Concrete shunting device and waste slurry modification treatment method thereof

Abstract

The invention discloses a concrete flow dividing device and a waste slurry modification treatment method thereof, and belongs to the field of green production of concrete.The concrete flow dividing device comprises a flow dividing tower, a fluidization mechanism, a first screen and a waste slurry circulating pump, a water storage tank is arranged at the bottom of the flow dividing tower, and a stirrer is arranged in the water storage tank; the fluidization mechanism comprises a fluidization tank, a blocking piece and a fluidization driving assembly, the fluidization tank comprises an inner container, the fluidization driving assembly is used for driving the inner container to rotate, the inner container is provided with first screen holes and a discharging pipe, the blocking piece covers the discharging pipe, the first screen is located below the fluidization tank, and second screen holes are formed in the first screen; and the waste slurry circulating pump pumps waste slurry water in the reservoir into the fluidization tank through a pipeline. According to the invention, accurate separation and reutilization of concrete slurry and aggregate can be realized, the problem of environmental pollution caused by building materials can be effectively avoided, reutilization of recyclable aggregate can be enhanced, raw materials are saved, and good ecological and economic benefits are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of green concrete production, and in particular to a concrete diversion device and a waste slurry modification treatment method thereof. Background Art

[0002] As the largest building material, the remaining and scrapped concrete at the construction site, as well as the large amount of waste slurry water generated in the process of producing commercial concrete in the ready-mixed plant, all need to be harmlessly treated to protect the ecological environment. The remaining and scrapped concrete at the construction site is mainly caused by the planned volume exceeding the actual volume, the irresistible changes in the workability of the concrete and the inability to meet the construction requirements. This part of the concrete needs to be transported back to the concrete ready-mixed plant for unified and harmless treatment. The remaining and scrapped concrete at the construction site is mainly concrete, and the fluidity of the concrete to be treated has deteriorated and is close to the initial setting state, so fluidization treatment is required. The sources of waste slurry water generated in the production of commercial concrete include cleaning of mixing transport tankers, mixers and other carrier equipment and washing sites. The main components of the waste concrete slurry generated in the production of commercial concrete include clay, a small amount of sand and gravel, and cement paste.

[0003] Some concrete waste slurry treatment equipment in the prior art generally directly uses a screen to filter, and the cement slurry in the waste slurry water adheres to the aggregate and is not easy to fall off, which is not conducive to the secondary utilization of the cement slurry in the waste slurry. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a concrete diversion device and a waste slurry modification treatment method thereof, which solves the problem that some concrete waste slurry treatment equipment in the prior art generally directly uses a screen to filter, and the cement slurry in the waste slurry water adheres to the aggregate and is not easy to fall off, which is not conducive to the secondary utilization of the cement slurry in the waste slurry.

[0005] A concrete diverter according to an embodiment of the present invention comprises:

[0006] A diverter tower, wherein a water reservoir for receiving waste slurry water is provided at the bottom of the diverter tower, and an agitator is provided in the water reservoir;

[0007] A fluidizing mechanism, comprising a fluidizing tank, a plugging member and a fluidizing drive assembly, wherein the fluidizing tank is used for fluidizing waste concrete slurry, the fluidizing tank is installed above the diverter tower, the fluidizing tank comprises an inner liner and an outer shell, the inner liner is rotatably connected in the outer shell, the inner liner is in transmission connection with the fluidizing drive assembly, the fluidizing drive assembly is used to drive the inner liner to rotate, a fluidizing cavity is arranged inside the inner liner, a plurality of first sieve holes communicating with the fluidizing cavity are arranged on the inner liner, a discharge pipe is arranged at the bottom of the fluidizing tank, the discharge pipe is passed through the outer shell, and the plugging member can be openably covered at the bottom end of the discharge pipe;

[0008] A first screen is installed in the diverter tower, the first screen is located below the fluidizing tank, and the first screen is provided with second screen holes;

[0009] The waste slurry circulation pump is used to pump the waste slurry water in the water storage tank into the fluidizing tank through a pipeline.

[0010] A concrete diversion device according to an embodiment of the present invention has at least the following beneficial effects:

[0011] The water reservoir can receive waste water from cleaning mixing tank trucks and washing sites. The agitator inside can prevent the larger solid particles in the waste slurry from settling. The remaining and scrapped concrete waste slurry at the construction site enters the fluidizing tank. The fluidizing drive assembly drives the fluidizing tank to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir into the fluidizing tank through the pipeline. Under the action of the centrifugal vortex, the aggregates in the concrete waste slurry are separated from the initial position and rotate together with the inner wall of the fluidizing tank. The cement slurry of the concrete waste slurry falls off from the surface of the aggregate with the circulation of the waste slurry water and finally flows into the water reservoir for precipitation. After the concrete is fully fluidized, the plugging piece is manually removed to open the discharge pipe, and the aggregate falls onto the first screen, which can realize the precise separation and reuse of concrete slurry and aggregate, effectively avoid the problem of environmental pollution caused by building materials, strengthen the reuse of recyclable aggregates, save raw materials, and have good ecological and economic benefits.

[0012] According to some embodiments of the present invention, the concrete diversion device also includes a first material shaking mechanism, which includes a first material shaking assembly and a second material shaking assembly, the first material shaking assembly connects the edge of the first screen and the inner wall of the diversion tower, the second material shaking assembly connects the edge of the first screen and the inner wall of the diversion tower, the first material shaking assembly and the second material shaking assembly are spaced apart, and the first material shaking mechanism is used to drive the first screen to vibrate.

[0013] According to some embodiments of the present invention, the first material shaking assembly includes a rotating disk, a connecting rod, a first limit member and a first slider, the rotating disk and the first limit member are installed on the inner wall of the diversion tower, the first slider is slidably connected to the first limit member, one end of the connecting rod is hinged at the eccentric point of the rotating disk, the other end of the connecting rod is hinged to one end of the first slider, and the other end of the first slider is connected to the edge of the first screen.

[0014] According to some embodiments of the present invention, the first material shaking assembly also includes a first material shaking spring and a first ball, a first sliding cavity is provided in the first limiting member, the rotating disk, the first material shaking spring and the first ball are installed in the first sliding cavity, one end of the first sliding slider extends into the first sliding cavity, and the first ball is located between the first sliding slider and the inner wall of the first sliding cavity.

[0015] According to some embodiments of the present invention, the second material shaking assembly includes a second limit member and a second slider, the second limit member is installed on the inner wall of the diversion tower, the second slider is slidably connected to the second limit member, and one end of the second slider is connected to the edge of the first screen.

[0016] According to some embodiments of the present invention, the first screen is arranged in a conical shape, and the cross-sectional area of ​​the first screen gradually increases in the upward direction. A first discharge port is arranged at the lower end of the first screen, and a first discharge mechanism is arranged at the first discharge port. The first discharge mechanism can be opened to cover the first discharge port, and a first feeding piece for discharging material discharged from the first discharge port is arranged below the first discharge port.

[0017] According to some embodiments of the present invention, the first unloading mechanism includes a third limit piece, a support spring, a pressure rod and a baffle, the third limit piece is installed on the first feeding piece, a limit chamber is arranged in the third limit piece, the support spring is installed in the limit chamber, one end of the baffle is hinged to the first screen near the first unloading port, the other end of the baffle is hinged to one end of the pressure rod, the other end of the pressure rod extends into the limit chamber and abuts against one end of the support spring, a snap piece is protruding in the limit chamber, the first unloading mechanism includes a first state and a second state, when the first unloading mechanism is in the first state, the baffle covers the first unloading port, and the support spring is extended; when the first unloading mechanism is in the second state, the first unloading port is opened, the support spring is compressed, and the snap piece abuts against the upper end of the support spring.

[0018] According to some embodiments of the present invention, the concrete diversion device further includes a second screen, the second screen is installed in the diversion tower, the second screen is located below the first screen, a third screen hole is provided on the second screen, the aperture of the third screen hole is smaller than the aperture of the second screen hole, the aperture of the second screen hole is not less than 4.75 mm, and the aperture range of the third screen hole is 0.15 mm to 4.75 mm;

[0019] A second discharge port is arranged at the bottom of the second screen, a second discharge mechanism is arranged at the second discharge port, the second discharge mechanism can be opened to cover the second discharge port, and a second feeding piece for discharging materials discharged from the second discharge port is arranged below the second discharge port.

[0020] A method for modifying waste pulp comprises the following steps:

[0021] Collect waste slurry water and flow it into the reservoir through pipelines;

[0022] The waste concrete slurry enters the fluidizing chamber, and the fluidizing drive assembly drives the fluidizing tank to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir into the fluidizing tank through the waste slurry circulation pipeline. The cement slurry of the waste concrete slurry falls off from the surface of the aggregate as the waste slurry water circulates and finally flows into the water reservoir for sedimentation.

[0023] After the concrete is fully fluidized, the plugging piece is manually removed to open the discharge pipe, and the aggregate falls onto the first screen. The first and second shaking assemblies drive the first screen to vibrate, and small particles of aggregate fall onto the second screen along the second screen holes, and the residual cement slurry on the aggregate flows out along the second and third screen holes.

[0024] Large aggregate particles accumulate on the first screen and push the first discharge mechanism open under the action of gravity and are discharged along the first feeding piece. Small aggregate particles accumulate on the second screen and push the second discharge mechanism open under the action of gravity and are discharged along the second feeding piece. Large aggregate particles and small aggregate particles are transferred to the production room of the ready-mixed plant and put into the mixing of concrete.

[0025] Start the agitator to stir the cement slurry and waste slurry water in the water storage tank, add the concrete waste slurry modifier, and then pump it to the production line through a water pump.

[0026] A waste pulp modification treatment method according to an embodiment of the present invention has at least the following beneficial effects:

[0027] The water reservoir can receive waste water from cleaning mixing tank trucks and washing sites. The concrete waste slurry modifier can modify the cement slurry and waste water in the water reservoir. The agitator can prevent the precipitation of larger solid particles in the waste slurry and mix the chemical modifier added to the waste slurry evenly. The remaining and scrapped concrete waste slurry at the construction site enters the fluidizing tank. The fluidizing drive assembly drives the fluidizing tank to rotate, and the waste slurry circulation pump pumps the waste slurry water in the water reservoir into the fluidizing tank through the pipeline. Under the action of the centrifugal vortex, the aggregates in the concrete waste slurry are separated from the initial position and rotate together with the inner wall of the fluidizing tank. The cement slurry of the concrete waste slurry falls off from the surface of the aggregates as the waste slurry water circulates and finally flows into the water reservoir for precipitation. After the concrete is fully fluidized, the sealing piece is manually removed to open the discharge pipe, and the aggregate falls onto the first screen, which can achieve accurate separation and reuse of concrete slurry and aggregate, effectively avoid the problem of environmental pollution caused by building materials, strengthen the reuse of recyclable aggregates, save raw materials, and have good ecological and economic benefits.

[0028] According to some embodiments of the present invention, the concrete waste slurry modifier includes triethanolamine and sodium gluconate, and the amount of triethanolamine is 7.59kg to 8.58kg per cubic meter of concrete treated; the amount of sodium gluconate is 0.23kg to 0.26kg per cubic meter of concrete treated.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0031] Figure 1 It is a structural schematic diagram of a concrete diversion device according to an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a first material shaking assembly of a concrete diversion device according to an embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of a second material shaking assembly of a concrete diversion device according to an embodiment of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a first screen and a first discharge mechanism of a concrete diversion device according to an embodiment of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a third position-limiting member and a supporting spring when a first material-shaking mechanism of a concrete flow diversion device according to an embodiment of the present invention is in a first state;

[0036] Figure 6It is a structural schematic diagram of a third limiter and a supporting spring when a first material shaking mechanism of a concrete diversion device according to an embodiment of the present invention is in a second state.

[0037] Figure Number:

[0038] 100, splitter tower; 110, water reservoir; 111, agitator;

[0039] 200, fluidizing mechanism; 210, fluidizing tank; 211, outer shell; 212, liner; 2121, first sieve hole; 2122, discharge pipe; 2123, transmission screw;

[0040] 300, first screen; 310, second screen hole; 320, first discharge port; 330, first material feeding member;

[0041] 400, first material shaking mechanism; 410, first material shaking assembly; 411, rotating disk; 412, connecting rod; 413, first stopper; 414, first slider; 415, first material shaking spring; 416, first ball; 420, second material shaking assembly; 421, second stopper; 422, second slider; 423, second material shaking spring; 424, second ball; 430, second material shaking mechanism;

[0042] 500, first unloading mechanism; 510, third limiting member; 511, buckle member; 520, supporting spring; 530, pressure rod; 540, baffle; 550, second unloading mechanism;

[0043] 600, second screen; 610, third screen hole; 620, second material feeding member;

[0044] 700. Conveyor belt. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] See also Figure 1 , Figure 2 and Figure 3 A concrete diversion device according to an embodiment of the present invention comprises a diversion tower 100, a water reservoir 110 is arranged at the bottom of the diversion tower 100, the water reservoir 110 is used to receive waste slurry water, a stirrer 111 is arranged in the water reservoir 110, the stirrer 111 comprises a vortex blade and a driving member, and the driving member drives the vortex blade to rotate to achieve stirring. The fluidization mechanism 200 comprises a fluidization tank 210, a plugging member and a fluidization drive assembly. The fluidization tank 210 is installed above the diversion tower 100, and the fluidization tank 210 comprises an outer shell 211 and an inner liner 212, the inner liner 212 is rotatably connected in the outer shell 211, the inner liner 212 is transmission-connected to the fluidization drive assembly, the fluidization drive assembly is used to drive the inner liner 212 to rotate, the fluidization drive assembly comprises a driving motor, and a hollow transmission screw 2123 is connected to the top of the inner liner 212, and the concrete waste slurry is introduced into the inner liner 212 through a pipeline in the transmission screw 2123 via a mixer truck or other means. A fluidizing chamber is arranged inside the inner liner 212 , and a plurality of first sieve holes 2121 connected to the fluidizing chamber are arranged on the inner liner 212 . A discharge pipe 2122 is arranged at the bottom of the inner liner 212 . The discharge pipe 2122 penetrates the outer shell 211 , and a plugging piece can be openably covered at the bottom end of the discharge pipe 2122 .

[0049] The fluidized tank 210 is a double-layer spherical structure, with a pump pipe connection port at the top. The tank body is fixed to the upper part of the diverter tower 100, with a transmission screw 2123 connected to the top and a discharge pipe 2122 at the bottom. The transmission screw 2123 is fixed to the top of the outer wall of the tank liner 212 through 8 ribs, and the transmission screw 2123 is connected to the outer wall of the fluidized tank 210 through a ball. The discharge pipe 2122 at the bottom of the fluidized tank 210 supports the inner liner 212 of the fluidized tank 210 through a bearing. Both the transmission screw 2123 and the discharge pipe 2122 can pass through concrete or aggregate.

[0050] The cavity formed by the shell 211 of the fluidizing tank 210 can hold waste slurry water, which is convenient for separating the slurry and aggregate of concrete; the inner tank 212 of the fluidizing tank 210 is a concrete fluidizing chamber, the upper part of which is connected to the transmission screw 2123, and the inner wall of the lower part is provided with small holes to facilitate the outflow of slurry. The external motor (fluidizing drive assembly) drives the transmission screw 2123 and the inner tank 212 of the fluidizing tank 210 connected to the transmission screw 2123 to rotate through a belt (waste slurry water has been introduced into the tank at this time); under the action of the centrifugal vortex, the aggregates in the concrete are separated from the initial position and rotate together with the inner wall of the tank; in addition, the cement slurry in the concrete falls off from the surface of the aggregate with the circulation of the waste slurry water and finally flows into the water reservoir 110 for precipitation. After the concrete is fully fluidized, it is necessary to manually remove the plugging piece to open the discharge pipe 2122, and the aggregates fall onto the first screen 300.

[0051] The first screen 300 is installed in the diverter tower 100, and the first screen 300 is located below the fluidizing tank 210. The first screen 300 is provided with a second screen hole 310. The waste slurry circulation mechanism includes a waste slurry circulation pump and a waste slurry circulation pipeline connected to each other, and the waste slurry circulation pump pumps the waste slurry water in the water storage tank 110 into the fluidizing tank 210 through the waste slurry circulation pipeline.

[0052] The water reservoir 110 can receive waste slurry water for cleaning the mixing tank truck and washing the site, and the agitator 111 therein can prevent the larger solid particles in the waste slurry from settling. The remaining and scrapped concrete waste slurry at the construction site enters the fluidizing tank 210, and the fluidizing drive assembly drives the fluidizing tank 210 to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir 110 into the fluidizing tank 210 through the waste slurry circulation pipeline. Under the action of the centrifugal vortex, the aggregates in the concrete waste slurry are separated from the initial position and rotate together with the inner wall of the fluidizing tank 210. The cement paste of the concrete waste slurry falls off from the surface of the aggregates as the waste slurry water circulates and finally flows into the water reservoir 110 for precipitation. After the concrete is fully fluidized, the sealing piece is manually removed to open the discharge pipe 2122, and the aggregate falls onto the first screen 300, so that the concrete slurry and aggregate can be accurately separated and reused, which can effectively avoid the problem of environmental pollution caused by building materials, strengthen the reuse of recyclable aggregates, save raw materials, and have good ecological and economic benefits.

[0053] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The concrete diversion device further includes a first shaking mechanism 400, which includes a first shaking assembly 410 and a second shaking assembly 420. The first shaking assembly 410 connects the edge of the first screen 300 and the inner wall of the diversion tower 100, and the second shaking assembly 420 connects the edge of the first screen 300 and the inner wall of the diversion tower 100. The first shaking assembly 410 and the second shaking assembly 420 are arranged at intervals, and the first shaking mechanism 400 is used to drive the first screen 300 to vibrate. The first shaking mechanism 400 drives the first screen 300 to vibrate, so that the aggregate on the first screen 300 vibrates, and the cement slurry on the aggregate can fall along the second screen hole 310 to the water reservoir 110 for precipitation.

[0054] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The first shaking assembly 410 includes a rotating disk 411, a connecting rod 412, a first stopper 413 and a first slider 414. The rotating disk 411 and the first stopper 413 are mounted on the inner wall of the diversion tower 100, the first slider 414 is slidably connected to the first stopper 413, one end of the connecting rod 412 is hinged at the eccentric position of the rotating disk 411, the other end of the connecting rod 412 is hinged to one end of the first slider 414, and the other end of the first slider 414 is connected to the edge of the first screen 300. The rotating disk 411 rotates, driving the first connecting rod 412 to move, driving the first slider 414 to move back and forth on the first stopper 413, and then driving the first screen 300 to shake back and forth.

[0055] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The first shaking material assembly 410 also includes a first shaking material spring 415 and a first ball 416. A first sliding cavity is arranged in the first limiter 413. The rotating disk 411, the first shaking material spring 415 and the first ball 416 are installed in the first sliding cavity. One end of the first slider 414 extends into the first sliding cavity. The first ball 416 is located between the first slider 414 and the inner wall of the first sliding cavity. The first shaking material spring 415 is arranged in the first sliding cavity to buffer the first slider 414, so that the first slider 414 moves smoothly. The first ball 416 is arranged between the first slider 414 and the inner wall of the first sliding cavity to reduce the friction between the first slider 414 and the inner wall of the first sliding cavity, so as to ensure that the first slider 414 moves back and forth more smoothly.

[0056] In some embodiments, see Figure 1 , Figure 2 and Figure 3The second shaking material assembly 420 includes a second stopper 421 and a second slider 422. The second stopper 421 is mounted on the inner wall of the diverter tower 100. The second slider 422 is slidably connected to the second stopper 421. One end of the second slider 422 is connected to the edge of the first screen 300. The second shaking material assembly 420 is disposed on the opposite side of the first shaking material assembly 410. When the first shaking material assembly 410 drives the first screen 300 to shake back and forth, the second shaking material assembly 420 can tighten the other side of the first screen 300.

[0057] The second shaking material assembly 420 also includes a second shaking material spring 423 and a second ball 424. A second sliding cavity is provided in the second limiter 421. The second shaking material spring 423 and the second ball 424 are installed in the second sliding cavity. One end of the second slider 422 extends into the second sliding cavity. The second ball 424 is located between the second slider 422 and the inner wall of the second sliding cavity. The second shaking material spring 423 is provided in the second sliding cavity to provide a buffer for the second slider 422, so that the second slider 422 moves smoothly. The second ball 424 is provided between the second slider 422 and the inner wall of the second sliding cavity to reduce the friction between the second slider 422 and the inner wall of the second sliding cavity, so as to ensure that the second slider 422 moves back and forth more smoothly.

[0058] In some embodiments, see Figure 1 and Figure 4 , the first screen 300 is set in a conical shape, and the cross-sectional area of ​​the first screen 300 in the upward direction gradually increases. The first discharge port 320 is set at the lower end of the first screen 300, and the first discharge port 320 is provided with a first discharge mechanism 500, and the first discharge mechanism 500 can be opened to cover the first discharge port 320. A first feed piece 330 is set below the first discharge port 320, and the first feed piece 330 is used to discharge the materials discharged from the first discharge port 320. The first feed piece 330 can be a chute, and the other end of the chute is connected to a conveyor belt 700, and the conveyor belt can transport the separated large-particle aggregate. The first screen 300 is set in a conical shape, so that the concrete aggregate can gather at the bottom of the first screen 300. The first discharge mechanism 500 opens the first discharge port 320, and the aggregate can fall onto the first feed piece 330 along the first discharge port 320.

[0059] In some embodiments, see Figure 1 and Figure 4The first unloading mechanism 500 includes a third limiter 510, a support spring 520, a pressure rod 530 and a baffle 540. The third limiter 510 is installed on the first feeding member 330. A limit chamber is set in the third limiter 510. The support spring 520 is installed in the limit chamber. One end of the baffle 540 is hinged to the first screen 300 near the first unloading port 320, and the other end of the baffle 540 is hinged to one end of the pressure rod 530. The other end of the pressure rod 530 extends into the limit chamber and abuts against one end of the support spring 520. A buckle 511 is protruding from the limit chamber. Figure 5 and Figure 6 The first unloading mechanism 500 includes a first state and a second state. When the first unloading mechanism 500 is in the first state, the baffle 540 covers the first unloading port 320, and the support spring 520 is extended; when the first unloading mechanism 500 is in the second state, the first unloading port 320 is opened, the support spring 520 is compressed, and the snap member 511 abuts against the upper end of the support spring 520.

[0060] In the initial state, the first discharge mechanism 500 is in the first state, the support spring 520 supports the baffle 540 through the pressure rod 530, and the baffle 540 blocks the first discharge port 320. As the aggregate on the first screen 300 increases, the baffle 540 bears the gravity of the aggregate, and the baffle 540 squeezes the support spring 520 through the pressure rod 530, and the support spring 520 is compressed to the lowest point. The first discharge mechanism 500 is in the second state, the buckle 511 clamps the upper end of the support spring 520, the first discharge port 320 is fully opened, and the aggregate falls into the first feed member 330 along the first discharge port 320. As the aggregate continues to slide down, the amount of aggregate above the baffle 540 decreases, and when the combined force of the aggregate weight and the snap-fitting member 511 is insufficient to resist the elastic force of the support spring 520, the support spring 520 opens and causes the baffle 540 to reset via the pressure rod 530. The baffle 540 covers the first discharge port 320, and the first discharge mechanism 500 is in the first state.

[0061] In some embodiments, see Figure 1 The concrete diversion device further includes a second screen 600, which is installed in the diversion tower 100, and is located below the first screen 300. The second screen 600 is provided with a third screen hole 610, and the aperture of the third screen hole 610 is smaller than that of the second screen hole 310, and the aperture of the second screen hole 310 is not less than 4.75 mm, and the aperture range of the third screen hole 610 is 0.15 mm to 4.75 mm. The first screen 300 and the second screen 600 are provided, and the aperture of the third screen hole 610 is smaller than that of the second screen hole 310, so that the first screen 300 can screen out large-particle aggregates, and the second screen 600 can screen out small-particle aggregates, so that the aggregates can be screened by size.

[0062] A second discharge port is provided at the bottom of the second screen 600, and a second discharge mechanism 550 is provided at the second discharge port. The second discharge mechanism 550 can be opened to cover the second discharge port, and a second material feeding member 620 is provided below the second discharge port. The second material feeding member 620 is used to discharge the material discharged from the second discharge port. The second discharge mechanism 550 is similar in structure to the first discharge mechanism 500.

[0063] A second shaking mechanism 430 is also provided on the second screen 600. The second shaking mechanism 430 connects the second screen 600 and the inner wall of the diversion tower 100. The second shaking mechanism 430 is used to drive the second screen 600 to vibrate. The structure of the second shaking mechanism 430 is similar to that of the first shaking mechanism 400.

[0064] See also Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, a waste pulp modification treatment method comprises the following steps:

[0065] Waste slurry water is collected and flows into the water reservoir 110 through the pipeline. In order to centrally treat and modify the waste concrete slurry, the waste slurry water generated in the production process of commercial concrete is first collected. The waste slurry water generated by cleaning the mixing transport tank truck and the mixer is discharged through the wastewater pipeline, and the waste slurry water generated by flushing the site is collected in the water reservoir 110 through the pipeline network, and then the waste slurry water in the water reservoir 110 is pumped to the fluidizing tank 210 by the waste slurry circulation pump.

[0066] The waste concrete slurry enters the fluidizing chamber, and the fluidizing drive assembly drives the fluidizing tank 210 to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir 110 into the fluidizing tank 210 through the waste slurry circulation pipeline. The cement slurry of the waste concrete slurry falls off from the surface of the aggregate as the waste slurry water circulates and finally flows into the water reservoir 110 for precipitation. It is mainly aimed at the diversion treatment of the coarse and fine aggregates and cement slurry of the remaining and returned concrete at the pouring site. The returned concrete is poured into the fluidizing tank 210 through an external funnel, and the concrete slurry and aggregate are separated. The slurry flows into the water reservoir 110 with the waste slurry water circulation for storage and recycling. The coarse aggregate and fine aggregate are precipitated on the inner liner 212 of the fluidizing tank 210, and can fall onto the first screen 300 below through the discharge pipe 2122.

[0067] After the concrete is fully fluidized, the plugging piece is manually removed to open the discharge pipe 2122, and the aggregate falls onto the first screen 300. The first shaking assembly 410 and the second shaking assembly 420 drive the first screen 300 to vibrate, and the small particles of aggregate fall onto the second screen 600 along the second screen hole 310, and the residual cement slurry on the aggregate flows out along the second screen hole 310 and the third screen hole 610. After the concrete in the fluidizing tank 210 separates the cement paste in the concrete and merges into the waste slurry water, the coarse aggregate and fine aggregate, i.e., stone and sand, originally in the concrete remain. The aggregate can be poured into the screen funnel through the discharge pipe 2122 below the fluidizing tank 210. During the pouring process, the first shaking assembly 410 is started to facilitate the sand with smaller particle size in the first screen 300 to be shaken off onto the second screen 600 and the moisture on the surface of the aggregate to be shaken off. The aggregates slide down and are conveyed to the production room of the ready-mix plant through an external conveyor belt 700, and are put into the mixing of concrete together with other aggregates of the same specifications.

[0068] The large aggregate particles on the first screen 300 accumulate and push the first discharge mechanism 500 open under the action of gravity and are discharged along the first feed member 330. The small aggregate particles on the second screen 600 accumulate and push the second discharge mechanism 550 open under the action of gravity and are discharged along the second feed member 620. The large aggregate particles and the small aggregate particles are transferred to the production room of the ready-mixed plant and put into the mixing of concrete.

[0069] Start the agitator 111, stir the cement slurry and waste slurry water in the water tank 110, add the concrete waste slurry modifier, and then pump it to the production line through the water pump. After all the waste slurry obtained in the concrete diversion link flows into the water tank 110 with the waste slurry water, start the vortex blade (agitator 111) at the bottom of the water tank 110, which mainly prevents the precipitation of larger solid particles in the waste slurry and stirs the chemical modifier added to the waste slurry evenly. After the vortex blade is started, add triethanolamine and sodium gluconate, where triethanolamine can absorb Al in the waste slurry. 3+ , Fe 3+ Plasma and sodium gluconate effectively delay the hydration of silicates. The modified waste slurry is stirred evenly and then passed into the production room of the ready-mixed plant through a special water pump, mixed with clean water in a certain proportion and used as mixing water for concrete.

[0070] The water reservoir 110 can receive waste slurry water from cleaning the mixing tank truck and washing the site. The concrete waste slurry modifier can modify the cement slurry and waste slurry water in the water reservoir 110. The agitator 111 can prevent the precipitation of larger solid particles in the waste slurry and stir the chemical modification reagent added to the waste slurry evenly. The remaining and scrapped concrete waste slurry at the construction site enters the fluidizing tank 210. The fluidizing drive assembly drives the fluidizing tank 210 to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir 110 into the fluidizing tank 210 through the pipeline. Under the action of the centrifugal vortex, the aggregates in the concrete waste slurry are separated from the initial position and rotate together with the inner wall of the fluidizing tank 210. The cement slurry of the concrete waste slurry falls off from the surface of the aggregates as the waste slurry water circulates and finally flows into the water reservoir 110 for precipitation. After the concrete is fully fluidized, the sealing piece is manually removed to open the discharge pipe 2122, and the aggregate falls onto the first screen 300, so that the concrete slurry and aggregate can be accurately separated and reused, which can effectively avoid the problem of environmental pollution caused by building materials, strengthen the reuse of recyclable aggregates, save raw materials, and have good ecological and economic benefits.

[0071] In some embodiments, see Figure 1 The concrete waste slurry modifier includes triethanolamine and sodium gluconate. The amount of triethanolamine is calculated at 7.59kg to 8.58kg per cubic meter of concrete treated; the amount of sodium gluconate is calculated at 0.23kg to 0.26kg per cubic meter of concrete treated. Triethanolamine can absorb Al in the waste slurry. 3+ , Fe 3+ Plasma, sodium gluconate effectively delays the hydration of silicates.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A concrete diversion device, characterized in that: include: A diverter tower, wherein a water reservoir for receiving waste slurry water is provided at the bottom of the diverter tower, and an agitator is provided in the water reservoir; A fluidizing mechanism, comprising a fluidizing tank, a plugging member and a fluidizing drive assembly, wherein the fluidizing tank is used for fluidizing waste concrete slurry, the fluidizing tank is installed above the diverter tower, the fluidizing tank comprises an inner liner and an outer shell, the inner liner is rotatably connected in the outer shell, the inner liner is in transmission connection with the fluidizing drive assembly, the fluidizing drive assembly is used to drive the inner liner to rotate, a fluidizing cavity is arranged inside the inner liner, a plurality of first sieve holes communicating with the fluidizing cavity are arranged on the inner liner, a discharge pipe is arranged at the bottom of the fluidizing tank, the discharge pipe is passed through the outer shell, and the plugging member can be openably covered at the bottom end of the discharge pipe; A first screen is installed in the diverter tower, the first screen is located below the fluidizing tank, and the first screen is provided with second screen holes; The waste slurry circulation pump is used to pump the waste slurry water in the water storage tank into the fluidizing tank through a pipeline.

2. A concrete diversion device according to claim 1, characterized in that: It also includes a first material shaking mechanism, which includes a first material shaking component and a second material shaking component. The first material shaking component connects the edge of the first screen and the inner wall of the diverter tower, and the second material shaking component connects the edge of the first screen and the inner wall of the diverter tower. The first material shaking component and the second material shaking component are spaced apart, and the first material shaking mechanism is used to drive the first screen to vibrate.

3. A concrete diversion device according to claim 2, characterized in that: The first material shaking assembly includes a rotating disk, a connecting rod, a first limit member and a first slider. The rotating disk and the first limit member are installed on the inner wall of the diversion tower. The first slider is slidably connected to the first limit member. One end of the connecting rod is hinged at the eccentric point of the rotating disk, and the other end of the connecting rod is hinged to one end of the first slider. The other end of the first slider is connected to the edge of the first screen.

4. A concrete diversion device according to claim 3, characterized in that: The first material shaking assembly also includes a first material shaking spring and a first ball. A first sliding cavity is provided in the first limiting member. The rotating disk, the first material shaking spring and the first ball are installed in the first sliding cavity. One end of the first sliding slider extends into the first sliding cavity. The first ball is located between the first sliding slider and the inner wall of the first sliding cavity.

5. A concrete diversion device according to claim 2, characterized in that: The second material shaking assembly includes a second limiter and a second slider, the second limiter is installed on the inner wall of the diversion tower, the second slider is slidably connected to the second limiter, and one end of the second slider is connected to the edge of the first screen.

6. A concrete diversion device according to claim 1, characterized in that: The first screen is arranged in a conical shape, and the cross-sectional area of ​​the first screen gradually increases in the upward direction. A first discharge port is arranged at the lower end of the first screen, and a first discharge mechanism is arranged at the first discharge port. The first discharge mechanism can be opened to cover the first discharge port, and a first feeding piece for discharging the material discharged from the first discharge port is arranged below the first discharge port.

7. A concrete diversion device according to claim 6, characterized in that: The first unloading mechanism includes a third limit piece, a supporting spring, a pressure rod and a baffle, the third limit piece is installed on the first feeding piece, a limit chamber is arranged in the third limit piece, the supporting spring is installed in the limit chamber, one end of the baffle is hinged to the first screen near the first unloading port, the other end of the baffle is hinged to one end of the pressure rod, the other end of the pressure rod extends into the limit chamber and abuts against one end of the supporting spring, a snap piece is protruded in the limit chamber, the first unloading mechanism includes a first state and a second state, when the first unloading mechanism is in the first state, the baffle covers the first unloading port, and the supporting spring is extended; when the first unloading mechanism is in the second state, the first unloading port is opened, the supporting spring is compressed, and the snap piece abuts against the upper end of the supporting spring.

8. A concrete diversion device according to claim 1, characterized in that: It also includes a second screen, which is installed in the diverter tower, the second screen is located below the first screen, and a third screen hole is provided on the second screen, the aperture of the third screen hole is smaller than the aperture of the second screen hole, the aperture of the second screen hole is not less than 4.75 mm, and the aperture range of the third screen hole is 0.15 mm to 4.75 mm; A second discharge port is arranged at the bottom of the second screen, a second discharge mechanism is arranged at the second discharge port, the second discharge mechanism can be opened to cover the second discharge port, and a second feeding piece for discharging materials discharged from the second discharge port is arranged below the second discharge port.

9. A method for modifying and treating waste slurry using the concrete diversion device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Collect waste slurry water and flow it into the reservoir through pipelines; The waste concrete slurry enters the fluidizing tank, and the fluidizing drive assembly drives the inner tank to rotate. The waste slurry circulation pump pumps the waste slurry water in the water reservoir into the fluidizing tank through the pipeline. The cement paste of the waste concrete slurry falls off from the surface of the aggregate with the circulation of the waste slurry water and finally flows into the water reservoir for sedimentation. After the concrete is fully fluidized, the plugging piece is manually removed to open the discharge pipe, and the aggregate falls onto the first screen. The first and second shaking assemblies drive the first screen to vibrate, and small particles of aggregate fall onto the second screen along the second screen holes, and the residual cement slurry on the aggregate flows out along the second and third screen holes. Large aggregate particles accumulate on the first screen and push the first discharge mechanism open under the action of gravity and are discharged along the first feeding piece. Small aggregate particles accumulate on the second screen and push the second discharge mechanism open under the action of gravity and are discharged along the second feeding piece. Large aggregate particles and small aggregate particles are transferred to the production room of the ready-mixed plant and put into the mixing of concrete. Start the agitator to stir the cement slurry and waste slurry water in the water storage tank, add the concrete waste slurry modifier, and then pump it to the production line through a water pump.

10. A waste pulp modification treatment method according to claim 9, characterized in that: The concrete waste slurry modifier includes triethanolamine and sodium gluconate, wherein the triethanolamine is used in an amount of 7.59kg to 8.58kg per cubic meter of concrete treated; and the sodium gluconate is used in an amount of 0.23kg to 0.26kg per cubic meter of concrete treated.

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