CN113400454A - Automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge - Google Patents
Automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge Download PDFInfo
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- CN113400454A CN113400454A CN202110624557.2A CN202110624557A CN113400454A CN 113400454 A CN113400454 A CN 113400454A CN 202110624557 A CN202110624557 A CN 202110624557A CN 113400454 A CN113400454 A CN 113400454A
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- 239000011449 brick Substances 0.000 title claims abstract description 85
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000010802 sludge Substances 0.000 title claims abstract description 24
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 239000002689 soil Substances 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 70
- 239000000203 mixture Substances 0.000 claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 239000004568 cement Substances 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 238000005360 mashing Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000004927 clay Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 241000269793 Cryothenia peninsulae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- 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
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
- B28C1/14—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom
- B28C1/18—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for comminuting clay lumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to the technical field of treatment and utilization of building sludge waste, and discloses an automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge, which comprises the following steps: s1, metering and batching, namely crushing coarse slag into coarse materials and mashing mud cakes into fine materials, and sequentially conveying the fine materials to a metering hopper of a batching machine to prepare mixed aggregate; s2, mixing, stirring and solidifying, conveying the mixed aggregate to an upper hopper, driving the upper hopper to be above the stirrer, and discharging the mixed aggregate into the stirrer; sequentially and respectively adding cement and a curing agent solution to stir to form a mixture; s3, performing vibration pressing molding by using a table die, conveying the mixture to the die through a conveying cloth belt, applying pressure to the surface of the mixture by using a pressure head, and pressing the mixture into a green brick by using the resonance of a vibration table and the die; s4, discharging finished products, namely placing the green bricks on a supporting plate, conveying the green bricks together with the supporting plate and the green bricks to a laminating machine through a conveying frame, and stacking the green bricks into a plurality of layers of finished bricks; and S5, maintaining the finished product, and conveying the finished product brick to a maintenance area for maintenance.
Description
Technical Field
The invention relates to the technical field of treatment and utilization of building sludge waste, in particular to an automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge.
Background
With the continuous and rapid increase of the economy of China, the construction industry is rapidly advanced, the discharge amount of various construction wastes is increased year by year, and the volume of earth and stone excavated in the deep foundation pit is larger and larger. Along with the popularization of the comprehensive utilization of construction wastes, the technology of washing, filtering and sand making of foundation pit soil and mud squeezing treatment is popularized, and the concrete process is that the foundation pit soil is firstly filtered, and coarse particles are sieved to form coarse slag; and then washing and filtering the screened silt through a sand washer to generate clean sand and mud. The slurry can then be processed through a press to convert it into a colorless water and a plastic cake; the sand generated after the foundation pit soil is treated can be used for mixing concrete in a mixing plant and temporarily building on site; the water can be used for on-site vehicle washing, spraying, temporary construction and the like, and the resource recycling is realized.
Coarse slag sieved before sand washing is generally particles with the particle size larger than 4mm, and the mass ratio of round gravel to angular gravel is larger than 50%; the mud cake produced after the mud is squeezed is mainly plastic cake-shaped powdery clay with certain viscosity, the particle size of the clay is less than 0.075mm, the water content is 30-40%, and the clay content is 30-50%. The coarse slag and mud cakes are mostly dumped by outward transportation at present, the overall outward transportation amount is still large, the coarse slag and mud cakes generated in foundation pit construction are not fully and comprehensively utilized, and a dumping field needs to occupy a large amount of land resources, along with a series of environmental and ecological problems.
Disclosure of Invention
The invention aims to provide an automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge, and aims to solve the problems that coarse sludge and sludge cakes generated in foundation pit construction are not fully utilized, land resources are occupied, and the ecological environment is influenced in the prior art.
The invention is realized in this way, the construction method for making bricks by automatic solidification based on the foundation pit soil washing, filtering and squeezing the residual sludge, mainly comprises the following steps:
s1, metering and batching, namely crushing coarse slag into coarse materials and mashing mud cakes into fine materials, respectively sending the coarse materials and the fine materials into corresponding storage bins, and then sequentially conveying the coarse materials and the fine materials to a metering hopper of a batching machine for metering and batching to prepare mixed aggregate;
s2, mixing, stirring and solidifying, namely conveying the mixed aggregate prepared in the step S1 to a feeding hopper arranged beside the metering hopper, starting a motor to drive the feeding hopper to slide to the upper part of the stirring machine, and discharging the mixed aggregate into the stirring machine; a spiral conveyor is arranged above the stirrer, and the spiral conveyor is started to add proportioned cement for stirring; then injecting the proportioned curing agent solution into the stirrer through a water pump for stirring to form a mixture;
s3, performing vibration compression molding by using a table die, wherein the block molding machine comprises a die, a pressure head and a vibration table, the mixture in the step S2 is conveyed to the die through a conveying distribution belt, the pressure head is driven by an upper oil cylinder to downwards apply pressure on the surface of the mixture, and meanwhile, the vibration table and the die are controlled to start to resonate through a vibration exciter, so that the mixture is automatically solidified and compacted to be pressed into a green brick;
s4, discharging finished products, namely placing the green bricks in the step S3 on a supporting plate, conveying the green bricks together with the supporting plate and the green bricks to a laminating machine through a conveying frame, and stacking the green bricks into a plurality of layers of finished bricks through the laminating machine;
and S5, curing finished products, namely conveying the finished bricks stacked in the step S4 to a curing area.
Further, in step S1, the particle size of the coarse slag is greater than 4 mm;
and crushing the coarse slag, namely crushing the coarse slag with the particle size larger than 4mm by using a crusher according to the requirement of the particle size of the coarse slag used for making bricks, and processing the crushed coarse slag into the coarse material which is suitable for making bricks.
Further, in the step S1, the qualified range of the water content of the mud cakes is 5% -15%;
and (3) mashing the mud cakes, and conveying the mud cakes with the water content of more than 15% to a specified storage yard by using a loader for manual mashing and airing to obtain the fine materials meeting the requirements of brick making.
Further, in step S2, the feeding hopper is movably mounted on a feeding rack rail, an upper end of the feeding rack rail extends above the stirring machine, and the feeding hopper slides back and forth along the direction of the feeding rack rail under the driving of the motor.
Further, in step S2, storing the cement in a horizontal cement silo, and conveying the cement to the stirrer through the screw conveyor according to a designed proportion and then stirring for 2-3 minutes;
after the cement is added and stirred, the curing agent and water are prepared into a curing agent solution according to the designed proportion, the curing agent solution is stored in a plastic tank, the curing agent solution is conveyed into the stirrer through a valve connected with the bottom of the plastic tank through a water suction pump, and the stirring is carried out for 2-3 minutes to form the mixture.
Further, in step S3, one end of the material conveying and distributing belt is connected to the lower side of the stirrer, the other end of the material conveying and distributing belt is connected to the upper side of the material distributing vehicle, the mixture is conveyed to the upper side of the material distributing vehicle through the material conveying and distributing belt and falls onto the material distributing vehicle through a blanking hopper, and the material distributing vehicle conveys the mixture to the mold.
Furthermore, the vibration exciter mainly comprises at least one pair of rotating shafts, the rotating shafts are provided with the same eccentric blocks, constant exciting force is generated through the eccentric blocks, the exciting force generated by the eccentric blocks can be decomposed into force in the horizontal direction and force in the vertical direction, and the force in the vertical direction is mutually superposed to form vertical directional vibration; the vibration table and the die generate resonance through the vertical directional vibration of the vibration exciter.
Furthermore, lower oil cylinders are arranged on two sides of the rack, the lower oil cylinders on the two sides are arranged corresponding to two side edges of the mold, a convex part connected with the side edge of the mold extends towards the mold from the inner side of the lower oil cylinders, and the convex part supports the side edge of the mold to complete green brick demolding.
Further, the conveying frame comprises an active conveying area and a passive conveying area, a travel switch for triggering and starting the plate stacking machine is arranged at the tail end of the passive conveying area, when the next supporting plate is conveyed to the passive conveying area, the previous supporting plate is pushed to advance until the travel switch is triggered, and the plate stacking machine is started automatically.
Further, the supporting plate is sent below the die through a plate feeder before the mixture is arranged;
after the elevator drives at least two brick blanks to rise to a set height, the stacking machine horizontally moves forwards to a stacking area along the slide rail, the elevator descends to stack the supporting plate and the brick blanks on the stacking machine to a plurality of layers, then the elevator automatically rises to return to the original position to wait for the next action, the stacking machine carries finished bricks and moves backwards to exit the stacking area to wait for a forklift to transfer to a maintenance area.
Compared with the prior art, the automatic curing brick making construction method based on the foundation pit soil washing, filtering and squeezing residual sludge provided by the invention comprises the steps of firstly, respectively crushing coarse sludge and sludge cakes generated in construction into coarse materials and fine materials, then preparing mixed aggregate as raw materials suitable for brick making, then adding cement and curing agent solution through conveying equipment, stirring by using a stirrer to form a mixture, then automatically curing and pressing the mixture into a green brick through a block forming machine, and finally conveying the green brick to a laminator to be stacked into a plurality of layers of finished bricks so as to be conveniently conveyed to a curing area; therefore, through the construction steps, the mud generated in the foundation pit construction can be processed to form bricks, and the effects of recycling the mud, improving the land utilization rate and protecting the environment are achieved.
Drawings
FIG. 1 is a schematic view of a production line for brick making according to an embodiment of the present invention;
FIG. 2 is a front view of a block machine provided by an embodiment of the present invention;
FIG. 3 is a side view of a block machine provided by an embodiment of the present invention;
fig. 4 is a construction flow framework diagram provided in the embodiment of the present invention.
In the figure: 100-proportioning machine, 200-feeding hopper, 300-feeding rack rail, 400-stirring machine, 401-stirring hopper, 500-screw conveyer, 600-block forming machine, 601-mould, 602-pressure head, 603-vibration table, 604-vibration exciter, 605-upper oil cylinder, 606-lower oil cylinder, 700-conveying cloth belt, 800-conveying frame, 900-laminating machine, 110-cloth vehicle, 210-supporting plate, 310-blanking hopper and 410-frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-4, the preferred embodiment of the present invention is shown.
The automatic curing brick making construction method based on the foundation pit soil washing, filtering and squeezing residual sludge comprises a proportioning machine 100 for metering and proportioning coarse materials and fine materials, a stirrer 400 for stirring the coarse materials and the fine materials into mixed aggregate, adding cement and curing agent solution into the mixed aggregate, and a block forming machine 600 for compacting and pressing the mixed aggregate into green bricks;
in practical application, the brick is manufactured by the following steps:
s1, metering and batching, namely crushing coarse slag into coarse materials by adopting a crusher, mashing the coarse materials and mud cakes into fine materials, and respectively feeding the fine materials into corresponding storage bins; specifically, the coarse material and the fine material are respectively loaded into two independently arranged storage bins, firstly, the belt conveyor of the coarse material storage bin starts to work, a weighing hopper is arranged below the two storage bins, the coarse material is conveyed into the weighing hopper of the batching machine 100, and when the weight of the coarse material of the weighing hopper reaches a set value, the belt conveyor of the coarse material storage bin stops running; then automatically starting a belt conveyor of the fine material storage bin, and stopping the belt conveyor of the fine material storage bin when the weight of the material of the weighing hopper reaches the sum of the set values of the coarse material and the fine material so as to prepare mixed aggregate;
s2, mixing, stirring and curing, wherein the bottom of the metering hopper is provided with an opening and a feeding belt, a pithead is dug in the ground at one end of a discharge hole of the feeding belt, a feeding hopper 200 is placed into the pithead, and the mixed aggregate prepared in the step S1 is conveyed to fall into the feeding hopper 200;
in practical application, the feeding hopper 200 is connected with a motor through a steel wire rope, so that the feeding hopper 200 is driven to slide above the stirring machine 400 by starting the motor, and mixed aggregate is discharged into the stirring machine 400; a screw conveyor 500 filled with cement is arranged above the stirrer 400, the proportioned cement is added into the stirrer 400 by starting the screw conveyor 500, and the cement is used as a cementing material and stirred for a certain time; then storing the proportioned curing agent solution in a PE plastic tank, assembling a valve at the bottom of the PE plastic tank, and injecting the curing agent solution into a stirrer 400 through connecting a water pump with the valve for stirring to form a mixture;
the main components of the curing agent are chloride, sulfate and an alkali activator, the curing agent generates strong charged ions in a state of dissolving liquid in water, the strong ions are utilized to destroy the double electric layer structure on the surface of the mixed particles, the chemical action force between the surface of the particles and the water is weakened, the surface property of the particles is fundamentally changed, the particles form water resistance with good strength under the action of pressure, certain ion exchange is also included to promote the particles to have good activity, so that the stability of the mixture is promoted, certain strength is achieved, and the compactness and the pressure intensity of later-stage manufactured green bricks are improved by adding the curing agent solution;
s3, performing vibration compression molding by using a platform die, wherein the vibration compression molding comprises a block molding machine 600, the block molding machine 600 comprises a die 601, a pressure head 602 and a vibration platform 603, the die 601 is arranged below the pressure head 602, the vibration platform 603 is arranged below the die 601, the mixture obtained in the step S2 is conveyed to the die 601 through a conveying cloth belt 700, and an upper oil cylinder 605 is connected above the pressure head 602, so that the pressure head 602 is driven by the upper oil cylinder 605 to apply pressure to the surface of the mixture downwards, and meanwhile, the vibration exciter 604 controls the vibration platform 603 to start to resonate with the die 601, and the mixture is automatically solidified and compacted to be pressed into a brick blank;
s4, discharging finished products, namely placing the green bricks in the step S3 on the supporting plates 210, conveying the green bricks together with the supporting plates 210 and the green bricks to a laminator 900 through the conveying frame 800, and stacking the green bricks into a plurality of layers of finished bricks through the laminator 900;
and S5, maintaining finished products, namely conveying the finished bricks stacked in the step S4 to a maintenance area, packaging and maintaining for 24 hours.
To sum up, firstly, coarse slag and mud cakes generated in construction are respectively crushed into coarse materials and fine materials, then mixed aggregate is prepared to serve as raw materials suitable for brick making, then cement and curing agent solution are added through conveying equipment, stirring is carried out by using a stirrer 400 to form a mixture, the mixture is automatically cured and pressed into green bricks through a block forming machine 600, and finally the green bricks are conveyed to a plate stacking machine 900 and stacked into a plurality of layers of finished bricks to be conveniently conveyed to a curing area; therefore, through the construction steps, the sludge generated in the foundation pit construction can be automatically solidified and processed to form bricks, so that the effects of recycling the sludge, improving the land utilization rate and protecting the environment are realized.
In step S1, the particle size of coarse slag sieved out before sand washing is larger than 4mm, and the mass ratio of round gravel to corner gravel is larger than 50%; according to the requirement of the particle size of the coarse slag used for making bricks, the coarse slag with the particle size larger than 4mm is crushed by a crusher to be processed into the coarse material which is suitable for making bricks.
In step S1, the mud cake generated after the mud is squeezed is mainly plastic cake-shaped powdery clay with certain viscosity, the particle size of the clay is less than 0.075mm, the water content is 30-40%, and the clay content is 30-50%; and (3) conveying the mud cakes with the water content of more than 15% to a specified storage yard by a loader for manual mashing and airing, and then measuring the water content of the fine materials in time to ensure that the water content of the fine materials is controlled between 8% and 10%, so that the fine materials are processed into the fine materials meeting the requirements of brick making.
The raw materials meeting the brick making regulation are prepared by respectively processing the coarse slag and the mud cakes according to the requirements of particle size and water content, so that the success rate and the quality of brick making are improved.
In step S2, a pulley is disposed at the bottom of the feeding hopper 200, the feeding hopper 200 is movably mounted on the feeding frame rail 300 through the pulley, the feeding frame rail 300 is installed in an inclined manner, wherein the upper end of the feeding frame rail 300 extends to be connected to the upper side of the stirring machine 400, the feeding hopper 200 slides back and forth along the direction of the feeding frame rail 300 under the driving of a motor, and when the feeding hopper 200 slides to the upper side of the stirring machine 400, the feeding system is started to control the material door at the bottom of the feeding hopper 200 to open, so as to discharge the mixed aggregate into the stirring machine 400.
Through setting up work or material rest track 300, and with the assembly integration of feeding hopper 200 with work or material rest track 300, realized the production connected relation between proportioning machine 100 and mixer 400, conveniently mix the conveying of aggregate, improve degree of automation.
In the step S2, cement is P.O 42.5.5R, the cement is stored in a horizontal cement bin, the horizontal cement bin is square, the bottom of the horizontal cement bin is supported by a plurality of supporting legs, a discharging cone is a square cone, a bin body is formed by welding a frame consisting of corrugated boards and sectional materials, a spiral conveyor 500 is arranged at the bottom of the horizontal cement bin, and the cement can be metered and conveyed, so that the cement can be conveyed to a stirrer 400 through the spiral conveyor 500 according to the designed proportion and then stirred for 2-3 minutes;
after the cement is added and stirred, curing agent and water are prepared into curing agent solution according to the designed proportion, the curing agent solution is stored in a PE plastic tank, and is conveyed into a stirrer 400 through a valve connected with the bottom of the plastic tank through a water pump, and stirring is carried out for 2-3 minutes to form a mixture.
Referring to fig. 2-3, in step S3, a material distribution conveyor 700 is connected to a mixing hopper 401 below a mixer 400 at one end and connected to a material distribution vehicle 110 at the other end, and specifically, the block forming machine 600 has a frame 410, the upper end of the material distribution conveyor 700 is supported by the frame 410, a material dropping hopper 310 is mounted on the upper portion of the frame 410, and the material distribution vehicle 110 can pass through the frame 410 and be located below the material dropping hopper 310, so that the mixture can be conveyed to the material dropping hopper 310 through the material distribution conveyor 700 and then fall onto the material distribution vehicle 110 through the material dropping hopper 310, and the material distribution vehicle 110 is pushed forward to uniformly and smoothly convey the mixture into a mold 601.
Through setting up transmission cloth area 700, and through the assembly integration of transmission cloth area 700 with mixer 400, block forming machine 600, realized the production connection relation between mixer 400 and the block forming machine 600, make things convenient for the conveying of mix, improve degree of automation.
The vibration exciter 604 is mainly composed of at least one pair of identical rotating shafts, the pair of rotating shafts are provided with identical eccentric blocks, constant eccentric force or exciting force is generated through the eccentric blocks, and the exciting force generated by the eccentric blocks can be decomposed into force in the horizontal direction and the vertical direction;
the exciting forces in the horizontal direction can be mutually offset, and the forces in the vertical direction are mutually superposed to form vertical directional vibration so as to generate vibration in the vertical direction; the vibration table 603 and the mold 601 generate resonance through the vertical directional vibration of the vibration exciter 604, so that the mutual friction force in the mixture can be effectively reduced, and the mixture is vibrated and compacted under the combined action of the pressure of the upper pressure head 602, so that the green bricks in the mold 601 are quickly, uniformly and automatically densely molded.
Through the improved design and assembly of all parts of the block forming machine 600 and the arrangement of the distribution vehicle 110, the conveying and compression forming efficiency of the mixture is effectively improved, and the brick making quality effect is ensured.
The conveying frame 800 comprises an active conveying area and a passive conveying area, wherein the active conveying area is responsible for conveying bricks, a travel switch for triggering and starting the plate stacking machine 900 is arranged at the tail end of the passive conveying area, when the next supporting plate 210 is conveyed to the passive conveying area, the previous supporting plate 210 is pushed to advance until the travel switch is triggered, and the plate stacking machine 900 starts automatically, so that the purpose of automatically stacking bricks by the plate stacking machine 900 is achieved.
After the elevator drives at least two green bricks to rise to a set height, the laminator 900 moves forwards horizontally along the slide rail to a stacking area, and since the supporting plate 210 is conveyed to the position below the mold 601 through the plate supply machine before the mixture is arranged, the mixture is pressed into green bricks, the conveying frame 800 drives the supporting plate 210 to convey the green bricks to the laminator 900, and the elevator descends to stack the supporting plate 210 and the green bricks on the laminator 900 to a plurality of layers; then the elevator automatically rises to return to the original position to wait for the next action, the plate stacking machine 900 carries the finished bricks and moves backwards to exit from the stacking area, the finished bricks are waited to be transferred to the maintenance area by a forklift, the maintenance time is 24 hours, the strength of the finished bricks can reach 12-15Mpa after the finished bricks are maintained, and the PET plastic steel belts are used for packing, so that the collision is reduced, and the transportation is convenient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The automatic curing brick making construction method based on the foundation pit soil washing, filtering and squeezing of residual sludge is characterized by mainly comprising the following steps:
s1, metering and batching, namely crushing coarse slag into coarse materials and mashing mud cakes into fine materials, respectively sending the coarse materials and the fine materials into corresponding storage bins, and then sequentially conveying the coarse materials and the fine materials to a metering hopper of a batching machine for metering and batching to prepare mixed aggregate;
s2, mixing, stirring and solidifying, namely conveying the mixed aggregate prepared in the step S1 to a feeding hopper arranged beside the metering hopper, starting a motor to drive the feeding hopper to slide to the upper part of the stirring machine, and discharging the mixed aggregate into the stirring machine; a spiral conveyor is arranged above the stirrer, and the spiral conveyor is started to add proportioned cement for stirring; then injecting the proportioned curing agent solution into the stirrer through a water pump for stirring to form a mixture;
s3, performing vibration compression molding by using a table die, wherein the block molding machine comprises a die, a pressure head and a vibration table, the mixture in the step S2 is conveyed to the die through a conveying distribution belt, the pressure head is driven by an upper oil cylinder to downwards apply pressure on the surface of the mixture, and meanwhile, the vibration table and the die are controlled to start to resonate through a vibration exciter, so that the mixture is automatically solidified and compacted to be pressed into a green brick;
s4, discharging finished products, namely placing the green bricks in the step S3 on a supporting plate, conveying the green bricks together with the supporting plate and the green bricks to a laminating machine through a conveying frame, and stacking the green bricks into a plurality of layers of finished bricks through the laminating machine;
and S5, curing finished products, namely conveying the finished bricks stacked in the step S4 to a curing area.
2. The automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge as claimed in claim 1, wherein in step S1, the particle size of the coarse sludge is more than 4 mm;
and crushing the coarse slag, namely crushing the coarse slag with the particle size larger than 4mm by using a crusher according to the requirement of the particle size of the coarse slag used for making bricks, and processing the crushed coarse slag into the coarse material which is suitable for making bricks.
3. The automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge as claimed in claim 1, wherein in step S1, the qualified range of water content of the sludge cake is 5% -15%;
and (3) mashing the mud cakes, and conveying the mud cakes with the water content of more than 15% to a specified storage yard by using a loader for manual mashing and airing to obtain the fine materials meeting the requirements of brick making.
4. The method as claimed in claim 1, wherein in step S2, the feeding hopper is movably mounted on a feeding frame rail, the upper end of the feeding frame rail is connected to the upper side of the mixer in an extending manner, and the feeding hopper slides back and forth along the feeding frame rail under the driving of the motor.
5. The method for automatically curing and brickmaking as claimed in claim 1, wherein in step S2, the cement is stored in a horizontal cement silo, and is conveyed to the mixer by the screw conveyor according to a designed proportion and then is mixed for 2-3 minutes;
after the cement is added and stirred, the curing agent and water are prepared into a curing agent solution according to the designed proportion, the curing agent solution is stored in a plastic tank, the curing agent solution is conveyed into the stirrer through a valve connected with the bottom of the plastic tank through a water suction pump, and the stirring is carried out for 2-3 minutes to form the mixture.
6. The method for automatically curing and brickmaking as claimed in claim 1, wherein in step S3, one end of the cloth conveying belt is connected to the lower part of the mixer, the other end of the cloth conveying belt is connected to the upper part of a cloth vehicle, the mixture is conveyed to the upper part of the cloth vehicle through the cloth conveying belt and falls onto the cloth vehicle through a blanking hopper, and the cloth vehicle conveys the mixture to the mold.
7. The method for automatically curing and brickmaking construction based on foundation pit soil washing, filtering and squeezing residual sludge as claimed in claim 6, wherein the vibration exciter is mainly composed of at least one pair of rotating shafts, the rotating shafts are provided with the same eccentric blocks, constant exciting force is generated through the eccentric blocks, the exciting force generated by the eccentric blocks can be decomposed into horizontal force and vertical force, and the vertical force is mutually superposed to form vertical directional vibration; the vibration table and the die generate resonance through the vertical directional vibration of the vibration exciter.
8. The automatic curing brick making construction method based on foundation pit soil washing, filtering and squeezing residual sludge as claimed in claim 7, wherein lower oil cylinders are arranged on two sides of the frame, the lower oil cylinders on two sides are arranged corresponding to two sides of the mold, and a convex part connected with the side edge of the mold extends towards the mold from the inner side of the lower oil cylinder, and the convex part supports the side edge of the mold to complete green brick demoulding.
9. The method for automatically curing and brickmaking as claimed in claim 1, wherein the conveying frame comprises an active conveying area and a passive conveying area, the end of the passive conveying area is provided with a travel switch for triggering the laminator, when the next support plate is conveyed to the passive conveying area, the previous support plate is pushed to advance until the travel switch is triggered, and the laminator is automatically started.
10. The method for automatically curing and brickmaking construction based on foundation pit soil washing, filtering and squeezing residual sludge as claimed in claim 9, wherein the supporting plate is sent below the die through a plate feeder before the mixture is arranged;
after the elevator drives at least two brick blanks to rise to a set height, the stacking machine horizontally moves forwards to a stacking area along the slide rail, the elevator descends to stack the supporting plate and the brick blanks on the stacking machine to a plurality of layers, then the elevator automatically rises to return to the original position to wait for the next action, the stacking machine carries finished bricks and moves backwards to exit the stacking area to wait for a forklift to transfer to a maintenance area.
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Application publication date: 20210917 |