, and the material pressing heads 403 are matched with a forming cavity 3041.
The height of the upper surface of the pushing support plate 202 is the same as the height of the upper surface of the forming female die 304 when the lower surface of the forming female die 304 is attached to the upper surface of the base 5, and one side edge of the pushing support plate 202 close to the forming female die 304 is matched with the forming female die 304.
The working principle of the invention is as follows:
when the green brick forming machine is used, firstly, the contraction of the output end of the forming lifting cylinder 305 is controlled, the output end of the forming lifting cylinder 305 drives the connecting frame 301 to move downwards, the connecting frame 301 drives the lower slide block 303 to slide downwards along the slide column 604 through the connecting rod 302, the lower slide block 303 drives the forming female die 304 to move downwards, the action of the forming lifting cylinder 305 is stopped until the lower surface of the forming female die 304 is contacted with the upper surface of the base 5, the brick raw material after wheel grinding is added into the feed hopper 101, the sealing baffle plate 102 at the bottom end of the feed hopper 101 is rotated and opened, so that the brick raw material falls into the pushing frame 203 from the bottom end of the feed hopper 101, when the brick raw material in the pushing frame 203 is fully stacked, the sealing baffle plate 102 at the bottom end of the feed hopper 101 is rotated and closed, the contraction of the output end of the pushing cylinder 210 is controlled, the output end of the pushing cylinder 210 drives the pushing big arm 208 to rotate, the pushing big, the rollers 206 on the two sides of the pushing frame 203 roll on the pushing guide rail 204, the pushing frame 203 is moved to the position right above the forming female die 304, the brick raw material in the pushing frame 203 enters the forming cavity 3041 of the forming female die 304, after the forming cavity 3041 is filled with the brick raw material, the output end of the pushing cylinder 210 is controlled to extend, the output end of the pushing cylinder 210 drives the pushing big arm 208 to rotate, the pushing big arm 208 drives the pushing small arm 209 to move, the pushing small arm 209 pulls the pushing frame 203 back to the pushing supporting plate 202 from the position right above the forming female die 304, the pushing frame 203 simultaneously drives the redundant brick raw material on the forming female die 304 to return to the pushing supporting plate 202, the waste of the scattered raw material is effectively avoided, the output end of the pressing cylinder 406 is controlled to extend, the output end of the pressing cylinder 406 drives the sliding base 401 to slide downwards along the sliding column 604, the sliding base 401 drives the mounting frame 402 to move downwards, the mounting frame 402 drives the, compacting and molding the brick raw material in the molding cavity 3041, after pressurization and pressure maintaining, controlling the extension of the output end of the molding lifting cylinder 305, lifting the molding female die 304 upwards, pushing out the brick blank in the molding cavity 3041 by the material pressing head 403, then controlling the contraction of the output end of the material pressing cylinder 406, lifting the material pressing head 403 upwards to return to the initial position, controlling the contraction and extension of the output end of the molding lifting cylinder 305, lifting the molding female die 304 upwards for a certain distance, separating the molded brick blank from the molding cavity 3041, and placing the molded brick blank on the upper surface of the base 5 in order.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (9)
1. A preparation process of an ecological brick taking household garbage incinerator slag as a raw material is characterized by comprising the following steps: the method specifically comprises the following steps:
firstly, putting 40-60 parts by weight of slag into a drying box for drying, adding the dried slag into a ball mill, sieving the dried slag through a 100-fold 300-mesh sieve after ball milling, taking the slag at the bottom of the sieve for later use, and returning the slag on the sieve to the ball mill for ball milling again;
step two, dissolving 0.1-0.2 part by weight of water intensifier in water to prepare a water intensifier aqueous solution with the mass fraction of 0.5-1% for later use, uniformly mixing 3-5 parts by weight of cement, 4-6 parts by weight of gypsum powder, 10-12 parts by weight of lime powder and 2-3 parts by weight of sodium silicate, and then sieving with a 200-mesh sieve to obtain mixed powder, adding the slag sieved in the step one into the mixed powder, then adding the water intensifier aqueous solution for stirring and mixing, transferring the mixture into a wheel mill after mixing, and performing wheel milling treatment to obtain a brick raw material for later use;
step three, adding the brick raw materials after wheel grinding into a feed hopper (101) of a green brick forming machine, rotating to open a sealing baffle plate (102) at the bottom end of the feed hopper (101), enabling the brick raw materials to fall into a pushing frame (203) from the bottom end of the feed hopper (101), rotating to close the sealing baffle plate (102) at the bottom end of the feed hopper (101) after the brick raw materials in the pushing frame (203) are fully stacked, controlling a pushing cylinder (210), enabling a pushing big arm (208) and a pushing small arm (209) to push the pushing frame (203) to move towards the direction close to a forming female die (304), moving the pushing frame (203) to be right above the forming female die (304), pushing the brick raw materials in the pushing frame (203) into a forming cavity (3041) of the forming female die (304), controlling the pushing cylinder (210) after the forming cavity (3041) is fully filled with the brick raw materials, and pulling the pushing frame (203) from the right above the forming female die (304) to a pushing supporting plate (202), pushing the material frame (203) and simultaneously bringing the redundant brick raw materials on the forming female die (304) back to the material pushing supporting plate (202), controlling a material pressing cylinder (406) to press a material pressing head (403) downwards, compacting and forming the brick raw materials in the forming cavity (3041), controlling a forming lifting cylinder (305) to lift the forming female die (304) upwards after pressurization and pressure maintaining, pushing out the brick blanks in the forming cavity (3041) by the material pressing head (403), then controlling the material pressing cylinder (406) to lift the material pressing head (403) upwards, controlling the forming lifting cylinder (305) to lift the forming female die (304) upwards, and placing the formed brick blanks on the upper surface of the base (5) in order;
and step four, transferring the green bricks into a steam curing chamber for placing neatly, heating the temperature in the curing chamber to 110 ℃ at the heating rate of 15 ℃/h, then preserving the heat at the temperature of 90-100 ℃ for 18-20h, reducing the temperature in the curing chamber to 30-35 ℃ at the cooling rate of 15-20 ℃/h after heat preservation, discharging the indoor steam, taking out the bricks, and delivering the bricks to a finished product storage for two days to obtain the ecological bricks.
2. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to the claim 1, which is characterized in that: the slag is produced by a domestic waste incineration power plant and is subjected to metal extraction.
3. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to the claim 1, which is characterized in that: the water-strengthening agent is one or more of polyvinyl alcohol, hydroxypropyl methylcellulose, polyacrylamide and sodium polyacrylate which are mixed in any proportion.
4. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to the claim 1, which is characterized in that: and in the third step, the pressing and forming pressure of the green brick forming machine is 20MPa, the pressurizing time is 60s, and the pressure maintaining time is 120 s.
5. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to the claim 1, which is characterized in that: the green brick forming machine comprises a feeding part (1), a pushing part (2), a forming part (3), a pressing part (4), a base (5) and a rack assembly (6), wherein the pushing part (2) is positioned on one side of the rack assembly (6), the feeding part (1) is positioned above the pushing part (2), the pressing part (4) is positioned above the inside of the rack assembly (6), the forming part (3) is positioned inside the rack assembly (6), the forming part (3) is positioned below the pressing part (4), and the base (5) is positioned below the forming part (3);
the material pushing part (2) comprises a material pushing support (201), a material pushing support plate (202), a material pushing frame (203), a material pushing guide rail (204), a frame body support rod (205), a roller (206), a material pushing support (207), a material pushing big arm (208), a material pushing small arm (209) and a material pushing cylinder (210), wherein the material pushing support plate (202) is fixedly arranged on the material pushing support (201), the material pushing frame (203) is positioned above the material pushing support plate (202), the bottom end of the material pushing frame (203) is connected with the upper surface of the material pushing support plate (202) in a sliding manner, two frame body support rods (205) which are oppositely arranged are respectively arranged on two sides of the material pushing frame (203), one end of each frame body support rod (205) is fixedly connected with the outer wall of the material pushing frame (203), the roller (206) is arranged on the other end of each frame body support rod (205), the roller (206) is rotatably connected with each frame body support rod (205), one end of each pushing guide rail (204) is fixedly connected with a pushing support (201), the roller (206) is positioned between the two pushing guide rails (204), the roller (206) is in rolling connection with the pushing guide rails (204), two pushing supports (207) which are oppositely arranged are arranged above one side of each pushing support (201) far away from the rack assembly (6), the pushing supports (207) are fixedly connected with the pushing supports (201), a pushing big arm (208) is arranged between the two pushing supports (207), the top end of each pushing big arm (208) is in rotating connection with the pushing supports (207), two pushing small arms (209) which are oppositely arranged are arranged at the bottom end of each pushing big arm (208), one end of each pushing small arm (209) is in rotating connection with the bottom end of each pushing big arm (208), the other end of each pushing small arm (209) is in rotating connection with the outer wall of the pushing frame (203), two pushing cylinders (210) which are oppositely arranged are arranged above the pushing frame (203), the bottom end of the material pushing cylinder (210) is hinged with the material pushing bracket (201), and the output end of the material pushing cylinder (210) is hinged with the center of the material pushing large arm (208);
frame subassembly (6) are including frame body (601), frame bottom plate (602), top mounting panel (603) and traveller (604), frame bottom plate (602) installation is fixed in frame body (601) bottom, top mounting panel (603) installation is fixed in frame body (601) top center, and frame body (601) both sides opposition respectively are provided with two travellers (604), the bottom and frame bottom plate (602) fixed connection of traveller (604), the top and frame body (601) fixed connection of traveller (604), the other end and the inside both sides center fixed connection of frame body (601) that push away material guide rail (204), base (5) installation is fixed in the center of frame bottom plate (602) upper surface, and base (5) both sides top installation is fixed with striker plate (501).
6. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to claim 5, wherein the process comprises the following steps: feeding portion (1) includes feeder hopper (101), the both sides opposition of feeder hopper (101) is fixed with fixed lug (103), the bottom of fixed lug (103) and the top fixed connection who pushes away material support (201), feeder hopper (101) bottom are equipped with seals material baffle (102), the upper surface and feeder hopper (101) bottom of sealing material baffle (102) cooperate, and the both sides opposition of sealing material baffle (102) is fixed with the rotation mounting panel, the top and the feeder hopper (101) outer wall rotation of rotation mounting panel are connected.
7. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to claim 5, wherein the process comprises the following steps: the molding part (3) comprises a connecting frame (301), a connecting rod (302), a lower sliding block (303), a molding female die (304) and a molding lifting cylinder (305), the connecting frame (301) is positioned above the frame assembly (6), the molding lifting cylinder (305) is positioned below the center of the connecting frame (301), the output end of the molding lifting cylinder (305) is fixedly connected with the connecting frame (301), the bottom end of the molding lifting cylinder (305) is fixedly connected with a top mounting plate (603), the two connecting rods (302) are respectively positioned at the two ends of the connecting frame (301), the top end of the connecting rod (302) is fixedly connected with the connecting frame (301), the bottom end of the connecting rod (302) penetrates through the top end of the frame body (601) and the lower sliding block (303), the two sides of the sliding block (303) are slidably connected with a sliding column (604), the molding female die (304) is positioned between the two lower sliding blocks (303), two sides of the forming female die (304) are fixedly connected with the lower sliding block (303), a plurality of forming cavities (3041) are uniformly distributed in the forming female die (304), and the forming cavities (3041) penetrate through the forming female die (304).
8. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to claim 5, wherein the process comprises the following steps: the material pressing part (4) comprises a sliding base (401), a mounting frame (402), material pressing heads (403), a damping rubber block (404), a base support (405) and material pressing cylinders (406), wherein two sides of the sliding base (401) are slidably connected with a sliding column (604), the top center of the sliding base (401) is fixedly provided with the two oppositely arranged base supports (405), the two material pressing cylinders (406) are positioned above the base support (405), a cylinder body of each material pressing cylinder (406) is fixedly connected with a top mounting plate (603), the output end of each material pressing cylinder (406) is hinged with the base support (405), the mounting frame (402) is arranged below the sliding base (401), the damping rubber block (404) is arranged between the sliding base (401) and the mounting frame (402), and the material pressing heads (403) which are uniformly distributed are fixedly arranged at the bottom end of the mounting frame (402), the material pressing head (403) is matched with the forming cavity (3041).
9. The process for preparing the ecological brick by using the household garbage incineration slag as the raw material according to claim 7, wherein the process comprises the following steps: the height of the upper surface of the pushing support plate (202) is the same as the height of the upper surface of the forming female die (304) when the lower surface of the forming female die (304) is attached to the upper surface of the base (5), and one side edge of the pushing support plate (202) close to the forming female die (304) is matched with the forming female die (304).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011451568.7A CN112549252A (en) | 2020-12-09 | 2020-12-09 | Preparation process of ecological brick taking household garbage incinerator slag as raw material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011451568.7A CN112549252A (en) | 2020-12-09 | 2020-12-09 | Preparation process of ecological brick taking household garbage incinerator slag as raw material |
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Cited By (2)
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| CN114507026A (en) * | 2022-04-19 | 2022-05-17 | 佛山市绿富域环保科技有限公司 | Environment-friendly ecological brick taking household garbage incinerator slag as raw material and preparation process thereof |
| CN114888927A (en) * | 2022-05-09 | 2022-08-12 | 江西中一梦园住宅工业有限公司 | Forming equipment for producing autoclaved lightweight aerated concrete blocks |
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