A recycling and disposal system for residual concrete on a concrete transport vehicle

Abstract

The present invention discloses a recycling and disposal system for residual concrete on a concrete transport vehicle, wherein a drainage trough is obliquely arranged on a cleaning rack, a cleaning nozzle is arranged above the drainage trough, a splash plate is arranged in the drainage trough, a vibrating screen is arranged at the water outlet of the drainage trough, and the vibrating screen is obliquely arranged above a mixing water pool, a feed port of a spiral silt separator is arranged in the mixing water pool, a feeding belt is arranged at the discharge port of the spiral silt separator and the discharge port of the vibrating screen, and a slurry water tank is connected to the mixing water pool. The present invention converts the existing "separation of fine solids less than 5 mm" into "utilization of fine solids less than 5 mm", which can realize the reuse of waste on the one hand, and on the other hand, compared with the environmental protection implementation cost of the existing "separation of fine solids", the present invention is easier to implement and has lower cost.

Description

Technical field:

[0001] The invention relates to a recycling and disposal system for residual concrete on a concrete transport vehicle. Background technology:

[0002] The existing concrete waste recycling and treatment system pursues the cleanliness of the liquid after cleaning, and the configuration of the equipment is carried out to pursue this goal. The equipment is becoming more and more complicated, and the cost is increasing. Although the water is much cleaner, the most fundamental environmental protection and conservation issues have not been solved. For example, the treatment of fine particles in recycling is not scientific enough. For the collection, transportation, drying, storage, metering and reuse of these substances, the dripping and flying problems in these processes will bring pollution and waste again. Summary of the invention:

[0003] The present invention provides a system for recovering and disposing residual concrete on a concrete transport vehicle in order to solve the problems existing in the above-mentioned prior art.

[0004] The technical solutions adopted in the present invention are:

[0005] A system for recycling and disposing of residual concrete on a concrete transport vehicle comprises a cleaning nozzle, a cleaning rack, a drainage trough, a splash plate, a vibrating screen, a spiral silt sand separator, a mixing water pool, a feeding belt and a slurry water tank, wherein the drainage trough is arranged obliquely on the cleaning rack, the cleaning nozzle is arranged above the drainage trough, the splash plate is arranged in the drainage trough, the vibrating screen is arranged at the water outlet of the drainage trough, and the vibrating screen is arranged obliquely above the mixing water pool, the feeding port of the spiral silt sand separator is arranged in the mixing water pool, a feeding belt is provided at the discharge port of the spiral silt sand separator and the discharge port of the vibrating screen, and the slurry water tank is communicated with the mixing water pool.

[0006] Furthermore, the cross-section of the drainage groove is an arc-shaped inverted V structure with a bottom surface, a plurality of splash-proof plates are elastically supported on the inner wall of the drainage groove, and a splash-proof groove is provided on the upper end surface of the splash-proof plate.

[0007] Furthermore, the splash plate is rotatably connected to the inner wall of the drainage trough via an axle pin, and a spring is provided between the splash plate and the drainage trough.

[0008] Furthermore, a sieve plate is provided in the vibrating screen, and a plurality of screening slots are arranged along the inclination direction of the vibrating screen on the upper end surface of the sieve plate. When the sieve plate screens the concrete residue, the concrete residue with a particle size greater than 5 mm is placed on the upper end surface of the sieve plate, and the concrete residue with a particle size less than or equal to 5 mm falls into the screening slots.

[0009] Furthermore, the upper end surface of the sieve plate is higher than the upper port surface of the mixing water tank, so that the concrete residue with a particle size greater than 5 mm on the upper end surface of the sieve plate is discharged out of the mixing water tank and sent away by the feeding belt; the bottom surface of the screening trough is lower than the upper port surface of the mixing water tank, so that the concrete residue falling into the screening trough is discharged into the mixing water tank.

[0010] Furthermore, the cross section of the sieve plate is wavy, and a plurality of parallel partition ribs are provided on the upper end surface of the sieve plate, and screening grooves that are narrow at the top and wide at the bottom are formed between adjacent partition ribs.

[0011] Furthermore, the spiral blades in the spiral sand separator are provided with sieve holes, and the aperture of the sieve holes is 5 mm.

[0012] Furthermore, the liquid outlet on the mixing water pool is higher than the upper surface of the slurry water tank.

[0013] Furthermore, a stirring shaft is provided on the slurry water tank, and a high-pressure air jet nozzle is provided inside the slurry water tank.

[0014] Furthermore, a flushing pipeline is provided in the drainage trough, a hopper is provided above the vibrating screen, and a water outlet of the drainage trough is placed above the hopper.

[0015] The present invention retains the fine solid matter in the return material washed from the concrete transport vehicle in water, and the recycled material enters the multi-curved vibrating screen through the inclined trough after being rinsed with water. The separated gravel and 5mm particles are sent to the gravel warehouse of the mixing station through a belt conveyor for reuse. The powder, sand and water mixture falls into the wet spiral powder sand separator through the sieve gap, and the wet sand is lifted and controlled by stirring, mixing and washing, and then transported to the mixing sand warehouse through a belt conveyor for reuse. The fine particle mixture in the wet spiral powder sand separation water tank flows into the slurry water tank, and the mixed "muddy water" is used for concrete mixing and batching in the mixing station. The beneficial effect produced thereby is that the present invention converts the existing "separation of fine solid matter less than 5mm" into "utilization of fine solid matter less than 5mm", which can realize the reuse of waste on the one hand, and on the other hand, compared with the existing environmental protection implementation cost of "separation of fine solid matter", the present invention is easier to implement and has lower cost. Description of the drawings:

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Figure 2 It is a side view of the drainage trough in the present invention.

[0018] Figure 3 It is a structural diagram of the splash plate in the present invention.

[0019] Figure 4 It is a top view of the sieve plate in the present invention.

[0020] Figure 5 It is a side view of the screen plate in the vibrating screen of the present invention.

[0021] Figure 6 This is a structural diagram of the vibrating screen above the mixing water tank in the present invention.

[0022] Figure 7 It is a partial enlarged view of the spiral silt separator in the present invention. Specific implementation method:

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1 As shown, the present invention provides a system for recycling and disposing of concrete residues on a concrete transport vehicle. The concrete residues are the concrete residues washed off the concrete transport vehicle by water during the cleaning process of the concrete transport vehicle. The recycling and disposal system is used to collect a mixture of concrete residues with a particle size less than or equal to 5 mm and cleaning water in the concrete residues.

[0025] The recycling and disposal system includes a cleaning nozzle 11, a cleaning rack 12, a drainage trough 13, a splash plate 21, a vibrating screen 31, a spiral silt separator 41, a mixing water tank 51, a feeding belt 61 and a slurry water tank 71.

[0026] The drainage trough 13 is obliquely arranged below the cleaning rack 12, and the cleaning nozzle 11 is arranged above the cleaning rack 12. After the concrete transport vehicle is in place on the cleaning rack 12, the high-pressure water pump connected to the cleaning nozzle 11 is turned on, and water is sprayed from the cleaning nozzle 11 to clean the outside of the concrete transport vehicle and the inside of the mixing tank on the concrete transport vehicle. During the cleaning process, the slurry water flowing down from the concrete transport vehicle is discharged along the drainage trough 13.

[0027] In order to prevent the dripping slurry from splashing in the drainage trough 13 and causing secondary pollution to the surrounding environment and the exterior of the transport vehicle, a plurality of splash plates 21 are provided on the inner wall of the drainage trough 13 .

[0028] like Figure 2 and Figure 3 The splash plate 21 is rotatably connected to the inner wall of the drain groove 13 through the shaft pin 22, and a spring 23 or a rubber pad is provided between the splash plate 21 and the drain groove 13, so that the splash plate 21 is elastically supported on the inner wall of the drain groove 13. The splash plate 21 is in a floating state through the spring 23. When a large piece of concrete residue falls during the spraying and washing of the concrete transport vehicle, the splash plate 21 has a buffer effect on the falling large piece of concrete residue to avoid splashing.

[0029] The splash plate 21 is connected to the inner wall of the drain trough 13 at an angle. If the concrete residue falling into the trough body of the drain trough 13 splashes, it will be blocked by the splash plate 21 which is arranged at an angle.

[0030] To further increase the anti-splashing effect, a splash-proof groove 212 is provided on the upper end surface of the splash-proof plate 21. Since the splash-proof plate 21 is inclined, most of the concrete residue falling on the upper end surface of the splash-proof plate 21 is splashed toward the bottom of the drainage trough 13 under the action of the splash-proof groove 212.

[0031] The cross section of the drainage trough 13 is an arc-shaped inverted V structure at the bottom, and the concrete residues entering the drainage trough 13 are easily deposited at the bottom of the drainage trough 13 .

[0032] In order to better drain the sediment at the bottom of the trough from the drainage trough 13, a flushing pipeline 131 is provided in the drainage trough 13. The flushing pipeline 131 flushes the sediment in the drainage trough 13 and flows it into the vibrating screen 31 for screening.

[0033] A hopper 132 is provided above the vibrating screen 31 , and the water outlet of the drainage trough 13 is placed above the hopper 132 . The hopper 132 facilitates the residual concrete to enter the vibrating screen 31 .

[0034] like Figure 4 , Figure 5 and Figure 6 The vibrating screen 31 is disposed at the water outlet of the drainage trough 13 , and the vibrating screen 31 is tilted above the mixing pool 51 .

[0035] The vibrating screen 31 is a swing vibrating screen or an eccentric block vibrating screen. A sieve plate 311 is provided inside the vibrating screen 31. The residual concrete material is screened by the swing or vibration of the vibrating screen 31.

[0036] In order to achieve screening of concrete residue, a plurality of screening slots 312 arranged along the inclination direction of the vibrating screen 31 are provided on the upper end surface of the screen plate 311. When the screen plate 311 screens concrete residue, concrete residue A with a particle size greater than 5 mm is placed on the upper end surface of the screen plate 311, and concrete residue B with a particle size less than or equal to 5 mm falls into the screening slot 312.

[0037] In order to make the concrete residue A placed on the upper end surface of the sieve plate 311 be sent out of the mixing water pool 51, and the concrete residue B falling into the screening slot 312 falls into the mixing water pool 51. When the sieve plate 311 is installed in the vibrating screen 31, the upper end surface of the sieve plate 311 is higher than the upper end surface of the mixing water pool 51, so that the concrete residue with a particle size greater than 5mm on the upper end surface of the sieve plate 311 is discharged out of the mixing water pool 51 and sent away through the feeding belt 61 outside the mixing water pool 51. The bottom surface of the screening slot 312 is lower than the upper end surface of the mixing water pool 51, so that the concrete residue falling into the screening slot 312 is discharged into the mixing water pool 51.

[0038] In order to ensure that the concrete residue A can be completely sent out of the mixing pool 51 without falling into the mixing pool 51, a guide plate 310 is provided on the screen plate 311. The guide plate 310 is flush with the upper end surface of the screen plate 311, and the end of the guide plate 310 extends out of the mixing pool 51.

[0039] The cross section of the screen plate 311 is wavy, and the wavy structure can increase the screening area. A plurality of parallel partition ribs 312 are provided on the upper end surface of the screen plate 311, and a screening slot 312 with a narrow top and a wide bottom is formed between adjacent partition ribs 312. The screening slot 312 is a narrow top and a wide bottom structure, and after the concrete residue falls into the screening slot 312, the concrete residue falling into the screening slot 312 is prevented from being ejected again during the vibration or swinging process.

[0040] The concrete residue falling into the mixing pool 51 forms “muddy water” with the water. In order to further screen out the concrete residue larger than 5 mm in the mixing pool 51 , a spiral silt separator 41 is provided in the mixing pool 51 .

[0041] like Figure 7 The feed port of the spiral silt separator 41 is arranged in the mixing water pool 51. The spiral blade 411 in the spiral silt separator 41 is provided with a screening hole 412, and the aperture of the screening hole 412 is 5 mm. A feeding belt 61 is arranged at the discharge port of the spiral silt separator 41. The spiral silt separator 41 screens out the concrete residue larger than 5 mm in the mixing water pool 51 and sends it away through the feeding belt 61. The spiral blade 411 fully stirs the solid matter so that more fine particles remain in the water. The main spiral blade part is provided with small holes, and its function is to retain as much water and fine particles as possible in the process of lifting the concrete residue.

[0042] The concrete residue and the cleaning water fall into the mixing water pool 51 to form “muddy water”. A slurry water tank 71 is connected to the mixing water pool 51 , and the liquid outlet on the mixing water pool 51 is higher than the upper surface of the slurry water tank 71 .

[0043] The lower part of the slurry tank is provided with a stirring shaft and a multi-directional high-pressure air jet nozzle to fully mix the liquid in the slurry tank and maintain a uniform mixing state. The solid content of the liquid in the slurry tank is calculated by a solid content meter, and the "muddy water" after the calculation is used for the later concrete mixing ingredients. If the "muddy water" index does not meet the use standard, cement or clean water can be added to the slurry tank 71.

[0044] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A system for recycling and disposing of residual concrete on a concrete transport vehicle. Features: The invention comprises a cleaning nozzle (11), a cleaning rack (12), a drainage trough (13), a splash plate (21), a vibrating screen (31), a spiral silt separator (41), a mixing pool (51), a feeding belt (61) and a slurry water tank (71), wherein the drainage trough (13) is arranged obliquely on the cleaning rack (12), the cleaning nozzle (11) is arranged above the drainage trough (13), the splash plate (21) is arranged in the drainage trough (13), the vibrating screen (31) is arranged at the water outlet of the drainage trough (13), and the vibrating screen (31) is arranged obliquely above the mixing pool (51), the feeding port of the spiral silt separator (41) is arranged in the mixing pool (51), a feeding belt (61) is provided at the discharge port of the spiral silt separator (41) and the discharge port of the vibrating screen (31), and the slurry water tank (71) is connected to the mixing pool (51); The cross section of the drainage groove (13) is an arc-shaped inverted V structure at the bottom, a plurality of splash plates (21) are elastically supported on the inner wall of the drainage groove (13), and a splash groove (212) is provided on the upper end surface of the splash plate (21); The splash plate (21) is rotatably connected to the inner wall of the drainage groove (13) via a shaft pin (22), and a spring (23) is provided between the splash plate (21) and the drainage groove (13); The vibrating screen (31) is provided with a sieve plate (311) therein, and a plurality of screening slots (312) are arranged along the inclination direction of the vibrating screen (31) on the upper end surface of the sieve plate (311). When the sieve plate (311) screens the concrete residue, the concrete residue with a particle size greater than 5 mm is placed on the upper end surface of the sieve plate (311), and the concrete residue with a particle size less than or equal to 5 mm falls into the screening slots (312); The upper end surface of the sieve plate (311) is higher than the upper end surface of the mixing water tank (51), so that the concrete residue with a particle size greater than 5 mm on the upper end surface of the sieve plate (311) is discharged from the mixing water tank (51) and sent away through the feeding belt (61); the bottom surface of the screening trough (312) is lower than the upper end surface of the mixing water tank (51), so that the concrete residue falling into the screening trough (312) is discharged into the mixing water tank (51); The cross section of the sieve plate (311) is wavy, and a plurality of parallel partition ribs are provided on the upper end surface of the sieve plate (311), with screening grooves (312) that are narrow at the top and wide at the bottom formed between adjacent partition ribs; The spiral blade (411) in the spiral sand separator (41) is provided with a sieve hole (412), and the sieve hole (412) has a diameter of 5 mm.

2. The system for recycling and disposing residual concrete on a concrete transport vehicle as claimed in claim 1, Features: The liquid outlet on the mixing water tank (51) is higher than the upper surface of the pulp water tank (71).

3. The system for recycling and disposing residual concrete on a concrete transport vehicle according to claim 1, Features: The slurry water tank (71) is provided with a stirring shaft, and a high-pressure air jet nozzle is provided inside the slurry water tank (71).

4. The system for recycling and disposing residual concrete on a concrete transport vehicle as claimed in claim 1, Features: A flushing pipeline (131) is provided in the drainage trough (13), a hopper (132) is provided above the vibrating screen (31), and a water outlet of the drainage trough (13) is placed above the hopper (132).

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