7results about How to "Solve emission pollution" patented technology

The utility model discloses a comprehensive utilization system for tablet vanadium calcining flue gas, which is characterized in that a first regulating valve is arranged on a flue gas pipeline between a chimney I and an induced draft fan I, a calcining flue gas return main pipe is arranged on the flue gas pipeline, and the calcining flue gas return main pipe is divided into four branch pipes. According to the comprehensive utilization system, the tablet vanadium three-step method calcination flue gas is led back to be supplied to the melting furnace and the calcination flue gas furnace for low-oxygen gas combustion and supplied to the calcination flue gas furnace and the flash evaporation drying machine for low-temperature flue gas mixing, and the purposes of saving energy of a production line and reducing the oxygen content of the system are achieved. In addition, after tablet vanadium is calcined through a three-step method, ammonia-containing flue gas is led back to be used as a low-oxygen combustion-supporting body for combustion of a melting furnace and a calcination flue gas furnace, ammonia gas is decomposed into hydrogen and nitrogen, and pollution-free water vapor is generated after hydrogen is combusted. The problems of ammonia emission pollution and treatment are successfully solved, the investment and operation cost of the whole system is reduced, and meanwhile fuel consumption is reduced.

The invention discloses a rice soft-shelled turtle ecological breeding system which comprises a rice planting area, a soft-shelled turtle breeding area is arranged on one side of the rice planting area, the horizontal height of the soft-shelled turtle breeding area is larger than that of the rice planting area, and a peripheral dam is arranged on the outer side of the rice planting area. The peripheral dam is provided with a plurality of first water inlets and outlets which are communicated with the rice planting area and the water channel, the first water inlets and outlets are provided with first gates, the top of the inner dam is provided with an inner escape-proof net, the soft-shelled turtle breeding area comprises a first soft-shelled turtle breeding area and a second soft-shelled turtle breeding area which are communicated, the first soft-shelled turtle breeding area is provided with a liftable feeding table, and the second soft-shelled turtle breeding area is provided with a liftable feeding table. A separation net is arranged at the junction of the first soft-shelled turtle breeding area and the second soft-shelled turtle breeding area, and a passageway communicated with the rice planting area is arranged on the inner box dam on the outer side of the second soft-shelled turtle breeding area. The organic fertilizer is easy to obtain, the planting cost is reduced, the turtles are prevented from biting the roots of the rice, the survival rate of the rice is increased, feeding of the turtles is facilitated, and the breeding quality and the breeding efficiency are improved.

The present application provides a kind of paste pipeline blockage dredging device, including pressure release device, dredging pipe, dredging pipe transport device and passage excavation device;The pressure release device includes the buffer pipe section of tubular hollow structure with the same diameter as the system main pipeline pipe diameter;Its one side outlet is connected with paste pipeline conveying system main pipeline;The dredging pipe has multiple, stacked in dredging pipe transport device;Each dredging pipe includes outer sleeve and spiral inner tube, spiral inner tube is sleeved into outer sleeve, spiral inner tube can rotate in outer sleeve, the dredging pipe transport device is used to store, rotate, push, recycle dredging pipe, also discloses corresponding dredging method;Can be blocked in paste pipeline system, especially hard blocked section is pressure-tight dredged.Avoids the material leakage discharge and environmental pollution problem caused by cutting pipe, has strong adaptability, high flexibility, is easy to use and has strong dredging performance.

The invention provides a slurry pipeline blockage dredging device. The slurry pipeline blockage dredging device comprises an under-pressure feeding device, a dredging pipe, a dredging pipe conveying device and a passage excavation device, the under-pressure releasing device comprises a buffer pipe section which is of a tubular hollow structure and has the same diameter as the pipe diameter of the system main pipeline; an outlet end on one side of the main pipeline is connected with a main pipeline of the slurry pipeline conveying system; the plurality of dredging pipes are stacked in the dredging pipe conveying device; each dredging pipe comprises an outer sleeve and a spiral inner pipe, the spiral inner pipe is sleeved with the outer sleeve, the spiral inner pipe can rotate in the outer sleeve, the dredging pipe conveying device is used for storing, rotating, pushing and recycling the dredging pipes, and the invention further discloses a corresponding dredging method. And a blocked section, particularly a hard blocked section, in a slurry pipeline system can be subjected to closed dredging under pressure. And the problems of material leakage and discharge and environmental pollution caused by pipe cutting are avoided, the adaptability is high, the flexibility is high, the use is convenient, and the dredging performance is high.

The application discloses a kind of hydrocarbon conversion method and device, belong to coal bed gas technical field.The present application solves the problem that coal gas layer cannot fully play its resource value in prior art, including the following steps: step S1: raw gas is subjected to oxygen removal process in one-stage conversion, and raw gas A is obtained;Step S2: the obtained raw gas A is boosted, and raw gas B is obtained;Step S3: raw gas B is subjected to desulfurization, and desulfurized gas C is obtained;Step S4: desulfurized gas C is transported into the furnace tube of two-stage conversion furnace for hydrocarbon steam conversion reaction, and conversion gas D is obtained;Step S5: conversion gas D is transported into three-stage conversion furnace, and deep conversion reaction of methane is carried out, and conversion gas E is obtained;Step S6: after heat recovery, synthesis gas is obtained from conversion gas E.The present application provides three-stage conversion technology of hydrocarbon in view of the characteristics of high oxygen and nitrogen content in coal bed gas, solves the safe utilization problem of oxygen contained in coal bed gas and the problem of greenhouse gas emission polluting the environment.

The utility model provides a new energy unmanned tractor, relates to the technical field of agricultural machinery, and solves the technical problems of huge tail gas emission and noise in the prior art. The device comprises a machine body, two crawler walking mechanisms, a power output device, a battery, a water cooling system and an oil cooling system, the two crawler walking mechanisms are arranged on the two sides of the machine body respectively, the power output device is arranged on the machine body and close to the tail of the machine body, and the crawler walking mechanisms, the power output device, the water cooling system and the oil cooling system are all connected with the battery. The water cooling system is connected with the power output device, and the oil cooling system is connected with a hydraulic valve arranged on the machine body. The electrically driven tractor provided by the utility model fundamentally solves the problems of tail gas emission pollution and noise pollution caused by a traditional energy tractor.

A wastewater neutralization circulation device and method for crushing and sorting waste lead-acid batteries belongs to the field of comprehensive recycling of waste lead-acid batteries. The neutralization tank of the device outputs to a multi-stage sedimentation tank, the sedimentation slurry pump is connected to the multi-stage sedimentation tank, and the sedimentation slurry pump is transported to the neutralization tank; the multi-stage sedimentation tank is connected to the reaction tank; the crushing and sorting machine is connected to the sorting lead mud pump, and the sorting lead mud pump is connected to the reaction tank; the reaction tank is connected to the input port of the lead mud pump, and the lead mud pump is connected to the lead mud filter press; the lead mud filter press is connected to the acid tank; the acid tank is connected to the acid-resistant water pump, and the acid-resistant water pump is connected to the precision filter press; the precision filter press is connected to the neutralization tank; the slurry pump is connected to the neutralization tank, and the slurry pump is connected to the gypsum filter press; the gypsum filter press is connected to the neutralization tank; the lime silo transports the lime slurry to the slurry mixing tank through the ball mill, and the slurry mixing tank is transported to the neutralization tank. Advantages: convenient process operation, simple equipment structure, simple operation and maintenance, low operating cost, high efficiency, energy saving and environmental protection.