Building solid waste regenerated brick and preparation process thereof

Abstract

The invention provides a building solid waste regenerated brick and a preparation process thereof, belongs to the technical field of regenerated brick preparation, and solves the technical problems of low production automation degree, low preparation efficiency and the like of existing regenerated bricks. The regeneration brick comprises a square brick body, the two adjacent sides of the upper end of the square brick body are each provided with a lower wedge-shaped splicing plate and a wedge-shaped stop block, each lower wedge-shaped splicing plate is provided with two lower wedge-shaped grooves, the lower end of the square brick body is provided with a plurality of draining protrusions, the two adjacent sides of the lower end of the square brick body are each provided with an upper wedge-shaped splicing plate, and the upper wedge-shaped splicing plates are provided with a plurality of lower wedge-shaped grooves. An upper wedge-shaped groove and an upper blocking groove are formed in each upper wedge-shaped splicing plate. The preparation process comprises the following steps: entering the construction waste into a site; crushing and grading the raw materials; preparing materials; performing compression molding; performing steam curing; the regenerated brick is prepared through the technological processes of construction waste entering, raw material crushing and grading, burdening, compression molding and steam curing, the preparation process is high in automation degree and preparation efficiency, and the prepared regenerated brick is stable in structure and high in water permeability.

Description

Technical Field

[0001] The present invention belongs to the technical field of the preparation of recycled bricks, and relates to a building waste recycled brick, in particular to a building waste recycled brick and its preparation process. Background Art

[0002] A large amount of construction waste will be generated during urban construction. Construction waste has a wide range of erosive effects on our living environment. If the attitude of leaving construction waste unattended for a long time is adopted, it will have a bad impact on urban environmental sanitation, living conditions, land quality assessment, etc. At present, some permeable bricks on the market mainly use ceramics or ordinary permeable concrete bricks as raw materials. These two types of permeable bricks require a large amount of clay resources, and the excessive exploitation of clay resources will cause great damage to the environment.

[0003] For the existing manufacturing methods of recycled permeable bricks from construction waste, at the present stage, the firing method is mostly used for brick making. The labor cost required for the firing process is also relatively large. In different processes, such as the firing link, a large number of workers are required to carry out brick firing operations, with low efficiency. At the same time, the high energy consumption of the firing process will also bring environmental protection problems, which is not conducive to the national policy of energy conservation and emission reduction.

[0004] Therefore, we propose a building waste recycled brick and its preparation process. The building waste recycled brick of the present invention has a stable structure, is convenient to assemble, has a beautiful shape, is not easy to shake, has high water permeability and is not easy to accumulate water. The preparation process has a high degree of automation, good preparation efficiency and good pressing effect. The recycled brick pressing equipment used in the preparation process can carry out efficient automated production of recycled bricks through accurate material distribution, rapid material pushing and conveying, leveling and pressing, jacking and demolding, clamping and handling, and stable output. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems existing in the prior art, and propose a building waste recycled brick and its preparation process. The technical problem to be solved by this invention is: how to prepare a building waste recycled brick with a stable structure and high water permeability through the technological process of construction waste entering the site, raw material crushing and grading, batching, accurate material distribution, rapid material pushing and conveying, leveling and pressing, jacking and demolding, clamping and handling, stable output, and steam curing.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A building waste recycled brick and its preparation process, including a square brick body. The square brick body from top to bottom is a decorative layer, a hydrophobic layer and a water guiding layer. On both adjacent sides of the upper end of the square brick body, there are lower wedge-shaped assembling plates and wedge-shaped blocking blocks. The two lower wedge-shaped assembling plates are vertically arranged, and two symmetrically arranged lower wedge-shaped grooves are opened on each of the lower wedge-shaped assembling plates. The wedge-shaped blocking block is located in the middle position between the two lower wedge-shaped grooves. At the lower end of the square brick body, there are a number of equally spaced and uniformly distributed water draining protrusions, and a water draining groove is formed between the water draining protrusions and the square brick body. On both adjacent sides of the lower end of the square brick body, there are upper wedge-shaped assembling plates, and upper wedge-shaped grooves and upper blocking grooves are opened on each of the upper wedge-shaped assembling plates. The upper blocking groove is located in the middle position between the two upper wedge-shaped grooves. The two upper wedge-shaped assembling plates are vertically arranged. The position and shape of the upper blocking groove correspond to those of the wedge-shaped blocking block, and the shape and size of the upper wedge-shaped assembling plate correspond to those of the lower wedge-shaped groove.

[0007] The working principle of the present invention is: when installing the building waste recycled brick, the upper wedge-shaped assembling plate is clamped in the lower wedge-shaped groove at the corresponding position, the lower wedge-shaped assembling plate is clamped in the upper wedge-shaped groove at the corresponding position, and the wedge-shaped blocking block is clamped in the upper blocking groove at the corresponding position to form a spliced brick surface. The wedge-shaped blocking block and the upper blocking groove at the corresponding position cooperate to prevent shaking. The water draining protrusions are used for support, and a water draining groove is formed between them for quick drainage.

[0008] The recycled brick body is formed by pressing a decorative layer, a hydrophobic layer and a water guiding layer arranged in sequence from top to bottom. The decorative layer is formed by mixing water, cement, sand and building waste recycled aggregate with a particle size of 0.5±0.1mm and pressing them. The hydrophobic layer is formed by mixing water, cement, sand and building waste recycled aggregate with a particle size of 5±0.5mm and pressing them. The water guiding layer is formed by mixing water, cement, sand and building waste recycled aggregate with a particle size of 10±1.0mm and pressing them.

[0009] A preparation process of a building waste recycled brick, and the preparation process steps are as follows: Step 1, construction waste enters the factory; after being collected, the construction waste is transported into the factory and stored and sorted in the factory yard. Step 2, raw material crushing and grading; the qualified raw materials are crushed and graded to obtain recycled aggregates with different particle sizes, powders with a particle size of 0.5±0.1mm, fine materials with a particle size of 5±0.5mm, and coarse materials with a particle size of 10±1.0mm. Step 3, batching; the obtained recycled aggregates are batched according to different particle sizes to obtain the raw materials for pressing the recycled brick: the raw materials for the decorative layer of the recycled brick are water, cement, sand and powder, the raw materials for the hydrophobic layer of the recycled brick are water, cement, sand and fine materials, and the raw materials for the water guiding layer of the recycled brick are water, cement, sand and coarse materials. Step 4, pressing and molding; the water-conducting layer of the recycled brick with good ingredients is pressed into the pressing mold for pre-pressing, the hydrophobic layer of the recycled brick with good ingredients is pressed into the pressing mold for pre-pressing, and the decorative layer of the recycled brick with good ingredients is pressed into the pressing mold and pressed into bricks; Step 5: Steam curing: Place the pressed recycled bricks into a steam curing kiln and introduce steam to accelerate the hydration reaction of cement and other cementitious materials, so that the recycled bricks harden quickly.

[0010] The decorative layer, the hydrophobic layer and the water-conducting layer are all made of the following raw materials in parts by weight: 4-4.6 parts of cement, 2.6-3.5 parts of water, 4-5 parts of sand and 18-24 parts of recycled aggregate.

[0011] The recycled brick pressing equipment used in the step 4 includes a pressing mechanism, a clamping and transporting mechanism, a pushing mechanism and a conveyor. The clamping and transporting mechanism is located at the inner rear side of the pressing mechanism, the conveyor is located at the front side of the pressing mechanism, the pushing mechanism is located at the rear side of the clamping and transporting mechanism, a lifting mechanism and a plurality of evenly spaced upper mold mechanisms are provided inside the pressing mechanism, the upper mold mechanism is located above the lifting mechanism, a flattening mechanism is provided on the right side of the pressing mechanism, a plurality of evenly spaced feeding mechanisms are provided at the upper end of the rear side of the pressing mechanism, the feeding mechanisms are all fixedly connected to the pressing mechanism, a plurality of evenly spaced dividing mechanisms are provided at the rear side of the upper end of the clamping and transporting mechanism, the dividing mechanisms are located above the feeding mechanisms at corresponding positions, the positions and numbers of the dividing mechanisms correspond to the feeding mechanisms, and the dividing mechanisms are respectively connected to the pushing mechanisms.

[0012] With the above structure, the staff puts the three kinds of pressing raw materials into several material dividing mechanisms respectively, and the several material dividing mechanisms sequentially output the three kinds of pressing raw materials in batches and quantitatively, and transport the three kinds of pressing raw materials into the corresponding position of the feeding mechanism in turn by cooperating with the pushing mechanism, and the feeding mechanism sequentially transports the three kinds of pressing raw materials into the corresponding position of the upper mold mechanism, and transports them to the pressing mechanism through the upper mold mechanism. When transporting the water-conducting layer pressing raw materials and the hydrophobic layer pressing raw materials, the flattening mechanism drives the pressing mechanism to move to make the conveyed pressing raw materials flat, and after flattening, the pressing mechanism drives several upper mold mechanisms to move downward to carry out Pre-pressing avoids excessive mixing of the three kinds of pressing raw materials, which will lead to poor water permeability. When conveying the pressing raw materials of the decorative layer, the flattening mechanism drives the pressing mechanism to move to make the conveyed pressing raw materials flat. After flattening, the pressing mechanism drives several upper mold mechanisms to move downward for pressing, so that the three kinds of pressing raw materials are tightly combined together. After the pressing is completed, the lifting mechanism moves to complete the lifting and demoulding of the pressed recycled bricks, and then the clamping and transporting mechanism holds the pressed recycled bricks, and the lifting mechanism returns to the initial position. Then the clamping and transporting mechanism transports the pressed recycled bricks to the conveyor, and the conveyor transports the pressed recycled bricks out.

[0013] The pressing mechanism includes a pressing frame and a synchronous support. The synchronous support is located at the rear side of the pressing frame. Inside the pressing frame, there are successively arranged a first mounting plate, two symmetrically arranged sliding frames, and a jacking plate from top to bottom. A fixed block is provided on the side of the pressing frame. A first hydraulic push rod is fixed on the upper end surface of the first mounting plate. At the four corners of the lower end of the first mounting plate, there are fixed first sliders. On the pressing frame, there are four vertically arranged first slide rails. The first sliders are all slidably arranged on the first slide rails at corresponding positions. On the synchronous support, there are two vertically arranged third slide rails. On the third slide rails, there are slidably arranged third sliders. Between the third sliders and the first sliders at corresponding positions at the rear side, there are connecting plates. Between the two third sliders, there is a third mounting plate. The sliding frames are all provided with sliding grooves. Inside the sliding grooves, there are slidably arranged pressing frames. The pressing frames are provided with a number of equally spaced and uniformly distributed pressing holes. Inside the pressing holes, there are slidably arranged lower pressing dies. The lower pressing dies match the shape and size of the lower end surface of the construction waste recycled bricks.

[0014] With the above structure, during pressing, the telescopic end of the first hydraulic push rod drives the first mounting plate to move. The four first sliders slide on the first slide rails at corresponding positions. The movement of the first sliders drives the connecting plates to move. The connecting plates drive the third sliders at corresponding positions to move. The two third sliders slide on the third slide rails at corresponding positions and drive the third mounting plate to move simultaneously. During leveling, the pressing frames slide in the sliding grooves of the two sliding frames.

[0015] The jacking mechanism includes a number of second hydraulic push rods. The second hydraulic push rods are all fixed on the jacking plate. At the upper ends of the number of second hydraulic push rods, there is a top plate support frame. On the top plate support frame, there are a number of equally spaced and uniformly distributed jacking bottom plates. The jacking bottom plates are made of magnet material. The positions and sizes of the jacking bottom plates correspond to the pressing holes, and the jacking bottom plates abut against the bottoms of the lower pressing dies at corresponding positions.

[0016] With the above structure, during jacking and demolding, the telescopic ends of the number of second hydraulic push rods drive the top plate support frame to move. The top plate support frame drives the number of jacking bottom plates to move. The number of jacking bottom plates drive the lower pressing dies at corresponding positions and the pressed recycled bricks thereon to move. During demolding, the number of jacking bottom plates adsorb the lower pressing dies and separate the lower pressing dies from the pressed recycled bricks.

[0017] The leveling mechanism includes a leveling support. The leveling support is successively provided with a first driving motor, a hinged frame, and a sliding sleeve from right to left. A U-shaped connecting rod is rotatably arranged on the hinged frame. The rotating shaft of the U-shaped connecting rod is in transmission connection with the output shaft of the first driving motor. The end of the U-shaped connecting rod is hinged with a transmission connecting rod. The sliding sleeve is fixed in the fixed block. Inside the sliding sleeve, there is a slidable leveling push rod. The end of the leveling push rod is provided with a connecting rod. The end of the connecting rod is hinged with the end of the transmission connecting rod.

[0018] With the above structure, the output shaft of the first driving motor drives the U-shaped connecting rod to rotate. The U-shaped connecting rod drives the transmission connecting rod to move. The transmission connecting rod drives the connecting rod and the leveling push rod to move. The leveling push rod slides in the sliding sleeve.

[0019] The clamping and handling mechanism includes a handling frame, a first fixing plate, and a second driving motor. Two symmetrically arranged fourth slide rails are provided on the front side of the upper end of the handling frame. The support plate is located below the first fixing plate. A feeding installation plate is provided on the rear side of the upper end of the handling frame. A support plate is provided on the handling frame. A first electric push rod is fixed on the handling frame. The first electric push rod is located below the feeding installation plate. The first fixing plate is slidably arranged on the support plate. Sliders four are fixed on both sides of the first fixing plate. The sliders four are slidably arranged on the fourth slide rails at corresponding positions. The first fixing plate is fixedly connected to the telescopic end of the first electric push rod. A number of equally spaced and uniformly distributed clamping jaws are provided on the first fixing plate. A transmission shaft is provided between the number of clamping jaws. The second driving motor is fixed on the first fixing plate. The output shaft of the second driving motor is in transmission connection with the transmission shaft. The transmission shaft is respectively in transmission connection with the number of clamping jaws.

[0020] With the above structure, during handling, the telescopic end of the first electric push rod drives the first fixing plate to move. The sliders four slide on the fourth slide rails. The first fixing plate drives the number of clamping jaws to move to the position of pressing the recycled bricks. At this time, the first electric push rod pauses. The output shaft of the second driving motor drives the transmission shaft to move. The transmission shaft drives the number of clamping jaws to move. The number of clamping jaws move to clamp the pressed recycled bricks at corresponding positions. After the pressed recycled bricks leave the lower pressing die, the first electric push rod continues to move to transport the pressed recycled bricks on the number of clamping jaws to the conveyor.

[0021] The material distribution mechanism includes a material distribution support and three second electric push rods. The material distribution supports are all fixed on the feeding installation plate. Three material distribution hoppers are provided on the material distribution support. Material distribution pipes are provided below the material distribution hoppers. The material distribution pipes are communicated with the material distribution hoppers at corresponding positions. The second electric push rods are all fixed between the material distribution pipes and the material distribution support at corresponding positions. Pushing plates one are provided at the telescopic ends of the second electric push rods. The pushing plates one are all located inside the material distribution pipes. A pushing pipe is provided between the side parts of the three material distribution pipes. The pushing pipe is respectively communicated with the material distribution pipes.

[0022] With the above structure, at the initial position, the telescopic ends of the three electric push rods II extend to drive the material pushing plates I at the corresponding positions to move to the ends of the corresponding distributing pipes. At this time, the material pushing plates I block the communication between the corresponding distributing hoppers and the distributing pipes. Then, the staff respectively put the three kinds of pressing raw materials into the corresponding distributing hoppers. Subsequently, the telescopic end of the first electric push rod II drives the material pushing plate I at the corresponding position to move. The first material pushing plate I no longer blocks the communication, and the water guiding layer pressing raw material falls into the distributing pipe. Then, the telescopic end of the first electric push rod II extends to drive the first material pushing plate I to push the falling water guiding layer pressing raw material, push the falling water guiding layer pressing raw material into the pushing pipe and block the communication again. Subsequently, the water guiding layer pressing raw material is pushed out from the pushing pipe. The telescopic end of the second electric push rod II drives the material pushing plate I at the corresponding position to move, repeating the above actions to distribute and output the hydrophobic layer pressing raw material. The telescopic end of the third electric push rod II drives the material pushing plate I at the corresponding position to move, repeating the above actions to distribute and output the decorative layer pressing raw material, completing the quantitative distribution action.

[0023] The material pushing mechanism includes a material pushing support. An electric push rod III is fixed to the rear side of the upper end of the material pushing support. A fixing plate II and two symmetrically arranged slide rails II are provided on the front side of the upper end of the material pushing support. The telescopic end of the electric push rod III is fixedly connected to the fixing plate II. Slide blocks II are provided on both sides of the fixing plate II, and the slide blocks II are slidably arranged on the corresponding slide rails II. A number of equidistantly and uniformly distributed material pushing rods are provided on the fixing plate II, and the positions and shapes of the material pushing rods correspond to those of the pushing pipes.

[0024] With the above structure, the telescopic end of the electric push rod III drives the fixing plate II to move, the slide blocks II slide on the corresponding slide rails II, the fixing plate II drives a number of material pushing rods to move, and the number of material pushing rods push the pressing raw material out.

[0025] The material conveying mechanism includes a mounting plate II and a driving motor III. The mounting plate II is fixed on the mounting plate III, the driving motor III is fixed on the mounting plate II, a conveying pipe is fixed on the mounting plate II, a stirring paddle is rotatably arranged in the conveying pipe, and the rotating shaft of the stirring paddle is in transmission connection with the output shaft of the driving motor III. A feeding hopper is provided at the upper end of the conveying pipe, and the feeding hopper is communicated with the conveying pipe.

[0026] With the above structure, the pressing raw material enters the feeding hopper, then enters the conveying pipe from the feeding hopper. The output shaft of the driving motor III drives the stirring paddle to rotate, and the stirring paddle drives the pressing raw material to move and conveys the pressing raw material out of the conveying pipe.

[0027] The upper die mechanism includes a pressing column. The feeding pipe is fixedly connected to the pressing column. There is a fourth mounting plate on the pressing column, and the fourth mounting plate is fixed below the first mounting plate. The upper end of the pressing column is provided with a mounting hole and a feeding hole. An electric push rod four is fixed in the mounting hole. The size and position of the feeding hole match the telescopic end of the electric push rod four. A feeding port is provided on the side of the pressing column, and the feeding port is communicated with the feeding pipe. Below the pressing column is a pressing upper die, and the pressing upper die matches the shape and size of the upper end of the construction waste recycled brick, and the feeding hole penetrates through the pressing upper die.

[0028] With the above structure, the pressing raw materials conveyed by the feeding pipe enter the feeding hole from the feeding port and fall into the pressing hole from the feeding hole. After the blanking is completed, the telescopic end of the electric push rod four extends and fills the feeding hole. Subsequently, the pressing column and the pressing upper die are driven by the telescopic end of the hydraulic push rod one to perform pressing.

[0029] Compared with the prior art, the construction waste recycled brick and its preparation process have the following advantages: The structure of this construction waste recycled brick is stable, convenient for assembly, beautiful in shape, not easy to shake, has high water permeability, and is not easy to accumulate water.

[0030] This preparation process has a high degree of automation, good preparation efficiency, and good pressing effect.

[0031] The recycled brick pressing equipment adopted in this preparation process can carry out efficient and automated production of recycled bricks through accurate material distribution, rapid material pushing and feeding, flat material pressing, jacking and demoulding, clamping and handling, and stable output.

[0032] Through the cooperation of the material distribution mechanism and the material pushing mechanism, the three pressing raw materials are sequentially distributed and quantitatively output, which is efficient and convenient.

[0033] The feeding mechanism cooperates with the pressing mechanism. The feeding mechanism and the pressing mechanism move synchronously and batchwise convey different pressing raw materials into the pressing mechanism, which is efficient and convenient and is conducive to forming by pressing.

[0034] Through the cooperation of the pressing mechanism and the upper die mechanism, the feeding can be automatically adjusted, and it cooperates with the flat material mechanism to level the material before pressing, making the pressing raw materials more flat, and performing pre-pressing to enhance the pressing effect and ensure the structural strength.

[0035] Through the cooperation of the clamping and handling mechanism and the jacking mechanism, stable demoulding is carried out to clamp and transport out after demoulding, realizing efficient demoulding and output. Description of the Drawings

[0036] Figure 1 It is a schematic perspective view of the upper side of the recycled brick in the present invention.

[0037] Figure 2 It is a schematic perspective view of the lower side of the recycled brick in the present invention.

[0038] Figure 3 It is a schematic diagram of the rear three-dimensional structure of the recycled brick pressing equipment in the present invention.

[0039] Figure 4 It is a schematic diagram of the front three-dimensional structure of the recycled brick pressing equipment in the present invention.

[0040] Figure 5 It is a schematic diagram of the structure of the pressing mechanism in the present invention.

[0041] Figure 6 It is a schematic diagram of the structure of the jacking mechanism in the present invention.

[0042] Figure 7 It is a schematic diagram of the structure of the leveling mechanism in the present invention.

[0043] Figure 8 It is a schematic diagram of the structure of the clamping and handling mechanism in the present invention.

[0044] Figure 9 It is a schematic diagram of the structure of the material distribution mechanism in the present invention.

[0045] Figure 10 It is a schematic diagram of the structure of the pushing mechanism in the present invention.

[0046] Figure 11 It is a schematic diagram of the structure of the material conveying mechanism in the present invention.

[0047] Figure 12 It is a schematic diagram of the structure of the pressing mechanism in the present invention.

[0048] Figure 13 It is a table of the water permeability test results and the compressive strength test results of Examples 1-9 and Comparative Examples 1-2 in the present invention.

[0049] Figure 14 It is a schematic diagram of the preparation process of the present invention.

[0050] In the figure, 1 is a square brick body; 2 is a lower wedge-shaped assembling plate; 3 is a lower wedge-shaped groove; 4 is a wedge-shaped blocking block; 5 is an upper wedge-shaped assembling plate; 6 is an upper wedge-shaped groove; 7 is an upper blocking groove; 8 is a water drainage protrusion; 9 is a conveyor; 10 is a pressing mechanism; 11 is a clamping and handling mechanism; 12 is a feeding mechanism; 13 is a hinge frame; 14 is a pushing mechanism; 15 is a material distributing mechanism; 16 is a clamping and handling mechanism; 17 is a leveling mechanism; 18 is a jacking mechanism; 19 is a pressing frame; 20 is a sliding groove; 21 is a connecting plate; 22 is a synchronous support; 23 is a pressing frame; 24 is a fixing block; 25 is a first slider; 26 is a first slide rail; 27 is a first mounting plate; 28 is a first hydraulic push rod; 29 is a jacking bottom plate; 30 is a top plate support frame; 31 is a second hydraulic push rod; 32 is a sliding sleeve; 33 is a connecting rod; 34 is a U-shaped connecting rod; 35 is a first driving motor; 36 is a leveling support; 37 is a leveling push rod; 38 is a transmission shaft; 39 is a second driving motor; 40 is a first fixing plate; 41 is a first electric push rod; 42 is a handling frame; 43 is a clamping jaw; 44 is a support plate; 45 is a material distributing pipe; 46 is a pushing pipe; 47 is a material distributing hopper; 48 is a material distributing support; 49 is a second electric push rod; 50 is a pushing rod; 51 is a second fixing plate; 52 is a second slide rail; 53 is a third electric push rod; 54 is a pushing support; 55 is a second mounting plate; 56 is a third driving motor; 57 is a feeding pipe; 58 is a feeding hopper; 59 is an upper pressing die; 60 is a mounting hole; 61 is a pressing column; 62 is a feeding port. Detailed implementation mode

[0051] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0052] As Figures 1 - 2 shown, this building waste recycled brick includes a square brick body 1. The square brick body 1 from top to bottom is a decorative layer, a hydrophobic layer and a water guiding layer. On both adjacent sides of the upper end of the square brick body 1, there are provided lower wedge-shaped assembling plates 2 and wedge-shaped blocking blocks 4. The two lower wedge-shaped assembling plates 2 are vertically arranged. On the lower wedge-shaped assembling plates 2, there are provided two symmetrically arranged lower wedge-shaped grooves 3. The wedge-shaped blocking block 4 is located in the middle position between the two lower wedge-shaped grooves 3. At the lower end of the square brick body 1, there are provided a number of equally spaced and uniformly distributed water drainage protrusions 8. A water drainage groove is formed between the water drainage protrusions 8 and the square brick body 1. On both adjacent sides of the lower end of the square brick body 1, there are provided upper wedge-shaped assembling plates 5. On the upper wedge-shaped assembling plates 5, there are provided upper wedge-shaped grooves and upper blocking grooves 7. The upper blocking groove 7 is located in the middle position between the two upper wedge-shaped grooves 3. The two upper wedge-shaped assembling plates 5 are vertically arranged. The position and shape of the upper blocking groove 7 correspond to those of the wedge-shaped blocking block 4. The shape and size of the upper wedge-shaped assembling plate 5 correspond to those of the lower wedge-shaped groove 3.

[0053] When installing the construction waste recycled bricks, the upper wedge-shaped assembling plate 5 is clamped in the lower wedge-shaped groove 3 at the corresponding position, the lower wedge-shaped assembling plate 2 is clamped in the upper wedge-shaped groove at the corresponding position, and the wedge-shaped blocking block 4 is clamped in the upper blocking groove 7 at the corresponding position to form a combined brick surface. The wedge-shaped blocking block 4 and the upper blocking groove 7 at the corresponding position cooperate to prevent shaking. The water drainage protrusions 8 are used for support, and drainage grooves are formed between them for quick drainage.

[0054] The recycled brick body is formed by pressing a decorative layer, a hydrophobic layer, and a water-conducting layer arranged in sequence from top to bottom. The decorative layer is formed by mixing water, cement, sand, and construction waste recycled aggregate with a particle size of 0.5±0.1 mm and pressing them. The hydrophobic layer is formed by mixing water, cement, sand, and construction waste recycled aggregate with a particle size of 5±0.5 mm and pressing them. The water-conducting layer is formed by mixing water, cement, sand, and construction waste recycled aggregate with a particle size of 10±1.0 mm and pressing them. This construction waste recycled brick has a stable structure, is convenient to assemble, has a beautiful shape, is not easy to shake, has high water permeability, and is not easy to accumulate water.

[0055] As Figures 3 - 12 and Figure 14 shown, the preparation process of this construction waste recycled brick is as follows: Step 1, construction waste enters the factory; after being collected, the construction waste is transported into the factory and stored and sorted in the factory yard. Step 2, raw material crushing and grading; the qualified raw materials are crushed and graded to obtain recycled aggregates with different particle sizes, powders with a particle size of 0.5±0.1 mm, fine materials with a particle size of 5±0.5 mm, and coarse materials with a particle size of 10±1.0 mm. Step 3, batching; the obtained recycled aggregates are batched according to different particle sizes to obtain the raw materials for pressing recycled bricks: the raw materials for the decorative layer of the recycled brick are water, cement, sand, and powder; the raw materials for the hydrophobic layer of the recycled brick are water, cement, sand, and fine materials; the raw materials for the water-conducting layer of the recycled brick are water, cement, sand, and coarse materials. Step 4, pressing and forming; the raw materials for pressing the water-conducting layer of the recycled brick after batching enter the pressing mold for pre-pressing, the raw materials for pressing the hydrophobic layer of the recycled brick after batching enter the pressing mold for pre-pressing, and the raw materials for pressing the decorative layer of the recycled brick after batching enter the pressing mold to be pressed into bricks. Step 5, steam curing; the pressed recycled bricks are put into a steam curing kiln, and steam is introduced to accelerate the hydration reaction of cement and other gelling materials, so that the recycled bricks harden quickly.

[0056] The decorative layer, the hydrophobic layer, and the water-conducting layer are all made of raw materials with the following weight parts of each component: 4 - 4.6 parts of cement, 2.6 - 3.5 parts of water, 4 - 5 parts of sand, and 18 - 24 parts of recycled aggregate.

[0057] The recycled brick pressing equipment used in step 4 includes a pressing mechanism 10, a clamping and transporting mechanism 11, a pushing mechanism 14 and a conveyor 9. The clamping and transporting mechanism 11 is located at the inner rear side of the pressing mechanism 10, the conveyor 9 is located at the front side of the pressing mechanism 10, the pushing mechanism 14 is located at the rear side of the clamping and transporting mechanism 11, and the interior of the pressing mechanism 10 is provided with a lifting mechanism 18 and a plurality of evenly spaced upper mold mechanisms, the upper mold mechanism is located above the lifting mechanism 18, a flat material mechanism 17 is provided on the right side of the pressing mechanism 10, and a plurality of evenly spaced feeding mechanisms 12 are provided at the upper end of the rear side of the pressing mechanism 10, and the feeding mechanisms 12 are fixedly connected to the pressing mechanism 10, and a plurality of evenly spaced dividing mechanisms 15 are provided at the rear side of the upper end of the clamping and transporting mechanism 11, and the dividing mechanism 15 is located above the feeding mechanism 12 at the corresponding position, and the position and number of the dividing mechanism 15 correspond to the feeding mechanism 12, and the dividing mechanism 15 is respectively connected to the pushing mechanism 14.

[0058] The staff puts the three kinds of pressing raw materials into a plurality of material dividing mechanisms 15 respectively. The plurality of material dividing mechanisms 15 sequentially output the three kinds of pressing raw materials in batches and quantitatively, and sequentially convey the three kinds of pressing raw materials into the material conveying mechanism 12 at the corresponding position by cooperating with the material pushing mechanism 14. The material conveying mechanism 12 sequentially conveys the three kinds of pressing raw materials into the upper mold mechanism at the corresponding position, and conveys them to the pressing mechanism 10 through the upper mold mechanism. When conveying the pressing raw materials of the water-conducting layer and the hydrophobic layer, the flattening mechanism 17 drives the pressing mechanism 10 to move so that the conveyed pressing raw materials are flattened. After flattening, the pressing mechanism 10 drives the plurality of upper mold mechanisms to move downward for pre-pressing. , to avoid excessive mixing of the three types of pressed raw materials, resulting in poor water permeability. When conveying the pressed raw materials for the decorative layer, the flattening mechanism 17 drives the pressing mechanism 10 to move to make the conveyed pressed raw materials flat. After flattening, the pressing mechanism 10 drives several upper mold mechanisms to move downward for pressing, so that the three pressed raw materials are tightly combined together. After the pressing is completed, the lifting mechanism 18 moves to complete the lifting and demolding of the pressed regenerated bricks, and then the clamping and conveying mechanism 11 holds the pressed regenerated bricks, and the lifting mechanism 18 returns to the initial position, and then the clamping and conveying mechanism 11 conveys the pressed regenerated bricks to the conveyor 9, and the conveyor 9 conveys the pressed regenerated bricks out.

[0059] The pressing mechanism 10 includes a pressing frame 19 and a synchronization support 22. The synchronization support 22 is located at the rear side of the pressing frame 19. Inside the pressing frame 19, there are successively arranged from top to bottom a first mounting plate 27, two symmetrically arranged sliding frames, and a jacking plate. A fixed block 24 is provided on the side of the pressing frame 19. The upper end face of the first mounting plate 27 is fixed with a first hydraulic push rod 28. Four sliders 25 are fixed at the four corners of the lower end of the first mounting plate 27. Four vertically arranged first slide rails 26 are provided on the pressing frame 19. The sliders 25 are all slidably arranged on the first slide rails 26 at corresponding positions. Two vertically arranged third slide rails are provided on the synchronization support 22. Sliders 3 are slidably arranged on the third slide rails. Connecting plates 21 are provided between the sliders 3 and the sliders 25 at corresponding positions at the rear side. An third mounting plate is provided between the two sliders 3. Sliding grooves 20 are formed on the sliding frames. Pressing frames 23 are slidably arranged in the sliding grooves 20. A number of equally spaced and uniformly distributed pressing holes are provided on the pressing frames 23. Pressing lower dies are slidably arranged in the pressing holes. The shapes and sizes of the pressing lower dies match those of the lower end faces of the construction waste recycled bricks.

[0060] During pressing, the telescopic end of the first hydraulic push rod 28 drives the first mounting plate 27 to move. The four sliders 25 slide on the first slide rails 26 at corresponding positions. The movement of the sliders 25 drives the connecting plates 21 to move. The connecting plates 21 drive the sliders 3 at corresponding positions to move. The two sliders 3 slide on the third slide rails at corresponding positions and simultaneously drive the third mounting plate to move. During leveling, the pressing frames 23 slide in the sliding grooves 20 of the two sliding frames.

[0061] The jacking mechanism 18 includes a number of second hydraulic push rods 31. The second hydraulic push rods 31 are all fixed on the jacking plate. A top plate support frame 30 is provided at the upper ends of the number of second hydraulic push rods 31. A number of equally spaced and uniformly distributed jacking bottom plates 29 are provided on the top plate support frame 30. The jacking bottom plates 29 are made of magnetic material. The positions and sizes of the jacking bottom plates 29 correspond to the pressing holes, and the jacking bottom plates 29 abut against the bottoms of the pressing lower dies at corresponding positions.

[0062] During jacking and demoulding, the telescopic ends of the number of second hydraulic push rods 31 drive the top plate support frame 30 to move. The top plate support frame 30 drives the number of jacking bottom plates 29 to move. The number of jacking bottom plates 29 drive the pressing lower dies and the pressed recycled bricks thereon to move. During demoulding, the number of jacking bottom plates 29 adsorb the pressing lower dies and separate the pressing lower dies from the pressed recycled bricks.

[0063] The flattening mechanism 17 includes a flattening support 36. From right to left, the flattening support 36 is successively provided with a first driving motor 35, a hinged frame 13, and a sliding sleeve 32. A U-shaped connecting rod is rotatably provided on the hinged frame 13. The rotating shaft of the U-shaped connecting rod is in transmission connection with the output shaft of the first driving motor 35. The end of the U-shaped connecting rod is hinged with a transmission connecting rod. The sliding sleeve 32 is fixed in the fixed block 24. A flattening push rod 37 is slidably provided in the sliding sleeve 32. One end of the flattening push rod 37 is provided with a connecting rod 33. The end of the connecting rod 33 is hinged with the end of the transmission connecting rod.

[0064] The output shaft of the first driving motor 35 drives the U-shaped connecting rod to rotate. The U-shaped connecting rod drives the transmission connecting rod to move. The transmission connecting rod drives the connecting rod 33 and the flattening push rod 37 to move. The flattening push rod 37 slides in the sliding sleeve 32.

[0065] The clamping and handling mechanism 11 includes a handling frame 42, a first fixing plate 40, and a second driving motor 39. On the front side of the upper end of the handling frame 42, there are two symmetrically arranged fourth slide rails. The support plate 44 is located below the first fixing plate 40. On the rear side of the upper end of the handling frame 42, there is a feeding installation plate. The handling frame 42 is provided with a support plate 44. An electric push rod 41 is fixed on the handling frame 42. The electric push rod 41 is located below the feeding installation plate. The first fixing plate 40 is slidably arranged on the support plate 44. On both sides of the first fixing plate 40, there are fixed fourth sliders. The fourth sliders are slidably arranged on the corresponding fourth slide rails. The first fixing plate 40 is fixedly connected to the telescopic end of the electric push rod 41. The first fixing plate 40 is provided with a number of equally spaced and uniformly distributed clamping jaws 43. Between the number of clamping jaws 43, there is a transmission shaft 38. The second driving motor 39 is fixed on the first fixing plate 40. The output shaft of the second driving motor 39 is in transmission connection with the transmission shaft 38. The transmission shaft 38 is respectively in transmission connection with the number of clamping jaws 43.

[0066] During handling, the telescopic end of the electric push rod 41 drives the first fixing plate 40 to move. The fourth sliders slide on the fourth slide rails. The first fixing plate 40 drives the number of clamping jaws 43 to move to the position of the pressed recycled bricks. At this time, the electric push rod 41 pauses. The output shaft of the second driving motor 39 drives the transmission shaft 38 to move. The transmission shaft 38 drives the number of clamping jaws 43 to move. The number of clamping jaws 43 move to clamp the corresponding pressed recycled bricks. After the pressed recycled bricks leave the lower pressing die, the electric push rod 41 continues to move to carry the pressed recycled bricks on the number of clamping jaws 43 to the conveyor 9.

[0067] The material distribution mechanism 15 includes a material distribution support 48 and three second electric push rods 49. The material distribution support 48 is fixed on the material conveying mounting plate. There are three material distribution hoppers 47 on the material distribution support 48. Below each material distribution hopper 47, there is a material distribution pipe 45. The material distribution pipe 45 is communicated with the corresponding material distribution hopper 47. The second electric push rods 49 are fixed between the corresponding material distribution pipes 45 and the material distribution support 48. A first push plate is provided at the telescopic end of each second electric push rod 49. The first push plates are all located in the material distribution pipes 45. A material pushing pipe 46 is provided between the sides of the three material distribution pipes 45. The material pushing pipe 46 is respectively communicated with the material distribution pipes 45.

[0068] In the initial position, the telescopic ends of the three second electric push rods 49 extend to drive the first push plates at the corresponding positions to move to the ends of the corresponding material distribution pipes 45. At this time, the first push plates block the communication between the corresponding material distribution hoppers 47 and the material distribution pipes 45. Then, the staff respectively put three kinds of pressing raw materials into the corresponding material distribution hoppers 47. Subsequently, the telescopic end of the first second electric push rod 49 drives the first push plate at the corresponding position to move. The first push plate no longer blocks the communication, and the water guiding layer pressing raw material falls into the material distribution pipe 45. Then, the telescopic end of the first second electric push rod 49 extends to drive the first push plate to push the falling water guiding layer pressing raw material, push the falling water guiding layer pressing raw material into the material pushing pipe 46 and block the communication again. Subsequently, the water guiding layer pressing raw material is pushed out from the material pushing pipe 46. The telescopic end of the second second electric push rod 49 drives the first push plate at the corresponding position to move, repeating the above actions to distribute and output the hydrophobic layer pressing raw material. The telescopic end of the third second electric push rod 49 drives the first push plate at the corresponding position to move, repeating the above actions to distribute and output the decorative layer pressing raw material, completing the quantitative material distribution action.

[0069] The material pushing mechanism 14 includes a material pushing support 54. A third electric push rod 53 is fixed at the rear side of the upper end of the material pushing support 54. A second fixing plate 51 and two symmetrically arranged second slide rails 52 are provided at the front side of the upper end of the material pushing support 54. The telescopic end of the third electric push rod 53 is fixedly connected to the second fixing plate 51. Sliders two are provided on both sides of the second fixing plate 51. The sliders two are slidably arranged on the corresponding second slide rails 52. A number of evenly spaced material pushing rods 50 are provided on the second fixing plate 51. The positions and shapes of the material pushing rods 50 correspond to those of the material pushing pipe 46.

[0070] The telescopic end of the third electric push rod 53 drives the second fixing plate 51 to move. The sliders two slide on the corresponding second slide rails 52. The second fixing plate 51 drives a number of material pushing rods 50 to move, and a number of material pushing rods 50 push the pressing raw material out.

[0071] The material feeding mechanism 12 includes a second mounting plate 55 and a third driving motor 56. The second mounting plate 55 is fixed on the third mounting plate, and the third driving motor 56 is fixed on the second mounting plate 55. A material feeding pipe 57 is fixed on the second mounting plate 55. A stirring paddle is rotatably arranged in the material feeding pipe 57, and the rotating shaft of the stirring paddle is in transmission connection with the output shaft of the third driving motor 56. A material feeding hopper 58 is arranged at the upper end of the material feeding pipe 57, and the material feeding hopper 58 is communicated with the material feeding pipe 57.

[0072] The pressed raw materials enter the material feeding hopper 58, and then enter the material feeding pipe 57 from the material feeding hopper 58. The output shaft of the third driving motor 56 drives the stirring paddle to rotate, and the stirring paddle drives the pressed raw materials to move and convey the pressed raw materials out of the material feeding pipe 57.

[0073] The upper die mechanism includes a pressing column 61. The material feeding pipe 57 is fixedly connected with the pressing column 61. There is a fourth mounting plate on the pressing column 61, and the fourth mounting plate is fixed below the first mounting plate 27. An installation hole 60 and a material injection hole are opened at the upper end of the pressing column 61. An electric push rod four is fixed in the installation hole 60. The size and position of the material injection hole match the telescopic end of the electric push rod four. A material feeding port 62 is opened on the side of the pressing column 61, and the material feeding port 62 is communicated with the material feeding pipe 57. A pressing upper die 59 is arranged below the pressing column 61. The pressing upper die 59 matches the shape and size of the upper end of the construction waste recycled brick, and the material injection hole penetrates through the pressing upper die 59.

[0074] The pressed raw materials conveyed by the material feeding pipe 57 enter the material injection hole from the material feeding port 62 and fall into the pressing hole from the material injection hole. After the blanking is completed, the telescopic end of the electric push rod four extends out and fills the material injection hole. Then, the pressing column 61 and the pressing upper die 59 are driven by the telescopic end of the first hydraulic push rod 28 to perform pressing.

[0075] Example 1 A kind of construction waste recycled brick, the decorative layer pressed raw materials, the hydrophobic layer pressed raw materials and the water guiding layer pressed raw materials are all made of raw materials with the following weight parts: 4.3 parts of cement, 3 parts of water, 4.6 parts of sand and 20.3 parts of recycled aggregate; Step 1, the construction waste enters the factory; after being collected, the construction waste is transported into the factory and stored and sorted in the factory yard; Step 2, raw material crushing and grading; the qualified raw materials are crushed and graded to obtain recycled aggregates with different particle sizes, powders with a particle size of 0.5±0.1mm, fine materials with a particle size of 5±0.5mm, and coarse materials with a particle size of 10±1.0mm; Step 3, batching; the obtained recycled aggregates are batched according to different particle sizes to obtain the recycled brick pressed raw materials: the decorative layer raw materials of the recycled brick are water, cement, sand and powder, the hydrophobic layer raw materials of the recycled brick are water, cement, sand and fine materials, and the water guiding layer raw materials of the recycled brick are water, cement, sand and coarse materials; Step 4, press forming; in the initial position, the telescopic ends of the three electric push rods II 49 extend to drive the material pushing plates I at the corresponding positions to move to the ends of the corresponding material distribution pipes 45. At this time, the material pushing plates I block the communication between the corresponding material distribution hoppers 47 and the material distribution pipes 45. The staff puts the three kinds of pressing raw materials into several material distribution hoppers 47 respectively. Several material distribution mechanisms 15 output the three kinds of pressing raw materials in batches and quantitatively in sequence, and cooperate with the material pushing mechanism 14 to convey the three kinds of pressing raw materials into the corresponding material conveying mechanisms 12 in sequence. That is, the telescopic end of the first electric push rod II 49 drives the material pushing plate I at the corresponding position to move. The first material pushing plate I no longer blocks the communication, and the water guiding layer pressing raw material falls into the material distribution pipe 45. Subsequently, the telescopic end of the first electric push rod II 49 extends to drive the first material pushing plate I to push the falling water guiding layer pressing raw material, push the falling water guiding layer pressing raw material into the material pushing pipe 46 and block the communication again. Subsequently, the water guiding layer pressing raw material is pushed out of the material pushing pipe 46. The telescopic end of the second electric push rod II 49 drives the material pushing plate I at the corresponding position to move, and repeats the above actions to output the hydrophobic layer pressing raw material by material distribution. The telescopic end of the third electric push rod II 49 drives the material pushing plate I at the corresponding position to move, and repeats the above actions to output the decorative layer pressing raw material by material distribution, completing the quantitative material distribution action. The material conveying mechanism 12 conveys the three kinds of pressing raw materials into the corresponding upper die mechanisms in sequence, and transports them to the pressing mechanism 10 through the upper die mechanism. That is, the pressing raw material enters the material conveying hopper 58, and then enters the material conveying pipe 57 from the material conveying hopper 58. The output shaft of the driving motor III 56 drives the stirring paddle to rotate. The stirring paddle drives the pressing raw material to move and conveys the pressing raw material out of the material conveying pipe 57. The pressing raw material conveyed out of the material conveying pipe 57 enters the injection hole from the material conveying port 62 and falls into the pressing hole from the injection hole. After the blanking is completed, the telescopic end of the electric push rod IV extends and fills the injection hole. When conveying the water guiding layer pressing raw material and the hydrophobic layer pressing raw material, the leveling mechanism 17 drives the pressing mechanism 10 to move to level the conveyed pressing raw material. That is, the output shaft of the driving motor I 35 drives the U-shaped connecting rod to rotate. The U-shaped connecting rod drives the transmission connecting rod to move. The transmission connecting rod drives the connecting rod 33 and the leveling push rod 37 to move. The leveling push rod 37 slides in the sliding sleeve 32. The leveling push rod 37 pushes the pressing frame 23 to slide to level the pressing raw material in the pressing hole. After leveling, the pressing mechanism 10 drives several upper die mechanisms to move downward for pre-pressing. That is, the telescopic end of the hydraulic push rod I 28 drives the mounting plate I 27 to move. The mounting plate I 27 drives the pressing column 61 to move downward. The pressing column 61 drives the pressing upper die 59 to move for pre-pressing to avoid excessive mixing of the three kinds of pressing raw materials, resulting in poor water permeability. When conveying the decorative layer pressing raw material, the leveling mechanism 17 drives the pressing mechanism 10 to move to level the conveyed decorative layer pressing raw material. After leveling, the pressing mechanism 10 drives several upper die mechanisms to move downward for pressing to tightly combine the three kinds of pressing raw materials together. After pressing is completed, the jacking mechanism 18 moves to jack up and demold the pressed recycled brick.That is, the telescopic ends of several hydraulic push rods II 31 drive the top plate support frame 30 to move. The top plate support frame 30 drives several jacking bottom plates 29 to move. The several jacking bottom plates 29 drive the pressing lower die at the corresponding position and the pressed recycled bricks thereon to move. Subsequently, the clamping and handling mechanism 11 clamps the pressed recycled bricks. That is, the telescopic end of the electric push rod I 41 drives the fixing plate I 40 to move. The slider IV slides on the slide rail IV. The fixing plate I 40 drives several clamping jaws 43 to move to the position of the pressed recycled bricks. At this time, the electric push rod I 41 pauses to move. The output shaft of the driving motor II 39 drives the transmission shaft 38 to move. The transmission shaft 38 drives several clamping jaws 43 to move. The several clamping jaws 43 move to clamp the pressed recycled bricks at the corresponding positions. The jacking mechanism 18 returns to the initial position. That is, several jacking bottom plates 29 adsorb the pressing lower die, so that the pressing lower die is separated from the pressed recycled bricks and returns to the initial position. Subsequently, the clamping and handling mechanism 11 transports the pressed recycled bricks to the conveyor 9. The conveyor 9 transports the pressed recycled bricks out; Step Five, steam curing; put the pressed recycled bricks into a steam curing kiln, and introduce steam to accelerate the hydration reaction of cementitious materials such as cement, so that the recycled bricks are quickly hardened.

[0076] Example 2 A building waste recycled brick, the decorative layer pressing raw material, the hydrophobic layer pressing raw material, and the water guiding layer pressing raw material are all made of raw materials with the following weight parts of each component: 4.0 parts of cement, 3 parts of water, 4.6 parts of sand, and 20.3 parts of recycled aggregate; Other categories and steps are the same as those in Example 1.

[0077] Example 3 A building waste recycled brick, the decorative layer pressing raw material, the hydrophobic layer pressing raw material, and the water guiding layer pressing raw material are all made of raw materials with the following weight parts of each component: 4.6 parts of cement, 3 parts of water, 4.6 parts of sand, and 20.3 parts of recycled aggregate; Other categories and steps are the same as those in Example 1.

[0078] Example 4 A building waste recycled brick, the decorative layer pressing raw material, the hydrophobic layer pressing raw material, and the water guiding layer pressing raw material are all made of raw materials with the following weight parts of each component: 4.3 parts of cement, 2.6 parts of water, 4.6 parts of sand, and 20.3 parts of recycled aggregate; Other categories and steps are the same as those in Example 1.

[0079] Example 5 A building waste recycled brick, the decorative layer pressing raw material, the hydrophobic layer pressing raw material, and the water guiding layer pressing raw material are all made of raw materials with the following weight parts of each component: 4.3 parts of cement, 3.4 parts of water, 4.6 parts of sand, and 20.3 parts of recycled aggregate; Other categories and steps are the same as those in Example 1.

[0080] Example 6 A kind of building waste recycled brick, the pressing raw materials of the decorative layer, the hydrophobic layer and the water-conducting layer are all made of raw materials with the following parts by weight: 4.3 parts of cement, 3 parts of water, 4.3 parts of sand and 20.3 parts of recycled aggregate; All other categories and steps are the same as those in Example 1.

[0081] Example 7 A kind of building waste recycled brick, the pressing raw materials of the decorative layer, the hydrophobic layer and the water-conducting layer are all made of raw materials with the following parts by weight: 4.3 parts of cement, 3 parts of water, 4.9 parts of sand and 20.3 parts of recycled aggregate; All other categories and steps are the same as those in Example 1.

[0082] Example 8 A kind of building waste recycled brick, the pressing raw materials of the decorative layer, the hydrophobic layer and the water-conducting layer are all made of raw materials with the following parts by weight: 4.3 parts of cement, 3 parts of water, 4.6 parts of sand and 18.3 parts of recycled aggregate; All other categories and steps are the same as those in Example 1.

[0083] Example 9 A kind of building waste recycled brick, the pressing raw materials of the decorative layer, the hydrophobic layer and the water-conducting layer are all made of raw materials with the following parts by weight: 4.3 parts of cement, 3 parts of water, 4.6 parts of sand and 22.3 parts of recycled aggregate.

[0084] Comparative Example 1 Ordinary red brick: An ordinary red brick made by firing clay blanks and having the same shape and size as the recycled brick.

[0085] Comparative Example 2 Ordinary concrete brick: The recycled aggregate is replaced with ordinary concrete stone; All other categories are the same as those in Example 1.

[0086] Performance test To better illustrate the present invention, the building waste recycled bricks obtained in each example are subjected to performance tests below. The water permeability test and the compressive strength test of the products are carried out by using the standard test methods in the industry, and at the same time, comparisons are made in combination with the comparative examples.

[0087] The specific test method for the water permeability test is as follows: Randomly select a sufficient number of permeable brick specimens; Place the selected permeable brick specimens in the permeable water tank, fill the gaps between the permeable brick specimens and the four walls of the permeable water tank to make it airtight, and then pour a certain amount of water from the upper side of the permeable brick specimens to test the drainage time of the permeable brick specimens.

[0088] The specific test method for compressive strength is as follows: Randomly select a sufficient number of permeable brick specimens; Place the prepared permeable brick specimens stably under the pressure testing machine, slowly apply pressure, and record the pressure value when the permeable brick specimens are damaged.

[0089] The test results of water permeability and compressive strength of the examples and comparative examples are as Figure 13 shown.

[0090] It can be seen from the comparison of the test results of water permeability and compressive strength of the above comparative examples and examples that the building waste recycled bricks made of the ratio used in Example 1 have high water permeability efficiency and better compressive strength; It can be seen from the comparison of the test results of water permeability and compressive strength between Example 1 and Comparative Example 1 and Comparative Example 2 that the building waste recycled bricks used in Example 1 have high water permeability efficiency, better compressive strength, and more stable structural strength.

[0091] The recycled brick pressing equipment used in this preparation process can carry out efficient automated production of recycled bricks through accurate material distribution, rapid material pushing and feeding, leveling and pressing, lifting and demolding, clamping and handling, and stable output.

[0092] Through the cooperation of the material distribution mechanism 15 and the material pushing mechanism 14, the three pressing raw materials are sequentially distributed and quantitatively output, which is efficient and convenient; The feeding mechanism 12 cooperates with the pressing mechanism 10. The feeding mechanism 12 and the pressing mechanism 10 move synchronously to batch transport different pressing raw materials into the pressing mechanism 10, which is efficient and convenient and is conducive to pressing into shape; Through the cooperation of the pressing mechanism 10 and the upper die mechanism, the feeding can be automatically adjusted, and it cooperates with the leveling mechanism 17 to level the material before pressing, making the pressing raw materials more flat, and performing pre-pressing to enhance the pressing effect and ensure the structural strength; Through the cooperation of the clamping and handling mechanism 11 and the lifting mechanism 18, stable demolding is carried out to clamp, handle and transport out after demolding, realizing efficient demolding and output.

[0093] This preparation process has a high degree of automation, high preparation efficiency, and good pressing effect.

[0094] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A construction solid waste recycled brick, comprising a square brick body (1), characterized in that: The square brick body (1) comprises a decorative layer, a hydrophobic layer and a water-conducting layer from top to bottom. The two adjacent sides of the upper end of the square brick body (1) are provided with a lower wedge-shaped assembly plate (2) and a wedge-shaped blocking block (4). The two lower wedge-shaped assembly plates (2) are vertically arranged. The lower wedge-shaped assembly plates (2) are provided with two symmetrically arranged lower wedge-shaped grooves (3). The wedge-shaped blocking block (4) is located in the middle of the two lower wedge-shaped grooves (3). The lower end of the square brick body (1) is provided with a plurality of equally spaced drainage protrusions (8). (8) and the square brick body (1) form a drain groove, and upper wedge-shaped assembly plates (5) are provided on both sides adjacent to the lower end of the square brick body (1), and upper wedge-shaped assembly plates (5) are provided with upper wedge-shaped grooves and upper blocking grooves (7), and the upper blocking grooves (7) are located in the middle of the two upper wedge-shaped grooves. The two upper wedge-shaped assembly plates (5) are vertically arranged, and the position and shape of the upper blocking grooves (7) correspond to the wedge-shaped blocking blocks (4), and the shape and size of the upper wedge-shaped assembly plates (5) correspond to the lower wedge-shaped grooves (3).

2. The construction solid waste recycled brick according to claim 1, characterized in that: The recycled brick body is formed by pressing a decorative layer, a hydrophobic layer and a water-conducting layer arranged in sequence from top to bottom, and the decorative layer is formed by mixing and pressing water, cement, sand and recycled aggregates from construction solid waste with a particle size of 0.5±0.1mm; The hydrophobic layer is formed by mixing and pressing water, cement, sand and recycled aggregates from construction solid waste with a particle size of 5±0.5mm; The water-conducting layer is formed by mixing and pressing water, cement, sand and recycled aggregate from construction solid waste with a particle size of 10±1.0mm.

3. A process for preparing recycled bricks from construction solid waste as claimed in claim 1 or 2, characterized in that: The preparation process steps are as follows: Step 1: Construction waste enters the site; after being collected, the construction waste is transported into the factory and stored and sorted in the factory yard; Step 2: crushing and grading the raw materials; crushing and grading the qualified raw materials to obtain recycled aggregates of different particle sizes, including powder with a particle size of 0.5±0.1mm, fine material with a particle size of 5±0.5mm, and coarse material with a particle size of 10±1.0mm; Step three, batching: the obtained recycled aggregate is batched according to different particle sizes to obtain recycled brick pressing raw materials: the raw materials for the decorative layer of the recycled brick are water, cement, sand and powder, the raw materials for the hydrophobic layer of the recycled brick are water, cement, sand and fine materials, and the raw materials for the water-conducting layer of the recycled brick are water, cement, sand and coarse materials; Step 4, pressing and molding; the water-conducting layer of the recycled brick with good ingredients is pressed into the pressing mold for pre-pressing, the hydrophobic layer of the recycled brick with good ingredients is pressed into the pressing mold for pre-pressing, and the decorative layer of the recycled brick with good ingredients is pressed into the pressing mold and pressed into bricks; Step 5: Steam curing: Place the pressed recycled bricks into a steam curing kiln and introduce steam to accelerate the hydration reaction of cement and other cementitious materials, so that the recycled bricks harden quickly.

4. The process for preparing recycled bricks from construction solid waste according to claim 3, characterized in that: The decorative layer, the hydrophobic layer and the water-conducting layer are all made of the following raw materials in parts by weight: 4-4.6 parts of cement, 2.6-3.5 parts of water, 4-5 parts of sand and 18-24 parts of recycled aggregate.

5. The process for preparing recycled bricks from construction solid waste according to claim 4, characterized in that: The regenerated brick pressing device used in step 4 comprises a pressing mechanism (10), a clamping and transporting mechanism (11), a pushing mechanism (14) and a conveyor (9), wherein the clamping and transporting mechanism (11) is located at the rear side of the pressing mechanism (10), the conveyor (9) is located at the front side of the pressing mechanism (10), the pushing mechanism (14) is located at the rear side of the clamping and transporting mechanism (11), and the pressing mechanism (10) is provided with a lifting mechanism (18) and a plurality of upper mold mechanisms equidistantly distributed inside the pressing mechanism (10), the upper mold mechanism is located above the lifting mechanism (18), and the pressing mechanism A material leveling mechanism (17) is provided on the right side of the pressing mechanism (10); a plurality of evenly spaced feeding mechanisms (12) are provided on the upper rear end of the pressing mechanism (10); the feeding mechanisms (12) are fixedly connected to the pressing mechanism (10); a plurality of evenly spaced dividing mechanisms (15) are provided on the rear side of the upper end of the clamping and transporting mechanism (11); the dividing mechanisms (15) are located above the feeding mechanisms (12) at corresponding positions; the positions and numbers of the dividing mechanisms (15) correspond to those of the feeding mechanisms (12); and the dividing mechanisms (15) are respectively connected to the pushing mechanisms (14).

6. The process for preparing recycled bricks from construction solid waste according to claim 5, characterized in that: The pressing mechanism (10) comprises a pressing frame (19) and a synchronous bracket (22), wherein the synchronous bracket (22) is located at the rear side of the pressing frame (19), and the pressing frame (19) is provided with a mounting plate (27), two symmetrically arranged sliding frames and a lifting plate in order from top to bottom, and a fixing block (24) is provided on the side of the pressing frame (19), a hydraulic push rod (28) is fixed to the upper end surface of the mounting plate (27), and sliding blocks (25) are fixed to the four corners of the lower end of the mounting plate (27), and the pressing frame (19) is provided with four vertically arranged sliding rails (26), and the sliding block (25) is provided with a plurality of vertically arranged sliding rails (26). The sliding bracket (22) is provided with two vertically arranged sliding rails, and the sliding rails are provided with three slide blocks, and the sliding rails are provided with three slide blocks, and the connecting plates (21) are provided between the slide blocks and the corresponding slide blocks (25) at the rear side, and the mounting plates are provided between the two slide blocks. The sliding brackets are provided with sliding grooves (20), and the sliding grooves (20) are provided with pressing frames (23) for sliding movement, and the pressing frames (23) are provided with a plurality of equally spaced pressing holes, and the pressing holes are provided with pressing lower dies for sliding movement, and the pressing lower dies match the shape and size of the lower end surface of the building solid waste recycled brick.

7. The process for preparing recycled bricks from construction solid waste according to claim 6, characterized in that: The lifting mechanism (18) comprises a plurality of hydraulic push rods (31), each of which is fixed on a lifting plate. A lifting plate support frame (30) is provided at the upper end of each of the hydraulic push rods (31), and a plurality of lifting bottom plates (29) are provided on the lifting plate support frame (30) at equal intervals. The lifting bottom plates (29) are made of a magnetic material. The position and size of the lifting bottom plates (29) correspond to the pressing holes, and the lifting bottom plates (29) abut against the bottom of the pressing lower die at the corresponding position. The flat material mechanism (17) comprises a flat material support (36), the flat material support (36) being provided with a driving motor (35), an articulated frame (13) and a sliding sleeve (32) in sequence from right to left, a U-shaped connecting rod being rotatably provided on the articulated frame (13), a rotating shaft of the U-shaped connecting rod being drivingly connected to an output shaft of the driving motor (35), a driving connecting rod being hingedly connected to the end of the U-shaped connecting rod, the sliding sleeve (32) being fixed in a fixed block (24), a flat material push rod (37) being slidably provided in the sliding sleeve (32), a connecting rod (33) being provided at the end of the flat material push rod (37), and the end of the connecting rod (33) being hingedly connected to the end of the driving connecting rod.

8. The process for preparing recycled bricks from construction solid waste according to claim 7, characterized in that: The clamping and transporting mechanism (11) comprises a transporting frame (42), a fixing plate (40) and a driving motor (39). Two symmetrically arranged slide rails (4) are arranged on the front side of the upper end of the transporting frame (42). A support plate (44) is located below the fixing plate (40). A material conveying mounting plate is arranged on the rear side of the upper end of the transporting frame (42). The transporting frame (42) is provided with a support plate (44). An electric push rod (41) is fixed on the transporting frame (42). The electric push rod (41) is located below the fixing plate (40). The fixing plate (40) is slidably arranged on the support plate (44). 44), sliders 4 are fixed on both sides of the fixing plate 1 (40), the sliders 4 are slidably arranged on the slide rails 4 at corresponding positions, the fixing plate 1 (40) is fixedly connected to the telescopic end of the electric push rod 1 (41), a plurality of equidistant and evenly distributed clamping claws (43) are arranged on the fixing plate 1 (40), a transmission shaft (38) is arranged between the plurality of clamping claws (43), a driving motor 2 (39) is fixed on the fixing plate 1 (40), an output shaft of the driving motor 2 (39) is transmission-connected to the transmission shaft (38), and the transmission shaft (38) is transmission-connected to the plurality of clamping claws (43) respectively; The material distribution mechanism (15) comprises a material distribution bracket (48) and three electric push rods (49). The material distribution bracket (48) is fixed on a material feeding mounting plate. Three material distribution hoppers (47) are arranged on the material distribution bracket (48). Material distribution pipes (45) are arranged below the material distribution hoppers (47). The material distribution pipes (45) are connected to the material distribution hoppers (47) at corresponding positions. The electric push rods (49) are fixed between the material distribution pipes (45) and the material distribution bracket (48) at corresponding positions. Push plates (1) are arranged at the telescopic ends of the electric push rods (49). The push plates (1) are located in the material distribution pipes (45). Push pipes (46) are arranged between the sides of the three material distribution pipes (45). The push pipes (46) are respectively connected to the material distribution pipes (45).

9. The process for preparing recycled bricks from construction solid waste according to claim 8, characterized in that: The pushing mechanism (14) comprises a pushing bracket (54), an electric push rod 3 (53) is fixed on the rear side of the upper end of the pushing bracket (54), a fixed plate 2 (51) and two symmetrically arranged slide rails 2 (52) are arranged on the front side of the upper end of the pushing bracket (54), the telescopic end of the electric push rod 3 (53) is fixedly connected to the fixed plate 2 (51), both sides of the fixed plate 2 (51) are provided with slide blocks 2, the slide blocks 2 are slidably arranged on the slide rails 2 (52) at corresponding positions, and a plurality of equidistant and evenly distributed pushing rods (50) are arranged on the fixed plate 2 (51), and the positions and shapes of the pushing rods (50) correspond to the pushing tube (46); The feeding mechanism (12) comprises a second mounting plate (55) and a third driving motor (56), wherein the second mounting plate (55) is fixed on the third mounting plate, the third driving motor (56) is fixed on the second mounting plate (55), a feeding pipe (57) is fixed on the second mounting plate (55), a stirring paddle is rotatably arranged in the feeding pipe (57), the rotating shaft of the stirring paddle is drivingly connected to the output shaft of the third driving motor (56), a feeding hopper (58) is arranged at the upper end of the feeding pipe (57), and the feeding hopper (58) is connected to the feeding pipe (57).

10. The process for preparing recycled bricks from construction solid waste according to claim 9, characterized in that: The upper mold mechanism comprises a pressing column (61), a material delivery pipe (57) being fixedly connected to the pressing column (61), a mounting plate four being provided on the pressing column (61), the mounting plate four being fixed below the mounting plate one (27), a mounting hole (60) and a material injection hole being provided at the upper end of the pressing column (61), an electric push rod four being fixed in the mounting hole (60), the size and position of the material injection hole matching the telescopic end of the electric push rod four, a material delivery port (62) being provided at the side of the pressing column (61), the material delivery port (62) being connected to the material delivery pipe (57), a pressing upper mold (59) being provided below the pressing column (61), the pressing upper mold (59) matching the shape and size of the upper end of the building solid waste recycled brick, and the material injection hole passing through the pressing upper mold (59).

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