Waste muck regeneration treatment equipment

Abstract

Waste muck regeneration treatment equipment comprises a slurrying device and a stirring and discharging device, the slurrying device mixes and stirs sand washing slurry, clear water, filter pressing mud cakes and tail mud to prepare slurry, and the slurry is discharged through the stirring and discharging device. Comprising a main pulping machine, a sewage storage pool used for supplying sand washing slurry to the main pulping machine, a clear water storage pool used for supplying clear water to the main pulping machine, a first feeding machine used for supplying filter pressing mud cakes and tail mud to the main pulping machine, and a liquid storage pool connected with the main pulping machine and used for temporarily storing slurry, the first feeding machine is used for uniformly mixing and stirring the entered filter-pressing mud cake and tail mud and then conveying the mixture into the main pulping machine; the stirring and discharging device comprises a stirrer connected with the liquid storage tank, a sand material supply mechanism connected with the stirrer and used for supplying sand materials, and an additive supply mechanism connected with the stirrer and used for supplying additives; by limiting the structural composition of regeneration treatment equipment, waste engineering muck resources can be recycled, qualified materials capable of being applied to pipe gallery backfilling are produced, the waste muck treatment problem is solved, and the resource utilization rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of waste soil recycling and treatment, and specifically relates to a waste soil recycling and treatment equipment. Background Technology

[0002] With rapid economic growth, problems such as high resource consumption, significant waste, and severe environmental pollution have become increasingly prominent. The contradiction of insufficient land, energy, and mineral resources is becoming more acute, and environmental pressure is increasing. Promoting resource recycling has become an urgent task. Generally, during civil construction, the construction waste, engineering mud, and excavated soil generated are simply piled up and dried. This requires a large area for stockpiling, and long-term stockpiling has a serious impact on soil quality, air quality, and water quality. It also poses traffic safety hazards and has high disposal costs, making it a rather thorny problem. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a waste slag recycling and treatment equipment.

[0004] The present invention adopts the following technical solution:

[0005] A waste slag recycling and processing device includes a slurry preparation unit and a mixing and discharging unit.

[0006] The pulping device mixes and stirs sand washing slurry, clean water, filter cake and tailings to make slurry. It includes a main pulper, a wastewater storage tank for supplying sand washing slurry to the main pulper, a clean water storage tank for supplying clean water to the main pulper, a first feeder for supplying filter cake and tailings to the main pulper, and a storage tank connected to the main pulper for temporarily storing the slurry. The first feeder mixes and stirs the incoming filter cake and tailings evenly before feeding them into the main pulper.

[0007] The mixing and discharging device includes a mixer connected to a storage tank, a sand supply mechanism connected to the mixer for supplying sand, and an additive supply mechanism connected to the mixer for supplying additives.

[0008] Furthermore, the pulping device also includes a first vibrating desander connected between the main pulper and the storage tank, the first vibrating desander removing materials with a particle size greater than 3mm from the slurry.

[0009] Furthermore, the storage tank includes a temporary storage tank connected to the first vibrating desander and a homogenization tank connected to the temporary storage tank. The homogenization tank is connected to a mixer, and the temporary storage tank is used to receive slurry with a particle size of less than 3 mm.

[0010] Furthermore, the additive supply mechanism includes a cement storage silo, a quicklime storage silo, a fly ash storage silo, which are respectively connected to the mixer, and multiple screw conveyors respectively disposed between the cement storage silo, the quicklime storage silo, the fly ash storage silo and the mixer.

[0011] Furthermore, the additive supply mechanism also includes a first metering bin and a second metering bin arranged at intervals above the mixer. The cement storage bin and quicklime storage bin are respectively fed to the first metering bin via screw conveyors, and the fly ash storage bin is fed to the second metering bin via screw conveyors. The upper end of the mixer is respectively formed with a first feed inlet and a second feed inlet connected to the first metering bin and the second metering bin.

[0012] Furthermore, the sand supply mechanism includes a sand silo for storing sand with a particle size of less than 12mm, a metering silo located at the outlet of the sand silo, and a sand conveyor belt connecting the metering silo and the mixer.

[0013] Furthermore, the pulping device also includes a transition pulper connected to the wastewater storage tank, a second feeder for supplying filter cake to the transition pulper, and a second vibrating desander connected between the transition pulper and the storage tank, wherein the transition pulper is connected to the clear water tank.

[0014] Furthermore, the wastewater storage tank includes a storage tank body, a stirring element rotatably disposed in the storage tank body, a first conveying pipe connected between the storage tank body and the main pulper, a second conveying pipe connected between the storage tank body and the transition pulper, a first conveying pump disposed on the first conveying pipe, and a second conveying pump disposed on the second conveying pipe.

[0015] Furthermore, the wastewater storage tank also includes a high-level liquid level gauge and a low-level liquid level gauge installed in the storage tank body.

[0016] Furthermore, the pulping device also includes a belt weighing scale disposed between the first feeder and the main pulper.

[0017] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: By limiting the structural composition of the recycling equipment, the present application can recycle and regenerate waste engineering soil resources to produce qualified materials that can be used for pipe gallery backfilling, thus solving the problem of waste soil disposal, improving resource utilization, reducing pollution, improving the environment, saving energy and reducing emissions, increasing resource utilization, promoting sustainable development, improving economic benefits and reducing carbon emissions. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the process of this application;

[0019] Figure 2This is a schematic diagram of the pulping device;

[0020] Figure 3 This is a schematic diagram of the mixing and discharging device;

[0021] In the diagram, 1-Pulping device, 2-Mixing and discharging device, 11-Main pulper, 12-Transition pulper, 13-Wastewater storage tank, 14-Clear water storage tank, 15-First feeder, 16-Second feeder, 17-First vibrating desander, 18-Second vibrating desander, 19-Storage tank, 10-Belt weighing scale, 131-Storage tank body, 132-Mixing component, 133-First conveying pipe, 134-Second conveying pipe, 135-First conveying pump, 136-Second conveying pump, 1 37-High level gauge, 138-Low level gauge, 191-Temporary storage tank, 192-Equalization tank, 3-Agitator, 31-First feed inlet, 32-Second feed inlet, 4-Sand supply mechanism, 41-Sand silo, 42-Metering silo, 43-Sand conveyor belt, 5-Additive supply mechanism, 51-Cement storage silo, 52-Quicklime storage silo, 53-Fly ash storage silo, 54-Other admixture storage silo, 55-Screw conveyor, 56-First metering silo, 57-Second metering silo. Detailed Implementation

[0022] The present invention will be further described below through specific embodiments.

[0023] Reference Figures 1 to 3 As shown, a waste slag recycling and treatment equipment includes a slurry preparation device 1 and a mixing and discharging device 2.

[0024] The slurry preparation unit 1 mixes and stirs washed sand slurry, clean water, filter cake, and tailings to form a slurry. It includes a main slurry preparation unit 11 and a transitional slurry preparation unit 12 arranged at intervals; a wastewater storage tank 13 for supplying washed sand slurry to the main slurry preparation unit 11 and the transitional slurry preparation unit 12 respectively; a clean water storage tank 14 for supplying clean water to the main slurry preparation unit 11 and the transitional slurry preparation unit 12; a first feeder 15 for supplying filter cake and tailings to the main slurry preparation unit 11; a second feeder 16 for supplying filter cake to the transitional slurry preparation unit 12; a first vibrating desander 17 connected to the main slurry preparation unit 11; a second vibrating desander 18 connected to the transitional slurry preparation unit 12; a slurry storage tank 19 connected to the first vibrating desander 17 and the second vibrating desander 18 respectively; and a storage tank located between the first feeder 15 and the main slurry preparation unit 11 or... The belt weighing scale 10 between the second feeder 16 and the transition slurry mixer 12, by defining the structure of the slurry mixing device 1, allows the main slurry mixer 11 to mix and process the incoming filter cake, tailings, and sand washing slurry to produce slurry. This effectively recovers the filter cake, sand washing slurry, and tailings generated during civil construction. In addition, by setting up the transition slurry mixer 12, it can be turned on when the production capacity demand is high to meet the demand. When the on-site production capacity demand is low, only the main slurry mixer 11 can be turned on to reduce energy consumption. The first vibrating sand remover 15 and the second vibrating sand remover 16 can screen the incoming slurry to remove material impurities larger than 3mm. The slurry smaller than 3mm is sent to the storage tank 19 for temporary storage, so that it can be used in the mixing and discharging device 2 later.

[0025] The wastewater storage tank 13 includes a storage tank body 131, a stirring element 132 rotatably disposed in the storage tank body 131, a first conveying pipe 133 connecting the storage tank body 131 and the main pulper 11, a second conveying pipe 134 connecting the storage tank body 131 and the intermediate pulper 12, a first conveying pump 135 disposed on the first conveying pipe 133, a second conveying pump 136 disposed on the second conveying pipe 134, and a high-level liquid level gauge 137 and a low-level liquid level gauge 138 disposed in the storage tank body 131. The stirring element 132 may be composed of stirring blades and a stirring motor to prevent the sludge in the wastewater storage tank 13 from settling.

[0026] The storage tank 19 includes two temporary storage tanks 191 arranged at intervals and a homogenization tank 192 disposed between the two temporary storage tanks 191. A first vibrating desander 17 is connected to the two temporary storage tanks 191 respectively through pipelines, a second vibrating desander 18 is connected to one of the temporary storage tanks, and the homogenization tank 192 is connected to both temporary storage tanks 191 respectively to homogenize the incoming slurry and prevent slurry sedimentation. Specifically, both the temporary storage tank 191 and the homogenization tank 192 are equipped with agitators to prevent the incoming slurry from sedimentation.

[0027] The mixing and discharging device 2 includes a mixer 3 connected to the homogenization tank 192, a sand supply mechanism 4 connected to the mixer 3 for supplying sand, and an additive supply mechanism 5 connected to the mixer 3 for supplying additives. The mixer 3 mixes and stirs the incoming slurry, sand, and additives to obtain the required finished product.

[0028] The sand supply mechanism 4 includes a sand silo 41 for storing sand with a particle size of less than 12mm, a metering silo 42 located at the outlet of the sand silo 41, and a sand conveyor belt 43 connected between the metering silo 42 and the mixer 3, wherein the sand is gray sand.

[0029] The additive supply mechanism 5 includes a cement storage silo 51, a quicklime storage silo 52, a fly ash storage silo 53, and other admixture storage silos 54, each connected to the mixer 3. Multiple screw conveyors 55 are respectively arranged between the cement storage silo 51, quicklime storage silo 52, fly ash storage silo 53, and other admixture storage silos 54 and the mixer 3. A first metering silo 56 and a second metering silo 57 are spaced apart above the mixer 3. Specifically, the cement storage silo 51 and quicklime storage silo 52 supply materials to the mixer 3 via the screw conveyors 55. The first metering bin 56 supplies materials, while the fly ash storage bin 53 and the other admixture storage bin 54 supply materials to the second metering bin 57 via a screw conveyor 55. The upper end of the mixer 3 is respectively formed with a first feed port 31 and a second feed port 32 connected to the first metering bin 56 and the second metering bin 57. Through the setting of the first metering bin 56 and the second metering bin 57, the cement, quicklime, fly ash and other admixtures entering the mixer 3 are metered. Furthermore, the other admixtures can be curing agents or other raw materials required for the finished product.

[0030] The working principle includes the following steps:

[0031] Pulping process: Washed sand slurry and clean water are pumped into sewage storage tank 13 and clean water storage tank 14, and then pumped to main pulper 11 or main pulper 11 and transition pulper 12 respectively through flow control pumps. Filter cake is fed into main pulper 11 and transition pulper 12 respectively through first feeder 15 and second feeder 16, and with belt metering scale 10. Tailings from waterworks enter main pulper 11 through first feeder 15 and belt metering scale 10. Main pulper 11 and transition pulper 12 work to mix and stir the incoming raw materials to make slurry, and then pumped to first vibrating sand remover 17 and second vibrating sand remover 18 respectively. The first vibrating sand remover 17 and second vibrating sand remover 18 respectively treat the incoming slurry to remove materials larger than 3mm, and send slurry smaller than 3mm to temporary storage tank 191 and homogenization tank 192 respectively to wait for feeding.

[0032] Mixing and discharging process: The slurry in the homogenization tank 192 is pumped to the mixer 3. The sand and lime less than 12mm is fed to the mixer 3 by the sand conveyor belt 43. At the same time, the cement storage silo 51, quicklime storage silo 52, fly ash storage silo 53, and other admixture storage silo 54 are sent to the mixer 3 by the screw conveyor 55 respectively. After being mixed evenly with the slurry and sand and lime, the mixture is sent out of the factory by olive-shaped truck.

[0033] This application, by defining the structural composition of the recycling equipment, enables the recycling of waste engineering soil resources to produce qualified materials applicable to pipe gallery backfilling. This solves the problem of waste soil disposal, improves resource utilization, reduces pollution, improves the environment, saves energy and reduces emissions, promotes sustainable development, improves economic benefits and reduces carbon emissions.

[0034] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model application and the contents of the specification should still fall within the scope of the present utility model application.

Claims

1. A waste slag recycling and treatment equipment, characterized in that: Includes a pulping device and a mixing and discharging device. The pulping device mixes and stirs sand washing slurry, clean water, filter cake and tailings to make slurry. It includes a main pulper, a wastewater storage tank for supplying sand washing slurry to the main pulper, a clean water storage tank for supplying clean water to the main pulper, a first feeder for supplying filter cake and tailings to the main pulper, and a storage tank connected to the main pulper for temporarily storing the slurry. The first feeder mixes and stirs the incoming filter cake and tailings evenly before feeding them into the main pulper. The mixing and discharging device includes a mixer connected to a storage tank, a sand supply mechanism connected to the mixer for supplying sand, and an additive supply mechanism connected to the mixer for supplying additives.

2. The waste slag recycling equipment according to claim 1, characterized in that: The pulping device also includes a first vibrating desander connected between the main pulper and the storage tank, which removes materials with a particle size greater than 3 mm from the slurry.

3. The waste slag recycling equipment according to claim 2, characterized in that: The storage tank includes a temporary storage tank connected to the first vibrating desander and a homogenization tank connected to the temporary storage tank. The homogenization tank is connected to a mixer. The temporary storage tank is used to receive slurry with a particle size of less than 3 mm.

4. The waste slag recycling equipment according to claim 1, characterized in that: The additive supply mechanism includes a cement storage silo, a quicklime storage silo, a fly ash storage silo, which are respectively connected to the mixer, and multiple screw conveyors respectively set between the cement storage silo, the quicklime storage silo, the fly ash storage silo and the mixer.

5. The waste slag recycling equipment according to claim 4, characterized in that: The additive supply mechanism also includes a first metering bin and a second metering bin arranged at intervals above the mixer. The cement storage bin and quicklime storage bin are respectively fed to the first metering bin via screw conveyors, and the fly ash storage bin is fed to the second metering bin via screw conveyors. The upper end of the mixer is respectively formed with a first feed inlet and a second feed inlet connected to the first metering bin and the second metering bin.

6. The waste slag recycling equipment according to claim 1, characterized in that: The sand supply mechanism includes a sand silo for storing sand with a particle size of less than 12mm, a metering silo located at the outlet of the sand silo, and a sand conveyor belt connecting the metering silo and the mixer.

7. The waste slag recycling equipment according to claim 1, characterized in that: The pulping apparatus also includes a transition pulper connected to a wastewater storage tank, a second feeder for supplying filter cake to the transition pulper, and a second vibrating desander connected between the transition pulper and the storage tank. The transition pulper is connected to a clear water tank.

8. The waste slag recycling equipment according to claim 7, characterized in that: The wastewater storage tank includes a storage tank body, a stirring component rotatably disposed in the storage tank body, a first conveying pipe connected between the storage tank body and the main pulper, a second conveying pipe connected between the storage tank body and the transition pulper, a first conveying pump disposed on the first conveying pipe, and a second conveying pump disposed on the second conveying pipe.

9. The waste slag recycling equipment according to claim 8, characterized in that: The wastewater storage tank also includes a high-level liquid level gauge and a low-level liquid level gauge installed in the main body of the storage tank.

10. The waste slag recycling equipment according to claim 1, characterized in that: The pulping device also includes a belt weighing scale installed between the first feeder and the main pulper.

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