5results about How to "Reduce outbound volume" patented technology

The utility model relates to a garbage three-phase synchronous treatment system which comprises a garbage storage pool, a garbage transfer device, a primary screening mechanism, an ultra-high-temperature biological aerated filter and a secondary screening mechanism, and the primary screening mechanism comprises a shaftless screw feeder, a ball mill and a conical drum dewatering screen which are communicated with one another; the garbage transfer device is arranged between the garbage storage pool and the shaftless screw feeder, the ultra-high-temperature biological aerated filter is communicated with the conical drum dewatering screen, the secondary screening mechanism comprises a cyclone desander, a slurry dewatering screen and a screw squeezing dehydrator which are communicated with one another, the cyclone desander is communicated with the ultra-high-temperature biological aerated filter, and the slurry dewatering screen is communicated with the screw squeezing dehydrator. And the cyclone desander, the slurry dewatering screen and the screw squeezing dehydrator are all communicated with the shaftless screw feeder. According to the invention, the household garbage can be prepared into regenerated plastic particles or RDF fuel, can be used as asphalt and plastic filler, and can be used for producing various plastic profiles, road bricks and the like, so that the purposes of zero landfill and zero incineration are achieved, and the environmental benefit, the economic benefit and the carbon emission reduction effect are remarkable.

The utility model relates to an engineering slurry treatment system which comprises an engineering slurry storage pool, the storage pool is connected with a drum screening machine through a first pump body, an underflow output pipeline of the drum screening machine is connected with a first-stage grading cyclone, an underflow output pipeline of the first-stage grading cyclone is connected with a second-stage grading cyclone, and the second-stage grading cyclone is connected with a second-stage grading cyclone. An underflow output pipeline of the secondary classification cyclone is connected with a wheel bucket type sand washer, a sand output end of the wheel bucket type sand washer is connected with a dewatering screen, and a particle output end of the dewatering screen is connected with a belt conveyor. According to the system, engineering slurry can be conveniently treated, and sand recycling is achieved for resource utilization.

This invention discloses a method for treating abandoned culverts, comprising: sealing the abandoned culvert in sections; pre-burying a delivery pipe and a grouting pipe in each section of the culvert, with one end of the delivery pipe located at the lower part of the section and one end of the grouting pipe located at the upper part of the section; injecting foamed lightweight soil into the section of the culvert through the delivery pipe, so that the foamed lightweight soil fills the section of the culvert; after the foamed lightweight soil in the section of the culvert has initially set, injecting cement slurry into the section of the culvert under high pressure through the grouting pipe, the cement slurry penetrating and reinforcing the foamed lightweight soil to form a composite reinforcement layer. This invention solves the problems of water and soil pollution, high treatment costs, and high settlement risks associated with traditional culvert demolition during urban road renovation and upgrading.

The present invention discloses an integrated system for screening and solidifying and stirring shield slag slurry, including a support frame, a screening and separation module, a collecting and stirring module and a curing agent adding and homogenizing module; the screening and separation module includes a square hole screen, a transverse vibration motor, a longitudinal vibration motor and one or more spray pipes; the collecting and stirring module includes a collecting box and a horizontal stirring device installed in the collecting box, and the collecting box is located below the square hole screen; the curing agent adding and homogenizing module includes a mud pump, a conveying pipe and a curing agent automatic metering and adding device. The present invention realizes the continuous flow operation of shield slag coarse particles-mud separation, homogenization, and solidifying and stirring. With the help of the turbulent flow formed by the internal spacers of the conveying pipe, the curing agent and the mud are mixed in the conveying pipe, and there is no need to set up a mud homogenizing tank and a solidifying and stirring tank. The equipment occupies a small space and has a high degree of automation, providing equipment support for efficient and environmentally friendly treatment of shield slag.

The invention discloses hardened cement soil temporarily built on a construction site and a preparation method thereof, and belongs to the field of building construction. According to the cement soil technology, earthwork excavated on site is matched with cement and stone powder in a certain proportion, and the cement soil material with certain strength is manufactured in a site mixing mode. According to the cement soil technology, the use amount of on-site temporary construction concrete can be effectively reduced, the generation amount of construction waste is reduced, in addition, the technology is simple and convenient, the cost is reduced, meanwhile, on-site large-area hardening can be achieved, and the on-site safe and civilized construction image is improved. The form of on-site mixing of earthwork, cement and stone powder is adopted, compared with commercial concrete, the cost is lower, and the concrete can be directly used for backfilling after being broken in the later period.