92results about How to "Reduce environmental pollution" patented technology

The invention discloses a leaf nutrition state diagnosis and chemical fertilizer adjustment method based on image recognition. The method comprises the following steps: S1, collecting a leaf image; s2, performing denoising, enhancement and background removal on the image, extracting color, shape and texture features, and generating a leaf feature vector; s3, modeling by using a nonlinear dynamic chaotic system, detecting abnormal changes, and performing multi-scale chaotic analysis; s4, constructing a topological network for high-dimensional topological data analysis, and performing multi-modal data fusion in combination with a Bayesian network; s5, dynamically adjusting algorithm parameters according to a fusion result; s6, generating a diagnosis result through a generative adversarial network, image fusion and a deep artifact removal algorithm; and S7, constructing a cognitive intelligent agent and group intelligence optimization algorithm, and carrying out dynamic environment adaptation and closed-loop feedback regulation and control. According to the invention, the efficiency and accuracy of nutrition state diagnosis are improved, the fertilizer application is optimized, and the environmental pollution is reduced.

The invention relates to the technical field of steel gate machining, in particular to an electric arc welding device for a steel gate limited space, which comprises a base and an electric arc welding gun, the lower end of the base is movably provided with a transverse sliding seat through a transverse moving mechanism, and the upper end of the transverse sliding seat is fixedly connected with a portal frame penetrating through the base. According to the steel gate automatic welding device, the whole steel gate automatic welding device is mainly composed of the base, the transverse moving base, the longitudinal sliding table, the lifting rack, the four electric arc welding guns, the adjusting mechanism and the electric control part, automatic welding operation of the steel gate limited space can be achieved, and compared with original manual welding operation, the efficiency is improved by two times to four times; and meanwhile, an operator only needs to stand in front of the numerical control terminal for operation in the whole welding process, the safety problems of head congestion and dizziness, limb imbalance falling, welding smoke inhalation, welding smoke fumigation and the like during actual welding operation of the operator are avoided, and therefore the efficiency, safety and stability of welding operation of the steel gate in the limited space are improved.

The invention relates to an intelligent traffic equipment scheduling method and system, equipment and a medium, and the method comprises the steps: obtaining road data and traffic management information of a region where intelligent traffic equipment is located, carrying out the region division processing of the road data based on the traffic management information, and obtaining the corresponding region road information; acquiring real-time equipment data of the intelligent traffic equipment, and performing association processing on the real-time equipment data and the regional road information to obtain a corresponding real-time regional traffic group; obtaining road vehicle data collected by the intelligent traffic equipment, and performing road prediction on the regional road information according to the road vehicle data to obtain a corresponding road congestion trend; performing road prediction on the emergency vehicle information based on the road congestion trend to obtain a corresponding emergency vehicle predicted passing road section; and comprehensively analyzing the initial equipment control scheme and the predicted emergency vehicle passing road section to obtain a corresponding global adjustment strategy. According to the invention, the equipment control scheme can be flexibly adjusted according to the passing demand of the emergency vehicle.

The invention belongs to the technical field of civil engineering, and discloses a self-adaptive modified waste slurry carbon sequestration environment-friendly pile and a preparation method and application thereof.The preparation method comprises the following specific steps that (1) waste slurry is sieved, and impurities are removed for standby application; (2) a curing agent is added into the waste mud obtained in the step (1) and mixed to be uniform, modified waste mud is obtained, and the curing agent is prepared from, by mass, 60%-80% of slag, 20%-30% of an alkali activator, 5%-15% of industrial byproduct gypsum, 5%-10% of charcoal and 0-0.5% of a composite additive; and (3) adding the modified waste slurry into a mold, and performing drainage consolidation and maintenance to obtain the self-adaptive modified waste slurry carbon sequestration environment-friendly pile. According to the method, green high-added-value recycling of the waste mud and comprehensive utilization of a large amount of solid waste can be achieved, the treatment cost is reduced while carbon reduction and carbon sequestration are achieved, the soft soil foundation is effectively reinforced and improved, the problem of foundation settlement is solved, and the bearing capacity is improved.

The utility model provides multi-angle rotary experimental equipment for erosion corrosion of a high-temperature saline solution. The device is made of customized acrylic materials, a JJ-1B type motor is selected as a rotating motor, the diameter of a rotating disc is 100 mm, and three kinds of rotating discs with different impact angles are manufactured in total. The centers of the samples are fixed on a rotary erosion corrosion device through bolts, three parallel samples are arranged in each group, the experiment temperature is 80 + / -5 DEG C, and the experiment time is 120 hours. The experimental medium is deionized water and a 3.5% NaCl solution. The erosion corrosion resistance of the material can be further analyzed by recording weight change results and weightlessness experiment results of different samples.

The invention discloses a preparation method of low-freezing-point dipropylene glycol, which comprises the following steps: carrying out condensation reaction on propylene oxide and propylene glycol by using a solid acid catalyst, and carrying out post-treatment to obtain the low-freezing-point dipropylene glycol. The sulfonic acid is loaded on the high-porosity inorganic nanoparticles, and the surface of the inorganic nanoparticles is modified with the crown ether in the form of a long cantilever, so that the preparation process of the dipropylene glycol is simplified, the dipropylene glycol with a low freezing point is obtained, the purity and the yield of the dipropylene glycol are improved, and the method is suitable for industrial production. And the solid acid catalyst still has good catalytic activity after being recycled for many times.

The invention discloses a brake pad multi-angle grinding lathe and belongs to the technical field of brake pad grinding lathes, the brake pad multi-angle grinding lathe comprises a lathe bottom plate, a rotating part, a fixing part, a grinding part and a cooling part, a protective cover is fixedly connected to the upper surface of the lathe bottom plate, a door plate is hinged to the outer surface of the protective cover through a hinge, and the rotating part is arranged in the protective cover; two electromagnets are started through a control panel to generate a positive magnetic field, meanwhile, a magnetic sliding block generates negative magnetism, the magnetic sliding block is promoted to slide in a sliding rail, a grinding block is made to abut against a brake pad body, meanwhile, a driving motor and a rotating rod are matched with each other to drive the brake pad body to rotate, and therefore the brake pad body is ground; when the temperature sensor detects that the temperature exceeds a preset value, the control panel drives the electromagnet to generate a reverse electrode, the magnetic sliding block is promoted to drive the grinding block to move, a gap is generated between the grinding block and the brake pad body, and friction and heat generation are reduced.

The invention relates to a steel pickling process, and relates to the technical field of steel pickling. The steel pickling device comprises a conveying piece for conveying steel and a pickling device arranged at the top of the conveying piece and used for pickling the steel. The top of the pickling device is provided with an isolation bin used for covering the transportation part and the pickling device, the two ends of the isolation bin are each provided with a passing opening in a penetrating mode, the transportation part can penetrate through the passing openings, and the isolation bin is provided with a suction assembly used for sucking gas in the isolation bin in a communicating mode. A spray tower for treating acid gas is arranged on the suction assembly in a communicating manner; the acid pickling method has the effect of reducing environmental pollution caused by acid liquor volatilization in the acid pickling process.

This utility model provides a detachable reinforcement device for resisting longitudinal deformation of tunnels, including channel steel sections and connecting assemblies. The channel steel sections are arranged on the inner wall of the tunnel segment, extending parallel to the extension direction of the tunnel segment. At least two channel steel sections are connected to form a channel steel assembly. Each channel steel section includes a web and two identical flanges. The web has a first pre-drilled hole penetrating the web. The two identical flanges are symmetrically connected to both sides of the web, with the ends of the two flanges away from the web abutting against the inner wall of the tunnel segment. The connecting assembly includes a first bolt, a second bolt, and a third bolt. The first bolt is installed on the inner wall of the tunnel segment and located between the two flanges. The second bolt is a solid cylinder with a diameter the same as the diameter of the first pre-drilled hole. The third bolt has a first cylindrical through hole with a diameter the same as the diameter of the second bolt. The second bolt passes through the first pre-drilled hole and one end is connected to the first bolt. The third bolt secures the second bolt to the web.

The utility model relates to the technical field of liquid-solid pulp slag, in particular to a liquid-solid pulp slag treatment device which comprises a transfer tank, a main process pipeline is arranged on the transfer tank, an annular collecting pipeline is arranged on the main process pipeline, the main process pipeline is communicated with the annular collecting pipeline, an ore grinding machine for grinding pulp slag is arranged on the main process pipeline, and the annular collecting pipeline is communicated with the ore grinding machine. The main process pipeline is provided with an ore grinding machine, the ore grinding machine is provided with two leaching tanks for soaking slurry residues, the ore grinding machine is provided with two unloading hydrolysis tanks, the main process pipeline is provided with an induced draft fan for extracting gas, and the induced draft fan is provided with a primary absorption tower for absorbing the gas. Through the arrangement of the first-stage absorption tower and the second-stage absorption tower, gas generated after slurry residue leaching can be reasonably and effectively absorbed, potential safety hazards caused by the gas to the surrounding environment and workers are avoided, and the second-stage absorption tower can improve the gas absorption efficiency, so that the phenomenon of environmental pollution is reduced.

The utility model discloses a kind of acid-base unloading pump buffer tank and flushing water device, it is related to chemical equipment technical field;And the utility model includes unloading pump flushing inlet pipe, unloading acid-base pump, unloading pump flushing outlet pipe, acid-base pump machine seal flushing water inlet pipe, pump machine seal flushing water outlet pipe, buffer tank and control system, the unloading pump flushing inlet pipe is connected with unloading acid-base pump outlet pipe, first flushing inlet electric valve is equipped on the unloading pump flushing inlet pipe, the acid-base pump machine seal flushing water inlet pipe includes machine seal flushing inlet electric valve, the flushing water system of the utility model can be after unloading acid-base operation is completed remote control to unloading acid-base pump, conveying pipeline and buffer tank are flushed, without field operation, greatly improve cleaning efficiency, can thoroughly remove the acid-base liquid remaining in unloading pump, reduce equipment corrosion and environmental pollution, prolong the service life of equipment, reduce equipment maintenance cost.

The invention belongs to a fruit tree cultivation technology, in particular to a fruit tree pruning method based on branch-leaf-root synchronous growth, which is suitable for a fruit tree with at least three main branches. Different from a traditional strong-removing and strong-remaining method, the method adopts a weak-removing and strong-remaining strategy, and synchronous growth of branches, leaves and roots is realized through the following steps: firstly, performing head removing treatment on a main branch I, reserving 75-85% of length, selectively reserving vigorous branches of more than 1m, and forming inverted branches; in the second year, girdling the inverted branches to promote flower bud formation; after the fruits are harvested in the third year, the fruiting branches are cut off, and the second main branch is subjected to the same treatment; in the fourth year, the first main branches grow new branches again, and the process is repeated. According to the method, the main branches are trimmed and updated in turn, so that continuous growth and fruiting of the trees are kept, the yield and the fruit quality are improved, meanwhile, the influence on the environment is reduced, and the method has important economic and ecological values.

The utility model relates to the technical field of filtering and cleaning of chemical equipment, in particular to an ammonia water pump inlet filter cleaning device which comprises an ammonia water pump body, an inlet pipe is installed at the water inlet end of the ammonia water pump body, the water outlet end of the ammonia water pump body is communicated with an outlet pipe, and a filter is installed on the inlet pipe. The inlet pipe is communicated with a desalted water pipe, the outlet pipe is communicated with a return pipe, a circulating pipe is communicated between the desalted water pipe and the return pipe, a circulating pump is arranged in the middle of the circulating pipe, a liquid storage tank is arranged on one side of the circulating pump, and the liquid storage tank is communicated with the circulating pipe through a liquid conveying pipe. Desalted water circulating flushing is adopted to replace traditional direct liquid discharging, residual ammonia water in the filter and the ammonia water pump body is removed, the poisoning risk caused by volatilization of high-concentration ammonia water is reduced, the situation that GDS alarm is triggered and desalted water circulating flow washes impurities and crystals attached to the surface of a filter screen of the filter is reduced, the service life of the filter is prolonged, and the service life of the filter is prolonged. And the use and production cost is reduced.

The invention relates to an experimental device and an experimental method for wet granulation of solvent type supramolecular polyurethane urea, and belongs to the technical field of new materials. The device comprises a solvent polymerization reaction device, a feed liquid conveying device, a spraying and curing device, a separation device, a drying device and a screening and collecting device, the solvent polymerization reaction device, the feed liquid conveying device, the spraying and curing device and the separation device are sequentially connected, and the drying device and the screening and collecting device are sequentially arranged on the upper side of the separation device. The spraying and curing device comprises a spraying device and a curing device, the curing device is arranged below the spraying device, the curing device is connected with a separating device, the separating device comprises a filtering system and a curing agent recovery system, and the filtering system is connected with the curing agent recovery system. The particle size and shape can be accurately controlled by adjusting parameters, high-temperature operation is avoided, environmental pollution is reduced, the consistency and mechanical performance of products are remarkably improved, and the production efficiency is improved.

The invention relates to an internal release agent of a polyester molding compound and a preparation method of the internal release agent, reactants of the internal release agent comprise 48-60 parts by weight of fatty acid, 30-40 parts by weight of epoxy resin and 0.01-0.05 part by weight of a catalyst, and the reactants further comprise 2-20 parts by weight of maleic anhydride and 0.01-0.1 part by weight of a polymerization inhibitor. The internal release agent provided by the invention is liquid or paste, can be completely dissolved in resin used in a molding compound and is easy to add, an excellent demolding effect can be achieved only by using a small amount of the internal release agent, a product prepared from the internal release agent is good in surface gloss and high in quality, and the product added with the internal release agent does not need to be polished, so that the production cost is reduced. A product needing to be sprayed can be prepared only through simple cleaning and drying treatment, and the adhesive force of the product and the primer is not affected.

The utility model discloses a detachable folding cabinet with hidden hinges, and relates to the technical field of hardware. Comprising a key part hidden type hinge body, the hidden type hinge body comprises a hinge shaft, a left side chain and a right side chain, the hinge shaft is sleeved with the left side chain and the right side chain, a covering plate is arranged on one side of the left side chain, the end, away from the left side chain, of the covering plate extends to one side of the right side chain, and the right side chain is in an L shape. The hidden hinge main body can be automatically fixed left and right to serve as a connecting piece of a cabinet assembly, and the cabinet is formed by riveting or screw connection through the hidden hinge, so that the welding and polishing procedures of cabinet products are omitted, the health risk of workers and the environmental pollution are greatly reduced, and the production efficiency is improved. Meanwhile, the storage and packaging volume of the cabinet assembly is greatly reduced, transportation is more convenient, hinge gaps and hinge shafts are hidden through the covering plates, the appearance is more attractive, the cabinet assembly is not prone to being damaged by a saw, and use is safer.

The invention relates to a fertilizer synergist and a preparation method thereof, in particular to a fertilizer synergist which is based on natural components such as modified aspartic acid, alginate oligosaccharide, mannan oligosaccharide and magnetic polysaccharide and takes a fertilizer as a carrier. According to the fertilizer synergist, through the innovative modification of the modified aspartic acid and the synergistic effect of the natural polysaccharide, the utilization efficiency and the slow release property of a fertilizer and the nutrient absorption capacity of crops are remarkably improved. Compared with the traditional fertilizer synergist, the synergist disclosed by the invention can prolong the release time of nutrients, reduce the loss of the fertilizer and improve the yield of crops, has better environmental friendliness, and reduces possible pollution to soil and water in the fertilizer application process. The fertilizer synergist disclosed by the invention has remarkable advantages in the aspects of improving the fertilizer utilization rate, crop growth and soil environmental protection. The fertilizer synergist provides an efficient, environment-friendly and sustainable technical solution for agricultural production.

The invention is suitable for the technical field of garbage disposal, and provides a dewatering and crushing mechanism for kitchen garbage disposal and a using method thereof.The dewatering and crushing mechanism for kitchen garbage disposal comprises an assembling frame, a dewatering cylinder, a crushing cylinder, a crushing cylinder and a driving device, and the assembling frame is provided with the dewatering cylinder and used for disposing kitchen garbage; the crushing box is arranged on the assembly frame and is used for crushing the dehydrated kitchen garbage; the water collecting hopper is fixed on the assembly frame, is positioned below the dewatering cylinder and is used for collecting water seeping during dewatering of the kitchen garbage; the filter tank is fixed on the assembly frame, is communicated with the water collecting hopper through a connecting pipe, and is used for filtering the collected water. According to the dehydrating and crushing mechanism for kitchen garbage treatment and the using method thereof, provided by the scheme, efficient crushing of dehydrated kitchen garbage is realized, and the garbage treatment efficiency and the resource utilization value are improved.

The invention discloses an impact-resistant ultra-high performance concrete and a preparation method and application thereof, belonging to the technical field of building materials. It is prepared from the following raw materials by weight: 15-30 parts of micron-grade magnesium oxide, 15-30 parts of nano-grade magnesium oxide, 800-900 parts of cement, 100-130 parts of silica fume, 90-120 parts of fly ash microbeads, 280-320 parts of medium sand, 650-750 parts of fine sand and 130-170 parts of modified steel fiber; the modified steel fiber is modified by silane coupling agent hydrolyzate, with a length of 1.3-50 mm and a diameter of 0.10-0.20 mm. The invention improves the bonding performance between steel fiber and UHPC matrix through silane modification, and reduces the self-shrinkage of UHPC through multi-scale magnesium oxide compensation shrinkage to obtain UHPC with excellent impact resistance.

The present invention relates to the technical field of device status monitoring, and in particular to a method for status monitoring of a tin stripping wastewater treatment device. The method comprises the following steps: collecting process flow data of the tin stripping wastewater treatment device to obtain wastewater treatment process data; identifying high-risk areas of the tin stripping wastewater treatment device according to the wastewater treatment process data to obtain device high-risk area data; real-time monitoring of the electrochemical impedance spectrum of the tin stripping wastewater treatment device according to the device high-risk area data to obtain a regional electrochemical reaction dynamic model; real-time monitoring of the microstructure deformation of the tin stripping wastewater treatment device to obtain a regional microstructure deformation data set; collecting a mechanical structure diagram of the tin stripping wastewater treatment device to obtain a device mechanical structure diagram. The present invention realizes a comprehensive status diagnosis of the tin stripping wastewater treatment device and provides accurate device status data.

The invention relates to the technical field of closed weeding, and discloses a closed weeding system and method suitable for heavy soil in hilly areas, and the system comprises a collection module which is used for collecting terrain flatness and environment information; the processing module is used for determining the initial spraying speed of the precise rape direct seeding machine according to the terrain flatness, judging whether the initial spraying speed is adjusted or not according to the environment humidity, and adjusting the initial spraying speed according to the environment humidity to obtain a final spraying speed value; the processing module is also used for determining the spraying initial pressure of the rape precision direct seeding machine according to the wind speed, judging whether to adjust the spraying initial pressure according to the environment humidity, and adjusting the spraying initial pressure according to the environment humidity to obtain a spraying pressure final value; and the decision module is used for spraying weeding pesticide to the ground according to the spraying speed final value and the spraying pressure final value. The precision and consistency of spraying are improved, weed control of the rape field in the hilly area can be improved, pesticide is saved, and the weeding efficiency is improved.

The invention relates to the technical field of metal treatment, in particular to a high-performance metal part surface treatment device and process, and aims to improve the surface treatment efficiency and uniformity of metal parts. The device comprises a sand blasting box, a first rotating shaft, a plurality of mounting seats, a second rotating shaft, a bracket, a sand blasting head, a collecting box and the like. The sand blasting device is structurally characterized in that a plurality of supports are arranged in the sand blasting box and used for fixing metal parts, and synchronous autorotation of the metal parts is achieved through cooperation of gears and gear rings. The sand blasting medium and the spraying mode are optimized, and the treatment uniformity is improved; the spraying strength and angle are improved, the sand blasting efficiency is improved, the production period is shortened, and the safety is improved; the efficient recovery system reduces resource waste and meets the environmental protection requirement. The corrosion resistance and the wear resistance of the treated metal parts are remarkably improved, the service life is prolonged, and the maintenance cost is reduced.

The invention provides a method for preparing polymer environmentally friendly recycled concrete. The recycled concrete comprises the following raw materials in parts by weight: 500-800 parts of recycled concrete, 200-500 parts of cement, 25-50 parts of fly ash, 18-28 parts of silicate particles, 58-89 parts of polymer emulsion, 15-35 parts of glass fiber, and 13-30 parts of water reducer. The recycled concrete is prepared by screening raw materials, adding admixtures, adding polymers, adding additives, casting and molding, curing and hardening, etc., so as to effectively improve the mechanical properties of the recycled concrete and reduce the chloride ion content in the recycled concrete. The recycled concrete of the invention has good environmental protection, high strength and good durability, saves costs, and is convenient for construction. It is an environmentally friendly, high-strength and highly durable new building material and can be used as research in various concrete structure projects, such as buildings, roads and bridges, underground projects and the like.

This application discloses a slurry homogenizing device and a battery production system. The slurry homogenizing device includes a homogenizer, a piping assembly, a discharge valve, and receiving components. The homogenizer includes an inlet and an outlet. The piping assembly connects the inlet and outlet and supplies slurry flow. The discharge valve is connected in series with the piping assembly and is used to discharge the slurry. The receiving components are spaced below the discharge valve and are used to collect the slurry dripping from the discharge valve. In use, the slurry homogenizing device of this application discharges the slurry through the discharge valve for slurry testing. After the discharge is completed, the receiving components are positioned below the discharge valve to collect the slurry dripping from the valve, thereby reducing the possibility of slurry dripping onto the ground and causing environmental pollution.

The invention relates to the technical field of fish culture, and particularly discloses an offshore net cage cultured fish disease control method, which comprises the following steps: S1, introducing a proper amount of natural bait organisms into an offshore net cage, taking the natural bait organisms as a food source for fish culture, and simultaneously participating in construction of an ecological balance system in the net cage; a proper amount of natural bait organisms are introduced into the offshore net cage, the foundation of an ecological balance system is constructed in the offshore net cage, meanwhile, the food requirements of cultured fishes are met, the natural bait organisms serve as a direct food source of the cultured fishes, necessary nutrition is provided, growth and development of the fishes are facilitated, and the ecological balance is achieved. The introduction of the natural bait organisms also participates in the construction of an ecological balance system in the net cage, the diversity of the natural bait organisms is beneficial to enhancing the immunity of the fishes and improving the resistance of the fishes to diseases, and through the regulation and control of a natural food chain, the environmental pollution possibly generated in the culture process is reduced.

The utility model provides medical cloth cutting equipment which comprises a bottom plate, a conveying device used for conveying cloth is arranged in the middle of the bottom plate, a first supporting frame is arranged at the left end of the bottom plate, a plurality of hydraulic oil cylinders are arranged at the upper end of the first supporting frame, and the output ends of the hydraulic oil cylinders penetrate through the upper side wall of the first supporting frame to be jointly connected with a supporting plate. The lower end of the supporting plate is connected with a laser cutter, and the left end of the first supporting frame is provided with an adsorption device used for adsorbing waste gas and smoke dust. According to the medical cloth cutting equipment, the laser cutter can be moved through the moving assembly, so that the position of the laser cutter for cutting medical cloth is changed, and the cutting flexibility is improved; in addition, the adsorption angle of the dust collection cover can be adjusted through the adjusting mechanism, the possibility of dust diffusion is reduced, and therefore the dust collection efficiency is improved.

The invention relates to the technical field of garbage classification equipment, in particular to an intelligent garbage classification and compression device and a working method thereof. The device comprises a box body, a garbage throwing opening outside the box body, a garbage bag conveying track at the garbage throwing opening, a bag dumping device in the box body, a dispersing device, an intelligent speed control device, a sorting device, an intelligent identification camera on the left side of the sorting device, and four garbage classification areas on the lower part of the box body, wherein the dispersing device, the intelligent speed control device and the sorting device are arranged below the bag dumping device in the box body; the compression device is arranged below the sorting device; garbage is fully separated from garbage bags through the bag dumping device, accurate sorting is achieved through the sorting device, then efficient compression is conducted through the compression device, efficient and accurate garbage classification is achieved, environmental pollution is reduced, the resource recycling rate is increased, the labor cost is reduced, and the space utilization rate is increased, and the device is suitable for various places and has wide application prospects. Meanwhile, the environmental awareness of the public is also improved.

This application relates to a battery cell baking apparatus, a control system thereof, and a battery cell baking process. A vacuum breaking pipeline is divided into a first branch and a second branch that are independent of each other. Before a battery cell in a reaction chamber is baked, gas is heated and pressure-regulated first. Before the gas reach a standard condition, the first branch is configured to discharge the gas. Once the gas meets the standard, the second branch is quickly switched on to introduce the gas into the reaction chamber. This avoids a problem of low moisture removal efficiency of the battery cell caused by battery cell aspiration in a gas environment of ambient temperature and pressure, thereby accelerating moisture removal efficiency.

Pants (diaper) for urine or feces capable of disposing of urine or feces several times in a sanitary condition are disclosed. The pants for urine / feces comprises a pants member configured to have an internal space, a space division member connected to the pants in the internal space, thereby dividing the internal space into a first space and a second space and an expansion section disposed in the second space. Here, a hip of a user or the hip and a thigh locate in the first space, the hip or the hip and the thigh are lifted when the expansion section is expanded in the second space to form a space for urine / feces where the urine / feces is collected.

The invention discloses a method for preparing cyclopentenone substances through furanol rearrangement-hydrogenolysis, and belongs to the field of fine organic chemicals. The process comprises the following steps: mixing furfuryl alcohol compounds (furfuryl alcohol, 5-methyl furfuryl alcohol and 2, 5-dimethylolfuran) with a water solvent according to different concentrations, adding a cobalt disulfide (CoS2) catalyst, and reacting in a hydrogen environment of 0.5-1.5 MPa at the reaction temperature of 160-200 DEG C; the 2-cyclopentenone / 3-methyl-2-cyclopentenone is obtained by adopting a rearrangement-hydrogenolysis method, the process is simple, the operation is convenient, the catalyst is cheap and easy to obtain and can be recycled for multiple times, and industrialization is easy. When the conversion rate of 2-cyclopentenone synthesized by furfuryl alcohol reaches up to 100%, the yield reaches up to 90%; when the conversion rate of the 3-methyl-2-cyclopentenone synthesized from the 5-methylfuranol and the 2, 5-dimethylolfuran is up to 100%, the yields are up to 80% and 78% respectively.