81results about How to "Convenient and harmless disposal" patented technology

The invention discloses a preparation method of a battery-grade graphite-activated carbon composite material. The preparation method comprises the steps that 1, plant raw materials are washed clean with water and then contained in a metal tank, the metal tank is sealed and put into a muffle furnace, heating is conducted at the constant temperature of 450 DEG C to 650 DEG C, the temperature is naturally decreased to room temperature, and black solid activated carbon is obtained; 2, the obtained black solid activated carbon and graphite are put into a ball milling tank according to the mass ratio of 3:1-1:1, an appropriate amount of hydrochloric acid with the concentration of 0.2 M to1.0 M, an appropriate amount of sulfuric acid with the concentration of 0.1 M to 0.5 M, an appropriate amount of acetic acid with the concentration of 0.5 M to 1.2 M and an appropriate amount of water are sequentially added into the ball milling tank, ball milling is conducted for 0.5 hour to 2 hours under the condition that the ball-material ratio is equal to 1:10-1:20, and then acid washing and water washing are sequentially conducted, wherein sulfuric acid, hydrochloric acid and acetic acid are subjected to ball-milling washing three times to five times separately, and the water is subjected to ball-milling washing until the pH value of eluate is 6.8 to 7.2; 3, the washed graphite-activated carbon mixture is subjected to suction filtration and dried in an atmospheric environment, and the battery-grade graphite-activated carbon composite material is obtained. The preparation method has the advantages of being simple in process, rich in raw materials, short in manufacturing cycle and low in energy consumption and has good economic benefits, environmental benefits and social benefits.

The invention discloses a processing method of dead pigs based on microorganisms. The processing method comprises the following steps of: determining the size of a fermenting tank according to the cultivation scale; preparing rice husk, saw dust, rice bran, strains and water to prepare padding for the fermentation tank; excavating the padding to put the dead pigs from one end of the fermentation tank, wherein the distance from a pit to the ground of the bottom of the fermentation tank is 20cm; putting the dead pigs into the excavated underground tunnel while putting the dead pigs at an interval of 20cm of fermenting padding between layers of dead pigs; adding water to moisturize in the fermentation process, and turning the used area one time when the fermentation time is more than 6 days in summer and more than 10 days in winter. Organic matters such as the saw dust, the rice husk and the like are used as the padding; biological active bacteria are added to the padding; manual auxiliary raking is carried out, so that the dead bodies of the pigs and the padding are fully mixed; the dead bodies of the pigs are timely fermented, decomposed and transformed under the effect of the biological active bacteria in the padding. In addition, innocent treatment of the dead pigs is achieved; the environment is well protected.

The invention discloses an automobile axle fixing welding fixture which comprises a workbench. A fixed frame is fixedly installed on the left portion of the upper end of the workbench, a movable frameand a pushing mechanism are arranged on the right portion of the upper end of the workbench, the pushing mechanism is located on the right side of the movable frame, and a smoke discharging mechanismis fixedly installed on the front portion of the upper end of the workbench. A rotating mechanism is arranged on the upper portion of the left end of the fixed frame, a first clamping mechanism is arranged on the upper portion of the right end of the fixed frame, a second clamping mechanism is rotatably connected to the upper portion of the left end of the movable frame, the second clamping mechanism and the first clamping mechanism are located at the same height, a control box is fixedly installed in the middle of the left end of the workbench, and supporting feet are fixedly installed at the four corners of the lower end of the workbench. The automobile axle fixing welding fixture is suitable for fixing clamping work in an automobile axle welding process, operation is easy and fast, thewelding angle can be freely adjusted, and the work efficiency is effectively improved.

The invention discloses a zero emission circulating system for sealing treatment of regenerated lead smelting tail gas. A smelting furnace, a gravity dust collector, a bag type dust collector, a waterwashing dust collecting tower, an air compressor, a gas-liquid separator, an alkali washing desulfurizing tower and a circulating pipe are successively arranged according to a flowing direction of the smelting tail gas. By adopting multiple processes to collect dust first, carrying out pressurizing and liquefying to recover CO2 by means of a physical method, carrying out desulfurization and denitrification by means of a chemical method and finally, and supplementing O2 to residual gas to return to a smelting furnace, the smelting tail gas circulates in a closed system and is not discharge toair, so that the desulfurization cost is reduced greatly, the carbon recovery benefit is increased, and meanwhile, solid-liquid separation can be carried out to reduce lead dust residues by means of good solubility of a desulfurization product. The desulfurization product is treated harmlessly favorably. The process does not need high precision removal of sulfur and dust, so that the flue gas treatment difficulty is reduced greatly and the process is the most economical, cleanest and environment-friendly process.

The invention discloses a method of anti-leak treatment on a petroleum drilling place by adopting a composite geo-membrane, relating to the technical field of adopting composite geotechnical materials to treat leakage of the petroleum drilling place. The method comprises the following steps of firstly, leveling the place; secondly, paving the composite geo-membrane; thirdly, paving a leakage pipeline: arranging the leakage pipeline at a position of easily having leakage; fourthly, paving a lime-ash stabilizing layer: with crushed stones, lime and fly ash as raw materials, paving the lime-ash stabilizing layer on the composite geo-membrane, wherein the lime-ash stabilizing layer comprise the following raw materials in percentage by weight, calculated by occupying the total volume of the raw materials: 8-10 percent of the lime, 10-12 percent of the fly ash and the balance of the crushed stones; and fifthly, paving a crushed stone surface layer: paving a 8-10cm crushed stone surface layer on the lime-ash stabilizing layer. By adopting the invention, waste mud and waste liquid of petroleum can be prevented from polluting the drilling place to enable idle land after drilling to be in second plowing, thereby having the effects of protecting land resources and lowering the land using cost.

The invention discloses a treatment device for poultry and livestock died of diseases. The treatment device comprises a pre-heating mechanism, a mincing mechanism, a high-temperature sterilization mechanism and a containing mechanism, wherein the pre-heating mechanism comprises a pre-heating barrel; the pre-heating barrel is externally sleeved with a pre-heating cavity; the mincing mechanism comprises a mincing box; the mincing box is internally provided with a plurality of mincing roller groups which are used for mincing preheated poultry and livestock died of diseases into dregs sequentiallyfrom top down; each mincing roller group comprises two mincing rollers which are symmetrically arranged on the mincing box; a sterilization liquid nozzle is arranged on the top of the mincing box; the sterilization liquid nozzle is externally connected with a sterilization liquid storage cylinder; the high-temperature sterilization mechanism comprises a sterilization barrel which communicates with the mincing box; a spiral stirring paddle which is used for stirring the poultry and livestock died of diseases is horizontally arranged in the sterilization barrel; and high-temperature heating rods are arranged on two sides of the sterilization barrel. The device is reliable, practical, safe and convenient; the poultry and livestock died of diseases can be sterilized and minced thoroughly; andbetter innocent treatment for the poultry and livestock died of diseases is realized.

The invention discloses a biological-organic fertilizer capable of passivating soil heavy metals, which is composed of microbial strains, a carrier and a culture medium, and livestock dung, wherein the microbial strains are prepared by a silicate microbial agent, an organic material decomposing agent, and a bioremediating inoculant in the microbial content rate of 1:1:0.25; the livestock dung is mainly cow dung, and on dry basis, the organic material is greater than or equals to 45%, and the moisture is less than or equals to 25%. The invention also discloses a preparation method for the biological-organic fertilizer. The preparation method comprises the following steps: using the microbial strains, the carrier and the culture medium to conduct prefermentation to prepare microbial flora sourdough with high activity and high density; then mixing the microbial flora sourdough with the livestock dung to conduct secondary fermentation to prepare the microbial high quality bio-organic fertilizer capable of passivating the soil heavy metals. The biological-organic fertilizer contains special strains, and can switch heavy metals of cadmium, arsenic and the like with higher activity in the ionic state in soil to heavy metals in the complexing state with lower activity; therefore the heavy metals absorption of crops is lowered, and the content of heavy metals in agricultural products is reduced.

The invention discloses a heavy metal waste slag treatment method and a sulfur building material prepared thereby. The method comprises: soaking heavy metal waste slag in solution of sodium sulfide to pre-vulcanize excessive heavy metal ions in the waste slag into metal sulfides; drying the metal sulfides, grinding the metal sulfides and sieving the ground metal sulfides with a 100 mesh sieve; mixing the powder with sulfur uniformly, adding gypsum slag into the powder and the sulfur to obtain a mixture; filling the mixture in a mold, and placing the mold in a heating furnace to heat the mold at 140 to 150 DEG C with constant stirring till the sulfur melts and the heavy metal waste slag turns viscous; and taking the mold out 20 to 40 minutes later, compacting the mixture in the mold, cooling the mold and removing the mold to obtain the sulfur building material. The method can prevent the damages of freely discharged industrial waste slag with high heavy metal content to the environment by covering the heavy metal slag with sulfur to make the sulfur building material; and thus, the harmless treatment of industrial heavy metal waste slag is realized, the heavy metal waste slag is recycled and the utilization rate of the heavy metal waste slag is improved. The extraction procedure toxicity of the prepared sulfur building material is in complete accordance with the standards of Identification Standard for Hazardous Wastes-Identification for Extraction Procedure Toxicity (GB 5085.3-2007). The method can be used for high, medium and low content heavy metal waste slag.

The invention discloses a multi-stage printing and dyeing wastewater decolorizing treatment process, which comprises: S1, discharging printing and dyeing wastewater into an adjusting pool, and adjusting the flow rate of the wastewater; S2, introducing the wastewater in the adjusting pool into a neutralization pool, and neutralizing the printing and dyeing wastewater with dilute sulfuric acid to achieve a pH value of 6.5-8.0; and S3, introducing the wastewater in the neutralization pool into a precipitation pool, adding a coagulant into the precipitation pool, stirring the water tank for 10-30min at a rate of 30-80 r / min, carrying out standing precipitation for 0.5-2 h, and transporting the precipitate to drying equipment. According to the present invention, wastewater is subjected to multi-stage treatment of chemical flocculation, first filtration, decolorizing, second filtration, catalytic oxidation and the like on the basis of related equipment, such that the treated wastewater easily meet the standard discharge, and can meet the requirements of production water reuse, such that the process provides a set of the efficient and stable solutions for printing wastewater.

The invention discloses an adsorption device capable of regenerating an adsorbent on site and used for transformer oil regeneration. The adsorption device comprises a plate frame oil filter, a vacuum oil filter and a tank body provided with an oil inlet and an oil outlet. The adsorption device is characterized in that the tank body is internally provided with an upper filter screen and a lower filter screen; a middle filter screen I and a middle filter screen II are sequentially arranged between the upper filter screen and the lower filter screen; a decolorizing adsorbent layer is arranged between the upper filter screen and the middle filter screen I; a dielectric loss reduction adsorbent layer is arranged between the middle filter screen I and the middle filter screen II; a desulfurization adsorbent layer is arranged between the middle filter screen II and the lower filter screen; the tank body above the upper filter screen is provided with a detergent inlet; the bottom of the tank body is provided with a hot air inlet, and the top of the tank body is provided with a hot air outlet; the oil inlet is formed in the bottom of the tank body, and the oil outlet is formed above the upper filter screen. According to the adsorption device, degraded transformer oil can be comprehensively regenerated in the adsorption device, and a cleaning and heating device can be utilized for activating the adsorbent reaching adsorption saturation again, so that the adsorbent is recycled on site.

The invention relates to an aerobic composting waste heat power generation system and a working method thereof, and belongs to the field of organic solid waste resource utilization. The system comprises a waste collection device, a main composting reaction chamber, a waste heat power generation device and a tail gas collection device, wherein a heat conduction cover is arranged at the top of the main composting reaction chamber, the upper space of the main composting reaction chamber is a waste reactor body, the lower space of the main composting reaction chamber is a leachate collection device, a filter screen is arranged between the upper space and the lower space, and the main composting reaction chamber is further connected with an aeration device; the bottom of the heat conduction cover is connected with the reactor body through a heat conduction rod; a waste heat power generation device is installed on the upper surface of the heat conduction cover and is formed by connecting a plurality of semiconductor thermoelectric power generation pieces in series, wherein the electric energy generated by the semiconductor thermoelectric power generation pieces is transmitted to an electricity storage and supply device. According to the invention, heat can be recovered from organic wastes while the organic wastes are treated, and the problem of secondary pollution caused by excessivewaste heat of traditional compost is solved.

The invention discloses a sterilizing device with position adjustable microwave generators. The sterilizing device comprises a shell and a control device, wherein a feeding opening is formed in one side of the shell, and a discharging opening is formed in the other side of the shell, a rotating motor is arranged at the top of the shell, a timing device, a transmission device and a transmission motor are arranged in the shell, a fixing plate is arranged on the inner wall at the top end of the shell, a rotating rod is arranged on the fixing plate, a rotating plate is connected to the bottom end of the rotating rod, an infrared sensor is inlaid in the rotating plate, and the microwave generators are arranged at the bottom end of the rotating plate. The sterilizing device with the position adjustable microwave generators disclosed by the invention has reasonable design and high degree of automation, precisely adjusts the positions of the microwave generators, carries out pollution-free and more thorough disinfection and sterilization in a processing course and conveniently performs harmless treatment on livestock dead bodies and organic wastes in a large scale to effectively lower the pollution degree of a natural environment and improve the work efficiency.

The invention discloses an energy-saving implementation method applied to preparing composite materials by means of vertical drying and curing. The method increases air pressure inside a curing section or reduces air pressure inside a first volatilizing section to change the circulation direction of hot air inside a drying oven body by arranging an air curtain fan, an axial flow fan and a heater in the drying oven body or introducing an external fan, the hot air inside the drying oven body flows from top to bottom, the utilization rate of the air and the volatilizing efficiency of solvents are increased by means of the principle of 'backwash', spillage of waste gas is reduced, solvent vapor pressure in the waste gas is increased, and the waste gas can be collected to be harmlessly treated. Besides, as the heat of the heated air inside the drying oven body is reasonably used, the temperature of the exhausted waste gas is greatly reduced, the energy consumption of equipment is greatly reduced, and the energy saving effect of the equipment is realized.

The invention provides a liquid crystal display (LCD) harmless disassembly method, which dissembles the LCD into minimized decomposed components on a disassembly production line and recoveries the minimized decomposed components in a classified manner. The invention disassemblies each part of the LCD safely, and classifies the disassembled parts carefully, thus being in favor of improving recycling utilization rate and resource regeneration rate of waste LCD parts, processing waste liquid crystal in a harmless manner, reducing dangerous waste handling capacity, lowering pollution and controlling cost.

The invention discloses a mouse trap used for catching mice. The mouse trap comprises a mouse trap box, a downwards recessed part is formed in the bottom wall between two supporting legs of the mouse trap box, a mouse trap device is mounted at the downwards recessed part of the bottom wall in the mouse trap box, and the mouse trap further comprises an electric shock mouse pushing device and a solar power supply device for supplying power energy to the mouse trap device and the electric shock mouse pushing device. Continuous mouse catching is realized; self-use clean energy is further provided, the purposes of energy saving and environmental protection are achieved, the defects of higher power consumption and higher voltage of mouse trap circuits of existing mouse traps and higher mouse trap energy consumption are overcome, and the energy saving purpose is achieved.

The invention discloses a comprehensive recycle treatment method of waste liquid crystal display (LCD) secondary resources, which comprises following steps: (1) disassembling a waste liquid crystal display through methods of mechanical physical disassembly and electrostatic separation to obtain plastic parts, wire cables, liquid crystal glass base boards and polaroids; (2) dissolving the liquid crystal glass base boards in an organic solvent under a heating reflux condition to obtain the glass base boards being free of liquid crystal and the organic solvent containing the liquid crystal, and performing fractionation to the organic solvent containing the liquid crystal to collect the liquid crystal; (3) soaking the glass base boards being free of liquid crystal in a mixed solution composed of ammonia water and ammonium sulfate, and performing stirring and filtration to collect a filtrate and filter residues; and (4) performing micro-emulsion membrane method to the filtrate to extract indium, wherein the indium in the water phase after demulsification is extracted in a replacement manner and the micro-emulsion is subjected to heating regeneration treatment. The comprehensive recycle treatment method is beneficial to increase of recycle utilization rate and resource regeneration rate of the parts in the waste liquid crystal display, can maximumly achieve recycle and reuse of resources, and is significant in influence on environmental-protective economic and social benefits.

The invention relates to a pathological tissue dehydrator with an automated valve channel system, which comprises a working cylinder, three wax cylinders and a plurality of solvent bottles, wherein the three wax cylinders are respectively a first wax cylinder, a second wax cylinder and a third wax cylinder, output pipes of the first, second and third wax cylinders are respectively correspondingly provided with a first valve, a second valve and a third valve, the first, second and third valves are converged and communicated to an inlet of a three-position two-way reversing valve by pipes, an outlet of the three-position two-way reversing valve is communicated to the working cylinder by a pipe, the other inlet of the three-position two-way reversing valve is communicated with a rotary distributing valve by a pipe, a plurality of interfaces on the rotary distributing valve are respectively correspondingly communicated with the plurality of solvent bottles one by one, a rotating shaft of the rotary distributing valve is provided with a positioning plate, and the positioning plate is rotatablely connected with a stepping motor. According to the invention, paraffin waxes and other medicaments are separately supplied, and an effect of carrying out collection and harmlessness treatment on chemical volatile gases in other solvent bottles is achieved.

The invention discloses a sorted-collection and recycling system for milking and milk-storing facility washing water. The system comprises a milking machine end, a primary cooling heat exchanger, a milk storage tank, a cooling water tank, a refrigeration system, a hot-water supply tank, an acid-liquid supply tank, an alkali-liquid supply tank, an acid-liquid collection tank, an alkali-liquid collection tank and a hot-water collection tank; a milk outlet pipeline of the milking machine end passes through the primary cooling heat exchanger to the milk storage tank; and the hot-water supply tank,the acid-liquid supply tank and the alkali-liquid supply tank are connected to the milking machine end and the milk storage tank through a washing pipeline, a washing liquid outlet of the milk storage tank is connected with the acid-liquid collection tank, the alkali-liquid collection tank and the hot-water collection tank through a pipeline, and the acid-liquid collection tank and the alkali-liquid collection tank are connected to the washing pipeline through a pipeline. The system disclosed by the invention can realize recycling of acid and alkali liquids; and the hot-water collection tankcan collect washing hot water for washing a milk hall.

The invention provides a low-activation refractory medium-entropy alloy and a preparation method thereof. The low-activation refractory medium-entropy alloy is expressed as TiaVbHfcTad according to the atomic ratio, 2.5 < = a < = 5, 0.5 < = b < = 2.5, 2 < = c < = 3, 2 < = d < = 3, and a + b + c + d = 10, the low-activation refractory medium-entropy alloy is prepared by the following method: (1) selecting pure Ti, pure V, pure Hf and pure Ta raw materials according to the proportion, and carrying out smelting pouring or suction casting to form a casting or a required cast ingot; (2) rolling; and (3) performing casting or rolling piece heat treatment. The entropy alloy prepared through the method has the characteristics of being high in strength, excellent in plasticity and toughness and low in activation at the same time, solid solution strengthening is conducted by properly adjusting the V content of the alloy, the tensile strength of different grades from 900 MPa to 1500 MPa can be obtained, the excellent plasticity and other mechanical properties can be obtained, meanwhile, a stable BCC single-phase solid solution structure is achieved in a wide temperature range, and good rolling machining performance is achieved.

The invention discloses a milking and milk-storing system with waste-heat recovery and washing water sorted-collection functions. The system comprises a milking machine end, a primary cooling heat exchanger, a milk storage tank, a cooling water tank, a cooling system with a waste-heat recovery function, a hot-water supply tank, an acid-liquid supply tank, an alkali-liquid supply tank, an acid-liquid collection tank, an alkali-liquid collection tank and a hot-water collection tank; a milk outlet pipeline of the milking machine end passes through the primary cooling heat exchanger to the milk storage tank; and the hot-water supply tank, the acid-liquid supply tank and the alkali-liquid supply tank are connected to the milking machine end and the milk storage tank through a washing pipeline,a washing liquid outlet of the milk storage tank is connected with the acid-liquid collection tank, the alkali-liquid collection tank and the hot-water collection tank through a pipeline, and the acid-liquid collection tank and the alkali-liquid collection tank are connected to the washing pipeline through a pipeline. The system disclosed by the invention can realize recycling of acid and the alkali liquids; and the cooling system with the waste-heat recovery function is adopted, heat in milk can be finally moved to effluent of a condenser, and the heat is stored into a waste-heat recovery storage tank, so that thermal resources are saved.

The invention provides a method for comprehensively recovering valuable elements from high-arsenic-containing copper smelting soot. According to the method, the valuable elements in the high-arsenic-containing copper smelting soot are comprehensively recovered by carrying out the processes of (oxygen-enrichment) roasting, leaching, extracting, replacing and crystallizing on the high-arsenic-containing copper smelting soot, the recovery ratio of zinc, copper, lead and tin is all over 95%, and the recovery ratio of arsenic trioxide reaches over 95%. The method for comprehensively recovering the valuable elements, provided by the invention, has the advantages of reasonable technological process, high metal direct recovery ratio, low cost for treating three wastes and remarkable economic and social benefits.

The invention discloses a medicament for processing wastewater of wet desulfurization. The medicament comprises following components: 25 to 30 mg / L of a lime milk solution with a concentration of 5%;40 to 60 mg / L of organic sulfide with a concentration of 15%; 35 to 45 mg / L of chlorinated iron sulfate with a concentration of 40%; 9 to 10 mg / L of PAM with a concentration of 0.05%; and 2 to 3 mg / Lof hydrochloric acid with a concentration of 3%. The medicament is suitable for processing corrosive wastewater containing chlorine ions. At first, a lime milk solution is introduced into wastewater containing chlorine ions to remove heavy metals and a few of chlorine ions from the wastewater; then through chemical reactions, residual metal ions in the wastewater are removed through generated precipitates, finally, a chlorine removal is added to remove chlorine ions, chlorine ions in wastewater are completely removed, and subsequent wastewater harmless disposal becomes easier.

The invention discloses a pretreatment system and a pretreatment method for oily sludge. The pretreatment system comprises an oily sludge pretreatment device and a two-phase horizontal screw centrifugal dehydrator. The pretreatment system and the pretreatment method for the oily sludge have the advantages that few devices are used, each device is safe and reliable, the operation is convenient, the occupied area is small, the operation load is proper, and on-site rapid pretreatment and reduction of a large amount of oily sludge generated in the construction operation and ground production process of an oil well with high oil content, high water content and high solid content in a dispersed block can be realized; meanwhile, the environmental protection problem and the penalty problem caused by environmental pollution due to on-site discharge of the oily sludge are solved; the pretreatment system is convenient to transport, equipment is combined and integrated, can be moved in a skid-mounted mode and assembled on site, and the requirement for sludge pretreatment construction operation of an oil field at any time is met.

The invention discloses a leakage-proof leak-stopping filler. The leakage-proof leak-stopping filler comprises the following raw materials in parts by weight: 6 to 15 parts of aluminum hydroxide, 8 to20 parts of silica powder for ceramic, 10 to 25 parts of talcum powder, 4 to 10 parts of sodium silicate, 10 to 20 parts of nano calcium carbonate, 2 to 10 parts of superfine calcium carbonate, 4 to20 parts of bluestone powder, 2 to 8 parts of graphite, 2 to 10 parts of white asphalt and 3 to 10 parts of calcium oxide. The preparation method comprises the following steps: sequentially adding thesubstances into a container according to the parts by weight at normal temperature and normal pressure, uniformly mixing and stirring, and drying, crushing or sieving to obtain a granular product with the particle size of 0.05-0.8 mm. The raw materials are widely available; both physical filling and chemical micro-coagulation effect are realized; the leakage-proof leak-stopping filler can be dissolved in liquid, and enter into micro cracks along with liquid phase to form micro-gel, so that filling effect is improved; gel filling of stratums with different porosities is realized, so that the coagulation performance is improved, the problem that introduction of large particles is impossible, and retention of small particles is impossible is solved; plugging success rate is increased; wide applications in petroleum and geological drilling process are realized, and the leakage-proof leak-stopping filler is particularly suitable for being applied to fractured hard stratums and sandstone stratums.

The invention discloses a method for dehydrating waste drilling mud based on Fenton oxidation instability and scale adsorption weighted coupling. The method comprises the following steps: 1) oxidizingand destabilizing the waste drilling mud by using a Fenton reagent mainly composed of concentrated sulfuric acid, ferrous sulfate and hydrogen peroxide then regulating the pH value through calcium oxide to promote polymerization of ferric sulfate and ferric hydroxide and aggregation and deposition of calcium sulfate scale crystals on the surfaces of clay particles so as to realize weighting and flocculating settlement of the clay particles in the mud, so that destabilization dehydration of the waste drilling mud is finally realized. On the basis of fully considering the characteristics of high organic matter content, uniform clay dispersion, stable suspension system, high gel breaking instability difficulty, light clay particle weight, difficulty in sedimentation and the like of the wastedrilling mud, the invention provides an efficient instability dehydration method integrating oxidation destabilization, clay particle weighting and polymerization sedimentation of the waste drillingmud.

The invention discloses a sealed slitting device of an animal waste innocent treatment device. The sealed slitting device of the animal waste innocent treatment device comprises a square-box-shaped storage bin, two rollers, two reduction gearboxes and a motor, wherein two ends of the rollers respectively penetrate through two sides of the storage bin through a bearing seat, one ends of the rollers are fixed, and the other ends of the rollers are connected with the reduction gearboxes and the motor; the rollers are provided with crescent tooth tools and annular sleeves which are staggered at intervals; the side wall of the storage bin is provided with a tool groove which is matched with the tooth tools and the annular sleeves; an outlet at the bottom of the storage bin is connected with a material inlet; and the storage bin is provided with a sealed upper cover. The sealed slitting device of the animal waste innocent treatment device provided by the invention can rapidly slit common animals in disease, is simple in structure, is high in treatment speed, achieves innocent treatment thoroughly, and is an important technique and an important device for emergency handling of national and local major animal epidemic situations.

The invention discloses road concrete prepared from waterworks sludge powder and coral fine aggregate. The road concrete comprises the following components in parts by weight: 370-430 parts of cement,36-43 parts of waterworks sludge powder, 570-590 parts of river sand, 36-46 parts of coral fine aggregate, 1120-1170 parts of broken stone, 4-16 parts of quicklime powder, 1-4 parts of gypsum powder,166-183 parts of water and 5-9 parts of water reducing agent, wherein the water-binder ratio is 0.35-0.45. According to the invention, waterworks sludge powder is used as a mineral admixture to replace part of cement, and quicklime powder and gypsum powder are doped to further stimulate and improve the activity of the waterworks sludge powder; and coral fine aggregate is used for replacing part of river sand, aggregate grain composition and the 'micro-pump' effect of the coral aggregate are further improved, the local water-binder ratio of the aggregate surface can be adjusted, and the performance of concrete for roads is improved. The concrete for the road is prepared from the perspective of optimal design of cementing materials and aggregates, so that the performance of the concrete isimproved, the high-added-value green application of sludge powder and coral fine aggregates of waterworks is facilitated, and the comprehensive benefit is high.

The invention discloses a reaction kettle for solid waste treatment, and belongs to the technical field of solid waste treatment. The reaction kettle comprises a shell, a rotating device, a crushing device, a vibrating device, a closing device, a mixing device and a cleaning device, wherein the shell is arranged on the rotating device, a feeding opening and a discharging opening are formed in theshell, and a crushing disc is arranged in the shell; and a liquid inlet is further formed in the side wall of the shell, the crushing device is arranged in the shell, the crushing device is in runningfit with the crushing disc, the vibrating device is arranged in the crushing disc, the closing device is arranged at the bottom of the crushing disc, the mixing device is arranged at the inner bottomof the shell, and the cleaning device is arranged in the shell. According to the reaction kettle for solid waste treatment, the angle of the reaction kettle is adjusted according to different workingconditions, meanwhile, solid waste is crushed, and when the solid waste is treated, the solid waste is shaken off by adopting the vibrating device, so that the treatment efficiency and effect of thedevice are improved.

The invention provides green low-creep concrete, which is prepared from the following components in parts by weight: 340 to 385 parts of cement, 45 to 56 parts of waterworks sludge powder, 45 to 48 parts of white corundum powder, 622 to 652 parts of river sand, 69 to 72 parts of fine ceramic microbead aggregate, 1036 to 1087 parts of gravel, 136 to 192 parts of water and 4.5 to 4.8 parts of a water reducing agent. The green low-creep concrete provided by the invention is beneficial to harmless treatment of sludge, and also can reduce the consumption of resources such as cement and natural river sand.