38results about How to "Guaranteed to be harmless" patented technology

The invention provides a system and a method for drying sludge through the waste heat of a gas turbine. The gas turbine is connected with a generator; a flue gas outlet of the gas turbine is communicated with a waste heat boiler; a steam outlet of the waste heat boiler is communicated with a steam turbine; the steam turbine is connected with the generator; a steam extraction pipe of the steam turbine is communicated with an inlet of a heated surface pipe of an internal thermal type fluidized bed dryer; an air outlet of an air heater is communicated with an air inlet of the internal thermal type fluidized bed dryer; wet sludge enters the internal thermal type fluidized bed dryer through a wet sludge pipe, flows outside the heated surface pipe, is dried and then is discharged into a dry sludge pipe from a discharging hole. Steam is produced through the flue gas waste heat of the gas turbine to push a steam turbine generator set to generate power, and the waste heat of the steam turbine is taken as a heat source for drying the sludge, so that gradient energy utilization is realized, the heat efficiency is high, and a peculiar smell is not discharged; the fluidization air of the fluidized bed dryer is preheated by hot water, so that the energy utilization rate is further improved, and the environmental problems of groundwater pollution and the like caused by sludge burying and soil utilization are effectively solved.

The invention discloses a crusher with a self-cleaning function. The crusher is characterized in that a high pressure spray gun (with multiple nozzles) is placed on a working shaft to flush with an acid liquid or clean water, and the acid liquid or clean water and crushed materials together enter a reaction kettle directly for further treatment, so that a harmless link is guaranteed. In addition, the material of the crusher is also improved, so that the crusher is heat-resistant and corrosion-resistant and long in service life.

The invention discloses an integral type respiratory bag, comprising a hollow bag body and a joint which is arranged on a bag body connector, wherein a through hole on the joint is communicated with the inner part of the bag body. The integral type respiratory bag is characterized in that the bag body and the joint are integrally manufactured in a mould cavity by coating glue in a vibration manner, heating and molding. The invention further discloses a manufacturing method of the integral type respiratory bag. The bag body of the respiratory bag provided by the invention is manufactured in the glue vibration manner and thicker glue can be coated on a transition part between the side face and the bottom face of the bag body, so as to prevent fisheyes from being generated after the bag body is inflated. The respiratory bag provided by the invention is integrally molded and the joint does not need to be additionally arranged, so that the manufacturing procedure is simplified and the labor cost is reduced; viscose glue or adhesive does not need to be used for sticking so that the problem that the joint drops off due to poor sticking so as to cause air leakage is solved; and therefore, materials are saved and the production cost is reduced. With the adoption of the integral type respiratory bag provided by the invention, the phenomena of causing anaphylactic reaction of a human body and diffusing a pungent smell are avoided and no harm is caused to the human body.

The invention relates to the technical field of garbage treatment, in particular to a plastic garbage bionic sorting machine. The plastic garbage bionic sorting machine comprises a rack. The rack is provided with a shell. The shell is provided with a feeding inlet and a discharging outlet. An inner sorting device is arranged in the shell and driven by a power device. A screen net is further arranged on the rack and arranged at the lower end of the inner sorting device. According to the plastic garbage bionic sorting machine, compared with the prior art, the inner sorting device is arranged in the shell, thus, residue soil on plastic garbage can be effectively separated, the cleaning step of the plastic garbage is omitted, and the problem that classifying is not thorough during garbage classifying treatment is solved; classifying treatment and recycling of household garbage are achieved; and harmless, resourceful and reducing treatment of garbage is ensured.

The invention discloses a process for producing a biological bacterial fertilizer by taking domestic sewage plant dewatered sludge as a raw material. The process comprises the following steps of: mixing town domestic sewage plant dewatered sludge of which the sludge quality is consistent with the Disposal of Sludge from Municipal Wastewater Treatment Plant-Control Standard for Agricultural Use CJ-T309-2009 and the water content is 75-80 percent with a conditioning agent; performing high-temperature aerobic compost fermentation; screening and drying a compost finished product, and inoculating a special microbial strain; and pelletizing to obtain the biological bacterial fertilizer. The biological bacterial fertilizer produced with the process can be used for supplying a plenty of organic nutrients to crops, the nutrition absorption rates and disease resisting capabilities of crops are raised, remarkable yield increase of crops is realized, and the problem of sludge treatment of a large quantity of town domestic sewage plants is solved simultaneously.